Terminal structure and charging gun

Abstract

The utility model discloses a terminal structure and a charging gun, comprising a first terminal head, a second terminal head, a first cable, a second cable, a three-way joint, a first terminal tail and a second terminal tail, a first diversion pipe is arranged in the first terminal head, one end of the first diversion pipe penetrates out of the first terminal head, a second diversion pipe is arranged in the second terminal head, and the other end of the first diversion pipe penetrates out of the second terminal head. A first cooling liquid pipeline is arranged in the first cable, the first end of the first cable is connected with the first terminal head, a first sealing ring is arranged between the first cable and the first terminal head, and the end, penetrating out of the first terminal head, of the first flow guide pipe extends into the first cable to be communicated with the first cooling liquid pipeline. A second cooling liquid pipeline is arranged in the second cable, the first end of the second cable is connected with the second terminal head, and a second sealing ring is arranged between the second cable and the second terminal head. The utility model has the advantages of reasonable design, safety in use and the like.

Description

Technical Field

[0001] This utility model belongs to the field of charging gun technology, specifically relating to a terminal structure and a charging gun. Background Technology

[0002] Existing high-power DC charging guns have limited heat removal capacity because the coolant passes through the surface of the plug tail. As a result, the temperature at the plug is relatively high. During long-term plugging and unplugging, the increased contact resistance leads to increased heat generation and higher temperature, which has a certain impact on product safety. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a terminal structure and charging gun with high safety.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] Terminal structure, including:

[0006] The first terminal head has a first guide tube inside, and one end of the first guide tube extends out of the first terminal head;

[0007] The second terminal head has a second guide tube inside, and one end of the second guide tube extends out of the second terminal head;

[0008] The first cable has a first coolant pipe inside, the first end of the first cable is connected to the first terminal head and a first sealing ring is provided between the first cable and the first terminal head, and the end of the first guide tube that extends out of the first terminal head extends into the first cable and communicates with the first coolant pipe.

[0009] The second cable has a second coolant pipe inside. The first end of the second cable is connected to the second terminal head and a second sealing ring is provided between the second cable and the second terminal head. The end of the second guide tube that passes out of the second terminal head extends into the second cable and communicates with the second coolant pipe.

[0010] A three-way connector is located between the first terminal and the second terminal. The first end of the three-way connector passes through the first terminal and communicates with the first guide tube. The second end of the three-way connector passes through the second terminal and communicates with the second guide tube. The third end of the three-way connector is the first coolant interface.

[0011] The first terminal tail is connected to the second end of the first cable and a third sealing ring is provided between the first terminal tail and the first cable. The first terminal tail is provided with a second coolant interface, which is connected to the first coolant pipe.

[0012] And a second terminal tail, which is connected to the second end of the second cable and a fourth sealing ring is provided between the second terminal tail and the second cable. A third coolant interface is provided on the second terminal tail, and the third coolant interface is connected to the second coolant pipe.

[0013] Preferably, it also includes a cover, which is sleeved on the first terminal head, the second terminal head, and the tee connector.

[0014] Preferably, both the second and third coolant interfaces are coolant inlets or both are coolant outlets, and the first and second coolant interfaces are not simultaneously coolant inlets or coolant outlets.

[0015] Preferably, the end of the first terminal furthest from the first cable and the end of the second terminal furthest from the second cable are both copper busbar terminals.

[0016] Preferably, a temperature sensor is provided in the first terminal head and / or the second terminal head.

[0017] This utility model also discloses a charging gun, including the aforementioned terminal structure.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] This application includes a first terminal head, a second terminal head, a first cable, a second cable, a first guide tube, a second guide tube, a first terminal tail, and a second terminal tail, etc. In actual use, a coolant circuit can be formed, thereby removing heat from the first terminal head and the second terminal head, as well as from the first cable and the second cable, thus achieving the purpose of safe and long-term charging with high current. The design is reasonable and the use is safe.

[0020] In summary, this utility model has the advantages of reasonable design and safe use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the first terminal head, second terminal head, first cable, second cable, tee connector and cover body of this utility model when connected;

[0022] Figure 2 yes Figure 1 A structural diagram showing the structure after removing the first terminal head and the cover;

[0023] Figure 3 This is a structural diagram of the first terminal tail, the second terminal tail, the first cable, and the second cable;

[0024] Figure 4 This is a schematic diagram of the structure of the charging gun of this utility model;

[0025] The components include: first terminal head 1, second terminal head 2, first cable 3, second cable 4, tee connector 5, cover 6, first terminal tail 7, second terminal tail 8, first guide tube 9, waterproof nut 10, first coolant interface 51, second coolant interface 11, and third coolant interface 12. Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0027] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0028] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] 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.

[0031] Example 1

[0032] In this embodiment, a terminal structure and a charging gun are proposed, which allow coolant to directly reach the top of the terminal head, thereby removing heat and rapidly reducing the temperature of the terminal head. This ensures the long-term safe use of the terminal structure. Furthermore, it can work in conjunction with cables to remove heat from within the cables. In existing automotive charging processes, the plug and socket use a contact connection, and the charging current is large, resulting in significant heat generation on the terminal structure of the charging gun. Overheating can affect charging safety. This application can continuously remove heat through coolant, thereby achieving the goals of high current, safety, and long-term charging.

[0033] like Figure 1-3 As shown, in one embodiment of this utility model, the terminal structure includes a first terminal head 1, a second terminal head 2, a first cable 3, a second cable 4, a tee connector 5, a cover 6, a first terminal tail 7, and a second terminal tail 8. The first terminal head 1 has a first guide tube 9 inside, with one end of the first guide tube 9 extending out of the first terminal head 1. The second terminal head 2 has a second guide tube inside, with one end of the second guide tube extending out of the second terminal head 2. Both the first terminal head 1 and the second terminal head 2 are hollow internally and open at one end. The first guide tube 9 passes through the open end of the first terminal head 1, and the second guide tube 8... The flow tube passes through one end of the opening of the second terminal head 2. The first cable 3 is provided with a first coolant pipe inside. The first end of the first cable 3 is connected to the first terminal head 1 and a first sealing ring is provided between the first cable 3 and the first terminal head 1. One end of the first flow tube 9 extends out of the first terminal head 1 and into the first cable 3, communicating with the first coolant pipe. The second cable 4 is provided with a second coolant pipe inside. The first end of the second cable 4 is connected to the second terminal head 2 and a second sealing ring is provided between the second cable 4 and the second terminal head 2. One end of the second flow tube extends out of the second terminal head 2 and into the second cable 4, communicating with the second coolant pipe.

[0034] The first cable 3 and the second cable 4 are existing publicly available technologies. They may include an insulating jacket, and inside the insulating jacket, several signal transmission lines, several power lines, PE cables, and specific coolant pipes or other liquid-cooled heat dissipation spiral metal transmission copper cable structures may be provided. The first terminal head 1 near the first cable 3 and the second terminal head 2 near the second cable 4 are both provided with external threads. At this time, a waterproof nut 10 can be fitted onto the first sealing ring or the second sealing ring to engage with the external threads, thereby locking the first sealing ring or the second sealing ring to prevent leakage. The first terminal head 1 and / or the second terminal head 2 are provided with temperature sensors. The temperature sensors can detect the temperature in time and provide an early warning of excessive temperature.

[0035] The tee connector 5 of this utility model is disposed between the first terminal head 1 and the second terminal head 2. The first end of the tee connector 5 passes through the first terminal head 1 and communicates with the first guide tube 9. The second end of the tee connector 5 passes through the second terminal head 2 and communicates with the second guide tube. The third end of the tee connector 5 is the first coolant interface 51. The cover 6 is sleeved on the first terminal head 1, the second terminal head 2, and the tee connector 5, thereby integrating and fixing the first terminal head 1, the second terminal head 2, and the tee connector 5 together. The first terminal tail 7 is connected to the second end of the first cable 3 and the... A third sealing ring is provided between the first terminal tail 7 and the first cable 3. A second coolant interface 11 is provided on the first terminal tail 7. The second coolant interface 11 is connected to the first coolant pipe. The second terminal tail 8 is connected to the second end of the second cable 4 and a fourth sealing ring is provided between the second terminal tail 8 and the second cable 4. A third coolant interface 12 is provided on the second terminal tail 8. The third coolant interface 12 is connected to the second coolant pipe. The end of the first terminal tail 7 away from the first cable 3 and the end of the second terminal tail 8 away from the second cable 4 are both copper busbar terminals.

[0036] In this invention, both the second coolant inlet 11 and the third coolant inlet 12 are coolant inlets or both are coolant outlets. The first coolant inlet 51 and the second coolant inlet 11 are not simultaneously coolant inlets or outlets. Specifically, when both the second coolant inlet 11 and the third coolant inlet 12 are coolant inlets, the first coolant inlet 51 is a coolant outlet; when both the second coolant inlet 11 and the third coolant inlet 12 are coolant outlets, the first coolant inlet 51 is a coolant inlet. This allows a coolant circuit to be formed within the three-way connector 5, the first terminal head 1, the second terminal head 2, the first cable 3, the second cable 4, the first terminal tail 7, and the second terminal tail 8. In practical use, the first coolant inlet 51, the second coolant inlet 11, and the third coolant inlet 12 are all connected to the charging pile. At this time, the coolant... Coolant can flow out of the charging pile, then through the second coolant inlet 11 and the third coolant inlet 12, then through the first cable 3 and the second cable 4, and then into the first coolant inlet 51, finally returning to the charging pile. Alternatively, coolant can flow out of the charging pile, then through the first coolant inlet 51, then through the first cable 3 and the second cable 4, and then into the second coolant inlet 11 and the third coolant inlet 12, finally returning to the charging pile. In this process, it carries away the heat from the first terminal head 1, the second terminal head 2, the first cable 3, the second cable 4, the first terminal tail 7, and the second terminal tail 8. The first terminal tail 7 near the first cable 3 and the second terminal tail 8 near the second cable 4 are also provided with external threads. At this time, a waterproof nut 10 can be sleeved on the third or fourth sealing ring to cooperate with the external threads, thereby locking the third or fourth sealing ring to prevent leakage.

[0037] Please continue to refer to Figure 4 This utility model also discloses a charging gun, including the terminal structure described above. The charging gun may also include other signal lines, wires, gun head housings, etc. The signal lines, wires, gun head housings, etc. are existing technologies and will not be described in detail here.

[0038] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A terminal structure, characterized in that, include: The first terminal head has a first guide tube inside, and one end of the first guide tube extends out of the first terminal head; The second terminal head has a second guide tube inside, and one end of the second guide tube extends out of the second terminal head; The first cable has a first coolant pipe inside, the first end of the first cable is connected to the first terminal head and a first sealing ring is provided between the first cable and the first terminal head, and the end of the first guide tube that extends out of the first terminal head extends into the first cable and communicates with the first coolant pipe. The second cable has a second coolant pipe inside. The first end of the second cable is connected to the second terminal head and a second sealing ring is provided between the second cable and the second terminal head. The end of the second guide tube that passes out of the second terminal head extends into the second cable and communicates with the second coolant pipe. A three-way connector is located between the first terminal and the second terminal. The first end of the three-way connector passes through the first terminal and communicates with the first guide tube. The second end of the three-way connector passes through the second terminal and communicates with the second guide tube. The third end of the three-way connector is the first coolant interface. The first terminal tail is connected to the second end of the first cable and a third sealing ring is provided between the first terminal tail and the first cable. The first terminal tail is provided with a second coolant interface, which is connected to the first coolant pipe. And a second terminal tail, which is connected to the second end of the second cable and a fourth sealing ring is provided between the second terminal tail and the second cable. A third coolant interface is provided on the second terminal tail, and the third coolant interface is connected to the second coolant pipe.

2. The terminal structure according to claim 1, characterized in that: It also includes a cover, which is fitted onto the first terminal head, the second terminal head, and the tee connector.

3. The terminal structure according to claim 1, characterized in that: The second and third coolant interfaces are both coolant inlets or both coolant outlets. The first and second coolant interfaces are not both coolant inlets or coolant outlets.

4. The terminal structure according to claim 1, characterized in that: Both the end of the first terminal furthest from the first cable and the end of the second terminal furthest from the second cable are copper busbar terminals.

5. The terminal structure according to claim 1, characterized in that: A temperature sensor is provided inside the first terminal head and / or the second terminal head.

6. A charging gun, characterized in that: Includes the terminal structure described in any one of claims 1 to 5.

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