JPH069191U - PCB mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] A printed circuit board that can ground all mounting printed circuit boards to the mounting bracket side, and that can mount multiple printed circuit boards inside a single mounting bracket. It is to provide a mounting structure. [Structure] In a printed circuit board mounting structure in which a plurality of printed circuit boards 4 and 5 are mounted in a rack shape on a mounting bracket 1 having four peripheral walls 1a and 1b, each of the printed circuit boards is mounted at four corners of the mounting bracket 1. Tongue-shaped mounting portions 2 and 3 for mounting 4, 5 are provided such that the lower mounting portion 2 and the upper mounting portion 3 are at different positions, and the printed wiring board 4 to be disposed in the lower portion is abandoned. By this, the upper mounting part 3
Is provided with a cut-off portion 6 through which the vehicle can pass.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a printed circuit board mounting structure in which a plurality of printed circuit boards are mounted in a shelf shape on a mounting bracket having four peripheral walls.

[0002]

[Prior art]

 Conventionally, when it is necessary to magnetically shield a printed circuit board and attach it to the outside, a means such as mounting the printed circuit board on a mounting bracket with four peripheral walls and incorporating this into the equipment body has been adopted. ing. In this case, as a structure for mounting a plurality of printed circuit boards on the mounting bracket in a shelf shape, there is a structure shown in FIGS. 3 and 4. In FIG. 3, the tongue-shaped mounting portions 12 formed by cutting and raising the side wall surfaces are provided at the four corners of the mounting bracket 11, the lower printed circuit board 14 is placed on the mounting portions 12, and the pressing pieces 13a are mounted on the lower portion. The holding member 13 made of synthetic resin is provided upright in the screw hole 12a of the mounting portion 12 through the mounting hole of the printed board 14 so that the upper printed circuit board 15 is supported on the holding member 13. It was done. Further, in FIG. 4, two mounting brackets 11A and 11B having a low height are provided with mounting portions 12 similar to the above, and a lower printed circuit board 14 and an upper printed circuit board 15 are mounted respectively, and both mounting brackets 11A and 11B are mounted. This is a form in which the parts are fixed together with screws and other fixed parts.

[0003]

[Problems to be solved by the device]

 Generally, when a printed circuit board is mounted on the mounting bracket 11 having the four peripheral walls as described above, the grounding pattern on the back surface of the printed circuit board is joined to the mounting portion 12 to ground the mounting bracket 11 side. The conventional means shown in FIG. 3 has a drawback in that the upper printed circuit board 15 cannot be grounded. Further, the conventional means shown in FIG. There were drawbacks such as the need for fixing parts such as screws for fixing the metal fittings and the number of assembly steps.

The object of the present invention is to eliminate the above-mentioned drawbacks of the conventional printed circuit board mounting structure, and to ground all the printed circuit boards to be mounted on the mounting bracket side, and to install a single mounting board. An object of the present invention is to provide a printed circuit board mounting structure capable of mounting a plurality of printed circuit boards inside a metal fitting.

[0005]

[Means for Solving the Problems]

 The printed circuit board mounting structure according to the present invention is a printed circuit board mounting structure in which a plurality of printed circuit boards are mounted in a rack shape on a mounting bracket having four peripheral walls. Tongue-shaped mounting parts for mounting the board are provided so that the lower mounting part and the upper mounting part are in different positions, and the upper mounting part is cut by cutting the printed circuit board to be arranged in the lower part. It is provided with a cut-off portion that allows passage.

[0006]

[Action]

 Since the mounting bracket is formed by cutting up the side wall and the lower mounting portion and the upper mounting portion are displaced from each other, the cut-out portion of the printed circuit board arranged in the lower portion is cut to the lower mounting portion. Place and fix with screws. At this time, since the portion of the printed circuit board corresponding to the upper mounting portion is cut away, the upper mounting portion can be passed through and the printed circuit board can be dropped in a horizontal state. Next, a plurality of printed circuit boards can be mounted in a single mounting bracket by placing the upper printed board on the upper mounting portion and fixing it with screws.

[0007]

【Example】

 FIG. 1 is a perspective view showing an embodiment of a printed circuit board mounting structure according to the present invention. The printed circuit board mounting structure according to the present invention has a plurality of printed circuit boards 4, 5 mounted on a mounting bracket 1 having four peripheral walls. In the mounting structure of the printed circuit board for mounting the racks in a shelf shape, the tongue-shaped mounting portions 2 and 3 for mounting the respective printed circuit boards 4 and 5 are provided at the four corners of the mounting bracket 1 and the lower mounting portion 2 and the upper mounting portion. The mounting portions 3 are provided at different positions, and the printed circuit board 4 to be arranged in the lower position is provided with the dividing portions 6 through which the upper mounting portions 3 can pass.

The mounting bracket 1 is composed of side walls 1a, 1a and 1b, 1b facing each other, and the mounting portions 2 and 3 are formed by cutting and raising the side wall, but in the embodiment, the strength of the side wall is not reduced. In order to do so, of the lower mounting parts 2, the mounting parts 2a, 2a on one side are formed on the side walls 1a, 1a, and the mounting parts 2b, 2b on the other side are formed on the side walls 1b, 1b. Of the upper mounting portions 3, the mounting portions 3a, 3a on one side are formed on the side walls 1b, 1b, and the mounting portions 3b, 3b on the other side are formed on the side walls 1a, 1a.

At the time of mounting the printed circuit board, when the slit portion 6 of the printed circuit board 4 to be arranged in the lower position is split and the printed circuit board 4 is dropped in a horizontal state, the upper mounting portion 3 removes the slit portion 6. Since it can pass through, it can be reliably dropped. The print substrate 4 is placed on the lower mounting portion 2 and fixed with screws 7. Further, the upper printed circuit board 5 is mounted on the upper mounting portion 3 in a normal state and screwed. FIG. 2 shows an example of the structure in which the split portion 6 on one side of the printed circuit board 4 is omitted. In this case, as shown in FIG. 2, the printed circuit board 4 is inserted obliquely into the mounting bracket 1. Drop it after doing.

[0010]

[Effect of device]

 According to the printed circuit board mounting structure of the present invention, a plurality of printed circuit boards can be sequentially mounted on a single mounting bracket in a rack shape, and the mounting portions provided on the mounting bracket are different in position. There is no risk of making a mistake in the mounting order of the printed circuit board to be mounted on the upper level and the printed circuit board to be mounted on the lower level. Furthermore, since each printed circuit board is fixed to the mounting part provided on the mounting bracket with screws, etc., all the printed circuit boards can be grounded to the mounting bracket side, and the mounting brackets are joined together as in the past. This has the effect of not requiring screws or other parts to do so.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a printed circuit board mounting structure according to the present invention.

FIG. 2 is a perspective view of a configuration example in which a part of a slit portion formed on a printed circuit board is omitted.

FIG. 3 is a perspective view showing a conventional printed circuit board mounting structure.

FIG. 4 is a perspective view showing another example of a conventional printed circuit board mounting structure.

[Explanation of symbols]

 1 Mounting bracket 2 Lower mounting part 3 Upper mounting part 4 Lower printed circuit board 5 Upper printed circuit board 6 Split part 7 Screw

Claims (1)

[Scope of utility model registration request] 1. A mounting structure for a printed circuit board, wherein a plurality of printed circuit boards (4, 5) are mounted on a mounting structure (1) having four peripheral walls (1a, 1b) in a shelf shape. ) Tongue-shaped mounting portions (2, 5) for mounting the respective printed circuit boards (4, 5).
3) is provided and the positions of the lower mounting portion (2) and the upper mounting portion (3) are different, and the upper mounting portion ( 3) A mounting structure for a printed circuit board, characterized in that a cut-out portion (6) through which the 3) can pass is provided.