CN217685398U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning, discloses a machine and air conditioner in air conditioning, and the machine includes in the air conditioning: a housing configured with an air inlet, a fresh air inlet, an air outlet and a flow space; the cross-flow fan is arranged in the circulation space and divides the circulation space into an air inlet area and an air outlet area which are communicated, the air inlet and the fresh air inlet are communicated with the air inlet area, outdoor air can enter the air inlet area through the fresh air inlet, the air outlet is communicated with the air outlet area, the cross-flow fan comprises a straight tooth part and an oblique tooth part, a first blade of the straight tooth part extends along the axial direction of the cross-flow fan, a break angle is formed between a second blade of the oblique tooth part and the axis of the cross-flow fan, and the orthographic projection of the fresh air inlet on the cross-flow fan is completely positioned in the straight tooth part. In this embodiment, the fresh air inlet corresponds the setting with straight tooth portion, and straight tooth portion can drive more outdoor air and get into the air inlet district from the fresh air inlet, increases the intake to the new trend to improve the ability of the machine of air conditioning indoor machine's fresh air that advances, improvement indoor air quality.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The application relates to the technical field of air conditioning, for example to an air conditioner indoor unit and an air conditioner.

Background

Along with the improvement of the life quality of people, the requirements of people on the air quality are higher and higher. Since people live indoors for a considerable part of their time, the effects of indoor air quality on human health are particularly important. When a user stays in a room with an opened air conditioner for a long time, people generally tightly close doors and windows to achieve a good air conditioning effect, and after a period of time, due to the fact that air is not circulated, the quality of indoor air is poor, if people stay in the environment for a long time, harm can be caused to human health, for example, symptoms such as lassitude and fatigue caused by oxygen deficiency can be easily caused. With the emphasis on indoor air quality, the conventional air conditioner can only adjust the temperature and cannot meet the demand of consumers on improvement of indoor comfortable environment.

The indoor air conditioner comprises a shell, a control unit, an evaporator arranged in the shell, a cross-flow fan and a flow-dispersing pipe, wherein the evaporator is connected with the outdoor air conditioner through a refrigerant pipe, a fresh air port, a return air port and an air outlet are formed in the shell, indoor air is sucked into the shell from the return air port when the cross-flow fan works, the sucked air in the shell is discharged from the air outlet after passing through an area where the evaporator is located, the fresh air port is connected with a fresh air system capable of sucking outdoor air, and one end of the flow-dispersing pipe is connected with the fresh air port so that the sucked outdoor air can be conveyed to a space between the return air port and the evaporator through the flow-dispersing pipe.

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 cross-flow fan simultaneously sucks indoor return air and outdoor fresh air, the fresh air needs to enter a space between a return air inlet and an evaporator through the diffusing pipe, and the suction amount of the cross-flow fan to the fresh air is small.

SUMMERY OF THE 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 to be a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides an air conditioner indoor unit and an air conditioner, and aims to solve the problem of how to increase the suction volume of fresh air.

According to an embodiment of a first aspect of the present application, there is provided an air conditioning indoor unit, including: a housing configured with an air inlet, a fresh air inlet, an air outlet and a flow space; the cross-flow fan is arranged in the circulation space and divides the circulation space into an air inlet area and an air outlet area which are communicated, the air inlet and the fresh air inlet are communicated with the air inlet area, outdoor air can enter the air inlet area through the fresh air inlet, the air outlet is communicated with the air outlet area, the cross-flow fan comprises a straight tooth part and an oblique tooth part, a first blade of the straight tooth part extends along the axial direction of the cross-flow fan, a break angle is formed between a second blade of the oblique tooth part and the axis of the cross-flow fan, and the orthographic projection of the fresh air inlet on the cross-flow fan is completely positioned in the straight tooth part.

Optionally, the helical tooth portion is located on one side of the straight tooth portion, a projection of the helical tooth portion in a reference plane is an orthographic projection, and in a top-to-bottom direction, the second blade of the orthographic projection extends obliquely in a direction away from the straight tooth portion, so that the helical tooth portion drives air to be blown out towards one side away from the fresh air outlet, and the reference plane is a plane perpendicular to the front view direction.

Optionally, the straight teeth have an extension less than or equal to the extension of the helical teeth.

Optionally, the indoor unit of an air conditioner further includes: and the fresh air valve is arranged at the fresh air port to adjust the opening and closing of the fresh air port.

Optionally, the indoor unit of an air conditioner further includes: the air quality sensor is arranged at the air inlet and used for detecting the air quality of indoor air; and the controller is used for controlling the work of the fresh air valve according to the air quality.

Optionally, the indoor unit of an air conditioner further includes: and one end of the fresh air pipe is communicated with the fresh air port, the other end of the fresh air pipe is suitable for penetrating through a wall body to be communicated with the outside, and the cross-flow fan drives outdoor air to flow into the circulation space through the fresh air pipe and the fresh air port and then flow out of the air outlet.

Optionally, the indoor unit of an air conditioner further includes: the air purification module is arranged in the fresh air inlet and/or the fresh air pipe and used for purifying outdoor air flowing into the air inlet area, and the air purification module comprises a filter and/or an ultraviolet lamp.

Optionally, the housing comprises: the upper shell is provided with the air inlet; and the rear shell is connected with the rear end of the upper shell, and the rear shell is provided with the fresh air opening.

Optionally, the indoor unit of an air conditioner further includes: the heat exchanger is arranged in the air outlet area, and the cross flow fan drives air to flow through the heat exchanger and then flow to the air outlet.

According to an embodiment of a second aspect of the present application, there is provided an air conditioner including: an air conditioning indoor unit according to any one of the above claims.

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

the cross-flow fan is arranged in the circulation space and divides the circulation space into an air inlet area and an air outlet area which are communicated, and the cross-flow fan drives airflow to flow into the air outlet area from the air inlet area after entering the cross-flow fan. The air inlet and the fresh air inlet are communicated with the air inlet area, air enters the air inlet area through the air inlet and the fresh air inlet, indoor air enters the air inlet area through the air inlet, and outdoor air (namely fresh air) enters the air inlet area through the fresh air inlet, so that the indoor unit of the air conditioner has the function of introducing outdoor fresh air. The cross-flow fan comprises a straight tooth part and a helical tooth part, the first blade can enable airflow to flow out in the direction vertical to the axial direction of the cross-flow fan, and the second blade enables the blowing-out direction of the airflow to be crossed with the axial direction of the cross-flow fan and not vertical to the axial direction of the cross-flow fan, so that the air supply angle of the indoor unit of the air conditioner can be increased, and the air supply range of the indoor unit of the air conditioner is enlarged. The orthographic projection of the fresh air inlet on the cross-flow fan is completely positioned in the straight tooth part, namely the position of the fresh air inlet corresponds to the position of the straight tooth part, and the first blade of the straight tooth part drives outdoor air to enter the air inlet area from the fresh air inlet. The air volume of the blades is large in a straight tooth state, the air volume of the blades is small in a helical tooth state, the air suction volume of the straight tooth portion is large when the helical tooth portion and the straight tooth portion drive air to enter the air inlet area, the straight tooth portion can drive more outdoor air to enter the air inlet area from the fresh air inlet, the suction volume of the fresh air can be increased, and therefore the fresh air inlet capacity and the indoor air quality capacity of an indoor unit of an air conditioner are improved.

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 in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic view of a view angle of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 2 is a schematic cross-sectional structure view of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a crossflow blower according to an embodiment of the present disclosure;

fig. 4 is a schematic structural diagram of another view angle of an air conditioning indoor unit according to an embodiment of the present disclosure.

Reference numerals:

100. a housing; 110. an upper housing; 120. a rear housing; 130. a fresh air port; 140. a flow-through space; 200. a cross-flow fan; 210. a straight tooth portion; 211. a first blade; 220. a helical tooth portion; 221. a second blade; 300. and (4) a fresh air pipe.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. 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 be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and claims of the embodiments of the disclosure and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged as appropriate for the embodiments of the disclosure described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can 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. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

As shown in fig. 1 to 4, an air conditioning indoor unit according to an embodiment of the present disclosure includes a casing 100 and a cross-flow fan 200, the casing 100 being configured with an inlet, a fresh air inlet 130, an outlet, and a circulation space 140. The cross flow fan 200 is disposed in the circulation space 140 to divide the circulation space 140 into an air inlet region and an air outlet region which are communicated with each other. The air inlet and fresh air inlet 130 is communicated with the air inlet area, outdoor air can enter the air inlet area through the fresh air inlet 130, and the air outlet is communicated with the air outlet area. The cross-flow fan 200 includes straight teeth portions 210 and helical teeth portions 220, a first blade 211 of the straight teeth portion 210 extends in an axial direction of the cross-flow fan 200, a second blade 221 of the helical teeth portion 220 has a dog-ear angle with an axis of the cross-flow fan 200, and an orthographic projection of the fresh air opening 130 on the cross-flow fan 200 is entirely located in the straight teeth portions 210.

With this alternative embodiment, crossflow blower 200 is disposed within circulation space 140 to divide circulation space 140 into an intake area and an exhaust area that are in communication, with crossflow blower 200 driving airflow from the intake area to the exhaust area after entering crossflow blower 200. The inlet and fresh air inlet 130 is communicated with the inlet area, air enters the inlet area through the inlet and fresh air inlet 130, indoor air enters the inlet area through the inlet, and outdoor air (i.e., fresh air) enters the inlet area through the fresh air inlet 130, so that the indoor unit of the air conditioner has a function of introducing outdoor fresh air. The outdoor air and the indoor air flow to the air outlet area after being mixed in the air inlet area. The air outlet is communicated with the air outlet area, and air flows out of the indoor unit of the air conditioner through the air outlet and flows indoors. The cross flow fan 200 includes straight teeth portions 210 and helical teeth portions 220, a first blade 211 of the straight teeth portion 210 extends in an axial direction of the cross flow fan 200, and the first blade 211 enables an airflow to flow out in a direction perpendicular to the axial direction of the cross flow fan 200. The second blade 221 of the helical tooth part 220 has a bevel angle with the axis of the cross flow fan 200, that is, the extending direction of the second blade 221 intersects with the axial direction of the cross flow fan 200, and the second blade 221 makes the blowing direction of the airflow intersect with and not perpendicular to the axial direction of the cross flow fan 200, so that the air supply angle of the indoor unit of the air conditioner can be increased, and the air supply range of the indoor unit of the air conditioner can be increased. The orthographic projection of the fresh air opening 130 on the cross flow fan 200 is totally positioned in the straight tooth part 210, that is, the position of the fresh air opening 130 corresponds to the position of the straight tooth part 210, and the first blade 211 of the straight tooth part 210 drives the outdoor air to enter the air inlet area from the fresh air opening 130. The air volume of the blades is large in the state of straight teeth, the air volume is small in the state of oblique teeth, the air volume sucked by the straight tooth parts 210 is large when the straight tooth parts 220 and the straight tooth parts 210 drive air to enter the air inlet area, more outdoor air can be driven by the straight tooth parts 210 to enter the air inlet area from the fresh air inlet 130, the suction volume of the fresh air can be increased, and therefore the fresh air inlet capacity and the indoor air quality capacity of the indoor unit of the air conditioner are improved.

As shown in fig. 3, in some alternative embodiments, the helical tooth portion 220 is located on one side of the straight tooth portion 210, a projection of the helical tooth portion 220 in a reference plane is an orthographic projection, and in a top-to-bottom direction, the orthographic second blade 221 extends obliquely in a direction away from the straight tooth portion 210, so that the helical tooth portion 220 blows air out towards the side away from the fresh air opening 130, and the reference plane is a plane perpendicular to the front view direction.

With this alternative embodiment, the helical tooth portion 220 is located at one side of the straight tooth portion 210, the position of the straight tooth portion 210 corresponds to the position of the fresh air opening 130, and the helical tooth portion 220 is also located at one side of the fresh air opening 130. The second blade 221, which is orthographically projected, extends obliquely in a direction away from the straight tooth portion 210 in the top-down direction, and the reference plane is a plane perpendicular to the front view direction. That is, the second vane 221 of the helical tooth portion 220 is inclined in a direction away from the fresh air opening 130. Therefore, the helical tooth portion 220 drives the air to blow out towards the side far away from the fresh air inlet 130, and the helical tooth portion 220 sucks the fresh air entering from the fresh air inlet 130 from the side of the fresh air inlet 130 to drive the fresh air to flow towards the helical tooth portion 220, which is beneficial to increasing the air intake of the fresh air. Oblique tooth portion 220 slope air supply, the air-out scope of multiplicable new trend makes the new trend can be faster reachs indoor each place to the indoor air quality of very fast improvement.

When fresh air is sucked in by the helical tooth part 220, the fresh air is driven to flow to one side, so that the outdoor fresh air is distributed in the air inlet area, and the fresh air can be quickly mixed with the indoor air in the air inlet area. The temperature difference between the outdoor fresh air and the indoor air is large, the indoor air and the outdoor fresh air are mixed in the air inlet area, and the indoor air and the outdoor fresh air exchange heat, so that the temperature difference between the outdoor fresh air and the indoor air is reduced, and the subsequent heat exchange of the outdoor fresh air is facilitated.

Alternatively, the break angle between the second blades 221 and the axis of the crossflow blower 200 ranges from 0 ° to 3 °. Therefore, the stable operation of the helical tooth parts 220, the uniformity of air blowing and the air volume can be ensured, and the problems of jumping, uneven air blowing and small air volume of the cross flow fan 200 caused by overlarge folding angle value between the second blades 221 of the helical tooth parts 220 and the axial line of the cross flow fan 200 are avoided.

As shown in fig. 2 and 3, in some alternative embodiments, the straight teeth portion 210 has an extension that is less than or equal to the extension of the helical teeth portion 220.

By adopting the optional embodiment, the extension length of the helical tooth part 220 is longer, so that the air outlet range of the indoor unit of the air conditioner can be improved, the air outlet of the indoor unit can be rapidly distributed indoors, and the heat exchange effect of the indoor unit of the air conditioner is improved. The straight tooth portion 210 and the fresh air opening 130 are correspondingly arranged, after the fresh air is sucked from the fresh air opening 130 through the straight tooth portion 210, part of the fresh air is taken away from one side through the inclined tooth portion 220, at the moment, negative pressure is formed at the position of the fresh air opening 130, the outdoor fresh air is sucked, and therefore the air inlet amount of the fresh air is increased.

Optionally, the indoor air conditioner unit includes a wall air conditioner and/or a cabinet air conditioner.

Alternatively, the axis of crossflow blower 200 is disposed in a horizontal direction.

Optionally, the straight tooth portion 210 includes a plurality of first blade groups and a plurality of connecting members, the first blade group includes a plurality of first blades 211, the plurality of first blades 211 are provided at intervals in a circumferential direction of the connecting members, both ends of each first blade group are provided with the connecting members, and the plurality of first blade groups and the plurality of connecting members are provided at intervals in an axial direction of the crossflow blower 200.

With this alternative embodiment, the plurality of first blades 211 are provided at the connecting member at intervals along the circumferential direction of the connecting member, and both ends of each first blade group are provided with the connecting member, which can increase the connection stability between the plurality of first blade groups. Meanwhile, under the condition that the length of the straight tooth part 210 is fixed, the first blade group and the connecting pieces are arranged, so that the length of the first blade 211 is short, the strength of the first blade 211 is increased, and the service life of the cross flow fan 200 is prolonged.

Optionally, the helical tooth portion 220 includes a plurality of second blade groups and a plurality of connecting members, each second blade group includes a plurality of second blades 221, the connecting members are disposed at intervals along a circumferential direction of the connecting member in the plurality of second blades 221, each connecting member is disposed at each of two ends of each second blade group, and the plurality of second blade groups and the plurality of connecting members are disposed at intervals along an axial direction of the cross flow fan 200.

With this alternative embodiment, the plurality of second blades 221 are disposed at the connecting member at intervals along the circumferential direction of the connecting member, and the connecting member is disposed at both ends of each second blade group, so that the connecting stability between the plurality of second blade groups can be increased by the connecting member. Meanwhile, under the condition that the length of the helical tooth part 220 is fixed, a plurality of second blade groups and connecting pieces are arranged, so that the length of the second blades 221 is shorter, the rigidity of the second blades 221 is increased, and the service life of the cross-flow fan 200 is prolonged.

In some optional embodiments, the air conditioning indoor unit further comprises a fresh air valve. The fresh air valve is disposed at the fresh air inlet 130 to adjust the opening and closing of the fresh air inlet 130.

Adopt this optional embodiment, fresh air valve locates fresh air inlet 130, and fresh air valve can adjust fresh air inlet 130's switching, makes the machine in the air conditioning advance new trend according to user's demand. For example, when the air conditioner is started and the indoor air enters the sealed environment, the quality of the indoor air and the quality of the outdoor air are not greatly different. At this moment, fresh air does not need to enter the room, and the fresh air valve can close the fresh air inlet 130, so that the indoor unit of the air conditioner can quickly adjust the temperature of the indoor air, and the requirements of users are met. After the indoor unit of the air conditioner is turned on for a preset time or when the indoor air quality is poor, the fresh air valve opens the fresh air inlet 130. Outdoor fresh air enters the circulation space 140 through the fresh air inlet 130 to flow into the room, so that the indoor air quality is improved.

Optionally, the fresh air valve comprises a baffle and a drive. The baffle is arranged at the fresh air inlet 130 and is matched with the fresh air inlet 130 so as to completely shield or open the fresh air inlet 130. The baffle is in driving connection with the driving device, and the driving device drives the baffle to rotate or slide so as to shield or open the fresh air opening 130.

In some optional embodiments, the air conditioning indoor unit further comprises an air quality sensor and a controller. The air quality sensor is arranged at the air inlet and used for detecting the air quality of indoor air.

The fresh air valve and the air quality sensor are both connected with the controller, and the controller controls the fresh air valve to work according to the air quality.

By adopting the optional embodiment, indoor air enters the air inlet area through the air inlet, the air quality sensor is arranged at the air inlet, and the air quality sensor detects the air quality of the air inlet, namely the air quality of the indoor air. The air quality sensor is connected with the controller, and the air quality sensor can transmit the air quality to the controller. The fresh air valve is connected with the controller, and the controller can control the fresh air valve to work according to the quality difference of the air so as to adjust the opening and closing of the fresh air opening 130.

For example, when the controller determines that the indoor air quality is good, the controller controls the fresh air valve to close the fresh air opening 130, and fresh air is not fed into the room; when the controller judges that the indoor air quality is relatively poor, the controller controls the fresh air valve to open the fresh air opening 130 so that the outdoor air enters the room, and the indoor air quality is improved.

Optionally, the air quality sensor comprises a carbon dioxide sensor for detecting a carbon dioxide concentration of the indoor air. Under the condition that the concentration of the carbon dioxide is less than the preset concentration, the controller judges that the indoor air quality is good, and the controller is configured to control the fresh air valve to close the fresh air opening 130. Under the condition that the concentration of the carbon dioxide is greater than or equal to the preset concentration, the controller judges that the indoor air quality is poor, and the controller is configured to control the fresh air valve to open the fresh air opening 130 so that outdoor air enters the room and the indoor air quality is improved.

Adopt this optional embodiment, advance the new trend according to the indoor air quality, can improve indoor air quality when the indoor air quality is relatively poor, can also make the machine only carry out the heat transfer to the indoor air in the air conditioning when the indoor air quality is better simultaneously, improve the heat transfer effect, avoid the energy consumption extravagant.

As shown in fig. 2 and 4, in some alternative embodiments, the indoor unit of an air conditioner further includes a fresh air duct 300. One end of the fresh air duct 300 is communicated with the fresh air inlet 130, the other end of the fresh air duct 300 is suitable for being communicated with the outside through a wall, and the cross-flow fan 200 drives the outdoor air to flow into the circulation space 140 through the fresh air duct 300 and the fresh air inlet 130 and then flow out of the air outlet.

With this alternative embodiment, one end of the fresh air duct 300 is communicated with the fresh air opening 130, and the other end of the fresh air duct 300 is communicated with the outside through the wall body, so that the outdoor air can enter the intake area through the fresh air duct 300 through the fresh air opening 130. The cross flow fan 200 drives outdoor air to flow through the fresh air pipe 300, the fresh air inlet 130, the air inlet area, the cross flow fan 200 and the air outlet area in sequence and then flow into the room through the air outlet.

In some optional embodiments, the air conditioning indoor unit further comprises an air purification module. The air purification module is disposed in the fresh air inlet 130 and/or the fresh air duct 300, and is used to purify the outdoor air flowing into the air inlet region, and the air purification module includes a filter and/or an ultraviolet lamp.

By adopting the optional embodiment, the air purification module is arranged in the fresh air inlet 130 and/or the fresh air pipe 300, so that the outdoor air flowing into the air inlet area can be purified, and dust, impurities, bacteria and the like in the outdoor air are prevented from entering the indoor unit of the air conditioner or even indoors, so that the tidiness of the indoor unit of the air conditioner is ensured, and the indoor air quality is improved.

Optionally, the filter comprises a primary filter screen and/or a HEPA filter.

As shown in fig. 1, 2 and 3, in some alternative embodiments, the housing 100 includes an upper housing 110 and a rear housing 120. The upper casing 110 is provided with an air inlet, the rear casing 120 is connected to the rear end of the upper casing 110, and the rear casing 120 is provided with a fresh air inlet 130.

With this alternative embodiment, the indoor unit of the air conditioner is located close to the wall, i.e., the rear casing 120 of the indoor unit of the air conditioner is closer to the wall. The upper shell 110 is provided with an air inlet, and the air inlet is not shielded, so that the situation that a wall or other objects block indoor air from entering the indoor unit of the air conditioner through the air inlet can be avoided. The rear shell 120 is provided with the fresh air opening 130, the rear shell 120 is arranged opposite to the wall, and the fresh air pipe 300 can be directly communicated with the fresh air opening 130 after penetrating through the wall, so that the condition that the fresh air pipe 300 can be communicated with the fresh air opening 130 only by bending after penetrating through the wall is avoided. Like this, reducible fresh air pipe 300's length, and can reduce fresh air pipe 300's the installation degree of difficulty, improve user's experience.

Optionally, the indoor unit of the air conditioner further includes a heat exchanger, the heat exchanger is disposed in the air outlet area, and the cross flow fan 200 drives air to flow through the heat exchanger and then flow to the air outlet.

By adopting the optional embodiment, under the condition that outdoor air enters the indoor unit of the air conditioner, the outdoor air and the indoor air are mixed and exchange heat in the air inlet area, the cross-flow fan 200 drives the mixed indoor air and outdoor air to flow to the air outlet area after passing through the cross-flow fan 200, and then the mixed indoor air and outdoor air flow to the indoor through the air outlet. The indoor air and the outdoor air can be further mixed and heat-exchanged inside the cross flow fan 200, and a mixing path of the indoor air and the outdoor air is extended to form uniform mixed air. The heat exchanger is arranged in the air outlet area, and the mixed air exchanges heat when flowing through the heat exchanger. Indoor air and outdoor new trend carry out abundant heat exchange before flowing through the heat exchanger, reduce the difference in temperature of outdoor new trend and indoor air, carry out the heat transfer through the heat exchanger again, like this, can make the mixed wind temperature that the indoor set of air conditioner blew out unanimous, improve user's use and experience.

The embodiment provides an air conditioner, including any one the air conditioning indoor set of above-mentioned.

The air conditioner provided by the embodiment of the present disclosure includes the air conditioner indoor unit described in any one of the above embodiments, and therefore, has all the beneficial effects of the air conditioner indoor unit described in any one of the above embodiments, and is not described herein again.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify 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 indoor unit of an air conditioner, comprising:

a housing (100) configured with an air intake, a fresh air intake (130), an air outlet and a flow-through space (140);

the cross-flow fan (200) is arranged in the circulation space (140) and divides the circulation space (140) into an air inlet area and an air outlet area which are communicated, the air inlet and the fresh air inlet (130) are communicated with the air inlet area, outdoor air can enter the air inlet area through the fresh air inlet (130), the air outlet is communicated with the air outlet area, the cross-flow fan (200) comprises a straight tooth part (210) and an oblique tooth part (220), a first blade (211) of the straight tooth part (210) extends along the axial direction of the cross-flow fan (200), a break angle is formed between a second blade (221) of the oblique tooth part (220) and the axial line of the cross-flow fan (200), and the orthographic projection of the fresh air inlet (130) on the cross-flow fan (200) is completely positioned in the straight tooth part (210).

2. An indoor unit of an air conditioner according to claim 1,

the inclined tooth part (220) is located on one side of the straight tooth part (210), the projection of the inclined tooth part (220) in a reference plane is an orthographic projection, the second blade (221) of the orthographic projection extends in an inclined mode towards the direction far away from the straight tooth part (210) from the top to the bottom, so that the inclined tooth part (220) drives air to blow out towards the side far away from the fresh air opening (130), and the reference plane is a plane perpendicular to the front view direction.

3. An indoor unit of an air conditioner according to claim 2,

the extension length of the straight tooth part (210) is less than or equal to the extension length of the inclined tooth part (220).

4. An indoor unit of an air conditioner according to claim 1, further comprising:

and the fresh air valve is arranged on the fresh air port (130) and used for adjusting the opening and closing of the fresh air port (130).

5. An indoor unit of an air conditioner according to claim 4, further comprising:

the air quality sensor is arranged at the air inlet and used for detecting the air quality of indoor air;

and the controller is used for controlling the work of the fresh air valve according to the air quality.

6. An indoor unit of an air conditioner according to claim 1, further comprising:

one end of the fresh air pipe (300) is communicated with the fresh air port (130), the other end of the fresh air pipe (300) is suitable for being communicated with the outside through a wall, and the cross-flow fan (200) drives outdoor air to flow into the circulation space (140) through the fresh air pipe (300) and the fresh air port (130) and then flow out of the air outlet.

7. An indoor unit of an air conditioner according to claim 6, further comprising:

the air purification module is arranged in the fresh air opening (130) and/or the fresh air pipe (300) and used for purifying outdoor air flowing into the air inlet area, and the air purification module comprises a filter and/or an ultraviolet lamp.

8. The air conditioning indoor unit of claim 1, wherein the casing (100) comprises:

the upper shell (110) is provided with the air inlet;

the rear shell (120) is connected with the rear end of the upper shell (110), and the fresh air opening (130) is formed in the rear shell (120).

9. An indoor unit of an air conditioner according to any one of claims 1 to 8, further comprising:

the heat exchanger is arranged in the air outlet area, and the cross flow fan (200) drives air to flow through the heat exchanger and then flow to the air outlet.

10. An air conditioner characterized by comprising the indoor unit of an air conditioner according to any one of claims 1 to 9.

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