Indoor unit of air conditioner

Abstract

The utility model discloses an indoor unit of an air conditioner. The air conditioner indoor unit comprises a machine shell, the machine shell comprises a first side plate, a second side plate, a front face plate and a rear plate, the first side plate and the second side plate are oppositely arranged in the length direction of the machine shell, the first side plate is provided with a first air outlet, the second side plate is provided with a second air outlet, and the front face plate and the rear plate are oppositely arranged in the length direction of the machine shell. The front panel and the rear panel are oppositely arranged in the width direction of the machine shell, and the front panel is provided with a first air inlet. The fan and the heat exchanger are arranged in the machine shell, and each of the fan and the heat exchanger is arranged in the machine shell. The air conditioner indoor unit has the advantages that cold air and hot air are prevented from directly blowing users, the comfort level of the users is improved, and the refrigerating and heating effects are good.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioning technology field, specifically, air conditioner indoor unit. BACKGROUND

[0002] Air conditioning device can carry out refrigeration and heating, thereby changing the temperature of the room, so that people feel more comfortable. Air conditioning device realizes air conditioning through blowing, so the air duct design of air conditioning device is an important influencing factor of user experience. SUMMARY

[0003] The utility model discloses at least one of the technical problems in the prior art is solved to some extent. To this end, the utility model provides air conditioner indoor unit.

[0004] The air conditioner indoor unit of the utility model includes: the casing, the casing includes first side plate, second side plate, front panel and back plate, the first side plate and the second side plate are opposite in the length direction of the casing, the first side plate is equipped with the first air outlet, the second side plate is equipped with the second air outlet, the front panel and the back plate are opposite in the width direction of the casing, and the front panel is equipped with the first air inlet, and the fan and the heat exchanger, each of the fan and the heat exchanger is arranged in the casing.

[0005] The air conditioner indoor unit of the utility model has the advantages of avoiding cold wind and hot wind straight blow user, improving user's comfort, and good refrigeration and heating effect.

[0006] Optionally, the first air outlet is arranged on the upper part of the first side plate, and the second air outlet is arranged on the upper part of the second side plate, or the first air inlet is arranged on the upper part of the front panel, and the first air inlet extends along the length direction of the casing, or the back plate includes a back frame part, an upper plate part and a lower plate part, the upper plate part is arranged on the back frame part, and the lower plate part is arranged on the back frame part, wherein the lower plate part is connected with the upper plate part, the lower plate part is arranged obliquely, the lower edge of the lower plate part is located in front of the upper edge of the lower plate part, and each of the lower plate part and the bottom plate of the casing is provided with a second air inlet.

[0007] Optionally, the fan includes a first fan and a second fan, the air outlet side of the first fan is matched with the first air outlet, and the air outlet side of the second fan is matched with the second air outlet.

[0008] Optionally, the first fan includes a plurality of first axial flow fans, the plurality of first axial flow fans are coaxially arranged, the second fan includes a plurality of second axial flow fans, and the plurality of second axial flow fans are coaxially arranged.

[0009] Optionally, the air conditioner indoor unit further comprises: a first bearing support and a first bearing, the first bearing support is arranged on at least one of the rear plate and the top plate of the cabinet, and the first bearing is arranged on the first bearing support, wherein the first fan comprises a first shaft, a first motor and a plurality of first axial blade groups, the first shaft is supported on the first bearing and extends along the length direction of the cabinet, the first motor is connected with the first shaft, and the plurality of first axial blade groups are arranged on the first shaft in the axial direction of the first shaft; and a second bearing support and a second bearing, the second bearing support is arranged on at least one of the rear plate and the top plate, and the second bearing is arranged on the second bearing support, wherein the second fan comprises a second shaft, a second motor and a plurality of second axial blade groups, the second shaft is supported on the second bearing and extends along the length direction of the cabinet, the second motor is connected with the second shaft, and the plurality of second axial blade groups are arranged on the second shaft in the axial direction of the second shaft.

[0010] Optionally, the heat exchanger comprises: a first side heat exchange part located between the air outlet side of the first fan and the first air outlet; a second side heat exchange part located between the air outlet side of the second fan and the second air outlet; and a lower heat exchange part located between the second air inlet of the cabinet and the air inlet side of each of the first fan and the second fan in the height direction of the cabinet.

[0011] Optionally, the heat exchanger further comprises an intermediate heat exchange part opposite to the first air inlet of the cabinet in the width direction of the cabinet, wherein the first fan is located between the first side heat exchange part and the intermediate heat exchange part in the length direction of the cabinet, and the second fan is located between the second side heat exchange part and the intermediate heat exchange part in the length direction of the cabinet.

[0012] Optionally, the lower heat exchange part is arranged horizontally or obliquely, the lower heat exchange part has a first end part and a second end part opposite in the length direction of the cabinet, each of the first side heat exchange part, the second side heat exchange part and the intermediate heat exchange part is arranged vertically or obliquely, wherein a lower end part of the first side heat exchange part is adjacent to the first end part of the lower heat exchange part, a lower end part of the second side heat exchange part is adjacent to the second end part of the lower heat exchange part, and a lower end part of the intermediate heat exchange part is adjacent to a middle part of the lower heat exchange part; and / or the thickness direction of each of the first side heat exchange part, the second side heat exchange part and the intermediate heat exchange part is consistent with the length direction of the cabinet.

[0013] Optionally, the air conditioner indoor unit further comprises a water pan, the water pan comprises a first plate and a second plate, each of the first plate and the second plate is arranged obliquely, a lower end of the first plate is connected with a lower end of the second plate, and an included angle of the first plate and the second plate is greater than or equal to a preset value.

[0014] Optionally, the water pan further comprises a third plate and a fourth plate, the third plate is arranged obliquely or vertically, a lower end of the third plate is connected with an upper end of the first plate, the fourth plate is arranged obliquely or vertically, a lower end of the fourth plate is connected with an upper end of the second plate, the lower heat exchange part has a third end and a fourth end opposite in the width direction of the cabinet, the third end of the lower heat exchange part is adjacent to the upper end of the first plate in the width direction of the cabinet, and the fourth end of the lower heat exchange part is adjacent to the upper end of the second plate in the width direction of the cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure schematic diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0016] Figure 2 is an exploded view of an air conditioner indoor unit according to an embodiment of the present application;

[0017] Figure 3 is a partial structure schematic diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0018] Figure 4 is a partial structure schematic diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0019] Figure 5 is a partial structure schematic diagram of an air conditioner indoor unit according to an embodiment of the present application;

[0020] Figure 6 is a partial structure schematic diagram of an air conditioner indoor unit according to an embodiment of the present application. DETAILED DESCRIPTION

[0021] Embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below by reference to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0022] An air conditioner indoor unit 100 according to an embodiment of the present application is described below with reference to the accompanying drawings. As shown in Figures 1-6As shown, the indoor unit 100 of the air conditioner according to an embodiment of the present invention includes a housing 1, a fan, and a heat exchanger 3. Each of the fan and the heat exchanger 3 is disposed within the housing 1. The housing 1 includes a first side plate 11, a second side plate 12, a front panel 13, and a rear panel 14.

[0023] The first side panel 11 and the second side panel 12 are arranged opposite each other in the length direction of the housing 1. The first side panel 11 is provided with a first air outlet 111, and the second side panel 12 is provided with a second air outlet 121. The front panel 13 and the rear panel 14 are arranged opposite each other in the width direction of the housing 1. The front panel 13 is provided with a first air inlet 131.

[0024] According to the present utility model, the indoor unit 100 of the air conditioner can achieve side air outlet by providing a first air outlet 111 on the first side plate 11 and a second air outlet 121 on the second side plate 12, so as to avoid cold and hot air blowing directly on the user and make the user feel more comfortable.

[0025] Furthermore, by providing multiple air outlets (first air outlet 111 and second air outlet 121), the indoor unit 100 of the air conditioner according to this embodiment of the present invention can effectively increase the air outlet area and air outlet direction, thereby enabling the cold and hot air blown out by the indoor unit 100 to cover the entire room more fully and quickly, thus improving the cooling and heating effect. Especially when the length of the casing 1 is relatively small, by providing the first air outlet 111 and the second air outlet 121, the air volume can be effectively increased, thereby improving the cooling and heating effect.

[0026] Therefore, the air conditioner indoor unit 100 according to the present utility model has advantages such as avoiding cold and hot air blowing directly on the user, improving user comfort, and having good cooling and heating effects.

[0027] like Figures 1-6 As shown, the indoor unit 100 of the air conditioner according to an embodiment of the present invention includes a casing 1, a fan, and a heat exchanger 3. Each of the fan and the heat exchanger 3 is disposed within the casing 1.

[0028] The housing 1 includes a first side panel 11, a second side panel 12, a front panel 13, a rear panel 14, a top panel 151, and a bottom panel 152. The first side panel 11 and the second side panel 12 are arranged opposite each other along the length of the housing 1. The first side panel 11 has a first air outlet 111, and the second side panel 12 has a second air outlet 121. The front panel 13 and the rear panel 14 are arranged opposite each other along the width of the housing 1. The front panel 13 has a first air inlet 131. The top panel 151 and the bottom panel 152 are arranged opposite each other along the height of the housing 1.

[0029] When the air conditioner indoor unit 100 is in the installed state, the length direction of the casing 1 can coincide with the left-right direction, the width direction of the casing 1 can coincide with the front-rear direction, and the height direction of the casing 1 can coincide with the up-down direction. The left-right direction is indicated by an arrow A in FIG. 1, the front-rear direction is indicated by an arrow B in FIG. 1, and the up-down direction is indicated by an arrow C in FIG. 1. Figure 3 Figure 2 Figure 1 Figure 3

[0030] As shown in FIG. 1, the bottom plate 152 is provided with the second air inlet 17. By providing the first air inlet 131 in the front panel 13 and the second air inlet 17 in the bottom plate 152, the air inlet area can be increased so as to increase the air inlet amount, and thus the air outlet amount can be increased. In this way, the cool air and the warm air blown out by the air conditioner indoor unit 100 can more fully and more quickly cover the entire room, and the cooling and heating effects can be improved. Figure 2 Moreover, by providing the first air inlet 131 in the front panel 13 and the second air inlet 17 in the bottom plate 152, the air inlet direction can be increased, and thus the return air can be more easily formed so as to accelerate the circulation of the air (air flow) in the room, and the cooling and heating effects can be improved.

[0031]

[0032] As shown in FIG. 1, the rear panel 14 includes a rear frame portion 143, an upper plate portion 141, and a lower plate portion 142. The upper plate portion 141 is provided on the rear frame portion 143, and the lower plate portion 142 is provided on the rear frame portion 143 and connected to the upper plate portion 141. The lower plate portion 142 is provided obliquely, and the lower edge of the lower plate portion 142 is located forward of the upper edge of the lower plate portion 142. That is, the lower plate portion 142 extends forward and downward from the upper plate portion 141. The lower plate portion 142 is provided with the second air inlet 17. Figure 2 Figure 5 By extending the lower plate portion 142 forward and downward from the upper plate portion 141, the lower plate portion 142 can be prevented from being close to a wall or the like, so that the air can enter the casing 1 through the second air inlet 17 provided in the lower plate portion 142. By providing the second air inlet 17 in the lower plate portion 142, the air inlet area can be further increased so as to further increase the air inlet amount, and thus the air outlet amount can be increased, so that the cool air and the warm air blown out by the air conditioner indoor unit 100 can more fully and more quickly cover the entire room, and the cooling and heating effects can be improved.

[0033] Moreover, by providing the first air inlet 131 in the front panel 13 and the second air inlets 17 in the bottom plate 152 and the lower plate portion 142, the air inlet direction can be increased, and thus the return air can be more easily formed so as to accelerate the circulation of the air (air flow) in the room, and the cooling and heating effects can be improved.

[0034]

[0035] ​​​​​​​The rear frame portion 143 provides a mounting space for the inclined lower plate portion 142. For example, the upper plate portion 141 can be adjacent to the rear edge of the rear frame portion 143 in the front-rear direction, and the lower edge of the lower plate portion 142 can be adjacent to the front edge of the rear frame portion 143 in the front-rear direction. Specifically, the rear edge of each of the first side plate 11, the second side plate 12, the top plate 151, and the bottom plate 152 is connected to the rear frame portion 143.

[0036] As shown in Figure 1 and Figure 2 , the first air outlet 111 is provided at the upper portion of the first side plate 11, and the second air outlet 121 is provided at the upper portion of the second side plate 12. In this way, the first air outlet 111 and the second air outlet 121 are facilitated to cooperate with the air outlet side of the fan, thereby facilitating the installation of the fan in the casing 1.

[0037] The first air inlet 131 is provided at the upper portion of the front panel 13, and the first air inlet 131 extends along the length direction of the casing 1. In this way, the air inlet area of the first air inlet 131 can be increased, thereby increasing the air inlet amount of the casing 1 and the air conditioner indoor unit 100.

[0038] As shown in Figure 1 and Figure 2 , the casing 1 further includes a first air guide plate 181 and a second air guide plate 182. The first air guide plate 181 is rotatably provided at the first air outlet 111 of the first side plate 11 between a first closed position and a first air guide position, and the rotation axis of the first air guide plate 181 extends along the width direction or the height direction of the casing 1. The second air guide plate 182 is rotatably provided at the second air outlet 121 of the second side plate 12 between a second closed position and a second air guide position, and the rotation axis of the second air guide plate 182 extends along the width direction or the height direction of the casing 1.

[0039] When the air conditioner indoor unit 100 is heating, the first air guide plate 181 located in the first air guide position extends obliquely downward or horizontally (is provided), and the second air guide plate 182 located in the second air guide position extends obliquely downward or horizontally (is provided). When the first air guide plate 181 (the second air guide plate 182) extends obliquely downward, the upper end portion of the first air guide plate 181 (the second air guide plate 182) is adjacent to the lower end portion of the first air guide plate 181 (the second air guide plate 182) in the length direction of the casing 1.

[0040] In other words, when the air conditioning indoor unit 100 performs heating, the first air deflector 181 positioned at the first air deflection position has an angle greater than 0 degrees and less than or equal to 90 degrees with respect to the vertically downward direction. The second air deflector 182 positioned at the second air deflection position has an angle greater than 0 degrees and less than or equal to 90 degrees with respect to the vertically downward direction. Thus, the first air deflector 181 and the second air deflector 182 can flow the hot air downward to form "carpet wind" when performing heating, thereby making the hot air more fully and more quickly cover the entire room, so as to further improve the heating effect.

[0041] When the air conditioning indoor unit 100 performs cooling, the first air deflector 181 positioned at the first air deflection position extends obliquely upward or horizontally (is provided), and the second air deflector 182 positioned at the second air deflection position extends obliquely upward or horizontally (is provided). When the first air deflector 181 (the second air deflector 182) extends obliquely upward, the upper end portion of the first air deflector 181 (the second air deflector 182) is away from the first side plate 11 (the second side plate 12) in the length direction of the housing 1 relative to the lower end portion of the first air deflector 181 (the second air deflector 182).

[0042] In other words, when the air conditioning indoor unit 100 performs cooling, the first air deflector 181 positioned at the first air deflection position has an angle greater than 0 degrees and less than or equal to 90 degrees with respect to the vertically upward direction. The second air deflector 182 positioned at the second air deflection position has an angle greater than 0 degrees and less than or equal to 90 degrees with respect to the vertically upward direction. Thus, the user's comfort can be further improved.

[0043] As shown in Figure 1 and Figure 2 , the housing 1 further includes a first support 191 and a first adjustment member 192, each of which is provided on the first side plate 11. The first support 191 is connected to the first air deflector 181. At least a portion of the first adjustment member 192 is movably provided in the length direction of the housing 1, and the at least a portion of the first adjustment member 192 is connected to the first air deflector 181.

[0044] That is, the first adjustment member 192 can be movably provided in the length direction of the housing 1 as a whole. In addition, a portion of the first adjustment member 192 is movably provided in the length direction of the housing 1, so that the portion of the first adjustment member 192 is telescopically provided in the length direction of the housing 1 relative to another portion of the first adjustment member 192.

[0045] As shown in Figure 1 and Figure 2As shown, the casing 1 further includes a second support member 193 and a second adjustment member 194, each of which is provided at the second side plate 12. The second support member 193 is connected to the second air deflector 182. At least a portion of the second adjustment member 194 is movably provided in the length direction of the casing 1, and the at least a portion of the second adjustment member 194 is connected to the second air deflector 182.

[0046] That is, the second adjustment member 194 can be movably provided in the length direction of the casing 1 as a whole. In addition, a portion of the second adjustment member 194 is movably provided in the length direction of the casing 1 so that the portion of the second adjustment member 194 is movably provided in the length direction of the casing 1 relative to another portion of the second adjustment member 194.

[0047] Accordingly, the inclination direction of the first air deflector 181 can be changed, and the angle of the first air deflector 181 with respect to the vertically downward direction and the vertically upward direction can be changed by moving the at least a portion of the first adjustment member 192 in the length direction of the casing 1. Also, the inclination direction of the second air deflector 182 can be changed, and the angle of the second air deflector 182 with respect to the vertically downward direction and the vertically upward direction can be changed by moving the at least a portion of the second adjustment member 194 in the length direction of the casing 1.

[0048] For example, when the air conditioning indoor unit 100 is not operated, the first air deflector 181 and the second air deflector 182 can be provided substantially vertically. When the air conditioning indoor unit 100 performs heating, the at least a portion of the first adjustment member 192 is moved in the length direction of the casing 1 toward the direction adjacent to the first side plate 11 (the second side plate 12) so that the first air deflector 181 is extended obliquely downward, and the at least a portion of the second adjustment member 194 is moved in the length direction of the casing 1 toward the direction adjacent to the second side plate 12 (the first side plate 11) so that the second air deflector 182 is extended obliquely downward.

[0049] When the air conditioning indoor unit 100 performs cooling, the at least a portion of the first adjustment member 192 is moved in the length direction of the casing 1 toward the direction away from the first side plate 11 (the second side plate 12) so that the first air deflector 181 is extended obliquely upward, and the at least a portion of the second adjustment member 194 is moved in the length direction of the casing 1 toward the direction away from the second side plate 12 (the first side plate 11) so that the second air deflector 182 is extended obliquely upward.

[0050] Optionally, the at least one part of the first adjusting member 192 is hinged with the first air deflector 181, and the first supporting member 191 is hinged with the first air deflector 181. In this way, the structure of the casing 1 can be more reasonable. The at least one part of the second adjusting member 194 is hinged with the second air deflector 182, and the second supporting member 193 is hinged with the second air deflector 182. In this way, the structure of the casing 1 can be more reasonable.

[0051] As shown in Figure 1 and Figure 2 , the rotation axis of the first air deflector 181 extends along the width direction of the casing 1. The casing 1 comprises two first supporting members 191, which are arranged in the width direction of the casing 1. The first adjusting member 192 is located between the two first supporting members 191 in the width direction of the casing 1, and the first adjusting member 192 is located above the two first supporting members 191. In this way, the structure of the casing 1 can be more reasonable.

[0052] Specifically, the at least one part of the first adjusting member 192 is hinged with the upper end of the first air deflector 181, and each first supporting member 191 is hinged with the lower end of the first air deflector 181. In this way, the structure of the casing 1 can be more reasonable.

[0053] As shown in Figure 1 and Figure 2 , the rotation axis of the second air deflector 182 extends along the width direction of the casing 1. The casing 1 comprises two second supporting members 193, which are arranged in the width direction of the casing 1. The second adjusting member 194 is located between the two second supporting members 193 in the width direction of the casing 1, and the second adjusting member 194 is located above the two second supporting members 193. In this way, the structure of the casing 1 can be more reasonable.

[0054] Specifically, the at least one part of the second adjusting member 194 is hinged with the upper end of the second air deflector 182, and each second supporting member 193 is hinged with the lower end of the second air deflector 182. In this way, the structure of the casing 1 can be more reasonable.

[0055] As shown in Figures 2-4 , the fan comprises a first fan 21 and a second fan 22, the air outlet side of the first fan 21 is matched with the first air outlet 111 of the casing 1, and the air outlet side of the second fan 22 is matched with the second air outlet 121 of the casing 1. In this way, the air volume of the air conditioner indoor unit 100 can be further increased, so that the cold air and hot air blown out by the air conditioner indoor unit 100 can more fully and quickly cover the entire room, and the refrigeration and heating effect can be improved.

[0056] Optionally, the first fan 21 is a first axial fan, and the second fan 22 is a second axial fan. The axial fan has the advantages of low pressure and high air volume. By making the first fan 21 and the second fan 22 axial fans, the air volume of the first fan 21 and the second fan 22 can be greatly improved, the energy consumption of the first fan 21 and the second fan 22 (the air conditioner indoor unit 100) can be reduced, the cold air and the hot air blown by the air conditioner indoor unit 100 can be more fully and more quickly covered in the entire room, and the refrigeration and heating effects of the air conditioner indoor unit 100 are further improved.

[0057] As shown in Figures 2-4 , the first fan 21 includes a plurality of first axial fans, and the plurality of first axial fans are coaxially arranged. The second fan 22 includes a plurality of second axial fans, and the plurality of second axial fans are coaxially arranged. That is, the first fan 21 has a multi-stage fan structure, and the second fan 22 has a multi-stage fan structure. The multi-stage fan structure can significantly increase the static pressure and the dynamic pressure of the airflow outlet, so that the airflow can effectively overcome the resistance of the heat exchanger 3 to achieve long-distance air supply, so that the cold air and the hot air blown by the air conditioner indoor unit 100 can be more fully and more quickly covered in the entire room, and the refrigeration and heating effects of the air conditioner indoor unit 100 are further improved.

[0058] As shown in Figures 3-5 , the air conditioner indoor unit 100 further includes a first bearing support 41 and a first bearing 42, and the first fan 21 includes a first shaft 211, a first motor 212, and a plurality of first axial fan blade groups 213. The first bearing support 41 is arranged on at least one of the rear plate 14 and the top plate 151 of the cabinet 1, and the first bearing 42 is arranged on the first bearing support 41.

[0059] The first shaft 211 is supported by the first bearing 42, and the first shaft 211 extends along the length direction of the cabinet 1. The first motor 212 is connected with the first shaft 211. The plurality of first axial fan blade groups 213 are arranged on the first shaft 211 in the axial direction of the first shaft 211 (the length direction of the cabinet 1) and are spaced apart. By arranging the first bearing support 41, the first fan 21 can be more stably and more easily installed.

[0060] As shown in Figures 3-5 , the air conditioner indoor unit 100 further includes a second bearing support 43 and a second bearing 44, and the second fan 22 includes a second shaft 221, a second motor 222, and a plurality of second axial fan blade groups 223. The second bearing support 43 is arranged on at least one of the rear plate 14 and the top plate 151, and the second bearing 44 is arranged on the second bearing support 43.

[0061] The second shaft 221 is supported by the second bearing 44, and extends along the length direction of the casing 1. The second motor 222 is connected to the second shaft 221. A plurality of second axial flow blade groups 223 are arranged on the second shaft 221 at intervals in the axial direction of the second shaft 221 (the length direction of the casing 1). By arranging the second bearing support 43, the second fan 22 can be more stably and easily installed.

[0062] Optionally, the first motor 212 is located between the plurality of first axial flow blade groups 213 and the plurality of second axial flow blade groups 223 in the axial direction of the first shaft 211. The second motor 222 is located between the plurality of first axial flow blade groups 213 and the plurality of second axial flow blade groups 223 in the axial direction of the second shaft 221. In this way, the first motor 212 does not block the airflow output by the plurality of first axial flow blade groups 213, and the second motor 222 does not block the airflow output by the plurality of second axial flow blade groups 223, so that the structure of the air conditioner indoor unit 100 can be more reasonable.

[0063] Optionally, the first bearing support 41 and the first bearing 42 are located between two adjacent first axial flow blade groups 213 in the axial direction of the first shaft 211. In this way, the first fan 21 can be more stably installed. The second bearing support 43 and the second bearing 44 are located between two adjacent second axial flow blade groups 223 in the axial direction of the second shaft 221. In this way, the second fan 22 can be more stably installed.

[0064] As shown in Figure 2 and Figure 3 The heat exchanger 3 includes a first side heat exchange portion 31, a second side heat exchange portion 32, and a lower heat exchange portion 33. The first side heat exchange portion 31 is located between the air outlet side of the first fan 21 and the first air outlet 111, and the second side heat exchange portion 32 is located between the air outlet side of the second fan 22 and the second air outlet 121. The lower heat exchange portion 33 is located between the second air inlet 17 of the casing 1 and the air inlet side of each of the first fan 21 and the second fan 22 in the height direction of the casing 1.

[0065] That is, the lower heat exchange portion 33 is located between the second air inlet 17 of the casing 1 and the air inlet side of the first fan 21 in the height direction of the casing 1, and the lower heat exchange portion 33 is located between the second air inlet 17 of the casing 1 and the air inlet side of the second fan 22 in the height direction of the casing 1.

[0066] Air entering the casing 1 through the second air inlet 17 first flows through the lower heat exchange section 33 and exchanges heat with it. A portion of the heat-exchanged air is then drawn in by the first fan 21, and subsequently output by the first fan 21, exchanging heat with the first side heat exchange section 31 to achieve secondary heat exchange. The remaining portion of the heat-exchanged air is drawn in by the second fan 22, and subsequently output by the second fan 22, exchanging heat with the second side heat exchange section 32 to achieve secondary heat exchange. This further improves the heat exchange efficiency of the heat exchanger 3, thereby further enhancing the cooling and heating performance of the indoor unit 100.

[0067] like Figure 2 and Figure 3 As shown, the heat exchanger 3 further includes an intermediate heat exchange section 34, which is opposite to the first air inlet 131 of the housing 1 in the width direction. A first fan 21 is located between the first side heat exchange section 31 and the intermediate heat exchange section 34 in the length direction of the housing 1, and a second fan 22 is located between the second side heat exchange section 32 and the intermediate heat exchange section 34 in the length direction of the housing 1.

[0068] In other words, the intermediate heat exchange section 34 is located between the first side heat exchange section 31 and the second side heat exchange section 32 along the length of the casing 1. Air entering the casing 1 from the first air inlet 131 first flows through the intermediate heat exchange section 34 and exchanges heat with it. A portion of the heat-exchanged air is drawn in by the first fan 21, and then this portion is output by the first fan 21 and exchanges heat with the first side heat exchange section 31, thus achieving secondary heat exchange. The other portion of the heat-exchanged air is drawn in by the second fan 22, and then this portion is output by the second fan 22 and exchanges heat with the second side heat exchange section 32, thus achieving secondary heat exchange. This further improves the heat exchange efficiency of the heat exchanger 3, thereby further improving the cooling and heating effect of the indoor unit 100.

[0069] like Figure 2 and Figure 3 As shown, the lower heat exchanger 33 is arranged horizontally or inclined, and has a first end 331 and a second end 332 opposite to each other in the length direction of the housing 1. Each of the first side heat exchanger 31, the second side heat exchanger 32, and the intermediate heat exchanger 34 is arranged vertically or inclined. The lower end 311 of the first side heat exchanger 31 is adjacent to the first end 331 of the lower heat exchanger 33, the lower end 321 of the second side heat exchanger 32 is adjacent to the second end 332 of the lower heat exchanger 33, and the lower end 341 of the intermediate heat exchanger 34 is adjacent to the middle part 333 of the lower heat exchanger 33. This makes the structure of the heat exchanger 3 more reasonable.

[0070] Optionally, the lower end 311 of the first side heat exchange part 31 is connected with the first end 331 of the lower heat exchange part 33, the lower end 321 of the second side heat exchange part 32 is connected with the second end 332 of the lower heat exchange part 33, and the lower end 341 of the middle heat exchange part 34 is connected with the middle part 333 of the lower heat exchange part 33. In this way, the structure of the heat exchanger 3 is more stable, and the heat exchanger 3 is easier to assemble.

[0071] As shown in Figure 2 and Figure 3 , the lower heat exchange part 33 is located above the second air inlet 17, and the lower heat exchange part 33 is located below the first fan 21 and the second fan 22. The first side plate 11, the first side heat exchange part 31, the first fan 21, the middle heat exchange part 34, the second fan 22, the second side heat exchange part 32 and the second side plate 12 are arranged in sequence in the length direction of the cabinet 1.

[0072] As shown in Figure 2 and Figure 3 , the thickness direction of each of the first side heat exchange part 31, the second side heat exchange part 32 and the middle heat exchange part 34 is consistent with the length direction of the cabinet 1. In this way, the first side heat exchange part 31, the second side heat exchange part 32 and the middle heat exchange part 34 can have a larger heat exchange area, thereby improving the heat exchange efficiency of the heat exchanger 3. Optionally, the heat exchanger 3 is generally in the shape of a "mountain".

[0073] As shown in Figure 2 and Figure 6 , the air conditioner indoor unit 100 further comprises a water collecting tray 5, and the water collecting tray 5 comprises a first plate 51 and a second plate 52. Each of the first plate 51 and the second plate 52 is arranged obliquely, and the lower end 511 of the first plate 51 is connected with the lower end 521 of the second plate 52. The included angle of the first plate 51 and the second plate 52 is greater than or equal to a preset value.

[0074] By making the included angle of the first plate 51 and the second plate 52 greater than or equal to the preset value, the overall water collecting tray 5 can be flat to reduce the height of the water collecting tray 5. In this way, the size of the heat exchanger 3 in the height direction of the cabinet 1 can be increased to increase the heat exchange area of the heat exchanger 3, or the installation difficulty of the heat exchanger 3 can be reduced due to the increase of the accommodation space of the heat exchanger 3. In addition, the height of the cabinet 1 and the air conditioner indoor unit 100 can be reduced while the size of the heat exchanger 3 is basically maintained, so as to reduce the space occupied by the cabinet 1 and the air conditioner indoor unit 100.

[0075] As shown in Figure 2 and Figure 6As shown, the water pan 5 further comprises a third plate 53 and a fourth plate 54. The third plate 53 is obliquely or vertically arranged, and a lower end 531 of the third plate 53 is connected with the upper end 512 of the first plate 51. The fourth plate 54 is obliquely or vertically arranged, and a lower end 541 of the fourth plate 54 is connected with the upper end 522 of the second plate 52.

[0076] The lower heat exchange portion 33 has a third end 334 and a fourth end opposite in the width direction of the casing 1. The third end 334 of the lower heat exchange portion 33 is adjacent to the upper end 512 of the first plate 51 in the width direction of the casing 1, and the fourth end of the lower heat exchange portion 33 is adjacent to the upper end 522 of the second plate 52 in the width direction of the casing 1.

[0077] By arranging the third plate 53 and the fourth plate 54, the depth of the water pan 5 can be increased to increase the capacity of the water pan 5 and prevent the condensed water from overflowing the water pan 5 in the case of increasing the size of the heat exchanger 3 in the height direction of the casing 1, increasing the accommodation space of the heat exchanger 3, or reducing the height of the casing 1 and the air conditioner indoor unit 100.

[0078] As shown in Figs. Figure 2 and Figure 6 The first plate 51 is located in front of the second plate 52. The third end 334 (front end) of the lower heat exchange portion 33 is generally flush with the upper end 512 of the first plate 51 in the width direction of the casing 1, and the fourth end (rear end) of the lower heat exchange portion 33 is generally flush with the upper end 522 of the second plate 52 in the width direction of the casing 1.

[0079] The third plate 53 is obliquely arranged, and the third plate 53 obliquely extends forward and upward from the upper end 512 of the first plate 51. The fourth plate 54 is obliquely arranged, and the fourth plate 54 obliquely extends rearward and upward from the upper end 522 of the second plate 52. The upper end 532 of the third plate 53 and the upper end 542 of the fourth plate 54 are both located above the lower edge (lower surface) of the lower heat exchange portion 33.

[0080] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0081] In addition, the terms "first", "second", "third", etc. are used herein only to describe various circumstances, and are not to be construed as indicating or implying relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0082] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or communicate with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0083] In the present application, unless otherwise specifically defined and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0084] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In the description, the illustrative representation of the above terms is not necessarily directed to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0085] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. An air conditioner indoor unit characterized by comprising: Comprise: a cabinet, the cabinet comprising a first side plate, a second side plate, a front plate and a back plate, the first side plate and the second side plate being oppositely arranged in a length direction of the cabinet, the first side plate being provided with a first air outlet, the second side plate being provided with a second air outlet, the front plate and the back plate being oppositely arranged in a width direction of the cabinet, the front plate being provided with a first air inlet; and a fan and a heat exchanger, each of the fan and the heat exchanger being arranged in the cabinet.

2. The indoor unit of the air conditioner according to claim 1, characterized in that: the first air outlet is arranged at an upper portion of the first side plate, and the second air outlet is arranged at an upper portion of the second side plate; or the first air inlet is arranged at an upper portion of the front plate, and the first air inlet extends along the length direction of the cabinet; or the back plate comprises a back frame portion, an upper plate portion and a lower plate portion, the upper plate portion being arranged at the back frame portion, and the lower plate portion being arranged at the back frame portion, wherein the lower plate portion is connected with the upper plate portion, the lower plate portion is arranged obliquely, a lower edge of the lower plate portion is located in front of an upper edge of the lower plate portion, and each of the lower plate portion and a bottom plate of the cabinet is provided with a second air inlet. 3.The indoor unit of the air conditioner according to claim 1, characterized by, The fan comprises a first fan and a second fan, an air outlet side of the first fan is matched with the first air outlet, and an air outlet side of the second fan is matched with the second air outlet. 4.The indoor unit of the air conditioner according to claim 3, characterized by, The first fan comprises a plurality of first axial flow fans, and the plurality of first axial flow fans are coaxially arranged, the second fan comprises a plurality of second axial flow fans, and the plurality of second axial flow fans are coaxially arranged. 5.The indoor unit of the air conditioner according to claim 4, characterized by, Further comprise: a first bearing support and a first bearing, the first bearing support being arranged at at least one of a back plate and a top plate of the cabinet, and the first bearing being arranged at the first bearing support, wherein the first fan comprises a first shaft, a first motor and a plurality of first axial flow blade groups, the first shaft is supported by the first bearing and extends along the length direction of the cabinet, the first motor is connected with the first shaft, and the plurality of first axial flow blade groups are arranged at the first shaft in an axial direction of the first shaft; and a second bearing support and a second bearing, the second bearing support being arranged at at least one of the back plate and the top plate, and the second bearing being arranged at the second bearing support, wherein the second fan comprises a second shaft, a second motor and a plurality of second axial flow blade groups, the second shaft is supported by the second bearing and extends along the length direction of the cabinet, the second motor is connected with the second shaft, and the plurality of second axial flow blade groups are arranged at the second shaft in an axial direction of the second shaft. 6.The indoor unit of the air conditioner according to claim 3, characterized in that, The heat exchanger comprises: a first side heat exchange portion, the first side heat exchange portion being located between an air outlet side of the first fan and the first air outlet; a second side heat exchange portion, the second side heat exchange portion being located between an air outlet side of the second fan and the second air outlet; and a lower heat exchange portion, the lower heat exchange portion being located between a second air inlet of the cabinet and an air inlet side of each of the first fan and the second fan in a height direction of the cabinet. 7.The indoor unit of the air conditioner according to claim 6, characterized by, The heat exchanger further comprises a middle heat exchange portion opposite to the first air inlet of the casing in the width direction of the casing, wherein the first fan is located between the first side heat exchange portion and the middle heat exchange portion in the length direction of the casing, and the second fan is located between the second side heat exchange portion and the middle heat exchange portion in the length direction of the casing. 8.The indoor unit of the air conditioner according to claim 7, characterized by, The lower heat exchange portion is horizontally or obliquely arranged, and has a first end portion and a second end portion opposite to each other in the length direction of the casing, and each of the first side heat exchange portion, the second side heat exchange portion and the middle heat exchange portion is vertically or obliquely arranged, wherein a lower end portion of the first side heat exchange portion is adjacent to the first end portion of the lower heat exchange portion, a lower end portion of the second side heat exchange portion is adjacent to the second end portion of the lower heat exchange portion, and a lower end portion of the middle heat exchange portion is adjacent to a middle portion of the lower heat exchange portion; and / or a thickness direction of each of the first side heat exchange portion, the second side heat exchange portion and the middle heat exchange portion is consistent with the length direction of the casing. 9.The indoor unit of the air conditioner according to claim 6, characterized by, Further comprising a water collecting tray comprising a first plate and a second plate, each of the first plate and the second plate is obliquely arranged, a lower end portion of the first plate is connected with a lower end portion of the second plate, and an included angle of the first plate and the second plate is greater than or equal to a preset value. 10.The indoor unit of the air conditioner according to claim 9, characterized by, The water collecting tray further comprises: a third plate obliquely or vertically arranged, a lower end portion of the third plate is connected with an upper end portion of the first plate; and a fourth plate obliquely or vertically arranged, a lower end portion of the fourth plate is connected with an upper end portion of the second plate, wherein the lower heat exchange portion has a third end portion and a fourth end portion opposite to each other in the width direction of the casing, the third end portion of the lower heat exchange portion is adjacent to the upper end portion of the first plate in the width direction of the casing, and the fourth end portion of the lower heat exchange portion is adjacent to the upper end portion of the second plate in the width direction of the casing.

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