Battery device and electric equipment

Abstract

The utility model relates to the technical field of battery equipment, and discloses a battery device and electric equipment. The battery device comprises a battery box body, a battery monomer assembly and an electrical assembly, the battery box body comprises a box body, a first bin cover and a second bin cover, the box body is provided with a first containing bin and a second containing bin, a first bin opening of the first containing bin and a second bin opening of the second containing bin are formed in the two opposite sides of the box body respectively, the first bin cover covers the first bin opening, and the second bin cover covers the second bin opening. The battery monomer assembly is arranged in the first containing bin, the electrical assembly is electrically connected with the battery monomer assembly, the connecting edge of the second bin cover is connected with the box body so that the second bin cover can turn over relative to the box body, the second bin cover is provided with an installation plate face, and the electrical assembly is installed on the installation plate face. The electrical assembly is contained in the second containing bin when the second bin opening is covered with the second bin cover. By applying the technical scheme, the problems of complex repair procedures and low working efficiency in the whole repair process of the battery device are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery device, and particularly relates to a battery device and an electric equipment. BACKGROUND

[0002] In the current battery device, a battery compartment and an electrical compartment are sealed and protected by an upper cover. The battery compartment is used to install battery monomers, heat insulation pads, sampling elements and other battery monomer components. The electrical compartment is used to install relays, fuse elements, current sensors and other electrical components for controlling high and low voltages. When the battery device is installed on a support body, the upper cover is arranged towards the support body.

[0003] In the battery device, the fuse, the fuse element and other electrical components in the electrical components are prone to failure. Therefore, the frequency of after-sales repair for the electrical components is relatively high. When the battery device is repaired after being sold, the staff needs to first remove the battery device from the support body of the electric equipment as a whole, and then remove the upper cover. At this time, the battery monomer components in the battery compartment and the electrical components in the electrical compartment are exposed at the same time, and the staff can repair or replace the electrical components in the electrical compartment. It can be seen that the current battery device needs to be repaired after being sold. The staff needs to perform a complex disassembly process before repairing or replacing the electrical components. After completing the repair work or replacement work, the staff needs to perform a complex installation process again to reinstall the battery device on the support body of the electric equipment. The repair process of the entire repair process is complex and the work efficiency is low. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a battery device and an electric equipment, and aims to solve the problem of complex repair process of the battery device.

[0005] To achieve the above-mentioned purpose, according to the first aspect of the embodiment of the application, a battery device is provided, which comprises a battery box body, a battery monomer component and an electrical component. The battery box body comprises a box main body, a first compartment cover and a second compartment cover. The box main body has a first containing compartment and a second containing compartment. The first containing compartment has a first compartment opening, and the second containing compartment has a second compartment opening. The first compartment opening and the second compartment opening are respectively arranged on the opposite sides of the box main body. The first compartment cover is covered on the first compartment opening, and the second compartment cover is covered on the second compartment opening. The battery monomer component is arranged in the first containing compartment, and the electrical component is accommodated in the second containing compartment. The electrical component is electrically connected with the battery monomer component. The second compartment cover has a connecting edge, and the connecting edge is rotatably connected with the box main body, so that the second compartment cover can be flipped relative to the box main body. The side of the second compartment cover facing the second containing compartment has a mounting plate surface, and the electrical component is mounted on the mounting plate surface. The electrical component is accommodated in the second containing compartment when the second compartment cover covers the second compartment opening.

[0006] The battery device provided by the embodiment of the application houses the battery monomer assembly and the electrical assembly separately in the first containing bin and the second containing bin of the box body, and the first bin opening of the first containing bin is covered by the first bin cover, and the second bin opening of the second containing bin is covered by the second bin cover, wherein the first bin cover and the second bin cover are respectively located on the two sides of the box body. When the battery device is returned for repair, especially when the electrical assembly of the battery device is repaired or replaced, the worker does not need to disassemble the battery device from the support body, and the worker only needs to directly open the second bin cover to expose the electrical assembly in the second containing bin, so that the worker can repair or replace the electrical assembly. After the repair or replacement is completed, the worker only needs to cover the second bin cover to the box body again to complete the repair work. The battery device remains on the support body during the entire repair process. In this way, the repair process of the entire repair process can be simplified, and the repair efficiency can be improved. The second bin cover can directly flip to open the second containing bin relative to the box body, and the worker can move to the front of the battery device to repair or replace the electrical assembly. After the repair or replacement is completed, the worker directly flips the second bin cover to cover the second bin opening, and the entire repair process is convenient and efficient. When the second bin cover is flipped to open the second bin opening, the electrical assembly on the mounting plate is flipped out of the second containing bin together with the second bin cover. In this way, the worker can observe the electrical assembly horizontally without lifting his head after moving to the front of the battery device, reducing the neck fatigue of the worker caused by long-time head lifting during repair or replacement of the electrical assembly, and making the entire repair process of the worker on the electrical assembly more convenient and efficient.

[0007] In some embodiments, the first bin opening and the second bin opening are respectively arranged on the opposite sides of the box body along a first direction, and the first containing bin and the second containing bin are arranged side by side along a second direction in the box body, and the first direction and the second direction are perpendicular. The first containing bin is a complete space, which is conducive to concentrating the installation of the battery monomer assembly and improving the assembly efficiency of the battery monomer assembly.

[0008] In some embodiments, the battery box further comprises a partition arranged in the box body to separate the first containing bin and the second containing bin, and the cable electrically connecting the electrical assembly and the battery monomer assembly is arranged in the partition. The partition can completely isolate the battery monomer assembly in the first containing bin and the electrical assembly in the second containing bin from each other, reducing the possibility of mutual interference between the first containing bin and the second containing bin.

[0009] In some embodiments, the partition includes a crossbeam fixedly connected to the box body at both ends along the third direction. The crossbeam not only divides the internal space of the box body into the first accommodating compartment and the second accommodating compartment, but also enhances the structural strength of the box body. Alternatively, the partition includes a partition plate fixedly connected to the box body at both ends along the third direction. The battery monomer assembly in the first accommodating compartment and the electrical assembly in the second accommodating compartment can be completely isolated from each other by the partition plate, thereby reducing the possibility of mutual thermal interference between the first accommodating compartment and the second accommodating compartment.

[0010] In some embodiments, the battery device further includes a protection structure having a first connecting end and a second connecting end. The first connecting end is connected to the box body, and the second connecting end is connected to the second compartment cover. The protection structure is accommodated in the second accommodating compartment when the second compartment cover covers the second compartment opening. The protection structure can limit the second compartment cover to prevent the second compartment cover from suddenly falling from the box body and injuring the worker, thereby protecting the personal safety of the worker.

[0011] In some embodiments, the protection structure includes a damping telescopic rod, a first connecting part, and a second connecting part. The two ends of the damping telescopic rod are the first connecting end and the second connecting end, respectively. The first connecting part is arranged on the box body and located in the second accommodating compartment. The second connecting part is arranged on the second compartment cover. The first connecting end is rotatably connected to the first connecting part, and the second connecting end is rotatably connected to the second connecting part.

[0012] In some embodiments, the protection structure includes a connecting rod, a first connecting part, and a second connecting part. The two ends of the connecting rod are the first connecting end and the second connecting end, respectively. The first connecting part is arranged on the box body and located in the second accommodating compartment. The first connecting end is rotatably connected to the first connecting part. The second connecting part includes a sliding block and a sliding groove arranged on the second compartment cover. The sliding block is slidably arranged in the sliding groove, and the second connecting end is rotatably connected to the sliding block.

[0013] In some embodiments, the protection structure includes a safety rope. The two ends of the safety rope are the first connecting end and the second connecting end, respectively. The safety rope is accommodated in the second accommodating compartment when the second compartment cover covers the second compartment opening. When the second compartment cover opens the second compartment opening, the safety rope is in a straightened state under the gravity of the second compartment cover.

[0014] In some embodiments, the second compartment cover is locked on the second compartment opening of the second accommodating compartment by a plurality of bolts. The plurality of bolts are distributed in a circumferential direction on the circumferential edge of the second compartment cover.

[0015] According to a second aspect of the embodiments of the present application, a power utilization device is provided. The power utilization device includes a power utilization load; and the power utilization device further includes the battery device as described above. The power utilization load is electrically connected to the battery device. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative effort based on these drawings.

[0017] Figure 1 A perspective view of a battery device according to an embodiment of the present application Figure 1 ;

[0018] Figure 2 A perspective view of a battery device according to an embodiment of the present application Figure 2 ;

[0019] Figure 3 An exploded view of a battery device according to an embodiment of the present application Figure 1 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and no protection structure is provided between the box body and the second cover;

[0020] Figure 4 A perspective view of a battery device according to an embodiment of the present application Figure 3 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and no protection structure is provided between the box body and the second cover; Figure 2

[0021] Figure 5 A perspective view of another battery device according to an embodiment of the present application Figure 1 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and the damping telescopic rod is in a fully retracted state;

[0022] Figure 6 A perspective view of a battery device according to an embodiment of the present application Figure 5 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and no protection structure is provided between the box body and the second cover;

[0023] Figure 7 A perspective view of a battery device according to an embodiment of the present application Figure 5 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and no protection structure is provided between the box body and the second cover; Figure 2

[0024] A perspective view of another battery device according to an embodiment of the present application, wherein the electrical components are mounted on the box body, and the connecting rod and the second cover are in an open state; Figure 8

[0025] A perspective view of a battery device according to an embodiment of the present application Figure 9 , wherein the electrical components are mounted on the mounting plate surface of the second cover, and no protection structure is provided between the box body and the second cover; Figure 8

[0026] Figure 10 ​​A cross-sectional view of another battery device according to an embodiment of the present application Figure 1 wherein the electrical assembly is mounted to the box body, and the safety cable is in a half-open state with the second compartment cover;

[0027] Figure 11 A cross-sectional view of another battery device according to an embodiment of the present application Figure 10 A cross-sectional view of another battery device according to an embodiment of the present application Figure 2 wherein the electrical assembly is mounted to the box body, and the safety cable is in a half-open state with the second compartment cover;

[0028] Figure 12 A cross-sectional view of another battery device according to an embodiment of the present application

[0029] Figure 13 A cross-sectional view of another battery device according to an embodiment of the present application Figure 12 A cross-sectional view of another battery device according to an embodiment of the present application Figure 2 wherein the electrical assembly is mounted to the box body, and the safety cable is in a half-open state with the second compartment cover;

[0030] Figure 14 A structure view of an electrical equipment according to an embodiment of the present application.

[0031] wherein the reference numerals in the figures are as follows:

[0032] 100, a battery device;

[0033] 10, a battery box; 11, a box body; 111, a first containing compartment; 112, a first compartment opening; 113, a second containing compartment; 114, a second compartment opening; 12, a first compartment cover; 13, a second compartment cover; 131, a connecting edge; 132, a mounting plate surface; 14, a partition;

[0034] 20, a battery cell assembly; 21, a battery cell;

[0035] 30, an electrical assembly;

[0036] 40, a protection structure; 401, a first connecting end; 402, a second connecting end; 41, a damping telescopic rod; 42, a connecting rod; 43, a first connecting part; 44, a second connecting part; 441, a sliding block; 442, a sliding groove; 45, a safety cable;

[0037] 400, an electrical equipment; 410, an electrical load; 420, a control device; 430, a support body; 440, a wheel. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described below in detail with reference to examples shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0040] In addition, the terms "first", "second", and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0041] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0042] At present, from the development of market situation, the application of battery device is more and more extensive. The battery device is not only applied to energy storage power supply system of hydropower, thermal power, wind power and solar power station (such battery devices are generally referred to as energy storage batteries), but also widely used in electric bicycles, electric motorcycles, electric vehicles and other electric vehicles (such battery devices are generally referred to as power batteries).

[0043] In the current battery device, the battery compartment and the electrical compartment are sealed and protected by an upper cover, wherein the battery compartment is used to install battery monomer, heat insulation pad, sampling element and other battery monomer components, and the electrical compartment is used to install relay, fuse element, current sensor and other electrical components for controlling high and low voltage. The upper cover is fixedly connected to the box main body by bolt locking. The battery device is fixedly attached to the support body of the electrical equipment by mounting sleeve or quick change lock structure. In order to improve the assembly stability of the battery device on the support body of the electrical equipment, the upper cover of the battery device is arranged towards the support body.

[0044] In the battery device, compared with the battery monomer components, the fuses, fuse elements and other electrical components in the electrical components are prone to failure, so the after-sales repair frequency of the electrical components is relatively high. When the battery device is repaired after sale, the staff needs to first disassemble the battery device from the support body of the electrical equipment as a whole, and then disassemble the upper cover. At this time, the battery monomer components in the battery compartment and the electrical components in the electrical compartment are exposed at the same time, and the staff can repair or replace the electrical components in the electrical compartment. After the staff completes the repair or replacement work, the staff re-installs the upper cover to the box main body by bolt locking, and then re-fixes the battery device to the support body of the electrical equipment by mounting sleeve or quick change lock structure.

[0045] It can be seen that the current battery device requires complex disassembly procedures before the staff can repair or replace the electrical components during after-sales repair. Moreover, after completing the repair or replacement work, the staff needs to perform complex installation procedures again to reinstall the battery device to the support body of the electrical equipment. The repair process is complex and the work efficiency is low.

[0046] Based on the above considerations, embodiments of the present application provide a battery device, which separately houses and assembles the battery monomer components and the electrical components in the first containing compartment and the second containing compartment of the box main body, and the first compartment opening of the first containing compartment is covered by the first compartment cover, and the second compartment opening of the second containing compartment is covered by the second compartment cover, wherein the first compartment cover and the second compartment cover are respectively located on the opposite sides of the box main body. When repairing the battery device after sale, especially for repairing or replacing the electrical components of the battery device, the staff does not need to disassemble the battery device from the support body. The staff only needs to directly open the second compartment cover to expose the electrical components in the second containing compartment, so that the staff can perform repair or replacement work on the electrical components. After completing the repair or replacement work, the staff only needs to re-cover the second compartment cover to the box main body to complete the repair work. The battery device remains on the support body during the entire repair work process. This can simplify the repair process of the entire repair work process and improve the repair work efficiency.

[0047] In order to illustrate the technical solutions provided by the embodiments of the present application, the following will be described in detail in combination with specific drawings and embodiments.

[0048] As shown in Figures 1 to 5 , Figure 7 , Figure 8 , Figures 10 to 13 , in the space rectangular coordinate system XYZ shown, the positive and negative directions of the Z axis represent the first direction Z, the positive and negative directions of the X axis represent the second direction X, and the positive and negative directions of the Y axis represent the third direction Y.

[0049] According to a first aspect of the embodiments of the present application, the embodiments of the present application provide a battery device 100. As shown in Figures 1 to 13 , the battery device 100 includes a battery box 10, a battery cell assembly 20, and an electrical assembly 30. The battery box 10 includes a box body 11, a first compartment cover 12, and a second compartment cover 13. The box body 11 has a first containing compartment 111 and a second containing compartment 113. The first containing compartment 111 has a first compartment opening 112, and the second containing compartment 113 has a second compartment opening 114. The first compartment opening 112 and the second compartment opening 114 are respectively arranged on opposite sides of the box body 11 along the first direction Z. The first compartment cover 12 covers the first compartment opening 112, and the second compartment cover 13 covers the second compartment opening 114. The battery cell assembly 20 is arranged in the first containing compartment 111, and the electrical assembly 30 is accommodated in the second containing compartment 113. The electrical assembly 30 is electrically connected to the battery cell assembly 20. The first direction Z can be the height direction of the battery device 100.

[0050] In some embodiments, the battery box 10 is fixedly connected to a support body 430. The first compartment cover 12 is located on a side of the box body 11 along the first direction Z toward the support body 430, and the second compartment cover 13 is located on a side of the box body 11 along the first direction Z away from the support body 430. Alternatively, in other embodiments, when the battery box 10 is fixedly connected to the support body 430, the first compartment cover 12 is located on a side of the box body 11 along the first direction Z toward the support body 430, and the second compartment cover 13 is located on a side of the box body 11 along the second direction X or a side of the box body 11 along the third direction Y.

[0051] Hereinafter, both cases of “the first compartment cover 12 is located on a side of the box body 11 along the first direction Z toward the support body 430, and the second compartment cover 13 is located on a side of the box body 11 along the first direction Z away from the support body 430” will be described.

[0052] The battery device 100 provided by the embodiments of the present application houses the battery cell assembly 20 and the electrical assembly 30 in the first accommodating cavity 111 and the second accommodating cavity 113 of the box body 11, respectively, and the first cavity opening 112 of the first accommodating cavity 111 is covered by the first cavity cover 12, and the second cavity opening 114 of the second accommodating cavity 113 is covered by the second cavity cover 13, wherein the first cavity cover 12 and the second cavity cover 13 are respectively located on the two sides of the box body 11 along the first direction Z. When the battery device 100 is installed on the support body 430, the second cavity cover 13 is located on the side of the box body 11 away from the support body 430. When the battery device 100 is returned for repair, especially when the electrical assembly 30 of the battery device 100 is repaired or replaced, the worker does not need to disassemble the battery device 100 from the support body 430, and the worker only needs to directly open the second cavity cover 13, so that the electrical assembly 30 in the second accommodating cavity 113 is exposed, and the worker can repair or replace the electrical assembly 30. After the repair or replacement work is completed, the worker only needs to cover the second cavity cover 13 to the box body 11, and the repair work is completed. The battery device 100 remains on the support body 430 during the entire repair process. In this way, the repair process of the entire repair process can be simplified, and the repair work efficiency can be improved.

[0053] In the battery device 100 provided in the embodiments of this application, the battery cell assembly 20 includes a plurality of battery cells 21, which are arrayed and assembled in a first receiving compartment 111. The plurality of battery cells 21 are connected in series, parallel, or mixed. The plurality of battery cells 21 are used to store electrical energy or to provide electrical energy. The battery cells 21 can be secondary batteries, which are battery cells 21 that can be recharged after being discharged to activate the active materials and continue to be used. The battery cells 21 can be lithium-ion batteries, sodium-ion batteries, sodium-lithium-ion batteries, lithium metal batteries, sodium metal batteries, lithium-sulfur batteries, magnesium-ion batteries, nickel-metal hydride batteries, nickel-cadmium batteries, lead-acid batteries, etc., and the embodiments of this application are not limited to these. The battery cells 21 provided in the embodiments of this application are square battery cells, also called square cells. The square battery cell 21 has two large sidewalls with larger surface areas, two small sidewalls with smaller surface areas, a bottom wall, and a top wall. Two large sidewalls and two small sidewalls are alternately connected to form prismatic sidewalls. The bottom wall and top wall are located at the top and bottom ends of the prismatic sidewalls, respectively. Generally, the top wall is equipped with a pressure relief mechanism and terminal assembly, making it relatively easy to identify. The wall opposite the top wall is the bottom wall. The two large sidewalls and two small sidewalls can be directly distinguished by their surface area. Of course, the battery cell 21 can also be a cylindrical battery cell, also called a cylindrical cell. The battery device 100 assembled from square battery cells 21 or cylindrical battery cells 21 also has a square shape, also called a square battery.

[0054] The following description uses a prismatic cell assembly battery device 100 (i.e., a prismatic battery) as an example. The implementation scheme using cylindrical cells for assembly battery device 100 can be found in the implementation scheme using prismatic cells, and will not be repeated here.

[0055] like Figures 1 to 13 As shown, in some embodiments, the first receiving compartment 111 and the second receiving compartment 113 are arranged side by side on the main body 11 along the second direction X, and the first direction Z is perpendicular to the second direction X. The second direction X can be the length direction of the battery device 100. In this embodiment, the first receiving compartment 111 is a complete space, which facilitates the centralized installation of the battery cell assembly 20 and improves the assembly efficiency of the battery cell assembly 20.

[0056] In other embodiments, a portion of the first receiving compartment 111 and the second receiving compartment 113 are arranged along a second direction X, while another portion of the first receiving compartment 111 and the second receiving compartment 113 are arranged opposite each other along a first direction Z. In this embodiment, the first receiving compartment 111 is also a complete space, which is beneficial for the centralized installation of the battery cell assembly 20.

[0057] In some embodiments, the first accommodating bin 111 comprises a first sub-bin and a second sub-bin which are spaced apart, and the second accommodating bin 113 is arranged between the first sub-bin and the second sub-bin, i.e. the second accommodating bin 113 separates the first accommodating bin 111 into the first sub-bin and the second sub-bin. That is, the actual application scenario of the battery device 100 is actually set. For example, the battery device 100 is applied to an electric vehicle, the battery monomer assembly 20 assembled in the first sub-bin can be used to provide electric energy for driving the motor, and the battery monomer assembly assembled in the second sub-bin can be used to provide electric energy for the electrical equipment (such as the vehicle-mounted air conditioner, the in-vehicle atmosphere lamp, the vehicle-mounted sound equipment, etc.) of the electric vehicle.

[0058] In some embodiments, the second bin cover 13 can be locked on the second bin opening 114 of the second accommodating bin 113 by a plurality of bolts, i.e. the plurality of bolts are uniformly distributed in the circumferential edge of the second bin cover 13. In this embodiment, when the worker disassembles the second bin cover 13 to open the second accommodating bin 113, after the plurality of bolts are disassembled, the second bin cover 13 is completely separated from the second bin opening 114. Among them, as shown in Figures 8 to 13 , the electrical assembly 30 is installed in the box body 11 and located in the second accommodating bin 113, the worker can observe the electrical assembly 30 after moving to the front of the battery device 100 and looking up, and then performs maintenance work or replacement work, so that the whole repair work process is convenient and efficient.

[0059] As shown in Figures 3 to 5 , Figure 7 , Figures 9 to 12As shown, in some embodiments, the second compartment cover 13 has a connecting edge 131, which is rotatably connected to the box body 11, allowing the second compartment cover 13 to flip relative to the box body 11. The second compartment cover 13 can be locked onto the second compartment opening 114 of the second receiving compartment 113 by multiple bolts, i.e., the multiple bolts are evenly distributed circumferentially on the remaining edges of the second compartment cover 13; or, the remaining edges of the second compartment cover 13 are provided with at least one first latch, and the corresponding box body 11 is provided with a second latch corresponding to the first latch. When the second compartment cover 13 closes the second compartment opening 114, the first latch and the second latch engage with each other, thereby allowing the second compartment cover 13 to be quickly removed from or closed on the second compartment opening 114. In this embodiment, after removing the multiple bolts or unlocking and separating the first latch and the second latch, the second compartment cover 13 will not detach from the box body 11. The second compartment cover 13 flips around the rotation axis of the rotational connection position between the connecting edge 131 and the box body 11, thereby opening the second receiving compartment 113. In this way, the staff can move directly under the battery device 100 to perform maintenance or replacement work on the electrical components 30. After the maintenance or replacement work is completed, the staff can directly flip the second compartment cover 13 to close the second compartment opening 114, and then tighten multiple bolts or fasten the first and second clips to complete the repair work. The entire repair work process is convenient and efficient.

[0060] Based on the rotatable connection between the connecting edge 131 of the second compartment cover 13 and the main body 11, in some embodiments, the electrical component 30 may be installed in the main body 11 and located inside the second receiving compartment 113. After the second compartment cover 13 is flipped open to open the second compartment opening 114, the operator can move directly under the battery device 100 and look up to observe the electrical component 30, and then perform maintenance or replacement work, making the entire repair process convenient and efficient.

[0061] like Figures 3 to 7 As shown, in some embodiments, based on the rotatable connection between the connecting edge 131 of the second compartment cover 13 and the main body 11, the second compartment cover 13 has a mounting plate 132 on the side facing the second receiving compartment 113. The electrical component 30 is mounted on the mounting plate 132, and the electrical component 30 is housed in the second receiving compartment 113 when the second compartment cover 13 closes the second compartment opening 114. That is, when the second compartment cover 13 is flipped open to open the second compartment opening 114, the electrical component 30 on the mounting plate 132 flips out of the second receiving compartment 113 along with the second compartment cover 13. In this way, after the operator moves directly under the battery device 100, they can observe the electrical component 30 at eye level without looking up, reducing neck fatigue caused by prolonged head-up maintenance or replacement of the electrical component 30. In other words, the operator remains in a normal standing position throughout the entire repair process, making the entire repair process of the electrical component 30 more convenient and efficient.

[0062] As Figure 3 , Figure 6 , Figure 7 , Figures 9 to 11 , Figure 13 illustrated, in some embodiments, the battery box 10 further comprises a partition 14 arranged in the box body 11 to separate the first accommodating compartment 111 and the second accommodating compartment 113, the partition 14 extends along a third direction Y, and the first direction Z, the second direction X and the third direction Y are perpendicular to each other. The third direction Y can be the width direction of the battery device 100.

[0063] The partition 14 can completely separate the first accommodating compartment 111 and the second accommodating compartment 113, that is, the first accommodating compartment 111 and the second accommodating compartment 113 are separated by the partition 14 to form two completely independent compartment spaces, at this time, the first accommodating compartment 111 and the second accommodating compartment 113 can only be connected through the passage formed on the partition 14; or, the partition 14 can only be a separation boundary between the first accommodating compartment 111 and the second accommodating compartment 113, that is, the partition 14 does not completely separate the first accommodating compartment 111 and the second accommodating compartment 113, and the first accommodating compartment 111 and the second accommodating compartment 113 are always connected to each other.

[0064] The present embodiment takes the example of the partition 14 completely separating the first accommodating compartment 111 and the second accommodating compartment 113, the cable electrically connecting the electrical component 30 and the battery monomer assembly 20 is arranged through the partition 14, and the passage formed on the partition 14 needs to be sealed after the cable is arranged through, that is, the battery monomer assembly 20 in the first accommodating compartment 111 and the electrical component 30 in the second accommodating compartment 113 are completely sealed and isolated from each other, reducing the possibility of mutual interference between the first accommodating compartment 111 and the second accommodating compartment 113, for example, reducing the possibility of mutual thermal interference between the first accommodating compartment 111 and the second accommodating compartment 113.

[0065] In some embodiments, the partition 14 comprises a crossbeam, and the two ends of the crossbeam along the third direction Y are fixedly connected to the box body 11. On the one hand, the crossbeam separates the internal space of the box body 11 to form the first accommodating compartment 111 and the second accommodating compartment 113; on the other hand, the crossbeam can enhance the structural strength of the box body 11, so that the whole battery device 100 is more stable.

[0066] In some embodiments, the partition 14 comprises a partition plate fixedly connected to the box body 11 at both ends along the third direction Y, and the partition plate separates the internal space of the box body 11 to form the first accommodating compartment 111 and the second accommodating compartment 113. When the partition plate completely separates the first accommodating compartment 111 and the second accommodating compartment 113, the partition plate is preferably made of a material with a small thermal conductivity, so that the battery monomer assembly 20 in the first accommodating compartment 111 and the electrical assembly 30 in the second accommodating compartment 113 are completely sealed and isolated from each other through the partition plate, thereby reducing the possibility of mutual thermal interference between the first accommodating compartment 111 and the second accommodating compartment 113.

[0067] In some embodiments, the partition 14 comprises a partition plate fixedly connected to the box body 11 at both ends along the third direction Y, and the partition plate separates the internal space of the box body 11 to form the first accommodating compartment 111 and the second accommodating compartment 113. When the partition plate completely separates the first accommodating compartment 111 and the second accommodating compartment 113, the partition plate is preferably made of a material with a small thermal conductivity, so that the battery monomer assembly 20 in the first accommodating compartment 111 and the electrical assembly 30 in the second accommodating compartment 113 are completely sealed and isolated from each other through the partition plate, thereby reducing the possibility of mutual thermal interference between the first accommodating compartment 111 and the second accommodating compartment 113.

[0068] As shown in Figures 5 to 11 In some embodiments, the battery device 100 further comprises a protection structure 40 for limiting the second compartment cover 13 to prevent the second compartment cover 13 from suddenly falling and injuring the worker, thereby protecting the personal safety of the worker. The protection structure 40 has a first connecting end 401 connected to the box body 11 and a second connecting end 402 connected to the second compartment cover 13, and the protection structure 40 is accommodated in the second accommodating compartment 113 when the second compartment cover 13 covers the second compartment opening 114. Therefore, after the plurality of bolts on the second compartment cover 13 are disassembled or the first buckle and the second buckle are separated, the protection structure 40 can limit the second compartment cover 13 due to the protection structure 40 arranged between the box body 11 and the second compartment cover 13, thereby preventing the second compartment cover 13 from suddenly falling from the box body 11 and injuring the worker, and facilitating the protection of the personal safety of the worker.

[0069] In some embodiments, on the basis of the rotatable connection between the connecting edge 131 of the second compartment cover 13 and the box body 11, as shown in Figures 5 to 7As shown, the protection structure 40 comprises a damping telescopic rod 41, a first connecting part 43 and a second connecting part 44. The damping telescopic rod 41 is a mechanical component achieving the dual functions of “telescopic + resistance” through an internal damping structure, and two ends of the damping telescopic rod 41 are respectively a first connecting end 401 and a second connecting end 402. The first connecting part 43 is arranged on the box body 11 and located in the second containing bin 113, and the second connecting part 44 is arranged on the second bin cover 13. The first connecting end 401 is rotatably connected with the first connecting part 43, and the second connecting end 402 is rotatably connected with the second connecting part 44. After the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, under the limitation of the internal damping force of the damping telescopic rod 41, when the internal damping force of the damping telescopic rod 41 is small, the second bin cover 13 can be automatically flipped slowly around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11 under the action of its own gravity, that is, the internal damping force of the damping telescopic rod 41 is slightly smaller than the gravity of the second bin cover 13, so as to open the second containing bin 113. Or, after the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, under the limitation of the internal damping force of the damping telescopic rod 41, when the internal damping force of the damping telescopic rod 41 is large, that is, the internal damping force of the damping telescopic rod 41 is greater than the gravity of the second bin cover 13, at this time the second bin cover 13 cannot be automatically flipped, the worker exerts a pulling force on the second bin cover 13 to overcome the internal damping force of the damping telescopic rod 41, then the second bin cover 13 is flipped around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11, so as to open the second containing bin 113. The worker can move to the position directly below the battery device 100 to perform maintenance work or replacement work on the electrical assembly 30, and since the damping telescopic rod 41 limits the second bin cover 13, when the worker operates the electrical assembly 30 installed on the mounting plate surface 132, the second bin cover 13 can always remain stable, thereby facilitating the worker to operate to efficiently complete the maintenance work or replacement work. After the maintenance work or replacement work is completed, the worker flips the second bin cover 13 to cover the second bin opening 114, and then locks the plurality of bolts or buckles the first buckle and the second buckle, so as to complete the repair work. The whole repair work process is convenient and efficient.

[0070] When the internal damping force of the damping telescopic rod 41 is slightly smaller than the gravity of the second bin cover 13, the second bin cover 13 flipped open relative to the box body 11 will eventually be in a vertical state under the action of its own gravity, that is, the rotation angle β of the second bin cover 13 flipped relative to the box body 11 is 90°, that is, β = 90°, as shown. Figure 7 At this time, the damping telescopic rod 41 is inclined relative to the first direction Z, and the damping telescopic rod 41 is in a fully straightened state.

[0071] When the internal damping force of the damping telescopic rod 41 is greater than the self-gravity of the second bin cover 13, the rotation angle β of the second bin cover 13 relative to the box body 11 can be between 0°-180°, the internal damping force of the damping telescopic rod 41 can offset the self-gravity of the second bin cover 13, so that the second bin cover 13 is flipped open and kept stable at a position at any angle between 0°-180°. The rotation angle β of the second bin cover 13 relative to the box body 11 is actually less than 180°, that is, 0°≤β<180°, wherein the rotation angle β of the second bin cover 13 relative to the box body 11 is preferably 60°-100°, that is, 60°≤β≤100°, and the optimal rotation angle β is 90°, that is, β=90°.

[0072] In some embodiments, on the basis of the rotatable connection of the connecting edge 131 of the second bin cover 13 and the box body 11, Figure 8 and Figure 9As shown, the protection structure 40 comprises a connecting rod 42, a first connecting part 43 and a second connecting part 44. The connecting rod 42 is a straight rod, and two ends of the connecting rod 42 are respectively a first connecting end 401 and a second connecting end 402. The first connecting part 43 is arranged on the box body 11 and located in the second accommodating cavity 113. The first connecting end 401 is rotatably connected with the first connecting part 43. The second connecting part 44 comprises a sliding block 441 and a sliding groove 442 arranged on the second cavity cover 13. The sliding block 441 is slidably arranged in the sliding groove 442. The second connecting end 402 is rotatably connected with the sliding block 441. The sliding block 441 and the sliding groove 442 can be assembled in a non-damping force mode. Alternatively, a damping accessory can be arranged between the sliding block 441 and the sliding groove 442, so that the damping accessory generates a damping force on the sliding block 441 when the sliding block 441 slides in the sliding groove 442. When the sliding block 441 and the sliding groove 442 are assembled in a non-damping force mode, after the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, the second cavity cover 13 can automatically overturn around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11 under the action of its own gravity until the sliding block 441 slides from one end of the sliding groove 442 to the other end to be blocked and stop overturning, thereby opening the second accommodating cavity 113. Alternatively, when the sliding block 441 and the sliding groove 442 are arranged with a damping accessory, after the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, when the damping force generated by the damping accessory on the sliding block 441 is small, the second cavity cover 13 can slowly automatically overturn around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11 under the action of its own gravity, that is, the damping force generated by the damping accessory on the sliding block 441 is slightly smaller than the gravity of the second cavity cover 13, thereby opening the second accommodating cavity 113. Alternatively, after the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, when the damping force generated by the damping accessory on the sliding block 441 is greater than the gravity of the second cavity cover 13, the second cavity cover 13 cannot automatically overturn at this time. A worker exerts a pulling force on the second cavity cover 13 to overcome the damping force generated by the damping accessory on the sliding block 441, so that the second cavity cover 13 overturns around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11, thereby opening the second accommodating cavity 113. The worker can move to the position directly below the battery device 100 to perform maintenance work or replacement work on the electrical assembly 30. Since the connecting rod 42 limits the second cavity cover 13, the second cavity cover 13 can always remain stable when the worker operates the electrical assembly 30 mounted on the mounting plate surface 132, thereby facilitating the worker to operate to efficiently complete the maintenance work or replacement work. After the maintenance work or replacement work is completed, the worker overturns the second cavity cover 13 to cover the second cavity opening 114, and then locks the plurality of bolts or buckles the first buckle and the second buckle, thereby completing the repair work. The entire repair work process is convenient and efficient.

[0073] When the damping assembly generates a damping force on the slider 441 slightly less than the self-gravity of the second lid 13, the second lid 13 opened by being flipped relative to the box body 11 will eventually be in a vertical state under the action of its own gravity, that is, the rotation angle β of the second lid 13 flipped relative to the box body 11 is 90°, that is, β = 90°, as shown in Figure 8 At this time, the connecting rod 42 is inclined relative to the first direction Z.

[0074] When the damping assembly generates a damping force on the slider 441 greater than the self-gravity of the second lid 13, the rotation angle β of the second lid 13 flipped relative to the box body 11 can be between 0°-90°, that is, 0°≤β≤90°, and the damping force generated by the damping assembly on the slider 441 can offset the self-gravity of the second lid 13, so that the second lid 13 is flipped open and kept stable at a position at any angle between 0°-90°. Among them, the rotation angle β of the second lid 13 flipped relative to the box body 11 is preferably 90°, that is, β = 90°.

[0075] In some embodiments, as Figure 10 and Figure 11As shown, the protection structure 40 includes a safety cable 45, which can be a steel wire rope, an iron chain, or other flexible and strong cable, without limitation. The two ends of the safety cable 45 are respectively a first connecting end 401 and a second connecting end 402. The safety cable 45 is accommodated in the second accommodating cavity 113 when the second cover 13 covers the second cavity opening 114, and under the gravity of the second cover 13, the safety cable 45 is in a straightened state when the second cover 13 opens the second cavity opening 114. After the plurality of bolts are disassembled or the first buckle and the second buckle are unlocked and separated, the second cover 13 can automatically flip around the rotation axis of the rotation connection position of the connecting edge 131 and the box body 11 under the gravity of the second cover 13, until the safety cable 45 is in a straightened state and stops flipping, thereby opening the second accommodating cavity 113. The worker moves to the front of the battery device 100 to perform maintenance or replacement work on the electrical assembly 30, and since the safety cable 45 limits the second cover 13, the second cover 13 can always remain stable when the worker operates the electrical assembly 30 installed on the mounting plate surface 132, thereby facilitating the worker to operate to efficiently complete the maintenance or replacement work. After the maintenance or replacement work is completed, the worker flips the second cover 13 to cover the second cavity opening 114, and then locks the plurality of bolts or buckles the first buckle and the second buckle, thereby completing the repair work. The entire repair work process is convenient and efficient. In this embodiment, the rotation angle β of the second cover 13 relative to the box body 11 can be between 0°-90°, i.e., 0°≤β≤90°. The straightened safety cable 45 can pull the second cover 13, so that the second cover 13 is flipped open and remains stable at a position between 0°-90°. Preferably, the rotation angle β of the second cover 13 relative to the box body 11 is 90°, i.e., β=90°, as shown in Figure 11

[0076] Of course, in some embodiments, as shown in Figure 12 and Figure 13 , the protection structure 40 can not be provided between the second cover 13 and the box body 11.

[0077] In the battery device 100 provided by the embodiments of the present application, the battery device 100 can include a thermal management module, a master control module, a total control module, a power distribution module, a high-voltage box, and a fire-fighting module, etc. Among them, the master control module, the total control module, the power distribution module, the high-voltage box, etc. are assembled in the second accommodating cavity 113 to constitute the electrical assembly 30, and at least one of the master control module, the total control module, the power distribution module, the high-voltage box, etc. is provided with a fuse, a safety element, etc. electrical elements.

[0078] ​As an example, the thermal management module may include a liquid cooling unit that supplies coolant to each battery cell 21 or each battery device 100 via pipelines for regulating the temperature of the battery cell 21.

[0079] As an example, the main control module can serve as a battery management unit for multiple battery cells 21 or multiple battery devices 100, used to monitor and manage the multiple battery cells 21. The main control module can monitor information such as current, voltage, power, or temperature of the multiple battery cells 21. For example, it can control the charging and discharging current and voltage of the multiple battery cells 21. The main control module includes modules such as an auxiliary battery management unit (SBMU) and a fusion switch.

[0080] As an example, the central control module can serve as the battery management unit of the battery device 100, used to monitor and manage the battery device 100. The central control module can monitor information such as the current, voltage, power, state of charge, or temperature of the battery device 100. For example, it can control the charging and discharging current and voltage of the battery device 100. As an example, the central control module includes modules such as an insulation monitoring module (IMM), a master battery management unit (MBMU), an Ethernet (ETH) module, and a fiber optic conversion module.

[0081] As an example, the fire protection module includes a control panel, detectors, alarm devices, etc., for detecting, alarming, or extinguishing the battery device 100.

[0082] As an example, the power distribution module can be used to distribute power to modules in the battery device 100 that require power.

[0083] According to a second aspect of the embodiments of this application, an electrical appliance 400 is provided, such as... Figure 14 As shown. The electrical device 400 includes at least one battery device 100 as described above; that is, the electrical device 400 uses one battery device 100 or multiple battery devices 100 connected in series, parallel, or a combination thereof. The electrical device 400 also includes an electrical load 410, which is electrically connected to the battery device 100. The battery device 100 is used to store electrical energy, or to provide electrical energy to the electrical load 410, thereby enabling the electrical load 410 to operate normally.

[0084] The electric device 400 includes, but is not limited to, an electric toy, an electric tool, an electric vehicle, an electric automobile, a ship, a spacecraft, etc. The electric toy can include, but is not limited to, a stationary or mobile electric toy, such as a game machine, an electric automobile toy, an electric ship toy, an electric aircraft toy, etc. The spacecraft can include, but is not limited to, an airplane, a rocket, a space shuttle, a spacecraft, etc.

[0085] In the embodiments of the present application, the electric device 400 is an electric automobile, and the battery device 100 is assembled in the electric automobile as shown in Figure 14 The battery device 100 is mounted on a support body 430 of the electric automobile. The electric automobile includes a frame (the frame is the support body 430 as mentioned above), a driving motor, and wheels 440, the battery device 100 and the driving motor are fixedly mounted on the frame, the wheels 440 are rotatably connected to the frame, and the battery device 100 is electrically connected to the driving motor, and the driving motor is drivingly connected to the wheels 440. The driving motor is one of the electric loads 410 of the electric device 400, and is powered by the battery device 100 provided in the present application, so that the driving motor drives the wheels 440 to rotate, and the electric automobile can run normally. In addition, the electric automobile includes a control device 420 mounted on the frame, the control device 420 is electrically connected to the battery device 100, and the control device 420 is used to control and monitor the charging and discharging working state of the battery device 100. In some electric automobiles, the battery box 10 of the battery device 100 can be used as a part of the chassis structure of the electric automobile. For example, a part of the battery box 10 can be used as at least a part of the floor of the electric automobile, or a part of the battery box 10 can be used as at least a part of the cross beam and the longitudinal beam of the electric automobile.

[0086] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A battery device, characterized by, The battery device comprises: a battery box body comprising a box main body, a first compartment cover and a second compartment cover, the box main body having a first accommodating compartment and a second accommodating compartment, the first accommodating compartment having a first compartment opening, the second accommodating compartment having a second compartment opening, the first compartment opening and the second compartment opening being respectively arranged on opposite sides of the box main body, the first compartment cover covering the first compartment opening, and the second compartment cover covering the second compartment opening; a battery cell assembly arranged in the first accommodating compartment; an electrical assembly accommodated in the second accommodating compartment, the electrical assembly being electrically connected to the battery cell assembly; the second compartment cover having a connecting edge rotatably connected to the box main body, so that the second compartment cover can be flipped relative to the box main body; a mounting plate surface on a side of the second compartment cover facing the second accommodating compartment, the electrical assembly being mounted on the mounting plate surface, and the electrical assembly being accommodated in the second accommodating compartment when the second compartment cover covers the second compartment opening.

2. The battery device according to claim 1, wherein: the first compartment opening and the second compartment opening are respectively arranged on opposite sides of the box main body along a first direction, and the first accommodating compartment and the second accommodating compartment are distributed along a second direction, the first direction being perpendicular to the second direction.

3. The battery device according to claim 1, wherein: the battery box body further comprises a partition arranged in the box main body to separate the first accommodating compartment and the second accommodating compartment, and a cable electrically connecting the electrical assembly and the battery cell assembly is arranged through the partition.

4. The battery device according to claim 3, wherein: the partition comprises a crossbeam, two ends of the crossbeam being fixedly connected to the box main body along a third direction; and / or the partition comprises a partition plate, two ends of the partition plate being fixedly connected to the box main body along the third direction.

5. The battery device according to claim 1, wherein: the battery device further comprises a protection structure having a first connecting end and a second connecting end, the first connecting end being connected to the box main body, and the second connecting end being connected to the second compartment cover, the protection structure being accommodated in the second accommodating compartment when the second compartment cover covers the second compartment opening.

6. The battery device according to claim 5, wherein: the protection structure comprises a damping telescopic rod, a first connecting part and a second connecting part, two ends of the damping telescopic rod being respectively the first connecting end and the second connecting end, the first connecting part being arranged on the box main body and located in the second accommodating compartment, the second connecting part being arranged on the second compartment cover, the first connecting end being rotatably connected to the first connecting part, and the second connecting end being rotatably connected to the second connecting part.

7. The battery device according to claim 5, wherein: ​ The protection structure comprises a connecting rod, a first connecting part and a second connecting part, two ends of the connecting rod are the first connecting end and the second connecting end respectively, the first connecting part is arranged on the box body and located in the second accommodating cavity, the first connecting end is rotatably connected with the first connecting part, the second connecting part comprises a sliding block and a sliding groove arranged on the second cavity cover, the sliding block is slidably arranged in the sliding groove, and the second connecting end is rotatably connected with the sliding block.

8. The battery device of claim 5, wherein, The protection structure comprises a safety rope, two ends of the safety rope are the first connecting end and the second connecting end respectively, the safety rope is accommodated in the second accommodating cavity when the second cavity cover covers the second cavity opening, and when the second cavity cover opens the second cavity opening, the safety rope is in a straightened state under the action of gravity of the second cavity cover.

9. The battery device of claim 1, wherein, The second cavity cover is locked on the second cavity opening of the second accommodating cavity by a plurality of bolts, and the plurality of bolts are distributed in a circumferential direction on a circumferential edge of the second cavity cover.

10. An electric device, comprising the battery device of any one of claims 1-9. ​

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