CN218096772U - Refrigerating device - Google Patents
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- CN218096772U CN218096772U CN202221698501.8U CN202221698501U CN218096772U CN 218096772 U CN218096772 U CN 218096772U CN 202221698501 U CN202221698501 U CN 202221698501U CN 218096772 U CN218096772 U CN 218096772U
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Abstract
The utility model provides a refrigerating plant, including cold-storage container and overlapping formula compression refrigerating system, overlapping formula compression refrigerating system includes evaporative condenser, evaporative condenser is including pasting evaporating pipe and the condenser pipe that pastes the setting and exchange heat mutually, evaporative condenser locates in the cold-storage container, overlapping formula compression refrigerating system includes high temperature level refrigeration cycle return circuit and low temperature level refrigeration cycle return circuit, the evaporating pipe is located in the high temperature level refrigeration cycle return circuit, the condenser pipe is located in the low temperature level refrigeration cycle return circuit. The utility model can reduce the temperature of the refrigerant in the condenser pipe by arranging the evaporating pipe and the condenser pipe in a leaning way and exchanging heat mutually, and pre-cool the low-temperature refrigeration circulation loop, thereby realizing lower temperature of the low-temperature refrigeration circulation loop; the cold accumulation container is used for further cooling the condensation pipe, so that the starting pressure of the low-temperature stage compressor can be reduced.
Description
Technical Field
The utility model relates to a refrigeration plant technical field especially relates to a refrigerating plant.
Background
Along with the improvement of the living standard of residents, the living idea of healthy and balanced diet is gradually deepened into the heart, and one expression is the variety diversification of food materials. In order to effectively preserve and store a plurality of different food materials, classified storage needs to be performed according to storage characteristics of different food materials, wherein one way is to set different temperature zones for classified storage.
At present, a plurality of refrigerating devices with storage compartments with different temperature areas appear on the market, however, the starting pressure of a compressor for supplying cold to the storage compartments in the low-temperature area is too high due to the large cooling capacity required by the storage compartments with the lower temperature areas.
Disclosure of Invention
In order to solve the technical problem, an object of the utility model is to provide a refrigerating plant to solve the problem that the starting pressure of compressor is big when current refrigerating plant supplies cold for the storing compartment of low temperature zone.
In order to realize one of the above objects, an embodiment of the present invention provides a refrigeration device, including cold-storage container and cascade compression refrigerating system, cascade compression refrigerating system includes evaporative condenser, evaporative condenser is including leaning on evaporating pipe and the condenser pipe that sets up and exchange heat mutually, evaporative condenser locates in the cold-storage container, cascade compression refrigerating system includes high temperature level refrigeration cycle circuit and low temperature level refrigeration cycle circuit, the evaporating pipe is located in the high temperature level refrigeration cycle circuit, the condenser pipe is located in the low temperature level refrigeration cycle circuit.
As a further improvement of an embodiment of the present invention, the cold storage container is filled with a cold storage medium, and the evaporative condenser is in contact with the cold storage medium.
As a further improvement of an embodiment of the present invention, the cold storage container is a metal block, and the evaporative condenser is embedded in the metal block.
As a further improvement of an embodiment of the present invention, a cold storage tube is disposed in the cold storage container, and the evaporative condenser is sleeved or attached to the cold storage tube.
As a further improvement of an embodiment of the present invention, the evaporative condenser includes a plurality of straight pipe sections arranged side by side at intervals and a plurality of bend sections configured to connect every two adjacent straight pipe sections, respectively.
As a further improvement of an embodiment of the present invention, the high-temperature stage refrigeration cycle loop further includes a high-temperature stage compressor, a first throttling device, and is located the high-temperature stage muffler at the suction port of the high-temperature stage compressor, the high-temperature stage muffler with the first throttling device is mutually sleeved or attached to the setting.
As a further improvement of an embodiment of the present invention, the high-temperature-stage refrigeration cycle loop is further including locating the high-temperature-stage condenser with parallel branch between the evaporating pipes, parallel branch is including parallelly connected first cooling branch and the second cooling branch that sets up, first cooling branch includes first throttling arrangement and high-temperature-stage evaporator, the second cooling branch includes second throttling arrangement, the high-temperature-stage muffler with second throttling arrangement cup joints each other or pastes and leans on the setting.
As a further improvement of an embodiment of the present invention, the parallel branch further includes a third throttling device connected in parallel with the second throttling device.
As a further improvement of an embodiment of the present invention, the low-temperature stage refrigeration cycle loop further includes a low-temperature stage compressor, a low-temperature stage throttling device, a low-temperature stage evaporator, and is located the low-temperature stage evaporator with a first return air pipe section between the low-temperature stage compressor, the first return air pipe section with the low-temperature stage throttling device is mutually sleeved or attached to the setting.
As a further improvement of an embodiment of the present invention, the low-temperature stage refrigeration cycle loop further includes a second air return pipe section and a heat release pipe section, the second air return pipe section is located the first air return pipe section with between the low-temperature stage compressor, the heat release pipe section with the second air return pipe is mutually sleeved or attached to the setting.
Compared with the prior art, the utility model discloses following beneficial effect has: the refrigeration device of the utility model can reduce the temperature of the refrigerant in the condenser pipe through the arrangement of the evaporation pipe and the condenser pipe in a sticking way and mutual heat exchange, and precool the low-temperature refrigeration circulation loop, thereby realizing lower temperature of the low-temperature refrigeration circulation loop; the cold accumulation container is used for further cooling the condenser pipe, so that the starting pressure of the low-temperature stage compressor can be reduced.
Drawings
Fig. 1 is a schematic structural view of a cascade compression refrigeration system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a cold storage container and an evaporative condenser according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a cascade compression refrigeration system according to embodiment 2 of the present invention;
fig. 4 is a schematic structural view of a cascade compression refrigeration system according to embodiment 3 of the present invention;
fig. 5 is a schematic structural view of a cascade compression refrigeration system according to embodiment 4 of the present invention;
fig. 6 is a schematic structural view of a cascade compression refrigeration system according to embodiment 5 of the present invention;
fig. 7 is a schematic structural view of a cascade compression refrigeration system according to embodiment 6 of the present invention.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings.
In the various figures of the present invention, certain dimensions of structures or portions are exaggerated relative to other structures or portions for ease of illustration, and thus, are used only to illustrate the basic structure of the subject matter of the present invention.
It will be understood that, although the terms first, second, etc. may be used herein to describe various elements or structures, these described elements should not be limited by these terms. These terms are only used to distinguish these descriptive objects from one another.
An embodiment of the utility model provides a refrigerating plant, including the box and the door body, have the storing compartment in the box, the door body is used for opening or closes the storing compartment, and refrigerating plant still includes refrigerating system, and refrigerating system locates in the box and to the storing compartment cooling. Specifically, the refrigerating device can be set as a refrigerator, a freezer, or the like, so as to meet the requirements of different users and different application scenarios.
Example 1
In this embodiment, the box body has a first storage chamber and a second storage chamber, the first storage chamber may be a refrigerating chamber or a freezing chamber, and the second storage chamber may be a temperature-changing chamber or a deep-cooling chamber. The refrigeration system employs a cascade compression refrigeration system 100 that includes a high temperature stage refrigeration cycle loop 1 and a low temperature stage refrigeration cycle loop 2.
For convenience of description, in the present embodiment, the high-temperature-stage refrigeration cycle 1 supplies cold to the first storage compartment, and the low-temperature-stage refrigeration cycle 2 supplies cold to the second storage compartment. Of course, the two may be interchanged.
Of course, in other embodiments, other storage compartments besides the first storage compartment and the second storage compartment may be provided according to actual needs.
Referring to fig. 1, the high-temperature-stage refrigeration cycle circuit 1 includes a high-temperature-stage compressor 11, a high-temperature-stage evaporator 15, and an evaporation tube 12, a first refrigerant flows through the high-temperature-stage refrigeration cycle circuit 1, and the high-temperature-stage compressor 11 is an inverter compressor.
The low-temperature-stage refrigeration cycle circuit 2 comprises a low-temperature-stage compressor 22, a low-temperature-stage evaporator 24 and a condensation pipe 21, wherein a second refrigerant flows through the low-temperature-stage refrigeration cycle circuit 2, and the second refrigerant flowing through the condensation pipe 21 exchanges heat with the first refrigerant flowing through the evaporation pipe 12.
The evaporation tube 12 and the condensation tube 21 are collectively referred to as an evaporation condenser, and they are sleeved or attached to each other, and can exchange heat with each other.
Thus, when the first refrigerant circulates in the high-temperature-stage refrigeration cycle circuit 1, the high-temperature-stage evaporator 15 supplies cold to the first storage compartment; through the heat exchange between the second refrigerant flowing through the condensation pipe 21 and the first refrigerant flowing through the evaporation pipe 12, the first refrigerant in the evaporation pipe 12 can absorb the heat of the second refrigerant flowing through the condensation pipe 21, so that the temperature of the second refrigerant in the condensation pipe 21 can be further reduced, the second refrigerant is precooled for the low-temperature-stage refrigeration cycle loop 2, and the low-temperature-stage refrigeration cycle loop 2 can achieve a lower temperature.
The first refrigerant and the second refrigerant may be the same refrigerant or different refrigerants.
In addition, "high temperature" and "low temperature" in the "high temperature stage refrigeration cycle circuit 1" and the "low temperature stage refrigeration cycle circuit 2" are relative terms, and the evaporation temperature of the first refrigerant flowing through the high temperature stage refrigeration cycle circuit 1 is relatively higher than the evaporation temperature of the second refrigerant flowing through the low temperature stage refrigeration cycle circuit 2.
Referring to fig. 2, the refrigeration device further includes a cold accumulation container 3, the evaporative condenser is disposed in the cold accumulation container 3, and the cold accumulation container 3 further cools the condenser tube 21, so that the starting pressure of the low-temperature stage compressor 22 can be reduced.
Specifically, in the present embodiment, the cold storage container 3 is filled with a cold storage medium, and the evaporative condenser is in contact with the cold storage medium, so that the cold storage medium can exchange heat with the evaporative condenser tubes, and the temperature of the condensation tubes 21 is further reduced, so that the starting pressure of the low-temperature stage compressor 22 can be reduced.
In other embodiments, the cold storage container 3 may also be provided as a metal block in which the evaporative condenser is embedded to cool the second refrigerant in the condensation pipe 21 by using the metal block to reduce the starting pressure of the low-temperature stage compressor 22.
In a modified embodiment, a cold storage tube may also be disposed in the cold storage container 3, the cold storage tube is filled with a cold storage medium, and the evaporative condenser and the cold storage tube are sleeved or attached to each other, so that the second refrigerant in the condensing tube 21 can further cool down through mutual heat exchange between the cold storage medium in the cold storage tube and the second refrigerant in the condensing tube 21, so as to reduce the starting pressure of the low-temperature stage compressor 22.
Further, the evaporative condenser includes a plurality of straight pipe sections that the interval set up side by side and configures into respectively and connects every two adjacent a plurality of bend sections of straight pipe section to can increase evaporative condenser and cold-storage container 3's area of contact improves heat exchange efficiency, is favorable to rationally arranging evaporating pipe 12 and condenser pipe 21 moreover.
Further, the high-temperature-stage refrigeration cycle loop 1 further includes a high-temperature-stage condenser 14, a first throttling device 161, and a high-temperature-stage air return pipe 13 disposed at the air suction port of the high-temperature-stage compressor 11, where the high-temperature-stage air return pipe 13 and the first throttling device 161 are sleeved or attached to each other, so that a first refrigerant flowing through the first throttling device 161 and a first refrigerant flowing through the high-temperature-stage air return pipe 13 exchange heat, and thus the first refrigerant in the high-temperature-stage air return pipe 13 can be utilized to cool the first refrigerant in the first throttling device 161, increase the cooling capacity, increase the air suction temperature of the high-temperature-stage compressor 11, increase the temperature to about the ambient temperature, improve the refrigeration efficiency of the high-temperature-stage compressor 11, and improve the working efficiency of the high-temperature-stage refrigeration cycle loop 1, and thus the first compartment can realize a temperature range of-30 to 10 ℃.
Referring to fig. 1, further, the high-temperature stage refrigeration cycle 1 further includes a parallel branch disposed between the high-temperature stage condenser 14 and the evaporating pipe 12, the parallel branch includes a switching valve 17 disposed at an inlet thereof, and a first cooling branch and a second cooling branch disposed in parallel, the first cooling branch includes a first throttling device 161 and the high-temperature stage evaporator 15 disposed in series, and the second cooling branch includes a second throttling device 162. The switching valve 17 is selectively communicated with at least one of the first cooling branch or the second cooling branch.
Further, the high-temperature-stage air return pipe 13 and the second throttling device 162 are sleeved or attached to each other, and the first refrigerant flowing through the second throttling device 162 exchanges heat with the first refrigerant flowing through the high-temperature-stage air return pipe 13, so that the first refrigerant in the high-temperature-stage air return pipe 13 can be used for cooling the first refrigerant in the second throttling device 162, increasing the refrigerating capacity, increasing the air suction temperature of the high-temperature-stage compressor 11 to about the ambient temperature, improving the refrigerating efficiency of the high-temperature-stage compressor 11, and improving the working efficiency of the high-temperature-stage refrigeration cycle loop 1, and thus, the temperature range of minus 30 to 10 ℃ can be realized in the first storage compartment.
Preferably, the first throttling means 161 and the second throttling means 162 are both capillary tubes.
Further, the high-temperature-stage refrigeration cycle circuit 1 further includes a high-temperature-stage dry filter 18 disposed between the high-temperature-stage condenser 14 and the parallel branch, and a liquid storage bag 19 disposed between the evaporation tube 12 and the high-temperature-stage return air tube 13.
The low-temperature-stage refrigeration cycle circuit 2 further includes a low-temperature-stage throttling device 23 and a first gas return pipe section 25, and the condensation pipe 21 is provided between the low-temperature-stage compressor 22 and the low-temperature-stage throttling device 23.
Further, the second refrigerant flowing through the first gas return pipe section 25 exchanges heat with the second refrigerant flowing through the low-temperature-stage throttling device 23, so that the second refrigerant flowing through the first gas return pipe section 25 can absorb heat of the second refrigerant flowing through the low-temperature-stage throttling device 23, the temperature of the second refrigerant flowing to the suction port of the low-temperature-stage compressor 22 is increased, the suction temperature of the low-temperature-stage compressor 22 is increased, the energy utilization rate of the low-temperature-stage refrigeration cycle loop 2 is increased, and the energy efficiency of the whole refrigeration device is improved.
Preferably, the low-temperature-stage throttling device 23 is a capillary tube, and the first return air pipe section 25 and the low-temperature-stage throttling device 23 are sleeved or attached to each other, so that the heat exchange efficiency of a second refrigerant circulating in the first return air pipe section and the second return air pipe section is facilitated, and the energy utilization rate is improved.
Further, the low-temperature stage refrigeration cycle loop 2 further includes a second air return pipe section 26 and a heat release pipe section 27, the second air return pipe section 26 is disposed between the low-temperature stage evaporator 24 and the low-temperature stage compressor 22, the heat release pipe section 27 is disposed between the low-temperature stage compressor 22 and the condenser pipe 21, and the second refrigerant flowing through the second air return pipe section 26 exchanges heat with the second refrigerant flowing through the heat release pipe section 27. Therefore, the second refrigerant flowing through the second air return pipe section 26 can absorb the heat of the second refrigerant flowing through the heat release pipe section 27, the air suction temperature of the low-temperature stage compressor 22 is increased, the cold quantity of the second refrigerant flowing from the heat release pipe section 27 to the condensation pipe 21 is reduced, the low-temperature stage refrigeration cycle loop 2 can achieve lower temperature, the temperature of the second storage compartment is adjustable within the temperature range of-60 to-20 ℃, the energy utilization rate of the low-temperature stage refrigeration cycle loop 2 is increased, and the energy efficiency of the whole refrigeration device is improved.
Preferably, the second gas return pipe section 26 is located between the first gas return pipe section 25 and the low temperature stage compressor 22, so that the energy utilization rate of the low temperature stage refrigeration cycle circuit 2 can be maximally improved.
The second return air pipe section 26 and the heat release pipe section 27 are sleeved or attached to each other, so that the heat exchange efficiency of the second refrigerant flowing in the second return air pipe section and the heat release pipe section is improved, and the energy utilization rate is improved.
Further, the low-temperature-stage refrigeration cycle circuit 2 further includes a low-temperature-stage dry filter 29 disposed between the condensation pipe 21 and the low-temperature-stage throttling device 23. The second refrigerant flowing out of the condensation duct 21 may be dried and filtered by the low temperature stage filter-drier 29.
Example 2
Referring to fig. 3, a second embodiment of the present invention is different from example 1 only in that:
the parallel branch further includes a third throttling device 163 disposed in parallel with the second throttling device 162, and the switching valve 17 is selectively communicated with at least one of the first cooling branch, the second cooling branch, and the third throttling device 163. In addition, the first refrigerant flowing through the third throttling device 163 does not exchange heat with the first refrigerant flowing through the high temperature stage return pipe 13.
In this way, when the low-temperature stage compressor 22 is started, the first refrigerant can be made to flow through the third throttling device 163, and compared with the case where the first refrigerant flows through the second throttling device 162, the start pressure of the refrigeration system at the start instant of the low-temperature stage compressor 22 can be further reduced, thereby preventing the flow rate of the first refrigerant in the second throttling device 162 from being reduced due to heat exchange between the first refrigerant flowing into the high-temperature stage return pipe 13 and the second throttling device 162.
Preferably, the third throttling means 163 is a capillary tube.
The second embodiment is the same as embodiment 1 except for the above differences, which are not described herein again.
Example 3
Referring to fig. 4, a third embodiment of the present invention is different from example 1 only in that:
the first cooling branch comprises a first throttling device 161, the second cooling branch comprises a second throttling device 162 and an evaporating pipe 12 which are arranged in series, the high-temperature-stage evaporator 15 is arranged between the parallel branch and the high-temperature-stage compressor 11, and the high-temperature-stage air return pipe 13 is arranged between the high-temperature-stage evaporator 15 and the high-temperature-stage compressor 11.
The third embodiment is the same as embodiment 1 except for the above differences, which are not described herein again.
Example 4
Referring to fig. 5, a fourth embodiment of the present invention is different from example 3 only in that:
the parallel branch further includes a third throttling device 163 disposed in parallel with the second throttling device 162, and the switching valve 17 is selectively communicated with at least one of the first cooling branch, the second cooling branch, and the third throttling device 163. In addition, the first refrigerant flowing through the third throttling device 163 does not exchange heat with the first refrigerant flowing through the inside of the high-temperature-stage return pipe 13.
In this way, when the low-temperature stage compressor 22 is started, the first refrigerant can be made to flow through the third throttling device 163, and compared with the case where the first refrigerant flows through the second throttling device 162, the start pressure of the refrigeration system at the start instant of the low-temperature stage compressor 22 can be further reduced, thereby preventing the flow rate of the first refrigerant in the second throttling device 162 from being reduced due to heat exchange between the first refrigerant flowing into the high-temperature stage return pipe 13 and the second throttling device 162.
Preferably, the third throttling means 163 is a capillary tube.
The fourth embodiment is the same as embodiment 3 except for the above differences, which are not described herein again.
Example 5
Referring to fig. 6, a fifth embodiment of the present invention is different from embodiment 1 only in that:
the first cooling branch comprises a first throttling device 161 and a high-temperature-stage evaporator 15 which are arranged in series, the second cooling branch comprises a second throttling device 162 and an evaporating pipe 12 which are arranged in series, and a high-temperature-stage return air pipe 13 is arranged between the parallel branch and the high-temperature-stage compressor 11.
The fifth embodiment is the same as embodiment 1 except for the above differences, which are not described herein again.
Example 6
Referring to fig. 7, a sixth embodiment of the present invention is different from embodiment 5 only in that:
the parallel branch further includes a third throttling device 163 disposed in parallel with the second throttling device 162, and the switching valve 17 is selectively communicated with at least one of the first cooling branch, the second throttling device 162 and the third throttling device 163. In addition, the first refrigerant flowing through the third throttling device 163 does not exchange heat with the first refrigerant flowing through the inside of the high-temperature-stage return pipe 13.
Thus, when the low-temperature-stage compressor 22 is started, the first refrigerant can be made to flow through the third throttling device 163, and compared with the case where the first refrigerant flows through the second throttling device 162, the starting pressure of the refrigeration system at the moment of starting the low-temperature-stage compressor 22 can be further reduced, so that the flow rate of the first refrigerant in the second throttling device 162 is prevented from being reduced due to the heat exchange between the first refrigerant flowing into the high-temperature-stage return pipe 13 and the second throttling device 162.
Preferably, the third throttling means 163 is a capillary tube.
The sixth embodiment is the same as embodiment 5 except for the above differences, which are not described herein again.
Compared with the prior art, the utility model provides a refrigerating plant, its beneficial effect lies in: the evaporating pipe 12 and the condensing pipe 21 are arranged in a clinging manner and exchange heat with each other, so that the temperature of the refrigerant in the condensing pipe 21 can be reduced, and the refrigerant is precooled for the low-temperature-level refrigeration circulation loop 2, and the low-temperature-level refrigeration circulation loop 2 can realize lower temperature; the cold storage container 3 further lowers the temperature of the condenser tube 21, thereby lowering the starting pressure of the low-temperature stage compressor 22.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of details is only for the practical implementation of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (10)
1. The refrigerating device is characterized by comprising a cold accumulation container and a cascade compression refrigerating system, wherein the cascade compression refrigerating system comprises an evaporative condenser, the evaporative condenser comprises an evaporation pipe and a condensation pipe which are arranged in an attached mode and exchange heat with each other, the evaporative condenser is arranged in the cold accumulation container, the cascade compression refrigerating system comprises a high-temperature-level refrigerating circulation loop and a low-temperature-level refrigerating circulation loop, the evaporation pipe is located in the high-temperature-level refrigerating circulation loop, and the condensation pipe is located in the low-temperature-level refrigerating circulation loop.
2. A refrigerating device as recited in claim 1 wherein said cold storage container is filled with a cold storage medium, said evaporative condenser being in contact with said cold storage medium.
3. A refrigerating device as recited in claim 1 wherein said cold storage container is a metal block in which said evaporative condenser is embedded.
4. A refrigerating device as recited in claim 1 wherein said cold accumulation container is provided with a cold accumulation tube, and said evaporative condenser and said cold accumulation tube are nested or attached to each other.
5. A cold appliance according to claim 1, wherein the evaporative condenser comprises a plurality of straight tube sections arranged side by side at intervals and a plurality of bend sections each configured to connect every two adjacent straight tube sections.
6. The refrigeration device as claimed in claim 1, wherein the high-temperature stage refrigeration cycle further includes a high-temperature stage compressor, a first throttling device, and a high-temperature stage muffler disposed at a suction port of the high-temperature stage compressor, and the high-temperature stage muffler and the first throttling device are sleeved or attached to each other.
7. The refrigerating device as recited in claim 6 wherein said high temperature stage refrigeration cycle further comprises a parallel branch disposed between said high temperature stage condenser and said evaporator tube, said parallel branch comprising a first cooling branch and a second cooling branch disposed in parallel, said first cooling branch comprising said first throttling device and said high temperature stage evaporator, said second cooling branch comprising a second throttling device, said high temperature stage air return tube and said second throttling device being sleeved or attached to each other.
8. A cold appliance according to claim 7, wherein the parallel branch further comprises a third throttling device arranged in parallel with the second throttling device.
9. The refrigeration apparatus of claim 1, wherein the low-temperature stage refrigeration cycle further comprises a low-temperature stage compressor, a low-temperature stage throttling device, a low-temperature stage evaporator, and a first return air pipe section arranged between the low-temperature stage evaporator and the low-temperature stage compressor, and the first return air pipe section and the low-temperature stage throttling device are sleeved with each other or attached to each other.
10. The refrigeration device according to claim 9, wherein the low-temperature stage refrigeration cycle loop further comprises a second return air pipe section and a heat release pipe section, the second return air pipe section is arranged between the first return air pipe section and the low-temperature stage compressor, and the heat release pipe section and the second return air pipe section are sleeved or attached to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221698501.8U CN218096772U (en) | 2022-06-30 | 2022-06-30 | Refrigerating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221698501.8U CN218096772U (en) | 2022-06-30 | 2022-06-30 | Refrigerating device |
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| CN218096772U true CN218096772U (en) | 2022-12-20 |
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| CN202221698501.8U Active CN218096772U (en) | 2022-06-30 | 2022-06-30 | Refrigerating device |
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