CN217357156U - Indoor unit and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses an indoor unit, including: the machine shell is internally provided with a first chamber and a second chamber; the first chamber is provided with an air return inlet and an air outlet, and the second chamber is sealed and used for storing articles; the fan assembly is arranged in the first chamber; the heat exchange assembly comprises a first heat exchanger and a second heat exchanger; the first heat exchanger is arranged in the first chamber, and the second heat exchanger is arranged in the second chamber; the first heat exchanger and the second heat exchanger are connected in parallel, and two ends of the second heat exchanger are respectively provided with a throttling element; the second heat exchanger is used for exchanging heat with air in the second compartment, and the refrigerant flow of the second heat exchanger is adjusted through the two throttling elements, so that articles in the second compartment are refrigerated or heated. The application also discloses an air conditioner.

Description

Indoor unit and air conditioner

Technical Field

The application relates to the technical field of air conditioners, for example to an indoor unit and an air conditioner.

Background

Along with the continuous improvement of the living standard of people and the continuous improvement of the living quality, the requirements on intelligent household appliances in the home environment are gradually strong, and the comfort and the convenience of the living environment become necessities of the life of people. An air conditioner has a function of adjusting indoor temperature, and is now an indispensable household appliance in homes. Wherein the split air conditioner comprises an indoor unit and an outdoor unit,

the related art discloses an indoor unit, a heat exchanger and a cross flow fan are arranged in a casing, external air enters the casing and then exchanges heat with the heat exchanger, and the cross flow fan blows the air after heat exchange into the indoor unit, so that indoor refrigeration or heating is realized.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

the indoor unit has single function, can only play the role of indoor refrigeration or heating, and is difficult to meet the intelligent requirement of users on household appliances. In addition, for small-sized rooms, the indoor unit occupies a large space, and if other intelligent household appliances such as a refrigerator and a hot drink machine are continuously placed, the rooms are crowded.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an indoor unit and an air conditioner, and solves the problems that the function of the air conditioner is single and the requirement of a user on the intellectualization of household appliances is difficult to meet.

In some embodiments, the indoor unit includes:

the machine shell is internally provided with a first chamber and a second chamber; the first chamber is provided with an air return inlet and an air outlet, and the second chamber is sealed and used for storing articles;

the fan assembly is arranged in the first chamber;

the heat exchange assembly comprises a first heat exchanger and a second heat exchanger; the first heat exchanger is arranged in the first chamber, and the second heat exchanger is arranged in the second chamber; the first heat exchanger and the second heat exchanger are connected in parallel, and two ends of the second heat exchanger are respectively provided with a throttling element;

the second heat exchanger is used for exchanging heat with air in the second compartment, and the refrigerant flow of the second heat exchanger is adjusted through the two throttling elements, so that articles in the second compartment are refrigerated or heated.

Optionally, the second heat exchanger is configured to be plate-shaped, and the second heat exchanger is disposed near the back plate of the second compartment, and the plate surface of the second heat exchanger is perpendicular or oblique to the bottom plate of the second compartment.

Optionally, an auxiliary fan is arranged in the second compartment, and the auxiliary fan is located on one side of the second heat exchanger, which is far away from the back plate of the second compartment.

Optionally, the auxiliary fan is an axial flow fan, and an axis of the axial flow fan is perpendicular to the plate surface of the second heat exchanger.

Optionally, a gap is left between the second heat exchanger and the bottom plate and/or the top plate of the second chamber.

Optionally, the throttling element includes an electronic expansion valve, and the refrigerant flow of the second heat exchanger is adjusted by adjusting the opening degree of the electronic expansion valve.

Optionally, the second compartment is located above the first compartment; alternatively, the first and second electrodes may be,

the second compartment is located below the first compartment.

Optionally, a heat insulation layer is arranged between the second chamber and the first chamber.

Optionally, the indoor unit further includes:

a temperature detector to detect a temperature within the second compartment.

In some embodiments, the air conditioner includes the indoor unit according to any one of the above embodiments.

The indoor unit and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

indoor air gets into in the first room and carries out the heat transfer with first heat exchanger from the return air inlet, and first heat exchanger is the indoor heat exchanger of the above-mentioned name, and the air after the fan subassembly will be heat exchanged blows back to indoor again from the air outlet, realizes indoor refrigeration or heats. Meanwhile, as the second heat exchanger is connected with the first heat exchanger in parallel, when the indoor unit refrigerates, low-temperature liquid refrigerants are respectively arranged in the first heat exchanger and the second heat exchanger, the second heat exchanger reduces the temperature in the second compartment at the moment, so that the effect of refrigerating articles is achieved, and the second compartment is used as a refrigerating compartment; when the indoor unit heats, high-temperature gaseous refrigerants are filled in the first heat exchanger and the second heat exchanger, the temperature in the second compartment is increased by the second heat exchanger, the second compartment is used as a heating chamber, and articles are heated; in addition, because two ends of the second heat exchanger are respectively provided with one throttling element, the flow of the refrigerant in the second heat exchanger is adjusted through the two throttling elements, and the temperature of the second chamber can be accurately controlled.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural diagram of an indoor unit provided in an embodiment of the present disclosure;

FIG. 2 is a schematic structural diagram of a first heat exchanger provided by an embodiment of the disclosure;

FIG. 3 is a schematic diagram of a second heat exchanger provided by the disclosed embodiment;

fig. 4 is a schematic structural diagram of an auxiliary fan provided in the embodiment of the present disclosure;

fig. 5 is a schematic diagram of a control method of an air conditioner according to an embodiment of the present disclosure;

fig. 6 is a schematic view illustrating a control method of an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a schematic diagram of a control method of an air conditioner according to an embodiment of the present disclosure.

Reference numerals:

100: a housing; 101: a first compartment; 102: a second compartment; 103: a back plate; 104: a base plate; 110: a fan assembly; 111: an auxiliary fan; 120: a first heat exchanger; 130: a second heat exchanger; 131: an electronic expansion valve.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the devices, elements or components indicated to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "up" may also be used to indicate some attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

The refrigerant circulating system of the air conditioner consists of a compressor, a four-way valve, an outdoor heat exchanger, a capillary tube and an indoor heat exchanger. The low-temperature low-pressure gaseous refrigerant is compressed into high-temperature high-pressure gaseous refrigerant in the compressor, when the air conditioner refrigerates, the compressor discharges the high-temperature high-pressure gaseous refrigerant into the outdoor heat exchanger through the four-way valve, the outdoor heat exchanger cools the gaseous refrigerant into low-temperature high-pressure liquid refrigerant, and the liquid refrigerant is sent into the indoor heat exchanger through the capillary tube; under the throttling and pressure reducing effects of the capillary tube, the refrigerant entering the indoor heat exchanger is changed into a low-temperature and low-pressure liquid refrigerant; the air temperature is reduced after the indoor heat exchanger exchanges heat with indoor air, and meanwhile, the refrigerant is gasified into a low-temperature and low-pressure gaseous refrigerant again and is introduced into the compressor through the four-way valve to be compressed again. When the air conditioner heats, the circulation direction of the refrigerant in the refrigerant circulation system is opposite.

In some embodiments, as shown in fig. 1 and 2, the indoor unit includes a casing 100, a fan assembly 110, and a heat exchange assembly. Wherein, the interior of the casing 100 is provided with a first compartment 101 and a second compartment 102; the first compartment 101 is provided with an air return opening and an air outlet, and the second compartment 102 is sealed for storing articles; a fan assembly 110 disposed in the first compartment 101; a heat exchange assembly comprising a first heat exchanger 120 and a second heat exchanger 130; the first heat exchanger 120 is disposed in the first compartment 101, and the second heat exchanger 130 is disposed in the second compartment 102; the first heat exchanger 120 and the second heat exchanger 130 are connected in parallel, and two ends of the second heat exchanger 130 are respectively provided with a throttling element; wherein the second heat exchanger 130 is used for exchanging heat with the air in the second compartment 102, and the flow rate of the second heat exchanger 130 is adjusted by two throttling elements, so as to refrigerate or heat the goods in the second compartment 102.

By adopting the indoor unit provided by the embodiment of the present disclosure, indoor air enters the first compartment 101 from the air return opening and exchanges heat with the first heat exchanger 120, the first heat exchanger 120 is the indoor heat exchanger referred to above, and the fan assembly 110 blows back the air after heat exchange to the indoor space from the air outlet again, so as to realize indoor cooling or heating. Meanwhile, as the second heat exchanger 130 is connected with the first heat exchanger 120 in parallel, when the indoor unit refrigerates, the first heat exchanger 120 and the second heat exchanger 130 are both low-temperature liquid refrigerants, at the moment, the second heat exchanger 130 reduces the temperature in the second compartment 102, so that the effect of refrigerating articles is achieved, and the second compartment 102 serves as a refrigerating compartment; when the indoor unit heats, the first heat exchanger 120 and the second heat exchanger 130 both use high-temperature gaseous refrigerant, and at this time, the second heat exchanger 130 increases the temperature in the second compartment 102, so as to play a role in heating articles, and the second compartment 102 serves as a heating chamber; further, since the two ends of the second heat exchanger 130 are respectively provided with one throttling element, the temperature of the second compartment 102 can be controlled by adjusting the flow rate of the refrigerant in the second heat exchanger 130 using the two throttling elements.

In some embodiments, the indoor unit is an upright type indoor unit, and the casing 100 is configured in a cylindrical shape. The fan assembly 110 includes a crossflow fan with its axis disposed vertically. The first heat exchanger 120 is disposed on the air intake side of the cross-flow fan and near the air return opening of the first compartment 101. Indoor air enters the first compartment 101 from the air return opening and exchanges heat with the first heat exchanger 120, and then the cross-flow fan blows the air after heat exchange back to the indoor from the air outlet, so that indoor cooling or heating is realized.

Optionally, the second chamber 102 is disposed above the first chamber 101; alternatively, the second compartment 102 is disposed below the first compartment 101. The second compartment 102 and the first compartment 101 may have a space therebetween, and the sidewalls of the two compartments may abut.

Optionally, a thermal insulation layer is disposed between the second compartment 102 and the first compartment 101. Since the second compartment 102 is mainly used for refrigerating or heating the articles and the first compartment 101 is mainly used for circulating heat exchange of indoor air, there is a difference in temperature requirements of the two compartments. In this way, the heat transferred between the second chamber 102 and the first chamber 101 can be reduced by the heat insulating layer, and the temperature independence of the second chamber 102 can be maintained.

Alternatively, the second heat exchanger 130 is constructed in a plate shape, and the second heat exchanger 130 is disposed adjacent to the back plate 103 of the second compartment 102 with its plate surface perpendicular to the bottom plate 104 of the second compartment 102. The second compartment 102 is configured in a rectangular parallelepiped shape with its bottom surface disposed horizontally. The vertical arrangement of the plate surface of the second heat exchanger 130 is beneficial to saving the installation space in the second compartment 102, so that more articles can be placed in the second compartment 102.

Optionally, the plate surface of the second heat exchanger 130 is inclined to the bottom plate 104 of the second compartment 102. Thus, the heat exchange area of the second heat exchanger 130 can be increased, and the temperature adjustment rate of the second compartment 102 can be increased.

Optionally, an auxiliary fan 111 is disposed in the second compartment 102, and the auxiliary fan 111 is located on the side of the second heat exchanger 130 away from the back plate 103 of the second compartment 102. The second heat exchanger 130 is disposed close to the back plate 103 of the second compartment 102, and when the auxiliary blower 111 rotates, heat diffusion of the second heat exchanger 130 can be accelerated, and air in the second compartment 102 is forced to circulate, thereby increasing the temperature change rate of the second compartment 102.

Optionally, the auxiliary fan 111 is an axial flow fan, and an axis of the axial flow fan is perpendicular to the plate surface of the second heat exchanger 130. In this way, the heat diffusion of the second heat exchanger 130 is facilitated.

Optionally, as shown in fig. 4, a gap is left between the second heat exchanger 130 and the bottom plate 104 of the second chamber 102. The second heat exchanger 130 is close to the back plate 103 of the second compartment 102, and divides the second compartment 102 into two side spaces; the space of the second heat exchanger 130 on the side close to the back plate 103 is referred to as a first side space, and the space of the second heat exchanger 130 on the side away from the back plate 103 is referred to as a second side space. Since the second heat exchanger 130 is spaced apart from the bottom plate 104 of the second chamber 102, the first side space and the second side space communicate with each other through the gap adjacent to the bottom plate 104. In this way, air circulation within the second compartment 102 is facilitated.

Illustratively, an auxiliary fan 111 is disposed in the second side space, and when the auxiliary fan 111 is activated, air in the second side space is circulated to the first side space through a gap near the bottom plate 104. The air of the first side space passes through the second heat exchanger 130 and re-enters the second side space. This circulates air and improves the heat exchange efficiency of the air and the second heat exchanger 130.

Optionally, a gap is left between the second heat exchanger 130 and the ceiling of the second chamber 102. Since the second heat exchanger 130 is spaced apart from the ceiling of the second chamber 102, the first side space and the second side space communicate with each other through the gap near the ceiling. In this way, air circulation in the second compartment 102 is facilitated.

Optionally, a gap is left between the second heat exchanger 130 and both the bottom plate 104 and the top plate of the second compartment 102. In this way, air circulation in the second compartment 102 is facilitated.

Optionally, as shown in fig. 3, the throttling element includes an electronic expansion valve 131, and the refrigerant flow of the second heat exchanger 130 is adjusted by adjusting an opening degree of the electronic expansion valve 131. In this way, the temperature of the second compartment 102 can be precisely controlled by controlling the flow rate of the refrigerant of the second heat exchanger 130.

Optionally, the indoor unit further includes a temperature detector disposed in the second compartment 102 for detecting a temperature of the second compartment 102.

The air conditioner is internally provided with a processor which is used for controlling the operation mode of the air conditioner and the states of various electric devices, and a user sends an instruction signal to the processor through a remote controller so as to control the air conditioner.

In some embodiments, as shown in fig. 5, embodiments of the present disclosure provide a control method of an air conditioner, including:

s10: the processor determines the set temperature of the second compartment 102 according to the user instruction;

s20: the processor obtains the actual temperature of the second chamber 102;

s30: the processor adjusts the opening degrees of the two electronic expansion valves 131 according to the set temperature and the actual temperature of the second chamber 102.

In the case of the air conditioner operating in the cooling mode, the second compartment 102 serves as a refrigerating compartment, and the set temperature of the second compartment 102 is within the first temperature range. The first temperature interval ranges from 2 ℃ to 14 ℃. In the heating mode of the air conditioner, the second compartment 102 serves as a heating chamber, and the set temperature of the second compartment 102 is within the second temperature range. The second temperature interval ranges from 55 ℃ to 65 ℃. The user sends a command signal for setting the temperature to the processor through the remote controller.

Alternatively, as shown in fig. 6, adjusting the opening degrees of the two electronic expansion valves 131 according to the set temperature and the actual temperature of the second chamber 102 includes:

s31: when the air conditioner operates in the cooling mode and the actual temperature is higher than the set temperature, the processor controls the opening degrees of the two electronic expansion valves 131 to be a first opening degree d 1;

s32: when the air conditioner operates in the cooling mode and the actual temperature is equal to the set temperature, the processor controls the opening degrees of the two electronic expansion valves 131 to be the second opening degree d 2;

s33: when the air conditioner operates in the cooling mode and the actual temperature is lower than the set temperature, the processor controls the two electronic expansion valves 131 to close.

Wherein d1 is greater than d 2.

For example, in the cooling mode of the air conditioner, the user sets the temperature value of the second compartment 102 to 8 ℃ through the remote controller. The actual temperature of the second compartment 102 obtained by the processor is greater than 8 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to be 300 steps, so that the temperature is rapidly reduced; when the temperature is gradually reduced to be equal to 8 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 50 steps; as the temperature continues to drop below 8 ℃, the processor controls the two electronic expansion valves 131 to close. This enables precise control of the temperature of the second chamber 102.

In a cooling mode of the air conditioner, the user sets the temperature value of the second compartment 102 to be 8 ℃. The actual temperature of the second compartment 102 obtained by the processor is greater than 9 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to be 300 steps, so that the temperature is rapidly reduced; when the temperature is gradually reduced to be equal to 8 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 50 steps; as the temperature continues to drop below 6 ℃, the processor controls the two electronic expansion valves 131 to close. This allows the temperature of the second compartment 102 to approach or equal to the preset temperature, which can both meet the user's demand and reduce the frequency of adjusting the opening degree of the electronic expansion valve 131.

In a cooling mode of the air conditioner, the user sets the temperature value of the second compartment 102 to 4 ℃. The actual temperature of the second compartment 102 obtained by the processor is greater than 4 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to be 480 steps, so that the temperature is rapidly reduced; when the temperature is gradually reduced to be equal to 4 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 50 steps; as the temperature continues to drop below 4 ℃, the processor controls the two electronic expansion valves 131 to close. This enables precise control of the temperature of the second chamber 102.

In a cooling mode of the air conditioner, the user sets the temperature value of the second compartment 102 to 4 ℃. The actual temperature of the second compartment 102 obtained by the processor is greater than 5 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to 480 steps, so that the temperature is rapidly reduced; when the temperature is gradually reduced to be equal to 4 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 50 steps; as the temperature continues to drop to less than 2 ℃, the processor controls the two electronic expansion valves 131 to close.

Alternatively, in case that the two electronic expansion valves 131 are opened, the frequency of the compressor of the air conditioner is increased. After the processor determines the set temperature of the second chamber 102 according to the user instruction, the second heat exchanger 130 needs the refrigerant circulation amount, and the system pressure is reduced after the two electronic expansion valves 131 are opened, so that the processor controls the frequency increase of the compressor to increase the refrigerant circulation amount and ensure the requirements of the air conditioner and the refrigerant circulation amount of the second chamber 102. The frequency of the compressor increase is determined according to the difference between the set temperature and the actual temperature of the second compartment 102, and the frequency of the compressor increase is greater the difference.

In some embodiments, as shown in fig. 7, adjusting the opening degrees of the two electronic expansion valves 131 according to the set temperature and the actual temperature of the second chamber 102 comprises:

s34: when the air conditioner operates in a heating mode and the actual temperature is higher than the set temperature, the processor controls the two electronic expansion valves 131 to be closed;

s35: when the air conditioner operates in the heating mode and the actual temperature is equal to the set temperature, the processor controls the opening degrees of the two electronic expansion valves 131 to be the third opening degree d 3;

s36: when the air conditioner operates in the heating mode and the actual temperature is lower than the set temperature, the processor controls the opening degrees of the two electronic expansion valves 131 to be the fourth opening degree d 4.

Wherein d4 is greater than d 3.

For example, in the heating mode of the air conditioner, the user sets the temperature value of the second compartment 102 to 60 ℃ through the remote controller. The actual temperature of the second chamber 102 obtained by the processor is less than 60 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to be 480 steps, so that the heating is performed rapidly; when the temperature gradually rises to be equal to 60 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 100 steps; as the temperature continues to rise above 60 ℃, the processor controls the two electronic expansion valves 131 to close. This enables precise control of the temperature of the second chamber 102.

In a heating mode of the air conditioner, the user sets the temperature value of the second compartment 102 to 60 ℃. The actual temperature of the second compartment 102 obtained by the processor is less than 58 ℃, and the processor controls the opening degrees of the two electronic expansion valves 131 to 480 steps, so that the heating is performed rapidly; when the temperature gradually rises to be equal to 60 ℃, the processor controls the opening degrees of the two electronic expansion valves 131 to be reduced to 100 steps; as the temperature continues to rise above 62 ℃, the processor controls both electronic expansion valves 131 to close. This allows the temperature of the second compartment 102 to approach or equal to the preset temperature, which can both meet the user's demand and reduce the frequency of adjusting the opening degree of the electronic expansion valve 131.

In some embodiments, in the case where the user instructs that the temperature of the second chamber 102 is not set, the processor controls the two electronic expansion valves 131 to be closed. Since the user does not have the requirement of refrigerating or heating the articles using the second compartment 102, the two electronic expansion valves 131 are closed, and the second heat exchanger 130 does not participate in the refrigerant circulation of the air conditioner, thereby avoiding energy waste.

The embodiment of the disclosure also provides an air conditioner, which comprises the indoor unit described in any one of the embodiments.

The above description and the drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An indoor unit, comprising:

a housing (100) in which a first chamber (101) and a second chamber (102) are provided; the first chamber (101) is provided with an air return inlet and an air outlet, and the second chamber (102) is sealed and used for storing articles;

a fan assembly (110) disposed within the first compartment (101);

a heat exchange assembly comprising a first heat exchanger (120) and a second heat exchanger (130); the first heat exchanger (120) is arranged in the first compartment (101), and the second heat exchanger (130) is arranged in the second compartment (102); the first heat exchanger (120) and the second heat exchanger (130) are connected in parallel, and two throttling elements are respectively arranged at two ends of the second heat exchanger (130);

the second heat exchanger (130) is used for exchanging heat with air in the second compartment (102), and the refrigerant flow of the second heat exchanger (130) is adjusted through the two throttling elements, so that the articles in the second compartment (102) are refrigerated or heated.

2. The indoor unit according to claim 1, wherein,

the second heat exchanger (130) is configured in a plate shape, the second heat exchanger (130) is arranged close to the back plate (103) of the second compartment (102), and the plate surface of the second heat exchanger is vertical or inclined to the bottom plate (104) of the second compartment (102).

3. The indoor unit according to claim 2, wherein,

an auxiliary fan (111) is arranged in the second compartment (102), and the auxiliary fan (111) is positioned on one side of the second heat exchanger (130) far away from the back plate (103) of the second compartment (102).

4. The indoor unit according to claim 3,

the auxiliary fan (111) is an axial flow fan, and the axis of the axial flow fan is perpendicular to the plate surface of the second heat exchanger (130).

5. The indoor unit according to any one of claims 2 to 4,

a gap is left between the second heat exchanger (130) and the bottom plate (104) and/or the top plate of the second chamber (102).

6. The indoor unit according to any one of claims 1 to 4,

the throttling element comprises an electronic expansion valve (131), and the refrigerant flow of the second heat exchanger (130) is adjusted by adjusting the opening degree of the electronic expansion valve (131).

7. The indoor unit according to any one of claims 1 to 4,

the second compartment (102) is located above the first compartment (101); alternatively, the first and second electrodes may be,

the second compartment (102) is located below the first compartment (101).

8. The indoor unit according to any one of claims 1 to 4,

and a heat insulation layer is arranged between the second chamber (102) and the first chamber (101).

9. The indoor unit according to any one of claims 1 to 4, further comprising:

a temperature detector for detecting a temperature within the second compartment (102).

10. An air conditioner characterized by comprising the indoor unit according to any one of claims 1 to 9.

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