Power distribution device, battery and electric device

Abstract

A power distribution device (100), a battery and an electrical equipment; the power distribution device (100) comprises a first electrical device (110) and a second electrical device (120): the first electrical device (110) has a first electrical connection structure (111); the second electrical device (120) has a second electrical connection structure (121), and the first electrical connection structure (111) and the second electrical connection structure (121) are arranged at intervals; wherein an insulating part (130) is arranged between the first electrical connection structure (111) and the second electrical connection structure (121).

Description

[0001] This application claims priority to Chinese Patent Application No. 202311040100.2, filed on August 17, 2023, entitled "Power Distribution Device, Battery and Electrical Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of electrical control equipment technology, and in particular to a power distribution device, a battery, and electrical equipment. Background Technology

[0003] With the development of science and technology, more and more electrical devices are using batteries as their power source, and the application of power distribution devices in these devices is also increasing. Power distribution devices are used to manage and distribute power in high-voltage systems within electrical equipment; they can also be used within batteries to control their charging and discharging. The electrical components within a power distribution device typically have electrical connection structures for connecting with other electrical components. However, the compact arrangement of these components, the small spacing between them, and the small spacing between their electrical connection structures lead to poor insulation between the connection structures, affecting the reliability of the power distribution device.

[0004] The statements herein are provided only as background information in connection with this application and do not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this application is to provide a power distribution device, a battery, and electrical equipment, including but not limited to solving the problem of poor insulation between the electrical connection structures of two electrical components affecting the reliability of the power distribution device in related technologies.

[0006] The technical solution adopted in the embodiments of this application is: In a first aspect, a power distribution device is provided, which includes a first electrical component and a second electrical component: the first electrical component has a first electrical connection structure; the second electrical component has a second electrical connection structure, and the first electrical connection structure and the second electrical connection structure are spaced apart; wherein an insulating element is provided between the first electrical connection structure and the second electrical connection structure.

[0007] In the power distribution device of this application embodiment, an insulating element is provided between the first electrical connection structure of the first electrical component and the second electrical connection structure of the second electrical component. The insulating element isolates the first electrical connection structure and the second electrical connection structure, thereby improving the insulation performance between the first electrical connection structure and the second electrical connection structure. This improves the insulation between the electrical connection structures of the two electrical components, reduces the risk of short circuits, and helps to improve the reliability of the power distribution device.

[0008] In one embodiment, the first electrical connection structure and the second electrical connection structure are provided with an insulating element at the position where the distance between them is the shortest.

[0009] By adopting the technical solution of this embodiment, the creepage distance of the first electrical connection structure and the second electrical connection structure is minimized at the shortest distance position. The insulation of the first electrical connection structure and the second electrical connection structure at the shortest distance position is poor, and the short circuit risk is high. However, by setting the insulating component at the shortest distance position of the first electrical connection structure and the second electrical connection structure, the insulation at this position can be effectively improved, the short circuit risk of the electrical connection structure of the two electrical components can be effectively reduced, and the reliability of the power distribution device can be effectively improved.

[0010] In one embodiment, the distance between the first electrical connection structure and the second electrical connection structure at the position where the distance is shortest ranges from 3mm to 9mm.

[0011] By adopting the technical solution of this embodiment, the shortest distance between the first electrical connection structure and the second electrical connection structure is within 3mm to 9mm, which is prone to short circuit. However, the insulating component is set at the shortest distance between the first electrical connection structure and the second electrical connection structure, which can effectively improve the insulation between the first electrical connection structure and the second electrical connection structure, thereby effectively reducing the risk of short circuit. In addition, a larger installation space can be provided for the insulating component between the first electrical connection structure and the second electrical connection structure, so that the insulating component can be set larger, so that the insulating component can better insulate and separate the first electrical connection structure and the second electrical connection structure.

[0012] In one embodiment, the distance between the first electrical connection structure and the second electrical connection structure at the position where the distance is shortest ranges from 3mm to 6mm.

[0013] By adopting the technical solution of this embodiment, the shortest distance between the first electrical connection structure and the second electrical connection structure is within 3mm to 6mm, which makes it easier for a short circuit to occur. The insulating component is set at the shortest distance between the first electrical connection structure and the second electrical connection structure, which can effectively improve the insulation between the first electrical connection structure and the second electrical connection structure, thereby effectively reducing the risk of short circuit. In addition, a larger installation space can be provided for the insulating component between the first electrical connection structure and the second electrical connection structure, so that the insulating component can be set larger, so that the insulating component can better insulate and separate the first electrical connection structure and the second electrical connection structure.

[0014] In one embodiment, the first electrical connection structure includes a first terminal and a first electrical connector, the first electrical connector being electrically connected to the first terminal; the second electrical connection structure includes a second terminal and a second electrical connector, the second electrical connector being electrically connected to the second terminal; when the first electrical connection structure and the second electrical connection structure are located between the first terminal and the second terminal at their shortest distance position, an insulating member is provided between the first terminal and the second terminal; when the first electrical connection structure and the second electrical connection structure are located between the first electrical connector and the second electrical connector at their shortest distance position, an insulating member is provided between the first electrical connector and the second electrical connector.

[0015] By adopting the technical solution of this embodiment, the insulating component is located at the position where the distance between the first electrical connection structure and the second electrical connection structure is shortest. This can effectively improve the insulation of the first electrical connection structure and the second electrical connection structure, thereby effectively reducing the short circuit risk of the first electrical connection structure and the second electrical connection structure and improving the reliability of the power distribution device.

[0016] In one embodiment, the first electrical connection structure includes a first terminal and a first electrical connector, the first electrical connector being electrically connected to the first terminal; the second electrical connection structure includes a second terminal and a second electrical connector, the second electrical connector being electrically connected to the second terminal; an insulating element is provided between the first terminal and the second terminal, and an insulating element is provided between the first electrical connector and the second electrical connector.

[0017] By adopting the technical solution of this embodiment, insulating elements are provided between the first terminal and the second terminal, as well as between the first electrical connector and the second electrical connector. This can effectively insulate and separate the first electrical connection structure and the second electrical connection structure, thereby improving the insulation between the first electrical connection structure and the second electrical connection structure and making the power distribution device more reliable.

[0018] In one embodiment, the first electrical component is a first relay, the first terminal is a connection terminal led out from the contacts of the first relay, and the second electrical component is a second relay, the second terminal is a connection terminal led out from the contacts of the second relay.

[0019] By adopting the technical solution of this embodiment, the insulating component is disposed between the connection terminals led out from the contacts of the first relay and the connection terminals led out from the contacts of the second relay in the power distribution device. This can effectively reduce the short circuit risk of the first relay and the second relay in the power distribution device, thereby effectively reducing the short circuit risk of the power distribution device and improving the reliability of the power distribution device.

[0020] In one embodiment, the power distribution device further includes a mounting base having a first receiving cavity and a second receiving cavity; the first relay further includes a first switching unit electrically connected to a first terminal and exposed within the first receiving cavity; the second relay includes a second switching unit electrically connected to a second terminal and exposed within the second receiving cavity.

[0021] By adopting the technical solution of this embodiment, the first switching unit of the first relay is directly exposed in the first receiving cavity, and the second unit switch of the second relay is directly exposed in the second receiving cavity. In this way, the space occupied by the housing of the first relay and the housing of the second relay can be eliminated in the power distribution device, which is beneficial to improving the structural compactness of the power distribution device and reducing its external size. It is also beneficial to improve the performance of the power distribution device and reduce the manufacturing cost, and to reduce the spacing between the first electrical connection structure and the second electrical connection structure. In addition, the first relay and the second relay are usually the larger components in the power distribution device. Eliminating the housing of the first relay and the housing of the second relay can save a lot of space in the power distribution device, thereby effectively improving the structural compactness of the power distribution device.

[0022] In one embodiment, a first receiving cavity has a first opening, a second receiving cavity has a second opening, the first opening and the second opening are located on the same side of the mounting base, a first terminal protrudes from the first opening, and a second terminal protrudes from the second opening.

[0023] By adopting the technical solution of this embodiment, the first terminal and the second terminal protrude from the first opening and the second opening respectively, which facilitates the electrical connection of the first terminal with the first electrical connector and the electrical connection of the second terminal with the second electrical connector; in addition, the first opening and the second opening are located on the same side of the mounting base, so the first electrical connector and the second electrical connector can be electrically connected on the same side, simplifying the assembly operation of the power distribution device and helping to improve the production efficiency of the power distribution device.

[0024] In one embodiment, when an insulating member is provided between the first terminal and the second terminal, the insulating member located between the first terminal and the second terminal is a first insulating member, and the projection of the first insulating member along a first direction covers the projection of the portion of the first terminal protruding from the first opening along the first direction, the first direction being the distribution direction of the first terminal and the second terminal; and / or, the projection of the first insulating member along the first direction covers the projection of the portion of the second terminal protruding from the second opening along the first direction, the first direction being the distribution direction of the first terminal and the second terminal.

[0025] By adopting the technical solution of this embodiment, the first insulating member can effectively insulate and separate the first terminal and the second terminal, resulting in better insulation between the first terminal and the second terminal, a lower risk of short circuit, and improved reliability of the power distribution device.

[0026] In one embodiment, when the insulating member is provided between the first terminal and the second terminal, the insulating member located between the first terminal and the second terminal is a first insulating member, which protrudes relative to the first terminal in a second direction, and the second direction intersects with the first direction, which is the distribution direction of the first terminal and the second terminal; and / or, in the second direction, the first insulating member protrudes relative to the second terminal, and the second direction intersects with the first direction, which is the distribution direction of the first terminal and the second terminal.

[0027] By adopting the technical solution of this embodiment, the creepage distance between the first terminal and the second terminal can be increased, which is beneficial to improving the insulation reliability between the first terminal and the second terminal, thereby improving the reliability of the power distribution device 100.

[0028] In one embodiment, when the first insulating member protrudes from the first terminal, the protrusion height of the first insulating member relative to the first terminal is H1, wherein 5mm≤H1≤30mm; when the first insulating member protrudes from the second terminal, the protrusion height of the first insulating member relative to the second terminal is H2, wherein 5mm≤H2≤30mm.

[0029] By adopting the technical solution of this embodiment, there is a suitable creepage distance between the first terminal and the second terminal, and there is good insulation between the first terminal and the second terminal. In addition, the size design of the first insulating component is also more reasonable, with less redundancy and lower cost, which is also conducive to reducing the size of the power distribution device.

[0030] In one embodiment, the first insulating element and the mounting base are an integral structure.

[0031] By adopting the technical solution of this embodiment, the first insulating component and the mounting base are integrated into one structure, and the connection between the first insulating component and the mounting base is reliable, which is beneficial to improving the reliability of the power distribution device. In addition, the first insulating component and the mounting base are simple to manufacture, which is beneficial to improving production efficiency.

[0032] In one embodiment, the power distribution device further includes a first insulating cover, which covers and seals the first opening, and has a first through hole through which a first terminal passes; and / or, the power distribution device further includes a second insulating cover, which covers and seals the second opening, and has a second through hole through which a second terminal passes.

[0033] By adopting the technical solution of this embodiment, the first insulating cover can close the first opening, thereby providing insulation protection for the first switching unit. Similarly, the second insulating cover can close the second opening, thereby providing insulation protection for the second switching unit, thereby improving the reliability of the power distribution device.

[0034] In one embodiment, when the power distribution device includes a first insulating cover, the first relay has multiple first electrical connection structures, and the side of the first insulating cover facing away from the first switching unit is provided with a first insulating isolation portion, which is located between two adjacent first electrical connection structures; when the power distribution device includes a second insulating cover, the first relay has multiple second electrical connection structures, and the side of the second insulating cover facing away from the second switching unit is provided with a second insulating isolation portion, which is located between two adjacent second electrical connection structures.

[0035] By adopting the technical solution of this embodiment, the first insulating isolation part insulates and separates two adjacent first electrical connection structures, thereby improving the insulation performance between the two adjacent first electrical connection structures, reducing the short-circuit risk of the first relay, and thus improving the reliability of the first relay and the power distribution device. Similarly, the second insulating isolation part insulates and separates two adjacent second electrical connection structures, thereby improving the insulation performance between the two adjacent second electrical connection structures, reducing the short-circuit risk of the second relay, and thus improving the reliability of the second relay and the power distribution device.

[0036] In one embodiment, an installation gap is formed between the opposing cavity walls of the first and second receiving cavities.

[0037] By adopting the technical solution of this embodiment, the first relay and the second relay can be insulated through the installation gap, which helps to improve the insulation between the first relay and the second relay, reduce the risk of short circuit, and improve the reliability of the power distribution device.

[0038] In one embodiment, the first electrical connector and the second electrical connector are located on opposite sides of the mounting gap.

[0039] By adopting the technical solution of this embodiment, the installation gap can insulate the first electrical connector and the second electrical connector, thereby reducing the risk of short circuit and improving the reliability of the power distribution device.

[0040] In one embodiment, when an insulating member is provided between the first electrical connector and the second electrical connector, the insulating member located between the first electrical connector and the second electrical connector is a second insulating member; the first electrical connector includes a first electrical connection segment and a second electrical connection segment connected to each other, the first electrical connection segment being electrically connected to a first terminal; the second electrical connector includes a third electrical connection segment and a fourth electrical connection segment connected to each other, the third electrical connection segment being electrically connected to a second terminal; the second electrical connection segment and the fourth electrical connection segment are located in an installation gap, and a second insulating member is provided between the second electrical connection segment and the fourth electrical connection segment.

[0041] By adopting the technical solution of this embodiment, the second electrical connection segment and the fourth electrical connection segment are located within the installation gap. The second electrical connection segment and the fourth electrical connection segment can utilize the installation gap as installation space, which is beneficial to improving the structural compactness of the power distribution device, reducing the external size of the power distribution device, and improving the structural compactness of the electrical equipment and battery, as well as reducing manufacturing costs. In addition, the setting of the second insulating component makes the insulation between the first electrical connection component and the second electrical connection component better, reducing the risk of short circuit, which is beneficial to improving the reliability of the power distribution device.

[0042] In one embodiment, the second electrical connection segment is fitted with a first insulating sleeve, and the portion of the first insulating sleeve located between the second electrical connection segment and the fourth electrical connection segment at least forms a portion of the second insulating element; and / or, the fourth electrical connection segment is fitted with a second insulating sleeve, and the portion of the second insulating sleeve located between the second electrical connection segment and the fourth electrical connection segment at least forms a portion of the second insulating element.

[0043] By adopting the technical solution of this embodiment, the installation and operation of the first insulating sleeve and the second insulating sleeve are simple, which is conducive to improving the production efficiency of the power distribution device; in addition, the simple insulation structure is also conducive to reducing the manufacturing cost of the power distribution device.

[0044] In one embodiment, the second insulating element and the mounting base are an integral structure; or, the second insulating element and the mounting base are separate structures.

[0045] By adopting the technical solution of this embodiment, the second insulating component and the mounting base are integrated into one structure, the connection between the second insulating component and the mounting base is reliable, and the insulation reliability of the second insulating component is good, which is conducive to improving the reliability of the power distribution device. The mounting base and the second insulating component are separate structures, which can be flexibly set and are convenient for processing and manufacturing.

[0046] Secondly, a battery is provided, including a power distribution device as described in the above embodiments.

[0047] Thirdly, an electrical appliance is provided, including a power distribution device as described in the above embodiments; and / or, including a battery as described in the above embodiments.

[0048] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0050] Figure 1 This is a schematic diagram of the structure of a vehicle provided in one embodiment of this application.

[0051] Figure 2 This is a schematic diagram of the structure of a battery provided in another embodiment of this application.

[0052] Figure 3 This is a schematic diagram of the structure of a battery cell provided in another embodiment of this application.

[0053] Figure 4 for Figure 3 The diagram shows an exploded view of a single battery cell.

[0054] Figure 5 This is a first-view structural schematic diagram of a power distribution device provided in an embodiment of this application.

[0055] Figure 6 for Figure 5 The diagram shows an exploded view of the power distribution equipment.

[0056] Figure 7 for Figure 5 The diagram shows the structure of the power distribution device after the first housing cover and the insulating heat-conducting components are concealed.

[0057] Figure 8 for Figure 5 The diagram shown is an exploded view of the power distribution device after the first housing cover and insulating heat-conducting components have been concealed.

[0058] Figure 9 for Figure 8 The diagram shows the structure of the mounting base.

[0059] Figure 10 for Figure 8 The diagram shows the structure of the second shell cover.

[0060] Figure 11 for Figure 5The diagram shows the structure of the power distribution device from a second perspective.

[0061] Figure 12 For along Figure 11 Sectional view along line AA in the middle.

[0062] Figure 13 for Figure 12 A magnified view of a section at point B.

[0063] Figure 14 This is a third-view structural schematic diagram of a power distribution device provided in an embodiment of this application.

[0064] Figure 15 for Figure 14 The diagram shows a fourth-view structural schematic of the power distribution device.

[0065] Figure 16 This is a schematic diagram of the structure of a power distribution device provided in an embodiment of this application.

[0066] Figure 17 for Figure 16 The diagram shows an exploded view of the power distribution equipment.

[0067] Figure 18 for Figure 16 The diagram shows the structure of the power distribution device after the first housing cover and the insulating heat-conducting components are concealed.

[0068] Figure 19 for Figure 16 The diagram shown is an exploded view of the power distribution device after the first housing cover and insulating heat-conducting components have been concealed.

[0069] The following are the labeling elements in the figure: 1000, Vehicle; 1100, Battery; 1200, Controller; 1300, Motor; 10, Housing; 11, First Part; 12, Second Part; 20, Battery Cell; 21, End Cap; 211, Electrode Terminal; 212, Pressure Relief Mechanism; 22, Housing; 23, Electrode Assembly; 100, Power Distribution Device; 1001, Mounting Gap; 110, First Electrical Component; 1101, First Relay; 1102, Main Positive Relay; 111, First Electrical Connection Structure; 1111, First Terminal; 11111, First Electrical Connection Part; 11112, First Bolt; 1112, ... 1. Electrical connector; 11121. First electrical connection segment; 11122. Second electrical connection segment; 11123. Fifth electrical connection segment; 11124. First connection hole; 11125. Seventh electrical connection segment; 112. First switching unit; 120. Second electrical component; 1201. Second relay; 1202. Main negative relay; 121. Second electrical connection structure; 1211. Second terminal; 12111. Second electrical connection part; 12112. Second bolt; 1212. Second electrical connector; 12121. Third electrical connection segment; 12122. Fourth electrical connection segment; 12123. Sixth electrical connection segment; Electrical connection section; 12124, second connection hole; 12125, eighth electrical connection section; 122, second switch unit; 130, insulating component; 131, first insulating component; 132, second insulating component; 133, first insulating sleeve; 134, second insulating sleeve; 141, mounting base; 1411, first receiving cavity; 14111, first opening; 1412, second receiving cavity; 14121, second opening; 1413, third receiving cavity; 1414, fourth receiving cavity; 142, first cover; 1421, rim; 14211, snap; 1422, fifth receiving cavity; 1423 1424. Sixth receiving cavity; 1425. Seventh receiving cavity; 1426. Insulating isolation plate; 143. Second shell cover; 1431. Receiving hole; 151. Third electrical connector; 152. Fourth electrical connector; 153. Fifth electrical connector; 160. Connector; 170. Insulating and heat-conducting component; 181. Fuse; 182. Precharge resistor; 183. Precharge relay; 1831. Plug terminal; 191. First insulating cover assembly; 1911. First insulating isolation part; 1912. First through hole; 192. Second insulating cover assembly; 1921. Second insulating isolation part; 1922. Second through hole. Detailed Implementation

[0070] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0071] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0072] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0073] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments in any suitable manner.

[0074] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0075] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces). "Several" means one or more, unless otherwise explicitly specified.

[0076] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0077] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0078] In the description of the embodiments of this application, unless otherwise expressly specified and limited, when an element is referred to as "fixed to" or "set on" another element, it may be directly on or indirectly on the other element. When an element is referred to as "connected to" another element, it may be directly connected to or indirectly connected to the other element.

[0079] In the description of the embodiments in this application, unless otherwise expressly specified and limited, the technical term "adjacent" refers to proximity in location. For example, among three components A1, A2, and B, if the distance between A1 and B is greater than the distance between A2 and B, then A2 is closer to B than A1; that is, A2 is adjacent to B, or B is adjacent to A2. Similarly, when there are multiple components C, namely C1, C2, ... CN, if one component C, such as C2, is closer to component B than the other components C, then B is adjacent to C2, or C2 is adjacent to B.

[0080] In this application, for ease of description, the Z-axis in the accompanying drawings represents the up-down direction, with the positive direction of the Z-axis representing up and the negative direction of the Z-axis representing down. The Y-axis in the accompanying drawings represents the left-right direction, with the positive direction of the Y-axis representing left and the negative direction of the Y-axis representing right. The X-axis in the accompanying drawings represents the front-back direction, with the positive direction of the X-axis representing back and the negative direction of the X-axis representing front.

[0081] Electrical equipment can refer to devices that use batteries as a power source, providing electrical energy to drive the equipment. Electrical equipment typically includes a power distribution unit, which controls the operation of high-voltage circuits within the equipment. In high-voltage circuits, "voltage" refers to voltage, and a high-voltage circuit is one with a voltage exceeding 60V. For example, a power distribution unit can be a high-voltage distribution box, which is responsible for the power distribution and management of high-voltage circuits in electrical equipment. For instance, a PDU (Power Distribution Unit) used in new energy vehicles is responsible for the power distribution and management of the high-voltage circuits in the vehicle, providing functions such as charging and discharging control, high-voltage component power-on control, circuit overload and short-circuit protection, high-voltage sampling, and low-voltage control, protecting and monitoring the operation of the high-voltage system. A high-voltage distribution box can also refer to a component used in batteries to control battery charging and discharging, such as a BDU (Battery Disconnect Unit). A BDU is a high-voltage distribution box specifically designed for batteries, controlling their charging and discharging.

[0082] The arrangement of electrical components within power distribution equipment is becoming increasingly compact to reduce the overall size of the equipment, thereby minimizing the space occupied by electrical equipment and batteries, improving structural compactness, and reducing costs. However, the compact arrangement of these components, the small spacing between them, and the poor insulation between their electrical connections make them prone to short circuits under high voltage conditions, severely impacting the reliability of the power distribution equipment.

[0083] To improve the insulation between the electrical connection structures of two electrical components in a power distribution device, embodiments of this application provide a power distribution device including a first electrical component and a second electrical component. The first electrical component has a first electrical connection structure, and the second electrical component has a second electrical connection structure, which are spaced apart. An insulating component is provided between the first and second electrical connection structures. This insulating component improves the insulation performance between the first and second electrical connection structures, thereby increasing the insulation between the electrical connection structures of the two electrical components, reducing the risk of short circuits, and improving the reliability of the power distribution device.

[0084] This application discloses a power distribution device, battery, and electrical equipment. From a market perspective, the application of batteries is becoming increasingly widespread. Batteries are not only used in energy storage power systems such as hydropower, thermal power, wind power, and solar power plants, but also widely used in electric vehicles such as electric bicycles, electric motorcycles, and electric cars, as well as in military equipment and aerospace. With the continuous expansion of the application fields of power batteries, the market demand is also constantly increasing. Electrical equipment can be, but is not limited to, mobile phones, tablets, laptops, electric toys, power tools, electric vehicles, electric cars, ships, spacecraft, etc. Among them, electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc., and spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0085] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0086] Please refer to Figure 1 Vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc. A battery 1100 is installed inside vehicle 1000, which can be located at the bottom, front, or rear of vehicle 1000. Battery 1100 can be used to power vehicle 1000; for example, battery 1100 can serve as the operating power source for vehicle 1000. Vehicle 1000 may also include a controller 1200 and a motor 1300. Controller 1200 controls the battery 1100 to supply power to motor 1300, for example, to meet the power needs of vehicle 1000 during starting, navigation, and driving.

[0087] In some embodiments of this application, the battery 1100 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0088] Please refer to Figure 2As one embodiment of the battery 1100, the battery 1100 includes a housing 10 and a battery cell 20, with the battery cell 20 housed within the housing 10. The housing 10 provides a space for the battery cell 20 and can have various structures. In some embodiments, the housing 10 may include a first portion 11 and a second portion 12, which overlap each other, jointly defining a space for accommodating the battery cell 20. The second portion 12 may be a hollow structure with one open end, and the first portion 11 may be a plate-like structure, covering the open side of the second portion 12 so that the first portion 11 and the second portion 12 jointly define the space; alternatively, the first portion 11 and the second portion 12 may be hollow structures with one open side, with the open side of the first portion 11 covering the open side of the second portion 12. Of course, the housing 10 formed by the first portion 11 and the second portion 12 can have various shapes, such as a cylinder, a cuboid, etc.

[0089] In battery 1100, there can be multiple battery cells 20. Multiple battery cells 20 can be connected in series, in parallel, or in a mixed manner. A mixed manner means that multiple battery cells 20 are connected in both series and parallel.

[0090] In one embodiment, multiple battery cells 20 can be directly connected in series, parallel, or in a hybrid configuration, and then the entire assembly of the multiple battery cells 20 is housed within the housing 10. Alternatively, the battery 1100 can also be formed by first connecting multiple battery cells 20 in series, parallel, or in a hybrid configuration to create a battery module, and then connecting multiple battery modules in series, parallel, or in a hybrid configuration to form a whole, which is then housed within the housing 10. The battery 1100 may also include other structures; for example, it may include a busbar component for electrical connection between the multiple battery cells 20.

[0091] Each battery cell 20 can be a secondary battery or a primary battery; it can also be a lithium-sulfur battery, a sodium-ion battery, or a magnesium-ion battery, but is not limited to these. The battery cell 20 can be cylindrical, flat, cuboid, or other shapes.

[0092] As another embodiment of the battery 1100, the battery 1100 may not include the housing 10, but instead connect multiple battery cells 20 electrically and assemble them into an electrical device after forming a whole through necessary fixing structures.

[0093] Please refer to Figure 3 and Figure 4 The battery cell 20 refers to the smallest unit that makes up a battery. For example... Figure 3 The battery cell 20 includes an end cap 21, a housing 22, an electrode assembly 23, and other functional components.

[0094] End cap 21 refers to a component that covers the opening of housing 22 to isolate the internal environment of battery cell 20 from the external environment. The shape of end cap 21 can be adapted to the shape of housing 22 to fit it. Optionally, end cap 21 can be made of a material with certain hardness and strength (such as aluminum alloy), so that end cap 21 is not easily deformed under pressure and impact, allowing battery cell 20 to have higher structural strength and improved safety performance. Functional components such as electrode terminals 211 can be provided on end cap 21. Electrode terminals 211 can be used for electrical connection with electrode assembly 23 to output or input electrical energy to battery cell 20. In some embodiments, end cap 21 can also be provided with a pressure relief mechanism 212 for releasing internal pressure when the internal pressure or temperature of battery cell 20 reaches a threshold. The material of end cap 21 can also be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc., and this application embodiment does not impose any special limitations on this. In some embodiments, an insulating component may be provided on the inner side of the end cap 21. The insulating component can be used to isolate the electrical connection components within the housing 22 from the end cap 21 to reduce the risk of short circuits. For example, the insulating component may be made of plastic, rubber, etc.

[0095] The housing 22 is a component used to cooperate with the end cap 21 to form the internal environment of the battery cell 20. This internal environment can accommodate the electrode assembly 23, electrolyte, and other components. The housing 22 and the end cap 21 can be independent components. An opening can be provided on the housing 22, and the end cap 21 can be used to close the opening to form the internal environment of the battery cell 20. Alternatively, the end cap 21 and the housing 22 can be integrated. Specifically, the end cap 21 and the housing 22 can form a common connecting surface before other components are inserted into the housing. When it is necessary to encapsulate the interior of the housing 22, the end cap 21 closes the housing 22. The housing 22 can be of various shapes and sizes, such as cuboid, cylindrical, hexagonal prism, etc. Specifically, the shape of the housing 22 can be determined according to the specific shape and size of the electrode assembly 23. The material of the housing 22 can be various, such as copper, iron, aluminum, stainless steel, aluminum alloy, plastic, etc. This application embodiment does not impose any special limitations on this.

[0096] Electrode assembly 23 is the component in the battery cell 20 where electrochemical reactions occur. The housing 22 may contain one or more electrode assemblies 23. Electrode assembly 23 includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of the battery cell, active ions (e.g., lithium ions) repeatedly insert and extract between the positive and negative electrodes. The separator, located between the positive and negative electrodes, prevents short circuits between them while allowing active ions to pass through.

[0097] In some embodiments, the positive electrode can be a positive electrode sheet, which may include a positive current collector and a positive active material disposed on at least one surface of the positive current collector.

[0098] In some embodiments, the negative electrode can be a negative electrode sheet, which may include a negative electrode current collector and a negative electrode active material disposed on at least one surface of the negative electrode current collector.

[0099] In some embodiments, the separator is a separator membrane. This application does not impose any particular limitation on the type of separator membrane; any known porous separator membrane with good chemical and mechanical stability can be selected.

[0100] In some embodiments, the electrode assembly 23 is a wound structure. The positive electrode and the negative electrode are wound into a wound structure.

[0101] In some embodiments, the electrode assembly 23 has a stacked structure.

[0102] In some embodiments, the power distribution device 100 can be used to control the distribution and management of electrical energy from the battery 1100 to the controller 1200 and the motor 1300, thereby assisting the operation of the vehicle 1000; the power distribution device 100 can also be used to control the charging and discharging of the battery cells 20 in the battery 1100, wherein the power distribution device 100 can be installed inside the housing 10 or outside the housing 10.

[0103] In one embodiment of this application, combined with Figures 5-8 As shown, a power distribution device 100 is provided, which includes a first electrical component 110 and a second electrical component 120. The first electrical component 110 has a first electrical connection structure 111; the second electrical component 120 has a second electrical connection structure 121, and the first electrical connection structure 111 and the second electrical connection structure 121 are spaced apart; wherein, an insulating member 130 is provided between the first electrical connection structure 111 and the second electrical connection structure 121.

[0104] The power distribution device 100 typically contains multiple electrical components, which may include, but are not limited to, relays, fuses, resistors, current sensors, etc. The first electrical component 110 may refer to a single electrical component in the power distribution device 100, or it may refer to an electrical module integrating multiple electrical components in the power distribution device 100. The second electrical component 120 may refer to other electrical components or electrical modules in the power distribution device 100 besides the first electrical component 110. Specifically, one of two adjacent electrical components in the power distribution device 100 may be the first electrical component 110, and the other may be the second electrical component 120.

[0105] The first electrical connection structure 111 can refer to an electrical connection structure that electrically connects the first electrical component 110 to other electrical components. These other electrical components can refer to the second electrical component 120, or to any electrical component in the power distribution device 100 other than the first electrical component 110 and the second electrical component 120, or even to electrical components outside the power distribution device 100. The first electrical connection structure 111 is made of conductive materials, such as copper or aluminum, to meet electrical conductivity requirements.

[0106] The second electrical connection structure 121 can refer to the connection structure from the second electrical device 120 that electrically connects to other electrical devices. These other electrical devices can refer to the first electrical device 110, or to any electrical device in the power distribution device 100 other than the first electrical device 110 and the second electrical device 120, or even to electrical devices outside the power distribution device 100. The second electrical connection structure 121 is made of conductive materials, such as copper or aluminum, to meet electrical conductivity requirements.

[0107] Insulating component 130 can refer to a component made of insulating material, which can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (polyethylene), and PVC (Polyvinyl chloride).

[0108] The first electrical connection structure 111 and the second electrical connection structure 121 are spaced apart. It can be understood that a gap is formed between the first electrical connection structure 111 and the second electrical connection structure 121 so that the first electrical connection structure 111 and the second electrical connection structure 121 do not contact each other, thereby reducing the risk of short circuit.

[0109] An insulating member 130 is provided between the first electrical connection structure 111 and the second electrical connection structure 121. It can be understood that the insulating member 130 is located between the first electrical connection structure 111 and the second electrical connection structure 121, that is, the insulating member 130 is located in the gap formed between the first electrical connection structure 111 and the second electrical connection structure 121. The insulating member 130 can insulate the first electrical connection structure 111 and the second electrical connection structure 121 to improve the insulation between the first electrical connection structure 111 and the second electrical connection structure 121.

[0110] In the power distribution device 100 of this application embodiment, an insulating member 130 is provided between the first electrical connection structure 111 of the first electrical component 110 and the second electrical connection structure 121 of the second electrical component 120. The insulating member 130 insulatingly separates the first electrical connection structure 111 and the second electrical connection structure 121, which can improve the insulation performance between the first electrical connection structure 111 and the second electrical connection structure 121, that is, improve the insulation between the electrical connection structures of the two electrical components, reduce the risk of short circuit, and help improve the reliability of the power distribution device 100.

[0111] In another embodiment of this application, combined with Figure 7 As shown, the first electrical connection structure 111 and the second electrical connection structure 121 are provided with an insulating element 130 at the position where the distance is shortest.

[0112] When the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is the same at any position, the position where the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is the shortest can refer to any position between the first electrical connection structure 111 and the second electrical connection structure 121; while when the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is not the same at different positions, the position where the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is the smallest can refer to the position where the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is the smallest.

[0113] By adopting the technical solution of this embodiment, the creepage distance of the first electrical connection structure 111 and the second electrical connection structure 121 is the smallest at the shortest distance position. That is, the insulation of the first electrical connection structure 111 and the second electrical connection structure 121 at the shortest distance position is poor, and the short circuit risk is high. However, the insulating member 130 is set at the shortest distance position of the first electrical connection structure 111 and the second electrical connection structure 121, which can effectively improve the insulation at this position, thereby effectively reducing the short circuit risk of the electrical connection structure of the two electrical components, and thus effectively improving the reliability of the power distribution device 100.

[0114] In another embodiment of this application, combined with Figure 7 As shown, the distance between the first electrical connection structure 111 and the second electrical connection structure 121 at the shortest distance position ranges from 3 mm to 9 mm.

[0115] The smaller the distance L between the first electrical connection structure 111 and the second electrical connection structure 121 at the shortest position, the easier it is for a short circuit to occur.

[0116] By adopting the technical solution of this embodiment, the distance L at the shortest position between the first electrical connection structure 111 and the second electrical connection structure 121 is within 3mm~9mm, which is prone to short circuit. However, the insulating member 130 is set at the shortest position between the first electrical connection structure 111 and the second electrical connection structure 121, which can effectively improve the insulation between the first electrical connection structure 111 and the second electrical connection structure 121, thereby effectively reducing the risk of short circuit. In addition, the first electrical connection structure 111 and the second electrical connection structure 121 can also provide a larger installation space for the insulating member 130, so the insulating member 130 can be set larger, so that the insulating member 130 can better insulate and separate the first electrical connection structure 111 and the second electrical connection structure 121.

[0117] In another embodiment of this application, combined with Figure 7 As shown, the distance between the first electrical connection structure 111 and the second electrical connection structure 121 at the shortest distance position ranges from 3mm to 6mm.

[0118] By adopting the technical solution of this embodiment, the distance L at the shortest position between the first electrical connection structure 111 and the second electrical connection structure 121 is within 3mm~6mm, which makes it easier for a short circuit to occur. The insulating member 130 is set at the shortest position between the first electrical connection structure 111 and the second electrical connection structure 121, which can effectively improve the insulation between the first electrical connection structure 111 and the second electrical connection structure 121, thereby effectively reducing the risk of short circuit. In addition, the first electrical connection structure 111 and the second electrical connection structure 121 can also provide a larger installation space for the insulating member 130, so that the insulating member 130 can be set larger, so that the insulating member 130 can better insulate and separate the first electrical connection structure 111 and the second electrical connection structure 121.

[0119] In one embodiment, the distance L at the shortest position between the first electrical connection structure 111 and the second electrical connection structure 121 can be, but is not limited to, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm or 9mm.

[0120] In another embodiment of this application, combined with Figure 7As shown, the first electrical connection structure 111 includes a first terminal 1111 and a first electrical connector 1112, the first electrical connector 1112 being electrically connected to the first terminal 1111; the second electrical connection structure 121 includes a second terminal 1211 and a second electrical connector 1212, the second electrical connector 1212 being electrically connected to the second terminal 1211; when the first electrical connection structure 111 and the second electrical connection structure 121 are located between the first terminal 1111 and the second terminal 1211 at their shortest distance, an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211; when the first electrical connection structure 111 and the second electrical connection structure 121 are located between the first electrical connector 1112 and the second electrical connector 1212 at their shortest distance, an insulating member 130 is provided between the first electrical connector 1112 and the second electrical connector 1212.

[0121] The first terminal 1111 can refer to the terminal from the first electrical device 110 that is electrically connected to other electrical devices. The first electrical connector 1112 can refer to the conductive component that electrically connects the first terminal 1111 to other electrical devices. Both the first terminal 1111 and the first electrical connector 1112 are made of conductive materials, such as conductive metals like copper and aluminum.

[0122] The second terminal 1211 can refer to the terminal from which the second electrical device 120 is led out and electrically connected to other electrical devices. The second electrical connector 1212 can refer to the conductive component that electrically connects the second terminal 1211 to other electrical devices. Both the second terminal 1211 and the second electrical connector 1212 are made of conductive materials, such as conductive metals like copper and aluminum.

[0123] When the first electrical connection structure 111 and the second electrical connection structure 121 are located at their shortest distance between the first terminal 1111 and the second terminal 1211, an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211. It can be understood that the distance between the first electrical connection member 1112 and the second electrical connection member 1212, the distance between the first electrical connection member 1112 and the second terminal 1211, and the distance between the first terminal 1111 and the second electrical connection member 1212 are all greater than the distance between the first terminal 1111 and the second terminal 1211. That is, the distance between the first terminal 1111 and the second terminal 1211 is equal to the minimum distance between the first electrical connection structure 111 and the second electrical connection structure 121, and the insulating member 130 is located at the minimum distance. This can effectively improve the insulation of the first electrical connection structure 111 and the second electrical connection structure 121, thereby effectively reducing the short-circuit risk of the first electrical connection structure 111 and the second electrical connection structure 121 and improving the reliability of the power distribution device 100.

[0124] When the first electrical connection structure 111 and the second electrical connection structure 121 are located at their shortest distance between the first electrical connector 1112 and the second electrical connector 1212, an insulating member 130 is provided between the first electrical connector 1112 and the second electrical connector 1212. It can be understood that the distance between the first terminal 1111 and the second terminal 1211, the distance between the first electrical connector 1112 and the second terminal 1211, and the distance between the first terminal 1111 and the second electrical connector 1212 are all greater than the distance between the first electrical connector 1112 and the second electrical connector 1212. That is, the distance between the first electrical connector 1112 and the second electrical connector 1212 is equal to the minimum distance between the first electrical connection structure 111 and the second electrical connection structure 121, and the insulating member 130 is located at the minimum distance. This can effectively improve the insulation of the first electrical connection structure 111 and the second electrical connection structure 121, thereby effectively reducing the short-circuit risk of the first electrical connection structure 111 and the second electrical connection structure 121 and improving the reliability of the power distribution device 100.

[0125] By adopting the technical solution of this embodiment, the insulating member 130 is located at the position where the distance between the first electrical connection structure 111 and the second electrical connection structure 121 is the shortest. This can effectively improve the insulation of the first electrical connection structure 111 and the second electrical connection structure 121, thereby effectively reducing the short circuit risk of the first electrical connection structure 111 and the second electrical connection structure 121 and improving the reliability of the power distribution device 100.

[0126] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, the first electrical connection structure 111 includes a first terminal 1111 and a first electrical connector 1112, the first electrical connector 1112 being electrically connected to the first terminal 1111; the second electrical connection structure 121 includes a second terminal 1211 and a second electrical connector 1212, the second electrical connector 1212 being electrically connected to the second terminal 1211; an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211, and an insulating member 130 is provided between the first electrical connector 1112 and the second electrical connector 1212.

[0127] By adopting the technical solution of this embodiment, an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211, as well as between the first electrical connector 1112 and the second electrical connector 1212. This can better separate the first electrical connection structure 111 and the second electrical connection structure 121, thereby more effectively improving the insulation between the first electrical connection structure 111 and the second electrical connection structure 121, and making the power distribution device 100 more reliable in use.

[0128] In another embodiment of this application, the first electrical device 110 is a first relay 1101, the first terminal 1111 is a connection terminal led out from the contact of the first relay 1101, the second electrical device 120 is a second relay 1201, and the second terminal 1211 is a connection terminal led out from the contact of the second relay 1201.

[0129] The relays in the power distribution device 100 are typically located in high-voltage circuits. A relay can refer to an electrical device used to control the on / off state of a circuit. Specifically, a relay includes components such as an electromagnet, a coil, and contacts. When the input quantity (such as voltage, current, temperature, etc.) to the input coil reaches a specified value, the electromagnet moves under the magnetic force of the coil. The movement of the electromagnet causes the contacts to move, thereby changing the on / off state of the controlled high-voltage circuit. The voltage of the high-voltage circuit where the relay is located is relatively high, which makes the electrical connection structure led out by the relay in the power distribution device 100 more susceptible to short circuits.

[0130] The first relay 1101 can refer to a relay in the power distribution device 100, and the second relay 1201 can refer to another relay in the power distribution device 100; specifically, the first relay 1101 can refer to the main positive relay 1102, which is a relay used to control the on / off state of the main positive circuit in the high-voltage circuit, and the second relay 1201 can refer to the main negative relay 1202, which is a relay used to control the on / off state of the main negative circuit in the high-voltage circuit.

[0131] The first terminal 1111 is a connection terminal led out from the contacts of the first relay 1101. It can be understood that when the first electrical component 110 is the first relay 1101, the first terminal 1111 can refer to the connection terminal electrically connected to the contacts of the first relay 1101. This connection terminal is used to connect to a high-voltage circuit and controls the on / off state of the high-voltage circuit through the opening and closing of the contacts. For example, the first terminal 1111 includes a first electrical connection portion 11111 and a first bolt 11112. The first electrical connection portion 1112 is fixed to the first electrical connection portion 11111 by the first bolt 11112, thereby achieving an electrical connection between the first terminal 1111 and the first electrical connection portion 1112. The first electrical connection portion 11111 can refer to a conductive component led out from the contacts of the first relay 1101. The first electrical connection portion 11111 and the first bolt 11112 can be made of conductive materials such as copper or aluminum.

[0132] The second terminal 1211 is a connection terminal led out from the contacts of the second relay 1201. It can be understood that when the second electrical component 120 is the second relay 1201, the second terminal 1211 can refer to the connection terminal electrically connected to the contacts of the second relay 1201. This connection terminal is used to connect to a high-voltage circuit and controls the on / off state of the high-voltage circuit through the opening and closing of the contacts. For example, the second terminal 1211 includes a second electrical connection portion 12111 and a second bolt 12112. The second electrical connection portion 1212 is fixed to the second electrical connection portion 12111 by the second bolt 12112, thereby achieving an electrical connection between the second terminal 1211 and the second electrical connection portion 1212. The second electrical connection portion 12111 can refer to a conductive component led out from the contacts of the second relay 1201. The second electrical connection portion 12111 and the second bolt 12112 can be made of conductive materials such as copper or aluminum.

[0133] By adopting the technical solution of this embodiment, the insulating member 130 is disposed between the connection terminals led out from the contacts of the first relay 1101 and the second relay 1201 in the power distribution device 100, which can reduce the short circuit risk of the first relay 1101 and the second relay 1201 in the power distribution device 100, thereby effectively reducing the short circuit risk of the power distribution device 100 and improving the reliability of the power distribution device 100.

[0134] In another embodiment of this application, combined with Figure 7 and Figure 8 As shown, the power distribution device 100 also includes a mounting base 141, which has a first receiving cavity 1411 and a second receiving cavity 1412. The first relay 1101 also includes a first switching unit 112, which is electrically connected to a first terminal 1111 and is exposed in the first receiving cavity 1411. The second relay 1201 includes a second switching unit 122, which is electrically connected to a second terminal 1211 and is exposed in the second receiving cavity 1412.

[0135] Mounting base 141 can refer to the mounting base of the first relay 1101 and the second relay 1201, serving to support the first relay 1101 and the second relay 1201. Mounting base 141 is usually made of insulating material to achieve insulation protection for the electrical components within the power distribution device 100. The insulating material can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (Polyethylene), and PVC (Polyvinyl chloride). The first relay 1101 can be connected to the mounting base 141 by, but is not limited to, snap-fit, snap-fit, screw-fit, adhesive, or integral injection molding. The second relay 1201 can be connected to the mounting base 141 by, but is not limited to, snap-fit, snap-fit, screw-fit, adhesive, or integral injection molding.

[0136] The first receiving cavity 1411 can refer to the chamber of the mounting base 141 used to receive the first relay 1101, and the second receiving cavity 1412 can refer to the chamber of the mounting base 141 used to receive the second relay 1201. The first switching unit 112 can refer to the main component inside the first relay 1101 that performs switching control, that is, the unit composed of electromagnets, coils, contacts, and other components inside the first relay 1101 after removing the housing. The first terminal 1111 is electrically connected to the first switching unit 112, and the first switching unit 112 is electrically connected to the first electrical connector 1112 through the first terminal 1111, thereby realizing the electrical connection between the first electrical device 110 and other electrical devices.

[0137] The first switching unit 112 is exposed inside the first receiving cavity 1411. It can be understood that the first switching unit 112 is not covered by a shell, but is directly exposed inside the first receiving cavity 1411. That is, the cavity wall of the first receiving cavity 1411 can be directly used as the shell of the first relay 1101. In other words, the first electrical device 110 is the relay after the shell is removed. The mounting base 141 and the shell of the first relay 1101 are integrated to form an integral structure, which helps to reduce manufacturing costs.

[0138] The second switching unit 122 can refer to the main component within the second relay 1201 that performs switching control, i.e., the unit composed of electromagnets, coils, contacts, and other components within the second relay 1201 after removing the housing. The second terminal 1211 is electrically connected to the second switching unit 122, and the second switching unit 122 is electrically connected to the second electrical connector 1212 through the second terminal 1211, thereby realizing the electrical connection between the second electrical device 120 and other electrical devices.

[0139] The second switching unit 122 is exposed inside the second receiving cavity 1412. It can be understood that the second switching unit 122 is not covered by a shell, but is directly exposed inside the second receiving cavity 1412. That is, the cavity wall of the second receiving cavity 1412 can be directly used as the shell of the second relay 1201. In other words, the second electrical device 120 is the relay after the shell is removed. The mounting base 141 and the shell of the second relay 1201 are integrated to form a single structure, which helps to reduce manufacturing costs.

[0140] By adopting the technical solution of this embodiment, the first switching unit 112 of the first relay 1101 is directly exposed in the first receiving cavity 1411, and the second switching unit 122 of the second relay 1201 is directly exposed in the second receiving cavity 1412. In this way, the space occupied by the housing of the first relay 1101 and the housing of the second relay 1201 can be eliminated in the power distribution device 100, which is beneficial to improving the structural compactness of the power distribution device 100 and reducing the external size of the power distribution device 100. It is also beneficial to improve the performance of the power distribution device 100 and reduce the manufacturing cost. It is also beneficial to reduce the spacing between the first electrical connection structure 111 and the second electrical connection structure 121. In addition, the first relay 1101 and the second relay 1201 are usually the larger components in the power distribution device 100. Eliminating the housing of the first relay 1101 and the housing of the second relay 1201 can save a lot of space in the power distribution device 100, thereby effectively improving the structural compactness of the power distribution device 100.

[0141] In another embodiment of this application, combined with Figure 7 and Figure 8 As shown, the first receiving cavity 1411 has a first opening 14111, the second receiving cavity 1412 has a second opening 14121, the first opening 14111 and the second opening 14121 are located on the same side of the mounting base 141, the first terminal 1111 protrudes from the first opening 14111, and the second terminal 1211 protrudes from the second opening 14121.

[0142] The first opening 14111 may refer to the opening of the mounting base 141 that communicates with the first receiving cavity 1411.

[0143] The second opening 14121 may refer to the opening of the mounting base 141 that communicates with the second receiving cavity 1412.

[0144] The first opening 14111 and the second opening 14121 are located on the same side of the mounting base 141. It can be understood that the first opening 14111 and the second opening 14121 are located on the same side of the mounting base 141.

[0145] The first terminal 1111 protrudes from the first opening 14111. It can be understood that the first terminal 1111 protrudes from the first opening 14111 and is exposed outside the first opening 14111.

[0146] The second terminal 1211 protrudes from the second opening 14121. It can be understood that the second terminal 1211 protrudes from the second opening 14121 and is exposed outside the second opening 14121.

[0147] By adopting the technical solution of this embodiment, the first terminal 1111 and the second terminal 1211 protrude from the first opening 14111 and the second opening 14121 respectively, which facilitates the electrical connection of the first terminal 1111 to the first electrical connector 1112 and the electrical connection of the second terminal 1211 to the second electrical connector 1212. In addition, the first opening 14111 and the second opening 14121 are located on the same side of the mounting base 141, so the first electrical connector 1112 and the second electrical connector 1212 can be electrically installed on the same side. The assembly operation of the power distribution device 100 is simple and it is beneficial to improve the production efficiency of the power distribution device 100.

[0148] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, when an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211, the insulating member 130 located between the first terminal 1111 and the second terminal 1211 is a first insulating member 131. The projection of the first insulating member 131 along a first direction covers the projection of the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction, where the first direction is the distribution direction of the first terminal 1111 and the second terminal 1211; and / or, the projection of the first insulating member 131 along the first direction covers the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction, where the first direction is the distribution direction of the first terminal 1111 and the second terminal 1211.

[0149] The first direction is the distribution direction of the first terminal 1111 and the second terminal 1211. It can be understood that the first direction can be the direction from the first terminal 1111 to the second terminal 1211. Specifically, a straight line passing through the center point of the first terminal 1111 and the center point of the second terminal 1211 is defined, and the extension direction of this straight line is the first direction; for example, the first direction can be referred to as the Y direction in 7.

[0150] A plane perpendicular to the first direction is defined as the projection plane. The first projection image obtained by projecting the first insulating member 131 along the first direction onto the projection plane is the projection of the first insulating member 131 along the first direction. The second projection image obtained by projecting the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction onto the projection plane is the projection of the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction. The third projection image obtained by projecting the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction onto the projection plane is the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction onto the projection plane is the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction. For example, the image obtained by projecting the first insulating member 131 along the Y direction onto the XZ plane is the first projected image; the image obtained by projecting the portion of the first terminal 1111 protruding from the first opening 14111 along the Y direction onto the XZ plane is the second projected image; and the image obtained by projecting the portion of the second terminal 1211 protruding from the second opening 14121 along the Y direction onto the XZ plane is the third projected image.

[0151] The projection of the first insulating member 131 along the first direction covers the projection of the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction. It can be understood that the second projected image is located within the first projected image, or the edges of the first projected image and the edges of the second projected image coincide.

[0152] The projection of the first insulating member 131 along the first direction covers the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction. It can be understood that the third projected image is located within the first projected image, or the edges of the first projected image and the edges of the third projected image coincide.

[0153] In one embodiment, the projection of the first insulating member 131 along a first direction covers the projection of the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction. The first direction is the distribution direction of the first terminal 1111 and the second terminal 1211. That is, when looking from the first insulating member 131 to the first terminal 1111 in the first direction, the first insulating member 131 can completely block the portion of the first terminal 1111 protruding from the first opening 14111, thereby providing good insulation separation between the first terminal 1111 and the second terminal 1211, reducing the risk of short circuits, and improving the reliability of the power distribution device 100.

[0154] In one embodiment, the projection of the first insulating member 131 along a first direction covers the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction. The first direction is the distribution direction of the first terminal 1111 and the second terminal 1211. That is, when looking from the first insulating member 131 to the second terminal 1211 in the first direction, the first insulating member 131 can completely cover the portion of the second terminal 1211 protruding from the second opening 14121, and the first insulating member 131 can completely cover the portion of the first terminal 1111 protruding from the first opening 14111. This provides good insulation between the first terminal 1111 and the second terminal 1211, reduces the risk of short circuits, and helps improve the reliability of the power distribution device 100.

[0155] In one embodiment, the projection of the first insulating member 131 along a first direction covers the projection of the portion of the first terminal 1111 protruding from the first opening 14111 along the first direction, and the projection of the first insulating member 131 along the first direction covers the projection of the portion of the second terminal 1211 protruding from the second opening 14121 along the first direction. The first direction is the distribution direction of the first terminal 1111 and the second terminal 1211. That is, when looking from the first insulating member 131 to the first terminal 1111 in the first direction, the first insulating member 131 can completely cover the portion of the first terminal 1111 protruding from the first opening 14111. When looking from the first insulating member 131 to the second terminal 1211 in the first direction, the first insulating member 131 can also completely cover the portion of the second terminal 1211 protruding from the second opening 14121, thereby completely separating the first terminal 1111 and the second terminal 1211. The insulation between the first terminal 1111 and the second terminal 1211 is better, the risk of short circuit is lower, and it is beneficial to improve the reliability of the power distribution device 100.

[0156] By adopting the technical solution of this embodiment, the first insulating member 131 can better separate the first terminal 1111 and the second terminal 1211, and the insulation between the first terminal 1111 and the second terminal 1211 is better, the risk of short circuit is smaller, which is conducive to improving the reliability of the power distribution device 100.

[0157] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, when an insulating member 130 is provided between the first terminal 1111 and the second terminal 1211, the insulating member 130 located between the first terminal 1111 and the second terminal 1211 is the first insulating member 131. In the second direction, the first insulating member 131 protrudes relative to the first terminal 1111. The second direction intersects with the first direction, and the first direction is the distribution direction of the first terminal 1111 and the second terminal 1211.

[0158] The second direction can refer to the direction that intersects with the first direction; specifically, the second direction can refer to any direction other than the first direction, that is, the second direction is not parallel to the first direction; for example, the second direction can be found in [reference needed]. Figure 14 The X or Z direction.

[0159] In the second direction, the first insulating member 131 protrudes relative to the first terminal 1111. It can be understood that the first insulating member 131 may protrude from the first terminal 1111 on one side in the second direction.

[0160] By adopting the technical solution of this embodiment, in the second direction, the first insulating member 131 protrudes relative to the first terminal 1111, so that during creepage, it is necessary to pass through the part of the first insulating member 131 that protrudes relative to the first terminal 1111, thereby increasing the creepage distance between the first terminal 1111 and the second terminal 1211, which is beneficial to improving the insulation reliability between the first terminal 1111 and the second terminal 1211, thereby improving the reliability of the power distribution device 100.

[0161] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, in the second direction, the first insulating member 131 protrudes relative to the second terminal 1211. The second direction intersects with the first direction, which is the distribution direction of the first terminal 1111 and the second terminal 1211.

[0162] In the second direction, the first insulating member 131 protrudes relative to the second terminal 1211. It can be understood that the first insulating member 131 may protrude from the second terminal 1211 on one side in the second direction.

[0163] By adopting the technical solution of this embodiment, in the second direction, the first insulating member 131 protrudes relative to the second terminal 1211, so that during creepage, it is necessary to pass through the part of the first insulating member 131 that protrudes relative to the second terminal 1211, thereby increasing the creepage distance between the first terminal 1111 and the second terminal 1211, which is beneficial to improving the insulation reliability between the first terminal 1111 and the second terminal 1211, thereby improving the reliability of the power distribution device 100.

[0164] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, in the second direction, the first insulating member 131 protrudes relative to the first terminal 1111 and the first insulating member 131 protrudes relative to the second terminal 1211. The second direction intersects with the first direction, which is the distribution direction of the first terminal 1111 and the second terminal 1211.

[0165] By adopting the technical solution of this embodiment, during creepage, the creepage distance between the first terminal 1111 and the second terminal 1211 is increased by passing through the portion of the first insulating member 131 that protrudes from the first terminal 1111 and the second terminal 1211. This is beneficial to improving the insulation reliability between the first terminal 1111 and the second terminal 1211, thereby improving the reliability of the power distribution device 100.

[0166] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, when the first insulating member 131 protrudes from the first terminal 1111, the protrusion height of the first insulating member 131 relative to the first terminal 1111 is H1, where 5mm≤H1≤30mm.

[0167] The protrusion height of the first insulating member 131 relative to the first terminal 1111 is H1. It can be understood that the dimension of the portion of the first insulating member 131 protruding outside the first terminal 1111 in the second direction is H1. For example, H1 is the distance difference in the X direction between the front end face of the first terminal 1111 and the front side face of the first insulating member 131.

[0168] By adopting the technical solution of this embodiment, the design of 5mm≤H1≤30mm ensures that the distance between the first insulating member 131 protruding from the first terminal 1111 is reasonable, so that there is a suitable creepage distance between the first terminal 1111 and the second terminal 1211, and good insulation between the first terminal 1111 and the second terminal 1211. In addition, the size design of the first insulating member 131 is also reasonable, with little redundancy and low cost, which is also conducive to reducing the overall size of the power distribution device 100.

[0169] In one embodiment, the value of H1 can be, but is not limited to, 5mm, 7mm, 9mm, 11mm, 13mm, 14mm, 17mm, 19mm, 21mm, 23mm, 25mm, 27mm, 29mm or 30mm.

[0170] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, when the first insulating member 131 protrudes relative to the second terminal 1211, the protrusion height of the first insulating member 131 relative to the second terminal 1211 is H2, where 5mm≤H2≤30mm.

[0171] The protrusion height of the first insulating member 131 relative to the second terminal 1211 is H2. It can be understood that the portion of the first insulating member 131 protruding outside the second terminal 1211 has a dimension of H2 in the second direction. For example, H2 is the distance difference in the X direction between the front end face of the second terminal 1211 and the front side face of the second insulating member 132.

[0172] By adopting the technical solution of this embodiment, the design of 5mm≤H2≤30mm ensures that the distance between the first insulating member 131 protruding from the second terminal 1211 is reasonable, so that there is a suitable creepage distance between the first terminal 1111 and the second terminal 1211, and good insulation between the first terminal 1111 and the second terminal 1211. In addition, the size design of the first insulating member 131 is also reasonable, with little redundancy and low cost, which is also conducive to reducing the overall size of the power distribution device 100.

[0173] In another embodiment of this application, combined with Figure 14 and Figure 15 As shown, the first insulating element 131 and the mounting base 141 are an integral structure.

[0174] The first insulating component 131 and the mounting base 141 are an integral structure. It can be understood that the first insulating component 131 and the mounting base 141 are integrally formed by integral molding. Integral molding refers to the integral molding process such as extrusion, injection molding, and die casting.

[0175] By adopting the technical solution of this embodiment, the first insulating member 131 and the mounting base 141 are integrated into one structure, and the connection between the first insulating member 131 and the mounting base 141 has good reliability, which is conducive to improving the reliability of the power distribution device 100. In addition, the first insulating member 131 and the mounting base 141 are simple to manufacture, which is conducive to improving production efficiency.

[0176] In another embodiment of this application, combined with Figures 6-8 As shown, the power distribution device 100 further includes a first insulating cover 191, which covers and seals the first opening 14111. The first insulating cover 191 has a first through hole 1912, through which a first terminal 1111 passes; and / or, the power distribution device 100 further includes a second insulating cover 192, which covers and seals the second opening 14121. The second insulating cover 192 has a second through hole 1922, through which a second terminal 1211 passes.

[0177] The first insulating cover 191 can refer to a component that covers the first opening 14111, and the first insulating cover 191 seals the first opening 14111, thereby providing insulation protection for the first switch unit 112. The first insulating cover 191 is usually made of insulating material, which can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (polyethylene), and PVC (Polyvinyl chloride).

[0178] The second insulating cover 192 can refer to a component that covers the second opening 14121. The second insulating cover 192 seals the second opening 14121, thereby providing insulation protection for the second switch unit 122. The second insulating cover 192 is usually made of insulating material, which can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (polyethylene), and PVC (Polyvinyl chloride).

[0179] The first through hole 1912 may refer to the through hole provided in the first insulating cover 191, and the first through hole 1912 is used for the first terminal 1111 to pass through, so that the first terminal 1111 is exposed to facilitate electrical connection with the first electrical connector 1112.

[0180] The second through hole 1922 can refer to the through hole provided in the second insulating cover 192, and the second through hole 1922 is used for the second terminal 1211 to pass through, so that the second terminal 1211 is exposed to facilitate electrical connection with the second electrical connector 1212.

[0181] In one embodiment, the first relay 1101 further includes a first insulating cover 191, which covers and seals the first opening 14111. The first insulating cover 191 has a first through hole 1912 through which the first terminal 1111 passes. The first insulating cover 191 closes the first opening 14111, thereby providing insulation protection for the first switching unit 112 and improving the reliability of the power distribution device 100.

[0182] In one embodiment, the second relay 1201 further includes a second insulating cover 192, which covers and seals the second opening 14121. The second insulating cover 192 has a second through hole 1922 through which the second terminal 1211 passes. The second insulating cover 192 closes the second opening 14121, thereby providing insulation protection for the second switching unit 122 and improving the reliability of the power distribution device 100.

[0183] In one embodiment, the first relay 1101 further includes a first insulating cover 191, which covers and blocks the first opening 14111. The first insulating cover 191 has a first through hole 1912 through which the first terminal 1111 passes. The second relay 1201 further includes a second insulating cover 192, which covers and blocks the second opening 14121. The second insulating cover 192 has a second through hole 1922 through which the second terminal 1211 passes. By closing the first opening 14111 and the second opening 14121 with the first insulating cover 191 and the second insulating cover 192, the first switching unit 112 and the second switching unit 122 are provided with insulation protection, thereby improving the reliability of the power distribution device 100.

[0184] By adopting the technical solution of this embodiment, the first insulating cover 191 can close the first opening 14111, thereby providing insulation protection for the first switch unit 112. Similarly, the second insulating cover 192 closes the second opening 14121, thereby providing insulation protection for the second switch unit 122, thereby improving the reliability of the power distribution device 100.

[0185] In another embodiment of this application, combined with Figures 6-8 As shown, when the power distribution device 100 includes a first insulating cover 191, the first relay 1101 has a plurality of first electrical connection structures 111. The side of the first insulating cover 191 facing away from the first switch unit 112 is provided with a first insulating isolation part 1911, which is located between two adjacent first electrical connection structures 111. When the power distribution device 100 includes a second insulating cover 192, the first relay 1101 has a plurality of second electrical connection structures 121. The side of the second insulating cover 192 facing away from the second switch unit 122 is provided with a second insulating isolation part 1921, which is located between two adjacent second electrical connection structures 121.

[0186] The first insulating isolation portion 1911 can refer to the portion of the first insulating cover 191 located between two adjacent first electrical connection structures 111. The first insulating isolation portion 1911 can insulatingly separate the two adjacent first electrical connection structures 111, thereby separating the two adjacent first electrical connection structures 111.

[0187] The second insulating isolation portion 1921 may refer to the portion of the second insulating cover 192 located between two adjacent second electrical connection structures 121. The second insulating isolation portion 1921 can insulatingly separate two adjacent second electrical connection structures 121, thereby separating the two adjacent second electrical connection structures 121.

[0188] By adopting the technical solution of this embodiment, the first insulating isolation part 1911 insulates and separates two adjacent first electrical connection structures 111, thereby improving the insulation performance between the two adjacent first electrical connection structures 111, reducing the short-circuit risk of the first relay 1101, and thus improving the reliability of the first relay 1101 and the power distribution device 100. Similarly, the second insulating isolation part 1921 insulates and separates two adjacent second electrical connection structures 121, thereby improving the insulation performance between the two adjacent second electrical connection structures 121, reducing the short-circuit risk of the second relay 1201, and thus improving the reliability of the second relay 1201 and the power distribution device 100.

[0189] In another embodiment of this application, combined with Figure 7 and Figure 8 As shown, an installation gap 1001 is formed between the opposing cavity walls of the first receiving cavity 1411 and the second receiving cavity 1412.

[0190] It is understood that the cavity walls of the first receiving cavity 1411 and the second receiving cavity 1412 are spaced apart and formed with a gap, which is the installation gap 1001.

[0191] By adopting the technical solution of this embodiment, the first relay 1101 and the second relay 1201 can be insulated from each other through the installation gap 1001, which helps to improve the insulation between the first relay 1101 and the second relay 1201, reduce the risk of short circuit, and improve the reliability of the power distribution device 100.

[0192] In another embodiment of this application, combined with Figure 7 and Figure 8 As shown, the first electrical connector 1112 and the second electrical connector 1212 are located on opposite sides of the mounting gap 1001.

[0193] It is understood that the first electrical connector 1112 is located on one side of the opposite sides of the mounting gap 1001, and the second electrical connector 1212 is located on the other side of the opposite sides of the mounting gap 1001.

[0194] By adopting the technical solution of this embodiment, the installation gap 1001 can insulate the first electrical connector 1112 and the second electrical connector 1212, thereby reducing the risk of short circuit and improving the reliability of the power distribution device 100.

[0195] In another embodiment of this application, combined with Figure 14 and Figure 15As shown, when an insulating member 130 is provided between the first electrical connector 1112 and the second electrical connector 1212, the insulating member 130 located between the first electrical connector 1112 and the second electrical connector 1212 is a second insulating member 132; the first electrical connector 1112 includes a first electrical connection segment 11121 and a second electrical connection segment 11122 connected to each other, and the first electrical connection segment 11121 is electrically connected to the first terminal 1111; the second electrical connector 1212 includes a third electrical connection segment 12121 and a fourth electrical connection segment 12122 connected to each other, and the third electrical connection segment 12121 is electrically connected to the second terminal 1211; the second electrical connection segment 11122 and the fourth electrical connection segment 12122 are located in the mounting gap 1001, and the second insulating member 132 is provided between the second electrical connection segment 11122 and the fourth electrical connection segment 12122.

[0196] The first electrical connection segment 11121 can refer to the portion of the first electrical connector 1112 that is electrically connected to the first terminal 1111, and the second electrical connection segment 11122 can refer to the portion of the first electrical connector 1112 located in the mounting gap 1001. For example, the first electrical connection segment 11121 is provided with a first connection hole 11124, and a first bolt 11112 passes through the first connection hole 11124 and is screwed to the first electrical connection portion 11111, thereby realizing the electrical connection between the first electrical connection segment 11121 and the first terminal 1111.

[0197] The third electrical connection segment 12121 can refer to the portion of the second electrical connector 1212 that is electrically connected to the second terminal 1211, and the fourth electrical connection segment 12122 can refer to the portion of the second electrical connector 1212 located in the mounting gap 1001. For example, the third electrical connection segment 12121 is provided with a second connection hole 12124, and a second bolt 12112 passes through the second connection hole 12124 and is screwed to the second electrical connection portion 12111, thereby achieving the electrical connection between the third electrical connection segment 12121 and the second terminal 1211.

[0198] The second insulating component 132 may refer to the insulating component located between the second electrical connection section 11122 and the fourth electrical connection section 12122. The second insulating component 132 is made of insulating material, which may be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (polyethylene), and PVC (Polyvinyl chloride).

[0199] A second insulating element 132 is provided between the second electrical connection section 11122 and the fourth electrical connection section 12122. It can be understood that the second insulating element 132 is located between the second electrical connection section 11122 and the fourth electrical connection section 12122, so that the second insulating element 132 can insulate the second electrical connection section 11122 and the fourth electrical connection section 12122, reduce the short circuit risk of the second electrical connection section 11122 and the fourth electrical connection section 12122, and help improve the reliability of the power distribution device 100.

[0200] By adopting the technical solution of this embodiment, the second electrical connection segment 11122 and the fourth electrical connection segment 12122 are located within the installation gap 1001. The second electrical connection segment 11122 and the fourth electrical connection segment 12122 can utilize the installation gap 1001 as installation space, which is beneficial to improving the structural compactness of the power distribution device 100, reducing the external size of the power distribution device 100, and improving the structural compactness of the electrical equipment and battery and reducing manufacturing costs. In addition, the provision of the second insulating member 132 makes the insulation between the first electrical connection member 1112 and the second electrical connection member 1212 better, reduces the risk of short circuit, and helps to improve the reliability of the power distribution device 100.

[0201] In another embodiment of this application, combined with Figures 16-19 As shown, the second electrical connection segment 11122 is fitted with a first insulating sleeve 133, and the portion of the first insulating sleeve 133 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least forms a portion of the second insulating member 132.

[0202] The first insulating sleeve 133 can refer to an insulating component sleeved on the second electrical connection section 11122. The first insulating sleeve 133 is made of insulating material, which can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (Polyethylene), and PVC (Polyvinyl chloride). The first insulating sleeve 133 has a first through hole, and the second electrical connection section 11122 passes through the first through hole. The second electrical connection section 11122 can be interference-fitted or clearance-fitted with the first through hole. The first insulating sleeve 133 can also be injection molded onto the outside of the second electrical connection section 11122.

[0203] The portion of the first insulating sleeve 133 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least partially forms the second insulating member 132. It is understood that the portion of the first insulating sleeve 133 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 constitutes part of or the entire second insulating member 132. Furthermore, this portion is capable of insulatingly separating the second electrical connection segment 11122 and the fourth electrical connection segment 12122. For example, the portion of the first insulating sleeve 133 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 may refer to the sidewall of the first insulating sleeve 133 facing the fourth electrical connection segment 12122.

[0204] By adopting the technical solution of this embodiment, the second electrical connection segment 11122 is fitted with the first insulating sleeve 133, which can achieve insulation between the second electrical connection segment 11122 and the fourth electrical connection segment 12122. The operation of fitting the first insulating sleeve 133 onto the second electrical connection segment 11122 is simple and conducive to improving the production efficiency of the power distribution device 100. In addition, the simple insulation structure is also conducive to reducing the manufacturing cost of the power distribution device 100.

[0205] In another embodiment of this application, combined with Figure 18 and Figure 19 As shown, the fourth electrical connection segment 12122 is fitted with a second insulating sleeve 134, and the portion of the second insulating sleeve 134 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least forms a portion of the second insulating member 132.

[0206] The second insulating sleeve 134 can refer to an insulating component sleeved on the fourth electrical connection section 12122. The second insulating sleeve 134 is made of insulating material, which can be, but is not limited to, insulating plastics such as PP (Polypropylene), PE (Polyethylene), and PVC (Polyvinyl chloride). The second insulating sleeve 134 has a second through hole, through which the fourth electrical connection section 12122 passes. The fourth electrical connection section 12122 can be interference-fitted or clearance-fitted with the second through hole. The second insulating sleeve 134 can also be injection molded onto the fourth electrical connection section 12122.

[0207] The portion of the second insulating sleeve 134 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least forms a portion of the second insulating member 132. It is understood that the portion of the second insulating sleeve 134 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 constitutes part of or the entire second insulating member 132. Furthermore, this portion is capable of insulatingly separating the second electrical connection segment 11122 and the fourth electrical connection segment 12122. For example, the portion of the second insulating sleeve 134 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 may refer to the sidewall of the second insulating sleeve 134 facing the second electrical connection segment 11122.

[0208] By adopting the technical solution of this embodiment, the second insulating sleeve 134 is sleeved on the fourth electrical connection segment 12122, which can realize the insulation between the second electrical connection segment 11122 and the fourth electrical connection segment 12122. Moreover, the operation of sleeved on the fourth electrical connection segment 12122 with the second insulating sleeve 134 is simple, which is conducive to improving the production efficiency of the power distribution device 100. In addition, the simple insulation structure is also conducive to reducing the manufacturing cost of the power distribution device 100.

[0209] In another embodiment of this application, combined with Figure 18 and Figure 19 As shown, the second electrical connection segment 11122 is fitted with a first insulating sleeve 133, and the portion of the first insulating sleeve 133 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least forms a portion of the second insulating element 132; the fourth electrical connection segment 12122 is fitted with a second insulating sleeve 134, and the portion of the second insulating sleeve 134 located between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 at least forms a portion of the second insulating element 132.

[0210] By adopting the technical solution of this embodiment, the second electrical connection segment 11122 and the fourth electrical connection segment 12122 are insulated by two layers of insulation, namely the first insulating sleeve 133 and the second insulating sleeve 134. The insulation effect between the second electrical connection segment 11122 and the fourth electrical connection segment 12122 is better, the risk of short circuit is lower, and the reliability of the power distribution device 100 is better. In addition, the installation and operation of the first insulating sleeve 133 and the second insulating sleeve 134 are simple, which helps to improve the production efficiency of the power distribution device 100. Furthermore, the simple insulation structure also helps to reduce the manufacturing cost of the power distribution device 100.

[0211] In another embodiment of this application, combined with Figure 15 As shown, the second insulating element 132 and the mounting base 141 are an integral structure.

[0212] The second insulating component 132 and the mounting base 141 are an integral structure. It can be understood that the second insulating component 132 and the mounting base 141 are integrally formed by integral molding. Integral molding refers to the integral molding process such as extrusion, injection molding, and die casting.

[0213] By adopting the technical solution of this embodiment, the second insulating member 132 and the mounting base 141 are integrated into one structure, the connection between the second insulating member 132 and the mounting base 141 is reliable, and the insulation reliability of the second insulating member 132 is good, which is conducive to improving the reliability of the power distribution device 100. In addition, the second insulating member 132 and the mounting base 141 are simple to manufacture, which is conducive to improving production efficiency.

[0214] In another embodiment of this application, combined with Figure 19 As shown, the second insulating element 132 and the mounting base 141 are separate structures.

[0215] It is understood that the first insulating element 131 and the mounting base 141 can be two independent parts. Specifically, the mounting base 141 and the second insulating element 132 can be disconnected, or they can be connected by means of bonding, snap-fitting, screwing, etc. The materials of the mounting base 141 and the second insulating element 132 can be the same or different.

[0216] By adopting the technical solution of this embodiment, the mounting base 141 and the second insulating component 132 are separate structures, and the mounting base 141 and the second insulating component 132 can be flexibly set up, which is convenient for processing and manufacturing.

[0217] In another embodiment of this application, combined with Figure 15 As shown, the first insulating element 131, the second insulating element 132, and the mounting base 141 are an integral structure.

[0218] It is understood that the first insulating component 131, the second insulating component 132, and the mounting base 141 are integrally molded to obtain an integrated structure. Integral molding refers to the use of integral processes such as extrusion, injection molding, or die casting. For example, the mounting base 141 has a protruding structure. The portion of the protruding structure located within the mounting gap 1001 is the second insulating component 132, and the portion protruding from the mounting gap 1001 is the first insulating component 131. This protruding structure can completely separate the first electrical connection structure 111 and the second electrical connection structure 121, which is beneficial for improving the insulation performance between the first electrical connection component 1112 and the second electrical connection component 1212. Furthermore, the manufacturing of the first insulating component 131, the second insulating component 132, and the mounting base 141 is simple, which is beneficial for improving production efficiency. In addition, the protruding structure has a cavity, forming a frame structure. The cavity provides installation space for other components, improving structural compactness and reducing material accumulation, which is beneficial for the lightweight design of the power distribution device 100.

[0219] In another embodiment of this application, combined with Figure 18 and Figure 19 As shown, the first insulating component 131 and the second insulating component 132 are separate structures, while the first insulating component 131 and the mounting base 141 are an integral structure. It can be understood that the first insulating component 131 and the second insulating component 132 can be two independent parts, and can be detached or connected by, but not limited to, methods such as bonding, snap-fitting, or screwing. The materials of the first insulating component 131 and the second insulating component 132 can be the same or different. Furthermore, the first insulating component 131 and the mounting base 141 are integrally molded to obtain an integrated structure. Integral molding refers to the use of integral processes such as extrusion, injection molding, or die casting. For example, the opposing sidewalls of the first insulating sleeve 133 and the second insulating sleeve 134 form a second insulating member 132. The first insulating member 131 is a protruding structure formed by the mounting base 141. The protruding structure is disposed at the opening of the mounting gap 1001 near the first terminal 1111 and seals the opening. The first electrical connection segment 11121 and the first terminal 1111 are located on one side of the first insulating member 131, and the third electrical connection segment 12121 and the second terminal 1211 are located on the other side of the first insulating member 131. The first insulating member 131 has a U-shaped structure. The opposing sidewalls of the U-shaped first insulating member 131 are integrally formed with the opposing cavity walls of the first receiving cavity 1411 and the second receiving cavity 1412. In this way, the first electrical connection segment 11121 and the first terminal 1111 can be completely separated from the third electrical connection segment 12121 and the second terminal 1211, thereby improving the insulation reliability of the first electrical connection structure 111 and the second electrical connection structure 121.

[0220] In one embodiment, combined with Figure 15As shown, the first terminal 1111 and the second terminal 1211 are located outside the mounting gap 1001. In this way, the connection operation space between the first terminal 1111 and the first electrical connector 1112 and the connection operation space between the second terminal 1211 and the second electrical connector 1212 are staggered from the mounting gap 1001. This can reduce the distance between the first electrical component 110 and the second electrical component 120, thereby improving the structural compactness of the electrical component arrangement in the power distribution device 100 and reducing the overall size of the power distribution device 100.

[0221] In one embodiment, combined with Figure 15 As shown, the first electrical component 110 and the second electrical component 120 are arranged in one direction (Y direction). Other electrical components in the power distribution device 100 are located on the side of the first electrical component 110 facing away from the second electrical component 120, or on the side of the second electrical component 120 facing away from the first electrical component 110. This arrangement makes the power distribution device 100 elongated, allowing it to be installed in some narrow spaces within electrical equipment and batteries, thereby improving the space utilization rate within the electrical equipment and batteries, enhancing the structural compactness of the electrical equipment and batteries, and reducing manufacturing costs.

[0222] In one embodiment, combined with Figure 11 , Figure 12 and Figure 13 As shown, the mounting base 141 is covered by a first housing cover 142. A third electrical connector 151 is embedded within the first housing cover 142. The third electrical connector 151 is used to electrically connect the first electrical device 110, the second electrical device 120, and other electrical devices. The first electrical device 110, the second electrical device 120, and other electrical devices are electrically connected through one or more third electrical connectors 151. Furthermore, since the third electrical connector 151 is embedded within the first housing cover 142, during assembly, while the first housing cover 142 is placed over the mounting base 141, the third electrical connector 151 is electrically plugged into the electrical devices within the power distribution device 100, making the assembly of the power distribution device 100 simpler and faster. The third electrical connector 151 is made of conductive materials such as copper or aluminum; for example, the third electrical connector 151 is made of copper.

[0223] In one embodiment, combined with Figure 8 and Figure 9As shown, the mounting base 141 has multiple receiving cavities. The electrical components of the power distribution device 100 are installed in each receiving cavity, and the openings of each cavity face different directions. The first cover 142 can cover part of the opening of the receiving cavity. The mounting base 141 is covered by a second cover 143, which also covers part of the opening of the receiving cavity. An insulating heat-conducting element 170 is provided on the side of the second cover 143 facing away from the mounting base 141. The second cover 143 also has a receiving hole 1431, which can accommodate a first electrical connector 1112, allowing the first electrical connector 1112 to contact the insulating heat-conducting element 170 to improve heat dissipation efficiency. The receiving hole 1431 can also accommodate a second electrical connector 1212, allowing the second electrical connector 1212 to contact the insulating heat-conducting element 170 to improve heat dissipation efficiency. The insulating heat-conducting element 170 can be made of insulating heat-conducting materials such as ceramic or silicone.

[0224] To clearly illustrate the technical solution of this application, some BDU structures are used as examples.

[0225] Example 1 In this embodiment, combined with Figures 5-13 As shown, the power distribution unit 100 is a BDU. The first electrical component 110 is a main positive relay 1102, and the second electrical component 120 is a main negative relay 1202. The power distribution unit 100 also includes a mounting base 141, a first housing 142, a second housing 143, a pre-charging resistor 182, a fuse 181, and a pre-charging relay 183. The fuse 181, the main positive relay 1102, and the main negative relay 1202 are distributed sequentially from left to right. The pre-charging relay 183 and the pre-charging resistor 182 are located in front of the fuse 181 and are arranged from left to right. This arrangement makes the power distribution unit 100 elongated and more compact. The mounting base 141 forms... The device has a first receiving cavity 1411, a second receiving cavity 1412, a third receiving cavity 1413, and a fourth receiving cavity 1414. A main positive relay 1102, a main negative relay 1202, and a fuse 181 are respectively installed in the first receiving cavity 1411, the second receiving cavity 1412, and the third receiving cavity 1413. The first opening 14111 of the first receiving cavity 1411 and the second opening 14121 of the second receiving cavity 1412 are arranged rearward, and the opening of the third receiving cavity 1413 is arranged downward. A second cover 143 is placed on the lower side of the mounting base 141 and seals the openings of the first opening 14111, the second opening 14121, and the third receiving cavity 1413, thereby achieving insulation protection for the electrical components of the power distribution device 100.

[0226] In this embodiment, the main positive relay 1102 and the main negative relay 1202 are shell-less relays. The cavity wall of the second receiving cavity 1412 forms the shell of the main positive relay 1102, and the cavity wall of the third receiving cavity 1413 forms the shell of the main negative relay 1202.

[0227] In this embodiment, the main positive relay 1102 after shell removal includes a first switching unit 112 and a first electrical connection structure 111. The first switching unit 112 is located in the first receiving cavity 1411. The first electrical connection structure 111 extends from the rear end of the first switching unit 112. The first electrical connection structure 111 includes a first terminal 1111 and a first electrical connector 1112. Each first terminal 1111 includes a first electrical connection portion 11111 and a first bolt 11112. The first electrical connection portion 11111 is connected to the main positive relay 1102. The contacts of the relay 1102 are electrically connected. The rear end of the main positive relay 1102 is fitted with a first insulating cover 191. The first insulating cover 191 has a first through hole 1912. The first electrical connection part 11111 passes through the two first through holes 1912 respectively. The first electrical connection part 1112 is electrically connected to the first electrical connection part 11111 by the first bolt 11112. The first insulating cover 191 can close the first opening 14111, thereby realizing the insulation protection of the first switching unit 112.

[0228] In this embodiment, the main negative relay 1202 after shell removal includes a second switching unit 122 and a second electrical connection structure 121. The second switching unit 122 is located in the second receiving cavity 1412. The second electrical connection structure 121 extends from the rear end of the second switching unit 122. Each second electrical connection structure 121 includes a second terminal 1211 and a second electrical connector 1212. Each second terminal 1211 includes a second electrical connection portion 12111 and a second bolt 12112. The second electrical connection portion 12111 is connected to the main negative relay 1202. The contacts of the positive relay 1102 are electrically connected. The rear end of the main positive relay 1102 is fitted with a second insulating cover 192. The second insulating cover 192 has a second through hole 1922. The second electrical connection part 12111 passes through the two second through holes 1922 respectively. The second electrical connection part 1212 is electrically connected to the second electrical connection part 12111 by the second bolt 12112. The second insulating cover 192 can close the second opening 14121, thereby realizing the insulation protection of the second switching unit 122.

[0229] In this embodiment, the first electrical connector 1112 extends from the first terminal 1111 along the outer surface of the rear and lower sidewalls of the first receiving cavity 1411 to the front side of the mounting base 141 to facilitate electrical connection with external electrical devices; the second electrical connector 1212 extends from the second terminal 1211 along the outer surface of the rear and lower sidewalls of the second receiving cavity 1412 to the front side of the mounting base 141 to facilitate electrical connection with external electrical devices.

[0230] In this embodiment, the portion of the first electrical connector 1112 located behind the first receiving cavity 1411 is the first electrical connection segment 11121; the portion of the first electrical connector 1112 located below the first receiving cavity 1411 is the second electrical connection segment 11122; and the portion of the first electrical connector 1112 located in front of the first receiving cavity 1411 is the fifth electrical connection segment 11123. The portion of the second electrical connector 1212 located behind the second receiving cavity 1412 is the third electrical connection segment 12121; and the portion of the second electrical connector 1212 located in the second receiving cavity... The lower part of 1412 is the fourth electrical connection section 12122, and the part of the second electrical connector 1212 located in front of the second receiving cavity 1412 is the sixth electrical connection section 12123; the first electrical connection section 11121 is provided with a first connection hole 11124, the third electrical connection section 12121 is provided with a second connection hole 12124, the first bolt 11112 passes through the first connection hole 11124 and is screwed to the first electrical connection part 11111, and the second bolt 12112 passes through the second connection hole 12124 and is screwed to the second electrical connection part 12111.

[0231] In this embodiment, there are two first terminals 1111. One first terminal 1111 is electrically connected to the first electrical connection segment 11121, and the other first terminal 1111 is electrically connected to one end of the fourth electrical connector 152. The other end of the fourth electrical connector 152 is electrically connected to the fuse 181. A first insulating isolation part 1911 is provided on the rear side of the first insulating cover 191. The first insulating isolation part 1911 is located between the two first terminals 1111, insulatingly separating the two first terminals 1111, the first electrical connection segment 11121, and the fourth electrical connector 152, thereby achieving insulating separation between the two first terminals 1111 of the main positive relay 1102.

[0232] In this embodiment, there are two second terminals 1211. One second terminal 1211 is electrically connected to the third electrical connection segment 12121, and the other second terminal 1211 is electrically connected to one end of the fifth electrical connector 153. The other end of the fifth electrical connector 153 is electrically connected to other electrical components. A second insulating isolation part 1921 is provided on the rear side of the second insulating cover 192. The second insulating isolation part 1921 is located between the two second terminals 1211, insulatingly separating the two second terminals 1211, the third electrical connection segment 12121, and the fifth electrical connector 153, thereby achieving insulating separation between the two second terminals 1211 of the main negative relay 1202. The fourth electrical connector 152 and the fifth electrical connector 153 are made of conductive materials such as copper and aluminum; for example, copper.

[0233] In this embodiment, an installation gap 1001 is formed between the opposing cavity walls of the first receiving cavity 1411 and the second receiving cavity 1412. The second electrical connection segment 11122 and the fourth electrical connection segment 12122 are located on opposite sides of the installation gap 1001 and are separated by the installation gap 1001, thereby achieving insulation separation between the second electrical connection structure 121 and the fourth electrical connection structure. In addition, a first insulating member 131 is provided between the first electrical connection segment 11121 and the second electrical connection segment 11122, and the first insulating member 131 has a U-shaped structure. The opposite side walls of the U-shaped first insulating member 131 are integrally formed with the opposing cavity walls of the first receiving cavity 1411 and the second receiving cavity 1412. In this way, the first electrical connection segment 11121 and the first terminal 1111 can be completely separated from the third electrical connection segment 12121 and the second terminal 1211, thereby improving the insulation reliability of the first electrical connection structure 111 and the second electrical connection structure 121.

[0234] In this embodiment, the bottom of the second cover 143 is provided with a plurality of receiving holes 1431, and the bottom of the second cover 143 is also provided with an insulating heat-conducting element 170. The second electrical connection segment 11122 is located in the receiving hole 1431 and is in direct contact with the insulating heat-conducting element 170 to improve the heat dissipation effect. Similarly, the fourth electrical connection segment 12122 is located in the receiving hole 1431 and is in direct contact with the insulating heat-conducting element 170. Of course, the fourth electrical connection 152 and the fifth electrical connection 153 may also be partially located in the corresponding receiving hole 1431 and in direct contact with the insulating heat-conducting element 170 to improve the heat dissipation effect. In addition, the electrical connections led out from the fuse 181, the pre-charge resistor 182 and the pre-charge relay 183 may also be at least partially located in the corresponding receiving hole 1431 and in direct contact with the insulating heat-conducting element 170 to improve the heat dissipation effect.

[0235] In this embodiment, the first cover 142 is provided with a perimeter 1421, which forms a fifth receiving cavity 1422. The pre-charge relay 183 and the pre-charge resistor 182 are located in the fifth receiving cavity 1422. An insulating isolation plate 1425 is formed between the pre-charge relay 183 and the pre-charge resistor 182. The insulating isolation plate 1425 divides the fifth receiving cavity 1422 into a sixth receiving cavity 1423 and a seventh receiving cavity 1424. The pre-charge relay 183 and the pre-charge resistor 182 are respectively installed in the sixth receiving cavity 1423 and the seventh receiving cavity 1424. The perimeter 1421 is provided with a buckle 14211, which is used to fix the pre-charge relay 183 and the pre-charge resistor 182 to facilitate subsequent assembly. The insulating isolation plate 1425 insulates the pre-charge relay 183 and the pre-charge resistor 182.

[0236] In this embodiment, the first cover 142 is fitted onto the bottom of the mounting base 141, and the perimeter 1421 is inserted into the fourth receiving cavity 1414. A plurality of third electrical connectors 151 are embedded in the first cover 142. During the process of fixing the precharge relay 183 and the precharge resistor 182 in the perimeter 1421, the precharge relay 183 and the precharge resistor 182 will be electrically connected to the corresponding third electrical connectors 151. At the same time as the first cover 142 is placed on the mounting base 141, the fuse 181, the main positive relay 1102 and the main negative relay 1202 will be electrically connected to the corresponding third electrical connectors 151, thereby electrically connecting the fuse 181, the main positive relay 1102, the main negative relay 1202, the precharge relay 183 and the precharge resistor 182 of the power distribution device 100. The electrical connection structure between each electrical component in the power distribution device 100 and the third electrical connector 151 can be the same. Taking the electrical connection between the precharge relay 183 and the corresponding third electrical connector 151 as an example, the plug-in terminal 1831 of the precharge relay 183 is electrically plugged into the end of the corresponding third electrical connector 151 that is exposed outside the first housing cover 142. Of course, the electrical connection structure between each electrical component in the power distribution device 100 and the third electrical connector 151 can also be different. The plug-in terminal 1831 can be a control terminal led out from the coil of the precharge relay 183, or a high-voltage sampling terminal led out from the precharge relay 183, etc.

[0237] Example 2 Combination Figure 14 and Figure 15As shown, this embodiment differs from Embodiment 1 in that the fuse 181, the main positive relay 1102, and the main negative relay 1202 are arranged sequentially from left to right, while the pre-charge relay 183 and the pre-charge resistor 182 are located behind the fuse 181 and are arranged from left to right. This arrangement helps to make the power distribution device 100 elongated and more compact. The mounting base 141 has a first receiving cavity 1411, a second receiving cavity 1412, a third receiving cavity 1413, a fourth receiving cavity 1414, and a fifth receiving cavity 1422. The main positive relay 1102, the main negative relay 1202, the fuse 181, and the pre-charge relay 183 are arranged sequentially from left to right. 83 and pre-charge resistor 182 are respectively installed in the first receiving cavity 1411, the second receiving cavity 1412, the third receiving cavity 1413, the fourth receiving cavity 1414 and the fifth receiving cavity 1422. The first opening 14111 of the first receiving cavity 1411 and the second opening 14121 of the second receiving cavity 1412 are arranged facing forward. The openings of the third receiving cavity 1413, the fourth receiving cavity 1414 and the fifth receiving cavity 1422 are arranged facing upward. The second cover 143 is covered on the upper side of the mounting base 141 and seals the first opening 14111, the second opening 14121, the third receiving cavity 1413, the fourth receiving cavity 1414 and the fifth receiving cavity 1422.

[0238] In this embodiment, the second electrical connection segment 11122 and the fourth electrical connection segment 12122 are located in the mounting gap 1001. The insulating member 130 is located inside the mounting gap 1001 and protrudes outside the mounting gap 1001. The portion of the insulating member 130 protruding outside the mounting gap 1001 forms the first insulating member 131, and the first insulating member 131 is located between the first terminal 1111 and the second terminal 1211. The portion of the insulating member 130 located inside the mounting gap 1001 forms the second insulating member 132, and the second insulating member 132 is located in the second electrical connection segment. Between 11122 and the fourth electrical connection section 12122, the first electrical connection structure 111 and the second electrical connection structure 121 can be completely insulated and separated. The first electrical connection structure 111 and the second electrical connection structure 121 have good insulation, which is beneficial to improving the reliability of the power distribution device 100. The first insulating component 131, the second insulating component 132 and the mounting base 141 are integrally injection molded structures and form a whole. The insulating component 130 has a frame structure, and the space formed by the hollow middle part can be used to install other components, which can also reduce the weight of the power distribution device 100.

[0239] In this embodiment, the BDU also includes a connector 160, which is mounted on the rear side of the mounting base 141, and is electrically connected to the rear end of the second electrical connection segment 11122 and the rear end of the fourth electrical connection segment 12122.

[0240] Example 3 Combination Figures 16-19 As shown, this embodiment differs from Embodiment 1 in that the second electrical connection segment 11122 and the fourth electrical connection segment 12122 are located in the mounting gap 1001, and a seventh electrical connection segment 11125 is connected between the first electrical connection segment 11121 and the second electrical connection segment 11122. The seventh electrical connection segment 11125 is located below the lower cavity wall of the first receiving cavity 1411, thus connecting the first electrical connection segment 11121 located on the rear side and the second electrical connection segment 11122 located in the mounting gap 1001 together; an eighth electrical connection segment 12125 is connected between the third electrical connection segment 12121 and the fourth electrical connection segment 12122, and the eighth electrical connection segment 12125 is located in the second receiving cavity. Below the lower cavity wall of 1412, the third electrical connection segment 12121 located on the rear side and the fourth electrical connection segment 12122 located in the installation gap 1001 are connected together; the seventh electrical connection segment 11125 is located in the receiving hole 1431 and is in direct contact with the insulating heat-conducting element 170 to improve the heat dissipation effect; similarly, the eighth electrical connection segment 12125 is located in the receiving hole 1431 and is in direct contact with the insulating heat-conducting element 170; the second electrical connection segment 11122 is fitted with the first insulating sleeve 133, and the fourth electrical connection segment 12122 is fitted with the second insulating sleeve 134. The right side wall of the first insulating sleeve 133 and the left side wall of the second insulating sleeve 134 together form the second insulating element 132.

[0241] In this embodiment, the BDU also includes a connector 160, which is mounted on the front side of the mounting base 141, and the front end of the second electrical connection segment 11122 and the front end of the fourth electrical connection segment 12122 are electrically connected.

[0242] In another embodiment of this application, a battery 1100 is provided, including a power distribution device 100 as described in the above embodiment.

[0243] In another embodiment of this application, an electrical device is provided, including a power distribution device 100 as described in the above embodiment; and / or, including a battery 1100 as described in the above embodiment.

[0244] The description of the various embodiments above tends to emphasize the differences between the various embodiments. The similarities or similarities between them can be referred to, and for the sake of brevity, they will not be repeated here.

[0245] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and should be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A power distribution device, wherein, include: The first electrical component has a first electrical connection structure; The second electrical device has a second electrical connection structure, wherein the first electrical connection structure and the second electrical connection structure are spaced apart. An insulating element is provided between the first electrical connection structure and the second electrical connection structure.

2. The power distribution device according to claim 1, wherein: The insulating element is provided at the position where the first electrical connection structure and the second electrical connection structure are closest.

3. The power distribution device according to claim 2, wherein: The distance between the first electrical connection structure and the second electrical connection structure at the point where they are closest ranges from 3mm to 9mm.

4. The power distribution device according to claim 3, wherein: The distance between the first electrical connection structure and the second electrical connection structure at the point where they are closest is between 3mm and 6mm.

5. The power distribution device according to claim 2, wherein: The first electrical connection structure includes a first terminal and a first electrical connector, wherein the first electrical connector is electrically connected to the first terminal; the second electrical connection structure includes a second terminal and a second electrical connector, wherein the second electrical connector is electrically connected to the second terminal. When the first electrical connection structure and the second electrical connection structure are located between the first terminal and the second terminal at the position where the distance between them is the shortest, the insulating member is provided between the first terminal and the second terminal; When the first electrical connection structure and the second electrical connection structure are located between the first electrical connector and the second electrical connector at the shortest distance position, the insulating member is provided between the first electrical connector and the second electrical connector.

6. The power distribution device according to claim 1, wherein: The first electrical connection structure includes a first terminal and a first electrical connector, wherein the first electrical connector is electrically connected to the first terminal; the second electrical connection structure includes a second terminal and a second electrical connector, wherein the second electrical connector is electrically connected to the second terminal. The insulating element is provided between the first terminal and the second terminal, and the insulating element is provided between the first electrical connector and the second electrical connector.

7. The power distribution device according to claim 5 or 6, wherein: The first electrical component is a first relay, and the first terminal is a connection terminal led out from the contacts of the first relay. The second electrical component is a second relay, and the second terminal is a connection terminal led out from the contacts of the second relay.

8. The power distribution device according to claim 7, wherein: The power distribution device further includes a mounting base, which has a first receiving cavity and a second receiving cavity. The first relay further includes a first switching unit, which is electrically connected to the first terminal and is exposed in the first receiving cavity. The second relay includes a second switching unit, which is electrically connected to the second terminal and is exposed in the second receiving cavity.

9. The power distribution device according to claim 8, wherein: The first receiving cavity has a first opening, the second receiving cavity has a second opening, the first opening and the second opening are located on the same side of the mounting base, the first terminal protrudes from the first opening, and the second terminal protrudes from the second opening.

10. The power distribution device according to claim 9, wherein: When the insulating member is provided between the first terminal and the second terminal, the insulating member located between the first terminal and the second terminal is a first insulating member. The projection of the first insulating member along the first direction covers the projection of the portion of the first terminal protruding from the first opening along the first direction. The first direction is the distribution direction of the first terminal and the second terminal. And / or, the projection of the first insulating member along the first direction covers the projection of the portion of the second terminal protruding from the second opening along the first direction, where the first direction is the distribution direction of the first terminal and the second terminal.

11. The power distribution device according to claim 9, wherein: When the insulating member is provided between the first terminal and the second terminal, the insulating member located between the first terminal and the second terminal is a first insulating member. In a second direction, the first insulating member protrudes relative to the first terminal. The second direction intersects with the first direction, and the first direction is the distribution direction of the first terminal and the second terminal. And / or, in a second direction, the first insulating member protrudes relative to the second terminal, the second direction intersects the first direction, and the first direction is the distribution direction of the first terminal and the second terminal.

12. The power distribution device according to claim 11, wherein: When the first insulating member protrudes from the first terminal, the protrusion height of the first insulating member relative to the first terminal is H1, where 5mm≤H1≤30mm; When the first insulating member protrudes from the second terminal, the protrusion height of the first insulating member relative to the second terminal is H2, wherein 5mm≤H2≤30mm.

13. The power distribution device according to any one of claims 10 to 12, wherein: The first insulating element and the mounting base are an integral structure.

14. The power distribution device according to any one of claims 10 to 12, wherein: The power distribution device further includes a first insulating cover, which covers and seals the first opening. The first insulating cover has a first through hole, and the first terminal passes through the first through hole. And / or, the power distribution device further includes a second insulating cover, which covers and seals the second opening, and the second insulating cover has a second through hole through which the second terminal passes.

15. The power distribution device according to claim 14, wherein: When the power distribution device includes a first insulating cover, the first relay has a plurality of first electrical connection structures, and the side of the first insulating cover facing away from the first switch unit is provided with a first insulating isolation part, which is located between two adjacent first electrical connection structures. When the power distribution device includes a second insulating cover, the first relay has a plurality of second electrical connection structures, and the second insulating cover has a second insulating isolation portion on the side facing away from the second switch unit, and the second insulating isolation portion is located between two adjacent second electrical connection structures.

16. The power distribution device according to any one of claims 8 to 12, wherein: An installation gap is formed between the opposing cavity walls of the first and second receiving cavities.

17. The power distribution device according to claim 16, wherein: The first electrical connector and the second electrical connector are located on opposite sides of the mounting gap.

18. The power distribution device according to claim 16, wherein: When the insulating member is provided between the first electrical connector and the second electrical connector, the insulating member located between the first electrical connector and the second electrical connector is the second insulating member; The first electrical connector includes a first electrical connection segment and a second electrical connection segment connected to each other, wherein the first electrical connection segment is electrically connected to the first terminal; The second electrical connector includes a third electrical connection segment and a fourth electrical connection segment connected to each other, wherein the third electrical connection segment is electrically connected to the second terminal; The second electrical connection segment and the fourth electrical connection segment are located in the installation gap, and the second insulating element is provided between the second electrical connection segment and the fourth electrical connection segment.

19. The power distribution device according to claim 18, wherein: The second electrical connection segment is fitted with a first insulating sleeve, and the portion of the first insulating sleeve located between the second electrical connection segment and the fourth electrical connection segment at least forms a portion of the second insulating element; And / or, the fourth electrical connection segment is fitted with a second insulating sleeve, the portion of the second insulating sleeve located between the second electrical connection segment and the fourth electrical connection segment forming at least a portion of the second insulating element.

20. The power distribution device according to claim 18 or 19, wherein: The second insulating element and the mounting base are an integral structure; or, the second insulating element and the mounting base are separate structures.

21. A battery, wherein, Includes the power distribution device as described in any one of claims 1 to 20.

22. An electrical appliance, wherein, Includes the power distribution device according to any one of claims 1 to 20; and / or includes the battery according to claim 21.

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