Backflow type liquid cooling charging plug and charging gun
By designing a reflow liquid-cooled circuit in the plug of the liquid-cooled charging gun, the problem that liquid-cooled oil cannot circulate and take away heat, achieving better heat dissipation effect and service life.
Patent Information
- Application Number
- CN202421549885.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-02
AI Technical Summary
In the plug of the existing liquid-cooled charging gun, liquid-cooled oil cannot circulate within the gun head and cannot quickly take away heat, resulting in poor heat dissipation effect.
A reflow liquid-cooled charging plug is designed, and a liquid-cooled circuit is formed by setting up parts such as the first shunt tube, the second shunt tube, the tee and the oil inlet pipe to achieve the diversion and return of the liquid-cooled oil, and quickly take away the heat in the plug and cable.
It achieves better heat dissipation and cooling effect, can quickly take away heat and extend service life.
Smart Images
Figure CN222921396U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of charging guns, and particularly relates to a reflux type liquid-cooled charging plug and a charging gun. Background Art
[0002] With the continuous development of battery technology, the cruising range of new energy vehicles has been continuously improved. Currently, the cruising range of many models has reached more than 500 KM. The increase in cruising range also means that the charging time becomes longer. Therefore, higher requirements are placed on charging guns and their plugs. For example, the patent application No. 202322847057.2 discloses a liquid-cooled charging gun plug, which includes a plug housing and two DC terminals arranged in the plug housing. A cooling seat is provided at the rear end of the plug housing, and the cooling seat is provided with two independent cooling chambers. At least two cables are welded to the rear end of the DC terminal through a welding part. A rubber coating layer is provided at the welding part of the welding part and the cable and is placed in the cooling chamber of the cooling seat. A lining is provided at the rear end of the rubber coating layer, and the rear end of the cooling seat is covered with a rear cover. Two cover plates are provided at the rear end of the rear cover, and a liquid inlet pipe joint and a liquid outlet pipe joint are integrally formed on each cover plate; the rear end of the DC terminal is hermetically connected to the cooling seat through a first sealing ring, the rubber coating layer is hermetically connected to the lining through a second sealing ring, the rear cover is hermetically connected to the cooling chamber through a third sealing ring, and the cover plate is hermetically connected to the rear cover through a fourth sealing ring. This liquid-cooled charging gun plug can achieve liquid-cooled temperature reduction and heat dissipation. However, like other existing liquid-cooled heat dissipation plugs, there is a problem that the liquid-cooled oil cannot circulate in the gun head, and the heat cannot be quickly removed to achieve a better heat dissipation effect. Content of the Utility Model
[0003] The utility model aims to solve the deficiencies in the prior art and provides a reflux type liquid-cooled charging plug and a charging gun that can form a liquid-cooled loop and have good heat dissipation and temperature reduction effects.
[0004] To solve the above technical problems, the utility model adopts the following technical solutions:
[0005] The reflux type liquid-cooled charging plug includes:
[0006] A fixing member;
[0007] A first plug reflux liquid-cooled assembly arranged on one side of the fixing member. The first plug reflux liquid-cooled assembly includes a first shunt pipe, and the first shunt pipe is used for shunting and refluxing the liquid-cooled oil in the first plug reflux liquid-cooled assembly;
[0008] A second plug reflux liquid-cooled assembly arranged on the other side of the fixing member. The second plug reflux liquid-cooled assembly includes a second shunt pipe, and the second shunt pipe is used for shunting and refluxing the liquid-cooled oil in the second plug reflux liquid-cooled assembly; and
[0009] The oil inlet assembly is arranged on the fixing part and is respectively connected to the first plug return liquid cooling assembly and the second plug return liquid cooling assembly. The oil inlet assembly is used to provide liquid cooling oil for the connection between the first plug return liquid cooling assembly and the second plug return liquid cooling assembly, and the oil inlet assembly is respectively connected to the first shunt pipe and the second shunt pipe.
[0010] Preferably, a first baffle is provided in the middle and lower part of the first shunt pipe. The first baffle divides the upper and lower parts inside the first shunt pipe into a first flow channel and a second flow channel. A first through hole is provided on the outer wall of the first shunt pipe. The first shunt pipe is connected to the oil inlet assembly through the first through hole. The first through hole communicates with the first flow channel. At least one first oil return groove is provided on the outer wall of the first shunt pipe, and the first oil return groove communicates with the second flow channel.
[0011] Preferably, a second baffle is provided in the middle and lower part of the second shunt pipe. The second baffle divides the upper and lower parts inside the second shunt pipe into a third flow channel and a fourth flow channel. A second through hole is provided on the outer wall of the second shunt pipe. The second shunt pipe is connected to the oil inlet assembly through the second through hole. The second through hole communicates with the third flow channel. At least one second oil return groove is provided on the outer wall of the second shunt pipe, and the second oil return groove communicates with the fourth flow channel.
[0012] Preferably, the first plug return liquid cooling assembly further includes a first plug, a first cable, a first sealing jacket, a first silicone fastener, a first sealing silicone, and a first copper tube fixing part. The first plug is arranged inside the fixing part. The first shunt pipe is arranged inside the first plug. The first copper tube fixing part is hollow inside, and the upper and middle part of the first copper tube fixing part is arranged inside the first plug and is in contact connection with the lower end of the first shunt pipe. The middle and lower part of the first copper tube fixing part extends into the first cable. The upper end part of the first cable extends into the middle and lower part inside the first plug. The first sealing silicone is sleeved on the connection part between the first cable and the first plug. The first silicone fastener is sleeved on the first sealing silicone. The first sealing jacket is sleeved on the first silicone fastener. The oil inlet assembly passes through the first plug and is connected to the first shunt pipe.
[0013] Preferably, the second plug return liquid cooling assembly further includes a second plug, a second cable, a second sealing jacket, a second silicone fastener, a second sealing silicone, and a second copper tube fixing part. The second plug is arranged inside the fixing part. The second shunt pipe is arranged inside the second plug. The second copper tube fixing part is hollow inside, and the upper and middle part of the second copper tube fixing part is arranged inside the second plug and is in contact connection with the lower end of the second shunt pipe. The middle and lower part of the second copper tube fixing part extends into the second cable. The upper end part of the second cable extends into the middle and lower part inside the second plug. The second sealing silicone is sleeved on the connection part between the second cable and the second plug. The second silicone fastener is sleeved on the second sealing silicone. The second sealing jacket is sleeved on the second silicone fastener. The oil inlet assembly passes through the second plug and is connected to the second shunt pipe.
[0014] Preferably, the oil inlet assembly includes a tee and an oil inlet pipe. The oil inlet pipe is connected to the tee, and the tee is clamped on the outer wall of the fixing member. The tee passes through the left and right parts of the fixing member and is respectively connected to the first shunt pipe and the second shunt pipe. A sealing ring is provided between the connection of the tee and the fixing member.
[0015] Preferably, it further includes a fixing base and a gun head base. The fixing base is connected above the fixing member, and the gun head base is connected above the fixing base. The first plug and the second plug pass upward through the fixing base and extend into the gun head base.
[0016] The present utility model also discloses a charging gun, which includes the above-mentioned reflux type liquid-cooled charging plug.
[0017] Adopting the above technical solutions, the present utility model has the following beneficial effects:
[0018] By providing components such as the first shunt pipe, the second shunt pipe, the tee, and the oil inlet pipe, the present utility model can form a liquid-cooling circuit, which can quickly take away the heat in the first plug, the second plug, the first cable, and the second cable, and has a good heat dissipation and temperature reduction effect.
[0019] In summary, the present utility model has the advantages of being able to form a liquid-cooling circuit and having a good heat dissipation and temperature reduction effect. Description of the Drawings
[0020] Figure 1 is a structural schematic diagram of the present utility model;
[0021] Figure 2 is Figure 1 an exploded view of;
[0022] Figure 3 is a structural schematic diagram of the first shunt pipe of the present utility model;
[0023] Figure 4 is Figure 3 a structural schematic diagram in another direction. Detailed Embodiments
[0024] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model.
[0025] The components of the embodiments of the present utility model usually described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model.
[0026] Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0027] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0029] Embodiment 1
[0030] In this embodiment, a reflux type liquid-cooled charging plug and charging gun are proposed. It can form a liquid-cooling loop, which can take away the overall heat, has a good heat dissipation and cooling effect, and a longer service life.
[0031] As Figures 1-4 shown, in an embodiment of the present utility model, the reflux type liquid-cooled charging plug of the present utility model includes a fixing member 1, a first plug reflux liquid-cooling component, a second plug reflux liquid-cooling component, and an oil inlet component. Among them, the first plug reflux liquid-cooling component is arranged on one side of the fixing member 1. The first plug reflux liquid-cooling component includes a first shunt pipe 2, and the first shunt pipe 2 is used for the shunt and reflux of the liquid-cooling oil in the first plug reflux liquid-cooling component. The second plug reflux liquid-cooling component is arranged on the other side of the fixing member 1. The second plug reflux liquid-cooling component includes a second shunt pipe 3, and the second shunt pipe 3 is used for the shunt and reflux of the liquid-cooling oil in the second plug reflux liquid-cooling component. The oil inlet component is arranged on the fixing member 1 and is respectively connected to the first plug reflux liquid-cooling component and the second plug reflux liquid-cooling component. The oil inlet component is used to provide liquid-cooling oil for the connection between the first plug reflux liquid-cooling component and the second plug reflux liquid-cooling component. The oil inlet component is respectively connected to the first shunt pipe 2 and the second shunt pipe 3. Specifically, Figure 1Among them, the first plug return liquid cooling component is located on the left side of the second plug return liquid cooling component. The present utility model may specifically further include a fixing base 4 and a gun head base 5. The fixing base 4 is connected above the fixing member 1, and the gun head base 5 is connected above the fixing base 4. The upper parts of the first plug return liquid cooling component and the second plug return liquid cooling component penetrate through the fixing base 4 and extend into the gun head base 5. A number of other terminals are also provided on the fixing base 4 and the gun head base 5, which can be set accordingly according to requirements;
[0032] Specifically refer to Figure 1 and Figure 2 , the oil inlet component of the present utility model includes a three-way member 6 and an oil inlet pipe 7. The oil inlet pipe 7 is connected to the three-way member 6. The three-way member 6 is clamped on the outer wall of the fixing member 1. The three-way member 6 passes through the left and right parts of the fixing member 1 and is respectively connected to the first shunt pipe 2 and the second shunt pipe 3. A sealing ring is provided between the connection of the three-way member 6 and the fixing member 1, specifically Figure 1 as the standard. A clamping member 8 is provided on the front side of the fixing member 1, and the three-way member 6 is detachably connected to the front side of the fixing member 1;
[0033] Please continue to refer to Figure 2 , the structures of the first shunt pipe 2 and the second shunt pipe 3 of the present utility model are basically the same. Among them, a first baffle 9 is provided in the middle and lower part of the first shunt pipe 2. The first baffle 9 divides the upper and lower parts inside the first shunt pipe 2 into a first flow channel and a second flow channel. A first through hole 10 is provided on the outer wall of the first shunt pipe 2. The first shunt pipe 2 is connected to the oil inlet component through the first through hole 10. The first through hole 10 communicates with the first flow channel. At least one first oil return groove 11 is provided on the outer wall of the first shunt pipe 2. The first oil return groove 11 communicates with the second flow channel. A second baffle is provided in the middle and lower part of the second shunt pipe 3. The second baffle divides the upper and lower parts inside the second shunt pipe 3 into a third flow channel and a fourth flow channel. A second through hole 12 is provided on the outer wall of the second shunt pipe 3. The second shunt pipe 3 is connected to the oil inlet component through the second through hole 12. The second through hole 12 communicates with the third flow channel. At least one second oil return groove is provided on the outer wall of the second shunt pipe 3. The second oil return groove communicates with the fourth flow channel. A temperature controller is also provided on the fixing member of the present utility model;
[0034] The first plug reflux liquid cooling assembly of the utility model also includes a first plug 13, a first cable 14, a first sealing sleeve 15, a first silicone fastener 16, a first sealing silicone 17 and a first copper tube fixing member 18. The first plug 13 is arranged in the fixing member 1, and the first shunt pipe 2 is arranged in the first plug 13. The first copper tube fixing member 18 is hollow inside and the middle and upper part of the first copper tube fixing member 18 is arranged in the first plug 13 and is in contact with the lower end of the first shunt pipe 2. The middle and lower part of the first copper tube fixing member 18 extends into the first cable 14, and the upper end of the first cable 14 extends into the middle and lower part of the first plug 13. The first sealing silicone 17 is sleeved at the connection between the first cable 14 and the first plug 13, the first silicone fastener 16 is sleeved on the first sealing silicone 17, the first sealing sleeve 15 is sleeved on the first silicone fastener 16, and the oil inlet assembly passes through the first plug 13 and is connected to the first shunt pipe 2 That is, the tee piece 6 passes through the first plug 13 and is connected to the first shunt pipe 2. The first plug 13 passes upward through the fixing seat 4 and extends into the gun head seat 5. A spiral metal tube is arranged in the first cable 14 of the utility model. The outer side of the metal tube can be the specific structure of the cable. The inner side of the metal tube is communicated with the first shunt pipe 2 so that liquid cooling oil can flow through it, thereby forming a liquid cooling oil circuit. The liquid cooling oil can not only take away the heat in the first plug 13, but also take away the heat in the first cable 14. Specifically, the liquid cooling oil enters the oil inlet pipe 7, and the liquid cooling oil reaches the tee piece 6 and then reaches the first flow channel of the first shunt pipe 2, and then flows into the outer side of the first shunt pipe 2 in the first plug 13, and then passes through the first oil return groove 11 into the second flow channel, and then flows through the first copper tube fixing piece 18 and finally flows into the spiral metal tube of the first cable 14. This is the flow direction of the entire liquid cooling oil, and the heat is taken away according to this flow direction.
[0035] Similarly, the second plug return liquid cooling assembly of the present utility model further includes a second plug 19, a second cable 20, a second sealing jacket 21, a second silicone fastener 22, a second sealing silicone 23, and a second copper tube fixing member 24. The second plug 19 is arranged in the fixing member 1, the second shunt tube 3 is arranged in the second plug 19, the inside of the second copper tube fixing member 24 is hollow, and the upper middle part of the second copper tube fixing member 24 is arranged in the second plug 19 and is in contact connection with the lower end of the second shunt tube 3. The lower middle part of the second copper tube fixing member 24 extends into the second cable 20, the upper end part of the second cable 20 extends into the lower middle part of the second plug 19. The second sealing silicone 23 is sleeved on the connection part of the second cable 20 and the second plug 19, the second silicone fastener 22 is sleeved on the second sealing silicone 23, the second sealing jacket 21 is sleeved on the second silicone fastener 22. The oil inlet assembly passes through the second plug 19 and is connected to the second shunt tube 3, that is, the tee 6 passes through the second plug 19 and is connected to the second shunt tube 3. The second plug 19 passes upward through the fixing seat 4 and extends into the gun head seat 5. A spiral metal tube is arranged in the second cable 20 of the present utility model. The outer side of the metal tube can be the specific structure of the cable. The inside of the metal tube is communicated with the second shunt tube 3 so that the liquid cooling oil can flow through, and thus a liquid cooling oil loop is formed. The liquid cooling oil can not only take away the heat in the second plug 19, but also take away the heat in the second cable 20. Specifically, the liquid cooling oil enters through the oil inlet pipe 7, reaches the tee 6 and then reaches the third flow channel of the second shunt tube 3, then flows into the outside of the second shunt tube 3 in the second plug 19, then enters the fourth second flow channel through the second oil return groove, then flows through the second copper tube fixing member 24 and finally flows into the spiral metal tube of the second cable 20. This is the entire flow direction of the liquid cooling oil, and heat is taken away according to this flow direction. Both the first shunt tube 2 and the second shunt tube 3 of the present utility model are provided with convex parts and can be respectively clamped in the first plug 13 and the second plug 19 through the convex parts. Anti-touch caps are provided at the upper ends of the first plug 13 and the second plug 19.
[0036] The present utility model also discloses a charging gun, including the above-mentioned return liquid cooling charging plug.
[0037] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model all belong to the protection scope of the technical solution of the present utility model.
Claims
1. Reflux liquid-cooled charging plug, characterized by ,include: Fixings; A first plug return liquid cooling assembly is arranged on one side of the fixing member, and the first plug return liquid cooling assembly includes a first shunt pipe, and the first shunt pipe is used for shunting and returning the liquid cooling oil in the first plug return liquid cooling assembly; A second plug return liquid cooling assembly is arranged on the other side of the fixing member, and the second plug return liquid cooling assembly includes a second shunt pipe, and the second shunt pipe is used for the shunt and return of the liquid cooling oil in the second plug return liquid cooling assembly; as well as The oil inlet assembly is arranged on the fixing part and is respectively connected to the first plug return liquid cooling assembly and the second plug return liquid cooling assembly. The oil inlet assembly is used to provide liquid cooling oil for the first plug return liquid cooling assembly and the second plug return liquid cooling assembly. The oil inlet assembly is respectively connected to the first shunt pipe and the second shunt pipe.
2. The reflux liquid-cooled charging plug according to claim 1, characterized in that: A first baffle is provided in the lower middle portion of the first diverter pipe, the first baffle divides the first diverter pipe into a first flow channel and a second flow channel from top to bottom, a first through hole is provided on the outer wall of the first diverter pipe, the first diverter pipe is connected to the oil inlet assembly through the first through hole, the first through hole is communicated with the first flow channel, at least one first oil return groove is provided on the outer wall of the first diverter pipe, the first oil return groove is communicated with the second flow channel.
3. The reflux liquid-cooled charging plug according to claim 2, characterized in that: A second baffle is provided in the middle and lower part of the second diversion pipe, and the second baffle divides the second diversion pipe into a third flow channel and a fourth flow channel from top to bottom. A second through hole is provided on the outer wall of the second diversion pipe, and the second diversion pipe is connected to the oil inlet assembly through the second through hole, and the second through hole is communicated with the third flow channel. At least one second oil return groove is provided on the outer wall of the second diversion pipe, and the second oil return groove is communicated with the fourth flow channel.
4. The reflux liquid-cooled charging plug according to claim 3, characterized in that: The first plug return liquid cooling component also includes a first plug, a first cable, a first sealing sleeve, a first silicone fastener, a first sealing silicone and a first copper tube fixing member. The first plug is arranged in the fixing member, and the first shunt pipe is arranged in the first plug. The first copper tube fixing member is hollow inside and the upper and middle parts of the first copper tube fixing member are arranged in the first plug and are abutted against the lower end of the first shunt pipe. The lower and middle parts of the first copper tube fixing member extend into the first cable, and the upper end of the first cable extends into the lower and middle part of the first plug. The first sealing silicone sleeve is arranged at the connection between the first cable and the first plug, the first silicone fastener is sleeved on the first sealing silicone, the first sealing sleeve is sleeved on the first silicone fastener, and the oil inlet assembly passes through the first plug and is connected to the first shunt pipe.
5. The reflux liquid-cooled charging plug according to claim 4, characterized in that: The second plug reflux liquid cooling component also includes a second plug, a second cable, a second sealing sleeve, a second silicone fastener, a second sealing silicone and a second copper tube fixing member. The second plug is arranged in the fixing member, and the second shunt pipe is arranged in the second plug. The second copper tube fixing member is hollow inside and the middle and upper part of the second copper tube fixing member is arranged in the second plug and is in contact with the lower end of the second shunt pipe. The middle and lower part of the second copper tube fixing member extends into the second cable, and the upper end of the second cable extends into the middle and lower part of the second plug. The second sealing silicone sleeve is arranged at the connection between the second cable and the second plug, the second silicone fastener is sleeved on the second sealing silicone, the second sealing sleeve is sleeved on the second silicone fastener, and the oil inlet assembly passes through the second plug and is connected to the second shunt pipe.
6. The reflux liquid-cooled charging plug according to claim 5, characterized in that: The oil inlet assembly includes a tee and an oil inlet pipe, the oil inlet pipe is connected to the tee, the tee is clamped on the outer wall of the fixing part, the tee passes through the left and right parts of the fixing part and is respectively connected to the first diversion pipe and the second diversion pipe, and a sealing ring is provided between the connection between the tee and the fixing part.
7. The reflow type liquid cooling charging plug according to claim 5, characterized in that: It also includes a fixing seat and a gun head seat, wherein the fixing seat is connected above the fixing piece, and the gun head seat is connected above the fixing seat, and the first plug and the second plug pass upward through the fixing seat and extend into the gun head seat.
8. Charging gun, characterized by: It comprises the reflow type liquid-cooled charging plug as described in any one of claims 1 to 7.
Citation Information
Patent Citations
A liquid-cooled charging gun plug
CN220963813U