CN114228551A

CN114228551A - Liquid working medium monitoring system, liquid cooling device, charging pile and intelligent terminal

Info

Publication number: CN114228551A
Application number: CN202111468053.2A
Authority: CN
Inventors: 廉志晟; 李文康; 陈光辉; 胡明贵
Original assignee: Huawei Digital Power Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-03-25

Abstract

The application provides a liquid working medium monitoring system, including detection portion and control portion: the detection part comprises a shell, a first conductive structure and a second conductive structure, wherein a closed cavity is formed in the shell, at least part of the first conductive structure and at least part of the second conductive structure are positioned in the cavity, the parts of the first conductive structure and the second conductive structure positioned in the cavity are mutually electrically insulated, and when the liquid working medium enters the cavity, the first conductive structure and the second conductive structure are conducted through the liquid working medium; the monitoring part is electrically connected with the detection part and used for giving out a warning when the first conductive structure and the second conductive structure are conducted. The application also provides a liquid cooling device, a charging pile and an intelligent terminal.

Description

Liquid working medium monitoring system, liquid cooling device, charging pile and intelligent terminal

Technical Field

The application relates to the technical field of heat dissipation, in particular to a liquid working medium monitoring system, a liquid cooling device, a charging pile applying the liquid cooling device and an intelligent terminal applying the liquid cooling device.

Background

With the rapid development of the new energy automobile industry, the endurance mileage of the new energy automobile is continuously improved, so that the battery capacity of the new energy automobile is increased more and more.

The battery of the new energy automobile is charged through the charging pile. The faster the charging speed, the higher the heat consumption of the power module of the charging pile. The power module of electric pile dispels the heat to adopting the liquid cooling radiating mode usually. The liquid cooling heat dissipation mode is that a cold plate is adopted to be tightly attached to a power module of the charging pile, liquid working media are filled in the cold plate, and the liquid working media flow to take out heat generated by the power module. The cold drawing is in long-term use, and liquid working medium can be because of melting into reasons such as impurity, self are rotten and the acidizing, and then produces the corrosive action to cold drawing inner structure, easily leads to liquid working medium to have the risk of revealing.

In the prior art, one method for reducing the risk is to periodically detect the PH value of the liquid working medium and replace the liquid working medium which does not meet the requirements. However, the method has uncertain maintenance time, unknown corrosion condition and high maintenance cost. In the prior art, another method for reducing the risks is to add a corrosion inhibitor in the liquid working medium to delay the deterioration speed of the liquid working medium, the method is difficult to realize acidification control in the whole life cycle of the liquid working medium, the corrosion inhibitor still needs to be supplemented periodically in the using process, and the maintenance cost is high.

Disclosure of Invention

The application provides a liquid working medium monitoring system in the first aspect, including detection part and control portion:

the detection part comprises a shell, a first conductive structure and a second conductive structure, wherein a closed cavity is formed in the shell, at least part of the first conductive structure and at least part of the second conductive structure are positioned in the cavity, the parts of the first conductive structure and the second conductive structure positioned in the cavity are mutually electrically insulated, and when the liquid working medium enters the cavity, the first conductive structure and the second conductive structure are conducted through the liquid working medium;

and the monitoring part is electrically connected with the detection part and is used for giving out a warning when the first conductive structure and the second conductive structure are conducted.

The liquid working medium monitoring system comprises a detection part and a monitoring part, wherein the detection part comprises a shell, a first conductive structure and a second conductive structure. When the liquid working medium is acidified, the shell is corroded, so that the liquid working medium is poured into a cavity formed by the shell, the first conductive structure and the second conductive structure in the cavity are conducted, the first conductive structure, the monitoring part and the second conductive structure form a current loop, and the monitoring part gives an alarm. Therefore, the liquid working medium monitoring system in the embodiment is beneficial to monitoring the state (whether the liquid working medium is acidified) of the liquid working medium in real time and giving a warning in time when the liquid working medium is acidified, so that when the liquid working medium monitoring system is applied to a liquid cooling device, the liquid working medium is beneficial to preventing the acidified liquid working medium from corroding structures (such as a main structure) in the liquid cooling device, the real-time monitoring of the liquid cooling device is realized, the acidification condition of the liquid working medium is not required to be checked regularly, a corrosion inhibitor is not required to be added to the liquid working medium regularly, the maintenance cost is reduced, and the safety and the stability are enhanced.

In some embodiments, the cavity is filled with a powdered insulating material, and the first conductive structure and the second conductive structure are insulated at intervals by the powdered insulating material.

Because the parts of the first conductive structure and the second conductive structure, which are positioned in the cavity, have certain deformation capacity, under the action of external force, the parts are likely to bend to contact the inner wall of the shell, so that the shell contacts the first conductive structure and the second conductive structure to form a current loop, and false triggering and warning are easy to occur. The cavity is filled with the powdery insulating material to enable the first conductive structure and the second conductive structure to be insulated at intervals, so that the first conductive structure and the second conductive structure are favorably prevented from contacting the inner wall of the shell, and the monitoring part is favorably prevented from being triggered by mistake.

In some embodiments, when the liquid working medium enters the cavity, the powdery insulating material is dispersed in the liquid working medium or is soluble in the liquid working medium.

The powdery insulating material can be dissolved in the liquid working medium, so that when the shell is corroded and the liquid working medium is poured into the cavity, the powdery insulating material is dispersed or dissolved in the liquid working medium, and the first conductive structure and the second conductive structure are prevented from being influenced to establish electric connection through the liquid working medium.

In some embodiments, the detection portion further includes at least one fixing member fixed in the cavity, and the at least one fixing member is configured to maintain the positions of the first conductive structure and the second conductive structure.

The parts of the first conductive structure and the second conductive structure, which are located in the cavity, have certain deformation capacity, so that the parts can be bent to contact the inner wall of the shell under the action of external force, and the shell contacts the first conductive structure and the second conductive structure to form a current loop, so that false triggering and warning are easy to occur. The fixing piece is used for keeping the first conductive structure and the second conductive structure suspended in the cavity, and the first conductive structure and the second conductive structure are prevented from contacting the inner wall of the shell. Therefore, in the embodiment, the fixing piece is arranged, so that the monitoring part can be prevented from being triggered by mistake.

In some embodiments, the first conductive structure comprises a conductive line and an insulating layer;

the conducting wire part is positioned in the cavity, partially penetrates through the shell and is electrically connected with the monitoring part;

the part of the conductive wire, which is positioned in the cavity, is exposed out of the cavity, and the insulating layer wraps the part of the conductive wire, which is not positioned in the cavity.

In some embodiments, the liquid working medium monitoring system further comprises a sealing sleeve located on the housing at a location penetrated by the conductive wire for sealing the housing.

Therefore, the sealing sleeve is used for sealing the shell, so that the liquid working medium is prevented from being filled into the cavity from the position of the shell penetrated by the conducting wire.

In some embodiments, the liquid working medium monitoring system includes a plurality of the detection portions, the detection portions are connected in parallel and electrically connected to the monitoring portion, the shell in each detection portion is made of a different material, and when the first conductive structure and the second conductive structure in any detection portion are conducted, the monitoring portion gives an alarm.

The second aspect of the present application provides a liquid cooling device, including liquid cooling system and liquid working medium monitoring system:

the liquid cooling system comprises a main body structure, wherein a channel is formed in the main body structure and is used for containing a liquid working medium to dissipate heat;

the liquid working medium monitoring system is as described in any one of the above, the detection part is at least partially located in the channel, and when the liquid working medium enters the cavity, the first conductive structure and the second conductive structure are conducted through the liquid working medium.

The liquid cooling device comprises a detection part and a monitoring part, wherein the detection part comprises a shell, a first conductive structure and a second conductive structure. When the liquid working medium is acidified, the shell is corroded, so that the liquid working medium is poured into a cavity formed by the shell, the first conductive structure and the second conductive structure in the cavity are conducted, the first conductive structure, the monitoring part and the second conductive structure form a current loop, and the monitoring part gives an alarm. Therefore, the liquid cooling device in the embodiment is beneficial to monitoring the state (whether the liquid working medium is acidified) of the liquid working medium in real time and giving a warning in time when the liquid working medium is acidified, so that the liquid cooling device is beneficial to preventing the liquid working medium from corroding structures (such as a main body structure) in the liquid cooling system after being acidified. The liquid cooling device realizes real-time monitoring of the liquid cooling device, does not need to periodically check the acidification condition of the liquid working medium, does not need to periodically add a corrosion inhibitor to the liquid working medium, is favorable for reducing the maintenance cost, and enhances the safety and the stability.

In some embodiments, the corrosion resistance of the housing is equal to the corrosion resistance of the body structure. For example, the corrosion resistance of the shell is equal to that of the main structure when the shell and the main structure are made of the same material.

Thus, when the monitoring part gives a warning, the first conductive structure and the second conductive structure are known to be conducted, and the shell is known to be corroded. Through setting up the casing and being the same with the major structure material, can in time learn liquid working medium when can corrode the major structure.

In some embodiments, the corrosion resistance of the housing is less than the corrosion resistance of the body structure.

Therefore, the warning is sent out after the liquid working medium is favorable for avoiding the serious corrosion of the main body structure.

In some embodiments, the pressure within the chamber is less than the pressure within the channel.

Therefore, when the shell is corroded by the liquid working medium, the liquid working medium can be smoothly poured into the cavity.

In some embodiments, the sealing sleeve is further located at a position where the main body structure is penetrated by the conductive wire, for sealing the main body structure.

So, be favorable to avoiding liquid working medium to reveal away from the passageway from the position that major structure is penetrated by the conducting wire through the sealed major structure of seal cover.

In some embodiments, the material of the housing in the plurality of detection portions is the same as the material of different components in the liquid cooling system in a one-to-one correspondence.

The material of the shell in each detection part is the same as that of a certain part in the liquid cooling system, so that when the liquid working medium is acidified, any shell is corroded, the detection part and the monitoring part can form a current loop, and the monitoring part can give out an alarm. Generally, the shell made of the material having the weakest corrosion resistance is corroded first, with the same thickness of the shell. The structure enables the monitoring part to give a warning when the shell made of the material with the weakest corrosion resistance is corroded, so that the acidification of the liquid working medium can be found in time, a plurality of parts which are in direct contact with the liquid working medium in the liquid cooling system are prevented from being corroded, and the leakage risk of the liquid working medium is reduced. It is beneficial to avoid the corrosion of a plurality of parts of different materials which are directly contacted with the liquid working medium in the liquid cooling system.

In some embodiments, the liquid cooling device includes a plurality of the liquid working medium monitoring systems, the plurality of liquid working medium monitoring systems are electrically insulated from each other, and the material of the housing in each of the liquid working medium monitoring systems is different.

In some embodiments, the material of the housing in the plurality of liquid working medium monitoring systems corresponds to the material of the different components in the liquid cooling system one to one.

The liquid cooling device comprises a plurality of different liquid working medium monitoring systems, warnings can be sent out for different parts in the liquid cooling system respectively, specific corroded parts and specific corroded positions in the liquid cooling system can be known when the warnings are received, targeted problem troubleshooting, maintenance or part replacement of the liquid cooling device are facilitated, the maintenance process of the liquid cooling device is simplified, and maintenance cost is reduced.

The third aspect of the application provides a charging pile, including the device and the liquid cooling device that generate heat, the liquid cooling device is hugged closely the device that generate heat for the device that generates heat dispels the heat, the liquid cooling device is as above-mentioned.

The liquid charging pile comprises a liquid cooling device, the liquid cooling device comprises a detection part and a monitoring part, and the detection part comprises a shell, a first conductive structure and a second conductive structure. When the liquid working medium is acidified, the shell is corroded, so that the liquid working medium is poured into a cavity formed by the shell, the first conductive structure and the second conductive structure in the cavity are conducted, the first conductive structure, the monitoring part and the second conductive structure form a current loop, and the monitoring part gives an alarm. Therefore, the liquid cooling device in the embodiment is beneficial to monitoring the state (whether the liquid working medium is acidified) of the liquid working medium in real time and giving a warning in time when the liquid working medium is acidified, so that the liquid cooling device is beneficial to preventing the liquid working medium from corroding structures (such as a main body structure) in the liquid cooling system after being acidified. The liquid cooling device realizes real-time monitoring of the liquid cooling device, does not need to periodically check the acidification condition of the liquid working medium, does not need to periodically add a corrosion inhibitor to the liquid working medium, is favorable for reducing the maintenance cost, and enhances the safety and the stability.

The fourth aspect of the present application provides an intelligent terminal, including the liquid cooling device, the liquid cooling device is as above.

The intelligent terminal comprises a liquid cooling device, the liquid cooling device comprises a detection part and a monitoring part, and the detection part comprises a shell, a first conductive structure and a second conductive structure. When the liquid working medium is acidified, the shell is corroded, so that the liquid working medium is poured into a cavity formed by the shell, the first conductive structure and the second conductive structure in the cavity are conducted, the first conductive structure, the monitoring part and the second conductive structure form a current loop, and the monitoring part gives an alarm. Therefore, the liquid cooling device in the embodiment is beneficial to monitoring the state (whether the liquid working medium is acidified) of the liquid working medium in real time and giving a warning in time when the liquid working medium is acidified, so that the liquid cooling device is beneficial to preventing the liquid working medium from corroding structures (such as a main body structure) in the liquid cooling system after being acidified. The liquid cooling device realizes real-time monitoring of the liquid cooling device, does not need to periodically check the acidification condition of the liquid working medium, does not need to periodically add a corrosion inhibitor to the liquid working medium, is favorable for reducing the maintenance cost, and enhances the safety and the stability.

Drawings

Fig. 1 is a schematic structural diagram of a charging pile in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a liquid cooling apparatus according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a detection part in the liquid cooling device shown in fig. 1 when a liquid working medium is acidified.

Fig. 4 is a schematic structural diagram of a liquid cooling apparatus in a modification of the first embodiment of the present application.

Fig. 5 is a schematic structural diagram of a detection portion in another modified embodiment of the first embodiment of the present application.

Fig. 6 is a schematic structural diagram of a liquid cooling apparatus according to a second embodiment of the present application.

Fig. 7 is a schematic structural diagram of a liquid cooling apparatus according to a third embodiment of the present application.

Description of the main elements

Charging pile 1

Power module 400

Liquid cooling apparatus

100, 200, 300

Liquid cooling system 10

Body structure 11

Channel 12

Liquid working medium 13

Water tank 14

Water pump 15

Liquid working medium monitoring system 20

Detection unit 21

Housing 211

Notch 211a

Inner wall 211b

First conductive structure 212

Second conductive structure 213

Electrically

conductive lines

212a, 213a

Insulating

layers

212b, 213b

Cavity 214

Fixing member 215

Powdered insulating material 216

Monitoring part 22

Sealing sleeve 23

Detailed Description

The embodiments of the present application will be described below with reference to the drawings.

The liquid cooling device comprises a flowable liquid working medium, the liquid cooling device is tightly attached to the heating device when in use, and the heat generated by the heating device can be taken away by controlling the flow of the liquid working medium, so that the heat dissipation effect of the liquid cooling device is realized. The heat generating device may be an electronic device that generates heat during operation, such as a server, a Central Processing Unit (CPU), a power module (including a digital-to-analog conversion module), and the like. The liquid cooling device can be applied to various electronic equipment and is used for radiating electronic devices generating heat in the electronic equipment. The electronic device is, for example, an intelligent terminal (including a mobile phone, a computer, etc.).

Example one

Referring to fig. 1, in the present embodiment, a liquid cooling device is applied to a charging pile 1 of a new energy vehicle, where the charging pile 1 includes a power module 400, and the liquid cooling device is used for dissipating heat of the power module 400.

Referring to fig. 2, the liquid cooling apparatus 100 of the present embodiment includes a liquid cooling system 10 and a liquid working medium monitoring system 20.

The liquid cooling system 10 includes a body structure 11 and a passage 12 formed in the body structure 11. The liquid cooling system 10 further includes a liquid working substance 13 filled in the passage 12. When the liquid cooling device 100 works, the liquid cooling device is tightly attached to the heating device (in this embodiment, the power module 400), and the liquid working medium 13 is controlled to flow in the channel 12, so that heat generated by the heating device can be taken away, and the heat is dissipated for the heating device. In this embodiment, the main structure 11 is at least partially made of metal, and the liquid working medium 13 is liquid with conductivity.

In the working process of the liquid cooling device, the liquid working medium may be acidified. The acidified liquid working medium is easy to corrode the metal inner wall of the main body structure. In this embodiment, the liquid working medium monitoring system 20 is configured to monitor whether the liquid working medium 13 is acidified in real time, and generate a warning when the acidification degree of the liquid working medium 13 reaches a dangerous value. Therefore, the liquid working medium monitoring system 20 is beneficial to timely reminding when the acidification degree of the liquid working medium 13 reaches a dangerous value, and prevents the acidified liquid working medium 13 from corroding the main structure 11 to cause liquid working medium leakage.

The liquid working medium monitoring system 20 includes a detection portion 21 and a monitoring portion 22. The detection part 21 is positioned in the channel 12 and at least partially soaked in the liquid working medium 13. The monitoring portion 22 is located outside the passage 12, and is electrically connected to the detection portion 21. The detection part 21 is used for detecting whether the liquid working medium 13 is acidified, when the liquid working medium 13 is acidified, the detection part 21 is conducted, the detection part 21 and the monitoring part 22 form a current loop, and the monitoring part 22 can give out an alarm.

The detection portion 21 includes a housing 211, a first conductive structure 212, and a second conductive structure 213.

The housing 211 encloses a closed chamber 214, so as to prevent the liquid working medium 13 from entering the chamber 214. The first conductive structure 212 and the second conductive structure 213 are at least partially disposed in the cavity 214 and are respectively fixed to the housing 211. The first conductive structure 212 is spaced apart from the end of the second conductive structure 213 within the cavity 214.

The shell 211 is soaked in the liquid working medium 13, when the liquid working medium 13 is not acidified, the shell 211 prevents the liquid working medium 13 from entering the cavity 214, the first conductive structure 212 and the second conductive structure 213 are kept insulated and disconnected, that is, the detection part 21 is kept in an open circuit state, and the detection part 21 and the monitoring part 22 cannot form a current loop.

Referring to fig. 3, when the liquid working medium 13 is acidified, the shell 211 is corroded, so that the shell 211 forms at least one notch 211a, and the liquid working medium 13 can be poured into the cavity 214 through the notch 211 a. With the increase of the liquid working medium 13 in the cavity 214, when the first conductive structure 212 and the second conductive structure 213 are both immersed in the liquid working medium 13, the first conductive structure 212 and the second conductive structure 213 are conducted through the liquid working medium 13, the first conductive structure 212, the monitoring part 22 and the second conductive structure 213 form a current loop, and the monitoring part 22 can give an alarm to remind that the liquid working medium 13 is acidified at the moment.

In this embodiment, the pressure inside the cavity 214 is reduced, so that the pressure inside the cavity 214 is lower than the pressure inside the channel 12, and the liquid working medium 13 can be smoothly poured into the cavity 214 after the shell 211 is corroded by the liquid working medium 13.

When the monitoring unit 22 issues a warning, it is known that the first conductive structure 212 and the second conductive structure 213 are conductive, and it is known that the housing 211 is corroded. By providing the housing 211 and at least a portion of the main structure 11 with the same material (where the housing 211 and the portion of the main structure 11 have substantially equal corrosion resistance), it is possible to know in time when the liquid working medium 13 will corrode the portion of the main structure 11. Since the main body structure 11 may comprise a variety of different materials, the housing 211 is provided of the same material as the portion of the main body structure 11 that directly contacts the liquid working substance.

Since the monitoring portion 22 can give a warning after the shell 211 is corroded to form the notch 211a, the thickness of the shell 211 is set to be smaller than the thickness of the thinnest portion of the main body structure 11 in this embodiment, so as to avoid that the warning is given after the main body structure 11 is corroded seriously by the liquid working medium 13. In another embodiment, the material of the housing 211 may be different from that of the main body structure 11, and the main body structure 11 is more corrosion resistant than the housing 211, that is, the corrosion resistance of the housing 211 is lower than that of the main body structure, which is also beneficial to avoiding the warning after the main body structure 11 is severely corroded by the liquid working medium 13.

Referring to fig. 2 again, in the present embodiment, the first conductive structure 212 includes a conductive line 212a and an insulating layer 212b partially wrapping the conductive line 212 a. The conductive line 212a is partially located in the cavity 214, and another portion penetrates through the housing 211, extends into the channel 12, and penetrates through the main body structure 11 and then extends out of the channel 12. The conductive line 212a extends to the channel 12 and is electrically connected to the monitoring unit 22. The portion of the first conductive structure 212 located in the cavity 214 is a directly exposed conductive line 212a to facilitate direct electrical contact with the liquid working medium 13. The portion of the first conductive structure 212 not located in the cavity 214 is wrapped by the insulating layer 212b, and the insulating layer 212b is used for preventing the conductive wire 212a from contacting the liquid working medium 13 in the channel 12 and protecting the conductive wire 212a outside the channel 12 from being damaged.

The conductive line 212a and the housing 211 are spaced apart by an insulating layer 212b where the first conductive structure 212 penetrates the housing 211. Where the first conductive structure 212 penetrates the body structure 11, the conductive line 212a and the body structure 11 are separated by an insulating layer 212 b.

The second conductive structure 213 includes a conductive line 213a and an insulating layer 213b partially wrapping the conductive line 213 a. The conductive line 213a is partially located in the cavity 214, and another portion penetrates through the housing 211, extends into the channel 12, and penetrates through the main body structure 11 and then extends out of the channel 12. The conductive line 213a extends to the channel 12 and is electrically connected to the monitoring unit 22. The portion of the second conductive structure 213 located in the cavity 214 is a directly exposed conductive line 213a to facilitate direct electrical contact with the liquid medium 13. The portion of the second conductive structure 213 not located in the cavity 214 is wrapped by the insulating layer 213b, and the insulating layer 213b is used to prevent the conductive line 213a from contacting the liquid working medium 13 in the channel 12 and to protect the conductive line 213a outside the channel 12 from being damaged.

The conductive line 213a and the housing 211 are spaced apart by an insulating layer 213b at a position where the second conductive structure 213 penetrates the housing 211. Where the second conductive structure 213 penetrates the body structure 11, the conductive line 213a and the body structure 11 are spaced apart by an insulating layer 213 b.

In this embodiment, the detecting portion 21 further includes two fixing members 215, and the two fixing members 215 are located in the cavity 214. The two fixing members 215 are insulating materials. Two fasteners 215 are used to hold the position of the first conductive structure 212 and the second conductive structure 213, respectively.

The parts of the first conductive structure 212 and the second conductive structure 213 in the cavity 214 are directly exposed conductive wires 212a, and the conductive wires 212a have a certain deformation capability, and under the action of an external force, the conductive wires 212a may bend to contact the inner wall 211b of the housing 211. Since the housing 211 is made of metal, the contact between the housing 211 and the first conductive structure 212 and the second conductive structure 213 also forms a current loop, which is prone to trigger a warning by mistake.

In this embodiment, the two fixing members 215 are used to keep the first conductive structure 212 and the second conductive structure 213 suspended in the cavity 214, so as to prevent the first conductive structure 212 and the second conductive structure 213 from contacting the inner wall 211b of the housing 211. Specifically, each fixing element 215 abuts against the inner wall 211b of the cavity 214 to fix the position thereof, and the conductive line 212a of the first conductive structure 212 and the conductive line 213a of the second conductive structure 213 are respectively and partially embedded in one fixing element 215, so as to limit the first conductive structure 212 and the second conductive structure 213 through the fixing element 215, and keep the first conductive structure 212 and the second conductive structure 213 suspended. Therefore, in this embodiment, the fixing member 215 is provided to avoid the false triggering of the monitoring portion 22.

In some embodiments of the present application, the detecting portion 21 may include other numbers of fixing members 215, for example, only one fixing member 215, and the first conductive structure 212 and the second conductive structure 213 are both partially embedded in the one fixing member 215 and still maintain the interval insulation.

Referring to fig. 4, in some embodiments of the present application, the detecting portion 21 does not include the fixing member 215, and the cavity 214 is filled with a powder insulating material to prevent the first conductive structure 212 and the second conductive structure 213 from contacting the inner wall 211b of the housing 211. The powdery insulating material is soluble in the liquid working medium 13, and when the housing 211 is corroded and the liquid working medium 13 is poured into the cavity 214, the powdery insulating material is soluble in the liquid working medium 13, so that the first conductive structure 212 and the second conductive structure 213 are prevented from being influenced to establish electrical connection through the liquid working medium 13. In the above embodiments, the powdery insulating material is, for example, flour, starch, lime.

In some embodiments of the present application, the detecting portion 21 includes a fixing member 215, and the cavity 214 is filled with a powder insulating material. The monitoring section 22 can be further prevented from being erroneously triggered.

Referring to fig. 5, in some embodiments of the present application, the detecting portion 21 may not include the fixing member 215, and the cavity 214 is not filled with the powder insulating material.

Referring to fig. 2 again, in the present embodiment, the liquid working medium monitoring system 20 further includes a plurality of sealing sleeves 23. Each sealing sleeve 23 is located at a position where the main body structure 11 is penetrated by the first conductive structure 212 and the second conductive structure 213 or at a position where the housing 211 is penetrated by the first conductive structure 212 and the second conductive structure 213, so as to prevent the liquid working medium 13 from pouring into the cavity 214 or prevent the liquid working medium 13 from leaking out of the passage 12. In some embodiments of the present application, the cavity 214 and the channel 12 may be sealed by other means. Such as welding the housing 211 with the first and second

conductive structures

212 and 213 to seal the cavity 214, or welding the body structure 11 with the first and second

conductive structures

212 and 213 to seal the channel 12.

The monitoring unit 22 may be a chip, a circuit, a display panel, etc., and the manner of warning generated by the monitoring unit 22 may be a sound prompt, a display prompt, etc. The monitoring portion 22 may also be communicatively coupled to a control device to send an alert to the control device. The control device is, for example, a mobile phone or a computer.

In this embodiment, the liquid cooling system 10 further includes other necessary structures for heat dissipation, such as a water tank and a water pump, and the housing 211 may be made of the same material as a structure of the liquid cooling system 10, so as to monitor whether the structure of the liquid cooling system 10 is corroded.

The liquid cooling apparatus 100 of the present embodiment includes a detection portion 21 and a monitoring portion 22, and the detection portion 21 includes a housing 211, a first conductive structure 212, and a second conductive structure 213. When the liquid working medium 13 is acidified, the housing 211 is corroded so that the liquid working medium 13 is poured into the cavity 214 formed by the housing 211, the first conductive structure 212 and the second conductive structure 213 located in the cavity 214 are conducted, the first conductive structure 212, the monitoring part 22 and the second conductive structure 213 form a current loop, and the monitoring part 22 gives an alarm. Therefore, the liquid cooling device 100 in this embodiment is beneficial to monitoring the state (whether the liquid working medium 13 is acidified) of the liquid working medium 13 in real time, and giving a warning in time when the liquid working medium 13 is acidified, so as to be beneficial to preventing the acidified liquid working medium 13 from corroding the structure (such as the main structure 11) in the liquid cooling system 10. The liquid cooling device 100 realizes real-time monitoring of the liquid cooling device 100, does not need to periodically check the acidification condition of the liquid working medium 13, does not need to periodically add a corrosion inhibitor to the liquid working medium 13, and is favorable for reducing the maintenance cost and enhancing the safety and the stability.

Example two

Referring to fig. 6, the main difference between the liquid cooling apparatus 200 of the present embodiment and the liquid cooling apparatus 100 of the first embodiment is that the liquid cooling apparatus 200 includes three detecting portions 21.

In this embodiment, the three detection portions 21 are electrically connected to the monitoring portion 22, respectively, and the three detection portions 21 are connected in parallel. When any one of the detecting portions 21 is turned on, a current loop can be formed with the monitoring portion 22, so that the monitoring portion 22 gives an alarm. The structural functions of the three detecting portions 21 are substantially the same, and the structural functions of each detecting portion 21 are as described in the first embodiment. The three detection sections 21 are different in that the material of the housing 211 differs in each detection section 21.

The parts of the liquid cooling system 10 directly contacting the liquid working medium 13 may include a water tank, a water pump (not shown) and other parts besides the main structure 11, and the materials of the parts are different, which results in different corrosion resistances of the parts. Therefore, the liquid working medium 13 will be acidified to different degrees of corrosion on different parts of the liquid cooling apparatus 200.

In this embodiment, the liquid cooling apparatus 200 includes three detection units 21, and the material of the housing 211 in each detection unit 21 is the same as that of a component in the liquid cooling system 10. For example, the housing 211 of one of the three detecting portions 21 is made of the same material as the main body structure 11 (or a part of the main body structure), the housing 211 of one detecting portion 21 is made of the same material as the water tank (or a part of the water tank), and the housing 211 of the other detecting portion 21 is made of the same material as the water pump (or a part of the water pump). When the liquid working medium 13 is acidified, any one of the shells 211 is corroded, so that the detection part 21 and the monitoring part 22 form a current loop, and the monitoring part 22 can give an alarm. The part of the main body structure, the part of the water tank and the part of the water pump generally refer to the parts of the main body structure, the water tank and the water pump which are in direct contact with the liquid working medium and are easily corroded by the acidified liquid working medium.

Generally, in the case where the thickness of the case 211 is the same, the case 211 made of a material having the weakest corrosion resistance is corroded first. The structure enables the monitoring part 22 to give a warning when the shell 211 made of the material with the weakest corrosion resistance is corroded, so that the acidification of the liquid working medium 13 can be found in time, a plurality of parts in direct contact with the liquid working medium 13 in the liquid cooling system 10 are prevented from being corroded, and the leakage risk of the liquid working medium is reduced.

In a modified embodiment of the present embodiment, the number of the detecting portions 21 may be different. The number of the detection units 21 is determined according to the number of types of materials of the components requiring corrosion prevention in the liquid cooling system 10. For example, if the components of the liquid cooling system 10 that need to be protected from corrosion are made of five materials, the liquid cooling apparatus 200 includes five detection units 21, and the material of the housing 211 in each detection unit 21 corresponds to the five materials.

The liquid cooling apparatus 200 of the present embodiment can achieve all the advantages of the liquid cooling apparatus 100 as described in the first embodiment. On the basis, the liquid cooling apparatus 200 of the present embodiment includes a plurality of detecting portions 21, which is beneficial to prevent corrosion of a plurality of parts of the liquid cooling system 10 directly contacting with different materials of the liquid working medium 13.

EXAMPLE III

Referring to fig. 7, the main difference of the liquid cooling apparatus 300 of the present embodiment from the first embodiment is that the liquid cooling apparatus 300 includes three liquid working medium monitoring systems 20. The structures and functions of the liquid working medium monitoring systems 20 are basically the same, and the structure and function of each liquid working medium monitoring system 20 are as described in the first embodiment.

In this embodiment, the liquid working medium monitoring systems 20 are insulated from each other and disposed on the main structure 11 at intervals. The difference between the liquid working medium monitoring systems 20 is mainly that: the housing 211 is of a different material.

For the same reason as in the second embodiment, the housing 211 made of different materials is advantageous for monitoring whether the various components of the liquid cooling system 10 made of different materials are corroded. In addition, each of the detection units 21 is electrically connected to a different monitoring unit 22, and the different monitoring unit 22 gives a warning indicating that a different member is corroded.

In an alternative embodiment, different monitoring units 22 may be provided to generate different types of warnings to more visually distinguish between warnings generated when different components are corroded. For example, by warning sounds, flashing lights, pushing warning messages, etc., respectively, to indicate that different components are corroded.

The liquid cooling apparatus 300 of the present embodiment can achieve all the advantages of the liquid cooling apparatus 100 of the first embodiment and the liquid cooling apparatus 200 of the second embodiment. On this basis, the liquid cooling device 300 of the embodiment includes a plurality of different liquid working medium monitoring systems 20, which can respectively send out warnings for different components in the liquid cooling system 10, and can know the specific component and the specific position corroded by the liquid cooling system 10 when receiving the warning, thereby being beneficial to performing targeted problem troubleshooting, maintenance or component replacement on the liquid cooling device 300, simplifying the maintenance process of the liquid cooling device 300, and reducing the maintenance cost.

It will be appreciated by those skilled in the art that the above embodiments are illustrative only and not intended to be limiting, and that suitable modifications and variations may be made to the above embodiments without departing from the true spirit and scope of the invention.

Claims

1. The utility model provides a liquid working medium monitoring system which characterized in that, includes detection portion and control portion:

2. The liquid working medium monitoring system of claim 1, wherein the cavity is filled with a powdered insulating material, and the first conductive structure and the second conductive structure are spaced apart and insulated by the powdered insulating material.

3. The liquid working medium monitoring system of claim 2, wherein the powdered insulating material is dispersed or dissolved in the liquid working medium as the liquid working medium enters the cavity.

4. The liquid working medium monitoring system according to any one of claims 1 to 3, wherein the detection portion further comprises a fixing member, the fixing member is fixed in the cavity, and the fixing member is used for maintaining the positions of the first conductive structure and the second conductive structure.

5. The liquid working medium monitoring system of any one of claims 1 to 4, wherein the first conductive structure comprises a conductive line and an insulating layer;

6. The liquid working medium monitoring system of claim 5 further comprising a sealing boot located on the housing at a location penetrated by the conductive wire for sealing the housing.

7. The liquid working medium monitoring system according to any one of claims 1 to 6, wherein the liquid working medium monitoring system comprises a plurality of detection parts, the detection parts are mutually connected in parallel and are respectively electrically connected with the monitoring parts, the shell in each detection part is made of a different material, and when the first conductive structure and the second conductive structure in any detection part are conducted, the monitoring part gives an alarm.

8. The utility model provides a liquid cooling device which characterized in that, includes liquid cooling system and liquid working medium monitoring system:

the liquid cooling system comprises a main body structure, wherein a channel is formed in the main body structure and is used for containing the liquid working medium to dissipate heat;

the liquid working medium monitoring system is as claimed in any one of claims 1 to 5, the detection part is at least partially located in the channel, and when the liquid working medium enters the cavity, the first conductive structure and the second conductive structure are conducted through the liquid working medium.

9. The liquid cooling apparatus of claim 8, wherein the housing is the same material as at least a portion of the body structure.

10. The liquid cooling apparatus of claim 8, wherein the housing has a corrosion resistance equal to or less than a corrosion resistance of at least a portion of the body structure.

11. The liquid cooling apparatus of any of claims 8-10, wherein a pressure in the chamber is less than a pressure in the passage.

12. The liquid cooling apparatus of any of claims 8-11, wherein the first electrically conductive structure comprises an electrically conductive wire and an insulating layer;

the conducting wire part is positioned in the cavity, penetrates through the shell partially, extends into the channel and penetrates through the main body structure to be electrically connected with the monitoring part;

13. The liquid cooling device of claim 12, further comprising a sealing sleeve, said sealing sleeve further positioned at a location of said body structure penetrated by said conductive wire for sealing said body structure.

14. The liquid cooling apparatus as recited in any one of claims 8-13, wherein said liquid working medium monitoring system comprises a plurality of said detecting portions, said detecting portions being connected in parallel to each other and electrically connected to said monitoring portion, respectively, said housing in each of said detecting portions being made of a different material, said monitoring portion providing an alarm when said first conductive structure and said second conductive structure in any one of said detecting portions are conductive.

15. The liquid cooling apparatus of claim 14, wherein the plurality of sensing portions are formed of the same material as different components of the liquid cooling system in a one-to-one correspondence.

16. The liquid cooling device of any of claims 8-13, comprising a plurality of said liquid working medium monitoring systems, said plurality of liquid working medium monitoring systems being electrically isolated from each other, said housing in each of said liquid working medium monitoring systems being of a different material.

17. The liquid cooling device of claim 16, wherein a plurality of said liquid working medium monitoring systems have a same one-to-one correspondence of material of said housing to material of different components of said liquid cooling system.

18. A charging pile comprising a heat generating device and a liquid cooling device, said liquid cooling device being in close proximity to said heat generating device to dissipate heat from said heat generating device, said liquid cooling device being as claimed in any one of claims 8 to 17.

19. An intelligent terminal, comprising a liquid cooling device as claimed in any one of claims 8 to 17.