WO2018099459A1 - Ensemble pompe à air et dispositif de réfrigération - Google Patents

Ensemble pompe à air et dispositif de réfrigération Download PDF

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Publication number
WO2018099459A1
WO2018099459A1 PCT/CN2017/114210 CN2017114210W WO2018099459A1 WO 2018099459 A1 WO2018099459 A1 WO 2018099459A1 CN 2017114210 W CN2017114210 W CN 2017114210W WO 2018099459 A1 WO2018099459 A1 WO 2018099459A1
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WO
WIPO (PCT)
Prior art keywords
air pump
gas
air
pump assembly
oxygen
Prior art date
Application number
PCT/CN2017/114210
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English (en)
Chinese (zh)
Inventor
张�浩
夏恩品
何国顺
王胜飞
朱小兵
Original Assignee
青岛海尔股份有限公司
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Application filed by 青岛海尔股份有限公司 filed Critical 青岛海尔股份有限公司
Publication of WO2018099459A1 publication Critical patent/WO2018099459A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/0027—Pulsation and noise damping means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/10—Arrangements for mounting in particular locations, e.g. for built-in type, for corner type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/04—Treating air flowing to refrigeration compartments

Definitions

  • the invention relates to the technical field of refrigerator storage, in particular to an air pump assembly and a refrigerating and freezing device.
  • the modified atmosphere preservation technology generally refers to a technique for prolonging the storage life of a food by adjusting the gas atmosphere (gas composition ratio or gas pressure) of the enclosed space in which the storage is located, and the basic principle is: in a certain closed space.
  • a gas atmosphere different from the normal air component is obtained by various adjustment methods to suppress physiological and biochemical processes and microbial activities leading to spoilage of the stored matter (usually the foodstuff).
  • the modified atmosphere preservation will be specifically directed to a modified atmosphere preservation technique that adjusts the proportion of gas components.
  • normal air components include (by volume percent, hereinafter the same): about 78% nitrogen, about 21% oxygen, about 0.939% rare gases ( ⁇ , ⁇ , argon, krypton, xenon, ⁇ ), 0.031% of carbon dioxide, and 0.03% of other gases and impurities (for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc..
  • gases and impurities for example, ozone, nitrogen monoxide, nitrogen dioxide, water vapor, etc.
  • the nitrogen-enriched gas refers to a gas having a nitrogen content exceeding the nitrogen content in the above-mentioned normal air, for example, the nitrogen content may be 95. % to 99%, or even higher; and the nitrogen-rich and oxygen-poor fresh gas atmosphere refers to a gas atmosphere in which the nitrogen content exceeds the above-mentioned normal air nitrogen content and the oxygen content is lower than the oxygen content in the above-mentioned normal air.
  • modified atmosphere preservation technology dates back to 1821 when German biologists discovered that fruits and vegetables could reduce metabolism at low oxygen levels. But until now, due to the large size and high cost of nitrogen-making equipment traditionally used for gas-conditioning preservation, the technology is basically limited to use in various large-scale professional storage (the storage capacity is generally at least 30 tons). . It can be said that the appropriate gas regulation technology and corresponding equipment can economically reduce and quiet the air-conditioning system, making it suitable for home or individual users. It is a constant desire of technicians in the field of atmosphere preservation and preservation. A technical problem that can be successfully solved.
  • the modified atmosphere preservation technology needs to use an air pump to pump out oxygen, but the pump has a relatively high noise operation. Therefore, if the technology is applied to a refrigerator, how to reduce the noise of the air pump is also an urgent problem to be solved.
  • Another object of the present invention is to provide a refrigerating and freezing apparatus using the air pump assembly.
  • the invention provides an air pump assembly that includes:
  • each connecting tube is in a sealed box
  • Both the side and the outer end are pagoda-shaped joints for facilitating the setting of the hose;
  • the air pump is disposed inside the sealed box, and the air inlet pipe of the air pump is connected to one connecting pipe through a hose, and the air outlet pipe is connected to the other connecting pipe through the hose.
  • the sealing box is provided with two mounting through holes communicating with the inner and outer spaces thereof; and each connecting tube comprises: a main body tube passing through the mounting through hole to communicate the inner space of the sealing box; being fixed to the main body tube and abutting against a stop piece of the inner wall of the sealing case; and a nut screwed to the main body tube and abutting against the outer wall of the sealing case.
  • the air pump assembly further includes: a mounting bottom plate, the rear surface of the upper surface has an upwardly extending stop portion, the front surface of the stopping portion is recessed rearward to form a positioning recess; and the sealing box is located on the upper side of the mounting bottom plate And the rear portion has a positioning convex portion protruding rearward, the positioning convex portion is engaged with the positioning concave portion, and the front portion of the sealing box is locked to the mounting bottom plate.
  • the mounting bottom plate is a sheet metal piece
  • the stopping portion is an upward flange formed by the mounting bottom plate
  • the positioning concave portion is a through hole formed in the flange.
  • the front portion of the sealing box is provided with a screw hole opposite to the threaded hole formed on the mounting base plate to lock the sealing box to the mounting bottom plate by screws.
  • a plurality of damping pads are mounted on the mounting base.
  • the air pump assembly further includes a mounting frame disposed inside the casing and disposed between the inner wall of the casing and a plurality of damping blocks; and the air pump is fixed in the mounting frame.
  • the sealed casing includes a casing defining an accommodation space having an upper opening to accommodate the air suction pump; and an upper cover configured to seal the upper opening of the closure.
  • the present invention provides a refrigerating and freezing apparatus comprising:
  • a tank body defining a storage space and a compressor compartment therein, wherein the storage space is provided with a storage container, and the storage container has a gas-conditioning space;
  • a gas regulating membrane module having at least one gas regulating membrane and an oxygen-rich gas collecting chamber, wherein a surrounding space is in communication with the modified atmosphere, the gas regulating membrane module being configured such that oxygen in the space flow around the gas regulating membrane module is relative to Nitrogen in the airflow around the air-conditioning membrane module passes through the gas-regulating membrane into the oxygen-rich gas collection chamber;
  • the air conditioning membrane module further includes a support frame having first and second surfaces parallel to each other, and the support frame is formed with a first extension on the first surface, a second surface, and a through support
  • the frame is configured to connect the plurality of airflow channels of the first surface and the second surface, and the plurality of airflow channels jointly form an oxygen-rich gas collecting chamber; and the at least one gas regulating film is two planar air-conditioning membranes respectively laid on the support frame On a surface and a second surface.
  • the air pump is disposed inside the sealed box, and the sealed box can block the noise of the air pump to propagate outward, thereby achieving a good noise reduction effect.
  • two connecting pipes are arranged on the sealing box, and both ends of the connecting pipe are pagoda-shaped joints, so that the air inlet pipe and the air outlet pipe of the air pump can be connected to the connecting pipe by the hose, which facilitates the connection and disassembly of the pipeline. The process also facilitates the disassembly process of the pump.
  • the connecting tube includes a main body tube, a stopper piece and a nut, so that it can be conveniently embedded in the sealing case, and the connection is very tight.
  • the mounting bottom plate can be fixed in the refrigerating and freezing device, and then the sealing box is mounted on the mounting bottom plate.
  • the air pump needs to be replaced or repaired, only the sealing box is removed. There is no need to disassemble the mounting base.
  • the positioning protrusion at the rear of the sealing box is first inserted into the positioning recess on the mounting bottom plate, and then the front portion of the sealing box is detachably connected to the mounting bottom plate.
  • the front part of the sealed box can be fastened to the mounting base plate by only one screw, and the disassembly process can be completed by simply screwing one screw, which is very simple to operate.
  • the refrigerating and freezing device of the present invention has a gas regulating membrane module and an air pump, and the air pump can make the pressure on one side of the air conditioning membrane smaller than the other side, so that nitrogen-rich oxygen is formed in the atmosphere of the modified atmosphere to facilitate food.
  • the fresh gas atmosphere reduces the oxygen content of the fruit and vegetable storage space, reduces the aerobic respiration of fruits and vegetables, ensures the basic respiration, and prevents the anaerobic respiration of fruits and vegetables, thereby achieving the long-term preservation of fruits and vegetables.
  • the air pump is disposed in the compressor chamber without additionally occupying other space, particularly the storage space, so that the extra volume of the refrigerating and freezing device is not increased, and the structure of the refrigerating and freezing device can be compact.
  • the refrigerating and freezing apparatus of the present invention not only has a good fresh-keeping effect, but also has low rigidity and strength requirements for a storage container or the like, and has low requirements, and the cost is also low. Moreover, the above technical problems that the technicians in the field of modified atmosphere preservation have been eager to solve but have not been successfully solved have been solved. Refrigerated and refrigerated units are not only small in size but also low in noise, making them especially suitable for home and personal use. The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the ⁇
  • FIG. 1 is a schematic structural view of an air pump assembly according to an embodiment of the present invention.
  • Figure 2 is an exploded perspective view of the air pump assembly of Figure 1 after the sealing case is detached from the mounting base;
  • Figure 3 is an exploded perspective view of the air pump assembly of Figure 1;
  • Figure 4 is a schematic structural view of the connecting pipe of Figure 3;
  • Figure 5 is another exploded schematic view of the air pump assembly of Figure 1;
  • Figure 6 is a schematic view showing the cooperation structure of the air pump and the casing
  • Figure 7 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • Figure 8 is a schematic structural view of another perspective of the structure shown in Figure 7;
  • Figure 9 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • Figure 10 is a schematic exploded view of the structure shown in Figure 9;
  • Figure 11 is an exploded view of a gas regulating membrane module in a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • FIG. 1 is a schematic structural view of an air pump assembly according to an embodiment of the present invention
  • FIG. 2 is an exploded perspective view of the air pump assembly of FIG. 1 after the seal box is detached from the mounting base
  • FIG. 3 is an air pump assembly of FIG.
  • FIG. 4 is a schematic structural view of the connecting pipe of FIG. 3.
  • an embodiment of the present invention provides an air pump assembly 10, which can be applied to a refrigerating and freezing device such as a refrigerator, for extracting oxygen in a sealed space to create nitrogen-rich and oxygen-poor. Fresh gas atmosphere.
  • the air pump assembly 10 can generally include a sealed box 200 and an air pump 300.
  • the inside of the sealed casing 200 defines an accommodation space, and the air pump 300 is disposed inside the sealed casing 200. Further, two sealing pipes 510, 520 for communicating the inner and outer spaces of the sealed casing 200 are embedded in the sealed casing 200.
  • Each of the connecting tubes at the inner and outer ends of the sealed casing 200 is a pagoda-shaped joint for facilitating the setting of the hose.
  • the intake pipe 301 of the air pump 300 is connected to the connecting pipe 510 through a hose 310, and the air outlet pipe 302 of the air pump 300 is connected to the connecting pipe 520 through a hose 320. This makes it convenient to connect and disassemble the pipeline when the air pump 300 is disassembled.
  • Both ends of the connecting pipe 510 are a pagoda joint 513.
  • the pagoda joint 513 is formed by stacking a plurality of coaxial frustums, and the smaller end of each truncated cone is disposed outwardly to manually fit the hose thereon.
  • the connecting tube 510 includes a main body tube, a stopper piece 511, and a nut 515.
  • the sealing box 200 is provided with two mounting through holes 2101, 2102 (which can be opened on the casing 210 as shown in the figure, and can also be opened on the upper cover 220).
  • the main body tube includes a pagoda joint 513 at its both ends and an intermediate pipe section 512.
  • the main body tube passes through the mounting through hole 2101 to communicate the inner and outer spaces of the seal case 200.
  • the stopper piece 511 is fixed to the main body tube and abuts against the inner wall of the sealing case 200, and the nut 515 is screwed to the main body tube and abuts against the outer wall of the sealing case 200.
  • the nut 515 is tightened to clamp the wall of the seal case 200 together with the stopper piece 511, so that the connection pipe 511 is very firmly mounted on the seal case 200, and the disassembly is also very convenient.
  • a rubber washer 530 may be disposed between the nut 515 and the outer wall of the seal case 200.
  • the stop piece 511 and the nut 515 may both have a hexagonal structure to facilitate disassembly and assembly with two wrenches.
  • Figure 5 is another exploded perspective view of the air pump assembly of Figure 1.
  • the sealed casing 200 may include a casing 210 having an upper opening and an upper cover 220 for closing the upper opening, the casing 210 and the upper cover 220 collectively defining The sealed space of the air pump 300 is sealed between the two by an O-ring 230.
  • the upper cover 220 has a square casing shape, and each of the four corners is provided with a screw hole 221, and a screw hole 211 is disposed at each of the four corners of the upper edge of the casing 210.
  • Each of the screws 239 is screwed through the screw holes 221 to the threaded holes 211 to lock the upper cover 220 to the casing 210.
  • the air pump assembly 10 further includes a mounting base 100.
  • the mounting base plate 100 is for supporting the seal case 200 upward, and the rear surface of the upper surface has an upwardly extending stopper portion 110.
  • the front surface of the stopper portion 110 is recessed backward to form a fixed The recessed portion 112.
  • the rear portion of the seal case 200 has a positioning projection 212 that projects rearward.
  • the mounting base 100 is first fixed to the refrigerating and freezing device, and the sealed box 200 containing the air pump 300 is placed on the mounting base 100, and the sealing box 200 is pushed backward to make the positioning protrusion.
  • the portion 212 is snapped into the positioning recess 112, and finally the front portion of the sealed casing 200 is locked with the mounting base 100.
  • the air pump assembly 10 is disassembled, it is only necessary to unlock the front portion of the seal case 200 from the mounting base 100 to pull the seal case 200 forward without disassembling the mounting base plate 100. It can be seen from the above that the disassembly and assembly process of the air pump assembly 10 of the embodiment of the present invention is very convenient.
  • a plurality of vibration-damping pads 400 may be mounted on the mounting base plate 100.
  • the number of the vibration-damping pads 400 is preferably four, and the four vibration-damping pads 400 are mounted in the foot pad mounting holes 120 formed at the four corners of the mounting base plate 100, as shown in FIG.
  • the sealed enclosure 200 is preferably locked to the mounting base 100 by screws.
  • the front portion of the sealing case 200 is provided with an ear plate 214.
  • the ear plate 214 is provided with a screw hole
  • the mounting base plate 100 is provided with a threaded hole 130 opposite to the screw hole.
  • the screw 215 is screwed onto the threaded hole 130 through the screw hole.
  • the mounting base 100 can be a sheet metal member, and the aforementioned stop portion 110 is an upward flange formed from the mounting base plate 100 to simplify the manufacturing process.
  • the aforementioned positioning recess 112 may be a through hole formed in the flange.
  • the through hole may be a non-circular through hole, and the positioning convex portion 212 has a structure conforming to the shape of the non-circular through hole, so that the degree of freedom of the sealing case 200 can be more comprehensively restrained, and the sealed case 200 is more stable.
  • the stopping portion 110 can also be a separately formed component fixed on the mounting base plate 100, and the positioning recessed portion 112 can also be a circular or any other shape of the through hole, and can also be a blind hole.
  • Fig. 6 is a schematic view showing the cooperation structure of the air pump and the casing.
  • the casing 210 is internally provided with a mounting frame 240.
  • the mounting frame 240 is connected to the inner wall of the sealing box 200 through a plurality of damping blocks, and the air pump 300 is fixed inside the mounting frame 240. . This is to reduce the vibration and noise of the air pump 300 during operation.
  • the bottom of the mounting frame 240 is provided with two intermediate openings of the vibration damping pad 217, and the damping pad 217 is sleeved on the positioning post 215 of the bottom wall of the casing 210.
  • a circular damping pad 219 is disposed on each of the front and rear sides of the mounting frame 240, and is inserted into the front and rear latching slots 216 inside the casing 210.
  • a damping pad 218 is fixed to each of the lateral sides of the mounting frame 240.
  • the air pump 300 is between the vibration damping pads 217, 218, 219 and is fastened to the mounting frame 240 by screws. As such, the vibration of the air pump 300 during operation will be transmitted to the vibration damping blocks 217, 218, 219 through the mounting frame 240 to be buffered for vibration damping purposes.
  • FIG. 7 is a refrigerated and refrigerated package in accordance with one embodiment of the present invention.
  • FIG. 8 is a schematic structural view of another perspective view of the structure shown in FIG. 7;
  • FIG. 9 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;
  • Fig. 11 is an exploded view of the gas regulating membrane module in the refrigerating and freezing apparatus according to an embodiment of the present invention.
  • the refrigerating and freezing apparatus may include a casing 80, a door body, a gas regulating membrane module 30, the aforementioned air pumping unit 10, and a refrigeration system.
  • the air pump assembly 10 can be disposed in the compressor housing 13 and the mounting base 100 is mounted to the bottom wall of the compressor housing 13 via the vibration damping foot pad 400.
  • the intake end of the air pump 300 is in communication with the oxygen-enriched gas collection chamber of the gas regulating membrane module 30 via a line 50 to evacuate gas that has penetrated into the oxygen-rich gas collection chamber to the outside of the storage container.
  • the air pump 300 is pumped outward to make the pressure of the oxygen-rich gas collecting chamber smaller than the pressure of the surrounding space of the air-conditioning membrane module 30, and further, the oxygen in the space around the air-conditioning membrane module 30 can be made. Enter the oxygen-rich gas collection chamber. Since the air-conditioning space is connected to the space around the air-conditioning membrane module 30, the air in the air-conditioning space enters the space around the air-conditioning membrane module 30, so that oxygen in the air in the atmosphere can be made to enter the oxygen-rich gas. The chamber is collected to obtain a gas atmosphere rich in nitrogen and oxygen in the atmosphere of the modified atmosphere to facilitate food preservation.
  • the refrigerating and freezing device of the invention can form a gas atmosphere rich in nitrogen and oxygen in the atmosphere of the fresh air conditioning to promote food preservation, and the gas atmosphere reduces the oxygen content of the fruit and vegetable storage space, thereby reducing the aerobic respiration intensity of the fruits and vegetables, and ensuring the foundation.
  • the respiration function prevents the fruits and vegetables from undergoing anaerobic respiration, thereby achieving the purpose of long-term preservation of fruits and vegetables.
  • the gas atmosphere also has a large amount of gas such as nitrogen gas, and does not reduce the cooling efficiency of articles in the atmosphere of the modified atmosphere, so that fruits and vegetables can be effectively stored.
  • the air pump 300 is disposed in the compressor compartment 13 and can fully utilize the space of the compressor compartment 13 without occupying other places, so that the extra volume of the refrigerating and freezing apparatus is not increased, and the structure of the refrigerating and freezing apparatus can be made compact. Moreover, the rigidity and strength of the casing 80 and the like are low, and the implementation requirements are low, and the cost is also low.
  • the refrigerating and freezing device of the present invention well solves the above technical problems that the technicians in the field of modified atmosphere preservation have been eager to solve but have not been successfully solved.
  • the refrigerating and freezing apparatus of the present invention is not only small in size but also low in noise, and is particularly suitable for home and personal use.
  • the drawer body 20 may be provided with a plurality of micropores, and the storage space 201 and the modified atmosphere are connected via a plurality of micropores.
  • the micropores may also be referred to as gas pressure balance pores, and each micropore may be micropores of the order of millimeters, for example, each micropore has a diameter of 0.1 mm to 3 mm, preferably 1 mm, 1.5 mm, or the like.
  • the drawer cylinder 20 may not be provided with micropores. Even in this case, a large amount of gas such as nitrogen gas is present in the atmosphere of the modified atmosphere, and the user does not need to open the drawer body 28 when the drawer body 28 is opened. Too much effort, compared to the existing vacuum storage room, it will save a lot of effort.
  • the storage space 201 is a refrigerated space having a storage temperature generally between 2 ° C and 10 ° C, preferably between 3 ° C and 8 ° C.
  • the box 80 may further define a freezing space 12 and a temperature changing space 27.
  • the freezing space 12 is disposed below the storage space 201, and the temperature changing space 27 is disposed between the freezing space 12 and the refrigerating space.
  • the temperature within the freezing space 12 is typically in the range of -14 ° C to -22 ° C.
  • the variable temperature space 27 can be adjusted as needed to store the appropriate food.
  • the compressor compartment 24 is preferably disposed behind the lower portion of the freezing space 12.
  • the storage space 201 may also be a freezing space or a temperature changing space, that is, the temperature range of the storage space 201 may be controlled at -14 ° C to -22 ° C or adjusted according to requirements. .
  • the air conditioning membrane module 30 can be disposed on the barrel wall of the drawer body 20.
  • the air conditioning membrane module 30 can be in the form of a flat plate and can be preferably and horizontally disposed on the top wall of the drawer body 20.
  • a receiving chamber 22 is disposed in the top wall of the drawer cylinder 20 to accommodate the air conditioning membrane module 30.
  • at least one first vent hole 23 and a second vent hole 24 are formed in a wall surface between the accommodating cavity of the top wall of the drawer cylinder 20 and the atmosphere fresh-keeping space.
  • the at least one first venting opening 23 is spaced apart from the at least one second venting opening 24 to respectively communicate the receiving chamber and the modified atmosphere at different positions.
  • the first vent hole 23 and the second vent hole 24 are both small holes, and the number may be plural.
  • the inside of the top wall of the drawer body 20 has a recessed groove.
  • the air conditioning membrane module 30 is disposed in a recessed groove of the top wall of the drawer body 20.
  • Line 50 can include a vertical tube section.
  • the vertical pipe section is disposed at the rear of the storage space 201, and the lower end of the vertical pipe section communicates with the inlet of the air pump 300, and the upper side of the vertical pipe section communicates with the oxygen-rich gas collection chamber of the gas regulating membrane module 30.
  • the vertical pipe section can be disposed adjacent to the side shell and the backboard of the box body 80, and the vertical pipe section can be provided with a heat insulating sleeve or a heat insulating tube to prevent the cold amount of oxygen in the vertical pipe section from being transmitted to the side shell and the backboard, thereby preventing Produces condensation.
  • the chilling and freezing device may further include a fan 60, and the fan 60 may be disposed in the accommodating chamber and configured to promote the atmosphere of the conditioned space.
  • the gas enters the accommodating chamber 22 via the first vent hole 23, and the gas in the accommodating chamber 22 enters the conditioned space through the second vent hole 24. That is to say, the fan 60 can cause the gas of the modified atmosphere to be returned to the modified atmosphere through the at least one first vent 23, the accommodating cavity and the at least one second vent 24 in sequence.
  • the fan 60 is preferably a centrifugal fan disposed at the first venting opening 23 in the accommodating chamber 22. That is, the centrifugal fan is located above the at least one first venting opening 23, and the axis of rotation is vertically downward, and the air inlet is directed to the first venting opening 23.
  • the air outlet of the centrifugal fan can face the air conditioning membrane module 30.
  • the air conditioning membrane module 30 is disposed above the at least one second venting opening 24 such that each of the air conditioning membranes of the air conditioning membrane module 30 is parallel to the top wall of the drawer cylinder 20. At least one first venting opening 23 is provided at the front of the top wall, and at least one second venting opening 24 is provided at the rear of the top wall.
  • the centrifugal fan is disposed at the front of the accommodating chamber 22, and the air conditioned membrane module 30 is disposed at the rear of the accommodating chamber 22.
  • the top wall of the drawer cylinder 20 includes a main The plate portion 25 and the cover portion 26 are formed with a recessed portion in a partial portion of the main plate portion 25, and the cover portion 26 is detachably covered on the recessed portion to form the accommodating cavity 22.
  • the main plate portion 25 may be integrally formed with the side wall, the bottom wall, and the rear wall of the drawer body 20.
  • the air conditioning membrane module 30 may be in the form of a flat plate, and the air conditioning membrane module 30 may further include a support frame 32.
  • the air-conditioning membranes 31 may be two, mounted on both sides of the support frame 32 such that the two air-conditioning membranes 31 and the support frame 32 together enclose an oxygen-rich gas collection chamber.
  • the support frame 32 may include a frame, a rib plate and/or a flat plate disposed in the frame, and an air flow passage between the ribs, between the ribs and the flat plate, the surface of the rib plate, and the surface of the flat plate. Grooves may be formed in the upper portion to form an air flow passage.
  • the ribs and/or the flat plate may increase the structural strength and the like of the air-conditioning membrane module 30.
  • the support frame 32 has first and second surfaces parallel to each other, and the support frame 32 is formed to extend on the first surface, extend on the second surface, and penetrate the support frame 32 to communicate with the first a plurality of gas flow channels of the surface and the second surface, the plurality of gas flow channels together form an oxygen-rich gas collecting chamber; at least one gas regulating film 31 is two planar gas regulating films respectively laid on the first surface of the support frame 32 and On the surface.
  • the support frame 32 includes a venting aperture 33 in communication with the aforementioned at least one airflow passageway disposed on the rim to allow oxygen in the oxygen-rich gas collection chamber to be output.
  • the air suction hole 33 is in communication with the air pump 300.
  • the air vent 33 may be disposed on the long edge of the frame or on the short edge of the frame to be determined according to the orientation of the air conditioning film assembly 30 or actual design requirements, for example, the implementation shown in FIGS. 9 and 10. In the example, the air vent 33 can be placed on the long edge of the frame.
  • the air-conditioning film 31 is first attached to the frame by the double-sided tape 34, and then sealed by the sealant 35.
  • the support frame 32 can include a bezel, a plurality of first ribs, and a plurality of second ribs.
  • the plurality of first ribs are longitudinally spaced apart inside the frame and extend in the lateral direction, and one side surface of the plurality of first ribs forms a first surface.
  • a plurality of second ribs are laterally spaced apart and extend in a longitudinal direction on the other side surface of the plurality of first ribs, and a side surface of the plurality of second ribs away from the first rib forms a second surface .
  • the support frame 32 of the present invention is provided with a plurality of first ribs extending in the longitudinal direction and extending in the lateral direction inside the frame and a plurality of sections extending laterally and longitudinally on one side surface of the plurality of first ribs.
  • the two ribs thus ensure the continuity of the air flow passage on the one hand, and greatly reduce the volume of the support frame 32 on the other hand, and greatly enhance the strength of the support frame 32.
  • the above structure of the support frame 32 ensures that the air-conditioning membrane 31 can obtain sufficient support, and can maintain a good flatness even when the negative pressure inside the oxygen-rich gas collection chamber is large, and the gas-regulating film is ensured. The service life of assembly 30.
  • the plurality of first ribs may include a plurality of first narrow ribs and a plurality of first wide ribs. Wherein a plurality of first wide ribs are spaced apart, and a plurality of first narrow ribs are disposed between the adjacent two first wide ribs.
  • the plurality of second ribs may include: a plurality of second narrow ribs and a plurality of second wide ribs, and the plurality of second wide ribs are spaced apart, adjacent to the two A plurality of second narrow rib plates are disposed between the two wide ribs.
  • each of the first wide ribs is recessed inwardly from a side surface thereof on which the first surface is formed to form a first groove; a side surface from which the second wide rib is formed to form the second surface
  • the second groove is recessed inwardly to improve the connectivity of the internal mesh structure while ensuring that the thickness of the support frame 32 is small (or small).
  • a portion of the surface of each of the first wide ribs facing away from the first surface extends toward the second rib to be flush with the second surface, and the portion of the surface that is flush with the second surface is inward
  • the recess forms a third trench; the third trench communicates with a portion where the second trench intersects to form a cross trench.
  • a portion of the surface of the at least one second wide rib of the plurality of second wide ribs facing away from the second surface extends toward the first rib to be flush with the first surface, and the portion of the surface that is flush with the first surface Forming a fourth trench inwardly; wherein the fourth trench communicates with a portion where the first trench intersects to form a cross trench.
  • the inner surface of the cover portion 26 may extend downwardly from the plurality of air guiding ribs to guide the airflow from the fan 60 in the receiving chamber.
  • the inner surface of each of the air-conditioning membranes 31 of the gas-regulating membrane module 30 is separated from the outer surface of the oxygen-rich gas collecting chamber.
  • the plurality of air guiding ribs may be divided into two groups, and the second group of air guiding ribs are symmetrically disposed with respect to one plane of the first group of air guiding ribs and the first group of air guiding ribs.
  • Each set of air guiding ribs includes a first air guiding rib, at least one second air guiding rib, and at least one third air guiding rib.
  • the first air guiding rib extends from a side of the air outlet of the centrifugal fan to a side of the receiving cavity and extends to a laterally outer side of the air conditioning film assembly 30.
  • Each of the second air guiding ribs is disposed between the two first air guiding ribs and between the air conditioning film assembly 30 and the centrifugal fan.
  • Each of the third air guiding ribs is located on a lateral outer side of the air conditioning membrane module 30 to direct airflow from the lateral sides of the air conditioning membrane module 30 into the air conditioning membrane module 30 and the bottom or top surface of the receiving chamber. The gap between them.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)

Abstract

L'invention concerne un ensemble pompe à air comprenant un boîtier d'étanchéité (200), sur lequel deux conduites de raccordement (510, 520) sont incorporées pour faire communiquer l'espace interne du boîtier d'étanchéité (200) avec l'espace externe du boîtier d'étanchéité (200), des parties d'extrémité, situées au niveau du côté interne et du côté externe du boîtier d'étanchéité (200), chacune des conduites de raccordement (510, 520) étant pourvue séparément d'un joint de type pagode (513) permettant de faciliter l'agencement emmanché de tuyaux (310, 320); une pompe à air (300) disposée à l'intérieur du boîtier d'étanchéité (200), une conduite d'entrée d'air (301) de la pompe à air (300) est raccordée à la conduite de raccordement (510) au moyen du tuyau (310) et une conduite de sortie d'air (302) est raccordée à la conduite de raccordement (520) au moyen du tuyau (320). L'ensemble pompe à air présente un faible bruit de fonctionnement. Le processus de démontage dans un dispositif de réfrigération est pratique. La conduite d'entrée d'air et la conduite de sortie d'air de la pompe à air peuvent être facilement sorties du boîtier d'étanchéité. L'invention concerne également un dispositif de réfrigération.
PCT/CN2017/114210 2016-12-02 2017-12-01 Ensemble pompe à air et dispositif de réfrigération WO2018099459A1 (fr)

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CN201611097716.3A CN106593822B (zh) 2016-12-02 2016-12-02 冷藏冷冻装置
CN201611097716.3 2016-12-02

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CN114061223A (zh) * 2020-08-10 2022-02-18 海信（山东）冰箱有限公司 一种冰箱及管路安装方法
WO2024046385A1 (fr) * 2022-09-01 2024-03-07 青岛海尔电冰箱有限公司 Appareil de réfrigération et de congélation

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CN108195126B (zh) * 2017-12-11 2020-07-24 青岛海尔股份有限公司 具有一体成型的气管构件的真空组件及冰箱
CN108253701B (zh) * 2017-12-11 2020-05-26 青岛海尔股份有限公司 具有板状隔音构件的真空组件及冰箱
CN108253716B (zh) * 2017-12-11 2020-03-17 青岛海尔股份有限公司 密封件、真空组件及冰箱
CN108775567B (zh) * 2018-06-27 2019-12-03 厦门华联电子股份有限公司 一种球泡灯螺口灯头的密封性预处理方法
CN212179335U (zh) * 2020-05-11 2020-12-18 海信（山东）冰箱有限公司 冰箱
CN111765692B (zh) * 2020-07-01 2022-03-15 海信（山东）冰箱有限公司 冰箱
CN115232713A (zh) * 2022-09-02 2022-10-25 安徽大学 一种便携式去除培养基中氧气的实验室简易装置

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CN114061223A (zh) * 2020-08-10 2022-02-18 海信（山东）冰箱有限公司 一种冰箱及管路安装方法
CN114061223B (zh) * 2020-08-10 2023-04-14 海信冰箱有限公司 一种冰箱及管路安装方法
WO2024046385A1 (fr) * 2022-09-01 2024-03-07 青岛海尔电冰箱有限公司 Appareil de réfrigération et de congélation

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