Battery compartment and battery changing cabinet

Abstract

The utility model belongs to the technical field of battery replacement equipment, and provides a battery compartment and a battery replacement cabinet, the battery compartment comprises a compartment body, a compartment door and a pressure relief plate, the compartment body is used for placing a battery, the compartment body extends along a first direction, a pressure relief hole is formed in the top wall of the compartment body, and the compartment door is mounted outside the compartment body and is used for opening or closing the compartment body; the pressure relief plate is connected to the top of the bin body and covers the pressure relief hole, and heat dissipation holes communicated with the pressure relief hole are formed in the pressure relief plate; the pressure relief plate is used for being separated from the bin body under pushing of pressure in the bin body and exposing the pressure relief hole. The battery changing cabinet comprises a battery bin and a cabinet body, and the battery bin is located in the cabinet body. When the battery is out of control and deflagrates and the pressure in the bin body exceeds a certain range, the pressure relief plate can be separated from the bin body and expose the pressure relief hole under the action of pressure, so that the pressure in the bin body can be quickly released, the probability that the bin door is broken is reduced, and the safety of the battery bin is improved to a certain extent.

Description

Technical Field

[0001] This application belongs to the field of battery swapping equipment. More specifically, it relates to a battery compartment and a battery swapping cabinet. Background Art

[0002] A battery swapping cabinet is a device specifically used for battery charging and replacement, which consists of multiple independent battery compartments, and each battery compartment contains a battery. The battery swapping cabinet can store a certain number of batteries and charge the stored batteries. The battery swapping cabinet is widely used in fields such as electric bicycles. Taking the battery swapping cabinet serving electric bicycles as an example, users can put the depleted battery on the vehicle into the corresponding battery compartment of the battery swapping cabinet and take out the fully charged battery from the battery compartment of the battery swapping cabinet for replacement, so as to achieve rapid charging of the electric vehicle.

[0003] When the battery swapping cabinet is working, it will generate a certain amount of heat. If the heat cannot be dissipated in time, it may cause the batteries in the cabinet to undergo thermal runaway and release a large amount of heat and gas, causing the pressure in the corresponding battery compartment to rise sharply and break open the compartment door. At this time, the dangerous sources in the battery compartment will be directly exposed, and the batteries in the thermal runaway state are very likely to cause greater danger and destructive power. Summary of the Utility Model

[0004] This application aims to solve at least one of the technical problems in the related technologies to some extent. For this purpose, this application provides a battery compartment and a battery swapping cabinet to improve the safety of the battery compartment and the battery swapping cabinet.

[0005] To achieve the above object, the technical solution adopted in the embodiment of this application is: to provide a battery compartment, including:

[0006] A compartment body for placing batteries, the compartment body extends along a first direction, and a pressure relief hole is provided on the top wall of the compartment body;

[0007] A compartment door installed outside the compartment body and used to open or close the compartment body;

[0008] A pressure relief plate connected to the top of the compartment body and covering outside the pressure relief hole, and heat dissipation holes communicating with the pressure relief hole are provided on the pressure relief plate;

[0009] The pressure relief plate is used to separate from the compartment body under the push of the pressure in the compartment body and expose the pressure relief hole.

[0010] When a battery in the battery compartment experiences a thermal runaway failure, the battery will release a large amount of heat and cause the pressure in the compartment to rise sharply. At this time, the compartment will first exhaust and relieve pressure through the heat dissipation holes on the pressure relief plate. When the battery runs out of control and explodes, causing the pressure in the compartment to exceed a certain range, the above-mentioned pressure relief plate will be pushed open under the action of pressure, exposing the pressure relief holes. At this time, the pressure, heat, and flame generated by combustion in the compartment can be directly released into the cabinet body of the battery swapping cabinet through the pressure relief holes, achieving a rapid release of the pressure in the compartment, reducing the probability of the compartment door being broken open, and ensuring that the compartment door remains tightly closed. At this time, the battery in the thermal runaway state, as a hazard source, will not be directly exposed to the environment through the broken compartment door, which can improve the safety of the battery compartment to a certain extent.

[0011] Optionally, the pressure relief plate is connected to the compartment through a buckle.

[0012] Optionally, the number of the pressure relief holes is at least two, and all the pressure relief holes are arranged at intervals in the second direction, and the second direction is orthogonal to the first direction.

[0013] Optionally, the number of the heat dissipation holes is multiple and they are arranged in an array on the pressure relief plate, and any one of the heat dissipation holes communicates with at least one of the pressure relief holes.

[0014] Optionally, the pressure relief plate further includes a diversion plate corresponding to each heat dissipation hole, and the diversion plate is arranged on the side of the pressure relief plate facing away from the compartment;

[0015] The heat dissipation hole has a first edge and a second edge opposite to each other in the first direction, and the diversion plate is connected to the first edge of the heat dissipation hole and is inclined towards the second edge.

[0016] Optionally, the heat dissipation hole includes a third edge and a fourth edge opposite to each other in the second direction, and the two ends of the diversion plate in the second direction are respectively connected to the third edge and the fourth edge.

[0017] Optionally, spray holes are further provided on the top wall of the compartment, and the diversion plate is inclined towards the side away from the spray holes.

[0018] Optionally, the number of the spray holes is multiple, and some of the spray holes extend in the first direction, and some of the spray holes extend in the second direction.

[0019] Optionally, on the projection plane in the thickness direction of the pressure relief plate, the total projection area of the heat dissipation holes is smaller than the total projection area of the pressure relief holes.

[0020] An embodiment of the present application further provides a battery swapping cabinet, including a battery compartment and a cabinet body. The battery compartment is the above-mentioned battery compartment, and the battery compartment is located in the cabinet body.

[0021] The beneficial effects of the battery compartment and the battery swapping cabinet provided by this application are as follows: Compared with the related art, the battery compartment provided by the embodiments of this application can achieve exhaust and pressure relief inside the compartment by using the pressure relief holes and heat dissipation holes located on its top wall; when the battery gets out of control and explodes, causing the pressure inside the compartment to exceed a certain range, the excessive pressure will directly push open the pressure relief plate installed outside the pressure relief hole and expose the pressure relief hole. At this time, the pressure, heat, and flame generated by combustion inside the compartment can be directly released into the cabinet body of the battery swapping cabinet through the pressure relief hole, thereby timely and effectively reducing the air pressure inside the compartment and eliminating potential safety hazards that may occur due to excessive air pressure in the battery compartment, ensuring that the compartment door remains tightly closed during this process. At this time, the battery in the thermal runaway state, as a source of danger, can be isolated from the external environment by the barrier of the compartment door, improving the safety of the battery compartment and the battery swapping cabinet to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of this application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic three-dimensional structure diagram of the battery compartment provided by the embodiments of this application;

[0024] Figure 2 It is a schematic explosion structure diagram of the battery compartment provided by the embodiments of this application;

[0025] Figure 3 It is a schematic diagram of the pressure relief flow direction of the battery compartment provided by the embodiments of this application under normal conditions;

[0026] Figure 4 It is a schematic diagram of the pressure relief flow direction of the battery compartment provided by the embodiments of this application after the pressure relief plate is detached;

[0027] Figure 5 It is a schematic side view structure diagram of the pressure relief plate adopted by the embodiments of this application;

[0028] Figure 6 It is a schematic structure diagram of the buckle adopted by the embodiments of this application.

[0029] Among them, the reference numerals in the drawings are as follows:

[0030] 10. Battery compartment; 1. Compartment body; 11. Open end; 12. Pressure relief hole; 13. Spraying hole; 2. Pressure relief plate; 21. Heat dissipation hole; 211. First edge; 212. Second edge; 213. Third edge; 214. Fourth edge; 22. Deflector; 3. Buckle. Detailed implementation mode

[0031] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer, the following further details this application in combination with the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0034] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected to", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected or indirectly connected through an intermediate medium, and can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0037] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] As one of the most convenient and fast means of transportation for people to travel short distances, electric bicycles have a large number of users. In recent years, the rapid development of takeout, express delivery, flash delivery and other instant delivery industries has led to an increasing number of electric bicycles. The battery life of electric bicycles has gradually failed to meet the needs of the delivery industry. Correspondingly, the delivery industry has an increasing demand for charging. Based on this situation, battery swap cabinets came into being. Riders can quickly replace batteries in the battery swap cabinet without having to wait for a long time to charge, which improves work efficiency.

[0039] In order to prevent theft, existing battery swap cabinets generally set the battery compartment to a relatively closed state. Once a battery in a battery compartment has a thermal runaway failure, the temperature inside the battery will rise sharply and release a large amount of heat, causing the pressure in the battery compartment to rise rapidly. When the pressure in the battery compartment is too high, there is a risk of directly breaking open the compartment door, which is very likely to cause more serious safety accidents.

[0040] Since the battery swap cabinet is in a charging state for a long time, for safety reasons, it is necessary to ensure that the battery swap cabinet and the battery compartment structure inside it have high safety, so as to minimize the risks caused by battery thermal runaway failures and protect the safety of the surrounding environment and personnel.

[0041] Therefore, an embodiment of the present application provides a battery compartment to solve the problem in the prior art that the battery compartment door is easily rushed open when high voltage occurs inside the battery compartment, thereby improving the safety of the battery compartment and the charging cabinet having the battery compartment.

[0042] Please refer to Figures 1-6 , the battery compartment 10 provided in the embodiment of the present application includes a compartment body 1, a compartment door, and a pressure relief plate 2. Among them, the compartment body 1 is used to place batteries, and a pressure relief hole 12 is provided on the top wall of the compartment body 1. The compartment door is installed outside the compartment body 1 and is used to open or close the compartment body 1. The pressure relief plate 2 is connected to the top of the compartment body 1 and covers outside the pressure relief hole 12. A heat dissipation hole 21 communicating with the pressure relief hole 12 is provided on the pressure relief plate 2. When high pressure appears inside the compartment body 1, at this time, the pressure relief plate 2 will be separated from the compartment body 1 (that is, lifted from the compartment body 1) under the push of the pressure inside the high-pressure compartment body 1 and expose the pressure relief hole 12.

[0043] Under normal conditions, the heat released by the batteries during charging inside the battery compartment 10 can be discharged through the pressure relief hole 12 and the heat dissipation hole 21 to reduce the temperature inside the compartment body 1, avoid heat concentration inside the compartment body 1, and ensure the safety during the battery charging process. As Figure 3 shown, the arrows in the figure are the air flow directions. When the air flows, it can take away part of the heat inside the compartment body 1; when an accident occurs to the battery inside the compartment body 1, resulting in a thermal runaway failure, for example, due to external force impact or the quality problem of the battery itself, etc., the battery will release a large amount of heat and cause the pressure inside the compartment body 1 to rise sharply. At this time, the compartment body 1 will give priority to exhausting and relieving pressure through the heat dissipation hole 21 on the pressure relief plate 2; when the battery runs out of control and explodes and causes the pressure inside the compartment body 1 to exceed a certain range, the above-mentioned pressure relief plate 2 will be pushed open under the action of pressure and expose the pressure relief hole 12. At this time, the pressure, heat, flame, etc. generated by the combustion inside the compartment body 1 can be directly released into the cabinet body of the battery swapping cabinet through the pressure relief hole 12. As Figure 4 shown, the arrows in the figure are the air flow directions. When the air flows, it can take away part of the heat inside the compartment body 1. After the pressure relief plate 2 is separated from the compartment body 1, the above-mentioned pressure relief hole 12 can be directly communicated with the cabinet body. At this time, the heat and pressure inside the compartment body 1 can be directly and quickly released into the cabinet body through the pressure relief hole 12 to reduce the pressure inside the compartment body 1 and the probability of the compartment door being broken, and ensure that the compartment door can remain tightly closed. At this time, the battery in the thermal runaway state as a hazard source will not be directly exposed to the environment through the broken compartment door, which can improve the safety of the battery compartment 10 to a certain extent.

[0044] Since the pressure relief plate 2 is arranged outside the pressure relief hole 12, it will generate a certain resistance to the air flow flowing out through the pressure relief hole 12; when the pressure relief plate 2 is lifted from the compartment body 1 under the action of pressure, the pressure relief hole 12 is directly exposed, and the resistance provided by the pressure relief plate 2 disappears. At this time, the top wall of the compartment body can directly obtain a larger effective air flow area through the pressure relief hole 12, and the air flow has more space to pass through, which can greatly increase the air flow rate and help quickly reduce the pressure inside the compartment body 1.

[0045] Refer to Figure 1 and Figure 2On the projection surface of the pressure relief plate 2 in the thickness direction, the total projection area of ​​the heat dissipation holes 21 is smaller than the total projection area of ​​the pressure relief holes 12 .

[0046] Most importantly, the opening of the pressure relief plate 2 is driven by the pressure in the bin body 1 and does not need to be driven by electric energy. Its triggering has high accuracy and will not fail due to accidents such as power failure, and the structure is relatively reliable.

[0047] Specifically, the above-mentioned warehouse body 1 is in the shape of a rectangular parallelepiped and can be extended along the first direction. An opening 11 is formed at one end of the warehouse body 1 in the first direction. Figure 1 and Figure 2 As shown in the figure, the direction indicated by X is the first direction. The above-mentioned warehouse door is used to open or close the opening 11.

[0048] As one of the optional implementations of this embodiment, the warehouse door is rotatably connected to the warehouse body 1 to open or close the above-mentioned opening 11.

[0049] In order to ensure that the pressure relief plate 2 can be opened and expose the pressure relief hole 12 before the pressure in the warehouse body 1 reaches the critical value for the warehouse door to be broken, it is necessary to determine the connection structure and method between the pressure relief plate 2 and the warehouse body 1 based on the connection strength between the warehouse door and the warehouse body 1 in the normal locked state.

[0050] As one of the optional implementations of this embodiment, the pressure relief plate 2 is connected to the bin body 1 via a buckle 3.

[0051] The buckle 3 can be broken under the huge pressure released by the battery to release the pressure relief plate 2, so that the pressure relief plate 2 can be smoothly separated from the compartment body 1.

[0052] like Figure 1 and Figure 2 As shown, the pressure relief plate 2 is provided with a first mounting hole, and a second mounting hole is provided at a corresponding position on the top wall of the warehouse body 1. The pressure relief plate 2 can be fixed on the top wall of the warehouse body 1 by means of buckles 3 penetrating the first mounting hole and the second mounting hole. When the pressure in the warehouse body 1 increases to a level that can break the buckle 3, the pressure relief plate 2 can be lifted relative to the top wall of the warehouse body 1.

[0053] The shape of the buckle 3 is as follows: Figure 6 As shown, one end of the buckle 3 near the pressure relief plate 2 has two hooks arranged opposite to each other, and there is a clearance space between the two hooks. The two hooks can generate a recoverable elastic deformation in the radial direction during the process of inserting the two hooks into the first mounting hole through the second mounting hole to invade the clearance space. When the hook of the buckle 3 passes through the first mounting hole, the deformation is restored under the elastic action and the housing 1 and the pressure relief plate 2 are connected. The buckle 3 can be made of plastic or other materials.

[0054] In this embodiment and other similar embodiments, the number of the above-mentioned first mounting holes is four and they are sequentially distributed at the four corners of the pressure relief plate 2. Correspondingly, the number of the second mounting holes and the buckles 3 is also four.

[0055] The material and number of the buckles 3 can be adaptively adjusted according to needs.

[0056] As an alternative embodiment of this embodiment, the number of the pressure relief holes 12 is at least two and all the pressure relief holes 12 are arranged at intervals along the second direction, and the second direction is orthogonal to the first direction.

[0057] In order to improve the pressure relief efficiency of the pressure relief holes 12, the number of the pressure relief holes 12 should be as large as possible and occupy as large a top wall area as possible; however, considering the stability and strength of the structure of the bin body 1, in addition to controlling the position and size of the distribution area of the pressure relief holes 12 on the top wall, it is also necessary to control the number and the arrangement manner of each pressure relief hole 12.

[0058] Specifically, as Figure 2 shown, the number of the above-mentioned pressure relief holes 12 is two and the two pressure relief holes 12 are arranged at intervals, and the direction indicated by Y in the figure is the second direction.

[0059] There is a strip-shaped structure extending along the first direction between the two pressure relief holes 12 arranged at intervals. This strip-shaped structure can not only be used to separate the two pressure relief holes 12, but also helps to maintain the strength and bearing capacity of the top wall, ensuring that the top wall will not generate deformation exceeding the design requirements due to the excavation of the pressure relief holes 12.

[0060] As an alternative embodiment of this embodiment, a structure strengthening plate is provided between any two adjacent pressure relief holes 12, and the structure strengthening plate extends along the first direction and is arranged on the top wall.

[0061] This structure strengthening plate can be arranged on the side of the top wall facing the inside of the bin body 1 (not shown in the figure). At this time, the strength of the top wall of the structure bin body 1 can be further improved without affecting the installation of the pressure relief plate 2.

[0062] This structure strengthening plate can be installed on the bin body 1 by other connection methods known in the art such as pasting and welding.

[0063] As an alternative embodiment of this embodiment, spray holes 13 are further provided on the top wall of the bin body 1, and the spray holes 13 and the pressure relief holes 12 are arranged at intervals along the first direction, as Figure 1 and Figure 2 shown.

[0064] For safety considerations, a fire-fighting device is generally provided outside the battery compartment 10. The fire-fighting device includes a water storage tank and a spray head connected by a drain pipe, and the spray head is installed at the above-mentioned spray hole 13. When the fire-fighting device is activated, the water in the water storage tank can be transported to the spray head through the drain pipe and sprayed into the housing 1 through the spray head for battery cooling and fire extinguishing.

[0065] Of course, the above-mentioned fire-fighting device can also be other fire-fighting equipment with fire-fighting functions. The above-mentioned fire-fighting equipment can spray fire-fighting foam or fire extinguishing agent into the housing 1 through the spray hole 13 for battery fire extinguishing.

[0066] The fire-fighting device can also be other equipment with fire-fighting functions known in the art.

[0067] Since both the spray hole 13 and the pressure relief hole 12 are arranged on the top wall of the housing 1, the pressure relief hole 12 will not be blocked by the water or fire extinguishing agent sprayed into the housing 1 through the spray hole 13. The high-pressure gas and heat in the housing 1 can be normally discharged through the pressure relief hole 12, ensuring that the pressure relief hole 12 always maintains a better pressure relief and exhaust function, and the materials sprayed out of the spray hole 13 will not be discharged through the pressure relief hole 12 before they play a role (for example, when the pressure relief hole 12 is arranged on the bottom wall of the housing 1 or in a region of the side wall relatively close to the bottom wall, there is a possibility that the materials sprayed out of the spray hole 13 will be directly discharged through the pressure relief hole 12, which will cause some materials to not play their effects and result in waste).

[0068] As an optional implementation manner of this embodiment, the number of spray holes 13 is multiple, and some spray holes 13 extend along the first direction, and some spray holes 13 extend along the second direction.

[0069] As Figure 1 shown, the number of the above-mentioned spray holes 13 is 5, and four of them are arranged along the first direction, and the other one is arranged along the second direction.

[0070] The size and distribution mode of the spray holes 13 can be adaptively adjusted according to the installation requirements of the corresponding fire-fighting equipment and the size of the housing 1.

[0071] As an optional implementation manner of this embodiment, the number of heat dissipation holes 21 is multiple and arranged in an array on the pressure relief plate 2, and any one of the heat dissipation holes 21 communicates with at least one pressure relief hole 12 to facilitate the heat dissipation in the housing 1.

[0072] Specifically, the number of the above-mentioned heat dissipation holes 21 is 14, and each heat dissipation hole 21 is arranged in two rows and evenly spaced along the first direction, as Figure 1 and Figure 2 shown. In some embodiments, on the projection plane in the thickness direction of the pressure relief plate 2, the projection of the heat dissipation hole 21 falls within the projection of the pressure relief hole 12.

[0073] It should be noted that, in order to avoid the influence of the heat dissipated by the heat dissipation holes 21 during operation on the fire-fighting equipment installed at the spray holes 13, as an optional implementation manner of this embodiment, a flow guide plate 22 for guiding the air flow to flow in a direction away from the spray holes 13 is formed on the heat dissipation holes 21. The number of the flow guide plates 22 is the same as that of the heat dissipation holes 21 and they are arranged in one-to-one correspondence. The flow guide plate 22 is arranged on the side of the pressure relief plate 2 facing away from the bin body 1.

[0074] The structure of the above-mentioned flow guide plate 22 is as Figure 1 , Figure 2 and Figure 5 shown.

[0075] In order to ensure that the flow guide plate 22 can achieve the flow guiding effect, as shown in Figure 5 , the above-mentioned heat dissipation holes 21 are in a strip hole structure, having a first edge 211 and a second edge 212 opposite to each other in the first direction. The first edge 211 is located on the side of the heat dissipation hole 21 facing the spray hole 13. The flow guide plate 22 is connected to the first edge 211 of the heat dissipation hole 21 and is inclined towards the second edge 212. At this time, the flow guide plate 22 is inclined towards the side facing away from the spray hole 13.

[0076] The length of the above-mentioned flow guide plate 22 in the second direction is not less than the length of the first edge 211, that is to say, the flow guide plate 22 can extend along the first edge 211 of the corresponding heat dissipation hole 21.

[0077] As an optional implementation manner of this embodiment, the heat dissipation hole 21 further includes a third edge 213 and a fourth edge 214 opposite to each other in the second direction. The two ends of the flow guide plate 22 in the second direction are respectively connected to the third edge 213 and the fourth edge 214.

[0078] By connecting the two ends of the flow guide plate 22 to the third edge 213 and the fourth edge 214 respectively, the flow guide plate 22 can better guide the air flow direction and prevent the air flow from spreading after flowing through the third edge 213 and the fourth edge 214.

[0079] As shown in Figure 2 , at this time, at least part of the projection of the flow guide plate 22 coincides with the projection part of the connected heat dissipation hole 21.

[0080] When the bin body 1 is in an atmospheric pressure state, the above-mentioned pressure relief plate 2 can not only release the heat formed in the bin body 1 through the heat dissipation holes 21, but also use the special shape structure of the flow guide plate 22 to guide the air flow in a better way, reducing the influence of the heat on some other components arranged outside the bin body 1, such as fire-fighting equipment, etc. In addition, the above-mentioned flow guide plate 22 can also block dust, sundries, etc. from entering the bin body 1, and can play a certain protective effect on the internal space of the bin body 1.

[0081] It can be understood that, compared with the related art, the battery compartment 10 provided by each of the above embodiments can achieve exhaust pressure relief of the battery compartment 10 under normal pressure and high pressure through the pressure relief holes 12 arranged on the top wall of the compartment body 1 and the pressure relief plate 2 that can be lifted under high pressure, thereby minimizing the possibility that the compartment door is forced open due to excessive pressure inside the compartment body 1, effectively improving the safety of the battery compartment 10, and avoiding the threat of the battery in the thermal runaway state to the surrounding environment and human safety. In addition, the above pressure relief plate 2 can also guide the airflow released inside the compartment body 1 through the diversion plate located thereon, and at the same time can block dust, debris, etc. from entering the compartment body 1, providing a certain protection function for the space and equipment inside the compartment body 1.

[0082] The embodiment of the present application also provides a battery swapping cabinet, which includes a battery compartment 10 and a cabinet body. The battery compartment 10 is the above-mentioned battery compartment 10, and the battery compartment 10 is located inside the cabinet body.

[0083] The above cabinet body wraps the battery compartment 10 inside, which can achieve the effect of secondary explosion protection. When the battery in a certain battery compartment 10 undergoes thermal runaway or even explodes and burns, the battery compartment 10 can serve as a primary explosion protection barrier, and the cabinet body can serve as a secondary explosion protection barrier, effectively preventing the spread of fire and further improving the safety of the battery swapping cabinet.

[0084] As an optional implementation manner of this embodiment, the number of battery compartments 10 is multiple and all the battery compartments 10 are arranged at intervals.

[0085] Specifically, the shape, size, and number of the battery compartment 10 can be determined according to the shape and size of the cabinet body. Exemplarily, the above cabinet body can be in a cuboid shape and can be vertically installed on the ground. The number of battery compartments 10 can be at least four and arranged in sequence or side by side along the vertical direction. In this way, each battery compartment 10 can be relatively independent and spaced apart.

[0086] When a battery in a certain battery compartment 10 has a thermal runaway failure, the other battery compartments 10 can be protected from being affected, ensuring the safety of the batteries in the other battery compartments 10.

[0087] To further improve the safety of the cabinet body, it is provided that at least one side wall of the cabinet body is provided with an exhaust window, a ventilation duct is formed between the exhaust window and the compartment body 1, and the pressure relief hole 12 of the compartment body 1 is communicated with the ventilation duct. Such a design can utilize the ventilation duct to discharge the heat and pressure discharged through the pressure relief hole 12, so as to avoid heat accumulation inside the cabinet body, and at the same time helps to reduce the pressure inside the cabinet body, further improving the safety of the battery swapping cabinet.

[0088] As an optional implementation manner of this embodiment, the above compartment door can also be connected to the cabinet body. This connection method can be any connection method known in the art.

[0089] It can be understood that, compared with the related art, the battery swapping cabinet provided by each of the above embodiments can not only achieve the first protection for the thermally out-of-control battery through the battery compartment 10, but also provide secondary protection for the battery through the cabinet body. The battery in the thermally out-of-control state, as a hazard source, can be isolated from the external environment under the barrier of the cabinet door and the cabinet body, thereby improving the safety of the battery swapping cabinet to a certain extent.

[0090] The above are only the preferred embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery compartment, characterized in that: include: A storage body, the storage body is used to place batteries, the storage body is extended along a first direction, and a pressure relief hole is provided on the top wall of the storage body; A door, which is installed outside the warehouse and is used to open or close the warehouse; A pressure relief plate, the pressure relief plate is connected to the top of the bin body and covers the outside of the pressure relief hole, and the pressure relief plate is provided with a heat dissipation hole communicating with the pressure relief hole; The pressure relief plate is used to separate from the bin body under the pressure in the bin body and expose the pressure relief hole.

2. The battery compartment according to claim 1, characterized in that: The pressure relief plate is connected to the warehouse body through a buckle.

3. The battery compartment according to claim 1 or 2, characterized in that: The number of the pressure relief holes is at least two and all of the pressure relief holes are arranged at intervals along a second direction, and the second direction is orthogonal to the first direction.

4. The battery compartment according to claim 3, characterized in that: The number of the heat dissipation holes is multiple and they are arranged in an array on the pressure relief plate, and any one of the heat dissipation holes is connected to at least one of the pressure relief holes.

5. The battery compartment according to claim 4, characterized in that: The pressure relief plate further includes a guide plate corresponding to the heat dissipation holes one by one, and the guide plate is arranged on a side of the pressure relief plate facing away from the bin body; The heat dissipation hole has a first edge and a second edge opposite to each other along the first direction, and the guide plate is connected to the first edge of the heat dissipation hole and is inclined toward the second edge.

6. The battery compartment according to claim 5, characterized in that: The heat dissipation hole comprises a third edge and a fourth edge opposite to each other along the second direction, and two ends of the guide plate in the second direction are respectively connected to the third edge and the fourth edge.

7. The battery compartment according to claim 5, characterized in that: A spray hole is also provided on the top wall of the bin body, and the guide plate is inclined toward a side facing away from the spray hole.

8. The battery compartment according to claim 7, characterized in that: There are multiple spray holes, some of which extend along the first direction, and some of which extend along the second direction.

9. The battery compartment according to claim 1, characterized in that: On the projection surface in the thickness direction of the pressure relief plate, the total projection area of ​​the heat dissipation holes is smaller than the total projection area of ​​the pressure relief holes.

10. A power exchange cabinet, characterized in that: include: A battery compartment, wherein the battery compartment is the battery compartment according to any one of claims 1 to 8; A cabinet, wherein the battery compartment is located inside the cabinet.

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