CN106885401B - Refrigerator anti-condensation refrigerating system and method and refrigerator - Google Patents
Refrigerator anti-condensation refrigerating system and method and refrigerator Download PDFInfo
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- CN106885401B CN106885401B CN201710078335.9A CN201710078335A CN106885401B CN 106885401 B CN106885401 B CN 106885401B CN 201710078335 A CN201710078335 A CN 201710078335A CN 106885401 B CN106885401 B CN 106885401B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/04—Preventing the formation of frost or condensate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a refrigerator anti-condensation refrigerating system and method and a refrigerator, wherein the system comprises a controller, a humidity sensor, an electromagnetic valve, an evaporator, a compressor, at least two condensers, an anti-condensation pipe and a capillary pipe, wherein the evaporator, the compressor, the condenser, the anti-condensation pipe and the capillary pipe are sequentially connected to form a refrigerating circulation loop; the electromagnetic valve comprises an inlet and a plurality of outlets, the inlet of the electromagnetic valve is communicated with the refrigerant outlet of the compressor, and the outlets of the electromagnetic valves are respectively communicated with the refrigerant outlets of the condensers in a one-to-one correspondence manner; the humidity sensor is used for acquiring a humidity value of the environment around the refrigerator and sending the acquired humidity value to the controller; the controller is used for receiving the humidity value and controlling the inlet and the outlet of the electromagnetic valve to be opened according to the humidity value or controlling all the outlets of the electromagnetic valve to be closed according to the humidity value. According to the invention, the on-off states of the multiple outlets of the electromagnetic valve are controlled through the humidity value fed back by the humidity sensor, so that the temperature of the anti-condensation pipe is regulated, and both anti-condensation and energy saving can be realized.
Description
Technical Field
The invention relates to the technical field of refrigerator refrigeration, in particular to a refrigerator anti-condensation refrigeration system and method and a refrigerator.
Background
Because the indoor temperature of the refrigerator is usually much lower than the ambient temperature of the refrigerator, the contact position between the refrigerator door and the doorframe often generates condensation, which causes adverse effect on the use of users. In order to solve the problem of condensation generated at the contact position of the refrigerator door and the door frame, an anti-condensation device is usually arranged in an interlayer of the door frame, and the anti-condensation device generally adopts an anti-condensation pipe. Taking a conventional direct-cooling refrigerator as an example, during refrigeration, a refrigerant sequentially passes through a first condenser, an anti-condensation pipe, a second condenser and a drying filter from a compressor, then enters an evaporator through a capillary tube, absorbs heat and is gasified, and then is absorbed back to the compressor to realize refrigeration cycle; meanwhile, the high-temperature refrigerant discharged by the compressor is used for heating the door frame, so that the surface temperature of the part easy to condense is improved, and the problem of condensation of the door frame is effectively solved. As shown in fig. 1, since the refrigerant is condensed by the first condenser, the temperature of the refrigerant entering the condensation preventing pipe is lowered, and the condensation preventing effect is not good in a high humidity environment.
Whether a refrigerator is dewed or not is mainly related to two factors, namely, the surface temperature of the refrigerator body and the relative humidity of the outside air. The refrigerator has a complex environment and various humidity of the outside air. Although most users operate the refrigerator in a non-high humidity state (relative humidity is not more than 70%) most of the time, the refrigerator generally does not generate condensation under such a condition. However, for users in Yangtze river basin and coastal areas, the maximum humidity is as high as 90% due to high humidity, especially in plum rain season, and the conventional refrigeration system works in a high humidity environment (such as plum rain season or coastal areas), and the condensation problem still occurs because the temperature of the condensation-preventing pipe cannot be increased.
In order to solve the problem of anti-condensation of the refrigerator in a high humidity environment, part of the products may adopt an improved refrigeration system as shown in fig. 2, namely: exchange first condenser and the pipeline order of preventing the condensation pipe, the refrigerant is from the compressor in proper order through preventing condensation pipe, first condenser, second condenser, drier-filter, can improve the temperature of preventing the condensation pipe to solve the condensation problem, but simultaneously because prevent that condensation pipe temperature is higher, can not adjust under conventional humidity environment, can increase refrigerator heat load, thereby arouse refrigerator power consumption to increase.
Disclosure of Invention
The invention aims to solve the technical problem of the prior art and provides a refrigerator anti-condensation refrigerating system and method and a refrigerator.
The technical scheme for solving the technical problems is as follows: a refrigerator anti-condensation refrigeration system comprises a controller, a humidity sensor, an electromagnetic valve, an evaporator, a compressor, at least two condensers, an anti-condensation pipe and a capillary, wherein the evaporator, the compressor, the at least two condensers, the anti-condensation pipe and the capillary are sequentially connected to form a refrigeration cycle loop;
the electromagnetic valve comprises an inlet and a plurality of outlets, the inlet of the electromagnetic valve is communicated with the refrigerant outlet of the compressor, and the outlets of the electromagnetic valves are respectively communicated with the refrigerant outlets of the condensers in a one-to-one correspondence manner;
the humidity sensor is used for acquiring a humidity value of the environment around the refrigerator and sending the acquired humidity value to the controller;
and the controller is used for receiving the humidity value and controlling the inlet and one outlet of the electromagnetic valve to be opened according to the humidity value, or controlling all the outlets of the electromagnetic valve to be closed according to the humidity value.
The invention has the beneficial effects that: according to the invention, the on-off states of the multiple outlets of the electromagnetic valve are controlled through the humidity value fed back by the humidity sensor, so that the temperature of the anti-condensation pipe is regulated, and the anti-condensation and energy-saving effects can be simultaneously achieved.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the controller is further configured to determine whether the humidity value is within a plurality of preset humidity ranges, the plurality of humidity ranges are not overlapped with each other, and each humidity range corresponds to one outlet;
when the humidity value is in the humidity range corresponding to one of the outlets, controlling the outlet to be opened and other outlets to be closed; and when the humidity values are not all in the plurality of humidity ranges, controlling the plurality of outlets to be closed.
The beneficial effect of adopting the further scheme is that: the on-off of the outlet is controlled by whether the humidity value is in the humidity range corresponding to the outlet of each electromagnetic valve, so that the anti-condensation effect of the refrigerator in a high-humidity environment is better; the temperature of the anti-condensation pipe can be effectively reduced in a low-humidity environment, and the power consumption of the refrigerator is improved.
Furthermore, the electromagnetic valve is a three-way valve and comprises an inlet and two outlets; the two condensers are arranged in series.
Further, the two outlets are respectively a first outlet and a second outlet, and the two condensers are respectively a first condenser and a second condenser; the evaporator, the compressor, the first condenser, the second condenser, the anti-condensation pipe and the capillary tube are sequentially connected in series to form a refrigeration cycle loop; the inlet is communicated with a refrigerant outlet of the compressor, the first outlet is communicated with a refrigerant outlet of the first condenser, and the second outlet is communicated with a refrigerant outlet of the second condenser;
the controller is also used for controlling the inlet and the first outlet to be opened and the second outlet to be closed when the humidity value is 55% -80%; when the humidity value is larger than 80%, controlling the inlet and the second outlet to be opened, and controlling the first outlet to be closed; and when the humidity value is less than 55%, controlling the first outlet and the second outlet to be closed.
The beneficial effect of adopting the further scheme is that: by setting different humidity ranges, the anti-condensation pipe is positioned at the tail ends of the two condensers of the refrigerator in a low-humidity environment, so that the energy-saving operation of the refrigerator is realized on the premise of ensuring the anti-condensation effect; under the normal humidity environment of the refrigerator, the first condenser is bypassed, the refrigerant mainly flows through the second condenser and the anti-condensation pipe, the heat exchange area of the condensation side is reduced, and the condensation temperature is increased, so that the surface temperature of the anti-condensation pipe is increased, and the anti-condensation and energy-saving effects are achieved; the refrigerator is under high humidity environment, and first condenser and second condenser all are by the bypass, and the refrigerant only flows through and prevents the condensation pipe, can obviously improve and prevent condensation pipe surface temperature, have solved the problem that the refrigerator prevents that the condensation effect is not good under the high humidity environment.
Further, a drying filter is connected between the capillary tube and the anti-condensation tube.
A method for preventing condensation by adopting the refrigerator condensation-preventing refrigerating system comprises the following steps:
s1, when the refrigerating system starts to operate, acquiring the humidity value of the environment around the refrigerator by adopting a humidity sensor;
and S2, controlling the opening of the inlet and the outlet of the solenoid valve according to the humidity value.
The invention has the beneficial effects that: according to the invention, the on-off state of the multiple outlets of the electromagnetic valve is controlled through the humidity value, so that the temperature of the anti-condensation pipe is regulated, and the anti-condensation and energy-saving effects can be simultaneously achieved.
Further, the step S2 includes determining whether the humidity value is within a plurality of preset humidity ranges, where the humidity ranges are not overlapped with each other and each humidity range corresponds to one outlet; when the humidity value is in the humidity range corresponding to one of the outlets, controlling the outlet to be opened and other outlets to be closed; and when the humidity values are not all in the plurality of humidity ranges, controlling the plurality of outlets to be closed.
The beneficial effect of adopting the further scheme is that: the on-off of the outlet is controlled by whether the humidity value is in the humidity range corresponding to the outlet of each electromagnetic valve, so that the anti-condensation effect of the refrigerator in a high-humidity environment is better; the temperature of the anti-condensation pipe can be effectively reduced in a low-humidity environment, and the power consumption of the refrigerator is improved.
Further, the electromagnetic valve is a three-way valve and comprises an inlet, a first outlet and a second outlet; the number of the condensers is two, and the two condensers are respectively a first condenser and a second condenser; the evaporator, the compressor, the first condenser, the second condenser, the anti-condensation pipe and the capillary tube are sequentially connected in series to form a refrigeration cycle loop; the inlet is communicated with a refrigerant outlet of the compressor, the first outlet is communicated with a refrigerant outlet of the first condenser, and the second outlet is communicated with a refrigerant outlet of the second condenser;
s2 further includes, when the humidity value is within 55-80%, controlling the inlet and the first outlet to be opened, and the second outlet to be closed, entering a first cooling mode; when the humidity value is larger than 80%, controlling the inlet and the second outlet to be opened, closing the first outlet, and entering a second refrigeration mode; and when the humidity value is less than 55%, controlling the first outlet and the second outlet to be closed, and entering a third refrigeration mode.
The beneficial effect of adopting the further scheme is that: by setting different humidity ranges, the anti-condensation pipe is positioned at the tail ends of the two condensers of the refrigerator in a low-humidity environment, so that the energy-saving operation of the refrigerator is realized on the premise of ensuring the anti-condensation effect; under the normal humidity environment of the refrigerator, the first condenser is bypassed, the refrigerant mainly flows through the second condenser and the anti-condensation pipe, the heat exchange area of the condensation side is reduced, and the condensation temperature is increased, so that the surface temperature of the anti-condensation pipe is increased, and the anti-condensation and energy-saving effects are achieved; the refrigerator is under high humidity environment, and first condenser and second condenser all are by the bypass, and the refrigerant only flows through and prevents the condensation pipe, can obviously improve and prevent condensation pipe surface temperature, have solved the problem that the refrigerator prevents that the condensation effect is not good under the high humidity environment.
A refrigerator comprises the anti-condensation refrigerating system of the refrigerator.
The invention has the beneficial effects that: the refrigerator has better condensation prevention effect in a high-humidity environment, can effectively reduce the temperature of the condensation prevention pipe in a low-humidity environment, and improves the power consumption of the refrigerator.
Drawings
FIG. 1 is a schematic view of a connection structure of an embodiment of a conventional anti-condensation refrigeration system;
FIG. 2 is a schematic view of a connection structure of another embodiment of a conventional anti-condensation refrigeration system;
fig. 3 is a schematic view of a connection structure of the condensation preventing system according to the present embodiment;
FIG. 4 is a schematic diagram of a connection structure between the controller and the humidity sensor and the solenoid valve according to the present embodiment;
FIG. 5 is a block flow diagram of the anti-condensation refrigeration method of the present embodiment;
fig. 6 is a control flowchart of the condensation prevention refrigeration method according to the present embodiment.
In the drawings, the components represented by the respective reference numerals are listed below:
1. an evaporator; 2. a compressor; 3. a condensation prevention pipe; 4. a first condenser; 5. a second condenser; 6. drying the filter; 7. a capillary tube; 8. an electromagnetic valve; 81. an inlet; 82. a first outlet; 83. a second outlet; 9. a controller; 10. a humidity sensor.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
Example 1
As shown in fig. 3-4, the anti-condensation refrigeration system for a refrigerator of the present embodiment includes a controller 9, a humidity sensor 10, an electromagnetic valve 8, an evaporator 1, a compressor 2, a plurality of condensers, an anti-condensation tube 3, and a capillary tube 7, where the evaporator 1, the compressor 2, the plurality of condensers, the anti-condensation tube 3, and the capillary tube 7 are sequentially connected to form a refrigeration cycle; a refrigerant flows through the refrigeration cycle.
The electromagnetic valve 8 comprises an inlet 81 and a plurality of outlets, the inlet 81 of the electromagnetic valve 8 is communicated with the refrigerant outlet of the compressor 2, and the outlets of the electromagnetic valves 8 are respectively communicated with the refrigerant outlets of the condensers in a one-to-one correspondence manner;
the humidity sensor 10 is used for acquiring a humidity value of the environment around the refrigerator and sending the acquired humidity value to the controller 9;
the controller 9 is configured to receive the humidity value and control the opening of the inlet 81 and the outlet of the solenoid valve 8 according to the humidity value.
The on-off state of a plurality of exports of solenoid valve is controlled to the humidity value that this embodiment fed back through humidity transducer, and then adjusts the temperature of preventing the condensation pipe, can compromise simultaneously and prevent dew and energy-conservation.
The controller 9 of this embodiment is further configured to determine whether the humidity value is within a plurality of preset humidity ranges, where the humidity ranges are not overlapped with each other and each humidity range corresponds to one outlet; when the humidity value is in the humidity range corresponding to one of the outlets, controlling the outlet to be opened and other outlets to be closed; and when the humidity values are not all in the plurality of humidity ranges, controlling the plurality of outlets to be closed. The on-off of the outlet is controlled by whether the humidity value is in the humidity range corresponding to the outlet of each electromagnetic valve, so that the anti-condensation effect of the refrigerator in a high-humidity environment is better; the temperature of the anti-condensation pipe can be effectively reduced in a low-humidity environment, and the power consumption of the refrigerator is improved.
The electromagnetic valves 8 in this embodiment may be three-way valves or four-way valves, that is, when the electromagnetic valves are three-way valves, the number of outlets of the electromagnetic valves 8 is two; when the electromagnetic valve 8 is a four-way valve, the number of the outlets of the electromagnetic valve 8 is three.
As shown in fig. 3 and 4, the solenoid valve 8 of the present embodiment is preferably a three-way valve, and includes an inlet 81 and two outlets; the two condensers are arranged in series. The two outlets of the solenoid valve 8 of the present embodiment are respectively a first outlet 82 and a second outlet 83, and the two condensers are respectively a first condenser 4 and a second condenser 5; the evaporator 1, the compressor 2, the first condenser 4, the second condenser 5, the anti-condensation pipe 3 and the capillary 7 are sequentially connected in series to form a refrigeration cycle loop; the inlet 81 is communicated with a refrigerant outlet of the compressor 2, the first outlet 82 is communicated with a refrigerant outlet of the first condenser 4, and the second outlet 83 is communicated with a refrigerant outlet of the second condenser 5;
the controller 9 is further configured to control the inlet 81 and the first outlet 82 to be opened and the second outlet 83 to be closed when the humidity value is 55% -80%; when the humidity value is greater than 80%, controlling the inlet 81 and the second outlet 83 to be opened, and the first outlet 82 to be closed; when the humidity value is less than 55%, the first outlet 82 and the second outlet 83 are controlled to be closed.
The humidity range and the on-off relationship between the inlet and the outlet of the solenoid valve in this embodiment are shown in the specific graph 1.
TABLE 1 relationship between different humidity ranges and the on-off of the inlet and outlet of the solenoid valve
| Range of humidity | Mode of operation | An inlet | First outlet | Second outlet |
| ＜55％ | A | ON | OFF | OFF |
| 55％～80％ | II | ON | ON | OFF |
| ＞80％ | III | ON | OFF | ON |
As shown in table 1, in the refrigerator of this embodiment, under the low humidity (< 55%) environment, the solenoid valve 8 is in the first operating mode, and the condensation preventing pipe 3 is located at the ends of the first condenser 4 and the second condenser 5, so that the refrigerator can operate in an energy-saving manner on the premise of ensuring the condensation preventing effect. The refrigerator is under conventional humidity (55% ~ 80%) environment, and solenoid valve 8 is in mode two, and first condenser 4 is by-passed, and the refrigerant mainly flows through second condenser 5, prevents condensation pipe 3, and condensation side heat transfer area reduces, and the condensation temperature risees to can improve and prevent the surface temperature of condensation pipe 3, compromise the condensation function of preventing of refrigerator and save the power consumption function. The refrigerator is under high humidity (> 80%) environment, and solenoid valve 8 is in mode three, and first condenser 4 and second condenser 5 are all by the bypass, and the refrigerant only flows through and prevents condensation pipe 3, can obviously improve and prevent condensation pipe 3 surface temperature, solves the refrigerator and prevents the not good problem of condensation effect under the high humidity environment.
When the electromagnetic valve is in the third working mode, the temperature of the anti-condensation pipe is high, the pressure of the condensation side of the whole refrigerator refrigerating system is high, the reliability of the refrigerating system is not facilitated, and the adjustability can be improved by adopting a mode of alternately operating the first working mode, the second working mode and the third working mode. For example, when the refrigeration system starts to operate, the humidity value of the environment around the refrigerator is collected to be 85%, then the operation mode is selected to start to operate, after the refrigeration system operates for a first preset time, the refrigeration system automatically switches to enter the first operation mode or the second operation mode, after the refrigeration system operates for a second preset time, the humidity value of the environment around the refrigerator is collected again, and the operation mode is automatically selected, so that the circulation alternate operation of the three operation modes is ensured.
In the embodiment, the different humidity ranges are set, so that the anti-condensation pipe is positioned at the tail ends of the two condensers of the refrigerator in a low-humidity environment, and the energy-saving operation of the refrigerator is realized on the premise of ensuring the anti-condensation effect; under the normal humidity environment of the refrigerator, the first condenser is bypassed, the refrigerant mainly flows through the second condenser and the anti-condensation pipe, the heat exchange area of the condensation side is reduced, and the condensation temperature is increased, so that the surface temperature of the anti-condensation pipe is increased, and the anti-condensation and energy-saving effects are achieved; the refrigerator is under high humidity environment, and first condenser and second condenser all are by the bypass, and the refrigerant only flows through and prevents the condensation pipe, can obviously improve and prevent condensation pipe surface temperature, have solved the problem that the refrigerator prevents that the condensation effect is not good under the high humidity environment.
As shown in fig. 3, a dry filter 6 is connected between the capillary tube 7 and the condensation preventing tube 3 in the present embodiment.
Example 2
As shown in fig. 6, a method for preventing condensation by using the refrigerator condensation-prevention refrigeration system according to embodiment 1 of this embodiment includes the following steps:
s1, when the refrigerating system starts to operate, acquiring the humidity value of the environment around the refrigerator by adopting a humidity sensor;
and S2, controlling the opening of the inlet and the outlet of the solenoid valve according to the humidity value.
The S2 further includes determining whether the humidity value is within a plurality of preset humidity ranges, where the humidity ranges are not overlapped with each other and each humidity range corresponds to one outlet; when the humidity value is in the humidity range corresponding to one of the outlets, controlling the outlet to be opened and other outlets to be closed; and when the humidity values are not all in the plurality of humidity ranges, controlling the plurality of outlets to be closed. The on-off of the outlet is controlled by whether the humidity value is in the humidity range corresponding to the outlet of each electromagnetic valve, so that the anti-condensation effect of the refrigerator in a high-humidity environment is better; the temperature of the anti-condensation pipe can be effectively reduced in a low-humidity environment, and the power consumption of the refrigerator is improved.
As shown in fig. 3, the solenoid valve of the present embodiment is a three-way valve, and includes an inlet, a first outlet, and a second outlet; the number of the condensers is two, and the two condensers are respectively a first condenser and a second condenser; the evaporator, the compressor, the first condenser, the second condenser, the anti-condensation pipe and the capillary tube are sequentially connected in series to form a refrigeration cycle loop; the inlet is communicated with a refrigerant outlet of the compressor, the first outlet is communicated with a refrigerant outlet of the first condenser, and the second outlet is communicated with a refrigerant outlet of the second condenser;
as shown in fig. 4-6, the S2 of this embodiment specifically includes, when the humidity value is within 55% -80%, controlling the inlet and the first outlet to be opened, and the second outlet to be closed, and entering the first cooling mode; when the humidity value is larger than 80%, controlling the inlet and the second outlet to be opened, closing the first outlet, and entering a second refrigeration mode; and when the humidity value is less than 55%, controlling the first outlet and the second outlet to be closed, and entering a third refrigeration mode. By setting different humidity ranges, the anti-condensation pipe is positioned at the tail ends of the two condensers of the refrigerator in a low-humidity environment, so that the energy-saving operation of the refrigerator is realized on the premise of ensuring the anti-condensation effect; under the normal humidity environment of the refrigerator, the first condenser is bypassed, the refrigerant mainly flows through the second condenser and the anti-condensation pipe, the heat exchange area of the condensation side is reduced, and the condensation temperature is increased, so that the surface temperature of the anti-condensation pipe is increased, and the anti-condensation and energy-saving effects are achieved; the refrigerator is under high humidity environment, and first condenser and second condenser all are by the bypass, and the refrigerant only flows through and prevents the condensation pipe, can obviously improve and prevent condensation pipe surface temperature, have solved the problem that the refrigerator prevents that the condensation effect is not good under the high humidity environment.
Example 3
The refrigerator of the embodiment comprises the refrigerator anti-condensation refrigeration system of the embodiment 1. The refrigerator of this embodiment prevents under the high humidity environment that the condensation effect is better, can effectively reduce the temperature of preventing the condensation pipe under low humidity environment, improves the power consumption of refrigerator.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A refrigerator anti-condensation refrigerating system is characterized by comprising a controller (9), a humidity sensor (10), an electromagnetic valve (8), an evaporator (1), a compressor (2), at least two condensers connected in series, an anti-condensation pipe (3) and a capillary (7), wherein the evaporator (1), the compressor (2), the at least two condensers, the anti-condensation pipe and the capillary (7) are sequentially connected to form a refrigerating circulation loop;
the electromagnetic valve (8) comprises an inlet (81) and a plurality of outlets, the inlet (81) of the electromagnetic valve (8) is communicated with the refrigerant outlet of the compressor (2), and the outlets of the electromagnetic valves (8) are respectively communicated with the refrigerant outlets of the condensers in a one-to-one correspondence manner;
the humidity sensor (10) is used for collecting a humidity value of the environment around the refrigerator and sending the collected humidity value to the controller (9);
the controller (9) is used for receiving the humidity value and controlling the inlet (81) and one outlet of the solenoid valve (8) to be opened according to the humidity value or controlling all outlets of the solenoid valve to be closed according to the humidity value;
the controller is further configured to determine whether the humidity value is within a plurality of preset humidity ranges, the plurality of humidity ranges are not overlapped with each other, and each humidity range corresponds to one outlet;
when the humidity value is within the humidity range corresponding to one of the outlets, controlling the outlet to be opened, and other outlets to be closed, and entering a working mode N, wherein N is more than one; when the humidity values are not in the humidity ranges, controlling the outlets to be closed, and entering a first working mode; and the adjustment is improved by adopting a mode of alternately operating different working modes.
2. The anti-condensation refrigerating system of claim 1, wherein the solenoid valve (8) is a three-way valve comprising one inlet (81) and two outlets; the two condensers are arranged in series.
3. The anti-condensation refrigerating system of claim 2, wherein the two outlets are a first outlet (82) and a second outlet (83), respectively, and the two condensers are a first condenser (4) and a second condenser (5), respectively; the evaporator (1), the compressor (2), the first condenser (4), the second condenser (5), the anti-condensation pipe (3) and the capillary tube (7) are sequentially connected in series to form a refrigeration cycle loop; the inlet (81) is communicated with a refrigerant outlet of the compressor (2), the first outlet (82) is communicated with a refrigerant outlet of the first condenser (4), and the second outlet (83) is communicated with a refrigerant outlet of the second condenser (5);
the controller (9) is also used for controlling the inlet (81) and the first outlet (82) to be opened and the second outlet (83) to be closed when the humidity value is 55% -80%; when the humidity value is greater than 80%, controlling the inlet (81) and the second outlet (83) to be opened, and the first outlet (82) to be closed; controlling both the first outlet (82) and the second outlet (83) to be closed when the humidity value is less than 55%.
4. A refrigerator anti-condensation cooling system according to any of claims 1 to 3, characterized in that a dry filter (6) is connected between the capillary tube (7) and the anti-condensation tube (3).
5. A method for preventing condensation by using the anti-condensation refrigeration system of the refrigerator as claimed in any one of claims 1 to 4, comprising the steps of:
s1, when the refrigerating system starts to operate, acquiring the humidity value of the environment around the refrigerator by adopting a humidity sensor;
s2, controlling the opening of the inlet and the outlet of the solenoid valve according to the humidity value;
the step S2 further includes determining whether the humidity value is within a plurality of preset humidity ranges, where the humidity ranges are not overlapped with each other and each humidity range corresponds to one outlet; when the humidity value is within the humidity range corresponding to one of the outlets, controlling the outlet to be opened, and other outlets to be closed, and entering a working mode N, wherein N is more than one; when the humidity values are not in the humidity ranges, controlling the outlets to be closed, and entering a first working mode; and the adjustment is improved by adopting a mode of alternately operating different working modes.
6. A method according to claim 5, characterized in that the solenoid valve (8) is a three-way valve comprising an inlet (81), a first outlet (82) and a second outlet (83); the number of the condensers is two, and the two condensers are respectively a first condenser (4) and a second condenser (5); the evaporator (1), the compressor (2), the first condenser (4), the second condenser (5), the anti-condensation pipe (3) and the capillary tube (7) are sequentially connected in series to form a refrigeration cycle loop; the inlet (81) is communicated with a refrigerant outlet of the compressor (2), the first outlet (82) is communicated with a refrigerant outlet of the first condenser (4), and the second outlet (83) is communicated with a refrigerant outlet of the second condenser (5);
s2 further includes, when the humidity value is within 55-80%, controlling the inlet (81) and the first outlet (82) to be opened, and the second outlet (83) to be closed, entering a first cooling mode; when the humidity value is larger than 80%, controlling the inlet (81) and the second outlet (83) to be opened, and controlling the first outlet (82) to be closed to enter a second refrigeration mode; and when the humidity value is less than 55%, controlling the first outlet (82) and the second outlet (83) to be closed, and entering a third refrigeration mode.
7. A refrigerator characterized by comprising the refrigerator anti-condensation refrigeration system of any one of claims 1 to 4.
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| CN201710078335.9A CN106885401B (en) | 2017-02-14 | 2017-02-14 | Refrigerator anti-condensation refrigerating system and method and refrigerator |
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| CN108709359A (en) * | 2018-06-22 | 2018-10-26 | 合肥美菱股份有限公司 | A kind of multi-functional anti-condensation pipe of refrigerator |
| CN109210849A (en) * | 2018-08-14 | 2019-01-15 | 安徽康佳同创电器有限公司 | A kind of adjustable refrigeration system and refrigerator |
| CN110285595B (en) * | 2019-06-12 | 2021-09-21 | 合肥美的电冰箱有限公司 | Refrigerating system and refrigerating equipment with same |
| CN113669938B (en) * | 2021-07-27 | 2023-03-14 | 澳柯玛股份有限公司 | Refrigerator refrigeration and self-cleaning control method |
| CN115265071B (en) * | 2022-08-25 | 2023-08-29 | 海信冰箱有限公司 | Operation control method of refrigerator and condensation system |
| DE102022127314A1 (en) | 2022-10-18 | 2024-04-18 | Hefei Hualing Co., Ltd. | Cooling unit for a refrigerator |
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