CN1109867C - Refrigerator having device for generating air curtain and method for controlling air curtain generating operation - Google Patents
Refrigerator having device for generating air curtain and method for controlling air curtain generating operation Download PDFInfo
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- CN1109867C CN1109867C CN97113775A CN97113775A CN1109867C CN 1109867 C CN1109867 C CN 1109867C CN 97113775 A CN97113775 A CN 97113775A CN 97113775 A CN97113775 A CN 97113775A CN 1109867 C CN1109867 C CN 1109867C
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- door
- refrigerating chamber
- cold
- refrigerator
- temperature
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Abstract
The present invention relates to a refrigerator with a device for generating an air curtain. The device for generating an air curtain is started under the control of a sensor for sensing the opening and the closing of a door and a temperature sensor for sensing temperature in a refrigerating chamber, and the air curtain is formed when the door is opened or the temperature of the area near the door is higher than the temperature of the area far from the door. Thus, the area near the door of the refrigerating chamber can be thoroughly cooled when the door is closed, and an air curtain can be formed exactly when the door is opened and even if the sensor for sensing the opening and the closing of the door is out of order.
Description
Technical field
The present invention relates to a kind of have according to temperature of refrigerating chamber produce the refrigerator of device of air curtain and the method that the control air curtain produces.
Background technology
Fig. 1 represents a traditional refrigerator, and this refrigerator has a device that produces the air curtain that is used for covering the refrigerating chamber opening when opening refrigerator doors.As shown in Figure 1, refrigerator has a casing 10, forms refrigerating chamber 21 and refrigerating chamber 22 on the casing, and refrigerating chamber 21 and refrigerating chamber 22 are separated each other by plate 27, and the refrigerating chamber door 24 and the refrigerating-chamber door 25 of opening or closing refrigerating chamber 21 and refrigerating chamber 22 respectively.
Compressor 23 is installed in the back lower place of casing 10, is installed in the rear portion of refrigerating chamber 21 by the evaporimeter 29 that the cold-producing medium generation cold air that is provided by compressor 23 is provided.The cooling fan 19 that blows the cold air of evaporimeter 29 generations is installed in the top of evaporimeter 29.
Device for generating air curtain 20 is positioned at the top of refrigerating chamber 22.Device for generating air curtain 20 comprises the cold air channel 13 that is positioned at refrigerating chamber 22 tops, and the dispatch fan 11 that cold air is entered cold air channel 13 from evaporimeter 29.One end of cold air channel 13 is a cold-air vent 15, and it opens wide downwards at the opening adjacent with refrigerating chamber 22.The cold air that enters cold air channel 13 is discharged downwards, utilizes it to form the air curtain that blocks refrigerating chamber 22 openings.
Be provided with one in the refrigerating chamber 22 and detect the sensor (not shown) that refrigerating-chamber door 25 is opened or closed, dispatch fan 11 only detects door 25 at sensor and opens the controlled startup in time side.Like this, air curtain only produces when door 25 is opened, and prevents to pass through when door 25 from opening refrigerating chamber 22 opening part leakage of cold air.
The rear wall of refrigerating chamber 21 and refrigerating chamber 22 is provided with a plurality of cold-air vents 16,18.Close when door 25, come the cold air of flash-pot 29 to enter refrigerating chamber 21 and refrigerating chamber 22, thereby the food that refrigerating chamber 21 and refrigerating chamber 22 store is frozen respectively and refrigerates by cooling fan 19.
There is a problem in this conventional refrigerator, and promptly door 25 near zones can not effectively cool off.When door 25 was opened, its near zone communicated with the external world, and its temperature rises to and extraneous identical temperature at short notice.For this traditional refrigerator,,, it cools off so can not reaching rapidly and uniformly because door 25 near zones can not directly cool off.Have again, because the testing result of sensor is depended in the generation of air curtain, when sensor is out of order or just can not in time produces air curtain during job insecurity.
Summary of the invention
The objective of the invention is in order to overcome above-mentioned prior art problems, a kind of refrigerator is provided, the refrigerator doors near zone of this refrigerator can be cooled off by device for generating air curtain, and no matter whether the sensor that detecting gate is opened or closed is in operation breaks down, all can in time produce air curtain.
To achieve these goals, the invention provides a kind of refrigerator, this refrigerator has the casing of a formation refrigerating chamber, and the door of unlatching or closing cold room opening is arranged on the described casing, and described refrigerator comprises: a near cold air channel that has cold-air vent described refrigerating chamber opening; A dispatch cold air on cold air channel makes it flow out from cold-air vent and forms the fan that air curtain blocks described refrigerating chamber opening; One is detected the element that described door is opened or closed; A near element that reaches away from the temperature of described door that detects described door; A controlling organization, this mechanism described ON/OFF detecting element detecting gate open and described detector unit detecting gate near temperature when being higher than temperature away from the zone of door, control described dispatch starting fan.
Described detector unit preferably includes: the temperature of refrigerating chamber detecting element near the door detector unit described door that is arranged on described refrigerating chamber and the counter plate of a described door that is arranged on described refrigerating chamber.
The present invention also provides a kind of method that produces air curtain in the refrigerator inner control, described refrigerator has the casing of a formation refrigerating chamber, the door of opening or closing described refrigerating chamber is arranged, a cold air channel that has cold-air vent at the contiguous place of described refrigerating chamber opening on the described casing; The fan that the dispatch cold air makes it flow out from cold-air vent on described cold air channel, the air curtain that wherein blocks described refrigerating chamber opening is flowed out from cold-air vent by described dispatch fan blow cool air and forms, and described control method comprises the steps: to detect described door and opens or close; If described door is opened, control described dispatch starting fan; Detect near the temperature that reaches away from the door zone of described door; When near the temperature the door is higher than temperature away from the door zone, control described dispatch starting fan.
Description of drawings
By can further understanding each purpose of the present invention and advantage, wherein below in conjunction with the description of the drawings:
Fig. 1 is the side direction sectional drawing with conventional refrigerator of device for generating air curtain;
Fig. 2 is the side direction sectional drawing of refrigerator of the present invention;
Fig. 3 is the partial block diagram of refrigerator of the present invention; And
Fig. 4 is the flow chart of control method of the present invention.
The specific embodiment
Below, further describe the present invention with reference to accompanying drawing.
Fig. 2 is the side direction sectional drawing of refrigerator of the present invention, and Fig. 3 is the partial block diagram of refrigerator of the present invention.Refrigerator of the present invention is the same with as shown in Figure 1 conventional refrigerator, has a casing 30, form refrigerating chamber 41 and refrigerating chamber 42 on the casing, refrigerating chamber 41 and refrigerating chamber 42 are separated each other by plate 47, and the refrigerating chamber door 44 and the refrigerating-chamber door 45 of opening or closing refrigerating chamber 41 and refrigerating chamber 42 respectively.
Compressor 43 is installed in the back lower place of casing 30, is installed in the rear portion of refrigerating chamber 41 by the evaporimeter 49 that the cold-producing medium generation cold air that is provided by compressor 43 is provided.The cooling fan 39 that blows the cold air of evaporimeter 49 generations is installed in the top of evaporimeter 49, to provide cold air to refrigerating chamber 41 and refrigerating chamber 42.
Device for generating air curtain is positioned at the top of refrigerating chamber 42, and air curtain blocks the opening of refrigerating chamber 42 when refrigerating-chamber door 45 is opened.Device for generating air curtain comprises a cold air channel 33 that is positioned at refrigerating chamber 42 tops, and the dispatch fan 31 that cold air is entered cold air channel 33 from evaporimeter 49.One end of cold air channel 33 is a cold-air vent 35, and it opens wide downwards at the adjacent with refrigerating chamber 42 openings.The cold air that enters cold air channel 33 flows downward, and utilizes it to form the air curtain that blocks refrigerating chamber 42 outlets.With the axial-flow fan of evenly air draft as dispatch fan 31.
Press button 60 is installed in the front surface of refrigerating chamber 42.When door 45 was closed, door 45 was depressed button 60, and when door 45 was opened, button was then released.When press button 60 unclamped, microprocessor 61 detecting gates 45 that are installed on the refrigerator were opened.When press button 60 detects door 45 when opening, dispatch fan 31 is activated.Like this, when door 45 is opened, just produced air curtain, prevented to open and leak cold air because of door 45.
Two temperature sensors 63,65 are installed in the refrigerating chamber 42.Door temperature sensor 63 is arranged near door 45 inner surfaces, near the temperature detection refrigerating chamber 42 inside doors 45, and refrigerator temperature sensor 65 is arranged near the back plate of refrigerating chamber 42, detects the temperature away from door 45 zones.The temperature that temperature sensor 63,65 is measured is input into microprocessor 61.If the temperature difference of the temperature that temperature sensor 63,65 is measured is higher than predetermined value, in other words, near the temperature of door 45 are higher than near the temperature the plate behind the refrigerating chamber, and its difference has exceeded predetermined value, and microprocessor 61 will start dispatch fan 31 generation air curtains.
The following describes the processor of the above-mentioned refrigerator of control.
In service at refrigerator, whether microprocessor 61 detecting gates 45 are opened, i.e. step S1.Step S2: 45 open if detect to go out, microprocessor 61 starts dispatch fans 31 and produces the front openings that air curtains block refrigerating chamber 42.If detecting to go out at step S3 45 closes when dispatch fan 31 starts, carry out step S4 so: microprocessor 61 stops the rotation of dispatch fan 31.
When door 45 is closed, temperature actuated dispatch fan 31 and cooling fan 35 that microprocessor 61 will be measured according to temperature sensor 63,65.That is to say, rise if detect near the temperature go out 45, carry out step S6 at step S5: startup dispatch fan 31, at step S7, if near the temperature the door 45 drops to the temperature of refrigerating chamber 42 when dispatch fan 31 starts, carry out step S8: stop the rotation of dispatch fan 31.
Produce because air curtain is the on off state according near temperature the door 45 and door 45,, when door 45 is closed, improved near the intensity of cooling the door 45 so when door 45 is opened, prevented leakage of cold air.
As mentioned above, refrigerator of the present invention is when refrigerator doors is closed, and its near zone can fully cool off, and when door is opened, even the detecting gate sensor of opening or cutting out can both in time form air curtain when being out of order.
Below only be to describe the present invention in detail by an embodiment and accompanying drawing, obviously this is not a limitation of the present invention, and design of the present invention and protection domain are provided by every claim.
Claims (4)
1. refrigerator, this refrigerator has the casing of a formation refrigerating chamber,
The door of unlatching or closing cold room opening is housed on the described casing, and described refrigerator comprises:
Article one, near the cold air channel that described refrigerating chamber opening, has cold-air vent;
A dispatch cold air on described cold air channel makes it flow out from cold-air vent and forms air curtain, blocks the fan of described refrigerating chamber opening;
One is detected the door switch detecting element that described door is opened or closed;
A near element that reaches away from the temperature in door zone that detects described door;
A controlling organization, this mechanism detects that door is opened and detector unit when detecting near the temperature door and being higher than temperature away from the door zone at the door switch detecting element, controls described dispatch starting fan.
2. refrigerator according to claim 1 is characterized in that, described door switch detecting element is a press button, and when door was closed or opened, this press button was pressed respectively or is released.
3. refrigerator according to claim 1 is characterized in that, described detector unit comprises:
A near door detector unit that is arranged on the described refrigerating-chamber door,
And the temperature of refrigerating chamber detecting element on counter plate that is arranged on described refrigerating-chamber door.
4. method that produces at refrigerator inner control air curtain, described refrigerator has the casing of a formation refrigerating chamber, has on the described casing to open or the door of closing cold room opening a near cold air channel that has cold-air vent the refrigerating chamber opening; The fan that the dispatch cold air makes it flow out from cold-air vent on described cold air channel, the air curtain that wherein blocks described refrigerating chamber opening is flowed out from cold-air vent by described dispatch fan blow cool air and forms, and described control method comprises the steps:
Detecting described door opens or closes;
If described door is opened, control described dispatch starting fan;
Reach away from the regional temperature of described door near detecting described door;
When near the temperature the described door is higher than temperature away from the door zone, control described dispatch starting fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97113775A CN1109867C (en) | 1997-06-14 | 1997-06-14 | Refrigerator having device for generating air curtain and method for controlling air curtain generating operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97113775A CN1109867C (en) | 1997-06-14 | 1997-06-14 | Refrigerator having device for generating air curtain and method for controlling air curtain generating operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1202608A CN1202608A (en) | 1998-12-23 |
| CN1109867C true CN1109867C (en) | 2003-05-28 |
Family
ID=5172731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97113775A Expired - Fee Related CN1109867C (en) | 1997-06-14 | 1997-06-14 | Refrigerator having device for generating air curtain and method for controlling air curtain generating operation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1109867C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6131116B2 (en) * | 2013-06-14 | 2017-05-17 | アクア株式会社 | refrigerator |
| CN104344629B (en) * | 2014-01-13 | 2016-11-09 | 海尔集团公司 | The control method of air curtain generator in refrigerator and refrigerator |
| CN112137349A (en) * | 2019-06-27 | 2020-12-29 | 青岛海尔特种电冰柜有限公司 | Air curtain cabinet |
| CN113959168A (en) * | 2021-04-21 | 2022-01-21 | 海信（山东）冰箱有限公司 | Control mode of refrigerator |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058989A (en) * | 1975-12-22 | 1977-11-22 | General Electric Company | Refrigerator including air wall separating the freezer and fresh food portions |
| US4379391A (en) * | 1980-06-05 | 1983-04-12 | Rhee Jae W | Refrigerator |
| EP0345437A2 (en) * | 1988-06-08 | 1989-12-13 | INDUSTRIE ZANUSSI S.p.A. | Refrigerating apparatus with at least one compartment at even temperature and high relative humidity |
-
1997
- 1997-06-14 CN CN97113775A patent/CN1109867C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4058989A (en) * | 1975-12-22 | 1977-11-22 | General Electric Company | Refrigerator including air wall separating the freezer and fresh food portions |
| US4379391A (en) * | 1980-06-05 | 1983-04-12 | Rhee Jae W | Refrigerator |
| EP0345437A2 (en) * | 1988-06-08 | 1989-12-13 | INDUSTRIE ZANUSSI S.p.A. | Refrigerating apparatus with at least one compartment at even temperature and high relative humidity |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1202608A (en) | 1998-12-23 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030711 Address after: Seoul City, Korea Patentee after: Daewoo Electronics Co., Ltd. Address before: Seoul Patentee before: Daewoo Electronics Co., Ltd. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030528 Termination date: 20120614 |