WO2022095041A1

WO2022095041A1 - Battery storage device

Info

Publication number: WO2022095041A1
Application number: PCT/CN2020/127576
Authority: WO
Inventors: 陈良深
Original assignee: 深圳市大疆创新科技有限公司
Priority date: 2020-11-09
Filing date: 2020-11-09
Publication date: 2022-05-12
Also published as: CN114556665A

Abstract

Provided in an embodiment of the present invention is a battery storage device. The battery storage device comprises a housing (10) having an accommodating space for accommodating a battery; a first limiting member (20), the first limiting member (20) being arranged in the accommodating space and being used for limiting the battery; and an inner box (30) arranged in the accommodating space, the inner box being used for accommodating a cooling substance. The inner box (30) is provided with a discharge port (31), and a discharge module (32) used for blocking the discharge port (31) is arranged at the discharge port in a sealed manner; and when the temperature in the accommodating space reaches a preset value, a sealing part between the discharge module (32) and the discharge port (31) can be heated and deformed, so as to fail sealing between the discharge module (32) and the inner box (30) such that the cooling substance can overflow. The technical solution can effectively reduce the risk of the battery colliding in the housing, and has good fireproof and explosion-proof effects, and the whole battery storage device has good mounting performance.

Description

battery storage device

technical field

Embodiments of the present invention relate to the technical field of mechanical structure design, and in particular, to a battery storage device.

Background technique

In the field of drone technology, for example, the batteries on industrial drones and agricultural drones generally have large capacity, and batteries charged at high rates are prone to explosion. During the transportation process, the collision between the battery and the battery box can also easily increase the risk of battery explosion. Once the battery explodes, the battery box will also explode, thereby igniting the external inflammables and causing loss of life and property.

SUMMARY OF THE INVENTION

In view of the above-mentioned defects in the prior art, embodiments of the present invention provide a battery storage device.

A first aspect of the embodiments of the present invention provides a battery storage device, including:

a casing, formed with a accommodating space for accommodating the battery;

a first limiting piece, the first limiting piece is arranged in the accommodating space for limiting the battery;

The inner box is arranged in the accommodating space, and the inner box is used for accommodating cooling substances; the inner box has a discharge port, and the discharge port is sealed with a leakage module for blocking the discharge port;

When the temperature in the accommodating space reaches a preset value, the seal between the outlet module and the outlet can be deformed by heat, so that the seal between the outlet module and the inner box fails. , the cooling substance can overflow.

In the battery storage device provided in the first aspect of the embodiment of the present invention, a first limiting member is arranged in the accommodation space of the casing to limit the position of the battery, which effectively reduces the risk of the battery colliding in the casing. The inner box containing the cooling material, the inner box has a discharge port, and the discharge port has a leakage module. After the temperature in the accommodating space reaches a preset value, the sealing between the discharge port and the leakage module fails, and the cooling material can overflow, thereby The temperature in the accommodating space is lowered, thereby effectively and reliably reducing the risk of explosion of the battery and the battery box.

A second aspect of the embodiments of the present invention provides a battery storage device, including:

a casing, formed with a accommodating space for accommodating the battery;

a first limiting member, arranged in the accommodating space, for limiting the battery;

Wherein, the first limiting member is formed with a first slot for limiting the battery, and when the battery is inserted into the first slot, the port of the electrical connector of the battery can face away from the battery. side of the housing.

In the battery storage device provided by the embodiment of the present invention, the battery is limited by arranging a first limiting member in the accommodation space of the casing, which effectively reduces the risk of the battery colliding in the casing. The first slot of the battery limit, when the battery is inserted into the first slot, the port of the electrical connector of the battery faces the side away from the casing. The port faces the side away from the casing, so that when the battery sprays fire, the flame is directed towards the inside of the casing, and the flame is not sprayed outward, thereby further improving the safety performance of the battery storage device.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

FIG. 1 is a schematic structural diagram of a battery storage device according to an embodiment of the present invention;

2 is a cross-sectional view of a battery storage device according to an embodiment of the present invention;

3 is a schematic diagram of an exploded structure of a battery storage device according to an embodiment of the present invention;

4 is a perspective cross-sectional view of an inner box in a battery storage device according to an embodiment of the present invention;

5 is a schematic structural diagram of an inner box in a battery storage device according to another embodiment of the present invention;

6 is a schematic diagram of an explosion structure of a leakage module provided by another embodiment of the present invention;

7 is a three-dimensional cross-sectional view of a drain module provided in another embodiment of the present invention in a closed state;

FIG. 8 is a half-section view of a drain module in a closed state provided by another embodiment of the present invention;

FIG. 9 is a three-dimensional cross-sectional view of an open state of a leaking module provided by another embodiment of the present invention;

FIG. 10 is a half-sectional view of a venting module in an open state provided by another embodiment of the present invention;

11 is a schematic structural diagram of a battery storage device according to another embodiment of the present invention;

12 is a schematic diagram of the internal structure of a battery storage device provided by another embodiment of the present invention when no battery is installed;

FIG. 13 is a schematic diagram of the internal structure of the battery storage device provided by another embodiment of the present invention after the battery is installed.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

The "including" mentioned throughout the specification and claims is an open-ended term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range, and basically achieve the technical effect.

Furthermore, the term "connected" herein includes any direct and indirect means of connection. Therefore, if it is described herein that a first device is connected to a second device, it means that the first device can be directly connected to the second device or indirectly connected to the second device through another device.

It should be understood that the term "and/or, and/or" used in this document is only an association relationship to describe associated objects, indicating that there may be three relationships, for example, A1 and/or B1, which may indicate that A1 exists alone, A1 and B1 exist at the same time, and there are three cases of B1 alone. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

The inventor found that in the field of UAV technology, such as industrial UAVs and agricultural UAVs, the batteries generally have large capacity, and the batteries charged at high rates are easy to explode. For example, in farmland, during transportation, the battery is usually placed naked in the vehicle or in a simple battery box, and it is difficult for the user to notice the state of the battery. Since the collision between the battery and the battery box can also easily increase the risk of battery explosion, once the battery explodes, the battery box will also explode, thereby igniting external flammables and causing loss of life and property.

1 is a schematic structural diagram of a battery storage device provided by an embodiment of the present invention; FIG. 2 is a cross-sectional view of a battery storage device provided by an embodiment of the present invention; FIG. 3 is a schematic diagram of an exploded structure of the battery storage device provided by an embodiment of the present invention . Referring to FIG. 1 to FIG. 3 , a battery storage device provided by an embodiment of the present invention is used for accommodating a battery 100 , and the battery storage device includes: a casing 10 , a first limiting member 20 , and an inner box 30 .

Wherein, the housing 10 is formed with an accommodating space for accommodating the battery 100 ; the first limiting member 20 is provided in the accommodating space for limiting the battery 100 .

The shape of the housing 10 is not limited, for example, it may be a square, a circle, a hexagon, or the like. The casing 10 may include a casing bottom wall, and casing side walls surrounding the casing bottom wall, and the casing bottom wall and the casing side walls enclose the above-mentioned accommodating space.

The first limiting member 20 can be fixed on the inner wall of the casing 10 (including the inner wall of the bottom wall of the casing and the inner wall of the side wall of the casing). Preferably, the first limiting member 20 can be bonded to the inner wall of the casing 10 . Alternatively, the outer dimension of the first limiting member 20 is slightly larger than the inner size of the housing 10 , so that the first limiting member 20 can be pressed against the inner wall of the housing 10 . The first limiting member 20 may be made of an elastic material, and, preferably, the first limiting member 20 may include a flame-retardant foamed material, such as flame-retardant foamed polypropylene, polypropylene plastic foamed material, etc. . The first limiting member 20 in the housing 10 may include one or more. When there is one first limiting member 20, a first slot for inserting the battery 100 may be formed on the first limiting member 20. P1, when there are multiple first limiting members 20, the plurality of first limiting members 20 can be distributed and arranged to enclose a first slot P1 into which the battery 100 is inserted.

The inner box 30 is arranged in the accommodating space, and the inner box 30 is used for accommodating the cooling material; the inner box 30 has a discharge port 31 , and the discharge port 31 is sealed with a leakage module 32 for blocking the discharge port 31 . When the temperature in the accommodating space reaches a preset value, the seal between the discharge module 32 and the discharge port 31 can be deformed by heat, so that the seal between the discharge module 32 and the inner box 30 is invalid, and the cooling material can overflow.

In this embodiment, the cooling material is a material that can reduce the temperature in the space, and the cooling material may specifically include at least one of the following: water, foam extinguishing agent, and carbon dioxide. The inner box 30 may be arranged in the middle of the casing 10 , and the battery 100 may be arranged between the inner box 30 and the casing 10 . The plurality of batteries 100 may be disposed around the inner case 30 , or the plurality of batteries 100 may be located on both sides of the inner case 30 .

The inner box 30 includes a bottom wall 30a and side walls 30b surrounding the bottom wall 30a. Preferably, the discharge port 31 on the inner box 30 may be located at one end of the side wall 30b of the inner box 30 that is close to the bottom wall 30a, so that once the temperature of the accommodating space in the housing 10 is too high, the temperature in the inner box 30 decreases. The material can be leaked out as much as possible to avoid the position of the discharge port 31 being too high, so that only the cooling material in the upper part of the inner box 30 can be released, and the amount of cooling material leakage is not enough, which in turn leads to a situation where the cooling effect is not good. occur.

It should be noted that, when the discharge port 31 is arranged on the side wall 30b of the inner box 30 close to the end of the bottom wall 30a, the bottom wall 30a of the inner box 30 can be directly attached to the bottom wall of the housing 10, The inner box 30 may also be suspended in the casing 10 , so that there is a distance between the bottom wall 30 a of the inner box 30 and the bottom wall of the casing 10 , and the discharge port 31 is located on the bottom wall 30 a of the inner box 30 . This arrangement also enables the cooling substances in the inner box 30 to escape as much as possible.

In addition, it is worth noting that when designing the position of the discharge port 31, the position of the ignition point on the battery 100 also needs to be considered. Generally, the ignition point of the battery 100 is the port of the electrical connector of the battery 100, and the discharge port 31 can be set as close as possible to the port of the electrical connector of the battery 100, so that when the ignition point of the battery 100 starts to generate flames , the flame at the ignition point of the battery 100 can be extinguished in time, and the further ignition and detonation of the battery 100 can be prevented in time.

The discharge port 31 is sealedly connected to the discharge module 32. When the temperature in the accommodating space reaches a preset value, the seal between the discharge module 32 and the discharge port 31 can be deformed by heat. Preferably, the inner box 30 and the discharge module are At least one of 32 is capable of thermal deformation.

The discharge port 31 is sealedly connected to the discharge port 32 , specifically, the discharge module 32 and the discharge port 31 are threadedly connected, and the discharge module 32 and the discharge port 31 are sealed by a sealing ring, and the discharge module 32 and the discharge port 31 are sealed. The threaded connection is simple and reliable in structure and easy to operate. Certainly, in some other embodiments, the outlet module 32 and the discharge port 31 may also be connected by means of interference fit, or other means, which are not particularly limited in the present invention.

It can be understood that the thermal deformation of the seal between the outlet module 32 and the outlet 31 may include the following methods: the sealing ring and the inner box 30 may be thermally deformed; or, the sealing ring and the outlet module 32 may be thermally deformed. deformed. In some embodiments, only the sealing ring may be thermally deformed. All the solutions for thermal deformation of the seal between the outlet module 32 and the outlet port 31 provided in the above description can all achieve the failure of the seal between the outlet module 32 and the outlet port 31 .

In this embodiment, the inner box 30 is preferably a plastic part, and the inner box 30 may be made of a material with a thermal deformation temperature lower than 90°, for example, may be PET (polyester resin). When the inner box 30 can be thermally deformed, compared with the other two methods, the cooling substance in the inner box 30 can be released most quickly and most.

In the battery storage device provided by the embodiment of the present invention, a first limiting member is arranged in the accommodating space of the casing to limit the position of the battery, so as to buffer the collision of the battery in the casing and effectively reduce the risk of collision of the battery in the casing , by arranging an inner box containing a cooling substance in the casing for accommodating the battery, the inner box has a discharge port, and the discharge port has a leakage module. If the seal fails, the cooling substance can overflow, thereby reducing the temperature in the accommodating space, thereby effectively and reliably reducing the risk of explosion of the battery and the battery box.

4 is a three-dimensional cross-sectional view of an inner box in a battery storage device according to an embodiment of the present invention; as shown in FIG. Specifically, the injection port 33 may be cylindrical and protrude from the surface of the inner box 30 , an injection port cover 331 may be provided at the injection port 33 , and the injection port cover 331 may be screwed into the injection port 33 by screwing. , the injection port cover 331 can also be sealed with the injection port 33 . By arranging the injection port cover 331, the injection port 33 can be effectively sealed when no cooling substance needs to be injected, so as to prevent the cooling substance in the inner box 30 from overflowing or splashing from the injection port 33 during the transportation of the battery storage device. .

Further, the injection port 33 may be located at the top of the inner box 30 so that the inner box 30 can have the maximum capacity. Of course, it cannot be excluded that in other embodiments, the injection port 33 may be located at other positions in the inner box 30 .

In this embodiment, preferably, the inner box 30 may include a plastic part, and the outlet module 32 may include a metal part. The inner box 30 includes plastic parts, so that when the temperature in the accommodating space increases due to the combustion of the battery 100, the inner box 30 can be thermally deformed in time, so that the gap between the discharge port 31 on the inner box 30 and the leakage module 32 If the seal fails, the cooling material can be quickly discharged into the containing space.

Optionally, the inner box 30 may also include metal parts, and the outlet module 32 may also include plastic parts. The leakage module 32 includes plastic parts, so that when the temperature in the accommodating space increases due to the combustion of the battery 100 , the leakage module 32 can be thermally deformed in time, so that the outlet 31 on the inner box 30 and the leakage module 32 can be thermally deformed in time. If the seal between them fails, the cooling substances can also be discharged into the containing space.

As shown in FIG. 4 , the discharge port 31 may also be cylindrical and protrude from the side wall of the inner box 30 . The cylindrical discharge port 31 can facilitate the installation of the discharge module 32 . In the embodiment shown in FIG. 4 , the discharge module 32 may be a cover, and the cover may be sleeved on the outside of the cylindrical discharge port 31 . Specifically, the outside of the cylindrical discharge port 31 may have external threads, and the cover The inner side can have internal threads, and the two are screwed together. The leakage module 32 is directly a cover, which has a simple structure and low manufacturing cost.

In addition, preferably, there may be two or more discharge ports 31, and the two discharge ports 31 may be symmetrically arranged in the inner box 30, or a plurality of discharge ports 31 may be evenly arranged in the inner box 30, so as to realize the A plurality of evenly distributed batteries 100 are subjected to cooling treatment.

FIG. 5 is a schematic structural diagram of an inner box in a battery storage device provided by another embodiment of the present invention; FIG. 6 is a schematic structural diagram of an explosion of a leakage module provided by another embodiment of the present invention; FIG. 7 is another embodiment of the present invention. A three-dimensional cross-sectional view of the provided venting module in a closed state; FIG. 8 is a half-sectional view of a venting module provided in a closed state according to another embodiment of the present invention; FIG. 9 is an open state of the venting module provided by another embodiment of the present invention FIG. 10 is a half-sectional view of the discharge module provided in another embodiment of the present invention in an open state.

This embodiment provides another structure of the leakage module 32. For details, please refer to FIG. 5 to FIG. 10. When the inner box 30 includes metal parts and the leakage module 32 includes plastic parts; the leakage module 32 includes a cylinder. body 321 , cover 322 and piston 323 .

The cylindrical body 321 is sealed and fixed to the discharge port 31 , and a through hole 3211 is formed on the side wall of the cylindrical body 321 . Specifically, as shown in FIG. 5 , the cylindrical body 321 can be sleeved on the outside of the cylindrical discharge port 31 , and the cylindrical body 321 and the discharge port 31 can be threadedly connected, and the cylindrical body 321 and the discharge port 31 can pass through The end face of the first sealing ring X1 is sealed. More specifically, the cylinder body 321 may include a large hole section 321a and a small hole section 321b, and a step 321c is formed at the connection between the large hole section 321a and the small hole section 321b, and the first sealing ring X1 can be set. on this step.

The blocking cover 322 is sealed and fixed to one end of the cylinder body 321 . Specifically, as shown in FIGS. 7 to 10 , the blocking cover 322 can be sleeved on the outside of the small hole section 321b of the cylinder body 321 , and the blocking cover 322 and the cylinder body 321 can be The end face is sealed by the second sealing ring X2. Wherein, preferably, the blocking cover 322 can be a plastic part, and the cylinder body 321 can be a metal part. Of course, in some other embodiments, the blocking cover 322 can be a metal part, and the cylinder body 321 can be a plastic part. As long as it can be achieved that when the battery 100 spontaneously ignites and the temperature in the accommodating space rises to a preset value, the blocking cover 322 or the cylinder 321 is melted, so that the sealing between the two becomes invalid, that is, the leakage module 32 is released. It is sufficient that the seal at the seal with the inner box 30 fails.

The piston 323 is movably disposed in the cylinder body 321, and the piston 323 can move from the position of blocking the through hole 3211 to the position of avoiding the through hole 3211. Substances can escape from the through holes 3211 . The piston 323 may be in sealing contact with the inner wall of the cylinder body 321 , so that a closed space can be formed between the piston 323 , the cylinder body 321 and the blocking cover 322 .

As shown in FIG. 7 and FIG. 8 , in the initial state, the piston 323 may be located at the position on the cylinder body 321 to block the through hole 3211 , the closed space formed by the piston 323 , the cylinder body 321 and the blocking cover 322 is filled with air, and the piston 323 The end of the cover 322 cannot be moved, the through hole 3211 on the cylinder body 321 is blocked, and the cooling substance cannot flow out from the through hole 3211 of the cylinder body 321 .

As shown in FIG. 9 and FIG. 10 , when the cover 322 is a plastic part, when the battery 100 in the accommodating space is spontaneously ignited, the cover 322 will be deformed by heat and melted, and the sealing between the cover 322 and the cylinder 321 will fail. The air escapes, the pressure in the space between the piston 323, the cover 322 and the cylinder 321 decreases, the piston 323 moves to the end of the cover 322, and the cooling material in the inner box 30 flows out from the through hole 3211 of the cylinder 321.

Similarly, when the cylinder body 321 is a plastic part, when the battery 100 in the accommodating space ignites spontaneously, the cylinder body 321 will be deformed and melted by heat, the sealing between the cover 322 and the cylinder body 321 will fail, the air will escape, and the piston 323 The pressure in the space between the blocking cover 322 and the cylinder 321 decreases, the piston 323 moves to the end of the blocking cover 322, and the cooling material in the inner box 30 flows out from the through hole 3211 of the cylinder 321.

In order to enable the piston 323 to switch from the position of blocking the through-hole 3211 to the position of opening the through-hole 3211 . Specifically, the piston 323 divides the cylinder 321 into a first chamber C1 and a second chamber C2 which are isolated from each other, the first chamber C1 is located between the blocking cover 322 and the piston 323 , and the second chamber C2 and the inner box 30 When the temperature in the accommodating space reaches a preset value, the leakage module 32 can be thermally deformed, so that the sealing of the first chamber C1 is invalid, and the pressure of the second chamber C2 pushes the piston 323 to move to a position that avoids the through hole 3211. position, and the cooling substance in the inner box 30 overflows from the through hole 3211 .

Since the second chamber C2 is in communication with the inner box 30, when the first chamber C1 fails to seal due to thermal deformation, the air in the first chamber C1 runs out, and the first chamber C1 and the second chamber C1 The pressure of C2 is unbalanced, and the air in the second chamber C2 together with the cooling substance pushes and pushes the piston 323 . The piston 323 overcomes the frictional resistance with the cylinder 321 and moves to open the through hole 3211 .

The battery storage device provided by the above-mentioned embodiments of the present invention can quickly spray a cooling substance when the battery 100 is self-igniting, so as to rapidly cool the accommodating space where the battery 100 is located, and prevent the accommodating space from exploding due to excessive temperature, thereby affecting life. Property security.

On the basis of any of the above embodiments, further, the number of batteries 100 in the accommodating space is at least two, and the at least two batteries 100 may be symmetrically or evenly distributed around the inner box 30 . At least two batteries 100, or even a plurality of batteries 100 are accommodated in the accommodation space defined by the housing 10, which can improve the carrying efficiency of the batteries 100 of the agricultural drone. And at least two batteries 100 are symmetrically or evenly distributed around the inner box 30, which can improve the balance of the weight distribution of the battery storage device, so that the battery storage device can be as balanced as possible in the process of loading and transporting the batteries 100, which improves battery storage. Stability of the device during transport.

The number of the inner boxes 30 is at least two, and the at least two inner boxes 30 are centrally arranged in the middle of the casing 10 . Specifically, at least two inner boxes 30 can be centrally arranged in the middle of the casing 10, and at least two batteries 100 can be arranged between the inner box 30 and the casing 10, the layout is reasonable and compact, the space utilization rate is high, and at least two batteries 100 can be arranged The two inner boxes 30 are centrally arranged in the middle of the casing 10, so that no matter which battery 100 in the accommodation space spontaneously ignites and the temperature in the accommodation space is too high, the cooling substances in the inner box 30 can be dispersed in the shortest path after overflowing. to the spontaneous combustion of the battery 100.

The two batteries 100 inside the battery storage device can be separated by the first limiting member 20 and the inner box 30 . When one of the batteries 100 spontaneously ignites, the first limiting member 20 and the inner box 30 can effectively isolate the heat source. , preventing another battery 100 from being ignited as well.

Further, the battery 100 may include an electrical connector port (not shown in the figure), and when the battery 100 and the inner box 30 are respectively accommodated in preset positions of the accommodating space, the discharge port 31 of the inner box 30 may be located in the electrical connection below the device port. Specifically, the electrical connector port can be used for electrical connection with an external charging device to realize charging of the battery 100, or the electrical connector port can be used for connecting with an external device to realize power supply to the external device, etc., Alternatively, the electrical connector port may be used for electrical connection with an external device to implement data transmission, which is not limited in this embodiment.

In this embodiment, the position of the discharge port 31 is preferably placed below the electrical connector port. Since the battery 100 itself is sealed, only the electrical connector port is connected to the outside world. When the battery 100 spontaneously ignites, the internal flame and high temperature smoke will It is discharged through the electrical connector port, so that the leakage module 32 is easily triggered due to the high temperature, which is conducive to the timely overflow of the cooling material.

The specific shape and structure of the first limiting member 20 will be described in detail below. As shown in FIG. 3 , the first limiting member 20 is roughly in the shape of a “zigzag” or a “mountain shape”. This kind of structure can effectively ensure that the battery 100 is restrained in the first limiting member 20 in the "zigzag" or "mountain shape". Of course, in other embodiments, the shape of the first limiting member 20 may also be other shapes, which are not limited in this embodiment.

In some embodiments, a first slot P1 for limiting the battery 100 is formed on the first limiting member 20 ; when the battery 100 is inserted into the first slot, the port of the electrical connector of the battery 100 ( FIG. 2 and 3) toward the side facing away from the case 10, so that when the battery 100 spontaneously ignites and the port of the electrical connector of the battery 100 spit fire, the flame is directed toward the center of the case 10, not outward Jet flame to avoid igniting external flammable materials.

11 is a schematic diagram of the structure of a battery storage device provided by another embodiment of the present invention; FIG. 12 is a schematic diagram of the internal structure of the battery storage device provided by another embodiment of the present invention when no battery is installed; FIG. 13 is another embodiment of the present invention. A schematic diagram of the internal structure of the battery storage device provided by the embodiment after the battery is installed. As shown in FIGS. 11 to 13 , in some other embodiments of the battery 100 , when the battery 100 is inserted into the first slot P1 , the port 101 of the electrical connector of the battery 100 faces one side of the casing 10 .

When the battery 100 is inserted into the first slot P1 , the port of the electrical connector of the battery 100 faces one side of the casing 10 , and the port of the electrical connector of the battery 100 is exposed from the casing 10 . In this way, when the battery 100 is enclosed in the housing 10, the battery 100 can also be charged through the exposed port of the electrical connector. The battery 100 can be charged without taking the battery 100 out of the battery storage device, which improves the charging efficiency of the battery 100 .

More specifically, the port 101 of the electrical connector of the battery 100 may be located on the top of the battery 100 , and in some other embodiments, the port 101 of the electrical connector of the battery 100 may be located on the side of the battery 100 .

As shown in FIG. 3 , further, the first limiting member 20 may include protruding portions 21 , the first slots P1 include an even number, and the even-numbered first slots P1 are symmetrical to the protruding portions 21 . Since the first slot P1 is used for inserting the battery 100 to limit the position of the battery 100, the number and position of the first slot P1 determine the number and position of the battery 100, therefore, the even number of batteries 100 can be made symmetrical to the convex The starting portion 21 is provided.

Further, the first limiting member 20 also has a second slot P2 into which the inner box 30 is inserted. The inner box 30 is inserted into the second slot P2 to limit the position of the inner box 30 . Specifically, the second slot P2 may be located in the convex portion 21 , and the inner case 30 may be disposed in the convex portion 21 , and thus, the battery 100 may be disposed symmetrically with respect to the inner case 30 .

On the basis of the above embodiment, specifically, when the battery 100 is inserted into the first slot P1 , the port of the electrical connector of the battery 100 may face the protruding portion 21 . The port of the electrical connector of the battery 100 faces the protrusion 21, so that when the battery 100 spontaneously ignites and the port of the electrical connector emits flame, due to the blocking of the protrusion 21, the flame can be effectively prevented from spraying to other positions, and , since the first limiting member 20 is a flame retardant material, and the raised portion 21 is also a flame retardant material, the raised portion 21 can prevent the flame of the battery 100 from igniting other batteries 100 or other flammable substances to a certain extent, Better security.

In this embodiment, further, when the battery 100 is inserted into the first slot P1, the first limiting members 20 are distributed in the gap between the casing 10, the battery 100 and the inner box 30. It should be noted that the first limiting member 20 is distributed in the gap between the casing 10 , the battery 100 and the inner box 30 , and is not limited to filling the casing 10 , the battery 100 and the inner box with the first limiting member 20 As long as the gap between the casing 10 , the battery 100 and the inner box 30 has the first limiting member 20 , it is sufficient. Therefore, the casing 10 and the battery 100, the casing 10 and the inner case 30, and the battery 100 and the inner casing 30 are all separated by the first limiting member 20, so that the first limiting member 20 can Both the inner box 30 and the battery 100 are limited.

The notch of the first socket P1 and the notch of the second socket P2 are away from each other. That is, the insertion direction of the inner case 30 is made opposite to the insertion direction of the battery 100 . In the installed state, the injection port 33 of the inner box 30 is located at the upper position of the first limiting member 20 , and the discharge port 31 is located at the lower position of the first limiting member 20 . As shown in FIG. 2 , there is an opening 22 on the first buffer template 20 at a position corresponding to the injection port 33 , so that the opening on the first limiting member 20 can be directly penetrated before the battery 100 is installed. The hole 22 opens the injection port 33, and the cooling substance is injected into the inner box 30, which improves the convenience of operation.

On the basis of any of the above embodiments, as shown in FIGS. 1 , 3 , and 11 to 13 , the housing 10 may include a box body 10 a and a box cover 10 b , the box body 10 a defines an accommodating space, and the box cover 10 b is movable The ground cover is arranged on the box body 10a. Specifically, the box cover 10b can be hinged with the box body 10a. In some embodiments, the box cover 10b can be connected to the box body 10a by snaps, etc., as long as the box cover 10b can be movably fixed on the box body 10a, and can be attached to the box body 10a. The box cover 10b may be opened from the box body 10a to expose the accommodating space.

In this embodiment, the box body 10a includes a metal piece; and/or the box cover 10b includes a metal piece. The box body 10a and the box cover 10b made of metal have good structural strength, are not easily deformed, and are not easily cracked.

Further, a second limiting member 40 may be provided between the box cover 10b and the box body 10a. Similarly, the second limiting member 40 may also include a flame-retardant foamed material, such as flame-retardant foamed polypropylene , Polypropylene plastic foam materials, etc. By arranging the second limiting member 40 between the box cover 10b and the box body 10a, the battery 100 and the inner box 30 can be limited in the vertical direction of the battery storage device, so as to further improve the buffering effect of the battery storage device and improve the performance of the battery storage device. The transport of the battery 100 is safe.

Specifically, the second limiting member 40 can cover the surface of the box cover 10b facing the box body 10a, and further, the second limiting member 40 is bonded to the surface of the box cover 10b facing the box body 10a, using adhesive bonding The second limiting member 40 is fixed in such a way that the second limiting member 40 can be stably fixed. Of course, in some other embodiments, the second limiting member 40 may also be fixed on the box cover 10b by means of snap connection. When the box cover 10b is closed on the box body 10a, the box cover 10b can squeeze the battery 100, so that the battery 100 is more stably restrained, and the stability during transportation is further improved.

In this embodiment, the first limiting member 20 and the second limiting member 40 are provided to limit the position of the battery 100 and the inner box 30, and can play a buffering effect on the two to prevent the battery 100 and the inner box from colliding during transportation. The inner box 30 is damaged.

Further, the box cover 10b and the box body 10a can be relatively locked by a locking device. After the battery 100 is loaded into the accommodating space, the box cover 10b and the box body 10a are relatively locked to ensure that the battery 100 will not shift or move during the transportation of the battery storage device. The connection between the locking device and the box body 10a includes riveting connection. The method of riveting and pressing connection has better structural stability and simple process. Of course, in some other embodiments, the locking device may also be connected to the box body 10a by means of screws or the like.

Specifically, the locking device may include a first locking device 50, the first locking device 50 includes a lock catch 51 and a lock hook 52, one of the lock catch 51 and the lock hook 52 is provided on the box cover 10b, the lock catch 51 and the lock hook The other one of 52 is provided in the case 10a. The user can move the lock hook 52 , so that the lock hook 52 is switched between the position where the lock hook 52 hooks the lock 51 and the position where the lock hook 52 is disconnected from the lock 51 . Through the first locking device 50, the box cover 10b and the box body 10a can be locked relative to each other, so as to reduce the risk of explosion of the battery storage device due to the self-ignition of the battery 100 during the transportation of the battery storage device, so that the box cover 10b is exploded from the box body 10a. It can reduce the explosion hazard.

Further, the locking device may further include a second locking device 60, the second locking device 60 includes a padlock, and the padlock can be unlocked by an external unlocking member; or, the second locking device 60 includes a combination lock. By providing the second locking device 60, on the one hand, the reliability of locking the box cover 10b and the box body 10a can be further improved, and on the other hand, the second locking device 60 can effectively prevent the battery 100 from being stolen.

The first locking device 50 may include two, the second locking device 60 may include one, and the two first locking devices 50 may be symmetrically arranged on two sides of one second locking device 60 .

In some embodiments, the box 10a has a vent hole 11a that communicates with the accommodating space. The number and shape of the vent holes 11a are not limited. In this embodiment, there may be one vent hole 11a, or a plurality of vent holes 11a may be arranged together. By opening the vent holes 11a, the internal and external pressures of the casing 10 can be effectively balanced, so as to prevent the battery storage device from exploding due to excessive pressure inside the battery storage device.

In some embodiments, as shown in FIG. 1 , the outer side wall of the box body 10a may be provided with a shielding portion 12a for shielding the vent hole 11a, and the vent hole 11a is located at the shield portion 12a along the orthographic projection away from the thickness direction of the box body 10a superior. The shielding portion 12a may have a distance from the side wall of the box 10a. When the battery 100 burns, flames may be ejected from the vent hole 11a, and the flame ejected from the vent hole 11a directly impacts the shielding portion 12a. 12a blocks the flame, and the flame direction can be changed, so that the flame direction is in a predetermined direction, so as to prevent the flame from spreading to the periphery.

More specifically, as shown in FIG. 1 , at least one end of the shielding portion 12a is connected to or in contact with the box body 10a to form a closed end 122a, and at least one end of the shielding portion 12a is an open end 121a, and the closed end 122a is located above or above the open end 121a. diagonally above. In this way, the open end 121a is directed downward, so that the flame sprayed from the vent hole 11a directly impacts the shielding portion 12a, and the shielding portion 12a changes the direction of the flame, so that the flame is sprayed downward, and the downward direction is generally for carrying There is no flammable substance on the floor of the vehicle of the battery storage device, so the flames ejected from the vent hole 11a can be effectively prevented from spreading upwards or around.

In addition, a handle may be further provided on the outer side wall of the box body 10a. Further, the handle can be hinged with the box body 10a. By providing the handle, it is convenient for the user to hold the handle to carry the battery storage device, thereby improving the operability. The shielding portion 12a can be fixedly connected with the handle. In fact, when the shielding portion 12a is fixedly connected to the handle, it can be connected so that the handle can be used as the shielding portion 12a, thereby realizing that the same component has multiple functions, and making the structure arrangement more compact and reasonable.

In some other embodiments, when the first limiting member 20 is provided, the first limiting member 20 has a communication hole (not shown in the figure), and the communication hole communicates with the vent hole 11a, so that when the battery 100 When burning, the smoke can be released along the path defined by the communication hole, but the flame will not spread to the outside of the battery storage device.

The present invention also provides another embodiment for reducing the probability of igniting external flammable substances when the battery in the battery storage device catches fire. Specifically, as shown in FIGS. 2 and 3 , an embodiment of the present invention provides a battery storage device, including: a casing 10 and a first limiting member 20 .

An accommodating space for accommodating the battery 100 is formed in the case 10 . The first limiting member 20 is disposed in the accommodating space for limiting the battery 100 ; wherein, the first limiting member 20 is formed with a first slot P1 for limiting the battery 100 . When the battery 100 is inserted into the first socket When the slot P1 is used, the port of the electrical connector of the battery 100 can face the side away from the case 10 .

In this embodiment, the first limiting member 20 may be bonded to the inner wall of the housing 10 . The first limiting member 20 may include a flame retardant foam material.

The battery is limited by arranging a first limiting member in the accommodating space of the housing, which effectively reduces the risk of the battery colliding in the housing. A first slot for limiting the battery is formed on the first limiting member. When the battery is inserted into the first slot, the port of the electrical connector of the battery faces the side away from the casing. Since the fire of the battery generally starts from the port of the electrical connector, the port of the electrical connector faces the side away from the casing. When the battery fires, the flame is directed toward the inside of the casing, and the flame is not sprayed outward, thereby further improving the safety performance of the battery storage device.

In some embodiments, the first limiting member 20 is approximately in the shape of a "square" or a "mountain".

In some embodiments, the first limiting member 20 includes protruding portions 21 , the first slots P1 include an even number, and the even-numbered first slots P1 are symmetrical to the protruding portions 21 .

In some embodiments, when the battery 100 is inserted into the first slot P1 , the port of the electrical connector of the battery 100 may face the protrusion 21 .

In some embodiments, when the battery 100 is inserted into the first slot P1, the first limiting member 20 is distributed in the gap between the casing 10, the battery 100 and the inner case 30.

In some embodiments, the first limiting member 20 is fixed on the inner wall of the housing 10 , and the first limiting member 20 further has a second slot P2 into which the inner box 30 is inserted.

In some embodiments, the notch of the first socket P1 may be away from the notch of the second socket P2.

In some embodiments, the housing 10 includes a box body 10a and a box cover 10b, the box body 10a defines an accommodation space, and the box cover 10b is movably mounted on the box body 10a.

In some embodiments, a second limiting member 40 is provided between the box cover 10b and the box body 10a. Likewise, the second limiting member 40 may comprise a flame retardant foam material.

In some embodiments, the second limiting member 40 covers the surface of the box cover 10b facing the box body 10a.

In some embodiments, the second limiting member 40 is adhered to the surface of the box cover 10b facing the box body 10a.

In some embodiments, the box cover 10b and the box body 10a can be locked relative to each other by a locking device.

In some embodiments, the locking device includes a first locking device 50, the first locking device 50 includes a lock catch 51 and a lock hook 52, one of the lock catch 51 and the lock hook 52 is provided on the box cover 10b, the lock catch 51 and The other one of the lock hooks 52 is provided in the case 10a.

In some embodiments, the locking device includes a second locking device 60 that includes a padlock that can be unlocked by an external unlocking member; alternatively, the second locking device 60 includes a combination lock.

In some embodiments, the connection between the locking device and the box body 10a includes a riveting connection.

In some embodiments, the lid 10b is hinged to the body 10a.

In some embodiments, the box body 10a includes a metal piece; and/or the box cover 10b includes a metal piece.

In some embodiments, the box 10a has a vent hole 11a that communicates with the accommodating space.

In some embodiments, the first limiting member 20 has a communication hole, and the communication hole communicates with the vent hole 11a.

In some embodiments, the outer side wall of the box body 10a is provided with a shielding portion 12a for shielding the vent hole 11a, and the vent hole 11a is located on the shield portion 12a along the orthographic projection away from the thickness direction of the box body 10a.

In some embodiments, at least one end of the shielding portion 12a is connected to or in contact with the box body 10a to form a closed end, at least one end of the shielding portion 12a is an open end 121a, and the closed end 122a is located above or obliquely above the open end 121a.

In some embodiments, a handle is provided on the outer side wall of the box body 10a.

In some embodiments, the shielding portion 12a is fixedly connected to the handle.

In some embodiments, the handle is hinged to the case.

The difference between the battery storage device provided in this embodiment and the above-mentioned embodiments is that the battery storage device of this embodiment may not include the inner box 30, and the structures and functions of other components except the inner box 30 are the same as the above-mentioned embodiments. For details, reference may be made to the description of the foregoing embodiment, which is not repeated in this embodiment.

In addition, it is worth noting that, in some other embodiments, as shown in FIGS. 12 to 13 , when the battery 100 is inserted into the first slot P1 , the port of the electrical connector of the battery 100 can face a port away from the casing 10 . side. In this way, it can be realized that the battery 100 can be charged or data can be transmitted even when the battery 100 is not taken out from the casing 10 .

In several embodiments provided by the present invention, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, which may be electrical, mechanical or other forms.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims

A battery storage device, comprising:

a casing, formed with a accommodating space for accommodating the battery;

a first limiting piece, the first limiting piece is arranged in the accommodating space for limiting the battery;

The inner box is arranged in the accommodating space, and the inner box is used for accommodating cooling substances; the inner box has a discharge port, and the discharge port is sealed with a leakage module for blocking the discharge port;

When the temperature in the accommodating space reaches a preset value, the seal between the outlet module and the outlet can be deformed by heat, so that the seal between the outlet module and the inner box fails. , the cooling substance can overflow.
The battery storage device according to claim 1, wherein when the temperature in the accommodating space reaches a preset value, at least one of the leakage module and the inner box can be thermally deformed.
The battery storage device according to claim 1, wherein the drain module and the drain port are screwed together, and the drain module and the drain port are sealed by a sealing ring.
The battery storage device according to claim 1, wherein the inner box includes an injection port for injecting a cooling substance into the inner box.
The battery storage device of claim 4, wherein the injection port is located at the top of the inner box.
The battery storage device according to claim 1, wherein the discharge port is located at an end of the side wall of the inner box close to the bottom wall;

Alternatively, the inner box is suspended in the casing, the bottom wall of the inner box is spaced from the bottom wall of the casing, and the discharge port is located on the bottom wall of the inner box.
The battery storage device of claim 1, wherein the inner box comprises a plastic part, and the drain module comprises a metal part;

Alternatively, the inner box includes a metal part, and the outlet module includes a plastic part.
The battery storage device according to claim 7, wherein the inner box comprises a metal part, the drain module comprises a plastic part; the drain module comprises:

a cylindrical body, sealed and fixed with the discharge port, and a through hole is provided on the side wall of the cylindrical body;

a blocking cover, sealed and fixed with one end of the cylindrical body, and the other end of the cylindrical body is communicated with the inner box;

A piston is movably arranged in the cylinder, and the piston can move from a position that blocks the through hole to a position that avoids the through hole, and when the piston is at a position that avoids the through hole, the The cooling substance in the inner box can overflow from the through hole.
The battery storage device according to claim 8, wherein the piston divides the cylinder into a first chamber and a second chamber isolated from each other, and the first chamber is located between the plug and the cover. Between the pistons, the second chamber communicates with the inner box;

When the temperature in the accommodating space reaches a preset value, the leakage module can be thermally deformed, so that the sealing of the first chamber is invalid, and the pressure of the second chamber pushes the piston to move to avoid The position of the through hole, and thus the cooling substance in the inner box overflows from the through hole.
The battery storage device according to claim 8, wherein the cylinder body comprises a metal part, and the blocking cover comprises a plastic part.
The battery storage device according to claim 1, wherein the number of batteries in the accommodating space is at least two, and the at least two batteries are symmetrically or evenly distributed around the inner box.
The battery storage device according to claim 11, wherein the number of the discharge ports on the inner box is two, and the two discharge ports are arranged symmetrically.
The battery storage device according to claim 12, wherein the number of the inner boxes is at least two, and the at least two inner boxes are centrally arranged in the middle of the casing.
The battery storage device according to claim 1, wherein the battery includes an electrical connector port, and in a state that the battery and the inner case are respectively accommodated in preset positions of the accommodating space, the battery The outlet of the inner box is located below the electrical connector port.
The battery storage device according to claim 1, wherein the first limiting member is approximately in the shape of a "square" or a "mountain shape".
The battery storage device according to claim 1, wherein the first limiting member is formed with a first slot for limiting the battery;

When the battery is inserted into the first slot, the port of the electrical connector of the battery faces the side away from the housing;

Alternatively, when the battery is inserted into the first slot, the port of the electrical connector of the battery faces one side of the casing.
The battery storage device according to claim 16, wherein when the battery is inserted into the first slot, the port of the electrical connector of the battery faces one side of the housing, and the The port of the electrical connector of the battery is exposed from the housing.
The battery storage device according to claim 16, wherein the first limiting member comprises a protruding part, the first slot comprises an even number, and the even number of the first slot is symmetrical to the protruding part start.
The battery storage device of claim 18, wherein when the battery is inserted into the first slot, the port of the electrical connector of the battery faces the protrusion.
The battery storage device according to claim 16, wherein when the battery is inserted into the first slot, the first limiting member is distributed on the casing, the battery and the inner box in the gap between.
The battery storage device according to claim 16, wherein the first limiting member is fixed on the inner wall of the casing, and the first limiting member further has a second insert for inserting the inner box. groove.
The battery storage device of claim 21, wherein the notch of the first slot and the notch of the second slot are away from each other.
The battery storage device according to claim 21, wherein the first limiting member is bonded to the inner wall of the casing.
The battery storage device according to claim 1, wherein the first limiting member comprises a flame-retardant foam material.
The battery storage device according to claim 20, wherein the casing comprises a box body and a box cover, the box body defines the accommodating space, and the box cover is movably covered on the box body.
The battery storage device according to claim 25, wherein a second limiting member is provided between the box cover and the box body.
The battery storage device according to claim 26, wherein the second limiting member covers a surface of the case cover facing the case body.
The battery storage device according to claim 26, wherein the second limiting member is adhered to a surface of the case cover facing the case body.
The battery storage device according to any one of claims 26 to 28, wherein the second limiting member comprises a flame-retardant foam material.
The battery storage device according to claim 25, wherein the box cover and the box body can be relatively locked by a locking device.
31. The battery storage device of claim 30, wherein the locking device comprises a first locking device, the first locking device comprises a lock catch and a lock hook, wherein one of the lock catch and the lock hook One is arranged on the box cover, and the other of the lock catch and the lock hook is arranged on the box body.
The battery storage device according to claim 30, wherein the locking device comprises a second locking device, the second locking device comprises a padlock, the padlock can be unlocked by an external unlocking member;

Alternatively, the second locking device includes a combination lock.
The battery storage device according to claim 30, wherein the connection between the locking device and the box body comprises a riveting connection.
The battery storage device of claim 30, wherein the case cover is hinged to the case body.
The battery storage device according to claim 25, wherein the box body comprises a metal piece; and/or the box cover comprises a metal piece.
The battery storage device according to claim 25, wherein the box body has a vent hole communicating with the accommodating space.
The battery storage device according to claim 36, wherein the first limiting member has a communication hole, and the communication hole communicates with the vent hole.
The battery storage device according to claim 36, wherein a shielding portion for shielding the air vent hole is provided on the outer side wall of the case body, and the air vent hole is along a positive direction away from the thickness direction of the case body. A projection is located on the shielding portion.
The battery storage device according to claim 38, wherein at least one end of the shielding portion is connected to or in contact with the box to form a closed end, and at least one end of the shielding portion is an open end, and the closed end is located at above or diagonally above the open end.
The battery storage device according to claim 38, wherein a handle is provided on the outer side wall of the box.
The battery storage device according to claim 40, wherein the shielding portion is fixedly connected to the handle.
41. The battery storage device of claim 40, wherein the handle is hinged to the case.
The battery storage device according to claim 1, wherein the cooling material comprises at least one of the following: water, foam extinguishing agent, and carbon dioxide.
A battery storage device, comprising:

a casing, formed with a accommodating space for accommodating the battery;

a first limiting member, arranged in the accommodating space, for limiting the battery;

Wherein, the first limiting member is formed with a first slot for limiting the battery, and when the battery is inserted into the first slot, the port of the electrical connector of the battery can face away from the battery. side of the housing.
The battery storage device according to claim 44, wherein the first limiting member is approximately in the shape of a "square" or a "mountain shape".
The battery storage device according to claim 44, wherein the first limiting member comprises a protruding portion, the first slot comprises an even number, and the even number of the first slot is symmetrical to the protruding portion start.
The battery storage device of claim 46, wherein when the battery is inserted into the first slot, the port of the electrical connector of the battery faces the protrusion.
The battery storage device according to claim 44, wherein when the battery is inserted into the first slot, the first limiting member is distributed on the casing, the battery and the inner box in the gap between.
The battery storage device according to claim 44, wherein the first limiting member is fixed on the inner wall of the casing, and the first limiting member further has a second insert for inserting the inner box. groove.
The battery storage device of claim 49, wherein the notch of the first slot and the notch of the second slot face away from each other.
The battery storage device according to claim 44, wherein the first limiting member is bonded to the inner wall of the casing.
The battery storage device according to any one of claims 44 to 51, wherein the first limiting member comprises a flame-retardant foam material.
The battery storage device according to claim 44, wherein the casing comprises a box body and a box cover, the box body defines the accommodating space, and the box cover is movably covered on the box body.
The battery storage device according to claim 53, wherein a second limiting member is provided between the box cover and the box body.
The battery storage device according to claim 54, wherein the second limiting member covers a surface of the case cover facing the case body.
The battery storage device according to claim 55, wherein the second limiting member is adhered to a surface of the case cover facing the case body.
The battery storage device according to any one of claims 54 to 56, wherein the second limiting member comprises a flame retardant foam material.
The battery storage device according to claim 53, wherein the box cover and the box body can be relatively locked by a locking device.
The battery storage device of claim 58, wherein the locking device includes a first locking device, the first locking device includes a lock catch and a lock hook, wherein the lock catch and the lock hook are One is arranged on the box cover, and the other of the lock catch and the lock hook is arranged on the box body.
The battery storage device of claim 59, wherein the locking device comprises a second locking device, the second locking device comprising a padlock, the padlock can be unlocked by an external unlocking member;

Alternatively, the second locking device includes a combination lock.
The battery storage device according to claim 58, wherein the connection between the locking device and the box body comprises a riveting connection.
The battery storage device of claim 53, wherein the case lid is hinged to the case body.
The battery storage device of claim 53, wherein the box body comprises a metal piece; and/or the box cover comprises a metal piece.
The battery storage device according to claim 53, wherein the box body has a vent hole communicating with the accommodating space.
The battery storage device according to claim 64, wherein the first limiting member has a communication hole, and the communication hole communicates with the vent hole.
The battery storage device according to claim 53, wherein a shielding portion for shielding the vent hole is provided on the outer side wall of the box body, and the vent hole is along a positive direction away from the thickness direction of the box body. A projection is located on the shielding portion.
The battery storage device according to claim 66, wherein at least one end of the shielding portion is connected to or in contact with the box to form a closed end, at least one end of the shielding portion is an open end, and the closed end is located at above or diagonally above the open end.
The battery storage device according to claim 66, wherein a handle is provided on the outer side wall of the box.
The battery storage device of claim 68, wherein the shielding portion is fixedly connected to the handle.
68. The battery storage device of claim 68, wherein the handle is hinged to the case.