CN113701422B - Refrigeration equipment and control method thereof - Google Patents
Refrigeration equipment and control method thereof Download PDFInfo
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- CN113701422B CN113701422B CN202010440264.4A CN202010440264A CN113701422B CN 113701422 B CN113701422 B CN 113701422B CN 202010440264 A CN202010440264 A CN 202010440264A CN 113701422 B CN113701422 B CN 113701422B
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- refrigeration
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- drawer
- freezing
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 151
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000007710 freezing Methods 0.000 claims abstract description 79
- 230000008014 freezing Effects 0.000 claims abstract description 79
- 239000004065 semiconductor Substances 0.000 claims abstract description 50
- 239000011232 storage material Substances 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims description 110
- 239000002826 coolant Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 14
- 239000013078 crystal Substances 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000002194 freeze distillation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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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
- 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
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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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
- 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
-
- 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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
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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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/003—Arrangement or mounting of control or safety devices for movable devices
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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
-
- 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
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
- F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention discloses a refrigeration device and a control method thereof, the refrigeration device comprises a shell, a freezing air channel is formed on the shell, a refrigeration cavity is arranged in the shell, and the refrigeration cavity is internally provided with: a drawer; the cold end of the semiconductor refrigeration structure is abutted against the drawer; the cold storage box is internally filled with cold storage agent, and the hot end of the semiconductor refrigeration structure is abutted against the cold storage box to obtain the working mode of the refrigeration equipment; judging whether the working mode is a flash freezing mode or not; if the working mode is the flash freezing mode, the freezing air duct blows air to the cold storage box; if the working mode is the non-flash freezing mode, the freezing air duct blows air to the drawer. The refrigeration equipment combines the refrigeration of the compressor and the refrigeration of the semiconductor refrigeration structure, and the cold storage agent can continuously dissipate heat of the hot end of the semiconductor refrigeration structure, so that the refrigeration equipment can achieve the flash freezing effect below 50 ℃ below zero in a short time, food can quickly pass through the maximum ice crystal zone, and the flash freezing and freshness locking effects are achieved.
Description
Technical Field
The invention relates to the technical field of refrigeration of refrigerators, in particular to a refrigeration device and a control method thereof.
Background
With the improvement of living standard of people, the requirements of people on refrigeration equipment, such as a refrigerator, are higher and higher. The existing refrigerators in the market have two refrigeration modes, one is semiconductor refrigeration, and the other is widely used compressor refrigeration. The semiconductor refrigeration is not as good as the compressor refrigeration in power and efficiency because of the problems of poor heat dissipation capability, slow response and unstable temperature at the hot end, so the semiconductor refrigeration is less used in household refrigerators and most used in small-sized equipment. However, the existing compressor can only reduce the temperature to-24 ℃ to-14 ℃ and can not quickly reduce the temperature to below-24 ℃ and can not quickly reduce the temperature to below-50 ℃, so that the flash freezing and freshness-locking effect required by users can not be achieved.
Accordingly, there is a need for a refrigeration apparatus and a control method thereof, which overcomes or alleviates at least the above-mentioned shortcomings in the prior art.
Disclosure of Invention
The invention mainly aims to provide refrigeration equipment and a control method thereof, and aims to solve the technical problem that the refrigeration equipment in the prior art cannot realize flash freezing and freshness locking.
In order to achieve the above object, the refrigeration device provided by the present invention comprises a housing, wherein a freezing air duct is formed on the housing, a refrigeration chamber is arranged in the housing, and the refrigeration chamber is internally provided with: a drawer; the cold end of the semiconductor refrigeration structure is abutted against the drawer; the cold storage box is internally filled with a cold storage agent, the hot end of the semiconductor refrigeration structure is abutted against the cold storage box, and the refrigeration air duct is used for blowing air to the cold storage box and/or the drawer.
In an embodiment, a supporting table connected to the housing is further disposed in the refrigeration chamber, the drawer is supported on the supporting table, a cooling air duct is formed on the supporting table, the cold storage box is disposed in the cooling air duct, and the housing is provided with a first air blowing opening communicating the freezing air duct with the cooling air duct.
In one embodiment, the housing is opened with a second air blowing port communicated with the refrigeration cavity, and the second air blowing port is positioned above the drawer.
In an embodiment, a damper is disposed between the first air blowing opening and the second air blowing opening, and the damper is hinged to the housing to open the first air blowing opening and the second air blowing opening simultaneously, or to close one of the first air blowing opening and the second air blowing opening and open the other.
In an embodiment, a heat-conducting plate is further arranged between the drawer and the cold end of the semiconductor refrigeration structure, one side of the heat-conducting plate is in surface contact with the cold end of the semiconductor refrigeration structure, and the other side of the heat-conducting plate is in surface contact with the drawer.
In one embodiment, the refrigeration equipment is further provided with a heat insulation plate, the heat insulation plate is arranged between the heat conduction plate and the cold accumulation box, the heat insulation plate is provided with a mounting groove, and the semiconductor refrigeration structure is mounted in the mounting groove.
In addition, the invention also provides a control method of the refrigeration equipment, which is applied to the refrigeration equipment, and the control method of the refrigeration equipment comprises the following steps:
acquiring the working mode of the refrigeration equipment;
judging whether the working mode is a flash freezing mode or not;
if the working mode is a flash freezing mode, the freezing air duct is controlled to blow air to the cold storage box;
and if the working mode is a non-flash freezing mode, controlling the freezing air duct to blow air to the drawer.
In an embodiment, if the operation mode is the flash freezing mode, the step of blowing air to the cold storage box by the freezing air duct includes:
controlling to close the second air blowing port and open the first air blowing port; or,
and controlling to open the first air blowing opening and the second air blowing opening simultaneously.
In one embodiment, the second air blowing opening is closed, and the first air blowing opening is opened; or, the step of opening the first air blowing opening and the second air blowing opening simultaneously comprises:
acquiring the temperature of the coolant;
judging whether the temperature of the coolant is higher than a preset temperature or not;
if the temperature of the coolant is higher than the preset temperature, closing the second air blowing port and opening the first air blowing port;
and if the temperature of the coolant is not higher than the preset temperature, the step of simultaneously opening the first air blowing port and the second air blowing port is executed.
In one embodiment, if the operation mode is the non-flash freezing mode, the step of blowing air to the drawer by the freezing duct includes:
and controlling to close the first air blowing opening and open the second air blowing opening.
According to the technical scheme, when food stored in the refrigeration equipment needs to be frozen and fresh, the cold end of the semiconductor refrigeration structure refrigerates the drawer, the cold storage agent in the cold storage box cools the hot end of the semiconductor refrigeration structure through phase change, and when the temperature of the cold storage agent is detected to be higher than the preset temperature, the freezing air duct only blows air to the cold storage box to refrigerate the cold storage agent, so that the temperature of the cold storage agent is kept below the preset temperature, and the temperature of the hot end of the semiconductor refrigeration structure is guaranteed to be lower than the preset temperature. When the temperature of detecting the coolant is not greater than the preset temperature, the freezing air duct blows the coolant box and the drawer simultaneously, and when the temperature of the coolant is guaranteed, the drawer is directly blown to ensure the temperature uniformity in the drawer. When food stored in the refrigeration equipment is not required to be frozen and locked to be fresh or is not suitable to be frozen, and only ordinary freezing is required, the freezing air duct only blows air to the drawer, so that normal refrigeration of the drawer is guaranteed. The refrigeration equipment combines the refrigeration of the compressor and the refrigeration of the semiconductor refrigeration structure, and the cold storage agent can continuously dissipate heat of the hot end of the semiconductor refrigeration structure, so that the refrigeration equipment can achieve the flash freezing effect below 50 ℃ below zero in a short time, and food can quickly pass through the largest ice crystal band to achieve the flash freezing and freshness locking effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the embodiments or technical solutions of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an assembly of a refrigeration unit according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a refrigeration unit according to an embodiment of the present invention;
FIG. 3 is an enlarged view of area A of FIG. 2;
FIG. 4 is a schematic view of a portion of a refrigeration apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a cold storage box of a refrigeration device according to an embodiment of the invention;
fig. 6 is a schematic flow chart of a first embodiment of the control method of the refrigeration apparatus of the present invention;
fig. 7 is a schematic flow chart of a second embodiment of the control method of the refrigeration apparatus according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
4 | Semiconductor refrigeration structure |
| 1 | |
5 | |
| 11 | First |
51 | |
| 12 | Second |
6 | Supporting table |
| 13 | |
61 | |
| 14 | Freezing air duct | 7 | |
| 2 | Refrigeration chamber | 8 | |
| 3 | Drawer |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, 8230; \8230;) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components in a specific posture (as shown in the figure), the motion situation, etc., and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The description of the orientations of "up", "down", etc. in the present invention with reference to the orientation shown in fig. 2 is merely for explaining the relative positional relationship between the respective components in the posture shown in fig. 2, and if the specific posture is changed, the directional indication is changed accordingly.
The invention provides a refrigeration device.
As shown in fig. 1 to 5, in an embodiment of the present invention, a refrigeration apparatus 100 includes a housing 1, the housing 1 is formed with a freezing air duct 14, a refrigeration chamber 2 is provided in the housing 1, a drawer 3, a semiconductor refrigeration structure 4 and a cold storage box 5 are provided in the refrigeration chamber 2, and a cold end of the semiconductor refrigeration structure 4 abuts against the drawer 3; the cold storage box 5 is filled with cold storage agent, the hot end of the semiconductor refrigeration structure 4 is abutted against the cold storage box 5, and the freezing air duct 14 is used for blowing air to the cold storage box 5 and/or the drawer 3.
The refrigeration device 100 of the present embodiment may be a refrigerator, a freezer, an ice chest, etc. in the prior art, the semiconductor refrigeration structure 4 of the present embodiment generally employs a semiconductor refrigeration sheet, which is also called a thermoelectric refrigeration sheet, and is a heat pump. The freezing duct 14 of the present embodiment is cooled by a compressor of the refrigeration apparatus 100. The drawer 3, the semiconductor refrigeration structure 4 and the cold storage box 5 are sequentially stacked from top to bottom, the drawer 3 is used for storing food, the upper side face of the semiconductor refrigeration structure 4 is a cold end, the cold end is in surface contact with the drawer 3, the lower side face of the semiconductor refrigeration structure 4 is a hot end, the hot end is in surface contact with the cold storage box 5, a temperature sensor used for detecting the temperature of a cold storage agent is arranged in the cold storage box 5, and the cold storage agent with the phase-change temperature of-18 ℃ can be adopted as the cold storage agent for reducing the temperature of the cold end of the semiconductor refrigeration structure 4 to-50 ℃.
When food stored in the refrigeration device 100 needs to be frozen and fresh, the cold end of the semiconductor refrigeration structure 4 refrigerates towards the drawer 3, and the cold storage agent in the cold storage box 5 cools the hot end of the semiconductor refrigeration structure 4 through phase change, so that the heat dissipation speed of the hot end of the semiconductor refrigeration structure 4 is increased, and the temperature of the hot end of the semiconductor refrigeration structure 4 is stable; when the temperature of the coolant is detected to be higher than the preset temperature, the freezing air duct 14 only blows air to the coolant storage box 5 to cool the coolant, so that the temperature of the coolant is kept at the preset temperature, and the temperature of the hot end of the semiconductor refrigeration structure 4 is lower than the preset temperature. When the temperature that detects the coolant is not greater than when predetermineeing the temperature, the freezing wind channel 14 is bloied cold-storage box 5 and drawer 3 simultaneously, when guaranteeing the coolant temperature, directly bloies drawer 3 and can also guarantee the temperature homogeneity in the drawer 3. When the food stored in the refrigerating apparatus 100 does not need to be frozen and fresh, but only needs to be frozen normally, the freezing air duct 14 only blows air to the drawer 3, so that normal refrigeration of the drawer 3 is ensured. The refrigeration equipment 100 of this embodiment is through compressor refrigeration and the overlapping of semiconductor refrigeration structure 4 refrigeration mutually to make the cold-storage agent can last the heat dissipation to the hot junction of semiconductor refrigeration structure 4, make refrigeration equipment 100 can reach the flash freezing effect below-50 ℃ in the short time, can let food spend the biggest ice crystal area fast, reach the flash freezing and lock fresh effect.
As shown in fig. 1 to 3, a support table 6 connected to the housing 1 is further disposed in the refrigeration chamber 2, the drawer 3 is supported on the support table 6, the support table 6 is formed with a cooling air duct 61, the cold storage box 5 is disposed in the cooling air duct 61, and the housing 1 is provided with a first air blowing opening 11 for communicating the freezing air duct 14 with the cooling air duct 61. The support table 6 of this embodiment is connected with the casing 1 perpendicularly, when the cold-storage agent needs to cool down, opens first blowing opening 11, and freezing wind channel 14 accessible is first to blow mouthful 11 and is blown to the cold-storage box 5 in the cooling wind channel 61, when cold-storage box 5 need not cool down, closes first blowing opening 11 and just can realize ordinary freezing.
In this embodiment, casing 1 offers the second mouth 12 of blowing with refrigeration cavity 2 intercommunication, the second mouth 12 of blowing is located the top of first wind gap 11 and drawer 3, wind in freezing wind channel 14 can loop through second mouth 12 of blowing and first wind gap 11 of blowing, food in refrigeration plant 100 needs to flash to freeze and locks the freshness, and when the temperature of cold-storage agent is not greater than preset temperature, can open first wind gap 11 and second mouth 12 of blowing simultaneously, make freezing wind channel 14 blow drawer 3 and cold-storage box 5 simultaneously, improve the temperature homogeneity in the drawer 3 when guaranteeing refrigeration plant 100 cooling rate.
In the refrigeration apparatus 100 of the present embodiment, a damper 13 is disposed between the first air blowing opening 11 and the second air blowing opening 12, and the damper 13 is hinged to the housing 1 to open the first air blowing opening 11 and the second air blowing opening 12 simultaneously, or to close one of the first air blowing opening 11 and the second air blowing opening 12 and open the other.
As shown in fig. 2, the first air blowing opening 11 and the second air blowing opening 12 of the present embodiment are perpendicular to each other, and when the air door 13 is in the vertical position, the first air blowing opening 11 can be opened while the second air blowing opening 12 is closed, so that the freezing air duct 14 blows air only to the cold storage box 5; when the air door 13 is in a horizontal position, the first air blowing opening 11 can be closed, and the second air blowing opening 12 can be opened at the same time, so that the freezing air duct 14 only blows air to the drawer 3; when the air door 13 is in an inclined state, the first air blowing opening 11 and the second air blowing opening 12 can be opened at the same time, and the first air blowing opening 11 and the second air blowing opening 12 are both in a half-open state, so that the freezing air duct 14 blows air to the cold storage box 5 and the drawer 3 at the same time. The present embodiment simultaneously controls the opening and closing of the first air blowing port 11 and the second air blowing port 12 by rotating the damper 13, and has a simple structure and facilitates the assembly of the refrigeration apparatus 100.
As shown in fig. 3, in order to make the low temperature generated at the cold end of the semiconductor refrigeration structure 4 reach the bottom surface of the whole drawer 3, a heat conduction plate 7 is further arranged between the drawer 3 and the cold end of the semiconductor refrigeration structure 4, one side of the heat conduction plate 7 is in surface contact with the cold end of the semiconductor refrigeration structure 4, and the other side of the heat conduction plate 7 is in surface contact with the drawer 3. The heat conducting plate 7 in this embodiment may be a superconducting aluminum plate in the prior art or another superconducting plate capable of conducting heat rapidly, and the invention is not limited thereto. The heat-conducting plate 7 can transmit the temperature of the cold junction of the semiconductor refrigeration structure 4 to the bottom surface of the drawer 3 fast, so that the refrigeration speed in the drawer 3 is increased, and the refrigeration equipment 100 can achieve the effect of flash freezing and locking freshness more quickly.
As shown in fig. 4, the refrigeration apparatus 100 of the present embodiment is further provided with a heat insulation plate 8, the heat insulation plate 8 is disposed between the heat conduction plate 7 and the cold storage box 5, the heat insulation plate 8 is provided with a mounting groove, and the semiconductor refrigeration structure 4 is mounted in the mounting groove. The heat insulating board 8 of this embodiment can adopt thermal-insulated cotton, and semiconductor refrigeration structure 4 shifts the heat to the hot junction from the cold junction, and heat insulating board 8 can keep apart the heat that the cold junction shifted to the hot junction, avoids the heat reverse cold junction that passes back of hot junction, influences the refrigeration effect of cold junction. Specifically, the upper and lower surfaces of the semiconductor refrigeration structure 4 are flush with the upper and lower surfaces of the heat insulation board 8, respectively, so as to avoid influencing the temperature conduction of the cold end.
As shown in fig. 5, the lower surface of the cold storage box 5 of the present embodiment protrudes outward to form a plurality of fins 51 disposed at intervals, and the plurality of fins 51 increase the contact area between the cold storage box 5 and the cooling air duct 61, thereby improving the heat exchange efficiency between the cold storage box 5 and the cooling air duct 61, and enabling the cold storage agent in the cold storage box 5 to be cooled rapidly.
In addition, the present invention also provides a control method of the refrigeration apparatus 100, which is applied to the refrigeration apparatus 100 as described above, and specific structures of the refrigeration apparatus 100 can be seen from fig. 1 to 5.
In the first embodiment of the control method of the refrigeration apparatus 100 provided by the present invention, the control method of the refrigeration apparatus 100 includes the following specific steps:
step S10, acquiring the working mode of the refrigeration equipment 100;
step S20, judging whether the working mode is a flash freezing mode;
step S30, if the working mode is the flash freezing mode, the freezing air duct 14 is controlled to blow air to the cold storage box 5;
and step S40, if the working mode is the non-flash freezing mode, controlling the freezing air duct 14 to blow air to the drawer 3.
The working mode of the refrigeration equipment 100 is obtained in real time, when the refrigeration equipment 100 is in a flash freezing mode, the freezing air duct 14 only blows air to the cold storage box 5, and the heat dissipation of the hot end of the semiconductor refrigeration structure 4 by the cold storage agent in the cold storage box 5 is preferentially ensured, so that the refrigeration equipment 100 can achieve a flash freezing effect below-50 ℃ in a short time, food can quickly pass through the maximum ice crystal zone, and a flash freezing and fresh-locking effect is achieved; or simultaneously blowing air to the cold storage box 5 and the drawer 3, so that the cooling speed and the temperature uniformity in the drawer 3 can be ensured on the premise of ensuring the heat dissipation of the hot end of the semiconductor refrigeration structure 4; when the refrigerating apparatus 100 is in the non-flash freezing mode, the freezing air duct 14 blows air only to the drawer 3, so that the drawer 3 is used as a normal freezing drawer 3.
If the working mode is the flash freezing mode, the step of blowing the cold storage box 5 by the freezing air duct 14 can be specifically passed:
controlling to close the second air blowing opening 12 and open the first air blowing opening 11; or,
the control opens the first blowing port 11 and the second blowing port 12 at the same time.
When the refrigeration equipment 100 is in a flash freezing mode and needs to blow air to the cold storage box 5, the state of the air door 13 can be specifically changed to control the opening and closing of the first air blowing port 11 and the second air blowing port 12, when the cold storage box 5 needs to be blown, the air door 13 is in a horizontal state, the second air blowing port 12 is closed, the first air blowing port 11 is opened, and the freezing air duct 14 only blows air to the cold storage box 5; or, the damper 13 is inclined, and the first air blowing port 11 and the second air blowing port 12 are opened at the same time, so that the freezing air duct 14 blows air to the cold storage box 5 and the drawer 3 at the same time. In the embodiment, the refrigeration effect of the refrigeration device 100 is adjusted by changing the state of the damper 13, so that the temperature in the drawer 3 can be accurately regulated.
Further, referring to fig. 7, the first embodiment of the control method of the refrigeration apparatus 100 according to the present invention proposes the second embodiment of the control method of the refrigeration apparatus 100, which closes the second air blowing port 12 and opens the first air blowing port 11; or, the step of simultaneously opening the first air blowing opening 11 and the second air blowing opening 12 includes the following specific steps:
step S31, acquiring the temperature of the coolant;
step S32, judging whether the temperature of the coolant is greater than a preset temperature;
step S33, if the temperature of the coolant is higher than the preset temperature,
then the step of closing the second blowing port 12 and opening the first blowing port 11 is performed;
step S34, if the temperature of the coolant is not higher than the preset temperature,
the step of simultaneously opening the first blowing port 11 and the second blowing port 12 is performed.
The method comprises the steps of obtaining the temperature of the coolant while the refrigeration equipment 100 is in a flash freezing mode, judging whether the temperature of the coolant is higher than a preset temperature or not in real time, enabling an air door 13 to be in a vertical state when the temperature of the coolant is higher than the preset temperature, closing a second air blowing port 12, opening a first air blowing port 11, enabling a cooling air duct 61 to be closed, enabling a freezing air duct 14 to blow air only to a cold storage box 5, preferentially ensuring heat dissipation of a hot end of a semiconductor refrigeration structure 4, enabling the refrigeration equipment 100 to be rapidly cooled, and achieving the effect of flash freezing and freshness locking; when the obtained temperature of the coolant is not higher than the preset temperature, the air door 13 is in an inclined state, and the first air blowing opening 11 and the second air blowing opening 12 are opened at the same time, so that the cooling air duct 61 is half opened, the cooling speed and the temperature uniformity in the drawer 3 can be ensured on the premise of ensuring the heat dissipation of the hot end of the semiconductor refrigeration structure 4, and the continuous refrigeration effect of the drawer 3 can be improved.
If the working mode is the non-flash freezing mode, the step of blowing the drawer 3 by the freezing air duct 14 comprises the following steps:
in step S41, the first air blowing port 11 is controlled to be closed, and the second air blowing port 12 is opened.
Obtain refrigeration plant 100 is in the non-mode of flashing freeze, makes air door 13 be in the horizontality, closes first blowing mouth 11 and opens second blowing mouth 12 simultaneously, makes cooling air duct 61 close, and freezing wind channel 14 only bloies drawer 3 for quick-freeze drawer 3 normally uses as freezing drawer 3, satisfies user's ordinary user demand.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a refrigeration plant, refrigeration plant includes the casing, the casing is formed with freezing wind channel, have the refrigeration cavity in the casing, its characterized in that, be provided with in the refrigeration cavity:
a drawer;
the cold end of the semiconductor refrigeration structure is abutted against the drawer;
the cold storage box is internally filled with a cold storage agent, the hot end of the semiconductor refrigeration structure is abutted against the cold storage box, and the freezing air duct is used for blowing air to the cold storage box and/or the drawer;
the refrigeration cavity is internally provided with a support table connected with the shell, the support table is provided with a cooling air channel, the shell is also provided with a first air blowing opening for communicating the refrigeration air channel with the cooling air channel and a second air blowing opening communicated with the refrigeration cavity, and the second air blowing opening is positioned above the drawer; and an air door is arranged between the first air blowing opening and the second air blowing opening, and the air door is hinged to the shell and used for opening the first air blowing opening and the second air blowing opening simultaneously or closing one of the first air blowing opening and the second air blowing opening and opening the other one of the first air blowing opening and the second air blowing opening.
2. The refrigeration appliance according to claim 1, wherein the drawer is supported on the support base, and the cold storage box is disposed in the cooling air duct.
3. The refrigeration device according to claim 1 or 2, wherein a heat conducting plate is further arranged between the drawer and the cold end of the semiconductor refrigeration structure, one side of the heat conducting plate is in surface contact with the cold end of the semiconductor refrigeration structure, and the other side of the heat conducting plate is in surface contact with the drawer.
4. The refrigeration equipment according to claim 3, further comprising a heat insulation plate disposed between the heat conduction plate and the cold storage box, wherein the heat insulation plate is provided with a mounting groove, and the semiconductor refrigeration structure is mounted in the mounting groove.
5. A control method of a refrigeration apparatus, which is applied to the refrigeration apparatus according to any one of claims 1 to 4, the control method of the refrigeration apparatus comprising:
acquiring the working mode of the refrigeration equipment;
judging whether the working mode is a flash freezing mode or not;
if the working mode is a flash freezing mode, the freezing air duct is controlled to blow air to the cold storage box;
and if the working mode is a non-flash freezing mode, controlling the freezing air duct to blow air to the drawer.
6. The control method of a refrigerating apparatus as set forth in claim 5, wherein the step of controlling the freezing duct to blow air to the cold storage box if the operation mode is a flash freezing mode comprises:
controlling to close the second air blowing port and open the first air blowing port; or,
and controlling to open the first air blowing opening and the second air blowing opening simultaneously.
7. The control method of a refrigerating apparatus as recited in claim 6, wherein said second blowing port is closed and said first blowing port is opened; or, the step of opening the first blowing port and the second blowing port simultaneously comprises:
acquiring the temperature of the coolant;
judging whether the temperature of the coolant is higher than a preset temperature or not;
if the temperature of the coolant is higher than the preset temperature, closing the second air blowing port and opening the first air blowing port;
and if the temperature of the coolant is not higher than the preset temperature, the step of simultaneously opening the first air blowing port and the second air blowing port is executed.
8. The method as claimed in claim 5, wherein the step of controlling the freezing air duct to blow air to the drawer if the operation mode is a non-flash freezing mode comprises:
and controlling to close the first air blowing opening and open the second air blowing opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440264.4A CN113701422B (en) | 2020-05-21 | 2020-05-21 | Refrigeration equipment and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010440264.4A CN113701422B (en) | 2020-05-21 | 2020-05-21 | Refrigeration equipment and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113701422A CN113701422A (en) | 2021-11-26 |
| CN113701422B true CN113701422B (en) | 2022-10-04 |
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| CN202010440264.4A Active CN113701422B (en) | 2020-05-21 | 2020-05-21 | Refrigeration equipment and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20230228465A1 (en) * | 2022-01-20 | 2023-07-20 | Haier Us Appliance Solutions, Inc. | Refrigerator appliance with container cooling cell |
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