Large-current charging seat liquid-cooled terminal

Abstract

A charging terminal is arranged in a jack of a charging seat, the charging terminal comprises an electric conductor, a cooling conduit and a wiring end, the electric conductor is formed into a cylindrical conductive structure by conductor materials, one end of the electric conductor is formed into a charging butt joint end, the other end of the electric conductor is connected with the wiring end, and the cooling conduit is connected with the wiring end. The terminal is connected with the wire, a cooling guide pipe is arranged outside the conductor in a surrounding mode, the cooling guide pipe is provided with a liquid flowing space, cooling liquid circulates in the cooling guide pipe, the conductor is located in the liquid flowing space, and heat of the conductor is taken away by the cooling liquid. The charging terminal is formed by respectively forming a plurality of components and then welding and combining the components, so that the liquid flowing space in the cooling conduit can be well formed, the heat conduction efficiency is improved, and some functional parts are reliably made of different materials, thereby being beneficial to improving the efficiency and saving the material cost.

Description

Technical Field

[0001] The utility model relates to an improvement on the conductive terminal structure in a charging seat, in particular to a liquid-cooled terminal in a high-current charging seat. Background Art

[0002] The high-current charging stand is an electrical device that adapts to fast charging methods. Its main feature is the use of large-diameter metal terminals and the combination of high-current charging protocols to effectively improve the charging power. Therefore, the current flux carried by the metal terminals is large and it is easy to heat up. If the heat cannot be effectively dissipated, the charging structure will be damaged and electrical safety problems will arise. Therefore, a cooling structure needs to be set for the metal terminals. The heat dissipation efficiency of the existing cooling structure is low, which is not conducive to improving charging efficiency, so it needs to be improved. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art and to provide a liquid-cooled terminal for a high-current charging station.

[0004] The technical solution adopted by the present invention to solve the above-mentioned problem is as follows: the charging terminal is disposed in the socket of the charging base, and the charging terminal includes a conductor, a cooling duct, and a terminal. The conductor is formed into a cylindrical conductive structure from a conductive material, one end of which is formed into a charging docking terminal, and the other end of the conductor is connected to the terminal, which is connected to the wire. A cooling duct is disposed around the outside of the conductor, and the cooling duct has a liquid flow space through which coolant flows. The conductor is located in the liquid flow space and heat is removed by the coolant. The charging terminal is constructed by forming multiple components separately and then welding them together. This can better shape the liquid flow space in the cooling duct, improve thermal conductivity, and some functional parts can be reliably made of different materials, which is conducive to improving efficiency and saving material costs.

[0005] Furthermore, the cooling duct is hollow, with the conductor embedded within it. A gap is formed between the cooling duct wall and the conductor, forming a liquid flow space surrounding the conductor. A water inlet and outlet are connected to the cooling duct, with coolant entering the liquid flow space through the inlet and exiting the liquid flow space through the outlet. The liquid flow space within the cooling duct allows for directional flow of coolant, improving heat exchange efficiency. It also facilitates the connection and layout of pipelines, facilitating centralized connection of cooling pipelines for multiple terminals and improving cooling efficiency.

[0006] Furthermore, the cooling conduit is welded to the conductor and watertightly encloses the liquid flow space. The water inlet and outlet are respectively located at both ends of the liquid flow space in the direction of flow. The water inlet and outlet are respectively located at both ends to ensure sufficient contact with the terminal surface passing through, improving heat dissipation efficiency and preventing heat backflow.

[0007] Furthermore, the water inlet and outlet are bent toward the terminal to form a spout, onto which a liquid pipe is sleeved. Both the liquid pipe and the coolant are made of insulating material. The spout can be quickly connected to the liquid pipe and has good sealing performance, facilitating installation and piping layout. The insulating material also improves electrical safety.

[0008] Furthermore, the terminal comprises a fixed body and a connection hole. The fixed body is inserted into the conductor and is welded to the cooling conduit. The outer end of the terminal is formed with a connection hole, which is threaded. The terminal can be connected to a wire through the connection hole, facilitating circuit installation and docking.

[0009] Furthermore, the outer surfaces of the cooling conduit and the terminal are provided with protruding fixing clips, which are embedded in the plastic material of the charging base. The cooling terminal needs to be fixed as a whole in the structure of the charging base, and the fixing clips are provided to form a structure surrounding the fixed structure, which is convenient for installation and positioning.

[0010] Compared with the existing technology, the present invention has the following advantages and effects: This design is an improvement on the terminal structure on the charging device, which can effectively improve the heat dissipation efficiency of the terminal, adapt to high-power and high-current charging methods, effectively adapt to a wide range of charging needs, and improve power efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the terminal.

[0012] Figure 2 It is a schematic diagram of the cross-sectional structure of the terminal.

[0013] In the figure: 1. Conductor, 2. Cooling duct, 3. Terminal, 4. Liquid flow space, 5. Water inlet, 6. Water outlet, 7. Water nozzle, 8. Fixed body, 9. Connection hole, 10. Fixing card, 11. Charging docking terminal. DETAILED DESCRIPTION

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and through examples. The following examples are provided to explain the present invention, but the present invention is not limited to the following examples.

[0015] A high-current charging station liquid-cooled terminal, the charging terminal is arranged in the socket of the charging station, and the charging terminal includes a conductor 1, a cooling conduit 2 and a terminal 3. The conductor 1 is formed into a cylindrical conductive structure by a conductive material, one end of which is formed into a charging docking terminal 11, and the other end of the conductor 1 is connected to the terminal 3, which is connected to the wire. The cooling conduit 2 is arranged around the outside of the conductor 1, and the cooling conduit 2 has a liquid flow space 4 and flows with coolant. The conductor 1 is located in the liquid flow space 4 and the heat is taken away by the coolant.

[0016] The cooling duct 2 is formed into a hollow structure, and the conductor 1 is embedded in the cooling duct 2. A gap is formed between the tube wall of the cooling duct 2 and the conductor 1. The gap is formed into a liquid flow space 4 surrounding the conductor 1. A water inlet 5 and a water outlet 6 are connected to the cooling duct 2. The coolant enters the liquid flow space 4 through the water inlet 5 and leaves the liquid flow space 4 through the water outlet 6.

[0017] The cooling conduit 2 is welded to the conductor 1 and watertightly closes the liquid flow space 4 . The water inlet 5 and the water outlet 6 are respectively arranged at two ends of the liquid flow space 4 in the flow direction.

[0018] The water inlet 5 and the water outlet 6 are both bent toward the terminal 3 to form a water nozzle 7 , and a liquid pipe is sleeved on the water nozzle 7 . The liquid pipe and the coolant are both made of insulating materials.

[0019] The terminal 3 is formed with a fixed body 8 and a connecting hole 9. The conductor 1 is inserted into the fixed body 8. The fixed body 8 is also welded and fixed to the cooling pipe 2. A connecting hole 9 is formed at the outer end of the terminal 3. The connecting hole 9 is provided with a thread.

[0020] The outer surfaces of the cooling conduit 2 and the terminal 3 are protruded with fixing clips 10 , which are embedded in the plastic material of the charging base.

[0021] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative rather than restrictive. The scope of the present invention is defined by the claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0022] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A liquid-cooled terminal for a high-current charging station, characterized by: The charging terminal is arranged in the socket of the charging seat, and the charging terminal includes a conductor (1), a cooling conduit (2) and a terminal (3). The conductor (1) is formed into a cylindrical conductive structure by a conductor material, one end of which is formed into a charging docking terminal (11). The other end of the conductor (1) is connected to the terminal (3), and the terminal (3) is connected to the wire. The cooling conduit (2) is arranged outside the conductor (1), and the cooling conduit (2) has a liquid flow space (4) and flows with cooling liquid. The conductor (1) is located in the liquid flow space (4) and the heat is taken away by the cooling liquid.

2. The high-current charging station liquid-cooled terminal according to claim 1, characterized in that: The cooling conduit (2) is formed into a hollow structure, the conductor (1) is embedded in the cooling conduit (2), a gap is formed between the tube wall of the cooling conduit (2) and the conductor (1), and the gap is formed into a liquid flow space (4) surrounding the conductor (1). A water inlet (5) and a water outlet (6) are connected to the cooling conduit (2), and cooling liquid enters the liquid flow space (4) through the water inlet (5) and leaves the liquid flow space (4) through the water outlet (6).

3. The high-current charging station liquid-cooled terminal according to claim 1, characterized in that: The cooling conduit (2) is welded to the conductor (1) and watertightly seals the liquid flow space (4); the water inlet (5) and the water outlet (6) are respectively arranged at both ends of the liquid flow space (4) in the flow direction.

4. The high-current charging station liquid-cooled terminal according to claim 1, characterized in that: The water inlet (5) and the water outlet (6) are both bent toward the connection terminal (3) to form a water nozzle (7), and a liquid pipe is sleeved on the water nozzle (7). The liquid pipe and the coolant are both made of insulating materials.

5. The high-current charging station liquid-cooled terminal according to claim 1, characterized in that: The terminal (3) is formed with a fixed body (8) and a connecting hole (9), a conductor (1) is inserted into the fixed body (8), and the fixed body (8) is also welded and fixed to the cooling conduit (2), and a connecting hole (9) is formed at the outer end of the terminal (3), and a thread is provided in the connecting hole (9).

6. The high-current charging station liquid-cooled terminal according to claim 1, characterized in that: The outer surfaces of the cooling conduit (2) and the wiring terminal (3) are protruded with fixing cards (10), and the fixing cards (10) are embedded in the plastic material of the charging base.

Images