CN112833600B - A kind of refrigerator - Google Patents

A kind of refrigerator Download PDF

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Publication number
CN112833600B
CN112833600B CN201911157480.1A CN201911157480A CN112833600B CN 112833600 B CN112833600 B CN 112833600B CN 201911157480 A CN201911157480 A CN 201911157480A CN 112833600 B CN112833600 B CN 112833600B
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CN
China
Prior art keywords
refrigerator
box body
inlet pipe
air pressure
air inlet
Prior art date
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Active
Application number
CN201911157480.1A
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Chinese (zh)
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CN112833600A (en
Inventor
刘磊
陈忠峻
冯衬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Original Assignee
Qingdao Haier Refrigerator Co Ltd
Haier Smart Home Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qingdao Haier Refrigerator Co Ltd, Haier Smart Home Co Ltd filed Critical Qingdao Haier Refrigerator Co Ltd
Priority to CN201911157480.1A priority Critical patent/CN112833600B/en
Publication of CN112833600A publication Critical patent/CN112833600A/en
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Publication of CN112833600B publication Critical patent/CN112833600B/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/14—Collecting or removing condensed and defrost water; Drip trays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/003—Arrangement or mounting of control or safety devices for movable 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
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F25D29/005—Mounting of control devices

Abstract

The invention provides a refrigerator which comprises a refrigerator body, a drainage pipeline, an air pressure sensor, an air inlet pipe and an electromagnetic switch. The drainage pipeline is arranged at the lower part of the refrigerating chamber in the box body and used for discharging water in the refrigerating chamber. The air pressure sensor is used for detecting the air pressure in the box body. One end of the air inlet pipe is communicated to the inside of the drain pipe, and the other end of the air inlet pipe is communicated to the outside of the box body. Electromagnetic switch sets up in the intake pipe, and electromagnetic switch opens under the inside atmospheric pressure of box is less than the condition of setting for the threshold value to make the intake pipe switch on, thereby lead to inside intake pipe and the outside intercommunication of box of passing through of box, and under the condition that does not influence the outward appearance of refrigerator, can balance the inside and outside atmospheric pressure of refrigerator, reduced the degree of difficulty that the user opened the door.

Description

A kind of refrigerator
Technical Field
The invention relates to the technical field of household appliances, in particular to a refrigerator.
Background
After the refrigerator is opened, cold air in the refrigerator overflows, and hot air outside the refrigerator enters the refrigerator. Due to the principle of expansion with heat and contraction with cold, the volume of hot air is reduced along with the reduction of the temperature after the hot air enters the refrigerator, the air pressure inside the refrigerator is lower than the external atmospheric pressure, and the difficulty of opening the door of a user is increased. In view of the above problems, a conventional solution is to provide a power-assisted handle outside the refrigerator, and to increase the external door opening force to solve the problem, but the handle structure is prone to safety problems of hands being caught, and the appearance of the refrigerator is affected.
Disclosure of Invention
The invention aims to provide a refrigerator, which enables a door body of the refrigerator to be easily opened and improves user experience by automatically balancing air pressure inside and outside the refrigerator.
A further object of the present invention is to improve the cleanliness of gas introduced into the interior of a refrigerator during the process of balancing the pressure of the interior and exterior of the refrigerator, thereby making the interior of the refrigerator more sanitary.
In particular, the present invention provides a refrigerator including:
a box body;
the drainage pipeline is arranged at the lower part of the refrigeration chamber in the box body and is used for discharging water in the refrigeration chamber;
the air pressure sensor is used for detecting the air pressure in the box body;
one end of the air inlet pipe is communicated to the inside of the drainage pipeline, and the other end of the air inlet pipe is communicated to the outside of the box body;
and the electromagnetic switch is arranged on the air inlet pipe and is configured to be opened under the condition that the air pressure in the box body is smaller than a set threshold value, so that the air inlet pipe is conducted, and the box body is communicated with the outside of the box body through the air inlet pipe.
Optionally, one end of the air inlet pipe, which is communicated with the drainage pipeline, extends into the drainage pipeline and is attached to the inner wall of the drainage pipeline to extend downwards, so that the pipe opening of the air inlet pipe is consistent with the drainage direction; and/or
The height of the other end of the air inlet pipe communicated to the outside of the box body is higher than that of one end of the air inlet pipe communicated to the inside of the drainage pipeline, and the electromagnetic switch is close to the other end of the air inlet pipe communicated to the outside of the box body.
Optionally, an air filtering device is arranged at one end of the air inlet pipe communicated to the outside of the refrigerator.
Optionally, the refrigerator further includes:
an electric control board which is respectively connected with the air pressure sensor and the electromagnetic switch by signals and is configured to open and close the electromagnetic switch according to the air pressure in the box body
Optionally, the refrigerator further includes:
and the operation sensing device is configured to sense the operation of the refrigerator by a user and trigger the electric control board to start after the operation is determined to be acquired.
Optionally, the refrigerator further includes:
and the defrosting device is arranged in the refrigerating chamber and used for heating and defrosting the frost in the refrigerating chamber so as to discharge the generated defrosting water through the drainage pipeline.
Optionally, the defrosting device is further configured to, after heating is started, suspend heating until the air pressure inside the tank recovers to be greater than or equal to the set threshold if the air pressure inside the tank is smaller than the set threshold.
Optionally, the refrigerator further includes:
the water receiving box is arranged at the lower end of the drainage pipeline and is used for receiving water drained by the drainage pipeline;
the valve is arranged on the drainage pipeline and positioned below one end, communicated with the drainage pipeline, of the air inlet pipe, and the valve is configured to be closed under the condition that the air pressure inside the box body is smaller than the set threshold value.
Optionally, the valve comprises at least one metal pull-in point;
the refrigerator also comprises electromagnetic relays, wherein the number of the electromagnetic relays is the same as that of the metal attraction points, and the electromagnetic relays are configured to open and close the valve through the metal attraction points according to the air pressure in the refrigerator body.
Optionally, the valve comprises:
the center of the sealing cover is provided with a through notch, and the metal suction point is arranged on the sealing cover;
the hinge shaft is internally provided with a spring return device, divides the sealing cover into two symmetrical parts and is in adaptive connection with the two parts of the sealing cover;
and the rubber pad is in adaptive connection with the hinge shaft and is positioned on the sealing cover so as to cover the notch of the sealing cover.
The electromagnetic switch of the refrigerator is opened under the condition that the air pressure in the refrigerator body is smaller than the set threshold value, so that the air inlet pipe is conducted, the interior of the refrigerator body is communicated with the exterior of the refrigerator body through the air inlet pipe, the air pressure in the interior and the exterior of the refrigerator can be balanced, the difficulty of opening the door by a user is reduced, and the appearance of the refrigerator is not influenced.
Furthermore, the air filter device is arranged at the other end of the air inlet pipe communicated to the outside of the refrigerator, so that the outside air enters the refrigerator after being filtered by the air filter device, the cleanliness of the air entering the refrigerator is improved, and the inside of the refrigerator is cleaner and more sanitary.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a refrigerator having an air pressure balancing function according to an embodiment of the present invention;
FIG. 2 is a schematic configuration view of a drainpipe part and an air intake pipe part of the refrigerator having an air pressure balancing function shown in FIG. 1;
fig. 3 is a schematic view of an operation sensing device of a refrigerator having an air pressure balancing function according to another embodiment of the present invention;
fig. 4 is a schematic configuration view of a valve part of the refrigerator having the air pressure balancing function shown in fig. 1.
Detailed Description
Fig. 1 is a schematic configuration view of a refrigerator having an air pressure balancing function according to one embodiment of the present invention. The refrigerator may generally include a cabinet 1, a drain duct 2, an air pressure sensor 5, an intake duct 3, and an electromagnetic switch 4. The water discharge pipeline 2 is arranged at the lower part of the refrigerating chamber in the box body 1 and is used for discharging water in the refrigerating chamber. The air pressure sensor 5 detects air pressure inside the case 1. One end of the air inlet pipe 3 is communicated to the inside of the drainage pipeline 2, and the other end is communicated to the outside of the box body 1. Electromagnetic switch 4 sets up on intake pipe 3, and electromagnetic switch 4 opens under the condition that the atmospheric pressure of box 1 inside is less than the settlement threshold value to make intake pipe 3 switch on, thereby lead to box 1 inside to communicate with box 1 outside through intake pipe 3.
In this embodiment, the electromagnetic switch 4 is opened when the air pressure inside the refrigerator body 1 is smaller than the set threshold, so that the air pressure inside and outside the refrigerator can be balanced, the difficulty of opening the door by a user is reduced without affecting the appearance of the refrigerator, and the user experience is improved.
Referring to fig. 1 and 2, in an embodiment of the present invention, one end of the air inlet pipe 3, which is communicated with the drainage pipeline 2, extends into the drainage pipeline 2 and abuts against the inner wall of the drainage pipeline 2 to extend downward, so that the pipe opening of the air inlet pipe is consistent with the drainage direction, water in the drainage pipeline 2 can be prevented from entering the air inlet pipe 3 along the pipe opening of the air inlet pipe 3, corrosion of water on the electromagnetic switch 4 is reduced, the service life of the electromagnetic switch 4 is prolonged, and the cost of the refrigerator is saved. Of course, in this embodiment, it is also possible to make the height of the other end of the air intake pipe 3 communicated to the outside of the box body 1 higher than the height of the one end of the air intake pipe 3 communicated to the inside of the water discharge pipe 2, and to make the position of the electromagnetic switch 4 close to the other end of the air intake pipe 3 communicated to the outside of the box body 1, thereby further preventing the water from corroding the electromagnetic switch 4.
In one embodiment of the present invention, the other end of the intake duct 3 communicating to the outside of the refrigerator is provided with an air filtering device 7. In this embodiment, the outside air is filtered by the air filter 7 and then enters the refrigerator, which improves the cleanliness of the air entering the refrigerator, thereby making the interior of the refrigerator cleaner and more sanitary, and also preventing impurities in the air from remaining in the air inlet pipe 3 and adhering to the electromagnetic switch 4, resulting in blocking the air inlet pipe 3 and affecting the performance of the electromagnetic switch 4.
In an embodiment of the present invention, the refrigerator further includes an electric control board 6, the electric control board 6 is in signal connection with the air pressure sensor 5 and the electromagnetic switch 4, respectively, and the electric control board 6 opens and closes the electromagnetic switch 4 according to the air pressure inside the refrigerator body 1.
In this embodiment, the air pressure sensor 5 transmits the detected air pressure value inside the refrigerator to the electronic control board 6, the electronic control board 6 compares the received air pressure value with a preset threshold value, when the internal air pressure value is smaller than the preset threshold value, the electronic control board 6 turns on the electromagnetic switch 4, when the internal air pressure value is equal to the preset threshold value, the electronic control board 6 turns off the electromagnetic switch 4, and the preset threshold value may be equal to the external air pressure value. Certainly, under the condition that the door opening experience of a user is not influenced, the set threshold value can also be smaller than the external air pressure value, so that the opening times of the electromagnetic switch 4 can be reduced, the service life of the electromagnetic switch 4 is prolonged, and electric energy is saved. The size of the set threshold may be set by a person skilled in the art according to a user usage situation, which is not specifically limited in the embodiment of the present invention.
Certainly, in the process of installing the refrigerator, the electromagnetic switch 4 may also be turned on to make the air pressure inside the refrigerator body 1 equal to the air pressure outside, and the air pressure sensor 5 detects the air pressure inside the refrigerator body 1 to obtain the air pressure value outside, and the air pressure value is used as a set threshold to adapt to different external air pressures in different environments.
Referring to fig. 3, in one embodiment of the present invention, the refrigerator further includes an operation sensing device 17, and the operation sensing device 17 senses an operation of the refrigerator by a user and triggers the electric control board 6 to start after determining that the operation is acquired.
In this embodiment, the operation sensing device 17 may be a touch sensing device, and when the touch operation of the user is sensed, the operation sensing device 17 may trigger the electric control board 6 to start. The operation sensing device 17 may be disposed on the refrigerator door 16, preferably on a side of the refrigerator door 16 that is easily touched by a user when the user opens the refrigerator door 16, which facilitates the user to trigger the operation sensing device 17 and does not affect the appearance of the refrigerator.
Of course, the operation sensing device 17 can also be an infrared human body sensing device, and as the user approaches the refrigerator, when the infrared human body sensing device senses the user, the electronic control board 6 is triggered to start. Thus, before the user opens the refrigerator door 16, the air pressure inside the refrigerator body 1 is balanced, and the use experience of the user is further improved.
Referring to fig. 1, in one embodiment of the present invention, the refrigerator further includes a defrosting device 18, and the defrosting device 18 is disposed in the refrigerating chamber and is used for defrosting the ice in the refrigerating chamber by heating, so that the generated defrosting water is discharged through the water discharge pipe 2. The defrosting device 18 can reduce the power consumption of the refrigerator by defrosting.
In an embodiment of the present invention, after the heating is started, if the air pressure inside the box 1 is smaller than the set threshold, the heating is suspended until the air pressure inside the box 1 is recovered to be greater than or equal to the set threshold. During the air pressure balancing process inside the refrigerator, the heating of the defrosting device 18 is suspended, and the water in the water discharge pipeline 2 can be reduced.
In the embodiment, the defrosting device 18 is in signal connection with the air pressure sensor 5, the defrosting device 18 receives the air pressure value detected by the air pressure sensor 5, compares the received air pressure value with the set threshold value of the defrosting device 18, and suspends or starts the defrosting cycle according to the comparison result. The set threshold of the defrosting device 18 and the set threshold for controlling the on and off of the electromagnetic switch may be the same threshold.
In one embodiment of the invention, the refrigerator further comprises a water receiving box 9 and a valve 8. The water receiving box 9 is arranged at the lower end of the drainage pipeline 2 to receive water drained by the drainage pipeline 2. The valve 8 is arranged on the drainage pipeline 2 and is positioned below one end of the air inlet pipe 3 communicated with the drainage pipeline 2, and the valve 8 is closed under the condition that the air pressure in the box body 1 is smaller than a set threshold value.
In this embodiment, when the air pressure inside the box body 1 is smaller than the set threshold, the valve 8 is controlled by the electric control board 6 to close, so that the water in the water receiving box 9 can be prevented from flowing backwards. In addition, the heating of the defrosting device 18 is suspended, so that the generated defrosting water can be reduced, the valve 8 can be prevented from being opened under the action of the gravity of the water discharged by the drainage pipeline 2, and the water in the water receiving box 9 is further prevented from flowing backwards along the drainage pipeline 2.
Referring to fig. 4, in one embodiment of the present invention, the valve 8 includes at least one metal pull-in point 13. The refrigerator also comprises electromagnetic relays 14, the number of the electromagnetic relays 14 is the same as that of the metal attraction points 13, and the electromagnetic relays 14 open and close the valve through the metal attraction points 13 according to the air pressure in the refrigerator body.
In this embodiment, the electromagnetic relay 14 is connected to the electronic control board 6 by a connecting line 15, and the valve 8 is in a normally closed state. If the refrigerator is in a non-defrosting period (namely the defrosting device 18 is not started to heat), the valve 8 is closed, the box body 1 is in a closed state, if the air pressure value of the box body 1 detected by the air pressure sensor 5 is smaller than a set threshold value at the moment, the electric control board 6 controls the electromagnetic switch 4 to be opened, air enters the drainage pipeline 2 from the air inlet pipe 3 to achieve the effect of balancing the air pressure inside and outside the box body 1, and in the process of balancing the air pressure inside and outside the box body 1 in the non-defrosting period, the electromagnetic relay 14 does not attract the metal attraction point 13, so that the electric energy is saved.
If the refrigerator is in a defrosting period (namely the defrosting device 18 is started to heat), the metal attraction point 13 is not attracted by the electromagnetic relay 14, the valve 8 is opened under the action of gravity of water, when the air pressure sensor 5 detects that the air pressure of the refrigerator body 1 is lower than a set threshold value, the electromagnetic relay 14 receives the control of the electric control board 6 and attracts the metal attraction point 13, the valve 8 is closed after receiving an upward acting force, the valve 8 is prevented from being opened in the air pressure balancing process of the refrigerator, and the water of the water receiving box 9 is prevented from flowing backwards. And the defrosting device 18 stops heating, the defrosting period stops, and the electric control board 6 controls the electromagnetic switch 4 to be turned on. When the air pressure is balanced, the defrosting device 18 continues to heat, the refrigerator recovers the defrosting period, the electromagnetic relay 14 stops attracting the metal attraction point 13, and the valve 8 can be opened under the action of the gravity of the water. The suspension of the defrosting period can reduce the generated defrosting water, so that the water in the drainage pipeline 2 is reduced, the gravity of the water borne by the valve 8 is reduced, the valve 8 can be prevented from being opened in the air pressure balance process of the refrigerator, and the water in the water receiving box 9 is prevented from flowing backwards along the drainage pipeline 2.
With continued reference to fig. 4, in one embodiment of the present invention, the valve 8 includes a sealing cap 10, a hinge shaft 12, and a rubber gasket 11. The center of the sealing cover 10 is provided with a through gap, and a metal suction point 13 is arranged on the sealing cover 10. The hinge shaft 12 is provided with a spring return device, and the hinge shaft 12 divides the sealing cover 10 into two parts which are symmetrical to each other and are connected with the two parts of the sealing cover 10 in a matching way. The rubber pad 11 is connected with the hinge shaft 12 in a fitting manner, is positioned on the sealing cover 10 and covers the gap of the sealing cover 10.
In this embodiment, if a part of the sealing cover 10 has water thereon, the part of the sealing cover 10 will be opened after receiving the gravity of the water, so as to increase the speed of draining the sealing cover 10. The spring return device arranged in the hinge shaft 12 can return the drained sealing cover 10, and the metal attraction point 13 on the sealing cover 10 is attracted upwards by the electromagnetic relay 14, so that the tightness of the sealing cover 10 and the rubber pad 11 can be improved, and water is prevented from flowing backwards along the drainage pipeline 2.
Thus, it should be understood by those skilled in the art that while a number of exemplary embodiments of the present invention have been illustrated and described in detail herein, many other variations and modifications, which are consistent with the principles of this invention, may be ascertained or derived from the disclosure herein without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.

Claims (8)

1. A refrigerator, comprising:
a box body;
the drainage pipeline is arranged at the lower part of the refrigeration chamber in the box body and is used for discharging water in the refrigeration chamber;
the air pressure sensor is used for detecting the air pressure in the box body;
one end of the air inlet pipe is communicated to the inside of the drainage pipeline, and the other end of the air inlet pipe is communicated to the outside of the box body;
the electromagnetic switch is arranged on the air inlet pipe and is configured to be opened under the condition that the air pressure in the box body is smaller than a set threshold value so as to enable the air inlet pipe to be conducted, and therefore the interior of the box body is communicated with the exterior of the box body through the air inlet pipe;
the valve is arranged on the drainage pipeline and is positioned below one end of the air inlet pipe communicated with the drainage pipeline, and the valve is configured to be closed when the air pressure in the box body is smaller than the set threshold value;
one end of the air inlet pipe, which is communicated with the drainage pipeline, extends into the drainage pipeline and is attached to the inner wall of the drainage pipeline to extend downwards, so that the pipe orifice of the air inlet pipe is consistent with the drainage direction;
the defrosting device is arranged in the refrigerating chamber and used for heating and defrosting the frost in the refrigerating chamber so as to discharge the generated defrosting water through the drainage pipeline;
the defrosting device is also configured to suspend heating until the air pressure inside the box body is recovered to be larger than or equal to the set threshold value if the air pressure inside the box body is smaller than the set threshold value after heating is started.
2. The refrigerator according to claim 1,
the height of the other end of the air inlet pipe communicated to the outside of the box body is higher than that of one end of the air inlet pipe communicated to the inside of the drainage pipeline, and the electromagnetic switch is close to the other end of the air inlet pipe communicated to the outside of the box body.
3. The refrigerator according to claim 1,
one end of the air inlet pipe communicated to the outside of the refrigerator is provided with an air filtering device.
4. The refrigerator according to claim 1, further comprising:
and the electric control board is in signal connection with the air pressure sensor and the electromagnetic switch respectively, and is configured to open and close the electromagnetic switch according to the air pressure in the box body.
5. The refrigerator according to claim 4, further comprising:
and the operation sensing device is configured to sense the operation of the refrigerator by a user and trigger the electric control board to start after the operation is determined to be acquired.
6. The refrigerator according to any one of claim 1, further comprising:
and the water receiving box is arranged at the lower end of the drainage pipeline and is used for receiving water drained by the drainage pipeline.
7. The refrigerator according to claim 6,
the valve comprises at least one metal suction point;
the refrigerator also comprises electromagnetic relays, wherein the number of the electromagnetic relays is the same as that of the metal attraction points, and the electromagnetic relays are configured to open and close the valve according to the air pressure inside the refrigerator body through the metal attraction points.
8. The refrigerator according to claim 7, wherein the valve comprises:
the center of the sealing cover is provided with a through notch, and the metal suction point is arranged on the sealing cover;
the hinge shaft is internally provided with a spring return device, divides the sealing cover into two symmetrical parts and is in adaptive connection with the two parts of the sealing cover;
and the rubber pad is in adaptive connection with the hinge shaft and is positioned on the sealing cover so as to cover the notch of the sealing cover.
CN201911157480.1A 2019-11-22 2019-11-22 A kind of refrigerator Active CN112833600B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911157480.1A CN112833600B (en) 2019-11-22 2019-11-22 A kind of refrigerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911157480.1A CN112833600B (en) 2019-11-22 2019-11-22 A kind of refrigerator

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Publication Number Publication Date
CN112833600A CN112833600A (en) 2021-05-25
CN112833600B true CN112833600B (en) 2022-09-23

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2089601U (en) * 1991-02-07 1991-11-27 刘东华 Anti-cold leakage systme of refrigerator water drain hole
CN2828681Y (en) * 2005-07-20 2006-10-18 海尔集团公司 Freezer with pressure balance drainage device
CN201206924Y (en) * 2008-04-29 2009-03-11 博西华电器（江苏）有限公司 Refrigerator
CN201277783Y (en) * 2008-08-25 2009-07-22 河南新飞电器有限公司 Water drainage pipe for refrigerator
EP2597403A2 (en) * 2011-11-22 2013-05-29 Indesit Company Beyaz Esya Sanayi ve Ticaret Anonim Sirketi Mechanism for pressure balancing
US20180216867A1 (en) * 2017-01-31 2018-08-02 Haier Us Appliance Solutions, Inc. Refrigerator appliance and method with reduced freezer door opening force
CN108547369A (en) * 2018-06-11 2018-09-18 广东安格尔橡塑科技有限公司 A kind of portable odour-proof floor drain
CN109696003A (en) * 2018-02-24 2019-04-30 青岛海尔股份有限公司 Refrigerator and its drainage pipeline component

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2089601U (en) * 1991-02-07 1991-11-27 刘东华 Anti-cold leakage systme of refrigerator water drain hole
CN2828681Y (en) * 2005-07-20 2006-10-18 海尔集团公司 Freezer with pressure balance drainage device
CN201206924Y (en) * 2008-04-29 2009-03-11 博西华电器（江苏）有限公司 Refrigerator
CN201277783Y (en) * 2008-08-25 2009-07-22 河南新飞电器有限公司 Water drainage pipe for refrigerator
EP2597403A2 (en) * 2011-11-22 2013-05-29 Indesit Company Beyaz Esya Sanayi ve Ticaret Anonim Sirketi Mechanism for pressure balancing
US20180216867A1 (en) * 2017-01-31 2018-08-02 Haier Us Appliance Solutions, Inc. Refrigerator appliance and method with reduced freezer door opening force
CN109696003A (en) * 2018-02-24 2019-04-30 青岛海尔股份有限公司 Refrigerator and its drainage pipeline component
CN108547369A (en) * 2018-06-11 2018-09-18 广东安格尔橡塑科技有限公司 A kind of portable odour-proof floor drain

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