Energy storage device shell, energy storage device, energy storage station and electric equipment

Abstract

The invention relates to the technical field of energy storage, in particular to an energy storage shell, an energy storage device, an energy storage station and electric equipment. The energy storage shell comprises a box body and is provided with a containing space, and the containing space is suitable for containing the battery assembly; and the pressure relief plate is arranged in the accommodating space, the pressure relief plate is arranged on one side where the pole of the battery assembly is located, the pressure relief plate is provided with an exhaust channel, and the exhaust channel is opened in a one-way manner, so that the pole exhausts outwards through the exhaust channel. Through one-way exhaust of the exhaust channel, the flow path of the gas is limited during exhaust of the battery assemblies, so that the gas entering the exhaust channel does not influence other battery assemblies, the risk that thermal runaway is spread among a plurality of battery assemblies is reduced, and the safety of the energy storage shell is improved.

Description

Technical Field

[0001] The present application relates to the field of energy storage technology, and in particular to an energy storage device housing, an energy storage device, an energy storage station, and electrical equipment. Background Art

[0002] At present, with the rapid development of battery technology, energy storage devices assembled using it have been widely used in the field of energy storage. The energy storage devices can be used by simply connecting them through wires.

[0003] However, batteries are prone to thermal runaway during use, potentially emitting flammable gases or particulate matter. Because a large number of batteries are present in an energy storage device, these flammable gases or particulate matter can easily interfere with the thermal performance of other normally functioning batteries, increasing the likelihood of thermal runaway in other batteries and potentially posing a safety risk to the energy storage device. Summary of the Invention

[0004] The present application provides an energy storage device housing, an energy storage device, an energy storage station, and electrical equipment, which reduce thermal interference and improve the safety of the energy storage device by unidirectionally discharging gases generated during battery thermal runaway.

[0005] In order to achieve the above objectives, this application adopts the following technical solutions:

[0006] In one aspect, the present application provides an energy storage housing, comprising:

[0007] The box body is provided with a receiving space suitable for receiving the battery assembly;

[0008] The pressure relief plate is arranged in the accommodating space. The pressure relief plate is arranged on the side where the battery component pole is located. The pressure relief plate is provided with an exhaust channel. The exhaust channel is open in one direction to allow the pole to exhaust outward through the exhaust channel.

[0009] In a possible implementation, the energy storage housing further includes an exhaust assembly, which is disposed on the pressure relief plate and configured as a one-way open exhaust channel.

[0010] In one possible implementation, an exhaust hole is provided on the pressure relief plate, the exhaust hole is connected to the exhaust channel and is opposite to the battery assembly; the exhaust assembly cover is provided with an exhaust hole, and the exhaust assembly is configured to open the exhaust hole in one direction to open the exhaust channel in one direction.

[0011] In one possible implementation, the exhaust assembly includes:

[0012] The upper fixed shaft and the pressure relief plate are provided with an upper anti-rotation hole, and the upper fixed shaft is arranged in the upper anti-rotation hole;

[0013] An upper baffle is rotatably mounted on the pressure relief plate via an upper fixed shaft and is covered with an exhaust hole;

[0014] The exhaust hole is opposite to the pole, and the upper baffle is configured to rotate when the pole is exhausted to open the exhaust hole in one direction, so that the pole is connected to the exhaust channel.

[0015] In a possible implementation, the upper anti-rotation hole is arranged above the exhaust hole in the vertical direction.

[0016] In one possible implementation, the upper baffle includes:

[0017] The upper body part is rotatably mounted on the pressure relief plate via an upper fixed shaft;

[0018] The cover part is connected to the upper body part and covers the exhaust hole.

[0019] In a possible implementation, the upper baffle further includes an upper stop portion connected to a side of the upper body portion away from the cover portion;

[0020] The upper stopper is used to stop between the battery assembly and the pressure relief plate when the upper baffle rotates to open the exhaust hole, so as to isolate the pole of the battery assembly from the adjacent battery assembly.

[0021] In a possible implementation, a side of the upper stop portion away from the upper body portion abuts against the pressure relief plate.

[0022] In a possible implementation, the distance from the connection point between the upper body portion and the upper fixed shaft to the cover portion is equal to the distance to the upper stop portion.

[0023] In a possible implementation, the length of the upper stop portion is smaller than the length of the covering portion.

[0024] In a possible implementation, the diameter of the upper anti-rotation hole is equal to the width of the upper body portion.

[0025] In one possible implementation, the exhaust assembly further includes:

[0026] The lower fixed shaft and the pressure relief plate are provided with a lower anti-rotation hole, the lower anti-rotation hole is located on the side of the exhaust hole away from the upper anti-rotation hole, and the lower fixed shaft is arranged in the lower anti-rotation hole;

[0027] A lower baffle, which is movably inserted into the lower anti-rotation hole through a lower fixed shaft;

[0028] A connecting rod connected between the lower baffle and the upper baffle;

[0029] The connecting rod is used to drive the lower baffle to move in the lower anti-rotation hole when the upper baffle rotates;

[0030] The lower baffle is used to stop between the battery assembly and the pressure relief plate when the upper baffle opens the exhaust hole, so as to isolate the pole from the adjacent battery assembly.

[0031] In one possible implementation, the lower baffle includes:

[0032] A lower body portion, which is movably connected to the upper baffle through a connecting rod;

[0033] A lower stopper portion connected to the lower body portion;

[0034] The lower stopper is used to stop between the battery assembly and the pressure relief plate when the upper baffle opens the exhaust hole, so as to isolate the pole from the adjacent battery assembly.

[0035] In a possible implementation, the lower baffle is provided with a slide groove, which is provided on the lower main body and the lower stop portion, and the lower fixed shaft is movably provided in the slide groove so that the lower baffle can be movably passed through the lower anti-rotation hole.

[0036] In a possible implementation, an upper connecting shaft is provided on the cover portion, a lower connecting shaft is provided on the lower body portion, and both ends of the connecting rod are rotatably connected to the upper connecting shaft and the lower connecting shaft respectively.

[0037] In a possible implementation, a buffer pad is provided on the lower anti-rotation hole.

[0038] In a possible implementation, the exhaust assembly further includes a magnetic member and an adsorption member, one of which is disposed on the cover portion, and the other is disposed in the upper anti-rotation hole;

[0039] The magnetic attraction part and the adsorption part are used for adsorption and matching after the exhaust hole of the cover is opened to fix the upper baffle.

[0040] In one possible implementation, the exhaust assembly further includes a support plate, which is disposed on the pressure relief plate and located on the side of the exhaust hole away from the upper stop hole. The support plate is used to isolate the pole corresponding to the exhaust hole from the adjacent battery assembly.

[0041] In a possible implementation, a cover plate is further included. The cover plate is arranged on the accommodating space. The cover plate is provided with a pressure relief hole, which is communicated with the exhaust channel.

[0042] In a possible implementation, the energy storage housing further includes an exhaust pipe, the exhaust pipe connects the pressure relief plate and the cover plate, and the pressure relief hole and the exhaust channel are communicated through the exhaust pipe.

[0043] In a possible implementation, a labyrinth structure is provided between the exhaust duct and the pressure relief plate and / or the cover plate, and a sealing ring is provided outside the labyrinth structure.

[0044] In a possible implementation, the energy storage housing further includes a pressure relief cover, which is disposed on the pressure relief hole.

[0045] On the other hand, the present application provides an energy storage device, comprising the above-mentioned energy storage housing and battery assembly.

[0046] On the other hand, the present application provides an energy storage station, including the above-mentioned energy storage device.

[0047] On the other hand, the present application provides an electrical device comprising the above-mentioned energy storage device.

[0048] The energy storage housing, energy storage device, energy storage station and electrical equipment provided by the present application are provided. By arranging a pressure relief plate in the box, so that the pressure relief plate is opposite to the side where the battery assembly pole is located, and arranging an exhaust channel on the pressure relief plate, the exhaust channel can only be opened in one direction, and the pole is exhausted in one direction. When the battery assembly is exhausted, the one-way opened exhaust channel connects the corresponding battery assembly with the exhaust channel, thereby limiting the flow path of the gas. When the battery assembly has thermal runaway, the high-temperature gas generated by the thermal runaway of the battery is discharged in one direction through the exhaust channel, and other adjacent battery assemblies will not be affected, preventing these gases from entering the adjacent battery assemblies, thereby reducing the risk of thermal runaway spreading between multiple battery assemblies, reducing the probability of battery assembly runaway due to thermal interference, and improving the safety of the energy storage device. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0050] Figure 1 One of the structural schematic diagrams of the energy storage device provided in the embodiment of the present application;

[0051] Figure 2 The second structural diagram of the energy storage device provided in the embodiment of the present application;

[0052] Figure 3 for Figure 1 A schematic structural diagram of a pressure relief plate of the energy storage device shown;

[0053] Figure 4 for Figure 1 A schematic diagram of the structure of the pressure relief plate and exhaust assembly of the energy storage device shown;

[0054] Figure 5 for Figure 4 A schematic cross-sectional view of the pressure relief plate and exhaust assembly shown;

[0055] Figure 6 for Figure 4 A schematic structural diagram of the exhaust assembly shown;

[0056] Figure 7for Figure 6 A schematic structural diagram of the upper baffle of the exhaust assembly shown;

[0057] Figure 8 for Figure 2 A schematic diagram of a partial cross-sectional structure of the energy storage device shown when the exhaust hole is open;

[0058] Figure 9 for Figure 6 A schematic structural diagram of the lower baffle of the exhaust assembly shown;

[0059] Figure 10 for Figure 6 A schematic structural diagram of a connecting rod of the exhaust assembly shown;

[0060] Figure 11 for Figure 8 A schematic diagram of the structure of the energy storage device showing the gas flow direction when the exhaust hole is open;

[0061] Figure 12 for Figure 11 An enlarged structural diagram of part A of the energy storage device shown;

[0062] Figure 13 for Figure 11 Schematic diagram of the principle of self-locking of the pressure relief plate of the exhaust assembly shown;

[0063] Figure 14 A schematic structural diagram of another exhaust assembly of an energy storage device provided in an embodiment of the present application;

[0064] Figure 15 for Figure 1 Schematic diagram of the cross-sectional structure of the cover plate of the energy storage device shown.

[0065] Description of reference numerals:

[0066] 100-energy storage device; 10-box; 11-accommodation space; 12-accommodation chamber; 20-battery assembly; 21-pole; 30-pressure relief plate; 31-exhaust channel; 32-exhaust hole; 33-upper anti-rotation hole; 34-lower anti-rotation hole; 35-buffer pad; 40-exhaust assembly; 41-upper fixed shaft; 42-upper baffle; 421-upper main body; 422-cover; 423-upper stop; 424-upper connecting shaft; 43-lower fixed shaft; 44-connecting rod; 45-lower baffle; 451-lower main body; 452-lower stop; 453-slide; 454-lower connecting shaft; 46-support plate; 47-magnetic element; 48-adsorption element; 50-cover; 51-pressure relief hole; 60-exhaust duct; 61-maze structure; 62-sealing ring; 70-pressure relief cover. DETAILED DESCRIPTION

[0067] To make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0068] At present, with the rapid development of battery technology, energy storage devices assembled using it have been widely used in the field of energy storage. The energy storage devices can be used by simply connecting them through wires.

[0069] However, batteries are prone to thermal runaway during use, potentially emitting flammable gases or particulate matter. Because a large number of batteries are present in an energy storage device, these flammable gases or particulate matter can easily interfere with the thermal performance of other normally functioning batteries, increasing the likelihood of thermal runaway in other batteries and potentially posing a safety risk to the energy storage device.

[0070] In order to overcome the defects in the prior art, after repeated thinking and verification, the inventors found that if an exhaust channel is provided in the energy storage device, and an exhaust hole that can only be opened in one direction is provided on the exhaust channel, the pole of the battery assembly is matched with the exhaust hole, so that the gas discharged from the pole enters the exhaust channel through the exhaust hole, thereby limiting the flow path of the gas. When thermal runaway occurs in the battery assembly, the high-temperature gas generated by the thermal runaway of the battery is discharged unidirectionally through the exhaust hole, and the exhaust holes at other adjacent battery assemblies are not opened, so that the gas entering the exhaust channel will not affect other battery assemblies, preventing these gases from entering adjacent battery assemblies, thereby reducing the risk of thermal runaway spreading between multiple battery assemblies, reducing the probability of battery assembly runaway due to thermal interference, and improving the safety of the energy storage device.

[0071] In view of this, the present application provides an energy storage housing, comprising:

[0072] The box body is provided with a receiving space suitable for receiving the battery assembly;

[0073] The pressure relief plate is arranged in the accommodating space. The pressure relief plate is arranged on the side where the battery component pole is located. The pressure relief plate is provided with an exhaust channel. The exhaust channel is open in one direction to allow the pole to exhaust outward through the exhaust channel.

[0074] By arranging a pressure relief plate in the box, so that the pressure relief plate is opposite to the side where the battery assembly pole is located, and arranging an exhaust channel on the pressure relief plate, the exhaust channel can only be opened in one direction, and the pole is exhausted in one direction. When the battery assembly is exhausted, the one-way opened exhaust channel connects the corresponding battery assembly with the exhaust channel, thereby limiting the flow path of the gas. When thermal runaway occurs in the battery assembly, the high-temperature gas generated by the thermal runaway of the battery is discharged in one direction through the exhaust channel, and other adjacent battery assemblies will not be affected, preventing these gases from entering the adjacent battery assemblies, thereby reducing the risk of thermal runaway spreading between multiple battery assemblies, reducing the probability of battery assembly runaway due to thermal interference, and improving the safety of the energy storage device.

[0075] The contents of this application will be described in detail below with reference to the accompanying drawings so that those skilled in the art can understand the contents of this application more clearly and in detail.

[0076] The specific structure of the energy storage housing and various possible implementation methods are described in detail below.

[0077] Figure 1 This is one of the structural schematic diagrams of the energy storage device provided in the embodiment of the present application. Figure 2 This is the second structural diagram of the energy storage device provided in an embodiment of the present application. Figure 3 for Figure 1 Schematic diagram of the structure of the pressure relief plate of the energy storage device shown. Figure 4 for Figure 1 Schematic diagram of the structure of the pressure relief plate and exhaust assembly of the energy storage device shown. Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the pressure relief plate and exhaust assembly shown. Figure 6 for Figure 4 Schematic diagram of the structure of the exhaust component shown. Figure 7 for Figure 6 Schematic diagram of the structure of the upper baffle of the exhaust assembly shown. Figure 8 for Figure 2 The schematic diagram of the partial cross-section structure of the energy storage device shown is when the exhaust hole is open. Figure 9 for Figure 6 Schematic diagram of the structure of the lower baffle of the exhaust assembly shown. Figure 10 for Figure 6 Schematic diagram of the structure of the connecting rod of the exhaust assembly shown. Figure 11 for Figure 8 Schematic diagram of the structure of the energy storage device showing the gas flow direction when the exhaust hole is open. Figure 12 for Figure 11 Schematic diagram of the enlarged structure of part A of the energy storage device shown. Figure 13 for Figure 11 Schematic diagram of the principle of self-locking of the pressure relief plate of the exhaust assembly shown. Figure 14 for Figure 1Schematic diagram of the cross-sectional structure of the cover plate of the energy storage device shown. Figure 15 A schematic structural diagram of another exhaust assembly of the energy storage device provided in an embodiment of the present application.

[0078] like Figure 1 and Figure 2 As shown, the energy storage device 100 provided in an embodiment of the present application includes an energy storage shell and a battery assembly 20 disposed in the energy storage shell.

[0079] The energy storage shell includes a box body 10, a pressure relief plate 30, an exhaust assembly 40 and a cover plate 50. The box body 10 is provided with a accommodating space 11. The accommodating space 11 is suitable for accommodating the battery assembly 20. The pressure relief plate 30 is arranged in the accommodating space 11. The exhaust assembly 40 is arranged on the pressure relief plate 30. The cover plate 50 is covered on the accommodating space 11. The box body 10 is used to fix and protect the battery assembly 20 and the pressure relief plate 30 accommodated therein. The pressure relief plate 30 is used to provide physical isolation between the battery assemblies 20 and provide a pressure relief channel during exhaust. The exhaust assembly 40 is used to control the gas discharge path during thermal runaway. The cover plate 50 is used to encapsulate the energy storage device 100 to prevent the external environment from affecting the components inside the box body 10.

[0080] The battery assembly 20 is provided with a terminal 21. A pressure relief plate 30 is provided on the side of the battery assembly 20 where the terminal 21 is located. An exhaust passage 31 is provided in the pressure relief plate 30. The exhaust passage 31 is open in one direction, so that the terminal 21 can exhaust gas outward through the exhaust passage 31.

[0081] By setting a pressure relief plate 30 in the box body 10, the pressure relief plate 30 is opposite to the side where the pole 21 of the battery assembly 20 is located, and an exhaust channel 31 is set on the pressure relief plate 30, so that the exhaust channel 31 can only be opened in one direction, and the pole 21 is exhausted in one direction. When the battery assembly 20 is exhausted, the one-way opened exhaust channel 31 connects the corresponding battery assembly 20 with the exhaust channel 31, thereby limiting the flow path of the gas. When thermal runaway occurs in the battery assembly 20, the high-temperature gas generated by the thermal runaway of the battery is discharged in one direction through the exhaust channel 31, and other adjacent battery assemblies 20 will not be affected, preventing these gases from entering the adjacent battery assemblies 20, thereby reducing the risk of thermal runaway spreading among multiple battery assemblies 20, reducing the probability of thermal interference causing the battery assembly 20 to run away, and improving the safety of the energy storage device 100.

[0082] The exhaust assembly 40 is configured to unidirectionally open the exhaust passage 31 . The exhaust assembly 40 can be used to control the exhaust of the battery assembly 20 , so that high-temperature gases generated by battery thermal runaway are unidirectionally discharged into the exhaust passage 31 through the exhaust assembly 40 .

[0083] The pressure relief plate 30 is provided with an exhaust hole 32. The exhaust hole 32 is connected to the exhaust channel 31 and faces the terminal 21. The exhaust assembly 40 covers the exhaust hole 32. The cover plate 50 is provided with a pressure relief hole 51, which is connected to the exhaust channel 31. The exhaust assembly 40 is used to unidirectionally open the exhaust hole 32 when the terminal 21 is exhausted, thereby unidirectionally opening the exhaust channel 31, connecting the terminal 21 with the exhaust channel 31, thereby discharging high-temperature gases generated by thermal runaway and other gases out of the energy storage device 100 through the pressure relief hole 51.

[0084] By aligning the exhaust holes 32 on the pressure relief plate 30 with the poles 21 of the battery assembly 20 and providing a vent assembly 40 on the pressure relief plate 30 so that the vent assembly 40 covers the exhaust holes 32, the vent assembly 40 allows the vent holes 32 on the pressure relief plate 30 to be exhausted in one direction only. When the pole 21 is exhausted, the vent assembly 40 opens the vent hole 32, connecting the pole 21 with the exhaust channel 31, thereby restricting the flow path of the gas. When thermal runaway occurs in the battery assembly 20, the high-temperature gas generated by the thermal runaway is discharged unidirectionally into the exhaust channel 31 through the vent holes 32 opened by the vent assembly 40. The vent holes 32 of other adjacent battery assemblies 20 that are not covered by the vent assembly 40 are not opened. As a result, the gas entering the exhaust channel 31 will not affect other battery assemblies 20, preventing the gas from entering adjacent battery assemblies 20. This reduces the risk of thermal runaway propagating between multiple battery assemblies 20, reduces the probability of thermal interference causing battery assembly 20 runaway, and improves the safety of the energy storage device 100.

[0085] In one possible implementation, the battery assembly 20 may also be a plurality of individually arranged batteries, each having a terminal 21. Multiple batteries may be arranged layer by layer to form a battery assembly 20, which is then stacked and disposed in the accommodation space 11. Each terminal 21 corresponds to a vent 32 and a vent assembly 40.

[0086] In a possible implementation, a plurality of battery assemblies 20 are stacked in the accommodating space 11 , and the pressure relief plate 30 extends along the stacking direction of the plurality of battery assemblies 20 .

[0087] The stacking design enables high-density arrangement of battery assemblies 20 within a limited space, optimizing space utilization. The pressure relief plate 30 extends along the stacking direction of the multiple battery assemblies 20, helping to improve thermal management. By providing an exhaust channel 31 on the pressure relief plate 30, multiple battery assemblies 20 share the exhaust channel 31 during exhaust, simplifying the design and layout of the exhaust system, reducing the number and complexity of components, thereby lowering manufacturing and maintenance costs, and improving the utilization of the internal space of the box 10.

[0088] In a possible implementation, the pressure relief plate 30 divides the accommodating space 11 into at least two accommodating chambers 12 , and a plurality of battery assemblies 20 are stacked in each accommodating chamber 12 .

[0089] By separating the battery assemblies 20 into different cavities 12, the pressure relief plates 30 act as fire and heat barriers, limiting the impact of a single battery assembly 20 failure (such as thermal runaway) on the battery assemblies 20 in other cavities 12. This prevents a battery assembly 20 in one cavity 12 from spraying onto a battery assembly 20 in another cavity 12, thereby improving the overall safety of the system. Separating the battery assemblies 20 into different cavities 12 reduces the impact of single-point failures on the entire system, improving system reliability and stability.

[0090] In one possible implementation, the pressure relief plate 30 is made of an insulating, high-temperature-resistant material, such as ceramic. The pressure relief plate 30 can be formed using methods such as grouting or 3D printing. In other possible implementations, the pressure relief plate 30 can also be made of an insulating, high-temperature-resistant polymer material and formed using methods such as thermoplastic molding. The pressure relief plate 30 can also be coated with thermal insulation material or applied to the inner wall of the exhaust passage 31 to further enhance its heat isolation performance.

[0091] like Figure 3 、 Figure 4 and Figure 5 As shown, in one possible implementation, the exhaust assembly 40 includes an upper fixed shaft 41 and an upper baffle 42. The pressure relief plate 30 is provided with an upper anti-rotation hole 33, in which the upper fixed shaft 41 is disposed. The upper baffle 42 is rotatably mounted on the pressure relief plate 30 via the upper fixed shaft 41. The upper baffle 42 is used to cover the exhaust hole 32. When the pole 21 is exhausted, the upper baffle 42 is impacted by the gas and rotates about the upper fixed shaft 41, thereby unidirectionally opening the exhaust hole 32 and connecting the pole 21 with the exhaust channel 31.

[0092] When the terminal 21 vents, the upper baffle 42 automatically rotates in response to the gas, opening the vent 32. This eliminates the need for additional sensors or electronic control systems to detect and respond to pressure changes, simplifying the system and improving reliability. The one-way opening function of the upper baffle 42 ensures that gas can only be discharged in one direction, preventing gas from flowing back into the battery assembly 20. This reduces the risk of thermal runaway and improves the safety of the entire system.

[0093] The upper fixed shaft 41 and upper baffle 42 have a simple mechanical structure, making them easy to manufacture and assemble. This simple mechanical design generally offers high durability and a low failure rate. This design can adapt to varying pressure conditions by simply adjusting the design parameters of the upper baffle 42 and upper fixed shaft 41 to suit different application requirements.

[0094] like Figure 6 and Figure 7 As shown, in one possible implementation, the upper baffle 42 includes an upper body portion 421 and a cover portion 422. The upper body portion 421 is rotatably mounted on the pressure relief plate 30 via the upper fixed shaft 41, and the cover portion 422 is connected to the upper body portion 421 and covers the exhaust hole 32.

[0095] The cover portion 422 is specifically used to cover the exhaust hole 32. This design can ensure that the exhaust hole 32 is completely sealed under normal circumstances, thereby preventing gas leakage in the exhaust channel 31. The cover portion 422 will only be opened when needed to achieve precise gas control.

[0096] When the high-temperature flue gas is discharged from the pole 21 of the battery assembly 20, the high-temperature flue gas rushes through the upper baffle 42 fixed to the pressure relief plate 30 by the upper fixed shaft 41, and the cover portion 422 of the upper baffle 42 is lifted up by the high-temperature flue gas. Due to the size limit, its final position is rotated 90° compared to when it is not lifted up. When the high-temperature flue gas rushes through the upper baffle 42 and enters the exhaust channel 31 of the pressure relief plate 30, since the cover portion 422 of the upper baffle 42 on the opposite side and other positions is not blown up, the high-temperature flue gas will not pass through the pressure relief plate 30 on the opposite side or other positions, effectively preventing cross-spraying, reducing the probability of battery out of control due to thermal interference, and reducing the probability of accidents.

[0097] In a possible implementation, the upper anti-rotation hole 33 is provided above the exhaust hole 32 in the vertical direction.

[0098] By positioning the upper anti-rotation hole 33 above the vent 32, the upper baffle 42 can be prevented from rotating and improperly opening the vent 32 due to shaking during transportation. The upper baffle 42 naturally falls under the action of gravity and re-covers the vent 32 after the shaking stops, using gravity to assist in closing the vent 32 and ensure that the vent 32 remains sealed in the absence of external forces. This vertical arrangement design simplifies the mechanical structure of the upper baffle 42 because it does not require additional springs or other closing mechanisms to ensure the sealing of the vent 32, thereby reducing component complexity and potential failure points.

[0099] like Figure 7 As shown, in a possible implementation, the upper baffle 42 also includes an upper stop portion 423, which is connected to the side of the upper body portion 421 away from the cover portion 422. The upper stop portion 423 is used to stop between the battery assembly 20 and the pressure relief plate 30 when the upper baffle 42 opens the exhaust hole 32, so as to isolate the pole 21 from the adjacent battery assembly 20.

[0100] When the upper baffle 42 is flushed by the high-temperature flue gas, the upper stop portion 423 of the upper baffle 42 will be relatively perpendicular to the pressure relief plate 30 on one side of the pole 21 of the battery assembly 20. When the high-temperature flue gas discharged from the pole 21 rises, it will be blocked by the upper stop portion 423 of the upper baffle 42 and will not flow upward to cause thermal interference to other battery assemblies 20.

[0101] When the upper baffle 42 opens the exhaust hole 32, the upper stop 423 can effectively form a physical barrier between the battery assembly 20 and the pressure relief plate 30. The upper stop 423 can prevent the gas discharged from the pole 21 from directly affecting the adjacent battery assembly 20, reducing the risk of thermal runaway or other fault propagation, thereby improving the safety and reliability of the entire energy storage device 100.

[0102] In a possible implementation, a side of the upper stop portion 423 away from the upper body portion 421 abuts against the pressure relief plate 30 .

[0103] The design of the upper stop 423 abutting against the pressure relief plate 30 provides an additional support point, preventing the upper baffle 42 from accidentally opening under abnormal circumstances, thereby ensuring that the vent 32 remains sealed when not needed. Due to the stopper 423's retention, the vent 32 remains sealed in the absence of external forces, reducing unnecessary movement of the upper baffle 42 during the closing process, thereby reducing wear and extending the service life of the component.

[0104] In a possible implementation, the distance from the rotational connection point between the upper body portion 421 and the upper fixed shaft 41 to the cover portion 422 is equal to the distance to the upper stop portion 423 .

[0105] By making the two distances equal, the upper body 421 maintains good balance during rotation, reducing unnecessary tilt or deflection, thereby improving the stability and reliability of the system. Furthermore, the equal distances simplify the design, calculation, and manufacturing process of the upper baffle 42, reducing the need for complex geometry and precise alignment, thereby reducing manufacturing costs and difficulty.

[0106] In a possible implementation, the length of the upper stop portion 423 is smaller than the length of the covering portion 422 .

[0107] Because the length of the upper stopper 423 is shorter than that of the cover portion 422, the weight of the cover portion 422 is greater. Furthermore, due to the lower center of gravity of the cover portion 422, gravity naturally keeps the upper baffle 42 closed in the absence of external forces, ensuring that the exhaust hole 32 remains sealed under normal circumstances and preventing gas leakage. The longer cover portion 422 is more stable under the influence of gravity. During transportation or lifting, which may cause shaking, the upper baffle 42 may temporarily move. However, due to the effect of gravity, the cover portion 422 can automatically reset itself, ensuring that the system quickly returns to a sealed state after the shaking stops, thereby improving system reliability.

[0108] In a possible implementation, the diameter of the upper anti-rotation hole 33 is equal to the width of the upper body portion 421 .

[0109] When the upper baffle 42 is opened by the high-temperature flue gas discharged from the pole 21, its position changes by a maximum of 90 degrees counterclockwise. This is because the diameter of the upper anti-rotation hole 33 is designed to be equal to the width of the upper main body 421, thereby achieving length limitation.

[0110] Because the diameter of the upper anti-rotation hole 33 is equal to the width of the upper body 421, the body 421 deforms when it rotates to open the exhaust hole 32 and then becomes lodged in the upper anti-rotation hole 33, effectively preventing the upper baffle 42 from returning to its original position. This keeps the exhaust hole 32 open and ensures continuous exhaust from the system. By utilizing simple mechanical deformation to achieve locking, the system reduces reliance on external power or complex control systems, improving its overall reliability and durability.

[0111] like Figure 9 and Figure 10 As shown, in a possible implementation, the exhaust assembly 40 also includes a lower fixed shaft 43, a connecting rod 44 and a lower baffle 45. The pressure relief plate 30 is provided with a lower anti-rotation hole 34. The lower anti-rotation hole 34 is located on the side of the exhaust hole 32 away from the upper anti-rotation hole 33. The lower fixed shaft 43 is provided in the lower anti-rotation hole 34. The lower baffle 45 is movably inserted into the lower anti-rotation hole 34 through the lower fixed shaft 43. The connecting rod 44 is connected between the lower baffle 45 and the upper baffle 42 and is located in the exhaust channel 31. The connecting rod 44 is used to drive the lower baffle 45 to move in the lower anti-rotation hole 34 when the upper baffle 42 rotates. The lower baffle 45 is used to stop between the battery assembly 20 and the pressure relief plate 30 when the upper baffle 42 opens the exhaust hole 32, so as to isolate the pole 21 from the adjacent battery assembly 20.

[0112] The upper baffle 42 and the lower baffle 45 are connected by a connecting rod 44, so that the synchronous operation of the two can be achieved. When the upper baffle 42 rotates to open the exhaust hole 32, the connecting rod 44 drives the lower baffle 45 to move synchronously, ensuring the coordination and efficiency of the exhaust process.

[0113] When the upper baffle 42 is lifted up by the high-temperature flue gas, the lower baffle 45 will be pulled through the connecting rod 44, and the lower baffle 45 will block the downward high-temperature flue gas, reducing the risk of thermal runaway, improving the safety performance of the energy device 100, and thus preventing thermal interference.

[0114] When the exhaust hole 32 of the upper baffle 42 is opened, the lower baffle 45 can effectively form a physical barrier between the battery assembly 20 and the pressure relief plate 30. The lower baffle 45 can prevent the gas discharged from the pole 21 from directly affecting the adjacent battery assembly 20, reducing the risk of thermal runaway or other fault propagation, thereby improving the safety and reliability of the entire energy storage device 100.

[0115] like Figure 11 and Figure 12 As shown, specifically, when the upper baffle 42 opens the exhaust hole 32 , the lower baffle 45 and the upper stopper 423 are respectively located on both sides of the pole 21 , thereby isolating the pole 21 from the two adjacent battery assemblies 20 .

[0116] The cooperation between the lower baffle 45 and the upper stop 423 provides dual isolation protection for adjacent battery assemblies 20, effectively preventing high-temperature gases or other harmful substances from directly affecting adjacent battery assemblies 20, reducing the risk of chain reactions throughout the energy storage device 100 and improving system safety. Furthermore, the arrangement of the lower baffle 45 and the upper stop 423 helps guide the gas exhausted from the pole 21 along a predetermined path into the exhaust hole 32, optimizing airflow management and further improving heat dissipation and exhaust efficiency.

[0117] In one possible implementation, the lower baffle 45 includes a lower body 451 and a lower stop 452. The lower body 451 is movably connected to the upper baffle 42 via a connecting rod 44. The lower stop 452 is connected to the lower body 451. The lower stop 452 is used to stop between the battery assembly 20 and the pressure relief plate 30 when the upper baffle 42 opens the vent 32, thereby isolating the terminal 21 from the adjacent battery assembly 20.

[0118] When the upper baffle 42 is flushed by the high-temperature flue gas, the lower baffle 45 will be pulled by the connecting rod 44, and the lower stop portion 452 of the lower baffle 45 will be relatively perpendicular to the pressure relief plate 30 on the other side of the pole 21 of the battery assembly 20, blocking the downward high-temperature flue gas and preventing it from flowing downward and causing thermal interference to other battery assemblies 20. Through the arrangement of the upper baffle 42 and the lower baffle 45, the risk of thermal runaway is reduced, the safety performance of the energy device 100 is improved, and thermal interference is prevented.

[0119] By designing the lower baffle 45 as consisting of a lower body 451 and a lower stop 452, the design and manufacturing process of the lower baffle 45 is simplified while ensuring effective functionality. The lower body 451 is movably connected to the upper baffle 42 via a connecting rod 44, ensuring synchronized operation of the lower baffle 45 and the upper baffle 42, improving the operational reliability and efficiency of the system.

[0120] When the upper baffle 42 is open, the lower stop 452 forms a physical barrier between the battery assembly 20 and the pressure relief plate 30, effectively preventing high-temperature gases or other harmful substances from directly affecting adjacent battery assemblies 20, reducing the risk of chain reactions and improving system safety. The presence of the lower stop 452 also helps guide the exhaust gas along a predetermined path, optimizing airflow management and further improving heat dissipation and exhaust efficiency.

[0121] In one possible implementation, the lower baffle 45 is provided with a slide groove 453, which is provided on the lower main body 451 and the lower stop portion 452, and the lower fixed shaft 43 is movably provided in the slide groove 453 so that the lower baffle 45 can be movably passed through the lower anti-rotation hole 34.

[0122] By moving in the chute 453, the movement of the lower baffle 45 is smoother, reducing friction and wear with other components, thereby extending the service life of the components. The chute 453 provides a clear movement path for the movement of the lower baffle 45, allowing the lower baffle 45 to perform flexible linear movement under the guidance of the lower fixed shaft 43, ensuring that the lower baffle 45 can be accurately positioned during operation, helping to maintain consistent performance during the opening process and improving the reliability of the system. Through precise motion control, the lower baffle 45 can quickly reach and remain in the isolation position when needed, ensuring effective isolation of the pole 21 from the adjacent battery assembly 20. At the same time, the cooperation between the chute 453 and the lower fixed shaft 43 provides additional support and stability, ensuring that the lower baffle 45 will not accidentally deviate or shake during operation.

[0123] In a possible implementation, an upper connecting shaft 424 is provided on the cover portion 422 , a lower connecting shaft 454 is provided on the lower body portion 451 , and both ends of the connecting rod 44 are rotatably connected to the upper connecting shaft 424 and the lower connecting shaft 454 , respectively.

[0124] By configuring upper connecting shaft 424 and lower connecting shaft 454, connecting rod 44 provides reliable mechanical linkage between upper baffle 42 and lower baffle 45, ensuring synchronization of operation of upper baffle 42 and lower baffle 45, and improving the coordination and efficiency of the system. The configuration of upper connecting shaft 424 and lower connecting shaft 454 ensures effective force transmission, enabling upper baffle 42 and lower baffle 45 to achieve the desired movement with minimal energy consumption.

[0125] In a possible implementation, a buffer pad 35 is provided on the lower anti-rotation hole 34 .

[0126] The cushion 35 effectively absorbs and mitigates the impact and vibration generated by the lower baffle 45 during movement, reducing wear and fatigue damage to components and thus extending the system's service life. The cushion 35 also helps improve the sealing performance of the lower anti-rotation hole 34, preventing gas or liquid leakage, thereby enhancing system safety and efficiency. The cushion 35 provides additional support and stability, ensuring that the lower baffle 45 maintains its correct position during movement and reducing the risk of accidental displacement.

[0127] When the pole 21 of the battery assembly 20 discharges high-temperature flue gas, the upper baffle 42 on the pressure relief plate 30, facing the pole 21, is pushed open by the high-temperature flue gas discharged from the pole 21 due to airflow. When the upper baffle 42 is pushed open by the high-temperature flue gas discharged from the pole 21, its position changes by a maximum of 90 degrees due to its design, thus achieving length limitation.

[0128] When the high-temperature flue gas blows up the upper baffle 42, it drives the lower baffle 45 to move via the connecting rod 44. The lower baffle 45 has a sliding groove 453, forming a simple crank slider mechanism. Furthermore, a cushion 35 is placed beneath the lower baffle 45, creating a certain amount of deformation margin to facilitate the passage of the lower baffle 45 without direct contact with the pressure relief plate 30. At this point, the upper stop 423 of the upper baffle 42 and the lower stop 452 of the lower baffle 45 are both parallel to the ground, located above and below the battery assembly 20's pole 21, preventing thermal interference.

[0129] like Figure 13 As shown, in a possible implementation, the exhaust assembly 40 is also designed with a self-locking anti-return function.

[0130] The rise and fall of the upper baffle 42 is controlled by the ejection of high-temperature flue gas. When the ejection volume and ejection speed of the high-temperature flue gas decrease, the lifting angle of the upper baffle 42 may be unsatisfactory, resulting in uneven ejection of the high-temperature flue gas, which may cause the upper baffle 42 to fall back.

[0131] By designing the slot angle and size of the slide groove 453, when the upper baffle 42 rotates 90 degrees and fits into the upper anti-rotation hole 33 and tends to fall back, the force direction of the lower baffle 45 (the direction of F in the figure) is made perpendicular to the movement direction (the direction of V in the figure), so that the lower baffle 45 will not move under the tendency of the falling force, thereby achieving self-locking.

[0132] The mathematical relationship calculation formula that needs to be satisfied between specific dimensions is:

[0133] Ly=Lcosα,

[0134] Lx=Lsinα,

[0135] △x=Lx,

[0136] △y=L-Ly=L(1-cosα).

[0137] Wherein, L is the distance between the two connection points on the connecting rod 44. Ly is the distance between the two connection points in the vertical direction when the connecting rod 44 moves to the maximum position on the upper baffle 42. Lx is the distance between the two connection points in the horizontal direction when the connecting rod 44 moves to the maximum position on the upper baffle 42. α is the angle between the upper side wall of the slide 453 on the lower stop 452 and the horizontal direction. △x is the horizontal distance of the slide 453 on the lower stop 452. △y is the vertical distance of the slide 453 on the lower body 451.

[0138] By designing the slot angle and size of the slide slot 453 so that the size satisfies the above mathematical relationship, the exhaust assembly 40 can achieve self-locking and anti-return.

[0139] In a possible implementation, the portion of the pressure relief plate 30 that contacts the upper baffle 42 and the lower baffle 45 may be covered with a layer of soft material, such as rubber, to prevent the baffle from being damaged during use.

[0140] like Figure 14 As shown, in one possible implementation, the exhaust assembly 40 further includes a support plate 46. The support plate 46 is provided on the pressure relief plate 30 and is located on the side of the exhaust hole 32 away from the upper stop hole 33. The support plate 46 is used to isolate the pole 21 corresponding to the exhaust hole 32 from the adjacent battery assembly 20.

[0141] By using the support plate 46 to achieve the isolation function, the complexity and number of the lower baffles 45 can be reduced, thereby simplifying the structural design of the entire exhaust assembly 40. Reducing the lower baffles 45 can reduce the number of parts that need to be produced and assembled, thereby reducing manufacturing and assembly costs.

[0142] Because the lower baffle 45 is a movable component and the support plate 46 is a fixed component, reducing the number of movable parts reduces potential points of failure and improves the overall reliability and durability of the system. The support plate 46 provides a fixed isolation barrier that effectively isolates the terminal 21 corresponding to the exhaust hole 32 from the adjacent battery assembly 20, preventing the impact of high-temperature gases or other harmful substances.

[0143] In one possible implementation, the exhaust assembly 40 also includes a magnetic part 47 and an adsorption part 48, one of the magnetic part 47 and the adsorption part 48 is arranged in the cover part 422, and the other is arranged in the upper stop hole 33, and the magnetic part 47 and the adsorption part 48 are used to adsorb and cooperate after the cover part 422 opens the exhaust hole 32 to fix the upper baffle 42.

[0144] The magnetic fit provides a reliable fixing method that can quickly respond when the upper baffle 42 opens the exhaust hole 32, fix the upper baffle 42 in a predetermined position, prevent accidental closure due to vibration or other external forces, and ensure that the exhaust hole 32 remains open, which helps to quickly release pressure and improve system safety.

[0145] In a possible implementation, one of the magnetic element 47 and the adsorption element 48 is disposed on the upper stop portion 423 , and the other is disposed in the upper anti-rotation hole 33 .

[0146] like Figure 15 As shown, in a possible implementation, the energy storage device 100 further includes an exhaust pipe 60 , which connects the pressure relief plate 30 and the cover plate 50 , and the pressure relief hole 51 is connected to the exhaust channel 31 through the exhaust pipe 60 .

[0147] The exhaust duct 60 provides a clear path to guide the gas exhausted from the exhaust channel 31 to the exhaust duct 60, and the gas is discharged from the energy storage device 100 through the pressure relief hole 51 through the exhaust duct 60, which helps to effectively manage and control the airflow and prevent the disorderly diffusion of gas inside the device.

[0148] In a possible implementation, a labyrinth structure 61 is provided between the exhaust duct 60 and the pressure relief plate 30 and / or the cover plate 50 , and a sealing ring 62 is provided outside the labyrinth structure 61 .

[0149] In a possible implementation, the sealing ring 62 is sealing rubber.

[0150] After being discharged from the exhaust holes 32, the high-temperature flue gas passes through the exhaust passage 31 and reaches the exhaust duct 60. As it continues to rise, it passes through the connection between the exhaust duct 60, the pressure relief plate 30, and the cover plate 50. At this point, some of the high-temperature flue gas diffuses toward the connection. This portion of the high-temperature flue gas must first pass through the labyrinth structure 61 before contacting the sealing rubber. The labyrinth structure 61 reduces some of the high-temperature flue gas that diffuses toward the connection, while the remaining portion is blocked by the sealing rubber.

[0151] The labyrinth structure 61 combined with the sealing ring 62 provides multiple sealing barriers that can effectively prevent gas leakage and improve the sealing performance and safety of the system. The labyrinth structure 61 increases the difficulty of gas leakage through complex paths. Even in the event of failure of the sealing ring 62, it can still provide a certain degree of barrier effect, thereby increasing the safety of the system. The design of the labyrinth structure 61 can buffer pressure changes to a certain extent and reduce the direct impact on the sealing ring 62. At the same time, it can also reduce the temperature of the discharged high-temperature flue gas after passing through the labyrinth structure 61, thereby reducing the impact of the high-temperature flue gas on the sealing rubber and the wear and aging speed of the sealing ring 62, extending its service life, thereby improving the overall durability of the system.

[0152] In one possible implementation, the energy storage device 100 further includes a pressure relief cover 70, which is disposed on the pressure relief hole 51. If the pressure in the exhaust channel 31 and the exhaust pipe 60 is greater than the pressure value that the pressure relief cover 70 can withstand, the pressure relief cover 70 opens to relieve pressure.

[0153] Pressure relief cap 70 automatically opens when the system's internal pressure reaches a certain threshold, releasing excess pressure and preventing damage to the system due to overpressure, thereby improving system safety. Under normal operating conditions, pressure relief cap 70 covers pressure relief hole 51, preventing external dust, moisture, or other contaminants from entering the system through pressure relief hole 51, maintaining a clean and stable internal environment within energy storage device 100.

[0154] In one possible implementation, the pressure relief cover 70 may be electrically controlled and automatically open when it is detected that the gas pressure in the exhaust channel 31 and the exhaust pipe 60 reaches a certain value, thereby precisely controlling the pressure in the energy storage device 100 .

[0155] The energy storage device 100 provided in an embodiment of the present application includes a housing 10, a battery assembly 20, a pressure relief plate 30, and an exhaust assembly 40. The housing 10 is provided with a storage space 11. The battery assembly 20 is disposed in the storage space 11. The pressure relief plate 30 is disposed in the storage space 11. The pressure relief plate 30 is provided with an exhaust channel 31 and an exhaust hole 32. The exhaust hole 32 is connected to the exhaust channel 31 and faces the battery assembly 20. The exhaust assembly 40 is disposed on the pressure relief plate 30 and covers the exhaust hole 32. The exhaust assembly 40 is configured to open the exhaust hole 32 in one direction to allow the corresponding battery assembly 20 to communicate with the exhaust channel 31.

[0156] By setting a pressure relief plate 30 in the box body 10, the exhaust hole 32 on the pressure relief plate 30 is opposite to the battery assembly 20, and the exhaust assembly 40 is set on the pressure relief plate 30, so that the exhaust hole 32 is covered by the exhaust assembly 40, the pressure relief plate 30 can only be exhausted in one direction through the exhaust assembly 40. When the battery assembly 20 is exhausted, the exhaust assembly 40 opens the exhaust hole 32 to connect the battery assembly 20 with the exhaust channel 31, thereby limiting the flow path of the gas. When thermal runaway occurs in the battery assembly 20, the high-temperature gas generated by the thermal runaway of the battery is discharged in one direction through the exhaust hole 32 opened by the exhaust assembly 40. The exhaust holes 32 at other adjacent battery assemblies 20 are not opened by the exhaust assembly 40 covered by them, so that the gas entering the exhaust channel 31 will not affect other battery assemblies 20, and these gases are prevented from entering adjacent battery assemblies 20, thereby reducing the risk of thermal runaway spreading between multiple battery assemblies 20, reducing the probability of thermal interference causing the battery assembly 20 to run away, and improving the safety of the energy storage device 100.

[0157] An embodiment of the present application also provides an energy storage station, comprising the above-mentioned energy storage device.

[0158] In addition, an embodiment of the present application further provides an electric device, comprising the above-mentioned energy storage device 100. The electric device further comprises an electric device. The energy storage device 100 is used to provide electric energy to the electric device.

[0159] The electrical equipment in the embodiments of the present application may be a vehicle. For example, the vehicle may be a fuel-powered vehicle, a gas-powered vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle. Accordingly, the electrical device may be the vehicle's drive mechanism or the vehicle's control system.

[0160] In addition, the electrical equipment may also be other devices, such as ships, high-voltage energy storage systems and spacecraft, among which the spacecraft may include airplanes, rockets, space shuttles or spacecraft.

[0161] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0162] Generally speaking, terms should be understood, at least in part, based on the context in which they are used. For example, as used herein, the term "one or more" can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense, depending at least in part on the context. Similarly, terms such as "a," "an," or "the" can also be understood to convey either singular or plural usage, depending at least in part on the context.

[0163] It should be readily understood that “on,” “above,” and “over” in this application should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0164] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90° or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0165] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy storage housing, characterized in that: include: A box body (10) is provided with a receiving space (11), wherein the receiving space (11) is suitable for receiving a battery assembly (20); A pressure relief plate (30) is provided in the accommodating space (11). The pressure relief plate (30) is provided on a side where the pole (21) of the battery assembly (20) is located. The pressure relief plate (30) is provided with an exhaust channel (31). The exhaust channel (31) is open in one direction so that the pole (21) is exhausted to the outside through the exhaust channel (31).

2. The energy storage housing according to claim 1, characterized in that: The energy storage housing further comprises an exhaust assembly (40), wherein the exhaust assembly (40) is provided on the pressure relief plate (30), and the exhaust assembly (40) is configured to open the exhaust channel (31) in one direction.

3. The energy storage housing according to claim 2, characterized in that: The pressure relief plate (30) is provided with an exhaust hole (32), the exhaust hole (32) being in communication with the exhaust channel (31) and being opposite to the battery assembly (20); the exhaust assembly (40) covers the exhaust hole (32), and the exhaust assembly (40) is configured to unidirectionally open the exhaust hole (32) to unidirectionally open the exhaust channel (31).

4. The energy storage housing according to claim 3, characterized in that: The exhaust assembly (40) comprises: An upper fixed shaft (41), the pressure relief plate (30) is provided with an upper anti-rotation hole (33), and the upper fixed shaft (41) is arranged in the upper anti-rotation hole (33); an upper baffle (42), the upper baffle (42) being rotatably mounted on the pressure relief plate (30) via the upper fixed shaft (41) and covering the exhaust hole (32); The exhaust hole (32) is opposite to the pole (21), and the upper baffle (42) is configured to rotate when the pole (21) is exhausted, so as to open the exhaust hole (32) in one direction, thereby allowing the pole (21) to communicate with the exhaust channel (31).

5. The energy storage housing according to claim 4, characterized in that: In the vertical direction, the upper anti-rotation hole (33) is arranged above the exhaust hole (32).

6. The energy storage housing according to claim 4, characterized in that: The upper baffle (42) includes: an upper body portion (421), the upper body portion (421) being rotatably mounted on the pressure relief plate (30) via the upper fixed shaft (41); A cover portion (422) is connected to the upper body portion (421) and covers the exhaust hole (32).

7. The energy storage housing according to claim 6, characterized in that: The upper baffle (42) further comprises an upper stop portion (423), wherein the upper stop portion (423) is connected to a side of the upper body portion (421) away from the cover portion (422); The upper stopper (423) is used to stop between the battery assembly (20) and the pressure relief plate (30) when the upper baffle (42) rotates to open the exhaust hole (32), so as to isolate the pole (21) of the battery assembly (20) from the adjacent battery assembly (20).

8. The energy storage housing according to claim 7, characterized in that: The side of the upper stopper (423) away from the upper body (421) abuts against the pressure relief plate (30).

9. The energy storage housing according to claim 7, characterized in that: The distance between the connection point between the upper body portion (421) and the upper fixed shaft (41) and the cover portion (422) is equal to the distance between the connection point and the upper stop portion (423).

10. The energy storage housing according to claim 9, characterized in that: The length of the upper stop portion (423) is smaller than the length of the cover portion (422).

11. The energy storage housing according to any one of claims 6 to 10, characterized in that: The diameter of the upper anti-rotation hole (33) is equal to the width of the upper body portion (421).

12. The energy storage housing according to any one of claims 6 to 11, characterized in that: The exhaust assembly (40) further includes: A lower fixed shaft (43), the pressure relief plate (30) is provided with a lower anti-rotation hole (34), the lower anti-rotation hole (34) is located on a side of the exhaust hole (32) away from the upper anti-rotation hole (33), and the lower fixed shaft (43) is arranged in the lower anti-rotation hole (34); a lower baffle (45), the lower baffle (45) being movably inserted into the lower anti-rotation hole (34) via the lower fixed shaft (43); a connecting rod (44), the connecting rod (44) being connected between the lower baffle (45) and the upper baffle (42); The connecting rod (44) is used to drive the lower baffle (45) to move in the lower anti-rotation hole (34) when the upper baffle (42) rotates; The lower baffle (45) is used to stop between the battery assembly (20) and the pressure relief plate (30) when the upper baffle (42) opens the exhaust hole (32), so as to isolate the pole (21) from the adjacent battery assembly (20).

13. The energy storage housing according to claim 12, characterized in that: The lower baffle (45) comprises: a lower body portion (451), the lower body portion (451) being movably connected to the upper baffle (42) via the connecting rod (44); a lower stop portion (452), the lower stop portion (452) being connected to the lower main body portion (451); The lower stopper (452) is used to stop between the battery assembly (20) and the pressure relief plate (30) when the upper baffle (42) opens the exhaust hole (32), so as to isolate the pole (21) from the adjacent battery assembly (20).

14. The energy storage housing according to claim 13, characterized in that: The lower baffle (45) is provided with a slide groove (453), and the slide groove (453) is provided on the lower main body (451) and the lower stopper (452). The lower fixed shaft (43) is movably provided in the slide groove (453) so that the lower baffle (45) can be movably passed through the lower anti-rotation hole (34).

15. The energy storage housing according to claim 13, characterized in that: An upper connecting shaft (424) is provided on the cover portion (422), a lower connecting shaft (454) is provided on the lower body portion (451), and both ends of the connecting rod (44) are rotatably connected to the upper connecting shaft (424) and the lower connecting shaft (454), respectively.

16. The energy storage housing according to any one of claims 12 to 15, characterized in that: The lower anti-rotation hole (34) is provided with a buffer pad (35).

17. The energy storage housing according to any one of claims 6 to 16, characterized in that: The exhaust assembly (40) further includes a magnetic member (47) and an adsorption member (48), one of the magnetic member (47) and the adsorption member (48) being disposed on the cover portion (422), and the other being disposed in the upper anti-rotation hole (33); The magnetic attraction member (47) and the adsorption member (48) are used to adsorb and cooperate with each other after the cover portion (422) opens the exhaust hole (32) to fix the upper baffle (42).

18. The energy storage housing according to any one of claims 4 to 17, characterized in that: The exhaust assembly (40) further includes a support plate (46), which is provided on the pressure relief plate (30) and is located on a side of the exhaust hole (32) away from the upper anti-rotation hole (33), and the support plate (46) is used to isolate the pole (21) corresponding to the exhaust hole (32) from the adjacent battery assembly (20).

19. The energy storage housing according to any one of claims 1 to 18, characterized in that: It also includes a cover plate (50), the cover plate (50) is arranged on the accommodating space (11), the cover plate (50) is provided with a pressure relief hole (51), and the pressure relief hole (51) is communicated with the exhaust channel (31).

20. The energy storage housing according to claim 19, characterized in that: The energy storage housing further comprises an exhaust pipe (60), wherein the exhaust pipe (60) connects the pressure relief plate (30) and the cover plate (50), and the pressure relief hole (51) and the exhaust channel (31) are communicated through the exhaust pipe (60).

21. The energy storage housing according to claim 20, characterized in that: A labyrinth structure (61) is provided between the exhaust duct (60) and the pressure relief plate (30) and / or the cover plate (50), and a sealing ring (62) is provided outside the labyrinth structure (61).

22. The energy storage housing according to any one of claims 19 to 21, characterized in that: The energy storage housing further comprises a pressure relief cover (70), and the pressure relief cover (70) is disposed on the pressure relief hole (51).

23. An energy storage device, characterized in that: It comprises the energy storage housing and battery assembly as described in any one of claims 1 to 22.

24. An energy storage station, characterized in that: Comprising the energy storage device (100) as claimed in claim 23.

25. An electrical device, characterized in that: Comprising the energy storage device (100) as claimed in claim 23.

Images