CN114076439B - Refrigerator and method for mounting air extraction joint of refrigerator - Google Patents

Refrigerator and method for mounting air extraction joint of refrigerator Download PDF

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Publication number
CN114076439B
CN114076439B CN202010796125.5A CN202010796125A CN114076439B CN 114076439 B CN114076439 B CN 114076439B CN 202010796125 A CN202010796125 A CN 202010796125A CN 114076439 B CN114076439 B CN 114076439B
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CN
China
Prior art keywords
air extraction
joint
refrigerator
convex ring
base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010796125.5A
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Chinese (zh)
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CN114076439A (en
Inventor
杨春
王海燕
韩丽丽
潘毅广
鲍雨锋
刘铁伟
张建
张善房
孙彬
职东宁
李涛
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.)
Hisense Refrigerator Co Ltd
Original Assignee
Hisense Refrigerator Co Ltd
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Application filed by Hisense Refrigerator Co Ltd filed Critical Hisense Refrigerator Co Ltd
Priority to CN202010796125.5A priority Critical patent/CN114076439B/en
Publication of CN114076439A publication Critical patent/CN114076439A/en
Application granted granted Critical
Publication of CN114076439B publication Critical patent/CN114076439B/en
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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
    • 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
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers
    • F25D23/028—Details
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

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

Abstract

The invention provides a refrigerator, which comprises a refrigerator body, a refrigerator door rotatably arranged on the refrigerator body, a low-pressure storage unit arranged on the refrigerator door, an air extractor and an air extraction connector which can be arranged on the refrigerator door in a turnover manner; the air extraction joint comprises a base, a cover plate and a connecting pipeline; the base is provided with an opposite joint and a first convex ring surrounding the opposite joint; the cover plate seals the base, a concave ring matched with the first convex ring is arranged on the base, and a sealing ring is arranged between the concave ring and the end part of the first convex ring; one end of the connecting pipeline is communicated with the butt joint opening, and the other end of the connecting pipeline penetrates out of the base and is communicated with the air exhaust pipeline; according to the invention, the invertible air extraction joint is arranged to be connected with the low-pressure storage unit for vacuumizing, and the cover plate, the base and the air extraction pipeline of the air extraction joint are matched, so that the volume of the air extraction joint is effectively limited, the air extraction joint has good tightness and compact and exquisite structure, and the air extraction joint is convenient to be connected with the low-pressure storage unit for vacuumizing, so that the food preservation time is prolonged.

Description

Refrigerator and method for mounting air extraction joint of refrigerator
Technical Field
The invention belongs to the technical field of household refrigerators, and particularly relates to a refrigerator and an air extraction connector mounting method thereof.
Background
At present, the consumer has improved quality requirements for fresh foods, and new requirements are also put on refrigerator configuration to meet the consumer demands, so that the fresh foods stored in the refrigerator are expected to have longer storage period, the freshness of the foods is ensured, and the loss of nutrient components is prevented.
In view of this, the present invention has been proposed.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a refrigerator, comprising:
a housing defining an insulated low temperature storage compartment;
the box door is rotatably arranged on the box body so as to open or close the low-temperature storage compartment;
the low-pressure storage unit is arranged on one side of the refrigerator door close to the low-temperature storage room, and can be evacuated to form air pressure lower than the atmospheric pressure outside the refrigerator so as to be beneficial to food preservation;
the air extracting device comprises a vacuum pump and an air extracting pipeline connected with the vacuum pump;
the air extraction connector is arranged on the box door in a turnover way so as to be connected with or separated from the low-pressure storage unit; the air extraction joint comprises:
a base defining a receiving portion having an opening at one end; the bottom of the accommodating part is provided with an opposite joint and a first convex ring surrounding the opposite joint;
one end of the connecting pipeline is communicated with the interior of the first convex ring, and the other end of the connecting pipeline penetrates out of the base and is communicated with the exhaust pipeline;
the cover plate is arranged in the accommodating part of the base and is used for sealing the opening end of the base; the cover plate is provided with a concave ring matched with the first convex ring, and a sealing ring is arranged between the concave ring and the end part of the first convex ring;
the air extraction joint is connected with the low-pressure storage unit, the vacuum pump works, and the air in the low-pressure storage unit sequentially passes through the butt joint port, the connecting pipeline, the air extraction pipeline and the vacuum pump.
Preferably, a third convex ring is arranged on the cover plate, and the third convex ring is arranged on the inner ring of the concave ring; and the end part of the third convex ring far away from the cover plate and the bottom of the accommodating part jointly define a ventilation gap;
wherein, one of a magnet block and a ferromagnetic piece is arranged in the third convex ring; the other one of the magnet block and the ferromagnetic piece is arranged on the box door; when the air extraction joint is turned over to be close to the box door, the ferromagnetic piece and the magnet block interact to adsorb the air extraction joint on the box door.
Preferably, a second convex ring is arranged in the first convex ring on the base, the butt joint is arranged in the surrounding area of the second convex ring, and the second convex ring is provided with a connecting port for communicating the inner side and the outer side of the second convex ring;
the second convex ring is sleeved in a third convex ring on the cover plate and corresponds to the magnet block or the ferromagnetic piece in the third convex ring; the second collar and the third collar together define an airflow channel.
Preferably, the base comprises a bottom plate and a ring side plate surrounding the bottom plate; the bottom plate is provided with a plurality of screw columns, and the screw columns are distributed around the first convex ring;
the cover plate is provided with screw holes corresponding to the screw columns, and the base is fixedly connected with the cover plate through screws.
Preferably, a first mounting table for mounting the cover plate is formed on the end part, away from the bottom plate, of the ring side plate.
Preferably, the ring side plate comprises a second side plate positioned at one end of the bottom plate close to the box door; the second side plate is provided with a pipe passing hole for the connecting pipeline to pass through the accommodating part, and a connecting clamping hole is arranged at the position adjacent to the pipe passing hole;
and the cover plate is provided with a clamping hook matched with the connecting clamping hole on the base.
Preferably, a second mounting table is arranged on the cover plate, and a decorative cover for shielding the screw hole is arranged on the second mounting table; the decorative cover and the end part of the annular side plate of the base, which is far away from the bottom plate, are co-end.
Preferably, the connecting pipeline passes through the base and is at least partially positioned outside the base for being connected with the extraction pipeline.
Preferably, the box door is provided with a mounting seat, and the air extraction joint is arranged on the mounting seat in a turnover manner; and the mounting seat is provided with an air extraction key.
The method for installing the air extraction joint of the refrigerator comprises the following steps:
firstly, assembling the air extraction joint;
secondly, connecting the air extraction joint to the mounting seat;
then, connecting a connecting pipeline of the air extraction joint with the air extraction pipeline;
and finally, the mounting seat is mounted on the box door.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a refrigerator body, a refrigerator door rotatably arranged on the refrigerator body, a low-pressure storage unit arranged on the refrigerator door, an air extractor and an air extraction connector which can be arranged on the refrigerator door in a turnover manner; the air extraction joint comprises a base, a cover plate and a connecting pipeline; the base is provided with an opposite joint and a first convex ring surrounding the opposite joint; the cover plate seals the base, a concave ring matched with the first convex ring is arranged on the base, and a sealing ring is arranged between the concave ring and the end part of the first convex ring; one end of the connecting pipeline is communicated with the butt joint opening, and the other end of the connecting pipeline penetrates out of the base and is communicated with the air exhaust pipeline; according to the invention, the invertible air extraction joint is arranged to be connected with the low-pressure storage unit for vacuumizing, and the cover plate, the base and the air extraction pipeline of the air extraction joint are matched, so that the volume of the air extraction joint is effectively limited, the air extraction joint has good tightness and compact and exquisite structure, and the air extraction joint is convenient to be connected with the low-pressure storage unit for vacuumizing, so that the food preservation time is prolonged.
Drawings
Fig. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic structural view showing a connection state of an air suction connector and a low pressure storage unit of the refrigerator according to the present invention;
FIG. 3 is a schematic view showing a structure of a refrigerator according to the present invention in a state in which an air suction connector is separated from a low pressure storage unit;
FIG. 4 is a schematic diagram showing the relative relationship among the door, the air extraction connector and the low-pressure storage unit of the refrigerator according to the present invention;
fig. 5 is a schematic view showing the structure of a low pressure storage unit of the refrigerator of the present invention;
fig. 6 is a schematic structural view of a one-way ventilation unit of a low pressure storage unit of the refrigerator of the present invention;
FIG. 7 is a schematic diagram showing the relative relationship of the door, the air extraction connector and the low pressure storage unit of the refrigerator according to the present invention;
FIG. 8 is a schematic view of a partially enlarged structure of an air extraction joint, a mounting seat and a door of the refrigerator of the present invention;
FIG. 9 is a schematic diagram of the relative positions of the air extraction joint and the mounting base of the refrigerator according to the present invention;
fig. 10 is a schematic structural view of a mounting seat of the refrigerator of the present invention;
FIG. 11 is a schematic view showing an exploded structure of an air extraction joint of the refrigerator of the present invention;
FIG. 12 is a schematic view showing an exploded structure of an air extraction joint of the refrigerator according to another aspect of the present invention;
fig. 13 is a sectional view showing an assembling structure of an air suction connector and a mounting base of a refrigerator according to the present invention.
In the above figures: a refrigerator 10; a case 11; a low pressure storage unit 9; a refrigerating chamber 12; a box door 1; a housing part 1a; a door frame 16; a front panel 17; an inner shell plate 18; a through hole 19; a vacuum pump 70; a suction line 71; a pressure relief unit 72; a unidirectional ventilation unit 2; a column 20; an inner end 20a; an outer end 20b; an air suction hole 21; an air outlet 22; a floating column 23; a first baffle 23a; a second baffle 23b; a receiving groove 24; a suction passage 25; a first shroud 26; a second shroud 27; a docking slot 28; an air extraction joint 3; an interface 30; a base 4; a ring side plate 40; a bottom plate 41; a first side plate 40a; a second side plate 40b; a first mounting table 40c; a mating ring 42; a conduit aperture 43; a connection clip hole 44; a first collar 45; a second collar 46; a connection port 46a; a connecting line 47; a docking collar plate 48; a sealing sleeve 49; a screw column 41a; a cover plate 5; a third collar 50; screw holes 51; a hook 52; a second mount 53; a female ring 54; a seal ring 55; a mounting member 6; a mounting cavity 60; a cavity port 60a; a bump 60b; a routing channel 61; a pipe joint 62; a mounting base 8; a first connection plate 81; a convex plate 82; a fitting hole 83; an air extraction button 84; a switch plate 85; switch connecting wires 86; an opening 81a; a baffle 87; a second connection plate 88; a mounting hole 89; a magnet block 13; a ferromagnetic member 14; a decorative cover 15.
Detailed Description
The present invention will be further described with reference to specific examples so that those skilled in the art may better understand the present invention and practice it, but the scope of the present invention is not limited to the scope described in the specific embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
It should be noted that the description of "first", "second", etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1-13, a refrigerator 10 includes a thermally insulated cabinet 11; the case 11 defines a plurality of low-temperature storage compartments for storing articles such as food. In the present embodiment, the low-temperature storage compartments are a refrigerating compartment 12 and a freezing compartment, respectively; with the fresh food compartment 12 at the upper portion and the freezer compartment at the bottom portion. Each low-temperature storage compartment is provided with a respective door; in the present invention, a refrigerator 12 is provided with a door 1 for a side-by-side type refrigerator which can be rotated to open a low-temperature storage compartment. In the embodiment, the box door 1 is connected with the box body 11 through a door hinge plate; the door hinge plate is provided with a connecting sleeve, and the door 1 is provided with a rotating sleeve sleeved on the connecting sleeve; one of the connecting sleeve and the rotating sleeve is provided with a through hole 19; the refrigerator 10 has an evaporative refrigeration system forming a closed loop. In view of the fact that such refrigeration systems are well known in the art, they are not described in detail herein.
As shown in fig. 2 to 4, the door 1 is provided with a low pressure storage unit 9 which can be kept in a low pressure state, an air extraction device, and an air extraction connector 3 for connecting the low pressure storage unit 9 and the air extraction device. Specifically, the low pressure storage unit 9 is detachably provided to the door 1. The air extractor is arranged at the top of the box door 1 where the low-pressure storage unit 9 is arranged, and is used for extracting the air in the low-pressure storage unit 9 so as to form a low-pressure state in the low-pressure storage unit 9. The air extraction joint 3 is arranged on the box door 1 in a turnover way and is positioned at one side of the box door 1 close to the low-pressure storage unit 9; the air extraction joint 3 is communicated with an air extraction device; the suction connection 3 is connected to or disconnected from the low pressure storage unit 9 by turning the suction connection 3 over.
When the low-pressure storage unit 9 is connected with the air extraction joint 3 and the air extraction device is started, the air in the low-pressure storage unit 9 is extracted, and the low-pressure storage unit 9 is in a low-pressure state. According to a preferred embodiment of the invention, at the end of the evacuation procedure, the pressure in the low-pressure reservoir unit 9 is between a normal atmospheric pressure and absolute vacuum. Since the air pressure in the low-pressure storage unit 9 is lower than the normal atmospheric pressure, those skilled in the art are also commonly referred to as "vacuum storage" thereof, and such a state that the air pressure is lower than the normal atmospheric pressure is referred to as "vacuum state".
As shown in fig. 4, the top of the door 1 is provided with a receiving portion 1a. The air extracting device comprises a vacuum pump 70 arranged in the accommodating part 1a, an air extracting pipeline 71 and an air exhausting pipeline which are connected with the vacuum pump 70; the suction line 71 has one end communicating with the vacuum pump 70 and the other end communicating with the suction connector 3 for communicating with the low pressure storage unit 9 when the suction connector 3 is connected with the low pressure storage unit 9. Specifically, the air extraction pipe 71 extends from top to bottom along the box door 1 to the air extraction joint 3. As a preferred implementation manner, the air extraction pipeline 71 is provided with a pressure relief unit 72 communicated with the air extraction pipeline 71, so that external air enters the air extraction pipeline 71 of the air extraction device after the vacuum extraction is finished, and thus the internal and external air pressures of the air extraction pipeline 71 of the air extraction device are balanced, the internal and external pressure difference of the air extraction joint 3 is reduced, and a user can conveniently flip the air extraction joint 3 to separate the air extraction joint from the low-pressure storage unit 9. In this embodiment, the pressure relief unit 72 is mounted in the housing portion 1a.
As shown in fig. 5, the low-pressure storage unit 9 is provided with a one-way ventilation unit 2; specifically, the one-way ventilation unit 2 includes a column 20 formed on the low-pressure storage unit 9 and a suction hole 21 penetrating the column 20. Wherein the upright 20 has an inner end 20a located inside the low pressure reservoir unit 9 and an outer end 20b located outside the low pressure reservoir unit 9; wherein, the air suction hole 21 forms an air outlet 22 at the outer end 20b of the upright post 20; the floating column 23 is arranged in the air suction hole 21, the radial dimension of the floating column 23 is smaller than that of the air suction hole 21, the floating column 23 and the upright column 20 jointly define an air suction channel 25, and the air suction channel 25 is always communicated with the inner cavity of the low-pressure storage unit 9; one end of the floating column 23 is provided with a second baffle 23b for cooperating with the outer end 20b to open or close the air outlet 22; a first shroud 26 located at the inner ring and a second shroud 27 located at the outer ring are provided around the outer end 20b of the upright 20, the first shroud 26 and the second shroud 27 cooperating to form a docking slot 28.
Wherein, a first baffle 23a is arranged at one end of the floating column 23 near the inner end 20a, and a containing groove 24 for containing the upright post 20 is formed between the first baffle 23a and the second baffle 23b; the first baffle 23a is adapted to cooperate with the inner end 20a of the upright 20; the side wall of the inner end 20a of the upright post 20 is provided with a vent to communicate the cavity of the low pressure storage unit 9 with the air extraction channel 25.
As shown in fig. 3, the air extraction joint 3 is provided with an interface 30, and the interface 30 is communicated with an air extraction pipeline 71. When the air extraction joint 3 is turned over and connected with the low-pressure storage unit 9, the air extraction joint 3 is arranged in the butt joint groove 28 and is in sealing butt joint with the butt joint groove 28; the air suction hole 21 on the low-pressure storage unit 9 is butted with the butt joint 30 on the air suction joint 3 so as to enable the inner cavity of the low-pressure storage unit 9 to be communicated with the air suction pipeline 71 during vacuumizing.
When the low-pressure storage unit 9 is pumped, negative pressure is generated on one side of the floating column 23 close to the pumping joint 3, the floating column 23 moves towards the direction close to the pumping joint 3 under the action of air pressure, the second baffle plate 23b is separated from the outer end part 20b, and the air outlet 22 is opened; the air of the low-pressure storage unit 9 sequentially passes through the air suction channel 25, the air outlet 22, the air suction joint 3, the air suction pipeline 71, the vacuum pump 70 and the air exhaust pipeline; when the low-pressure storage unit 9 stops pumping, because the pressure intensity of the floating column 23 on the side close to the inner cavity of the low-pressure storage unit 9 is smaller than the pressure intensity of the floating column on the side close to the pumping joint 3, the floating column 23 moves away from the pumping joint 3 under the action of air pressure, the second baffle plate 23b is in sealing fit with the outer end part 20b, and the air outlet 22 is closed. At this time, the pressure relief unit 72 can be opened, and gas enters the air extraction pipeline 71, so that the internal and external air pressures of the air extraction pipeline 71 are balanced, and a user can conveniently turn over the air extraction joint 3 to separate the air extraction joint from the low-pressure storage unit 9.
In this embodiment, the exhaust duct may be provided to communicate with the external atmosphere of the refrigerator 10 to exhaust the air drawn out of the low pressure storage unit 9 to the outside of the refrigerator 10.
In particular, see fig. 2-4, as shown in fig. 7-8; the door 1 includes a door frame 16, a front panel 17 and an inner shell 18 provided on the door frame 16; wherein the inner shell plate 18 is located on the side of the front panel 17 adjacent to the low pressure compartment. The door frame 16 is provided with a mounting piece 6 at one side close to the box body 11; the mounting member 6 is provided with a mounting cavity 60, and the ferromagnetic member 14, i.e. a member made of ferromagnetic material, is arranged above the mounting cavity 60 of the mounting member 6; in this embodiment, the ferromagnetic member 14 is a sheet metal member. Wherein the mounting cavity 60 is formed with a cavity opening 60a at one side of the inner shell plate 18, and a projection 60b is arranged on the circumference of the cavity wall of the mounting cavity 60 around the cavity opening 60a; the direction of the installation cavity 60 away from the rotating shaft of the box door 1 is provided with a wiring channel 61 and a pipeline joint 62, wherein one end of the pipeline joint 62 is communicated with an air extraction pipeline 71 of the air extraction device, and the other end is communicated with the air extraction joint 3. The mount 6 is provided between the front panel 17 and the inner shell 18 of the door 1, and the inner shell 18 is formed with an opening corresponding to the cavity opening 60a of the mount chamber 60.
The mounting piece 6 is provided with a mounting seat 8 connected with the air extraction joint 3; as shown in fig. 9 to 10, the mount 8 includes a first connection plate 81, a boss 82 is formed on a side of the first connection plate 81 adjacent to the inner shell plate 18, and a fitting hole 83 is formed on the boss 82 to be fitted with the boss 60b in the mounting chamber 60, so as to fix the mount 8 to the door 1, and the mouth 60a of the mounting chamber 60 is shielded by the first connection plate 81. The first connecting plate 81 is provided with an air extraction key 84, and one side of the air extraction key 84, which is close to the inner shell plate 18, is provided with a switch plate 85; wherein the switch connecting wire 86 connected with the air extraction button 84 passes through the wiring channel 61 on the mounting member 6 and passes through the through hole 19 on the rotating sleeve or the connecting sleeve to be connected with the electric control box in the box 11. The first connecting plate 81 is provided with an opening 81a below the air extraction key 84, a baffle 87 is formed at the lower edge of the opening 81a, and the baffle 87 extends upwards and in a direction away from the inner shell plate 18; the edges of the openings 81a on two opposite sides of the baffle 87 are respectively provided with a second connecting plate 88, and one side of the second connecting plate 88, which is close to the openings 81a, is provided with a mounting hole 89.
As shown in fig. 11-13, the air extraction connector 3 comprises a base 4 and a cover plate 5 matched with the base 4. The base 4 includes a bottom plate 41 and a ring side plate 40 surrounding the bottom plate 41, and the bottom plate 41 and the ring side plate 40 cooperate to define a receiving portion. The ring side plate 40 includes a first side plate 40a and a second side plate 40b located at one end of the air extraction joint 3 near the inner shell plate 18, where the first side plate 40a and the second side plate 40b are end-to-end disposed around the edge of the bottom plate 41. Wherein, the end of the ring side plate 40 far from the bottom plate 41 is provided with a first mounting table 40c for mounting the cover plate 5 so that the cover plate 5 is mounted in the accommodating part; the two ends of the first side plate 40a, which are connected with the two opposite ends of the second side plate 40b, are provided with matching rings 42, and the matching rings 42 are matched with mounting holes 89 on the mounting seat 8 and can rotate around the central axis of the mounting holes 89, so that the air extraction joint 3 can be overturned. Wherein, the hole 81a on the mounting seat 8 is a reserved space of the air extraction joint 3, so that interference between the air extraction joint 3 and the mounting seat 8 is avoided in the process of overturning the air extraction joint; in addition, when the air extraction connector 3 is turned over in a direction approaching the low-pressure storage unit 9, the baffle 87 can limit the limit position of the air extraction connector 3, so that the air extraction connector 3 can be turned over in a region above the low-pressure storage unit 9, and the operation of a user is convenient. In addition, the second side plate 40b is formed with a pipe hole 43, and a connection clamping hole 44 is provided adjacent to the pipe hole 43. The side of the bottom plate 41 away from the second side plate 40b is provided with a first convex ring 45, a second convex ring 46 is arranged in the first convex ring 45, the second convex ring 46 and the bottom plate 41 are matched to form a mounting groove, and the second convex ring 46 is provided with a connecting port 46a for communicating the inner side and the outer side of the second convex ring 46. The periphery of the first convex ring 45 is provided with a plurality of screw columns 41a, and the first convex ring 45 is provided with connecting pipelines 47 communicated with the two inner sides of the first convex ring, wherein the connecting pipelines 47 penetrate out of the pipeline holes 43 and are used for being communicated with an air extraction pipeline 71 of the air extraction device through pipeline joints 62 on the mounting piece 6. In this embodiment, the connecting pipe 47 is at least partially located outside the base 4, i.e. a certain length is reserved after the connecting pipe 47 extends out of the base 4, so that the connecting pipe 47 extends out of the base 4 and is separated by one more, so that a space is reserved for manual operation of an installer, and the installer can conveniently connect the connecting pipe 47 with the pipe joint 62.
Wherein the butt joint 30 of the air extraction joint 3 is arranged on the bottom plate 41 and is surrounded by the second convex ring 46; the interface 30 communicates with the suction line 71 of the suction device via the connection port 46a and the connection line 47. A butt joint ring plate 48 is arranged on one side of the bottom plate 41 away from the first convex ring 45, the butt joint ring plate 48 is arranged around the butt joint port 30, and a sealing sleeve 49 is sleeved on the butt joint ring plate 48; when the air extraction joint 3 is connected with the low-pressure storage unit 9, the docking ring plate 48 is installed in the docking groove 28 of the low-pressure storage unit 9, and is in sealing docking with the docking groove 28 through the sealing sleeve 49.
The cover plate 5 of the air extraction joint 3 is provided with a third convex ring 50, the third convex ring 50 is installed in the installation groove, the end part of the third convex ring 50 and the bottom plate 41 jointly define an air vent gap, the third convex ring 50 and the second convex ring 46 jointly define an air flow channel, namely the third convex ring 50 is installed between the first convex ring 45 and the second convex ring 46, and the connectivity of the connecting pipeline 47 and the butt joint 30 is not blocked; a concave ring 54 is arranged around the third convex ring 50, and the concave ring 54 is matched with the first convex ring 45 on the base 4 and is used for accommodating a sealing ring 55; the concave ring 54, the first convex ring 45 and the sealing ring 55 define a sealing space communicated with the butt joint opening 30, so that the boundary of the sealing space is effectively reduced, the sealing effect is improved, and the effectiveness of vacuumizing is ensured. The periphery of the third convex ring 50 is provided with a plurality of screw holes 51 matched with the screw columns 41a on the bottom plate 41, and the third convex ring 50 is internally provided with a magnet block 13. In addition, the edge of the cover plate 5 far from the third convex ring 50 is provided with a hook 52 matched with the connecting clamping hole 44 on the base 4.
In addition, a decorative cover 15 is provided on the side of the cover plate 5 away from the base 4 to block screw holes 51 provided thereon. In this embodiment, the second mounting table 53 is disposed on the cover 5, the decorative cover 15 is mounted on the second mounting table 53, and after the cover 5 is mounted on the first mounting table 40c, the decorative cover 15 is mounted on the second mounting table 53, the annular side plate 40 of the base 4 and the decorative cover 15 share an end surface, so that the thickness of the air extraction connector 3 can be effectively reduced. In this embodiment, the decorative cover 15 is mounted on the cover plate 5 by means of bonding.
When in installation, a sealing ring 55 is sleeved outside the third convex ring 50, and the sealing ring 55 is installed in the concave ring 54; the clamping hooks 52 on the cover plate 5 are arranged in the connecting clamping holes 44 on the second side plate 40b of the base 4, and the cover plate 5 is arranged on the first mounting table 40c on the base 4 so as to pre-position the cover plate 5 and the base 4; at this time, the third collar 50 is mounted in the mounting groove, and the end of the third collar 50 and the bottom plate 41 together define a ventilation gap, and the third collar 50 and the second collar 46 together define an airflow channel. A sealing ring 55 is located between the second convex ring 46 and the concave ring 54 to seal and interface the second convex ring 46 with the cover plate 5; during air extraction, air flow enters the interface 30 and then sequentially enters the air flow channel, the ventilation gap and the connecting pipeline 47 through the connecting port 46a. At this time, the screw holes 51 on the cover plate 5 correspond to the screw columns 41a on the base 4, and the cover plate 5 is fixedly connected with the bottom plate 41 through screws; finally, the decorative cover 15 is mounted on the cover plate 5 by bonding. It should be noted that, when the second convex ring 46 is tightly matched with the magnet block 13, a connection port 46a must be provided to communicate the opposite port 30 with the air flow channel; conversely, if there is a gap between the second collar 46 and the magnet block 13 through which air flows, the connection port 46a does not need to be provided. In order to reduce the thickness of the air extraction joint, fully utilize the space of the accommodating part, further position the magnet block 13, set up the second convex ring 46 and closely cooperate with magnet block 13, and set up the connection port 46a on the second convex ring 46.
The above air extraction connector 3 is rotated by the mating ring 42 to turn over the air extraction connector 3 to connect or disconnect with the low pressure storage unit 9; when the air extraction joint 3 is connected with the low-pressure storage unit 9, the interface 30 corresponds to the air extraction hole 21; when the air extraction connector 3 is separated from the low-pressure storage unit 9, the air extraction connector 3 is attached to the inner shell plate 18, and the magnet blocks 13 in the air extraction connector 3 correspond to the positions of the ferromagnetic pieces 14 on the mounting piece 6 and interact to adsorb the air extraction connector 3 to the inner shell plate 18.
The arrangement of the air extraction joint 3 is that the magnet block 13, the screw column 41a and the sealing ring 55 are arranged in the space formed by the cover plate 5 and the base 4, and the decorative cover 15 and the base 4 are arranged on the same end face of the ring side plate 40, so that the air extraction joint 3 has complete functions, good sealing performance, compact and exquisite structure and small thickness occupation space, and improves the product quality.
The installation method of the air extraction joint 3 is as follows:
firstly, assembling an air extraction joint 3;
specifically, the sealing ring 55 is sleeved outside the third convex ring 50, and the magnet block 13 is installed in the third convex ring 50; the connecting pipeline 47 is arranged on the first convex ring 45 and extends out of the pipe hole 43; the clamping hooks 52 on the cover plate 5 are arranged in the connecting clamping holes 44 on the second side plate 40b of the base 4, the cover plate 5 is arranged on the first mounting table 40c on the base 4, the third convex ring 50 is arranged in the mounting groove, the end part of the third convex ring 50 and the bottom plate 41 jointly define a ventilation gap, the third convex ring 50 and the second convex ring 46 jointly define an air flow channel, the sealing ring 55 is positioned between the second convex ring 46 and the cover plate 5, and the screw holes 51 on the cover plate 5 correspond to the screw columns 41a on the base 4; then the cover plate 5 is fixedly connected with the bottom plate 41 through screws; finally, the decorative cover 15 is arranged on the cover plate 5 in a bonding mode to form the air extraction joint 3;
secondly, fixing the air extraction key 84 and the switch plate 85 on the mounting seat 8; the suction fitting 3 is then mounted on the mount 8.
Furthermore, the connecting pipeline 47 of the air extraction joint 3 is connected with the pipeline joint 62; finally, the mounting seat 8 is mounted on the mounting piece 6, so that the assembled air extraction joint 3, the mounting seat 8, the air extraction key 84 and the switch board 85 are mounted on the box door 1.
In this embodiment, the connecting pipe 47 extends out of the base 4 to a predetermined length, so as to provide a space for manual operation by an installer.
The arrangement of the air extraction joint 3 can reduce the thickness of the accommodating cavity of the air extraction joint 3 to be close to the sum of the diameter of the connecting pipeline 47 and the thickness of the cover plate in the space formed by the cover plate 5 and the base 4, and effectively reduces the thickness of the air extraction joint. Meanwhile, the magnet block 13, the screw column 41a and the sealing ring 55 are arranged in the limited space, and the decorative cover 15 and the base 4 are arranged on the same end face of the ring side plate 40, so that the air extraction joint 3 has complete functions, good sealing performance, compact and exquisite structure and small thickness occupation space, and the product quality is improved.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (10)

1. A refrigerator, characterized in that it comprises:
a housing defining an insulated low temperature storage compartment;
the box door is rotatably arranged on the box body so as to open or close the low-temperature storage compartment; the top of the box door is provided with a containing part; the box door is connected with the box body through a door hinge plate; the door hinge plate is provided with a connecting sleeve, and the door is provided with a rotating sleeve sleeved on the connecting sleeve; one of the connecting sleeve and the rotating sleeve is provided with a through hole;
the low-pressure storage unit is arranged on one side of the refrigerator door close to the low-temperature storage room, and can be evacuated to form air pressure lower than the atmospheric pressure outside the refrigerator so as to be beneficial to food preservation;
the air extracting device comprises a vacuum pump arranged in the accommodating part and an air extracting pipeline connected with the vacuum pump; the exhaust pipe of the vacuum pump is communicated with the external atmospheric environment of the refrigerator;
the mounting seat is fixed on the box door; the mounting seat is provided with an air extraction key, and one side of the air extraction key, which is close to the front wall of the box door, is provided with a switch board; wherein, a switch connecting wire connected with the air extraction key passes through the inner cavity of the box door and passes through a through hole arranged on the rotary sleeve or the connecting sleeve to be connected with an electric control box in the box body;
the air extraction connector is arranged on the mounting seat in a turnover way so as to be connected with or separated from the low-pressure storage unit; the air extraction joint comprises:
a base defining a receiving portion having an opening at one end; the bottom of the accommodating part is provided with an opposite joint and a first convex ring surrounding the opposite joint;
one end of the connecting pipeline is communicated with the interior of the first convex ring, and the other end of the connecting pipeline penetrates out of the base and is communicated with the exhaust pipeline;
the cover plate is arranged in the accommodating part of the base and is used for sealing the opening end of the base; the cover plate is provided with a concave ring matched with the first convex ring, and a sealing ring is arranged between the concave ring and the end part of the first convex ring;
the air extraction joint is connected with the low-pressure storage unit, the vacuum pump works, and the air in the low-pressure storage unit sequentially passes through the butt joint port, the connecting pipeline, the air extraction pipeline and the vacuum pump.
2. The refrigerator of claim 1, wherein: the cover plate is provided with a third convex ring, and the third convex ring is arranged on the inner ring of the concave ring; and the end part of the third convex ring far away from the cover plate and the bottom of the accommodating part jointly define a ventilation gap;
wherein, one of a magnet block and a ferromagnetic piece is arranged in the third convex ring; the other one of the magnet block and the ferromagnetic piece is arranged on the box door; when the air extraction joint is turned over to be close to the box door, the ferromagnetic piece and the magnet block interact to adsorb the air extraction joint on the box door.
3. The refrigerator of claim 1, wherein: the base is provided with a second convex ring in the first convex ring, the butt joint opening is arranged in a region surrounded by the second convex ring, and the second convex ring is provided with a connecting opening for communicating the inner side and the outer side of the second convex ring;
the second convex ring is sleeved in a third convex ring on the cover plate and corresponds to the magnet block or the ferromagnetic piece in the third convex ring; the second collar and the third collar together define an airflow channel.
4. The refrigerator of claim 1, wherein: the base comprises a bottom plate and a ring side plate surrounding the bottom plate; the bottom plate is provided with a plurality of screw columns, and the screw columns are distributed around the first convex ring;
the cover plate is provided with screw holes corresponding to the screw columns, and the base is fixedly connected with the cover plate through screws.
5. The refrigerator of claim 3, wherein: the end of the ring side plate far away from the bottom plate is provided with a first mounting table for mounting the cover plate.
6. The refrigerator of claim 4, wherein: the ring side plate comprises a second side plate positioned at one end of the bottom plate close to the box door; the second side plate is provided with a pipe passing hole for the connecting pipeline to pass through the accommodating part, and a connecting clamping hole is arranged at the position adjacent to the pipe passing hole;
and the cover plate is provided with a clamping hook matched with the connecting clamping hole on the base.
7. The refrigerator of claim 4, wherein: the cover plate is provided with a second mounting table, and the second mounting table is provided with a decorative cover for shielding the screw hole; the decorative cover and the end part of the annular side plate of the base, which is far away from the bottom plate, are co-end.
8. The refrigerator of claim 1, wherein: the connecting pipeline passes through the base and is at least partially positioned outside the base and is used for being connected with the exhaust pipeline.
9. The refrigerator according to any one of claims 1 to 7, wherein: the box door is provided with a mounting seat, and the air extraction joint is arranged on the mounting seat in a turnover manner; and the mounting seat is provided with an air extraction key.
10. The method for installing an air extraction joint of a refrigerator as claimed in claim 9, wherein: the method comprises the following steps:
firstly, assembling the air extraction joint;
secondly, connecting the air extraction joint to the mounting seat;
then, connecting a connecting pipeline of the air extraction joint with the air extraction pipeline;
and finally, the mounting seat is mounted on the box door.
CN202010796125.5A 2020-08-10 2020-08-10 Refrigerator and method for mounting air extraction joint of refrigerator Active CN114076439B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010796125.5A CN114076439B (en) 2020-08-10 2020-08-10 Refrigerator and method for mounting air extraction joint of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010796125.5A CN114076439B (en) 2020-08-10 2020-08-10 Refrigerator and method for mounting air extraction joint of refrigerator

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CN114076439A CN114076439A (en) 2022-02-22
CN114076439B true CN114076439B (en) 2023-07-21

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Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100632017B1 (en) * 2004-11-09 2006-10-04 엘지전자 주식회사 Apparatus for keeping food long term in refrigerator
CN102261783B (en) * 2010-05-28 2016-05-11 博西华家用电器有限公司 Refrigerating appliance
CN102338542B (en) * 2010-07-22 2015-08-05 博西华家用电器有限公司 Low pressure storage unit and there is the refrigerating appliance of low pressure storage unit
CN111380279B (en) * 2018-12-29 2021-12-07 海信（山东）冰箱有限公司 A kind of refrigerator
CN211204579U (en) * 2019-12-12 2020-08-07 海信（山东）冰箱有限公司 Refrigerator with a door
CN111473577A (en) * 2020-04-17 2020-07-31 海信（山东）冰箱有限公司 Refrigerator with a door

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Address after: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province

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