CN221005258U - Indoor unit of air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioners, and discloses an air conditioner indoor unit, which comprises: the cross flow fan is used for driving the heat exchange air to flow, and an auxiliary air inlet communicated with the interior of the cross flow fan is arranged on the side wall of the cross flow fan along the axial direction of the cross flow fan; the driving end of the first motor is connected with the cross-flow fan; the air mixing fan is used for driving indoor air which does not undergo heat exchange to flow, and an air outlet of the air mixing fan is communicated with the auxiliary air inlet; the driving end of the second motor is connected with the connecting shaft of the air mixing fan. Indoor air driven by the air mixing fan is blown into the cross-flow fan along the axial direction of the cross-flow fan through the auxiliary air inlet. The heat exchange air passes through the cross-flow fan along the radial direction of the cross-flow fan, and the flow directions of the heat exchange air and the indoor air are different, so that the mixing effect of the indoor air and the heat exchange air can be improved in the mixing process of the indoor air and the heat exchange air. Thereby improving the uniformity of the temperature of the mixed air blown out by the indoor unit of the air conditioner and improving the use experience of users.

Description

Indoor unit of air conditioner

Technical Field

The application relates to the technical field of air conditioners, in particular to an air conditioner indoor unit.

Background

With the development of society and the continuous improvement of living standard of people, various air conditioners have become one of the indispensable electrical devices in the daily life of people. Various air conditioners can reduce or raise the ambient temperature when the ambient temperature is too high or too low, so that people can be in a more comfortable environment. However, in the process of using the air conditioner, since the air blown out by the air conditioner is obtained by heat exchange through the heat exchanger, especially in the refrigeration mode, the temperature of the air after heat exchange is low. When cold air or hot air after heat exchange is directly blown onto a user, the user can feel uncomfortable, and the use experience of the user is affected.

The related art discloses an air conditioner indoor unit, which comprises a base, a shell, a heat exchanger, a heat exchange fan and an indoor air module, wherein the base is provided with a heat exchange air outlet; the heat exchanger and the heat exchange fan are both arranged on the base and positioned in the shell; the indoor air module is arranged in the shell and is provided with an indoor air inlet and an indoor air outlet, the indoor air inlet corresponds to the indoor air suction opening in position, the indoor air outlet is adjacent to the heat exchange air outlet and is positioned above the heat exchange air outlet, and indoor air flowing out of the indoor air outlet is mixed with heat exchange air flowing out of the heat exchange air outlet and flows out of the indoor air supply outlet.

In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

In the related art, the indoor air outlet and the heat exchange air outlet are adjacently arranged, and the indoor air outlet is positioned above the heat exchange air outlet, so that the indoor air and the heat exchange air cannot be well mixed after flowing out respectively due to the fact that the air outlet direction of the indoor air outlet is consistent with the air outlet direction of the heat exchange air outlet, the condition of uneven temperature of the blown air is easy to occur, and the use experience of a user is reduced.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview, and is intended to neither identify key/critical elements nor delineate the scope of such embodiments, but is intended as a prelude to the more detailed description that follows.

The embodiment of the disclosure provides an air conditioner indoor unit to improve the mixing effect of indoor air and heat exchange air, thereby improving the uniformity of the temperature of the mixed air blown out by the air conditioner indoor unit and improving the use experience of a user.

According to an embodiment of the present application, there is provided an air conditioner indoor unit including: the cross flow fan is used for driving the heat exchange air to flow, and an auxiliary air inlet communicated with the interior of the cross flow fan is arranged on the side wall of the cross flow fan along the axial direction of the cross flow fan; the driving end of the first motor is connected with the cross-flow fan; the air mixing fan is used for driving indoor air which does not undergo heat exchange to flow, and an air outlet of the air mixing fan is communicated with the auxiliary air inlet; the driving end of the second motor is connected with the connecting shaft of the air mixing fan.

In some optional embodiments, the air mixing fan is disposed on a side of the cross-flow fan where the auxiliary air inlet is disposed, and the indoor unit of the air conditioner further includes: the spiral case is located to the through-flow fan in the spiral case, and the first axial lateral wall and the supplementary air intake of spiral case set up relatively, and first axial lateral wall is equipped with the installation component, and the second motor is connected with the installation component.

In some alternative embodiments, the first axial sidewall is provided with an air inlet opening through which the air mixing fan drives indoor air into the auxiliary air intake, and the mounting assembly includes: the mounting plate is connected with the inner side wall of the air inlet opening and is provided with a vent which is communicated with the air inlet opening; the installation is protruding, is connected with the mounting panel, and the second motor is protruding with the installation to be connected.

In some alternative embodiments, the second motor is disposed on one side of the mounting plate, the air mixing fan is disposed on the other side of the mounting plate, the mounting plate is provided with a through hole, and the driving end of the second motor is connected with the connecting shaft through the through hole, or the connecting shaft is connected with the second motor through the through hole.

In some alternative embodiments, the mounting boss is connected to a side wall of the mounting plate facing away from the auxiliary air intake.

In some alternative embodiments, the mounting plate comprises a plurality of sub-mounting plates and a fixed shaft, two ends of the sub-mounting plates are respectively connected with the inner side wall of the air inlet opening and the circumferential side wall of the fixed shaft along the radial direction of the air inlet opening, the plurality of sub-mounting plates are arranged at intervals along the circumferential direction of the air inlet opening, the ventilation opening is defined between two adjacent sub-mounting plates, and the fixed shaft is provided with the through hole; the indoor unit of the air conditioner further comprises: and the sealing piece is rotationally connected with the mounting plate so as to open or close the ventilation opening.

In some alternative embodiments, the air conditioning indoor unit further includes: and the limiting piece is connected with the inner side wall of the auxiliary air inlet and provided with a limiting hole, and the connecting shaft is rotationally connected with the limiting hole.

In some alternative embodiments, the air mixing fan includes: a fan blade; the axial side wall of the central shaft is connected with the fan blade, one end of the connecting shaft is connected with the driving end of the second motor, the other end of the connecting shaft penetrates through the limiting hole to be connected with the central shaft, or the other end of the connecting shaft penetrates through the central shaft to be located in the limiting hole.

In some alternative embodiments, the cross-flow fan includes: an impeller assembly; the two end covers are respectively arranged at two ends of the impeller assembly in the axial direction and comprise a first end cover, an auxiliary air inlet is formed in the first end cover, and the end part of the first end cover extends in the direction away from the impeller assembly along the axial direction of the cross-flow fan.

In some alternative embodiments, the air mixing fan comprises an axial flow fan or a centrifugal fan.

The indoor unit of the air conditioner provided by the embodiment of the disclosure can realize the following technical effects:

In this embodiment, the cross flow fan can drive the heat exchange air to flow, the axial side wall of the cross flow fan is provided with an auxiliary air inlet communicated with the interior of the cross flow fan, the air outlet of the air mixing fan is communicated with the auxiliary air inlet, and the air mixing fan can drive indoor air which does not exchange heat to flow into the cross flow fan. Indoor wind which is not subjected to heat exchange can enter the auxiliary air inlet to flow into the cross-flow fan under the drive of the air mixing fan, and is mixed with heat exchange wind in the cross-flow fan. Thus, the mixing of the heat exchange air and the indoor air is realized, and the temperature of the air blown out by the indoor unit of the air conditioner is adjusted. The air conditioner indoor unit comprises a cross flow fan and a mixing fan, so that the air output of the air conditioner indoor unit can be increased, and the cooling capacity or the heat of the heat exchange air can be transferred to more air. Thereby improving or reducing the temperature of the mixed air blown out by the air conditioner indoor unit, reducing the temperature difference between the air blown out by the air conditioner indoor unit and the indoor temperature, and improving the comfort of users. The auxiliary air inlet is arranged on the axial side wall of the cross-flow fan, and indoor air driven by the air mixing fan is blown into the cross-flow fan along the axial direction of the cross-flow fan through the auxiliary air inlet. The heat exchange air passes through the cross-flow fan along the radial direction of the cross-flow fan, and the flow directions of the heat exchange air and the indoor air are different, so that the mixing effect of the indoor air and the heat exchange air can be improved in the mixing process of the indoor air and the heat exchange air. Thereby improving the uniformity of the temperature of the mixed air blown out by the indoor unit of the air conditioner and improving the use experience of users.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which like reference numerals refer to similar elements, and in which:

Fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

Fig. 2 is a schematic partial structure of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

Fig. 3 is a schematic cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

Fig. 4 is a schematic view of a partial cross-sectional structure of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic partial structure of another indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 6 is an enlarged schematic view of the portion A of FIG. 5;

Fig. 7 is a schematic view of a partial cross-sectional structure of another indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 8 is an enlarged schematic view of the portion B in fig. 7.

Reference numerals:

100. A housing; 110. a receiving chamber; 130. a volute; 131. a first axial sidewall; 132. an air inlet opening; 133. an avoidance groove; 200. a cross-flow fan; 210. an auxiliary air inlet; 220. an impeller assembly; 230. an end cap; 231. a first end cap; 232. a second end cap; 300. a wind mixing fan; 310. a connecting shaft; 320. a fan blade; 330. a central shaft; 410. a first motor; 420. a second motor; 600. a mounting assembly; 610. a mounting plate; 611. a vent; 612. a sub-mounting plate; 613. a fixed shaft; 620. mounting the bulge; 630. a seal; 631. a rotating plate; 6311. an annular rack; 632. a sealing plate; 6321. an arc-shaped rack; 640. a first gear; 650. a second gear; 660. a second drive assembly; 700. a limiting piece; 710. and a limiting hole.

Detailed Description

So that the manner in which the features and techniques of the disclosed embodiments can be understood in more detail, a more particular description of the embodiments of the disclosure, briefly summarized below, may be had by reference to the appended drawings, which are not intended to be limiting of the embodiments of the disclosure. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be practiced without these details. In other instances, well-known structures and devices may be shown simplified in order to simplify the drawing.

The terms first, second and the like in the description and in the claims of the embodiments of the disclosure and in the above-described figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe embodiments of the present disclosure. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe embodiments of the present disclosure and embodiments thereof and are not intended to limit the indicated device, element, or component to a particular orientation or to be constructed and operated in a particular orientation. Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the embodiments of the present disclosure will be understood by those of ordinary skill in the art in view of the specific circumstances.

In addition, the terms "disposed," "connected," "secured" and "affixed" are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the above terms in the embodiments of the present disclosure may be understood by those of ordinary skill in the art according to specific circumstances.

The term "and/or" is an associative relationship that describes an object, meaning that there may be three relationships. For example, a and/or B, represent: a or B, or, A and B.

It should be noted that, without conflict, the embodiments of the present disclosure and features of the embodiments may be combined with each other.

The embodiment of the present disclosure provides an air conditioning indoor unit, as shown in fig. 1 to 8, including a cross flow fan 200, a first motor 410, a mixing fan 300, and a second motor 420. The cross flow fan 200 is used for driving the heat exchange air to flow, and an auxiliary air inlet 210 communicated with the interior of the cross flow fan 200 is arranged on the side wall of the cross flow fan 200 along the axial direction of the cross flow fan 200. The driving end of the first motor 410 is connected to the cross flow fan 200. The air mixing fan 300 is used for driving indoor air without heat exchange to flow, an air outlet of the air mixing fan 300 is communicated with the auxiliary air inlet 210, and a driving end of the second motor 420 is connected with a connecting shaft 310 of the air mixing fan 300.

With this alternative embodiment, the cross flow fan 200 can drive the heat exchange air to flow, the axial side wall of the cross flow fan 200 is provided with an auxiliary air inlet 210 communicated with the interior of the cross flow fan 200, the air outlet of the air mixing fan 300 is communicated with the auxiliary air inlet 210, and the air mixing fan 300 can drive the indoor air which is not subjected to heat exchange to flow into the cross flow fan 200. Indoor wind which is not subjected to heat exchange can enter the auxiliary air inlet 210 to flow into the cross-flow fan 200 under the driving of the air mixing fan 300, and is mixed with heat exchange wind in the cross-flow fan 200. Thus, the mixing of the heat exchange air and the indoor air is realized, and the temperature of the air blown out by the indoor unit of the air conditioner is adjusted. And the air conditioning indoor unit includes the cross flow fan 200 and the air mixing fan 300, so that the air outlet amount of the air conditioning indoor unit can be increased to transfer the cooling amount or heat of the heat exchanging air to more air. Thereby improving or reducing the temperature of the mixed air blown out by the air conditioner indoor unit, reducing the temperature difference between the air blown out by the air conditioner indoor unit and the indoor temperature, and improving the comfort of users.

The auxiliary air inlet 210 is disposed on an axial side wall of the cross-flow fan 200, and indoor air driven by the air mixing fan 300 is blown into the cross-flow fan 200 along an axial direction of the cross-flow fan 200 through the auxiliary air inlet 210. The heat exchanging wind passes through the cross flow fan 200 along the radial direction of the cross flow fan 200, and the flow direction of the heat exchanging wind is different from that of the indoor wind, so that the mixing effect of the indoor wind and the heat exchanging wind can be improved in the mixing process of the indoor wind and the heat exchanging wind. Thereby improving the uniformity of the temperature of the mixed air blown out by the indoor unit of the air conditioner and improving the use experience of users.

In this embodiment, the first motor 410 and the second motor 420 can rotate synchronously, so that the rotation speed of the cross-flow fan 200 is the same as that of the air mixing fan 300, and the first motor 410 and the second motor 420 can also rotate asynchronously, so that the rotation speed of the cross-flow fan 200 and the rotation speed of the air mixing fan 300 are different, and thus the ratio of indoor air to heat exchange air during mixing and the air outlet volume of the indoor unit of the air conditioner can be adjusted. Similarly, the first motor 410 may be rotated and the second motor 420 may not be rotated, so that indoor air not subjected to heat exchange may not flow into the cross flow fan 200, and air mixing may not be performed, so that the indoor unit of the air conditioner may normally discharge air. Like this, the indoor set of air conditioner can have multiple air-out mode to satisfy the multiple air-out demand of user, improve user's use experience.

Further, as shown in fig. 2 to 3, the air mixing fan 300 is disposed on one side of the cross-flow fan 200 where the auxiliary air inlet 210 is disposed, the air conditioning indoor unit further includes a volute 130, the cross-flow fan 200 is disposed in the volute 130, a first axial side wall 131 of the volute 130 is disposed opposite to the auxiliary air inlet 210, the first axial side wall 131 is provided with a mounting assembly 600, and the second motor 420 is connected to the mounting assembly 600.

With this alternative embodiment, the cross flow fan 200 is disposed in the scroll case 130 such that the cross flow fan 200 can form a vortex inside the cross flow fan 200 when rotating, thereby driving the heat exchanging air to flow. The air mixing fan 300 is disposed on a side of the cross-flow fan 200 where the auxiliary air inlet 210 is disposed, and the first axial sidewall 131 of the volute 130 is disposed opposite to the auxiliary air inlet 210, that is, the first axial sidewall 131 and the air mixing fan 300 are disposed on the same side of the cross-flow fan 200. The first axial sidewall 131 is provided with a mounting assembly 600, and the second motor 420 is connected with the mounting assembly 600 to locate the second motor 420 on the first axial sidewall 131, thereby fixing the air mixing fan 300.

Optionally, as shown in fig. 3, the indoor air of the air conditioner further includes a housing 100, the housing 100 is configured with an air inlet duct, an air outlet duct, and an auxiliary air inlet duct, the volute 130 is configured with a receiving cavity 110, and the cross-flow fan 200 is located in the receiving cavity 110. The air inlet duct and the air outlet duct are respectively communicated with two ends of the accommodating cavity 110, and the auxiliary air inlet duct is communicated with the auxiliary air inlet 210. A heat exchanger is arranged in the air inlet duct. The heat exchanger and the cross flow fan 200 are sequentially disposed in the flow direction of the heat exchange wind. Indoor air enters an air inlet duct under the drive of the cross-flow fan 200, and exchanges heat with the heat exchanger in the air inlet duct to form heat exchange air. The heat exchanging air flows along the air inlet duct and then flows into the accommodating chamber 110 to enter the cross flow fan 200. The other indoor air flows into the auxiliary air inlet duct under the driving of the air mixing fan 300, flows into the cross-flow fan 200 through the auxiliary air inlet duct and the auxiliary air inlet 210, and is mixed with the heat exchange air in the cross-flow fan 200 to form mixed air. The mixed air flows out of the cross flow fan 200, flows into the air outlet duct, and flows out of the casing 100, so as to realize mixed air outlet of the indoor unit of the air conditioner.

In some alternative embodiments, as shown in fig. 4 to 7, the first axial sidewall 131 is provided with an air inlet opening 132, and the air mixing fan 300 drives indoor air into the auxiliary air inlet 210 through the air inlet opening 132, and the mounting assembly 600 includes a mounting plate 610 and a mounting protrusion 620. The mounting plate 610 is connected to the inner side wall of the air inlet opening 132, the mounting plate 610 is provided with a vent 611, and the vent 611 communicates with the air inlet opening 132. The mounting boss 620 is coupled to the mounting plate 610, and the second motor 420 is coupled to the mounting boss 620.

With this alternative embodiment, indoor air enters the auxiliary air intake 210 through the air intake opening 132, so that indoor air can flow into the inside of the cross-flow fan 200 in the axial direction of the cross-flow fan 200 through the scroll case 130. The mounting plate 610 is connected to the inner side wall of the air inlet 132, and the inner side wall of the air inlet 132 can fix the mounting plate 610. The mounting boss 620 is connected to the mounting plate 610, and the second motor 420 is provided to the mounting boss 620 to fix the second motor 420.

The mounting plate 610 is disposed in the air inlet opening 132, the mounting plate 610 is provided with a ventilation opening 611, and the ventilation opening 611 is communicated with the air inlet opening 132, so that indoor air flowing into the air inlet opening 132 can flow to the auxiliary air inlet 210 through the ventilation opening 611, and the air inlet opening 132 can fix the mounting plate 610 and also can ventilate.

The air inlet opening 132 may be coaxially disposed with the auxiliary air inlet 210, and the mounting plate 610 and the mounting protrusion 620 may be disposed in the air inlet opening 132, such that the driving end of the second motor 420 may be coaxially disposed with the cross-flow fan 200, thereby coaxially disposing the air mixing fan 300 with the cross-flow fan 200.

Further, the air inlet opening 132 communicates between the auxiliary air inlet duct and the auxiliary air inlet 210.

Further, the second motor 420 is disposed on one side of the mounting plate 610, the air mixing fan 300 is disposed on the other side of the mounting plate 610, the mounting plate 610 is provided with a through hole, and the driving end of the second motor 420 is connected with the connecting shaft 310 through the through hole, or the connecting shaft 310 is connected with the second motor 420 through the through hole.

With this alternative embodiment, the second motor 420 and the air mixing fan 300 are respectively disposed on two sides of the mounting plate 610, and when the driving end of the second motor 420 passes through the through hole of the mounting plate 610 and is connected with the connecting shaft 310, the driving end of the second motor 420 is rotationally connected with the through hole, the through hole can radially limit the driving end of the second motor 420, so that radial shake of the driving end of the second motor 420 and the air mixing fan 300 in the rotation process is reduced, and the working stability and reliability of the indoor unit of the air conditioner are improved.

Under the condition that the connecting shaft 310 passes through the through hole and is connected with the second motor 420, the connecting shaft 310 is rotationally connected with the through hole, and the through hole can radially limit the connecting shaft 310, so that radial shaking of the air mixing fan 300 in the rotating process is reduced, and the working stability and reliability of the air conditioning indoor unit are improved.

Optionally, a mounting boss 620 is connected to a side wall of the mounting plate 610 facing away from the auxiliary intake vent 210.

In this embodiment, the mounting protrusion 620 is connected to a side wall of the mounting plate 610 facing away from the auxiliary air inlet 210, the second motor 420 is connected to the mounting protrusion 620, and the second motor 420 and the air mixing fan 300 are respectively disposed on two opposite sides of the mounting plate 610. That is, the air mixing fan 300 is disposed at a side of the mounting plate 610 facing the auxiliary air inlet 210.

Indoor air can firstly enter the air inlet opening 132 through the second motor 420 under the driving of the air mixing fan 300, then flow through the air mixing fan 300 after passing through the air inlet opening 132 and the ventilation opening 611, and flow into the cross-flow fan 200 through the auxiliary air inlet 210 under the driving of the air mixing fan 300 so as to be mixed with heat exchange air in the cross-flow fan 200 and then flow out of the cross-flow fan 200 and the indoor unit of the air conditioner together.

As shown in fig. 7 and 8, the mounting plate 610 includes a plurality of sub-mounting plates 612 and a fixed shaft 613, two ends of the sub-mounting plates 612 are respectively connected with an inner sidewall of the air inlet 132 and a circumferential sidewall of the fixed shaft 613 along a radial direction of the air inlet 132, the plurality of sub-mounting plates 612 are disposed at intervals along a circumferential direction of the air inlet 132, a ventilation opening 611 is defined between two adjacent sub-mounting plates 612, and the fixed shaft 613 is provided with a through hole. The indoor unit further includes a sealing member 630, and the sealing member 630 is rotatably connected to the mounting plate 610 to open or close the ventilation opening 611.

With this alternative embodiment, sub-mounting plate 612 is coupled to the inner side wall of air inlet opening 132 and seal 630 is coupled to mounting plate 610 such that seal 630 is disposed within air inlet opening 132. The seal 630 is movable relative to the vent 611 to open or seal the vent 611. In this way, when the seal 630 opens the ventilation opening 611, the indoor air that has not exchanged heat can flow through the ventilation opening 611 into the air intake opening 132, and thus the indoor air can enter the cross flow fan 200 to mix the air. With the seal 630 sealing the vent 611, the seal 630 blocks the flow of indoor wind, i.e., indoor wind cannot flow through the air inlet opening 132 to enter the interior of the cross-flow fan 200 for mixing.

In this embodiment, the mounting plate 610 is capable of mounting not only the second motor 420, but the mounting plate 610 may also be used in conjunction with the seal 630 to seal or unseal the air inlet opening 132. This reduces the number of parts used to seal the air inlet opening 132 or install the second motor 420, improves the utilization of the parts, and reduces the production cost of the indoor unit of the air conditioner.

Optionally, a fixed shaft 613 is disposed in the middle of the mounting plate 610, the sealing member 630 includes a rotating plate 631 and a sealing plate 632, the rotating plate 631 is disposed in a ring shape, the rotating plate 631 is sleeved on the outer side of the fixed shaft 613, and the rotating plate 631 is rotationally connected with the fixed shaft 613. One end of the sealing plate 632 is connected to the rotation plate 631, and the number of the sealing plates 632 is the same as and one-to-one corresponding to the number of the ventilation openings 611, and the sealing plate 632 can rotate relative to the ventilation openings 611 to open or seal the ventilation openings 611.

In this embodiment, the rotating plate 631 is rotatably connected to the fixed shaft 613, one end of the sealing plate 632 is connected to the rotating plate 631, and the sealing plate 632 can be rotated relative to the ventilation opening 611 in synchronization with the rotating plate 631 to open or seal the ventilation opening 611.

Alternatively, as shown in fig. 7 and 8, the end of the rotating plate 631 is provided with an annular rack 6311, and the air conditioning indoor unit further includes a first driving assembly and a first gear 640, the first driving assembly is connected with the fixed shaft 613, the first gear 640 is connected with the driving end of the first driving assembly, and the first gear 640 is engaged with the annular rack 6311.

In this embodiment, the first driving assembly is connected to the fixing shaft 613 to fix the first driving assembly. The driving end of the first driving assembly is connected with the first gear 640, and the first driving assembly drives the first gear 640 to rotate. The first gear 640 is engaged with the annular rack 6311 of the rotation plate 631, and rotation of the first gear 640 drives rotation of the annular rack 6311 to thereby drive rotation of the rotation plate 631 relative to the fixed shaft 613. The sealing plate 632 is connected to the rotating plate 631, and the rotating plate 631 rotates to drive the sealing plate 632 to rotate relative to the ventilation opening 611, thereby opening or closing the ventilation opening 611.

Alternatively, as shown in fig. 5 and 6, the sidewall of the air inlet 132 is provided with an avoidance groove 133, the other end of a sealing plate 632 extends into the avoidance groove 133, and the other end of the sealing plate 632 is provided with an arc-shaped rack 6321. The sealing device further includes a second driving assembly 660 and a second gear 650, the second driving assembly 660 being connected with the housing 100. The second gear 650 is coupled to the driving end of the second driving assembly 660, and the second gear 650 is engaged with the arc-shaped rack 6321.

With this alternative embodiment, the sidewall of the air inlet 132 is provided with the avoidance groove 133, one end of a sealing plate 632 is connected with the rotation plate 631, the other end of the sealing plate 632 extends into the avoidance groove 133, and the other end of the sealing plate 632 is provided with the arc-shaped rack 6321. The driving end of the second driving component 660 is connected with the second gear 650, and the second driving component 660 drives the second gear 650 to rotate. The second gear 650 is engaged with the arc-shaped rack 6321, and the second gear 650 rotates to drive the arc-shaped rack 6321 to rotate, that is, the sealing plate 632 provided with the arc-shaped rack 6321 rotates. The plurality of sealing plates 632 are connected with the rotating plate 631, and the sealing plates 632 provided with the arc racks 6321 rotate to drive the rotating plate 631 to rotate, so that the rotating plate 631 rotates to drive the plurality of sealing plates 632 to synchronously rotate, so as to realize the opening or sealing of the ventilation opening 611.

In a case where the sealing plate 632 opens the ventilation opening 611, the sealing plate 632 is overlapped with the fixing plate to expose the ventilation opening 611, so that the ventilation opening 611 can be ventilated with air. In the case where the sealing plate 632 seals the vent 611, the sealing plate 632 covers over the vent 611 to shield the vent 611 and seal the vent 611.

Optionally, the width of the sealing plate 632 is greater than or equal to the width of the vent 611 at the corresponding location. This allows the vent 611 to be sealed when the seal plate 632 moves to the position of the vent 611, thereby improving the sealing effect of the seal 630 on the vent 611.

In some alternative embodiments, as shown in fig. 2 to 4, the indoor unit of the air conditioner further includes a limiting member 700, the limiting member 700 is connected to the inner sidewall of the auxiliary air inlet 210, the limiting member 700 is provided with a limiting hole, and the connecting shaft 310 is rotatably connected to the limiting hole.

In this embodiment, the limiting member 700 is connected to the inner sidewall of the air inlet 132, and the connecting shaft 310 is rotatably connected to the limiting hole of the limiting member 700. The limiting holes can also radially limit the connecting shaft 310, so that radial shaking of the air mixing fan 300 in the rotating process is reduced, and the working stability and reliability of the indoor unit of the air conditioner are improved.

Optionally, a bearing is disposed in the limiting hole, the limiting hole is connected with an outer ring of the bearing, the connecting shaft 310 is connected with an inner ring of the bearing, and the outer ring and the inner ring can rotate relative to each other, so that the connecting shaft 310 can rotate relative to the limiting hole, and the rotating friction force of the limiting hole received by the connecting shaft 310 is reduced.

In some alternative embodiments, as shown in fig. 2 to 4, the air mixing fan 300 includes a fan blade 320 and a central shaft 330, an axial sidewall of the central shaft 330 is connected to the fan blade 320, one end of the connecting shaft 310 is connected to the driving end of the second motor 420, the other end of the connecting shaft 310 is connected to the central shaft 330 through a limiting hole, or the other end of the connecting shaft 310 is located in the limiting hole through the central shaft 330.

In this embodiment, the limiting member 700 is disposed in the auxiliary air inlet 210, and the air mixing fan 300 is disposed between the second air duct and the auxiliary air inlet 210 when the other end of the connecting shaft 310 passes through the central shaft 330 and is disposed in the limiting hole, i.e. the connecting shaft 310 is disposed at two sides of the central shaft 330.

In the case that the other end of the connecting shaft 310 passes through the limiting hole and is connected with the central shaft 330, that is, the central shaft 330 is located in the auxiliary air inlet 210, the air mixing fan 300 is located in the auxiliary air inlet 210.

In some alternative embodiments, cross-flow fan 200 further includes an impeller assembly 220 and two end caps 230, wherein two end caps 230 are disposed at each axial end of impeller assembly 220. The two end caps 230 include a first end cap 231, the first end cap 231 is provided with an auxiliary air inlet 210, and the end of the first end cap 231 extends along the axial direction of the cross-flow fan in a direction away from the impeller assembly 220.

In this embodiment, the end of the first end cap 231 extends along the direction away from the impeller assembly 220, that is, the end cap 230 provided with the auxiliary air inlet 210 extends along the direction away from the impeller assembly 220, so as to increase the extension length of the auxiliary air inlet 210, so that the air mixing fan 300 can be disposed in the auxiliary air inlet 210.

Optionally, the end of the auxiliary air intake 210 is flush with the end of the air intake opening 132 toward the cross-flow fan 200 or the end of the auxiliary air intake 210 extends into the air intake opening 132.

Optionally, the two end caps 230 are provided with auxiliary air inlets 210, the number of the air mixing fans 300 is the same as and corresponds to the number of the auxiliary air inlets 210, and the number of the second motors 420 is the same as and corresponds to the number of the air mixing fans 300.

Optionally, as shown in fig. 4, the two end caps 230 further include a second end cap 232, the second end cap 232 is provided with a motor connection location, and the driving end of the first motor 410 is connected with the motor connection location.

Alternatively, the wind mixing fan 300 includes an axial flow fan or a centrifugal fan.

In this embodiment, in the case where the air mixing fan 300 is an axial flow fan, the air outlet of the axial flow fan is opposite to the auxiliary air inlet 210, and the indoor air flowing out of the axial flow fan can directly enter the auxiliary air inlet 210. In the case where the air mixing fan 300 is a centrifugal fan, the centrifugal fan is disposed coaxially with the cross flow fan 200, and the air outlet of the centrifugal fan is not disposed toward the auxiliary air inlet 210. The casing 100 is further constructed with a communication duct, both ends of which are respectively communicated with the air outlet of the centrifugal fan and the auxiliary air inlet 210 to guide indoor air flowing out of the centrifugal fan to the auxiliary air inlet 210.

The above description and the drawings illustrate embodiments of the disclosure sufficiently to enable those skilled in the art to practice them. Other embodiments may include structural and other modifications. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in, or substituted for, those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. An air conditioning indoor unit, comprising:

The cross flow fan is used for driving the heat exchange air to flow, and an auxiliary air inlet communicated with the interior of the cross flow fan is arranged on the side wall of the cross flow fan along the axial direction of the cross flow fan;

The driving end of the first motor is connected with the cross-flow fan;

the air mixing fan is used for driving indoor air which does not undergo heat exchange to flow, and an air outlet of the air mixing fan is communicated with the auxiliary air inlet;

The driving end of the second motor is connected with the connecting shaft of the air mixing fan.

2. The indoor unit of claim 1, wherein the air mixing fan is disposed on a side of the cross flow fan where the auxiliary air inlet is disposed, and the indoor unit further comprises:

The spiral case is located to the through-flow fan in the spiral case, and the first axial lateral wall and the supplementary air intake of spiral case set up relatively, and first axial lateral wall is equipped with the installation component, and the second motor is connected with the installation component.

3. The indoor unit of claim 2, wherein the first axial sidewall is provided with an air inlet opening, the air mixing fan drives indoor air into the auxiliary air inlet through the air inlet opening, and the mounting assembly comprises:

The mounting plate is connected with the inner side wall of the air inlet opening and is provided with a vent which is communicated with the air inlet opening;

the installation is protruding, is connected with the mounting panel, and the second motor is protruding with the installation to be connected.

4. An indoor unit for an air conditioner according to claim 3, wherein,

The second motor is arranged on one side of the mounting plate, the air mixing fan is arranged on the other side of the mounting plate, the mounting plate is provided with a through hole, and the driving end of the second motor penetrates through the through hole to be connected with the connecting shaft, or the connecting shaft penetrates through the through hole to be connected with the second motor.

5. The indoor unit of claim 4, wherein the indoor unit of the air conditioner,

The installation bulge is connected with the side wall of the installation plate deviating from the auxiliary air inlet.

6. The indoor unit of claim 4, wherein the indoor unit of the air conditioner,

The mounting plates comprise a plurality of sub-mounting plates and a fixed shaft, two ends of each sub-mounting plate are respectively connected with the inner side wall of the air inlet opening and the circumferential side wall of the fixed shaft along the radial direction of the air inlet opening, the plurality of sub-mounting plates are arranged at intervals along the circumferential direction of the air inlet opening, the ventilation opening is defined between every two adjacent sub-mounting plates, and the fixed shaft is provided with the through hole; the indoor unit of the air conditioner further comprises:

and the sealing piece is rotationally connected with the mounting plate so as to open or close the ventilation opening.

7. An air conditioning indoor unit according to any of claims 1 to 6, further comprising:

And the limiting piece is connected with the inner side wall of the auxiliary air inlet and provided with a limiting hole, and the connecting shaft is rotationally connected with the limiting hole.

8. The indoor unit of claim 7, wherein the air mixing fan comprises:

A fan blade;

the axial side wall of the central shaft is connected with the fan blade, one end of the connecting shaft is connected with the driving end of the second motor, the other end of the connecting shaft penetrates through the limiting hole to be connected with the central shaft, or the other end of the connecting shaft penetrates through the central shaft to be located in the limiting hole.

9. The indoor unit of claim 8, wherein the cross-flow fan comprises:

an impeller assembly;

The two end covers are respectively arranged at two ends of the impeller assembly in the axial direction and comprise a first end cover, an auxiliary air inlet is formed in the first end cover, and the end part of the first end cover extends in the direction away from the impeller assembly along the axial direction of the cross-flow fan.

10. An indoor unit for air conditioning according to any of claims 1 to 6, wherein,

The air mixing fan includes an axial flow fan or a centrifugal fan.