CN211607166U

CN211607166U - Heat radiator

Info

Publication number: CN211607166U
Application number: CN201922397186.XU
Authority: CN
Inventors: 罗兵; 徐永生; 张福增; 罗炜; 曾向君; 廖一帆; 肖微; 王婷婷; 陈少杰; 卢威
Original assignee: China Southern Power Grid Co Ltd; Research Institute of Southern Power Grid Co Ltd
Current assignee: CSG Electric Power Research Institute; China Southern Power Grid Co Ltd; Research Institute of Southern Power Grid Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-29
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to the technical field of heat dissipation, and discloses a heat radiator, which comprises a shell, a flow equalizing structure and a flow passage structure, wherein the shell is provided with an inlet and an outlet, a first accommodating cavity and a second accommodating cavity are arranged in the shell, the first accommodating cavity is communicated with the second accommodating cavity, the flow equalizing structure is arranged in the first accommodating cavity, the flow passage structure is arranged in the second accommodating cavity, the inlet is communicated with the flow equalizing structure, and the flow equalizing structure is communicated with the outlet through the flow passage structure; the runner structure includes a plurality of heat dissipation runners, the structure that flow equalizes includes 3 at least spoilers of interval arrangement in proper order, and adjacent two form the passway mouth that is used for supplying coolant to pass through between the spoiler, after coolant got into the casing by the import, shunt through each passway mouth to coolant can divide to each heat dissipation runner relatively evenly, thereby be favorable to the heat dissipation evenly.

Description

Heat radiator

Technical Field

The utility model relates to a heat dissipation technical field especially relates to a radiator.

Background

The radiator is a device for exchanging heat with other equipment, at present, the existing radiator is generally provided with a plurality of radiating channels, and cooling media exchange heat with other equipment when passing through the plurality of radiating channels, so that the heat of other equipment is dissipated. However, when the cooling medium enters the heat dissipation channels, the flow rate of the cooling medium entering each heat dissipation channel is different, for example, the cooling medium is concentrated in the middle flow channel, and the flow rates of the flow channels on the two sides are less, thereby causing the problem of uneven heat dissipation.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a purpose provides a radiator, it can make the coolant relatively evenly divide to each heat dissipation runner, avoids the inhomogeneous problem of current radiator heat dissipation.

In order to solve the technical problem, an embodiment of the present invention provides a heat sink, including a housing, a flow equalizing structure and a flow channel structure, wherein the housing is provided with an inlet and an outlet, a first accommodating cavity and a second accommodating cavity are arranged in the housing, the first accommodating cavity is communicated with the second accommodating cavity, the flow equalizing structure is arranged in the first accommodating cavity, the flow channel structure is arranged in the second accommodating cavity, the inlet is communicated with the flow equalizing structure, and the flow equalizing structure is communicated with the outlet through the flow channel structure;

the flow channel structure comprises a plurality of heat dissipation flow channels, the flow equalizing structure comprises at least 3 spoilers which are sequentially arranged at intervals, and a channel opening for a cooling medium to pass through is formed between every two adjacent spoilers.

Preferably, the inlet is disposed at the right end of the housing, the outlet is disposed at the left end of the housing, and the inlet and the outlet are disposed opposite to each other.

As a preferred scheme, the number of the flow equalizing structures is multiple, the multiple groups of flow equalizing structures are sequentially arranged at intervals along the left and right direction of the shell, and the spoilers of two adjacent groups of flow equalizing structures are distributed in a staggered manner.

Preferably, the cross-sectional area of the first accommodating cavity is gradually increased from the right end of the first accommodating cavity to the left end of the first accommodating cavity, and the number of the spoilers of each group of the flow equalizing structures is gradually increased from the right end of the first accommodating cavity to the left end of the first accommodating cavity.

Preferably, a fluid concentration cavity is arranged in the shell and is arranged between the flow channel structure and the outlet.

Preferably, the cross-sectional area of the fluid concentration chamber gradually decreases from the right end of the fluid concentration chamber to the left end of the fluid concentration chamber.

Preferably, the fluid concentration cavity is communicated with the second accommodating cavity, and the inner wall of the fluid concentration cavity is connected with the inner wall of the second accommodating cavity through a fillet.

Preferably, the flow channel structure includes a plurality of flow channel plates, and the heat dissipation flow channel is formed between two adjacent flow channel plates.

Preferably, the heat sink further includes a cooling medium, and the cooling medium is a phase change medium.

Preferably, the cooling medium is a fluorinated liquid.

The embodiment of the utility model provides a radiator, which comprises a housin, flow equalizing structure and runner structure, import and flow equalizing structure intercommunication, the flow equalizing structure passes through runner structure and export intercommunication, the runner structure includes a plurality of heat dissipation runners, the flow equalizing structure includes 3 at least spoiler of interval arrangement in proper order, form the passway that is used for supplying coolant to pass through between two adjacent spoilers, after coolant got into the casing by the import, shunt through each passway, so that coolant can relatively evenly divide to each heat dissipation runner, thereby be favorable to the heat dissipation evenly.

Drawings

Fig. 1 is a schematic structural diagram of a heat sink in an embodiment of the present invention;

fig. 2 is a cross-sectional view of a heat sink in an embodiment of the invention;

fig. 3 is a cross-sectional view of another angle of a heat sink in an embodiment of the invention;

wherein, 1, a shell; 11. an inlet; 12. an outlet; 13. a first accommodating chamber; 14. a second accommodating chamber; 15. a fluid concentration chamber; 2. a flow channel structure; 21. a runner plate; 3. a current sharing structure; 31. a spoiler; 4. and (4) rounding.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses an in the explanation, the description of upper and lower, left and right, preceding and back equal position and top and bottom is all injectd to fig. 3, and when the placing mode of radiator changed, the description of its corresponding position and top and bottom will also change according to the change of placing mode, the utility model discloses do not describe herein repeatedly.

With reference to fig. 1 to 3, the heat sink according to the preferred embodiment of the present invention includes a housing 1, a flow equalizing structure 3, and a flow channel structure 2, wherein the housing 1 is provided with an inlet 11 and an outlet 12, the housing 1 is provided with a first accommodating cavity 13 and a second accommodating cavity 14, the first accommodating cavity 13 is communicated with the second accommodating cavity 14, the flow equalizing structure 3 is disposed in the first accommodating cavity 13, the flow channel structure 2 is disposed in the second accommodating cavity 14, the inlet 11 is communicated with the flow equalizing structure 3, and the flow equalizing structure 3 is communicated with the outlet 12 through the flow channel structure 2;

the flow channel structure 2 comprises a plurality of heat dissipation flow channels, the flow equalizing structure 3 comprises at least 3 spoilers 31 which are sequentially arranged at intervals, and a channel opening for a cooling medium to pass through is formed between every two adjacent spoilers 31.

The embodiment of the utility model provides an in, the radiator includes casing 1, flow equalizing structure 3 and runner structure 2, import 11 and flow equalizing structure 3 intercommunication, flow equalizing structure 3 passes through runner structure 2 and export 12 intercommunication, runner structure 2 includes a plurality of heat dissipation runners, flow equalizing structure 3 includes 3 at least spoiler 31 of interval arrangement in proper order, form the passway that is used for supplying coolant to pass through between two adjacent spoilers 31, after coolant got into casing 1 by import 11, shunt through each passway, so that coolant can divide to each heat dissipation runner relatively evenly, thereby it is even to be favorable to the heat dissipation.

In practical application, the heat radiator can be applied to high-power electronic equipment such as a converter valve, and the heat radiator can be attached to equipment needing heat radiation, such as wall-mounted contact. In addition, the heat dissipation plate structure of high-power electronic equipment such as converter valve adopts cavity structure usually, and its generally is imported and exported 12 quantity through increasing and improves the cross-section utilization ratio of heating panel, nevertheless import and export 12 increase of quantity will arouse the increase of heating panel and external connection quantity, on extensive device such as converter valve connects in series and in parallel equipment, the huge joint of quantity easily causes troubles such as weeping, and the embodiment of the utility model provides a radiator is in 1 internal integration structure 3 that flow equalizes of casing can play the effect of flow equalizing and improvement cross-section utilization ratio.

As shown in fig. 1 to 3, the flow channel structure 2 may include a plurality of flow channel plates 21, and the heat dissipation flow channel is formed between two adjacent flow channel plates 21. Of course, the heat dissipation channel may also be formed by other manners, which will not be further described herein.

Referring to fig. 1 to 3, the inlet 11 is disposed on the right end of the housing 1, the outlet 12 is disposed on the left end of the housing 1, and the inlet 11 and the outlet 12 are disposed opposite to each other. The number of the current-equalizing structures 3 is multiple, the multiple groups of the current-equalizing structures 3 are sequentially arranged at intervals along the left and right direction of the shell 1, and the spoilers 31 of the two adjacent groups of the current-equalizing structures 3 are distributed in a staggered manner. Referring to fig. 3, the spoilers 31 of two adjacent sets of the flow equalizing structures 3 are distributed in a staggered manner, rather than in an aligned manner, so that the channel openings of two adjacent sets of the flow equalizing structures 3 are not arranged in an opposite manner, so that the cooling medium can enter the heat dissipation channels more uniformly after being equally distributed for multiple times, and the heat dissipation is more uniform. In the middle of concrete implementation, the group number of the current equalizing structure 3 can be set according to actual requirements, the more the group number of the current equalizing structure 3 is, the better the current equalizing effect is, but the cost and the flow resistance are considered to be increased, and the group number of the current equalizing structure 3 can meet the actual requirements.

In an optional embodiment, the cross-sectional area of the first accommodating cavity 13 gradually increases from the right end of the first accommodating cavity 13 to the left end of the first accommodating cavity 13, and the number of the spoilers 31 of each group of the flow equalizing structures 3 gradually increases from the right end of the first accommodating cavity 13 to the left end of the first accommodating cavity 13, so that the cooling medium is gradually distributed into each heat dissipation flow channel after entering from the inlet 11, and the flow equalizing effect is better. Preferably, the first accommodating cavity 13 is of a V-shaped structure, and the second accommodating cavity 14 is of a rectangular structure.

Referring to fig. 2 and 3, a fluid concentration chamber 15 is provided in the housing 1, and the fluid concentration chamber 15 is provided between the flow channel structure 2 and the outlet 12. By arranging the fluid concentration chamber 15 between the flow channel structure 2 and the outlet 12, the cooling medium can be concentrated after passing through the flow channel structure 2, thereby improving the cross-sectional utilization of the radiator.

In a specific implementation, the heat sink further includes a cooling medium, in this embodiment, the cooling medium is a phase change medium, and preferably, the cooling medium is a fluorinated liquid. The fluoridized liquid is used as a phase change medium and has the characteristics of low boiling point and large phase change latent heat. In practical application, a cooling medium enters the radiator from the inlet 11, and after passing through the flow equalizing structure 3, the cooling medium can uniformly enter each heat dissipation flow channel, the cooling medium absorbs heat in the heat dissipation flow channels, can be boiled into gas to take away the heat, and the gaseous cooling medium is concentrated by the fluid concentration cavity 15 and then flows out through the outlet 12. Through the flowing direction, the problem of uneven heat dissipation distribution caused by uneven flow can be better solved, and the section utilization rate of the radiator is increased.

In addition, in the prior art, the existing water-cooling heat dissipation plate is generally an "S" type or spiral heat dissipation plate, and if the heat dissipation plate is used for phase change cooling, the inside of the heat dissipation plate is evaporated to dryness due to the difficulty that bubbles are not easy to overflow, so that heat dissipation cannot be performed. The fluid concentration chamber 15 of this embodiment improves the slope of the outlet 12 of the heat sink and increases the angle so that air bubbles are less likely to escape as a result of accumulating in an area.

Further, the cross-sectional area of the fluid concentration chamber 15 of the present embodiment gradually decreases from the right end of the fluid concentration chamber 15 to the left end of the fluid concentration chamber 15. Preferably, the fluid concentration chamber 15 has a V-shaped configuration. The fluid concentration chamber 15 further improves the slope of the outlet 12 of the radiator, increasing the angle so that air bubbles are less likely to escape as a result of accumulating in an area that is difficult to escape.

In addition, if the bubbles gather at a right angle, a drying area is easily generated, and the medium has a large flow resistance and is not easy to flow away from the right angle due to the right angle in the flowing process. In order to solve this problem, the fluid concentration chamber 15 of the present embodiment communicates with the second accommodating chamber 14, and an inner wall of the fluid concentration chamber 15 is connected to an inner wall of the second accommodating chamber 14 by a rounded corner. The inner wall of the fluid concentration cavity 15 and the inner wall of the second accommodating cavity 14 are in round angle transition, so that the joint of the two is smooth, the flow resistance is smaller, the cooling medium can flow away more easily, and the heat dissipation effect is further ensured.

To sum up, the embodiment of the utility model provides a radiator, which comprises a housin 1, flow equalizing structure 3 and runner structure 2, import 11 and flow equalizing structure 3 intercommunication, flow equalizing structure 3 passes through runner structure 2 and export 12 intercommunication, runner structure 2 includes a plurality of heat dissipation runners, flow equalizing structure 3 includes 3 at least spoiler 31 of interval arrangement in proper order, form the passway that is used for supplying coolant to pass through between two adjacent spoilers 31, after coolant got into casing 1 by import 11, shunt through each passway, so that coolant can relatively evenly divide to each heat dissipation runner, thereby it is even to be favorable to the heat dissipation.

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 replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A radiator is characterized by comprising a shell, a flow equalizing structure and a flow passage structure, wherein an inlet and an outlet are arranged on the shell, a first accommodating cavity and a second accommodating cavity are arranged in the shell, the first accommodating cavity is communicated with the second accommodating cavity, the flow equalizing structure is arranged in the first accommodating cavity, the flow passage structure is arranged in the second accommodating cavity, the inlet is communicated with the flow equalizing structure, and the flow equalizing structure is communicated with the outlet through the flow passage structure;

2. The heat sink of claim 1, wherein the inlet is disposed on a right end of the housing and the outlet is disposed on a left end of the housing, the inlet and the outlet being disposed opposite one another.

3. The heat sink as claimed in claim 2, wherein the number of the flow equalizing structures is multiple, the multiple sets of the flow equalizing structures are sequentially arranged at intervals along the left-right direction of the housing, and the spoilers of two adjacent sets of the flow equalizing structures are distributed in a staggered manner.

4. The heat sink as claimed in claim 2, wherein the cross-sectional area of the first receiving cavity increases from the right end of the first receiving cavity to the left end of the first receiving cavity, and the number of the spoilers of each set of the flow equalizing structures increases from the right end of the first receiving cavity to the left end of the first receiving cavity.

5. The heat sink of claim 2, wherein a fluid focus chamber is provided in the housing, the fluid focus chamber being provided between the flow path structure and the outlet.

6. The heat sink of claim 5, wherein the cross-sectional area of the fluid focus chamber decreases from the right end of the fluid focus chamber to the left end of the fluid focus chamber.

7. The heat sink of claim 5, wherein the fluid concentration chamber is in communication with the second receiving chamber, and wherein an inner wall of the fluid concentration chamber is connected to an inner wall of the second receiving chamber by a fillet.

8. The heat sink of any one of claims 1-4, wherein the flow channel structure comprises a plurality of flow channel plates, and the heat dissipation flow channel is formed between two adjacent flow channel plates.

9. The heat sink of any one of claims 1-4, wherein the heat sink further comprises a cooling medium, the cooling medium being a phase change medium.

10. The heat sink of claim 9, wherein the cooling medium is a fluorinated liquid.