Dehumidification assembly and air conditioner

Abstract

The utility model relates to the technical field of household appliances, and discloses a dehumidification assembly which comprises a first heat exchanger, a first expansion valve, a second heat exchanger and a second expansion valve. One end of the first expansion valve communicates with one end of the first heat exchanger; the second heat exchanger comprises a first heat exchange part and a second heat exchange part, the first heat exchange part communicates with the other end of the first expansion valve, and the second heat exchange part communicates with the first heat exchange part through a second expansion valve; under the dehumidification condition, a refrigerant sequentially flows through the first heat exchanger, the first expansion valve, the first heat exchange part, the second expansion valve and the second heat exchange part. According to the dehumidification device, the condensation dehumidification area and the heating heat exchange area can be adjusted so as to adapt to different dehumidification requirements, and the user experience is improved. The utility model further discloses the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of household appliances, for example, to a dehumidification component and an air conditioner. Background Art

[0002] Currently, in a relatively humid indoor environment, furniture, electrical appliances, etc. indoors are prone to being damaged by moisture. Existing air conditioners have a dehumidification function. The indoor air exchanges heat with the evaporator. The evaporator absorbs heat, condenses the water vapor in the air into condensed water, and then discharges the condensed water to the outside through a drain pipe. However, in a relatively humid and cold indoor environment, condensation dehumidification will cause the indoor temperature to drop too quickly.

[0003] There is an air conditioner in the related art, including an indoor unit chassis. A first heat exchanger, an expansion valve, and a second heat exchanger are provided inside the indoor unit chassis. One end of the first heat exchanger is communicated with one end of the expansion valve, and the other end of the second heat exchanger is communicated with the other end of the expansion valve. In the dehumidification mode, the high-temperature and high-pressure liquid refrigerant first flows into the first heat exchanger, releases heat to the outside by the second heat exchanger, and then the refrigerant flows through the first expansion valve to form a low-temperature and low-pressure liquid and flows into the second heat exchanger, and the second heat exchanger absorbs the heat from the outside. The indoor air first flows to the second heat exchanger for condensation dehumidification, and then flows through the first heat exchanger to increase the temperature of the dehumidified air and avoid the indoor temperature from dropping too quickly.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] The heat exchange area for condensation dehumidification and the heat exchange area for heating of the heat exchanger are relatively fixed and cannot be adjusted according to different dehumidification requirements, resulting in poor user experience.

[0006] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments, but rather serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a dehumidification component and an air conditioner, which can adjust the condensation dehumidification area and the heat exchange area for heating to adapt to different dehumidification requirements and improve the user experience.

[0009] In some embodiments, the dehumidification component includes: a first heat exchanger, a first expansion valve, a second heat exchanger, and a second expansion valve. One end of the first expansion valve is communicated with one end of the first heat exchanger; the second heat exchanger includes a first heat exchange part and a second heat exchange part. The first heat exchange part is communicated with the other end of the first expansion valve, and the second heat exchange part is communicated with the first heat exchange part through the second expansion valve; wherein, in the case of dehumidification, the refrigerant flows through the first heat exchanger, the first expansion valve, the first heat exchange part, the second expansion valve, and the second heat exchange part in sequence.

[0010] Optionally, the heat exchange area of the first heat exchange part is less than or equal to the heat exchange area of the second heat exchange part, and greater than or equal to one quarter of the heat exchange area of the second heat exchange part.

[0011] Optionally, the heat exchange area of the first heat exchanger is equal to the heat exchange area of the second heat exchanger.

[0012] Optionally, along the vertical direction, the length of the first heat exchanger is the same as the length of the second heat exchanger.

[0013] Optionally, the second heat exchange part is provided with a first heat exchange area and a second heat exchange area. The first heat exchange area is communicated with the second expansion valve; wherein, the first heat exchange area is communicated with the second heat exchange area through a third expansion valve.

[0014] Optionally, the dehumidification component further includes: a fourth expansion valve and a third heat exchanger. One end of the fourth expansion valve is communicated with the other end of the second heat exchange part opposite to the end communicated with the second expansion valve; the third heat exchanger is communicated with the other end of the fourth expansion valve.

[0015] Optionally, the heat exchange area of the third heat exchanger is equal to the heat exchange area of the first heat exchanger.

[0016] Optionally, the plane where the third heat exchanger is located is parallel to the plane where the second heat exchanger is located.

[0017] In some embodiments, the air conditioner includes: the dehumidification component of the above embodiments.

[0018] Optionally, the air conditioner further includes: an indoor chassis and a controller. The controller is arranged in the indoor chassis and is used to control the first expansion valve and the second expansion valve according to the indoor environmental parameters.

[0019] The dehumidification component and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] In the dehumidification mode, the indoor air flows sequentially to the second heat exchanger and the first heat exchanger, and the refrigerant at high temperature and high pressure flows into the first heat exchanger. When the first expansion valve is fully open, the second expansion valve is in a throttling state. The refrigerant at high temperature and high pressure flows into the first heat exchange part through the first expansion valve, and then becomes a refrigerant at low temperature and low pressure after passing through the second expansion valve and flows into the second heat exchange part. The indoor air is then condensed and dehumidified at the first heat exchange part, and heated at the first heat exchanger and the first heat exchange part. The heating area is larger, better adapting to the situation of lower temperature. When the first expansion valve is in a throttling state, the second expansion valve is fully open. At this time, the refrigerant in the first heat exchange part and the second heat exchange part is in a state of low temperature and low pressure. The indoor air is then condensed and dehumidified at the first heat exchange part and the second heat exchange part, and heated at the first heat exchanger, increasing the temperature of the air after dehumidification. Thus, the condensation dehumidification area and the heating heat exchange area are adjusted to meet different dehumidification requirements and improve the user experience.

[0021] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and among them:

[0023] Figure 1 is a schematic structural diagram of a dehumidification component provided by an embodiment of the present disclosure;

[0024] Figure 2 is a schematic diagram of a state where the first expansion valve is in a throttling state and the second expansion valve is fully open provided by an embodiment of the present disclosure;

[0025] Figure 3 is a schematic diagram of a state where the first expansion valve is fully open and the second expansion valve is in a throttling state provided by an embodiment of the present disclosure;

[0026] Figure 4 is a schematic structural diagram of another dehumidification component provided by an embodiment of the present disclosure;

[0027] Figure 5 is a schematic structural diagram of another dehumidification component provided by an embodiment of the present disclosure;

[0028] Figure 6 is a schematic structural diagram of another dehumidification component provided by an embodiment of the present disclosure;

[0029] Figure 7 is a schematic structural diagram of an air conditioner provided by an embodiment of the present disclosure.

[0030] Reference Numerals:

[0031] 100, First heat exchanger; 200, First expansion valve; 300, Second heat exchanger; 310, First heat exchange part; 320, Second heat exchange part; 321, First heat exchange area; 322, Second heat exchange area; 323, Third expansion valve; 400, Second expansion valve; 500, Fourth expansion valve; 600, Third heat exchanger; 710, Indoor chassis; 720, Controller. Detailed implementation manners

[0032] In order to be able to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The attached drawings are only for reference and explanation purposes and are not used to limit the embodiments of the present disclosure. In the following technical descriptions, for the sake of explanation, multiple details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0033] In the embodiments of the present disclosure, terms such as "first" and "second" in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0034] In the embodiments of the present disclosure, the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0035] In addition, the terms "arranged", "connected" and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0036] Unless otherwise specified, the term "plurality" means two or more.

[0037] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments can be combined with each other.

[0038] Combined with Figures 1 - 3 As shown, the embodiment of the present disclosure provides a dehumidification component, including: a first heat exchanger 100, a first expansion valve 200, a second heat exchanger 300, and a second expansion valve 400. One end of the first expansion valve 200 is communicated with one end of the first heat exchanger 100; the second heat exchanger 300 includes a first heat exchange part 310 and a second heat exchange part 320. The first heat exchange part 310 is communicated with the other end of the first expansion valve 200, and the second heat exchange part 320 is communicated with the first heat exchange part 310 through the second expansion valve 400; wherein, in the case of dehumidification, the refrigerant flows through the first heat exchanger 100, the first expansion valve 200, the first heat exchange part 310, the second expansion valve 400, and the second heat exchange part 320 in sequence.

[0039] Using the dehumidification component provided by the embodiment of the present disclosure, in the dehumidification mode, the indoor air flows to the second heat exchanger 300 and the first heat exchanger 100 in sequence, and the high-temperature and high-pressure refrigerant flows into the first heat exchanger 100. When the first expansion valve 200 is fully opened, the second expansion valve 400 is in a throttling state. The high-temperature and high-pressure refrigerant flows into the first heat exchange part 310 through the first expansion valve 200, and then becomes a low-temperature and low-pressure refrigerant after passing through the second expansion valve 400 and flows into the second heat exchange part 320. The indoor air is then condensed and dehumidified at the first heat exchange part 310 and heated at the first heat exchanger 100 and the first heat exchange part 310, with a larger heating area, better adapting to the situation of lower temperature. When the first expansion valve 200 is in a throttling state, the second expansion valve 400 is fully opened. At this time, the refrigerant in the first heat exchange part 310 and the second heat exchange part 320 is in a low-temperature and low-pressure state. The indoor air is then condensed and dehumidified at the first heat exchange part 310 and the second heat exchange part 320 and heated at the first heat exchanger 100, increasing the temperature of the air after dehumidification. Thus, the condensation dehumidification area and the heating heat exchange area are adjusted to meet different dehumidification requirements and improve the user experience.

[0040] It can be understood that by adjusting the states of the first expansion valve 200 and the second expansion valve 400, the first heat exchange part 310 can be adjusted to a heating mode or a condensation dehumidification mode.

[0041] It can be understood that the first expansion valve 200 is an electromagnetic throttle valve, which can accurately control the amount of refrigerant passing through. Similarly, the second expansion valve 400 is also an electromagnetic throttle valve.

[0042] Specifically, the first heat exchange part 310 and the second heat exchange part 320 are located on the same plane. In this way, the first heat exchange part 310 and the second heat exchange part 320 are relatively flat, which can reduce the space occupation. Moreover, there will be no occlusion or overlap between the first heat exchange part 310 and the second heat exchange part 320.

[0043] Optionally, the heat exchange area of the first heat exchange part 310 is less than or equal to the heat exchange area of the second heat exchange part 320 and greater than or equal to one-fourth of the heat exchange area of the second heat exchange part 320. In this way, when the heat exchange area of the first heat exchange part 310 is larger than the heat exchange area of the second heat exchange part 320, the heat exchange area of the second heat exchange part 320 is too small. The first expansion valve 200 is fully opened and the second expansion valve 400 is in a throttling state. The indoor air is condensed and dehumidified at the second heat exchange part 320, and the dehumidification effect is poor and the time consumed is long. When the heat exchange area of the first heat exchange part 310 is less than one-fourth of the heat exchange area of the second heat exchange part 320, the area of the first heat exchange part 310 is small. The first heat exchange part 310 switches between the heating state and the condensation dehumidification mode. Due to its small heat exchange area, the effect improvement after changing the mode is small. It can be seen that the range where the heat exchange area of the first heat exchange part 310 is less than or equal to the heat exchange area of the second heat exchange part 320 and greater than or equal to one-fourth of the heat exchange area of the second heat exchange part 320 is relatively reasonable. The area distribution of the second heat exchange part 320 and the first heat exchange part 310 is relatively reasonable, ensuring the dehumidification effect when the first expansion valve 200 is fully opened and the second expansion valve 400 is in a throttling state; the first heat exchange part 310 switches between the heating state and the condensation dehumidification mode, and the effect improvement after changing the mode is relatively large.

[0044] Specifically, the heat exchange area of the first heat exchange part 310 is equal to one-third of the heat exchange area of the second heat exchange part 320.

[0045] It can be understood that the heat exchange area of the first heat exchange part 310 can be flexibly adjusted according to the region where the air conditioner is used. For example, the more humid and cold the place is, the larger the heat exchange area of the first heat exchange part 310 is set, and the better the effect of reheating the temperature after dehumidification is.

[0046] Optionally, the heat exchange area of the first heat exchanger 100 is equal to the heat exchange area of the second heat exchanger 300. In this way, when the first expansion valve 200 is in a throttling state and the second expansion valve 400 is fully opened, the first heat exchange part 310 is in the dehumidification mode, and the heat exchange area for the indoor air to be condensed and dehumidified is the same as the heat exchange area for reheating after condensation, avoiding too rapid a temperature drop of the indoor air after dehumidification; when the first expansion valve 200 is fully opened and the second expansion valve 400 is in a throttling state, the first heat exchange part 310 is in the heating mode, and the heat exchange area for the indoor air to be condensed and dehumidified is smaller than the heat exchange area for reheating after condensation, enabling the indoor air to maintain a constant temperature or increase in temperature after dehumidification, improving the user experience.

[0047] Optionally, in the vertical direction, the length of the first heat exchanger 100 is the same as that of the second heat exchanger 300. In this way, it is convenient for the first heat exchanger 100 and the second heat exchanger 300 to be better installed in the chassis of the indoor unit of the air conditioner.

[0048] Combined with Figure 4 As shown, optionally, the second heat exchange part 320 is provided with a first heat exchange area 321 and a second heat exchange area 322. The first heat exchange area 321 is communicated with the second expansion valve 400; wherein, the first heat exchange area 321 and the second heat exchange area 322 are communicated through a third expansion valve 323. In this way, the first expansion valve 200 is fully opened, the second expansion valve 400 is fully opened, the third expansion valve 323 is in a throttling state, the indoor air is heated at the first heat exchanger 100, the first heat exchange part 310 and the first heat exchange area 321, and is condensed and dehumidified at the second heat exchange area 322. After the indoor humidity drops, condensation can be maintained and the indoor temperature can be quickly increased. Moreover, the adjustment of the heat exchange area for heating and the heat exchange area for dehumidification can be controlled more accurately to better meet different dehumidification requirements.

[0049] It can be understood that the third expansion valve 323 is an electromagnetic throttle valve.

[0050] Combined with Figure 5 As shown, optionally, the dehumidification component further includes: a fourth expansion valve 500 and a third heat exchanger 600. One end of the fourth expansion valve 500 is communicated with the other end of the second heat exchange part 320 opposite to the end communicated with the second expansion valve 400; the third heat exchanger 600 is communicated with the other end of the fourth expansion valve 500. In this way, the first expansion valve 200 is fully opened, the second expansion valve 400 is fully opened, the fourth expansion valve 500 is in a throttling state, then the indoor air is heated at the first heat exchanger 100 and the second heat exchanger 300, and is condensed and dehumidified at the third heat exchanger 600. The heating area is larger, and the indoor temperature can be quickly increased after the indoor air is dehumidified. The first expansion valve 200 is fully opened, the second expansion valve 400 is in a throttling state, and the fourth expansion valve 500 is fully opened, then the condensation and dehumidification area is larger, the indoor humidity can be quickly reduced, and at the same time, the indoor temperature is prevented from dropping too fast.

[0051] It can be understood that the fourth expansion valve 500 is an electromagnetic throttle valve.

[0052] Optionally, the third heat exchanger 600, the second heat exchanger 300 and the first heat exchanger 100 are arranged in sequence along the air flow direction. In this way, the indoor air flows towards the third heat exchanger 600, the second heat exchanger 300 and the first heat exchanger 100 in sequence, realizing first condensation and dehumidification, and then heating the dehumidified air, and preventing the indoor temperature from dropping too fast.

[0053] Combined withFigure 6 As shown, specifically, one end of the fourth expansion valve 500 communicates with the second heat exchange area 322.

[0054] Optionally, the heat exchange area of the third heat exchanger 600 is equal to the heat exchange area of the first heat exchanger 100. In this way, the areas of the first heat exchanger 100, the second heat exchanger 300, and the third heat exchanger 600 are the same. When dehumidifying in the third heat exchanger 600 and heating in the first heat exchanger 100 and the second heat exchanger 300, the indoor air can be dehumidified while the indoor temperature can be increased, improving the indoor comfort. When dehumidifying in the third heat exchanger 600 and the second heat exchanger 300 and heating in the first heat exchanger 100, the heat exchange area for dehumidification is larger, the dehumidification effect is better, and at the same time, the indoor temperature can be prevented from dropping too fast.

[0055] Optionally, the plane where the third heat exchanger 600 is located is parallel to the plane where the second heat exchanger 300 is located. In this way, the distance between the third heat exchanger 600 and the second heat exchanger 300 is relatively uniform, avoiding the mutual interference of the temperatures between the two due to the too-close local distance between the third heat exchanger 600 and the second heat exchanger 300.

[0056] In some embodiments, the air conditioner includes the dehumidification component of the above embodiments.

[0057] Using the refrigerator provided by the embodiments of the present disclosure, since the refrigerator includes the dehumidification component of the above embodiments, in the dehumidification mode, the indoor air flows to the second heat exchanger 300 and the first heat exchanger 100 in sequence, and the high-temperature and high-pressure refrigerant flows into the first heat exchanger 100. When the first expansion valve 200 is fully opened, the second expansion valve 400 is in a throttling state. The high-temperature and high-pressure refrigerant flows into the first heat exchange part 310 through the first expansion valve 200, and then becomes a low-temperature and low-pressure refrigerant after passing through the second expansion valve 400 and flows into the second heat exchange part 320. The indoor air is then condensed and dehumidified at the first heat exchange part 310 and heated at the first heat exchanger 100 and the first heat exchange part 310, and the heating area is larger, better adapting to the situation of lower temperature. When the first expansion valve 200 is in a throttling state, the second expansion valve 400 is fully opened. At this time, the refrigerant in the first heat exchange part 310 and the second heat exchange part 320 is in a low-temperature and low-pressure state. The indoor air is then condensed and dehumidified at the first heat exchange part 310 and the second heat exchange part 320 and heated at the first heat exchanger 100, increasing the temperature of the dehumidified air. Thus, the condensation dehumidification area and the heating heat exchange area can be adjusted to adapt to different dehumidification requirements and improve the user experience.

[0058] Combined with Figure 7As shown, optionally, the air conditioner further includes an indoor chassis 710 and a controller 720. The controller 720 is disposed inside the indoor chassis 710 and is configured to control the first expansion valve 200 and the second expansion valve 400 according to the indoor environmental parameters. In this way, the controller 720 controls the operating states of the first expansion valve 200 and the second expansion valve 400 according to the indoor environmental parameters, thereby adjusting the first heat exchange area 321 to a condensation dehumidification mode or a heating mode to meet different dehumidification requirements.

[0059] It can be understood that controlling the first expansion valve 200 means controlling the first expansion valve 200 to be fully opened or controlling the first expansion valve 200 to be in a throttling state. Controlling the second expansion valve 400 means controlling the second expansion valve 400 to be fully opened or controlling the second expansion valve 400 to be in a throttling state.

[0060] Optionally, the controller 720 controls the first expansion valve 200 and the second expansion valve 400 according to the indoor environmental parameters, including: the controller 720 controls the first expansion valve 200 and the second expansion valve 400 according to the magnitude relationship between the indoor temperature and the first preset temperature. In this way, when the indoor temperature is greater than the first preset temperature, it indicates that the indoor temperature is relatively high, then the controller 720 controls the first expansion valve 200 to be in a throttling state and the second expansion valve 400 to be fully opened, and the indoor air is condensed and dehumidified at the second heat exchanger 300 and reheated at the first heat exchanger 100 to prevent the indoor temperature from dropping rapidly. When the indoor temperature is less than or equal to the first preset temperature, it indicates that the indoor temperature is relatively low, then the controller 720 controls the first expansion valve 200 to be fully opened and the second expansion valve 400 to be in a throttling state, so that the indoor air is heated at the first heat exchange part 310, increasing the heat exchange area for heating and preventing the indoor temperature from dropping rapidly.

[0061] It can be understood that the indoor temperature is obtained by setting a temperature sensor inside the indoor unit.

[0062] Optionally, the first preset temperature is 18 °C.

[0063] Optionally, the controller 720 controls the first expansion valve 200 and the second expansion valve 400 according to the relationship between the indoor temperature and the first preset temperature, including: when the indoor temperature is greater than the first preset temperature, the controller 720 controls the first expansion valve 200 to be in a throttling state and controls the second expansion valve 400 to be fully opened; when the indoor temperature is less than or equal to the first preset temperature, the controller 720 controls the first expansion valve 200 and the second expansion valve 400 according to the relationship between the indoor humidity and the first preset humidity. In this way, when the indoor temperature is greater than the first preset temperature, it indicates that the indoor temperature is relatively high. Then the controller 720 controls the first expansion valve 200 to be in a throttling state and the second expansion valve 400 to be fully opened. The indoor air is condensed and dehumidified at the second heat exchanger 300 and reheated at the first heat exchanger 100, avoiding a rapid drop in the indoor temperature. When the indoor temperature is less than or equal to the first preset temperature and the indoor humidity is greater than or equal to the first preset humidity, it indicates that the indoor environment is relatively wet and cold. Control the first expansion valve 200 to be in a throttling state and control the second expansion valve 400 to be fully opened. Condense and dehumidify by the first heat exchange part 310 and the second heat exchange part 320 to reduce the indoor humidity at a faster speed, and heat the first heat exchanger 100 to avoid a rapid drop in the indoor temperature. When the indoor temperature is less than or equal to the first preset temperature and the indoor humidity is less than the first preset humidity, it indicates that the indoor environment is relatively dry and cold. Control the first expansion valve 200 to be fully opened and control the second expansion valve 400 to be in a throttling state. The first heat exchange part 310 is in a heat exchange state, increasing the heat exchange area for heating, ensuring the dehumidification effect while avoiding a rapid drop in the indoor temperature.

[0064] Optionally, the controller 720 controls the first expansion valve 200 and the second expansion valve 400 according to the relationship between the indoor humidity and the first preset humidity, including: when the indoor humidity is greater than or equal to the first preset humidity, control the first expansion valve 200 to be in a throttling state and control the second expansion valve 400 to be fully opened; when the indoor humidity is less than the first preset humidity, control the first expansion valve 200 to be fully opened and control the second expansion valve 400 to be in a throttling state. In this way, when the indoor humidity is greater than or equal to the first preset humidity, it indicates that the indoor environment is relatively wet and cold. Control the first expansion valve 200 to be in a throttling state and control the second expansion valve 400 to be fully opened. Condense and dehumidify by the first heat exchange part 310 and the second heat exchange part 320 to reduce the indoor humidity at a faster speed, and heat the first heat exchanger 100 to avoid a rapid drop in the indoor temperature. When the indoor humidity is less than the first preset humidity, it indicates that the indoor environment is relatively dry and cold. Control the first expansion valve 200 to be fully opened and control the second expansion valve 400 to be in a throttling state. The first heat exchange part 310 is in a heat exchange state, increasing the heat exchange area for heating, ensuring the dehumidification effect while avoiding a rapid drop in the indoor temperature.

[0065] It is understandable that by setting a humidity sensor in the indoor unit, the humidity inside the room can be obtained.

[0066] Optionally, the first preset humidity is 55% RH.

[0067] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. Embodiments merely represent possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.

Claims

1. A dehumidification component, characterized in that: include: A first heat exchanger (100); A first expansion valve (200), one end of which is in communication with one end of the first heat exchanger (100); The second heat exchanger (300) comprises a first heat exchange part (310) and a second heat exchange part (320), wherein the first heat exchange part (310) is connected to the other end of the first expansion valve (200), and the second heat exchange part (320) is connected to the first heat exchange part (310) via the second expansion valve (400); In the case of dehumidification, the refrigerant flows sequentially through the first heat exchanger (100), the first expansion valve (200), the first heat exchange part (310), the second expansion valve (400) and the second heat exchange part (320).

2. The dehumidification assembly according to claim 1, characterized in that: The heat exchange area of ​​the first heat exchange part (310) is less than or equal to the heat exchange area of ​​the second heat exchange part (320), and is greater than or equal to one quarter of the heat exchange area of ​​the second heat exchange part (320).

3. The dehumidification assembly according to claim 1, characterized in that: The heat exchange area of ​​the first heat exchanger (100) is equal to the heat exchange area of ​​the second heat exchanger (300).

4. The dehumidification assembly according to claim 1, characterized in that: In the vertical direction, the length of the first heat exchanger (100) is the same as the length of the second heat exchanger (300).

5. The dehumidification assembly according to claim 1, characterized in that: The second heat exchange section (320) is provided with a first heat exchange area (321) and a second heat exchange area (322), and the first heat exchange area (321) is connected to the second expansion valve (400); wherein the first heat exchange area (321) and the second heat exchange area (322) are connected via a third expansion valve (323).

6. The dehumidification assembly according to claim 1, characterized in that: Also includes: A fourth expansion valve (500) having one end in communication with the other end of the second heat exchange portion (320) opposite to the end in communication with the second expansion valve (400); The third heat exchanger (600) is communicated with the other end of the fourth expansion valve (500).

7. The dehumidification assembly according to claim 6, characterized in that: The heat exchange area of ​​the third heat exchanger (600) is equal to the heat exchange area of ​​the first heat exchanger (100).

8. The dehumidification assembly according to claim 1, characterized in that: The plane where the third heat exchanger (600) is located is parallel to the plane where the second heat exchanger (300) is located.

9. An air conditioner, characterized in that: Comprising the dehumidification component as described in any one of claims 1 to 8.

10. The air conditioner according to claim 9, characterized in that: Also includes: Indoor chassis (710); The controller (720) is disposed in the indoor cabinet (710) and is used to control the first expansion valve (200) and the second expansion valve (400) according to indoor environmental parameters.

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