CN114061216B - Refrigerator and vacuumizing control method thereof - Google Patents
Refrigerator and vacuumizing control method thereof Download PDFInfo
- Publication number
- CN114061216B CN114061216B CN202010757175.2A CN202010757175A CN114061216B CN 114061216 B CN114061216 B CN 114061216B CN 202010757175 A CN202010757175 A CN 202010757175A CN 114061216 B CN114061216 B CN 114061216B
- Authority
- CN
- China
- Prior art keywords
- air
- pressure
- low
- pipe
- branch pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/043—Treating air flowing to refrigeration compartments by creating a vacuum in a storage compartment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a refrigerator, which comprises a refrigerator body, a refrigerator door, a low-pressure storage unit, an air extraction joint, an air extraction device and a three-way joint, wherein the top of the refrigerator door is provided with a containing part; the air extracting device comprises a vacuum pump, an exhaust pipe and an air inlet pipe which are arranged in the accommodating part; the air suction connector is arranged on the box door in a turnover way and is communicated with the air inlet pipe through a first pipeline; the accommodating part is internally provided with a pressure relief unit adjacent to the vacuum pump; the three-way joint comprises a first branch pipe and a second branch pipe which are communicated with each other; one end of the first branch pipe is communicated with the air inlet pipe, the other end of the first branch pipe is communicated with the first pipeline, and the second branch pipe is communicated with the pressure relief unit; according to the invention, the pressure relief unit balances the internal and external air pressure of the first pipeline after vacuumizing is finished, so that a user can conveniently turn over the air extraction joint to separate the air extraction joint from the low-pressure storage unit, and the user experience is improved; on the other hand, the pressure relief unit and the vacuum pump are arranged in the accommodating part, the second branch pipe is made of rubber materials, the space of the accommodating part is effectively utilized, and the pressure relief unit is simple in structure and compact in assembly.
Description
Technical Field
The invention belongs to the technical field of household refrigerators, and particularly relates to a refrigerator vacuumizing control method.
Background
At present, the consumer has improved quality requirements for fresh foods, and new requirements are also put on refrigerator configuration to meet the consumer demands, so that the fresh foods stored in the refrigerator are expected to have longer storage period, the freshness of the foods is ensured, and the loss of nutrient components is prevented.
In view of this, the present invention has been proposed.
Disclosure of Invention
The invention provides a refrigerator aiming at the technical problems.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a refrigerator, comprising:
a housing defining an insulated low temperature storage compartment;
the box door is rotatably arranged on the box body so as to open or close the low-temperature storage compartment; the top of the box door is provided with a containing part;
the low-pressure storage unit is arranged on one side of the refrigerator door close to the low-temperature storage room, and can be evacuated to form air pressure lower than the atmospheric pressure outside the refrigerator so as to be beneficial to food preservation;
the air extracting device comprises a vacuum pump arranged in the accommodating part, an exhaust pipe and an air inlet pipe, wherein the exhaust pipe and the air inlet pipe are connected with the vacuum pump;
the air suction connector is communicated with the air inlet pipe through a first pipeline; the air extraction joint can be arranged on the box door in a turnover way so as to be connected with or separated from the low-pressure storage unit;
the pressure relief unit is arranged in the accommodating part and is positioned at one end of the vacuum pump close to the air inlet pipe;
a three-way joint including a first branch pipe and a second branch pipe of a rubber material which are communicated with each other; one end of the first branch pipe is communicated with the air inlet pipe, the other end of the first branch pipe is communicated with the first pipeline, and the second branch pipe is communicated with the pressure relief unit;
the air extraction joint is connected with the low-pressure storage unit, the vacuum pump works, and the air in the low-pressure storage unit sequentially passes through the air extraction joint, the first pipeline, the air inlet pipe, the vacuum pump and the air outlet pipe; after the vacuumizing is finished, the pressure relief unit is opened, and gas enters the first pipeline.
Preferably, a partition plate corresponding to the first branch pipe is arranged on the bottom wall of the accommodating part, and the partition plate divides one end of the accommodating part, which is close to the air inlet pipe, into a first subsection and a second subsection;
the pressure relief unit is arranged in the first subsection; the junction of the second branch pipe and the first branch pipe is positioned at one side of the first branch pipe, which is close to the second branch pipe.
Preferably, the pressure relief unit comprises a pressure relief piece, and the pressure relief piece comprises a connecting pipe communicated with a second branch pipe on the three-way joint and a vent pipe communicated with the atmosphere; and the connecting pipe and the vent pipe are blocked or communicated by changing the switch state of the pressure release piece.
Preferably, the pressure release piece is sleeved with a vibration damping sleeve, and the vibration damping sleeve is abutted with the first subsection.
Preferably, the three-way joint is formed by compression molding.
Preferably, the low-pressure storage unit is provided with an extraction opening communicated with the inner cavity of the low-pressure storage unit; the air suction device is characterized in that a one-way ventilation unit is arranged in the air suction opening, so that the air suction opening is opened when the air suction device is used for sucking air, and the air suction opening is sealed after the air suction is finished.
Preferably, the air extraction connector is provided with a butt joint port communicated with the first pipeline, and the butt joint port is used for being in butt joint with an air extraction port on the low-pressure storage unit so as to be communicated with an inner cavity of the low-pressure storage unit when vacuumizing;
when vacuumizing, the vacuum pump works, and the gas in the low-pressure storage unit sequentially passes through the extraction opening, the opposite joint, the first pipeline, the air inlet pipe, the vacuum pump and the exhaust pipe.
Preferably, the low pressure storage unit is detachably connected to the door.
Preferably, the box door is provided with an air extraction key for starting the vacuumizing operation.
The vacuum-pumping control method of the refrigerator is characterized in that the refrigerator is provided with a control unit; the method for controlling the vacuumizing of the refrigerator comprises the following steps of:
determining that the vacuumizing condition is met;
the control unit controls the air extractor to vacuumize;
and when the vacuumizing is finished, the control unit controls the pressure relief unit to be opened, and gas enters the air extraction pipeline.
Compared with the prior art, the invention has the advantages and positive effects that:
the invention provides a refrigerator, which comprises a refrigerator body, a refrigerator door, a low-pressure storage unit, an air extraction joint, an air extraction device and a three-way joint, wherein the top of the refrigerator door is provided with a containing part; the air extracting device comprises a vacuum pump, an exhaust pipe and an air inlet pipe which are arranged in the accommodating part; the air suction connector is arranged on the box door in a turnover way and is communicated with the air inlet pipe through a first pipeline; the accommodating part is internally provided with a pressure relief unit adjacent to the vacuum pump; the three-way joint comprises a first branch pipe and a second branch pipe which are communicated with each other; one end of the first branch pipe is communicated with the air inlet pipe, the other end of the first branch pipe is communicated with the first pipeline, and the second branch pipe is communicated with the pressure relief unit; according to the invention, the pressure relief unit balances the internal and external air pressure of the first pipeline after vacuumizing is finished, so that a user can conveniently turn over the air extraction joint to separate the air extraction joint from the low-pressure storage unit, and the user experience is improved; on the other hand, the pressure relief unit and the vacuum pump are arranged in the accommodating part, the second branch pipe is made of rubber materials, the space of the accommodating part is effectively utilized, and the pressure relief unit is simple in structure and compact in assembly.
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 showing a structure of a refrigerator according to the present invention in a state that an air suction connector is separated from a low pressure storage unit;
FIG. 3 is a schematic view showing the connection state of the air extraction connector and the low pressure storage unit of the refrigerator according to the present invention;
FIG. 4 is a schematic diagram of a connection structure of an air extraction pipeline and an air extraction joint of the refrigerator according to the present invention;
FIG. 5 is a schematic view showing the top structure of a refrigerator door according to the present invention;
FIG. 6 is a schematic diagram of an assembled structure of a vacuum pump, an air extraction pipeline and a three-way joint of the refrigerator of the invention;
FIG. 7 is a schematic diagram of an assembled structure of a vacuum pump, an air extraction pipeline and a three-way joint of the refrigerator according to another view angle;
FIG. 8 is a schematic diagram showing the relative positions of a vacuum pump, a three-way joint and a pressure relief unit of the refrigerator according to the present invention;
FIG. 9 is a schematic diagram showing an assembly structure of a vacuum pump, a three-way joint and a pressure relief unit of the refrigerator according to the present invention;
FIG. 10 is a schematic diagram of the assembly structure of the vacuum pump, the three-way joint, the pressure relief unit and the first pipeline of the refrigerator according to the present invention;
FIG. 11 is a schematic diagram of an assembled structure of a vacuum pump, a three-way joint, a pressure relief unit and a first pipeline of the refrigerator according to the present invention at another view angle;
fig. 12 is a schematic structural view of a three-way joint of the refrigerator of the present invention;
FIG. 13 is a schematic view showing an assembled structure of a three-way joint and a first pipeline of the refrigerator according to the present invention;
FIG. 14 is a schematic view showing a part of the structure of an air extraction joint of the refrigerator according to the present invention;
FIG. 15 is another schematic view of the air extraction joint of the refrigerator of the present invention;
fig. 16 is a partial structural schematic view of a low pressure storage unit of the refrigerator of the present invention;
fig. 17 is another structural schematic view of the low pressure storage unit of the refrigerator of the present invention;
fig. 18 is a timing diagram illustrating a method of controlling vacuum pumping of a refrigerator according to the present invention.
In the above figures: a refrigerator 1; a case 2; a low pressure storage unit 3; an extraction opening 3a; a vacuum pump 4; an elastic sleeve 5; an air extraction joint 6; an opposite interface 6a; a pressure relief unit 7; a pressure release member 71; damping sleeve 72; a connection pipe 71a; a vent pipe 71b; an air extraction key 8; a refrigerating chamber 9; a door 10; a housing portion 10a; a first subsection 10b; a second section 10c; an intake pipe 11; an exhaust pipe 12; a first pipe 13; a one-way ventilation unit 15; a three-way joint 16; a first branch pipe 16a; a second branch pipe 16b; a partition plate 17.
Detailed Description
The present invention will be further described with reference to specific examples so that those skilled in the art may better understand the present invention and practice it, but the scope of the present invention is not limited to the scope described in the specific embodiments. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.
It should be noted that the description of "first", "second", etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1 to 17, a refrigerator 1 includes a cabinet 2 defining a plurality of insulated low temperature storage compartments to store food and the like. Specifically, the low-temperature storage compartments are a refrigerating compartment and a freezing compartment respectively; wherein the refrigerating chamber is located at the upper part and the freezing chamber is located at the bottom part. Each low-temperature storage room is provided with a respective box door; in the present invention, the refrigerating chamber 9 is provided with a side-by-side type door 10. 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 to 4, the low pressure storage unit 3, the air extractor and the air extraction connector 6 are provided on the box door 10. Specifically, the low pressure storage unit 3 is detachably provided to the door 10, and can be maintained in a low pressure state. The air extractor is arranged at the top of the box door 10, and the air extractor and the low-pressure storage unit 3 are positioned on the same box door 10; the pumping device is used for pumping gas from the low-pressure storage unit 3 to form a low-pressure state in the low-pressure storage unit 3. The air extraction joint 6 is arranged on the box door 10 in a turnover way, and the air extraction joint 6 is positioned on one side of the box door 10 close to the low-pressure storage unit 3; the suction connection 6 is connected to or disconnected from the low pressure storage unit 3 by turning the suction connection 6 over.
When the low-pressure storage unit 3 is connected with the air extraction joint 6 and the air extraction device is started, the air in the low-pressure storage unit 3 is extracted, and the low-pressure storage unit 3 is in a low-pressure state. According to a preferred embodiment of the invention, at the end of the evacuation procedure, the pressure in the low-pressure reservoir unit 3 is between a normal atmospheric pressure and absolute vacuum. Since the air pressure in the low-pressure storage unit 3 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".
Referring to fig. 4, as shown in fig. 5 to 13, a receiving portion 10a for receiving the vacuum pump 4 is provided at the top of the cabinet door 10. The air extracting device comprises a vacuum pump 4 and an elastic sleeve 5; the elastic sleeve 5 is sleeved outside the vacuum pump 4 and is abutted against the accommodating part 10a at the top of the box door 10 so as to reduce vibration and noise. The vacuum pump 4 is provided with an exhaust pipe 12 and an exhaust pipeline; the pumping pipeline comprises an air inlet pipe 11 and a first pipeline 13; wherein, a first pipeline 13 has one end communicated with the air inlet pipe 11 and the other end communicated with the air extraction joint 6, so as to be used for being communicated with the low-pressure storage unit 3 when the air extraction joint 6 is connected with the low-pressure storage unit 3. Specifically, referring to fig. 4, the first pipe 13 extends from the top down along the door 10 to the suction connector 6. The pressure relief unit 7 communicated with the pumping pipeline is arranged on the pumping pipeline and is used for enabling external air to enter the pumping pipeline of the pumping device after the vacuumizing is finished, so that the internal and external air pressure of the pumping pipeline of the pumping device is balanced, the internal and external pressure difference of the pumping joint 6 is reduced, and a user can conveniently overturn the pumping joint 6 to separate the pumping joint from the low-pressure storage unit 3.
As shown in fig. 5 to 13, in the present embodiment, the pressure relief unit 7 is installed in the accommodating portion 10a and is disposed at a connection portion between the intake pipe 11 and the first pipeline 13. The pressure relief unit 7, the air inlet pipe 11 and the first pipeline 13 are connected through a three-way joint 16. Specifically, the pressure relief unit 7 includes a pressure relief piece 71, and a vibration damping sleeve 72 is sleeved outside the pressure relief piece 71; the damper sleeve 72 is abutted against the housing 10a to damp vibration and reduce noise. The pressure release member 71 includes a connection pipe 71a communicating with the suction line and a ventilation pipe 71b communicating with the outside atmosphere. By controlling the on-off state of the pressure release member 71, blocking or communication between the connection pipe 71a and the ventilation pipe 71b can be achieved, thereby changing the communication state between the air extraction pipe and the atmosphere to balance the air pressure inside and outside the air extraction pipe.
As shown in fig. 12, the three-way joint 16 includes a first branch pipe 16a, a second branch pipe 16b which are communicated with each other; wherein at least the second branch pipe 16b is made of rubber material, i.e. the second branch pipe 16b is a rubber pipe; specifically, the second branch pipe 16b is made of a silicone material in this embodiment, and the three-way joint 16 is formed by compression molding. One end of the first branch pipe 16a communicates with the intake pipe 11, the other end communicates with the first pipe 13, and the second branch pipe 16b communicates with the connection pipe 71a of the pressure relief unit 7. The pressure relief unit 7 is arranged in the accommodating part 10a and is positioned at one end of the vacuum pump 5 close to the water inlet pipe 11, and the pressure relief unit 7 is arranged adjacent to the air exhaust pipeline. In this embodiment, the bottom wall of the accommodating portion 10a is provided with a partition plate 17, and the partition plate 17 is positioned corresponding to the first branch pipe 16a to partition one end of the accommodating portion 10a near the air intake pipe 11 into a first subsection 10b and a second subsection 10c; that is, the first section 10b and the second section 10c are separated on opposite sides of the first branch pipe 16 a.
The pressure relief unit 7 is installed in the first subsection 10b, and the connection between the second branch pipe 16b and the first branch pipe 16a on the three-way joint 16 is located at one side of the first branch pipe 16a close to the second subsection 10c, that is, the second branch pipe 16b in a natural state is located in the second subsection 10 c. The second branch pipe 16b is bent at the time of installation to be connected to the connection pipe 71a of the pressure relief unit 7. The above arrangement can fully utilize the space of the accommodating part 10a, and has simple structure, compact assembly and convenient connection.
Specifically, the installation method of the air extractor and the pressure relief unit is as follows: first, as shown in fig. 13, one end of the first pipe 13 near the accommodating portion 10a is connected to one end of the first branch pipe 16a; next, as shown in fig. 5 to 7, the vacuum pump 4 is installed in the accommodating portion 10a, and the other end of the first branch pipe 16a is connected to the intake pipe 11; further, as shown in fig. 8 to 11, the pressure relief unit 7 is installed, and the second branch pipe 16b is bent so that the second branch pipe 16b communicates with the connection pipe 71a on the pressure relief unit 7. The above completes the installation of the air extraction device and the pressure relief unit 7.
As shown in fig. 14 to 15, the air extraction joint 6 is provided with an interface 6a, and the interface 6a is communicated with the first pipeline 13.
As shown in fig. 16 to 17, the low-pressure storage unit 3 is provided with an extraction opening 3a. When the air extraction joint 6 is turned over and connected with the low-pressure storage unit 3, the air extraction opening 3a is butted with the butt joint opening 6a on the air extraction joint 6, so that the inner cavity of the low-pressure storage unit 3 is communicated with the air extraction pipeline when vacuumizing.
Specifically, a unidirectional ventilation unit 15 is arranged in the air extraction opening 3a, the unidirectional ventilation unit 15 opens the air extraction opening 3a when the air extraction device extracts air, and the unidirectional ventilation unit 15 seals the air extraction opening 3a after the air extraction is finished. Specifically, the one-way ventilation unit 15 may include a rubber column installed in the suction port 3a; when the pressure in the low-pressure storage unit 3 is higher than the pressure of the rubber column on the side close to the air extraction joint, the rubber column moves towards the side close to the air extraction joint 6, and the air extraction opening 3a is opened; when the pressure in the low-pressure storage unit 3 is smaller than the pressure of the rubber column at the side close to the air extraction joint 6, the rubber column moves to the side close to the inner cavity of the low-pressure storage unit 3, and the air extraction opening 3a is sealed. The suction port 3a is opened or sealed under the pressure difference.
In this embodiment, the air extraction opening 3a is disposed at the top of the low-pressure storage unit 3, the air extraction connector 6 is disposed above the low-pressure storage unit 3, and when the air extraction connector 6 is in butt joint with the low-pressure storage unit 3, the butt joint opening 6a on the air extraction connector 6 corresponds to the air extraction opening 3a.
The vacuum pump 4 works, negative pressure is generated on one side of the unidirectional ventilation unit 15 close to the air suction joint 6, the air suction opening 3a is opened, the inner cavity of the low-pressure storage unit 3 is communicated with the first pipeline 13, and the air in the low-pressure storage unit 3 sequentially passes through the air suction opening 3a, the butt joint 6a, the first pipeline 13, the air inlet pipe 11, the vacuum pump 4 and the air exhaust pipe 12. In this embodiment, the exhaust duct 12 may be provided to communicate with the external atmosphere of the refrigerator to exhaust the air drawn out of the low pressure storage unit 3 to the outside of the refrigerator 1.
When the vacuum pump 4 stops working, the pressure of the one-way ventilation unit 15 at the side close to the air suction joint 6 is larger than the pressure of the one-way ventilation unit at the side close to the inner cavity of the low-pressure storage unit 3, the air suction port 3a of the low-pressure storage unit 3 is closed, and the low-pressure storage unit 3 is in a low-pressure sealing state. At this time, since the air extraction connector 6 is still in sealing connection with the air extraction opening 3a, the pressure in the first pipeline 13 is smaller than the external atmospheric pressure, and if the air extraction connector 6 is directly turned over manually to separate from the low-pressure storage unit 3, a user needs to apply a larger force; the pressure relief unit 7 communicated with the first pipeline 13 is arranged in the invention, after vacuumizing is finished, the pressure relief unit 7 is opened, gas enters the first pipeline 13, so that the pressure inside and outside the first pipeline 13 is balanced, and a user can conveniently turn over the air extraction joint 6 to separate the air extraction joint from the low-pressure storage unit 3.
In this embodiment, as shown in fig. 3, the box door 10 is provided with an air extraction button 8 for opening the vacuum operation. Specifically, a vacuumizing time threshold value can be set, and vacuumizing is finished when vacuumizing reaches a preset vacuumizing time threshold value. Then, the pressure relief unit 7 is opened to allow the gas to enter the pumping pipeline of the pumping device, so that the internal and external pressures of the pipeline are balanced, and the user can conveniently turn over the pumping joint 6 to separate the pumping joint from the low-pressure storage unit 3.
It should be understood that the vacuum-pumping on and off mode is not limited to the above description; a pressure detection unit may also be provided on the low pressure storage unit 3 to monitor the pressure in the low pressure storage unit 3 in real time; and the vacuumizing operation is started through the pressure signal.
The refrigerator 1 is provided with a control unit for controlling the working conditions of the air extracting device and the pressure relief unit 7 so as to realize automatic control of vacuumizing the low-pressure storage unit 3. Namely, the control unit controls the air extractor to vacuumize the low-pressure storage unit 3, and controls the pressure relief unit 7 to balance the internal and external air pressure of the air extraction pipeline after the vacuumizing is finished.
In this embodiment, a display unit is provided on a side of the door 10 (or other display terminal such as a mobile phone) away from the storage compartment to display the vacuum condition in the low pressure storage unit 3. Specifically, the target vacuum degree of the low-pressure storage unit 3 is set to be-20 Kpa, the vacuumizing operation is started by the vacuumizing button 8 or the pressure signal, the vacuumizing condition is displayed on the display unit in real time, and the vacuum degree is displayed to stop from 0Kpa to-10 Kpa to-20 Kpa.
In addition, a plurality of target vacuum degree gears are set; for example, two target vacuum levels-20 Kpa, -10pa are set. The user can preset the required target vacuum degree gear; for example, the preset value is-10 Kpa for storing fruits and vegetables, and the preset value is-20 Kpa for storing meat and dried goods; then, when the vacuumizing operation is executed, the control logic is the same as that above. The vacuum degree in the low-pressure storage unit is visualized to a user through the arrangement, and the user can conduct specific target vacuum degree arrangement according to the type of the stored objects in the low-pressure storage unit, so that the user can conduct differential vacuumizing.
Specifically, the air extraction key 8 or the pressure detection unit can be used as a trigger unit for vacuumizing control of the refrigerator; the refrigerator can also be provided with a timing unit, namely, the timing unit or the pressure detection unit is used as a monitoring unit for monitoring the vacuumizing process during the vacuumizing control of the refrigerator. The monitoring unit monitors whether the condition of stopping vacuumizing is reached, and when the condition reaches the preset condition, the vacuumizing is stopped, and the monitoring unit feeds back a vacuumizing ending signal to the control unit. Specifically, when the monitoring unit is designed as a timing unit, the vacuum pump 4 can be set to stop working when the working time of the vacuum pump 4 reaches a preset vacuumizing time threshold value, and a vacuumizing signal is fed back to the control unit by the timing unit. The monitoring unit is set as a pressure detection unit, and when the pressure detection unit detects that the air pressure in the low-pressure storage unit 3 reaches a preset end air pressure threshold value, the vacuum pump 4 stops working, and a vacuum pumping signal is fed back to the control unit by the pressure detection unit.
It should be noted that, the pressure detecting unit 14 may be configured to always monitor the air pressure in the low-pressure storage unit 3, so as to use the pressure signal as a trigger condition for starting or ending the vacuumizing; in addition, the pressure detecting unit 14 may be configured to be capable of detecting the air pressure of the low-pressure storage unit 3 only during the evacuation process, as in fig. 11, the pressure detecting unit 14 is in communication with the air extraction line of the air extraction device, and after the evacuation is completed, the pressure detecting unit is disconnected from the low-pressure storage unit 3, so that the air pressure in the low-pressure storage unit 3 cannot be effectively detected, and therefore, in this configuration, only the pressure signal is used as a trigger condition for ending the evacuation, and is not suitable as a trigger condition for opening the evacuation. In the concrete design, the control logic is limited according to the actual setting.
A specific method for controlling the vacuum pumping of a refrigerator, as shown in fig. 18, includes the following steps:
s1: determining that the vacuumizing condition is met;
specifically, the air extraction connector 6 is in butt joint with the low-pressure storage unit 3, and the user triggers the vacuumizing operation through the air extraction key 8. The air suction connector 6 may be connected with the low-pressure storage unit 3 in a butt joint manner, and the pressure detection unit detects that the air pressure in the low-pressure storage unit 3 reaches a preset opening air pressure threshold.
S2: the control unit controls the vacuum pump 4 to vacuumize, and the monitoring unit monitors the vacuumized state;
specifically, the monitoring unit monitors whether the condition of stopping vacuumizing is reached, and when the condition reaches a preset condition, the vacuumizing is stopped, and the monitoring unit feeds back a vacuumizing ending signal to the control unit.
S3: and when the vacuumizing is finished, the control unit controls the pressure relief unit 7 to be opened, and gas enters the air extraction pipeline to balance the internal and external air pressure of the air extraction pipeline.
The control method of the refrigerator vacuumizing can be used for decompressing the air suction pipeline of the air suction device at the first time when the vacuumizing is finished, so that a user can conveniently overturn the air suction connector 6 to separate the air suction connector from the low-pressure storage unit 3.
In the invention, the pressure relief unit 7 and the vacuum pump 4 are both arranged in the accommodating part 10a at the top of the box door 10, and the connecting air inlet pipe 11, the first pipeline 13 and the pressure relief unit 7 are communicated through the three-way joint 16, wherein the second branch pipe 16b connected with the pressure relief unit 7 through the three-way joint 16 is made of rubber material, so that the pressure relief unit 7 can be communicated through bending during installation. The three-way connector can fully utilize the space of the accommodating part 10a, and has the advantages of simple structure, compact assembly and convenient connection.
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 (8)
1. A refrigerator, characterized in that it comprises:
a housing defining an insulated low temperature storage compartment;
the box door is rotatably arranged on the box body so as to open or close the low-temperature storage compartment; the top of the box door is provided with a containing part;
the low-pressure storage unit is arranged on one side of the refrigerator door close to the low-temperature storage room, and can be evacuated to form air pressure lower than the atmospheric pressure outside the refrigerator so as to be beneficial to food preservation;
the air extracting device comprises a vacuum pump arranged in the accommodating part, an exhaust pipe and an air inlet pipe, wherein the exhaust pipe and the air inlet pipe are connected with the vacuum pump;
the air suction connector is communicated with the air inlet pipe through a first pipeline; the air extraction joint can be arranged on the box door in a turnover way so as to be connected with or separated from the low-pressure storage unit;
the pressure relief unit is arranged in the accommodating part and is positioned at one end of the vacuum pump close to the air inlet pipe; the pressure relief unit comprises a connecting pipe and a vent pipe communicated with the outside atmosphere;
a three-way joint including a first branch pipe and a second branch pipe of a rubber material which are communicated with each other; one end of the first branch pipe is communicated with the air inlet pipe, the other end of the first branch pipe is communicated with the first pipeline, and the second branch pipe is communicated with a connecting pipe of the pressure relief unit;
a partition plate corresponding to the first branch pipe is arranged on the bottom wall of the accommodating part, and the partition plate divides one end of the accommodating part, which is close to the air inlet pipe, into a first part and a second part; the pressure relief unit is arranged in the first subsection; the connection part of the second branch pipe and the first branch pipe is positioned at one side of the first branch pipe, which is close to the second branch pipe;
when the connecting pipe is installed, the second branch pipe is bent, so that the second branch pipe is communicated with the connecting pipe;
the air extraction joint is connected with the low-pressure storage unit, the vacuum pump works, and the air in the low-pressure storage unit sequentially passes through the air extraction joint, the first pipeline, the air inlet pipe, the vacuum pump and the air outlet pipe; after the vacuumizing is finished, the pressure relief unit is opened, and gas enters the first pipeline.
2. The refrigerator of claim 1, wherein: the pressure relief unit comprises a pressure relief piece, a vibration reduction sleeve is sleeved outside the pressure relief piece, and the vibration reduction sleeve is in butt joint with the first subsection.
3. The refrigerator according to any one of claims 1 to 2, wherein: the three-way joint is formed by compression molding.
4. The refrigerator according to any one of claims 1 to 2, wherein: the low-pressure storage unit is provided with an extraction opening communicated with the inner cavity of the low-pressure storage unit; the air suction device is characterized in that a one-way ventilation unit is arranged in the air suction opening, so that the air suction opening is opened when the air suction device is used for sucking air, and the air suction opening is sealed after the air suction is finished.
5. The refrigerator of claim 4, wherein: the air suction connector is provided with a butt joint communicated with the first pipeline, and the butt joint is used for being in butt joint with an air suction port on the low-pressure storage unit so as to be communicated with an inner cavity of the low-pressure storage unit when vacuumizing;
when vacuumizing, the vacuum pump works, and the gas in the low-pressure storage unit sequentially passes through the extraction opening, the opposite joint, the first pipeline, the air inlet pipe, the vacuum pump and the exhaust pipe.
6. The refrigerator according to any one of claims 1 to 2, wherein: the low-pressure storage unit is detachably connected to the box door.
7. The refrigerator according to any one of claims 1 to 2, wherein: and the box door is provided with an air extraction button for starting vacuumizing operation.
8. The method for controlling vacuum pumping of a refrigerator as claimed in claim 1, wherein: the refrigerator is provided with a control unit; the method for controlling the vacuumizing of the refrigerator comprises the following steps of:
determining that the vacuumizing condition is met;
the control unit controls the air extractor to vacuumize;
and when the vacuumizing is finished, the control unit controls the pressure relief unit to be opened, and gas enters the first pipeline.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757175.2A CN114061216B (en) | 2020-07-31 | 2020-07-31 | Refrigerator and vacuumizing control method thereof |
| PCT/CN2021/099156 WO2022022087A1 (en) | 2020-07-31 | 2021-06-09 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010757175.2A CN114061216B (en) | 2020-07-31 | 2020-07-31 | Refrigerator and vacuumizing control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114061216A CN114061216A (en) | 2022-02-18 |
| CN114061216B true CN114061216B (en) | 2023-06-23 |
Family
ID=80227479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010757175.2A Active CN114061216B (en) | 2020-07-31 | 2020-07-31 | Refrigerator and vacuumizing control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114061216B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060041509A (en) * | 2004-11-09 | 2006-05-12 | 엘지전자 주식회사 | Apparatus for keeping food long term in refrigerator |
| CN204043274U (en) * | 2014-08-25 | 2014-12-24 | 海信容声(广东)冰箱有限公司 | A kind of antistaling vacuum container and refrigerator |
| CN205023192U (en) * | 2015-08-12 | 2016-02-10 | 博西华电器（江苏）有限公司 | Vacuum storage subassembly reaches refrigerator including this vacuum storage subassembly |
| CN210532794U (en) * | 2019-05-27 | 2020-05-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN210532797U (en) * | 2019-05-27 | 2020-05-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN111380278A (en) * | 2018-12-29 | 2020-07-07 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080134706A1 (en) * | 2006-12-07 | 2008-06-12 | Patrick G. Ellis-Jones | Refrigerator |
-
2020
- 2020-07-31 CN CN202010757175.2A patent/CN114061216B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060041509A (en) * | 2004-11-09 | 2006-05-12 | 엘지전자 주식회사 | Apparatus for keeping food long term in refrigerator |
| CN204043274U (en) * | 2014-08-25 | 2014-12-24 | 海信容声(广东)冰箱有限公司 | A kind of antistaling vacuum container and refrigerator |
| CN205023192U (en) * | 2015-08-12 | 2016-02-10 | 博西华电器（江苏）有限公司 | Vacuum storage subassembly reaches refrigerator including this vacuum storage subassembly |
| CN111380278A (en) * | 2018-12-29 | 2020-07-07 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN210532794U (en) * | 2019-05-27 | 2020-05-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
| CN210532797U (en) * | 2019-05-27 | 2020-05-15 | 海信（山东）冰箱有限公司 | A kind of refrigerator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114061216A (en) | 2022-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN211204586U (en) | Refrigerator with a door | |
| US7360371B2 (en) | Refrigerating device comprising an evacuatable storage compartment | |
| US7930892B1 (en) | Refrigerator with continuous vacuum insulation | |
| WO2021208428A1 (en) | Refrigerator | |
| CN111578587A (en) | Refrigerator with a door | |
| CN103017441B (en) | Refrigerator with vacuumizing device and control method thereof | |
| CN212179334U (en) | Refrigerator with a door | |
| CN111578586A (en) | Refrigerator with a door | |
| CN101331970B (en) | Vacuum preserving system and control method thereof | |
| CN111578585A (en) | Refrigerator with a door | |
| CN114061216B (en) | Refrigerator and vacuumizing control method thereof | |
| CN111765696B (en) | Refrigerator with a door | |
| CN114061195B (en) | Refrigerator and vacuumizing control method thereof | |
| WO2022022087A1 (en) | Refrigerator | |
| CN113551467A (en) | Refrigerator with a door | |
| CN212179329U (en) | Refrigerator with a door | |
| WO2021217779A1 (en) | Refrigerator | |
| CN114061217A (en) | Refrigerator and vacuumizing control method thereof | |
| CN111765697A (en) | Refrigerator with a door | |
| CN113551468A (en) | Refrigerator with a door | |
| CN113531990B (en) | Refrigerator with a door | |
| CN111578584A (en) | Refrigerator with a door | |
| CN216144039U (en) | Refrigerator with a door | |
| CN216144040U (en) | Refrigerator with a door | |
| CN216347260U (en) | Refrigerator with a door |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
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. |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |