CN113375410B

CN113375410B - Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator

Info

Publication number: CN113375410B
Application number: CN202010116757.2A
Authority: CN
Inventors: 盛庆赫; 唐学强; 刘运斌; 刘华
Original assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Current assignee: Hefei Hualing Co Ltd; Midea Group Co Ltd; Hefei Midea Refrigerator Co Ltd
Priority date: 2020-02-25
Filing date: 2020-02-25
Publication date: 2022-09-30
Anticipated expiration: 2040-02-25
Also published as: CN113375410A

Abstract

The invention discloses a return air temperature control mechanism, a return air temperature control method, an operation control device and a refrigerator, wherein the return air temperature control mechanism comprises an evaporator, an evaporator air duct and a refrigerating fan, the refrigerating fan and the evaporator are arranged in the evaporator air duct, the evaporator air duct in front of the evaporator along the air supply direction of the refrigerating fan is a first air duct, the evaporator air duct in back of the evaporator along the air supply direction of the refrigerating fan is a second air duct, the refrigerating fan is arranged in the second air duct, the refrigerator also comprises at least two temperature control chambers, a rotary disc and a driving device, the temperature control chambers comprise an air supply opening and a return air opening, the rotary disc comprises a communication opening corresponding to the return air opening, the driving device controls the rotary disc to rotate according to the temperature control request of the temperature control chambers, so that the communication opening is communicated with the return air opening of the temperature control chamber corresponding to the temperature control request, and the rotary disc is used for controlling the opening and closing of the return air openings of a plurality of the temperature control chambers, the temperature control requirements of a plurality of temperature zones can be met, and the temperature regulation efficiency of the temperature control chamber can be improved.

Description

Return air temperature control mechanism, return air temperature control method, operation control device and refrigerator

Technical Field

The invention relates to the field of refrigerators, in particular to a return air temperature control mechanism, a return air temperature control method, an operation control device and a refrigerator.

Background

With the subdivision of temperature zones brought by the technical upgrade of users and the increasingly abundant purchasing of food materials by users, a plurality of refined storage spaces are needed, and the demand of creating a refrigerator with multiple temperature zones to realize different functions is urgent. At present, most methods for realizing multiple temperature zones are realized by combining turnover electric air doors with an air duct, and particularly when temperature control of multiple compartments is realized, multiple air doors are required to be arranged, so that the structural design has the defects of excessive occupied space, high cost and low efficiency of temperature regulation and control of temperature control compartments.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a return air temperature control mechanism, a return air temperature control method, an operation control device and a refrigerator, which can improve the temperature regulation efficiency of a temperature control chamber under the condition of meeting the temperature control requests of a plurality of temperature zones, effectively prevent the insufficient cold quantity of the temperature control chamber and reduce the lowest temperature of the temperature control chamber.

The return air temperature control mechanism according to the embodiment of the first aspect of the present invention is applied to a refrigerator, and includes an evaporator, an evaporator air duct, and a refrigeration fan for supplying air to a refrigeration chamber of the refrigerator, wherein the refrigeration fan and the evaporator are disposed in the evaporator air duct, the evaporator air duct in front of the evaporator along an air supply direction of the refrigeration fan is a first air duct, the evaporator air duct behind the evaporator along the air supply direction of the refrigeration fan is a second air duct, the refrigeration fan is disposed in the second air duct, and the return air temperature control mechanism further includes:

the temperature control chambers comprise an air supply outlet and an air return inlet;

the rotary table comprises a communication port which can correspond to the air return port; the driving device is used for controlling the rotating disc to rotate;

the air supply outlet is communicated with the first air channel, and the air return inlet can be communicated with the second air channel through the communication port;

the driving device controls the rotary disc to rotate according to the temperature control request of the temperature control chamber, so that the communication port is communicated with the air return port of the temperature control chamber corresponding to the temperature control request.

The temperature control chamber is provided with an air supply opening and an air return opening, the temperature control chamber realizes the circulation with the air outside the temperature control chamber through the air supply opening and the air return opening, the air outside the temperature control chamber can enter the temperature control chamber from the air supply opening and flow out from the air return opening, and the heat exchange between the inside and the outside of the temperature control chamber can be realized through the flow of the air in the process.

The refrigeration fan set up in the second wind channel, can take out the air in the control by temperature change room and carry the evaporimeter through the return air inlet, for the refrigeration fan of setting in the evaporimeter top, this refrigeration fan can direct action in the return air inlet at the wind pressure of during operation production, can improve the return air wind pressure of control by temperature change room, it is faster to make the air flow velocity between the supply-air outlet and the return air inlet of control by temperature change room, thereby improve the efficiency of the temperature regulation and control of control by temperature change room, prevent effectively that the cold volume of control by temperature change room is not enough, and can reduce the minimum temperature of control by temperature change room.

Further, the refrigeration fan is arranged close to the air return opening. The refrigeration fan can be arranged on the same horizontal position with the air return opening or on the position of the same horizontal position in front of the air supply direction, air in the temperature control chamber can be quickly drawn out through the air return opening, and air outside the temperature control chamber can quickly enter the temperature control chamber from the air supply opening, so that quick temperature adjustment of the temperature control chamber is realized.

When the air-cooling fan is opened, the communication port on the rotary table can be communicated with the air return port of the temperature control chamber by controlling the rotation angle of the rotary table, and the communication port on the rotary table can be staggered with the air return port of the temperature control chamber, so that the air return port is closed. The communicating port on the control turntable can be controlled to be communicated with the air return ports of the temperature control rooms with required temperature control, so that the communicating state of the air return ports of the temperature control rooms can be controlled through the turntable, and the temperature of the temperature control rooms can be efficiently controlled.

It should be noted that, after the air return opening is closed, the air that subsequently enters the temperature control chamber through the air supply opening cannot flow out from the closed air return opening, so that the air pressure in the temperature control chamber is higher than the air pressure outside the air return opening, and therefore, under the action of the air pressure difference between the air return opening and the air return opening, after the communication opening of the driving device control turntable is communicated with the air return opening, and before the air pressure in the temperature control chamber is balanced, the air in the temperature control chamber can quickly flow out from the air return opening, and the temperature regulation efficiency of the temperature control chamber can be improved.

According to some embodiments of the invention, a projection of the return air opening to the direction of the turntable overlaps with a rotation path of the communication opening. The rotating path of the communication port is an area formed in the process that the communication port rotates around the rotating shaft of the rotating disk. When the turntable rotates, a rotating path can be formed in the rotating process of the communication port, and because the projection of the center of the air return port to the direction of the turntable is overlapped with the rotating path of the communication port, the projection of the communication port and the air return port to the direction of the turntable can be at least partially overlapped by controlling the rotation of the turntable, so that the communication port is communicated with the air return port of the temperature control chamber, and the communication state of the air return port is controlled.

According to some embodiments of the invention, the number of the communication ports arranged on the turntable is one or more than two. The number of the communication ports on the turntable is not limited, and the number of the communication ports can be one or more than two. When the number of the communication ports on the turntable is one, the communication ports can be controlled to be communicated with the air return ports of the temperature control chambers one by one, so that the temperature control of the temperature control chambers is realized, in addition, more than two communication ports can be arranged, and the communication ports are used for controlling the communication state of the air return ports of the temperature control chambers at more than two times simultaneously, so that the temperature control of the temperature control chambers is realized.

According to some embodiments of the present invention, the temperature control device comprises a first temperature control chamber and a second temperature control chamber, the first temperature control chamber comprises a first air return opening, the second temperature control chamber comprises a second air return opening, and the driving device controls the communication opening of the turntable to rotate from a first communication position to a second communication position according to a temperature control request, the first communication position corresponds to the first air return opening, and the second communication position corresponds to the second air return opening.

When the communication port is communicated with the first air return port at the first communication position, if the second temperature control compartment needs temperature control, the driving device can control the communication port of the turntable to rotate from the first communication position to the second communication position according to the temperature control request, so that the communication port is communicated with the second air return port, and temperature control of the second temperature control compartment is realized.

According to some embodiments of the present invention, the driving device controls the communication port of the turntable to be maintained at the first communication position according to a temperature control request, and controls the communication port of the turntable to rotate from the first communication position to the second communication position after the first set condition is reached.

When a plurality of temperature control compartments need temperature control, the driving device can control the communication port of the turntable to rotate to the first communication position and keep the first communication position, after the first set condition is achieved, the communication port of the turntable can be controlled to rotate to the second communication position from the first communication position, namely, the driving device can sequentially process the temperatures of the plurality of temperature control compartments according to the set condition, and therefore the temperature control of the plurality of temperature control compartments is achieved.

Further, the first setting condition includes at least one of:

the temperature of the first temperature control chamber reaches a first target temperature;

the communication port of the dial is maintained at a first communication position for a first duration.

According to some embodiments of the present invention, the temperature control device further comprises a second temperature control chamber, the second temperature control chamber comprises a second return air opening, and the driving device controls the communication opening of the rotary disc to rotate from a second communication position to a second closed position according to a temperature control request, so as to close all the return air openings on the return air temperature control mechanism, wherein the second communication position corresponds to the second return air opening, or controls the communication opening of the rotary disc to rotate from the second closed position to the second communication position according to a temperature control request.

The temperature of first control by temperature change room reaches and predetermines the temperature and other control by temperature change rooms do not have the temperature control demand, and drive arrangement can control the intercommunication mouth of carousel and rotate to first closed position from first intercommunication position, can make the return air inlet on the return air accuse temperature mechanism close through the effect that blocks of carousel, can make the air in the control by temperature change room flow through the return air inlet to make the control by temperature change room realize the heat preservation effect.

Alternatively, the first and second electrodes may be,

the temperature of the first temperature control chamber needs to be controlled, the driving device can control the communication port of the turntable to rotate to the first communication position from the first closing position, the communication port is communicated with the first air return port, and a channel for air circulation is formed between the air supply port and the air return port of the temperature control chamber, so that the temperature of the first temperature control chamber is controlled.

According to some embodiments of the invention, the temperature control room comprises a Chinese character tian-shaped temperature control room array formed by four temperature control rooms, the turntable is arranged on one side of the temperature control room array, the turntable is a disc covering air return openings of the four temperature control rooms, and an air supply opening of the temperature control room is arranged on one side of the temperature control room array, which corresponds to the turntable, and avoids the coverage range of the disc. The combination of disc and the temperature control chamber array of the shape of Chinese character tian can reduce the occupied space of the return air control mechanism, and because the return air inlet and the air supply outlet can be arranged on one side of the temperature control chamber array, when the return air temperature control mechanism is applied to a refrigerator, the air duct design can be simplified.

According to some embodiments of the invention, the cooling fan is arranged opposite to the evaporator along the air supply direction, and a water blocking device is arranged on the second air duct between the evaporator and the cooling fan.

The refrigeration fan can be just right along its air supply direction the evaporimeter sets up, for preventing that the water droplet that the evaporimeter produced at the during operation from influencing refrigeration fan's use, can set up the water stop device on the second wind channel between refrigeration fan and the evaporimeter, because refrigeration fan and evaporimeter setting need not the widening wind channel in same vertical region, can improve space utilization.

Further, the water stop device is a water baffle or a water pan.

The water proof device is the manger plate baffle, because the manger plate baffle sets up the refrigeration fan with between the evaporimeter, when the water droplet whereabouts, the water proof baffle can make the water droplet skew former whereabouts direction to prevent on the water droplet whereabouts the refrigeration fan, effectively improve refrigeration fan's life.

The water stop is the water collector, because the water collector sets up the refrigeration fan with between the evaporimeter, when the water droplet whereabouts, the water collector can accept the water droplet to prevent that the water droplet from falling on the refrigeration fan, effectively improve refrigeration fan's life.

According to some embodiments of the invention, the refrigeration fan and the evaporator are arranged in the second air duct in a staggered manner along the air supply direction of the refrigeration fan, a water-resisting device is not required, and water drops flowing upwards and downwards of the evaporator can be avoided through the arrangement of the position.

According to some embodiments of the present invention, the driving means controls the rotational position of the dial according to the priority of the temperature control request.

If a plurality of temperature control requests occur, the driving device can control the rotating position of the rotating disc according to the priorities of the plurality of temperature control requests, so that the temperature control requests of a plurality of temperature control rooms can be sequentially met.

Further, the priority of the temperature control request includes one of:

the temperature control request corresponding to the temperature control chamber with the temperature difference larger than the threshold value is prior, and the temperature difference is the difference value between the current temperature and the preset temperature of the temperature control chamber;

in order to prevent the food in the temperature control chamber from easily deteriorating due to large temperature difference, the driving device can control the communication port of the turntable to be preferentially communicated with the air return port in the temperature control chamber and preferentially adjust the temperature of the temperature control chamber, so that the risk of food deterioration is reduced;

and assigning the temperature control request corresponding to the temperature control room with the high priority level to be prior.

When the temperature control room with high priority level is used, the temperature control room with high temperature sensitivity can be used for storing food with high temperature sensitivity, the driving device can control the communication port of the turntable to be communicated with the air return port in the temperature control room with high priority level preferentially, and the temperature of the temperature control room is adjusted preferentially, so that the risk of food deterioration is reduced.

The return air temperature control method according to the embodiment of the second aspect of the present invention is applied to a refrigerator provided with a return air temperature control mechanism, the return air temperature control mechanism includes an evaporator, an evaporator air duct and a refrigeration fan for supplying air to a refrigeration chamber of the refrigerator, the refrigeration fan and the evaporator are arranged in the evaporator air duct, the evaporator air duct in front of the evaporator along an air supply direction of the refrigeration fan is a first air duct, the evaporator air duct in back of the evaporator along the air supply direction of the refrigeration fan is a second air duct, the refrigeration fan is arranged in the second air duct, and the return air temperature control mechanism further includes:

the rotary table comprises a communication port which can correspond to the air return port;

the driving device is used for controlling the rotating disc to rotate; the air supply outlet is communicated with the first air channel, and the air return inlet can be communicated with the second air channel through the communication port;

the return air temperature control method comprises the following steps:

acquiring a first temperature control request for controlling the temperature of the temperature control chamber;

and controlling the driving device to drive the turntable to rotate according to the first temperature control request, and controlling the communication state of the air return opening of the temperature control compartment corresponding to the temperature control request.

The temperature control chamber is provided with an air supply outlet and an air return inlet, the temperature control chamber realizes the circulation with the air outside the temperature control chamber through the air supply outlet and the air return inlet, the air outside the temperature control chamber can enter the temperature control chamber from the air supply outlet and flow out from the air return inlet, and in the process, the heat exchange between the inside and the outside of the temperature control chamber can be realized through the flow of the air; and controlling the driving device to drive the turntable to rotate according to the first temperature control request, controlling the communication state of the air return opening of the temperature control chamber corresponding to the temperature control request, and forming a channel for air circulation between the air supply opening and the air return opening of the corresponding temperature control chamber, thereby realizing the temperature regulation of the temperature control chamber.

When the air cooler is opened, the communication port on the turntable can be communicated with the air return port of the temperature control chamber by controlling the rotation angle of the turntable, and the communication port on the turntable can also be staggered with the air return port of the temperature control chamber, so that the air return port is closed. The communication port on the turntable and the air return port of the temperature control chamber with the required temperature control can be controlled, so that the communication state of the air return ports of the temperature control chambers can be controlled through the turntable, and the temperature of the temperature control chambers can be efficiently controlled.

According to some embodiments of the present invention, the controlling the driving device to drive the turntable to rotate according to the temperature control request to control the communication state of the air return opening of the temperature control compartment corresponding to the temperature control request includes at least one of:

controlling a communication port of the turntable to rotate from a first communication position to a second communication position according to a temperature control request;

controlling a communication port of the turntable to rotate from a first communication position to a first closing position according to a temperature control request;

controlling a communication port of the turntable to rotate from a first closed position to a first communication position according to a temperature control request;

and controlling the communication port of the turntable to be kept at a first communication position according to the temperature control request, and controlling the communication port of the turntable to rotate from the first communication position to a second communication position after a first set condition is reached.

The communication ports in different positions are controlled to rotate or keep the positions through the embodiment, so that the communication state of the communication ports and the air return opening is changed, and the different temperature control requirements of a plurality of temperature control compartments can be met.

Further, the first setting condition includes at least one of:

According to some embodiments of the invention, the obtaining a first temperature control request for controlling the temperature of the temperature-controlled compartment comprises: acquiring more than two temperature control requests; and judging the priority of the more than two temperature control requests, and determining the temperature control request with the highest priority as a first temperature control request.

If more than two temperature control requests are obtained, the temperature control requests corresponding to the temperature control rooms with the highest priority levels can be confirmed as first temperature control requests, the driving device is controlled to drive the rotary disc to rotate according to the first temperature control requests, the communication ports are communicated with the air return ports of the temperature control rooms corresponding to the first temperature control requests, and therefore the temperature control requests can be sequentially met.

According to some embodiments of the invention, the determining the temperature control request with the highest priority level is a first temperature control request, and comprises one of the following steps:

and designating the temperature control request corresponding to the temperature control room with the high priority level as a first temperature control request.

If a plurality of temperature control requests occur and at least one temperature control request corresponding to a temperature control room with a high assigned priority level exists, in order to ensure the freshness of food in the temperature control room, the temperature control request corresponding to the temperature control room with the high assigned priority level is determined as a first temperature control request, and the driving device is controlled to drive the turntable to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control room corresponding to the first temperature control request, the temperature control requirement of the temperature control room with the high assigned priority level can be preferentially met, and the risk of food deterioration is reduced.

And determining a first temperature control request according to a temperature difference of a temperature control room corresponding to the temperature control request, wherein the temperature difference is a difference value between the current temperature of the temperature control room and a preset temperature.

If a plurality of temperature control requests occur, the temperature control requests can be sequenced according to the temperature difference of the temperature control chamber corresponding to the temperature control requests, the temperature control request corresponding to the temperature control chamber with the larger temperature difference can be determined as a first temperature control request, and the driving device is controlled to drive the turntable to rotate according to the first temperature control request, so that the communication port is communicated with the return air inlet of the temperature control chamber corresponding to the first temperature control request, and the temperature control requirements of the temperature control chambers with different temperature differences are met.

According to some embodiments of the invention, the determining the first temperature control request according to the temperature difference of the temperature control compartment corresponding to the temperature control request comprises: and the temperature control request corresponding to the temperature control chamber with the temperature difference value larger than the threshold value is the first temperature control request.

If a plurality of temperature control requests occur and at least one temperature control request corresponding to the temperature control chamber with the temperature difference larger than the threshold exists, the difference between the food in the temperature control chamber with the temperature difference larger than the threshold and the effective fresh-keeping temperature is large, the risk of food deterioration is easy to occur, the temperature control request corresponding to the temperature control chamber with the temperature difference larger than the threshold can be determined as the first temperature control request, so that the temperature control requirement of the temperature control chamber with the temperature difference larger than the threshold can be preferentially met, and the risk of food deterioration is reduced.

According to some embodiments of the invention, the controlling the driving device to drive the turntable to rotate comprises:

and controlling the turntable to rotate clockwise or anticlockwise according to the distance parameter, wherein the distance parameter is the distance value between the communication port and the air return port of the temperature control compartment needing temperature control.

The rotating path with a smaller distance value between the communication port and the air return port of the temperature control chamber needing temperature control can be selected, and the rotating disc is controlled to rotate clockwise or anticlockwise according to the selected rotating path, so that when the communication port rotates towards the air inlet of the temperature control chamber corresponding to the temperature control request, the number of the air return ports of the temperature control chamber corresponding to the non-temperature control request is as small as possible, and the influence degree on the temperature in the temperature control chambers of other non-temperature control requests is reduced.

According to some embodiments of the invention, the communication area of the communication port to the air return port is adjusted by adjusting a rotation angle of the rotary disc. Through reducing or increasing the area of intercommunication mouth and return air inlet, can adjust the flow velocity of the indoor air of control by temperature change to the temperature variation speed of adjustment control by temperature change room can carry out accurate accuse temperature to control by temperature change room.

According to the operation control device of the third aspect of the present invention, when the operation control device is applied to a refrigerator, a first temperature control request for controlling the temperature of the temperature control compartment can be obtained, the driving device can be controlled to control the rotation of the turntable according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control compartment corresponding to the temperature control request, a channel for air circulation is formed between the air supply port and the air return port of the corresponding temperature control compartment, and the air pressure generated by the cooling fan in the air duct of the evaporator arranged behind the air supply direction of the cooling fan can be utilized, thereby realizing efficient adjustment of the temperature control compartment. According to the embodiment of the invention, the opening and closing of the return air inlets of the temperature control rooms are controlled by using the rotary disc, so that the temperature control requests of a plurality of temperature areas can be met, the air pressure generated by the refrigerating fan can be used, the temperature control efficiency of the temperature control rooms can be further improved under the condition of not increasing the cost, and the low-temperature storage range of the temperature control rooms can be effectively expanded.

A refrigerator according to a fourth aspect embodiment of the present invention includes: the return air temperature control mechanism of the first aspect embodiment and/or the operation control device of the third aspect embodiment comprises an evaporator, an evaporator air duct and a refrigeration fan for supplying air to the refrigeration chamber of the refrigerator, the refrigerating fan and the evaporator are arranged in the evaporator air duct, the evaporator air duct in front of the refrigerating fan along the air supply direction is a first air duct, the evaporator air duct behind the evaporator along the air supply direction of the refrigerating fan is a second air duct, the refrigerating fan is arranged in the second air duct, the return air temperature control mechanism further comprises at least two temperature control chambers, a rotary disc and a driving device for controlling the rotary disc to rotate, each temperature control chamber comprises an air supply opening and a return air opening, the rotary disc comprises a communication opening capable of corresponding to the return air opening, the air supply opening is communicated with the first air channel, and the return air opening can be communicated with the second air channel through the communication opening. The operation control device can obtain a first temperature control request for controlling the temperature of the temperature control chamber, and can control the driving device to control the rotating disc to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control chamber corresponding to the temperature control request, and a channel for air circulation is formed between the air supply port and the air return port of the corresponding temperature control chamber, thereby realizing the temperature regulation of the temperature control chamber. According to the embodiment of the invention, the opening and closing of the air return ports of the temperature control rooms are controlled by using the rotary disc, so that the temperature control of the temperature control rooms can be met, the air pressure generated by the refrigerating fan can be utilized, the temperature control efficiency of the temperature control rooms can be further improved under the condition of not increasing the cost, and the low-temperature storage range of the temperature control rooms can be effectively expanded.

A computer-readable storage medium according to an embodiment of the fifth aspect of the present invention stores computer-executable instructions for executing the return air temperature control method of the second aspect described above.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of a refrigerator provided with a return air temperature control mechanism according to an embodiment of the present invention;

fig. 2 is a schematic view of a return air temperature control mechanism and an operation control device according to an embodiment of the present invention;

fig. 3 is a schematic view of a rotary plate of a return air temperature control mechanism according to an embodiment of the present invention;

fig. 4 is a schematic view of a temperature-controlled compartment of a return air temperature-controlling mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view of a communication port of a return air temperature control mechanism in a first communication position according to an embodiment of the present invention;

fig. 6 is a schematic view of a communication port of the return air temperature control mechanism in a second communication position according to an embodiment of the present invention;

fig. 7 is a schematic view of a communication port of a return air temperature control mechanism in a first closed position according to an embodiment of the present invention;

fig. 8 is a schematic view of a return air temperature control mechanism according to another embodiment of the present invention;

fig. 9 is a flowchart of a return air temperature control method according to an embodiment of the present invention;

fig. 10 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

fig. 11 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

fig. 12 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

fig. 13 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

fig. 14 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

fig. 15 is a flow chart of a return air temperature control method according to another embodiment of the present invention;

FIG. 16 is a schematic diagram of an operation control device provided in accordance with an embodiment of the present invention;

fig. 17 is a schematic view of a refrigerator according to an embodiment of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, at least two means are one or more, a plurality means are at least two, and greater than, less than, more than, etc. are understood as excluding the present numbers, and above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

With the subdivision of temperature zones brought by the upgrading of user technology and the increasing abundance of food materials available for users, a plurality of refined storage spaces are needed, and the demand of creating refrigerators with multiple temperature zones to realize different functions is urgent. At present, the method for realizing the multi-temperature zone is realized by combining a turnover type electric air door with an air channel, especially when the temperature of a plurality of compartments is controlled, a plurality of air doors are required to be arranged, the structural design occupies too much space, the cost is higher, and the efficiency of temperature regulation and control of the temperature control compartments is lower.

Based on this, the invention provides a return air temperature control mechanism, a return air temperature control method, an operation control device and a refrigerator, wherein the return air temperature control mechanism comprises: evaporimeter, evaporimeter wind channel and be used for the refrigeration fan for the refrigeration room air supply of refrigerator, refrigeration fan, evaporimeter set up in the evaporimeter wind channel, and the evaporimeter is first wind channel along the evaporimeter wind channel in refrigeration fan air supply direction the place ahead, and the evaporimeter is the second wind channel along the evaporimeter wind channel at refrigeration fan air supply direction rear, and the refrigeration fan sets up in the second wind channel, and return air temperature control mechanism still includes: the temperature control room comprises an air supply opening and an air return opening, the rotary plate comprises a communication opening which can correspond to the air return opening, the air supply opening is communicated with the first air channel, the air return opening can be communicated with the second air channel through the communication opening, and the driving device controls the rotary plate to rotate according to a temperature control request of the temperature control room, so that the communication opening is communicated with the air return opening of the temperature control room corresponding to the temperature control request. The opening and closing of the air return openings of the temperature control rooms are controlled by the rotary disc, so that the temperature control of the temperature control rooms can be met, the occupied space is effectively reduced, the cost is reduced, and the temperature adjusting efficiency of the temperature control rooms is improved.

The embodiments of the present invention will be further explained with reference to the drawings.

The return air temperature control mechanism provided by an embodiment of the invention is applied to a refrigerator shown in fig. 1, the refrigerator comprises a refrigerating chamber 110 and a freezing chamber 120, the refrigerating chamber 110 comprises a refrigerating area 111, a refrigerating evaporator air duct, a refrigerating fan 112, a refrigerating evaporator 113, at least two temperature control chambers 114, a driving device 115 and a turntable 116, the refrigerating fan 112 and the refrigerating evaporator 113 are arranged in the refrigerating evaporator air duct, the evaporator air duct of the refrigerating evaporator 113 in front of the air supply direction of the refrigerating fan 112 is a first air duct, the evaporator air duct of the refrigerating evaporator 113 behind the air supply direction of the refrigerating fan 112 is a second air duct, the refrigerating fan 112 is arranged in the second air duct, the temperature control chambers 114 are arranged in the refrigerating area 111 and comprise an air supply opening 117 and a return air opening 118, the temperature control chambers 114 are communicated with the refrigerating evaporator air duct through the air supply opening 117 and the return air opening 118, the turntable 116 is arranged between the return air opening 118 and the refrigerating evaporator air duct, the driving device 115 is connected with the turntable 116, the freezing chamber 120 comprises a freezing area 121, a freezing fan 122, a freezing evaporator 123 and a freezing evaporator air duct, and the freezing evaporator 123 and the freezing fan 122 are arranged in the freezing evaporator air duct.

Referring to fig. 2-3, the return air temperature control mechanism according to the embodiment of the present invention includes a refrigeration evaporator 113, an evaporator air duct, and a refrigeration fan 112 for supplying air to a refrigerating chamber of the refrigerator, where the refrigeration fan 112 and the refrigeration evaporator 113 are disposed in the refrigeration evaporator 113 air duct, the refrigeration evaporator 113 air duct in front of the refrigeration evaporator 113 along the air supply direction of the refrigeration fan 112 is a first air duct, the refrigeration evaporator 113 air duct in back of the refrigeration evaporator 113 along the air supply direction of the refrigeration fan 112 is a second air duct, the refrigeration fan 112 is disposed in the second air duct, the return air temperature control mechanism further includes at least two temperature control chambers 114, a turntable 116, and a driving device 115 for controlling rotation of the turntable 116, each temperature control chamber 114 includes an air supply opening 117 and a return air opening 118, the turntable 116 includes a communication opening 310 capable of corresponding to the return air opening 118, where the air supply opening 117 is communicated with the first air duct, the return air opening 118 can communicate with the second air duct through the communication opening 310, and the driving device 115 controls the rotation of the turntable 116 according to the temperature control request of the temperature-controlled compartment 114, so that the communication opening 310 communicates with the return air opening 118 of the temperature-controlled compartment 114 corresponding to the temperature control request.

It should be noted that the return air temperature control mechanism is not limited to be used in the refrigerating chamber of the refrigerator, but may be used in the freezing chamber or other chambers of the refrigerator.

Because the refrigerating fan 112 is arranged in the second air duct, air in the temperature control room 114 can be pumped out and conveyed to the refrigerating evaporator 113 through the air return opening 118, compared with the refrigerating fan 112 arranged above the refrigerating evaporator 113, the air pressure generated by the refrigerating fan 112 in operation can better act on the air return opening 118, the return air pressure of the temperature control room 114 can be improved, the air flowing speed between the air supply opening 117 and the air return opening 118 of the temperature control room 114 is higher, the temperature regulation efficiency of the temperature control room 114 is improved, insufficient cold quantity of the temperature control room 114 is effectively prevented, and the lowest temperature of the temperature control room 114 can be reduced.

Note that the refrigerating fan 112 is disposed near the return air opening 118. The refrigerating fan 112 can be disposed at the same horizontal position as the air return opening 118 or at the position forward to the air supply direction at the same horizontal position, so that the refrigerating fan 112 can better rapidly draw out the air in the temperature control compartment 114 through the air return opening 118 and enable the air outside the temperature control compartment 114 to rapidly enter the temperature control compartment 114 from the air supply opening 117, thereby achieving rapid temperature adjustment of the temperature control compartment 114.

Further, the refrigerating fan 112 may be disposed opposite to the refrigerating evaporator 113 along the air blowing direction thereof, and a water blocking device may be disposed on the second air duct between the refrigerating evaporator 113 and the refrigerating fan 112. The cold-stored fan 112 can be just to hiding the setting of evaporimeter 113 along its air supply direction, for preventing to hide the use that the water droplet that evaporimeter 113 produced when the work influences cold-stored fan 112, can set up water stop device on cold-stored fan 112 and the second wind channel of hiding between the evaporimeter 113, because cold-stored fan 112 and cold-stored evaporimeter 113 set up in same vertical region, the cold-stored fan 112 of this embodiment and water stop device's structure can enough improve the efficiency of the temperature regulation and control of temperature control room 114, can also prevent under the condition of guaranteeing space utilization that cold-stored fan 112 receives the problem that the water droplet of cold-stored evaporimeter 113 influences.

It should be noted that the water blocking device may be a water blocking partition or a water receiving tray, or may be another device capable of preventing water from dropping onto the refrigeration fan 112, and the embodiment of the present invention is not limited.

In an embodiment, the water stop device is a water stop partition, and the water stop partition is disposed between the refrigerating fan 112 and the refrigerating evaporator 113, so that when water drops fall, the water stop partition can guide the water drops to flow to a non-dropping area, and the water drops can be prevented from falling onto the refrigerating fan 112, thereby prolonging the service life of the refrigerating fan 112.

In an embodiment, the water stop device is a water pan, and the water pan is disposed between the refrigerating fan 112 and the refrigerating evaporator 113, so that when water drops fall, the water pan can receive the water drops, and the water drops can be prevented from falling onto the refrigerating fan 112, thereby prolonging the service life of the refrigerating fan 112.

Further, the refrigerating fan 112 and the refrigerating evaporator 113 are arranged in the second air duct in a staggered mode along the air supply direction of the refrigerating fan 112, the refrigerating fan 112 can avoid water drops flowing upwards and downwards from the refrigerating evaporator 113 through the arrangement of the position, the return air pressure of the temperature control room 114 can be improved, the air flowing speed between the air supply opening 117 and the return air opening 118 of the temperature control room 114 is higher, and therefore the temperature regulation and control efficiency of the temperature control room 114 is improved. An air duct plate can be arranged on one side of the refrigerating fan 112, and the air pumped out from the return air inlet by the refrigerating fan 112 can be conveyed to the refrigerating evaporator 113 more intensively under the action of the air duct plate, so that the air supply efficiency of the refrigerating fan 112 is improved.

Because the temperature-controlled compartment 114 is provided with the air supply outlet 117 and the air return outlet 118, the temperature-controlled compartment 114 realizes the circulation with the air outside the temperature-controlled compartment 114 through the air supply outlet 117 and the air return outlet 118, the air outside the temperature-controlled compartment 114 can enter the temperature-controlled compartment 114 from the air supply outlet 117 and flow out from the air return outlet 118, and in the process, the heat exchange between the inside and the outside of the temperature-controlled compartment 114 can be realized through the flow of the air, therefore, the temperature of the temperature-controlled compartment 114 can be adjusted by controlling the circulation state of the air flow channel, in the embodiment of the invention, the communication state of the air return outlets 118 of more than two temperature-controlled compartments 114 is controlled by the communication outlet 310 on the turntable 116, based on the control of the rotation of the turntable 116 by the driving device 115 according to the temperature control request, the communication outlet 310 is communicated with the air return outlet 118 of the temperature-controlled compartment 114 corresponding to the temperature-controlled compartment 114, and a passage for the circulation of the air is formed between the air supply outlet 117 and the air return outlet 118 of the corresponding temperature-controlled compartment 114, thereby achieving the adjustment of the temperature control compartment 114. Note that the temperature control request is used to control the temperature of the temperature control compartment 114.

Further, in the embodiment of the present invention, since the communication port 310 on the control dial 116 is in a communication state with the air return port 118 of the temperature-controlled room 114 that needs to be controlled in temperature, so as to realize temperature control over the temperature-controlled room 114, the shape or area of the communication port 310 is different from that of the air return port 118, and a situation that temperature control over the temperature-controlled room 114 cannot be performed will not occur. Based on this, the embodiment of the present invention does not limit the shape of the communication port 310, the communication port 310 may be in a fan shape, a square shape, a circular shape, or other irregular shapes, or the area of the communication port 310 is not limited, and the area of the communication port 310 may be larger than the air return opening 118 or smaller than the air return opening 118.

It should be noted that, if the communication port 310 and the return air opening 118 have the same shape, but the area of the communication port 310 is smaller than that of the return air opening 118, the air flowing out of the return air opening 118 is affected by the flux of the communication port 310, so as to reduce the temperature control efficiency of the temperature control compartment 114, therefore, in an embodiment of the present invention, the shape and the area of the communication port 310 and the return air opening 118 are set to be the same, when the communication port 310 and the return air opening 118 are controlled to be communicated, because the shape and the size of the communication port 310 and the return air opening 118 are the same, and the communication port 310 and the return air opening 118 are in matching communication, at this time, the air flowing out through the return air opening 118 can all flow out without affecting the air flowing out speed.

The number of the communication ports 310 provided on the turntable 116 may be one or more than two, and when the number of the communication ports 310 provided on the turntable 116 is one, the communication ports 310 can be controlled to be communicated with the air return openings 118 of the plurality of temperature control compartments 114 one by one, so as to realize temperature control of the plurality of temperature control compartments 114, in addition, more than two communication ports 310 may be provided, and the communication ports 310 are used for simultaneously controlling the communication state of the air return openings 118 of the more than two temperature control compartments 114, so as to realize temperature control of the plurality of temperature control compartments 114.

The connection between the driving device 115 and the turntable 116 includes:

in the first aspect, the driving device 115 is provided with a rotating shaft, the rotating shaft can be connected with the center of the turntable 116, and the turntable 116 can be driven to rotate by the rotation of the rotating shaft, so that the control of the turntable 116 is realized.

In a second aspect, the driving device 115 is provided with a rotating wheel, and the rotating wheel is connected with the edge of the rotating disc 116, and the edge motion can be controlled through the rotation of the rotating wheel, so as to drive the rotating disc 116 to rotate.

The connection between the driving device 115 and the turntable 116 is not limited to the above connection, and may be another connection. The drive device 115 may be a servo motor, stepper motor, or other rotating device.

Further, the projection of the return air opening 118 in the direction of the turntable 116 overlaps with the rotation path of the communication opening 310. When the turntable 116 rotates, a rotating path can be formed in the rotating process of the communication port 310, and since the projection of the center of the air return port 118 to the direction of the turntable 116 is overlapped with the rotating path of the communication port 310, the projection of the communication port 310 and the air return port 118 to the direction of the turntable 116 can be at least partially overlapped by controlling the rotation of the turntable 116, so that the communication port 310 is communicated with the air return port 118 of the temperature control chamber, and the communication state of the air return port 118 is controlled.

The rotation path is a region formed during the rotation of the communication port 310 about the rotation axis of the turntable 116, that is, the rotation path of the communication port 310 may be a set of arbitrary positions during the rotation of the communication port 310 about the rotation axis of the turntable 116.

For example, the communication port 310 may be a circular hole, and a circular rotation path may be formed when the communication port 310 rotates once in one direction around the rotation axis of the turntable 116. For example, the communication port 310 may be a circular hole, and when the communication port 310 is rotated by a certain angle in one direction around the rotation axis of the turntable 116, an arc-shaped rotation path having semicircular ends can be formed. Another example is: the communication port 310 may be a rectangular hole, and a circular rotation path can be formed when the communication port 310 rotates once in one direction around the rotation axis of the turntable 116. For example, the communication port 310 may be a rectangular hole, and when the communication port 310 is rotated by a certain angle in one direction around the rotation axis of the turntable 116, an arc-shaped rotation path having both ends at right angles can be formed.

It should be noted that, overlapping means that the positions and shapes of two components or reference figures are identical in space, and overlapping means that at least a part of the intersection exists between the two components or reference figures.

In an embodiment, the communication port 310 and the air return port 118 are circular holes with the same size, the communication port 310 rotates to form a rotation path, and since the projection of the air return port 118 to the direction of the turntable 116 is overlapped with the rotation path of the communication port 310, a state exists, so that the center of the communication port 310 can be overlapped with the projection of the center of the air return port 118 to the direction of the turntable 116, at this time, the air return port 118 and the communication port 310 can completely correspond to each other, the communication port 310 is communicated with the air return port 118 of the temperature control compartment, and thus the temperature of the plurality of temperature control compartments 114 can be better controlled.

By controlling the rotation angle of the turntable 116, the communication port 310 on the turntable 116 can be communicated with the air return port 118 of the temperature-controlled compartment 114 corresponding to the temperature control request, or the communication port 310 on the turntable 116 can be staggered with the air return port 118 of the temperature-controlled compartment 114, so that the air return port 118 closes the communication state of the communication port 310 on the controllable turntable 116 and the air return port 118 of the temperature-controlled compartment 114 requiring temperature control, and therefore, the communication state of the air return ports 118 of the plurality of temperature-controlled compartments 114 can be controlled through the turntable 116, and the temperature of the plurality of temperature-controlled compartments 114 can be controlled.

Furthermore, after the air return opening 118 is closed, the air subsequently entering the temperature-controlled compartment 114 through the air supply opening 117 cannot flow out from the closed air return opening 118, so that the air pressure in the temperature-controlled compartment 114 is higher than the air pressure outside the air return opening 118, and therefore, under the action of the air pressure difference between the air pressure and the air pressure, the air in the temperature-controlled compartment 114 can quickly flow out from the air return opening 118 after the communication opening 310 of the driving device 115 controlling the turntable 116 is communicated with the air return opening 118 and before the air pressure of the two is balanced. Therefore, compared with the conventional method of controlling the temperature of the temperature-controlled compartment 114 through a plurality of air supply dampers, the temperature regulation of the temperature-controlled compartment 114 is more efficient by controlling the opening and closing of the air return opening 118 through the turntable 116 in the present embodiment.

Referring to fig. 2, the return air temperature-controlling mechanism of the above embodiment may be matched with an operation control device to implement the temperature control operation on the temperature-controlled compartment 114, where the operation control device includes a control processor 210 and a memory 220, the control processor 210 and the memory 220 may be connected through a bus, the control processor 210 is electrically connected to the driving device 115 in the return air temperature-controlling mechanism, and the control processor 210 may invoke a return air temperature-controlling program stored in the memory 220, so as to issue a temperature-controlling instruction corresponding to the relevant temperature-controlling request to the driving device 115.

Referring to fig. 4 to 6, the return air temperature control mechanism includes a first temperature-controlled compartment 410 and a second temperature-controlled compartment 420, the first temperature-controlled compartment 410 includes a first return air opening 411, the second temperature-controlled compartment 420 includes a second return air opening 421, and the driving device 115 controls the communication opening 310 of the turntable 116 to rotate from a first communication position to a second communication position according to a temperature control request, the first communication position corresponding to the first return air opening 411, and the second communication position corresponding to the second return air opening 421.

When the communication port 310 is communicated with the first air return opening 411 at the first communication position, if the second temperature-control compartment 420 needs temperature control, the driving device 115 may control the communication port 310 of the turntable 116 to rotate from the first communication position to the second communication position according to a temperature control request, so that the communication port 310 is communicated with the second air return opening 421, thereby implementing temperature control on the second temperature-control compartment 420.

It should be noted that a first setting condition may also be set, so that the communication port 310 may be maintained at the first communication position, and after the first setting condition is reached, the driving device controls the communication port of the turntable to rotate from the first communication position to the second communication position, thereby effectively solving the problem that the temperature control in one of the temperature control chambers is not satisfied due to the too short time interval of the temperature control requirements of the two temperature control chambers.

In one embodiment, the first set condition may be that the temperature of the first temperature-controlled compartment 410 reaches a first target temperature.

For example: when the temperature of the multiple temperature-control compartments 114 needs to be controlled, the communication port 310 can be maintained at the first communication position, after the temperature of the first temperature-control compartment 410 reaches the first target temperature, the driving device 115 controls the communication port 310 of the turntable 116 to rotate from the first communication position to the second communication position, and the communication port 310 can be maintained at the second communication position until the temperature of the second temperature-control compartment 420 reaches the second target temperature, that is, the driving device 115 can sequentially manage the temperatures of the multiple temperature-control compartments 114 according to the set conditions, so that the temperatures of the multiple temperature-control compartments 114 can be controlled.

In another embodiment, the first set condition is that the communication port 310 of the dial 116 is maintained at the first communication position for a first period of time.

For example: when there are multiple temperature control compartments 114 that need to be temperature controlled, the driving device 115 may control the communication port 310 of the turntable 116 to rotate to the first communication position according to the first temperature control request, the communication port 310 may be kept at the first communication position, and after the keeping time reaches the first duration, the driving device 115 controls the communication port 310 of the turntable 116 to rotate from the first communication position to the second communication position again, and the communication port 310 may be kept at the second communication position until the keeping time reaches the second duration. That is, the drive device 115 can sequentially control the temperatures of the plurality of temperature-controlled compartments 114 in accordance with the set conditions, thereby controlling the temperatures of the plurality of temperature-controlled compartments 114.

Referring to fig. 4, 5, and 7, the return air temperature control mechanism includes a first temperature control compartment 410, the first temperature control compartment 410 includes a first return air opening 411, the driving device 115 controls the communication opening 310 of the rotary disk 116 to rotate from the first communication position to the first closing position according to the temperature control request, so as to close all the return air openings on the return air temperature control mechanism, and the first communication position corresponds to the first return air opening 411, or controls the communication opening 310 of the rotary disk 116 to rotate from the first closing position to the first communication position according to the temperature control request, thereby controlling the temperatures of the multiple temperature control compartments.

For example, the temperature of the first temperature control compartment 410 reaches the preset temperature and the other temperature control compartments do not have temperature control requirements, the driving device 115 can control the communication port 310 of the turntable 116 to rotate from the first communication position to the first closing position, the blocking effect of the turntable 116 can close the return air inlet on the return air temperature control mechanism, the air in the temperature control compartment 114 can not flow out through the return air inlet, and therefore the temperature control compartment 114 can realize the heat preservation effect.

For another example, when the communication port 310 is located at the first closed position, the temperature of the first temperature-controlled compartment 410 needs to be controlled, and the driving device 115 may control the communication port 310 of the turntable 116 to rotate from the first closed position to the first communication position, so that the communication port 310 communicates with the first air return opening 411, and a passage through which air flows is formed between the air supply opening and the air return opening of the temperature-controlled compartment 114, thereby adjusting the temperature of the first temperature-controlled compartment 410.

It should be noted that one side of the plurality of temperature-controlled compartments constitutes a compartment outer wall, the turntable 116 is disposed on one side of the compartment outer wall, and a position corresponding to a portion of the compartment outer wall excluding the return air inlet is defined as a first closed position.

In practical applications, the rotating disc 116 may rotate frequently according to a temperature control request, and there is an error in mechanical rotation, where the error is accumulated continuously when there is an error in one rotation, and the error is increased and decreased due to the error, and the setting of the fixed closing position is equivalent to resetting the rotating disc 116, and the error can be cleared.

In another embodiment of the first closing position, the first closing position is a near position, the near position may be a position relatively close to the first communication position and any other two communication positions, and in practical applications, the position relatively close to the first communication position and any other two communication positions may be selected according to the first communication position of the communication port 310, and the communication port 310 is controlled to rotate to the near position, so that the rotating distance of the driving device 115 can be reduced, and the service life of the driving device 115 can be prolonged.

Of course, one skilled in the art can also randomly set the closed position of the communication port 310 of the dial 116. The return air opening 118 can be controlled to be closed by staggering the communication opening 310 and the return air opening 118.

Referring to fig. 8, in another embodiment of the return air temperature control mechanism of the present invention, the return air temperature control mechanism includes a rectangular temperature control compartment array formed by four temperature control compartments 114, a turntable 116 is disposed at one side of the temperature control compartment array, the turntable 116 is a disk covering return air inlets 118 of the four temperature control compartments 114, and an air supply outlet 117 of the temperature control compartment 114 is disposed at one side of the temperature control compartment array corresponding to the turntable 116 and avoids a coverage area of the disk.

For example: the disc is arranged on one side of the grid-shaped temperature control room array, the projection of the disc can completely fall on one side of the temperature control room array, the disc is arranged at a position capable of covering the air return openings 118 of the four temperature control rooms 114, one side of the temperature control room array can be enabled to leave a certain area except the coverage area of the projection of the disc, the area can be provided with the air supply opening 117, the structural design can reduce the occupied space of an air return control mechanism, the air return openings 118 and the air supply opening 117 can be arranged on the same side of the temperature control room array, and when the air return temperature control mechanism is applied to a refrigerator, the air duct design can be simplified.

Referring to fig. 1, the return air temperature control mechanism of the present invention is applied to an embodiment of a refrigerator, the refrigerator includes an evaporator air duct, the evaporator air duct is an air duct in which an evaporator of the refrigerator is located, and is configured to provide cold air for a refrigerating chamber 111 or a freezing chamber 121 of the refrigerator, and a return air inlet 118 of a temperature control compartment 114 can be communicated with the evaporator air duct through a communication port 310 of a turntable 116.

The temperature-controlled compartment 114 may be provided in the freezing zone or in a separate zone. Only the air supply opening 117 of the temperature control chamber 114 and the communication opening 310 of the turntable 116 need to be communicated with the corresponding evaporator air duct, so that a channel for air circulation can be formed between the air supply opening 117 and the air return opening 118 of the corresponding temperature control chamber 114, and the temperature of the temperature control chamber 114 can be adjusted.

It should be noted that the evaporator air duct may be a refrigeration evaporator air duct, or other evaporator air ducts. The evaporator may be the refrigerating evaporator 113 installed in the refrigerating evaporator air duct, the freezing evaporator 123 installed in the freezing evaporator air duct, or an evaporator installed in another evaporator air duct.

Furthermore, the evaporator air duct further comprises an air outlet duct positioned above the evaporator and a return air duct arranged below the evaporator, the air supply outlet 117 of the temperature control room 114 is communicated with the air outlet duct, and the return air inlet 118 of the temperature control room 114 is communicated with the return air duct.

Because the air outlet duct above the evaporator can convey cold, the air return duct below the evaporator can convey heat to the evaporator, based on which, the air supply outlet 117 of the temperature control room 114 can be communicated with the air outlet duct, and the air return inlet 118 is communicated with the air return duct, cold is conveyed to the temperature control room 114 through the air supply outlet 117 by using the air pressure of the air outlet duct, and then the heat in the temperature control room 114 is conveyed to the air return duct through the air return inlet 118, so that the temperature of the temperature control room 114 can be controlled by using the air outlet duct above the evaporator.

According to the return air temperature control mechanism in the above embodiment, in practical applications, a plurality of temperature control requests may often occur, and in order that the driving device 115 can normally and orderly control the communication port 310 of the turntable 116 to rotate, so as to meet the temperature control requirements of the plurality of temperature control compartments 114, the plurality of temperature control requests need to be sorted according to the priorities of the temperature control requests, so that the driving device 115 can control the rotation position of the turntable 116 according to the priorities of the temperature control requests.

It should be noted that the priority of the temperature control request includes the following two aspects:

in a first aspect: the temperature control request corresponding to the temperature control room 114 with the temperature difference larger than the threshold value is prioritized, and the temperature difference is the difference between the current temperature of the temperature control room 114 and the preset temperature. When the temperature control device is used, a plurality of temperature control requests occur, and one temperature control request is a temperature control request corresponding to the temperature control chamber 114 with the temperature difference larger than the threshold value, at this time, the food in the temperature control chamber 114 with the temperature difference larger than the threshold value is greatly influenced by the temperature, and the risk of deterioration is easy to occur, the driving device 115 can control the communication port 310 of the turntable 116 to be preferentially communicated with the air return port 118 in the temperature control chamber 114, and preferentially adjust the temperature of the temperature control chamber 114, so that the risk of deterioration of the food is reduced.

In a second aspect: the temperature control request corresponding to the temperature control room 114 having a high priority level is assigned with priority. In actual use, food with higher temperature sensitivity is placed in the temperature control chamber 114 with higher priority, and when the temperature control chamber 114 with higher priority needs temperature control, in order to ensure that the storage of such food is not affected by temperature, the driving device 115 can control the communication port 310 of the turntable 116 to be preferentially communicated with the air return port 118 in the temperature control chamber 114 with higher priority, and preferentially adjust the temperature of the temperature control chamber 114, thereby reducing the risk of food deterioration.

It should be noted that the priority level of the temperature control compartment 114 may be a default setting or may be set by a user, and the invention is not limited thereto.

The embodiment of the invention provides a return air temperature control method, which is applied to an operation control device of a return air temperature control mechanism in the embodiment, wherein the return air temperature control mechanism is described in detail in the embodiment and is not described again. Referring to fig. 9, the return air temperature control method according to the embodiment of the present invention includes the following steps:

s910: acquiring a first temperature control request for controlling the temperature of a temperature control compartment;

when the temperature of the temperature-controlled compartment does not reach the target temperature, a first temperature-controlled request for controlling the temperature of the temperature-controlled compartment can be acquired, and according to the temperature control condition of the temperature-controlled compartment, the first temperature-controlled request may include: a cooling request, a heating request.

The temperature control chamber is a high-temperature chamber, and the temperature of the temperature chamber is lower than the target temperature, so that the first temperature control request is correspondingly a heating request;

the temperature control chamber is a low-temperature chamber, the temperature of the temperature control chamber is higher than the target temperature, and the first temperature control request corresponds to a refrigeration request.

S920: and controlling the driving device to drive the turntable to rotate according to the first temperature control request, and controlling the communication state of the air return inlet of the temperature control chamber corresponding to the temperature control request.

By controlling the rotation angle of the turntable, the communication port on the turntable can be communicated with the air return port of the temperature control chamber, and the communication port on the turntable can also be staggered with the air return port of the temperature control chamber, so that the air return port is closed.

The communicating port on the control turntable can be controlled to be communicated with the air return ports of the temperature control rooms with required temperature control, so that the communicating state of the air return ports of the temperature control rooms can be controlled through the turntable, and the temperature of the temperature control rooms can be controlled.

It should be noted that, because the current position of the communication port may be determined according to the prior control, when different temperature control requests are obtained, the driving device needs to be controlled to drive the communication port of the turntable to rotate according to the current position of the communication port and the temperature control request, so as to control the communication state of the air return port of the temperature control compartment corresponding to the temperature control request. The step of controlling the driving device to drive the turntable to rotate according to the temperature control request and controlling the communication state of the return air inlet of the temperature control chamber corresponding to the temperature control request can comprise the following five aspects:

in a first aspect: when the communication port is located at the first communication position, the temperature control request of the second temperature control chamber is obtained, the temperature control request of the second temperature control chamber can be confirmed as the first temperature control request, and the communication port of the turntable can be controlled to rotate from the first communication position to the second communication position according to the first temperature control request.

In a second aspect: when the communication port is at the first communication position and the temperature control requirement of the first temperature control chamber is completed, the communication port of the turntable can be controlled to rotate from the first communication position to the first closing position,

in a third aspect: when all the air return openings are closed, a first temperature control request of the first temperature control chamber is obtained, the communication opening of the rotary disc can be controlled to rotate from the first closed position to the first communication position,

in a fourth aspect: when the communication port is at the first communication position, the temperature control request of the second temperature control chamber is obtained, or the communication port is kept at the first communication position, after the first set condition is reached, the communication port of the control turntable is controlled to rotate from the first communication position to the second communication position,

in a fifth aspect: when the communication port is located at the first communication position, the temperature control request of the second temperature control compartment is obtained, the communication port can also be kept at the first communication position, and after the first set condition is reached, the communication port of the control turntable is controlled to rotate to the second communication position from the first communication position and is kept at the second communication position until the second set condition is reached.

It should be noted that, in the return air temperature control method, the method for controlling the rotation of the communication port includes, but is not limited to, the five aspects listed above, and other methods are also possible, and are not listed here.

By the return air temperature control method, the communication ports can be controlled to rotate or keep positions at different positions, so that the communication state of the communication ports and the return air ports is changed, and the different temperature control requirements of a plurality of temperature control rooms can be met.

The first setting condition includes the following two aspects:

in a first aspect: the temperature of the first temperature-controlled compartment reaches a first target temperature. When the temperature control request of the second temperature control chamber is acquired, the driving device controls the communication port of the turntable to rotate to the second communication position, the situation that the first temperature control request is not met is possible, a first set condition can be set, the communication port is kept at the first communication position, after the temperature of the first temperature control chamber reaches a first target temperature, the communication port of the turntable is controlled to rotate to the second communication position from the first communication position, and the problem of the first temperature control request is effectively avoided.

In a second aspect: the communication port of the dial is maintained at the first communication position for a first period of time. When the temperature control request of the second temperature control chamber is acquired, the driving device controls the communication port of the turntable to rotate to the second communication position, the situation that the first temperature control request is not met is possible, a first set condition can be set, the communication port is kept at the first communication position, after the time reaches a first time length, the communication port of the turntable is controlled to rotate to the second communication position from the first communication position, and the problem of the first temperature control request is effectively avoided.

The first setting condition includes, but is not limited to, the above-described conditions in both aspects, and may be other conditions, which are not described here.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 10, fig. 10 is a schematic view of an embodiment of a refinement procedure of step S910 in fig. 9, where step S910 includes, but is not limited to:

s1010: acquiring more than two temperature control requests;

more than two temperature control requests are acquired, and the temperature control requests can be acquired simultaneously or sequentially in the time dimension; the priority dimension may be the same priority or different priorities.

S1020: judging the priority of more than two temperature control requests, and determining the temperature control request with the highest priority as a first temperature control request.

The acquired more than two temperature control requests are judged according to the priority, the temperature control request with the highest priority can be determined as the first temperature control request, the driving device is controlled to drive the rotary table to rotate according to the first temperature control request, the communication state of the air return opening of the temperature control chamber corresponding to the temperature control request is controlled, an air circulation channel is formed between the air supply opening and the air return opening of the corresponding temperature control chamber, and therefore the temperature of the temperature control chamber is adjusted.

It should be noted that the determination of the priority may be based on the time sequence of obtaining the temperature control request, may be based on the distance between the communication port and the return air inlet of the temperature control compartment corresponding to the temperature control request, may be based on the priority of the temperature control compartment corresponding to the temperature control request, or may be based on the difference between the current temperature of the temperature control compartment and the target temperature. The determination of the priority includes, but is not limited to, the above listed priority conditions, and may be other priority conditions, which are not listed here.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 11, fig. 11 is a schematic view of an embodiment of a refinement procedure of step S1020 in fig. 10, where step S1020 includes, but is not limited to:

s1100, the temperature control request corresponding to the temperature control room with the high priority level is designated as a first temperature control request.

If a plurality of temperature control requests exist and at least one temperature control request corresponding to a temperature control room with a high assigned priority level exists, in order to ensure the freshness of food in the temperature control room, the temperature control request corresponding to the temperature control room with the high assigned priority level is determined as a first temperature control request, and the driving device is controlled to drive the turntable to rotate according to the first temperature control request, so that the communication port is communicated with the return air port of the temperature control room corresponding to the first temperature control request, and the temperature control requirement of the temperature control room with the high assigned priority level can be met preferentially.

It should be noted that the priority level of the temperature control compartment may be a default setting or may be set by a user, and the present invention is not limited thereto.

In an embodiment, in the process of daily use, a customer can set the priority of a temperature control room for storing food according to the importance of the food or according to the characteristics of the food, for example, for dry food, the food needs to be stored at a stable low temperature, if the temperature change of the stored temperature control room is large, the food may absorb moisture and mildew, so that the temperature control requirement of the temperature control room for storing the food needs to be preferentially processed, the temperature control room for the food can be set as a high-priority temperature control room, therefore, when three temperature control requests are obtained simultaneously, the temperature control rooms corresponding to the three temperature control requests comprise one high-priority temperature control room, the temperature control request corresponding to the high-priority temperature control room can be designated as a first temperature control request, the driving device is controlled to drive the turntable to rotate, so that the communication port is communicated with the return air port of the temperature control room corresponding to the first temperature control request, a channel for air circulation is formed between the air supply outlet and the air return inlet of the temperature control chamber with high priority level, so that the temperature of the temperature control chamber can be preferentially adjusted, and the risk of moisture absorption and mildew of food is reduced.

In an embodiment, a customer can put food into a temperature control chamber with high priority according to the importance of the food storage or according to the characteristics of the food, for example, for ice cream, the food needs to be stored at a stable low temperature, if the temperature of the temperature control chamber is increased more, the food may be melted, so that the temperature control requirement of the temperature control chamber in which the food is stored needs to be preferentially processed, and the food can be put into a default or preset temperature control chamber with high priority, so when two temperature control requests are obtained at different times, the temperature control chamber corresponding to the subsequent temperature control request is the temperature control chamber with high priority, the temperature control request corresponding to the temperature control chamber with high priority can be designated as the first temperature control request, and the communication state of the communication port and the return air port of the temperature control chamber corresponding to the prior temperature control request does not need to be judged, the driving device can be controlled to drive the rotary disc to rotate, the communication port is communicated with the air return port of the temperature control chamber corresponding to the first temperature control request, a channel for air circulation is formed between the air supply port and the air return port of the temperature control chamber with the high priority level, the temperature of the temperature control chamber can be preferentially regulated, and the risk of food melting is reduced.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 12, fig. 12 is a schematic diagram of an embodiment of a refinement process of step S1020 in fig. 10, where step S1020 includes but is not limited to:

s1200, determining a first temperature control request according to a temperature difference of a temperature control room corresponding to the temperature control request, wherein the temperature difference is a difference value between the current temperature of the temperature control room and a preset temperature.

If a plurality of temperature control requests occur, the temperature control requests can be sequenced according to the temperature difference of the temperature control chambers corresponding to the temperature control requests, the temperature control request corresponding to the temperature control chamber with the larger temperature difference can be determined as a first temperature control request, and the driving device is controlled to drive the turntable to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control chamber corresponding to the first temperature control request, and the temperature control requirements of the temperature control chambers with different temperature differences are met.

In one embodiment, when two temperature control requests are acquired, the priority of the temperature control rooms corresponding to the two temperature control requests is the same, the difference between the current temperature and the preset temperature of the temperature control chamber corresponding to the subsequent temperature control request is larger than that of the temperature control chamber corresponding to the previous temperature control request, the temperature control request corresponding to the temperature control compartment with a larger difference between the current temperature and the preset temperature can be designated as the first temperature control request without judging the communication state of the communication port and the return air inlet of the temperature control compartment corresponding to the prior temperature control request, the driving device can be controlled to drive the rotary disc to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control chamber corresponding to the first temperature control request, and a channel for air circulation is formed between the air supply port and the air return port of the temperature control chamber with the high priority level, so that the temperature of the temperature control chamber can be preferentially regulated, and the risk of food deterioration is reduced.

In one embodiment, when the communication port is communicated with the second air return port of the second temperature control compartment, two temperature control requests are obtained, the priorities of the temperature control compartments corresponding to the two temperature control requests are the same, the difference between the current temperature and the preset temperature of the temperature control compartment corresponding to the subsequent temperature control request is greater than that of the temperature control compartment corresponding to the prior temperature control request, the temperature control request corresponding to the temperature control compartment with the greater difference between the current temperature and the preset temperature can be designated as the first temperature control request, after the temperature of the second temperature control compartment reaches the preset temperature, the driving device can be controlled to drive the rotary disc to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control compartment corresponding to the first temperature control request, a passage for air circulation is formed between the air supply port and the air return port of the temperature control compartment with the greater difference between the temperature and the preset temperature, and the preferential adjustment of the temperature control compartment temperature is realized, reducing the risk of food spoilage.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 13, fig. 13 is a schematic diagram of an embodiment of a refinement process of step S1200 in fig. 12, where the step S1200 includes, but is not limited to:

s1300: and the temperature control request corresponding to the temperature control chamber with the temperature difference value larger than the threshold value is a first temperature control request.

If a plurality of temperature control requests occur, and at least one temperature control request corresponding to a temperature control chamber with a temperature difference larger than a threshold exists, the difference between the food in the temperature control chamber with the temperature difference larger than the threshold and the effective fresh-keeping temperature is large, the risk of food deterioration easily occurs, and the temperature control request corresponding to the temperature control chamber with the temperature difference larger than the threshold can be determined as the first temperature control request, so that the temperature control requirement of the temperature control chamber with the temperature difference larger than the threshold can be preferentially met, and the risk of food deterioration is eliminated.

In one embodiment, when the communication port is communicated with the second air return port of the second temperature control chamber, two temperature control requests are obtained, the priority of the temperature control chamber corresponding to the two temperature control requests is the same, the difference value between the current temperature of the temperature control compartment corresponding to the subsequent temperature control request and the preset temperature is larger than the threshold value, the temperature control request corresponding to the temperature control chamber with a larger difference between the current temperature and the preset temperature can be designated as the first temperature control request without waiting for the temperature of the second temperature control chamber to reach the preset temperature, the driving device can be directly controlled to drive the rotary disc to rotate according to the first temperature control request, the communication port is communicated with the air return port of the temperature control chamber corresponding to the first temperature control request, a channel for air circulation is formed between the air supply port and the air return port of the temperature control chamber with the larger difference value between the temperature and the preset temperature, the temperature of the temperature control chamber can be preferentially regulated, and the risk of food deterioration is reduced.

In one embodiment, when the communication port is communicated with a second air return port of a second temperature control compartment, the second temperature control compartment is a high-priority temperature control compartment, two temperature control requests are obtained, the priorities of the temperature control compartments corresponding to the two temperature control requests are the same, the difference value between the current temperature and the preset temperature of the temperature control compartment corresponding to the subsequent temperature control request is greater than a threshold value, the temperature control request corresponding to the temperature control compartment with the greater difference value between the current temperature and the preset temperature can be designated as a first temperature control request, after the temperature of the second temperature control compartment reaches the preset temperature, the driving device can be controlled to drive the turntable to rotate according to the first temperature control request, so that the communication port is communicated with the air return port of the temperature control compartment corresponding to the first temperature control request, a passage for air circulation is formed between the air supply port and the air return port of the temperature control compartment with the greater difference value between the temperature and the preset temperature, and the preferential adjustment of the temperature control compartment is realized, reducing the risk of food spoilage.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 14, fig. 14 is a schematic view of an embodiment of a refinement procedure of step S1020 in fig. 10, where step S1020 includes, but is not limited to:

and S1400, controlling the turntable to rotate clockwise or anticlockwise according to the distance parameter, wherein the distance parameter is the distance value between the communication port and the air return port of the temperature control chamber needing temperature control.

The turntable is provided with a communication port, in the process of controlling the communication port of the turntable to rotate according to the temperature control request, the return air inlet of the temperature control chamber corresponding to the non-temperature control request on the rotating path can be communicated passively, the communication time of the communication port and the return air inlet is short, and after the return air inlet is communicated passively for many times, part of air in the temperature control chamber can be conveyed out through the return air inlet, so that the temperature of the temperature control chamber corresponding to the passively communicated return air inlet is influenced. In order to solve the problems, the rotation path of the turntable can be confirmed according to the distance parameter, namely, the rotation path with a smaller distance value between the communication port and the air return opening of the temperature control chamber needing temperature control is selected, the turntable is controlled to rotate clockwise or anticlockwise according to the selected rotation path, so that when the communication port rotates towards the air opening of the temperature control chamber corresponding to the temperature control request, the number of the air return openings of the temperature control chamber corresponding to the non-temperature control request is as small as possible, and the influence degree on the temperature in the temperature control chambers of other non-temperature control requests is reduced.

Another embodiment of the present application further provides a return air temperature control method, as shown in fig. 15, fig. 15 is a schematic view of an embodiment of a refinement procedure of step S1020 in fig. 10, where step S1020 includes, but is not limited to:

and S1500, adjusting the rotation angle of the turntable to adjust the communication area of the communication port to the return air inlet.

In the process that the communication port is communicated with the air return port, the driving device can adjust the rotating angle of the rotary disc according to the temperature control request to adjust the communication area of the communication port to the air return port, and the flow speed of the air in the temperature control chamber can be adjusted by reducing or increasing the communication area of the communication port and the air return port, so that the temperature change speed of the temperature control chamber is adjusted, and the temperature of the temperature control chamber can be accurately controlled.

Referring to fig. 16, fig. 16 is a schematic view of an operation control apparatus of a refrigerator according to an embodiment of the present invention. The operation control device according to the embodiment of the present invention is built in the refrigerator, and includes one or more control processors 210 and a memory 220, and fig. 16 illustrates one control processor 210 and one memory 220 as an example.

The control processor 210 and the memory 220 may be connected by a bus or other means, and the bus connection is exemplified in fig. 16.

The memory 220, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory 220 may include high speed random access memory 220, and may also include non-transitory memory 220, such as at least one piece of disk memory 220, flash memory device, or other non-transitory solid state memory 220. In some embodiments, the memory 220 may optionally include memory 220 remotely located from the control processor 210, and these remote memories 220 may be connected to the operation control device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Those skilled in the art will appreciate that the arrangement of the devices illustrated in fig. 16 is not intended to be limiting of the operational control devices, and may include more or fewer components than those illustrated, or some components may be combined, or a different arrangement of components.

The non-transitory software programs and instructions required to implement the return air temperature control method applied to the operation control device in the above embodiment are stored in the memory 220, and when being executed by the control processor 210, the return air temperature control method applied to the operation control device in the above embodiment is executed, for example, the method steps S910 to S920 in fig. 9, the method steps S1010 to S1020 in fig. 10, the method step S1100 in fig. 11, the method step S1200 in fig. 12, the method steps S1300 in fig. 13, the method step S1400 in fig. 14, and the method step S1500 in fig. 15 described above are executed.

Since the refrigerator in this embodiment has the operation control device in any of the above embodiments, the refrigerator in this embodiment has the hardware structure of the operation control device in the above embodiments, and the control processor 210 in the operation control device can call the control program of the refrigerator stored in the memory 220 to control the return air temperature control mechanism.

The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.

Referring to fig. 17, fig. 17 is a refrigerator according to an embodiment of the present invention, which includes an operation control device 1720 according to the above-mentioned embodiment and a return air temperature control mechanism 1710 according to the above-mentioned embodiment.

Can acquire the first control by temperature change request that is used for controlling the temperature of control by temperature change room through operation control device, can control drive arrangement control carousel according to first control by temperature change and rotate, make intercommunication mouth and the return air inlet of the control by temperature change room that corresponds with the control by temperature change request intercommunication, let form the passageway of circulation of air between the supply-air outlet and the return air inlet of the control by temperature change room that corresponds to the realization is to the regulation of control by temperature change room temperature. According to the embodiment of the invention, the opening and closing of the return air inlets of the temperature control rooms are controlled by using the rotary table, and the air pressure of the refrigerating fan in the evaporator air duct arranged behind the evaporator along the air supply direction is utilized, so that the temperature control of the temperature control rooms can be met, the occupied space is effectively reduced, the cost is reduced, and the temperature control efficiency of the temperature control rooms can be improved.

It should be noted that the refrigerator may include the return air temperature control mechanism 1710 according to the above embodiment or the operation control device 1720 according to the above embodiment.

Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, which stores computer-executable instructions, which are executed by one or more control processors 210, for example, by one control processor 210 in fig. 16, and can cause the one or more control processors 210 to execute the return air temperature control method in the above-described method embodiment, for example, execute the above-described method steps S910 to S920 in fig. 9, method steps S1010 to S1020 in fig. 10, method step S1100 in fig. 11, method step S1200 in fig. 12, method steps S1300 in fig. 13, method step S1400 in fig. 14, and method step S1500 in fig. 15.

It will be understood by those of ordinary skill in the art that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory 220 technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. The utility model provides a return air temperature control mechanism, is applied to the refrigerator, return air temperature control mechanism includes evaporimeter, evaporimeter wind channel and is used for doing the refrigeration fan of the refrigeration room air supply of refrigerator, the refrigeration fan the evaporimeter set up in the evaporimeter wind channel, evaporimeter along refrigeration fan air supply direction the place ahead the evaporimeter wind channel is first wind channel, the evaporimeter is along refrigeration fan air supply direction rear the evaporimeter wind channel is the second wind channel, a serial communication port, the refrigeration fan set up in the second wind channel, return air temperature control mechanism still includes:

the driving device is used for controlling the rotating disc to rotate;

2. A return air temperature control mechanism according to claim 1, wherein said refrigeration blower is disposed adjacent said return air inlet.

3. A return air temperature control mechanism according to claim 1, characterized in that: and the projection of the air return opening to the direction of the turntable is overlapped with the rotating path of the communication opening.

4. A return air temperature control mechanism according to claim 1, characterized in that: the number of the communication ports arranged on the turntable is one or more than two.

5. A return air temperature control mechanism according to any one of claims 1 to 4, characterized in that: the temperature control device comprises a first temperature control chamber and a second temperature control chamber, wherein the first temperature control chamber comprises a first air return opening, the second temperature control chamber comprises a second air return opening, the driving device controls a communication opening of the rotary disc to rotate from a first communication position to a second communication position according to a temperature control request, the first communication position corresponds to the first air return opening, and the second communication position corresponds to the second air return opening.

6. A return air temperature control mechanism according to claim 5, characterized in that: and the driving device controls the communication port of the turntable to be kept at the first communication position according to a temperature control request, and controls the communication port of the turntable to rotate from the first communication position to the second communication position after a first set condition is met.

7. The return air temperature control mechanism of claim 6, wherein: the first set condition includes at least one of:

the communication port of the dial is maintained at the first communication position for a first duration.

8. A return air temperature control mechanism according to any one of claims 1 to 4, characterized in that: the temperature control device comprises a first temperature control chamber, the first temperature control chamber comprises a first air return port, the driving device controls the communication port of the rotary disc to rotate from a first communication position to a first closing position according to a temperature control request, so that all the air return ports on the air return temperature control mechanism are closed, and the first communication position corresponds to the first air return port, or controls the communication port of the rotary disc to rotate from the first closing position to the first communication position according to the temperature control request.

9. A return air temperature control mechanism according to claim 1, characterized in that: the temperature control room comprises four temperature control rooms, a grid-shaped temperature control room array is formed by the temperature control rooms, the rotary table is arranged on one side of the temperature control room array and is a disc covering four air return openings of the temperature control rooms, and an air supply opening of the temperature control room is arranged on one side, corresponding to the rotary table, of the temperature control room array and is used for avoiding the coverage range of the disc.

10. The return air temperature control mechanism according to claim 1, wherein the cooling fan is disposed opposite to the evaporator in the air supply direction, and a water blocking device is disposed on the second air duct between the evaporator and the cooling fan.

11. The return air temperature control mechanism according to claim 10, wherein the water stop means is a water stop partition or a water pan.

12. The return air temperature control mechanism according to claim 1, wherein the refrigeration fan is arranged in the second air duct in a staggered manner with the evaporator along the air supply direction of the refrigeration fan.

13. A return air temperature control mechanism according to claim 1, characterized in that: the driving device controls the rotation position of the turntable according to the priority of the temperature control request.

14. A return air temperature control mechanism according to claim 13, wherein: the priority of the temperature control request includes one of:

and assigning the temperature control request corresponding to the temperature control room with the higher priority level as the priority.

15. The utility model provides a return air temperature control method, is applied to the refrigerator that is provided with return air temperature control mechanism, return air temperature control mechanism includes evaporimeter, evaporimeter wind channel and is used for doing the refrigeration fan of the refrigeration room air supply of refrigerator, the refrigeration fan the evaporimeter set up in the evaporimeter wind channel, evaporimeter along refrigeration fan air supply direction the place ahead the evaporimeter wind channel is first wind channel, the evaporimeter is along refrigeration fan air supply direction rear the evaporimeter wind channel is the second wind channel, its characterized in that, the refrigeration fan set up in the second wind channel, return air temperature control mechanism still includes:

the turntable comprises a communication port which can correspond to the air return port;

the driving device is used for controlling the rotation of the turntable; the air supply outlet is communicated with the first air channel, and the air return inlet can be communicated with the second air channel through the communication port;

the return air temperature control method comprises the following steps:

16. The return air temperature control method according to claim 15, wherein the controlling the driving device to drive the turntable to rotate according to the temperature control request to control the communication state of the return air inlet of the temperature control compartment corresponding to the temperature control request includes at least one of:

17. The return air temperature control method according to claim 16, wherein the first set condition includes at least one of:

18. A return air temperature control method according to claim 15, wherein the acquiring of the first temperature control request for controlling the temperature of the temperature-controlled compartment includes:

acquiring more than two temperature control requests;

judging the priority of the more than two temperature control requests, and determining the temperature control request with the highest priority as a first temperature control request.

19. The return air temperature control method according to claim 18, wherein the temperature control request with the highest priority level is determined as the first temperature control request, and the method comprises one of the following steps:

appointing a temperature control request corresponding to a temperature control room with a high priority level as a first temperature control request;

and the temperature control request corresponding to the temperature control chamber with the temperature difference value larger than the threshold value is the first temperature control request.

20. The return air temperature control method according to claim 15, wherein the controlling the driving device to drive the turntable to rotate comprises:

controlling the turntable to rotate clockwise or anticlockwise according to a distance parameter, wherein the distance parameter is a distance value between the communication port and the air return port of the temperature control compartment needing temperature control;

and adjusting the rotation angle of the turntable to adjust the communication area of the communication port to the air return port.

21. An operation control device comprising at least one control processor and a memory for communicative connection with the at least one control processor; the memory stores instructions executable by the at least one control processor to enable the at least one control processor to perform a return air temperature control method as claimed in any one of claims 15 to 20.

22. A refrigerator comprising an operation control device as claimed in claim 21 or a return air temperature control mechanism as claimed in any one of claims 1 to 14.

23. A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform the return air temperature control method of any one of claims 15 to 20.