CN114568887A - Air curtain air speed control method and device for open type display cabinet - Google Patents
Air curtain air speed control method and device for open type display cabinet Download PDFInfo
- Publication number
- CN114568887A CN114568887A CN202011459996.4A CN202011459996A CN114568887A CN 114568887 A CN114568887 A CN 114568887A CN 202011459996 A CN202011459996 A CN 202011459996A CN 114568887 A CN114568887 A CN 114568887A
- Authority
- CN
- China
- Prior art keywords
- air
- air curtain
- curtain
- temperature
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000008595 infiltration Effects 0.000 claims abstract description 34
- 238000001764 infiltration Methods 0.000 claims abstract description 34
- 238000012549 training Methods 0.000 claims abstract description 9
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000012887 quadratic function Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0439—Cases or cabinets of the open type
- A47F3/0443—Cases or cabinets of the open type with forced air circulation
- A47F3/0447—Cases or cabinets of the open type with forced air circulation with air curtains
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
- A47F3/00—Show cases or show cabinets
- A47F3/04—Show cases or show cabinets air-conditioned, refrigerated
- A47F3/0478—Control or safety arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2260/00—Function
- F05D2260/81—Modelling or simulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2270/00—Control
- F05D2270/30—Control parameters, e.g. input parameters
- F05D2270/313—Air temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Freezers Or Refrigerated Showcases (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
An air curtain air speed control method for an open display cabinet comprises the following steps: measuring the temperature of an air outlet of the air curtain, the temperature of an air return port of the air curtain and the ambient temperature outside the cabinet; according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the ambient temperature outside the cabinet and the air curtain air speed, training and establishing a regression model with correlation between the air curtain air speed and the external air heat infiltration degree; finding out the optimal value of the air curtain wind speed corresponding to the minimum value of the external air heat infiltration degree according to a regression model established by the temperature of the air curtain air outlet, the temperature of the air curtain air return inlet and the ambient temperature outside the cabinet; and setting or replacing the air curtain wind speed according to the optimum value of the air curtain wind speed. In addition, an air curtain air speed control device of the open display cabinet is also provided.
Description
Technical Field
The invention relates to an air curtain air speed control method and device for an open display cabinet.
Background
Open display cases are widely used in markets for displaying low-temperature goods, and are usually designed as a layered open area, and an air curtain is blown from top to bottom to reduce the dissipation of cold air in the open area, however, about 75% of the refrigeration load of the open display case comes from the air curtain suffering from external air infiltration, which is estimated to account for about 50% of the power consumption of the whole food retail industry, so that the energy consumption of the open display case is quite serious, and thus the external air infiltration is very significant in the energy consumption of the food retail industry.
The performance test of the air curtain of the prior art open showcase still stipulates a single optimal wind speed measured in a standard test environment (25 ℃, relative humidity 60%, and air speed of a placing space of 0.2m/sec) to resist the infiltration of outside air, but the environmental temperature outside the open showcase has not been a response mechanism for adjusting the air speed of the air curtain in response to the environmental change outside the showcase in a store. Therefore, how to improve the above-mentioned problems is one of the issues to be solved in the industry.
Disclosure of Invention
The invention provides an air curtain air speed control method and a device thereof for an open display cabinet, which are characterized in that the minimum value of the external air heat infiltration degree is found out by a regression model of the external air heat infiltration degree to the air curtain speed caused by the environment change outside different cabinets, and the air curtain fan motor of the open display cabinet is adjusted to operate at the optimum value of the air curtain air speed corresponding to the regression model, so that the open display cabinet achieves the purpose of energy saving.
An embodiment of the invention provides an air curtain air speed control method for an open type display cabinet, which is suitable for controlling the open type display cabinet. The open display cabinet comprises an air curtain air outlet and an air curtain air return opening, and the open display cabinet provides an air curtain from the air curtain air outlet to the air curtain air return opening according to the air curtain air speed. The air curtain air speed control method of the open type display cabinet comprises the following steps: measuring the temperature of an air outlet of the air curtain, the temperature of an air return port of the air curtain and the ambient temperature outside the cabinet; according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the environment temperature outside the cabinet and the air curtain air speed, training and establishing a regression model with correlation between the air curtain air speed and the external air heat infiltration degree; finding out the optimal value of the air curtain wind speed corresponding to the minimum value of the external air heat infiltration degree according to a regression model established by the temperature of the air curtain air outlet, the temperature of the air curtain air return inlet and the ambient temperature outside the cabinet; and the air curtain wind speed is set or replaced according to the optimum value of the air curtain wind speed.
Another embodiment of the present invention provides an air curtain wind speed control device for an open display case, which is suitable for being connected to an open display case. The open display cabinet comprises an air curtain air outlet and an air curtain air return inlet. The air curtain air speed control device of the open type display cabinet comprises a fan, a motor, a first temperature sensor, a second temperature sensor, a third temperature sensor and a controller. The fan provides an air curtain from an air outlet of the air curtain to an air return inlet of the air curtain according to the air speed of the air curtain. The motor drives the fan. The first temperature sensor measures the temperature of the air curtain air outlet. The second temperature sensor measures the temperature of the air curtain air return opening. The third temperature sensor measures an ambient temperature outside the open display case. The controller is connected with the motor, the first temperature sensor, the second temperature sensor and the third temperature sensor, and the controller establishes a regression model with correlation between the air curtain air speed and the external air heat infiltration degree according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the external environment temperature of the cabinet and the air curtain air speed, so as to find out the optimal air curtain air speed value corresponding to the minimum value of the external air heat infiltration degree and modulate the air curtain air speed of the fan motor according to the optimal air curtain air speed value.
Based on the above, in the method and the device for controlling the air curtain air speed of the open display cabinet of the invention, a regression model with correlation between the air curtain air speed and the external air heat infiltration degree is established according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the external environment temperature of the cabinet and the air curtain air speed, and the motor of the open display cabinet is adjusted according to the minimum value of the external air heat infiltration degree caused by the external environment change to the regression model of the air curtain air speed, so that the air curtain fan operates corresponding to the optimal air curtain air speed value of the regression model, and the open display cabinet has the advantage of energy saving due to the lower external air heat infiltration degree.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
FIG. 1 is a side sectional view of the open display case of the present invention.
FIG. 2 is a block diagram of the air curtain wind speed control device of the open showcase of the present invention.
FIG. 3 is a flow chart of the method for controlling the air curtain air speed of the open showcase of the present invention.
FIG. 4 is a diagram of a regression model according to an embodiment of the present invention.
Reference numerals
100 open type display cabinet
110: cabinet body
112 shelf back plate
114 shelf for placing articles
120 gas channel
122 air curtain air outlet
124 air curtain air return inlet
130 evaporator
140 controller
150 fan
11 first temperature sensor
12: second temperature sensor
13 third temperature sensor
14: motor
P is a containing space
S100. air curtain air speed control method of open type display cabinet
S110-S170 step
M degree of heat penetration of external air
V0Air curtain wind speed
Ta1,Ta2,Ta3,Ta4Function of quadratic curve
Vf1,Vf2,Vf3,Vf4Optimum value of air speed of air curtain
Detailed Description
The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:
FIG. 1 is a side sectional view of the open display case of the present invention. FIG. 2 is a block diagram of the air curtain wind speed control device of the open showcase of the present invention. Referring to fig. 1 and fig. 2, the open showcase air curtain wind speed control apparatus of the embodiment shown in fig. 2 is suitable for being connected to the open showcase 100. The open showcase 100 of the embodiment includes a cabinet body 110, a gas passage 120, an evaporator 130, a controller 140, a fan 150, a first temperature sensor 11, a second temperature sensor 12, a third temperature sensor 13, and a motor 14.
In the embodiment, the cabinet 110 has a receiving space P, and the receiving space P may be provided with a shelf back plate 112 and a plurality of shelves 114, and each shelf 114 is separated by a distance and connected to the shelf back plate 112. The air channel 120 is disposed in the cabinet 110, and the air channel 120 includes an air curtain outlet 122 and an air curtain return opening 124, wherein the controller 140 controls the motor 14 to provide operation information of an air curtain wind speed, the motor 14 is adjusted to drive the fan 150 to rotate, the fan 150 blows air from the air curtain outlet 122 to the air curtain return opening 124 according to an air curtain wind speed setting value to form an air curtain, and the air curtain wind speed refers to a speed of air blown by the fan 150 or a speed of air blown out from the air curtain outlet 122. During operation of the open showcase 100, the air curtain is continuously blown out from the air curtain outlet 122, and the air is guided back into the air passage 120 through the air curtain return opening 124, cooled by the evaporator 130, and finally blown out from the air curtain outlet 122 to form an air curtain, so as to complete a cycle.
In the embodiment, the first temperature sensor 11 is located in the gas channel 120, and the first temperature sensor 11 is disposed adjacent to the air curtain outlet 122, and the first temperature sensor 11 measures the temperature of the air curtain outlet 122 and transmits the temperature of the air curtain outlet 122 to the controller 140. The second temperature sensor 12 is located within the gas channel 120, and the second temperature sensor 12 is disposed adjacent to the air curtain return opening 124, and the second temperature sensor 12 measures the temperature of the air curtain return opening 124 and transmits the temperature of the air curtain return opening 124 to the controller 140. On the other hand, the third temperature sensor 13 is disposed outside the open display cabinet 100, for example, at a distance of about one meter from the air curtain outlet 122, and the third temperature sensor 13 measures an ambient temperature outside the open display cabinet 100.
FIG. 3 is a flow chart of the method for controlling the air curtain air speed of the open showcase of the present invention. Please refer to fig. 1 to 3. In the present embodiment, based on the open showcase 100 of fig. 1 and the open showcase air curtain air speed control apparatus of fig. 2, the open showcase air curtain air speed control method S100 of the present embodiment may be executed, which includes the following steps S110 to S170. First, in step S110, the controller 140 sets the air curtain wind speed V0The air curtain wind speed V0Possibly an initial value or historical optimum. The controller 140 varies the wind speed V according to the air curtain0The motor 14 is controlled, and the fan 150 is driven to rotate by the motor 14. Fan 150 according to air curtain wind speed V0To provide an air curtain from the air curtain outlet 122 to the air curtain return 124.
Next, step S120 is performed to determine whether a training step is performed according to the temperature T of the air curtain outlet 1221Temperature T of air curtain air return opening 1242The ambient temperature T outside the cabinet3And air curtain wind speed V0And establishing a regression model f. During training, the controller 140 collects the temperature T of the air curtain outlet 1221Temperature T of air curtain air return opening 1242The ambient temperature T outside the cabinet3For training the regression model f, if the training step is not performed, the fan 150 will be based on the existing established regression model f or the initial air curtain wind speed V0The air curtain is provided according to the determined air curtain wind speed. It should be noted that, in an embodiment, it may also be set that the training step is performed again after a certain time. On the contrary, if the training step is determined to be performed, refer to steps S130 to S140 described below with reference to fig. 3.
Step S130 is performed to collect the temperature T of the air curtain outlet 122 measured by the first temperature sensor 111The temperature T of the air curtain air return opening 124 measured by the second sensor 122And the outside-cabinet ambient temperature T measured by the third sensor 133And transmitted to the controller 140. Then, step S140 is performed according to the temperature T of the air curtain outlet 1221Temperature T of air curtain air return port 1242The ambient temperature T outside the cabinet3And air curtain wind speed V0To train the establishment of air curtain wind speed VfA regression model f having a correlation with an external air heat infiltration level M. In detail, the step S140 includes the following steps: according to the temperature T of the air curtain outlet 1221Temperature T of air curtain air return opening 1242The ambient temperature T outside the cabinet3And calculating an outside air heat quantity infiltration degree M expressed by the following equation (1):
note that the above equation (1) assumes that the air specific ratio value is constant. Air curtain wind speed VfThe temperature T of the air curtain outlet 122 is a controllable independent variable1Temperature T of air curtain air return opening 1242The ambient temperature T outside the cabinet as a dependent variable corresponding to the independent variable3For uncontrollable natural variables, the degree of external air heat infiltration M is a value between 0 and 1, the higher the value, the higher the degree of external air heat infiltration. Then, the degree M of external air heat infiltration and the air curtain wind speed V are utilizedfTo obtain the ambient temperature T outside the cabinet at different time points3The corresponding quadratic curve function. Due to the temperature T of the air curtain outlet 122 in the above equation (1)1Temperature T of air curtain air return opening 1242Respectively all being air curtain wind speed VfSo that equation (1) can be rewritten as the following equation (2):
in the above equation (2), a, b, c, d are constants for a certain period of time, TaFor the environment temperature outside the cabinet in the period of time, according to the external air heat infiltration degree M and the air curtain wind speed x of the equation (2), a relation formula is obtained as a quadratic curveA line function. And then, forming a regression model f by using the quadratic curve functions corresponding to the environment temperatures outside the cabinet at different time points. The graphical presentation is shown in FIG. 4, where the horizontal axis of FIG. 4 represents the air curtain wind speed VfThe vertical axis of FIG. 4 represents the degree of external air heat penetration M, Ta1、Ta2、Ta3、Ta4Respectively represent the ambient temperature T outside the cabinet at different time pointsaCorresponding quadratic curve function, and Vf1、Vf2、Vf3、Vf4For each quadratic curve function T separatelya1、Ta2、Ta3、Ta4The air curtain wind speed optimum value corresponding to the minimum external air heat infiltration degree.
After the regression model f is established, step S150 is performed to determine the optimum value V of the air curtain wind speedfWhether it is the optimum value. In detail, the temperature T of the air curtain outlet 122 is determined according to the regression model f1Temperature T of air curtain air return opening 1242And the ambient temperature T outside the cabinet3Finding out the optimum value V of air curtain wind speed corresponding to the minimum value of the external air heat infiltration degree Mf. Specifically, a quadratic curve function corresponding to a certain time point, such as the quadratic curve function T, can be found from the established regression model f of fig. 4a3The lowest point of the curve is the minimum value of the external air heat infiltration degree M, and then according to a quadratic curve function Ta3The lowest point of the air curtain is corresponding to the horizontal axis, and the optimal value V of the air curtain air speed can be foundf3。
Therefore, if the measured temperature T of the air curtain outlet 122 is obtained1Temperature T of air curtain air return opening 1242And the ambient temperature T outside the cabinet3The calculated degree of external air heat infiltration M, which corresponds to the quadratic function T of FIG. 4a3Not a quadratic function Ta3The lowest point of the air curtain wind speed is determined to be not the optimum value, and the process returns to step S130. Otherwise, if yes, step S160 is performed, and the controller 140 determines the optimal value V according to the air curtain air speedfTo set or replace the initial air curtain wind speed V0. Then, step S170 is performed, in which the controller 140 drives and modulates the motor 14 to adjust the air curtain velocity V of the fan 1500Is the optimum value V of air speed of the air curtainf。
In summary, in the method and the apparatus for controlling the air curtain air speed of the open display cabinet of the present invention, a regression model with correlation between the air curtain air speed and the external air heat infiltration degree is established according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the external environment temperature of the cabinet and the air curtain air speed, and the motor of the open display cabinet is adjusted according to the minimum value of the external air heat infiltration degree caused by the external environment change to the regression model of the air curtain air speed, so that the open display cabinet can operate at the optimum value of the air curtain air speed corresponding to the regression model, and the open display cabinet can have the advantage of energy saving even if the external air heat infiltration degree is low.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (8)
1. The method for controlling the air curtain air speed of the open type display cabinet is suitable for controlling the open type display cabinet, the open type display cabinet comprises an air curtain air outlet and an air curtain air return opening, and the method for controlling the air curtain air speed of the open type display cabinet is characterized by comprising the following steps of:
measuring the temperature of the air outlet of the air curtain, the temperature of the air return port of the air curtain and the ambient temperature outside a cabinet;
according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the ambient temperature outside the cabinet and the air curtain air speed, a regression model with the air curtain air speed and the external air heat infiltration degree having correlation is trained and established;
finding out an air curtain air speed optimum value corresponding to the minimum value of the external air heat infiltration degree according to the regression model; and
and setting or replacing the air curtain air speed according to the optimum value of the air curtain air speed.
2. The method as claimed in claim 1, wherein the air curtain speed is the speed of air blown out from the air curtain outlet.
3. The method of claim 1, wherein the step of training the regression model for the correlation between the air curtain velocity and the degree of external heat infiltration comprises the steps of:
calculating the external air heat infiltration degree according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening and the external environment temperature of the cabinet; and
utilizing the correlation between the external air heat infiltration degree and the air curtain air speed to obtain quadratic curve functions corresponding to the external environment temperature of the cabinet at different time points; and
and forming the regression model by using the quadratic curve function corresponding to the environment temperature outside the cabinet at different time points.
4. The method as claimed in claim 1, wherein the step of setting or replacing the air curtain wind speed according to the optimum value of the air curtain wind speed further comprises the steps of:
modulating a motor to drive a fan and operating according to the optimum value of the air speed of the air curtain.
5. The utility model provides an open show cupboard gas curtain wind speed control device, is suitable for connecting an open show cupboard, and this open show cupboard includes a gas curtain air outlet and a gas curtain return air inlet, and its characterized in that, this open show cupboard gas curtain wind speed control device includes:
the fan provides air to be blown out from the air curtain air outlet at an air curtain air speed;
a motor for driving the fan;
the first temperature sensor is used for measuring the temperature of the air outlet of the air curtain;
the second temperature sensor is used for measuring the temperature of the air curtain air return opening;
a third temperature sensor for measuring an ambient temperature outside the open display case; and
the controller is connected with the motor, the first temperature sensor, the second temperature sensor and the third temperature sensor, and establishes a regression model of the correlation between the air curtain air speed and the external air heat infiltration degree according to the temperature of the air curtain air outlet, the temperature of the air curtain air return opening, the ambient temperature outside the cabinet and the air curtain air speed, so as to find out an air curtain air speed optimum value corresponding to the external air heat infiltration degree minimum value and modulate the motor according to the air curtain air speed optimum value.
6. The open display case air curtain wind speed control device of claim 5, wherein the first temperature sensor is disposed at the air curtain outlet.
7. The open display case air curtain wind speed control device of claim 5, wherein the second temperature sensor is disposed at the air curtain return air inlet.
8. The open display case air curtain wind speed control device of claim 5, wherein the third temperature sensor is disposed outside the open display case.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW109141949A TWI735388B (en) | 2020-11-30 | 2020-11-30 | Air curtain velocity control method and device thereof for open display refrigerator cabinet |
| TW109141949 | 2020-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114568887A true CN114568887A (en) | 2022-06-03 |
Family
ID=78283060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011459996.4A Pending CN114568887A (en) | 2020-11-30 | 2020-12-11 | Air curtain air speed control method and device for open type display cabinet |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114568887A (en) |
| TW (1) | TWI735388B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM252342U (en) * | 2004-02-06 | 2004-12-11 | Ind Tech Res Inst | Device for controlling wind speed of air curtain for open-type display closet |
| JP2005180817A (en) * | 2003-12-19 | 2005-07-07 | Nakano Refrigerators Co Ltd | Centralized management system for refrigerating/cold storage facility |
| CN1802542A (en) * | 2003-04-07 | 2006-07-12 | Dna控股有限公司 | Refrigerated cabinet |
| CN104825016A (en) * | 2014-02-07 | 2015-08-12 | 松下知识产权经营株式会社 | Low-temperature display cabinet |
| CN109707657A (en) * | 2019-02-26 | 2019-05-03 | 澳柯玛股份有限公司 | A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated |
| CN209360190U (en) * | 2018-08-08 | 2019-09-10 | 深圳艾斯兰德智能装备有限公司 | It is a kind of can be with the wind curtain type refrigerator display case of surface temperature outside self-balancing |
| CN111839101A (en) * | 2020-06-28 | 2020-10-30 | 珠海格力电器股份有限公司 | Display cabinet control method and device, storage medium and display cabinet |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2993412B2 (en) * | 1995-11-20 | 1999-12-20 | 三菱電機株式会社 | Air outlet and air conditioner provided with the air outlet |
| WO2002098766A1 (en) * | 2001-05-30 | 2002-12-12 | Kongo Kabushiki Kaisha | Storage body with air cleaning function |
| CN107518691A (en) * | 2017-10-01 | 2017-12-29 | 江苏康宝电器有限公司 | It is a kind of to be used for fresh meat refrigerator display case with the air-cooled circulatory system |
| CN110160201A (en) * | 2019-06-14 | 2019-08-23 | 重庆大学 | A kind of blowing and drawing type circulation air curtain system |
-
2020
- 2020-11-30 TW TW109141949A patent/TWI735388B/en active
- 2020-12-11 CN CN202011459996.4A patent/CN114568887A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1802542A (en) * | 2003-04-07 | 2006-07-12 | Dna控股有限公司 | Refrigerated cabinet |
| JP2005180817A (en) * | 2003-12-19 | 2005-07-07 | Nakano Refrigerators Co Ltd | Centralized management system for refrigerating/cold storage facility |
| TWM252342U (en) * | 2004-02-06 | 2004-12-11 | Ind Tech Res Inst | Device for controlling wind speed of air curtain for open-type display closet |
| CN104825016A (en) * | 2014-02-07 | 2015-08-12 | 松下知识产权经营株式会社 | Low-temperature display cabinet |
| CN209360190U (en) * | 2018-08-08 | 2019-09-10 | 深圳艾斯兰德智能装备有限公司 | It is a kind of can be with the wind curtain type refrigerator display case of surface temperature outside self-balancing |
| CN109707657A (en) * | 2019-02-26 | 2019-05-03 | 澳柯玛股份有限公司 | A kind of refrigerated display cabinet for the rotation speed of fan that is self-regulated |
| CN111839101A (en) * | 2020-06-28 | 2020-10-30 | 珠海格力电器股份有限公司 | Display cabinet control method and device, storage medium and display cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| TW202222216A (en) | 2022-06-16 |
| TWI735388B (en) | 2021-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7451607B2 (en) | Method of control for a refrigerated merchandiser | |
| US9297548B2 (en) | Control of multiple zone refrigerant vapor compression systems | |
| EP1807663A2 (en) | Variable speed condenser fan control system | |
| EP1624262A4 (en) | Refrigerator | |
| CN106016964B (en) | A kind of control system, control method and the refrigerator of more air door wind-cooling refrigerators | |
| CN110779269A (en) | Temperature and humidity control method and device and air cooler | |
| WO2005090877A1 (en) | Wine storage of ageing type | |
| JP2010078198A (en) | Cooling system | |
| CN106679322A (en) | Method for controlling refrigerator running through mechanical rotary knob | |
| CN114568887A (en) | Air curtain air speed control method and device for open type display cabinet | |
| JP4502584B2 (en) | Control device for cooling system | |
| CN1164908C (en) | Control method of refrigerator temperature-changing chamber | |
| US20140123691A1 (en) | Control method for modular refrigerated merchandiser | |
| JP2010075309A (en) | Controller for cooling system | |
| CN211012051U (en) | Three-temperature-zone electronic constant-temperature wine cabinet | |
| CN106225418B (en) | Wine cabinet | |
| CN211011988U (en) | High-precision low-temperature calibration furnace based on semiconductor refrigeration | |
| CN210515477U (en) | Take operating system's refrigeration heating heat preservation vending machine | |
| CN1435628A (en) | Refrigerating system | |
| KR20130004678A (en) | Operating system and method of refrigerator with inverter compressor | |
| CN205448485U (en) | Quick -freezing installation for experiments | |
| KR100532315B1 (en) | Tropical fruit ripening room of refrigerator | |
| CN109405407A (en) | Refrigerator fermentation process and refrigerator with independent compartment | |
| CN220852778U (en) | Refrigerating apparatus | |
| CN203837163U (en) | All-in-one machine integrating air conditioner with refrigerator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |