Liquid cooling system for high-power charging equipment

Abstract

The utility model relates to high -power charging equipment heat dissipation technical field especially relates to a kind of liquid cooling system for high -power charging equipment, including cabinet, water tank, inlet cold liquid pipe, pump suction pipe, water pump, pump out pipe, cold row, outlet cold liquid pipe and cooling fan, the inside of the cabinet is installed with water tank, cold row and cooling fan side by side, water pump is installed in the lower portion of water tank, the inlet cold liquid pipe of water tank bottom end installation and the pump suction pipe of the suction end connection of water pump are passed through cabinet, the output end of water pump is connected with the liquid inlet end of cold row via pump out pipe, the outlet cold liquid pipe of the liquid outlet end of cold row installation is passed through cabinet, the utility model has the advantages of extremely compact spatial layout, high heat dissipation efficiency, convenient maintenance and safe and reliable, can effectively solve the problem, such as high -power charging equipment charging process heating, low charging efficiency.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for high-power charging equipment, and in particular to a liquid cooling system for high-power charging equipment. Background Technology

[0002] With the rapid development of cloud computing, 5G, new energy vehicles, and the electrification of construction machinery, there is a growing demand for increased charging current and shorter charging times in charging equipment. This necessitates addressing issues such as long charging times, heat generation during charging, and low charging efficiency in automobiles and construction machinery. Traditional air-cooling methods for high-power charging equipment are nearing their heat dissipation limits in confined, enclosed cabinet spaces, and also suffer from high noise levels and low energy efficiency. While liquid cooling technology offers high heat dissipation efficiency, efficiently, reliably, and safely arranging its key components (such as water tanks and piping) within the limited space of a cabinet presents a significant challenge. Existing designs often suffer from low space utilization, cluttered piping hindering maintenance, insufficient structural strength, and a high risk of liquid leakage.

[0003] In view of this, the inventors hope to design a liquid cooling system for high-power charging equipment that can solve the problems of insufficient heat dissipation power, large overall system size, complex structure, poor quality stability, and difficulty in maintenance of traditional high-power charging equipment cooling systems. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned problems in the traditional technology and provide a liquid cooling system for high-power charging equipment, which has the advantages of extremely compact spatial layout, high heat dissipation efficiency, convenient maintenance and safety and reliability.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution: A liquid cooling system for a high-power charging device includes a cabinet, a water tank, a coolant inlet pipe, a pump suction pipe, a water pump, a pump outlet pipe, a radiator, a coolant outlet pipe, and a cooling fan. The water tank, radiator, and cooling fan are installed side by side inside the cabinet. The water pump is installed below the water tank in the cabinet. The bottom of the water tank is equipped with a coolant inlet pipe that penetrates the cabinet and a pump suction pipe that connects to the suction end of the water pump. The output end of the water pump is connected to the inlet end of the radiator via the pump outlet pipe. The outlet end of the radiator is equipped with a coolant outlet pipe that penetrates the cabinet. The radiator includes a bottom frame, side frames, a top frame, high-temperature heat dissipation pipes, and a microchannel heat dissipation plate. Two side frames are symmetrically installed between the bottom frame and the top frame. The high-temperature heat dissipation pipe is composed of several vertical pipe sections arranged in parallel and elbows located between two adjacent vertical pipe sections. The elbows located in the lower layer are located in the bottom frame, and the elbows located in the upper layer are located in the top frame. A microchannel heat dissipation plate is installed between two connected vertical pipe sections. The bottom frame has a liquid inlet and a liquid outlet that are respectively connected to both ends of the high-temperature heat dissipation pipe.

[0006] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, the water tank consists of a tank body and a cover fitted on its top. The cover integrates a temperature sensor for detecting the water temperature inside the tank and a liquid level sensor for detecting the water level inside the tank.

[0007] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, the vertical cross-section of the inner cavity of the housing is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the cross-section of the inner cavity of the housing is a rounded rectangular structure.

[0008] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, there are two cooling fans arranged side by side, with the air intake direction of the cooling fans facing the radiator.

[0009] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, each side panel of the cabinet is provided with several ventilation and heat dissipation holes.

[0010] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, the inner end of the inlet coolant pipe extends to a high position near the tank cover of the water tank, and the inner end of the pump suction pipe is near a low position near the bottom surface of the water tank.

[0011] Furthermore, in the liquid cooling system used in the aforementioned high-power charging equipment, the inlet and outlet coolant pipes are each equipped with a one-way valve, a temperature sensor, and a pressure sensor.

[0012] Furthermore, in the liquid cooling system used in the aforementioned high-power charging equipment, the bottom frame, side frame, top frame, high-temperature heat dissipation pipe, and microchannel heat dissipation plate of the radiator are all made of stainless steel.

[0013] Furthermore, in the liquid cooling system for the aforementioned high-power charging equipment, a control board is installed on the outside of the cabinet. The control board can control and monitor the speed of the water pump, whether the cooling fan is working properly, the pressure of the pipeline, and the liquid temperature of the pipeline.

[0014] Furthermore, in the liquid cooling system used in the aforementioned high-power charging equipment, the control board communicates with the charging equipment interface in real time via a 485 interface, specifically by exchanging equipment status parameters such as temperature, pressure, liquid level, and on / off states in real time.

[0015] The beneficial effects of this utility model are: This solution provides a liquid cooling system for high-power charging equipment, which has the following advantages: 1. Highly Efficient Heat Dissipation: Utilizing a combination of liquid and air cooling technologies, it effectively solves problems such as heat generation and low charging efficiency in high-power charging equipment. The radiator structure is rationally designed with symmetrical installation of the bottom, side, and top frames. The high-temperature heat dissipation pipes consist of vertical pipe sections and bends, with the bends positioned in the bottom and top frames respectively. Microchannel heat dissipation plates are installed between the connected vertical pipe sections, enhancing structural strength and overcoming the insufficient strength of existing designs. The inner end of the coolant inlet pipe extends to a high position near the top of the cabinet, while the inner end of the pump suction pipe is located near the bottom of the cabinet, facilitating full circulation of the coolant and improving heat dissipation efficiency. Two parallel cooling fans are installed, with the air intake direction facing the radiator. Additionally, several ventilation holes are provided on the side panels of the cabinet, further enhancing the heat dissipation effect.

[0016] 2. Optimized Space Layout: The water tank, radiator, and cooling fans are installed side-by-side inside the cabinet, with a water pump installed below the water tank. The compact layout of all components improves space utilization and solves the problem of low space utilization in existing high-power charging equipment liquid cooling systems. One-way valves are installed on both the inlet and outlet coolant pipes to prevent backflow and ensure normal system operation. All components of the radiator are made of stainless steel, offering strong corrosion resistance, reducing the risk of liquid leakage, and improving system stability.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a front view schematic diagram of the present invention with the cabinet omitted; Figure 3 This is a structural schematic diagram of the present invention, omitting the latter angle of the cabinet; Figure 4 This is a structural schematic diagram of the present invention from another angle after omitting the cabinet; Figure 5 This is a schematic diagram of the structure of the radiator in this utility model; Figure 6This is a front view schematic diagram of the radiator in this utility model; In the attached diagram, the components represented by each number are as follows: 1-Rack, 2-Water tank, 3-Coolant inlet pipe, 4-Pump suction pipe, 5-Water pump, 6-Pump outlet pipe, 7-Radiator, 701-Bottom frame, 702-Side frame, 703-Top frame, 704-High temperature heat pipe, 705-Microchannel heat sink, 8-Coolant outlet pipe, 9-Cooling fan. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 1-6 As shown, this embodiment provides a liquid cooling system for a high-power charging device, including a cabinet 1, a water tank 2, a coolant inlet pipe 3, a pump suction pipe 4, a water pump 5, a pump outlet pipe 6, a radiator 7, a coolant outlet pipe 8, and a cooling fan 9. The water tank 2, radiator 7, and cooling fan 9 are installed side-by-side inside the cabinet 1. The water pump 5 is installed below the water tank 2. The bottom of the water tank 2 is connected to the coolant inlet pipe 3, which penetrates the cabinet 1, and the pump suction pipe 4, which connects to the suction end of the water pump 5. The output end of the water pump 5 is connected to the inlet end of the radiator 7 via the pump outlet pipe 6. The outlet end of the radiator 7 is connected to the coolant outlet pipe 8, which penetrates the cabinet 1.

[0022] In this embodiment, the radiator 7 includes a bottom frame 701, side frames 702, a top frame 703, a high-temperature heat dissipation pipe 704, and a microchannel heat dissipation plate 705. Two side frames 702 are symmetrically installed between the bottom frame 701 and the top frame 703. The high-temperature heat dissipation pipe 704 is composed of several vertical pipe sections arranged in parallel and elbows located between two adjacent vertical pipe sections. The elbows located in the lower layer are located in the bottom frame 701, and the elbows located in the upper layer are located in the top frame 703. A microchannel heat dissipation plate 705 is installed between two connected vertical pipe sections. The microchannel heat dissipation plate 705 is composed of multiple folded plates, and each folded plate has a microchannel inside that communicates with the inner cavity of the two vertical pipe sections. The bottom frame 701 has an inlet 706 and an outlet 707 that communicate with both ends of the high-temperature heat dissipation pipe 704, respectively.

[0023] In this embodiment, the water tank 2 consists of a tank body and a cover fitted on its top. The cover integrates a temperature sensor for detecting the water temperature inside the tank and a liquid level sensor for detecting the water level inside the tank.

[0024] In this embodiment, the vertical cross-section of the inner cavity of the box is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the cross-section of the inner cavity of the box is a rounded rectangle structure.

[0025] In this embodiment, there are two cooling fans 9 arranged side by side, and the air intake direction of the cooling fans 9 is towards the radiator.

[0026] In this embodiment, each side panel of the cabinet 1 has several ventilation and heat dissipation holes.

[0027] In this embodiment, the inner end of the coolant inlet pipe 3 extends to a high position near the tank cover of the water tank 2, and the inner end of the pump suction pipe 4 is near a low position near the bottom surface of the water tank 2.

[0028] In this embodiment, the inlet coolant pipe 3 and the outlet coolant pipe 8 are each equipped with a one-way valve, a temperature sensor, and a pressure sensor.

[0029] In this embodiment, the bottom frame 701, side frame 702, top frame 703, high-temperature heat dissipation pipe 704, and microchannel heat dissipation plate 705 of the radiator 7 are all made of stainless steel.

[0030] In this embodiment, a PCBA control board is installed on the outside of the cabinet 1. The control board can control and monitor the speed of the water pump, whether the cooling fan 9 is working properly, the pressure monitoring of the pipeline, and the liquid temperature monitoring of the pipeline.

[0031] In this embodiment, the control board communicates with the charging device interface in real time via a 485 interface, specifically by exchanging device status parameters such as temperature, pressure, liquid level, and on / off states.

[0032] In this embodiment, the optimized design principle of the water tank structure is as follows: Trapezoidal Body and Rounded Right Angles: The water tank features a unique trapezoidal body design. This shape perfectly fits into irregularly shaped spaces often found inside server racks (such as corners near door hinges or cable management areas), maximizing space utilization. The four right angles are rounded, offering several advantages: Eliminating stress concentration: The rounded corner structure can effectively disperse internal water pressure and external stress, significantly improving the structural strength and pressure resistance of the water tank, and preventing cracks from forming under long-term use or pressure fluctuations.

[0033] Optimize fluid dynamics: Rounded corners reduce turbulence and dead zones in the coolant flow within the tank, resulting in smoother flow, improved heat dissipation efficiency, and reduced sedimentation.

[0034] Easy to clean and manufacture: The rounded corners are easier to clean and less prone to accumulating dirt. They also make welding or one-piece molding easier during manufacturing, reducing process complexity.

[0035] In this embodiment, the water tank is fixed in the following way, and the design principle of the liquid inlet and outlet is as follows: Innovative fixing method: The water tank is secured to the top side panel of the rack using specially designed "ears" and supported at the bottom by sheet metal brackets. The fixing points are arranged according to the shape and center of gravity of the trapezoidal water tank to ensure stability and prevent wobbling during transportation, installation, and operation. This fixing method, combined with the trapezoidal structure, allows it to be firmly "embedded" in a specific position within the rack, rather than simply suspended, enhancing the overall rigidity and shock resistance of the rack.

[0036] The integrated liquid inlet and outlet design simplifies external piping connections: all external hoses or rigid pipes can be accessed from the same side of the cabinet, greatly simplifying the docking process between the cabinet and the external cooling system and reducing cabinet deployment time.

[0037] Easy to maintain and manage: Maintenance personnel can complete the maintenance of the coolant circuit by operating in one area. The pipeline route is clear and will not interfere with other equipment in the cabinet (such as power cables and data cables).

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A liquid cooling system for a high-power charging device, characterized in that, The system includes a cabinet, a water tank, a coolant inlet pipe, a pump suction pipe, a water pump, a pump outlet pipe, a radiator, a coolant outlet pipe, and a cooling fan. The water tank, radiator, and cooling fan are installed side by side inside the cabinet. The water pump is installed below the water tank in the cabinet. The bottom of the water tank is equipped with a coolant inlet pipe that penetrates the cabinet and a pump suction pipe that connects to the suction end of the water pump. The output end of the water pump is connected to the inlet end of the radiator via the pump outlet pipe. The outlet end of the radiator is equipped with a coolant outlet pipe that penetrates the cabinet. The radiator includes a bottom frame, side frames, a top frame, high-temperature heat dissipation pipes, and a microchannel heat dissipation plate. Two side frames are symmetrically installed between the bottom frame and the top frame. The high-temperature heat dissipation pipe is composed of several vertical pipe sections arranged in parallel and elbows located between two adjacent vertical pipe sections. The elbows located in the lower layer are located in the bottom frame, and the elbows located in the upper layer are located in the top frame. A microchannel heat dissipation plate is installed between two connected vertical pipe sections. The bottom frame has a liquid inlet and a liquid outlet that are respectively connected to both ends of the high-temperature heat dissipation pipe.

2. The liquid cooling system for a high-power charging device according to claim 1, characterized in that, The water tank consists of a tank body and a lid fitted on top of it. The lid integrates a temperature sensor for detecting the water temperature inside the tank and a liquid level sensor for detecting the water level inside the tank.

3. The liquid cooling system for a high-power charging device according to claim 2, characterized in that, The vertical cross-section of the inner cavity of the box is an isosceles trapezoidal structure that is wider at the top and narrower at the bottom, and the cross-section of the inner cavity of the box is a rounded rectangle.

4. The liquid cooling system for a high-power charging device according to claim 3, characterized in that, There are two cooling fans arranged side by side, and the air intake direction of the cooling fans is towards the radiator.

5. The liquid cooling system for a high-power charging device according to claim 4, characterized in that, Each side panel of the cabinet has several ventilation and heat dissipation holes.

6. The liquid cooling system for a high-power charging device according to claim 5, characterized in that, The inner end of the cooling liquid inlet pipe extends to a high position near the tank cover of the water tank, and the inner end of the pump suction pipe is located near the low position of the bottom surface of the water tank.

7. The liquid cooling system for a high-power charging device according to claim 6, characterized in that, The inlet and outlet coolant pipes are each equipped with a check valve, a temperature sensor, and a pressure sensor.

8. The liquid cooling system for a high-power charging device according to claim 7, characterized in that, The bottom frame, side frame, top frame, high-temperature heat pipes, and microchannel heat sink of the radiator are all made of stainless steel.

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