CN219955763U - Phase-change cold-storage refrigerator - Google Patents
Phase-change cold-storage refrigerator Download PDFInfo
- Publication number
- CN219955763U CN219955763U CN202320952200.1U CN202320952200U CN219955763U CN 219955763 U CN219955763 U CN 219955763U CN 202320952200 U CN202320952200 U CN 202320952200U CN 219955763 U CN219955763 U CN 219955763U
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- Prior art keywords
- phase
- refrigerator
- wall
- cold accumulation
- change
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- 238000009825 accumulation Methods 0.000 claims abstract description 53
- 239000012782 phase change material Substances 0.000 claims abstract description 35
- 230000008859 change Effects 0.000 claims abstract description 34
- 238000007710 freezing Methods 0.000 claims abstract description 14
- 230000008014 freezing Effects 0.000 claims abstract description 14
- 229920001903 high density polyethylene Polymers 0.000 claims abstract description 6
- 239000004700 high-density polyethylene Substances 0.000 claims abstract description 6
- 238000003682 fluorination reaction Methods 0.000 claims abstract description 4
- 238000002844 melting Methods 0.000 claims description 27
- 230000008018 melting Effects 0.000 claims description 27
- 230000007704 transition Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 6
- 230000035939 shock Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 5
- DCAYPVUWAIABOU-UHFFFAOYSA-N hexadecane Chemical compound CCCCCCCCCCCCCCCC DCAYPVUWAIABOU-UHFFFAOYSA-N 0.000 description 12
- YCOZIPAWZNQLMR-UHFFFAOYSA-N heptane - octane Natural products CCCCCCCCCCCCCCC YCOZIPAWZNQLMR-UHFFFAOYSA-N 0.000 description 8
- BGHCVCJVXZWKCC-UHFFFAOYSA-N tetradecane Chemical compound CCCCCCCCCCCCCC BGHCVCJVXZWKCC-UHFFFAOYSA-N 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 3
- 230000006866 deterioration Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- HHXYJYBYNZMZKX-UHFFFAOYSA-N 3,4:15,16-diepoxy-7-oxo-13(16),14-clerodadien-20,12-olide-(3alpha,4alpha)-form Natural products C12CCC3C4(C)CCCC(C)(C)C4CCC3(C)C1(C)CCC1C2(C)CCC1C(=C)C HHXYJYBYNZMZKX-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a phase-change cold-storage refrigerator, which comprises a refrigerator body, wherein a freezing chamber, a refrigerating chamber, a temperature control chamber, a compressor, a condenser, a cold-storage evaporator, a fan, an air supply channel, an air inlet and an air outlet are arranged in the refrigerator body, the inner wall of one or more parts of the four parts of the freezing chamber, the refrigerating chamber, the temperature control chamber and the shell of the cold accumulation type evaporator is provided with a phase change cold accumulation module, the phase change cold accumulation module comprises a shell made of high-density polyethylene, a phase change material is packaged in the shell, the inner wall of the shell is the inner wall subjected to fluorination treatment, and the outer wall of the shell is provided with a plurality of grooves. The phase-change cold storage refrigerator disclosed by the utility model has the advantages that: the uniformity of the temperature distribution in the refrigerator can be improved, the start-stop frequency of the compressor is reduced, the service life of the compressor is effectively prolonged, the power utilization efficiency of the refrigerator is improved, and the power consumption of the refrigerator is reduced; the cold insulation aging of the refrigerator can be prolonged when the power is off, and the energy consumption is reduced; can improve the thermal environment and the thermal shock resistance of the refrigerator.
Description
Technical Field
The utility model belongs to the field of refrigeration equipment, and particularly relates to a phase-change cold storage refrigerator.
Background
Refrigerators are one of the most commonly used home appliances, and are closely related to food safety and health in people's daily life. With the development of technology and the continuous progress of society, people pursue higher and higher quality of life, and the fresh-keeping requirement on food also becomes higher. On the other hand, the refrigerator has become one of the highest energy consumption home appliances as a home appliance requiring 24 hours of continuous operation. According to statistics, 8000 more ten thousand refrigerators are produced in China every year, the quantity of the refrigerators is about 3 hundred million, and the energy consumption of the refrigerators accounts for 40-50% of domestic electricity. Therefore, improving the cold insulation and fresh keeping performances of the household refrigerator and improving the energy saving level of the household refrigerator is a main development trend of the current refrigerator industry.
The current refrigerators are all refrigerated by a compressor, and the cold energy generated by an evaporator is transferred into the refrigerator by heat conduction and air convection of the inner wall of the refrigerator. Because the energy storage density of air is very low, the thermal shock resistance of the refrigerator is very weak, and the problems of food deterioration and putrefaction easily occur in a short time after power failure.
Disclosure of Invention
The utility model aims to solve the technical problems of providing a phase-change cold storage refrigerator aiming at overcoming the defects of the prior art, aiming at improving the thermal environment and the thermal shock resistance of the interior of the refrigerator, prolonging the cold insulation aging of the refrigerator when the power is off, improving the power utilization efficiency of the refrigerator and reducing the energy consumption.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a phase transition cold-storage refrigerator, includes the box, the box in be equipped with freezer, cold-storage chamber, control by temperature change room, compressor, condenser, cold-storage evaporator, fan, air supply passageway, air intake and air outlet, the inner wall of one or more of these four parts of shell of freezer, cold-storage chamber, control by temperature change room, cold-storage evaporator be provided with the phase transition cold-storage module, the phase transition cold-storage module include the casing that high density polyethylene made, the casing in package have phase change material, the inner wall of casing be the inner wall through the fluorination treatment, the outer wall of casing be equipped with a plurality of recesses.
The phase change cold accumulation module is arranged on the inner wall of one or more parts of the freezing chamber, the refrigerating chamber, the temperature control chamber and the shell of the cold accumulation evaporator of the refrigerator, so that the thermal environment and the thermal shock resistance of the interior of the refrigerator can be improved, the cold insulation aging of the refrigerator can be prolonged when the power is off, the power utilization efficiency of the refrigerator can be improved, and the energy consumption can be reduced.
The phase change cold accumulation module comprises a shell made of high-density polyethylene (HDPE), and the inner wall of the shell is subjected to fluorination treatment, so that leakage of a phase change material can be prevented; the outer wall of the shell is provided with a plurality of grooves so as to prevent the phase change cold accumulation module from deforming in the long-term temperature change process and increase the heat transfer area of the shell.
Preferably, the outer wall of the shell is provided with a plurality of long grooves, the long grooves are arranged in parallel, and a plurality of grooves are arranged between two adjacent long grooves. The multi-channel long grooves play a role in enhancing the shell, and meanwhile, the heat transfer area of the shell can be further increased, and the heat transfer efficiency is improved.
Preferably, the casing is provided with a filling opening, and after the phase change material is filled into the casing through the filling opening, the filling opening is heat-sealed.
Preferably, the inner wall of one or more parts of the four parts of the freezing chamber, the refrigerating chamber, the temperature control chamber and the shell of the cold accumulation type evaporator is provided with a concave cavity, and the phase change cold accumulation module is embedded and fixed in the concave cavity. Through the mode installation phase change cold accumulation module, easy dismounting is convenient for the maintenance and the change of phase change cold accumulation module.
Preferably, the inner wall of the freezing chamber is provided with a phase-change cold accumulation module, and the melting point of the phase-change material packaged in the phase-change cold accumulation module arranged on the inner wall of the freezing chamber is-22-20 ℃. The phase change material may be 22.4wt.% sodium chloride aqueous solution with a melting point peak of-21 ℃.
Preferably, the refrigeratingThe inner wall of the refrigerating chamber is provided with a phase-change cold accumulation module, and the melting point of the phase-change material packaged in the phase-change cold accumulation module arranged on the inner wall of the refrigerating chamber is 0-2 ℃. The phase change material can be selected from 80vol.% n-tetradecane (C 14 H 30 ) With 20vol.% of n-hexadecane C 16 H 34 Peak of melting point is 2.4 ℃.
Preferably, the temperature control room is a cooling room, the inner wall of the temperature control room is provided with a phase change cold accumulation module, and the melting point of the phase change material packaged in the phase change cold accumulation module arranged on the inner wall of the temperature control room is-2-12 ℃. The phase change material can be n-pentadecane C 15 H 32 The peak melting point was 10 ℃. The phase change material can also be 30vol.% n-tetradecane C 14 H 30 With 70vol.% of n-hexadecane C 16 H 34 The peak melting point was 10.6 ℃.
Preferably, the temperature control compartment is a food storage compartment, the inner wall of the temperature control compartment is provided with a phase change cold accumulation module, and the melting point of the phase change material packaged in the phase change cold accumulation module arranged on the inner wall of the temperature control compartment is 11-18 ℃. The phase change material can be n-hexadecane C 16 H 34 The peak melting point was 18 ℃.
Preferably, the inner wall of the shell of the cold accumulation type evaporator is provided with a phase change cold accumulation module, and the melting point of the phase change material packaged in the phase change cold accumulation module arranged on the inner wall of the shell of the cold accumulation type evaporator is-28-21 ℃. The phase change material may be selected from 39.7wt.% potassium phosphate (K 3 PO 4 ) The melting point peak of the aqueous solution was-24 ℃.
Compared with the prior art, the phase-change cold storage refrigerator has the following advantages:
(1) The uniformity of the temperature distribution in the refrigerator can be improved, the start-stop frequency of the compressor is reduced, the service life of the compressor is effectively prolonged, the power utilization efficiency of the refrigerator is improved, and the power consumption of the refrigerator is reduced;
(2) The cold insulation aging of the refrigerator can be prolonged when the power is cut off, so that rapid deterioration and spoilage of food are avoided, the health and safety of the refrigerator environment are improved, and the energy consumption is reduced;
(3) The refrigerator can improve the thermal environment and the thermal shock resistance of the refrigerator, and can reduce the temperature fluctuation of the refrigerator when the door is opened and food is put in.
Drawings
FIG. 1 is a schematic side view of an interior of a phase change cold storage refrigerator according to an embodiment;
FIG. 2 is a schematic front view of the interior of a phase change cold storage refrigerator according to an embodiment;
FIG. 3 is a schematic cross-sectional view of a cold storage evaporator in a phase change cold storage refrigerator according to an embodiment;
fig. 4 is an external schematic view of a phase change cold storage module according to an embodiment.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
The phase change cold accumulation refrigerator of the embodiment, as shown in fig. 1-4, comprises a box body 1, wherein a freezing chamber 2, a refrigerating chamber 3, a temperature control room 4, a compressor 5, a condenser 6, a cold accumulation evaporator 7, a fan 8, an air supply channel 9, an air inlet 10 and an air outlet 20 are arranged in the box body 1, the inner walls of the four parts of the freezing chamber 2, the refrigerating chamber 3, the temperature control room 4 and a shell 11 of the cold accumulation evaporator 7 are all provided with a phase change cold accumulation module, the phase change cold accumulation module comprises a shell 12 made of high-density polyethylene, a phase change material is packaged in the shell 12, the inner wall of the shell 12 is a fluorinated inner wall, a plurality of grooves 13 are formed in the outer wall of the shell 12, a plurality of long grooves 14 are formed in the outer wall of the shell 12, the long grooves 14 are arranged in parallel, a plurality of grooves 13 are distributed between two adjacent long grooves 14, a filling opening 15 is formed in the shell 12, and after the phase change material is filled into the shell 12 through the filling opening 15, the filling opening 15 is heat-sealed.
In this embodiment, the inner walls of the four parts of the freezing chamber 2, the refrigerating chamber 3, the temperature control chamber 4 and the shell 11 of the cold accumulation type evaporator 7 are respectively provided with a concave cavity 16, and the phase change cold accumulation module is embedded and fixed in the concave cavity 16.
The melting point of the phase change material encapsulated in the phase change cold storage module 17 arranged on the inner wall of the freezing chamber 2 is-22-20 ℃. The phase change material is 22.4wt.% sodium chloride aqueous solution, and the melting point peak value is-21 ℃.
The melting point of the phase change material encapsulated in the phase change cold storage module 18 arranged on the inner wall of the refrigerating chamber 3 is 0-2 ℃. The phase change material is selected from 80vol.% of n-tetradecane (C 14 H 30 ) With 20vol.% of n-hexadecane C 16 H 34 The peak melting point was 2.4 ℃.
When the temperature control chamber 4 is a cooling chamber, the melting point of the phase change material packaged in the phase change cold storage module 19 arranged on the inner wall of the temperature control chamber 4 is-2-12 ℃. The phase-change material is n-pentadecane C 15 H 32 The peak melting point was 10 ℃. Alternatively, the phase change material is selected from 30vol.% n-tetradecane C 14 H 30 With 70vol.% of n-hexadecane C 16 H 34 The peak melting point was 10.6 ℃.
When the temperature control chamber 4 is a food storage chamber, the melting point of the phase change material packaged in the phase change cold storage module 19 arranged on the inner wall of the temperature control chamber 4 is 11-18 ℃. The phase-change material is n-hexadecane C 16 H 34 The peak melting point was 18 ℃.
The melting point of the phase change material encapsulated in the phase change cold storage module 21 arranged on the inner wall of the shell 11 of the cold storage type evaporator 7 is-28-21 ℃. The phase change material is 39.7wt.% potassium phosphate (K) 3 PO 4 ) The melting point peak of the aqueous solution was-24 ℃. In fig. 3, 22 is a pipe, and 23 is a fin.
By arranging the phase change cold accumulation module on the inner walls of the freezing chamber 2, the refrigerating chamber 3, the temperature control chamber 4 and the shell 11 of the cold accumulation type evaporator 7 of the refrigerator, the thermal environment and the thermal shock resistance of the interior of the refrigerator can be improved, the cold insulation aging of the refrigerator can be prolonged when the power is off, the power utilization efficiency of the refrigerator is improved, and the energy consumption is reduced.
Claims (9)
1. The utility model provides a phase transition cold-storage refrigerator, includes the box, the box in be equipped with freezer, cold-storage chamber, control by temperature change room, compressor, condenser, cold-storage evaporator, fan, air supply passageway, air intake and air outlet, its characterized in that, the inner wall of one or more of these four parts of shell of freezer, cold-storage chamber, control by temperature change room, cold-storage evaporator be provided with the phase transition cold-storage module, the phase transition cold-storage module include the casing that high density polyethylene made, the casing in the encapsulation have phase change material, the inner wall of casing be the inner wall through the fluorination treatment, the outer wall of casing be equipped with a plurality of recesses.
2. The phase-change cold accumulation refrigerator as in claim 1, wherein the outer wall of the housing is provided with a plurality of long grooves, the long grooves are arranged in parallel, and a plurality of grooves are arranged between two adjacent long grooves.
3. The phase-change cold accumulation refrigerator as set forth in claim 1, wherein said casing is provided with a filling port, and said filling port is heat-sealed after filling said phase-change material into said casing through said filling port.
4. The phase-change cold accumulation refrigerator as claimed in claim 1, wherein the inner wall of one or more of the four parts of the freezing chamber, the refrigerating chamber, the temperature control chamber and the shell of the cold accumulation evaporator is provided with a concave cavity, and the phase-change cold accumulation module is embedded and fixed in the concave cavity.
5. The phase-change cold accumulation refrigerator as in claim 1, wherein the inner wall of the freezing chamber is provided with a phase-change cold accumulation module, and the melting point of the phase-change material encapsulated in the phase-change cold accumulation module arranged on the inner wall of the freezing chamber is-22-20 ℃.
6. The phase-change cold accumulation refrigerator as in claim 1, wherein the inner wall of the refrigerating chamber is provided with a phase-change cold accumulation module, and the melting point of the phase-change material encapsulated in the phase-change cold accumulation module is 0-2 ℃.
7. The phase-change cold accumulation refrigerator as in claim 1, wherein the temperature control room is a cooling room, the inner wall of the temperature control room is provided with a phase-change cold accumulation module, and the melting point of the phase-change material encapsulated in the phase-change cold accumulation module arranged on the inner wall of the temperature control room is-2-12 ℃.
8. The phase-change cold accumulation refrigerator as in claim 1, wherein the temperature control room is a food storage room, the inner wall of the temperature control room is provided with a phase-change cold accumulation module, and the melting point of the phase-change material encapsulated in the phase-change cold accumulation module arranged on the inner wall of the temperature control room is 11-18 ℃.
9. The phase-change cold accumulation refrigerator as in claim 1, wherein the phase-change cold accumulation module is arranged on the inner wall of the shell of the cold accumulation type evaporator, and the melting point of the phase-change material encapsulated in the phase-change cold accumulation module is-28-21 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320952200.1U CN219955763U (en) | 2023-04-25 | 2023-04-25 | Phase-change cold-storage refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320952200.1U CN219955763U (en) | 2023-04-25 | 2023-04-25 | Phase-change cold-storage refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219955763U true CN219955763U (en) | 2023-11-03 |
Family
ID=88544801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320952200.1U Active CN219955763U (en) | 2023-04-25 | 2023-04-25 | Phase-change cold-storage refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219955763U (en) |
-
2023
- 2023-04-25 CN CN202320952200.1U patent/CN219955763U/en active Active
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| GR01 | Patent grant |