CN-121993961-A - Refrigerator and temperature control method thereof

Abstract

The invention discloses a refrigerator, which comprises a refrigerator body, an oxygen regulating assembly and an oxygen regulating air channel, wherein a plurality of storage compartments and a refrigerating air channel are formed in the refrigerator body, the refrigerating air channel is used for circulating refrigerating air flow to provide cold energy for at least one storage compartment, the oxygen regulating assembly comprises an oxygen regulating module used for preparing oxygen regulating air and an oxygen regulating air channel used for providing oxygen regulating air for at least one storage compartment, and the refrigerating air channel is coupled with at least part of the oxygen regulating air channel to provide cold energy for the oxygen regulating air channel. The invention also discloses a control method of the refrigerator, which comprises the steps of obtaining the current temperature of the oxygen regulating gas, and comparing the current temperature of the oxygen regulating gas with the initial temperature of the oxygen regulating gas. The invention can utilize the refrigerating air flow in the refrigerating air channel to cool the oxygen regulating air flow in the oxygen regulating air channel, so that the temperature of the oxygen regulating air flowing into the storage compartment can not influence the refrigerating temperature in the storage compartment, and the storage of food materials in the storage compartment is facilitated.

Inventors

• LI CHUNYANG
• LIU YONGHAO
• MIAO JIANLIN
• CHEN JIANQUAN
• OUYANG JIA
• 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 (20)

1. 1. A refrigerator, comprising: A case (10) having a plurality of storage compartments (13) formed therein, and a cooling air duct (30) for circulating a cooling air flow to supply cooling capacity to at least one of the storage compartments (13); An oxygen regulating assembly (40) comprising an oxygen regulating module (41) for preparing an oxygen regulating gas, and an oxygen regulating gas circuit (42) for providing the oxygen regulating gas to at least one storage compartment (13); The refrigeration air duct (30) is coupled with at least part of the oxygen regulating air passage (42) to provide cold energy for the oxygen regulating air passage (42).
2. 2. The refrigerator according to claim 1, wherein the cooling duct (30) includes a cooling duct (32) at least partially surrounding the storage compartment (13), a supply duct (31) for supplying a cooling air flow to the cooling duct (32); The refrigerating air duct (30) is provided with an air inlet (141) and an air return opening (142) which are communicated with the air supply air duct (31), the refrigerating air flows through the refrigerating air duct (30) through the air inlet (141) and then flows to the air supply air duct (31) through the air return opening (142) to form an air return air path, and at least part of the oxygen regulating air path (42) is coupled with the air return air path.
3. 3. The refrigerator according to claim 2, wherein at least a part of the oxygen-adjusting air passage (42) is provided at the position of the return air inlet (142).
4. 4. The refrigerator according to claim 1 or 2, wherein at least a part of the oxygen-regulating air passage (42) is spirally arranged in the cooling air passage (30).
5. 5. The refrigerator according to claim 1 or 2, wherein at least a part of the oxygen regulating air passage (42) is wrapped outside the cooling air passage (30) to exchange heat with the cooling air passage (30).
6. 6. The refrigerator according to claim 2, the refrigerator is characterized by further comprising: A storage container (15) defining the storage compartment (13) therein; and a seal housing (14) covering the outside of at least a part of the wall of the storage container (15), wherein a gap for the flow of the refrigerating gas or the oxygen regulating gas is provided between the seal housing (14) and the storage container (15).
7. 7. The refrigerator according to claim 6, characterized in that the storage container (15) comprises: a cover plate (151) fixed in the seal housing (14); a drawer (152) having an upwardly open cavity, the drawer (152) sliding on the sealed housing (14) to move between an open position to open the cavity and a closed position to close the cavity; The cover plate (151) is located above the drawer (152) to seal the cavity in the closed position.
8. 8. The refrigerator according to claim 6 or 7, wherein the gap forms the cooling air duct (32), and the air inlet (141) and the air return (142) are provided on the sealed housing (14).
9. 9. The refrigerator of claim 7, wherein the oxygen-adjusting air passage (42) is communicated with the gap, an air inlet for circulating oxygen-adjusting air to the storage compartment (13) is formed in the cover plate (151), and the air inlet (141) and the air return opening (142) are formed in the drawer (152).
10. 10. The refrigerator according to claim 9, wherein the cover plate (151) is provided with a gas permeable membrane (153) at a position of the gas inlet through which the oxygen adjusting gas passes.
11. 11. The refrigerator according to claim 1, wherein the oxygen-adjusting gas circuit (42) is an oxygen-enriched gas circuit for supplying oxygen to the storage compartment (13); And/or the oxygen regulating gas circuit (42) is arranged as an oxygen-depleted gas circuit for providing oxygen-depleted gas to the storage compartment (13).
12. 12. The refrigerator according to claim 1, wherein the oxygen adjusting gas circuit (42) is provided with a first temperature sensor.
13. 13. The refrigerator of claim 12, wherein the first temperature sensor is disposed at one end of the oxygen-adjusting gas path (42) which communicates with the gas outlet of the storage compartment (13).
14. 14. A temperature control method of a refrigerator, the temperature control method comprising: Under the oxygen regulation mode, respectively acquiring an initial temperature T0 of the oxygen regulation gas and a corresponding current temperature T1 when the operation duration of the oxygen regulation mode is T; Comparing the current temperature T1 of the oxygen regulating gas with the initial temperature T0 of the oxygen regulating gas, correspondingly controlling a refrigerating system to cool the oxygen regulating gas according to the refrigerating state of the refrigerator when T1-T0 is more than or equal to a ℃, and circularly obtaining the current temperature T1 and comparing the current temperature T1 with the initial temperature T0 when T1-T0 is less than a ℃, wherein T, a is a constant which is more than 0.
15. 15. The method of claim 14, wherein the controlling the refrigerating system of the refrigerator according to the refrigerating state correspondence of the refrigerator comprises: judging whether the refrigerating system is in a refrigerating state or not; If the refrigerating system is in a refrigerating state, controlling whether the refrigerating air flow enters the oxygen regulating chamber according to the refrigerating state of the oxygen regulating chamber; And if the refrigerating system is not in a refrigerating state, judging the temperature T2 of the oxygen regulating chamber, controlling the refrigerating air flow to enter the oxygen regulating chamber when the temperature T2 of the oxygen regulating chamber is in a first threshold range, and controlling the refrigerating system to be switched to the refrigerating state when the temperature T2 of the oxygen regulating chamber is in a second threshold range, wherein the second threshold range is larger than the first threshold range.
16. 16. The method for controlling the temperature of a refrigerator according to claim 15, wherein controlling whether a cooling air flow enters the oxygen regulating compartment according to a cooling state of the oxygen regulating compartment comprises: if the oxygen regulating compartment is in a refrigerating state, stopping conveying the refrigerating air flow to the oxygen regulating compartment until the temperature T2 of the oxygen regulating compartment is less than the temperature T3 of a shutdown node when the refrigerating system stops running in the refrigerating state; And if the oxygen regulating chamber is not in a refrigerating state, controlling to convey the refrigerating air flow into the oxygen regulating chamber when the temperature T2 of the oxygen regulating chamber is in a third threshold range, and stopping conveying the refrigerating air flow into the oxygen regulating chamber until the temperature T2 of the oxygen regulating chamber is smaller than the temperature T3 of the shutdown node.
17. 17. The method of controlling a temperature of a refrigerator according to claim 16, wherein the third threshold range is T2≥T3+b.C., and b is a constant greater than 0.
18. 18. The method of controlling a temperature of a refrigerator according to claim 15, wherein the first threshold range is T3≤T2 < T3+b.DEG.C, the second threshold range is T2≥T3+b.DEG.C, and b is a constant greater than 0.
19. 19. The method of claim 15, further comprising controlling a cooling fan in the cooling system to be turned on when the temperature T2 of the oxygen adjusting compartment is within a first threshold range.
20. 20. The method for controlling the temperature of a refrigerator according to claim 19, wherein the cooling fan is operated at a duty ratio of a set threshold value.

Description

Refrigerator and temperature control method thereof Technical Field The invention relates to the technical field of preservation, in particular to a refrigerator and a temperature control method of the refrigerator. Background With the improvement of living standard, the demands of consumers on the refrigerator are also improved, and the consumers hope that food materials in the refrigerator can be stored for a longer time. The oxygen content requirements of different food materials in the storage environment are different, and for the food materials of fruits and vegetables, the food and oxygen undergo oxidation reaction, so that nutrient substances, pigments, flavor substances and other components of the food are damaged, and the food materials are not easy to store in the oxygen-enriched environment, and for the food materials of fresh meat, enough oxygen is needed to prolong the storage time of the food materials. Aiming at the problems, an oxygen adjusting component is arranged in the existing refrigerator, an electrochemical reaction is adopted by the oxygen adjusting component to produce oxygen adjusting gas (oxygen and hydrogen) by utilizing electrolyte, and the oxygen and the hydrogen are respectively introduced into an oxygen-enriched space and an oxygen-deficient space, or the oxygen in the oxygen-deficient space is reduced by adopting the electrochemical reaction, so that the adjustment of the oxygen content in different storage spaces is realized. However, the oxygen regulating gas supplied into the storage space is generated by the electrolysis module, and a certain amount of heat is generated in the working process of the electrolysis module, so that the temperature of the transported oxygen regulating gas is higher, thereby influencing the temperature in the storage space and being unfavorable for the storage of food materials. Disclosure of Invention The invention aims to provide a refrigerator and a temperature control method thereof, which are used for solving the defects in the prior art. In order to achieve one of the above objects, the present invention provides a refrigerator comprising: The refrigerator comprises a box body, a plurality of storage compartments and a refrigerating air duct, wherein the storage compartments and the refrigerating air duct are formed in the box body and used for circulating refrigerating air flow to provide cold for at least one storage compartment; The oxygen regulating assembly comprises an oxygen regulating module for preparing oxygen regulating gas and an oxygen regulating gas circuit for providing the oxygen regulating gas for at least one storage compartment; The refrigeration air channel is coupled with at least part of the oxygen regulating air channel to provide cold energy for the oxygen regulating air channel. As a further improvement of an embodiment of the present invention, the cooling air duct includes a cooling air duct at least partially surrounding the storage compartment, a supply air duct for supplying a cooling air flow to the cooling air duct; The refrigerating air channel is provided with an air inlet and an air return opening which are communicated with the air supply air channel, and the refrigerating air flows through the refrigerating air channel through the air inlet and then flows to the air supply air channel through the air return opening to form an air return air channel, and at least part of the oxygen regulating air channel is coupled with the air return air channel. As a further improvement of an embodiment of the present invention, at least part of the oxygen regulating air path is disposed at the position of the return air inlet. As a further improvement of an embodiment of the present invention, at least part of the oxygen regulating gas path is coiled in the refrigerating air duct. As a further improvement of an embodiment of the present invention, at least part of the oxygen adjusting gas path is wrapped around the outer side of the cooling air duct to exchange heat with the cooling air duct. As a further improvement of an embodiment of the present invention, the refrigerator further includes: A storage container defining the storage compartment therein; And the sealing shell is covered on the outer side of at least a part of the wall of the storage container, and a gap for the circulation of the refrigerating airflow or the oxygen regulating airflow is arranged between the sealing shell and the storage container. As a further improvement of an embodiment of the present invention, the storage container includes: A cover plate fixed in the sealed housing; A drawer having an upwardly open cavity, the drawer sliding on the seal housing to move between an open position to open the cavity and a closed position to close the cavity; The cover plate is positioned above the drawer to seal the cavity in the closed position. As a further improvement of an embodiment of the present invention, the gap forms the cooling air duct