CN201562829U

CN201562829U - A new type of guide anti-wrong device for electronic modules

Info

Publication number: CN201562829U
Application number: CN2009202311654U
Authority: CN
Inventors: 李东来
Original assignee: CETC 14 Research Institute
Current assignee: CETC 14 Research Institute
Priority date: 2009-09-03
Filing date: 2009-09-03
Publication date: 2010-08-25
Anticipated expiration: 2019-09-03

Abstract

The utility model relates to a new type of guiding and anti-inserting device for an electronic module, which comprises a guiding pin and a guiding sleeve; the guiding pin comprises a positioning pad (1), a guiding rod (2) and a positioning structure; the guiding rod (2) passes through an 8-face method The blue plate is installed on the positioning liner (1), and is positioned through the positioning structure on the positioning liner (1). The positioning structure on the liner (1) consists of a nut (3), a spring washer (4), a flat washer ( 5) composition, the spring washer (4) is located between the nut (3) and the flat washer (5); the guide sleeve includes a sleeve (6), a sheath (7), a countersunk screw (8), a limit sleeve (9 ); the limit sleeve (9) is connected with the sheath (7) through the countersunk head screw (8), and the limit sleeve (9) limits the sleeve (6) in the sheath (7); on the sleeve (6) The notch of the guide rod (2) cooperates with the upper boss. Each guide sleeve and guide pin of the utility model has 8 key positions, which solves the problem of insufficient key positions of the guide sleeve.

Description

The novel guiding mis-plug prevention device of electronic module

Technical field

The utility model relates to the novel guiding mis-plug prevention device of a kind of electronic module, belongs to the anti-wrong plug technology of electronic module guiding, meets the VITA46 standard, is applicable to the VPX module.

Background technology

The powerful system complex of large-scale elect, each large-scale elect generally is made up of many subsystems, be exactly to form on the structure by many racks and many standard subracks, the preferred circuit module of many various difference in functionalitys is installed in each standard subrack, each circuit module adopts blind inserting structure to be installed on the interior backboard of standard subrack, for convenient for installation and maintenance, prevent the module wrong plug, common mounting guide sleeve on circuit module, guide finger is installed on the backboard, by the cooperation of key position on guide pin bushing and the guide finger, realize the installation guiding of module and prevent wrong plug.

The electronic system internal communication generally adopts STD bus to carry out, at present normal accepted standard bus has the VME bus, cpci bus, 1553B bus or the like, the VPX bus is used, the high-speed high-performance bus, adopt the circuit module of VPX bus to be called the VPX module, for convenient for installation and maintenance, prevent the module wrong plug, also used the guiding mis-plug prevention device in the VPX module, existing VPX module guiding mis-plug prevention device, a kind of model of guide finger, 5 kinds of models of guide pin bushing, the installing hole of guide finger on backboard has 5 kinds of key positions, cooperates with the guide pin bushing of 5 kinds of models, and 2 groups of pilot pin guide pin bushings can provide key bit combination in 25, the key position of existing guide finger and guide pin bushing self is fixed, unadjustable, because the module number in the same electronic equipment install bin is more, and different modules is to be designed by different designers, make and make mistakes easily in the guiding mistake proofing design of in system design process module and backboard, and after machining, can't regulate; In addition, when in different system, using same function electronic module,, must change the guide pin bushing of another kind of model in order to use this module because the guiding of the guide pin bushing in different system pin key position is different, in design must the redesign filing.

Along with system becomes increasingly complex, the electronic module of electronic mounting case is more and more, reaches about 40, and 25 key bit combinations that two groups of guide pin bushing guide fingers provide can not meet the demands.

The utility model content

1, technical problem to be solved:

Provide a kind of guiding mistake proofing design between the circuit module and backboard in the electronic system of having simplified at above not enough the utility model, adjustable flexibly circuit module guiding mis-plug prevention device is provided, provide more key bit combination, the novel guiding mis-plug prevention device of electronic module of the compatible VPX bus standard of mounting interface.

2, technical scheme:

The utility model comprises guide finger and guide pin bushing; Guide finger comprises the location liner, guide post, nut, bullet pad, plain cushion; Guide post is installed on the liner of location by 8 ring flanges, positions by the location structure of location on the liner, and the location structure on the liner is by nut, the bullet pad, and plain cushion is formed, and the bullet pad is between nut and plain cushion; Guide pin bushing comprises sleeve, sheath, sunk screw, stop collar; Stop collar links to each other with sheath by sunk screw, and stop collar is limited in sleeve in the sheath; The use that matches with the guide post convex platform of breach on the sleeve.

Described guide post has 8 key positions adjustable on the liner of location.

3, beneficial effect:

Location of the present utility model liner and guide finger combination, by locating the spacing of liner, guide finger has 8 directions adjustable in the liner of location, be installed on the backboard at guide finger on the mounting means, installation dimension and VPX bus standard compatibility are owing to utilize the location liner to carry out the adjusting of key position, do not need to regulate by the different installing hole key of backboard position, make the guide finger of all circuit modules adopt, simplified the feather key position design of backboard, improved efficient with a kind of fitting key position;

Guide pin bushing of the present utility model utilizes the polygon location, and 8 key positions are adjustable, make when assembly is used mutually between multisystem, the anti-wrong plug key position of guiding is adjustable, the guide pin bushing of existing 5 kinds of models is reduced to a kind of, has simplified Module Design, improved the use flexibility of module.

Description of drawings

Fig. 1 a is a guide finger front view of the present utility model;

Fig. 1 b is a guide finger vertical view of the present utility model;

Fig. 1 c is a guide finger end view of the present utility model;

Fig. 2 a is a guide pin bushing front view of the present utility model;

Fig. 2 b is a guide pin bushing vertical view of the present utility model;

Fig. 2 c is a guide pin bushing end view of the present utility model;

Fig. 2 d is a guide pin bushing stereogram of the present utility model;

Fig. 3 a is an another kind of guide pin bushing front view of the present utility model;

Fig. 3 b is an another kind of guide pin bushing vertical view of the present utility model;

Fig. 3 c is an another kind of guide pin bushing end view of the present utility model.

Embodiment

Below in conjunction with the drawings and specific embodiments the utility model is done explanation in further detail.

The utility model comprises guide finger and guide pin bushing.

Shown in Fig. 1 a, Fig. 1 b, Fig. 1 c, guide finger comprises location liner 1, guide post 2, nut 3, bullet pad 4, plain cushion 5; Guide post 2 is installed on the liner 1 of location by 8 ring flanges, positions by the location structure of location on the liner 1, and the location structure on the liner 1 is by nut 3, bullet pad 4, and plain cushion 5 is formed, and bullet pad 4 is between nut 3 and plain cushion 5.

Shown in Fig. 2 a, Fig. 2 b, Fig. 2 c, Fig. 2 d, Fig. 3 a, Fig. 3 b, Fig. 3 c, guide pin bushing comprises sleeve 6, sheath 7, sunk screw 8, stop collar 9; Stop collar 9 links to each other with sheath 7 by sunk screw 8, and stop collar 9 is limited in sleeve 6 in the sheath 7; The use that matches with guide post 2 convex platforms of breach on the sleeve 6.

When the present invention assembles in structure, guide finger is installed on the backboard, backboard is installed between location liner 1 and the plain cushion 5, the installing hole size is with VPX bus standard backboard installing hole, location liner 1 is installed on the backboard by the position limiting structure of one side, guide post 2 is installed on the liner 1 of location by 8 ring flanges, positions by the location structure on the liner 1 of location, and guide post 2 has 8 key positions adjustable on the liner 1 of location; Guide pin bushing is installed on the circuit module, the mounting structure size is with the VPX bus standard, guide pin bushing in use with the supporting use of guide finger, by unclamping sunk screw 8, stop collar 9 is taken out, extract sleeve 6 and rotation, the breach of sleeve 6 is regulated and the corresponding angle of guide post 2 convex platforms, and sleeve 6 is located by polygon with sheath 7, provides 8 key positions adjustable, after regulating sleeve 6 angles, sleeve 6 and stop collar 9 usefulness sunk screws 8 are in place.Thereby realize the guiding and the anti-wrong plug of module by the cooperation of guide post 2 and sleeve 6.

Though the utility model with preferred embodiment openly as above; but they are not to be used for limiting the utility model; anyly be familiar with this skill person; in the spirit and scope that do not break away from the utility model; can do various variations or retouching from working as, what therefore protection range of the present utility model should be defined with the application's claim protection range is as the criterion.

Claims

1. A new type of anti-misplug device for electronic modules, characterized in that: it includes a guide pin and a guide sleeve; the guide pin includes a positioning pad (1), a guide rod (2), a nut (3), and a spring washer (4) , flat pad (5); the guide rod (2) is installed on the positioning liner (1) through the 8-sided flange, and is positioned through the positioning structure on the positioning liner (1), and the positioning on the liner (1) The structure is composed of a nut (3), spring washer (4) and flat washer (5), and the spring washer (4) is located between the nut (3) and the flat washer (5); the guide sleeve includes a sleeve (6), a sheath (7), countersunk screw (8), limit sleeve (9); limit sleeve (9) is connected with sheath (7) through countersunk screw (8), and limit sleeve (9) sleeve (6) ) is limited in the sheath (7); the notch on the sleeve (6) is used in conjunction with the boss on the guide rod (2).

2. The new-type guiding and anti-misplugging device for electronic modules according to claim 1, characterized in that: said guiding rod (2) has 8 adjustable keys on the positioning pad (1).