Small liquid cooling direct current charging pile

Abstract

The utility model discloses a small liquid cooling direct current charging pile which comprises a shell, a charging module is arranged in the shell and comprises a heating component, a cooling water channel covers the periphery of the outer side of the heating component, and the outer side surface of the cooling water channel is tightly attached to the heating surface of the heating component. The liquid cooling heat dissipation assembly is communicated with the cooling water channel; the charging module comprises a cover plate covering the heating component, the cooling water channel is arranged on the surface of the side, away from the heating component, of the cover plate, and the charging module further comprises a top cover used for sealing the cooling water channel. The liquid cooling heat dissipation assembly is communicated with the cooling water channel through the cover plate. Through the combined design of the cooling water channel and the liquid cooling heat dissipation assembly, cooling liquid is continuously provided for the cooling water channel, so that heat of the cooling water channel can be continuously and efficiently absorbed, and efficient cooling of heating components is achieved; and the charging pile works at full power, and meanwhile, efficient heat dissipation is conducted, and durability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, in particular to a small liquid-cooled DC charging pile. Background Art

[0002] In the market, all products of DC charging piles with a power level of 22KW are air-cooled charging piles. What is an air-cooled charging pile? It is a charging pile in which the heat-generating components inside the charging pile are cooled by a fan. However, the existing air-cooled DC charging piles in the market have poor heat dissipation effects. The charging piles cannot work at full power for a long time, with low charging efficiency, which affects the durability of the charging piles.

[0003] Therefore, in order to solve the above problems, it is necessary to develop a small liquid-cooled DC charging pile. Under the action of the cooling water channel and the liquid-cooled heat dissipation component, the charging pile can dissipate heat efficiently while working at full power, achieving long-term durability. Content of the Utility Model

[0004] To solve the above problems, the technical solutions adopted by the utility model are as follows:

[0005] A small liquid-cooled DC charging pile includes a housing. It is characterized in that a charging module is arranged inside the housing. The charging module includes heat-generating components. Cooling water channels are covered around the outside of the heat-generating components. The outer surface of the cooling water channels is closely attached to the heat-generating surface of the heat-generating components. The heat of the heat-generating components is conducted to the cooling water channels.

[0006] It also includes a liquid-cooled heat dissipation component communicated with the cooling water channels. The liquid-cooled heat dissipation component is used to absorb the heat of the cooling water channels through the coolant flowing in a closed loop.

[0007] Preferably, the charging module includes a cover plate covering the heat-generating components. The cooling water channels are arranged on the surface of the cover plate away from the heat-generating components. The charging module also includes a top cover for sealing the cooling water channels.

[0008] The liquid-cooled heat dissipation component is communicated with the cooling water channels through the cover plate.

[0009] Preferably, the liquid-cooled heat dissipation component includes a heat exchanger and a cooling fan. A coolant inlet interface and a coolant outlet interface communicated with the cooling water channels are arranged on the cover plate. The inlet and outlet of the heat exchanger are respectively connected to the coolant outlet interface and the coolant inlet interface. A pump body is arranged between the outlet of the heat exchanger and the coolant inlet interface. The cooling fan is arranged on one side of the heat exchange tubes of the heat exchanger.

[0010] Preferably, a coolant return pipe is provided between the liquid inlet of the heat exchanger and the coolant outlet interface, and a coolant outlet pipe is provided between the liquid outlet of the heat exchanger and the coolant inlet interface. The pump body is arranged on the coolant outlet pipe.

[0011] Preferably, the heat exchanger is arranged inside the housing. The housing is provided with an air outlet on the air outlet side of the cooling fan, and an air inlet is provided on the other side of the housing opposite to the air outlet.

[0012] Preferably, a seal is provided at the connection between the cover plate and the top cover.

[0013] Preferably, the cover plate is a die-cast part, and the cooling water channel is integrally formed with the cover plate.

[0014] Preferably, the cooling fan is a variable-frequency fan.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the combined design of the cooling water channel and the liquid cooling heat dissipation component, the present utility model continuously supplies coolant to the cooling water channel, so as to continuously and efficiently absorb the heat of the cooling water channel, achieving efficient cooling of the heat-generating components; enabling the charging pile to work at full power while achieving efficient heat dissipation, and being durable for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is an exploded structural schematic diagram of the present utility model;

[0019] Figure 3 is Figure 2 a partial enlarged schematic diagram at A in

[0020] Among them: housing 1, charging module 2, liquid cooling heat dissipation component 3, coolant return pipe 4, coolant outlet pipe 5, air outlet 11, air inlet 12, cover plate 21, top cover 22, heat exchanger 31, cooling fan 32, pump body 33, coolant inlet interface 21a, coolant outlet interface 21b, cooling water channel 100. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The preferred embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right", "up", "down", "front", "rear" and similar expressions used in this article are only for the purpose of illustration.

[0023] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by those skilled in the technical field to which this utility model belongs. The terms used in the description of this utility model in this article are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used in this article includes any and all combinations of one or more of the related listed items.

[0024] Next, in combination with the accompanying drawings and specific embodiments, the present utility model will be further described:

[0025] As Figure 1 、 2 、shown in Figure 3, a small liquid-cooled DC charging pile includes a housing 1, a charging module 2 is arranged inside the housing 1, the charging module 2 includes heating components (not shown in the figure), a cooling water channel 100 covers the outer periphery of the heating components, the outer surface of the cooling water channel 100 is in close contact with the heating surface of the heating components, and the heat of the heating components is conducted to the cooling water channel 100;

[0026] It further includes a liquid-cooled heat dissipation component 3 communicated with the cooling water channel 100, and the liquid-cooled heat dissipation component 3 is used to absorb the heat of the cooling water channel 100 through the coolant flowing in the internal circulation.

[0027] In this embodiment, the liquid-cooled heat dissipation method is adopted instead of the traditional air-cooled heat dissipation method. Since the heat dissipated by the heating components is directly conducted to the cooling water channel 100, the coolant is directly in contact with the cooling water channel 100, and the liquid-cooled heat dissipation component 3 continuously provides coolant to the cooling water channel 100, so as to continuously and efficiently absorb the heat of the cooling water channel 100 and achieve efficient cooling of the heating components.

[0028] Furthermore, as Figure 1 、 2As shown in FIGS. 2 and 3, in order to block the direct contact between the coolant and the heat-generating components while achieving high heat dissipation, improving safety, and enhancing the protection of the heat-generating components; the charging module 2 includes a cover plate 21 covering the heat-generating components, the cooling water channel 100 is arranged on the surface of the cover plate 21 away from the heat-generating components, and the charging module 2 further includes a top cover 22 for sealing the cooling water channel 100; the liquid cooling and heat dissipation assembly 3 is communicated with the cooling water channel 100 through the cover plate 21.

[0029] Further, as Figure 1 、 2 、3 shown, the liquid cooling and heat dissipation assembly 3 includes a heat exchanger 31 and a cooling fan 32. A coolant inlet interface 21a and a coolant outlet interface 21b communicated with the cooling water channel 100 are arranged on the cover plate 21. The inlet and outlet of the heat exchanger 31 are respectively connected with the coolant outlet interface 21b and the coolant inlet interface 21a. A pump body 33 is arranged between the outlet of the heat exchanger 31 and the coolant inlet interface 21a; the cooling fan 32 is arranged on one side of the heat exchange tubes of the heat exchanger 31.

[0030] In this embodiment, the working principle of liquid cooling and heat dissipation: when the charging module 2 works, the heat generated by the heat-generating components in the charging module 2 will be conducted to the cooling water channel 100. Under the action of the pump body 33, the coolant in the cooling water channel 100 absorbs heat and forms cooling hot liquid and enters the heat exchanger 31. Then, under the action of the cooling fan 32, it exchanges heat through the heat exchanger 31 to form coolant and enters the cooling water channel 100 again, so as to realize the efficient cooling of the heat-generating components.

[0031] In this embodiment, two or more cooling fans 32 are provided, which greatly improves the heat dissipation effect of the heat exchanger 31.

[0032] Further, as Figure 1 、 2 、3 shown, in order to reasonably set the installation position of the heat exchanger 31 in the housing 1 so that the heat exchanger 31 is connected to the cooling water channel 100 over a long distance; a coolant return pipe 4 is arranged between the inlet of the heat exchanger 31 and the coolant outlet interface 21b, and a coolant outlet pipe 5 is arranged between the outlet of the heat exchanger 31 and the coolant inlet interface 21a. The pump body 33 is arranged on the coolant outlet pipe 5. Through the above structural arrangement, the installation in a small-space compact structure is realized.

[0033] Further, as Figure 2As shown, in order to further improve the cooling effect and enhance the air flow inside the housing 1, while discharging the hot air inside and allowing the cold air outside to enter the housing 1; the heat exchanger 31 is arranged inside the housing 1, an air outlet 11 is provided on the air outlet side of the housing 1 where the cooling fan 32 is located, and an air inlet 12 is provided on the other side of the housing 1 opposite to the air outlet 11.

[0034] Further, as Figure 1 , 2 , as shown in Figures 2 and 3, in order to ensure the tightness of the cooling water channel 100, prevent the coolant from overflowing, and enhance the safety and reliability; a seal (not shown in the figure) is provided at the connection between the cover plate 21 and the top cover 22.

[0035] Further, as Figure 2 shown, in order to enhance the strength of the cooling water channel 100 and ensure the precise fit between the cooling water channel 100 and the heat-generating components; the cover plate 21 is a die-cast part, and the cooling water channel 100 is integrally formed with the cover plate 21.

[0036] Further, as Figure 2 shown, in order to improve the cooling effect and efficiency; the cooling fan 32 is a variable-frequency fan, enabling the cooling fan 32 to perform real-time speed control according to the cooling effect.

[0037] For those skilled in the art, various corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all such changes and deformations should fall within the protection scope of the claims of this utility model patent.

Claims

1. A small liquid-cooled DC charging pile, comprising a housing, characterized in that: A charging module is arranged in the housing, and the charging module includes a heating element. The outer side of the heating element is covered with a cooling water channel. The outer surface of the cooling water channel is in close contact with the heating surface of the heating element, and the heat of the heating element is thermally conducted to the cooling water channel. It also includes a liquid cooling heat dissipation component communicated with the cooling water channel, and the liquid cooling heat dissipation component is used to absorb the heat of the cooling water channel through the cooling liquid circulating inside.

2. A small liquid-cooled DC charging pile according to claim 1, characterized in that: The charging module includes a cover plate covering the heat generating components, the cooling water channel is arranged on a surface of the cover plate away from the heat generating components, and the charging module also includes a top cover for sealing the cooling water channel; The liquid cooling heat dissipation component is connected to the cooling water channel through the cover plate.

3. A small liquid-cooled DC charging pile according to claim 2, characterized in that: The liquid-cooled heat dissipation component includes a heat exchanger and a heat dissipation fan. The cover plate is provided with a coolant inlet interface and a coolant outlet interface connected to the cooling water channel. The inlet and outlet of the heat exchanger are respectively connected to the coolant outlet interface and the coolant inlet interface. A pump body is provided between the outlet of the heat exchanger and the coolant inlet interface; the heat dissipation fan is arranged on one side of the heat exchange tube of the heat exchanger.

4. A small liquid-cooled DC charging pile according to claim 3, characterized in that: A coolant return pipe is arranged between the liquid inlet of the heat exchanger and the coolant outlet interface, a coolant outlet pipe is arranged between the liquid outlet of the heat exchanger and the coolant inlet interface, and the pump body is arranged on the coolant outlet pipe.

5. A small liquid-cooled DC charging pile according to claim 3, characterized in that: The heat exchanger is arranged in a shell, an air outlet is provided on the air outlet side of the shell where the heat dissipation fan is located, and an air inlet is provided on the other side of the shell opposite to the air outlet.

6. A small liquid-cooled DC charging pile according to claim 2, characterized in that: A sealing member is provided at the connection between the cover plate and the top cover.

7. A small liquid-cooled DC charging pile according to claim 2, characterized in that: The cover plate is a die-casting part, and the cooling water channel is integrally formed with the cover plate.

8. A small liquid-cooled DC charging pile according to claim 5, characterized in that: The heat dissipation fan is a variable frequency fan.

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