CN111765693A - Refrigerator with a door - Google Patents

Refrigerator with a door Download PDF

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Publication number
CN111765693A
CN111765693A CN202010619936.8A CN202010619936A CN111765693A CN 111765693 A CN111765693 A CN 111765693A CN 202010619936 A CN202010619936 A CN 202010619936A CN 111765693 A CN111765693 A CN 111765693A
Authority
CN
China
Prior art keywords
box
silencing
door
door hinge
communicated
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.)
Pending
Application number
CN202010619936.8A
Other languages
Chinese (zh)
Inventor
刘铁伟
杨春
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 Shandong Refrigerator Co Ltd
Original Assignee
Hisense Shandong Refrigerator Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Shandong Refrigerator Co Ltd filed Critical Hisense Shandong Refrigerator Co Ltd
Priority to CN202010619936.8A priority Critical patent/CN111765693A/en
Publication of CN111765693A publication Critical patent/CN111765693A/en
Pending legal-status Critical Current

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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
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with compartments at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/08—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation using ducts
    • 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
    • F25D2201/00—Insulation
    • F25D2201/30—Insulation with respect to sound
    • 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
    • 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
    • F25D2317/06—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 with forced air circulation
    • F25D2317/062—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 with forced air circulation along the inside of doors
    • 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
    • F25D2323/00—General constructional features not provided for in other groups of this subclass
    • F25D2323/02—Details of doors or covers not otherwise covered
    • F25D2323/024—Door hinges

Landscapes

  • 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)
  • Refrigerator Housings (AREA)

Abstract

The invention provides a refrigerator, which comprises a door hinge box arranged at the top of a refrigerator body and a vacuum pump arranged at the top of a refrigerator door and provided with an exhaust pipe, wherein a silencing unit is arranged on the door hinge box, one end of the silencing unit is communicated with the exhaust pipe, and the other end of the silencing unit is communicated with the atmospheric environment outside the refrigerator body; the silencing unit includes: the silencer comprises a silencing cavity wall, a first inner inserting pipe and a second inner inserting pipe, wherein the first inner inserting pipe is arranged at one end of the silencing cavity and at least partially positioned in the silencing cavity, the second inner inserting pipe and the first inner inserting pipe are respectively arranged at two opposite ends of the silencing cavity and at least partially positioned in the silencing cavity, the second inner inserting pipe is communicated with the inner side and the outer side of the silencing cavity, and the first inner inserting pipe and the second inner inserting pipe are both arranged in parallel with the central shaft of the silencing cavity wall; the vacuum pump is arranged on the box door, and the silencing unit is arranged in the hinge box at the top of the box body, so that the current space is fully utilized, the transmission of vibration to the box body can be effectively avoided, the noise is reduced, the overall performance of the refrigerator is optimized, and the user experience is improved.

Description

Refrigerator with a door
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator.
Background
Refrigerators occupy an important share of the market as indispensable electric appliances in home life. With the increasing requirements of consumers on the quality of fresh food, the requirements on refrigerators are also increasing, and refrigerators are required to have higher configuration and stronger functions, and especially, it is desirable that the stored fresh food can have a longer storage period, so that the freshness of food materials is ensured, and the loss of nutritional ingredients is prevented.
In order to better store the food, it has been developed to provide a vacuum chamber in the refrigerator, and the vacuum chamber is vacuumized by a vacuuming device. The main function of the vacuum is to remove oxygen from the vacuum chamber to prevent food from deteriorating. When the vacuumizing device works, vibration noise is generated and is directly transmitted to the refrigerator body, the overall performance of the refrigerator is affected, and the user experience is reduced.
The invention is provided in view of the above.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the purpose, the invention adopts the technical scheme that:
a refrigerator, comprising:
a cabinet defining an insulated low temperature storage compartment;
the door hinge assembly is arranged at the top of the box body and comprises a door hinge plate and a door hinge box covered outside the door hinge plate;
a door rotatably coupled to the door hinge to open or close the low-temperature storage compartment;
a low-pressure storage unit, wherein air can be pumped to form air pressure lower than the external atmospheric pressure of the refrigerator so as to keep food fresh;
the vacuum pump is arranged at the top of the box door; the low-pressure storage unit is provided with an exhaust pipe and an exhaust pipe communicated with the low-pressure storage unit;
the silencing unit is arranged on the door hinge box; the noise reduction unit includes:
a sound-deadening chamber wall defining a sound-deadening chamber;
the first inner inserting pipe is arranged at one end of the silencing chamber and is at least partially positioned in the silencing chamber; the first inner inserting pipe is communicated with the silencing chamber and the exhaust pipe;
the second inner inserting pipe and the first inner inserting pipe are respectively arranged at two opposite ends of the silencing chamber, and at least part of the second inner inserting pipe and the first inner inserting pipe are positioned in the silencing chamber; the second inner inserting tube is communicated with the silencing chamber and the atmosphere outside the box body;
wherein the first inner insert tube and the second inner insert tube are both arranged in parallel with the central axis of the sound attenuation cavity wall.
Preferably, the effective length of the sound-deadening chamber along the central axis direction is marked as L; the first inner inserting pipe is located in the silencing chamber and has the length of L/4, and the second inner inserting pipe is located in the silencing chamber and has the length of L/2.
Preferably, the silencing cavity wall comprises a ring plate arranged on the box bottom of the door hinge box, a sealing plate is arranged at one end, far away from the box bottom of the door hinge box, of the ring plate, and the ring plate, the sealing plate and the box bottom of the door hinge box jointly define a silencing chamber.
Preferably, an installation platform is arranged at one end, away from the door hinge box, of the ring plate and used for installing the sealing plate.
Preferably, the ring plate comprises a first end cover and a second end cover which are arranged oppositely; the first inner insert tube is arranged on the first end cover and is integrally formed with the first end cover; the second inner insert tube is arranged on the second end cover and is integrally formed with the second end cover.
Preferably, the first inner insertion pipe of the silencing unit is at least partially positioned outside the silencing chamber so as to be communicated with the exhaust pipe through a second pipeline; the second inner inserting pipe forms a first communicating hole on the wall of the silencing cavity; and the door hinge box is provided with a second communication hole communicated with the atmospheric environment outside the box body, and the second communication hole is communicated with the first communication hole.
Preferably, a first connecting piece is arranged on the door hinge plate; the box door is provided with a second connecting piece which is rotationally connected with the first connecting piece; wherein the box door rotates around the rotating shaft of the second connecting piece; at least one of the first connecting piece and the second connecting piece is provided with a pipeline channel;
the second pipeline passes through the pipeline channel; and the second pipeline is communicated with the first inner inserting pipe through a hose or a rotary joint;
when the vacuum pump works, air in the low-pressure storage unit sequentially passes through the air suction pipe, the vacuum pump, the exhaust pipe and the silencing unit, and is finally discharged out of the box body through the silencing unit.
Preferably, a foaming layer is arranged in the box door, and the second pipeline is arranged in the foaming layer.
Preferably, the top of the box door is provided with an accommodating part for installing the vacuum pump; the bottom of the accommodating part is provided with a first joint extending to the opening end of the accommodating part; the first joint is communicated with an exhaust pipe of the vacuum pump.
Preferably, a cover is sleeved outside one end of the accommodating part close to the first joint; and a second joint is arranged on the housing, one end of the second joint is communicated with the first joint on the accommodating part, and the other end of the second joint is communicated with the second pipeline.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a door hinge box arranged at the top of a refrigerator body and a vacuum pump arranged at the top of a refrigerator door and provided with an exhaust pipe, wherein a silencing unit is arranged on the door hinge box, one end of the silencing unit is communicated with the exhaust pipe, and the other end of the silencing unit is communicated with the atmospheric environment outside the refrigerator body; the silencing unit includes: the silencer comprises a silencing cavity wall, a first inner inserting pipe and a second inner inserting pipe, wherein the first inner inserting pipe is arranged at one end of the silencing cavity and at least partially positioned in the silencing cavity, the second inner inserting pipe and the first inner inserting pipe are respectively arranged at two opposite ends of the silencing cavity and at least partially positioned in the silencing cavity, the second inner inserting pipe is communicated with the inner side and the outer side of the silencing cavity, and the first inner inserting pipe and the second inner inserting pipe are both arranged in parallel with the central shaft of the silencing cavity wall; the vacuum pump is arranged on the box door, and the silencing unit is arranged in the hinge box at the top of the box body, so that the current space is fully utilized, the transmission of vibration to the box body can be effectively avoided, the noise is reduced, the overall performance of the refrigerator is optimized, and the user experience is improved.
Drawings
FIG. 1 is a schematic structural view illustrating a door of a refrigerator according to the present invention in an opened state;
FIG. 2 is a schematic diagram illustrating a relative arrangement of a door and a vacuum pump assembly of the refrigerator according to the present invention;
FIG. 3 is an exploded view of a door hinge assembly of the refrigerator according to the present invention;
FIG. 4 is a schematic piping diagram illustrating the vacuum pump assembly of the refrigerator according to the present invention;
FIG. 5 is a schematic diagram illustrating the relative positions of the vacuum pump assembly and the door receiving portion of the refrigerator according to the present invention;
FIG. 6 is a schematic structural view of a top of a door of a refrigerator according to the present invention;
FIG. 7 is an exploded view of the top of the door of the refrigerator according to the present invention;
FIG. 8 is an exploded view of the top of the door of the refrigerator according to another aspect of the present invention;
FIG. 9 is an exploded view of the top of the door of the refrigerator according to another aspect of the present invention;
FIG. 10 is a schematic view of a shielding cover at the top of the door of the refrigerator according to the present invention;
FIG. 11 is a first schematic view illustrating a partial structure of a top of a door of a refrigerator according to the present invention;
FIG. 12 is a second schematic view of a top portion of a refrigerator door according to the present invention;
FIG. 13 is a third schematic view of a top portion of a door of a refrigerator according to the present invention;
FIG. 14 is a plan view of a top of a door of the refrigerator according to the present invention;
FIG. 15 is a cross-sectional view taken along line A-A of FIG. 14;
FIG. 16 is a cross-sectional view taken in the direction B-B of FIG. 14;
FIG. 17 is an exploded view of the door hinge assembly and the silencing unit of the refrigerator of the present invention;
fig. 18 is a schematic structural view of a door hinge box of a refrigerator according to the present invention and a sectional view thereof.
In the above figures:
a refrigerator 1; a box body 2; a housing 2 a; an inner container 2 b; a door 13; a top plate 14; the sleeve 15 is rotated; a refrigerating chamber 10; a door hinge assembly 6; a door hinge plate 7; a fixed seat plate 71; a connection seat plate 72; a connecting sleeve 73; a fastening position 74; the first connection hole group 75; a door hinge box 8; a box bottom 81; a box side plate 82; a first hook 83; a second set of connecting holes 84; a vacuum pump 3; an exhaust tube 38; an exhaust pipe 39; a first conduit 16; a second pipe 17; a rubber sleeve 9; the perforations 13 a; a main body portion 91; a mounting cavity 92; a projection 93; the accommodating portion 18; a recess 19; the second latch 41; a stopper 42; a mounting gap 43; a snap 44; a first joint 45; a first latch 46; a first shroud 47; a first end cap 48; a shielding cover 30; a convex plate 31; a second hook 32; a housing 33; a chucking hole 34; a second shroud 35; a second end cap 36; a second joint 37; the guide post 37 a; a baffle 37 b; a concave ring 37 c; a muffler unit 24; a ring plate 25; the mount table 25 a; a first communication hole 252; a first end cap 261; a second end cap 262; a sealing plate 26, a sound-deadening chamber 27; a first inner cannula 281; a second inner cannula 282; the second communication hole 85.
Detailed Description
The present invention is further described below in conjunction with specific examples to enable those skilled in the art to better understand the present invention and to practice it, but the scope of the present invention as claimed is not limited to the scope described in the specific embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
It should be noted that all directional indicators (such as up, down, left, right, front, and back) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1-16, a refrigerator 1, the refrigerator 1 includes a heat-insulating box 2, the box 2 includes a casing 2a, an inner container 2b and a heat-insulating layer (not shown) therebetween. The cabinet 2 defines a plurality of insulated low-temperature storage compartments to store food and the like. In the present embodiment, these low-temperature storage compartments are a refrigerating compartment 10 located at the upper portion and a freezing compartment located at the bottom portion, respectively. The low-temperature storage compartments may be closed by respective corresponding door 13. The refrigerating chamber 10 is provided with a side-by-side door 13, and the freezing chamber is also provided with a side-by-side door.
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 throttle device (not shown), and an evaporator (not shown). Since such a refrigeration system is well known in the art, further description thereof is omitted. Of course, other types of refrigeration systems (e.g., absorption refrigeration systems, thermoelectric refrigeration systems) may be used with the refrigerator 1.
The refrigerator 1 is provided with a low pressure storage unit that can be maintained in a low pressure state and a vacuum pump assembly for pumping gas from the low pressure storage unit. In the present embodiment, the low pressure storage unit is provided inside the refrigerating compartment 10. In this embodiment, the vacuum pump assembly is disposed on the top of the door 13 of the refrigerating chamber 10 in which the low pressure storage unit is located. It should be understood that in other embodiments, the low pressure storage unit may be disposed within other low temperature storage compartments, such as a temperature change compartment having a temperature range that is switchable between a refrigerated temperature zone and a refrigerated temperature zone. The vacuum pump assembly is located on top of the door 13 of the cryogenic storage compartment in which the low pressure storage unit is located.
When the low pressure storage unit is turned off and the vacuum pump assembly is turned on, gas located in the low pressure storage chamber is evacuated and the low pressure storage chamber is in a low pressure state. According to a preferred embodiment of the present invention, at the end of the evacuation process, the pressure within the low pressure storage chamber is between one standard atmosphere and absolute vacuum. Since the pressure in the low-pressure storage chamber is lower than the standard atmospheric pressure, the person skilled in the art is also commonly referred to as "vacuum storage" and this state in which the pressure is lower than the standard atmospheric pressure is referred to as "vacuum state".
It should be noted that the low-pressure storage unit in the present invention may be configured in the form of a drawer, may also be configured in the form of a box (fixed or detachable form, which is connected to a vacuum pump for vacuum pumping when vacuum pumping is required), and may also be configured in the form of a plastic packaging bag (sealed after vacuum pumping), and the specific form thereof is determined according to a specific scheme.
As shown in fig. 1-3, a door hinge assembly 6 is arranged on a top plate 14 of the box body 2, and the door hinge assembly 6 comprises a door hinge plate 7 and a door hinge box 8; a first connecting piece is arranged on the door hinge plate 7, and a second connecting piece which is rotationally connected with the first connecting piece is arranged on the door 13; and at least one of the first connecting piece and the second connecting piece is provided with a pipeline channel. In this embodiment, the first connecting member includes a connecting sleeve 73, and the second connecting member includes a rotating sleeve 15 sleeved inside or outside the connecting sleeve 73; the inner bore of the rotating sleeve 15 or the connecting sleeve 73 located in the inner ring forms a line channel.
Specifically, the door hinge plate 7 includes a fixing seat plate 71 and a connecting seat plate 72. The fixed seat plate 71 is attached to the outer surface of the top plate 14 of the box body 2; the fixed seat plate 71 is provided with a first connection hole group 75, and screws are installed in the first connection hole group 75 to fix the fixed seat plate 71 with the top plate 14 of the cabinet 2. The connection seat plate 72 is extended from the front side of the case 2 and provided with a connection sleeve 73. The top of the box door 13 is provided with a rotating sleeve 15, and the rotating sleeve 15 is sleeved outside or inside the connecting sleeve 73 so as to cooperate with each other to enable the box door 13 to rotate around the central axis of the connecting sleeve 73. Wherein the edge of the door hinge plate 7 is provided with a plurality of fastening positions 74 protruding upwards.
The door hinge box 8 includes a box bottom 81 and a box side plate 82 surrounding the box bottom 81. The box side plate 82 is provided with a plurality of first hooks 83 corresponding to the fastening positions 74 on the door hinge plate 7, and the first hooks 83 are fastened with the fastening positions 74 on the door hinge plate 7 so as to fixedly connect the door hinge plate 7 with the door hinge box 8. Wherein the door hinge plate 7 is completely mounted in the door hinge box 8. A second set of connecting holes 84 is provided in the box bottom 81 of the door hinge box 8, and screws are installed in the second set of connecting holes 84 to fix the door hinge box 8 to the top plate 14 of the box body 2. Wherein, a silencing unit 24 with one end communicated with the atmosphere outside the refrigerator 1 is arranged in the door hinge box 8.
As shown in fig. 1-16, the vacuum pump assembly includes a vacuum pump 3 and a rubber sleeve 9 sleeved outside the vacuum pump 3. The vacuum pump 3 is provided with an exhaust pipe 39 and an exhaust pipe 38. The evacuation pipe 38 is arranged in parallel with the exhaust pipe 39 and is located at the same end of the vacuum pump 3. The first duct 16 is connected to the air exhaust duct 38, and the first duct 16 extends downward along the door 13 and bends at a lower region of the door 13 to extend toward a side of the door 13 close to the refrigerating compartment 10. In this embodiment, a through hole 13a is formed on a side of the door 13 close to the refrigerating chamber 10, and the first pipeline 16 is disposed in the foaming layer of the door 13, extends downward in the foaming layer, and finally passes through the through hole 13 a. The exhaust pipe 39 is connected with a second pipeline 17, the second pipeline 17 extends towards the rotating sleeve 15 and penetrates through the rotating sleeve 15 or the connecting sleeve 73 positioned at the inner ring from bottom to top; one end of the second pipeline 17 far away from the vacuum pump 3 is communicated with a silencing unit 24; the silencing unit 24 can absorb the noise of the gas discharged from the second pipe 17 to optimize the overall performance of the refrigerator and improve the user experience.
Specifically, when the second pipeline 17 is a flexible pipe, the silencing unit 24 and the second pipeline 17 may be directly connected, so as to ensure the rotation function of the door 13 and maintain the connectivity between the silencing unit 24 and the second pipeline 17 when the door 13 is opened or closed; if the second pipeline 17 is a hard pipe, the silencing unit 24 and the second pipeline 17 can be connected through a hose or a rotary joint, so that the rotation function of the door 13 is ensured during the opening or closing process of the door 13, and the connectivity between the silencing unit 24 and the second pipeline 17 is maintained. When the door 13 is closed, the first conduit 16 is in communication with the low pressure storage unit; when the vacuum pump 3 is in operation, the air in the low-pressure storage unit passes through the first pipeline 16, the air suction pipe 38, the vacuum pump 3, the exhaust pipe 39, the second pipeline 17 and the silencing unit 24 communicated with the second pipeline in sequence, and finally is exhausted out of the box body 2 from the other end of the silencing unit 24. So as to avoid the influence of the smell of the food in other areas in the refrigerating chamber 10 caused by the direct discharge of the gas pumped out from the low-pressure storage unit into the refrigerator 1 and the influence of the fresh-keeping effect of the food.
In this embodiment, the second pipeline 17 is disposed in the foaming layer of the refrigerator door 13, extends toward the rotating sleeve 15 in the foaming layer, and finally passes through the rotating sleeve 15 or the connecting sleeve 73 located at the inner ring to communicate with the sound deadening unit 24 communicating with the atmosphere outside the refrigerator 1. In this embodiment, the first pipeline 16 and the second pipeline 17 are arranged to exhaust the gas at a distance from the vacuum pump 3, thereby effectively avoiding the condensation caused by the gas exhausted around the vacuum pump 3. In addition, first pipeline 16 and second pipeline 17 all locate the foaming layer, can utilize the heat insulating ability of foaming layer to make the gas temperature through in first pipeline 16 and the second pipeline 17 obtain certain promotion, lead to the condensation of gas outlet department when can avoiding giving vent to anger.
Specifically, in the present embodiment, the first pipeline 16 extends in a direction perpendicular to the door 13 when passing through the through hole 13 a. When the door 13 is closed, the first pipe 16 is communicated with the low-pressure storage chamber of the low-pressure storage unit; when the door 13 is opened, the first pipe 16 is separated from the low pressure storage unit, and the low pressure storage unit is sealed. As a practical way, a communicating valve is arranged on the low-pressure storage unit, when the box door 13 is closed, the communicating valve is opened under the triggering action of the first pipeline 16, and the first pipeline 16 is communicated with the interior of the low-pressure storage unit; when the door 13 is opened, the first pipe 16 is separated from the low pressure storage unit, the communication valve is closed, and the low pressure storage unit is sealed. The manner of communication is not limited to that described in the present embodiment.
As another practical way, the low pressure storage unit is connected to the door 13, and the first pipeline 16 is directly communicated with the low pressure storage unit; when the door 13 is opened, the door 13 drives the low-pressure storage unit arranged on the door to move out of the low-pressure storage chamber, and a user opens the low-pressure storage unit as required to place and take articles.
The rubber sleeve 9 is abutted against the accommodating part 18, the rubber sleeve 9 is provided with a main body part 91 for mounting the vacuum pump 3, and the main body part 91 is provided with a mounting cavity 92 which is consistent with the shape of the vacuum pump 3; the radial dimension of the mounting cavity 92 of the main body 91 is not larger than the radial dimension of the corresponding position of the vacuum pump 3, so that the rubber sleeve 9 is tightly attached to the vacuum pump 3 and the vibration on the vacuum pump 3 is absorbed.
The periphery of the main body 91 is provided with a plurality of protrusions 93 which are arranged in parallel along the central axis of the main body 91 and surround the main body 91, so as to improve the deformability of the rubber sleeve 9 and improve the vibration damping effect. In this embodiment, the shore hardness of the rubber sleeve 9 is 35 to 40.
The top of the door 13 of the refrigerator 1 is formed with an accommodating portion 18 having an open upper end for accommodating the vacuum pump 3, and a shielding cover 30 is installed at the open end of the accommodating portion 18 to close the open end thereof. A groove 19 is arranged at the edge of the opening end of the containing part 18, and a convex plate 31 matched with the groove 19 is arranged at the edge of the shielding cover 30; the convex plate 31 is arranged in the groove 19; the sealing compound is injected to sealingly connect the cover 30 to the receptacle 18. The arrangement seals the vacuum pump assembly in the accommodating part 18 at the top of the box door 13, so that the whole system is airtight, and the noise generated during the operation of the vacuum pump assembly is effectively prevented from being transmitted out by taking gas as a medium. In this embodiment, the accommodating portion 18 includes a first enclosing plate 47 and first end caps 48 at both ends of the first enclosing plate 47; the inner walls of two opposite first enclosing plates 47 of the accommodating part 18 are provided with second clamping blocks 41; the two opposite sides of the shielding cover 30 are provided with second hooks 32, and the second hooks 32 are matched with the second latch blocks 41 to fixedly connect the shielding cover 30 with the accommodating portion 18.
Both ends of the bottom of the accommodating part 18 are provided with limiting pieces 42, and the two limiting pieces 42 jointly define an installation gap 43 to accommodate the vacuum pump 3; the stoppers 42 abut on both ends of the vacuum pump 3 to limit the position of the vacuum pump 3. The inner wall of the first enclosing plate 47 of the accommodating part 18 is provided with a clamping protrusion 44, and the clamping protrusion 44 is matched with the rubber sleeve 9 to fix the vacuum pump 3. In this embodiment, the locking protrusion 44 abuts against the main body 91 of the rubber sleeve 9, that is, the locking protrusion 44 is located between two adjacent protrusions 93 on the rubber sleeve 9. The above arrangement of the limiting member 42 and the locking protrusion 44 in the accommodating portion 18 can effectively fix the vacuum pump assembly, and is convenient to install.
In this embodiment, the outer diameter of the rubber sleeve 9 (the protrusion 93) is not smaller than the corresponding position of the accommodating portion 18, so that when the rubber sleeve 9 is installed inside the accommodating portion 18, the rubber sleeve 9 contacts with the inner wall of the accommodating portion 18 and can interact with the inner wall of the accommodating portion 18 to generate a friction force, thereby ensuring firm installation.
As shown in fig. 15, and referring to fig. 7-9, the bottom of the receptacle 18 is provided with a first tab 45 extending toward the open end thereof; the first joint 45 is connected to the exhaust pipe 39 of the vacuum pump 3. A cover shell 33 is sleeved outside one end of the accommodating part 18 close to the first joint 45; the outer wall surface of the accommodating part 18 is provided with a first clamping block 46, the housing 33 is provided with a clamping hole 34 matched with the first clamping block 46, and the accommodating part 18 is fixedly connected with the housing 33 through the matching of the first clamping block 46 and the clamping hole 34. In this embodiment, the first joint 45 is provided at one end of the accommodating portion 18, and the housing 33 includes a second enclosing plate 35 covering the outside of the first enclosing plate 47 and a second end cap 36 covering the outside of the first end cap 48 on the side of the first joint 45. The first latch 46 is disposed on a first enclosing plate 47 of the accommodating portion 18 and a first end cover 48 close to the first joint 45; the locking hole 34 is formed in the second enclosing plate 35 and the second end cap 36 of the housing 33 to enhance the connection strength between the housing 33 and the accommodating portion 18 and improve the mounting stability.
The housing 33 is provided with a second joint 37, and the second joint 37 is provided with a second pipeline 17. The second tab 37 communicates with the first tab 45 on the first collar 47 of the receptacle 18; i.e., the second joint 37 communicates with the exhaust pipe 39. The second joint 37 comprises a guide post 37a at an end far away from the housing 33, and the guide post 37a is in an inverted cone shape so as to facilitate the installation of the second pipeline 17; a baffle 37b is arranged at the position of the second joint 37, which is close to the housing 33, and a concave ring 37c is arranged between the baffle 37b and the guide post 37a, so that the second pipeline 17 is effectively prevented from falling off; the second line 17 is mounted on the second connector 37 by means of a guide 37a and is stopped by a stop 37 b. The expansion degree of the second pipeline 17 at the concave ring 37c is smaller than that of the second pipeline 17 at the guide post 37a, so that the second pipeline 17 can be effectively prevented from falling off. Wherein the inner diameter of the second pipeline 17 is marked as D1The outer diameter of the guide post 37a near the end of the concave ring 37c is D2(ii) a Wherein D is1＜D2。
The box door 13 is closed, the first pipeline 16 is communicated with the low-pressure storage unit, and when the vacuum pump 3 works, air in the low-pressure storage unit sequentially passes through the first pipeline 16, the air suction pipe 38, the vacuum pump 3, the exhaust pipe 39, the second pipeline 17 and the silencing unit 24, and is finally exhausted out of the box body 2 through the silencing unit 24. So as to avoid the gas pumped out from the low-pressure storage unit being directly discharged into the refrigerator 1 to cause the food in other areas in the refrigerating chamber 10 to be tainted with each other and influence the fresh-keeping effect of the food; on the other hand, the vacuum pump is arranged on the refrigerator door, so that the vibration can be effectively avoided from being transmitted to the refrigerator body, the noise is reduced, the overall performance of the refrigerator is optimized, and the user experience is improved.
Specifically, referring to fig. 17-18, the sound attenuating unit 24 includes a ring plate 25 formed on the box bottom 81 of the door hinge box 8, the ring plate 25 having a set of oppositely disposed side plates, a set of oppositely disposed first and second end caps 261 and 262; a first end cover 261 and a second end cover 262 are connected with the corresponding ends of the two side plates; an installation platform 25a is arranged at the opening end of the annular plate 25, and a sealing plate 26 is installed on the installation platform 25 a; the upper ring plate 25, the closure plate 26 and the box bottom 81 of the door hinge box 8 together define a sound damping chamber 27. The first end cap 261 is provided with a first inner insertion tube 281 for communicating the inside and outside of the sound-deadening chamber 27, and the second end cap 262 is provided with a second inner insertion tube 282 for communicating the inside and outside of the sound-deadening chamber 27. Wherein the first inner insert tube 281 and the second inner insert tube 282 are both disposed parallel to the central axis of the muffling chamber 27. Wherein the first inner cannula 281 is at least partially disposed outside the muffling chamber 27, and the second inner cannula 282 forms a first communication hole 252 on the second end cap 262; and a second communication hole 85 is formed in the door hinge box 8 to communicate the noise reduction unit with the external atmosphere environment of the refrigerator. In the present embodiment, the second communication hole 85 is provided in a region of the case side plate 82 corresponding to the second end plate 25 b. The end portion located outside the sound-deadening chamber 27 through the first inner pipe 281 is connected to the second pipe 17, and is connected to the atmosphere outside the refrigerator through the second inner pipe 282 and the second communication hole 85. In this embodiment, the ring plate 25 is integrally formed with the door hinge box 8, the first inner insert 281 is integrally formed with the first end cap 261, and the second inner insert 282 is integrally formed with the second end cap 262.
The air flow enters the sound-deadening chamber 27 through one of the first inner insertion tube 281 and the second inner insertion tube 282 and then flows out through the other one, wherein the difference between the cross-sectional areas of the first inner insertion tube 281 and the second inner insertion tube 282 and the cross-sectional area of the sound-deadening chamber 27 is large, namely, when the air flow passes through the sound-deadening unit 24, the cross section of a pipeline through which the air flow passes is suddenly enlarged and then suddenly contracted, so that the acoustic impedance in the sound-deadening chamber 27 is suddenly changed, the sound wave propagation direction is changed, and phenomena such as reflection, interference and the like occur in the sound-deadening chamber 27, thereby achieving the.
In the present embodiment, the effective length of the sound-deadening chamber 27 in the direction of the central axis thereof is denoted by L. Wherein the first inner insert tube 281 has a length of L/4 in the sound-deadening chamber 27, and the second inner insert tube 282 has a length of L/2 in the sound-deadening chamber 27; the parameter setting can eliminate the low-frequency exhaust sound of the vacuum pump so as to effectively reduce noise.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims (10)

1. The refrigerator is characterized in that: it includes:
a cabinet defining an insulated low temperature storage compartment;
the door hinge assembly is arranged at the top of the box body and comprises a door hinge plate and a door hinge box covered outside the door hinge plate;
a door rotatably coupled to the door hinge to open or close the low-temperature storage compartment;
a low-pressure storage unit, wherein air can be pumped to form air pressure lower than the external atmospheric pressure of the refrigerator so as to keep food fresh;
the vacuum pump is arranged at the top of the box door; the low-pressure storage unit is provided with an exhaust pipe and an exhaust pipe communicated with the low-pressure storage unit;
the silencing unit is arranged on the door hinge box; the noise reduction unit includes:
a sound-deadening chamber wall defining a sound-deadening chamber;
the first inner inserting pipe is arranged at one end of the silencing chamber and is at least partially positioned in the silencing chamber; the first inner inserting pipe is communicated with the silencing chamber and the exhaust pipe;
the second inner inserting pipe and the first inner inserting pipe are respectively arranged at two opposite ends of the silencing chamber, and at least part of the second inner inserting pipe and the first inner inserting pipe are positioned in the silencing chamber; the second inner inserting tube is communicated with the silencing chamber and the atmosphere outside the box body;
wherein the first inner insert tube and the second inner insert tube are both arranged in parallel with the central axis of the sound attenuation cavity wall.
2. The refrigerator according to claim 1, wherein: the effective length of the silencing chamber along the direction of the central axis is marked as L; the first inner inserting pipe is located in the silencing chamber and has the length of L/4, and the second inner inserting pipe is located in the silencing chamber and has the length of L/2.
3. The refrigerator according to claim 1 or 2, characterized in that: the silencing cavity wall comprises a ring plate arranged on the box bottom of the door hinge box, a sealing plate is arranged at one end, far away from the box bottom, of the door hinge box, of the ring plate, and a silencing chamber is defined by the ring plate, the sealing plate and the box bottom of the door hinge box.
4. The refrigerator according to claim 3, wherein: and one end of the ring plate, which is far away from the box bottom of the door hinge box, is provided with a mounting platform for mounting the sealing plate.
5. The refrigerator according to claim 3, wherein:
the ring plate comprises a first end cover and a second end cover which are oppositely arranged; the first inner insert tube is arranged on the first end cover and is integrally formed with the first end cover; the second inner insert tube is arranged on the second end cover and is integrally formed with the second end cover.
6. The refrigerator according to claim 1, wherein: the first inner inserting pipe of the silencing unit is at least partially positioned outside the silencing chamber so as to be communicated with the exhaust pipe through a second pipeline; the second inner inserting pipe forms a first communicating hole on the wall of the silencing cavity; and the door hinge box is provided with a second communication hole communicated with the atmospheric environment outside the box body, and the second communication hole is communicated with the first communication hole.
7. The refrigerator according to claim 6, wherein: the door hinge plate is provided with a first connecting piece; the box door is provided with a second connecting piece which is rotationally connected with the first connecting piece; wherein the box door rotates around the rotating shaft of the second connecting piece; at least one of the first connecting piece and the second connecting piece is provided with a pipeline channel;
the second pipeline passes through the pipeline channel; and the second pipeline is communicated with the first inner inserting pipe through a hose or a rotary joint;
when the vacuum pump works, air in the low-pressure storage unit sequentially passes through the air suction pipe, the vacuum pump, the exhaust pipe and the silencing unit, and is finally discharged out of the box body through the silencing unit.
8. The refrigerator according to claim 7, wherein: a foaming layer is arranged in the box door, and the second pipeline is arranged in the foaming layer.
9. The refrigerator according to claim 6, wherein: the top of the box door is provided with an accommodating part for installing the vacuum pump; the bottom of the accommodating part is provided with a first joint extending to the opening end of the accommodating part; the first joint is communicated with an exhaust pipe of the vacuum pump.
10. The refrigerator according to claim 9, wherein: a housing is sleeved outside one end of the accommodating part close to the first joint; and a second joint is arranged on the housing, one end of the second joint is communicated with the first joint on the accommodating part, and the other end of the second joint is communicated with the second pipeline.
CN202010619936.8A 2020-07-01 2020-07-01 Refrigerator with a door Pending CN111765693A (en)

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CN202010619936.8A CN111765693A (en) 2020-07-01 2020-07-01 Refrigerator with a door

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CN202010619936.8A CN111765693A (en) 2020-07-01 2020-07-01 Refrigerator with a door

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CN111765693A true CN111765693A (en) 2020-10-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022000741A1 (en) * 2020-07-01 2022-01-06 海信（山东）冰箱有限公司 Refrigerator

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Publication number Priority date Publication date Assignee Title
CN2192576Y (en) * 1994-05-13 1995-03-22 刘国庆 Keep fresh container bag
CN201396998Y (en) * 2009-03-30 2010-02-03 浙江春晖智能控制股份有限公司 Thermostatic expansion valve with silencing structure
CN102121481A (en) * 2011-04-01 2011-07-13 江苏大学 Centrifugal pump combined type water muffler
CN106895650A (en) * 2017-01-24 2017-06-27 青岛海高设计制造有限公司 Vacuum-pumping density seal apparatus and the refrigerator with the vacuum-pumping density seal apparatus
EP3450893A1 (en) * 2017-08-29 2019-03-06 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. A food bag vacuuming system, an operation method thereof and a cooling device comprising the same
CN111197899A (en) * 2020-03-09 2020-05-26 海信（山东）冰箱有限公司 A kind of refrigerator

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Publication number Priority date Publication date Assignee Title
CN2192576Y (en) * 1994-05-13 1995-03-22 刘国庆 Keep fresh container bag
CN201396998Y (en) * 2009-03-30 2010-02-03 浙江春晖智能控制股份有限公司 Thermostatic expansion valve with silencing structure
CN102121481A (en) * 2011-04-01 2011-07-13 江苏大学 Centrifugal pump combined type water muffler
CN106895650A (en) * 2017-01-24 2017-06-27 青岛海高设计制造有限公司 Vacuum-pumping density seal apparatus and the refrigerator with the vacuum-pumping density seal apparatus
EP3450893A1 (en) * 2017-08-29 2019-03-06 Vestel Beyaz Esya Sanayi Ve Ticaret A.S. A food bag vacuuming system, an operation method thereof and a cooling device comprising the same
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WO2022000741A1 (en) * 2020-07-01 2022-01-06 海信（山东）冰箱有限公司 Refrigerator

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