WO2021208430A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2021208430A1
WO2021208430A1 PCT/CN2020/129907 CN2020129907W WO2021208430A1 WO 2021208430 A1 WO2021208430 A1 WO 2021208430A1 CN 2020129907 W CN2020129907 W CN 2020129907W WO 2021208430 A1 WO2021208430 A1 WO 2021208430A1
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WO
WIPO (PCT)
Prior art keywords
low
vacuum pump
floating
storage unit
column
Prior art date
Application number
PCT/CN2020/129907
Other languages
English (en)
French (fr)
Inventor
杨春
Original Assignee
海信（山东）冰箱有限公司
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Filing date
Publication date
Application filed by 海信（山东）冰箱有限公司 filed Critical 海信（山东）冰箱有限公司
Publication of WO2021208430A1 publication Critical patent/WO2021208430A1/zh

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Classifications

    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/08—Check valves with guided rigid valve members shaped as rings
    • F16K15/12—Springs for ring valves
    • 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
    • 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
    • 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
    • F25D17/042—Air treating means within refrigerated spaces
    • 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
    • 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
    • F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment

Definitions

  • the present disclosure belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
  • refrigerators As an indispensable electrical product in home life, refrigerators occupy an important share of the market. With the improvement of consumers’ requirements for the quality of fresh foods, the requirements for refrigerators are also getting higher and higher.
  • the refrigerators are required to have higher configurations and more powerful functions. The long storage period ensures the freshness of the ingredients and prevents the loss of nutrients.
  • a vacuum chamber In order to better store food, a vacuum chamber has been developed in the refrigerator, and the vacuum chamber is evacuated through a vacuum device.
  • the main function of vacuuming is to deoxygenate the vacuum chamber to prevent food from spoiling.
  • the vacuum chamber When the vacuum chamber is in a negative pressure state, the gas is sucked into the air inlet through the exhaust port of the vacuum pump, and the gas is discharged into the vacuum chamber, causing air leakage in the vacuum chamber.
  • a low-temperature storage compartment the low-temperature storage compartment is enclosed by an inner liner;
  • a low-pressure storage unit located in the low-temperature storage room, can be evacuated to form a pressure lower than the atmospheric pressure outside the refrigerator to facilitate the preservation of food;
  • a vacuum pump which is connected to the low-pressure storage unit, and is used to draw air out of the low-pressure storage unit;
  • Anti-leakage unit which includes:
  • a column having a first through hole communicating with the vacuum pump
  • An end cover which seals the end of the vertical column away from the vacuum pump, and is provided with a vent connecting the low-pressure storage unit and the first through hole;
  • a spring installed in the first through hole, and one end close to the vacuum pump is fixed to the upright post;
  • a floating piece one end is connected with the spring, and the other end is matched with the end cover to open or close the vent;
  • the floating member When the low-pressure storage unit is pumped, the floating member is subjected to air pressure to overcome the elastic force of the spring to move toward the vacuum pump, the floating member is separated from the end cover, and the air vent is opened; The air of the low-pressure storage unit sequentially passes through the vent, the first through hole, and the vacuum pump;
  • the floating member When the low-pressure storage unit stops pumping air, the floating member is moved away from the vacuum pump by the action of the spring and the air pressure, the floating member is sealed and matched with the end cover, and the air vent is closed.
  • Figure 1 is a schematic diagram of the overall structure of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 2 is a schematic diagram of a part of the structure of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 3 is a schematic structural diagram of the relative positions of the drain pipe and the inner container of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 4 is a structural schematic diagram of the relative positions of the vacuum pump assembly, the low-pressure storage unit, and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 5 is another angle of the relative position structure of the vacuum pump assembly, the low-pressure storage unit, and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 6 is a relative position structure of a vacuum pump assembly, a low-pressure storage unit, a drain pipe, and a muffler of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 7 is a schematic diagram of the relative positional relationship between the air leakage prevention unit and the low-pressure storage unit of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 8 is a schematic diagram of the overall structure of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure.
  • FIG. 9 is a schematic diagram of an exploded structure of an air leakage prevention unit of a refrigerator provided by some embodiments of the present disclosure.
  • FIG. 10 is an exploded structural schematic diagram of another perspective of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure.
  • FIG. 11 is another structural schematic diagram of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure.
  • Figure 12 is a cross-sectional view of Figure 11 along the A-A direction;
  • FIG. 13 is a schematic structural diagram of a floating member of an air leakage prevention unit of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 14 is a cross-sectional view of an end cover of an air leakage prevention unit of a refrigerator provided by some embodiments of the present disclosure
  • 15 is a schematic diagram of the relative positional relationship between the second fixing member and the inner container of the refrigerator provided by some embodiments of the present disclosure
  • 16 is a schematic diagram of the structure of the vacuum pump assembly and the inner container of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 17 is another structural schematic diagram of the vacuum pump assembly and the inner container of the refrigerator provided by some embodiments of the present disclosure.
  • FIG. 18 is a schematic diagram of an exploded structure of a vacuum pump assembly, a first fixing part, and a second fixing part of a refrigerator provided by some embodiments of the present disclosure
  • FIG. 19 is a schematic diagram of an exploded structure of a pump housing of a refrigerator provided by some embodiments of the present disclosure.
  • 20 is a schematic diagram of the cooperation structure of the vacuum pump assembly and the first fixing member of the refrigerator provided by some embodiments of the present disclosure
  • 21 is a schematic diagram of the assembly structure of the vacuum pump assembly and the inner container of the refrigerator provided by some embodiments of the present disclosure
  • Fig. 22 is an enlarged view of area A in Fig. 21.
  • Fig. 1 is a schematic diagram of the overall structure of a refrigerator provided by some embodiments of the present disclosure
  • Fig. 2 is a schematic diagram of a partial structure of a refrigerator provided by some embodiments of the present disclosure.
  • a refrigerator 1 includes a heat-insulating cabinet 2
  • the cabinet 2 includes an outer shell 2 a, an inner container 2 b, and a thermal insulation layer (not shown) between the two.
  • the box 2 defines a plurality of insulated low-temperature storage compartments to store food and other items.
  • these low-temperature storage compartments are respectively the refrigerating compartment 10 at the upper part and the freezing compartment at the bottom.
  • the low-temperature storage compartment can be closed by its corresponding door.
  • the refrigerating chamber 10 is provided with a refrigerating side-by-side door
  • the freezing chamber is provided with a freezing side-by-side door.
  • present disclosure should not be limited to the specific distribution form of the storage compartments of the refrigerator 1, and the present disclosure may also be applied to other forms of refrigerators 1, such as refrigerators 1 with drawer-type doors.
  • the refrigerator 1 has an evaporative refrigeration system forming a closed loop.
  • the refrigeration system includes at least a compressor (not shown), a condenser (not shown), a throttling device (not shown), and an evaporator (not shown). Since such a refrigeration system is a well-known technology in the prior art, further description thereof is omitted. Of course, the refrigerator 1 can also use other forms of refrigeration systems (such as absorption refrigeration systems, thermoelectric refrigeration systems).
  • the refrigerator 1 is provided with a low-pressure storage unit 12 that can be maintained in a low-pressure state, and a vacuum pump assembly for drawing gas from the low-pressure storage unit 12.
  • the vacuum pump assembly may include a vacuum pump 3 and a pipeline connected between the vacuum pump 3 and the low-pressure storage unit 12.
  • the low-pressure storage unit 12 is provided in the refrigerating compartment 10. It should be understood that, in other embodiments, the low-pressure storage unit 12 may also be arranged in another low-temperature storage room, for example, a temperature changing room whose temperature range can be switched between a refrigerating temperature zone and a freezing temperature zone.
  • the low-pressure storage unit 12 is located at the bottom of the refrigerating compartment 10 and is supported on the bottom wall 52a of the refrigerating compartment 10.
  • An adjacent position of the low-pressure storage unit 12 may be provided with a fresh-keeping container 11 suitable for storing vegetables and other foods; the low-pressure storage unit 12 and the fresh-keeping container 11 are arranged side by side at the bottom of the refrigerator compartment 10.
  • the low-pressure storage unit 12 may be constructed independently of the box body 2 and then assembled in the box body 2. Referring to FIG. 2, in this embodiment, the low-pressure storage unit 12 has a substantially flat rectangular parallelepiped shape, and the sum of the width of the low-pressure storage unit 12 and the width of the fresh-keeping container 11 is slightly smaller than the width of the refrigerating compartment 10, thereby effectively distributing the refrigerating compartment The bottom space of 10 allows the fresh-keeping container 11 and the low-pressure storage unit 12 to be inserted into the refrigerating compartment 10 or pulled out of the refrigerating compartment 10.
  • the low-pressure storage unit 12 includes a casing 4 fixed in the refrigerating compartment 10 and a door 5 connected to the casing 4 and capable of being pushed into or out of the refrigerating compartment 10.
  • the housing 4 has a box-shaped structure, which defines a flat low-pressure storage room with a food access port.
  • the access port is located at the front end of the housing 4 facing the user.
  • the outer side of the box wall of the housing 4 is provided with grid-like reinforcing ribs to increase the strength of the box wall of the housing 4 and avoid the deformation of the housing 4 due to the pressure difference between the inside and the outside after being evacuated.
  • the door body 5 can be provided with a ring-shaped sealing element, so that when the door body 5 is in the closed position, an airtight joint is formed between the housing 4 and the door body 5 to prevent gas from entering from the joint between the housing 4 and the door body 5 Low-pressure storage room.
  • the sealing element may also be provided at the front end of the housing 4.
  • the low-pressure storage chamber When the low-pressure storage chamber is closed by the door body 5 and the vacuum pump assembly is activated, the gas in the low-pressure storage chamber is evacuated, and the low-pressure storage chamber is in a low-pressure state.
  • the pressure in the low-pressure storage chamber is between a standard atmospheric pressure and an absolute vacuum. Since the air pressure in the low-pressure storage chamber is lower than the standard atmospheric pressure, those skilled in the art also commonly call it a "vacuum chamber".
  • the door body 5 is a drawer type door, and the door body 5 can be pushed toward the housing 4 to close the access port of the low-pressure storage room, or pulled out to open the low-pressure storage room.
  • the rear side of the door body 5 is connected to a tray-shaped storage container for storing articles. The user obtains the articles in the low-pressure storage unit 12 or stores the articles in the low-pressure storage unit 12 by pushing or pulling the storage container into or out of the low-pressure storage room.
  • the door body 5 and the storage container together constitute a drawer unit that can be pushed into and pulled out of the housing 4.
  • FIG. 3 is a schematic structural diagram of the relative positions of the drain pipe and the inner liner of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 4 is a schematic structural diagram of the relative positions of the vacuum pump assembly, the low-pressure storage unit and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • 5 is another angle of the relative position structure of the vacuum pump assembly, the low-pressure storage unit and the drain pipe of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 6 is the vacuum pump assembly, the low-pressure storage unit, and the drain of the refrigerator provided by some embodiments of the present disclosure The relative position structure of the pipe and the muffler.
  • the refrigerator 1 has a drain pipe 13 for draining condensed water inside the refrigerator 1.
  • One end of the vacuum pump assembly is connected with the low-pressure storage unit 12, and the other end is connected with the drain pipe 13 of the refrigerator 1.
  • the vacuum pump assembly operates to draw out the air in the low-pressure storage unit 12 and deliver it to the drain pipe 13, and finally discharge the air from the refrigerator 1 through the drain pipe 13.
  • the food in other areas in the refrigerating compartment 10 will odor each other, which will affect the freshness preservation effect of the food.
  • the vacuum pump assembly includes a vacuum pump 3, a first pipe 14 connecting the vacuum pump 3 and the low-pressure storage unit 12, and a second pipe 15 connecting the vacuum pump 3 and the drain pipe 13, wherein the second pipe 15 is provided with a silencer 24.
  • the vacuum pump assembly is arranged on the inner container 2b of the refrigerating compartment 10 and is close to the bottom of the low-pressure storage unit 12.
  • the upper part of the rear wall of the inner container 2b of the refrigerating compartment 10 is recessed backwards to form an accommodating cavity 22 for accommodating the vacuum pump assembly;
  • the vacuum pump assembly is located in the accommodating cavity 22, and a separation space 23 is formed between the cavity wall of the accommodating cavity 22, so as to reduce the direct contact between the vacuum pump assembly and the inner container 2b and reduce the transmission of vibration. , Effective noise reduction.
  • the vacuum pump assembly includes a vacuum pump 3, a pump casing 6 and an elastic body 7 sleeved between the vacuum pump 3 and the pump casing 6.
  • the vacuum pump 3 is provided with an exhaust pipe 16 connected with the first pipe 14 and an exhaust pipe 17 connected with the second pipe 15.
  • the suction pipe 16 and the exhaust pipe 17 are arranged side by side, and are located at the same end of the vacuum pump 3.
  • the air in the low-pressure storage unit 12 sequentially passes through the first pipe 14, the suction pipe 16, the vacuum pump 3, the exhaust pipe 17, the second pipe 15, and the silencer 24 arranged on the second pipe 15 finally It is transported to the drainage pipe 13 and finally discharged from the box 2 through the drainage pipe 13.
  • an elastic body is sleeved on the outside of the vacuum pump.
  • the elastic body can absorb vibration on the vacuum pump to reduce the noise generated by the vacuum pump; in addition, a muffler 24 is provided on the second pipeline to further absorb noise. To optimize the overall performance of the refrigerator and improve the user experience.
  • FIG. 7 is a schematic diagram of the relative positional relationship between the air leakage prevention unit and the low-pressure storage unit of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 8 is a schematic diagram of the overall structure of the air leakage prevention unit of the refrigerator provided by some embodiments of the disclosure
  • FIG. 9 is The exploded structure diagram of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 10 is another perspective view of the exploded structure diagram of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 11 is some embodiments of the present disclosure Another structural diagram of the air leakage prevention unit of the refrigerator provided
  • FIG. 12 is a cross-sectional view along the AA direction of FIG. 11;
  • FIG. 12 is a cross-sectional view along the AA direction of FIG. 11; FIG.
  • FIG. 13 is a structural diagram of the floating member of the air leakage prevention unit of the refrigerator provided by some embodiments of the present disclosure. This is a cross-sectional view of an end cover of an air leakage prevention unit of a refrigerator provided by some embodiments of the present disclosure.
  • the refrigerator 1 has an air leakage prevention unit 40 arranged between the low-pressure storage unit 12 and the vacuum pump 3.
  • the air leakage prevention unit 40 can avoid the formation of negative pressure in the low-pressure storage unit 12 after vacuuming. Air leak.
  • the existing structure after vacuuming, when the low-pressure storage unit 12 is in a negative pressure state, the gas is sucked into the suction pipe 16 through the exhaust pipe 17 of the vacuum pump 3, and the gas is discharged into the low-pressure storage unit 12 through the suction pipe 16. , Causing air leakage in the low-pressure storage unit 12, reducing the efficiency of vacuuming.
  • the air leakage prevention unit 40 of this embodiment can effectively avoid air leakage caused by suction, thereby ensuring the vacuum degree of the low-pressure storage unit 12 and ensuring the freshness preservation effect of food.
  • the air leakage prevention unit 40 has a column 41 with a first through hole 41a communicating with the vacuum pump 15; an end of the column 41 away from the vacuum pump 3 is provided with an end cover 42 that seals the end of the column 41; an air vent is formed on the end cover 42
  • the port 42a and the vent port 42a communicate with the low-pressure storage chamber 14 of the low-pressure storage unit 15 and the first through hole 41a.
  • a first matching plate 41b is provided on the periphery of the column 41 near one end of the end cover 42, and a second matching plate 42b is provided on the periphery of the end cover 42 which is matched with the first matching plate 41b; wherein a screw is provided on the first matching plate 41b
  • the second matching plate 42b is provided with screw holes that match the screw holes on the first matching plate 41b, and the end cover 42 is fixedly connected to the upright 42 by screws.
  • a spring 46 is provided between the end cover 42 and the bottom of the column 41, that is, the spring is installed in the first through hole 41a; a floating member 47 is provided between the spring 46 and the end cover 42.
  • the floating member 47 cooperates with the end cap 42 to open or close the air vent 42a.
  • the floating member 47 overcomes the spring 46.
  • the pressure moves to the side close to the vacuum pump 3; the floating member 47 is separated from the end cover 42, the vent 42a is opened, and the air in the low-pressure storage unit 15 enters the first through hole 41a through the vent 42a, and then enters the vacuum pump 3, and It is discharged by the vacuum pump 3.
  • the end of the column 41 near the vacuum pump 3 is provided with a mounting block 49 fixed to one end of the spring 46; the other end of the spring 46 is fixed with a floating piece 47; 47 is T-shaped and includes a floating plate 47a for abutting against the end cap 42 and a floating column 47b connected with the spring 46.
  • the radial dimension of the floating plate 47a is larger than the radial dimension of the floating column 47b.
  • the floating member 47 and the end of the spring 46 are fixed by a connecting member 50;
  • the connecting member 50 includes a connecting column 50a fixed at one end to the spring 46 and a connecting column 50a arranged at the other end of the connecting column 50a and perpendicular to the connecting column 50a.
  • Plate 50b; the connecting plate 50b is provided with an assembly hole 50c for installing the floating column 47b.
  • the upper part of the floating column 47b protrudes along its radial direction to form a clamping column 47c, and an annular receiving groove 48 for accommodating the connecting plate 50b is formed between the clamping column 47c and the floating plate 47a.
  • a convex ring 43 is provided on the side of the end cover 42 close to the column 41 and surrounding the vent 42a.
  • the end of the convex ring 43 close to the column 41 has a protruding sharp portion 44.
  • the sharp portion 44 includes a first inclined surface 44a and a second inclined surface 44b.
  • the first inclined surface 44a and the second inclined surface 44b intersect to form a rib 45 surrounding the outer end 41b of the column 41;
  • the outer wall surface of the ring 43 is provided on the side of the end cover 42 close to the column 41 and surrounding the vent 42a.
  • the floating plate 47a of the floating member 47 is matched with the sharp portion 44 on the end cover 42; the arrangement of the above protruding ribs 45 reduces the contact area between the end cover 42 and the floating plate 47a of the floating member 47, and effectively ensures that the convex ring 43 is in contact with the floating plate 47a.
  • the floating plate 47a of the piece 47 is in contact with the tightness of the fit.
  • the floating piece 47 is set as a piece of elastic material to deform when the floating piece 47 is subjected to an external force and the rib 45, so as to ensure that the floating piece 47 is in sealed contact with the rib 45; at the same time, it is ensured that the floating piece 47 and the rib 45 are recovered after being separated. Undisturbed.
  • the floating member 47 is of rubber material.
  • the floating member 47 overcomes the pressure of the spring 46 to move closer to the vacuum pump 3 under the action of the internal and external pressure difference.
  • the air passes through the vent 42a on the end cover 42 and enters the first through hole 41a through the gap between the floating plate 47a and the rib 45, and finally enters the first pipeline 14, and then passes through the exhaust pipe 16, the vacuum pump 3,
  • the exhaust pipe 17, the second pipe 15, and the drain pipe 13 are discharged.
  • the low-pressure storage unit 12 forms a negative pressure, and the external pressure is greater than the internal pressure of the low-pressure storage unit 12.
  • the floating piece 47 moves inside the low-pressure storage unit 12, and the floating plate on the floating piece 47 47a and the rib 45 are sealed and matched, and the vent 42a is closed, which effectively prevents gas from entering the low-pressure storage unit 12 through the exhaust pipe 17 and the suction pipe 16 of the vacuum pump 3, causing the low-pressure storage unit 12 to leak.
  • the anti-leakage unit 40 provided above opens the vent 42a during pumping under the action of the low-pressure storage unit 12, and closes the vent 42a after the end of the pumping; the above-mentioned anti-leak unit 40 can effectively avoid the suction caused by The air leakage ensures the vacuum degree of the low-pressure storage unit 12 and the preservation effect of food.
  • FIG. 15 is a schematic diagram of the relative positional relationship between the second fixing member and the inner liner of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 16 is a schematic diagram of the vacuum pump assembly and the inner liner of the refrigerator provided by some embodiments of the present disclosure
  • Another structural schematic diagram of the vacuum pump assembly and the inner container of the refrigerator provided by some embodiments is disclosed
  • FIG. 18 is an exploded structural schematic diagram of the vacuum pump assembly, the first fixing member and the second fixing member of the refrigerator provided by some embodiments of the disclosure
  • FIG. 19 FIG. 20 is a schematic diagram of the structure of the vacuum pump assembly and the first fixing member of the refrigerator provided by some embodiments of the present disclosure
  • FIG. 21 is a schematic diagram of the refrigerator provided by some embodiments of the present disclosure. Schematic diagram of the assembly structure of the vacuum pump assembly and the inner tank
  • Figure 22 is an enlarged view of area A in Figure 21.
  • the pump housing 6 includes a first housing 6a and a second housing 6b.
  • the first housing 6a and the second housing 6b are clamped to be mounted on the elastic body. 7Outside.
  • the above pump casing 6 is arranged in a split type, which is convenient for disassembly and assembly.
  • the pump housing 6 is provided with a connecting plate 50b61 fixed to the inner liner 2b; the end of the connecting plate 50b61 away from the central axis of the pump housing 6 is provided with an installation notch 61a.
  • the area of the mounting notch 61a close to the edge of the connecting plate 50b61 is in a contraction shape.
  • the projection shape of the installation notch 61a on the connecting plate 50b61 is a superior arc shape.
  • the connecting plate 50b61 is provided on the outer circumference of the first housing 6a; wherein, the two edges where the first housing 6a and the second housing 6b are connected are provided with connecting plates 50b61.
  • the refrigerator includes a first fixing member 8 and a second fixing member 9 that cooperate with each other; wherein the first fixing member 8 is fixedly connected to the connecting plate 50b61 of the pump housing 6, and the first fixing member 8 is installed on the inner wall of the inner container 2b;
  • the two fixing members 9 are installed on the outer side of the inner tank 2b, and after passing through the mounting hole 21, they cooperate with the first fixing member 8 to fix the vacuum pump assembly on the inner tank 2b.
  • the first fixing member 8 includes a fixing column, a fixing plate 81a disposed at both ends of the fixing column, a fixing through hole 81c penetrating the fixing column and the fixing plate 81a; the fixing plates 81a disposed at both ends of the fixing column form a ring shape ⁇ installation slot 82.
  • the fixing post of the first fixing member 8 is installed in the installation notch 61 a on the pump casing 6, and the connecting plate 50 b61 on the pump casing 6 is installed in the installation groove 82 of the first fixing member 8.
  • the size of the fixing plate 81a is larger than the size of the mounting hole 21 on the inner liner 2b.
  • the end surface of the fixing plate 81a away from the fixing column is provided with a protrusion 83 for reducing the contact area between the fixing plate 81a and the inner liner 2b and improving the contact stability.
  • the second fixing member 9 includes a stop portion 91a, and a plurality of separately arranged fixing hooks 91b are provided on one side of the stop portion 91a.
  • the fixing hooks 91b are separated from each other by an isolation space 92 to provide sufficient elastic deformation space for the fixing hooks 91b.
  • the arrangement path of the plurality of fixing hooks 91b is consistent with the shape of the fixing through hole 81c on the first fixing member 8, so that the fixing hook 91b passes through the fixing through hole 81c.
  • the fixing through hole 81c is circular
  • the stop portion 91a is provided with two hooks arranged opposite to each other.
  • the size of the stopping portion 91a is larger than the size of the mounting hole 21 on the inner liner 2b, so as to stop the stopping portion 91a from the outer side of the inner liner 2b.
  • the first fixing member 8 is located inside the inner liner 2b, and the fixing post is installed in the installation notch 61a of the connecting plate 50b61 on the pump housing 6;
  • the hook 91b sequentially passes through the mounting hole 21 on the inner liner 2b, the fixing through hole 81c on the first fixing member 8 located inside the inner liner 2b, and then engages with the fixing plate 81a on the first fixing member 8 away from the inner liner 2b
  • the second fixing member 9 and the first fixing member 8 are fixed, that is, the vacuum pump assembly and the inner container 2b are fixed.
  • an elastic gasket 18 is installed between the stop portion 91a of the first fixing member 8 and the inner liner 2b to effectively absorb vibration and reduce the transmission of vibration.
  • the second fixing member 9 may be an elastic member, or a rigid material inside and an elastic material outside, so as to effectively reduce vibration and noise while maintaining the rigidity of the connection. It should be understood that when at least the outside of the fixing column or fixing plate 81a of the second fixing member 9 is provided with an elastic material, vibration reduction and noise reduction can be achieved.
  • the above is achieved through the engagement of the elastic fixing hook 91b of the second fixing member 9 with the first fixing member 8, and the cooperation of the fixing post of the first fixing member 8 with the installation notch 61a on the vacuum pump assembly.
  • the above fixing structure simplifies the installation of the vacuum pump assembly; on the other hand, the above arrangement makes the vacuum pump assembly indirectly contact the inner container, which can effectively avoid the transmission of noise generated when the vacuum pump is working, and optimize the overall refrigerator Performance and improve user experience.

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Abstract

本公开提供了一种冰箱，其包括低温储藏间室、位于低温储藏间室内的低压储藏单元、真空泵及防漏气单元，防漏气单元包括具有与所述真空泵相连通的第一通孔的立柱、密封所述立柱远离所述真空泵的端部且其上设有连通所述低压储藏单元与所述第一通孔的通气口的端盖、安装于所述第一通孔内且靠近所述真空泵的一端与所述立柱固定的弹簧、一端与所述弹簧相连接而另一端与所述端盖相配合以打开或关闭所述通气口的浮动件；浮动柱受到弹簧和气压作用能够沿第一通孔作往复运动，以打开或关闭通气口。

Description

冰箱
相关申请的交叉引用
本公开要求在2020年4月17日提交中国专利局、申请号为202010306882.X、公开名称为“冰箱”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。
技术领域
本公开属于冰箱的技术领域，尤其涉及一种冰箱。
背景技术
冰箱作为居家生活中不可或缺的电器产品，占据着市场的重要份额。随着消费者对生鲜食品品质要求的提高，随之对冰箱的要求也越来越高，要求冰箱具有更高的配置和更强大的功能，尤其是希望所储藏的生鲜食品能够具有更长的储藏期，从而保证食材的新鲜度，防止营养成分的流失。
为了将食物更好的存储，现已发展出在冰箱内设置真空室，通过抽真空装置对真空室进行抽真空处理。抽真空的主要作用是对真空室内进行除氧，以防止食品变质。当真空室处于负压状态时，气体通过真空泵的排气口倒吸入进气口，将气体排入到真空室内，导致真空室漏气。
发明内容
本公开的一些实施例提供了一种冰箱，包括：
低温储藏间室，所述低温储藏间室由内胆围成；
低压储藏单元，位于所述低温储藏间室内，其内可被抽空气形成低于所述冰箱外部大气压的气压以利于食物的保鲜；
真空泵，与所述低压储藏单元相连通，用于将所述低压储藏单元内的空气抽出；
防漏气单元，其包括：
立柱，其具有与所述真空泵相连通的第一通孔；
端盖，密封所述立柱远离所述真空泵的端部，其上设有连通所述低压储藏单元与所述第一通孔的通气口；
弹簧，安装于所述第一通孔内，且靠近所述真空泵的一端与所述立柱固定；
浮动件，一端与所述弹簧相连接，另一端与所述端盖相配合，以打开或关闭所述通气口；
所述低压储藏单元抽气时，所述浮动件受到气压作用克服所述弹簧的弹性力向靠近所述真空泵的方向移动，所述浮动件与所述端盖相分离，所述通气口打开；所述低压储藏单元的空气依次通过所述通气口、第一通孔、真空泵；
所述低压储藏单元停止抽气时，所述浮动件受到所述弹簧和气压的作用向远离所述真空泵的方向移动，所述浮动件与所述端盖密封配合，所述通气口关闭。
附图说明
图1为本公开一些实施例提供的冰箱的整体结构示意图；
图2为本公开一些实施例提供的冰箱的部分结构示意图；
图3为本公开一些实施例提供的冰箱的排水管与内胆的相对位置结构示意图；
图4为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的相对位置结构示意图；
图5为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的另一角度的相对位置结构；
图6为本公开一些实施例提供的冰箱的真空泵组件、低压储藏单元、排水管及消音器的相对位置结构；
图7为本公开一些实施例提供的冰箱的防漏气单元与低压储藏单元的相对位置关系示意图；
图8为本公开一些实施例提供的冰箱的防漏气单元的整体结构示意图；
图9为本公开一些实施例提供的冰箱的防漏气单元的分解结构示意图；
图10为本公开一些实施例提供的冰箱的防漏气单元另一视角的分解结构示意图；
图11为本公开一些实施例提供的冰箱的防漏气单元的另一结构示意图；
图12为图11沿A-A方向的剖视图；
图13为本公开一些实施例提供的冰箱的防漏气单元的浮动件的结构示意图；
图14为本公开一些实施例提供的冰箱防漏气单元的端盖的剖视图；
图15为本公开一些实施例提供的冰箱的第二固定件与内胆的相对位置关系示意图；
图16为本公开一些实施例提供的冰箱的真空泵组件与内胆的结构示意图；
图17为本公开一些实施例提供的冰箱的真空泵组件与内胆的另一结构示意图；
图18为本公开一些实施例提供的冰箱的真空泵组件、第一固定件及第二固定件的分解结构示意图；
图19为本公开一些实施例提供的冰箱的泵壳分解结构示意图；
图20为本公开一些实施例提供的冰箱的真空泵组件与第一固定件配合结构示意图；
图21为本公开一些实施例提供的冰箱的真空泵组件与内胆装配结构示意图；
图22为图21中A区域的放大图。
具体实施方式
下面结合具体实施例对本公开作进一步说明，以使本领域的技术人员可以更好的理解本公开并能予以实施，但本公开所要求保护的范围并不局限于具体实施方式中所描述的范围。需要说明的是，在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。
需要说明的是，本公开实施例中所有方向性指示(诸如上、下、左、右、前、后......)仅用于解释在某一特定姿态(如附图所示)下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应的随之改变。
另外，在本公开中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。
另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的 结合不存在，也不在本公开要求的保护范围之内。
图1为本公开一些实施例提供的冰箱的整体结构示意图；图2为本公开一些实施例提供的冰箱的部分结构示意图。参照图1-图2，一种冰箱1，冰箱1包括隔热的箱体2，箱体2包括外壳2a、内胆2b以及位于二者之间的热绝缘层(未图示)。箱体2限定多个隔热的低温储藏间室以储藏食物等物品。在本实施例中，这些低温储藏间室分别是位于上部的冷藏室10、位于底部的冷冻室。低温储藏间室可由各自对应的箱门关闭。本公开中冷藏室10设置冷藏对开门，冷冻室设置冷冻对开门。
应当理解，本公开不应当局限于冰箱1的储藏隔间的具体分布形式，本公开也可以应用其他形式的冰箱1，例如具有抽屉式门的冰箱1等。
冰箱1具有形成闭环的蒸发式制冷系统。制冷系统至少包括压缩机(未图示)、冷凝器(未图示)、节流装置(未图示)以及蒸发器(未图示)。鉴于这样的制冷系统在现有技术中为公知技术，因此省略对其进一步的描述。当然，冰箱1也可以使用其它形式的制冷系统(如吸收式制冷系统、热电制冷系统)也是可以的。
冰箱1设有具有可保持在低压状态的低压储藏单元12以及用以将气体从低压储藏单元12内抽离的真空泵组件。真空泵组件可以包括真空泵3以及连接在真空泵3和低压储藏单元12之间的管路。
在本公开一些实施例中，低压储藏单元12设置在冷藏室10内。应当理解，在其他的实施例中，低压储藏单元12也可以设置在其他低温储藏间室内，例如温度范围可在冷藏温区和冷冻温区之间切换的变温室。
低压储藏单元12位于冷藏室10的底部，被支撑在冷藏室10的底壁52a上。低压储藏单元12的相邻位置可设有一个湿度较高、适于保存蔬菜等食品的保鲜容器11；低压储藏单元12与保鲜容器11并列设置于冷藏室10的底部。
低压储藏单元12可独立于箱体2地构造后组装在箱体2内。请参照图2，在本实施例中，低压储藏单元12具有大致为扁平的长方体状，低压储藏单元12的宽度与保鲜容器11的宽度之和稍小于冷藏室10的宽度，从而有效分配冷藏室10的底部空间，使得保鲜容器11和低压储藏单元12均可插入冷藏室10内或从冷藏室10内拉出。
低压储藏单元12包括固定在冷藏室10内的壳体4以及连接于壳体4并可推入或退出冷藏室10的门体5。
参照图2，壳体4具有箱形结构，它限定具有食物取放口的扁平低压储藏室。本实施例中，取放口位于面向使用者的壳体4的前端。壳体4的箱壁外侧设有网格状的加强筋，以增加壳体4的箱壁强度，避免壳体4于抽真空后因内外气压差所引起变形。
门体5可设置环形的密封元件，以使门体5处于关闭位置时壳体4与门体5之间形成气密性接合，防止气体从壳体4和门体5之间的接合处进入低压储藏室。密封元件也可以设置在壳体4的前端。
当低压储藏室被门体5关闭且真空泵组件启动时，位于低压储藏室内的气体被抽离，低压储藏室处于低压状态。在本公开的一种实施方式中，在抽空程序结束时，低压储藏室内的压强介于一个标准大气压和绝对真空之间。由于低压储藏室内的气压低于标准大气压，本领域技术人员也俗称其“真空室”。
门体5为抽屉式门，门体5可被推向壳体4以关闭低压储藏室的取放口，或者拉出以打开低压储藏室。门体5的后侧连接托盘状的置物容器用以放置物品。用户通过将置物容 器推入或拉出低压储藏室来获得位于低压储藏单元12内的物品或将物品存放在低压储藏单元12内。门体5和置物容器一起构成了可推入和拉出壳体4内的抽屉单元。
图3为本公开一些实施例提供的冰箱的排水管与内胆的相对位置结构示意图；图4为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的相对位置结构示意图；图5为本公开一些实施例提供的冰箱的真空泵组件与低压储藏单元及排水管的另一角度的相对位置结构；图6为本公开一些实施例提供的冰箱的真空泵组件、低压储藏单元、排水管及消音器的相对位置结构。
如图3-图6所示，冰箱1具有用于排出冰箱1内部冷凝水的排水管13。真空泵组件一端与低压储藏单元12相连通，另一端与冰箱1的排水管13相连通。真空泵组件运作，将低压储藏单元12内的空气抽出并输送至排水管13，最终由排水管13排出冰箱1。以避免将由低压储藏单元12内抽出的气体直接排入冰箱1内部而使冷藏室10内其它区域的食物互相串味，影响食品的保鲜效果。
真空泵组件包括真空泵3、连接真空泵3与低压储藏单元12的第一管路14、连接真空泵3与排水管13的第二管路15，其中第二管路15上设有消音器24。
真空泵组件设于冷藏室10的内胆2b上，且靠近低压储藏单元12的底部。冷藏室10的内胆2b的后壁上部分向后凹陷形成容置腔22，以容纳真空泵组件；内胆2b靠近容置腔22的区域设有安装孔21，用于固定真空泵组件。在本公开一些实施例中，真空泵组件位于容置腔22内，且与容置腔22的腔壁之间形成有分离空间23，以减少真空泵组件与内胆2b的直接接触，减少振动的传递，有效降噪。
真空泵组件包括真空泵3、泵壳6及套设于真空泵3与泵壳6之间的弹性体7。真空泵3上设有与第一管路14相连通的抽气管16及与第二管路15相连通的排气管17。抽气管16与排气管17并列设置，且位于真空泵3的同一端。真空泵工作时，低压储藏单元12内的空气依次经过第一管路14、抽气管16、真空泵3、排气管17、第二管路15及设于第二管路15上的消音器24最终输送至排水管13，最终由排水管13排出箱体2。本实施例中，真空泵外侧套设有弹性体，弹性体能够吸收真空泵上的振动，以减少真空泵工作时所产生的噪音；另外,在第二管路上设有消音器24，以进一步吸收噪音，以优化冰箱的整体性能，提高用户体验。
图7为本公开一些实施例提供的冰箱的防漏气单元与低压储藏单元的相对位置关系示意图；图8为本公开一些实施例提供的冰箱的防漏气单元的整体结构示意图；图9为本公开一些实施例提供的冰箱的防漏气单元的分解结构示意图；图10为本公开一些实施例提供的冰箱的防漏气单元另一视角的分解结构示意图；图11为本公开一些实施例提供的冰箱的防漏气单元的另一结构示意图；图12为图11沿A-A方向的剖视图；图13为本公开一些实施例提供的冰箱的防漏气单元的浮动件的结构示意图；图14为本公开一些实施例提供的冰箱防漏气单元的端盖的剖视图。
如图7-图14所示，冰箱1具有设置于低压储藏单元12与真空泵3之间的防漏气单元40，防漏气单元40能够避免抽真空后低压储藏单元12内形成负压而导致的漏气。在现有结构中，抽真空后，低压储藏单元12处于负压状态时，气体通过真空泵3的排气管17倒吸入抽气管16，并通过抽气管16将气体排入到低压储藏单元12内，导致低压储藏单元12漏气，降低抽真空的效率。本实施例的防漏气单元40能够有效避免倒吸所引起的漏气现象发生，从而确保低压储藏单元12的真空度，确保食物的保鲜效果。
防漏气单元40具有立柱41，立柱41具有与真空泵15相连通的第一通孔41a；立柱41远离真空泵3的一端设有密封立柱41端部的端盖42；端盖42上形成有通气口42a，通气口42a连通低压储藏单元15的低压储藏室14与第一通孔41a。立柱41靠近端盖42一端的外围设有第一配合板41b，端盖42的外围设有与第一配合板41b相配合的第二配合板42b；其中，第一配合板41b上设有螺钉孔，第二配合板42b上设有与第一配合板41b上的螺钉孔相配合的螺钉孔，通过螺钉将端盖42与立柱42固定连接。
端盖42与立柱41底部之间设有弹簧46，即弹簧安装于第一通孔41a内；弹簧46与端盖42之间设有浮动件47。浮动件47与端盖42配合，以打开或关闭通气口42a。当低压储藏单元15抽气时，真空泵3工作，于防漏气单元40靠近真空泵3一侧形成负压，第一通孔41a内压力与真空泵3内的压力保持一致，低压储藏单元15内压力大于第一通孔41a内的压力，浮动件47两侧形成压力差，该压力差大于弹簧46的弹性力，且作用于浮动件47上，在以上压力差作用下，浮动件47克服弹簧46的压力向靠近真空泵3一侧移动；浮动件47与端盖42相分离，通气口42a打开，低压储藏单元15内空气通过通气口42a进入第一通孔41a内，再进入真空泵3内，并由真空泵3排出。
在本公开的一种实施方式中，第一通孔41a内，立柱41靠近真空泵3的端部设有与弹簧46的一端固定的安装块49；弹簧46另一端固定有浮动件47；浮动件47呈T型，其包括用于与端盖42相抵接的浮板47a，及与弹簧46相连接的浮动柱47b，浮板47a的径向尺寸大于浮动柱47b的径向尺寸。本实施例中，浮动件47与弹簧46的端部通过连接件50固定；连接件50包括一端与弹簧46固定的连接柱50a及设于连接柱50a另一端并与连接柱50a相垂直的连接板50b；连接板50b上设有用于安装浮动柱47b的装配孔50c。
浮动柱47b上部分区域沿其径向突出形成卡柱47c，卡柱47c与浮板47a之间形成容纳连接板50b的环状的容纳槽48。
端盖42靠近立柱41的一侧环绕通气口42a设有凸环43，凸环43靠近立柱41的端部具有凸出的尖锐部44，尖锐部44包括第一斜面44a和第二斜面44b，第一斜面44a和第二斜面44b相交形成环绕立柱41的外端部41b的突棱45；第一斜面44a连接突棱45与凸环43的内壁面，第二斜面44b连接突棱45与凸环43的外壁面。
浮动件47的浮板47a与端盖42上的尖锐部44相配合；以上突棱45的设置减小了端盖42与浮动件47的浮板47a的接触面积，有效确保凸环43与浮动件47的浮板47a接触配合的密封性。真空泵3抽气时，低压储藏单元12内的空气依次通过通气口42a、第一通孔41a、真空泵3。
浮动件47设置为弹性材料件，以在浮动件47受外力作用与突棱45作用时发生变形，从而确保浮动件47与突棱45密封接触；同时确保浮动件47与突棱45分离后恢复原状。本实施例中，浮动件47橡胶材料。
抽气装置抽气时，浮动件47在内外压力差的作用下克服弹簧46的压力向靠近真空泵3的方向移动，浮板47a与突棱45分离，通气口42a打开，低压储藏单元12内的空气通过端盖42上的通气口42a并通过浮板47a与突棱45之间的间隙进入第一通孔41a内，最终通过进入第一管路14，尔后依次经过抽气管16、真空泵3、排气管17、第二管路15、排水管13排出。
抽气结束后，低压储藏单元12形成负压，外部压力大于低压储藏单元12的内部压力，在弹簧46及压力作用下，浮动件47向低压储藏单元12内部移动，浮动件47上的浮板47a 与突棱45密封配合，通气口42a关闭，有效避免气体通过真空泵3的排气管17、抽气管16而进入低压储藏单元12，导致低压储藏单元12漏气。
以上设置的防漏气单元40在低压储藏单元12的作用下于抽气时打开通气口42a，并于抽气结束后关闭通气口42a；以上防漏气单元40能够有效避免倒吸所引起的漏气现象，确保低压储藏单元12的真空度，确保食物的保鲜效果。
图15为本公开一些实施例提供的冰箱的第二固定件与内胆的相对位置关系示意图；图16为本公开一些实施例提供的冰箱的真空泵组件与内胆的结构示意图；图17为本公开一些实施例提供的冰箱的真空泵组件与内胆的另一结构示意图；图18为本公开一些实施例提供的冰箱的真空泵组件、第一固定件及第二固定件的分解结构示意图；图19为本公开一些实施例提供的冰箱的泵壳分解结构示意图；图20为本公开一些实施例提供的冰箱的真空泵组件与第一固定件配合结构示意图；图21为本公开一些实施例提供的冰箱的真空泵组件与内胆装配结构示意图；图22为图21中A区域的放大图。
参见图15-图22，在本公开一些实施例中，泵壳6包括第一壳体6a和第二壳体6b，第一壳体6a与第二壳体6b相卡接以安装于弹性体7外侧。以上泵壳6分体式的设置，方便拆装。
泵壳6上设有与内胆2b固定的连接板50b61；连接板50b61远离泵壳6中心轴的端部设有安装缺口61a。沿远离泵壳6中心轴的方向，安装缺口61a靠近连接板50b61边沿的区域呈收缩状，以上设置能够确保安装缺口61a具有足够的容纳空间，并能够有效固定其内所安装部件，避免脱落。在一些实施例中，安装缺口61a于连接板50b61上的投影形状呈优弧状。本实施例中，连接板50b61设于第一壳体6a的外周上；其中，第一壳体6a与第二壳体6b相对接的两个边沿处均设有连接板50b61。
冰箱包括相互配合的第一固定件8和第二固定件9；其中，第一固定件8与泵壳6的连接板50b61固定连接，且第一固定件8安装于内胆2b的内壁；第二固定件9安装于内胆2b的外侧，并穿过安装孔21后与第一固定件8配合，以将真空泵组件固定于内胆2b上。
第一固定件8包括固定柱、设置于固定柱两端部的固定板81a、贯穿固定柱及固定板81a的固定通孔81c；设置于固定柱两端部的固定板81a之间形成环状的安装槽82。第一固定件8的固定柱安装于泵壳6上的安装缺口61a内，泵壳6上的连接板50b61安装于第一固定件8的安装槽82内。其中，固定板81a的尺寸大于内胆2b上安装孔21的尺寸。本实施例中，固定板81a远离固定柱的端面上设有凸起83，用于减小固定板81a与内胆2b的接触面积，提高接触稳定性。
第二固定件9包括止挡部91a，止挡部91a一侧设有多个分离排布的固定卡勾91b。固定卡勾91b相互之间由隔离空间92分隔开，以为固定卡勾91b提供足够的弹性变形空间。多个固定卡勾91b的排布路径与第一固定件8上固定通孔81c的形状相一致，以使固定卡勾91b穿过固定通孔81c。在一些实施例中，固定通孔81c为圆形，止挡部91a上设置有两个相背设置的卡勾。其中，止挡部91a的尺寸大于内胆2b上安装孔21的尺寸，以将止挡部91a止挡于内胆2b的外侧。
安装时，第一固定件8位于内胆2b内侧，固定柱安装于泵壳6上连接板50b61的安装缺口61a内；第二固定件9的止挡部91a位于内胆2b的外侧，固定卡勾91b依次穿过内胆2b上的安装孔21、位于内胆2b内侧的第一固定件8上的固定通孔81c，然后与第一固 定件8上远离内胆2b的固定板81a相卡接，以实现第二固定件9与第一固定件8的固定，即完成真空泵组件与内胆2b的固定。
在本公开一些实施例中，第一固定件8的止挡部91a与内胆2b之间安装有弹性垫片18，以有效吸收振动，减少振动的传递。第二固定件9可设为弹性件，或内部为刚性材质，外部为弹性材料，以保持连接刚度的同时，有效减振降噪。应当理解的是，第二固定件9的固定柱或固定板81a至少外部设置为弹性材料时，能够实现减振降噪。
以上通过第二固定件9的弹性的固定卡勾91b与第一固定件8的卡接，及第一固定件8的固定柱与真空泵组件上安装缺口61a的配合实现了对真空泵组件与内胆的固定，以上固定结构的设置一方面简化了真空泵组件的安装；另一方面，通过以上设置使真空泵组件与内胆非直接接触，能够有效避免真空泵工作时所产生噪音的传递，优化冰箱的整体性能，提高用户体验。
以上所述，仅是本公开的较佳实施例而已，并非是对本公开作其它形式的限制，任何熟悉本专业的技术人员可能利用上述揭示的技术内容加以变更或改型为等同变化的等效实施例应用于其它领域，但是凡是未脱离本公开技术方案内容，依据本公开的技术实质对以上实施例所作的任何简单修改、等同变化与改型，仍属于本公开技术方案的保护范围。

Claims (10)

  1. 冰箱，其特征在于：包括：
    低温储藏间室，所述低温储藏间室由内胆围成；
    低压储藏单元，位于所述低温储藏间室内，其内可被抽空气形成低于所述冰箱外部大气压的气压以利于食物的保鲜；
    真空泵，与所述低压储藏单元相连通，用于将所述低压储藏单元内的空气抽出；
    防漏气单元，其包括：
    立柱，其具有与所述真空泵相连通的第一通孔；
    端盖，密封所述立柱远离所述真空泵的端部，其上设有连通所述低压储藏单元与所述第一通孔的通气口；
    弹簧，安装于所述第一通孔内，且靠近所述真空泵的一端与所述立柱固定；
    浮动件，一端与所述弹簧相连接，另一端与所述端盖相配合，以打开或关闭所述通气口；
    所述低压储藏单元抽气时，所述浮动件受到气压作用克服所述弹簧的弹性力向靠近所述真空泵的方向移动，所述浮动件与所述端盖分离，所述通气口打开；所述低压储藏单元的空气依次通过所述通气口、第一通孔、真空泵；
    所述低压储藏单元停止抽气时，所述浮动件受到所述弹簧和气压的作用向远离所述真空泵的方向移动，所述浮动件与所述端盖密封配合，所述通气口关闭。
  2. 根据权利要求1所述的冰箱，其特征在于：所述浮动件包括与所述弹簧固定的浮动柱及设于所述浮动件一端的浮板，所述浮板与所述端盖相配合，以打开或关闭所述通气口。
  3. 根据权利要求2所述的冰箱，其特征在于：所述浮动件与所述弹簧的端部通过连接件固定。
  4. 根据权利要求3所述的冰箱，其特征在于：所述连接件包括一端与所述弹簧固定的连接柱及设于所述连接柱另一端的连接板；所述连接板上设有用于安装所述浮动柱的装配孔。
  5. 根据权利要求4所述的冰箱，其特征在于：所述浮动柱上部分区域沿其径向突出形成卡柱，所述卡柱与所述浮板之间形成容纳所述连接板的容纳槽。
  6. 根据权利要求2-5其中任一项所述的冰箱，其特征在于：所述端盖靠近所述立柱的一侧环绕所述通气口设有与所述浮板相配合的凸环。
  7. 根据权利要求6所述的冰箱，其特征在于：所述凸环具有尖锐部，所述尖锐部包括第一斜面和第二斜面，所述第一斜面和第二斜面相交形成环绕所述凸环并用于与所述浮板相配合的突棱；所述第一斜面连接所述突棱与所述凸环的内壁面，所述第二斜面连接所述突棱与所述凸环的外壁面。
  8. 根据权利要求1-5其中任一项所述的冰箱，其特征在于：所述第一通孔内，所述立柱靠近所述真空泵的端部设有安装块，所述安装块与所述弹簧的一端固定。
  9. 根据权利要求1-5其中任一项所述的冰箱，其特征在于：所述立柱靠近所述端盖一端的外围设有第一配合板，所述端盖的外围设有与所述第一配合板相配合的第二配合板；其中，所述第一配合板与所述第二配合板上设有位置相对应的螺钉孔，通过螺钉将所述端盖与所述立柱固定连接。
  10. 根据权利要求1-5其中任一项所述的冰箱，其特征在于：所述浮动件为橡胶材料。
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