CN203313570U

CN203313570U - CPCI board card fastening device

Info

Publication number: CN203313570U
Application number: CN2013203566055U
Authority: CN
Inventors: 李霄光; 王巍巍
Original assignee: 771 Research Institute of 9th Academy of CASC
Current assignee: 771 Research Institute of 9th Academy of CASC
Priority date: 2013-06-20
Filing date: 2013-06-20
Publication date: 2013-11-27
Anticipated expiration: 2023-06-20

Abstract

The utility model discloses a CPCI board card fastening device which belongs to the technical field of CPCI board card. The CPCI board card fastening device comprises a frame 1. A number of positioning holes 6 which fix a CPCI board card 7 are arranged on the frame 1. A number of groups of wedge locking mechanisms 2 are arranged on the frame 1. Each wedge locking mechanism 2 is composed of a wedge substrate 3 and a wedge fastener 4. According to the CPCI board card fastening device provided by the utility model, the shape structure of the standard CPCI board card is not changed; through the integrated structure arrangement of the wedge locking mechanisms and the frame, the wedge can reduce the thermal resistance between each locking mechanism and the frame; the heat conductivity of the board card is improved; the CPCI board card can be used in a harsh vibration environment; and the CPCI board card fastening device has the advantages of wide use range, simple structure and convenient manufacture, and is suitable for batch production.

Description

A kind of CPCI board bracing means

Technical field

The utility model belongs to CPCI board processing technique field, is specifically related to a kind of CPCI board bracing means.

Background technology

Standard board based on the CPCI standard has obtained application widely in industry and business, its structure be CPCI on-gauge plate cartoon cross in printed board the standard fixing hole in the printed board front along mounting plate, utilize the edge, both sides of board, by the plastic guide rail insertion of leading, by plug on the CPCI board with print base plate on socket carry out physics and electric being connected, finally by installing hole on fixed head or driver-extractor, board and cabinet are fixed together.

This on-gauge plate card device is merely able to meet general surroundings to be used; at special environment such as high-magnitude, vibrate, impact; under the conditions such as the high low temperature of wide region; may occur that in use components and parts or securing member are loosening, board produces resonance, dropout, hit, the phenomenons such as components and parts inefficacy produce.

The utility model content

In order to overcome the defect of above-mentioned prior art, the purpose of this utility model is to provide a kind of CPCI board bracing means, and this device is applied widely, and production cost is low, can improve heat conductivility and the heat-sinking capability of CPCI board.

The utility model is to be achieved through the following technical solutions:

A kind of CPCI board bracing means, comprise framework, on described framework, is provided with the location hole of some fixation of C PCI boards, on described framework, also is provided with some groups of wedge lock mechanisms, and described wedge lock mechanism is comprised of wedge shape matrix and wedge fasteners.

Described wedge fasteners comprises wedge and screw rod.

Described wedge mechanism is four groups, and is distributed in the surrounding of described framework.

On described framework, also be provided with thermal trough, thermal trough coordinates the closed ruggedized construction of formation with framework.

On described framework, also be provided with blower fan.

On described framework, also be provided with heat-conducting plate.

Described CPCI board be provided with described framework on the fixing hole that adapts of location hole, the CPCI board, by the screw be used in conjunction with location hole and fixing hole, is fixed in framework.

Described framework is made by aluminum material.

Compared with prior art, the utlity model has following useful technique effect:

This practical CPCI board bracing means is under the prerequisite that does not change standard C PCI board contour structures, setting by wedge lock mechanism and framework integrative-structure, can reduce the thermal resistance between retaining mechanism and framework, improved the heat conductivility of board, simultaneously, framework can strengthen the board rigidity, certain thermolysis is also played by wedge lock mechanism, make the CPCI board in severe vibration environment, to use, this device has reduced the design and reconstruction cycle of PCB, has saved research and development and production cost.

Further, can use choice for use sealing or nonocclusive framework to print the use of part according to the requirement of CPCI board heat dissipation, when selecting closed framework, on framework, be provided with radiating groove or blower fan, can improve the heat-sinking capability of board.

CPCI board bracing means of the present utility model, the scope of application is wide, simple in structure, easily manufactured, is suitable for producing in enormous quantities.

The accompanying drawing explanation

Fig. 1 is the structural representation of non-enclosed CPCI board stiffening frame of the present utility model;

Fig. 2 is the structural representation of non-enclosed CPCI board reinforcement assembly of the present utility model;

Fig. 3 is the structural representation of closed CPCI board stiffening frame of the present utility model;

Fig. 4 is the structural representation of closed CPCI board reinforcement assembly of the present utility model;

Fig. 5 is the heat-conducting plate structure schematic diagram of closed CPCI board reinforcement assembly of the present utility model;

Fig. 6 is the assembling schematic diagram of CPCI board reinforcement assembly of the present utility model.

Wherein: 1 is framework; 2 is wedge lock mechanism; 3 is the wedge shape matrix; 4 is wedge fasteners; 5 is thermal trough; 6 is location hole; 7 is the CPCI board; 8 is screw; 9 is heat-conducting plate.

Embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Referring to Fig. 1 and Fig. 2, CPCI board bracing means of the present utility model, comprise framework 1, on described framework 1, be provided with some location holes 6, this location hole 6 is for fixation of C PCI board 7, on described framework 1, also be provided with some groups of wedge lock mechanisms 2, this bracing means in use, has formed non-enclosed CPCI board reinforcement assembly with the CPCI board.

Referring to Fig. 3～5, radiating requirements according to different CPCI boards, the utility model has also comprised a kind of closed CPCI board stiffening frame, except framework 1 and wedge lock mechanism 2 that above-mentioned non-enclosed CPCI board stiffening frame comprises, also on described framework 1, be provided with thermal trough 5, thermal trough 5 coordinates the closed CPCI board ruggedized construction of formation with framework, CPCI board 7 is added and is fixed in enclosed construction inside.In order further to strengthen heat convection, on framework 1, also be provided with heat-conducting plate 9.

Referring to Fig. 6, assembling schematic diagram for this practical CPCI board reinforcement assembly, described wedge lock mechanism 2 is comprised of wedge shape matrix 3 and wedge fasteners 4, wedge lock mechanism 2 is four groups, and be uniformly distributed in the surrounding of described framework 1, the CPCI board is provided with the fixing hole that the location hole 6 with framework 1 adapts, connection by screw 8, CPCI board 7 and framework 1 are fixed up, on described framework 1, be provided with wedge lock mechanism 2, this wedge lock mechanism 2 is comprised of wedge shape matrix 3 and wedge fasteners 4, described wedge fasteners 4 comprises wedge and screw rod, during use, by adjusting the power that screws and the offset displacement of screw rod, board is fixed in the guide groove of corresponding cabinet.

This practical CPCI board bracing means, carry out board and cabinet locking by the wedge mechanism arranged on framework fasteningly, by retraining Relative Deflection between printed board edge and fixed body, improves the anti-seismic performance of board.Make under the prerequisite that does not change standard C PCI board contour structures, make the CPCI board in severe vibration environment, to use; The design of wedge lock mechanism and fixed frame integrative-structure, can reduce the thermal resistance between locking strip and framework simultaneously, improved the heat conductivility of board.

Framework can be made by the aluminium prepared material, aluminum frame can be designed as closed or non-enclosed structure, chip surface and closed framework front can be flexible coupling by Heat Conduction Material, heat is conducted by aluminum frame, sealed type framework surface also can arrange radiating groove or increase blower fan simultaneously, is used for improving the board heat-sinking capability.

CPCI board bracing means of the present utility model has the following advantages:

1, the novel reinforced design that forms on the basis of standard C PCI board structure profile of the utility model, utilize the design of wedge lock structure and framework one to improve the characteristic of the anti-severe mechanical environment of CPCI board;

2, the utility model utilizes the design of wedge structure and framework one simultaneously, in conjunction with the heat-sinking capability that increases radiating groove or blower fan and strengthened board;

3, under the prerequisite that does not change CPCI board standard profile, CPCI board range of application is expanded to the adverse circumstances field, expanded the scope of application of CPCI board.

Claims

1. CPCI board bracing means, it is characterized in that, comprise framework (1), on described framework (1), be provided with the location hole (6) of some fixation of C PCI boards (7), on described framework (1), also be provided with some groups of wedge lock mechanisms (2), described wedge lock mechanism (2) is comprised of wedge shape matrix (3) and wedge fasteners (4).

2. a kind of CPCI board bracing means according to claim 1, is characterized in that, described wedge fasteners (4) comprises wedge and screw rod.

3. a kind of CPCI board bracing means according to claim 1, is characterized in that, described wedge mechanism (2) is four groups, and be distributed in the surrounding of described framework (1).

4. a kind of CPCI board bracing means according to claim 1, is characterized in that, on described framework (1), also is provided with thermal trough (5), and thermal trough (5) coordinates the closed ruggedized construction of formation with framework (1).

5. a kind of CPCI board bracing means according to claim 4, is characterized in that, described framework also is provided with blower fan on (1).

6. a kind of CPCI board bracing means according to claim 4, is characterized in that, on described framework (1), also is provided with heat-conducting plate (9).

7. a kind of CPCI board bracing means according to claim 1, it is characterized in that, described CPCI board (7) be provided with described framework (1) on the fixing hole that adapts of location hole (6), CPCI board (7), by the screw (8) be used in conjunction with location hole (6) and fixing hole, is fixed in framework (1).

8. a kind of CPCI board bracing means according to claim 1, is characterized in that, described framework (1) is made by aluminum material.