Circulation cooling system and lighting equipment

Abstract

The embodiment of the present application discloses a circulating cooling system and lighting equipment, the circulating cooling system includes a first circulating loop; the first circulating loop includes a cooling plate, a pressure regulating container and a driving pump connected in series, the cooling plate, the pressure regulating container and the driving pump are sequentially connected through a first pipe, a fluid medium flows in the first pipe, the cooling plate is used to absorb the heat emitted by the heating module; the driving pump is used to drive the fluid medium to flow in multiple first pipes and the first circulating loop to dissipate the heat absorbed by the cooling plate; a pressure regulating medium is sealed in the pressure regulating container, and the fluid medium compresses the pressure regulating medium when expanding to make the pressure regulating medium contract, so as to reduce the hydraulic pressure of the fluid medium. The present application can stabilize the pressure in the circulating cooling system within a range with small fluctuations, and avoid the high pressure inside the cooling system causing the cooling system to malfunction.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation technology, and in particular to a circulating cooling system and lighting equipment. Background Art

[0002] With the vigorous development of the electronics industry, the power consumption of various electronics industries is getting bigger and bigger. For example, in the photography lighting industry, its thermal power consumption and power density are also increasing.

[0003] For high-power products with high power density, traditional technology mainly relies on fans combined with heat pipes, heat spreaders, etc. to dissipate heat. This technology belongs to pure air cooling. Heat pipes and heat spreaders are limited by their principles and have limited heat transfer capabilities. As the heat flux density of photographic lights gradually increases, it is difficult for heat pipes and heat spreaders to meet the growing needs. When liquid cooling is used for heat dissipation, the components in the circulation loop are easily affected by the heat dissipation process and fail. Summary of the invention

[0004] The embodiments of the present application provide a circulating cooling system and lighting equipment, aiming to solve the problem in the prior art that when the cooling system dissipates heat from a heat generating module with a higher power density, the pressure inside the cooling system is easily high, causing the cooling system to malfunction.

[0005] To solve the above problems, in a first aspect, the present application provides a circulating cooling system, the circulating cooling system comprising a first circulating loop;

[0006] The first circulation loop comprises a cooling plate, a pressure regulating container and a driving pump connected in series, wherein the cooling plate, the pressure regulating container and the driving pump are sequentially connected through a first pipe, a fluid medium flows in the first pipe, and the cooling plate is used to absorb the heat dissipated by the heating module; the driving pump is used to drive the fluid medium to flow in the plurality of first pipes and the first circulation loop to dissipate the heat absorbed by the cooling plate;

[0007] A pressure regulating medium is sealed in the pressure regulating container. When the fluid medium expands, the pressure regulating medium is compressed to cause the pressure regulating medium to contract, thereby reducing the hydraulic pressure of the fluid medium.

[0008] Optionally, the circulating cooling system includes a second circulating loop;

[0009] The second circulation loop includes a compressor, a condenser and a heat exchanger connected in series. The compressor, the condenser and the heat exchanger are connected in sequence through a second pipe. A refrigerant is sealed in the second pipe. The refrigerant has two forms, liquid and gaseous. The liquid refrigerant absorbs heat and becomes a gaseous refrigerant when flowing through the heat exchanger. The compressor compresses the gaseous refrigerant and transports it to the condenser. The condenser cools the compressed gaseous refrigerant into a liquid refrigerant and flows to the heat exchanger. The multiple first pipes are isolated from the multiple second pipes, and the heat dissipation fluid medium in the multiple first pipes and the refrigerant in the multiple second pipes are not exchanged.

[0010] Optionally, the circulating cooling system includes a fan, which is disposed on the condenser and is used to blow air toward the condenser to take away heat emitted by the condenser.

[0011] Optionally, the second circulation loop includes a capillary tube, the diameter of the capillary tube is smaller than that of the second pipeline, and the condenser, the capillary tube and the heat exchange tube are connected in series in sequence.

[0012] Optionally, the first circulation loop includes a first inspection valve, a second inspection valve, a third inspection valve and a fourth inspection valve, the first inspection valve is located between the pressure regulating container and the heat exchanger, the second inspection valve is located between the cooling plate and the heat exchanger, the third inspection valve is located between the cooling plate and the driving pump, and the fourth inspection valve is located between the pressure regulating container and the driving pump.

[0013] Optionally, the first circulation loop includes multiple detection components, which are used to detect the fluid medium in the first pipeline. The detection components are arranged between the pressure regulating container and the heat exchanger, between the cooling plate and the heat exchanger, between the cooling plate and the driving pump, and between the pressure regulating container and the driving pump.

[0014] Optionally, the detection component includes a first tee and a second tee connected in series, the first end of the first tee and the first end of the second tee are respectively connected to the two first pipes connected to the detection component, the second end of the first tee and the second end of the second tee are connected, the third end of the first tee is connected to a pressure sensor, and the pressure sensor is used to detect the pressure in the first pipe, and the third end of the second tee is connected to a temperature sensor, and the temperature sensor is used to detect the temperature of the liquid in the first pipe.

[0015] Optionally, the first circulation loop also includes a flow regulating valve, a drain assembly, a stress reliever, a filter, a deionizer and a first flow meter connected in series in sequence, and the stress reliever, the filter, the deionizer and the first flow meter are located between the fourth inspection valve and the drive pump.

[0016] Optionally, the drain assembly includes a third tee and a drain valve, the first end and the second end of the third tee are connected to the fourth inspection valve and the stress reliever through the two first pipes respectively, and the third end of the third tee is connected to the drain valve.

[0017] To solve the above problems, in a second aspect, the present application provides a lighting device, wherein the lighting device comprises the circulating cooling system described in any one of the above items.

[0018] The beneficial effects of the present application are as follows: Different from the prior art, the present application provides a circulating cooling system, which includes a first circulating loop; the first circulating loop includes a cooling plate, a pressure regulating container and a driving pump connected in series, the cooling plate, the pressure regulating container and the driving pump are connected in sequence through a first pipe, a fluid medium flows in the first pipe, the cooling plate is used to absorb the heat emitted by the heat generating module; the driving pump is used to drive the fluid medium to flow in multiple first pipes and the first circulating loop to emit the heat absorbed by the cooling plate; a pressure regulating medium is sealed in the pressure regulating container, and the fluid medium compresses the pressure regulating medium when expanding to make the pressure regulating medium contract, so as to reduce the hydraulic pressure of the fluid medium. There are heat dissipation fluid medium and pressure regulating medium in the pressure regulating container of the present application at the same time, when the heat dissipation fluid medium absorbs the heat of the heat generating module from the cooling plate, the heat dissipation fluid medium expands, squeezes the pressure regulating medium in the pressure regulating container, releases pressure to the pressure regulating medium, so that the pressure in multiple first pipes is reduced, and the pressure in the circulating cooling system can be stabilized in a range with a small fluctuation, avoiding the high pressure inside the cooling system causing the cooling system to fail. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of a circulating cooling system provided in an embodiment of the present application;

[0021] Figure 2 It is a schematic diagram of the structure of a detection component in an embodiment of a circulating cooling system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0023] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0024] In this application, the word "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described in this application as "exemplary" is not necessarily to be construed as being preferred or advantageous over other embodiments. The following description is given to enable any technician in the field to implement and use the present application. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present application can be implemented without using these specific details. In other instances, well-known structures and processes will not be elaborated in detail to avoid obscuring the description of the present application with unnecessary details. Therefore, the present application is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0025] The embodiment of the present application provides a circulating cooling system, which includes a first circulating loop; the first circulating loop includes a cooling plate, a pressure regulating container and a driving pump connected in series, the cooling plate, the pressure regulating container and the driving pump are sequentially connected through a first pipe, a fluid medium flows in the first pipe, the cooling plate is used to absorb the heat dissipated by the heating module; the driving pump is used to drive the fluid medium to flow in multiple first pipes and the first circulating loop to dissipate the heat absorbed by the cooling plate; a pressure regulating medium is sealed in the pressure regulating container, and the fluid medium compresses the pressure regulating medium when expanding to make the pressure regulating medium contract, so as to reduce the hydraulic pressure of the fluid medium. The following are detailed descriptions respectively.

[0026] Combination Figure 1-Figure 2 In an embodiment of the present application, the circulating cooling system 10 includes a first circulation loop. The first circulation loop includes a cooling plate 14, a pressure regulating container 16 and a driving pump 11 connected in series, and a heat dissipation fluid medium flows in the first pipe 19. The cooling plate 14, the pressure regulating container 16 and the driving pump 11 are connected in sequence through the first pipe 19. The cooling plate 14 is used to absorb the heat dissipated by the heating module. The driving pump 11 is used to drive the heat dissipation fluid medium to flow in multiple first pipes 19 and the first circulation loop to dissipate the heat absorbed by the cooling plate 14. A pressure regulating medium is sealed in the pressure regulating container 16, and the heat dissipation fluid medium compresses the pressure regulating medium when expanding to cause the pressure regulating medium to contract, so as to reduce the hydraulic pressure of the heat dissipation fluid medium.

[0027] Through a lot of research, it is found that as the power of the photographic lamp increases and the ambient temperature rises, the power density of the lamp continues to increase. If there is not enough heat dissipation capacity, the lamp will burn out. The heat pipe and the temperature plate are limited by their principles and have limited heat transfer capacity. The heat dissipation efficiency of the radiator related to the heat pipe and the temperature plate will gradually decrease, and the radiator will also increase sharply. At the same time, the heat flux density of the lamp gradually increases, and it is difficult to meet the needs of high power and small heat source area by using heat pipes and temperature plates. The existing liquid cooling technology fluid will change with the working process of the photographic lamp, and the pressure in the liquid cooling cycle will also increase with the increase in temperature, causing each component to be under pressure and malfunction. The pressure regulating container 16 of the present application contains both heat dissipation fluid medium and pressure regulating medium. When the heat dissipation fluid medium absorbs the heat of the heating module from the cooling plate 14, the heat dissipation fluid medium expands, squeezing the pressure regulating medium in the pressure regulating container 16 at this time, releasing pressure to the pressure regulating medium, so that the pressure in the multiple first pipes 19 is reduced, which can stabilize the pressure in the circulating cooling system within a range with small fluctuations.

[0028] The heating module may be a component in a lamp or other electronic device. In one embodiment, the heating module may be a COB (Chip On Board) light source, which is a component that directly attaches an LED chip to a highly reflective mirror metal substrate. When the COB light source is used, it generates a lot of heat, so it needs to be dissipated.

[0029] The heat dissipation fluid medium may be coolant or water, which is set according to specific circumstances.

[0030] In the embodiment of the present application, the driving pump 11 is a fixed frequency or variable frequency water pump. A fixed frequency water pump refers to a water pump unit whose frequency and speed are fixed and whose motor rotation speed cannot be changed without external force. For example, a 50HZ power supply is generally used in China, and the motor speed is mostly a two-pole motor with a speed of 2850-2900r / min, or a four-pole motor with a speed of 1450-1500r / min. The use of a fixed frequency water pump has a simple function, a relatively low cost, and a low cost for later maintenance, which can reduce the production cost of the circulating cooling system 10. Of course, in other embodiments, the driving pump 11 can also use a variable frequency water pump, and this application does not limit this.

[0031] In the embodiment of the present application, the pressure regulating medium sealed in the pressure regulating container 16 can be a gas medium such as air, various single gases, or a solid medium with elasticity such as rubber, which can be selected according to the specific situation.

[0032] In the embodiment of the present application, the cooling plate 14 is a copper plate. In other embodiments, the cooling plate 14 may also be an aluminum plate or other material with thermal conductivity, which can be selected according to specific circumstances.

[0033] In the embodiment of the present application, the circulating cooling system 10 includes a second circulation loop. The second circulation loop includes a compressor 21, a condenser 22 and a heat exchanger 30 connected in series. The compressor 21, the condenser 22 and the heat exchanger 30 are connected in sequence through the second pipe 29. A refrigerant is sealed in the second pipe 29. The refrigerant has two forms, liquid and gaseous. When the liquid refrigerant flows through the heat exchanger 30, it absorbs heat and becomes a gaseous refrigerant. The compressor 21 compresses the gaseous refrigerant and transports it to the condenser 22. The condenser 22 cools the compressed gaseous refrigerant into a liquid refrigerant and flows to the heat exchanger 30. The multiple first pipes 19 and the multiple second pipes 29 are isolated from each other, and the heat dissipation fluid medium in the multiple first pipes 19 and the refrigerant in the multiple second pipes 29 are not exchanged.

[0034] Among them, the compressor is a driven fluid machine that boosts low-pressure gas to high-pressure gas, and is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas, compresses it through the operation of the motor to drive the piston, and then discharges high-temperature and high-pressure refrigerant gas to provide power for the refrigeration cycle. The model of the compressor 21 in this application can be selected according to the specific situation.

[0035] In the embodiment of the present application, the condenser includes a copper tube and an aluminum fin. The copper tube is in close contact with the aluminum fin. When wind blows through the gap between the aluminum fins, it takes away the heat of the refrigerant in the copper tube.

[0036] The condenser is a component of the refrigeration system that can convert gas or steam into liquid and quickly transfer the heat in the tube to the air near the tube. The working process of the condenser is a heat release process, so the condenser temperature is relatively high.

[0037] Among them, refrigerant, also known as coolant, refrigerant, is a medium substance used to complete energy conversion in various heat engines. These substances usually increase power by reversible phase change. For example, steam in steam engines, refrigerant in refrigerators, etc. When a general steam engine is working, it releases the heat energy of steam and converts it into mechanical energy to generate motive power; while the refrigerant in the refrigerator is used to transfer heat from low temperature to high temperature.

[0038] In the embodiment of the present application, the refrigerant is a fluorine refrigerant, such as chlorofluorocarbon. Fluorine refrigerant has a good refrigeration effect and can improve the refrigeration effect of the circulating cooling system 10. In other embodiments, the refrigerant can also be selected from ammonia, sulfur dioxide and non-halogenated hydrocarbons.

[0039] Among them, the heat exchanger 30 (also called a heat exchanger or heat exchange equipment) is a device used to transfer heat from a hot fluid to a cold fluid to meet the specified process requirements. It is an industrial application of convective heat transfer and heat conduction. The heat exchanger 30 can be classified in different ways. According to its operation process, it can be divided into three categories: partition type, hybrid type, and heat storage type (or heat recovery type); according to the compactness of its surface, it can be divided into two categories: compact type and non-compact type. In the embodiment of the present application, the type of heat exchanger 30 can be selected according to the specific situation.

[0040] In a specific embodiment, the heat exchanger 30 includes a heat medium inlet, a heat medium outlet, a refrigerant inlet, and a refrigerant outlet. The heat medium inlet of the heat exchanger 30 is connected to the cooling plate 14 through a first pipe 19, and the heat medium outlet of the heat exchanger 30 is connected to the pressure regulating container 16 through a first pipe 19. The heat dissipation fluid medium with heat flowing out of the cooling plate 14 enters the heat exchanger 30 from the heat medium inlet and becomes a cooling heat dissipation fluid medium. The cooling heat dissipation fluid medium flows out from the heat medium outlet and enters the pressure regulating container 16, and then flows through the driving pump 11 and the cooling plate 14 and re-enters the heat exchanger 30 for circulation. The refrigerant inlet of the heat exchanger 30 is connected to the condenser 22 through a second pipe 29, and the refrigerant outlet of the heat exchanger 30 is connected to the compressor 21 through a second pipe 29. The liquid refrigerant flowing out of the condenser 22 enters the heat exchanger 30 from the refrigerant inlet and becomes a gaseous refrigerant, and flows out from the refrigerant outlet and enters the compressor 21. The compressor 21 compresses the gaseous refrigerant and sends it to the condenser 22 for circulation. The heat exchanger 30 exchanges heat between the heat dissipation fluid medium and the refrigerant, but does not exchange the heat dissipation fluid medium and the refrigerant. Only heat is exchanged between the first circulation loop and the second circulation loop, but the heat dissipation fluid medium and the refrigerant are not exchanged, which can ensure that the two circulation loops work independently. When one of the circulation loops fails, the other circulation loop can continue to work, thereby improving the system fault tolerance rate, narrowing the scope of maintenance and investigation, and improving maintenance efficiency.

[0041] In the embodiment of the present application, the first circulation loop is filled with heat dissipation fluid medium.

[0042] In the embodiment of the present application, the circulating cooling system 10 includes a fan, which is disposed on the condenser 22 and is used to blow air toward the condenser 22 to remove the heat emitted by the condenser 22. The fan may be a fixed frequency fan or a variable frequency fan.

[0043] In the embodiment of the present application, the second circulation loop includes a capillary tube 23, the diameter of the capillary tube 23 is smaller than the second pipe 29, and the condenser 22, the capillary tube 23 and the heat exchange tube 30 are connected in series in sequence. The capillary tube 23 is a throttling device commonly used in refrigeration systems, and the capillary tube 23 generally refers to a slender copper tube with an inner diameter of 0.4 to 2.0 mm.

[0044] Furthermore, a second flow meter 24 is provided between the capillary tube 23 and the heat exchanger 30 , and the second flow meter 24 is used to detect the flow of the second pipeline 29 .

[0045] In the embodiment of the present application, the first circulation loop includes a first inspection valve 131, a second inspection valve 132, a third inspection valve 133 and a fourth inspection valve 134. The first inspection valve 131 is located between the pressure regulating container 16 and the heat exchanger 30, the second inspection valve 132 is located between the cooling plate 14 and the heat exchanger 30, the third inspection valve 133 is located between the cooling plate 14 and the driving pump 11, and the fourth inspection valve 134 is located between the pressure regulating container 16 and the driving pump 11. When any one of the components of the pressure regulating container 16, the heat exchanger 30, the cooling plate 14 and the driving pump 11 is damaged, the two inspection valves of the damaged component can be closed, so as to replace or repair the damaged component. When the heat exchanger 30 is damaged, the first inspection valve 131 and the second inspection valve 132 are closed, and the heat exchanger 30 is replaced or repaired. When the cooling plate 14 is damaged, the third inspection valve 133 and the second inspection valve 132 are closed, and the cooling plate 14 is replaced or repaired. When the pressure regulating container 16 is damaged, the first inspection valve 131 and the fourth inspection valve 134 are closed, and the pressure regulating container 16 is replaced or repaired. When the driving pump 11 is damaged, the third inspection valve 133 and the fourth inspection valve 134 are closed, and the driving pump 11 is replaced or repaired.

[0046] In the embodiment of the present application, the first circulation loop includes a plurality of detection components 12, which are used to detect the heat dissipation fluid medium in the first pipeline 19. Detection components 12 are provided between the pressure regulating container 16 and the heat exchanger 30, between the cooling plate 14 and the heat exchanger 30, between the cooling plate 14 and the driving pump 11, and between the pressure regulating container 16 and the driving pump 11. The plurality of detection components 12 are used to detect the inlet and outlet temperatures of the driving pump 11, the inlet and outlet pressures of the driving pump 11, the inlet and outlet temperatures of the cooling plate 14, the inlet and outlet pressures of the cooling plate 14, the inlet and outlet temperatures of the heat exchanger 30, and the inlet and outlet pressures of the heat exchanger 30.

[0047] See also Figure 2 In the embodiment of the present application, the detection component 12 includes a first tee 121 and a second tee 122 connected in series, and the first end of the first tee 121 and the first end of the second tee 122 are respectively connected to two first pipes 19 connected to the detection component 12. The second end of the first tee 121 is connected to the second end of the second tee 122, and the third end of the first tee 121 is connected to a pressure sensor 123, which is used to detect the pressure in the first pipe 19, and the third end of the second tee 122 is connected to a temperature sensor 124, which is used to detect the temperature of the liquid in the first pipe 19.

[0048] Furthermore, the first circulation loop includes a descaling agent feeder 15, which is connected in series between the first inspection valve 131 and the detection component 12. When dirt appears in the circulating cooling system 10, descaling agent can be added through the descaling agent feeder 15 to clean the system, reduce system resistance, and ensure the normal operation of the above-mentioned components.

[0049] In the embodiment of the present application, the first circulation loop also includes a flow regulating valve 171, a water discharge component 179, a stress reliever 173, a filter 174, a deionizer 175 and a first flow meter 176 connected in series in sequence, and the flow regulating valve 171, the water discharge component 179, the stress reliever 173, the filter 174, the deionizer 175 and the first flow meter 176 are located between the fourth inspection valve 134 and the drive pump 11. The flow regulating valve 171 is used to manually adjust the flow rate of the system operation according to the needs of the system. The stress reliever 173 is used to eliminate the instantaneous impact force of the fluid medium on the system due to the sudden start-up when the system is started. The filter 174 is used to filter out impurities with larger particles in the system. The deionizer 175 is used to filter out impurities with smaller particles in the system or ionic impurities dissolved in the fluid medium. The first flow meter 176 is used to monitor the flow rate of the fluid medium when the system is running.

[0050] In the embodiment of the present application, the drain assembly 179 includes a third three-way connection 172 and a drain valve 177. The first end and the second end of the third three-way connection 172 are respectively connected to the flow regulating valve 171 and the stress reliever 173 through two first pipes 19. The third end of the third three-way connection 172 is connected to the drain valve 177. When the drain valve 177 is opened, the heat dissipation fluid medium in the first pipe 19 can be drained.

[0051] The working principle of the circulating cooling system 10 of the present application is as follows:

[0052] The heat generating module is mounted on the cooling plate 14. The heat generated by the heat generating module is absorbed by the cooling plate 14 and transferred to the heat dissipation fluid medium in the first pipe 19, so that the heat dissipation fluid medium is heated. The driving pump 11 drives the heated heat dissipation fluid medium in the first pipe 19 to flow and enter the heat exchanger 30. The heat exchanger 30 exchanges the heat in the heated heat dissipation fluid medium to the refrigerant in the second pipe 29 for heat dissipation, and returns the cooled heat dissipation fluid medium to the cooling plate 14 through the pressure regulating container 16, the flow regulating valve 171, the drain assembly 179, the stress reliever 173, the filter 174, the deionizer 175, the first flow meter 176 and the driving pump in sequence. At this time, the heat dissipation fluid medium returned to the cooling plate 14 has cooled down and can continue to absorb heat from the heat generating module, repeating the first refrigeration cycle.

[0053] After the heat exchanger 30 exchanges the heat in the heated heat dissipation fluid medium to the refrigerant in the second pipe 29, the liquid refrigerant entering the heat exchanger 30 absorbs heat and becomes a gaseous refrigerant. The gaseous refrigerant enters the compressor 21. The compressor 21 compresses the gaseous refrigerant and heats it up before sending it to the condenser 22. The gaseous refrigerant is liquefied into a liquid refrigerant in the condenser 22, and the heat is taken away by the fan on the condenser 22. The liquid refrigerant passes through the capillary 23 and the second flowmeter 24 in turn and enters the heat exchanger 30, reabsorbing the heat of the heat exchanger 30, and repeating the second refrigeration cycle. The two cycles are independent of each other, and there is heat exchange only in the heat exchanger 30, and there is no exchange between the heat dissipation fluid mechanism and the fluorine refrigerant.

[0054] The present application also provides a lighting device, which includes any of the above-mentioned circulating cooling systems 10, and the cooling plate 14 of the circulating cooling system 10 is connected to the heating module of the electronic device to dissipate heat from the heating module.

[0055] Different from the prior art, the present application provides a circulating cooling system, which includes a first circulating loop; the first circulating loop includes a cooling plate, a pressure regulating container and a driving pump connected in series, the cooling plate, the pressure regulating container and the driving pump are sequentially connected through a first pipe, a fluid medium flows in the first pipe, the cooling plate is used to absorb the heat emitted by the heat generating module; the driving pump is used to drive the fluid medium to flow in multiple first pipes and the first circulating loop to emit the heat absorbed by the cooling plate; a pressure regulating medium is sealed in the pressure regulating container, and the fluid medium compresses the pressure regulating medium when expanding to make the pressure regulating medium contract, so as to reduce the hydraulic pressure of the fluid medium. The pressure regulating container of the present application contains both heat dissipation fluid medium and pressure regulating medium. When the heat dissipation fluid medium absorbs the heat of the heat generating module from the cooling plate, the heat dissipation fluid medium expands, squeezes the pressure regulating medium in the pressure regulating container, releases pressure to the pressure regulating medium, and reduces the pressure in multiple first pipes, which can stabilize the pressure in the circulating cooling system in a range with small fluctuations, and avoid the high pressure inside the cooling system causing the cooling system to fail.

[0056] In specific implementation, the above units or structures can be implemented as independent entities, or can be arbitrarily combined to be implemented as the same or several entities. The specific implementation of the above units or structures can refer to the previous method embodiments, which will not be repeated here.

[0057] The above is a detailed introduction to a circulating cooling system and lighting equipment provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and embodiments of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A circulating cooling system (10), characterized in that: The circulating cooling system (10) comprises a first circulating loop; The first circulation loop comprises a cooling plate (14), a pressure regulating container (16) and a driving pump (11) connected in series, wherein the cooling plate (14), the pressure regulating container (16) and the driving pump (11) are connected in sequence via a first pipeline (19), and a fluid medium flows in the first pipeline (19); The cooling plate (14) is used to absorb the heat emitted by the heating module; The driving pump (11) is used to drive the fluid medium to flow in the plurality of first pipes (19) and the first circulation loop to dissipate the heat absorbed by the cooling plate (14); A pressure regulating medium is sealed in the pressure regulating container (16), and when the fluid medium expands, the pressure regulating medium is compressed to cause the pressure regulating medium to contract, thereby reducing the hydraulic pressure of the fluid medium; The circulating cooling system (10) further comprises a heat exchanger (30), the first circulation loop comprises at least one of a first inspection valve (131), a second inspection valve (132), a third inspection valve (133) and a fourth inspection valve (134), the first inspection valve (131) being located between the pressure regulating container (16) and the heat exchanger (30), the second inspection valve (132) being located between the cooling plate (14) and the heat exchanger (30), the third inspection valve (133) being located between the cooling plate (14) and the driving pump (11), and the fourth inspection valve (134) being located between the pressure regulating container (16) and the driving pump (11).

2. The circulating cooling system (10) according to claim 1, characterized in that: The circulating cooling system (10) comprises a second circulating loop; The second circulation loop comprises a compressor (21), a condenser (22) and a heat exchanger (30) connected in series. The compressor (21), the condenser (22) and the heat exchanger (30) are connected in sequence through a second pipe (29). A refrigerant is sealed in the second pipe (29). The refrigerant has two forms, liquid and gas. When the liquid refrigerant flows through the heat exchanger (30), it absorbs heat and becomes a gaseous refrigerant. The compressor (21) compresses the gaseous refrigerant and transports it to the condenser (22). The condenser (22) cools the compressed gaseous refrigerant into a liquid refrigerant and flows to the heat exchanger (30). The plurality of first pipes (19) and the plurality of second pipes (29) are isolated from each other. The heat dissipation fluid medium in the plurality of first pipes (19) and the refrigerant in the plurality of second pipes (29) are not exchanged.

3. The circulating cooling system (10) according to claim 2, characterized in that: The circulating cooling system (10) comprises a fan, which is arranged on the condenser (22) and is used to blow air toward the condenser (22) to remove heat emitted by the condenser (22).

4. The circulating cooling system (10) according to claim 2, characterized in that: The second circulation loop comprises a capillary tube (23), the diameter of the capillary tube (23) is smaller than that of the second pipeline (29), and the condenser (22), the capillary tube (23) and the heat exchanger (30) are connected in series in sequence.

5. The circulating cooling system (10) according to claim 1, characterized in that: The first circulation loop comprises a plurality of detection components (12), wherein the detection components (12) are used to detect the fluid medium in the first pipeline (19), and the detection components (12) are arranged between the pressure regulating container (16) and the heat exchanger (30), between the cooling plate (14) and the heat exchanger (30), between the cooling plate (14) and the driving pump (11), and between the pressure regulating container (16) and the driving pump (11).

6. The circulating cooling system (10) according to claim 5, characterized in that: The detection component (12) comprises a first tee (121) and a second tee (122) connected in series, wherein a first end of the first tee (121) and a first end of the second tee (122) are respectively connected to two first pipes (19) connected to the detection component (12), a second end of the first tee (121) and a second end of the second tee (122) are connected, a third end of the first tee (121) is connected to a pressure sensor (123), and the pressure sensor (123) is used to detect the pressure in the first pipe (19), and a third end of the second tee (122) is connected to a temperature sensor (124), and the temperature sensor (124) is used to detect the temperature of the liquid in the first pipe (19).

7. The circulating cooling system (10) according to claim 6, characterized in that: The first circulation loop also includes a flow regulating valve (171), a drain assembly (179), a stress reliever (173), a filter (174), a deionizer (175) and a first flow meter (176) which are connected in series in sequence, and the stress reliever (173), the filter (174), the deionizer (175) and the first flow meter (176) are located between the fourth inspection valve (134) and the drive pump (11).

8. The circulating cooling system (10) according to claim 7, characterized in that: The drain assembly (179) comprises a third three-way connection (172) and a drain valve (177); the first end and the second end of the third three-way connection (172) are connected to the fourth inspection valve (134) and the stress reliever (173) via two of the first pipes (19), respectively; the third end of the third three-way connection (172) is connected to the drain valve (177).

9. A lighting device, characterized in that: The lighting device comprises the circulating cooling system according to any one of claims 1-8.

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