Round VC water-cooling radiator

Abstract

The utility model discloses a round VC water cooling radiator, including vapor chamber body and heat sink body, vapor chamber body includes upper cavity substrate, lower shell and first capillary structure, the lower surface of upper cavity substrate and lower shell fixed connection form cavity, and the lower surface of upper cavity substrate and lower shell fixed connection form cavity. The upper surface of the lower cavity substrate is provided with a plurality of flow dividing strips which are uniformly and circumferentially distributed, the flow dividing strips and the lower cavity substrate form a flow channel, the flow channel is communicated with the cavity, the heat dissipation plate body comprises a plurality of first heat dissipation fins, the first heat dissipation fins are uniformly and circumferentially distributed on the upper surface of the upper cavity substrate, and the flow channel is communicated with the cavity. According to the circular VC water-cooling radiator, the uniform-temperature plate body and the radiating plate body are fixedly connected to the motor shaft of the driving motor, so that the uniform-temperature plate body and the radiating plate body rotate together with the driving motor by taking the axis of the motor as the center, heat is diffused out through liquid-state and gas-state phase change of a working medium, and radiating is more uniform and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of drive motor radiators, in particular to a circular VC water-cooled radiator. Background Art

[0002] Vapor chamber (VC) is a common fast heat conduction and heat dissipation mechanism. Its working principle is that in a closed plate-shaped cavity, the working medium circulates under evaporation and condensation conditions to achieve rapid heat conduction and heat diffusion, thereby achieving the characteristics of rapid temperature uniformity.

[0003] As we all know, the torque of the drive motor consumes energy during long-term high-speed operation, and the motor itself will also generate a certain amount of heat, which is prone to heat dissipation problems. If the heat cannot be dissipated in time, it will cause problems such as motor overheating, performance degradation, and shortened life. Existing motor heat dissipation mainly relies on cooling fans, and the heat dissipation power is increased by adding heat sinks and cooling fans on the surface of the motor. With the development of technology, the power consumption of motors is getting higher and higher, and the existing heat dissipation mode can no longer meet the heat dissipation needs of high-power motors. Summary of the invention

[0004] In view of the above-mentioned problems, the purpose of the utility model is to provide a circular VC water-cooled radiator, by fixing the temperature equalizing plate body and the heat sink body on the drive motor shaft, so that the radiator and the drive motor shaft rotate together, and the heat is transferred to the heat sink body through the liquid and gas phase change of the working medium, and finally the heat is diffused through the heat sink body.

[0005] To achieve the above purpose, the utility model provides a circular VC water-cooled radiator, including a temperature equalizing plate body and a heat dissipation plate body.

[0006] The temperature equalizing plate body comprises an upper cavity substrate, a lower shell and a first capillary structure, the lower shell comprises an inner ring side plate, a lower cavity substrate and an outer ring side plate which are fixedly connected, the inner ring side plate, the lower cavity substrate and the outer ring side plate are fixedly connected to form a shell with an opening facing upward, the upper cavity substrate and the lower cavity substrate are arranged in a circular ring shape, and a circular through hole is arranged at the center, the lower surface of the upper cavity substrate and the lower shell are fixedly connected to form a cavity, the first capillary structure is arranged on the inner wall of the cavity, and a working medium is arranged in the cavity,

[0007] A plurality of evenly distributed circumferential diverter strips are provided on the upper surface of the lower cavity substrate, and the diverter strips and the lower cavity substrate form a flow channel, and the flow channel communicates with the cavity.

[0008] The heat sink body includes a plurality of first heat sinks, and the plurality of first heat sinks are evenly distributed on the upper surface of the upper cavity substrate.

[0009] Preferably, the plurality of diverter strips are arranged to be distributed counterclockwise, and the distance between the diverter strip and the outer ring side plate in the radial direction is a first distance, and the first distance is 0.2-1 mm.

[0010] Preferably, the distance between the diverter strip and the inner ring side plate in the radial direction is a second distance, and the second distance is greater than the first distance.

[0011] Preferably, the diverter strip is provided with a first guide surface and a second guide surface, the first guide surface and the second guide surface are both configured as arc surfaces, and the first guide surface and the second guide surface are parallel to each other.

[0012] Preferably, the temperature homogenizing plate body further includes a second capillary structure, wherein the second capillary structure is located on an outer side surface of the diverter strip, and the second capillary structure is connected to the first capillary structure.

[0013] Preferably, the temperature homogenizing plate body further includes a third capillary structure, the third capillary structure is configured as a micro-groove capillary structure, and the third capillary structure is located on the flow channel.

[0014] Preferably, the pressure in the cavity is less than 0.06 atmospheres.

[0015] Preferably, the temperature homogenizing plate body further includes a plurality of connection posts, wherein the connection posts are fixedly connected between the upper cavity substrate and the lower cavity substrate and are located inside the edge of the lower cavity substrate.

[0016] Preferably, the heat sink body also includes a plurality of second heat sinks, which are evenly distributed around the circumference, spaced apart from the first heat sinks, and have a height lower than that of the first heat sinks, and a distance from the second heat sink to the center line of the circular hole is greater than a distance from the first heat sink to the center line of the circular hole.

[0017] Preferably, the working medium is one of water, brine, ethylene glycol or acetone.

[0018] The beneficial effect of the utility model is that the circular VC water-cooled radiator provided by the utility model, by fixedly connecting the temperature equalizing plate body and the heat dissipating plate body to the motor shaft of the driving motor, makes it rotate together with the driving motor with the motor axis as the center, and diffuses the heat through the liquid and gas phase change of the working medium, so that the heat dissipation is more uniform and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings illustrate exemplary embodiments of the present invention and are used to explain the principles of the present invention together with the description. These drawings are included to provide a further understanding of the present invention, and the drawings are included in and constitute a part of this specification.

[0020] Figure 1 It is a schematic diagram of the structural explosion of the circular VC water-cooling radiator in Example 1;

[0021] Figure 2 Schematic diagram of the internal structure of the circular VC water-cooled radiator at one diameter in Example 1. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant contents, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention are shown in the accompanying drawings.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] Example: See Figure 1 to Figure 2 ,

[0025] A circular VC water-cooled radiator for a drive motor comprises a temperature equalizing plate body and a heat dissipation plate body.

[0026] The temperature equalizing plate body comprises an upper cavity substrate 1, a lower shell and a first capillary structure 31. The lower shell comprises an inner ring side plate 21, a lower cavity substrate 22 and an outer ring side plate 23 which are fixedly connected. The inner ring side plate 21, the lower cavity substrate 22 and the outer ring side plate 23 are fixedly connected to form a lower shell with an opening facing upward. The upper cavity substrate 1 and the lower cavity substrate 22 are arranged in a circular ring shape and a circular through hole 12 is provided at the center. The lower surface of the upper cavity substrate 1 and the lower shell are fixedly connected to form a cavity 13. The first capillary structure 31 is provided on the inner wall of the cavity 13. A working medium is provided in the cavity 13.

[0027] A plurality of evenly distributed circumferentially diverter strips 4 are provided on the upper surface of the lower cavity substrate 22. The diverter strips 4 and the lower cavity substrate 22 form a flow channel 5, which is in communication with the cavity 13. In this embodiment, the height of the diverter strips 4 is the distance between the upper cavity substrate 1 and the lower cavity substrate 22 (i.e., the height of the cavity 13). The diverter strips 4 are located between the upper cavity substrate 1 and the lower cavity substrate 22. Of course, according to actual needs, the height of the diverter strips 4 can also be less than the height of the cavity 13, and only fixed on the lower cavity substrate 22. The flow channel 5 is in communication with the cavity 13. During the reflux process, the liquid working medium will be evenly distributed on the flow channel 5 under the action of centrifugal force, so that the heat dissipation is more uniform.

[0028] The heat sink body includes a plurality of first heat sinks 51 , and the plurality of first heat sinks 51 are evenly distributed on the upper surface of the upper cavity substrate 1 .

[0029] Specifically in this embodiment, the circular through hole 12 is fixedly connected to the rotating shaft of the driving motor. When the driving motor is working, it drives the radiator to rotate with the motor shaft as the axis. In other words, the radiator rotates with the central axis of the through hole 12 as the axis. In the non-working (heat dissipation) state, due to the water absorption of the capillary structure, the working medium is a liquid medium, which is adsorbed in the first capillary structure 31. The lower surface of the lower cavity substrate 22 contacts the driving motor to dissipate heat for the driving motor. The cavity 13 is in a vacuum state. Theoretically, the closer the cavity 13 is to a vacuum, the better the heat dissipation power of the radiator. Due to technical limitations, at this stage, it can only be evacuated as much as possible, and it is impossible to achieve an absolute vacuum state. When the pressure in the cavity 13 is less than 0.06 atmospheres, it is considered to be in a vacuum state, which satisfies the temperature change of the phase change of the working medium in the cavity 13. During the operation of the motor, High power consumption generates high heat, which makes the motor temperature higher. The heat of the motor is transferred to the lower cavity substrate 22. As the motor rotates, the radiator concentrates the liquid working medium along the diverter strip 4 toward the outer ring side plate 23. The extremely low temperature causes the liquid working medium to absorb heat and change into a gaseous working medium. The gaseous working medium evaporates in the cavity 13 and flows toward the upper cavity substrate 1, transferring the heat away. The heat is then diffused away through the first heat sink 51. The high-temperature gaseous working medium encounters the upper cavity substrate 1 with a lower temperature, changes into a liquid working medium, and is adsorbed in the first capillary structure 31 again. During the reflux process, the liquid working medium is evenly distributed on the flow channel 5 under the action of centrifugal force, making the heat dissipation more uniform. The liquid working medium returns to the outer ring side plate 23 of the lower cavity substrate 22 along the rotating tangent direction again, and circulates back and forth, ultimately achieving the diffusion of the heat from the motor.

[0030] In order to quickly dissipate heat for the motor, the first capillary structure 31 can quickly pull the condensed liquid working medium back to the bottom of the cavity 13 (in contact with the lower cavity substrate 22 and the motor), thereby achieving rapid heat dissipation and improving the heat dissipation power of the temperature equalizing plate. When the gaseous working medium encounters the upper cavity substrate 1 with a lower temperature, the condensed phase turns into liquid working medium, and the liquid working medium returns to the first capillary structure 31 on the upper cavity substrate 1, and then flows downward to the first capillary structure 31 of the lower cavity substrate 22, thereby achieving rapid heat dissipation for the motor.

[0031] Multiple diverter strips 4 are arranged to be distributed counterclockwise, and the distance between the diverter strips 4 and the outer ring side plate 23 in the radial direction is a first distance, and the first distance is 0.2-1mm. A certain distance is set between the diverter strips 4 and the outer ring side plate 23 in the radial direction to ensure that the liquid working medium can be evenly distributed. If the first distance is too large, the liquid working medium will be too concentrated, and if it is too small, the distribution will be uneven. The even distribution of the liquid working medium can better ensure more uniform heat dissipation, and the diverter strips 4 are arranged to be distributed counterclockwise. The liquid working medium can be effectively dispersed and then return to the outer edge of the cavity 13 along the tangent, working back and forth in this way to improve the heat dissipation power of the radiator. In this embodiment, the first capillary structure 31 covers the lower surface of the upper cavity substrate 1, the upper surface of the lower cavity substrate 22, and the outer surface of the diverter strip 4, and forms a complete reflux to facilitate the reflux of the liquid working medium.

[0032] The distance between the diverter strip 4 and the inner ring side plate 21 in the radial direction is the second distance, which is greater than the first distance. The existence of the second distance and the first distance enables the closed cavity 13 formed by the upper cavity substrate 1, the inner ring side plate 21, the lower cavity substrate 22, and the outer ring side plate 23 to be divided into multiple interconnected areas by multiple diverter strips 4 evenly distributed circumferentially, thereby ensuring that the working medium can flow in the cavity 13 and can be evenly distributed in the cavity 13 or on the flow channel 5, effectively avoiding excessive concentration or dispersion of the working medium, thereby ensuring the continuity and uniformity of heat dissipation.

[0033] The diverter strip 4 is provided with a first guide surface 41 and a second guide surface 42. The first guide surface 41 and the second guide surface 42 are both arranged as arc surfaces. The first guide surface 41 and the second guide surface 42 are parallel to each other. Of course, according to actual needs, the first guide surface 41 and the second guide surface 42 can also be arranged at a certain angle and not be parallel to each other. The arc-shaped guide surface can ensure the smoothness of the working medium, can reduce the influence of the diverter strip 4 on the working medium, and is conducive to improving the noise reduction performance of the radiator.

[0034] The temperature equalizing plate body also includes a second capillary structure, which is located on the outer side of the diverter strip 4. The second capillary structure is connected to the first capillary structure 31. The second capillary structure on the diverter strip 4 can increase the flow area of ​​the liquid working medium and increase the reflux amount of the liquid working medium, thereby improving the heat dissipation power of the radiator.

[0035] The temperature equalizing plate body also includes a third capillary structure 33, which is configured as a micro-groove capillary structure. The third capillary structure 33 is located on the flow channel 5. The micro-groove capillary structure can improve the fluidity and flow speed of the liquid working medium, so that the liquid working medium can flow back to the first capillary structure 31 on the lower cavity substrate 22 and the outer ring side plate 23 faster.

[0036] The temperature equalizing plate body also includes a plurality of connecting columns 6, which are fixedly connected between the upper cavity substrate 1 and the lower cavity substrate 22, and are located on the inner side of the edge of the lower cavity substrate 22. When the gaseous working medium flows upward toward the axis, the internal pressure of the cavity 13 increases, and the connecting columns 6 can effectively disperse the pressure impact of the upper cavity substrate 1 and the lower cavity substrate 22, ensuring that the upper cavity substrate 1 and the lower cavity substrate 22 will not break, and ensuring the sealing of the cavity 13 without rupture.

[0037] The heat sink body also includes a plurality of second heat sinks 52, which are evenly distributed around the circumference. The second heat sinks 52 are spaced apart from the first heat sinks 51, and the height of the second heat sinks 52 is lower than the height of the first heat sinks 51. The distance between the second heat sink 52 and the center line of the circular hole is greater than the distance between the first heat sink 51 and the center line of the circular hole. Providing two heat sinks with different heights can increase the heat dissipation area and diffuse the heat more evenly.

[0038] The working medium is one of water, brine, ethylene glycol or acetone. In this embodiment, brine is used.

[0039] The circular VC water-cooled radiator provided by the utility model is used to dissipate heat for a driving motor. It fixes a temperature equalizing plate body and a heat dissipating plate body on the motor shaft of the driving motor so that the heat dissipating plate and the driving motor rotate around the motor axis, and the heat is diffused through the liquid and gaseous phase change of the working medium. Specifically, the heat generated by the driving motor causes the liquid working medium to change into a gaseous working medium. As the gaseous working medium flows, the heat of the driving motor is conducted to the upper cavity substrate, and then the heat is diffused through the heat dissipating plate body on the upper cavity substrate. At the same time, the centrifugal force generated during rotation is used to evacuate the liquid working medium to the lower cavity substrate and the outer ring side plate at a high speed and evenly. Compared with ordinary radiators, the overall heat dissipation power of the radiator is greatly improved, and at the same time, the heat dissipation is more even and efficient.

[0040] To sum up, the circular VC water-cooled radiator provided by the utility model, by fixedly connecting the temperature equalizing plate body and the heat dissipating plate body to the motor shaft of the driving motor, makes it rotate together with the driving motor around the motor axis, and diffuses the heat through the liquid and gas phase change of the working medium, so that the heat dissipation is more uniform and efficient.

[0041] Those skilled in the art should understand that the above embodiments are only for the purpose of clearly illustrating the present invention, and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications may be made based on the above utility model, and these changes or modifications are still within the scope of the present utility model.

Claims

1. A circular VC water-cooling radiator, characterized in that: Including the temperature plate body and the heat sink body, The temperature equalizing plate body comprises an upper cavity substrate, a lower shell and a first capillary structure, the lower shell comprises an inner ring side plate, a lower cavity substrate and an outer ring side plate which are fixedly connected, the inner ring side plate, the lower cavity substrate and the outer ring side plate are fixedly connected to form a shell with an opening facing upward, the upper cavity substrate and the lower cavity substrate are arranged in a circular ring shape, and a circular through hole is arranged at the center, the lower surface of the upper cavity substrate and the lower shell are fixedly connected to form a cavity, the first capillary structure is arranged on the inner wall of the cavity, and a working medium is arranged in the cavity, A plurality of evenly distributed circumferential diverter strips are provided on the upper surface of the lower cavity substrate, and the diverter strips and the lower cavity substrate form a flow channel, and the flow channel communicates with the cavity. The heat sink body includes a plurality of first heat sinks, and the plurality of first heat sinks are evenly distributed on the upper surface of the upper cavity substrate.

2. The circular VC water-cooling radiator according to claim 1 is characterized in that: The plurality of diverter strips are arranged to be distributed counterclockwise, and the distance between the diverter strip and the outer ring side plate in the radial direction is a first distance, and the first distance is 0.2-1 mm.

3. The circular VC water-cooling radiator according to claim 2 is characterized in that: The distance between the diverter strip and the inner ring side plate in the radial direction is a second distance, and the second distance is greater than the first distance.

4. The circular VC water-cooling radiator according to claim 1 is characterized in that: The diverter strip is provided with a first guide surface and a second guide surface, the first guide surface and the second guide surface are both configured as arc surfaces, and the first guide surface and the second guide surface are parallel to each other.

5. The circular VC water-cooling radiator according to claim 1 is characterized in that: The temperature homogenizing plate body further includes a second capillary structure, which is located on the outer side of the diverter strip and is connected to the first capillary structure.

6. The circular VC water-cooling radiator according to claim 1 is characterized in that: The temperature homogenizing plate body further includes a third capillary structure, which is configured as a micro-groove capillary structure and is located on the flow channel.

7. The circular VC water-cooling radiator according to claim 1 is characterized in that: The pressure in the cavity is less than 0.06 atmospheres.

8. The circular VC water-cooling radiator according to claim 1, characterized in that: The temperature homogenizing plate body further includes a plurality of connection posts, wherein the connection posts are fixedly connected between the upper cavity substrate and the lower cavity substrate and are located inside the edge of the lower cavity substrate.

9. The circular VC water-cooling radiator according to claim 1, characterized in that: The heat sink body also includes a plurality of second heat sinks, which are evenly distributed around the circumference, spaced apart from the first heat sinks, and have a height lower than that of the first heat sinks. The distance between the second heat sink and the center line of the circular hole is greater than the distance between the first heat sink and the center line of the circular hole.

10. The circular VC water-cooling radiator according to claim 1, characterized in that: The working medium is one of water, salt water, ethylene glycol or acetone.

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