Energy storage box and energy storage equipment
By tilting the mating surface of the energy storage box and installing a sealing gasket, the problem of water droplets entering the containment cavity in low-temperature environments is solved, improving the safety of the battery cluster and the reliability of the energy storage system.
Patent Information
- Application Number
- CN202520331749.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-27
AI Technical Summary
In low-temperature environments, water droplets on the outer surface of the battery box can easily enter the cavity through the gaps in the box door, leading to reduced insulation performance, corrosion of the battery cells and components, and affecting the normal operation and service life of the energy storage system.
The energy storage tank is designed with an acute-angled inclined docking surface, and a sealing gasket is installed at the docking surface. The pressure when the tank door is closed enhances the sealing effect and prevents water droplets from entering the containment cavity.
It improves the safety of battery clusters, prevents water droplets from entering the containment cavity, protects the cells and components, and extends the service life of the energy storage system.
Smart Images
Figure CN223941924U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of energy storage equipment technology, and in particular to an energy storage box and energy storage equipment. Background Technology
[0002] In related technologies, when the battery casing is in a low-temperature environment, water droplets easily form on its outer surface. These droplets inevitably enter the containment cavity through the gap between the first and second casing doors, leading to a reduction in the insulation performance of the high-voltage electrical insulation medium. In battery management systems and low-voltage control electrical components, water droplets corrode the battery cells, circuit boards, and other components, affecting the normal operation and lifespan of the energy storage system, causing internal short circuits within the battery cells, and potentially leading to fires or explosions. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of this invention is to provide an energy storage box in which both the first and second mating surfaces are inclined, and a first sealing gasket is installed at the first and / or second mating surfaces, making it difficult for water droplets to enter the receiving cavity through the gap between the first and second mating surfaces, thus improving the safety of the battery cluster.
[0004] This utility model also proposes an energy storage device having the above-mentioned energy storage box.
[0005] According to a first aspect of the present invention, an energy storage box includes: a battery box having a receiving cavity opening to one side, wherein a battery cluster is disposed within the receiving cavity; a switch door installed at the opening of the battery box, the switch door including a first door and a second door that are mated to each other, the first door having a first mating surface facing the second door, the second door having a second mating surface facing the first door, the surface of the battery box facing the switch door being a first surface, the first mating surface and the second mating surface being parallel to each other and the included angle between them being acute angles; and a first sealing gasket installed at the first mating surface and / or the second mating surface.
[0006] According to the energy storage box of this utility model embodiment, the surface of the battery box facing the switch door is the first surface. The angle between the first mating surface of the first door and the second mating surface of the second box and the first surface is an acute angle. The inclined first and second mating surfaces can prevent water droplets on the outer surface of the battery box from entering the receiving cavity along the gap. The first sealing gasket is installed at the first mating surface and / or the second mating surface. The pressure when the first door and the second door are closed will make the first sealing gasket fit more tightly with the first and second mating surfaces, which can further seal the gap between the first and second mating surfaces, making it difficult for water droplets to enter the receiving cavity through the gap between the first and second mating surfaces.
[0007] According to some embodiments of the present invention, the included angles between the first mating surface and the second mating surface and the first surface are both A, satisfying: 30°≤A≤60°.
[0008] According to some embodiments of the present invention, the first sealing gasket is a rectangular body, the first sealing gasket is installed at the first mating surface, the angle between the side of the first mating surface facing the second mating surface and the first surface is an acute angle, the surface of the first sealing gasket facing the second door is the second surface, and the second surface is arranged parallel to the first mating surface.
[0009] According to some embodiments of the present invention, the thickness of the first sealing gasket along the first direction is D, which satisfies: 5mm≤D≤8mm.
[0010] According to some embodiments of the present invention, the energy storage box further includes a second sealing gasket, which is located between the battery box and the switch door.
[0011] According to some embodiments of this utility model, the energy storage box further includes: a liquid-cooled box, which is connected to one side of the battery box in a first direction, the liquid-cooled box having a liquid-cooling device connected to the battery cluster, and the side wall of the battery box near the liquid-cooled box being a first side wall; a first adapter, which passes through the first side wall, the first adapter including an adapter pipe and a first fixing plate, the adapter pipe passing through the first fixing plate, the first fixing plate being located inside the liquid-cooled box and fixedly connected to the first side wall; and a third sealing gasket, which is located between the first fixing plate and the first side wall.
[0012] According to some embodiments of the present invention, the first adapter is an integrally molded part.
[0013] According to some embodiments of this utility model, the energy storage box further includes: an electrical control box, which is located on the other side of the battery box in a first direction, and has an electrical control device inside the electrical control box. The electrical control device is electrically connected to the battery cluster, and the side wall of the battery box near the electrical control box is a second side wall; a second adapter, which passes through the second side wall, and includes an adapter plug and a second fixing plate. The adapter plug passes through the second fixing plate, and the second fixing plate is located inside the electrical control box and fixedly connected to the second side wall; and a fourth sealing gasket, which is located between the second fixing plate and the second side wall.
[0014] According to some embodiments of the present invention, the second adapter is an integrally molded part.
[0015] The energy storage device according to a second aspect of the present invention includes: the energy storage box of the first aspect of the present invention described above.
[0016] According to the energy storage device of the present utility model embodiment, by setting the above-mentioned energy storage box, the first sealing gasket is installed at the first mating surface and / or the second mating surface. The pressure when the first box door and the second box door are closed will make the first sealing gasket fit more tightly with the first mating surface and the second mating surface, which can further seal the gap between the first mating surface and the second mating surface, making it difficult for water droplets to enter the receiving cavity through the gap between the first mating surface and the second mating surface.
[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0019] Figure 1 This is a partial schematic diagram of an energy storage box according to some embodiments of the present utility model;
[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;
[0021] Figure 3 yes Figure 2 A schematic diagram of the first adapter component being assembled onto the first sidewall;
[0022] Figure 4 yes Figure 1 Enlarged view of point B in the middle;
[0023] Figure 5 yes Figure 4 A schematic diagram of the second adapter component being assembled to the second side wall;
[0024] Figure 6 yes Figure 1 A schematic diagram of the central switch door being assembled into the energy storage tank;
[0025] Figure 7 yes Figure 1 A schematic diagram of the central opening and closing door;
[0026] Figure 8 yes Figure 7 Enlarged view of point C in the middle;
[0027] Figure 9 yes Figure 8 A diagram showing the first compartment door open.
[0028] Figure 10 This is a schematic diagram of another part of the energy storage box according to some embodiments of the present utility model;
[0029] Figure 11 yes Figure 1 A schematic diagram of the second sealing gasket;
[0030] Figure 12 yes Figure 1 A schematic diagram of the second sealing gasket being assembled into the energy storage tank.
[0031] Figure label:
[0032] 100. Energy storage box;
[0033] 11. Battery housing; 111. Receiving cavity; 112. First side wall; 1121. First through hole; 1122. Third connecting hole; 113. Second side wall; 1131. Third through hole; 1132. Sixth connecting hole; 114. First surface; 12. Electrical control housing;
[0034] 20. Opening and closing door; 21. First box door; 22. Second box door; 221. Second mating surface;
[0035] 31. First sealing gasket; 32. Second sealing gasket; 33. Third sealing gasket; 331. Second through hole; 332. Second connecting hole;
[0036] 40. First adapter; 41. Adapter piping; 42. First fixing plate; 421. First connecting hole;
[0037] 50. Second adapter; 51. Adapter plug; 52. Second fixing plate; 521. Fourth connecting hole. Detailed Implementation
[0038] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0040] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0041] The following is for reference. Figures 1-12 Description of an energy storage box 100 according to an embodiment of the present utility model.
[0042] According to the first aspect of the present invention, the energy storage box 100 includes a battery box 11 and a switch door 20. The battery box 11 has a receiving cavity 111, in which a battery cluster is disposed. The receiving cavity 111 has an opening facing one side. The switch door 20 is installed at the opening of the receiving cavity 111. When the switch door 20 is opened, the battery cluster can be placed in the receiving cavity 111. After placement, the switch door 20 can be closed.
[0043] The switch door 20 includes a first door 21 and a second door 22 that are connected to each other. The first door 21 has a first mating surface facing the second door 22, and the second door 22 has a second mating surface 221 facing the first door 21. The surface of the battery box 11 facing the switch door 20 is a first surface 114. The first mating surface and the second mating surface 221 are parallel to each other, and the included angles between the first mating surface and the second mating surface 221 and the first surface 114 are all acute angles. For example, the included angles between the first mating surface and the second mating surface 221 and the first surface 114 can be 30°, 35°, 45°, 50°, or 60°, etc.
[0044] When the battery box 11 is in a low-temperature environment, water droplets easily form on its outer surface. These droplets inevitably enter the receiving cavity 111 through the gap between the first door 21 and the second door 22, reducing the insulation performance of the high-voltage electrical insulation medium. By setting the first mating surface of the first door 21 and the second mating surface 221 of the battery box 11 as inclined surfaces, compared to a system where the first and second mating surfaces 221 are perpendicular to the first surface 114, the path for water droplets on the outer surface of the battery box 11 to enter the receiving cavity 111 through the gap between the first and second mating surfaces 221 is longer. Furthermore, when water droplets enter the gap, the inclined first and second mating surfaces 221 can prevent them from continuing to enter the receiving cavity 111 along the gap, thus making it less likely for water droplets to enter the receiving cavity 111 through the gap between the first and second mating surfaces 221.
[0045] The energy storage housing 100 also includes a first sealing gasket 31, which is installed at the first mating surface, or at the second mating surface 221, or can be installed at both the first mating surface and the second mating surface 221. For example, the first sealing gasket 31 can be adhered to the first mating surface and / or the second mating surface 221.
[0046] Since the angle between the first mating surface and the second mating surface 221 and the first surface 114 is an acute angle, and a first sealing gasket 31 is provided at the first mating surface and / or the second mating surface 221, and the first mating surface of the first door 21 and the second mating surface 221 of the second box body are set as inclined surfaces, when the first door 21 and the second door 22 are closed, the pressure when the first door 21 and the second door 22 are closed will have a decomposition process, so that the first sealing gasket 31 and the first mating surface or the second mating surface 221 fit more tightly, which can further seal the gap between the first mating surface and the second mating surface 221, so that water droplets on the outer surface of the battery box 11 are not easy to enter the receiving cavity 111 through the gap between the first mating surface and the second mating surface 221.
[0047] According to the energy storage box 100 of this utility model embodiment, the surface of the battery box 11 facing the switch door 20 is the first surface 114. The included angles between the first mating surface of the first door 21 and the second mating surface 221 of the second box and the first surface 114 are both acute angles. The inclined first mating surface and the second mating surface 221 can prevent water droplets on the outer surface of the battery box 11 from entering the receiving cavity 111 along the gap. The first sealing gasket 31 is installed at the first mating surface and / or the second mating surface 221. The pressure when the first door 21 and the second door 22 are closed will make the first sealing gasket 31 fit more tightly with the first mating surface and the second mating surface 221, which can further seal the gap between the first mating surface and the second mating surface 221, making it difficult for water droplets to enter the receiving cavity 111 through the gap between the first mating surface and the second mating surface 221, thus improving the safety of the battery cluster.
[0048] According to some embodiments of this utility model, refer to Figures 6-9 The included angles between the first mating surface and the second mating surface 221 and the first surface 114 are both A, satisfying 30°≤A≤60°. This satisfies both the convenience of opening the first door 21 and the second door 22 and increases the contact area between the first sealing gasket 31 and the first door 21 and the second door 22. For example, the included angles between the first mating surface and the second mating surface 221 and the first surface 114 can be 30°, 35°, 45°, 50°, or 60°, etc.
[0049] If the angle between the first mating surface and the second mating surface 221 and the first surface 114 is less than 30°, the first mating surface and the second mating surface 221 will be set too steeply, which is not conducive to the setting of the first mating surface and the second mating surface 221; if the angle between the first mating surface and the second mating surface 221 and the first surface 114 is greater than 60°, the first mating surface and the second mating surface 221 will be set too gently, which is not conducive to the first door 21 and the second door 22 blocking water droplets.
[0050] According to some embodiments of this utility model, refer to Figures 6-9 The first sealing gasket 31 is rectangular and is installed on the first mating surface. The angle between the side of the first mating surface facing the second mating surface 221 and the first surface 114 is an acute angle. The surface of the first sealing gasket 31 facing the second door 22 is the second surface. The second surface is parallel to the first mating surface, that is, part of the first sealing gasket 31 protrudes from the side of the first door 21 facing the battery box 11.
[0051] After the switch door 20 is closed, part of the first sealing gasket 31 is located inside the battery box 11, and part of the first sealing gasket 31 abuts against the frame of the battery box 11, so that part of the first sealing gasket 31 is compressed, thereby further sealing the gap between the first mating surface and the second mating surface 221 and the frame of the battery box 11.
[0052] According to some embodiments of this utility model, refer to Figure 1 , Figures 6-9 The first sealing gasket 31 is along the first direction (see attached diagram). Figure 1 The thickness of the first sealing gasket 31 in the Y direction (the first direction can be the left and right direction) is D, which satisfies: 5mm≤D≤8mm, so that the first sealing gasket 31 has a certain thickness between the first mating surface and the second mating surface 221. When the first box door 21 and the second box door 22 are closed, the first sealing gasket 31 can be compressed to a certain extent, so that the first sealing gasket 31 can better seal between the first box door 21 and the second box door 22.
[0053] For example, the thickness of the first sealing gasket 31 can be 5mm, 6mm, 7mm or 8mm, etc.
[0054] According to some embodiments of this utility model, refer to Figure 1 , Figures 6-7 , Figures 10-12 The energy storage housing 100 also includes a second sealing gasket 32, which is located between the battery housing 11 and the switch door 20. The second sealing gasket 32 is used to seal the gap between the switch door 20 and the battery housing 11. When the switch door 20 is closed, the switch door 20 can be used to press the second sealing gasket 32. For example, the second sealing gasket 32 can be attached to the side of the battery housing 11 facing the switch door 20.
[0055] According to some embodiments of this utility model, refer to Figures 1-3 The energy storage box 100 also includes: a liquid-cooled box, a first adapter 40 and a third sealing gasket 33. The liquid-cooled box is connected to one side of the battery box 11 in a first direction. The liquid-cooled box contains a liquid-cooling device, which is connected to the battery cluster. The side wall of the battery box 11 near the liquid-cooled box is the first side wall 112. The liquid-cooling device can provide coolant to the battery cluster.
[0056] A first adapter 40 is inserted through the first side wall 112. The first adapter 40 includes an adapter pipe 41 and a first fixing plate 42. The adapter pipe 41 can be used to connect liquid cooling pipes located in the liquid cooling box and the battery box 11, respectively. The adapter pipe 41 is inserted through the first fixing plate 42, and the first fixing plate 42 is fixedly connected to the first side wall 112 to fix the first adapter 40 to the first side wall 112. The first fixing plate 42 is located inside the liquid cooling box, and a third sealing gasket 33 is located between the first fixing plate 42 and the first side wall 112. The third sealing gasket 33 is used to seal the gap between the first fixing plate 42 and the first side wall 112 to prevent water vapor inside the liquid cooling box from entering the battery box 11.
[0057] For example, the first sidewall 112 has a first through hole 1121, the third sealing gasket 33 has a second through hole 331 opposite to the first through hole 1121, and the transfer pipe 41 can be inserted into the second through hole 331 and the first through hole 1121.
[0058] For example, the first fixing plate 42 is provided with a plurality of first connecting holes 421, the third sealing gasket 33 is provided with a second connecting hole 332 opposite to the plurality of first connecting holes 421, and the first side wall 112 is provided with a third connecting hole 1122 opposite to the plurality of second connecting holes 332. Fasteners can be inserted through the first connecting holes 421, the second connecting holes 332 and the third connecting holes 1122 to fix the first adapter 40 to the first side wall 112 and fix the third sealing gasket 33 between the first fixing plate 42 and the first side wall 112.
[0059] According to some embodiments of this utility model, refer to Figures 1-3 The first adapter 40 is a one-piece molded part, so there is no splicing point between the adapter pipe 41 and the first fixing plate 42. This can further reduce the gap through which water and air can pass through the first adapter 40, and also increase the structural strength of the first adapter 40.
[0060] According to some embodiments of this utility model, refer to Figure 1 , Figures 4-5 The energy storage box 100 also includes: an electrical control box 12, a second adapter 50 and a fourth sealing gasket. The electrical control box 12 is located on the other side of the battery box 11 in the first direction. The electrical control box 12 contains an electrical control device, which is electrically connected to the battery cluster. The side wall of the battery box 11 near the electrical control box 12 is a second side wall 113. The electrical control device can be used to control the operation of the battery cluster.
[0061] The second adapter 50 is disposed through the second side wall 113. The second adapter 50 includes an adapter plug 51 and a second fixing plate 52. The adapter plug 51 is disposed through the second fixing plate 52. The second fixing plate 52 is located inside the electrical control box 12 and is fixedly connected to the second side wall 113 for fixing the second adapter 50 to the second side wall 113. A fourth sealing gasket is located between the second fixing plate 52 and the second side wall 113. The fourth sealing gasket is used to seal the gap between the second fixing plate 52 and the second side wall 113 to prevent moisture inside the electrical control box 12 from entering the battery box 11.
[0062] For example, the second sidewall 113 has a third through hole 1131, the fourth sealing gasket has a fourth through hole opposite to the third through hole 1131, and the adapter plug 51 can be inserted into the fourth through hole and the third through hole 1131.
[0063] For example, the second fixing plate 52 is provided with a plurality of fourth connecting holes 521, the fourth sealing gasket is provided with a fifth connecting hole opposite to the plurality of fourth connecting holes 521, and the second side wall 113 is provided with a sixth connecting hole 1132 opposite to the plurality of fifth connecting holes. Fasteners can be inserted through the fourth connecting holes 521, the fifth connecting holes and the sixth connecting holes 1132 to fix the second adapter 50 to the second side wall 113 and fix the fourth sealing gasket between the second fixing plate 52 and the second side wall 113.
[0064] According to some embodiments of this utility model, refer to Figure 1 , Figures 4-5 The second adapter 50 is a one-piece molded part, so that there is no splicing point between the adapter plug 51 and the second fixing plate 52. This can further reduce the gap through which water vapor can pass through the second adapter 50, and also increase the structural strength of the second adapter 50.
[0065] The energy storage device according to a second aspect of the present invention includes: the energy storage box 100 of the first aspect of the present invention described above.
[0066] According to the energy storage device of this utility model embodiment, by setting the above-mentioned energy storage box 100, the first sealing gasket 31 is installed at the first mating surface and / or the second mating surface 221. The pressure when the first box door 21 and the second box door 22 are closed will make the first sealing gasket 31 fit more tightly with the first mating surface and the second mating surface 221, which can further seal the gap between the first mating surface and the second mating surface 221, making it difficult for water droplets to enter the receiving cavity 111 through the gap between the first mating surface and the second mating surface 221, thereby improving the safety of the battery cluster.
[0067] In the description of this specification, references to terms such as "some embodiments," "optionally," "furthermore," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0068] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. An energy storage box, characterized in that, include: A battery housing having a receiving cavity that opens to one side, wherein a battery cluster is disposed within the receiving cavity; A switch door is installed at the opening of the battery box. The switch door includes a first door and a second door that are connected to each other. The first door has a first mating surface facing the second door, and the second door has a second mating surface facing the first door. The surface of the battery box facing the switch door is a first surface. The first mating surface and the second mating surface are parallel to each other and the included angle between them is an acute angle. A first sealing gasket is installed at the first mating surface and / or the second mating surface.
2. The energy storage box according to claim 1, characterized in that, The included angles between the first mating surface and the second mating surface and the first surface are both A, satisfying: 30°≤A≤60°.
3. The energy storage box according to claim 1, characterized in that, The first sealing gasket is rectangular and is installed on the first mating surface. The angle between the side of the first mating surface facing the second mating surface and the first surface is an acute angle. The surface of the first sealing gasket facing the second door is the second surface, which is parallel to the first mating surface.
4. The energy storage box according to claim 3, characterized in that, The thickness of the first sealing gasket along the first direction is D, which satisfies: 5mm≤D≤8mm.
5. The energy storage box according to claim 1, characterized in that, Also includes: The second sealing gasket is located between the battery box and the switch door.
6. The energy storage box according to claim 1, characterized in that, Also includes: A liquid-cooled housing is connected to one side of the battery housing in a first direction. The liquid-cooled housing contains a liquid-cooling device, which is connected to the battery cluster. The side wall of the battery housing near the liquid-cooled housing is the first side wall. A first adapter is provided through the first side wall. The first adapter includes an adapter pipe and a first fixing plate. The adapter pipe is provided through the first fixing plate. The first fixing plate is located inside the liquid cooling box and is fixedly connected to the first side wall. The third sealing gasket is located between the first fixing plate and the first side wall.
7. The energy storage box according to claim 6, characterized in that, The first adapter is a one-piece molded part.
8. The energy storage box according to claim 1, characterized in that, Also includes: An electrical control box is located on the other side of the battery box in a first direction. The electrical control box contains an electrical control device that is electrically connected to the battery cluster. The side wall of the battery box near the electrical control box is a second side wall. The second adapter is disposed through the second side wall. The second adapter includes an adapter plug and a second fixing plate. The adapter plug is disposed through the second fixing plate. The second fixing plate is located inside the electrical control box and is fixedly connected to the second side wall. A fourth sealing gasket is located between the second fixing plate and the second side wall.
9. The energy storage box according to claim 8, characterized in that, The second adapter is a one-piece molded part.
10. An energy storage device, characterized in that, include: The energy storage box according to any one of claims 1-9.