CN212205117U - Refrigerator and refrigerating system thereof - Google Patents
Refrigerator and refrigerating system thereof Download PDFInfo
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- CN212205117U CN212205117U CN202020386642.0U CN202020386642U CN212205117U CN 212205117 U CN212205117 U CN 212205117U CN 202020386642 U CN202020386642 U CN 202020386642U CN 212205117 U CN212205117 U CN 212205117U
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- heat
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- refrigerant
- evaporator
- liquid medium
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Abstract
The utility model provides a refrigerator and refrigerating system thereof, refrigerating system includes: a refrigeration circuit for circulating a refrigerant, which has a compressor and an evaporator, and in which the refrigerant is evaporated while absorbing heat when passing through the evaporator; and a defrosting pipe for circulating a liquid medium, having a heat absorbing part and a heat emitting part; the heat absorption part is arranged on the compressor so as to enable the liquid medium in the heat absorption part to absorb the heat released by the compressor in the running state of the compressor; the heat release portion sets up on the evaporimeter, and the liquid medium after the heat absorption portion is heated by the compressor flows through heat release portion under the compressor machine state to heat the evaporimeter, thereby make the utility model discloses a refrigerator can utilize the heat of refrigerating system itself to change the frost for the evaporimeter, has improved refrigerating system's energy utilization efficiency, and need not to add the frost heater strip, has avoided the unfavorable influence that produces the inside temperature of refrigerator when using external heat source.
Description
Technical Field
The utility model relates to a refrigeration field especially relates to a refrigerator and refrigerating system thereof.
Background
The refrigerator utilizes a refrigeration system to provide cooling for the storage compartment. During operation of the refrigeration system, the evaporator may experience frost formation due to heat exchange with the ambient air flow. In part of the prior art, a defrosting heating wire is arranged on an evaporator to heat the evaporator in a shutdown state of a refrigeration system, so that the evaporator is defrosted.
However, when the defrosting heating wire operates, the defrosting heating wire needs to be electrified, which is equivalent to introducing an external heat source into a refrigeration system, and the energy utilization rate is low.
Therefore, how to utilize the heat of the refrigeration system to defrost the evaporator to improve the energy utilization efficiency of the refrigeration system becomes a technical problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to provide a refrigerator and a refrigeration system thereof that at least partially solve the above problems.
The utility model discloses a further purpose utilizes the heat of refrigerating system itself in the refrigerator to defrost for the evaporimeter to improve refrigerating system's energy utilization efficiency.
A further object of the present invention is to reduce or avoid the impact on the refrigeration process while improving the efficiency of energy utilization of the refrigeration system in the refrigerator.
According to an aspect of the present invention, there is provided a refrigeration system for a refrigerator, including: a refrigeration circuit for circulating a refrigerant, which has a compressor and an evaporator, and in which the refrigerant is evaporated while absorbing heat when passing through the evaporator; and a defrosting pipe for circulating a liquid medium, having a heat absorbing part and a heat emitting part; the heat absorption part is arranged on the compressor so as to enable the liquid medium in the heat absorption part to absorb the heat released by the compressor in the running state of the compressor; the heat releasing part is set on the evaporator, and the liquid medium heated by the compressor via the heat absorbing part flows through the heat releasing part in the compressor stopping state to heat the evaporator.
Optionally, the heat absorbing part is a can disposed on a peripheral wall of the compressor.
Optionally, the heat absorbing part is cylindrical and sleeved on the compressor.
Alternatively, the heat radiating portion is a capillary tube wound around an evaporation tube of the evaporator.
Alternatively, the diameter of the tube hole of the heat radiating portion is 1mm to 8 mm.
Alternatively, the volume of the heat absorbing part is larger than the volume of the heat radiating part.
Optionally, the defrosting pipeline further comprises: a pump, wherein a suction inlet of the pump is communicated with a discharge outlet of the heat absorption part, and a discharge outlet of the pump is communicated with a suction inlet of the heat release part; and the pump is used for being controlled to be started in the shutdown state of the compressor so as to promote the liquid medium in the heat absorption part to flow to the heat release part.
Optionally, the defrosting pipeline further comprises: and the heat insulation valve is arranged between the discharge port of the heat radiation part and the suction port of the heat radiation part and is used for being controlled to be closed in the running state of the compressor.
Alternatively, the heat absorbing part and the heat radiating part are made of copper or aluminum
According to the utility model discloses an on the other hand still provides a refrigerator, include: a box body; the refrigeration system of any one of the above claims, disposed within the cabinet.
The utility model discloses a refrigerator and refrigerating system thereof, wherein, be provided with the refrigeration circuit that is used for circulating the refrigerant in the refrigerating system and be used for circulating the frost pipeline of liquid medium, be provided with the heat absorption portion in the frost pipeline and set up the exothermic portion on the evaporimeter, and the heat absorption portion installs on the compressor, the liquid medium after the heat absorption portion is heated flows through exothermic portion under the compressor machine-halt state to heat the evaporimeter, thereby make the utility model discloses a refrigerator can utilize the heat of refrigerating system itself to change the frost for the evaporimeter, has improved refrigerating system's energy utilization efficiency, and need not to add the frost heater strip, has avoided the unfavorable influence that produces the inside temperature of refrigerator when using external heat source.
Further, the utility model discloses a refrigerator and refrigerating system thereof is provided with pump and heat insulating valve in refrigerating system's the defrosting pipeline. Wherein the pump is configured to be controlled to be turned on in a shutdown state of the compressor to promote the liquid medium in the heat absorbing part to flow to the heat radiating part. The thermal-insulated valve sets up between the discharge port of heat release portion and the sunction inlet of heat absorption portion to the configuration is controlled under compressor running state and is closed, thereby can obstruct the heat and carry out the heat transfer through liquid medium between heat release portion and heat absorption portion, makes the utility model discloses a refrigerator can utilize the heat that refrigerating system self produced for the evaporimeter heating, can reduce or avoid the influence to refrigeration process again.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a refrigeration system in a refrigerator according to an embodiment of the present invention.
Detailed Description
Fig. 1 is a schematic diagram of a refrigerator 10 according to an embodiment of the present invention.
The refrigerator 10 may generally include: a cabinet 110 and a refrigeration system 200 disposed in the cabinet 110. The case 110 has at least one storage compartment 111 formed therein.
Fig. 2 is a schematic diagram of a refrigeration system 200 in the refrigerator 10 according to an embodiment of the present invention.
The refrigeration system 200 may include: a refrigeration circuit for circulating refrigerant and a defrosting pipeline for circulating liquid medium.
The refrigeration circuit may generally comprise: a compressor 211, a condenser 212, and an evaporator 213. A refrigerating chamber for installing the evaporator 213 may be further formed in the cabinet 110. The refrigeration compartment may be disposed on the back, top, sides, or bottom of the storage compartment 111. In the operating state of the compressor 211, the refrigerant is condensed while releasing heat while passing through the condenser 212, and is evaporated while passing through the evaporator 213 while absorbing heat. The refrigeration circuit may use the refrigerant to absorb heat in the evaporator 213 to change phase to supply cold to the storage compartment 111.
The refrigerator 10 of the present embodiment may be an air-cooled refrigerator 10, and the air-cooled refrigerator 10 cools the storage compartment 111 by air circulation. In some alternative embodiments, the refrigerator 10 may also be a direct-cooling refrigerator 10, a mix-cooling refrigerator 10, or any other refrigerator 10, and is not limited in detail herein.
The defrosting pipeline at least comprises: a heat absorbing part 221, a heat radiating part 222, and a pump 223.
And a defrosting pipe having a heat absorbing part 221 and a heat radiating part 222. The heat absorbing part 221 is provided on the compressor 211. The heat radiating unit 222 is provided in the evaporator 213. The liquid medium heated by the compressor 211 through the heat absorption part 221 flows through the heat radiation part 222 in a state where the compressor 211 is stopped, to heat the evaporator 213. The liquid medium can not flow in the defrosting pipeline, and can also circularly flow in the defrosting pipeline under the action of power.
When the compressor 211 is operated, the refrigerant may be compressed into a high-temperature and high-pressure gaseous state by the compressor 211, so that the temperature of the compressor 211 is increased to become a high-temperature portion in the refrigeration circuit. The high temperature portion may serve as a heat source of the heat sink 221. After the heat absorption portion 221 absorbs the heat released by the compressor 211, the temperature of the liquid medium inside the compressor 211 is raised, and the liquid medium can flow through the heat release portion 222 in the shutdown state of the compressor 211 to further heat the evaporator 213, so that the refrigerator 10 of the embodiment can utilize the heat of the refrigeration system 200 to defrost the evaporator 213, the energy utilization efficiency of the refrigeration system 200 is improved, and a defrosting heating wire is not required to be additionally arranged, thereby avoiding the adverse effect on the internal temperature of the refrigerator 10 when an external heat source is used for defrosting the evaporator 213, and reducing or avoiding the temperature of the storage compartment 111 from generating large fluctuation to a certain extent.
When the compressor 211 is operated, the liquid medium in the defrosting pipe may not flow, the liquid medium in the heat absorbing part 221 absorbs heat released from the refrigerant in the compressor 211, the temperature is increased, and the temperature of the liquid medium in the heat absorbing part 221 may be higher than that of the liquid medium in the heat radiating part 222. When the compressor 211 is in a stop state, the liquid medium in the heat absorption part 221 flows into the heat release part 222 under the action of power, and transfers heat to the evaporator 213, so that the evaporator 213 can be heated and defrosted.
The heat absorbing unit 221 is a tank and is provided on the peripheral wall of the compressor 211. The refrigerant releases heat when compressed inside the compressor 211 to cause the peripheral wall of the compressor 211 to increase in temperature. The heat absorbing part 221 may have a cylindrical shape and is fitted over the compressor 211. In alternative embodiments, the heat sink 221 may be sleeved around the entire circumference of the compressor 211. In other alternative embodiments, the heat absorbing part 221 may be sleeved outside a portion of the compressor 211, wherein the portion may be, but is not limited to, a refrigerant discharge port. Alternatively, the heat absorbing unit 221 may be disposed in contact with the peripheral wall of the compressor 211.
The heat absorbing part 221 is sleeved on the compressor 211, so that the contact area between the heat absorbing part 221 and the peripheral wall of the compressor 211 can be increased, the heat transfer effect between the heat absorbing part 221 and the compressor 211 is enhanced, the liquid medium in the heat absorbing part 221 can absorb a large amount of heat in the running state of the compressor 211, and a large amount of heat can be transferred to the evaporator when the liquid medium flows through the heat releasing part 222.
The heat radiating section 222 is a capillary tube. The diameter of the tube hole of the heat radiating portion 222 is 1mm to 8mm, and may be, for example, but not limited to, 1mm, 3mm, 4mm, 5mm, 6mm, or 8 mm.
The heat radiating portion 222 may be wound around an evaporation tube of the evaporator 213. In other alternative embodiments, the heat radiating portions 222 may be wound around the evaporation tubes and/or fins provided on the evaporator 213.
The heat radiating portion 222 is wound around the evaporator 213, so that the contact area between the heat radiating portion 222 and the evaporator 213 can be increased, the heat transfer effect between the heat radiating portion 222 and the evaporator 213 can be enhanced, the liquid medium in the heat absorbing portion 221 can transfer a large amount of heat to the evaporator 213 when flowing through the heat radiating portion 222, and the defrosting efficiency of the evaporator 213 can be improved.
The heat absorption part 221 is arranged on the compressor 211, so that the compressor 211 can transfer the heat of the compressor 211 to the heat absorption part 221, the heat dissipation effect of the compressor 211 is improved to a certain extent, the operation stability of the compressor 211 is improved, and the refrigeration efficiency of a refrigeration loop is improved.
In the refrigerator 10 of the present embodiment, two independent circulation loops, i.e., the refrigeration loop and the defrosting loop, are disposed in the refrigeration system 200, so that the flow processes of the refrigerant and the liquid medium are not interfered with each other, and the refrigeration system 200 has both good refrigeration efficiency and good defrosting efficiency.
The volume of the heat absorbing part 221 is larger than that of the heat releasing part 222, so that the volume of the liquid medium contained in the heat absorbing part 221 is larger than that of the liquid medium contained in the heat releasing part 222, and the heat accumulated in the liquid medium in the heat absorbing part 221 in the running state of the compressor 211 is enough to melt the frost layer of the evaporator 213, thereby ensuring the heating effect of the heat releasing part 222.
The heat absorbing portion 221 and the heat radiating portion 222 may be made of copper or aluminum. The liquid medium may be, but is not limited to, an alcohol, silicone, or ionic liquid having a high specific heat capacity. The freezing point of the liquid medium is lower than-35 ℃ and the boiling point is higher than 60 ℃.
A pump 223, a suction port of the pump 223 is communicated with a discharge port of the heat radiating portion 222, a discharge port of the pump 223 is communicated with a suction port of the heat absorbing portion 221, and the pump 223 is controlled to be opened in a stop state of the compressor 211 to promote the liquid medium in the heat absorbing portion 221 to flow to the heat radiating portion 222. The pump 223 is controlled to be turned on to circulate the liquid medium in the defrosting pipe. The liquid medium in the heat absorbing unit 221 flows to the heat radiating unit 222 by the pump 223, and the heat is indirectly transferred to the evaporator 213 through the heat radiating unit 222. When the pump 223 is in the off state, the liquid medium may not flow in the defrosting pipe. The pump 223 may be a micro water pump 223, but is not limited thereto.
In some optional embodiments, the defrosting pipeline may further include: and a heat insulation valve disposed between the discharge port of the heat radiation part 222 and the suction port of the heat absorption part 221 for controlled closing in an operation state of the compressor 211. After the heat insulation valve is closed, the passage between the heat releasing part 222 and the heat absorbing part 221 in the defrosting pipeline can be cut off to hinder the heat from being transferred between the heat releasing part 222 and the heat absorbing part 221 through the liquid medium, and the liquid medium with higher temperature can be reduced or avoided from flowing into the heat releasing part 222, so that the refrigerator 10 can utilize the heat generated by the refrigeration system 200 to heat the evaporator 213, and simultaneously, the influence on the refrigeration process can be reduced or avoided.
After the compressor 211 is started, the refrigerant circulates in the refrigeration circuit, the pump 223 is in a stop state, the heat insulation valve can be in a closed state, and the liquid medium does not flow in the defrosting circuit. The refrigerant releases heat under the action of the compressor 211, so that the temperature of the peripheral wall of the compressor 211 rises, and the liquid medium in the heat absorption part 221 absorbs the heat released by the peripheral wall of the compressor 211. The refrigerator 10 may start the defrosting mode according to actual needs. For example, whether the defrosting mode needs to be activated may be determined according to the temperature or heat exchange efficiency of the evaporator 213 in the operating state of the compressor 211. After the compressor 211 is stopped, the refrigerator 10 may start the defrost mode. In the stopped state of the compressor 211, the refrigerant may not flow in the refrigeration circuit. The heat-insulating valve can be controlled to open, so that an open channel is formed between the discharge port of the heat-radiating portion 222 and the suction port of the heat-absorbing portion 221, and the liquid medium in the heat-absorbing portion 221 is allowed to flow through the heat-radiating portion 222. The pump 223 may be controlled to be turned on to induce the liquid medium to flow in the defrosting pipe, so that the liquid medium in the heat absorbing part 221 flows through the heat releasing part 222 and transfers heat to the evaporator 213.
In the refrigerator 10 and the refrigeration system 200 of the embodiment, a refrigeration circuit for circulating a refrigerant and a defrosting pipeline for circulating a liquid medium are arranged in the refrigeration system 200, a heat absorption portion 221 and a heat release portion 222 arranged on the evaporator 213 are arranged in the defrosting pipeline, the heat absorption portion 221 is installed on the compressor 211, and the liquid medium heated by the heat absorption portion 221 flows through the heat release portion 222 in a shutdown state of the compressor 211 to heat the evaporator 213, so that the refrigerator 10 of the embodiment can utilize the heat of the refrigeration system 200 to defrost the evaporator 213, the energy utilization efficiency of the refrigeration system 200 is improved, no defrosting heating wire needs to be added, and adverse effects on the internal temperature of the refrigerator 10 when an external heat source is applied are avoided.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A refrigeration system for a refrigerator, comprising:
a refrigeration circuit for circulating a refrigerant, the refrigeration circuit having a compressor and an evaporator, and the refrigerant being subjected to heat absorption evaporation while flowing through the evaporator; and
a defrosting pipeline for circulating a liquid medium, which is provided with a heat absorption part and a heat release part; and is
The heat absorption part is arranged on the compressor so that the liquid medium in the heat absorption part absorbs the heat released by the compressor in the running state of the compressor;
the heat radiating part is arranged on the evaporator, and the liquid medium heated by the compressor through the heat absorbing part flows through the heat radiating part in the shutdown state of the compressor to heat the evaporator.
2. The refrigerant system as set forth in claim 1, wherein said refrigerant supply is a refrigerant supply
The heat absorbing part is a tank and is arranged on the peripheral wall of the compressor.
3. The refrigerant system as set forth in claim 2, wherein said refrigerant supply is a refrigerant supply
The heat absorption part is cylindrical and is sleeved on the compressor.
4. The refrigerant system as set forth in claim 1, wherein said refrigerant supply is a refrigerant supply
The heat releasing part is a capillary tube and is wound on an evaporation tube of the evaporator.
5. The refrigerant system as set forth in claim 4, wherein said refrigerant is a refrigerant
The diameter of the tube hole of the heat radiating part is 1mm to 8 mm.
6. The refrigerant system as set forth in claim 1, wherein said refrigerant supply is a refrigerant supply
The volume of the heat absorbing part is larger than that of the heat radiating part.
7. The refrigeration system of claim 1, wherein the defrost line further comprises:
a pump, a suction inlet of which is communicated with a discharge outlet of the heat absorption part, and a discharge outlet of which is communicated with a suction inlet of the heat release part; and is
The pump is used for being controlled to be started in the shutdown state of the compressor so as to promote the liquid medium in the heat absorption part to flow to the heat release part.
8. The refrigeration system of claim 1, wherein the defrost line further comprises:
and the heat insulation valve is arranged between the discharge port of the heat radiation part and the suction port of the heat radiation part and is used for being controlled to be closed in the running state of the compressor.
9. The refrigerant system as set forth in claim 1, wherein said refrigerant supply is a refrigerant supply
The heat absorbing part and the heat radiating part are made of copper or aluminum.
10. A refrigerator, characterized by comprising:
a box body;
the refrigeration system of any of claims 1-9 disposed within the tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386642.0U CN212205117U (en) | 2020-03-24 | 2020-03-24 | Refrigerator and refrigerating system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020386642.0U CN212205117U (en) | 2020-03-24 | 2020-03-24 | Refrigerator and refrigerating system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205117U true CN212205117U (en) | 2020-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020386642.0U Active CN212205117U (en) | 2020-03-24 | 2020-03-24 | Refrigerator and refrigerating system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205117U (en) |
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2020
- 2020-03-24 CN CN202020386642.0U patent/CN212205117U/en active Active
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