CN114136039B - Refrigerator with a refrigerator body - Google Patents
Refrigerator with a refrigerator body Download PDFInfo
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- CN114136039B CN114136039B CN202010914640.9A CN202010914640A CN114136039B CN 114136039 B CN114136039 B CN 114136039B CN 202010914640 A CN202010914640 A CN 202010914640A CN 114136039 B CN114136039 B CN 114136039B
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- Prior art keywords
- joint
- butt joint
- low
- annular plate
- plate
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- 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
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- 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
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- 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
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- 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
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- 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
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- 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
Abstract
The invention provides a refrigerator, which comprises a refrigerator body defining a heat-insulating low-temperature storage compartment, a refrigerator door arranged on the refrigerator body, a low-pressure storage unit accommodated in the low-temperature storage compartment, a vacuum pump, an air suction pipeline connected with the vacuum pump, an air suction joint arranged on the refrigerator door and communicated with the air suction pipeline, and a connecting piece for connecting the air suction joint and the low-pressure storage unit; the top of the box door is provided with a containing part for containing the vacuum pump, and the connecting piece comprises a first butt joint used for being detachably connected with the air extraction joint, a second butt joint used for being detachably connected with the low-pressure storage unit, and a connecting pipe for connecting the first butt joint and the second butt joint; the arrangement of the invention makes an air extraction joint suitable for extracting air from low-pressure storage units at different positions, so that a user is not limited by the positions of the low-pressure storage units and the air extraction joint, thereby enlarging the fresh-keeping range, meeting various requirements of the user and improving the satisfaction of the user.
Description
Technical Field
The invention belongs to the technical field of household refrigerators, and particularly relates to a refrigerator.
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 arranged on the box body to open or close the low-temperature storage compartment; the top of the box door is provided with a containing part;
the low-pressure storage unit is accommodated in 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 positioned in the accommodating part and an air extracting pipeline connected with the vacuum pump;
the air extraction joint is arranged on the box door and is communicated with the air extraction pipeline;
a connector, comprising:
the first butt joint is used for being detachably connected with the air extraction joint;
the second butt joint is used for being detachably connected with the low-pressure storage unit;
one end of the connecting pipe is connected with the first butt joint, and the other end of the connecting pipe is connected with the second butt joint;
when vacuumizing, the first butt joint is connected with the air extraction joint, the second butt joint is connected with the low-pressure storage unit, the vacuum pump works, and gas in the low-pressure storage unit sequentially passes through the second butt joint, the connecting pipe, the first butt joint, the air extraction pipeline and the vacuum pump.
Preferably, the first butt joint and the second butt joint each comprise a butt joint plate, a second annular plate arranged around the butt joint plate, and a connecting joint used for being connected with the connecting pipe;
the partial area of the butt plate is recessed to one side far away from the second annular plate to form a first recessed part; the connecting joint is communicated with two opposite sides of the first concave part.
Preferably, an installation cavity with an opening formed at one end far away from the second annular plate is arranged in the first concave part; the connecting joint is arranged in the mounting cavity, the connecting joint and the cavity wall of the mounting cavity jointly define a mounting groove, and the connecting joint is sleeved on the connecting joint and is arranged in the mounting groove.
Preferably, a third annular plate concentrically arranged with the second annular plate is arranged on the butt joint plate around the first concave part, and the third annular plate, the second annular plate and the butt joint plate jointly define a matching groove.
Preferably, the connecting joint is arranged on the first concave part and is positioned in the circumferential direction of the first concave part around the central shaft of the second annular plate.
Preferably, the first recess portion is formed with a second recess portion recessed toward a side away from the second ring plate;
the cross section of the second concave part and the first concave part which are parallel to the butt plate is smaller than that of the first concave part, and the cross section of the first concave part is smaller than that of the inner ring of the second ring plate;
wherein, the connection joint is arranged on the second concave part.
Preferably, the connecting joint is arranged on the circumference of the second concave part surrounding the central shaft of the second annular plate.
Preferably, the connection joint is arranged parallel to the abutment plate.
Preferably, the air extraction connector is provided with an interface, and the interface is communicated with the air extraction pipeline; the air extraction joint is provided with a first annular plate around the butt joint opening, and a first sealing sleeve is sleeved on the first annular plate; the first annular plate is arranged in the second annular plate of the first butt joint and is in sealing fit with the first butt joint through a first sealing sleeve.
Preferably, the low-pressure storage unit is provided with an air suction hole and a butt joint groove surrounding the air suction hole; the second annular plate of the second butt joint is sleeved with a second sealing sleeve, and the second annular plate of the second butt joint is installed in the butt joint groove of the low-pressure storage unit and is in sealing butt joint with the butt joint groove through the second sealing sleeve.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a refrigerator body defining a heat-insulating low-temperature storage compartment, a refrigerator door arranged on the refrigerator body, a low-pressure storage unit accommodated in the low-temperature storage compartment, a vacuum pump, an air suction pipeline connected with the vacuum pump, an air suction joint arranged on the refrigerator door and communicated with the air suction pipeline, and a connecting piece for connecting the air suction joint and the low-pressure storage unit; the top of the box door is provided with a containing part for containing the vacuum pump, and the connecting piece comprises a first butt joint used for being detachably connected with the air extraction joint, a second butt joint used for being detachably connected with the low-pressure storage unit, and a connecting pipe for connecting the first butt joint and the second butt joint; the arrangement of the invention makes an air extraction joint suitable for extracting air from low-pressure storage units at different positions, so that a user is not limited by the positions of the low-pressure storage units and the air extraction joint, thereby enlarging the fresh-keeping range, meeting various requirements of the user and improving the satisfaction of the user.
Drawings
Fig. 1 is a schematic view of the overall structure of a refrigerator according to the present invention;
FIG. 2 is a schematic view of a refrigerator according to an embodiment of the present invention, in which an air suction connector is connected to a low pressure storage unit through a connector;
FIG. 3 is a cross-sectional view showing an air extraction connector and a low pressure storage unit connected by a connector according to an embodiment of the present invention;
FIG. 4 is a schematic view showing a structure of a connecting member of an embodiment of the refrigerator according to the present invention;
fig. 5 is a cross-sectional view of a connection member of an embodiment of a refrigerator according to the present invention;
FIG. 6 is a cross-sectional view of a first docking connector and an air extraction connector of a refrigerator embodiment of the present invention;
FIG. 7 is a cross-sectional view illustrating a connection of a second docking connector of a connection member with a low pressure storage unit according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a refrigerator according to an embodiment of the present invention, in which two air extraction connectors are connected to a connector;
FIG. 9 is a schematic view of a refrigerator according to a second embodiment of the present invention;
FIG. 10 is a cross-sectional view of a second connector of the refrigerator embodiment of the present invention;
FIG. 11 is a cross-sectional view of a first docking connector and an air extraction connector of a second embodiment of the refrigerator of the present invention;
FIG. 12 is a schematic view of a refrigerator embodiment of the present invention in which three air extraction connectors are connected to a low pressure storage unit via a connector;
fig. 13 is a cross-sectional view of a third coupling member of the refrigerator embodiment of the present invention;
fig. 14 is a cross-sectional view illustrating a connection of a first docking connector and an air extraction connector of a third embodiment of the refrigerator according to the present invention.
In the above figures: a refrigerator 1; a case 11; a refrigerating chamber 12; an inner container 13; a low pressure storage unit 2; a door 3; a housing portion 31; a unidirectional ventilation unit 4; a column 40; an inner end 40a; an outer end 40b; an air suction hole 41; an air outlet 42; a floating column 43; a first baffle 43a; a second baffle 43b; a suction channel 44; a first shroud 45; a second shroud 46; a docking slot 47; an air extraction joint 5; an interface 50; a first annular plate 51; a first gland 52; a connecting member 6; a connecting pipe 7; a first butt joint 61; a second butt joint 62; an abutment plate 63; a second ring plate 64; a second gland 65; a first recess 66; a mounting cavity 67; a connection joint 68; a mounting groove 80; a second concave portion 69; a third ring plate 60; fitting grooves 90.
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.
Example 1
Referring to fig. 1 to 7, a refrigerator 1 defines a plurality of low temperature storage compartments 11 for storing food and the like. The box body 11 comprises a shell and an inner container 13, and a heat insulation layer is arranged between the inner container 13 and the shell; in the present embodiment, the low-temperature storage compartments are a refrigerating compartment 12 located at the upper portion and a freezing compartment located at the bottom portion, respectively. Each low-temperature storage compartment is provided with a respective door; the refrigerator compartment 12 of the present invention is provided with a door 3 for rotatably opening or closing the low-temperature storage compartment in a side-by-side manner. The refrigerator 1 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. 2-3, the box door 3 is provided with an air extracting device and an air extracting joint 5 communicated with the air extracting device; wherein, the air extractor is arranged at the top of the box door 3 where the air extracting joint 5 is arranged. The refrigerator 1 includes a low pressure storage unit 2 which can be maintained in a low pressure state, and a connection member 6 for connecting the suction connector 5 and the low pressure storage unit 2. Wherein the low pressure storage unit 2 is provided in the low temperature storage compartment. One end of the connecting piece 6 is used for being connected with the air extraction joint 5, and the other end is used for being connected with the low-pressure storage unit 2. Specifically, one end of the connecting piece 6 is detachably connected with the air extraction joint 5, and the other end of the connecting piece is detachably connected with the low-pressure storage unit 2; when vacuumizing, the air extraction joint 5 is connected with the low-pressure storage unit 2 through the connecting piece 6, and the air extraction device works to extract the air in the low-pressure storage unit 2, so that a low-pressure state is formed in the low-pressure storage unit 2. According to a preferred embodiment of the invention, at the end of the evacuation procedure, the pressure in the low-pressure reservoir unit 2 is between a normal atmospheric pressure and absolute vacuum. Since the air pressure in the low-pressure storage unit 2 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". When the connecting piece 6 is separated from the air extraction joint 5 and the low-pressure storage unit 2 in the non-vacuumizing state, the air extraction joint 5 is disconnected from the low-pressure storage unit 2 and kept relatively independent.
The top of the box door 3 is provided with a receiving portion 31. The air extracting device comprises a vacuum pump arranged in the accommodating part 31, an air extracting pipeline and an air exhausting pipeline which are connected with the vacuum pump; one end of the air extraction pipeline is communicated with the vacuum pump, and the other end of the air extraction pipeline is communicated with the air extraction joint 5 so as to be communicated with the low-pressure storage unit 2 when the air extraction joint 5 is connected with the low-pressure storage unit 2 through the connecting piece 6. Specifically, the air extraction pipeline extends from top to bottom along the box door 3 to the air extraction joint 5. In this embodiment, the exhaust duct may be provided to communicate with the external atmosphere of the refrigerator 1 to exhaust the air drawn out of the low pressure storage unit 2 to the outside of the refrigerator 1.
As shown in fig. 4, the low-pressure storage unit 2 is provided with a one-way ventilation unit 4; specifically, the one-way ventilation unit 4 includes a column 40 formed on the low pressure storage unit 2 and a suction hole 41 penetrating the column 40. Wherein the upright 40 has an inner end 40a located inside the low pressure reservoir unit 2 and an outer end 40b located outside the low pressure reservoir unit 2; wherein the air extraction hole 41 forms an air outlet 42 at the outer end 40b of the upright 40; a floating column 43 is arranged in the air suction hole 41, the radial dimension of the floating column 43 is smaller than that of the air suction hole 41, the floating column 43 and the upright column 40 jointly define an air suction channel 44, and the air suction channel 44 is always communicated with the inner cavity of the low-pressure storage unit 2; one end of the floating column 43 is provided with a second shutter 43b for cooperating with the outer end 40b to open or close the air outlet 42; a first shroud 45 positioned at the inner ring and a second shroud 46 positioned at the outer ring are provided around the outer end 40b of the column 40, the first shroud 45 and the second shroud 46 forming a mating groove 47.
Wherein, a first baffle 43a is disposed at one end of the floating column 43 near the inner end 40a, and a receiving groove for receiving the column 40 is formed between the first baffle 43a and the second baffle 43b; the first baffle 43a is adapted to cooperate with the inner end 40a of the upright 40; a vent is provided in the side wall of the inner end 40a of the column 40 to communicate the interior cavity of the low pressure reservoir unit 2 with the bleed passage 44.
As shown in fig. 5, the air extraction joint 5 is provided with an opposite joint 50, and the opposite joint 50 is communicated with an air extraction pipeline. The air extraction joint 5 is provided with a first annular plate 51 around the butt joint 50, and a first sealing sleeve 52 is sleeved on the first annular plate 51.
As shown in fig. 6 to 7, the connecting member 6 includes a flexible connecting tube 7, and a first butt joint 61 and a second butt joint 62 provided at opposite ends of the connecting tube 7; wherein the first docking connector 61 is adapted to cooperate with the suction connector 5 and the second docking connector 62 is adapted to cooperate with the low pressure storage unit 2. In this embodiment, the first butt joint 61 and the second butt joint 62 have the same structure; the first butt joint 61 will be described below as an example.
The first butt joint 61 includes a butt plate 63 and a second annular plate 64 disposed around the butt plate. Wherein, the second annular plate 64 of the second butt joint 62 is sleeved with a second sealing sleeve 65.
A first recess 66 is formed by recessing a partial region of the abutment plate 63 to a side away from the second annular plate 64; the first concave portion 66 is provided with a mounting cavity 67 which is provided with an opening at one end far away from the second annular plate 64; the installation cavity 67 is provided with a connecting joint 68 which communicates the installation cavity 67 with the first concave portion 66, and the connecting joint 68 and the cavity wall of the installation cavity 67 jointly define an installation groove 80. The flexible connecting pipe 7 is sleeved on the connecting joint 68 so as to be installed in the installation groove 80; the connecting joint 68 provided with the connecting piece 6 is vertically connected with the butt plate 63, and a linear air flow channel is formed in the connecting piece 6; in addition, the connection part of the flexible connecting pipe 7 and the butt joint is positioned in the mounting groove 80 so as to protect the connection position of the connecting pipe 7 and the butt joint and prevent the connecting pipe 7 and the butt joint from being exposed to the outside and being easily damaged by the action of external force.
As shown in fig. 5, when the first butt joint 61 is matched with the air extraction joint 5, the first ring plate 51 of the air extraction joint 5 is installed in the second ring plate 64 of the first butt joint 61 and is abutted against the butt joint plate 63, and the first sealing sleeve 52 is in sealing butt joint with the second ring plate 64 of the first butt joint 61 and the butt joint plate 63, so that the air extraction joint 5 and the connecting piece 6 are in sealing connection.
As shown in fig. 4, when the second butt joint 62 is matched with the low-pressure storage unit 2, the second ring plate 64 of the second butt joint 62 is installed in the butt groove 47 of the low-pressure storage unit 2 and is in sealing butt joint with the butt groove 47 through the second sealing sleeve 65, so that the sealing connection between the second butt joint 62 and the low-pressure storage unit 2 is realized, the air suction hole 41 on the low-pressure storage unit 2 is connected with the butt joint 50 on the air suction joint 5, and the inner cavity of the low-pressure storage unit 2 is communicated with the air suction pipeline when vacuum is pumped.
When the low-pressure storage unit 2 is pumped, negative pressure is generated on one side of the floating column 43 close to the pumping joint 5, the floating column 43 moves towards the direction close to the pumping joint 5 under the action of air pressure, the second baffle 43b is separated from the outer end 40b, and the air outlet 42 is opened; the air of the low-pressure storage unit 2 sequentially passes through the air suction channel 44, the air outlet 42, the connecting piece 6, the air suction joint 5, the air suction pipeline, the vacuum pump and the air exhaust pipeline; when the low-pressure storage unit 2 stops pumping, as the pressure intensity of the floating column 43 at the side close to the inner cavity of the low-pressure storage unit 2 is smaller than the pressure intensity of the floating column 43 at the side close to the pumping joint 5, the floating column 43 moves away from the pumping joint 5 under the action of air pressure, the second baffle 43b is in sealing fit with the outer end 40b, and the air outlet 42 is closed; at this time, the second docking connector 62 is separated from the low-pressure storage unit 2, and the first docking connector 61 is separated from the air extraction connector 5, so that the air extraction connector 5 and the low-pressure storage unit 2 can be disconnected.
In this embodiment, the air extraction connector 5 is disposed on the box door 3 in a reversible manner, and the position of the air extraction connector 5 is adjusted by turning over the air extraction connector 5, so as to ensure connectivity of the flexible connection pipe 7, and avoid bending deformation of the flexible connection pipe 7 to block the connectivity.
In this embodiment, when the low-pressure storage unit 2 located in the low-temperature storage compartment needs to be vacuumized, the air suction connector 5 located on the door 3 is connected with the low-pressure storage unit 2 located in the low-temperature storage compartment through the connecting piece 6; in the non-vacuumizing state, the connecting piece 6 is disassembled, and the air extraction joint 5 on the box door 3 and the low-pressure storage unit 2 in the low-temperature storage room are relatively independent and do not influence each other. The arrangement ensures that one air extraction joint 5 is suitable for extracting air from the low-pressure storage units 2 at different positions, so that a user is not limited by the positions of the low-pressure storage units 2 and the air extraction joints 5, the fresh-keeping range is enlarged, various requirements of the user are met, and the satisfaction of the user is improved.
Example two
The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the butt joint structure of this embodiment is different from that of the first embodiment.
Specifically, as shown in fig. 8 to 11, the first butt joint 61 includes a butt joint plate 63 and a second annular plate 64 provided around the butt joint plate 63. Wherein, the butt plate 63 is formed with a first concave portion 66 concave toward one side away from the second annular plate 64; in addition, the third ring plate 60 disposed concentrically with the second ring plate 64 is disposed around the first recess 66 on the butt plate 63, and the third ring plate 60, the second ring plate 64 and the butt plate 63 together define a fitting groove 90 for mounting the suction connector 5.
As shown in fig. 11, when the first butt joint 61 is matched with the air extraction joint 5, the first annular plate 51 of the air extraction joint 5 is installed in the matching groove 90 and abuts against the butt joint plate 63, and the first sealing sleeve 52 is in sealing butt joint with the matching groove 90, so that the sealing connection between the air extraction joint 5 and the connecting piece 6 is realized. The first sealing sleeve 52 is arranged in the matching groove 90, and the opposite sides of the first sealing sleeve 52 are acted by the second annular plate 64 and the third annular plate 60, so that the connection tightness of the air extraction joint 5 and the first butt joint 61 is effectively improved; while facilitating the mounting and positioning of the suction fitting 5 with the first docking fitting 61.
The first recess 66 is provided with a connection joint 68 in the circumferential direction around the central axis of the second annular plate 64, and the connection joint 68 is provided parallel to the abutment plate 63. Since the low pressure storage unit 2 is located in the low temperature storage compartment and the air extraction connector 5 is located on the door, the connection member 6 completes the transverse connection through the flexible connection tube 7 when the air extraction connector 5 is connected with the low pressure storage unit 2. The above connection joint 68 is parallel to the butt plate 63, so that bending of the flexible connection pipe 7 can be avoided, and connectivity of the flexible connection pipe 7 and effectiveness of vacuum pumping can be ensured. In addition, the connection tab 68 extends from the sidewall of the first recess 66 to the second ring plate 64; that is, in a plane projection parallel to the butt joint plate 63, the boundary between the first concave portion 66 and the connection joint 68 is projected within the boundary projection of the second annular plate 64, so that the occupied space of the first butt joint 61 is effectively reduced, and the thickness of the first butt joint 61 can be reduced.
When the air flow passes through the first butt joint 61, the air flow enters the first butt joint 61 through the connecting joint 68, sequentially passes through the first concave portion 66 and the second annular plate 64, and flows out from one end of the second annular plate 64 away from the butt joint plate 63; during the passage of the air flow through the first butt joint 61, the air flow is diverted from being parallel to the direction of the central axis of the second annular plate 64. I.e. the direction of the air flow changes when it passes the first docking head 61; during the air flow steering process, the propagation direction of the sound wave is changed, and reflection, interference and the like occur in the first butt joint 61, thereby reducing noise.
In this embodiment, the side wall of the first recess 66 is at least partially connected to the second ring plate 64; that is, the portion of the butt plate 63 close to the second annular plate 64 is recessed to a side away from the second annular plate 64 to form a first recessed portion 66; the edge of the first recess 66 at least partially coincides with the boundary projection of the second annular plate 64 on a planar projection parallel to the abutment plate 63; corresponding to the overlapping portion, the second ring plate 64 is in smooth transition connection with the side wall of the first recess 66. The third ring plate 60 is notched in the region corresponding to the connection of the first recess 66 to the second ring plate 64. The above arrangement enables the inner cavity volume of the first concave portion 66 to be increased on the basis of the reduction of the thickness of the first butt joint 61.
The second butt joint 62 in the present embodiment is the same in structure as the second butt joint 62 in the first embodiment; it should be understood that the second butt joint 62 on the connecting element 6 is not limited to the above arrangement, but may be configured as the first butt joint in the present embodiment or other configurations.
Example III
The principle of this embodiment is the same as that of the first embodiment, and the main difference is that the butt joint structure of this embodiment is different from that of the first embodiment.
Specifically, as shown in fig. 12 to 14, the first butt joint 61 includes a butt joint plate 63 and a second annular plate 64 provided around the butt joint plate 63. Wherein, the butt plate 63 is formed with a first concave portion 66 concave toward one side away from the second annular plate 64; the first concave portion 66 is formed with a second concave portion 69 concave toward a side away from the second annular plate 64; of the sections parallel to the second recess 69 and the first recess 66 of the butt plate 63, the cavity section of the second recess 69 is smaller than the cavity section of the first recess 66, and the cavity section of the first recess 66 is smaller than the inner ring section of the second ring plate 64. I.e. the air flow channel in the first butt joint is gradually enlarged along the air flow direction when vacuumizing. The second recess 69 is provided with a connection joint 68 in the circumferential direction around the central axis of the second annular plate 64, and the connection joint 68 is provided parallel to the butt plate 63. Since the low pressure storage unit 2 is located in the low temperature storage compartment and the air extraction connector 5 is located on the door, the connection member 6 completes the transverse connection through the flexible connection pipe 7 when the air extraction connector 5 is connected with the low pressure storage unit 2. The above connection joint 68 is provided parallel to the butt plate 63, and can avoid bending of the flexible connection pipe 7, and ensure connectivity of the flexible connection pipe 7 and effectiveness of evacuation. In addition, the connection tab 68 extends from the side wall of the second recess 69 to the side wall of the first recess 66; that is, in a plane projection parallel to the butt plate 63, the boundary between the second recess 69 and the connection joint 68 is projected within the boundary projection range of the first recess 66, so that the occupied space of the first butt joint 61 can be effectively reduced, and the thickness of the first butt joint 61 can be reduced.
As shown in fig. 14, when the first butt joint 61 is matched with the air extraction joint 5, the first annular plate 51 of the air extraction joint 5 is installed in the second annular plate 64 and is abutted against the butt joint plate 63, and the first sealing sleeve 52 is in sealing butt joint with the second annular plate 64 and the butt joint plate 63 so as to realize sealing connection between the air extraction joint 5 and the connecting piece 6.
When the air flow passes through the first butt joint 61, the air flow connection joint 68 enters the first butt joint 61, sequentially passes through the second concave portion 69, the first concave portion 66 and the second annular plate 64, and flows out from one end of the second annular plate 64 away from the butt joint plate 63; during the passage of the air flow through the first abutment 61, the air flow channel is gradually enlarged and the air flow is diverted from being parallel to the abutment plate 63 in a direction along the centre axis of the second annular plate 64. Namely, when the air flow passes through the first butt joint 61, the air flow channel is gradually increased, and the air flow direction is changed, so that on one hand, the noise caused by the flow speed reduction of the air flow can be effectively relieved; on the other hand, during the airflow turning process, the propagation direction of the sound wave is changed, and reflection, interference and other phenomena occur in the first butt joint 61, so that the noise is efficiently reduced.
The second butt joint 62 in the present embodiment is the same in structure as the second butt joint 62 in the first embodiment; it should be understood that, not limited to the above arrangement, the second butt joint 62 on the connecting member 6 may also be provided as the first butt joint 61 in the present embodiment; at this time, the air flow channel is enlarged first in the process of entering the second butt joint 62 from the low pressure storage unit 2, then is reduced again when passing through the second butt joint 62, and is turned from the direction along the central axis of the second annular plate 64 to the direction parallel to the butt joint 63, so that the sound wave is reflected, interfered and the like in the second butt joint 61, thereby efficiently reducing noise.
In the invention, when the low-pressure storage unit 2 positioned in the low-temperature storage room is vacuumized, the air suction joint 5 positioned on the box door 3 is connected with the low-pressure storage unit 2 positioned in the low-temperature storage room through the connecting piece 6; in the non-vacuumizing state, the connecting piece 6 is disassembled, and the air extraction joint 5 on the box door 3 and the low-pressure storage unit 2 in the low-temperature storage room are relatively independent and do not influence each other. The arrangement ensures that one air extraction joint 5 is suitable for extracting air from the low-pressure storage units 2 at different positions, so that a user is not limited by the positions of the low-pressure storage units 2 and the air extraction joints 5, the fresh-keeping range is enlarged, various requirements of the user are met, and the satisfaction of the user 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 arranged on the box body to open or close the low-temperature storage compartment; the top of the box door is provided with a containing part;
the low-pressure storage unit is accommodated in 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 positioned in the accommodating part and an air extracting pipeline connected with the vacuum pump;
the air extraction joint is arranged on the box door and is communicated with the air extraction pipeline;
a connector, comprising:
the first butt joint is used for being detachably connected with the air extraction joint;
the second butt joint is used for being detachably connected with the low-pressure storage unit;
one end of the connecting pipe is connected with the first butt joint, and the other end of the connecting pipe is connected with the second butt joint;
when vacuumizing, the first butt joint is connected with the air extraction joint, the second butt joint is connected with the low-pressure storage unit, the vacuum pump works, and the gas in the low-pressure storage unit sequentially passes through the second butt joint, the connecting pipe, the first butt joint, the air extraction pipeline and the vacuum pump;
the second butt joint comprises a butt joint plate, a second annular plate arranged around the butt joint plate and a connecting joint used for being connected with the connecting pipe; an open mounting cavity is formed at one end of the butt joint plate far away from the second annular plate; the connecting joint is arranged in the mounting cavity, and the connecting joint and the cavity wall of the mounting cavity jointly define a mounting groove; one end of the connecting pipe is sleeved on the connecting joint, and the connecting pipe is installed in the installation groove.
2. The refrigerator of claim 1, wherein: the first butt joint and the second butt joint comprise butt joint plates, second annular plates arranged around the butt joint plates and connecting joints used for being connected with the connecting pipes;
the partial area of the butt plate is recessed to one side far away from the second annular plate to form a first recessed part; the connecting joint is communicated with two opposite sides of the first concave part.
3. The refrigerator of claim 2, wherein: an installation cavity with an opening is formed in one end, far away from the second annular plate, of the first concave part; the connecting joint is arranged in the mounting cavity, the connecting joint and the cavity wall of the mounting cavity jointly define a mounting groove, and the connecting joint is sleeved on the connecting joint and is arranged in the mounting groove.
4. The refrigerator of claim 2, wherein: and a third annular plate concentrically arranged with the second annular plate is arranged on the butt joint plate around the first concave part, and the third annular plate, the second annular plate and the butt joint plate jointly define a matching groove.
5. The refrigerator of claim 4, wherein: the connecting joint is arranged on the first concave part and positioned in the circumferential direction of the first concave part around the central shaft of the second annular plate.
6. The refrigerator of claim 2, wherein: a second concave part which is concave towards one side far away from the second annular plate is formed on the first concave part;
the cross section of the second concave part and the first concave part which are parallel to the butt plate is smaller than that of the first concave part, and the cross section of the first concave part is smaller than that of the inner ring of the second ring plate;
wherein, the connection joint is arranged on the second concave part.
7. The refrigerator of claim 6, wherein: the connecting joint is arranged on the circumference of the second concave part surrounding the central shaft of the second annular plate.
8. The refrigerator according to claim 5 or 7, wherein: the connection joint is arranged parallel to the butt plate.
9. The refrigerator according to any one of claims 2 to 7, wherein: the air extraction connector is provided with an abutting joint which is communicated with the air extraction pipeline; the air extraction joint is provided with a first annular plate around the butt joint opening, and a first sealing sleeve is sleeved on the first annular plate; the first annular plate is arranged in the second annular plate of the first butt joint and is in sealing fit with the first butt joint through a first sealing sleeve.
10. The refrigerator according to any one of claims 2 to 7, wherein: the low-pressure storage unit is provided with an air suction hole and a butt joint groove surrounding the air suction hole; the second annular plate of the second butt joint is sleeved with a second sealing sleeve, and the second annular plate of the second butt joint is installed in the butt joint groove of the low-pressure storage unit and is in sealing butt joint with the butt joint groove through the second sealing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914640.9A CN114136039B (en) | 2020-09-03 | 2020-09-03 | Refrigerator with a refrigerator body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010914640.9A CN114136039B (en) | 2020-09-03 | 2020-09-03 | Refrigerator with a refrigerator body |
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| CN114136039A CN114136039A (en) | 2022-03-04 |
| CN114136039B true CN114136039B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010914640.9A Active CN114136039B (en) | 2020-09-03 | 2020-09-03 | Refrigerator with a refrigerator body |
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| CN104501497A (en) * | 2014-11-28 | 2015-04-08 | 河南新飞电器有限公司 | Refrigerator with external vacuum freshness retaining device |
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| CN111578588A (en) * | 2020-05-08 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN111578585A (en) * | 2020-04-26 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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2020
- 2020-09-03 CN CN202010914640.9A patent/CN114136039B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3570809A (en) * | 1969-06-05 | 1971-03-16 | Clarkson Ind Inc | Silent hose coupling |
| CN201206925Y (en) * | 2008-04-22 | 2009-03-11 | 博西华电器（江苏）有限公司 | Refrigerator externally connecting with vacuum fresh-keeping container |
| CN101788220A (en) * | 2009-01-23 | 2010-07-28 | 博西华家用电器有限公司 | Refrigeration appliance, container for refrigeration appliance and air tightness detecting method |
| CN104501497A (en) * | 2014-11-28 | 2015-04-08 | 河南新飞电器有限公司 | Refrigerator with external vacuum freshness retaining device |
| WO2018099458A1 (en) * | 2016-12-02 | 2018-06-07 | 青岛海尔股份有限公司 | Air extracting pump assembly and refrigerating and freezing device |
| CN111578585A (en) * | 2020-04-26 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
| CN111578588A (en) * | 2020-05-08 | 2020-08-25 | 海信（山东）冰箱有限公司 | Refrigerator with a door |
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| CN114136039A (en) | 2022-03-04 |
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Address after: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant after: Hisense refrigerator Co.,Ltd. Address before: 266736 No. 8 Haixin Avenue, Nancun Town, Pingdu City, Qingdao City, Shandong Province Applicant before: HISENSE (SHANDONG) REFRIGERATOR Co.,Ltd. |
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