Battery device, energy storage equipment, energy storage system and charging network

Abstract

The embodiment of the utility model provides a battery device, energy storage equipment, an energy storage system and a charging network, and relates to the technical field of batteries. The battery device comprises a battery box body, a battery monomer, a first mounting piece and a functional device; the battery box body is provided with an accommodating cavity and comprises a first wall; the battery monomers are mounted in the accommodating cavities; the first installation part is detachably installed on the first wall and located on the side, away from the containing cavity, of the first wall. The functional device is detachably connected to the first installation part and located on the side, facing the first wall, of the first installation part. When maintenance such as maintenance and replacement of the functional device needs to be carried out, the first mounting piece and the functional device can be sequentially dismounted, and the maintenance operation of the functional device is facilitated.

Description

Technical Field

[0001] This application relates to the field of battery technology, and more specifically, to a battery device, energy storage device, energy storage system, and charging network. Background Technology

[0002] The battery device includes a battery housing and individual battery cells installed inside the battery housing. To improve the functionality of the battery device, it may also include functional devices such as sensors.

[0003] However, some functional components have a limited lifespan and require regular maintenance such as repair or replacement. Therefore, how to facilitate the maintenance of functional components is a research direction in battery technology. Utility Model Content

[0004] This application provides a battery device, energy storage device, energy storage system, and charging network that facilitates the maintenance of functional components.

[0005] In a first aspect, embodiments of this application provide a battery device, including a battery housing, a battery cell, a first mounting member, and a functional device; the battery housing has a receiving cavity and includes a first wall for enclosing a portion of the receiving cavity; the battery cell is installed in the receiving cavity; the first mounting member is detachably mounted to the first wall and is located on the side of the first wall opposite to the receiving cavity; the functional device is detachably connected to the first mounting member and is located on the side of the first mounting member facing the first wall.

[0006] By adopting the above technical solution, the functional components are detachably installed on the first mounting component, and the first mounting component is detachably installed on the first wall. When maintenance such as repair or replacement of the functional components is required, the first mounting component and the functional components can be removed in sequence. Compared with the installation method where the functional components are located inside the battery box, the maintenance of the functional components can be carried out without opening the battery box, which is more convenient and faster.

[0007] In some embodiments of this application, the first mounting component has a support frame on the side facing the first wall, and the functional device is detachably connected to the support frame; the support frame includes a first bottom wall and first side walls connected to both sides of the first bottom wall, the two first side walls are respectively connected to the first mounting component, and the functional device is connected to the first bottom wall.

[0008] The above technical solution includes a support frame on the first mounting component. Compared with the method of directly connecting the first mounting component and the functional device, the indirect connection between the functional device and the first mounting component is achieved by using the support frame, which facilitates the installation of the functional device and provides a certain protective distance between the functional device and the first mounting component. The support frame is designed to include a first bottom wall and first side walls connected to both sides of the first bottom wall. The functional device is installed using the first bottom wall, which has a certain height on the first mounting component to facilitate the assembly of the functional device.

[0009] In some embodiments of this application, the battery device includes a first connector that passes through and connects to the first bottom wall and the functional device, and the functional device and the first bottom wall are detachably connected via the first connector.

[0010] By adopting the above technical solution, the functional device and the first bottom wall are detachably connected by the first connector, which is simple in structure and easy to implement.

[0011] In some embodiments of this application, the first mounting member includes a first surface facing the first wall, the first bottom wall, the first side wall and the first surface forming a clearance groove with openings at both ends along a first direction, the first connector extending into the clearance groove, and the first direction being parallel to the first surface and intersecting the arrangement direction of the functional device to the first bottom wall.

[0012] By adopting the above technical solution, the first bottom wall, the first side wall and the first surface are used to form an avoidance groove, which facilitates the first connector to be screwed into the first internal thread.

[0013] In some embodiments of this application, one of the functional device and the support frame is provided with a first snap-fit ​​portion, and the other is provided with a first mating portion, wherein the functional device and the support frame are snap-fitted and mated through the first snap-fit ​​portion and the first mating portion.

[0014] By adopting the above technical solution, the functional components and the support frame are snapped together, resulting in a simple structure that facilitates the assembly and disassembly of the functional components.

[0015] In some embodiments of this application, the first snap-fit ​​portion includes a first snap fastener, and the mating portion includes a first slot.

[0016] The above technical solution utilizes the first buckle and the first slot to achieve the snap-fit ​​connection between the functional components and the support frame, resulting in a simple structure that is easy to manufacture.

[0017] In some embodiments of this application, the support frame is provided with a first anti-mistake part, and the functional device is provided with a second anti-mistake part, wherein the first anti-mistake part and the second anti-mistake part cooperate to prevent mistakes.

[0018] By adopting the above technical solution, the possibility of incorrect installation of functional components can be reduced by utilizing the combination of the first and second error-proof parts.

[0019] In some embodiments of this application, the first anti-mistake part includes an anti-mistake protrusion, the second anti-mistake part includes a plug protruding from one end of the functional device, the functional device includes a second surface facing the first bottom wall and a third surface facing away from the first bottom wall, along the arrangement direction from the second surface to the third surface, the distance between the plug and the second surface is greater than the distance between the plug and the third surface, and the side of the plug facing the first bottom wall abuts against or is spaced apart from the anti-mistake protrusion.

[0020] By adopting the above technical solution, the first and second anti-mistake parts are respectively used as the anti-mistake protrusion and the plug of the original functional device. The structure is simple and the production cost is reduced.

[0021] In some embodiments of this application, the first mounting member has a first surface facing the first wall, and the functional device is spaced apart from the first surface.

[0022] By adopting the above technical solution, the functional device is separated from the first surface, and this separation can facilitate heat dissipation of the functional device.

[0023] In some embodiments of this application, the battery device further includes a second mounting member located within the receiving cavity and mounted on the first wall. The battery device includes a second connector that passes through and connects to the first mounting member, the first wall, and the second mounting member, so that the first mounting member is detachably mounted on the first wall.

[0024] Compared to directly and detachably installing the first mounting component onto the first wall, the above technical solution involves adding a second mounting component inside the battery box and using a second connector to pass through the first mounting component, the first wall, and the second mounting component in sequence to achieve installation. This multi-layer connection design can suppress the risk of loosening and significantly improve the stability of the structure and the uniformity of load distribution.

[0025] In some embodiments of this application, the battery device further includes a seal installed between the inner wall surface of the first wall and the second mounting member, and the second connector passes through the seal.

[0026] By adopting the above technical solution, the sealing performance of the first wall can be improved after the first mounting component and the second mounting component are installed using a sealing component.

[0027] In some embodiments of this application, the first mounting member is provided with a second snap-fit ​​portion, the first wall is provided with a second mating portion, and the second snap-fit ​​portion snaps into the second mating portion; or, the first wall is provided with a third internal thread, the battery device includes a third connector, the third connector is provided with a third external thread, the third connector passes through the first mounting member and the first wall, and the third external thread is threadedly connected to the third internal thread.

[0028] By adopting the above technical solution, the first mounting component is directly snapped or bolted to the first wall, which is simple in structure and easy to implement.

[0029] In some embodiments of this application, the first wall has a receiving structure for accommodating the functional device, and the first mounting member is attached to the first wall.

[0030] By adopting the above technical solution, a receiving structure is provided on the first wall. The receiving structure can accommodate some or all of the functional devices, which not only improves the installation stability of the functional devices, but also enables the first mounting part to fit against the first wall, thereby improving the installation stability of the first mounting part.

[0031] In some embodiments of this application, the receiving structure is a receiving hole communicating with the receiving cavity, and the functional device is installed in the receiving hole and partially located within the receiving cavity.

[0032] By adopting the above technical solution, the receiving structure is designed to include receiving holes, through which functional devices can be placed in the receiving cavity, facilitating connection with the circuit structure inside the receiving cavity.

[0033] In some embodiments of this application, the functional device is at least one of a detection device and an active protection device for a battery device.

[0034] By adopting the above technical solution, the functional device is a vulnerable detection device or an active protection device, which makes the vulnerable parts easy to disassemble and maintain.

[0035] Secondly, embodiments of this application provide an energy storage device, including a battery device as described in any of the above technical solutions, wherein the battery device is used to store or provide electrical energy.

[0036] Thirdly, embodiments of this application provide an energy storage system, including an energy storage converter and the aforementioned energy storage device, wherein the energy storage converter is used to electrically connect the power generation device and the energy storage device.

[0037] Fourthly, embodiments of this application provide a charging network, including a charging pile and the aforementioned energy storage device or energy storage system, wherein the energy storage device or energy storage system is used to provide electrical energy to the charging pile. Attached Figure Description

[0038] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the charging network structure in some embodiments of this application;

[0040] Figure 2 This is a schematic diagram of the energy storage system in some embodiments of this application;

[0041] Figure 3 This is a schematic diagram of the structure of the energy storage device in some embodiments of this application;

[0042] Figure 4 This is a schematic diagram of the structure of a battery device provided in some embodiments of this application;

[0043] Figure 5 for Figure 4 Exploded view of part of the structure;

[0044] Figure 6 for Figure 5 Enlarged view of part A;

[0045] Figure 7 A schematic diagram of the structure of another battery device provided in some embodiments of this application from a second perspective;

[0046] Figure 8 A schematic diagram of the structure of a first mounting component of another battery device provided in some embodiments of this application;

[0047] Figure 9 A schematic diagram of the structure of a second mounting component for another battery device provided in some embodiments of this application;

[0048] Figure 10 A schematic diagram showing the positional relationship of a first mounting member, a first wall, a seal, and a second mounting member for another battery device provided in some embodiments of this application;

[0049] Figure 11 This is a schematic diagram showing the connection of a first mounting component, a second mounting component, a seal, and functional components of another battery device provided in some embodiments of this application.

[0050] The reference numerals in the accompanying drawings for the specific embodiments are as follows:

[0051] 1000, Charging network; 2000, Energy storage system; 3000, Power generation device;

[0052] 100. Battery device;

[0053] 10. Battery housing;

[0054] 1. First box; 11. First wall; 111. Retaining structure;

[0055] 2. Second housing;

[0056] 3. Receiving cavity;

[0057] 20. Battery cell;

[0058] 30. First mounting component; 31. Support frame; 311. First bottom wall; 3111. First connecting hole; 3112. First internal thread; 3113. First anti-fooling part; 3114. First tubular component; 312. First side wall; 313. Opening; 32. First surface; 33. Clearance groove; 34. Third connecting hole;

[0059] 40. Functional component; 41. Connecting ear; 411. Second connecting hole; 42. Second foolproof part; 43. Second surface; 44. Third surface;

[0060] 50. First connector;

[0061] 60. Second connector;

[0062] 70. Second mounting component; 71. Fourth connecting hole; 72. Second tubular component;

[0063] 80. Sealing element; 81. Sixth connecting hole;

[0064] 200. Energy storage equipment; 210. Energy storage container;

[0065] 300, charging piles;

[0066] 400. Energy storage converter;

[0067] X, the first direction. Detailed Implementation

[0068] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0069] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0070] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0071] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" 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 direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0072] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, H and / or B can represent: H existing alone, H and B existing simultaneously, and B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0073] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0074] In this application, "multiple" means two or more (including two).

[0075] A battery device typically includes a battery housing and individual battery cells located inside the housing. To enhance the functionality of the battery device, it also includes detection devices and active protection devices. Detection devices may include leakage sensors that detect electrolyte leakage, current sensors that detect current, etc. Active protection devices may include trigger fuses.

[0076] However, the lifespan of functional components is usually shorter than that of the battery pack as a whole, and these functional components are often vulnerable to damage. This leads to the need for frequent repairs or replacements of these functional components during use. Furthermore, these functional components are usually installed inside the battery box, making them inconvenient to install and remove.

[0077] Therefore, how to conveniently repair and replace easily damaged functional components is an important issue in the research and development of battery devices and related components.

[0078] In view of this, this application provides a technical solution that solves the above-mentioned technical problems by detachably mounting vulnerable functional components to a first mounting member and detachably mounting the first mounting member to the outside of the battery box.

[0079] Please refer to Figure 1 and Figure 3 , Figure 1 This is a schematic diagram of the structure of a charging network 1000 provided in some embodiments of this application. Figure 3 This is a schematic diagram of the structure of an energy storage device 200 provided in some embodiments of this application. Embodiments of this application provide a charging network 1000, which includes a charging pile 300 for charging electrical equipment. The charging network 1000 may also include an energy storage device 200, which is electrically connected to the charging pile 300 and provides power to the charging pile 300.

[0080] It should be noted that the charging pile 300 and the battery cells in the energy storage device 200 are electrically connected via cables, and the battery cells can supply their stored electrical energy to the charging pile 300. The charging pile 300 has connectors that can be connected to electrical equipment, thereby replenishing the energy of the equipment. The application of the energy storage device 200 in this charging network 1000 can effectively improve the security of the charging network 1000 and also help to improve the flexibility of the charging network 1000 during deployment.

[0081] In a charging network 1000, there can be one charging pile 300, and the energy storage device 200 provides power to the one charging pile 300; there can also be multiple charging piles 300, and the energy storage device 200 provides power to multiple charging piles 300.

[0082] As an example, such as Figure 1 As shown, the charging network 1000 includes an energy storage device 200 and two charging piles 300, with the energy storage device 200 providing power to the two charging piles 300.

[0083] The energy storage device 200 may include a battery device 100, which is electrically connected to the charging pile 300 so that the battery device 100 can provide power to the charging pile 300.

[0084] Please refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the structure of an energy storage system 2000 provided in some embodiments of this application. Embodiments of this application provide an energy storage system 2000. The energy storage system 2000 includes an energy storage converter 400, which can be electrically connected to a power generation device 3000 to convert the electrical power provided by the power generation device 3000. The energy storage system 2000 may also include an energy storage device 200, which is electrically connected to the energy storage converter 400. The energy storage converter 400 converts the electrical energy provided by the power generation device 3000 and stores it in the energy storage device 200.

[0085] An energy storage converter 400 is used to connect between the power generation device 3000 and the energy storage device 200. The power generation device 3000 generates electrical energy and stores it in the energy storage device 200 via the energy storage converter. The application of the energy storage device 200 in the energy storage system 2000 effectively improves the operational safety of the energy storage system 2000. In specific implementations, the power generation device can be a solar panel, hydroelectric power generation equipment, thermal power generation equipment, etc. This application does not limit the specific type of power generation device.

[0086] As an example, such as Figure 2 As shown, the energy storage system 2000 includes an energy storage device 200 and an energy storage converter 400. The two power generation devices 3000 respectively transmit the generated electrical energy to the energy storage converter 400, and the energy storage converter 400 introduces the electrical energy into the energy storage device 200 for storage.

[0087] Please refer to Figure 3 The energy storage device 200 includes an energy storage box 210, and a battery device 100 is installed inside the energy storage box 210.

[0088] As an example, the energy storage device 200 can be an energy storage container, an energy storage cabinet, etc.

[0089] As an example, energy storage device 200 can be used in energy storage power stations, wind power generation systems, solar power generation systems, mobile power systems, or temporary power supply systems. Energy storage power stations can store electrical energy during off-peak hours and provide power to relevant users or equipment during peak hours. Wind power generation systems collect wind energy from wind turbines, convert it into electricity, and store it in energy storage device 200. Solar power generation systems can convert solar energy into electricity, store it in energy storage device 200, and supply it to users as needed. Mobile power systems can supply power to relevant equipment in areas where the mains power grid cannot reach, such as remote mountainous areas and isolated wilderness areas. Temporary power supply systems can provide power to users when there is insufficient electricity supply.

[0090] Combined with appendix Figure 4-7 As shown, this application embodiment provides a battery device 100, including a battery housing 10, a battery cell 20, a first mounting member 30, and a functional device 40; the battery housing 10 has a receiving cavity 3 and includes a first wall 11, which is disposed on one side of the receiving cavity 3; the battery cell 20 is installed in the receiving cavity 3; the first mounting member 30 is detachably installed on the first wall 11 and is located on the side of the first wall 11 away from the receiving cavity 3; the functional device 40 is detachably connected to the first mounting member 30 and is located on the side of the first mounting member 30 facing the first wall 11.

[0091] The battery device 100 mentioned in the embodiments of this application may include one or more battery cell assemblies for providing voltage and capacity. A battery cell assembly may include multiple battery cells 20, which are connected in series, parallel, or mixed connections via busbars.

[0092] In some embodiments, a battery cell assembly is typically formed by arranging multiple battery cells 20; as an example, a battery cell assembly can be a battery module, which is formed by arranging and fixing multiple battery cells 20 together to form a single module. As an example, a battery module can be formed by bundling multiple battery cells 20 together with cable ties.

[0093] In some embodiments, the battery device 100 may be a battery pack, which includes a battery housing 10 and one or more individual battery cells housed within the battery housing 10.

[0094] In some embodiments, the battery cell assembly can be a battery module, and the battery cell assembly can be housed in the battery housing 10 by fixing the battery module in the battery housing 10.

[0095] In some embodiments, the battery cell assembly may also be housed in the battery housing 10 by directly fixing multiple battery cells 20 to the battery housing 10.

[0096] In some embodiments, the battery housing 10 may include a first housing 1 and a second housing 2, the first housing 1 and the second housing 2 covering each other, and the first housing 1 and the second housing 2 together defining a receiving cavity 3 for accommodating the battery cell 20.

[0097] like Figure 4 The battery device 100 shown has a second housing 2 with a plate-like structure and a first housing 1 with a hollow structure open on one side. The opening side of the second housing 2 is closed to the opening side of the first housing 1.

[0098] Of course, the battery box 10 formed by the first box 1 and the second box 2 can be of various shapes, such as cylinder, cuboid, etc.

[0099] In some embodiments, the first wall 11 is the side wall of the first housing 1. Of course, the first wall 11 can also be the bottom wall of the first housing 1.

[0100] In some embodiments, the battery device 100 may also refer to an energy storage device, which includes a battery housing 10, and at least one side of the battery housing 10 has a door. Energy storage devices include energy storage containers, energy storage cabinets, etc.

[0101] The battery cell 20 mentioned in this embodiment may include an electrode assembly and an electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a separator.

[0102] In this embodiment, the first mounting member 30 is detachably mounted on the first wall 11 and located on the side of the first wall 11 away from the receiving cavity 3; the functional device 40 is detachably connected to the first mounting member 30 and located on the side of the first mounting member 30 facing the first wall 11. The functional device 40 is a detection device (leakage sensor, current sensor, etc.) or an active protection device (trigger fuse) of the battery device 100.

[0103] The functional device 40 is detachably installed on the first mounting part 30, which means that the functional device 40 is installed on the first mounting part 30 by means of mechanical connection such as bolt connection, snap-fit, plug-in, magnetic connection, etc., which can be removed and reinstalled after removal. The functional device 40 can be directly installed on the first mounting part 30 or indirectly installed on the first mounting part 30 through an intermediate medium.

[0104] In this embodiment, the first mounting component 30 can be a plate-shaped component or a block-shaped component. The first mounting component 30 is detachably mounted on the first wall 11, which means that the first mounting component 30 is mounted on the first wall 11 by mechanical connection methods such as mechanical bolt connection, snap-fit ​​connection, plug-in connection, magnetic connection, etc. The first mounting component 30 can be directly mounted on the first wall 11 or indirectly mounted on the first wall 11 through an intermediate medium.

[0105] When maintenance such as repair or replacement of functional device 40 is required, the connection between the first mounting part 30 and the first wall 11 can be removed first, and then the connection between functional device 40 and the first mounting part 30 can be removed before maintenance of functional device 40 can be performed. Compared with the installation method where functional device 40 is located inside the battery box 10, maintenance of functional device 40 can be carried out without opening the battery box 10, which is more convenient and faster.

[0106] Combined with appendix Figure 8 and 11 As shown, in some examples, optionally, the first mounting member 30 is provided with a support frame 31 on the side facing the first wall 11, and the functional device 40 is detachably connected to the support frame 31; the support frame 31 includes a first bottom wall 311 and first side walls 312 connected to both sides of the first bottom wall 311, the two first side walls 312 are respectively connected to the first mounting member 30, and the functional device 40 is connected to the first bottom wall 311.

[0107] The support frame 31 is disposed on the first surface 32 of the first mounting member 30 facing the first wall 11. The support frame 31 can be connected to the first mounting member 30 by welding, integral molding, or other methods. The support frame 31 mainly serves as an intermediate connection structure between the functional device 40 and the first mounting member 30.

[0108] The support frame 31 can be designed as a frame, cantilever or platform, and its material can be metal, engineering plastic or composite material. The specific shape and size are adapted to the installation requirements of the functional device 40.

[0109] The functional device 40 is fixed to the support frame 31 by a detachable connection. The detachable connection includes, but is not limited to, at least one of magnetic attraction, threaded connection or snap-fit. This embodiment will not list them all.

[0110] With the support frame 31, an indirect connection is formed between the functional device 40 and the first mounting member 30. Compared with the structural interference that may exist when the functional device 40 is directly fixed to the first mounting member 30, the presence of the support frame 31 provides a stable mounting base for the functional device 40, while maintaining a certain protective distance between the functional device 40 and the first mounting member 30 to reduce potential effects such as vibration, heat conduction or electrical interference.

[0111] The support frame 31 consists of a first bottom wall 311 and first side walls 312 symmetrically connected to its two sides, and has an overall U-shaped or channel-shaped structure. The support frame 31 can be manufactured in one piece by sheet metal stamping, injection molding or welding processes.

[0112] The first bottom wall 311 serves as the main bearing surface of the functional device 40, providing a flat mounting reference; the first side walls 312 on both sides are fixedly connected to the first mounting component 30 to form a stable support frame.

[0113] By extending the first sidewall 312, the support frame 31 raises the mounting position of the functional device 40, creating a physical isolation space between it and the first mounting component 30, effectively reducing stress concentration or heat conduction problems.

[0114] Combined with appendix Figure 8 and 11 As shown, in some examples, optionally, the battery device 100 includes a first connector 50, which is connected through a first bottom wall 311 and a functional device 40, and the functional device 40 and the first bottom wall 311 are detachably connected by the first connector 50.

[0115] The first connector 50 is inserted through and connected to the first bottom wall 311 and the functional device 40. In this embodiment, the first bottom wall 311 is provided with a first connecting hole 3111, and the functional device 40 extends with a connecting ear 41. The connecting ear 41 is provided with a second connecting hole 411. The first connector 50 is inserted through the first connecting hole 3111 and the second connecting hole 411 in sequence to realize the connection between the functional device 40 and the first bottom wall 311.

[0116] The first connector 50 and the first connecting hole 3111 can be plugged in or threaded. Similarly, the first connector 50 and the second connecting hole 411 can be plugged in or threaded, thereby achieving an indirect and detachable connection between the first bottom wall 311 and the functional device 40 through the first connector 50.

[0117] In this way, the connection between the first bottom wall 311 and the functional device 40 can be disconnected by removing the first connecting piece 50. The structure is simple and the disassembly and assembly are convenient.

[0118] In some embodiments, the first connector 50 is provided with a first external thread (not shown in the figure), and the first bottom wall 311 is provided with a first internal thread 3112, and the first external thread and the first internal thread 3112 are threadedly connected.

[0119] The first connector 50 is a bolt. The first connector 50 has a nut part and a screw part. The screw part is provided with a first external thread. The nut part is used to abut against the connecting lug 41 of the functional device 40.

[0120] The first bottom wall 311 is provided with a first internal thread 3112, which includes at least two embodiments: one is to directly machine the first internal thread 3112 into the first connecting hole 3111 of the first bottom wall 311, and the other is... Figure 9 A first tubular member 3114 is mounted on the first bottom wall 311, and the first tubular member 3114 is provided with a first internal thread 3112.

[0121] During assembly, the functional component 40 is first placed on the first bottom wall 311, then the first connector 50 is sequentially inserted and connected to the second connecting hole 411, and finally the first external thread and the first internal thread 3112 are threaded together.

[0122] The functional device 40 and the first bottom wall 311 connected by the above structure not only have good connection stability, but also can be connected or disconnected by simply twisting the first connector 50 when removing the functional device 40, which facilitates the assembly and disassembly of the functional device 40.

[0123] In some embodiments, the first mounting member 30 includes a first surface 32 facing the first wall 11, a first bottom wall 311, a first side wall 312 and the first surface 32 forming a relief groove 33 with openings at both ends along a first direction X, and a first connector 50 extending into the relief groove 33. The first direction X is parallel to the first surface 32 and intersects the arrangement direction of the functional device 40 to the first bottom wall 311.

[0124] In some embodiments, the first direction X may be the arrangement direction of the first housing 1 to the second housing 2.

[0125] Since the first bottom wall 311 and the two first side walls 312 in this embodiment form an approximately U-shaped structure, after docking with the first surface 32, a relief groove 33 with openings at both ends along the first direction X can be formed. The relief groove 33 facilitates the first connector 50 to be screwed into the first internal thread 3112.

[0126] In some embodiments, one end of the first connector 50 may be extended to abut against the first surface 32, which may further improve the stability of the first connector 50 after installation.

[0127] In some examples, optionally, one of the functional device 40 and the support frame 31 is provided with a first snap-fit ​​portion (not shown in the figure), and the other is provided with a first mating portion (not shown in the figure), and the functional device 40 and the support frame 31 are snap-fitted together by the first snap-fit ​​portion and the first mating portion.

[0128] The first snap-fit ​​part can be either a slot or an elastic buckle, and the first mating part can be either a slot or an elastic buckle. The functional device 40 and the support frame 31 are snapped together using the slot and the elastic buckle.

[0129] Compared to bolting the functional component 40 and the support frame 31, the snap-fit ​​method has the advantages of simple structure and easy disassembly and assembly of the functional component 40, but its stability after installation is not as good as the bolted connection method mentioned above.

[0130] Of course, in addition to the snap-fit ​​and bolt connection methods mentioned above, the functional device 40 and the support frame 31 can also be detachably connected by magnetic connection or plug-in connection. This embodiment will not list them in detail.

[0131] In some examples, the first snap-fit ​​portion may optionally include a first snap-fit, and the mating portion may optionally include a first slot.

[0132] The first latching part is provided on the functional device 40 and may include one or more first latches. The shape of the first latches is not limited, as long as they can be latched into the first latching slot.

[0133] When the functional device 40 needs to be installed, the operator aligns the first buckle on the functional device 40 with the first slot on the support frame 31, applies appropriate pressure to cause the buckle to elastically deform until it is fully inserted into the slot and then returns to its original shape, thus achieving a secure connection between the two. For disassembly, simply apply a reverse force to deform the buckle and disengage it from the slot.

[0134] The aforementioned snap-fit ​​and slot structure has the advantages of fewer parts and lower cost, making it easy to mass-produce. Moreover, it can be quickly assembled and disassembled without tools, and is easy to maintain. In addition, it also has the advantages of compact structure, space saving, and vibration reduction.

[0135] Combined again with the appendix Figure 8 As shown, in some examples, the support frame 31 is provided with a first anti-mistake part 3113, and the functional device 40 is provided with a second anti-mistake part 42. The first anti-mistake part 3113 and the second anti-mistake part 42 cooperate to prevent mistakes.

[0136] The mis-proofing cooperation of the first mis-proofing part 3113 and the second mis-proofing part 42 can reduce the possibility of the functional device 40 being installed backwards.

[0137] The first mistake-proof part 3113 can be a protrusion, a groove, or any other structure that can perform the mistake-proof function. Similarly, the second mistake-proof part 42 can be a protrusion, a groove, or any other structure.

[0138] The first error-proof part 3113 and the second error-proof part 42 cooperate to prevent incorrect assembly. This means that the matching structure of the first error-proof part 3113 and the second error-proof part 42 forms a unique correspondence. When the operator attempts to install incorrectly, the first error-proof part 3113 will mechanically interfere with the second error-proof part 42 to prevent the completion of the incorrect assembly action.

[0139] The presence of the first error-proof part 3113 and the second error-proof part 42 effectively solves the problem of reverse installation of the functional device 40, significantly improving assembly efficiency and reliability.

[0140] In some examples, optionally, the first foolproof part 3113 includes a foolproof protrusion, and the second foolproof part 42 includes a plug protruding from one end of the functional device 40. The functional device 40 includes a second surface 43 facing the first bottom wall 311 and a third surface 44 facing away from the first bottom wall 311. Along the arrangement direction of the second surface 43 to the third surface 44, the distance between the plug and the second surface 43 is greater than the distance between the plug and the third surface 44. The side of the plug facing the first bottom wall 311 abuts against or is spaced apart from the foolproof protrusion.

[0141] The anti-fooling protrusion can protrude from the side of the first bottom wall 311 away from the first mounting member 30, so as to facilitate direct contact with one end of the functional device 40.

[0142] Therefore, the anti-mistake protrusion can be directly set on the first bottom wall 311. Alternatively, the anti-mistake protrusion can be directly set on the first side wall 312, but it is necessary to make the anti-mistake protrusion extend in the direction away from the first surface 32 to protrude from the surface of the first bottom wall 311 away from the first mounting member 30.

[0143] To facilitate the molding of the anti-foolproof protrusion, in some embodiments, an opening 313 may be provided on the first bottom wall 311 and / or the first side wall 312, and the anti-foolproof protrusion may be integrally molded at the wall of the opening 313, thereby facilitating processing.

[0144] When the functional device 40 is installed on the first bottom wall 311, the end of the functional device 40 abuts against the anti-misfit protrusion, thereby reducing the possibility of the functional device 40 being installed backwards.

[0145] In this embodiment, the functional device 40 has a plug extending from its end face at one end. The functional device 40 includes a second surface 43 and a third surface 44 along its own thickness direction. Along the thickness direction of the functional device 40, the distance between the plug and the second surface 43 is greater than the distance between the plug and the third surface 44.

[0146] When the functional device 40 is not installed backwards, the second surface 43 abuts against the first bottom wall 311, and the plug abuts against or is spaced apart from the anti-misfit protrusion. At this time, the two do not interfere with each other. When the functional device 40 is installed backwards, the third surface 44 faces the first bottom wall 311. At this time, since the distance between the plug and the third surface 44 is small, the anti-misfit protrusion directly abuts against the third surface 44, making it impossible for the third surface 44 to fit against the first bottom wall 311. Therefore, assembly is impossible, which achieves the anti-misfit effect.

[0147] The plug can be a functional device 40 for docking with the internal structure of the battery device 100 (e.g., a battery management system).

[0148] The first error-proof protrusion 3113 has the advantages of simple structure and easy processing. Utilizing the protruding plug of the original functional device 40 as the second error-proof part 42 offers the advantages of multi-functionality, eliminating the need for a separate second error-proof part 42, and further reducing production costs.

[0149] In some examples, the first mounting member 30 may optionally have a first surface 32 facing the first wall 11, with the functional device 40 spaced apart from the first surface 32.

[0150] This structural design can improve the heat dissipation of the functional device 40 and extend its service life.

[0151] Combined with appendix Figure 5 , 6 As shown in Figure 9, in some examples, optionally, the battery device 100 further includes a second mounting member 70 located within the receiving cavity 3 and mounted on the first wall 11. The battery device 100 includes a second connector 60 that passes through and connects to the first mounting member 30, the first wall 11, and the second mounting member 70, so that the first mounting member 30 is detachably mounted on the first wall 11.

[0152] The second mounting member 70 can be a plate-shaped member or a frame-shaped member as shown in the figure. The frame-shaped member can be used to accommodate some of the functional devices 40, thereby reducing the overall thickness of the first mounting member 30, the second mounting member 70, the functional devices 40, and the sealing member 80 described below.

[0153] The first mounting member 30 has one or more third connecting holes 34, the second mounting member 70 has one or more fourth connecting holes 71, and the first wall 11 has a fifth connecting hole (not shown in the figure). Taking the one-to-one correspondence of multiple third connecting holes 34, multiple fourth connecting holes 71 and multiple fifth connecting holes as an example, the number of second connecting members 60 is also a matching multiple. Each second connecting member 60 can be inserted into a set of third connecting holes 34, fourth connecting holes 71 and fifth connecting holes, thereby realizing that the first mounting member 30 can be indirectly and detachably installed on the first wall 11.

[0154] At this time, the second connector 60 can be inserted into the third connector 34, the fourth connector 71 and the fifth connector respectively, and the first mounting piece 30 and the second mounting piece 70 can be disassembled and assembled by inserting and removing the second connector 60.

[0155] Compared to the method of directly and detachably installing the first mounting component 30 onto the first wall 11, the installation is achieved by adding a second mounting component 70 inside the battery box 10 and using the second connector 60 to pass through the first mounting component 30, the first wall 11 and the second mounting component 70 in sequence. The multi-layer connection design can suppress the risk of loosening and significantly improve the stability of the structure and the uniformity of load distribution.

[0156] Combined again with the appendix Figure 6 and 10 As shown, in some examples, the battery device 100 may optionally include a seal 80, which is mounted between the inner wall surface of the first wall 11 and the second mounting member 70, and a second connector 60 passes through the seal 80.

[0157] The seal 80 can be made of deformable materials such as rubber or silicone. The seal 80 can be a frame-shaped part as shown in the figure to accommodate some of the functional components 40.

[0158] The seal 80 is located inside the battery cell 20 and is installed between the inner wall surface of the first wall 11 and the second mounting member 70 to provide a seal and reduce the possibility of external dust entering the battery cell 20 through the connection hole or the receiving hole described below.

[0159] The sealing element 80 may be provided with a sixth connecting hole 81, through which the aforementioned second connecting element 60 passes, thereby fixing the sealing element 80 between the inner wall surface of the first wall 11 and the second mounting element 70.

[0160] After the first mounting component 30, the second mounting component 70, and the seal 80 are assembled, a Figure 11 The sequential connection method in the middle can improve the sealing performance between each connector and the connection hole by using the sealing element 80.

[0161] In some embodiments, the second connector 60 is provided with a second external thread (not shown in the figure), and the second mounting member 70 is provided with a second internal thread (not shown in the figure), and the second external thread and the second internal thread are threadedly connected.

[0162] The second connector 60 is a bolt. The second connector 60 has a nut portion and a screw portion. The screw portion is provided with the aforementioned second external thread. The nut portion is used to abut against the surface of the first mounting member 30 that is away from the first wall 11.

[0163] The second mounting component 70 has at least two structural methods for having a second internal thread: one is to directly machine the second internal thread into the fourth connecting hole 71, and the other is to install a second tubular component 72 on the fourth connecting hole 71, with the second internal thread machined inside the second tubular component 72.

[0164] When assembling the functional device 40, the second mounting part 70 and the sealing part 80 can be fixed to the first wall 11 firstly by means of bolts, buckles or other structures. Then, the assembled first mounting part 30 and the functional device 40 can be placed or pre-installed on the first wall 11 by means of a detachable mechanical connection. Finally, the second connecting part 60 is inserted and screwed to realize the connection of the second internal thread and the second external thread, so that the first mounting part 30 and the functional device 40 are stably fixed on the battery box 10.

[0165] When it is necessary to remove the functional component 40, simply remove the second connector 60 and the first connector 50 in sequence. The structure is simple, the disassembly and assembly are convenient, and it is conducive to the maintenance of the functional component 40.

[0166] In some examples, optionally, the first mounting member 30 is provided with a second snap-fit ​​portion (not shown in the figure), and the first wall 11 is provided with a second mating portion (not shown in the figure), and the second snap-fit ​​portion snaps into the second mating portion; or, the first wall 11 is provided with a third internal thread (not shown in the figure), the battery device 100 includes a third connector (not shown in the figure), the third connector is provided with a third external thread, the third connector passes through the first mounting member 30 and the first wall 11, and the third external thread is threadedly connected to the third internal thread.

[0167] The second snap-fit ​​part can be either an elastic buckle or a slot, and the second mating part can be either an elastic buckle or a slot. The elastic buckle and the slot can snap together to achieve the snap-fit ​​between the first mounting part 30 and the first wall 11.

[0168] Alternatively, a bolt with a third external thread can be inserted into the first mounting member 30, and then the bolt can be threaded into the third internal thread of the first wall 11, thereby achieving a threaded connection between the first mounting member 30 and the first wall 11.

[0169] The above method can omit the second mounting part 70 and the sealing part 80, and directly snap or bolt the first mounting part 30 to the first wall 11 to achieve a detachable connection between the two. This method is simpler than the above method of fixing the first mounting part 30 with the second mounting part 70 and the sealing part 80, but its structural stability and sealing performance need to be improved.

[0170] In some examples, the first wall 11 may optionally have a receiving structure 111 for receiving the functional device 40 so that the first mounting member 30 fits against the first wall 11.

[0171] The presence of the support frame 31 and the functional device 40 results in a gap between the first mounting member 30 and the first wall 11. In order to eliminate this gap and allow the first surface 32 of the first mounting member 30 to directly fit against the outer surface of the first wall 11, thereby improving the sealing performance of both, this embodiment is designed with a receiving structure 111.

[0172] The accommodating structure 111 in this embodiment can be a slot, hole, or other structure capable of accommodating some or all of the functional devices 40.

[0173] A receiving structure 111 is provided on the first wall 11. The receiving structure 111 can accommodate some or all of the functional devices 40, which not only improves the installation stability of the functional devices 40, but also enables the first mounting part 30 to fit against the first wall 11, thereby improving the installation stability of the first mounting part 30.

[0174] In some examples, the receiving structure 111 is optionally a receiving hole communicating with the receiving cavity 3, and the functional device 40 is mounted in the receiving hole and partially located within the receiving cavity 3.

[0175] The length and width of the receiving hole can be matched with the length and width of the functional device 40. After the first mounting member 30 is installed to the first wall 11 and fits against the first wall 11, the functional device 40 can be located entirely behind the receiving hole, or a part of the functional device 40 can be located in the receiving hole. Another part of the functional device 40 is accommodated in the second mounting member 70 and the seal 80 mentioned above. A further part of the functional device 40 (the part with the plug) extends into the receiving cavity 3 to facilitate docking with the circuit structure (e.g., battery management system) in the receiving cavity 3.

[0176] In some examples, the functional device 40 may optionally be at least one of a detection device and an active protection device of the battery device 100.

[0177] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, specific embodiments of this application are given below.

[0178] Finally, please see the appendix. Figure 4-11As shown, this application embodiment provides a battery device 100, including a battery housing 10, a battery cell 20, a first mounting member 30, and a functional device 40. The battery housing 10 has a receiving cavity 3 and includes a first wall 11, which is disposed on one side of the receiving cavity 3. The battery cell 20 is installed in the receiving cavity 3. The first mounting member 30 is detachably installed on the first wall 11 and is located on the side of the first wall 11 facing away from the receiving cavity 3. The functional device 40 is detachably connected to the first mounting member 30 and is located on the side of the first mounting member 30 facing the first wall 11. The functional device 40 is a detection device or an active protection device of the battery device 100. A support frame 31 is provided on the side of the first mounting member 30 facing the first wall 11, and the functional device 40 is detachably connected to the support frame 31. The support frame 31 includes a first bottom wall 311 and first side walls 312 connected to both sides of the first bottom wall 311. The two first side walls 312 are respectively connected to the first mounting member 30, and the functional device 40 is connected to the first bottom wall 311. The battery device 100 includes a first connector 50, which passes through and connects to a first bottom wall 311 and a functional device 40. The functional device 40 and the first bottom wall 311 are detachably connected via the first connector 50. A first mounting member 30 includes a first surface 32 facing the first wall 11, with the functional device 40 spaced apart from the first surface 32. One of the functional device 40 and the support frame 31 has a first snap-fit ​​portion, and the other has a first mating portion. The functional device 40 and the support frame 31 are engaged via the first snap-fit ​​portion and the first mating portion. The first snap-fit ​​portion includes a first latch, and the mating portion includes a first slot. The support frame 31 has a first foolproof part 3113, and the functional device 40 has a second foolproof part 42. The first foolproof part 3113 and the second foolproof part 42 are engaged to prevent fooling. The first anti-mistake part 3113 includes an anti-mistake protrusion, and the second anti-mistake part 42 includes a plug protruding from one end of the functional device 40. The functional device 40 includes a second surface 43 facing the first bottom wall 311 and a third surface 44 facing away from the first bottom wall 311. Along the arrangement direction of the second surface 43 to the third surface 44, the distance between the plug and the second surface 43 is greater than the distance between the plug and the third surface 44. The side of the plug facing the first bottom wall 311 is spaced apart from the anti-mistake protrusion. The first mounting member 30 has a first surface 32 facing the first wall 11, and the functional device 40 is spaced apart from the first surface 32. The battery device 100 also includes a second mounting member 70, which is located in the receiving cavity 3 and mounted on the first wall 11. The battery device 100 includes a second connector 60, which passes through and connects the first mounting member 30, the first wall 11, and the second mounting member 70, so that the first mounting member 30 can be detachably mounted on the first wall 11. The battery device 100 also includes a seal 80, which is installed between the inner wall surface of the first wall 11 and the second mounting member 70, and the second connector 60 passes through the seal 80.The first mounting member 30 has a second snap-fit ​​portion, and the first wall 11 has a second mating portion, with the second snap-fit ​​portion engaging with the second mating portion; alternatively, the first wall 11 has a third internal thread, and the battery device 100 includes a third connector with a third external thread, which passes through the first mounting member 30 and the first wall 11, with the third external thread threadedly connected to the third internal thread. The first wall 11 has a receiving structure 111 for accommodating the functional device 40, so that the first mounting member 30 fits snugly against the first wall 11. The receiving structure 111 is a receiving hole communicating with the receiving cavity 3, and the functional device 40 is installed in the receiving hole and partially located within the receiving cavity 3. The functional device 40 is at least one of a detection device and an active protection device of the battery device 100.

[0179] Combined again with the appendix Figure 1-3 As shown, in a second aspect, embodiments of this application provide an energy storage device, including a battery device 100 of any of the above-described technical solutions, wherein the battery device 100 is used to store or provide electrical energy.

[0180] Thirdly, embodiments of this application provide an energy storage system 2000, including an energy storage converter 400 and the aforementioned energy storage device, wherein the energy storage converter 400 is used to electrically connect the power generation device 3000 and the energy storage device.

[0181] Fourthly, embodiments of this application provide a charging network 1000, including a charging pile 300 and the aforementioned energy storage device or energy storage system 2000, wherein the energy storage device or energy storage system 2000 is used to provide electrical energy to the charging pile 300.

[0182] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for the intermediate technical features. However, these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A battery device, characterized by, The battery device comprises: a battery box body provided with a receiving cavity and comprising a first wall arranged at one side of the receiving cavity; a battery cell installed in the receiving cavity; a first mounting member detachably mounted on the first wall and located at a side of the first wall away from the receiving cavity, the first mounting member being provided with a support frame at a side facing the first wall; and a functional device located at a side of the first mounting member facing the first wall and detachably mounted on the support frame.

2. The battery device according to claim 1, characterized by The support frame comprises a first bottom wall and first side walls connected to both sides of the first bottom wall, the two first side walls being respectively connected to the first mounting member, and the functional device being connected to the first bottom wall.

3. The battery device of claim 2, wherein, The battery device comprises a first connecting member penetratingly connected to the first bottom wall and the functional device, the functional device and the first bottom wall being detachably connected through the first connecting member.

4. The battery device of claim 3, wherein The first mounting member comprises a first surface facing the first wall, the first bottom wall, the first side walls and the first surface surrounding an avoiding groove open at both ends in a first direction, the first connecting member extending into the avoiding groove, and the first direction being parallel to the first surface and intersecting the arrangement direction of the functional device to the first bottom wall.

5. The battery device of claim 2, wherein One of the functional device and the support frame is provided with a first clamping portion, and the other is provided with a first matching portion, and the functional device and the support frame are clamped and matched through the first clamping portion and the first matching portion.

6. The battery device of claim 5, wherein, The first clamping portion comprises a first buckle, and the first matching portion comprises a first clamping groove.

7. The battery device of claim 2, wherein The support frame is provided with a first foolproof portion, the functional device is provided with a second foolproof portion, and the first foolproof portion and the second foolproof portion are foolproof matched.

8. The battery device of claim 7, wherein, The first foolproof portion comprises a foolproof protrusion, the second foolproof portion comprises a plug protruding from one end of the functional device, the functional device comprises a second surface facing the first bottom wall and a third surface away from the first bottom wall, along the arrangement direction from the second surface to the third surface, the distance between the plug and the second surface is greater than the distance between the plug and the third surface, and the side of the plug facing the first bottom wall is abutted or spaced apart from the foolproof protrusion.

9. The battery device according to any one of claims 2, 3, and 5-8, characterized by, The first mounting member has a first surface facing the first wall, and the functional device is spaced apart from the first surface.

10. The battery device according to any one of claims 1 to 8, wherein The battery device further comprises a second mounting member located in the receiving cavity and mounted on the first wall, and the battery device comprises a second connecting member penetratingly connected to the first mounting member, the first wall and the second mounting member, so that the first mounting member is detachably mounted on the first wall.

11. The battery device of claim 10, wherein, The battery device further comprises a sealing member mounted between the inner wall surface of the first wall and the second mounting member, and the second connecting member penetrates the sealing member.

12. The battery device according to any one of claims 1 to 8, wherein The first mounting member is provided with a second clamping portion, the first wall is provided with a second matching portion, and the second clamping portion and the second matching portion are clamped. Alternatively, the first wall is provided with a third internal thread, the battery device comprises a third connecting member provided with a third external thread, the third connecting member is arranged through the first mounting member and the first wall, and the third external thread is threadedly connected with the third internal thread.

13. The battery device according to any one of claims 1 to 8, wherein The first wall is provided with a receiving structure for receiving the functional device, and the first mounting member is attached to the first wall.

14. The battery device of claim 13, wherein, The receiving structure is a receiving hole in communication with the receiving cavity, and the functional device is mounted in the receiving hole and partially located in the receiving cavity.

15. The battery device according to any one of claims 1 to 8, wherein The functional device is at least one of a detection device and an active protection device of the battery device.

16. An energy storage device, comprising: The battery device comprises a plurality of battery devices as claimed in any one of claims 1-15, and the battery devices are used for storing or providing electric energy.

17. An energy storage system characterized by, The energy storage system comprises an energy storage device as claimed in claim 16 and an energy storage converter for electrically connecting a power generation device and the energy storage device.

18. A charging network characterized in that, The energy storage system comprises a charging pile and an energy storage device as claimed in claim 16 or an energy storage system as claimed in claim 17, and the energy storage device or the energy storage system is used for providing electric energy for the charging pile.

Images