Liquid-cooled cabinet

Abstract

This utility model discloses a liquid-cooled cabinet, including an electrical control box, a heat exchanger, and a delivery pump. The heat exchanger cools the electrical control box, which houses electrical control equipment. A liquid delivery pipeline seals between the delivery pump and the heat exchanger. The delivery pump delivers liquid cooling medium to the heat exchanger through the delivery pipeline. A pressure detection device is connected to the delivery pipeline. The pressure detection device includes a control valve, a pressure gauge, and an inlet pipe. The inlet pipe connects to an external gas delivery device, and the control valve controls the opening and closing of the inlet pipe. When the delivery pipeline is not connected to the delivery pump, the inlet pipe connects to the delivery pipeline and introduces a preset volume of gas into it. The pressure gauge detects the gas pressure in the inlet pipe and the delivery pipeline to check the airtightness of the delivery pipeline. By installing a pressure detection device on the delivery pipeline, the liquid-cooled cabinet of this utility model can safely, reliably, and conveniently perform pipeline pressure testing.

Description

Technical Field

[0001] This utility model relates to the field of liquid-cooled heat dissipation cabinet technology, and specifically to a liquid-cooled cabinet. Background Technology

[0002] Liquid-cooled racks are enclosed rack systems that use liquid media (coolant, cooling oil, etc.) to dissipate heat from servers, chips, and other heat-generating devices inside the rack. Compared to traditional air-cooled racks, liquid-cooled racks can more efficiently meet the heat dissipation needs of high-power-density devices.

[0003] In the existing technology, the liquid delivery pipeline of the liquid-cooled cabinet needs to be tested by introducing gas into the pipeline and conducting pipeline pressure tests. The pipeline pressure test of the existing technology can only be carried out after the pipeline port is disassembled and reinstalled, which has poor reliability, safety and convenience, and is not conducive to maintenance during long-term operation.

[0004] Therefore, it is essential to design a liquid-cooled cabinet that can safely, reliably, and conveniently perform pipeline pressure testing. Utility Model Content

[0005] The present invention aims to solve one of the technical problems of the prior art to a certain extent. To this end, the present invention provides a liquid-cooled cabinet that can safely, reliably and conveniently perform pipeline pressure testing.

[0006] Firstly, to achieve the aforementioned objectives, this utility model proposes a liquid-cooled cabinet, comprising an electrical control box, a heat exchanger, and a delivery pump. The heat exchanger is used to cool the electrical control box, which is used to install electrical control equipment. A liquid delivery pipeline is sealed between the delivery pump and the heat exchanger. The delivery pump delivers liquid cooling medium to the heat exchanger through the liquid delivery pipeline. A pressure detection device is connected to the liquid delivery pipeline. The pressure detection device includes a control valve, a pressure gauge, and an inlet pipe. The inlet pipe is used to connect to an external gas delivery device. The control valve is used to control the opening and closing of the inlet pipe. When the liquid delivery pipeline is not connected to the delivery pump, the inlet pipe connects to the liquid delivery pipeline and inputs a preset volume of gas into the liquid delivery pipeline. The pressure gauge is used to detect the gas pressure in the inlet pipe and the liquid delivery pipeline to detect the airtightness of the liquid delivery pipeline.

[0007] In this technical solution, a heat exchanger is used to cool the electronic components inside the electrical control box. A delivery pump and a liquid delivery pipeline are used to deliver a low-temperature cooling medium to the heat exchanger, which then exchanges heat with the electrical control box and is sent back to an external refrigeration unit. A pressure detection device is installed on the liquid delivery pipeline to detect its sealing performance. The air inlet pipe of the pressure detection device is connected to an external gas delivery device. When the liquid delivery pipeline is emptied, the external gas delivery device inputs detection gas into the air inlet pipe. The control valve is opened, allowing the external gas delivery device to inject a preset volume of detection gas into the liquid delivery pipeline. The gas pressure in the liquid delivery pipeline is read by a pressure gauge to achieve the purpose of safely, accurately, and quickly detecting the sealing performance of the liquid delivery pipeline.

[0008] Preferably, the air intake pipe includes an air intake end, which is used for connecting to an external air supply device. The air intake end is provided with a groove along the outer wall of the pipe so that the air intake pipe can be inserted into and engaged with the external air supply device.

[0009] Preferably, the air inlet pipe includes a tee connector, the tee connector includes a straight pipe and a branch pipe, the two ends of the straight pipe are respectively sealed and connected to the control valve and the infusion pipeline, and the branch pipe is sealed and connected to the pressure gauge.

[0010] Preferably, the heat exchanger is a plate heat exchanger, and the plate heat exchanger has a plurality of liquid flow channels inside, which are connected to the liquid delivery pipeline.

[0011] Preferably, the electrical control box includes a back plate, which abuts against the plate heat exchanger.

[0012] Preferably, the liquid cooling cabinet further includes a housing, and the electrical control box, heat exchanger, liquid delivery pipeline and pressure detection device are all located inside the housing, and a support is also provided at the bottom of the housing.

[0013] Preferably, the bracket is provided with an oil receiving tray, which is used to collect the coolant leaking from the infusion pipeline.

[0014] Preferably, the oil receiving pan has a downwardly recessed portion, and a sensor bracket is provided in the recessed portion for mounting a liquid level sensor.

[0015] Preferably, the fluid delivery pipeline includes an inlet pipe and a outlet pipe. The inlet pipe is used to deliver low-temperature coolant to the heat exchanger, and the outlet pipe is used to discharge high-temperature coolant from the heat exchanger. Both the inlet pipe and the outlet pipe are equipped with pressure detection devices.

[0016] Preferably, the straight pipe is welded to or threaded to the infusion pipeline.

[0017] These features and advantages of this utility model will be disclosed in detail in the following specific embodiments and accompanying drawings. The preferred embodiments or means of this utility model will be shown in detail in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of this invention. In addition, each of these features, elements and components appearing in the following text and drawings has multiple components and is labeled with different symbols or numbers for convenience, but all represent parts with the same or similar structure or function. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings:

[0019] Figure 1 This is a perspective view of a liquid-cooled cabinet according to this embodiment;

[0020] Figure 2 This is a front view of the liquid-cooled cabinet in this embodiment;

[0021] Figure 3 This is a left view of the liquid-cooled cabinet in this embodiment;

[0022] Figure 4 This is a perspective view of the pressure detection device in this embodiment.

[0023] Among them, 110 is the electrical control box; 120 is the heat exchanger; 130 is the transfer pump; 140 is the liquid delivery pipeline; 150 is the pressure detection device; 151 is the control valve; 152 is the pressure gauge; 153 is the air inlet pipe; 1531 is the slot; 1532 is the tee connector; 200 is the housing; 210 is the bracket; 220 is the oil receiving pan; and 230 is the sensor bracket. Detailed Implementation

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described are intended to explain the invention and should not be construed as limiting the scope of this utility model.

[0025] The terms "an embodiment," "example," or "trademark" used in this specification refer to a particular feature, structure, or characteristic described in connection with the embodiment itself that may be included in at least one embodiment disclosed in this patent. The phrase "in an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0026] like Figures 1 to 3As shown, this embodiment proposes a liquid-cooled cabinet, including an electrical control box 110, a heat exchanger 120, and a transfer pump 130. The heat exchanger 120 is used to cool the electrical control box 110, which is used to install electrical control equipment. A liquid delivery pipeline 140 is sealed and connected between the transfer pump 130 and the heat exchanger 120. The transfer pump 130 delivers liquid cooling medium to the heat exchanger 120 through the liquid delivery pipeline 140. A pressure detection device 150 is connected to the liquid delivery pipeline 140. 50 includes a control valve 151, a pressure gauge 152, and an air inlet pipe 153. The air inlet pipe 153 is used to connect to an external gas delivery device. The control valve 151 is used to control the opening and closing of the air inlet pipe 153. When the infusion pipeline 140 is not connected to the delivery pump 130, the air inlet pipe 153 is connected to the infusion pipeline 140 and inputs a preset volume of gas into the infusion pipeline 140. The pressure gauge 152 is used to detect the gas pressure in the air inlet pipe 153 and the infusion pipeline 140 to detect the airtightness of the infusion pipeline 140. The electrical control box 110 is equipped with a continuously heating electrical control device. It exchanges heat with the electrical control box 110 through a heat exchanger 120 to dissipate heat from the electrical control box 110. The heat exchanger 120 contains a circulating cooling medium. The heat exchanger 120 is connected to an external cooling device and a delivery pump 130 via pipeline. The external cooling device is a refrigeration device used to cool the cooling medium. The low-temperature cooling medium enters the heat exchanger 120 and exchanges heat with the electrical control box 110 to absorb the heat energy generated by the electrical control device in the electrical control box 110. Then, it flows back from the heat exchanger 120 to the external cooling device for further cooling. In this embodiment, the specific type of cooling medium is not limited. The cooling medium can be a liquid cooling medium such as ethylene glycol aqueous solution, propylene glycol aqueous solution, oil-based coolant, or fluorinated liquid. Because the pressure of the liquid cooling medium in the pipeline is relatively high, leakage is likely to occur. Furthermore, the liquid delivery pipeline 140 and the heat exchanger 120 require regular cleaning and maintenance to prevent blockage. Therefore, after the equipment is installed and maintained, the sealing performance of the liquid delivery pipeline 140 needs to be tested by injecting gas into the liquid delivery pipeline 140 and checking the gas pressure (without liquid cooling medium injected into the liquid delivery pipeline 140) to prevent coolant leakage when the liquid-cooled cabinet is in operation.

[0027] In this technical solution, the electronic components in the electrical control box 110 are cooled by the heat exchanger 120. The delivery pump 130 and the liquid delivery pipeline 140 are used to deliver a low-temperature cooling medium to the heat exchanger 120 and exchange heat with the electrical control box 110 before sending it back to the external refrigeration device. The sealing performance of the liquid delivery pipeline 140 is detected by a pressure detection device 150 installed on the liquid delivery pipeline 140. The air inlet pipe 153 of the pressure detection device 150 is connected to an external gas delivery device. When the liquid delivery pipeline 140 is emptied, the external gas delivery device inputs detection gas into the air inlet pipe 153, and the control valve 151 is opened to allow the external gas delivery device to inject a preset volume of detection gas into the liquid delivery pipeline 140. The gas pressure in the liquid delivery pipeline 140 is read by the pressure gauge 152 to achieve the purpose of safely, accurately and quickly detecting the sealing performance of the liquid delivery pipeline 140.

[0028] In some embodiments, as shown in 1 and 4, the air intake pipe 153 includes an air intake end for connecting to an external air supply device. The air intake end is provided with a groove 1531 along the outer wall of the pipe, allowing the air intake pipe 153 to be inserted into and engaged with the external air supply device. Specifically, the external air supply device is connected to the air intake end via a flexible hose. A connector is provided at the end of the flexible hose, and an elastic clamp is provided on the connector. The elastic clamp forms a sleeve connection when the air intake pipe 153 is inserted into the end of the flexible hose. The elastic clamp is engaged within the groove 1531, forming a sealed pipe connection between the flexible hose and the air intake pipe 153.

[0029] In some embodiments, such as Figure 1 , 4 As shown, the air inlet pipe 153 includes a three-way connector 1532, which comprises a straight pipe and a branch pipe. The two ends of the straight pipe are respectively sealed and connected to the control valve 151 and the infusion pipeline 140, and the branch pipe is sealed and connected to the pressure gauge 152. Specifically, the straight pipe is welded to or threaded into the infusion pipeline 140. An external gas supply device inputs detection gas into the air inlet pipe 153 through a gas supply pipeline. The external gas supply device includes an air pump, and the detection gas is air. The air enters the infusion pipeline 140 after passing through the control valve 151 and the three-way connector 1532. A pressure gauge 152 is installed on the branch pipe of the three-way connector 1532, and the detection end of the pressure gauge 152 is inserted into the straight pipe of the three-way connector 1532 to detect the gas pressure inside the straight pipe.

[0030] In some embodiments, such as Figure 2As shown, the heat exchanger 120 is a plate heat exchanger 120, which has several liquid flow channels inside, and these channels are connected to the liquid delivery pipeline 140. The plate heat exchanger 120 has the advantages of high heat transfer coefficient, compact structure, large heat transfer area per unit volume, and small footprint. However, the relatively narrow liquid flow channels inside the plate heat exchanger 120 are prone to blockage by particulate matter. Therefore, the plate heat exchanger 120 needs to be cleaned and maintained regularly, and the sealing performance of the heat exchanger 120 and the liquid delivery pipeline 140 needs to be tested after cleaning and maintenance.

[0031] In some embodiments, such as Figures 1 to 3 As shown, the electrical control box 110 includes a back plate, which abuts against the plate heat exchanger 120. In order to improve the heat exchange efficiency of the plate heat exchanger 120, the back plate of the electrical control box 110 is attached to the plate heat exchanger 120, so that the heat generated by the electrical control equipment in the electrical control box 110 can be quickly absorbed by the liquid cooling medium in the plate heat exchanger 120.

[0032] In some embodiments, such as Figure 1 As shown, the liquid-cooled cabinet also includes a housing 200. The electrical control box 110, heat exchanger 120, liquid delivery pipeline 140, and pressure detection device 150 are all located inside the housing 200. A bracket 210 is also provided at the bottom of the housing 200. Specifically, the housing 200 includes several cabinet doors. The housing 200 is used to protect the electrical control box 110, heat exchanger 120, liquid delivery pipeline 140, and pressure detection device 150, preventing them from being exposed. The bottom of the bracket 210 is provided with casters, which facilitates the handling and movement of the liquid-cooled cabinet.

[0033] In some embodiments, the bracket 210 is provided with an oil receiving tray 220, which is used to collect coolant leaking from the liquid delivery pipeline 140. The oil receiving tray 220 has a downwardly recessed portion, within which a sensor bracket 230 is installed for mounting a liquid level sensor. By providing the oil receiving tray 220 with the recessed portion to collect leaked liquid media from the liquid-cooled cabinet, the leaked liquid media can be quickly collected into the recessed portion of the oil receiving tray 220, preventing liquid media from leaking to the ground and causing environmental pollution and safety hazards. A leak sensor, which detects changes in liquid level, is installed in the recessed portion of the oil receiving tray 220 to detect coolant leakage from the liquid-cooled cabinet. When a liquid media leak occurs in the liquid-cooled cabinet, the detection signal emitted by the leak sensor alerts the user, improving safety.

[0034] In some embodiments, the liquid delivery pipeline 140 includes an inlet pipe and a outlet pipe. The inlet pipe is used to deliver low-temperature coolant to the heat exchanger 120, and the outlet pipe is used to discharge high-temperature coolant from the heat exchanger 120. Pressure detection devices 150 are installed on both the inlet and outlet pipes. Installing pressure detection devices 150 on the inlet and outlet pipes of the liquid delivery pipeline 140 improves the accuracy of pressure detection and ensures that both the inlet and outlet pipes of the liquid delivery pipeline 140 have good sealing performance, preventing leakage of the liquid cooling medium.

[0035] In summary, this embodiment uses a heat exchanger 120 to cool the electronic components inside the electrical control box 110. A delivery pump 130 and a liquid delivery pipeline 140 deliver a low-temperature cooling medium to the heat exchanger 120, which then exchanges heat with the electrical control box 110 before being returned to an external refrigeration unit. A pressure detection device 150 is installed on the liquid delivery pipeline 140 to detect its sealing performance. The inlet pipe 153 of the pressure detection device 150 is connected to an external gas delivery device. When the liquid delivery pipeline 140 is emptied, the external gas delivery device inputs detection gas into the inlet pipe 153, opening the control valve 151 to inject a preset volume of detection gas into the liquid delivery pipeline 140. The pressure gauge 152 reads the gas pressure in the liquid delivery pipeline 140, thus achieving the purpose of safely, accurately, and quickly detecting the sealing performance of the liquid delivery pipeline 140. This provides a liquid-cooled cabinet capable of safely, reliably, and conveniently performing pipeline pressure testing.

[0036] The above are merely specific embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Those skilled in the art should understand that this utility model includes, but is not limited to, the contents described in the accompanying drawings and the specific embodiments above. Any modifications that do not depart from the functional and structural principles of this invention will be included within the scope of the claims.

Claims

1. A liquid cooling cabinet comprising an electric control box (110), a heat exchanger (120) for cooling the electric control box (110) and a delivery pump (130), the electric control box (110) being intended for mounting electric power control devices, characterized in that, A liquid delivery pipeline (140) is sealed and connected between the delivery pump (130) and the heat exchanger (120). The delivery pump (130) delivers liquid cooling medium to the heat exchanger (120) through the liquid delivery pipeline (140). A pressure detection device (150) is connected to the liquid delivery pipeline (140). The pressure detection device (150) includes a control valve (151), a pressure gauge (152), and an air inlet pipe (153). The air inlet pipe (153) is used to connect to an external... The gas delivery device includes a control valve (151) for controlling the opening and closing of the air inlet pipe (153). When the liquid delivery pipeline (140) is not connected to the delivery pump (130), the air inlet pipe (153) is connected to the liquid delivery pipeline (140) and inputs a preset volume of gas into the liquid delivery pipeline (140). The pressure gauge (152) is used to detect the gas pressure in the air inlet pipe (153) and the liquid delivery pipeline (140) to detect the airtightness of the liquid delivery pipeline (140).

2. The liquid-cooled cabinet of claim 1, wherein, The air inlet pipe (153) includes an air inlet end, which is used to connect the pipe to an external air supply device. The air inlet end is provided with a slot (1531) along the outer wall of the pipe so that the air inlet pipe (153) can be inserted into the external air supply device and locked in place.

3. The liquid-cooled cabinet according to claim 1, characterized in that, The air inlet pipe (153) includes a three-way connector (1532), which includes a straight pipe and a branch pipe. The two ends of the straight pipe are respectively sealed and connected to the control valve (151) and the infusion pipeline (140), and the branch pipe is sealed and connected to the pressure gauge (152).

4. The liquid-cooled cabinet according to claim 1, characterized in that, The heat exchanger (120) is a plate heat exchanger, and the plate heat exchanger has several liquid flow channels inside, which are connected to the liquid delivery pipeline (140).

5. The liquid-cooled cabinet according to claim 4, characterized in that, The electrical control box (110) includes a back plate that abuts against the plate heat exchanger.

6. The liquid-cooled cabinet according to any one of claims 1 to 5, characterized in that, The liquid cooling cabinet also includes a housing (200), and the electrical control box (110), heat exchanger (120), liquid delivery pipeline (140) and pressure detection device (150) are all located inside the housing (200). A bracket (210) is also provided at the bottom of the housing (200).

7. The liquid-cooled cabinet according to claim 6, characterized in that, The bracket (210) is provided with an oil receiving tray (220), which is used to collect the coolant leaking from the liquid delivery pipeline (140).

8. The liquid-cooled cabinet according to claim 7, characterized in that, The oil receiving tray (220) has a downwardly recessed portion, and a sensor bracket (230) is provided in the recessed portion. The sensor bracket (230) is used to install a liquid level sensor.

9. The liquid-cooled cabinet according to any one of claims 1 to 5, characterized in that, The liquid delivery pipeline (140) includes an inlet pipe and a outlet pipe. The inlet pipe is used to deliver low-temperature coolant to the heat exchanger (120), and the outlet pipe is used to discharge high-temperature coolant from the heat exchanger (120). Both the inlet pipe and the outlet pipe are equipped with pressure detection devices (150).

10. The liquid-cooled cabinet according to claim 3, characterized in that, The straight pipe is welded to or threaded to the infusion pipeline (140).

Images