Integrated liquid cooling box charging seat for new energy automobile

Abstract

The utility model discloses an integrated liquid cooling box charging seat for a new energy automobile. The new energy automobile integrated liquid cooling box charging base comprises a liquid cooling box which is connected into a base shell and made of an integrated heat conduction material, the liquid cooling box is located in front of a switching copper bar, the liquid cooling box is provided with two power sleeves and a liquid cooling groove integrally wrapping the two power sleeves, the liquid cooling groove is divided into a plurality of cooling channels through a plurality of fins, and the cooling channels are communicated with the switching copper bar. The cover plate is positioned and attached to the outer wall of the power sleeve and hermetically attached to the inner wall of the port of the liquid cooling tank; a heat-conducting silica gel gasket is attached to the outer side of the cover plate; the inner end of a switching copper bar connected with a power cable is in threaded connection with a power terminal, and a heat-conducting silica gel gasket is attached to the front side face of the switching copper bar. And heat generated by the switching copper bar and the power terminal is conducted to the cooling liquid in the liquid cooling groove for heat dissipation. The LED lamp has an integrated heat dissipation structure, is simple and convenient to install, has a good heat dissipation effect of the fin-type liquid cooling groove, and achieves the effects of rapid, efficient and safe charging and long service life of equipment.

Description

Technical Field

[0001] The utility model relates to the field of new energy vehicle charging seats, in particular to a new energy vehicle integrated liquid cooling box charging seat. Background Art

[0002] With the country's policy support for new energy, new energy vehicles are developing rapidly. New energy vehicles require efficient, fast and safe charging. In order to shorten the charging time of electric vehicles, the existing fast charging technology adopts high-power charging (such as fast DC charging). The connection between the charging gun and the power terminal of the charging station will generate a lot of heat. Its defects are: First, the resistance of the DC power terminal of the charging station is positively correlated with the temperature rise. Continuous heat will affect the performance of the terminal and thus reduce the charging speed; second, the temperature of electronic components continues to rise, which may cause the equipment to overheat and cause electrical components to fail. In severe cases, it may even burn, posing a potential safety risk and affecting charging safety; third, the electronic components in the charging station are continuously used in a high-temperature state, the equipment frequently stops, and it is difficult to operate stably, resulting in low charging efficiency and affecting the service life of parts in the long run. Utility Model Content

[0003] In order to solve one or more of the above problems, the present invention provides an integrated liquid cooling box charging stand for new energy vehicles.

[0004] According to one aspect of the present invention, the new energy vehicle integrated liquid cooling box charging station includes:

[0005] The liquid cooling box, made of heat-conducting material, is connected to the base shell and located in front of the transfer copper bar. The lower rear end of the vertical base plate is vertically provided with two power sleeves and a liquid cooling tank that surrounds the two power sleeves. The liquid cooling tank is divided into several cooling channels by a number of fins. Two inlets and outlets connecting the cooling channels are provided on the wall of the liquid cooling tank. The inlets and outlets are connected to the coolant circuit through water pipes.

[0006] The cover plate is positioned to fit the outer wall of the power sleeve and seals against the inner wall of the liquid cooling tank port. A thermal conductive silicone gasket is attached to the outer side of the cover plate.

[0007] A power terminal, the front end of which is located inside the front end of the base shell and the rear end of which is connected to the power bushing;

[0008] The outer end of the copper busbar is connected to the power cable, and the inner end is connected to the end shaft hole of the power terminal through a screw. A thermal conductive silicone gasket is attached to the front side of the copper busbar.

[0009] The heat generated by the transfer copper bus is transferred to the coolant in the liquid cooling tank through the thermally conductive silicone gasket and cover plate, and the heat generated by the power terminal is transferred to the coolant in the liquid cooling tank through the power sleeve, thereby achieving heat dissipation of both.

[0010] In some embodiments, the connection between the liquid cooling tank and the cover plate is laser welded.

[0011] In some embodiments, the outer wall of the cover plate and the rear end surface of the liquid cooling tank are located in the same plane, and the inner wall of the cover plate is flush with the outer end surface of the fin.

[0012] In some embodiments, the liquid inlet and outlet are threadedly connected to a water nozzle, which is connected to a cooling liquid circuit through a water pipe; or the power cable is a liquid-cooled wire, and the water pipe is connected to the cooling liquid hole of the liquid-cooled wire.

[0013] In some embodiments, the wall panels of the liquid cooling tank are thick pressure-resistant plates, and the fins are thin guide plates.

[0014] In some embodiments, the lower end of the cooling channel is directly connected to the liquid inlet and outlet and is parallel to each other.

[0015] In some embodiments, the two side end cavities of the liquid cooling tank surround both sides of the upper power sleeve, the longitudinal connection cavity is located between the two power sleeves, the side end cavity is provided with a plurality of equally spaced vertical first fins, and the longitudinal connection cavity is provided with longitudinal second fins.

[0016] In some embodiments, the lower end of a side end cavity is connected to the liquid increasing cavity, the first fin enters the liquid increasing cavity, and a plurality of third fins are provided at equal intervals on both sides of the first fin.

[0017] In some embodiments, the third fin is an arc-shaped fin, and the lower end of the arc-shaped fin is vertical.

[0018] In some embodiments, the seat shell includes a panel shell and a rear cover shell whose four corners are connected by screws, and the base plate is screwed behind the panel shell.

[0019] The integrated liquid cooling box charging station for new energy vehicles is suitable for charging stations with a rear cable side outlet structure; its beneficial effects are: first, an integrated liquid cooling box made of heat-conducting material is provided in the charging station, and the liquid cooling box continuously cools the heat-generating components, copper busbars, and power terminals in the charging station at the same time, with rapid and efficient cooling, so that the power terminals are at the optimal charging temperature for a long time, thereby maintaining the best charging performance, while avoiding the failure of electronic components caused by high temperature and potential safety risks, with high safety, the equipment can operate stably for a long time, and achieves fast, efficient and safe charging, while the equipment has a long life; second, the integrated The liquid cooling box has a simple structure, can reduce the number of parts and installation procedures, is easy to assemble, has high assembly efficiency, and effectively reduces costs; thirdly, fins are provided in the liquid cooling tank, and several cooling channels are formed by the fins, which has a better natural convection heat transfer coefficient and increases the heat dissipation area, can dissipate heat more efficiently and quickly, and ensure the fast, efficient and safe charging of the charging stand; fourthly, the thermal conductive silicone gasket is convenient for connecting the transfer copper busbars and the cover plate on both sides, and it has efficient thermal conductivity and can achieve good cooling function; fifthly, the cover plate is positioned by the power sleeve, which has a simple structure and is convenient for the installation of the cover plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of an integrated liquid cooling box charging station for a new energy vehicle according to one embodiment of the present utility model;

[0021] Figure 2 for Figure 1 The three-dimensional exploded schematic diagram of the integrated liquid cooling box charging station for new energy vehicles is shown;

[0022] Figure 3 for Figure 2 The three-dimensional schematic diagram of the integrated liquid cooling box charging station for new energy vehicles without the station shell is shown;

[0023] Figure 4 for Figure 3 A three-dimensional schematic diagram of the liquid cooling box and the cover;

[0024] Liquid cooling box 1, fin 10, first fin 101, second fin 102, third fin 103, base plate 11, liquid cooling tank 12, cooling channel 120, side end cavity 121, longitudinal connection cavity 122, liquid increase cavity 123, power bushing 13, liquid inlet and outlet 14, low-pressure bushing 15;

[0025] Cover plate 2; power terminal 3; copper busbar 4; power cable 5; thermal conductive silicone gasket 6; faucet 7; water pipe 8;

[0026] Seat shell 01, panel shell 010, back cover shell 011, tail cover 012, maintenance cover 013. DETAILED DESCRIPTION

[0027] The present invention will be described in further detail below with reference to the accompanying drawings. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, and the terms "inward" and "outward" refer to directions toward or away from the geometric center of a particular component, respectively.

[0028] Figures 1 to 4 The figure schematically shows an integrated liquid cooling box charging seat for new energy vehicles according to an embodiment of the present invention. As shown in the figure, the integrated liquid cooling box charging seat for new energy vehicles is characterized in that it includes: a liquid cooling box 1, the liquid cooling box 1 made of heat-conducting material is connected to the seat shell 01 and is located in front of the transfer copper bus 4, and the material of the liquid cooling box 1 is preferably PPS or PPA with good heat conductivity and high insulation; the rear lower end of the vertical base plate 11 of the liquid cooling box 1 is vertically provided with two power sleeves 13 and a liquid cooling tank 12 that surrounds the two power sleeves 13, the liquid cooling tank 12 is divided into a plurality of cooling channels 120 by a plurality of fins 10, and the wall of the liquid cooling tank 12 is provided with two liquid inlets and outlets 14 connected to the cooling channels 120, and the liquid inlet and outlet 14 are connected to the cooling liquid circuit through the water pipe 8;

[0029] The cover plate 2 is positioned to fit the outer wall of the power sleeve 13 and seals against the inner wall of the end of the liquid cooling tank 12. The connection between the liquid cooling tank 12 and the cover plate 2 is preferably laser welded.

[0030] A thermally conductive silicone gasket 6 is attached to the outer side of the cover plate 2 .

[0031] The power terminal 3 has its front end located inside the front end of the base housing 01 and its rear end connected to the power bushing 13;

[0032] The outer end of the copper busbar 4 is connected to the power cable 5 and the inner end is connected to the end shaft hole of the power terminal 3 through a screw. A thermal conductive silicone gasket 6 is attached to the front side of the copper busbar 4.

[0033] The heat generated by the transfer copper busbar 4 is transferred to the coolant in the liquid cooling tank 12 through the thermally conductive silicone gasket 6 and the cover plate 2, and the heat generated by the power terminal 3 is transferred to the coolant in the liquid cooling tank 12 through the power sleeve 13, thereby achieving heat dissipation of both.

[0034] The integrated liquid cooling box charging seat of the new energy vehicle is suitable for the charging seat with the tail cable side outlet structure; its beneficial effects are: first, the charging seat is provided with an integrated liquid cooling box 1 made of heat-conducting material, and the liquid cooling box 1 continuously cools the heat-generating component transfer copper bus 4 and the power terminal 3 in the charging seat at the same time, and the cooling is fast and efficient, so that the power terminal 3 is at the optimal charging temperature for a long time, thereby maintaining the best charging performance, and avoiding the failure of electronic components caused by high temperature and potential safety risks, with high safety, the equipment can operate stably for a long time, and achieves fast, efficient and safe charging, and the equipment has a long life; second, the integrated liquid cooling box 1 , simple structure, can reduce the number of parts and installation procedures, easy assembly, high assembly efficiency, and effectively reduce costs; third, fins 10 are provided in the liquid cooling tank 12, and a number of cooling channels 120 are formed by the fins 10, which have a better natural convection heat transfer coefficient and increase the heat dissipation area, and can dissipate heat more efficiently and quickly, ensuring the fast, efficient and safe charging of the charging stand; fourth, the thermal conductive silicone gasket 6 is convenient for connecting the transfer copper bus 3 and the cover plate 2 on both sides, and it has high thermal conductivity and can achieve good cooling function; fifth, the cover plate 2 is positioned by the power sleeve 13, the structure is simple, and the installation of the cover plate 2 is convenient.

[0035] Preferably, the outer wall of the cover plate 2 and the rear end surface of the liquid cooling tank 12 are located in the same plane, and the inner wall of the cover plate 2 is flush with the outer end surface of the fin 10. The beneficial effect is that the flush setting can effectively realize the installation and fixation of the liquid cooling box 1, and at the same time facilitate the attachment and connection of the thermal conductive silicone gasket 6.

[0036] Furthermore, the liquid inlet and outlet ports 14 are vertical tubes on the lower wall of the liquid cooling tank 12. Each inlet and outlet port 14 is threadedly connected to a water nozzle 7, which is connected to the coolant circuit via a water pipe 8. Preferably, the power cable 5 is a liquid cooling wire, and the water pipe 8 is connected to the coolant hole of the liquid cooling wire. The beneficial effect is that this structure is simple and can achieve good coolant circulation.

[0037] Preferably, the wall panels of the liquid cooling tank 12 are thick, pressure-resistant plates, and the fins 10 are thin, flow-guiding plates. This has the beneficial effect of: the thick, pressure-resistant plates can withstand greater hydraulic pressure, thereby increasing the cooling liquid flow rate, while the thin, flow-guiding plates can accommodate more flow channels within a smaller space. The dual arrangement can increase the heat transfer coefficient and accelerate cooling.

[0038] Furthermore, fins 10 are vertically arranged near the liquid inlet and outlet 14, so that the lower end of the cooling channel 120 and the liquid inlet and outlet 14 are directly connected and arranged parallel. Preferably, the fins 10 on both sides of the power sleeve 13 near the lower end are arc-shaped. The beneficial effect is that this arrangement can effectively guide the direction of liquid flow and improve heat exchange.

[0039] Furthermore, the liquid cooling tank 12 includes two side end chambers 121 and a longitudinal connecting chamber 122 connecting the two side end chambers 121. The two side end chambers 121 surround the upper power sleeve 13 on both sides, and the longitudinal connecting chamber 122 is located between the two power sleeves 13. The fins 10 in the side end chambers 121 are a plurality of evenly spaced vertically arranged first fins 101, and the fins 010 in the longitudinal connecting chamber 122 are longitudinal second fins 102. The beneficial effect is that this arrangement allows the coolant in the cooling channel 120 to flow fully around the power terminals, achieving rapid and efficient heat dissipation.

[0040] Preferably, the lower end of one side cavity 121 is further connected to a liquid-increasing cavity 123, the first fin 101 enters the liquid-increasing cavity 10, and a plurality of third fins 103 are evenly spaced outside and inside the first fin 101. The beneficial effect is that this arrangement increases the volume of the heat dissipation cavity, thereby improving the cooling capacity.

[0041] Preferably, the third fin 103 is an arc-shaped piece, and the lower end of the arc-shaped piece is vertical near the side end cavity 121; the end of the first fin 101 in the other side end cavity 121 is also provided with a longitudinal end piece. The beneficial effect is that this arrangement can well guide the direction of liquid flow and improve heat exchange.

[0042] Furthermore, the base shell 01 includes a panel shell 010 and a rear cover shell 011 connected by screws at the four corners. After the base plate 11 of the liquid cooling box 1 is screwed onto the panel shell 010, the front end of the power terminal 3 is clamped into the socket of the panel shell 010 and the rear end sleeve is connected to the inner wall of the power sleeve 13.

[0043] A low-voltage bushing 15 is also installed at the top of the base plate 11. A signal integrated output terminal is installed at the top of the rear cover 011, and a power output terminal is installed at the bottom. The power output terminal is fixed to the power cable 5 through the sealing body and the tail cover 012. The installation port of the power output terminal is also threadedly connected to a maintenance cover 013. The beneficial effect is that the structure is highly integrated and easy to assemble.

[0044] The above descriptions are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. New energy vehicle integrated liquid cooling box charging station, characterized by: include: A liquid cooling box (1) made of a heat-conducting material is connected to the base shell (01) and is located in front of the transfer copper bar (4). The lower rear end of the vertical base plate (11) is vertically provided with two power sleeves (13) and a liquid cooling tank (12) that surrounds the two power sleeves (13). The liquid cooling tank (12) is divided into a plurality of cooling channels (120) by a plurality of fins (10). Two liquid inlets and outlets (14) that are connected to the cooling channels (120) are provided on the wall of the liquid cooling tank (12). The liquid inlet and outlet (14) are connected to the cooling liquid circuit through a water pipe (8). A cover plate (2), the cover plate (2) is positioned to fit the outer wall of the power sleeve (13) and seals against the inner wall of the port of the liquid cooling tank (12), and a thermally conductive silicone gasket (6) is attached to the outer side of the cover plate (2); A power terminal (3), the front end of which is located inside the front end of the base housing (01) and the rear end of which is connected to the power bushing (13); The outer end of the transfer copper busbar (4) is connected to the power cable (5) and the inner end is connected to the end shaft hole of the power terminal (3) through a screw member, and a thermal conductive silicone gasket (6) is attached to the front side of the transfer copper busbar (4); The heat generated by the transfer copper busbar (4) is conducted to the coolant in the liquid cooling tank (12) via the thermally conductive silicone gasket (6) and the cover plate (2), and the heat generated by the power terminal (3) is conducted to the coolant in the liquid cooling tank (12) via the power sleeve (13), thereby achieving heat dissipation of both.

2. The new energy vehicle integrated liquid cooling box charging station according to claim 1 is characterized in that: The connection between the liquid cooling tank (12) and the cover plate (2) is achieved by laser welding.

3. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The outer wall of the cover plate (2) and the rear end face of the liquid cooling tank (12) are located in a plane, and the inner wall of the cover plate (2) is flush with the outer end face of the fin (10).

4. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The liquid inlet and outlet (14) is threadedly connected to a water nozzle (7), and the water nozzle (7) is connected to a cooling liquid circuit through a water pipe (8); or the power cable (5) is a liquid-cooled wire, and the water pipe (8) is connected to the cooling liquid hole of the liquid-cooled wire.

5. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The wall plate of the liquid cooling tank (12) is a thick pressure-resistant plate, and the fin (10) is a thin guide plate.

6. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The lower end of the cooling channel (120) is directly connected to the liquid inlet and outlet (14) and arranged in parallel.

7. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The two side end cavities (121) of the liquid cooling tank (12) surround both sides of the upper power sleeve (13), the longitudinal connection cavity (122) is located between the two power sleeves (13), the side end cavity (121) is provided with a plurality of equally spaced vertical first fins (101), and the longitudinal connection cavity (122) is provided with longitudinal second fins (102).

8. The new energy vehicle integrated liquid cooling box charging station according to claim 7, characterized in that: The lower end of a side end cavity (121) is connected to the liquid-increasing cavity (123), the first fin (101) enters the liquid-increasing cavity (10), and a plurality of third fins (103) are arranged at equal intervals on both sides of the first fin (101).

9. The new energy vehicle integrated liquid cooling box charging station according to claim 8, characterized in that: The third fin (103) is an arc-shaped piece, and the lower end of the arc-shaped piece is in a vertical position.

10. The new energy vehicle integrated liquid cooling box charging station according to claim 1, characterized in that: The seat shell (01) comprises a panel shell (010) and a rear cover shell (011) whose four corners are connected by screws, and the base plate (11) is screwed to the rear of the panel shell (010).

Images