JP2012129246A - Electronic apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus which can reduce force applied to a board-to-board connector incorporated inside and simplify an assembly process.SOLUTION: An electronic apparatus comprises a first board 102, a second board 106 disposed vertical to a face of the first board 102, a first board-to-board connector 103 disposed on the first board 102, a second board-to-board connector 107 disposed on the second board 102 and connected to the first board-to-board connector 103, a first frame 101 fixing the first board 102, a second frame 104 fixing the second board 106 and a board holding member 105 fixed to the second frame 104. The second board 106 includes fixing parts 112, 113. The second fixing part 112 farthest from the second board-to-board connector 107 in a direction along which the second board 106 approaches the first board 102 is fixed to the second frame 104 and the fixing part 113 is fixed to the board holding member 105.

Description

  The present invention relates to an electronic device, and more particularly to a structure for connecting a substrate to each other inside the electronic device.

  In recent years, electronic devices have been required to have many functions. For this reason, the number of electric circuits has increased, and the number of communication lines from substrate to substrate has also increased. Therefore, there is a structure in which a board (hereinafter referred to as “first board”) and another board (hereinafter referred to as “second board”) arranged in a vertical direction on the board surface of the first board are connected by a board-to-board connector. Proposed.

  However, if vibration or impact is applied to the electronic device, such as dropping the electronic device, a force is applied to the first board and / or the second board, and the force concentrates on the board-to-board connector, causing damage or poor connection. There is a problem of causing.

  Therefore, the second board connected in the vertical direction by the board-to-board connector with respect to the horizontally arranged first board is sandwiched between the two holding members, and between the wall surface of the housing for housing these and each holding member. There has been proposed a structure in which an elastic body is disposed to hold down the second substrate (see Patent Document 1). In this structure, the force applied to the board-to-board connector is reduced by blocking the vibration by the elastic body.

JP-A-11-26962

  Here, the second substrate is fixed to the housing in advance, and the housing is incorporated into the housing of the electronic device (in this case, the casing of the electronic device main body), and at the same time, the second substrate is connected to the first substrate. If possible, the assembly process of the electronic device can be simplified to improve productivity. However, in the configuration of the conventional technology described above, the holding member and the elastic body are not fixed to the casing, and thus the position of the second substrate cannot be fixed to the casing. Further, since the holding member is merely sandwiched between the second substrate and the housing and is not securely fixed, the ground of the second substrate cannot be connected to the housing or the housing of the electronic device. There is a problem.

  An object of the present invention is to provide an electronic device that can reduce the force applied to a board-to-board connector incorporated therein and simplify the assembly process.

  An electronic apparatus according to the present invention includes a first substrate, a second substrate disposed vertically on the substrate surface of the first substrate, and a first substrate provided on the substrate surface of the first substrate. A board-to-board connector and a second board provided on the board surface of the second board and connected to the first board-to-board connector by bringing the second board closer to the first board Two board-to-board connectors, a first casing that fixes the first board, a second casing that fixes the second board, and a substrate holding that is fixed to the second casing The second substrate has a plurality of fixing portions, and the second substrate has a plurality of fixing portions in a direction in which the second substrate approaches the first substrate. The second substrate is the second housing at a fixed portion farthest from the second board-to-board connector. The fixed, the fixing portion whose distance from the second board-to-board connector except for the fixing portion are away characterized in that it is fixed to the substrate holding member.

  According to the present invention, it is possible to reduce the force applied to the board-to-board connector, thereby ensuring high reliability. Moreover, since the assembly process of an electronic device can be simplified, productivity can be improved.

It is a disassembled perspective view which shows the internal structure of the electronic device which concerns on embodiment of this invention. It is a figure which shows the one aspect | mode in the assembly process of the electronic device shown in FIG. It is a perspective view which shows the state after completion | finish of the assembly process of the electronic device shown in FIG. It is a figure which shows simply a structure when an electronic device is seen from the Z1 direction shown by FIG.

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

  FIG. 1 is an exploded perspective view showing an internal structure of an electronic apparatus according to an embodiment of the present invention. FIG. 2 is a diagram illustrating an aspect during the assembly process of the electronic device illustrated in FIG. 1, that is, a diagram illustrating a state during the assembly. Note that FIG. 1 shows a digital video camera as an example of an electronic device and shows an internal structure thereof, but the electronic device according to the invention is not limited to this.

  The electronic device shown in FIGS. 1 and 2 includes a first substrate 102 and a second substrate 106 arranged perpendicular to the substrate surface (main surface) of the first substrate 102. A first board-to-board connector 103 connected to the second board 106 is disposed on the board surface of the first board 102. The first board 102 has a first board-to-board connector 103 connected to the second board 106. A second board-to-board connector 107 connected to the board-to-board connector 103 is disposed. Note that the first board-to-board connector 103 and the second board-to-board connector 107 can be connected by moving the second board 106 in the X1 direction, which is a direction in which the first board 102 is approached. Is arranged. The detailed configuration of the first substrate 102 and the second substrate 106 will be described as appropriate when the assembly configuration of the electronic device described below is described.

  In the electronic device assembly process, first, as shown in FIG. 1, the first substrate 102 is fixed to the first housing 101 that is a part of the housing of the electronic device with screws 110. For this operation, the first substrate 102 is formed with a hole through which the screw 110 is inserted. On the other hand, a substrate holding member 105 for holding the second substrate 106 is fixed to the second housing 104 which is a part of the housing of the electronic device with a screw 110.

  The substrate holding member 105 is configured to have appropriate elasticity, and is preferably configured of a conductive material such as metal. As a result, when an external force is applied to the second substrate 106 due to the electronic device falling or the like, the substrate holding member 105 is flexed by elasticity, thereby reducing the force applied to the second substrate-to-substrate connector 107. be able to. In addition, the ground (not shown) of the second substrate 106 can be easily connected to the second housing 104 or another ground portion (not shown) separately provided on the second housing 104. Become.

  On the second substrate 106, as a plurality of fixing portions, the fixing portion 112 is formed in one place and the fixing portions 113 are formed in two places. Of the fixing portions 112 and 113, the fixing portion 112 that is the farthest from the second board-to-board connector 107 in the X1 direction is fixed to the second housing 104 with the screw 108 via the board holding member 105. . On the other hand, the fixing portion 113 which is the remaining fixing portion excluding the fixing portion 112 is fixed to the substrate holding member 105 using the screws 109.

  Next, as shown in FIG. 2, the first board 101 and the second board 104 are fitted together, and at the same time, the first board-to-board connector 103 and the second board-to-board connector 107 are connected. . In order to realize this assembly process, the first casing 101 is provided with ribs parallel to the X1 direction as the first guiding portion 201, and the second casing 104 has the first guiding portion 201. The 2nd guidance part 202 which pinches | interposes is provided.

  The first guiding unit 201 and the second guiding unit 202 start guiding before the first board-to-board connector 103 and the second board-to-board connector 107 contact each other. Thus, even when the connection portion between the first board-to-board connector 103 and the second board-to-board connector 107 is not visible, the first board-to-board connector 103 and the second board-to-board connector 107 can be securely connected. Assembly can be performed so that Note that the shapes of the first guiding unit 201 and the second guiding unit 202 are not limited to the illustrated shapes, and the first casing 101 and the second casing 104 are parallel in the X1 direction. Any shape that can be guided to

  FIG. 3 is a perspective view showing a state after the assembly process of the electronic device is completed. FIG. 4 is a diagram schematically showing the structure when the electronic device is viewed from the Z1 direction shown in FIG. When a force is applied to the second board 106, a force is applied to the second board-to-board connector 107. At this time, since the second substrate 106 is fixed to the substrate holding member 105 by the screw 109 at the fixing portion 113 farthest from the second substrate-to-board connector 107, the substrate holding member 105 bends due to elasticity. As a result, the force applied to the second board-to-board connector 107 is reduced, and it is possible to prevent a connection failure between the first board-to-board connector 103 and the second board-to-board connector 107.

  In addition, since the fixing portion 112 of the second substrate 106 is fixed to the second housing 104 with the screw 108, the second substrate 106 is accurately positioned with respect to the second housing 104. And can be fixed. Thereby, the assembly process of an electronic device can be simplified. Further, the substrate holding member 105 is made of a conductive material such as metal, whereby the ground of the second substrate 106 is connected to the second casing 104 or a ground portion separately provided on the second casing 104. be able to.

  Although the present invention has been described in detail based on preferred embodiments thereof, the present invention is not limited to these specific embodiments, and various forms within the scope of the present invention are also included in the present invention. included.

DESCRIPTION OF SYMBOLS 101 1st housing | casing 102 1st board | substrate 103 1st board | substrate to board connector 104 2nd housing | casing 105 board | substrate holding member 106 2nd board | substrate 107 2nd board | substrate to board connector 112,113 fixing | fixed part

Claims (2)

A first substrate;
A second substrate disposed vertically on a substrate surface of the first substrate;
A first board-to-board connector provided on a board surface of the first board;
A second board-to-board connector provided on the board surface of the second board and connected to the first board-to-board connector by bringing the second board closer to the first board When,
A first housing for fixing the first substrate;
A second housing for fixing the second substrate;
A board holding member fixed to the second housing, and an electronic device comprising:
The second substrate has a plurality of fixing portions, and the distance from the second substrate-to-board connector among the plurality of fixing portions in a direction in which the second substrate approaches the first substrate. The second substrate is fixed to the second casing at a fixed portion where the distance is away from the second housing, and the fixed portion excluding the fixed portion farthest from the second board-to-board connector is the substrate holding member An electronic device characterized by being fixed to.   The electronic apparatus according to claim 1, wherein the substrate holding member is made of a conductive material.

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