JP2512734Y2 - Electronic device assembly structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for assembling electronic equipment in which a horizontally arranged wiring board and a vertically arranged wiring board are electrically connected at the same time when they are assembled in an instrument box. is there.

[0002]

2. Description of the Related Art For example, an electronic control device for a vehicle air conditioner includes a display plate arranged on the wall surface of an instrument panel (instrument panel) in a driver's seat and a wiring board supported on the bottom. Since the operation knob and window are arranged on the display board,
Of course, a wiring board including display elements and switches is also supported on the back side of the display board. In the above-described electronic device assembly structure, smooth operation cannot be obtained unless the window of the display board or the operation knob is aligned with the mounting position of the display element of the wiring board or the switch. The wiring board on the bottom of the instrument box and the wiring board on the back side of the display board are electrically connected by a connector connected to each wiring board. If there is an error in the mounting of the plate, the connector will not engage.

In the assembling structure of electronic equipment disclosed in Japanese Utility Model Laid-Open No. Sho 60-190086, a wiring board is supported at the bottom of the instrument box, and horizontally extends behind a display plate that closes the front opening of the instrument box. A groove member is provided, the groove member of the display board is engaged with the front edge of the wiring board, and at the same time, the pin of the connector supported on the back side of the display board is inserted into the pin hole of the connector supported by the wiring board. In this assembly structure, the wide groove member on the back side of the display plate narrows the internal space of the instrument box, and there is a problem that the indicator lamp and the operation knob cannot be arranged at the lower edge of the display plate.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to effectively utilize the entire surface of a display board for disposing a display element and an operating knob, and a wiring board and an instrument box supported by the display board. The electrical connection with the wiring board supported by can be smoothly reached at the same time as the display board is assembled to the open end of the instrument box.
An object is to provide an assembly structure of an electronic device.

[0005]

In order to achieve the above-mentioned object, the structure of the present invention has a display plate for closing the front open end of the instrument box, which is provided with at least a window and an operation knob, and is provided on the back side of the display plate. A bolt inserted into a long hole of the second wiring board so that the display element, the switch, and the first wiring board supporting the connector are coupled, and the rear end of the second wiring board is horizontally movable to the bottom of the instrument box. To support the connector on the front end of the second wiring board,
The protrusion formed on the front edge of the second wiring board is engaged with the opening provided on the first wiring board, and at the same time, the connectors of the first and second wiring boards are engaged with each other.

[0006]

According to the present invention, the first wiring board is supported on the back side of the display board, while the second wiring board is supported by the rear end of the second wiring board so as to be horizontally movable on the bottom of the instrument box. When the projecting piece protruding from the front edge of the wiring board is engaged with the opening of the first wiring board,
The connector is automatically connected. In that state, the rear end of the second wiring board is fastened to the bottom of the instrument box with a bolt. Therefore, the assembly of the first wiring board and the second wiring board is easy, there is no mounting error, and the electrical connection of both wiring boards can be smoothly achieved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a side sectional view of an assembly structure of an electronic device according to the present invention, FIG. 2 is a plan view showing a mutual relationship of the wiring boards, and FIG. 3 is a front view of a first wiring board. . The display plate 2 that closes the front opening of the instrument box 3 includes a window 8 and an operation knob 9. Ribs 2a protruding from both sides of the back surface of the display board 2
Wiring board 12 is joined to (FIG. 2) by bolts (not shown). A display element 13, a connector 14, for example, a push button type switch 15 are respectively supported on the front surface of the wiring board 12, the display element 13 is fitted into the window 8, and the switch 15 is engaged with the operation knob 9. Display element 13 and switch 15
Is connected to the connector 14. The connector 14 is a female pin connector and is fitted with a male connector 22 on a wiring board 21 described later. As shown in FIG. 3, a plurality of openings 16 are provided in the central portion of the wiring board 12 at right and left intervals.

As shown in FIG. 1, a plurality of columns 6 are integrally formed on the bottom wall 5 of the instrument box 3, and a wiring board 21 is formed on the columns 6.
The rear end portion is placed horizontally and supported by the bolt 24. To be able to move the wiring board 21 forward and backward and left and right,
The hole through which the bolt 24 is inserted is a long hole 25 (FIG. 2).
The seat plate 23 is placed on the upper side of the long hole 25, and the bolt 24 is screwed onto the support 6 through the seat plate 23 and the long hole 25 of the wiring board 21 by a tool inserted from the hole 4 of the top wall of the instrument box 3. Wiring board 2
The wiring of the control circuit provided in 1 is connected to the connector 22 supported on the front end of the wiring board 21. A plurality of projecting pieces 21 a are formed on the front edge of the wiring board 21 and can be engaged with the openings 16 of the wiring board 12.

The electronic device assembly structure according to the present invention is assembled as follows. First, the wiring board 12 is connected to the display board 2 so that the wiring board 21 can be moved horizontally on the support column 6 by the bolt 2.
Loosely supported by 4. When the display board 2 is engaged with the open end of the instrument box 3, the opening 16 of the wiring board 12 is engaged with the projecting piece 21a of the wiring board 21, and at the same time, the pin 22a of the connector 22 is engaged.
Are inserted into the pin holes of the connector 14 to achieve electrical continuity. At this time, the wiring board 21 moves slightly to move the opening 16
And promotes smooth and smooth engagement of the protruding piece 21a. Wiring board 1
2 is connected to the open end of the instrument box 3 with a bolt, and finally the bolt 24 is fastened with a tool inserted through the hole 4 in the top wall of the instrument box 3, whereby the wiring board 12 and the wiring board 21 are at predetermined positions. Be combined with. Since the wiring board 12 is coupled to the display board 2 in advance, the display element 13 is accurately engaged with the window 8 and the switch 15 is accurately engaged with the operation knob 9.

[0010]

As described above, according to the present invention, at least a window and an operation knob are provided on the display plate for closing the front open end of the instrument box, and the display element, the switch and the connector are supported on the back side of the display plate. 1 wiring board is connected, the rear end of the second wiring board is horizontally movable to the bottom of the instrument box, and is supported by the bolts inserted into the elongated holes of the second wiring board. The connector is supported on the front end portion, and the projecting piece formed on the front end edge of the second wiring board is engaged with the opening provided on the first wiring board, and at the same time, the connectors of the first wiring board are engaged with each other. Is something
By supporting the first wiring board on the back side of the display board, the display element and the switch are accurately positioned with respect to the window of the display board and the operation knob, and a smooth operation can be obtained.

Electrical connection by the connector between the first wiring board and the second wiring board can be smoothly achieved at the same time as the display board is assembled to the open end of the instrument box.

In this case, the connector is only guided by the engagement between the opening of the first wiring board and the protrusion of the second wiring board, and does not sacrifice the internal space of the instrument box. The entire surface of the display board can be effectively used for arranging the operation knobs.

[Brief description of drawings]

FIG. 1 is a side sectional view of an assembly structure of an electronic device according to the present invention.

FIG. 2 is a plan view showing an engaged state of first and second wiring boards.

FIG. 3 is a front view of a first wiring board.

[Explanation of symbols]

2: Display board 3: Instrument box 8: Window 9: Operation knob 1
2, 21: Wiring board 13: Display element 14, 22: Connector 15: Switch 16: Opening 21a: Projection piece 2
4: Bolt 25: Long hole

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location H05K 1/14 H05K 1/14 D

Claims (1)

(57) [Scope of utility model registration request] 1. A display plate for closing the front open end of the instrument box is provided with at least a window and an operation knob, and a first wiring board for supporting a display element, a switch and a connector is connected to the back side of the display board. The rear end of the second wiring board is horizontally movable to the bottom of the instrument box, supported by bolts inserted through the long holes of the second wiring board, and the connector is supported on the front end of the second wiring board. The projecting piece formed on the front edge of the second wiring board is engaged with the opening provided on the first wiring board, and at the same time, the connectors of the first and second wiring boards are engaged with each other. Electronic device assembly structure.