Detection device and liquid cooling cabinet

Abstract

The utility model relates to the technical field of detection, and discloses a detection device and a liquid cooling cabinet, the detection device comprises a circuit board, a first sensing unit and a second sensing unit, the first sensing unit is one of a temperature sensing device, a gas pressure sensing device, a liquid level detection assembly and a conductivity electrode assembly, and the second sensing unit is one of a gas pressure sensing device, a liquid level detection assembly and a conductivity electrode assembly. The second sensing unit is the other one of a temperature sensing device, a gas pressure sensing device, a liquid level detection assembly and a conductivity electrode assembly; the circuit board is provided with a first detection circuit and a second detection circuit, the first induction unit and the second induction unit are arranged on the circuit board, the first detection circuit is electrically connected with the first induction unit, and the second detection circuit is electrically connected with the second induction unit. According to the detection device and the liquid-cooled cabinet, the problem that a plurality of mutually independent sensors occupy a large space in the liquid-cooled cabinet is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field, especially a kind of detection device and liquid cooling cabinet. BACKGROUND

[0002] With the rapid development of computing technology, in artificial intelligence, big data analysis and cloud computing and other fields, the server power density of data center is rising, which makes the immersion liquid cooling technology become the better heat dissipation scheme recognized in the industry. The core of immersion liquid cooling technology is to continuously take away the heat generated by the server through the cooling liquid source in the liquid cooling cabinet. Specifically, in order to avoid server and other equipment downtime due to high temperature, the temperature, conductivity, liquid level height and other parameters of the liquid in the liquid cooling cabinet need to be monitored. However, in the related art, different sensors need to be arranged to monitor different parameters, and multiple independent sensors will occupy a large space in the liquid cooling cabinet, which is not conducive to the miniaturization of the liquid cooling cabinet. SUMMARY

[0003] The utility model provides a kind of detection device and liquid cooling cabinet, for improving the problem that multiple independent sensors occupy larger space in liquid cooling cabinet.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A detection device, comprising a circuit board, a first sensing unit and a second sensing unit, wherein the first sensing unit is one of a temperature sensing device, a gas pressure sensing device, a liquid level detection assembly and an electrical conductivity electrode assembly, and the second sensing unit is another one of the temperature sensing device, the gas pressure sensing device, the liquid level detection assembly and the electrical conductivity electrode assembly; the circuit board has a first detection circuit and a second detection circuit, the first sensing unit and the second sensing unit are arranged on the circuit board, the first detection circuit is electrically connected with the first sensing unit, and the second detection circuit is electrically connected with the second sensing unit.

[0006] In this scheme, the detection components for two of pressure detection, temperature detection, conductivity detection and liquid level detection are arranged on the circuit board, and the corresponding detection circuits are integrated in the circuit board. Compared with two independent detection devices, the volume is smaller, which is conducive to the miniaturization of the liquid cooling cabinet. In addition, the circuits for two detections are integrated on the circuit board, which can be connected with external cables through the circuit board, which is conducive to reducing material costs and reducing the number of outgoing lines of the detection device in the liquid cooling cabinet. The reduction of outgoing lines of the liquid cooling cabinet means the reduction of leakage points, so this scheme can also reduce the risk of cooling liquid leakage in the liquid cooling cabinet.

[0007] Optionally, the first sensing unit is the liquid level detection assembly, and the first detection circuit is a liquid level detection circuit.

[0008] Optionally, the second sensing unit is the electric conductivity electrode assembly, and the second detection circuit is an electric conductivity detection circuit.

[0009] Optionally, the detection device further comprises a third sensing unit, the third sensing unit comprises the temperature sensing device, the circuit board further has a temperature detection circuit, the temperature sensing device is arranged on the circuit board and connected with the temperature detection circuit.

[0010] Optionally, the temperature sensing device is arranged on the first end of the circuit board.

[0011] Optionally, the detection device further comprises a fourth sensing unit, the fourth sensing unit comprises the gas pressure sensing device, the circuit board further has a pressure detection circuit, and the gas pressure sensing device is connected with the pressure detection circuit.

[0012] Optionally, the gas pressure sensing device is arranged on the second end of the circuit board, wherein the second end is opposite to the first end.

[0013] Optionally, the liquid level detection assembly comprises a magnetic float and a plurality of dry reed tubes, the circuit board comprises a strip-shaped portion extending along a direction from the first end to the second end, the plurality of dry reed tubes are arranged on a surface of the strip-shaped portion and arranged along a length direction of the strip-shaped portion, and the magnetic float is sleeved on an outer periphery of the strip-shaped portion and can move relative to the strip-shaped portion along the length direction of the strip-shaped portion.

[0014] Optionally, the second end is provided with a cable connecting portion, each detection circuit is connected with the cable connecting portion, and the cable connecting portion is used for connecting with an external cable.

[0015] The utility model also provides a liquid cooling cabinet, the liquid cooling cabinet includes cabinet body and any one detection device provided in above technical scheme, the detection device is set up in the cabinet body and is fixedly connected to one end of the side wall of the cabinet body near the top wall. The liquid cooling cabinet includes the detection device, therefore, at least can reach the technical effect that the detection device can reach, here no longer tediously. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a perspective view of a detection device provided by the embodiment of the application;

[0017] Figure 2 It is a front view of the detection device shown in the figure; Figure 1

[0018] Figure 3 ​A structural schematic diagram of a liquid cooling cabinet provided by an embodiment of the present application, wherein one side wall of a cabinet body is omitted.

[0019] Icon: 1-circuit board; 11-cable connection part; 2-temperature sensing device; 3-gas pressure sensing device; 4-liquid level detection assembly; 41-magnetic float; 42-dry reed; 5-electricity conducting electrode assembly; 100-cabinet body; 110-fixing support; 111-bottom plate; 112-side plate. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0021] Figure 1 A three-dimensional structural schematic diagram of a detection device provided by an embodiment of the present application, Figure 2 is shown in the drawings. Figure 1 The front view of the detection device is shown in the drawings. Figure 1 and Figure 2 The detection device includes a circuit board 1, a first sensing unit and a second sensing unit. The first sensing unit is one of a temperature sensing device 2, a gas pressure sensing device 3, a liquid level detection assembly 4 and an electricity conducting electrode assembly 5 (the electricity conducting electrode assembly 5 is used for detecting the impurity condition of liquid), and the second sensing unit is another one of the temperature sensing device 2, the gas pressure sensing device 3, the liquid level detection assembly 4 and the electricity conducting electrode assembly 5. For example, one of the first sensing unit and the second sensing unit can be the temperature sensing device 2, and the other one can be the gas pressure sensing device 3; or one of the first sensing unit and the second sensing unit can be the temperature sensing device 2, and the other one can be the liquid level detection assembly 4; or one of the first sensing unit and the second sensing unit can be the temperature sensing device 2, and the other one can be the electricity conducting electrode assembly 5; or one of the first sensing unit and the second sensing unit can be the gas pressure sensing device 3, and the other one can be the liquid level detection assembly 4; or one of the first sensing unit and the second sensing unit can be the gas pressure sensing device 3, and the other one can be the electricity conducting electrode assembly 5; or one of the first sensing unit and the second sensing unit can be the liquid level detection assembly 4, and the other one can be the electricity conducting electrode assembly 5, and so on.

[0022] Further, the circuit board 1 has a first detection circuit and a second detection circuit, the first sensing unit and the second sensing unit are both arranged on the circuit board 1, and the first detection circuit is electrically connected with the first sensing unit to realize corresponding detection function, and the second detection circuit is electrically connected with the second sensing unit to realize corresponding detection function. In this scheme, two detection components of pressure detection, temperature detection, conductivity detection and liquid level detection are arranged on the circuit board 1, and the corresponding detection circuits are integrated in the circuit board 1. Compared with two independent detection devices, the volume is smaller, which is conducive to the miniaturization of the liquid cooling cabinet.

[0023] In addition, the two detection circuits are integrated on the circuit board 1, which can be connected with external cables and the like through a unified cable interface through the circuit board 1, which is conducive to reducing material costs and reducing the number of outgoing lines of the detection device in the liquid cooling cabinet. The reduction of the outgoing line number of the liquid cooling cabinet means the reduction of the leakage point, so this scheme can also reduce the risk of cooling liquid leakage in the liquid cooling cabinet.

[0024] Exemplarily, as shown in Figure 1 , the first sensing unit is the liquid level detection assembly 4, and the first detection circuit is the liquid level detection circuit. The second sensing unit is the conductivity electrode assembly 5, and the second detection circuit is the conductivity detection circuit.

[0025] As shown in Figure 1 , in some implementations, the detection device further includes a third sensing unit, the third sensing unit includes a temperature sensing device 2, and the circuit board 1 further has a temperature detection circuit. The temperature sensing device 2 is arranged on the circuit board 1 and connected with the temperature detection circuit to realize the function of temperature detection. In this scheme, the detection components of temperature detection, conductivity detection and liquid level detection are arranged on the circuit board 1, and the corresponding detection circuits are integrated in the circuit board 1. Compared with three independent detection devices, the volume is smaller, which is conducive to further improving the miniaturization of the liquid cooling cabinet.

[0026] Exemplarily, a bimetallic strip can be used as the temperature sensing device 2. When the electric appliance is normally working, the bimetallic strip is in a free state, and the contact is in a closed / open state. When the temperature rises to the action temperature value, the bimetallic element generates internal stress and quickly acts to open / close the contact, thereby cutting on / off the circuit, thereby playing a thermal protection role.

[0027] Exemplarily, the temperature sensing device 2 is arranged at the first end of the circuit board 1. When the detection device is arranged in the liquid cooling cabinet, the first end of the circuit board 1 faces downward, and the temperature sensing device 2 is immersed in the cooling liquid, that is, the temperature of the cooling liquid in the liquid cooling cabinet can be detected. Of course, the temperature sensing device 2 is not limited to be arranged at the first end of the circuit board 1, but can also be arranged at the side or other positions of the circuit board 1.

[0028] In implementation, the conductive electrode assembly 5 can also be arranged at the first end of the circuit board 1.

[0029] When the detection device is arranged in the liquid cooling cabinet, the temperature sensing device 2 cooperates with the temperature detection circuit to detect the temperature of the liquid in the liquid cooling cabinet in real time. When the temperature of the liquid reaches the set alarm value, the temperature sensing device 2 acts, and the temperature detection circuit outputs a power signal to the external cable, so that the server air gap disconnector is disconnected, thereby making the server power off to prevent the server from being damaged.

[0030] When the cooling liquid in the liquid cooling cabinet is a volatile liquid such as fluorinated liquid, the cooling liquid will vaporize after absorbing the heat of the electronic components, changing from liquid state to gaseous state, thereby forming high pressure in the closed space. In order to ensure the safety of the maintenance personnel when opening the cover, it is necessary to control the saturated vapor pressure at the top of the liquid cooling cabinet to be maintained within a relatively safe range. Therefore, as shown in Figure 1 In some implementations, the detection device further includes a fourth sensing unit, which includes a gas pressure sensing device 3, and the circuit board 1 further has a pressure detection circuit, and the gas pressure sensing device 3 is connected with the pressure detection circuit to enable detection of the gas pressure. When the internal pressure of the liquid cooling cabinet is greater than the set safety value, the detection device sends a signal to the external controller through the external cable, and the external controller controls the regulating valve at the top of the liquid cooling cabinet to properly release the gas, thereby relieving the pressure. In this scheme, the detection components for the four detections of gas pressure detection, temperature detection, conductivity detection, and liquid level detection are arranged on the circuit board 1, and the corresponding detection circuits are integrated in the circuit board 1, which can further improve the miniaturization degree of the liquid cooling cabinet.

[0031] Exemplarily, the gas pressure sensing device 3 is arranged at the second end of the circuit board 1, wherein the second end is opposite to the first end. When the detection device is arranged in the liquid cooling cabinet, the second end of the circuit board 1 faces upward, and the gas pressure sensing device 3 is located above the liquid level of the cooling liquid, so that the vapor pressure in the liquid cooling cabinet can be detected. Of course, the gas pressure sensing device 3 is not limited to being arranged at the second end of the circuit board 1, but can also be arranged at the side or other positions of the circuit board 1.

[0032] Please continue to refer to Figure 1 and Figure 2In particular, the circuit board 1 comprises a strip-shaped portion extending along a direction from the first end to the second end, and the liquid level detection assembly 4 can comprise a magnetic float 41 and a plurality of dry reed tubes 42, which are arranged on the surface of the strip-shaped portion and along the length direction of the strip-shaped portion. The magnetic float 41 is sleeved on the outer periphery of the strip-shaped portion and can move relative to the strip-shaped portion along the length direction of the strip-shaped portion. In particular, when the magnetic float 41 floats up and down with the cooling liquid in the liquid cooling cabinet, the dry reed tube 42 closest to the magnetic float 41 is affected by the magnetic field and is closed and turned on, and the resistance value of the liquid level detection circuit connected to the dry reed tube 42 changes. According to different resistance values, the real-time value of the current liquid level height can be calculated.

[0033] In some possible implementation manners, the second end of the circuit board 1 is provided with a cable connection portion 11, and each detection circuit is connected to the cable connection portion 11 to be connected to an external cable through the cable connection portion 11. For example, the external cable is a communication cable, and the communication cable is connected to an external controller (for example, a liquid cooling control system), and the external controller can display corresponding detection parameters.

[0034] In particular, the circuit board 1 can be provided with a liquid level detection chip having a liquid level detection circuit, an electrical conductivity detection chip having an electrical conductivity detection circuit, a pressure detection chip having a pressure detection circuit, and a temperature detection chip having a temperature detection circuit, wherein the pressure detection circuit and the temperature detection circuit can be arranged in the same chip.

[0035] The detection device provided in the embodiment is suitable for submerged liquid cooling equipment using fluorinated liquid, synthetic oil, silicone oil and the like as a cooling medium.

[0036] As shown in Figure 3 The detection device is arranged in the cabinet 100 and fixedly connected to one end of the side wall close to the top wall of the cabinet 100. In the liquid cooling cabinet, the detection device arranges the detection components for two of the pressure detection, temperature detection, electrical conductivity detection and liquid level detection on the circuit board 1, and integrates the corresponding detection circuits in the circuit board 1. Compared with two independent detection devices, the detection device has a smaller volume, which is beneficial to the miniaturization of the liquid cooling cabinet.

[0037] In addition, the circuits for two detections are integrated in the circuit board 1, which can be connected to an external cable and the like through a port on the circuit board 1, which is also beneficial to reducing the material cost, reducing the number of outgoing lines of the detection device in the liquid cooling cabinet. The reduction of the number of outgoing lines of the liquid cooling cabinet means the reduction of the leakage points, so the scheme can also reduce the risk of leakage of the cooling liquid in the liquid cooling cabinet.

[0038] In an embodiment, the fixation of the detection device in the cabinet 100 can be achieved by screw locking. For example,Figure 3 As shown, the detection device further comprises a fixing bracket 110, the cross section of the fixing bracket 110 is U-shaped, the circuit board 1 is fixed on the bottom plate 111 of the fixing bracket 110, two through holes are arranged on one side plate 112 of the fixing bracket 110, the inner surface of the side wall of the cabinet body 100 is provided with screw holes corresponding to the two through holes, and the depth of the screw holes is less than the thickness of the side wall of the cabinet body 100. The fixing bracket 110 is fixed on the inner wall of the cabinet body 100 through screws. In specific implementation, the gas pressure sensing device 3 and the cable connecting part 11 (for example, a cable interface) are located above the liquid level of the cooling liquid, and the temperature sensing device 2 and the electric conductivity electrode assembly 5 are located below the liquid level of the cooling liquid.

[0039] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application belong to the scope of the claims of the present application and the equivalent technologies thereof, the present application also intends to include these modifications and variations.

Claims

1. A detection device, characterized in that, The detection device comprises a circuit board, a first sensing unit and a second sensing unit, wherein the first sensing unit is one of a temperature sensing device, a gas pressure sensing device, a liquid level detection assembly and an electric conductivity electrode assembly, the second sensing unit is another one of the temperature sensing device, the gas pressure sensing device, the liquid level detection assembly and the electric conductivity electrode assembly; the circuit board has a first detection circuit and a second detection circuit, the first sensing unit and the second sensing unit are arranged on the circuit board, the first detection circuit is electrically connected with the first sensing unit, and the second detection circuit is electrically connected with the second sensing unit.

2. The detection device of claim 1, wherein, The first sensing unit is the liquid level detection assembly, and the first detection circuit is a liquid level detection circuit.

3. The detection device of claim 2, wherein, The second sensing unit is the electric conductivity electrode assembly, and the second detection circuit is an electric conductivity detection circuit.

4. The detection device of claim 3, wherein, The detection device further comprises a third sensing unit, the third sensing unit comprises the temperature sensing device, the circuit board further has a temperature detection circuit, the temperature sensing device is arranged on the circuit board and connected with the temperature detection circuit.

5. The detection device of claim 4, wherein, The temperature sensing device is arranged at a first end of the circuit board.

6. The detection device of claim 5, wherein, The detection device further comprises a fourth sensing unit, the fourth sensing unit comprises the gas pressure sensing device, the circuit board further has a pressure detection circuit, and the gas pressure sensing device is connected with the pressure detection circuit.

7. The detection device of claim 6, wherein, The gas pressure sensing device is arranged at a second end of the circuit board, wherein the second end is opposite to the first end.

8. The detection device of claim 7, wherein, The liquid level detection assembly comprises a magnetic float and a plurality of dry reed tubes, the circuit board comprises a strip extending along a direction from the first end to the second end, the plurality of dry reed tubes are arranged on a surface of the strip and arranged along a length direction of the strip, and the magnetic float is sleeved on an outer periphery of the strip and can move relative to the strip along the length direction of the strip.

9. The detection device according to claim 7 or 8, characterized in that The second end is provided with a cable connecting portion, each detection circuit is connected with the cable connecting portion, and the cable connecting portion is used for connecting with an external cable.

10. A liquid-cooled cabinet, characterized by The detection device comprises a cabinet body and the detection device according to any one of claims 1 to 9, the detection device is arranged vertically in the cabinet body and fixedly connected to one end of a side wall of the cabinet body close to a top wall.

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