Heat dissipation structure of power supply module

Abstract

The utility model provides a power module heat dissipation structure, which belongs to the technical field of switching power supplies and comprises an upper shell and a lower shell, the upper shell and the lower shell are connected with each other, one end of the upper shell and one end of the lower shell are provided with a heat dissipation assembly, and the two ends of the upper shell and the two ends of the lower shell are provided with connecting assemblies. When glue is injected into the upper shell and the lower shell, the glue is solidified and expanded in the upper shell and the lower shell, the disposable protective baffle on the outer side is jacked off, heat is discharged from the heat dissipation holes, the effect of more uniform heat dissipation is achieved, meanwhile, the heat dissipation degree is increased, and the problem of heat accumulation cannot be caused; and the connecting bolts are rotated to combine the plurality of groups of upper shells and lower shells into shell whole bodies with different lengths through the connecting studs, so that the problem that the length of the shell body is fixed, and the connection and use of lines with different lengths are inconvenient is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of switching power supplies, in particular to a heat dissipation structure of a power supply module. Background Art

[0002] The importance of heat dissipation for switching power supply modules cannot be ignored. When the switching power supply module is overheated, it may cause overheating and damage to certain key components such as capacitors and inductors, and even cause safety accidents such as fire. Through good heat dissipation design, it can ensure that the power module operates within the normal operating temperature range to prevent overheating and damage.

[0003] After searching, in the prior art, the Chinese patent with patent announcement number CN210351831U discloses "a switching power supply housing and a switching power supply, the switching power supply housing comprises: a housing body, having a receiving cavity for receiving electronic components of the switching power supply, and an opening connected to the receiving cavity; an end cover, arranged at the opening to close the opening; the end cover has a glue injection hole connected to the receiving cavity, the glue injection hole is used to fill the receiving cavity with waterproof glue, the above-mentioned switching power supply housing, the receiving cavity of the housing body is used to receive electronic components, the opening of the housing body is covered by the end cover, and the receiving cavity of the housing body is filled with waterproof glue through the glue injection hole on the end cover, so as to wrap the electronic components with the waterproof glue to play a role of sealing and waterproofing, the heat of the switching power supply is mainly generated by the electronic components, and the heat generated by the electronic components is dissipated to the outside through the waterproof glue and the switching power supply housing. Compared with the prior art, the switching power supply housing of this utility model has a better heat dissipation effect, which is conducive to extending the service life of the switching power supply", but there are still the following defects:

[0004] (1) The shell body is a closed structure as a whole. When glue is injected into the interior through the glue injection hole, the glue can fill the interior. The heat dissipation is obviously insufficient only through the waterproof glue and the shell body. In addition, the heat dissipation is uneven, which easily leads to heat accumulation.

[0005] The shell body is assembled into two parts, but the length is fixed, which is not convenient for connecting lines of different lengths.

[0006] Therefore, we make improvements to this and propose a power module heat dissipation structure. Utility Model Content

[0007] The purpose of the utility model is to address the problem that the existing shell body is a closed structure as a whole. When glue is injected into the interior through the glue injection hole, the glue can fill the interior. The heat is only dissipated outwards through the waterproof glue and the shell body, and the heat dissipation is obviously insufficient. In addition, the heat dissipation is uneven, which easily leads to heat accumulation. The length of the shell body is fixed, which is inconvenient to use for connecting lines of different lengths.

[0008] In order to achieve the above-mentioned utility model purpose, the utility model provides the following technical solutions:

[0009] The power module heat dissipation structure is used to improve the above problems.

[0010] The utility model is specifically as follows:

[0011] It comprises an upper shell and a lower shell, wherein the upper shell and the lower shell are connected to each other, a heat dissipation component is disposed at one end of the upper shell and the lower shell, and a connection component is disposed at both ends of the upper shell and the lower shell;

[0012] The heat dissipation assembly includes an end cover, a glue injection hole, a heat dissipation hole and a disposable protective baffle. The end cover is fixed to one end of the upper shell and the lower shell by bolts. The glue injection hole is opened on the surface of the end cover and passes through the end cover. The heat dissipation holes are opened on the sides of the upper shell and the lower shell. The heat dissipation holes are symmetrically arranged on both sides of the upper shell and the lower shell. One side of the disposable protective baffle is a raised structure and the disposable protective baffle is clamped in the heat dissipation hole through the raised structure.

[0013] As a preferred technical solution of the utility model, the connecting assembly includes a connecting groove, a connecting stud, a connecting bolt, a connecting protrusion and a connecting socket, the connecting groove is opened at one end of the upper shell body and the lower shell body, one end of the connecting stud is arranged on the inner side of the connecting groove, the connecting bolt is arranged on the connecting stud, the connecting protrusion is fixedly arranged at the other end of the upper shell body and the lower shell body, the connecting socket is opened on the outside of the connecting protrusion, and the connecting stud is arranged in one group of connecting grooves between the upper shell body and the lower shell body and another group of connecting sockets between the upper shell body and the lower shell body.

[0014] As a preferred technical solution of the utility model, both ends of the upper shell and the lower shell are provided with fixing holes, fixing bolts are arranged inside the fixing holes, and one end of the upper shell and the lower shell is provided with a cover, and the cover is installed at the end of the upper shell and the lower shell by fixing bolts.

[0015] As a preferred technical solution of the utility model, a limiting groove is provided at the connection between the lower shell and the upper shell, a limiting block is fixedly provided on one side of the bottom of the upper shell, and the limiting block and the limiting groove cooperate with each other.

[0016] As a preferred technical solution of the utility model, a sealing gasket is arranged between the end cover and one end of the upper shell and the lower shell, and the sealing gasket is made of rubber material and has the same shape as the end cover.

[0017] As a preferred technical solution of the utility model, a wiring hole is opened on the surface of the end cover, and a tightening ring is arranged inside the wiring hole, and the tightening ring is arranged in a circular ring shape.

[0018] As a preferred technical solution of the utility model, a sealing block is fixedly provided on one side of the sealing cover, the number of the sealing blocks is four groups corresponding to the connecting grooves, and the length of the sealing block is less than the depth of the connecting groove.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] In the solution of the utility model:

[0021] 1. Through the heat dissipation assembly, multiple groups of heat dissipation holes are opened on both sides of the upper shell and the lower shell. When glue is injected into the upper shell and the lower shell, the glue solidifies and expands inside the upper shell and the lower shell, pushing off the disposable protective baffle on the outside, and the heat is discharged from the heat dissipation holes, achieving a more uniform heat dissipation effect, while increasing the degree of heat dissipation, and will not cause the problem of heat accumulation;

[0022] 2. Through the connection assembly, different lengths of upper shells and lower shells are often required in different use occasions. At this time, multiple sets of upper shells and lower shells can be combined into shells of different lengths by rotating the connection bolts through the connection studs through the connection grooves and connection protrusions at both ends of the upper shell and the lower shell, thereby solving the problem that the length of the shell body is fixed and it is inconvenient to connect and use lines of different lengths;

[0023] 3. Through the provided cover, the cover can be installed at the ends of the upper shell and the lower shell by fixing bolts to seal one end of the upper shell and the lower shell;

[0024] 4. The upper shell and the lower shell can be combined with each other by means of the limit blocks and limit grooves, and the gaps in the assembly process of the upper shell and the lower shell can be filled with glue. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the heat dissipation structure of the power module provided by the utility model;

[0026] Figure 2 This is a schematic diagram of the overall exploded structure of the power module heat dissipation structure provided by the utility model;

[0027] Figure 3 This is a schematic diagram of the overall exploded structure of the power module heat dissipation structure provided by the utility model;

[0028] Figure 4 A schematic diagram of a partial explosion structure of the heat dissipation structure of the power module provided by the utility model;

[0029] Figure 5 This is a schematic diagram of the partial explosion structure of the power module heat dissipation structure provided by the utility model.

[0030] Indicated in the figure:

[0031] 1. Upper shell; 2. Lower shell; 3. Heat dissipation assembly; 4. Connection assembly; 301. End cover; 302. Glue injection hole; 303. Heat dissipation hole; 304. Disposable protective baffle; 401. Connection groove; 402. Connection stud; 403. Connection bolt; 404. Connection protrusion; 405. Connection jack; 5. Fixing hole; 6. Fixing bolt; 7. Cover; 8. Limiting groove; 9. Limiting block; 10. Sealing gasket; 11. Wiring hole; 12. Clamping ring; 13. Sealing block. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0033] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, this embodiment proposes a power module heat dissipation structure, including an upper shell 1 and a lower shell 2, the upper shell 1 and the lower shell 2 are connected to each other, a heat dissipation component 3 is provided at one end of the upper shell 1 and the lower shell 2, and a connection component 4 is provided at both ends of the upper shell 1 and the lower shell 2;

[0037] The heat dissipation assembly 3 includes an end cover 301, a glue injection hole 302, a heat dissipation hole 303 and a disposable protective baffle 304. The end cover 301 is fixed to one end of the upper shell 1 and the lower shell 2 by bolts. The glue injection hole 302 is opened on the surface of the end cover 301 and penetrates the end cover 301. The heat dissipation hole 303 is opened on the side of the upper shell 1 and the lower shell 2. The heat dissipation holes 303 are symmetrically arranged on both sides of the upper shell 1 and the lower shell 2. One side of the disposable protective baffle 304 is a convex structure and the disposable protective baffle 304 is clamped in the heat dissipation hole 303 through the convex structure. When glue is injected into the interior of the upper shell 1 and the lower shell 2, the glue solidifies and expands inside the upper shell 1 and the lower shell 2, and the disposable protective baffle 304 on the outside is pushed off, and the heat is discharged from the heat dissipation hole 303, thereby achieving a more uniform heat dissipation effect and increasing the degree of heat dissipation.

[0038] like Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the connecting component 4 includes a connecting groove 401, a connecting stud 402, a connecting bolt 403, a connecting protrusion 404 and a connecting socket 405, the connecting groove 401 is opened at one end of the upper shell 1 and the lower shell 2, one end of the connecting stud 402 is arranged on the inner side of the connecting groove 401, the connecting bolt 403 is arranged on the connecting stud 402, the connecting protrusion 404 is fixedly arranged at the other end of the upper shell 1 and the lower shell 2, the connecting socket 405 is opened on the outside of the connecting protrusion 404, the connecting stud 402 is arranged in a group of connecting grooves 401 between the upper shell 1 and the lower shell 2 and the connecting socket 405 of another group of the upper shell 1 and the lower shell 2, through the connecting grooves 401 and the connecting protrusions 404 at both ends of the upper shell 1 and the lower shell 2, the connecting bolt 403 is rotated to combine multiple groups of upper shells 1 and lower shells 2 into shell bodies of different lengths through the connecting studs 402.

[0039] like Figure 3 As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, fixing holes 5 are opened at both ends of the upper shell 1 and the lower shell 2, fixing bolts 6 are arranged inside the fixing holes 5, and a cover 7 is arranged at one end of the upper shell 1 and the lower shell 2. The cover 7 is installed at the end of the upper shell 1 and the lower shell 2 by the fixing bolts 6. The fixing bolts 6 install the cover 7 at the end of the upper shell 1 and the lower shell 2 to seal one end of the upper shell 1 and the lower shell 2.

[0040] like Figure 5 As shown, as a preferred embodiment, on the basis of the above method, further, a limiting groove 8 is opened at the connection between the lower shell 2 and the upper shell 1, and a limiting block 9 is fixedly arranged on the bottom side of the upper shell 1, and the limiting block 9 and the limiting groove 8 cooperate with each other. The upper shell 1 and the lower shell 2 are mutually clamped by the limiting block 9 and the limiting groove 8 to prevent shaking.

[0041] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, a sealing gasket 10 is arranged between the end cover 301 and one end of the upper shell 1 and the lower shell 2. The sealing gasket 10 is made of rubber material, and the sealing gasket 10 has the same shape as the end cover 301. The sealing gasket 10 ensures the sealing of one end of the upper shell 1 and the lower shell 2 to prevent water from entering.

[0042] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, a wiring hole 11 is opened on the surface of the end cover 301, and a closing ring 12 is arranged inside the wiring hole 11. The closing ring 12 is arranged in a circular ring shape, and the internal line is connected through the wiring hole 11. The closing ring 12 can prevent the line from being disrupted.

[0043] like Figure 2 As shown, as a preferred embodiment, on the basis of the above method, further, a sealing block 13 is fixedly provided on one side of the cover 7, the number of the sealing blocks 13 is four groups corresponding to the connecting grooves 401, and the length of the sealing block 13 is less than the depth of the connecting groove 401, so as to block the upper shell 1 and the lower shell 2 of the last section to prevent glue from leaking out of the connecting groove 401 of the last section.

[0044] Specifically, when the heat dissipation structure of the power module is in use: in different usage scenarios, through the connecting grooves 401 and the connecting protrusions 404 at both ends of the upper shell 1 and the lower shell 2, the connecting bolts 403 are rotated to connect the studs 402 to combine multiple groups of upper shells 1 and lower shells 2 into shell bodies of different lengths. The sealing gasket 10 ensures the sealing of one end of the upper shell 1 and the lower shell 2 to prevent water from entering. When glue is injected through the glue injection hole 302, the glue solidifies and expands inside the upper shell 1 and the lower shell 2, pushing off the disposable protective baffle 304 on the outside, and the heat is discharged from the heat dissipation hole 303, achieving a more uniform heat dissipation effect and increasing the degree of heat dissipation. The gaps in the assembly process of the upper shell 1 and the lower shell 2 are filled with glue, and the fixing bolts 6 install the cover 7 at the ends of the upper shell 1 and the lower shell 2 to seal one end of the upper shell 1 and the lower shell 2.

[0045] All technical features in this embodiment can be freely combined according to actual needs.

[0046] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A power module heat dissipation structure, comprising an upper housing (1) and a lower housing (2), characterized in that: The upper shell (1) and the lower shell (2) are connected to each other, a heat dissipation component (3) is provided at one end of the upper shell (1) and the lower shell (2), and a connection component (4) is provided at both ends of the upper shell (1) and the lower shell (2); The heat dissipation assembly (3) comprises an end cover (301), a glue injection hole (302), a heat dissipation hole (303) and a disposable protective baffle (304); the end cover (301) is fixedly arranged at one end of the upper shell (1) and the lower shell (2) by means of bolts; the glue injection hole (302) is provided on the surface of the end cover (301) and penetrates the end cover (301); the heat dissipation hole (303) is provided on the side surfaces of the upper shell (1) and the lower shell (2); the heat dissipation holes (303) are symmetrically arranged on both sides of the upper shell (1) and the lower shell (2); one side of the disposable protective baffle (304) is a protruding structure and the disposable protective baffle (304) is snap-fitted into the heat dissipation hole (303) via the protruding structure.

2. A power module heat dissipation structure according to claim 1, characterized in that: The connection assembly (4) comprises a connection groove (401), a connection stud (402), a connection bolt (403), a connection protrusion (404) and a connection socket (405); the connection groove (401) is opened at one end of the upper shell (1) and the lower shell (2); one end of the connection stud (402) is arranged on one side of the interior of the connection groove (401); the connection bolt (403) is arranged on the connection stud (402); the connection protrusion (404) is fixedly arranged at the other end of the upper shell (1) and the lower shell (2); the connection socket (405) is opened on the outside of the connection protrusion (404); the connection stud (402) is arranged in one group of connection grooves (401) between the upper shell (1) and the lower shell (2) and in another group of connection sockets (405) between the upper shell (1) and the lower shell (2).

3. A power module heat dissipation structure according to claim 1, characterized in that: Both ends of the upper shell (1) and the lower shell (2) are provided with fixing holes (5), and fixing bolts (6) are arranged inside the fixing holes (5). One end of the upper shell (1) and the lower shell (2) is provided with a cover (7), and the cover (7) is installed on the ends of the upper shell (1) and the lower shell (2) through the fixing bolts (6).

4. A power module heat dissipation structure according to claim 1, characterized in that: A limiting groove (8) is provided at the connection between the lower shell (2) and the upper shell (1), and a limiting block (9) is fixedly provided on one side of the bottom of the upper shell (1), and the limiting block (9) and the limiting groove (8) cooperate with each other.

5. The power module heat dissipation structure according to claim 1, characterized in that: A sealing gasket (10) is provided between the end cover (301) and one end of the upper shell (1) and the lower shell (2); the sealing gasket (10) is made of a rubber material, and the sealing gasket (10) has the same shape as the end cover (301).

6. A power module heat dissipation structure according to claim 1, characterized in that: A wiring hole (11) is provided on the surface of the end cover (301), a constricting ring (12) is provided inside the wiring hole (11), and the constricting ring (12) is arranged in a circular ring shape.

7. A power module heat dissipation structure according to claim 3, characterized in that: A sealing block (13) is fixedly provided on one side of the sealing cover (7), the sealing blocks (13) being provided in four groups and corresponding to the connecting grooves (401), and the length of the sealing blocks (13) being less than the depth of the connecting grooves (401).

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