CN213778311U - Refrigerator with a door - Google Patents
Refrigerator with a door Download PDFInfo
- Publication number
- CN213778311U CN213778311U CN202021796463.0U CN202021796463U CN213778311U CN 213778311 U CN213778311 U CN 213778311U CN 202021796463 U CN202021796463 U CN 202021796463U CN 213778311 U CN213778311 U CN 213778311U
- Authority
- CN
- China
- Prior art keywords
- storage space
- air
- refrigerator
- pump
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000605 extraction Methods 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims abstract description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 64
- 239000001301 oxygen Substances 0.000 claims description 64
- 229910052760 oxygen Inorganic materials 0.000 claims description 64
- 239000012528 membrane Substances 0.000 claims description 39
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 239000007789 gas Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- 238000004804 winding Methods 0.000 claims description 11
- 238000012546 transfer Methods 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 42
- 238000004378 air conditioning Methods 0.000 description 12
- 238000004321 preservation Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 7
- 235000013372 meat Nutrition 0.000 description 6
- 238000007710 freezing Methods 0.000 description 5
- 230000008014 freezing Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 235000012055 fruits and vegetables Nutrition 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000000306 component Substances 0.000 description 3
- 238000004320 controlled atmosphere Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 1
- 230000004103 aerobic respiration Effects 0.000 description 1
- 230000004099 anaerobic respiration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 239000002470 thermal conductor Substances 0.000 description 1
Images
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model provides a refrigerator, which comprises a first storage space and an air extractor, wherein a pump inlet of the air extractor is communicated with the first storage space so as to extract part or all of gas in the first storage space; the refrigerator also comprises an exhaust pipe; the air extraction device comprises a pump head with a pump outlet and a motor, wherein the motor is provided with a motor shell; the blast pipe twine in motor housing, just the import of blast pipe with on the pump head pump export intercommunication. The pump mouth is connected the blast pipe, and the motor temperature reduction is realized through temperature conduction to the cold air through the blast pipe, and the motor temperature reduction is realized through blast pipe forced convection to the high-speed air, falls the noise through the realization of extension exhaust total length. The service life of the air extracting device is prevented from being influenced by the overhigh temperature of the motor, the reliability of the air extracting device is guaranteed, the noise generated by the air extracting device can be reduced, and the user experience is improved.
Description
Technical Field
The utility model relates to a refrigerator storing technical field especially relates to a refrigerator.
Background
The refrigerator is a refrigerating device for keeping constant low temperature, and is a civil product for keeping food or other articles in a constant low-temperature cold state. With the social development, the quality of life is higher and higher, the pace of life is faster and faster, and the requirement for keeping things fresh is increased. The development of the preservation technology of the refrigerator is promoted, and the vacuum preservation and oxygen reduction preservation technology is an important development direction. Both of these techniques require a vacuum pump as a core component, which increases in temperature during operation, which shortens life, and generates noise that reduces user experience. At present, the working time of the vacuum pump is reduced, and the natural cooling or forced air cooling mode of the fan is additionally adopted for cooling, so that the noise is reduced by adopting a mode of additionally arranging a silencer at an air outlet.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at overcoming at least one defect of current refrigerator, provide a novel refrigerator to guarantee the vacuum pump performance, and the noise reduction.
The utility model provides a refrigerator, including first storage space, first air adjusting membrane subassembly and air exhaust device, the pump inlet of air exhaust device with first air adjusting membrane subassembly intercommunication to make the oxygen in the first storage space flow out more than the nitrogen gas in the first storage space through the first air adjusting membrane subassembly the first storage space;
wherein, the refrigerator also comprises an exhaust pipe;
the air extraction device comprises a pump head with a pump outlet and a motor, wherein the motor is provided with a motor shell;
the blast pipe twine in motor housing, just the import of blast pipe with on the pump head pump export intercommunication.
Optionally, the inlet of the exhaust pipe communicates with the pump outlet through a flexible pipe.
Optionally, the refrigerator further comprises a bimetal thermal conduction device, one end of the bimetal thermal conduction device is thermally connected with the motor housing, and the other end of the bimetal thermal conduction device is thermally connected with the pump head, so that heat generated by the motor is transferred to the pump head, and the heat transfer is disconnected after the temperature of the pump head reaches a preset temperature.
Optionally, the exhaust pipe is made of a heat conducting material, and includes an inlet pipe section, a winding pipe section and an outlet pipe section, the inlet pipe section and the outlet pipe section are connected to two ends of the winding pipe section, and the winding pipe section is wound around the motor housing;
the bimetallic strip heat conducting device is in thermal connection with the end part of the outlet pipe section connected to the winding pipe section.
Optionally, a metal sheet is arranged on the exhaust pipe, and the metal sheet is thermally connected with the bimetallic strip heat conduction device.
Optionally, the refrigerator further comprises a second storage space, a second gas-regulating membrane module and a valve, the first gas-regulating membrane module is communicated with one inlet of the valve, the second gas-regulating membrane module is communicated with the other inlet of the valve, and the pump inlet of the gas-extracting device is communicated with the outlet of the valve, so that more oxygen in the second storage space flows out of the second storage space relative to nitrogen in the second storage space through the second gas-regulating membrane module.
Optionally, the storage temperature in the first storage space is higher than the storage temperature in the second storage space;
the valve is configured to enable the air extracting device to be communicated with the first air regulating membrane assembly for a first preset time period and then to be switched to enable the air extracting device to be communicated with the second air regulating membrane assembly, and enable the air extracting device to be communicated with the first air regulating membrane assembly for a second preset time period and then to be switched to enable the air extracting device to be communicated with the first air regulating membrane assembly, so that oxygen can be reduced for the second storage space alternatively or for the first storage space and the second storage space simultaneously.
Optionally, the first storage space is a refrigerated storage compartment of the refrigerator, or the first storage space is arranged in the refrigerated storage compartment of the refrigerator; or
The first storage space is a temperature-changing storage compartment of the refrigerator.
Optionally, the first storage space is a refrigerated storage compartment of the refrigerator, or the first storage space is arranged in the refrigerated storage compartment of the refrigerator;
the second storage space is a temperature-changing storage compartment of the refrigerator.
Optionally, the air extracting device is a vacuum pump, and the flexible pipe is a plastic pipe.
The utility model discloses an in the refrigerator, pump exit linkage blast pipe, the cold air passes through the blast pipe and realizes that motor temperature reduces through temperature conduction, and the high-speed air passes through the blast pipe and forces the convection current to realize that motor temperature reduces, falls to make an uproar through the realization of extension exhaust total length. The service life of the air extracting device is prevented from being influenced by the overhigh temperature of the motor, the reliability of the air extracting device is guaranteed, the noise generated by the air extracting device can be reduced, and the user experience effect is improved.
Furthermore, in the refrigerator of the utility model, the bimetallic strip heat conducting device is arranged, when the temperature of the pump head is low, the high temperature generated by the motor is used for heating, so as to prevent the pump head from frosting and freezing; when the pump head temperature is high, the heat transfer is disconnected, and the high temperature on the motor is prevented from continuously heating the pump head. The pump head can be prevented or frosted, the performance of the vacuum pump is guaranteed, and the reliability of the vacuum pump is prolonged. The bimetallic strip heat conduction device can also prevent the pump head from being heated continuously, and the heat dissipation effect of the motor is influenced.
Further, the utility model discloses an in the refrigerator because when the room need be fallen oxygen between the low temperature, adopt the mode that room and the room fall oxygen in turn between the low temperature and allow between the high temperature, utilize the air that is higher than freezing point temperature to prevent frosting or change the frost, prevent that the room falls oxygen in-process low temperature air between the low temperature from condensing into frost or ice crystal with the steam in the pipeline, can be in order to reduce or prevent to produce the ice crystal in the exhaust tube, and prevent frosting such as valve, can protect valve and vacuum pump etc. improve life. Further, when the high-temperature chamber and the low-temperature chamber both need to reduce oxygen, the oxygen reduction efficiency can be improved by alternately carrying out the oxygen reduction, and the energy-saving effect is obvious.
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 structural view of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic partial block diagram of the refrigerator shown in FIG. 1;
FIG. 3 is a schematic block diagram of an air extractor in the refrigerator of FIG. 1;
FIG. 4 is a schematic block diagram of an air extractor in the refrigerator of FIG. 1;
fig. 5 is a schematic structural view of a refrigerator according to an embodiment of the present invention;
fig. 6 is a schematic partial structural view of the refrigerator shown in fig. 5.
Detailed Description
Fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention. In some embodiments of the present invention, as shown in fig. 1 and with reference to fig. 2 and 3, the refrigerator includes a refrigeration system, a first storage space 21, a first air adjustment assembly, and an air extraction device 40. The refrigeration system is configured to provide cooling energy into the first storage space 21. The pump inlet of the gas-withdrawal device 40 communicates with the first modified atmosphere module to allow more oxygen in the first storage space 21 to flow out of the first storage space 21 relative to nitrogen in the first storage space 21 through the first modified atmosphere module. The air may have a velocity acting on the air-extracting means 40.
Because of the air-conditioning membrane component, a nitrogen-rich and oxygen-poor gas atmosphere which is beneficial to food preservation can be formed in the corresponding storage space, the oxygen content in the fruit and vegetable preservation space is reduced, the aerobic respiration intensity of the fruit and vegetable is reduced, the basic respiration is ensured, and the fruit and vegetable is prevented from being subjected to anaerobic respiration, so that the purpose of long-term preservation of the fruit and vegetable is achieved. The method can also realize the air-conditioned short-term meat preservation at low temperature, improve the taste, nutrition, flavor and appearance of the meat, reduce the oxidation strength of the meat by reducing the oxygen content in the meat preservation space, and inhibit the aerobic bacteria contained in the meat under the condition of low oxygen, thereby achieving the purpose of meat preservation.
In some optional embodiments of the present invention, the first storage space 21 may be a vacuum space, that is, the first storage space 21 is not communicated with the air pumping device 40 through the first air-conditioning membrane module, so as to pump out part or all of the air in the first storage space 21 for vacuum preservation.
Further, as shown in fig. 3 and 4, the refrigerator further includes an exhaust tube 43, the air-extracting device 40 includes a pump head 41 having a pump outlet and a motor including a motor housing 42. An exhaust tube 43 is wound around the motor housing 42, and an inlet of the exhaust tube 43 communicates with an outlet of the pump on the pump head 41. Specifically the inlet of the exhaust pipe 43 communicates with the pump outlet through a flexible pipe 44. The flexible tube 44 may be a plastic tube. Specifically, air exhaust device 40 is the vacuum pump, and the vacuum pump generates heat and concentrates on the motor part, that is to say the key position of cooling, at the pump of vacuum pump export with plastic pipe connection exhaust pipe 43, the cold air passes through exhaust pipe 43 and realizes the motor temperature reduction through the temperature conduction, and the high-speed air passes through exhaust pipe 43 and forces the convection current to realize the motor temperature reduction, realizes falling the noise through the total length of extension exhaust. In the present application, it will be appreciated by those skilled in the art that the term "flexible pipe" is used to refer to a pipe, which may also be referred to as a hose, having some ability to deform and recover when subjected to an external force, to facilitate the installation of the exhaust pipe.
Further, as shown in fig. 4, the refrigerator further includes a bimetal heat conduction device 50, the motor housing 42 and the pump head 41 are thermally connected to the bimetal heat conduction device 50, and the bimetal heat conduction device 50 is configured to transfer heat generated by the motor to the pump head 41 and to interrupt the heat transfer after the temperature of the pump head 41 reaches a preset temperature. By arranging the bimetallic strip heat-conducting device 50, when the temperature of the pump head 41 is low, the pump head 41 is connected with the motor shell 42, and the pump head 41 is prevented from frosting and freezing due to high-temperature heating of the pump head 41; when the pump head 41 is at a high temperature, the heat transfer is interrupted, preventing the high temperature on the motor from continuously heating the pump head 41. After the temperature is reduced, the bimetal thermal conduction device 50 is reset for heat transfer. The bimetallic strip heat conducting device 50 is utilized, so that the structure is simple, the cost is low, and the service life is long. Further, the motor shell 42 is directly used for cooling, the structure of the motor and the air extracting device 40 is not changed, the practicability is high, and the cost is low.
In some embodiments of the present invention, the exhaust pipe 43 is made of a heat conductive material, and the bimetallic strip heat conducting device 50 is thermally connected to the motor housing 42 through the exhaust pipe 43. Specifically, the exhaust pipe 43 includes an inlet pipe section, a winding pipe section, and an outlet pipe section, which are connected to both ends of the winding pipe section, the winding pipe section being wound around the motor housing 42. The bimetal thermal conductor 50 is thermally connected to the end of the outlet pipe section which is connected to the wound pipe section. For example, the exhaust pipe 43 is provided with a metal plate 45, and the metal plate 45 is thermally connected to the bimetal thermal conduction device 50. The heat is transferred through the exhaust pipe 43, so that the temperature of the pump head 41 is not increased too fast or too high, which causes frequent temperature changes of the pump head 41, frequent actions of the bimetal thermal conduction device 50, and influences the service life and performance of the pump head 41. When the flexible tube 44 is a plastic tube, it can prevent the heat of the motor housing 42 from being transferred to the pump head 41 through the exhaust tube 43.
The first storage space 21 is a refrigerated storage chamber 23 of the refrigerator, or the first storage space 21 is arranged in the refrigerated storage chamber 23 of the refrigerator; or the first storage space 21 is a temperature-changing storage compartment 25 of the refrigerator.
In some embodiments of the present invention, as shown in fig. 5 and 6, the refrigerator further comprises a second storage space 22, a second modified atmosphere module and a valve 31. The first gas regulating assembly is in communication with one inlet of the valve 31, the second gas regulating assembly is in communication with the other inlet of the valve 31, and the gas-withdrawal device 40 is in communication with the outlet of the valve 31 to allow more oxygen in the first storage space 21 to flow out of the first storage space 21 relative to nitrogen in the first storage space 21 through the first gas regulating assembly and more oxygen in the second storage space 22 to flow out of the second storage space 22 relative to nitrogen in the second storage space 22 through the second gas regulating assembly. The valve 31 is preferably a three-way valve. Two or more modified atmosphere storage spaces may be deoxygenated. In some embodiments of the present invention, other storage compartments that do not require oxygen reduction, such as the freezer compartment 24, may also be provided within the refrigerator.
In some embodiments of the present invention, the first storage space 21 and the second storage space 22 may be referred to as a modified atmosphere storage space, a containing cavity is provided in a top wall of the modified atmosphere storage space, and the first modified atmosphere module and the second modified atmosphere module may be referred to as modified atmosphere modules, both installed in the corresponding containing cavity. Preferably, the first and second modified atmosphere modules may be of a planar form, the modified atmosphere modules comprising a support frame and a modified atmosphere. The controlled atmosphere membranes are preferably oxygen-enriched membranes, and can be two, and the two controlled atmosphere membranes are arranged on two sides of the supporting frame, so that the two controlled atmosphere membranes and the supporting frame jointly enclose the oxygen-enriched gas collecting cavity. A first vent hole and a second vent hole are formed in a wall surface between the receiving cavity of the top wall of the modified atmosphere storage space and the inner side of the modified atmosphere storage space. The first vent hole is spaced apart from the second vent hole to communicate the receiving cavity with the modified atmosphere storage space at different locations, respectively. The first vent hole and the second vent hole are both small holes, and the number of the first vent hole and the second vent hole can be multiple. The receiving chamber may also be provided with a blower configured to cause gas in the modified atmosphere storage space to enter the receiving chamber via the first vent and to cause gas in the receiving chamber to enter the modified atmosphere storage space via the second vent. That is, the blower may cause the gas in the modified atmosphere storage space to return to the modified atmosphere storage space through the first vent, the holding chamber, and the second vent in sequence. The fan is preferably a centrifugal fan, and the air inlet is opposite to the first air vent. The air outlet of the centrifugal fan can face the modified atmosphere membrane component.
In some embodiments of the present invention, the storage temperature in the first storage space 21 is higher than the storage temperature in the second storage space 22, for example, the first storage space 21 is a cold storage compartment, the second storage space 22 is a variable temperature storage compartment, the temperature of the air drawn out from the first storage space 21 is generally between 0 ℃ and 10 ℃, and the temperature of the air drawn out from the second storage space 22 is generally between-8 ℃ and 10 ℃.
The valve 31 may be configured to switch the air extracting device 40 to communicate with the second air regulating module after the air extracting device 40 communicates with the first air regulating module for a first predetermined period of time, and to switch the air extracting device 40 to communicate with the first air regulating module after the air extracting device 40 communicates with the second air regulating module for a second predetermined period of time, to operate alternately to deoxygenate the second storage space 22, or to deoxygenate both the first storage space 21 and the second storage space 22. The alternate operation can prevent the air extractor 40 from damaging and the valve 31 from frosting caused by the long-time low-temperature air suction of the air extractor 40.
Further, the valve 31 is also configured to communicate the air extracting device 40 with the first air regulating membrane module for a fourth preset time when the second storage space 22 finishes oxygen reduction when only the second storage space 22 is subjected to oxygen reduction. The three-way valve can be prevented from being easily frosted when being in the low temperature stage finally. The freezing and cooling processes are alternately carried out, so that the water vapor in the pipeline is prevented from being condensed into frost or ice crystal by the low-temperature air in the oxygen reduction process of the temperature-variable storage chamber, and the frost or frost is prevented by refrigerating the air with the temperature higher than the freezing point.
In some embodiments of the present invention, when the first storage space 21 and the second storage space 22 both need to reduce oxygen, or only the second storage space 22 needs to reduce oxygen, the air extracting device 40 is opened, and the control valve 31 firstly connects the air extracting device 40 to the first air-conditioning membrane module, and the valve 31 connects the air extracting device 40 to the second air-conditioning membrane module after the first preset time period of the connection between the air extracting device 40 and the first air-conditioning membrane module, and the valve 31 connects the air extracting device 40 to the second air-conditioning membrane module after the second preset time period of the connection between the air extracting device 40 and the second air-conditioning membrane module.
That is, when the second storage space 22 needs to be deoxygenated, the valve 31 first connects the air extractor 40 to the first air regulating membrane module, so as to prevent the air extractor 40 from being damaged by directly pumping low-temperature air during the starting of the air extractor 40, and also prevent frosting or defrosting. The alternate operation can prevent the air extractor 40 from damaging and the valve 31 from frosting caused by the long-time low-temperature air suction of the air extractor 40. Meanwhile, when the first storage space 21 needs oxygen reduction, the oxygen reduction efficiency can be improved by alternately reducing the oxygen, so that the equipment utilization rate is improved, and the efficiency is high.
In some embodiments of the present invention, when the first storage space 21 and the second storage space 22 both need to reduce oxygen, the first preset time period is equal to the second preset time period, which is convenient for control. When only the second storage space 22 needs oxygen reduction, the first preset time period can be shorter than the second preset time period, and the energy-saving effect is obvious.
Further, the oxygen reduction time period of the first storage space 21 is accumulated until the first oxygen reduction time period is reached or exceeded, so that the first storage space 21 is completely reduced in oxygen. For example, all the first preset time period is accumulated, and the timing of ending the oxygen reduction of the first storage space 21 is determined. It should be noted that when the last first preset time period is operated, if the first preset time period is not reached, the oxygen reduction ending time of the first storage space 21 is met, the oxygen reduction of the first storage space 21 can be immediately ended, or the oxygen reduction of the first storage space 21 can be ended after the first preset time period is operated. The oxygen reduction period of the second storage space 22 is accumulated until the second oxygen reduction period is reached or exceeded, so that the oxygen reduction of the second storage space 22 is finished.
Similarly, the second preset time period is accumulated to determine the timing of ending the oxygen reduction in the second storage space 22. It should be noted that when the last second preset time period is operated, if the second preset time period is not reached, the oxygen reduction ending time of the second storage space 22 is met, the oxygen reduction of the second storage space 22 may be immediately ended, or the oxygen reduction of the second storage space 22 may be ended after the second preset time period is operated. Can better reduce oxygen, ensure that the oxygen reduction meets the requirements and ensure the quality of the stored food.
In some embodiments of the present invention, when the first storage space 21 finishes the oxygen reduction and the second storage space 22 still needs the oxygen reduction, the control valve 31 connects the air extractor 40 and the first air regulating membrane module for a third preset time period when the second storage space 22 finishes the oxygen reduction. When only the second storage space 22 is used for oxygen reduction, the valve 31 is controlled to communicate the gas extraction device 40 with the first air regulating membrane module for a fourth preset time when the second storage space 22 finishes the oxygen reduction. The third preset duration may be equal to the fourth preset duration. When the first storage space 21 finishes the oxygen reduction and the second storage space 22 needs to reduce oxygen, it can be said that only the second storage space 22 needs to reduce oxygen at this time. When only the second storage space 22 needs to be deoxygenated, it can also be said that only the second storage space 22 is deoxygenated. The valve 31 can be prevented from being easily frosted in the low temperature stage.
In some embodiments of the present invention, when the first storage space 21 finishes the oxygen reduction and the second storage space 22 still needs the oxygen reduction, when the first storage space 21 finishes the oxygen reduction or after the first storage space 21 finishes the oxygen reduction for a fifth preset time, the control valve 31 makes the air extracting device 40 communicate with the second air-conditioning membrane module, and the valve 31 makes the air extracting device 40 communicate with the second air-conditioning membrane module for a sixth preset time and then switches to make the air extracting device 40 communicate with the first air-conditioning membrane module, and the valve 31 makes the air extracting device 40 communicate with the first air-conditioning membrane module for a seventh preset time and then switches to make the air extracting device 40 communicate with the second air-conditioning membrane module until the second storage space 22 finishes the oxygen reduction. Further, the sixth preset time period is equal to the second preset time period, and the seventh preset time period is less than or equal to the first preset time period. The fifth preset time period may be the first preset time period minus the operating oxygen reduction time of the first storage space 21, that is, when the last first preset time period is operated, if the first preset time period is not reached, the oxygen reduction ending time of the first storage space 21 is met, and the oxygen reduction of the first storage space 21 is ended after the first preset time period is operated. The seventh preset period of time may be equal to the first preset period of time required when only the second storage space 22 needs to be deoxygenated. The alternate operation can prevent the air extractor 40 from damaging and the valve 31 from frosting caused by the long-time low-temperature air suction of the air extractor 40.
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 refrigerator comprises a first storage space and an air extracting device, wherein a pump inlet of the air extracting device is communicated with the first storage space so as to extract part or all of gas in the first storage space; the refrigerator is characterized by further comprising an exhaust pipe;
the air extraction device comprises a pump head with a pump outlet and a motor, wherein the motor is provided with a motor shell;
the blast pipe twine in motor housing, just the import of blast pipe with on the pump head pump export intercommunication.
2. The refrigerator according to claim 1,
the inlet of the exhaust pipe is communicated with the outlet of the pump through a flexible pipe.
3. The refrigerator according to claim 1, further comprising a bimetal heat-conducting device,
one end of the bimetallic strip heat conducting device is thermally connected with the motor shell, and the other end of the bimetallic strip heat conducting device is thermally connected with the pump head so as to transfer heat generated by the motor to the pump head and disconnect heat transfer after the temperature of the pump head reaches a preset temperature.
4. The refrigerator according to claim 3,
the exhaust pipe is made of heat conducting materials and comprises an inlet pipe section, a winding pipe section and an outlet pipe section, the inlet pipe section and the outlet pipe section are connected to two ends of the winding pipe section, and the winding pipe section is wound on the motor shell;
the bimetallic strip heat conducting device is in thermal connection with the end part of the outlet pipe section connected to the winding pipe section.
5. The refrigerator of claim 1, further comprising a first air regulating membrane assembly, wherein the pump inlet of the air extracting device is communicated with the first air regulating membrane assembly to enable more oxygen in the first storage space to flow out of the first storage space relative to nitrogen in the first storage space through the first air regulating membrane assembly.
6. The refrigerator of claim 5, further comprising a second storage space, a second gas atmosphere module and a valve, the first gas atmosphere module being in communication with one inlet of the valve, the second gas atmosphere module being in communication with the other inlet of the valve, the pump inlet of the gas evacuation device being in communication with an outlet of the valve such that oxygen in the second storage space flows out of the second storage space through the second gas atmosphere module more than nitrogen in the second storage space.
7. The refrigerator of claim 6, wherein a storage temperature in the first storage space is higher than a storage temperature in the second storage space;
the valve is configured to enable the air extracting device to be communicated with the first air regulating membrane assembly for a first preset time period and then to be switched to enable the air extracting device to be communicated with the second air regulating membrane assembly, and enable the air extracting device to be communicated with the first air regulating membrane assembly for a second preset time period and then to be switched to enable the air extracting device to be communicated with the first air regulating membrane assembly, so that oxygen can be reduced for the second storage space alternatively or for the first storage space and the second storage space simultaneously.
8. The refrigerator according to claim 1,
the first storage space is a refrigerated storage compartment of the refrigerator, or the first storage space is arranged in the refrigerated storage compartment of the refrigerator; or
The first storage space is a temperature-changing storage compartment of the refrigerator.
9. The refrigerator according to claim 7,
the first storage space is a refrigerated storage compartment of the refrigerator, or the first storage space is arranged in the refrigerated storage compartment of the refrigerator;
the second storage space is a temperature-changing storage compartment of the refrigerator.
10. The refrigerator according to claim 3,
the inlet of the exhaust pipe is communicated with the outlet of the pump through a flexible pipe; the air extractor is a vacuum pump, the flexible pipe is a plastic pipe, a metal sheet is arranged on the exhaust pipe, and the metal sheet is thermally connected with the bimetallic strip heat conduction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021796463.0U CN213778311U (en) | 2020-08-25 | 2020-08-25 | Refrigerator with a door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021796463.0U CN213778311U (en) | 2020-08-25 | 2020-08-25 | Refrigerator with a door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213778311U true CN213778311U (en) | 2021-07-23 |
Family
ID=76902887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021796463.0U Active CN213778311U (en) | 2020-08-25 | 2020-08-25 | Refrigerator with a door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213778311U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865192A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
| CN113865191A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
-
2020
- 2020-08-25 CN CN202021796463.0U patent/CN213778311U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865192A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
| CN113865191A (en) * | 2021-10-18 | 2021-12-31 | 珠海格力电器股份有限公司 | Fresh-keeping refrigerator and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8161763B2 (en) | Method for controlling a compressor and a control valve of a refrigerator | |
| CN213778311U (en) | Refrigerator with a door | |
| CN110440502B (en) | Defrosting and humidifying device of air-cooled refrigerator and control method thereof | |
| CN101937247B (en) | Air cooling refrigerator as well as moisture-preservation control method and system thereof | |
| EP2778575A2 (en) | Active insulation hybrid dual evaporator with rotating fan | |
| JP2008514895A (en) | Reverse Peltier defrost system | |
| CN2909116Y (en) | Refrigerator with heating device | |
| CN204987626U (en) | Based on middle -size and small -size frostless freezer refrigerating plant of solution humidifying | |
| CN108444176B (en) | Refrigerator and control method thereof | |
| CN111436803A (en) | Showcase for refrigeration | |
| CN213273349U (en) | Refrigerator with a door | |
| JP7516568B2 (en) | Method for controlling defrosting of a refrigerator | |
| CN114111158B (en) | Refrigerator with a door | |
| CN213514582U (en) | Refrigerator with a door | |
| CN212378326U (en) | Refrigerator with a door | |
| CN213273354U (en) | Refrigerator with a door | |
| CN114111194B (en) | Refrigerator control method and refrigerator | |
| CN106016898B (en) | A kind of air-cooled compressor refrigeration refrigerating box and its moisturizing control method | |
| CN106813455A (en) | Improve the refrigerator and its control method of linear compressor stability | |
| CN201100809Y (en) | An energy-saving cool storage refrigeration system | |
| JP2001133112A (en) | Refrigerator | |
| CN213778315U (en) | Refrigerator with a door | |
| CN221099029U (en) | Refrigerating system and refrigerating equipment | |
| CN204854114U (en) | Refrigerating apparatus | |
| CN221099027U (en) | Refrigerating system and refrigerating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |