CN111238073A - Refrigerator refrigerating system - Google Patents

Refrigerator refrigerating system Download PDF

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Publication number
CN111238073A
CN111238073A CN202010171356.7A CN202010171356A CN111238073A CN 111238073 A CN111238073 A CN 111238073A CN 202010171356 A CN202010171356 A CN 202010171356A CN 111238073 A CN111238073 A CN 111238073A
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CN
China
Prior art keywords
evaporator
freezing
electromagnetic valve
temperature
port
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010171356.7A
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Chinese (zh)
Inventor
刘宏宇
尚殿波
陈开松
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.)
Changhong Meiling Co Ltd
Original Assignee
Changhong Meiling 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 Changhong Meiling Co Ltd filed Critical Changhong Meiling Co Ltd
Priority to CN202010171356.7A priority Critical patent/CN111238073A/en
Publication of CN111238073A publication Critical patent/CN111238073A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
    • F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F25B41/22—Disposition of valves, e.g. of on-off valves or flow control valves between evaporator and compressor
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/37—Capillary tubes
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F25B47/022—Defrosting cycles hot gas defrosting
    • 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
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • 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
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles
    • F25B2347/022—Cool gas defrosting
    • 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
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Defrosting Systems (AREA)

Abstract

The invention discloses a refrigeration system of a refrigerator, and relates to the technical field of refrigerators. The invention comprises a compressor, a freezing anti-condensation pipe, a condenser, a filter, an electric valve, a variable-temperature capillary tube, a variable-temperature evaporator, a refrigeration capillary tube, a refrigeration evaporator, a four-way pipe, a freezing evaporator, a freezing capillary tube, a first electromagnetic valve and a second electromagnetic valve; the first electromagnetic valve comprises a port a and a port b; the second electromagnetic valve comprises a port c and a port d; the compressor, the freezing anti-condensation pipe, the condenser, the filter, the electric valve, the variable temperature capillary tube, the variable temperature evaporator and the port b of the first electromagnetic valve are sequentially connected in series to form a loop. According to the invention, on the basis of a refrigeration three-system that the refrigeration evaporator and the temperature-changing evaporator are connected in parallel and are connected in series with the freezing evaporator, two first electromagnetic valves and two second electromagnetic valves which are connected in series are added, so that the flow direction of a refrigerant is changed, the independent defrosting of the temperature-changing evaporator and the freezing evaporator is realized, the electric energy is saved, and the temperature rise of a compartment is avoided.

Description

Refrigerator refrigerating system
Technical Field
The invention belongs to the technical field of refrigerators, and particularly relates to a refrigerator refrigerating system.
Background
In a three-system refrigerator, refrigeration, temperature change and freezing evaporators are generally connected together in a series-parallel connection mode. When the evaporator is defrosted, a mode that a freezing evaporator and a variable-temperature evaporator enter into defrosting at the same time is widely adopted, the control method for defrosting at the same time is simple and convenient, but from the perspective of energy saving of a refrigerator, the control method for defrosting at the same time has the following defects:
1. the variable temperature evaporator and the freezing evaporator have different frosting degrees, when one of the evaporators needs defrosting, the other evaporator does not need defrosting, but passively enters a defrosting process, and unnecessary electric energy waste is caused.
2. The frosting degrees of the variable temperature evaporator and the freezing evaporator are different, so that the time points for finishing defrosting have a precedence relationship, when one evaporator finishes defrosting, the refrigerator can enter refrigeration only after the other evaporator finishes defrosting, and the temperature return of the refrigerator compartment is more.
Therefore, a refrigeration system for a refrigerator to compensate for the above disadvantages has yet to be developed.
Disclosure of Invention
The invention aims to provide a refrigerator refrigerating system.A first electromagnetic valve and a second electromagnetic valve which are connected in parallel with a refrigerating evaporator and a variable-temperature evaporator and are connected in series with a freezing evaporator are additionally provided with two first electromagnetic valves and two second electromagnetic valves, so that the flow direction of a refrigerant is changed, and the independent defrosting of the variable-temperature evaporator and the freezing evaporator is realized; the problems of electric energy waste and room temperature rise caused by different frosting degrees and different defrosting times of the conventional variable temperature evaporator and the conventional refrigeration evaporator and during defrosting are solved.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a refrigeration system of a refrigerator, which comprises a compressor, a freezing anti-condensation pipe, a condenser, a filter, an electric valve, a variable-temperature capillary tube, a variable-temperature evaporator, a refrigerating capillary tube, a refrigerating evaporator, a four-way pipe, a freezing evaporator, a freezing capillary tube, a first electromagnetic valve and a second electromagnetic valve, wherein the freezing anti-condensation pipe is arranged in the refrigerating capillary tube; the first electromagnetic valve comprises a port a and a port b; the second electromagnetic valve comprises a port c and a port d;
the compressor, the freezing anti-condensation pipe, the condenser, the filter, the electric valve, the variable temperature capillary tube, the variable temperature evaporator and the port b of the first electromagnetic valve are sequentially connected in series to form a loop;
the electric valve, the refrigeration capillary tube, the refrigeration evaporator, the four-way pipe, the d port of the second electromagnetic valve, the freezing evaporator and the inlet of the compressor are sequentially connected in series to form a branch;
the electric valve is communicated with the port a of the first electromagnetic valve through a freezing capillary tube and a four-way pipe.
Further, a relative pipe orifice of the four-way pipe is respectively communicated with an outlet of the refrigeration evaporator and an inlet of the second electromagnetic valve; the other opposite pipe orifice of the four-way pipe is respectively communicated with the outlet of the freezing capillary and the port a of the first electromagnetic valve.
The invention has the following beneficial effects:
1. according to the invention, on the basis of a refrigeration three-system that the refrigeration evaporator and the temperature-changing evaporator are connected in parallel and are connected in series with the freezing evaporator, the first electromagnetic valve with one inlet and two outlets is added at the tail end outlet of the temperature-changing evaporator, the second electromagnetic valve with one inlet and two outlets is added at the front end inlet of the freezing evaporator, and the flow direction of a refrigerant is changed through the action change of the first electromagnetic valve and the second electromagnetic valve, so that the independent defrosting of the temperature-changing evaporator and the freezing evaporator is realized, the electric energy is saved, and the temperature rise of a compartment is avoided.
2. When the temperature-changing chamber is defrosted, the first electromagnetic valve keeps the opening a smooth, and the second electromagnetic valve keeps the opening c smooth; the refrigerant flows to the electric valve from the compressor through the freezing condensation preventing pipe, the condenser and the filter in sequence; under the action of the electric valve, the freezing chamber can be independently refrigerated or the freezing chamber and the refrigerating chamber can be refrigerated simultaneously; the problems of electric energy waste and refrigerator compartment temperature rise caused by different defrosting time of the freezing compartment and the temperature-changing compartment are avoided.
3. When the freezing chamber is defrosted, the first electromagnetic valve keeps the opening b unblocked, and the second electromagnetic valve keeps the opening d unblocked; the refrigerant flows to the electric valve from the compressor through the freezing condensation preventing pipe, the condenser and the filter in sequence; under the effect of the electric valve, the temperature-changing chamber can be independently refrigerated or the temperature-changing chamber and the refrigerating chamber can be refrigerated simultaneously, so that the problems of electric energy waste and temperature rise of the refrigerator chamber caused by different defrosting time of the temperature-changing chamber and the refrigerating chamber are avoided.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a refrigeration system of the present invention;
FIG. 2 is a flow chart of the refrigerant in defrosting the temperature-varying chamber according to the present invention;
FIG. 3 is a flow diagram of the refrigerant during defrosting of the freezing chamber according to the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-compressor, 2-freezing anti-condensation pipe, 3-condenser, 4-filter, 5-electric valve, 6-temperature-changing capillary tube, 7-temperature-changing evaporator, 8-first electromagnetic valve, 9-refrigerating capillary tube, 10-refrigerating evaporator, 11-four-way pipe, 12-second electromagnetic valve, 13-freezing evaporator and 14-freezing capillary tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-3, the present invention is a refrigeration system of a refrigerator, including a compressor 1, a freezing condensation-preventing pipe 2, a condenser 3, a filter 4, an electric valve 5, a temperature-changing capillary tube 6, a temperature-changing evaporator 7, a refrigerating capillary tube 9, a refrigerating evaporator 10, a four-way pipe 11, a freezing evaporator 13, a freezing capillary tube 14, a first electromagnetic valve 8, and a second electromagnetic valve 12; the first electromagnetic valve 8 comprises a port a and a port b; the second electromagnetic valve 12 comprises a port c and a port d; the first electromagnetic valve 8 and the second electromagnetic valve 12 are both one-in two-out electromagnetic valves;
the compressor 1, the freezing anti-condensation pipe 2, the condenser 3, the filter 4, the electric valve 5, the variable temperature capillary tube 6, the variable temperature evaporator 7 and the port b of the first electromagnetic valve 8 are sequentially connected in series to form a loop;
the electric valve 5, the refrigeration capillary 9, the refrigeration evaporator 10, the four-way pipe 11, the port d of the second electromagnetic valve 12, the freezing evaporator 13 and the inlet of the compressor 1 are sequentially connected in series to form a branch;
the electric valve 5 is connected to the port a of the first electromagnetic valve 8 through a freezing capillary 14 and a four-way pipe 11.
The electric valve 5 is a one-in three-out valve, and thus it is possible to control from which port the refrigerant passing through the inside thereof flows out.
Wherein, a relative nozzle of the four-way pipe 11 is respectively communicated with the outlet of the refrigeration evaporator 10 and the inlet of the second electromagnetic valve 12; the other opposite pipe orifice of the four-way pipe 11 is respectively communicated with the outlet of the freezing capillary 14 and the port a of the first electromagnetic valve 8.
In addition, the invention can adopt a mode of a plurality of stop valves or one-way valves to replace the mode of realizing the technical proposal; however, the number of the valve elements is large, and compared with the invention, the invention has no cost and process advantages.
One specific application of this embodiment is:
when the frosting degrees of the variable temperature evaporator and the freezing evaporator are different, the variable temperature evaporator or the freezing evaporator needs to be defrosted, and the other freezing evaporator or the variable temperature evaporator does not need to be defrosted, if the variable temperature evaporator and the freezing evaporator do not have the function of defrosting or refrigerating independently, the variable temperature evaporator or the freezing evaporator is defrosted, and the other freezing evaporator or the variable temperature evaporator enters a passive defrosting state, which wastes electric energy;
when the defrosting time of the variable-temperature evaporator and the freezing evaporator is different, the defrosting of the variable-temperature evaporator or the freezing evaporator is finished, and the freezing evaporator or the variable-temperature evaporator is still in the defrosting process, so that the finishing time nodes of the variable-temperature evaporator and the freezing evaporator are inconsistent, and a precedence relationship exists, which causes the temperature of the room to rise again;
based on the above disadvantages, according to the present invention, on the basis of a refrigeration three-system in which a refrigeration evaporator and a temperature-varying evaporator are connected in parallel and are connected in series with a freezing evaporator, a first electromagnetic valve 8 with one inlet and two outlets is added at a tail end outlet of the temperature-varying evaporator, a second electromagnetic valve 12 with one inlet and two outlets is added at a front end inlet of the freezing evaporator, and the flow direction of a refrigerant is changed through the action change of the electric valve 5, the first electromagnetic valve 8 and the second electromagnetic valve 12, such that the independent defrosting of the temperature-varying evaporator 7 and the freezing evaporator 13 is achieved, the electric energy is saved, and the temperature rise of a compartment is avoided.
The invention realizes the independent defrosting of the refrigeration evaporator and the temperature-changing evaporator by switching the outlets of the first electromagnetic valve 8 and the second electromagnetic valve 12, and the control rule is as follows:
as shown in fig. 2, when the temperature-changing chamber is defrosted, the first electromagnetic valve 8 keeps the opening a open, and the second electromagnetic valve 12 keeps the opening c open; the refrigerant flows from the compressor 1 to the electric valve 5 through the freezing condensation preventing pipe 2, the condenser 3 and the filter 4 in sequence; under the action of the electric valve 5, the refrigerant flows to the refrigerating capillary 9 and the freezing capillary 14 respectively; one path of refrigerant flows to the compressor 1 through the refrigerating capillary 9, the refrigerating evaporator 10, the four-way pipe 11, the port c of the second electromagnetic valve 12 and the freezing evaporator 13 to realize refrigeration of the refrigerating chamber; the other path flows to the compressor 1 through a freezing capillary tube 14, a four-way pipe 11, a port c of a second electromagnetic valve 12 and a freezing evaporator 13, refrigerant in the other path only flows through the freezing capillary tube and a freezing chamber, and the freezing chamber can be refrigerated or not by matching with other equipment such as a freezing fan; in addition, under the action of the electric valve 5, the refrigerant can only flow through the freezing capillary tube 14, and flows to the compressor 1 through the freezing capillary tube 14, the four-way pipe 11, the port c of the second electromagnetic valve 12 and the freezing evaporator 13, so that the refrigeration of the freezing chamber is realized; therefore, when the variable temperature chamber defrosts, the refrigerating chamber and the freezing chamber can be simultaneously refrigerated or the freezing chamber can be independently refrigerated, the defrosting of the variable temperature evaporator 7 is not influenced, and the phenomena of electric energy waste and temperature rise of the chamber of the refrigerator caused by different defrosting time of the variable temperature evaporator and the variable temperature evaporator are avoided.
As shown in FIG. 3, when the freezing chamber is defrosted, the first electromagnetic valve 8 keeps the opening b unblocked, and the second electromagnetic valve 12 keeps the opening d unblocked; the refrigerant flows from the compressor 1 to the electric valve 5 through the freezing condensation preventing pipe 2, the condenser 3 and the filter 4 in sequence; under the action of the electric valve 5, the refrigerant flows to the temperature changing capillary 6 and the refrigeration capillary 9 respectively; one path of refrigerant flows to the compressor 1 through the temperature-changing capillary tube 6, the temperature-changing evaporator 7 and the port b of the first electromagnetic valve 8, so that the refrigeration of the temperature-changing chamber is realized; the other path of refrigerant flows to the compressor 1 through a refrigeration capillary tube 9, a refrigeration evaporator 10, a four-way pipe 11, a port d of a second electromagnetic valve 12, a temperature-changing evaporator 7 and a port b of a first electromagnetic valve 8, so that refrigeration of the refrigeration chamber is realized; in addition, under the action of the electric valve 5, the refrigerant can only flow to the temperature changing capillary 6, namely the refrigerant flows to the compressor 1 through the temperature changing capillary 6, the temperature changing evaporator 7 and the port b of the first electromagnetic valve 8, so that the refrigeration of the temperature changing chamber is realized; therefore, when the freezing chamber is defrosted, the variable temperature chamber can be refrigerated, the variable temperature chamber and the refrigerating chamber can be refrigerated simultaneously, and the defrosting of the freezing evaporation chamber is not influenced; the problems of electric energy waste and temperature rise of the refrigerator compartment caused by different defrosting time of the refrigerator and the freezer are avoided;
the control rules do not influence the refrigeration of the freezing chamber or the refrigeration of the refrigerating chamber and the freezing chamber simultaneously when the variable temperature evaporator 7 is defrosted; when the freezing evaporator 13 is defrosted, the variable temperature chamber refrigeration or the simultaneous refrigeration and refrigeration of the variable temperature chamber and the refrigerating chamber are not influenced; and after defrosting is finished, the compartment can be cooled, and the problem that the temperature of the compartment is too high due to waiting for defrosting of other compartment evaporators is solved.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims (2)

1. A refrigerator refrigerating system comprises a compressor (1), a freezing anti-condensation pipe (2), a condenser (3), a filter (4), an electric valve (5), a variable temperature capillary tube (6), a variable temperature evaporator (7), a refrigeration capillary tube (9), a refrigeration evaporator (10), a four-way pipe (11), a freezing evaporator (13) and a freezing capillary tube (14); the method is characterized in that: the device also comprises a first electromagnetic valve (8) and a second electromagnetic valve (12); the first electromagnetic valve (8) comprises a port a and a port b; the second electromagnetic valve (12) comprises a port c and a port d;
the compressor (1), the freezing anti-condensation pipe (2), the condenser (3), the filter (4), the electric valve (5), the variable temperature capillary tube (6), the variable temperature evaporator (7) and the port b of the first electromagnetic valve (8) are sequentially connected in series to form a loop;
the electric valve (5), the refrigeration capillary tube (9), the refrigeration evaporator (10), the four-way pipe (11), the port d of the second electromagnetic valve (12), the freezing evaporator (13) and the inlet of the compressor (1) are sequentially connected in series to form a branch;
the electric valve (5) is communicated with the port a of the first electromagnetic valve (8) through a freezing capillary tube (14) and a four-way tube (11).
2. A refrigerating system of a refrigerator as claimed in claim 1, characterized in that an opposite mouth of said cross-pipe (11) communicates with the outlet of the refrigerating evaporator (10) and the inlet of the second solenoid valve (12), respectively; the other opposite pipe orifice of the four-way pipe (11) is respectively communicated with the outlet of the freezing capillary (14) and the port a of the first electromagnetic valve (8).
CN202010171356.7A 2020-03-12 2020-03-12 Refrigerator refrigerating system Pending CN111238073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010171356.7A CN111238073A (en) 2020-03-12 2020-03-12 Refrigerator refrigerating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010171356.7A CN111238073A (en) 2020-03-12 2020-03-12 Refrigerator refrigerating system

Publications (1)

Publication Number Publication Date
CN111238073A true CN111238073A (en) 2020-06-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010171356.7A Pending CN111238073A (en) 2020-03-12 2020-03-12 Refrigerator refrigerating system

Country Status (1)

Country Link
CN (1) CN111238073A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113959162A (en) * 2021-05-13 2022-01-21 海信（山东）冰箱有限公司 Refrigerator and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113959162A (en) * 2021-05-13 2022-01-21 海信（山东）冰箱有限公司 Refrigerator and control method thereof

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