CN115265071B - Operation control method of refrigerator and condensation system - Google Patents
Operation control method of refrigerator and condensation system Download PDFInfo
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- CN115265071B CN115265071B CN202211025085.XA CN202211025085A CN115265071B CN 115265071 B CN115265071 B CN 115265071B CN 202211025085 A CN202211025085 A CN 202211025085A CN 115265071 B CN115265071 B CN 115265071B
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- 238000009833 condensation Methods 0.000 title claims abstract description 39
- 230000005494 condensation Effects 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005057 refrigeration Methods 0.000 abstract description 20
- 230000007613 environmental effect Effects 0.000 abstract description 10
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 230000017525 heat dissipation Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 230000008014 freezing Effects 0.000 description 9
- 238000007710 freezing Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 9
- 230000006872 improvement Effects 0.000 description 8
- 230000006870 function Effects 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000011555 saturated liquid Substances 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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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
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
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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
- F25B39/00—Evaporators; Condensers
- F25B39/04—Condensers
-
- 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
- F25B49/027—Condenser control arrangements
-
- 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
-
- 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/02—Humidity
-
- 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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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)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an operation control method of a refrigerator and a condensation system. The refrigerator comprises a refrigerating system, wherein a condensing system in the refrigerating system consists of an internal condenser and an external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer side of the refrigerator. After the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained; determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated; and controlling the condensing system to operate according to the working mode. By adopting the technical means of the invention, the working mode of the condensing system is intelligently controlled according to the environmental information, thereby effectively meeting the requirements of high-efficiency refrigeration and energy conservation of the refrigerator under different working conditions and improving the quality of the refrigerator.
Description
Technical Field
The invention relates to the technical field of refrigerator control, in particular to an operation control method of a refrigerator and a condensation system.
Background
With the increasing quality of life of people, refrigerators have become indispensable equipment in daily life, and in the operation process of refrigerators, heat dissipation of the refrigerators is one of key links. The heat dissipation of the condenser of the conventional air-cooled refrigerator is generally two ways, namely an internal condenser and an external condenser, and referring to fig. 1, the heat dissipation of the condenser is a schematic diagram of a refrigerating system pipeline of the air-cooled refrigerator with an internal side plate condenser in the prior art. The traditional air-cooled refrigerator adopts a condenser with a built-in side plate for heat dissipation, and a refrigerating system comprises a compressor, a freezing defrosting pipe, a built-in condenser, a freezing evaporator, an air return pipe and a drying filter which are sequentially connected, wherein the built-in condenser is a U-shaped heat exchange coil pipe and is attached to the left inner side plate and the right inner side plate of the refrigerator; referring to fig. 2, a schematic diagram of a refrigeration system pipeline of an air-cooled refrigerator with an external bottom condenser in the prior art is shown, the traditional air-cooled refrigerator uses the external bottom condenser to dissipate heat, and the refrigeration system comprises a compressor, a condenser fan, the external condenser, a freezing dew removing pipe, a drying filter, an air return pipe and an evaporator which are sequentially connected. Wherein, condenser fan and external condenser are arranged in refrigerator outside bottom.
However, the inventors found that the prior art has at least the following problems: the built-in condenser has low heat dissipation efficiency, cannot realize effective heat dissipation when the ambient temperature is high, so that the outlet temperature of the condenser is high, the refrigerator consumes electricity greatly, the temperature of a side plate is easily high, and the user experience is influenced; meanwhile, the built-in condenser has higher requirements on heat dissipation space, and the side surfaces of the refrigerator are required to have enough heat dissipation distances from the side walls at two sides, so that when the two sides of the refrigerator are closer to the side walls, the effective heat dissipation cannot be realized, the outlet temperature of the condenser is high, the side plates scald hands, and the refrigerator consumes much electricity. The heat dissipation efficiency of the external condenser is higher than that of the internal condenser, the requirements on the size of the two sides of the refrigerator on the side wall are not high, but the side wall of the refrigerator adopting the external condenser is not provided with a condenser pipe, so that the problem of condensation is easy to occur on the side wall of the refrigerator under the high humidity environment, particularly the refrigerator which is embedded in the refrigerator, the two sides of the refrigerator are closer to the wall surface of the cabinet, the air flow property is poor, the side surface of the refrigerator adopting the external condenser is easier to generate the phenomenon of condensation under the high humidity environment, and serious problems such as mildew of the wall surface of the cabinet can be even caused.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and an operation control method of a condensing system, which can intelligently control the working mode of the condensing system according to environmental information, effectively meet the requirements of high-efficiency refrigeration and energy conservation of the refrigerator under different working conditions, and improve the quality of the refrigerator.
To achieve the above object, an embodiment of the present invention provides a refrigerator including:
the refrigerating system comprises a condensation system and an external condenser, wherein the condensation system in the refrigerating system consists of the internal condenser and the external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer part of the refrigerator;
a controller for:
after the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained;
determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
and controlling the condensing system to operate according to the working mode.
As an improvement of the above solution, the determining the working mode of the condensation system according to the ambient temperature and the ambient humidity specifically includes:
when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
and when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
As an improvement of the scheme, the internal condenser is provided with an internal replacement heat pipe, and the external condenser is provided with an air cooler and an external replacement heat pipe;
the refrigerator further comprises an electromagnetic valve, an inlet of the electromagnetic valve is an inlet of the condensing system, a first outlet of the electromagnetic valve is connected with an inlet of the built-in heat exchange tube, a second outlet of the electromagnetic valve is connected with an inlet of the air cooler, an outlet of the inner replacement heat tube is connected with an inlet of the air cooler, an outlet of the air cooler is connected with an inlet of the external heat exchange tube, and an outlet of the outer replacement heat tube is an outlet of the condensing system.
As an improvement of the above scheme, when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensation system is that the internal condenser and the external condenser are operated simultaneously, specifically:
when the ambient humidity is greater than or equal to a preset humidity threshold, controlling the inlet of the electromagnetic valve to be communicated with the first outlet, and disconnecting the inlet of the electromagnetic valve from the second outlet, wherein the air cooler starts to operate.
As an improvement of the above solution, when the ambient humidity is less than the preset humidity threshold and the ambient temperature is greater than or equal to a preset first temperature threshold, determining that the working mode of the condensation system is that the external condenser is operated independently, specifically includes:
when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is larger than or equal to a preset first temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be connected, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler starts to operate.
As an improvement of the above solution, when the ambient humidity is less than the preset humidity threshold and the ambient temperature is greater than or equal to a preset first temperature threshold, controlling the inlet and the second outlet of the electromagnetic valve to be connected, and disconnecting the inlet and the first outlet of the electromagnetic valve, and the air cooler starts to operate, the method specifically includes:
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset second temperature threshold, controlling an inlet of the electromagnetic valve to be communicated with a second outlet, disconnecting the inlet of the electromagnetic valve from a first outlet, and starting the air cooler to operate at a first rotational speed;
when the ambient humidity is smaller than the preset humidity threshold value, the ambient temperature is larger than or equal to the preset first temperature threshold value and smaller than the preset second temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be conducted, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler is started to operate at a second rotating speed;
wherein the second temperature threshold is greater than the first temperature threshold and the first rotational speed is greater than the second rotational speed.
As an improvement of the above solution, when the ambient humidity is less than the preset humidity threshold and the ambient temperature is less than the preset first temperature threshold, determining that the working mode of the condensation system is that the built-in condenser is operated independently, specifically includes:
when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is smaller than the preset first temperature threshold value, the inlet and the first outlet of the electromagnetic valve are controlled to be conducted, the inlet and the second outlet of the electromagnetic valve are disconnected, and the air cooler stops running.
As an improvement of the scheme, after the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained, and the method specifically comprises the following steps:
after the refrigerator is electrified, the condensation system is controlled to operate according to a working mode that the internal condenser and the external condenser operate simultaneously;
when the refrigerator is operated to a stable state, the current ambient temperature and the current ambient humidity are obtained every preset time.
The embodiment of the invention also provides an operation control method of the condensing system, which is applied to the refrigerating system of the refrigerator, wherein the condensing system consists of an internal condenser and an external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer part of the refrigerator;
the method comprises the following steps:
after the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained;
determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
and controlling the condensing system to operate according to the working mode.
As an improvement of the above solution, the determining the working mode of the condensation system according to the ambient temperature and the ambient humidity specifically includes:
when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
and when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
Compared with the prior art, the refrigerator and the operation control method of the condensing system are disclosed in the embodiment of the invention. The refrigerator comprises a refrigerating system, wherein a condensing system in the refrigerating system consists of an internal condenser and an external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer side of the refrigerator. After the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained; determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated; and controlling the condensing system to operate according to the working mode. By adopting the technical means of the embodiment of the invention, the working mode of the condensing system is intelligently controlled by the combination of the internal condenser and the external condenser through the ambient temperature and the ambient humidity, so that the negative influence of the current ambient temperature and the ambient humidity on the operation of the refrigerator and the use of a user can be better avoided, the quality of the refrigerator is improved, the high-efficiency refrigerating performance of the refrigerator under different environmental working conditions can be ensured, the energy-saving requirement on the refrigerator is met, and the use experience of the user is effectively improved.
Drawings
FIG. 1 is a schematic diagram of a refrigeration system of an air-cooled refrigerator with a side plate condenser built in the prior art;
FIG. 2 is a schematic diagram of a refrigeration system pipeline of an air-cooled refrigerator with an external bottom condenser in the prior art;
fig. 3 is a schematic structural view of a refrigerator according to an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a controller according to a first embodiment of the present invention;
FIG. 5 is a schematic flow chart of a controller in a second implementation manner according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a refrigeration system pipeline of a refrigerator according to an embodiment of the present invention;
fig. 7 is a schematic view of a refrigerating system of a refrigerator according to an embodiment of the present invention;
FIG. 8 is a schematic flow chart of a controller in a third embodiment of the present invention;
FIG. 9 is a schematic flow chart of a controller in a fourth embodiment of the present invention;
FIG. 10 is a schematic diagram of a determination process of different operating environment conditions according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 3, a schematic structural diagram of a refrigerator according to an embodiment of the present invention is provided, and the refrigerator includes at least one storage chamber, such as a refrigerating chamber and/or a freezing chamber, for storing articles having fresh-keeping or freezing requirements, and a refrigerating system for performing a refrigerating operation of the refrigerator, and providing cold energy to be transferred into the storage chamber of the refrigerator by the refrigerating system, so that the storage chamber is maintained in a constant low-temperature state.
The refrigerating system comprises a condensing system 1 for realizing the condensing and heat dissipating functions of the refrigerator. In particular, the condensation system 1 is composed of an internal condenser 11 and an external condenser 12, the internal condenser 11 being provided inside the refrigerator, the external condenser 12 being provided outside the refrigerator.
The refrigerator further comprises a controller 2 for performing information acquisition, calculation analysis, control instruction issuing and the like for each part of the refrigerator. Specifically, referring to fig. 4, which is a schematic flow chart of the controller in the first embodiment of the present invention, the controller 2 is configured to execute steps S11 to S13:
s11, after the refrigerator is electrified, acquiring the current ambient temperature and the current ambient humidity;
s12, determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
s13, controlling the condensing system to operate according to the working mode.
In the embodiment of the invention, after the refrigerator is powered on, the controller 2 acquires the current ambient temperature T and the current ambient humidity U in real time. In an alternative embodiment, the refrigerator is provided with a temperature sensor and a humidity sensor, which are respectively used for detecting the current ambient temperature T and the current ambient humidity U, and sending the detection results to the controller 2 in real time.
The controller 2 performs comprehensive analysis according to the currently acquired ambient temperature T and ambient humidity U to determine whether the working mode of the condensing system 1 is operated independently by the external condenser 12 or independently by the internal condenser 11 or jointly by the internal condenser 11 and the external condenser 12, and controls the condensing system 1 to operate according to the determined working mode, thereby completing the heat dissipation function of the refrigerator.
As a preferred embodiment, step S11, namely, after the refrigerator is powered on, obtains the current ambient temperature and ambient humidity, specifically:
s111, after the refrigerator is electrified, controlling the condensing system to operate according to a working mode that the internal condenser and the external condenser operate simultaneously;
and S112, when the refrigerator is operated to a stable state, acquiring the current ambient temperature and the current ambient humidity every preset time.
In the embodiment of the present invention, after the refrigerator is powered on and operates, the internal condenser 11 and the external refrigerator 12 are controlled to operate simultaneously, until the temperature control sensors of the compartments of the refrigerator, such as the refrigerating compartment, the freezing compartment, the temperature changing compartment, etc., reach the set temperature stop point, the refrigerator is determined to enter a stable state, and at this time, the controller 2 obtains the current ambient temperature T and the current ambient humidity U to determine the working mode of the condensation system 1. And, the controller 2 acquires the ambient temperature T and the ambient humidity U once every a preset time period T, thereby updating the current operation mode of the condensing system 1.
For example, the preset time period t is set to 60min, and of course, the preset time period t may be set according to actual situations, which is not limited herein.
The embodiment of the invention provides a refrigerator, wherein a condensing system of the refrigerator consists of an internal condenser and an external condenser, and the current ambient temperature and the current ambient humidity are obtained after the refrigerator is electrified; and determining the working mode of the condensing system according to the ambient temperature and the ambient humidity, wherein the working mode comprises that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated, so that the condensing system is controlled to operate according to the working mode. By adopting the technical means of the embodiment of the invention, the working mode of the condensing system is intelligently controlled by the combination of the internal condenser and the external condenser through the ambient temperature and the ambient humidity, so that the negative influence of the current ambient temperature and the ambient humidity on the operation of the refrigerator and the use of a user can be better avoided, the quality of the refrigerator is improved, the high-efficiency refrigerating performance of the refrigerator under different environmental working conditions can be ensured, the energy-saving requirement on the refrigerator is met, and the use experience of the user is effectively improved.
As a preferred implementation manner, the embodiment of the present invention is further implemented on the basis of the foregoing embodiment, and referring to fig. 5, a schematic flow diagram of the controller in the second implementation manner in the embodiment of the present invention is shown. Step S12, namely, determining the working mode of the condensation system according to the ambient temperature and the ambient humidity, specifically includes steps S121 to S123:
s121, when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
s122, when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
s123, when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
In the embodiment of the invention, a humidity threshold U is preset S1 And a first temperature threshold T S1 To characterize the magnitude of the values of ambient humidity and ambient temperature. Optionally, the humidity threshold U S1 Set to 75%, a first temperature threshold T S1 Set to 20 ℃. Of course, the humidity threshold U S1 And a first temperature threshold T S1 The values of (2) can be adjusted and set according to the actual application conditions, and the beneficial effects obtained by the invention are not affected.
After acquiring the current ambient temperature T and the current ambient humidity U, the controller 2 judges the magnitudes of the ambient temperature T and the ambient humidity U, and if the current ambient temperature T and the current ambient humidity U meet the requirement that U is more than or equal to U S1 Indicating that the current environment humidity is higher, the refrigerator operates under the severe condition of high humidity,the side plate of the refrigerator has high condensation risk, and the mode that the pipelines of the internal side condenser 11 and the external condenser 12 are connected in series and work simultaneously is adopted, so that the heat dissipation efficiency of the refrigerator can be effectively improved, and the side plate of the refrigerator can be effectively prevented from being condensed. If U < U is satisfied S1 And further judging the ambient temperature, if T is more than or equal to T S1 The refrigerator has the advantages that the current environment humidity is low, the environment temperature is moderate and high, the refrigerator is operated at medium and high temperature under the condition of common humidity, the condensation risk of the side plate of the refrigerator is low, the heat dissipation requirement is high, the external condenser 12 is adopted to work independently, the effective heat dissipation of the refrigerator can be ensured, and the energy and electricity saving can be realized. If T is less than T S1 The refrigerator has the advantages that the current environment humidity and the environment temperature are lower, the refrigerator operates under the conditions of low ambient temperature and common humidity, the condensation risk of the side plates of the refrigerator is lower, the heat dissipation requirement is low, the effective heat dissipation of the refrigerator can be ensured by adopting a mode that the built-in condenser 11 works independently, the refrigerating performance of the refrigerator is ensured, and the mute work of the refrigerator is realized because the external condenser fan does not rotate noise.
By adopting the technical means of the embodiment of the invention, the specific working mode of the refrigerator condensation system is determined according to different environmental temperature and environmental humidity conditions, so that the high-efficiency refrigeration performance and quality of the refrigerator under different environmental working conditions are ensured, and good use experience is provided for users.
As a preferred implementation manner, the embodiment of the present invention is further implemented on the basis of the above embodiment, the internal condenser 11 is provided with an internal replacement heat pipe 111, the external condenser 12 is provided with an air cooler 121 and an external heat exchange pipe 122, the refrigerator further includes a solenoid valve 3, the solenoid valve 3 includes an inlet and two outlets, which are a first outlet and a second outlet respectively, and the solenoid valve 3 is used for controlling the connection and disconnection of different condensation branches in the condensation system 1, so as to realize the switching of different working modes of the condensation system.
Specifically, referring to fig. 6 and 7, fig. 6 is a schematic diagram of a refrigeration system pipeline of a refrigerator according to an embodiment of the present invention, and fig. 7 is a schematic diagram of a refrigeration system principle of a refrigerator according to an embodiment of the present invention. The refrigerating system of the refrigerator consists of a compressor 4, a condensing system 1, a freezing dew removing pipe 5, a drying filter 6, a capillary tube 7, an evaporator 8 and an air return pipe 9. The electromagnetic valve 3 is arranged between the compressor 4 and the condensing system 1, the inlet of the battery valve 3 is the inlet of the condensing system 1, the first outlet of the electromagnetic valve 3 is connected with the inlet of the built-in heat exchange tube 111, the second outlet of the electromagnetic valve 3 is connected with the inlet of the air cooler 121, the outlet of the built-in heat exchange tube 11 is also connected with the inlet of the air cooler 121, the outlet of the air cooler 121 is connected with the inlet of the external heat exchange tube 122, and the outlet of the external heat exchange tube 122 is the outlet of the condensing system 1. Preferably, the second outlet of the electromagnetic valve 3, the outlet of the built-in heat exchange tube 111 and the inlet of the air cooler 121 are connected by adopting a three-way connecting tube.
Thus, the refrigeration system forms two refrigeration loops, and in the first refrigeration loop, a compressor 4, an internal heat exchange tube 111, an air cooler 121, an external heat exchange tube 122, a freezing dew removing tube 5, a dry filter 6, a capillary tube 7, an evaporator 8 and an air return tube 9 are sequentially and circularly connected; in the second refrigeration circuit, a compressor 4, an air cooler 121, an external heat exchange tube 122, a freezing dew removing tube 5, a dry filter 6, a capillary tube 7, an evaporator 8 and an air return tube 9 are sequentially and circularly connected.
The working components of the refrigeration system include a compression process, a condensation process, a throttling process and an evaporation process. The compression process comprises the following steps: a refrigerator power line is inserted, under the condition that the refrigerator body has refrigeration requirement, the compressor starts to work, low-temperature and low-pressure refrigerant is sucked by the compressor, and the refrigerant is compressed into high-temperature and high-pressure superheated gas in a compressor cylinder and then is discharged into a condensing system; the condensation process is as follows: the high-temperature and high-pressure refrigerant gas is radiated by a condensing system, the temperature is continuously reduced, the refrigerant gas is gradually cooled into normal-temperature and high-pressure saturated vapor, the saturated vapor is further cooled into saturated liquid, the temperature is not reduced any more, and the temperature at the moment is called condensing temperature. The pressure of the refrigerant is almost unchanged in the whole condensation process; the throttling process is as follows: the condensed refrigerant saturated liquid is filtered by a drying filter to remove moisture and impurities, and then flows into a capillary tube, throttling and depressurization are carried out through the capillary tube, and the refrigerant is changed into wet vapor at normal temperature and low pressure; the evaporation process is as follows: the subsequent vaporization begins by absorbing heat within the evaporator, not only reducing the temperature of the evaporator and its surroundings, but also turning the refrigerant into a low temperature, low pressure gas. The refrigerant from the evaporator returns to the compressor again, and the above process is repeated, so that the heat in the refrigerator is transferred to the air outside the refrigerator, and the purpose of refrigeration is achieved.
On the basis of the above refrigerating system structure, after the refrigerator is powered on, the inlet of the electromagnetic valve 3 is controlled to be conducted with the first outlet, the inlet of the electromagnetic valve 3 is controlled to be disconnected with the second outlet, the heat exchange pipeline systems of the external condenser 12 and the internal condenser 11 are connected in series and work simultaneously, and the air cooler 121 runs at a low rotation speed.
Further, referring to fig. 8, a schematic flow chart of the controller in the third embodiment of the present invention is shown, and step S121 specifically includes: when the ambient humidity is greater than or equal to a preset humidity threshold, controlling the inlet of the electromagnetic valve to be communicated with the first outlet, and disconnecting the inlet of the electromagnetic valve from the second outlet, wherein the air cooler starts to operate.
The step S122 specifically includes: when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is larger than or equal to a preset first temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be connected, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler starts to operate.
The step S123 specifically includes: when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is smaller than the preset first temperature threshold value, the inlet and the first outlet of the electromagnetic valve are controlled to be conducted, the inlet and the second outlet of the electromagnetic valve are disconnected, and the air cooler stops running.
Specifically, when the internal condenser 11 and the external condenser 12 are controlled to operate simultaneously, the inlet of the electromagnetic valve 3 is controlled to be communicated with the first outlet, the inlet of the electromagnetic valve 3 is controlled to be disconnected with the second outlet, the air cooler 121 is controlled to start to operate, at this time, the first refrigeration loop is conducted, and the heat exchange pipelines of the internal condenser 11 and the external condenser 12 are connected in series to jointly realize the condensation heat dissipation function. Preferably, the air cooler 121 operates at a low rotational speed.
When the external condenser 12 is controlled to operate independently, the inlet of the electromagnetic valve 3 is controlled to be communicated with the second outlet, the inlet of the electromagnetic valve 3 is controlled to be disconnected with the first outlet, the air cooler 121 is controlled to start to operate, at the moment, the second refrigeration loop is controlled to be communicated, and only the external condenser 12 realizes the condensation heat dissipation function.
When the built-in condenser 11 is controlled to independently operate, the inlet of the control electromagnetic valve 3 is communicated with the first outlet, the inlet of the electromagnetic valve 3 is disconnected with the second outlet, the air cooler 121 is controlled to stop operating, at the moment, the first refrigeration loop is communicated, the heat exchange pipeline of the built-in condenser 11 and the heat exchange pipeline of the external condenser 12 are connected in series, but the air cooler 121 does not operate, and only the built-in condenser 11 realizes the condensation heat dissipation function.
More preferably, the second temperature threshold T is preset S2 And T is S2 ＞T S1 And the operation speed of the air cooler 121 includes preset high and low speeds, respectively denoted as a first speed R1 and a second speed R2, R1 > R2.
Referring to fig. 9, a schematic flow chart of the controller in the fourth embodiment of the present invention is shown, and in step S122, the method includes:
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset second temperature threshold, controlling an inlet of the electromagnetic valve to be communicated with a second outlet, disconnecting the inlet of the electromagnetic valve from a first outlet, and starting the air cooler to operate at a first rotational speed;
when the ambient humidity is smaller than the preset humidity threshold value, the ambient temperature is larger than or equal to the preset first temperature threshold value and smaller than the preset second temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be conducted, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler is started to operate at a second rotating speed;
specifically, in the operation mode in which the external condenser 12 is operated alone, when U < U is satisfied S1 And T > T S2 When the temperature and humidity of the refrigerator are lower, the ambient temperature is higher, the condensation risk of the side plate of the refrigerator is lower, the heat dissipation requirement is relatively higher, the external condenser 12 is controlled to work independently, the air cooler 121 is started to operate at a high rotating speed R1, and the heat dissipation efficiency of the refrigerator is guaranteed. When U is smaller than U S1 And T is S1 ≤T＜T S2 When the temperature and humidity of the refrigerator are lower, the ambient temperature is moderate, the condensation risk of the side plate of the refrigerator is lower, the heat dissipation requirement is relatively lower, the external condenser 12 is controlled to work independently, the air cooler 121 is started to operate at a low rotating speed R2, the refrigerator can effectively dissipate heat, and the effects of energy conservation, electricity saving and lower noise are achieved.
Under a specific application scene, dividing into four running environment conditions according to the current environment temperature T and the current environment humidity U, wherein the four running environment conditions are respectively as follows: setting a humidity threshold U under severe conditions of high humidity, high-temperature ordinary humidity, medium-temperature ordinary humidity and low-temperature ordinary humidity S1 First temperature threshold T S1 And a second temperature threshold T S2 . Optionally U S1＝ 75％，T S1 ＝20℃，T S2 ＝37℃。
The temperature sensor and the humidity sensor of the refrigerator detect the ambient temperature T and the ambient humidity U once every a preset time period T. Preferably, to prevent the sensor measurement error, the temperature sensor is set to continuously detect the environmental temperature value for 3 times, denoted as T1, T2, T3, and the humidity sensor is set to continuously detect the environmental humidity value for 3 times, denoted as U1, U2, U3. Referring to fig. 10, a schematic diagram of a judging flow of different operating environment conditions in the embodiment of the present invention, according to the data collected by the temperature sensor and the humidity sensor, the control modes of the refrigerator condenser are divided into the following four modes according to the following judging rules:
1) High humidity severe mode: if the conditions U1, U2 and U3 are all more than or equal to 75%, judging that the refrigerator is in a high-humidity severe condition;
2) High temperature normal humidity mode: u1, U2 and U3 are all less than 75%, and T1, T2 and T3 are all more than or equal to 37 ℃, and the refrigerator is judged to be in a high-temperature common humidity condition;
3) Medium temperature normal humidity mode: u1, U2 and U3 are all less than 75 percent, and T1, T2 and T3 are all less than 37 ℃ and are all less than 20 ℃ and the refrigerator is judged to be in a medium-temperature common humidity condition;
4) Low temperature normal humidity mode: u1, U2 and U3 are all less than 75%, and T1, T2 and T3 are all less than 20 ℃, and then the refrigerator is judged to be in a low-temperature common humidity condition.
The mode of operation of the condensation system 1 is controlled as follows:
1) High humidity severe mode: an inlet of the control electromagnetic valve 3 is communicated with the first outlet, heat exchange pipeline systems of the external condenser 12 and the internal condenser 11 are connected in series and work simultaneously, and the air cooler 121 runs at a low rotating speed;
2) High temperature normal humidity mode: the inlet of the control electromagnetic valve 3 is communicated with the second outlet, the external condenser 12 works independently, and the air cooler 121 runs at a high rotating speed;
3) Medium temperature normal humidity mode: the inlet of the control electromagnetic valve 3 is communicated with the second outlet, the external condenser 12 works independently, and the air cooler 121 runs at a low rotating speed;
4) Low temperature normal humidity mode: the inlet of the control electromagnetic valve 3 is communicated with the first outlet, the heat exchange pipeline systems of the external condenser 12 and the internal condenser 11 are connected in series, the air cooler 121 does not operate, and the internal condenser 12 works independently.
By adopting the technical means of the embodiment of the invention, the structure of the condensing system is improved, the condensing heat dissipation mode of combining the external condenser and the internal condenser is adopted, the trend of different condensing branches in the condensing system is intelligently controlled according to the ambient temperature and the ambient humidity, the specific working mode of the condensing system of the refrigerator is determined, and the high-efficiency refrigerating performance and quality of the refrigerator under different ambient working conditions are ensured.
The embodiment of the invention also provides an operation control method of the condensing system, which is applied to the refrigerating system of the refrigerator, wherein the condensing system consists of an internal condenser and an external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer part of the refrigerator;
the operation control method of the condensing system includes steps S21 to S23:
s21, after the refrigerator is electrified, acquiring the current ambient temperature and the current ambient humidity;
s22, determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
s23, controlling the condensing system to operate according to the working mode.
Preferably, step S22, that is, determining the working mode of the condensation system according to the ambient temperature and the ambient humidity specifically includes:
when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
and when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
By adopting the technical means of the embodiment of the invention, the working mode of the condensing system is intelligently controlled by the combination of the internal condenser and the external condenser through the ambient temperature and the ambient humidity, so that the negative influence of the current ambient temperature and the ambient humidity on the operation of the refrigerator and the use of a user can be better avoided, the quality of the refrigerator is improved, the high-efficiency refrigerating performance of the refrigerator under different environmental working conditions can be ensured, the energy-saving requirement on the refrigerator is met, and the use experience of the user is effectively improved.
It should be noted that, the operation control method of the condensation system provided by the embodiment of the present invention is the same as all the steps of the flow executed by the controller of the refrigerator in the above embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that the description is omitted.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-only memory (ROM), a random access memory (RandomAccessMemory, RAM), or the like.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (8)
1. A refrigerator, comprising:
the refrigerating system comprises a condensation system and an external condenser, wherein the condensation system in the refrigerating system consists of the internal condenser and the external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer part of the refrigerator;
a controller for:
after the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained;
determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
controlling the condensing system to operate according to the working mode;
the determining the working mode of the condensing system according to the ambient temperature and the ambient humidity specifically includes:
when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
and when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
2. The refrigerator as claimed in claim 1, wherein the internal condenser is provided with an internal heat exchange tube, and the external condenser is provided with an air cooler and an external heat exchange tube;
the refrigerator further comprises an electromagnetic valve, an inlet of the electromagnetic valve is an inlet of the condensing system, a first outlet of the electromagnetic valve is connected with an inlet of the built-in heat exchange tube, a second outlet of the electromagnetic valve is connected with an inlet of the air cooler, an outlet of the inner replacement heat tube is connected with an inlet of the air cooler, an outlet of the air cooler is connected with an inlet of the external heat exchange tube, and an outlet of the outer replacement heat tube is an outlet of the condensing system.
3. The refrigerator as claimed in claim 2, wherein the operation mode of the condensing system is determined as the internal condenser and the external condenser operating simultaneously when the ambient humidity is equal to or higher than a preset humidity threshold, specifically:
when the ambient humidity is greater than or equal to a preset humidity threshold, controlling the inlet of the electromagnetic valve to be communicated with the first outlet, and disconnecting the inlet of the electromagnetic valve from the second outlet, wherein the air cooler starts to operate.
4. The refrigerator of claim 2, wherein when the ambient humidity is less than the preset humidity threshold and the ambient temperature is greater than or equal to a preset first temperature threshold, determining that the condensation system is in a working mode that the external condenser is operated independently, specifically:
when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is larger than or equal to a preset first temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be connected, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler starts to operate.
5. The refrigerator of claim 4, wherein when the ambient humidity is less than the preset humidity threshold and the ambient temperature is greater than or equal to a preset first temperature threshold, the inlet of the electromagnetic valve is controlled to be connected with the second outlet, the inlet of the electromagnetic valve is disconnected with the first outlet, and the air cooler is started to operate, specifically comprising:
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset second temperature threshold, controlling an inlet of the electromagnetic valve to be communicated with a second outlet, disconnecting the inlet of the electromagnetic valve from a first outlet, and starting the air cooler to operate at a first rotational speed;
when the ambient humidity is smaller than the preset humidity threshold value, the ambient temperature is larger than or equal to the preset first temperature threshold value and smaller than the preset second temperature threshold value, the inlet and the second outlet of the electromagnetic valve are controlled to be conducted, the inlet and the first outlet of the electromagnetic valve are disconnected, and the air cooler is started to operate at a second rotating speed;
wherein the second temperature threshold is greater than the first temperature threshold and the first rotational speed is greater than the second rotational speed.
6. The refrigerator of claim 2, wherein when the ambient humidity is less than the preset humidity threshold and the ambient temperature is less than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is operated independently, specifically is:
when the ambient humidity is smaller than the preset humidity threshold value and the ambient temperature is smaller than the preset first temperature threshold value, the inlet and the first outlet of the electromagnetic valve are controlled to be conducted, the inlet and the second outlet of the electromagnetic valve are disconnected, and the air cooler stops running.
7. The refrigerator according to any one of claims 1 to 6, wherein the current ambient temperature and humidity are obtained after the refrigerator is powered on, specifically:
after the refrigerator is electrified, the condensation system is controlled to operate according to a working mode that the internal condenser and the external condenser operate simultaneously;
when the refrigerator is operated to a stable state, the current ambient temperature and the current ambient humidity are obtained every preset time.
8. The operation control method of the condensing system is characterized by being applied to a refrigerating system of a refrigerator, wherein the condensing system consists of an internal condenser and an external condenser, the internal condenser is arranged on the inner side of the refrigerator, and the external condenser is arranged on the outer side of the refrigerator;
the method comprises the following steps:
after the refrigerator is electrified, the current ambient temperature and the current ambient humidity are obtained;
determining a working mode of the condensing system according to the ambient temperature and the ambient humidity; the working mode is that the external condenser is independently operated, or the internal condenser and the external condenser are simultaneously operated;
controlling the condensing system to operate according to the working mode;
the determining the working mode of the condensing system according to the ambient temperature and the ambient humidity specifically includes:
when the ambient humidity is greater than or equal to a preset humidity threshold, determining that the working mode of the condensing system is that the internal condenser and the external condenser operate simultaneously;
when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is larger than or equal to a preset first temperature threshold, determining that the working mode of the condensing system is that the external condenser is independently operated;
and when the ambient humidity is smaller than the preset humidity threshold and the ambient temperature is smaller than the preset first temperature threshold, determining that the working mode of the condensing system is that the built-in condenser is independently operated.
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