JP2011029958A - Folding type portable radio equipment, circuit short-circuiting method, and circuit short-circuiting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To avoid a structure in a hinge portion from being complicated. <P>SOLUTION: Folding type portable radio equipment includes: a lower case 2; an upper case 3; a hinge portion 4 connecting the lower case 2 and the upper case 3 so as to freely expand/fold the cases; a case dipole lower circuit 5a provided in the lower case 2 and partially constituting a case dipole antenna 5; a case dipole upper circuit 5b which is provided inside the upper case 3 and partially constitutes the case dipole antenna 5; a case dipole power feeding path 5c connected to the case dipole lower circuit 5a and the case dipole upper circuit 5b; a predetermined lower circuit 6a provided in the lower case 2; a predetermined upper circuit 6b provided in the upper case 3; and a short-circuiting means 7 for short-circuiting the predetermined lower circuit 6a and the predetermined upper circuit 6b utilizing the case dipole power feeding path 5c when the cases are folded. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a foldable portable radio such as a foldable mobile phone, a circuit short-circuiting method thereof, and a circuit short-circuit device.

A foldable portable wireless device including a lower housing, an upper housing, and a hinge portion that connects the lower housing and the upper housing so as to be unfoldable / foldable is widely used.
In general, this type of foldable portable radio device includes a communication antenna such as a whip antenna or a helical antenna in the vicinity of a hinge portion, and performs wireless communication via this communication antenna. There are an increasing number of things with
The case dipole antenna is a dipole type antenna that uses the metal frame of the case, the ground pattern of the board provided in the case, the conductive member of the hinge part, etc. Good antenna characteristics can be obtained.

For example, the foldable portable wireless device disclosed in Patent Document 1 includes a housing dipole antenna and a monopole antenna, and is configured to automatically switch the antenna to be used according to the expansion / folding of the housing. Yes.
The foldable portable radio shown in Patent Document 2 also includes a case dipole antenna and a monopole antenna, and switches reactance elements connected to the case dipole antenna according to the expansion / folding of the case. Thus, the current distribution of the upper and lower housings is adjusted to improve the antenna gain.

JP 2005-333323 A JP 2005-057664 A

By the way, in this type of folding portable wireless device, a circuit is often added in accordance with the addition of a new function.
However, if the added circuit is configured across the lower and upper housings and the circuits in both housings need to be short-circuited, a new connection between the lower and upper housings Since it is necessary to add a route, there is a problem that the structure of the hinge portion becomes complicated. In particular, in a foldable mobile phone employing a biaxial hinge with many design restrictions, it is not easy to add a connection path to the hinge.

  The object of the present invention is to newly connect a predetermined lower circuit provided in the lower casing and a predetermined upper circuit provided in the upper casing, which is the above-described problem, between the lower casing and the upper casing. It is an object of the present invention to provide a foldable portable wireless device, a circuit short-circuiting method, and a circuit short-circuiting device that can be short-circuited without adding a route and can avoid the complicated structure of the hinge portion.

  In order to achieve the above object, a foldable portable wireless device of the present invention includes a lower casing, an upper casing, a hinge section that connects the lower casing and the upper casing so as to be unfoldable / foldable, and the lower casing. A case dipole lower circuit provided in the body and constituting a part of the case dipole antenna; a case dipole upper circuit provided in the upper case and constituting a part of the case dipole antenna; A case dipole lower circuit and a case dipole power supply path connected to the case dipole upper circuit, a predetermined lower circuit provided in the lower case, and a predetermined upper circuit provided in the upper case And a circuit short-circuit means for short-circuiting the predetermined lower circuit and the predetermined upper circuit using the power supply path for the case dipole when the case is folded.

  The circuit short-circuit method according to the present invention includes a lower casing, an upper casing, a hinge section that connects the lower casing and the upper casing so as to be unfoldable / foldable, and a lower casing. Lower circuit for housing dipole that forms part of body dipole antenna, upper circuit for housing dipole that is provided in the upper housing and forms part of housing dipole antenna, and lower circuit for housing dipole A foldable portable wireless device including a casing dipole power supply path connected to the casing dipole upper circuit, and a predetermined lower circuit provided in the lower casing, and a predetermined provided in the upper casing. The upper circuit is provided, and the predetermined lower circuit and the predetermined upper circuit are short-circuited by using the casing dipole power supply path when the casing is folded.

  Further, the circuit short-circuiting device of the present invention is provided in the lower housing, the upper housing, the hinge portion for connecting the lower housing and the upper housing so as to be unfoldable / foldable, and the lower housing. Lower circuit for housing dipole that forms part of body dipole antenna, upper circuit for housing dipole that is provided in the upper housing and forms part of housing dipole antenna, and lower circuit for housing dipole And a predetermined lower circuit provided in the lower casing and provided in the upper casing, and incorporated in a foldable portable wireless device including a casing dipole feeding path connected to the upper circuit for the casing dipole. And a circuit short-circuit means for short-circuiting the predetermined lower circuit and the predetermined upper circuit using the power supply path for the case dipole when the case is folded. It is constituted.

  According to the present invention, a predetermined lower circuit provided in the lower casing and a predetermined upper circuit provided in the upper casing can be connected without adding a new connection path between the lower casing and the upper casing. Short circuiting is possible, and the complexity of the structure in the hinge portion can be avoided.

It is a block diagram which shows schematic structure of the foldable portable radio | wireless machine (expanded state) which concerns on embodiment of this invention. It is a schematic perspective view which shows the electric power feeding path | route for case dipoles of the foldable portable radio | wireless machine (folded state) which concerns on embodiment of this invention. It is a block diagram which shows the specific internal structure of the foldable portable radio | wireless machine (folded state) which concerns on embodiment of this invention. It is a graph which shows the frequency characteristic of the communication antenna of the foldable portable radio | wireless machine (folded state) which concerns on embodiment of this invention. It is a schematic perspective view which shows the other example of the housing | casing dipole electric power feeding path | route of the foldable portable radio | wireless machine (folded state) which concerns on embodiment of this invention. It is a schematic perspective view which shows the other example of the electric power feeding path | route for case dipoles of the foldable portable radio | wireless machine (folded state) which concerns on embodiment of this invention.

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

FIG. 1 is a block diagram showing a schematic configuration of a foldable portable wireless device (deployed state) according to an embodiment of the present invention.
As shown in this figure, a foldable portable wireless device 1 according to an embodiment of the present invention is connected to a lower housing 2, an upper housing 3, and a lower housing 2 and an upper housing 3 that can be unfolded / folded. Hinge part 4 that is provided in the lower casing 2, a casing dipole lower circuit 5 a that constitutes a part of the casing dipole antenna 5, and an upper casing 3 that is provided in the casing dipole antenna 5. A housing dipole upper circuit 5b and a housing dipole lower circuit 5a and a housing dipole power supply path 5c connected to the housing dipole upper circuit 5b are provided.

  Furthermore, the foldable portable wireless device 1 according to the embodiment of the present invention includes a predetermined lower circuit 6a provided in the lower housing 2, a predetermined upper circuit 6b provided in the upper housing 3, and a housing folding. In some cases, a circuit short-circuit means 7 for short-circuiting the predetermined lower circuit 6a and the predetermined upper circuit 6b by using the case dipole power supply path 5c is provided.

That is, in the folding portable wireless device 1, when adding a circuit according to the addition of a new function or the like, the added circuit is configured across the lower housing 2 and the upper housing 3, When it is necessary to short-circuit the circuits 6a and 6b in 2 and 3, the predetermined lower circuit 6a and the predetermined upper circuit 6b can be short-circuited by using the housing dipole power supply path 5c. There is no need to add a new connection path between the housing 2 and the upper housing 3, and as a result, the structure of the hinge portion 4 can be prevented from becoming complicated.
In addition, since the housing dipole antenna 5 is normally operated only in the housing unfolded state, even if the housing dipole power supply path 5c is used in the housing folded state, the housing dipole antenna 5 operates as expected. There is no impact.

  Next, a specific configuration of the folding portable wireless device according to the embodiment of the present invention will be described with reference to FIGS.

FIG. 2 is a schematic perspective view showing a power supply path for a case dipole of the foldable portable wireless device (folded state) according to the embodiment of the present invention.
As shown in FIG. 2, the foldable portable wireless device 1 according to the embodiment of the present invention connects the lower housing 2, the upper housing 3, and the lower housing 2 and the upper housing 3 so as to be unfoldable / foldable. And a hinge portion 4 to be provided. Here, the hinge portion 4 has a hinge unit 8 made of a conductive member, and the housing dipole lower circuit 5a (lower substrate 9) and the housing dipole upper circuit 5b (via the hinge unit 8). The upper substrate 10) is connected. That is, the case dipole power supply path 5c of this embodiment includes the hinge unit 8, the case dipole lower power supply path 5d that connects the hinge unit 8 to the case dipole lower circuit 5a, and the hinge unit 8 as the case. And a housing dipole upper power supply path 5e connected to the dipole upper circuit 5b.

FIG. 3 is a block diagram showing a specific internal configuration of the foldable portable radio device (folded state) according to the embodiment of the present invention, and FIG. 4 is a foldable portable radio device (folded state) according to the embodiment of the present invention. It is a graph which shows the frequency characteristic of the communication antenna of ().
As shown in FIG. 3, the foldable portable wireless device 1 according to the embodiment of the present invention includes a communication antenna 11 such as a housing dipole antenna 5 and a whip antenna or a helical antenna disposed in the vicinity of the hinge portion 4. The housing dipole antenna 5 is used when the housing is unfolded, and wireless communication is performed using the communication antenna 11 when the housing is folded.

  The communication antenna 11 is configured by connecting an antenna element 11 b disposed in the vicinity of the hinge portion 4 to a communication antenna radio circuit 11 a provided in the lower housing 2. In such a communication antenna 11, when the casing is in a folded state, as shown by the solid line in FIG. 4, unnecessary resonance may occur in the use frequency band. This unnecessary resonance is caused by the shape of the casing, and is generated because reverse-phase currents are generated in the upper casing 3 and the lower casing 2 in the folded state of the casing. And since this unnecessary resonance is not resonance of the antenna itself arrange | positioned for communication, if generation | occurrence | production is suppressed, while the characteristic of the communication antenna 11 will improve, antenna design will become easy.

  Therefore, in the foldable portable wireless device 1 of the present embodiment, the unnecessary resonance suppressing lower circuit 6a is provided inside the lower housing 2 as the predetermined lower circuit 6a, and the inner portion of the upper housing 3 as the predetermined upper circuit 6b. Is provided with an upper circuit 6b for suppressing unnecessary resonance, and when the casing is folded, the casing dipole power supply path 5c is used to short-circuit both circuits 6a and 6b, thereby suppressing unnecessary resonance with respect to the communication antenna 11. A resonance suppression circuit 6 is configured.

The housing dipole antenna 5 of the present embodiment includes a housing dipole lower circuit 5a, a housing dipole power feeding path 5c (a housing dipole lower power feeding path 5d, a hinge unit 8, and a housing dipole upper power feeding path 5e). And a housing dipole upper circuit 5b.
The housing dipole antenna 5 transmits and receives RF signals throughout the housing when the housing is in an unfolded state, and processes the RF signals with a wireless circuit included in the housing dipole lower circuit 5a.

  The circuit short-circuit means 7 of the present embodiment includes a state detection means 12 that detects the folded state of the housing, and a lower circuit for suppressing unnecessary resonance when the housing dipole power supply path 5c is detected when the folded state of the housing is detected. 6a and switching means 13 connected to the unnecessary resonance suppressing upper circuit 6b.

  The switching means 13 is provided in the lower housing 2, and when the folded state of the housing is detected, the switching means 13 is connected to the connection partner of the housing dipole power feeding path 5 c (the housing dipole lower power feeding path 5 d). A lower switching circuit 13a for switching from the dipole lower circuit 5a to the unnecessary resonance suppressing lower circuit 6a, and a casing dipole power supply path 5c (provided in the upper casing 3) when the folded state of the casing is detected. And an upper switching circuit 13b for switching the connection partner of the case dipole upper feeding path 5e) from the case dipole upper circuit 5b to the unnecessary resonance suppressing upper circuit 6b.

The state detection means 12 is provided in the lower housing 2 and includes a lower state detection circuit 12a that detects the folded state of the housing, and an upper portion that is provided in the upper housing 3 and detects the folded state of the housing. A state detection circuit 12b.
Any detection method can be used as a detection method of the housing folded state by each of the state detection circuits 12a and 12b. For example, a method of mechanically detecting the proximity of the lower housing 2 and the upper housing 3 due to folding with a microswitch or the like, a method of magnetically detecting with a Hall element, or a method of optically detecting with a phototransistor or the like Etc.

  Next, the operation of the folding portable wireless device 1 according to the embodiment of the present invention will be described with reference to FIGS.

  In the housing unfolded state, this is detected by each of the state detection circuits 12a and 12b. The lower switching circuit 13a connects the case dipole power supply path 5c (the case dipole lower power supply path 5d) to the case dipole lower circuit 5a in response to detection of the developed state of the lower state detection circuit 12a. The circuit 13b connects the case dipole power supply path 5c (the case dipole upper power supply path 5e) to the case dipole upper circuit 5b in response to detection of the developed state of the upper state detection circuit 12b. As a result, the housing dipole antenna 5 transmits and receives RF signals throughout the housing, and processes the RF signals with a radio circuit included in the housing dipole lower circuit 5a.

On the other hand, in the case where the case is folded, the case dipole antenna 5 is in the non-operation mode, and instead the antenna element 11b of the communication antenna 11 that is in the operation mode transmits and receives RF signals, and the communication antenna radio circuit 11a receives the RF signal. Process.
Also. In the housing folded state, this is detected by each of the state detection circuits 12a and 12b. The lower switching circuit 13a connects the case dipole power supply path 5c (the case dipole lower power supply path 5d) to the unnecessary resonance suppression lower circuit 6a in response to the detection of the folded state of the lower state detection circuit 12a. The circuit 13b connects the case dipole power supply path 5c (the case dipole upper power supply path 5e) to the unnecessary resonance suppression upper circuit 6b in response to detection of the folded state of the upper state detection circuit 12b.

Here, let us consider a case where the unnecessary resonance suppressing lower circuit 6a and the unnecessary resonance suppressing upper circuit 6b are opened and short-circuited in the case folded.
The solid line in FIG. 4 shows an example in which unnecessary resonance is generated in the frequency band of the communication antenna 11 when the unnecessary resonance suppressing lower circuit 6a and the unnecessary resonance suppressing upper circuit 6b are opened in the housing folded state. Is shown. Here, when the unnecessary resonance suppressing lower circuit 6a and the unnecessary resonance suppressing upper circuit 6b are short-circuited using the housing dipole power supply path 5c, the generated resonance has a high frequency as shown by the broken line in FIG. It can be shifted to a belt. This is realized by giving an arbitrary frequency characteristic to the unnecessary resonance suppressing lower circuit 6a and the unnecessary resonance suppressing upper circuit 6b, and changing a high-frequency connection condition between the lower substrate 9 and the upper substrate 10.

According to the foldable portable wireless device 1 of the present embodiment configured as described above, the lower casing 2, the upper casing 3, and the lower casing 2 and the upper casing 3 are connected so as to be unfoldable / foldable. A hinge part 4, a casing dipole lower circuit 5 a that is provided in the lower casing 2 and forms a part of the casing dipole antenna 5, and is provided in the upper casing 3 and is one of the casing dipole antennas 5. A housing dipole upper circuit 5b, a housing dipole lower circuit 5a, a housing dipole power supply path 5c connected to the housing dipole upper circuit 5b, and a predetermined portion provided in the lower housing 2. The lower circuit 6a, the predetermined upper circuit 6b provided in the upper casing 3, and the casing dipole power supply path 5c are used to fold the predetermined lower circuit 6a and the predetermined upper circuit 6b when the casing is folded. Short circuit 7, a predetermined lower circuit 6 a provided in the lower housing 2 and a predetermined upper circuit 6 b provided in the upper housing 3 are placed between the lower housing 2 and the upper housing 3. Short circuiting is possible without adding a new connection path, and the structure of the hinge portion 4 can be prevented from becoming complicated.
In addition, since the housing dipole antenna 5 is normally operated only in the housing unfolded state, even if the housing dipole power supply path 5c is used in the housing folded state, the housing dipole antenna 5 operates as expected. There is no impact.

  In addition, the circuit short-circuit unit 7 includes a state detection unit 12 that detects the folded state of the casing, and the casing dipole power supply path 5c when the folded state of the casing is detected. Since the switching means 13 connected to the upper circuit 6b is provided, the predetermined lower circuit 6a and the predetermined upper circuit 6b can be automatically short-circuited according to folding of the casing.

  Further, the switching means 13 is provided in the lower housing 2, and when the folded state of the housing is detected, the switching means 13 is connected to the housing dipole power supply path 5c from the housing dipole lower circuit 5a. A lower switching circuit 13a for switching to the lower circuit 6a, and an upper circuit for the housing dipole, which is provided in the upper housing 3 and is connected to the power feeding path 5c for the housing dipole when the folded state of the housing is detected. And an upper switching circuit 13b for switching from 5b to a predetermined upper circuit 6b, so that the housing dipole lower circuit 5a and the housing dipole upper circuit 5b can be reliably separated in the folded state of the housing, As a result, the design of the predetermined lower circuit 6a and the predetermined upper circuit 6b becomes easy, and the lower circuit 5a for the case dipole and the upper circuit 5b for the case dipole Eliminating the sound, it can be operated reliably predetermined lower circuit 6a and the predetermined upper circuit 6b.

  The state detection means 12 is provided in the lower housing 2 and includes a lower state detection circuit 12a that detects the folded state of the housing, and an upper portion that is provided in the upper housing 3 and detects the folded state of the housing. Since the state detection circuit 12b is provided, the switching circuits 13a and 13b provided in the housings 2 and 3 can be switched independently according to the expansion / folding of the housing.

  Further, in the present embodiment, the communication antenna 11 other than the housing dipole antenna 5 is provided in the vicinity of the hinge portion 4, and the predetermined lower circuit 6 a and the predetermined upper circuit 6 b are short-circuited to each other, thereby Since the unnecessary resonance suppression circuit 6 that suppresses unnecessary resonance is configured, it is possible to avoid deterioration of antenna characteristics due to unnecessary resonance.

Although the present invention has been described with reference to the embodiment, it is needless to say that the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the claims.
For example, the circuit to be short-circuited using the case dipole power supply path 5c when the case is folded is not limited to the unnecessary resonance suppression circuit 6 of the above embodiment, and an arbitrary circuit can be configured.

  Moreover, in the said embodiment, the hinge part 4 has the hinge unit 8 which consists of an electroconductive member, The lower circuit 5a for housing | casing dipoles (lower board | substrate 9) and the upper circuit 5b for housing | casing dipoles are connected via this hinge unit 8. (Upper substrate 10) is connected, but as shown in FIG. 5, a folding portable device in which the upper substrate 10 and the lower substrate 9 are directly connected by the coaxial line 14 without using the hinge unit 8. The present invention can also be implemented in the wireless device 1B, and can also be implemented in a foldable wireless device 1C in which the upper substrate 10 and the lower substrate 9 are directly connected by the biaxial hinge unit 15 as shown in FIG.

  INDUSTRIAL APPLICABILITY The present invention can be used as a foldable portable radio device such as a foldable mobile phone, a circuit short-circuit method thereof, and a circuit short-circuit device.

DESCRIPTION OF SYMBOLS 1 Folding type portable wireless device 2 Lower housing | casing 3 Upper housing | casing 4 Hinge part 5 Housing | casing dipole antenna 5a Housing | casing dipole lower circuit 5b Housing | casing dipole upper circuit 5c Housing | casing dipole electric power supply path 6 Unnecessary resonance suppression circuit 6a Resonance suppression lower circuit (predetermined lower circuit)
6b Unnecessary resonance suppression upper circuit (predetermined upper circuit)
7 Circuit shorting means 8 Hinge unit 9 Lower substrate 10 Upper substrate 11 Communication antenna 12 State detecting means 12a Lower state detecting circuit 12b Upper state detecting circuit 13 Switching means 13a Lower switching circuit 13b Upper switching circuit

Claims (9)

A lower housing,
An upper housing;
A hinge part for connecting the lower case and the upper case so as to be unfolded / foldable,
A lower circuit for a housing dipole that is provided in the lower housing and forms a part of the housing dipole antenna;
An upper circuit for a housing dipole that is provided in the upper housing and forms a part of the housing dipole antenna;
A housing dipole power supply path connected to the housing dipole lower circuit and the housing dipole upper circuit;
A predetermined lower circuit provided in the lower housing;
A predetermined upper circuit provided in the upper casing;
A folding portable wireless device comprising: a circuit short-circuit means for short-circuiting the predetermined lower circuit and the predetermined upper circuit using the power supply path for the case dipole when the case is folded. The circuit short-circuit means
State detection means for detecting the folded state of the housing;
The folding portable wireless device according to claim 1, further comprising switching means for connecting the casing dipole power supply path to the predetermined lower circuit and the predetermined upper circuit when a folded state of the casing is detected. . The switching means is
A lower switching circuit that is provided in the lower housing and switches the connection partner of the housing dipole power supply path from the lower circuit for the housing dipole to the predetermined lower circuit when the folded state of the housing is detected. When,
An upper switching circuit that is provided in the upper casing and switches the connection partner of the casing dipole power supply path from the upper circuit for the casing dipole to the predetermined upper circuit when the folded state of the casing is detected. The foldable portable wireless device according to claim 2, further comprising: The state detection means is
A lower state detection circuit provided in the lower case and detecting a folded state of the case;
The foldable portable wireless device according to claim 2 or 3, further comprising an upper state detection circuit provided in the upper housing and detecting a folded state of the housing. In the vicinity of the hinge portion, a communication antenna other than the housing dipole antenna is provided,
5. The foldable mobile phone according to claim 1, wherein the predetermined lower circuit and the predetermined upper circuit constitute an unnecessary resonance suppression circuit that suppresses unnecessary resonance with respect to the communication antenna by being short-circuited with each other. transceiver. A lower housing,
An upper housing;
A hinge part for connecting the lower case and the upper case so as to be unfolded / foldable,
A lower circuit for a housing dipole that is provided in the lower housing and forms a part of the housing dipole antenna;
An upper circuit for a housing dipole that is provided in the upper housing and forms a part of the housing dipole antenna;
A foldable portable wireless device comprising: a housing dipole power supply path connected to the housing dipole lower circuit and the housing dipole upper circuit;
A predetermined lower circuit provided in the lower housing;
A predetermined upper circuit provided in the upper housing,
A circuit short-circuiting method comprising: short-circuiting the predetermined lower circuit and the predetermined upper circuit using the power supply path for the case dipole when the case is folded. A state detection procedure for detecting the folded state of the housing;
The circuit short-circuiting method according to claim 6, wherein, when a folded state of the housing is detected, a switching procedure for connecting the power feeding path for the housing dipole to the predetermined lower circuit and the predetermined upper circuit is executed. A lower housing,
An upper housing;
A hinge part for connecting the lower case and the upper case so as to be unfolded / foldable,
A lower circuit for a housing dipole that is provided in the lower housing and forms a part of the housing dipole antenna;
An upper circuit for a housing dipole that is provided in the upper housing and forms a part of the housing dipole antenna;
Incorporated into a foldable portable wireless device comprising a housing dipole lower circuit and a housing dipole power supply path connected to the housing dipole upper circuit,
A predetermined lower circuit provided in the lower housing;
A predetermined upper circuit provided in the upper casing;
A circuit short-circuiting device comprising: a circuit short-circuit means for short-circuiting the predetermined lower circuit and the predetermined upper circuit using the power supply path for the case dipole when the case is folded. The circuit short-circuit means
State detection means for detecting the folded state of the housing;
The circuit short-circuiting device according to claim 8, further comprising switching means for connecting the casing dipole power supply path to the predetermined lower circuit and the predetermined upper circuit when a folded state of the casing is detected.

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