JP2018136296A - Portable electronic devices - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable electronic device provided with a plate-shaped inverted F-shaped antenna which can be housed in a small case. SOLUTION: An electronic clock W as a portable electronic device is arranged so as to overlap a plate-shaped first conductor element 51 including a power feeding element 54 as a feeding unit and the first conductor element in a plan view. , A plate-shaped second conductor element 52 including a grounding portion 55, a short-circuit portion 53 connecting the first conductor element and the second conductor element, and a first conductor element and a second conductor element. Includes a non-conductive main plate 60, which is arranged between and to which a step motor 58 or the like as a driving element is attached. [Selection diagram] Fig. 3

Description

  The present invention relates to a portable electronic device having a satellite positioning function such as GPS.

  For example, when a GPS (Global Positioning System) receiver is incorporated in a small casing of a portable electronic device such as a wristwatch, it is necessary to reduce the volume of the antenna used in the receiver as much as possible.

  For example, Patent Document 1 describes a portable electronic device in which a patch antenna capable of receiving GPS radio waves from a GPS satellite (positioning satellite) is mounted so as to overlap a movement. The patch antenna used here utilizes the wavelength shortening effect of a dielectric, and can receive GPS radio waves by using a dielectric having a large relative dielectric constant. However, since the patch antenna described in Patent Document 1 uses a dielectric having a high relative dielectric constant so that GPS radio waves can be received, there is a limit to downsizing, and portable electronic devices There is a problem that the layout occupancy in the case becomes high and the dielectric used for utilizing the wavelength shortening effect becomes expensive.

  Incidentally, Patent Document 2 describes a plate-like inverted F-type antenna that can receive GPS radio waves from GPS satellites. In this plate-like inverted F-type antenna, a plate-like radiating conductor plate is disposed on a plate-like ground conductor surface, and the radiating conductor plate and the ground conductor surface are provided with a feeding conductor plate (feeding portion) and a short-circuiting conductor plate ( Short circuit part).

  Further, in Patent Document 3, a plate-like radiation conductor portion is disposed so as to cover a circuit board on which a grounding pattern (GND layer) is laminated, and short-circuited with a feeding conductor portion derived from the radiation conductor portion. A plate-like inverted F-type antenna is described in which a conductor portion is connected to a circuit board. Here, it is possible to arrange components on the circuit board.

Japanese Patent Laid-Open No. 10-197662 Japanese Patent Laid-Open No. 2004-312166 Japanese Patent Laid-Open No. 2005-5866

  However, the plate-like inverted F-type antennas described in Patent Document 2 and Patent Document 3 have the equivalent electrical length of one side compared to the patch antenna, for example, the wavelength of the GPS radio wave obtained by Formula 1 as shown below. Although it can be shortened to a size of λ / 4 (5 cm) of λ (= 20 cm), an antenna of this length can be accommodated in a case of a portable electronic device (for example, a wristwatch) depending on the size of the watch. There were cases where it was not possible.

<Calculation Formula 1>
c (speed of light) = Freq (GPS frequency) × λ
c = 0.3 × 10 ⁹ (km / sec), Freq = 1.75442 × 10 ⁹ (Hz)
λ = c / Freq = (0.3 × 10 ⁹ ) / (1.57542 × 10 ⁹ ) = 20 (cm)

  SUMMARY An advantage of some aspects of the invention is to solve at least a part of the problems described above, and the invention can be implemented as the following forms or application examples.

  [Application Example 1] A portable electronic device according to this application example is arranged so as to overlap with the first conductor element in a plan view, with a plate-like first conductor element connected to a power feeding unit, A plate-like second conductor element including a grounding portion; a short-circuit portion connecting the first conductor element and the second conductor element; the first conductor element and the second conductor element; And a non-conductive ground plane to which the driving element is attached.

  According to the portable electronic device described in this application example, the non-conductive ground plane is regarded as a dielectric, and the wavelength-shortening effect of the ground plane is used, so that the plate-like first connected to the power feeding unit is used. A plate-like inverted F-type antenna composed of a conductor element, a plate-like second conductor element including a grounding portion, and a short-circuit portion connecting the first conductor element and the second conductor element is compact. Can be Thereby, the plate-like inverted F-type antenna can be accommodated in the case of a small portable electronic device (for example, a wristwatch). If the plate-like inverted F-type antenna having such a configuration is accommodated in the case, a small portable electronic device can be realized.

  Application Example 2 The portable electronic device according to the application example described above preferably includes a circuit board on which a circuit for controlling at least the drive element is configured.

  According to this application example, the drive element can be controlled by including at least the circuit board on which the circuit (control circuit) for controlling the drive element is configured.

  Application Example 3 In the portable electronic device according to the application example, it is preferable that the ground plane and the circuit board are disposed between the first conductor element and the second conductor element.

  According to this application example, the ground plane and the circuit board are arranged in the space between the first conductor element and the second conductor element as compared with the structure in which the antenna is superimposed on the movement as in the prior art document 1. By doing so, the placement efficiency can be increased, and a portable electronic device with a reduced thickness can be obtained.

  Application Example 4 In the portable electronic device according to the application example described above, the portable electronic device includes a first anti-magnetic plate and a second anti-magnetic plate, and the ground plate and the circuit board include the first anti-magnetic plate and the first anti-magnetic plate. It is preferable to arrange | position between 2nd magnetic-resistant plates.

  According to this application example, it is possible to reduce the influence of the magnetic field received from the outside on the ground plane and the circuit board disposed between the first magnetic resistance plate and the second magnetic resistance plate.

  Application Example 5 In the portable electronic device according to the application example, the first magnetic plate, the ground plate, the circuit board, and the second magnetic plate are the first conductor element and the second magnetic plate. It is preferable to arrange | position between these conductor elements.

  According to this application example, the first anti-magnetic plate is disposed by arranging the first anti-magnetic plate, the ground plate, the circuit board, and the second anti-magnetic plate between the first conductive element and the second conductive element. A portable electronic device capable of increasing the arrangement efficiency and reducing the thickness as compared with the case where a board, a ground plane, a circuit board, etc. and an antenna including the first conductor element and the second conductor element are separately arranged. It can be.

  Application Example 6 In the portable electronic device according to the application example, it is preferable that the second conductor element is disposed between the ground plane and the circuit board.

  According to this application example, the second conductor element can be disposed between the ground plane and the circuit board, and variations in arrangement can be varied.

  Application Example 7 In the portable electronic device according to the application example described above, the first conductor element, the ground plane, the second conductor element, and the circuit board are the first antimagnetic plate and the second antimagnetic plate. It is preferable to arrange between the magnetic-resistant plates.

  According to this application example, the first conductor element, the ground plane, the second conductor element, and the circuit board are arranged between the first and second anti-magnetic plates, so that the current is anti-magnetic. It can be set as the portable electronic device which reduced the current loss resulting from flowing into a board.

  Application Example 8 In the portable electronic device according to the application example, it is preferable that the driving element includes a motor and a gear.

  According to this application example, the timing operation can be easily performed by including the motor and the gear in the driving element.

  [Application Example 9] A portable electronic device according to this application example is arranged so as to overlap with the first conductor element in a plan view and the plate-like first conductor element connected to the power feeding unit, A plate-like second conductor element including a grounding portion; a short-circuit portion connecting the first conductor element and the second conductor element; the first conductor element and the second conductor element; A non-conductive date wheel and a non-conductive date wheel presser disposed between the second conductive element and the second conductive element on a side opposite to the first conductive element side of the second conductive element. And a movement arranged to overlap with each other.

  According to the portable electronic device described in this application example, the non-conductive date indicator and date indicator holder are regarded as dielectrics, and the wavelength reduction effect by the date indicator and date indicator holder is used to It is comprised by the plate-shaped 1st conductor element connected, the plate-shaped 2nd conductor element containing a ground part, and the short circuit part which has connected the 1st conductor element and the 2nd conductor element. The plate-like inverted F-type antenna can be downsized. In addition, since the movement is arranged on the opposite side of the second conductor element to the first conductor element side so as to overlap the second conductor element, the arrangement efficiency can be improved. Accordingly, the plate-like inverted F-type antenna and the movement can be accommodated in the case of a small portable electronic device (for example, a wristwatch). If the plate-like inverted F-type antenna and the movement having such a configuration are accommodated in the case, a small portable electronic device can be realized.

  Application Example 10 In the portable electronic device according to the application example described above, it is preferable that the circuit board is included and the movement is disposed between the second conductor element and the circuit board.

  According to this application example, the placement efficiency can be increased by placing the movement between the second conductor element and the circuit board.

  Application Example 11 In the portable electronic device according to the application example, the power feeding portion of the first conductor element is connected to a power feeding terminal of the circuit board, and the grounding portion of the second conductor element is The circuit board is preferably connected to a ground terminal.

  According to this application example, with such a configuration, a plate-like inverted F-type antenna can be configured.

  Application Example 12 In the portable electronic device according to the application example described above, the first conductor element and the second conductor element may be at least one of a metal structure and a metal coating. preferable.

  According to this application example, it is possible to configure the first conductor element and the second conductor element that can be made thinner and can be easily formed.

  Application Example 13 In the portable electronic device according to the application example, it is preferable that the first conductor element, the second conductor element, and the short-circuit portion are formed in an integral structure.

  According to this application example, the first conductor element, the second conductor element, and the short-circuit portion can be more efficiently formed.

  Application Example 14 In the portable electronic device according to the application example, it is preferable that the short-circuit portion includes a bending portion.

  According to this application example, the bending portion can function as a buffer portion that buffers an impact received from the outside.

  Application Example 15 In the portable electronic device described in the application example, it is preferable that the short-circuit portion includes a plurality of connection portions.

  According to this application example, by providing a plurality of short-circuited portions, the contact resistance of the short-circuited portions can be reduced, and the resistance of the plate-shaped inverted F-type antenna can be reduced and more increased by the plate-shaped inverted-F-type antenna itself. The current can flow widely. For this reason, the loss of the plate-like inverted F-type antenna itself can be reduced.

  Application Example 16 In the portable electronic device according to the application example described above, a plurality of the short-circuit portions are arranged, and a first virtual circuit that connects the short-circuit portion located at one end and the center of the first conductor element. The angle θ formed by the line and the second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element preferably satisfies 0 ° <θ ≦ 90 °. .

  According to this application example, by providing a plurality of short-circuited portions, the contact resistance of the short-circuited portions can be reduced, and the resistance of the plate-shaped inverted F-type antenna can be reduced and more increased by the plate-shaped inverted-F-type antenna itself. The current can flow widely. For this reason, the loss of the plate-like inverted F-type antenna itself can be reduced. In addition, a first imaginary line connecting the short-circuit portion located at one end and the center of the first conductor element, and a second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element. And the short circuit portion located at one end and the short circuit portion located at the other end at a position satisfying 0 ° <θ ≦ 90 °, The resonant frequency of the inverted F-shaped antenna can be increased so that it can resonate with the frequency of the received satellite radio wave.

  Application Example 17 In the portable electronic device according to the application example described above, a plurality of the short-circuit portions are arranged, and a first virtual circuit that connects the short-circuit portion located at one end and the center of the first conductor element. The angle θ formed by the line and the second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element preferably satisfies 0 ° <θ ≦ 170 °. .

  According to this application example, by providing a plurality of short-circuited portions, the contact resistance of the short-circuited portions can be reduced, and the resistance of the plate-shaped inverted F-type antenna can be reduced and more increased by the plate-shaped inverted-F-type antenna itself. The current can flow widely. For this reason, the loss of the plate-like inverted F-type antenna itself can be reduced. In addition, a first imaginary line connecting the short-circuit portion located at one end and the center of the first conductor element, and a second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element. And the short-circuit portion located at one end and the short-circuit portion located at the other end at positions satisfying 0 ° <θ ≦ 170 ° The resonant frequency of the inverted F-shaped antenna can be increased so that it can resonate with the frequency of the received satellite radio wave.

  Application Example 18 In the portable electronic device according to the application example described above, the first conductor element is disposed on the opposite side of the first conductor element from the second conductor element side so as to overlap the first conductor element. And a solar panel that is disposed between the dial and the first conductor element and generates light by receiving light incident from the dial side.

According to this application example, the dial arranged so as to overlap the first conductor element on the side opposite to the second conductor element side of the first conductor element, the dial and the first conductor element, And a solar panel that receives light incident from the dial side and generates electric power can be efficiently arranged.
Further, by setting the size of the first conductor element to be equal to or larger than the size of the solar panel, radio waves can be received without being affected by the solar panel. Further, by sharing the metal surface of the solar panel with the first conductor element, it is possible to reduce the size as compared with the case where the solar panel is not shared.

  Application Example 19 In the portable electronic device according to the application example described above, between the outer edge of the first conductor element that is included inside the case and includes the metal case, and the inner wall of the case The distance is preferably 1 mm or more in plan view.

  According to this application example, the distance between the outer edge of the first conductor element accommodated inside the case and the inner wall of the case is set to 1 mm or more in a plan view, so that the metal case can be obtained. However, GPS radio waves can be reliably received at the outer edge of the first conductor element. In addition, by using a metal case, radiation efficiency can be made high (for example, 74%), and the reception performance as a plate-shaped inverted F-type antenna can be improved.

  Application Example 20 In the portable electronic device according to the application example described above, it is preferable that the first conductor element is a first anti-magnetic plate.

  Application Example 21 In the portable electronic device according to the application example described above, it is preferable that the second conductor element is a second magnetically resistant plate.

  Application Example 22 In the portable electronic device according to the application example described above, it is preferable that the ground plane and the circuit board are disposed between the first magnetically resistant plate and the second conductor element.

  Application Example 23 In the portable electronic device according to the application example described above, it is preferable that the second magnetically resistant plate is disposed between the ground plane and the circuit board.

  By using the configurations of the application example 20 to the application example 23, it is possible to realize a thinner internal structure that includes a plate-like inverted F-type antenna.

  Application Example 24 In the portable electronic device according to the application example described above, it is preferable that the portable electronic device includes a solar panel supported by a support portion, and the support portion also serves as the first conductor element.

  According to this application example, the internal structure can be reduced in size by using the support portion of the solar panel also as the first conductor element as compared with the case where the solar panel support portion is not used.

  Application Example 25 In the portable electronic device according to the application example described above, it is preferable that at least a part of the first conductor element is outside the outer edge of the solar panel in a plan view.

  According to this application example, by setting the size of the first conductor element to be equal to or larger than the size of the solar panel, radio waves can be received without being affected by the solar panel. Further, by sharing the metal surface of the solar panel with the first conductor element, it is possible to reduce the size as compared with the case where the solar panel is not shared.

  Application Example 26 In the portable electronic device according to the application example described above, it is preferable that the first conductor element has a through hole, and a rotation shaft is disposed in the through hole.

  According to this application example, since the rotation shaft is disposed in the through hole provided with the first conductor element, analog display using the indicator needle can be performed.

  Application Example 27 In the portable electronic device according to the application example described above, it is preferable that the electric power generated by the solar panel is input to the circuit board by a conduction unit arranged along the short-circuit unit.

  According to this application example, the influence of the solar panel on the antenna can be reduced by arranging the conductive portion along the short-circuit portion.

  Application Example 28 In the portable electronic device according to the application example described above, it is preferable that the conductive portion includes a coil.

  According to this application example, the high-frequency component in the solar panel can be cut by the coil included in the conducting portion arranged along the short-circuit portion, and the influence of the solar panel on the antenna can be reduced.

  Application Example 29 In the portable electronic device according to the application example described above, it is preferable that one end of the coil is connected to the solar panel and the other end is connected to the circuit board.

  According to this application example, the high-frequency component in the solar panel can be cut by a coil in which one end is connected to the solar panel and the other end is connected to the circuit board. The influence on can be reduced.

  [Application Example 30] In the portable electronic device according to the application example described above, the portable electronic device includes a non-conductive spacer disposed between the first conductor element and the second conductor element, It is preferable that the side facing the first conductor element and the side facing the second conductor element are substantially parallel.

  According to this application example, the first conductor element and the second conductor element are supported substantially in parallel by the nonconductive spacer disposed between the first conductor element and the second conductor element. be able to. Thereby, it is possible to reduce a decrease in antenna sensitivity and a variation in resonance frequency due to the inability to maintain the parallelism between the first conductor element and the second conductor element.

  Application Example 31 In the portable electronic device according to the application example described above, it is preferable that the spacer is made of a resin having a dielectric loss tangent smaller than that of the date wheel presser.

According to this application example, it is possible to reduce antenna reception loss due to the dielectric loss tangent of the spacer. Generally, a large dielectric loss tangent increases power loss, which is disadvantageous for the antenna. However, the spacer is made of a resin having a dielectric loss tangent smaller than that of the date wheel presser (for example, about 1 × 10 ⁻⁴ ). By doing so, it is possible to reduce the reception loss of the antenna.

  Application Example 32 In the portable electronic device according to the application example described above, it is preferable that the spacer and the date indicator presser are integrally formed of the resin.

According to this application example, the power loss due to the large dielectric loss tangent can be reduced by integrally configuring the spacer and the date wheel presser with a resin having a small dielectric loss tangent (for example, about 1 × 10 ⁻⁴ ). It is possible to reduce the reception loss of the antenna.

1 is an overall view of a GPS including an electronic timepiece as a portable electronic device of the present invention. 1 is a perspective view showing an outline of an electronic timepiece according to a first embodiment. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 1st Embodiment. The perspective view which shows the outline of the internal structure of the electronic timepiece which concerns on 1st Embodiment. The perspective view which shows the plate-shaped inverted F type antenna used for the electronic timepiece which concerns on 1st Embodiment. The figure equivalent to the P view of FIG. 5A which shows the modification of a plate-shaped inverted F type antenna. The perspective view which shows the modification of the plate-shaped inverted F type antenna used for the electronic timepiece which concerns on 1st Embodiment. FIG. 6B is a plan view of the plate-like inverted F-type antenna shown in FIG. 6A. The front view of FIG. 6B which shows a plate-shaped inverted F type antenna. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 2nd Embodiment. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 3rd Embodiment. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 4th Embodiment. The perspective view which shows the modification of the plate-shaped inverted F type antenna used for the electronic timepiece which concerns on 4th Embodiment. FIG. 10B is a plan view of the plate-like inverted F-type antenna shown in FIG. 10A. The front view of FIG. 10B which shows a plate-shaped inverted F type antenna. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 5th Embodiment. The fragmentary sectional view explaining the conduction | electrical_connection part of a solar panel and a circuit board. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 6th Embodiment. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 7th Embodiment. Sectional drawing which shows the internal structure of the electronic timepiece which concerns on 8th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, the size and scale of each part are appropriately different from the actual ones. Further, since the embodiments described below are preferred specific examples of the present invention, various technically preferable limitations are attached thereto. However, the scope of the present invention is particularly limited in the following description. Unless otherwise stated, the present invention is not limited to these forms.

<Embodiment>
With reference to FIG. 1, FIG. 2, FIG. 3, FIG. 4, FIG. 5A and FIG. FIG. 1 is an overall view of a GPS including an electronic timepiece as a portable electronic device of the present invention. FIG. 2 is a perspective view schematically showing the electronic timepiece according to the first embodiment. FIG. 3 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the first embodiment. FIG. 4 is a perspective view schematically showing the internal structure of the electronic timepiece according to the first embodiment. FIG. 5A is a perspective view showing a plate-like inverted F-type antenna used in the electronic timepiece according to the first embodiment. FIG. 5B is a diagram corresponding to the P view of FIG. 5A showing a modification of the plate-like inverted F-type antenna.

  An electronic timepiece W as a portable electronic device uses a watch function that receives radio waves (satellite signals) from GPS satellites 8 to correct the internal time, and uses GPS time information and orbit information to perform positioning calculation (position Information acquisition) function. Then, the electronic timepiece W displays time information, position information, and the like on the display unit 5 located on the side opposite to the surface in contact with the user's arm by the indicator hand 74 and the like. In the following description, the side of the electronic timepiece W that contacts the user's arm may be referred to as the back side, and the opposite side may be referred to as the front side. Further, the case of viewing from the front surface side along the direction from the back surface side to the front surface side may be referred to as “plan view”.

(First embodiment)
As shown in FIG. 1, the GPS satellite 8 is an example of a position information satellite that orbits a predetermined orbit in the sky above the earth. The GPS satellite 8 transmits a high-frequency radio wave on which a navigation message is superimposed, for example, a 1.57542 GHz radio wave (L1 wave) to the ground. In the following description, the 1.57542 GHz radio wave on which the navigation message is superimposed is referred to as a satellite signal. The satellite signal is a right-handed circularly polarized wave.

  Currently, there are a plurality of GPS satellites 8 (only four are shown in FIG. 1). In order to identify which GPS satellite 8 the satellite signal is transmitted from, each GPS satellite 8 superimposes a unique pattern of 1023 chips (1 ms period) called a C / A code (Coarse / Acquisition Code) on the satellite signal. . In the C / A code, each chip is either +1 or -1, and looks like a random pattern. Therefore, by correlating the satellite signal and the pattern of each C / A code, the C / A code superimposed on the satellite signal can be detected.

  The GPS satellite 8 is equipped with an atomic clock. The satellite signal includes extremely accurate GPS time information measured by an atomic clock. A slight time error of the atomic clock mounted on each GPS satellite 8 is measured by the control segment on the ground. The satellite signal also includes a time correction parameter for correcting the time error. The electronic timepiece W receives a satellite signal (radio wave) transmitted from one GPS satellite 8 and acquires time information using GPS time information and time correction parameters included therein. An operation mode in which this time information can be acquired is referred to as a “time measurement mode”, and the internal time (minutes and seconds) of the electronic timepiece W can be corrected using the earned time information.

  The satellite signal includes orbit information indicating the position of the GPS satellite 8 on the orbit. The electronic timepiece W can perform positioning calculation using GPS time information and orbit information. The positioning calculation is performed on the assumption that a certain amount of error is included in the internal time of the electronic timepiece W. That is, in addition to the x, y, and z parameters for specifying the three-dimensional position of the electronic timepiece W, the time error becomes an unknown. For this reason, the electronic watch W receives satellite signals (radio waves) transmitted from, for example, three or more GPS satellites 8, performs positioning calculation using GPS time information and orbit information included therein, and Get location information. The operation mode in which the position information can be acquired is referred to as “positioning mode”, the time difference is corrected based on the acquired position information, and the local time can be automatically displayed. Since the reception operation in positioning mode consumes more power than the reception operation in the timekeeping mode described above, the internal time correction operation (manual reception or automatic reception) in the use environment that does not require time difference correction is It is preferably executed in the timekeeping mode.

  As shown in FIG. 2, the electronic timepiece W is worn on a given part (for example, wrist) of the user, and displays the current time, user position information, movement information (physical quantity information), and the like. The electronic timepiece W is mounted on the device main body 10 that detects and displays the current time, the user's position information and movement information (physical quantity information), and the like, and is attached to the device main body 10. And band portions 35 and 36 for mounting to the user. The electronic timepiece W has a function of detecting and displaying biological information such as pulse wave information by, for example, a pulse wave sensor in addition to the current time, user position information, and movement information (physical quantity information). Also good.

  In the device main body 10, as a case 30, a bottom case 33 is disposed on the user mounting side, and a top case 32 is disposed on the side opposite to the user mounting side. The bottom case 33 and the top case 32 can be formed of, for example, a metal such as stainless steel or a resin, but is preferably formed of a metal. Since the bottom case 33 and the top case 32 are made of metal, it is possible to shield external disturbance noise that affects the measurement accuracy of various components housed in the bottom case 33 and the top case 32. it can. Moreover, it can give a sense of luxury and enhance fashionability. In addition, the top case 32 and the bottom case 33 may not be separated from each other, and may have an integral structure or a configuration in which a back cover is provided on the side attached to the user.

  As shown in FIG. 3, the top case 32 has a bottomed recess 31 that is located on the outer edge side of the top case 32 and opens toward the surface side. The recess 31 is provided in a ring shape along the outer edge of the top case 32. On the inner peripheral side of the concave portion 31, a protruding portion 39 that protrudes toward the surface side is provided upright. At least a part of the bezel 75 is inserted and fixed in the recess 31. The bezel 75 has a flange 75a that protrudes toward the glass plate 71 side. The bezel 75 can be formed of, for example, a material obtained by plating a surface of a stainless steel material or a brass (brass) material. A glass plate 71 that protects the internal structure 1 is provided inside the bezel 75. The glass plate 71 is connected to the inner peripheral surface of the protrusion 39 via a bonding member 78.

  The apparatus main body 10 includes a display unit 5 (see FIG. 2) including a dial plate 70 provided immediately below the glass plate 71, and the user can view the display on the display unit 5 through the glass plate 71. Yes. That is, in the electronic timepiece W of the present embodiment, various information such as detected position information, movement information (physical quantity information), or time information is displayed on the display unit 5, and the display is displayed from the top side of the device body 10 to the user. May be presented. The information displayed on the display unit 5 includes, for example, the information itself included in the satellite signal received by the receiving unit, the current time obtained by processing the received satellite signal, the current position, the moving distance, the speed, and the like. . In addition, a plurality of buttons 13 and 15 (see FIG. 2) for switching the display mode displayed on the display unit 5 and switching the start and stop of the hand movement of the indicator hand 74 are provided on the side surface of the device body 10. It has been.

  In addition, although the example which implement | achieves the top-plate part of the apparatus main body 10 with the glass plate 71 was shown here, it is a member which has the translucency which a user can browse the display part 5, and the top case 32 and the bottom case 33 of As long as the member has a strength that can protect the configuration of the display unit 5 and the like included in the inside, the top plate portion can be formed of a material other than glass, such as transparent plastic. In addition, although the configuration example in which the bezel 75 is provided is shown, a configuration in which the bezel 75 is not provided may be used. Moreover, you may arrange | position the solar panel not shown which has the electric power generation function by sunlight etc. on the surface of the bezel 75 or the surface of the dial 70, or a back surface.

  Further, as shown in FIG. 3, the electronic timepiece W includes a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, a dial plate 70, a top case 32, and a bottom case 33. It has the internal structure 1 accommodated in the internal space 34 to be configured. As shown in FIGS. 3 and 4, the internal structure 1 includes a plate-like inverted F-type antenna including a first conductor element 51 and a second conductor element 52, a circuit board 45, a circuit board holder 43, A ground plate 60, a first anti-magnetic plate 46, a second anti-magnetic plate 47, and a battery 48 as a power supply unit are provided. A date indicator 376 can be provided at the position shown in FIG. 4 between the first conductor element 51 and the first anti-magnetic plate 46, but the illustration and description are omitted in the configuration shown in FIG. . Further, the first conductor element 51 is provided with an opening 90 for visually recognizing a part of the date dial 376, and a position corresponding to the opening 90 of the first conductor element 51 of the dial 70 is A date window (not shown) is provided.

  The electronic timepiece W includes, as the internal structure 1, a step motor (motor) 58 as a driving element for driving an indicator hand 74 (including an hour hand, a minute hand, a second hand, etc.) of the display unit 5, and rotation of the step motor 58. And a power transmission mechanism including intermediate wheels (gears) 56 and 57 that transmit the power to a shaft 59 as a rotation shaft. In the electronic timepiece W, the rotation of the step motor 58 as a driving source is decelerated by the intermediate wheels (gears) 56, 57 and transmitted to the shaft 59, and the shaft 59 rotates, whereby the indicator hand 74 rotates. it can. A power transmission mechanism including a step motor 58, intermediate wheels (gears) 56 and 57, and a shaft 59 is fixed to the main plate 60.

  The configuration of the plate-like inverted F-type antenna will be described with reference to FIGS. 5A and 5B together. A plate-like inverted F-type antenna (PIFA (Plate Inverted F Antenna) or Planar Inverted F Antenna) functions as an antenna that receives high-frequency radio waves (satellite signals) including GPS time information and orbit information from GPS satellites 8. To do. The plate-like inverted F-type antenna is disposed opposite to a plate-like first conductor element (radiating plate) 51 connected to a feeding element 54 as a feeding portion so as to overlap the first conductor element 51 in plan view. And includes a plate-like second conductor element (ground plate) 52 including the grounding portion 55 and a short-circuit portion 53 that short-circuits the first conductor element 51 and the second conductor element 52. ing. In addition, the “plan view” can be rephrased as viewed from the glass plate 71 side in the direction in which the internal structure 1, the dial plate 70, and the glass plate 71 are arranged. The plate-like inverted F-type antenna has a structure in which the first conductor element 51 and the second conductor element 52 are short-circuited using the short-circuit portion 53 and the circuit board 45 is fed by the feed element 54 to obtain radio wave radiation. It has become. A through hole 51H is provided at a position where the first conductor element 51 overlaps the shaft 59 and the like constituting the power transmission mechanism in a plan view, and the shaft 59 is disposed in the through hole 51H. Thus, the shaft 59 can be inserted from the back surface side of the first conductor element 51 to the front surface side (the dial plate 70 side).

  Here, when the metal case 30 is used, the distance D between the outer edge of the first conductor element 51 and the inner wall of the case 30 is preferably 1 mm or more in plan view. According to such an arrangement, even the metal case 30 can reliably and efficiently receive GPS radio waves at the outer edge of the first conductor element 51. In the case of a resin case, the influence of GPS radio waves passing through the resin case and being absorbed by the wrist, which is a given wearing part of the user, is large, and the radiation efficiency is low (for example, about 45%). Become. On the other hand, since the GPS radio wave is reflected by the metal case by using the metal case 30, it is possible to suppress the influence of the wearing part and to increase the radiation efficiency (for example, 74%). The reception performance as a plate-like inverted F-type antenna can be improved.

  The first conductor element 51 and the second conductor element 52 constituting the plate-like inverted F-type antenna are preferably formed of a thin metal plate such as copper, copper alloy, aluminum, aluminum alloy, for example. Thus, by making the 1st conductor element 51 and the 2nd conductor element 52 into metal, thickness reduction is possible and shaping | molding can be performed easily. In addition, the 1st conductor element 51 and the 2nd conductor element 52 can use the nonelectroconductive thin plate as a base material, and can be set as the structure provided with the metal coating on the surface. The metal coating can be formed, for example, by plating with copper, silver, nickel, aluminum or the like. Moreover, it is good also as a structure which made either one metal among the 1st conductor elements 51 and the 2nd conductor elements 52, and gave the other to the base material with the metal film.

  The first conductor element 51 and the second conductor element 52 are connected by a plurality of short-circuit portions 53 provided on the outer edge portion. The short-circuit part 53 can be formed of the same material as the first conductor element 51 and the second conductor element 52. Note that the short-circuit portion 53 may be formed in a straight line so as to connect the first conductor element 51 and the second conductor element 52 vertically, or as shown in FIG. The portion 53p may be included. By providing such a bending portion 53p, the bending portion 53p can function as a buffer portion that buffers an impact received from the outside.

  Note that the short-circuit portion 53 may include a plurality of connection portions 531, 532, and 533 as shown in FIG. 5B. As described above, since the short-circuit portion 53 includes the plurality of connection portions 531, 532, and 533, the contact resistance of the short-circuit portion 53 can be reduced, so that the first conductor element 51 and the second conductor element 52 can be reduced. More current can flow.

  The first conductor element 51, the second conductor element 52, and the short-circuit portion 53 are preferably formed in a so-called integrated structure using, for example, a method of bending a metal thin plate by press working. If such a structure is applied, a plate-like inverted F-type antenna can be formed more efficiently.

  The ground portion 55 included in the second conductor element 52 is electrically connected to a ground terminal (ground terminal) 41 provided on the circuit board 45 via a connection terminal 61.

  The power feeding element 54 as a power feeding unit is disposed between the first conductor element 51 and the circuit board 45. The power feeding element 54 is connected to a power feeding terminal 42 provided on the circuit board 45 and has a function of supplying signals received by the first conductor element 51 and the second conductor element 52 to the circuit on the circuit board 45. Have.

  The circuit board 45 is disposed between the first conductor element 51 and the second conductor element 52, and various conductive wirings and conductive terminals are formed on the insulating substrate. Specifically, the circuit board 45 is provided with a ground terminal 41 and a power feeding terminal 42 as connection terminals for the plate-shaped inverted F antenna described above. The ground terminal 41 is connected to the ground portion 55 of the second conductor element 52, and the power supply terminal 42 is connected to the first conductor element 51 via the power supply element 54. The circuit board 45 includes circuits such as a receiving circuit that processes satellite signals received by the plate-like inverted F antenna and a control circuit that controls driving of a step motor 58 that constitutes a driving element that rotates and moves the indicator needle 74. It is out. The circuit board 45 is attached to the ground plane 60 by a circuit board retainer 43.

  The control circuit included in the circuit board 45 includes, for example, a digital signal processor (DSP), a central processing unit (CPU), a static random access memory (SRAM), and a crystal oscillation with a temperature compensation circuit (RTC). The circuit element 44 includes a circuit (TCXO: Temperature Compensated Crystal Oscillator) and a flash memory. A drive element such as the step motor 58 can be controlled by the circuit board 45 including such a control circuit.

  The ground plane 60 is made of a nonconductive material such as plastic, for example, and is disposed between the first conductor element 51 and the second conductor element 52. A power transmission mechanism including a step motor 58 as a driving element, intermediate wheels (gears) 56 and 57, a shaft 59, and the like is attached to the main plate 60. Here, as a resin used as a raw material of the plastic used for the main plate 60, for example, acrylic (PMMA), polycarbonate (PC), polypropylene (PP), polyvinyl chloride (PVC), acrylonitrile-butadiene-styrene copolymer (ABS) Examples thereof include thermoplastic resins such as resin), thermosetting resins such as phenol resin (PF), epoxy resin (EP), melamine resin (MF), polyurethane resin (PUR), and silicon resin (SI).

  The ground plane 60 is made of a non-conductive material, and is disposed between the first conductor element 51 and the second conductor element 52, so that the non-conductive ground plane 60 is regarded as a dielectric, and the ground plane 60 A wavelength shortening effect can be used. Thereby, the plate-shaped inverted F-type antenna constituted by the first conductor element 51, the second conductor element 52, the short-circuit portion 53, and the like can be reduced in size.

  The first magnetic resistant plate 46 and the second magnetic resistant plate 47 are used to protect the operation of the step motor 58 from an external magnetic field and are made of, for example, pure iron or ferritic stainless steel having a high magnetic permeability. The base plate 60 and the circuit board 45 are located between each other. By adopting such an arrangement, it is possible to reduce the influence of the magnetic field received from the outside on the ground plane 60 and the circuit board 45 arranged between the first and second magnetic resistant plates 46 and 47. The first and second magnetic shield plates 46 and 47 are disposed between the first conductor element 51 and the second conductor element 52.

  That is, in the internal structure 1 of the first embodiment, the first conductor element 51 and the second conductor element 52 include the first magnetic plate 46, the ground plate 60, the circuit board 45, and the second magnetic plate 47. Arranged in between. With such an arrangement, the first anti-magnetic plate 46, the ground plane 60, the circuit board 45, and the like, and the plate-like inverted F-type antenna including the first conductor element 51 and the second conductor element 52 are separately arranged. Compared with the case where it does, arrangement | positioning efficiency can be improved and the thickness of the internal structure 1 can be reduced.

  The battery 48 has terminals of both electrodes connected to the circuit board 45 by a connection board (not shown) or the like, and supplies power to a circuit that controls power. The power source is supplied to each circuit by being converted into a predetermined voltage by this circuit and operates each circuit and a control circuit for controlling each circuit. Although the primary battery is exemplified here as the battery 48, a rechargeable secondary battery may be used as the battery 48.

  According to the apparatus main body 10 (electronic timepiece W) according to the first embodiment including the internal structure 1 as described above, the non-conductive ground plane 60 is regarded as a dielectric and the wavelength shortening effect of the ground plane 60 is used. By doing so, the plate-like first conductor element 51 connected to the power feeding element 54 as the power feeding portion, the plate-like second conductor element 52 including the grounding portion 55, the first conductor element 51, The plate-like inverted F-type antenna constituted by the short-circuit portion 53 connecting the second conductor element 52 can be reduced in size. Thereby, the plate-like inverted F-type antenna can be accommodated in the case 30 of the electronic timepiece W as a small portable electronic device, and can function as a GPS antenna. If the plate-like inverted F-type antenna having such a configuration is accommodated in the case 30 (the bottom case 33 and the top case 32), a small electronic timepiece W can be realized.

  In addition, in the internal structure 1 which concerns on the above-mentioned 1st Embodiment, a plate-shaped inverted F type antenna can be set as the structure like the modification shown below. Hereinafter, a modified example of the plate-like inverted F-type antenna will be described with reference to FIGS. 6A, 6B, and 6C. FIG. 6A is a perspective view showing a modification of the plate-like inverted F-type antenna used in the electronic timepiece according to the first embodiment. 6B is a plan view of the plate-like inverted F-type antenna shown in FIG. 6A. FIG. 6C is a front view of FIG. 6B showing a plate-like inverted F-type antenna. In addition, the plate-shaped inverted F-type antenna of the modification is different from the configuration of the first embodiment described above in the configuration of the short-circuit portion. Since the first conductor element, the second conductor element, and the power feeding element as the power feeding unit, which are other configurations, have the same configuration as that of the first embodiment, the same reference numerals are given and description thereof is omitted.

  The plate-like inverted F-type antenna according to the modified example overlaps with the first conductor element 51 in a plan view with a plate-like first conductor element (radiating plate) 51 connected to a feeder element 54 as a feeder section. The plate-like second conductor element (ground plate) 52 including the grounding portion 55 and the plurality of rod-like short-circuits that short-circuit the first conductor element 51 and the second conductor element 52. Parts 53a, 53b, 53c, 53d, and 53e. In 1st Embodiment, although the 1st conductor element 51, the 2nd conductor element 52, and the short circuit part 53 were formed by the integral structure, in the modification, these are formed separately.

  The plurality of short-circuit portions 53 a, 53 b, 53 c, 53 d, and 53 e are arranged along the outer edge portion of the first conductor element 51 with an interval. In the arrangement of the plurality of short-circuit portions 53a, 53b, 53c, 53d, and 53e, the first virtual line Q1 connecting the short-circuit portion 53a located at one end and the center G of the first conductor element 51, and the other It is preferable that the angle θ formed by the second virtual line Q2 connecting the short-circuit portion 53e located at the end of the first conductor element 51 and the center G of the first conductor element 51 satisfies 0 ° <θ ≦ 170 °. . In addition, the other short circuit parts 53b, 53c, and 53d are arrange | positioned between the short circuit part 53a located in one end, and the short circuit part 53e located in the other end.

  Thus, by providing the plurality of short-circuit portions 53a, 53b, 53c, 53d, and 53e, the resistance of the plate-like inverted F-type antenna can be reduced, and the loss of the plate-like inverted F-type antenna itself can be reduced. In the configuration in which the first magnetic shield plate 46, the ground plane 60, the circuit board 45, and the second magnetic shield plate 47 are arranged between the first conductor element 51 and the second conductor element 52, By arranging the short-circuit portions 53a, 53b, 53c, 53d, and 53e as described above, it is possible to increase the resonance frequency of the plate-like inverted F-type antenna so that it can resonate with the frequency of the received satellite radio wave. Accordingly, the plate-like inverted F-type antenna shown in this modification can be a small antenna with improved reception performance.

(Second Embodiment)
Next, the configuration of the electronic timepiece according to the second embodiment of the portable electronic device of the present invention will be described with reference to FIG. FIG. 7 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the second embodiment. The device main body 100 of the electronic timepiece according to the second embodiment shown in FIG. 7 differs from the device main body 10 of the first embodiment described above in the arrangement positions of the components. In the following description, the arrangement configuration different from that of the above-described first embodiment will be mainly described, and the same reference numerals will be given to similar configurations and configurations, and the description thereof will be omitted.

  As shown in FIG. 7, the device main body 100 according to the second embodiment includes, as an internal structure, a step motor (motor) 158 as a driving element that drives an indicator hand 174 (including an hour hand, a minute hand, a second hand, and the like). And a power transmission mechanism including intermediate wheels (gears) 156 and 157 for transmitting the rotation of the step motor 158 to the shaft 159. Further, the device main body 100 is provided in an internal space 34 constituted by a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. It has a contained internal structure. The internal structure includes a plate-like first conductor element 151 connected to the power feeding element 154 and a plate-like second conductor element 152 including a ground portion 155, and the first conductor element 151 and the second conductor element. A plate-like inverted F-type antenna including a short-circuit portion 153 that short-circuits 152, a circuit board 145, a circuit board presser 143, a ground plane 160, a first magnetic-resistant plate 146, a second magnetic-resistant plate 147, and a battery 48. Yes. As an internal structure, a plate-like inverted F-type antenna including the first conductor element 151 and the second conductor element 152, a circuit board 145, a circuit board holder 143, a ground plane 160, a first magnetic plate 146, a first Since the configurations of the second anti-magnetic plate 147 and the battery 48 are the same as those in the first embodiment, the description thereof will be omitted.

  In the apparatus main body 100, the first conductor element 151, the ground plane 160, the circuit board 145, the circuit board presser 143, and the second conductor element 152 are between the first magnetic shield plate 146 and the second magnetic shield plate 147. Is arranged. That is, in the internal structure of the apparatus main body 100 of the second embodiment, the ground plane 160, the circuit board 145, and the circuit board presser 143 are arranged between the first conductor element 151 and the second conductor element 152, The first magnetic shield plate 146 is located on the dial plate 70 side of the first conductor element 151, and the second magnetic shield plate 147 is located on the bottom case 33 side of the second conductor element 152. The first conductor element 151 is connected to the circuit board 145 by the power feeding element 154. Further, the second conductor element 152 is connected to the circuit board 145 by the connection terminal 61.

  According to the configuration of the internal structure of the device main body 100 according to the second embodiment, the same effects as those of the first embodiment can be obtained. Further, by arranging the first conductor element 151, the ground plane 160, the circuit board 145, and the second conductor element 152 between the first anti-magnetic plate 146 and the second anti-magnetic plate 147, the electric current is increased. It is possible to reduce a current loss caused by flowing to the first anti-magnetic plate 146 and the second anti-magnetic plate 147.

(Third embodiment)
Next, the configuration of the electronic timepiece according to the third embodiment of the portable electronic device of the present invention will be described with reference to FIG. FIG. 8 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the third embodiment. The device main body 200 of the electronic timepiece according to the third embodiment shown in FIG. 8 differs from the device main body 10 of the first embodiment described above in the arrangement positions of the components. In the following description, the arrangement configuration different from that of the above-described first embodiment will be mainly described, and the same reference numerals will be given to similar configurations and configurations, and the description thereof will be omitted.

  As shown in FIG. 8, the device main body 200 according to the third embodiment includes, as an internal structure, a step motor (motor) 258 as a driving element that drives an indicator hand 274 (including an hour hand, a minute hand, a second hand, and the like). And a power transmission mechanism including intermediate wheels (gears) 256 and 257 for transmitting the rotation of the step motor 258 to the shaft 259. Further, the device main body 200 is provided in an internal space 34 constituted by a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. It has a contained internal structure. The internal structure includes a plate-like first conductor element 251 connected to the power feeding element 254 and a plate-like second conductor element 252 including the ground portion 255, the first conductor element 251, and the second conductor element 252. A plate-like inverted F-type antenna including a short-circuit portion 253, a circuit board 245, a circuit board presser 243, a ground plane 260, a first magnetic plate 246, a second magnetic plate 247, and a battery 48. . As an internal structure, a plate-like inverted F-type antenna including the first conductor element 251 and the second conductor element 252, the circuit board 245, the circuit board holder 243, the ground plane 260, the first antimagnetic plate 246, Since the configurations of the second magnetic-resistant plate 247 and the battery 48 are the same as those in the first embodiment, the description thereof will be omitted.

  In the apparatus main body 200, the first conductor element 251 is disposed between the first magnetic plate 246 and the ground plane 260, and the second conductor element 252 is disposed between the ground plane 260 and the circuit board 245. Yes. The circuit board 245 is disposed between the second magnetically resistant plate 247 and the second conductor element 252. In other words, the ground plate 260, the first conductor element 251 and the second conductor element 252, and the circuit board 245 are arranged between the first and second antimagnetic plates 246 and 247. In this embodiment, the circuit board retainer 243 is disposed on the bottom case 33 side of the second magnetically resistant plate 247.

  According to the configuration of the internal structure of the device main body 200 according to the third embodiment, the same effects as those of the first embodiment can be obtained. In addition, the first and second conductive elements 251 and 252 with the ground plate 260 disposed therebetween and the circuit board 245 are disposed between the first and second magnetic resistant plates 246 and 247. As a result, it is possible to reduce current loss due to the current flowing through the first and second magnetic plates 246 and 247.

(Fourth embodiment)
Next, the structure of the electronic timepiece according to the fourth embodiment of the portable electronic device of the invention will be described with reference to FIG. FIG. 9 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the fourth embodiment. The device main body 300 of the electronic timepiece according to the fourth embodiment shown in FIG. 9 is different from the device main body 10 of the first embodiment in the arrangement positions of the components. In the following description, the arrangement configuration different from that of the above-described first embodiment will be mainly described, and the same reference numerals will be given to similar configurations and configurations, and the description thereof will be omitted.

  As shown in FIG. 9, the device main body 300 according to the fourth embodiment includes, as an internal structure, a step motor (motor) 358 as a drive element that drives an indicator hand 374 (including an hour hand, a minute hand, a second hand, etc.) And a power transmission mechanism including intermediate wheels (gears) 356 and 357 for transmitting the rotation of the step motor 358 to the shaft 359. Further, the device main body 300 is provided in an internal space 34 constituted by a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. And a contained internal structure. The internal structure includes a plate-like first conductor element 351 connected to the power feeding element 354, a plate-like second conductor element 352 including a ground portion 355, a first conductor element 351, and a second conductor element 352. A short-circuit portion 353, a plate-like inverted F-type antenna, a circuit board 345, a circuit board retainer 343, a ground plane 360, a date indicator 376 connected to the ground plane 360, a date indicator retainer 377, and a battery 48. The configuration of the plate-like inverted F-type antenna including the first conductor element 351 and the second conductor element 352, the circuit board 345, the circuit board holder 343, the ground plane 360, and the battery 48 as the internal structure is as follows. Since it is the same as that of 1st Embodiment, the description below is abbreviate | omitted.

  In the device main body 300, a first conductor element 351 and a second conductor element 352 facing the first conductor element 351 are disposed between the dial 70 and the ground plate 360. Between the first conductor element 351 and the second conductor element 352, a date indicator 376 and a date indicator holder 377 made of a non-conductive material are disposed. Further, on the opposite side of the second conductor element 352 from the first conductor element 351 side, a ground plate 360 disposed so as to overlap the second conductor element 352, and a driving element connected to the ground plate 360 A power transmission mechanism including a step motor 358, intermediate wheels (gears) 356 and 357, and a shaft 359, a circuit board 345, and a movement 362 including a circuit board presser 343 are disposed.

  In other words, the device main body 300 is a plate-like reverse including a first conductor element 351 and a second conductor element 352 having a date indicator 376 and a date indicator presser 377 made of a non-conductive material interposed therebetween. A power transmission mechanism including an F-type antenna, a ground plane 360, a step motor 358 as a driving element connected to the ground plane 360, intermediate wheels (gears) 356 and 357, and a shaft 359, a circuit board 345, and a circuit board presser 343 A movement 362 including the above is arranged so as to overlap in plan view. In addition, it is good also as a structure which has arrange | positioned the 1st magnetic-resistant board and 2nd magnetic-resistant board which are not shown in figure.

  The date indicator 376 and date indicator presser 377 made of a non-conductive material are, for example, acrylic (PMMA), polycarbonate (PC), polypropylene (PP), polyvinyl chloride (PVC), acrylonitrile- Thermosetting resin such as butadiene-styrene copolymer (ABS resin) or phenolic resin (PF), epoxy resin (EP), melamine resin (MF), polyurethane resin (PUR), silicone resin (SI) Examples of the functional resin can be given.

  According to the device main body 300 of the fourth embodiment, the non-conductive date dial 376 and date dial presser 377 are regarded as dielectrics, and the wavelength shortening effect by the date dial 376 and date dial presser 377 is used. And including a plate-like first conductor element 351, a plate-like second conductor element 352, and a short-circuit portion 353 connecting the first conductor element 351 and the second conductor element 352. The plate-like inverted F-type antenna can be reduced in size. In addition, since the movement 362 is arranged on the opposite side of the second conductor element 352 from the first conductor element 351 side so as to overlap the second conductor element 352, the arrangement efficiency can be increased. Accordingly, the plate-like inverted F-type antenna and the movement 362 can be accommodated in the case of a small portable electronic device (for example, a wristwatch).

  In addition, in the internal structure which concerns on the above-mentioned 4th Embodiment, a plate-shaped inverted F type antenna can be set as the structure as a modification shown below. Hereinafter, a modified example of the plate-like inverted F-type antenna will be described with reference to FIGS. 10A, 10B, and 10C. FIG. 10A is a perspective view showing a modified example of the plate-like inverted F-type antenna used in the electronic timepiece according to the fourth embodiment. FIG. 10B is a plan view of the plate-like inverted F-type antenna shown in FIG. 10A. FIG. 10C is a front view of FIG. 10B showing a plate-like inverted F-type antenna. Note that the modified plate-like inverted F-type antenna is different in configuration from the short-circuit portion 353 of the above-described fourth embodiment. The first conductor element 351, the second conductor element 352, and the power supply element 354 as the power supply unit, which are other configurations, have the same configuration as that of the fourth embodiment, and thus the same reference numerals are given and description thereof is omitted. To do.

  The plate-like inverted F-type antenna of the modified example includes a plate-like first conductor element (radiation plate) 351 including a feeding element 354 and an opening 390 as a feeding part, and the first conductor element 351 in a plan view. A plurality of short-circuit portions that are disposed so as to overlap and short-circuit the plate-like second conductor element (ground plate) 352 including the ground portion 355 and the first conductor element 351 and the second conductor element 352. 353a, 353b, and 353c. Here, the first conductor element 351 and the second conductor element 352 constituting the plate-like inverted F-type antenna of the modified example have a date indicator 376 and a date indicator presser 377 made of a non-conductive material in between. (Refer to FIG. 9).

  The plurality of short-circuit portions 353 a, 353 b, and 353 c are disposed along the outer edge portion of the first conductor element 351 with an interval therebetween. In such an arrangement of the plurality of short-circuit portions 353a, 353b, 353c, the first virtual line Q3 connecting the short-circuit portion 353a located at one end and the center G of the first conductor element 351, and the other end It is preferable that the angle θ formed by the second virtual line Q4 connecting the short-circuit portion 353c and the center G of the first conductor element 351 satisfy 0 ° <θ ≦ 90 °. In addition, the other short circuit part 353b is arrange | positioned between the short circuit part 353a located in one end, and the short circuit part 353c located in the other end.

  Thus, by providing the plurality of short-circuit portions 353a, 353b, and 353c, the resistance of the plate-like inverted F-type antenna can be reduced, and the loss of the plate-like inverted F-type antenna itself can be reduced. Further, in the configuration in which the date indicator 376 and date indicator presser 377 made of a non-conductive material are disposed between the first conductor element 351 and the second conductor element 352, a short circuit as described above. By arranging the portions 353a, 353b, and 353c, the resonance frequency of the plate-like inverted F-type antenna can be increased so that it can resonate with the frequency of the received satellite radio wave. Accordingly, the plate-like inverted F-type antenna shown in this modification can be an antenna with improved reception performance.

(Fifth embodiment)
Next, the structure of the electronic timepiece according to the fifth embodiment of the portable electronic device of the invention will be described with reference to FIG. FIG. 11 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the fifth embodiment. The device main body 10a of the electronic timepiece according to the fifth embodiment shown in FIG. 11 is different from the device main body 10 of the first embodiment described above in the configuration related to the dial 70. In the following description, the arrangement configuration different from that of the above-described first embodiment will be mainly described, and the same reference numerals will be given to similar configurations and configurations, and the description thereof will be omitted.

  As shown in FIG. 11, a device main body 10a according to the fifth embodiment includes a step motor (motor) 58 as a driving element for driving an indicator hand 74 (including hour hand, minute hand, second hand, etc.) as an internal structure. And a power transmission mechanism including intermediate wheels (gears) 56 and 57 for transmitting the rotation of the step motor 58 to the shaft 59. Further, the device main body 10 a is provided in an internal space 34 constituted by a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. It has a contained internal structure. The internal structure includes a plate-like inverted F-type antenna including a first conductor element 51 and a second conductor element 52 and a short-circuit portion 53 that short-circuits the first conductor element 51 and the second conductor element 52, and a circuit board 45. A circuit board holder 43, a ground plane 60, a first magnetic resistant plate 46, a second magnetic resistant plate 47, and a battery 48. In addition, a plate-like inverted F-type antenna including the first conductor element 51 and the second conductor element 52 as an internal structure, a circuit board 45, a circuit board holder 43, a first antimagnetic plate 46, and a second antimagnetic element Since the structure of the board 47, the ground plane 60, and the battery 48 is the same as that of 1st Embodiment, description below is abbreviate | omitted.

  In the device main body 10a according to the fifth embodiment, a solar panel 73 having a power generation function using sunlight or the like is disposed between the dial plate 70 and the first conductor element 51 so as to overlap the first conductor element 51. doing. Therefore, in order to irradiate the solar panel 73 with sunlight transmitted through the glass plate 71, a through hole 70 a through which sunlight passes is provided at a position facing the solar panel 73 of the dial 70. Note that the dial plate 70 can also be configured using a so-called light-transmitting material that transmits sunlight. If the dial plate 70 has such a configuration, the through-hole 70a is not necessarily provided. There is no. In addition, it is preferable that at least a part of the first conductor element 51 is outside the outer edge of the solar panel 73 in a plan view as viewed from the glass plate 71 side. In other words, the size of the first conductor element 51 is preferably equal to or greater than the size (size) of the solar panel 73.

  According to the apparatus main body 10a according to the fifth embodiment, the dial plate 70 disposed on the opposite side of the first conductor element 51 from the second conductor element 52 side so as to overlap the first conductor element 51. The solar panel 73 disposed between the dial 70 and the first conductor element 51 and receiving light incident from the dial 70 side to generate electric power can be configured with high efficiency.

  In addition, by setting the size of the first conductor element 51 to be equal to or larger than the size (size) of the solar panel 73, radio waves can be received without being affected by the solar panel 73. In addition, a support substrate (not shown) made of metal or metal may be provided as a support portion for supporting the solar panel 73, and the support substrate may also be used as the first conductor element 51. In this case, the antenna can be downsized as compared with the case where the dual use is not performed.

  Further, as shown in the partial cross-sectional view for explaining the conduction part between the solar panel 73 and the circuit board 45 in FIG. 12, the electric power generated by the solar panel 73 is transmitted by the conduction part 77 arranged along the short-circuit part 53. It is preferably input to the circuit board 45. The metal portion (transparent electrode or metal electrode) included in the solar panel 73 may affect the characteristics of the antenna. Thus, by arranging the conducting portion 77 along the short-circuit portion 53, solar power can be obtained. The influence of the panel 73 on the antenna (the first conductor element 51 and the second conductor element 52) can be reduced.

  Moreover, it is preferable that the conduction part 77 includes a coil (not shown) having one end connected to the solar panel 73 and the other end connected to the circuit board 45. In this way, a high-frequency component in the solar panel 73 can be cut by a coil (not shown) having one end connected to the solar panel 73 and the other end connected to the circuit board 45. The influence of the panel 73 on the antenna (the first conductor element 51 and the second conductor element 52) can be reduced.

(Sixth embodiment)
Next, the configuration of an electronic timepiece according to a sixth embodiment of the portable electronic device of the invention will be described with reference to FIG. FIG. 13 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the sixth embodiment. The device main body 400 of the electronic timepiece according to the sixth embodiment shown in FIG. 13 differs from the device main body 300 of the fourth embodiment described above in the arrangement positions of the components. In the following description, the configuration different from the above-described fourth embodiment will be mainly described, and the same reference numerals will be given to the same configuration and configuration, and the description thereof will be omitted.

  As shown in FIG. 13, the device main body 400 according to the sixth embodiment includes, as an internal structure, a step motor (motor) 358 as a drive element that drives an indicator hand 374 (including an hour hand, a minute hand, a second hand, and the like). And a power transmission mechanism including intermediate wheels (gears) 356 and 357 for transmitting the rotation of the step motor 358 to the shaft 359. Further, the device main body 300 is provided in an internal space 34 constituted by a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. And a contained internal structure. The internal structure is arranged on the surface side of the plate-like inverted F-type antenna connected to the power feeding element 354, the circuit board 345, the circuit board presser 343, the ground plane 360, and the second conductor element 352. A date dial 376, a date dial presser 377, a non-conductive spacer 378 disposed between the first conductor element 351 and the second conductor element 352, and a battery 48 are provided. The configuration of the plate-like inverted F-type antenna including the first conductor element 351 and the second conductor element 352, the circuit board 345, the circuit board holder 343, the ground plane 360, and the battery 48 as the internal structure is as follows. Since it is the same as that of 4 embodiment, the description below is abbreviate | omitted. In addition, it is good also as a structure which has arrange | positioned the 1st magnetic-resistant board and 2nd magnetic-resistant board which are not shown in figure.

  In the device main body 400, a first conductor element 351 and a second conductor element 352 facing the first conductor element 351 are disposed between the dial 70 and the ground plate 360. Between the first conductor element 351 and the second conductor element 352, a date indicator 376, a date indicator holder 377, and a spacer 378 made of a non-conductive material are disposed. The date dial holder 377 is disposed closer to the center of the first conductor element 351 than the date dial 376, and holds the date dial 376 slidable from the surface. In addition, a through hole is provided in the center portion of the date dial holder 377 and the shaft 359 is inserted therethrough.

  The spacer 378 is disposed on the outer peripheral side of the date dial holder 377 between the first conductor element 351 and the second conductor element 352, and a step portion is provided at a position facing the date dial 376. The spacer 378 is configured such that the side facing the first conductor element 351 and the side facing the second conductor element 352 are substantially parallel. By such a spacer 378, the parallelism between the first conductor element 351 and the second conductor element 352 can be maintained. The spacer 378 is made of a nonconductive material.

The spacer 378 is preferably made of a resin having a dielectric loss tangent smaller than that of the date dial presser 377. Thus, by making the dielectric loss tangent of the spacer 378 smaller than the date indicator presser 377, the loss of the plate-like inverted F-type antenna due to the dielectric loss tangent of the spacer 378 can be reduced. In general, when the dielectric loss tangent is large, power loss increases, which is disadvantageous for the plate-shaped inverted F-type antenna. However, the material of the spacer 378 is smaller than that of the date dial holder 377 (for example, 1 × with 10 about ^-4) resin, it is possible to reduce the loss of the planar inverted F-type antenna.

  The date indicator 376, date indicator presser 377, and spacer 378 made of a non-conductive material are, for example, acrylic (PMMA), polycarbonate (PC), polypropylene (PP), polyvinyl chloride (PVC). ), Acrylonitrile-butadiene-styrene copolymer (ABS resin) or other thermoplastic resin, or phenol resin (PF), epoxy resin (EP), melamine resin (MF), polyurethane resin (PUR), silicone resin (SI) The thermosetting resin such as can be exemplified.

  Further, on the opposite side of the second conductor element 352 from the first conductor element 351 side, a ground plate 360 disposed so as to overlap the second conductor element 352, and a driving element connected to the ground plate 360 A power transmission mechanism including a step motor 358, intermediate wheels (gears) 356 and 357, and a shaft 359, a circuit board 345, and a movement 362 including a circuit board presser 343 are disposed.

  According to the apparatus main body 400 of the sixth embodiment, the date wheel 376, the date wheel presser 377, and the spacer 378 are regarded as the non-conductive date dial 376, the date dial presser 377, and the spacer 378 as dielectrics. By using the wavelength shortening effect of the first conductive element 351, the second conductive element 352, the second conductive element 352, the first conductive element 351, and the second conductive element 352 are connected. The plate-like inverted F-type antenna including the short-circuit portion 353 can be reduced in size. In addition, the first conductor element 351 and the second conductor element 352 are supported substantially in parallel by a non-conductive spacer 378 disposed between the first conductor element 351 and the second conductor element 352. be able to. As a result, it is possible to reduce a decrease in antenna sensitivity and a variation in resonance frequency due to the inability to maintain the parallelism between the first conductor element 351 and the second conductor element 352.

(Seventh embodiment)
Next, a configuration of an electronic timepiece according to a seventh embodiment of the portable electronic device of the invention will be described with reference to FIG. FIG. 14 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the seventh embodiment. An electronic timepiece device main body 500 according to the seventh embodiment shown in FIG. 14 differs from the device main body 400 of the sixth embodiment described above in the configuration of the date dial holder 377 and the spacer 378. In the following description, the date indicator presser 377 and the spacer 378 different from those of the above-described sixth embodiment will be mainly described, and the same reference numerals will be given to the same forms and configurations, and the description thereof will be omitted.

  The device main body 500 according to the seventh embodiment includes a dial plate 70, a parting plate 72 provided between the dial plate 70 and the glass plate 71, the dial plate 70, the top case 32, and the bottom case 33. Since the internal structure housed in the internal space 34 is the same as that of the device main body 400 of the above-described sixth embodiment except for the configuration of the date dial holder 377 and the spacer 378, the description thereof is omitted. In addition, it is good also as a structure which has arrange | positioned the 1st magnetic-resistant board and 2nd magnetic-resistant board which are not shown in figure.

As shown in FIG. 14, the spacer 577 constituting the internal structure of the seventh embodiment is such that the date indicator presser 377 and the spacer 378 of the sixth embodiment shown in FIG. And a small piece of resin (for example, about 1 × 10 ⁻⁴ ). The spacer 577 is disposed between the first conductor element 351 and the second conductor element 352, is located closer to the center than the date indicator 376, and holds the date indicator 376 slidably from the surface side; The first conductor element 351 and the second conductor element 352 have portions that hold the outer peripheral portions substantially parallel to each other. The spacer 577 is provided with a stepped portion at a position facing the date dial 376. Further, a through hole is provided in the central portion of the spacer 577, and the shaft 359 is inserted therethrough.

According to this application example, the plate-like inverted F-type antenna can be reduced in size by the spacer 577 in which the spacer and the date indicator presser are integrally formed of a resin having a small dielectric loss tangent (for example, about 1 × 10 ⁻⁴ ). Can do. Further, since the dielectric loss tangent of the spacer 577 is small, power loss due to the large dielectric loss tangent can be reduced, the loss of the antenna can be reduced, and the spacer and the date indicator presser are made into one component. Therefore, the number of parts can be reduced.

(Eighth embodiment)
Next, the configuration of an electronic timepiece according to an eighth embodiment of the portable electronic device of the invention will be described with reference to FIG. FIG. 15 is a cross-sectional view showing the internal configuration of the electronic timepiece according to the eighth embodiment. The device body 600 of the electronic timepiece according to the eighth embodiment shown in FIG. 15 is different from the device body 400 of the above-described sixth embodiment in the configuration of the case 30, and a solar panel 373 is additionally provided. In the following description, the configuration different from that of the above-described sixth embodiment will be mainly described, and the same reference numerals will be given to similar configurations and configurations, and the description thereof will be omitted. In addition, it is good also as a structure which has arrange | positioned the 1st magnetic-resistant board and 2nd magnetic-resistant board which are not shown in figure.

  As shown in FIG. 15, the device main body 600 according to the eighth embodiment includes a case 633 that constitutes an exterior case 630, a bezel 632, a translucent glass plate 671, and a back cover 634. . The outer case 630 is configured by fitting a bezel 632 made of ceramic to a cylindrical case 633 made of metal such as stainless steel. On the inner peripheral side of the bezel 632, a disk-shaped dial plate 70 having translucency is disposed.

  Of the two openings of the case 633, the apparatus main body 600 has an opening on the front side closed by a glass plate 671 through a bezel 632, and an opening on the back side closed by a back cover 634 formed of metal. It is peeling off. A solar panel 373 is disposed directly under the translucent dial plate 70, in other words, between the dial plate 70 and the first conductor element 351 of the plate-like inverted F-type antenna constituting the internal structure. Yes. The solar panel 373 can generate power with light such as sunlight that has passed through the translucent glass plate 671 and the translucent dial 70. In the internal space 34 on the back cover 634 side of the solar panel 373, an internal structure similar to that in the above-described sixth embodiment is provided.

  As shown in FIG. 15, the device main body 600 according to the eighth embodiment includes, as an internal structure, a step motor (motor) 358 as a driving element that drives an indicator hand 374 (including an hour hand, a minute hand, a second hand, etc.) And a power transmission mechanism including intermediate wheels (gears) 356 and 357 for transmitting the rotation of the step motor 358 to the shaft 359. Further, the device main body 800 is housed in an internal space 34 constituted by the dial plate 70, the parting plate 72 provided between the dial plate 70 and the glass plate 671, the dial plate 70, and the exterior case 630. And a structure. The internal structure is arranged on the surface side of the plate-like inverted F-type antenna connected to the power feeding element 354, the circuit board 345, the circuit board presser 343, the ground plane 360, and the second conductor element 352. A date dial 376, a date dial presser 377, a non-conductive spacer 378 disposed between the first conductor element 351 and the second conductor element 352, and a battery 48 are provided. As an internal structure, an internal structure including a plate-like inverted F-type antenna including a first conductor element 351 and a second conductor element 352, a circuit board 345, a circuit board holder 343, a ground plane 360, and a battery 48. Since the configuration is the same as that of the sixth embodiment, detailed description thereof is omitted.

  Further, on the opposite side of the second conductor element 352 from the first conductor element 351 side, a ground plate 360 disposed so as to overlap the second conductor element 352, and a driving element connected to the ground plate 360 A power transmission mechanism including a step motor 358, intermediate wheels (gears) 356 and 357, and a shaft 359, a circuit board 345, and a movement 362 including a circuit board presser 343 are disposed.

  According to the device main body 600 of the eighth embodiment, the nonconductive material is disposed inside the outer case 630 that includes the case 633, the bezel 632, the glass plate 671, and the back cover 634. By using the date indicator 376, the date indicator holder 377, and the spacer 378 as dielectrics and utilizing the wavelength shortening effect of the date indicator 376, date indicator holder 377, and spacer 378, the plate-like first conductor element 351 is used. And a plate-like inverted F-type antenna that includes a plate-like second conductor element 352 and a short-circuit portion 353 that connects the first conductor element 351 and the second conductor element 352 to each other. Can be In addition, the first conductor element 351 and the second conductor element 352 are supported substantially in parallel by a non-conductive spacer 378 disposed between the first conductor element 351 and the second conductor element 352. be able to. As a result, it is possible to reduce a decrease in antenna sensitivity and a variation in resonance frequency due to the inability to maintain the parallelism between the first conductor element 351 and the second conductor element 352.

  In addition, in the apparatus main bodies 10, 10a, 100, 200, 300, 400, 500, 600 of the above-described embodiments, the first magnetic plate 46, 146, 246 is replaced with the first conductor elements 51, 151, 251. A common configuration can be adopted. Similarly, the second magnetically resistant plates 47, 147, 247 can be configured in common with the second conductor elements 52, 152, 252. With such a configuration, a thinner internal structure can be obtained. Further, the second magnetically resistant plates 47, 147, 247 may be disposed between the ground plates 60, 160, 260, 360 and the circuit boards 45, 145, 245, 345.

  Further, in each of the above-described embodiments, the display unit 5 has been described as an analog display type configuration using the dial plate 70, the indicating hand 74, and the like, but is not limited thereto. For example, even in a digital display configuration that uses a liquid crystal display (LCD) or the like as the display unit 5, for example, a configuration of an internal structure including a plate-like inverted F-type antenna similar to the above-described embodiments. Can be applied.

  In the above description, the GPS using the GPS satellite 8 as the position information satellite provided in the global navigation satellite system (GNSS) is described as an example, but this is only an example. The global navigation satellite system includes other systems such as Galileo (EU), GLONASS (Russia), Hokuto (China), and position information satellites that transmit satellite signals such as geostationary satellites such as SBAS and quasi-zenith satellites. Anything is acceptable. That is, the electronic timepiece W acquires any one of date information, time information, position information, and speed information obtained by processing radio waves (radio signals) from position information satellites including satellites other than the GPS satellite 8. It may be configured to. The global navigation satellite system may be a regional navigation satellite system (RNSS). In this case, the above-described antenna structure can be an antenna corresponding to various regional navigation satellite systems (RNSS).

  DESCRIPTION OF SYMBOLS 1 ... Internal structure, 5 ... Display part, 8 ... GPS satellite 10, 10, 10a, 100, 200, 300, 400, 500, 600 ... Main part of a device, 13, 15 ... Button, 30 ... Case, 31 ... Recessed part, 32 ... Top case, 33 ... Bottom case, 34 ... Internal space, 35, 36 ... Band part, 39 ... Projection part, 41 ... Ground terminal (ground terminal), 42 ... Feed terminal, 43 ... Circuit board holder, 44 ... Circuit element 45 ... Circuit board 46 ... first magnetic plate 47 ... second magnetic plate 48 ... battery 51 ... first conductor element 52 ... second conductor element 53 ... short circuit part 53p ... curved , 54 ... Power feeding element as power feeding part, 55 ... Grounding part, 56, 57 ... Intermediate wheel (gear), 58 ... Step motor, 59 ... Shaft as rotating shaft, 60 ... Ground plate, 70 ... Dial, 71 ... Glass plate, 72 ... Parting plate, 73 ... So Lara panel, 74 ... indicator needle, 75 ... bezel, 75a ... collar, 78 ... joining member, 90 ... opening, 362 ... movement, 376 ... date indicator, 377 ... date indicator press, D ... distance, Q1, Q3 ... first 1 imaginary line, Q2, Q4, second imaginary line, θ, angle.

Claims (32)

A plate-like first conductor element connected to the power supply unit;
A planar second conductor element that is arranged to overlap the first conductor element in a plan view and includes a grounding portion;
A short-circuit portion connecting the first conductor element and the second conductor element;
A non-conductive ground plane disposed between the first conductor element and the second conductor element to which a driving element is attached;
including,
Portable electronic device. In claim 1,
Including a circuit board on which a circuit for controlling at least the driving element is configured;
Portable electronic device. In claim 2,
The ground plane and the circuit board are disposed between the first conductor element and the second conductor element,
Portable electronic device. In claim 2 or claim 3,
Including a first anti-magnetic plate and a second anti-magnetic plate,
The ground plane and the circuit board are disposed between the first anti-magnetic plate and the second anti-magnetic plate,
Portable electronic device. In claim 4,
The first anti-magnetic plate, the ground plate, the circuit board, and the second anti-magnetic plate are disposed between the first conductor element and the second conductor element.
Portable electronic device. In claim 2,
The second conductor element is disposed between the ground plane and the circuit board.
Portable electronic device. In claim 6,
Including a first anti-magnetic plate and a second anti-magnetic plate,
The first conductive element, the ground plane, the second conductive element, and the circuit board are disposed between the first magnetic resistant plate and the second magnetic resistant plate,
Portable electronic device. In any one of Claims 2 thru | or 7,
The drive element includes a motor and a gear.
Portable electronic device. A plate-like first conductor element connected to the power supply unit;
A planar second conductor element that is arranged to overlap the first conductor element in a plan view and includes a grounding portion;
A short-circuit portion connecting the first conductor element and the second conductor element;
A non-conductive date indicator and a non-conductive date indicator press disposed between the first conductive element and the second conductive element;
A movement disposed on the opposite side of the second conductor element from the first conductor element side so as to overlap the second conductor element;
including,
Portable electronic device. In claim 9,
Including circuit boards,
The movement is disposed between the second conductor element and the circuit board;
Portable electronic device. In any one of Claims 2 thru | or 10,
The power feeding portion of the first conductor element is connected to a power feeding terminal of the circuit board,
The ground portion of the second conductor element is connected to a ground terminal of the circuit board;
Portable electronic device. In any one of Claims 1 thru | or 11,
The first conductor element and the second conductor element are at least one of a metal configuration and a metal coating,
Portable electronic device. In any one of Claims 1 thru | or 12,
The first conductor element, the second conductor element, and the short-circuit portion are formed in an integral structure.
Portable electronic device. In any one of Claims 1 thru | or 13,
The short-circuit part includes a curved part,
Portable electronic device. In any one of Claims 1 thru | or 13,
The short-circuit part includes a plurality of connection parts,
Portable electronic device. In any one of Claims 1 thru | or 13,
A plurality of the short-circuit portions are arranged,
A first imaginary line connecting the short-circuit portion located at one end and the center of the first conductor element;
The angle θ formed by the second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element is:
0 degree <θ ≦ 90 degrees is satisfied,
Portable electronic device. In any one of Claims 1 thru | or 13,
A plurality of the short-circuit portions are arranged,
A first imaginary line connecting the short-circuit portion located at one end and the center of the first conductor element;
The angle θ formed by the second imaginary line connecting the short-circuit portion located at the other end and the center of the first conductor element is:
0 degree <θ ≦ 170 degree is satisfied,
Portable electronic device. In any one of Claims 1 thru | or 17,
A dial disposed on the opposite side of the first conductor element from the second conductor element side so as to overlap the first conductor element;
A solar panel that is disposed between the dial and the first conductor element, and receives light incident from the dial and generates power;
including,
Portable electronic device. In any one of Claims 1-18,
Including a metal case,
The distance between the outer edge of the first conductor element housed inside the case and the inner wall of the case is 1 mm or more in plan view.
Portable electronic device. In claim 2,
The first conductor element is a first anti-magnetic plate;
Portable electronic device. In claim 2 or claim 20,
The second conductor element is a second anti-magnetic plate;
Portable electronic device. In claim 21,
The ground plane and the circuit board are disposed between the first magnetically resistant plate and the second conductor element,
Portable electronic device. In claim 21,
The second anti-magnetic plate is disposed between the ground plane and the circuit board.
Portable electronic device. In claim 1,
It has a solar panel supported by the support part,
The support portion also serves as the first conductor element;
Portable electronic device. In claim 18,
In plan view, at least a part of the first conductor element is outside the outer edge of the solar panel,
Portable electronic device. In claim 1,
The first conductor element has a through hole,
A rotating shaft is disposed in the through hole,
Portable electronic device. In claim 18,
The electric power generated by the solar panel is input to the circuit board by a conduction part arranged along the short-circuit part.
Portable electronic device. In claim 27,
The conduction part includes a coil,
Portable electronic device. In claim 28,
The coil is
One end is connected to the solar panel,
The other end is connected to the circuit board,
Portable electronic device. In claim 9,
A non-conductive spacer disposed between the first conductor element and the second conductor element;
The spacer is configured such that a side facing the first conductor element and a side facing the second conductor element are substantially parallel.
Portable electronic device. In claim 30,
The spacer is made of a resin having a smaller dielectric loss tangent value than the date wheel presser,
Portable electronic device. In claim 30,
The spacer and the date indicator presser are integrally formed of the resin,
Portable electronic device.

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