CN-121993959-A - Refrigerating equipment and temperature control method for fresh-keeping atmosphere of refrigerating equipment

CN121993959ACN 121993959 ACN121993959 ACN 121993959ACN-121993959-A

Abstract

The application provides refrigeration equipment and a temperature control method of fresh-keeping atmosphere of the refrigeration equipment, wherein the temperature of oxygen-regulating gas is prepared by monitoring an electrolytic air regulating module, or the temperature of fresh-keeping atmosphere in a fresh-keeping compartment is judged, whether the difference value between the temperature and an initial temperature value at the starting time of the electrolytic air regulating module exceeds a preset threshold value is judged, if yes, whether a first refrigerator operates is judged, if yes, whether the first refrigerator is used for refrigerating the fresh-keeping compartment is judged, if not, T fresh-keeping is compared with the preset minimum temperature T Fresh-keeping low of the fresh-keeping compartment, if T fresh-keeping ≥T Fresh-keeping low +n ℃, cold air prepared by the first refrigerator is controlled to be conveyed to the fresh-keeping compartment through an air path, and the cold air flows through the outer wall of the air path to exchange heat with the oxygen-regulating gas in the air path. When the temperature of the oxygen regulating gas is increased beyond the corresponding threshold value and the temperature of the fresh-keeping room is higher, cold air is fed into the fresh-keeping room and exchanges heat with the oxygen regulating gas before entering the fresh-keeping room, so that double cooling is realized.

Inventors

LIU YONGHAO
JI LISHENG
CHEN JIANQUAN
OUYANG JIA

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 (11)

1. A refrigeration appliance, comprising: A fresh-keeping compartment (10); the cooling assembly comprises a first refrigerator for cooling the fresh-keeping compartment (10) and an air path communicated with the fresh-keeping compartment (10); the electrolytic air regulating module (20) is used for regulating the oxygen concentration of the fresh-keeping compartment (10), and the electrolytic air regulating module (20) further comprises an oxygen regulating air circuit (30) communicated with the fresh-keeping compartment (10); the controller is used for controlling the refrigeration equipment to realize a temperature control method of the fresh-keeping atmosphere, and the temperature control method of the fresh-keeping atmosphere comprises the following steps: In the working process of the electrolytic air conditioning module (20), continuously monitoring the temperature T Oxygen gas of the oxygen conditioning gas in the oxygen conditioning gas path (30) and the temperature T fresh-keeping of the fresh atmosphere in the fresh-keeping compartment (10), when the difference value between the T Oxygen gas or T fresh-keeping and the initial temperature value at the starting time of the electrolytic air conditioning module (20) exceeds a preset threshold value, and when the first refrigerator is not refrigerating the fresh-keeping compartment (10), the cold air prepared by the first refrigerator is conveyed to the fresh-keeping compartment (10) through the air path, and flows through the outer wall of the oxygen conditioning gas path (30) to exchange heat with the oxygen conditioning gas in the oxygen conditioning gas path (30).
2. The temperature control method of the fresh-keeping atmosphere of the refrigeration equipment is characterized by comprising the following steps of: Monitoring the temperature T Oxygen gas of the oxygen regulating gas in the oxygen regulating gas pipeline (30) between the electrolytic air regulating module (20) and the fresh-keeping compartment (10) and the temperature T fresh-keeping of the fresh-keeping atmosphere in the fresh-keeping compartment (10) when the electrolytic air regulating module (20) operates to prepare the oxygen regulating gas; When the difference value between the T Oxygen gas or the T fresh-keeping and the initial temperature value at the starting time of the electrolytic gas regulating module (20) exceeds a preset threshold T Threshold value , judging whether the first refrigerator operates or not; If so, judging whether the first refrigerator is used for refrigerating the fresh-keeping compartment (10), if not, comparing T fresh-keeping with the preset lowest temperature T fresh-keeping of the fresh-keeping compartment (10), and if T fresh-keeping ≥T Fresh-keeping low +n ℃, controlling cold air prepared by the first refrigerator to be conveyed to the fresh-keeping compartment (10) through an air path, and enabling the cold air to flow through the outer wall of the oxygen adjusting air path (30) to exchange heat with oxygen adjusting air in the oxygen adjusting air path (30).
3. A method according to claim 2, characterized in that the oxygen regulating gas is controlled to enter a drawer arranged in the fresh keeping compartment (10) and the cold air is controlled to enter the fresh keeping compartment (10) outside the drawer.
4. A method for controlling the temperature of a fresh-keeping atmosphere of a refrigeration apparatus according to claim 3, wherein when the temperature T Oxygen gas of the oxygen-regulating gas in the oxygen-regulating gas line (30) is monitored; If the first refrigerator does not refrigerate, judging whether the temperature of T Fresh-keeping low ≤T fresh-keeping ≤T Fresh-keeping low +n ℃ is met, and if yes, controlling a fan to blow the residual cooling of the first refrigerator to the fresh-keeping compartment (10) at a preset duty ratio.
5. The method according to claim 4, wherein the preset duty ratio is 50-75%, and the higher the T fresh-keeping , the higher the duty ratio in a range of T Fresh-keeping low ～T Fresh-keeping low +n ℃.
6. The method for controlling the temperature of a fresh-keeping atmosphere of a refrigeration apparatus according to claim 4, wherein the first refrigerator is a first evaporator; If T fresh-keeping ＞T Fresh-keeping low +n ℃, judging whether the compressor is started, if the compressor is not started, immediately starting the compressor to cool the first evaporator to cool the fresh-keeping compartment (10), and if the compressor is started, immediately controlling the first evaporator to cool the fresh-keeping compartment (10) after the second evaporator for cooling the freezing compartment is cooled.
7. The method for controlling the temperature of a fresh-keeping atmosphere of a refrigeration apparatus according to claim 4, wherein T Threshold value is not less than 3 ℃.
8. A method of controlling the temperature of a fresh-keeping atmosphere in a refrigeration appliance according to claim 3, wherein when the temperature T fresh-keeping of the fresh-keeping atmosphere is monitored; if the first refrigerator does not refrigerate, judging whether the temperature T Refrigerating of the refrigerating compartment provided with the fresh-keeping compartment (10) meets the preset minimum temperature T Refrigeration low ≤T Refrigerating of the refrigerating compartment and the preset minimum temperature T Refrigeration low +m of the refrigerating compartment, and if so, controlling a fan to blow the residual air of the first refrigerator to the fresh-keeping compartment (10) at a preset duty ratio.
9. The method of controlling temperature of a fresh-keeping atmosphere of a refrigeration appliance according to claim 8, wherein the first refrigerator is a first evaporator; If T Refrigerating ≥T Refrigeration low +m ℃, judging whether the compressor is started, if the compressor is not started, immediately starting the compressor to cool the first evaporator to cool the fresh-keeping compartment (10), and if the compressor is started, immediately controlling the first evaporator to cool the fresh-keeping compartment (10) after the second evaporator for cooling the freezing compartment is cooled.
10. The method for controlling the temperature of a fresh-keeping atmosphere of a refrigeration apparatus according to claim 8, wherein T Threshold value is not less than 1 ℃.
11. A method according to claim 2, characterized in that if the first refrigerator reaches the maximum cooling time, T fresh-keeping ≥T Fresh-keeping low +1 ℃, the fan is controlled to blow the waste heat of the first refrigerator towards the fresh compartment (10) with a duty cycle of 50%.

Description

Refrigerating equipment and temperature control method for fresh-keeping atmosphere of refrigerating equipment Technical Field The application relates to the technical field of refrigeration equipment, in particular to refrigeration equipment and a temperature control method for fresh-keeping atmosphere of the refrigeration equipment. Background The preservation requirements of the existing refrigerator on high-end food materials are higher and higher, and the preservation environment of high oxygen is favorable for improving the preservation quality of meat food materials. Most of the ways to provide a high oxygen environment are to generate a gas stream with a high oxygen concentration from an electrolysis module and introduce the gas stream into a chamber to form a high oxygen chamber. And a certain amount of heat is generated in the working process of the electrolysis module, so that the temperature of the transported oxygen is higher, and the prior art solves the problem that when the temperature detection value is higher than or equal to the temperature threshold value, the control scheme reduces the temperature influence on the storage space, but is unfavorable for maintaining the gas components in the storage space, thereby reducing the fresh-keeping effect. Disclosure of Invention The application aims to provide refrigeration equipment and a temperature control method of a fresh-keeping atmosphere of the refrigeration equipment, when temperature rise caused by oxygen gas is more than or equal to a preset threshold value, under the condition that a first refrigerator does not refrigerate a fresh-keeping compartment, the first refrigerator is controlled to refrigerate the fresh-keeping compartment when the indoor temperature of the fresh-keeping compartment is higher than the preset lowest temperature of the fresh-keeping compartment by n ℃, and the problem that in the prior art, gas components in the fresh-keeping compartment are difficult to maintain due to the fact that the operation of an electrolysis module is stopped to avoid the temperature rise is solved. In order to achieve one of the above objects, an embodiment of the present application provides a refrigeration apparatus including: A fresh-keeping compartment; the cooling assembly comprises a first refrigerator for cooling the fresh-keeping compartment and an air path communicated with the fresh-keeping compartment; The electrolytic air regulating module is used for regulating the oxygen concentration of the fresh-keeping compartment and also comprises an oxygen regulating air path communicated with the fresh-keeping compartment; the controller is used for controlling the refrigeration equipment to realize a temperature control method of the fresh-keeping atmosphere, and the temperature control method of the fresh-keeping atmosphere comprises the following steps: In the working process of the electrolytic air conditioning module, the temperature T Oxygen gas of the oxygen conditioning gas in the oxygen conditioning gas circuit and the temperature T fresh-keeping of the fresh-keeping atmosphere in the fresh-keeping compartment are continuously monitored, when the difference value between the temperature T Oxygen gas or the temperature T fresh-keeping and the initial temperature value of the electrolytic air conditioning module at the starting time exceeds a preset threshold value, under the condition that the first refrigerator does not refrigerate the fresh-keeping compartment, the cold air prepared by the first refrigerator is conveyed to the fresh-keeping compartment through the air circuit, and flows through the outer wall of the oxygen conditioning gas circuit to exchange heat with the oxygen conditioning gas in the oxygen conditioning gas circuit. The embodiment of the application provides a temperature control method of fresh-keeping atmosphere of refrigeration equipment, which comprises the following steps: When the electrolytic gas regulating module operates to prepare oxygen regulating gas, monitoring the temperature T Oxygen gas of the oxygen regulating gas in a gas path between the electrolytic gas regulating module and the fresh-keeping compartment and the temperature T fresh-keeping of fresh-keeping atmosphere in the fresh-keeping compartment; When the difference value between the T Oxygen gas or the T fresh-keeping and the initial temperature value at the starting time of the electrolytic air conditioning module exceeds a preset threshold T Threshold value , judging whether the first refrigerator operates or not; If so, judging whether the first refrigerator is used for refrigerating the fresh-keeping compartment, if not, comparing the temperature T fresh-keeping with the preset lowest temperature T Fresh-keeping low of the fresh-keeping compartment, and if T fresh-keeping ≥T Fresh-keeping low +n ℃, controlling cold air prepared by the first refrigerator to be conveyed to the fresh-keeping compartment