JP4435773B2 - Portable wireless communication device and connection member - Google Patents

Description

The present invention relates to a portable wireless communication device and a connection member, and more particularly to a portable wireless communication device in which two housings are connected to each other via a connecting portion so as to be opened and closed, and a connection member used for connection between the two housings.

As a result of the advancement of multi-functionality, portable wireless communication devices have been forced to realize higher and higher mounting density. For this reason, in the case of a portable wireless communication device having a two-case configuration, which is the mainstream, the main substrates in the upper and lower cases (hereinafter, the respective substrates are referred to as an upper main substrate and a lower main substrate).
) To mount the component parts, and an additional board (hereinafter referred to as a sub-board) is provided to mount the component parts that cannot fit on the upper main board and the lower main board. . In this case, the upper main board and the lower main board are connected by a flexible board (hereinafter referred to as FPC) provided through a connecting portion, and a connector for that purpose is provided on each main board.

On the other hand, the connection between the sub board and the upper main board and the lower main board is connected by providing a dedicated connector and cable (or FPC), respectively, or the harness is bifurcated from one plug. There is a method of connecting using a so-called piggyback-type connector that can be connected using a cable or a superimposing connection. However, these methods have a problem that the number of connectors increases and the effective mounting area of each board decreases, or a connector with a complicated structure becomes necessary.

Therefore, as an alternative connection method between the sub-board and the main board, a method using an FPC for connection between the upper main board and the lower main board can be considered. For this purpose, the connection destination branches,
Although it is necessary to use an FPC having three or more connectors, the invention of using such a branched FPC has been made from another viewpoint and purpose so far (for example, Patent Document 1).
reference. ).

In the invention disclosed in Patent Document 1, one side of the FPC is broadly branched so that the FPC is wound once in a symmetrically configured connecting portion and the two cases are opened and closed. This is to relieve the mechanical stress applied to the FPC.
Japanese Patent Laid-Open No. 2001-267696 (second and third pages, FIG. 1)

If the FPC can be branched and connected to the sub-board, it is not necessary to use an extra number of connectors or a connector having a complicated shape, and it can be expected that the mounting form is simplified and the reliability is improved. The invention disclosed in Patent Document 1 described above must be opened and branched so that the FPC can be wound once in the connecting portion, and is mounted in such a manner that the main board and the sub board overlap. In some cases, it is not suitable for solving the above problems.

Therefore, the present invention uses a connecting member such as an FPC for connecting the main boards also for connecting the sub-boards, so that the portable wireless communication apparatus having a two-case structure that enables simple mounting and connection and the connection. An object is to provide a member.

In order to achieve the above object, a portable wireless communication device according to the present invention includes a first housing incorporating a first substrate and a second housing incorporating a second substrate as a connecting portion. A body that is openably and closably connected, a connecting member that is provided through the connecting portion and connects the first substrate and the second substrate, and the first member via the connecting member. And a functional block connected to the substrate, the second substrate, or both.

According to the present invention, an effective mounting area of each board can be ensured by connecting the boards of the portable wireless communication device having a two-chassis configuration with a simple shape and using a minimum number of connectors. .

  Embodiments of the present invention will be described below with reference to the drawings.

Embodiment 1 of the present invention will be described below with reference to FIGS. FIG. 1 is a side view of a housing of the portable wireless communication apparatus according to the first embodiment of the present invention. In this figure, an upper main board 2 built in an upper housing 1 and a lower main board 4 built in a lower housing 3 are connected by an FPC 6 provided through a connecting portion 5. The lower housing 3 is provided with a sub-board 7 for mounting components that cannot be accommodated on the upper main board 2 and the lower main board 4, and the FPC 6 is branched and folded to connect to the sub-board 7. The upper main board 2 and the lower main board 4 are electrically connected. Reference numeral 8 denotes an antenna.

FIG. 2 is a diagram for explaining the connection between the lower main board 4 and the sub board 7 of the portable radio communication apparatus according to the first embodiment of the present invention. By fitting the plug-side connector 10 attached to the lower side of the FPC 6 to the seat-side connector 9 provided on the lower main board 4, the lower main board 4 and the FPC
6 and the other end (not shown) of the FPC 6 is connected to the upper main board 2 by the same configuration.

On the other hand, the branch portion 11 formed on the right side of the FPC 6 is bent upward, and the tip of the branch portion 11 is fitted to the seat-side connector 12 attached to the sub-board 7, whereby the sub-board 7
Are connected to the FPC 6.

FIG. 3 is a development view of the FPC 6 that is the connection member according to the first embodiment of the present invention. The lower part of the FPC 6 in the drawing is formed so that a branching part 11 protrudes to the right side of the plug-side connector 10 fitted to the seat-side connector 9 of the lower main board 4. The right end in the figure is fitted with the seat-side connector 12 of the sub-board 7. In this case, similarly to the connection with the lower main board 4,
A plug-side connector may be attached to the tip of the branch portion 11 or may be used as a so-called FPC connector without attaching the plug-side connector so as to fit in a narrow mounting space.

A plug-side connector 13 for connecting to a seat-side connector (not shown) of the upper main board 2 is attached to the upper part of the FPC 6 in the drawing. In this way, the upper main board 2,
Since the lower main board 4 and the sub board 7 are all connected to each other only by the FPC 6, when viewed from one board, connectors are provided for the two connection destinations (boards), harness branching and piggybacking. There is no need to use special connectors such as shapes.

FIG. 4 shows connection of electrical lines (for example, power supply, ground, clock signal lines, etc., hereinafter referred to as a common line) shared among the upper main board 2, the lower main board 4 and the sub board 7. It is a figure explaining the shape of the pattern on FPC6 to be used.

In this figure, a ground line pattern 14 provided between a plug-side connector 13 connected to the upper main board 2 and a plug-side connector 10 connected to the lower main board 4 branches at a branch point 15. Wiring is performed up to the connection end with the sub-substrate 7 through the branch portion 11. Thus, by branching the common line pattern on the FPC 6, the plug-side connector 10
Alternatively, since it is not necessary to allocate extra connector terminals to the same line in the plug-side connector 13, even when the sub-board 7 is connected, the number of connector terminals is not increased and the size of the connector is not increased.

According to the first embodiment of the present invention, even if a sub-board is provided in addition to the main board of the upper and lower cases of the portable wireless communication device having a two-case structure, the number of connectors and terminals attached to the main board are not increased. Each substrate can be simply connected.

Hereinafter, a second embodiment of the present invention will be described with reference to FIG. FIG. 5 is a development view of the FPC 16 that is the connection member according to the second embodiment of the present invention. FPC 6 in Embodiment 1 of FPC 16
The difference in shape and configuration is that the distal end portion of the branching portion 17 is enlarged and a portion 18 for mounting a functional block corresponding to the portion mounted on the sub-board 7 is provided in the first embodiment. .
Since the shape and configuration of the other parts are the same as those of the FPC 6 and the plug-side connectors 10 and 13 are the same, the same reference numerals are used. By configuring the FPC 16 in this way, there is no need to provide a sub-board (sub-board 7 in FIG. 2), and the number of components such as connectors can be further reduced, so that there is an advantage that reliability is improved.

According to the second embodiment of the present invention, the mounting efficiency and reliability can be further improved by eliminating the need for the sub-board.

The side view of the housing | casing of the portable radio | wireless communication apparatus which concerns on Example 1 of this invention. The figure explaining the board-to-board connection inside the lower housing | casing of the portable radio | wireless communication apparatus which concerns on Example 1 of this invention. The expanded view of the connection member which concerns on Example 1 of this invention. The figure explaining the shape of the pattern for common lines on the connection member which concerns on Example 1 of this invention. The expanded view of the connection member which concerns on Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Upper housing | casing 2 Upper main board 3 Lower housing 4 Lower main board 5 Connection part 6, 16 FPC
7 Sub-board 8 Antenna 9, 12 Seat side connector 10, 13 Plug side connector 11, 17 FPC branch 14 Ground line pattern 15 Branch point 18 Part where functional block is mounted

Claims (6)

A main body in which a first housing containing a first substrate and a second housing containing a second substrate are connected via a connecting portion so as to be openable and closable;
A connecting member provided through the connecting portion and connecting between the first substrate and the second substrate;
A functional block connected to the first substrate or the second substrate or both via the connection member;
A power source commonly connected to all of the first substrate, the second substrate and the functional block;
The portable radio communication apparatus, wherein the ground or signal line is connected in common by a connection pattern formed on the connection member and branched at the connection member. A main body in which a first housing containing a first substrate and a second housing containing a second substrate are connected via a connecting portion;
A connecting member provided through the connecting portion and connecting between the first substrate and the second substrate;
A functional block connected to the first substrate or the second substrate or both via the connection member;
A power source commonly connected to all of the first substrate, the second substrate and the functional block;
The portable radio communication apparatus, wherein the ground or signal line is connected in common by a connection pattern formed on the connection member and branched at the connection member. 3. The functional block according to claim 1, wherein an electrical component other than the electrical component mounted on the first substrate or the second substrate is mounted on the substrate. Portable wireless communication device. A connection member used in a portable wireless communication device in which a first housing and a second housing are connected to each other through a connecting portion so as to be opened and closed.
A first connecting portion that connects between the first substrate built in the first housing and the second substrate built in the second housing via the connecting portion;
Branching from the first connection part, and having a second connection part to which a functional block is connected at the tip,
The first substrate, the second substrate, or both of them are connected to the functional block using the first connection portion and the second connection portion, and the first substrate, A power supply, a ground, or a signal line commonly connected to all of the second substrate and the functional block is commonly connected by a connection pattern formed in the first connection portion and the second connection portion. A connecting member. A connection member used for a portable wireless communication device in which a first casing and a second casing are connected via a coupling portion,
A first connecting portion for connecting the first substrate built in the first housing and the second substrate built in the second housing through the connecting portion;
Branching from the first connection part, and having a second connection part to which a functional block is connected at the tip,
The first substrate, the second substrate, or both of them are connected to the functional block using the first connection unit and the second connection unit, and the first substrate, A power supply, a ground, or a signal line that is commonly connected to all of the second substrate and the functional block is commonly connected by a connection pattern formed in the first connection portion and the second connection portion. A connecting member. The connection member according to claim 4 or 5, wherein the functional block is mounted on the second connection portion.

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