CN111981765B - Oxygen reduction control method of refrigeration equipment - Google Patents
Oxygen reduction control method of refrigeration equipment Download PDFInfo
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- CN111981765B CN111981765B CN201910438989.7A CN201910438989A CN111981765B CN 111981765 B CN111981765 B CN 111981765B CN 201910438989 A CN201910438989 A CN 201910438989A CN 111981765 B CN111981765 B CN 111981765B
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- reduction device
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- refrigeration equipment
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 239000001301 oxygen Substances 0.000 title claims abstract description 156
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 156
- 230000009467 reduction Effects 0.000 title claims abstract description 129
- 238000005057 refrigeration Methods 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000006698 induction Effects 0.000 claims abstract description 5
- 230000008569 process Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 230000003245 working effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011946 reduction process 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
-
- 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
-
- 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
- F25D17/062—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 in household refrigerators
-
- 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
- F25D23/00—General constructional features
-
- 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
- F25D2700/04—Sensors detecting the presence of a person
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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 an oxygen reduction control method of refrigeration equipment, which comprises the steps of obtaining a starting signal of an oxygen reduction device in the refrigeration equipment, controlling the oxygen reduction device to be started when the starting signal is received, controlling the oxygen reduction device to work under a preset voltage U1 in cooperation with a fan arranged on the oxygen reduction device, and simultaneously obtaining a sensing signal of a human body sensing device on the refrigeration device; when the human body sensing device detects that the user is within a certain distance s of the refrigeration equipment, the fan is controlled to reduce the rotating speed. By the oxygen reduction control method, the human body induction device is matched with the oxygen reduction device, so that the working load of the oxygen reduction device is reduced, and the working effect is improved.
Description
Technical Field
The invention relates to the technical field of fresh keeping and household appliances, in particular to an oxygen reduction control method of refrigeration equipment.
Background
At present, the refrigerator adopts the air-conditioning preservation technology to carry out oxygen reduction preservation, and the method for removing oxygen by using an electrolysis method is a new emerging method and has the advantages of safety, environmental protection, low energy consumption, stable oxygen removal speed and the like. The current technical solution is to install an electrode device on a storage box in a refrigerator and to supply liquid water to an electrolysis device. This technology dates back to 1821, and german biologists found that fruits can reduce metabolism in low oxygen environments. However, to date, this technique has many device limitations. When the refrigerator is applied to a fresh-keeping device, how to accurately control the operation of the oxygen reduction device and carry out the matching operation according to the overall use condition of the refrigerator still needs to be researched.
Therefore, there is a need to provide an improved oxygen reduction control method of a refrigeration apparatus to solve the above problems.
Disclosure of Invention
The invention aims to provide an oxygen reduction control method of refrigeration equipment for effectively controlling an oxygen reduction process.
In order to achieve the aim, the invention provides an oxygen reduction control method of refrigeration equipment, which comprises the steps of obtaining a starting signal of an oxygen reduction device in the refrigeration equipment, controlling the oxygen reduction device to be started when the starting signal is received, controlling the oxygen reduction device to work under a preset voltage U1 in cooperation with a fan arranged on the oxygen reduction device, and simultaneously obtaining a sensing signal of a human body sensing device on the refrigeration device; when the human body sensing device detects that the user is within a certain distance s of the refrigeration equipment, the fan is controlled to reduce the rotating speed.
As a further development of the invention, the aforementioned certain distance s is not more than 2 meters.
As a further improvement of the invention, the reduction of the rotating speed of the fan is carried out by controlling the voltage of the fan, and the voltage of the fan is gradually adjusted according to the distance between the user and the refrigeration equipment detected by the human body induction device.
As a further improvement of the invention, when the distance between a user and the refrigeration equipment is between 2 meters and 1.5 meters, the fan is controlled to work under the voltage of U2, and U2 is smaller than U1; when the distance between a user and the refrigeration equipment is between 1.5 meters and 1 meter, the fan works under the voltage U3, and U3 is smaller than U2; when the distance between a user and the refrigeration equipment is between 1 meter and 0.5 meter, the fan works under the voltage U4, and U4 is smaller than U3; when the distance between a user and the refrigeration equipment is less than 0.5 meter, the fan works under the voltage U5, and U5 is less than U4.
As a further improvement of the invention, U1 is 12V, U2 is 10V, U3 is 8V, U4 is 6V, and U5 is 4V.
As a further improvement of the present invention, the oxygen reduction control method further includes: and in the working process of the oxygen reduction device, judging whether a door body of the refrigeration equipment is opened, and if so, controlling the fan to stop rotating.
As a further improvement of the present invention, the oxygen reduction control method further includes: and recording the working time T of the oxygen reduction device while the oxygen reduction device works, and controlling the oxygen reduction device and the fan to stop working when the working time T of the oxygen reduction device reaches the preset time T1.
As a further improvement of the present invention, the oxygen reduction control method further includes: and in the working process of the oxygen reduction device, judging whether a door body of the refrigeration equipment is opened or not, if so, controlling the fan to stop rotating, then judging whether a storage box provided with the oxygen reduction device in the refrigeration equipment is opened or not, if so, closing the oxygen reduction device, and after the storage box is closed, starting the oxygen reduction device and recording the working time t of the oxygen reduction device again.
As a further development of the invention, T1 was 1 hour.
As a further improvement of the present invention, the oxygen reduction control method further includes: the method comprises the steps of obtaining detection information of an oxygen sensor on a storage box of an oxygen reduction device arranged in the refrigeration equipment, and controlling the oxygen reduction device and a fan to start working when the oxygen sensor detects that the real-time oxygen content in the storage box reaches a preset threshold value of the oxygen content.
The invention has the beneficial effects that: the refrigeration equipment controls the starting of the oxygen reduction device and the fan through the human body sensing device, so that the condition that more air enters a storage space when the refrigeration equipment is started is avoided, the fan continuously blows wet air to the oxygen reduction device to enable the oxygen reduction device to continuously work, the storage space is communicated with the outside at the moment, the oxygen content is higher, and oxygen is continuously consumed to generate water; furthermore, the invention can avoid the risk of damage of the fan due to direct power-off in a high-speed rotation state on one hand by controlling the fan to reduce the rotating speed according to the sensing data of the human body sensing device, and can avoid the phenomenon of leading excessive air into the oxygen reduction device due to inertial motion of the fan when the door body of the refrigeration equipment is opened in a state of keeping the oxygen reduction device in a rotating speed reduction mode.
Drawings
FIG. 1 is a flow chart of the oxygen reduction control method of the refrigeration apparatus of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention will be described in detail hereinafter with reference to an embodiment shown in the drawings. These embodiments are not intended to limit the present invention, and structural and functional changes made by those skilled in the art according to these embodiments are included in the scope of the present invention.
The refrigeration equipment comprises a box body, a door body for opening or closing the box body and a control device, wherein a storage box with a storage space is arranged in the box body. In the present invention, the refrigeration device is a refrigerator, and other structures and operating principles of the refrigerator are known to those skilled in the art, and the present invention does not improve other structures or functions of the refrigerator, and will not be described in detail herein. Of course, the refrigeration equipment can also be a fresh-keeping cabinet or other equipment capable of realizing refrigeration and cold insulation functions.
In the invention, the refrigeration equipment also comprises an oxygen reduction device for performing oxygen reduction control on the storage space, a fan matched with the oxygen reduction device and a human body induction device. The oxygen reduction device and the fan are respectively electrically connected with the control device, and the control device can be integrated in a control system of the refrigeration equipment. The oxygen reduction device is including the positive pole, proton exchange membrane and the negative pole that set gradually, and the fan constantly rotates in order to increase the moisture circulation, and the moisture in the air is carried to the positive pole department of oxygen reduction device, the positive pole department of oxygen reduction device circular telegram back, the moisture at positive pole department is decomposed into hydrogen ion to transmit hydrogen ion to the negative pole through proton exchange membrane, because storing space and negative pole intercommunication, consequently hydrogen ion produces water with the oxygen reaction at the negative pole, constantly consumes the inside oxygen in storing space promptly, with the oxygen volume that reduces storing space, the fresh-keeping period of extension article.
Referring to fig. 1, after the refrigeration equipment is powered on, the compressor starts to work, the human body sensing device starts to be started, and after a period of time, a starting signal of the oxygen reduction device can be sent to the control device. In the present invention, this state lasts for about five minutes, and the oxygen reduction device and the blower are started.
The oxygen reduction control method of the refrigeration equipment comprises the following steps: the starting signal of the oxygen reduction device in the refrigeration equipment is obtained, when the starting signal is received, the oxygen reduction device is controlled to be started, the oxygen reduction device is controlled to work under the preset voltage U1 in cooperation with a fan arranged, and meanwhile, the sensing signal of the human body sensing device on the refrigeration device is obtained.
When the oxygen reduction device is started and the fan works under the preset voltage U1, the oxygen reduction control method further comprises the following steps: and synchronously recording the working time T of the oxygen reduction device, and controlling the oxygen reduction device and the fan to stop working when the working time T of the oxygen reduction device reaches the preset time T1. When the working time T of the oxygen reduction device does not reach the preset time T1, the oxygen reduction device can be controlled by judging the distance of the user through the human body sensing device.
In the in-service use process, refrigeration plant also can appear and not opened for a long time, consequently, at this in-process, oxygen reduction device and fan will continue work, in order to avoid work load too big, or excessively carry out the electrolysis reaction, consequently, carry out the operating time record to oxygen reduction device to when presetting operating time and reaching a definite value, oxygen reduction device and fan stop working a period, can not influence the oxygen reduction effect in storing space. Generally, the working time reaches 1 hour, namely T1 is 1 hour, and the oxygen reduction operation can be stopped when the refrigeration equipment is not turned on, so that the overlarge working load of the refrigeration equipment is avoided, and the electricity-saving effect can be realized.
In the invention, the human body sensing device on the refrigeration equipment is set to sense whether a user approaches the refrigeration equipment and sense the distance between the user and the refrigeration equipment, when the user is in a certain distance s range of the refrigeration equipment, the possibility that the user uses the refrigeration equipment is extremely high, therefore, the rotating speed of the fan is reduced, more air enters the storage space in the use process of the refrigeration equipment, the fan continuously blows wet air to the oxygen reduction device, the oxygen reduction device is enabled to continuously work, the storage space is communicated with the outside at the moment, the oxygen content is higher, the oxygen is continuously consumed to generate water, the wind speed of the fan is gradually reduced, furthermore, the invention can avoid the risk of damage of the fan due to direct power failure in a high-speed rotation state on one hand, and on the other hand, by the mode of reducing the rotating speed through controlling the fan according to the sensing data of the human body sensing device, the phenomenon that when a refrigeration equipment door body is opened, too much air is led into the oxygen reduction device due to the inertial motion of the fan can be avoided under the condition that the oxygen reduction device is kept in the working state.
In practical use of the refrigeration equipment, the certain distance s is not more than 2 meters. Namely, when the human body sensing device senses that the user is within two meters of the refrigeration equipment, the information is sent to the control device, and the fan is decelerated. In a preferred embodiment of the present invention, the reduction of the rotation speed of the fan is performed by controlling a fan voltage, and the control device gradually adjusts the fan voltage according to a distance between the user and the refrigeration equipment detected by the human body sensing device.
The method specifically comprises the following steps: when the human body sensing device senses that the distance from the user to the refrigeration equipment is between 2 meters and 1.5 meters, the fan is controlled to work under the voltage U2, and U2 is smaller than U1; when the distance between a user and the refrigeration equipment is between 1.5 meters and 1 meter, the fan works under the voltage U3, and U3 is smaller than U2; when the distance between a user and the refrigeration equipment is between 1 meter and 0.5 meter, the fan works under the voltage U4, and U4 is smaller than U3; when the distance between a user and the refrigeration equipment is less than 0.5 meter, the fan works under the voltage U5, and U5 is less than U4. In the present invention, U1 is 12V, U2 is 10V, U3 is 8V, U4 is 6V, and U5 is 4V.
That is, in the working process of the oxygen reduction device, the fan works under the preset voltage of 12V, the rotating speed is high, more moisture can be blown to the periphery of the anode of the oxygen reduction device, so that the electrolytic reaction of the anode is promoted to be carried out towards the water decomposition side, along with the fact that the refrigeration equipment is closer and closer in a user, in order to ensure the working effect of the oxygen reduction device and achieve the effects of electricity saving and the like, the working voltage of the fan is reduced step by step, the rotating speed of the fan is also reduced gradually, the moisture blown to the anode is reduced, and the oxygen reduction device is prevented from working continuously under high load.
When the human body sensing device senses that the user approaches and is in a close distance, namely the user is likely to open and take the door body of the refrigeration equipment, the oxygen reduction control method further comprises the following steps: and in the working process of the oxygen reduction device, judging whether a door body of the refrigeration equipment is opened, and if so, controlling the fan to stop rotating.
The refrigeration equipment door body is opened, a large amount of air gushes into the refrigeration equipment, if the fan rotates continuously, a large amount of moisture is brought into the vicinity of the oxygen reduction device, so that the oxygen reduction device is promoted to continuously perform electrolytic reaction, the working load of the oxygen reduction device is increased, and the fan needs to be controlled to stop rotating so as to avoid overlarge working load of the oxygen reduction device.
In a preferred embodiment of the present invention, the oxygen reduction device performs oxygen reduction control on the storage space of the storage box, and in the working process of the oxygen reduction device, after determining whether a refrigeration equipment door body is opened to control the fan to be deactivated, the oxygen reduction control method further includes: and judging whether the storage box is opened or not, if so, starting the oxygen reduction device and recording the working time t of the oxygen reduction device again after the storage box is closed.
The oxygen reduction device is applied to the inside oxygen reduction control of storing box, and the back is opened to the storing box, gets into a large amount of air, and at this moment, oxygen reduction device and fan stop work can avoid the work load too big, and the back is closed to the storing box, because oxygen content increases, and the during operation is restarted to the oxygen reduction device, needs to take notes operating time t again.
The refrigeration equipment further comprises an oxygen sensor which is arranged in the storage box and used for detecting the oxygen content in the storage space, and the oxygen reduction control method further comprises the following steps: the detection information of the oxygen sensor in the refrigeration equipment is acquired, and when the oxygen sensor detects that the real-time oxygen content in the storage box reaches a preset threshold value of the oxygen content, the control device controls the oxygen reduction device and the fan to start working. After the oxygen sensor is additionally arranged in the storage box, the oxygen content in the storage space can be accurately detected, the fact that the internal real-time oxygen content is lower than the preset threshold value of the oxygen content is ensured, the article preservation effect is guaranteed, and the starting of the oxygen reduction device and the fan is effectively controlled.
The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a refrigeration plant's oxygen reduction control method, refrigeration plant includes the box and opens or close the door body and the controlling means of box, be provided with the storage box that has storing space in the box, refrigeration plant still includes the oxygen reduction device who carries out the oxygen reduction control to the storing space of storage box, with fan and the human induction system that oxygen reduction device cooperation was used, respectively with oxygen reduction device and fan electric connection's controlling means, oxygen reduction device is including the positive pole, proton exchange membrane and the negative pole that set gradually, and the fan constantly rotates in order to increase the moisture circulation, carries the moisture in the air to oxygen reduction device's positive pole department, its characterized in that: the oxygen reduction control method comprises the following steps,
acquiring a starting signal of an oxygen reduction device in the refrigeration equipment, controlling the oxygen reduction device to be started when the starting signal is received, controlling the oxygen reduction device to work under a preset voltage U1 in cooperation with a fan arranged on the oxygen reduction device, and acquiring a sensing signal of a human body sensing device on the refrigeration equipment;
when the human body sensing device detects that a user is within a certain distance s of the refrigeration equipment, the fan is controlled to reduce the rotating speed, whether a door body of the refrigeration equipment is opened or not is judged in the working process of the oxygen reduction device, and if yes, the fan is controlled to stop rotating;
and recording the working time T of the oxygen reduction device while the oxygen reduction device works, and controlling the oxygen reduction device and the fan to stop working when the working time T reaches the preset time T1.
2. The oxygen reduction control method of a refrigeration apparatus according to claim 1, characterized in that: the certain distance s is not more than 2 meters.
3. The oxygen reduction control method of a refrigeration apparatus according to claim 2, characterized in that: the fan reduces the rotating speed by controlling the voltage of the fan, and the voltage of the fan is gradually adjusted according to the distance between a user and the refrigeration equipment detected by the human body induction device.
4. The oxygen reduction control method of a refrigeration apparatus according to claim 3, characterized in that: when the distance between a user and the refrigeration equipment is between 2 meters and 1.5 meters, controlling the fan to work under the voltage U2, wherein U2 is smaller than U1; when the distance between a user and the refrigeration equipment is between 1.5 meters and 1 meter, the fan works under the voltage U3, and U3 is smaller than U2; when the distance between a user and the refrigeration equipment is between 1 meter and 0.5 meter, the fan works under the voltage U4, and U4 is smaller than U3, and when the distance between the user and the refrigeration equipment is smaller than 0.5 meter, the fan works under the voltage U5, and U5 is smaller than U4.
5. The oxygen reduction control method of a refrigeration apparatus according to claim 4, characterized in that: u1 is 12V, U2 is 10V, U3 is 8V, U4 is 6V, and U5 is 4V.
6. The oxygen reduction control method of a refrigeration apparatus according to claim 1, characterized in that: the oxygen reduction control method further includes: and in the working process of the oxygen reduction device, judging whether a door body of the refrigeration equipment is opened or not, if so, controlling the fan to stop rotating, then judging whether a storage box provided with the oxygen reduction device in the refrigeration equipment is opened or not, if so, closing the oxygen reduction device, and after the storage box is closed, starting the oxygen reduction device and recording the working time t of the oxygen reduction device again.
7. The oxygen reduction control method of a refrigeration apparatus according to claim 1, characterized in that: t1 was 1 hour.
8. The oxygen reduction control method of a refrigeration apparatus according to claim 1, characterized in that: the oxygen reduction control method further includes: the method comprises the steps of obtaining detection information of an oxygen sensor on a storage box of an oxygen reduction device arranged in the refrigeration equipment, and controlling the oxygen reduction device and a fan to start working when the oxygen sensor detects that the real-time oxygen content in the storage box reaches a preset threshold value of the oxygen content.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438989.7A CN111981765B (en) | 2019-05-24 | 2019-05-24 | Oxygen reduction control method of refrigeration equipment |
| PCT/CN2020/072152 WO2020238258A1 (en) | 2019-05-24 | 2020-01-15 | Oxygen reduction control method for refrigeration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910438989.7A CN111981765B (en) | 2019-05-24 | 2019-05-24 | Oxygen reduction control method of refrigeration equipment |
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| CN111981765A CN111981765A (en) | 2020-11-24 |
| CN111981765B true CN111981765B (en) | 2021-12-21 |
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| WO2020238258A1 (en) | 2020-12-03 |
| CN111981765A (en) | 2020-11-24 |
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