Battery device and electric equipment

Abstract

The utility model relates to the technical field of batteries, and provides a battery device and electric equipment, and the battery device comprises a box body, and a first battery pack and a second battery pack which are located in the box body; a first avoiding groove is formed in the outer side of the box body, the first battery pack and the second battery pack are each provided with a first high-voltage leading-out terminal and a second high-voltage leading-out terminal, and one of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the first battery pack is connected with the first avoiding groove. And one of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the second battery pack extends to the first avoiding groove and is electrically connected with the first avoiding groove. According to the embodiment of the invention, the risk of high-voltage arc discharge during thermal diffusion of the battery device is reduced, and the safety performance of the battery device is further improved.

Description

Technical Field

[0001] This application relates to the field of battery technology, and in particular to a battery device and electrical equipment. Background Technology

[0002] Battery devices are core components of electrical equipment, and their performance directly affects the performance of the equipment.

[0003] In related technologies, battery packs generally include a housing, inside which are a lower frame for mounting lower battery modules and an upper frame for mounting upper modules. The lower and upper frames are connected by a bracket mounted on the inner wall of the housing. The housing also provides space for copper busbars and wiring harnesses. However, for battery packs with large capacities, reaching several hundred volts, the bridging connections between the upper and lower modules pose a risk of high-voltage arcing during cell thermal runaway and overall pack thermal diffusion. Utility Model Content

[0004] This application provides a battery device and electrical equipment that reduces the risk of high-voltage arcing during thermal diffusion of the battery device, thereby improving the safety performance of the battery device.

[0005] A first aspect of this application provides a battery device comprising at least:

[0006] The housing and the first and second battery packs located inside the housing;

[0007] The outer side of the housing is provided with a first clearance groove. The first battery pack and the second battery pack each have a first high-voltage lead-out terminal and a second high-voltage lead-out terminal. One of the first high-voltage lead-out terminal and the second high-voltage lead-out terminal of the first battery pack, and one of the first high-voltage lead-out terminal and the second high-voltage lead-out terminal of the second battery pack, extend to the first clearance groove and are electrically connected.

[0008] This embodiment of the application provides a first clearance groove on the outside of the housing. One of the first high-voltage lead-out terminals and the second high-voltage lead-out terminals of the first battery pack, as well as one of the first high-voltage lead-out terminals and the second high-voltage lead-out terminals of the second battery pack, extend into the first clearance groove and are electrically connected. This enables the first battery pack and the second battery pack to be connected at high voltage on the outside of the housing. In this way, the risk of high-voltage arcing during thermal diffusion of the battery device is reduced, thereby improving the safety performance of the battery device.

[0009] In one possible implementation, the first clearance groove is located on one side of the length direction of the housing.

[0010] In one possible implementation, the other of the first high-voltage lead-out terminal and the second high-voltage lead-out terminal of the first battery pack extends into the first clearance groove;

[0011] The other of the first high-voltage lead-out terminal and the second high-voltage lead-out terminal of the second battery pack extends into the first clearance groove.

[0012] In one possible implementation, the first high-voltage lead-out terminal is a positive high-voltage connection terminal, and the second high-voltage lead-out terminal is a negative high-voltage connection terminal;

[0013] The negative high-voltage connection terminal of the first battery pack and the positive high-voltage connection terminal of the second battery pack are electrically connected through a first adapter.

[0014] In one possible implementation, the first battery pack is provided with a positive high voltage lead-out at one end of the length direction of the housing, and the first battery pack is electrically connected to the positive high voltage connection terminal through the positive high voltage lead-out.

[0015] And / or, the second battery pack is provided with a negative high voltage lead-out at one end of the length direction of the housing, and the second battery pack is electrically connected to the negative high voltage connection terminal through the negative high voltage lead-out.

[0016] In one possible implementation, the negative high-voltage connection terminal of the first battery pack extends into the first clearance groove;

[0017] And / or, the positive high-voltage connection terminal of the second battery pack extends into the first clearance groove.

[0018] In one possible implementation, the first battery pack is provided with a negative high-voltage lead-out at one end of the length direction of the housing, and the first battery pack is electrically connected to the negative high-voltage connection terminal through the negative high-voltage lead-out.

[0019] The second battery pack has a positive high voltage lead-out at one end of the length direction of the housing, and the second battery pack is electrically connected to the positive high voltage connection terminal through the positive high voltage lead-out.

[0020] In one possible implementation, one of the first battery pack and the second battery pack has a first low-voltage lead-out terminal, and the other of the first battery pack and the second battery pack has a second low-voltage lead-out terminal.

[0021] Both the first low-voltage lead-out terminal and the second low-voltage lead-out terminal extend into the first clearance slot and are electrically connected.

[0022] In one possible implementation, the first low-voltage lead and the second low-voltage lead are electrically connected via a second adapter.

[0023] In one possible implementation, the sidewall of the housing is recessed inward to form the first clearance groove.

[0024] In one possible implementation, the housing includes a first housing and a second housing, with the first battery pack disposed in the first housing and the second battery pack disposed in the second housing.

[0025] The outer side of the first housing is provided with a first sub-avoidance groove, and the outer side of the second housing is provided with a second sub-avoidance groove. The first sub-avoidance groove and the second sub-avoidance groove are interconnected to form the first avoidance groove.

[0026] In one possible implementation, the first housing includes a first cold plate having a first joint; the second housing includes a second cold plate having a second joint.

[0027] Both the first connector and the second connector extend to the outside of the housing.

[0028] In one possible implementation, a second clearance groove is provided on the outer side of the housing, the second clearance groove being disposed at the bottom of the first clearance groove, and both the first connector and the second connector being located within the second clearance groove.

[0029] In one possible implementation, the sidewall of the first housing is recessed inward to form the first sub-avoidance groove;

[0030] And / or, the sidewall of the second housing is recessed inward to form the second sub-avoidance groove.

[0031] In one possible implementation, the first connector includes a first inlet connector and a first outlet connector, and the second connector includes a second inlet connector and a second outlet connector.

[0032] The first liquid inlet connector and the second liquid inlet connector are connected, and the first liquid outlet connector and the second liquid outlet connector are connected.

[0033] In one possible implementation, the first housing further includes a first tray and a first sealing cover, wherein the first cold plate, the first tray, and the first sealing cover together form a first receiving cavity;

[0034] The second housing also includes a second tray and a second sealing cover, and the second cold plate, the second tray, and the second sealing cover together form a second receiving cavity.

[0035] In one possible implementation, the first housing further includes a first tray, and the first cold plate, together with the first tray and the second cold plate, forms a first receiving cavity;

[0036] The second housing also includes a second tray and a second sealing cover, and the second cold plate, the second tray, and the second sealing cover together form a second receiving cavity.

[0037] In one possible implementation, it further includes: a protective plate; the protective plate is disposed on one side of the box along its length to cover the first clearance groove.

[0038] A second aspect of this application provides an electrical device comprising at least any of the battery devices described above.

[0039] By incorporating the aforementioned battery device into the electrical equipment, the performance of the electrical equipment can be improved. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the connection structure of the battery device provided in the embodiments of this application;

[0042] Figure 2 This is a schematic diagram of the disassembled structure of the battery device provided in the embodiments of this application;

[0043] Figure 3 A schematic diagram of the structure of the first battery pack and the second battery pack in the battery device provided in the embodiments of this application;

[0044] Figure 4 This is a partial structural schematic diagram of a battery device provided in an embodiment of this application;

[0045] Figure 5 This is a schematic diagram of the structure of the first housing in the battery device provided in the embodiments of this application;

[0046] Figure 6 This is another partial structural schematic diagram of the battery device provided in the embodiments of this application;

[0047] Figure 7 This is a schematic diagram of another partial structure of the battery device provided in the embodiments of this application.

[0048] Figure label:

[0049] 100-Battery Unit;

[0050] 110 - Enclosure;

[0051] 1101 - First clearance groove; 1102 - Second clearance groove;

[0052] 111-First housing; 1111-First sub-avoidance slot;

[0053] 1112 - First tray; 1113 - First sealing cap; 1114 - First receiving cavity;

[0054] 112 - Second housing; 1121 - Second sub-avoidance groove;

[0055] 1122 - Second tray; 1123 - Second sealing cap; 1124 - Second receiving cavity;

[0056] 1131 - First liquid inlet connector; 1132 - First liquid outlet connector;

[0057] 1141 - Second inlet connector; 1142 - Second outlet connector;

[0058] 116 - High-pressure port; 117 - Low-pressure port;

[0059] 1201 - First high-voltage lead-out terminal; 1202 - Second high-voltage lead-out terminal;

[0060] 1203 - Positive high-voltage lead-out; 1204 - Negative high-voltage lead-out;

[0061] 1205 - First Adapter;

[0062] 1206 - First low-voltage lead-out terminal; 1207 - Second low-voltage lead-out terminal;

[0063] 1208 - Second Adapter;

[0064] 121 - First battery pack; 122 - Second battery pack;

[0065] 1211-cell;

[0066] 1212 - Connecting piece; 1213 - Lead-out bar;

[0067] 130 - Protective plate;

[0068] 131 - Fastener; 132 - Through hole. Detailed Implementation

[0069] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0070] With the development of new energy sources, more and more fields are adopting new energy sources as power sources. Due to their advantages such as high energy density, rechargeability, safety, and environmental friendliness, batteries are widely used in new energy vehicles, consumer electronics, energy storage systems, and other fields.

[0071] Power batteries are a core component of new energy vehicles, and their safety directly affects the overall safety performance of the vehicle.

[0072] In related technologies, battery packs generally include a housing, inside which are a lower frame for mounting lower battery modules and an upper frame for mounting upper modules. The lower and upper frames are connected by a bracket mounted on the inner wall of the housing. The housing also provides space for copper busbars and wiring harnesses. However, for battery packs with large capacities, reaching several hundred volts, the bridging connections between the upper and lower modules pose a risk of high-voltage arcing during cell thermal runaway and overall pack thermal diffusion.

[0073] To address the aforementioned problems, this application provides a novel battery device and electrical equipment. The battery device includes a housing and a first battery pack and a second battery pack located within the housing. A first clearance groove is provided on the outer side of the housing. Both the first and second battery packs have a first high-voltage lead-out terminal and a second high-voltage lead-out terminal. One of the first and second high-voltage lead-out terminals of the first battery pack, and one of the first and second high-voltage lead-out terminals of the second battery pack, extend into the first clearance groove and are electrically connected. This application reduces the risk of high-voltage arcing during thermal diffusion in the battery device, thereby improving the safety performance of the battery device.

[0074] The following detailed description, in conjunction with the accompanying drawings, describes the explosion-proof valve, battery, battery device, and electrical equipment provided in the embodiments of this application.

[0075] Figure 1 This is a schematic diagram of the connection structure of the battery device provided in an embodiment of this application. Figure 2 This is a schematic diagram showing the disassembled structure of the battery device provided in an embodiment of this application. Figure 3 This is a schematic diagram of the structure of the first battery pack and the second battery pack in the battery device provided in the embodiments of this application. Figure 4This is a partial structural schematic diagram of a battery device provided in an embodiment of this application. Figure 5 This is a schematic diagram of the structure of the first housing in the battery device provided in the embodiments of this application. Figure 6 This is a schematic diagram of another part of the structure of the battery device provided in the embodiments of this application. Figure 7 This is a schematic diagram of another partial structure of the battery device provided in the embodiments of this application.

[0076] Reference Figures 1 to 4 As shown, this application provides a battery device 100, which includes at least a housing 110 and a first battery pack 121 and a second battery pack 122 located within the housing 110.

[0077] In this embodiment of the application, a first clearance groove 1101 may be provided on the outer side of the housing 110. The first battery pack 121 and the second battery pack 122 both have a first high voltage lead-out terminal 1201 and a second high voltage lead-out terminal 1202. One of the first high voltage lead-out terminal 1201 and the second high voltage lead-out terminal 1202 of the first battery pack 121 and the second high voltage lead-out terminal 1201 and the second high voltage lead-out terminal 1202 of the second battery pack 122 can extend to the first clearance groove 1101 and be electrically connected.

[0078] By providing a first clearance groove 1101 on the outside of the housing 110, one of the first high-voltage lead-out terminals 1201 and 1202 of the first battery pack 121, and one of the first high-voltage lead-out terminals 1201 and 1202 of the second battery pack 122 extend to the first clearance groove 1101 and are electrically connected, the first battery pack 121 and the second battery pack 122 can be electrically connected on the outside of the housing 110.

[0079] In this way, the first battery pack 121 and the second battery pack 122 are connected by high voltage outside the housing 110, which reduces the risk of high voltage arcing during thermal diffusion of the battery device 100, thereby improving the safety performance of the battery device 100.

[0080] It should be noted that, in this embodiment of the application, the first clearance groove 1101 may be located on one side of the length direction of the housing 110.

[0081] In this embodiment, the other of the first high-voltage lead-out terminal 1201 and the second high-voltage lead-out terminal 1202 of the first battery pack 121 can extend into the first clearance groove 1101. Similarly, the other of the first high-voltage lead-out terminal 1201 and the second high-voltage lead-out terminal 1202 of the second battery pack 122 can extend into the first clearance groove 1101.

[0082] In some embodiments, the first high-voltage lead-out terminal 1201 can be a positive high-voltage connection terminal, and the second high-voltage lead-out terminal 1202 can be a negative high-voltage connection terminal. For example... Figure 3 and Figure 4 As shown, the positive high-voltage connection terminal of the first battery pack 121 and the negative high-voltage connection terminal of the second battery pack 122 can both extend to the first clearance groove 1101 and be electrically connected.

[0083] In one possible implementation, see [link to relevant documentation]. Figure 6 As shown, the positive high-voltage connection terminal of the first battery pack 121 and the negative high-voltage connection terminal of the second battery pack 122 can be electrically connected through the first adapter 1205.

[0084] It should be noted that, in this embodiment of the application, a positive high voltage lead-out bar 1203 may be provided at one end of the first battery pack 121 in the length direction of the housing 110, and the first battery pack 121 may be electrically connected to the positive high voltage connection terminal through the positive high voltage lead-out bar 1203.

[0085] And / or, the second battery pack 122 may be provided with a negative high voltage lead-out 1204 at one end of the housing 110 along its length, and the second battery pack 122 may be electrically connected to the negative high voltage connection terminal through the negative high voltage lead-out 1204.

[0086] In this embodiment, the negative high-voltage connection terminal of the first battery pack 121 can extend into the first clearance groove 1101.

[0087] And / or, the positive high-voltage connection terminal of the second battery pack 122 may extend into the first clearance groove 1101.

[0088] It should be noted that, in this embodiment of the application, the first battery pack 121 may be provided with a negative high voltage lead-out 1204 at one end of the length direction of the housing 110, and the first battery pack 121 may be electrically connected to the negative high voltage connection terminal through the negative high voltage lead-out 1204.

[0089] The second battery pack 122 may have a positive high voltage lead-out 1203 at one end of the length direction of the housing 110. The second battery pack 122 can be electrically connected to the positive high voltage connection terminal through the positive high voltage lead-out 1203.

[0090] It should be noted that, in the embodiments of this application, the positive high voltage lead-out can be an aluminum busbar, and the negative high voltage lead-out can be a copper busbar.

[0091] It is understood that, in the embodiments of this application, one of the first battery pack 121 and the second battery pack 122 may have a first low-voltage lead-out terminal 1206, and the other of the first battery pack 121 and the second battery pack 122 may have a second low-voltage lead-out terminal 1207. Both the first low-voltage lead-out terminal 1206 and the second low-voltage lead-out terminal 1207 extend to the first clearance groove 1101 and are electrically connected.

[0092] In one possible implementation, see [link to relevant documentation]. Figure 2 As shown, the first low-voltage lead-out terminal 1206 and the second low-voltage lead-out terminal 1207 can be electrically connected via a second adapter 1208. Low-voltage cascaded communication between the first battery pack 121 and the second battery pack 122 can be achieved through the second adapter 1208.

[0093] In this embodiment of the application, the sidewall of the housing 110 may be recessed inward to form a first clearance groove 110.

[0094] In this embodiment of the application, the housing 110 may include a first housing 111 and a second housing 112, wherein the first battery pack 121 may be disposed in the first housing 111 and the second battery pack 122 may be disposed in the second housing 112.

[0095] The outer side of the first housing 111 may be provided with a first sub-avoidance groove 1111, and the outer side of the second housing 112 may be provided with a second sub-avoidance groove 1121. The first sub-avoidance groove 1111 and the second sub-avoidance groove 1121 are interconnected to form a first avoidance groove 1101.

[0096] In this embodiment of the application, the first housing 111 may include a first cold plate (not shown in the figure), wherein the first cold plate may have a first joint. The second housing 112 may include a second cold plate (not shown in the figure), wherein the second cold plate may have a second joint.

[0097] In some embodiments, both the first connector and the second connector may extend to the outside of the housing 110.

[0098] Additionally, in the embodiments of this application, such as Figure 5 As shown, a second clearance groove 1102 can also be provided on the outer side of the housing 110. The second clearance groove 1102 can be located at the bottom of the first clearance groove 1101, and both the first connector and the second connector can be located within the second clearance groove 1102. By arranging the first connector and the second connector on the outer side of the housing 110, the impact of coolant leakage on the entire package is greatly reduced.

[0099] In one possible implementation, the sidewall of the first housing 111 may be recessed inward to form a first sub-avoidance groove 1111. And / or, the sidewall of the second housing 112 may be recessed inward to form a second sub-avoidance groove 1121.

[0100] Additionally, in this embodiment, the first sub-clearance groove 1111 of the first housing 111 may be provided with a high-pressure port 116 and a low-pressure port 117 (see...). Figure 5 As shown), the high-voltage port 116 is used for the first high-voltage lead-out terminal 1201 and the second high-voltage lead-out terminal 1202 of the first battery pack 121 to pass through, and the low-voltage port 117 is used for the first low-voltage lead-out terminal 1206 of the first battery pack 121 to pass through.

[0101] Similarly, a high-pressure port 116 and a low-pressure port 117 can be provided on the second sub-clearance groove 1121 of the second housing 112 (see Figure 5 As shown), the high-voltage port 116 is used for the first high-voltage lead-out terminal 1201 and the second high-voltage lead-out terminal 1202 of the second battery pack 122 to pass through, and the low-voltage port 117 is used for the second low-voltage lead-out terminal 1207 of the second battery pack 122 to pass through.

[0102] In addition, such as Figure 3 As shown in the embodiments of this application, the first battery pack 121 and the second battery pack 122 may each include a connecting piece 1212, a lead-out bar 1213 and a plurality of battery cells 1211. The plurality of battery cells 1211 are electrically connected to the lead-out bar 1213 through the connecting piece 1212. The lead-out bar 1213 is electrically connected to the positive high voltage lead-out bar 1203 or the negative high voltage lead-out bar 1204.

[0103] In this embodiment, the arrangement of multiple cells 1211 in the first battery pack 121 and multiple cells 1211 in the second battery pack 122 is consistent. This allows the first battery pack 121 and the second battery pack 122 to share flexible circuit boards and battery information acquisition devices, thus saving development costs.

[0104] Furthermore, the embodiments of this application do not limit the arrangement of the first battery pack 121 and the second battery pack 122, nor the number of multiple cells 1211 in the first battery pack 121 and the number of multiple cells 1211 in the second battery pack 122.

[0105] In this embodiment, the first connector may include a first liquid inlet connector 1131 and a first liquid outlet connector 1132, and the second connector may include a second liquid inlet connector 1141 and a second liquid outlet connector 1142. The first liquid inlet connector 1131 and the second liquid inlet connector 1141 are connected, and the first liquid outlet connector 1132 and the second liquid outlet connector 1142 are connected. This enables the cooling medium in the first cold plate and the cooling medium in the second cold plate to enter and exit simultaneously.

[0106] It should be noted that, in the embodiments of this application, the specific structural design of the first housing 111 may include, but is not limited to, the following two possible implementation methods:

[0107] One possible implementation is that the first housing 111 further includes a first tray 1112 and a first sealing cover 1113, and the first cold plate together with the first tray 1112 and the first sealing cover 1113 forms a first receiving cavity 1114.

[0108] The second housing 112 also includes a second tray 1122 and a second sealing cover 1123. The second cold plate, together with the second tray 1122 and the second sealing cover 1123, forms a second receiving cavity 1124.

[0109] Another possible implementation is that the first housing 111 also includes a first tray 1112, and the first cold plate, the first tray 1112 and the second cold plate together form a first receiving cavity 1114.

[0110] The second housing 112 also includes a second tray 1122 and a second sealing cover 1123. The second cold plate, together with the second tray 1122 and the second sealing cover 1123, forms a second receiving cavity 1124.

[0111] Reference Figure 7 As shown in the embodiment of this application, the battery device 100 may further include a protective plate 130, wherein the protective plate 130 may be disposed on one side of the housing 110 along its length to cover the first clearance groove 1101. The protective plate 130 can protect the components within the first clearance groove 1101.

[0112] In some embodiments, the protective plate 130 may have multiple through holes 132, through which multiple fasteners 131 pass to cover the first clearance groove 1101. In this way, the protective plate 130 can be disassembled for easy maintenance.

[0113] In this embodiment, the first battery pack 121 and the second battery pack 122 are designed independently, and a high-voltage connection between the first battery pack 121 and the second battery pack 122 is achieved through the first adapter 1205. For battery packs with a higher voltage platform, this reduces the risk of high-voltage arcing and effectively reduces the impact between upper and lower modules when thermal diffusion occurs throughout the pack.

[0114] Furthermore, this application embodiment also provides an electrical device, which may include at least the battery device 100 described above.

[0115] The electrical equipment of this utility model can be conventional electrical equipment in the field, such as power equipment (e.g., electric vehicles), electronic equipment (e.g., computers, mobile phones, digital cameras, printers, fax machines, etc.), wearable devices (e.g., watches, bracelets, VR glasses, etc.), and home appliances (e.g., air conditioners, refrigerators, washing machines, microwave ovens, etc.), etc., without any particular limitation.

[0116] Taking a vehicle as an example, the vehicle can be a sedan, bus, or truck. For instance, the vehicle can be an electric vehicle (EV), a pure electric vehicle / battery electric vehicle (PEV / BEV), a hybrid electric vehicle (HEV), a range-extended electric vehicle (REEV), a plug-in hybrid electric vehicle (PHEV), a new energy vehicle, or any vehicle with a battery device 100.

[0117] The vehicle may also include a body, an axle, and a motor, wherein the battery device 100, the axle, and the motor may all be mounted on the body. The battery device 100 may be electrically connected to the motor, and the motor may be connected to the axle. The battery device 100 can supply power to the motor, enabling the motor to rotate, and the motor, in turn, can drive the axle to rotate, thereby allowing the vehicle to move.

[0118] The vehicle body may include a vehicle chassis and a body mounted on the chassis. The body may have a passenger compartment, which may include a driver's seat, passenger seats, etc., where the driver can operate the vehicle. For example, the vehicle body may also include structural components such as a steering wheel, clutch, and brakes to enable the vehicle to perform its full functions; this application does not impose any limitations on these components.

[0119] By incorporating the aforementioned battery device 100 into the electrical equipment, the performance of the electrical equipment can be improved.

[0120] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0121] In the description of this utility model, it should be understood that the terms "may include" and "have" as used herein, and any variations thereof, 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 that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0122] Unless otherwise explicitly 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 of a unit. Connections can be direct or indirect, via an intermediate medium, and can refer to internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on 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.

[0123] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this 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. 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 utility model.

Claims

1. A battery device, characterized by, The application relates to a battery pack, comprising: a box body and a first battery pack and a second battery pack arranged in the box body; a first avoiding groove is arranged on the outer side of the box body, the first battery pack and the second battery pack are each provided with a first high-voltage leading-out terminal and a second high-voltage leading-out terminal; one of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the first battery pack and one of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the second battery pack extend to the first avoiding groove and are electrically connected.

2. The battery device according to claim 1, characterized by The first avoiding groove is arranged on one side in the length direction of the box body.

3. The battery device of claim 1, wherein The other of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the first battery pack extends to the first avoiding groove; The other of the first high-voltage leading-out terminal and the second high-voltage leading-out terminal of the second battery pack extends to the first avoiding groove.

4. The battery device of claim 1, wherein The first high-voltage leading-out terminal is a positive high-voltage connecting terminal, and the second high-voltage leading-out terminal is a negative high-voltage connecting terminal; The negative high-voltage connecting terminal of the first battery pack and the positive high-voltage connecting terminal of the second battery pack are electrically connected through a first adapter.

5. The battery device of claim 4, wherein The first battery pack is provided with a positive high-voltage leading-out row on one end in the length direction of the box body, and the first battery pack is electrically connected with the positive high-voltage connecting terminal through the positive high-voltage leading-out row; And / or, the second battery pack is provided with a negative high-voltage leading-out row on one end in the length direction of the box body, and the second battery pack is electrically connected with the negative high-voltage connecting terminal through the negative high-voltage leading-out row.

6. The battery device of claim 4, wherein The negative high-voltage connecting terminal of the first battery pack extends to the first avoiding groove; And / or, the positive high-voltage connecting terminal of the second battery pack extends to the first avoiding groove.

7. The battery device of claim 6, wherein The first battery pack is provided with a negative high-voltage leading-out row on one end in the length direction of the box body, and the first battery pack is electrically connected with the negative high-voltage connecting terminal through the negative high-voltage leading-out row; The second battery pack is provided with a positive high-voltage leading-out row on one end in the length direction of the box body, and the second battery pack is electrically connected with the positive high-voltage connecting terminal through the positive high-voltage leading-out row.

8. The battery device of claim 1, wherein One of the first battery pack and the second battery pack is provided with a first low-voltage leading-out terminal, and the other of the first battery pack and the second battery pack is provided with a second low-voltage leading-out terminal; The first low-voltage leading-out terminal and the second low-voltage leading-out terminal each extend to the first avoiding groove and are electrically connected.

9. The battery device of claim 8, wherein, The first low-voltage leading-out terminal and the second low-voltage leading-out terminal are electrically connected through a second adapter.

10. The battery device according to any one of claims 1 to 9, wherein The side wall of the box body is inwardly recessed to form the first avoiding groove.

11. The battery device according to any one of claims 1 to 9, wherein The box body comprises a first box body and a second box body, the first battery pack is arranged in the first box body, and the second battery pack is arranged in the second box body; The outer side of the first box body is provided with a first sub-avoiding groove, and the outer side of the second box body is provided with a second sub-avoiding groove, the first sub-avoiding groove and the second sub-avoiding groove are communicated with each other to form the first avoiding groove.

12. The battery device of claim 11, wherein, The first box body comprises a first cold plate, and the first cold plate is provided with a first joint. The second box body comprises a second cold plate having a second joint; The first joint and the second joint both extend to the outside of the box body.

13. The battery device of claim 12, wherein, The outside of the box body is further provided with a second avoiding groove, which is arranged at the groove bottom of the first avoiding groove, and the first joint and the second joint are both arranged in the second avoiding groove.

14. The battery device of claim 11, wherein, The side wall of the first box body is inwardly recessed to form the first sub-avoiding groove; And / or, the side wall of the second box body is inwardly recessed to form the second sub-avoiding groove.

15. The battery device according to claim 12 or 13, characterized by, The first joint comprises a first liquid inlet joint and a first liquid outlet joint, and the second joint comprises a second liquid inlet joint and a second liquid outlet joint; The first liquid inlet joint and the second liquid inlet joint are in communication, and the first liquid outlet joint and the second liquid outlet joint are in communication.

16. The battery device according to claim 12 or 13, characterized by The first box body further comprises a first tray and a first sealing cover, and the first cold plate, the first tray and the first sealing cover jointly form a first containing cavity; The second box body further comprises a second tray and a second sealing cover, and the second cold plate, the second tray and the second sealing cover jointly form a second containing cavity.

17. The battery device of claim 12 or 13, wherein, The first box body further comprises a first tray, and the first cold plate, the first tray and the second cold plate jointly form a first containing cavity; The second box body further comprises a second tray and a second sealing cover, and the second cold plate, the second tray and the second sealing cover jointly form a second containing cavity.

18. The battery device of any one of claims 1-9, wherein, Further comprising: a protective plate; The protective plate cover is arranged at one side of the length direction of the box body to cover the first avoiding groove.

19. An electrical appliance, characterized in that, At least comprising: The battery device of any one of claims 1-18.

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