Air conditioner indoor unit and air conditioning apparatus

Abstract

The application discloses an air conditioner indoor unit and air conditioner equipment. The air conditioner indoor unit comprises a shell, a centrifugal fan wheel and a power source. The shell comprises a machine shell and a wind shell arranged in the machine shell. The wind shell is provided with an air duct, an air inlet communicated with the air duct, a first air outlet and a second air outlet. The centrifugal fan wheel is rotatably arranged in the air duct. The power source is in transmission connection with the centrifugal fan wheel to drive the centrifugal fan wheel to rotate. The centrifugal fan wheel has a first air supply state of rotating in a first rotation direction and a second air supply state of rotating in a second rotation direction, and the first rotation direction is opposite to the second rotation direction. When the air conditioner indoor unit is in the first air supply state, air flow can flow from the air inlet to the air duct and flow out from the first air outlet. When the air conditioner indoor unit is in the second air supply state, air flow can flow from the air inlet to the air duct and flow out from the second air outlet. The air conditioner indoor unit can realize air supply in different directions, adapt to different air supply requirements, and is favorable for improving the use experience of users.

Description

Technical Field

[0001] This disclosure relates to the field of electrical technology, and in particular to an indoor air conditioning unit and air conditioning equipment. Background Technology

[0002] With the development of society and the economy and the improvement of people's living standards, air conditioning equipment has gradually become an indispensable household appliance. Air conditioning equipment delivers temperature-regulating gas through the indoor unit to provide users with a comfortable environment.

[0003] In related technologies, most air conditioner indoor units use a single air outlet to deliver air in a single direction. However, this air delivery method is difficult to flexibly adapt to different needs and fails to meet user requirements. Summary of the Invention

[0004] In view of this, the present disclosure provides an indoor air conditioning unit and an air conditioning device, which can realize air supply in different directions, adapt to different air supply needs, and help improve the user experience.

[0005] Specifically, this disclosure is achieved through the following technical solution.

[0006] According to a first aspect of the present disclosure, an air conditioner indoor unit is provided, comprising a housing, a centrifugal impeller, and a power source. The housing includes a casing and a fan casing disposed within the casing. The fan casing has an air duct, an air inlet communicating with the air duct, a first air outlet, and a second air outlet. The centrifugal impeller is rotatably disposed in the air duct. The power source is drivenly connected to the centrifugal impeller to drive the centrifugal impeller to rotate. The centrifugal impeller has a first air supply state rotating in a first rotation direction and a second air supply state rotating in a second rotation direction, the first rotation direction being opposite to the second rotation direction. When the air conditioner indoor unit is in the first air supply state, airflow can flow from the air inlet to the air duct and out through the first air outlet. When the air conditioner indoor unit is in the second air supply state, airflow can flow from the air inlet to the air duct and out through the second air outlet.

[0007] The technical solution disclosed herein will be further explained below.

[0008] In one embodiment, the housing includes a front panel and a bottom panel adjacent to the front panel, the fan housing is connected to the front panel and the bottom panel respectively, and the first air outlet is located on the front panel and the second air outlet is located on the bottom panel.

[0009] In one embodiment, the housing is provided with a heat exchange chamber, and the bottom panel is provided with a return air vent, which is connected to the air inlet through the heat exchange chamber.

[0010] In one embodiment, the indoor unit of the air conditioner further includes a baffle disposed within the heat exchange cavity. The baffle is connected to the heat exchange device and separates the heat exchange cavity, so that the heat exchange cavity forms a first cavity and a second cavity spaced apart vertically. The first cavity communicates with the return air vent, and the second cavity communicates with the air inlet.

[0011] In one embodiment, the indoor unit of the air conditioner also includes a water collection tray disposed on the casing and located below the heat exchange device.

[0012] In one embodiment, the air duct includes a first air outlet channel communicating with a first air outlet and a second air outlet channel communicating with a second air outlet. The extending directions of the first air outlet channel and the second air outlet channel are intersected.

[0013] In one embodiment, the fan housing further includes a first volute, a first sidewall, a second volute, and a second sidewall. The first volute and the first sidewall are connected to a first air outlet. The second volute and the second sidewall are connected to a second air outlet. The first volute and the first sidewall together form at least a partial first air outlet channel. The second volute and the second sidewall together form at least a partial second air outlet channel.

[0014] In one embodiment, the first volute includes a first guide wall and a second guide wall, which are arranged at an angle α. The second volute includes a third guide wall and a fourth guide wall, which are arranged at an angle β. Where α > β.

[0015] In one embodiment, the indoor unit of the air conditioner includes a cooling mode and a heating mode. When the indoor unit is in cooling mode, the centrifugal fan is in a first air supply state to supply air through a first air outlet. When the indoor unit is in heating mode, the centrifugal fan is in a second air supply state to supply air through a second air outlet.

[0016] In one embodiment, the indoor unit of the air conditioner includes at least two fan housings and at least two centrifugal impellers. The fan housings are axially spaced along the rotation axis of the centrifugal impellers. Each fan housing corresponds to one centrifugal impeller.

[0017] In one embodiment, the power source includes a main body and a drive shaft fixedly connected to the main body. The drive shaft is fixedly connected to two centrifugal impellers to drive the two centrifugal impellers to rotate.

[0018] According to a second aspect of the present disclosure, an air conditioning device is provided, the air conditioning device including an outdoor unit and an indoor unit as described in any of the above embodiments, wherein the outdoor unit and the indoor unit cooperate to enable the indoor unit to provide temperature-regulating gas.

[0019] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: When the indoor unit of this air conditioner is working, it utilizes a power source connected to a centrifugal fan, enabling the power source to drive the centrifugal fan to rotate within the air duct, thereby generating airflow. The indoor unit has two air-supply states: a first state where the centrifugal fan rotates in a first direction and a second state where the centrifugal fan rotates in a second direction. In the first air-supply state, the power source drives the centrifugal fan to rotate in the first direction, allowing airflow from the air inlet to the air duct and then through the first air outlet. In the second air-supply state, the power source drives the centrifugal fan to rotate in the opposite direction, allowing airflow from the air inlet to the air duct and then through the second air outlet. This indoor unit can supply air from both the first and second air outlets, achieving airflow in different directions to meet various air supply needs, thus improving the user experience of the indoor unit and the air conditioning equipment.

[0020] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0021] The accompanying drawings, which form part of this disclosure, are used to provide a further understanding of this disclosure. The illustrative embodiments of this disclosure and their descriptions are used to explain this disclosure and do not constitute an undue limitation of this disclosure.

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of an air conditioning device according to one embodiment.

[0024] Figure 2 for Figure 1 The diagram shows the structure of the indoor unit of the air conditioning equipment.

[0025] Figure 3 for Figure 2 The diagram shows a partial structural schematic of the indoor unit of an air conditioner.

[0026] Figure 4 for Figure 3 The diagram shows a cross-sectional view of the indoor unit of the air conditioner.

[0027] Figure 5for Figure 3 The diagram shows a partial cross-sectional view of the indoor unit of the air conditioner.

[0028] Figure 6 for Figure 2 The diagram shows a partial structural schematic of the indoor unit of an air conditioner.

[0029] Figure 7 for Figure 2 The diagram shows a partial structural schematic of the indoor unit of an air conditioner.

[0030] Figure 8 for Figure 2 The diagram shows a partial structural schematic of the indoor unit of an air conditioner.

[0031] Figure 9 for Figure 2 The diagram shows a partial structural schematic of the indoor unit of an air conditioner.

[0032] Explanation of the reference numerals in the attached figures.

[0033] 10. Air conditioning equipment; 100. Indoor unit of air conditioner; 110. Housing; 111. Unit casing; 1111. Front panel; 1112. Bottom panel; 112. Fan casing; 1121. First volute; 1122. First sidewall; 1123. Second volute; 1124. Second sidewall; 1125. First guide wall; 1126. Second guide wall; 1127. Third guide wall; 1128. Fourth guide wall; 113. Air duct; 1131. First air outlet duct; 1132. Second air outlet duct; 1133. Air inlet duct; 114. Air inlet; 115. First air outlet; 116. Second air outlet; 20. Centrifugal fan; 130. Power source; 131. Body; 132. Drive shaft; 140. Heat exchange device; 150. Wind deflector; 160. Water collection tray; 101. Return air outlet; 200. Outdoor unit of air conditioner. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative and do not limit the scope of protection of this disclosure.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure.

[0036] With the development of society and the economy and the improvement of people's living standards, air conditioning equipment has gradually become an indispensable household appliance. Air conditioning equipment delivers temperature-regulating gas through the indoor unit to provide users with a comfortable environment.

[0037] In related technologies, most air conditioner indoor units use a single air outlet to deliver air in a single direction. However, this air delivery method is difficult to flexibly adapt to different needs and is not conducive to the user experience.

[0038] Based on this, such as Figures 1 to 9 As shown, an air conditioner indoor unit 100 and an air conditioning device 10 are provided. The air conditioner indoor unit 100 can realize air supply in different directions, adapt to different air supply needs, and help improve the user experience.

[0039] like Figure 1 as well as Figure 2 As shown, in some embodiments, the air conditioning unit 10 includes an outdoor unit 200 and an indoor unit 100, which cooperate to enable the indoor unit 100 to provide temperature-regulating gas. Thus, when the air conditioning unit 10 is operating, the indoor unit 100 can provide temperature-regulating gas to provide a comfortable environment for the user.

[0040] like Figures 2 to 9 As shown, in some embodiments, the indoor unit 100 of the air conditioner includes a housing 110, a centrifugal impeller 20, and a power source 130. The housing 110 includes a casing 111 and a fan casing 112 disposed within the casing 111. The fan casing 112 is provided with an air duct 113, an air inlet 114 communicating with the air duct 113, a first air outlet 115, and a second air outlet 116. The centrifugal impeller 20 is rotatably disposed in the air duct 113. The power source 130 is drivenly connected to the centrifugal impeller 20 to drive the centrifugal impeller 20 to rotate. The centrifugal impeller 20 has a first air supply state rotating in a first rotation direction and a second air supply state rotating in a second rotation direction, the first rotation direction being opposite to the second rotation direction. When the indoor unit 100 of the air conditioner is in the first air supply state, the airflow can flow from the air inlet 114 to the air duct 113 and out through the first air outlet 115. When the indoor unit 100 of the air conditioner is in the second air supply state, the airflow can flow from the air inlet 114 to the air duct 113 and out through the second air outlet 116.

[0041] Thus, when the indoor unit 100 of the air conditioner is working, the power source 130 is connected to the centrifugal impeller 20, enabling the power source 130 to drive the centrifugal impeller 20 to rotate within the air duct 113, thereby generating airflow within the air duct 113. The indoor unit 100 has a first air supply state where the centrifugal impeller 20 rotates in a first rotation direction and a second air supply state where the centrifugal impeller 20 rotates in a second rotation direction. When the indoor unit 100 is in the first air supply state, the power source 130 drives the centrifugal impeller 20 to rotate in the first rotation direction, allowing airflow to flow from the air inlet 114 to the air duct 113 and be delivered through the first air outlet 115. When the indoor unit 100 is in the second air supply state, the power source 130 drives the centrifugal impeller 20 to rotate in the second rotation direction opposite to the first rotation direction, allowing airflow to flow from the air inlet 114 to the air duct 113 and be delivered through the second air outlet 116. The indoor unit 100 of the air conditioner can deliver air from the first air outlet 115 and the second air outlet 116 to achieve air delivery in different directions, adapt to different air delivery needs, and improve the user experience of the indoor unit 100 and the air conditioning equipment 10.

[0042] like Figures 2 to 9 As shown, in some embodiments, the casing 111 of the indoor air conditioner 100 includes a front panel 1111 and a bottom panel 1112 adjacent to the front panel 1111. The fan casing 112 is connected to both the front panel 1111 and the bottom panel 1112. A first air outlet 115 is located on the front panel 1111, and a second air outlet 116 is located on the bottom panel 1112. Thus, when the indoor air conditioner 100 is operating, in the first air supply state, airflow can be delivered through the first air outlet 115, which is located on the front panel 1111 of the casing 111, so that the indoor air conditioner 100 supplies air through the first air outlet 115 located on the front panel 1111. When the indoor unit 100 of the air conditioner is in the first air supply state, the airflow can be delivered through the second air outlet 116. The second air outlet 116 is located on the bottom panel 1112 of the casing 111, so that the indoor unit 100 of the air conditioner can deliver air through the second air outlet located on the bottom panel 1112, so that the air conditioning equipment 10 can switch between skylight air and carpet air, making the indoor air flow more comfortable. It can prevent cold air from blowing directly when the indoor unit 100 of the air conditioner is in the cooling mode, and the temperature rises faster when the indoor unit 100 of the air conditioner is in the heating mode, thereby improving the user's experience of the air conditioning equipment 10.

[0043] like Figures 2 to 4As shown, in some embodiments, the housing 111 is provided with a heat exchange chamber, and the bottom panel 1112 is provided with a return air vent 101, which is connected to the air inlet 114 through the heat exchange chamber. Thus, when the indoor unit 100 of the air conditioner is working, the return air vent 101 provided on the bottom panel 1112 draws in outside air and delivers the air to the heat exchange chamber for heat exchange. The heat-exchanged air then enters the air duct 113 through the air inlet 114 to be delivered by the indoor unit 100 of the air conditioner.

[0044] like Figures 2 to 5 As shown, in some embodiments, the air conditioner indoor unit 100 further includes a heat exchange device 140, which is disposed in the heat exchange chamber. In this way, the gas entering the heat exchange chamber can exchange heat through the heat exchange device 140, so that the gas drawn in from the lower air outlet forms temperature-regulating gas through the heat exchange device 140 and enters the air inlet 114, and is delivered by the air conditioner indoor unit 100.

[0045] like Figures 4 to 9 As shown, in some embodiments, the indoor unit 100 of the air conditioner further includes a baffle 150 disposed within the heat exchange cavity. The baffle 150 is connected between the heat exchange device 140 and the casing 111, and the heat exchange device 140 is connected to the casing 111, so that the baffle 150 and the heat exchange device 140 separate the heat exchange cavity to form a first cavity and a second cavity spaced apart vertically. The first cavity communicates with the return air vent 101, and the second cavity communicates with the air inlet 114. Thus, by providing the baffle 150 within the heat exchange cavity and connecting the baffle 150 between the heat exchange device 140 and the casing 111, the baffle 150, the heat exchange device 140, and the casing 111 together separate the heat insulation cavity and form a first cavity and a second cavity spaced apart vertically. When the indoor unit 100 of the air conditioner is working, the return air vent 101 can draw in outside air. The first chamber is connected to the return air vent 101, allowing outside air to enter the first chamber and then pass through the heat exchange device 140 into the second chamber. The second chamber is connected to the air inlet 114, allowing temperature-regulating gas to enter the air inlet 114. The baffle 150 restricts airflow from the first chamber through the heat exchange device 140 into the second chamber, ensuring the heat exchange effect of the heat exchange device 140 on the gas and improving the reliability of the temperature-regulating gas delivered by the indoor unit 100 of the air conditioner.

[0046] like Figures 4 to 9As shown, in some embodiments, the indoor unit 100 of the air conditioner also includes a water collection tray 160, which is disposed on the casing 111 and located below the heat exchange device 140. This allows the gas to form temperature-regulating gas under the action of the heat exchange device 140 when the indoor unit 100 is operating, providing a comfortable environment for the user. By placing the water collection tray 160 below the heat exchange device 140, the water generated by the heat exchange device 140 can be collected in the water collection tray 160, preventing dripping or leakage from the indoor unit 100 and improving the user experience.

[0047] like Figures 4 to 9 As shown, in some embodiments, the air duct 113 includes a first air outlet channel 1131 communicating with the first air outlet 115 and a second air outlet channel 1132 communicating with the second air outlet 116. Thus, when the indoor unit 100 is in a first air supply state, the power source 130 drives the centrifugal impeller 20 to rotate in a first rotation direction, so that airflow can be delivered from the air inlet 114 through the first air outlet channel 1131 to the first air outlet 115. When the indoor unit 100 is in a second air supply state, the power source 130 drives the centrifugal impeller 20 to rotate in a second rotation direction opposite to the first rotation direction, so that airflow can be delivered from the air inlet 114 through the second air outlet channel 1132 to the second air outlet 116. By setting the first air outlet channel 1131 and the second air outlet channel 1132, the airflow direction can be better guided during air supply from the indoor unit 100, ensuring the reliability of airflow output from the first air outlet 115 or the second air outlet 116.

[0048] like Figures 4 to 9 As shown, in some embodiments, the extending direction of the first air outlet duct 1131 intersects with the extending direction of the second air outlet duct 1132. Thus, by intersecting the extending directions of the first air outlet duct 1131 and the second air outlet duct 1132, when the indoor unit 100 is in the first air supply state, most of the airflow can pass through the first air outlet duct 1131 and be delivered through the first air outlet 115, which helps reduce the airflow volume at the second air outlet 116, ensuring that most of the airflow is delivered through the first air outlet 115 when the indoor unit 100 is in the first air supply state. When the indoor unit 100 is in the second air supply state, most of the airflow can pass through the second air outlet 1132 and be delivered through the second air outlet 116, which helps reduce the airflow volume at the first air outlet 115, ensuring that most of the airflow is delivered through the second air outlet 116 when the indoor unit 100 is in the second air supply state.

[0049] like Figures 4 to 9As shown, in some embodiments, the air intake direction of the air inlet 114 is perpendicular to the air outlet direction of the first air outlet 115 and the air outlet direction of the second air outlet 116, respectively. Thus, by designing the air intake direction of the air inlet 114 to be perpendicular to the air outlet direction of the first air outlet 115 and the air outlet direction of the second air outlet 116, the air volume entering through the air inlet 114 can be increased, and the reliability of converting the air into air exiting through the first air outlet 115 or the second air outlet 116 using the centrifugal impeller 20 can be improved.

[0050] like Figures 4 to 9 As shown, in some embodiments, the air duct 113 further includes an air intake channel 1133 communicating with the air inlet 114, and the air intake channel 1133 is disposed between the first air outlet channel 1131 and the second air outlet channel 1132. A centrifugal impeller 20 is disposed in the air intake channel 1133. Thus, when the indoor unit 100 is operating, the indoor unit 100 draws air into the air intake channel 1133 through the air inlet 114. When the indoor unit 100 is in the first air supply state, most of the airflow can be output from the air inlet channel 1133 through the first air outlet channel 1131 and out of the first air outlet 115. When the indoor unit 100 is in the second air supply state, most of the airflow can be output from the air inlet channel 1133 through the second air outlet channel 1132 and out of the second air outlet 116. The air inlet channel 1133 can guide airflow from the air inlet 114 into the air inlet channel 1133, thereby improving the air supply efficiency of the air conditioner indoor unit 100 and thus improving the air supply efficiency of the air conditioner indoor unit 100 and the air conditioning equipment 10.

[0051] like Figures 4 to 9As shown, in some embodiments, the fan housing 112 further includes a first volute 1121, a first sidewall 1122, a second volute 1123, and a second sidewall 1124. The first volute 1121 and the first sidewall 1122 are connected to a first air outlet 115. The second volute 1123 and the second sidewall 1124 are connected to a second air outlet 116. The first volute 1121 and the first sidewall 1122 enclose at least a portion of a first air outlet channel 1131. The second volute 1123 and the second sidewall 1124 enclose at least a portion of a second air outlet channel 1132. Thus, by enclosing the first volute 1121 and the first sidewall 1122 to form at least a portion of the first air outlet duct 1131, and by enclosing the second volute 1123 and the second sidewall 1124 to form at least a portion of the second air outlet duct 1132, when the indoor unit 100 of the air conditioner is operating, the airflow, guided by the first volute 1121 and the first sidewall 1122, can be output from the first air outlet 115 along the first air outlet duct 1131. The first volute 1121 and the first sidewall 1122 can improve the airflow delivery efficiency. Similarly, under the guidance of the second volute 1123 and the second sidewall 1124, the airflow can be output from the second air outlet 116 along the second air outlet duct 1132. The second volute 1123 and the second sidewall 1124 can also improve the airflow delivery efficiency.

[0052] like Figures 4 to 9As shown, in some embodiments, the first volute 1121 includes a first guide wall 1125 and a second guide wall 1126, which are arranged at an angle, and the angle formed between the first guide wall 1125 and the second guide wall 1126 is α. The second volute 1123 includes a third guide wall 1127 and a fourth guide wall 1128, which are arranged at an angle, and the angle formed between the third guide wall 1127 and the fourth guide wall 1128 is β. Where α > β. Thus, when the indoor unit 100 is in the first air supply state, the first guide wall 1125 and the second guide wall 1126 of the first volute 1121 can guide the airflow. Furthermore, setting the first guide wall 1125 and the second guide wall 1126 at an angle reduces airflow loss on the first volute 1121, improving the operating efficiency of the indoor unit 100. When the indoor unit 100 is in the second air supply state, the third guide wall 1127 and the fourth guide wall 1128 of the second volute 1123 can guide the airflow. Setting the third guide wall 1127 and the fourth guide wall 1128 at an angle reduces airflow loss on the second volute 1123, improving the operating efficiency of the indoor unit 100. By designing the angle a > angle b, when the indoor unit 100 is in the first air supply state, the likelihood of most of the gas being output through the first air outlet 115 is increased. When the indoor unit 100 of the air conditioner is in the second air supply state, you can increase the likelihood that most of the gas will be output through the second air outlet 116.

[0053] like Figures 4 to 9 As shown, in some embodiments, when the indoor unit 100 is in the first air supply state, the power source 130 rotates forward to drive the centrifugal impeller 20 to rotate in the first rotation direction. When the indoor unit 100 is in the second air supply state, the power source 130 rotates in reverse to drive the centrifugal impeller 20 to rotate in the second rotation direction. Thus, when the indoor unit 100 is operating, when it is in the first air supply state, the power source 130 rotates forward to drive the centrifugal impeller 20 to rotate in the first rotation direction, so that the indoor unit 100 can draw in gas through the air inlet 114, and under the action of the centrifugal impeller 20, most of the gas is output through the first air outlet 115. When the indoor unit 100 is in the second air supply state, the power source 130 rotates in reverse to drive the centrifugal impeller 20 to rotate in the second rotation direction, so that the indoor unit 100 can draw in gas through the air inlet 114, and under the action of the centrifugal impeller 20, most of the gas is output through the second air outlet 116.

[0054] In other embodiments, when the indoor unit 100 of the air conditioner is in the first air supply state, the power source 130 reverses to drive the centrifugal fan 20 to rotate in the first rotation direction. When the indoor unit 100 of the air conditioner is in the second air supply state, the power source 130 rotates forward to drive the centrifugal fan 20 to rotate in the second rotation direction.

[0055] It should be noted that the power source 130 can be implemented in various ways, including by means of an electric motor, etc.

[0056] It should be noted that when the power source 130 rotates forward, it drives the centrifugal impeller 20 to rotate in the first rotation direction, and when the power source 130 rotates in reverse, it drives the centrifugal impeller 20 to rotate in the second rotation direction. Therefore, the first rotation direction and the second rotation direction are opposite.

[0057] like Figures 4 to 9 As shown, in some embodiments, the air conditioner indoor unit 100 includes a cooling mode and a heating mode. When the air conditioner indoor unit 100 is in cooling mode, it is in a first air supply state, supplying air through a first air outlet 115. When the air conditioner indoor unit 100 is in heating mode, it is in a second air supply state, supplying air through a second air outlet 116. Thus, when the air conditioner indoor unit 100 is in cooling mode, it is in the first air supply state, allowing air to be supplied through the first air outlet, which helps improve the cooling efficiency of the air conditioner indoor unit. When the air conditioner indoor unit is in heating mode, it is in the second air supply state, allowing air to be supplied through the second air outlet, which helps improve the heating efficiency of the air conditioner indoor unit.

[0058] like Figures 4 to 9 As shown, in some embodiments, the indoor unit 100 of the air conditioner includes at least two fan housings 112 and at least two centrifugal impellers 20. The fan housings 112 are axially spaced along the rotation axis of the centrifugal impellers 20. Each fan housing 112 corresponds to one centrifugal impeller 20.

[0059] like Figures 4 to 9 As shown, in some embodiments, the power source 130 includes a body 131 and a drive shaft 132 fixedly connected to the body 131. The drive shaft 132 is fixedly connected to two centrifugal impellers 20 respectively to drive the two centrifugal impellers 20 to rotate. In this way, by setting the drive shaft 132 to be fixedly connected to two centrifugal impellers 20 respectively to drive the two centrifugal impellers 20 to rotate, the transmission efficiency is improved, the structure required for the transmission device is reduced, and the internal structure of the air conditioner indoor unit 100 is simplified.

[0060] In some embodiments, when the indoor unit 100 is in a first air supply state, the air volume of the first air outlet 115 is greater than or equal to 90% of the total air volume. When the indoor unit 100 is in a second air supply state, the air volume of the second air outlet 116 is greater than or equal to 90% of the total air volume. Thus, when the indoor unit 100 is operating, when the indoor unit 100 is in the first air supply state, the air volume of the first air outlet 115 is greater than or equal to 90% of the total air volume, ensuring that most of the gas is output through the first air outlet 115. When the indoor unit 100 is in the second air supply state, the air volume of the second air outlet 116 is greater than or equal to 90% of the total air volume, ensuring that most of the gas is output through the second air outlet 116.

[0061] It should be noted that when the indoor unit 100 of the air conditioner is in the first air supply state, the air volume of the first air outlet 115 is greater than or equal to 90% of the total air volume. Specifically, the air volume of the first air outlet 115 can be equal to 90%, 92%, 94%, 95%, 96% or 98% of the total air volume.

[0062] It should be noted that when the indoor unit 100 of the air conditioner is in the second air supply state, the air volume of the second air outlet 116 is greater than or equal to 90% of the total air volume. Specifically, the air volume of the first air outlet 115 can be equal to 90%, 92%, 94%, 95%, 96% or 98% of the total air volume.

[0063] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0064] The above embodiments are merely illustrative of several implementation methods of this disclosure, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of this disclosure, and these modifications and improvements all fall within the protection scope of this disclosure.

Claims

1. An indoor unit for an air conditioner, characterized in that, include: The housing includes a casing and a fan casing disposed within the casing; the fan casing is provided with an air duct, an air inlet communicating with the air duct, a first air outlet and a second air outlet; A centrifugal impeller is rotatably mounted in the air duct; as well as A power source is connected to the centrifugal impeller to drive the centrifugal impeller to rotate; the centrifugal impeller has a first air supply state rotating in a first rotation direction and a second air supply state rotating in a second rotation direction, wherein the first rotation direction is opposite to the second rotation direction. When the indoor unit of the air conditioner is in the first air supply state, the airflow can flow from the air inlet to the air duct and out through the first air outlet; when the indoor unit of the air conditioner is in the second air supply state, the airflow can flow from the air inlet to the air duct and out through the second air outlet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The housing includes a front panel and a bottom panel adjacent to the front panel. The fan housing is connected to the front panel and the bottom panel respectively, and the first air outlet is located on the front panel and the second air outlet is located on the bottom panel.

3. The indoor unit of the air conditioner according to claim 2, characterized in that, The casing is provided with a heat exchange chamber, and the bottom panel is provided with a return air inlet, which is connected to the air inlet through the heat exchange chamber.

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The indoor unit of the air conditioner also includes a heat exchange device and a wind deflector disposed in the heat exchange cavity. The wind deflector is connected to the heat exchange device to separate the heat exchange cavity, so that the heat exchange cavity forms a first cavity and a second cavity spaced apart vertically. The first cavity is connected to the return air vent, and the second cavity is connected to the air inlet.

5. The indoor unit of the air conditioner according to claim 4, characterized in that, The indoor unit of the air conditioner also includes a water collection tray, which is disposed on the casing and located below the heat exchange device.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The air duct includes a first air outlet channel connected to the first air outlet and a second air outlet channel connected to the second air outlet; the extension direction of the first air outlet channel intersects the extension direction of the second air outlet channel.

7. The indoor unit of the air conditioner according to claim 6, characterized in that, The air casing further includes a first volute tongue, a first sidewall, a second volute tongue, and a second sidewall; the first volute tongue and the first sidewall are connected to the first air outlet; the second volute tongue and the second sidewall are connected to the second air outlet; the first volute tongue and the first sidewall enclose to form at least a portion of the first air outlet channel; the second volute tongue and the second sidewall enclose to form at least a portion of the second air outlet channel.

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The first volute tongue includes a first guide wall and a second guide wall, the first guide wall and the second guide wall are arranged at an angle, and the angle formed between the first guide wall and the second guide wall is α; The second volute tongue includes a third guide wall and a fourth guide wall, the third guide wall and the fourth guide wall are arranged at an angle, and the angle formed between the third guide wall and the fourth guide wall is b; where a > b.

9. The indoor unit of the air conditioner according to claim 1, characterized in that, The indoor unit of the air conditioner includes a cooling mode and a heating mode; when the indoor unit of the air conditioner is in the cooling mode, the centrifugal fan is in the first air supply state, so as to supply air through the first air outlet; When the indoor unit of the air conditioner is in the heating mode, the centrifugal fan is in the second air supply state to supply air through the second air outlet.

10. The indoor unit of the air conditioner according to claim 1, characterized in that, The indoor unit of the air conditioner includes at least two fan housings and at least two centrifugal impellers; the fan housings are axially spaced along the rotation axis of the centrifugal impellers; each fan housing corresponds to one centrifugal impeller.

11. The indoor unit of the air conditioner according to claim 10, characterized in that, The power source includes a main body and a transmission shaft fixedly connected to the main body. The transmission shaft is fixedly connected to the two centrifugal impellers respectively to drive the two centrifugal impellers to rotate.

12. An air conditioning device, characterized in that, It includes an outdoor air conditioning unit and an indoor air conditioning unit as described in any one of claims 1 to 11, wherein the outdoor air conditioning unit cooperates with the indoor air conditioning unit to enable the indoor air conditioning unit to provide temperature-regulating gas.

Images