Contact structure, electric appliance element, battery power distribution unit, battery pack and power utilization device

Abstract

The utility model discloses a contact structure, an electric appliance element, a battery power distribution unit, a battery pack and an electric device, and relates to the field of electric appliance accessories. The contact structure comprises a cap body and a contact column, the cap body is provided with a first threaded connection part and a plugging part, and the plugging part is used for being connected with a busbar in a plugging manner; two opposite ends of the contact column are respectively a second threaded connection part and a static contact surface, and the static contact surface is used for being in contact conduction with a movable contact of an electrical apparatus element; wherein one of the first threaded connection part and the second threaded connection part is a threaded hole, and the other one is a stud matched in the threaded hole. The contact structure provided by the embodiment of the utility model is good in internal contact and high in binding force, and is helpful for improving the reliability and safety of an electrical system.

Description

Technical Field

[0001] This utility model relates to the field of electrical accessories, specifically to a contact structure, electrical components, battery power distribution unit, battery pack, and electrical device. Background Technology

[0002] In some existing technologies, to reduce costs and accommodate connections with aluminum busbars, relay contact structures include both copper and aluminum components. However, due to the difference in thermal expansion coefficients between copper and aluminum, the joint between the copper and aluminum components can loosen over long-term use, leading to increased contact resistance, poor contact, and other adverse effects.

[0003] Therefore, there is room for improvement in the contact structure. Utility Model Content

[0004] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, the first aspect of the present invention aims to provide a contact structure with good internal contact and high bonding force, which helps to improve the reliability of electrical systems.

[0005] The second aspect of this utility model aims to provide an electrical component having the above-mentioned contact structure.

[0006] The objective of the third aspect of this utility model is to provide a battery power distribution unit having the aforementioned electrical components.

[0007] The fourth aspect of this utility model aims to provide a battery pack having the aforementioned battery power distribution unit.

[0008] The fifth aspect of this utility model aims to provide an electrical device having the aforementioned battery pack.

[0009] According to a first aspect embodiment of the present invention, a contact structure includes: a cap body and a contact post. The cap body is provided with a first threaded connection portion and a plug-in portion, the plug-in portion being used for plugging into a busbar. The two opposite ends of the contact post are a second threaded connection portion and a stationary contact surface, the stationary contact surface being used for contacting and conducting with the moving contact of an electrical component. One of the first threaded connection portion and the second threaded connection portion is a threaded hole, and the other is a stud fitted into the threaded hole.

[0010] According to the contact structure of this utility model embodiment, a stable connection is achieved between the cap body and the contact post through a threaded connection, reducing the risk of loosening due to vibration or external stress and improving the reliability of the contact structure. Furthermore, this threaded connection method also increases the conductive contact area to a certain extent, thereby enhancing the electrical contact performance of the contact structure, improving current transmission efficiency, and ultimately contributing to improving the reliability of the electrical system.

[0011] According to some optional embodiments of the present invention, the threaded hole is a blind hole, and the end face of the stud is in contact with the bottom surface of the threaded hole.

[0012] In some alternative embodiments, a boss is provided on the outer periphery of the contact post, the boss being used to connect to the support member of the contact structure.

[0013] Furthermore, the opposite two sides of the boss are a first platform and a second platform, respectively; the first platform contacts the cap body; and the second platform is provided with a groove for buffering.

[0014] Specifically, the connector includes a plug.

[0015] More specifically, the connector further includes a barb provided on at least one side of the plug.

[0016] According to some optional embodiments of the present invention, the cap body is sheet-shaped, and the first threaded connection portion is provided on one of the two largest surfaces of the cap body, and the insertion portion is provided on the adjacent side of the largest surface.

[0017] Alternatively, the cap body can be a square piece or a circular piece.

[0018] According to a second aspect of the present invention, the electrical component includes at least one of a relay and a fuse; the electrical component includes: a housing, a moving contact, and a contact structure. The moving contact is disposed within the housing; the contact post is disposed on the housing; one end of the contact structure having the stationary contact surface is located within the housing and opposite to the moving contact; the cap is located outside the housing. The contact structure adopts the contact structure of the first aspect of the present invention.

[0019] A battery power distribution unit according to a third aspect of the present invention includes: electrical components and a bus as described in a second aspect of the present invention; the bus is provided with a mating portion that mates with the connector portion.

[0020] Furthermore, the mating part is a socket provided on one side of the busbar, and the insertion part is inserted into the socket; wherein, at least one of the side of the cap body where the insertion part is located and the end face of the insertion part is in contact with and connected to the busbar.

[0021] Furthermore, the insertion hole includes at least two hole segments arranged sequentially along the depth direction of the insertion hole, and the width of the hole segments increases sequentially from the opening of the insertion hole to the bottom wall of the hole; the connector is provided with at least one barb for each hole segment, and the length of the barb increases sequentially from the opening of the insertion hole to the bottom wall of the hole.

[0022] The battery pack according to a fourth aspect of the present invention includes the battery power distribution unit described in the third aspect of the present invention.

[0023] The electrical device according to a fifth aspect of the present invention includes the battery pack described in the fourth aspect of the present invention.

[0024] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0026] Figure 1 This is an exploded view of the contact structure in some embodiments of the present invention;

[0027] Figure 2 These are schematic diagrams of the electrical components in some embodiments of this utility model;

[0028] Figure 3 This is an exploded view of the electrical components and busbars in the battery power distribution unit in some embodiments of this utility model;

[0029] Figure 4 for Figure 3 Sectional view at point AA;

[0030] Figure 5 This is a schematic diagram showing the interaction between electrical components and busbars in some embodiments of the present invention in the battery power distribution unit;

[0031] Figure 6 for Figure 5 Sectional view at point BB;

[0032] Figure 7 This is an exploded view of the electrical components and busbars in the battery power distribution unit in some embodiments of the present invention;

[0033] Figure 8 for Figure 7 Sectional view at CC;

[0034] Figure 9 This is a schematic diagram showing the interaction between electrical components and busbars in a battery power distribution unit in some embodiments of the present invention;

[0035] Figure 10 for Figure 9 Sectional view at point DD.

[0036] Figure label:

[0037] Battery power distribution unit 1000

[0038] Electrical components 100

[0039] Contact structure 1, cap 11, first threaded connection part 111, insertion part 112, insertion post 1121, barb 1122, contact post 12, second threaded connection part 122, stationary contact surface 124, boss 126, first platform 1261, second platform 1262, slot 12621, support member 14.

[0040] 3. Shell

[0041] Moving contact 5

[0042] Busbar 200, mating part 201, socket 202. Detailed Implementation

[0043] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0044] In the description of this utility model, it should be understood that the terms "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0045] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] The following is for reference. Figures 1-10The contact structure 1 according to a first aspect embodiment of the present invention is described. It is worth noting that one side of the contact structure 1 of this application is connected to the busbar 200, and the other side is in contact with an electrical component, thereby forming a continuous circuit path.

[0047] like Figure 1 As shown, the contact structure 1 includes: a cap body 11 and a contact post 12.

[0048] Optionally, the cap 11 and the contact post 12 can be made of the same or different materials. In some technical solutions, the cap 11 is made of aluminum, and the contact post 12 is made of copper. In some other optional embodiments, both the cap 11 and the contact post 12 are made of copper. For ease of explanation, the following description will use the example of the cap 11 and the contact post 12 being made of different materials, and will not be repeated hereafter.

[0049] Continue reading Figure 1 The cap body 11 is provided with a first threaded connection part 111 and a plug-in part 112. The plug-in part 112 is used to connect with the busbar 200. The two opposite ends of the contact post 12 are a second threaded connection part 122 and a stationary contact surface 124, respectively. The stationary contact surface 124 is used to make contact with the moving contact 5 of the electrical component to conduct electricity.

[0050] The first threaded connection 111 and the second threaded connection 122 are connected to achieve a stable connection between the cap 11 and the contact post 12, effectively reducing the risk of loosening due to vibration or external stress and improving the reliability of the contact structure 1. The threaded connection not only ensures an effective mechanical connection between the cap 11 and the contact post 12, but also increases the conductive contact area between them, thereby enhancing the point contact performance of the contact structure 1 and improving current transmission efficiency.

[0051] In this part, one of the first threaded connection part 111 and the second threaded connection part 122 is a threaded hole, and the other is a stud that fits into the threaded hole.

[0052] First, the threaded engagement between the threaded hole and the stud simplifies the installation process; simply screwing the stud into the threaded hole achieves a secure connection between the cap 11 and the contact post 12.

[0053] Secondly, when the cap body 11 and the contact post 12 are made of different materials, the threaded connection can reduce or even avoid loosening or poor contact caused by thermal expansion and contraction, thereby improving the safety and stability of the electrical connection.

[0054] Furthermore, the threaded connection structure has more contact points, which helps to increase the actual conductive contact area between the cap 11 and the contact post 12, reducing contact resistance. This not only enhances the efficiency and stability of current transmission between the cap 11 and the contact post 12, but also further ensures the safety and reliability of the electrical connection, reducing heat accumulation and potential arcing risks caused by poor contact.

[0055] In addition, threaded connections can be easily disassembled and reinstalled, facilitating maintenance and repair.

[0056] In some specific technical solutions, such as Figure 1 As shown, the first threaded connection portion 111 of the cap body 11 is a threaded hole, and the second threaded connection portion 122 of the contact post 12 is a stud. During assembly, the stud portion of the contact post 12 is screwed into the threaded hole of the cap body 11, and the two are firmly connected by rotating and tightening, which ensures both the stability of the mechanical connection and the continuity and stability of the current conduction path.

[0057] In some alternative technical solutions, the first threaded connection portion 111 of the cap body 11 is a stud, and the second threaded connection portion 122 of the contact post 12 is a threaded hole. This configuration can also achieve a reliable mechanical connection between the cap body 11 and the contact post 12, ensuring the continuity and stability of the current conduction path.

[0058] According to some optional embodiments of this utility model, the threaded hole is a blind hole, and the end face of the stud contacts the bottom surface of the threaded hole. This creates an additional planar contact area between the end face of the stud and the bottom surface of the threaded hole, thereby increasing the conductive contact area between the cap 11 and the contact post 12, which facilitates increased current flow and further enhances the stability and reliability of the conductive path. Simultaneously, by increasing the contact area, it also helps to reduce the contact resistance between the cap 11 and the contact post 12, ensuring efficient and safe current transmission.

[0059] In some alternative embodiments, see Figure 1 The outer periphery of the contact post 12 is provided with a boss 126, which is used to connect the support member 14 of the contact head structure 1.

[0060] The boss 126 is used to connect the support member 14, providing additional mechanical support for the contact post 12. This design significantly improves the stability of the contact post 12 when it is subjected to external forces such as impact or vibration, thus ensuring a more robust and reliable connection between it and the cap 11. By enhancing the structural stability, this arrangement effectively prevents loosening or displacement caused by external forces, ensuring the durability and safety of the electrical connection. The annular boss 126 allows the contact post 12 to distribute stress evenly across its contact surface when subjected to external forces (such as vibration or impact), preventing stress concentration at a single point and reducing the risk of localized deformation or damage. This uniform stress distribution extends the service life of the contact post 12, thereby improving the reliability of the contact structure 1.

[0061] Optionally, the support member 14 is an insulating member. On the one hand, the insulating support member 14 can effectively prevent current leakage and ensure electrical safety; on the other hand, the insulating support member 14 can reduce unnecessary short-circuit risks, ensure the normal operation of the contact structure 1, and improve the reliability of the contact structure 1.

[0062] Alternatively, the support component 14 can be made of plastic or ceramic.

[0063] When the support member 14 is made of plastic, it offers advantages in terms of good insulation and lightweight design. When the support member 14 is made of ceramic, it provides higher heat resistance and mechanical strength. Both materials effectively isolate electrical paths, prevent short circuits, and provide stable support for the contact post 12.

[0064] According to some alternative embodiments, such as Figure 1 and Figure 2 As shown, the opposite two surfaces of the boss 126 are a first platform 1261 and a second platform 1262, respectively. The first platform 1261 contacts the cap 11, forming an additional contact area to ensure that current can pass through efficiently and stably. By increasing the contact area, the contact resistance can also be effectively reduced, thus reducing energy loss and heat generation caused by poor contact. In addition, the larger contact area also helps to distribute the pressure applied at the connection, improving the connection reliability between the contact post 12 and the boss 126, thereby extending the service life of the contact structure 1.

[0065] The second platform 1262 is provided with a slot 12621 for cushioning. Specifically, the slot 12621 can alleviate the stress generated during the connection between the support member 14 and the contact post 12. Especially when the support member 14 and the contact post 12 are connected by welding, the slot 12621 can absorb the thermal and mechanical stress generated during welding, reduce the risk of deformation and cracking, and improve the stability and reliability of the overall structure.

[0066] In some specific embodiments, such as Figure 3 As shown, the connector 112 includes a post 1121. By providing the post 1121, the connection area between the cap 11 and the busbar 200 is increased, improving the mechanical stability of the system. Simultaneously, the larger contact surface effectively disperses the stress applied at the connection point, reducing the risk of the cap 11 loosening or falling off. Furthermore, it correspondingly increases the conductive contact area, reduces contact resistance, making current transmission more efficient and stable, and reducing energy loss and heat generation. This design enhances the safety and reliability of the electrical connection and improves the overall system performance and durability. Through optimized connection structure, the post 1121 ensures long-term stable operation of the equipment under various operating conditions.

[0067] Alternatively, in this application, the shape and location of the insertion post 1121 can be very flexible, and its shape includes, but is not limited to, cylindrical, flat, etc. The insertion post 1121 can be located on the largest surface of the cap 11; it can also be located on the adjacent surface of the largest surface to adapt to the docking requirements of different devices.

[0068] More specifically, in combination Figure 4 The connector 112 further includes a barb 1122 disposed on at least one side of the plug 1121. The barb 1122 is elastically deformable when inserted into the socket of the busbar 200. After full insertion, the barb 1122 returns to its original shape and firmly locks into the internal structure of the socket, preventing the plug 1121 from accidentally falling out and enhancing the stability and reliability of the connection. Therefore, by setting the barb 1122 structure, not only is a mechanical locking function added, but additional contact points are also formed to increase the conductive contact area, further reducing contact resistance and ensuring stable and efficient current transmission. When the contact structure 1 is used in scenarios with frequent vibration, the barb 1122 can prevent loosening and improve the reliability of the electrical connection.

[0069] In some technical solutions, a barb 1122 is provided on one side of the insert 1121. In other technical solutions, such as Figure 4 As shown, barbs 1122 are provided on both sides of the insert post 1121.

[0070] According to some optional embodiments of the present invention, combined with Figures 4-7 The cap body 11 is plate-shaped, and a first threaded connection part 111 is provided on one of the two largest surfaces of the cap body 11, and a plug-in part 112 is provided on the adjacent side of the largest surface.

[0071] In the above technical solution, a first threaded connection portion 111 is provided on a large surface of the cap body 11 for a secure threaded connection with the contact post 12. This arrangement ensures a tight connection between the cap body 11 and the contact post 12, providing sufficient conductive contact area to guarantee efficient current transmission.

[0072] Meanwhile, the connector 112 is located on the side adjacent to the largest surface where the first threaded connection 111 is located. This arrangement helps optimize space utilization and facilitates installation and maintenance. In particular, when it is necessary to quickly insert the cap 11 into the busbar 200 or other electrical components, the side-mounted connector 112 provides a more convenient operating angle and reduces installation difficulty.

[0073] Further, optionally, combined Figures 3-10 The cap body 11 is a square or round piece.

[0074] like Figures 3-6 As shown, when the cap body 11 is a square piece, at least two sides form surface contact with the busbar 200.

[0075] like Figures 7-10 As shown, when the cap body 11 is a circular piece, the outer peripheral surface of the cap body 11 is arc-shaped, and the outer peripheral surface of the arc-shaped piece forms a surface contact with the busbar 200.

[0076] According to a second aspect embodiment of the present invention, the electrical component 100 includes at least one of a relay and a fuse. For example, the electrical component 100 may include a relay. Alternatively, the electrical component 100 may include a fuse.

[0077] like Figure 2 As shown, the electrical component 100 includes: a housing 3, a moving contact 5, and a contact structure 1. The moving contact 5 is disposed inside the housing 3. According to the contact structure 1 of the first aspect of the present invention, the contact post 12 is disposed on the housing 3, one end of the contact having a stationary contact surface 124 is located inside the housing 3 and is disposed opposite to the moving contact 5, and the cap 11 is located outside the housing 3.

[0078] The contact post 12 contacts and separates from the moving contact 5 through its stationary contact surface 124 to complete the on / off control of the current.

[0079] The cap 11 is located outside the housing 3. This facilitates connection with the busbar 200.

[0080] The electrical component 100 of this application embodiment improves the reliability and stability of the electrical connection by utilizing the improved contact structure 1.

[0081] In some alternative embodiments, the electrical component 100 further includes a coil disposed within the housing 3. An insulating layer is provided at the coil. The insulating layer may be a resin layer. The insulating layer prevents electromagnetic noise generated by the coil during operation from propagating outwards, thereby reducing noise interference to the surrounding environment caused by the operation of the electrical component 100.

[0082] Please combine Figures 3-10According to a third aspect embodiment of the present invention, a battery power distribution unit 1000 includes an electrical component 100 and a busbar 200. The busbar 200 is provided with a mating portion 201 that mates with a connector 112.

[0083] The battery power distribution unit 1000 of this application embodiment improves the reliability and stability of the battery power distribution unit 1000 by adopting an improved electrical component 100 and ensuring a stable connection between the electrical component 100 and the busbar 200.

[0084] Specifically, the shape and size of the mating part 201 are adapted to the connector part 112. This shape and size matching ensures the stability and safety of the electrical connection, avoiding energy loss and safety hazards caused by poor contact. At the same time, it simplifies installation and improves installation efficiency.

[0085] For further details, please refer to Figure 4 , Figure 6 , Figure 8 and Figure 10 The mating part 201 is a socket 202 provided on one side of the busbar 200, and the insertion part 112 is inserted into the socket 202. At least one of the side surface of the cap 11 where the insertion part 112 is located or the end face of the insertion part 112 is in contact with the busbar 200 for conduction.

[0086] In the above technical solution, the mating part 201 is a socket 202 provided on one side of the busbar 200. The plug part 112 can be directly inserted into this socket 202 to achieve a quick connection and stable connection between the electrical component 100 and the busbar 200. This arrangement simplifies the installation process and ensures reliable and stable current transmission.

[0087] At least one of the side face or the end face of the connector 112 of the cap body 11 is in contact with the busbar 200, thereby increasing the conductive contact area, effectively reducing contact resistance and energy loss, and thus improving current transmission efficiency. For example, in some technical solutions, the side face of the connector 112 of the cap body 11 is in contact with the busbar 200; or, the end face of the connector 112 is in contact with the busbar 200; or, both the side face and the end face of the connector 112 of the cap body 11 are in contact with the busbar 200, which helps to enhance the reliable connection between the electrical component 100 and the busbar 200 to a greater extent, ensuring efficient and stable current transmission.

[0088] Further optionally, the socket 202 includes at least two hole segments arranged sequentially along the depth direction of the socket 202, and the width of the hole segments increases sequentially from the opening of the socket 202 to the bottom wall of the hole.

[0089] Specifically, the width of the segment near the opening of the socket 202 is the smallest, while the width of the segment near the bottom wall of the socket is the largest. The smaller opening segment helps guide the connector 112 to accurately enter the socket 202, providing initial positioning and ensuring alignment accuracy during insertion, reducing misoperation. As the insertion depth increases, the diameter of the segment gradually increases to accommodate the barbs 1122 on the connector 112. Here, the barbs 1122 can press the cap 11 against the busbar 200, ensuring sufficient contact area between them, thereby achieving stable and efficient current transmission.

[0090] The maximum diameter section of the hole near the bottom wall can accommodate the barb 1122 at the end of the connector 112, ensuring that the entire connector 112 can form a reliable locking force with the busbar 200 after being fully inserted. This not only enhances the stability and efficiency of the electrical connection, but also effectively prevents accidental loosening caused by external vibration or pulling.

[0091] Combination Figure 6 and Figure 9 Each segment of the insertion part 112 is provided with at least one barb 1122, and the length of the barb 1122 increases sequentially from the opening of the insertion hole 202 to the bottom wall of the hole.

[0092] The connector 112 has at least one barb 1122 for each hole segment, and the length of the barb 1122 gradually increases from the opening of the socket 202 to the bottom wall of the hole. This arrangement ensures that as the connector 112 is inserted deeper, each barb 1122 can abut against the corresponding hole segment in sequence, providing a clamping and positioning function. At the same time, each hole segment of the socket 202 can be provided with a stable locking force by the barb 1122, thereby improving the safety and stability of the connection. The increasing length of the barb 1122 forms a more robust locking mechanism, preventing accidental loosening and thus ensuring efficient and reliable current transmission.

[0093] The battery pack according to a fourth aspect of the present invention includes a battery power distribution unit 1000 according to a third aspect of the present invention.

[0094] The battery pack of this embodiment utilizes an improved battery power distribution unit 1000 to enhance the overall reliability of the battery pack. Simultaneously, the battery power distribution unit 1000 optimizes current transmission efficiency, reduces energy loss and heat generation, and extends the battery pack's lifespan.

[0095] The electrical device according to a fifth aspect of the present invention includes a battery pack according to a fourth aspect of the present invention.

[0096] The electrical device of this application embodiment achieves efficient, stable and safe power supply by integrating a battery pack according to the fourth aspect of the present invention.

[0097] The following is for reference. Figure 1 - Figure 10 The battery power distribution unit 1000 according to an embodiment of the present invention is described in detail below with reference to specific embodiments. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0098] Example 1

[0099] Reference Figures 3-6 The battery power distribution unit 1000 includes: electrical components 100 and busbar 200.

[0100] Reference Figure 2 The electrical component 100 includes: a housing 3, a moving contact 5, and a contact structure 1.

[0101] Reference Figure 1 and Figure 2 The contact structure 1 includes: a cap body 11, a contact post 12, and a support member 14.

[0102] The cap body 11 is a square piece and is located outside the housing 3. The cap body 11 is provided with a first threaded connection part 111 and a plug-in part 112. The first threaded connection part 111 is provided on one of the two largest surfaces of the cap body 11, and the plug-in part 112 is provided on the adjacent side of the largest surface.

[0103] The first threaded connection part 111 is a threaded hole, which is a blind hole.

[0104] Reference Figure 1 The contact post 12 includes a second threaded connection portion 122, a stationary contact surface 124, and a boss 126. The second threaded connection portion 122 and the stationary contact surface 124 are located at opposite ends of the contact post 12. The second threaded connection portion 122 is a stud and fits into the threaded hole of the cap body 11, with the end face of the stud contacting the bottom surface of the threaded hole. The stationary contact surface 124 is used to make contact with the moving contact 5 for conduction. The boss 126 is located on the outer periphery of the contact post 12 and is used to connect to the support member 14 of the contact head structure 1. The opposite two side surfaces of the boss 126 are a first platform 1261 and a second platform 1262, respectively. The first platform 1261 contacts the cap body 11; the second platform 1262 has a slot 12621 for buffering.

[0105] Reference Figures 3-6 The insertion part 112 includes: a post 1121 and barbs 1122. The barbs 1122 are provided on opposite sides of the post 1121.

[0106] The contact post 12 is provided on the housing 3, and the end of the contact structure 1 with the stationary contact surface 124 is located inside the housing 3 and is positioned opposite to the moving contact 5.

[0107] The busbar 200 is provided with a mating part 201 that mates with the connector 112.

[0108] The mating part 201 is a socket 202 located on one side of the busbar 200, and the insertion part 112 is inserted into the socket 202.

[0109] The cap body 11 has a side busbar 200 of the connector 112 that is in contact with the conductor.

[0110] The socket 202 includes a plurality of hole segments arranged sequentially along the depth direction of the socket 202, and the width of the hole segments increases sequentially from the opening of the socket 202 to the bottom wall of the hole. The length of the barb 1122 increases sequentially from the opening of the socket 202 to the bottom wall of the hole.

[0111] Example 2

[0112] This second embodiment is basically the same in structure as the first embodiment, the difference being that, referring to... Figures 7-10 In Embodiment 2, the cap 11 is a circular piece. The outer circular surface of the cap 11 forms surface contact with the busbar 200.

[0113] Other components of the battery power distribution unit 1000 according to the present invention, such as the battery pack and power-consuming device, as well as its operation, are known to those skilled in the art and will not be described in detail here.

[0114] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0115] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A contact structure, characterized in that, include: The cap body is provided with a first threaded connection part and a plug-in part, the plug-in part being used to connect to the busbar plug-in connection; The contact post has a second threaded connection portion and a stationary contact surface at its two opposite ends, respectively. The stationary contact surface is used to make contact with the moving contact of the electrical component to conduct electricity. In this configuration, one of the first threaded connection portion and the second threaded connection portion is a threaded hole, and the other is a stud that fits into the threaded hole.

2. The contact structure of claim 1, wherein The threaded hole is a blind hole, and the end face of the stud is in contact with the bottom surface of the threaded hole.

3. The contact structure according to claim 1, characterized in that, The outer periphery of the contact post is provided with a boss, which is used to connect the support member of the contact structure.

4. The contact structure of claim 3, wherein, The opposite two sides of the boss are the first platform and the second platform, respectively; The first platform is in contact with the cap body; The second platform has slots for cushioning.

5. The contact structure according to any one of claims 1-4, characterized in that, The connector includes: a plug.

6. The contact structure according to claim 5, characterized in that, The connector further includes a barb on at least one side of the plug.

7. The contact structure according to any one of claims 1-4, characterized in that, The cap body is sheet-shaped, and the first threaded connection portion is provided on one of the two largest surfaces of the cap body, and the insertion portion is provided on the adjacent side of the largest surface.

8. The contact structure of claim 7, wherein, The cap body is a square or round piece.

9. An electrical component, characterized by The electrical component includes at least one of a relay and a fuse; the electrical component includes: case; A movable contact, wherein the movable contact is disposed within the housing; According to any one of claims 1-8, the contact post is disposed on the housing, one end of the contact structure having the stationary contact surface is located inside the housing and is disposed opposite to the moving contact, and the cap is located outside the housing.

10. A battery power distribution unit, characterized by, include: The electrical component according to claim 9; A busbar, wherein the busbar is provided with a mating part that mates with the connector.

11. The battery power distribution unit according to claim 10, characterized in that, The mating part is a socket located on one side of the busbar, and the connector is inserted into the socket; Wherein, at least one of the side surface of the connector and the end face of the connector of the cap body is in contact with and connected to the busbar.

12. The battery power distribution unit according to claim 11, characterized in that, The socket includes at least two segments arranged sequentially along the depth direction of the socket, and the width of the segments increases sequentially from the opening of the socket to the bottom wall of the socket. The connector is provided with at least one barb for each of the holes, and the length of the barb increases sequentially from the opening of the hole to the bottom wall of the hole.

13. A battery pack, characterized in that, Includes the battery power distribution unit according to any one of claims 10-12.

14. An electrical appliance, characterized in that, Includes the battery pack according to claim 13.

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