CN111065244B - Refrigerating equipment with local cooling function and local refrigerating method - Google Patents

Refrigerating equipment with local cooling function and local refrigerating method Download PDF

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Publication number
CN111065244B
CN111065244B CN201911366761.8A CN201911366761A CN111065244B CN 111065244 B CN111065244 B CN 111065244B CN 201911366761 A CN201911366761 A CN 201911366761A CN 111065244 B CN111065244 B CN 111065244B
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China
Prior art keywords
cooling
refrigerant
local
expansion valve
condenser
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Application number
CN201911366761.8A
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Chinese (zh)
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CN111065244A (en
Inventor
罗家豪
钟锦科
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Guangdong Baiao Electric Co ltd
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Guangdong Baiao Electric Co ltd
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    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20309Evaporators
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20318Condensers
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20327Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20354Refrigerating circuit comprising a compressor
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/20Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2029Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
    • H05K7/20381Thermal management, e.g. evaporation control
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The invention discloses refrigeration equipment with a local cooling function and a local refrigeration method, wherein the refrigeration equipment comprises a compressor, a condenser and an evaporator which are connected through pipelines, the evaporator comprises a plurality of cooling mechanisms, the cooling mechanisms comprise cooling plates and refrigerant channels which are fixed on the back parts of the cooling plates, the inlets of the refrigerant channels are communicated with the condenser through pipelines, and the outlets of the refrigerant channels are communicated with the compressor through pipelines. The cooling mechanism provided by the invention can realize the local cooling of the electronic components, meets the requirements of different electronic components on temperature, has higher heat exchange efficiency than the traditional cooling system due to the direct heat exchange, and has the advantages of higher efficiency, higher cooling speed, more obvious cooling effect, more pertinence, avoiding the generation of useless cold and improving the energy efficiency of the cooling device.

Description

Refrigerating equipment with local cooling function and local refrigerating method
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to refrigeration equipment with a local cooling function and a local refrigeration method.
Background
In recent years, the development of the electronic technology industry is particularly rapid, and the electronic technology is not separated from the fields of calculation, communication and scientific research; the carrier of the electronic technology and the electronic components are also widely applied along with the development of the electronic technology, and the required functions are more and more powerful; the electronic components are operated more and more efficiently in the equipment, and more heat is generated by high-speed operation, so that the electronic components are easy to damage, and the electronic components are required to be cooled; the existing equipment for cooling the components is deficient in functions and low in efficiency, and the traditional refrigerating device such as air cooling and water cooling is usually used, so that the refrigerating effect is relatively common, and the cooling requirement of the increasingly developed heating electric appliance components is not met; moreover, the cooling forms of the traditional element cooling equipment are generally as follows: the cooling efficiency is low, the benefit is low, the cooling cannot be directly performed, and the energy consumption is high; in addition, with the development of electronic components, the types of components are also more and more varied, and the requirements of each component on cooling are different, so that an adjustable cooling device is particularly needed, and a refrigeration device with a local cooling function is provided for the electronic components which generate heat due to high-speed operation. It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide a refrigeration device with a local cooling function and a local cooling method, and aims to solve the defect that the refrigeration device in the prior art can only cool the whole body and cannot cool electronic components locally.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a refrigeration plant with local cooling function, refrigeration plant includes compressor, condenser and the evaporimeter through the pipeline connection, wherein, the evaporimeter includes a plurality of cooling mechanism, cooling mechanism includes the cooling plate and fixes the refrigerant passageway at the cooling plate back, the entry of refrigerant passageway passes through the pipeline intercommunication condenser, and the export passes through the pipeline intercommunication compressor.
In the refrigeration equipment with the local cooling function, the refrigerant channel is in a spiral shape, the inlet is arranged on the side surface of the outermost layer of the channel, and the outlet is arranged at the center position of the innermost layer of the channel.
In the refrigeration equipment with the local cooling function, a drying filter is further arranged between the condenser and the cooling mechanism.
In the refrigeration equipment with the local cooling function, an electronic expansion valve is further arranged between the drying filter and the cooling mechanism, and the electronic expansion valve comprises a total electronic expansion valve and a sub-electronic expansion valve.
In the refrigeration equipment with the local cooling function, a capillary tube and a throttle tube are further arranged between the electronic expansion valve and the cooling mechanism in sequence.
In the refrigeration equipment with the local cooling function, the telescopic heat-preservation long connecting pipe is coated outside the throttle pipe.
In the refrigeration equipment with the local cooling function, the expansion range of the heat preservation long connecting pipe is 0.2-2 m.
A partial cooling method employing a cooling apparatus having a partial cooling function as described above, wherein the method comprises the steps of: the power supply of the refrigeration equipment is connected, the length of the heat-preserving long connecting pipe is firstly adjusted, the cooling mechanism is closely placed at the position of the heating electronic component, the switch is turned on, the refrigeration equipment starts to start, the compressor compresses the refrigerant, saturated refrigerant steam is discharged to the condenser, the refrigerant steam is condensed into saturated liquid, then the saturated liquid is dried and filtered through the drying filter, the opening degree of the electronic expansion valve is adjusted, the saturated liquid is throttled through the capillary 5 and then enters the cooling mechanism, the heat of the heating electronic component is absorbed through the cooling plate, the refrigerant is vaporized in the refrigerant channel, and then returns to the compressor through the pipeline, and the task of cooling the heating electronic component is completed.
The beneficial effects are that:
the invention provides refrigeration equipment with a local cooling function and a local refrigeration method. Compared with the prior art, the method has the following beneficial effects:
(1) The spiral refrigerant flow passage arranged in the cooling mechanism can prolong the flow route of the refrigerant in a smaller volume, so that the refrigerant flows in the passage to evaporate and absorb heat, the heat exchange function is fully exerted, and the refrigerating effect is improved;
(2) The cooling plate has the function of concentrating the cold energy of the refrigerant channel, and the cooling plate is used for directly contacting and exchanging heat to the heating element arranged on the cooling plate, so that the local cooling of the refrigeration equipment can be realized;
(3) The electronic expansion valve can adjust the flow of the liquid inlet amount of the refrigerant by adjusting the opening degree, thereby controlling the evaporation liquid level and adjusting the evaporation temperature at the tail end, and finally achieving the purpose of adjusting the refrigerating capacity of the local cooling equipment, so as to meet the different requirements of each element on cooling;
(4) The heat-preservation long connecting pipe has elasticity and adjustable length, and the length of the heat-preservation long connecting pipe can be adjusted according to the electronic component to be refrigerated, so that the cooling mechanism has a larger moving range, can be abutted against electronic components, has a better cooling effect, breaks through the low activity of the traditional refrigerating system, is more free and convenient for users to use, and accords with the trend of the modern market.
Drawings
Fig. 1 is a schematic diagram of a refrigeration cycle of a refrigeration device with a local cooling function according to the present invention;
fig. 2 is a schematic structural diagram of a refrigeration device with a local cooling function according to the present invention;
fig. 3 is a schematic view of the internal structure of the cooling mechanism assembly and the refrigerant flow direction.
The reference numerals are as follows: 1. a compressor; 2. a condenser; 3. a fan; 4. an evaporator; 5. a cooling mechanism; 6. a cooling plate; 7. a refrigerant passage; 8. an electronic component; 9. a refrigerant channel separator; 10. a bottom plate; 11. an inlet; 12. an outlet; 13. drying the filter; 14. an electronic expansion valve; 15. a capillary tube; 16. a throttle tube; 17. and (5) a heat-insulating long connecting pipe.
Detailed Description
The invention provides a refrigeration device with a local cooling function and a local refrigeration method, and aims to make the purposes, technical schemes and effects of the invention clearer and more definite. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1 and 2, the present invention provides a refrigeration device with a local cooling function, the refrigeration device includes a compressor 1, a condenser 2, an evaporator 4, and a fan 3 for heat exchange of the condenser, the evaporator 4 includes a plurality of cooling mechanisms 5, the cooling mechanisms 5 include a cooling plate 6 and a refrigerant channel 7 fixed at the back of the cooling plate, the cooling plate 6 is used for placing electronic components 8 to be cooled, providing a concentrated heat exchange function, an inlet 11 of the refrigerant channel 7 is connected with the condenser 2 through a pipeline, an outlet 12 is connected with the compressor 1 through a pipeline, and is used for heat exchange circulation of a refrigerant, so as to implement cooling treatment of the electronic components 8. During operation, the electronic components 8 can be directly placed on the cooling plate 6, and the single cooling mechanism 5 can be closely placed at the position of the electronic components 8 to be cooled, and heat exchange is directly carried out between the cooling plate 6 and the electronic components 8, so that the electronic components can be cooled locally and rapidly. The cooling mechanism may be one or a plurality of cooling mechanisms connected in parallel, and the cooling mechanism is arranged according to specific requirements.
The refrigeration equipment with the structure can realize the local refrigeration cooling of the electronic components 8 by arranging the cooling mechanism, thereby meeting the requirements of different electronic components 8 on different temperatures, and the cooling plate 6 and the heating electronic components directly exchange heat without other carriers, thereby having obvious cooling effect, the local cooling minimum temperature can reach the range of minus 30 to minus 50 ℃, and the refrigeration equipment has the characteristics of durable cooling time and accurate cooling fixed point.
As shown in fig. 3, in the above-mentioned refrigeration apparatus with a local cooling function, the refrigerant channel 7 is spiral, the inlet 11 is disposed on the side surface of the outermost layer of the channel, and the outlet 12 is disposed at the center of the innermost layer of the channel. Specifically, the cooling mechanism includes cooling plate 6, refrigerant passageway baffle 9 and bottom plate 10 that set gradually, refrigerant passageway baffle 9 is heliciform structure, presss from both sides between cooling plate 6 and bottom plate 10, forms heliciform refrigerant passageway 7 to be equipped with entry 11 on the outer lane side of refrigerant passageway baffle 9, entry 11 passes through pipeline intercommunication condenser 2 for the import of refrigerant, central point on the bottom plate 10 is put and is equipped with export 12, the export passes through pipeline intercommunication compressor 1 for export the refrigerant after gasifying to compressor 1. In operation, refrigerant enters through the inlet 11, flows along the spiral refrigerant channel 7, and then flows out through the central outlet 12. The spiral refrigerant channel forms a refrigerant passage which enters from the periphery and flows out from the center, and in a smaller volume, the flow path of the refrigerant is prolonged, so that the refrigerant fully plays a role in heat exchange in the process of flowing through the passage, and the refrigerating effect is improved. The cooling plate 6, the refrigerant channel separator 9, and the bottom plate 10 are made of metal materials with good heat conduction effect, so that the cooling mechanism 5 has good heat exchange effect. The cooling plate 6 and the bottom plate 10 are tightly welded to the refrigerant passage partition 9, and the refrigerant passage is closed, so that the refrigerant can circulate only through the inlet 11 and the outlet 12.
As shown in fig. 2 and 3, in particular, in the refrigeration apparatus with a local cooling function, a dry filter 13 is further disposed between the condenser 2 and the cooling mechanism 5. Since the refrigerant exiting from the condenser 2 has a certain moisture, the dry filter 13 is provided to remove the moisture therein, thereby preventing the moisture from agglomerating and blocking the subsequent piping.
As shown in fig. 1 and 2, in particular, in the refrigeration device with a local cooling function, an electronic expansion valve 14 is further disposed between the drying filter 13 and the cooling mechanism 5, and the electronic expansion valve 14 includes a total electronic expansion valve and a sub-electronic expansion valve. The electronic expansion valve 14 is used for adjusting the opening of the flow of the refrigerant, and can adjust the flow of the refrigerant according to the requirement of the heating element on the refrigerating effect, thereby preventing the equipment from consuming energy in the refrigerating process. The total electronic expansion valve can adjust the flow of the total condensing agent, and the branch electronic expansion valves can control the flow of the branch cooling valves, so that the refrigerating effect of each cooling mechanism can be accurately controlled.
As shown in fig. 1 and 2, in particular, in the refrigeration apparatus with a local cooling function, a capillary tube 15 and a throttle tube 16 are further disposed between the electronic expansion valve 14 and the cooling mechanism 5 in this order. The capillary 15 has the throttling function, and can homogenize condensing agent to stabilize condensing effect; the throttle pipe 16 is mainly used for connecting a cooling mechanism, through which a coolant is fed into the cooling mechanism, and through which the heat-exchanged coolant is fed into the compressor.
As shown in fig. 2, the throttle pipe is preferably covered with a telescopic insulation long connecting pipe 17. The outer cladding of the long connecting pipe 17 keeps warm has insulation material, can have thermal-insulated effect to the throttle pipe 16 that the inside set up to avoid refrigerant to carry out heat exchange with the external world in the transmission process, importantly, the long connecting pipe 17 keeps warm has telescopic characteristic, can freely stretch out and draw back in a certain extent, can make cooling body 5 remove in a certain extent, and the pertinence is placed in the electronic components department that wants the local cooling, thereby broken the low mobility in traditional refrigerating system space, the user is more free convenient when using, lets cooling body can remove along with the user's requirement, satisfies the demand of local refrigeration. Further, the length of the heat-insulating long connecting pipe 17 can be customized according to the requirements of users, and the free expansion range of the heat-insulating long connecting pipe is generally set to be 0.2-2 m, so that the heat-insulating long connecting pipe has better use flexibility, can ensure less heat loss, and ensures the refrigerating effect of the refrigerant.
A partial refrigeration method employing a refrigeration apparatus having a partial cooling function as described above, the method comprising the steps of: the power supply of the refrigeration equipment is turned on, the cooling mechanism 5 is placed at the position close to the heating electronic component 8 by adjusting the length of the heat-preserving long connecting pipe 17, or the heating electronic component 8 is placed on the cooling plate 6, the switch is turned on, the refrigeration equipment starts to operate, the refrigerant is compressed, saturated refrigerant vapor is discharged to the condenser 2, the refrigerant vapor is condensed into saturated liquid under the action of the fan, the saturated liquid is then dried and filtered by the drying filter 13, the opening of the total electronic expansion valve 14 is adjusted, the saturated liquid is split into all the electronic expansion valves, the opening of the electronic expansion valves 14 is adjusted, the capillary 15 is entered, the refrigerant is vaporized in the refrigerant channel 7 by the throttle pipe 16 after the capillary 15 is throttled, the heat of the heating component is absorbed by the cooling plate, and then the refrigerant returns to the compressor 1 by the throttle pipe, and the task of cooling the heating component is completed.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.

Claims (3)

1. The refrigerating equipment with the local cooling function comprises a compressor, a condenser and an evaporator which are connected through pipelines, and is characterized in that the evaporator comprises a plurality of cooling mechanisms which are connected in parallel, each cooling mechanism comprises a cooling plate and a refrigerant channel which is fixed on the back of the cooling plate, an inlet of each refrigerant channel is communicated with the condenser through a pipeline, and an outlet of each refrigerant channel is communicated with the compressor through a pipeline; the refrigerant channel is spiral, the inlet is arranged on the side surface of the outermost layer of the channel, and the outlet is arranged at the center of the innermost layer of the channel; a drying filter is also arranged between the condenser and the cooling mechanism; an electronic expansion valve is further arranged between the drying filter and the cooling mechanism, and a capillary tube and a throttle tube are further arranged between the electronic expansion valve and the cooling mechanism in sequence; the telescopic heat-preserving long connecting pipe is coated outside the throttle pipe, and the telescopic range of the heat-preserving long connecting pipe is 0.2-2 m.
2. The refrigeration unit with localized cooling function of claim 1 wherein the electronic expansion valve comprises a total electronic expansion valve and a split electronic expansion valve.
3. A partial cooling method using the refrigeration apparatus having a partial cooling function according to claim 1 or 2, characterized by comprising the steps of: the power supply of the refrigeration equipment is connected, the length of the heat-preserving long connecting pipe is firstly adjusted, the cooling mechanism is closely placed at the position of the heating electronic component, the switch is turned on, the refrigeration equipment starts to start, the compressor compresses the refrigerant, saturated refrigerant steam is discharged to the condenser, the refrigerant steam is condensed into saturated liquid, then the saturated liquid is dried and filtered through the drying filter, the opening degree of the electronic expansion valve is adjusted, the saturated liquid enters the cooling mechanism after being throttled by the capillary tube, the heat of the heating electronic component is absorbed through the cooling plate, the refrigerant is vaporized in the refrigerant channel, and then returns to the compressor through the pipeline, and the task of cooling the heating electronic component is completed.
CN201911366761.8A 2019-12-26 2019-12-26 Refrigerating equipment with local cooling function and local refrigerating method Active CN111065244B (en)

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CN111065244B true CN111065244B (en) 2024-01-12

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117329722A (en) * 2023-11-07 2024-01-02 东莞市俊志制冷设备有限公司 Refrigeration plant with local cooling function

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1144462A (en) * 1997-05-30 1999-02-16 Tabai Espec Corp Refrigerating circuit equipped with heat exchanger unit for controlling refrigerating capacity
CN102655130A (en) * 2012-05-04 2012-09-05 孙正军 Compressor type chip temperature reducing system
CN105299938A (en) * 2015-11-06 2016-02-03 中国电子科技集团公司第二十九研究所 Small-sized compression refrigerating system based on micro-channel heat exchanger
CN211831610U (en) * 2019-12-26 2020-10-30 广东百奥电气有限公司 Refrigeration equipment with local cooling function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1144462A (en) * 1997-05-30 1999-02-16 Tabai Espec Corp Refrigerating circuit equipped with heat exchanger unit for controlling refrigerating capacity
CN102655130A (en) * 2012-05-04 2012-09-05 孙正军 Compressor type chip temperature reducing system
CN105299938A (en) * 2015-11-06 2016-02-03 中国电子科技集团公司第二十九研究所 Small-sized compression refrigerating system based on micro-channel heat exchanger
CN211831610U (en) * 2019-12-26 2020-10-30 广东百奥电气有限公司 Refrigeration equipment with local cooling function

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