WO2015062522A1

WO2015062522A1 - Refrigeration device

Info

Publication number: WO2015062522A1
Application number: PCT/CN2014/089916
Authority: WO
Inventors: 聂圣源; 刘建如; 吴淑娟
Original assignee: 海尔集团公司; 青岛海尔股份有限公司
Priority date: 2013-10-31
Filing date: 2014-10-30
Publication date: 2015-05-07
Also published as: CN104344666A

Abstract

A refrigeration device (100) comprising a master refrigeration circulation system and several storage compartments, said compartments including a multifunctional compartment (30). Arranged externally to the multifunctional compartment (30) are an evaporator (4) for providing cold to said compartment and a condenser (3) for providing thermal energy to said compartment. When the multifunctional compartment (30) is refrigerating, the evaporator (4) thereof and the master refrigeration circulation system are in operation, and the condenser (3) is shut down; when the multifunctional compartment (30) is heating, the condenser (3) thereof and the master refrigeration circulation system are in operation, and the evaporator (4) is shut down. When the multifunctional compartment (30) is heating, foodstuffs from the freezer compartment (20) can be placed in said multifunctional compartment (30) to thaw, thereby resolving such problems as length of natural thaw time or the inconvenience of using a microwave or other electrical device to thaw frozen foods, while also recovering some of the waste heat of the refrigeration circulation system and thereby conserving energy.

Description

Refrigerator

Technical field

The invention belongs to the technical field of household appliances, and in particular relates to a refrigeration device with a cooling and heating function.

Background technique

The existing domestic refrigeration device has only a single refrigeration function, and is mainly composed of a plurality of storage chambers and a refrigeration cycle system. A plurality of storage chambers thereof include a refrigerating chamber, a freezing chamber, and a greenhouse. The temperature of the refrigerator compartment is between 0-10 ° C, the temperature of the freezer compartment is between -18-0 ° C, and the temperature of the greenhouse is between -10 ° ° C. The refrigeration cycle system of the refrigeration unit mainly comprises a compressor, a condenser, an evaporator and a capillary, and is a self-contained closed circulation system. The refrigerant flows through the evaporator disposed in the refrigerating or freezing area, and is boiled and vaporized in the evaporator to absorb a large amount of heat to cool the refrigerator, and the compressor compresses the vaporized refrigerant into high temperature and high pressure steam by consuming electric energy. This high-temperature and high-pressure steam is passed through a condenser provided outside the refrigerator to dissipate the heat absorbed in the refrigerator to the air outside the refrigerator.

In the above-mentioned refrigerating device, the food taken out in the freezer needs to be thawed and then cooked. The food is thawed in the natural environment for too long, and it is troublesome to be thawed by means of an electric appliance such as a microwave oven; on the other hand, in the refrigeration process, the refrigeration cycle system is distributed. A large part of the heat causes a waste of energy.

Summary of the invention

In order to solve the above technical problems, an object of the present invention is to provide a refrigerating apparatus including a main refrigerating cycle system and a plurality of storage chambers, the plurality of storage chambers including a multi-function chamber, the exterior of which is provided with The multi-function chamber is provided with a cooling multi-function chamber evaporator and a heat-providing multi-function chamber condenser, respectively.

As a further improvement of the present invention, the multi-function chamber evaporator and the multi-function chamber condenser are alternatively operated.

As a further improvement of the present invention, the main refrigeration cycle system includes a main condenser and a main evaporator.

As a further improvement of the present invention, the main evaporator includes a refrigerating compartment evaporator and a freezing compartment evaporator.

As a further improvement of the present invention, the multi-function chamber condenser and the main condenser are connected in parallel by a first control unit, and the multi-function chamber evaporator is connected in parallel with the main evaporator through a second control unit.

As a further improvement of the present invention, the multi-function chamber condenser and the main condenser are connected in parallel by a first control unit, and the multi-chamber evaporator and the refrigerating chamber evaporator are connected in parallel by a second control unit.

As a further improvement of the present invention, the multi-function chamber evaporator is disposed on a rear wall of the multi-function chamber.

As a further improvement of the present invention, the multi-function chamber condenser is disposed on a peripheral wall of the multi-function chamber.

As a further improvement of the present invention, the first control unit turns off the multi-function chamber condenser when the multi-function chamber is refrigerated; and the second control unit turns the multi-function chamber evaporator on.

As a further improvement of the present invention, when the multi-function chamber is heating, the first control unit causes the multi-function chamber condenser to be turned on; and the second control unit turns off the multi-function chamber evaporator.

Compared with the prior art, the present invention provides a refrigeration device including a main refrigeration cycle system and a plurality of storage chambers, the plurality of storage chambers including a multi-function chamber, and the exterior of the multi-function chamber is separately provided The multi-purpose room provides a cold multi-function chamber evaporator and a multi-function chamber condenser that provides heat. When the multi-function room is cooled, the multi-function chamber evaporator works with the main refrigeration cycle system, and the multi-function room condenser does not work; when the multi-function room is heating, the multi-function room condenser works with the main refrigeration cycle system, The function room evaporator does not work. When the multifunctional chamber is heated, the food in the freezer compartment is placed in the multifunctional chamber for thawing, which not only solves the problem that the freezing time of the freezer food is long, and the thawing of other electrical appliances such as a microwave oven is troublesome, and at the same time, the refrigeration cycle is utilized. Part of the wasted heat in the system saves energy.

DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic view of a refrigeration apparatus of the present invention.

Fig. 2 is a schematic view showing the refrigeration cycle system of the refrigeration apparatus of the present invention.

Figure 3 is a schematic view showing the structure of the multi-function chamber condenser of Figure 1.

4 is a schematic structural view of the multi-chamber evaporator of FIG. 1.

detailed description

The invention will be described in detail below in conjunction with the specific embodiments shown in the drawings. However, the embodiments are not intended to limit the invention, and the structural, method, or functional changes made by those skilled in the art in accordance with the embodiments are included in the scope of the present invention.

Referring to Figure 1, the present invention discloses a refrigeration unit 100 that includes a plurality of storage chambers. In the illustrated embodiment of the present invention, the refrigerating apparatus 100 is a refrigerator having a cooling and heating function. The plurality of storage chambers include a refrigerating chamber 10, a freezing chamber 20, and a multi-function chamber 30, wherein the refrigerating chamber 10 and the freezing chamber 20 have a cooling function, and the multi-function chamber 30 has a cooling and heating function. In the illustrated embodiment of the present invention, the multi-function chamber 30 is located at an upper portion of the refrigerating device 100, the freezing chamber 20 is located at a lower portion of the refrigerating device 100, and the refrigerating chamber 10 is located at the multi-function chamber 30 and the Between the freezer compartments 20. Of course, it can be understood that the refrigerating compartment 10, the freezing compartment 20, and the multi-function compartment 30 can also be arranged in other manners.

Referring to FIG. 2, the refrigeration device 100 includes a main refrigeration cycle system. The principle of the present invention is to use the heat dissipated by the condenser in the refrigeration cycle to thaw the stored food, and at the same time ensure that the cold volume produced by the evaporator can be used to refrigerate food or articles to achieve rational use of energy, thereby achieving The purpose of environmental protection and energy conservation.

The main refrigeration cycle system mainly comprises a compressor 1, a main condenser 2, a multi-function chamber condenser 3, a control valve, a multi-function chamber evaporator 4, and a main evaporator. The main evaporator includes a refrigerating compartment evaporator 5 and a freezing compartment evaporator 6. The control valve includes a first control unit (in the present embodiment, a first control valve 71) and a second control unit (in the present embodiment, a second control valve 72). Wherein the compressor 1 is connected in series with the first control valve 71; the main condenser 2 is connected in parallel with the multi-function chamber condenser 3, and then the main condenser 2 and the multi-function chamber condenser 3 Further connected in series between the first control valve 71 and the second control valve 72. The multi-chamber evaporator 4 is connected in parallel with the refrigerating compartment evaporator 5, and then the multi-chamber evaporator 4 and the refrigerating compartment evaporator 5 are further connected to the second control valve 72 and the freezer compartment evaporator 6 connected in series. Finally, the freezer compartment evaporator 6 is connected in series to the compressor 1 to effect the connection of the main refrigeration cycle system as a whole. It can also be understood that the multi-function chamber condenser 3 is connected in parallel with the main condenser 2 via a first control unit, and the multi-chamber evaporator 4 is connected in parallel with the main evaporator via a second control unit. Specifically, the multi-chamber evaporator 4 and the refrigerating compartment evaporator 5 are connected in parallel by a second control unit. The first control valve 71 is configured to control the main condenser 2 and the multi-function chamber condenser 3 to be turned off or on; the second control valve 72 is used to control the The multi-function chamber evaporator 4 and the refrigerating chamber evaporator 5 are turned off or on. The multi-function chamber 30 can be selectively operated in the refrigerating mode or the defrosting mode by the control valve. That is, the multi-function chamber 30 is capable of switching between a refrigerating mode or a defrosting mode. Detailed implementations are detailed below.

Specifically, the compressor 1 includes a compressor inlet 11 and a compressor outlet 12. The main condenser 2 includes a main condenser inlet 21 and a main condenser outlet 22. The multi-function chamber condenser 3 includes a multi-function chamber condenser inlet 31 and a multi-function chamber condenser outlet 32. The multi-chamber evaporator 4 includes a multi-chamber evaporator inlet 41 and a multi-chamber evaporator outlet 42. The refrigerating compartment evaporator 5 includes a refrigerating compartment evaporator inlet 51 and a refrigerating compartment evaporator outlet 52. The freezer evaporator 6 includes a freezer evaporator inlet 61 and a freezer evaporator outlet 62.

The first control valve 71 includes a first inlet 711 connected to the compressor outlet 12, a first outlet 712 connected to the main condenser inlet 21, and a first connection to the multi-chamber condenser inlet 31. Second exit 713. The main condenser outlet 22 is in communication with the multi-chamber condenser outlet 32.

The second control valve 72 includes a second inlet 721 connected to the main condenser outlet 22 and the multi-chamber condenser outlet 32, a third outlet 722 connected to the multi-chamber evaporator inlet 41, and A fourth outlet 723 is connected to the evaporator inlet 51 of the refrigerating compartment. The multi-chamber evaporator outlet 42 is in communication with the refrigerating compartment evaporator outlet 52.

The freezer evaporator inlet 61 is connected to the multi-chamber evaporator outlet 42 and the refrigerating compartment evaporator outlet 52, and the freezer evaporator outlet 62 is connected to the compressor inlet 11.

Referring to FIG. 3 and FIG. 4, the multifunctional chamber 30 has a multifunctional indoor chamber 33. As will be appreciated by those skilled in the art, the front end opening of the multi-function chamber 33 can include a peripheral wall and a rear wall. The multi-function chamber condenser 3 is disposed around the peripheral wall of the multi-function chamber 33. With this arrangement, when the multi-function chamber 30 is in the defrosting mode, the thawed food can be uniformly heated and quickly thawed. In the illustrated embodiment of the present invention, the multifunctional indoor chamber 33 has a substantially rectangular parallelepiped shape including an upper wall 331, a lower wall 332, a left wall 333, a right wall 334, and a rear wall 335. The upper wall 331, the lower wall 332, the left wall 333, and the right wall 334 constitute a peripheral wall of the multifunctional indoor chamber 33. The multi-function chamber condenser 3 is disposed outside the peripheral wall. Of course, when in the defrosting mode, the average temperature of the multifunctional chamber 30 can be controlled at about 40 ° C, thereby achieving rapid thawing without deteriorating the food at high temperatures. The multi-chamber evaporator 4 is disposed on the rear wall 335 of the multi-function chamber 33 to achieve a refrigerating function in a rational arrangement.

Those skilled in the art can understand that in order not to occupy the internal space of the multifunctional indoor chamber 33 and make the multifunctional indoor chamber 33 more beautiful, the multifunctional chamber evaporator 4 and the multifunctional chamber condenser 3 are preferably disposed in the multifunctional room. The outside of the liner 33.

It should be noted that the arrangement of the multi-function chamber condenser 3 and the multi-function chamber evaporator 4 according to the present invention may be set to be different from the embodiment in accordance with actual processing and production requirements.

As shown in FIG. 2, the refrigerating apparatus 100 further includes a defroster tube 8 and a desiccant filter 9 connected in series to the main refrigeration cycle system. The defroster tube 8 includes a defroster tube inlet 81 and a defroster tube outlet 82, and the defroster tube inlet 81 is connected to the main condenser outlet 22 and the multi-chamber condenser outlet 32. The drying filter 9 is connected in series between the second inlet 721 of the second control valve 72 and the defroster outlet 82 to effect treatment of the refrigerant. Further, the main refrigeration cycle system further includes a throttling element disposed in front of the multi-chamber evaporator 4, the throttling element for throttling and depressurizing the refrigerant, and then causing the refrigerant to enter the evaporator. The throttle element can be a capillary or a throttle or the like. When the throttling element is a capillary tube, it may be separately disposed before the multi-function chamber evaporator 4 or integrally provided at the multi-chamber evaporator inlet 41. When the throttling element is a throttle valve, it may be integrated with or separately from the second control valve 72. The first and

second control valves

71, 72 may be three-way solenoid valves.

Although the above merely defines the "disar uniting of the multi-chamber evaporator 4", it will be understood by those skilled in the art that the throttling element should be disposed after the main condenser 2 and the multi-function chamber condenser 3. That is, the refrigerant flowing out through the main condenser outlet 22 or the multi-function chamber condenser outlet 32 is throttled and depressurized by the throttle element, and then flows into the multi-function chamber evaporator 4 through the multi-chamber evaporator inlet 41.

It will also be understood by those skilled in the art that a throttling element for throttling and depressurizing the refrigerant may be provided before the refrigerating compartment evaporator 5 to allow the throttled depressurized refrigerant to enter the refrigerating compartment evaporator 5. The refrigerant entering the multi-chamber evaporator inlet 41 and the refrigerant entering the refrigerating compartment evaporator 5 can also be throttle-reduced by the same throttling element.

In the illustrated embodiment of the present invention, the first outlet 712 and the second outlet 713 can only be selectively connected; the third outlet 722 and the fourth outlet 723 can only be selectively connected. And when the first outlet 712 is turned on, the third outlet 722 is also turned on, but the second outlet 713 and the fourth outlet 723 are both turned off. At this time, the multi-function chamber condenser 3 and the refrigerating chamber evaporator 5 are stopped, the multi-function chamber evaporator 4 is in an operating state, and the multi-function chamber 30 is in a refrigerating mode. Conversely, when the second outlet 713 is turned on, the fourth outlet 723 is also turned on, but the first outlet 712 and the third outlet 722 are both turned off. At this time, the main condenser 2 and the multifunctional room The evaporator 4 is stopped, the multi-function chamber condenser 3 and the refrigerating chamber evaporator 5 are in an operating state, and the multi-function chamber 30 is in a defrosting mode. It can be understood that the structure and arrangement of the main condenser 2, the refrigerating compartment evaporator 5, and the freezing compartment evaporator 6 in the present invention are all conventional designs, and details are not described herein again.

The refrigeration device 100 also includes a control device (not shown). Outputting a control signal to the first control valve 71 and the second control valve 72 by the control device of the refrigerating device 100, in turn, enables the multi-function chamber 30 to switch between the refrigerating mode or the defrosting mode.

Referring to FIG. 2, when the multi-function chamber 30 is in the defrosting mode, the compressor 1, the multi-function chamber condenser 3, the control valve and the refrigerating chamber evaporator 5 are connected in series to form a refrigeration cycle. The principle is as follows: the compressor 1 first compresses the refrigerant into a high temperature and high pressure gas; after the high temperature and high pressure gas is cooled in the multifunctional chamber condenser 3, it becomes a low temperature and high pressure liquid, and the released heat is released by the multifunctional chamber 30. After the low temperature and high pressure liquid is throttled and depressurized by the throttling element, it enters the refrigerating compartment evaporator 5 to be gasified, absorbs heat and becomes a low temperature and low pressure gas, and finally returns to the compressor 1. Referring to FIG. 2, when the multi-function chamber 30 is in the refrigerating mode, the compressor 1, the main condenser 2, the control valve, and the multi-function chamber evaporator 4 are connected in series to form a refrigeration cycle. The principle is as follows: the compressor 1 first compresses the refrigerant into a high temperature and high pressure gas; after the high temperature and high pressure gas is cooled in the main condenser 2, it becomes a low temperature and high pressure liquid; after the low temperature and high pressure liquid is throttled and depressurized, it enters more The function chamber evaporator 4 performs gasification and heat absorption to become a low-temperature low-pressure gas, and finally returns to the compressor 1. In the refrigerating apparatus 100 of the present invention, when the frozen food is put into the multi-function chamber 30, the amount of cooling and heat are fully utilized, and waste of energy is avoided.

It should be noted that in the refrigeration apparatus 100 of the present invention, the freezing compartment 20 is always in a cooling state regardless of whether the multi-function chamber 30 is in the defrosting mode or the refrigerating mode. In the illustrated embodiment of the present invention, the multi-function chamber 30 and the freezing chamber 20 are respectively located at the upper end and the lower end of the refrigerating apparatus 100. When the multi-function chamber 30 is in the defrosting mode, the amount of heat to be thawed is relatively far from the freezing compartment 20 to minimize the influence on the freezing compartment 20.

The control device of the refrigerating device 100 of the present invention includes a control panel and a control unit. The control device includes a control panel and a control unit. The control panel is provided with a refrigerating mode button and a defrosting mode button, and the control unit controls the first control valve 71 to turn on or off the main condenser according to a signal given by the control panel (by a user input) 2 and the multi-function chamber condenser 3, while controlling the second control valve 72 to turn on or off the multi-chamber evaporator 4 and the refrigerating chamber evaporator 5, thereby making the multi-function chamber 30 Can choose one in the refrigerated mode or the thaw mode Work under. In this embodiment, the control device may further include a temperature sensor (not shown) for monitoring the temperature in the multi-function chamber 30, and returning a signal to the control unit in real time according to the change of the temperature, and the control unit according to the The temperature signal automatically controls the thawing time. After the thawing time is over, the control unit output signal controls the first control valve 71 and the second control valve 72, which in turn automatically restores the defrosting mode to the refrigerating mode. Of course, the user can also choose to select the refrigerating mode on the control panel to end the defrosting mode. It can be understood that, in the present invention, the refrigerating mode button and the defrosting mode button may be any one of a mechanical button, a touch button, an inductive button, a touch screen button or other button form.

In the application process, the control method of the refrigerating apparatus 100 of the present invention includes: in the general use state, the multi-function chamber 30 is preset to a refrigerating mode, and at this time, the main condenser 2 and the multi-chamber evaporator 4 are in operation. a state; when there is a defrosting demand, the control device switches the working state of the multi-function room 30 to the defrosting mode according to the input signal of the user; for example, the user selects the defrosting mode on the control panel, under the control of the control unit, The outlets of the first control valve 71 and the second control valve 72 are switched. At this time, the multi-function chamber condenser 3 and the refrigerating chamber evaporator 5 enter an operating state, and the main condenser 2 and the multi-function chamber evaporator 4 are stopped. After the thawing is completed, the multi-function chamber 30 is restored to the refrigerating mode. In the present invention, the time point at which the thawing is completed can be automatically controlled by the user or automatically by presetting a thawing time in the control device. Of course, other methods can also be applied, for example, using a temperature sensor to detect the temperature in the multi-function chamber 30, and returning a signal to the control unit in real time according to the change of the temperature, and the control unit automatically controls the defrosting time according to the temperature signal.

Referring to FIG. 2, it can be understood that the refrigerator compartment evaporator 5 can also be always electrically connected to the main refrigeration cycle system like the freezer compartment evaporator 6, that is, in the refrigeration apparatus 100 of the present invention. Regardless of whether the multi-function chamber 30 is in the defrosting mode or the refrigerating mode, the refrigerating compartment 10 and the freezing compartment 20 are always in a refrigerating state. As an implementation manner of implementing the above connection, the fourth outlet 723 of the second control valve 72 may be always electrically connected to the refrigerating compartment evaporator inlet 51, and the third outlet of the second control valve 72 may be 722 is selectively turned on or off with the multi-chamber evaporator inlet 41. Of course, the refrigerating compartment evaporator inlet 51 may also be directly connected to the main refrigeration cycle system bypassing the second control valve 72 (for example, the refrigerating compartment evaporator inlet 51 may be directly connected to the dry filter. 9). At this time, the second control valve 72 only needs to have one inlet and one outlet.

Those skilled in the art will appreciate that as an alternative to the embodiment shown in Figure 2, the multifunctional chamber is steamed. The hair unit 4 can also be connected directly between the second control valve 72 and the compressor 1 in series. For example, the outlet 42 of the multi-chamber evaporator 4 can be in communication with the outlet 62 of the freezer evaporator 6 to be connected to the inlet of the compressor 1. In this embodiment, it is preferable that the refrigerating compartment evaporator 5 and the freezing compartment evaporator 6 are always electrically connected to the main refrigerating cycle system, that is, in the refrigerating apparatus 100 of the present invention, regardless of whether the multi-function compartment 30 is in a defrosting manner The mode is also the refrigerating mode, and the refrigerating compartment 10 and the freezing compartment 20 are always in a cooling state. For example, the fourth outlet 723 of the second control valve 72 can be always in communication with the refrigerating compartment evaporator inlet 51, while the third outlet 722 of the second control valve 72 is selectively coupled to the multi-chamber evaporator inlet. 41 is turned on or off to allow the multi-chamber evaporator to be in a refrigerated or thawed mode.

The working state of the refrigerating apparatus 100 of the present invention will be briefly described below.

Referring to FIG. 2, when the multi-function chamber 30 is in the defrosting mode, the main condenser 2 and the multi-function chamber evaporator 4 are all turned off, and at this time, the compressor 1 and the multi-function chamber are condensed. The refrigerator 3, the refrigerating compartment evaporator 5 and the freezing compartment evaporator 6 are both turned on to form a refrigeration cycle; when the multi-function compartment 30 is in the refrigerating mode, the multi-function chamber condenser 3 is turned off, at which time the compression The machine 1, the main condenser 2, the multi-function chamber evaporator 4, the refrigerating chamber evaporator 5, and the freezing chamber evaporator 6 are all turned on to form a refrigeration cycle.

Compared with the prior art, the refrigerating device 100 of the present invention has a multi-function chamber 30. When the multi-function chamber 30 is in the defrosting mode, the refrigerating device 100 of the present invention can be directly thawed, which is convenient and quick; In the thawing mode, the heat generated by the main refrigeration cycle system on the multi-function chamber condenser 3 is used for thawing, and the amount of refrigeration generated by the main refrigeration cycle system on the refrigerating compartment evaporator 5 is used for refrigerating, and finally energy is achieved. Rational use to avoid energy waste. When the multi-function chamber 30 is in the refrigerating mode, the refrigerating apparatus 100 of the present invention has two refrigerating compartments of the refrigerating compartment 10 and the multi-function compartment 30, so that the food can be subdivided, and the user experience of the refrigerating apparatus 100 is improved.

It should be noted that the above embodiments are only for illustrating the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the embodiments of the present invention, those skilled in the art will understand that the invention can be modified or equivalently substituted without departing from the invention. The spirit and scope of the invention and its modifications are intended to be included within the scope of the appended claims.

Claims

A refrigeration device includes a main refrigeration cycle system and a plurality of storage chambers, wherein

The plurality of storage chambers include a multi-function chamber, the exterior of which is provided with a multi-function chamber evaporator that provides cooling for the multi-function chamber and a multi-function chamber condenser that provides heat.
A refrigerator according to claim 1, wherein

The multi-function chamber evaporator and the multi-function chamber condenser are selectively operated.
A refrigerator according to claim 1 or 2, wherein

The main refrigeration cycle system includes a main condenser and a main evaporator.
A refrigerator according to claim 3, wherein

The main evaporator includes a refrigerating compartment evaporator and a freezing compartment evaporator.
A refrigerator according to claim 3, wherein

The multi-function chamber condenser is connected in parallel with the main condenser through a first control unit, and the multi-function chamber evaporator is connected in parallel with the main evaporator through a second control unit.
A refrigerator according to claim 4, wherein

The multi-function chamber condenser and the main condenser are connected in parallel by a first control unit, and the multi-function chamber evaporator and the refrigerating chamber evaporator are connected in parallel by a second control unit.
A refrigerator according to claim 1 or 2, wherein

The multi-function chamber evaporator is disposed on a rear wall of the multi-function chamber.
A refrigerator according to claim 1 or 2, wherein

The multi-function chamber condenser is disposed on a peripheral wall of the multi-function chamber.
A refrigerator according to claim 5 or 6, wherein

The first control unit turns off the multi-function chamber condenser when the multi-function chamber is refrigerating; the second control unit turns the multi-function chamber evaporator on.
A refrigerator according to claim 5 or 6, wherein

The first control unit causes the multi-function chamber condenser to be turned on when the multi-function chamber is heating; the second control unit turns off the multi-function chamber evaporator.