JPH04137091U - Electronic circuit unit structure - Google Patents

Abstract

(57) [Summary] [Purpose] In the conventional unit structure, when the unit is thrown into the housing at an accelerated pace, the unit insertion/removal tool receives the impact force, thereby preventing damage to the connector. However, this method has the drawback of causing damage to the unit insertion/removal tool. The present invention aims to eliminate this drawback. [Structure] A leaf spring member (flexible member) 2 is provided behind the unit insertion/removal tool 1 on the unit 3. [Effect] Due to the leaf spring member 2 attached to the unit insertion/removal tool 1, even if the unit 3 is thrown into the casing at an accelerated pace, the leaf spring member 2 will receive the impact force. Damage to the unit insertion/removal tool 1 can be prevented.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention allows the electronic circuit unit to be inserted into the housing in which the electronic circuit unit is mounted. The present invention relates to an electronic circuit unit structure for facilitating removal.

0002

[Conventional technology]

For example, the technology shown in Figure 5 has been proposed as a conventional electronic circuit unit structure. It is. In this structure, as shown in FIG. A unit insertion/removal tool 21 is attached to the rear of the notch 25 of the unit insertion/removal tool. The tip is always located below the upper end of the protrusion 28 of the front crossbeam 27 of the housing, and the notch is The unit only rotates when the rear end of the shaft 25 rotates above the upper end of the protrusion 28. A spring is provided to apply a repulsive force to the insertion/removal tool 21.

0003

[Problem that the idea aims to solve]

However, in the conventional electronic circuit unit structure, the unit is If the unit is thrown into the Although the structure is designed to prevent damage to the connector, do not damage the unit insertion/removal tool. The disadvantage is that it causes

0004 This invention was made in view of the above-mentioned conventional circumstances, and therefore the purpose of this invention is , a new electronic circuit unit that makes it possible to eliminate the above-mentioned drawbacks inherent in conventional technology. The purpose is to provide a knitted structure.

[0005]

[Means to solve the problem]

In order to achieve the above object, the electronic circuit unit structure according to the present invention is a unit A pin is embedded in the lower front corner of the unit board, which is configured to be able to be inserted into and removed from the mounting casing. The pin is rotatably supported by the pin and has one end protruding forward from the front of the unit. and a protrusion formed at the other end of the arm and protruding from the front crossbeam of the casing. The above-mentioned Utility Application No. 60-2, characterized in that it is provided with an engaging portion having a notch that can be fitted together. An electronic circuit equipped with the unit insertion/removal tool described in the specification and drawings of No. 4005. In the road unit structure, the unit insertion/removal tool and the protrusion of the unit mounting case are connected to each other. It is constructed by installing an elastically deformable leaf spring (flexible) member with one end fixed between the base and the base. and the other end of the leaf spring member is contacted at the same time as the unit insertion/removal tool rotates. and rotate the leaf spring member to the protrusion in accordance with the rotation of the unit insertion/removal tool. The unit is elastically deformed to a state where it can be crossed over without touching the unit, and the unit can be inserted. , is characterized by being electrically connected.

[0006]

【Example】

Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings. Ru.

[0007] FIG. 1 is a side view showing an embodiment of the present invention.

[0008] In Figure 1, a unit is rotatably supported by a pin 1a fixed on the unit 3. A leaf spring member (flexible member) 2 is provided at the rear of the knit insertion/removal tool 1. spring The member 2 is fixed to the unit 3 by a fixed part 2a, and the other part, that is, the spring part 4, is elastically deformed. (flexibility).

[0009] Figure 2 shows how to insert the unit 3 into the housing without using the unit insertion/removal tool 1. The rear surface of the spring portion 4 of the leaf spring member 2 comes into contact with the front edge 9 of the protrusion 8 of the front crossbeam 7. FIG.

0010 In Figure 2, the connector 11 mounted on the rear of the unit 3 and the connector on the housing side are shown. The connector 12 is in a state before being fitted.

[0011] Figure 3 shows how the insertion/removal tool 1 is rotated around the pin 1a by operating the arm 1b. After rotating clockwise, that is, in the direction of arrow A13, push the unit 3 in the direction of arrow B14. Press the unit into the housing and insert it into the housing so that all the tips 16 of the notches 15 of the unit insertion/removal tool 1 are aligned with the front crossbeam. 7 is a side view showing a state in which the protrusion 8 is in contact with the front edge 9 of the protrusion 8. FIG.

0012 In FIG. 3, the spring portion 4 of the leaf spring member is inserted and removed by the unit insertion/removal tool 1 as shown in the figure. In order to be elastically deformed, the tip 6 of the spring portion 4 of the leaf spring member 2 and the unit insertion/removal tool 1 are connected to each other. The rear tip 17 of the notch 15 is located above the upper end 10 of the protrusion 8, and therefore the unit This prevents the cut 3 from coming into contact with the protrusion 8 when it moves in the direction of arrow B14. . At this time, a repulsive force is applied to the spring portion 4 in the direction of arrow C18. In this state, The connector 11 and the housing-side connector 12 begin to fit together.

[0013] Figure 4 shows that the unit insertion/removal tool 1 has finished rotating and the connector 11 of the unit 3 and the housing are connected. FIG. 3 is a side view showing a state in which the fitting with the side connector 12 is completed.

[0014] Referring to FIG. 4, in the state shown in FIG. This is because the front end of the 16-page front crossbeam is in contact with the front edge 9 of the front crossbeam protrusion 10 of the housing front crossbeam 10. Even if unit 3 is pressed in the direction of arrow B14, unit 3 does not move, but The unit insertion/removal tool 1 is rotated clockwise by the operation of the thumb 1b, and the state shown in FIG. 4 is obtained. , the front crossbeam protrusion 8 is disposed within the notch 15 of the unit insertion/removal tool 1. In this state, by pressing the unit 3 in the direction of B14 in Fig. 3, the unit The side connector 11 and the housing side connector 12 are mated, and the unit 3 is mounted on the housing. be done.

[0015] When removing unit 3 from the housing, the above insertion operation should be reversed. it is obvious.

[0016]

[Effect of the idea]

As explained above, according to the electronic circuit unit structure of the present invention, Flexible members ensure that even if the unit is thrown into the enclosure at high speed, it will Since the leaf spring member receives the impact force, it prevents damage to the connector and unit insertion/removal tool. be able to.

[0017] Furthermore, according to the present invention, when mating the connector, a unit insertion/removal tool is used. Rotate so that the tip of the spring part of the leaf spring member and the rear part of the unit insertion/removal tool notch protrude from the housing crossbeam. It is extremely safe because mating will not occur unless an operation is performed to get over the origin. It can fully protect the collector and unit insertion/removal tools.

[Brief explanation of drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is the same side view as FIG. 1 when the effect of the present invention occurs;

FIG. 3 is the same side view as FIG. 1 when the connector starts fitting.

FIG. 4 is the same side view as FIG. 1 when the connector has finished fitting.

FIG. 5 is a side view of a conventional example.

[Explanation of symbols]

1...Unit insertion/removal tool 2...Plate spring member 3...Unit 4...Spring part 5...Rear surface of spring part 6...Spring part tip 7…Case front crossbeam 8...Front cross beam protrusion 9... Front edge of protrusion 10...Top end of protrusion 11...Unit side connector 12... Housing side connector 13...Unit insertion/removal tool lowering direction 14...Unit insertion direction 15...Unit insertion/removal tool notch 16...Notch front tip 17...Notch rear tip 18...Direction of repulsive force action

──────────────────────────────────────────────── ─── Continuation of front page (72) Creator Yasuhiro Kitajima NEC Corporation, 5-7-1 Shiba, Minato-ku, Tokyo Inside the company (72) Creator Kenichi Furukawa 2, Raijin, Yoshioka, Yamato-machi, Kurokawa-gun, Miyagi Prefecture Within NEC Corporation

Claims (1)

[Scope of utility model registration request] Claim 1: A pin implanted in the lower front corner of a unit board configured to be freely insertable and removable in a housing for mounting the unit; and a pin rotatably supported by the pin, with one end protruding forward beyond the front of the unit. and a unit insertion/removal tool comprising an arm and an engaging part having a notch formed at the other end of the arm and capable of engaging with a protrusion protruding from the front crossbeam of the casing. In an electronic circuit unit structure, an elastically deformable leaf spring member with one end fixed is installed between the unit insertion/removal tool and the protrusion of the unit mounting case, and the unit insertion/removal tool is rotated. At the same time as the operation, the other end of the leaf spring member is brought into contact with the other end, and in accordance with the rotation of the unit insertion/removal tool, the leaf spring member is elastically changed to a state where it can ride over the protrusion without contacting the protrusion, and the unit is inserted. An electronic circuit unit structure characterized by enabling and electrically connecting.