CN112066631B - Refrigerator fan control method - Google Patents
Refrigerator fan control method Download PDFInfo
- Publication number
- CN112066631B CN112066631B CN201910500457.1A CN201910500457A CN112066631B CN 112066631 B CN112066631 B CN 112066631B CN 201910500457 A CN201910500457 A CN 201910500457A CN 112066631 B CN112066631 B CN 112066631B
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- Prior art keywords
- door body
- controlling
- opening
- door
- refrigerator
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001704 evaporation Methods 0.000 claims abstract description 60
- 230000008020 evaporation Effects 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 238000005057 refrigeration Methods 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption 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
- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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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
- F25D2700/02—Sensors detecting door opening
-
- 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
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
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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)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The invention provides a refrigerator fan control method, which comprises the following steps: detecting the opening and closing state of a door body, controlling the refrigeration system to operate according to a preset program when the door body is closed if the current door body is in the closing state, and detecting the opening and closing state of the compressor if the current door body is in the opening state; if the current compressor is in a starting state, controlling the evaporation fan to operate at a first rotating speed, and when the door opening time exceeds a preset value, controlling the evaporation fan to operate at a second rotating speed until the door body is closed; if the current compressor is in a shutdown state, monitoring the opening distance of the door body, controlling the evaporation fan to operate at different rotating speeds according to the opening distance of the door body, and controlling the whole system to operate according to a preset program when the door is closed until the door is closed when the door opening time exceeds a preset value. The refrigerator fan control method can effectively reduce the fluctuation of the temperature in the refrigerator, maintain the stable environment for storing articles inside and ensure the quality of the articles.
Description
Technical Field
The invention relates to a refrigerator fan control method.
Background
The existing air-cooled refrigerator stops rotating when the glass door is opened, a large amount of external hot air enters the refrigerator, the temperature rises relatively, and the quality of articles in the refrigerator is seriously influenced.
In view of the above, there is a need to improve the existing control method of the refrigerator fan to solve the above problems.
Disclosure of Invention
The invention aims to provide a refrigerator fan control method for preventing the temperature in a refrigerator from rising.
In order to achieve the aim, the invention provides a refrigerator fan control method which is characterized by comprising the following steps of:
detecting the opening and closing state of the door body, controlling the refrigeration system to operate according to a preset program when the door body is closed if the current door body is in the closed state, and detecting the opening and closing state of the compressor if the current door body is in the open state;
if the current compressor is in a starting state, controlling the evaporation fan to operate at a first rotating speed, and when the door opening time exceeds a preset value, controlling the evaporation fan to operate at a second rotating speed until the door body is closed;
if the current compressor is in a shutdown state, monitoring the opening distance of a door body through a distance sensor, controlling an evaporation fan to operate at different rotating speeds according to the opening distance of the door body, when the door opening time exceeds a preset value, controlling the whole system to operate until the door body is closed according to a preset program when the door is closed, when the opening distance of the door body is smaller than 1/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 10% -20%, when the opening distance of the door body is 1/5 to 2/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 30% -40%, when the opening distance of the door body is 2/5 to 3/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 50% -60%, when the opening distance of the door body is 3/5 to 4/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 70% -80%, and when the opening distance of the door body is larger than 4/5 of the length of the single door body, wherein the duty ratio of the current rotating speed of the evaporation fan to the maximum rotating speed is the ratio of the operation of the evaporation fan.
As a further improvement of the invention, when the evaporation fan operates at a first rotating speed, the duty ratio is 80% -100%, and when the evaporation fan operates at a second rotating speed, the duty ratio is 40% -60%.
As a further improvement of the invention, when the door body is opened, the accumulated door opening time of the door body is recorded.
As a further improvement of the invention, the preset value of the door opening time is 6 to 8min.
As a further improvement of the invention, the refrigerator comprises a distance sensor for monitoring the opening distance of the door body.
As a further improvement of the invention, the refrigerator comprises a magnetic sensor for monitoring the opening and closing states of the door body.
As a further improvement of the invention, the refrigerator is an air-cooled refrigerator and comprises a storage chamber and the refrigerating system for providing cold air for the storage chamber.
As a further improvement of the invention, the refrigerator is provided with air supply at the upper side of the storage chamber and air return at the lower side.
The invention has the beneficial effects that: according to the refrigerator fan control method, the opening and closing state of the door body, the opening and closing state of the compressor and the opening distance of the door body are judged, the evaporation fan is controlled to operate according to certain logic according to the opening time of the door body, the temperature in the refrigerator is prevented from rapidly rising, the fluctuation of the temperature in the refrigerator is reduced, the environment stability of internal stored articles is maintained, and the quality of the articles is guaranteed.
Drawings
Fig. 1 is a schematic view of the internal structure of the refrigerator of the present invention.
Fig. 2 is a flow chart of a refrigerator fan control method according to the present invention.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the accompanying drawings. The present invention is not limited to the embodiment, and structural, methodological, or functional changes made by one of ordinary skill in the art according to the embodiment are included in the scope of the present invention.
Please refer to fig. 1 and fig. 2, which illustrate a fan control method of a refrigerator according to the present invention, the refrigerator is an air-cooled refrigerator, the refrigerator includes a magnetic sensor for monitoring the open/close state of a door and a distance sensor for monitoring the open distance of the door, the door mechanism of the refrigerator is a push-pull glass door, which includes an upper layer of glass plate and a lower layer of glass plate that can slide horizontally, and the two layers of glass plates have the same structural size, and when the refrigerator is opened, only one of the glass plates is moved horizontally while the other one is kept still, so the maximum open distance of the refrigerator is the length of a single glass plate, i.e. the length of a single door.
Please refer to fig. 1, the freezer include storing room 1 and be used for to storing room 1 provides air conditioning refrigerating system, refrigerating system specifically includes evaporimeter 2, evaporation fan 3, air-out passageway 4, air outlet 5, return air inlet 6 and return air passageway 7, evaporation fan 3 with evaporimeter 2 is located storing room 1's right side, air-out passageway 4 with return air passageway 7 is located respectively storing room 1's upper and lower side just is linked together with the evaporating room respectively, the freezer in storing room 1's upside air-out, downside return air, when the door body is opened, air outlet 5 forms the isolated outside temperature of air curtain.
Fig. 2 is a schematic flow chart of a refrigerator fan control method according to the present invention, which includes the following steps:
the method comprises the steps that firstly, the opening and closing state of a door body is detected, if the current door body is in a closed state, the refrigerating system is controlled to operate according to a preset program during door closing, and if the current door body is in an open state, the opening and closing state of a compressor is detected;
when the door body is opened, the accumulated door opening time of the door body is recorded, so that the door body opening time can be accurately calculated, the rotating speed of the evaporation fan 3 can be adjusted more timely in the operation of a subsequent system, and the normal operation of the refrigerator is ensured.
Secondly, if the current compressor is in a starting state, controlling the evaporation fan 3 to operate at a first rotating speed, and when the door opening time exceeds a preset value, controlling the evaporation fan 3 to operate at a second rotating speed until the door body is closed; if the current compressor is in a shutdown state, monitoring the opening distance of the door body, controlling the evaporation fan 3 to operate at different rotating speeds according to the opening distance of the door body, and controlling the whole system to operate according to a preset program when the door is closed until the door is closed when the door opening time exceeds a preset value.
When the evaporation fan 3 operates at a first rotation speed, the duty ratio is 80% to 100%, when the evaporation fan 3 operates at a second rotation speed, the duty ratio is 40% to 60%, it should be explained that the duty ratio is the ratio of the current operation rotation speed of the evaporation fan 3 to the maximum rotation speed thereof, that is, when the evaporation fan 3 operates at the first rotation speed, the duty ratio is 80% to 100%, the rotation speed of the evaporation fan 3 is 80% to 100% of the maximum wind speed, and when the evaporation fan 3 operates at the second rotation speed, the rotation speed of the evaporation fan 3 is 40% to 60% of the maximum wind speed.
In this embodiment, when the compressor is the on state, the preferred 100% of duty cycle when the evaporation fan 3 moves according to first rotational speed, this is because it is higher to represent the inside temperature of freezer when the compressor is in the on state, and the door body is in the open mode simultaneously, and ambient temperature is great to the inside interference of freezer, evaporation fan 3 moves with maximum rotational speed, can not only reduce the inside temperature of freezer fast, simultaneously the air curtain that evaporation fan 3 produced when moving with maximum speed is best to the isolation effect in the external world, and ambient temperature is minimum to temperature interference in the freezer promptly.
In this embodiment, the preset value of the door opening time is 6 to 8min, preferably 7min, because when the door body is opened beyond the preset value, whether the compressor is running or not, and whether the evaporation fan 3 is running at the first rotating speed or the second rotating speed, the external temperature is enough to disturb the temperature inside the refrigerator to a great extent, thereby affecting the quality of the articles in the refrigerator.
When the time of opening the door exceeds 7min and the compressor is the on-state, the preferred 50% duty cycle that evaporation fan 3 ran according to the second rotational speed and ran according to the second rotational speed, this because when the time of opening the door exceeds 7min, even the air curtain exists, but the inside temperature of freezer still can rise, lets again this moment evaporation fan 3 keeps the maximum rotational speed operation, and a large amount of damp and hot air in the freezer can get into in the evaporation cavity through return air inlet 6 to cause evaporimeter 2 to frost seriously, and then influence refrigeration efficiency. Therefore, not only is the frosting of the evaporator 2 reduced by reducing the rotating speed of the evaporation fan 3, but also the air curtain of the evaporation fan 3 can still isolate the outside temperature, and the energy consumption can be further reduced by reducing the rotating speed of the evaporation fan 3.
In this embodiment, when the compressor is in a shutdown state, the opening distance of the door body is monitored by a distance sensor, when the opening distance of the door body is less than 1/5 of the length of the single door body, the duty ratio of the evaporation fan 3 is 10% -20%, preferably 20%, when the opening distance of the door body is 1/5 to 2/5 of the length of the single door body, the duty ratio of the evaporation fan 3 is 30% -40%, preferably 40%, when the opening distance of the door body is 2/5 to 3/5 of the length of the single door body, the duty ratio of the evaporation fan 3 is 50% -60%, preferably 60%, when the opening distance of the door body is 3/5 to 4/5 of the length of the single door body, the duty ratio of the evaporation fan 3 is 70% -80%, preferably 60%, and when the opening distance of the door body is greater than 4/5 of the length of the single door body, the duty ratio of the evaporation fan 3 is 90% -100%, preferably 100%.
Open according to the door body and to control more rationally the operation of evaporation fan 3, open when the door body apart from less, 3 rotational speeds of evaporation fan are also corresponding less, open when the door body apart from great, 3 rotational speeds of evaporation fan are also corresponding great, so not only can reduce the interference of ambient temperature to the inside temperature of freezer, have greatly reduced moreover the consumption of 3 operations of evaporation fan increases life.
When the door opening time exceeds 7min, the whole system is controlled to operate according to a preset program when the door is closed until the door body is closed, and even if an air curtain has an isolation effect, the long-time door opening state still enables the temperature inside the refrigerator to rise, so that the quality of articles is influenced, and therefore the whole system needs to be controlled to operate according to the preset program when the door is closed to reduce the temperature inside the refrigerator until the door body is closed.
In conclusion, the refrigerator fan control method controls the evaporation fan 3 to operate according to different rotating speeds according to the door opening time by judging the opening and closing state of the door body, the opening and closing state of the compressor and the opening distance of the door body, so that the temperature in the refrigerator is prevented from rapidly rising, the fluctuation of the temperature in the refrigerator is reduced, the environment for storing articles inside is maintained to be stable, and the quality of the articles is ensured.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (8)
1. A refrigerator fan control method is characterized by comprising the following steps:
detecting the opening and closing state of the door body, controlling the refrigeration system to operate according to a preset program when the door body is closed if the current door body is in the closed state, and detecting the opening and closing state of the compressor if the current door body is in the open state;
if the current compressor is in a starting state, controlling the evaporation fan to operate at a first rotating speed, and when the door opening time exceeds a preset value, controlling the evaporation fan to operate at a second rotating speed until the door body is closed;
if the current compressor is in a shutdown state, monitoring the opening distance of a door body through a distance sensor, controlling an evaporation fan to operate at different rotating speeds according to the opening distance of the door body, when the door opening time exceeds a preset value, controlling the whole system to operate until the door body is closed according to a preset program when the door is closed, when the opening distance of the door body is smaller than 1/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 10% -20%, when the opening distance of the door body is 1/5 to 2/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 30% -40%, when the opening distance of the door body is 2/5 to 3/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 50% -60%, when the opening distance of the door body is 3/5 to 4/5 of the length of the single door body, controlling the duty ratio of the evaporation fan to be 70% -80%, and when the opening distance of the door body is larger than 4/5 of the length of the single door body, wherein the duty ratio of the current rotating speed of the evaporation fan to the maximum rotating speed is the ratio of the operation of the evaporation fan.
2. The freezer fan control method of claim 1, wherein: the duty ratio is 80% -100% when the evaporation fan operates at the first rotating speed, and the duty ratio is 40% -60% when the evaporation fan operates at the second rotating speed.
3. The freezer fan control method of claim 1, wherein: and when the door body is opened, the accumulated door opening time of the door body is recorded.
4. The freezer fan control method of claim 1, wherein: the preset value of the door opening time is 6 to 8min.
5. The refrigerator fan control method of claim 1, wherein: the freezer includes the distance inductor of monitoring door body opening distance.
6. The freezer fan control method of claim 1, wherein: the freezer includes the magnetic sensor who monitors door body open and close state.
7. The refrigerator fan control method of claim 1, wherein the refrigerator is an air-cooled refrigerator and comprises a storage compartment and the refrigerating system for providing cold air to the storage compartment.
8. The refrigerator fan control method of claim 1, wherein the refrigerator is provided with air supply at the upper side and air return at the lower side of the storage compartment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500457.1A CN112066631B (en) | 2019-06-11 | 2019-06-11 | Refrigerator fan control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500457.1A CN112066631B (en) | 2019-06-11 | 2019-06-11 | Refrigerator fan control method |
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| Publication Number | Publication Date |
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| CN112066631A CN112066631A (en) | 2020-12-11 |
| CN112066631B true CN112066631B (en) | 2023-02-17 |
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| CN201910500457.1A Active CN112066631B (en) | 2019-06-11 | 2019-06-11 | Refrigerator fan control method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114719495A (en) * | 2021-01-06 | 2022-07-08 | 青岛海尔电冰箱有限公司 | Refrigerator control method and refrigerator |
| CN115342579B (en) * | 2022-08-01 | 2024-06-21 | 北京盛聚食品有限公司 | Cold Storage |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5127877B2 (en) * | 2010-05-13 | 2013-01-23 | 三菱電機株式会社 | Open showcase |
| KR101586370B1 (en) * | 2013-12-26 | 2016-01-19 | 동부대우전자 주식회사 | Refrigerator control method |
| DE102016211438A1 (en) * | 2016-06-27 | 2017-12-28 | BSH Hausgeräte GmbH | The refrigerator |
| JP2018079068A (en) * | 2016-11-16 | 2018-05-24 | 富士電機株式会社 | Show case |
| CN109489335B (en) * | 2017-09-13 | 2020-12-25 | 青岛海尔特种电冰柜有限公司 | Refrigerator fan control method |
| CN109489222B (en) * | 2017-09-13 | 2021-04-09 | 青岛海尔特种电冰柜有限公司 | Refrigerator fan control method |
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Address after: 266000 Haier Industrial Park, Qingdao Economic and Technological Development Zone, Shandong Province Applicant after: QINGDAO HAIER SPECIAL FREEZER Co.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266000 Haier Industrial Park, Qingdao Economic and Technological Development Zone, Shandong Province Applicant before: QINGDAO HAIER SPECIAL FREEZER Co.,Ltd. Applicant before: QINGDAO HAIER JOINT STOCK Co.,Ltd. |
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