Automobile water-cooling heat-conducting resistor

Abstract

The utility model relates to a resistor heat dissipation component, in particular to an automobile water-cooling heat conduction resistor, which comprises a casing, a resistor disc, a base and a cover plate, the cover plate is fixedly mounted on the base through a fixing part, one side of the casing is provided with a communication hole for insertion of a resistor lead, the resistor disc is mounted in the casing, and the casing is provided with a heat dissipation hole. The two sides of the resistor disc are each provided with a set of aluminum oxide plates, a set of aluminum nitride plates are installed between the aluminum oxide plate close to the side of the base and the bottom of the base, an insulating plate and a mica partition plate are sequentially installed between the end, away from the side of the base, of the aluminum oxide plate and the cover plate, and the resistor wire is fixedly connected with the two sets of aluminum oxide plates. According to the utility model, a water-cooling heat conduction technology is adopted, heat generated by the resistance plate can be taken away quickly, and the temperature of the resistance element is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a resistor heat dissipation component, in particular to an automobile water-cooled thermal conductive resistor. Background Art

[0002] Automotive resistors play a vital role in automotive electronic systems. Their core function is to limit the flow of current in the circuit. Fixed resistors and variable resistors are widely used in automotive electronic systems.

[0003] In existing technologies, resistors in automotive electronic systems typically use air or fan heat conduction. However, due to the increasing power of automotive electronic systems, traditional heat conduction methods can no longer meet the heat conduction requirements of high-power resistors. Overheating not only leads to a decrease in resistor performance, but may also cause safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a water-cooled thermally conductive resistor for automobiles, which is used to solve the problem that resistors in existing automotive electronic systems usually use air or fan heat conduction methods, which can no longer meet the thermal conductivity requirements of high-power resistors.

[0005] To achieve the above-mentioned objectives, the present invention provides an automotive water-cooled thermal resistor, comprising a housing and a resistor sheet, which comprises a base and a cover plate, wherein the cover plate is fixedly mounted on the base via a fixing member, a connecting hole for inserting a resistor wire is provided on one side of the housing, the resistor sheet is mounted in the housing, a group of aluminum oxide plates are respectively mounted on both sides of the resistor sheet, wherein a group of aluminum nitride plates are mounted between the aluminum oxide plate close to the base side and the bottom of the base, an insulating plate and a mica partition are sequentially mounted between one end of the aluminum oxide plate away from the base side and the cover plate, the resistor wire is fixedly connected to the two groups of aluminum oxide plates, and a groove for avoiding the resistor wire is provided on the insulating plate and the aluminum oxide plate.

[0006] As a further solution of the present invention, the cover plate is made of stainless steel.

[0007] As a further solution of the present invention, the base is made of aluminum.

[0008] As a further solution of the present invention, the alumina plate contains 95% alumina.

[0009] As a further solution of the present invention, the fixing member is a fixing screw, and a group of mounting holes for installing the fixing screws are correspondingly provided at the four groups of corners of the base.

[0010] Compared with the existing technology, the utility model adopts water-cooled heat conduction technology, which can quickly take away the heat generated by the resistance element, effectively reducing the temperature of the resistance element and improving the stability and safety of the automotive electronic system. At the same time, the structure is compact, integrating the resistance plate and the water-cooled heat conductor into one, which can reduce the occupied space and facilitate installation and layout. At the same time, the laminated structure designed in the utility model improves the high-pressure resistance performance of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic structural diagram of a water-cooled thermal resistor for an automobile in the present invention.

[0012] In the accompanying drawings: 1. Cover plate; 2. Mica separator; 3. Insulation plate; 4. Upper aluminum plate; 5. Resistor wire; 6. Lower aluminum plate; 7. Aluminum nitride plate; 8. Base. DETAILED DESCRIPTION

[0013] The technical solution of the present utility model will be further described in detail below in conjunction with specific implementation methods.

[0014] As shown in Figure 1, in an embodiment of the present invention, a water-cooled thermal resistor for automobiles includes a housing and a resistor sheet, which includes a base 8 and a cover plate 1. The cover plate 1 is fixedly mounted on the base 8 by a fixing member. A connecting hole for inserting a resistor wire 5 is provided on one side of the housing. The resistor sheet is installed in the housing. A group of aluminum oxide plates are installed on both sides of the resistor sheet, wherein a group of aluminum nitride plates 7 are installed between the aluminum oxide plate close to the base 8 and the bottom of the base 8. An insulating plate 3 and a mica separator 2 are installed in sequence between one end of the aluminum oxide plate away from the base 8 and the cover plate 1. The resistor wire 5 is fixedly connected to the two groups of aluminum oxide plates. The insulating plate 3 and the aluminum oxide plate are provided with a groove for avoiding the resistor wire 5. The laminated structure designed by the present invention improves the high-voltage resistance of the present invention.

[0015] The cover plate 1 is made of stainless steel, the base 8 is made of aluminum, and the alumina plate contains 95% alumina.

[0016] As shown in FIG. 1 , in the embodiment of the present invention, the fixing member is a fixing screw, and a group of mounting holes for installing the fixing screws are correspondingly provided at the four groups of corners of the base 8 .

[0017] In the present invention, the resistor is made of a material with a high thermal conductivity coefficient, such as copper or aluminum, to ensure that heat can be quickly transferred to the water-cooled heat conductor. Two sets of alumina plates are attached to both sides of the resistor, which can be divided into an upper aluminum plate 4 and a lower aluminum plate 6. The high-efficiency thermal conductive plate design of the upper aluminum plate 4 and the lower aluminum plate 6 increases the heat conduction area, improves the heat conduction efficiency, and conducts the heat in the alumina plate to achieve heat dissipation.

[0018] Compared with the existing technology, the utility model adopts water-cooled heat conduction technology, which can quickly take away the heat generated by the resistance element, effectively reducing the temperature of the resistance element and improving the stability and safety of the automotive electronic system. At the same time, the structure is compact, integrating the resistance plate and the water-cooled heat conductor into one, which can reduce the occupied space and facilitate installation and layout. At the same time, the laminated structure designed in the utility model improves the high-pressure resistance performance of the utility model.

[0019] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An automotive water-cooled thermal resistor, characterized in that: It includes a casing and a resistor, which includes a base and a cover plate. The cover plate is fixedly installed on the base by a fixing piece. A connecting hole for inserting the resistor wire is provided on one side of the casing. The resistor is installed in the casing. A group of aluminum oxide plates are installed on both sides of the resistor, wherein a group of aluminum nitride plates are installed between the aluminum oxide plate close to the base and the bottom of the base, and an insulating plate and a mica partition are installed in sequence between one end of the aluminum oxide plate away from the base and the cover plate. The resistor wire is fixedly connected to the two groups of aluminum oxide plates, and the insulating plate and the aluminum oxide plate are provided with a groove for avoiding the resistor wire.

2. The automotive water-cooled thermal resistor according to claim 1, characterized in that: The cover plate is made of stainless steel.

3. The automotive water-cooled thermal resistor according to claim 1, characterized in that: The base is made of aluminum.

4. The automotive water-cooled thermal resistor according to claim 1, characterized in that: The fixing member is a fixing screw, and the four groups of corners of the base are correspondingly provided with a group of mounting holes for installing the fixing screws.

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