JPH0729888U - Package dropout prevention structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To realize a package drop-out prevention structure capable of preventing the stored electronic circuit package from falling off from the electronic circuit unit and damaging the mounted electric parts and the like. [Structure] Vertical sliding ends 15a and 15b of the package 15
Is formed into a T shape. Further, the guide rail 12 of the unit frame 11 is provided with a fall prevention piece to form a guide space 12b thereof having a T-shaped cross section.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for preventing a dropout of an electronic circuit package housed in an electronic circuit unit.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, an electronic circuit package (hereinafter referred to as a package) for accommodating an electronic circuit unit of this type (hereinafter referred to as a package) has been inserted and removed by using a guide rail having a configuration shown in a perspective view of a main part of FIG. In the figure, guide rails 2 having a concave cross section are provided on the upper and lower inner sides of the unit frame 1, and a back panel 3 is provided with a printed wiring board (not shown) on the back surface. . A connector 4 is erected on the inside of the back panel 3, and when the package 5 is inserted along the guide rail 2 in the arrow direction, the connector 6 mounted on the rear end of the package 5 is The structure was such that the package 5 and the back panel 3 were electrically connected by fitting.

[0003]

[Problems to be solved by the device]

 However, in the storage structure of the package 5 in the unit frame as described above, when a large number of packages 5 are stored, the lower weight of the package 5 causes the lower surface of the unit frame 1 to bend, and the package 5 is guided by the upper guide rails 2. The connector 4 of the unit frame 1 and the connector 6 of the package 5 may be disengaged, and the connector 4 or the connector 6 may be damaged, and the impact may damage the package 5 itself or the package 5. There were also problems such as breakage of parts.

In order to solve the problems of the prior art, the present invention provides the upper and lower guide rails of the unit frame and the package guided by the rails with a dropout prevention mechanism. It is intended to provide a package dropout prevention structure.

[0005]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to the embodiment. The present invention has a structure for housing a plurality of packages 15 in a unit frame 11, The upper and lower sliding ends 15a and 15b are formed to have a T-shaped cross section, and the tip of the conventional guide rail is bent inward to prevent the drop-out that is provided oppositely with a space slightly wider than the thickness dimension of the package 15. The guide rail 12 in which a guide space having a T-shaped cross section is formed by the piece 12a is provided.

[0006]

[Action]

 Since the present invention is configured as described above, when the package 15 is completely accommodated in the unit frame 11 along the guide rail 12, the T-shaped edge 15a of the package 15 is the fall prevention piece 12a of the guide rail 12. Since it is supported, the unit frame 11 does not bend. Therefore, the guide rail 12 of the package 15 does not fall off, and damage to the connectors 4 and 6 or the package 15 can be prevented.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a perspective view of the main part of the unit frame of the package drop-out prevention structure according to the present invention as seen from the package insertion side (front side), and also partially discloses the stored state of the package. In the figure, reference numeral 11 is a unit frame, and guide rails 12 for inserting and removing the package are provided opposite to each other on the upper and lower surfaces inside, and as shown in the sectional view of FIG. Is bent inward to form the fall-preventing pieces 12a, 12a of the package 15. Reference numeral 13 denotes a back panel of the unit frame 11, to which a printed wiring board is attached, which is not shown. Reference numeral 14 denotes a connector for electrically connecting to a package, which will be described later, which is erected inside the back panel 13, 15 denotes a package, and 16 denotes a connector mounted on a rear edge of the package 15 and fitted with the connector 14. To do. Further, the package 15 has its upper and lower sliding ends 15a and 15b formed in a T shape as shown in the sectional view of FIG. It slides together to allow safe and secure insertion and removal of the unit frame 11.

Next, the operation of housing the package 15 in the unit frame 11 using the package dropout prevention device having the above structure will be described. First, when inserting the package 15, when the package 15 is inserted along the guide rails 12 of the unit frame 11 to be inserted, the connector 16 of the package 15 contacts the connector 14 on the unit frame 11 side. Contact. When it is further inserted, both connectors 14 and 16 are fitted to each other, the package 15 and the back panel 13 on the unit frame 11 side are electrically connected, and the insertion work of the package 15 is completed. On the contrary, when the package 15 is pulled out to the front, the connector 16 is disengaged from the connector 14 on the unit frame 11 side, the electrical connection is released, and thereafter, the guide rail 12 guides the connector safely and the unit frame is released. Removal work from 11 is completed.

Further, even when the package 15 is housed in all the guide rails 12 of the unit frame 11, the T-shaped portion 15 a of the package 15 is supported by the fall prevention piece 12 a of the guide rail 12. The bending phenomenon of the unit frame 11 due to the own weight of the package 15 does not occur, so that the package 15 is prevented from being dropped and the damage caused by the drop.

[0010]

[Effect of device]

 As described in detail above, according to the present invention, the following effects can be obtained. The guide rail of the unit frame is provided with a fall prevention piece to form the guide space in a T shape and the guided edge of the package is formed in a T shape, so it is possible to reliably prevent the package from falling off the guide rail. became.

In addition, since the T-shaped edge of the package is supported by the fall-preventing pieces of the guide rails, mechanical problems such as bending of the unit frame due to the weight of the package are resolved, and the connectors are disengaged from each other. It is possible to prevent injuries and damages to electric parts mounted on the package.

[Brief description of drawings]

FIG. 1 is a perspective view and a cross-sectional view of an essential part showing an embodiment of the present invention.

FIG. 2 is a perspective view of a main part showing a conventional example.

[Explanation of symbols]

 11 unit frame 12 guide rail 13 back panel 14 connector 15 package 16 connector

Claims (1)

[Scope of utility model registration request] 1. A structure for accommodating a plurality of electronic circuit packages in an electronic circuit unit, wherein the upper and lower sliding ends of the package are formed in a T shape in cross section, and the cross sections are formed by captive prevention pieces arranged at regular intervals. A package dropout prevention structure, characterized in that a guide rail having a T-shaped guide space is provided.