Contact assembly, adapter and movable power take-off device

Abstract

The application relates to the technical field of electrical equipment, in particular to a contact assembly, an adapter and a movable power taking device. The contact assembly is used for electrically connecting a pole conductor in the adapter, and is also used for contacting and electrically connecting with a conductive sheet in a track. The contact assembly comprises a lever, a connecting piece, a contact and an insulating piece. The lever has a first end and a second end opposite to each other along an axial direction, and the first end is used for electrically connecting with the pole conductor; the connecting piece is fixedly welded with the second end; the contact is arranged on the connecting piece and is used for contacting and electrically connecting with the conductive sheet; the insulating piece at least covers a welded connection area of the second end and the connecting piece; the contact is electrically connected with the pole conductor through the connecting piece and the lever in sequence, and a continuous conductive path is formed. The connecting piece is fixedly welded with the second end, and compared with the traditional contact assembly in which the lever and the connecting piece are connected through a rivet, the contact assembly of the first aspect of the application has fewer parts and a relatively simple structure.

Description

Technical Field

[0001] This application relates to the field of electrical equipment technology, and more particularly to a contact assembly, adapter, and portable power supply device. Background Technology

[0002] A portable power outlet is a type of socket that can be added to, removed from, moved, and repositioned within a track range at any time, overcoming the drawback of traditional power outlets that cannot be moved. Existing portable power outlets typically include an adapter and a strip-shaped track. The track is mounted on the wall, and the adapter is inserted into a slot in the track. Contact components in the adapter connect with conductive plates in the track, energizing the adapter. When the contact components contact the conductive plates in the track, an appliance plugged into the adapter's socket receives power.

[0003] In related technologies, the contact components in adapters have a relatively complex structure. Utility Model Content

[0004] The purpose of this application is to provide a contact assembly, an adapter, and a portable power supply device, in order to solve the technical problem of the relatively complex structure of the contact assembly.

[0005] To achieve the above objectives, the technical solution adopted in the first aspect of this application is: a contact assembly applied to an adapter, the contact assembly being used to electrically connect to the polar conductive component in the adapter, the contact assembly being also used to contact and electrically connect with the conductive sheet in the track, the contact assembly including a lever, a connector, a contact, and an insulating component.

[0006] The lever has a first end and a second end opposite to each other along its axial direction. The first end is used for electrical connection with the polar conductive element. The connector is welded and fixed to the second end. The contact is provided on the connector for contacting the conductive sheet and achieving electrical connection. The insulating element at least covers the welded connection area between the second end and the connector. The contact is electrically connected to the polar conductive element through the connector and the lever in sequence.

[0007] The beneficial effects of the contact assembly provided in the first aspect of this application are as follows: In traditional contact assemblies, the lever and the connector are usually connected by rivets. This connection method not only requires an additional rivet, but also requires machining mounting holes on both the lever and the connector to match the rivet, resulting in a large number of parts and cumbersome processing steps. In the contact assembly of the first aspect of this application, the connector is welded to the second end of the lever, directly eliminating the need for a rivet, which significantly reduces the overall number of parts in the contact assembly and simplifies the structure of the assembly from the source.

[0008] In some embodiments, the second end has a mating plane, and a portion of the connector is mated and welded to the mating plane.

[0009] In some embodiments, the connector includes a first connecting piece and a second connecting piece arranged at an angle, the first connecting piece being attached to and welded to the mating plane, and the length direction of the first connecting piece being parallel to the axial direction of the lever, and the contact point being disposed on the second connecting piece.

[0010] In some embodiments, the insulating member is molded in one piece to cover the lever and the connecting member, and a positioning pin hole is formed on the insulating member, with the first connecting piece, the second connecting piece, or the mating surface corresponding to the positioning pin hole.

[0011] In some embodiments, the mating plane is a plane formed by milling or stamping.

[0012] In some embodiments, the mating plane is parallel to the axial direction of the lever.

[0013] In some embodiments, the connector is provided with a mounting portion, which is a recessed or through-hole structure, and the contact is inserted into the mounting portion.

[0014] In some embodiments, the contact protrudes from the end face surrounding the opening of the mounting portion.

[0015] To achieve the above objectives, the technical solution adopted in the second aspect of this application is: an adapter, including the contact component of the first aspect embodiment described above.

[0016] The advantage of the adapter provided in the second aspect of this application is that the structure of the adapter can be simplified by applying the contact component of the first aspect embodiment to the adapter.

[0017] To achieve the above objectives, the technical solution adopted in the third aspect of this application is: a portable power supply device, including a track and the adapter described in the second aspect above.

[0018] The beneficial effect of the portable power supply device provided in the third aspect of this application is that by applying the adapter of the second aspect embodiment described above to the portable power supply device, the structure of the portable power supply device can be simplified. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the contact component in one embodiment of this application; Figure 2 yes Figure 1 The diagram shows an exploded view of the contact assembly. Figure 3 yes Figure 1 A schematic diagram of the contact assembly from another perspective; Figure 4 yes Figure 3 The diagram shows an exploded view of the contact assembly. Figure 5 yes Figure 4 The diagram shows the structure of the contact assembly.

[0021] Figure label: 100. Lever; 110. First end; 120. Second end; 121. Contact plane; 200. Connector; 210. First connecting piece; 220. Second connecting piece; 221. Mounting part; 300, Contact; 400. Insulating component; 410. Positioning pinhole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be further described in detail below with reference to the accompanying drawings. The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0023] In the description of this application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inner", "outer", "upper", "lower", "left", "right", 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 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 this application.

[0024] To facilitate a clear description of the technical solutions of this application, the terms "first" and "second" are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first" and "second" do not limit the quantity or execution order, and that the terms "first" and "second" do not necessarily imply that they are different.

[0025] In this application, unless otherwise expressly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] In this application, "and / or" is merely a way of describing the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent three cases: 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.

[0027] It should be noted that, in this application, the terms "in one embodiment," "in one implementation," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in one embodiment," "in one implementation," "exemplarily," or "for example" should not be construed as being more preferred or advantageous than other embodiments or design solutions. Specifically, the use of terms such as "in one embodiment," "exemplarily," and "for example" is intended to present the relevant concepts in a specific manner.

[0028] A portable power outlet is a type of socket that can be added to, removed from, moved, and repositioned within a track range at any time, overcoming the drawback of traditional power outlets that cannot be moved. Existing portable power outlets typically include an adapter and a strip-shaped track. The track is mounted on the wall, and the adapter is inserted into a slot in the track. Contact components in the adapter connect with conductive plates in the track, energizing the adapter. When the contact components contact the conductive plates in the track, an appliance plugged into the adapter's socket receives power.

[0029] In related technologies, the contact components in adapters have a relatively complex structure.

[0030] To illustrate the technical solution of this application, the following description is provided in conjunction with specific accompanying drawings and embodiments.

[0031] This application provides a contact assembly for use in an adapter. The contact assembly is used to electrically connect polar conductive components in the adapter, and is also used to contact and electrically connect with conductive sheets in a track.

[0032] It should be noted that portable power supply devices generally include a track and an adapter that can move within the track.

[0033] The track includes a longitudinally extending first insulating shell, the top of which has a groove along its length. Symmetrically arranged on both sides of the groove are receiving slots for accommodating conductive sheets, specifically the L-pole and N-pole conductive sheets. Both the L-pole and N-pole conductive sheets are copper alloy elastic sheets, fixed within the receiving slots by snap-fit ​​structures and respectively connected to the live and neutral wires of an external power supply. A grounding conductive strip is located at the bottom of the groove, fixed to the bottom of the first insulating shell by screws and electrically connected to the ground wire. The opening of the groove has a constricted opening to prevent foreign objects from being inserted and to guide the adapter's sliding.

[0034] The adapter includes a second insulating housing and polar conductive components. The polar conductive components are housed within the second insulating housing and include a positive conductive component (also called the L-pole socket), a negative conductive component (also called the N-pole socket), and a ground conductive component (also called the grounding socket). The lower part of the second insulating housing has an insertion section that can be inserted into a groove in a track. Two sets of contact assemblies are symmetrically arranged on both sides of the insertion section; one set of contact assemblies is electrically connected to the positive conductive component, and the other set of contact assemblies is electrically connected to the negative conductive component.

[0035] When the adapter is inserted into the slot, and the ground electrode conductive element is electrically connected to the grounding conductive strip, the positive electrode conductive element is electrically connected to the L electrode conductive piece through the contact assembly, and the negative electrode conductive element is electrically connected to the N electrode conductive piece through the contact assembly, the adapter can draw power from the track.

[0036] Please refer to Figure 1 and Figure 2 The contact assembly of this application embodiment includes a lever 100, a connector 200, a contact 300, and an insulator 400. The lever 100 has a first end 110 and a second end 120 opposite to each other along its axial direction. The first end 110 is used for electrical connection with a conductive element. The connector 200 is welded and fixed to the second end 120. The contact 300 is disposed on the connector 200 and is used for contacting the conductive sheet and achieving electrical connection. The insulator 400 at least covers the welded connection area between the second end 120 and the connector 200. The contact 300 is electrically connected to the conductive element sequentially through the connector 200 and the lever 100, forming a continuous conductive path.

[0037] It should be noted that, under normal circumstances, the lever 100 is a long strip structure. That is, the lever 100 can be a cylindrical shaft, a cuboid shaft, or an irregularly shaped long shaft.

[0038] After the adapter is inserted into the slot, the contact 300 and at least part of the connector 200 are located within the slot, and the contact 300 contacts and is electrically connected to the conductive sheet. The contact 300 is electrically connected to the polar conductive element through the connector 200 and the lever 100 in sequence, forming a continuous conductive path, so that the transmission path of electrical energy from the external power source is: external power source → conductive sheet → contact 300 → connector 200 → lever 100 → polar conductive element → electrical equipment.

[0039] The insulating component 400 at least covers the welded connection area between the lever 100 and the connector 200, mechanically isolating the conductive path from the external environment. The shape of the insulating component 400 can also be adapted to the internal space of the second insulating housing to achieve limiting.

[0040] It is understandable that the connector 200 and the second end 120 can be welded and fixed by welding methods such as resistance welding, laser welding, and ultrasonic welding.

[0041] In traditional contact assemblies, the lever 100 and the connector 200 are connected by rivets. This connection method not only requires an additional rivet but also necessitates machining matching mounting holes on both the lever 100 and the connector 200, resulting in a large number of parts and cumbersome manufacturing processes. However, in the contact assembly of the proposed embodiment, the connector 200 is welded to the second end 120 of the lever 100, directly eliminating the need for rivets. This significantly reduces the overall number of parts in the contact assembly, simplifying its structure from the outset.

[0042] From an assembly process perspective, the traditional assembly process of connecting the lever 100 and the connector 200 contact assembly with rivets requires multiple steps, including drilling, rivet installation, and riveting. Each step requires precise operation to ensure the stability of the connection, resulting in low assembly efficiency. Welding, on the other hand, can achieve rapid connection through automated welding equipment. This not only reduces assembly steps but also effectively ensures the strength of the connection and reduces the risk of connection failure due to improper operation during assembly.

[0043] Furthermore, reducing the number of parts brings a series of cascading advantages. On the one hand, fewer parts mean simpler supply chain management and lower costs in procurement, inventory management, and other areas. On the other hand, during subsequent maintenance and repair, the simpler structure of the contact components allows users to quickly locate problems, making repair operations more convenient, significantly shortening repair time and reducing maintenance costs. Simultaneously, the simplified structure reduces the risk of malfunctions caused by improper fit between parts during use, improving the overall reliability and lifespan of the contact components and ensuring long-term stable electrical connection in the adapter.

[0044] Please refer to Figures 3 to 5In some embodiments, the second end 120 has a mating plane 121, and a portion of the connector 200 is mated and welded to the mating plane 121.

[0045] In the above embodiment, the second end 120 is provided with a mating plane 121, and a portion of the connector 200 is mated and welded to the mating plane 121. This significantly increases the contact area between the connector 200 and the lever 100. During the welding process, the larger contact area allows for more stable heat transfer, resulting in a fuller and stronger weld joint, which significantly improves the mechanical strength and electrical conductivity of the connection between the connector 200 and the lever 100. Compared to the point or line contact welding method between the connector 200 and the lever 100 without the mating plane 121, this surface contact welding method effectively avoids stress concentration at the welding point due to insufficient contact area, preventing potential problems such as weld cracking and detachment due to vibration, thermal cycling, etc., during long-term use.

[0046] Secondly, the presence of the mating plane 121 provides a precise positioning reference for the installation of the connector 200. During assembly, the connector 200 can be directly mated to the mating plane 121 without the need for complex positioning adjustments using additional tooling fixtures. This ensures the relative positional accuracy between the connector 200 and the lever 100, effectively preventing inaccurate positioning of the contact point 300 due to misalignment of the connector 200, which would affect the contact effect between the contact point 300 and the conductive sheet inside the track. This precise positioning also ensures the consistency of each contact component, significantly reducing the product defect rate caused by assembly errors during mass production, and improving production efficiency and product quality stability.

[0047] Furthermore, the mating plane 121 ensures a tighter connection between the connector 200 and the lever 100, reducing the gap between them. In terms of electrical performance, this tight connection reduces contact resistance, minimizes energy loss during current flow, and prevents excessive localized heating due to high contact resistance, thus protecting the contact assembly's lifespan and operational stability. Simultaneously, reducing the gap effectively prevents dust, moisture, and other impurities from entering the connection between the connector 200 and the lever 100, avoiding corrosion and further enhancing the contact assembly's resistance to harsh environments, ensuring stable and reliable operation in various application scenarios.

[0048] Please refer to Figure 4 and Figure 5In some embodiments, the connector 200 includes a first connecting piece 210 and a second connecting piece 220 arranged at an angle. The first connecting piece 210 is attached to and welded to the mating plane 121, and the length direction of the first connecting piece 210 is parallel to the axial direction of the lever 100. The contact point 300 is provided on the second connecting piece 220.

[0049] In the above embodiment, the connector 200 adopts a structure with a first connecting piece 210 and a second connecting piece 220 arranged at an angle, which has the advantages of strong structural adaptability and clear functional division. The first connecting piece 210 is specifically used to attach and weld with the mating plane 121 on the second end 120 of the lever 100, which can focus on achieving a stable connection with the lever 100, ensuring the firmness of the connection and the reliability of electrical conduction, without being interfered with by other functional requirements. The second connecting piece 220 is specifically used to set the contact 300. It can flexibly adjust its shape, size and position according to the contact 300's contact with the conductive sheet in the track, making the installation position and contact angle of the contact 300 more reasonable and easier to achieve good contact with the conductive sheet.

[0050] It should be noted that in conventional technology, the connector 200 is a single, straight connecting piece, perpendicular to the axis of the lever 100. To ensure that the connecting piece and its contacts do not interfere with other components such as conductive parts, the lever 100 needs to be extended from the second end 120 away from the connecting piece by a "avoidance section," resulting in a relatively long lever 100. Since the lever 100 is often made of high-purity metal, a longer lever 100 increases the overall cost of the contact assembly. In the above embodiment, the first connecting piece 210 serves as a dedicated "connecting arm" and is welded to the mating plane 121 on the lever 100. The length direction of the first connecting piece 210 is parallel to the axial direction of the lever 100. The first connecting piece 210 directly undertakes the function of connecting the lever 100 and the second connecting piece 220. The first connecting piece 210 has a certain length, which can prevent the second connecting piece 220 and the contacts 300 on the second connecting piece 220 from interfering with components such as polar conductive parts. There is no need for the lever 100 to extend an additional "avoidance section", thereby reducing the length of the lever 100 and reducing the amount of high-cost lever 100 material used, so as to reduce the overall cost of the contact assembly.

[0051] In the above embodiments, the angled arrangement of the first connecting piece 210 and the second connecting piece 220 provides greater flexibility in the installation layout of the contact assembly inside the adapter. Since the internal space of an adapter is typically compact, and the installation positions of various components are mutually constrained, the angle between the first connecting piece 210 and the second connecting piece 220 can be adjusted according to the internal spatial structure of the adapter. This allows the contact assembly to make more efficient use of space, avoids interference with other components, and ensures that the contact 300 can accurately contact the conductive sheet within the track, thereby improving the overall space utilization and structural rationality of the adapter.

[0052] Optionally, the included angle between the first connecting piece 210 and the second connecting piece 220 can be 90°, 100°, 110°, 120°, etc.

[0053] Please refer to Figures 3 to 5 In some embodiments, the insulating member 400 is molded in one piece to cover the lever 100 and the connector 200, and a positioning pin hole 410 is formed on the insulating member 400, which is provided corresponding to the first connecting piece 210, the second connecting piece 220 or the mating plane 121.

[0054] In the above embodiment, the insulating component 400 is molded in one piece to cover the lever 100 and the connector 200. This achieves comprehensive and gapless coverage of the connection area between the lever 100 and the connector 200. Compared to the traditional method of splicing multiple insulating parts or manually wrapping insulating material, one-time molding can precisely form an insulating layer that fits perfectly with the lever 100 and the connector 200 according to their shape and structure. This effectively avoids the problem of reduced insulation performance caused by splicing gaps or incomplete wrapping, significantly improving the insulation reliability of the insulating component 400. It can effectively prevent safety hazards such as leakage and short circuit during use, ensuring the electrical safety of the contact components and the entire adapter.

[0055] One-time molding also offers advantages such as high production efficiency and good product consistency. In mass production, the welding assembly of the lever 100 and connector 200 is simply placed into the mold, and the insulation component 400 is encapsulated in a single injection molding process. No subsequent splicing or assembly steps are required, simplifying the production process and significantly increasing production speed to meet the demands of large-scale production. Simultaneously, the high precision of the mold ensures that the size, shape, and encapsulation position of each insulation component 400 are highly consistent, avoiding individual differences caused by manual operation, improving product quality stability, and ensuring that the insulation performance of each contact component meets design standards.

[0056] Understandably, during the production process of the contact assembly, the welding assembly of the lever 100 and the connector 200 is placed in the mold, and the positioning pins clamp at least one of the first connecting piece 210, the second connecting piece 220, or the connection between the second connecting piece 220 and the mating plane 121, so that after molding, a pair of positioning pin holes 410 penetrating the wall thickness of the insulating component 400 are formed at the corresponding clamping positions. The central axis of the positioning pin holes 410 is perpendicular to the axis of the lever 100 and is symmetrically distributed in pairs.

[0057] The contact component in this embodiment has multiple large-area flat surfaces, providing a stable and reliable clamping base for the positioning pin. This clamping method can firmly fix the welding assembly of the lever 100 and the connector 200 in a preset position within the mold, avoiding displacement of the welding assembly of the lever 100 and the connector 200 due to factors such as injection pressure impact and molten material flow thrust during the molding process. This ensures that the insulating component 400 can accurately cover the target area without problems such as coverage position deviation, partial omission, or over-coverage, further improving the fit between the insulating component 400 and the welding assembly body of the lever 100 and the connector 200, and ensuring insulation performance and structural integrity.

[0058] Please refer to Figure 3 The insulating component 400 covers a portion of the lever 100, leaving the portion of the lever 100 exposed to facilitate electrical connection between the lever 100 and the conductive component. The insulating component 400 covers the first connecting piece 210 and a portion of the second connecting piece 220, leaving the portion of the second connecting piece 220 exposed to facilitate the placement of contacts 300 on the second connecting piece 220.

[0059] In some embodiments, the mating plane 121 is a plane formed by milling or stamping.

[0060] The mating surface 121 is formed by milling or stamping, ensuring high flatness and surface finish. Milling uses a high-speed rotating tool to cut the second end 120 of the lever 100, allowing precise control of the surface dimensions and accuracy, resulting in a flat, smooth surface with minimal error. Stamping uses a die to press the lever 100 into shape, similarly ensuring flatness and consistency, and is suitable for mass production with high processing efficiency.

[0061] The highly flat mating surface 121 ensures good surface contact between the connector 200 and the lever 100, avoiding local gaps or poor contact caused by insufficient flatness. During welding, good surface contact allows for uniform heat transfer, resulting in higher weld quality and a stronger connection. In terms of electrical conductivity, tight surface contact reduces contact resistance, decreases current loss, and improves electrical performance.

[0062] Meanwhile, milling and stamping are both mature machining processes, characterized by relatively low processing costs, high processing efficiency, and strong process stability. Both the precise controllability of milling and the efficient mass production capabilities of stamping can meet the needs of different production scales and precision requirements. Using these two processing methods to form the mating surface 121 not only ensures product quality but also effectively controls production costs, enhancing the product's market competitiveness. Furthermore, the mating surface 121, after milling or stamping, has a more stable surface structure, is less prone to deformation or wear during subsequent use, and can maintain good planar performance over a long period, ensuring the connection stability and electrical conductivity reliability between the connector 200 and the lever 100.

[0063] Please refer to Figure 4 and Figure 5 In some embodiments, the contact plane 121 is parallel to the axial direction of the lever 100.

[0064] In the above embodiment, the mating plane 121 is arranged parallel to the axial direction of the lever 100, making the overall structure of the lever 100 more regular and conforming to the principles of mechanical design. This effectively improves the structural stability and bending resistance of the lever 100. When the lever 100 is subjected to external forces (such as insertion and extraction forces during assembly, vibration and impact forces during use, etc.), the mating plane 121 parallel to the axial direction can distribute the external forces more evenly on the lever 100, avoiding damage such as bending and breakage of the lever 100 due to stress concentration, and extending the service life of the lever 100.

[0065] From an assembly perspective, the mating plane 121 is parallel to the axis of the lever 100, ensuring that the connector 200, when welded to the lever 100, maintains the same installation direction as the lever 100's axis. This aligns better with conventional assembly practices, facilitating positioning and welding operations, reducing assembly difficulty, and improving efficiency. Furthermore, this structural design allows for a more rational layout of the contact components within the adapter, enabling better integration with other axially arranged components, reducing wasted space, and maximizing the utilization of the adapter's internal space.

[0066] In terms of electrical performance, the mating plane 121 is parallel to the axis of the lever 100, which makes the current conduction path between the lever 100 and the connector 200 smoother, reduces the path bends in the current conduction process, reduces electrical losses caused by the complex path, ensures that the current can be transmitted efficiently and stably, improves the overall electrical performance of the contact assembly, and ensures that it can reliably realize the electrical connection function between the polar conductive component and the conductive sheet in the track.

[0067] Please refer to Figure 4In some embodiments, the connector 200 is provided with a mounting portion 221, which is a recess or through hole structure, and the contact 300 is fixed in the mounting portion 221.

[0068] In the above embodiment, the contact 300 is stamped and fixed within the mounting portion 221 to enhance the stability of the connection between the contact 300 and the connector 200. Furthermore, the operation is simple and quick, requiring no complex tools or tedious welding operations, significantly improving the installation efficiency of the contact 300. In mass production, the plug-in installation can achieve automated operation, further increasing production speed and reducing labor costs.

[0069] In the above embodiment, the mounting portion 221 on the connector 200 is formed by stamping. Firstly, it has significant advantages in terms of processing technology. Stamping is characterized by high processing speed, high production efficiency, and low cost, enabling mass production of the mounting portion 221. Furthermore, the recessed or through-hole structure formed by stamping has high dimensional accuracy and good consistency, ensuring that each mounting portion 221 can precisely match the contact 300, avoiding problems such as difficulty in installing the contact 300 or insecure installation due to dimensional deviations in the mounting portion 221.

[0070] Furthermore, the recessed or through-hole structure formed by stamping provides excellent positioning and fixation for the contact 300. The recessed and through-hole structures, through interference fit, ensure the contact 300 remains stable in both the axial and radial directions, preventing poor contact with the conductive sheet due to loosening of the contact 300 and ensuring reliable electrical connection. This reliable installation method ensures that the contact 300 remains in the correct position throughout long-term use, stably achieving contact and electrical connection with the conductive sheet.

[0071] In some embodiments, the contact 300 protrudes from the end face surrounding the opening of the mounting portion 221.

[0072] In the above embodiment, the contact 300 protrudes from the end face around the opening of the mounting portion 221, ensuring that when the contact 300 contacts the conductive sheet in the track, it first contacts the conductive sheet, avoiding contact between the end face of the mounting portion 221 and the conductive sheet, which would affect the electrical connection. In actual use, the conductive sheet in the track may have some surface unevenness or positional deviation. The protruding design of the contact 300 can effectively compensate for these deviations. Even if the conductive sheet has slight positional displacement or surface undulations, the protruding contact 300 can still achieve reliable contact, ensuring the stability of the electrical connection.

[0073] Meanwhile, the protruding contact 300 increases the contact pressure between itself and the conductive sheet. When the contact assembly mates with the rail, the protruding contact 300 is compressed first, maintaining appropriate contact pressure between the contact 300 and the conductive sheet. Sufficient contact pressure reduces contact resistance, decreases energy loss during current flow, and prevents poor contact due to insufficient contact pressure, which can lead to localized overheating, arcing, and other phenomena. This improves the reliability and safety of the electrical connection and extends the service life of the contact 300 and the conductive sheet.

[0074] To achieve the above objectives, the technical solution adopted in the second aspect of this application is: an adapter, including the contact component of the first aspect embodiment described above.

[0075] The structure of the adapter can be simplified by applying the contact components of the first aspect embodiment to the adapter.

[0076] To achieve the above objectives, the technical solution adopted in the third aspect of this application is: a portable power supply device, including a track and the adapter described in the second aspect above.

[0077] By applying the adapter of the second aspect embodiment described above to the portable power supply device, the structure of the portable power supply device can be simplified.

[0078] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. A contact assembly, characterized in that, Applied to an adapter, the contact assembly is used for electrically connecting polar conductive elements in the adapter, and the contact assembly is also used for contacting and electrically connecting with conductive plates within a track. The contact assembly includes: A lever has a first end and a second end opposite to each other along its axial direction, the first end being used for electrical connection with the polar conductive element; The connector is welded and fixed to the second end; Contacts are provided on the connector for contacting the conductive sheet and achieving electrical connection; An insulating component, at least covering the welding connection area between the second end and the connector; The contact point is electrically connected to the polar conductive element via the connector, the lever, and so on.

2. The contact assembly according to claim 1, characterized in that, The second end has a mating plane, and part of the connector is mated and welded to the mating plane.

3. The contact assembly according to claim 2, characterized in that, The connector includes a first connecting piece and a second connecting piece arranged at an angle. The first connecting piece is attached to and welded to the mating plane, and the length direction of the first connecting piece is parallel to the axial direction of the lever. The contact point is located on the second connecting piece.

4. The contact assembly according to claim 3, characterized in that, The insulating component is molded in one piece to cover the lever and the connecting component, and a positioning pin hole is formed on the insulating component. The first connecting piece, the second connecting piece, or the mating surface is set corresponding to the positioning pin hole.

5. The contact assembly according to any one of claims 2 to 4, characterized in that, The bonding surface is a plane formed by milling or stamping.

6. The contact assembly according to any one of claims 2 to 4, characterized in that, The contact plane is parallel to the axial direction of the lever.

7. The contact assembly according to any one of claims 1 to 4, characterized in that, The connector is provided with a mounting part, which is a recessed or through-hole structure, and the contact is inserted into the mounting part.

8. The contact assembly according to claim 7, characterized in that, The contact point protrudes from the end face surrounding the opening of the mounting portion.

9. An adapter, characterized in that, Includes the contact assembly as described in any one of claims 1 to 8.

10. A portable power-generating device, characterized in that, Includes the track and the adapter as described in claim 9.

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