Liquid cooling charging seat with novel liquid cooling system

Abstract

The utility model discloses a liquid cooling charging seat with a novel liquid cooling system. The liquid cooling charging seat comprises a rear liquid cooling shell, a front mounting shell, a liquid cooling cable and a direct current terminal, two straight wire outlet pipes are symmetrically arranged on a mounting substrate of the rear liquid cooling shell, heat conduction pipes directly facing the straight wire outlet pipes are symmetrically arranged in a liquid cooling groove of a liquid cooling box, and the liquid cooling box is fixedly connected with the front sealing liquid cooling groove of the rear mounting shell. Liquid inlet and outlet pipes communicated with the liquid cooling groove are integrally and symmetrically arranged at the rear end of the mounting substrate; the front mounting shell is in threaded connection with the rear mounting shell, and the power jack inner shaft sleeve is connected with the front ends of the two direct-current terminals; the two direct-current terminals are connected with the heat-conducting pipe through interference shaft sleeves, and metal sheets at the rear ends of the direct-current terminals are inserted into the straight wire outlet pipe; the tail end of the liquid cooling cable is connected with the straight wire outlet pipe in a penetrating and sleeving mode. A liquid passing pipe of the liquid cooling cable is communicated with the liquid inlet and outlet pipe. The utility model has the advantages of general liquid cooling circulation system, high integration level, part saving, simple and fast assembly, and safe and fast charging.

Description

Technical Field

[0001] The utility model relates to the field of charging seats, in particular to a liquid-cooled charging seat with a novel liquid-cooling system. Background Art

[0002] With the national policy support for new energy, new energy vehicles have developed 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 of charging power and the maximum charging current, a large amount of heat will be generated when the charging gun is connected to the power terminals of the charging seat. Its defects are as follows: First, when the charging power exceeds the load capacity of the charging seat and the connecting wires, it may cause the wires to overheat, catch fire or even short-circuit, thus triggering a fire. Excessive current may also cause the power supply to trip, interrupt the charging process, and even damage the charging equipment. In severe cases, it may even catch fire, with potential safety risks and affecting charging safety; Second, the electronic components in the charging seat are continuously in a high-temperature state during use, the equipment frequently stops, it is difficult to operate stably, resulting in low charging efficiency, long vehicle charging time, and seriously affecting the service life of parts; Third, the assembly of the charging seat is difficult and time-consuming, and the assembly efficiency is low. Content of the Utility Model

[0003] In order to solve one or more of the above problems, the utility model provides a liquid-cooled charging seat with a novel liquid-cooling system.

[0004] According to one aspect of the utility model, the liquid-cooled charging seat with a novel liquid-cooling system includes:

[0005] A rear liquid-cooling shell, which includes a rear mounting shell and a liquid-cooling box made of a heat-conducting material. Two straight wire outlet pipes are symmetrically arranged at the rear end of the mounting substrate of the rear mounting shell. The inside of the liquid-cooling box is hollow to form a liquid-cooling groove with an open rear end, and a heat-conducting pipe is symmetrically arranged in the middle. The rear end of the liquid-cooling box is fixedly connected to the front side of the mounting substrate to seal the liquid-cooling groove. The heat-conducting pipe is aligned with the straight wire outlet pipe. The rear end of the mounting substrate is integrally and symmetrically provided with an inlet and outlet pipe communicating with the liquid-cooling groove;

[0006] A front mounting shell, which is threadedly connected to the front of the rear mounting shell, and the inner sleeve of its power jack is connected to the front ends of two DC terminals;

[0007] DC terminals, both of the two DC terminals are press-fitted and sleeved on the heat-conducting pipe, and the metal sheets at their rear ends are inserted into the straight wire outlet pipes;

[0008] Liquid-cooling cables, the ends of the liquid-cooling cables are sleeved and connected to the straight wire outlet pipes, the liquid-conducting pipes of the liquid-cooling cables are communicated with the inlet and outlet pipes, and the metal core wires are welded to the metal sheets of the DC terminals.

[0009] In some embodiments, the inlet and outlet liquid pipes are located in the straight outlet pipe, the inlet and outlet liquid pipes are directly inserted into the interference fit connection water nozzle, the water nozzle is connected to the liquid pipe through the adapter pipe, and the liquid pipe is connected to the coolant circulation loop.

[0010] In some embodiments, a quick-insert socket is provided outside the faucet, a buckle is provided at the rear end of the liquid inlet and outlet pipes, and the buckle is connected to the buckle by the buckle hole of the quick-insert socket.

[0011] In some embodiments, the plug-in column of the faucet is provided with a plurality of sealing ring grooves, and the shaft sleeves are provided with O-rings in the sealing ring grooves.

[0012] In some embodiments, a main sealing ring is inserted into the outer sealing groove of the rear wall of the liquid cooling box, and a sealing ring cover is provided on the front side of the mounting base. The sealing ring cover has the same contour as the rear wall of the liquid cooling box, and the sealing ring cover fits the rear wall of the liquid cooling box and presses the main sealing ring.

[0013] In some embodiments, a positioning shoulder is provided at the front end of the heat pipe, and an inner sealing ring is provided on a positioning end ring symmetrically arranged on the front side of the mounting substrate. The positioning shoulder is inserted into the positioning end ring and presses the inner sealing ring.

[0014] In some embodiments, two spacers are symmetrically arranged at the upper and lower ends of the liquid cooling tank to form a double-channel cooling cavity.

[0015] In some embodiments, the spacer is formed by two connected arc pieces, which surround the upper semicircle or lower semicircle of the two heat-conducting tubes, and distribution gaps are formed at the opposite ends of the two spacers and a flow guide gap is provided in the middle. The two inlet and outlet liquid pipes are directly opposite to the distribution gaps, one distribution gap is a liquid separation port and the other distribution gap is a liquid collection port.

[0016] In some embodiments, a plurality of connecting tube columns are provided on the rear mounting shell, a plurality of screw hole columns are provided at the rear end of the front mounting shell, and the threaded parts pass through the connecting tube columns and the avoidance through holes of the liquid cooling box to connect the screw hole columns.

[0017] In some embodiments, the metal core wire and the metal sheet are welded using ultrasonic welding.

[0018] The beneficial effects of the liquid-cooled charging stand with a novel liquid cooling system are as follows: first, the in-seat liquid cooling system formed by the rear liquid cooling shell is connected to the liquid cooling system of the liquid cooling cable, and the two share a common liquid cooling circulation system. The overall structure has high integration and small size, and there is no additional liquid cooling pipeline system to increase the size of the equipment; second, the rear liquid cooling shell with an integrated structure concentrates the rear-end fixing and liquid cooling functions, saving parts, and at the same time, the assembly is simple and fast, the assembly efficiency is high, and the equipment cost is effectively saved; third, the rear liquid cooling shell effectively cools the heating end, removes all the heat in time, there is no heat accumulation, and safe and fast charging is maintained at all times. The equipment is safe without heating overload, there is no safety hazard, the equipment has high performance, fast charging efficiency, and long equipment service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 3D schematic diagram of a liquid-cooled charging stand with a new liquid-cooling system according to an embodiment of the present utility model;

[0020] Figure 2 is Figure 1 Cross-sectional schematic diagram of the shown liquid-cooled charging stand;

[0021] Figure 3 is Figure 2 3D schematic diagram of the shown rear liquid-cooling shell;

[0022] Figure 4 is Figure 2 3D schematic diagram of the shown liquid-cooling box;

[0023] Figure 5 is Figure 1 3D schematic diagram of the connection between the shown water nozzle and the quick-insert card holder;

[0024] Figure 6 is Figure 1 3D schematic diagram of the shown liquid-cooled charging stand with the outer shell removed;

[0025] Rear liquid-cooling shell 01, rear mounting shell 1, mounting substrate 10, straight outlet pipe 11, inlet and outlet liquid pipe 12, sealing ring cover 13, positioning end ring 14, inner sealing ring 15, signal outlet pipe 17, connecting pipe column 18;

[0026] Liquid-cooling box 2, liquid-cooling tank 20, heat-conducting pipe 21, outer sealing groove 22, main sealing ring 23, positioning shoulder 24, spacer 25, flow distribution notch 26, diversion notch 27,

[0027] Water nozzle 3, sealing ring groove 31, O-ring 32, quick-insert card holder 4,

[0028] Integrated circuit board 5, insert core fixing seat 51, signal card lock 52, signal tail cover 54, refrigeration chip 6, chip protection cover 7; adapter 8;

[0029] Front mounting shell 02; DC terminal 03, metal sheet 031;

[0030] Liquid-cooling cable 04, liquid pipe 040, metal core wire 041; tail cover 05. Detailed implementation manners

[0031] The present utility model will be further described in detail below with reference to the accompanying drawings. It should be noted that the terms "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the terms "inner" and "outer" respectively refer to the directions towards or away from the geometric center of a specific component.

[0032] Figures 1 to 6Schematically shows a liquid-cooled charging stand with a novel liquid-cooling system according to an embodiment of the present utility model. As shown in the figure, the liquid-cooled charging stand with the novel liquid-cooling system includes: a rear liquid-cooling shell 01, the rear liquid-cooling shell 01 includes a rear mounting shell 1 and a liquid-cooling box 2 made of a heat-conducting material. At the rear end of the mounting substrate 10 of the rear mounting shell 1, two straight wire outlet pipes 11 are symmetrically provided. The inside of the liquid-cooling box 2 is hollow to form a rear-open liquid-cooling tank 20, and heat-conducting pipes 21 are symmetrically provided in the middle. The rear end of the liquid-cooling box 2 is fixedly connected to the front side of the mounting substrate 10 to seal the liquid-cooling tank 20. The heat-conducting pipes 21 are directly opposite to the straight wire outlet pipes 11. At the rear end of the mounting substrate 10, liquid inlet and outlet pipes 12 communicating with the liquid-cooling tank 20 are integrally and symmetrically provided.

[0033] A front mounting shell 02, the front mounting shell 02 is threadedly connected to the front of the rear mounting shell 1, and the inner shaft sleeve of its power jack is connected to the front ends of two DC terminals 03.

[0034] DC terminals 03, both of the two DC terminals 03 are press-fitted with the heat-conducting pipes 21 by shaft sleeves, and the metal sheets 031 at their rear ends are inserted into the straight wire outlet pipes 11.

[0035] A liquid-cooling cable 04, the end of the liquid-cooling cable 04 is sleeved and connected to the straight wire outlet pipe 11. The liquid-conducting pipe 040 of the liquid-cooling cable 04 communicates with the liquid inlet and outlet pipes 12, and the metal core wire 041 is welded to the metal sheet 031 of the DC terminal 03. The metal core wire 041 and the metal sheet 031 are preferably welded by ultrasonic welding. Preferably, the liquid inlet and outlet pipes 12 are located inside the straight wire outlet pipes 11. The liquid inlet and outlet pipes 12 are directly inserted and press-fitted with a water nozzle 3. The water nozzle 3 is connected to the liquid-conducting pipe 040 through a rotary joint 8, and the liquid-conducting pipe 040 communicates with the coolant circulation loop.

[0036] The beneficial effects of the liquid-cooled charging stand with the novel liquid-cooling system are as follows: First, it has an in-seat liquid-cooling system composed of the rear liquid-cooling shell 01, which is connected to the liquid-cooling system of the liquid-cooling cable 04, and the two share a liquid-cooling circulation system. The overall structure has a high integration degree, a small volume, and no additional liquid-cooling pipeline system to increase the equipment volume. Second, the integrally structured rear liquid-cooling shell 01 combines the functions of rear fixing and liquid cooling, saves components, is simple and fast to assemble, has a high assembly efficiency, and effectively saves the product and equipment costs. Third, the rear liquid-cooling shell 01 effectively cools the heat-generating end, timely discharges all the heat, has no heat accumulation, always maintains safe and fast charging, the equipment is safe without overheating, has no potential safety hazards, has high equipment performance, fast charging efficiency, and a long service life of the equipment.

[0037] Furthermore, the liquid inlet and outlet pipes 12 are located inside the straight wire outlet pipes 11. The liquid inlet and outlet pipes 12 are directly inserted and press-fitted with the water nozzle 3. A quick-insert card seat 4 is provided outside the water nozzle 3, and a buckle is provided at the rear end of the liquid inlet and outlet pipes 12. The card hole of the quick-insert card seat 4 is connected to the buckle, so as to realize the quick direct insertion connection of the water nozzle 3. Its beneficial effects are: The quick-insert type water inlet and outlet can further improve the assembly efficiency, and at the same time, the buckle structure can improve the connection tightness.

[0038] Preferably, the insertion column of the water nozzle 3 is provided with a plurality of seal ring grooves 31, and O-ring seals 32 are sleeved in the seal ring grooves 31. The beneficial effect is: to improve the sealing performance of the water nozzle and prevent leakage.

[0039] Furthermore, a main seal ring 23 is press-fitted in the outer seal groove 22 on the rear wall of the liquid cooling box 2. A seal ring cover 13 is provided on the front side of the mounting substrate 10. The seal ring cover 13 has the same contour as the rear wall of the liquid cooling box 2. The seal ring cover 13 fits against the rear wall of the liquid cooling box 2 and presses the main seal ring 23. Preferably, a positioning shoulder 24 is provided at the front end of the heat conduction tube 21. Inner seal rings 15 are provided on the front side of the mounting substrate 10 symmetrically with respect to the positioning end rings 14 provided. The positioning shoulder 24 is inserted into the positioning end ring 14 and presses the inner seal ring 15. The beneficial effects are: firstly, the double seal rings improve the sealing performance of the liquid cooling box and prevent the cooling liquid from overflowing; secondly, the setting of the positioning shoulder 24 and the seal ring cover 13 can improve the installation accuracy.

[0040] Preferably, the liquid cooling box 2 is made of PPS or PPA material with good heat conduction and high insulation; the beneficial effect is: this material has good heat conduction effect.

[0041] Preferably, the liquid cooling box 2 is laser welded to the front end of the mounting substrate 10. The beneficial effect is: the connection strength is high.

[0042] Furthermore, two partitions 25 are symmetrically provided inside the upper and lower ends of the liquid cooling groove 20 to form a double-flow channel cooling cavity. Preferably, the partition 25 is formed by connecting two arc-shaped pieces, which surround the upper semi-circle or the lower semi-circle of the two heat conduction tubes 21. Flow distribution notches 26 are formed at the opposite ends of the two partitions 25, and a flow guiding notch 27 is provided in the middle. The two liquid inlet and outlet pipes 12 are opposite to the flow distribution notches 26. One flow distribution notch 26 is a liquid distribution port and the other flow distribution notch 26 is a liquid collecting port. The beneficial effect is: the setting of the liquid cooling groove 20 enables the liquid to flow evenly through the two sub-cavities, so that the cooling effects of the two sub-cavities are the same, which helps to achieve uniform and balanced cooling.

[0043] Preferably, a plurality of connecting pipe columns 18 are provided on the rear mounting shell 1, and a plurality of screw hole columns are provided at the rear end of the front mounting shell 02. The threaded parts pass through the connecting pipe columns 18 and the avoidance through holes of the liquid cooling box 2 to connect to the screw hole columns. The beneficial effect is: this setting is convenient for connection and installation.

[0044] Furthermore, the integrated circuit board 5 is located in front of the liquid cooling box 2 and is threadedly connected to the front mounting shell 02. Two power jacks, one ground jack and a plurality of signal jacks are provided at the front end of the front mounting shell 02. The front end of the power terminal 03 is sleeved and connected to the power jack, the front end of the PE ground terminal is sleeved and connected to the ground jack, and the front end of the signal pin is connected to the signal jack through a drum spring bushing. The beneficial effect is: this setting has high integration, elastic connection and is convenient for assembly.

[0045] The rear shaft sleeve of the PE grounding terminal is in the upper through hole of the liquid cooling box 2, so that the liquid cooling box 2 is heart-shaped.

[0046] Furthermore, a ferrule fixing seat 51 is also fixed at the upper end of the integrated circuit board 5. The signal locking of the pins of the ferrule fixing seat 51 is the signal locking 52. The end of the signal locking 52 fits against the signal sealing block. The signal locking 52 and the signal sealing block are sleeved in the signal output pipe 17 of the mounting substrate 10. The signal end cap 54 is snap-connected to the signal output pipe 17 and presses and connects to the signal sealing block. The beneficial effect is that this setting facilitates the signal wire output setting and is convenient for maintenance and replacement.

[0047] Furthermore, it also includes that the rear side of the refrigeration chip 6 is attached to the front side wall of the liquid cooling box 2 and is located behind the integrated circuit board 5. The refrigeration chip 6 is electrically connected to the integrated circuit board 5 and the secondary coolant liquid cooling box 2. Preferably, the outside of the refrigeration chip 6 is covered with a chip protection cover 7, and the chip protection cover 7 fits against the front side wall of the liquid cooling box 2. The beneficial effect is that this setting can cool the integrated circuit board 5 well and avoid the failure effect caused by overheating.

[0048] Furthermore, the end of the straight wire pipe 11 is sleeved with a wire sealing body and is snap-connected to the end cap 05. The front end of the front mounting shell 02 is threadedly connected to the panel, and the panel 07 is inserted with a sealing protection cover.

[0049] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A liquid-cooled charging stand with a novel liquid-cooling system, characterized in that, Including: Rear liquid cooling housing (01), the rear liquid cooling housing (01) includes a rear mounting housing (1) and a liquid cooling box (2) made of heat-conducting material. At the rear end of the mounting substrate (10) of the rear mounting housing (1), two straight outlet pipes (11) are symmetrically provided. The inside of the liquid cooling box (2) is hollow to form a liquid cooling groove (20) with an open rear end, and heat-conducting pipes (21) are symmetrically arranged in the middle. The rear end of the liquid cooling box (2) is fixedly connected to the front side of the mounting substrate (10) to seal the liquid cooling groove (20). The heat-conducting pipes (21) are aligned with the straight outlet pipes (11). At the rear end of the mounting substrate (10), liquid inlet and outlet pipes (12) communicating with the liquid cooling groove (20) are integrally and symmetrically provided. Front mounting housing (02), the front mounting housing (02) is threadedly connected in front of the rear mounting housing (1), and the inner sleeve of its power jack is connected to the front ends of two DC terminals (03). DC terminals (03), both of the two DC terminals (03) are press-fitted with the heat-conducting pipes (21) by means of an interference fit, and the metal sheets (031) at their rear ends are inserted into the straight outlet pipes (11). Liquid cooling cable (04), the end of the liquid cooling cable (04) is sleeved and connected to the straight outlet pipe (11). The liquid passing pipe (040) of the liquid cooling cable (04) communicates with the liquid inlet and outlet pipes (12), and the metal core wire (041) is welded to the metal sheet (031) of the DC terminal (03).

2. The liquid cooling charging base with a novel liquid cooling system according to claim 1, characterized in that The liquid inlet and outlet pipes (12) are located inside the straight outlet pipes (11). The liquid inlet and outlet pipes (12) are directly inserted and press-fitted with a water nozzle (3). The water nozzle (3) is connected to the liquid passing pipe (040) through an adapter pipe (8), and the liquid passing pipe (040) communicates with the coolant circulation circuit.

3. The liquid cooling charging stand with a new liquid cooling system according to claim 2, characterized in that, A quick-insert card seat (4) is provided outside the water nozzle (3), and a buckle is provided at the rear end of the liquid inlet and outlet pipe (12). The card hole of the quick-insert card seat (4) is connected to the buckle.

4. The liquid-cooling charging stand with a novel liquid-cooling system according to claim 2, characterized in that, A plurality of sealing ring grooves (31) are provided on the insertion column of the water nozzle (3), and O-ring seals (32) are sleeved in the sealing ring grooves (31).

5. The liquid cooling charging stand with a new liquid cooling system according to claim 1, characterized in that, A main seal ring (23) is press-fitted in an outer sealing groove (22) on the rear wall of the liquid cooling box (2). A seal ring cover (13) is provided on the front side of the mounting substrate (10). The seal ring cover (13) has the same contour as the rear wall of the liquid cooling box (2). The seal ring cover (13) fits against the rear wall of the liquid cooling box (2) and presses the main seal ring (23).

6. The liquid cooling charging base with a novel liquid cooling system according to claim 1, characterized in that, A positioning shoulder (24) is provided at the front end of the heat-conducting pipe (21). Inner seal rings (15) are provided on the front side of the mounting substrate (10) symmetrically with positioning end rings (14). The positioning shoulder (24) is inserted into the positioning end ring (14) and presses the inner seal ring (15).

7. The liquid cooling charging base with a new liquid cooling system according to claim 1, characterized in that, Two partition plates (25) are symmetrically provided inside the upper and lower ends of the liquid cooling groove (20) to form a double-flow channel cooling cavity.

8. The liquid-cooled charging stand with a new liquid-cooling system according to claim 7, characterized in that, The partition plates (25) are formed by connecting two arc-shaped pieces, which surround the upper or lower semi-circles of the two heat-conducting pipes (21). At the opposite ends of the two partition plates (25), a flow distribution gap (26) is formed, and a diversion gap (27) is provided in the middle. The two liquid inlet and outlet pipes (12) are aligned with the flow distribution gap (26). One of the flow distribution gaps (26) is a liquid separation port, and the other flow distribution gap (26) is a liquid collection port.

9. The liquid-cooled charging base with a new liquid-cooling system according to claim 1, characterized in that, The rear mounting shell (1) is provided with a plurality of connecting pipe columns (18), and the rear end of the front mounting shell (02) is provided with a plurality of screw hole columns. The threaded member passes through the connecting pipe columns (18) and the avoidance through holes of the liquid cooling box (2) to connect the screw hole columns.

10. The liquid-cooled charging stand with a novel liquid-cooling system according to claim 1, characterized in that, The metal core wire (041) and the metal sheet (031) are ultrasonically welded.

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