JP4862598B2 - Portable communication device - Google Patents

Description

  The present invention relates to a mobile communication device, and more particularly, to a mobile communication device capable of suppressing generation of radiation noise.

  In recent years, portable communication devices such as mobile phones and wireless communication devices have increased functionality, and the scale of electronic circuits mounted on the devices has increased. For this reason, a method has been adopted in which the printed circuit board constituting the electronic circuit is divided into a plurality of pieces and arranged and mounted three-dimensionally in the apparatus housing to increase the mounting efficiency. A plurality of printed boards are electrically connected by various connectors, flexible boards, and the like (see, for example, Patent Document 1).

  As described above, when the printed circuit board is divided into a plurality of sheets, there is a problem that the other printed circuit board functions as an antenna with respect to one printed circuit board, and radiation noise is easily generated.

  Therefore, the ground wiring (not shown) of the printed wiring board 110 and the ground wiring (not shown) of the printed wiring board 120 are made of leaf spring members (130 in FIG. 8), pogo pins (140 in FIG. 9), metal spacers, metal By connecting using metal fittings such as screws (see Patent Document 2), the ground potential between the substrates is stabilized, and the generation of radiation noise is suppressed.

JP 2004-253523 A JP 2003-283072 A

  Although the generation of radiated noise can be suppressed by connecting the ground wiring between the substrates using metal fittings as in the prior art, the metal fittings are mounted on the printed circuit board or in the device housing in portable communication devices such as mobile phones and wireless communication devices. Since mounting increases the mounting area and the housing volume, it is difficult to reduce the size and thickness. In other words, these metal fittings have a large component area and height in terms of component configuration, and occupy a large mounting volume and mounting area on the printed circuit board in the casing, so that it is difficult to reduce the size and thickness. Further, the leaf spring member (130 in FIG. 8) and the pogo pin (140 in FIG. 9) have high contact pressure due to the component structure, and an electronic circuit (not shown) or electronic component (see FIG. 9) on the printed wiring board 120 due to stress. Not shown), and the reliability was low. Furthermore, since the position where the leaf spring member 130 and the pogo pin 140 can be contacted is limited, the mounting is limited.

  The main subject of this invention is reducing a mounting area and a mounting volume, suppressing generation | occurrence | production of the radiation noise between printed circuit boards.

In a first aspect of the present invention, in a mobile communication device, a first printed wiring board, a second printed wiring board electrically connected to the first printed wiring board via a connector, and the first printed circuit board. A connection board electrically connected to the wiring board and the second printed wiring board, wherein the connection board relays an electrical connection between the first printed wiring board and the second printed wiring board. A material that is disposed between the connection board and the second printed wiring board, electrically connects the connection board and the second printed wiring board, and is conductive and has an impact absorbing function. The second printed wiring board is mounted with a metal case portion that is electrically connected to a ground pattern, and the conductive connection member includes the metal case. Through the part, characterized in that it is electrically connected to the second printed circuit board.

In a second aspect of the present invention, in the portable communication device, the first printed wiring board is electrically connected to the first printed wiring board, the second printed wiring board, and the second printed wiring board. And a first connection board connected via a connector, and a second connection board electrically connected to the first printed wiring board and the second printed wiring board, the first connection board and the The second connection board is configured to relay electrical connection between the first printed wiring board and the second printed wiring board, and is disposed between the first connection board and the second printed wiring board. And a first conductive connection member that electrically connects the first connection board and the second printed wiring board and is made of a conductive material having an impact absorbing function, The wire board mounts a first metal case portion that is electrically connected to a ground pattern, and the first conductive connection member is electrically connected to the second printed wiring board via the first metal case portion. It is characterized by being.

  In the portable communication device of the present invention, the second communication board is disposed between the second connection board and the second printed wiring board, and electrically connects the second connection board and the second printed wiring board, It is preferable to include a second conductive connection member made of a conductive material having a shock absorbing function.

  In the portable communication device of the present invention, it is preferable that the second conductive connection member is connected to each pad portion serving as a ground pattern in the second connection board and the second printed wiring board.

  In the portable communication device of the present invention, the second printed wiring board mounts a second metal case portion that is electrically connected to a ground pattern, and the second conductive connection member includes the second metal case portion. It is preferable to be electrically connected to the second printed wiring board via.

  According to the present invention, it is possible to improve the mounting efficiency over the conventional configuration while stabilizing the ground potential between the printed boards.

  A portable communication device according to Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view schematically showing the configuration of the mobile communication device according to Embodiment 1 of the present invention. FIG. 2 is a partial cross-sectional view schematically showing the configuration of the substrate assembly mounted on the lower housing in the mobile communication device according to Embodiment 1 of the present invention. FIG. 3 is an exploded perspective view schematically showing the configuration of the board assembly mounted on the mobile communication device according to Embodiment 1 of the present invention. In FIG. 1, electronic components mounted on the printed wiring boards 10, 20, and 40 are omitted.

  The mobile communication device 1 is a portable small mobile communication device such as a mobile phone or a PHS (Personal Handyphone System), and FIG. 1 illustrates a general folding mobile phone. The mobile communication device 1 includes an upper housing 2, a lower housing 3, a hinge unit 4, a battery 5, a printed wiring board 10, a printed wiring board 20, a connection board 30, and a printed wiring board 40. The wiring member 50 and the conductive connection member 60 are included.

  The upper housing 2 is foldably connected to the lower housing 3 via the hinge portion 4. A printed wiring board 40 and a part of the wiring member 50 are mounted on the upper housing 2.

  The lower housing 3 is foldably connected to the upper housing 2 via the hinge portion 4. A battery 5 is detachably attached to the lower housing 3. A substrate assembly of the printed wiring board 10, the printed wiring board 20, the connection board 30, and a part of the wiring member 50 is mounted on the lower housing 3. The lower housing 3 incorporates a reinforcement frame, a spacer, etc. (not shown) for holding and fixing the positions of the printed wiring board 10, the printed wiring board 20, and the connection board 30 by dropping or vibration. Has been. The lower housing 3 (or the upper housing 2) includes an antenna or the like (not shown).

  The printed wiring board 10 is a board in which wiring is formed on an insulating layer, and is mounted in the lower housing 3. A connector 11, a connector 12, and an electronic component 13 are mounted on the printed wiring board 10. The connector 11 is a connection member for electrical and mechanical connection with the connector 31 of the connection board 30, and is mounted on the surface of the printed wiring board 10 corresponding to the connector 31. The connector 12 is a connecting member for electrical and mechanical connection with the connector 22 of the printed wiring board 20, and is mounted on the surface of the printed wiring board 10 corresponding to the connector 22. The electronic component 13 is a component that constitutes an electronic circuit, and is mounted at a predetermined position on the printed wiring board 10 (see FIGS. 2 and 3). The printed wiring board 10 is electrically connected to the printed wiring board 20 via connectors 12 and 22. The printed wiring board 10 is electrically connected to the printed wiring board 40 via the connection board 30 and the wiring member 50.

  The printed wiring board 20 is a board in which wiring is formed on an insulating layer, and is mounted in the lower housing 3. A connector 22 and an electronic component 23 are mounted on the printed wiring board 20. The connector 22 is a connecting member for electrical and mechanical connection with the connector 12 of the printed wiring board 10, and is mounted on the surface of the printed wiring board 20 corresponding to the connector 12. The electronic component 23 is a component that constitutes an electronic circuit, and is mounted at a predetermined position on the printed wiring board 20 (see FIGS. 2 and 3). The printed wiring board 20 is provided with a pad portion 24 serving as a ground pattern on the surface of the printed wiring board 10 side other than a region where components are mounted (see FIG. 3). The pad portion 24 is configured to be in conductive contact with the conductive connection member 60. As the pad portion 24, for example, a part of the surface exposed as copper foil or a surface of the copper foil subjected to surface treatment by gold plating, nickel plating, silver coating or the like can be used. The pad portion 24 is provided at a position away from the connector 22. The printed wiring board 20 is electrically connected to the printed wiring board 10 via the connectors 22 and 12. The printed wiring board 20 is electrically connected to the printed wiring board 40 via the conductive connection member 60, the connection board 30, and the wiring member 50.

  The connection substrate 30 is a substrate in which wiring is formed on an insulating layer, and is mounted in the lower housing 3 (see FIG. 1). A connector 31 is mounted on the connection board 30. The connector 31 is a connection member for electrical and mechanical connection with the connector 11 of the printed wiring board 10, and is mounted on the surface of the connection board 30 corresponding to the connector 11. The connection substrate 30 has a pad portion 32 serving as a ground pattern formed on the surface on the printed wiring board 20 side (see FIG. 3). The pad portion 32 is configured to be in conductive contact with the conductive connection member 60. As the pad portion 32, for example, a part of the surface exposed as a copper foil, or a surface of the copper foil subjected to surface treatment by gold plating, nickel plating, silver coating or the like can be used. In order to stabilize the ground potential and suppress the generation of radiation noise, the connection board 30 preferably collects many signal pin arrangements and ground patterns of the pad portion 32 and the connector 31. The connection board 30 is electrically and mechanically connected to the wiring member 50 by connection means such as an FPC connector, a stacking connector, and ACF thermocompression bonding. The connection board 30 is electrically connected to the printed wiring board 10 via connectors 31 and 11. The connection board 30 is electrically connected to the printed wiring board 20 via the conductive connection member 60. The connection board 30 is electrically connected to the printed wiring board 40 via the wiring member 50.

  The printed wiring board 40 is a board in which wiring is formed on an insulating layer, and is mounted in the upper housing 2 (see FIG. 1). Although not shown in FIG. 1, electronic components constituting an electronic circuit are mounted on the printed wiring board 40. The printed wiring board 40 is electrically and mechanically connected to the wiring member 50 by connection means such as an FPC connector, a stacking connector, and ACF thermocompression bonding. The printed wiring board 40 is electrically connected to the printed wiring board 10 via the wiring member 50 and the connection board 30. The printed wiring board 40 is electrically connected to the printed wiring board 20 via the wiring member 50, the connection board 30, and the conductive connection member 60.

  The wiring member 50 is a member on which a wiring pattern such as a power supply pattern, a ground pattern, and a signal line is formed. For example, a flexible printed wiring board (FPC) or a fine coaxial cable can be used. The wiring member 50 may be a multilayer flexible printed circuit board or a rigid flexible circuit board in which a rigid circuit board and a flexible circuit board are configured as one board. The wiring member 50 is disposed inside the upper housing 2, the hinge portion 4, or the lower housing 3. The wiring member 50 is electrically and mechanically connected to the connection board 30 and the printed wiring board 40 by connection means such as an FPC connector, a stacking connector, and ACF thermocompression bonding.

  The conductive connection member 60 is a conductive elastic material (a material having an impact absorbing function) such as a tape, a gasket, or a rubber disposed between the pad portion 24 of the printed wiring board 20 and the pad portion 32 of the connection board 30. It is the member comprised by.

  According to the first embodiment, the following effects can be obtained.

  First, the ground potential of the printed wiring board 20 is connected to the printed wiring board 10 with respect to the printed wiring board 10 via the conductive connection member 60, the connection board 30, and the connectors 31 and 11. The ground potential of the substrate 20 can be configured to be equal to the ground potential of the printed wiring board 10. Further, since the printed wiring board 20 is connected to the printed wiring board 40 via the connection board 30 and the wiring member 50, the potential difference between the boards can be eliminated, a stable circuit operation can be obtained, and the reliability can be improved. improves. When the electronic circuit is divided into a plurality of printed wiring boards, the conventional configuration is connected to the printed wiring board 40 and the printed wiring board 20 through the wiring member 50 with the printed wiring board 10 as the center. Therefore, a potential difference is likely to occur between the printed wiring board 40 and the printed wiring board 20, but the first embodiment solves such a problem.

  Secondly, since the ground potential of each substrate in the housing can be configured to be equal, the ground potential of the printed wiring board 20 can be stabilized and can be prevented from acting as an antenna, the generation of radiation noise in the conductor can be suppressed, and the electronic circuit Operation is stable.

  Thirdly, since there is no need to add a component for suppressing emission of radiation noise, the mounting efficiency is improved, and an effect of preventing an increase in cost due to an increase in the number of mounted components can be obtained.

  Fourth, in place of the contact terminal with the printed wiring board 20 mounted on the printed wiring board 10, the pad portion 24 provided on the printed wiring board 20 and the pad portion 32 provided on the connection substrate 30 are electrically connected. Since the connection member 60 is used for connection, it is not necessary to secure a mounting area for the contact terminal.

  Fifth, since the mounting area and volume due to the addition of connecting components can be reduced by effectively using the portion where the pad portion 32 is formed on the connection substrate 30, a small and thin device can be configured. . Conventionally, in order to stabilize the ground potential of the printed wiring board 20, connecting parts are required on the printed wiring board 10, but in the first embodiment, such parts are not necessary.

  Sixth, the connection of the ground pattern between the printed wiring board 20 (pad portion 24) and the connection substrate 30 (pad portion 32) is performed by a conductive connection member 60 made of an elastic material such as tape, gasket, rubber, and the like. Therefore, the conductive connecting member 60 acts as a cushion, the stress on the printed wiring board 20 is relieved, and the stacking connector can be prevented from coming off. The reliability of the electronic circuit pattern and electronic components on the printed wiring board 20 can be prevented. Improves. In addition, the conventional stacking connector has a weak fitting force in the vertical direction, and there is a problem that the stacking connector may come off when the device is dropped. However, in the first embodiment, such a configuration is not necessary.

  Seventh, since the thickness of the conductive connecting member 60 can be freely changed in terms of configuration, the degree of freedom in design is also increased. Conventionally, the connection is made with the contact terminal, and when the height is changed from the configuration, it is necessary to change the design of the component itself, but in the first embodiment, such a design change is necessary. And not.

(Embodiment 2)
A portable communication device according to Embodiment 2 of the present invention will be described with reference to the drawings. FIG. 4 is a partial cross-sectional view schematically showing the configuration of the board assembly mounted on the lower housing in the mobile communication device according to Embodiment 2 of the present invention. FIG. 5 is an exploded perspective view schematically showing a configuration of a printed wiring board (20 in FIG. 4) mounted on the lower housing in the portable communication device according to the second embodiment of the present invention. FIG. 6 is an exploded perspective view schematically showing the configuration of the substrate assembly mounted on the mobile communication device according to Embodiment 2 of the present invention.

  In the mobile communication device according to the second embodiment, the printed wiring board 20 is electrically connected to the electrical signal line of the printed wiring board 10 via the connectors 14 and 27, the connection board 26, and the wiring member 25, and the printed wiring board is used. The difference from the first embodiment is that electrical connection with the ground wiring of the substrate 10 is performed via the connectors 14 and 27, the connection substrate 26, and the conductive connection member 61. Other configurations are the same as those of the first embodiment.

  The printed wiring board 10 is a board in which wiring is formed on an insulating layer, and is mounted in a lower housing (3 in FIG. 1). A connector 11, an electronic component 13, and a connector 14 are mounted on the printed wiring board 10. The connector 11 is a connection member for electrical and mechanical connection with the connector 31 of the connection board 30, and is mounted on the surface of the printed wiring board 10 corresponding to the connector 31. The electronic component 13 is a component that constitutes an electronic circuit, and is mounted at a predetermined position on the printed wiring board 10 (see FIGS. 4 and 6). The connector 14 is a connection member for electrically and mechanically connecting to the connector 27 of the connection board 26 in the printed wiring board 20, and is mounted on the surface of the printed wiring board 10 corresponding to the connector 27. The printed wiring board 10 is electrically connected to the printed wiring board 20 via the connectors 14 and 27, the connection board 26 and the wiring member 25, and is printed via the connectors 14 and 27, the connection board 26 and the conductive connection member 61. It is electrically connected to the substrate 20.

  The printed wiring board 20 is a board in which wiring is formed on an insulating layer, and is mounted in a lower housing (3 in FIG. 1). An electronic component 23 is mounted on the printed wiring board 20, and a connection board 26 is electrically connected via a wiring member 25. The electronic component 23 is a component that constitutes an electronic circuit, and is mounted at a predetermined position on the printed wiring board 20. On the printed wiring board 20, pads 24 and 29 serving as ground patterns are formed on the surface on the printed wiring board 10 side other than the area where components are mounted (see FIGS. 5 and 6). . The pad portion 24 is configured to be in conductive contact with the conductive connection member 60. The pad portion 29 is configured to be in conductive contact with the conductive connection member 61. As the pad portions 24 and 29, for example, a part of the surface exposed as copper foil or a surface of the copper foil subjected to surface treatment by gold plating, nickel plating, silver coating, or the like can be used. The printed wiring board 20 is electrically connected to the printed wiring board 10 via a wiring member 25, a connection board 26, and connectors 27 and 14. The printed wiring board 20 is electrically connected to the printed wiring board 10 via the conductive connection member 61, the connection board 26, and the connectors 27 and 14. The printed wiring board 20 is electrically connected to the printed wiring board (40 in FIG. 1) through the conductive connection member 60, the connection board 30, and the wiring member 50.

  The wiring member 25 is a member on which a wiring pattern such as a power supply pattern, a ground pattern, and a signal line is formed. For example, a flexible printed wiring board (FPC) or a fine coaxial cable can be used. The wiring member 25 may be a multilayer flexible printed circuit board, or a rigid flexible circuit board in which a rigid circuit board and a flexible circuit board are configured as one board. The wiring member 25 is disposed inside the lower housing (3 in FIG. 1). The wiring member 25 is electrically and mechanically connected to the connection board 26 and the printed wiring board 20 by connection means such as an FPC connector, a stacking connector, and ACF thermocompression bonding.

  The connection substrate 26 is a substrate in which wiring is formed on an insulating layer, and is mounted in the lower housing (3 in FIG. 1). A connector 27 is mounted on the connection board 26. The connector 27 is a connection member for electrically and mechanically connecting to the connector 14 of the printed wiring board 10, and is mounted on the surface of the connection board 26 corresponding to the connector 14. In the connection substrate 26, a pad portion 28 serving as a ground pattern is formed on the surface on the printed wiring board 20 side (see FIG. 6). The pad portion 28 is configured to be in conductive contact with the conductive connection member 61. As the pad portion 28, for example, a part of the surface exposed as copper foil or a surface of the copper foil subjected to surface treatment by gold plating, nickel plating, silver coating or the like can be used. In order to stabilize the ground potential and suppress the generation of radiation noise, the connection substrate 28 preferably collects a large number of signal pin arrangements and ground patterns of the pad portion 28 and the connector 27. The connection board 26 is electrically and mechanically connected to the wiring member 25 by connection means such as an FPC connector, a stacking connector, and ACF thermocompression bonding. The connection board 26 is electrically connected to the printed wiring board 10 via connectors 27 and 14. The connection board 26 is electrically connected to the printed wiring board 20 via the conductive connection member 61. The connection board 26 is electrically connected to the printed wiring board 20 via the wiring member 25.

  When the wiring member 25 is used, the contact resistance and the wiring resistance are increased by the wiring length of the signal line as compared with the first embodiment. Therefore, the circuit resistance is increased to the ground potential between the printed wiring board 20 and the printed wiring board 10. A voltage difference of minutes occurs. For this reason, the printed wiring board 20 works as an antenna, and the problem that radiation noise is likely to occur arises. Therefore, in the second embodiment, the pad portion 29 serving as a ground pattern is formed in a region other than the electronic component 23 mounted on the printed wiring board 20.

  According to the second embodiment, the same effects as those of the first embodiment and the following effects are obtained.

  For example, with respect to the mounting height position of the printed wiring board 20 in the lower housing (3 in FIG. 1), the component height of the connector (22 in FIG. 1) is the target height as in the first embodiment. When there is nothing, the printed wiring board 20 can be mounted at a target position in the lower housing (3 in FIG. 1) by adopting the configuration as in the second embodiment.

  A connection board 26 of the wiring member 25 is connected to the printed wiring board 10 by a connector 27. The printed wiring board 20 is connected to the printed wiring board 10 by the connector 27, and the pad part 29 provided on the printed wiring board 20 and the pad part 28 provided on the connection board 26 are connected by the conductive connection member 61. For this reason, since the ground potential of the printed wiring board 20 is stabilized and can be prevented from acting as an antenna, it is possible to suppress the generation of radiation noise.

  In addition, since the connection of the ground pattern between the printed wiring board 20 (pad portion 29) and the connection substrate 26 (pad portion 28) is performed by the conductive connection member 61 made of an elastic member such as tape, gasket, rubber, etc. The conductive connecting member 61 acts as a cushion to relieve stress on the printed wiring board 20 and prevent the stacking connector from coming off. The reliability of electronic circuit patterns and electronic components on the printed wiring board 20 can be improved. improves.

  Furthermore, since the thickness of the conductive connecting member 61 can be freely changed in terms of configuration, the degree of freedom in design is increased. Conventionally, contact terminals are used for connection. From the viewpoint of the configuration, when the height is changed, it is necessary to change the design of the component itself. In the second embodiment, such a design change is required. And not.

(Embodiment 3)
A mobile communication apparatus according to Embodiment 3 of the present invention will be described. FIG. 7 is an exploded perspective view schematically showing the configuration of the board assembly mounted on the mobile communication device according to Embodiment 3 of the present invention.

  In the third embodiment, the metal case portion 21 disposed around the electronic component 23 is mounted in place of the pad portion (24 in FIG. 3) of the first embodiment, and the pad portion 21a of the metal case portion 21 and the conductive connection member are mounted. 60 is connected. The metal case portion 21 is electrically connected to the ground pattern of the printed wiring board 20 by soldering or the like. Other configurations are the same as those of the first embodiment.

  For example, the metal case portion 21 of the external memory card slot (electronic component 23) may be electrically connected to the pad portion 32 of the connection substrate 30 via the conductive connection member 60. In this case, it is preferable that the metal case portion 21 is sufficiently soldered to the printed wiring board 20 and the metal case portion 21 is at the ground potential of the printed wiring board 20.

  According to the third embodiment, the same effects as in the first embodiment and the following effects are obtained.

  Since the metal case part 21 is electrically connected to the connection substrate 30 via the conductive connection member 60, the ground potentials of the printed wiring board 10, the metal case part 21, and the printed wiring board 20 can be configured to be equal.

  Further, since it is not necessary to secure the mounting area of the pad portion (see 24 in FIGS. 3 and 6) on the printed wiring board 20 as in the first and second embodiments, the mounting area efficiency on the printed wiring board 20 is improved. In addition, the device can be further reduced in size and thickness.

  Furthermore, since the ground potentials of the printed wiring board 10 and the printed wiring board 20 can be configured to be equal, the ground potential of the metal case portion 21 is stabilized, noise radiation from the metal case portion 21 can be suppressed, and resistance to external noise is also achieved. Improvement is possible. In particular, an external memory card slot or the like has a risk of electrostatic discharge when a memory card is inserted or removed for use. However, with the configuration shown in the third embodiment, the metal case portion 21 has a stable ground potential. Thus, it is possible to have a strong resistance against malfunction and destruction due to electrostatic noise.

It is sectional drawing which showed typically the structure of the portable communication apparatus which concerns on Embodiment 1 of this invention. It is the fragmentary sectional view which showed typically the structure of the board | substrate assembly mounted in the lower housing | casing in the portable communication apparatus which concerns on Embodiment 1 of this invention. It is the expansion | deployment perspective view which showed typically the structure of the board | substrate assembly mounted in the portable communication apparatus which concerns on Embodiment 1 of this invention. It is the fragmentary sectional view which showed typically the structure of the board | substrate assembly mounted in the lower housing | casing in the portable communication apparatus which concerns on Embodiment 2 of this invention. It is the expansion | deployment perspective view which showed typically the structure of the printed wiring board (20 of FIG. 4) mounted in the lower housing | casing in the portable communication apparatus which concerns on Embodiment 2 of this invention. It is the expansion | deployment perspective view which showed typically the structure of the board | substrate assembly mounted in the portable communication apparatus which concerns on Embodiment 2 of this invention. It is the expansion | deployment perspective view which showed typically the structure of the board | substrate assembly mounted in the portable communication apparatus which concerns on Embodiment 3 of this invention. It is sectional drawing which showed typically the structure of the board | substrate assembly mounted in the portable communication apparatus which concerns on the prior art example 1. FIG. It is sectional drawing which showed typically the structure of the board | substrate assembly mounted in the portable communication apparatus which concerns on the prior art example 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Portable communication apparatus 2 Upper housing | casing 3 Lower housing | casing 4 Hinge part 5 Battery 10 Printed wiring board 11, 12 Connector 13 Electronic component 14 Connector 20 Printed wiring board 21 Metal case part 21a Pad part 22 Connector 23 Electronic component 24 Pad part DESCRIPTION OF SYMBOLS 25 Wiring member 26 Connection board 27 Connector 28, 29 Pad part 30 Connection board 31 Connector 32 Pad part 40 Printed wiring board 50 Wiring member 60, 61 Conductive connection member 110 Printed wiring board 120 Printed wiring board 130 Leaf spring member 140 Pogo pin

Claims (5)

A first printed wiring board;
A second printed wiring board electrically connected to the first printed wiring board via a connector;
A connection board electrically connected to the first printed wiring board and the second printed wiring board;
With
The connection board is configured to relay electrical connection between the first printed wiring board and the second printed wiring board ;
The connection board and the second printed wiring board are disposed between the connection board and the second printed wiring board, and the connection board and the second printed wiring board are electrically connected to each other. A conductive connecting member;
The second printed wiring board is mounted with a metal case portion that is electrically connected to the ground pattern,
The portable communication device , wherein the conductive connection member is electrically connected to the second printed wiring board through the metal case portion . A first printed wiring board;
A second printed wiring board;
A first connection board electrically connected to the second printed wiring board and connected to the first printed wiring board via a connector;
A second connection board electrically connected to the first printed wiring board and the second printed wiring board;
With
The first connection board and the second connection board are configured to relay electrical connection between the first printed wiring board and the second printed wiring board ,
A material that is disposed between the first connection board and the second printed wiring board, electrically connects the first connection board and the second printed wiring board, and is conductive and has an impact absorbing function. A first conductive connecting member constituted by:
The second printed wiring board is mounted with a first metal case portion that is electrically connected to a ground pattern,
The portable communication device, wherein the first conductive connection member is electrically connected to the second printed wiring board through the first metal case portion . A material that is disposed between the second connection board and the second printed wiring board, electrically connects the second connection board and the second printed wiring board, and is conductive and has an impact absorbing function. The portable communication device according to claim 2 , further comprising a second conductive connection member configured by: 4. The portable communication device according to claim 3, wherein the second conductive connection member is connected to respective pad portions serving as a ground pattern in the second connection board and the second printed wiring board. The second printed wiring board is mounted with a second metal case portion that is electrically connected to the ground pattern,
The portable communication device according to claim 3, wherein the second conductive connection member is electrically connected to the second printed wiring board through the second metal case portion.

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