Multi-module heat dissipation structure

Abstract

The utility model relates to the field of charging piles, in particular to a multi-module heat dissipation structure which comprises a plurality of charging modules, the charging modules are all located in a mounting cavity in a charging pile, each charging module is provided with a cooling fan and a cooling fin, and a cooling gap is formed between every two adjacent charging modules; the radiating fins are provided with bent parts, and the bent parts of the radiating fins are located in the radiating gaps. The charging module has the advantage that the situation of local high temperature is not prone to occurring between the two adjacent charging modules.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of charging piles, in particular to a multi-module fan heat structure. BACKGROUND

[0002] A charging pile is a facility for charging electric vehicles. With the rapid popularization of electric vehicles in recent years, the domestic market has gradually increased its attention to charging piles, especially the charging speed of charging piles.

[0003] In the prior art, multiple high-power charging modules are usually installed in the limited installation cavity of the charging pile to ensure the charging speed of the charging pile when needed. In addition, cooling fans are usually arranged inside the charging modules to promptly discharge the heat generated during the charging process, thereby reducing the occurrence of overheating of the charging modules.

[0004] For the related technology in the above, the concentrated installation of the charging modules will cause heat accumulation between two adjacent charging modules, and thus local high temperature between the two adjacent charging modules is prone to occur. SUMMARY

[0005] In order to prevent local high temperature between two adjacent charging modules, the present application provides a multi-module fan heat structure.

[0006] The multi-module fan heat structure provided by the present application adopts the following technical solution:

[0007] A multi-module fan heat structure includes a plurality of charging modules, each of which is located in an installation cavity inside a charging pile. Each of the plurality of charging modules is provided with a cooling fan and a heat sink, and a heat dissipation gap is provided between two adjacent charging modules. The heat sink is provided with a bending portion, and the bending portion of the heat sink is located in the heat dissipation gap.

[0008] By adopting the above technical solution, the heat generated in the heat dissipation gap of the charging module is transferred to the heat sink, and the heat is transferred to the air through the heat sink with a larger contact area. The heat in the air is transferred to the outside of the charging pile by the airflow generated by the cooling fan of the charging module, thereby meeting the heat dissipation requirements of multiple high-power charging modules in the limited installation cavity of the charging pile, and preventing local high temperature between two adjacent charging modules.

[0009] Optionally, the thickness dimension of the bending portion of the heat sink is smaller than the width dimension of the heat dissipation gap.

[0010] By adopting the above technical scheme, the heat dissipation fins can conveniently transfer heat to the air, and the heat of the working charging module can be reduced from being transferred to the adjacent non-working charging module when only part of the charging modules are working, thereby reducing the damage of the non-working charging module caused by local high temperature.

[0011] Optionally, the width of the heat dissipation gap is greater than or equal to 1 mm.

[0012] By adopting the above technical scheme, the two adjacent charging modules can be fully cooled through the heat dissipation gap, and the situation that heat is difficult to dissipate due to the close contact between the two adjacent charging modules can be reduced.

[0013] Optionally, the heat dissipation fins are detachably installed on the charging module.

[0014] By adopting the above technical scheme, the heat dissipation fins can be conveniently disassembled and assembled.

[0015] Optionally, the heat dissipation fins are installed on the charging module by bolts.

[0016] By adopting the above technical scheme, the heat dissipation fins can be further conveniently disassembled and assembled.

[0017] Optionally, the multi-module heat dissipation structure further comprises a charging pile shell, and the heat dissipation fins are tightly fitted to the charging pile shell.

[0018] By adopting the above technical scheme, on the basis of cooling by the cooling fan, the heat is further transferred to the charging pile shell, so that the heat is dissipated to the atmosphere through the charging pile shell, thereby ensuring the cooling effect of the charging module and further meeting the heat dissipation demand of the multiple high-power charging modules in the limited installation cavity of the charging pile.

[0019] Optionally, a heat-conducting silicone grease layer is arranged between the heat dissipation fins and the charging module.

[0020] By adopting the above technical scheme, the heat-conducting silicone grease layer can ensure the contact between the heat dissipation fins and the charging module, and ensure that the heat of the charging module can be uniformly transferred to the heat dissipation fins, thereby reducing the situation that part of the heat dissipation fins does not effectively contact the charging module.

[0021] Optionally, the thickness of the heat-conducting silicone grease layer is 0.3-3 mm.

[0022] By adopting the above technical scheme, the heat-conducting silicone grease layer can ensure the close contact between the heat dissipation fins and the charging module under the premise of reducing the excessive thickness of the heat-conducting silicone grease layer which affects heat dissipation.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. The heat generated by the charging modules in the heat dissipation gap is transferred to the heat dissipation fins, and the heat is transferred to the air through the heat dissipation fins with a larger contact area. The heat in the air is transferred to the outside of the charging pile through the airflow generated by the cooling fan of the charging module, thereby meeting the heat dissipation needs of multiple high-power charging modules in the limited installation cavity of the charging pile, and preventing local high temperature from occurring between two adjacent charging modules. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is an assembly schematic diagram of the charging module of the embodiment 1 of the present application.

[0026] Figure 2 is an overall schematic diagram of the installation cavity of the embodiment 1 of the present application.

[0027] Figure 3 is an enlarged schematic diagram of part A of Figure 2

[0028] Figure 4 is an overall schematic diagram of the charging module of the embodiment 1 of the present application.

[0029] Figure 5 is a schematic diagram of the cooperation relationship between the charging module of the embodiment 1 of the present application and the heat dissipation fins.

[0030] Figure 6 is a cross-sectional schematic diagram of the heat-conducting silicone grease layer of the embodiment 2 of the present application.

[0031] BRIEF DESCRIPTION OF DRAWINGS: 1, charging pile shell; 101, installation cavity; 2, charging module; 201, heat dissipation gap; 21, heat dissipation grid; 3, heat dissipation fin; 31, bending part; 4, heat-conducting silicone grease layer. DETAILED DESCRIPTION

[0032] The following will be described in detail in combination with the accompanying drawings. Figures 1-6 The present application will be further described in detail.

[0033] Embodiment 1:

[0034] The embodiment 1 of the present application discloses a multi-module heat dissipation structure. Referring to Figure 1 and Figure 2 , the multi-module heat dissipation structure comprises a charging pile shell 1 and a plurality of charging modules 2. The charging pile shell 1 is internally provided with an installation cavity 101, the plurality of charging modules 2 are all installed in the installation cavity 101, and the plurality of charging modules 2 are distributed along the height of the charging pile, and the plurality of charging modules 2 are all provided with a cooling fan (not shown in the figure) and a heat dissipation grid 21 corresponding to the cooling fan.

[0035] Referring to Figure 3 ​A heat dissipation gap 201 is provided between two adjacent charging modules 2. The width of the heat dissipation gap 201 is more than 1 mm, so that the heat generated by the charging module 2 during operation can be dissipated into the heat dissipation gap 201. Figure 4 and Figure 5 The charging module 2 is detachably equipped with two heat sinks 3, which are located on both sides of the heat dissipation grille 21 of the charging module 2. The heat sinks 3 are made of metal or non-metal materials with a thermal conductivity of 30 W / (m·K) or higher, such as aluminum, copper, metal composite materials, graphene and / or carbon nanotubes, and other thermally conductive materials known to those skilled in the art. Specifically, in Embodiment 1 of this application, the material of the heat sink 3 is preferably copper.

[0036] The heat sink 3 and the charging module 2 can be connected by movable mechanical connection methods known to those skilled in the art, such as sliding engagement between protrusions and grooves, snap engagement between elastic protrusions and snap-fit ​​grooves, locking engagement between rotating paddles and heat sink 3, threaded engagement, or bolt engagement. Specifically, in embodiment 1 of this application, the heat sink 3 and the charging module 2 are connected to the outer peripheral surface of the charging module 2 by four bolts arranged in a rectangular pattern.

[0037] Reference Figure 3 The heat sink 3 has a bent portion 31. Specifically, in Embodiment 1 of this application, the heat sink 3 has a near-L-shaped cross-section due to the bent portion 31. The bent portion 31 of the heat sink 3 is located within the heat dissipation gap 201 and is tightly fitted to the outer peripheral surface of the charging module 2. The thickness of the bent portion 31 is smaller than the width of the heat dissipation gap 201, so that the heat dissipated from the charging module 2 to the heat dissipation gap 201 can be transferred to the outside of the heat dissipation gap 201 through the heat sink 3, thereby reducing the overheating of the charging module 2 near the heat dissipation gap 201. In addition, the side of the heat sink 3 away from the bent portion 31 is tightly fitted to the charging pile housing 1, so as to transfer heat to the charging pile housing 1, thereby allowing the heat to be dissipated to the atmosphere through the charging pile housing 1.

[0038] The implementation principle of the multi-module heat dissipation structure in Embodiment 1 of this application is as follows: the heat generated by the charging module 2 within the heat dissipation gap 201 is transferred to the bent portion 31 of the heat sink 3. The heat sink 3 then transfers the heat to the air and the charging pile housing 1 with a larger contact area. The heat in the air is transferred to the outside of the charging pile by the airflow generated by the cooling fan of the charging module 2, and the charging pile housing 1 further transfers the heat to the outside of the charging pile through a larger heat dissipation area. Thus, the heat dissipation requirements of multiple high-power charging modules 2 are met within the limited installation cavity 101 of the charging pile, and localized high temperatures are less likely to occur between two adjacent charging modules 2.

[0039] Example 2:

[0040] Embodiment 2 of the present application discloses a multi-module heat-fan structure, which is mainly different from Embodiment 1 in the following aspects: the mounting mode of the heat-dissipating fin 3 is different; and the specific arrangement of the charging module 2 is different.

[0041] With reference to Figure 6 A heat-conducting silicone grease layer 4 is arranged between the heat-dissipating fin 3 and the charging module 2, the thickness of the heat-conducting silicone grease layer 4 is 0.3-3 mm, and the two sides of the heat-conducting silicone grease layer 4 are respectively bonded to the outer circumferential surface of the charging module 2 and the surface of the heat-dissipating fin 3, so as to ensure that the heat of the charging module 2 can be uniformly transmitted to the heat-dissipating fin 3, and the situation that part of the heat-dissipating fin 3 is not effectively contacted with the charging module 2 is reduced.

[0042] Embodiment 2 of the present application discloses a multi-module heat-fan structure, which is mainly different from Embodiment 1 in the following aspects: the mounting mode of the heat-dissipating fin 3 is different; and the specific arrangement of the charging module 2 is different.

[0043] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A multi-module heat dissipation structure, characterized in that: It includes several charging modules (2), each of which is located in an installation cavity (101) inside the charging pile. Each of the charging modules (2) is provided with a cooling fan and a heat sink (3). A heat dissipation gap (201) is provided between two adjacent charging modules (2). The heat sink (3) is provided with a bent part (31), and the bent part (31) of the heat sink (3) is located in the heat dissipation gap (201).

2. The multi-module heat dissipation structure according to claim 1, characterized in that: The thickness of the bent portion (31) of the heat sink (3) is smaller than the width of the heat dissipation gap (201).

3. The multi-module heat dissipation structure according to claim 1, characterized in that: The width of the heat dissipation gap (201) is 1 mm or more.

4. The multi-module heat dissipation structure according to claim 1, characterized in that: The heat sink (3) can be detachably installed on the charging module (2).

5. A multi-module heat dissipation structure according to claim 4, characterized in that: The heat sink (3) is mounted to the charging module (2) by bolts.

6. The multi-module heat dissipation structure according to claim 1, characterized in that: The multi-module heat dissipation structure also includes a charging pile housing (1), and the heat sink (3) is fitted tightly to the charging pile housing (1).

7. The multi-module heat dissipation structure according to claim 1, characterized in that: A thermal grease layer (4) is provided between the heat sink (3) and the charging module (2).

8. A multi-module heat dissipation structure according to claim 7, characterized in that: The thickness of the thermal grease layer (4) is 0.3-3 mm.

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