CN111595055A - Double-chip circulating liquid refrigerating system and refrigerating equipment - Google Patents
Double-chip circulating liquid refrigerating system and refrigerating equipment Download PDFInfo
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- CN111595055A CN111595055A CN201910130511.8A CN201910130511A CN111595055A CN 111595055 A CN111595055 A CN 111595055A CN 201910130511 A CN201910130511 A CN 201910130511A CN 111595055 A CN111595055 A CN 111595055A
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- 239000007788 liquid Substances 0.000 title claims abstract description 148
- 238000005057 refrigeration Methods 0.000 claims abstract description 105
- 239000004065 semiconductor Substances 0.000 claims abstract description 73
- 230000035622 drinking Effects 0.000 claims abstract description 55
- 238000003860 storage Methods 0.000 claims abstract description 37
- 238000001816 cooling Methods 0.000 claims abstract description 36
- 238000005086 pumping Methods 0.000 claims abstract description 21
- 230000009977 dual effect Effects 0.000 claims description 6
- 238000012546 transfer Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 235000020965 cold beverage Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 235000013361 beverage Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 235000015203 fruit juice Nutrition 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D31/00—Other cooling or freezing apparatus
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
- H05K7/20154—Heat dissipaters coupled to components
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20218—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures
- H05K7/20245—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant without phase change in electronic enclosures by natural convection; Thermosiphons
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2029—Modifications to facilitate cooling, ventilating, or heating using a liquid coolant with phase change in electronic enclosures
- H05K7/20336—Heat pipes, e.g. wicks or capillary pumps
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to the technical field of refrigeration, in particular to a double-chip circulating liquid refrigeration system and refrigeration equipment, wherein the system comprises a first semiconductor refrigeration chip, a second semiconductor refrigeration chip, a radiator, a liquid cooling heat exchange unit, a storage container and a pumping device; the hot end face of the first semiconductor refrigeration chip and the hot end face of the second semiconductor refrigeration chip are respectively contacted with the radiator; the cold end surfaces of the two are respectively contacted with the liquid cooling heat exchange unit; the liquid cooling heat exchange unit, the storage container and the pumping device are connected to form a closed circulating liquid path, a movement locus of drinking liquid formed in the circulating liquid path is suitable for guiding the heat convection movement of the drinking liquid, and the drinking liquid is suitable for forming local turbulence on the local part of the movement locus of the drinking liquid. The refrigerating system provided by the invention can effectively improve the refrigerating efficiency of the semiconductor chip, improve the refrigerating capacity of the semiconductor chip and realize uniform refrigerating temperature.
Description
Technical Field
The invention relates to the technical field of refrigeration, in particular to a double-chip circulating liquid refrigeration system and refrigeration equipment.
Background
Nowadays, the living standard of people is higher and higher, the requirement for the quality of life is higher and higher, and accordingly, drinking facilities in some families and public places (such as hospitals, stations and the like) are also more and more facilitated and improved. As for the existing drinking facilities, such as water dispensers, juice makers, beverage makers and the like, which can provide cold and hot drinking liquids according to the needs of users, it is common that the humanized drinking facilities are increasingly popular and widely used.
Most of the existing common drinking equipment adopts a semiconductor refrigeration mode to provide cold water, the refrigeration mode does not need any refrigerant, can continuously work, has no pollution source, does not have a rotating part, does not produce a rotation effect, does not have vibration and noise during working, has long service life and is easy to install. When a current passes through a thermocouple pair formed by connecting an N-type semiconductor material and a P-type semiconductor material, heat transfer can be generated between the two ends, and the heat can be transferred from one end to the other end, so that temperature difference is generated to form a cold end and a hot end. But the semiconductor itself presents a resistance that generates heat when current passes through the semiconductor, thereby affecting heat transfer. But the heat between the two plates is also transferred through the air and the semiconductor material itself in a reverse direction. When the cold end and the hot end reach a certain temperature difference and the heat transfer amounts of the two types are equal, a balance point is reached, and the positive heat transfer and the reverse heat transfer are mutually offset. The temperature of the cold and hot ends will not change continuously. In order to reach lower temperature, the temperature of the hot end can be reduced by adopting a heat dissipation mode and the like.
In the existing semiconductor refrigeration system, the hot end of the semiconductor refrigeration system adopts a traditional air-cooled radiator combining heat dissipation aluminum and a fan, and the cold end of the semiconductor refrigeration system is in direct contact with water in a water tank through small heat dissipation aluminum, so that the temperature of the water is gradually reduced. The heat exchange efficiency of the cold end and the hot end of the whole refrigerating system is very low, so that the refrigerating efficiency of the semiconductor chip is low.
Disclosure of Invention
The invention aims to overcome the problems of low refrigeration efficiency and unsatisfactory refrigeration effect of a semiconductor chip in the prior art, and provides a double-chip circulating liquid refrigeration system and refrigeration equipment. In addition, the double-semiconductor refrigeration chip is adopted, so that the refrigeration effect of the double-semiconductor refrigeration chip is better than that of a single semiconductor refrigeration chip.
In order to achieve the above object, a first aspect of the present invention provides a dual-chip circulating liquid refrigeration system, which includes a first semiconductor refrigeration chip, a second semiconductor refrigeration chip, a heat sink, a liquid-cooling heat exchange unit, a storage container, and a pumping device; the hot end face of the first semiconductor refrigeration chip and the hot end face of the second semiconductor refrigeration chip are respectively contacted with the radiator; the cold end surfaces of the two are respectively contacted with the liquid cooling heat exchange unit; the liquid cooling heat exchange unit, the storage container and the pumping device are connected to form a closed circulating liquid path, a movement locus of drinking liquid formed in the circulating liquid path is suitable for guiding the heat convection movement of the drinking liquid, and the drinking liquid is suitable for forming local turbulence on the local part of the movement locus of the drinking liquid.
Preferably, a first cold energy conduction part is formed on one side of the shell of the liquid cooling heat exchange unit, which is in contact with the cold end of the first semiconductor refrigeration chip; and a second cold energy conduction part is formed on one side of the shell of the liquid cooling heat exchange unit, which is contacted with the cold end of the second semiconductor refrigeration chip.
Preferably, the first cold energy conduction part and the second cold energy conduction part are provided with shell inner protrusions for forming the local turbulence.
Preferably, the housing interior protrusion is adapted to form a circuitous path for the flow of the potable liquid to increase the length of the liquid path through the liquid-cooled heat exchange unit.
Preferably, the liquid cooling heat exchange unit is provided with a concave portion at the outside thereof, the concave portion being suitable for the cold end of the first semiconductor chip and the cold end of the second semiconductor chip to be placed, and the first cold energy conduction portion and the second cold energy conduction portion are located on the back of the concave portion.
Preferably, an arc-shaped baffle plate is arranged at an inlet of the shell of the liquid cooling heat exchange unit, the arc-shaped baffle plate is protruded towards the position close to the inlet, and a plurality of shunting holes are formed in the arc-shaped baffle plate.
Preferably, the pumping device is installed at the liquid inlet or the liquid outlet of the liquid cooling heat exchange unit, and is formed into an integrated module with the liquid cooling heat exchange unit.
Preferably, the outlet of the storage container is located at a lower portion thereof and the inlet is located at an upper portion thereof, the drinking liquid forming said local turbulence by liquid impact generated by a height difference between said inlet and outlet.
Preferably, the radiator is an air-cooled radiator, a water-cooled radiator or a heat pipe radiator.
In a second aspect, the invention provides a refrigeration apparatus comprising a dual-chip circulating liquid refrigeration system according to any one of the first aspect of the invention.
Through the technical scheme, the cold ends of the chips in the double-chip circulating liquid refrigerating system are directly contacted with the cold energy conduction part, the drinking liquid to be cooled continuously moves and is contacted with the cold energy conduction part through the arrangement of the pumping device and the arrangement of the inlet and outlet positions of the storage container, and meanwhile, local turbulence is artificially formed on the movement tracks of the drinking liquid in the storage container, the first cold energy conduction part and the second cold energy conduction part respectively to strengthen the heat convection movement of the drinking liquid, so that the refrigerating efficiency is improved, and the temperature of the drinking liquid is uniform. Tests prove that the forced convection heat transfer coefficient of the drinking liquid in the double-chip circulating liquid refrigeration system reaches 1000-plus-energy 15000W/(m)2DEG C.), the refrigeration efficiency is obviously improved, the refrigeration is rapid, and the storage container is internally provided withThe temperature of the drinking liquid is kept uniform, the phenomena of low bottom temperature and high top temperature can not be generated, and the use experience of a user is effectively improved. The double-chip circulating liquid refrigerating system is simple and practical to operate, relatively low in cost and capable of being widely applied to drinking equipment such as water dispensers, cold drink machines, juice makers and the like. In the double-chip circulating liquid refrigeration system, the pumping devices are arranged at the liquid inlet and the liquid outlet of the liquid cooling heat exchange unit to form modules, so that the space occupied by the refrigeration system can be effectively saved, and the miniaturization of used equipment is facilitated.
Further advantages of the present invention, as well as the technical effects of preferred embodiments, are further described in the following detailed description.
Drawings
The following drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the scope of the invention. In the drawings:
FIG. 1 is a schematic diagram of an air-cooled heat rejection dual-chip circulating liquid refrigeration system in accordance with one embodiment of the present invention;
FIG. 2 is a schematic diagram of a liquid cooling system with water cooling and heat dissipation and dual-chip circulation according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a heat pipe heat rejection dual chip circulating liquid refrigeration system in accordance with one embodiment of the present invention;
FIG. 4 is a schematic longitudinal cross-sectional view of a liquid-cooled heat exchange unit in accordance with an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a liquid-cooled heat exchange unit in accordance with one embodiment of the present invention.
Description of the reference numerals
1 semiconductor refrigeration chip
11 first semiconductor refrigeration chip 12 second semiconductor refrigeration chip
a hot end and b cold end
2 radiator
21 radiator 22 cooling air driving device
23 heat absorption liquid mist spreading device 24 cooling water tank
25 water pump 26 heat pipe unit
3 liquid cooling heat exchange unit
31 convex 32 concave part
33 arc baffle 34 diversion hole
35 liquid inlet and 36 liquid outlet
4 storage container
41 outlet and 42 inlet
5 Pumping device
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
It should be noted that, in the following description, for clarity of explanation of the technical solution of the present invention, directional terms such as "external" and "internal" are used according to the normal directions of the components in the dual-chip circulating liquid refrigeration system, for example, a portion through which the liquid passes is internal, and a portion opposite to the portion is external.
Furthermore, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, and therefore the features defined "first", "second" may explicitly or implicitly include one or more of the features described.
In the description of the present invention, it should be noted that, unless otherwise explicitly stated or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either directly or indirectly through intervening media, either internally or in any combination thereof. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
One embodiment of the present invention provides a dual-chip circulating liquid refrigeration system, as shown in fig. 1 to 3, including a first semiconductor refrigeration chip 11, a second semiconductor refrigeration chip 12, a heat sink 2, a liquid-cooled heat exchange unit 3, a storage container 4 and a pumping device 5; the hot end a end face of the first semiconductor refrigeration chip 11 and the hot end a end face of the second semiconductor refrigeration chip 12 are respectively contacted with the radiator 3; the cold ends b of the two are respectively contacted with the liquid cooling heat exchange unit 3; the liquid cooling heat exchange unit 3, the storage container 4 and the pumping device 5 are connected to form a closed circulating liquid path, the movement locus of the drinking liquid formed in the circulating liquid path is suitable for guiding the heat convection movement of the drinking liquid, and the drinking liquid is suitable for forming local turbulence at the local part of the movement locus of the drinking liquid.
The double-chip circulating liquid refrigeration system provided by the embodiment of the invention can be applied to various electrical appliances and equipment which need to be cooled, such as drinking machines, cold coolers, juice makers and other drinking supply equipment, and can also be applied to constant temperature equipment suitable for experiments under the condition lower than room temperature. When the refrigeration system provided by the invention works, when direct current is introduced into the semiconductor refrigeration chip 1, due to the special structure and performance of the semiconductor refrigeration chip 1, heat at one end of the chip can be rapidly transferred to the other end, so that the temperature at one end of the semiconductor refrigeration chip 1 rises, the temperature at the other end drops, the end with the rising temperature is called a hot end a, and the end with the dropping temperature is called a cold end b. In mechanical equipment, electrical equipment and instrument equipment, a semiconductor refrigeration chip 1 is often used, and the performance that a hot end a can transmit a large amount of heat and a cold end b can absorb a large amount of heat is utilized. In the working process of the semiconductor refrigeration chip 1, the heat production performance of the hot end a and the refrigeration performance of the cold end b of the semiconductor refrigeration chip can be influenced by the self-production material and structure of the semiconductor refrigeration chip 1 and the temperature difference between the two ends of the hot end a and the cold end b of the semiconductor refrigeration chip, and when the temperature difference between the two ends is too high, the heat production performance and the refrigeration performance of the semiconductor refrigeration chip 1 can be greatly reduced, so that the heat production effect and the refrigeration effect of the semiconductor refrigeration chip are influenced. Therefore, under the condition that the semiconductor refrigeration chip 1 is not changed, the temperature difference between the hot end a and the cold end b of the semiconductor refrigeration chip is reduced, and the heat production effect and the refrigeration effect of the semiconductor refrigeration chip can be improved. The invention arranges the liquid cooling heat exchange unit 3 connected in the circulating liquid path at the cold ends b of the two semiconductor refrigeration chips 1, and arranges two forced turbulences in the liquid cooling heat exchange unit 3, so that the heat exchange effect of the liquid cooling heat exchange unit 3 at the cold ends b of the semiconductor refrigeration chips 1 is better.
Specifically, for example, the inlet 42 of the storage container 4 is located at the upper part of the storage container 4, and the outlet 41 is located at the lower part of the storage container 4, so that the liquid in the storage container 4 can form turbulent flow due to the height difference, the liquid with lower temperature at the position of the inlet 42 can be rapidly mixed with the liquid with higher temperature in the storage container 4 due to the turbulent flow, the overall temperature of the liquid in the storage container 4 is rapidly reduced, the temperature of the liquid in the whole container is more uniform, and the phenomena that the temperature of the upper part of the liquid in the storage container 4 is lower and the temperature of the lower part of the liquid in the storage container 4 is higher can not occur. Meanwhile, in the refrigeration working process, the drinking liquid is pumped out from the outlet of the storage container 4 by the pumping of the pumping device 5 and is sent to the liquid-cooled heat exchange unit 3 through the upper connecting liquid path, one side surface of the liquid-cooled heat exchange unit 3 is used as a heat absorption surface to be in direct contact with the cold end b of the first semiconductor refrigeration chip 11 and the cold end b of the second semiconductor refrigeration chip 12, the drinking liquid passing through the inner cavity of the liquid-cooled heat exchange unit 3 is in direct contact with the heat absorption surface of the liquid-cooled heat exchange unit 3, the heat of the drinking liquid is absorbed by the heat absorption surface, the drinking liquid is pumped out of the liquid-cooled heat exchange unit 3 by the pumping device 5 and enters the upper part in the storage container. The drinking liquid in the lower part of the storage container 4 is continuously pumped out, and the drinking liquid which is cooled most recently in the upper part of the storage container 4 is continuously filled in, and the circulation is continuously carried out, so that the forced circulation movement of the drinking liquid is formed. Since the drinking liquid in the lower part of the storage container 4 is continuously pumped out, the drinking liquid in the storage container 4 needs to be continuously filled in the lower part, so that the liquid in the storage container 4 integrally has a tendency of continuously moving from top to bottom, and the movement is different from a natural heat convection movement track, namely a forced heat convection movement which is designed and relatively accurately controls the movement track of the liquid.
In one embodiment of the present invention, as shown in fig. 4 to 5, a first cold energy conducting portion is formed on a side of the shell of the liquid-cooled heat exchange unit 3 contacting with the cold end b of the first semiconductor refrigeration chip 11; and a second cold energy conduction part is formed at one side of the shell of the liquid cooling heat exchange unit 3, which is contacted with the cold end b of the second semiconductor refrigeration chip 12. The first cold energy conduction part and the second cold energy conduction part are communicated with each other, and specifically, the first cold energy conduction part and the second cold energy conduction part are provided with shell inner protrusions 31 for forming the local turbulence. Further, the housing inner protrusion 31 is adapted to form a circuitous path for the flow of the drinking liquid to increase the liquid path length through the liquid-cooled heat exchange unit 3. In a preferred embodiment of the present invention, the liquid-cooled heat exchange unit 3 is externally provided with a concave portion 32 suitable for placing the cold end b of the first semiconductor chip 11 and the cold end b of the second semiconductor chip 12, the concave portion 32 may be a large concave portion 32 or two small concave portions 32, and the first cold energy conducting portion and the second cold energy conducting portion are located on the back of the concave portion 32, so as to increase the contact area between the cold end a of the semiconductor chip 1 and the turbulent liquid, thereby improving the refrigeration effect thereof. More preferably, the inside inlet 35 department of liquid cooling heat transfer unit 3's casing is equipped with cowl 33, cowl 33's arc is towards being close to inlet 35 department arch, cowl 33 is last to be equipped with a plurality of reposition of redundant personnel holes 34, makes things convenient for the liquid stream evenly distributed to inside liquid cooling heat transfer unit 3, make the heat transfer effect better.
The pumping means 5 may be installed at the inlet 42 of the storage vessel 4 and at the outlet 41 of the storage vessel 4, and may also be installed on the pipe between the storage vessel 4 and the liquid-cooled heat exchange unit 3. However, as a preferred embodiment of the present invention, the pumping device 5 is installed at the liquid inlet 35 or the liquid outlet 36 of the liquid-cooled heat exchange unit 3, and is formed as an integrated module with the liquid-cooled heat exchange unit 3, so that the volume of the refrigeration system can be reduced, and the refrigeration system can be more conveniently applied to miniaturized refrigeration equipment. Meanwhile, the outside of the storage container 4 and the pipeline connecting the parts can be provided with heat insulation layers, so that the liquid in the whole circulating liquid path can be ensured to keep a specific temperature.
In the invention, the radiator 2 can be an air-cooled radiator, a water-cooled radiator or a heat pipe radiator, and can also be other radiators 2.
In one embodiment of the present invention, as shown in fig. 1, the air-cooled heat sink includes a heat sink 21, and a cooling air path is formed inside the air-cooled heat sink. Preferably, the air-cooled radiator further includes a cooling wind driving device 22, and the cooling wind driving device 22 is used for cooling the heat sink 21.
In an embodiment of the present invention, as shown in fig. 2, the water-cooled heat exchanger may directly contact the semiconductor refrigeration chip through a cooling water tank 24, the water-cooled heat sink includes a heat sink 21, a water pump 25 and a cooling water tank 24, the cooling water tank 24 is respectively in contact with the hot end a of the first semiconductor refrigeration chip 11 and the hot end a of the second semiconductor refrigeration chip 12, and the cooling water tank 24, the heat sink 21 and the water pump 25 are connected by water paths to form a cooling water circulation system.
In one embodiment of the present invention, as shown in fig. 3, the heat-pipe radiator includes a heat-pipe unit 26, a heat-dissipating member 21 and a cooling wind-driving device 22, the heat-pipe unit 26 of the present invention may be in various heat-pipe heat-dissipating forms,
in one embodiment of the invention, the pumping means 5 may be any pump that facilitates the transfer of liquid, preferably a centrifugal pump, a vane pump or a rotary pump.
In addition, the embodiment of the invention also provides a refrigerating device which is provided with the double-chip circulating semiconductor refrigerating system.
The cold end a of the chip of the double-chip circulating semiconductor refrigeration system provided by the embodiment of the invention is directly contacted with the cold energy conduction part, and the drinking liquid to be cooled continuously moves and is contacted with the cold energy conduction part through the arrangement of the pumping device 5 and the arrangement of the inlet and outlet positions of the storage container 4Meanwhile, the movement track of the drinking liquid is relatively accurately controlled, so that the movement of the drinking liquid is conformed and the heat convection movement of the drinking liquid is strengthened, local turbulence is artificially formed on the movement tracks of the drinking liquid in the storage container 4, the first cold energy conduction part and the second cold energy conduction part respectively to strengthen the heat convection movement of the drinking liquid, cold energy diffusion and drinking liquid mixing are strengthened, the refrigeration efficiency is improved, and the temperature of the drinking liquid is uniform. Tests prove that the double-chip circulating semiconductor refrigeration system forms and promotes the forced convection heat transfer of the liquid by controlling the drinking liquid in different areas in the storage container 4 to continuously move and contact with the cold energy conduction part, thereby effectively improving the refrigeration efficiency, rapidly reducing the temperature of the drinking liquid, and leading the forced convection heat transfer coefficient of the drinking liquid to reach 1000-plus-one 15000W/(m & ltSUB & gt & gtW/(m & ltSUB & gt)2The temperature is 200 ℃ relative to the heat transfer coefficient of natural convection of liquid and 1000W/(m)2The temperature of the drinking liquid in the storage container 4 is kept uniform, the phenomena of low bottom temperature and high top temperature can not be generated, and the use experience of a user is effectively improved. The double-chip circulating semiconductor refrigeration system provided by the embodiment of the invention is simple and practical to operate, relatively low in cost and capable of being widely applied to drinking equipment such as a water dispenser, a cold drink machine and a fruit juice machine. In the double-chip circulating semiconductor refrigeration system provided by the embodiment of the invention, the pumping devices are arranged at the liquid inlet and the liquid outlet of the liquid cooling heat exchange unit to form modules, so that the space occupied by the refrigeration system can be effectively saved, and the miniaturization of used equipment is facilitated.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A double-chip circulating liquid refrigeration system is characterized by comprising a first semiconductor refrigeration chip (11), a second semiconductor refrigeration chip (12), a radiator (2), a liquid cooling heat exchange unit (3), a storage container (4) and a pumping device (5);
the end face of the hot end (a) of the first semiconductor refrigeration chip (11) and the end face of the hot end (a) of the second semiconductor refrigeration chip (12) are respectively contacted with the radiator (3); the end surfaces of the cold ends (b) of the two are respectively contacted with the liquid cooling heat exchange unit (3);
the liquid cooling heat exchange unit (3), the storage container (4) and the pumping device (5) are connected to form a closed circulating liquid path, a drinking liquid motion track formed in the circulating liquid path is suitable for guiding the heat convection motion of the drinking liquid, and the drinking liquid is suitable for forming local turbulence on the local part of the drinking liquid motion track.
2. The dual-chip circulating liquid refrigeration system as claimed in claim 1, wherein the side of the shell of the liquid-cooled heat exchange unit (3) contacting the cold end (b) of the first semiconductor refrigeration chip (11) forms a first cold energy conduction part; and a second cold energy conduction part is formed at one side of the shell of the liquid cooling heat exchange unit (3) contacted with the cold end (b) of the second semiconductor refrigeration chip (12).
3. The dual chip circulating liquid refrigeration system as claimed in claim 2 wherein the first and second cold energy conducting portions are provided with shell interior protrusions (31) for creating the localized turbulence.
4. The dual chip circulating liquid refrigeration system of claim 3 wherein said housing internal protrusion (31) is adapted to form a circuitous path for said potable liquid flow to increase the liquid path length through said liquid cooled heat exchange unit (3).
5. The dual-chip circulating liquid refrigeration system as claimed in claim 2, wherein the exterior of the liquid-cooled heat exchange unit (3) is provided with a recess (32) adapted to be placed at the cold end (b) of the first semiconductor chip (11) and the cold end (b) of the second semiconductor chip (12), and the first cold energy conduction portion and the second cold energy conduction portion are located at the back of the recess (32).
6. The dual-chip circulating liquid refrigeration system according to claim 1, wherein an arc-shaped baffle (33) is disposed at a liquid inlet (35) inside the shell of the liquid-cooling heat exchange unit (3), an arc-shaped surface of the arc-shaped baffle (33) protrudes toward the liquid inlet (35), and a plurality of branch holes (34) are disposed on the arc-shaped baffle (33).
7. The dual chip circulating liquid refrigeration system as claimed in claim 1, wherein the pumping means (5) is installed at an inlet (35) or an outlet (36) of the liquid-cooled heat exchange unit (3) and is formed as an integrated module with the liquid-cooled heat exchange unit (3).
8. A dual chip circulating liquid refrigeration system as claimed in claim 1 wherein the outlet (41) of the storage vessel (4) is located in its lower portion and the inlet (42) is located in its upper portion, the drinking liquid creating said local turbulence by liquid impact created by the difference in height between the inlet (42) and the outlet (41).
9. The dual chip circulating liquid refrigeration system according to any one of claims 1 to 8 wherein the heat sink (2) is an air-cooled heat sink, a water-cooled heat sink or a heat pipe heat sink.
10. A refrigeration apparatus comprising a dual-chip circulating liquid refrigeration system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130511.8A CN111595055A (en) | 2019-02-21 | 2019-02-21 | Double-chip circulating liquid refrigerating system and refrigerating equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910130511.8A CN111595055A (en) | 2019-02-21 | 2019-02-21 | Double-chip circulating liquid refrigerating system and refrigerating equipment |
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| CN111595055A true CN111595055A (en) | 2020-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910130511.8A Pending CN111595055A (en) | 2019-02-21 | 2019-02-21 | Double-chip circulating liquid refrigerating system and refrigerating equipment |
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Cited By (1)
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|---|---|---|---|---|
| CN114698338A (en) * | 2022-03-23 | 2022-07-01 | 西北大学 | Passive self-circulation phase change heat dissipation system in space environment and working method thereof |
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