Battery device, power distribution assembly and electric equipment

Abstract

The invention relates to the technical field of vehicles, in particular to a battery device, a power distribution assembly and electric equipment. The battery device comprises a power distribution assembly, the power distribution assembly comprises a pre-charging resistor, a pre-charging relay and an installation assembly, the installation assembly comprises a first component and a second component, the first component and the second component are connected, one of the first component and the second component is used for installing the pre-charging relay, and the other one is used for installing the pre-charging resistor. According to the battery device, the power distribution assembly comprises the pre-charging resistor, the pre-charging relay and the installation assembly, the installation assembly comprises the first component and the second component which are connected with each other, the first component is arranged below the second component and used for installing the pre-charging resistor, and the second component is used for installing the pre-charging relay. The pre-charging relay and the pre-charging resistor can be installed at the same time through the two parts of one installation assembly, and the space in the installation cavity is fully utilized.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a battery device, a power distribution component and an electrical device. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] As new energy technologies become increasingly mature, electrical equipment such as new energy vehicles are gradually coming into the public eye.

[0004] New energy vehicles are usually provided with a battery device, which includes a power distribution component. The power distribution component is arranged inside or outside the battery device, wherein the power distribution component includes a shell, a pre-charging resistor and a pre-charging relay, etc., wherein an installation cavity for accommodating a mounting seat, a pre-charging resistor and a pre-charging relay is provided in the shell, and full utilization of the space in the installation cavity is impossible. Summary of the invention

[0005] In view of the above problems, the embodiments of the present application provide a battery device, a power distribution assembly and an electrical device, which solve the problem in the prior art that the power distribution assembly cannot fully utilize the space in the installation cavity.

[0006] A first aspect of an embodiment of the present application provides a battery device, the battery device comprising a power distribution component, the power distribution component comprising: Pre-charge resistance; Pre-charge relay; and The installation component includes a first component and a second component, wherein the first component and the second component are connected, the first component is arranged below the second component and is used to install a pre-charging resistor, and the second component is used to install a pre-charging relay.

[0007] The battery device of the embodiment of the present application is provided with a power distribution component including a pre-charging resistor, a pre-charging relay and an installation component, wherein the installation component includes a first component and a second component which are connected to each other, wherein the first component is arranged below the second component and is used for installing the pre-charging resistor, and the second component is used for installing the pre-charging relay. Then, the pre-charging relay and the pre-charging resistor can be installed simultaneously through two parts of one installation component, thereby making full use of the space in the installation cavity.

[0008] In some embodiments of the present application, the first component includes a first mounting seat, the first mounting seat is provided with a receiving cavity, and the pre-charging resistor is placed in the receiving cavity.

[0009] In the embodiment of the present application, a first mounting seat is provided, and a receiving cavity is provided on the first mounting seat. The pre-charging resistor is placed in the receiving cavity. Then, the pre-charging resistor can be placed in the receiving cavity to protect the pre-charging resistor.

[0010] In some embodiments of the present application, the first mounting seat includes a first end plate, a second end plate and a connecting portion connecting the first end plate and the second end plate, the first end plate, the second end plate and the connecting portion enclose at least a portion of the accommodating cavity, the second end plate is provided with a first electrical connector, the first electrical connector is respectively electrically connected to the pre-charging resistor and the pre-charging relay, and the first direction is the length direction of the pre-charging resistor.

[0011] In an embodiment of the present application, a first mounting seat includes a first end plate and a second end plate arranged opposite to each other along a first direction, and a connecting portion connecting the first end plate and the second end plate, wherein the first end plate, the second end plate and the connecting portion enclose at least a portion of an accommodating cavity, and a first electrical connector is provided on the second end plate, and the first electrical connector is electrically connected to the pre-charging resistor and the pre-charging relay respectively. In this way, an external wiring harness is not required, and the electrical connection between the pre-charging resistor and the pre-charging relay can be achieved only through the first electrical connector.

[0012] In some embodiments of the present application, at least a portion of the first electrical connector protrudes from a surface of the second end plate facing the first end plate, and the protruding direction is toward the accommodating cavity.

[0013] In the embodiments of the present application, by making at least a portion of the first electrical connector protrude from the surface of the second end plate facing the first end plate, and the protruding direction is toward the accommodating cavity, the first electrical connector can be conveniently electrically connected to the pre-charging resistor, thereby reducing the probability of the surface of the second end plate interfering with the pre-charging resistor.

[0014] In some embodiments of the present application, the first electrical connector includes a first section, the first section protrudes from the surface of the second end plate facing the first end plate, and the spacing distance between the surface of the first section facing the first end plate and the surface of the second end plate facing the accommodating cavity is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0015] In an embodiment of the present application, a first segment is provided, wherein the first segment protrudes from a surface of the second end plate facing the first end plate, and a spacing distance between a surface of the first segment facing the first end plate and a surface of the second end plate facing the accommodating cavity is greater than or equal to 0.5 mm and less than or equal to 1.5 mm. The first segment can be electrically connected to the pre-charging resistor, thereby reducing the probability of the surface of the second end plate interfering with the pre-charging resistor, and can reduce the cost occupied by the first segment, thereby reducing the production cost of the power distribution component.

[0016] In some embodiments of the present application, the first electrical connector further includes a second segment connected to the first segment, the second segment is arranged at an angle to the first segment, and the second segment is electrically connected to the pre-charging relay.

[0017] In an embodiment of the present application, the first electrical connector also includes a second segment connected to the first segment, wherein the second segment is arranged at an angle to the first segment, and the second segment is electrically connected to the pre-charging relay. Then, the electrical connection between the pre-charging resistor and the pre-charging relay can be achieved through the second segment and the first segment arranged at an angle, and an external wiring harness is not required to directly achieve the electrical connection between the pre-charging resistor and the pre-charging relay.

[0018] In some embodiments of the present application, the connecting portion includes a first connecting plate, the first connecting plate is connected to the first end plate and the second end plate respectively, and the second component is provided on the first connecting plate.

[0019] In an embodiment of the present application, a first connecting plate is provided, wherein the first connecting plate is connected to the first end plate and the second end plate respectively, and a second component is provided on the first connecting plate. The second component can be supported and installed by the first connecting plate, so that the second component can be placed above the first component.

[0020] In some embodiments of the present application, the first mounting seat also includes a first plate body connected to the first connecting plate, the first electrical connector passes through the first plate body, and a portion of the second section body is arranged outside the first plate body and is electrically connected to the pre-charging relay.

[0021] In the embodiment of the present application, a first plate body is set, the first plate body is connected to a first connecting plate, and a first electrical connector passes through the first plate body, and a portion of the second segment body is arranged outside the first plate body and electrically connected to the pre-filling relay, so that the second segment body can pass through the first plate body, and a portion of the second segment body is arranged outside the first plate body and electrically connected to the pre-filling relay, thereby facilitating the electrical connection between the second segment body and the pre-filling relay.

[0022] In some embodiments of the present application, the connecting portion further includes a second connecting plate, the second connecting plate is respectively connected to the first end plate and the second end plate, and the second connecting plate and the first connecting plate are arranged opposite to each other.

[0023] In the embodiment of the present application, a second connecting plate is further provided, and the second connecting plate is respectively connected to the first end plate and the second end plate, and the second connecting plate and the first connecting plate are arranged relative to each other. The second connecting plate can be used to place the pre-charging resistor during the installation process, thereby facilitating the installation of the second connecting plate.

[0024] In some embodiments of the present application, the power distribution assembly also includes a shell, an installation cavity is provided in the shell, and a pre-charging resistor, a pre-charging resistor and an installation assembly are provided in the installation cavity; the connecting part also includes a third connecting plate, and the third connecting plate and the first connecting plate are respectively arranged on opposite sides of the second connecting plate, wherein the third connecting plate is respectively connected to the first end plate and the second end plate, and the third connecting plate is connected to the shell.

[0025] The embodiment of the present application is provided with a shell, and an installation cavity is provided in the shell, and a pre-charging resistor, a pre-charging resistor and an installation component are provided in the installation cavity; the connecting part also includes a third connecting plate, and the third connecting plate and the first connecting plate are respectively provided on opposite sides of the second connecting plate, wherein the third connecting plate is respectively connected to the first end plate and the second end plate, and an installation space is formed between the third connecting plate and the second connecting plate, wherein the third connecting plate is used to connect to the shell, and the installation component can be fixed in the installation cavity by the connection between the third connecting plate and the shell, thereby realizing the fixation of the pre-charging resistor and the pre-charging resistor.

[0026] In some embodiments of the present application, the first component also includes a second electrical connector and a second plate body, and the second electrical connector is respectively connected to the pre-charging resistor and the second plate body, wherein the second plate body is arranged on the side of the first end plate away from the second end plate and is connected to the first end plate.

[0027] In an embodiment of the present application, a second electrical connector and a second plate are provided, and the second electrical connector is connected to the pre-charging resistor and the second plate respectively, wherein the second plate is provided on a side of the first end plate away from the second end plate and is connected to the first end plate, thereby fixing the second electrical connector and realizing connection between the pre-charging resistor and other components through the second electrical connector.

[0028] In some embodiments of the present application, a first limiting structure is provided on one of the second plate body and the second electrical connector, and a second limiting structure is provided on the other of the second plate body and the second electrical connector, and the first limiting structure and the second limiting structure cooperate in limiting manner.

[0029] In the embodiment of the present application, a first limiting structure is provided on one of the second plate body and the second electrical connector, and a second limiting structure is provided on the other of the second plate body and the second electrical connector. The first limiting structure and the second limiting structure cooperate in limiting positions, and the positioning assembly between the second plate body and the second electrical connector can be achieved through the limiting cooperation between the first limiting structure and the second limiting structure.

[0030] In some embodiments of the present application, the first limiting structure includes one of a limiting hole and a limiting member, and the second limiting structure includes the other of the limiting hole and the limiting member, and the limiting hole and the limiting member are matched in a concave-convex manner.

[0031] In the embodiment of the present application, the first limiting structure includes one of the limiting hole and the limiting member, and the second limiting structure includes the other of the limiting hole and the limiting member, and the limiting hole and the limiting member are matched in a concave and convex manner. The limiting function can be achieved by the structure of the limiting hole and the limiting member being matched in a concave and convex manner. The structure is simple and easy to implement.

[0032] In some embodiments of the present application, the first component and the second component are an integral structure.

[0033] In the embodiment of the present application, by configuring the first component and the second component as an integrated structure, the process of installing the component can be simplified and the cost of installing the component can be reduced.

[0034] A second aspect of an embodiment of the present application provides a power distribution component, the power distribution component comprising: Pre-charge resistance; Pre-charge relay; and The installation component includes a first component and a second component, wherein the first component and the second component are connected, one of the first component and the second component is used to install a pre-charging relay, and the other is used to install a pre-charging resistor.

[0035] A third aspect of the embodiments of the present application provides an electrical device, comprising the battery device mentioned in the above embodiments, and the battery device is used to supply power to the electrical device.

[0036] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the accompanying drawings to represent the same components. In the accompanying drawings: Figure 1 A schematic diagram of the structure of an electrical device provided in some embodiments of the present application; Figure 2 A schematic diagram of the structure of a battery device provided in some embodiments of the present application; Figure 3 A partial structural schematic diagram of a power distribution assembly provided in some embodiments of the present application; Figure 4 for Figure 3 A schematic diagram of the structure of the power distribution assembly shown in FIG. 1 at a second viewing angle; Figure 5 for Figure 4 A schematic diagram of the structure in which the pre-charging resistor of the power distribution assembly is located outside the accommodating cavity; Figure 6 for Figure 5 An exploded schematic diagram of the power distribution assembly shown in FIG. Figure 7 for Figure 6 A partial enlarged structural diagram of the power distribution component at position A shown in FIG. Figure 8 for Figure 6 A partial enlarged structural diagram of the power distribution assembly at position B shown in FIG. Fig. 9 for Figure 4 A schematic cross-sectional view of the power distribution assembly along the CC section shown in FIG. Fig.10 for Fig. 9 A partial enlarged structural diagram of the power distribution assembly at position D shown in FIG. Fig.11 for Fig. 9 A partial enlarged structural diagram of the power distribution component at position E shown in FIG. Fig.12 for Figure 4 A schematic diagram of the structure of the power distribution assembly shown in FIG. 1 at a second viewing angle; Fig.13 for Fig.12 A partial enlarged structural diagram of the power distribution assembly at position F shown in FIG. Fig.14 A schematic diagram of the structure of a power distribution component provided for some embodiments of the present application.

[0038] The reference numerals are as follows: 100, battery device; 200, electrical equipment; 300, controller; 400, motor; 10. Battery cells; 20. Box assembly; 21. First box; 22. Second box; 23. Accommodating chamber; 30. Power distribution assembly; 31. Pre-charging resistor; 32. Pre-charging relay; 33. Mounting assembly; 331. First component; 3311. First mounting seat; 3312. Accommodating cavity; 3313. First end plate; 33131. Opening; 3314. Second end plate; 3315. Connecting portion; 33151. First connecting plate; 33152. Second connecting plate; 33153. Third connecting plate; 33154. Fourth connecting plate; 33155. Notch; 3316. First plate body; 3317. Second plate body; 3318. Mounting space; 332. Second component; 3321. Foolproof structure; 333. First electrical connector; 3331. First segment body; 3332. Second segment body; 334. Second electrical connector; 335. Stopper; 336. Stopper hole; 34. Housing; 341. Mounting cavity; 35. Bolt; XX, length direction; YY, width direction; ZZ, vertical direction; T1, a distance between a surface of the first segment body facing the first end plate and a surface of the second end plate facing the accommodating cavity; T2: the length of the second section outside the first section. DETAILED DESCRIPTION

[0039] The following embodiments of the technical solution of the present application will be described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0042] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0043] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0044] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0045] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial" and "circumferential" etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0046] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected" and "fixed" 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, and 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 the embodiments of the present application can be understood according to the specific circumstances.

[0047] At present, from the perspective of market development, the application of battery devices is becoming more and more extensive. Battery devices 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 battery devices, the market demand is also constantly expanding.

[0048] The battery device involved in the embodiment of the present application can be used in, but not limited to, electrical equipment such as vehicles, ships or aircraft. The battery device comprising the battery cells, battery devices, etc. involved in the present application can be used.

[0049] In the embodiments of the present application, the electrical equipment using the battery device as the power source may be, but is not limited to, mobile phones, tablets, laptop computers, electric toys, electric tools, battery cars, electric cars, ships, spacecraft, etc. Among them, the electric toys may include fixed or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and the spacecraft may include airplanes, rockets, space shuttles, and spacecraft, etc.

[0050] It should be understood that the technical solutions described in the embodiments of the present application are not limited to the battery devices and electrical equipment described above, but can also be applied to all batteries including a box and electrical equipment using the battery.

[0051] The battery apparatus mentioned in the embodiments of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly may include multiple battery cells, which are connected in series, in parallel or in mixed connection through a busbar component.

[0052] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells.

[0053] As an example, the battery cell assembly may be a battery module, which is formed by arranging and fixing a plurality of battery cells to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells by a cable tie.

[0054] In some embodiments, the battery device may be a battery pack, which includes a case and one or more battery cell assemblies, wherein the battery cell assemblies are accommodated in the case.

[0055] As an example, the battery cell assembly may be a battery module, and the battery cell assembly may be accommodated in the box by fixing the battery module in the box.

[0056] As an example, the battery cell assembly may also be housed in the case by directly fixing a plurality of battery cells to the case.

[0057] As an example, the box may include a first box and a second box. The first box and the second box are buckled together to form a closed space inside the box to accommodate the battery cell assembly. The closed here means covered or closed, which can be sealed or unsealed. The first box can be a top cover or a bottom plate.

[0058] As an example, the box body may include a top cover, a frame and a bottom plate. The top cover and the bottom plate are respectively connected to the frame, so that a closed space is formed inside the box body to accommodate the battery cell assembly.

[0059] In some embodiments, the box body can be used as a part of the chassis structure of the vehicle. For example, part of the box body can become at least a part of the floor of the vehicle, or part of the box body can become at least a part of the cross beam and longitudinal beam of the vehicle.

[0060] The battery cell includes an electrode assembly and an electrolyte. The electrode assembly is composed of a positive electrode sheet, a negative electrode sheet and a separator. The battery cell mainly relies on the movement of metal ions between the positive electrode sheet and the negative electrode sheet to work. The positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer. The positive electrode active material layer is coated on the surface of the positive electrode current collector. The current collector not coated with the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer. The current collector not coated with the positive electrode active material layer is stacked as a positive electrode tab. Taking lithium-ion batteries as an example, the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobalt oxide, lithium iron phosphate, ternary lithium or lithium manganese oxide. The negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer. The negative electrode active material layer is coated on the surface of the negative electrode current collector. The current collector not coated with the negative electrode active material layer protrudes from the current collector coated with the negative electrode active material layer. The current collector not coated with the negative electrode active material layer is stacked as a negative electrode tab. The material of the negative electrode current collector can be copper, and the negative electrode active material can be carbon or silicon. The material of the isolation film may be PP (polypropylene) or PE (polyethylene), etc. In addition, the electrode assembly may be a winding structure or a stacked structure, but the embodiments of the present application are not limited thereto.

[0061] The technical solutions described in the embodiments of the present application are applicable to various electrical devices that use battery cells, such as mobile phones, portable devices, laptop computers, electric vehicles, electric toys, electric tools, vehicles, ships and spacecraft, for example, spacecraft include airplanes, rockets, space shuttles and spacecraft, etc.

[0062] New energy vehicles are usually provided with a battery device, which includes a power distribution component. The power distribution component is arranged inside or outside the battery device, wherein the power distribution component includes a shell, a pre-charging resistor and a pre-charging relay, etc., wherein an installation cavity for accommodating a mounting seat, a pre-charging resistor and a pre-charging relay is provided in the shell, and full utilization of the space in the installation cavity is impossible.

[0063] In order to solve this problem, an embodiment of the present application proposes a battery device, which includes a power distribution component, the power distribution component includes a pre-charging resistor, a pre-charging relay and an installation component, the installation component includes a first component and a second component, wherein the first component and the second component are connected, one of the first component and the second component is used to install the pre-charging relay, and the other is used to install the pre-charging resistor. The pre-charging relay and the pre-charging resistor can be installed simultaneously through the two parts of one installation component, thereby fully utilizing the space in the installation cavity.

[0064] The battery device in the embodiment of the present application can be used on electrical equipment such as vehicles, and can also be installed on products such as energy storage equipment.

[0065] The structure in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0066] Please refer to Figure 1 , Figure 1 A schematic diagram of the structure of an electric device 200 provided for some embodiments of the present application. The electric device 200 here can be a vehicle, wherein the vehicle can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or an extended-range vehicle, etc. A battery device 100 is arranged inside the vehicle, and the battery device 100 can be arranged at the bottom, head or tail of the vehicle. The battery device 100 can be used to power the vehicle, for example, the battery device 100 can be used as an operating power source for the vehicle. The electric device 200 may also include a controller 300 and a motor 400, and the controller 300 is used to control the battery device 100 to power the motor 400, for example, for the starting, navigation and driving power requirements of the vehicle.

[0067] In some embodiments of the present application, the battery device 100 can not only serve as an operating power source for the electrical device 200, but also serve as a driving power source for the electrical device 200, replacing or partially replacing fuel or natural gas to provide driving power for the electrical device 200.

[0068] like Figure 2 As shown, the battery apparatus 100 (Battery Apparatus) mentioned in the embodiment of the present application may include one or more battery cell assemblies for providing voltage and capacity. The battery cell assembly (Battery Cell Assembly) may include a plurality of battery cells 10, and the plurality of battery cells are connected in series, in parallel or in mixed connection through a busbar component.

[0069] In some embodiments, a battery cell assembly is generally formed by arranging a plurality of battery cells 10 .

[0070] As an example, the battery cell assembly may be a battery module (Battery Module), and the battery module is formed by arranging and fixing a plurality of battery cells 10 to form an independent module. As an example, the battery module may be formed by bundling a plurality of battery cells 10 by a cable tie.

[0071] In some embodiments, Figure 2 As shown, Figure 2 This is a schematic structural diagram of a battery device 100 according to some embodiments of the present application. The battery device 100 may be a battery pack, which includes a box assembly 20 and one or more battery cell assemblies, wherein the battery cell assembly is accommodated in the box assembly 20 .

[0072] As an example, Figure 1 As shown, the box assembly 20 may include a first box 21 and a second box 22. The first box 21 and the second box 22 are buckled together, so that a closed accommodating cavity 23 is formed inside the box assembly 20 to accommodate the battery cell 10. The closed here means covered or closed, which can be sealed or unsealed. The first box 21 is a top cover, and the second box 22 is a bottom plate. Alternatively, the first box 21 is a bottom plate, and the second box 22 is a top cover.

[0073] like Figures 3 to 14 As shown, the battery device 100 includes a power distribution component 30, the power distribution component 30 includes a pre-charging resistor 31, a pre-charging relay 32 and an installation component 33, the installation component 33 includes a first component 331 and a second component 332, wherein the first component 331 and the second component 332 are connected, one of the first component 331 and the second component 332 is used to install the pre-charging relay 32, and the other is used to install the pre-charging resistor 31.

[0074] The power distribution assembly 30 mentioned here is used to control the operation of the high-voltage system in the electrical equipment. The high-voltage system refers to a circuit with a voltage exceeding 60V. The power distribution assembly 30 may be a high-voltage distribution box. The high-voltage distribution box may be responsible for the distribution and management of electric energy in the high-voltage system in the electrical equipment. For example, the high-voltage distribution box may be a high-voltage distribution unit used in a new energy vehicle, and the high-voltage distribution box may also be a battery cut-off unit used in the battery device 100, which is used to control the charging and discharging of the battery device 100.

[0075] The power distribution assembly 30 here can be arranged inside the battery device 100, that is, the power distribution assembly 30 can be arranged inside the accommodating cavity. Alternatively, the power distribution assembly 30 can also be arranged outside the battery device 100, which can occupy more space and facilitate the centralized placement of multiple components of the power distribution assembly 30.

[0076] The pre-charge resistor 31 mentioned here refers to a resistor element deliberately connected in series in the circuit in order to limit the impact of the large current at the moment of power-on on the system in a high-voltage system such as an electric vehicle. The pre-charge relay 32 mentioned here is a relay that can control the switching state of the circuit according to the circuit control signal input. Before the circuit starts working, the pre-charge relay 32 is disconnected, and the circuit is in an open circuit state at this time, and power cannot be supplied, and the capacitor charging current is zero. When the power supply starts working, the control signal pulls the pre-charge relay 32 in, the circuit is in a pass state, and the capacitor can be charged. Normally, the pre-charge resistor 31 and the pre-charge relay 32 are respectively arranged on different mounting seats, and in the present application, by setting the mounting assembly 33, the pre-charge resistor 31 and the pre-charge relay 32 can be installed on the mounting assembly 33 at the same time, so as to realize the centralized placement of the pre-charge resistor 31 and the pre-charge relay 32.

[0077] The battery device 100 of the embodiment of the present application is configured such that the power distribution component 30 includes a pre-charging resistor 31, a pre-charging relay 32 and an installation component 33, wherein the installation component 33 includes a first component 331 and a second component 332 that are connected to each other, wherein one of the first component 331 and the second component 332 is used to install the pre-charging relay 32, and the other is used to install the pre-charging resistor 31. The pre-charging relay 32 and the pre-charging resistor 31 can be installed simultaneously through the two parts of the installation component 33, thereby fully utilizing the space in the installation cavity 341.

[0078] Alternatively, if Figure 3 and Figure 4 As shown, the first component 331 is disposed below the second component 332 and is used to mount the pre-charging resistor 31 .

[0079] exist Figure 3 In the figure, the first component 331 and the second component 332 are arranged in sequence along the ZZ direction, the ZZ direction is the vertical direction of the installation component 33, the XX direction is the length direction of the installation component 33, and the YY direction is the width direction of the installation component 33. The vertical space in the installation cavity 341 can be fully utilized, thereby reducing the horizontal space occupied by the pre-charging resistor 31 and the pre-charging relay 32 installed in the installation cavity 341 respectively.

[0080] In the embodiment of the present application, by arranging the first component 331 below the second component 332 and using it to install the pre-charging resistor 31, it is possible to fully utilize the vertical space in the installation cavity 341 and reduce the horizontal space occupied by the installation component 33; in addition, by placing the pre-charging resistor 31 in the first component 331, the pre-charging resistor 31 can be placed below the pre-charging relay 32, thereby achieving stable installation of the pre-charging resistor 31.

[0081] Alternatively, if Figures 5 to 7 As shown, the first component 331 includes a first mounting seat 3311 , and a receiving cavity 3312 is provided on the first mounting seat 3311 , and the pre-charging resistor 31 is placed in the receiving cavity 3312 .

[0082] The accommodating cavity 3312 here can be a structure approximately cylindrical, which is convenient for matching with the shape of the pre-charging resistor 31. An opening 33131 is provided on one side of the accommodating cavity 3312 to facilitate placing the pre-charging resistor 31 into the accommodating cavity 3312 through the opening 33131.

[0083] In the embodiment of the present application, a first mounting seat 3311 is provided, and a receiving cavity 3312 is provided on the first mounting seat 3311 . The pre-charging resistor 31 is placed in the receiving cavity 3312 , so that the pre-charging resistor 31 can be placed in the receiving cavity 3312 , thereby protecting the pre-charging resistor 31 .

[0084] Alternatively, if Figure 4 As shown, the first mounting seat 3311 includes a first end plate 3313 and a second end plate 3314 arranged opposite to each other along a first direction, and the first mounting seat 3311 also includes a connecting portion 3315 connecting the first end plate 3313 and the second end plate 3314. The first end plate 3313, the second end plate 3314 and the connecting portion 3315 surround at least part of the accommodating cavity 3312, and the second end plate 3314 is provided with a first electrical connector 333, and the first electrical connector 333 is electrically connected to the pre-charging resistor 31 and the pre-charging relay 32 respectively, wherein the first direction here is the length direction of the pre-charging resistor 31, that is, Figure 3 XX direction in the.

[0085] Here, the first end plate 3313 and the second end plate 3314 are respectively arranged at the two ends of the first mounting seat 3311 along the XX direction, and the two ends of the connecting portion 3315 along the XX direction are respectively connected to the first end plate 3313 and the second end plate 3314, and the first end plate 3313, the second end plate 3314 and the connecting portion 3315 surround at least part of the accommodating cavity 3312.

[0086] The first electrical connector 333 here can be made of a conductive material such as copper alloy or aluminum alloy, and can achieve electrical connection between the pre-charging resistor 31 and the pre-charging relay 32.

[0087] In an embodiment of the present application, the first mounting seat 3311 includes a first end plate 3313, a second end plate 3314 and a connecting portion 3315 connecting the first end plate 3313 and the second end plate 3314, wherein the first end plate 3313, the second end plate 3314 and the connecting portion 3315 enclose at least a portion of the accommodating cavity 3312, and the second end plate 3314 is provided with a first electrical connector 333, and the first electrical connector 333 is electrically connected to the pre-charging resistor 31 and the pre-charging relay 32 respectively. Therefore, an external wiring harness is not required, and the electrical connection between the pre-charging resistor 31 and the pre-charging relay 32 is achieved only through the first electrical connector 333.

[0088] Alternatively, if Fig. 9 and Fig.10 As shown, at least part of the first electrical connector 333 protrudes from the surface of the second end plate 3314 facing the first end plate 3313 , and the protruding direction is toward the accommodating cavity 3312 , that is, at least part of the first electrical connector 333 protrudes from the inner surface of the second end plate 3314 .

[0089] Specifically, part of the first electrical connector 333 is embedded in the second end plate 3314 , and part of the first electrical connector 333 is located outside the second end plate 3314 , so as to facilitate electrical connection between the first electrical connector 333 and the pre-charging resistor 31 .

[0090] In the embodiment of the present application, by making at least a portion of the first electrical connector 333 protrude from the surface of the second end plate 3314 facing the first end plate 3313, with the protruding direction being toward the accommodating cavity 3312, the first electrical connector 333 can be conveniently electrically connected to the pre-charging resistor 31, thereby reducing the probability of the surface of the second end plate 3314 interfering with the pre-charging resistor 31.

[0091] It should be emphasized that the first electrical connector 333 can reduce the probability of the pre-charging resistor 31 rotating, and the first electrical connector 333 and the mounting assembly 33 can be made in one piece, thereby reducing the number of mounting steps.

[0092] Alternatively, if Fig.10 As shown, the first electrical connector 333 includes a first section 3331, which protrudes from the surface of the second end plate 3314 facing the first end plate 3313, and the spacing distance between the surface of the first section 3331 facing the first end plate 3313 and the surface of the second end plate 3314 facing the first end plate 3313 is T1, and T1 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

[0093] In an embodiment of the present application, a first segment 3331 is provided, wherein the first segment 3331 protrudes from a surface of the second end plate 3314 facing the first end plate 3313, and a spacing distance between a surface of the first segment 3331 facing the first end plate 3313 and a surface of the second end plate 3314 facing the accommodating cavity 3312 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm. Then, the first segment 3331 can be electrically connected to the pre-charging resistor 31, thereby reducing the probability of the surface of the second end plate 3314 interfering with the pre-charging resistor 31, and can reduce the cost occupied by the first segment 3331, thereby reducing the production cost of the power distribution component 30.

[0094] Alternatively, if Fig.10 As shown, the first electrical connector 333 also includes a second segment 3332 connected to the first segment 3331 , the second segment 3332 is arranged at an angle to the first segment 3331 , and the second segment 3332 is electrically connected to the pre-charging relay 32 .

[0095] Specifically, the second segment 3332 and the first segment 3331 can be arranged to intersect with each other, with an angle of 90 degrees or 85 degrees, etc., so that the electrical connection between the pre-charging resistor 31 and the pre-charging relay 32 can be easily achieved through the first electrical connector 333.

[0096] In an embodiment of the present application, the first electrical connector 333 also includes a second segment 3332 connected to the first segment 3331, wherein the second segment 3332 is arranged at an angle to the first segment 3331, and the second segment 3332 is electrically connected to the pre-charging relay 32. Then, the electrical connection between the pre-charging resistor 31 and the pre-charging relay 32 can be achieved through the second segment 3332 and the first segment 3331 arranged at an angle, and the electrical connection between the pre-charging resistor 31 and the pre-charging relay 32 is directly achieved without the need for an external wiring harness.

[0097] Alternatively, if Figure 6 As shown, the connecting portion 3315 includes a first connecting plate 33151 , which is connected to the first end plate 3313 and the second end plate 3314 respectively, and a second component 332 is disposed on the first connecting plate 33151 .

[0098] The first connecting plate 33151 is located on the top of the first component 331 , and the second component 332 can be installed on the upper surface of the first connecting plate 33151 .

[0099] In an embodiment of the present application, a first connecting plate 33151 is provided, wherein the first connecting plate 33151 is connected to the first end plate 3313 and the second end plate 3314 respectively, and a second component 332 is provided on the first connecting plate 33151. The second component 332 can be supported and installed by the first connecting plate 33151, so that the second component 332 can be placed above the first component 331.

[0100] Alternatively, if Fig. 9 and Fig.10 As shown, the first mounting seat 3311 also includes a first plate body 3316, which is connected to the first connecting plate 33151, the first electrical connector 333 passes through the first plate body 3316, and part of the second section 3332 is arranged outside the first plate body 3316 and is electrically connected to the pre-charging relay 32.

[0101] Specifically, the second segment 3332 of the first electrical connector 333 is arranged to penetrate the first plate 3316 along the XX direction, and part of the second segment 3332 is arranged outside the first plate 3316 and is electrically connected to the pre-charging relay 32. The length of the second segment 3332 outside the first plate 3316 is T2, wherein T2 is greater than or equal to 2 mm.

[0102] In the embodiment of the present application, by setting a first plate body 3316, the first plate body 3316 is connected to the first connecting plate 33151, and the first electrical connector 333 passes through the first plate body 3316, and a portion of the second segment 3332 is arranged outside the first plate body 3316 and electrically connected to the pre-filling relay 32, the second segment 3332 can pass through the first plate body 3316, and a portion of the second segment 3332 is arranged outside the first plate body 3316 and electrically connected to the pre-filling relay 32, so that the second segment 3332 can be conveniently electrically connected to the pre-filling relay 32.

[0103] Alternatively, if Figure 4 As shown, the connecting portion 3315 further includes a second connecting plate 33152 , which is connected to the first end plate 3313 and the second end plate 3314 respectively, and the second connecting plate 33152 and the first connecting plate 33151 are arranged opposite to each other.

[0104] The second connecting plate 33152 is horizontally arranged, and the second connecting plate 33152 and the first connecting plate 33151 are arranged in parallel and spaced apart, which can play a temporary supporting role for the pre-charging resistor 31 during the installation of the pre-charging resistor 31 .

[0105] In the embodiment of the present application, a second connecting plate 33152 is further provided, and the second connecting plate 33152 is respectively connected to the first end plate 3313 and the second end plate 3314, and the second connecting plate 33152 and the first connecting plate 33151 are arranged relative to each other. The second connecting plate 33152 can be used to place the pre-charging resistor 31 during the installation process, thereby facilitating the installation of the second connecting plate 33152.

[0106] Alternatively, if Fig.14 As shown, the power distribution assembly 30 also includes a housing 34, and a mounting cavity 341 is provided in the housing 34. A pre-charging resistor 31, a pre-charging relay 32 and a mounting assembly 33 are provided in the mounting cavity 341; Figure 4 and Fig. 9 As shown, the connecting portion 3315 also includes a third connecting plate 33153, and the third connecting plate 33153 and the first connecting plate 33151 are respectively arranged on opposite sides of the second connecting plate 33152, wherein the third connecting plate 33153 is respectively connected to the first end plate 3313 and the second end plate 3314, an installation space 3318 is formed between the third connecting plate 33153 and the second connecting plate 33152, and the third connecting plate 33153 is used to connect to the shell 34.

[0107] The installation space 3318 here refers to the space enclosed by the third connecting plate 33153 and the second connecting plate 33152 , which can provide the space required in the process of installing the bolts 35 .

[0108] The third connecting plate 33153 and the second connecting plate 33152 are arranged in parallel and spaced apart. The third connecting plate 33153 is respectively connected to the first end plate 3313 and the second end plate 3314, and the third connecting plate 33153 can be detachably connected to the shell 34 using bolts 35, so that the installation component 33 can be fixed in the installation cavity 341.

[0109] In the embodiment of the present application, a shell 34 is provided, and an installation cavity 341 is provided in the shell 34, and a pre-charging resistor 31, a pre-charging relay 32 and an installation component 33 are provided in the installation cavity 341; the connecting portion 3315 also includes a third connecting plate 33153, and the third connecting plate 33153 and the first connecting plate 33151 are respectively arranged on opposite sides of the second connecting plate 33152, wherein the third connecting plate 33153 is respectively connected to the first end plate 3313 and the second end plate 3314, and the third connecting plate 33153 is connected to the shell 34, and the installation component 33 can be fixed in the installation cavity 341 by the connection between the third connecting plate 33153 and the shell 34, thereby realizing the fixation of the pre-charging resistor 31 and the pre-charging relay 32.

[0110] Optionally, a notch 33155 is provided on the second connecting plate 33152 , and the notch 33155 is connected to the installation space 3318 , which can play a avoiding role and facilitate the installation of the bolt 35 , thereby realizing a detachable connection between the third connecting plate 33153 and the shell 34 .

[0111] Optionally, the first component 331 further includes a fourth connecting plate 33154 , wherein the fourth connecting plate 33154 connects the first connecting plate 33151 and the second connecting plate 33152 , thereby increasing the supporting strength of the first component 331 and achieving stable fixation of the pre-charging resistor 31 .

[0112] Alternatively, if Figure 6 As shown, the first component 331 also includes a second electrical connector 334 and a second plate 3317, and the second electrical connector 334 is respectively connected to the pre-charging resistor 31 and the second plate 3317, wherein the second plate 3317 is arranged on the side of the first end plate 3313 away from the second end plate 3314 and is connected to the first end plate 3313.

[0113] It should be noted that the second electrical connector 334 here is an L-shaped plate structure, and a conductive component can be arranged in the second plate body 3317 . The second electrical connector 334 is electrically connected to the conductive component in the second plate body 3317 by using bolts 35 .

[0114] In the embodiment of the present application, a second electrical connector 334 and a second plate 3317 are provided, and the second electrical connector 334 is connected to the pre-charging resistor 31 and the second plate 3317 respectively, wherein the second plate 3317 is provided on the side of the first end plate 3313 away from the second end plate 3314 and is connected to the first end plate 3313, thereby fixing the second electrical connector 334 and realizing connection between the pre-charging resistor 31 and other components through the second electrical connector 334.

[0115] Alternatively, if Figure 6 and Figure 7 As shown, a first limiting structure is provided on one of the second plate 3317 and the second electrical connector 334, and a second limiting structure is provided on the other of the second plate 3317 and the second electrical connector 334, and the first limiting structure and the second limiting structure cooperate in limiting manner.

[0116] The first limiting structure and the second limiting structure here can adopt a snap-fit ​​structure, or a matching structure of a locating pin and a locating hole, both of which can achieve the function of limiting matching.

[0117] In the embodiment of the present application, a first limiting structure is provided on one of the second plate body 3317 and the second electrical connector 334, and a second limiting structure is provided on the other of the second plate body 3317 and the second electrical connector 334. The first limiting structure and the second limiting structure cooperate in limiting positions, and the positioning and assembly between the second plate body 3317 and the second electrical connector 334 can be achieved through the limiting cooperation between the first limiting structure and the second limiting structure.

[0118] Alternatively, if Figure 6 and Figure 7 As shown, the first limiting structure includes one of the limiting hole 336 and the limiting member 335, and the second limiting structure includes the other of the limiting hole 336 and the limiting member 335, and the limiting hole 336 and the limiting member 335 are matched in a concave-convex manner.

[0119] It should be noted that the limit member 335 here can be a cylindrical pin structure, and the limit member 335 and the second plate body 3317 adopt an integrally formed structure. For example, the second plate body 3317 and the limit member 335 are formed with other parts of the installation component 33 by an integrated injection molding process, or can also be made by an integrated vacuum forming process.

[0120] In the embodiment of the present application, the first limiting structure includes one of the limiting hole 336 and the limiting member 335, and the second limiting structure includes the other of the limiting hole 336 and the limiting member 335, and the limiting hole 336 and the limiting member 335 are matched in a concave and convex manner. The limiting function can be achieved by the concave and convex matching structure of the limiting hole 336 and the limiting member 335, and the structure is simple and easy to implement.

[0121] It should be emphasized that the cooperation between the limit member 335 and the limit hole 336 can fix the second electrical connector 334. The second electrical connector 334 can reduce the probability of the pre-charging resistor 31 rotating, so that the pre-charging resistor 31 can be stably placed in the accommodating cavity 3312.

[0122] Optionally, the first component 331 and the second component 332 are an integrated structure.

[0123] Here, the first component 331 and the second component 332 are set as an integrated structure, wherein the first component 331 and the second component 332 both have insulation properties and can be made of plastic. Specifically, the first component 331 and the second component 332 can be made into an integrated structure by an integrated injection molding process or an integrated vacuum forming process.

[0124] In the embodiment of the present application, the first component 331 and the second component 332 are configured as an integrated structure, so that the process of installing the component 33 can be simplified and the cost of installing the component 33 can be reduced.

[0125] Alternatively, if Fig.12 and Fig.13 As shown, the second component 332 is provided with a foolproof structure 3321, which can reduce the probability of reverse installation of the pre-filling relay 32. The foolproof structure 3321 here can be implemented by two asymmetric structures, so that the pre-filling relay 32 can only be installed in a predetermined state.

[0126] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below.

[0127] The first aspect of the embodiment of the present application proposes a battery device 100, which includes a power distribution component 30, the power distribution component 30 includes a pre-charging resistor 31, a pre-charging relay 32 and a mounting component 33, and the mounting component 33 includes a first component 331 and a second component 332, wherein the first component 331 and the second component 332 are connected, one of the first component 331 and the second component 332 is used to install the pre-charging relay 32, and the other is used to install the pre-charging resistor 31. Further, the first component 331 is arranged below the second component 332 and is used to install the pre-charging resistor 31. Further, the first component 331 includes a first mounting seat 3311, and the first mounting seat 3311 is provided with a receiving cavity 3312, and the pre-charging resistor 31 is placed in the receiving cavity 3312. Further, the first mounting seat 3311 includes a first end plate 3313 and a second end plate 3314 arranged opposite to each other along a first direction, and a connecting portion 3315 connecting the first end plate 3313 and the second end plate 3314. The first end plate 3313, the second end plate 3314 and the connecting portion 3315 surround at least part of the accommodating cavity 3312. The second end plate 3314 is provided with a first electrical connector 333, which is electrically connected to the pre-charging resistor 31 and the pre-charging relay 32, respectively. The first direction is the length direction of the pre-charging resistor 31. Further, at least part of the first electrical connector 333 protrudes from the surface of the second end plate 3314 facing the first end plate 3313, and the protruding direction is the direction toward the accommodating cavity 3312. Further, the first electrical connector 333 includes a first segment 3331, the first segment 3331 protrudes from the surface of the second end plate 3314 facing the first end plate 3313, and the spacing distance between the surface of the first segment 3331 facing the first end plate 3313 and the surface of the second end plate 3314 facing the accommodating cavity 3312 is greater than or equal to 0.5 mm and less than or equal to 1.5 mm. Further, the first electrical connector 333 also includes a second segment 3332 connected to the first segment 3331, the second segment 3332 is arranged at an angle to the first segment 3331, and the second segment 3332 is electrically connected to the pre-charging relay 32. Further, the connecting portion 3315 includes a first connecting plate 33151, the first connecting plate 33151 is respectively connected to the first end plate 3313 and the second end plate 3314, and the first connecting plate 33151 is provided with a second component 332. Furthermore, the first mounting seat 3311 further includes a first plate body 3316 connected to the first connecting plate 33151, the first electrical connector 333 penetrates the first plate body 3316, and a portion of the second segment 3332 is disposed outside the first plate body 3316 and electrically connected to the pre-charging relay 32. Further, the connecting portion 3315 further includes a second connecting plate 33152, the second connecting plate 33152 is respectively connected to the first end plate 3313 and the second end plate 3314, and the second connecting plate 33152 and the first connecting plate 33151 are disposed opposite to each other.Furthermore, the power distribution component 30 also includes a shell 34, in which an installation cavity 341 is provided, and a pre-charging resistor 31, a pre-charging relay 32 and an installation component 33 are provided in the installation cavity 341; the connecting portion 3315 also includes a third connecting plate 33153, and the third connecting plate 33153 and the first connecting plate 33151 are respectively arranged on opposite sides of the second connecting plate 33152, wherein the third connecting plate 33153 is respectively connected to the first end plate 3313 and the second end plate 3314, and an installation space 3318 is formed between the third connecting plate 33153 and the second connecting plate 33152, and the third connecting plate 33153 is used to be connected to the shell 34. Further, the first component 331 also includes a second electrical connector 334 and a second plate 3317, and the second electrical connector 334 is connected to the pre-charging resistor 31 and the second plate 3317 respectively, wherein the second plate 3317 is arranged on the side of the first end plate 3313 away from the second end plate 3314 and connected to the first end plate 3313. Further, a first limiting structure is provided on one of the second plate 3317 and the second electrical connector 334, and a second limiting structure is provided on the other of the second plate 3317 and the second electrical connector 334, and the first limiting structure and the second limiting structure are limitedly matched. Further, the first limiting structure includes one of the limiting hole 336 and the limiting member 335, and the second limiting structure includes the other of the limiting hole 336 and the limiting member 335, and the limiting hole 336 and the limiting member 335 are concave-convexly matched. Further, the first component 331 and the second component 332 are an integrated structure.

[0128] The above is only a preferred specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A battery device, characterized in that: The battery device includes a power distribution assembly, and the power distribution assembly includes: Pre-charge resistance; Pre-charge relay; and An installation component, the installation component includes a first component and a second component, wherein the first component and the second component are connected, the first component is arranged below the second component and is used to install the pre-charging resistor, and the second component is used to install the pre-charging relay.

2. The battery device according to claim 1, characterized in that The first component includes a first mounting seat, the first mounting seat is provided with a receiving cavity, and the pre-charging resistor is placed in the receiving cavity.

3. The battery device according to claim 2, characterized in that: The first mounting base comprises: A first end plate and a second end plate are arranged opposite to each other along a first direction, and a connecting portion connecting the first end plate and the second end plate, the first end plate, the second end plate and the connecting portion surround at least a portion of the accommodating cavity, a first electrical connector is provided on the second end plate, the first electrical connector is electrically connected to the pre-charging resistor and the pre-charging relay respectively, and the first direction is the length direction of the pre-charging resistor.

4. The battery device according to claim 3, characterized in that: At least a portion of the first electrical connector protrudes from a surface of the second end plate facing the first end plate, and the protruding direction is toward the accommodating cavity.

5. The battery device according to claim 4, characterized in that: The first electrical connector includes a first section, which protrudes from a surface of the second end plate facing the first end plate, and a spacing distance between a surface of the first section facing the first end plate and a surface of the second end plate facing the accommodating cavity is greater than or equal to 0.5 mm and less than or equal to 1.5 mm.

6. The battery device according to claim 5, characterized in that The first electrical connector also includes a second segment connected to the first segment, the second segment is arranged at an angle to the first segment, and the second segment is electrically connected to the pre-charging relay.

7. The battery device according to claim 6, characterized in that: The connecting portion includes a first connecting plate, the first connecting plate is connected to the first end plate and the second end plate respectively, and the second component is disposed on the first connecting plate.

8. The battery device according to claim 7, characterized in that: The first mounting seat also includes: The first plate body is connected to the first connecting plate, the first electrical connector passes through the first plate body, and a portion of the second section body is arranged outside the first plate body and is electrically connected to the pre-charging relay.

9. The battery device according to claim 7, characterized in that: The connecting portion further includes a second connecting plate, the second connecting plate is connected to the first end plate and the second end plate respectively, and the second connecting plate is arranged opposite to the first connecting plate.

10. The battery device according to claim 9, characterized in that The power distribution assembly also includes a shell, a mounting cavity is provided in the shell, and the pre-charging resistor, the pre-charging resistor and the mounting assembly are provided in the mounting cavity; The connecting portion also includes a third connecting plate, and the third connecting plate and the first connecting plate are respectively arranged on opposite sides of the second connecting plate, wherein the third connecting plate is respectively connected to the first end plate and the second end plate, and an installation space is formed between the third connecting plate and the second connecting plate, wherein the third connecting plate is used to be connected to the shell.

11. The battery device according to any one of claims 3 to 10, characterized in that: The first component also includes: A second electrical connector and a second plate body, wherein the second electrical connector is connected to the pre-charging resistor and the second plate body respectively, wherein the second plate body is arranged on a side of the first end plate away from the second end plate and is connected to the first end plate.

12. The battery device according to claim 11, characterized in that A first limiting structure is disposed on one of the second plate body and the second electrical connector, and a second limiting structure is disposed on the other of the second plate body and the second electrical connector. The first limiting structure and the second limiting structure cooperate in limiting manner.

13. The battery device according to claim 12, characterized in that: The first limiting structure includes one of a limiting hole and a limiting member, and the second limiting structure includes the other of the limiting hole and the limiting member, and the limiting hole and the limiting member are matched in a concave-convex manner.

14. The battery device according to any one of claims 1 to 10, characterized in that: The first component and the second component are an integrated structure.

15. A power distribution assembly, characterized in that: The power distribution assembly comprises: Pre-charge resistance; Pre-charge relay; and An installation component, the installation component includes a first component and a second component, wherein the first component and the second component are connected, the first component is arranged below the second component and is used to install the pre-charging resistor, and the second component is used to install the pre-charging relay.

16. An electrical equipment, characterized in that: It comprises the battery device as claimed in any one of claims 1 to 14, wherein the battery device is used to supply power to the electrical device.

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