Liquid cooling brake resistor

Abstract

The utility model belongs to the technical field of brake resistors, and particularly relates to a liquid cooling brake resistor which comprises a resistor shell, a liquid cooling groove is formed in the resistor shell, refrigerating fluid is filled in the liquid cooling groove, and a heat conduction part is connected to the resistor shell and assists in heat conduction and heat dissipation of the resistor shell. The heat conduction part comprises a plurality of groups of heat dissipation fins connected to the outer side of the resistor shell and a micro pump arranged in the liquid cooling tank, the plurality of groups of heat dissipation fins are linearly arranged at equal intervals from top to bottom along the outer side of the resistor shell, heat generated by the resistor shell during working is conducted out through the arranged heat dissipation fins, and the micro pump works to achieve heat dissipation of the resistor shell. Refrigerating fluid in the liquid cooling groove is supplied to the heat conduction pipe, heat exchange is conducted on the heat dissipation fins through the heat conduction pipe, the heat dissipation efficiency is improved, the liquid cooling groove is formed in the resistor shell, the refrigerating fluid is filled in the resistor shell, and therefore the heat dissipation mode of the brake resistor is increased to be aluminum shell heat dissipation and liquid cooling matched double heat dissipation.

Description

Technical Field

[0001] The utility model relates to the technical field of brake resistors, in particular to a liquid-cooled brake resistor. Background Art

[0002] The use of brake resistors in new energy vehicles acts as a current discharger in the circuit to protect the DC relay from the potential safety hazards caused by high current shocks during instantaneous operation;

[0003] Existing brake resistors all use aluminum shell resistors filled with quartz sand as a thermal conductive material. When a large current is applied instantaneously, a high temperature is generated, causing the two terminals of the resistor to continue to heat up. The aluminum shell expands due to heat, causing the molded terminals at both ends of the resistor to loosen, and the quartz sand used for heat dissipation will overflow from both ends of the port, resulting in a decrease in the heat dissipation coefficient of the brake resistor itself and a decrease in its ability to carry large currents, posing a safety hazard. Therefore, a liquid-cooled brake resistor is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a liquid-cooled brake resistor, which uses the provided heat dissipation fins to dissipate the heat generated by the operation of the resistor housing, and the micro pump works to supply the refrigerant in the liquid cooling tank to the heat pipe, and the heat exchange is performed on the heat dissipation fins through the heat pipe to improve the heat dissipation efficiency. In addition, a liquid cooling tank is opened in the resistor housing and filled with refrigerant, so that the heat dissipation method of the brake resistor is increased to aluminum shell heat dissipation plus liquid cooling combined with dual heat dissipation.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A liquid-cooled brake resistor, comprising:

[0008] The resistor housing is connected to the base frame, and a liquid cooling tank is provided in the resistor housing, and the liquid cooling tank is filled with a refrigerant;

[0009] The heat-conducting component is connected to the resistor housing to assist in heat conduction and heat dissipation of the resistor housing.

[0010] As a preferred solution of the liquid-cooled brake resistor described in the present invention, two groups of connecting seats are symmetrically connected to the bottoms of the left and right sides of the resistor housing, and the connecting seats are adapted to the external connecting bolts.

[0011] As a preferred solution of a liquid-cooled brake resistor described in the utility model, the heat-conducting component includes multiple groups of heat dissipation fins connected to the outside of the resistor housing and a micro pump placed in the liquid cooling tank, and the multiple groups of heat dissipation fins are linearly and equidistantly arranged from top to bottom along the outside of the resistor housing.

[0012] As a preferred solution of the liquid-cooled brake resistor described in the present invention, the micro pump input port is connected to the liquid cooling tank, the micro pump output port is connected to a tee pipe, and both ends of the tee pipe are connected to heat pipes.

[0013] As a preferred solution of the liquid-cooled brake resistor described in the present invention, the heat pipe is wound around the heat dissipation fins, and the heat pipe is connected to the outside of the heat dissipation fins in a curved shape and at equal distances.

[0014] As a preferred solution of the liquid-cooled brake resistor described in the present invention, a plurality of groups of semiconductor cooling plates are embedded in the liquid cooling tank, and the plurality of groups of semiconductor cooling plates are connected to the liquid cooling tank in a rectangular shape and at equal intervals.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The heat generated by the operation of the resistor housing is dissipated through the provided heat dissipation fins, and the micro pump works to supply the refrigerant in the liquid cooling tank to the heat pipe, and the heat exchange is carried out on the heat dissipation fins through the heat pipe to improve the heat dissipation efficiency. In addition, a liquid cooling tank is opened in the resistor housing and filled with refrigerant. In this way, the heat dissipation method of the brake resistor is increased to aluminum shell heat dissipation plus liquid cooling with dual heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a side view of the structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0021] In the figure: 100 resistor housing, 110 liquid cooling tank, 120 connecting base, 200 heat conducting component, 210 heat dissipating fin, 220 micro pump, 221 three-way pipe, 230 heat conducting pipe, 240 semiconductor cooling sheet. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides a liquid-cooled brake resistor. Figure 1-3 , including a resistor housing 100 and a heat conducting component 200;

[0027] Please continue reading Figure 1-3 The resistor housing 100 is connected to the base frame, and a liquid cooling tank 110 is provided in the resistor housing 100. The liquid cooling tank 110 is filled with a refrigerant (not shown in the figure). The bottom of the left and right sides of the resistor housing 100 are symmetrically integrally connected with two sets of connecting seats 120, which are adapted to the external connecting bolts.

[0028] Please continue reading Figure 1-3 The heat-conducting component 200 is connected to the resistor housing 100 to assist in heat conduction and heat dissipation of the resistor housing 100;

[0029] The heat conducting component 200 includes a plurality of heat dissipating fins 210 connected to the outside of the resistor housing 100 and a micro pump 220 threadedly connected to the liquid cooling tank 110;

[0030] Multiple groups of heat dissipation fins 210 are arranged linearly and equidistantly along the outer side of the resistor housing 100 from top to bottom. The input port of the micro pump 220 is connected to the liquid cooling tank 110, and the output port of the micro pump 220 is connected to a tee pipe 221. The two ends of the tee pipe 221 are connected to heat conduction pipes 230. The heat conduction pipes 230 are wound around the heat dissipation fins 210 and are connected to the outer side of the heat dissipation fins 210 in a curved shape and equidistantly.

[0031] The heat generated by the resistor housing 100 is dissipated through the provided heat dissipation fins 210, and the micro pump 220 operates to supply the refrigerant in the liquid cooling tank 110 to the heat pipe 230. The heat pipe 230 exchanges heat with the heat dissipation fins 210, thereby improving the heat dissipation efficiency. In addition, the liquid cooling tank 110 is opened in the resistor housing 100 and filled with refrigerant. In this way, the heat dissipation method of the brake resistor is increased to a dual heat dissipation method of aluminum shell heat dissipation and liquid cooling.

[0032] Furthermore, the liquid cooling tank 110 is embedded with multiple sets of semiconductor cooling fins 240, which are connected to the liquid cooling tank 110 in a rectangular shape and at equal intervals. The semiconductor cooling fins 240 are arranged to cool the built-in refrigerant, thereby preventing the refrigerant temperature from increasing due to heat exchange and affecting the heat dissipation effect.

[0033] Working principle: When the utility model is in use, the heat generated by the operation of the resistor housing 100 is conducted away through the provided heat dissipation fins 210, and the micro pump 220 works to supply the refrigerant in the liquid cooling tank 110 to the heat pipe 230, and the heat dissipation fins 210 are heat exchanged through the heat pipe 230 to improve the heat dissipation efficiency. In addition, a liquid cooling tank 110 is opened in the resistor housing 100 and filled with refrigerant, so that the heat dissipation method of the brake resistor is increased to aluminum shell heat dissipation plus liquid cooling with dual heat dissipation.

[0034] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A liquid-cooled brake resistor, characterized in that: include: A resistor housing (100) connected to the base frame, wherein a liquid cooling tank (110) is provided in the resistor housing (100), and the liquid cooling tank (110) is filled with a refrigerant; The heat conducting component (200) is connected to the resistor housing (100) and assists in heat conduction and heat dissipation of the resistor housing (100).

2. A liquid-cooled brake resistor according to claim 1, characterized in that: Two groups of connection seats (120) are symmetrically connected to the bottoms of the left and right sides of the resistor housing (100), and the connection seats (120) are adapted to external connection bolts.

3. The liquid-cooled brake resistor according to claim 2, characterized in that: The heat-conducting component (200) comprises a plurality of groups of heat-dissipating fins (210) connected to the outside of the resistor housing (100) and a micro pump (220) disposed in the liquid cooling tank (110); the plurality of groups of heat-dissipating fins (210) are arranged linearly and equidistantly from top to bottom along the outside of the resistor housing (100).

4. The liquid-cooled brake resistor according to claim 3, characterized in that: The micro pump (220) input port is connected to the liquid cooling tank (110), the micro pump (220) output port is connected to a three-way pipe (221), and both ends of the three-way pipe (221) are connected to heat conduction pipes (230).

5. The liquid-cooled brake resistor according to claim 4, characterized in that: The heat conducting pipe (230) is wound around the heat dissipation fin (210), and the heat conducting pipe (230) is connected to the outside of the heat dissipation fin (210) in a curved shape and at equal distances.

6. The liquid-cooled brake resistor according to claim 5, characterized in that: The liquid cooling tank (110) is embedded with a plurality of semiconductor cooling fins (240), and the plurality of semiconductor cooling fins (240) are connected to the liquid cooling tank (110) in a rectangular and equidistant manner.

Images