Protection structure for new energy charging cable
By designing a protective structure for new energy charging cables with clamping, limiting, and telescopic components, the problem of inconvenient replacement of protective sleeves has been solved, achieving the effects of rapid replacement and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-14
AI Technical Summary
The existing protective structure for new energy charging cables does not facilitate quick replacement of the protective sleeve, increasing maintenance costs.
A protective structure including a clamping component, a limiting component, and a telescopic component was designed. The clamping component facilitates the installation of the protective sleeve, the limiting component facilitates the replacement of worn protective sleeves, and the telescopic component prevents the cable from breaking due to excessive tension.
This enables quick replacement of protective sleeves, reduces safety hazards and maintenance time, and improves cable safety.
Smart Images

Figure CN224123173U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable technology, specifically a protective structure for new energy charging cables. Background Technology
[0002] New energy charging cables are cables specifically designed for charging new energy vehicles. They are used to connect charging piles to electric vehicles to transmit electrical energy. In the application of new energy charging cables, the protective structure is an important component to ensure safety and cable durability during the charging process. To cope with challenges such as high voltage, high current, and harsh environments, the cable protection structure typically needs to have multiple functions, including protection, fire resistance, abrasion resistance, and aging resistance.
[0003] Utility model patent CN217157763U discloses a new energy vehicle charging pile cable with cable protection function. The cable includes a protective layer on its exterior. Clamping components are located between the cable and the protective layer, near both ends. Each clamping component includes symmetrically distributed clamping blocks, which are fixedly connected to the protective layer by a first spring. The protective layer comprises an elastic layer, glass fiber, polyester fiber, a high-temperature resistant layer, a wear-resistant layer, and a mohair fiber layer. A polytetrafluoroethylene (PTFE) film is provided on the outer wall of the mohair fiber layer. This utility model provides a protective layer on the outside of the cable to protect it. The protective layer also possesses elasticity and wear resistance, increasing its service life. The mohair fiber layer enhances the strength and elasticity of the protective layer while being easy to wash. Combined with the PTFE film, it facilitates the cleaning of surface stains on the protective layer.
[0004] However, the existing protective structure for new energy charging cables is not convenient for quick replacement of the protective sleeve, which increases maintenance costs. Utility Model Content
[0005] This utility model provides a protective structure for new energy charging cables to solve the problem that existing protective structures for new energy charging cables are not convenient for quick replacement of protective sleeves, thus increasing maintenance costs.
[0006] This utility model provides the following technical solution: a protective structure for new energy charging cables, including a cable body and a protective sleeve slidably connected to the surface of the cable body, with connecting pieces sleeved at both ends of the protective sleeve, and further including: a clamping assembly disposed on the surface of the connecting pieces, the clamping assembly including an upper clamping ring and a lower clamping ring, with a fixing block fixedly connected to one side of each of the upper and lower clamping rings; a limiting assembly disposed inside the fixing block, the limiting assembly including a rotating rod, a threaded bolt, and a limiting nut, with a fixing sleeve sleeved at one end of the cable body; and a sliding sleeve disposed on the surface of the fixing sleeve, with a telescopic assembly slidably connected to the surface of the sliding sleeve, the telescopic assembly including a connecting sleeve and a telescopic spring.
[0007] As a preferred embodiment of the present invention, the clamping assembly includes an upper clamping ring sleeved on the surface of the connecting piece, and a lower clamping ring rotatably connected to one side of the upper clamping ring.
[0008] As a preferred embodiment of this utility model, the limiting component includes a rotating rod rotatably connected inside the fixed block, a threaded bolt sleeved on the surface of the rotating rod, and a limiting nut threadedly connected to the bottom of the threaded bolt.
[0009] As a preferred embodiment of the present invention, the telescopic component includes a connecting sleeve that is slidably connected to the surface of the fixed sleeve, and a telescopic spring is fixedly connected to the inner wall of one end of the connecting sleeve.
[0010] As a preferred embodiment of this utility model, one end of the cable body is connected to a charging connector, and a switch is provided on the surface of the charging connector.
[0011] As a preferred embodiment of this utility model, a rotating disk is fixedly connected to one end of the fixed sleeve, and a sealing ring is fitted onto the other end of the fixed sleeve.
[0012] As a preferred embodiment of this utility model, two sets of positioning blocks are fixedly connected to the surface of the sliding sleeve, and the interior of the connecting sleeve is provided with a sliding groove that matches the positioning blocks.
[0013] As a preferred technical solution of this utility model, one end of the connecting sleeve is fixedly connected to a retaining sleeve, and one side of the fixing block is provided with a retaining groove that is compatible with the threaded bolt.
[0014] Compared with the prior art, this utility model provides a protective structure for new energy charging cables, which has the following beneficial effects:
[0015] 1. This protective structure for new energy charging cables, through the setting of clamping components, limiting components, and protective sleeves, can protect the surface of the cable body during use. Simultaneously, when the surface of the protective sleeve wears down after prolonged use, rotating the limiting nut causes it to rotate on the surface of the threaded bolt and disengage from the surface of the fixing block. This pulls the threaded bolt out of the slot of the fixing block, causing the upper and lower clamping rings to disengage from the connecting piece, thus allowing the charging connector to be pulled out. This facilitates the replacement of the protective sleeve, enabling rapid replacement when the protective sleeve is damaged or aged, further reducing safety hazards and maintenance time.
[0016] 2. This protective structure for new energy charging cables, through the setting of telescopic components, fixed sleeves, and sliding sleeves, allows the cable to be stretched to a certain length when pulled by personnel for charging. This stretches the cable body, causing the fixed sleeve to move. The fixed sleeve then connects with the sliding sleeve via a thread, allowing the fixed sleeve to slide inside the connecting sleeve. Consequently, the positioning block slides inside the groove and compresses the telescopic spring. This causes the telescopic spring to deform under force, generating elastic force, which in turn pulls the sliding sleeve in the opposite direction. This effectively prevents the cable from breaking at the connection point with the charging pile due to excessive tension, thus improving the safety of the protective structure for new energy charging cables. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the telescopic component, fixed sleeve, and sliding sleeve of this utility model;
[0020] Figure 4 This is a schematic diagram of the clamping component and limiting component of this utility model.
[0021] In the diagram: 1. Cable body; 2. Protective sleeve; 3. Connecting piece; 4. Clamping assembly; 401. Upper clamping ring; 402. Lower clamping ring; 5. Fixing block; 6. Limiting assembly; 601. Rotating rod; 602. Threaded bolt; 603. Limiting nut; 7. Fixing sleeve; 8. Sliding sleeve; 9. Telescopic assembly; 901. Connecting sleeve; 902. Telescopic spring; 10. Charging connector; 11. Rotating disk; 12. Sealing ring; 13. Positioning block; 14. Clamping sleeve. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-4 This utility model discloses a protective structure for new energy charging cables, including a cable body 1 and a protective sleeve 2 slidably connected to the surface of the cable body 1. Both ends of the protective sleeve 2 are fitted with connecting pieces 3. It also includes: a clamping assembly 4 disposed on the surface of the connecting pieces 3, the clamping assembly 4 including an upper clamping ring 401 and a lower clamping ring 402, and a fixing block 5 fixedly connected to one side of the upper clamping ring 401 and the lower clamping ring 402; a limiting assembly 6 disposed inside the fixing block 5, the limiting assembly 6 including a rotating rod 601, a threaded bolt 602 and a limiting nut 603, and a fixing sleeve 7 fitted to one end of the cable body 1; a sliding sleeve 8 disposed on the surface of the fixing sleeve 7, and a telescopic assembly 9 slidably connected to the surface of the sliding sleeve 8, the telescopic assembly 9 including a connecting sleeve 901 and a telescopic spring 902.
[0024] Specifically, the clamping assembly 4 includes an upper clamping ring 401 sleeved on the surface of the connecting piece 3, and a lower clamping ring 402 rotatably connected to one side of the upper clamping ring 401.
[0025] In this embodiment, the upper clamping ring 401 and the lower clamping ring 402 work together to facilitate the installation and fixation of the protective sleeve 2.
[0026] Specifically, the limiting component 6 includes a rotating rod 601 rotatably connected inside the fixed block 5, a threaded bolt 602 sleeved on the surface of the rotating rod 601, and a limiting nut 603 threadedly connected to the bottom of the threaded bolt 602.
[0027] In this embodiment, when in use, the protective sleeve 2 can protect the surface of the cable body 1. At the same time, when the surface of the protective sleeve 2 wears down after long-term use, the limiting nut 603 is rotated, so that the limiting nut 603 rotates on the surface of the threaded bolt 602 and disengages from the surface of the fixing block 5, thereby pulling the threaded bolt 602 and pulling the threaded bolt 602 out of the slot of the fixing block 5.
[0028] Specifically, the telescopic component 9 includes a connecting sleeve 901 that is slidably connected to the surface of the fixed sleeve 7, and a telescopic spring 902 is fixedly connected to the inner wall of one end of the connecting sleeve 901.
[0029] In this embodiment, when a person pulls the cable for charging, it is stretched to a certain length, causing the cable body 1 to move the fixed sleeve 7. Then, the fixed sleeve 7 is threadedly connected to the sliding sleeve 8, causing the fixed sleeve 7 to drive the sliding sleeve 8 to slide inside the connecting sleeve 901. Then, the positioning block 13 slides inside the groove and squeezes the telescopic spring 902, causing the telescopic spring 902 to deform under force and generate elastic force, which in turn pulls the sliding sleeve 8 in the opposite direction.
[0030] Specifically, one end of the cable body 1 is connected to a charging connector 10, and a switch is provided on the surface of the charging connector 10.
[0031] In this embodiment, the charging connector 10 facilitates the connection between the cable and the new energy vehicle for charging, and the switch facilitates the adjustment of the power supply.
[0032] Specifically, a rotating disk 11 is fixedly connected to one end of the fixed sleeve 7, and a sealing ring 12 is fitted onto the other end of the fixed sleeve 7.
[0033] In this embodiment, the rotating disk 11 facilitates the rotation of the fixed sleeve 7 by personnel, making it convenient to install the fixed sleeve 7 inside the sliding sleeve 8, and the sealing ring 12 increases the sealing performance of the connection.
[0034] Specifically, two sets of positioning blocks 13 are fixedly connected to the surface of the sliding sleeve 8, and the interior of the connecting sleeve 901 is provided with a sliding groove that matches the positioning blocks 13.
[0035] In this embodiment, the positioning block 13 can compress the telescopic spring 902 and slide in the groove inside the connecting sleeve 901, maintaining the same direction for easy installation.
[0036] Specifically, one end of the connecting sleeve 901 is fixedly connected to a retaining sleeve 14, and one side of the fixing block 5 is provided with a groove that matches the threaded bolt 602.
[0037] In this embodiment, the sleeve 14 is easy to fix on the surface of the charging pile for protection and support, and the slot of the fixing block 5 is easy for the threaded bolt 602 to be inserted and fixed.
[0038] The working principle and usage process of this utility model are as follows: When in use, the protective sleeve 2 can protect the surface of the cable body 1. At the same time, when the surface of the protective sleeve 2 wears down after long-term use, the limiting nut 603 is rotated, so that the limiting nut 603 rotates on the surface of the threaded bolt 602 and disengages from the surface of the fixing block 5. Then, the threaded bolt 602 is pulled out from the slot of the fixing block 5, and the upper clamping ring 401 and the lower clamping ring 402 are pulled out from the connecting piece 3, and then the charging connector 10 is pulled out.
[0039] When a person pulls the cable to charge it, it stretches to a certain length, causing the cable body 1 to move the fixed sleeve 7. The fixed sleeve 7 then connects with the sliding sleeve 8 by threads, causing the fixed sleeve 7 to drive the sliding sleeve 8 to slide inside the connecting sleeve 901. The positioning block 13 then slides inside the groove and compresses the telescopic spring 902, causing the telescopic spring 902 to deform under force and generate elastic force, which in turn pulls the sliding sleeve 8 in the opposite direction.
[0040] In summary, the protective structure for new energy charging cables, through the clamping component 4, the limiting component 6, and the protective sleeve 2, facilitates the replacement of the protective sleeve 2, allowing for rapid replacement when the protective sleeve 2 is damaged or aged, further reducing safety hazards and maintenance time. Furthermore, the telescopic component 9, the fixed sleeve 7, and the sliding sleeve 8 prevent excessive tension from causing breakage at the connection between the cable and the charging pile, thus improving the safety of the protective structure for new energy charging cables.
[0041] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.
Claims
1. A protective structure for a new energy charging cable, comprising a cable body (1) and a protective sleeve (2) slidably connected to the surface of the cable body (1), wherein connecting pieces (3) are sleeved at both ends of the protective sleeve (2), characterized in that, Also includes: A clamping assembly (4) is provided on the surface of the connecting piece (3). The clamping assembly (4) includes an upper clamping ring (401) and a lower clamping ring (402). A fixing block (5) is fixedly connected to one side of both the upper clamping ring (401) and the lower clamping ring (402). A limiting component (6) is set inside the fixed block (5). The limiting component (6) includes a rotating rod (601), a threaded bolt (602) and a limiting nut (603). A fixed sleeve (7) is sleeved on one end of the cable body (1). A sliding sleeve (8) is disposed on the surface of a fixed sleeve (7), and a telescopic component (9) is slidably connected to the surface of the sliding sleeve (8). The telescopic component (9) includes a connecting sleeve (901) and a telescopic spring (902).
2. The protection structure for new energy charging cables according to claim 1, characterized in that: The clamping assembly (4) includes an upper clamping ring (401) sleeved on the surface of the connecting piece (3), and a lower clamping ring (402) is rotatably connected to one side of the upper clamping ring (401).
3. The protection structure for new energy charging cables according to claim 1, characterized in that: The limiting component (6) includes a rotating rod (601) rotatably connected inside the fixed block (5), and a threaded bolt (602) is sleeved on the surface of the rotating rod (601), and a limiting nut (603) is threadedly connected to the bottom of the threaded bolt (602).
4. The protection structure for new energy charging cables according to claim 1, characterized in that: The telescopic component (9) includes a connecting sleeve (901) that is slidably connected to the surface of the fixed sleeve (7), and a telescopic spring (902) is fixedly connected to the inner wall of one end of the connecting sleeve (901).
5. The protection structure for new energy charging cables according to claim 1, characterized in that: One end of the cable body (1) is connected to a charging connector (10), and a switch is provided on the surface of the charging connector (10).
6. The protection structure for new energy charging cables according to claim 1, characterized in that: One end of the fixed sleeve (7) is fixedly connected to a rotating disk (11), and the other end of the fixed sleeve (7) is fitted with a sealing ring (12).
7. The protection structure for new energy charging cables according to claim 1, characterized in that: Two sets of positioning blocks (13) are fixedly connected to the surface of the sliding sleeve (8), and the interior of the connecting sleeve (901) is provided with a sliding groove that matches the positioning blocks (13).
8. The protection structure for new energy charging cables according to claim 1, characterized in that: One end of the connecting sleeve (901) is fixedly connected to a retaining sleeve (14), and one side of the fixing block (5) is provided with a groove that is compatible with the threaded bolt (602).
Citation Information
Patent Citations
New energy automobile charging pile cable with cable protection function
CN217157763U