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WO2018099460A1 - Ensemble pompe d'extraction d'air et dispositif de réfrigération et de congélation - Google Patents

Ensemble pompe d'extraction d'air et dispositif de réfrigération et de congélation Download PDF

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Publication number
WO2018099460A1
WO2018099460A1 PCT/CN2017/114211 CN2017114211W WO2018099460A1 WO 2018099460 A1 WO2018099460 A1 WO 2018099460A1 CN 2017114211 W CN2017114211 W CN 2017114211W WO 2018099460 A1 WO2018099460 A1 WO 2018099460A1
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WO
WIPO (PCT)
Prior art keywords
air
gas
air pump
pump assembly
connecting pipe
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.)
Ceased
Application number
PCT/CN2017/114211
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English (en)
Chinese (zh)
Inventor
夏恩品
张�浩
何国顺
王胜飞
朱小兵
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Co Ltd
Original Assignee
Qingdao Haier Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Co Ltd filed Critical Qingdao Haier Co Ltd
Publication of WO2018099460A1 publication Critical patent/WO2018099460A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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:
  • the bottom plate is mounted, and a rear portion of the upper surface has an upwardly extending stop portion, and a front surface of the stopper portion is recessed rearward to form a positioning concave portion Crash
  • a sealed box having an intake connecting pipe and an outlet connecting pipe connecting the inner and outer spaces thereof, the intake connecting pipe and the outlet connecting pipe are integrally formed with the sealing box, and the rear portion of the sealing box has a positioning convex portion protruding rearward , the sealing box is located on the upper side of the mounting bottom plate, the positioning convex portion is locked into the positioning concave portion, and the front portion of the sealing box is locked to the mounting bottom plate;
  • the air pump has an axis extending in a horizontal direction inside the sealed box, and an air inlet thereof is connected to the air inlet connecting pipe through a hose, and an air outlet is connected to the air outlet connecting pipe through a hose.
  • the mounting bottom plate is a sheet metal piece, and the stopping portion is an upward flange formed by the mounting bottom plate; and the positioning concave portion is a through hole formed in the flange.
  • the sealed box is made of plastic.
  • the front portion of the sealing box is provided with a screw hole opposite to the threaded hole formed in the mounting base plate to lock the sealing box to the mounting base plate by screws.
  • the sealed casing includes a casing defining an accommodation space having an upper opening to accommodate an air suction pump, the intake connection pipe and the outlet connection pipe being formed on a front wall of the casing; and an upper cover configured to seal the seal Cover the side opening.
  • the upper cover is detachably coupled to the case by a plurality of snap assemblies, each of the buckle assemblies comprising: a snap protrusion protruding outward from an outer wall of the upper cover; and upward from an upper edge of the outer wall of the outer cover
  • the extended latching plate has a card hole formed therein, and when the upper cover is mounted on the box body, the latching protrusion is inserted into the card hole.
  • 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.
  • a plurality of damping pads are mounted on the mounting base.
  • 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 blocks the noise from propagating when the air pump is running.
  • the sealing box has an intake connecting pipe and an outlet connecting pipe integrally formed therewith, and the air inlet and the air outlet of the air pump are detachably connected to the air inlet connecting pipe and the air outlet connecting pipe respectively, which is extremely convenient Sealed box The manufacturing process and the disassembly process of the pump.
  • the occupied height space can be reduced, thereby reducing the height of the sealed box to be suitably placed in the refrigerating and freezing apparatus.
  • 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. In this way, not only the stable installation of the sealing box relative to the mounting bottom plate is realized, but also the front part of the sealing box needs to be operated during disassembly and assembly, which is very convenient.
  • the front portion of the seal case can be fastened to the mounting base plate by only one screw, so that the disassembly process can be completed only by screwing one screw, and the operation is very simple.
  • the air pump is connected to the external air inlet pipe and the external air outlet pipe through the air inlet pipe joint and the air outlet pipe joint embedded in the casing, and the pipe is easily disassembled and assembled, and the pipe can be conveniently arranged.
  • the air pump is taken out of the box.
  • 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.
  • FIG. 1 is a schematic structural view of an air pump assembly according to an embodiment of the present invention.
  • Figure 2 is an enlarged view of a portion A of Figure 1;
  • Figure 3 is an exploded perspective view of the air pump assembly of Figure 1;
  • Figure 4 is a schematic view showing the cooperation structure of the air pump and the casing
  • Figure 5 is a schematic partial structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention.
  • Figure 6 is a schematic structural view of another perspective of the structure shown in Figure 5;
  • 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 exploded view of the structure shown in Figure 7;
  • FIG. 9 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 enlarged view of a portion A of FIG. 1
  • FIG. 3 is an exploded perspective view of the air pump assembly of FIG. Schematic diagram of the cooperation structure.
  • 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 a nitrogen-rich and oxygen-poor fresh gas. Atmosphere.
  • the air pump assembly 10 can generally include a mounting base 100, a sealed box 200, and an air pump 300.
  • the air pump 300 is disposed inside the sealed box 200.
  • the sealed box 200 can largely block the noise from propagating outward.
  • the seal case 200 has an intake connection pipe 510 and an outlet connection pipe 520 that communicate with the inner and outer spaces thereof, and the intake connection pipe 510 and the outlet connection pipe 520 are integrally formed with the seal case 200.
  • the sealed box 200 is preferably made of plastic, and the intake connecting tube 510 and the outlet connecting tube 520 are integrally injection molded with the sealed box 200.
  • the intake port of the air pump 300 is connected to the intake connecting pipe 510 through a hose 310, and the air outlet is connected to the air outlet connecting pipe 520 through a hose 320 (see Fig. 4).
  • the external intake pipe 710 and the external intake pipe 720 connected to the outside are respectively sleeved on the intake pipe 510 and the outlet pipe 520.
  • the axis of the air pump 300 is extended in the horizontal direction (if a horizontal air pump is used), the occupied height space can be reduced, and the height of the sealed box 200 can be reduced to be suitably placed in the refrigerating and freezing device. .
  • 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 110 is recessed rearward to form a positioning recess 112.
  • the rear portion of the seal case 200 has a positioning projection 212 that projects rearward.
  • the sealing box 200 is located on the upper side of the mounting base 100, the positioning protrusion 212 is engaged with the positioning recess 112, and the front portion of the sealing box 200 is locked to the mounting base 100, so that the tightness between the sealing box 200 and the mounting base 100 can be achieved. solid.
  • 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 installed in the safety
  • the floor mat mounting holes 120 are formed at the four corners of the bottom plate 100.
  • 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 may 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 polygonal through hole, and the positioning convex portion 212 is a polygonal structure matching the shape of the polygonal through hole. As shown, the through hole and the positioning convex portion 212 are square structures, so as to be able to constrain the sealed box more comprehensively. The degree of freedom of 200 makes the sealed box 200 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.
  • the sealed enclosure 200 is assembled from a plurality of sections.
  • the sealed casing 200 includes a casing 210 and an upper cover 220.
  • the casing 210 defines an accommodation space having an upper side opening for accommodating the air pump 300.
  • the upper cover 220 is configured to seal the upper side opening of the cover case 210.
  • An O-ring 230 may be disposed between the upper cover 220 and the casing 210 for sealing.
  • the intake connecting pipe 510 and the outlet connecting pipe 520 may be disposed on the casing 210 or disposed on the upper cover 220.
  • the upper cover 220 is preferably detachably coupled to the case 210 by a plurality of snap assemblies.
  • Each of the latching assemblies includes a latching protrusion 221 protruding outwardly from an outer wall of the upper cover 220 and a latching plate 212 extending upward from an upper edge of the outer wall of the casing 210.
  • the latching plate 212 defines a latching hole 211.
  • a mounting frame 240 is disposed inside the casing 210, and a plurality of damping blocks are disposed between the mounting frame 240 and the inner wall of the sealing box 200, and the air pump 300 is fixed to the mounting frame. 240 internal. 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.
  • FIGS. 5 to 9 the refrigerating and freezing apparatus according to the embodiment of the present invention may include a casing 80, a door body, a gas regulating membrane module 30, the aforementioned air pumping unit 10, and a refrigeration system.
  • a storage space 201 and a compressor compartment 13 are defined in the casing 80.
  • the door body is used to open or close the storage space 201.
  • a storage container is disposed in the storage space 201, and the storage container has a modified atmosphere.
  • the atmosphere fresh-keeping space can be a closed space or an approximately closed space.
  • the storage container is a drawer assembly.
  • the storage container can include a drawer body 20 and a drawer body 28.
  • the drawer cylinder 20 may have a forward opening and is disposed in the storage space 201, and may be specifically disposed at a lower portion of the storage space 201.
  • the drawer body 20 can also be disposed in the middle or upper portion of the storage space 201.
  • the drawer body 28 is slidably disposed within the drawer body 20 to operatively withdraw and inwardly insert the drawer body 20 from the forward opening of the drawer body 20.
  • the drawer body 28 can have a drawer end cover that can cooperate with the opening of the drawer cylinder 20 to seal the air conditioning space.
  • the storage container can include a barrel and a small door configured to open or close the barrel.
  • the refrigeration system may be a refrigeration cycle system composed of a compressor, a condenser, a throttle device, and an evaporator.
  • the compressor can be installed in the compressor compartment 13.
  • the evaporator is configured to provide cooling directly or indirectly into the storage space 201.
  • the refrigerating and freezing device is a domestic compression type direct cooling refrigerator, the evaporator may be disposed inside the casing 80.
  • the casing 80 When the refrigerating and freezing device is a domestic compression air-cooled refrigerator, the casing 80 further has an evaporator chamber therein, and the evaporator chamber communicates with the storage space 201 through the air passage system, and an evaporator is arranged in the evaporator chamber, and the outlet is provided with The fan is circulated and cooled to the storage space 201.
  • the gas regulating membrane module 30 has at least one gas regulating membrane 31 and an oxygen-rich gas collecting chamber, and the surrounding space thereof communicates with the modified atmosphere.
  • the gas-regulating membrane module 30 can be configured such that oxygen in the space airflow around the gas-regulating membrane module 30 passes through the gas-regulating membrane 31 more into the oxygen-rich gas collection chamber relative to the nitrogen in the space airflow around the gas-regulating membrane module 30.
  • the inner side surface of each of the air-conditioning membranes 31 faces the oxygen-rich gas collecting chamber to make the outer space of the air-conditioning membrane module 30 when the pressure of the oxygen-rich gas collecting chamber is lower than the pressure of the surrounding space of the air-conditioning membrane module 30.
  • the oxygen in the air passes through at least one of the gas regulating membranes 31 into the oxygen-rich gas collecting chamber with respect to the nitrogen gas therein.
  • 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 port 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 may be disposed in the drawer cylinder 20 On the wall of the cylinder.
  • 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 body 20 includes a main plate portion 25 and a cover portion 26, and a partial portion of the main plate portion 25 is formed with a recess portion, and the cover portion 26 is detachably covered on the recess portion to form a receiving portion. 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 can be in the form of a flat plate, and the air conditioning membrane module 30 can 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 can be opened to form Air flow channel.
  • 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. 7 and 8. 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, wherein the plurality of second wide ribs are spaced apart, and a plurality of the second wide ribs are disposed between the two adjacent Second narrow rib.
  • 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.
  • Deviating from at least one of the plurality of second wide ribs a portion of the surface of the two surfaces 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 is recessed inward to form a fourth groove; wherein the fourth groove and the first groove
  • the intersecting portions communicate to form a cross groove.
  • 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 d'extraction d'air (10) et un dispositif de réfrigération et de congélation. L'ensemble pompe d'extraction d'air (10) comprend une plaque inférieure (100) de montage, un boîtier d'étanchéité (200) et une pompe (300) d'extraction d'air. Une partie butée (110) s'étendant vers le haut est disposée sur la partie arrière de la surface supérieure de la plaque inférieure (100) de montage, et la surface avant de la partie butée (110) est en retrait vers l'arrière pour former une partie évidée (112) de fixation. Le boîtier d'étanchéité (200) est pourvu d'un conduit de raccordement d'entrée d'air (510) et d'un conduit de raccordement de sortie d'air (520) communiquant avec des espaces intérieurs et des espaces extérieurs correspondants, et le conduit de raccordement d'entrée d'air (510), le tuyau de raccordement de sortie d'air (520) et le boîtier d'étanchéité (200) sont formés d'un seul tenant. Une partie saillante (212) de fixation faisant saillie vers l'arrière est formée sur la partie arrière du boîtier d'étanchéité (200). Le boîtier d'étanchéité (200) est situé sur le côté supérieur de la plaque inférieure (100) de montage, la partie saillante (212) de fixation est serrée dans la partie évidée (112) de fixation, et la partie avant du boîtier d'étanchéité (200) est verrouillée sur la plaque inférieure (100) de montage. La pompe (300) d'extraction d'air est disposée dans le boîtier d'étanchéité (200) de telle manière que l'axe de la pompe (300) d'extraction d'air s'étend dans la direction horizontale. Une entrée d'air de la pompe (300) d'extraction d'air est reliée au conduit de raccordement d'entrée d'air (510) au moyen d'un flexible (310), et une sortie d'air de la pompe (300) d'extraction d'air est reliée au conduit de raccordement de sortie d'air (520) au moyen d'un flexible (320). L'ensemble pompe d'extraction d'air (10) est peu bruyant en fonctionnement, est très pratique à démonter et à monter dans le dispositif de réfrigération et de congélation, et occupe un petit espace en hauteur.
PCT/CN2017/114211 2016-12-02 2017-12-01 Ensemble pompe d'extraction d'air et dispositif de réfrigération et de congélation Ceased WO2018099460A1 (fr)

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CN201611097456.XA CN106593820B (zh) 2016-12-02 2016-12-02 冷藏冷冻装置

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CN114061224A (zh) * 2020-08-10 2022-02-18 海信（山东）冰箱有限公司 一种冰箱
CN116086106A (zh) * 2022-12-27 2023-05-09 青岛海尔电冰箱有限公司 气调装置及冷藏冷冻装置
CN117663609A (zh) * 2022-08-31 2024-03-08 青岛海尔电冰箱有限公司 冷藏冷冻装置

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CN106593820B (zh) * 2016-12-02 2019-05-03 青岛海尔股份有限公司 冷藏冷冻装置
CN108131277B (zh) * 2017-12-11 2021-03-23 海尔智家股份有限公司 冰箱真空组件及冰箱
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
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
CN108302008B (zh) * 2017-12-11 2021-03-23 海尔智家股份有限公司 冰箱真空组件及冰箱
CN117663601B (zh) * 2022-08-31 2026-01-09 青岛海尔电冰箱有限公司 冷藏冷冻装置

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CN114061224A (zh) * 2020-08-10 2022-02-18 海信（山东）冰箱有限公司 一种冰箱
CN117663609A (zh) * 2022-08-31 2024-03-08 青岛海尔电冰箱有限公司 冷藏冷冻装置
CN116086106A (zh) * 2022-12-27 2023-05-09 青岛海尔电冰箱有限公司 气调装置及冷藏冷冻装置

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