Liquid-cooled charging gun connection module

Abstract

The utility model discloses a liquid cooling charging gun connecting module relates to liquid cooling charging technical field, solve the problem of liquid cooling cable stripping section cooling blind area overheating and cable fixation deficiency when high -power charging. Module includes by shell body, end shell, end head enclose the shell, inside is equipped with the installation cavity of accommodating cable stripping section. End shell installs conductor and quick -wearing connector. Shell body passes through slide rail and connecting piece detachable dress air -cooled component, and open the air vent in correspondence, accelerate the air flow in chamber, to stripping section forced air cooling. End head is equipped with cable socket, built -in sealing ring, outer dress wire clamp component, realize cable multiple locking and dustproof waterproof. The utility model discloses with liquid cooling and air -cooled double heat dissipation eliminate cooling blind area, strengthen cable fixation, improve charging safety and reliability, be applicable to the high -power equipment such as charger, charging gun.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of liquid cooling charging, in particular to a liquid cooling charging gun connecting module. BACKGROUND

[0002] High-power charging is an inevitable trend of the development of electric vehicles. Under this background, the internal cables of charging equipment such as chargers and charging guns generate significant heat due to the need to pass through a large current. To address this challenge, liquid cooling cables are commonly used in the prior art, that is, a liquid cooling pipe is integrated inside the cable, and the heat-generating wires are arranged in close proximity to the liquid cooling pipe, thereby achieving efficient cooling of the wires using circulating coolant.

[0003] However, at the interface connection of the charging gun or charger, the cable needs to be stripped to separate the internal wires from the liquid cooling pipe. The wires need to be electrically connected to the conductors (such as copper bars or terminal connectors) inside the device, while the liquid cooling pipe needs to be connected to a quick connector to access the cooling loop. This operation causes the stripped section of the cable to be disconnected from the main cooling path of the liquid cooling pipe, forming a local "cooling blind area". Under the working condition of long-time high-current operation, the wires in the stripped section cannot be effectively cooled, and heat will accumulate rapidly, causing the local temperature to be too high. This is not only the main reason for the instability and shortening of the service life of the charging equipment, but also poses a serious safety hazard.

[0004] In addition, the existing connecting module is often simple in structure in terms of cable fixation, and the connection strength is insufficient. When frequently plugged in and pulled out or subjected to external force, it is easy to cause the electrical connection to loosen or the coolant to leak, further increasing the risk of equipment failure.

[0005] Therefore, there is an urgent need in the prior art for a new connecting module that can specifically address the overheating problem of the stripped section of the cable and at the same time has reliable connection strength. CONTENT OF THE INVENTION

[0006] The liquid cooling charging gun connecting module provided by the present application adopts the following technical solution: A liquid cooling charging gun connecting module, comprising a housing, a quick connector and a conductor are installed on the housing, the quick connector is used to connect the liquid cooling pipe of the cable, and the conductor is used to connect the wire of the cable; an installation cavity for accommodating the stripped section of the cable is formed in the housing, and an air cooling assembly is further provided on the housing to accelerate the air flow in the installation cavity and air cool and cool the stripped section of the cable.

[0007] By adopting the above technical solution, the cable stripping section can be contained and protected through the installation cavity of the housing. At the same time, quick connectors and conductors are used to connect the cable liquid cooling pipe and the conductor respectively. In addition, the air-cooling component accelerates the air flow in the installation cavity, and the cable stripping section that is separated from the cooling path of the liquid cooling pipe is cooled by air cooling, which effectively makes up for the heat dissipation gap in the cooling blind zone and alleviates the problem of overheating of the stripping section.

[0008] Furthermore, the air-cooling component is configured as a fan.

[0009] By adopting the above technical solution, the air-cooling component is specifically set as a fan, which has a simple structure, low cost and high air-cooling efficiency. It is easy to integrate into the housing and can stably provide the power to accelerate airflow, ensuring a continuous and reliable air-cooling effect on the cable stripping section.

[0010] Furthermore, the outer casing includes a casing body, end shells, and end heads. The end shells and end heads are respectively fixedly installed at both ends of the casing body and together with the casing body, they enclose the mounting cavity. The conductor and quick connector are installed on the end shells, with one end extending into the mounting cavity.

[0011] By adopting the above technical solution, the outer shell is divided into a combination structure of the shell body, end shell, and end head, which facilitates disassembly and assembly to enable the assembly and maintenance of the cable stripping section in the installation cavity; at the same time, the conductor and quick connector are concentrated on the end shell and extend into the installation cavity, which can shorten the connection distance between the conductor, quick connector and cable stripping section, reduce connection loss, and improve the stability of electrical connection and liquid cooling connection.

[0012] Furthermore, the air-cooling component is detachably mounted on the housing body via a connecting component; the connecting component includes a slide rail disposed on the housing body and a connector fixedly connected to the air-cooling component, the connector having a sliding part that slides with the slide rail and a buckle that engages with a slot disposed on the housing body.

[0013] By adopting the above technical solution, the air-cooled components are guided and installed by the cooperation of the slide rail and the sliding part, and then fixed by the snap-fit ​​of the buckle and the slot. This makes the air-cooled components detachable, and can be disassembled and installed without the need for additional tools. This facilitates the later inspection or replacement of the air-cooled components, reducing maintenance costs and operational difficulty.

[0014] Furthermore, the end has a socket for threading the cable through it, and a wire clamping assembly is provided at the socket; the wire clamping assembly includes a fixing box, a wire end clamp, a claw, and a protective sleeve; the fixing box is fixed to the end; the wire end clamp and the fixing box are positioned and engaged by a snap-fit ​​structure and fixed by threaded fasteners; the snap-fit ​​structure includes a snap-fit ​​protrusion on the wire end clamp and a positioning groove on the fixing box.

[0015] By adopting the above technical solution, a wire clamping component is set at the socket. First, the wire end clamp and the fixing box are pre-positioned by the snap-fit ​​protrusion and the positioning groove. Then, the wire clamp is tightened with threaded fasteners to ensure the installation accuracy of the wire clamping component. At the same time, the synergistic effect of the fixing box, the wire end clamp, the claws and the protective sleeve are used to enhance the clamping and fixing effect on the cable and prevent the cable from shifting due to external force.

[0016] Furthermore, the cable end clamp has a first snap-fit ​​groove and a second snap-fit ​​groove. The protective sleeve is snapped into the first snap-fit ​​groove and fitted onto the outside of the cable. The claw is snapped into the second snap-fit ​​groove, and the claw has teeth for clamping the outer protective layer of the cable.

[0017] By adopting the above technical solution, the protective sleeve and the claw are positioned and installed on the cable end clamp through the first and second clamping slots respectively. The protective sleeve can wrap around the outside of the cable to avoid wear on the cable sheath, and the claw teeth can embed into the outer protective layer of the cable to further enhance the clamping force on the cable, effectively resist external pulling force, and prevent the connection between the cable and the conductor and liquid cooling pipe from loosening.

[0018] Furthermore, a sealing ring is also provided inside the socket.

[0019] By adopting the above technical solution, a sealing ring is added inside the socket, which can fill the gap between the socket and the cable to form a sealed structure. This effectively prevents external dust, moisture and other impurities from entering the installation cavity, avoiding impurities from affecting the electrical connection performance of the conductor or causing corrosion of the liquid cooling pipe connection parts, thereby improving the sealing protection capability and service life of the module.

[0020] Furthermore, ventilation openings are provided on the opposite side walls of the shell body, and the air-cooling component is provided corresponding to the ventilation openings.

[0021] By adopting the above technical solution, ventilation openings are opened on the opposite side walls of the shell body and the air-cooling components are set accordingly, a directional air circulation channel can be formed, so that the air-cooling components can drive air into the installation cavity from one side ventilation opening and out from the other side ventilation opening, ensuring that the airflow flows efficiently through the cable stripping section, maximizing the removal of heat from the stripping section, and significantly improving the air-cooling efficiency.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting up an independent air-cooling component to cooperate with the mounting cavity of the housing, an air-cooling heat dissipation path is constructed for the cable stripping section, which effectively makes up for the heat dissipation gap caused by the disconnection from the liquid cooling pipe in this area, significantly reduces the risk of overheating at the connection point, and improves the safety and reliability of the charging process.

[0023] 2. The cable clamping assembly, consisting of a fixing box, cable end clamp, claws, and protective sleeve, works in conjunction with the end cap and sealing ring to achieve multiple locking and sealing of the cable. This provides excellent tensile and torsion resistance, while ensuring dustproof and waterproof sealing at the interface, greatly enhancing the long-term stability and lifespan of the connection module.

[0024] 3. By enabling the internal liquid cooling pipeline and the external air cooling component to work together within the module, a dual active heat dissipation system combining liquid cooling and air cooling is formed. This system can simultaneously achieve efficient heat dissipation by using liquid cooling inside the cable and air cooling at the external connection points, thus synergistically improving efficiency and fundamentally solving the technical problem of localized overheating of the cable stripping section in high-power scenarios. Attached Figure Description

[0025] Figure 1 This is a perspective view of the present application, mainly showing its overall structure; Figure 2 This is a three-dimensional view from another perspective of this application, mainly showing the overall structure of the shell; Figure 3 It is a three-dimensional view of the end shell, mainly showing the installation structure of the conductor and quick connector; Figure 4 It shows the internal structure of the mounting cavity, mainly demonstrating the cable construction and installation location; Figure 5 The main exhibits are air-cooled components and connection components; Figure 6 and Figure 7 The main exhibit is the wire clamping assembly.

[0026] Explanation of reference numerals in the attached drawings: 10. Outer shell; 11. Shell body; 111. End; 113. End shell; 12. Quick connector; 13. Conductor; 21. Claw; 211. Claw tooth; 22. Fixing box; 23. Protective sleeve; 24. Cable end clamp; 241. First snap-fit ​​groove; 242. Second snap-fit ​​groove; 25. Snap-fit ​​protrusion; 26. Positioning groove; 27. Sealing ring; 31. Fan; 32. Vent; 33. Slide rail; 34. Connector; 35. Sliding part; 361. Buckle; 37. Slot; 38. Limiting plate; 381. Abutment groove; 40. Cable; 41. Wire; 42. Liquid cooling pipe. Detailed Implementation

[0027] The technical solutions of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this application, and not all embodiments. The components of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] This application discloses a liquid-cooled charging gun connection module, referring to... Figure 1 and Figure 2 The module includes a housing 10, which forms the main body of the entire module and provides support and protection for the internal components. Specifically, the housing 10 consists of three parts: a hollow housing body 11, an end shell 113 that closes one end of the housing body 11, and an end cap 111 that closes the other end of the housing body 11. These three parts are fixedly connected by screws or quick-release clips, together forming a sealed mounting cavity. In this embodiment, the end cap 111 is connected to the housing body 11 by screws, and the housing body 11 and the end shell 113 are detachably connected by conventional quick-release clips. The mounting cavity is used to accommodate and protect the stripped section of the cable 40.

[0029] Reference Figure 3 and Figure 4 A conductor 13 and a quick connector 12 are mounted on the end housing 113. In this embodiment, the conductor 13 can be a copper busbar or a high-current terminal block. One end of the conductor extends into the mounting cavity for electrical connection with the stripped wire 41 of the cable 40. In this embodiment, this connection can be achieved by welding or crimping. The other end of the conductor 13 is exposed outside the end housing 113 for connection to external equipment. The quick connector 12 is a standard liquid cooling circuit connector. One end of the quick connector also extends into the mounting cavity for sealing with the liquid cooling pipe 42 inside the cable 40, while the other end is used to connect to external cooling pipes.

[0030] Reference Figure 5To address the overheating issue of the stripped section of cable 40, this module integrates a cooling component on the housing 10. In this embodiment, the cooling component is a fan 31, which is mounted on the housing body 11 via a connecting component. The connecting component includes two slide rails 33 integrally formed with the housing body 11, and a connector 34 fixedly mounted to the fan 31 with screws. The connector 34 is designed with a sliding part 35 and a latch 361. In this embodiment, the sliding part 35 is a protruding plate-like structure. In this embodiment, the latch 361 is an elastic latch 361. During installation, the sliding part 35 is aligned and inserted into the groove formed by the slide rail 33. The fan 31 and the connector 34 are pushed along the slide rail 33 until the latch 361 engages with the slot 37 on the housing body 11, producing a clicking sound, indicating that the installation is in place. To ensure stability, a limiting plate 38 is provided, with an abutment groove 381. When the buckle 361 is engaged with the slot 37, the end of the sliding part 35 is precisely embedded in the abutment groove 381, thereby restricting the movement of the connector 34 in both the front and rear directions. This enables the fan 31 to be installed quickly, securely, and without tools. Preferably, ventilation openings 32 are provided on opposite side walls of the housing body 11, and the fan 31 is installed corresponding to one ventilation opening 32. Its preferred working mode is to draw air outward from the mounting cavity, thereby forming an air intake at the other ventilation opening 32, creating a continuous airflow that flows through the stripped section of the cable 40 within the mounting cavity.

[0031] Reference Figure 6 and Figure 7 To ensure a secure and sealed connection of the cable 40, a socket is provided on the end 111 through which the cable 40 passes into the mounting cavity. A sealing ring 27 is embedded in the socket to prevent external dust and moisture from entering. Outside the socket, a cable clamping assembly is provided. This assembly mainly includes a fixing box 22 fixed to the end 111, a cable end clamp 24 that mates with the fixing box 22, a protective sleeve 23, and a claw 21. The cable end clamp 24 and the fixing box 22 are pre-positioned by a snap-fit ​​structure, which consists of a snap-fit ​​protrusion 25 on the cable end clamp 24 and a positioning groove 26 on the fixing box 22. When engaged, they prevent misalignment. Subsequently, the cable end clamp 24 is fastened to the fixing box 22 with screws. Inside the cable end clamp 24, a first snap-fit ​​groove 241 and a second snap-fit ​​groove 242 are provided. The protective sleeve 23, made of rubber or soft plastic in this embodiment, is pressed tightly within the first snap-fit ​​groove 241 and tightly wraps the outer protective layer of the cable 40, serving as a buffer and initial clamping mechanism. The clamping claw 21 is pressed tightly within the second snap-fit ​​groove 242, and has multiple locking teeth 211 machined on it. When the screw is tightened, the cable end clamp 24 and the fixing box 22 retract, forcing the locking teeth 211 on the clamping claw 21 to bite into the outer protective layer of the cable 40, thereby firmly locking the cable 40 and effectively resisting external pulling forces.

[0032] In one embodiment, this embodiment describes the application of the module in a charger. The module is fixed by threaded connection between a threaded hole on its end 111 and a mounting hole on the charger panel. The conductor 13 inside the module is connected to the power output circuit inside the charger, such as a DC bus, and the quick connector 12 is connected to the cooling circulation system piping inside the charger. In this case, the module serves as a high-performance output interface of the charger, providing reliable and efficient connection and heat dissipation for high-power charging.

[0033] In one embodiment, this embodiment describes the application of the module in a charging gun. The module is fixed to the charging gun's body structure via its end shell 113. The conductor 13 inside the module is connected to the wire 41 inside the charging gun, and the cable 40 connected to this module serves as the power input cable 40 of the charging gun. The quick connector 12 is also connected to the miniature liquid cooling circulation system inside the charging gun. In this scenario, the module is integrated into or near the charging gun handle, effectively solving the problem of overheating and damage at the cable 40 connection point due to the limited space inside the charging gun.

[0034] The implementation principle of this application is as follows: The implementation principle of this utility model is based on a dual active heat dissipation mechanism that combines liquid cooling and air cooling, as well as a multi-locking wire fixing structure.

[0035] Heat dissipation principle: External coolant flows into the liquid cooling pipe 42 of cable 40 through quick connector 12, providing efficient internal cooling for the cable 40 body. Simultaneously, fan 31 starts, creating airflow within the mounting cavity. This airflow directly blows onto the stripped section of cable 40 and the connection points of wire 41, which are prone to overheating due to separation from the liquid cooling pipe 42, quickly carrying away the accumulated heat. These two processes work together to form a comprehensive, all-encompassing heat dissipation system.

[0036] Cable fixing principle: Through the biting of the claw 21, the squeezing of the protective sleeve 23, and the clamping of the cable end clamp 24 and the fixing box 22, the axial tension and torsional force of the cable 40 are gradually decomposed and dissipated, ensuring the long-term stability and sealing of the electrical connection and liquid cooling connection, and structurally eliminating failures caused by loosening.

[0037] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A liquid-cooled charging gun connection module, characterized in that, The device includes a housing (10), on which a quick connector (12) and a conductor (13) are mounted. The quick connector (12) is used to connect the liquid cooling pipe (42) of the cable (40), and the conductor (13) is used to connect the wire (41) of the cable (40). An installation cavity for accommodating the stripped section of the cable (40) is formed inside the housing (10). The housing (10) is also provided with an air-cooling component to accelerate the airflow in the installation cavity to cool the stripped section of the cable (40).

2. The liquid-cooled charging gun connection module according to claim 1, characterized in that, The air-cooling component is configured as a fan (31).

3. The liquid-cooled charging gun connection module according to claim 1, characterized in that, The outer casing (10) includes a casing body (11), an end shell (113), and an end head (111). The end shell (113) and the end head (111) are respectively fixedly installed at both ends of the casing body (11) and together with the casing body (11) form the mounting cavity. The conductor (13) and the quick connector (12) are installed on the end shell (113) and one end extends into the mounting cavity.

4. The liquid-cooled charging gun connection module according to claim 3, characterized in that, The air-cooling component is detachably mounted on the housing body (11) via a connecting component; the connecting component includes a slide rail (33) disposed on the housing body (11) and a connector (34) fixedly connected to the air-cooling component. The connector (34) is provided with a sliding part (35) that slides with the slide rail (33) and a buckle (361) that engages with a slot (37) disposed on the housing body (11).

5. A liquid-cooled charging gun connection module according to claim 3, characterized in that, The end (111) is provided with a socket for threading the cable (40), and a wire clamping assembly is provided at the socket; the wire clamping assembly includes a fixing box (22), a wire end clamp (24), a claw (21) and a protective sleeve (23); The fixing box (22) is fixed to the end (111); The wire end clamp (24) and the fixing box (22) are positioned and clamped by a snap-fit ​​structure and fixed by threaded fasteners; The snap-fit ​​structure includes a snap-fit ​​protrusion (25) on the wire end clamp (24) and a positioning groove (26) on the fixing box (22).

6. A liquid-cooled charging gun connection module according to claim 5, characterized in that, The cable end clamp (24) is provided with a first snap-fit ​​groove (241) and a second snap-fit ​​groove (242). The protective sleeve (23) is snapped in the first snap-fit ​​groove (241) and sleeved on the outside of the cable (40). The claw (21) is snapped in the second snap-fit ​​groove (242), and the claw (21) is provided with a tooth (211) for clamping the outer protective layer of the cable (40).

7. A liquid-cooled charging gun connection module according to claim 5, characterized in that, A sealing ring (27) is also provided inside the socket.

8. A liquid-cooled charging gun connection module according to claim 3, characterized in that, Ventilation openings (32) are provided on the opposite side walls of the shell body (11), and the air-cooling component is provided corresponding to the ventilation openings (32).

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