Battery and electric equipment

Abstract

The utility model provides a battery and electric equipment, and belongs to the technical field of battery manufacturing, the battery comprises a frame, a liquid cooling runner plate and an upper cover; the frame comprises a first frame, a second frame, a third frame and a fourth frame; the first frame and the second frame are arranged in the first direction and are oppositely arranged, the third frame and the fourth frame are arranged in the second direction and are oppositely arranged, the first frame, the second frame, the third frame and the fourth frame define a containing cavity, and the containing cavity is at least used for containing a battery module; the cold runner plate is arranged at the lower opening of the accommodating cavity, and the liquid cooling runner plate is fixedly connected with at least one of the first frame and the second frame; the upper cover is arranged at the upper opening of the accommodating cavity, and the upper cover is fixedly connected with the first frame, the second frame, the third frame and the fourth frame, so that the structure of the battery is more compact.

Description

Technical Field

[0001] This application relates to the technical field of battery manufacturing, and more particularly to a battery and an electrical device. Background Technology

[0002] With the increasing popularity of electric vehicles, charging demand is constantly rising. Battery module integration systems can balance grid load and reduce the impact of charging stations on the grid, thus possessing good market potential. A battery module consists of multiple battery cells, integrated through connectors and a management system, and is protected by a casing.

[0003] However, due to space constraints, most charging stations have stricter requirements on battery size. Existing batteries occupy a large volume, which cannot allow more energy density to be stored in a smaller space, thus failing to increase the device's range or efficiency.

[0004] Therefore, there is a lack of compact batteries in the current technology. Utility Model Content

[0005] This application provides a battery and an electrical device to solve the problem that the battery structure in the prior art is not compact enough.

[0006] In a first aspect, this application provides a battery, including a frame, a liquid-cooled flow channel plate, and a top cover;

[0007] The frame includes a first frame, a second frame, a third frame, and a fourth frame. The first frame and the second frame are arranged along a first direction and are opposite to each other. The third frame and the fourth frame are arranged along a second direction and are opposite to each other. The first frame, the second frame, the third frame, and the fourth frame form a receiving cavity, which is at least used to accommodate a battery module.

[0008] The top of the first border, the top of the second border, the top of the third border, and the top of the fourth border form an upper opening, and the bottom of the first border, the bottom of the second border, the bottom of the third border, and the bottom of the fourth border form a lower opening.

[0009] The liquid-cooled flow channel plate is disposed at the lower opening of the receiving cavity, and the liquid-cooled flow channel plate is fixedly connected to at least one of the first frame and the second frame;

[0010] The upper cover is disposed at the upper opening of the receiving cavity, and the upper cover is fixedly connected to the first frame, the second frame, the third frame and the fourth frame.

[0011] In one possible implementation, the liquid-cooled flow channel plate includes a first liquid-cooled section and a second liquid-cooled section arranged along the first direction;

[0012] The first liquid cooling unit is fixedly connected to the bottom end of the first frame, and the second liquid cooling unit is fixedly connected to the bottom end of the second frame;

[0013] The end of the first liquid cooling unit that is away from the first frame is fixed to the end of the second liquid cooling unit that is away from the second frame.

[0014] In one possible implementation, the first liquid cooling unit is integrally formed with the first frame, and the second liquid cooling unit is integrally formed with the second frame.

[0015] In one possible implementation, the liquid cooling channel plate is formed with liquid cooling channels, which include a plurality of extensions and connecting portions;

[0016] The plurality of extensions are arranged along the first direction, and the extensions extend along the second direction, which is perpendicular to the first direction.

[0017] The connecting portion extends along the second direction and connects at least two of the extension portions.

[0018] In one possible implementation, the liquid-cooled flow channel plate is formed with a receiving cavity, and a plurality of partitions are disposed within the receiving cavity;

[0019] The separators are arranged at intervals along the first direction, and the aforementioned extensions are formed between adjacent separators. In the second direction, adjacent separators are staggered.

[0020] In one possible implementation, the liquid-cooled flow channel plate further includes two fixing members, which are spaced apart along the second direction;

[0021] The first part of the fastener is fixed to the first liquid cooling part, and the second part of the fastener is fixed to the second liquid cooling part;

[0022] The aforementioned connection portion is formed between the surface of the fastener facing the extension and the end of the separator.

[0023] In one possible implementation, the upper cover is provided with a first mounting member, a second mounting member, a third mounting member, and a fourth mounting member;

[0024] The top cover is fixedly connected to the first frame via the first mounting member; the top cover is fixedly connected to the second frame via the second mounting member; the top cover is fixedly connected to the third frame via the third mounting member; and the top cover is fixedly connected to the fourth frame via the fourth mounting member.

[0025] In one possible implementation, the first mounting member includes a first fixing part and a first fitting part connected together, the first fixing part fitting to the surface of the upper cover facing the receiving cavity, and the first fitting part fitting to the outer surface of the first frame.

[0026] The second mounting component includes a second fixing part and a second fitting part connected together. The second fixing part fits against the surface of the upper cover facing the receiving cavity, and the second fitting part fits against the outer surface of the second frame.

[0027] The third mounting component includes a third fixing part and a third fitting part connected together. The third fixing part fits against the surface of the upper cover facing the receiving cavity, and the third fitting part fits against the outer surface of the third frame.

[0028] The fourth mounting component includes a fourth fixing part and a fourth fitting part connected together. The fourth fixing part fits against the surface of the upper cover facing the receiving cavity, and the fourth fitting part fits against the outer surface of the fourth frame.

[0029] In one possible implementation, the first fixing part and the top cover, the first fitting part and the first frame, the second fixing part and the top cover, the second fitting part and the second frame, the third fixing part and the top cover, the third fitting part and the third frame, the fourth fixing part and the top cover, and the fourth fitting part and the fourth frame are provided with corresponding fixing holes.

[0030] The first fixing part is fixed to the top cover, the first fitting part is fixed to the first frame, the second fixing part is fixed to the top cover, the second fitting part is fixed to the second frame, the third fixing part is fixed to the top cover, the third fitting part is fixed to the third frame, the fourth fixing part is fixed to the top cover, and the fourth fitting part is fixed to the fourth frame by fixing screws, and the fixing screws are threaded to the fixing holes;

[0031] A first sealing element is provided between the fixing screw and the fixing hole; the upper cover is connected to the first fixing part, the second fixing part, the third fixing part, and the fourth fixing part;

[0032] The upper cover has a second sealing element on the edge of the side facing the receiving cavity, and the width of the second sealing element is greater than the width of the first frame, the second frame, the third frame, and the fourth frame.

[0033] Secondly, this application provides an electrical device including the aforementioned battery.

[0034] This application provides a battery in which an optimized frame design, achieved by fixing a liquid-cooled flow channel plate to at least one of a first frame and a second frame, makes the overall battery structure more compact, effectively reducing volume occupation and accommodating more battery cells in a limited space, thereby increasing energy density. The integrated design of the liquid-cooled flow channel plate provides an efficient thermal management solution, enabling rapid heat dissipation and preventing battery overheating, which not only improves battery safety but also extends battery life. The fixed connection between the top cover and the first, second, third, and fourth frames enhances the structural strength of the battery module, prevents damage to the battery from external impacts, and provides good sealing to prevent the external environment from affecting the battery. Attached Figure Description

[0035] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0036] Figure 1 This is a schematic diagram of the battery structure provided in this embodiment;

[0037] Figure 2 This is a schematic diagram of the structure of the battery frame provided in this embodiment;

[0038] Figure 3 This is a schematic diagram of the structure of the liquid cooling channel plate in the battery provided in this embodiment;

[0039] Figure 4 This is a cross-sectional schematic diagram of the liquid cooling channel plate in the battery provided in this embodiment;

[0040] Figure 5 This is a schematic diagram of the liquid cooling channel of the liquid cooling channel plate in the battery provided in this embodiment;

[0041] Figure 6 This is a schematic diagram of the structure of the upper cover in the battery provided in this embodiment;

[0042] Figure 7 The present invention provides a schematic diagram of the structure of the first mounting component, the second mounting component, the third mounting component, and the fourth mounting component in the battery.

[0043] Explanation of reference numerals in the attached figures:

[0044] 110. First frame; 120. Second frame; 130. Third frame; 140. Fourth frame; 141. Connector mounting part; 142. High-voltage connector; 143. Low-voltage connector; 144. Vent valve; 146. Maintenance window; 150. Support beam; 151. Screw fixing hole; 160. Fixing screw;

[0045] 200. Battery module; 210. Sub-battery module; 220. Series busbar; 230. Output busbar; 240. Slave control module;

[0046] 300, Liquid-cooled flow channel plate; 301, Liquid-cooled flow channel; 3011, Extension; 3012, Connecting part; 310, First liquid-cooled part; 311, Inlet nozzle; 320, Second liquid-cooled part; 321, Outlet nozzle; 330, Separator; 340, Fixing part;

[0047] 400. Top cover; 410. First mounting component; 411. First fixing part; 412. First fitting part; 420. Second mounting component; 421. Second fixing part; 422. Second fitting part; 430. Third mounting component; 431. Third fixing part; 432. Third fitting part; 440. Fourth mounting component; 441. Fourth fixing part; 442. Fourth fitting part;

[0048] 510. Fixing hole; 520. Fixing pin; 530. First sealing element; 540. Second sealing element;

[0049] 600. Lifting structure;

[0050] 700. Anti-collision parts.

[0051] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely 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.

[0053] The terms "first," "second," "third," "fourth," etc. (if applicable) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. In embodiments of this application, the words "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Specifically, the use of the words "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0054] As mentioned in the background technology: batteries are crucial to the development of charging technology. A battery is composed of multiple battery cells and is integrated through connectors and management systems.

[0055] Due to space constraints, the requirements for battery size are more stringent. Reducing battery size allows more energy density to be stored in a smaller space, thereby increasing the device's battery life or efficiency.

[0056] Therefore, it is particularly important to find a solution to the problem of the battery's insufficiently compact structure.

[0057] like Figures 1-3 As shown in the figure, this application discloses a battery, including a frame, a liquid cooling channel plate 300 and a top cover 400.

[0058] The frame includes a first frame 110, a second frame 120, a third frame 130, and a fourth frame 140; the first frame 110 and the second frame 120 are arranged along a first direction and are positioned opposite each other, the third frame 130 and the fourth frame 140 are arranged along a second direction and are positioned opposite each other, the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140 form a receiving cavity, the receiving cavity being used to accommodate at least the battery module 200.

[0059] The top of the first border 110, the top of the second border 120, the top of the third border 130, and the top of the fourth border 140 form an upper opening, and the bottom of the first border 110, the bottom of the second border 120, the bottom of the third border 130, and the bottom of the fourth border 140 form a lower opening.

[0060] The liquid-cooled flow channel plate 300 is disposed in the lower opening of the receiving cavity, and the liquid-cooled flow channel plate 300 is fixedly connected to at least one of the first frame 110 and the second frame 120.

[0061] The upper cover 400 is disposed at the upper opening of the receiving cavity, and the upper cover 400 is fixedly connected to the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140.

[0062] By fixing the liquid-cooled flow channel plate 300 to at least one of the first frame 110 and the second frame 120, the optimized frame design makes the overall battery structure more compact, effectively reducing volume occupation and accommodating more battery cells in a limited space, thus improving energy density. The integrated design of the liquid-cooled flow channel plate 300 provides an efficient thermal management solution, enabling rapid heat dissipation and preventing battery overheating, which not only improves battery safety but also extends battery life. The fixed connection between the top cover 400 and the first frame 110, the second frame 120, the third frame 130, and the fourth frame 140 enhances the structural strength of the battery module, prevents damage to the battery from external impacts, and provides good sealing to prevent the external environment from affecting the battery.

[0063] It is important to know that the first direction can be the length direction of the battery, and the second direction is perpendicular to the first direction, which is the width direction of the battery.

[0064] In some embodiments, the liquid-cooled flow channel plate 300 includes a first liquid-cooled section 310 and a second liquid-cooled section 320 arranged along a first direction.

[0065] The first liquid cooling unit 310 is fixedly connected to the bottom end of the first frame 110, and the second liquid cooling unit 320 is fixedly connected to the bottom end of the second frame 120.

[0066] The end of the first liquid cooling section 310 that is away from the first frame 110 is fixed to the end of the second liquid cooling section 320 that is away from the second frame 120.

[0067] The design of the liquid-cooled flow channel plate 300 allows the cooling system to be integrated into the bottom of the battery without occupying additional horizontal space, thus transferring the necessary sealing width to the internal space of the battery. By directly connecting the liquid-cooled components to the first frame 110 and the second frame 120, the use of intermediate connecting parts is reduced, thereby reducing the complexity and volume of the overall structure. The liquid-cooled flow channel plate 300, through the layout of the first liquid-cooled part 310 and the second liquid-cooled part 320, achieves full coverage of the bottom of the battery, providing a uniform cooling effect, and can quickly dissipate the heat generated by the battery during operation, preventing local overheating and improving the safety and performance of the battery. The fixed connection between the first liquid-cooled part 310 and the first frame 110, and the second liquid-cooled part 320 and the second frame 120, enhances the overall structural strength of the battery, provides additional support and stability, reduces the impact of vibration and impact on the battery, and extends the battery's service life.

[0068] In some embodiments, the first liquid cooling part 310 is integrally disposed with the first frame 110, and the second liquid cooling part 320 is integrally disposed with the second frame 120.

[0069] By integrating the first liquid cooling unit 310 with the first frame 110 and the second liquid cooling unit 320 with the second frame 120, the use of independent components and connectors is reduced, thereby lowering the overall volume of the battery module 200. The integrated design eliminates the need for additional installation space for the liquid cooling system, further optimizing the space utilization of the battery. As part of the frame, the liquid cooling components can more directly contact and cool the critical areas of the battery module 200, improving heat transfer efficiency, ensuring uniform coverage of the liquid cooling system, and quickly dissipating the heat generated during battery operation to prevent local overheating. The integrated design enhances the structural integrity of the battery, reduces structural weaknesses that may result from improper component connections, improves the battery's vibration and impact resistance, and extends the battery's lifespan.

[0070] In some possible implementations, the third frame 130 and the fourth frame 140 are connected to the first frame 110 and the second frame 120 by welding. The third frame 130 and the fourth frame 140 are welded between the first frame 110 and the second frame 120, and the third frame 130 and the fourth frame 140 are arranged in parallel.

[0071] It should be noted that the first frame 110 and the second frame 120 can be formed by extruding aluminum profiles, and the first frame 110 and the second frame 120 can share a set of aluminum extrusion molds, which saves manufacturing costs.

[0072] Extruded aluminum profiles are aluminum products made by heating aluminum alloy to a certain temperature and pressing it into a profile mold to form a specific cross-sectional shape through an extrusion process. This manufacturing method allows aluminum alloys to be produced in various complex cross-sectional shapes and sizes, and is widely used in industries such as construction, transportation, electronics, and aerospace.

[0073] like Figure 4 As shown, in some embodiments, the liquid cooling channel plate 300 is formed with a liquid cooling channel 301, which includes a plurality of extensions 3011 and connecting portions 3012.

[0074] Multiple extensions 3011 are arranged along a first direction, and the extensions 3011 extend along a second direction, which is perpendicular to the first direction.

[0075] The connecting portion 3012 extends along the second direction and connects to at least two extension portions 3011.

[0076] like Figure 5As shown, the coolant can flow in the direction of the arrow. The liquid cooling channel plate 300 has a liquid cooling channel 301 for cooling the battery module 200. The extension 3011 is arranged in the first direction and extends in the second direction to form a coolant channel. The connecting part 3012 connects at least two extensions 3011 to form a complete cooling circuit.

[0077] The optimized layout of the liquid cooling channel 301 allows the cooling system to be integrated inside the battery without occupying additional external space. The channel design reduces unnecessary pipes and connectors, thereby lowering the overall structural complexity and volume. The layout of the extension 3011 and the connector 3012 ensures that the liquid cooling channel covers the critical areas of the battery module 200, achieving uniform cooling. It can quickly dissipate the heat generated by the battery module 200 during operation, preventing localized overheating and improving battery safety and performance. The modular design of the liquid cooling channel 301 allows for adjustments and optimizations based on different battery module requirements, increasing design flexibility.

[0078] In some embodiments, the liquid-cooled flow channel plate 300 is formed with a receiving cavity, and a plurality of partitions 330 are disposed in the receiving cavity.

[0079] The separators 330 are arranged at intervals along a first direction, and the aforementioned extension 3011 is formed between adjacent separators 330. In a second direction, adjacent separators 330 are staggered.

[0080] By setting a separator 330 in the receiving cavity, the staggered arrangement of the separator 330 forms an interlaced liquid cooling channel 301 layout, which increases the flow path and contact area of ​​the coolant, improves the heat exchange efficiency, and can quickly dissipate the heat generated by the battery module 200 during operation, prevent local overheating, and improve the safety and performance of the battery; the staggered separator 330 enhances the stability of the liquid cooling channel 301, reduces flow resistance and failure risk.

[0081] In some embodiments, the liquid-cooled flow channel plate 300 further includes two fasteners 340, which are arranged at intervals along a second direction.

[0082] The first part of the fastener 340 is fixed to the first liquid cooling part 310, and the second part of the fastener 340 is fixed to the second liquid cooling part 320.

[0083] The aforementioned connecting portion 3012 is formed between the surface of the fixing member 340 facing the extension 3011 and the end of the separator 330.

[0084] It should be noted that the fastener 340 is the plug for the first liquid cooling section 310 and the second liquid cooling section 320.

[0085] In some possible implementations, the first liquid cooling section 310 is provided with an inlet nozzle 311 at one end near the fourth frame 140, and the second liquid cooling section 320 is provided with an outlet nozzle 321 at one end near the fourth frame 140. The inlet nozzle 311 and the outlet nozzle 321 are used to connect to the coolant pipeline supplying coolant. The first liquid cooling section 310 and the second liquid cooling section 320 are connected by welding to ensure the communication between the first liquid cooling section 310 and the second liquid cooling section 320, as well as the sealing of the coolant.

[0086] In some possible implementations, the fourth frame 140 has a notch, and the inlet nozzle 311 and outlet nozzle 321 are respectively arranged in the notch. This makes full use of the space inside and outside the fourth frame 140, so that the coolant line can be stored in this position, avoiding the coolant line from being exposed outside the battery, and making the overall size of the battery structure more compact.

[0087] The battery also has a support beam 150 and a fixing screw 160.

[0088] The support beam 150 is installed on the opposite side of the third frame 130 and the fourth frame 140. The battery module 200 is set in the space formed by the support beam 150 and the first frame 110, the second frame 120, the third frame 130 and the fourth frame 140. The support beam 150 is provided with a plurality of screw fixing holes 151.

[0089] The fixing screw 160 is threadedly connected to the support beam 150 through the screw fixing hole 151. At least one fixing screw 160 is provided on each of the four sides of the battery module 200, and the fixing screw 160 is in contact with the surface of the battery module 200.

[0090] The fourth frame 140 is provided with a connector mounting part 141, which is used to mount a high-voltage connector 142 and a low-voltage connector 143.

[0091] The fourth frame 140 is also equipped with a vent valve 144, which is used to balance the pressure difference between the inside and outside of the receiving cavity. The fourth frame 140 also has a connector mounting part 141, which is mounted at the top of the fourth frame 140. The connector mounting part 141 is used to mount a high-voltage connector 142 and a low-voltage connector 143.

[0092] It is important to understand that the battery module 200 includes a series busbar 220, an output busbar 230, a slave control module 240, and at least one set of sub-battery modules 210. Adjacent sub-battery modules 210 are tightly fitted together. The series busbar 220 connects the positive and negative terminals of adjacent sub-battery modules 210, so that adjacent sub-battery modules 210 are connected in series. The output busbar 230 is electrically connected to the output terminal of the sub-battery module 210 and the high-voltage connector 142. The slave control module 240 is mounted on the fourth frame 140 through a mounting bracket. The slave control module 240 is electrically connected to the sub-battery module 210, the high-voltage connector 142, and the low-voltage connector 143.

[0093] The high-voltage connector 142 is used to connect to the main circuit of the sub-battery module 210 and transmit the high-voltage output of the sub-battery module 210 to the electric motor of the electric vehicle or other high-power loads.

[0094] Low-voltage connector 143 is typically used to transmit monitoring signals, temperature sensor data, and control signals from each individual cell in the sub-battery module 210. These signals are crucial for the battery management system (BMS) to help monitor and manage the battery's status and performance.

[0095] A maintenance window 146 is provided on the fourth frame 140. The maintenance window 146 corresponds to the position of the slave control module 240. The maintenance window 146 is covered by a removable maintenance panel.

[0096] The location of the maintenance window 146 allows the front maintenance window 146 to be opened when installing the battery module 200, so that the slave control module 240 can be installed, improving the installation efficiency of the device and facilitating maintenance.

[0097] In some possible embodiments, insulating elements are attached around the output busbar 230, the series busbar 220 and the slave control module 240, which can reinforce the insulation at weak points of the output busbar 230, the series busbar 220 and the slave control module 240.

[0098] The insulating component can be an insulating sheet made of PC material or an insulating sheet made of rubber.

[0099] In some embodiments, the top cover 400 is provided with a first mounting member 410, a second mounting member 420, a third mounting member 430 and a fourth mounting member 440.

[0100] The top cover 400 is fixedly connected to the first frame 110 via the first mounting member 410; the top cover 400 is fixedly connected to the second frame 120 via the second mounting member 420; the top cover 400 is fixedly connected to the third frame 130 via the third mounting member 430; and the top cover 400 is fixedly connected to the fourth frame 140 via the fourth mounting member 440.

[0101] With its multi-point fixing design, the top cover 400 can fit snugly against the four edges of the battery, reducing unnecessary space occupation and optimizing the overall volume of the battery. Multi-point fixing provides a more uniform force distribution, enhancing the structural strength and stability of the battery, reducing the risk of structural deformation or loosening due to vibration or impact, and improving battery reliability. The top cover 400 simplifies the assembly process and improves production efficiency through the fixed connection between the mounting parts and the four edges. The multi-point fixing design also facilitates subsequent maintenance and repair, reducing maintenance costs.

[0102] In some embodiments, the first mounting member 410 includes a first fixing part 411 and a first fitting part 412 connected to each other. The first fixing part 411 fits against the surface of the upper cover 400 facing the receiving cavity, and the first fitting part 412 fits against the outer surface of the first frame 110.

[0103] The second mounting component 420 includes a second fixing part 421 and a second fitting part 422 connected to each other. The second fixing part 421 fits against the surface of the upper cover 400 facing the receiving cavity, and the second fitting part 422 fits against the outer surface of the second frame 120.

[0104] The third mounting component 430 includes a third fixing part 431 and a third fitting part 432 connected to each other. The third fixing part 431 fits against the surface of the upper cover 400 facing the receiving cavity, and the third fitting part 432 fits against the outer surface of the third frame 130.

[0105] The fourth mounting member 440 includes a fourth fixing part 441 and a fourth fitting part 442 connected to each other. The fourth fixing part 441 fits against the surface of the upper cover 400 facing the receiving cavity, and the fourth fitting part 442 fits against the outer surface of the fourth frame 140.

[0106] Through the cooperative design of the first fixing part 411 and the first fitting part 412, the second fixing part 421 and the second fitting part 422, the third fixing part 431 and the third fitting part 432, and the fourth fixing part 441 and the fourth fitting part 442, the mounting parts can fit tightly against the top cover and the frame, reducing unnecessary space occupation. Compared with the sealing width generated by the traditional sealing method, the above technical solution can transfer the sealing width to the inside of the battery box. The design of the four mounting parts simplifies the connection process between the top cover 400 and the four frames, improving production efficiency. The combined design of the fitting part and the fixing part also facilitates subsequent maintenance and repair, reducing maintenance costs.

[0107] like Figures 6-7As shown, in some embodiments, the first fixing part 411 and the upper cover 400, the first fitting part 412 and the first frame 110, the second fixing part 421 and the upper cover 400, the second fitting part 422 and the second frame 120, the third fixing part 431 and the upper cover 400, the third fitting part 432 and the third frame 130, the fourth fixing part 441 and the upper cover 400, and the fourth fitting part 442 and the fourth frame 140 are provided with corresponding fixing holes 510.

[0108] The first fixing part 411 is connected to the top cover 400, the first fitting part 412 is connected to the first frame 110, the second fixing part 421 is connected to the top cover 400, the second fitting part 422 is connected to the second frame 120, the third fixing part 431 is connected to the top cover 400, the third fitting part 432 is connected to the third frame 130, the fourth fixing part 441 is connected to the top cover 400, and the fourth fitting part 442 is connected to the fourth frame 140. The fixing screws 520 are threadedly connected to the fixing holes 510.

[0109] A first seal 530 is provided between the fixing screw 520 and the fixing hole 510; the upper cover 400 is connected to the first fixing part 411, the second fixing part 421, the third fixing part 431 and the fourth fixing part 441.

[0110] The top cover 400 has a second seal 540 on the edge of the side facing the receiving cavity. The width of the second seal 540 is greater than the width of the first frame 110, the second frame 120, the third frame 130, and the fourth frame 140.

[0111] The fixing hole 510 has a certain recessed height to accommodate the first sealing element 530, reduce the sealing thickness, and improve the battery sealing performance.

[0112] The threaded connection between the fixing screw 520 and the fixing hole 510 provides reliable mechanical fixation and enhances structural strength; the use of the first seal 530 and the second seal 540 ensures the sealing of the connection, prevents dust and moisture from entering, and protects the internal battery module 200; the design of the fixing screw 520 simplifies the connection process between the top cover 400 and the frame and improves production efficiency.

[0113] During use, the sub-battery modules 210 are connected by connecting pieces and fixed to the support beam 150 by fixing screws 160. Due to the limiting of the support beam 150, the battery module 200 is fixed on the liquid cooling channel plate 300. There is a layer of adhesive gap between the bottom surface of the battery module 200 and the liquid cooling channel plate 300. Before installing the battery module 200, thermally conductive structural adhesive needs to be evenly applied to the liquid cooling channel plate 300.

[0114] Furthermore, adjacent sub-battery modules 210 are tightly fitted together, and the series busbar 220 connects the positive and negative terminals of adjacent sub-battery modules 210, so that adjacent sub-battery modules 210 are connected in series. The output busbar 230 is electrically connected to the output terminal of the sub-battery module 210 and the high-voltage connector 142. The slave control module 240 is mounted on the protrusion 322 through the mounting bracket, and the slave control module 240 is electrically connected to the sub-battery module 210, the high-voltage connector 142 and the low-voltage connector 143.

[0115] The slave control module 240 is responsible for monitoring important parameters such as voltage, current, and temperature of the sub-battery module 210. It typically collects these data in real time through sensors and performs analysis and processing to ensure that the sub-battery module 210 operates within a safe range of electrical parameters.

[0116] First, install the control module 240 inside the maintenance window. Simultaneously, install the high-voltage connector 142, the low-voltage connector 143, and the vent valve 144 into the fixed position of the fourth frame 140.

[0117] Furthermore, an output busbar 230 is installed between the output terminal of the sub-battery module 210 and the high-voltage connector 142.

[0118] A second sealing element 540 is attached to the bottom of the top cover 400 at the assembly positions with the first frame 110, the second frame 120, the third frame 130, and the fourth frame 140. First, the first fitting part 412 is fixed to the side of the first frame 110 facing the receiving cavity using fixing screws 520 and the first sealing element 530. Similarly, the second fitting part 422 is fixed to the second frame 120, the third fitting part 432 to the third frame 130, and the fourth fitting part 442 to the fourth frame 140.

[0119] Then, the first fixing part 411, the second fixing part 421, the third fixing part 431, and the fourth fixing part 441 are fixed with the upper cover 400 using fixing screws 520 and the first sealing member 530, thereby achieving the overall sealing of the first frame 110, the second frame 120, the third frame 130, the fourth frame 140 and the upper cover 400.

[0120] In some possible implementations, the first frame 110 and the second frame 120 have a lifting structure 600, which serves as a connection point between the battery and the transfer machine.

[0121] In some possible implementations, at least one pair of anti-collision elements 700 are installed at the two corners of the fourth frame 140 to prevent damage to the battery from collisions with the installation environment during installation.

[0122] This application provides an electrical device, including the battery described in the above embodiment.

[0123] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0124] It should be noted that the embodiments referred to in the specification, such as "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments," may include specific features, structures, or characteristics, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0125] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0126] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0127] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0128] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not 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 modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application. In the description of this utility model, it should be understood that the terms "comprising" and "having" and any variations thereof used herein are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0129] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0130] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A battery, characterized in that, Includes frame, liquid cooling flow channel plate (300) and top cover (400); The frame includes a first frame (110), a second frame (120), a third frame (130), and a fourth frame (140); the first frame (110) and the second frame (120) are arranged along a first direction and are opposite to each other, the third frame (130) and the fourth frame (140) are arranged along a second direction and are opposite to each other, the first frame (110), the second frame (120), the third frame (130) and the fourth frame (140) form a receiving cavity, the receiving cavity being used to accommodate at least a battery module (200); The top of the first border (110), the top of the second border (120), the top of the third border (130) and the top of the fourth border (140) form an upper opening, and the bottom of the first border (110), the bottom of the second border (120), the bottom of the third border (130) and the bottom of the fourth border (140) form a lower opening. The liquid-cooled flow channel plate (300) is disposed at the lower opening of the receiving cavity, and the liquid-cooled flow channel plate (300) is fixedly connected to at least one of the first frame (110) and the second frame (120); The upper cover (400) is disposed at the upper opening of the receiving cavity, and the upper cover (400) is fixedly connected to the first frame (110), the second frame (120), the third frame (130) and the fourth frame (140).

2. The battery according to claim 1, characterized in that, The liquid-cooled flow channel plate (300) includes a first liquid-cooled section (310) and a second liquid-cooled section (320) arranged along the first direction; The first liquid cooling part (310) is fixedly connected to the bottom end of the first frame (110), and the second liquid cooling part (320) is fixedly connected to the bottom end of the second frame (120). The end of the first liquid cooling part (310) away from the first frame (110) is fixed to the end of the second liquid cooling part (320) away from the second frame (120).

3. The battery according to claim 2, characterized in that, The first liquid cooling unit (310) is integrally formed with the first frame (110), and the second liquid cooling unit (320) is integrally formed with the second frame (120).

4. The battery according to claim 2, characterized in that, The liquid cooling channel plate (300) is formed with a liquid cooling channel (301), which includes a plurality of extensions (3011) and connecting portions (3012); The plurality of extensions (3011) are arranged along the first direction, and the extensions (3011) extend along the second direction, which is perpendicular to the first direction; The connecting portion (3012) extends along the second direction and connects at least two of the extension portions (3011).

5. The battery according to claim 4, characterized in that, The liquid-cooled flow channel plate (300) has a receiving cavity, and a plurality of partitions (330) are provided in the receiving cavity; The separators (330) are arranged at intervals along the first direction, and the extension (3011) is formed between adjacent separators (330). In the second direction, adjacent separators (330) are staggered.

6. The battery according to claim 5, characterized in that, The liquid-cooled flow channel plate (300) further includes two fasteners (340), which are arranged at intervals along the second direction; The first part of the fastener (340) is fixed to the first liquid cooling part (310), and the second part of the fastener (340) is fixed to the second liquid cooling part (320); The aforementioned connecting portion (3012) is formed between the surface of the fastener (340) facing the extension (3011) and the end of the separator (330).

7. The battery according to any one of claims 1-6, characterized in that, The upper cover (400) is provided with a first mounting member (410), a second mounting member (420), a third mounting member (430) and a fourth mounting member (440); The top cover (400) is fixedly connected to the first frame (110) via the first mounting member (410); the top cover (400) is fixedly connected to the second frame (120) via the second mounting member (420); the top cover (400) is fixedly connected to the third frame (130) via the third mounting member (430); and the top cover (400) is fixedly connected to the fourth frame (140) via the fourth mounting member (440).

8. The battery according to claim 7, characterized in that, The first mounting member (410) includes a first fixing part (411) and a first fitting part (412) connected to each other. The first fixing part (411) fits against the surface of the upper cover (400) facing the receiving cavity, and the first fitting part (412) fits against the outer surface of the first frame (110). The second mounting member (420) includes a second fixing part (421) and a second fitting part (422) connected to each other. The second fixing part (421) fits against the surface of the upper cover (400) facing the receiving cavity, and the second fitting part (422) fits against the outer surface of the second frame (120). The third mounting component (430) includes a third fixing part (431) and a third fitting part (432) connected to each other. The third fixing part (431) fits against the surface of the upper cover (400) facing the receiving cavity, and the third fitting part (432) fits against the outer surface of the third frame (130). The fourth mounting component (440) includes a fourth fixing part (441) and a fourth fitting part (442) connected to each other. The fourth fixing part (441) fits against the surface of the upper cover (400) facing the receiving cavity, and the fourth fitting part (442) fits against the outer surface of the fourth frame (140).

9. The battery according to claim 8, characterized in that, The first fixing part (411) and the upper cover (400), the first fitting part (412) and the first frame (110), the second fixing part (421) and the upper cover (400), the second fitting part (422) and the second frame (120), the third fixing part (431) and the upper cover (400), the third fitting part (432) and the third frame (130), the fourth fixing part (441) and the upper cover (400), and the fourth fitting part (442) and the fourth frame (140) are provided with corresponding fixing holes (510); The first fixing part (411) and the upper cover (400), the first fitting part (412) and the first frame (110), the second fixing part (421) and the upper cover (400), the second fitting part (422) and the second frame (120), the third fixing part (431) and the upper cover (400), the third fitting part (432) and the third frame (130), the fourth fixing part (441) and the upper cover (400), and the fourth fitting part (442) and the fourth frame (140) are fixed together by fixing screws (520), thereby completing the fixing between the upper cover (400) and the first frame (110), the second frame (120), the third frame (130) and the fourth frame (140). The fixing screws (520) are threadedly connected to the fixing holes (510). A first seal (530) is provided between the fixing screw (520) and the fixing hole (510); the upper cover (400) is connected to the first fixing part (411), the second fixing part (421), the third fixing part (431) and the fourth fixing part (441); The upper cover (400) has a second seal (540) on the side facing the receiving cavity, the width of the second seal (540) being greater than the width of the first frame (110), the second frame (120), the third frame (130), and the fourth frame (140).

10. An electrical appliance, characterized in that, Includes the battery as described in any one of claims 1-9.

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