Cooling terminal and charging gun

Abstract

The utility model discloses a cooling terminal and a charging gun. The cooling terminal comprises a plug connector, a first accommodating cavity is formed in the plug connector, a first connecting part and a second connecting part which are communicated with the first accommodating cavity are arranged on the plug connector, the first connecting part is communicated with the first cooling pipe, and the second connecting part is communicated with the second cooling pipe; the plug connector is further provided with a temperature measuring hole, the temperature measuring hole, the first connecting part and the second connecting part are arranged at intervals, and a temperature sensor is arranged in the temperature measuring hole. The cooling terminal provided by the utility model can directly detect the temperature of the plug connector, and improves the measurement precision and speed.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging, and in particular to a cooling terminal and a charging gun. Background Technology

[0002] With the continuous development of the electric vehicle market, safe and efficient high-power charging guns have received increasing attention. During use, some electrical energy in a high-power charging gun is converted into heat, causing the charging gun's temperature to rise. This overheating is particularly severe at the terminal connectors and the points where terminals are crimped with wires, posing a safety risk. Therefore, accurately and quickly detecting terminal temperature and improving the heat dissipation efficiency of high-power charging gun pins are urgent problems that need to be solved. Utility Model Content

[0003] The main objective of this invention is to provide a cooling terminal, including a connector. The connector has a first cavity, and the connector has a first connecting part and a second connecting part communicating with the first cavity. The first connecting part is connected to a first cooling pipe, and the second connecting part is connected to a second cooling pipe. The connector also has a temperature measuring hole, which is spaced apart from the first connecting part and the second connecting part. A temperature sensor is provided inside the temperature measuring hole.

[0004] Optionally, in one embodiment of the present invention, the connector includes a plug-in portion and a base adjacent to the plug-in portion, the first connecting portion and the second connecting portion are disposed on the side of the base away from the plug-in portion, the first connecting portion and the plug-in portion are coaxially disposed; the first cavity extends from the first connecting portion to the plug-in portion; the second connecting portion and the first connecting portion are spaced apart, and the second connecting portion and the first cavity are connected by a connecting hole; the temperature measuring hole is disposed on the side of the base away from the plug-in portion.

[0005] Optionally, in one embodiment of the present invention, the cooling terminal further includes an inner core, the inner core having a wiring portion and a flow guiding portion, the flow guiding portion having a second cavity, and the flow guiding portion having a flow guiding hole. When the inner core is inserted into the first cavity, the first cooling pipe, the flow guiding hole, the second cavity, the first cavity, and the first cooling pipe are connected.

[0006] Optionally, in one embodiment of the present invention, the flow guiding part includes a first flow guiding member, a limiting part, and a second flow guiding member. The first flow guiding member is connected to the wiring part, and the limiting part is located between the first flow guiding member and the second flow guiding member. The limiting part is connected to the cavity wall of the first cavity, and both the first flow guiding member and the second flow guiding member are provided with flow guiding holes.

[0007] Optionally, in one embodiment of the present invention, the first connecting part is a sleeve, the outer wall of the sleeve is provided with a plurality of spaced flanges, and the first cooling pipe is sleeved and connected to the outer wall of the sleeve so that the flanges and the first cooling pipe are in close contact.

[0008] Optionally, in one embodiment of the present invention, the second connecting part is a threaded hole opened on the base, and the cooling terminal further includes an adapter tube. One end of the adapter tube is provided with a threaded part, which is connected to the threaded hole. The other end of the adapter tube is provided with an adapter, and the second cooling tube is sleeved on the outer wall of the adapter.

[0009] Optionally, in one embodiment of the present invention, an abutment portion is further provided between the screw portion and the adapter, the abutment portion abuts against the base, and the side of the abutment portion facing the first connecting portion is provided with a groove around the screw portion, and a sealing ring is provided in the groove.

[0010] Optionally, in one embodiment of the present invention, the outer wall of the adapter is provided with a plurality of flanges at intervals.

[0011] Optionally, in one embodiment of the present invention, the cooling terminal further includes a fastener, the fastener being sleeved on the outer peripheral surface of the first cooling pipe to lock and fix the first cooling pipe and the first connecting portion, and / or, the fastener being sleeved on the outer peripheral surface of the second cooling pipe to lock and fix the second cooling pipe and the adapter; and / or,

[0012] The base is also provided with a connecting hole that communicates with the connecting hole and a sealing element for opening or closing the connecting hole.

[0013] This utility model also provides a charging gun, including the aforementioned cooling terminal.

[0014] This utility model's cooling terminal features a first cavity within the cooling terminal connector, connected to a first cooling pipe and a second cooling pipe via a first connecting portion and a second connecting portion, respectively. This allows cooling medium to flow into the first cavity through either the first or second cooling pipe, thereby cooling the connector. A temperature sensing hole is provided on the connector, spaced apart from the first and second connecting portions. A temperature sensor is installed within the temperature sensing hole, positioned near the first and second connecting portions. This allows the temperature sensor to immediately detect the temperature of the cooling medium in the first and second connecting portions, as well as the overall temperature of the connector. This ensures the cooling terminal can directly detect the connector temperature, improving measurement accuracy and speed. Attached Figure Description

[0015] 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.

[0016] Figure 1 This is a schematic diagram of the structure of an embodiment of the cooling terminal of this utility model;

[0017] Figure 2 This is an exploded structural diagram of an embodiment of the cooling terminal of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of one embodiment of the inner core of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of an embodiment of the transfer tube of this utility model;

[0020] Figure 5 This is a top view of an embodiment of the cooling terminal of this utility model;

[0021] Figure 6 for Figure 5 Cross-sectional view along point AA;

[0022] Figure 7 for Figure 5 Cross-sectional view along BB.

[0023] Explanation of icon numbers:

[0024] 100. Cooling terminal; 10. Connector; 11. First cavity; 12. First connecting part; 13. Second connecting part; 14. Connector; 15. Base; 151. Temperature measuring hole; 152. Connecting hole; 153. Connecting hole; 16. Temperature sensor; 17. Adapter pipe; 171. Screw connection; 172. Adapter; 173. Abutment part; 18. Fastener; 19. Flange; 20. Inner core; 21. Wiring part; 22. Flow guide part; 221. Second cavity; 222. First flow guide; 223. Second flow guide; 224. Limiting part; 23. Flow guide hole; 24. Sealing part; 30. First cooling pipe; 40. Second cooling pipe; 50. First flow channel; 60. Second flow channel.

[0025] 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

[0026] 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.

[0027] 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.

[0028] Furthermore, the use of terms such as "first" and "second" in this utility model is 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, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person 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.

[0029] With the continuous development of the electric vehicle market, safe and efficient high-power charging guns have received increasing attention. During use, some electrical energy in a high-power charging gun is converted into heat, causing the charging gun's temperature to rise. This overheating is particularly severe at the terminal connectors and the points where terminals are crimped with wires, posing a safety risk. Therefore, accurately and quickly detecting terminal temperature and improving the heat dissipation efficiency of high-power charging gun pins are urgent problems that need to be solved.

[0030] In view of this, the cooling terminal 100 of this utility model provides a first cavity 11 within the connector 10, and communicates with the first cooling pipe 30 and the second cooling pipe 40 respectively through the first connecting part 12 and the second connecting part 13, so that the cooling medium can flow into the first cavity 11 through the first cooling pipe 30 or the second cooling pipe 40 to cool the connector 10. By providing a temperature measuring hole 151 on the connector 10, the temperature measuring hole 151 is spaced apart from the first connecting part 12 and the second connecting part 13, and a temperature sensor 16 is provided in the temperature measuring hole 151, so that the temperature measuring hole 151 is located near the first connecting part 12 and the second connecting part 13, the temperature sensor 16 in the temperature measuring hole 151 can sense the temperature of the cooling medium in the first connecting part 12 and the second connecting part 13, as well as the temperature of the entire connector 10, thereby ensuring that the cooling terminal 100 can directly detect the temperature of the connector 10, improving the measurement accuracy and speed.

[0031] To better understand the above technical solution, a detailed explanation of the technical solution is provided below with reference to the accompanying drawings.

[0032] like Figure 1-7 As shown, the cooling terminal 100 includes a connector 10, which has a first cavity 11. The connector 10 has a first connecting part 12 and a second connecting part 13 communicating with the first cavity 11. The first connecting part 12 communicates with the first cooling pipe 30, and the second connecting part 13 communicates with the second cooling pipe 40. The connector 10 also has a temperature measuring hole 151, which is spaced apart from the first connecting part 12 and the second connecting part 13. A temperature sensor 16 is provided in the temperature measuring hole 151.

[0033] Understandably, new energy vehicles are equipped with charging sockets. The charging gun contains a cooling terminal 100, one end of which can be plugged into the charging socket. The other end of the cooling terminal 100 is electrically connected to the power supply device in the charging pile via a cable, thereby transferring electrical energy from the charging gun to the charging socket, where the battery in the new energy vehicle can store the energy. The cooling terminal 100 includes a connector 10 for plugging into the charging socket. The connector 10 has a first cavity 11 and a first connecting portion 12 and a second connecting portion 13 communicating with the first cavity 11. The first connecting portion 12 and the second connecting portion 13 are respectively connected to a first cooling pipe 30 and a second cooling pipe 40, the other ends of which are connected to a cooling device. With this configuration, the cooling medium can enter the first connecting part 12 through the first cooling pipe 30 and then into the first cavity 11, absorbing heat from the plug-in part 14. The heated cooling medium flows out from the second connecting part 13 into the second cooling pipe 40 and then into the cooling device for the next cycle. Alternatively, the cooling medium can enter the second connecting part 13 through the second cooling pipe 40 and then into the first cavity 11, absorbing heat from the plug-in part 14. The heated cooling medium flows out from the first connecting part 12 into the first cooling pipe 30 and then into the cooling device for the next cycle. To obtain the heat of the cooling terminal 100 in real time and to better monitor the temperature of the cooling terminal 100, the plug-in part 10 is also provided with a temperature measuring hole 151, which is spaced apart from the first connecting part 12 and the second connecting part 13. A temperature sensor 16 is provided in the temperature measuring hole 151. By providing a temperature sensing hole 151 between the first connecting part 12 and the second connecting part 13, and installing a temperature sensor 16 inside the temperature sensing hole 151, the temperature sensing hole 151 is positioned adjacent to the first connecting part 12 and the second connecting part 13. The temperature sensor 16 inside the temperature sensing hole 151 can immediately sense the temperature of the cooling medium in the first connecting part 12 and the second connecting part 13, as well as the temperature of the entire connector 10. This ensures that the cooling terminal 100 can directly detect the temperature of the connector 10, improving measurement accuracy and speed. The temperature sensor 16 can transmit the temperature signal via wired or wireless means, which is not limited here.

[0034] Furthermore, in one embodiment of the present invention, the connector 10 includes a connector portion 14 and a base 15 adjacent to the connector portion 14. A first connecting portion 12 and a second connecting portion 13 are disposed on the side of the base 15 away from the connector portion 14. The first connecting portion 12 is coaxially disposed with the connector portion 14. A first cavity 11 extends from the first connecting portion 12 toward the connector portion 14. The second connecting portion 13 and the first connecting portion 12 are spaced apart and are connected to each other through a connecting hole 152. A temperature measuring hole 151 is disposed on the side of the base 15 away from the connector portion 14.

[0035] Understandably, the plug-in portion 14 is used to connect with the charging socket, thereby transferring electrical energy from the cooling terminal 100 to the charging socket. The base 15 is disposed adjacent to the plug-in portion 14. The first cavity 11 extends from the first connecting portion 12 towards the plug-in portion 14, so that the cooling medium can reach the interior of the plug-in portion 14 to directly cool the plug-in portion 14. The first connecting portion 12 and the second connecting portion 13 are disposed on the side of the base 15 away from the plug-in portion 14, so that the arrangement of the first connecting portion 12, the second connecting portion 13, the first cooling pipe 30, and the second cooling pipe 40 will not interfere with the connection of the charging gun and the charging socket, and at the same time facilitate the installation of the cooling terminal 100. The temperature measuring hole 151 is disposed on the base 15 and spaced apart from the entire first cavity 11, the second connecting portion 13, and the connecting hole 152, thereby facilitating the temperature sensor 16 to quickly and accurately obtain the temperature of the plug-in 10.

[0036] Furthermore, in one embodiment of the present invention, the cooling terminal 100 further includes an inner core 20, which is provided with a wiring portion 21 and a flow guiding portion 22. The flow guiding portion 22 is provided with a second cavity 221 and a flow guiding hole 23. When the inner core 20 is inserted into the first cavity 11, the first cooling pipe 30, the flow guiding hole 23, the second cavity 221, the first cavity 11 and the first cooling pipe 30 are connected.

[0037] Understandably, the connector 21 can connect to a cable to transmit electrical energy from the cable to the inner core 20, and then from the inner core 20 to the connector 10. The connector 21 can be connected to the cable in various ways. For example, the connector 21 can be a connector plate, and the cable can be connected to the connector plate by soldering it. Alternatively, the connector 21 can be cylindrical, in which case the cable can be connected to the connector 21 by crimping. The connector 21 can be housed within the first connecting portion 12, in which case a first flow channel 50 is formed between the connector 21 and the inner wall of the first connecting portion 12; or the connector 21 can also be housed within the first cooling pipe 30, in which case a first flow channel 50 is formed between the connector 21 and the wall of the first cooling pipe 30. Taking the example of cooling medium flowing from the first cooling pipe 30 into the first cavity 11, the cooling medium will flow through the connector 21 from the first flow channel 50, thereby cooling the connector 21. By providing a second cavity 221 in the flow guide 22, and a flow guide hole 23 on the flow guide 22, the flow guide hole 23 is connected to the first cavity 11 and the second cavity 221. With this configuration, the cooling medium flowing through the first flow channel 50 enters the second cavity 221 through the flow guide hole 23, improving the flow path of the cooling medium and achieving the effect of immersing the wiring portion 21 and flowing through the plug portion 14. The improved cooling circuit has a stronger cooling effect, significantly reducing the risk of temperature rise during the use of the high-power charging gun. The flow direction of the cooling medium flowing from the second cooling pipe 40 into the first cooling pipe 30 is opposite to that flowing from the first cooling pipe 30 into the second cooling pipe 40, but the technical effect is the same, and will not be elaborated further here.

[0038] Furthermore, in one embodiment of the present invention, the flow guiding part 22 includes a first flow guiding member 222, a limiting part 224, and a second flow guiding member 223. The first flow guiding member 222 is connected to the wiring part 21, and the limiting part 224 is located between the first flow guiding member 222 and the second flow guiding member 223. The limiting part 224 is connected to the cavity wall of the first cavity 11, and both the first flow guiding member 222 and the second flow guiding member 223 are provided with flow guiding holes 23.

[0039] Understandably, the diameter of the limiting part 224 matches the wall of the first cavity 11, so that the limiting part 224 can connect with the wall of the first cavity 11. The limiting part 224 can connect with the wall of the first cavity 11 in various ways, such as crimping, snap-fit ​​connection, and threaded connection, which are not limited here. The limiting part 224 is provided with a first guide member 222 and a second guide member 223 at both ends, wherein the first guide member 222 is connected to the wiring part 21, and both the first guide member 222 and the second guide member 223 are provided with guide holes 23. A second flow channel 60 is provided between the second guide member 223 and the wall of the first cavity 11. With this configuration, when the cooling medium flows from the first cooling pipe 30 into the cooling terminal 100, the cooling medium will enter between the first guide member 222 and the first connecting part 12 through the first flow channel 50, and then enter the second cavity 221 through the guide hole 23 on the first guide member 222. After that, it will flow through the guide hole 23 on the second guide member 223 into the second flow channel 60 in the first cavity 11, and then flow from the second flow channel 60 through the connecting hole 152 to the second connecting part 13, and then flow out from the second cooling pipe 40. When the cooling medium flows from the second cooling pipe 40 into the cooling terminal 100, the cooling medium will enter the connecting hole 152 from the second connecting part 13, and then enter the second flow channel 60. After that, it will enter the second cavity 221 through the guide hole 23 on the second guide member 223. The cooling medium in the second cavity 221 will flow into the space between the first guide member 222 and the first connecting part 12 through the guide hole 23 on the first guide member 222, and then flow into the first cooling pipe 30 through the first flow channel 50. Preferably, there is a gap between the end of the second guide member 223 away from the wiring part 21 and the cavity wall of the first cavity 11. With this arrangement, the cooling medium flowing into the second cavity 221 can also flow into the gap and then flow from the second flow channel 60 into the connecting hole 152; or the cooling medium in the connecting hole 152 can flow through the second flow channel 60 into the gap and then flow into the second cavity, thereby achieving more sufficient cooling of the end of the plug part 14 away from the first cooling pipe 30.

[0040] Furthermore, in one embodiment of the present invention, the first connecting part 12 is a sleeve, and the outer wall of the sleeve is provided with a plurality of spaced flanges 19. The first cooling pipe 30 is sleeved and connected to the outer wall of the sleeve so that the flanges 19 and the first cooling pipe 30 are in close contact.

[0041] Understandably, when the first connecting part 12 is a sleeve, the inside of the sleeve forms part of the first cavity 11. The outer wall of the sleeve is provided with multiple spaced flanges 19. With this arrangement, when the first cooling pipe 30 is sleeved and connected to the outer wall of the sleeve, the flanges 19 can ensure that the connection between the first cooling pipe 30 and the outer wall of the sleeve will not fall off, thus improving the sealing performance.

[0042] Furthermore, in one embodiment of the present invention, the second connecting part 13 is a threaded hole opened on the base 15, and the cooling terminal 100 also includes an adapter pipe 17. One end of the adapter pipe 17 is provided with a threaded part 171, which is connected to the threaded hole. The other end of the adapter pipe 17 is provided with an adapter 172, and the second cooling pipe 40 is sleeved on the outer wall of the adapter 172.

[0043] Understandable, such as Figure 4 As shown, the cooling terminal 100 also includes an adapter pipe 17. One end of the adapter pipe 17 is provided with a threaded portion 171, and the second connecting portion 13 is a threaded hole formed on the base 15. The threaded portion 171 and the threaded hole are connected, so that the cooling medium flowing through the connecting hole 152 can flow from the second connecting portion 13 into the adapter pipe 17, or the cooling medium can flow from the adapter pipe 17 through the second connecting portion 13 into the connecting hole 152. The other end of the adapter pipe 17 is provided with an adapter 172, and the second cooling pipe 40 is sleeved on the outer wall of the adapter 172 to connect the second cooling pipe 40 and the adapter pipe 17.

[0044] Furthermore, in one embodiment of the present invention, an abutment portion 173 is provided between the screw portion 171 and the adapter 172. The abutment portion 173 abuts against the base 15. The side of the abutment portion 173 facing the first connecting portion 12 is provided with a groove around the screw portion 171, and a sealing ring is provided in the groove.

[0045] Understandably, by providing an abutment portion 173 between the threaded portion 171 and the adapter 172, the abutment portion 173 has a groove around the threaded portion 171 on the side facing the first connecting portion 12, and a sealing ring is provided in the groove. When the threaded portion 171 and the second connecting portion 13 are threadedly connected, the base 15 of the abutment portion 173 abuts against and presses the sealing ring, thereby ensuring the sealing of the connection between the adapter 17 and the second connecting portion 13 and preventing the cooling medium from leaking between the threaded portion 171 and the second connecting portion 13.

[0046] Furthermore, in one embodiment of the present invention, the outer wall of the adapter 172 is provided with a plurality of flanges 19 at intervals.

[0047] Understandably, by providing multiple flanges 19 at intervals on the outer wall of the adapter 172, when the second cooling pipe 40 is sleeved and connected to the outer wall of the adapter 172, the flanges 19 can ensure that the connection between the second cooling pipe 40 and the outer wall of the adapter 172 will not fall off, thus improving the sealing performance.

[0048] Furthermore, in one embodiment of this utility model, the cooling terminal 100 further includes a fastener 18, which is sleeved on the outer peripheral surface of the first cooling pipe 30 to lock and fix the first cooling pipe 30 and the first connecting portion 12, and / or, the fastener 18 is sleeved on the outer peripheral surface of the second cooling pipe 40 to lock and fix the second cooling pipe 40 and the adapter 172; and / or,

[0049] The base 15 is also provided with a connection hole 153 communicating with the connection hole 152 and a sealing member 24 for opening or closing the connection hole 153.

[0050] Understandably, fasteners 18 are fitted onto the outer circumferential surface of the first cooling pipe 30 or the second cooling pipe 40 to lock and fix the first cooling pipe 30 and the first connecting part 12, or to lock and fix the second cooling pipe 40 and the adapter 172, thereby preventing the first cooling pipe 30 from falling off the first connecting part 12, or preventing the second cooling pipe 40 from falling off the adapter 172. A connecting hole 153 is provided on the base 15, through which other adapter pipes 17 can be connected, and thus other second cooling pipes 40 can be connected. When it is not necessary to connect the adapter pipes 17, the connecting hole 153 can be sealed by the sealing member 24. Preferably, the sealing member 24 and the connecting hole 153 are threaded together.

[0051] This utility model also provides a charging gun, which includes the aforementioned cooling terminal 100. The specific structure of the cooling terminal 100 in this application is as described in the above embodiments. Since the cooling terminal 100 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0052] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

[0053] The above description is only an optional embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the concept of the present utility model and using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included in the patent protection scope of the present utility model.

Claims

1. A cooling terminal (100), characterized in that, The device includes a connector (10), which has a first cavity (11) and a first connecting part (12) and a second connecting part (13) communicating with the first cavity (11). The first connecting part (12) is connected to a first cooling pipe (30), and the second connecting part (13) is connected to a second cooling pipe (40). The connector (10) also has a temperature measuring hole (151) which is spaced apart from the first connecting part (12) and the second connecting part (13). A temperature sensor (16) is provided inside the temperature measuring hole (151).

2. A cooling terminal (100) as described in claim 1, characterized in that, The connector (10) includes a plug-in portion (14) and a base (15) adjacent to the plug-in portion (14). The first connecting portion (12) and the second connecting portion (13) are disposed on the side of the base (15) away from the plug-in portion (14). The first connecting portion (12) is coaxially disposed with the plug-in portion (14). The first cavity (11) extends from the first connecting portion (12) toward the plug-in portion (14). The second connecting portion (13) and the first connecting portion (12) are spaced apart and are connected to each other through a connecting hole (152). The temperature measuring hole (151) is disposed on the side of the base (15) away from the plug-in portion (14).

3. A cooling terminal (100) as described in claim 2, characterized in that, The cooling terminal (100) also includes an inner core (20), which is provided with a wiring part (21) and a flow guiding part (22). The flow guiding part (22) is provided with a second cavity (221) and a flow guiding hole (23). When the inner core (20) is inserted into the first cavity (11), the first cooling pipe (30), the flow guiding hole (23), the second cavity (221), the first cavity (11) and the first cooling pipe (30) are connected.

4. A cooling terminal (100) as described in claim 3, characterized in that, The flow guiding part (22) includes a first flow guiding member (222), a limiting part (224), and a second flow guiding member (223). The first flow guiding member (222) is connected to the wiring part (21), and the limiting part (224) is located between the first flow guiding member (222) and the second flow guiding member (223). The limiting part (224) is connected to the cavity wall of the first cavity (11), and both the first flow guiding member (222) and the second flow guiding member (223) are provided with flow guiding holes (23).

5. A cooling terminal (100) as described in claim 4, characterized in that, The first connecting part (12) is a sleeve, and the outer wall of the sleeve is provided with a plurality of spaced flanges (19). The first cooling pipe (30) is sleeved and connected to the outer wall of the sleeve so that the flanges (19) and the first cooling pipe (30) are in close contact.

6. A cooling terminal (100) as described in claim 5, characterized in that, The second connecting part (13) is a threaded hole opened on the base (15). The cooling terminal (100) also includes an adapter pipe (17). One end of the adapter pipe (17) is provided with a threaded part (171), which is connected to the threaded hole. The other end of the adapter pipe (17) is provided with an adapter (172). The second cooling pipe (40) is sleeved on the outer wall of the adapter (172).

7. A cooling terminal (100) as described in claim 6, characterized in that, An abutment portion (173) is also provided between the threaded portion (171) and the adapter (172). The abutment portion (173) abuts against the base (15). The side of the abutment portion (173) facing the first connecting portion (12) is provided with a groove around the threaded portion (171). A sealing ring is provided in the groove.

8. A cooling terminal (100) as described in claim 7, characterized in that, The adapter (172) has multiple flanges (19) spaced apart on its outer wall.

9. A cooling terminal (100) as described in claim 8, characterized in that, The cooling terminal (100) further includes a fastener (18), which is sleeved on the outer peripheral surface of the first cooling pipe (30) to lock and fix the first cooling pipe (30) and the first connecting part (12), and / or, the fastener (18) is sleeved on the outer peripheral surface of the second cooling pipe (40) to lock and fix the second cooling pipe (40) and the adapter (172); and / or, The base (15) is also provided with a connecting hole (153) communicating with the connecting hole (152) and a sealing member (24) for opening or closing the connecting hole (153).

10. A charging gun, characterized in that, Includes the cooling terminal (100) as described in any one of claims 1-9.

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