CN210980490U - Energy storage type air-cooling frost-free refrigerator - Google Patents
Energy storage type air-cooling frost-free refrigerator Download PDFInfo
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- CN210980490U CN210980490U CN201921841532.2U CN201921841532U CN210980490U CN 210980490 U CN210980490 U CN 210980490U CN 201921841532 U CN201921841532 U CN 201921841532U CN 210980490 U CN210980490 U CN 210980490U
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Abstract
The utility model relates to an energy storage type air-cooled frostless refrigerator, which comprises a refrigerator shell, a storage chamber, a phase change energy storage cold accumulation module, an air supply channel, an evaporation chamber, an air return channel, an air-cooled evaporator, an air feeder, 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 pan; the air outlet end of the air supply channel is communicated with an air supply outlet of the storage chamber, the air inlet end of the air supply channel is communicated with the evaporation chamber, and the air inlet end of the air supply channel 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 the 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 the 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 evaporation chamber, and the air-cooled evaporator, the compressor, the air-cooled condenser and the throttling device are connected in series through refrigerant pipes to form a refrigeration cycle. The refrigerator is easy to realize, and has good defrosting and energy saving effects.
Description
Technical Field
The utility model relates to a refrigerator technical field, concretely relates to energy storage formula forced air cooling frostless refrigerator.
Background
Refrigerators have become a necessity for most households in modern life. In recent years, air-cooled frostless refrigerators achieve the purpose of refrigeration by forcing air in the refrigerators to convect by using fans, so that storage chambers (refrigerating chambers and freezing chambers) have the advantages of no frosting and the like, and the share of the market is increased year by year. The conventional defrosting method for the air-cooled frostless refrigerator is that a heater is used for heating and melting the frost on an evaporator regularly, the rated power of a defrosting heating pipe is about 2 times of the refrigerating power of a compressor, and the defrosting energy consumption is high. Because the surface temperature of the electric heater is higher, certain fire hazard exists. In addition, during defrosting, the temperature fluctuation of the storage compartment is large due to the off of the vapor compression refrigeration cycle.
Disclosure of Invention
An object of the utility model is to provide an energy storage formula forced air cooling frost-free refrigerator, this refrigerator easily realizes, and the defrosting is energy-conserving effectual.
In order to achieve the above object, the utility model adopts the following technical scheme: an energy storage type air-cooled frostless refrigerator comprises a refrigerator shell, at least 1 storage chamber, a phase change energy storage cold accumulation module, an air supply channel, an evaporation chamber, an air return channel, an air-cooled evaporator, an air feeder, 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 pan; the refrigerator shell is provided with an air inlet and an air outlet, the storeroom is provided with an air supply outlet, an air return inlet and the phase change energy storage cold accumulation module, the air outlet end of the air supply channel is communicated with the storeroom through the air supply outlet, the air inlet end of the air supply channel is communicated with the evaporation chamber, and the air inlet end of the air supply channel is provided with a first electric air valve to control the opening and closing of the air supply channel; the air return channel is arranged between the evaporation chamber and the storage chamber, one end of the air return channel is communicated with the 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 the air inlet section of the evaporation chamber, and the middle of the air return channel is communicated with the storage chamber through an air return port; the air-cooled evaporator and the air feeder are positioned in the evaporation chamber, and the air-cooled evaporator, the compressor, the air-cooled condenser and the throttling device are sequentially connected in series through refrigerant pipes to form a refrigeration cycle; one end of the defrosting water pipe is connected to the bottom plate of the evaporation chamber, and the other end of the defrosting water pipe is connected to the water receiving disc.
Further, energy storage formula heat pipe defrosting module includes first gravity heat pipe, a plurality of second gravity heat pipe and phase change energy storage defrosting module, phase change energy storage defrosting module adopts phase change material to inlay in honeycomb structure's container, the container back is equipped with first blind hole, openly is equipped with a plurality of second blind holes, the evaporation zone of first gravity heat pipe is located air-cooled condenser's air outlet department, and the condensation segment inserts in the first blind hole, the evaporation zone of second gravity heat pipe inserts in the second blind hole, and the condensation segment is located air-cooled evaporator's air outlet department, is equipped with electronic two-way valve on the adiabatic section between evaporation zone and the condensation segment.
Furthermore, the first gravity heat pipe and the second gravity heat pipe form an included angle of 30-45 ℃ with the horizontal plane, so that the liquid refrigerant flows back to the bottom under the action of gravity.
Furthermore, the phase-change energy storage cold accumulation module is embedded in the metal plate by adopting a phase-change material.
Further, the phase change material is an inorganic hydrated salt or an organic-inorganic composite phase change material.
Further, the phase change temperature of the phase change material of the phase change energy storage defrosting module is 30-35 ℃.
Further, when the storage chamber is a refrigerating chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module is 0-10 ℃, and when the storage chamber is a freezing chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module is-18-12 ℃.
Furthermore, the refrigerator shell is a metal or plastic shell, and the heat insulation sections of the refrigerator shell, the phase change energy storage defrosting module, the first gravity heat pipe and the second gravity heat pipe are all provided with heat insulation materials around the outer side of the refrigerator shell, so that heat is prevented from being dissipated to the environment.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses the unpowered high-efficient heat transfer characteristic of gravity heat pipe and the big characteristics of phase change material energy storage density have fully been combined, an energy storage formula forced air cooling frost-free refrigerator is provided, this energy storage formula forced air cooling frost-free refrigerator, can pass through the unpowered storage of gravity heat pipe with vapor compression refrigeration cycle exhaust heat in phase change energy storage defrosting module, use during the confession defrosting, owing to need not to set up the defrosting of electric heater, stop the conflagration hidden danger, only need open the fan during the defrosting, effectively reduced the defrosting energy consumption, there is the effect that is showing to improving energy utilization. The cold quantity provided by the phase-change energy storage cold accumulation module of the storeroom can also reduce the temperature fluctuation of the storeroom in the defrosting process, and can relieve the deterioration of stored food in the power failure, thereby having strong practicability and wide application prospect.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention.
Fig. 2 is a schematic front view of an energy-storage heat pipe defrosting module according to an embodiment of the present invention.
Fig. 3 is a schematic top view of an energy storage type heat pipe defrosting module according to an embodiment of the present invention.
Fig. 4 is a schematic front view of the phase change energy storage defrosting module according to the embodiment of the present invention.
In the figure, 1-a refrigerator shell, 2-a storage chamber, 3-a phase change energy storage cold accumulation module, 4-an air supply channel, 5-an evaporation chamber, 6-an air return channel, 7-an air cooling evaporator, 8-an air blower, 9-a compressor, 10-an air cooling condenser, 11-a throttling device, 12-a condensing fan, 13-an energy storage type heat pipe defrosting module, 14-an air inlet, 15-an air outlet, 16-an air supply outlet, 17-an air return inlet, 18-a defrosting water pipe, 19-a water pan, 131-a first gravity heat pipe, 132-a second gravity heat pipe, 133-a phase change energy storage defrosting module, 134-a first blind hole, 135-a second blind hole, V1-a first electric air valve, V2-a second electric air valve and V3-an electric two-way valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides an energy storage formula forced air cooling frost-free refrigerator, as shown in figure 1, including refrigerator casing 1, 1 at least storeroom 2, phase change energy storage cold-storage module 3, air supply channel 4, evaporating chamber 5, return air passageway 6, air-cooled evaporimeter 7, forced draught blower 8, compressor 9, air-cooled condenser 10, throttling arrangement 11, condensation fan 12, energy storage formula heat pipe defrosting module 13, defrosting water pipe 18 and water collector 19.
Be equipped with air intake 14 and air exit 15 on the backplate of refrigerator casing 1, be equipped with supply-air outlet 16 on the roof of storeroom 2, be equipped with return air inlet 17 on the bottom plate, set up phase change energy storage cold-storage module 3 on the backplate, air supply channel 4's air-out end and storeroom 2 pass through supply-air outlet 16 intercommunication, air inlet end and evaporating chamber 5 intercommunication, and are equipped with first electronic blast gate V1 at air supply channel 4's air inlet end to control air supply channel's switch. The return air channel 6 is arranged between the evaporation chamber 5 and the storage chamber 2, one end of the return air channel 6 is communicated with the air outlet section of the evaporation chamber 5, a second electric air valve V2 is arranged at the communication position, the other end of the return air channel is communicated with the air inlet section of the evaporation chamber 5, the middle of the return air channel is communicated with the storage chamber 2 through a return air inlet 17, and the return air inlet 17 is an electric return air inlet. The air-cooled evaporator 7 and the blower 8 are positioned in the evaporation chamber 5, and the air-cooled evaporator 7, the compressor 9, the air-cooled condenser 10 and the throttling device 11 are sequentially connected in series through refrigerant pipes to form a refrigeration cycle. One end of the defrosting water pipe 18 is connected to the bottom plate of the evaporation chamber 5, and the other end is connected to the water pan 19.
As shown in fig. 2-4, the energy-storage type heat pipe defrosting module 13 includes a first gravity heat pipe 131, a plurality of second gravity heat pipes 132 and a phase-change energy-storage defrosting module 133, the phase-change energy-storage defrosting module 133 is embedded in a metal or plastic container with a honeycomb structure by using a phase-change material, a first blind hole 134 is disposed in the center of the back of the container, a plurality of second blind holes 135 are disposed around the front of the container, an evaporation section of the first gravity heat pipe 131 is located at an air outlet of the air-cooled condenser 10, a condensation section is inserted into the first blind hole, an evaporation section of the second gravity heat pipe 132 is inserted into the second blind hole, a condensation section is located at an air outlet of the air-cooled evaporator 7, and an electric two-way valve V3 is disposed on a heat insulation section between. The first gravity heat pipe 131 and the second gravity heat pipe 132 are each composed of an evaporation section, a heat insulation section, and a condensation section. The heat-insulating section is an intermediate section and is used for connecting the evaporation section with the heat-insulating section, and the heat-insulating section is used for sending the refrigerant steam of the evaporation section to the condensation section and sending the liquid refrigerant of the condensation section back to the evaporation section. The middle section is wrapped by heat-insulating material and insulated from the outside. The first gravity heat pipe 131 and the second gravity heat pipe 132 form an included angle of 30-45 ℃ with the horizontal plane, so that the liquid refrigerant flows back to the bottom under the action of gravity. The flowing working mediums in the first gravity heat pipe 131 and the second gravity heat pipe 132 are refrigerants such as R410, R134a and the like. The phase-change energy storage cold accumulation module 3 is embedded in the metal plate by adopting a phase-change material.
In this embodiment, the phase change materials of the phase change energy storage defrosting module 133 and the phase change energy storage cold accumulation module 3 are inorganic hydrated salt or organic-inorganic composite phase change material. The phase change temperature of the phase change material of the phase change energy storage defrosting module 133 is 30-35 ℃. When the storage chamber is a refrigerating chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module 3 is 0-10 ℃, and when the storage chamber is a freezing chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module 3 is-18-12 ℃.
In this embodiment, the refrigerator housing 1 is a metal or plastic housing, and the refrigerator housing, the phase change energy storage defrosting module, the heat insulation section of the first gravity heat pipe 131, the heat insulation section of the second gravity heat pipe 132, and the peripheries of the outer sides of the refrigerator housing, the phase change energy storage defrosting module, and the heat insulation sections are all provided with heat insulation materials to prevent heat from being dissipated to the environment. The heat-insulating material is polyurethane, polystyrene, glass wool or rubber and plastic.
During the steam compression refrigeration cycle of the refrigerator, cold air from the air-cooled evaporator 7 is sent to the air supply outlet 16 through the air supply channel 4, the cold air from the air supply outlet 16 exchanges heat with food in the storage chamber 2 and the phase-change material in the phase-change energy storage and cold accumulation module 3 to cool the food, cold energy is stored in the phase-change material, the temperature of the phase-change material is reduced and is solidified into a solid phase-change material, the temperature of the air after heat exchange is increased, the air returns to the evaporation chamber 5 through the air return inlet 17 and the air return channel 16 and is cooled by the air-cooled evaporator 7 again, the process is repeated, and the refrigerator realizes the cooling of the food in the storage chamber 2 and the cold accumulation of the; the condensing fan 12 introduces air outside the refrigerator into the refrigerator through the air inlet 14 to exchange heat with the air-cooled condenser 12, the refrigerant in the evaporation section of the first gravity heat pipe 131 absorbs heat in the exhaust air of the air-cooled condenser 12 and becomes a gaseous refrigerant, the gaseous refrigerant enters the condensation section and is cooled by the phase-change material of the phase-change energy-storage defrosting module 133 to become a liquid refrigerant, the temperature of the phase-change material rises and is melted into a liquid phase-change material, the heat is stored, the liquid refrigerant flows back to the evaporation section again by depending on the gravity of the liquid refrigerant to complete a cycle, and the exhaust air of the air-cooled condenser 12 is exhausted outside the refrigerator through the exhaust outlet 15. The above process is repeated, and the phase change energy storage defrosting module 133 stores heat.
The utility model discloses a defrosting work process of energy storage formula forced air cooling frost-free refrigerator does: when the refrigerator control system monitors that defrosting is to be performed, the first electric air valve V1 is closed, the second electric air valve V2, the electric two-way valve V3 and the blower 8 are opened, the refrigerant in the evaporation section of the second gravity heat pipe 132 of the energy storage type heat pipe defrosting module 13 absorbs the heat of the phase change material in the phase change energy storage defrosting module 133, the refrigerant is changed into a gaseous refrigerant, the gaseous refrigerant enters the condensation section, is cooled by cold air introduced by the blower 8, is changed into a liquid refrigerant, the temperature of the cold air is increased, the cold air is conveyed to the surface of the air-cooled evaporator 7 through the air return channel 6, the frost layer of the air-cooled evaporator 7 is heated, defrosting is performed, defrosting water flows into the water receiving tray 19 through the defrosting water pipe 18, and the liquid refrigerant flows back to the evaporation section again by depending on the gravity of. The above process is repeated, and the refrigerator realizes defrosting. In the defrosting process, the phase-change material in the phase-change energy storage cold accumulation module 3 emits cold energy to reduce the temperature fluctuation of the storeroom. After the refrigerator control system judges that the defrosting is finished, the first electric air valve V1 is opened, the second electric air valve V2, the electric two-way valve V3 and the blower are closed, and the next operation period is started.
Above is the utility model discloses a preferred embodiment, all rely on the utility model discloses the change that technical scheme made, produced functional action does not surpass the utility model discloses during technical scheme's scope, all belong to the utility model discloses a protection scope.
Claims (8)
1. An energy storage type air-cooled frost-free refrigerator is characterized by comprising a refrigerator shell, at least 1 storage chamber, a phase change energy storage and cold accumulation module, an air supply channel, an evaporation chamber, an air return channel, an air-cooled evaporator, an air feeder, 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 pan; the refrigerator shell is provided with an air inlet and an air outlet, the storeroom is provided with an air supply outlet, an air return inlet and the phase change energy storage cold accumulation module, the air outlet end of the air supply channel is communicated with the storeroom through the air supply outlet, the air inlet end of the air supply channel is communicated with the evaporation chamber, and the air inlet end of the air supply channel is provided with a first electric air valve to control the opening and closing of the air supply channel; the air return channel is arranged between the evaporation chamber and the storage chamber, one end of the air return channel is communicated with the 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 the air inlet section of the evaporation chamber, and the middle of the air return channel is communicated with the storage chamber through an air return port; the air-cooled evaporator and the air feeder are positioned in the evaporation chamber, and the air-cooled evaporator, the compressor, the air-cooled condenser and the throttling device are sequentially connected in series through refrigerant pipes to form a refrigeration cycle; one end of the defrosting water pipe is connected to the bottom plate of the evaporation chamber, and the other end of the defrosting water pipe is connected to the water receiving disc.
2. The energy storage type air-cooled frostless refrigerator according to claim 1, wherein the energy storage type heat pipe defrosting module comprises a first gravity heat pipe, a plurality of second gravity heat pipes and a phase change energy storage defrosting module, the phase change energy storage defrosting module is embedded in a container with a honeycomb structure by adopting a phase change material, a first blind hole is arranged on the back surface of the container, a plurality of second blind holes are arranged on the front surface of the container, an evaporation section of the first gravity heat pipe is positioned at an air outlet of the air-cooled condenser, a condensation section of the first gravity heat pipe is inserted into the first blind hole, an evaporation section of the second gravity heat pipe is inserted into the second blind hole, the condensation section is positioned at an air outlet of the air-cooled evaporator, and an electric two-way valve is arranged on a heat insulation section between.
3. The energy storage type air-cooling frost-free refrigerator of claim 2, wherein the first gravity heat pipe and the second gravity heat pipe form an included angle of 30-45 ℃ with the horizontal plane, so that the liquid refrigerant flows back to the bottom due to the action of gravity.
4. The energy-storage type air-cooling frost-free refrigerator of claim 1, wherein the phase-change energy-storage cold-accumulation module is embedded in a metal plate by using a phase-change material.
5. The energy storage type air-cooled frostless refrigerator of claim 2 or 4, wherein the phase change material is an inorganic hydrated salt or an organic-inorganic composite phase change material.
6. The energy-storage type air-cooling frost-free refrigerator according to claim 2, wherein the phase-change temperature of the phase-change material of the phase-change energy-storage defrosting module is 30-35 ℃.
7. The energy storage type air-cooled frostless refrigerator according to claim 4, wherein when the storage chamber is a refrigerating chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module is 0-10 ℃, and when the storage chamber is a freezing chamber, the phase change temperature of the phase change material of the phase change energy storage cold accumulation module is-18 to-12 ℃.
8. The energy-storing air-cooled frost-free refrigerator of claim 2, wherein the refrigerator housing is a metal or plastic housing, and the refrigerator housing, the phase-change energy-storing defrosting module, and the heat-insulating sections of the first and second gravity heat pipes are all provided with heat-insulating materials around the outer sides thereof to prevent heat from being dissipated into the environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841532.2U CN210980490U (en) | 2019-10-30 | 2019-10-30 | Energy storage type air-cooling frost-free refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921841532.2U CN210980490U (en) | 2019-10-30 | 2019-10-30 | Energy storage type air-cooling frost-free refrigerator |
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| Publication Number | Publication Date |
|---|---|
| CN210980490U true CN210980490U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921841532.2U Expired - Fee Related CN210980490U (en) | 2019-10-30 | 2019-10-30 | Energy storage type air-cooling frost-free refrigerator |
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| CN (1) | CN210980490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645760A (en) * | 2019-10-30 | 2020-01-03 | 福建工程学院 | Energy storage type air-cooled frost-free refrigerator and defrosting method thereof |
-
2019
- 2019-10-30 CN CN201921841532.2U patent/CN210980490U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645760A (en) * | 2019-10-30 | 2020-01-03 | 福建工程学院 | Energy storage type air-cooled frost-free refrigerator and defrosting method thereof |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200710 Termination date: 20201030 |
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| CF01 | Termination of patent right due to non-payment of annual fee |