JPH10256755A - Structure for mounting circuit board having multipin connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and easily mount a circuit board for providing a preferable shape in appearance. SOLUTION: The structure for mounting a circuit board having multipin connectors has a chassis 35, covered with a cover 34. The outer connection faces of the connectors are exposed from the chassis sides. The chassis 35 has a side plate 36. The cover 34 has a side plate 40 fitted to the outer surface of the chassis side plate 36, having notches 37, 38 at a part for fitting connectors 31, 32. A mounting plate 42 to be positioned and fitted to the inner face of the side plate 36 is disposed on the inner face of the side plate 40 at a part other than the notches 37, 38. After mounting, the outer surfaces are flush with each other to avoid impairing the appearance and remove the risk of their outer end edges from being exposed to the outside. Since cover is positioned to the chassis 35 beforehand, this very much facilitates and accelerates mounting work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a circuit board with a collective connector to a chassis of an electronic device or the like, and more particularly, to a structure in which a collective connector is exposed from a side of a chassis with the circuit board mounted inside the chassis. The present invention relates to a mounting structure of a circuit board to be mounted.

[0002]

2. Description of the Related Art In electronic equipment and the like, for example, a circuit board having required circuit wiring and the like formed on an insulating substrate surface is used, and electronic components and the like are mounted on the circuit wiring to form an electronic circuit. There is a case where a lid is fitted to the chassis box after the circuit board having the configuration is provided inside the chassis box.

In this case, a relatively large number of circuit terminals are taken out of the electronic circuit. In order to collectively connect a terminal group corresponding to an external device to each of these circuit terminals, generally, A circuit connector is provided in which the circuit terminals to be taken out are grouped in a specific group and arranged in a row, and the circuit connector is projected from an edge of the circuit board, and the circuit board is mounted on a chassis body. In a state in which the connector is mounted, the external connection surface of the collective connector is exposed from the side of the housing and held so as to be exposed to the outside.

FIGS. 7 and 8 show a conventional mounting structure of a circuit board with a collective connector of this kind. Each of the adjacent side edges has a circuit board 3 in which individual collective connectors 1 and 2 stand up and protrude outward and upward, and a chassis case 5 covered with a cover 4 This is a case where the circuit board 3 provided with each of the collective connectors 1 and 2 is mounted.

Attachment pieces 7 having attachment screw holes 6 at four open upper corners of the chassis box 5 project in parallel with the bottom surface of the chassis box 5, and the collective connectors 1, 1 of the box side plate 8 are provided. Notches 9 and 10 are formed in each upper side corresponding to 2. At four corners of the lid 4 for closing the chassis 5, mounting holes 11 corresponding to the mounting screw holes 6 are provided.
Are drilled. In the state where the circuit board 3 is mounted on the chassis box 5 from above, the notches 9 and 10 are provided.
Each of the collective connectors 1 and 2 is fitted therein, and in this state, the cover 4 is covered with the chassis 5 and the mounting screws 12 are screwed into the mounting screw holes 6 through the respective mounting holes 11 from above. By doing so, the circuit board 3 can be fixed and held, and the external connection surfaces of the respective collective connectors 1 and 2 can be exposed to the outside.

Next, FIGS. 9 and 10 show another conventional example.
A mounting screw hole 16 is formed in each of the left and right upper portions facing each other of the case side plate 15 whose height is set somewhat higher than that of the previous example, and a notch is formed in each corresponding upper side of the case side plate 15. A bottomed box-shaped chassis box 14 having 17 and 18 formed thereon and a lid side panel 20 that can be fitted to the outside of the box side panel 15 are provided. Lid 19 with corresponding mounting holes 21
After the circuit board 3 is mounted on the chassis body 14 from above, the collective connectors 1 and 2 are received and fitted in the cutouts 17 and 18, respectively.
The cover 19 is fitted on the opened upper portion to hold down the respective connectors 1 and 2, and the mounting screws 22 are screwed into the mounting screw holes 16 through the respective mounting holes 21 from the left and right sides facing each other. Thus, the circuit board 3 can be fixed and held, and the external connection surfaces of the respective collective connectors 1 and 2 can be exposed to the outside.

[0007]

However, the mounting structure of the circuit board in each of the above-mentioned conventional examples has various problems as follows. (a) After the circuit board is mounted, in the case of the conventional example shown in FIGS. 7 and 8, the heads of the mounting screws are directly exposed on the surface side of the lid serving as a decorative surface, which is preferable in terms of appearance. Absent. or,
In the case of the conventional example shown in FIGS. 9 and 10, a similar problem occurs because the lid protrudes from the upper part of the chassis to form a step, and the screw head is exposed at the protruding portion. . (b) When the lid is fitted, in the case of the conventional example shown in FIGS. 7 and 8, the horizontal positioning of each mounting hole of the lid with respect to each mounting screw hole on each one mounting surface, and FIG. , FIG.
Also in the case of the conventional example, the vertical positioning of each mounting hole of the lid with respect to each mounting screw hole on the surface of the chassis case is not necessarily easy, and extra time is required for the operation. (c) After the circuit board is mounted, in the case of the conventional example shown in FIGS. 7 and 8, the end face of the lid is exposed to the outside.
Also in the case of the conventional example, there is a danger since the edge of the step is exposed to the outside.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a circuit board with a collective connector having a desirable appearance can be mounted quickly and easily. A mounting structure is provided.

[0009]

According to the present invention, an external connection surface of a connector is exposed from a side of the chassis box while a circuit board is mounted using a chassis box fitted with a lid. In the mounting structure of the circuit board with a collective connector, the chassis case has a case side plate, and the cover has a cover side plate that matches an outer surface of the case side plate, A notch is formed in a portion of the housing side plate that can be fitted to the collective connector, and an inner surface of the lid side plate is positioned and inserted into the inner surface of the housing side plate at a position avoiding the notch. A mounting plate is provided.

Since the outer surfaces of the chassis box and the lid are substantially or substantially the same, the outer surfaces are flush with each other after mounting, so that the appearance is not impaired. The danger is eliminated because the edges are not exposed to the outside.
In addition, since the fitting of the lid to the chassis is preliminarily positioned by the mounting plate, the mounting operation is extremely easy and quick.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a mounting structure for a circuit board with a collective connector according to the present invention will be described below in detail with reference to FIGS.

A chassis is provided on each of the left and right side edges facing each other, with a circuit board 33 in which individual collective connectors 31 and 32 are raised upward and project in parallel to each other, and are covered by a lid 34. This is an application example in a case where a circuit board 33 with each of the collective connectors 31 and 32 is housed in a box 35.

The chassis case 35 has a box-like shape with a bottom and opened upward with a case side plate 36 formed by folding up, and the left and right upper sides of the case side plate 36 facing each other. In addition, notches 37 and 38 are formed so as to be fitted to the respective collective connectors 31 and 32, and individual mounting holes 39 are formed in the front and rear plate surface portions orthogonal to the respective notches 37 and 38. It has been formed.

The lid 34 is provided with the box side plate 36.
Cover side plate 40 that matches (or substantially matches) the outer surface of
It has a box shape with a bottom and opened downward, and each of the mounting screw holes 41 is provided at the corresponding position of each of the mounting holes 39 on the inner surface of the front and rear plate surface portions of the lid side surface plate 40 facing each other. The formed mounting plates 42 are provided so as to project downward.

Therefore, in the device configuration according to the first embodiment, first, the circuit board 33 is inserted into the chassis box 35 from above to be mounted on the circuit board 33 so as to be provided therein. Each set connector 31, 32
Are automatically received in the corresponding left and right cutouts 37 and 38, respectively, and are accurately fitted.

Subsequently, by fitting each mounting plate 42 of the lid 34 from the opened upper side of the chassis 35, the lid 34 is automatically positioned and fitted to the chassis 35. Then, the assembly connectors 31 and 32 are pressed at the fitting positions, and the mounting screw holes 41 are aligned with the mounting holes 39 on the front and rear sides of the casing.

By screwing the mounting screws 43 into the mounting screw holes 41 through the mounting holes 39, the outer surfaces of the chassis 35 and the lid 34 are finally flush with each other. Thus, the circuit board 33 is fixedly held on the chassis box 35, and the collective connectors 31, 32 of the circuit board 33 can expose the external connection surface to the outside.

A second embodiment will be described with reference to FIGS.

Each of the collective connectors 31 and 32 projecting from the circuit board 33 is disposed in a posture orthogonal to the right and front side edges adjacent to each other, and each of the connectors formed on the chassis 35 is formed. The notches 37, 38 are connected to each of the collective connectors 3.
1 and 32, and the chassis 35
Each of the mounting holes 39 is formed on each of the left and right plate surfaces adjacent to the front and rear ends, and each of the mounting plates 45 of the lid body 34 is similarly formed with the right and left inner surfaces close to the front and rear ends. It is provided as a letter-shaped member, and each of the mounting screw holes 41 corresponding thereto is formed.

Therefore, also in the second embodiment,
Functions and effects similar to those of the first embodiment can be obtained.

[0021]

As described above in detail in each embodiment, according to the present invention, the outer surfaces of the chassis side plate of the chassis and the lid side surface plate of the lid are made to coincide with each other. Therefore, in a state where the circuit board is installed, there is no fear that the respective outer surfaces are flush with each other, and the outer edges of both of them are not exposed to the outside. In addition, since the fitting of the lid body to the chassis case is preliminarily positioned by the mounting plate, there is an excellent advantage that the work of mounting the circuit board can be performed extremely easily and quickly. Moreover, since the structure is relatively simple, implementation is easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing the first embodiment.

FIG. 3 is a view as viewed in the direction of arrows AA in FIG. 1;

FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 5 is a perspective view showing the second embodiment.

6 is a view as viewed in the direction of arrows BB in FIG. 4;

FIG. 7 is an exploded perspective view showing a conventional example.

FIG. 8 is a perspective view showing a conventional example of the same.

FIG. 9 is an exploded perspective view showing another conventional example.

FIG. 10 is a perspective view of another conventional example of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 31 Collective connector 32 Collective connector 33 Circuit board 34 Lid 35 Chassis box 36 Box side plate 37 Notch 38 Notch 39 Mounting hole 40 Lid side plate 41 Mounting screw hole 42 Mounting plate 43 Mounting screw

Claims (1)

[Claims] 1. A mounting structure for a circuit board with a collective connector that exposes an external connection surface of a connector from a side of the chassis using a chassis box fitted with a lid and a circuit board mounted therein. In the above, the chassis box has a box side plate, the lid has a cover side plate that matches the outer surface of the box side plate, and the assembly includes A notch is formed in a portion that can be fitted to the connector, and an inner plate of the lid side plate is provided with a mounting plate that is positioned and inserted into the inner surface of the box side plate at a position avoiding the notch. Features mounting structure of circuit board with collective connector.