CN-115145376-B - Combined cooling system

Abstract

The invention discloses a compound cooling system which comprises a heat exchanger and a refrigerating system. A composite cooling system comprises a heat exchanger for exchanging cold and heat energy, and a freezing system connected with the heat exchanger for forming a main freezing cycle and an auxiliary freezing cycle, wherein the composite cooling system comprises at least one expansion valve, and the expansion valve is controlled to enable cold energy generated by the main freezing cycle to conduct secondary heat dissipation on a heat source with high heat productivity through the heat exchanger, and enable the auxiliary freezing cycle to conduct heat dissipation on other heat sources. The heat exchanger has a cold end inlet, a cold end outlet, a hot end inlet, and a hot end outlet. The cold end inlet is communicated with the cold end outlet. The hot end inlet is communicated with the hot end outlet and is not communicated with the cold end inlet and the cold end outlet. The refrigerating system comprises an expansion valve, a heat dissipation unit and a compressor. An expansion valve is connected to the cold end inlet. The heat dissipation unit is connected to the expansion valve. The compressor is connected with the heat radiating unit and the cold end outlet.

Inventors

• LIN WENXIAN
• LIU TENGLONG

Assignees

• 讯凯国际股份有限公司

Dates

Publication Date

20260508

Application Date

20210420

Priority Date

20210331

Claims (19)

1. 1. A compound cooling system, comprising: A heat exchanger for exchanging cold and heat energy, and A refrigeration system coupled to the heat exchanger for forming a primary refrigeration cycle and a secondary refrigeration cycle, comprising: At least one expansion valve, through controlling the expansion valve, the cold energy generated by the main refrigeration cycle can perform secondary water cooling heat dissipation on the electronic element of the heat source with high heating value through the heat exchanger, and the auxiliary refrigeration cycle performs air cooling heat dissipation on other heat sources; The water cooling system is used for carrying out primary heat dissipation on the high-calorific-value heat source and comprises a water cooling head, a water cooling row and a water cooling fan, wherein the water cooling head is used for being thermally coupled with an electronic element of the high-calorific-value heat source so as to transfer heat generated by the high-calorific-value heat source to cooling liquid, the cooling liquid after absorbing the heat can firstly carry out primary heat dissipation through the water cooling row, then carries out secondary heat dissipation through a low-temperature refrigerant of the refrigerating system, and the low-temperature cooling liquid after heat dissipation flows back to the water cooling head to carry out secondary heat dissipation on the electronic element of the high-calorific-value heat source; The electronic device cooling system further comprises a controller and a temperature sensor, wherein the controller controls the water cooling fan to be turned on or turned off and the air flow direction to be controlled through the temperature value of the cooling liquid sensed by the temperature sensor, when the temperature of the cooling liquid of the water cooling system is high, the controller controls the water cooling fan to pump out air inside the electronic device to reduce the temperature of the cooling liquid of the water cooling system, when the temperature of the cooling liquid of the water cooling system is low, the controller controls the water cooling fan to blow out air outside the electronic device to reduce the temperature inside the electronic device, and when the temperature value of the cooling liquid sensed by the temperature sensor reaches a default upper limit value, the controller enables the refrigerant system to stop running.
2. 2. The composite cooling system of claim 1, wherein, The heat exchanger comprises a cold end inlet, a cold end outlet, a hot end inlet and a hot end outlet, wherein the cold end inlet is communicated with the cold end outlet, the hot end inlet is communicated with the hot end outlet and is not communicated with the cold end inlet and the cold end outlet, and A refrigeration system, comprising: the compressor is connected with the cold end outlet and used for compressing and driving the refrigerant to form a high-pressure high-temperature gaseous refrigerant; the heat radiating unit is connected with the outlet of the compressor and is used for condensing the high-pressure high-temperature gaseous refrigerant to form a high-pressure normal-temperature liquid refrigerant; The first expansion valve is connected with the outlet of the heat radiating unit and the cold end inlet and is used for reducing the pressure of the high-pressure normal-temperature liquid refrigerant into a low-pressure low Wen Yeqi mixed refrigerant, and the mixed refrigerant enters the heat exchanger through the cold end inlet to absorb heat and convert the heat into a low-pressure low-temperature gaseous refrigerant so as to radiate heat of a high-heat-generation heat source for the second time; the second expansion valve is connected to the outlet of the heat radiating unit and is used for reducing the pressure of the high-pressure normal-temperature liquid refrigerant into a low-pressure Wen Yeqi mixed refrigerant; and the air cooling unit is connected with the second expansion valve and is used for absorbing heat of the low-pressure low-Wen Yeqi mixed refrigerant and converting the low-pressure low-temperature gaseous refrigerant into low-pressure low-temperature gaseous refrigerant so as to dissipate heat of other heat sources.
3. 3. The compound cooling system of claim 2, wherein the refrigeration system further comprises: The first branch pipe is provided with a first pipe part, a second pipe part and a third pipe part, the first pipe part is connected with the first expansion valve, and the second pipe part and the third pipe part are communicated with the first pipe part; The second branch pipe is provided with a fourth pipe part, a fifth pipe part and a sixth pipe part, the fourth pipe part and the fifth pipe part are communicated with the sixth pipe part, the fourth pipe part is connected with the air cooling unit, and the fifth pipe part is connected with the cold end outlet.
4. 4. The compound cooling system as defined in claim 3, wherein the refrigeration system further comprises a liquid storage assembly, the liquid storage assembly engaging the compressor with the sixth tube portion of the second manifold.
5. 5. The hybrid cooling system of claim 2, wherein the air-cooling unit comprises an evaporator and an air-cooling fan, the evaporator is connected to the second expansion valve, and the air-cooling fan is installed on the evaporator.
6. 6. The hybrid cooling system of claim 3, wherein the heat dissipating unit comprises a condenser and a heat dissipating fan, the condenser connecting the compressor and the third pipe portion of the first manifold, the heat dissipating fan being mounted to the condenser.
7. 7. The hybrid cooling system of claim 2, wherein the water cooling head is configured in series with the water cooling row, and the water cooling head is connected to the hot side outlet, and the water cooling row is connected to the hot side inlet.
8. 8. The hybrid cooling system of claim 7, wherein the water cooling fan is mounted to the water cooled row.
9. 9. The hybrid cooling system of claim 2, wherein the water cooling head and the water cooling bank are configured in parallel, and two ends of the water cooling head and the water cooling bank are respectively connected to the hot end outlet and the hot end inlet.
10. 10. The hybrid cooling system of claim 9, wherein the water cooling fan is mounted to the water cooled row.
11. 11. A compound cooling system, comprising: A heat exchanger for exchanging cold and heat energy, and A refrigeration system coupled to the heat exchanger for forming a primary refrigeration cycle and a secondary refrigeration cycle, comprising: At least one expansion valve, through controlling the expansion valve, the cold energy produced by the main refrigeration cycle can be used for carrying out secondary heat dissipation on the heat source with high heat productivity through the heat exchanger; The water cooling system is used for carrying out primary heat dissipation on the high-calorific-value heat source and comprises a water cooling head, a water cooling row and a water cooling fan, wherein the water cooling head is used for being thermally coupled with an electronic element of the high-calorific-value heat source so as to transfer heat generated by the high-calorific-value heat source to cooling liquid, the cooling liquid after absorbing the heat can firstly carry out primary heat dissipation through the water cooling row, then carries out secondary heat dissipation through a low-temperature refrigerant of the refrigerating system, and the low-temperature cooling liquid after heat dissipation flows back to the water cooling head to carry out secondary heat dissipation on the electronic element of the high-calorific-value heat source; The electronic device cooling system further comprises a controller and a temperature sensor, wherein the controller controls the water cooling fan to be turned on or turned off and the air flow direction to be controlled through the temperature value of the cooling liquid sensed by the temperature sensor, when the temperature of the cooling liquid of the water cooling system is high, the controller controls the water cooling fan to pump out air inside the electronic device to reduce the temperature of the cooling liquid of the water cooling system, when the temperature of the cooling liquid of the water cooling system is low, the controller controls the water cooling fan to blow out air outside the electronic device to reduce the temperature inside the electronic device, and when the temperature value of the cooling liquid sensed by the temperature sensor reaches a default upper limit value, the controller enables the refrigerant system to stop running.
12. 12. The composite cooling system of claim 11, comprising: The heat exchanger comprises a cold end inlet, a cold end outlet, a hot end inlet and a hot end outlet, wherein the cold end inlet is communicated with the cold end outlet, the hot end inlet is communicated with the hot end outlet and is not communicated with the cold end inlet and the cold end outlet, and A refrigeration system, comprising: the compressor is connected with the cold end outlet and used for compressing and driving the refrigerant to form a high-pressure high-temperature gaseous refrigerant; the heat radiating unit is connected with the outlet of the compressor and is used for condensing the high-pressure high-temperature gaseous refrigerant to form a high-pressure normal-temperature liquid refrigerant; And the expansion valve is connected with the outlet of the heat radiating unit and the cold end inlet and is used for reducing the pressure of the high-pressure normal-temperature liquid refrigerant into a low-pressure low Wen Yeqi mixed refrigerant, and the mixed refrigerant enters the heat exchanger through the cold end inlet to absorb heat and is converted into a low-pressure low-temperature gaseous refrigerant so as to radiate heat of the high-heating-value heat source for the second time.
13. 13. The hybrid cooling system of claim 12, wherein the refrigeration system further comprises a first manifold and a second manifold, the first manifold has a first pipe portion, a second pipe portion and a third pipe portion, the first pipe portion is connected to the expansion valve, the second pipe portion and the third pipe portion are both connected to the first pipe portion, the heat dissipating unit is connected to the second pipe portion or the third pipe portion, the second manifold has a fourth pipe portion, a fifth pipe portion and a sixth pipe portion, the fourth pipe portion and the fifth pipe portion are both connected to the sixth pipe portion, the fourth pipe portion or the fifth pipe portion is connected to the cold end outlet, and the sixth pipe portion is connected to the compressor.
14. 14. The compound cooling system as defined in claim 13, wherein the refrigeration system further comprises a liquid storage assembly, the liquid storage assembly engaging the compressor with the sixth tube portion of the second manifold.
15. 15. The hybrid cooling system of claim 12, wherein the heat dissipating unit comprises a condenser and a heat dissipating fan, the condenser connecting the compressor and the expansion valve, the heat dissipating fan being mounted to the condenser.
16. 16. The hybrid cooling system of claim 12, wherein the water cooling head is configured in series with the water cooling row, and the water cooling head is connected to the hot side outlet, and the water cooling row is connected to the hot side inlet.
17. 17. The hybrid cooling system of claim 16, wherein the water cooling fan is mounted to the water cooled row.
18. 18. The hybrid cooling system of claim 12, wherein the water cooling head and the water cooling bank are configured in parallel, and two ends of the water cooling head and the water cooling bank are connected to the hot side outlet and the hot side inlet, respectively.
19. 19. The hybrid cooling system of claim 18, wherein the water cooling fan is mounted to the water cooled row.

Description

Combined cooling system Technical Field The present invention relates to a cooling system, and more particularly, to a composite cooling system. Background In the age of rapid development of technology, progress of the computer industry is an index of technology development. In order to improve the performance of computers, large computer companies in the world are continually developing new motherboards and chips (e.g., cpus, display adapters, sound cards, and memories). For example, central processors evolved from original single-core processors to dual-core processors and evolved into today's multi-core processors. Although various electronic components on a computer motherboard are continuously updated, it is still unavoidable that heat energy is generated by internal resistance of the electronic components themselves when current flows. When the heat energy is too high, the temperature of the electronic component is increased, which easily reduces the operation efficiency of the electronic component. Furthermore, when the temperature of the electronic device reaches a critical temperature, the electronic device is damaged due to the high temperature, so that the computer is turned on. To address the negative effects of thermal energy on electronic components, one may mount a heat sink on the electronic component or motherboard. Of these, two types of heat sinks are most common. The two types of heat sinks are air-cooled heat sinks and water-cooled heat sinks. However, it is difficult to meet the high heat dissipation requirement of the current electronic devices with a single type of heat dissipation system such as an air-cooled heat sink and a water-cooled heat sink. Therefore, how to make the heat dissipation system meet the high heat dissipation requirement of the current electronic device is one of the problems that the research personnel should solve. Disclosure of Invention Accordingly, the present invention is directed to a composite cooling system, which is capable of meeting the high heat dissipation requirements of the current electronic components. The invention provides a combined cooling system which comprises a heat exchanger and a refrigerating system, wherein the heat exchanger is used for exchanging cold and heat energy, the refrigerating system is connected with the heat exchanger and is used for forming a main refrigerating cycle and an auxiliary refrigerating cycle, the refrigerating system comprises at least one expansion valve, the expansion valve is controlled, cold energy generated by the main refrigerating cycle can conduct secondary heat dissipation on a heat source with high heating value through the heat exchanger, and the auxiliary refrigerating cycle conducts heat dissipation on other heat sources. Further, the composite cooling system comprises a cold end inlet, a cold end outlet, a hot end inlet and a hot end outlet, wherein the cold end inlet is communicated with the cold end outlet, the hot end inlet is communicated with the hot end outlet and is not communicated with the cold end inlet and the cold end outlet, and A refrigeration system, comprising: the compressor is connected with the cold end outlet and used for compressing and driving the refrigerant to form a high-pressure high-temperature gaseous refrigerant; the heat radiating unit is connected with the outlet of the compressor and is used for condensing the high-pressure high-temperature gaseous refrigerant to form a high-pressure normal-temperature liquid refrigerant; The first expansion valve is connected with the outlet of the heat radiating unit and the cold end inlet and is used for reducing the pressure of the high-pressure normal-temperature liquid refrigerant into a low-pressure low Wen Yeqi mixed refrigerant, and the mixed refrigerant enters the heat exchanger through the cold end inlet to absorb heat and convert the heat into a low-pressure low-temperature gaseous refrigerant so as to radiate heat of a high-heat-generation heat source for the second time; the second expansion valve is connected to the outlet of the heat radiating unit and is used for reducing the pressure of the high-pressure normal-temperature liquid refrigerant into a low-pressure Wen Yeqi mixed refrigerant; and the air cooling unit is connected with the second expansion valve and is used for absorbing heat of the low-pressure low-Wen Yeqi mixed refrigerant and converting the low-pressure low-temperature gaseous refrigerant into low-pressure low-temperature gaseous refrigerant so as to dissipate heat of other heat sources. Furthermore, the invention provides a composite cooling system, wherein the refrigeration system comprises a first expansion valve, a first branch pipe, a second expansion valve, an air cooling unit, a second branch pipe, a compressor and a heat dissipation unit. The first expansion valve is connected to the cold end inlet. The first branch pipe is provided with a first pipe part, a second pipe part and a third pi