Air conditioner indoor unit and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and discloses an air conditioner indoor unit which comprises a dehumidification heat exchanger set comprising a first dehumidification heat exchanger and a second dehumidification heat exchanger which are arranged in parallel, the first dehumidification heat exchanger comprises a first port, and the second dehumidification heat exchanger comprises a second port; the reheating heat exchanger is communicated with a first port of the first dehumidification heat exchanger and a second port of the second dehumidification heat exchanger; and the communicating pipeline communicates the reheating heat exchanger with a first port of the first dehumidification heat exchanger and a second port of the second dehumidification heat exchanger, and the communicating pipeline is provided with a first throttling assembly. According to the air conditioner indoor unit provided by the embodiment of the utility model, the pipeline connection of the reheating and dehumidifying air conditioner is simplified. The invention further discloses an air conditioner comprising the air conditioner indoor unit.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, for example, to an air conditioning indoor unit and an air conditioner. Background Art

[0002] The air conditioner can operate in cooling mode, heating mode or dehumidification mode. In order to meet the dehumidification demand, the evaporation temperature of the air conditioner is usually lower than the return air dew point temperature to achieve dehumidification of the user's indoor environment. At present, the air conditioner dehumidifies the user's indoor environment by operating in cooling mode. However, this dehumidification mode reduces the temperature of the user's indoor environment while adjusting the humidity of the user's indoor environment.

[0003] In order to avoid lowering the user's indoor environment temperature during dehumidification, existing air conditioners usually set up two indoor heat exchangers in the same room, and both of these indoor heat exchangers are connected to the compressor or four-way valve in the air conditioner outdoor unit. When the user needs to dehumidify, one of the indoor heat exchangers acts as an evaporator to dehumidify, and the other indoor heat exchanger acts as a condenser to heat. In this way, the air blown into the user's room after dehumidification is reheated air, and the air conditioner does not lower the temperature of the indoor environment when dehumidifying the user's room, achieving reheat dehumidification.

[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] As mentioned above, in the existing air conditioner that realizes reheat dehumidification, two indoor heat exchangers need to be set in the same room, and both of these indoor heat exchangers are connected to the compressor or four-way valve of the air conditioner outdoor unit, and need to be connected to the outdoor heat exchanger. This type of connected air conditioner is also called a three-pipe air conditioner. The pipe connection of the entire air conditioning system is very complicated and occupies a large installation space.

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

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] An embodiment of the present disclosure provides an air-conditioning indoor unit, comprising: a dehumidification heat exchanger group, comprising a first dehumidification heat exchanger and a second dehumidification heat exchanger arranged in parallel, wherein the first dehumidification heat exchanger comprises a first port, and the second dehumidification heat exchanger comprises a second port; a reheat heat exchanger, connected to the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger; and a connecting pipe, connecting the reheat heat exchanger with the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger, wherein the connecting pipe is provided with a first throttling component.

[0009] In some optional embodiments, the connecting pipeline includes a first connecting end and a second connecting end relative to each other, wherein the first connecting end is connected to the reheat heat exchanger, and the second connecting end is provided with an electromagnetic three-way valve connected to the first port and the second port.

[0010] In some optional embodiments, the first throttling assembly includes a first valve component pipeline and a second valve component pipeline arranged in parallel, wherein the first valve component pipeline includes a first solenoid valve, and the second valve component pipeline includes a second solenoid valve and a first throttling valve arranged in series.

[0011] In some optional embodiments, the heat exchange area of ​​the first dehumidification heat exchanger is larger than the heat exchange area of ​​the second dehumidification heat exchanger.

[0012] In some optional embodiments, a first dehumidification connecting pipeline is connected between the first port of the first dehumidification heat exchanger and the electromagnetic three-way valve, and a second dehumidification connecting pipeline is connected between the second port of the second dehumidification heat exchanger and the electromagnetic three-way valve, wherein the first dehumidification connecting pipeline is provided with a second throttling component, and the second dehumidification connecting pipeline is provided with a third throttling component.

[0013] In some optional embodiments, the second throttling assembly includes a third valve component pipeline and a fourth valve component pipeline arranged in parallel, wherein the third valve component pipeline includes a third solenoid valve, and the fourth valve component pipeline includes a fourth solenoid valve and a first capillary arranged in series; the third throttling assembly includes a fifth valve component pipeline and a sixth valve component pipeline arranged in parallel, wherein the fifth valve component pipeline includes a fifth solenoid valve, and the sixth valve component pipeline includes a sixth solenoid valve and a second capillary arranged in series.

[0014] In some optional embodiments, the length of the first capillary tube is greater than or equal to the length of the second capillary tube.

[0015] In some optional embodiments, the reheat heat exchanger, the first dehumidification heat exchanger and the second dehumidification heat exchanger are arranged side by side in sequence, and the distance between the reheat heat exchanger and the first dehumidification heat exchanger is a first distance, and the distance between the first dehumidification heat exchanger and the second dehumidification heat exchanger is a second distance, wherein the first distance is greater than the second distance.

[0016] In some optional embodiments, the air conditioner indoor unit further includes: a shell provided with an air outlet, wherein the reheat heat exchanger is arranged close to the air outlet.

[0017] An embodiment of the present disclosure provides an air conditioner, comprising an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner outdoor unit is provided with a compressor, a four-way valve and an outdoor heat exchanger, the air conditioner indoor unit is provided with a dehumidification heat exchanger group, a reheat heat exchanger and a connecting pipe, and the dehumidification heat exchanger group is connected to the outdoor heat exchanger, and the reheat heat exchanger is connected to the compressor, wherein the air conditioner indoor unit is the air conditioner indoor unit as described above.

[0018] The air conditioner indoor unit and the air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0019] The air conditioner indoor unit provided in the embodiment of the present disclosure includes a dehumidification heat exchanger group, a reheat heat exchanger and a connecting pipeline. The dehumidification heat exchanger group includes a first dehumidification heat exchanger and a second dehumidification heat exchanger connected in parallel, the first dehumidification heat exchanger includes a first port, the second dehumidification heat exchanger includes a second port, and the reheat heat exchanger is connected to the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger. The connecting pipeline connects the reheat heat exchanger to the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger. In addition, a first throttling component is provided on the connecting pipeline.

[0020] In the air-conditioning indoor unit provided in the embodiment of the present disclosure, a connecting pipe is used to connect the dehumidification heat exchanger group and the reheat heat exchanger, so that the dehumidification heat exchanger group and the reheat heat exchanger are connected as a whole. When connected to the air-conditioning outdoor unit, it only needs to be connected to the outdoor heat exchanger and the compressor of the air-conditioning outdoor unit, that is, the air-conditioner provided in the embodiment of the present disclosure is a two-pipe air-conditioner.

[0021] Furthermore, a first throttling component is provided on the connecting pipeline. When the air conditioner is in dehumidification mode, the exhaust gas of the compressor enters the reheat heat exchanger from the gas pipeline. The high-temperature and high-pressure superheated refrigerant condenses in the reheat heat exchanger to become a supercooled liquid phase, and then passes through the first throttling component to become a low-temperature and low-pressure two-phase state, and then enters the dehumidification heat exchanger group to evaporate and absorb heat. The evaporation temperature of the dehumidification heat exchanger group is lower than the dew point temperature of the incoming air, so that the incoming air at the air inlet of the indoor unit of the air conditioner passes through the dehumidification heat exchanger group for condensation and dehumidification, and then passes through the reheat heat exchanger to heat up and realize the reheat dehumidification function. After heat exchange through the dehumidification heat exchanger group, the two-phase refrigerant enters the outdoor heat exchanger to continue evaporation and then returns to the compressor to complete the cycle.

[0022] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Devices with the same reference numerals in the drawings are shown as similar devices, and the drawings do not constitute a scale limitation, and wherein:

[0024] Figure 1 is a schematic diagram of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0025] Figure 2 is a schematic diagram of another air conditioner indoor unit provided by an embodiment of the present disclosure;

[0026] Figure 3 is a schematic diagram of another air conditioner indoor unit provided by an embodiment of the present disclosure;

[0027] Figure 4 is a schematic diagram of a refrigerant flow path in a cooling mode of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0028] Figure 5 is a schematic diagram of a refrigerant flow path in a heating mode of an air-conditioning indoor unit provided by an embodiment of the present disclosure;

[0029] Figure 6 It is a schematic diagram of the refrigerant flow path of a reheat dehumidification mode of an air-conditioning indoor unit provided in an embodiment of the present disclosure.

[0030] Reference numerals:

[0031] 101: gas pipeline; 102: liquid pipeline;

[0032] 11: the first dehumidification heat exchanger;

[0033] 111: third solenoid valve; 112: fourth solenoid valve; 113: first capillary tube;

[0034] 12: Second dehumidification heat exchanger;

[0035] 121: fifth solenoid valve; 122: sixth solenoid valve; 123: second capillary tube;

[0036] 21: Reheat heat exchanger;

[0037] 3: connecting pipeline; 31: first throttling component; 32: electromagnetic three-way valve;

[0038] 311: first solenoid valve; 312: second solenoid valve; 313: first throttle valve. DETAILED DESCRIPTION

[0039] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0040] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, components or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. 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.

[0042] In addition, the terms "disposed", "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 a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, 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 the specific circumstances.

[0043] Unless otherwise stated, the term "plurality" means two or more.

[0044] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0045] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0046] Existing air conditioners need to be equipped with two indoor heat exchangers to achieve the reheating and dehumidification effect. Moreover, the connection between these two indoor heat exchangers and the outdoor unit of the air conditioner is generally that one end of one indoor heat exchanger is connected to the compressor of the outdoor unit of the air conditioner, and one end of the other indoor heat exchanger is connected to the four-way valve of the outdoor unit of the air conditioner, and the other ends of the two indoor heat exchangers are connected to the outdoor heat exchanger of the outdoor unit of the air conditioner. It can be seen that in the entire air conditioner, three connecting pipes are required to connect the indoor unit of the air conditioner with the outdoor unit of the air conditioner, that is, a three-pipe air conditioner. The pipe connection of this air conditioner is relatively complicated and occupies a large installation space.

[0047] The disclosed embodiment provides an air-conditioning indoor unit, so that the air-conditioning outdoor unit and the air-conditioning indoor unit of the entire air-conditioning system can achieve the reheat and dehumidification function of the air-conditioning system by only using two connecting pipes, thereby simplifying the pipe connection of the reheat and dehumidification air-conditioning system and reducing the space occupied by the installation.

[0048] The air conditioner indoor unit provided in the embodiment of the present disclosure includes a dehumidification heat exchanger group, a reheat heat exchanger 21 and a connecting pipe 3. The dehumidification heat exchanger group includes a first dehumidification heat exchanger 11 and a second dehumidification heat exchanger 12 arranged in parallel, wherein the first dehumidification heat exchanger 11 includes a first port, and the second dehumidification heat exchanger 12 includes a second port. The reheat heat exchanger 21 is connected to the first port of the first dehumidification heat exchanger 11 and the second port of the second dehumidification heat exchanger 12. The connecting pipe 3 connects the reheat heat exchanger 21 with the first port of the first dehumidification heat exchanger 11 and the second port of the second dehumidification heat exchanger 12. Among them, the connecting pipe 3 is provided with a first throttling component 31.

[0049] In the air conditioner indoor unit provided in the embodiment of the present disclosure, the dehumidification heat exchanger group is connected to the reheat heat exchanger 21 through the connecting pipe 3. The refrigerant flow path of the air conditioner indoor unit provided in the embodiment of the present disclosure when operating in the reheat dehumidification mode is:

[0050] The first throttling component 31 is controlled to play the throttling function, and the gaseous refrigerant discharged from the compressor enters the reheat heat exchanger 21 from the gas pipeline 101. At this time, the reheat heat exchanger 21 acts as a condenser, and the high-temperature and high-pressure superheated refrigerant condenses in the reheat heat exchanger 21 to become a supercooled liquid phase, and then changes to a low-temperature and low-pressure two-phase state after the throttling effect of the first throttling component 31, and then enters the dehumidification heat exchanger group for evaporation and heat absorption. At this time, the dehumidification heat exchanger group acts as an evaporator. The evaporation temperature of the dehumidification heat exchanger group is lower than the dew point temperature of the incoming air, so that the incoming air passes through the dehumidification heat exchanger group for condensation and dehumidification, and then passes through the reheat heat exchanger 21 for heating and temperature rise to achieve the reheat dehumidification function. After heat exchange through the dehumidification heat exchanger group, the two-phase refrigerant enters the outdoor heat exchanger to continue evaporation and then returns to the compressor, completing a refrigerant cycle.

[0051] The refrigerant flow path of the air conditioner indoor unit provided in the embodiment of the present disclosure when operating in the cooling mode is:

[0052] The first throttling component 31 is controlled not to play a throttling role, and the first dehumidification heat exchanger 11, the second dehumidification heat exchanger 12 and the reheat heat exchanger 21 are all evaporators. The high-temperature and high-pressure subcooled liquid refrigerant flowing out of the outdoor heat exchanger is throttled by the electronic expansion valve to become a low-pressure two-phase fluid, and enters the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 respectively, and enters the reheat heat exchanger 21 through the connecting pipe 3 to continue evaporation and heat exchange, and then returns to the suction port of the compressor from the gas pipeline 101. Figure 4 shown.

[0053] The refrigerant flow path of the air conditioner indoor unit provided in the embodiment of the present disclosure when operating in the heating mode is:

[0054] The first throttling component 31 is controlled not to play a throttling role, and the first dehumidification heat exchanger 11, the second dehumidification heat exchanger 12 and the reheat heat exchanger 21 are all condensers. The compressor exhaust enters the reheat heat exchanger 21 from the gas pipeline 101, and the high-temperature and high-pressure superheated refrigerant condenses in the reheat heat exchanger 21, and then enters the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 respectively. The refrigerant continues to condense in the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, and after flowing out of the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, it merges all the way back to the outdoor heat exchanger for evaporation and heat absorption, completing a refrigerant cycle. Figure 5 shown.

[0055] Optionally, the first dehumidification heat exchanger 11, the second dehumidification heat exchanger 12 and the reheat heat exchanger 21 are all tube-fin heat exchangers, and the first dehumidification heat exchanger 11, the second dehumidification heat exchanger 12 and the reheat heat exchanger 21 are of equal length.

[0056] Optionally, the reheat heat exchanger 21, the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 are arranged in sequence in the housing of the air conditioner indoor unit, and the wind passes through the second dehumidification heat exchanger 12, the first dehumidification heat exchanger 11 and the reheat heat exchanger 21 in sequence. It can be understood that Figure 1 The arrows in the figure indicate the direction of wind flow.

[0057] Optionally, the connecting pipeline 3 includes a first connecting end and a second connecting end opposite to each other, wherein the first connecting end is connected to the reheat heat exchanger 21, and the second connecting end is provided with an electromagnetic three-way valve 32 connected to the first port and the second port.

[0058] When the heat exchange area of ​​the first dehumidification heat exchanger 11 is larger than the heat exchange area of ​​the second dehumidification heat exchanger 12, different gears of reheat dehumidification can be achieved by controlling the conduction state of the electromagnetic three-way valve 32. For example, when the electromagnetic three-way valve 32 is controlled to be connected only to the first dehumidification heat exchanger 11, it is a first gear of heating dehumidification, and the temperature rise is relatively low, such as Figure 6 As shown; when the electromagnetic three-way valve 32 is controlled to be connected only to the second dehumidification heat exchanger 12, it is the second-speed heating dehumidification with a higher temperature; when the electromagnetic three-way valve 32 is controlled to be connected to both the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, it is the constant temperature dehumidification, the air inlet and outlet temperatures of the air conditioner indoor unit remain unchanged, and the humidity is reduced.

[0059] Optionally, the first throttling assembly 31 includes a first valve component pipeline and a second valve component pipeline arranged in parallel, wherein the first valve component pipeline includes a first solenoid valve 311, and the second valve component pipeline includes a second solenoid valve 312 and a first throttling valve 313 arranged in series.

[0060] like Figure 2 As shown, the first throttling assembly 31 includes two valve component pipelines arranged in parallel, wherein the first valve component pipeline includes a first solenoid valve 311, and the second valve component pipeline includes a second solenoid valve 312 and a first throttling valve 313 arranged in series. When the air conditioner operates in cooling mode or heating mode, the first solenoid valve 311 is controlled to be opened and the second solenoid valve 312 is closed, so that the first throttling valve 313 does not play a throttling role. When the air conditioner operates in reheat dehumidification mode, the first solenoid valve 311 is controlled to be closed and the second solenoid valve 312 is opened, so that the first throttling valve 313 plays a throttling role. Optionally, the outlet air temperature in the reheat dehumidification mode can be further adjusted by adjusting the opening size of the first throttling valve 313.

[0061] Optionally, the heat exchange area of ​​the first dehumidification heat exchanger 11 is larger than the heat exchange area of ​​the second dehumidification heat exchanger 12 .

[0062] The heat exchange area of ​​the first dehumidification heat exchanger 11 is larger than the heat exchange area of ​​the second dehumidification heat exchanger 12, so that the air conditioner can achieve different levels of heating and dehumidification when running in the reheat dehumidification mode. Optionally, the heat exchange area of ​​the reheat heat exchanger 21 is larger than the heat exchange area of ​​the first dehumidification heat exchanger 11.

[0063] Optionally, a first dehumidification connecting pipeline is connected between the first port of the first dehumidification heat exchanger 11 and the electromagnetic three-way valve 32, and a second dehumidification connecting pipeline is connected between the second port of the second dehumidification heat exchanger 12 and the electromagnetic three-way valve 32, wherein the first dehumidification connecting pipeline is provided with a second throttling component, and the second dehumidification connecting pipeline is provided with a third throttling component.

[0064] The first dehumidification connecting pipe is provided with a second throttling component, and the second dehumidification connecting pipe is provided with a third throttling component. When the air conditioner operates in the reheat dehumidification mode, the humidity adjustment capacity and the air outlet temperature of the entire air conditioner in the reheat dehumidification mode can be controlled by adjusting the throttling effect of the first throttling component 31, the second throttling component and the third throttling component.

[0065] Optionally, the second throttling component includes a third valve component pipeline and a fourth valve component pipeline arranged in parallel, wherein the third valve component pipeline includes a third solenoid valve 111, and the fourth valve component pipeline includes a fourth solenoid valve 112 and a first capillary 113 arranged in series; the third throttling component includes a fifth valve component pipeline and a sixth valve component pipeline arranged in parallel, wherein the fifth valve component pipeline includes a fifth solenoid valve 121, and the sixth valve component pipeline includes a sixth solenoid valve 122 and a second capillary 123 arranged in series.

[0066] The second throttling assembly includes a third valve component pipeline and a fourth valve component pipeline which are arranged in parallel, and the third throttling assembly includes a fifth valve component pipeline and a sixth valve component pipeline which are arranged in parallel. When the air conditioner operates in a cooling mode or a heating mode, the third solenoid valve 111 and the fifth solenoid valve 121 are controlled to be turned on, and the fourth solenoid valve 112 and the sixth solenoid valve 122 are closed, so that the first capillary tube 113 and the second capillary tube 123 do not play a throttling role.

[0067] When the air conditioner is in the reheat dehumidification mode, the third solenoid valve 111 and the fifth solenoid valve 121 are controlled to be closed. The fourth solenoid valve 112 can be selectively controlled to be turned on, so that the first capillary tube 113 plays a throttling role, and the opening of the first throttle valve 313 can be further adjusted so that the refrigerant flowing out of the reheat heat exchanger 21 passes through the throttling effect of the first throttle valve 313 and the first capillary tube 113 in sequence, and then enters the first dehumidification heat exchanger 11 for dehumidification; and / or, the sixth solenoid valve 122 is controlled to be turned on, so that the second capillary tube 123 plays a throttling role, and the opening of the first throttle valve 313 can be further adjusted so that the refrigerant flowing out of the reheat heat exchanger 21 passes through the throttling effect of the first throttle valve 313 and the second capillary tube 123 in sequence, and then enters the second dehumidification heat exchanger 12 for dehumidification.

[0068] Optionally, the length of the first capillary 113 is greater than or equal to the length of the second capillary 123 .

[0069] For example, the length of the first capillary tube 113 is greater than the length of the second capillary tube 123, and the temperature of the refrigerant obtained after throttling through the first capillary tube 113 is different from the temperature of the refrigerant obtained after throttling through the second capillary tube 123, so that the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 can exert different dehumidification effects.

[0070] Optionally, a first liquid storage tank is also provided on the first dehumidification connecting pipeline, and a second liquid storage tank is also provided on the second dehumidification connecting pipeline, so as to respectively adjust the amount of refrigerant entering the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, thereby further adjusting the dehumidification capacity of the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12.

[0071] Optionally, the reheat heat exchanger 21, the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 are arranged side by side in sequence, and the distance between the reheat heat exchanger 21 and the first dehumidification heat exchanger 11 is a first distance, and the distance between the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 is a second distance, wherein the first distance is greater than the second distance.

[0072] When the air conditioner operates in the reheat dehumidification mode, the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 act as evaporators to dehumidify, and the reheat heat exchanger 21 acts as a condenser to heat the air. At this time, the air temperature around the reheat heat exchanger 21 is relatively high. In the disclosed embodiment, the first spacing between the reheat heat exchanger 21 and the first dehumidification heat exchanger 11 is relatively large, which reduces the influence of the high temperature of the reheat heat exchanger 21 on the dehumidification effect of the first dehumidification heat exchanger 11.

[0073] Optionally, the air conditioner indoor unit further includes a shell, and the shell is provided with an air outlet.

[0074] The reheat heat exchanger 21 is arranged close to the air outlet.

[0075] The housing of the air conditioner indoor unit is provided with an air inlet and an air outlet, and the reheat heat exchanger 21 is closer to the air outlet. The air entering from the air inlet passes through the second dehumidification heat exchanger 12, the first dehumidification heat exchanger 11 and the reheat heat exchanger 21 in sequence, and then blows into the user's room from the air outlet.

[0076] If the air is first heated by the reheat heat exchanger 21 and then dehumidified by the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, the dehumidification effect of the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 will be weakened. This is because the moisture content of the indoor air entering the air conditioner indoor unit remains basically unchanged during the heating process. Therefore, the higher the temperature of this part of the air is heated, the greater the difference from the current dew point temperature. In other words, when the moisture content remains unchanged, the higher the temperature, the less likely it is to produce condensation.

[0077] In the air-conditioning indoor unit provided by the embodiment of the present disclosure, the reheat heat exchanger 21 is closer to the air outlet, so that the indoor air first passes through the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12 for condensation dehumidification, and then passes through the reheat heat exchanger 21 for heating, thereby avoiding the influence of the heating effect of the reheat heat exchanger 21 on the dehumidification effect of the first dehumidification heat exchanger 11 and the second dehumidification heat exchanger 12, thereby improving the effect of reheat dehumidification.

[0078] The embodiment of the present disclosure also provides an air conditioner.

[0079] Optionally, the air conditioner includes an air-conditioning indoor unit and an air-conditioning outdoor unit, the air-conditioning outdoor unit is provided with a compressor, a four-way valve and an outdoor heat exchanger, the air-conditioning indoor unit is provided with a dehumidification heat exchanger group, a reheat heat exchanger 21 and a connecting pipe 3, and the dehumidification heat exchanger group is connected to the outdoor heat exchanger, and the reheat heat exchanger 21 is connected to the compressor, wherein the air-conditioning indoor unit is the air-conditioning indoor unit as described above.

[0080] In the air conditioner provided by the embodiment of the present disclosure, the dehumidification heat exchanger group is connected to the outdoor heat exchanger through the liquid pipeline 102, and the reheat heat exchanger 21 is connected to the compressor through the gas pipeline 101. That is, in the air conditioner provided by the embodiment of the present disclosure, there are only two connecting pipes between the indoor unit of the air conditioner and the outdoor unit of the air conditioner, so that reheat dehumidification is realized, the pipeline connection of the reheat dehumidification air conditioner is simplified, and the installation space occupied by the air conditioner is reduced.

[0081] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An air conditioner indoor unit, characterized in that: include: A dehumidification heat exchanger group, comprising a first dehumidification heat exchanger and a second dehumidification heat exchanger arranged in parallel, wherein the first dehumidification heat exchanger comprises a first port, and the second dehumidification heat exchanger comprises a second port; a reheat heat exchanger connected to the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger; and, A connecting pipeline connects the reheat heat exchanger with the first port of the first dehumidification heat exchanger and the second port of the second dehumidification heat exchanger, Wherein, the connecting pipeline is provided with a first throttling component.

2. The air conditioner indoor unit according to claim 1, characterized in that: The connecting pipe includes a first connecting end and a second connecting end opposite to each other. The first connecting end is connected to the reheat heat exchanger, and the second connecting end is provided with an electromagnetic three-way valve connected to the first port and the second port.

3. The air conditioner indoor unit according to claim 2, characterized in that: The first throttling assembly includes a first valve component pipeline and a second valve component pipeline arranged in parallel, The first valve component pipeline includes a first solenoid valve, and the second valve component pipeline includes a second solenoid valve and a first throttle valve which are arranged in series.

4. The air conditioner indoor unit according to claim 3, characterized in that: The heat exchange area of ​​the first dehumidification heat exchanger is larger than the heat exchange area of ​​the second dehumidification heat exchanger.

5. The air conditioner indoor unit according to claim 4, characterized in that: A first dehumidification communication pipeline is connected between the first port of the first dehumidification heat exchanger and the electromagnetic three-way valve, and a second dehumidification communication pipeline is connected between the second port of the second dehumidification heat exchanger and the electromagnetic three-way valve. Among them, the first dehumidification connecting pipeline is provided with a second throttling component, and the second dehumidification connecting pipeline is provided with a third throttling component.

6. The air conditioner indoor unit according to claim 5, characterized in that: The second throttling assembly includes a third valve component pipeline and a fourth valve component pipeline which are arranged in parallel, wherein the third valve component pipeline includes a third solenoid valve, and the fourth valve component pipeline includes a fourth solenoid valve and a first capillary which are arranged in series; The third throttling assembly includes a fifth valve component pipeline and a sixth valve component pipeline which are arranged in parallel, wherein the fifth valve component pipeline includes a fifth solenoid valve, and the sixth valve component pipeline includes a sixth solenoid valve and a second capillary which are arranged in series.

7. The air conditioner indoor unit according to claim 6, characterized in that: The length of the first capillary tube is greater than or equal to the length of the second capillary tube.

8. The air conditioner indoor unit according to any one of claims 1 to 7, characterized in that: The reheat heat exchanger, the first dehumidification heat exchanger and the second dehumidification heat exchanger are arranged side by side in sequence, and the distance between the reheat heat exchanger and the first dehumidification heat exchanger is a first distance, and the distance between the first dehumidification heat exchanger and the second dehumidification heat exchanger is a second distance. The first spacing is greater than the second spacing.

9. The air conditioner indoor unit according to claim 8, characterized in that: Also includes: The housing is provided with an air outlet. Among them, the reheat heat exchanger is arranged close to the air outlet.

10. An air conditioner, characterized in that: The air conditioner comprises an indoor unit and an outdoor unit. The outdoor unit is provided with a compressor, a four-way valve and an outdoor heat exchanger. The indoor unit is provided with a dehumidification heat exchanger group, a reheat heat exchanger and a connecting pipeline. The dehumidification heat exchanger group is connected with the outdoor heat exchanger, and the reheat heat exchanger is connected with the compressor. Wherein, the air-conditioning indoor unit is the air-conditioning indoor unit as described in any one of claims 1 to 9.

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