Direct current liquid cooling charging seat with efficient heat dissipation

Abstract

The utility model discloses a direct current liquid cooling charging seat with efficient heat dissipation. The direct current liquid cooling charging seat comprises a cooling box, a refrigeration wafer, an integrated circuit board, a power terminal and a socket shell, after the cooling box is in threaded connection with the front mounting plate of the socket shell, a cooling cavity of the cooling box wraps the outer walls of the two heat conduction holes and is communicated with a cooling liquid loop, heat conduction rings are connected in the two heat conduction holes in an interference penetrating and sleeving mode, the rear ends of the power terminals are connected with the heat conduction rings in an interference shaft sleeve mode, and cooling liquid continuously entering and exiting from the cooling cavity cools the power terminals once. The rear side face of the refrigeration wafer is attached to the front side wall of the cooling box, and the refrigeration wafer and the cooling box are integrally and electrically connected to the rear side face of the integrated circuit board. And the two straight-out cable shaft sleeves are connected with the rear mounting plate of the socket shell and are electrically connected with the rear ends of the two power terminals. The device provided by the utility model has the effects of dual cooling, rapid heat dissipation, safe and rapid charging, and long service life.

Description

Technical Field

[0001] The utility model relates to the field of charging seats, in particular to a DC liquid-cooled charging seat with high-efficiency heat dissipation. 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 DC charging technology adopts high-power charging. Due to the increase in charging power and the increase in maximum charging current, the connection between the charging gun and the power terminal of the charging station will generate a lot of heat. Its defects are: First, when the charging power exceeds the load capacity of the charging station and the connecting wires, it may cause the wires to overheat, burn or even short-circuit, thereby causing a fire. Excessive current may also cause the power to trip, interrupt the charging process, and even damage the charging equipment. In severe cases, it may even burn, which poses a potential safety risk and affects charging safety. Second, 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 long vehicle charging time, which seriously affects the service life of parts. Utility Model Content

[0003] In order to solve one or more of the above problems, the present invention provides a DC liquid-cooled charging stand with high heat dissipation efficiency.

[0004] According to one aspect of the present invention, a DC liquid-cooled charging station with high heat dissipation efficiency comprises: a cooling box, a refrigeration chip, an integrated circuit board, a power terminal, and a socket shell;

[0005] After the cooling box is threadedly connected to the front mounting plate of the socket shell, the cooling cavity of the cooling box surrounds the outer walls of the two heat-conducting holes and is connected to the coolant circuit. The interference sleeves in the two heat-conducting holes are connected to the heat-conducting rings, and the interference sleeve at the rear end of the power terminal is connected to the heat-conducting ring. The coolant that continuously flows in and out of the cooling cavity cools the power terminal once.

[0006] The rear side of the cooling chip is attached to the front side wall of the cooling box and is electrically connected to the rear side of the integrated circuit board to provide secondary cooling to the cooling box.

[0007] The integrated circuit board is located in front of the cooling box and is threadedly connected to the front mounting plate;

[0008] Two straight-out cable bushings are connected to the rear mounting plate of the socket housing and electrically connected to the rear ends of the two power terminals.

[0009] In some embodiments, the refrigeration wafer is wrapped with a wafer protection cover, and the wafer protection cover is attached to the front side wall of the cooling box.

[0010] In some embodiments, two radial heat-conducting blocks are further included, one end of the radial heat-conducting block is attached to the power terminal and the other end is attached to the connection integrated circuit board.

[0011] In some embodiments, one end of the radial heat conductive block is an arc surface end and the other end is provided with a conduction groove, the arc surface end is connected to the power terminal, and the temperature sensor of the integrated circuit board enters the conduction groove.

[0012] In some embodiments, the temperature sensor is a patch temperature sensor, and the conductive groove is a rectangular groove.

[0013] In some embodiments, a semiconductor cooling element is further attached to the back side of the integrated circuit board, and the semiconductor cooling element is a semiconductor refrigeration chip.

[0014] In some embodiments, the signal jack is interference-connected with a drum spring, and the drum spring is sleeved on the outer walls of the ends of the plurality of signal pins.

[0015] In some embodiments, the cooling box includes a cover plate and a box body that are welded together at the front and back ends. Two pipe joints are symmetrically provided at the lower end of the cover plate and connected to the lower end of the cooling chamber. The pipe joints fix water nozzles, which are connected to the cooling liquid circuit to input low-temperature liquid into the cooling chamber and output high-temperature liquid.

[0016] Several partition guide plates are symmetrically arranged in the cooling chamber.

[0017] In some embodiments, the heat conductive ring and the radial heat conductive block are made of silicone.

[0018] In some embodiments, the rear metal end plate of the power terminal is directly connected to the core wire of the straight-out cable, and the straight-out cable is sleeved through the two power output tubes of the rear mounting plate. The end of the power output tube is sleeved with a wire body and a clip-on tail cover.

[0019] The beneficial effects of this DC liquid-cooled charging stand with efficient heat dissipation are: first, it has a cooling box to cool the power terminal, and adopts a refrigeration chip to cool the cooling box. The double cooling achieves a rapid heat dissipation effect, effectively cools the heating end, and removes all heat in time without heat accumulation, so that safe and fast charging is always maintained. The equipment is safe without heat overload and no safety hazards. The equipment has high performance, fast charging efficiency, and long service life. Second, the equipment is stable in use without interruption, with high charging efficiency, short charging time, and long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of a DC liquid-cooled charging station with high heat dissipation in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 A three-dimensional schematic diagram of a DC liquid-cooled charging station with high heat dissipation efficiency without the shell is shown;

[0022] Figure 3 for Figure 2 The cooling direction and the three-dimensional schematic diagram of the cooling chip are shown;

[0023] Figure 4 for Figure 3 Three-dimensional schematic diagram of the box body shown

[0024] Figure 5 for Figure 2 A three-dimensional schematic diagram of the integrated circuit board shown;

[0025] Cooling box 1, box body 10, cooling cavity 100, heat conduction hole 101, sealing ring 102, sealing groove 103, cover plate 11, main sealing ring 12, pipe joint 13, partition guide plate 14, water nozzle 15;

[0026] Refrigeration chip 2, chip protection cover 21;

[0027] Integrated circuit board 3, ferrule fixing seat 31, signal lock 32, signal sealing block 33, signal tail cover 34; thermal conductive ring 4;

[0028] Radial heat conducting block 5, arc surface end 51, conducting groove 52;

[0029] Semiconductor cooling element 6; quick-insert card seat 8;

[0030] Socket shell 00, rear mounting plate 01, power output tube 011; front mounting plate 02;

[0031] Power terminal 03; panel 04; sealing protective cover 05; signal pin 06; tail cover 07. DETAILED DESCRIPTION

[0032] 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.

[0033] Figures 1 to 5 The schematic diagram shows a DC liquid-cooled charging station with high heat dissipation according to an embodiment of the present invention. As shown in the figure, the DC liquid-cooled charging station with high heat dissipation includes: a cooling box 1, a cooling chip 2, an integrated circuit board 3, a power terminal 03, and a socket shell 00;

[0034] After the cooling box 1 is threadedly connected to the front mounting plate 02 of the socket shell 00, the cooling chamber 100 of the cooling box 1 surrounds the outer walls of the two heat-conducting holes 101 and is connected to the coolant circuit. The two heat-conducting holes 101 are connected to the heat-conducting ring 4 through interference fit, and the rear end of the power terminal 03 is connected to the heat-conducting ring 4 through interference fit. The coolant that continuously flows in and out of the cooling chamber 100 cools the power terminal 03 once.

[0035] The rear side of the cooling chip 2 is attached to the front side wall of the cooling box 1 and is electrically connected to the rear side of the integrated circuit 3 to provide secondary cooling to the cooling box 1.

[0036] The integrated circuit board 3 is located in front of the cooling box 1 and is screwed to the front mounting plate 02;

[0037] The two straight-out cable sleeves are connected to the rear mounting plate 01 of the socket housing 00 and are electrically connected to the rear ends of the two power terminals 03 .

[0038] The beneficial effects of this DC liquid-cooled charging stand with efficient heat dissipation are: first, it has a cooling box 1 to cool the power terminal 03, and adopts a refrigeration chip 2 to cool the cooling box 1, and the double cooling achieves a rapid heat dissipation effect, effectively cools the heating end, and removes all heat in time without heat accumulation, so as to maintain safe and fast charging at all times, and the equipment is safe without heat overload and safety hazards, with high equipment performance, fast charging efficiency and long equipment service life; second, the equipment can be used stably without interruption, with high charging efficiency, short charging time and long service life.

[0039] Preferably, the outer side of the cooling wafer 2 is covered with a wafer protection cover 21, and the wafer protection cover 21 is attached to the front side wall of the cooling box 1. The beneficial effect is that: this arrangement effectively protects the cooling wafer 2.

[0040] Furthermore, the system includes two radial heat-conducting blocks 5, one end of which is attached to the power terminal 03 and the other end is attached to the integrated circuit board 3. Preferably, one end of the radial heat-conducting block 5 is a curved end 51 and the other end is provided with a conductive groove 52. The curved end 51 is connected to the power terminal 03, and the temperature sensor of the integrated circuit board 3 enters the conductive groove 52. Preferably, the temperature sensor is a surface-mount temperature sensor, and the conductive groove 52 is a rectangular groove. This arrangement has the beneficial effect of measuring the terminal temperature to control the liquid flow rate, achieving precise thermal control and preventing overheating or coolant idling.

[0041] Preferably, a semiconductor cooling element 6 is attached to the back side of the integrated circuit board 3. The semiconductor cooling element 6 is a semiconductor refrigeration chip. Its beneficial effect is to effectively reduce the heat of the integrated circuit board 3 and avoid failure caused by overheating.

[0042] Furthermore, the front end of the front mounting plate 02 is equipped with two power jacks, a grounding jack, and several signal jacks. The front sleeve of the power terminal 03 connects to the power jacks, the front sleeve of the PE grounding terminal connects to the grounding jack, and the front sleeve of the signal pin 06 connects to the signal jack. Preferably, the signal jacks are connected to drum springs with interference fit, and the drum springs are sleeved on the outer wall of the ends of the several signal pins 06. This arrangement has the beneficial effects of high integration, flexible connection, and easy assembly.

[0043] Preferably, the cooling box 1 includes a cover plate 11 and a box body 10 that are welded together at the front and back ends. Two pipe joints 13 are symmetrically provided at the lower end of the cover plate 11 and connected to the lower end of the cooling chamber 100. The pipe joints 13 fix water nozzles 15, which are connected to the coolant circuit to input low-temperature liquid into the cooling chamber 100 and output high-temperature liquid.

[0044] A plurality of partition guide plates 14 are symmetrically arranged in the cooling chamber 100 .

[0045] The rear end of the PE grounding terminal is sleeved on the upper through hole of the cooling box 1, thereby making the cooling box 1 heart-shaped. Its beneficial effect is that the setting of the cooling chamber 100 enables liquid to flow evenly through the two sub-cavities, so that the cooling effect of the two sub-cavities is the same, which helps to evenly and evenly cool the temperature.

[0046] Preferably, a quick-insert socket 8 is provided on the outside of the faucet 15 , a buckle is provided at the rear end of the liquid inlet and outlet pipe 12 , and the buckle is connected to the buckle through the card hole of the quick-insert socket 8 , thereby realizing a quick direct plug-in connection of the faucet 15 .

[0047] Preferably, the rear end cavity of the front mounting plate 02 is provided with a plurality of screw holes, which enter the four corner through holes of the box body 10 and the four corner through holes of the cover plate 11 and are connected with screw members. The beneficial effect is that this arrangement facilitates assembly.

[0048] Preferably, the heat-conducting ring 4 and the radial heat-conducting block 5 are made of silicone. The beneficial effect is that this arrangement has a good heat-conducting effect.

[0049] Preferably, the rear metal end plate of the power terminal 03 is directly connected to the core wire of the straight-out cable. After the straight-out cable is sleeved, the two power output tubes 011 of the mounting plate 01 are installed. The end of the power output tube 011 is sleeved with a wire body and snapped into the tail cover 07.

[0050] Furthermore, the rear mounting plate 01 of the socket housing 00 is clamped to the front mounting plate 02 , the front end of the front mounting plate 02 is threadedly connected to the panel 04 , and the panel 05 is plugged with a sealing protective cover 05 .

[0051] Preferably, the cover plate 11 is provided with a positioning groove, and the front end of the hole wall of the heat conducting hole 101 is provided with a protruding sealing ring 102, which is inserted into the positioning groove; preferably, a sealing ring is provided in the positioning groove.

[0052] The main sealing ring 12 is provided in the sealing groove 103 of the box body 10 in an interference fit, and the rear end of the main sealing ring 12 is in contact with the cover plate 11. The beneficial effect is that the double sealing ring improves the sealing performance of the liquid cooling box and prevents the cooling liquid from overflowing.

[0053] Furthermore, a ferrule holder 31 is secured to the top of the integrated circuit board 3. The pins of the ferrule holder 31 secure a signal latch 32, the end of which fits over a signal seal 33. The latch 32 and seal 33 are sleeved within the signal outlet tube of the rear mounting plate 01 and secured to a signal tail cap 34. This arrangement facilitates signal outlet wiring.

[0054] 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. A DC liquid-cooled charging station with high heat dissipation, characterized in that: It comprises: a cooling box (1), a refrigeration chip (2), an integrated circuit board (3), a power terminal (03) and a socket shell (00); After the cooling box (1) is threadedly connected to the front mounting plate (02) of the socket shell (00), the cooling chamber (100) of the cooling box (1) surrounds the outer walls of the two heat-conducting holes (101) and is connected to the cooling liquid circuit, the interference fit sleeves in the two heat-conducting holes (101) are connected to the heat-conducting ring (4), and the interference fit sleeve at the rear end of the power terminal (03) is connected to the heat-conducting ring (4), and the cooling liquid that continuously enters and exits the cooling chamber (100) cools the power terminal (03) once. The rear side of the refrigeration chip (2) is attached to the front side wall of the cooling box (1) and is electrically connected to the rear side of the integrated circuit board (3) to secondary cool the cooling box (1); The integrated circuit board (3) is located in front of the cooling box (1) and is threadedly connected to the front mounting plate (02); The two straight-out cable sleeves are connected to the rear mounting plate (01) of the socket housing (00) and are electrically connected to the rear ends of the two power terminals (03).

2. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: The outer side of the refrigeration chip (2) is covered with a chip protection cover (21), and the chip protection cover (21) is attached to the front side wall of the cooling box (1).

3. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: It also includes two radial heat-conducting blocks (5), one end of each radial heat-conducting block (5) is attached to the power terminal (03) and the other end is attached to the connection integrated circuit board (3).

4. The DC liquid-cooled charging station with high heat dissipation according to claim 3, characterized in that: One end of the radial heat conduction block (5) is a circular arc surface end (51) and the other end is provided with a conduction groove (52), the circular arc surface end (51) is connected to the power terminal (03), and the temperature sensor of the integrated circuit board (3) enters the conduction groove (52).

5. The DC liquid-cooled charging station with high heat dissipation according to claim 4, characterized in that: The temperature sensor is a patch temperature sensor, and the conductive groove (52) is a rectangular groove.

6. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: A semiconductor cooling element (6) is also attached to the rear side of the integrated circuit board (3), and the semiconductor cooling element (6) is a semiconductor refrigeration chip.

7. The DC liquid-cooled charging station with high heat dissipation according to claim 5, characterized in that: The signal jack is interference-connected with a drum spring, and the drum spring is sleeved on the outer wall of the end of a plurality of signal pins (06).

8. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: The cooling box (1) comprises a cover plate (11) and a box body (10) which are welded together at the front and rear ends. Two pipe joints (13) are symmetrically provided at the lower end of the cover plate (11) and are connected to the lower end of the cooling chamber (100). The pipe joints (13) are fixed with water nozzles (15). The water nozzles are connected to the cooling liquid circuit to input low-temperature liquid into the cooling chamber (100) and output high-temperature liquid. A plurality of partition guide plates (14) are symmetrically arranged in the cooling cavity (100).

9. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: The heat-conducting ring (4) and the radial heat-conducting block (5) are made of silicone.

10. The DC liquid-cooled charging station with high heat dissipation according to claim 1, characterized in that: The rear metal end plate of the power terminal (03) is directly connected to the core wire of the direct-out cable, and the direct-out cable is sleeved through the two power outlet tubes (011) of the rear mounting plate (01), and the end of the power outlet tube (011) is sleeved with a wire sealing body and is clamped with a tail cover (07).

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