CN216146644U - Heat radiation structure of vehicle body controller - Google Patents

Abstract

The utility model relates to the field of electric automobiles, in particular to a heat dissipation structure of an automobile body controller; the heat dissipation device comprises a sealed box body, wherein a heat dissipation plate is arranged at the bottom of the sealed box body, first heat dissipation fins are arranged on the heat dissipation plate in parallel, a cover plate covers the tops of the first heat dissipation fins, a side plate covers the side surface of each first heat dissipation fin, through holes are formed in the first heat dissipation fins, and a water inlet and a water outlet are formed in the first heat dissipation fins or the side plate; the cover plate, the side plates at two sides and the first radiating fins at the end part form a sealed containing cavity, heat generated by the controller is conducted to the first radiating fins, the side plates and the cover plate through the radiating plate, cooling liquid enters a cavity formed among the first radiating fins from the water inlet, is filled in the cavity, exchanges heat with the first radiating fins, the side plates and the cover plate, then flows out of the water outlet, enters the water tank and is continuously and circularly radiated; in this scheme, coolant liquid is big with heat radiation structure area of contact, and the circulation radiating effect is good, and occupation space is also less simultaneously.

Description

Heat radiation structure of vehicle body controller

Technical Field

The utility model relates to the field of electric automobiles, in particular to a heat dissipation structure of an automobile body controller.

Background

At present, the new energy automobile is the main direction of automobile field development in various countries with the advantages of low energy consumption and environmental protection, and an automobile body controller is installed in one of the core components of the new energy automobile, generally operates in the environments of high and low temperature, wading and cyclic vibration, and needs to adopt a waterproof and dustproof sealing design for a case of the controller in order to enable the controller to normally work in a severe environment. Because the controller is internally provided with high-power-consumption electronic components and has the characteristic of large heat productivity, and the heat dissipation effect of a single heating component directly influences the performance and the service life of equipment, the controller needs to be reasonably designed for heat dissipation so as to prolong the safe service life of the new energy automobile.

Patent number CN206640925U discloses an electric automobile controller heat radiation structure, heat radiation structure includes box and heat dissipation base plate, wherein: the box body is provided with a first cavity matched with the shape and the size of the bus capacitor and a second cavity matched with the shape and the size of the power panel, and a first cooling liquid channel is arranged between the first cavity and the second cavity of the box body; the heat dissipation substrate is assembled at an opening of a first cavity of the box body, an IGBT module mounting position is arranged on the upper surface of the heat dissipation substrate, and a second cooling liquid channel is arranged between the upper surface and the lower surface of the heat dissipation substrate; this scheme realizes the heat dissipation of controller through two heat dissipation water courses, has improved the radiating effect, but its coolant liquid passageway volume is little, and the area of contact of coolant liquid and heat dissipation base plate is also big inadequately, and the radiating effect can further improve.

SUMMERY OF THE UTILITY MODEL

Based on the above description, the utility model provides a heat dissipation structure of a vehicle body controller, so as to solve the problem that in the prior art, the contact area between cooling liquid and a heat dissipation plate is insufficient, so that the heat dissipation efficiency is improved.

The technical scheme for solving the technical problems is as follows:

the utility model provides a car body controller heat radiation structure, includes sealed box, sealed box bottom is equipped with the heating panel, parallel arrangement has first heat radiation fin on the heating panel, first heat radiation fin top covers there is the apron, first heat radiation fin side covers there is the curb plate, the through-hole has been seted up on the first heat radiation fin, water inlet and delivery port have been seted up on first heat radiation fin or the curb plate.

Furthermore, the first heat dissipation fins are divided into single arrays and double arrays, the through holes in the single arrays are defined as first holes, the through holes in the double arrays are defined as second holes, and the first holes and the second holes are respectively located at two ends of the first heat dissipation fins.

Further, the first hole is close to the heat dissipation plate or the cover plate, and correspondingly, the second hole is close to the cover plate or the heat dissipation plate.

Furthermore, a plurality of heat dissipation columns are arranged on the first heat dissipation fins.

Furthermore, two ends of the heat dissipation column are respectively connected with the heat dissipation plate and the cover plate.

Furthermore, the heat dissipation columns on the adjacent first heat dissipation fins are arranged in a staggered mode.

Furthermore, the cover plate is provided with second heat dissipation fins.

Furthermore, a third heat dissipation fin is arranged on the side plate.

Compared with the prior art, the technical scheme of the application has the following beneficial technical effects:

the cover plate, the side plates at two sides and the first radiating fins at the end part form a sealed containing cavity, heat generated by the controller is conducted to the first radiating fins, the side plates and the cover plate through the radiating plate, cooling liquid enters a cavity formed among the first radiating fins from the water inlet, is filled in the cavity, exchanges heat with the first radiating fins, the side plates and the cover plate, then flows out of the water outlet, enters the water tank and is continuously and circularly radiated; in this scheme, coolant liquid is big with heat radiation structure area of contact, and the circulation radiating effect is good, and occupation space is also less simultaneously.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;

fig. 3 is a schematic structural view of the cover plate and the second heat dissipation fins of fig. 2;

in the drawings, the components represented by the respective reference numerals are listed below:

1. sealing the box body; 2. a heat dissipation plate; 201. a first heat radiation fin; 202. a first hole; 203. a second hole; 204. a heat-dissipating column; 205. a water inlet; 206. a water outlet; 3. a cover plate; 301. a second heat radiation fin; 4. a side plate; 401. and a third heat dissipation fin.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Embodiments of the present application are set forth in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

As shown in fig. 1-3, a heat dissipation structure for a vehicle body controller comprises a sealed box 1, a heat dissipation plate 2 is arranged at the bottom of the sealed box 1, and various heating components such as resistors, diodes, IGBTs and the like in the sealed box 1 are mounted against the heat dissipation plate 2 as much as possible or connected with the heat dissipation plate 2 by heat conduction members.

The heat dissipation plate 2 is provided with first heat dissipation fins 201 in parallel, the top of the first heat dissipation fins 201 is covered with the cover plate 3, the side surfaces of the first heat dissipation fins 201 are covered with the side plate 4, the first heat dissipation fins 201 are provided with through holes, and the first heat dissipation fins 201 or the side plate 4 are provided with water inlets 205 and water outlets 206.

The cover plate 3, the side plates 4 at two sides and the first heat dissipating fins 201 at the end form a sealed cavity, heat generated by the controller is conducted to the first heat dissipating fins 201, the side plates 4 and the cover plate 3 through the heat dissipating plate 2, in this embodiment, the water inlet 205 and the water outlet 206 are through holes, and the cooling liquid enters the cavity formed among the first heat dissipating fins 201 from the water inlet 205, exchanges heat with the first heat dissipating fins 201, the side plates 4 and the cover plate 3, then flows out of the water outlet 206 into the water tank, and is continuously circulated for heat dissipation.

The first heat dissipation fins 201 are divided into single-array and double-array, the through holes on the single-array are defined as first holes 202, the through holes on the double-array are defined as second holes 203, and the first holes 202 and the second holes 203 are respectively located at two ends of the first heat dissipation fins 201.

If the positions of the through holes are not designed, the cooling fluid fills the periphery of the first radiator fins 201, but a dead space is easily generated during the circulation process, which reduces the heat dissipation efficiency. The first holes 202 and the second holes 203 are respectively located at two ends of the first heat dissipation fins 201, so that the area of a quiet zone can be effectively reduced, the cooling liquid can fully flow, and the over-high temperature at a local position can be avoided.

Further, the first hole 202 is disposed near the heat dissipation plate 2 or the cover plate 3, and correspondingly, the second hole 203 is disposed near the cover plate 3 or the heat dissipation plate 2. That is, when the first hole 202 is close to the heat radiating plate 2, the second hole 203 is close to the cover plate 3, and when the first hole 202 is close to the cover plate 3, the second hole 203 is close to the heat radiating plate 2. For some controllers with larger volume, the height of the first radiator fins 201 is also increased correspondingly, the size of the through holes is generally not increased greatly, if the through holes are opened in the middle area of the first radiator fins 201, the flow speed of the fluid formed by the cooling liquid at the edge is far away from the middle area, i.e. the heat exchange efficiency at the edge is reduced, and the first holes 202 and the second holes 203 are respectively close to and far away from the radiator plate 2 or the cover plate 3, which improves the problem.

Further, the first heat dissipation fins 201 are provided with a plurality of heat dissipation posts 204. The heat dissipation pillar 204 is preferably a cylinder and is integrally formed with the first heat dissipation fins 201, and the arc structure of the heat dissipation pillar in contact with the cooling fluid has a small influence on the fluid flow, and at the same time, the contact area with the fluid can be effectively increased, thereby improving the heat dissipation effect.

Preferably, the two ends of the heat dissipation column 204 are respectively connected with the heat dissipation plate 2 and the cover plate 3, so that the contact area between the cover plate 3 and the heat dissipation plate 2 can be effectively increased, the heat conduction effect is improved, and the heat dissipation effect is also improved.

Furthermore, the heat dissipation columns 204 on the adjacent first heat dissipation fins 201 are staggered, so that narrow channels of fluid caused by too close heat dissipation columns 204 on the adjacent first heat dissipation fins 201 are avoided, and therefore a quiet area is increased, and heat dissipation efficiency is affected.

Further, the cover plate 3 is provided with second heat dissipation fins 301, and the second heat dissipation fins 301 can enhance heat dissipation of the cover plate 3, that is, enhance heat dissipation of the entire controller, on the premise that space allows. In addition, the distance between the first heat dissipating fins 201 needs to be designed in consideration of the viscosity of the cooling liquid, and the distance between the first heat dissipating fins cannot reach the distance close to the heat dissipating fins depending on the air convection, so that the second heat dissipating fins 301 are denser than the first heat dissipating fins 201, and have a better heat dissipating effect.

Further, the side plate 4 is provided with a third heat sink fin 401, similarly as above.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (8)

1. The utility model provides a vehicle body controller heat radiation structure, its characterized in that, includes sealed box, sealed box bottom is equipped with the heating panel, parallel arrangement has first heat radiation fin on the heating panel, first heat radiation fin top covers there is the apron, first heat radiation fin side covers there is the curb plate, the through-hole has been seted up on the first heat radiation fin, water inlet and delivery port have been seted up on first heat radiation fin or the curb plate.

2. The vehicle body controller heat dissipation structure of claim 1, wherein the first heat dissipation fin is divided into a single array and a double array, the through holes in the single array are defined as first holes, the through holes in the double array are defined as second holes, and the first holes and the second holes are respectively located at two ends of the first heat dissipation fin.

3. The vehicle body controller heat dissipation structure according to claim 2, wherein the first hole is provided near a heat dissipation plate or a cover plate, and correspondingly, the second hole is provided near the cover plate or the heat dissipation plate.

4. The vehicle body controller heat dissipation structure of claim 1, wherein the first heat dissipation fin has a plurality of heat dissipation posts thereon.

5. The vehicle body controller heat dissipation structure of claim 4, wherein both ends of the heat dissipation column are connected to the heat dissipation plate and the cover plate, respectively.

6. The vehicle body controller heat dissipation structure of claim 4, wherein the heat dissipation posts on adjacent first heat dissipation fins are staggered.

7. The vehicle body controller heat dissipation structure of claim 1, wherein a second heat dissipation fin is provided on the cover plate.

8. The vehicle body controller heat dissipation structure of claim 1, wherein a third heat dissipation fin is provided on the side plate.

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