Battery pack heat dissipation waterproof structure and battery pack

Abstract

The invention discloses a battery pack heat dissipation waterproof structure which comprises a shell and a heat dissipation assembly, a heat dissipation mounting cavity and a battery cell mounting cavity are formed in the shell, and the heat dissipation mounting cavity is communicated with the outside of the shell; the heat dissipation assembly comprises an air cooling driving piece and a waterproof heat dissipation piece, the air cooling driving piece is installed on the shell, and the air cooling driving piece is located in the heat dissipation installation cavity; the waterproof heat dissipation piece is connected to the shell in a sealing manner and is positioned between the heat dissipation mounting cavity and the battery cell mounting cavity, so that the battery cell mounting cavity and the heat dissipation mounting cavity are mutually isolated to form an independent space, and water can be prevented from entering the battery pack; meanwhile, the heat of the battery pack can be intensively absorbed to the waterproof heat dissipation piece firstly, then air is pushed to flow through the air cooling driving piece located in the heat dissipation installation cavity, and the heat on the heat dissipation installation cavity is taken away in an accelerated mode. Therefore, the waterproof and heat dissipation effects of the battery pack can be improved, the safety of the battery pack is further improved, meanwhile, the structure is simple, and the cost can be further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to a battery pack heat dissipation and waterproof structure and a battery pack. Background Art

[0002] With the rapid development of new energy vehicles, portable electronic devices and energy storage systems, higher requirements are placed on the efficient heat dissipation performance of battery packs. Especially in high-temperature working environments, if the battery pack cannot be cooled in time, it will not only lead to a decline in battery performance, but may also cause safety issues such as thermal runaway.

[0003] The traditional heat dissipation methods of battery packs mainly include natural heat dissipation and air cooling. The natural heat dissipation method mainly relies on the heat exchange between the battery pack shell and the external environment, but the heat dissipation speed of this method is slow and it is difficult to meet the needs of battery packs with high heat dissipation requirements. The air cooling method accelerates the heat dissipation by adding heat dissipation devices such as fans to improve the heat dissipation efficiency. However, the use of air cooling requires that the air cooling heat dissipation structure has a high waterproof performance. However, the waterproof performance of existing air-cooled battery packs is poor. At the same time, in order to achieve the waterproof function, the existing air-cooled battery packs are usually complex in structure, require special sealing and protection, and are costly. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a battery pack heat dissipation and waterproof structure and a battery pack with a simple structure and better waterproof effect.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A battery pack heat dissipation and waterproof structure comprises: a shell and a heat dissipation component, the shell is formed with a heat dissipation installation cavity and a battery cell installation cavity, the heat dissipation installation cavity is communicated with the outside of the shell; the heat dissipation component comprises an air-cooling drive component and a waterproof heat dissipation component, the air-cooling drive component is installed on the shell, and the air-cooling drive component is located in the heat dissipation installation cavity; the waterproof heat dissipation component is sealed and connected to the shell and is located between the heat dissipation installation cavity and the battery cell installation cavity, so that the battery cell installation cavity and the heat dissipation installation cavity are isolated from each other to form an independent space, the waterproof heat dissipation component can conduct heat from the battery cell installation cavity to the heat dissipation installation cavity, and the air-cooling drive component can dissipate heat from the heat dissipation installation cavity to the outside of the shell.

[0007] In one of the embodiments, an isolation bracket is provided in the outer shell, the isolation bracket is used to separate the heat dissipation installation cavity and the battery cell installation cavity, and a connecting hole is opened on the isolation bracket, the waterproof heat dissipation component is installed on the isolation bracket, and the waterproof heat dissipation component closes the connecting hole.

[0008] In one embodiment, the isolation bracket includes an isolation portion and a mounting support portion, one end of the mounting support portion is arranged on a side edge of the isolation portion, and the other end of the mounting support portion extends in a direction away from the isolation portion, and one side surface of the mounting support portion is abutted against the inner wall of the outer shell.

[0009] In one of the embodiments, the waterproof heat dissipation component includes a radiator and a waterproof sealing layer, a waterproof mounting plate is provided on a side surface of the radiator away from the heat dissipation mounting cavity, the waterproof mounting plate is installed on the isolation bracket, and the waterproof mounting plate closes the connecting hole; the waterproof sealing layer is located between the isolation bracket and the waterproof mounting plate.

[0010] In one of the embodiments, a heat sink structure is provided on a side surface of the radiator close to the heat dissipation installation cavity, a avoidance groove is opened on the heat sink structure, and the air-cooled driving component is at least partially located in the avoidance groove.

[0011] In one of the embodiments, a heat dissipation hole is opened on the side wall of the shell, and the heat dissipation hole is connected to the heat dissipation installation cavity.

[0012] In one of the embodiments, a portion of the edge of the heat dissipation hole is flush with the bottom surface of the heat dissipation installation cavity, or a portion of the edge of the heat dissipation hole is lower than the bottom surface of the heat dissipation installation cavity.

[0013] In one embodiment, the air-cooled drive component includes a cooling fan, a cooling mounting hole is opened on the outer shell, the cooling mounting cavity is connected to the cooling mounting hole so that the cooling mounting cavity is connected to the outside of the outer shell, and the cooling fan is installed on the cooling mounting hole.

[0014] In one of the embodiments, the air-cooling drive component further includes a fan protection cover, and the fan protection cover is arranged on a side surface of the heat dissipation fan away from the heat dissipation installation cavity.

[0015] In one of the embodiments, the air-cooling drive component is detachably mounted on the housing.

[0016] In one of the embodiments, the air-cooling driving component is detachably mounted on the housing via a screw connection.

[0017] A battery pack comprises the above-mentioned battery pack heat dissipation and waterproof structure.

[0018] Compared with the prior art, the present invention has at least the following advantages:

[0019] The heat dissipation and waterproof structure of the battery pack of the present invention forms a heat dissipation installation cavity and a battery cell installation cavity on the outer shell, and arranges a waterproof heat dissipation component between the heat dissipation installation cavity and the battery cell installation cavity, so that the battery cell installation cavity and the heat dissipation installation cavity are isolated from each other to form an independent space, that is, the battery cell installation cavity will not be affected by the heat dissipation installation cavity, so as to prevent moisture from entering the interior of the battery pack; at the same time, the heat of the battery pack will be first concentrated and absorbed by the waterproof heat dissipation component, and the heat will be dissipated into the heat dissipation installation cavity through the waterproof heat dissipation component, and then the air flow will be promoted by the air-cooled driving component located in the heat dissipation installation cavity, so as to further accelerate the removal of heat from the heat dissipation installation cavity and improve the heat dissipation effect. In this way, not only the waterproof effect can be improved, but also the heat dissipation effect can be improved, thereby improving the safety of the battery pack. At the same time, the overall structure of the heat dissipation and waterproof structure of the battery pack of the present invention is simple, which can further reduce the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below.

[0021] Figure 1 A schematic diagram of a heat dissipation and waterproof structure of a battery pack and an exploded structure of a battery pack in one embodiment of the present invention;

[0022] Figure 2 It is a schematic diagram of a cross-sectional structure of a battery pack heat dissipation and waterproof structure and a battery pack in one embodiment of the present invention;

[0023] Figure 3 A schematic diagram of a cross-sectional structure of a battery pack heat dissipation and waterproof structure and a battery pack from another viewing angle in one embodiment of the present invention; DETAILED DESCRIPTION

[0024] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings.

[0025] See also Figure 1 , Figure 2 and Figure 3As shown, a battery pack heat dissipation waterproof structure 10 includes: a shell 100 and a heat dissipation component 200, the shell 100 is formed with a heat dissipation installation cavity 110 and a battery cell installation cavity 120, the heat dissipation installation cavity 110 is connected to the outside of the shell 100; the heat dissipation component 200 includes an air-cooling drive component 210 and a waterproof heat dissipation component 220, the air-cooling drive component 210 is installed on the shell 100, and the air-cooling drive component 210 is located in the heat dissipation installation cavity 110; the waterproof heat dissipation component 220 is sealed and connected to the shell 100 and is located between the heat dissipation installation cavity 110 and the battery cell installation cavity 120, so that the battery cell installation cavity 120 and the heat dissipation installation cavity 110 are isolated from each other to form an independent space, the waterproof heat dissipation component 220 can conduct heat from the battery cell installation cavity 120 to the heat dissipation installation cavity 110, and the air-cooling drive component 210 can dissipate heat from the heat dissipation installation cavity to the outside of the shell 100.

[0026] It should be noted that the heat dissipation and waterproof structure 10 of the battery pack adopts a layered design structure, that is, a heat dissipation installation cavity 110 and a battery cell installation cavity 120 are formed on the outer shell 100, wherein the heat dissipation installation cavity 110 can be connected to the outside of the outer shell 100, so that the air-cooled driving component 210 in the heat dissipation installation cavity 110 can promote air flow and accelerate heat dissipation. Specifically, by arranging the waterproof heat dissipation component 220 between the heat dissipation installation cavity 110 and the battery cell installation cavity 120, the battery cell installation cavity 120 and the heat dissipation installation cavity 110 are isolated from each other and form an independent space, that is, the battery cell installation cavity 120 is an independent waterproof and enclosed space, so that the battery cell installation cavity 120 will not be affected by the heat dissipation installation cavity 110, thereby preventing moisture from entering the interior of the battery pack, thereby improving the safety of the battery pack;

[0027] Furthermore, it should be noted that the waterproof heat sink 220 is mainly used to absorb the heat of the battery pack, so that the heat of the battery pack is first concentrated on the waterproof heat sink 220, that is, the heat is transferred from the battery cell mounting cavity 120 to the heat dissipation mounting cavity 110 through the waterproof heat sink, so as to ensure the rapid heat dissipation of the battery pack, and then the air-cooled driving member 210 located in the heat dissipation mounting cavity 110 promotes the air flow to further accelerate the removal of the heat from the heat dissipation mounting cavity 110, so as to further improve the heat dissipation effect. In this way, the present invention adopts a layered design structure for the heat dissipation mounting cavity 110 and the battery cell mounting cavity 120, so as to not only solve the problem of sealing and waterproofing of the air-cooled battery pack, but also improve the waterproof effect and the heat dissipation effect, so as to improve the safety of the battery pack; at the same time, the overall design and manufacture of the battery pack heat dissipation waterproof structure 10 of the present invention are relatively simple, so compared with the existing complex waterproof heat dissipation structure, it can further reduce the cost.

[0028] Please combine Figure 1 and Figure 3As shown, in one embodiment, an isolation bracket 130 is provided in the housing 100, and the isolation bracket 130 is used to separate the heat dissipation installation cavity 110 and the battery cell installation cavity 120, and a connecting hole 131 is opened on the isolation bracket 130, and the waterproof heat dissipation component 220 is installed on the isolation bracket 130, and the waterproof heat dissipation component closes the connecting hole 131.

[0029] It should be noted that, by arranging an isolation bracket 130 in the outer shell 100, the inner cavity of the outer shell 100 is separated into a heat dissipation installation cavity 110 and a battery cell installation cavity 120 through the isolation bracket 130, and a connecting hole 131 is opened on the isolation bracket 130, so that the waterproof heat dissipation component 220 can be installed on the isolation bracket 130 through the connecting hole 131, and the waterproof heat dissipation component 220 can connect the heat dissipation installation cavity 110 and the battery cell installation cavity 120, and the connecting hole 131 is closed by the waterproof heat dissipation component 220, so that the battery cell installation cavity 120 forms an independent waterproof sealed space. Furthermore, in this embodiment, the waterproof heat sink 220 can be installed on the isolation bracket 130 by means of screws or bolts. At the same time, in order to further improve the waterproof performance and prevent water from entering the battery cell installation cavity 120 through the gaps of the screws, preferably, the screws are waterproof screws 222 or waterproof bolts. For example, a sealing gasket is sleeved on the waterproof screw 222 or the waterproof bolt. When the waterproof screw 222 or the waterproof bolt is tightened, the sealing gasket is squeezed and deformed, thereby filling the gap in the connection area to form a sealed waterproof layer. In one embodiment, in order to further improve the installation stability between the waterproof heat dissipation element 220 and the isolation bracket 130, a plurality of mounting protrusions 132 are provided on a side surface of the isolation bracket 130 away from the battery cell installation cavity 120, and each mounting protrusion 132 is provided with a mounting hole on the side facing the battery cell installation cavity 120, and the mounting hole is a blind hole structure, and a waterproof screw 222 is installed on the mounting hole to form a connection between the waterproof heat dissipation element 220 and the isolation bracket 130. In this way, by installing the protrusion 132, the contact area between the waterproof screw 222 and the isolation bracket 130 can be further increased, thereby further improving the installation stability between the waterproof heat dissipation element 220 and the isolation bracket 130; at the same time, the mounting hole adopts a blind hole structure, thereby further preventing water from entering the battery cell installation cavity 120 through the mounting hole, thereby further ensuring the sealing and waterproofness of the battery cell installation cavity 120.

[0030] Furthermore, the isolation bracket 130 includes an isolation portion 134 and a mounting support portion 133, one end of the mounting support portion 133 is arranged on a side edge of the isolation portion 134, and the other end of the mounting support portion 133 extends in a direction away from the isolation portion 134, and one side of the mounting support portion 133 abuts against the inner side wall of the shell. That is, the contact area between the isolation bracket 130 and the shell is increased by the mounting support portion 133, thereby ensuring the stability of the connection between the isolation bracket 130 and the shell. In this embodiment, the mounting support portion 133 is provided with two sides, and each of the mounting support portions 133 is respectively arranged on the two side edges of the isolation portion 134 to further ensure the installation stability of the isolation bracket 130; for example, the mounting support portion 133 and the isolation portion 134 are formed into an integrally formed structure using a bending molding process to improve the overall structural strength of the isolation bracket 130.

[0031] In order to further ensure the sealing and waterproof performance of the battery cell installation cavity 120, in one embodiment, the isolation bracket 130 and the shell 100 are designed as an integrated structure, so as to prevent water from penetrating the connection gap between the isolation bracket 130 and the shell 100 and entering the battery cell installation cavity 120. For example, when the isolation bracket 130 and the shell 100 are both made of metal, the isolation bracket 130 and the shell 100 can be connected by welding and sealing. The welding sealing structure can fill the connection gap between the isolation bracket 130 and the shell 100, thereby playing a sealing and waterproof role, and can also ensure the connection firmness between the isolation bracket 130 and the shell 100; for another example, the isolation bracket 130 and the shell 100 can be sealed and connected by sealant, so that the connection gap between the isolation bracket 130 and the shell 100 can also be filled by sealant to ensure the sealing and waterproof performance of the battery cell installation cavity 120.

[0032] Furthermore, in order to improve the heat dissipation effect of the battery pack heat dissipation waterproof structure 10, in one embodiment, the shell 100 adopts a heat dissipation metal shell 100, such as aluminum alloy.

[0033] See also Figure 1 and Figure 3 As shown, in one embodiment, the waterproof heat dissipation element 220 includes a radiator 221 and a waterproof sealing layer. A waterproof mounting plate 221a is provided on a side surface of the radiator 221 away from the heat dissipation mounting cavity 110. The waterproof mounting plate 221a is installed on the isolation bracket 130, and the waterproof mounting plate 221a closes the connecting hole 131; the waterproof sealing layer is located between the isolation bracket 130 and the waterproof mounting plate 221a.

[0034] It should be noted that the radiator 221 is used to absorb the heat of the battery pack and dissipate the heat. In this way, the heat of the battery pack can be first concentrated on the radiator 221, and then the air flow is promoted by the air-cooling drive 210 to accelerate the removal of the heat on the radiator 221. Furthermore, when installing the radiator 221, the waterproof mounting plate 221a on the radiator 221 is abutted against a side of the isolation bracket 130 away from the heat dissipation mounting cavity 110. For example, the waterproof mounting plate 221a and the isolation bracket 130 can be connected and fixed by a waterproof screw. At the same time, in order to further improve the waterproof effect and ensure the sealing and waterproof performance of the battery cell mounting cavity 120, the connecting hole 131 is closed by the waterproof mounting plate 221a, so that the battery cell mounting cavity 120 forms an independent waterproof sealed space, and at the same time, a waterproof sealing layer is arranged between the isolation bracket 130 and the waterproof mounting plate 221a, and then the connecting gap between the isolation bracket 130 and the waterproof mounting plate 221a is filled by the waterproof sealing layer. For example, the waterproof sealing layer is a sealing glue or a sealing gasket, and the waterproof sealing layer is arranged around the periphery of the connecting hole 131.

[0035] Furthermore, in one embodiment, a heat sink structure is provided on one side of the heat sink 221 close to the heat dissipation installation cavity 110, and a avoidance groove 221b is provided on the heat sink structure, and the air-cooled driving component 210 is at least partially located in the avoidance groove 221b. The heat sink structure is formed by a plurality of heat sinks arranged in sequence, and the avoidance groove 221b is provided on the heat sink structure, which can increase the ventilation space and improve the heat dissipation effect; at the same time, the air-cooled driving component 210 is at least partially located in the avoidance groove 221b, which can not only make the overall structure of the heat dissipation and waterproof structure of the battery pack more compact, but also enable the air-cooled driving component 210 to accelerate the removal of heat from the heat sink 221 and the heat dissipation installation cavity 110, thereby improving the heat dissipation efficiency.

[0036] See also Figure 1 and Figure 3 As shown, in order to further improve the heat dissipation effect and increase the ventilation between the heat dissipation installation cavity 110 and the outside, in one embodiment, a heat dissipation hole 150 is opened on the side wall of the housing 100, and the heat dissipation hole 150 is connected to the heat dissipation installation cavity 110. For example, a plurality of heat dissipation holes 150 are opened and distributed in an array on the side wall of the housing 100, and the air-cooled driving component 210 is arranged on the top of the heat dissipation installation cavity 110 and aligned with the waterproof heat dissipation component 220. At the same time, the heat dissipation hole 150 is opened on the side of the heat dissipation installation cavity 110, so that air can flow from multiple directions. Then, the ventilation space of the heat dissipation installation cavity 110 can be increased, so that the heat dissipation air duct is smooth and unobstructed, thereby further accelerating the heat dissipation speed and improving the heat dissipation effect.

[0037] See also Figure 3As shown, during use, water usually enters the heat dissipation installation cavity 110. In order to facilitate drainage of the heat dissipation installation cavity 110 and avoid water accumulation in the heat dissipation installation cavity 110, in one embodiment, the edge of the heat dissipation hole 150 is partially flush with the bottom surface of the heat dissipation installation cavity 110, or the edge of the heat dissipation hole 150 is partially lower than the bottom surface of the heat dissipation installation cavity 110, so that the water in the heat dissipation installation cavity 110 can be discharged through the heat dissipation hole 150. It should also be noted that the edge of the heat dissipation hole 150 is partially flush with the bottom surface of the heat dissipation installation cavity 110, or the edge of the heat dissipation hole 150 is partially lower than the bottom surface of the heat dissipation installation cavity 110, which means that the edge of one end of the heat dissipation hole 150 close to the isolation bracket 130 is partially flush with the side of the isolation bracket 130 facing the heat dissipation installation cavity 110, or the edge of one end of the heat dissipation hole 150 close to the isolation bracket 130 is partially lower than the side of the isolation bracket 130 facing the heat dissipation installation cavity 110. At the same time, it should be noted that the edge of one end of the heat dissipation hole 150 cannot exceed the side of the isolation bracket 130 away from the heat dissipation installation cavity 110 to avoid affecting the sealing of the battery cell installation cavity 120. In this way, the water on the bottom surface of the heat dissipation installation cavity 110 can be discharged through the heat dissipation hole 150.

[0038] In one embodiment, the air-cooled driving member 210 includes a heat dissipation fan 211, a heat dissipation installation hole 140 is provided on the housing 100, the heat dissipation installation cavity 110 is communicated with the heat dissipation installation hole 140, so that the heat dissipation installation cavity 110 is communicated with the outside of the housing 100, and the heat dissipation fan 211 is installed on the heat dissipation installation hole 140. The operation of the heat dissipation fan 211 promotes the flow of air, thereby accelerating the removal of heat from the waterproof heat dissipation member 220. Furthermore, a mounting protrusion is provided around the heat dissipation installation hole 140, and the heat dissipation fan 211 is installed on the mounting protrusion.

[0039] Furthermore, in order to prevent foreign matter from entering the interior of the heat dissipation installation cavity 110 through the heat dissipation fan 211, the air-cooled driving member 210 further includes a fan protection cover 212, which is disposed on a side surface of the heat dissipation fan 211 away from the heat dissipation installation cavity 110. The fan protection cover 212 is provided with a plurality of ventilation holes to prevent foreign matter from entering the heat dissipation installation cavity 110 while achieving ventilation and heat dissipation. For example, the fan protection cover 212 can be connected to the heat dissipation fan 211 by means of screws or screws, so that the fan protection cover 212 can be disassembled, replaced or cleaned.

[0040] Usually, the air-cooled drive component 210 will age or be damaged after long-term use. In order to facilitate the repair and replacement of the battery pack heat dissipation and waterproof structure 10 and reduce the difficulty and cost of maintenance, in one embodiment, the air-cooled drive component 210 is detachably arranged on the housing 100. That is, the air-cooled drive component 210 is modularly designed and can be replaced or maintained independently, so as to facilitate the replacement and repair of the air-cooled drive component 210. In this embodiment, the air-cooled drive component 210 is detachably arranged on the housing 100 by screw connections, such as screw connections such as screws or bolts. In this way, the air-cooled drive component 210 can be disassembled and installed by an ordinary screwdriver. In another embodiment, the air-cooled drive component 210 can also be installed on the housing 100 by means of a detachable snap connection. For example, an elastic card block is provided on the air-cooled drive component 210, and a card slot is provided on the housing 100. During installation, the air-cooled drive component 210 is connected to the housing 100 by inserting the elastic card block into the card slot. During disassembly, the air-cooled drive component 210 only needs to be pressed or pulled up to disengage the elastic card block from the card slot, thereby achieving separation of the air-cooled drive component 210 from the housing 100.

[0041] A battery pack includes the above-mentioned battery pack heat dissipation waterproof structure 10, that is, the battery pack heat dissipation waterproof structure 10 is installed on the battery pack, the battery cell installation cavity 120 is located on the side close to the battery pack to prevent water from entering the battery pack, and the heat dissipation installation cavity 110 is located on the side away from the battery pack, and the waterproof heat dissipation member 220 is used to connect and separate the battery cell installation cavity 120 and the heat dissipation installation cavity 110, so that the battery cell installation cavity 120 and the heat dissipation installation cavity 110 form a mutually independent space, and at the same time, the heat of the battery pack can be concentratedly absorbed by the waterproof heat dissipation member 220, and then the air-cooling driving member 210 on the heat dissipation installation cavity 110 promotes air flow to accelerate the removal of heat from the waterproof heat dissipation member 220. In this way, the heat dissipation effect and the waterproof effect can be improved at the same time.

[0042] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the invention 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 invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached claims.

Claims

1. A battery pack heat dissipation and waterproof structure, characterized in that: include: A housing, wherein a heat dissipation installation cavity and a battery cell installation cavity are formed on the housing, and the heat dissipation installation cavity is communicated with the outside of the housing; and A heat dissipation component, the heat dissipation component includes an air-cooled drive component and a waterproof heat dissipation component, the air-cooled drive component is installed on the shell, and the air-cooled drive component is located in the heat dissipation installation cavity; the waterproof heat dissipation component is sealed and connected to the shell and is located between the heat dissipation installation cavity and the battery cell installation cavity, so that the battery cell installation cavity and the heat dissipation installation cavity are isolated from each other to form an independent space, the waterproof heat dissipation component can conduct heat from the battery cell installation cavity to the heat dissipation installation cavity, and the air-cooled drive component can dissipate heat from the heat dissipation installation cavity to the outside of the shell.

2. The battery pack heat dissipation and waterproof structure according to claim 1, characterized in that: An isolation bracket is arranged in the shell, and the isolation bracket is used to separate the heat dissipation installation cavity and the battery cell installation cavity. A connecting hole is opened on the isolation bracket, and the waterproof heat dissipation component is installed on the isolation bracket, and the waterproof heat dissipation component closes the connecting hole.

3. The battery pack heat dissipation and waterproof structure according to claim 2, characterized in that: The isolation bracket includes an isolation portion and an installation support portion, one end of the installation support portion is arranged on a side edge of the isolation portion, and the other end of the installation support portion extends in a direction away from the isolation portion, and a side surface of the installation support portion is abutted against the inner wall of the shell.

4. The battery pack heat dissipation and waterproof structure according to claim 2, characterized in that: The waterproof heat dissipation component includes a radiator and a waterproof sealing layer. A waterproof mounting plate is provided on a side surface of the radiator away from the heat dissipation mounting cavity. The waterproof mounting plate is installed on the isolation bracket, and the waterproof mounting plate closes the connecting hole; the waterproof sealing layer is located between the isolation bracket and the waterproof mounting plate.

5. The battery pack heat dissipation and waterproof structure according to claim 4, characterized in that: A heat sink structure is arranged on one side surface of the radiator close to the heat dissipation installation cavity, a avoidance groove is opened on the heat sink structure, and the air-cooling driving component is at least partially located in the avoidance groove.

6. The battery pack heat dissipation and waterproof structure according to claim 1, characterized in that: A heat dissipation hole is provided on the side wall of the shell, and the heat dissipation hole is communicated with the heat dissipation installation cavity.

7. The battery pack heat dissipation and waterproof structure according to claim 6, characterized in that: The edge of the heat dissipation hole is partially flush with the bottom surface of the heat dissipation installation cavity, or the edge of the heat dissipation hole is partially lower than the bottom surface of the heat dissipation installation cavity.

8. The battery pack heat dissipation and waterproof structure according to any one of claims 1 to 7, characterized in that: The air-cooled drive component includes a heat dissipation fan, a heat dissipation mounting hole is opened on the shell, the heat dissipation mounting cavity is connected with the heat dissipation mounting hole, so that the heat dissipation mounting cavity is connected with the outside of the shell, and the heat dissipation fan is installed on the heat dissipation mounting hole.

9. The battery pack heat dissipation and waterproof structure according to claim 8, characterized in that: The air-cooling drive component further comprises a fan protection cover, and the fan protection cover is arranged on a side surface of the heat dissipation fan away from the heat dissipation installation cavity.

10. The battery pack heat dissipation and waterproof structure according to any one of claims 1 to 7, characterized in that: The air-cooling driving component is detachably arranged on the housing.

11. The battery pack heat dissipation and waterproof structure according to claim 10, characterized in that: The air-cooling driving component is detachably arranged on the housing through a screw connection component.

12. A battery pack, characterized in that: A battery pack heat dissipation and waterproof structure comprising any one of claims 1-11.

Images