Heat dissipation plate assembly

Abstract

The utility model discloses a heat dissipation plate assembly. The heat dissipation plate assembly comprises a heat dissipation plate; the heat dissipation plate is provided with a liquid inlet, a liquid outlet and a heat dissipation flow channel; the heat dissipation flow channel is used for allowing a refrigerant to flow, and the two ends of the heat dissipation flow channel communicate with the liquid inlet and the liquid outlet correspondingly; the liquid inlet and the liquid outlet are adjacently arranged, a refrigerant entering through the liquid inlet and a refrigerant discharged through the liquid outlet are subjected to heat exchange, so that the refrigerant entering through the liquid inlet and the refrigerant discharged through the liquid outlet are subjected to heat exchange, and the temperature difference between the refrigerant entering through the liquid inlet and the refrigerant discharged through the liquid outlet is reduced; therefore, the uniform heat dissipation effect of the heat dissipation plate assembly is ensured, the situation that the temperature of the refrigerant at the liquid outlet is higher than that of the refrigerant at the liquid inlet is avoided, and the heat dissipation effect of the heat dissipation plate assembly on the battery is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat dissipation plate assemblies, and in particular to a heat dissipation plate assembly. BACKGROUND

[0002] With the development of science and technology, a battery pack is an electronic component of new energy, and the battery pack is used to supply electric energy to components. The battery pack generates heat during operation, and the heat causes the working environment of the battery pack to be in a high-temperature state. A heat dissipation plate assembly is used to dissipate heat from the battery pack.

[0003] In the prior art, the heat dissipation plate assembly includes a heat dissipation plate, which is provided with a liquid inlet, a liquid outlet, and a heat dissipation flow channel. The liquid inlet and the liquid outlet are arranged at two ends of the heat dissipation flow channel, respectively, and are not adjacent. The liquid inlet and the liquid outlet are far apart, and the refrigerant flows from one end of the battery pack to the other end. Due to the continuous increase in temperature of the refrigerant during heat exchange with the battery pack, the temperature of the refrigerant at the liquid outlet is higher than that at the liquid inlet, resulting in uneven heat dissipation and poor heat dissipation effect of the heat dissipation plate assembly. SUMMARY

[0004] An object of the present application is to provide a heat dissipation plate assembly that aims to solve the technical problem of uneven heat dissipation caused by the higher temperature of the refrigerant at the liquid outlet than that at the liquid inlet, resulting in poor heat dissipation effect of the heat dissipation plate assembly.

[0005] To achieve the above-mentioned object, the present application provides a solution: a heat dissipation plate assembly, comprising:

[0006] a heat dissipation plate provided with a liquid inlet, a liquid outlet, and a heat dissipation flow channel; the heat dissipation flow channel is used for the flow of refrigerant, and the two ends of the heat dissipation flow channel are respectively connected to the liquid inlet and the liquid outlet; the liquid inlet and the liquid outlet are arranged adjacent to each other, and the refrigerant entering through the liquid inlet and the refrigerant discharged through the liquid outlet are subjected to heat exchange.

[0007] Optionally, the liquid inlet and the liquid outlet are arranged adjacent to each other along the length direction or the width direction of the heat dissipation plate;

[0008] The temperature of the refrigerant entering through the liquid inlet is a first temperature;

[0009] The temperature of the refrigerant discharged through the liquid outlet is a second temperature, and the temperature difference between the second temperature and the first temperature is in the range of 0 to 2 degrees Celsius.

[0010] Optionally, the heat dissipation flow channel includes a first flow channel and a second flow channel;

[0011] The first flow channel is connected to the liquid inlet;

[0012] The second flow channel is connected to the liquid outlet, and the second flow channel is arranged side by side with the first flow channel and communicates with each other.

[0013] Optionally, the flow channel shape of the first flow channel and the flow channel shape of the second flow channel are all in the shape of a back, a snake, a polygon or a circular arc.

[0014] Optionally, the first flow channel is provided with a first sub-flow channel and a first parallel flow channel; the first sub-flow channel and the first parallel flow channel are arranged in sequence.

[0015] In the first flow channel, the first sub-flow channel is between two adjacent first parallel flow channels, and the two ends of the first sub-flow channel are connected to the head end and the tail end of the two adjacent first parallel flow channels respectively.

[0016] Optionally, the first parallel flow channel includes a plurality of first straight flow channels, and the plurality of first straight flow channels are arranged side by side along the length direction or the width direction of the heat dissipation plate and communicate with each other.

[0017] The communication of the plurality of first straight flow channels is connected to one end of the first sub-flow channel.

[0018] Optionally, the first flow channel has a plurality of the second flow channel, and the second flow channel is between two adjacent first flow channels.

[0019] The second flow channel is provided with two second sub-flow channels, and the two second sub-flow channels communicate with the corresponding first flow channel and converge with each other at the liquid outlet.

[0020] Optionally, the heat dissipation plate includes a first plate body and a second plate body, the first plate body and the second plate body are arranged in a stacked manner along the thickness direction of the first plate body, and the heat dissipation flow channel is formed between the first plate body and the second plate body.

[0021] The liquid inlet and the liquid outlet are both arranged on the first plate body or the second plate body.

[0022] Optionally, the first plate body is provided with the heat dissipation flow channel, and the second plate body covers the opening of the heat dissipation flow channel.

[0023] The heat dissipation plate assembly further includes a reinforcing plate, the reinforcing plate is arranged on the side of the first plate body away from the second plate body, and the first plate body is reinforced.

[0024] Optionally, the heat dissipation plate assembly further includes a support beam, the support beam is arranged on the side of the reinforcing plate away from the first plate body, and the support beam, the reinforcing plate, the first plate body and the second plate body are stacked along the thickness direction of the heat dissipation plate assembly and are welded with each other.

[0025] The present application has the beneficial effects that:

[0026] The utility model provides a kind of radiating plate assembly applied, and radiating plate is equipped with liquid inlet, liquid outlet and radiating flow channel;Radiating flow channel is used to flow refrigerant, and the both ends of radiating flow channel are communicated liquid inlet and liquid outlet respectively;Liquid inlet and liquid outlet are adjacently arranged, and the refrigerant that enters through liquid inlet and the refrigerant that is discharged through liquid outlet exchange heat, to realize the refrigerant that enters through liquid inlet and the refrigerant that is discharged through liquid outlet exchange heat, reduce the temperature difference between the refrigerant that enters through liquid inlet and the refrigerant that is discharged through liquid outlet, to ensure the radiating uniform effect of radiating plate assembly, avoid the temperature of the refrigerant of liquid outlet higher than the refrigerant of liquid inlet, improve the radiating effect of radiating plate assembly to battery. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained according to the structures shown in these drawings without creative labor.

[0028] Figure 1 is the assembly structure schematic diagram of radiating plate assembly provided by the embodiment of the present application;

[0029] Figure 2 is another assembly structure schematic diagram of radiating plate assembly provided by the embodiment of the present application;

[0030] Figure 3 is the assembly structure side view of radiating plate assembly provided by the embodiment of the present application;

[0031] Figure 4 shows Figure 3 the local enlarged view of A in figure;

[0032] Figure 5 is the exploded view of radiating plate assembly provided by the embodiment of the present application;

[0033] Figure 6 is the schematic diagram of radiating flow channel of radiating plate assembly provided by the embodiment of the present application in first plate body.

[0034] EXPLANATION OF DRAWINGS:

[0035] 100, radiating plate assembly;

[0036] 10. Heat sink; 11. Liquid inlet; 12. Liquid outlet; 13. Heat dissipation channel; 131. First channel; 1311. First sub-channel; 1312. First parallel channel; 13121. First direct channel; 132. Second channel; 1321. Second sub-channel; 14. First plate; 15. Second plate;

[0037] 20. Reinforcing plate;

[0038] 30. Support beam. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0040] Please refer to the attached document. Figures 1-5 This application provides a heat sink assembly 100 for heat dissipation of a battery pack.

[0041] Please refer to the attached document. Figures 1-5 In this embodiment, the heat sink assembly 100 includes a heat sink 10; the heat sink 10 is provided with an inlet 11, an outlet 12, and a heat dissipation channel 13; the heat dissipation channel 13 is used for refrigerant flow, and the two ends of the heat dissipation channel 13 are respectively connected to the inlet 11 and the outlet 12; the inlet 11 and the outlet 12 are arranged adjacent to each other, and the refrigerant entering through the inlet 11 and the refrigerant exiting through the outlet 12 exchange heat, so as to realize the heat exchange between the refrigerant entering through the inlet 11 and the refrigerant exiting through the outlet 12, reduce the temperature difference between the refrigerant entering through the inlet 11 and the refrigerant exiting through the outlet 12, thereby ensuring the uniform heat dissipation effect of the heat sink assembly 100, avoiding the temperature of the refrigerant at the outlet 12 being higher than that of the refrigerant at the inlet 11, and improving the heat dissipation effect of the heat sink assembly 100 on the battery.

[0042] Please refer to the attached document. Figures 1-5The inlet 11 and outlet 12 are arranged adjacent to each other along the length or width of the heat sink 10, so that the inlet 11 and outlet 12 are on the same side of the heat sink 10, which facilitates that the inlet 11 and outlet 12 are on the same side of the heat dissipation channel 13. The temperature of the refrigerant entering through the inlet 11 is the first temperature; the temperature of the refrigerant discharged through the outlet 12 is the second temperature. The temperature difference between the second temperature and the first temperature is in the range of 0 to 2 degrees Celsius, which ensures that the temperature of the refrigerant entering through the inlet 11 is close to the temperature of the refrigerant discharged through the outlet 12, ensuring the uniform heat dissipation effect of the heat sink assembly 100, avoiding the temperature of the refrigerant at the outlet 12 being higher than that at the inlet 11, and improving the heat dissipation effect of the heat sink assembly 100 on the battery.

[0043] Please refer to the attached document. Figure 6 The heat dissipation channel 13 includes a first channel 131 and a second channel 132. The first channel 131 is connected to the liquid inlet 11 so that the liquid inlet 11 is connected to the liquid inlet end of the first channel 131, thereby facilitating the flow of refrigerant through the liquid inlet 11 to the first channel 131. The second channel 132 is connected to the liquid outlet 12 so that the liquid outlet 12 is connected to the liquid outlet end of the second channel 132. The second channel 132 and the first channel 131 are arranged side by side and connected to each other so that the refrigerant in the first channel 131 can flow to the second channel 132, thereby facilitating the refrigerant to pass through the liquid inlet 11, the first channel 131, the second channel 132 and the liquid outlet 12 in sequence.

[0044] Please refer to the attached document. Figure 6 The flow channel shapes of the first flow channel 131 and the second flow channel 132 are both in the shape of a square, a snake, a polygon, or an arc. Preferably, the flow channel shapes of the first flow channel 131 and the second flow channel 132 are both in the shape of a square, so that the first flow channel 131 and the second flow channel 132 can cover the heat sink 10 and ensure that the heat sink 10 dissipates heat evenly.

[0045] Please refer to the attached document. Figure 6The first flow channel 131 is provided with a first sub-flow channel 1311 and a first parallel flow channel 1312; the first sub-flow channel 1311 and the first parallel flow channel 1312 are arranged sequentially; in the first flow channel 131, the first sub-flow channel 1311 is located between two adjacent first parallel flow channels 1312, and the two ends of the first sub-flow channel 1311 are respectively connected to the beginning and end of the two adjacent first parallel flow channels 1312, so that the refrigerant can flow through the first sub-flow channel 1311 to the two first parallel flow channels 1312, or the refrigerant can flow through the two first parallel flow channels 1312 to one first sub-flow channel 1311, so that the refrigerant can pass through the first sub-flow channel 1311, the two first parallel flow channels 1312, the first sub-flow channel 1311, and the two first parallel flow channels 1312 in sequence. Optionally, the first sub-flow channel 1311 is arc-shaped to facilitate changing the flow direction of the refrigerant in the first sub-flow channel 1311.

[0046] Please refer to the attached document. Figure 6 The first parallel flow channel 1312 includes a plurality of first direct flow channels 13121. The plurality of first direct flow channels 13121 are arranged side by side along the length or width direction of the heat sink 10 so that the plurality of first direct flow channels 13121 cover the length and width direction of the heat sink 10, ensuring uniform heat dissipation of the heat sink 10. The plurality of first direct flow channels 13121 are interconnected. The connection point of the plurality of first direct flow channels 13121 is connected to one end of the first sub-flow channel 1311 so that the refrigerant in the plurality of first direct flow channels 13121 flows to the same first sub-flow channel 1311, thereby facilitating the change of the flow direction of the refrigerant in the plurality of first direct flow channels 13121 through the first sub-flow channel 1311, and thus facilitating the refrigerant to flow in a U-shape in the heat sink 10.

[0047] Please refer to the attached document. Figure 6 The first flow channel 131 has multiple channels, and the second flow channel 132 is located between two adjacent first flow channels 131 so that the second flow channel 132 can be connected to the two adjacent first flow channels 131. The second flow channel 132 is provided with two second sub-flow channels 1321, which are connected to the corresponding first flow channels 131 and converge at the liquid outlet 12 so that the refrigerant in each first flow channel 131 can flow to the liquid outlet 12 through each second sub-flow channel 1321, so that the refrigerant can be discharged through the liquid outlet 12.

[0048] Please refer to the attached document. Figures 5-6The heat sink 10 includes a first plate 14 and a second plate 15. The first plate 14 and the second plate 15 are stacked along the thickness direction of the first plate 14 so that the second plate 15 is fixed to the upper side of the first plate 14. A heat dissipation channel 13 is formed between the first plate 14 and the second plate 15 so that the first plate 14 and the second plate 15 can achieve heat dissipation through the heat dissipation channel 13, thereby facilitating heat dissipation on the surface of the first plate 14 and the surface of the second plate 15. The liquid inlet 11 and the liquid outlet 12 are both opened on the first plate 14 or the second plate 15 so that the liquid inlet 11 and the liquid outlet 12 are on the same side of the first plate 14 or the second plate 15. Preferably, the liquid inlet 11 and the liquid outlet 12 are on the same side of the first plate 14.

[0049] Please refer to the attached document. Figure 6 The first plate 14 is provided with a heat dissipation channel 13, and the second plate 15 covers the opening of the heat dissipation channel 13 so that the second plate 15 can seal the heat dissipation channel 13, thereby facilitating the contact between the second plate 15 and the heat dissipation channel 13 to achieve the heat dissipation effect of the second plate 15.

[0050] Please refer to the attached document. Figure 5 The heat sink assembly 100 also includes a reinforcing plate 20, which is disposed on the side of the first plate 14 facing away from the second plate 15, so that the reinforcing plate 20 and the second plate 15 are respectively located on both sides of the first plate 14, thereby facilitating the separate arrangement of the reinforcing plate 20 and the second plate 15. The reinforcing plate 20 strengthens the first plate 14 to enhance its strength and ensure its tensile strength. The reinforcing plate 20 is arranged along the width of the first plate 14 to enhance the strength of the first plate 14 in the width direction.

[0051] Please refer to the attached document. Figure 2 The reinforcing plate 20 has multiple plates arranged along the length of the first plate 14. By arranging multiple reinforcing plates 20, the reinforcing effect of the reinforcing plates 20 relative to the first plate 14 is increased, thus ensuring the stability of the first plate 14.

[0052] Please refer to the attached document. Figure 5 The heat sink assembly 100 also includes a support beam 30, which is disposed on the side of the reinforcing plate 20 facing away from the first plate 14. The support beam 30, the reinforcing plate 20, the first plate 14 and the second plate 15 are stacked along the thickness direction of the heat sink assembly 100 and welded to each other so that the support beam 30, the reinforcing plate 20, the first plate 14 and the second plate 15 can be fixedly connected in sequence, thereby facilitating the support beam 30 to further strengthen the strength of the first plate 14 and ensuring the tensile strength of the heat sink assembly 100.

[0053] The beneficial effects of this invention are as follows:

[0054] This utility model provides a heat sink assembly 100, which has an inlet 11, an outlet 12, and a heat dissipation channel 13. The heat dissipation channel 13 is used for refrigerant flow, and its two ends are connected to the inlet 11 and the outlet 12, respectively. The inlet 11 and the outlet 12 are arranged adjacent to each other, and the refrigerant entering through the inlet 11 and the refrigerant exiting through the outlet 12 exchange heat. This reduces the temperature difference between the refrigerant entering through the inlet 11 and the refrigerant exiting through the outlet 12, thereby ensuring the uniform heat dissipation effect of the heat sink assembly 100, preventing the temperature of the refrigerant at the outlet 12 from being higher than that at the inlet 11, and improving the heat dissipation effect of the heat sink assembly 100 on the battery.

[0055] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0056] It should also be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or may be connected to an intermediary component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or indirectly connected to the other component through an intermediary component.

[0057] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0058] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A heat sink assembly, characterized in that, include: The heat sink is provided with a liquid inlet, a liquid outlet, and a heat dissipation channel; the heat dissipation channel is used for the flow of refrigerant, and the two ends of the heat dissipation channel are respectively connected to the liquid inlet and the liquid outlet; the liquid inlet and the liquid outlet are arranged adjacent to each other, and the refrigerant entering through the liquid inlet and the refrigerant exiting through the liquid outlet exchange heat.

2. The heat sink assembly according to claim 1, characterized in that, The liquid inlet and the liquid outlet are arranged adjacent to each other along the length or width of the heat sink. The temperature of the refrigerant entering through the inlet is the first temperature; The temperature of the refrigerant discharged through the outlet is the second temperature, and the temperature difference between the second temperature and the first temperature is in the range of 0 to 2 degrees Celsius.

3. The heat sink assembly according to claim 1, characterized in that, The heat dissipation channel includes a first channel and a second channel; The first flow channel is connected to the liquid inlet; The second flow channel is connected to the liquid outlet, and the second flow channel is arranged side by side with the first flow channel and is interconnected.

4. The heat sink assembly according to claim 3, characterized in that, The flow channel shape of the first flow channel and the flow channel shape of the second flow channel are both in the shape of a square, a snake, a polygon, or an arc.

5. The heat sink assembly according to claim 3, characterized in that, The first flow channel is provided with a first sub-flow channel and a first parallel flow channel; the first sub-flow channel and the first parallel flow channel are arranged sequentially; In the first flow channel, the first sub-flow channel is located between two adjacent first parallel flow channels, and the two ends of the first sub-flow channel are respectively connected to the beginning and end of the two adjacent first parallel flow channels.

6. The heat sink assembly according to claim 5, characterized in that, The first parallel flow channel includes a plurality of first DC channels, which are arranged side by side along the length or width direction of the heat sink and are interconnected. The connection points of the multiple first DC channels are connected to one end of the first sub-channel.

7. The heat sink assembly according to claim 3, characterized in that, The first flow channel has multiple channels, and the second flow channel is located between two adjacent first flow channels; The second flow channel has two second sub-flow channels, which are connected to the corresponding first flow channel and converge at the liquid outlet.

8. The heat sink assembly according to any one of claims 1 to 7, characterized in that, The heat sink includes a first plate and a second plate, which are stacked along the thickness direction of the first plate, and a heat dissipation channel is formed between the first plate and the second plate. Both the liquid inlet and the liquid outlet are located on the first plate or the second plate.

9. The heat sink assembly according to claim 8, characterized in that, The first plate is provided with the heat dissipation channel, and the second plate covers the opening of the heat dissipation channel; The heat sink assembly also includes a reinforcing plate, which is disposed on the side of the first plate facing away from the second plate and reinforces the first plate.

10. The heat sink assembly according to claim 9, characterized in that, The heat sink assembly also includes a support beam, which is disposed on the side of the reinforcing plate facing away from the first plate. The support beam, the reinforcing plate, the first plate, and the second plate are stacked along the thickness direction of the heat sink assembly and welded together.

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