CN220023389U

CN220023389U - PCB board groove locking device with heat radiation structure

Info

Publication number: CN220023389U
Application number: CN202321482104.1U
Authority: CN
Inventors: 王付华; 王辉
Original assignee: Shanghai Fuhua Technology Group Co ltd
Current assignee: Shanghai Fuhua Technology Group Co ltd
Priority date: 2023-06-12
Filing date: 2023-06-12
Publication date: 2023-11-14
Anticipated expiration: 2033-06-12

Abstract

The utility model discloses a PCB slot locking device with a heat dissipation structure, which comprises a screw, wherein a front wedge block, a first locking block, a second locking block, a third locking block and a rear wedge block are sequentially arranged on the screw, and the rear wedge block is arranged on the screw through an internal thread sleeve; and radiating fins are arranged on the side surfaces of the front wedge block, the first locking block, the second locking block, the third locking block and the rear wedge block. According to the utility model, the radiating fins are arranged on the side surfaces of the front wedge block, the first locking block, the second locking block, the third locking block and the rear wedge block, so that the conduction area is increased, and the radiating effect is improved; the utility model is mainly applied to air-cooled chassis, non-closed chassis and chassis with air convection.

Description

PCB board groove locking device with heat radiation structure

Technical Field

The utility model relates to the technical field of locking of PCB grooves, in particular to a locking device of a PCB groove with a heat dissipation structure.

Background

At present, a large amount of PCB integrated modules and 19-inch plug boxes are used in the electronic application industry, and in order to ensure the installation between a PCB daughter board and a motherboard, a locking device is usually used for the daughter board independently so as to prevent the PCB board from falling off from a slot of the plug box due to vibration and impact.

In the prior art, the locking device for the PCB groove disclosed by the publication No. CN204482206U, the end surfaces of the two wedges and the middle locking block are inclined surfaces, the middle locking block can slide outwards along the contacted inclined surface, the locking device and the PCB are arranged in the slot together, and the width of the locking device is increased by the outwards sliding of the middle locking block, so that the PCB is locked in the slot of the plug box; however, the existing locking device has poor heat dissipation effect, and if the locking device is arranged in an air-cooled case or a non-closed case, the locking device has air convection in the case; the heat dissipation efficiency cannot be improved well, and therefore, the PCB groove locking device with the heat dissipation structure is provided.

Disclosure of Invention

The utility model aims to provide a PCB slot locking device with a heat dissipation structure, which is used for solving the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the PCB groove locking device with the heat radiation structure comprises a screw, wherein a front wedge block, a first locking block, a second locking block, a third locking block and a rear wedge block are sequentially arranged on the screw, and the rear wedge block is arranged on the screw through an internal thread sleeve; and radiating fins are arranged on the side surfaces of the front wedge block, the first locking block, the second locking block, the third locking block and the rear wedge block.

Preferably, a backstop nut is arranged at one end of the screw rod, which is positioned at the rear wedge block.

Preferably, one end of the screw rod, which is positioned at the front wedge block, is provided with a knob structure.

Preferably, a gasket and an elastic washer are arranged at one end of the screw rod, which is positioned at the front wedge block.

Preferably, the first locking block, the second locking block and the third locking block are all provided with through grooves; the end surfaces of the second locking block, which are respectively connected with the first locking block and the third locking block, are inclined surfaces and are mutually matched, the end surfaces of the front wedge block, which are connected with the first locking block, are inclined surfaces and are mutually matched, and the end surfaces of the rear wedge block, which are connected with the third locking block, are inclined surfaces and are mutually matched.

Compared with the prior art, the utility model has the beneficial effects that: the side surfaces of the front wedge block, the first locking block, the second locking block, the third locking block and the rear wedge block are provided with radiating fins, so that the conduction area is increased, and the radiating effect is improved; the utility model is mainly applied to air-cooled chassis, non-closed chassis and chassis with air convection.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic view of the structure of the screw and internally threaded sleeve of the present utility model;

FIG. 4 is a top view of FIG. 3 of the present utility model;

figure 5 is a cross-sectional view of the utility model A-A.

In the figure: 1. a screw; 2. a front wedge; 3. a first locking block; 4. the second locking block; 5. a third locking block; 6. a rear wedge; 7. a stop nut; 8. a gasket; 9. an internally threaded sleeve; 10. a heat radiation fin; 11. and an elastic gasket.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.

Referring to fig. 1-5, in an embodiment of the present utility model, a locking device for a PCB board slot with a heat dissipation structure includes a screw 1, a front wedge 2, a first locking block 3, a second locking block 4, a third locking block 5 and a rear wedge 6 are sequentially installed on the screw 1, and the rear wedge 6 is installed on the screw 1 through an internal threaded sleeve 9; the side surfaces of the front wedge block 2, the first locking block 3, the second locking block 4, the third locking block 5 and the rear wedge block 6 are respectively provided with radiating fins 10, and the side surfaces of the front wedge block, the first locking block, the second locking block, the third locking block and the rear wedge block are respectively provided with radiating fins, so that the conduction area is increased, and the radiating effect is improved; the utility model is mainly applied to the air-cooled chassis, the non-closed chassis and the chassis with air convection; one end of the screw 1, which is positioned at the rear wedge block 6, is provided with a backstop nut 7; one end of the screw 1, which is positioned at the front wedge block 2, is provided with a knob structure; one end of the screw 1, which is positioned at the front wedge block 2, is provided with a gasket 8 and an elastic gasket 11; the first locking block 3, the second locking block 4 and the third locking block 5 are provided with through grooves; the end surfaces of the second locking block 4, which are respectively connected with the first locking block 3 and the third locking block 5, are inclined surfaces and mutually matched, the end surfaces of the front wedge block 2, which are connected with the first locking block 3, are inclined surfaces and mutually matched, and the end surfaces of the rear wedge block 6, which are connected with the third locking block 5, are inclined surfaces and mutually matched; the screw 1 is rotated, so that the front wedge block 2, the first locking block 3, the second locking block 4, the third locking block 5 and the rear wedge block 6 are mutually extruded, thereby realizing the locking function.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a PCB board groove locking device with heat radiation structure, includes screw rod (1), its characterized in that: the screw (1) is sequentially provided with a front wedge block (2), a first locking block (3), a second locking block (4), a third locking block (5) and a rear wedge block (6), and the rear wedge block (6) is arranged on the screw (1) through an internal threaded sleeve (9);

the side surfaces of the front wedge block (2), the first locking block (3), the second locking block (4), the third locking block (5) and the rear wedge block (6) are respectively provided with radiating fins (10).

2. The locking device for a PCB slot with a heat dissipation structure of claim 1, wherein: one end of the screw rod (1) positioned at the rear wedge block (6) is provided with a backstop nut (7).

3. The PCB slot locking apparatus with heat dissipation structure of claim 1 or 2, wherein: one end of the screw rod (1) positioned at the front wedge block (2) is provided with a knob structure.

4. A PCB slot locking apparatus with heat dissipation structure as set forth in claim 3, wherein: one end of the screw (1) positioned at the front wedge block (2) is provided with a gasket (8) and an elastic washer (11).

5. The locking device for a PCB slot with a heat dissipation structure of claim 1, wherein: the first locking block (3), the second locking block (4) and the third locking block (5) are provided with penetrating grooves; the end faces of the second locking block (4) at the joint of the first locking block (3) and the third locking block (5) are inclined planes and are mutually matched, the end faces of the front wedge block (2) and the first locking block (3) at the joint of the front wedge block and the third locking block (5) are inclined planes and are mutually matched, and the end faces of the rear wedge block (6) and the third locking block (5) at the joint of the rear wedge block and the third locking block are inclined planes and are mutually matched.