JPH0438556Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a circuit board front plate fixing mechanism, and more particularly to a circuit board front plate fixing mechanism in which the fixing mechanism is improved.

[Conventional technology]

FIG. 3 is an exploded perspective view showing an example of a conventional circuit board front plate fixing mechanism.

Conventionally, the front plate fixing mechanism of this type of circuit board was
A front plate 7 is vertically disposed on one end surface of the circuit board 6, and the two are connected by a fixture 8 and a puller 9, and fixed by press-fitting a spring pin 10.

[Problem that the invention attempts to solve]

The conventional circuit board front plate fixing mechanism described above is
Since both the extraction tool and the fixing tool are made of an insulating material, there is a drawback that electrical connection between the circuit board and the front plate cannot be made. In addition, after assembling the circuit board, front plate, extraction tool, and fixing tool in the predetermined positions, spring pins are driven in and assembled, making the assembly work complicated and requiring a high degree of dimensional accuracy for each component. There is a drawback that it does.

[Means for solving problems]

The front plate fixing mechanism of the circuit board of the present invention has a rectangular planar shape and has two first plates in the upper and lower parts near one end surface.
a circuit board having a rectangular planar shape and vertically disposed on the one end surface of the circuit board, and having a notch and a second square hole at positions corresponding to the first two square holes, respectively. a front plate made of a conductive material; and a U-shaped leg having a length that fits into one of the notches and the second square hole and reaches at least the first square hole. a fixing tool having a U-shape and an elastic pull-out tool that fits into the other notch and the second square hole and has the same shape as the fixing tool and has a handle for pulling out; at least one first plate made of a conductive plate-like material and partially protruding outward and inward of the U-shape;
and a second projecting piece, the fixture and the extractor fit into the two legs and are engaged and fixed by the first projecting piece, and the circuit board is connected to the first corner. and a U-shaped connection piece with which the second protruding piece is engaged and fixed in the hole.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

Figures 1a and b are a perspective view and an exploded perspective view of an embodiment of the present invention, and Figure 2a is a U used in this embodiment.
A plan view of the letter-shaped connecting piece, and FIGS. 2b and 2c are cross-sectional views showing the fixing state according to this embodiment.

This embodiment includes a circuit board 1, a front plate 2, a fixture 3,
It has a puller 4 and a U-shaped connecting piece 5.

The circuit board 1 has a rectangular planar shape and has two rectangular locking holes 11 at the upper and lower parts near one end surface. The front plate 2 is made of a conductive material and has a rectangular planar shape, and is provided with two notches 21 and two insertion holes 22 at positions corresponding to the locking holes 11 of the circuit board 1.

The fixture 3 has a U-shape, and as shown in the cross-sectional view in FIG.
2, and the U-shaped legs have a length that exceeds the position of the locking hole 11 of the circuit board 1 when the circuit board 1 is connected to the front plate 2 via the front plate 2. The extraction tool 4 has the same shape as the fixture 3, and has a handle 41 for extraction.

The U-shaped connection piece 5 is made of an elastic, spring-like conductive plate-like material, and has a substantially U-shape. Second
As shown in FIG. I have it.

The operation of this embodiment having the above configuration will be described next.

When the elastic U-shaped connecting piece 5 is inserted into the U-shaped inside of the fixture 3, the protruding piece 51 fits into the recess 31, and the U-shaped connecting piece 5 and The fixture 3 is integrated. Although not shown, the U-shaped connecting piece 5 and the extraction tool 4 are also integrated in exactly the same manner.

Next, the front plate 2 is perpendicularly brought into contact with one end surface of the circuit board 1, and the fixture 3 and extractor 4 integrated as described above are inserted into the notch of the front plate 2 from the direction of the U-shaped leg. When inserted into the portion 21 and the fitting hole 22, the protruding piece 52 fits into the locking hole 11 of the circuit board 1 and the bent portion 53 is inserted, as shown in FIG. 2c.
Since the front plate 2 is pressed against the recess 32 by its elasticity, the circuit board 1 and the front plate 2 are firmly fixed without rattling.

Furthermore, since the U-shaped connecting piece 5 has conductivity, the function of electrical connection between the circuit board 1 and the front plate 2 can be ensured.

[Effect of idea]

As explained above, the present invention makes it possible to electrically connect the circuit board and the front plate by providing a U-shaped connection piece made of an elastic conductive material and equipped with a protruding piece, thereby preventing electromagnetic interference. above is valid. In addition, the U-shaped connection piece can be mechanically connected to the extraction tool and fixing device by simply inserting the U-shaped connection piece, and the circuit board and the Mechanical connection with the face plate becomes possible, which has the effect of simplifying assembly work. Furthermore, by adding elasticity to the part of the U-shaped connection piece that connects to the front plate, tightness between the circuit board and the front plate can be achieved without the need for highly accurate dimensions, reducing component costs. There is an effect that it can be done.

[Brief explanation of the drawing]

Figures 1a and b are a perspective view and an exploded perspective view of an embodiment of the present invention, and Figure 2a is a U used in this embodiment.
FIGS. 2b and 2c are sectional views showing the fixing state according to the present embodiment, and FIG. 3 is an exploded perspective view showing an example of a conventional circuit board front plate fixing mechanism. 1, 6... Circuit board, 2, 7... Front plate, 3,
8... Fixing tool, 4, 9... Pulling tool, 5... U-shaped connection piece, 10... Spring pin, 11... Locking hole, 21... Notch, 22... Fitting hole, 31 ,3
2... recessed part, 41 handle, 51, 52... protruding piece, 53... bent part.

Claims (1)

[Scope of utility model registration request] a circuit board having a rectangular planar shape and having two first square holes in upper and lower portions near one end surface; a front plate made of a conductive material and having a notch and a second square hole at positions corresponding to the square holes; A fixture having a U-shape and having two legs long enough to reach the square hole, and the other fixture fitting into the notch and the second square hole to have the same shape as the fixture, and being pulled out. a puller having a U-shape and made of an elastic conductive plate-like material, and partially protruding outward and inward of the U-shape, at least one first and It has a second protruding piece, the fixing tool and the extracting tool fit into the two legs and are engaged and fixed by the first protruding piece, and the circuit board is connected to the first square hole. A front plate fixing mechanism for a circuit board, comprising: a U-shaped connecting piece with which the second protruding piece is engaged and fixed.