CN110044115A - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- CN110044115A CN110044115A CN201810040004.0A CN201810040004A CN110044115A CN 110044115 A CN110044115 A CN 110044115A CN 201810040004 A CN201810040004 A CN 201810040004A CN 110044115 A CN110044115 A CN 110044115A
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- Prior art keywords
- temperature
- article
- refrigerator
- generating module
- controller
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
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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
- F25D29/00—Arrangement or mounting of control or safety devices
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/16—Sensors measuring the temperature of products
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
A kind of refrigerator includes a heat-insulated cavity, a cold generating module, an infrared sensor and a controller.Heat-insulated cavity includes an ice greenhouse, to accommodate an at least article.Infrared sensor is set in ice greenhouse, to sense a surface temperature of article, and exports a corresponding temperature signal.Controller and infrared sensor and cold generating module are electrically connected, and to receive temperature signal, and the surface temperature control cold generating module according to article switches to a cooling pattern or a maintenance mode.Above-mentioned refrigerator can be such that the surface temperature of article quickly reduces under cooling pattern, and switch to maintenance mode when the surface temperature of article reaches target temperature and maintain in a target temperature range, too low to avoid article temperature and excessively freeze.
Description
[technical field]
The present invention is a kind of related refrigerator, especially a kind of fast cooling and to maintain the ice near a solidification point
Case.
[background technique]
Known domestic refrigerator includes refrigerating chamber and freezing chamber mostly.The temperature of refrigerating chamber about maintains 5 degree Celsius
To 7 degree, food can be leniently saved, but the time saved is relatively short.The temperature of freezing chamber about maintains -18 degree Celsius
To -20 degree, food can save to the relatively long time, but because food is freezing state, it is subsequent boil or cut need elder generation
By food thawing, thus cause the inconvenience in user's processing.
In order to overcome the above problem, one ice greenhouse of additional designs, temperature about maintain 1 degree Celsius to commercially available refrigerator
Extremely -1 degree or 0 degree of extremely -3 degree or lower Celsius.The storage temperature of ice greenhouse is lower than the storage temperature of refrigerating chamber, therefore food
The holding time for being stored in ice greenhouse is long compared with refrigerating chamber is stored in.In addition, the storage temperature of ice greenhouse will not make food freeze or
Only microfreeze, therefore, the food for being stored in ice greenhouse can be boiled or be cut without thawing, and the place of user is conducive to
Reason.It is excessively high to avoid temperature and influence food it is understood that the storage temperature of ice greenhouse need to maintain an accurate range
Holding time or temperature is too low to cause food to freeze and the processing of unfavorable user.
In order to quickly reduce food temperature, it is known that the temperature sensing control of ice greenhouse be using contact type temperature sensor
(such as thermistor) directly senses the temperature of food, freezes to avoid food.It is well known, however, that ice greenhouse design be that will contact
Formula temperature sensor is set to the chassis of ice greenhouse, and therefore, the packaging (especially foamed material) of food will affect temperature sensing
Precision.
In view of this, how quickly to reduce near food temperature a to solidification point and it is avoided to freeze is that current pole needs
The target of effort.
[summary of the invention]
The present invention provides a kind of refrigerator, is that an at least infrared sensor is arranged to sense ice greenhouse in a non-contact manner
The surface temperature of interior article, then the surface temperature control cold generating module of foundation article maintain mode in a cooling pattern and one
Between switch so that the surface temperature of article can be reduced rapidly to the target temperature near solidification point, and maintain one
In target temperature range.
The refrigerator of one embodiment of the invention includes a heat-insulated cavity, a cold generating module, an infrared sensor and a control
Device processed.Heat-insulated cavity includes an ice greenhouse, to accommodate an at least article.Cold generating module is connect with heat-insulated cavity, to reduce ice temperature
An indoor cavity temperature.Infrared sensor is set in ice greenhouse, to sense a surface temperature of article, and output phase pair
The temperature signal answered.Controller and infrared sensor and cold generating module are electrically connected, to receive temperature signal, and foundation
The surface temperature control cold generating module of article switches to a cooling pattern or a maintenance mode, makes the surface temperature of article in quickly cooling
It quickly reduces under mode and is maintained in a target temperature range under maintenance mode.
The schema elaborate appended by specific embodiment cooperation below, when being easier to understand the purpose of the present invention, skill
Art content, feature and its it is reached the effect of.
[Detailed description of the invention]
Fig. 1 is a schematic diagram, shows the refrigerator of one embodiment of the invention.
Fig. 2 is a flow chart, shows that the refrigerator of one embodiment of the invention controls a cold generating module in a cooling pattern and one-dimensional
It holds and switches between mode.
Fig. 3 is a schematic diagram, shows the infrared sensor of one embodiment of the invention.
Fig. 4 is a schematic diagram, shows the infrared sensor of another embodiment of the present invention.
[symbol description]
The heat-insulated cavity of 11a, 11b
111 ice greenhouses
121 compressors
122 condensers
123 evaporators
124a, 124b fan
13a, 13b temperature sensor
13c infrared sensor
131 thermopile sensors
131 ' infrared ray array sensor chips
131a thermoelectric pile sensing component
131a ' infrared ray array sensing component
131b lens
131c thermistor
132,132 ' signal processor
132a signal amplifier
132b bias resistance
132c signal multiplexer
132d analog-to-digital converter
132e microcontroller
132f non-voltile memory
132g communication interface
14 controllers
141 timers
15 detectors
20 articles
PSS pixel selection signal
SS1, SS2 sensing signal
S31~S36 step
TS temperature signal
θ senses visual angle
[specific embodiment]
It will be described various embodiments of the present invention below, and cooperate schema as illustration.Other than multiple detailed description,
The present invention also can be widely performed in other embodiments, and the substitution easily of any embodiment, modification, equivalence changes are all
Within the scope of the present invention, and it is subject to claim.In the description of specification, in order to make reader to the present invention
There is more complete understanding, provides many specific details；However, the present invention may be before clipped or whole specific details
It puts, it is still implementable.Moreover, it is well known that the step of or component be not described in details, to avoid to the present invention formed not
Necessary limitation.Same or similar component will be indicated in schema with same or like symbol.It is specifically intended that schema is only
For the use of signal, the not actual size of proxy component or quantity, some details may not drawn completely, in the hope of the letter of schema
It is clean.
Please refer to Fig. 1, the refrigerator of one embodiment of the invention include at least one heat-insulated cavity 11a, 11b, a cold generating module,
One infrared sensor 13c and a controller 14.Heat-insulated cavity 11a, 11b are to accommodate an at least article 20, such as food.
In embodiment shown in FIG. 1, heat-insulated cavity be it is multiple, for example, heat-insulated cavity 11a is used as freezing chamber；Heat-insulated cavity
11b is used as refrigerating chamber.In addition, heat-insulated cavity 11b includes an ice greenhouse 111, to accommodate an at least article 20.
Cold generating module is connect with heat-insulated cavity 11a, 11b, to reduce in heat-insulated cavity 11a, 11b and ice greenhouse 111
One cavity temperature.For example, cold generating module include a compressor 121, a condenser 122, an expansion valve (not shown) and
One evaporator 123.It is understood that evaporator 123 can be multiple according to different designs.Refrigerant is compressed through compressor 121
Become the gaseous coolant of high temperature and pressure afterwards, after the liquid refrigerants of normal temperature high voltage is condensed into through condenser 122, after expansion valve
The as liquid refrigerants of low-temp low-pressure.Finally, 123 vaporizing refrigerant of evaporator makes refrigerant temperature be able to further decrease and restores
At gaseous coolant.Heat exchange is carried out compared with the air in the refrigerant of low temperature and heat-insulated cavity 11a, 11b and ice greenhouse 111
Take away the thermal energy in heat-insulated cavity 11a, 11b and ice greenhouse 111.Gaseous coolant, which returns compressor 121 and compress, lays equal stress on
Multiple above-mentioned steps are i.e. Ke Xunhuanliyong, to gradually decrease the cavity temperature in heat-insulated cavity 11a, 11b and ice greenhouse 111.It causes
The detailed schematic of cold module is known to persond having ordinary knowledge in the technical field of the present invention, and non-is of the invention main
Technical characteristic, therefore details are not described herein.In an embodiment, compressor 121 can be an inverter compressor.It is understood that
It is that cold generating module may include fan 124a, a 124b, promotes heat-insulated cavity 11a, 11b and ice temperature by fan 124a, 124b
Air flowing in room 111 can further increase the effect of heat exchange.
Infrared sensor 13c is set in ice greenhouse 111, and senses a surface temperature of article 20 in a non-contact manner
Degree, and export a corresponding temperature signal.Controller 14 and infrared sensor 13c and cold generating module are electrically connected.Control
The temperature signal that 14 receiving infrared-ray sensor 13c of device processed is exported, and the surface temperature control cold generating module according to article 20
A cooling pattern or a maintenance mode are switched to, maintains the surface temperature of article in one target temperature range.For example,
Target temperature range can spend for 1 degree Celsius extremely -1 degree or 0 degree of extremely -3 degree Celsius, -5 degree or -7.
It is understood that temperature sensor 13a, 13b is respectively set in heat-insulated cavity 11a and 11b, referred to sensing one
Needle temperature.For example, pointer temperature can be the cavity temperature of heat-insulated cavity 11a, 11b, i.e., the sky in heat-insulated cavity 11a, 11b
Temperature degree.Or pointer temperature can be the surface temperature of the article 20 in heat-insulated cavity 11a and 11b, such as temperature sensor
13a, 13b can be infrared sensor.Controller 15 can be controlled according to the pointer temperature that temperature sensor 13a, 13b are sensed and be caused
Cold module starts or stops.For example, the pointer temperature that temperature sensor 13a, 13b is sensed is less than or equal to one and stops temperature
When spending, controller 15 stops cold generating module operating, such as stops compressor 121 or fan 124a or 124b；When pointer temperature
When more than or equal to a start-up temperature, controller 15 i.e. start cold generating module, such as starting compressor 121 or fan 124a or
124b.In short, controller 14 according to temperature sensor 13a, 13b pointer temperature sensed control respectively heat-insulated cavity 11a,
The cavity temperature of 11b is in a predetermined temperature range.
It should be noted that the cooling pattern and maintenance mode of cold generating module are to represent cold generating module for ice greenhouse 111
Different refrigeration outputs, wherein the refrigeration output of cooling pattern is stronger, and maintains the refrigeration output of mode weaker.Therefore, quickly cooling
Mode maintains mode to be not necessarily the compressor 121 or fan 124a, 124b for starting cold generating module.For example, in maintenance
When mode, controller 14 can open air door (not shown) intermittently to guide the cooler air in heat-insulated cavity 11a and maintain ice
The surface temperature of article 20 in greenhouse 111 is in 0 degree Celsius.In cooling pattern, controller 14 can start fan 124b and/or
Start compressor 121 to provide stronger refrigeration output.
Referring to figure 2., to illustrate how refrigerator of the invention switches cold generating module to cooling pattern or maintenance mode.It is first
First, with the surface temperature (S31) of the article 20 in infrared sensor 13c sensing ice greenhouse 111.It is understood that in wind
In the state of fan starting, that is, when air-supply, the sensing accuracy of infrared sensor 13c will affect.Therefore, if in air-supply situation
Under, controller 14 can first stop the surface temperature that fan senses article 20 again.It is out-of-blast in cold generating module in an embodiment
Afterwards, controller can first sense again the surface temperature of article 20 after a delay time (such as 10 seconds or 20 seconds).
Then, controller 14 judges whether the surface temperature of article 20 is greater than or equal to a quickly cooling start-up temperature (S32).It lifts
For example, quickly cooling start-up temperature may be set to 5 degree Celsius.If it is not, cold generating module switches to maintenance mode or maintains maintenance mould
Formula (S36).Timing senses the surface temperature (S31) of article 20 in ice greenhouse 111 later, to be confirmed whether to have the article being newly added
20.For example, controller 14 includes a timer 141, senses the time with the one of setting, controller 14 is according to timer 141
The set sensing time can periodically sense the surface temperature of article 20 in ice greenhouse 111.
If the surface temperature of article 20 is greater than or equal to quickly cooling start-up temperature, cold generating module switches to cooling pattern,
Controller 14 executes step S33 to S35.Firstly, the initial surface temperature that controller 14 measures article 20 is reduced to half
Half cool time (S33) needed for cold temperature.Half cold temperature refers to that the surface temperature of article 20 is reduced to the initial table of article 20
One medium temperature of face temperature and cold wind temperature.For example, the temperature for newly putting the meat of ice greenhouse 111 into is Celsius 25
Degree, the initial surface temperature of article 20 is 25 degree Celsius.Assuming that the cold wind temperature for being sent into ice greenhouse 111 is -7 degree Celsius, then
The initial surface temperature of article 20 and the medium temperature of cold wind temperature are 9 degree Celsius.The surface temperature of article 20 is from Celsius
25 degree be reduced to half cold temperature (9 degree Celsius) needed for the time be half cool time.It is understood that the half of identical items is cold
Time is certain value.For aforementioned, when reducing the temperature of above-mentioned article with the cold wind of -7 degree Celsius, surface temperature is from Celsius
9 degree are reduced to 1 degree Celsius half required cool time identical as 9 degree Celsius half required cool times are reduced to from 25 degree Celsius, such as
This can produce a cooling curve of this article.
It should be noted that during the initial surface temperature of article 20 is reduced to half cold temperature, it may be necessary to repeatedly stop
Only refrigeration (such as out-of-blast), to confirm whether the surface temperature of article 20 reaches half cold temperature.When the surface temperature of article 20
Degree is when reaching half cold temperature, adds up all refrigeration time and can be used as half cool time.
Then, based on half cool time that controller 14 can be measured according to step S33, the surface of article 20 is calculated
The quickly cooling time (S34) needed for temperature is reduced to a target temperature (such as -1 degree Celsius), wherein target temperature is in ice greenhouse
In 111 target temperature range.In an embodiment, the quickly cooling time can be calculated with following equation:
3.322×log((Ti-Tg)/(To-Tg))×Thf
Wherein Ti is the initial surface temperature of article, and Tg is cold wind temperature, and To is half needed for target temperature and Thf are then
Cool time.
Then, controller 14 only need to control cold generating module under cooling pattern by step S34 quickly cooling calculated when
Between after (S35), i.e. the surface temperature of identification article 20 reaches target temperature, that is, without interrupting refrigeration to confirm the table of article 20
Whether face temperature reaches target temperature.At this point, the i.e. changeable cold generating module of controller 14 is to maintaining mode (S36).By article 20
Surface temperature maintain target temperature (such as Celsius -1 degree) a period of time after, the surface of article 20 can be made by thermal diffusion
Temperature infiltrates into the inside of article 20, even bottom.For example, the thermal-diffusion constant D of meat and the flesh of fish be about 1.2 ×
10-3m2The permeability-thickness d* of/sec, meat or the flesh of fish can be estimated by following formula:
Wherein t1 is time of penetration (penetration time).In general, permeability-thickness d* per minute is about
2.68mm, therefore, when the thickness of meat is if 30mm, needed for keeping the temperature of meat bottom consistent with the surface temperature sensed
Time of penetration be (30/2.68)2, about 125 minutes.
According to above-mentioned switching flow, the ice greenhouse of refrigerator of the invention can be sent into ice greenhouse with the cold wind of lower temperature
111, quickly to reduce the surface temperature of food in ice greenhouse 111, and cut when the surface temperature of food reaches target temperature
Maintenance mode is shifted to, the temperature to avoid the food in ice greenhouse is too low and excessively freezes, and then ice crystal is avoided to destroy food knot
Structure.
Referring again to Fig. 1, in an embodiment, refrigerator of the invention includes a detector 15, electrically with controller 14
Connection.Detector 15 can detect a refrigerator doors of refrigerator or whether an ice greenhouse door switchs, and export corresponding detection letter
Number.Controller 14 receives after detector 15 exports detection signal, can determine whether newly to put the article of ice greenhouse 111 into
20, and be confirmed whether to need to measure half cool time again.For example, article A is put into ice greenhouse 111 and passes through under cooling pattern
After a period of time refrigeration, half cold temperature is had not yet been reached in surface temperature, therefore the step of measuring half cool time is not yet completed.This
When, user switchs refrigerator doors or ice greenhouse door and is put into article B to ice greenhouse 111.If the surface temperature of article B is greater than article
The surface temperature of A, that is, the maximum temperature of article 20 (including article A and article B) increases in ice greenhouse 111, controller 14
Recalculate half cool time.Conversely, controller 14 can be without weight if the surface temperature of article B is less than the surface temperature of article A
It is new to calculate half cool time.It is understood that new article is not put into after refrigerator doors or ice greenhouse door switch, that is, ice greenhouse
The maximum surface temperature of article 20 does not change in 111, and controller 14 is also without recalculating half cool time.
Referring to figure 3., in an embodiment, infrared sensor 13c includes at least one single infrared sensor.Citing
For, infrared sensor 13c includes thermopile sensor 131 and signal processor 132.Thermopile sensor 131 and
Signal processor 132 may be disposed at same encapsulation to reduce volume, such as TO5 encapsulation.Thermopile sensor 131 includes a thermoelectricity
A heap sensing component 131a and thermistor 131c.Thermistor 131c can compensate for thermoelectric pile sensing component 131a, to obtain
Accurate sensing result.In order to overcome, how much different article is in ice greenhouse and measures the error of article temperature, Yu Yishi
It applies in example, thermopile sensor 131 further includes a lens 131b, it is set to a sensing end of thermoelectric pile sensing component 131a,
To define a sensing view angle theta of infrared sensor 13c.For example, sensing view angle theta can be 10-20 degree.It is understood that
It is that the necessary transmissive infrared ray of the material of lens 131b, for example, the material of lens 131b can be silicon or germanium, transmissive
IR wavelength be about 1-12 μm.In an embodiment, lens 131b can be siliceous Fresnel lens.
Above description is connected, signal processor 132 includes a signal amplifier 132a, a bias resistance 132b, a signal
Multiplexer 132c, an analog-to-digital converter 132d and a microcontroller 132e.Bias resistance 132b is to measure heat
The resistance value of quick resistance 131c to extrapolate the environment temperature of thermoelectric pile sensing component 131a, and then calculates the temperature of article.
The sensing signal SS1 that signal amplifier 132a is exported to amplify thermoelectric pile sensing component 131a.Signal multiplexer 132c
For switching the sensing signal SS1 that sensing signal SS2 from thermistor 131c or signal amplifier 132a are amplified, and present
It send and is calculated after being converted to digital signal to analog-to-digital converter 132d by microcontroller 132e, and export corresponding temperature
Signal TS is spent to controller 14.In an embodiment, the output port of microcontroller 132e can be digital, such as I2C、
UART, analog voltage formula or logic IO output.
Referring to figure 4., in an embodiment, infrared sensor 13c can be an infrared ray array sensor, and it includes one
Infrared ray array sensor chip 131 ' and a signal processor 132 '.Infrared ray array sensor chip 131 ' includes an infrared ray
An array sensing component 131a ' and lens 131b.Infrared ray array sensing component 131a ' sensing article 20 is radiated infrared
Line, and export corresponding sensing signal SS1.Infrared ray array sensing component 131a ' can be thermoelectric pile array sensor,
Resolution ratio is 4 × 4,8 × 8,16 × 16,32 × 32,64 × 64 or 80 × 80 pixels.In an embodiment, infrared ray array is passed
Sensor can be a resistor-type array infrared sensor.For example, multiple highest temperature pixels of infrared ray array sensor
Initial surface temperature of one temperature averages as article 20.Lens 131b is set to infrared ray array sensing component 131a's '
One front end to define a sensing range of infrared ray array sensing component 131a ', that is, senses visual angle.At identical sensing visual angle
In the case where, the resolution ratio of infrared ray array sensing component 131a ' is higher, and the sensing visual angle of each pixel is smaller, therefore differentiates
Rate is higher, and is capable of the temperature of accurate measurement article 20.In a preferred embodiment, infrared ray array sensor chip 131 ' is more wrapped
Containing a thermistor 131c.Thermistor 131c senses an environment temperature and exports a sensing signal SS2.Thermistor 131c can
Infrared ray array sensor chip 131 ' is compensated, to obtain accurate sensing result.
Connect above description, signal processor 132 ' includes a signal amplifier 132a, a microcontroller 132e, one non-waves
A hair property memory 132f and communication interface 132g.132 ' output pixel selection signal PSS of signal processor is to infrared ray array
Sensing component 131a ', infrared ray array sensing component 131a ' then by the sensing signal SS1 of selected sensor pixel export to
The amplified input microcontroller 132e of signal amplifier 132a, sensing signal SS1.Microcontroller 132e built-in number is to mould
Infrared ray array sensing component 131a ' the sensing signal SS1 exported is converted into digital signal by quasi- converter.Likewise, hot
The resistance value of quick resistance 131c is also converted via microcontroller 132e built-in digital to analog converter, to learn environment temperature
Degree.Non-voltile memory 132f can be used to store the correction ginseng of infrared ray array sensing component 131a ' and thermistor 131c
Number, to be used to calculate measured article temperature.Communication interface 132g is then used to export temperature signal TS to controller 14.It lifts
For example, communication interface 132g can be I2C, USB, UART, analog voltage formula or logic IO output.It is understood that non-
Volatile memory 132f and communication interface 132g can be integrated into microcontroller 132e, such as microcontroller
STM8L151G6U6。
In summary, refrigerator of the invention is that an at least infrared sensor is arranged to sense ice greenhouse in a non-contact manner
The surface temperature of interior article, then the surface temperature control cold generating module of foundation article maintain mode in a cooling pattern and one
Between switch so that the surface temperature of article can be reduced rapidly to the target temperature near solidification point under cooling pattern,
And maintenance mode is switched to after the surface temperature of article reaches target temperature, the surface temperature of article is maintained into target temperature
In range, the temperature to avoid article is too low and excessively freezes.
Embodiment described above is only technical idea and feature to illustrate the invention, and purpose makes to be familiar with this skill
The personage of skill can understand the content of the present invention and implement accordingly, when cannot with restriction the scope of the patents of the invention, i.e., generally
According to equivalent change made by disclosed spirit or modification, should cover in the scope of the patents of the invention.
Claims (17)
1. a kind of refrigerator, characterized by comprising:
One heat-insulated cavity, it includes an ice greenhouses, to accommodate an at least article；
One cold generating module is connect with the heat-insulated cavity, to reduce the cavity temperature in the ice greenhouse；
One infrared sensor is set in the ice greenhouse, to sense a surface temperature of the article, and is exported corresponding
One temperature signal；And
One controller is electrically connected, to receive the temperature signal, and foundation with the infrared sensor and the cold generating module
The surface temperature control of article cold generating module switches to a cooling pattern or a maintenance mode, makes the surface of the article
Temperature is quickly reduced under the cooling pattern and is maintained in a target temperature range under the maintenance mode.
2. refrigerator as described in claim 1, which is characterized in that the infrared sensor includes at least one single infrared ray sensing
Device or an infrared ray array sensor.
3. refrigerator as claimed in claim 2, which is characterized in that the infrared ray array sensor is sensed comprising a thermoelectric pile array
Device or a resistor-type array infrared sensor.
4. refrigerator as claimed in claim 2, which is characterized in that the resolution ratio of the infrared ray array sensor be 4 × 4,8 × 8,
16 × 16,32 × 32,64 × 64 or 80 × 80 pixels.
5. refrigerator as described in claim 1, which is characterized in that the infrared sensor includes a lens, and it is red to be set to this
One sensing end of outside line sensor, to define a sensing visual angle of the infrared sensor.
6. refrigerator as claimed in claim 5, which is characterized in that the material of the lens is silicon or germanium.
7. refrigerator as claimed in claim 5, which is characterized in that the lens are siliceous Fresnel lens.
8. refrigerator as described in claim 1, which is characterized in that the controller is greater than or equal in the surface temperature of the article
When one quickly cooling start-up temperature, switch the cold generating module to the cooling pattern.
9. refrigerator as described in claim 1, which is characterized in that the controller is measured when the cold generating module is the cooling pattern
Half cool time needed for one initial surface temperature of the article is reduced to the cold temperature of half, and calculating according to half cool time should
The surface temperature of article is reduced to the quickly cooling time needed for the target temperature in the target temperature range.
10. refrigerator as claimed in claim 9, which is characterized in that the controller is the cooling pattern in the cold generating module and passes through
After spending the quickly cooling time, switch the cold generating module to the maintenance mode.
11. refrigerator as claimed in claim 9, which is characterized in that the quickly cooling time is calculated with following equation:
3.322×log((Ti-Tg)/(To-Tg))×Thf
Wherein Ti be the article the initial surface temperature, Tg be a cold wind temperature, To be the target temperature and Thf be should partly
Cool time.
12. refrigerator as claimed in claim 9, which is characterized in that the infrared sensor includes an infrared ray array sensor,
And the initial surface temperature of a temperature averages of multiple highest temperature pixels of the infrared ray array sensor as the article.
13. refrigerator as claimed in claim 9, which is characterized in that further include:
One detector is electrically connected with the controller, and wherein the detector detects a refrigerator doors or an ice greenhouse for the refrigerator
Whether door switchs, and exports corresponding detection signal, and the controller receives the detection signal, and in the refrigerator doors or is somebody's turn to do
It is confirmed whether to need to measure half cool time again after ice greenhouse door switch.
14. refrigerator as described in claim 1, which is characterized in that the controller includes a timer, and the controller is in the cause
When cold module is the maintenance mode, the surface temperature of the article is sensed according to a sensing time timing set by the timer
Degree.
15. refrigerator as described in claim 1, which is characterized in that the controller is out-of-blast in the cold generating module and passes through one
The surface temperature of the article is sensed after delay time.
16. refrigerator as described in claim 1, which is characterized in that the cold generating module includes an inverter compressor.
17. refrigerator as described in claim 1, which is characterized in that the cold generating module includes a fan or an air door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040004.0A CN110044115A (en) | 2018-01-16 | 2018-01-16 | Refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810040004.0A CN110044115A (en) | 2018-01-16 | 2018-01-16 | Refrigerator |
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|---|---|
| CN110044115A true CN110044115A (en) | 2019-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810040004.0A Pending CN110044115A (en) | 2018-01-16 | 2018-01-16 | Refrigerator |
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| CN1340685A (en) * | 2000-08-29 | 2002-03-20 | 株式会社日立制作所 | Refrigerator |
| CN101970961A (en) * | 2008-03-14 | 2011-02-09 | 松下电器产业株式会社 | Refrigerator |
| CN104180579A (en) * | 2014-09-10 | 2014-12-03 | 合肥美的电冰箱有限公司 | Refrigerator |
| CN105605874A (en) * | 2016-01-22 | 2016-05-25 | 青岛海尔股份有限公司 | Refrigerator and detection method of inner temperature of refrigerator |
| CN107340062A (en) * | 2016-05-03 | 2017-11-10 | 众智光电科技股份有限公司 | Temperature-sensing device and air-conditioning system |
| CN207831767U (en) * | 2018-01-16 | 2018-09-07 | 众智光电科技股份有限公司 | Refrigerator |
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Application publication date: 20190723 |