Joint structure between water-based liquid cooling circulation charging pile and cable

Abstract

The utility model discloses a joint structure between a water-based liquid cooling circulation charging pile and a cable. The joint structure is used for connecting a water pipe (2) of the charging pile and the cable (3) through which cooling liquid can pass. The connector structure is characterized in that the connector structure comprises a connector body (1) made of a conductor material, a power connection part (13) is arranged on the connector body (1), the connector body (1) is provided with an axial through hole (14), one axial end of the connector body (1) is a first end (11) in butt joint with the water pipe (2), and the other axial end of the connector body (1) is a second end (12) in butt joint with the cable (3); moreover, a first end (11) of the joint body (1) extends to form a terminal plate (112), and the terminal plate (112) is inserted into an inner cavity of the water pipe (2); and a conductor (31) of the cable (3) is inserted from the second end (12), passes through the axial through hole (14), penetrates out of the first end (11) and is welded with the terminal plate (112) so as to be electrically connected with the terminal plate (112).

Description

Technical Field

[0001] This utility model relates to the field of charging piles for new energy electric vehicles, specifically to a joint structure between a water-based liquid-cooled circulating charging pile and a cable. Background Technology

[0002] With the rapid development and popularization of electric vehicles, electric vehicle charging technology has also advanced rapidly, from the initial low-power AC charging to high-power DC fast charging, significantly shortening charging time. Global charging piles are becoming increasingly widespread, the construction of supercharging stations is accelerating, and smart charging and new charging interface technologies are constantly innovating.

[0003] In the design of electric vehicle charging technology, the importance of cooling cannot be ignored, and the design and maintenance of the cooling system must be fully considered. Currently, the most advanced technology is liquid-cooled charging, which uses a dedicated liquid circulation channel between the cable and the charging gun to circulate coolant and remove the heat generated during charging, thereby improving charging efficiency and speed. Specifically, coolant from the water tank is pumped to the inlet end of the liquid-cooled cable. The coolant carries away the heat generated in the wires within the liquid-cooled cable, changing the temperature from cold to hot. The hot water then exits from the outlet end of the liquid-cooled cable into the cooling system, where it is forcibly cooled before flowing back to the water tank, thus forming a cooling cycle. For example, the solution used by OEMs such as Huawei, which is derived from Tesla V3, is an indirect cooling solution. It uses a cable to connect two approximately 6mm coolant pipes inside the cable, forming a loop at the end of the charging gun. In this design, the coolant does not directly contact the conductor, so it can only remove some heat from the conductor's insulation surface. The coolant does not reach the charging gun, and the high temperature caused by the contact resistance between the charging gun's terminals and the conductor cannot be cooled.

[0004] If coolant can be directly introduced into the conductor of the cable, the cooling effect will be greatly improved. This requires a cold circulation system for coolant treatment to be installed in the charging pile. Since the electricity is an external power source, a connector that can introduce both electricity and water into the charging gun cable is needed at the charging pile connection point. Summary of the Invention

[0005] The purpose of this invention is to provide a connector structure between a water-based liquid-cooled circulating charging pile and a cable, enabling the introduction of coolant and electricity.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a connector structure between a water-based liquid-cooled circulating charging pile and a cable, wherein the connector structure is used to connect the water pipe of the charging pile and the cable capable of carrying coolant; the connector structure includes a connector body made of conductor material, the connector body is provided with an electrical contact part, and the connector body has an axial through hole, one end of which is a first end that connects with the water pipe, and the other end of which is a second end that connects with the cable; furthermore, a terminal plate extends from the first end of the connector body, and the terminal plate is inserted into the inner cavity of the water pipe; the conductor of the cable is inserted from the second end, passes through the axial through hole, exits from the first end, and is welded to the terminal plate for electrical connection.

[0007] In the above scheme, the electrical connection part is formed by opening wiring holes on a plate-shaped body that extends integrally from the outer periphery of the connector body outward.

[0008] In the above scheme, a circumferential first protrusion ring is provided on the outer periphery of the first end, so that the first end can be inserted into the port of the water pipe and snapped in place.

[0009] In the above scheme, a second circumferential protrusion is provided on the outer periphery of the second end, so that the second end can be inserted into the insulating sheath port of the cable for locking.

[0010] Furthermore, the outer periphery of the first end is a tapered portion facing the water pipe. The outer periphery of the second end is a tapered portion facing the cable.

[0011] This utility model has a simple and reliable structure, enabling simultaneous access to electricity and water via the cable, thus meeting the charging technology requirements of existing water-based liquid-cooled circulating charging piles.

[0012] The terms "first," "second," etc., used in this article do not specifically refer to order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0013] The terms "connection" or "positioning" as used in this article can refer to two or more components or devices making direct physical contact with each other, or making indirect physical contact with each other, or to two or more components or devices operating or moving with each other.

[0014] The terms “include,” “including,” and “have” used in this article are all open-ended, meaning they include but are not limited to.

[0015] Unless otherwise specified, the terms used herein generally have their ordinary meaning in the context of the art, the subject matter, and the specific context. Certain terms used to describe this case will be discussed below or elsewhere in this specification to provide additional guidance to those skilled in the art in describing the case.

[0016] The terms “front,” “back,” “up,” “down,” “left,” and “right” used in this article are directional terms. In this case, they are only used to describe the positional relationship between the structures and are not intended to limit the specific direction of the protection scheme or its actual implementation.

[0017] The working principle and advantages of this utility model are as follows:

[0018] This invention modifies the structure of the sealing components to achieve sealing on both the inner and outer sides of the roller cone drill bit structure using various sealing components. This not only increases the contact area of ​​the metal sealing surface but also isolates the functional ring (i.e., the energy storage ring) from the outside, effectively extending the service life of the roller cone drill bit. Attached Figure Description

[0019] Figure 1 This is a front view schematic diagram of the connector body according to an embodiment of the present utility model;

[0020] Figure 2 for Figure 1 A diagram showing the view from below;

[0021] Figure 3 for Figure 1 A diagram showing the view from the right.

[0022] Figure 4 This is an overall schematic diagram of the connector structure according to an embodiment of the present invention. The arrows in the diagram represent the flow direction of the coolant.

[0023] In the above image:

[0024] 1. Connector body; 11. First end; 111. First protruding ring; 112. Terminal plate; 12. Second end; 121. First protruding ring; 13. Electrical connection part; 131. Plate-shaped body; 132. Wiring hole; 14. Axial through hole;

[0025] 2. Water pipes;

[0026] 3. Cable 31. Conductor. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0028] Example: The present invention will be clearly described below with illustrations and detailed description. Any person skilled in the art who understands the examples of the present invention can make changes and modifications based on the technology taught in the present invention without departing from the spirit and scope of the present invention.

[0029] The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the scope of this work. Singular forms such as “a,” “this,” “this,” “the,” and “the” as used herein also include plural forms.

[0030] This embodiment presents a connector structure between a water-based liquid-cooled circulating charging pile and a cable, used to connect the water pipe 2 of the charging pile and the cable 3 capable of carrying coolant. The cable 3 capable of carrying coolant can be a type IV liquid-cooled cable for electric vehicle charging. Figure 4 The image shows only one main power line portion of cable 3 (with an outer insulating sheath and an inner conductor 31).

[0031] See Figures 1-4 As shown, the connector structure includes a connector body 1 made of a conductor material, preferably copper. The connector body 1 has an electrical contact part 13 on its outer periphery, and the connector body 1 has an axial through hole 14. One end of the hole is a first end 11 that connects to the water pipe 2, and the other end of the hole is a second end 12 that connects to the cable 3.

[0032] See Figures 1-4 As shown, a terminal plate 112 extends from the first end 11 of the connector body 1 and is inserted into the inner cavity of the water pipe 2; the conductor 31 of the cable 3 is inserted from the second end 12, passes through the axial through hole 14, and exits from the first end 11 to be welded to the terminal plate 112 for electrical connection.

[0033] See Figures 1-4 As shown, the terminal block 112 is a plate-like structure on which conductors are stacked and then electrically connected by welding, preferably using ultrasonic welding. In practice, the terminal block 112 can also be equipped with raised and recessed structures to facilitate a more reliable electrical connection.

[0034] See Figures 1-4 As shown, the power receiving part 13 is formed by opening a wiring hole 132 on a plate-shaped body 131 that extends integrally outward from the outer periphery of the connector body 1, so that the cable of the external power supply can be connected to it to conduct electricity.

[0035] In practice, the electrical connection part 13 can be located on the outer circumference of the connector body 1 in either radial or axial directions, and its function is to facilitate the connection of the connector body to electricity.

[0036] See Figures 1-4 As shown, the first end 11 has a circumferential first protruding ring 111 on its outer periphery, so that the first end 11 can be inserted into the port of the water pipe 2 for locking. The second end 12 has a circumferential second protruding ring 121 on its outer periphery, so that the second end 12 can be inserted into the port of the insulation sheath of the cable 3 for locking.

[0037] The outer periphery of the first end 11 is tapered toward the water pipe 2, and the outer periphery of the second end 12 is tapered toward the cable 3, so as to facilitate insertion into the ports of the water pipe 2 and the cable 3 for connection.

[0038] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A connector structure between a water-based liquid-cooled circulating charging pile and a cable, the connector structure being used to connect the water pipe (2) of the charging pile and the cable (3) capable of carrying coolant; characterized in that: The connector structure includes a connector body (1) made of conductive material, which has an electrical contact part (13) and an axial through hole (14). One end of the axial hole is a first end (11) that is connected to the water pipe (2), and the other end of the axial hole is a second end (12) that is connected to the cable (3). Furthermore, a terminal plate (112) extends from the first end (11) of the connector body (1), and the terminal plate (112) is inserted into the inner cavity of the water pipe (2); the conductor (31) of the cable (3) is inserted from the second end (12), passes through the axial through hole (14), and exits from the first end (11) to be welded to the terminal plate (112) for electrical connection.

2. The joint structure between the water-based liquid-cooled circulating charging pile and the cable according to claim 1, characterized in that: The electrical receiving part (13) is formed by opening a wiring hole (132) on a plate-shaped body (131) that extends integrally from the outer periphery of the connector body (1) outward.

3. The joint structure between the water-based liquid-cooled circulating charging pile and the cable according to claim 1, characterized in that: The first end (11) has a circumferential first protruding ring (111) on its outer periphery, so that the first end (11) can be inserted into the port of the water pipe (2) and snapped in place.

4. The joint structure between the water-based liquid-cooled circulating charging pile and the cable according to claim 1, characterized in that: The second end (12) has a circumferential second protrusion (121) on its outer periphery, so that the second end (12) can be inserted into the insulating sheath port of the cable (3) for locking.

5. The joint structure between the water-based liquid-cooled circulating charging pile and the cable according to claim 3 or 4, characterized in that: The outer periphery of the first end (11) is a tapered portion facing the water pipe (2).

6. The joint structure between the water-based liquid-cooled circulating charging pile and the cable according to claim 3 or 4, characterized in that: The outer periphery of the second end (12) is a tapered portion facing the cable (3).

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