A radiator

Abstract

The present invention relates to the field of heat dissipation technology, and discloses a radiator, including a shell, a flow balancing structure and a flow channel structure, wherein the shell is provided with an inlet and an outlet, and a first accommodating chamber and a second accommodating chamber are provided in the shell, the first accommodating chamber is communicated with the second accommodating chamber, the flow balancing structure is arranged in the first accommodating chamber, and the flow channel structure is arranged in the second accommodating chamber, the inlet is communicated with the flow balancing structure, and the flow balancing structure is communicated with the outlet through the flow channel structure; the flow channel structure includes a plurality of heat dissipation channels, the flow balancing structure includes at least 3 spoilers arranged in sequence at intervals, and a channel opening for a cooling medium to pass through is formed between two adjacent spoilers, and when the cooling medium enters the shell from the inlet, it is diverted through each channel opening so that the cooling medium can be more evenly distributed to each heat dissipation channel, thereby facilitating uniform heat dissipation.

Description

Technical Field

[0001] The invention relates to the technical field of heat dissipation, and in particular to a radiator. Background Art

[0002] A radiator is a device that exchanges heat with other devices. Currently, existing radiators are generally equipped with multiple heat dissipation channels. When the cooling medium passes through the multiple heat dissipation channels, it exchanges heat with other devices, thereby achieving heat dissipation for other devices. However, when the cooling medium enters the heat dissipation channels, the flow rate of the cooling medium entering each heat dissipation channel will be different. For example, the cooling medium will be concentrated in the middle flow channel, while the flow rate of the flow channels on both sides will be less, thus causing the problem of uneven heat dissipation. Summary of the invention

[0003] The purpose of the embodiment of the present invention is to provide a radiator, which can distribute the cooling medium to each heat dissipation channel more evenly, thereby avoiding the problem of uneven heat dissipation of the existing radiator.

[0004] In order to solve the above technical problems, an embodiment of the present invention provides a heat sink, including a shell, a flow balancing structure and a flow channel structure, wherein the shell is provided with an inlet and an outlet, a first accommodating cavity and a second accommodating cavity are provided in the shell, the first accommodating cavity is communicated with the second accommodating cavity, the flow balancing structure is provided in the first accommodating cavity, the flow channel structure is provided in the second accommodating cavity, the inlet is communicated with the flow balancing structure, and the flow balancing structure is communicated with the outlet through the flow channel structure;

[0005] The flow channel structure includes a plurality of heat dissipation flow channels, and the flow balancing structure includes at least three spoilers arranged in sequence and at intervals, and a channel opening for cooling medium to pass through is formed between two adjacent spoilers.

[0006] As a preferred solution, the inlet is arranged on the right end of the shell, and the outlet is arranged on the left end of the shell, and the inlet and the outlet are arranged opposite to each other.

[0007] As a preferred solution, there are multiple groups of the flow balancing structures, which are arranged in sequence along the left-right direction of the shell at intervals, and the spoilers of two adjacent groups of the flow balancing structures are staggered.

[0008] As a preferred embodiment, the cross-sectional area of ​​the first accommodating cavity gradually increases from the right end to the left end of the first accommodating cavity, and the number of spoilers of each group of the flow balancing structure gradually increases from the right end to the left end of the first accommodating cavity.

[0009] As a preferred solution, a fluid concentration chamber is provided in the shell, and the fluid concentration chamber is provided between the flow channel structure and the outlet.

[0010] As a preferred solution, 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.

[0011] As a preferred solution, 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 rounded corner.

[0012] As a preferred solution, 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.

[0013] As a preferred solution, the radiator further includes a cooling medium, and the cooling medium is a phase change medium.

[0014] As a preferred solution, the cooling medium is a fluorinated liquid.

[0015] An embodiment of the present invention provides a radiator, including a shell, a flow balancing structure and a flow channel structure, wherein an inlet is connected to the flow balancing structure, and the flow balancing structure is connected to an outlet through the flow channel structure, and the flow channel structure includes a plurality of heat dissipation channels, and the flow balancing structure includes at least 3 spoilers arranged in sequence and spaced apart, and a channel opening for a cooling medium to pass through is formed between two adjacent spoilers, and when the cooling medium enters the shell from the inlet, it is diverted through each channel opening so that the cooling medium can be distributed to each heat dissipation channel more evenly, thereby facilitating uniform heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a radiator in an embodiment of the present invention;

[0017] Figure 2 is a cross-sectional view of a heat sink in an embodiment of the present invention;

[0018] Figure 3 is a cross-sectional view of the heat sink in the embodiment of the present invention at another angle;

[0019] Among them, 1. Shell; 11. Inlet; 12. Outlet; 13. First accommodating chamber; 14. Second accommodating chamber; 15. Fluid concentration chamber; 2. Flow channel structure; 21. Flow channel plate; 3. Flow equalization structure; 31. Spoiler; 4. Rounded corners. DETAILED DESCRIPTION

[0020] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] In the description of the present invention, the directions such as up, down, left, right, front and back, and the description of top and bottom are all for Figure 3It is defined that when the placement of the radiator changes, its corresponding orientation and the description of the top and bottom will also change according to the change of the placement, and the present invention will not be elaborated here.

[0022] Combination Figures 1 to 3 As shown, a heat sink according to a preferred embodiment of the present invention comprises a shell 1, a flow balancing structure 3 and a flow channel structure 2, wherein the shell 1 is provided with an inlet 11 and an outlet 12, and the shell 1 is provided with a first accommodating cavity 13 and a second accommodating cavity 14, wherein the first accommodating cavity 13 is communicated with the second accommodating cavity 14, the flow balancing structure 3 is arranged in the first accommodating cavity 13, the flow channel structure 2 is arranged in the second accommodating cavity 14, the inlet 11 is communicated with the flow balancing structure 3, and the flow balancing structure 3 is communicated with the outlet 12 through the flow channel structure 2;

[0023] The flow channel structure 2 includes a plurality of heat dissipation flow channels, and the flow balancing structure 3 includes at least three spoilers 31 arranged in sequence and at intervals, and a channel opening for cooling medium to pass through is formed between two adjacent spoilers 31 .

[0024] In an embodiment of the present invention, the radiator includes a shell 1, a flow balancing structure 3 and a flow channel structure 2, the inlet 11 is connected to the flow balancing structure 3, the flow balancing structure 3 is connected to the outlet 12 through the flow channel structure 2, the flow channel structure 2 includes a plurality of heat dissipation channels, the flow balancing structure 3 includes at least 3 spoilers 31 arranged in sequence, and a channel opening for the cooling medium to pass through is formed between two adjacent spoilers 31. When the cooling medium enters the shell 1 from the inlet 11, it is diverted through each channel opening so that the cooling medium can be distributed to each heat dissipation channel more evenly, thereby facilitating uniform heat dissipation.

[0025] In practical applications, the radiator can be applied to high-power power electronic devices such as converter valves, and the radiator can be placed close to the device that needs heat dissipation, such as in wall-mounted contact. In addition, the heat sink structure of high-power power electronic devices such as converter valves usually adopts a cavity structure, which generally improves the cross-sectional utilization of the heat sink by increasing the number of inlets and outlets 12. However, the increase in the number of inlets and outlets 12 will cause an increase in the number of connectors between the heat sink and the outside. On large-scale devices such as converter valves that are connected in series and parallel, a large number of connectors are prone to leakage and other faults. The radiator provided in the embodiment of the present invention integrates a flow-sharing structure 3 inside the shell 1, which can play a role in flow balancing and improving cross-sectional utilization.

[0026] Combination Figures 1 to 3 As shown, 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 flow channel may also be formed in other ways, which will not be described in detail here.

[0027] Combination Figures 1 to 3 As shown, the inlet 11 is arranged on the right end of the shell 1, and the outlet 12 is arranged on the left end of the shell 1, and the inlet 11 and the outlet 12 are arranged opposite to each other. There are multiple groups of the flow balancing structures 3, and the multiple groups of the flow balancing structures 3 are arranged in sequence along the left and right directions of the shell 1, and the spoilers 31 of two adjacent groups of the flow balancing structures 3 are staggered. Figure 3 As shown, the spoilers 31 of two adjacent groups of the flow balancing structures 3 are staggered, rather than aligned, so the channel openings of the two adjacent groups of the flow balancing structures 3 are not arranged directly opposite each other, so that the cooling medium can enter each heat dissipation channel more evenly after multiple equalizations, and the heat dissipation is more uniform. In the specific implementation, the number of groups of the flow balancing structures 3 can be set according to actual requirements. The more groups of the flow balancing structures 3, the better the flow balancing effect. However, considering the cost and the increase in flow resistance, the number of groups of the flow balancing structures 3 can meet the actual needs.

[0028] In an optional embodiment, the cross-sectional area of ​​the first accommodating chamber 13 gradually increases from the right end of the first accommodating chamber 13 to the left end of the first accommodating chamber 13, and the number of spoilers 31 of each group of the flow balancing structure 3 gradually increases from the right end of the first accommodating chamber 13 to the left end of the first accommodating chamber 13, so that the cooling medium gradually flows into each heat dissipation channel after entering from the inlet 11, and the flow balancing effect is better. Preferably, the first accommodating chamber 13 is a V-shaped structure, and the second accommodating chamber 14 is a rectangular structure.

[0029] Combination Figure 2 and Figure 3 As shown, 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 providing 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.

[0030] In the specific implementation, the radiator also includes a cooling medium. In the present embodiment, the cooling medium is a phase change medium. Preferably, the cooling medium is a fluorinated liquid. As a phase change medium, the fluorinated liquid has the characteristics of low boiling point and large latent heat of phase change. In practical applications, the cooling medium enters the radiator from the inlet 11. After the cooling medium passes through the flow-equalizing structure 3, it can enter each heat dissipation channel relatively evenly. The cooling medium absorbs heat in the heat dissipation channel and boils into gas to take away the heat. The gaseous cooling medium is concentrated by the fluid concentration cavity 15 and then flows out through the outlet 12. Through such a flow direction, the problem of uneven heat dissipation distribution caused by uneven flow can be better solved, and the cross-sectional utilization rate of the radiator is also increased.

[0031] In addition, in the prior art, the existing water-cooled heat sink is usually an "S"-shaped or spiral heat sink. If used for phase change cooling, it will be difficult for bubbles to overflow, resulting in evaporation inside the heat sink, and heat cannot be dissipated. The fluid concentration cavity 15 of this embodiment improves the slope of the outlet 12 of the radiator and increases the angle, so that bubbles are not easily difficult to escape due to accumulation in one area.

[0032] Further, the cross-sectional area of ​​the fluid concentration chamber 15 of this 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 is a V-shaped structure. The fluid concentration chamber 15 further improves the slope of the outlet 12 of the radiator and increases the angle, so that bubbles are not easily difficult to escape due to accumulation in one area.

[0033] In addition, if bubbles gather at a right angle, an evaporation area is likely to be generated. During the flow of the medium, due to the existence of the right angle, the flow resistance is relatively large, and it is not easy to flow away from the right angle. In order to solve this problem, the fluid concentration chamber 15 of this embodiment is connected to the second accommodating chamber 14, and the inner wall of the fluid concentration chamber 15 is connected to the inner wall of the second accommodating chamber 14 through a rounded corner. The inner wall of the fluid concentration chamber 15 and the inner wall of the second accommodating chamber 14 are transitioned through a rounded corner, so that the connection between the two is smoother and the flow resistance is smaller, so that the cooling medium can flow away more easily, thereby ensuring the heat dissipation effect.

[0034] In summary, an embodiment of the present invention provides a radiator, including a shell 1, a flow balancing structure 3 and a flow channel structure 2, the inlet 11 is connected to the flow balancing structure 3, the flow balancing structure 3 is connected to the outlet 12 through the flow channel structure 2, the flow channel structure 2 includes a plurality of heat dissipation channels, the flow balancing structure 3 includes at least 3 spoilers 31 arranged in sequence, and a channel opening for a cooling medium to pass through is formed between two adjacent spoilers 31. When the cooling medium enters the shell 1 from the inlet 11, it is diverted through each channel opening so that the cooling medium can be more evenly distributed to each heat dissipation channel, thereby facilitating uniform heat dissipation.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A radiator, characterized in that: The invention comprises a shell, a flow balancing structure and a flow channel structure, wherein the shell is provided with an inlet and an outlet, wherein the inlet is provided on the right end of the shell, and the outlet is provided on the left end of the shell, and the inlet and the outlet are arranged opposite to each other; a first accommodating chamber and a second accommodating chamber are provided in the shell, wherein the first accommodating chamber is communicated with the second accommodating chamber, the flow balancing structure is provided in the first accommodating chamber, the flow channel structure is provided in the second accommodating chamber, the inlet is communicated with the flow balancing structure, and the flow balancing structure is communicated with the outlet through the flow channel structure; The flow channel structure includes a plurality of heat dissipation flow channels, the flow balancing structure includes at least three spoilers arranged in sequence and at intervals, and a channel opening for cooling medium to pass through is formed between two adjacent spoilers; There are multiple groups of the flow balancing structures, which are arranged in sequence along the left-right direction of the shell, and the spoilers of two adjacent groups of the flow balancing structures are staggered; the cross-sectional area of ​​the first accommodating cavity gradually increases from the right end of the first accommodating cavity to the left end of the first accommodating cavity, and the number of spoilers of each group of the flow balancing structures gradually increases from the right end of the first accommodating cavity to the left end of the first accommodating cavity.

2. The heat sink according to claim 1, characterized in that A fluid concentration chamber is provided in the shell, and the fluid concentration chamber is provided between the flow channel structure and the outlet.

3. The heat sink according to claim 2, characterized in that 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.

4. The heat sink according to claim 2, characterized in that: The fluid concentration chamber is communicated with the second accommodating chamber, and the inner wall of the fluid concentration chamber is connected with the inner wall of the second accommodating chamber through a rounded corner.

5. The heat sink according to claim 1, characterized in that 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.

6. The heat sink according to claim 1, characterized in that The radiator further comprises a cooling medium, and the cooling medium is a phase change medium.

7. The heat sink according to claim 6, characterized in that The cooling medium is fluorinated liquid.

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