CN214537000U - Refrigerator with a door - Google Patents

Abstract

The utility model provides a refrigerator, it includes the alternating temperature room, first storing room and second storing room, a first evaporimeter for supplying cold volume to first storing room, a second evaporimeter for supplying cold volume to second storing room, a first alternating temperature air supply duct provided with a first alternating temperature air door and a second alternating temperature air supply duct provided with a second alternating temperature air door, the alternating temperature room is set to the first refrigeration mode and when needing to refrigerate, the first alternating temperature air door, a first blower are controlled to be opened, so that the air current cooled by the first evaporimeter enters the alternating temperature room through the first alternating temperature air supply duct; when the temperature-changing chamber is set to be in the second refrigeration mode and needs refrigeration, the second temperature-changing air door and the second blower are controlled to be opened, so that the airflow cooled by the second evaporator enters the temperature-changing chamber through the second temperature-changing air supply duct. Therefore, the proper evaporator can be selected for refrigerating and air supplying according to the set temperature interval of the variable-temperature chamber, and the refrigerating efficiency is improved while the proper temperature is kept.

Description

Refrigerator with a door

Technical Field

The utility model relates to a cold-stored freezing technical field especially relates to a refrigerator.

Background

In order to meet different storage temperature requirements of users for food materials, refrigerators are generally designed to include multiple temperature zones, such as a refrigeration zone and a freezing zone, where each temperature zone corresponds to an independent evaporator and capillary tube to achieve different refrigeration temperatures.

However, for the temperature-variable chamber, no matter a separate evaporator is provided for the temperature-variable chamber or an evaporator in other temperature regions is utilized to provide cooling capacity for the temperature-variable chamber, once the evaporator is determined, the evaporation temperature is fixed, so that the temperature regulation range of the temperature-variable chamber is limited, and the diversified requirements of users cannot be met; if the temperature adjustment range of the temperature-changing chamber is increased, the efficiency of the refrigeration system is reduced, which is not beneficial to energy saving.

Disclosure of Invention

An object of the utility model is to provide a solve the refrigerator of above-mentioned problem at least.

A further object of the present invention is to provide for lower temperature refrigeration of the variable temperature compartment.

Particularly, the utility model provides a refrigerator, it includes:

the refrigerator comprises a refrigerator body, a temperature changing chamber, a first storage chamber and a second storage chamber are limited in the refrigerator body, the first storage chamber is provided with a first refrigeration mode, the second storage chamber is provided with a second refrigeration mode, the temperature value in the second refrigeration mode is smaller than that in the first refrigeration mode, and the temperature changing chamber is provided with a first refrigeration mode and a second refrigeration mode;

the first evaporator chamber, a first evaporator and a first blower are arranged in the first evaporator chamber, and the first evaporator is configured to provide cold energy to the first storage chamber so that the temperature of the first storage chamber reaches the temperature of the first refrigeration mode;

the second evaporator chamber, a second evaporator and a second air blower are arranged in the second evaporator chamber, and the second evaporator is configured to provide cold energy to the second storage chamber, so that the temperature of the second storage chamber reaches the temperature of the second refrigeration mode;

when the temperature-changing chamber is set to be in the first refrigeration mode and needs refrigeration, the first temperature-changing air door is controlled to be opened, the first blower is controlled to be opened, and at least part of air flow cooled by the first evaporator is enabled to enter the temperature-changing chamber through the first temperature-changing air supply duct;

when the temperature-changing chamber is set to the second refrigeration mode and needs refrigeration, the second temperature-changing air door is controlled to be opened, the second blower is controlled to be opened, and at least part of air flow cooled by the second evaporator is promoted to enter the temperature-changing chamber through the second temperature-changing air supply duct.

Optionally, the refrigerator further comprises:

the electromagnetic valve is provided with an inlet end communicated with the outlet end of the compressor, a first outlet end connected with the inlet end of the first capillary tube and a second outlet end connected with the inlet end of the second capillary tube; the flow rate of the first capillary is greater than that of the second capillary;

the inlet end of the first evaporator is communicated with the outlet end of the first capillary tube, the inlet end of the second evaporator is communicated with the outlet end of the second capillary tube, and the outlet end of the first evaporator and the outlet end of the second evaporator are respectively communicated with the inlet end of the compressor;

when the temperature-changing chamber is set to be in the first refrigeration mode and needs refrigeration and/or the first storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the first outlet end and the inlet end of the first capillary; when the temperature-changing chamber is set to the second refrigeration mode and needs refrigeration and/or the second storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the second outlet end and the inlet end of the second capillary tube.

Optionally, the refrigerator further comprises:

a first variable-temperature return air duct, an inlet end of which is communicated with the variable-temperature compartment through a first return air damper, an outlet end of which is communicated with the first evaporator chamber, and an outlet end of which is positioned at the upstream of the first evaporator on an airflow flow path, so that the return air of the variable-temperature compartment in the first refrigeration mode flows through the first evaporator and is cooled by the first evaporator;

and the inlet end of the second variable-temperature return air duct is communicated with the variable-temperature compartment through a second return air damper, the outlet end of the second variable-temperature return air duct is communicated with the second evaporator chamber, and the outlet end of the second variable-temperature return air duct is positioned at the upstream of the second evaporator on the airflow flow path, so that the return air in the variable-temperature compartment in the second refrigeration mode flows through the second evaporator and is cooled by the second evaporator.

Optionally, the refrigerator further comprises:

a first storage air supply duct which communicates the first evaporator chamber with the first storage compartment through a first storage air door, wherein when the first storage compartment needs to be refrigerated, the first storage air door is controlled to be opened, the first air blower is controlled to be opened, and the first storage air supply duct is configured to enable at least part of air flow cooled by the first evaporator to enter the first storage compartment through the first storage air supply duct;

second storing air supply wind channel, it will through second storing air door the second evaporimeter room with second storing compartment intercommunication, work as when the second storing compartment needs refrigeration, the second storing air door is controlled to be opened, the second forced draught blower is controlled to be opened to the configuration is by the refrigerated at least partial air current of second evaporimeter is through the second storing air supply wind channel gets into the second storing compartment.

Optionally, the first evaporator chamber and the first storage air supply duct are both located behind the first storage compartment, and the second evaporator chamber and the second storage air supply duct are both located behind the second storage compartment;

the first variable-temperature air supply duct and the first variable-temperature air return duct both extend from the rear part of the first storage chamber to the rear part of the variable-temperature chamber, and the second variable-temperature air supply duct and the second variable-temperature air return duct both extend from the rear part of the second storage chamber to the rear part of the variable-temperature chamber.

Optionally, a third storage chamber is further defined in the box body, the third storage chamber has a third refrigeration mode, a temperature value in the third refrigeration mode is smaller than a temperature value in the second refrigeration mode, and the temperature-changing chamber also has a third refrigeration mode;

the refrigerator also comprises a third evaporator chamber, a third evaporator and a third air blower, wherein the third evaporator is positioned in the third evaporator chamber and is configured to provide cold energy to the third storage chamber, so that the temperature of the third storage chamber reaches the temperature of the third refrigeration mode;

and a third variable temperature air supply duct which communicates the third evaporator chamber with the variable temperature chamber through a third variable temperature air door, wherein when the variable temperature chamber is set to the third refrigeration mode and needs refrigeration, the third variable temperature air door is controlled to be opened, the third blower is controlled to be opened, and at least part of air flow cooled by the third evaporator is promoted to enter the variable temperature chamber through the third variable temperature air supply duct.

Optionally, the refrigerator further comprises a third capillary tube, the solenoid valve further has a third outlet connected to an inlet of the third capillary tube, and a flow rate of the third capillary tube is smaller than a flow rate of the second capillary tube;

the inlet end of the third evaporator is communicated with the outlet end of the third capillary tube, and the outlet end of the third evaporator is communicated with the inlet end of the compressor;

when the temperature-changing chamber is set to the third refrigeration mode and needs refrigeration and/or the third storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the third outlet end and the inlet end of the third capillary tube.

Optionally, the refrigerator further comprises:

a third variable-temperature return air duct, an inlet end of which is communicated with the variable-temperature compartment through a third return air damper, an outlet end of which is communicated with the third evaporator chamber, and an outlet end of which is located upstream of the third evaporator on an airflow flow path, so that the return air of the variable-temperature compartment in the third refrigeration mode flows through the third evaporator and is cooled by the third evaporator;

and a third storage air supply air duct which is communicated with the third evaporator chamber and the third storage chamber through a third storage air door, wherein when the third storage chamber needs to be refrigerated, the third storage air door is controlled to be opened, the third air blower is controlled to be opened, and the third air blower is configured to enable at least part of air flow cooled by the third evaporator to enter the third storage chamber through the third storage air supply air duct.

Optionally, the third evaporator chamber and the third storage air supply duct are both located behind the third storage compartment;

and the third variable-temperature air supply duct and the third variable-temperature air return duct both extend from the rear part of the third storage compartment to the rear part of the variable-temperature compartment.

Optionally, the first storage chamber is a refrigerating chamber, the first refrigeration mode is a refrigeration mode, the second storage chamber is a freezing chamber, the second refrigeration mode is a freezing mode, the third storage chamber is a deep-cooling chamber, and the third refrigeration mode is a deep-cooling mode;

the temperature-changing chamber and the third storage chamber are distributed along the transverse direction, the first storage chamber is positioned above the temperature-changing chamber and the third storage chamber, and the second storage chamber is positioned below the temperature-changing chamber and the third storage chamber.

The utility model discloses a refrigerator, according to the different refrigeration mode of alternating temperature compartment, utilize the evaporimeter that corresponds with corresponding refrigeration mode to alternating temperature compartment supply cold volume, thereby for alternating temperature compartment provides different evaporating temperature, when guaranteeing that alternating temperature compartment has the temperature control scope of broad, refrigerating system's efficiency has been improved, and can be with the air supply temperature control of alternating temperature compartment in suitable temperature range, avoid when alternating temperature compartment is set for higher temperature, the air supply temperature who leads to alternating temperature compartment crosses low and freezes bad edible material because of evaporimeter evaporating temperature.

Further, the utility model discloses a mode switch can be carried out between cold-stored, freezing, cryrogenic in refrigerator, alternating temperature compartment, satisfies user's diversified demand.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural view of a refrigerator according to an embodiment of the present invention;

fig. 2 is a schematic connection diagram of a refrigeration system of a refrigerator according to an embodiment of the present invention.

Detailed Description

For convenience of description, the directions of "up", "down", "front", "back", "top", "bottom", "lateral" and the like referred to in the specification are all defined according to the spatial position relationship in the normal operation state of the refrigerator.

Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention, and fig. 2 is a schematic connection diagram of a refrigeration system of the refrigerator according to an embodiment of the present invention.

The refrigerator generally includes a refrigerator body, in the refrigerator of this embodiment, a temperature-changing chamber 13, a first storage chamber 11 and a second storage chamber 12 are defined in the refrigerator body, the first storage chamber 11 has a first refrigeration mode, the second storage chamber 12 has a second refrigeration mode, a temperature value in the second refrigeration mode is smaller than a temperature value in the first refrigeration mode, and the temperature-changing chamber 13 has the first refrigeration mode and the second refrigeration mode, that is, a temperature adjustment range of the temperature-changing chamber 13 may be the same as a temperature adjustment range of the first storage chamber 11, or may be the same as a temperature adjustment range of the second storage chamber 12.

In order to supply cold to the first and second storage compartments 11, 12, the refrigerator of the present embodiment is equipped with a first evaporator chamber, a first evaporator 15 in the first evaporator chamber, a first blower 101 and a second evaporator chamber, a second evaporator 16 in the second evaporator chamber and a second blower 102, the first evaporator 15 being configured to supply cold to the first storage compartment 11 so that the temperature of the first storage compartment 11 reaches the temperature of the first cooling mode; the second evaporator 16 is configured to provide cold energy to the second storage compartment 12, so that the temperature of the second storage compartment 12 reaches the temperature of the second refrigeration mode, and both the first evaporator 15 and the second evaporator 16 can provide cold energy to the first storage compartment 11 and the second storage compartment 12 in a direct cooling or air cooling mode.

In order to realize the switching between the first refrigeration mode and the second refrigeration mode of the variable temperature compartment 13, the refrigerator of the embodiment is further provided with a first variable temperature damper 104, a second variable temperature damper 106, a first variable temperature air supply duct 110 for communicating the first evaporator chamber with the variable temperature compartment 13 through the first variable temperature damper 104, and a second variable temperature air supply duct 130 for communicating the second evaporator chamber with the variable temperature compartment 13 through the second variable temperature damper 106, when the variable temperature compartment 13 is set to be in the first refrigeration mode and needs to be refrigerated, the first variable temperature damper 104 is controlled to be opened, the first blower 101 is controlled to be opened, and at least part of air flow cooled by the first evaporator 15 is prompted to enter the variable temperature compartment 13 through the first variable temperature air supply duct 110; when the temperature-varying compartment 13 is set to the second cooling mode and cooling is required, the second temperature-varying damper 106 is controlled to be opened, the second blower 102 is controlled to be opened, and at least a portion of the air cooled by the second evaporator 16 is caused to flow through the second temperature-varying air supply duct 130 into the temperature-varying compartment 13. That is, the temperature-changing compartment 13 has different evaporators corresponding to different refrigeration modes, and the evaporator corresponding to the refrigeration mode of the temperature-changing compartment 13 is selected to supply cooling capacity to the temperature-changing compartment 13, so as to improve the efficiency of the refrigeration system.

As described above, according to different refrigeration modes of the temperature-varying chamber 13, the refrigerator of the present embodiment utilizes the evaporator corresponding to the corresponding refrigeration mode to supply cold energy to the temperature-varying chamber 13, so as to provide different evaporation temperatures for the temperature-varying chamber 13, ensure that the temperature-varying chamber 13 has a wider temperature adjustment range, improve the efficiency of the refrigeration system, and control the air supply temperature of the temperature-varying chamber 13 within a proper temperature range, thereby avoiding that when the temperature-varying chamber 13 is set to a higher temperature, the air supply temperature of the temperature-varying chamber 13 is too low to freeze the food material due to too low evaporation temperature of the evaporator.

In the process of a compression refrigeration cycle, the evaporation temperature of an evaporator can be realized through the throttling action of a capillary tube, in the embodiment, a refrigerator is provided with a first capillary tube 21, a second capillary tube 22 and an electromagnetic valve 18, the electromagnetic valve 18 is provided with an inlet end communicated with the outlet end of a compressor 19, a first outlet end connected with the inlet end of the first capillary tube 21 and a second outlet end connected with the inlet end of the second capillary tube 22; the inlet end of the first evaporator 15 is communicated with the outlet end of the first capillary tube 21, the inlet end of the second evaporator 16 is communicated with the outlet end of the second capillary tube 22, and the outlet end of the first evaporator 15 and the outlet end of the second evaporator 16 are respectively communicated with the inlet end of the compressor 19. The flow rate of the first capillary tube 21 is greater than that of the second capillary tube 22, the flow rate of the second capillary tube 22 is smaller, the throttling effect is stronger, the temperature of the second evaporator 16 is lower, and the temperature requirement of the second refrigeration mode can be met.

When the temperature-changing chamber 13 is set to the first refrigeration mode and needs to be refrigerated and/or the first storage chamber 11 needs to be refrigerated, the electromagnetic valve 18 is configured to controllably communicate the first outlet end with the inlet end of the first capillary 21; when the temperature-changing chamber 13 is set to the second cooling mode and cooling is required and/or cooling is required for the second storage chamber 12, the solenoid valve 18 is configured to controllably communicate the second outlet with the inlet of the second capillary tube 22. Therefore, different capillaries can be switched according to different refrigeration modes of the temperature-changing chamber 13, and the efficiency of the refrigeration system is improved.

As well known to those skilled in the art, as shown in fig. 2, the refrigeration system of the refrigerator may further include a condenser 20 between an inlet of the solenoid valve 18 and an outlet of the compressor 19, in addition to the aforementioned compressor 19, the solenoid valve 18, the first capillary tube 21, and the second capillary tube 22, and the outlet of the first evaporator 15 may be connected to the inlet of the compressor 19 through the second evaporator 16.

In order to form the air circulation between the first evaporator compartment and the temperature-changing compartment 13 and between the second evaporator compartment and the temperature-changing compartment 13, the refrigerator of the present embodiment further includes a first temperature-changing return air duct 120 and a second temperature-changing return air duct 140, an inlet end of the first temperature-changing return air duct 120 communicates with the temperature-changing compartment 13 through a first return air damper (not shown), an outlet end thereof communicates with the first evaporator 15 compartment, and an outlet end thereof is located upstream of the first evaporator 15 in the air flow path, so that the return air of the temperature-changing compartment 13 in the first cooling mode flows through the first evaporator 15 and is cooled by the first evaporator 15. When the temperature-changing compartment 13 is set to the first cooling mode, both the first temperature-changing damper 104 and the first return damper are opened to form an airflow circulation between the temperature-changing compartment 13 and the first evaporator chamber.

The second temperature-varying return air duct 140 has an inlet end communicating with the temperature-varying compartment 13 through a second return air damper (not shown), an outlet end communicating with the second evaporator compartment, and an outlet end located upstream of the second evaporator 16 in the airflow flow path, so that the return air of the temperature-varying compartment 13 in the second cooling mode flows through the second evaporator 16 to be cooled by the second evaporator 16. When the temperature-changing compartment 13 is set to the second cooling mode, both the second temperature-changing damper 106 and the second return air damper are opened to form an air flow circulation between the temperature-changing compartment 13 and the second evaporator compartment. In this way, the first evaporator 15 or the second evaporator 16 can be used to continuously provide cooling energy to the temperature changing chamber 13, so that the temperature changing chamber 13 reaches the set temperature value.

In the embodiment shown in the drawings, the first evaporator 15 and the second evaporator 16 respectively supply cold energy to the first storage compartment 11 and the second storage compartment 12 in an air cooling mode, specifically, as shown in fig. 1, the refrigerator further includes a first storage air supply duct 170 and a second storage air supply duct (not numbered), the first storage air supply duct 170 communicates the first evaporator chamber with the first storage compartment 11 through a first storage damper 105, when the first storage compartment 11 needs to be refrigerated, the first storage damper 105 is controlled to be opened, the first blower 101 is controlled to be opened, and the first storage air supply duct is configured to promote at least part of air flow cooled by the first evaporator 15 to enter the first storage compartment 11 through the first storage air supply duct 170; the second storage supply air duct communicates the second evaporator chamber with the second storage compartment 12 via a second storage damper 107, and when the second storage compartment 12 requires cooling, the second storage damper 107 is controlled to open and the second air blower 102 is controlled to open and configured to cause at least a portion of the air cooled by the second evaporator 16 to flow through the second storage supply air duct into the second storage compartment 12. Therefore, under the drive of the same blower, the cooling capacity around the same evaporator is respectively conveyed to the variable-temperature chamber 13 and the corresponding storage chamber, and the independence of the air supply of the corresponding storage chamber and the variable-temperature chamber 13 is ensured by additionally arranging the corresponding storage air door.

In the embodiment shown in the drawings, the first evaporator chamber and the first storage air supply duct 170 are both positioned behind the first storage compartment 11, the second evaporator chamber and the second storage air supply duct are both positioned behind the second storage compartment 12, the upper section of the rear wall of the first storage compartment 11 may be formed with a first storage air supply outlet 111 communicating with the outlet end of the first storage air supply duct 170, and the lower section of the rear wall of the first storage compartment 11 may be formed with a first storage air return outlet (not shown) communicating with the first evaporator chamber and positioned below the first evaporator 15; the upper section of the rear wall of the second storage compartment 12 may be formed with a second storage supply air outlet 121 communicating with the outlet end of the second storage supply air duct, and the lower section of the rear wall of the second storage compartment 12 is formed with a second storage return air inlet (not shown) communicating with the second evaporator chamber and located below the second evaporator 16, so as to ensure that the air flow entering the first storage compartment 11 and the second storage compartment 12 can flow through the whole space from top to bottom, so that the temperatures of the first storage compartment 11 and the second storage compartment 12 are more uniform

The first variable-temperature air supply duct 110 and the first variable-temperature air return duct 120 both extend from the rear of the first storage compartment 11 to the rear of the variable-temperature compartment 13, a variable-temperature air supply outlet 131 communicated with the outlet end of the first variable-temperature air supply duct 110 can be formed in the upper section of the rear wall of the variable-temperature compartment 13, and a first variable-temperature air return outlet 133 communicated with the inlet end of the first variable-temperature air return duct 120 can be formed in the lower section of the rear wall of the variable-temperature compartment 13; the second variable-temperature air supply duct 130 and the second variable-temperature air return duct 140 both extend from the rear of the second storage compartment 12 to the rear of the variable-temperature compartment 13, and accordingly, the outlet end of the second variable-temperature air supply duct 130 may be communicated with the variable-temperature air supply outlet 131, and the lower section of the rear wall of the variable-temperature compartment 13 may be formed with a second variable-temperature air return outlet 132 communicated with the inlet end of the second variable-temperature air return duct 140.

In the embodiment, the evaporator chamber, the air supply duct and the air return duct are uniformly distributed behind the corresponding chambers, so that the rear space of the chambers is fully utilized, the structure is more compact, and the space occupation is reduced.

The first storage compartment 11 can be a refrigerating compartment, the second storage compartment 12 can be a freezing compartment, correspondingly, the first refrigeration mode is a refrigerating mode, the second refrigeration mode is a freezing mode, the first storage compartment 11, the variable-temperature compartment 13 and the second storage compartment 12 can be sequentially distributed from top to bottom, so that arrangement of each air supply duct and each air return duct is facilitated, conversion of the variable-temperature compartment 13 between the refrigerating mode and the freezing mode is achieved, and the problems that in the prior art, due to the fact that the refrigerating evaporator is used for providing cold for the variable-temperature compartment 13 in both the refrigerating mode and the freezing mode, the air supply temperature of the variable-temperature compartment 13 is low, and food materials are easily frozen are solved.

Further, the refrigerator of the present embodiment further provides a third cooling mode with a temperature lower than that in the second cooling mode, specifically, a third storage compartment 14 is further defined in the refrigerator body, and the third storage compartment 14 and the temperature-changing compartment 13 both have the third cooling mode. The refrigerator further comprises a third evaporator chamber, a third evaporator 17 and a third blower 103, wherein the third evaporator 17 is arranged to provide cold energy to the third storage chamber 14 so that the temperature of the third storage chamber 14 reaches the temperature of the third refrigeration mode, the third variable temperature blower 150 is communicated with the variable temperature chamber 13 through a third variable temperature damper (not numbered), when the variable temperature chamber 13 is set to the third refrigeration mode and refrigeration is needed, the third variable temperature damper is controlled to be opened, the third blower 103 is controlled to be opened, and at least part of air flow cooled by the third evaporator 17 is caused to enter the variable temperature chamber 13 through the third variable temperature blower 150. This provides a lower temperature refrigeration mode for the variable temperature compartment 13, enabling a wider range of temperature regulation of the variable temperature compartment 13.

Further, the refrigerator further comprises a third capillary tube 23, the electromagnetic valve 18 further comprises a third outlet end connected with the inlet end of the third capillary tube 23, the inlet end of the third evaporator 17 is communicated with the outlet end of the third capillary tube 23, the outlet end of the third evaporator 17 is communicated with the inlet end of the compressor 19, the flow rate of the third capillary tube 23 is smaller than that of the second capillary tube 22, a stronger throttling effect is achieved, the temperature of the third evaporator 17 is lower, and the temperature requirement of the third refrigeration mode can be met. When the temperature-changing chamber 13 is set to the third cooling mode and cooling is required and/or when cooling is required in the third storage chamber 14, the solenoid valve 18 is configured to controllably communicate the third outlet and the inlet of the third capillary 23. Therefore, different capillaries can be switched according to different refrigeration modes of the temperature-changing chamber 13, so that the adjustment of a wider temperature range of the temperature-changing chamber 13 is realized, and the efficiency of a refrigeration system is improved.

To circulate the air flow between the third evaporator compartment and the temperature-changing compartment 13, the refrigerator of the present embodiment may further include a third temperature-changing return air duct 160 having an inlet end communicating with the temperature-changing compartment 13 through a third return air damper (not shown), an outlet end communicating with the third evaporator compartment, and an outlet end located upstream of the third evaporator 17 in the air flow path, so that the return air of the temperature-changing compartment 13 in the third cooling mode flows through the third evaporator 17 to be cooled by the third evaporator 17. When the temperature-changing compartment 13 is set to the third cooling mode, the third temperature-changing damper and the third return air damper are both opened to form an air flow circulation between the temperature-changing compartment 13 and the third evaporator compartment.

The third storage compartment 14 is air-cooled by a third storage air supply duct (not numbered), which communicates the third evaporator chamber with the third storage compartment 14 through a third storage air door (not numbered), and when the third storage compartment 14 needs to be cooled, the third storage air door is controlled to be opened, the third blower 103 is controlled to be opened, and the third storage air supply duct is configured to cause at least part of the air flow cooled by the third evaporator 17 to enter the third storage compartment 14 through the third storage air supply duct.

The third evaporator chamber and the third storage air supply duct are both located behind the third storage chamber 14, a third storage air supply opening 141 is formed in an upper section of the rear wall of the third storage chamber 14, an outlet end of the third storage air supply duct is communicated with the third storage air supply opening 141, a third storage air return opening (not shown) which is communicated with the third evaporator chamber and is located below the third evaporator 17 is formed in a lower section of the rear wall of the third storage chamber 14, and return air entering the third storage chamber 14 flows through the whole space and then returns to the third evaporator chamber, so that the temperature of the third storage chamber 14 is more uniform.

The third variable-temperature air supply duct 150 and the third variable-temperature air return duct 160 may both extend from the rear of the third storage compartment 14 to the rear of the variable-temperature compartment 13, the third variable-temperature air supply duct 150 may be communicated with the variable-temperature compartment 13 through the variable-temperature air supply outlet 131, and a third variable-temperature air return opening 134 communicated with the third variable-temperature air return duct 160 is further formed at a lower section of the rear wall of the variable-temperature compartment 13.

In one embodiment, a connection duct (not shown) protruding backward from the variable temperature air supply outlet 131 may be formed on the rear wall of the variable temperature compartment 13, and three openings connected to the first variable temperature air supply duct 110, the second variable temperature air supply duct 130, and the third variable temperature air supply duct 150 are respectively formed in the connection duct to communicate each variable temperature air supply duct with the variable temperature air supply outlet 131. In an alternative embodiment, the rear wall of the variable temperature compartment 13 may be formed with three openings to communicate with the first variable temperature air supply duct 110, the second variable temperature air supply duct 130, and the third variable temperature air supply duct 150, respectively.

The third storage compartment 14 may be a cryogenic compartment and correspondingly the third cooling mode is a cryogenic mode, in the embodiment shown in the figures, the temperature-changing compartment 13 and the third storage compartment 14 are distributed in the transverse direction, the first storage compartment 11 is located above the temperature-changing compartment 13 and the third storage compartment 14, and the second storage compartment 12 is located below the temperature-changing compartment 13 and the third storage compartment 14. The arrangement of the air supply channels and the air return channels is convenient, the interference among the channels is avoided, the rear space of each chamber is fully utilized, and the volume of each chamber is ensured.

The temperature adjusting range of the deep cooling mode may be-30 to-40 ℃, the temperature adjusting range of the freezing mode may be-15 to-24 ℃, the temperature adjusting range of the cold storage mode may be 1 to 9 ℃, and the foregoing temperature adjusting ranges are only examples and are not particularly limited by the present invention.

As described above, the refrigerator of this embodiment can select a suitable evaporator to perform cooling and air supply according to the set temperature interval of the variable temperature compartment 13, and can ensure that the temperature of the variable temperature compartment 13 is suitable, so that the problem of freezing of food materials is avoided, and the efficiency of the refrigeration system is improved.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims (10)

1. A refrigerator, characterized by comprising:

the refrigerator comprises a refrigerator body, a temperature changing chamber, a first storage chamber and a second storage chamber are limited in the refrigerator body, the first storage chamber is provided with a first refrigeration mode, the second storage chamber is provided with a second refrigeration mode, the temperature value in the second refrigeration mode is smaller than that in the first refrigeration mode, and the temperature changing chamber is provided with a first refrigeration mode and a second refrigeration mode;

the first evaporator chamber, a first evaporator and a first blower are arranged in the first evaporator chamber, and the first evaporator is configured to provide cold energy to the first storage chamber so that the temperature of the first storage chamber reaches the temperature of the first refrigeration mode;

the second evaporator chamber, a second evaporator and a second air blower are arranged in the second evaporator chamber, and the second evaporator is configured to provide cold energy to the second storage chamber, so that the temperature of the second storage chamber reaches the temperature of the second refrigeration mode;

when the temperature-changing chamber is set to be in the first refrigeration mode and needs refrigeration, the first temperature-changing air door is controlled to be opened, the first blower is controlled to be opened, and at least part of air flow cooled by the first evaporator is enabled to enter the temperature-changing chamber through the first temperature-changing air supply duct;

when the temperature-changing chamber is set to the second refrigeration mode and needs refrigeration, the second temperature-changing air door is controlled to be opened, the second blower is controlled to be opened, and at least part of air flow cooled by the second evaporator is promoted to enter the temperature-changing chamber through the second temperature-changing air supply duct.

2. The refrigerator according to claim 1, further comprising:

the electromagnetic valve is provided with an inlet end communicated with the outlet end of the compressor, a first outlet end connected with the inlet end of the first capillary tube and a second outlet end connected with the inlet end of the second capillary tube; the flow rate of the first capillary is greater than that of the second capillary;

the inlet end of the first evaporator is communicated with the outlet end of the first capillary tube, the inlet end of the second evaporator is communicated with the outlet end of the second capillary tube, and the outlet end of the first evaporator and the outlet end of the second evaporator are respectively communicated with the inlet end of the compressor;

when the temperature-changing chamber is set to be in the first refrigeration mode and needs refrigeration and/or the first storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the first outlet end and the inlet end of the first capillary; when the temperature-changing chamber is set to the second refrigeration mode and needs refrigeration and/or the second storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the second outlet end and the inlet end of the second capillary tube.

3. The refrigerator according to claim 1, further comprising:

a first variable-temperature return air duct, an inlet end of which is communicated with the variable-temperature compartment through a first return air damper, an outlet end of which is communicated with the first evaporator chamber, and an outlet end of which is positioned at the upstream of the first evaporator on an airflow flow path, so that the return air of the variable-temperature compartment in the first refrigeration mode flows through the first evaporator and is cooled by the first evaporator;

and the inlet end of the second variable-temperature return air duct is communicated with the variable-temperature compartment through a second return air damper, the outlet end of the second variable-temperature return air duct is communicated with the second evaporator chamber, and the outlet end of the second variable-temperature return air duct is positioned at the upstream of the second evaporator on the airflow flow path, so that the return air in the variable-temperature compartment in the second refrigeration mode flows through the second evaporator and is cooled by the second evaporator.

4. The refrigerator of claim 3, further comprising:

a first storage air supply duct which communicates the first evaporator chamber with the first storage compartment through a first storage air door, wherein when the first storage compartment needs to be refrigerated, the first storage air door is controlled to be opened, the first air blower is controlled to be opened, and the first storage air supply duct is configured to enable at least part of air flow cooled by the first evaporator to enter the first storage compartment through the first storage air supply duct;

second storing air supply wind channel, it will through second storing air door the second evaporimeter room with second storing compartment intercommunication, work as when the second storing compartment needs refrigeration, the second storing air door is controlled to be opened, the second forced draught blower is controlled to be opened to the configuration is by the refrigerated at least partial air current of second evaporimeter is through the second storing air supply wind channel gets into the second storing compartment.

5. The refrigerator as claimed in claim 4, wherein the refrigerator further comprises a cover for covering the opening of the door

The first evaporator chamber and the first storage air supply duct are both positioned behind the first storage chamber, and the second evaporator chamber and the second storage air supply duct are both positioned behind the second storage chamber;

the first variable-temperature air supply duct and the first variable-temperature air return duct both extend from the rear part of the first storage chamber to the rear part of the variable-temperature chamber, and the second variable-temperature air supply duct and the second variable-temperature air return duct both extend from the rear part of the second storage chamber to the rear part of the variable-temperature chamber.

6. The refrigerator as claimed in claim 2, wherein the refrigerator further comprises a cover for covering the opening of the door

A third storage chamber is further defined in the box body, the third storage chamber has a third refrigeration mode, the temperature value in the third refrigeration mode is smaller than that in the second refrigeration mode, and the temperature change chamber also has a third refrigeration mode;

the refrigerator also comprises a third evaporator chamber, a third evaporator and a third air blower, wherein the third evaporator is positioned in the third evaporator chamber and is configured to provide cold energy to the third storage chamber, so that the temperature of the third storage chamber reaches the temperature of the third refrigeration mode;

and a third variable temperature air supply duct which communicates the third evaporator chamber with the variable temperature chamber through a third variable temperature air door, wherein when the variable temperature chamber is set to the third refrigeration mode and needs refrigeration, the third variable temperature air door is controlled to be opened, the third blower is controlled to be opened, and at least part of air flow cooled by the third evaporator is promoted to enter the variable temperature chamber through the third variable temperature air supply duct.

7. The refrigerator as claimed in claim 6, wherein the refrigerator further comprises a cover for covering the opening of the door

The refrigerator also comprises a third capillary tube, the electromagnetic valve is also provided with a third outlet end connected with the inlet end of the third capillary tube, and the flow rate of the third capillary tube is smaller than that of the second capillary tube;

the inlet end of the third evaporator is communicated with the outlet end of the third capillary tube, and the outlet end of the third evaporator is communicated with the inlet end of the compressor;

when the temperature-changing chamber is set to the third refrigeration mode and needs refrigeration and/or the third storage chamber needs refrigeration, the electromagnetic valve is configured to be controlled to conduct the third outlet end and the inlet end of the third capillary tube.

8. The refrigerator according to claim 6, further comprising:

a third variable-temperature return air duct, an inlet end of which is communicated with the variable-temperature compartment through a third return air damper, an outlet end of which is communicated with the third evaporator chamber, and an outlet end of which is located upstream of the third evaporator on an airflow flow path, so that the return air of the variable-temperature compartment in the third refrigeration mode flows through the third evaporator and is cooled by the third evaporator;

and a third storage air supply air duct which is communicated with the third evaporator chamber and the third storage chamber through a third storage air door, wherein when the third storage chamber needs to be refrigerated, the third storage air door is controlled to be opened, the third air blower is controlled to be opened, and the third air blower is configured to enable at least part of air flow cooled by the third evaporator to enter the third storage chamber through the third storage air supply air duct.

9. The refrigerator as claimed in claim 8, wherein the refrigerator further comprises a cover for covering the opening of the door

The third evaporator chamber and the third storage air supply duct are both positioned behind the third storage compartment;

and the third variable-temperature air supply duct and the third variable-temperature air return duct both extend from the rear part of the third storage compartment to the rear part of the variable-temperature compartment.

10. The refrigerator as claimed in claim 6, wherein the refrigerator further comprises a cover for covering the opening of the door

The first storage chamber is a refrigerating chamber, the first refrigeration mode is a refrigeration mode, the second storage chamber is a freezing chamber, the second refrigeration mode is a freezing mode, the third storage chamber is a deep-cooling chamber, and the third refrigeration mode is a deep-cooling mode;

the temperature-changing chamber and the third storage chamber are distributed along the transverse direction, the first storage chamber is positioned above the temperature-changing chamber and the third storage chamber, and the second storage chamber is positioned below the temperature-changing chamber and the third storage chamber.

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