Dismounting and positioning structure for high-power-density module power supply aging radiator

Abstract

The utility model discloses a disassembly and assembly positioning structure for a high-power-density module power supply aging radiator, relates to the technical field of radiator disassembly and assembly structures, and solves the technical problem that a radiator used in an existing module power supply aging process is inconvenient to disassemble and assemble quickly. The structure comprises a fixed base and a positioning mechanism, the fixed base is fixed on a circuit board used for installing the module power supply, and the fixed base is clamped on the peripheral side of the module power supply; the positioning mechanism comprises a first positioning assembly and a second positioning assembly, the first positioning assembly and the second positioning assembly are fixed to the two sides of the fixed base respectively, and the first positioning assembly and the second positioning assembly are both used for limiting and fixing the radiator to the module power supply in an elastic pressing mode. In the process that the radiator is rotated to slide into / out of the first positioning assembly and the second positioning assembly, the first positioning assembly and the second positioning assembly perform elastic pressing movement to limit / release the radiator, so that the radiator is quickly disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to the field of heat sink assembly and disassembly structure technology, and in particular to an assembly and disassembly positioning structure for heat sinks used in high power density module power supply aging. Background Technology

[0002] Modular power supplies are power supplies that can be directly mounted on printed circuit boards. They feature isolation, protection (short circuit protection, overvoltage protection, undervoltage protection, overcurrent protection, and other protections), voltage switching, voltage regulation, and noise reduction. Modular power supplies are widely used in various fields of social production and daily life, including aerospace, locomotives and ships, power generation and distribution, telecommunications, and scientific research.

[0003] Modular power supplies with stud mounting holes typically require a heatsink to be installed during the aging process. The heatsink is installed by screwing screws onto the four corners of the heatsink to the studs on the modular power supply. Installing the heatsink requires tools such as screws, electric screwdrivers, or power screwdrivers, and is relatively cumbersome and time-consuming. Furthermore, the heatsink must be tightly fitted to the modular power supply during installation. The heatsinks currently used in the aging process for modular power supplies are cumbersome to install and remove, have poor usability, and can negatively impact work efficiency.

[0004] In the process of developing this utility model, the applicant discovered at least the following problems in the prior art:

[0005] The heat sinks used in the aging process of existing modular power supplies are not convenient for quick disassembly and assembly. Utility Model Content

[0006] The purpose of this invention is to provide a disassembly and positioning structure for heat sinks used in the aging process of high-power-density modular power supplies, thereby solving the technical problem that heat sinks used in the existing modular power supply aging process are inconvenient to disassemble and assemble quickly. The various technical effects of the preferred solutions among the many technical solutions provided by this invention are detailed below.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] This utility model provides a disassembly and positioning structure for a heat sink used in the aging of a high power density modular power supply, including a fixed base and a positioning mechanism. The fixed base is fixed on a circuit board for mounting the modular power supply, and the fixed base is engaged with the periphery of the modular power supply. The positioning mechanism includes a first positioning component and a second positioning component, which are respectively fixed on both sides of the fixed base. Both the first positioning component and the second positioning component are used to limit and fix the heat sink to the modular power supply by spring pressing.

[0009] Optionally, the fixing base includes a first base and a second base, the first base and the second base are arranged symmetrically, and an installation area is formed between the notch of the first base and the notch of the second base, the installation area being used to fix the module power supply.

[0010] Optionally, both the notch in the first base and the notch in the second base are provided with positioning angles, which correspond to the four corners of the module power supply and are used to limit and fix the four corners of the module power supply.

[0011] Optionally, both the first base and the second base are provided with mounting slots, which are matched with the first positioning component and the second positioning component, and are used to fix the first positioning component and the second positioning component.

[0012] Optionally, both the first positioning component and the second positioning component include a connecting part and a positioning part, wherein the connecting part and the positioning part cooperate with each other to form a "7" shaped structure;

[0013] When the first positioning component is fixed in the mounting groove of the first base, the first positioning component and the first base cooperate to form a first bayonet, and the opening direction of the first bayonet is towards the first side of the fixed base.

[0014] When the second positioning component is fixed in the mounting groove of the second base, the second positioning component and the second base cooperate to form a second bayonet, and the opening direction of the second bayonet is towards the second side of the fixed base.

[0015] Optionally, both the first positioning component and the second positioning component include a positioning post, which is fixed on the positioning part. A spring bead is provided on the first end of the positioning post, and the spring bead can extend and retract on the positioning post.

[0016] Optionally, the connecting part and the positioning part are an integral structure.

[0017] Optionally, the radiator includes a cooling fan, a cooling fin assembly, and a positioning plate. The cooling fan is fixed to the cooling fin assembly. A first positioning edge is fixed to a first side of the cooling fin assembly, and a second positioning edge is fixed to a second side of the cooling fin assembly. Both the first and second positioning edges are used to fix the positioning plate. The positioning plate is used to cooperate with the positioning mechanism to fix the radiator.

[0018] Optionally, the positioning groove on the positioning plate cooperates with and corresponds to the spring ball to limit and fix the heat sink.

[0019] Implementing one of the above-described technical solutions of this utility model has the following advantages or beneficial effects:

[0020] This invention enables quick assembly and disassembly of the radiator by having the first and second positioning components perform spring-loaded movements during the process of rotating and sliding the radiator into / out of the first and second positioning components, thereby limiting / releasing the radiator. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0022] Figure 1 This is a first perspective view of an embodiment of the present utility model;

[0023] Figure 2 This is a second perspective view of an embodiment of the present utility model;

[0024] Figure 3 This is an exploded view of an embodiment of the present utility model;

[0025] Figure 4 This is a first connection diagram of the fixed base and the positioning mechanism according to an embodiment of the present utility model;

[0026] Figure 5 This is a second connection diagram of the fixed base and the positioning mechanism according to an embodiment of the present utility model;

[0027] Figure 6 This is a schematic diagram of the heat sink structure according to an embodiment of the present invention.

[0028] In the diagram: 1. Fixed base; 11. First base; 12. Second base; 13. Notch; 14. Positioning angle; 15. Mounting slot; 2. Positioning mechanism; 21. First positioning component; 22. Second positioning component; 23. First bayonet; 24. Second bayonet; 201. Connecting part; 202. Positioning part; 203. Positioning post; 204. Spring ball; 3. Module power supply; 4. Circuit board; 5. Heat sink; 51. Cooling fan; 52. Heat sink fin assembly; 521. First positioning edge; 522. Second positioning edge; 53. Positioning piece; 531. Positioning groove. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, various exemplary embodiments described below will be referenced to the accompanying drawings, which form part of the exemplary embodiments, illustrating various exemplary embodiments that may be adopted to implement this utility model. Unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. It should be understood that they are merely examples of processes, methods, and apparatuses consistent with some aspects of this utility model disclosed as detailed in the appended claims, and other embodiments may be used, or structural and functional modifications may be made to the embodiments listed herein without departing from the scope and spirit of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the referred element must have a specific orientation, or be constructed and operated in a specific orientation. The terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. The term "multiple" means two or more. The terms "connected" and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, integral connections, mechanical connections, electrical connections, communication connections, direct connections, indirect connections through an intermediate medium, and can be the internal connection of two elements or the interaction relationship between two elements. The term "and / or" includes any and all combinations of one or more of the related listed items. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] To illustrate the technical solution described in this utility model, specific embodiments are described below, showing only the parts related to the embodiments of this utility model.

[0032] Example 1:

[0033] like Figure 1As shown, this utility model provides a disassembly and positioning structure for a heat sink used in the aging of a high power density modular power supply. It includes a fixed base 1 and a positioning mechanism 2. The fixed base 1 is fixed to a circuit board 4 for mounting a modular power supply 3, and the fixed base 1 engages with the periphery of the modular power supply 3. The positioning mechanism 2 includes a first positioning component 21 and a second positioning component 22, which are respectively fixed to both sides of the fixed base 1. Both the first positioning component 21 and the second positioning component 22 are used to limit and fix the heat sink 5 to the modular power supply 3 by spring compression. Specifically, the fixed base 1 is fixed to the circuit board 4 and limits and fixes the periphery of the modular power supply 3 on the circuit board 4, so that when the heat sink 5 is installed on the fixed base 1, the heat sink 5 can be tightly attached to the modular power supply 3. The fixing method used to fix the fixed base 1 to the circuit board 4 includes screw fixing, bolt fixing, welding fixing, or adhesive fixing, etc. The first positioning component 21 and the second positioning component 22 are respectively fixed on both sides of the fixed base 1, so that the first positioning component 21 can limit and fix the first side of the heat sink 5, and the second positioning component 22 can limit and fix the second side of the heat sink 5. When the first positioning component 21 and the second positioning component 22 limit and fix the heat sink 5, the limiting and fixing method is adopted. That is, during the process of installing the heat sink 5 on the module power supply 3, the edge of the heat sink 5 compresses the positioning posts 203 of the first positioning component 21 and the second positioning component 22 (as described below). When the heat sink 5 is rotated into the installation position, the compressed positioning posts 203 are released, and the positioning posts 203 press and fix the side of the heat sink 5. In addition, the circuit board 4 is electrically connected to the module power supply 3 and the heat sink 5. The module power supply 3 provides power to the circuit board 4, and the circuit board 4 can control the heat sink 5 to perform heat dissipation.

[0034] This invention enables the rapid assembly and disassembly of the radiator 5 by having the first positioning component 21 and the second positioning component 22 perform spring-pressing movements during the process of rotating and sliding the radiator 5 into / out of the first positioning component 21 and the second positioning component 22, thereby limiting / releasing the radiator 5.

[0035] As an optional implementation method, such as Figure 3As shown, the fixing base 1 includes a first base 11 and a second base 12. The first base 11 and the second base 12 are symmetrically arranged. A mounting area is formed between the notch 13 of the first base 11 and the notch 13 of the second base 12. The mounting area is used to fix the module power supply 3. Specifically, the opening direction of the notch 13 on the first base 11 faces the second base 12, and the opening direction of the notch 13 on the second base 12 faces the first base 11. Since the first base 11 and the second base 12 are symmetrically arranged, the notch 13 of the first base 11 and the notch 13 of the second base 12 correspond to each other, forming a mounting area between the first base 11 and the second base 12. The size and shape of the mounting area match the size and shape of the module power supply 3, facilitating the installation of the module power supply 3 within the mounting area and its fixed connection with the circuit board 4. This allows the heat sink 5 on the module power supply 3 to be limited and fixed by the first positioning component 21 and the second positioning component 22 on the fixing base 1 around the module power supply 3.

[0036] As an optional implementation method, such as Figure 3 As shown, both the notch 13 of the first base 11 and the notch 13 of the second base 12 are provided with positioning angles 14. These positioning angles 14 correspond to the four corners of the module power supply 3 and are used to limit and fix the four corners of the module power supply 3. Specifically, two positioning angles 14 are provided in the notch 13 of the first base 11, located on both sides of the bottom of the notch 13. Similarly, two positioning angles 14 are provided in the notch 13 of the first base 11, located on both sides of the bottom of the notch 13 of the second base 12. These two positioning angles 14 in the notch 13 of the first base 11 and the two positioning angles 14 in the notch 13 of the second base 12 correspond to and match the four corners of the module power supply 3. When the module power supply 3 is placed in the installation area, its four corners are positioned within the corresponding positioning angles 14, thus limiting and fixing the module power supply 3. This ensures that when the module power supply 3 is fixed to the circuit board 4, the mounting holes on the module power supply 3 correspond to the mounting holes on the circuit board 4. In addition, the positioning angle 14 can also protect the four corners of the module power supply 3.

[0037] As an optional implementation method, such as Figure 3As shown, both the first base 11 and the second base 12 are provided with mounting slots 15. The mounting slots 15 match the first positioning component 21 and the second positioning component 22, and are used to fix the first positioning component 21 and the second positioning component 22. Specifically, the mounting slots 15 on the first base 11 and the second base 12 are diagonally arranged on the fixed base 1, that is, the mounting slot 15 on the first base 11 is closer to the second side of the fixed base 1, and the mounting slot 15 on the second base 12 is closer to the first side of the fixed base 1. The mounting slot 15 on the first base 11 matches the first positioning component 21, and is used to fix the first positioning component 21. The mounting slot 15 on the second base 12 matches the second positioning component 22, and is used to fix the second positioning component 22.

[0038] As an optional implementation method, such as Figure 4 As shown, both the first positioning component 21 and the second positioning component 22 include a connecting part 201 and a positioning part 202, which cooperate to form a "7"-shaped structure. When the first positioning component 21 is fixed in the mounting groove 15 of the first base 11, the first positioning component 21 and the first base 11 cooperate to form a first latch 23, the opening direction of the first latch 23 being towards the first side of the fixed base 1. When the second positioning component 22 is fixed in the mounting groove 15 of the second base 12, the second positioning component 22 and the second base 12 cooperate to form a second latch 24, the opening direction of the second latch 24 being towards the second side of the fixed base 1. Specifically, the positioning part 202 is disposed on the first end of the connecting part 201, forming a first positioning component 21 and a second positioning component 22 with a "7"-shaped structure. The second end of the connecting part 201 (i.e., the bottom of the "7"-shaped structure) matches the mounting groove 15. The first positioning component 21 is fixed in the mounting groove 15 of the first base 11 through the connecting part 201, and the second positioning component 22 is fixed in the mounting groove 15 of the second base 12 through the connecting part 201. The connection method between the connecting part 201 and the mounting groove 15 can be a screw connection, a bolt connection, etc. When the first positioning component 21 is fixed in the mounting groove 15 of the first base 11, the "7"-shaped first positioning component 21 and the first base 11 cooperate to form a first latch 23, the opening direction of the first latch 23 facing the first side of the fixed base 1. When the second positioning component 22 is fixed in the mounting groove 15 of the second base 12, the "7"-shaped second positioning component 22 and the second base 12 cooperate to form a second latch 24, the opening direction of the second latch 24 facing the second side of the fixed base 1. The opening direction of the first latch 23 is opposite to that of the opening direction of the second latch 24, so that after the heat sink 5 is rotated and slid into the first latch 23 and the second latch 24, the first latch 23 and the second latch 24 match each other to limit and fix the two sides of the heat sink 5.

[0039] As an optional implementation method, such as Figure 4 and Figure 5 As shown, both the first positioning component 21 and the second positioning component 22 include a positioning post 203, which is fixed to the positioning part 202. A spring bead 204 is provided at the first end of the positioning post 203, allowing it to extend and retract on the positioning post 203. Specifically, the positioning part 202 has a through-hole structure. The positioning post 203 of the first positioning component 21 is fixed within this through-hole structure, with its first end extending out of the through-hole structure and located within the first bayonet 23. Similarly, the positioning post 203 of the second positioning component 22 is fixed within the through-hole structure of the positioning part 202, with its first end extending out of the through-hole structure and located within the second bayonet 24. When the heat sink 5 rotates and slides into the first bayonet 23 and the second bayonet 24, the spring ball 204 on the first end of the positioning post 203 is compressed back into the positioning post 203. When the heat sink 5 is installed in place, the spring ball 204 aligns with the positioning groove 531 on the heat sink 5, and the spring ball 204 pops out and is placed in the positioning groove 531, thereby limiting and fixing the heat sink 5. The length of the through hole structure extending from the first end of the positioning post 203 can be adjusted according to the height difference between the lower surface of the positioning part 202 and the upper surface of the module power supply 3, as well as the thickness of the positioning edge and the positioning piece 53 on the side of the heat sink 5, so that the heat sink 5 can rotate and slide into the first bayonet 23 and the second bayonet 24, and the heat sink 5 can be tightly locked between the module power supply 3 and the positioning part 202.

[0040] As an optional implementation method, such as Figure 5 As shown, the connecting part 201 and the positioning part 202 are integrated into one structure. Specifically, the integrated structure of the connecting part 201 and the positioning part 202 facilitates manufacturing and assembly, and provides strong structural stability.

[0041] As an optional implementation method, such as Figure 2 and Figure 6As shown, the heat sink 5 includes a cooling fan 51, a heat dissipation fin assembly 52, and a positioning plate 53. The cooling fan 51 is fixed to the heat dissipation fin assembly 52. ​​A first positioning edge 521 is fixed to the first side of the heat dissipation fin assembly 52, and a second positioning edge 522 is fixed to the second side of the heat dissipation fin assembly 52. ​​Both the first positioning edge 521 and the second positioning edge 522 are used to fix the positioning plate 53, which is used to cooperate with the positioning mechanism 2 to fix the heat sink 5. Specifically, when the heat sink 5 is fixed to the module power supply 3, the heat dissipation fin assembly 52 is in close contact with the module power supply 3, and the heat dissipation fin assembly 52 can dissipate the heat generated by the module power supply 3 during operation. The cooling fan 51 fixed to the heat dissipation fin assembly 52 can further improve the heat dissipation efficiency. The number of cooling fans 51 can be adaptively set according to actual needs, and can be selected as two. A first positioning edge 521 is fixed to the first side of the heat dissipation fin assembly 52, and the first positioning edge 521 is fixed to the first end of the heat dissipation fin assembly 52. ​​A second positioning edge 522 is fixed to the second side of the heat dissipation fin assembly 52, and the second positioning edge 522 is fixed to the second end of the heat dissipation fin assembly 52. ​​This allows the heat sink 5 to be placed obliquely (i.e., the axis of the length direction of the heat sink 5 intersects the axis of the length direction of the module power supply 3, and the heat sink 5 is located between the first bayonet 23 and the second bayonet 24) on the module power supply 3. This facilitates the use of the first positioning edge 521 with the first positioning component 21 and the second positioning edge 522 with the second positioning component 22. Positioning pieces 53 are fixed to both the first positioning edge 521 and the second positioning edge 522. The positioning pieces 53 can cooperate with the positioning post 203 to limit and fix the heat sink 5.

[0042] As an optional implementation method, such as Figure 2 As shown, the positioning groove 531 on the positioning piece 53 cooperates with and is correspondingly set with the spring ball 204 to limit and fix the heat sink 5. Specifically, the positioning piece 53 fixed on the first positioning edge 521 and the positioning piece 53 fixed on the second positioning edge 522 are both provided with positioning grooves 531 in the middle. The positioning grooves 531 are correspondingly set with the positioning post 203. When the first positioning edge 521 slides into the first latch 23 and the second positioning edge 522 slides into the second latch 24, the positioning groove 531 is moved to the bottom of the positioning post 203. The positioning groove 531 cooperates with the spring ball 204 to limit and fix the heat sink 5.

[0043] The process of installing the radiator 5 according to this utility model is as follows:

[0044] Place the heat sink 5 at an angle on the module power supply 3, with the heat sink 5 positioned between the first bayonet 23 and the second bayonet 24. Rotate the heat sink 5 clockwise, causing the first positioning edge 521 of the heat sink 5 to slide into the first bayonet 23 and the second positioning edge 522 to slide into the second bayonet 24. The positioning piece 53 on the first positioning edge 521 abuts against the positioning post 203 in the first bayonet 23, and the positioning piece 53 on the second positioning edge 522 abuts against the positioning post 203 in the second bayonet 24. The positioning piece 53 compresses the spring ball 204 on the corresponding positioning post 203. Continue to rotate the heat sink 5 clockwise, causing the first positioning edge 521 to abut against the first positioning component 21 and the second positioning edge 522 to abut against the second positioning component 22. At this time, the spring ball 204 on the positioning post 203 in the first bayonet 23 corresponds to the positioning groove 531 of the positioning piece 53 fixed on the first positioning edge 521, and the spring ball 204 on the positioning post 203 in the second bayonet 24 corresponds to the positioning groove 531 of the positioning piece 53 fixed on the second positioning edge 522. The pressure applied to the spring ball 204 is released, and the spring ball 204 springs back into the positioning groove 531. Through the mutual cooperation between the spring ball 204 and the positioning groove 531, the limiting and fixing of both sides of the radiator 5 is achieved.

[0045] The process of disassembling the radiator 5 according to this utility model is as follows:

[0046] Rotate the heat sink 5 counterclockwise to slide the first positioning edge 521 out of the first bayonet 23 and the second positioning edge 522 out of the second bayonet 24. The positioning piece 53 on the first positioning edge 521 and the positioning piece 53 on the second positioning edge 522 respectively compress the spring ball 204 on the corresponding positioning post 203, so that the spring ball 204 moves out of the positioning groove 531 until the heat sink 5 is slid out of the first bayonet 23 and the second bayonet 24. The spring ball 204 rebounds. At this time, the heat sink 5 is placed at an angle on the module power supply 3 and can be directly removed.

[0047] In the process of installing and disassembling the radiator 5, this utility model only requires rotating the radiator 5 to achieve quick installation and disassembly, without the need for any tools or screws, saving time, facilitating operation, and effectively improving production efficiency.

[0048] The embodiment is merely a special case and does not indicate that this utility model is implemented in such a way.

[0049] The above description is merely a preferred embodiment of the present utility model. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the present utility model. Furthermore, under the teachings of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present utility model.

Claims

1. A demountable positioning structure for high power density module power supply burn-in heat sinks, comprising: The utility model relates to a fixing base (1) and positioning mechanism (2), the fixing base (1) is fixed on the circuit board (4) for installing module power (3), and the fixing base (1) is engaged in the peripheral side of module power (3), the positioning mechanism (2) includes first positioning assembly (21) and second positioning assembly (22), first positioning assembly (21) and second positioning assembly (22) are fixed on the both sides of fixing base (1) respectively, and first positioning assembly (21) and second positioning assembly (22) are all used to limit and fix radiator (5) on module power (3) through elastic pressure mode.

2. The demountable positioning structure for high power density module power supply aging heat sinks of claim 1, wherein, The fixing base (1) includes a first base (11) and a second base (12), the first base (11) and the second base (12) are arranged in axial symmetry, the notch (13) of the first base (11) and the notch (13) of the second base (12) form an installation area, and the installation area is used for fixing the module power (3).

3. The demountable positioning structure for high power density module power supply aging heat sinks of claim 2, wherein, The notch (13) of the first base (11) and the notch (13) of the second base (12) are each provided with a positioning corner (14), the positioning corner (14) corresponds to the four corners of the module power (3), and the positioning corner (14) is used for limiting and fixing the four corners of the module power (3).

4. The demountable positioning structure for high power density module power supply aging heat sinks of claim 2, wherein, The first base (11) and the second base (12) are each provided with an installation groove (15), the installation groove (15) is matched with the first positioning assembly (21) and the second positioning assembly (22), and the installation groove (15) is used for fixing the first positioning assembly (21) and the second positioning assembly (22).

5. The demountable positioning structure for high power density module power supply aging heat sinks of claim 4, wherein, The first positioning assembly (21) and the second positioning assembly (22) each include a connecting part (201) and a positioning part (202), the connecting part (201) and the positioning part (202) are matched to form a "7" shaped structure; When the first positioning assembly (21) is fixed in the installation groove (15) of the first base (11), the first positioning assembly (21) and the first base (11) are matched to form a first clamping opening (23), and the opening direction of the first clamping opening (23) is towards the first side of the fixing base (1); When the second positioning assembly (22) is fixed in the installation groove (15) of the second base (12), the second positioning assembly (22) and the second base (12) are matched to form a second clamping opening (24), and the opening direction of the second clamping opening (24) is towards the second side of the fixing base (1).

6. The demountable positioning structure for high power density module power supply aging heat sinks of claim 5, wherein, The first positioning assembly (21) and the second positioning assembly (22) each include a positioning column (203), the positioning column (203) is fixed on the positioning part (202), a spring ball (204) is arranged on the first end of the positioning column (203), and the spring ball (204) can perform telescopic movement on the positioning column (203).

7. The demountable positioning structure for high power density module power supply aging heat sinks of claim 5, wherein, The connecting part (201) and the positioning part (202) are integrated.

8. The demountable positioning structure for high power density module power supply aging heat sinks of claim 6, wherein, The heat sink (5) comprises a heat dissipation fan (51), a heat dissipation fin group (52) and a positioning sheet (53), the heat dissipation fan (51) is fixed on the heat dissipation fin group (52); a first positioning edge (521) is fixed on a first side of the heat dissipation fin group (52), a second positioning edge (522) is fixed on a second side of the heat dissipation fin group (52), the first positioning edge (521) and the second positioning edge (522) are both used for fixing the positioning sheet (53); the positioning sheet (53) is used for cooperating with the positioning mechanism (2) to fix the heat sink (5).

9. The demountable positioning structure for high power density module power supply aging heat sinks of claim 8, wherein, The positioning groove (531) on the positioning sheet (53) and the spring ball (204) are correspondingly arranged and matched with each other, and the heat sink (5) is limited and fixed.

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