Charging gun

Abstract

The utility model discloses a charging gun, which comprises a shell and a sealing cavity arranged in the shell. And a cable is arranged in the sealing cavity in a penetrating manner. The cable is internally provided with a plurality of power wires, a ground wire, a second gas pipe and a plurality of first gas pipes, wherein the second gas pipe and the first gas pipe are used for conveying a cooling medium. And each power line is tightly attached to at least one first gas transmission pipe. The ground wire is tightly attached to the second gas conveying pipe. And a filler for sealing the interior of the cable is arranged in the cable. A terminal assembly is arranged in the sealing cavity and connected with the power line, one end of the first gas transmission pipe is arranged close to the terminal assembly, and one end of the second gas transmission pipe is communicated with the sealing cavity. And the cooling medium exchanges heat with the terminal assembly in the sealing cavity, so that the terminal assembly is effectively cooled. A plurality of cooling pipes are arranged in the cable, the cooling efficiency of the charging gun in the working process is effectively improved, and the service life of the product is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging technology, specifically to a charging gun. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the market share of electric vehicles is constantly increasing, and users' requirements for charging efficiency are also generally rising. While high-power charging equipment can effectively improve charging efficiency, it also brings the safety hazard of excessive temperature rise at the charging terminals. Excessive temperature will reduce the lifespan of the charging equipment, and relying on natural heat dissipation is unlikely to effectively cool the heat-generating areas. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a charging gun that can solve the problem of excessively high charging terminal temperature and dynamically adjust the cooling airflow to improve the user experience.

[0004] This utility model proposes a charging gun, including a housing and a sealed cavity disposed within the housing;

[0005] A cable is threaded through the sealed cavity. The cable contains multiple power lines, a ground line, a second gas supply pipe for conveying cooling medium, and multiple first gas supply pipes. Each power line is tightly attached to at least one first gas supply pipe. The ground line is tightly attached to the second gas supply pipe. The cable contains a filler to seal the inside of the cable.

[0006] The sealed cavity is provided with a terminal assembly, which is connected to the power line. One end of the first gas supply pipe is disposed close to the terminal assembly, and one end of the second gas supply pipe is connected to the sealed cavity.

[0007] In one embodiment, the housing includes a gun head and a gun body, and the sealed cavity includes a first cavity disposed in the gun head and a second cavity disposed in the gun body. The first cavity and the second cavity are connected, the first gas supply pipe is connected to the first cavity, and the second gas supply pipe is connected to the second cavity.

[0008] In one embodiment, the power line and the first gas supply pipe are covered with heat shrink tubing to securely install the power line and the first gas supply pipe; the ground line and the second gas supply pipe are covered with heat shrink tubing to securely install the ground line and the second gas supply pipe.

[0009] In one embodiment, the charging gun further includes an air supply device for supplying cooling medium into the sealed cavity, wherein the end of the first air supply pipe away from the housing is connected to the air supply device to deliver the cooling medium from the air supply device into the sealed cavity.

[0010] In one embodiment, the air supply device includes an air pump that provides a power source for the cooling medium to be introduced into the sealed cavity along the first air supply pipe.

[0011] In one embodiment, the terminal assembly has a plurality of power terminals connected to the power line, and the power terminals are provided with temperature sensors for acquiring temperature data.

[0012] In one embodiment, the air supply device further includes a control device for dynamically adjusting the input amount of cooling medium, the control device being connected to the temperature sensor and also connected to the air pump.

[0013] In one embodiment, the end of the second gas supply pipe away from the housing is connected to a one-way valve for controlling the flow of cooling medium from the inside of the charging gun to the outside, so that the cooling medium flows out of the charging gun from the sealed cavity through the second gas supply pipe.

[0014] In one embodiment, there are two first gas supply pipes and one second gas supply pipe. The cable contains two power lines and one ground line. The terminal assembly has two power terminals and one ground terminal. The two power lines are respectively fastened to the two first gas supply pipes by heat shrink tubing, and the ground line is fastened to the second gas supply pipe by heat shrink tubing. One end of the first gas supply pipe is positioned close to the power terminal.

[0015] In one embodiment, the cross-sectional area of ​​the first gas pipe is smaller than that of the second gas pipe.

[0016] The charging gun of this utility model includes a housing and a sealed cavity within the housing. A cable is threaded through the sealed cavity. The cable contains multiple power lines, a ground wire, a second air supply pipe for conveying cooling medium, and multiple first air supply pipes. Each power line is tightly attached to at least one first air supply pipe. The ground wire is tightly attached to the second air supply pipe. The cable contains a filler to seal its interior. A terminal assembly is located within the sealed cavity, connected to the power lines. One end of the first air supply pipe is positioned close to the terminal assembly, and one end of the second air supply pipe communicates with the sealed cavity. The cooling medium exchanges heat with the terminal assembly within the sealed cavity, effectively cooling the terminal assembly. The multiple cooling pipes within the cable effectively improve the cooling efficiency during the charging gun's operation, extending product lifespan. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 the structures shown in these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the composition of an embodiment of the charging gun of this utility model;

[0019] Figure 2 This is a three-dimensional structural diagram of an embodiment of the charging gun of this utility model;

[0020] Figure 3 This is an exploded view of an embodiment of the charging gun of this utility model;

[0021] Figure 4 This is a schematic diagram of the cable cross-section structure of an embodiment of the charging gun of this utility model;

[0022] Figure 5 This is a top view of an embodiment of the charging gun of this utility model;

[0023] Figure 6 yes Figure 5 A sectional view along line AA.

[0024] Figure 7 yes Figure 6 A magnified view of section I in the middle.

[0025] Explanation of icon numbers:

[0026] label name label name label name 1 Cable 14 one-way valve 23 Other terminals 11 Power line 15 filler 24 Temperature sensor 12 Cooling pipes 16 Other wiring harnesses 3 Gun head cover 12a First gas pipeline 2 Terminal assembly 4 Gun head casing 12b Second gas supply pipe 21 Power terminals 5 air pump 13 ground wire 22 Grounding terminal

[0027] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0028] 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.

[0029] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the word "and / or" throughout the text means including three parallel solutions; taking "A and / or B" as an example, it includes solution A, solution B, or a solution that simultaneously satisfies A and B. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] With the rapid development of the new energy vehicle industry, the market share of electric vehicles is constantly increasing, and users' requirements for charging efficiency are also generally rising. While high-power charging equipment can effectively improve charging efficiency, it also brings the safety hazard of excessive temperature rise at the charging terminals. Excessive temperature will reduce the lifespan of the charging equipment, and relying on natural heat dissipation is unlikely to effectively cool the heat-generating areas.

[0033] This utility model proposes a charging gun. Please refer to... Figures 1 to 7The charging gun includes a housing and a sealed cavity within the housing; a cable 1 is threaded through the sealed cavity, and the cable 1 contains multiple power lines 11, a ground line 13, a second air supply pipe 12b for conveying cooling medium, and multiple first air supply pipes 12a; each power line 11 is closely attached to at least one first air supply pipe 12a; the ground line 13 is closely attached to the second air supply pipe 12b; the cable 1 contains a filler 15 to seal the inside of the cable 1; a terminal assembly 2 is provided in the sealed cavity, the terminal assembly 2 is connected to the power lines 11, one end of the first air supply pipe 12a is close to the terminal assembly 2, and one end of the second air supply pipe 12b is connected to the sealed cavity.

[0034] In this embodiment, the cable 1 is provided with multiple cooling pipes 12, which communicate with the sealed cavity and are used for the input or output of the cooling medium. It is understood that at least one cooling pipe 12 is used for the input of the cooling medium, and at least one cooling pipe 12 is also used for the output of the cooling medium. Preferably, when the number of cooling pipes 12 used for input is greater than the number of cooling pipes 12 used for output, the diameter of the cooling pipes 12 used for output can be increased, that is, the cross-sectional area of ​​the cooling pipes 12 used for output should be larger than the cross-sectional area of ​​the cooling pipes 12 used for input, to ensure that the cooling medium can flow smoothly when the charging gun is in use. The cooling pipes 12 include multiple first gas supply pipes 12a and at least one second gas supply pipe 12b. The cooling medium can be a gaseous fluid. Understandably, the first gas supply pipe can be used for the input of the cooling medium, and the second gas supply pipe can be used for the output of the cooling medium. In this case, the cooling medium can be input into the sealed cavity through the first gas supply pipe and then output from the sealed cavity through the second gas supply pipe. Of course, the second gas supply pipe can also be used for the input of the cooling medium, and the first gas supply pipe can be used for the output of the cooling medium. In this case, the cooling medium can be input into the sealed cavity through the second gas supply pipe and then output from the sealed cavity through the first gas supply pipe. No limitation is made here. A terminal assembly 2 is provided inside the sealed cavity. The cooling medium can flow inside the sealed cavity and exchange heat with the terminal assembly 2 inside the sealed cavity to cool the terminal assembly 2. Then, it is discharged from the charging gun through the cooling pipe 12 used for output. The cable 1 is provided with a ground wire 13 and multiple power wires 11. The power wires 11 are connected to the terminal assembly 2 inside the housing. Each power wire 11 is closely attached to at least one first gas supply pipe 12a, and the ground wire 13 is closely attached to the second gas supply pipe 12b. The end of the first gas supply pipe 12a located inside the sealed cavity can be as close as possible to the terminal assembly 2. Preferably, the first air supply pipe 12a is used for the input of the cooling medium, and the second air supply pipe 12b is used for the output of the cooling medium. The cooling medium is input into the sealed cavity near the terminal assembly 2 via the first air supply pipe 12a. The cooling medium cools the exterior of the terminal assembly 2, the connection between the terminal assembly 2 and the power line 11, and the connection between the terminal assembly 2 and the ground line 13. The cooling medium is then transported to the outside of the charging gun via the second air supply pipe 12b. The cable 1 also has a filler 15 made of polypropylene. The filler 15 fills the interior of the cable 1, giving the cable 1 an internal sealed structure, ensuring that the cooling medium can only be input to or output to the charging gun along the cooling pipe 12.

[0035] Further, please refer to Figure 6 and Figure 7 The housing includes a gun head and a gun body. The sealed cavity includes a first cavity in the gun head and a second cavity in the gun body. The first cavity and the second cavity are connected. The first gas supply pipe 12a is connected to the first cavity. The second gas supply pipe 12b is connected to the second cavity.

[0036] Specifically, the gun head is located at the front end of the gun body, and a gun head sealing ring is provided between the gun head and the gun body to ensure the sealing between the gun head and the gun body. The gun head includes a gun head housing 4, which has a mounting cavity. A gun head rear cover 3 is located in the mounting cavity. The gun head rear cover 3 has multiple mounting slots, in which the terminal assembly 2 is inserted to fix and prevent displacement of the terminal assembly 2 during use of the charging gun. The gun head has a first cavity, and the terminal assembly 2 is located in the first cavity. The gun body has a second cavity, in which the cable 1 passes. The first cavity and the second cavity are connected, allowing the flow of cooling medium. A first air supply pipe 12a is set close to the power line 11. The first air supply pipe 12a and the power line 11, both located in the sealed cavity, are inserted into the gun head rear cover 3 and extend into the first cavity, allowing the first air supply pipe 12a to flow into the first cavity. The second air supply pipe 12b communicates with the second cavity, and its end near the nozzle can be located in either the first cavity or the second cavity. Preferably, the end of the second air supply pipe 12b near the nozzle is located in the second cavity. In this embodiment, the first air supply pipe 12a is used to input the cooling medium, and the second air supply pipe 12b is used to output the cooling medium. When the cooling medium flows into the sealed cavity from the first air supply pipe 12a, it enters the first cavity near the terminal assembly 2, rapidly cooling the terminal assembly 2. At this time, the air pressure in the first cavity increases, and under the action of air pressure, the cooling medium is squeezed from the first cavity into the second cavity, and flows through the second air supply pipe 12b to the outside of the charging gun. This structural arrangement allows the cooling medium to be fully cooled before being discharged from the cooling pipe 12, improving the cooling effect of the charging gun.

[0037] In another embodiment, the end of the second gas supply pipe 12b near the nozzle is located within the first cavity. It can be understood that in this case, the ends of both the first gas supply pipe 12a and the second gas supply pipe 12b near the nozzle are located within the first cavity. The first gas supply pipe 12a can be used to input the cooling medium, and the second gas supply pipe 12b can be used to output the cooling medium, or vice versa.

[0038] Further, please refer to Figure 2 and Figure 3 The power line 11 and the first gas supply pipe 12a are covered with heat shrink tubing, and the power line 11 and the first gas supply pipe 12a are fastened together. The ground line 13 and the second gas supply pipe 12b are covered with heat shrink tubing, and the ground line 13 and the second gas supply pipe 12b are fastened together.

[0039] Specifically, during the use of the charging gun, if the cooling pipe 12 is not fixed, the end of the cooling pipe 12 near the gun head will swing, causing a positional shift and preventing effective heat dissipation of the terminal assembly 2. Therefore, it is necessary to provide a covering around the power line 11 and the first gas supply pipe 12a, and the ground line 13 and the second gas supply pipe 12b, so that the positions of the power line 11 and the first gas supply pipe 12a, and the ground line 13 and the second gas supply pipe 12b are relatively fixed, preventing the cooling pipe 12 from swinging during use. Preferably, the covering can be heat shrink tubing. The heat shrink tubing provides a guarantee for the fixed installation of the power line 11 and the first gas supply pipe 12a, and the ground line 13 and the second gas supply pipe 12b, ensuring that the cooling pipe 12 will not swing or shift during the use of the charging gun, ensuring that the cooling medium can be stably delivered and effectively cooling the terminal assembly 2.

[0040] Furthermore, the charging gun also includes an air supply device for supplying cooling medium into the sealed cavity. The end of the first air supply pipe 12a away from the housing is connected to the air supply device (not shown in the figure) to deliver the cooling medium from the air supply device into the sealed cavity.

[0041] Specifically, the air supply device provides a cooling medium for cooling the charging gun, continuously supplying the cooling medium into the sealed cavity. One end of the cooling pipe 12, used for inputting the cooling medium, is located near the terminal assembly 2, and the other end is connected to the air supply device. The cooling medium flows out from the air supply device, enters the first cavity via the cooling pipe 12, and cools the exterior of the terminal assembly 2. In this embodiment, the first air supply pipe 12a is used for inputting the cooling medium. The end of the first air supply pipe 12a away from the housing is connected to the air supply device, and the end located inside the housing is located near the terminal assembly 2.

[0042] This utility model provides an embodiment, please refer to it. Figure 1 The air supply device includes an air pump 5, which provides a power source for the cooling medium to enter the sealed cavity along the first air supply pipe 12a.

[0043] Specifically, the air supply device includes an air pump 5. External air enters the air supply device, and the air pump 5 compresses the external air and sends it into the cooling pipe 12. In this embodiment, the cooling medium can be air. The first air supply pipe 12a is used to input the cooling medium, and the second air supply pipe 12b is used to output the cooling medium. External air is compressed by the air pump 5 and enters the charging gun. It is then input into the sealed cavity through the first air supply pipe 12a. During the use of the charging gun, the terminal assembly 2 will continuously generate heat. The cooling medium is introduced into the first cavity to exchange heat with the outside of the terminal assembly 2, reducing the temperature of the terminal assembly 2. The air after heat exchange is then discharged through the second air supply pipe 12b. The air pump 5 provides the power source for the flow of the cooling medium. Driven by the air pump 5, the cooling medium is continuously delivered to the first cavity to cool the terminal assembly 2 before being discharged from the charging gun.

[0044] Further, please refer to Figure 3 The terminal assembly 2 has multiple power terminals 21, which are connected to the power line 11. The power terminals 21 are equipped with temperature sensors 24 for collecting temperature data.

[0045] Specifically, the power terminal 21 is connected to the power line 11, preferably by crimping or ultrasonic welding. A temperature sensor 24 is provided on the power terminal 21. Preferably, the temperature sensor 24 is located at the end of the power terminal 21 near the first gas supply pipe 12a, and is used to collect the temperature of the power terminal 21 for real-time temperature monitoring during the operation of the charging gun.

[0046] Further, please refer to Figure 1 The air supply device also includes a control device (not shown in the figure) for dynamically adjusting the amount of cooling medium input. The control device is connected to the temperature sensor 24 and also to the air pump 5.

[0047] Specifically, the air supply device also includes a control device, which is connected to the temperature sensor 24. During the use of the charging gun, the temperature sensor 24 collects the temperature of the power terminal 21 and sends the temperature signal to the control device. The temperature of the power terminal 21 needs to be controlled within the standard requirement range. The control device is also connected to the air pump 5. After receiving the temperature signal, the control device sends a control signal to the air pump 5 to dynamically adjust the airflow of the cooling medium output by the air pump 5. Understandably, if the temperature detected by the temperature sensor 24 is too high and exceeds the standard requirement range, the control device receives temperature feedback from inside the charging gun and releases a control signal to the air pump 5 to increase the airflow. The increased airflow can accelerate the cooling of the power terminal 21, restoring the temperature of the power terminal 21 to the standard requirement range. The temperature sensor 24 collects the temperature change of the power terminal 21 in real time and feeds back the adjusted temperature value to the control device. After receiving the temperature value feedback, the control device continues to release a control signal to the air pump 5 to adjust the output airflow of the air pump 5, realizing automatic feedback control of temperature and airflow. Preferably, the control device is also connected to a monitoring device for detecting ambient temperature. When the ambient temperature is too high, the control system will also release a control signal to increase the output airflow of the air pump 5. Through the cooperation of the temperature sensor 24, the control device, and the monitoring device, dynamic temperature adjustment of the charging gun can be achieved under different temperature environments, ensuring heat dissipation, increasing the applicability of the product, and improving the user experience.

[0048] Further, please refer to Figures 1 to 3The end of the second gas supply pipe 12b away from the housing is connected to a one-way valve 14 for controlling the flow of cooling medium from the inside of the charging gun to the outside, so that the cooling medium flows out of the charging gun from the sealed cavity through the second gas supply pipe 12b.

[0049] Specifically, one end of the cooling pipe 12, used for outputting the cooling medium, is connected to the sealed cavity, and the other end is connected to a one-way valve 14. The one-way valve 14 controls the flow direction of the cooling medium, ensuring that the cooling medium can only flow from inside the charging gun to the outside. After the cooling medium completes heat exchange with the terminal assembly 2, the cooling medium flows out in one direction. In this embodiment, the second gas supply pipe 12b is used to output the cooling medium. The end of the second gas supply pipe 12b away from the housing is connected to the one-way valve 14, and the other end of the second gas supply pipe 12b is connected to the sealed cavity.

[0050] This utility model provides an embodiment, please refer to it. Figures 1 to 7 There are two first gas supply pipes 12a and one second gas supply pipe 12b. The cable 1 has two power lines 11 and one ground line 13. The terminal assembly 2 has two power terminals 21 and one ground terminal 22. The two power lines 11 are respectively fastened to the two first gas supply pipes 12a by heat shrink tubing, and the ground line 13 is fastened to the second gas supply pipe 12b by heat shrink tubing. One end of the first gas supply pipe 12a is set close to the power terminal 21.

[0051] In this embodiment, cable 1 includes two power lines 11, a ground line 13, and other wire harnesses 16. The gaps inside cable 1 are filled with filler 15, giving cable 1 an internal sealed structure. Terminal assembly 2 includes two power terminals 21, a ground terminal 22, and other terminals 23. The two power terminals 21 are respectively connected to the two power lines 11, which can be achieved by crimping or ultrasonic welding. The ground terminal 22 is connected to the ground line 13, and the other wire harnesses 16 are connected to the other terminals 23. Cooling pipe 12 includes two first air supply pipes 12a and one second air supply pipe 12b. The two first air supply pipes 12a are respectively disposed in close contact with the two power lines 11. The first air supply pipes 12a and the closely disposed power lines 11 are covered with heat-shrink tubing, allowing the first air supply pipes 12a to maintain continuous contact with the outer circumferential surface of the power lines 11, fixing the position of the first air supply pipes 12a, and preventing displacement of the first air supply pipes 12a during the operation of the charging gun, which would affect the cooling effect. The first air supply pipe 12a is positioned near the power terminal 21 at one end, ensuring effective cooling of the outer surface of the power terminal 21 and the connection between the power terminal 21 and the power line 11. The second air supply pipe 12b is positioned close to the ground wire 13 and is covered with heat shrink tubing, ensuring continuous contact between the second air supply pipe 12b and the outer circumference of the ground wire 13. This fixes the position of the second air supply pipe 12b and prevents it from shifting during the operation of the charging gun, which would affect the cooling effect.

[0052] Further, please refer to Figures 1 to 7 The cross-sectional area of ​​the first gas pipe 12a is smaller than that of the second gas pipe 12b.

[0053] Specifically, the first air supply pipe 12a is used to transport the cooling medium from the outside to the sealed cavity. The end of the first air supply pipe 12a away from the housing is connected to an air supply device, which has an air pump 5. The air pump 5 pumps the compressed cooling medium from the air supply device into the first cavity through the first air supply pipe 12a. During the use of the charging gun, the terminal assembly 2 continuously generates heat. The cooling medium is transported along the first air supply pipe 12a to a position near the power terminal 21, where it exchanges heat with the outside of the terminal assembly 2. The flow of the cooling medium carries away the surface temperature of the terminal assembly 2, and at the same time, it cools the connection between the power terminal 21 and the power line 11, the connection between the ground terminal 22 and the ground line 13, and the connection between other terminals 23 and other wire harnesses 16. The second air supply pipe 12b is used to transport the cooling medium from the sealed cavity to the outside of the charging gun. The end of the second air supply pipe 12b away from the housing is connected to a one-way valve 14. The one-way valve 14 controls the flow direction of the cooling medium, so that the cooling medium can only flow from the inside of the charging gun to the outside. The second air supply pipe 12b, located inside the housing, communicates with the sealed cavity at one end. Cooling medium enters the sealed cavity along the first air supply pipe 12a, carrying away the heat generated by the terminal assembly 2, and then flows out through the second air supply pipe 12b. In this embodiment, the cable 1 has two first air supply pipes 12a for inputting cooling medium and one second air supply pipe 12b for outputting cooling medium. It is understood that the cross-sectional area of ​​the first air supply pipe 12a is smaller than that of the second air supply pipe 12b to ensure smooth flow of cooling medium during charging gun use and to balance the input and output flow rates of the cooling medium. Furthermore, the power terminal 21 has a temperature sensor 24 for collecting the temperature of the power terminal 21. An air supply device is connected to the end of the first air supply pipe 12a away from the power terminal 21. The air supply device also includes a control device, which is connected to the temperature sensor 24. During the use of the charging gun, the temperature sensor 24 collects the temperature of the power terminal 21 and sends the temperature signal to the control device. The temperature of the power terminal 21 needs to be controlled within the standard requirement range. After receiving the temperature signal, the control device sends a control signal to the air pump 5 to dynamically adjust the airflow of the cooling medium into the first air supply pipe 12a. Understandably, if the temperature detected by the temperature sensor 24 is too high and exceeds the standard requirement range, the control device receives temperature feedback from inside the charging gun and releases a control signal to the air pump 5 to increase the airflow into the first air supply pipe 12a. The increased airflow increases the flow of the cooling medium delivered from the first air supply pipe 12a to the first cavity, which can accelerate the cooling of the power terminal 21 and restore the temperature of the power terminal 21 to the standard requirement range. The cooling medium flows in the sealed cavity and then flows out through the second air supply pipe 12b to cool the terminal assembly 2.Temperature sensor 24 collects the temperature change of power terminal 21 in real time and feeds back the adjusted temperature value to the control device. After receiving the temperature value feedback, the control device continues to release control signals to air pump 5 to adjust the output airflow of air pump 5, thereby realizing automatic feedback control of temperature and airflow, ensuring heat dissipation effect, increasing the applicability of the product, and improving user experience.

[0054] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. A charging gun, characterized in that, Includes a housing and a sealed cavity located within the housing; A cable (1) is threaded through the sealed cavity. The cable (1) contains multiple power lines (11), a ground line (13), a second gas supply pipe (12b) for conveying cooling medium, and multiple first gas supply pipes (12a). Each power line (11) is closely attached to at least one first gas supply pipe (12a). The ground line (13) is closely attached to the second gas supply pipe (12b). The cable (1) contains a filler (15) to seal the inside of the cable (1). The sealed cavity is provided with a terminal assembly (2), which is connected to the power line (11). One end of the first gas supply pipe (12a) is set close to the terminal assembly (2), and one end of the second gas supply pipe (12b) is connected to the sealed cavity.

2. The charging gun as described in claim 1, characterized in that, The housing includes a gun head and a gun body. The sealed cavity includes a first cavity in the gun head and a second cavity in the gun body. The first cavity and the second cavity are connected. The first gas supply pipe (12a) is connected to the first cavity. The second gas supply pipe (12b) is connected to the second cavity.

3. The charging gun as described in claim 1, characterized in that, The power line (11) and the first gas supply pipe (12a) are covered with heat shrink tubing, and the power line (11) and the first gas supply pipe (12a) are fastened together. The ground wire (13) and the second gas supply pipe (12b) are covered with heat shrink tubing, and the ground wire (13) and the second gas supply pipe (12b) are fastened together.

4. The charging gun as described in claim 1, characterized in that, The charging gun also includes an air supply device for supplying cooling medium into the sealed cavity. The end of the first air supply pipe (12a) away from the housing is connected to the air supply device to deliver the cooling medium from the air supply device into the sealed cavity.

5. The charging gun as described in claim 4, characterized in that, The air supply device includes an air pump (5), which provides a power source for the cooling medium to be introduced into the sealed cavity along the first air supply pipe (12a).

6. The charging gun as described in claim 5, characterized in that, The terminal assembly (2) has multiple power terminals (21), which are connected to the power line (11). The power terminals (21) are provided with a temperature sensor (24) for collecting temperature data.

7. The charging gun as described in claim 6, characterized in that, The air supply device also includes a control device for dynamically adjusting the input amount of cooling medium. The control device is connected to the temperature sensor (24) and is also connected to the air pump (5).

8. The charging gun as described in claim 4, characterized in that, The end of the second gas supply pipe (12b) away from the housing is connected to a one-way valve (14) for controlling the flow of cooling medium from the inside of the charging gun to the outside, so that the cooling medium flows out of the charging gun from the sealed cavity through the second gas supply pipe (12b).

9. The charging gun according to any one of claims 1-8, characterized in that, There are two first gas supply pipes (12a) and one second gas supply pipe (12b). The cable (1) has two power lines (11) and one ground line (13). The terminal assembly (2) has two power terminals (21) and one ground terminal (22). The two power lines (11) are respectively fastened to the two first gas supply pipes (12a) by heat shrink tubing. The ground line (13) is fastened to the second gas supply pipe (12b) by heat shrink tubing. One end of the first gas supply pipe (12a) is set close to the power terminal (21).

10. The charging gun as described in claim 9, characterized in that, The cross-sectional area of ​​the first gas pipe (12a) is smaller than that of the second gas pipe (12b).

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