CN219607487U - Energy-storage type energy-saving defrosting system and refrigerator - Google Patents
Energy-storage type energy-saving defrosting system and refrigerator Download PDFInfo
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- CN219607487U CN219607487U CN202321100923.5U CN202321100923U CN219607487U CN 219607487 U CN219607487 U CN 219607487U CN 202321100923 U CN202321100923 U CN 202321100923U CN 219607487 U CN219607487 U CN 219607487U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The utility model discloses an energy-storage type energy-saving defrosting system and a refrigerator, and aims to solve the technical problem that the existing refrigerator is low in cold energy stored in the refrigerator so as to influence the preservation of foods in a storage bin. The energy-storage type energy-saving defrosting system mainly comprises a compressor, a condenser, a first evaporator, a second evaporator and a cold accumulation device, wherein the condenser is connected with a throttling device, the throttling device is respectively connected with the first evaporator and the cold accumulation device through a split tee joint, the cold accumulation device is connected with the second evaporator, the first evaporator and the second evaporator are connected in parallel, and the second evaporator and the cold accumulation device are connected in series; the compressor is externally wrapped with a heat storage device, and the heat storage device is connected with a water tank through a gravity heat pipe. According to the utility model, the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold accumulation device are arranged in series, so that the temperature environments of the freezing chamber and the cold accumulation chamber can be distinguished, and the purposes of energy conservation and fresh preservation are achieved.
Description
Technical Field
The utility model relates to the technical field of refrigeration of refrigerators, in particular to an energy-storage type energy-saving defrosting system and a refrigerator.
Background
Refrigerators have become a necessity for most households in modern life. However, the problem of defrosting has been a hot spot of concern in the refrigeration industry, and when the temperature of the evaporator in the refrigerator is lower than the dew point of the air in the refrigerator, water vapor in the refrigerator condenses and frosts on the surface of the evaporator. On one hand, frosting reduces the air fluid area, increases the circulation resistance and reduces the heat exchange capacity of the evaporator; on the other hand, the heat transfer resistance between the surface of the evaporator fin and the air is increased, and the refrigerating performance is reduced.
The utility model discloses an energy-storage type air-cooled frostless refrigerator and a defrosting method thereof (patent document number is CN 210980490U), wherein the disclosed refrigerator comprises a refrigerator shell, a storage chamber, a phase-change energy-storage cold storage module, an air supply channel, an evaporation chamber, an air return channel, an air-cooled evaporator, a blower, a compressor, an air-cooled condenser, a throttling device, a condensing fan, an energy-storage type heat pipe defrosting module, a defrosting water pipe and a water receiving disc; the air outlet end of the air supply channel is communicated with the air supply port of the storage chamber, the air inlet end is communicated with the evaporation chamber, and the air inlet end is provided with a first electric air valve; the air return channel is arranged between the evaporation chamber and the storage chamber, one end of the air return channel is communicated with an air outlet section of the evaporation chamber, a second electric air valve is arranged at the communication position, the other end of the air return channel is communicated with an air inlet section of the evaporation chamber, and the middle of the air return channel is communicated with an air return opening of the storage chamber; the air-cooled evaporator and the blower are positioned in the evaporating chamber, and the air-cooled evaporator, the compressor, the air-cooled condenser and the throttling device are connected in series through a refrigerant pipe to form refrigeration circulation.
However, in the process of implementing the technical solution in the embodiment of the present utility model, the present inventors have found that at least the following technical problems exist in the above technology:
1. because the phase-change energy storage cold accumulation module is arranged on the backboard of the refrigerator shell, the phase-change energy storage cold accumulation module absorbs cold energy of cold air flow sent into the storage chamber by the evaporator, so that the cold energy stored by the phase-change energy storage cold accumulation module is low, and meanwhile, freezing and fresh-keeping of foods stored in the storage chamber can be influenced.
2. The refrigerator freezing chamber and the fresh-keeping chamber are not accurately divided, and the quantity of the delivered cold quantity is not accurately distinguished, so that the heat storage module cannot fully exert the energy-saving function of the heat storage module, the heat in the condensed water after defrosting cannot be fully utilized, and the resource waste is caused.
The information disclosed in this background section is only for enhancement of understanding of the background of the disclosure and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art that is well known to a person skilled in the art.
Disclosure of Invention
The inventors found through research that: the existing refrigerator has the problems that the stored cold quantity is low due to the fact that the phase change energy storage cold storage module is arranged on the back plate of the refrigerator shell, the preservation of food in a storage bin in a storage room is affected, and the stored cold quantity can be effectively improved by connecting the first evaporator and the second evaporator in parallel and connecting the second evaporator and the cold storage device in series, so that the freshness of the food is guaranteed.
In view of at least one of the above technical problems, the present disclosure provides an energy-storage type energy-saving defrosting system and a refrigerator, wherein the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold storage device are arranged in series, so that the gas cooling capacity of the cold storage chamber is lower than that of the freezing chamber, and the temperature environments of the freezing chamber and the cold storage chamber can be distinguished, thereby achieving the purpose of energy saving and fresh keeping.
According to one aspect of the disclosure, there is provided an energy-saving defrosting system comprising a compressor, a condenser, a first evaporator, a second evaporator and a cold accumulation device, wherein the condenser is connected with a throttling device, the throttling device is respectively connected with the first evaporator and the cold accumulation device through a split tee, the cold accumulation device is connected with the second evaporator, the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold accumulation device are arranged in series;
the compressor is externally wrapped with a heat storage device, and the heat storage device is connected with a water tank through a gravity heat pipe.
In some embodiments of the present disclosure, a water pan is disposed above the water tank, and a first solenoid valve is disposed between the water pan and the water tank.
In some embodiments of the present disclosure, the water tank is connected with a gas tank, a steam outlet is provided on the gas tank, and a second electromagnetic valve is provided at the steam outlet.
In some embodiments of the present disclosure, the first evaporator is connected to a first blower and the second evaporator is connected to a second blower.
In some embodiments of the present disclosure, the first evaporator and the second evaporator are connected to the compressor through a converging tee so that the refrigerant in the condenser enters the compressor.
In some embodiments of the present disclosure, the thermal storage device includes at least one thermal insulation material layer, and the thermal storage material used for the thermal insulation material layer has a phase transition temperature of 30 to 50 ℃.
In some embodiments of the present disclosure, the gravity assisted heat pipe includes a condensing section, an insulating section, and an evaporating section, which is a unidirectional thermal diode that can only transfer heat along the condensing section to the evaporating section.
According to another aspect of the present disclosure, there is provided an energy-saving refrigerator, which mainly includes the energy-saving defrosting system; the first evaporator is connected with the refrigerating chamber air supply outlet, and the second evaporator is connected with the refrigerating chamber air supply outlet;
the refrigerating chamber air supply outlet is provided with a first electric air valve, the refrigerating chamber air supply outlet is provided with a second electric air valve, a third electric air valve is arranged between the first evaporator and the second evaporator, the refrigerating chamber is provided with a gas outlet, and the gas outlet is provided with a fourth electric air valve.
In some embodiments of the disclosure, the refrigerator shell is surrounded by a thermal insulation material for preventing heat loss;
the freezing chamber and the refrigerating chamber are respectively wrapped with a first cold accumulation material and a second cold accumulation material.
In some embodiments of the present disclosure, the phase transition temperature of the first cold storage material is-18 to-12 ℃;
the phase transition temperature of the second cold storage material is 0-10 ℃.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
1. according to the utility model, the first evaporator and the second evaporator are arranged in parallel, the second evaporator and the cold accumulation device are arranged in series and are used for distinguishing the refrigerating chamber from the freezing chamber, so that the first evaporator is communicated with the freezing chamber, and the second evaporator is communicated with the refrigerating chamber, so that the gas cold quantity of the refrigerating chamber is lower than that of the freezing chamber, and the temperature environments of the freezing chamber and the refrigerating chamber can be distinguished, thereby achieving the purposes of energy conservation and fresh keeping.
2. According to the heat storage device, the heat storage device is wrapped outside the compressor, and the heat storage device is connected with the water tank through the gravity heat pipe, so that the heat exchange of the compressor and the condenser can be enhanced, the heat dissipation pressure of the condenser and the compressor is reduced, the heat preservation effect is further realized, the dissipation of redundant heat is prevented, the resource is saved, the energy is saved, and the consumption is reduced.
Drawings
Fig. 1 is a schematic structural diagram of a defrosting system according to an embodiment of the utility model.
Fig. 2 is a schematic diagram of the system circulation structure in the refrigeration mode according to an embodiment of the present utility model.
Fig. 3 is a schematic diagram of air flow in a cooling mode according to an embodiment of the present utility model.
Fig. 4 is a schematic diagram of air flow in a defrost mode according to an embodiment of the present utility model.
In the above figures, 1 is a first evaporator, 2 is a second evaporator, 3 is a water pan, 4 is a first electromagnetic valve, 5 is a water tank, 6 is a heat-conducting plate, 7 is a condenser, 8 is a compressor, 9 is a heat storage device, 10 is a gravity heat pipe, 11 is a gas storage tank, 12 is a second electromagnetic valve, 13 is a steam outlet, 14 is a second blower, 15 is a first blower, 16 is a throttling device, 17 is an air port, 18 is a freezing chamber, 19 is a refrigerating chamber air outlet, 20 is a refrigerating chamber, 21 is a refrigerating chamber air supply port, 22 is a cold storage device, 23 is a freezing chamber air supply port, 24 is a refrigerator housing, 25 is a second electric air valve, 26 is a first electric air valve, 27 is a third electric air valve, and 28 is a fourth electric air valve.
Detailed Description
In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. The terms "first," "second," and the like, herein do not denote any order or importance, but rather are used to distinguish one element from another. The terms "connected," "coupled," and "connected," as used herein, unless specifically indicated otherwise, are intended to encompass both direct and indirect connections (couplings).
The unit modules (components, structures, mechanisms) and sensors and other devices according to the following examples are commercially available products unless otherwise specified.
The embodiment of the utility model solves the technical problem that the existing refrigerator has lower stored cold energy so as to influence the preservation of foods in a storage bin in a storage room by providing the energy-saving defrosting system, and ensures that the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold storage device are arranged in series so as to effectively improve the stored cold energy.
The technical scheme in the embodiment of the utility model aims to solve the problem of resource waste caused by low cold storage capacity, and the overall thought is as follows: the condenser is connected with a throttling device, the throttling device is respectively connected with the first evaporator and the cold accumulation device through a shunt tee joint, the cold accumulation device is connected with the second evaporator, the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold accumulation device are arranged in series; the compressor is externally wrapped with a heat storage device, and the heat storage device is connected with a water tank through a gravity heat pipe.
The first evaporator and the second evaporator are arranged in parallel, the second evaporator and the cold accumulation device are arranged in series, the refrigerating chamber and the freezing chamber are distinguished, the first evaporator is communicated with the freezing chamber, the second evaporator is communicated with the refrigerating chamber, the gas cooling capacity of the refrigerating chamber is lower than that of the freezing chamber, the temperature environments of the freezing chamber and the refrigerating chamber can be distinguished, and the purposes of saving energy and keeping fresh are achieved.
In order to better understand the technical scheme of the present utility model, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment discloses an energy-saving defrosting system, referring to fig. 1, mainly comprising a compressor 8, a condenser 7, a first evaporator 1, a second evaporator 2 and a cold accumulation device 22, wherein the condenser 7 is connected with a throttling device 16, the throttling device 16 is respectively connected with the first evaporator 1 and the cold accumulation device 22 through a split-flow tee joint, the cold accumulation device 22 is connected with the second evaporator 2, the first evaporator 1 and the second evaporator 2 are arranged in parallel, and the second evaporator 2 and the cold accumulation device 22 are arranged in series; the first evaporator 1 and the second evaporator 2 are connected to the compressor 8 through a converging tee so that the refrigerant in the condenser 7 enters the compressor 8. The first evaporator 1 and the second evaporator 2 are arranged in parallel, the second evaporator 2 and the cold accumulation device 22 are arranged in series, the refrigerating chamber 20 and the freezing chamber 18 are distinguished, the first evaporator 1 is communicated with the freezing chamber 18, the second evaporator 2 is communicated with the refrigerating chamber 20, the gas cooling capacity of the refrigerating chamber 20 is lower than that of the freezing chamber 18, the temperature environments of the freezing chamber 18 and the refrigerating chamber 20 can be distinguished, and the purposes of energy conservation and fresh keeping are achieved.
In addition, the compressor 8 is externally wrapped with a heat storage device 9, and the heat storage device 9 is connected with the water tank 5 through a gravity assisted heat pipe 10. The heat exchange can be enhanced on the compressor 8 and the condenser 7 respectively, the heat dissipation pressure of the condenser 7 and the compressor 8 is reduced, the heat preservation effect is further realized, the dissipation of redundant heat is prevented, the resource saving is facilitated, and the heat conducting plate 6 is arranged between the condenser 7 and the water tank 5.
Further, a water receiving disc 3 is arranged above the water tank 5, and a first electromagnetic valve 4 is arranged between the water receiving disc 3 and the water tank 5. The water tank 5 is connected with a gas storage tank 11, a steam outlet 13 is arranged on the gas storage tank 11, and a second electromagnetic valve 12 is arranged at the steam outlet 13. The first evaporator 1 is connected to a first blower 15, and the second evaporator 2 is connected to a second blower 14, and air is sent to the freezing chamber 18 and the refrigerating chamber 20 through the first blower 15 and the second blower 14.
In addition, the heat storage device 9 includes at least one layer of heat insulating material, and the phase transition temperature of the heat storage material used for the heat insulating material layer is 30-50 ℃. The gravity assisted heat pipe 10 includes a condensing section, an insulating section, and an evaporating section, which are unidirectional thermal diodes that can only transfer heat along the condensing section to the evaporating section. The gravity assisted heat pipe 10 has no liquid suction core, and can return to the evaporation section by the power of condensate, so that no external power is needed.
Example two
The embodiment discloses an energy-saving refrigerator, which comprises an energy-saving defrosting system, wherein the energy-saving defrosting system is in the first embodiment, the first evaporator 1 is connected with the refrigerating chamber air supply outlet 23, and the second evaporator 2 is connected with the refrigerating chamber air supply outlet 21; the first electric air valve 26 is arranged at the air supply opening 23 of the freezing chamber, the second electric air valve 25 is arranged at the air supply opening 21 of the refrigerating chamber, the third electric air valve 27 is arranged between the first evaporator 1 and the second evaporator 2, the freezing chamber 18 is provided with a gas outlet, and the fourth electric air valve 28 is arranged at the gas outlet.
In addition, the outside of the refrigerator shell 24 is wrapped with a thermal insulation material for preventing heat loss, the refrigerator shell 24 is a metal or plastic shell, and the thermal insulation sections of the cold storage device 22, the heat storage device 9, the gravity heat pipe 10, the air storage tank 11 and the water tank 5 are all provided with the thermal insulation material, so as to prevent heat loss to the environment. The freezing chamber 18 and the refrigerating chamber 20 are respectively wrapped with a first cold storage material and a second cold storage material. The phase transition temperature of the first cold storage material is-18 to-12 ℃; the phase transition temperature of the second cold storage material is 0-10 ℃.
As shown in fig. 2 and 3, in the cooling mode operation, the first, second and fourth electric air valves 26, 2525, 28 are opened, and the first, second and third electromagnetic valves 4, 12, 27 are closed. The condensed high-pressure liquid of the refrigerant flows out of the condenser 7, enters the throttling device 16 for throttling, the refrigerant is converted into a low-temperature low-pressure gas-liquid two-phase mixed state and flows out of the throttling device 16, the refrigerant is split through the split tee joint, one part of the refrigerant enters the first evaporator 1, the other part of the refrigerant firstly enters the cold accumulation device 22 for accumulating cold for the cold accumulation device 22, and the cold-accumulated refrigerant enters the second evaporator 2. The refrigerant in the first evaporator 1 and the second evaporator 2 evaporates in the evaporators, absorbs heat from the ambient air, reduces the temperature of the ambient air to a low-temperature gas, and the low-temperature low-pressure refrigerant flows out of the first evaporator 1 and the second evaporator 2, passes through a merging tee, merges into the compressor 8. Around the compressor 8 is a heat storage device 9, wherein the heat storage material can absorb the heat of the compressor 8 to store heat, and the heat in the heat storage device 9 can be transferred to the water tank 5 through the gravity heat pipe 10. The high-temperature and high-pressure refrigerant flows out of the compressor 8 into the condenser 7, and the refrigerant is cooled and condensed in the condenser 7 and gives off heat. The released heat is transferred to the water tank 5 by the heat-conducting plate 6, and the heat of the compressor 8 and the condenser 7 is converged in the water tank 5, so that condensed water generated after defrosting in the water tank 5 is converted from a liquid state to a gas state and is stored in the gas storage tank 11.
The low-temperature gas generated by the first evaporator 1 is transferred into the freezing chamber 18 through the freezing chamber air supply opening 23 under the action of the first blower 15, and then the gas is discharged out of the freezing chamber 18 through the fourth electric air valve 28, so that the cold energy is recycled. The low-temperature air generated by the second evaporator 2 is transferred to the refrigerating chamber through the refrigerating chamber air supply opening 21 under the action of the second air blower 14, and then the air is discharged out of the refrigerating chamber 20 through the air outlet opening, and the air outlet opening 17 is used for supplementing the air quantity.
As shown in fig. 4, the first, second, and third electric dampers 26, 25, and 28 are closed and the first, second, and third solenoid valves 4, 12, and 27 are opened during the defrosting mode operation. The high-temperature vapor in the gas storage tank 11 flows out from the vapor outlet, the second blower 14 is operated to flow the high-temperature vapor through the second evaporator 2, and the high-temperature vapor flows into the first evaporator 1 through the third electric air valve 27 after flowing out of the second evaporator 2, so that the first evaporator 11 and the second evaporator 2 are defrosted, and the residual gas after defrosting can be discharged from the air port. The condensed water generated after defrosting enters the water receiving disc 3 and flows into the water tank 5 through the first electromagnetic valve 4. At the same time as the defrosting process, the cold storage device 22 discharges cold to maintain the temperature in the freezing compartment 18 and the refrigerating compartment 20.
While certain preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (10)
1. The energy-storage type energy-saving defrosting system comprises a compressor, a condenser, a first evaporator, a second evaporator and a cold accumulation device, and is characterized in that the condenser is connected with a throttling device, the throttling device is respectively connected with the first evaporator and the cold accumulation device through a shunt tee joint, the cold accumulation device is connected with the second evaporator, the first evaporator and the second evaporator are arranged in parallel, and the second evaporator and the cold accumulation device are arranged in series;
the compressor is externally wrapped with a heat storage device, and the heat storage device is connected with a water tank through a gravity heat pipe.
2. The energy-saving defrosting system according to claim 1, wherein a water receiving tray is arranged above the water tank, and a first electromagnetic valve is arranged between the water receiving tray and the water tank.
3. The energy-saving defrosting system according to claim 1, wherein the water tank is connected with a gas storage tank, a steam outlet is arranged on the gas storage tank, and a second electromagnetic valve is arranged at the steam outlet.
4. The energy storage and conservation defrosting system according to claim 1 wherein the first evaporator is connected with a first blower and the second evaporator is connected with a second blower.
5. The energy-saving defrosting system according to claim 1, wherein the first evaporator and the second evaporator are connected to the compressor through a confluence tee so that the refrigerant in the condenser enters the compressor.
6. The energy-saving defrosting system according to claim 1, wherein the heat storage device comprises at least one heat-insulating material layer, and the phase transition temperature of the heat storage material used for the heat-insulating material layer is 30-50 ℃.
7. The energy storage and conservation defrosting system of claim 1 wherein the gravity assisted heat pipe comprises a condensing section, an insulating section and an evaporating section which is a unidirectional thermal diode that can transfer heat only along the condensing section to the evaporating section.
8. An energy-storage type energy-saving refrigerator, comprising a refrigerator shell, a refrigerating chamber and a freezing chamber, and being characterized by comprising the energy-storage type energy-saving defrosting system as claimed in any one of the above claims 1-7;
the first evaporator is connected with the refrigerating chamber air supply outlet, and the second evaporator is connected with the refrigerating chamber air supply outlet;
the refrigerating chamber air supply outlet is provided with a first electric air valve, the refrigerating chamber air supply outlet is provided with a second electric air valve, a third electric air valve is arranged between the first evaporator and the second evaporator, the refrigerating chamber is provided with a gas outlet, and the gas outlet is provided with a fourth electric air valve.
9. The energy-saving refrigerator of claim 8, wherein the heat insulation material for preventing heat loss is wrapped around the outer side of the refrigerator case;
the freezing chamber and the refrigerating chamber are respectively wrapped with a first cold accumulation material and a second cold accumulation material.
10. The energy-saving refrigerator of claim 9, wherein the phase transition temperature of the first cold storage material is-18 to-12 ℃;
the phase transition temperature of the second cold storage material is 0-10 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100923.5U CN219607487U (en) | 2023-05-09 | 2023-05-09 | Energy-storage type energy-saving defrosting system and refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321100923.5U CN219607487U (en) | 2023-05-09 | 2023-05-09 | Energy-storage type energy-saving defrosting system and refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219607487U true CN219607487U (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321100923.5U Active CN219607487U (en) | 2023-05-09 | 2023-05-09 | Energy-storage type energy-saving defrosting system and refrigerator |
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| Country | Link |
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| CN (1) | CN219607487U (en) |
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2023
- 2023-05-09 CN CN202321100923.5U patent/CN219607487U/en active Active
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