JPH0888483A - Printed board supporting structure - Google Patents

Abstract

PURPOSE: To simplify the supporting structure of small circuit board connected vertically to a main circuit board which is installed borizontally, for example, in a CCTV camera system. CONSTITUTION: Inside a case which is made by putting a cover 2 on a bottom plate 1, a main circuit board 3 is placed horizontally and a plurality of small circuit boards 4, 5 are erected on the main board. In such a case, a holder which has pieces for close connection 8, 9 on its both ends is installed and the holder 7 is bridged between upper edges of the boards 4, 5 and the pieces for close connection are connected closely to the inside of the cover and thereby the boards 4, 5 are supported. A projection is made in each of the boards 4, 5 and insertion holes to correspond to the projections are made in the holder. By inserting the projections of the boards 4, 5 into the insertion holes, the 4, 5 can be fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board support structure, and more particularly, in a CCTV camera device, for example, a plurality of sub boards are erected (vertically connected) on a main board in a horizontal position. The present invention relates to a support structure of the same sub-board in the device.

[0002]

2. Description of the Related Art In a CCTV camera device, as shown in a perspective view (A) of FIG. 2 and a rear view (B) of FIG. In some cases, a plurality of sub-boards 12 and 13 may be provided upright. In this case, since the upper parts of the sub-boards 12 and 13 are free, it is necessary to fix the upper parts by some method in order to prevent damage to the boards due to vibration or the like. Conventionally, as a fixing method thereof, as shown in the same figure, both sides of the chassis 14 are raised (bent) and the holder 15 is passed over them. Then, the sub-board 12 and the like are provided with a protruding portion a at a position in contact with the holder 15, and the holder 15 is provided with an insertion hole b, and the protruding portion a is inserted into the insertion hole b, and in that state, the holder 15 The chassis
Secure to 14 with screws 16. (B) The figure shows the fixed state.

[0003]

However, the above-described conventional fixing method has a drawback that the space for the main board is narrowed because both sides of the chassis are bent because it is necessary to fix the holder 15. On the other hand, the CCTV camera device is required to be further downsized. In pursuit of this miniaturization, it is necessary to effectively use the space. Further, it is necessary to eliminate screwing work as much as possible and improve workability.
The present invention has been made in view of the above drawbacks and the like, and an object of the present invention is to provide a board supporting structure that does not require a conventional chassis starting portion and screwing work.

[0004]

According to the present invention, a main board is placed in a horizontal position in a housing formed by covering a bottom plate with a cover, and a plurality of sub-boards are erected on the main board at the horizontal position. In this case, the sub-board is provided with a holder provided with contact pieces at both ends, the holder is bridged between the upper ends of the sub-boards, and the contact pieces are brought into close contact with the inside of the upper cover. To provide a printed circuit board support structure adapted to support the substrate.

[0005]

With the above-mentioned structure, the holder itself is fixed in close contact with the inside of the cover forming the housing. In addition, each sub-board is fixed by inserting the protrusion on the top of each board into the insertion hole of the holder. Therefore, each sub-board is fixed after the cover is mounted in a normal state.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A printed circuit board support structure according to the present invention will be described below with reference to the drawings. 1A and 1B show an embodiment of a printed circuit board supporting structure when the present invention is applied to a CCTV camera device. FIG. 1A is a perspective view and FIG. 1B is a rear view. In the figure, the case (cabinet) has a structure in which the cover 2 is covered (capped) on the bottom plate 1. In this case, the joint portions a and b between the bottom plate 1 and the cover 2 are in close contact. A panel 1a is integrally provided on the bottom plate 1, and the panel 1a side is the lens side (front surface) of the CCTV camera device.

The main board in which the sub-boards are erected is housed in the housing of this structure, but in the present embodiment, the main board 3 in the horizontal position has two sub-boards 4 and 5 erected. To do. The sub-board 5 is housed in the shield case 6. The shield case 6 is used for the purpose of preventing an unnecessary oscillation phenomenon and breaking an interfering relationship with other circuits. The main board and the like are first fixed to the bottom plate 1, and after the fixation, the cover 6 is attached to complete the device.

At both ends of the holder 7, contact pieces 8,
9 is provided. The purpose of the holder 7 is the same as that of the conventional one.
5 is to prevent the rolling of the substrate and to prevent the substrate from being damaged by vibration or the like. The material of the holder itself may be either sheet metal or a molded product, as long as it does not cause electrical damage (short circuit, etc.). When formed as a molded product, the contact pieces 8 and 9 can be integrally molded. The close-contact pieces 8 and 9 are in a positional relationship such that they can be in close contact with the inside of the cover 2 when the cover 2 is properly attached. Therefore, its shape is determined in relation to the holder 7.
For example, as shown in the drawing, it is formed in a "dogleg" shape. Also,
By providing the close contact pieces 8 and 9 with elasticity, close contact with the cover 2 can be absorbed and the close contact can be ensured. Due to the close contact with the cover 2, the holder 7 is fixed.

On the other hand, the projections C similar to the conventional one are provided on the upper portions of the sub-boards 4 and 5, respectively, and the holder 7 is provided with an insertion hole D, and the projection C is inserted into the insertion hole D. As a result, the sub-boards 4 and 5 are fixed to the holder 7 which is fixed by the close contact with the upper cover 2. Further, when the shield case 6 is housed like the sub-board 5, the shield case causes a certain thickness. Therefore, by providing the piece 10 in addition to the piece 9 that sandwiches the shield case 6, the holder 7 and the shield case 6 are in close contact with each other, and the holder 7 is prevented from falling off from the sub-board when the cover 2 is removed. it can.

[0010]

As described above, according to the present invention, a plurality of sub-boards each having a structure in which the sub-boards are vertically erected on a main board in a horizontal position is used as a casing (cabinet) composed of a bottom plate and a cover. In a housed CCTV camera device or the like, the plurality of sub-boards can be fixed by a simple method. That is, since the close pieces are provided at both ends of the holder used for fixing these sub-boards and the close pieces are brought into close contact with the inside of the upper cabinet to fix the holder and the board, the holder is fixed as in the conventional case. It is possible to eliminate the need for the chassis bending portion provided for this purpose and the screwing work to the chassis bending portion. As a result, the space around the main board can be effectively used because the chassis bending portion is unnecessary, and the work efficiency can be improved because the screwing work is unnecessary.

[Brief description of drawings]

FIG. 1 shows a printed circuit board support structure according to the present invention for a CCTV.
It shows an embodiment applied to a camera device,
(A) is a perspective view of the same apparatus, (B) is a rear view of the same.

2A and 2B show a conventional printed circuit board support structure using a CCTV camera device as an example. FIG. 2A is a perspective view of the device and FIG. 2B is a rear view of the device.

[Explanation of symbols]

 1 Bottom plate constituting a casing 2 Cover constituting a casing 3 Main substrate 4 Sub substrate 5 Sub substrate 6 Shield case 7 Holder 8 Contact piece 9 Contact piece

Claims (3)

[Claims] 1. A structure in which a main board is placed in a horizontal position in a housing in which a cover is attached to a bottom plate, and a plurality of sub-boards are erected on the main board in the same horizontal position. The holder is provided with a piece, the holder is bridged between the upper ends of the respective sub-boards, and the same contact piece is brought into close contact with the inside of the cover to support the sub-board. Printed circuit board support structure. 2. A sub-board is formed by providing a projection on each of the sub-boards, and providing an insertion hole corresponding to the projection on the holder, and inserting a projection of each sub-board into each of the insertion holes. A printed circuit board support structure characterized by being fixed. 3. The holder is provided with a piece so as to sandwich the shield case in a close state when there is a substrate housed in the shield case among the plurality of sub-boards. Printed circuit board support structure.