CN212436208U

CN212436208U - Water-cooling radiator and new energy automobile motor controller

Info

Publication number: CN212436208U
Application number: CN202022179365.9U
Authority: CN
Inventors: 任康乐; 沈捷
Original assignee: Leadrive Technology Shanghai Co Ltd
Current assignee: Leadrive Technology Shanghai Co Ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-01-29
Anticipated expiration: 2030-09-28

Abstract

The utility model provides a water-cooling radiator and new energy automobile are with machine controller, include: a main body including a heat dissipation chamber: the main body also comprises an annular groove which is arranged around the heat dissipation cavity; the water channel inlet and the water channel outlet are positioned on the main body and are communicated with the heat dissipation cavity; the shunt is detachably arranged in the heat dissipation cavity and comprises a drainage part, a flow guiding part and a penetrating part, wherein the drainage part and the flow guiding part are positioned at a first end and a second end opposite to the first end of the shunt, and the penetrating part is positioned between the first end and the second end and penetrates through the shunt; when the flow divider is arranged in the heat dissipation cavity, the flow guiding part and the flow guiding part are matched with the water channel inlet and the water channel outlet to form a continuous water channel for flushing the heating component. The utility model discloses effectively dispel the heat to the power module of pin-fin structure, reduce the processing cost of radiator, improve the sealing reliability of radiator.

Description

Water-cooling radiator and new energy automobile motor controller

Technical Field

The utility model belongs to the technical field of machine controller, concretely relates to water-cooling radiator and new energy automobile are with machine controller.

Background

For the motor controller for the new energy automobile, because the power module has large power and small volume, a water-cooling radiator is usually required to be equipped for forcibly cooling the motor controller, so that the continuous output power can be ensured. In order to reduce the cost of the structural components and facilitate the assembly of the components, the heat sink is generally directly integrated with the main housing and mass-produced by a die-casting process. However, due to the limitations of the die casting process, it is often difficult to directly form a closed annular waterway. To solve this problem, a motor controller radiator is known in which a bottom sealing cover plate is screwed with a plurality of screws to press a gasket to seal a water passage, for example, patent document 1, and another motor controller radiator in which an upper cover plate and a lower cover plate are welded together by a welding process such as brazing or friction stir welding to form a sealed water passage, for example, patent document 2.

Patent document 1: CN 207340383U motor controller radiator and motor controller who uses thereof

Patent document 2: CN 101697448B converter power module double-sided water-cooling radiator

However, in the first scheme, the water channel is sealed in a manner that the cover plate is screwed to compress the sealing ring, so that two parts, namely the sealing ring and the cover plate, are added, the cost and the complexity of the installation process are increased, and the risk of sealing failure caused by aging of the sealing ring and screw loosening is also brought; in the second scheme, welding processes such as brazing are adopted, so that the process cost and complexity are increased, and meanwhile, bubbles or cracks generated by die casting are prone to cause poor sealing performance around the welding seam.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to overcome the shortcoming of the prior art, the utility model provides a water-cooling radiator and new energy automobile are with machine controller to reduce the processing cost, improve the sealing reliability.

In order to achieve the above object, there is provided a water-cooled radiator including:

a body, the body includes a heat dissipation chamber: the main body further comprises an annular groove which is arranged around the heat dissipation cavity;

the water channel inlet and the water channel outlet are positioned on the main body and are communicated with the heat dissipation cavity;

the shunt is detachably arranged in the heat dissipation cavity and comprises a drainage part and a flow guide part penetrating part, the drainage part and the flow guide part are respectively positioned at a first end and a second end opposite to the first end of the shunt, and the penetrating part is positioned between the first end and the second end and penetrates through the shunt;

when the flow divider is arranged in the heat dissipation cavity, the flow guiding part and the flow guiding part are matched with the water channel inlet and the water channel outlet to form a continuous water channel for flushing the heating component.

Further, the drainage portion includes the drainage groove, when the shunt install with in the heat dissipation intracavity, the drainage groove with water course entry UNICOM.

Further, the drainage groove includes a first surface, a second surface and a third surface, the first surface forming the bottom surface of the drainage groove, the second surface and the third surface together forming the slope side of the drainage groove.

Further, the flow guide portion includes an arcuate corner capable of guiding the water flow to turn.

Further, the through portion includes a void that extends transversely through the diverter.

Furthermore, the upper surface and the lower surface of the heat dissipation cavity are both penetrating surfaces.

Furthermore, the upper surface of the heat dissipation cavity is a penetrating surface, and the lower surface of the heat dissipation cavity is a closed structure.

Further, the water channel inlet and the water channel outlet are located on the same side of the main body.

Further, the waterway inlet and the waterway outlet are respectively located at both sides of the body.

The utility model also provides a motor controller for new energy automobile, include as above water-cooling radiator.

Compared with the prior art, the utility model discloses can guarantee, under the prerequisite that does not adopt complicated technology such as friction stir welding or sealed apron, form the sealed water course that the performance is good, effectively dispel the heat to the power module of pin-fin structure, reduce the processing cost of radiator, improve the sealing reliability of radiator simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of the water-cooled heat sink of the present invention.

Fig. 2 is a schematic view of an embodiment of the water-cooled heat sink of the present invention.

Fig. 3 is a schematic view of another embodiment of the water-cooled heat sink of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

In an embodiment of the present invention, as shown in fig. 1, there is provided a water-cooled heat sink, including:

a body 1 comprising a heat dissipation chamber 11: the main body 1 further comprises an annular groove 12, and the annular groove 12 is arranged around the heat dissipation cavity 11;

the water channel inlet 3 and the water channel outlet 4 are positioned on the main body 1 and are communicated with the heat dissipation 11 cavity;

the flow divider 2 is detachably mounted in the heat dissipation cavity 11, the flow divider 2 comprises a flow guiding part 21, a flow guiding part 22 and a penetrating part 23, the flow guiding part 21 and the flow guiding part 22 are respectively located at a first end and a second end opposite to the first end of the flow divider 2, and the penetrating part 23 is located between the first end and the second end and penetrates through the flow divider 21 so as to reduce the overall weight;

when the flow divider 2 is installed inside the heat dissipation cavity 11, the drainage portion 21 and the flow guide portion 22 form a continuous water channel for flushing heat-generating components in cooperation with the water channel inlet 3 and the water channel outlet 4.

The utility model can realize the water-cooling heat dissipation of the double-power module/single-power module only by a simple installation process; meanwhile, the main radiator (main shell) can be formed by integral die-casting, the splitter plate can be processed by materials with low cost and easy forming, and on the premise of not adopting a complex process, the efficient water channel structure is realized, the processing cost is reduced, and the risk of sealing failure is reduced

In one embodiment, the main body 1 of the water-cooled heat sink is integrally formed by die-casting, and at least one side of the upper and lower surfaces of the internal heat dissipation chamber 11 is penetrated. An annular groove 12 is formed around the penetrated surface for filling a sealing means when connecting with a heat generating component, forming a sealed heat dissipation space inside the heat dissipation chamber 11.

In one embodiment, the flow divider 2 is a plate-like structure and is detachably mounted inside the internal heat dissipation chamber 11 of the main body 1 of the water-cooled heat sink. In one embodiment, the plate-shaped shunt 2 is fixed in the center of the heat dissipation chamber 11 by a screw 13 or a bayonet structure. The plate-shaped shunt 2 fixed at the center of the heat dissipation chamber 11 divides the heat dissipation chamber 11 into an upper part and a lower part, and can simultaneously dissipate heat of the upper and lower heat generating components.

In one embodiment, a sealing material is disposed in the annular groove 12, and the annular groove 12 and the sealing material jointly isolate the inner heat dissipation chamber 11 from the outside of the water-cooled heat sink when the heat dissipation treatment is performed.

In one embodiment, the material of the diverter 2 is aluminum, nylon, or other material that is easily machined and resistant to corrosion.

In one embodiment, when the shunt 2 is installed in the heat dissipation cavity 11, a surface of the shunt 2 and a lower bottom surface of a corresponding heat-generating IGBT are kept with an installation gap of 0.5mm, so as to avoid interference during installation.

In one embodiment, the drainage portion 21 includes a drainage groove that communicates with the waterway inlet 3 when the diverter 2 is installed in the heat dissipation chamber 11.

In one embodiment, the drainage channel comprises first surface 211, second surface 212, and third surface 213, wherein first surface 211 forms the bottom of the drainage channel, and second surface 212 and third surface 213 together form the sloped sides of the drainage channel to facilitate drainage of cooling water from rice inlet 3 into the heat dissipation space.

To improve the diversion of the waterway, the diversion portion 22 includes curved corners that direct the flow of water to turn.

In one embodiment, to reduce the weight and cost of the flow splitter 2 while facilitating process formation, the through portion 23 includes a void extending transversely through the flow splitter 2. The flow distribution plate can form corresponding water channel contour by forming different shapes on the surface.

In one embodiment, as shown in fig. 2, both the upper and lower surfaces of the heat dissipation chamber 11 are penetration surfaces. The upper surface and the lower surface of a radiating cavity 11 of the water-cooled radiator which is integrally formed by die casting are penetrating surfaces, the first pin-fin power module 5 and the second pin-fin power module 6 are respectively positioned on the upper surface and the lower surface of the water-cooled radiator, a sealing ring in the groove 12 is tightly pressed by utilizing the outer edge of the modules through a plurality of screws, and a closed water channel space is formed in a cavity 12 of the radiator; cooling water flows into the upper half part of the concave cavity 11 from the water channel inlet 3 through the drainage groove 21 of the flow divider 2 to cool the water-cooled substrate of the power module 5, then flows into the lower half part of the heat dissipation cavity 11 through the arc-shaped corner 22 of the water-cooled plate 2 to cool the water-cooled substrate of the power module 6, and finally flows out of the radiator through the water channel outlet 4

In one embodiment, as shown in fig. 3, the upper surface of the heat dissipation chamber 11 is a penetrating surface, and the lower surface is a closed structure. The upper surface of a heat dissipation cavity 11 of the water-cooled radiator which is integrally formed by die casting is a penetrating surface, the lower surface of the heat dissipation cavity is of a closed structure, a first pin-fin power module 5 tightly presses a sealing ring in a groove 12 on the upper surface of the water-cooled radiator by utilizing the outer edge of the module through a plurality of screws, and a closed water channel space is formed in a radiator cavity 12; the cooling water flows into the upper half part of the concave cavity 11 from the water channel inlet 3 through the drainage groove 21 of the flow divider 2, cools the water-cooling substrate of the power module 5, then flows into the lower half part of the concave cavity 11 through the arc-shaped corner 22 of the water-cooling plate 2, and finally flows out of the radiator through the water channel outlet 4.

In one embodiment, the waterway inlet 3 and waterway outlet 4 are located on the same side of the body.

In one embodiment, the water channel inlet 3 and the water channel outlet 4 are respectively located at two sides of the main body, and accordingly, the upper water channel and the lower water channel of the splitter plate can form a parallel loop.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A water-cooled heat sink, comprising:

the shunt is detachably arranged in the heat dissipation cavity and comprises a drainage part, a flow guiding part and a penetrating part, wherein the drainage part and the flow guiding part are respectively positioned at a first end and a second end opposite to the first end of the shunt, and the penetrating part is positioned between the first end and the second end and penetrates through the shunt;

2. The water-cooled heat sink of claim 1, wherein the flow-directing portion includes a flow-directing groove that communicates with the water channel inlet when the flow diverter is installed in the heat-dissipating chamber.

3. The water-cooled heat sink of claim 2, wherein the flow-guiding grooves comprise a first surface, a second surface and a third surface, the first surface forming the bottom of the flow-guiding grooves, the second surface and the third surface together forming the sloped sides of the flow-guiding grooves.

4. The water-cooled heat sink of claim 1, wherein the flow guide comprises an arcuate corner capable of directing the flow of water to turn.

5. The water-cooled heat sink of claim 1, wherein the through-penetration includes a slot extending transversely through the flow splitter.

6. The water-cooled heat sink as recited in claim 1, wherein the upper and lower surfaces of the heat dissipation chamber are both penetration surfaces.

7. The water-cooled heat sink as recited in claim 1, wherein the heat dissipation chamber has a top surface that is a through surface and a bottom surface that is a closed structure.

8. The water-cooled heat sink of claim 1, wherein said waterway inlet and waterway outlet are located on a same side of said body.

9. The water-cooled radiator according to claim 1, wherein said water passage inlet and said water passage outlet are respectively located on both sides of said main body.

10. A motor controller for a new energy automobile, characterized by comprising the water-cooled heat sink according to any one of claims 1 to 9.