Aluminum die-casting box body with capacitor heat dissipation function

Abstract

The utility model discloses an aluminum die-casting box body with a capacitor heat dissipation function, which comprises a box body, the box body is integrally formed by die-casting a bearing plate and a side wall plate surrounding the periphery of the bearing plate, the side wall plate and the bearing plate define an upper accommodating cavity and a lower accommodating cavity, a plurality of heat dissipation teeth are arranged at the rear end part in the lower accommodating cavity, and the heat dissipation teeth are arranged at the rear end part of the lower accommodating cavity. The front end portion of the upper containing cavity is provided with a plurality of air channels, the air channels are communicated with one another, the air channels are communicated with the heat dissipation teeth, the rear end portion of the upper containing cavity is provided with capacitor fixing positions, and the capacitor fixing positions correspond to the heat dissipation teeth up and down. According to the utility model, efficient heat dissipation of the capacitor is realized, the overall performance and the use convenience of the box body are improved, and installation and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of vehicle-mounted motor controller, concretely relates to an aluminum die-casting box body with capacitor heat dissipation function. BACKGROUND

[0002] In the current main drive motor controller market, the capacitor is one of the indispensable devices; while exerting the maximum performance of the controller, how to control the capacitor temperature in the limited space in the appropriate interval is the direction of the whole industry research; the capacitor temperature is too high and will affect the performance output of the whole machine, and the service life of the capacitor in the high temperature environment will be greatly shortened;

[0003] However, the heat dissipation mode of some existing capacitors is relatively single, and the capacitors are cooled through the shell with certain heat dissipation effect, which is large in size and high in power consumption, so that the service life of the capacitors is affected after long time use, and some existing capacitors are directly connected with the shell, so that the later disassembly and maintenance are time-consuming, therefore, the problem needs to be solved.

[0004] Therefore, a good capacitor heat dissipation scheme can well reduce the temperature rise of the heating component, thereby playing a decisive role in the performance and service life of the motor controller. SUMMARY

[0005] The utility model discloses a kind of aluminum die-casting box body with capacitor heat dissipation function, to solve the problem presented in above background technology.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of aluminum die-casting box body with capacitor heat dissipation function, including box, the box is integrally die-casting formed by bearing plate and the side wall board around the periphery of bearing plate, the side wall board and bearing plate are enclosed into upper accommodating cavity and lower accommodating cavity, the rear end portion in the lower accommodating cavity is provided with multiple heat dissipation teeth, and the front end portion is provided with multiple air ducts, the multiple air ducts are communicated between air duct and heat dissipation teeth, the rear end portion of the upper accommodating cavity is provided with capacitor fixed position, and the capacitor fixed position is corresponded with heat dissipation teeth up and down.

[0007] Preferably, cooling water channel is provided in the front end portion of the lower accommodating cavity of the bearing plate, and the water inlet and water outlet of the cooling water channel are provided on the side wall board.

[0008] Preferably, multiple heat dissipation teeth are arranged in parallel along the width direction of capacitor fixed position.

[0009] Preferably, motor interface, control wire harness interface and multiple main battery interfaces are further provided on the side wall board located at the front end of the bearing plate.

[0010] Preferably, the reinforcing rib mounting feet are symmetrically arranged on the side wall plates located on both sides of the bearing plate.

[0011] Preferably, the air vent valves are symmetrically arranged on the side wall plates located on one side of the bearing plate.

[0012] Preferably, the wire harness sheet metal fixing columns are arranged on the side wall plates located outside the reinforcing rib mounting feet.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. By arranging multiple heat dissipation teeth in the lower accommodating cavity and multiple air ducts at the front end, an efficient heat dissipation channel is formed, the heat dissipation teeth correspond to the capacitor fixing positions up and down, so that the heat generated by the capacitor can be quickly conducted to the air duct through the heat dissipation teeth, and the heat is quickly taken away through the air flow in the air duct, effectively reducing the operating temperature of the capacitor and improving its stability and service life.

[0015] 2. By additionally arranging a cooling water channel at the front end of the lower accommodating cavity of the bearing plate, circulating cooling liquid through the water inlet and water outlet, an additional heat dissipation means is provided, and this double heat dissipation design ensures that the capacitor can maintain a suitable operating temperature even in a high temperature environment.

[0016] 3. By arranging a motor interface, a control wire harness interface and multiple main battery interfaces on the box body, connection and control with other devices or systems are facilitated, and the integration and use convenience of the box body are improved.

[0017] 4. The reinforcing rib mounting feet effectively enhance the overall structural strength of the box body, improve the deformation resistance and compression resistance, and ensure the stability and durability of the box body.

[0018] 5. The air vent valves arranged on the side wall plates can stabilize the air pressure in the case during startup or maintenance, ensure the air circulation inside the box body, prevent external impurities such as dust and moisture from entering the box body, and protect the safety of internal electronic components.

[0019] 6. The design of the wire harness sheet metal fixing column makes the fixation of the wire harness more stable and easy to install and maintain, the wiring is clear and orderly, and the work efficiency and user experience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structural schematic view of the utility model;

[0021] Fig. 2 is a bottom view of the utility model;

[0022] Fig. 3 is a side view of the utility model.

[0023] In the figure: 1 box, 2 bearing plate, 3 side wall plate, 4 heat dissipation tooth, 5 air duct, 6 capacitor fixing position, 7 cooling water channel, 71 water inlet, 72 water outlet, 8 control wire harness interface, 9 main battery interface, 10 reinforcing rib mounting foot, 11 air valve, 12 wire harness sheet metal fixing column, 13 motor interface. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] As Figs. 1-3 A specific embodiment of the aluminum die-casting box body with capacitor heat dissipation function is shown, which comprises a box body 1, the box body 1 is integrally die-cast by a bearing plate 2 and a side wall plate 3 surrounding the periphery of the bearing plate 2, the side wall plate 3 and the bearing plate 2 enclose an upper accommodating cavity and a lower accommodating cavity, a plurality of heat dissipation teeth 4 are arranged at the rear end of the lower accommodating cavity, a plurality of air ducts 5 are arranged at the front end of the lower accommodating cavity, the plurality of air ducts 5 are communicated with each other and with the heat dissipation teeth 4, a capacitor fixing position 6 is arranged at the rear end of the upper accommodating cavity, and the capacitor fixing position 6 corresponds to the heat dissipation teeth 4 in an up-down direction;

[0026] Further, a cooling water channel 7 is arranged at the front end of the lower accommodating cavity of the bearing plate 2, the water inlet 71 and the water outlet 72 of the cooling water channel 7 are arranged on the side wall plate 3, and the double heat dissipation design ensures that the capacitor can maintain a suitable working temperature even in a high-temperature environment;

[0027] Further, the plurality of heat dissipation teeth 4 are arranged in parallel along the width direction of the capacitor fixing position 6, which disperses the stress received by the capacitor during work and reduces the damage risk caused by stress concentration, can effectively increase the heat dissipation area of the capacitor shell, and makes the heat generated by the capacitor during work dissipate faster;

[0028] Further, a motor interface 13, a control wire harness interface 8 and a plurality of main battery interfaces 9 are arranged on the side wall plate 3 at the front end of the bearing plate 2, which facilitates connection and control with other devices or systems, improves the integration and use convenience of the box body;

[0029] Further, reinforcing rib mounting feet 10 are symmetrically arranged on the side wall plates 3 at both sides of the bearing plate 2, which facilitates the installation of the case and also enhances the overall structural strength of the box body, improves the anti-deformation and anti-pressure capacity, and ensures the stability and durability of the box body;

[0030] Further, the air vent 11 is symmetrically arranged on the side wall plate 3 located at one side of the bearing plate 2, so as to stabilize the air pressure in the cabinet;

[0031] Further, the wire harness sheet metal fixing column 12 is arranged on the side wall plate 3 located outside the reinforcing rib mounting foot 10, so that the fixation of the wire harness is more stable.

[0032] In summary, the cabinet is directly molded, the heat dissipation teeth are grown below the position where the capacitor is installed (the outside of the cabinet), the bottom of the cabinet is designed to form an independent air duct, the natural wind flows through the air duct to carry away the heat generated by the capacitor, the cooling water channel design provides an additional heat dissipation means, and the double heat dissipation design ensures that the capacitor can maintain a suitable working temperature even in a high temperature environment, so that the capacitor is efficiently cooled, and the overall performance and use convenience of the cabinet are improved.

[0033] The applicant further declares that the implementation method and device structure of the utility model are illustrated by the above embodiments, but the utility model is not limited to the above embodiments, that is, it does not mean that the utility model must rely on the above method and structure to be implemented. It should be understood by those skilled in the art that any improvement on the utility model, equivalent replacement of the implementation method selected by the utility model, addition of steps, selection of specific modes and the like fall within the protection scope and disclosed scope of the utility model.

[0034] The utility model is not limited to the above embodiments, and all modes adopting similar structures and methods to achieve the purpose of the utility model fall within the protection scope of the utility model.

Claims

1. An aluminum die-cast housing with capacitor heat dissipation function, comprising a housing (1), wherein the housing (1) is integrally die-cast from a support plate (2) and a side wall plate (3) surrounding the periphery of the support plate (2), characterized in that: The side wall plate (3) and the bearing plate (2) form an upper accommodating cavity and a lower accommodating cavity. Multiple heat dissipation teeth (4) are provided at the rear end of the lower accommodating cavity, and multiple air ducts (5) are provided at the front end. The multiple air ducts (5) are connected to each other and the air ducts (5) are connected to the heat dissipation teeth (4). A capacitor fixing position (6) is provided at the rear end of the upper accommodating cavity. The capacitor fixing position (6) corresponds to the heat dissipation teeth (4) vertically.

2. The aluminum die-cast housing with capacitor heat dissipation function according to claim 1, characterized in that: A cooling water channel (7) is provided at the front end of the lower accommodating cavity of the bearing plate (2), and the inlet (71) and outlet (72) of the cooling water channel (7) are provided on the side wall plate (3).

3. The aluminum die-cast housing with capacitor heat dissipation function according to claim 1, characterized in that: The heat dissipation teeth (4) are arranged in parallel along the width direction of the capacitor fixing position (6).

4. The aluminum die-cast housing with capacitor heat dissipation function according to claim 2, characterized in that: The side wall plate (3) located at the front end of the support plate (2) is also provided with a motor interface (13), a control harness interface (8) and multiple main battery interfaces (9).

5. The aluminum die-cast housing with capacitor heat dissipation function according to claim 2, characterized in that: Reinforcing rib mounting feet (10) are symmetrically provided on the side wall plates (3) located on both sides of the bearing plate (2).

6. The aluminum die-cast housing with capacitor heat dissipation function according to claim 2, characterized in that: Ventilation valves (11) are symmetrically provided on the side wall plate (3) located on one side of the bearing plate (2).

7. An aluminum die-cast housing with capacitor heat dissipation function according to claim 5, characterized in that: A wire harness sheet metal fixing post (12) is provided on the side wall plate (3) located outside the reinforcing rib mounting foot (10).

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