Magnetic waterproof power supply wire harness
Through the innovative design of the magnetic waterproof power cable harness, the problem of insufficient waterproof performance of traditional magnetic power cable harnesses is solved by using magnetic adsorption and sealing structure, achieving high waterproof performance and stable connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU YILIAN ELECTRONIC TECH CO LTD
- Filing Date
- 2025-05-06
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional magnetic power cords are not waterproof enough, the contacts are easily corroded by liquids leading to short circuits, the connection stability is poor, and they are easily detached by external forces.
The design incorporates magnetic connection components and waterproof sealing components, including first and second magnetic connectors, an outer ring, a sealing ring, an elastic sheath, and a locking ring. Through magnetic adsorption and the cooperation of positioning posts and conductive springs, combined with a double sealing structure and annular rib design, the conductive sheet is stably adhered, improving waterproof performance.
It achieves IP67 waterproof rating, avoiding poor contact and safety hazards. The magnetic connection does not require precise alignment, and the connection is stable and safe.
Smart Images

Figure CN224367229U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power cable harness technology, and in particular to a magnetic waterproof power cable harness. Background Technology
[0002] Magnetic connectors, also known as magnetic connectors, magnetic force connectors, and magnetic connectors, are one of the most widely used connectors in electronic devices. The structure of a magnetic connector includes a connector plug (male end) and a connector socket (female end) that is coaxially connected to it.
[0003] Traditional magnetic power cords are not waterproof enough, the contacts are easily corroded by liquids leading to short circuits, the connection stability is poor, and they are easily detached by external forces. Utility Model Content
[0004] To address the aforementioned technical problems, a magnetic waterproof power cable harness is provided.
[0005] To achieve the above objectives, this utility model discloses a magnetic waterproof power cord harness, comprising a power cord body, a magnetic connection assembly, and a waterproof sealing assembly. Both ends of the power cord body are provided with magnetic connection assemblies, each including a first magnetic connector and a second magnetic connector. The first magnetic connector is fixed to one end of the power cord body, and an outer ring is fixed to it on its outer side. An annular groove is formed between the inner wall of the outer ring and the outer wall of the first magnetic connector, and a sealing ring is embedded in the annular groove. The second magnetic connector is fixed to the end of another power cord body, and an inner groove matching the outer ring is provided on the outer wall of the second magnetic connector. A sealing groove corresponding to the sealing ring is formed on the inner wall of the inner groove. Conductive sheets are embedded in the contact surfaces of both the first and second magnetic connectors. The first and second magnetic connectors are attracted to each other by magnetic force, and when they come into contact, the conductive sheets adhere to each other to form an electrical connection.
[0006] Furthermore, the waterproof sealing assembly includes an elastic sleeve and a locking ring. The elastic sleeve is fitted onto the outer wall of the power cord body and located outside the magnetic connection assembly. The elastic sleeve is tightly fitted to the outer walls of the first magnetic connector and the second magnetic connector, respectively. The locking ring and the elastic sleeve outside the second magnetic connector are an integral structure. The inner wall of the locking ring is threaded and threadedly connected to the outer wall of the elastic sleeve outside the first magnetic connector. The inner wall of the elastic sleeve is provided with several raised annular ribs, which are equidistantly arranged along the length of the elastic sleeve. The annular ribs are tightly fitted to the outer wall of the power cord body.
[0007] Furthermore, the first magnetic connector has a positioning post inside, and the positioning post is located at the center of the conductive sheet. The second magnetic connector has a positioning hole corresponding to the positioning post, and a conductive spring is embedded in the positioning hole. The two ends of the conductive spring abut against the inside of the first magnetic connector and the second magnetic connector, respectively.
[0008] Furthermore, the first magnetic connector and the second magnetic connector have opposite polarities, and the attraction force between them is 10N to 30N.
[0009] Furthermore, the sealing ring is made of silicone, and the cross-section of the sealing ring is circular. The diameter of the sealing ring is 3mm to 5mm, and the depth of the sealing groove is 1.2 times the diameter of the sealing ring.
[0010] Furthermore, the elastic sheath is made of TPU material, and the wall thickness of the elastic sheath is 1mm to 2mm, the height of the annular ribs is 0.5mm to 1mm, and the number of the annular ribs is four to eight.
[0011] Furthermore, the outer wall of the locking ring is provided with anti-slip texture, and the depth of the anti-slip texture is 0.3mm to 0.6mm, and the length of the locking ring is 10mm to 20mm.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model discloses a magnetic waterproof power harness. Through the magnetic attraction between the first magnetic connector and the second magnetic connector, as well as the cooperation of the positioning post and the conductive spring, it ensures that the conductive pieces always maintain a stable and close fit, avoiding the problem of poor contact caused by looseness in the traditional plug and socket connection method. It adopts a double sealing structure with an outer ring sleeve and an inner groove, combined with a multi-layer waterproof design of elastic sheath and annular ribs, which effectively improves the waterproof performance of the power harness and meets the IP67 protection level requirements. The magnetic connection method can be quickly connected without precise alignment, and the conductive pieces are not directly exposed during the connection process, avoiding the safety hazards of the traditional plug and socket connection method. Attached Figure Description
[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0014] Figure 1 This is a schematic diagram of the internal structure of this utility model.
[0015] Figure 2 This is a schematic diagram of the magnetic connector connection state of this utility model.
[0016] Figure 3 This is a schematic diagram of the end face of the first magnetic connector of this utility model.
[0017] In the diagram: 1 is the main body of the power cord; 2 is the magnetic connection assembly; 21 is the first magnetic connector; 211 is the outer ring; 212 is the sealing ring; 22 is the second magnetic connector; 221 is the inner groove; 3 is the waterproof sealing assembly; 31 is the elastic sheath; 311 is the annular rib; 32 is the locking ring; 321 is the anti-slip texture; 4 is the conductive sheet; 5 is the positioning post; 6 is the positioning hole; 7 is the conductive spring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] One embodiment of this utility model is as follows: Figure 1 and Figure 2 As shown, both ends of the power cord body 1 are provided with magnetic connection components 2, and the magnetic connection components 2 include a first magnetic connector 21 and a second magnetic connector 22. The first magnetic connector 21 is fixed to one end of the power cord body 1, and an outer ring 211 fixed to it is provided on the outside of the first magnetic connector 21. An annular groove is formed between the inner wall of the outer ring 211 and the outer wall of the first magnetic connector 21, and a sealing ring 212 is embedded in the annular groove. The second magnetic connector 22 is fixed to the end of another power cord body 1, and an inner groove 221 matching the outer ring 211 is provided on the outer wall of the second magnetic connector 221. A sealing groove corresponding to the sealing ring 212 is opened on the inner wall of the inner groove 221. Conductive sheets 4 are embedded in the contact surfaces of the first magnetic connector 21 and the second magnetic connector 22. Specifically, the conductive sheets are arranged in annular shapes on the surfaces of the first magnetic connector and the second magnetic connector. The structure features a conductive sheet connected to the core of the power cord via pins and an internal conductive sheet body. The first magnetic connector 21 and the second magnetic connector 22 are magnetically attracted to each other, and when they come into contact, the conductive sheets 4 adhere to each other to form an electrical connection. Through the magnetic attraction between the first and second magnetic connectors, as well as the cooperation of the positioning post and the conductive spring, the conductive sheets are kept in a stable and close fit, avoiding the problem of poor contact caused by looseness in traditional plug and socket connection methods. The double sealing structure of the outer ring and the inner groove, combined with the multiple waterproof design of the elastic sheath and the ring rib, effectively improves the waterproof performance of the power cord harness, meeting the IP67 protection level requirements. The magnetic connection method allows for quick connection without precise alignment, and the conductive sheets are not directly exposed during the connection process, avoiding the safety hazards of traditional plug and socket connection methods.
[0020] The waterproof sealing assembly 3 includes an elastic sleeve 31 and a locking ring 32. The elastic sleeve 31 is sleeved on the outer wall of the power cord body 1 and located outside the magnetic connection assembly 2. The elastic sleeve 31 is tightly fitted to the outer walls of the first magnetic connector 21 and the second magnetic connector 22. The locking ring 32 and the elastic sleeve 31 outside the second magnetic connector 22 are an integral structure. The inner wall of the locking ring 32 is threaded and threadedly connected to the outer wall of the elastic sleeve 31 outside the first magnetic connector 21. The inner wall of the elastic sleeve 31 is provided with a plurality of protruding annular ribs 311, and the annular ribs 311 are equidistantly arranged along the length direction of the elastic sleeve 31. The annular ribs 311 are tightly fitted to the outer wall of the power cord body 1.
[0021] The first magnetic connector 21 has a positioning post 5 inside, such as Figure 3 As shown, the positioning post 5 is located at the center of the conductive sheet 4. The second magnetic connector 22 has a positioning hole 6 corresponding to the positioning post 5. A conductive spring 7 is embedded in the positioning hole 6. The two ends of the conductive spring 7 abut against the inside of the first magnetic connector 21 and the second magnetic connector 22, respectively.
[0022] The first magnetic connector 21 and the second magnetic connector 22 have opposite polarities, and the attraction force between them is 10N to 30N.
[0023] The sealing ring 212 is made of silicone and has a circular cross-section. The diameter of the sealing ring 212 is 3mm to 5mm, and the depth of the sealing groove is 1.2 times the diameter of the sealing ring 212.
[0024] The elastic sheath 31 is made of TPU material and has a wall thickness of 1mm to 2mm. The height of the annular ribs 311 is 0.5mm to 1mm and the number of annular ribs 311 is four to eight. When the annular ribs are fitted onto the surface of the power cord body, they are subjected to elastic force and abut against the surface of the power cord body, thus achieving a sealing effect.
[0025] The outer wall of the locking ring 32 is provided with anti-slip texture 321. Specifically, the anti-slip texture adopts a knurled structure, the depth of the anti-slip texture 321 is 0.3mm to 0.6mm, and the length of the locking ring 32 is 10mm to 20mm.
[0026] The working principle of this embodiment is as follows: The first and second magnetic connectors at both ends of the power cord body are attracted to each other by magnetic force. The positioning post inside the magnetic connector is inserted into the positioning hole to play a guiding role. At the same time, the conductive spring is compressed in the spiral groove of the positioning post to generate a rebound force, so that the conductive pieces maintain a stable fit and ensure the reliability of the electrical connection. When the first and second magnetic connectors are mated, the outer ring is embedded in the inner groove, and the sealing ring is inserted into the sealing groove to form a double sealing structure to prevent water from seeping in. The elastic sheath is fitted on the outside of the magnetic connection assembly and fixed by the locking ring. The annular rib is tightly fitted to the outer wall of the power cord body to further enhance the waterproof performance. At the same time, the elastic sheath can buffer the external impact force and protect the magnetic connection assembly.
[0027] Several points need to be clarified: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, and can refer to mechanical or electrical connections, or internal connections between two components, or direct connections. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships, and the relative positional relationships may change when the absolute position of the described objects changes. Second, in this document, relational terms such as "first" and "second" are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between these entities.
[0028] The above examples are merely illustrative of this utility model and do not constitute a limitation on the scope of protection of this utility model. All designs that are the same as or similar to this utility model are within the scope of protection of this utility model.
Claims
1. A magnetic waterproof power cable harness, comprising a power cable body (1), a magnetic connection assembly (2), and a waterproof sealing assembly (3), characterized in that, The power cord body (1) is provided with magnetic connection components (2) at both ends. The magnetic connection components (2) include a first magnetic connector (21) and a second magnetic connector (22). The first magnetic connector (21) is fixed to one end of the power cord body (1), and an outer ring (211) is provided on the outside of the first magnetic connector (21) and fixed thereto. An annular groove is formed between the inner wall of the outer ring (211) and the outer wall of the first magnetic connector (21), and a sealing ring (212) is embedded in the annular groove. The second magnetic connector (22) is fixed. At the end of another power cord body (1), and the outer wall of the second magnetic connector (22) is provided with an embedded groove (221) that matches the outer ring sleeve (211). The inner wall of the embedded groove (221) is provided with a sealing groove corresponding to the sealing ring (212). The contact surfaces of the first magnetic connector (21) and the second magnetic connector (22) are both embedded with conductive sheets (4). The first magnetic connector (21) and the second magnetic connector (22) are attracted to each other by magnetic force, and when they are in contact, the conductive sheets (4) stick together to form an electrical connection.
2. A magnetic waterproof power cable harness according to claim 1, characterized in that, The waterproof sealing assembly (3) includes an elastic sleeve (31) and a locking ring (32). The elastic sleeve (31) is fitted onto the outer wall of the power cord body (1) and located outside the magnetic connection assembly (2). The elastic sleeve (31) is tightly fitted to the outer walls of the first magnetic connector (21) and the second magnetic connector (22). The locking ring (32) and the elastic sleeve (31) outside the second magnetic connector (22) are an integral structure. The inner wall of the locking ring (32) is threaded and threadedly connected to the outer wall of the elastic sleeve (31) outside the first magnetic connector (21). The inner wall of the elastic sleeve (31) is provided with several protruding annular ribs (311). The annular ribs (311) are equidistantly arranged along the length direction of the elastic sleeve (31). The annular ribs (311) are tightly fitted to the outer wall of the power cord body (1).
3. A magnetic waterproof power cable harness according to claim 1, characterized in that, The first magnetic connector (21) has a positioning post (5) inside, and the positioning post (5) is located at the center of the conductive sheet (4). The second magnetic connector (22) has a positioning hole (6) corresponding to the positioning post (5) inside, and a conductive spring (7) is embedded in the positioning hole (6). The two ends of the conductive spring (7) abut against the inside of the first magnetic connector (21) and the second magnetic connector (22) respectively.
4. A magnetic waterproof power cable harness according to claim 1, characterized in that, The first magnetic connector (21) and the second magnetic connector (22) have opposite polarities, and the adsorption force between them is 10N to 30N.
5. A magnetic waterproof power cable harness according to claim 1, characterized in that, The sealing ring (212) is made of silicone and has a circular cross-section. The diameter of the sealing ring (212) is 3mm to 5mm and the depth of the sealing groove is 1.2 times the diameter of the sealing ring (212).
6. A magnetic waterproof power cable harness according to claim 1, characterized in that, The elastic sheath (31) is made of TPU material, and the wall thickness of the elastic sheath (31) is 1mm to 2mm. The height of the annular ribs (311) is 0.5mm to 1mm, and the number of the annular ribs (311) is four to eight.
7. A magnetic waterproof power cable harness according to claim 1, characterized in that, The outer wall of the locking ring (32) is provided with anti-slip texture (321), and the depth of the anti-slip texture (321) is 0.3mm to 0.6mm. The length of the locking ring (32) is 10mm to 20mm.