JP2008270943A - Portable machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable device such that although a housing having an upper case and a lower case engaged with each other can be opened, the product can not be further disassembled and a component can be prevented from being lost or damaged. <P>SOLUTION: A finished upper case 21 opened by an opening portion A of a housing 23 having the upper case 21 and lower case 22 engaged with each other has a circuit board 27, disposed between a battery holder 29 and a cover 28, fixed to the upper case 21 with a special screw 33 together with the battery holder 29 and cover 28. A portable device main body comprises the finished upper case 31 and the lower case 22 having members constituting a latch mechanism 34. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable device including a battery.

  2. Description of the Related Art In recent years, portable devices that are used in a vehicle remote control system that performs communication with an in-vehicle device mounted on a vehicle and remotely controls locking / unlocking of a vehicle door are becoming widespread.

  Such a conventional portable device will be described with reference to FIG.

  FIG. 8 is a perspective view of a conventional portable device. In FIG. 8, 1 is an upper case, 2 is a lower case, and the upper case 1 and the lower case 2 are fitted together to form a housing 3. In the housing 3, an operation button 4, a control circuit (not shown) that transmits a radio signal via a transmission antenna (not shown) by operating the operation button 4, and power is supplied to the control circuit. A battery (not shown) is accommodated. These electronic components such as a transmission antenna and a control circuit are mounted on a circuit board (not shown).

  The upper case 1 and the lower case 2 are fitted to form a casing 3, while the casing 3 is opened to separate the upper case 1 and the lower case 2, that is, the fitting of the casing 3 is externally performed. A portable device 10 is configured by providing a groove-shaped opening portion A for opening from the center of the outer peripheral width direction on the mating surface of the upper case 1 and the lower case 2.

  Note that the machine key 15 formed by integrally molding the grip portion 15a and the key portion 15b is used when the portable device 10 cannot be used due to battery exhaustion or the like. Along with the key 15.

  In the above configuration, for example, when a user using the portable device 10 operates the operation button 4, a radio wave signal corresponding to the operation is transmitted. As a result, a vehicle-mounted device (not shown) mounted on the vehicle decodes the received radio signal and controls locking or unlocking of the vehicle door. This system eliminates the need for the user to insert and lock the machine key into the keyhole for locking and unlocking, improving convenience.

  The portable device 10 used in this system includes a button-type battery and is configured so that the battery can be easily replaced because the battery is consumed every time a radio signal is transmitted.

  When a user or the like opens the casing 3 when replacing the battery, a slotted opening A provided on the outer periphery of the casing 3 is inserted into a slotted opening A or a coin (not shown) (hereinafter referred to as an opening tool). Etc.), and the case 3 is opened (hereinafter referred to as “pricking force”), the housing 3 is opened and the battery can be easily replaced.

As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2001-339176 A

  However, in the above-described conventional portable device 10, by opening the housing 3, the battery accommodated in the housing 3 can be exposed and can be easily replaced, but the operation button 4, circuit board, etc. However, there is a problem that these components may be lost or damaged.

  The present invention solves such a conventional problem, and the housing in which the upper case and the lower case are fitted can be opened, but the product cannot be disassembled any more and the above parts can be lost. An object is to provide a portable device that does not hurt.

  In order to achieve the above object, a portable device of the present invention has the following configuration.

  According to the first aspect of the present invention, a portable device is configured by fixing a circuit board and a battery holder housed in a casing in which an upper case and a lower case are fitted to the upper case by a fixing means. The casing can be opened, but the product cannot be disassembled any more, so that it can prevent the component parts from being lost or damaged.

  The invention according to claim 2 is the invention according to claim 1, wherein the fixing means is a special screw having a head shape other than +-, and the upper case and the lower case or more without a special tool that matches the shape of the head. It has the effect that the product cannot be disassembled.

  As described above, according to the present invention, the housing in which the upper case and the lower case are fitted can be opened, but further product disassembly cannot be performed, and the component parts can be prevented from being lost or damaged. The advantageous effect that the portable device which can be obtained can be obtained is acquired.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(Embodiment)
FIG. 1 is a perspective view of a portable device according to an embodiment of the present invention, FIG. 2 is a separated perspective view of a main body and a machine key of the portable device, in which 21 is an upper case, The lower surface is opened, and includes a plurality of operation buttons 24 that are operated by the user, such as locking and unlocking, and a push button 30 that releases the latch when the machine key 35 is pulled out. Here, the operation button 24 and the push button 30 are formed at a height that does not protrude from the top surface of the upper case 21 in order to prevent inadvertent operation.

  Reference numeral 22 denotes a lower case, and the lower case 22 has an upper surface opened and is fitted to the upper case 21 to form a housing 23. The upper case 21 and the lower case 22 are molded from a tough resin material such as polycarbonate (PC) or polybutylene terephthalate (PBT).

  And the housing | casing 23 is provided with the key accommodating part 23a which accommodates the mechanical key 35 in the corner. As shown in FIG. 2, the key accommodating portion 23a has a concave flange portion 23d extending from the frontage to the back. The flange 23d is formed so that the front side where the machine key 35 is inserted is wide and the back side where the machine key 35 is accommodated is narrow so that the machine key 35 can be easily inserted.

  On one side surface of the key accommodating portion 23a, a movable portion 30a that constitutes a latch mechanism 34 together with the push button 30 is disposed so as to protrude from a hole formed in a mating surface between the upper case 21 and the lower case 22. .

  In addition, an opening portion A that opens the housing 23 is provided on the surface where the upper case 21 and the lower case 22 are in contact with each other on the back side of the key housing portion 23a. The open portion A is a groove-shaped recess provided in a portion where the upper case 21 and the lower case 22 are in contact with each other. The recess may be formed by only the upper case 21 or the lower case 22 or may be formed by both the upper case 21 and the lower case 22.

  The opening portion A can be implemented at any position on the mating surface of the upper case 21 and the lower case 22 of the key housing portion 23a, but it is preferable to provide the opening portion A on the back opening side past the flange portion 23d. .

  Further, the key accommodating portion 23a is provided with a cylindrical key pocket 22a into which the key portion 35b of the mechanical key 35 can be inserted into the lower case 22 in the lower right lower portion on the back side. And the mechanical key 35 accommodated in the key accommodating part 23a is inserted from the left direction, and the convex part ahead of the grip part 35a is fitted by the concave collar part 23d.

  Here, in the mechanical key 35, a grip portion 35a formed of a tough resin material such as PC or PBT, an elastic hard rubber material, or the like and a metal key portion 35b are integrally formed. The grip 35a incorporates an electronic key immobilizer control circuit 35c that communicates with the vehicle in order to allow the engine to start.

  Next, as shown in FIG. 3, the upper case 21 side sequentially covers the upper case 21, the operation button 24 that is movably locked to the upper case 21, and the entire lower surface of the circuit board 27. The cover 28 made of the elastic body, the circuit board 27 on which the control circuit 25 and the like are mounted, and the battery holder 29 to which the button-type battery 26 is mounted are sequentially stacked.

  The circuit board 27 is mounted with electronic components such as the control circuit 25, a transmission antenna 25b formed of a copper foil of the circuit board 27, a transmission / reception antenna 25c, and an electrode 26a for the battery 26.

  In the above assembly, first, the fastening portion 27a formed by turning one corner of the circuit board 27 is fitted into the convex fastening portion 29a provided at one corner of the battery holder 29, and then the battery holder 29 is connected to the circuit board 27 by a claw portion (not shown). Lock. Therefore, the circuit board 27 is held by the battery holder 29.

  Next, the cover 28 is fitted into the battery holder 29 from the circuit board 27 side. This fitting is performed in the following two stages. First, the cover 28 fits a fastening portion 28 a that is raised in a ring shape around a through-hole formed in the cover 28 to the outer periphery of the convex portion of the fastening portion 29 a of the battery holder 29.

  Further, the cover 28 fits an outer wall 28 c extending upward from a tongue-like convex portion 28 b provided on the outer periphery to the side wall 29 b of the battery holder 29 from the outside. Each fastening portion of the fitting body is screwed with a special screw 33 which is a chrysanthemum-shaped fixing means in which a projection is provided at the center of a chrysanthemum-like petal instead of the head shape, for example, + or-.

  Therefore, on the upper case 21 side, the battery holder 29, the circuit board 27, and the cover 28 are fixed to the upper case 21 with one special screw 33 in order from the outside, and the completed upper case 31 in FIG. Formed.

  On the other hand, on the lower case 22 side, as shown in FIG. 4B, the latch mechanism 34 includes a push button 30, a movable part 30 a formed integrally with the push button 30, and a spring that urges the push button 30 upward. 30b and a convex portion 30c that restricts the biasing force of the spring 30b together with the hole 22c of the lower case 22, and is movably disposed at a predetermined position of the lower case 22 to form a completed lower case 32. To do.

  The completed upper case 31 and the completed lower case 32 are fitted together to constitute a portable device body. Next, the main part of the portable device main body will be described with reference to FIG.

  As shown in FIG. 5, the circuit board 27 is fixed to the upper case 21 with a special screw 33 in a state where its fastening portion 27 a is sandwiched between the cover 28 and the battery holder 29.

  Here, the circuit board 27 is formed so as not to warp no matter how much the special screw 33 is tightened. That is, since the upper surface of the convex portion of the fastening portion 29 a provided on the battery holder 29 is in contact with the upper surface of the convex portion of the fastening portion 21 a provided on the upper case 21, as a result, when tightening with the special screw 33, No stress is applied during screw tightening, and no warping occurs.

  In addition, the circuit board 27 is accommodated in the battery holder 29, the battery holder 29 is penetrated by the special screw 33, and the fastening portion 28a of the ring-shaped protrusion is pressed by the fastening portion 29a and the fastening portion 21a. 21, it is possible to prevent water from entering the circuit board 27 from the special screw 33 side.

  Further, the entire upper surface of the circuit board 27 is covered with a cover 28. As described above, the cover 28 is provided with the tongue-shaped convex portion 28b extending outside the outer shape of the circuit board 27 on the outer periphery. In the example shown in FIG. 5, the convex portion 28 b is accommodated in the concave portion 23 c where the side wall of the upper case 21 and the side wall of the lower case 22 are vertically adjacent to each other, and the entire periphery thereof is formed with the upper case 21 and the lower case 22. It is suppressed by.

  Therefore, the cover 28 forms a waterproof means for preventing water from entering the housing 23 from the outside together with the upper case 21 and the lower case 22 by the convex portion 28b being elastically pressed by the upper case 21 and the lower case 22. ing.

  Further, in the battery 26 detachably accommodated in the battery holder 29, each electrode is connected / conducted to the circuit board 27 by the electrode plate 26a.

  Further, the upper case 21 and the lower case 22 are provided with a fitting portion 23b on substantially the entire circumference of a casing 23 formed by fitting with each other. The fitting portion 23b is provided, for example, on the outer wall 22b of the lower case 22 opposite to the concave portion having a substantially "<" shape in cross section provided on the inward wall 21b of the upper case 21 located on the outer side. The portable device main body is configured by fitting a convex portion having a substantially “<” shape in cross-sectional view.

  The portable device 20 is configured by housing the machine key 35 in the portable device body.

  In the above configuration, for example, when the user operates the unlocking operation button 24, the control circuit 25 operates and a radio signal of an unlocking command is transmitted from the portable device 20. A vehicle-mounted device (not shown) mounted on the vehicle decodes the received radio signal and controls unlocking of the vehicle door. Further, the in-vehicle device that detects that the portable device 20 is in the vehicle communicates with the immobilizer control circuit 35c built in the machine key 35 to allow the engine to start.

  Next, the procedure for battery replacement will be described. The casing 23 of the portable device 20 is opened when the battery 26 is replaced with a new one.

  First, as is clear from FIG. 1, since the opening portion A is not exposed on the outer periphery of the portable device 20 with the mechanical key 35 in the retracted state, the latch is made to expose the opening portion A as shown in FIG. The mechanical key 35 is removed by operating the mechanism 34.

  As a result, the opening portion A provided in the key housing portion 23a appears in the table. The housing 23 is opened by inserting an opening tool into the opening portion A and applying a forcing force. As a result, the housing 23 is separated into the upper case 21 side and the lower case 22 side.

  As shown in FIG. 4A, the upper case 21 side forms a completed upper case 31 in which the circuit board 27 and the like are fixed with a special screw 33. The attached battery 26 can be easily replaced.

  Here, even if the user or the like tries to disassemble the case 31 further after completion, the special screw 33 as the fixing means has a head shape other than +-, and a special tool suitable for this head shape is used. The product cannot be disassembled unless you have it with you. That is, the housing 23 can be opened, but further product disassembly cannot be performed, and the operation buttons 24, the circuit board 27, and the like are not in a single state, so that these components are not lost or damaged.

  Further, since the circuit board 27 cannot be used alone and cannot be touched, there is a secondary effect that the circuit board 27 is not subjected to electrostatic discharge from the human body.

  After the battery 26 mounted on the battery holder 29 is replaced with a new battery, the completed upper case 31 and the completed lower case 32 mounted with the respective components are fitted again, and the machine key 35 is inserted. As a result, the portable device 20 returns to the original state.

  As described above, according to the present embodiment, the circuit board 27 is arranged between the battery holder 29 and the cover 28 and the battery holder 29 and the cover 28 are fixed to the upper case 21 with the special screw 33. By forming 31, it is possible to obtain a portable device 20 in which the case 31 cannot be disassembled any more upon completion. Furthermore, since the machine key 35 can be accommodated in the portable device main body, the troublesomeness associated with the conventional separately can be eliminated.

  In addition, by using a special screw as the fixing means, it is possible to prevent the product from being disassembled beyond the case 31 upon completion.

  In the present embodiment, the fixing means has been described with the example of the special screw 33. However, the fixing means is not limited to this, and as shown in FIG. 6 instead of the special screw 33, for example, in FIG. A hole 41b is provided in the center of the fastening portion 41a of the case 41, and the hole 41b is filled with adhesive B as a fixing means, and then the cylindrical fastening portion 49a on the battery holder 49 side is fitted into the hole 41b. In the state, the case 40 can be formed even if the case 40 is formed by fixing with the adhesive B.

  As shown in FIG. 6B, the fixing means may use eyelets or rivets 53. In this case, a step is provided in the center of the fastening portion 51a of the upper case 51 from the upper surface side, and from the step position. A through hole 51b is provided. On the other hand, the battery holder 59 side inserts a rivet 53 as a fixing means into the hole 51b in a state where a cylindrical fastening part 59a penetrating the hole 51b is fitted into the fastening part 51a.

  Then, the rivet 53 fixes the upper case 51 and the battery holder 59, and the adhesive B is filled and fixed to the step on the upper surface side of the upper case 51. Even if the case 50 is formed upon completion in this manner, the embodiment can be implemented.

  Note that the portable device 20 has been described as an example in which it is necessary to prevent water from entering the housing 23, but the present invention is not limited to this, and may be a case where it is not necessary to prevent water from entering the housing 23. In this case, the waterproof means cover 28 is unnecessary, and the special screw 33 fixes the circuit board 27 and the battery holder 29 to the upper case 21.

  Further, the head shape of the special screw 33 has been described with the example of the chrysanthemum projection, but the shape is not limited to this, and any special + -driver can be used. As an example, as shown in FIG. 7, the cross projection shape of FIG. 7 (a), the double hole shape of FIG. 7 (b), the substantially Y-shaped character shape of FIG. 7 (c), and the shape of FIG. There are 1/2 rugby ball shape.

  Further, as shown in FIG. 4B, the latch mechanism 34 is described as an example of a push button type in which the spring 30b is compressed by depressing the push button 30 and the movable portion 30a moves in the direction of the arrow to release the latch. However, the present invention is not limited to this, and a slide lever is used instead of the push button 30, and a lever type that releases the latch by operating the slide lever, or a hinge type that releases the latch by operating the hinge lever. It is also possible to implement a magnet type in which a metal plate such as iron is embedded in one of the key housing portion 23a and the grip portion 35a and a magnet is embedded in the other.

  Since the portable device according to the present invention cannot be further disassembled after the housing is opened, the portable device has an effect of preventing the component parts from being lost or damaged. It is useful for a portable device used in a vehicle remote control system or the like that communicates with each other and remotely controls locking / unlocking of a vehicle door.

1 is an overall perspective view of a portable device according to an embodiment of the present invention. Separate perspective view of main body and machine key of the portable device An exploded perspective view of the main part of the main body of the portable device Perspective view of the main part of the portable device Cross section of the main part Cross-sectional view of the main part of the other embodiment Part drawing of the special screw Overall perspective view of a conventional portable device

Explanation of symbols

20 Mobile device (transmitter)
21 Upper case 21a Fastening part (upper case)
21b Inward wall (upper case)
22 Lower case 22a Key pocket 22b Outward wall (lower case)
23 Case 23b Fitting part 23c Recessed part 23d Hedge 25 Control circuit 26 Battery 26a Electrode 27 Circuit board 27a Fastening part (circuit board)
28 Cover 28a Fastening part (cover)
28b Convex part (cover)
29 Battery holder 29a Fastening part (battery holder)
33 Special screw (fixing means)

Claims (2)

A circuit board on which a control circuit for transmitting radio wave signals is mounted, a battery for supplying power to the control circuit, a case in which an upper case and a lower case are fitted and housing the control circuit and the battery, and the battery Battery holder to hold
A portable device that covers the circuit board with the battery holder and is attached to the upper case by a fixing means. The portable device according to claim 1, wherein the fixing means is a special screw having a head shape other than +-.

Images