CN217685470U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The application relates to the technical field of air conditioning, and discloses an air-conditioning indoor unit, which comprises a shell, a heat exchanger and a heat exchanger, wherein the shell is provided with an air inlet; the heating element is positioned between the air inlet and the heat exchanger, so that the air flow entering from the air inlet firstly flows through the heating element and then flows through the heat exchanger; the heating element is rotatably connected to the shell, and under the refrigerating working condition, the length direction of the cross section of the heating element is parallel to the flowing direction of the airflow so as to reduce resistance to the airflow flowing in from the air inlet. Rotate to connect on the casing through heating element, under the refrigeration operating mode, rotate heating element and predetermine the angle, can avoid heating element to obstruct the air current, reduce the resistance to the air current that flows in from the air intake, guarantee the refrigeration efficiency of air conditioner. The application also discloses an air conditioner.

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

At present, a cabinet air conditioner comprises a casing and a double cross-flow air duct assembly arranged in the casing, wherein the casing comprises a front panel part and a rear panel part connected with the front panel part, a heat exchanger is arranged between an air inlet end of the double cross-flow air duct assembly and the rear panel part, an electric heater is arranged between the heat exchanger and an air inlet, and airflow flows into two air ducts formed by the double cross-flow air duct assembly after passing through the electric heater and the heat exchanger and is blown out by a cross-flow fan.

However, under the refrigeration condition, the electric heater causes a certain obstruction to the air inlet flow, which results in the reduction of the heat exchange efficiency of the heat exchanger and further influences the refrigeration efficiency of the air conditioner.

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, so that the resistance of a heating element to air inlet flow under the refrigeration working condition is reduced.

In some embodiments, the air conditioning indoor unit includes: the casing, the casing is equipped with the air intake, still includes:

the heat exchanger is arranged in the shell and is arranged along the air inlet; and (c) and (d),

the heating element is positioned between the air inlet and the heat exchanger, so that the airflow entering from the air inlet firstly flows through the heating element and then flows through the heat exchanger;

the heating element is rotatably connected to the shell, and under the refrigerating working condition, the length direction of the cross section of the heating element is parallel to the flowing direction of the airflow so as to reduce the resistance to the airflow flowing in from the air inlet.

In some embodiments, the air conditioning indoor unit further includes:

and the driving device is in driving connection with the heating element so as to drive the heating element to rotate on the shell and adjust the setting angle of the heating element.

In some embodiments, the heat exchanger forms a bent structure at a position corresponding to the heating element, so that a concave space is formed by the bent structure to accommodate the heating element.

In some embodiments, the recessed space is formed on the windward side of the heat exchanger such that the airflow passes through the heating element before passing through the heat exchanger.

In some embodiments, the air conditioning indoor unit further includes:

and the air duct assembly is arranged in the shell and is positioned on the leeward side of the heat exchanger so as to guide and blow off air flow after heat exchange with the heat exchanger.

In some embodiments, the air duct assembly comprises:

the volute comprises a first side surface and a second side surface which are oppositely arranged;

the first volute tongue is positioned on one side of the first side surface of the volute and defines a first air channel with the volute; and the combination of (a) and (b),

the second volute tongue is positioned on one side of the second side surface of the volute and defines a second air channel with the volute.

In some embodiments, the bent structure of the heat exchanger includes a protruding portion protruding toward a leeward side, and the protruding portion is disposed corresponding to the scroll casing.

In some embodiments, the volute further comprises:

the air inlet end is abutted to the protruding part or is separated by a preset distance, and both sides of the air inlet end are of arc structures so as to guide the air flow after heat exchange to the corresponding air channel for blowing out.

In some embodiments, the first volute tongue is bent towards the first air duct, one end of the first volute tongue is abutted with the heat exchanger, and the other end of the first volute tongue is connected with the casing; and/or the presence of a gas in the gas,

the second volute tongue is bent towards the second air duct, one end of the second volute tongue is abutted to the heat exchanger, and the other end of the second volute tongue is connected with the shell.

In some embodiments, the air conditioner includes the air conditioner indoor unit provided in the foregoing embodiments.

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

the heating element is arranged between the heat exchanger and the air inlet, so that the temperature of the air flow flowing through the heating element and the heat exchanger is higher than that of the air flow only flowing through the heat exchanger, and the heating temperature of the air flow blown out of the indoor unit of the air conditioner is improved; wherein, rotate through heating element and connect on the casing, under the refrigeration operating mode, rotate heating element and predetermine the angle, can avoid heating element to obstruct the air current, reduce the resistance to the air current that flows in from the air intake, guarantee the refrigeration efficiency of air conditioner.

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 partial structure of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 2 is a partial schematic structural view of another view angle of the indoor unit of the air conditioner according to the embodiment of the present disclosure;

FIG. 3 is a schematic cross-sectional view of FIG. 2;

fig. 4 is a schematic structural diagram of the heat exchanger provided by the embodiment of the disclosure.

Reference numerals:

10: a housing; 101: an air inlet; 20: a heat exchanger; 201: a bending structure; 202: a recessed space; 203: a projection; 30: a heating element; 40: a volute; 401: a first side surface; 402: a second side surface; 403: an air inlet end; 100: a first air duct; 200: and a second air duct.

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 in the claims, and the above-described drawings of embodiments of the present disclosure, 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 under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.

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 "plurality" means two or more, unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

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.

With reference to fig. 1 to 4, an indoor unit of an air conditioner according to an embodiment of the present disclosure includes a casing 10, a heat exchanger 20, and a heating element 30, where the casing 10 is provided with an air inlet 101, and the heat exchanger 20 is disposed in the casing 10 and along the air inlet 101; the heating element 30 is located between the air inlet 101 and the heat exchanger 20, so that the air flow entering from the air inlet 101 flows through the heating element 30 first and then flows through the heat exchanger 20; wherein, the heating element 30 is rotatably connected to the casing 10, and under the cooling condition, the length direction of the cross section of the heating element 30 is parallel to the flowing direction of the airflow, so as to reduce the resistance to the airflow flowing in from the air inlet 101.

By adopting the air-conditioning indoor unit provided by the embodiment of the disclosure, the heating element 30 is arranged between the heat exchanger 20 and the air inlet 101, and the temperature of the air flow passing through the heating element 30 and the heat exchanger 20 is higher than that of the air flow passing through the heat exchanger 20 only, which is beneficial to improving the heating temperature of the air-conditioning indoor unit; wherein, rotate to connect on casing 10 through heating element 30, under the refrigeration operating mode, rotate heating element 30 and predetermine the angle, can avoid heating element 30 to hinder the air current, reduce the resistance to the air current that flows in from air intake 101.

The air conditioning indoor unit can be a cabinet air conditioner, and the front side of the casing 10 is provided with an air outlet and the rear side is provided with an air inlet 101. The heat exchanger 20 is disposed near the air inlet 101, corresponds to the air inlet 101, and is disposed along the direction of the air inlet 101. Thus, after the air flow is sucked through the air inlet 101, the air flow exchanges heat with the heat exchanger 20, and the sucked air is fully utilized, so that the heat exchange efficiency of the heat exchanger 20 is improved, and the refrigerating or heating effect of the air conditioner is improved.

In the heating condition, the heating element 30 is operated, and a part of the air flow entering from the air inlet 101 firstly flows through the heating element 30 to be heated. The entire airflow then passes through the heat exchanger 20 to exchange heat with the heat exchanger 20 to raise the temperature for heating purposes. The air flow after heat exchange by the heat exchanger 20 enters the air duct assembly and is blown out by the cross flow fan.

In a heating condition, the heating element 30 works, a part of the airflow entering the casing 10 from the air inlet 101 directly flows to the heating element 30, and the airflow is not blocked, so that the flow rate flowing through the heating element 30 is relatively large, the heating element 30 exerts high heating performance, and the heating effect of the air conditioner is improved. Wherein the heating element 30 is vertically disposed in the cabinet 10. The length of the transverse cross-section of the heating element 30 is parallel to the plane of the air inlet 101. In this way, in the heating condition, the contact area of the gas flow with the heating element 30 can be ensured.

In the cooling condition, the heating element 30 is rotated by a predetermined angle so that the length direction of the transverse cross section is parallel to the flow direction of the airflow, thereby reducing the resistance to the airflow flowing in from the air inlet 101. Wherein the preset angle may be 90 °.

It can be understood that the heating element 30 is disposed parallel to the air inlet 101 in the heating condition to enlarge the contact area between the air flow and the heating element 30, and to prolong the contact time between the air flow and the heating element 30 by blocking, so as to improve the heating effect of the heating element 30 on the air flow. Under the refrigeration working condition, the heating element 30 is arranged perpendicular to the air inlet 101, and the heating element 30 is parallel to the air inlet flow, so that the obstruction to the air inlet flow is avoided as much as possible.

Optionally, the indoor unit of an air conditioner further includes: and the driving device is in driving connection with the heating element 30 to drive the heating element 30 to rotate on the machine shell 10 so as to adjust the setting angle of the heating element 30.

The heating element 30 is driven by the driving means to rotate the heating element 30 relative to the casing 10 such that the length direction of the cross section of the heating element 30 is parallel to the direction of the intake airflow to reduce the obstruction of the intake airflow by the heating element 30.

Optionally, the drive means comprises a motor and a shaft. Wherein, the heating element 30 is rotatably connected to the casing 10 through a rotating shaft. The motor drives the heating element 30 to rotate through the connecting piece, and the heating element 30 rotates relative to the machine shell 10 through the rotating shaft, so that the purpose of adjusting the setting angle of the heating element 30 is achieved.

Alternatively, the shaft extends through the heating element 30 and is removably connected to the heating element 30. Wherein, one end of the rotation is connected to the casing 10 in a rotating way, and the other end is connected with the motor. Thus, the motor drives the rotating shaft to rotate, so as to drive the heating element 30 to rotate, and the purpose of adjusting the setting of the heating element 30 is achieved.

The surface area of the windward side of the heat exchanger 20 is greater than or equal to the air intake area of the air intake 101. Therefore, after the air flow is sucked through the air inlet 101, the air flow can completely flow through the heat exchanger 20 to exchange heat with the heat exchanger 20, and the sucked air is fully utilized, so that the heat exchange efficiency of the heat exchanger 20 is improved, and the refrigerating or heating effect of the air conditioner is improved.

The heat exchanger 20 is arranged corresponding to the air inlet 101, and it can be understood that the side edge of the heat exchanger 20 corresponds to the side edge of the air inlet 101, so that the air flow entering from the air inlet 101 completely flows through the heat exchanger 20 to exchange heat, thereby ensuring the cooling or heating effect of the air conditioner.

Optionally, the heat exchanger 20 forms a bending structure 201 at a position corresponding to the heating element 30, so that a concave space 202 is formed by bending the bending structure 201 to accommodate the heating element 30.

It should be noted that, the "bent structure 201" may be understood as not only the heat exchanger 20 is bent to form an included angle, but also the heat exchanger 20 is bent, and the heat exchanger 20 is here in an arc-shaped structure.

Through the concave space 202 formed by the bending structure 201, the heating element 30 is arranged corresponding to the concave space 202, so that the structural space is effectively utilized, and the installation of the heating element 30 does not influence the structural space design of the indoor unit. The requirement of auxiliary heating can be met, and the overall structure size of the indoor unit of the air conditioner can not be increased.

Note that "the heating element 30 is disposed corresponding to the concave space 202", which can be understood as: the heating element 30 is partially or fully located in the recessed space 202. In this way, the air flow heated from the heating element 30 can flow through the recessed space 202 to be blown out from the intermediate air passage. In addition, the heating element 30 is partially or completely positioned in the concave space 202, and the arrangement of the position does not affect the arrangement of the heat exchanger 20, does not occupy space, effectively utilizes space, and enables the whole machine structure to be more compact and small.

With the heating element 30 in the recessed space 202, a certain distance is preset between the heating element 30 and the windward side of the heat exchanger 20 so that the air flow can circulate between the heating element 30 and the heat exchanger 20.

Alternatively, the heating element 30 is disposed corresponding to a middle position of the heat exchanger 20. In this way, the heat exchanger 20 forms the bent structure 201 at the intermediate position. On one hand, the structure symmetry is facilitated, and the processing is convenient; on the other hand, the air flow heated by the heating element 30 can uniformly flow through the left and right parts of the heat exchanger 20, and the phenomenon of local overheating can be avoided.

Optionally, a recessed space 202 is formed on the windward side of the heat exchanger 20 to allow airflow to pass through the heating element 30 before passing through the heat exchanger 20.

The concave space 202 is formed on the windward side of the heat exchanger 20, which not only can prevent the heating element 30 from being arranged between the heat exchanger 20 and the double cross-flow air duct assembly and causes the situation of low heating efficiency of the heating element 30, but also can prevent the heating element 30 from being partially or completely arranged in the concave space 202, the arrangement of the heat exchanger 20 cannot be influenced by the arrangement of the position, the space cannot be occupied, the space is effectively utilized, and the whole structure is more compact and the volume is small.

In the heating condition, the heating element 30 is operated, and a part of the air flow entering from the air inlet 101 firstly flows through the heating element 30 to be heated. That is, the heating element 30 heats the air flow flowing through the concave space 202, the heated air flow flows through the heat exchanger 20 to exchange heat with the heat exchanger 20, and the heat exchanged air flow flows into the air duct and is blown out through the air duct, thereby increasing the heating temperature of the air supply area of the air duct.

Optionally, the indoor unit of an air conditioner further includes: the air duct assembly is arranged in the machine shell 10 and located on the leeward side of the heat exchanger 20 so as to conduct and blow off air flow after heat exchange with the heat exchanger 20.

The air duct assembly is arranged on the leeward side of the heat exchanger 20, so that air flow after heat exchange with the heat exchanger 20 flows into the air duct assembly and moves towards the air outlet direction of the indoor unit under the drainage of the air duct assembly until the air flow is blown out of the indoor unit, and the external environment is cooled or heated.

Optionally, the air duct assembly comprises: a volute 40 including oppositely disposed first and second sides 401, 402; a first volute tongue 50 located at one side of the first side 401 of the volute 40 and defining a first wind path 100 with the volute 40; and a second volute tongue 60 located on one side of the second side 402 of the volute 40 and defining a second air path 200 with the volute 40.

The first side 401 and the second side 402 of the volute 40 are identical and symmetrically arranged, and the first volute tongue 50 and the second volute tongue 60 are identical and symmetrically arranged. Thus, the first air path 100 and the second air path 200 can be symmetrically disposed. Under the condition that the air-conditioning indoor unit works, the air flow difference between the first air duct 100 and the second air duct 200 is reduced, and the pressure in the first air duct 100 and the pressure in the second air duct 200 are kept, so that the stability of the air-conditioning indoor unit in the working process is improved, and the air-conditioning indoor unit is prevented from shaking.

Optionally, the center line of symmetry of the volute 40 is collinear with the center line of symmetry of the heat exchanger 20. Similarly, the center line of symmetry of the volute 40 and the center line of symmetry of the air inlet 101 are collinear. Therefore, the balance of the air flow entering the first air duct 100 and the second air duct 200 after flowing in from the air inlet 101 and exchanging heat through the heat exchanger 20 is facilitated, the stability of the indoor unit of the air conditioner in the working process is ensured, and the indoor unit of the air conditioner is prevented from shaking.

Optionally, the indoor unit of an air conditioner further includes: the first through flow fan is arranged in the first air duct 100 and is used for driving the airflow in the first air duct 100 to flow; the first side 401 of the volute 40 is an arc-shaped structure to form a first concave space matched with the first axial flow fan, so as to guide the airflow in the first air duct 100, so that the airflow flows through the first axial flow fan.

The first through-flow fan is vertically disposed in the first air duct 100, and drives the airflow in the first air duct 100 to flow, that is, the airflow flows from the direction of the heat exchanger 20 to the direction of the air outlet of the first air duct 100. By the first side 401 of the scroll 40 being an arc structure, the first concave space formed by the scroll 40 due to the arc structure is adapted to the first through-flow fan. The first through-flow fan is surrounded in a partially surrounded state through the first concave space.

Under the condition that the first through flow fan works, the airflow on the air inlet side and close to the volute 40 side flows through the first through flow fan under the drainage of the arc-shaped structure, and is blown out by the first through flow fan. Therefore, on one hand, the turbulent flow of the airflow in the flowing process can be prevented, and on the other hand, the first through-flow fan is surrounded by the first sunken space in a half-surrounding mode, so that the compactness of the structure of the indoor unit is improved, and the size is reduced.

Optionally, the indoor unit of an air conditioner further includes: the second cross-flow fan is arranged in the second air duct 200 to drive the airflow in the second air duct 200 to flow; the second side 402 of the volute 40 is an arc-shaped structure to form a second concave space matched with the second cross-flow fan, so as to guide the airflow in the second air duct 200, so that the airflow flows through the second cross-flow fan.

The second cross-flow fan is vertically disposed in the second air duct 200, and drives the airflow in the second air duct 200 to flow, that is, the airflow flows from the direction of the heat exchanger 20 to the direction of the air outlet of the second air duct 200. By the second side 402 of the scroll 40 being in an arc-shaped configuration, the second concave space formed by the scroll 40 due to the arc-shaped configuration is adapted to the second crossflow blower. The second cross flow fan is surrounded in a partially surrounded state by the second concave space.

Under the condition that the second cross-flow fan works, the airflow on the air inlet side and close to the volute 40 side is guided by the arc-shaped structure, and flows through the second cross-flow fan and is blown out by the second cross-flow fan. Therefore, on one hand, the turbulence of the airflow in the flowing process can be prevented, on the other hand, the second cross flow fan is surrounded by the first sunken space in a half-surrounding mode, the compactness of the indoor unit structure is improved, and the size is reduced.

Optionally, the bent structure 201 of the heat exchanger 20 includes a protruding portion 203 protruding toward the leeward side, and the protruding portion 203 is disposed corresponding to the scroll case 40.

The convex part 203 that the structure 201 of buckling of heat exchanger 20 is to the leeward side is convex, this is the preferential structure formation of structure 201 of buckling, namely, through the convex part 203 to the leeward side, can form aforementioned concave space 202 in the windward side of heat exchanger 20 on the one hand, can also extend towards middle wind channel direction through convex part 203, thereby and the clearance between two through-flow wind channel subassemblies is littleer, make the separation effect to adjacent wind channel air current better, the mixed flow effect that prevents adjacent wind channel has been improved.

The convex part 203 is arranged corresponding to the volute 40, which is beneficial to the symmetrical arrangement of the structure and improves the stability of the indoor unit; on the other hand, the protruding portion 203 is located at the middle position of the heat exchanger 20, and after flowing through the protruding portion 203, the airflow split by the volute 40 can uniformly flow through the first air duct 100 and the second air duct 200, so that the uniformity of the outlet air temperatures of the two air ducts is improved.

Optionally, the volute 40 further comprises: the air inlet end 403 is abutted to the protruding portion 203 or spaced by a preset distance, and both sides of the air inlet end 403 are arc-shaped structures so as to guide the air flow after heat exchange to the corresponding air duct for blowing out.

Under the condition that air inlet end 403 is abutted to protruding portion 203, it can be ensured that the air flows flowing out of protruding portion 203 respectively flow into the corresponding air channels, thereby effectively avoiding the problem of mixed flow between adjacent air channels.

In practical applications, the volute 40 is generally made of plastic, and thus, under the condition that the preset distance is set between the air inlet end 403 and the protruding portion 203, the air inlet end 403 of the volute 40 is prevented from being overheated due to overheating of the heat exchanger 20, and further deformation is prevented from affecting the use effect. In addition, after the air flow flows out through the heat exchanger 20, the air flow can be mixed before entering the air channels, namely, at the air inlet positions of the adjacent air channels, so that the air outlet temperature of the adjacent air channels is uniform.

Generally, the air inlet end 403 of the volute 40 is close to the protrusion 203 and is preset at a reasonable distance, so as to ensure that the occurrence of serious mixed flow between adjacent air ducts is avoided, and the service life and the use effect of the volute 40 are ensured.

In addition, both sides of the air inlet end 403 of the volute 40 are arc-shaped structures, which is helpful for guiding the air flow flowing out from the protrusion 203 to a corresponding air duct to blow out under the drainage of the arc-shaped decoupling strands, thereby further avoiding the problem of turbulent flow.

Optionally, the first volute tongue 50 is bent towards the first air duct 100, and one end of the first volute tongue 50 abuts against the heat exchanger 20, and the other end is connected to the casing 10.

The first volute tongue 50 is a bending structure bending towards the first air duct 100 to match with the first through-flow fan and guide the air flow in the first air duct 100. One end of the first volute tongue 50 is abutted against the heat exchanger 20, and the other end is connected with the casing 10. Therefore, on one hand, the air flow after heat exchange of the heat exchanger 20 can be ensured to flow into the corresponding air channel, so that the utilization rate of the air flow after heat exchange of the heat exchanger 20 is ensured, namely, the heating or refrigerating effect of the air conditioner is ensured, and on the other hand, the stability of the indoor unit of the air conditioner is facilitated.

Optionally, the second volute tongue 60 is bent toward the second air duct 200, and one end of the second volute tongue 60 abuts against the heat exchanger 20 and the other end is connected to the casing 10.

The second volute tongue 60 is a bending structure bending towards the second air duct 200 to be matched with the second through-flow fan and to guide the air flow in the second air duct 200. One end of the second volute tongue 60 is abutted against the heat exchanger 20, and the other end is connected with the casing 10. Therefore, on one hand, the air flow after heat exchange of the heat exchanger 20 can be ensured to flow into the corresponding air channel, so that the utilization rate of the air flow after heat exchange of the heat exchanger 20 is ensured, namely, the heating or refrigerating effect of the air conditioner is ensured, and on the other hand, the stability of an indoor unit of the air conditioner is facilitated.

Optionally, the air duct assembly further comprises: the swing blade assembly 70 is rotatably connected to the first volute tongue 50 and/or the second volute tongue 60 so as to adjust the air outlet direction of the corresponding air duct; wherein, the end of the swing blade assembly 70 far away from the volute tongue matches with the shape of the side surface of the volute 40.

Under the condition that the swing blade assembly 70 is rotatably connected to the first volute tongue 50, the air outlet direction of the first air duct 100 is adjusted. Under the condition that the swing blade assembly 70 is rotatably connected with the second volute tongue 60, the air outlet direction of the second air duct 200 is adjusted.

The swing blade assembly 70 is rotatably connected to the first volute tongue 50 and/or the second volute tongue 60, so that on one hand, the situation that the swing blade assembly 70 is arranged on the volute casing 40 to cause large pressure on the volute casing 40 is avoided; on the other hand, the effect of adjusting the air outlet direction of the air duct is better.

The end of the swing blade assembly 70 far away from the volute tongue is matched with the side shape of the volute casing 40, which is beneficial to the coverage of the air flow blown out from the corresponding air duct in the swing process of the swing blade assembly 70 and ensures the adjustability of the swing blade assembly 70 to the air flow direction of most of the air flow blown out from the air duct.

With reference to fig. 1 to 4, an embodiment of the present disclosure provides an air conditioner including an air conditioner indoor unit provided in the above embodiment. The air-conditioning indoor unit comprises a shell 10, a heat exchanger 20 and a heating element 30, wherein the shell 10 is provided with an air inlet 101, and the heat exchanger 20 is arranged in the shell 10 and arranged along the air inlet 101; the heating element 30 is located between the air inlet 101 and the heat exchanger 20, so that the air flow entering from the air inlet 101 flows through the heating element 30 first and then flows through the heat exchanger 20; wherein, the heating element 30 is rotatably connected to the casing 10, and under the cooling condition, the length direction of the cross section of the heating element 30 is parallel to the flowing direction of the airflow, so as to reduce the resistance to the airflow flowing in from the air inlet 101.

By adopting the air conditioner provided by the embodiment of the disclosure, the heating element 30 is arranged between the heat exchanger 20 and the air inlet 101, and the temperature of the air flow passing through the heating element 30 and the heat exchanger 20 is higher than that of the air flow passing through the heat exchanger 20 only, which is beneficial to improving the heating temperature of the indoor unit of the air conditioner; wherein, rotate through heating element 30 and connect on casing 10, under the refrigeration operating mode, rotate heating element 30 and predetermine the angle, can avoid heating element 30 to hinder the air current, reduce the resistance to the air current that flows in from air intake 101.

The above description and the 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. The utility model provides an air-conditioning indoor unit, includes the casing, the casing is equipped with the air intake, its characterized in that still includes:

the heat exchanger is arranged in the shell and is arranged along the air inlet; and (c) and (d),

the heating element is positioned between the air inlet and the heat exchanger, so that the airflow entering from the air inlet flows through the heating element firstly and then flows through the heat exchanger;

the heating element is rotatably connected to the shell, and under the refrigerating condition, the length direction of the cross section of the heating element is parallel to the flowing direction of the airflow so as to reduce the resistance to the airflow flowing in from the air inlet.

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

and the driving device is in driving connection with the heating element so as to drive the heating element to rotate on the shell and adjust the setting angle of the heating element.

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

the heat exchanger forms a bending structure at a position corresponding to the heating element so as to form a concave space through the bending structure and accommodate the heating element.

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

the recessed space is formed on the windward side of the heat exchanger so that the air flow passes through the heating element first and then passes through the heat exchanger.

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

and the air duct assembly is arranged in the shell and is positioned on the leeward side of the heat exchanger so as to guide and blow off air flow after heat exchange with the heat exchanger.

6. An indoor unit of an air conditioner according to claim 5, wherein the air duct assembly includes:

the volute comprises a first side surface and a second side surface which are oppositely arranged;

the first volute tongue is positioned on one side of the first side surface of the volute and defines a first air channel with the volute; and (c) and (d),

the second volute tongue is positioned on one side of the second side surface of the volute and defines a second air duct with the volute.

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

the bending structure of the heat exchanger comprises a protruding part protruding towards the leeward side, and the protruding part and the volute are correspondingly arranged.

8. An indoor unit of an air conditioner according to claim 7, wherein the scroll casing further includes:

the air inlet end is abutted to the protruding part or is separated by a preset distance, and both sides of the air inlet end are of arc structures so as to guide the air flow after heat exchange to the corresponding air channel for blowing out.

9. An indoor unit of an air conditioner according to claim 6,

the first volute tongue is bent towards the first air duct, one end of the first volute tongue is abutted to the heat exchanger, and the other end of the first volute tongue is connected with the shell; and/or the presence of a gas in the gas,

the second volute tongue is bent towards the second air duct, one end of the second volute tongue is abutted to the heat exchanger, and the other end of the second volute tongue is connected with the shell.

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

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