Terminal assembly, charging head and vehicle
By incorporating an insulation layer, a first metal layer, and a second metal layer into the cable, the problem of electro-corrosion in the cable-terminal welding area is solved, ensuring the stability of the cable and the vehicle body and the safety of the entire vehicle operation.
Patent Information
- Application Number
- CN202520341643.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In existing charging heads, the welding area between the cable and the terminal is prone to electro-corrosion.
The cable design includes an insulation layer, a first metal layer, and a second metal layer. The first metal layer is made of the same material as the terminal body. The exposed soldering area of the insulation layer is welded to the soldering section to ensure that the material of the soldering area is consistent and to avoid electro-corrosion.
This effectively avoids the electro-corrosion effect between metals, ensuring the stability of the cable and the vehicle body and the safety of the entire vehicle operation.
Smart Images
Figure CN223843207U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle charging head technology, and in particular to a terminal assembly, a charging head, and a vehicle. Background Technology
[0002] An existing charging head includes a housing, terminals, and a cable. The housing is used to install on the vehicle body. One end of the terminal is located inside the housing. The side of the housing exposed outside the vehicle body has a plug slot. The other end of the terminal is exposed outside the plug slot. The plug slot is for the charging gun of the charging pile to be plugged in. The end of the terminal exposed outside the plug slot is used to connect with the terminal of the charging gun. One end of the cable is connected to the end of the terminal located inside the housing, and the other end of the cable is used to connect to the vehicle's charging system.
[0003] Over time, existing charging heads are prone to electro-corrosion at the welded areas between the cables and terminals. Summary of the Invention
[0004] This utility model provides a terminal assembly, a charging head, and a vehicle, aiming to solve the problem that existing charging heads are prone to electro-corrosion at the welding area between the cable and the terminal over time.
[0005] To address the aforementioned issues, this utility model provides a terminal assembly, comprising a terminal body and a cable. The terminal body has a charging section and a welding section. The charging section is used to connect to a charging gun. The cable includes an insulating layer, a first metal layer, and a second metal layer. The first metal layer is made of the same material as the terminal body. The first metal layer covers the outside of the second metal layer. The insulating layer covers a portion of the outer surface of the first metal layer, such that the first metal layer has a welding area exposed to the insulating layer. The welding area is welded to the welding section.
[0006] Optionally, the welding segment is plate-shaped, the cable is plate-shaped, and along the length of the cable, the dimensions of the first metal layer and the second metal layer are both larger than the dimensions of the insulation layer. The side of the first metal layer facing the welding segment is welded to the side of the welding segment facing the welding area.
[0007] Optionally, the welding segment is plate-shaped, the cable is plate-shaped, and the first metal layer of the cable facing the welding segment is exposed outside the insulation layer and welded to the side of the welding segment facing the welding area.
[0008] Optionally, the length of the welding segment is greater than the length of the welding area, and the end of the welding area near the welding segment is spaced apart from the charging segment.
[0009] Optionally, the end of the welding segment away from the charging segment abuts against the end of the insulating layer near the charging segment.
[0010] Optionally, the thickness of the second metal layer is b, and the thickness of the first metal layer is a, that is:
[0011] b > 2a.
[0012] Optionally, the thickness of the second metal layer is b, the thickness of the insulating layer is c, and the thickness of the first metal layer is a, that is:
[0013] b > c > 2a.
[0014] Optionally, the density of the second metal layer is smaller than that of the first metal layer.
[0015] The terminal assembly provided in this embodiment includes a terminal body and a cable. The cable includes an insulation layer, a first metal layer, and a second metal layer. The first metal layer is disposed between the insulation layer and the second metal layer. The first metal layer has a welding area exposed outside the insulation layer. The welding area is welded to one side of the welding section of the terminal body. The material of the welding area is the same as the material of the welding section. Under long-term use, it can effectively avoid the electro-corrosion effect between metals. The cable is plate-shaped and can be bent and assembled at will to fit the vehicle body, which is convenient for installation and ensures the stability of the cable fastened to the vehicle body, thus ensuring the safety of the vehicle operation.
[0016] On the other hand, this utility model embodiment also provides a charging head, including a housing and the terminal assembly, wherein the terminal assembly is installed in the housing, and the end of the charging segment away from the cable is exposed outside the housing.
[0017] On the other hand, this utility model embodiment also provides a vehicle, including a body and the aforementioned charging head, with the housing mounted on the vehicle body. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of the structure of a terminal assembly provided in an embodiment of the present invention;
[0020] Figure 2 yes Figure 1 Another perspective;
[0021] Figure 3 yes Figure 1 Another perspective;
[0022] Figure 4 yes Figure 3 AA section view;
[0023] Figure 5 yes Figure 2 BB cross-sectional view.
[0024] Reference numerals in the accompanying drawings: 1. Terminal body; 11. Charging section; 12. Soldering section; 13. Transition section; 2. Cable; 21. Insulation layer; 22. First metal layer; 221. Soldering area; 23. Second metal layer. Detailed Implementation
[0025] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] like Figures 1 to 5 As shown, this utility model embodiment provides a terminal assembly, including a terminal body 1 and a cable 2. The terminal body 1 has a charging section 11 and a welding section 12. The charging section 11 is used to connect to a charging gun. The cable 2 includes an insulating layer 21, a first metal layer 22 and a second metal layer 23. The material of the first metal layer 22 is the same as that of the terminal body. The first metal layer 22 covers the outside of the second metal layer 23. The insulating layer 21 covers part of the outer surface of the first metal layer 22, so that the first metal layer 22 has a welding area 221 exposed to the insulating layer 21. The welding area 221 is welded to the welding section 12.
[0028] In one embodiment, the cable 2, from the inside out, consists of: a second metal layer 23, a first metal layer 22, and an insulation layer 21 (see...). Figure 5One end of the cable 2 is electrically connected to the electrical device, and the other end of the cable 2 is welded to the welding section 12 of the terminal body 1. The first metal layer 22 inside the cable 2 is made of the same material as the welding section 12, so that electro-corrosion is not likely to occur at the welding point between the terminal body 1 and the cable 2.
[0029] In this embodiment, the first metal layer 22 can be made of copper, the second metal layer 23 can be made of aluminum, the insulating layer 21 is made of plastic or other insulating material, and the welding section 12 is also made of copper. The welding area 221 of the first metal layer 22 is welded to the welding section 12.
[0030] In one embodiment, the welding section 12 is plate-shaped, the cable 2 is plate-shaped, and along the length of the cable 2, the dimensions of the first metal layer 22 and the second metal layer 23 are both larger than the dimensions of the insulation layer 21. The side of the first metal layer 22 facing the welding section 12 is welded to the side of the welding section 12 facing the welding area 221.
[0031] In this embodiment, as Figure 4 As shown, the lengths of the first metal layer 22 and the second metal layer 23 extending along the length of the cable 2 are greater than the length of the insulation layer 21, so that the section of the first metal layer 22 near the welding section 12 is completely exposed outside the insulation layer 21, and the welding area 221 of the first metal layer 22 is welded to one side of the welding section 12.
[0032] In one embodiment, the length of the welding segment 12 is greater than the length of the welding area 221, and the end of the welding area 221 near the welding segment 12 is spaced apart from the charging segment 11.
[0033] In this embodiment, the length of the portion of the first metal layer 22 exposed outside the insulating layer 21 is less than the length of the soldering area 221, so that the cable 2 and the terminal body 1 can conduct electricity well.
[0034] In one embodiment, the end of the welding section 12 away from the charging section 11 is spaced apart from the end of the insulating layer 21 near the charging section 11.
[0035] In this embodiment, the charging section 11 is cylindrical and the welding section 12 is plate-shaped. One end of the welding section 12 is connected to the end of the charging section 11 near the insulating layer 21. The terminal body 1 also includes a transition section 13 located between the charging section 11 and the welding section 12. The outer diameter of the transition section 13 is larger than that of the welding section 12. The two sides of the connection surface between the transition section 13 and the welding section 12 are arc-shaped transition surfaces. The transition section 13 allows the welding section 12 and the charging section 11 to be arranged at intervals. The other end of the welding section 12 extends along the length direction of the cable 2 to the end of the insulating layer 21 of the cable 2 near the charging section 11 and is spaced apart from it to facilitate welding.
[0036] In one embodiment, the density of the second metal layer 23 is lower than that of the first metal layer 22.
[0037] In other embodiments, such as Figure 5 As shown, the thickness of the second metal layer 23 is b, the thickness of the insulating layer 21 is c, and the thickness of the first metal layer 22 is a, that is: b > c > 2a.
[0038] In this embodiment, the thickness of the second metal layer 23 is greater than the thickness of the first metal layer 22, and the density of the second metal layer 23 can be less than the density of the first metal layer 22. The first metal layer 22 has a larger density and a smaller volume ratio, which reduces the overall weight of the cable 2 while ensuring its conductivity. The volume ratio of the outer insulation layer 21 of the cable 2 is also much larger than that of the first metal layer 22, which is beneficial to improving the insulation performance of the cable 2 while ensuring its conductivity.
[0039] The terminal assembly provided in this embodiment includes a terminal body 1 and a cable 2. The cable 2 includes an insulation layer 21, a first metal layer 22, and a second metal layer 23. The first metal layer 22 is disposed between the insulation layer 21 and the second metal layer 23. The first metal layer 22 has a welding area 221 exposed outside the insulation layer 21. The welding area 221 is welded to one side of the welding section 12 of the terminal body 1. The material of the welding area 221 is the same as the material of the welding section 12. Under long-term use, it can effectively avoid the electro-corrosion effect between metals. The cable 2 is plate-shaped and can be bent and assembled at will to fit the vehicle body, ensuring the stability of the cable 2 fastened to the vehicle body and ensuring the safety of the vehicle operation.
[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0041] In addition, one embodiment of the present invention also provides a charging head, including a housing and the aforementioned terminal assembly, wherein the terminal assembly 1 is installed in the housing, and the end of the charging section 11 away from the cable is exposed outside the housing.
[0042] In addition, one embodiment of this utility model also provides a vehicle, including a vehicle body and the aforementioned charging head, with the housing mounted on the vehicle body.
[0043] In other embodiments, the welding segment 12 is plate-shaped, the cable 2 is plate-shaped, and the first metal layer 22 of the cable 2 facing the welding segment 12 is exposed on the insulating layer 21 and welded to the side of the welding segment 12 facing the welding area 221.
[0044] In this embodiment, the first metal layer 22 is only exposed in the area where it is welded to the welding section 12, and the rest is covered by the insulating layer 21.
[0045] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model 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 utility model, and should all be included within the protection scope of this utility model.
Claims
1. A terminal assembly, characterized in that, The device includes a terminal body (1) and a cable (2). The terminal body (1) has a charging section (11) and a welding section (12). The charging section (11) is used to connect to a charging gun. The cable (2) includes an insulating layer (21), a first metal layer (22) and a second metal layer (23). The material of the first metal layer (22) is the same as that of the terminal body (1). The first metal layer (22) covers the outside of the second metal layer (23). The insulating layer (21) covers part of the outer surface of the first metal layer (22) so that the first metal layer (22) has a welding area (221) exposed to the insulating layer (21). The welding area (221) is welded to the welding section (12).
2. The terminal assembly according to claim 1, characterized in that, The welding section (12) is plate-shaped, and the cable (2) is plate-shaped. Along the length of the cable (2), the size of the first metal layer (22) and the second metal layer (23) are both larger than the size of the insulation layer (21). The side of the first metal layer (22) facing the welding section (12) is welded to the side of the welding section (12) facing the welding area (221).
3. The terminal assembly according to claim 1, characterized in that, The welding section (12) is plate-shaped, the cable (2) is plate-shaped, and the first metal layer (22) of the cable (2) facing the side of the welding section (12) is exposed on the insulation layer (21) and welded to the side of the welding section (12) facing the welding area (221).
4. The terminal assembly according to claim 2, characterized in that, The length of the welding segment (12) is greater than the length of the welding area (221), and the welding area (221) is arranged at an interval from the charging segment (11) at one end near the welding segment (12).
5. The terminal assembly according to claim 4, characterized in that, The end of the welding section (12) away from the charging section (11) abuts against the end of the insulating layer (21) near the charging section (11).
6. The terminal assembly according to claim 2, characterized in that, The thickness of the second metal layer (23) is b, and the thickness of the first metal layer (22) is a, that is: b > 2a.
7. The terminal assembly according to claim 2, characterized in that, The thickness of the second metal layer (23) is b, the thickness of the insulating layer (21) is c, and the thickness of the first metal layer (22) is a, that is: b > c > 2a.
8. The terminal assembly according to claim 7, characterized in that, The density of the second metal layer (23) is smaller than that of the first metal layer (22).
9. A charging head, characterized in that, The device includes a housing and a terminal assembly as described in any one of claims 1 to 8, the terminal assembly being mounted in the housing, and the end of the charging section (11) away from the cable (2) being exposed in the housing.
10. A vehicle, characterized in that, The vehicle includes the vehicle body and the charging head as described in claim 9, wherein the housing is mounted on the vehicle body.