Liquid cooling charging terminal conforming to national standard

Abstract

The utility model belongs to the field of charging piles, and relates to a liquid cooling charging terminal conforming to the national standard, a weak current control module, a direct current output module and a liquid cooling pump are installed in a cabinet body from top to bottom, components are fixedly installed by adopting a flat plate structure, and the weak current control module comprises a fusion controller, a leakage protector and a terminal strip; a first lap joint copper bar, a second lap joint copper bar and a third lap joint copper bar are installed on the inner surface of the rear panel through insulation columns, a first direct-current contactor and a second direct-current contactor are vertically arranged at intervals, the right side of a fuse on the upper portion of the left side is connected with the first direct-current contactor, the first direct-current contactor is connected with the second lap joint copper bar, and the right side of a diverter on the lower portion of the left side is connected with the second direct-current contactor. The second direct-current contactor is connected with the third lap joint copper bar, the fuse is connected with the first lap joint copper bar, and the first direct-current contactor, the second direct-current contactor, the fuse and the shunt are connected with the fusion controller through the terminal strip. According to the utility model, function division is clear on the whole structure, and functions of all areas do not interfere with each other.

Description

Technical Field

[0001] This utility model belongs to the field of charging pile technology, specifically relating to a liquid-cooled charging terminal that conforms to national standards. Background Technology

[0002] Driven by the trend of vehicle electrification, the use of rechargeable batteries as the primary energy source for automobiles has become a key focus of the industry. However, in the market application of electric vehicles, the longer charging time compared to traditional gasoline vehicles, coupled with limitations in battery energy density, often results in less than ideal pure electric range. This leads to range anxiety and charging anxiety for users.

[0003] Therefore, high-power liquid-cooled charging piles will become the mainstream energy replenishment method for power batteries in the future. Liquid-cooled charging terminals add liquid-cooled pumps and liquid-cooled charging guns to the existing ordinary charging terminals, while reselecting internal components and readjusting their positions. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a liquid-cooled charging terminal that conforms to national standards. The technical solution adopted by this utility model is as follows:

[0005] A liquid-cooled charging terminal conforming to national standards includes a cabinet. The cabinet includes a front panel, a rear panel, a left side panel, a right side panel, a top panel, and a bottom panel. Inside the cabinet, from top to bottom, are installed a low-voltage control module, a DC output module, and a liquid cooling pump. The components of the low-voltage control module and the DC output module are fixedly installed using a flat plate structure. The low-voltage control module includes a fusion controller, a leakage current protector, and a terminal block. The DC output module includes a DC contactor, a DC contactor, a fuse, a shunt, a connecting copper busbar, and a connecting copper busbar. Two and three overlapping copper busbars, overlapping copper busbar one, overlapping copper busbar two and overlapping copper busbar three are fixedly installed on the inner surface of the rear panel through insulating posts. DC contactor one and DC contactor two are arranged at intervals above and below. The fuse on the upper left is connected to DC contactor one on the right. DC contactor one is connected to overlapping copper busbar two. The shunt on the lower left is connected to DC contactor two on the right. DC contactor two is connected to overlapping copper busbar three. The fuse is connected to overlapping copper busbar one. DC contactor one, DC contactor two, fuse and shunt are electrically connected to the fusion controller through terminal blocks.

[0006] Preferably, the fusion controller, the residual current device (RCD), and the terminal block are fixedly installed on the inner surface of the rear panel, with the fusion controller at the top, the RCD below the fusion controller, and the terminal block to the right of the RCD. The fusion controller is electrically connected to the RCD through the terminal block.

[0007] Preferably, the terminal block includes a power terminal block and a low-voltage terminal block, with a partition provided between the power terminal block and the low-voltage terminal block.

[0008] Preferably, the liquid cooling pump sheet metal base is fixedly installed on the upper surface of the lower plate, and the liquid cooling pump is fixedly installed on the liquid cooling pump sheet metal base.

[0009] Preferably, a second display screen is installed at the upper center of the front panel, a first display screen is installed to the left of the second display screen, a third display screen is installed to the right of the second display screen, a charging indicator light is installed above the second display screen, and a card reader is installed below the second display screen. A circular light strip is provided around the card reader, the first display screen, the charging indicator light, and the third display screen.

[0010] Preferably, a louvered ventilation window is provided at the lower part of the front panel, and the louvered ventilation window includes several horizontally parallel ventilation holes.

[0011] Preferably, the base is fixedly mounted on the lower surface of the lower panel.

[0012] Preferably, a 4G antenna mounting hole is provided at the upper part of the left side panel, and a second louvered ventilation window is provided below the 4G antenna mounting hole. The second louvered ventilation window includes several ventilation holes arranged in parallel horizontally.

[0013] Preferably, a liquid-cooled charging gun outlet is provided at the lower part of the right panel, and a louvered ventilation window is provided above the liquid-cooled charging gun outlet. The louvered ventilation window includes several horizontally parallel ventilation holes. A liquid-cooled charging gun holder is installed above the louvered ventilation window, and an emergency stop button fixing hole is provided above the liquid-cooled charging gun holder.

[0014] Preferably, fan one is installed on the inner wall of the left panel at the position corresponding to louvered ventilation window two, and fan two is installed on the inner wall of the right panel at the position corresponding to louvered ventilation window three.

[0015] The beneficial technical effects of this utility model are as follows:

[0016] This utility model features a clear functional division in its overall structure. The components are installed using a straight-plate design, with distinct functional areas from the liquid cooling pump at the bottom, to the DC output module in the middle, and then to the low-voltage control module at the top. These areas do not interfere with each other, facilitating routine maintenance. The straight-plate structure eliminates the inconvenience and unsightly wiring problems caused by sheet metal bending, ensuring that all internal components meet creepage distance requirements while maintaining a cleaner, more organized appearance with no hidden areas.

[0017] This structure is highly targeted and easy to use. It addresses the fact that the national standard liquid-cooled charging terminal is different from the ordinary DC charging terminal and cannot adopt the structure of the ordinary DC charging terminal. At the same time, it integrates the functions of the previous charging main control board, power control board and TCU into one, and only a liquid-cooled charging fusion controller is needed to realize charging control and platform interaction functions. It is easy to use and has a lower cost, making it highly scalable. Attached Figure Description

[0018] Figure 1 This is a front view of the liquid-cooled charging terminal according to an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the left side of the liquid-cooled charging terminal according to an embodiment of the present utility model;

[0020] Figure 3 This is a right-side structural schematic diagram of the liquid-cooled charging terminal according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the upper part of the internal structure of the liquid-cooled charging terminal according to an embodiment of the present utility model;

[0022] Figure 5 This is a schematic diagram of the liquid cooling pump structure of the liquid-cooled charging terminal according to an embodiment of the present utility model;

[0023] In the diagram: 001-Front door panel, 002-Ventilator 1, 003-Card reader, 004-Display screen 1, 005-Display screen 2, 006-Charging indicator light, 007-Light strip, 008-Display screen 3, 009-Base, 010-Ventilator 2, 011-4G antenna mounting hole, 012-Grounding bar, 013-Liquid-cooled charging gun cable outlet, 014-Ventilator 3, 01 5-Liquid-cooled charging gun holder, 016-Emergency stop button mounting hole, 017-Fusion controller, 018-Residual current device, 019-Crossing copper busbar one, 020-Fuse, 021-Shunt, 022-Terminal block, 023-DC contactor one, 024-Crossing copper busbar two, 025-Crossing copper busbar three, 026-DC contactor two, 027-Liquid-cooled pump, 028-Liquid-cooled pump sheet metal base. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. The specific examples described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0025] See appendix Figure 1A liquid-cooled charging terminal conforming to national standards includes a cubic cabinet. The cabinet comprises a front panel 001, a left side panel, a right side panel, a rear panel, a top panel, and a bottom panel. A 7-inch display screen 2 005 is fixedly mounted at the center of the upper part of the outer surface of the front panel 001. A 4.3-inch display screen 1 004 is fixedly mounted to the left of the display screen 2 005, and a 4.3-inch display screen 3 008 is fixedly mounted to the right of the display screen 2 005. A charging indicator light 006 is fixedly mounted above the display screen 2 005, and a card reader 003 is fixedly mounted below the display screen 2 005. Here, the display screens 1 004 and 3 008 are horizontally mounted on the left and right sides of the display screen 2 005, making the dual-gun charging indication clearer and allowing users to intuitively understand the vehicle's charging status and SOC (State of Charge), which is beneficial for the reliable use of the charging facility. The card reader 003, display screen 004, charging indicator light 006, and display screen 3 008 are surrounded by a circular light strip 007, which makes the displays on the front panel 001 easier to see. A louvered ventilation window 002 is located on the lower part of the outer surface of the front panel 001. The louvered ventilation window 002 consists of several horizontally parallel ventilation holes and is used for internal heat dissipation of the liquid-cooled charging terminal. A base 009 is fixedly installed on the lower surface of the bottom panel, which improves the stability of the liquid-cooled charging terminal after installation.

[0026] See appendix Figure 2 A 4G antenna mounting hole 011 is fixedly opened on the upper part of the left side panel of the charging terminal. A 4G antenna is fixedly installed in the 4G antenna mounting hole 011. A louvered ventilation window 2 010 is provided below the 4G antenna mounting hole 011. The louvered ventilation window 2 010 is composed of several horizontally parallel ventilation holes 2.

[0027] See appendix Figure 3 The lower part of the right panel of the charging terminal has a through opening for a liquid-cooled charging gun outlet hole 013. A louvered ventilation window 3 014 is fixedly installed above the liquid-cooled charging gun outlet hole 013. The louvered ventilation window 3 014 is composed of several horizontally parallel ventilation holes 3. A liquid-cooled charging gun holder 015 is fixedly installed above the louvered ventilation window 3 014. An emergency stop button fixing hole 016 is opened above the liquid-cooled charging gun holder 015. An emergency stop button is installed in the emergency stop button fixing hole 016. The emergency stop button is used to cut off the power in an emergency.

[0028] A fan is fixedly installed on the inner wall of the left panel at the position corresponding to the louvered ventilation window 2 010, and a fan is fixedly installed on the inner wall of the right panel at the position corresponding to the louvered ventilation window 3 014. With the dual heat dissipation effect of the louvered ventilation window and the fan, the temperature inside the liquid-cooled charging terminal cabinet can be effectively maintained within the normal working range during the charging process.

[0029] See appendix Figure 4 The upper part of the liquid-cooled charging terminal cabinet is equipped with a low-voltage control module and a DC output module from top to bottom. The components of the low-voltage control module and the DC output module are installed with a flat structure design, which makes the layout of the internal components more intuitive and simple, facilitates wiring, makes the internal design of the cabinet more beautiful, and at the same time, the zoning is clear and does not interfere with each other, which facilitates maintenance work.

[0030] See appendix Figure 4 The low-voltage control module includes a fusion controller 017, a leakage current protector 018, and a terminal block 022. The fusion controller 017, leakage current protector 018, and terminal block 022 are fixedly mounted on the inner surface of the rear panel. The fusion controller 017 is connected to the leakage current protector 018 via the terminal block 022. The terminal block 022 includes a power terminal block and a low-voltage terminal block, with a partition between them. The fusion controller 017 is located at the top of the rear panel, the leakage current protector 018 is located directly below it, and the terminal block 022 is to the right of the leakage current protector 018. The fusion controller 017 used here is an existing product. It is used for the overall control of liquid-cooled charging. The fusion controller 017 integrates the functions of the existing charging main control board, power control board, and TCU (TCU refers to the charging pile billing unit), significantly reducing space usage and effectively lowering material costs.

[0031] See appendix Figure 4 The DC output module includes a DC contactor 023, a DC contactor 026, a fuse 020, a shunt 021, a copper busbar 019, a copper busbar 024, and a copper busbar 025. The DC contactors 023 and 026 are positioned vertically at a certain distance from each other. Two DC contactors are provided, spaced far apart to facilitate wiring the positive and negative terminals of the liquid-cooled charging gun. One fuse and one shunt are provided. By installing both a fuse and a shunt on the DC output lines of the liquid-cooled charging gun, charging current can be collected and read, reliably ensuring charging safety.

[0032] Specifically, the right side of the fuse 020 on the upper left (the lower end of the physical structure of fuse 020) is connected to DC contactor 023. DC contactor 023 is connected to a copper busbar 024, which is the positive terminal copper busbar. The right side of the shunt 021 on the lower left (the lower end of the physical structure of shunt 021) is connected to DC contactor 026. DC contactor 026 is connected to a copper busbar 025, which is the negative terminal copper busbar. Fuse 020 is connected to copper busbar 019. Copper busbars 019, 024, and 025 are fixedly installed on the inner surface of the rear panel using insulating posts, which provide support and leakage protection. In the DC output module, the selection of the number of DC contactors, shunts 021, and fuses 020, as well as the use of overlapping copper busbars and insulating posts, ensures that the DC output module has a complete structure and that the components are firmly connected, effectively guaranteeing charging safety.

[0033] DC contactor 023, DC contactor 026, fuse 020 and shunt 021 are electrically connected to the fusion controller 017 via terminal block 022.

[0034] See appendix Figure 5 The liquid cooling pump 027 is fixedly installed at the bottom of the cabinet. The liquid cooling pump 027 is fixedly installed on the liquid cooling pump sheet metal base 028. The liquid cooling pump sheet metal base 028 is fixedly installed on the surface of the bottom plate. The liquid cooling pump sheet metal base 028 can easily fix the liquid cooling pump 027. The innovative addition of the liquid cooling pump sheet metal base 028 as the mounting base for the liquid cooling pump 027 can firmly fix the liquid cooling pump 027 to the bottom of the cabinet, while ensuring the heat dissipation of the liquid cooling pump 027.

[0035] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A liquid-cooled charging terminal conforming to national standards, comprising a cabinet, the cabinet including a front panel, a rear panel, a left side panel, a right side panel, a top panel, and a bottom panel, characterized in that, The cabinet is equipped with a low-voltage control module, a DC output module, and a liquid cooling pump, installed from top to bottom. The components of the low-voltage control module and the DC output module are fixedly installed using a flat plate structure. The low-voltage control module includes a fusion controller, a leakage current protector, and a terminal block. The DC output module includes DC contactor 1, DC contactor 2, a fuse, a shunt, and connecting copper busbars 1, 2, and 3. Connecting copper busbars 1, 2, and 3 are fixedly installed on the inner surface of the rear panel by insulating posts. DC contactor 1 and DC contactor 2 are arranged vertically and vertically at intervals. The fuse on the upper left side is connected to DC contactor 1 on the right, and DC contactor 1 is connected to connecting copper busbar 2. The shunt on the lower left side is connected to DC contactor 2 on the right, and DC contactor 2 is connected to connecting copper busbar 3. The fuse is connected to connecting copper busbar 1. DC contactor 1, DC contactor 2, the fuse, and the shunt are electrically connected to the fusion controller through the terminal block.

2. The liquid-cooled charging terminal conforming to national standards according to claim 1, characterized in that, The fusion controller, residual current device (RCD), and terminal block are fixedly installed on the inner surface of the rear panel. The fusion controller is located at the top, the RCD is located below the fusion controller, and the terminal block is located to the right of the RCD. The fusion controller is electrically connected to the RCD through the terminal block.

3. A liquid-cooled charging terminal conforming to national standards according to claim 2, characterized in that, The terminal block includes a power terminal block and a low-voltage terminal block, with a partition between the power terminal block and the low-voltage terminal block.

4. A liquid-cooled charging terminal conforming to national standards according to claim 1, characterized in that, The liquid cooling pump is fixedly mounted on the upper surface of the bottom plate, and the liquid cooling pump is fixedly mounted on the liquid cooling pump sheet metal base.

5. A liquid-cooled charging terminal conforming to national standards according to claim 1, characterized in that, Display screen 2 is installed at the upper center of the front panel, display screen 1 is installed to the left of display screen 2, display screen 3 is installed to the right of display screen 2, a charging indicator light is installed above display screen 2, and a card reader is installed below display screen 2. A circular light strip is set around the card reader, display screen 1, charging indicator light and display screen 3.

6. A liquid-cooled charging terminal conforming to national standards according to claim 5, characterized in that, A louvered ventilation window is provided at the bottom of the front panel, which includes several horizontally parallel ventilation holes.

7. A liquid-cooled charging terminal conforming to national standards according to claim 6, characterized in that, The base is fixedly installed on the lower surface of the bottom plate.

8. A liquid-cooled charging terminal conforming to national standards according to claim 1, characterized in that, A 4G antenna mounting hole is provided at the upper part of the left panel, and a second louvered ventilation window is provided below the 4G antenna mounting hole. The second louvered ventilation window includes several ventilation holes arranged in parallel horizontal directions.

9. A liquid-cooled charging terminal conforming to national standards according to claim 8, characterized in that, The lower part of the right panel is provided with a liquid-cooled charging gun outlet hole. Above the liquid-cooled charging gun outlet hole is a louvered ventilation window 3. The louvered ventilation window 3 includes several horizontally parallel ventilation holes 3. A liquid-cooled charging gun holder is installed above the louvered ventilation window 3. An emergency stop button fixing hole is provided above the liquid-cooled charging gun holder.

10. A liquid-cooled charging terminal conforming to national standards according to claim 9, characterized in that, Install fan one on the inner wall of the left panel at the position corresponding to louvered ventilation window two, and install fan two on the inner wall of the right panel at the position corresponding to louvered ventilation window three.

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