A water-cooled resistor

Abstract

The application relates to the technical field of water-cooled resistors, in particular to a water-cooled resistor which comprises a water channel piece and a resistor core connected to the water channel piece, a cavity is arranged in the water channel piece, water inlets and water outlets are arranged at two ends of the water channel piece respectively, two water grooves are arranged at the two sides of the water channel piece respectively, the two water grooves are communicated with the water inlets and the water outlets respectively, and the resistor core is connected to the outside of the water channel piece. The application has the effect of improving the power density of the water-cooled resistor.

Description

Technical Field

[0001] This application relates to the technical field of water-cooled resistors, and in particular to a water-cooled resistor. Background Technology

[0002] With the rapid development of new energy vehicles, nuclear power, smart grids and other fields, the demand for high-temperature and high-stability resistors has surged, and there is huge potential for domestic substitution. At present, water-cooled resistors are commonly used. Water-cooled resistors usually include a shell, a water-cooling channel and a resistor core. During use, the resistor core will heat up, and water needs to be introduced into the water-cooling channel to cool the resistor core in order to ensure that the resistor core can operate normally.

[0003] Currently, due to the rapid flow of water through the casing, the cooling effect on the resistor core is limited, resulting in low heat dissipation efficiency. This limits the resistance value of water-cooled resistors, thus restricting their power density. Utility Model Content

[0004] In order to improve the power density of water-cooled resistors, this application provides a water-cooled resistor.

[0005] This application provides a water-cooled resistor, which adopts the following technical solution: A water-cooled resistor includes a water channel component and a resistor core connected to the water channel component. The water channel component has a cavity inside. A water inlet and a water outlet are respectively provided at both ends of the water channel component. Two water tanks are respectively provided on both sides of the interior of the water channel component, and the two water tanks are respectively connected to the water inlet and the water outlet. The resistor core is connected to the outside of the water channel component. A PINFIN structure is provided on the inner wall of the water channel component, and the PINFIN structure is located inside the cavity.

[0006] By adopting the above technical solution, the water inlet and outlet holes fulfill the purpose of allowing water-based coolant to flow in and out of the cavity. When the user uses this application, the water-based coolant filling the cavity can cool the resistor core, achieving the basic cooling purpose of this application. The water tank can guide the water-based coolant, allowing it to fully fill the cavity along the water tank, improving the cooling stability of this application. At the same time, the PINFIN structure can slow down the flow rate of the water-based coolant inside the cavity. While maintaining a constant water inlet speed, the cavity can be stably filled with water-based coolant, thereby improving and maintaining the cooling effect. This allows the application to withstand a higher power density and increases the power density of the water-cooled resistor.

[0007] Optionally, the resistor core is a resistor core manufactured using a thick-film process, and the resistor core is a resistor core packaged using a semiconductor packaging process.

[0008] By adopting the above technical solution, a good welding effect is achieved, the void ratio is reduced, and the power density of the water-cooled resistor is increased.

[0009] Optionally, the resistor core includes three resistor modules. Each resistor module has a terminal at one end, which is designated as terminal A. The other end of the resistor module has two terminals, which are designated as terminals B and C, respectively. The three resistor modules are named the first resistor module, the second resistor module, and the third resistor module. The terminals of these three resistor modules are A1 terminal, B1 terminal, C1 terminal, A2 terminal, B2 terminal, C2 terminal, A3 terminal, B3 terminal, and C3 terminal, respectively.

[0010] By adopting the above technical solution, the three resistor modules can be integrated as a single resistor or used separately as six small-power resistors, suitable for tiered use, meeting users' actual usage scenarios and choices, and maximizing space utilization.

[0011] Optionally, the PINFIN structure is a PINFIN structure made of copper.

[0012] By adopting the above technical solution, the durability of this application has been improved.

[0013] Optionally, the water channel component is made of 6061 aluminum alloy, and the surface of the water channel component is anodized.

[0014] By adopting the above technical solution, the durability of this application has been improved.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This application increases flow resistance and improves heat dissipation by setting up a water channel component and a PINFIN structure inside the water channel component, thereby increasing heat capacity and improving product reliability. This application also sets up three resistor modules, which can be integrated as a single resistor or used separately as six small-power resistors, suitable for customers with different needs, while maximizing space utilization. Attached Figure Description Figure 1 This is a schematic diagram of a water-cooled resistor.

[0016] Figure 2 This is a structural diagram of a waterway component.

[0017] Figure 3 It is a cross-sectional view intended to emphasize the structure of the waterway components.

[0018] Figure 4It is a cross-sectional view intended to emphasize the structure of the waterway components.

[0019] Figure 5 This is a schematic diagram of the PINFIN structure.

[0020] Figure 6 This is a schematic diagram of the resistor core.

[0021] Explanation of reference numerals in the attached drawings: 1. Water channel component; 11. Cavity; 12. Water inlet; 13. Water outlet; 14. Water tank; 15. PINFIN structure; 2. Resistor core; 21. First resistor module; 211. A1 terminal; 212. B1 terminal; 213. C1 terminal; 22. Second resistor module; 221. A2 terminal; 222. B2 terminal; 223. C2 terminal; 23. Third resistor module; 231. A3 terminal; 232. B3 terminal; 233. C3 terminal. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0023] This application discloses a water-cooled resistor. (Refer to...) Figure 1-3A water-cooled resistor includes a water channel component 1 and a resistor core 2 connected to the water channel component 1. The water channel component 1 is made of 6061 aluminum alloy and is sealed with a sealing ring. The surface of the water channel component 1 is anodized to achieve the IP67 sealing requirement, thereby improving the durability of this application. The resistor core 2 is connected to the outer wall of the water channel component 1. When the coolant flows through the water channel component 1, it conducts heat to the resistor core 2 through the outer wall of the water channel component 1. The resistor core 2 includes three resistor modules arranged side by side. The water channel component 1 has a cavity 11 inside. The two ends of the water channel component 1 are respectively provided with a water inlet 12 and a water outlet 13. The water inlet 12 and the water outlet 13 are used to allow the water-based coolant to flow in and out of the cavity 11. Two water tanks 14 are respectively provided on both sides of the inside of the water channel component 1. The length direction of the water tanks 14 is parallel to the arrangement direction of the three resistor modules. The two water tanks 14 are connected to the water inlet 12 and the water outlet 13 respectively. Both water tanks 14 are located in the grooves of the cavity 11. When the water-based coolant enters from the water tank 14, it can fill and spread into the cavity 11, allowing the water-based coolant to fully fill the cavity 11 along the water tank 14, improving the cooling stability of this application. Then, it is discharged from the water outlet 13 through the water tank 14 connected to the water outlet 13. The water-based coolant filling the cavity 11 can cool the resistor core 2, achieving the basic cooling purpose of this application. The inner walls of the water inlet 12 and the water outlet 13 are both provided with internal threads, so that the inner walls of the water inlet 12 and the water outlet 13 can be directly connected to the external threaded water nozzle. Then, the external threaded water nozzle can be directly connected to the external mounting plate, replacing the traditional mounting bracket, which is more secure and saves space.

[0024] Furthermore, referring to Figures 2-4, the inner wall of the water channel component 1 is provided with a PINFIN structure 15. The PINFIN structure 15 is made of copper, which improves the durability of this application. The PINFIN structure 15 is located inside the cavity 11. The PINFIN structure 15 can slow down the flow rate of the water-based coolant inside the cavity 11. While maintaining a constant water inlet speed at the inlet hole 12, the cavity 11 can be stably filled with water-based coolant, thereby improving and maintaining the cooling effect. This allows the application to withstand a higher power density. The PINFIN structure 15 increases the flow resistance, improves the heat dissipation effect, increases the heat capacity, improves the reliability of the product, and increases the power density of the water-cooled resistor.

[0025] Resistor core 2 is made using a thick film process and is packaged using semiconductor packaging technology, which provides good welding effect, reduces void ratio, increases power density of water-cooled resistor, and minimizes the impact of condensate on electrical modules.

[0026] The water channel component 1 adopts the water tank 14 method, which enables the three resistor modules arranged side by side to cool down at the same time, maximizing the solution to the superposition effect caused by heat accumulation and ensuring that the temperature rise of the three resistor modules is at the same level to a large extent.

[0027] Reference Figure 5-6 The resistor module includes one terminal at one end, designated as terminal A, and two terminals at the other end, designated as terminals B and C respectively. The three resistor modules are named as follows: First Resistor Module 21, Second Resistor Module 22, and Third Resistor Module 23. The terminal connections for these three resistor modules are A1 terminal 211, B1 terminal 212, C1 terminal 213, A2 terminal 221, B2 terminal 222, C2 terminal 223, A3 terminal 231, B3 terminal 232, and C3 terminal 232, respectively. Terminal 233 allows users to integrate the three resistor modules into a single resistor when using them simultaneously. Alternatively, terminals A1 211 and B1 212, A1 211 and C1 213, A2 221 and B2 222, A2 221 and C2 223, A3 231 and B3 232, and A3 231 and C3 233 can be used separately as six low-power resistors. This allows for segmented use, meeting users' actual needs and preferences, and maximizing space utilization.

[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A water-cooled resistor, characterized in that: The device includes a water channel component (1) and a resistor core (2) connected to the water channel component (1). The water channel component (1) has a cavity (11) inside. The two ends of the water channel component (1) are respectively provided with a water inlet (12) and a water outlet (13). The two sides inside the water channel component (1) are respectively provided with two water tanks (14), which are respectively connected to the water inlet (12) and the water outlet (13). The resistor core (2) is connected to the outside of the water channel component (1). The inner wall of the water channel component (1) is provided with a PINFIN structure (15), which is located inside the cavity (11).

2. A water-cooled resistor according to claim 1, characterized in that: The resistor core (2) is a resistor core (2) made using a thick film process, and the resistor core (2) is a resistor core (2) packaged using a semiconductor packaging process.

3. A water-cooled resistor according to claim 1, characterized in that: The resistor core (2) includes three resistor modules. Each resistor module has a terminal at one end, which is designated as terminal A. The other end of the resistor module has two terminals, which are designated as terminals B and C, respectively. The three resistor modules are named as the first resistor module (21), the second resistor module (22), and the third resistor module (23), respectively. The terminals of these three resistor modules are A1 terminal (211), B1 terminal (212), C1 terminal (213), A2 terminal (221), B2 terminal (222), C2 terminal (223), A3 terminal (231), B3 terminal (232), and C3 terminal (233).

4. A water-cooled resistor according to claim 1, characterized in that: The PINFIN structure (15) is a PINFIN structure (15) made of copper.

5. A water-cooled resistor according to claim 1, characterized in that: The water channel component (1) is made of 6061 aluminum alloy and the surface of the water channel component (1) is anodized.

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