Battery box body and energy storage cabinet

Abstract

The utility model relates to the technical field of new energy batteries, and discloses a battery box body and an energy storage cabinet. According to the battery box body, the heat dissipation effect of the main chamber can be remarkably enhanced, stable operation of electrical elements in the main chamber is ensured, the service life of the electrical elements in the battery box body is prolonged, and potential safety hazards are eliminated. The battery box comprises a main chamber, a heat dissipation chamber, a main chamber air supply piece and a heat dissipation piece, the main chamber is a closed chamber, the heat dissipation chamber is connected with the outer wall of the main chamber and communicated with the outside, the main chamber air supply piece is arranged in the main chamber and used for accelerating air flow in the main chamber, and the heat dissipation piece is arranged in the main chamber. The heat dissipation piece is arranged at the connecting position of the main cavity and the heat dissipation cavity.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy batteries, and particularly relates to a battery box body and an energy storage cabinet. Background Technique

[0002] A battery box body (such as an energy storage container, an integrated cabinet, etc.) is an important component in an energy storage product, and the performance of the battery box body plays a crucial role in the stable operation of the entire energy storage product. The main functions of the battery box body are to control the on-off of the entire battery cluster, detect the states of the battery packs in the entire cluster, and at the same time have functions such as busbar connection, etc., and it is one of the cores of the energy storage product.

[0003] In order to achieve a high protection level for the existing battery box body, such as an IP65 protection level, the sealing performance of the battery box body needs to be high, but this will affect the heat dissipation performance of the battery box body. In order to dissipate heat from the electrical components inside the battery box body, a fan is arranged inside the battery box body for internal circulation heat dissipation. However, this heat dissipation method has poor effects, and the temperatures of the fuse and copper busbar at the end of the working condition of the battery box body are still relatively high, which will affect the stable operation of the high-voltage box and there are certain potential safety hazards. Content of the Utility Model

[0004] In view of this, the utility model provides a battery box body and an energy storage cabinet to solve the problems that the existing battery box body has poor heat dissipation effect in order to ensure a high protection level, affects stable operation, and has potential safety hazards.

[0005] In the first aspect, the utility model provides a battery box body, including:

[0006] A main chamber, which is formed into a closed chamber surrounded by a plurality of box body walls;

[0007] A heat dissipation chamber, which is at least partially connected to the box body wall, and the heat dissipation chamber is communicated with the outside;

[0008] A main chamber air supply member, which is arranged in the main chamber, and the main chamber air supply member is used to accelerate the air flow in the main chamber;

[0009] A heat dissipation member, which is arranged at the connection position between the main chamber and the heat dissipation chamber, and the heat dissipation member is used to increase the heat exchange area between the main chamber and the heat dissipation chamber.

[0010] Beneficial effects: For the battery box body of the present utility model, the main chamber is enclosed, the heat dissipation chamber is communicated with the outside, the heat dissipation chamber is connected to the outer wall of the main chamber, a main chamber air supply member is arranged inside the main chamber, and the main chamber air supply member is used to realize the internal circulation heat dissipation inside the main chamber. The heat dissipation chamber can perform external circulation heat dissipation on the main chamber. Through the above internal circulation heat dissipation and external circulation heat dissipation, the heat dissipation effect of the main chamber can be significantly enhanced. Moreover, a heat dissipation member is arranged at the connection position between the main chamber and the heat dissipation chamber. The heat dissipation member can increase the heat exchange area between the main chamber and the heat dissipation chamber, and utilize the temperature difference between the main chamber and the heat dissipation chamber to further dissipate heat from the main chamber, thereby effectively reducing the temperature inside the main chamber, ensuring the stable operation of the electrical components inside the main chamber, increasing the service life of the electrical components inside the battery box body, and eliminating potential safety hazards. In addition, the above internal circulation heat dissipation and external circulation heat dissipation processes do not affect the sealing performance of the main chamber, and the main chamber can still remain closed, thus ensuring the protection level of the main chamber.

[0011] In a second aspect, the present utility model provides an energy storage cabinet, including the battery box body as described above. The heat dissipation member in the battery box body is a heat dissipation fin, and the spacing range of the heat dissipation fins is [3 mm, 12 mm].

[0012] Since the energy storage cabinet of the present utility model includes the battery box body of the present utility model and has the same beneficial effects as the battery box body, it will not be elaborated here. Moreover, the spacing range of the heat dissipation fins is [3 mm, 12 mm]. Within the above spacing range, the arrangement of the heat dissipation fins makes full use of the installation space and can achieve the optimal heat dissipation effect. Description of the Drawings

[0013] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0014] Figure 1 It is the overall schematic diagram of the battery box body of the present utility model;

[0015] Figure 2 It is the internal schematic diagram of the battery box body of the present utility model;

[0016] Figure 3 It is the exploded schematic diagram of the battery box body of the present utility model Figure 1 ;

[0017] Figure 4 It is the exploded schematic diagram of the battery box body of the present utility model Figure 2 。

[0018] Description of the reference numerals in the drawings:

[0019] 1. Main chamber; 101. Mounting through-hole;

[0020] 2. Heat dissipation chamber; 201. Ventilation hole;

[0021] 301. First main chamber air supply member; 302. Second main chamber air supply member; 303. Third main chamber air supply member; 304. Fourth main chamber air supply member; 305. Fifth main chamber air supply member;

[0022] 4. Heat dissipation member;

[0023] 5. Heat dissipation chamber air supply member;

[0024] 6. Flow guide member; 601. First flow guide portion; 602. Second flow guide portion. Detailed implementation manners

[0025] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] The following will describe an embodiment of the battery box of the present utility model in conjunction with Figures 1-4 ,

[0027] According to an embodiment of the present utility model, on the one hand, a battery box is provided, including: a main chamber 1, a heat dissipation chamber 2, a main chamber air supply member, and a heat dissipation member 4. The main chamber 1 is formed into a closed chamber surrounded by a plurality of box walls. The heat dissipation chamber 2 is at least partially connected to the box walls, and the heat dissipation chamber 2 communicates with the outside. The main chamber air supply member is disposed in the main chamber 1 and is used to accelerate the air flow in the main chamber 1. The heat dissipation member 4 is disposed at the connection position between the main chamber 1 and the heat dissipation chamber 2 and is used to increase the heat exchange area between the main chamber 1 and the heat dissipation chamber 2.

[0028] For this battery box, the main chamber 1 is enclosed, the heat dissipation chamber 2 is in communication with the outside, the heat dissipation chamber 2 is connected to the outer wall of the main chamber 1, a main chamber air supply member is provided inside the main chamber 1, and the main chamber air supply member is used to realize the internal circulation heat dissipation inside the main chamber 1. The heat dissipation chamber 2 can perform external circulation heat dissipation on the main chamber 1. Through the above internal circulation heat dissipation and external circulation heat dissipation, the heat dissipation effect of the main chamber 1 can be significantly enhanced. Moreover, a heat dissipation member 4 is also provided at the connection position between the main chamber 1 and the heat dissipation chamber 2. The heat dissipation member 4 can increase the heat exchange area between the main chamber 1 and the heat dissipation chamber 2, and utilize the temperature difference between the main chamber 1 and the heat dissipation chamber 2 to realize further heat dissipation of the main chamber 1, thereby effectively reducing the internal temperature of the main chamber 1, ensuring the stable operation of the electrical components inside the main chamber 1, improving the service life of the electrical components inside the battery box, and eliminating potential safety hazards. In addition, the above internal circulation heat dissipation and external circulation heat dissipation processes do not affect the sealing performance of the main chamber 1, and the main chamber 1 can still remain closed, thereby ensuring the protection level of the main chamber 1.

[0029] The main chamber 1 of the battery box is mainly used to install and accommodate electrical components to achieve corresponding electrical functions. Taking the battery box as a high-voltage box as an example, a switching power supply, a pre-charge resistor, a BMS (Battery Management System), a busbar connector, a plug-in terminal, a switch button, an indicator light, a connector, a fuse, a diode, and a switch, etc. can be provided inside the main chamber 1. For the stable operation of the electrical components inside the main chamber 1, the main chamber 1 is formed into a sealed chamber surrounded by multiple box walls, and has a relatively high sealing performance. The protection level of the main chamber 1 needs to reach IP65. Since various electrical components are provided inside the main chamber 1 and the sealing performance is relatively high, the heat generated by the electrical components during operation needs to be dissipated in a timely and effective manner to ensure the normal operation of each electrical component. In this embodiment, the main chamber 1 is a cuboid chamber.

[0030] The heat dissipation chamber 2 is used to enhance the heat dissipation of the main chamber 1. The heat dissipation chamber 2 is at least connected to a part of the box wall of the main chamber 1. In this embodiment, the heat dissipation chamber 2 is also a cuboid chamber, and the heat dissipation chamber 2 is connected to the box wall of the main chamber 1 with a smaller area, so that the overall structure of the battery box is compact and the volume is small. The heat dissipation chamber 2 can be connected to the box wall of the main chamber 1 through fasteners such as bolts.

[0031] The heat dissipation component 4 is arranged at the connection position between the main chamber 1 and the heat dissipation chamber 2. The heat dissipation component 4 is used to increase the heat exchange area between the main chamber 1 and the heat dissipation chamber 2, and can utilize the temperature difference between the main chamber 1 and the heat dissipation chamber 2 to further dissipate the heat of the main chamber 1, improving the heat dissipation effect. The heat dissipation chamber 2 is connected and in contact with the main chamber 1. The heat of the main chamber 1 will be transferred to the heat dissipation chamber 2, and the heat dissipation chamber 2 is communicated with the outside. The heat of the heat dissipation chamber 2 can be dissipated to the outside, and the relatively cold air outside can enter the heat dissipation chamber 2 to reduce the temperature of the heat dissipation chamber 2, and then reduce the temperature of the main chamber 1. At the same time, the heat dissipation component 4 can utilize the temperature difference between the main chamber 1 and the heat dissipation chamber 2 to enhance the heat dissipation effect, so as to achieve the purpose of strengthening the heat dissipation of the main chamber 1. The above process forms the external circulation heat dissipation of the main chamber 1.

[0032] The main chamber air supply component is arranged in the main chamber 1. The main chamber air supply component is used to accelerate the air flow in the main chamber 1. Through the main chamber air supply component, the air flow speed inside the main chamber 1 can be increased, so that the heat in the main chamber 1 is circulated for heat dissipation. The above process forms the internal circulation heat dissipation of the main chamber 1.

[0033] Through the above internal circulation heat dissipation and external circulation heat dissipation, the main chamber 1 of this embodiment can significantly enhance the heat dissipation effect of the main chamber 1, ensuring that the temperatures of the electrical components in the main chamber 1 will not be too high, enabling them to operate normally, and improving the safety and reliability of the battery box.

[0034] Furthermore, the main chamber 1 and the heat dissipation chamber 2 share at least one box body wall, and the heat dissipation component 4 is arranged on the shared box body wall of the main chamber 1 and the heat dissipation chamber 2.

[0035] The box body wall shared by the main chamber 1 and the heat dissipation chamber 2 is the shared box body wall. The heat dissipation component 4 is arranged on the shared box body wall to achieve the purpose of utilizing the temperature difference between the main chamber 1 and the heat dissipation chamber 2 and enhancing the heat dissipation effect.

[0036] Furthermore, the shared box body wall has an installation through hole 101, the heat dissipation component 4 is arranged in the installation through hole 101, and the heat dissipation component 4 is hermetically connected to the installation through hole 101.

[0037] Such as Figure 3 and Figure 4As shown, in this embodiment, the main chamber 1 and the heat dissipation chamber 2 share a box wall. The shared box wall of the main chamber 1 and the heat dissipation chamber 2 has an installation through hole 101. The size of the installation through hole 101 is not specifically limited and can be set according to the heat dissipation requirements of the main chamber 1 and the size of the heat dissipation component 4 to be installed. Specifically, the heat dissipation component 4 is a rectangular structure. Correspondingly, the installation through hole 101 is a rectangular through hole. The heat dissipation component 4 can be installed into the installation through hole 101. The heat dissipation component 4 can be installed into the installation through hole 101 by fasteners such as bolts, but it should be ensured that the heat dissipation component 4 is hermetically connected to the installation through hole 101. That is to say, after the heat dissipation component 4 is installed into the installation through hole 101, the inside of the main chamber 1 is still a closed space and maintains its sealing performance. The setting of the heat dissipation component 4 does not affect the protection level of the main chamber 1.

[0038] To improve the heat dissipation effect, the side of the heat dissipation chamber 2 facing the heat dissipation component 4 has no box wall and is a hollow structure. After the heat dissipation component 4 is installed into the installation through hole 101, one side of the heat dissipation component 4 is placed inside the heat dissipation chamber 2, and the other side is placed inside the main chamber 1. The air temperature inside the heat dissipation chamber 2 is relatively low, while the air temperature inside the main chamber 1 is relatively high. The heat dissipation component 4 can increase the heat exchange area between the main chamber 1 and the heat dissipation chamber 2, utilize the temperature difference on both sides of it, accelerate the heat dissipation inside the main chamber 1, and improve the heat dissipation effect.

[0039] Furthermore, the heat dissipation component 4 adopts heat dissipation fins. The extending direction of the heat dissipation fins is set at an angle with the shared box wall. The extending length range of the heat dissipation fins is [35 cm, 45 cm]. The heat dissipation component 4 is a heat dissipation fin. Such heat dissipation fins are relatively easy to obtain and have a low cost, which is beneficial to controlling the overall manufacturing cost of the battery box.

[0040] In this embodiment, the shape of the heat dissipation fins is a rectangular sheet structure or a columnar structure, and the shared box wall of the main chamber 1 and the heat dissipation chamber 2 is set at an angle with the extending direction of the heat dissipation fins. Optionally, the extending direction of the heat dissipation fins is not perpendicular to the shared box wall of the main chamber 1 and the heat dissipation chamber 2, but is set at an acute angle or an obtuse angle. According to different needs, the extending length range of the heat dissipation fins can be 35 cm, 40 cm, 45 cm, etc.

[0041] In addition, the spacing range of the heat dissipation fins can be [3 mm, 12 mm]. For example, the spacing of the heat dissipation fins can be 3 mm, 9 mm, 12 mm, etc. Preferably, the spacing range of the heat dissipation fins is [5 mm, 10 mm]. For example, the spacing of the heat dissipation fins can be 5 mm, 8 mm, 10 mm, etc. Within the above spacing range, the arrangement of the heat dissipation fins makes full use of the setting space and can achieve the optimal heat dissipation effect.

[0042] Of course, in order to further improve the heat dissipation effect, the size of the heat dissipation member 4 should be as large as possible. Correspondingly, the size of the mounting through hole 101 should also be as large as possible. In this embodiment, the size of the mounting through hole 101 is slightly smaller than the size of the box wall of the main chamber 1 facing the heat dissipation chamber 2.

[0043] In other embodiments, in order to simplify the assembly and manufacturing process, the mounting through hole 101 may not be provided on the common box wall of the main chamber 1 and the heat dissipation chamber 2, and the heat dissipation member 4 is provided on both sides of the common box wall. That is, at this time, there are two heat dissipation members 4, and the two heat dissipation members 4 are provided on both sides of the common box wall to further improve the heat dissipation effect.

[0044] In other embodiments, in order to simplify the assembly and manufacturing process, the connecting positions of the main chamber 1 and the heat dissipation chamber 2 both have box walls. The box wall of the main chamber 1 does not have a mounting through hole 101, and the box wall of the heat dissipation chamber 2 is not a hollow structure. The heat dissipation member 4 can be clamped between the box wall of the heat dissipation chamber 2 and the box wall of the main chamber 1, which can also enhance the heat dissipation effect of the main chamber 1.

[0045] Furthermore, the projected area range of the heat dissipation member 4 on the common box wall is [60 cm 2 , 85 cm 2 .

[0046] The area of the heat dissipation member 4 should match the area size of the mounting through hole 101. The projected area of the heat dissipation member 4 on the common box wall can be 60 cm 2 , 70 cm 2 , 80 cm 2 , etc.

[0047] Furthermore, the battery box of this embodiment further includes a heat dissipation chamber air supply member 5. The heat dissipation chamber air supply member 5 is provided on the outer wall of the heat dissipation chamber 2, and the heat dissipation chamber air supply member 5 is used to accelerate the air flow between the heat dissipation chamber 2 and the outside.

[0048] The heat dissipation chamber 2 is in communication with the outside air. The hot air in the heat dissipation chamber 2 can be dissipated to the outside, and the cold air outside can also enter the heat dissipation chamber. In order to accelerate the above air flow speed, a heat dissipation chamber air supply member 5 is provided on the outer wall of the heat dissipation chamber 2. The heat dissipation chamber air supply member 5 can accelerate the speed of the hot air in the heat dissipation chamber 2 being dissipated to the outside to enhance the heat dissipation efficiency.

[0049] Specifically, the air supply member 5 for the heat dissipation chamber uses a fan, and the air supply member 5 for the heat dissipation chamber is arranged on the outer wall of the heat dissipation chamber 2 away from the main chamber 1 to facilitate air circulation. In addition, a plurality of ventilation holes 201 are also arranged on the outer wall of the heat dissipation chamber 2, and the ventilation holes 201 are also arranged on the outer wall of the heat dissipation chamber 2 away from the main chamber 1. The number of the ventilation holes 201 is not limited in this embodiment. The ventilation holes 201 are arranged at a certain distance from the air supply member 5 for the heat dissipation chamber to prevent the hot air extracted by the air supply member 5 for the heat dissipation chamber from directly entering the ventilation holes 201 and returning to the heat dissipation chamber 2.

[0050] Further, the battery box body of this embodiment further includes a flow guide member 6, and the flow guide member 6 is arranged in the main chamber 1 and is arranged close to the heat dissipation member 4.

[0051] As Figure 2 shown, a flow guide member 6 is also arranged in the main chamber 1, and the flow guide member 6 is used to guide the air flow direction inside the main chamber 1. In this embodiment, the flow guide member 6 is arranged close to the heat dissipation member 4, but there is a certain distance between the flow guide member 6 and the heat dissipation member 4. The flow guide member 6 can guide the relatively hot air in the main chamber 1 to the heat dissipation member 4, and heat exchange is carried out through the heat dissipation member 4 to quickly cool the relatively hot air.

[0052] Further, the flow guide member 6 includes a first flow guide portion 601 and a second flow guide portion 602. The first end of the first flow guide portion 601 is connected to the inner wall of the main chamber 1, and the second end is connected to the second flow guide portion 602. The first end of the second flow guide portion 602 is connected to the first flow guide portion 601, and the second end is a free end. The middle part of the second flow guide portion 602 is bent towards the first end of the first flow guide portion 601, and the free end is inclined towards the heat dissipation member 4.

[0053] In this embodiment, the flow guide member 6 is of a plate-like structure and is arranged perpendicular to the bottom of the main chamber 1. The flow guide member 6 should have a certain height to enhance the flow guiding effect.

[0054] Specifically, the flow guide member 6 includes a first flow guide portion 601 and a second flow guide portion 602, and the first flow guide portion 601 and the second flow guide portion 602 are connected to each other. The first flow guide portion 601 has a first end and a second end, and both the first end and the second end of the first flow guide portion 601 are end faces perpendicular to the bottom of the main chamber 1 of the first flow guide portion 601. Similarly, the second flow guide portion 602 also has a first end and a second end, and both the first end and the second end of the second flow guide portion 602 are end faces perpendicular to the bottom of the main chamber 1 of the second flow guide portion 602.

[0055] The first end of the first flow guide part 601 is connected to the inner wall of the main chamber 1, and the second end of the first flow guide part 601 is connected to the second flow guide part 602, that is, the second end of the first flow guide part 601 is connected to the first end of the second flow guide part 602. The second end of the second flow guide part 602 is a free end, and this free end is not connected to other structures.

[0056] Specifically, the first flow guide part 601 is a straight plate structure, while the second flow guide part 602 is a bent plate structure. The extending direction of the first flow guide part 601 is parallel to the outer wall of the main chamber 1 facing the heat dissipation chamber 2. The middle part of the second flow guide part 602 bends towards the first end of the first flow guide part 601, making its free end tilt towards the heat dissipation part 4. That is, the part of the second flow guide part 602 close to its free end is not parallel to the first flow guide part 601, and the free end of the second flow guide part 602 is closer to the heat dissipation part 4 than the middle part of the second flow guide part 602. The second flow guide part 602 can guide the relatively hot air to the space between the flow guide part 6 and the heat dissipation part 4 for heat exchange, so as to cool the relatively hot air.

[0057] Furthermore, the main chamber air supply part drives the air in the main chamber 1 to circulate clockwise or counterclockwise. The main chamber air supply part includes multiple main chamber air supply part groups, and at least one pair of main chamber air supply part groups are arranged diagonally.

[0058] The main chamber air supply part drives the air in the main chamber 1 to circulate clockwise or counterclockwise, which can make the air flow in the main chamber 1 more regular and efficient, avoid generating air turbulence in the main chamber 1, increase the air flow speed, accelerate heat dissipation, and at the same time reduce aerodynamic noise.

[0059] Furthermore, the main chamber air supply part includes a first main chamber air supply part group, a second main chamber air supply part group, and a third main chamber air supply part group. The first main chamber air supply part group and the third main chamber air supply part group are arranged diagonally. The air supply directions of the first main chamber air supply part group and the third main chamber air supply part group are opposite and consistent with the air flow direction. The second main chamber air supply part group is arranged near the center line of the main chamber 1, and the air supply direction of the second main chamber air supply part group is perpendicular to the air supply directions of the first main chamber air supply part group and the third main chamber air supply part group. And the first main chamber air supply part group, the second main chamber air supply part group, and the third main chamber air supply part group all include at least one air supply part.

[0060] The main chamber 1 is a rectangular chamber. The first main chamber air supply part group and the third main chamber air supply part group are respectively arranged near a corner of the main chamber 1, so that the first main chamber air supply part group and the third main chamber air supply part group are arranged diagonally. The air supply directions of the first main chamber air supply part group and the third main chamber air supply part group are opposite and consistent with the air flow direction to form a clockwise or counterclockwise air circulation.

[0061] Further, the first main chamber air supply member group includes a first main chamber air supply member 301, the second main chamber air supply member group includes a second main chamber air supply member 302 and a third main chamber air supply member 303, the third main chamber air supply member group includes a fourth main chamber air supply member 304 and a fifth main chamber air supply member 305. The first main chamber air supply member 301 is disposed on the flow guide member 6. There is a height difference between the installation positions of the second main chamber air supply member 302 and the third main chamber air supply member 303, and / or there is a height difference between the installation positions of the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305.

[0062] In this embodiment, the first main chamber air supply member 301 is disposed on the first flow guide portion 601. The second main chamber air supply member group and the third main chamber air supply member group are both disposed close to the box body wall of the main chamber 1 away from the heat dissipation chamber 2, and the second main chamber air supply member group and the third main chamber air supply member group are disposed at an interval.

[0063] As Figure 2 shown, in this embodiment, there are five main chamber air supply members, namely a first main chamber air supply member 301, a second main chamber air supply member 302, a third main chamber air supply member 303, a fourth main chamber air supply member 304, and a fifth main chamber air supply member 305. The installation positions of the five main chamber air supply members are related to the required internal circulation heat dissipation direction in the main chamber 1. Each main chamber air supply member can adopt a fan.

[0064] Specifically, the first main chamber air supply member 301 is disposed on the first flow guide portion 601. And in order to form good internal circulation heat dissipation, the installation position of the first main chamber air supply member 301 is relatively close to the inner wall of the main chamber 1. The second main chamber air supply member 302 and the third main chamber air supply member 303 form the second main chamber air supply member group, and the second main chamber air supply member 302 and the third main chamber air supply member 303 are disposed at an interval. The second main chamber air supply member group is disposed close to the box body wall of the main chamber 1 away from the heat dissipation chamber 2, and the installation position of the second main chamber air supply member group is relatively close to the midline position of the main chamber 1. The fourth main chamber air supply member 304 and the fifth main chamber air supply member 305 form the third main chamber air supply member group, and the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305 are disposed at an interval. The third main chamber air supply member group is also disposed close to the box body wall of the main chamber 1 away from the heat dissipation chamber 2, and the third main chamber air supply member group is disposed at an interval from the second main chamber air supply member group. As Figure 2 shown, the third main chamber air supply member group is relatively close to the other box body wall of the main chamber 1, and the other box body wall is disposed opposite to the box body wall of the main chamber 1 connected to the first end of the first flow guide portion 601.

[0065] It should be noted that in the area where the second main chamber air supply member group and the third main chamber air supply member group are disposed, the electrical components are relatively concentrated, so the heat generated in this area will be relatively high.

[0066] Specifically, the air supply direction of the first main chamber air supply member 301 is perpendicular to the heat dissipation member 4 and towards the second main chamber air supply member group. For example, Figure 2 from a perspective, the air supply direction of the first main chamber air supply member 301 is to the right. The air supply direction of the second main chamber air supply member group is perpendicular to the air supply direction of the first main chamber air supply member 301 and towards the third main chamber air supply member group. For example, Figure 2 from a perspective, the air supply direction of the second main chamber air supply member group is downward. The air supply direction of the third main chamber air supply member group is perpendicular to the air supply direction of the second main chamber air supply member group and towards the heat dissipation member 4. For example, Figure 2 from a perspective, the air supply direction of the third main chamber air supply member group is to the left.

[0067] When the relatively hot air is sequentially conveyed through the first main chamber air supply member 301, the second main chamber air supply member 302, the third main chamber air supply member 303, the fourth main chamber air supply member 304, and the fifth main chamber air supply member 305, it reaches the second diversion part 602. The second diversion part 602 guides the relatively hot air to the heat dissipation member 4. The temperature of the heat dissipation member 4 is relatively low and can cool the relatively hot air. The cooled air is sent again through the first main chamber air supply member 301 to the second main chamber air supply member group, forming an internal heat dissipation cycle.

[0068] Furthermore, there is a height difference between the installation positions of the second main chamber air supply member 302 and the third main chamber air supply member 303, and there is a height difference between the installation positions of the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305.

[0069] In the second main chamber air supply member group, there is a height difference between the installation positions of the second main chamber air supply member 302 and the third main chamber air supply member 303. That is to say, the distances of the second main chamber air supply member 302 and the third main chamber air supply member 303 from the bottom of the main chamber 1 are different, enabling the second main chamber air supply member 302 and the third main chamber air supply member 303 to supply air to the relatively hot air at different height positions, so as to enhance the internal circulation heat dissipation effect.

[0070] Similarly, in the third main chamber air supply member group, there is a height difference between the installation positions of the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305. That is to say, the distances of the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305 from the bottom of the main chamber 1 are different, enabling the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305 to supply air to the relatively hot air at different height positions, so as to enhance the internal circulation heat dissipation effect.

[0071] In other embodiments, it is also possible that only the installation positions of the second main chamber air supply member 302 and the third main chamber air supply member 303 have a height difference, or only the installation positions of the fourth main chamber air supply member 304 and the fifth main chamber air supply member 305 have a height difference.

[0072] The following describes the internal circulation heat dissipation and external circulation heat dissipation processes of the battery box body of this embodiment in conjunction with the attached Figure 2 diagrams:

[0073] First, when the electrical components in the battery box body are operating, the electrical components will generate heat, which will cause the temperature inside the main chamber 1 to rise significantly.

[0074] Internal circulation heat dissipation - The first main chamber air supply member 301 supplies air to the second main chamber air supply member group, the second main chamber air supply member group supplies air to the third main chamber air supply member group, the third main chamber air supply member group supplies air to the heat dissipation member 4, and then through the guiding action of the second guiding portion 602, the relatively hot air inside the main chamber 1 is blown towards the heat dissipation member 4. The heat dissipation member 4 uses the temperature difference to cool the relatively hot air. The cooled air is sent to the second main chamber air supply member group again through the first main chamber air supply member 301, forming an internal heat dissipation cycle.

[0075] External circulation heat dissipation - As the internal circulation heat dissipation process progresses, the temperature of the heat dissipation member 4 also gradually rises, and the air temperature inside the heat dissipation chamber 2 increases. The heat dissipation chamber air supply member 5 extracts this part of the hot air to the outside. At the same time, the relatively cold air outside enters the heat dissipation chamber 2 from the ventilation hole 201 to cool the heat dissipation member 4, forming an external heat dissipation cycle.

[0076] Through the above internal heat dissipation cycle and external heat dissipation cycle processes, the main chamber 1 can be effectively cooled, ensuring the stable operation and service life of the electrical components inside the main chamber, and eliminating potential safety hazards. Moreover, the above heat dissipation and cooling process will not affect the sealing performance and protection level of the main chamber 1.

[0077] In other embodiments, the first main chamber air supply member group, the second main chamber air supply member group, and the third main chamber air supply member group may include one air supply member, three air supply members, etc., and two pairs, three pairs, etc. of main chamber air supply member groups may also be arranged diagonally.

[0078] In other embodiments, the main chamber 1 or the heat dissipation chamber 2 may also be of an irregular structure, and the main chamber 1 and the heat dissipation chamber 2 share two, three, etc. box body walls.

[0079] In other embodiments, the battery box body may also be an energy storage container, an integrated cabinet, etc.

[0080] This embodiment also provides an energy storage cabinet, which includes the battery box body as described above. The heat dissipation component in the battery box body is a heat dissipation fin, and the spacing range of the heat dissipation fins is [3 mm, 12 mm]. This energy storage cabinet has the same beneficial effects as the battery box body, which will not be elaborated here. In addition, the spacing range of the heat dissipation fins is [3 mm, 12 mm]. For example, the spacing of the heat dissipation fins can be 3 mm, 4 mm, 6 mm, 11 mm, 12 mm, etc. Within the above spacing range, the arrangement of the heat dissipation fins makes full use of the installation space and can achieve the optimal heat dissipation effect.

[0081] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A battery box, characterized in that: include: A main chamber (1) is surrounded by a plurality of box walls to form a closed chamber; A heat dissipation chamber (2) connected at least to a wall portion of the box body, the heat dissipation chamber (2) being in communication with the outside; A main chamber air supply member, arranged in the main chamber (1), the main chamber air supply member being used to accelerate the flow of air in the main chamber (1); A heat sink (4) is arranged at a connection position between the main chamber (1) and the heat sink (2), and the heat sink (4) is used to increase a heat exchange area between the main chamber (1) and the heat sink (2).

2. The battery box according to claim 1, characterized in that: The main chamber (1) and the heat dissipation chamber (2) share at least one box wall, and the heat dissipation element (4) is arranged on the shared box wall of the main chamber (1) and the heat dissipation chamber (2).

3. The battery box according to claim 2, characterized in that: The common box wall has a mounting through hole (101), the heat sink (4) is arranged in the mounting through hole (101), and the heat sink (4) is sealed and connected to the mounting through hole (101).

4. The battery box according to claim 2, characterized in that: The projected area of ​​the heat sink (4) on the common box wall is [60cm 2 ,85cm 2 ].

5. The battery box according to claim 1, characterized in that: It also comprises a heat dissipation chamber air supply member (5), wherein the heat dissipation chamber air supply member (5) is arranged on the wall of the box body, and the heat dissipation chamber air supply member (5) is used to accelerate the air flow between the heat dissipation chamber (2) and the outside.

6. The battery box according to claim 2, characterized in that: The heat sink (4) is a heat sink fin, the extension direction of the heat sink fin is arranged at an angle with the common box wall, and the extension length range of the heat sink fin is [35 cm, 45 cm].

7. The battery box according to any one of claims 1 to 6, characterized in that: It also comprises a flow guide (6), wherein the flow guide (6) is arranged in the main chamber (1), and the flow guide (6) is arranged close to the heat sink (4).

8. The battery case according to claim 7, characterized in that: The main chamber air supply member drives the air in the main chamber (1) to circulate in a clockwise or counterclockwise direction, and the main chamber air supply member includes a plurality of main chamber air supply member groups, at least one pair of the main chamber air supply member groups being arranged diagonally.

9. The battery case according to claim 8, characterized in that: The main chamber air supply parts include a first main chamber air supply parts group, a second main chamber air supply parts group and a third main chamber air supply parts group. The first main chamber air supply parts group and the third main chamber air supply parts group are diagonally arranged, and the air supply directions of the first main chamber air supply parts group and the third main chamber air supply parts group are opposite and consistent with the air flow direction. The second main chamber air supply parts group is arranged close to the center line of the main chamber (1), and the air supply direction of the second main chamber air supply parts group is perpendicular to the air supply directions of the first main chamber air supply parts group and the third main chamber air supply parts group.

10. The battery case according to claim 9, characterized in that: The first main chamber air supply component group, the second main chamber air supply component group and the third main chamber air supply component group each include at least one air supply component.

11. The battery case according to claim 9, characterized in that: The first main chamber air supply component group includes a first main chamber air supply component (301), the second main chamber air supply component group includes a second main chamber air supply component (302) and a third main chamber air supply component (303), the third main chamber air supply component group includes a fourth main chamber air supply component (304) and a fifth main chamber air supply component (305), the first main chamber air supply component (301) is arranged on the guide component (6), the second main chamber air supply component (302) and the third main chamber air supply component (303) have a height difference in their setting positions, and / or the fourth main chamber air supply component (304) and the fifth main chamber air supply component (305) have a height difference in their setting positions.

12. An energy storage cabinet, characterized in that: Comprising a battery box as claimed in any one of claims 1 to 11, the heat sink (4) in the battery box is a heat sink fin, and the spacing range of the heat sink fin is [3mm, 12mm].

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