A new energy vehicle connector

Abstract

The present invention relates to the technical field of charging guns, and specifically provides a new energy vehicle connector, including a plug, a heat exchange structure is arranged on one side of the plug, the heat exchange structure includes a sleeve, a heat conductive ring is arranged on the end surface of the sleeve, a first heat dissipation ring is rotatably arranged on the heat conductive ring, a second heat dissipation ring is rotatably arranged on the sleeve, an annular accommodating cylinder is also arranged in the sleeve, the heat conductive ring, the first heat dissipation ring and the second heat dissipation ring are hollow inside, and form a closed loop with the annular accommodating cylinder, the closed loop is filled with coolant, an eccentric baffle is arranged in the second heat dissipation ring, the coolant circulates in the closed loop to impact the eccentric baffle, the eccentric baffle is deflected, and then the coolant drives the second heat dissipation ring to rotate, the heat exchange structure is arranged on the charging gun, can efficiently dissipate the heat generated by the charging gun, and has a good heat dissipation effect.

Description

Technical Field

[0001] The present invention relates to the technical field of charging guns, and in particular to a new energy vehicle connector. Background Art

[0002] Connectors are essential basic components in electronic devices, mechanical systems and industrial equipment. They are used to achieve electrical, optical, fluid, mechanical and other types of connection and separation. Their main function is to ensure that the circuit or system maintains a reliable connection during signal transmission and power transfer. With the continuous advancement of science and technology and the rapid development of industries such as electronics, automobiles, and communications, connector technology is also constantly upgrading and diversifying to meet increasingly complex application needs.

[0003] The connector needs to be specially customized according to its working environment during use. If the heat dissipation performance of the connector is considered in high-temperature scenes, the sealing performance of the connector needs to be considered in seawater scenes, etc. Chinese patent CN110416777A discloses a liquid-cooled charging connector, including an outer shell, a high-voltage terminal and a wire. The high-voltage terminal is arranged in the cavity of the outer shell and one end thereof passes through the cavity for charging. The wire portion passes into the cavity and is crimped with the high-voltage terminal to form a crimping area. The crimping area formed by the high-voltage terminal and the wire is in the cavity of the outer shell. After the thermal conductive glue is poured in the cavity, the thermal conductive glue covers the crimping area, which can fix the irregular crimping area of ​​the high-voltage terminal and the wire, so that the crimping area can get good contact, increase the thermal contact area of ​​the crimping area, and better heat dissipation during charging.

[0004] However, relying solely on contact heat dissipation cannot be applied to higher-power charging guns and summer environments, and the heat dissipation effect is poor. Summary of the invention

[0005] Based on this, it is necessary to provide a new energy vehicle connector to address the problem of poor heat dissipation of the terminal part of the current charging gun when charging.

[0006] The above purpose is achieved through the following technical solutions:

[0007] A new energy vehicle connector, comprising:

[0008] A plug, which is used to connect to a charging port of a new energy vehicle;

[0009] A heat exchange structure, the heat exchange structure is located at one side of the plug, the heat exchange structure comprises a sleeve, an annular accommodating cylinder is arranged in the sleeve, and a coolant is contained in the annular accommodating cylinder;

[0010] A heat-conducting ring, which is arranged on the end surface of the sleeve and has heat-dissipating fins distributed along its radial direction;

[0011] A first heat dissipation ring, wherein the first heat dissipation ring is arranged on the heat conductive ring, and heat dissipation fins are distributed along the radial direction on the outer peripheral surface of the first heat dissipation ring;

[0012] A second heat dissipation ring, the second heat dissipation ring is rotatably disposed on the sleeve, and heat dissipation fins are distributed along the radial direction on the outer peripheral surface of the second heat dissipation ring;

[0013] The heat-conducting ring, the first heat-dissipating ring and the second heat-dissipating ring are hollow inside and are connected to each other, and the heat-conducting ring, the first heat-dissipating ring and the second heat-dissipating ring are connected to the annular accommodating cylinder;

[0014] An eccentric baffle is located in the second heat dissipation ring. When the coolant flows, it impacts the eccentric baffle. The eccentric baffle rotates to change the flow direction of the coolant. The coolant drives the second heat dissipation ring to rotate so that the heat dissipation fins rotate.

[0015] Furthermore, the heat-conducting ring, the first heat dissipating ring and the second heat dissipating ring are all arranged in pairs and are symmetrical about the center position of the sleeve axis.

[0016] Furthermore, a dust cover is arranged outside the heat exchange structure, and a plurality of sieve holes are opened on both end surfaces of the dust cover.

[0017] Furthermore, when the heat exchange structure is not working, the first heat dissipation ring and the second heat dissipation ring are in contact, and the fins of the first heat dissipation ring and the second heat dissipation ring are staggered so that no air enters the dust cover; when the heat exchange structure is working, the first heat dissipation ring and the second heat dissipation ring are away from each other, and the first heat dissipation ring and the second heat dissipation ring rotate to allow air to circulate in the dust cover.

[0018] Furthermore, a groove distributed along its axial direction is provided on the outer circumferential surface of the sleeve, and a protrusion is provided on the inner circumferential surface of the second heat dissipation ring. When the second heat dissipation ring contacts the second heat dissipation ring, the protrusion is located in the groove, and the heat dissipation fins of the second heat dissipation ring and the first heat dissipation ring are staggered and relatively stationary; when the first heat dissipation ring and the second heat dissipation ring move away from each other, the protrusion is separated from the groove.

[0019] Furthermore, the first heat dissipation ring and the second heat dissipation ring change their rotation direction after a preset time.

[0020] Furthermore, a water pump is provided in the annular containing cylinder, and the water pump changes the flow direction of the coolant. The rotation axis positions of the eccentric baffles in the two second heat dissipation rings are set oppositely. When the coolant changes the flow direction to impact the eccentric baffles, the deflection directions of the two eccentric baffles are the same, and the coolant drives the second heat dissipation rings to rotate in opposite directions.

[0021] Furthermore, the two second heat dissipation rings move synchronously through a synchronization component, which includes a connecting block and a telescopic rod. The connecting block is rotatably set on the sleeve, and the fixed end of the telescopic rod is connected to the connecting block. Articulated rods are set on both sides of the telescopic end of the telescopic rod. The articulated rods are hinged to the two second heat dissipation rings, and the two second heat dissipation rings move synchronously when the telescopic end of the telescopic rod is extended and retracted.

[0022] Furthermore, the two ends of the eccentric baffle are divided into a long end and a short end, and the long end can be telescopic.

[0023] Furthermore, a handle is connected to the other side of the heat exchange structure.

[0024] The beneficial effects of the present invention are:

[0025] The present invention arranges a first heat dissipation ring, a second heat dissipation ring and a circulating coolant so that the heat exchange structure can adapt to heat dissipation at different temperatures. At the same time, the second heat dissipation ring is driven to rotate when the coolant circulates, and the heat dissipation fins of the second heat dissipation ring rotate to allow air to flow, which can efficiently dissipate heat and greatly improve the heat dissipation effect of the heat exchange structure. The heat exchange structure is applied to the charging gun, which can effectively solve the problem of high heat generation and poor heat dissipation effect of the charging gun, and make the temperature of the charging gun more stable during charging.

[0026] The present invention increases the contact area between the heat exchange structure and the hot air by arranging a pair of heat-conducting rings, a first heat dissipation ring and a second heat dissipation ring, and at the same time increases the speed of air circulation, further improving the heat dissipation effect.

[0027] The present invention staggers the heat dissipation fins of the first heat dissipation ring and the second heat dissipation ring so that when the heat exchange structure is not working, the heat dissipation fins of the first heat dissipation ring and the second heat dissipation ring are staggered with each other to prevent the dust cover from being blocked due to air circulation. When the heat exchange structure is working, the synchronous rotation of the first heat dissipation ring and the second heat dissipation ring discharges the hot air in the dust cover, thereby improving the heat dissipation efficiency.

[0028] The present invention also prevents the sieve holes on the two end surfaces of the dust cover from being blocked by periodically changing the rotation directions of the first heat dissipation ring and the second heat dissipation ring, thereby preventing the air flow in the dust cover from being reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a new energy vehicle connector provided by an embodiment of the present invention;

[0030] Figure 2 for Figure 1 A front view of a new energy vehicle connector provided by an embodiment;

[0031] Figure 3 for Figure 2 A cross-sectional view of a new energy vehicle connector along AA provided by an embodiment;

[0032] Figure 4 An exploded view of a new energy vehicle connector provided by an embodiment of the present invention;

[0033] Figure 5 An exploded view of a heat exchange structure of a new energy vehicle connector provided by an embodiment of the present invention;

[0034] Figure 6 An exploded view of a heat exchange structure of a new energy vehicle connector provided by an embodiment of the present invention without a first heat dissipation ring, a heat conduction ring and a sealing ring;

[0035] Figure 7 A schematic diagram of another angle of the heat exchange structure of the new energy vehicle connector provided by one embodiment of the present invention without the first heat dissipation ring, the heat conduction ring and the sealing ring;

[0036] Figure 8 for Figure 7 An enlarged view of a heat exchange structure Z portion of a new energy vehicle connector provided in an embodiment;

[0037] Fig. 9 A schematic diagram of the internal structure of one of the two second heat dissipation rings of the heat exchange structure of the new energy vehicle connector provided by one embodiment of the present invention;

[0038] Fig.10 A schematic diagram of the internal structure of another second heat dissipation ring of the two second heat dissipation rings of the heat exchange structure of the new energy vehicle connector provided by one embodiment of the present invention;

[0039] Fig.11 for Fig. 9 Enlarged view of the middle X section;

[0040] Fig.12 for Fig.10 Enlarged view of the Y section;

[0041] Fig.13 A schematic structural diagram of a sleeve of a heat exchange structure of a new energy vehicle connector provided by an embodiment of the present invention;

[0042] Fig.14 A schematic structural diagram of a synchronization component of a heat exchange structure of a new energy vehicle connector provided in one embodiment of the present invention.

[0043] in:

[0044] 100, plug; 110, handle; 120, dust cover;

[0045] 200. Heat exchange structure;

[0046] 210, sleeve; 211, limit strip; 212, annular strip; 220, annular receiving tube; 230, heat conducting ring; 240, sealing ring; 241, through groove;

[0047] 300, first heat dissipation ring; 301, connecting pipe; 302, connecting port; 310, second heat dissipation ring; 311, first through hole; 312, second through hole; 313, protrusion;

[0048] 400, eccentric baffle; 410, rotating shaft; 420, rotating ring;

[0049] 500, synchronization component; 510, connection block; 511, slide groove; 520, telescopic rod; 530, rectangular tube. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0051] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in the present invention, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0052] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0053] Refer to the following Figure 1-Figure 14To describe a new energy vehicle connector provided by the present invention, which is suitable for heat dissipation scenarios, including a plug 100, the plug 100 is used to connect to the charging port of a new energy vehicle, a heat exchange structure 200 is provided on one side of the plug 100, the heat exchange structure 200 is used to dissipate heat, and the heat exchange structure 200 includes a sleeve 210, an annular accommodating cylinder 220 is provided inside the sleeve 210, and the annular accommodating cylinder 220 contains coolant, and the annular accommodating cylinder 220 can be sleeved on a structure that needs heat dissipation. A heat-conducting ring 230 is provided on the end face of the sleeve 210, and a first heat dissipating ring 300 is sleeved on the heat-conducting ring 230, and a second heat dissipating ring 310 is rotatably provided on the outer circumference of the sleeve 210, and heat dissipating fins distributed along the radial direction are provided on the inner circumference of the heat-conducting ring 230, the outer circumference of the first heat dissipating ring 300, and the outer circumference of the second heat dissipating ring 310, and the heat dissipating fins are all hollow, such as Figure 5 As shown, the first heat dissipation ring 300 and the heat conductive ring 230 are sealed by a sealing ring 240, and a plurality of through grooves 241 are provided on the end surface of the sealing ring 240, and a first through hole 311 is provided on the end surface of the second heat dissipation ring 310 close to the first heat dissipation ring 300, and a second through hole 312 is provided on the end surface of the second heat dissipation ring 310 away from the first heat dissipation ring 300, the through grooves 241 and the first through holes 311 are connected through a connecting pipe 301, and the second through holes 312 are connected to the annular containing tube 220 through a pipe, and a connecting port 302 is provided on each heat dissipation fin of the heat conductive ring 230, and the connecting port 302 is connected to the pipe, and the other ends of all the pipes are connected to the annular containing tube 220, thereby forming a closed loop, that is, the heat conductive ring 230, the first heat dissipation ring 300, the second heat dissipation ring 310 and the annular containing tube 220 are connected through the pipe to form a closed loop.

[0054] The closed loop is filled with coolant, and a water pump is provided in the annular containing tube 220. When the water pump is started, the coolant can flow in the closed loop. The specific flow direction of the coolant is as follows: from the annular containing tube 220 to the heat conductive ring 230, then from the heat conductive ring 230 to the first heat dissipation ring 300, then from the first heat dissipation ring 300 to the second heat dissipation ring 310, and finally back to the annular containing tube 220, forming a circulation of the coolant.

[0055] The first through holes 311 are arranged in a circumferential array on the end face of the second heat dissipation ring 310 close to the first heat dissipation ring 300, and the second through holes 312 are arranged in a circumferential array on the other end face of the second heat dissipation ring 310. The diameters of the first through holes 311 and the second through holes 312 are the same, but the positions of the first through holes 311 and the second through holes 312 are staggered. An eccentric baffle 400 is arranged in the second heat dissipation ring 310. The eccentric baffle 400 is close to the first through hole 311, and between two adjacent second through holes 312, the rotation axis 410 of the eccentric baffle 400 is arranged on one side close to the first through hole 311, that is, the rotation axis 410 of the eccentric baffle 400 is not arranged in the middle of the first through hole 311, but is offset, such as Fig.12 As shown, in this embodiment, the rotating shaft 410 is arranged at one end close to the left side, and the length of the right side of the eccentric baffle 400 is longer than the length of the left side with the rotating shaft 410 as the dividing line. When the coolant flows through the first through hole 311, the coolant impacts the eccentric baffle 400, and the eccentric baffle 400 changes from a parallel state to a deflected state, that is, the eccentric baffle 400 rotates clockwise with the rotating shaft 410 as the center when viewed from top to bottom, and the short end of the eccentric baffle 400 abuts against the wall surface to stop the eccentric baffle 400 from rotating, and the coolant impacts the inclined eccentric baffle 400 and flows through the second through hole 312.

[0056] It is understandable that after the eccentric baffle 400 is impacted by the coolant, the flow direction will be deflected and thus drive the entire second heat dissipation ring 310 to rotate. Fig.12 As shown, the second heat dissipation ring 310 rotates counterclockwise, and the second heat dissipation ring 310 is connected to the sealing ring 240 on the first heat dissipation ring 300 through the connecting pipe 301. The sealing ring 240 is rotatably arranged between the first heat dissipation ring 300 and the heat conducting ring 230, and is a dynamic seal, so the second heat dissipation ring 310 does not drive the first heat dissipation ring 300 to rotate synchronously, but makes the sealing ring 240 rotate synchronously. The heat dissipation fins of the second heat dissipation ring 310 are arranged obliquely, and when rotating, they can make the air flow similar to a fan, thereby dissipating the heat to the outside, and improving the heat dissipation efficiency.

[0057] It should be noted that the water pump is started after the temperature exceeds a preset value (the preset value refers to the critical point where the temperature still rises when the heat dissipation effect is poor when the second heat dissipation ring 310 is not rotating). In other words, the heat exchange structure 200 of the present invention has a multi-stage heat dissipation effect. During the first stage of heat dissipation, the first heat dissipation ring 300 and the second heat dissipation ring 310 are stationary, and the heat dissipation fins on the inner circumference of the heat conductive ring 230 transfer the heat to the heat dissipation fins of the first heat dissipation ring 300 and the second heat dissipation ring 310 for heat dissipation, and the coolant can also absorb most of the heat; during the second stage of heat dissipation, the water pump is started, and the coolant begins to circulate. When the coolant flows, it impacts the eccentric baffle 400 in the second heat dissipation ring 310, thereby driving the second heat dissipation ring 310 to rotate, and then discharges the heat to the outside, with a good heat dissipation effect, which is suitable for heat dissipation at high temperatures.

[0058] By providing a first heat dissipation ring 300, a second heat dissipation ring 310 and a coolant, multi-stage heat dissipation is formed, so that the heat exchange structure 200 can adapt to heat dissipation at different temperatures. At the same time, the second heat dissipation ring 310 is driven to rotate when the coolant circulates, and the heat dissipation fins of the second heat dissipation ring 310 rotate to allow air to flow, which can efficiently dissipate heat and greatly improve the heat dissipation effect of the heat exchange structure 200. The heat exchange structure 200 can be applied to a charging gun, thereby effectively solving the problem of high heat generation and poor heat dissipation effect of the charging gun, and making the temperature of the charging gun more stable during charging.

[0059] In a further embodiment, Figure 5 As shown, two heat-conducting rings 230, two first heat-dissipating rings 300 and two second heat-dissipating rings 310 are each provided, and are symmetrically arranged in pairs, that is, the heat-conducting rings 230, the first heat-dissipating rings 300 and the second heat-dissipating rings 310 are symmetrical about the central position of the axis of the sleeve 210, and the coolant flows in the two heat-conducting rings 230, the two first heat-dissipating rings 300 and the two second heat-dissipating rings 310. By arranging them in pairs, the heat dissipation area is increased. At the same time, the rotation of the two second heat-dissipating rings 310 can increase the flow speed of the air, further increasing the heat dissipation efficiency, and can reduce the temperature in a shorter time.

[0060] In a further embodiment, a dust cover 120 is disposed outside the entire heat exchange structure 200, and the dust cover 120 is cylindrical. Figure 1 As shown, a plurality of sieve holes are provided on the two end surfaces of the dust cover 120, and the sieve holes are used to prevent dust and / or impurities from entering the dust cover 120. If the first heat dissipation ring 300 and the second heat dissipation ring 310 are rotated in one direction all the time, a large amount of dust and impurities will be adsorbed on one end surface of the dust cover 120, and in serious cases, the sieve holes will be blocked, affecting the heat dissipation effect. In this embodiment, the rotation direction of the first heat dissipation ring 300 and the second heat dissipation ring 310 is changed regularly to avoid the above situation.

[0061] Specifically, after a preset time (the preset time can be limited according to specific circumstances, for example, a longer time can be set if the air quality is poor, and a shorter time can be set otherwise, which is not specifically limited here), the water pumping direction in the annular accommodating tube 220 is changed to change the rotation direction of the second heat dissipation ring 310, thereby avoiding blockage of the external dust cover 120 caused by air flowing in the same direction for a long time. After the rotation direction is changed, the air flow direction is opposite, and the dust cover 120 can be backblown, thereby causing dust or other impurities on the dust cover 120 to fall off.

[0062] It can be understood that after the water pump in the annular receiving tube 220 changes the pumping direction, the flow direction of the coolant in the closed loop also changes. The two second heat dissipation rings 310 are symmetrically arranged, but the positions of the rotating shafts 410 of the internal eccentric baffles 400 are opposite. Fig.12 As shown, the rotating shaft 410 in the second heat dissipation ring 310 is close to the left side of the first through hole 311, so that the length of the right side of the eccentric baffle 400 is longer than the length of the left side. When the coolant enters through the first through hole 311 of the second heat dissipation ring 310, the coolant impacts on the eccentric baffle 400, and the eccentric baffle 400 deflects clockwise from top to bottom with the rotating shaft 410 as the center, and the coolant drives the second heat dissipation ring 310 to rotate counterclockwise; on the contrary, Fig.11 As shown, the rotating shaft 410 in the other second heat dissipation ring 310 is close to the first through hole 311 ( Fig.11 The position of the first through hole 311 is not shown in the figure. The first through hole 311 is staggered with the two second through holes 312, that is, from the perspective of the figure, it can be inferred that the position of the first through hole 311 is on the right side between the two second through holes 312), so that the length of the left side of the eccentric baffle 400 is longer than the length of the right side. When the coolant impacts the eccentric baffle 400, the eccentric baffle 400 deflects clockwise from top to bottom with the rotating shaft 410 as the center, and the coolant drives the second heat dissipation ring 310 to rotate clockwise. When the coolant enters from the second through hole 312 of one second heat dissipation ring 310 to the second through hole 312 of another second heat dissipation ring 310, and then passes through the first through hole 311 from the second through hole 312, the coolant will not directly impact the surface of the eccentric baffle 400 when entering from the second through hole 312, so that the eccentric baffle 400 is in a parallel state and does not affect the flow of the coolant.

[0063] It should be noted that the water pump can be set to pump water in the forward direction for a period of time and then pump water in the reverse direction, and then pump water in the reverse direction for a period of time and then pump water in the forward direction. The time for forward pumping and reverse pumping are the same, and thus the time for air flow in two directions is the same, and the backwash time on both sides of the dust cover 120 is the same. In other words, the cleaning time of the dust cover 120 is the same, so that the cleaning effect of the dust cover 120 is good.

[0064] In a further embodiment, the second heat dissipation ring 310 is in contact with the first heat dissipation ring 300 in an initial state, and the heat dissipation fins of the first heat dissipation ring 300 and the second heat dissipation ring 310 are staggered. When the heat exchange structure 200 has not started working, the heat dissipation fins of the two first heat dissipation rings 300 and the two second heat dissipation rings 310 are staggered to prevent air flow, thereby preventing dust and impurities from accumulating on the dust cover 120 and affecting the heat dissipation effect.

[0065] Specifically, in the present embodiment, a limiting strip 211 extending axially along the sleeve 210 is provided on the outer circumferential surface of the sleeve 210, and there are a plurality of limiting strips 211 which are evenly distributed along the circumference of the sleeve 210, and a groove is formed between every two adjacent limiting strips 211. A protrusion 313 is provided on the inner circumferential surface of the second heat dissipation ring 310, and the protrusion 313 of the second heat dissipation ring 310 is located in the groove, and the second heat dissipation ring 310 is restricted from circumferential rotation. At this time, the second heat dissipation ring 310 and the first heat dissipation ring 300 are close to and in contact with each other, and the positions of the heat dissipation fins of the second heat dissipation ring 310 and the first heat dissipation ring 300 are just staggered, and air cannot pass between two adjacent heat dissipation fins.

[0066] When the temperature reaches the preset value and ordinary heat dissipation is not enough to meet the heat dissipation demand, the water pump is started, and the coolant flows in the closed loop so that the second heat dissipation ring 310 has a tendency to rotate. Since the protrusion 313 on the inner circumference of the second heat dissipation ring 310 is in the groove, the second heat dissipation ring 310 is restricted from rotating, but the second heat dissipation ring 310 can move along its axial direction on the sleeve 210. Since the eccentric baffle 400 is at the first through hole 311, the coolant will be subjected to the force of the coolant when passing through the eccentric baffle 400, that is, the coolant pushes the second heat dissipation ring 310 to move along the axial direction of the sleeve 210. The limiting strips 211 are not all set on the outer circumference of the sleeve 210, but an annular strip 212 is set in the middle of the outer circumference of the sleeve 210. Figure 7 and Fig.14 As shown, the two end faces of the annular strip 212 are not connected to the plurality of limit strips 211, but are at a certain distance, where an annular groove is formed. When the protrusion 313 of the second heat dissipation ring 310 is separated from the groove, it will enter the annular groove. At this time, the second heat dissipation ring 310 can rotate driven by the coolant, and the other second heat dissipation ring 310 moves synchronously with the second heat dissipation ring 310 through the synchronization component 500.

[0067] In this embodiment, the connecting tube 301 is retractable. When the second heat dissipation ring 310 moves on the sleeve 210 in the axial direction away from the first heat dissipation ring 300 , the connecting tube 301 is extended.

[0068] Specifically, the synchronization assembly 500 includes a connection block 510 and a telescopic rod 520. Figure 8 and Fig.14As shown, a slide groove 511 is provided at the bottom of the connecting block 510, and the slide groove 511 of the connecting block 510 cooperates with the annular strip 212 on the sleeve 210, that is, the slide groove 511 of the connecting block 510 is located on the annular strip 212, and through holes are provided on both sides of the connecting block 510, two through holes, the two through holes are connected, and a retractable rectangular tube 530 is provided on the through holes, and the rectangular tube 530 connects the second through holes 312 of the two second heat dissipation rings 310, so as to Figure 8 As shown, the rectangular tube 530 on the left is connected to the second through hole 312 of the second heat dissipation ring 310 on the left, and the rectangular tube 530 on the right is connected to the second through hole 312 of the second heat dissipation ring 310 on the right, so that the coolant in the second heat dissipation ring 310 on the left enters the second heat dissipation ring 310 on the right through the through hole. The fixed end of the telescopic rod 520 is fixedly connected to the top of the connection block 510, and hinge rods are arranged on the left and right sides of the telescopic end of the telescopic rod 520, and a hinge shaft is arranged above the second through holes 312 of the two second heat dissipation rings 310, and the other end of the hinge rod is connected to the hinge shaft. A tension spring is arranged inside the telescopic rod 520, and the tension spring makes the telescopic end of the telescopic rod 520 always in a shortened state, so the hinge rods on both sides of the telescopic end push the two second heat dissipation rings 310 away from each other, so that the two second heat dissipation rings 310 are respectively in contact with the first heat dissipation ring 300 to block air circulation.

[0069] When the water pump is started, the coolant flows in the closed loop, thereby pushing the second heat dissipation ring 310 to separate from the first heat dissipation ring 300. The second heat dissipation ring 310 pushes the hinged rod, causing the telescopic end of the telescopic rod 520 to extend. The extension of the telescopic end of the telescopic rod 520 drives the other hinged rod to move, thereby causing the other second heat dissipation ring 310 to move synchronously in a direction close to each other. When the protrusions 313 on the two second heat dissipation rings 310 are out of the grooves, the two second heat dissipation rings 310 rotate synchronously, thereby causing air to flow and increasing heat dissipation efficiency.

[0070] It should be noted that the synchronization component 500 is not limited to the structure in this embodiment, and other structures that can achieve synchronous movement of the two second heat dissipation rings 310 are also possible, and no specific limitation is made here.

[0071] In a further embodiment, the long end of the eccentric baffle 400 can be telescopic, so that when the short end of the eccentric baffle 400 abuts against the wall, the long end of the eccentric baffle 400 can also abut against another wall, so that the end of the eccentric baffle 400 farther from the rotating shaft 410 has a telescopic end. Fig.11 and Fig.12As shown, that is to say, the longer end of the eccentric baffle 400 has a telescopic end, and a hinge rod is provided on the telescopic end, and a rotating ring 420 is sleeved on the rotating shaft 410, and a thread groove is provided on the inner circumference of the rotating ring 420, and a thread is provided on a part of the rotating shaft 410 that contacts the rotating ring 420, and the rotating ring 420 and the rotating shaft 410 are threadedly connected, and the outer circumference of the rotating ring 420 is hinged to the other end of the hinge rod. When the eccentric baffle 400 is impacted by the coolant and rotates around the rotating shaft 410, the rotating ring 420 is driven to rotate with the eccentric baffle 400 The rotating ring 420 is rotated step by step, and the rotating ring 420 descends axially on the rotating shaft 410 during rotation, so that the hinge rod pushes the telescopic end to extend, so that the length of the long end of the eccentric baffle 400 increases, and the long end of the eccentric baffle 400 can abut the wall surface to form a complete inclined surface. When the coolant impacts the eccentric baffle 400, the force of the coolant can act entirely on the eccentric baffle 400, so that the coolant can more directly drive the rotation of the second heat dissipation ring 310, so that the rotation speed of the second heat dissipation ring 310 is increased, and the heat dissipation effect is further improved.

[0072] In a further embodiment, the other side of the heat exchange structure 200 is connected to a handle 110 , and the handle 110 is convenient for a user to hold.

[0073] For the convenience of connection, the dust cover 120 of the heat exchange structure 200 is connected to the handle 110 , and the other end of the dust cover 120 is connected to the plug 100 .

[0074] The specific working process of the new energy vehicle connector provided by the present invention is described below in combination with the above embodiments:

[0075] During the use of the charging gun, especially a high-power charging gun, a lot of heat is generated and needs to be dissipated in time.

[0076] When not in use:

[0077] When the charging gun is not in a charging state, the first heat dissipation ring 300 and the second heat dissipation ring 310 of the heat exchange structure 200 are in contact with each other, and the heat dissipation fins of the first heat dissipation ring 300 and the second heat dissipation ring 310 are staggered to prevent air circulation, so that the internal space is sealed, which can effectively reduce the accumulation of dust and impurities on the dust cover 120, so that the charging gun can be used without cleaning the dust cover 120 first.

[0078] First level heat dissipation:

[0079] When the charging gun is first used, the heat generated is relatively small, and the first heat dissipation ring 300 and the second heat dissipation ring 310 of the heat exchange structure 200 are close to each other, and the heat dissipation fins of the thermally conductive ring 230 are arranged on the inner circumferential surface of the thermally conductive ring 230. The heat dissipation fins of the thermally conductive ring 230 have a larger contact area with the hot air inside the charging gun, which facilitates heat transfer. At the same time, the thermally conductive ring 230, the first heat dissipation ring 300 and the second heat dissipation ring 310 are hollow inside and filled with coolant to further absorb the heat generated by the charging gun.

[0080] Secondary heat dissipation:

[0081] As the charging gun is used for a longer time, the heat generated is relatively large, and the first-level heat dissipation is not enough to meet the heat dissipation requirements. At this time, the water pump in the annular container 220 is started, so that the coolant begins to circulate. The flow direction of the coolant is Figure 3 As shown, the coolant flows through the heat conductive ring 230 on the left and then enters the first heat dissipation ring 300 on the left, and then enters the second heat dissipation ring 310. When the coolant enters the second heat dissipation ring 310, it passes through the first through hole 311. An eccentric baffle 400 is provided in the second heat dissipation ring 310 near the first through hole 311. When the coolant enters, it will impact the eccentric baffle 400, and the eccentric baffle 400 rotates around the rotating shaft 410. At the same time, the longer end of the eccentric baffle 400 extends under the action of the rotating ring 420, and then guides the coolant to the second through hole 312. The second through hole 312 and the first through hole 311 are staggered. Therefore, at this time, after cooling through the second heat dissipation ring 310 on the left, the second heat dissipation ring 310 will have a tendency to rotate. The protrusion 313 on the inner circumference of the second heat dissipation ring 310 is located in the groove, and the second heat dissipation ring 310 is restricted from rotating. However, the coolant pushes the second heat dissipation ring 310 on the left to move away from the first heat dissipation ring 300. At the same time, the second heat dissipation ring 310 on the right moves in the same direction under the action of the synchronization component 500, that is, the two second heat dissipation rings 310 approach each other. When the protrusions 313 of the two second heat dissipation rings 310 are out of the groove, the two second heat dissipation rings 310 drive the two first heat dissipation rings 300 to start rotating synchronously. The heat dissipation fins on the first heat dissipation ring 300 and the second heat dissipation ring 310 are tilted, similar to fan blades, so that air can flow during rotation, and then dissipate heat to the outside, so that the temperature inside the charging gun is reduced.

[0082] After the water pump in the annular receiving tube 220 pumps water in the forward direction for a period of time, it pumps water in the reverse direction. Figure 3As shown, the flow direction of the coolant enters from the heat conductive ring 230 on the right side to the first heat dissipation ring 300 on the right side, and then enters the second heat dissipation ring 310 on the right side. The coolant enters through the first through hole 311 of the second heat dissipation ring 310 on the right side. An eccentric baffle 400 is also provided in the second heat dissipation ring 310 on the right side. The eccentric baffle 400 is arranged opposite to the position of the rotating shaft 410 of the eccentric baffle 400 in the second heat dissipation ring 310 on the left side. The coolant can drive the second heat dissipation ring 310 to rotate in the opposite direction, that is, the two second heat dissipation rings 310 rotate in the opposite direction synchronously. The air flows in opposite directions, and dust or impurities on the dust cover 120 can be blown back, thereby avoiding the phenomenon that the dust cover 120 is blocked due to the heat dissipation in the same direction all the time, which affects the heat dissipation effect. The dust cover 120 can be blown back regularly in two directions to prevent blockage, so that the heat dissipation efficiency is always maintained at a high level.

[0083] When charging is finished:

[0084] After the charging gun is fully charged, the heat will gradually dissipate. When the temperature is lower than the preset value, the water pump stops working, the coolant stops flowing, the two second heat dissipation rings 310 lose the drive of the coolant, and the telescopic end of the telescopic rod 520 shortens under the action of the tension spring. The hinged rods on both sides of the telescopic end push the two second heat dissipation rings 310 away from each other, and the protrusions 313 of the two second heat dissipation rings 310 re-enter the grooves. The two second heat dissipation rings 310 are respectively in contact with the two first heat dissipation rings 300, and the heat dissipation fins of the first heat dissipation ring 300 and the second heat dissipation ring 310 are still staggered, thereby preventing the flow of air.

[0085] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0086] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A new energy vehicle connector, characterized in that: include: A plug, which is used to connect to a charging port of a new energy vehicle; A heat exchange structure, the heat exchange structure is located at one side of the plug, the heat exchange structure comprises a sleeve, an annular accommodating cylinder is arranged in the sleeve, and a coolant is contained in the annular accommodating cylinder; A heat-conducting ring, which is arranged on the end surface of the sleeve and has heat-dissipating fins distributed along its radial direction; A first heat dissipation ring, wherein the first heat dissipation ring is arranged on the heat conductive ring, and heat dissipation fins are distributed along the radial direction on the outer peripheral surface of the first heat dissipation ring; A second heat dissipation ring, the second heat dissipation ring is rotatably disposed on the sleeve, and heat dissipation fins are distributed along the radial direction on the outer peripheral surface of the second heat dissipation ring; The heat-conducting ring, the first heat-dissipating ring and the second heat-dissipating ring are hollow inside and are connected to each other, and the heat-conducting ring, the first heat-dissipating ring and the second heat-dissipating ring are connected to the annular accommodating cylinder; An eccentric baffle is located in the second heat dissipation ring. When the coolant flows, it impacts the eccentric baffle. The eccentric baffle rotates to change the flow direction of the coolant. The coolant drives the second heat dissipation ring to rotate so that the heat dissipation fins rotate.

2. The new energy vehicle connector according to claim 1, characterized in that: The heat-conducting ring, the first heat dissipating ring and the second heat dissipating ring are all arranged in pairs and are symmetrical about the central position of the sleeve axis.

3. The new energy vehicle connector according to claim 1, characterized in that: A dust cover is arranged outside the heat exchange structure, and a plurality of sieve holes are opened on both end surfaces of the dust cover.

4. The new energy vehicle connector according to claim 3, characterized in that: When the heat exchange structure is not working, the first heat dissipation ring is in contact with the second heat dissipation ring, and the fins of the first heat dissipation ring and the second heat dissipation ring are staggered so that no air enters the dust cover; when the heat exchange structure is working, the first heat dissipation ring and the second heat dissipation ring are away from each other, and the first heat dissipation ring and the second heat dissipation ring rotate to allow air to circulate in the dust cover.

5. The new energy vehicle connector according to claim 4, characterized in that: The outer circumferential surface of the sleeve is provided with grooves distributed along its axial direction, and the inner circumferential surface of the second heat dissipation ring is provided with a protrusion. When the second heat dissipation ring contacts the first heat dissipation ring, the protrusion is located in the groove, and the heat dissipation fins of the second heat dissipation ring and the first heat dissipation ring are staggered and relatively stationary; when the first heat dissipation ring and the second heat dissipation ring move away from each other, the protrusion is separated from the groove.

6. The new energy vehicle connector according to claim 5, characterized in that: The first heat dissipation ring and the second heat dissipation ring change their rotation directions after a preset time.

7. The new energy vehicle connector according to claim 6, characterized in that: A water pump is arranged in the annular containing cylinder, and the water pump changes the flow direction of the coolant. The rotation axis positions of the eccentric baffles in the two second heat dissipation rings are set in opposite directions. When the coolant changes the flow direction to impact the eccentric baffles, the deflection directions of the two eccentric baffles are the same, and the coolant drives the second heat dissipation rings to rotate in opposite directions.

8. The new energy vehicle connector according to claim 2, characterized in that: The two second heat dissipation rings move synchronously through a synchronization component, which includes a connecting block and a telescopic rod. The connecting block is rotatably set on the sleeve, and the fixed end of the telescopic rod is connected to the connecting block. Articulated rods are set on both sides of the telescopic end of the telescopic rod. The articulated rods are hinged to the two second heat dissipation rings. When the telescopic end of the telescopic rod is extended or retracted, the two second heat dissipation rings move synchronously.

9. The new energy vehicle connector according to claim 1, characterized in that: The two ends of the eccentric baffle are divided into a long end and a short end, and the long end can be telescopic.

10. The new energy vehicle connector according to claim 1, characterized in that: The other side of the heat exchange structure is connected with a handle.

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