CN117663616A - Independent temperature control three-temperature-zone refrigeration equipment with single evaporator - Google Patents
Independent temperature control three-temperature-zone refrigeration equipment with single evaporator Download PDFInfo
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- CN117663616A CN117663616A CN202311660636.4A CN202311660636A CN117663616A CN 117663616 A CN117663616 A CN 117663616A CN 202311660636 A CN202311660636 A CN 202311660636A CN 117663616 A CN117663616 A CN 117663616A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims description 24
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 8
- 235000014101 wine Nutrition 0.000 description 12
- 239000002826 coolant Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005465 channeling Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001122767 Theaceae Species 0.000 description 1
- 235000015278 beef Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
-
- 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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention is suitable for the field of refrigeration equipment, and discloses independent temperature control three-temperature-zone refrigeration equipment of a single evaporator, which comprises a shell and an inner container, wherein a back plate of the inner container is connected with an air deflector, and an air deflector cavity is formed between the air deflector and the back plate of the inner container; the fan and the evaporator are arranged in the air guide cavity; the inner container is provided with a first temperature zone, a second temperature zone and a third temperature zone which are mutually independent, and each temperature zone is respectively provided with an air return port for returning air to the air guide cavity; the back plate of the inner container is also provided with a first air inlet channel, a second air inlet channel and a third air inlet channel, the three channels are respectively used for conveying cool air to the first temperature zone, the second temperature zone and the third temperature zone, each channel is provided with an air door, and the flow of the first air inlet channel is greater than that of the second air inlet channel and the third air inlet channel during refrigeration. When the first temperature area is farthest from the evaporator, more energy is lost in the refrigerating process, and the refrigerating of the first temperature area is finished first, so that the energy loss in the conveying process can be reduced to the greatest extent.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to independent temperature control three-temperature-zone refrigeration equipment with a single evaporator.
Background
The multi-temperature-zone refrigeration equipment is used for meeting the storage requirements of different types of foods, such as different types of wines and different grades of wines, and the storage environment is different, so that the optimal storage condition of each type of wine is maintained by storing different wines in different temperature zones, and the quality and the taste of the wine are ensured.
The traditional three-temperature-zone wine cabinet system adopts a method for realizing three temperature zones by using a single evaporator: one fixed temperature area is arranged, the set temperature of the temperature area cannot be higher than the set temperature of the other two temperature areas, cold air in the low temperature area is sent to the other two high temperature areas through a fan, three storage temperature areas are realized, and the three temperature areas cannot realize complete independent temperature control and influence each other. When the system adopts three evaporators of one condenser, the refrigerant is controlled to enter each evaporator through a three-in-three electromagnetic valve, so that the independent temperature control of the three evaporators is realized, each evaporator is provided with an evaporation fan, the three evaporators can not refrigerate simultaneously, and the controller and the electromagnetic valve are used for carrying out zone refrigeration, so that the independent temperature control of the three temperature zones is realized; the method needs an electromagnetic four-way valve, and is additionally provided with three evaporators and three evaporating fans, so that the cost and the energy consumption are high.
Disclosure of Invention
The invention aims to at least solve one of the technical problems in the prior art, and therefore, the invention provides independent temperature control three-temperature-zone refrigeration equipment of a single evaporator.
The independent temperature control three-temperature zone refrigeration equipment of the single evaporator comprises a shell, an inner container and a refrigeration element, wherein the refrigeration element comprises a compressor, a condenser, a fan and the evaporator, and is characterized in that a back plate of the inner container is connected with an air deflector, and an air guiding cavity is formed between the air deflector and the back plate of the inner container;
the fan and the evaporator are arranged in the air guide cavity;
the inner container is provided with a first temperature zone, a second temperature zone and a third temperature zone which are mutually independent, and each temperature zone is provided with a return air inlet for returning air to the air guide cavity;
the back plate of the inner container is also provided with a first air inlet channel, a second air inlet channel and a third air inlet channel, the three channels are respectively used for conveying cool air to the first temperature zone, the second temperature zone and the third temperature zone, each channel is provided with an air door, and during refrigeration, the flow of the first air inlet channel is greater than the flow of the second air inlet channel and the third air inlet channel.
Further specifically, in the above technical scheme, the air deflector is provided with a first flow dividing part and a second flow dividing part, the first flow dividing part is used for dividing the air flow to the first air inlet duct and the second air inlet duct, and the second flow dividing part is used for dividing the air flow of the first air inlet duct to two sides of the first temperature zone.
Further specifically, in the above technical solution, the second flow dividing portion has a curved structure, the width direction of the air deflector is taken as an X axis, the height direction is taken as a Y axis, the bottom of one side of the air deflector is taken as an origin, and the expression of the curved structure is:
y＝1192.65-14.26x+0.14x 2 -6.37E-4x 3 +1.41E-6x 4 -1.23E-9x 5 ，
82.5≤x≤312；
y＝5.19E8-8.15E6x+5.12E4x 2 -1.61E2x 3 +0.25x 4 -1.59E-4x 5 ，312≤x≤326；
wherein E is an index of 10.
More specifically, in the above technical scheme, a plurality of first temperature area air inlets are arranged on two sides of the first air inlet duct from top to bottom.
More specifically, in the above technical solution, the air inlet of the first temperature zone located at the uppermost part is provided with an inclined surface facing the first temperature zone.
In the above technical scheme, the first dividing part divides the air flow into the second air inlet duct, and the width of the second air inlet duct is gradually increased and then gradually decreased.
Further specifically, in the above technical scheme, the end of the second air inlet duct is provided with a second temperature area air inlet, and the second air inlet duct is provided with an arc-shaped surface facing the second temperature area air inlet at a position close to the second temperature area air inlet.
Further specifically, in the above technical scheme, the air deflector is further provided with a fan fixing groove, and the fan is fixed in the fan fixing groove.
In the technical scheme, the first temperature zone, the second temperature zone and the third temperature zone are sequentially arranged from top to bottom, the fan is positioned in the middle of the air guide chamber, and the evaporator is positioned at the lower part of the air guide chamber;
the air deflector is further provided with an air guide cover, an opening of the air guide cover faces the first diversion part, the fan is located in the air guide cover, and the air guide cover is further provided with a third air inlet duct.
In the technical scheme, the evaporator is connected with a heating element, the first temperature zone, the second temperature zone and the third temperature zone are respectively provided with a heating compensation element and a temperature sensing element, and the temperature sensing element is used for sensing the actual temperature of each temperature zone;
when the set temperature of a temperature zone is higher than the actual temperature, opening the air doors and the heating elements of the fan and the high temperature zone, when the actual temperature of the high temperature zone is detected to reach the set temperature, closing the air doors of the fan and the high temperature zone, starting the compressor, after precooling, opening the air doors of the fan and the two low temperature zones for refrigeration, when the actual temperature of the high temperature zone is lower than the set temperature by 2 ℃, opening the heating compensation element of the high temperature zone until the high temperature zone reaches the set temperature, closing the air doors and the heating compensation element of the high temperature zone, and when all three temperature zones reach the temperature, stopping the compressor, and closing all the air doors.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
when the first temperature zone is furthest away from the evaporator and the fan, the energy loss is the greatest in the refrigerating process, so that by increasing the flow of the first air inlet duct, the first temperature zone can be ensured to obtain enough cool air at first, so that the first temperature zone can quickly reach the required temperature, and the refrigerating efficiency of the first temperature zone is improved; in addition, when the first temperature zone is furthest from the evaporator and fan, there may be energy losses to delivering cool air to this temperature zone, and thus reducing the energy losses caused by such distances requires providing a greater flow rate to ensure that the first temperature zone reaches the target temperature more quickly.
On the other hand, each temperature zone is provided with an independent air inlet duct and an independent air door, which means that the air inlet quantity and the refrigerating effect of each temperature zone can be controlled more carefully, and compared with a multi-air-door system, the design can regulate the temperature of each temperature zone more accurately, and more personalized refrigeration is provided. This individual duct design may allow for more efficient energy utilization and reduced unnecessary refrigeration losses compared to multi-duct systems.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of an explosive structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the rear portion of the liner of the present invention;
FIG. 3 is a schematic view of a part of the structure of a first air inlet duct according to the present invention;
FIG. 4 is a schematic view of a part of the structure of a second air inlet duct according to the present invention;
FIG. 5 is a schematic side cross-sectional view of the present invention;
FIG. 6 is a schematic view of a construction of a refrigeration unit according to the present invention;
fig. 7 is a schematic diagram of a curve structure of a first air inlet duct according to the present invention.
In the figure: 1. a housing; 2. an inner container; 3. a compressor; 4. a condenser; 5. a blower; 6. an evaporator; 7. an air deflector; 8. an air guiding chamber; 9. a first temperature zone; 10. a second temperature zone; 11. a third temperature zone; 12. a first air inlet duct; 13. a second air inlet duct; 14. a third air inlet duct; 15. a first split flow section; 16. a second branching section; 17. the first temperature area air inlet; 18. an inclined surface; 19. the air inlet of the second temperature zone; 20. an arc surface; 21. a capillary tube; 22. a wind scooper; 23. a heating element; 24. heating the compensation element; 25. drying the filter; 26. a damper; 27. and (5) an air return port.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present invention and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the description of the present invention, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present invention can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Furthermore, the terms "first," "second," "third," and the like in the description of the present specification and in the appended claims, are used for distinguishing between descriptions and not necessarily for indicating or implying a relative importance.
Reference in the specification to "one embodiment" or "some embodiments" or the like means that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the invention. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
The application defines a refrigeration equipment, and the refrigeration equipment can be a refrigerator, and can also be a product with refrigeration and storage capacity such as a wine cabinet, a freezer, a smoke cabinet, a beef cabinet, a tea bar machine and the like. The features of the present application are preferably used in wine cabinets, such as wine of different types and grades, where the requirements for the storage environment are different, by storing different wines in different temperature zones to maintain the optimal storage conditions for each wine, thereby ensuring its quality and mouthfeel.
Referring to fig. 1, the application provides an independent temperature-control three-temperature-zone refrigeration device of a single evaporator, which comprises a shell 1, an inner container 2 and a refrigeration element, wherein the refrigeration element comprises a compressor 3, a condenser 4, a fan 5 and an evaporator 6, a back plate of the inner container 2 is connected with an air deflector 7, and an air guiding cavity 8 is formed between the air deflector 7 and the back plate of the inner container 2; the fan 5 and the evaporator 6 are arranged in the air guide cavity 8; the inner container 2 is provided with a first temperature zone 9, a second temperature zone 10 and a third temperature zone 11 which are mutually independent, and each temperature zone is respectively provided with a return air inlet 27 for returning air to the air guide cavity 8; the back plate of the liner 2 is also provided with a first air inlet duct 12, a second air inlet duct 13 and a third air inlet duct 14, the three air ducts are respectively used for conveying cold air to the first temperature area 9, the second temperature area 10 and the third temperature area 11, each air duct is provided with an air door 26, and when in refrigeration, the flow of the first air inlet duct 12 is greater than the flow of the second air inlet duct 13 and the third air inlet duct 14.
As shown in fig. 5, when the first temperature zone 9 is furthest from the evaporator 6 and the fan 5, the energy loss is the greatest in the refrigerating process, so by increasing the flow rate of the first air inlet duct 12, it can be ensured that the first temperature zone 9 firstly obtains enough cool air, so that the first temperature zone 9 quickly reaches the required temperature, and the refrigerating efficiency of the first temperature zone 9 is improved; in addition, when the first temperature zone 9 is furthest from the evaporator 6 and the fan 5, there may be a loss of energy to deliver cool air to this temperature zone, and thus, reducing the loss of energy due to such distance requires providing a greater flow rate to ensure that the first temperature zone 9 reaches the target temperature more quickly.
On the other hand, the cooling efficiency is reduced due to the single air duct mode, because the plurality of temperature areas share one air supply path, when different temperatures need to be controlled, the air door 26 needs to be frequently adjusted, so that the cooling effect is not ideal, and the energy waste is increased; in the application, each temperature zone is provided with an independent air inlet duct and an independent air door 26, which means that the air inlet quantity and the refrigerating effect of each temperature zone can be controlled more carefully, the air inlet ducts with different flow can distribute cold air to different temperature zones more effectively, and each zone can reach the set temperature quickly; compared with a single-air-duct multi-air door 26 system, the temperature of each temperature zone can be accurately regulated through the design, more personalized refrigeration is provided, energy is effectively utilized, and unnecessary refrigeration loss is reduced.
The application designs a three-temperature-zone refrigeration device based on a single evaporator 6 and a single condenser 4, wherein the refrigeration device realizes independent temperature control of three temperature zones by utilizing three air doors 26, three air inlet channels and one evaporating fan 5; the air door 26 and the whole set of air duct system are matched for use, so that independent control of the cooling speed and the temperature of each temperature zone can be realized, and the opening of the air door 26 can be controlled to control the cooling speed of each temperature zone.
The refrigeration is completed by the single evaporator 6 system, wherein each temperature zone is regulated by an air duct switch, each temperature zone can independently control the temperature, each layer can be provided with a heating compensation element 24 for carrying out the scheduled lifting regulation, an independent air duct circulation system is provided for independently carrying out air intake and air return, each temperature air duct is not affected, and the temperature can be freely regulated without channeling.
The single evaporator 6 and the single fan 5 are used, so that the noise amount of a three-temperature zone system is less compared with that of the traditional refrigeration equipment, the cost is lower, the independent temperature control is stable, and the energy consumption is lower than that of the three-fan 5 of the traditional system three evaporator 6 and the three-fan 5 system of the single evaporator 6.
It will be appreciated that the refrigeration component is a common component in the art, and the specific component is not limited herein, and those skilled in the art can adjust the component according to actual needs. Alternatively, as shown in fig. 6, the refrigerating element includes a compressor 3, a condenser 4 and an evaporator 6, the compressor 3 is connected with the condenser 4, the condenser 4 is connected with a dry filter 25, the dry filter 25 is connected with a capillary tube 21, the capillary tube 21 is connected with the evaporator 6, and the evaporator 6 is connected with the compressor 3 again to form a cold air loop.
The compressor 3 compresses the gaseous coolant at normal temperature and normal pressure into the gaseous coolant at high temperature and high pressure, the condenser 4 converts the gaseous coolant conveyed by the compressor 3 into the liquid coolant at high pressure, then the impurities possibly existing in the condenser 4 are removed through the dry filter 25, the working medium in the refrigerating system is guaranteed to be pure, the working medium is conveyed to the capillary tube 21 for throttling and depressurization, the liquid coolant is conveyed to the evaporator 6 after the capillary tube 21 is depressurized, the evaporator 6 is used for carrying out heat exchange treatment on the gas in the air guide chamber 8, the evaporator 6 converts the liquid coolant into the gaseous coolant in the heat exchange treatment process, and the gaseous coolant is conveyed to the compressor 3 for circulation refrigeration.
In some embodiments, as shown in fig. 2, the air deflector 7 is provided with a first splitting part 15 and a second splitting part 16, where the first splitting part 15 is used to split the airflow to the first air inlet duct 12 and the second air inlet duct 13, and the second splitting part 16 is used to split the airflow from the first air inlet duct 12 to two sides of the first temperature zone 9.
The first diversion part 15 diverts the cool air to the first air inlet duct 12 and the second air inlet duct 13, more effectively conveys the cool air to the first temperature zone 9 and the second temperature zone 10, maximally utilizes the cool air provided by the system, improves the overall refrigeration effect, and ensures that the first temperature zone can quickly reach the required temperature.
The second flow dividing part 16 divides the air flow of the first air inlet duct 12 to two sides of the first temperature zone 9, increases the volume of the air flowing in the first air inlet duct 12 in unit time, and improves the flow of the first air inlet duct 12 so as to ensure that the first temperature zone 9 obtains enough cold air firstly, so that the first temperature zone 9 quickly reaches the required temperature, and improves the refrigeration efficiency of the first temperature zone 9; and the second flow dividing part 16 makes the air flow distribution of the first air inlet duct 12 more uniform, increases the coverage range of the air flow, avoids the influence of partial areas of the first temperature area 9 due to the non-uniform air flow, and improves the refrigeration efficiency.
In some embodiments, as shown in fig. 7, the second flow dividing part 16 has a curved structure as shown in fig. 7C, the width direction of the air guide plate 7 is taken as the X axis, the height direction is taken as the Y axis, the bottom of one side of the air guide plate 7 is taken as the origin, and the expression of the curved structure is:
y＝1192.65-14.26x+0.14x 2 -6.37E-4x 3 +1.41E-6x 4 -1.23E-9x 5 ，
82.5≤x≤312；
y＝5.19E8-8.15E6x+5.12E4x 2 -1.61E2x 3 +0.25x 4 -1.59E-4x 5 ，312≤x≤326；
wherein E is an index of 10 and E8 is 10 8 。
The structural expression of the rest of the first air inlet duct 12 in fig. 7 is as follows:
a line segment A: x=270, 375.ltoreq.y.ltoreq.440;
b line segment: y= 6.81E4-9.11E2x+4.84x 2 -0.01x 3 +1.67E-5x 4 -8.72E-9x
5 ,340≤x≤478；
D line segment: y= 807.03256-7.2766x+9.203e-2x 2 -5.849E-4x 3 +1.836E
-6x 4 -2.363E-9x 5 ，30≤x≤268；
E line segment: y= -5.6e5+6.874e3x-33.44x 2 +0.08x 3 -9.59E-5x 4 +4.51E-
8x 5 ，326≤x≤464；
F, line segment: x= 82.5,664 and y is not less than 877;
g line segment: y= -12802.45+991.53x-28.36x 2 +0.4x 3 +2.81E-3x 4 -7.76E-
6x 5 ，54≤x≤82.5。
The curve structure can optimize air flow, so that air flows in the air deflector 7 are distributed more uniformly at different positions, the air flows are distributed more uniformly to the two sides of the first air inlet duct 12 and the first temperature zone 9, the air flows are prevented from being too concentrated or uneven, and the optimized air flow distribution is beneficial to reducing unnecessary energy loss.
In some embodiments, as shown in fig. 2, a plurality of first temperature area air inlets 17 are disposed on two sides of the first air inlet duct 12 from top to bottom.
The arrangement of the air inlets can realize more uniform cold air distribution on the two sides of the first air inlet duct 12, so that the air inlets are beneficial to ensuring that different parts of the first temperature zone 9 can obtain enough cold air, and large temperature difference among the zones is avoided; uniformly distributing the cold air means that the entire first temperature zone 9 reaches the desired temperature more quickly to increase the cooling efficiency, so that the cooling process is faster and uniform. In addition, the plurality of air inlets can ensure that articles stored in different positions can be in similar environment temperature, and are beneficial to meeting the same requirements of the same type and grade of wine on storage environment.
In some embodiments, as shown in fig. 3, the uppermost first warm zone air intake 17 is provided with an inclined surface 18 facing the first warm zone 9.
The air obliquely enters the air inlet 17 of the first temperature zone, so that the loss or scattering of the cold air from the top to other areas can be reduced, the cold air is kept to flow to the first temperature zone 9 more intensively, the waste of energy is reduced, and the refrigeration efficiency is improved.
In some embodiments, as shown in fig. 4, after the first splitting part 15 splits the airflow to the second air inlet duct 13, the width of the second air inlet duct 13 is gradually increased and then gradually decreased.
The gradually increased width can reduce the air flow speed, and is helpful for reducing the pressure when the air flow enters the second air inlet duct 13; the gradually reduced width is favorable for maintaining a more stable air flow state in the air supply duct, and the energy loss is reduced.
In some embodiments, as shown in fig. 4, a second temperature zone air inlet 19 is provided at the end of the second air inlet duct 13, and an arc surface 20 facing the second temperature zone air inlet 19 is provided at a position close to the second temperature zone air inlet 19 in the second air inlet duct 13.
By the design of the arcuate surface 20, the resistance of the air flow can be reduced, the air flow can more smoothly enter the second temperature zone 10, the energy loss is reduced, and the stability of the air flow is maintained.
In some embodiments, the air deflector 7 is further provided with a fan fixing groove (not shown) in which the fan 5 is fixed.
The fan fixing groove can ensure that the fan 5 is firmly installed on the air deflector 7, and can prevent vibration or resonance generated by the fan 5 in operation, thereby reducing noise and maintaining stability of the system.
The fan 5 can be fixed in the fan fixing groove by means of a buckle or a bolt.
As shown in fig. 5, in some embodiments, the first temperature zone 9, the second temperature zone 10 and the third temperature zone 11 are sequentially arranged from top to bottom, the fan 5 is located in the middle of the air guiding chamber 8, and the evaporator 6 is located in the lower part of the air guiding chamber 8;
the air deflector 7 is further provided with an air guiding cover 22, the opening of the air guiding cover 22 faces the first diversion portion 15, the fan 5 is located in the air guiding cover 22, and the air guiding cover 22 is further provided with a third air inlet duct 14.
The air guide cover 22 helps to guide the air flow towards the first diversion part 15 and the third air inlet duct 14, so that the diversion and guiding effects of the air flow can be improved, the air supply is more targeted, and the refrigeration efficiency is improved.
In some embodiments, as shown in fig. 5, the evaporator 6 is connected with a heating element 23, and the first, second and third temperature zones 9, 10 and 11 are respectively provided with a heating compensation element 24 and a temperature sensing element (not shown) for sensing the actual temperature of each temperature zone;
when the set temperature of a temperature zone is higher than the actual temperature, the fans 5, the air doors 26 of a high temperature zone and the heating elements 23 are opened, when the actual temperature of the high temperature zone is detected to reach the set temperature, the fans 5 and the air doors 26 of the high temperature zone are closed, the compressor 3 is started, after precooling, the fans 5 and the air doors 26 of two low temperature zones are opened for refrigeration, when the actual temperature of the high temperature zone is lower than the set temperature by 2 ℃, the heating compensation elements 24 of the high temperature zone are opened until the high temperature zone reaches the set temperature, the air doors 26 and the heating compensation elements 24 of the high temperature zone are closed, when the temperature of all three temperature zones are detected, the compressor 3 is stopped, and all the air doors 26 are closed.
After the high temperature area reaches the set temperature, other temperature areas can reach the required temperature in proper time, so that the whole temperature balance is realized.
A heating element 23 is arranged at the bottom of the evaporator 6, and when the system frosts, the heating element 23 heats and melts the frosting of the windward side of the evaporator 6; when the temperature of a certain temperature zone in the box is lower than the set temperature, the compressor 3 stops working, the heating compensation element 24 works, the return air entering the evaporator 6 is heated, and the fan 5 returns to each temperature zone to maintain the temperature in the temperature zone to the set value. The heating power of the heating compensation element 24 can be adjusted by the magnitude of the input current, so as to avoid the excessive rise of the return air temperature.
The independent three-temperature-zone air duct system conveys air from an air duct to each temperature zone through the centrifugal fan 5 after refrigeration of the evaporator 6, temperature regulation and control are carried out through opening and closing of the air duct by the air door 26, temperature monitoring of each temperature zone is carried out by the temperature sensing element, closing of the air duct is carried out, and opening and closing of the heating compensation element 24 are carried out, each temperature zone is an independent circulating air duct system, channeling of the air duct is avoided, and the independence of each air duct is affected.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention, and are intended to be included in the scope of the present invention.
Claims (10)
1. The independent temperature control three-temperature zone refrigeration equipment of the single evaporator comprises a shell, an inner container and a refrigeration element, wherein the refrigeration element comprises a compressor, a condenser, a fan and the evaporator, and is characterized in that a back plate of the inner container is connected with an air deflector, and an air guiding cavity is formed between the air deflector and the back plate of the inner container;
the fan and the evaporator are arranged in the air guide cavity;
the inner container is provided with a first temperature zone, a second temperature zone and a third temperature zone which are mutually independent, and each temperature zone is provided with a return air inlet for returning air to the air guide cavity;
the back plate of the inner container is also provided with a first air inlet channel, a second air inlet channel and a third air inlet channel, the three channels are respectively used for conveying cool air to the first temperature zone, the second temperature zone and the third temperature zone, each channel is provided with an air door, and during refrigeration, the flow of the first air inlet channel is greater than the flow of the second air inlet channel and the third air inlet channel.
2. The single evaporator independent temperature control three temperature zone refrigeration apparatus as set forth in claim 1, wherein the air deflector is provided with a first flow dividing portion for dividing the air flow to the first air intake duct and the second air intake duct, and a second flow dividing portion for dividing the air flow of the first air intake duct to both sides of the first temperature zone.
3. The single evaporator independent temperature control three temperature zone refrigeration apparatus according to claim 2, wherein the second split flow portion has a curved structure, the width direction of the air deflector is taken as the X axis, the height direction is taken as the Y axis, the bottom of one side of the air deflector is taken as the origin, and the expression of the curved structure is:
y＝1192.65-14.26x+0.14x 2 -6.37E-4x 3 +1.41E-6x 4 -1.23E-9x 5 ，
82.5≤x≤312；
y＝5.19E8-8.15E6x+5.12E4x 2 -1.61E2x 3 +0.25x 4 -1.59E-4x 5 ，312≤x≤326；
wherein E is an index of 10.
4. The single evaporator independent temperature control three-temperature zone refrigeration device according to claim 2, wherein a plurality of first temperature zone air inlets are formed in two sides of the first air inlet duct from top to bottom.
5. The single evaporator, independent temperature controlled three temperature zone refrigeration apparatus as set forth in claim 4, wherein the uppermost first temperature zone air intake is provided with an inclined surface facing the first temperature zone.
6. The apparatus of claim 2, wherein the first dividing portion divides the air flow into the second air inlet duct, and the width of the second air inlet duct is gradually increased and then gradually decreased.
7. The single evaporator independent temperature controlled three temperature zone refrigeration apparatus as set forth in claim 6, wherein a second temperature zone air inlet is provided at a terminal end of said second air inlet duct, and said second air inlet duct is provided with an arcuate surface facing the second temperature zone air inlet at a position adjacent to said second temperature zone air inlet.
8. The single evaporator, independent temperature controlled triple temperature zone refrigeration apparatus according to any one of claims 2-6, wherein said air deflector is further provided with a fan fixing groove, said fan being fixed in said fan fixing groove.
9. The independent temperature-controlled three-temperature-zone refrigeration device of claim 8, wherein the first temperature zone, the second temperature zone and the third temperature zone are sequentially arranged from top to bottom, the fan is positioned in the middle of the air guide chamber, and the evaporator is positioned in the lower part of the air guide chamber;
the air deflector is further provided with an air guide cover, an opening of the air guide cover faces the first diversion part, the fan is located in the air guide cover, and the air guide cover is provided with the third air inlet duct.
10. The single evaporator independent temperature controlled three temperature zone refrigeration apparatus of claim 1, wherein the evaporator is connected with a heating element, the first, second and third temperature zones are respectively provided with a heating compensation element and a temperature sensing element, the temperature sensing element is used for sensing the actual temperature of each temperature zone;
when the set temperature of a temperature zone is higher than the actual temperature, opening the air doors and the heating elements of the fan and the high temperature zone, when the actual temperature of the high temperature zone is detected to reach the set temperature, closing the air doors of the fan and the high temperature zone, starting the compressor, after precooling, opening the air doors of the fan and the two low temperature zones for refrigeration, when the actual temperature of the high temperature zone is lower than the set temperature by 2 ℃, opening the heating compensation element of the high temperature zone until the high temperature zone reaches the set temperature, closing the air doors and the heating compensation element of the high temperature zone, and when all three temperature zones reach the temperature, stopping the compressor, and closing all the air doors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311660636.4A CN117663616A (en) | 2023-12-05 | 2023-12-05 | Independent temperature control three-temperature-zone refrigeration equipment with single evaporator |
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| CN202311660636.4A CN117663616A (en) | 2023-12-05 | 2023-12-05 | Independent temperature control three-temperature-zone refrigeration equipment with single evaporator |
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| WO2022077692A1 (en) * | 2020-10-13 | 2022-04-21 | 重庆美的制冷设备有限公司 | Air conditioner |
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| JP2004108625A (en) * | 2002-09-17 | 2004-04-08 | Toshiba Corp | Refrigerator |
| CN202393167U (en) * | 2011-12-14 | 2012-08-22 | 合肥海尔电冰箱有限公司 | Three-door refrigerator |
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