CN-121993970-A - Refrigerator and control method thereof

CN121993970ACN 121993970 ACN121993970 ACN 121993970ACN-121993970-A

Abstract

The invention provides a refrigerator and a control method thereof. The refrigerator comprises a refrigerator body, a gas treatment module and a gas distribution module, wherein a first fresh-keeping compartment and a second fresh-keeping compartment are arranged in the refrigerator body, the gas treatment module is used for forming fresh-keeping gas, the gas distribution module comprises a first gas distribution channel which is communicated with the gas treatment module and the first fresh-keeping compartment, a second gas distribution channel which is communicated with the gas treatment module and the second fresh-keeping compartment, a fan used for driving the fresh-keeping gas to flow from the gas treatment module to the first gas distribution channel and the second gas distribution channel, and a gravity baffle plate arranged at the second gas distribution channel, wherein the fan is provided with more than two gears with different rotating speeds and corresponds to different gears, and the gravity baffle plate rotates to different angles under the driving of the air flow in the second gas distribution channel. In this way, the ratio of fresh air to the second air distribution passage can be adjusted to cope with different refrigerator situations.

Inventors

MIAO JIANLIN
OUYANG JIA
LI CHUNYANG
ZHANG HAO

Assignees

青岛海尔电冰箱有限公司
海尔智家股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241108

Claims (15)

1. A refrigerator, comprising: The box body is internally provided with a first fresh-keeping compartment and a second fresh-keeping compartment; a gas treatment module for forming a fresh-keeping gas; The air distribution module comprises a first air distribution channel communicated with the air treatment module and the first fresh-keeping compartment, a second air distribution channel communicated with the air treatment module and the second fresh-keeping compartment, a fan used for driving fresh-keeping air to flow from the air treatment module to the first air distribution channel and the second air distribution channel, and a gravity baffle arranged at the second air distribution channel; The fan is provided with more than two gears with different rotating speeds and corresponds to different gears, and the gravity baffle plate rotates to different angles under the driving of air flow in the second air distribution channel.
2. The refrigerator of claim 1, wherein the first air distribution channel and the second air distribution channel are arranged in parallel.
3. The refrigerator of claim 1, wherein when the rotational speed of the fan does not exceed a first threshold v01, the gravity baffle cannot be driven to rotate by the air flow, and completely shields the second air distribution channel; When the rotating speed of the fan reaches above a second threshold v02, the gravity baffle plate is driven by the air flow to rotate by an angle X, and the gravity baffle plate of the gravity baffle plate completely opens the second air distribution channel.
4. The refrigerator of claim 3, wherein the blower is provided with a first gear of a rotation speed v1 and a second gear of a rotation speed v2, v1 is equal to or less than v01, v02 is equal to or less than v2; the fan also has a third gear of the rotation speed v3, v01< v3< v02.
5. The refrigerator of claim 4, wherein the gravity baffle is perpendicular to the extending direction of the second air distribution channel when the fan is in the first gear, and wherein the included angle between the gravity baffle and the extending direction of the second air distribution channel is reduced step by step when the fan is in the first gear, the third gear and the second gear.
6. The refrigerator of claim 1, further comprising a common channel in communication between the gas treatment module and the first gas distribution channel and between the gas treatment module and the second gas distribution channel; the fan is arranged in the public channel.
7. The refrigerator of claim 1, wherein the gas treatment module and the gas distribution module are provided as an integrated module; One of the first fresh-keeping compartment and the second fresh-keeping compartment is positioned above the integrated module, and the other is positioned at the side of the integrated module; The first air distribution channel and the second air distribution channel are positioned in the integrated module and are distributed in an up-down layered mode.
8. The refrigerator of claim 7, wherein the first air distribution channel has a first air distribution port formed on the integrated module, and the first air distribution port is connected with the first air supply hole of the first fresh-keeping compartment in an up-down plug connection manner; the second air distribution channel is provided with a second air distribution port formed on the integrated module, and the second air distribution port is in butt joint with a second air supply hole of the first fresh-keeping compartment; the gravity baffle plate is arranged at the second air distribution opening and used for shielding the second air distribution opening, and the free lower end of the gravity baffle plate rotates towards the second air supply hole under the driving of the air flow flowing out of the second air distribution opening.
9. The refrigerator of claim 7, wherein the gas distribution module further comprises a first gas return channel communicating the gas treatment module with the first fresh food compartment, and a second gas return channel communicating the gas treatment module with the second fresh food compartment; the first air return channel and the first air distribution channel are arranged in the same layer, and the second air return channel and the second air distribution channel are arranged in the same layer.
10. The refrigerator of claim 9, wherein the gas treatment module comprises a process cartridge and a gas treatment unit positioned in the process cartridge, the process cartridge is provided with a gas outlet for fresh-keeping gas to flow out and a gas inlet for gas to flow in, and the gas treatment unit is used for forming fresh-keeping gas; The first air return channel and the second air return channel are communicated with the inside of the processing box through the air inlet, and the first air distribution channel and the second air distribution channel are communicated with the inside of the processing box through the air outlet.
11. The refrigerator according to claim 1, the refrigerator is characterized by further comprising: A first door body for opening and closing the first fresh-keeping compartment and a second door body for opening and closing the second fresh-keeping compartment, and A control system, comprising: The first annunciator is used for sensing the opening and closing of the first door body; A second annunciator for sensing the opening and closing of the second door body, and And the controller is electrically connected with the first annunciator, the second annunciator, the fan and the gas treatment module, and controls the operation of the fan and the gas treatment module according to signals sensed by the first annunciator and the second annunciator.
12. A control method of a refrigerator according to any one of claims 1 to 11, characterized in that the control method comprises the steps of: S1, monitoring whether a first fresh-keeping compartment and a second fresh-keeping compartment are closed, if so, controlling the fan to be started, controlling the rotating speed v2, controlling the gas treatment module to be started, and starting timing, wherein a second threshold value v02 is less than or equal to v2; s2, monitoring whether the first fresh-keeping compartment and the second fresh-keeping compartment are opened or not in the target time after timing; S3, if the first fresh-keeping compartment and the second fresh-keeping compartment are both opened in the step S2, controlling the gas treatment module to be closed, enabling the fan to be kept open, and returning to the step S1; And S4, if only one of the first fresh-keeping compartment and the second fresh-keeping compartment is monitored to be opened in the step S2, controlling the gas treatment module to keep running, closing the fan or reducing the rotating speed to be below a first threshold value v01, wherein v01 is smaller than v02.
13. The control method of a refrigerator according to claim 12, further comprising the steps of: S5, if the first fresh-keeping compartment and the second fresh-keeping compartment are not opened in the step S2, stopping the fan and the gas treatment module after reaching the target duration, starting timing, and entering into the step S6; S6, monitoring whether the first fresh-keeping compartment and the second fresh-keeping compartment are opened or not within a preset interval time after timing; S7, if the first fresh-keeping compartment and the second fresh-keeping compartment are not opened in the step S6, controlling the fan to be opened and the rotating speed v2 'to be opened when the timing reaches the preset interval time, continuously operating the second target time, stopping the fan and the gas treatment module, and returning to the step S1 after the second preset interval time, wherein v02 is less than or equal to v2' isless than or equal to v2; s8, if the first fresh-keeping compartment and/or the second fresh-keeping compartment are/is monitored to be opened in the step S6, the gas treatment module is controlled to be closed, the fan is controlled to be opened, and the step S1 is returned; the second target time length is smaller than the target time length, and the second preset interval time length is not smaller than the preset interval time length.
14. The control method of a refrigerator according to claim 13, wherein the rotational speed v2"> v2 of the blower fan in step S3 and step S8.
15. The control method of a refrigerator according to claim 13, wherein, Step S4, if the first fresh-keeping compartment is monitored to be opened and the second fresh-keeping compartment is monitored to be closed in the step S2, controlling the gas treatment module to keep running, closing the fan or reducing the rotating speed to be below a first threshold value v01, and then entering the step S41, if the second fresh-keeping compartment is monitored to be opened and the first fresh-keeping compartment is monitored to be closed in the step S2, controlling the gas treatment module to keep running, closing the fan or reducing the rotating speed to be below the first threshold value v01, and then entering the step S42; S41, after the first fresh-keeping compartment and the second fresh-keeping compartment are all closed, controlling the gas treatment module to keep running, enabling the fan to run at a rotating speed v3, and re-timing, stopping the fan and the gas treatment module after timing reaches the target duration, and re-starting timing again, and entering a step S6, wherein v01< v3< v02; And S42, after the first fresh-keeping compartment and the second fresh-keeping compartment are all closed, controlling the gas treatment module to keep running, enabling the fan to run at the rotating speed v2, and re-timing, stopping the fan and the gas treatment module after timing reaches the target duration, and re-starting timing again, and entering the step S6.

Description

Refrigerator and control method thereof Technical Field The invention relates to the technical field of household appliances, in particular to a refrigerator and a control method thereof. Background The basic principle of the modified atmosphere preservation technology is that in a certain closed space, a gas atmosphere different from air components is obtained by various regulation modes so as to inhibit physiological and biochemical processes and microbial activities which cause the spoilage of stored materials (usually food materials). Those skilled in the art will appreciate that the air composition comprises, by volume, about 78% nitrogen, about 21% oxygen, about 0.939% rare gas, 0.031% carbon dioxide, and 0.03% other gases and impurities, such as ozone, nitric oxide, nitrogen dioxide, water vapor, and the like. In the field of controlled atmosphere preservation, the preservation gas is a gas composed of single component or multiple components with components different from air, and when the gas is used for food storage, the gas can play a role in delaying putrefaction or delaying maturation of foods of a certain class or classes. For the purpose of controlled atmosphere preservation, a common technology of refrigerators is to install a gas treatment unit that can treat a specific gas component, for example, increase or decrease the content of the specific gas component, so as to obtain a preservation gas. However, researches show that the refrigerator with air-conditioned fresh-keeping function has the problems of unreasonable fresh-keeping gas supply, low efficiency and complex pipelines at present. Disclosure of Invention In order to solve the technical problems, the invention aims to provide a refrigerator and a control method thereof. To achieve the above object, an embodiment provides a refrigerator. The refrigerator includes: The box body is internally provided with a first fresh-keeping compartment and a second fresh-keeping compartment; a gas treatment module for forming a fresh-keeping gas; The air distribution module comprises a first air distribution channel communicated with the air treatment module and the first fresh-keeping compartment, a second air distribution channel communicated with the air treatment module and the second fresh-keeping compartment, a fan used for driving fresh-keeping air to flow from the air treatment module to the first air distribution channel and the second air distribution channel, and a gravity baffle arranged at the second air distribution channel; The fan is provided with more than two gears with different rotating speeds and corresponds to different gears, and the gravity baffle plate rotates to different angles under the driving of air flow in the second air distribution channel. As an alternative embodiment, the first gas distribution channel and the second gas distribution channel are arranged in parallel. As an alternative embodiment, when the rotation speed of the fan does not exceed the first threshold v01, the gravity baffle cannot be driven by the airflow to rotate, and completely shields the second air distribution channel; When the rotating speed of the fan reaches above a second threshold v02, the gravity baffle plate is driven by the air flow to rotate by an angle X, and the gravity baffle plate of the gravity baffle plate completely opens the second air distribution channel. As an alternative embodiment, the fan is provided with a first gear of the rotating speed v1 and a second gear of the rotating speed v2, wherein v1 is less than or equal to v01, and v02 is less than or equal to v2; the fan also has a third gear of the rotation speed v3, v01< v3< v02. As an alternative embodiment, when the fan is in the first gear, the gravity baffle is perpendicular to the extending direction of the second air distribution channel, and when the fan is in the first gear, the third gear and the second gear, the included angle between the gravity baffle and the extending direction of the second air distribution channel is reduced step by step. As an alternative embodiment, the refrigerator further comprises a common channel, wherein the common channel is communicated between the gas treatment module and the first gas distribution channel and between the gas treatment module and the second gas distribution channel; the fan is arranged in the public channel. As an alternative embodiment, the gas treatment module and the gas distribution module are provided as an integrated module; One of the first fresh-keeping compartment and the second fresh-keeping compartment is positioned above the integrated module, and the other is positioned at the side of the integrated module; The first air distribution channel and the second air distribution channel are positioned in the integrated module and are distributed in an up-down layered mode. As an alternative embodiment, the first air distribution channel is provided with a first air distribution port formed on the integra