High-voltage box, battery and electric equipment

Abstract

The utility model relates to the technical field of high-voltage boxes, and provides a high-voltage box, a battery and electric equipment.The high-voltage box comprises a box body, the box body is connected to a box body, a containing cavity used for containing electric appliance elements is formed in the box body, a through hole communicated with the containing cavity is formed in the box body, and an electric connection structure of the battery can be inserted into the through hole; according to the high-voltage box provided by the embodiment of the invention, the through hole is formed in the box body, so that the electric connection structure of the battery can be inserted into the through hole and extends into the accommodating cavity, and the electric connection structure can be directly and electrically connected with the electric appliance element in the high-voltage box body; therefore, the electric connection structure of the battery directly extends into the box body and is electrically connected with the internal electric appliance element, and compared with a mode of plugging connection through a male seat and a female seat of a connector, the probability of connection failure can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of high-voltage boxes, and in particular provides a high-voltage box, a battery and an electrical device. Background Art

[0002] The high-voltage box is mainly used to centrally control and protect the high-voltage power system to ensure the safe and stable operation of the power system. In electric or hybrid-powered vehicles and other power-consuming devices, the high-voltage box is a control unit that distributes the energy of the power battery and is used to distribute the high voltage to the power battery.

[0003] In the related art, the high-voltage box and the battery are electrically connected by plugging the male and female sockets of the connector, but the connector is prone to connection interface failure, which leads to failure of the connection between the high-voltage box and the battery. Utility Model Content

[0004] The purpose of the embodiments of the present application is to provide a high-voltage box, a battery and an electrical device, aiming to solve the problem in the related art that the connection interface between the high-voltage box and the battery is prone to failure when the male and female sockets of the connector are plugged in.

[0005] To achieve the above purpose, the technical solution adopted in the embodiment of the present application is:

[0006] In the first aspect, an embodiment of the present application provides a high-voltage box, which is arranged on a battery box. The high-voltage box includes a box body, which is connected to the box body. A receiving cavity for receiving electrical components is formed inside the box body. A through hole connecting the receiving cavity is opened on the box body, and the through hole is used for inserting the electrical connection structure of the battery.

[0007] Beneficial effects of the embodiments of the present application: The high-voltage box provided in the embodiments of the present application has a box body that can be connected to a battery box body, and a through hole can be opened on the box body, so that the electrical connection structure of the battery can be inserted into the through hole and extend into the accommodating cavity, so that the electrical connection structure can be directly electrically connected to the electrical components in the high-voltage box body; thereby, the electrical connection structure of the battery is directly extended into the interior of the box body and electrically connected to the internal electrical components, which can effectively reduce the probability of connection failure compared to the method of plugging and connecting through the male and female sockets of the connector; at the same time, since the use of connectors is reduced, the overall cost of the high-voltage box can be effectively reduced, and the assembly efficiency and maintenance efficiency of the high-voltage box can be improved.

[0008] In some embodiments, the box body has a mounting side, the mounting side faces the box body, and the through hole is opened on the mounting side.

[0009] By adopting the above technical solution, a through hole can be opened on the installation side facing the box body, and the electrical connection structure of the battery can be directly inserted into the through hole, which can effectively reduce the wiring distance of the electrical connection structure and improve the assembly efficiency of the high-voltage box.

[0010] In some embodiments, at least a portion of the mounting side surface is disposed against a wall surface of the box body, and a through hole is formed in the portion of the mounting side surface that is disposed against the wall surface of the box body.

[0011] By adopting the above-mentioned technical solution, a through hole can be opened in the part of the installation side that is against the wall of the box body. As a result, the wall of the box body can form a cover for the through hole to improve the sealing of the inside of the box body. At the same time, it can also reduce the distance between the through hole and the box body to reduce the material used in the electrical connection structure and achieve the purpose of reducing costs.

[0012] In some embodiments, the high voltage box further comprises a sealing structure, which is disposed on the box body and is used to seal the through hole.

[0013] By adopting the above technical solution and providing a sealing structure on the box body, sealing protection for the through hole can be achieved, thereby improving the sealing performance of the accommodating cavity.

[0014] In some embodiments, the sealing structure includes a sealing ring, which is clamped between the mounting side and the box body, and the sealing ring is arranged around the orifice end of the through hole.

[0015] By adopting the above-mentioned technical solution, a sealing ring is arranged between the installation side and the box body, so that when the box body is installed on the box body, the sealing ring is clamped between the installation side and the box body, so that the sealing ring and the box body can form a sealing protection for the through hole, thereby effectively improving the sealing of the accommodating cavity.

[0016] In some embodiments, the sealing ring includes a main body and a protruding portion, the main body is clamped between the installation side and the box body, the main body is arranged around the through hole, the protruding portion is connected to the main body, and the protruding portion is inserted into the through hole.

[0017] By adopting the above-mentioned technical solution, the main body of the sealing ring is arranged between the installation side and the box body to achieve sealing protection for the through hole. At the same time, the protruding portion of the sealing ring is inserted into the through hole, so that when the electrical connection structure is inserted, the protruding portion is located between the electrical connection structure and the inner wall of the through hole. The protruding portion can protect the electrical connection structure and reduce the probability of the insulating sleeve on the electrical connection structure being worn by the hole end or the inner wall of the through hole.

[0018] In some embodiments, the protruding portion is ring-shaped and is located between the electrical connection structure and the inner wall of the through hole.

[0019] By adopting the above-mentioned technical solution, the annular protrusion extends into the through hole, so that when the electrical connection structure is inserted into the through hole, the electrical connection structure can pass through the center of the annular protrusion, so that the protrusion can protect the entire circumference of the inner wall of the through hole, further reducing the probability of the insulating sleeve on the electrical connection structure being worn by the inner wall of the hole.

[0020] In some embodiments, the protruding portion passes through the through hole and extends into the accommodating cavity.

[0021] By adopting the above-mentioned technical solution, since the protruding portion extends into the accommodating cavity, the protruding portion can also cover and protect the hole end of the through hole located on one side of the accommodating cavity, thereby reducing the probability of the insulating sleeve on the electrical connection structure being worn and scratched by the hole end located on one side of the accommodating cavity.

[0022] In some embodiments, the mounting side surface is connected to the inner wall of the through hole via a first chamfered surface.

[0023] By adopting the above technical solution, the installation side surface is connected to the inner wall of the through hole through the first chamfered surface, which can reduce the probability of scratching the insulating sleeve on the electrical connection structure due to the corners formed between the installation side surface and the inner wall of the through hole.

[0024] In some embodiments, the inner wall surface of the accommodating cavity and the inner wall of the through hole are connected via a second chamfered surface.

[0025] By adopting the above-mentioned technical solution, the inner wall surface of the accommodating cavity and the inner wall of the through hole are connected by a first chamfered surface, which can reduce the probability of scratching the insulating sleeve on the electrical connection structure due to the edges formed between the inner wall surface of the accommodating cavity and the inner wall of the through hole.

[0026] In some embodiments, a mounting portion is disposed on the box body, and the mounting portion is connected to the box body.

[0027] By adopting the above technical solution, the box body can be connected and assembled with the box body through the mounting portion to improve assembly efficiency.

[0028] In some embodiments, the mounting portion has a connection surface facing the box body, and the connection surface is flush with the mounting side surface.

[0029] By adopting the above technical solution, the connection surface of the mounting part and the mounting side surface are flush, so that when the mounting part is installed on the box body, the mounting side surface can be simultaneously installed against the surface of the box body to ensure the abutment fit of the mounting side surface against the box body, thereby improving the sealing protection effect of the sealing ring on the through hole.

[0030] In some embodiments, the box body includes an outer shell and an upper cover, the outer shell is formed with a receiving cavity having an opening, the upper cover is connected to the outer shell and seals the opening; the mounting portion is disposed on the outer shell, and the through hole is opened on the outer shell.

[0031] By adopting the above-mentioned technical solution, the shell forms a accommodating cavity to accommodate the electrical components, and the upper cover can be covered on the opening of the shell to form a seal for the accommodating cavity. At the same time, a through hole is opened on the shell, and the mounting portion is also located on the shell. Thus, the shell can be connected to the box body through the mounting portion, and the electrical connection structure can extend into the accommodating cavity through the through hole opened on the shell to achieve electrical connection; when the high-voltage box needs to be maintained, the upper cover can be opened to expose the electrical components inside the accommodating cavity, and there is no need to disassemble and assemble the shell, which effectively improves the convenience of maintenance.

[0032] In some embodiments, a connecting bracket is disposed in the accommodating cavity, and the connecting bracket is used to fix the power supply connecting structure and the conductive structure of the electrical component.

[0033] By adopting the above-mentioned technical solution, by arranging a connecting bracket in the accommodating cavity, the electrical connection structure of the battery and the conductive structure of the electrical component can be fixed on the connecting bracket and form a contact connection. The electrical connection is achieved by fixing and contacting, which effectively improves the stability and reliability of the electrical connection.

[0034] In some embodiments, the number of through holes is one or two.

[0035] By adopting the above technical solution, the number of through holes can be one, and the electrical connection structure includes a positive copper busbar and a negative copper busbar, and both the positive copper busbar and the negative copper busbar can be plugged and connected through the through hole; or, the number of through holes can be two, so that the positive copper busbar and the negative copper busbar can be plugged and connected through different through holes.

[0036] In the second aspect, an embodiment of the present application also provides a battery, including a box body, a battery cell, an electrical connection structure and a high-voltage box as described above, wherein the battery cell is accommodated in the box body, the box body of the high-voltage box is arranged on the outer surface of the box body, the electrical connection structure is electrically connected to the battery cell, the electrical connection structure is penetrated through the through hole and electrically connected to the electrical components in the accommodating cavity.

[0037] Beneficial effects of the embodiments of the present application: The battery provided in the embodiments of the present application includes the above-mentioned high-voltage box. Since a through hole is provided on the box body of the high-voltage box, the electrical connection structure of the battery can be passed through the through hole and extended into the accommodating cavity, so that the electrical connection structure can be directly connected to the electrical components in the accommodating cavity, which can effectively reduce the probability of connection failure of the high-voltage box, thereby effectively improving the stability and reliability of the battery.

[0038] In a third aspect, an embodiment of the present application further provides an electrical device, comprising a battery as described above, and the battery is used to provide electrical energy.

[0039] Beneficial effects of the embodiments of the present application: The electrical equipment provided by the embodiments of the present application includes the above-mentioned battery. On the basis that the above-mentioned battery has better stability and reliability, the stability and reliability of the electrical equipment are also better. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or related technical descriptions will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0042] Figure 2 An exploded view of a battery provided in an embodiment of the present application;

[0043] Figure 3 A schematic diagram of the structure of a high-voltage box provided in an embodiment of the present application;

[0044] Figure 4 An exploded view of a high voltage box provided in an embodiment of the present application;

[0045] Figure 5 A schematic diagram of the structure of a sealing ring provided in an embodiment of the present application;

[0046] Figure 6 A schematic diagram of the structure of another sealing ring provided in an embodiment of the present application;

[0047] Figure 7 A schematic diagram of the structure of a housing provided in an embodiment of the present application.

[0048] Among them, the reference numerals in the figure are:

[0049] 1000. Vehicles;

[0050] 100, battery; 200, controller; 300, motor;

[0051] 10. Box body; 11. First part; 12. Second part; 20. Battery cell; 30. Electrical connection structure; 31. Positive copper busbar; 32. Negative copper busbar;

[0052] 400, high voltage box;

[0053] 410, box body; 4101, accommodating cavity; 4102, mounting side; 411, through hole; 412, first chamfered surface; 413, mounting portion; 4131, connecting surface; 414, housing; 415, upper cover; 4151, opening;

[0054] 420. Electrical components;

[0055] 430, sealing structure; 431, sealing ring; 4311, main body; 4312, protruding portion;

[0056] 440. Connect the bracket. DETAILED DESCRIPTION

[0057] Embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0058] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0060] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0061] At present, from the perspective of market development, 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, electric cars, as well as military equipment and aerospace and other fields. With the continuous expansion of the application field of power batteries, the market demand is also constantly expanding.

[0062] Batteries are used to provide electrical energy in power systems. Batteries need to be controlled and protected by high-voltage boxes to ensure safe and stable operation of the power system. In electrical devices such as electric or hybrid vehicles, high-voltage boxes are control units that distribute power battery energy and are used to distribute high voltage to power batteries. In related technologies, the high-voltage box and the battery are electrically connected by plugging the male and female sockets of the connector; however, the plug-in matching structure of the male and female sockets of the connector can easily lead to connector failure when the connection interface of the male or female socket fails, thereby causing the connection between the high-voltage box and the battery cells inside the battery to fail.

[0063] Based on the above considerations, in order to solve the problem of connection interface failure that is prone to occur when the male and female sockets of the connector are plugged in between the high-voltage box and the battery in the related art, a high-voltage box is designed. By opening a through hole on the box body of the high-voltage box, when connecting the high-voltage box, the electrical connection structure of the battery can be used to pass through the through hole to the inside of the accommodating cavity, so that the electrical connection structure is directly electrically connected to the electrical components in the accommodating cavity, which can reduce the use of connectors and thus reduce the probability of high-voltage box connection failure due to failure of the connection interface of the connector; at the same time, since the use of connectors is reduced, the structure of the high-voltage box is simplified, thereby reducing the cost of the high-voltage box and improving the assembly efficiency and maintenance efficiency of the high-voltage box.

[0064] The high-voltage box disclosed in the embodiment of the present application can be hung on the box of the battery to achieve assembly, and can be directly connected to the electrical connection structure of the battery through the through hole to achieve electrical connection with the battery.

[0065] The battery provided in the embodiment of the present application can be used as a power source for electrical equipment, or as an energy storage element for various energy storage systems. Electrical equipment can be, but is not limited to, mobile phones, tablets, laptops, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, electric toys can include fixed or mobile electric toys, for example, game consoles, electric car toys, electric ship toys, electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, spacecraft, etc.

[0066] For the convenience of description, the following embodiments are described by taking a vehicle 1000 as an example of an electrical device in an embodiment of the present application.

[0067] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of a vehicle 1000 provided for some embodiments of the present application. The vehicle 1000 may be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery 100 is provided inside the vehicle 1000, and the battery 100 may be provided at the bottom, head or tail of the vehicle 1000. The battery 100 may be used to power the vehicle 1000, for example, the battery 100 may be used as an operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 200 and a motor 300, and the controller 200 is used to control the battery 100 to power the motor 300, for example, for starting, navigating and driving the vehicle 1000.

[0068] In some embodiments of the present application, the battery 100 can not only serve as an operating power source for the vehicle 1000, but also serve as a driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0069] Please refer to Figure 2 , Figure 2 An exploded view of a battery 100 provided in some embodiments of the present application. The battery 100 includes a box 10 and a battery cell 20, and the battery cell 20 is contained in the box 10. Among them, the box 10 is used to provide a storage space for the battery cell 20, and the box 10 can adopt a variety of structures. In some embodiments, the box 10 may include a first part 11 and a second part 12, the first part 11 and the second part 12 cover each other, and the first part 11 and the second part 12 jointly define a storage space for accommodating the battery cell 20. The second part 12 may be a hollow structure with one end open, the first part 11 may be a plate-like structure, and the first part 11 covers the open side of the second part 12, so that the first part 11 and the second part 12 jointly define a storage space; the first part 11 and the second part 12 may also be hollow structures with one side open, and the open side of the first part 11 covers the open side of the second part 12. Of course, the box 10 formed by the first part 11 and the second part 12 may be in a variety of shapes, such as a cylinder, a cuboid, etc.

[0070] In the battery 100, there may be multiple battery cells 20, and the multiple battery cells 20 may be connected in series, in parallel, or in a mixed connection. A mixed connection means that the multiple battery cells 20 are both connected in series and in parallel. The multiple battery cells 20 may be directly connected in series, in parallel, or in a mixed connection, and then the whole formed by the multiple battery cells 20 is accommodated in the box 10; of course, the battery 100 may also be a battery module formed by connecting multiple battery cells 20 in series, in parallel, or in a mixed connection, and then the multiple battery modules are connected in series, in parallel, or in a mixed connection to form a whole, and accommodated in the box 10. The battery 100 may also include other structures, for example, the battery 100 may also include a busbar component for realizing electrical connection between the multiple battery cells 20.

[0071] Each battery cell 20 may be a secondary battery or a primary battery, or a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited thereto. The battery cell 20 may be cylindrical, flat, rectangular, or in other shapes.

[0072] According to some embodiments of this application, please refer to Figures 2 to 4 In the first aspect, the embodiment of the present application provides a high-voltage box 400, which is arranged on the box body 10 of the battery 100. The high-voltage box 400 includes a box body 410, which is connected to the box body 10. A receiving cavity 4101 for receiving an electrical component 420 is formed inside the box body 410. A through hole 411 connected to the receiving cavity 4101 is opened on the box body 410, and the through hole 411 is used for inserting the electrical connection structure 30 of the battery 100.

[0073] The box body 410 of the high-voltage box 400 has a receiving cavity 4101 formed inside, and the electrical component 420 is received in the receiving cavity 4101. The box body 410 may be, but is not limited to, a box body 410 of various configurations such as a rectangular box, a cylindrical box, a spherical box, etc.; alternatively, the box body 410 may be a box body 410 of various materials such as an aluminum alloy box, a steel alloy box, an injection molding box, a steel-aluminum composite box, etc.

[0074] The box body 410 is connected to the box body 10. Optionally, the box body 410 can be connected to the inner wall surface of the box body 10, or the box body 410 can also be connected to the outer wall surface of the box body 10 to achieve the purpose of being hung on the box body 10; wherein, the box body 410 can be fixed to the wall surface of the box body 10 by fasteners (such as bolts, screws, etc.), or the box body 410 can also be adhesively fixed to the box body 10, or the box body 410 can also be fixed to the box body 10 by welding to achieve connection.

[0075] The through hole 411 is formed on the box body 410 for inserting the electrical connection structure 30 of the battery 100 , so that the electrical connection structure 30 of the battery 100 can directly extend into the accommodating cavity 4101 and realize electrical connection with the electrical component 420 inside.

[0076] It is understandable that the electrical connection structure 30 refers to a conductive structure of the battery 100 for transmitting electrical energy; the electrical connection structure 30 includes but is not limited to conductive structures such as electrical connection bars (such as copper metal conductive bars, silver metal conductive bars, etc., which have good conductive properties), conductive cables, conductive columns, etc. It should be understood that the outer surface of the electrical connection structure 30 is provided with an insulating sleeve to achieve insulation protection. For example, in some specific embodiments, the electrical connection structure 30 may include a connecting copper bar, and the connecting copper bar includes a positive copper bar 31 and a negative copper bar 32, and the positive copper bar 31 and the negative copper bar 32 are both provided with a thermoplastic sleeve to achieve insulation protection, and the positive copper bar 31 and the negative copper bar 32 are exposed to the thermoplastic sleeve at the connection to achieve contact connection. The connecting copper bar is arranged on the box 10, for example, it can be installed on the box 10 through an insulating mounting seat, and the connecting copper bar extends out of the box 10 to achieve electrical connection with the equipment outside the box 10 (such as the high-voltage box 400 in this embodiment).

[0077] Among them, one end of the electrical connection structure 30 is electrically connected to the battery cell 20 inside the box body 10, and the other end of the electrical connection structure 30 can be inserted into the through hole 411 and extended into the accommodating cavity 4101 to achieve the purpose of electrically connecting the electrical components 420 in the accommodating cavity 4101. By adopting a structural design in which the electrical connection structure 30 is directly inserted into the accommodating cavity 4101 for direct connection, the use of connectors can be reduced, thereby reducing costs and reducing the risk of connection failure of the high-voltage box 400 due to connection failure caused by the connection interface of the connector.

[0078] The through hole 411 is used for inserting the power supply connection structure 30; the through hole 411 can be, but is not limited to, a circular through hole, a polygonal through hole (eg, a rectangular through hole, a hexagonal through hole, etc.), or any other through hole shape.

[0079] Optionally, the through hole 411 may be provided on any side of the box body 410. For example, in some embodiments, the through hole 411 may be provided on a side wall of the box body 410 facing the box body 10, and the electrical connection structure 30 of the battery 100 may face the box body 410 and directly extend to be inserted into the through hole 411; or, in other embodiments, the through hole 411 may be provided on any other wall other than the side wall of the box body 410 facing the box body 10, for example, a side wall intersecting with the wall of the box body 410 facing the box body 10, and the electrical connection structure 30 of the battery 100 needs to be bent and routed toward the side wall where the through hole 411 is provided, and then be correspondingly inserted into the through hole 411.

[0080] Optionally, the number of through holes 411 can be one, and the electrical connection structure 30 includes a connecting copper busbar, so that the positive copper busbar 31 and the negative copper busbar 32 of the connecting copper busbar can be passed through the through hole 411; or, the number of through holes 411 can be two, and the electrical connection structure 30 includes a connecting copper busbar, so that the positive copper busbar 31 and the negative copper busbar 32 of the connecting copper busbar can be passed through different through holes 411 respectively; or, the number of through holes 411 can also be any number of more than two, so that any one or two through holes 411 that are opposite to or closer to the electrical connection structure 30 can be selected for passing, so as to improve assembly efficiency.

[0081] The high-voltage box 400 provided in the embodiment of the present application has a box body 410 of the high-voltage box 400 that can be connected to the box body 10 of the battery 100, and a through hole 411 can be opened on the box body 410, so that the electrical connection structure 30 of the battery 100 can be inserted into the through hole 411 and extend into the accommodating cavity 4101, so that the electrical connection structure 30 can be directly electrically connected to the electrical component 420 in the body of the high-voltage box 400; thereby, the electrical connection structure 30 of the battery 100 is used to directly extend into the box body 410 and electrically connect with the internal electrical component 420, which can effectively reduce the probability of connection failure compared to the method of plugging and connecting through the male and female sockets of the connector; at the same time, since the use of connectors is reduced, the overall cost of the high-voltage box 400 can be effectively reduced, and the assembly efficiency and maintenance efficiency of the high-voltage box 400 can be improved.

[0082] It can be understood that the electrical components 420 accommodated in the accommodating cavity 4101 include but are not limited to resistors, positive relays, negative relays, shunts, pre-charge relays, internal copper busbars for electrically connecting the above components, and mounting structures (mounting seats, mounting brackets, etc.) for connecting and assembling the above components.

[0083] Please refer to Figures 2 to 4 In some embodiments, the box body 410 has a mounting side surface 4102 , the mounting side surface 4102 faces the box body 10 , and the through hole 411 is opened on the mounting side surface 4102 .

[0084] The installation side surface 4102 of the box body 410 refers to the side surface of one end of the box body 410 facing the box body 10 when the box body 410 is connected to the box body 10. It can be understood that when the box body 410 is connected to the box body 10, a tight connection can be formed between the box body 410 and the box body 10, so that the installation side surface 4102 of the box body 410 is against the surface of the box body 10; when the box body 410 is connected to the box body 10, a spaced connection can be formed between the box body 410 and the box body 10, so that a space will also be formed between the installation side surface 4102 of the box body 410 and the surface of the box body 10.

[0085] A through hole 411 is provided on the installation side 4102, so that the opening of the through hole 411 will be arranged toward the box body 10 of the battery 100; thereby, one end of the electrical connection structure 30 of the battery 100 can extend into the box body 10 and be electrically connected to the battery cell 20, or form an electrical connection with the conductive connection part of the battery cell 20 on the box body 10, and the other end of the electrical connection structure 30 can extend to the through hole 411 provided on the installation side 4102 and be inserted into the through hole 411, so that the electrical connection structure 30 can extend into the accommodating cavity 4101 and be directly electrically connected to the electrical component 420; the electrical connection structure 30 can be extended and routed along a straight line, and compared with the case where the through hole 411 is provided on other sides of the box body 410, the routing distance of the electrical connection structure 30 can be effectively reduced, thereby achieving the purpose of reducing the connection cost of the high-voltage box 400; at the same time, it is more convenient to insert the connecting copper plate into the through hole 411 along a straight line, thereby improving the assembly efficiency of the high-voltage box 400.

[0086] Please refer to Figures 2 to 4 In some embodiments, at least a portion of the mounting side surface 4102 is against the wall of the box body 10 , and the through hole 411 is opened in the portion of the mounting side surface 4102 against the wall of the box body 10 .

[0087] At least part of the mounting side 4102 abuts against the wall of the box body 10; optionally, part of the mounting side 4102 abuts against the wall of the box body 10, for example, part of the mounting side 4102 forms a convex structure, which can abut against the wall of the box body 10, or, the mounting side 4102 can be an arcuate surface, so that part of the arcuate surface can abut against the wall of the box body 10; or, the mounting side 4102 can completely abut against the wall of the box body 10, so that when the box body 410 is connected to the box body 10, the mounting side 4102 of the box body 410 can abut against the wall of the box body 10 as a whole.

[0088] The through hole 411 is formed in the part where the installation side 4102 is against the wall of the box body 10. Therefore, when the box body 410 is connected to the box body 10, the installation side 4102 can be against the box body 10, so that the wall of the box body 10 can block the through hole 411, effectively improving the sealing effect of the through hole 411, and further improving the sealing protection effect in the accommodating cavity 4101. At the same time, since the installation side 4102 is against the box body 10, the distance between the orifice end of the through hole 411 and the box body 10 can be reduced, and the path of the electrical connection structure 30 from the box body 10 to the through hole 411 and inserted into the accommodating cavity 4101 is shorter, and the material used for the electrical connection structure 30 is lower, which can achieve the improvement of the material cost of the connection of the high-voltage box 400.

[0089] Please refer to Figures 2 to 4In some embodiments, the high voltage box 400 further includes a sealing structure 430 , which is disposed on the box body 410 and is used to seal the through hole 411 .

[0090] The sealing structure 430 is used to seal the through hole 411, thereby forming a seal and preventing slipping inside the accommodating cavity 4101, effectively reducing the probability of dust, water droplets, etc. entering the accommodating cavity 4101 through the through hole 411 and affecting the internal electrical components 420.

[0091] Optionally, in the first embodiment, the sealing structure 430 may be a sealant layer. After the electrical connection structure 30 is inserted into the through hole 411 and the connection assembly is completed, the through hole 411 is sealed with glue through a glue filling process to form a sealant layer.

[0092] Alternatively, in a second embodiment, the sealing structure 430 may be an elastic filling layer, such as a silicone filling layer, a rubber filling layer, etc. The elastic filling layer may be filled into the through hole 411 so that the elastic filling layer fills the inner wall of the through hole 411 and the gap between the connecting copper plates, thereby achieving sealing protection for the accommodating cavity 4101.

[0093] Alternatively, in a third embodiment, the sealing structure 430 may be an elastic sealing ring, such as a rubber sealing ring, a silicone sealing ring, etc. The elastic sealing ring is arranged on the installation side 4102 and is arranged around the hole end of the through hole 411, so that when the box body 410 is installed on the box body 10, the installation end side will be against the wall surface of the box body 10, so that the installation end side and the wall surface of the box body 10 form a clamp for the elastic sealing ring, so that the elastic sealing ring can seal the through hole 411 around the through hole.

[0094] In this configuration, by providing a sealing structure 430 on the box body 410 , the sealing structure 430 is used to seal and protect the through hole 411 opened on the box body 410 , so as to enhance the sealing and protection effect on the accommodating cavity 4101 .

[0095] Please refer to Figures 2 to 4 In some embodiments, the sealing structure 430 includes a sealing ring 431 , which is sandwiched between the mounting side surface 4102 and the box body 10 , and the sealing ring 431 is arranged around the through hole 411 .

[0096] The sealing ring 431 may be, but is not limited to, a ring-shaped sealing structure 430 such as a silicone sealing ring 431 , a rubber sealing ring 431 , or a foam sealing ring 431 .

[0097] The sealing ring 431 is clamped between the mounting side 4102 and the box body 10. Optionally, the sealing ring 431 can be bonded to the mounting side 4102 so that the orifice end of the through hole 411 is located within the inner ring area of ​​the sealing ring 431. Alternatively, a mounting ring groove surrounding the orifice end of the through hole 411 can be opened on the mounting side 4102, and the sealing ring 431 can be accommodated in the mounting ring groove to achieve assembly.

[0098] The number of the sealing rings 431 may be one or more than one. When the number of the sealing rings 431 is more than one, the sealing rings 431 may be sequentially sleeved to achieve multiple sealing protections for the through hole 411 .

[0099] In this way, by setting a sealing ring 431 between the installation side 4102 and the box body 10, when the box body 410 is installed on the box body 10, the sealing ring 431 can be clamped between the installation side 4102 and the box body 10, so that the sealing ring 431 and the box body 10 can form a sealing protection for the through hole 411, effectively improving the sealing performance of the accommodating cavity 4101.

[0100] Please refer to Figure 2 , Figures 4 to 6 In some embodiments, the sealing ring 431 includes a main body 4311 and a protruding portion 4312. The main body 4311 is clamped between the installation side 4102 and the box body 10. The main body 4311 is arranged around the hole end of the through hole 411. The protruding portion 4312 is connected to the main body 4311 and inserted into the through hole 411.

[0101] It can be understood that the main body 4311 can be a ring-shaped structure, and the main body 4311 is used to surround the opening end of the through hole 411 and be clamped between the installation side 4102 and the box body 10 to achieve sealing protection for the through hole 411.

[0102] The protruding portion 4312 is connected to the main body 4311 . Optionally, the protruding portion 4312 may be bonded to the main body 4311 , or the protruding portion 4312 and the main body 4311 may be integrally injection molded.

[0103] The protruding portion 4312 may be, but is not limited to, a protruding block, a protruding rod, a protruding plate, a protruding ring, etc.; the protruding portion 4312 is inserted into the through hole 411, so that when the electrical connection structure 30 is inserted into the through hole 411, the protruding portion 4312 is located between the electrical connection structure 30 and at least one side wall of the inner wall of the through hole 411, and the protruding portion 4312 can separate the electrical connection structure 30 and the inner wall of the through hole 411, thereby reducing the probability that the insulating sleeve on the electrical connection structure 30 is worn by the hole end or the inner wall of the through hole 411 during the process of inserting the electrical connection structure 30 into the through hole 411, thereby reducing the risk of leakage of the electrical connection structure 30.

[0104] For example, in some specific embodiments, the main body 4311 can be a ring-shaped sealing rubber, and the protruding portion 4312 can be a rubber sheet integrally formed on the main body 4311, and in the direction of gravity, the rubber sheet is located below the inner ring of the main body 4311; thus, when the sealing ring 431 is assembled on the box body 410, the main body 4311 is bonded and fixed to the installation side 4102, and the rubber sheet of the protruding portion 4312 extends into the through hole 411 and shields and protects the portion of the inner wall of the through hole 411 that is located below in the direction of gravity. Thus, in the process of inserting and assembling the electrical connection structure 30 into the through hole 411, the connecting copper plate will not contact the inner wall of the through hole 411, and the edges and corners formed between the inner wall of the through hole 411 and the installation side 4102, thereby effectively reducing the probability of the insulating sleeve on the electrical connection structure 30 being worn by the hole mouth end or the inner wall of the through hole 411.

[0105] Please refer to Figure 2 , Figure 4 and Figure 6 In some embodiments, the protruding portion 4312 is ring-shaped and is located between the electrical connection structure 30 and the inner wall of the through hole 411 .

[0106] It can be understood that the protrusion 4312 is set as an annular structure, so that when the main body 4311 is fixed to the installation side 4102 of the box body 410, the protrusion 4312 can be inserted into the inside of the through hole 411, and the annular protrusion 4312 can protect the inner wall of the through hole 411 in the entire circumferential direction, so that when the electrical connection structure 30 is inserted into the through hole 411 for assembly, the electrical connection structure 30 will not contact the inner wall of the through hole 411 due to the protection of the annular protrusion 4312; and the edges and corners formed between the inner wall of the through hole 411 and the installation side 4102 are also protected by the protrusion 4312 and the main body 4311, thereby effectively reducing the probability of the insulating sleeve on the electrical connection structure 30 being worn by the hole end or the inner wall of the through hole 411.

[0107] Please refer to Figure 2 , Figure 4 and Figure 6 In some embodiments, the protruding portion 4312 passes through the through hole 411 and extends into the accommodating cavity 4101 .

[0108] It can be understood that since the protrusion 4312 extends to the interior of the accommodating chamber 4101, the protrusion 4312 can also cover and protect the hole end of the through hole 411 located on the side of the accommodating chamber 4101, and the edges and corners formed by the inner wall of the through hole 411 and the inner wall of the accommodating chamber 4101 can also be blocked by the protrusion 4312; therefore, during the process of the electrical connection structure 30 being inserted into the through hole 411 for assembly, the probability of the connecting copper plate contacting the edges and corners formed by the inner wall of the through hole 411 and the inner wall of the accommodating chamber 4101 is low, thereby reducing the probability of the insulating sleeve on the electrical connection structure 30 being worn and scratched by the hole end located on the side of the accommodating chamber 4101.

[0109] Please refer to Figure 7 In some embodiments, the mounting side surface 4102 is connected to the inner wall of the through hole 411 via a first chamfered surface 412 .

[0110] The first chamfered surface 412 refers to a curved surface or a slope formed by machining the corner formed by connecting the mounting side surface 4102 and the inner wall of the through hole 411 .

[0111] In this way, the installation side 4102 is connected to the inner wall of the through hole 411 through the first chamfered surface 412. When the electrical connection structure 30 is inserted into the through hole 411 for assembly, the probability of scratching the insulating sleeve on the electrical connection structure 30 due to the edges formed between the installation side 4102 and the inner wall of the through hole 411 can be reduced, thereby reducing the probability of leakage of the electrical connection structure 30.

[0112] Please refer to Figure 7 In some embodiments, the inner wall surface of the accommodating cavity 4101 and the inner wall of the through hole 411 are connected via a second chamfered surface (not shown in the figure).

[0113] Among the inner wall surfaces of the accommodating cavity 4101 , the wall surface on one side that can be directly connected to the inner wall of the through hole 411 is the inner wall surface on one side where the through hole 411 is opened.

[0114] The second chamfered surface refers to a curved surface or a slope formed by machining the corner formed by connecting the inner wall surface of the accommodating cavity 4101 with the inner wall of the through hole 411 .

[0115] In this way, the inner wall surface of the accommodating cavity 4101 and the inner wall of the through hole 411 are connected by the second chamfered surface. When the electrical connection structure 30 is inserted into the through hole 411 for assembly, the probability of scratching the insulating sleeve on the electrical connection structure 30 due to the edges formed between the inner wall surface of the accommodating cavity 4101 and the inner wall of the through hole 411 can be reduced, thereby reducing the probability of leakage of the electrical connection structure 30.

[0116] Please refer to Figures 2 to 4 In some embodiments, a mounting portion 413 is provided on the box body 410 , and the mounting portion 413 is connected to the box body 10 .

[0117] The mounting portion 413 is used to be connected to the box body 10 , so that the box body 410 is connected to the box body 10 through the mounting portion 413 .

[0118] Optionally, the mounting portion 413 includes but is not limited to a mounting bracket, a mounting plate, a mounting block, a mounting beam and other structural members; the number of the mounting portion 413 can be one or more. The mounting portion 413 can be fixedly connected to the box body 10 by screwing, clamping, welding and other methods.

[0119] The mounting portion 413 can be fixedly connected to the box body 410 by welding, screwing, clamping, integral molding, etc.; it can be understood that the mounting portion 413 can be set at any position of the box body 410.

[0120] For example, in some specific embodiments, the mounting portion 413 may include a mounting block with a mounting hole. The number of the mounting blocks may be multiple, for example, four. The four mounting blocks are respectively formed on the end surfaces of the box body 410 that intersect at the mounting side surface 4102. Fasteners (such as bolts, screws, etc.) are passed through the mounting holes and connected to the corresponding hole structures of the box body 10 to achieve the purpose of fixing the box body 410 to the box body 10 through the mounting blocks.

[0121] Please refer to Figures 2 to 4 In some embodiments, the mounting portion 413 has a connecting surface 4131 facing the box body 10 , and the connecting surface 4131 is flush with the mounting side surface 4102 .

[0122] It can be understood that the connection surface 4131 refers to the side surface of one end of the mounting portion 413 facing the box body 10 when the mounting portion 413 is connected to the box body 10 .

[0123] With such arrangement, when the box body 410 is installed on the case body 10 through the installation portion 413, the connection surface 4131 of the installation portion 413 will abut against the case body 10 and realize a fixed connection, thereby, the installation side surface 4102 can be simultaneously abutted against the surface installed on the case body 10 to ensure the abutment fit of the installation side surface 4102 against the case body 10, and the clamping effect of the sealing ring 431 between the installation side surface 4102 and the case body 10 is better, thereby improving the sealing and protection effect of the sealing ring 431 on the through hole 411.

[0124] Please refer to Figure 3 and Figure 4In some embodiments, the box body 410 includes a shell 414 and an upper cover 415, the shell 414 is formed with a accommodating cavity 4101 having an opening 4151, the upper cover 415 is connected to the shell 414 and covers the opening 4151; the mounting portion 413 is disposed on the shell 414, and the through hole 411 is opened on the shell 414.

[0125] The housing 414 is formed with a receiving cavity 4101 having an opening 4151 ; optionally, the housing 414 may be a hollow structure with an opening 4151 at one end, such as a rectangular shell, a columnar shell, a spherical shell, etc. with an opening 4151 at one end.

[0126] The upper cover 415 is connected to the housing 414 so that the upper cover 415 forms a cover for the opening 4151, thereby forming a sealed protection for the accommodating cavity 4101. It can be understood that the upper cover 415 can be fixedly installed on the housing 414 by fasteners, or the upper cover 415 can also be connected to the housing 414 by a snap-fitting manner.

[0127] Among them, the mounting portion 413 is arranged on the shell 414, and the through hole 411 is opened on the shell 414. When the high-voltage box 400 needs to be maintained, the upper cover 415 can be opened to expose the electrical components 420 inside the accommodating cavity 4101, without removing the shell 414 from the box body 10 and then disassembling and assembling the shell 414 to open the accommodating cavity, which effectively improves the maintenance efficiency and convenience.

[0128] Please refer to Figure 2 and Figure 4 In some embodiments, a connecting bracket 440 is disposed in the accommodating cavity 4101 , and the connecting bracket 440 is used to fix the power supply connection structure 30 and the conductive structure of the electrical component 420 .

[0129] The connecting bracket 440 may be, but is not limited to, an insulating supporting structure such as an injection-molded bracket or a rubber bracket; the number of the connecting bracket 440 may be one or more. The connecting bracket 440 may be fixed to the inner side of the accommodating cavity 4101 by screwing, bonding, or clamping.

[0130] It can be understood that the connecting bracket 440 can be used to fix the power connection structure 30 and the conductive structure (such as a copper busbar structure) of the electrical component 420, for example, the electrical connection structure 30 and the conductive structure are overlapped on the connecting bracket 440, and then the electrical connection structure 30 and the conductive structure are fixed by bolts to achieve contact connection between the electrical connection structure 30 and the conductive structure; or, the connecting bracket 440 can also be used to support and fix the electrical component 420.

[0131] In this way, by setting a connecting bracket 440 in the accommodating cavity 4101, the electrical connection structure 30 of the battery 100 and the conductive structure of the electrical component 420 can be fixed on the connecting bracket 440 and form a contact connection. The electrical connection is achieved by fixing and contacting, which effectively improves the stability and reliability of the electrical connection.

[0132] Please refer to Figures 2 to 4 In some embodiments, the number of the through hole 411 is one or two.

[0133] When the number of the through hole 411 is one, the electrical connection structure 30 may include a connecting copper busbar, and the positive copper busbar 31 and the negative copper busbar 32 of the connecting copper busbar may both pass through the through hole 411 to electrically connect the electrical component 420 inside the accommodating cavity 4101 .

[0134] When the number of through holes 411 is two, the electrical connection structure 30 may include a connecting copper bar, and the positive copper bar 31 and the negative copper bar 32 of the connecting copper bar may be simultaneously penetrated in one of the through holes 411, so that a through hole 411 with a shorter required wiring path may be selected for use. Alternatively, the positive copper bar 31 and the negative copper bar 32 of the connecting copper bar may be penetrated in different through holes 411, respectively, so that the orifice size of a single through hole 411 can be reduced, thereby reducing the impact of an excessively large orifice on the overall structural strength of the high-voltage box 400.

[0135] For example, in some specific embodiments, the high-voltage box 400 includes a box body 410, the box body 410 includes an upper cover 415 and a shell 414, the shell 414 is formed with a accommodating cavity 4101 with an opening 4151, the upper cover 415 is connected to the shell 414 and covers the opening 4151; the side of the shell 414 facing the box body 10 of the battery 100 is the installation side 4102, the shell 414 is provided with a rectangular through hole 411 on the installation side 4102, and a sealing ring 431 is bonded to the installation end side, and the sealing ring 431 is arranged around the through hole 411; the shell 414 is integrally formed with a plurality of mounting parts 413 on the opposite end sides intersecting the installation side 4102, such as a mounting block, the connecting surface 4131 of the mounting block is flush with the mounting side 4102, and the mounting block is provided with a mounting hole.

[0136] During assembly, the shell 414 can be installed on the outer surface of the box body 10 through the mounting block, so that the electrical connection structure 30 can pass through the through hole 411 and extend into the accommodating cavity 4101, so as to achieve contact and connection with the conductive structure of the electrical component 420; use screws to pass through the mounting holes of the mounting block and tighten them to the box body 10. At this time, the connecting surface 4131 of the mounting block and the mounting side surface 4102 flush with the connecting surface 4131 will be against the outer surface of the box body 10, so that the mounting side surface 4102 and the box body 10 will clamp the sealing ring 431, so that the sealing ring 431 can form a sealing protection for the through hole 411 between the mounting side surface 4102 and the box body 10.

[0137] Please refer to Figures 2 to 4 In the second aspect, the embodiment of the present application further provides a battery 100, including a box body 10, a battery cell 20, an electrical connection structure 30 and a high-voltage box 400 as described above, wherein the battery cell 20 is accommodated in the box body 10, and the box body 410 of the high-voltage box 400 is arranged on the outer surface of the box body 10, and the electrical connection structure 30 is electrically connected to the battery cell 20, and the electrical connection structure 30 is penetrated through the through hole 411 and electrically connected to the electrical component 420 in the accommodating cavity 4101.

[0138] The battery 100 provided in the embodiment of the present application includes the above-mentioned high-voltage box 400. Since a through hole 411 is provided on the box body 410 of the high-voltage box 400, the electrical connection structure 30 of the battery 100 can be passed through the through hole 411 and extended into the accommodating cavity 4101, so that the electrical connection structure 30 can be directly connected to the electrical component 420 in the accommodating cavity 4101, which can effectively reduce the probability of connection failure of the high-voltage box 400, thereby effectively improving the stability and reliability of the battery 100.

[0139] Please refer to Figure 1 and Figure 2 In a third aspect, the present application also provides an electric device, including the battery 100 as described above, and the battery 100 is used to provide electric energy. The electric device can be any device or system using the battery 100, such as a vehicle 1000.

[0140] The electric device provided in the embodiment of the present application includes the above-mentioned battery 100. On the basis that the above-mentioned battery 100 has better stability and reliability, the stability and reliability of the electric device are also better.

[0141] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A high voltage box, arranged on a battery box, characterized in that: The high-voltage box includes a box body, which is connected to the box body. A receiving cavity for receiving electrical components is formed inside the box body. A through hole connected to the receiving cavity is opened on the box body, and the through hole is used for inserting the electrical connection structure of the battery.

2. The high voltage box according to claim 1, characterized in that: The box body has an installation side surface, the installation side surface faces the box body, and the through hole is opened on the installation side surface.

3. The high voltage box according to claim 2, characterized in that: At least a portion of the installation side surface is abutted against the wall surface of the box body, and the through hole is opened in the portion of the installation side surface abutted against the wall surface of the box body.

4. The high voltage box according to claim 2 or 3, characterized in that: The high-voltage box further comprises a sealing structure, which is arranged on the box body and is used to seal the through hole.

5. The high voltage box according to claim 4, characterized in that: The sealing structure comprises a sealing ring, which is sandwiched between the mounting side surface and the box body, and is arranged around the orifice end of the through hole.

6. The high voltage box according to claim 5, characterized in that: The sealing ring includes a main body and a protruding portion, the main body is clamped between the installation side and the box body, the main body is arranged around the through hole, the protruding portion is connected to the main body, and the protruding portion is inserted into the through hole.

7. The high voltage box according to claim 6, characterized in that: The protruding portion is ring-shaped and is located between the electrical connection structure and the inner wall of the through hole.

8. The high voltage box according to claim 6 or 7, characterized in that: The protruding portion passes through the through hole and extends into the accommodating cavity.

9. The high voltage box according to any one of claims 2 to 8, characterized in that: The mounting side surface is connected to the inner wall of the through hole via a first chamfered surface.

10. The high voltage box according to claim 9, characterized in that: The inner wall surface of the accommodating cavity and the inner wall of the through hole are connected via a second chamfered surface.

11. The high voltage box according to any one of claims 2 to 10, characterized in that: The box body is provided with a mounting portion, and the mounting portion is connected to the box body.

12. The high voltage box according to claim 11, characterized in that: The mounting portion has a connecting surface facing the box body, and the connecting surface is flush with the mounting side surface.

13. The high voltage box according to claim 11 or 12, characterized in that: The box body comprises an outer shell and an upper cover, wherein the outer shell is formed with the accommodating cavity having an opening, and the upper cover is connected to the outer shell and covers the opening; the mounting portion is arranged on the outer shell, and the through hole is opened on the outer shell.

14. The high voltage box according to any one of claims 1 to 13, characterized in that: A connecting bracket is arranged in the accommodating cavity, and the connecting bracket is used for fixedly connecting the electrical connecting structure and the conductive structure of the electrical component.

15. The high voltage box according to any one of claims 1 to 14, characterized in that: The number of the through holes is one or two.

16. A battery, characterized in that: It includes a box body, a battery cell, an electrical connection structure and a high-voltage box as described in any one of claims 1 to 15, wherein the battery cell is accommodated in the box body, the box body of the high-voltage box is arranged on the outer surface of the box body, the electrical connection structure is electrically connected to the battery cell, and the electrical connection structure is penetrated through the through hole and electrically connected to the electrical components in the accommodating cavity.

17. An electrical equipment, characterized in that: Comprising a battery as claimed in claim 16, the battery is used to provide electrical energy.

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