Charging gun connection component

Abstract

This invention relates to charging pile cables and charging gun connection assemblies, belonging to the technical field of new energy vehicle charging equipment. Addressing the problem of loosening and detachment in existing charging gun and cable connections, it provides a solution. The solution includes a cable body comprising a cable core, which includes a power cable, a signal transmission cable, and a control cable. An insulation layer, an armor layer, and a sheath layer are sequentially wrapped around the cable core. A fiberglass layer fills the gap between the insulation layer and the cable core. The connection assembly uses a threaded ring, an mounting ring, and the charging gun body to form a three-section threaded connection structure, locked by a ring fitted onto the charging gun body. Annularly arranged inserts on the sidewall of the ring engage with corresponding slots on the threaded ring. Combined with a spring-driven automatic reset mechanism and an L-shaped groove guide structure, this ensures that the threaded ring cannot rotate or loosen after connection. This solution effectively solves the problem of easy failure in traditional locking block connections through dual improvements in the locking structure and cable protection layer.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle charging equipment technology, and in particular to charging pile cables and charging gun connection components. Background Technology

[0002] With the increasing popularity of electric vehicles, the demand for charging stations, as an important supporting facility for electric vehicles, is growing day by day. Currently, there are charging guns and their cables that can be plugged in and detached to facilitate replacement.

[0003] However, the existing connection method between the charging pile cable and the charging gun is mostly to fix them by setting a clip inside. In actual use, it has been found that the connection method is not strong enough and cannot withstand the impact of some car owners discarding the car directly on the ground after use. As a result, it is easy for the cable to loosen or fall off, which affects the normal charging process. Utility Model Content

[0004] The purpose of this utility model is to solve the shortcomings of the existing technology, which is prone to loosening or falling off, affecting the normal charging process, and proposes a charging pile cable and charging gun connection assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A charging pile cable includes a cable body, the cable body including a cable core, and the cable core comprising a power cable, a signal transmission cable, and a control cable;

[0007] The insulation layer, armor layer, and sheath layer are sequentially wrapped around the outside of the cable core;

[0008] The gap between the insulation layer and the cable core is filled with a glass fiber layer, which, together with the insulation layer, enhances the insulation performance, mechanical strength, and high-temperature resistance of the cable.

[0009] A charging gun connection assembly includes a charging gun body, one end of which is provided with a plug-in end, which is plugged into and engaged with the insertion end of the charging gun body.

[0010] The mounting ring is fixedly sleeved on the outer wall of the cable body;

[0011] A threaded ring is threaded to the outer wall of the mounting ring and can also be threaded to the outer wall of the charging gun body;

[0012] A circular ring is fitted onto the outer wall of the charging gun body, and a plurality of ring-shaped inserts are provided on one side of the circular ring;

[0013] The threaded ring has multiple slots on one side that correspond to the inserts;

[0014] When the insert is inserted into the slot, it restricts the rotation of the threaded ring, thereby achieving a locking connection between the cable body and the charging gun body.

[0015] In one possible design, a limiting ring is fixedly sleeved on the outer wall of the mounting ring, the limiting ring being used to limit the axial displacement of the threaded ring on the mounting ring.

[0016] In one possible design, an annular shell is fixedly fitted onto the outer wall of the charging gun body, and a spring is provided inside the annular shell. The two ends of the spring abut against the inner wall of the annular shell and the ring respectively through spring seats.

[0017] In one possible design, the spring is used to drive the ring to reset so that the insert is inserted into the slot.

[0018] In one possible design, a plurality of connecting strips are fixedly connected to one side of the ring, and a plurality of through holes are provided on the side wall of the annular shell. The connecting strips pass through the through holes and extend to the outside of the annular shell, and the ends of the plurality of connecting strips are fixedly connected to the same connecting ring.

[0019] In one possible design, the limiting block is located within the L-shaped groove and can slide and rotate along the L-shaped groove to guide the unlocking or locking operation of the ring.

[0020] In this application, during actual use, the ring is first slid along the L-shaped groove, then rotated to move it to the other end of the L-shaped groove. Then, the plug end of the cable body can be inserted into the insertion end of the charging gun body. Next, the threaded ring is rotated to move it and thread it onto the outer wall of the charging gun body, connecting the cable body and the charging gun body. Then, the ring can be rotated, at which point the ring will be reset by the force of the spring, causing the insert to be inserted into the corresponding groove, thereby preventing the threaded ring from rotating, thus achieving the connection and fixation between the charging gun body and the cable body.

[0021] In this utility model, the charging pile cable and charging gun connection assembly can be matched with the original structure by filling the gap between the insulation layer and the cable core with a glass fiber layer, thereby enhancing the insulation performance, mechanical strength and high temperature resistance of the cable, and effectively improving the safety and service life of the cable.

[0022] In this utility model, the charging pile cable and charging gun connection assembly can achieve the connection between the cable and the charging gun through a threaded ring and a circular ring. At the same time, the threaded ring can be locked to ensure the firmness and stability of the connection between the two, avoid loosening or falling off during use, and improve the safety of the charging process.

[0023] In this invention, during use, the unique threaded ring connects to the mounting ring and the charging gun body, and the locking structure of the insert on the ring and the groove of the threaded ring greatly enhances the firmness and stability of the connection. This effectively prevents loosening or falling off, ensuring the normal operation of the charging process. Moreover, this connection method is easy to operate, achieving the purpose of convenient plug-in and disassembly replacement, and overcoming the defects of the traditional card block connection method that is not firm. It can improve the overall performance and reliability of the charging pile cable and charging gun connection components. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the charging gun connection assembly proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the cable structure of the charging gun connection assembly proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the charging gun structure of the charging gun connection assembly proposed in this utility model;

[0027] Figure 4 This utility model Figure 3 Enlarged view of the structure of section A;

[0028] Figure 5 This is a schematic diagram of the planar structure of the charging pile cable proposed in this utility model.

[0029] In the diagram: 1. Charging gun body; 2. Cable body; 3. Mounting ring; 4. Groove; 5. Limiting ring; 6. Threaded ring; 7. L-shaped groove; 8. Through hole; 9. Annular shell; 10. Ring; 11. Insert; 12. Spring; 13. Connecting strip; 14. Connecting ring; 15. Power cable; 16. Sheath layer; 17. Armor layer; 18. Insulation layer; 19. Signal transmission cable; 21. Control cable. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1

[0032] Reference Figure 5The charging pile cable includes: a cable body 2, which is composed of a cable core, which further includes a power cable 15, a signal transmission cable 19, and a control cable 21. These cables jointly undertake the tasks of power transmission, signal transmission, and control command transmission. Outside the cable core, an insulation layer 18, an armor layer 17, and a sheath layer 16 are sequentially wrapped. The insulation layer 18 provides electrical insulation to prevent current leakage; the armor layer 17 enhances the mechanical strength of the cable and protects the internal cable core from external physical damage; the sheath layer 16, as the outermost layer, provides further protection for the entire cable, preventing damage from environmental factors such as moisture and chemicals.

[0033] The gap between the insulation layer 18 and the cable core is filled with a glass fiber layer. Glass fiber has good insulation properties and high temperature resistance, which can effectively improve the safety and service life of the cable.

[0034] Reference Figure 1-2 The charging gun connection assembly includes the aforementioned charging pile cable, as well as components such as the charging gun body 1, threaded ring 6, and circular ring 10.

[0035] Connection between the charging gun body and the cable body: One end of the cable body 2 is provided with a plug-in end, which mates with the insertion end of the charging gun body 1. A mounting ring 3 is fixedly sleeved on the outer wall of the cable body 2, and a threaded ring 6 is threadedly sleeved on the outer wall of the mounting ring 3, and the threaded ring 6 can be threaded onto the outer wall of the charging gun body 1. By rotating the threaded ring 6, it can move between the mounting ring 3 and the outer wall of the charging gun body 1, thereby achieving the initial connection between the cable body 2 and the charging gun body 1.

[0036] Reference Figure 3-4 To prevent the threaded ring 6 from loosening or rotating during use, which could lead to connection failure between the cable body 2 and the charging gun body 1, a ring 10 is provided to lock the threaded ring 6. The ring 10 is fitted onto the outer wall of the charging gun body 1. Multiple annularly arranged inserts 11 are fixedly provided on one side of the ring 10, and multiple annularly arranged grooves 4 are opened on one side of the threaded ring 6. The inserts 11 engage with the grooves 4 respectively. After the cable body 2 is connected to the charging gun body 1, the ring 10 is moved to insert the inserts 11 into the corresponding grooves 4, thereby restricting the rotation of the threaded ring 6 and achieving a secure connection between the charging gun body 1 and the cable body 2.

[0037] The insert 11 can be designed with a trapezoidal, semi-circular, or polygonal cross-section, and the corresponding slot 4 can be matched with it. The trapezoidal cross-section insert has a self-locking inclined surface structure, which can form a mechanical self-lock after insertion.

[0038] This application can be used in the field of new energy vehicle charging equipment, or in other fields applicable to this application.

[0039] Example 2

[0040] refer to Figure 2 An improvement based on Embodiment 1: The charging gun connection assembly is applied to the field of new energy vehicle charging equipment. A limiting ring 5 is fixedly sleeved on the outer wall of the mounting ring 3. The function of the limiting ring 5 is to limit the movement range of the threaded ring 6 on the mounting ring 3, so as to ensure the normal use of the connection assembly.

[0041] Reference Figure 4 The outer wall of the charging gun body 1 is fixedly fitted with an annular shell 9. A spring 12 is installed inside the annular shell 9. The two ends of the spring 12 abut against the inner wall of the annular shell 9 and one side of the ring 10, respectively, via spring seats. When it is necessary to unlock the threaded ring 6, the ring 10 is moved to overcome the elastic force of the spring 12. After the operation is completed, the ring 10 is released, and it will automatically reset under the action of the spring 12, allowing the insert 11 to re-insert into the groove 4, thus locking the threaded ring 6. The operation is convenient and quick. The spring 12 is a stainless steel helical compression spring with a wire diameter of 0.5-1.2mm, an outer diameter of 5-8mm, and an elastic coefficient controlled within the range of 5-8N / mm. This provides sufficient reset driving force while avoiding excessive tightness during operation.

[0042] Multiple connecting strips 13 are fixedly installed on one side of the ring 10, and multiple through holes 8 are opened on the side wall of the annular shell 9. One end of the connecting strips 13 extends to the outside of the annular shell 9 through the through holes 8, and the same connecting ring 14 is fixedly installed on one end of the multiple connecting strips 13. The operator can move the connecting strips 13 by pulling or pushing the connecting ring 14, thereby moving the ring 10, realizing the movement operation of the ring 10, and facilitating the unlocking or locking of the threaded ring 6.

[0043] The outer wall of the charging gun body 1 has an L-shaped groove 7, and a limiting block is fixedly installed on the inner wall of the ring 10, with the limiting block located inside the L-shaped groove 7. During installation or disassembly, the ring 10 is first slid along the L-shaped groove 7, and then rotated to move it to the other end of the L-shaped groove 7. At this time, the position of the ring 10 is limited, which facilitates the insertion operation of the cable body 2 and the charging gun body 1, as well as the subsequent rotation operation of the threaded ring 6. The cooperation of the L-shaped groove 7 and the limiting block provides clear guidance for the operation of the ring 10, ensuring the accuracy and reliability of the installation and disassembly of the connection components.

[0044] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A charging gun connection assembly, including a charging pile cable, wherein the cable body (2) includes a cable core, the cable core comprising a power cable (15), a signal transmission cable (19) and a control cable (21). The insulation layer (18), armor layer (17) and sheath layer (16) are sequentially wrapped around the outside of the cable core. The gap between the insulation layer (18) and the cable core is filled with a glass fiber layer, which, together with the insulation layer (18), enhances the insulation performance, mechanical strength, and high-temperature resistance of the cable. The cable is characterized by further comprising: The charging gun body (1) has a plug-in end at one end of the cable body (2), which is plugged into the insertion end of the charging gun body (1). The mounting ring (3) is fixedly sleeved on the outer wall of the cable body (2); A threaded ring (6) is threaded to the outer wall of the mounting ring (3) and can be threaded to the outer wall of the charging gun body (1); A ring (10) is fitted onto the outer wall of the charging gun body (1), and a plurality of ring-shaped inserts (11) are provided on one side of the ring (10). The threaded ring (6) has multiple slots (4) on one side that correspond to the insert (11). When the insert (11) is inserted into the slot (4), it restricts the rotation of the threaded ring (6) and achieves a locking connection between the cable body (2) and the charging gun body (1).

2. The charging gun connection assembly of claim 1, wherein, The outer wall of the mounting ring (3) is fixedly fitted with a limiting ring (5), which is used to limit the axial displacement of the threaded ring (6) on the mounting ring (3).

3. The charging gun connection assembly of claim 1, wherein, The outer wall of the charging gun body (1) is fixedly fitted with an annular shell (9), and a spring (12) is provided inside the annular shell (9). The two ends of the spring (12) abut against the inner wall of the annular shell (9) and the ring (10) respectively through spring seats.

4. The charging gun connection assembly of claim 3, wherein, The spring (12) is used to drive the ring (10) to reset so that the insert (11) can be inserted into the slot (4).

5. The charging gun connection assembly of claim 4, wherein, A plurality of connecting strips (13) are fixedly connected to one side of the ring (10), and a plurality of through holes (8) are provided on the side wall of the annular shell (9). The connecting strips (13) pass through the through holes (8) and extend to the outside of the annular shell (9). The ends of the plurality of connecting strips (13) are fixedly connected to the same connecting ring (14).

6. The charging gun connection assembly of claim 1, wherein, The outer wall of the charging gun body (1) is provided with an L-shaped groove (7), and the inner wall of the ring (10) is fixed with a limiting block.

7. The charging gun connection assembly of claim 6, wherein, The limiting block is located in the L-shaped groove (7) and can slide and rotate along the L-shaped groove (7) to guide the unlocking or locking operation of the ring (10).

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