CN108278832B - Internet of things refrigerator with defrosting function and working method thereof - Google Patents
Internet of things refrigerator with defrosting function and working method thereof Download PDFInfo
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- CN108278832B CN108278832B CN201810409554.5A CN201810409554A CN108278832B CN 108278832 B CN108278832 B CN 108278832B CN 201810409554 A CN201810409554 A CN 201810409554A CN 108278832 B CN108278832 B CN 108278832B
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- temperature
- defrosting
- control valve
- refrigerator
- sensor
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- 238000010257 thawing Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims description 7
- 238000005057 refrigeration Methods 0.000 claims description 12
- 230000006855 networking Effects 0.000 claims description 3
- 230000008014 freezing Effects 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 description 4
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
Images
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
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
- F25D2700/123—Sensors measuring the inside temperature more than one sensor measuring the inside temperature in a compartment
-
- 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)
- Defrosting Systems (AREA)
Abstract
The invention discloses an Internet of things refrigerator with a defrosting function, which comprises a shell forming an electromechanical cavity, a compressor, a condenser, an evaporator and a capillary tube are arranged in the electromechanical cavity, a freezing chamber and a refrigerating chamber are arranged in the shell, it is characterized in that the outlet of the compressor is respectively connected with the inlet of the condenser and the inlet of the evaporator, the outlet of the condenser is connected with the inlet of the evaporator through a capillary tube, the outlet of the evaporator is connected with the inlet of the compressor, a first control valve is arranged between the outlet of the compressor and the inlet of the condenser, a second control valve is arranged between the outlet of the compressor and the outlet of the condenser, the main control panel controls the refrigerator to switch between a defrosting mode and a refrigerating mode according to a control signal of a remote control center, the defrosting mode first control valve is closed, the second control valve is opened, and the refrigerating mode first control valve is opened, and the second control valve is closed.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to an Internet of things refrigerator with a defrosting function and a working method thereof.
Background
In the existing refrigerator, the working time of a compressor is generally accumulated, defrosting is determined by fixed time, and defrosting is often started at improper time due to simple detection.
The existing defrosting usually adopts a natural temperature rise mode, and because the temperature rise is very slow, when frost is removed, the temperature of food in the refrigerator is also higher, so that the breeding of bacteria can not be effectively prevented.
Disclosure of Invention
The invention provides an Internet of things refrigerator with a defrosting function, which can effectively calculate a defrosting node, thereby effectively saving energy, has short defrosting time and effectively prevents bacteria from breeding.
The utility model provides a thing networking refrigerator with defrosting function, is including forming electromechanical cavity's casing, be equipped with compressor, condenser, evaporimeter and capillary in the electromechanical cavity, be equipped with freezer and walk-in the casing, the compressor export respectively with condenser entry, evaporimeter access connection, the export of condenser is through the access connection of capillary and evaporimeter, the entry of the exit linkage compressor of evaporimeter, be equipped with first control valve between compressor export and the condenser entry, be equipped with the second control valve between compressor export and the condenser export, the main control board is according to the control signal control refrigerator of remote control center at defrosting mode and refrigeration mode switching, the first control valve of defrosting mode closes the second control valve and opens, the first control valve of refrigeration mode opens the second control valve and closes.
Furthermore, a first temperature sensor is arranged in the refrigerating chamber of the refrigerator, a second temperature sensor is arranged at the inlet of the evaporator, and a third temperature sensor is arranged at the outlet of the evaporator.
Further, the main control board determines the frosting coefficient according to the temperature information detected by the sensor
Wherein T 'is the temperature detected by the third temperature sensor, T' is the temperature detected by the second sensor, T is the temperature detected by the first sensor, n is the current time, KaAnd the compensation coefficient of the door opening temperature is shown, T is the door opening time, and T0 is the outdoor temperature.
Further, said K>1.5 calculating the interval t between the defrosting time and the last defrosting timeaAnd the temperature information is summed with taTransmitted to a remote server which compares the data t transmitted by the refrigeratoraAverage interval t from historybRatio of (Kt, Kt)<And 0.3, judging the judgment by mistake, not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server, enabling the refrigerator to enter a defrosting mode, and storing temperature data information and t by the remote servera。
A working method of an Internet of things refrigerator with a defrosting function comprises the following steps:
A. the first control valve opens the second control valve and closes, and the refrigerator works in a refrigerating mode;
B. the first temperature sensor, the second temperature sensor and the third temperature sensor respectively detect the temperature T of the refrigerating chamber, the inlet T 'of the evaporator and the outlet T' of the evaporator in real time;
C. the main control board calculates the frosting coefficient according to the data detected by the sensor
Wherein T 'is the temperature detected by the third temperature sensor, T' is the temperature detected by the second sensor, T is the temperature detected by the first sensor, n is the current time, KaAnd the compensation coefficient of the door opening temperature is shown, T is the door opening time, and T0 is the outdoor temperature.
D. The main control board judges whether K is larger than 1.5, if so, the interval t between the defrosting time and the last defrosting time is calculatedaAnd the temperature information is summed with taTransmitting to the remote server, otherwise returning to the step C;
E. the remote server compares the data t transmitted by the refrigeratoraAverage interval t from historybRatio of (Kt, Kt)<0.3, judging the judgment by mistake, and not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server;
F. remote server save taAnd recalculates the historical average defrost interval tb；
G. The first control valve closes and the second control valve opens, and the refrigerator is switched to a defrosting mode;
H. and after defrosting is finished, switching to a refrigeration mode.
By adopting the technical scheme of the invention, the invention has the following technical effects:
because the refrigerator is equipped with defrosting mode and refrigeration mode, when according with the refrigeration condition, remote center passes through signal control refrigerator and defrosts, not only can effectively calculate the defrosting node to effective energy saving, the defrosting time is short moreover, effectively prevents breeding of bacterium.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural diagram of the first embodiment.
Fig. 2 is a schematic diagram of a defrosting and refrigerating structure according to the first embodiment.
FIG. 3 is a flowchart of a first embodiment.
The device comprises a shell 1, an electromechanical cavity 2, a compressor 21, a condenser 22, an evaporator 23, a capillary tube 24, a dry filter 25, a main control panel 26, a freezing chamber 3, a refrigerating chamber 4, a first control valve 5 and a second control valve 6.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
The first embodiment is as follows:
as shown in fig. 1-3, an thing networking refrigerator with defrosting function, including the casing 1 that forms electromechanical cavity 2, be equipped with compressor 21, condenser 22, evaporimeter 23 and capillary 24 in the electromechanical cavity 2, be equipped with freezer 3 and walk-in 4 in the casing 1, the compressor export respectively with condenser entry, evaporimeter access connection, the export of condenser is through the access connection of capillary and evaporimeter, the entry of the exit linkage compressor of evaporimeter, be equipped with first control valve 5 between compressor export and the condenser entry, be equipped with second control valve 6 between compressor export and the condenser export, main control board 26 switches at defrosting mode and refrigeration mode according to remote control center's control signal control refrigerator.
In the refrigeration mode, the first control valve 5 opens the second control valve 6 and closes, high-temperature and high-pressure gas from the compressor 21 is liquefied through the condenser 22, then enters the evaporator 23 through the capillary tube 24 and the drying filter 25, and is gasified to absorb heat and then returns to the compressor 21.
In the defrosting mode, the first control valve closes and the second control valve opens, high-temperature and high-pressure gas from the compressor 21 enters the evaporator, and high-temperature gas returns to the compressor after being radiated by the evaporator. Because the defrosting is started from the inside, when the defrosting is finished, the outside temperature just begins to rise, and therefore, the breeding of bacteria caused by high food temperature can be effectively prevented.
Because the defrosting and the refrigerating share the assembly, a heater is not required to be additionally arranged, the space is effectively saved, and the cost is reduced.
A first temperature sensor 41 is arranged in the refrigerating chamber of the refrigerator, a second temperature sensor 71 is arranged at the inlet of the evaporator, and a third temperature sensor 72 is arranged at the outlet of the evaporator.
The main control board determines the frosting coefficient according to the temperature information detected by the sensor
Wherein T 'is the temperature detected by the third temperature sensor, T' is the temperature detected by the second sensor, T is the temperature detected by the first sensor, n is the current time, KaAnd the compensation coefficient of the door opening temperature is shown, T is the door opening time, and T0 is the outdoor temperature.
When K is>1.5, calculating the interval t between the defrosting time and the last defrosting timeaAnd the temperature information is summed with taTransmitted to a remote server which compares the data t transmitted by the refrigeratoraAverage interval t from historybRatio of (Kt, Kt)<And 0.3, judging the judgment by mistake, not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server, enabling the refrigerator to enter a defrosting mode, and storing temperature data information and t by the remote servera。
The frosting coefficient K is calculated by comprehensively considering the temperature of the refrigerating chamber and the temperature difference of gas in the evaporator, so that the calculation of the critical point of defrosting is more accurate, the energy loss caused by early defrosting can be prevented, and the low refrigeration efficiency caused by untimely defrosting can be effectively prevented.
A working method of an Internet of things refrigerator with a defrosting function comprises the following steps:
A. the first control valve opens the second control valve and closes, and the refrigerator works in a refrigerating mode;
B. the first temperature sensor, the second temperature sensor and the third temperature sensor respectively detect the temperature T of the refrigerating chamber, the inlet T 'of the evaporator and the outlet T' of the evaporator in real time;
C. the main control board calculates the frosting coefficient according to the data detected by the sensor
Where T 'is the temperature detected by the third temperature sensor, T' is the temperature detected by the second sensor, and T is the temperature detected by the first sensorDegree, n is the current time, KaAnd the compensation coefficient of the door opening temperature is shown, T is the door opening time, and T0 is the outdoor temperature.
D. The main control board judges whether K is larger than 1.5, if so, the interval t between the defrosting time and the last defrosting time is calculatedaAnd the temperature information is summed with taTransmitting to the remote server, otherwise returning to the step C;
E. the remote server compares the data t transmitted by the refrigeratoraAverage interval t from historybRatio of (Kt, Kt)<0.3, judging the judgment by mistake, and not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server;
F. remote server save taAnd recalculates the historical average defrost interval tb；
G. The first control valve closes and the second control valve opens, and the refrigerator is switched to a defrosting mode;
H. and after defrosting is finished, switching to a refrigeration mode.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (2)
1. The utility model provides a thing networking refrigerator with defrosting function, is including the casing that forms electromechanical cavity, be equipped with compressor, condenser, evaporimeter and capillary in the electromechanical cavity, be equipped with freezer and walk-in the casing, a serial communication port, the compressor export respectively with condenser entry, evaporimeter access connection, the export of condenser is through the entry linkage of capillary and evaporimeter, the entry of the exit linkage compressor of evaporimeter, be equipped with first control valve between compressor export and the condenser entry, be equipped with the second control valve between compressor export and the condenser export, the main control board switches over the refrigerator at defrosting mode and refrigeration mode according to remote control center's control signal control refrigeratorThe first control valve of the defrosting mode closes the second control valve and opens, the first control valve of the refrigeration mode opens the second control valve and closes, be equipped with first temperature sensor in the refrigerator walk-in, the entry of evaporimeter is equipped with second temperature sensor, and the export of evaporimeter is equipped with third temperature sensor, the main control board confirms the coefficient of frosting according to the temperature information that the sensor detected
Wherein
Is the temperature detected by the third temperature sensor,
is the temperature detected by the second sensor, T is the temperature detected by the first sensor, n is the current time,
for the compensation coefficient of door opening temperature, T is door opening time, T0 is outdoor temperature, K>1.5 calculating the interval between the defrosting time and the last defrosting time
And the temperature information is combined with
Transmitting to a remote server, the remote server comparing the data transmitted by the refrigerator
Average interval between defrost and history
Ratio of (Kt, Kt)<And 0.3, judging the judgment by mistake, not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server, and entering the refrigeratorDefrost mode, remote server saving temperature data information and
。
2. the operation method of the internet of things refrigerator according to claim 1, wherein: the method comprises the following steps:
A. the first control valve opens the second control valve and closes, and the refrigerator works in a refrigerating mode;
B. the first temperature sensor, the second temperature sensor and the third temperature sensor respectively detect the temperature T of the refrigerating chamber and the inlet of the evaporator in real time
Evaporator outlet temperature
;
C. The main control board calculates the frosting coefficient according to the data detected by the sensor
Wherein
Is the temperature detected by the third temperature sensor,
is the temperature detected by the second sensor, T is the temperature detected by the first sensor, n is the current time,
is the door opening temperature compensation coefficient, T is the door opening time, T0 is the outdoor temperature,
D. the main control board judges whether K is larger than 1.5, if so, the interval between the defrosting time and the last defrosting time is calculated
And the temperature information is combined with
Transmitting to the remote server, otherwise returning to the step C;
E. the remote server compares the data transmitted by the refrigerator
Average interval between defrost and history
Ratio of (Kt, Kt)<0.3, judging the judgment by mistake, and not sending a defrosting instruction, otherwise, sending the defrosting instruction to the refrigerator by the remote server;
F. remote server saving
And recalculate the historical average defrost interval
；
G. The first control valve closes and the second control valve opens, and the refrigerator is switched to a defrosting mode;
H. and after defrosting is finished, switching to a refrigeration mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409554.5A CN108278832B (en) | 2018-05-02 | 2018-05-02 | Internet of things refrigerator with defrosting function and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810409554.5A CN108278832B (en) | 2018-05-02 | 2018-05-02 | Internet of things refrigerator with defrosting function and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108278832A CN108278832A (en) | 2018-07-13 |
| CN108278832B true CN108278832B (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810409554.5A Active CN108278832B (en) | 2018-05-02 | 2018-05-02 | Internet of things refrigerator with defrosting function and working method thereof |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873447B (en) * | 2019-11-29 | 2021-11-12 | 深圳麦克维尔空调有限公司 | Defrosting control method, device and equipment of refrigeration air conditioner |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231844A (en) * | 1991-01-26 | 1993-08-03 | Samsung Electronics Co., Ltd. | Defrost control method for refrigerator |
| CN2161880Y (en) * | 1993-05-04 | 1994-04-13 | 陈展元 | Frost removal for refrigerator |
| CN104613688A (en) * | 2015-01-23 | 2015-05-13 | 西安交通大学 | Hot air defrosting system for refrigerator and control method of hot air defrosting system |
-
2018
- 2018-05-02 CN CN201810409554.5A patent/CN108278832B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5231844A (en) * | 1991-01-26 | 1993-08-03 | Samsung Electronics Co., Ltd. | Defrost control method for refrigerator |
| CN2161880Y (en) * | 1993-05-04 | 1994-04-13 | 陈展元 | Frost removal for refrigerator |
| CN104613688A (en) * | 2015-01-23 | 2015-05-13 | 西安交通大学 | Hot air defrosting system for refrigerator and control method of hot air defrosting system |
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| CN108278832A (en) | 2018-07-13 |
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