Battery device and electric equipment

Abstract

The utility model discloses a battery device and electric equipment, and relates to the technical field of batteries, the battery device comprises a box body, a battery monomer, a mounting box and a fuse, the box body is provided with an accommodating cavity; the battery monomers are arranged in the accommodating cavities; the installation box is installed on the box body, at least part of the installation box is located on the outer side of the box body, the installation box is provided with an installation cavity and a through hole, and the through hole communicates with the installation cavity and the containing cavity; and the fuse is arranged in the mounting cavity. The installation box is arranged on the box body, at least part of the installation box is located on the outer side of the box body, and the fuse is arranged in the installation box, so that the fuse can be taken out from the part, located outside the box body, of the installation box to be maintained or replaced, the box body does not need to be opened, and the maintenance difficulty of the fuse is greatly reduced.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a battery device and an electrical device using the same. Background Art

[0002] The battery device includes a box body and a fuse. The box body is provided with a receiving cavity, and battery cells are arranged in the receiving cavity. When the fuse needs to be replaced or repaired, the box body needs to be opened, and the repair process consumes a lot of manpower and material resources. Summary of the Utility Model

[0003] The main object of this application is to propose a battery device and an electrical device using the same, aiming to at least improve the technical problem of the difficulty in repairing the fuse of the battery device.

[0004] According to some embodiments of this application, a battery device is provided, which includes a box body, battery cells, an installation box and a fuse. The box body is provided with a receiving cavity; the battery cells are arranged in the receiving cavity; the installation box is installed on the box body and at least partially located outside the box body. The installation box is provided with an installation cavity and a through hole, and the through hole communicates the installation cavity and the receiving cavity; the fuse is arranged in the installation cavity.

[0005] By providing an installation box on the box body, with at least part of the installation box located outside the box body, and arranging the fuse in the installation box, the fuse can be taken out from the part of the installation box located outside the box body for repair or replacement, without opening the box body, which greatly reduces the difficulty of maintaining the fuse. In addition, the through hole is provided to keep the installation cavity and the receiving cavity in a communicating state all the time, which can achieve air pressure balance, and the production method of the through hole is simple, and no additional control operation is required during use.

[0006] In some embodiments, the box body is further provided with an installation hole communicating with the receiving cavity. The installation box includes a box body and a cover body. The box body is installed in the installation hole, the box body is provided with the installation cavity, the cover body covers the opening of the installation cavity, and the cover body is arranged outside the box body.

[0007] By providing an installation hole on the box body 10, the installation box 3 can be partially arranged in the receiving cavity through the installation hole, which can reduce the volume of the battery device. And by setting the installation box to include a box body and a cover body that can be opened and closed and installed on the box body, the cover body can open the opening of the box body to repair or replace the fuse in the installation cavity, and at the same time, the cover body is arranged outside the box body, so that it is convenient to open the cover body from outside the box body to achieve the repair or replacement of the fuse without opening the box, reducing the repair difficulty.

[0008] In some embodiments, an installation position and a signal interface are provided inside the box body. The fuse includes an electrical connector and a connecting member. The electrical connector is electrically connected to the signal interface, and the connecting member is detachably connected to the installation position.

[0009] By providing an installation position inside the box body and detachably connecting the connecting member of the fuse, the installation and disassembly of the fuse are facilitated; by providing a signal interface inside the box body and electrically connecting it to the electrical connecting member of the fuse, signal transmission can be achieved, enabling the normal realization of the functions of the fuse.

[0010] In some embodiments, the installation position is provided with threaded holes. The connecting member includes a connecting plate and a threaded member. The threaded member passes through the connecting plate and is installed in the threaded holes to install the fuse on the installation position.

[0011] By providing threaded holes inside the installation position and installing the fuse in the installation box through threaded members, both the firmness of installation can be improved and the disassembly and installation can be facilitated.

[0012] In some embodiments, the installation position includes a buckle, and the connecting member includes a bayonet; alternatively, the installation position includes a bayonet, and the connecting member includes a buckle; the installation position and the connecting member are snap-connected through the buckle and the bayonet.

[0013] Through the snap-fit of the bayonet and the buckle, the detachable connection of the fuse inside the installation box can be achieved, and the installation is very convenient.

[0014] In some embodiments, the box body is detachably connected to the box.

[0015] By providing the detachable connection between the box body and the box, the entire box body can be taken out from the box, making it more convenient to take out the fuse and further reducing the maintenance difficulty.

[0016] In some embodiments, at least a part of the box body extends into the accommodation cavity.

[0017] By disposing at least a part of the box body in the accommodation cavity, it is convenient for the installation cavity of the box body to communicate with the accommodation cavity through the through hole, reducing the explosion risk. At the same time, when a part of the box body extends into the accommodation cavity, the volume of the battery device can be reduced.

[0018] In some embodiments, the through hole penetrates through the bottom of the installation cavity, and there is a gap between the through hole and the fuse.

[0019] By providing the through hole at the bottom of the cavity, the requirement for the box body to extend into the installation cavity is smaller, and the installation adjustment space is larger; at the same time, by providing a gap between the through hole and the fuse, the air flow between the installation cavity and the accommodation cavity can be ensured, enabling the air pressure balance between the two.

[0020] In some embodiments, the box body includes an inner shell and an outer shell, the inner shell includes a base and a side enclosure arranged on the base, the outer shell is sleeved on the side enclosure and connected to the base, the inner shell is provided with the installation cavity, and the cover body is covered on a side of the outer shell away from the base.

[0021] By arranging the box body to include an inner shell and an outer shell, the fuse can be installed through the installation cavity of the inner shell, and the cover body can be connected through the outer shell. Arranging a double-layer shell can also play a waterproof role.

[0022] In some embodiments, the base is provided with a first connection hole, the shell is provided with a second connection hole, and the cover is provided with a third connection hole, and the first connection hole, the second connection hole, and the third connection hole are the same in number and are provided in one-to-one correspondence;

[0023] The battery device further includes a threaded fastener, which passes through the third connection hole, the second connection hole, and the first connection hole in sequence to connect the cover body, the inner shell, and the outer shell.

[0024] By setting corresponding holes on the base, outer shell and cover body, a detachable connection between the three is achieved through threaded fasteners, which not only facilitates the installation and removal of the cover body, but also enables the outer shell and inner shell to be detachably connected, making it easy to repair or replace the fuse in the inner shell.

[0025] In some embodiments, a hinge shaft is provided on the housing, and the cover body is rotatably connected to the hinge shaft so that the cover body can be rotated to open or close the installation cavity.

[0026] By arranging a hinge shaft on the box body, the cover body can open or close the installation cavity by rotating, so that the fuse in the installation cavity can be easily repaired or replaced, and it is convenient to open or close the cover body.

[0027] In some embodiments, a first sealing ring is provided on the abutting surface between the cover and the outer shell; and / or a second sealing ring is provided on the abutting surface between the base and the outer shell; and / or a sealing rubber layer is provided at the connection between the outer shell and the box body.

[0028] By arranging a first sealing ring on the abutting surface between the cover and the shell, arranging a second sealing ring on the abutting surface between the base and the shell, and arranging a sealing rubber layer at the connection between the shell and the box body, both can play a role of waterproofing and dustproofing.

[0029] In some embodiments, a connecting portion is provided on a side of the base facing away from the side wall, and a connecting position to the connecting portion is provided in the box body.

[0030] By providing a connecting portion that extends into the accommodating cavity and connects to the connection position inside the box body, the fixed installation of the installation box can be achieved, reducing the risk of the installation box falling off.

[0031] The above description is only an overview of the technical solution of this application. In order to understand the technical means of this application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features, and advantages of this application more obvious and understandable, the specific embodiments of this application are specifically described below. Brief Description of the Drawings

[0032] In order to more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0033] Figure 1 Structural schematic diagram of a vehicle for some embodiments of this application;

[0034] Figure 2 Exploded structural schematic diagram of a battery for some embodiments of this application;

[0035] Figure 3 Stereoscopic structural schematic diagram of a battery device for some embodiments of this application;

[0036] Figure 4 For Figure 3 Enlarged structural schematic diagram at A;

[0037] Figure 5 Exploded structural schematic diagram of the fuse and the installation box of a battery device for some embodiments of this application;

[0038] Figure 6 Stereoscopic structural schematic diagram of an inner shell of a battery device for some embodiments of this application;

[0039] Figure 7 Cross-sectional structural schematic diagram of the installation box and the fuse of a battery device for some embodiments of this application;

[0040] Figure 8 Another stereoscopic structural schematic diagram of an inner shell of a battery device for some embodiments of this application;

[0041] Figure 9 Stereoscopic structural schematic diagram of a cover body of a battery device for some embodiments of this application.

[0042] Explanation of the reference numerals in the drawings:

[0043] 1000, vehicle;

[0044] 100, Battery device; 200, Controller; 300, Motor;

[0045] 10, Box body; 11, Upper cover; 12, Box main body;

[0046] 20, Battery cell;

[0047] 3, Installation box; 31, Box body; 311, Inner shell; 3111, Installation position; 31111, Threaded hole; 3112, Signal interface; 3113, Chamber bottom; 3114, Base; 31141, First connection hole; 31142, Connection part; 3115, Side wall; 312, Outer shell; 3121, Second connection hole; 32, Cover body; 321, Third connection hole; 33, Installation cavity; 34, Through hole; 35, Opening; 4, Fuse; 41, Electrical connector; 42, Connecting piece; 421, Connection plate; 422, Threaded piece; 6, First sealing ring; 7, Second sealing ring.

[0048] The realization, functional features and advantages of the purpose of this application will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0049] Next, the technical solutions in this embodiment will be clearly and completely described in conjunction with the accompanying drawings in this embodiment. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of this application.

[0050] It should be noted that all directional indications (such as up, down, left, right, front, back...) in this embodiment are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0051] In addition, the descriptions such as "first" and "second" in this application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0052] In this application, unless otherwise clearly defined and limited, terms such as "connection" and "fixation" shall be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0053] In addition, the technical solutions between various embodiments of this application can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.

[0054] In this application, the descriptions of directions such as "up", "down", "front", "back", "left", and "right" are based on the directions shown in the drawings, and are only used to explain the relative position relationship between components in the posture shown in the drawings. If this specific posture changes, then this directional indication will also change accordingly.

[0055] Currently, from the perspective of the development of the market situation, the application of power batteries is becoming more and more extensive. Power batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric vehicles, as well as in multiple fields such as military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand for them is also constantly increasing.

[0056] The battery device includes a box body and a fuse. The box body is formed with a receiving cavity, and battery cells are arranged in the receiving cavity. During the manufacture or use of the battery device, there is a situation where the fuse is damaged and needs to be repaired or replaced. The applicant has carefully studied and found that the fuse is generally arranged in the box body or in a high-voltage box, and the high-voltage box is also arranged in the box body. Therefore, to repair or replace the fuse, the box body needs to be opened. The box body includes a box body main body and an upper cover covering the box body main body. The upper cover is generally locked to the box body main body through a plurality of bolts, and the structures of the components in the box body are complex and difficult to identify, resulting in time-consuming and laborious repair of the fuse. In the related art, a relatively large operating space is set for the installation position of the fuse to facilitate the replacement of the fuse, hoping to reduce the repair difficulty, but inevitably, the operation of opening the box body needs to be carried out, which has little help in reducing the repair difficulty.

[0057] To this end, the applicant provides a battery device, including a box body, battery cells, a mounting box, and a fuse. The box body is provided with a receiving cavity and a mounting hole communicating with the receiving cavity; the battery cells are arranged in the receiving cavity; the mounting box is mounted in the mounting hole, the mounting box is provided with a mounting cavity and a through hole communicating the mounting cavity and the receiving cavity; the fuse is arranged in the mounting cavity. In the present application, the fuse can be taken out from the mounting box for replacement or repair, without opening the box body, reducing the maintenance difficulty.

[0058] Please refer to Figure 1 , Figure 1 which is a schematic structural diagram of a vehicle 1000 provided in some embodiments of the present application. The electrical device can be the vehicle 1000, and the vehicle 1000 can be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid vehicle, or an extended-range vehicle, etc. The interior of the vehicle 1000 is provided with a battery device 100, and the battery device 100 can be arranged at the bottom, head, or tail of the vehicle 1000. The battery device 100 can be used for power supply of the vehicle 1000. For example, the battery device 100 can be used as the operating power source of the vehicle 1000. The vehicle 1000 can also include a controller 200 and a motor 300. The controller 200 is used to control the battery device 100 to supply power to the motor 300. For example, it is used for the working power requirements during the start, navigation, and driving of the vehicle 1000.

[0059] In some embodiments of the present application, the battery device 100 can not only be used as the operating power source of the vehicle 1000, but also be used as the driving power source of the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0060] Please refer to Figure 2 , Figure 2 which is an exploded structural diagram of the battery device 100 provided in some embodiments of the present application. The battery device 100 includes a box body 10 and battery cells 20, and the battery cells 20 are accommodated in the box body 10. Among them, the box body 10 is used to provide a receiving space for the battery cells 20, and the box body 10 can adopt various structures. In some embodiments, the box body 10 can include an upper cover 11 and a box body 12. The upper cover 11 and the box body 12 are covered with each other, and the upper cover 11 and the box body 12 jointly define a receiving space for accommodating the battery cells 20. The box body 12 can be a hollow structure with one end open, and the upper cover 11 can be a plate-like structure. The upper cover 11 is covered on the open side of the box body 12 so that the upper cover 11 and the box body 12 jointly define a receiving space; the upper cover 11 and the box body 12 can also both be hollow structures with one side open, and the open side of the upper cover 11 is covered on the open side of the box body 12. Of course, the box body 10 formed by the upper cover 11 and the box body 12 can be various shapes, such as a cylinder, a cuboid, etc.

[0061] The battery device 100 mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assemblies may include a plurality of battery cells 20, and the plurality of battery cells 20 are connected in series, parallel, or in a hybrid connection through a busbar component.

[0062] In some embodiments, the battery cell assembly is generally formed by arranging a plurality of battery cells 20.

[0063] As an example, the battery cell assembly may be a battery module, and the battery module is formed by arranging and fixing a plurality of battery cells 20 into an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells 20 with cable ties.

[0064] In some embodiments, the battery device 100 may be a battery pack, and the battery pack includes a box body 10 and one or more battery cell assemblies, and the battery cell assemblies are accommodated in the box body 10.

[0065] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box body 10 by fixing the battery module in the box body 10.

[0066] As an example, the battery cell assembly may also be accommodated in the box body 10 by directly fixing a plurality of battery cells 20 to the box body 10.

[0067] In the battery device 100, there may be a plurality of battery cells 20, and the plurality of battery cells 20 may be connected in series, parallel, or in a hybrid connection. Hybrid connection means that there are both series and parallel connections among the plurality of battery cells 20. The plurality of battery cells 20 may be directly connected in series, parallel, or in a hybrid connection together, and then the whole formed by the plurality of battery cells 20 is accommodated in the box body 10; of course, the battery device 100 may also be that a plurality of battery cells 20 are first connected in series, parallel, or in a hybrid connection to form a battery module form, and then a plurality of battery modules are connected in series, parallel, or in a hybrid connection to form a whole and are accommodated in the box body 10. The battery device 100 may further include other structures. For example, the battery device 100 may further include a busbar component for realizing the electrical connection among the plurality of battery cells 20.

[0068] Among them, each battery cell 20 may be a secondary battery or a primary battery; it may also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be in a cylindrical shape, a flat shape, a cuboid shape, or other shapes, etc.

[0069] Refer to Figures 3 - 7, According to some embodiments of the present application, the present application provides a battery device 100, including a box body 10, battery cells 20, a mounting box 3, and a fuse 4. The box body 10 is provided with a receiving cavity; the battery cells 20 are disposed in the receiving cavity; the mounting box 3 is mounted on the box body 10 and at least partially located outside the box body 10. The mounting box 3 is provided with a mounting cavity 33 and a through hole 34, and the through hole 34 communicates the mounting cavity 33 and the receiving cavity; the fuse 4 is disposed in the mounting cavity 33.

[0070] The box body 10 includes an outer shell wall, and the outer shell wall encloses to form an internal receiving cavity. The battery cells 20 are disposed in the receiving cavity, and the number of the battery cells 20 can be multiple. The mounting box 3 is mounted on the box body 10 and at least partially located outside the box body 10, which is convenient to open the mounting box 3 from the outside of the box body 10. An installation cavity 33 is provided inside the mounting box 3, and the fuse 4 is disposed in the installation cavity 33. At the same time, a through hole 34 is provided on the side wall of the mounting box 3. The through hole 34 is used to communicate the mounting cavity 33 and the receiving cavity. Specifically, the through hole 34 is provided at a position where the side wall is located in the receiving cavity. Since after the mounting box 3 is assembled and the assembly is completed, when the mounting box 3 is affected by factors such as temperature change, the internal air pressure of the mounting box 3 will tend to increase, which not only affects the assembly, but also may pose an explosion risk after the air pressure increases. Therefore, an opening design is made on the side wall of the mounting box 3. By providing the through hole 34, the internal air pressure of the mounting cavity 33 and the internal air pressure of the receiving cavity are made to communicate with each other to achieve air pressure balance, and the explosion-proof valve of the battery device 100 is used to control the overall air pressure and reduce the explosion risk caused by the too high air pressure in the box body 31. In addition, providing the through hole 34 enables the mounting cavity 33 and the receiving cavity to be always in a communicating state, which can achieve air pressure balance, and the manufacturing method of the through hole 34 is simple, and no additional control operation is required during use. The mounting box 3 is mounted on the box body 10, and the mounting box 3 is partially disposed outside the box body 10. When the fuse 4 needs to be replaced or repaired, the fuse 4 can be taken out from the mounting box 3 from the outside of the box body 10 without opening the box body 10.

[0071] By providing the mounting box 3 on the box body 10, and the mounting box 3 is at least partially located outside the box body 10, and the fuse 4 is disposed in the mounting box 3, the fuse 4 can be taken out from the part of the mounting box 3 located outside the box body 10 for maintenance or replacement, without opening the box body 10, which greatly reduces the maintenance difficulty of the fuse 4. In addition, providing the through hole 34 enables the mounting cavity 33 and the receiving cavity to be always in a communicating state, which can achieve air pressure balance, and the manufacturing method of the through hole 34 is simple, and no additional control operation is required during use.

[0072] Refer to Figures 4 - 6, in some embodiments, the box body 10 is further provided with a mounting hole communicating with the accommodating cavity. The mounting box 3 includes a box body 31 and a cover body 32. The box body 31 is mounted in the mounting hole. The box body 31 is provided with a mounting cavity 33. The cover body 32 covers the opening 35 of the mounting cavity 33, and the cover body 32 is disposed outside the box body 10.

[0073] A mounting hole is provided on the shell wall surface of the outer shell wall of the box body 10, and the mounting hole communicates the accommodating cavity and the outside atmosphere. The mounting hole is provided for mounting the mounting box 3. Specifically, the box body 31 of the mounting box 3 is mounted on the mounting hole. The mounting box 3 includes a box body 31. The box body 31 is formed with an opening 35. The opening 35 of the box body 31 is also the opening 35 of the mounting cavity 33. The opening 35 is disposed on the part of the box body 31 extending out of the box body 10. The box body 31 is formed with a mounting cavity 33 for accommodating the fuse 4. The cover body 32 is movably mounted on the opening 35. When the cover body 32 is opened, the opening 35 is exposed, and the operator can take out the fuse 4 in the box body 31 through the opening 35 or directly detect the fuse 4 with an instrument; when in normal use, the cover body 32 closes the opening 35 to play a role in waterproofing and dustproofing. Here, the cover body 32 can be disposed outside the box body 10, so that the cover body 32 can be opened from the outside of the box body 10 without opening the entire box body 10. As for the connection manner between the cover body 32 and the box body 31, it can be a detachable connection, that is, the cover body 32 can be completely detached and separated from the box body 31; it can also be hinged, that is, the cover body 32 is hinged and rotated through a hinge shaft on the box body 31 to open or close the opening 35. And, the box body 31 can at least partially extend into the accommodating cavity, which is convenient for making full use of the internal space of the box body 10, reducing the space occupied outside the box body 10, and is beneficial to reducing the volume of the battery device 100. Of course, the cover body 32 is still disposed outside the box body 10. At the same time, through holes 34 can be provided on the part of the box body 31 extending into the accommodating cavity to facilitate communicating the mounting cavity 33 and the accommodating cavity.

[0074] By providing a mounting hole on the box body 10, the mounting box 3 can be partially disposed in the accommodating cavity through the mounting hole, which can reduce the volume of the battery device 100. And, by providing the mounting box 3 to include a box body 31 and a cover body 32 that can be opened and closed and is mounted on the box body 31, the cover body 32 can open the opening 35 of the box body 31 to repair or replace the fuse 4 in the mounting cavity 33. At the same time, the cover body 32 is disposed outside the box body 10, so that it is convenient to open the cover body 32 from the outside of the box body 10, realizing that the fuse 4 can be repaired or replaced without opening the box body 10, and reducing the maintenance difficulty.

[0075] Refer to Figures 5 - 7, in some embodiments, the installation position 3111 is provided with a threaded hole 31111. The connecting member 42 includes a connecting plate 421 and a threaded member 422. The threaded member 422 passes through the connecting plate 421 and is installed in the threaded hole 31111 to install the fuse 4 on the installation position 3111.

[0076] The connecting plate 421 can be provided on the body of the fuse 4. The connecting plate 421 is provided with a through hole. The threaded member 422 passes through the through hole and is installed in the threaded hole 31111 of the installation position 3111. In this way, the entire fuse 4 is installed in the installation cavity 33 of the installation box 3 through the threaded member 422. As for the number of the through holes and the threaded holes 31111, it can be two. The two through holes are respectively arranged on opposite sides of the body, and the through holes and the threaded holes 31111 are arranged in one-to-one correspondence. Of course, the number of the through holes and the threaded holes 31111 can also be four and arranged in one-to-one correspondence. The present application does not limit the specific number of the through holes and the threaded holes 31111.

[0077] By providing the threaded hole 31111 in the installation position 3111 and installing the fuse 4 in the installation box 3 through the threaded member 422, both the installation firmness can be improved and the disassembly and installation can be facilitated.

[0078] Refer to Figure 6 and Figure 7 , in some embodiments, an installation position 3111 and a signal interface 3112 are provided in the box body 31. The fuse 4 includes an electrical connector 41 and a connecting member 42. The electrical connector 41 is electrically connected to the signal interface 3112, and the connecting member 42 and the installation position 3111 are detachably connected.

[0079] The fuse 4 includes a body and an electrical connector 41 and a connecting member 42 provided on the body. The connecting member 42 is used to physically connect with the installation position 3111 of the box body 31 to realize the installation and fixation of the fuse 4. Specifically, it can be set in a detachable connection form, which is convenient for taking out the fuse 4. Of course, the fuse 4 also needs to be electrically connected to the internal circuit of the battery device 100. Therefore, a signal interface 3112 is provided in the box body 31. Plugging the electrical connector 41 into the signal interface 3112 can make the fuse 4 electrically connected to the internal circuit of the battery device 100 to realize signal transmission.

[0080] By providing a detachable connection between the installation position 3111 in the box body 31 and the connecting member 42 of the fuse 4, the installation and disassembly of the fuse 4 are facilitated; by providing an electrical connection between the signal interface 3112 in the box body 31 and the electrical connecting member 42 of the fuse 4, signal transmission can be realized, so that the function of the fuse 4 can be normally realized.

[0081] In some embodiments, the installation position 3111 includes a snap, and the connecting member 42 includes a bayonet; alternatively, the installation position 3111 includes a bayonet, and the connecting member 42 includes a snap; the installation position 3111 and the connecting member 42 are snap-connected through the snap and the bayonet.

[0082] In addition to the above-described form of installing using the threaded member 422, the detachable connection between the connecting member 42 and the installation position 3111 can also be achieved by snap connection. Specifically, a snap can be provided on the installation position 3111, and a bayonet that is snap-fitted with the snap can be provided on the connecting member 42; alternatively, a bayonet can be provided on the installation position 3111, and a snap that is fitted with the bayonet can be provided on the connecting member 42. The fuse 4 is installed in the installation cavity 33 through the snap connection between the snap and the bayonet.

[0083] Through the snap connection between the bayonet and the snap, the detachable connection of the fuse 4 in the installation box 3 can be realized, and the installation is very convenient.

[0084] In some embodiments, the box body 31 is detachably connected to the box body 10.

[0085] The box body 31 is installed in the installation hole on the outer wall of the box body 10, and can adopt a fixed connection method or a detachable connection method. The detachable connection method means that the box body 31 can be completely detached from the installation hole of the box body 10, so that it is more convenient to take out the fuse 4.

[0086] By setting the box body 31 to be detachably connected to the box body 10, the entire box body 31 can be taken out from the box body 10, which is more convenient to take out the fuse 4 and further reduces the maintenance difficulty.

[0087] In some embodiments, at least a part of the box body 31 extends into the accommodation cavity.

[0088] The installation box 3 can be such that the bottom of the box body 31 is installed at the position of the installation hole, or most of the box body 31 can be installed in the accommodation cavity, or only the cover body 32 of the box body 31 is exposed, and the rest is located in the accommodation cavity. However, the more the part of the box body 31 that extends into the accommodation cavity, the less the part of the box body 31 that is exposed outside the box body 10, and the smaller the volume of the entire battery device 100. Of course, at this time, the layout inside the box body 10 also needs to be considered. But at least a part of the box body 31 needs to extend into the accommodation cavity so that the accommodation cavity and the installation cavity 33 can be connected through the through hole 34, reducing the risk of explosion of the installation box 3 due to excessive air pressure.

[0089] By disposing at least a part of the box body 31 in the accommodation cavity, it is convenient for the installation cavity 33 of the box body 31 to communicate with the accommodation cavity through the through hole 34, reducing the explosion risk. At the same time, a part of the box body 31 extending into the accommodation cavity can reduce the volume of the battery device 100.

[0090] Reference Figure 6 or Figure 8 In some embodiments, the through hole 34 is disposed through the cavity bottom 3113 of the mounting cavity 33 , and a gap is disposed between the through hole 34 and the fuse 4 .

[0091] The box body 31 includes a cavity and a side wall formed around the cavity. The through hole 34 can be set on the side wall or on the cavity bottom 3113. When the through hole 34 is set on the side wall, it is required that the side wall portion provided with the through hole 34 needs to be located inside the accommodating cavity, rather than outside the box body 10, otherwise it is difficult to achieve the connection between the installation cavity 33 and the accommodating cavity through the through hole 34. The requirement for the installation box 3 extending into the accommodating cavity when it is set on the cavity bottom 3113 is relatively small. At the same time, a gap is set between the through hole 34 and the fuse 4 to reduce the risk that the through hole 34 is completely or partially shielded by the fuse 4, affecting the air circulation between the installation cavity 33 and the accommodating cavity.

[0092] By setting the through hole 34 at the bottom of the cavity 3113, the requirement for the box body 31 to extend into the installation cavity 33 is reduced, and the adjustable installation space is larger; at the same time, a gap is set between the through hole 34 and the fuse 4 to ensure air circulation between the installation cavity 33 and the accommodating cavity, so that the air pressure between the two is balanced.

[0093] Reference Figure 5 and Figure 6 In some embodiments, the box body 31 includes an inner shell 311 and an outer shell 312, the inner shell 311 includes a base 3114 and a side enclosure 3115 arranged on the base 3114, the outer shell 312 is sleeved on the side enclosure 3115 and connected to the base 3114, the inner shell 311 is provided with an installation cavity 33, and the cover body 32 is covered on the side of the outer shell 312 away from the base 3114.

[0094] The inner shell 311 and the outer shell 312 refer to the relative position relationship. Specifically, the inner shell 311 includes a base 3114 and a side enclosure 3115 disposed on the base 3114. The shape of the side enclosure 3115 is adapted to the shape of the outer shell 312, such as a square side enclosure or a circular side enclosure. The outer shell 312 is sleeved on the outer wall surface of the side enclosure 3115, and one side of the outer shell 312 is connected to the cover body 32, and the side of the outer shell 312 away from the cover body 32 is connected to the base 3114, so as to achieve the fixing of the outer shell 312. The inner shell 311 is provided with the above-mentioned installation cavity 33, and the fuse 4 is arranged in the installation cavity 33.

[0095] By configuring the box body 31 to include an inner shell 311 and an outer shell 312 , the fuse 4 can be installed through the installation cavity 33 of the inner shell 311 , and the cover body 32 can be connected through the outer shell 312 . The double-layer shell can also achieve a waterproof effect.

[0096] Reference Figure 5 , Figure 6 and Figure 9In some embodiments, the base 3114 is provided with a first connection hole 31141, the housing 312 is provided with a second connection hole 3121, and the cover 32 is provided with a third connection hole 321. The number of the first connection hole 31141, the second connection hole 3121, and the third connection hole 321 is the same and is provided in one-to-one correspondence;

[0097] The battery device 100 further includes a threaded fastener that passes through the third connection hole 321 , the second connection hole 3121 , and the first connection hole 31141 in sequence to connect the cover 32 , the outer shell 312 , and the inner shell 311 .

[0098] Here, the first connection hole 31141 may be a hole with an internal thread, and the second connection hole 3121 and the third connection hole 321 may be holes with smooth inner wall surfaces. The number of the first connection holes 31141, the second connection holes 3121, and the third connection holes 321 is the same and they are arranged in one-to-one correspondence. Each group of correspondingly arranged first connection holes 31141, second connection holes 3121, and third connection holes 321 is provided with a threaded fastener, which may be a screw. The screw extends from the third connection hole 321 of the cover body 32, passes through the second connection hole 3121 in sequence, and is installed on the internal thread of the first connection hole 31141, so that the cover body 32 and the outer shell 312 are detachably connected, and the detachable connection between the inner shell 311 and the outer shell 312 is also achieved.

[0099] By setting corresponding holes on the base 3114, the outer shell 312 and the cover body 32, a detachable connection between the three is achieved through threaded fasteners, which not only facilitates the installation and removal of the cover body 32, but also enables the outer shell 312 and the inner shell 311 to be detachably connected, thereby facilitating the repair or replacement of the fuse 4 in the inner shell 311.

[0100] In some embodiments, a hinge shaft is provided on the housing 312 , and the cover body 32 is rotatably connected to the hinge shaft, so that the cover body 32 can be rotated to open or close the installation cavity 33 .

[0101] Using a threaded fastener to completely remove the cover 32 is a way to achieve a detachable connection between the cover 32 and the box body 31. In this embodiment, the opening 35 of the box body 31 can also be opened by rotating the cover 32, so that the fuse 4 in the installation cavity 33 is exposed to the operator's field of vision, and the operator can repair or replace the fuse 4 through the opening 35. Specifically, a hinge shaft can be set on the box body 31, and the cover 32 is hinged to the hinge shaft. The hinge shaft can be set to be stationary while the cover 32 rotates around the hinge shaft to achieve opening or closing of the installation cavity 33 of the box body 31.

[0102] By providing a hinge shaft on the box body 31, the cover body 32 can be opened or closed in a rotational manner to access the fuse 4 in the installation cavity 33, facilitating the repair or replacement of the fuse 4, and making it convenient to open or close the cover body 32.

[0103] In some embodiments, referring to Figure 5 or Figure 6 , a second sealing ring 7 is provided on the abutting surface of the base 3114 and the outer shell 312; and / or, referring to Figure 9 , a first sealing ring 6 is provided on the abutting surface of the cover body 32 and the outer shell 312; and / or, a sealant layer is provided at the connection between the outer shell 312 and the box body 10.

[0104] Here, both the first sealing ring 6 and the second sealing ring 7 can be O-rings, made of elastic materials such as rubber or silica gel, which have a certain elasticity. The two sides of the first sealing ring 6 are respectively in contact with the cover body 32 or the outer shell 312, and the two sides of the second sealing ring 7 are respectively in contact with the base 3114 and the outer shell 312. The first sealing ring 6 and the second sealing ring 7 are pressed with a pre-pressure. The first sealing ring 6 can prevent water and dust from entering the connection interface between the cover body 32 and the outer shell 312, and the second sealing ring 7 can prevent water and dust from entering the connection interface between the base 3114 and the outer shell 312. The sealant layer can be formed by applying sealant to the connection between the box body 10 and the outer shell 312, also serving the purpose of preventing water and dust.

[0105] By providing a first sealing ring 6 on the abutting surface of the cover body 32 and the outer shell 312, a second sealing ring 7 on the abutting surface of the base 3114 and the outer shell 312, and a sealant layer at the connection between the outer shell 312 and the box body 10, the functions of waterproofing and dustproofing can be achieved.

[0106] Referring to Figure 8 , in some embodiments, a connecting portion 31142 is provided on the side of the base 3114 away from the side wall 3115, and a connection position corresponding to the connecting portion 31142 is provided in the box body 10.

[0107] Here, the connecting portion 31142 is located in the accommodating cavity and can be connected to the connection position in the box body 10, further fixing the installation box 3 and preventing the installation box 3 from becoming loose from the installation hole. As for the form of the connecting portion 31142, there can be various forms. It can be an extended section with a screw hole provided thereon, and the connecting portion 31142 can be fixed in the box body 10 by bolts or the like. Of course, it can also be in the form of a plug-in connection.

[0108] By providing the connecting portion 31142, which extends into the accommodating cavity and is connected to the connection position in the box body 10, the fixed installation of the installation box 3 can be realized, reducing the risk of the installation box 3 falling off.

[0109] According to some embodiments of the present application, the battery device 100 includes a box body 10, a battery cell 20, a mounting box 3 and a fuse 4, the box body 10 is provided with a receiving cavity and a mounting hole connected to the receiving cavity; the battery cell 20 is arranged in the receiving cavity; the mounting box 3 is installed in the mounting hole, the mounting box 3 includes a box body 31 and a cover body 32, the box body 31 is installed in the mounting hole, the cavity bottom 3113 of the box body 31 is provided with a through hole 34 connecting the mounting cavity 33 and the receiving cavity, the box body 31 at least partially extends into the receiving cavity, the box body 31 is provided with a mounting cavity 33, the cover body 32 covers the opening 35 of the installation cavity 33, and the cover body 32 is arranged on the outside of the box body 10; a mounting position 3111 and a signal interface 3112 are arranged in the box body 31, the fuse 4 includes an electrical connector 41 and a connecting member 42, the electrical connector 41 is electrically connected to the signal interface 3112, the mounting position 3111 is provided with a threaded hole 31111, the connecting member 42 includes a connecting plate 421 and a threaded member 422, the threaded member 422 passes through the connecting plate 421 and is installed in the threaded hole 31111, so as to install the fuse 4 on the mounting position 3111. The box body 31 includes an inner shell 311 and an outer shell 312, the inner shell 311 includes a base 3114 and a side enclosure 3115 arranged on the base 3114, the outer shell 312 is sleeved on the side enclosure 3115 and connected to the base 3114, the inner shell 311 is provided with a mounting cavity 33, the cover body 32 is covered on a side of the outer shell 312 away from the base 3114, the base 3114 is provided with a first connection hole 31141, the outer shell 312 is provided with a second connection hole 3121, and the cover body 32 is provided with a third connection hole 321, the first connection hole 31141, the second connection hole 3121, and the third connection hole 321 are the same in number and are arranged one by one; the battery device 100 also includes a threaded fastener, the threaded fastener passes through the third connection hole 321, the second connection hole 3121 and the first connection hole 31141 in sequence to connect the cover body 32, the inner shell 311 and the outer shell 312. A first sealing ring 6 is provided on the contact surface between the cover 32 and the shell 312, a second sealing ring 7 is provided on the contact surface between the base 3114 and the shell 312, and a sealing layer is provided at the connection between the shell 312 and the box 10. A connecting portion 31142 is provided on the side of the base 3114 away from the side 3115, and a connection position with the connecting portion 31142 is provided in the box 10. The embodiment of the present application has the advantages of being able to take out the fuse 4 from the installation box 3 for replacement or maintenance without opening the box 10, and low maintenance difficulty.

[0110] According to some embodiments of the present application, the present application provides an electric device, which includes an equipment body and the above-mentioned battery device 100, and the battery device 100 is arranged in the equipment body. The above-mentioned electric device can be a vehicle 1000. Since the electric device includes any technical solution of all the above-mentioned embodiments, it has at least all the beneficial effects brought by any of the above-mentioned technical solutions, which will not be repeated here one by one.

[0111] The above are only optional embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structural transformation made under the application concept of the present application by using the content of the specification and drawings of the present application, or any direct / indirect application in other related technical fields, is included in the patent protection scope of the present application.

Claims

1. A battery device, characterized in that: include: A box body, wherein the box body is provided with a receiving cavity and a mounting hole communicating with the receiving cavity; A battery cell, wherein the battery cell is disposed in the accommodation cavity; An installation box, the installation box comprising a box body and a cover body, the box body being installed in the installation hole and at least partially located outside the box body; the box body being provided with an installation cavity, the cover body covering an opening of the installation cavity, and the cover body being provided outside the box body, the box body being provided with a through hole, the through hole communicating the installation cavity and the accommodating cavity; and A fuse is arranged in the installation cavity.

2. The battery device according to claim 1, characterized in that The box body is provided with a mounting position and a signal interface, the fuse comprises an electrical connector and a connecting piece, the electrical connector is electrically connected to the signal interface, and the connecting piece is detachably connected to the mounting position.

3. The battery device according to claim 2, characterized in that: The installation position is provided with a threaded hole, and the connecting member includes a connecting plate and a threaded member, and the threaded member passes through the connecting plate and is installed in the threaded hole, so as to install the fuse on the installation position.

4. The battery device according to claim 2, characterized in that: The mounting position includes a buckle, and the connecting member includes a bayonet; or, the mounting position includes a bayonet, and the connecting member includes a buckle; The installation position and the connecting member are snap-connected with the bayonet through the buckle.

5. The battery device according to any one of claims 1 to 4, characterized in that: The box body is detachably connected to the box body; and / or, The box body at least partially extends into the accommodating cavity; and / or, The through hole is arranged to pass through the bottom of the installation cavity, and a gap is arranged between the through hole and the fuse.

6. The battery device according to any one of claims 1 to 4, characterized in that: The box body includes an inner shell and an outer shell, the inner shell includes a base and a side enclosure arranged on the base, the outer shell is sleeved on the side enclosure and connected to the base, the inner shell is provided with the installation cavity, and the cover body is covered on a side of the outer shell away from the base.

7. The battery device according to claim 6, characterized in that: The base is provided with a first connection hole, the shell is provided with a second connection hole, and the cover is provided with a third connection hole, and the first connection hole, the second connection hole, and the third connection hole are the same in number and are provided in one-to-one correspondence; The battery device further includes a threaded fastener, which passes through the third connection hole, the second connection hole, and the first connection hole in sequence to connect the cover body, the outer shell, and the inner shell.

8. The battery device according to claim 6, characterized in that: The housing is provided with a hinge shaft, and the cover body is rotatably connected to the hinge shaft so that the cover body can be rotated to open or close the installation cavity.

9. The battery device according to claim 6, characterized in that: A first sealing ring is provided on the contact surface between the cover and the housing; and / or, A second sealing ring is provided on the abutting surface between the base and the housing; and / or, A sealing rubber layer is provided at the connection between the shell and the box body.

10. The battery device according to claim 6, characterized in that: A connecting portion is provided on a side of the base away from the side surround, and a connecting position for the connecting portion is provided in the box body.

11. An electrical device, characterized in that: The electrical equipment comprises an equipment body and a battery device according to any one of claims 1 to 10, wherein the battery device is arranged on the equipment body.

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