Battery module and energy storage device

Abstract

The utility model provides a battery module and an energy storage device. The battery module comprises a first battery pack and a second battery pack, a second battery pack; the connecting row is provided with a first end and a second end which are oppositely arranged, the first end is used for being electrically connected with the output end of the first battery pack, the second end is located on the outer side of the first battery pack, a connecting port is formed in the side wall, corresponding to the second end, of the second battery pack, and the second end is used for being electrically connected with the input end of the second battery pack; wherein the second battery pack is provided with a disconnection position and a connection position which are arranged with the first battery pack, and when the second battery pack moves towards the direction close to the first battery pack, the second battery pack moves from the disconnection position to the connection position, and the second end enters the second battery pack through the connection port and is electrically connected with the input end of the second battery pack. By applying the technical scheme of the utility model, the technical problem that the electrical connection requirement of two adjacent battery packs cannot be met in the related technology can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and in particular to a battery module and an energy storage device. Background Art

[0002] In ship container projects, the high-voltage connectors of marine battery packs are all on one side of the battery pack. If two adjacent battery packs need to be electrically connected, the cable needs to wrap around the battery pack once before it can be connected to the adjacent battery pack. This makes the cable too long and takes up too much space. At the same time, the distance between the two adjacent battery packs is too short, and conventional connector harnesses cannot be installed, so it cannot meet the electrical connection requirements between the two adjacent battery packs. Utility Model Content

[0003] The embodiments of the present invention provide a battery module and an energy storage device, which can improve the technical problem in the related art that the electrical connection requirement between two adjacent battery packs cannot be met.

[0004] In a first aspect, an embodiment of the present invention provides a battery module, which includes: a first battery pack; a second battery pack; a connecting row, having a first end and a second end relatively arranged, the first end being used to electrically connect to the output end of the first battery pack, and the second end being located on the outside of the first battery pack, and a connecting port being provided on the side wall of the second battery pack corresponding to the second end, and the second end being used to electrically connect to the input end of the second battery pack; wherein the second battery pack is movable relative to the first battery pack, and the second battery pack has a disconnect position and a connection position set with the first battery pack, and when the second battery pack moves in a direction close to the first battery pack, the second battery pack moves from the disconnect position to the connection position, and the second end enters the second battery pack through the connection port and is electrically connected to the input end of the second battery pack.

[0005] In one embodiment, the connecting bar includes: a first connecting member, one end of which is disposed within the first battery pack and electrically connected to the output terminal of the first battery pack, and the other end of the first connecting member is located outside the first battery pack; a second connecting member, which is disposed within the second battery pack, one end of which is electrically connected to the input terminal of the second battery pack, and the other end of the second connecting member is disposed near the connecting port; wherein, when the second battery pack moves from the disconnected position to the connected position, the other end of the first connecting member enters the second battery pack through the connecting port and contacts the other end of the second connecting member, thereby electrically connecting the first battery pack to the second battery pack.

[0006] In one embodiment, the battery module further includes a fixing member, which is disposed in the second battery pack and located at the connection port. The fixing member is used to fix the other end of the second connector. When the other end of the first connector enters the second battery pack through the connection port, the fixing member can simultaneously fix the other end of the first connector and the other end of the second connector.

[0007] In one embodiment, the fixing member includes: a frame having an accommodating cavity; an elastic member arranged in the accommodating cavity, one end of the elastic member being connected to the inner wall of the accommodating cavity; a pressure plate arranged in the accommodating cavity, the other end of the elastic member being connected to one side of the pressure plate, the other side of the pressure plate being used to connect with the first connecting member and the second connecting member, and the elastic member being used to apply a pressing force on the pressure plate toward the second connecting member.

[0008] In one embodiment, the pressure plate has an inclined section on one side close to the connection port, the thickness of the inclined section gradually increases from the first connection member toward the second connection member, and the inclined surface of the inclined section is arranged toward the side away from the elastic member.

[0009] In one embodiment, the battery module further includes a sealing member, and the sealing member is provided at the connection point and / or the connection port between the first connecting member and the first battery pack side wall, and the first connecting member and the sealing member are connected through each other.

[0010] In one embodiment, the sealing member includes: a cover having a first opening; a shell having a second opening corresponding to the first opening, the shell being connected to the side walls of the first battery pack and / or the second battery pack, the cover being covered on the shell, and the first connecting member being connected to the sealing member through the first opening and the second opening.

[0011] In one embodiment, an extension length of the first connecting member and / or the second connecting member is L, and 200 mm ≤ L ≤ 250 mm.

[0012] In one embodiment, the elastic member includes a spring.

[0013] In one embodiment, the first connecting member and / or the second connecting member comprises a copper busbar.

[0014] In a second aspect, an embodiment of the present invention provides an energy storage device, which includes: the above-mentioned battery module.

[0015] By applying the technical solution of the present invention, a connecting row is provided between adjacent first and second battery packs, and a connecting port is provided on the side wall of the second end of the connecting row corresponding to the second battery pack. When the second battery pack moves toward the direction close to the first battery pack, the second battery pack moves from the disconnected position to the connected position, and the second end enters the second battery pack through the connecting port and is electrically connected to the input end of the second battery pack. This can improve the efficiency of connecting the first and second battery packs without occupying too much installation space, thereby meeting the electrical connection requirements between the two adjacent battery packs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a three-dimensional schematic diagram of the energy storage device provided by an embodiment of the present utility model;

[0018] Figure 2 is a three-dimensional schematic diagram of the energy storage device provided by an embodiment of the present utility model from another perspective;

[0019] Figure 3 is a schematic top view of an energy storage device provided in an embodiment of the present utility model;

[0020] Figure 4 yes Figure 3 Schematic diagram of the cross section at AA in the middle;

[0021] Figure 5 yes Figure 4 A magnified schematic diagram of point B in the middle;

[0022] Figure 6 This is a three-dimensional schematic diagram of a sealing member provided in an embodiment of the present utility model;

[0023] Figure 7 It is a three-dimensional schematic diagram of a fixing member provided in an embodiment of the present utility model.

[0024] The above drawings include the following reference numerals:

[0025] 10. Connecting bar; 11. First connecting member; 12. Second connecting member;

[0026] 20. First battery pack;

[0027] 30. Second battery pack; 31. Connection port;

[0028] 40. Fixing member; 41. Frame; 42. Elastic member; 43. Pressing plate; 431. Inclined section;

[0029] 50. Sealing member; 51. Cover; 511. First opening; 52. Housing; 521. Second opening. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0031] like Figures 1 to 7 As shown, in the first aspect, an embodiment of the present invention provides a battery module, which includes: a first battery pack 20; a second battery pack 30; a connecting row 10, having a first end and a second end arranged opposite to each other, the first end being used to electrically connect to the output end of the first battery pack 20, and the second end being located on the outside of the first battery pack 20, and a connecting port 31 being provided on the side wall of the second battery pack 30 corresponding to the second end, and the second end being used to electrically connect to the input end of the second battery pack 30; wherein the second battery pack 30 is movable relative to the first battery pack 20, and the second battery pack 30 has a disconnect position and a connection position set with the first battery pack 20, and when the second battery pack 30 moves in a direction close to the first battery pack 20, the second battery pack 30 moves from the disconnect position to the connection position, and the second end enters the second battery pack 30 through the connecting port 31 and is electrically connected to the input end of the second battery pack 30.

[0032] By applying the technical solution of the present invention, a connecting row 10 is provided between the adjacent first battery pack 20 and second battery pack 30, and a connecting port 31 is provided on the side wall of the second battery pack 30 corresponding to the second end of the connecting row 10. When the second battery pack 30 moves toward the direction close to the first battery pack 20, the second battery pack 30 moves from the disconnected position to the connected position, and the second end enters the second battery pack 30 through the connecting port 31 and is electrically connected to the input end of the second battery pack 30. This can improve the efficiency of connecting the first battery pack 20 and the second battery pack 30, and at the same time does not require too much installation space, thereby meeting the electrical connection requirements between the two adjacent battery packs.

[0033] In one embodiment, the connector bar 10 includes: a first connector 11, one end of which is disposed within the first battery pack 20 and electrically connected to the output terminal of the first battery pack 20, and the other end of the first connector 11 is located outside the first battery pack 20; a second connector 12, which is disposed within the second battery pack 30, one end of the second connector 12 is electrically connected to the input terminal of the second battery pack 30, and the other end of the second connector 12 is disposed near a connection port 31. When the second battery pack 30 moves from a disconnected position to a connected position, the other end of the first connector 11 enters the second battery pack 30 through the connection port 31 and contacts the other end of the second connector 12, thereby electrically connecting the first battery pack 20 to the second battery pack 30. The connecting row 10 is set to be a segmented first connecting member 11 and a second connecting member 12. Before the first battery pack 20 and the second battery pack 30 are electrically connected, one end of the first connecting member 11 is first welded to the output end of the first battery pack 20, and one end of the second connecting member 12 is welded to the input end of the second battery pack 30. In this way, it is only necessary to move the second battery pack 30 to allow the other end of the first connecting member 11 to enter the second battery pack 30 and contact and connect with the other end of the second connecting member 12. The above structure is simple, which not only facilitates the installation and disassembly between components, but also facilitates the replacement of the first connecting member 11 and the second connecting member 12, so as to improve the replacement efficiency of the first connecting member 11 and the second connecting member 12.

[0034] In one embodiment, the battery module further includes a fixing member 40, which is disposed within the second battery pack 30 and located at the connection port 31. The fixing member 40 is used to secure the other end of the second connector 12. When the other end of the first connector 11 enters the second battery pack 30 through the connection port 31, the fixing member 40 can simultaneously secure the other end of the first connector 11 and the other end of the second connector 12. This structure improves the connection strength between the first connector 11 and the second connector 12 during contact, thereby maintaining the electrical connection stability between the first battery pack 20 and the second battery pack 30 and facilitating user experience.

[0035] In one embodiment, the fixing member 40 includes a frame 41 having a receiving cavity; an elastic member 42 disposed within the receiving cavity, one end of the elastic member 42 being connected to the inner wall of the receiving cavity; and a pressure plate 43 disposed within the receiving cavity, the other end of the elastic member 42 being connected to one side of the pressure plate 43. The other side of the pressure plate 43 is configured to connect to the first connecting member 11 and the second connecting member 12. The elastic member 42 is configured to apply a compressive force to the pressure plate 43 toward the second connecting member 12. The above structure is simple and easy to manufacture, not only meeting the requirements for compressing the first connecting member 11 and the second connecting member 12, but also reducing the cost of the assembly.

[0036] In one embodiment, the pressure plate 43 has an inclined section 431 on the side near the connection port 31. The thickness of the inclined section 431 gradually increases from the first connector 11 toward the second connector 12, and the slope of the inclined section 431 faces away from the elastic member 42. This arrangement allows the pressure plate 43 to be pushed open when the other end of the first connector 11 enters the second battery pack 30, allowing the first connector 11 to contact the second connector 12, thereby improving the efficiency of the first connector 11 entering the second battery pack 30.

[0037] In one embodiment, the battery module further includes a seal 50, which is provided at the connection between the first connector 11 and the side wall of the first battery pack 20 and / or at the connection port 31. The first connector 11 and the seal 50 are interpenetratingly connected. In the present application, the seal 50 is provided at the connection between the first connector 11 and the side wall of the first battery pack 20 and at the connection port 31. By providing such a structure, the first connector 11 and the second connector 12 can be protected to ensure the safe operation of the first battery pack 20 and the second battery pack 30.

[0038] In one embodiment, the sealing member 50 includes a cover 51 having a first opening 511 and a housing 52 having a second opening 521 corresponding to the first opening 511. The housing 52 is connected to the sidewalls of the first battery pack 20 and / or the second battery pack 30. The cover 51 is disposed on the housing 52. The first connector 11 is connected to the sealing member 50 through the first opening 511 and the second opening 521. This configuration further enhances the sealing effect of the sealing member 50, thereby maximizing the safety of the first battery pack 20 and the second battery pack 30.

[0039] In one embodiment, the extended length L of the first connector 11 and / or the second connector 12 is 200 mm ≤ L ≤ 250 mm. This configuration ensures that the length of the first connector 11 and / or the second connector 12 is neither too long nor too short, thereby meeting the requirements of the device. In this application, L can be set to a value such as 200 mm, 230 mm, or 250 mm.

[0040] In one embodiment, the elastic member 42 includes a spring.

[0041] In one embodiment, the first connecting member 11 and / or the second connecting member 12 include copper busbars.

[0042] In a second aspect, an embodiment of the present invention provides an energy storage device, which includes: the above-mentioned battery module.

[0043] By applying the technical solution of the present invention, a connecting row 10 is provided between the adjacent first battery pack 20 and second battery pack 30, and a connecting port 31 is provided on the side wall of the second battery pack 30 corresponding to the second end of the connecting row 10. When the second battery pack 30 moves toward the direction close to the first battery pack 20, the second battery pack 30 moves from the disconnected position to the connected position, and the second end enters the second battery pack 30 through the connecting port 31 and is electrically connected to the input end of the second battery pack 30. This can improve the efficiency of connecting the first battery pack 20 and the second battery pack 30, and at the same time does not require too much installation space, thereby meeting the electrical connection requirements between the two adjacent battery packs.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0046] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0047] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0048] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A battery module, characterized in that: The battery module includes: First battery pack; Second battery pack; a connecting bar having a first end and a second end disposed opposite each other, the first end being configured to electrically connect to an output terminal of the first battery pack, the second end being located outside the first battery pack, a connecting port being provided on a side wall of the second battery pack corresponding to the second end, the second end being configured to electrically connect to an input terminal of the second battery pack; In which, the second battery pack is capable of moving relative to the first battery pack, and the second battery pack has a disconnected position and a connected position set with the first battery pack. When the second battery pack moves toward the direction close to the first battery pack, the second battery pack moves from the disconnected position to the connected position, and the second end enters the second battery pack through the connecting port and is electrically connected to the input end of the second battery pack.

2. The battery module according to claim 1, wherein: The connecting bar comprises: a first connector, one end of the first connector being disposed within the first battery pack and electrically connected to an output terminal of the first battery pack, and the other end of the first connector being located outside the first battery pack; a second connector disposed in the second battery pack, one end of the second connector being electrically connected to the input terminal of the second battery pack, and the other end of the second connector being disposed adjacent to the connection port; When the second battery pack moves from the disconnected position to the connected position, the other end of the first connector enters the second battery pack through the connecting port and contacts the other end of the second connector, so that the first battery pack is electrically connected to the second battery pack.

3. The battery module according to claim 2, characterized in that: The battery module also includes a fixing part, which is arranged in the second battery pack and located at the connecting port. The fixing part is used to fix the other end of the second connecting member. When the other end of the first connecting member enters the second battery pack through the connecting port, the fixing part can fix the other end of the first connecting member and the other end of the second connecting member at the same time.

4. The battery module according to claim 3, characterized in that: The fixing member includes: A frame having a receiving cavity; an elastic member disposed in the accommodating cavity, wherein one end of the elastic member is connected to the inner wall of the accommodating cavity; A pressure plate is arranged in the accommodating cavity, the other end of the elastic member is connected to one side of the pressure plate, the other side of the pressure plate is used to connect with the first connecting member and the second connecting member, and the elastic member is used to apply a pressing force to the pressure plate toward the second connecting member.

5. The battery module according to claim 4, characterized in that: The pressure plate has an inclined section on one side close to the connection port, the thickness of the inclined section gradually increases from the first connecting member toward the second connecting member, and the inclined surface of the inclined section is arranged toward the side away from the elastic member.

6. The battery module according to any one of claims 2 to 5, characterized in that: The battery module further includes a sealing member, which is provided at the connection between the first connecting member and the first battery pack side wall and / or the connecting port, and the first connecting member is connected to the sealing member through a penetration connection.

7. The battery module according to claim 6, characterized in that: The sealing member comprises: A cover having a first opening; The shell has a second opening corresponding to the first opening, the shell is connected to the side wall of the first battery pack and / or the second battery pack, the cover is covered on the shell, and the first connecting member is connected to the sealing member through the first opening and the second opening.

8. The battery module according to any one of claims 2 to 5, characterized in that: An extension length of the first connecting member and / or the second connecting member is L, 200 mm ≤ L ≤ 250 mm.

9. The battery module according to claim 4, characterized in that: The elastic member includes a spring.

10. The battery module according to any one of claims 2 to 5, characterized in that: The first connecting member and / or the second connecting member include a copper busbar.

11. An energy storage device, characterized in that: The energy storage device comprises: The battery module according to any one of claims 1 to 10.

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