CN-121993964-A - Refrigerator and control method thereof

CN121993964ACN 121993964 ACN121993964 ACN 121993964ACN-121993964-A

Abstract

The invention provides a refrigerator and a control method thereof. The refrigerator comprises a first fresh-keeping room and a second fresh-keeping room, wherein the specific gas adjustment volume ratio of the first fresh-keeping room and the second fresh-keeping room is A: B, the gas treatment module is used for forming fresh-keeping gas for adjusting the specific gas content, the first gas distribution channel is communicated with the gas treatment module and the first fresh-keeping room for the fresh-keeping gas to flow from the gas treatment module to the first fresh-keeping room, the second gas distribution channel is communicated with the gas treatment module and the second fresh-keeping room for the fresh-keeping gas to flow from the gas treatment module to the second fresh-keeping room, the first gas distribution channel and the second gas distribution channel are arranged in parallel, and the minimum cross-sectional area ratio of the first gas distribution channel and the second gas distribution channel is C: D, wherein A is more than or equal to B, C is more than or equal to D and C: D is between A:4B/5 and A:6B/5, or A < B, C < D and C: D is between A: 4B/5.

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 (18)

1. A refrigerator, comprising: The box body is internally provided with a first fresh-keeping compartment and a second fresh-keeping compartment, and the specific gas adjustment volume ratio of the first fresh-keeping compartment and the second fresh-keeping compartment is A and B; a gas treatment module for forming a fresh-keeping gas for adjusting a specific gas content; The first gas distribution channel is communicated with the gas treatment module and the first fresh-keeping compartment so that the fresh-keeping gas flows from the gas treatment module to the first fresh-keeping compartment; The second gas distribution channel is communicated with the gas treatment module and the second fresh-keeping compartment so that fresh-keeping gas flows from the gas treatment module to the second fresh-keeping compartment, the first gas distribution channel and the second gas distribution channel are arranged in parallel, and the minimum cross-sectional area ratio of the first gas distribution channel to the second gas distribution channel is C to D; Wherein A is greater than or equal to B, C is greater than or equal to D and C is between A4B/5 and A6B/5, or A < B, C < D and C is between A4B/5 and A6B/5.
2. The refrigerator of claim 1, further comprising a fan for driving fresh air from the air handling module to the first and second air distribution channels.
3. The refrigerator of claim 2, 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.
4. The refrigerator of claim 2, further comprising a gas box, wherein the first gas distribution channel and the second gas distribution channel are each at least partially formed within the gas box; The air distribution box is provided with an inlet, the inlet is communicated with the air treatment module, the fan is arranged in the air distribution box, the air suction port of the fan faces the inlet and the air discharge port of the fan faces the first air distribution channel and the second air distribution channel.
5. The refrigerator of claim 4, wherein the gas distribution box comprises: A first connector having a first gas distribution port formed therein and defining a minimum cross section of the first gas distribution channel; and a second connector having a second gas distribution port formed therein and defining a minimum cross section of the second gas distribution channel.
6. The refrigerator according to claim 4, the refrigerator is characterized by further comprising: a first return air channel communicating the gas treatment module and the first fresh-keeping compartment for gas to flow from the first fresh-keeping compartment to the gas treatment module; the first air return channel and the second air return channel are arranged in parallel, and the minimum cross-sectional area ratio of the first air return channel and the second air return channel is E to F; wherein A is greater than or equal to B, E is greater than or equal to F and E is between A4B/5 and A6B/5, or A < B, E < F and E is between A4B/5 and A6B/5.
7. The refrigerator of claim 6, wherein the first and second return air passages are each at least partially formed within the air distribution box; the gas distribution box further comprises: an outlet port in communication with the gas treatment module; A third joint in which a first return air port of the first return air channel is formed and which defines a minimum cross section of the first return air channel; And a fourth joint in which a second return air port of the second return air channel is formed and which defines a minimum cross section of the second return air channel.
8. The refrigerator of claim 7, wherein the gas processing module comprises a process cartridge and a gas processing unit located within the process cartridge; The gas treatment unit is used for forming fresh-keeping gas; The processing box is provided with an air outlet for fresh-keeping gas to flow out and an air inlet for air to flow in, the air outlet is matched with the inlet, and the air inlet is matched with the outlet.
9. The refrigerator of claim 8, wherein the gas distribution box is fixedly assembled to a top wall of the process cartridge.
10. The refrigerator of claim 7, wherein the first fresh food compartment has a first air supply hole and a first return hole, the first connector is connected to the first air supply hole in a plug-in connection, and the third connector is connected to the first return hole in a plug-in connection.
11. The refrigerator according to claim 2, 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. The refrigerator of claim 11, wherein the controller is configured to, When the first door body and the second door body are judged to be closed, controlling the fan and the gas treatment module to be opened and starting timing until the target operation time is reached; Within the target time period: If the first door body and the second door body are judged to be opened, the gas treatment module is controlled to be closed, and the fan keeps running; And if only one of the first door body and the second door body is judged to be opened, controlling the gas treatment module to keep running and controlling the fan to be closed.
13. The refrigerator of claim 12 wherein the controller is further configured to, Within the target time period: And if the first door body and the second door body are judged to be opened, controlling the gas treatment module to be closed, and enabling the fan to keep running and the rotating speed to be increased.
14. The refrigerator of claim 12 wherein the controller is further configured to, Within the target time period: If the first door body and the second door body are judged to be closed all the time, the gas treatment module and the fan are controlled to be closed after the target time period, and the fan and the gas treatment module are controlled to be opened and start to time after a preset interval time period until the second target time period is operated; Wherein the second target duration is less than the target duration.
15. A control method of a refrigerator according to any one of claims 2 to 14, 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 and the gas treatment module to be started and starting timing; 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 keep running, 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, and returning to the step S1.
16. The control method of a refrigerator according to claim 15, wherein the control method further comprises 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, entering the step S8 when the timing reaches the preset interval duration; s8, controlling the fan and the gas treatment module to be turned on again, stopping the fan and the gas treatment module after continuously running for a second target time period, and returning to the step S1 after a second preset interval time period; 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.
17. The control method of a refrigerator according to claim 16, further comprising the steps of: S9, if the first fresh-keeping compartment and the second fresh-keeping compartment are both opened in the step S6, controlling the gas treatment module to be closed, controlling the fan to be opened, and returning to the step S1; S10, if only one of the first fresh-keeping compartment and the second fresh-keeping compartment is monitored to be opened in the step S6, restarting the timing, controlling the gas treatment module to be opened and controlling the fan to be closed, controlling the gas treatment module to keep running after the first fresh-keeping compartment and the second fresh-keeping compartment are monitored to be closed, controlling the fan to be opened until the fan and the gas treatment module are stopped after the third target duration is continuously running, and returning to the step S1 after the second preset interval duration; Wherein the third target duration is between the second target duration and the target duration.
18. The control method of a refrigerator according to claim 17, wherein the rotational speed of the blower in step S3 and step S9 is greater than the rotational speeds of the blowers in step S1, step S8, and step S10.

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, and the specific gas adjustment volume ratio of the first fresh-keeping compartment and the second fresh-keeping compartment is A and B; a gas treatment module for forming a fresh-keeping gas for adjusting a specific gas content; The first gas distribution channel is communicated with the gas treatment module and the first fresh-keeping compartment so that the fresh-keeping gas flows from the gas treatment module to the first fresh-keeping compartment; The second gas distribution channel is communicated with the gas treatment module and the second fresh-keeping compartment so that fresh-keeping gas flows from the gas treatment module to the second fresh-keeping compartment, the first gas distribution channel and the second gas distribution channel are arranged in parallel, and the minimum cross-sectional area ratio of the first gas distribution channel to the second gas distribution channel is C to D; Wherein A is greater than or equal to B, C is greater than or equal to D and C is between A4B/5 and A6B/5, or A < B, C < D and C is between A4B/5 and A6B/5. As an alternative embodiment, the refrigerator further comprises a fan, wherein the fan is used for driving fresh-keeping gas to flow from the gas treatment module to the first gas distribution channel and the second gas distribution channel. 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 optional embodiment, the refrigerator further includes a gas distribution box, and the first gas distribution channel and the second gas distribution channel are respectively formed at least partially in the gas distribution box; The air distribution box is provided with an inlet, the inlet is communicated with the air treatment module, the fan is arranged in the air distribution box, the air suction port of the fan faces the inlet and the air discharge port of the fan faces the first air distribution channel and the second air distribution channel. As an alternative embodiment, the gas distribution box includes: A first connector having a first gas distribution port formed therein and defining a minimum cross section of the first gas distribution channel; and a second connector having a second gas distribution port formed therein and defining a minimum cross section of the second gas distribution channel. As an alternative embodiment, the refrigerator further includes: a first return air channel communicating the gas treatment module and the first fresh-keeping compartment for gas to flow from the first fresh-keeping compartment to the gas treatment module; the first air return channel and the second air return channel are arranged in parallel, and the minimum cross-sectional area ratio of the first air return channel and the second air return channel