Multifunctional radiating fin, radiator for battery pack and battery pack

Abstract

The utility model provides a multifunctional radiating fin, a radiator for a battery pack and the battery pack, the number of the multifunctional radiating fin is at least one, the multifunctional radiating fin comprises a radiating main body plate and a plurality of radiating partition plates, one ends of the radiating partition plates are uniformly fixed on one surface of the radiating main body plate, and the other ends of the radiating partition plates are uniformly fixed on the other surface of the radiating main body plate. A heat dissipation through cavity is formed by every two adjacent heat dissipation partition plates, a sawtooth strip plate is arranged at the other end of each heat dissipation partition plate, and a sawtooth welding groove is defined by each sawtooth strip plate and the corresponding heat dissipation partition plate. Each sawtooth welding groove is used for abutting against the sawtooth strip plate of the corresponding heat dissipation partition plate on the other heat dissipation main body plate.

Description

Technical Field

[0001] The present disclosure relates to the field of battery heat dissipation, and in particular to a multifunctional heat dissipation fin, a radiator for a battery pack, and a battery pack. Background Art

[0002] With the rapid development of the power battery industry, the widespread application of power batteries has become more and more common. The differences between power batteries of different types, capacities, shapes and sizes are becoming more and more obvious, so their needs for heat dissipation are also different. In the traditional battery pack cooling method, engineers usually need to design different cooling methods and corresponding cooling structures for different battery packs, which leads to the need to develop a large number of different types of cooling molds, resulting in a huge waste of resources. In the traditional battery heat dissipation design, each battery pack that needs heat dissipation needs to design a matching heat dissipation system. Moreover, the air-cooled heat dissipation structure (such as an air-cooled fin radiator) is incompatible with the water-cooled heat dissipation structure (such as a water-cooled harmonica tube radiator), so the designed heat dissipation systems vary greatly, and the heat dissipation fin molds of the two heat dissipation modes cannot be standardized.

[0003] However, with the advancement of technology and the development of society, the types, capacities and sizes of battery packs are becoming more and more diverse, and the corresponding heat dissipation systems and structures are also increasing exponentially. What is even more troubling is that once a battery pack reaches the end of its service life, the matching heat dissipation system is difficult to reuse, resulting in a large amount of waste of molds and parts.

[0004] For example, Chinese patent document CN211929478U discloses an air-cooled uniform temperature radiator, including a radiator substrate, a plurality of heat dissipation fin groups are arranged on one side of the radiator substrate, and the other side is used to connect the device to be cooled; the plurality of heat dissipation fin groups are arranged in sequence along the flow direction of the heat dissipation air, and each heat dissipation fin group includes a plurality of heat dissipation fins; along the flow direction of the heat dissipation air, the number of fins in the plurality of heat dissipation fin groups increases successively, the thickness of the fins in the plurality of heat dissipation fin groups decreases successively, and the interval between adjacent fins in the plurality of heat dissipation fin groups decreases successively.

[0005] However, the design of the above-mentioned air-cooled temperature radiator has the following problems:

[0006] Although the above-mentioned air-cooled temperature-averaging radiator can improve the temperature uniformity of the entire radiator, the overall structure is simple and easy to produce. However, as the types, capacities, and sizes of battery packs are becoming more and more diverse, the air-cooled temperature-averaging radiator can only be adapted to the production of battery packs that require air-cooling systems, while a new mold needs to be designed for the production of battery packs that require water-cooling systems. This also shows that the mold of its radiator structure is not compatible with the production of water-cooling structures.

[0007] In summary, there is an urgent need for a heat sink that is adaptable and compatible with the production requirements of water-cooled heat dissipation systems and air-cooled heat dissipation systems. Utility Model Content

[0008] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a multifunctional heat sink fin, a radiator for a battery pack, and a battery pack that are adaptable and compatible with the production requirements of a water-cooled heat dissipation system and an air-cooled heat dissipation system.

[0009] The purpose of this disclosure is achieved through the following technical solutions:

[0010] A multifunctional heat dissipation fin, the number of which is at least one, comprising:

[0011] Heat dissipation main body plate;

[0012] Multiple heat dissipation baffles, one ends of the multiple heat dissipation baffles are evenly fixed on one surface of the heat dissipation main body plate, two adjacent heat dissipation baffles form a heat dissipation cavity, the other end of each heat dissipation baffle is provided with a serrated strip plate, each serrated strip plate and the corresponding heat dissipation baffle are surrounded by a serrated welding groove, each serrated welding groove is used for welding with the serrated strip plate of the corresponding heat dissipation baffle on another heat dissipation main body plate.

[0013] In one embodiment, the heat dissipation main plate, the plurality of heat dissipation baffles and the plurality of serrated strip plates are an integrally formed structure.

[0014] In one of the embodiments, the heat dissipation main plate is a rectangular plate.

[0015] In one embodiment, the heat dissipation baffle and the serrated strip are both rectangular plates.

[0016] In one of the embodiments, the heat dissipation main plate includes a straight heat dissipation main plate and an angle heat dissipation main plate, and the straight heat dissipation main plate is connected to the angle heat dissipation main plate.

[0017] In one embodiment, each of the heat dissipation baffles includes a straight heat dissipation baffle and an angle heat dissipation baffle, one end of a plurality of the straight heat dissipation baffles is evenly fixed on one surface of the straight heat dissipation main body plate, and one end of a plurality of the angle heat dissipation baffles is evenly fixed on one surface of the angle heat dissipation main body plate.

[0018] In one embodiment, each of the serrated strips includes a straight serrated strip and an angled serrated strip, each of the straight serrated strips is fixed to the other end of the corresponding straight heat dissipation baffle, and each of the angled serrated strips is fixed to the other end of the corresponding angled heat dissipation baffle.

[0019] In one embodiment, each of the straight heat dissipation baffles is connected to the corresponding bent-angle heat dissipation baffles, and each of the straight serrated strips is connected to the corresponding bent-angle serrated strips.

[0020] A radiator for a battery pack comprises the multifunctional heat dissipation fins described in any of the above embodiments.

[0021] A battery pack comprises the radiator for the battery pack described in the above embodiment.

[0022] Compared with the prior art, the present invention has at least the following advantages:

[0023] 1. When the multifunctional heat sink is used as an air-cooled heat dissipation structure, one end of multiple heat sinks are evenly fixed on one side of the heat sink main plate, and two adjacent heat sinks are formed with a heat dissipation cavity, and then the other side of the heat sink main plate is attached to the battery pack. In this way, the heat generated by the battery pack can be transferred to the heat sink main plate and the heat sink. At the same time, the wind from the heat dissipation fan in the battery pack radiator blows toward each heat dissipation cavity to dissipate the heat of the battery pack. In this way, the multifunctional heat sink fins can adapt to the heat dissipation requirements of the air-cooled heat dissipation system.

[0024] 2. When the multifunctional heat sink fins are used as a water-cooled heat dissipation structure, the number of heat sink main plates is two, and each serrated welding groove is used for welding the serrated strip plates on the corresponding heat sink baffle on the other heat sink main plate, that is, the heat sink baffles on the two heat sink main plates are welded one by one to form a water-cooled heat dissipation structure, and the corresponding two heat dissipation cavities form a closed-loop heat dissipation cavity. By making the other side of one of the heat sink main plates fit on the battery pack, the heat generated by the battery pack can be transferred to the heat sink main plate and the heat sink baffle. At the same time, the water-cooling component in the battery pack radiator flows through each closed-loop heat dissipation cavity to dissipate the heat of the battery pack. In this way, the multifunctional heat sink fins can adapt to the heat dissipation requirements of the water-cooled heat dissipation system.

[0025] 3. Since the multifunctional heat sink fins are compatible with the production requirements of air-cooled heat sink structures and water-cooled heat sink structures, the molds used to produce the multifunctional heat sink fins can achieve a one-mold-for-multiple-purposes effect, thereby realizing the standardization of heat sink fin molds, which can effectively save mold opening costs. The multifunctional heat sink fins are then flexibly arranged and combined to form a radiator, which can adapt to different heat sink modes and the heat sink requirements of battery packs of various sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 A schematic structural diagram of a multifunctional heat dissipation fin according to an embodiment;

[0028] Figure 2 for Figure 1 The structure diagram of the multifunctional heat sink fins shown is applied to a water cooling structure.

[0029] Figure 3 It is a schematic structural diagram of a multifunctional heat dissipation fin according to another embodiment. DETAILED DESCRIPTION

[0030] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0031] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0033] The present invention provides a multifunctional heat dissipation fin, the number of which is at least one, and the multifunctional heat dissipation fin comprises a heat dissipation main body plate and a plurality of heat dissipation baffles, one ends of the plurality of heat dissipation baffles are evenly fixed on one surface of the heat dissipation main body plate, two adjacent heat dissipation baffles form a heat dissipation cavity, the other end of each heat dissipation baffle is provided with a serrated strip, a serrated welding groove is formed between each of the serrated strips and the corresponding heat dissipation baffle, and each of the serrated welding grooves is used to abut the serrated strip of the corresponding heat dissipation baffle on another heat dissipation main body plate.

[0034] See also Figure 1 to Figure 2 In order to better understand the multifunctional heat dissipation fin 10 of the present disclosure, the multifunctional heat dissipation fin 10 is further explained below:

[0035] A multifunctional heat dissipation fin 10 in one embodiment, the number of the multifunctional heat dissipation fin 10 is at least one, the multifunctional heat dissipation fin 10 comprises a heat dissipation main body plate 100 and a plurality of heat dissipation baffles 200, one end of the plurality of heat dissipation baffles 200 is evenly fixed on one surface of the heat dissipation main body plate 100, two adjacent heat dissipation baffles 200 form a heat dissipation cavity 102, a serrated strip 210 is provided at the other end of each heat dissipation baffle 200, a serrated welding groove 202 is formed between each serrated strip 210 and the corresponding heat dissipation baffle 200, and each serrated welding groove 202 is used to abut the serrated strip 210 of the corresponding heat dissipation baffle 200 on another heat dissipation main body plate 100.

[0036] In this embodiment, the multifunctional heat sink 10 is used as an air-cooled heat dissipation structure by evenly fixing one end of a plurality of heat sinks 200 on one side of the heat sink main plate 100, and two adjacent heat sinks 200 form a heat dissipation cavity 102, and then the other side of the heat sink main plate 100 is attached to the battery pack. In this way, the heat generated by the battery pack can be transferred to the heat sink main plate 100 and the heat sink 200, and at the same time, the wind from the heat dissipation fan in the battery pack radiator blows toward each heat dissipation cavity 102 to dissipate the heat of the battery pack. In this way, the multifunctional heat sink 10 can adapt to the heat dissipation requirements of the air-cooled heat dissipation system.

[0037] Furthermore, when the multifunctional heat dissipation fin 10 is used as a water-cooled heat dissipation structure, the number of heat dissipation main plates 100 is two, and each serrated welding groove 202 is used for welding the serrated strip plate 210 on the corresponding heat dissipation baffle 200 on the other heat dissipation main plate 100, that is, the heat dissipation baffles 200 on the two heat dissipation main plates 100 are welded one by one to form a water-cooled heat dissipation structure, and the corresponding two heat dissipation cavities 102 form a closed-loop heat dissipation cavity 102. By making the other side of one of the heat dissipation main plates 100 fit on the battery pack, the heat generated by the battery pack can be transferred to the heat dissipation main plate 100 and the heat dissipation baffle 200. At the same time, the water-cooling component in the battery pack radiator flows through each closed-loop heat dissipation cavity 102 to dissipate the heat of the battery pack. In this way, the multifunctional heat dissipation fin 10 can adapt to the heat dissipation requirements of the water-cooled heat dissipation system.

[0038] Furthermore, since the multifunctional heat sink 10 is compatible with the production requirements of air-cooled heat sink structures and water-cooled heat sink structures, the mold for producing the multifunctional heat sink 10 can achieve a one-mold-for-multiple-purposes effect, thereby realizing the standardization of heat sink molds, and thus effectively saving mold opening costs. Then, by flexibly arranging and combining the multifunctional heat sink 10 to form a radiator, the radiator can adapt to different heat dissipation modes and the heat dissipation requirements of battery packs of various sizes.

[0039] It should be noted that when the number of multifunctional heat sink fins 10 is an odd number, the multifunctional heat sink fins 10 serve as an air-cooled heat sink structure, and multiple multifunctional heat sink fins 10 can be spliced ​​together to adapt to the air-cooled heat sink requirements of battery pack radiators of different sizes. When the number of multifunctional heat sink fins 10 is an even number and not zero, the multifunctional heat sink fins 10 are spliced ​​together in pairs to form a water-cooled harmonica tube heat sink structure, and multiple water-cooled harmonica heat sink structures spliced ​​by the multifunctional heat sink fins 10 can be spliced ​​together to adapt to the water-cooled heat sink requirements of battery pack radiators of different sizes.

[0040] It should be noted that when the multifunctional heat sink 10 is applied to an air-cooled heat sink structure, the heat sink cavity 102 does not form a closed loop, and air-cooled heat dissipation can be performed by passing cold air in. When the multifunctional heat sink 10 is applied to a water-cooled heat sink structure, the heat sink cavity 102 forms a closed loop so that cold water can be passed into the water-cooled component for water-cooled heat dissipation.

[0041] like Figure 1 As shown, in one embodiment, the heat dissipation main plate 100, the plurality of heat dissipation baffles 200 and the plurality of sawtooth strips 210 are an integrally formed structure. It can be understood that this can ensure that the multifunctional heat dissipation fin 10 has good structural stability and good structural strength.

[0042] like Figure 1As shown, in one embodiment, the heat dissipation main body plate 100 is a rectangular plate. It can be understood that when the heat dissipation main body plate 100 is a rectangular plate, the multifunctional heat dissipation fin 10 is a direct current type heat dissipation fin.

[0043] like Figure 1 As shown, in one embodiment, the heat dissipation baffle 200 and the sawtooth strip plate 210 are both rectangular plates. It can be understood that when the heat dissipation baffle 200 and the sawtooth strip plate 210 are both rectangular plates, the multifunctional heat dissipation fin 10 is a direct current type heat dissipation fin.

[0044] like Figure 3 As shown, in one embodiment, the heat dissipation main body plate 100 includes a straight heat dissipation main body plate 100a and an angle heat dissipation main body plate 100b, and the straight heat dissipation main body plate 100a is connected to the angle heat dissipation main body plate 100b. It can be understood that when the straight heat dissipation main body plate 100a and the angle heat dissipation main body plate 100b are spliced ​​together, the multifunctional heat dissipation fin 10 forms an angle heat dissipation fin to adapt to the heat dissipation requirements of battery pack radiators of different shapes and sizes, thereby effectively improving the adaptability of the multifunctional heat dissipation fin 10.

[0045] like Figure 3 As shown, in one embodiment, each of the heat dissipation baffles 200 includes a straight heat dissipation baffle 200a and an angle heat dissipation baffle 200b, one end of the plurality of straight heat dissipation baffles 200a is evenly fixed on one surface of the straight heat dissipation main body plate 100a, and one end of the plurality of angle heat dissipation baffles 200b is evenly fixed on one surface of the angle heat dissipation main body plate 100b. It can be understood that since the straight heat dissipation main body plate 100a and the angle heat dissipation main body plate 100b are spliced ​​together, that is, one end of the corresponding plurality of straight heat dissipation baffles 200a is evenly fixed on one surface of the straight heat dissipation main body plate 100a, and one end of the corresponding plurality of angle heat dissipation baffles 200b is evenly fixed on one surface of the angle heat dissipation main body plate 100b, it can ensure that the heat dissipation cavity 102 is ventilated for heat dissipation.

[0046] like Figure 3 As shown, in one embodiment, each of the sawtooth strips 210 includes a straight sawtooth strip 210a and an angled sawtooth strip 210b, each of the straight sawtooth strips 210a is fixed to the other end of the corresponding straight heat dissipation baffle 200a, and each of the angled sawtooth strips 210b is fixed to the other end of the corresponding angled heat dissipation baffle 200b. It can be understood that since each straight sawtooth strip 210a is fixed to the other end of the corresponding straight heat dissipation baffle 200a, and each angled sawtooth strip 210b is fixed to the other end of the corresponding angled heat dissipation baffle 200b, the corner heat dissipation fins can be better assembled into a water-cooled heat dissipation structure.

[0047] like Figure 3 As shown, in one embodiment, each of the linear heat dissipation baffles 200a is connected to the corresponding angled heat dissipation baffles 200b, and each of the linear sawtooth strips 210a is connected to the corresponding angled sawtooth strips 210b. It can be understood that each linear heat dissipation baffle 200a is connected to the corresponding angled heat dissipation baffle 200b, and each linear sawtooth strip 210a is connected to the corresponding angled heat dissipation baffle 200b, that is, the linear heat dissipation baffle 200a is connected to the angled heat dissipation baffle 200b, and the linear sawtooth strip 210a is connected to the angled heat dissipation baffle 200b, so as to ensure that the multifunctional heat dissipation fin 10 has good structural stability.

[0048] The present disclosure also provides a radiator for a battery pack, comprising the multifunctional heat dissipation fins described in any of the above embodiments.

[0049] In this embodiment, since the multifunctional heat sink fins are compatible with the production requirements of air-cooled heat sink structures and water-cooled heat sink structures, the mold for producing the multifunctional heat sink fins can achieve a one-mold-for-multiple-purposes effect, thereby realizing the standardization of heat sink fin molds, and thus effectively saving mold opening costs. Then, by flexibly arranging and combining the multifunctional heat sink fins to form a radiator, the radiator can adapt to different heat dissipation modes and battery pack radiators of various sizes.

[0050] The present disclosure also provides a battery pack, comprising the radiator for the battery pack described in the above embodiment.

[0051] In this embodiment, since the multifunctional heat sink fins are compatible with the production requirements of air-cooled heat sink structures and water-cooled heat sink structures, the mold for producing the multifunctional heat sink fins can achieve a one-mold-for-multiple-purposes effect, thereby realizing the standardization of the heat sink fin molds, and thus effectively saving the mold opening cost. Then, by flexibly arranging and combining the multifunctional heat sink fins to form a radiator, the radiator can be adapted to different heat dissipation modes and radiators of battery packs of various sizes, thereby effectively saving the production cost of the battery pack.

[0052] Compared with the prior art, the present invention has at least the following advantages:

[0053] 1. When the multifunctional heat sink is used as an air-cooled heat dissipation structure, one end of multiple heat sinks are evenly fixed on one side of the heat sink main plate, and two adjacent heat sinks are formed with a heat dissipation cavity, and then the other side of the heat sink main plate is attached to the battery pack. In this way, the heat generated by the battery pack can be transferred to the heat sink main plate and the heat sink. At the same time, the wind from the heat dissipation fan in the battery pack radiator blows toward each heat dissipation cavity to dissipate the heat of the battery pack. In this way, the multifunctional heat sink fins can adapt to the heat dissipation requirements of the air-cooled heat dissipation system.

[0054] 2. When the multifunctional heat sink fins are used as a water-cooled heat dissipation structure, the number of heat sink main plates is two, and each serrated welding groove is used to abut against the serrated strip on the corresponding heat sink baffle on the other heat sink main plate, that is, the heat sink baffles on the two heat sink main plates correspond to each other and abut against each other to form a water-cooled heat dissipation structure, and the corresponding two heat dissipation cavities form a closed-loop heat dissipation cavity. By making the other side of one of the heat sink main plates fit on the battery pack, the heat generated by the battery pack can be transferred to the heat sink main plate and the heat sink baffle. At the same time, the water-cooling component in the battery pack radiator flows through each closed-loop heat dissipation cavity to dissipate the heat of the battery pack. In this way, the multifunctional heat sink fins can adapt to the heat dissipation requirements of the water-cooled heat dissipation system.

[0055] 3. Since the multifunctional heat sink fins are compatible with the production requirements of air-cooled heat sink structures and water-cooled heat sink structures, the molds used to produce the multifunctional heat sink fins can achieve a one-mold-for-multiple-purposes effect, thereby realizing the standardization of heat sink fin molds, which can effectively save mold opening costs. The multifunctional heat sink fins are then flexibly arranged and combined to form a radiator, which can adapt to different heat sink modes and the heat sink requirements of battery packs of various sizes.

[0056] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the patent of the present disclosure shall be based on the attached claims.

Claims

1. A multifunctional heat sink fin, the number of which is at least one, characterized in that: The multifunctional heat dissipation fin comprises: Heat dissipation main body plate; Multiple heat dissipation baffles, one ends of the multiple heat dissipation baffles are evenly fixed on one surface of the heat dissipation main body plate, two adjacent heat dissipation baffles form a heat dissipation cavity, the other end of each heat dissipation baffle is provided with a serrated strip plate, each serrated strip plate and the corresponding heat dissipation baffle are surrounded by a serrated welding groove, each serrated welding groove is used for welding with the serrated strip plate of the corresponding heat dissipation baffle on another heat dissipation main body plate.

2. The multifunctional heat dissipation fin according to claim 1, characterized in that: The heat dissipation main plate, the plurality of heat dissipation baffles and the plurality of sawtooth strip plates are an integrally formed structure.

3. The multifunctional heat dissipation fin according to claim 1, characterized in that: The heat dissipation main plate is a rectangular plate.

4. The multifunctional heat dissipation fin according to claim 3, characterized in that: The heat dissipation baffle and the sawtooth strip plate are both rectangular plates.

5. The multifunctional heat dissipation fin according to claim 1, characterized in that: The heat dissipation main body plate comprises a straight heat dissipation main body plate and an angle heat dissipation main body plate, and the straight heat dissipation main body plate is connected to the angle heat dissipation main body plate.

6. The multifunctional heat dissipation fin according to claim 5, characterized in that: Each of the heat dissipation baffles includes a straight heat dissipation baffle and an angle heat dissipation baffle. One end of multiple straight heat dissipation baffles is evenly fixed on one surface of the straight heat dissipation main body plate, and one end of multiple angle heat dissipation baffles is evenly fixed on one surface of the angle heat dissipation main body plate.

7. The multifunctional heat dissipation fin according to claim 6, characterized in that: Each of the serrated strips includes a straight serrated strip and an angled serrated strip. Each of the straight serrated strips is fixed to the other end of the corresponding straight heat dissipation baffle, and each of the angled serrated strips is fixed to the other end of the corresponding angled heat dissipation baffle.

8. The multifunctional heat dissipation fin according to claim 7, characterized in that: Each of the straight heat dissipation baffles is connected to the corresponding bent-angle heat dissipation baffles, and each of the straight serrated strips is connected to the corresponding bent-angle serrated strips.

9. A radiator for a battery pack, characterized in that: The invention comprises the multifunctional heat dissipation fin according to any one of claims 1 to 8.

10. A battery pack, characterized in that: A radiator for a battery pack comprising the method of claim 9.

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