JPH10112589A - Substrate holder and printed circuit board mounting structure utilizing the substrate holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably mount a horizontal substrate to a vertical substrate by providing, to the upper surface of a plate type supporting section, a pawl type fixing section for holding and fixing a horizontal substrate and a projected positioning section. SOLUTION: A conic positioning section 640 is projected on the upper surface of a plate type supporting section forming a substrate holder 600. Moreover, a pawl for holding the horizontal substrate 300 is formed to the end portion of the fixing section 620 provided as the projection area at the upper surface of the supporting section. Since the positioning section 640 is inserted to the aperture 310 of the horizontal substrate 300 from the upper side of the positioning section 640, the horizontal substrate 300 can be positioned. In addition, the horizontal substrate 300 is held and fixed to the substrate holder 600 by holding them with the pawl and supporting section. Thereby, since the end portion not fixed by the vertical substrate 200 is supported by the substrate holder 600, the horizontal holder can surely be fixed to the vertical substrate 200 to prevent movement of the horizontal substrate 300 and poor connection of the circuit due to dropping impact and vibration.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a substrate holder and a wiring board mounting structure using the substrate holder. Specifically, a board holder for maintaining the wiring board in a substantially horizontal direction, substantially perpendicular to the wiring board arranged vertically, and for mounting the wiring board in a substantially horizontal direction using the board holder. And a wiring board mounting structure.

[0002]

2. Description of the Related Art In various electronic devices such as a television receiver and a radio receiver, a plurality of wiring boards are provided perpendicularly to each other in order to reduce the size. There is a case where another wiring board is arranged vertically and two wiring boards are arranged in parallel.

FIG. 3 is an explanatory view showing a conventional wiring board mounting structure. In the wiring board mounting structure shown in FIG.
A first wiring board (hereinafter, referred to as “main board”) 100 disposed horizontally has a second wiring board (hereinafter, referred to as “vertical board”) 200 substantially perpendicular to the main board 100. , The first connector 150. The first connector 150 includes a circuit (not shown) formed on the main board 100 and the vertical board 20.
A connection portion (not shown) for electrically connecting a circuit (not shown) formed at 0 is provided, and the circuit on the main board 100 and the circuit on the vertical board 200 are electrically connected.

Further, a third wiring board (hereinafter, referred to as a “horizontal board”) 300 is attached to the vertical board 200 substantially perpendicularly to the vertical board 200 by a second connector 250. The horizontal substrate 300 is disposed above the main substrate 100 with a space therebetween, substantially horizontally. Further, the second connector 250 is provided with a connection portion (not shown) for electrically connecting a circuit on the vertical substrate 200 and a circuit (not shown) on the horizontal substrate 300. Circuits on the horizontal substrate 300 are electrically connected.

[0005] After the video deck section 400 is mounted on the main board 100 on which the vertical board 200 and the horizontal board 300 are mounted, the tray chassis 5 is mounted.
00 and placed in the cabinet of the television receiver.

However, with such a structure,
Since the horizontal board 300 was only supported by the second connector 250, the horizontal board 300 was very unstable. Therefore, a slight impact may cause the horizontal board 300 to be detached from the second connector 250 or to be displaced, resulting in a poor electrical connection.

The present invention has been made in view of the above-mentioned drawbacks of the conventional example, and has as its object to stably attach the horizontal substrate to the vertical substrate.

[0008]

According to the present invention, there is provided a substrate holder comprising: a first wiring substrate disposed in a horizontal direction;
A second wiring board arranged substantially perpendicular to the wiring board of
A third wiring board arranged substantially perpendicular to the second wiring board, a first connector for electrically connecting a circuit on the first wiring board and a circuit on the second wiring board; A second connector for electrically connecting a circuit on the second wiring board and a circuit on the third wiring board, wherein the second wiring board and the third wiring board A board holder for supporting the third wiring board, wherein the third wiring board is fixed in the second connector and the third wiring board is arranged in a substantially horizontal direction; A claw-shaped fixing portion formed on the upper surface of the support portion and sandwiching and fixing the third wiring board; and a claw-shaped fixing portion formed on the upper surface of the support portion, and formed in an opening of the third wiring substrate. And a protruding positioning portion for positioning to be inserted.

The wiring board mounting structure according to the present invention comprises a first wiring board arranged in a horizontal direction, a second wiring board arranged substantially perpendicular to the first wiring board, and a second wiring board. A third wiring board arranged substantially perpendicular to the board, a first connector for electrically connecting a circuit on the first wiring board and a circuit on the second wiring board, A circuit on the wiring board and a second connector for electrically connecting the circuit on the third wiring board, wherein the second wiring board and the third wiring board are fixed by the second connector do it,
In the wiring board mounting structure in which the third wiring board is arranged in a substantially horizontal direction, an end of the third wiring board opposite to the second connector is supported by a board holder according to the present invention. And

At this time, it is preferable that a third connector for fixing the substrate holder and the second and third wiring boards is provided on a diagonal of the second wiring board.

Also, it is convenient to use the third connector having the same structure as that of the second connector.

[0012]

FIG. 1 is a schematic perspective view showing an embodiment of a wiring board mounting structure according to the present invention. FIG. 2 is a perspective view of a substrate holder according to an embodiment of the present invention used in the wiring board mounting structure. It is a schematic perspective view. The details will be described below with reference to the drawings.

FIG. 1 shows a wiring board mounting structure in a television receiver on which a so-called video deck is mounted, and a main board corresponding to a first wiring board on which a video deck section 400 is mounted. 100 is disposed substantially horizontally on the tray chassis 500. The main board 100 is positioned by penetrating a hole 110 opened in the main board 100 through a truncated conical projection 510 provided on the tray chassis 500.

In this wiring board mounting structure, a vertical board 200 corresponding to a second wiring board is disposed substantially perpendicular to the main board 100, and the first connector 150 connects the main board 100 and the vertical board. 200 is fixed. A circuit (not shown) on the main board 100 and a circuit (not shown) formed on the vertical board 200 are electrically connected by the first connector 150.

The third substrate is substantially perpendicular to the vertical substrate 200.
A horizontal substrate 300 corresponding to the wiring substrate of FIG. The vertical board 200 and the horizontal board 300 are fixed by a second connector 250 and a third connector 350 having the same structure.

The second connector 250 and the third connector 350 are the same as the second connector 250 used in the conventional example, and electrically connect the circuit of the vertical board 200 and the circuit of the horizontal board 300 to each other. In this embodiment, the circuit of the vertical board 200 and the circuit of the horizontal board 300 are electrically connected by the second connector 250. On the other hand, the third connector 3
Reference numeral 50 denotes a so-called dummy connector,
00 is used only for fixing the substrate to the vertical substrate 200.

The end of the horizontal board 300, the third connector 3
On the diagonal of the portion provided with 50, a substrate holder 60 is provided.
0 is provided. That is, the end of the horizontal substrate 300 is supported by the substrate holder 600.

The substrate holder 600 is made of, for example, plastic. As shown in FIG. 2, a support 610 having a trapezoidal shape, a fixing portion 620 for fixing the horizontal substrate 300, and a tray chassis 500 Projection 510
And a base 630 fixed to the base.

The support portion 610 is formed in a substantially inverted concave shape, and has a conical positioning portion 640 protruding from the top surface. Also, a part of the top surface of the support portion 610 is cut out, and a fixing portion 620 that is taller than the top surface portion of the support portion 610 protrudes therefrom. Also, the fixing part 62
In the reference numeral 0, a claw portion 621 for sandwiching the horizontal substrate 300 is formed at the tip. The claw portion 621 is formed in a mountain shape whose tip cross section is spread downward, and when the horizontal substrate 300 is fitted from above the claw portion 621, the claw portion 621 is elastically moved to the opposite side of the positioning portion 640. It is provided so that it can be spread slightly. Note that the fixing part 620 and the positioning part 640 are formed in the vicinity.

The positioning portion 64 is inserted into the opening 310 formed in the horizontal substrate 300 from above the positioning portion 640.
0 is inserted and the horizontal substrate 300 is positioned,
The horizontal substrate 300 is sandwiched between the claw portion 621 and the support portion 610, and the horizontal substrate 300 is
Will be fixed to.

The base 630 of the substrate holder 600 connects the pair of side portions of the support portion 610,
A screw hole 631 is opened. Such screw holes 63
1 is a portion for attaching the substrate holder 600 to the tray chassis 500, as shown in FIG.
It is screwed to the tip of.

The fixing portion 620 is not particularly limited as long as it can fix the horizontal substrate 300, and the horizontal substrate 300 may be fixed by, for example, screws. However, if the horizontal substrate 300 is fixed by such a claw 621, the protrusion 510
The horizontal substrate 300 can be easily fixed to the substrate holder 600 by pressing the horizontal substrate 300 from above onto the substrate holder 600 fixed to the substrate holder 600, which has the advantage that the mounting operation of the horizontal substrate 300 can be easily performed. is there.

As described above, in the present embodiment, the horizontal substrate 300 is firmly fixed to the vertical substrate 200 because the end not fixed to the vertical substrate 200 is supported by the substrate holder 600. Is done. Therefore, the horizontal substrate 300 does not easily move due to a drop impact, vibration, or the like, and problems such as poor connection between the circuit on the horizontal substrate 300 and the circuit between the vertical substrate 200 and floating circuit patterns are prevented. be able to.

Further, since the third connector 350 and the board holder 600 are located on the diagonal of the horizontal board 300, the horizontal board 300 can be stably fixed with a small number of components.

Further, the horizontal substrate 300 is a vertical substrate 2
Since the second connector 250 is fixed to the second connector 250 and the third connector 350, the second connector 250 and the third connector 350 can be fixed more stably.

Further, since the second connector 250 and the third connector 350 have the same structure, conventional components can be used in common. For this reason, it is not necessary to manufacture a new part, the cost can be reduced, and this is more convenient.

In the above embodiment, a so-called VCR integrated television receiver has been described.
It is needless to say that the present invention is not limited to this embodiment and can be applied to various electronic devices such as a radio receiver and a CD player.

The base 630 of the substrate holder 600
Is fixed to the projection 510 of the tray chassis 500, but may be fixed directly on the main board 100, or may be fixed to the cabinet of the television receiver or the VCR 400.

[0029]

According to the present invention, there is provided a substrate holder comprising: a first wiring substrate disposed in a horizontal direction; a second wiring substrate disposed substantially perpendicular to the first wiring substrate; A third wiring substrate arranged substantially perpendicular to the substrate;
A first connector for electrically connecting the circuit on the second wiring board to the circuit on the second wiring board; and electrically connecting the circuit on the second wiring board and the circuit on the third wiring board. And a second connector connected to the second wiring board, wherein the second wiring board and the third wiring board are fixed by the second connector, and the third wiring board is disposed in a substantially horizontal direction. The mounting structure is a substrate holder for supporting the third wiring board, the support being formed in a trapezoidal support portion and an upper surface of the support portion, and fixed by sandwiching the third wiring board. It has a claw-shaped fixing portion, and a positioning protruding positioning portion formed on the upper surface of the support portion and inserted into the opening of the third wiring board.

Thus, the third wiring board can be easily fixed to the board holder by positioning the third wiring board by the positioning portion and sandwiching the third wiring board between the claw-shaped fixing portions. Therefore, by using such a substrate holder, the free end of the third wiring board, which has not been fixed conventionally, is supported, and the third wiring board can be stably maintained horizontally. Further, if the board holder is fixed inside the first wiring board or the cabinet in which each wiring board is placed, the third wiring board can be more stably maintained.

The wiring board mounting structure of the present invention comprises a first wiring board arranged in a horizontal direction, a second wiring board arranged substantially perpendicular to the first wiring board, and a second wiring board. A third wiring board arranged substantially perpendicular to the board, a first connector for electrically connecting a circuit on the first wiring board and a circuit on the second wiring board, A circuit on the wiring board and a second connector for electrically connecting the circuit on the third wiring board, wherein the second wiring board and the third wiring board are fixed by the second connector do it,
In the wiring board mounting structure in which the third wiring board is arranged in a substantially horizontal direction, since the end of the third wiring board opposite to the second connector is supported by a board holder, Can be firmly fixed to the second wiring board. Therefore, the third wiring board does not easily shift or come off due to a drop impact or vibration, and electrical contact failure due to the second connector portion can be eliminated.

Further, if a third connector for fixing the substrate holder, the second wiring substrate and the third wiring substrate is provided on a diagonal of the third wiring substrate,
The third wiring board can be fixed more stably.

At this time, if the third connector has the same structure as that of the second connector, the third wiring board can be stably fixed at low cost without using the same parts. Can be.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a wiring board mounting structure of the present invention.

FIG. 2 is a schematic perspective view of a substrate holder according to an embodiment of the present invention used for the wiring substrate mounting structure.

FIG. 3 is a schematic perspective view showing a conventional wiring board mounting structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 100 Main board (1st wiring board) 150 1st connector 200 Vertical board (2nd wiring board) 250 2nd connector 300 Horizontal board (3rd wiring board) 350 3rd connector 600 Board holder 620 Horizontal Fixing part for fixing the substrate

Claims (4)

[Claims] A first wiring board arranged in a horizontal direction; a second wiring board arranged substantially perpendicular to the first wiring board; and a second wiring board arranged substantially perpendicular to the second wiring board. A third wiring board, a first connector for electrically connecting a circuit on the first wiring board and a circuit on the second wiring board, and a circuit on the second wiring board. A second connector for electrically connecting a circuit on a third wiring board, wherein the second wiring board and the third wiring board are fixed by the second connector; A wiring board mounting structure in which the wiring boards are arranged in a substantially horizontal direction, a board holder for supporting the third wiring board, the support being shaped like a trapezoid, and formed on an upper surface of the support;
A claw-shaped fixing portion for sandwiching and fixing the third wiring board; and a positioning protrusion-shaped positioning portion formed on an upper surface of the support portion and inserted into an opening of the third wiring board. A substrate holder comprising: 2. A first wiring board arranged in a horizontal direction, a second wiring board arranged substantially perpendicular to the first wiring board, and a second wiring board arranged substantially perpendicular to the second wiring board. A third wiring board, a first connector for electrically connecting a circuit on the first wiring board and a circuit on the second wiring board, and a circuit on the second wiring board. A second connector for electrically connecting a circuit on a third wiring board, wherein the second wiring board and the third wiring board are fixed by the second connector; In a wiring board mounting structure in which a wiring board is arranged in a substantially horizontal direction, an end of the third wiring board opposite to the second connector is supported by the board holder according to claim 1. Wiring board mounting structure. 3. A third connector for fixing the substrate holder, the second wiring substrate and the third wiring substrate on a diagonal of the second wiring substrate. The wiring board mounting structure according to claim 2. 4. The wiring board mounting structure according to claim 3, wherein the third connector has the same structure as the second connector.