CN215723666U - Indoor machine of air conditioner - Google Patents

Abstract

The utility model discloses an indoor unit of an air conditioner, which comprises: the air conditioner comprises a machine shell, a fan and a control device, wherein the machine shell is provided with a front air outlet, a side air outlet and a lower air outlet; an indoor heat exchanger; the air duct piece is limited with a first air duct, a second air duct and a third air duct which are sequentially arranged along the up-down direction, the first air duct is communicated with the front air outlet, the second air duct is communicated with the side air outlet, the third air duct is respectively communicated with the side air outlet and the lower air outlet, and the air duct piece is arranged in an air guide hole which is communicated with the first air duct and the second air duct; the axial flow fan is characterized in that the axial position of the positive air outlet corresponds to that of the axial flow fan; the side air outlet of the first centrifugal fan is arranged on two radial sides of the first centrifugal fan and the second centrifugal fan, and the lower air outlet is arranged below the second centrifugal fan and is the same as the orientation of the front air outlet. The air conditioner indoor unit provided by the embodiment of the utility model not only can realize multi-dimensional air supply, but also has the advantages of large air outlet area, long air supply distance and the like.

Description

Indoor machine of air conditioner

Technical Field

The utility model relates to the field of air conditioning equipment, in particular to an air conditioner indoor unit.

Background

The air conditioner indoor unit in the related art usually comprises a shell, an air duct piece and a centrifugal fan, the air conditioner indoor unit can only supply air at a single position and at a single angle in the air supply process, the air supply difference is small, the air conditioner indoor unit in the related art adjusts the air direction of the air supply through a baffle, but the adjusting range of the adjusting mode is limited, the air supply requirement in a large range is difficult to realize, and the air speed and the air pressure loss are large when the air flow direction is adjusted, so that the air supply is difficult to realize in a long distance.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, an object of the present invention is to provide an air conditioner indoor unit, which not only can implement multidimensional air supply, but also has the advantages of large air outlet area, long air supply distance, and the like.

In order to achieve the above object, an air conditioner indoor unit according to an embodiment of the present invention includes: the air conditioner comprises a machine shell, a fan and a control device, wherein the machine shell is provided with a front air outlet, a side air outlet and a lower air outlet; the indoor heat exchanger is arranged in the shell; the air duct piece is arranged in the shell and positioned in front of the indoor heat exchanger, a first air duct, a second air duct and a third air duct are defined by the air duct piece, the first air duct, the second air duct and the third air duct are sequentially arranged in the vertical direction, the first air duct is communicated with the front air outlet, the second air duct is communicated with the side air outlet, the third air duct is respectively communicated with the side air outlet and the lower air outlet, and the air duct piece is arranged in an air guide hole which is communicated with the first air duct and the second air duct; the axial flow fan is arranged in the first air duct, and the axial position of the positive air outlet corresponds to that of the axial flow fan; first centrifugal fan and second centrifugal fan, first centrifugal fan locates in the second wind channel, the second centrifugal fan locates in the third wind channel, the side air outlet is located first centrifugal fan with the radial both sides of second centrifugal fan, the air outlet is located down second centrifugal fan's below and with the orientation of positive air outlet is the same.

The air conditioner indoor unit provided by the embodiment of the utility model not only can realize multi-dimensional air supply, but also has the advantages of large air outlet area, long air supply distance and the like.

According to some embodiments of the utility model, the air guiding hole is located on a side of the axial flow fan facing the positive air outlet.

According to some embodiments of the utility model, the air guiding hole is adjacent to one side of the air duct member in the width direction of the air duct member so as to correspond to the air outlet direction of the first centrifugal fan.

According to some embodiments of the utility model, the first centrifugal fan and the second centrifugal fan are both forward-facing centrifugal fans; the air duct piece is provided with a first mounting opening, the first mounting opening is positioned on one side, facing away from the indoor heat exchanger, of the first centrifugal fan in the axial direction, and the first centrifugal fan is provided with a first mounting plate matched with the first mounting opening; the air duct piece is provided with a second mounting hole, the second mounting hole is located on one side, facing away from the indoor heat exchanger, of the second centrifugal fan in the axial direction, and the second centrifugal fan is provided with a second mounting plate matched with the second mounting hole.

According to some embodiments of the utility model, the air duct comprises: the first air channel is arranged on the upper air channel piece, the upper air channel piece is provided with an opening, the opening corresponds to the position of the positive air outlet, and the axial flow fan is arranged on the upper air channel piece; the middle air duct piece is connected below the upper air duct piece, the second air duct is arranged on the middle air duct piece, the middle air duct piece is provided with a first side air outlet, the first side air outlet is positioned at two radial sides of a first centrifugal fan and is communicated with the side air outlet, and the first centrifugal fan is arranged on the middle air duct piece; the lower air duct piece is connected below the middle air duct piece, the third air duct is arranged below the lower air duct piece, the lower air duct piece is provided with a second side air outlet and a lower air duct air outlet, the second side air outlet is located on two radial sides of the second centrifugal fan and communicated with the side air outlet, the lower air duct air outlet is located below the second centrifugal fan and communicated with the lower air outlet, and the second centrifugal fan is installed on the lower air duct piece. The air guide hole is formed in at least one of the upper air duct piece and the middle air duct piece.

According to some embodiments of the present invention, the middle air duct member is provided with a first air guiding portion and a second air guiding portion, the first air guiding portion and the second air guiding portion are located at two radial sides of the first centrifugal fan, the first air guiding portion is located above the second air guiding portion, and the first air guiding portion and the second air guiding portion guide the air flow of the first centrifugal fan to the side air outlet along the circumferential direction of the first centrifugal fan; the lower air duct piece is provided with a third air guide part, a fourth air guide part and a fifth air guide part, the fourth air guide part and the fifth air guide part are located on two radial sides of the second centrifugal fan, the third air guide part is located above the fourth air guide part and the fifth air guide part, the third air guide part and the fourth air guide part guide the airflow of the second centrifugal fan to the side air outlet along the circumferential direction of the second centrifugal fan, and the fifth air guide part guides the airflow of the second centrifugal fan to the lower air outlet along the circumferential direction of the second centrifugal fan.

According to some embodiments of the present invention, the indoor unit of an air conditioner further comprises: the first air deflector is rotatably arranged on the upper air duct piece to open and close the opening, and the rotating axis of the first air deflector extends along the left-right direction; the second air deflector is rotatably arranged at the middle air duct piece so as to open and close the first side air outlet, and the rotation axis of the second air deflector extends along the vertical direction; and the third air guide plate is rotatably arranged at the lower air duct piece so as to open and close the second side air outlet, and the rotating axis of the third air guide plate extends along the vertical direction.

According to some embodiments of the utility model, the second air deflector and the third air deflector located on the same side of the air duct member are integrally formed.

According to some embodiments of the present invention, the indoor unit of an air conditioner further comprises: a baffle movably mounted to the lower duct member to open and close the lower duct outlet.

According to some embodiments of the present invention, the axial flow fan, the first centrifugal fan, and the second centrifugal fan have rotation axes located in the same vertical plane, and the axial flow fan, the first centrifugal fan, and the second centrifugal fan are located at the same distance from the indoor heat exchanger in the front-rear direction.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention.

Fig. 2 is an exploded view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 3 is an exploded view of an air duct, a fan and an indoor heat exchanger of an indoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 4 is a schematic view illustrating the assembly of the air duct and the fan of the indoor unit of the air conditioner according to the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an air duct of an indoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 6 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Reference numerals:

an indoor machine 1 of an air conditioner,

A casing 100, a front air outlet 110, a side air outlet 120, a lower air outlet 130, an indoor heat exchanger 200,

The air duct member 300, the upper air duct member 310, the first air duct 311, the opening 312, the middle air duct member 320, the second air duct 321, the first air guiding portion 322, the second air guiding portion 323, the first side air outlet 324, the lower air duct member 330, the third air duct 331, the third air guiding portion 332, the fourth air guiding portion 333, the fifth air guiding portion 334, the second side air outlet 335, the lower air duct air outlet 336, the air guiding hole 340, the first mounting hole 350, the first mounting plate 351, the second mounting hole 360, the second mounting plate 361, the axial flow fan 400, the first centrifugal fan 510, the second centrifugal fan 520, the axial flow fan 400, the axial flow fan, the fan housing, the fan, the housing, the fan, the housing, the fan, the housing, the fan housing, the fan, and the fan, the fan housing, the fan, and the,

The air guide plate comprises a first air guide plate 600, a second air guide plate 610, a third air guide plate 620 and a baffle plate 700.

Detailed Description

Embodiments of the present invention will be described in detail below, the embodiments described with reference to the drawings being illustrative, and the embodiments of the present invention will be described in detail below.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

In the description of the present invention, "a plurality" means two or more.

An air conditioner indoor unit 1 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

As shown in fig. 1 to 6, the indoor unit 1 of the air conditioner includes a cabinet 100, an indoor heat exchanger 200, an air duct 300, an axial flow fan 400, a first centrifugal fan 510, and a second centrifugal fan 520.

The casing 100 is provided with a front air outlet 110, a side air outlet 120 and a lower air outlet 130, the indoor heat exchanger 200 is arranged in the casing 100, the air duct 300 is arranged in the casing 100 and located in front of the indoor heat exchanger 200, the air duct 300 is limited to a first air duct 311, a second air duct 321 and a third air duct 331 which are sequentially arranged along the up-down direction, the first air duct 311 is communicated with the front air outlet 110, the second air duct 321 is communicated with the side air outlet 120, the third air duct 331 is respectively communicated with the side air outlet 120 and the lower air outlet 130, and the air duct 300 is arranged in an air guide hole 340 which is communicated with the first air duct 311 and the second air duct 321. The axial flow fan 400 is arranged in the first air duct 311, the axial position of the positive air outlet 110 corresponds to that of the axial flow fan 400, the first centrifugal fan 510 is arranged in the second air duct 321, the second centrifugal fan 520 is arranged in the third air duct 331, the side air outlets 120 are arranged at two radial sides of the first centrifugal fan 510 and the second centrifugal fan 520, and the lower air outlet 130 is arranged below the second centrifugal fan 520 and has the same orientation as that of the positive air outlet 110.

For example, the front outlet 110 and the lower outlet 130 are disposed on the front surface of the cabinet 100, and the side outlets 120 are disposed on the left and right sides of the cabinet 100. The air conditioner indoor unit 1 is a floor air conditioner indoor unit.

According to the air conditioner indoor unit 1 of the embodiment of the present invention, the casing 100 is provided with the front air outlet 110, the side air outlet 120 and the lower air outlet 130, the indoor heat exchanger 200 is disposed in the casing 100, the air duct 300 is disposed in the casing 100 and located in front of the indoor heat exchanger 200, the indoor air flows to the air duct 300 after being heat exchanged by the indoor heat exchanger 1, and then the air duct 300 respectively guides the air flow to the front air outlet 110, the side air outlet 120 and the lower air outlet 130 of the casing 100, so as to achieve heat exchange with the indoor air, and control the outlet air temperatures of the front air outlet 110, the side air outlet 120 and the lower air outlet 130, so as to achieve adjustment of the indoor temperature.

Moreover, the first air duct 311, the second air duct 321 and the third air duct 331 of the air duct 300 are sequentially arranged along the up-down direction of the air duct 300, the axial flow fan 400 is disposed in the first air duct 311, and the positive air outlet 110 corresponds to the axial position of the axial flow fan 400, so that the axial flow fan 400 can output air from the upper portion of the indoor unit 1 of the air conditioner, and the air flow generated by the axial flow fan 400 is softer, so that the wind feeling felt by a user can be softer.

In addition, the first centrifugal fan 510 is disposed in the second air duct 321, the second centrifugal fan 520 is disposed in the third air duct 331, the second air duct 321 is communicated with the side air outlet 120, and the third air duct 331 is respectively communicated with the side air outlet 120 and the lower air outlet 130. First centrifugal fan 510 can follow the middle part air-out of air conditioner 1, and second centrifuge 520 can follow the lower part air-out of air conditioner 1, and the air-out of first centrifugal fan 510 and second centrifugal fan 520 is comparatively concentrated, can realize concentrating the air-out at the side air outlet 120 of casing 100, realizes the long-distance air supply effect of embracing, and simultaneously, second centrifugal fan 520 can also follow the air-out of lower air outlet 130 air-out, has further increased air conditioner 1's the air-out amount of wind. Therefore, the air conditioner indoor unit 1 can realize air outlet at a plurality of positions, namely the upper position, the middle position and the lower position, so that the air outlet area of the air conditioner indoor unit 1 is larger. And when the air conditioner indoor unit 1 is in the heating mode, air can be discharged from the lower air outlet 130, so that hot air moves from bottom to top, and good hot air experience can be obtained indoors and below.

Meanwhile, the air duct 300 is provided with an air guiding hole 340 communicating the first air duct 311 and the second air duct 321, so that the air flow of the first centrifugal fan 510 can also flow into the first air duct 311 through the air guiding hole 340 and then blow into the room through the positive air outlet 110. In this way, when the air conditioner indoor unit 1 is in the heating mode, the air flows in the first air duct 311 and the second air duct 321 may be mixed with each other to improve the outlet air temperature; when the indoor unit 1 of the air conditioner is in the cooling mode, the air flow of the air guide hole 340 can drive the air outlet of the positive air outlet 110 to move upwards, so that the air supply distance can be increased.

Therefore, the air conditioner indoor unit 1 according to the embodiment of the utility model not only can realize multidimensional air supply, but also has the advantages of large air outlet area, long air supply distance and the like.

According to some embodiments of the present invention, as shown in fig. 2, 3 and 5, the air guide hole 340 is located on a side of the axial flow fan 400 facing the positive air outlet 110, that is, in the front-rear direction, and the air guide hole 340 is located between the axial flow fan 400 and the positive air outlet 110.

It can be understood that the axial flow fan 400 discharges air from the positive air outlet 110, the first centrifugal fan 510 can enter the first air duct 311 from the air guiding hole 340, the arrangement can make the air guiding hole 340 closer to the positive air outlet 110, and the air flow of the first centrifugal fan 510 can be merged with the air flow discharged from the axial flow fan 400 after being discharged from the air guiding hole 340, so as to ensure that the air discharge of the first centrifugal fan 510 and the air discharge of the axial flow fan 400 are better merged, and the air discharge is more concentrated.

Further, as shown in fig. 2 and 5, the air guiding hole 340 is adjacent to one side of the air duct 300 in the width direction of the air duct 300 to correspond to the air outlet direction of the first centrifugal fan 510.

For example, when the air conditioner indoor unit 1 is viewed from the rear side, the first centrifugal fan 519 rotates clockwise, at this time, the air flow of the first centrifugal fan 510 is more likely to blow air upwards from a position close to the left side of the air duct 300, the air guide hole 340 is disposed in the width direction of the air duct 300 and close to the left side of the air duct 300, which can better correspond to the air outlet direction of the first centrifugal fan 510, so that the air flow of the first centrifugal fan 510 can be sent into the first air duct 311 through the air guide hole 340 and then blown into the room through the front air outlet 110, and the air outlet efficiency of the first centrifugal fan 510 through the air guide hole 340 is further ensured.

According to some embodiments of the present invention, as shown in FIG. 3, both the first centrifugal fan 510 and the second centrifugal fan 520 are forward centrifugal fans. Wherein, the wind pressure that the preceding centrifugal fan produced is great, is suitable for the regional air supply of comparatively concentrating.

Specifically, the air duct member 300 is provided with a first mounting port 350, the first mounting port 350 is located on a side of the first centrifugal fan 510 facing away from the indoor heat exchanger 200 in the axial direction, and the first centrifugal fan 510 is provided with a first mounting plate 351 fitted to the first mounting port 350. The air duct member 300 is provided with a second mounting opening 360, the second mounting opening 360 is located on one side of the second centrifugal fan 520 facing away from the indoor heat exchanger 200 in the axial direction, and the second centrifugal fan 520 is provided with a second mounting plate 361 fitted to the second mounting opening 360.

Thus, the first centrifugal fan 510 may be fitted into the air duct member 300 from the first mounting opening 350, the first mounting plate 351 may fix the first centrifugal fan 510 and cover the first mounting opening 350, the second centrifugal fan 520 may be fitted into the air duct member 300 from the second mounting opening 360, and the second mounting plate 361 may fix the second centrifugal fan 520 and cover the second mounting opening 360.

Because first mounting panel 351 and second mounting panel 361 are located the one side of wind channel spare 300 dorsad indoor heat exchanger 200 respectively, first mounting panel 351 and second mounting panel 361 can not shelter from the gas entering wind channel spare 300 with after the heat transfer of indoor heat exchanger 200 to the air-out that makes through first centrifugal fan 510 and second centrifugal fan 520 guide is the gas with after the heat transfer of indoor heat exchanger 200, thereby guarantees that the air-out of wind channel spare 300 all has the effect of adjusting the temperature.

Moreover, the first mounting plate 351 provides a mounting carrier for the first centrifugal fan 510, so that the positions of the first centrifugal fan 510 and the air duct member 300 are kept fixed, and the second mounting plate 361 provides a mounting carrier for the second centrifugal fan 520, so that the positions of the second centrifugal fan 520 and the air duct member 300 are kept fixed, thereby ensuring the firm mounting of the first centrifugal fan 510 and the second centrifugal fan 520.

According to some embodiments of the present invention, as shown in fig. 4, the air duct 300 includes an upper air duct 310, an intermediate air duct 320, and a lower air duct 330.

The first air duct 311 is disposed on the upper air duct 310, the upper air duct 310 is provided with an opening 312, the opening 312 corresponds to the position of the positive air outlet 110, and the axial flow fan 400 is mounted on the upper air duct 310.

The middle air duct 320 is connected below the upper air duct 310, the second air duct 321 is disposed in the middle air duct 320, the middle air duct 320 is provided with a first side air outlet 324, the first side air outlet 324 is located at two radial sides of the first centrifugal fan 510 and is communicated with the side air outlet 120, and the first centrifugal fan 510 is mounted in the middle air duct 320.

The lower air duct 330 is connected below the middle air duct 320, the third air duct 331 is disposed on the lower air duct 330, the lower air duct 330 is provided with a second side air outlet 335 and a lower air outlet 336, the second side air outlet 335 is located at two radial sides of the second centrifugal fan 520 and is communicated with the side air outlet 120, the lower air outlet 336 is located below the second centrifugal fan 520 and is communicated with the lower air outlet 130, and the second centrifugal fan 520 is mounted on the lower air duct 330.

For example, the upper duct member 310, the middle duct member 320, and the lower duct member 330 are sequentially stacked from top to bottom, the upper duct member 310, the middle duct member 320, and the lower duct member 330 are adapted to the inner contour of the casing 100, and the opening 312 of the upper duct member 310 faces the positive air outlet 110, so that the wind generated by the axial flow fan 400 can be directly delivered to the room through the opening 312 and the positive air outlet 110. The middle air duct piece 320 is provided with the first side air outlet 324, and the first side air outlet 324 is communicated with the side air outlet 120 at two radial sides of the first centrifugal fan 510, so that the air flow generated by the first centrifugal fan 510 can be transmitted to the first side air outlet 324 and the side air outlet 120 through the second air duct 321 defined by the middle air duct piece 320, and the air flow in the middle air duct piece 320 is smoother. The lower air duct member 330 is provided with a second side air outlet 335 and a lower air duct air outlet 336, the second side air outlet 335 is located at two radial sides of the second centrifugal fan 520 and is communicated with the side air outlet 120, and the lower air duct air outlet 336 is located below the second centrifugal fan 520 and is communicated with the lower air outlet 130, so that the air flow generated by the second centrifugal fan 520 can be transmitted to the second side air outlet 335, the side air outlet 120, the lower air duct air outlet 336 and the lower air outlet 130 through a third air duct 331 defined by the lower air duct member 330.

The upper air duct 310, the middle air duct 320 and the lower air duct 330 can guide air independently, so that mutual interference of air flow is avoided, and air guiding is smoother.

Further, the upper duct member 310, the middle duct member 320, and the lower duct member 330 are integrally molded. Thus, not only the number of parts can be reduced, but also the steps of processing and assembling and disassembling can be simplified, and the assembling positions of the upper duct member 310, the middle duct member 320, and the lower duct member 330 with the axial flow fan 400, the first centrifugal fan 510, and the second centrifugal fan 520 in the casing 100 can be made more accurate.

The air guiding hole 340 is disposed on at least one of the upper air duct 310 and the middle air duct 320. For example, the air guiding hole 340 may be formed on the middle air duct 320, or both the upper air duct 310 and the middle air duct 320 of the air guiding hole 340 are provided with the air guiding hole 340, and the air guiding hole 340 can ensure the communication between the upper air duct 310 and the middle air duct 320 when being installed, so that the first centrifugal fan 510 can supply air into the upper air duct 310 from the air guiding hole 340.

According to some embodiments of the present invention, as shown in fig. 6, the middle air duct member 320 is provided with a first air guiding part 322 and a second air guiding part 323.

The first air guiding portion 322 and the second air guiding portion 323 are located at two radial sides of the first centrifugal machine 510, the first air guiding portion 322 is located above the second air guiding portion 323, and the first air guiding portion 322 and the second air guiding portion 323 guide the airflow of the first centrifugal machine 510 to the side air outlet 120 along the circumferential direction of the first centrifugal machine 510.

The lower air duct 330 is provided with a third air guiding portion 332, a fourth air guiding portion 333 and a fifth air guiding portion 334, the fourth air guiding portion 333 and the fifth air guiding portion 334 are located at two radial sides of the second centrifugal fan 520, the third air guiding portion 332 is located above the fourth air guiding portion 333 and the fifth air guiding portion 334, the third air guiding portion 332 and the fourth air guiding portion 333 guide the airflow of the second centrifugal fan 520 to the side air outlet 120 along the circumferential direction of the second centrifugal fan 520, and the fifth air guiding portion 334 guides the airflow of the second centrifugal fan 520 to the lower air outlet 130 along the circumferential direction of the second centrifugal fan 520.

For example, a side of the first wind guide portion 322 facing the first centrifuge 510 and a side of the second wind guide portion 323 facing the first centrifuge 510 are both configured to be arc-shaped. The middle air duct 320 makes the air flow generated by the first centrifuge 510 flow more smoothly in the middle air duct 320 by configuring the first air guiding portion 322 and the second air guiding portion 323. Moreover, the first air guiding portion 322 and the second air guiding portion 323 are respectively located at two radial sides of the first centrifuge 510, the air outlet direction of the middle air duct piece 320 is defined by the first air guiding portion 322 and the second air guiding portion 323, so that the air outlet direction is at the other two radial sides of the first centrifuge 510, the air flow in the middle air duct piece 320 respectively flows to the two sides along the first air guiding portion 322 and the second air guiding portion 323, and the air flow is guided to the side air outlet 120 through the first side air outlet 324, thereby achieving stronger wind sensation and realizing the effect of surrounding air supply.

The third air guiding part 332, the fourth air guiding part 333, and the fifth air guiding part 334 may be curved on the side facing the second centrifugal fan 520. The lower air duct 330 makes the airflow generated by the second centrifugal fan 520 flow more smoothly in the lower air duct 330 by constructing the third air guiding portion 332, the fourth air guiding portion 333 and the fifth air guiding portion 334. The third air guiding portion 332 is located above the fourth air guiding portion 333 and the fifth air guiding portion 334, and the third air guiding portion 332 guides the airflow generated by the second centrifugal fan 520 to the second side air outlet 335 on one side (for example, the right side) and then flows through the side air outlet 120. The fourth air guiding portion 333 guides the airflow generated by the second centrifugal fan 520 to the second side air outlet 335 on the other side (for example, on the left side) and then flows through to the other side air outlet 120. The fifth air guiding part 334 guides the air flow generated by the second centrifugal fan 520 to the lower air outlet 336 and then flows through to the lower air outlet 130, so that the air guiding function is provided at both sides and below of the second centrifugal fan 520 in the radial direction, and the large-range air outlet experience is realized.

According to some embodiments of the present invention, as shown in fig. 3, the air conditioner indoor unit 1 further includes a first wind deflector 600, a second wind deflector 610 and a third wind deflector 620.

The first air deflection plate 600 is rotatably installed at the upper duct member 310 to open and close the opening 312, and a rotation axis of the first air deflection plate 600 extends in a left-right direction. The second air deflector 610 is rotatably installed at the middle air duct 320 to open and close the first side air outlet 324, and a rotation axis of the second air deflector 610 extends in an up-and-down direction. The third air deflector 620 is rotatably installed at the lower duct member 330 to open and close the second side outlet 335, and a rotation axis of the third air deflector 620 extends in an up-and-down direction.

For example, when the indoor unit 1 of the air conditioner heats, hot air is blown out indoors, at this time, the first air deflector 600 can be rotated to control the front air outlet 110 to blow out air to the lower part of the front side, the hot air has a tendency of moving upwards, the downward air outlet can enable the overall indoor temperature to rise faster, the second air deflector 610 and the third air deflector 620 can control the air to blow out from the front of the left side and the front of the right side of the side air outlet 120, and therefore the air is blown out forwards in a manner that the two sides embrace; when the indoor unit 1 of the air conditioner is refrigerating, cold air is blown out into the room, at this time, the first air deflector 600 can be rotated to control the front air outlet 110 to blow out air to the upper front side, the air outlet of the air guiding hole 340 can drive the air outlet of the front air outlet 110 to move upwards, thus, the air outlet of the front air outlet 110 is farther, the cold air tends to move downwards, the whole indoor temperature can be reduced more quickly due to the upward air outlet, and the left front side and the right front side of the side air outlet 120 can be controlled by the second air deflector 610 and the third air deflector 620.

Therefore, the air direction of the air conditioner indoor unit 1 can be changed by rotating the first air deflector 600, the second air deflector 610 and the third air deflector 620, so that the air outlet direction can be changed under different temperature adjusting states of the air conditioner indoor unit 1, the room temperature can be adjusted more effectively, and one or more of the opening 312, the first side air outlet 324 and the second side air outlet 335 can be closed to adjust the air outlet volume.

Further, as shown in fig. 2 and 3, the indoor unit 1 of the air conditioner further includes a baffle 700, and the baffle 700 is movably mounted to the lower duct member 330 to open and close the lower duct outlet 336.

Wherein, because the hot-air has the trend of upward movement, consequently when air conditioner 1 goes out the hot-air, need increase the amount of wind of the air-out of air conditioner 1 lower part, baffle 700 can remove in order to open down wind channel air outlet 336 promptly, second side air outlet 335 is closed to third aviation baffle 620, air conditioner 1 heats indoor lower part air earlier like this, the air after the heating moves upwards, in order to heat indoor upper portion air, thereby the holistic temperature of indoor air is even, all obtain the heating, be favorable to satisfying user's demand. In addition, when the air conditioner indoor unit 1 blows out cold air, the baffle 700 may move to close the lower air outlet 336, and the second centrifugal fan 520 guides the air flow to blow out from the second side air outlet 335, so as to prevent the cold air from blowing forward, and increase the comfort of the air conditioner indoor unit 1.

Optionally, the second air deflector 610 and the third air deflector 620 located on the same side of the air duct 300 are integrally formed. After the second air deflector 610 and the third air deflector 620 are mounted, the second air deflector 610 and the third air deflector 620 do not need to be fixed respectively, so that the number of mounting parts required by the second air deflector 610 and the third air deflector 620 can be reduced, and the steps of mounting and dismounting are reduced. Moreover, the second air deflector 610 and the third air deflector 620 can move synchronously, and the second air deflector 610 and the third air deflector 620 do not need to be controlled independently, so that the air can be discharged from the first side air outlet 324 and the second side air outlet 335 in the same direction all the time, the uniformity of the air discharged from the side air outlet 120 is ensured, and the control structure can be simplified.

According to some embodiments of the present invention, as shown in fig. 3, the rotation axes of the axial flow fan 400, the first centrifugal fan 510, and the second centrifugal fan 520 are located in the same vertical plane, and the axial flow fan 400, the first centrifugal fan 510, and the second centrifugal fan 520 are located at the same distance from the indoor heat exchanger 200 in the front-rear direction.

In this way, after the air exchanges heat with the indoor heat exchanger 200, the air can flow toward the axial flow fan 400, the first centrifugal fan 510 and the second centrifugal fan 520 more uniformly under the guidance of the axial flow fan 400, the first centrifugal fan 510 and the second centrifugal fan 520, so that each fan can be in sufficient contact with the air flow, and the air guiding function of each fan can be exerted efficiently.

And, because the air conditioner indoor unit 1 is a floor air conditioner indoor unit, therefore the axial fan 400, the first centrifugal fan 510 and the second centrifugal fan 520 are arranged along the up-down direction, and the rotation axes of the axial fan 400, the first centrifugal fan 510 and the second centrifugal fan 520 are arranged in the same vertical plane, then the gravity centers of the axial fan 400, the first centrifugal fan 510 and the second centrifugal fan 520 are approximately located in the same vertical plane, thereby the condition of integral gravity center offset when the floor air conditioner indoor unit is placed can be reduced, and the placing stability of the floor air conditioner indoor unit is greatly improved.

Other constructions and operations of the indoor unit 1 of the air conditioner according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

An air conditioner including the air conditioner outdoor unit of the present application performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a high-temperature and high-pressure state and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The outdoor unit of the air conditioner refers to a portion of a refrigeration cycle including a compressor and an outdoor heat exchanger, the indoor unit of the air conditioner includes an indoor heat exchanger, and an expansion valve may be provided in the indoor unit or the outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. When the indoor heat exchanger is used as a condenser, the air conditioner is used as a heater in a heating mode, and when the indoor heat exchanger is used as an evaporator, the air conditioner is used as a cooler in a cooling mode.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An indoor unit for an air conditioner, comprising:

the air conditioner comprises a machine shell, a fan and a control device, wherein the machine shell is provided with a front air outlet, a side air outlet and a lower air outlet;

the indoor heat exchanger is arranged in the shell;

the air duct piece is arranged in the shell and positioned in front of the indoor heat exchanger, a first air duct, a second air duct and a third air duct are defined by the air duct piece and are sequentially arranged along the vertical direction, the first air duct is communicated with the front air outlet, the second air duct is communicated with the side air outlet, the third air duct is respectively communicated with the side air outlet and the lower air outlet, and the air duct piece is provided with an air guide hole communicated with the first air duct and the second air duct;

the axial flow fan is arranged in the first air duct, and the axial position of the positive air outlet corresponds to that of the axial flow fan;

first centrifugal fan and second centrifugal fan, first centrifugal fan locates in the second wind channel, the second centrifugal fan locates in the third wind channel, the side air outlet is located first centrifugal fan with the radial both sides of second centrifugal fan, the air outlet is located down second centrifugal fan's below and with the orientation of positive air outlet is the same.

2. The indoor unit of claim 1, wherein the air guide hole is positioned on a side of the axial flow fan facing the positive air outlet.

3. The indoor unit of claim 1, wherein the air guide hole is adjacent to one side of the air duct member in the width direction of the air duct member so as to correspond to the air outlet direction of the first centrifugal fan.

4. An indoor unit for an air conditioner according to claim 1, wherein the first centrifugal fan and the second centrifugal fan are both forward centrifugal fans;

the air duct piece is provided with a first mounting opening, the first mounting opening is positioned on one side, facing away from the indoor heat exchanger, of the first centrifugal fan in the axial direction, and the first centrifugal fan is provided with a first mounting plate matched with the first mounting opening;

the air duct piece is provided with a second mounting hole, the second mounting hole is located on one side, facing away from the indoor heat exchanger, of the second centrifugal fan in the axial direction, and the second centrifugal fan is provided with a second mounting plate matched with the second mounting hole.

5. An indoor unit for an air conditioner according to claim 1, wherein the air duct member comprises:

the first air channel is arranged on the upper air channel piece, the upper air channel piece is provided with an opening, the opening corresponds to the position of the positive air outlet, and the axial flow fan is arranged on the upper air channel piece;

the middle air duct piece is connected below the upper air duct piece, the second air duct is arranged on the middle air duct piece, the middle air duct piece is provided with a first side air outlet, the first side air outlet is positioned at two radial sides of a first centrifugal fan and is communicated with the side air outlet, and the first centrifugal fan is arranged on the middle air duct piece;

the lower air duct piece is connected below the middle air duct piece, the third air duct is arranged below the lower air duct piece, the lower air duct piece is provided with a second side air outlet and a lower air duct air outlet, the second side air outlet is located on two radial sides of the second centrifugal fan and communicated with the side air outlet, the lower air duct air outlet is located below the second centrifugal fan and communicated with the lower air outlet, and the second centrifugal fan is installed on the lower air duct piece.

The air guide hole is formed in at least one of the upper air duct piece and the middle air duct piece.

6. The indoor unit of claim 5, wherein the intermediate air duct member is provided with a first air guiding portion and a second air guiding portion, the first air guiding portion and the second air guiding portion are located at two radial sides of the first centrifugal fan, the first air guiding portion is located above the second air guiding portion, and the first air guiding portion and the second air guiding portion guide the airflow of the first centrifugal fan to the side air outlet along the circumferential direction of the first centrifugal fan;

the lower air duct piece is provided with a third air guide part, a fourth air guide part and a fifth air guide part, the fourth air guide part and the fifth air guide part are located on two radial sides of the second centrifugal fan, the third air guide part is located above the fourth air guide part and the fifth air guide part, the third air guide part and the fourth air guide part guide the airflow of the second centrifugal fan to the side air outlet along the circumferential direction of the second centrifugal fan, and the fifth air guide part guides the airflow of the second centrifugal fan to the lower air outlet along the circumferential direction of the second centrifugal fan.

7. An indoor unit for an air conditioner according to claim 5, further comprising:

the first air deflector is rotatably arranged on the upper air duct piece to open and close the opening, and the rotating axis of the first air deflector extends along the left-right direction;

the second air deflector is rotatably arranged at the middle air duct piece so as to open and close the first side air outlet, and the rotation axis of the second air deflector extends along the vertical direction;

and the third air guide plate is rotatably arranged at the lower air duct piece so as to open and close the second side air outlet, and the rotating axis of the third air guide plate extends along the vertical direction.

8. An indoor unit of an air conditioner according to claim 7, wherein the second air guiding plate and the third air guiding plate which is positioned on the same side of the air duct member are integrally formed.

9. An indoor unit for an air conditioner according to claim 5, further comprising:

a baffle movably mounted to the lower duct member to open and close the lower duct outlet.

10. An indoor unit of an air conditioner according to claim 1, wherein rotation axes of the axial flow fan, the first centrifugal fan and the second centrifugal fan are located in the same vertical plane, and distances between the axial flow fan, the first centrifugal fan and the second centrifugal fan and the indoor heat exchanger in the front-rear direction are the same.

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