JPH0134391Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to the structure of an electronic circuit module that accommodates various electronic circuits and is mounted on a motherboard.

[Prior art]

FIG. 1 is a perspective view of a conventional example showing the external shape of an electronic circuit module (hereinafter referred to as module) and its relationship with a motherboard.
As shown in the figure, there is a case 1 with an open back, a board 4 for mounting an electronic circuit that is housed inside the case and has a connection part 3 on the open surface 2, and a board 4 that penetrates the case 1 from the front to the back. , and the tip 5 is the connection part 3
The module 7 is
is configured, and after inserting the connection part 3 into the connector 12 of the motherboard 11,
By screwing the tip of the set screw 6 into the screw hole 14 of the post 13 protruding from the front side, the module 7 is completely attached to the motherboard 11 along with the electrical connection.

However, since the tip 5 of the set screw 6 protrudes near the connection part 3, when installing the module 7 to the motherboard 11, the tip 5 may be mistakenly attached to the connector 12.
If the connector 12 is inserted into the opening of the connector 12 and comes into contact with the contact piece of the connector 12, a short circuit or a ground fault may occur.

[Summary of the idea]

The present invention has the purpose of eliminating such drawbacks of the conventional ones at once, and in the above-mentioned module, an insulating collar is provided that is locked to the tip of the set screw, thereby making it possible to prevent the tip of the set screw from becoming The present invention provides a highly effective structure for electronic circuit modules that prevents insertion into connector openings.

〔Example〕

Hereinafter, details of the present invention will be explained with reference to FIG. 3 showing an embodiment.

FIG. 3 is a cross-sectional view similar to FIG. 2, except that a collar 22 made of an insulating material is provided which surrounds the tip of the set screw 6 and has a front edge 21 that protrudes beyond the tip 5. It is threadedly engaged with the tip of the set screw 6 through a screw hole bored in the substantially central part of the bottom surface 23 thereof, and is then locked to the tip of the set screw 6.

The inner diameter of the collar 22 is larger than the outer diameter of the post 13, so that there is no problem in screwing the set screw 6 into the screw hole 14.

Therefore, the motherboard 11 by the setscrew 6
Attachment to the collar 22 is carried out in the same manner as before, and even if the tip 5 of the set screw 6 is inserted into the opening of the connector 12, the front edge 21 of the collar 22 protrudes from the tip 5 and the collar Since the outer diameter of the connector 22 is larger than the opening width of the connector 12, the collar 22 prevents the tip 5 from being inserted, and the tip 5 will never cause a short circuit or a ground fault.

In addition, if an inward taper 24 is formed on the front edge 21 side of the collar 22, it will serve as a guide for the post 13 and facilitate insertion of the tip 5 into the screw hole 14.

However, the collar 22 may be any material as long as it achieves the purpose of insulation, and it may be made of metal or the like, and the front edge 21 may be insulated, and may be made of adhesive or a stopper. The collar 22 may be locked to the set screw 6 by a locking member such as the above, and the shape can be arbitrarily selected and various modifications can be made as long as the collar 22 has the same function.

[Effect of idea]

As is clear from the above explanation, according to the present invention, when the module is installed on the motherboard, the tip of the set screw is inserted into the opening of the connector, completely eliminating the possibility of short circuit or ground fault, and the configuration is It is simple and inexpensive, and can have great effects in various modules.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a conventional example, FIG. 2 is a similar sectional view, and FIG. 3 is a sectional view showing an embodiment of the present invention. 1...Case, 2...Open surface, 3...Connection part,
5... Tip, 6... Set screw, 7... Module (electronic circuit module), 11... Motherboard,
12... Connector, 13... Post, 14... Screw hole, 21... Front edge, 22... Collar.

Claims (1)

[Scope of utility model registration request] A case with an open back, a connection part provided on the open side of the case and inserted into the connector of the mother port, and a connection part that penetrates the case from the front to the back and has a tip protruding near the connection part. The electronic circuit module further includes a set screw that is screwed into a screw hole of a post protruding from the motherboard to the front, the electronic circuit module having a shape that surrounds the tip of the set screw and has a front edge that protrudes from the tip of the set screw. A structure of an electronic circuit module characterized in that an insulating collar is provided that is locked to the tip of the electronic circuit module.