A liquid-cooled terminal

Abstract

This utility model provides a liquid-cooled terminal, relating to the field of liquid-cooled charging gun technology. In this application, a first cavity is formed between the inner wall of the sleeve and the outer wall of the terminal. The liquid inlet connector, the first cavity, the terminal, and the channel within the liquid-cooled cable are sequentially connected. The conductor of the liquid-cooled cable passes through the terminal and is pressed against it. The terminal also includes a frustum, a protrusion, and a groove. The frustum is coaxially disposed on the outer wall of the second end of the terminal. The first end of the terminal passes through the sleeve, thereby causing the end face of the second end of the sleeve to fit against the end face of the frustum away from the liquid-cooled cable. The protrusion is fixedly connected to the edge of the second end of the sleeve, and the groove is formed on the edge of the frustum, with the protrusion fitting within the groove. The liquid-cooled terminal of this application has a simple structure, is quick and convenient to install, and does not loosen. It eliminates the need for the liquid-cooled cable to pass through the sleeve and repeatedly move the sleeve on the liquid-cooled cable, avoiding wear on the outer surface of the liquid-cooled cable and thus further improving installation efficiency and accuracy.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled charging gun technology, and in particular to a liquid-cooled terminal. Background Technology

[0002] With the growing demand in the new energy market for lightweight designs, and the need for high charging power and fast charging speeds within the original cross-sectional area, high-power liquid-cooled charging technology has emerged. Liquid-cooled terminals are primarily used in high-power charging of new energy vehicles (liquid-cooled supercharging) and high-power data centers. Their core function is to remove heat generated by high current through an internal or external liquid circulation system, thereby improving current carrying capacity and charging efficiency. However, current manufacturing processes are complex. A sleeve must first be placed over the wire, then the wire is pulled out and cold-pressed to the terminal before being pushed back into the sleeve. This means the wire can only be operated after it is fully extended. Furthermore, the sleeve, when first placed over the liquid-cooled wire, is prone to slippage, and the crimping area in the middle is easily isolated from the main coolant flow channel, preventing the coolant from submerging the cold-pressed area.

[0003] Therefore, there is an urgent need for a liquid-cooled terminal that is simple in structure, quick and easy to install, does not loosen, and does not require the liquid-cooled cable to pass through the sleeve or the sleeve to be moved repeatedly on the liquid-cooled cable. Utility Model Content

[0004] The purpose of this invention is to provide a liquid-cooled terminal that solves the technical problem in the prior art where a sleeve must first be placed on the wire, then the wire is pulled out and cold-pressed with the terminal before being pushed back into the sleeve. This process often results in the crimping area being isolated from the main coolant channel, preventing the coolant from fully immersing the crimping area. The various technical effects of the preferred solutions provided by this invention are detailed below.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This utility model provides a liquid-cooled terminal, including a terminal, a sleeve fixedly sleeved on the terminal, and a liquid inlet connector connected to the sleeve. A first cavity is formed between the inner side wall of the sleeve and the outer side wall of the terminal. A liquid-cooled cable is connected to a second end of the terminal. The liquid inlet connector, the first cavity, the terminal, and the channel inside the liquid-cooled cable are sequentially connected. The cable conductor of the liquid-cooled cable passes through the terminal and is pressed against the terminal. The device also includes: A frustum is coaxially disposed on the outer side wall of the second end of the terminal, and the first end of the terminal passes through the sleeve, so that the end face of the second end of the sleeve is in contact with the end face of the frustum away from the liquid-cooled cable. The protrusion is fixedly connected to the edge of the second end of the sleeve, and the groove is formed on the edge of the frustum. The protrusion is adapted to fit into the groove.

[0007] Preferred options also include: The sleeve pin hole and the terminal pin hole, wherein a plurality of the sleeve pin holes are formed on the side wall of the second end of the sleeve, and a plurality of the terminal pin holes are formed on the outer side wall of the second end of the terminal; A pin that passes through the sleeve pin hole and is threaded into the terminal pin hole.

[0008] Preferred options also include: A first sealing ring, and a plurality of first sealing rings are sleeved on both ends of the terminal and sealed between the sleeve and the terminal. A second cavity is formed between the sleeve, the terminal and the first sealing ring. The middle section of the terminal is a crimping section, which is located in the second cavity. The cable conductor of the liquid-cooled cable is inserted into the crimping section from the second end of the terminal and forms a gap with the inner sidewall of the crimping section. The second cavity communicates with the gap and the channel.

[0009] Preferred options also include: The first through hole, and a plurality of the first through holes are formed on the side wall of the riveting section and communicate between the second cavity and the gap.

[0010] Preferred options also include: A locking nut is threaded to the second end of the terminal, and the liquid cooling tube of the liquid-cooled cable is sleeved on the second end of the terminal and pressed against the second end of the terminal by the locking nut.

[0011] Preferably, the liquid inlet connector includes: The mounting base and the step are provided, wherein the mounting base is connected to the coolant inlet end via a connector nut, and the step is disposed within the mounting base; The valve core has a first end that contacts the end face of the step, and a second end that passes through the mounting base and is threaded onto the side wall of the sleeve. The coolant inlet is connected in sequence to the mounting base, the valve core, and the second cavity.

[0012] Preferably, the liquid inlet connector further includes: The second cavity is disposed between the inner wall of the mounting base and the outer wall of the valve core; The second through hole, and multiple second through holes are formed on the side wall of the valve core, and the cold liquid input end is connected to the second cavity, the second through hole, and the second cavity in sequence.

[0013] Preferably, the liquid inlet connector further includes: The third sealing ring is sleeved on the first end of the valve core and is sealed between the valve core and the mounting base; The fourth sealing ring is sleeved on the second end of the valve core. When the valve core is threaded onto the side wall of the sleeve, the fourth sealing ring abuts against the mounting base, the valve core, and the sleeve.

[0014] Preferably, the first end of the terminal is a spring end, and a second sealing ring is sleeved on the outer side of the first end of the sleeve.

[0015] Preferably, the first end of the terminal is a pin end.

[0016] In the technical solution provided by this utility model, the second end of the terminal is connected to the liquid-cooled cable, that is, the cable conductor of the liquid-cooled cable passes through the second end of the terminal and is crimped inside the terminal; after the sleeve is put on the first end of the terminal, the liquid inlet connector, the second cavity, the terminal and the channel are connected in sequence; this setting reduces the cumbersome steps of first pulling out the conductor, then cold-pressing, and then pushing the conductor into the sleeve. The main function of the truncated cone is to axially limit the sleeve on the terminal, so that the crimping position is exactly inside the sleeve, avoiding the sleeve from being on the liquid-cooled cable. This allows the cold-pressed area with severe heat generation to be immersed in the main channel of coolant, improving installation accuracy. Coolant continuously flows through the liquid inlet connector, the second cavity, the terminal and the channel, thereby accelerating the heat dissipation of the entire cable conductor; when the sleeve is put on the terminal and contacts the truncated cone, the protrusion fits into the groove to achieve circumferential limiting. After the sleeve is limited on the terminal, it is fixed, thus completing the installation of the sleeve and the terminal. Overall, the liquid-cooled terminal structure of this application is simple, quick and easy to install, and does not loosen. It eliminates the need for the liquid-cooled cable to pass through the sleeve and repeatedly move the sleeve on the liquid-cooled cable, thus avoiding wear on the outer surface of the liquid-cooled cable and further improving installation efficiency and accuracy. 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 these drawings without creative effort.

[0018] Figure 1 This is an overall schematic diagram of the liquid-cooled terminal in Embodiment 1 of this utility model; Figure 2 This is an exploded view of the liquid-cooled terminal in Embodiment 1 of this utility model; Figure 3 This is a cross-sectional schematic diagram of the liquid-cooled terminal in Embodiment 1 of this utility model; Figure 4 yes Figure 3 A magnified view of part A; Figure 5 This is a schematic diagram of the pin end of Embodiment 2 of this utility model.

[0019] In the diagram: 1. Liquid cooling pipe; 2. Cable conductor; 3. Pin; 4. First sealing ring; 5. Sleeve; 6. Locking nut; 7. Terminal; 8. Liquid inlet connector; 81. Mounting base; 82. Valve core; 83. Third sealing ring; 84. Fourth sealing ring; 85. Second cavity; 86. Second through hole; 87. Step; 9. Connector nut; 10. Second sealing ring; 11. Sleeve pin hole; 12. Protrusion; 13. Riveting section; 14. Terminal pin hole; 15. Groove; 16. Channel; 17. First cavity; 18. First through hole; 19. Spring end; 20. Frustum; 21. Pin end; 22. Gap. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1, Reference Figures 1-4 A specific embodiment of this utility model provides a liquid-cooled terminal, including a terminal 7, a sleeve 5 fixedly sleeved on the terminal 7, and a liquid inlet connector 8 connected to the sleeve 5. A first cavity 17 is formed between the inner side wall of the sleeve 5 and the outer side wall of the terminal 7. A liquid-cooled cable is connected to the second end of the terminal 7. The liquid inlet connector 8, the first cavity 17, the terminal 7, and the channel 16 inside the liquid-cooled cable are sequentially connected. The cable conductor 2 of the liquid-cooled cable passes through the terminal 7 and is crimped onto the terminal 7. The device also includes: The frustum 20 is coaxially disposed on the outer side wall of the second end of the terminal 7. The first end of the terminal 7 passes through the sleeve 5, so that the end face of the second end of the sleeve 5 is in contact with the end face of the frustum 20 away from the liquid-cooled cable. The protrusion 12 is fixedly connected to the edge of the second end of the sleeve 5, and the groove 15 is opened on the edge of the frustum 20. The protrusion 12 is adapted to fit into the groove 15.

[0022] In existing processing techniques, liquid-cooled terminals are complex to manufacture. They require first placing a sleeve over the wire, then pulling the wire out and cold-pressing it against the terminal before pushing it back into the sleeve. This means the wire can only be operated after it's fully extended. Furthermore, the sleeve, when first placed over the liquid-cooled wire, is prone to slippage, and the crimping area is easily isolated from the main coolant channel, preventing the coolant from submerging the cold-pressing area. In this application, the second end of terminal 7 is connected to the liquid-cooled wire; that is, the cable conductor 2 of the liquid-cooled cable passes through the second end of terminal 7 and is crimped inside. When the sleeve 5 is placed over the first end of terminal 7, the liquid inlet connector 8, the first cavity 17, terminal 7, and channel 16 are sequentially connected. This arrangement reduces the cumbersome steps of pulling out the conductor, cold-pressing it, and then pushing it back into the sleeve. The main function of the frustum 20 is to axially limit the sleeve 5 fitted onto the terminal 7, ensuring that the crimping position is precisely within the sleeve 5, preventing the sleeve 5 from being fitted onto the liquid-cooled cable. This allows the heavily heated cold-pressed area to be fully immersed in the main coolant channel, improving installation accuracy. Coolant continuously flows through the inlet connector 8, the first cavity 17, the terminal 7, and the channel 16, accelerating heat dissipation of the entire cable conductor 2. When the sleeve 5 is fitted onto the terminal 7 and contacts the frustum 20, the protrusion 12 adapts to the groove 15, achieving circumferential limiting. After the sleeve 5 is limited onto the terminal 7, it is then fixed, completing the installation of the sleeve 5 and the terminal 7. Overall, the liquid-cooled terminal structure of this application is simple, quick, and convenient to install, with no loosening. It eliminates the need for the liquid-cooled cable to pass through the sleeve 5 and repeatedly move the sleeve 5 on the liquid-cooled cable, avoiding wear on the outer surface of the liquid-cooled cable, thereby further improving installation efficiency and accuracy.

[0023] Further optimization of the scheme also includes sleeve pin holes 11, terminal pin holes 14 and pins 3. Multiple sleeve pin holes 11 are opened on the side wall of the second end of the sleeve 5, and multiple terminal pin holes 14 are opened on the outer side wall of the second end of the terminal 7; the pins 3 pass through the sleeve pin holes 11 and are threaded into the terminal pin holes 14.

[0024] refer to Figures 2-3After the sleeve 5 is inserted and the protrusion 12 and groove 15 are engaged and positioned, align the sleeve pin hole 11 and the terminal pin hole 14; insert the pin 3 from the outside of the sleeve 5 into the sleeve pin hole 11, rotate the pin 3 so that its tail thread is screwed into the terminal pin hole 14, and tighten and lock it; multiple sets of pin holes are evenly distributed along the circumference, and one or more sets of pins 3 can be selected to lock together according to the working conditions. Among them, the truncated cone 20 only serves as an axial limit, and the threaded pin 3 locks the sleeve 5 and the terminal 7 rigidly, preventing the sleeve 5 from axially moving due to liquid pressure or insertion / removal force; the protrusion 12 and the groove 15 only serve as simple locking to prevent rotation, and the threaded connection of the pin 3 forms a mechanical lock, so the sleeve 5 will not loosen or misalign under long-term high-frequency insertion / removal and high-pressure coolant impact; the pin 3 adopts a threaded detachable structure, so when inspecting or replacing the terminal 7 or the sleeve 5 in the future, only the pin 3 needs to be unscrewed to disassemble the component, without the need for overall scrapping, thus reducing maintenance costs; multiple sets of pin holes are arranged circumferentially, so the assembly stress is evenly distributed on the outer wall of the sleeve 5 and the terminal 7, avoiding deformation of the sleeve 5 and cracking of the terminal 7 caused by single-point force.

[0025] Further optimization of the scheme also includes a first sealing ring 4, multiple first sealing rings 4 are sleeved on both ends of the terminal 7 and sealed between the sleeve 5 and the terminal 7. A first cavity 17 is formed between the sleeve 5, the terminal 7 and the first sealing ring 4. The middle section of the terminal 7 is a riveting section 13, which is located in the first cavity 17. The cable conductor 2 of the liquid-cooled cable is inserted into the riveting section 13 from the second end of the terminal 7 and a gap 22 is formed between it and the inner wall of the riveting section 13. The first cavity 17 is connected to the gap 22 and the channel 16.

[0026] refer to Figures 2-3 Before installing the sleeve 5, the first sealing ring 4 is respectively fitted onto the outer walls of the front and rear ends (corresponding to the first end and the second end) of the terminal 7; the sleeve 5 is inserted from the first end of the terminal, and the first sealing ring 4 at both ends is squeezed to form an annular seal, sealing the first cavity 17; the cable conductor 2 is inserted into the riveting section 13 from the second end of the terminal 7, and after crimping, a uniform gap 22 is maintained between the cable conductor 2 and the inner wall of the riveting section 13; after the coolant enters the first cavity 17, part of it wraps around the outer wall of the riveting section 13 to dissipate heat, and part of it flows into the heat-generating contact surface between the cable conductor 2 and the terminal 7 through the gap 22, and finally flows into the channel 16 inside the liquid-cooled cable for circulation.

[0027] The first sealing ring 4 on the first and second ends of terminal 7 completely seals the first cavity 17, preventing coolant from leaking out from the gap 22 between the sleeve 5 and terminal 7, which is suitable for high-pressure liquid cooling cycle conditions. The outer wall of the riveting section 13 is immersed in the coolant in the first cavity 17, and the gap between the cable conductor 2 and the inner wall of the riveting section 13 forms an internal flow channel. At the same time, the cable conductor 2 is double-wrapped from the outside and inside to press the heat-generating area, eliminating heat dissipation dead corners. The first sealing rings 4 at both ends simultaneously prevent external moisture and dust from entering the first cavity 17, avoiding internal metal oxidation and impurities from clogging the flow channel. The standardized riveting forming process stably controls the gap size, ensuring a balanced flow of coolant and preventing local interruption and uneven heat dissipation.

[0028] Further optimization of the scheme also includes a first through hole 18, with multiple first through holes 18 being formed on the side wall of the riveting section 13 and connected between the first cavity 17 and the gap 22.

[0029] refer to Figure 3 After the first cavity 17, the first through hole 18, the gap 22, and the channel 16 are connected, a main channel for coolant is formed. After the coolant flows into the first cavity 17 from the inlet connector 8, part of it flows directly along the outer wall of the riveting section 13 to dissipate heat, and the other part flows through multiple sets of first through holes 18 and flows into the gap 22 between the cable conductor 2 and the inner wall of the riveting section 13. After passing through the internal flow channel, it flows into the channel 16 to form an internal and external circulation path.

[0030] The first through hole 18 provides a directional flow channel for the coolant, forcing the coolant to flow into the contact heating surface (inner wall of the riveting section 13) between the cable conductor 2 and the terminal 7, rather than passively exchanging heat only on the outer wall; multiple sets of first through holes 18 are evenly arranged along the circumference of the riveting section 13, and the coolant enters the internal gap 22 simultaneously from multiple points, avoiding local hot spots caused by insufficient flow on one side; the first cavity 17 and the gap 22 are connected through the first through hole 18, balancing the liquid pressure between the first cavity 17 and the internal gap 22, reducing the differential pressure load on the sleeve 5 and the first sealing ring 4, and extending the service life of the seal; the circulating coolant continuously flushes the first through hole 18 and the internal gap 22, which can remove the metal chips generated by crimping and prevent the gap 22 from becoming blocked and heat dissipation from failing.

[0031] Further optimization of the solution also includes a locking nut 6, which is threaded onto the second end of the terminal 7. The liquid cooling tube 1 of the liquid cooling cable is fitted onto the second end of the terminal 7 and is pressed against the second end of the terminal 7 by the locking nut 6.

[0032] refer to Figures 1-3Before installation, first place the locking nut 6 onto the liquid-cooled cable, then connect the liquid-cooled tube 1 of the liquid-cooled cable to the outer wall of the second end of the terminal 7, with the opening of the liquid-cooled tube 1 fitting against the stepped surface on the outer side of the second end of the terminal 7. Insert the locking nut 6 and tighten it along the external thread of the terminal. The end face of the locking nut 6 continuously presses against the side wall of the liquid-cooled tube 1, ensuring a tight seal between the inner wall of the liquid-cooled tube 1 and the outer wall of the terminal 7. The channel 16 and the gap 22 are precisely aligned and connected, allowing the coolant to circulate smoothly between the terminal 7 and the liquid-cooled cable. It is possible to use a locking nut 6 with a suitable inner diameter to match liquid-cooled cables of different diameters, thus enhancing versatility.

[0033] The solution is further optimized. The liquid inlet connector 8 includes a mounting base 81, a step 87, and a valve core 82. The mounting base 81 is connected to the cold liquid inlet end through the connector nut 9. The step 87 is set inside the mounting base 81. The first end of the valve core 82 contacts the end face of the step 87. The second end of the valve core 82 passes through the mounting base 81 and is threaded to the side wall of the sleeve 5. The cold liquid inlet end is connected to the mounting base 81, the valve core 82, and the first cavity 17 in sequence.

[0034] refer to Figure 4 First, the second end of the valve core 82 is passed through the mounting base 81, and then the first end of the valve core 82 is axially attached to the step 87 (the outer diameter of the first end of the valve core 82 is larger than the outer diameter of the second end of the valve core 82). The second end of the valve core 82 passes through the center of the step 87 and is screwed into the reserved interface on the outer wall of the sleeve 5 through a thread, thus completing the sealed connection between the valve core 82, the mounting base 81 and the sleeve 5. The connector nut 9 locks and fixes the external liquid supply pipeline to the input end of the mounting base 81. The coolant flows into the interior of the mounting base 81 from the external pipeline, and is introduced into the first cavity 17 of the sleeve 5 through the internal channel of the valve core 82, thus completing the coolant supply. Mounting seat 81, valve core 82, and sleeve 5 are assembled separately. If mounting seat 81, valve core 82, or sleeve 5 is damaged individually, they can be replaced separately without the need for overall replacement. The internal step 87 of mounting seat 81 axially limits the first end of valve core 82. After assembly, the internal channel of valve core 82 is precisely aligned with the first cavity 17, preventing flow channel misalignment and flow attenuation. The valve core 82 is threaded and locked to the side wall of sleeve 5, preventing the joint from falling off or tilting under the impact of high-pressure coolant.

[0035] In a further optimized design, the liquid inlet connector 8 also includes a second cavity 85 and a second through hole 86. The second cavity 85 is located between the inner side wall of the mounting base 81 and the outer side wall of the valve core 82. Multiple second through holes 86 are opened on the side wall of the valve core 82, and the cold liquid inlet end is connected to the second cavity 85, the second through hole 86, and the first cavity 17 in sequence.

[0036] refer to Figures 3-4After the external coolant enters the mounting base 81, it first fills the second cavity 85 around the valve core 82. Then, it is evenly distributed through multiple sets of second through holes 86 circumferentially distributed around the valve core 82. The coolant flows synchronously from all sides of the valve core 82 into the first cavity 17 inside the sleeve 5, achieving uniform liquid supply throughout the entire area. The second cavity 85 acts as a buffer chamber, absorbing the liquid pulse pressure generated by the external pump and stabilizing the coolant flow rate and pressure entering the terminal. Multiple sets of second through holes 86 are arranged circumferentially along the valve core 82, allowing the coolant to be introduced into the first cavity 17 from all directions (360°), preventing single-point liquid entry from causing water flow deviation or insufficient local heat dissipation within the first cavity 17. The first cavity 17 increases the coolant transition volume, reduces pipe flow resistance, increases the coolant circulation velocity, and enhances heat exchange capacity.

[0037] In a further optimized design, the inlet connector 8 also includes a third sealing ring 83 and a fourth sealing ring 84. The third sealing ring 83 is fitted onto the first end of the valve core 82; the fourth sealing ring 84 is fitted onto the second end of the valve core 82. When the valve core 82 is threaded onto the side wall of the sleeve 5, the fourth sealing ring 84 abuts against the mounting base 81, the valve core 82, and the sleeve 5.

[0038] refer to Figure 4 Before assembling the valve core 82, the third sealing ring 83 is fitted onto the first end of the valve core 82 and the fourth sealing ring 84 is fitted onto the second end of the valve core 82. The valve core 82 is screwed into the side wall of the sleeve 5, and the third sealing ring 83 at the first end of the valve core 82 presses against the inner wall of the mounting seat 81, preventing coolant from leaking out from the first end of the valve core 82. After the valve core 82 is threaded and tightened, the fourth sealing ring 84 is squeezed into the fitting gap between the end face of the mounting seat 81, the outer wall of the valve core 82, and the outer wall of the sleeve 5 (i.e., the edge of the reserved interface), achieving multiple seals at the connection position between the liquid inlet connector 8 and the sleeve 5, that is, achieving seals between the mounting seat 81 and the valve core 82, and between the valve core 82 and the sleeve 5. External water vapor and dust cannot enter the cooling circuit through the gap of the liquid inlet connector 8, avoiding corrosion of the metal inside the valve core 82 and the sleeve 5.

[0039] The scheme is further optimized so that the first end of the terminal 7 is the spring end 19, and the second sealing ring 10 is sleeved on the outer side of the first end of the sleeve 5.

[0040] refer to Figures 1-2 The spring end 19 includes multiple elastic springs, which, after insertion, fit the conductor at multiple points, resulting in low contact resistance and minimal heat generation at the contact points during high-current operation. During insertion and removal, the elastic deformation of the springs adapts to assembly tolerances, preventing incomplete contact. The second sealing ring 10 on the outer side of the sleeve 5 forms an annular seal at the interface between the terminal 7 and the equipment, preventing rainwater, water mist, and condensate from the charging gun from penetrating into the equipment.

[0041] Example 2: The only difference between this example and Example 1 is that the first end of terminal 7 is a pin end 21.

[0042] refer to Figure 5 The solid pin end 21 of the front end of terminal 7 is directly inserted into the matching female socket hole, and the outer wall of the columnar pin is tightly fitted with the inner wall of the female socket to achieve conductive connection.

[0043] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., used herein to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In this description, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0045] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A liquid-cooled terminal, comprising a terminal (7), a sleeve (5) fixedly sleeved on the terminal (7), and a liquid inlet connector (8) connected to the sleeve (5), wherein a first cavity (17) is formed between the inner side wall of the sleeve (5) and the outer side wall of the terminal (7), a liquid-cooled cable is connected to the second end of the terminal (7), and the liquid inlet connector (8), the first cavity (17), the terminal (7), and a channel (16) in the liquid-cooled cable are sequentially connected, characterized in that, The cable conductor (2) of the liquid-cooled cable passes through the terminal (7) and is crimped onto the terminal (7), and also includes: A frustum (20) is coaxially disposed on the outer side wall of the second end of the terminal (7). The first end of the terminal (7) passes through the sleeve (5), so that the end face of the second end of the sleeve (5) is attached to the end face of the frustum (20) away from the liquid-cooled cable. The protrusion (12) and the groove (15) are fixedly connected to the edge of the second end of the sleeve (5), and the groove (15) is opened on the edge of the frustum (20). The protrusion (12) is adapted to the groove (15).

2. The liquid-cooled terminal according to claim 1, characterized in that, Also includes: Sleeve pin hole (11) and terminal pin hole (14), a plurality of sleeve pin holes (11) are opened on the side wall of the second end of the sleeve (5), and a plurality of terminal pin holes (14) are opened on the outer side wall of the second end of the terminal (7); Pin (3) passes through the sleeve pin hole (11) and is threaded into the terminal pin hole (14).

3. The liquid-cooled terminal according to claim 1, characterized in that, Also includes: First sealing ring (4), multiple first sealing rings (4) are sleeved on both ends of the terminal (7) and sealed between the sleeve (5) and the terminal (7). First cavity (17) is formed between the sleeve (5), the terminal (7) and the first sealing ring (4). The middle section of the terminal (7) is a riveting section (13). The riveting section (13) is located in the first cavity (17). The cable conductor (2) of the liquid-cooled cable is inserted into the riveting section (13) from the second end of the terminal (7) and forms a gap (22) with the inner sidewall of the riveting section (13). The first cavity (17) is connected to the gap (22) and the channel (16).

4. The liquid-cooled terminal according to claim 3, characterized in that, Also includes: First through hole (18), a plurality of first through holes (18) are formed on the side wall of the riveting section (13) and are connected between the first cavity (17) and the gap (22).

5. The liquid-cooled terminal according to claim 4, characterized in that, Also includes: A locking nut (6) is threaded to the second end of the terminal (7). The liquid cooling tube (1) of the liquid cooling cable is sleeved on the second end of the terminal (7) and pressed against the second end of the terminal (7) by the locking nut (6).

6. The liquid-cooled terminal according to claim 1, characterized in that, The liquid inlet connector (8) includes: Mounting base (81) and step (87), wherein the mounting base (81) is connected to the coolant inlet end via a connector nut (9), and the step (87) is disposed within the mounting base (81); The valve core (82) has its first end in contact with the end face of the step (87), and its second end passes through the mounting base (81) and is threaded onto the side wall of the sleeve (5). The coolant inlet is connected in sequence to the mounting base (81), the valve core (82), and the first cavity (17).

7. The liquid-cooled terminal according to claim 6, characterized in that, The liquid inlet connector (8) also includes: The second cavity (85) is disposed between the inner wall of the mounting base (81) and the outer wall of the valve core (82); The second through hole (86) and multiple second through holes (86) are opened on the side wall of the valve core (82), and the cold liquid input end is connected in sequence to the second cavity (85), the second through hole (86) and the first cavity (17).

8. The liquid-cooled terminal according to claim 7, characterized in that, The liquid inlet connector (8) also includes: The third sealing ring (83) is sleeved on the first end of the valve core (82) and is sealed between the valve core (82) and the mounting base (81); The fourth sealing ring (84) is sleeved on the second end of the valve core (82). When the valve core (82) is threaded onto the side wall of the sleeve (5), the fourth sealing ring (84) abuts against the mounting base (81), the valve core (82) and the sleeve (5).

9. The liquid-cooled terminal according to claim 1, characterized in that, The first end of the terminal (7) is a spring end (19), and the outer side of the first end of the sleeve (5) is fitted with a second sealing ring (10).

10. The liquid-cooled terminal according to claim 1, characterized in that, The first end of the terminal (7) is the pin end (21).

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