CN217357228U

CN217357228U - Air conditioner indoor unit and air conditioner

Info

Publication number: CN217357228U
Application number: CN202220341979.9U
Authority: CN
Inventors: 任豪; 牛天新; 薛兴发; 田华; 刘军堂; 李国行; 郝本华
Original assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Air Conditioner Gen Corp Ltd; Qingdao Haier Air Conditioning Electric Co Ltd; Haier Smart Home Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-09-02
Anticipated expiration: 2032-02-18

Abstract

The application relates to the technical field of air conditioning, and discloses an air-conditioning indoor unit which comprises a casing, a double-through-flow air duct assembly, a fan and a fan, wherein the casing is provided with an air inlet; the heat exchanger is arranged on the shell and is positioned between the double-through-flow air duct assembly and the air inlet; the heating element is arranged 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, and the heating efficiency of the heating element is improved; wherein, a heating element is correspondingly arranged on part or all of the air ducts, so that the air flow heated by the heating element is blown out through the corresponding air duct. All air channels are correspondingly provided with a heating element, so that the air outlet temperature of the indoor unit of the air conditioner can be increased, the air outlet temperature of the air channels can be controlled, and the air outlet temperature of different air channels can be adjusted under the condition that part of the air channels are correspondingly provided with the heating element, so that the aim of controlling the temperature in a partitioned mode is fulfilled. The application also discloses an air conditioner.

Description

Air conditioner indoor unit and air conditioner

Technical Field

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

Background

At present, a cabinet air conditioner includes a casing and a dual cross-flow air duct assembly disposed in the casing, the casing includes a front panel component and a rear panel component connected to the front panel component, an evaporator is disposed between an air inlet end of the dual cross-flow air duct assembly and the rear panel component, an electric heater is disposed between the dual cross-flow air duct assembly and the evaporator, and an air flow flows into two air ducts formed by the dual cross-flow air duct assembly after passing through the electric heater and the evaporator and is blown out by a cross-flow fan.

However, when the air flow heated by the electric heater and the evaporator flows into the two air ducts formed by the double-through-flow air duct assembly, the problem of uneven distribution exists, and the air outlet temperatures of the two air ducts are different and cannot be adjusted.

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 nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as 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 air outlet temperature of an air duct is controllable and adjustable.

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

the double-through-flow air duct assembly is arranged in the shell and at least defines two air ducts which are arranged side by side;

the heat exchanger is arranged on the shell and is positioned between the double cross-flow air duct assembly and the air inlet; and

the heating element is arranged 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, and the heating efficiency of the heating element is improved;

and the heating element is correspondingly arranged on part or all of the air channels, so that the air flow heated by the heating element is blown out through the corresponding air channel to improve the air outlet temperature.

In some embodiments, the heat exchanger is of a U-shaped structure and is arranged along the air inlet;

the surface area of the windward side of the heat exchanger is larger than or equal to the air inlet area of the air inlet so as to exchange heat with air flow entering from the air inlet.

In some embodiments, a plurality of the heating elements are arranged side-by-side along the heat exchanger, with the number of the heating elements corresponding to the number of the air ducts.

In some embodiments, the dual cross-flow 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 duct with the volute.

In some embodiments, the volute further comprises:

and the air inlet end is positioned on the leeward side of the heat exchanger and is spaced from the leeward surface of the heat exchanger by a preset distance so that air flow is mixed at the air inlet position of the adjacent air channel, and the air outlet temperature is uniform.

In some embodiments, the first volute tongue is a bent structure bent towards the first air duct, one end of the first volute tongue abuts against 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 of a bending structure bending 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 conditioning indoor unit further includes:

the first through flow fan is arranged in the first air channel and used for driving the airflow in the first air channel to flow;

the first side surface of the volute is of an arc-shaped structure so as to form a first concave space matched with the first through-flow fan, and the first concave space is used for guiding airflow in the first air duct so that the airflow can flow through the first through-flow fan.

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

the second cross-flow fan is arranged in the second air duct and used for driving the airflow in the second air duct to flow;

the second side face of the volute is of an arc-shaped structure so as to form a second concave space matched with the second cross-flow fan, and airflow in the second air duct is guided to flow through the second cross-flow fan.

In some embodiments, the dual cross-flow duct assembly further comprises:

the swing blade assembly is rotationally connected with the first volute tongue and/or the second volute tongue so as to adjust the air outlet direction of the corresponding air duct;

and one end of the swinging vane component far away from the volute tongue is matched with the shape of the side surface of the volute.

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, the temperature of the air flow flowing through the heating element and the heat exchanger is higher than that of the air flow flowing through the heat exchanger only, the heating element is correspondingly arranged in all air channels, the air flow heated by the heating element is blown out through the corresponding air channel, the air outlet temperature of the indoor unit of the air conditioner can be improved, the air outlet temperature of the air channels can be controlled, and under the condition that the heating element is correspondingly arranged in part of the air channels, the air outlet temperatures of different air channels can be adjusted, and the purpose of controlling the temperature in a subarea mode is achieved.

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 partial structure view 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 and the heating element provided in the embodiment of the present disclosure.

Reference numerals:

10: a housing; 101: an air inlet; 20: a heat exchanger; 30: a heating element; 40: a volute; 401: a first side surface; 402: a second side surface; 403: an air inlet end; 404: a first recessed space; 405: a second recessed space; 50: a first volute tongue; 60: a second volute tongue; 90: a swing blade assembly; 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, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the 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. E.g., 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 dual through-flow air duct assembly, a heat exchanger 20, and a heating element 30, where the casing 10 has an air inlet 101, and the dual through-flow air duct assembly is disposed in the casing 10 and defines at least two air ducts arranged side by side; the heat exchanger 20 is arranged on the casing 10 and is positioned between the double cross-flow air duct assembly and the air inlet 101; the heating element 30 is arranged between the air inlet 101 and the heat exchanger 20, so that the air flow entering from the air inlet 101 firstly flows through the heating element 30 and then flows through the heat exchanger 20, and the heating efficiency of the heating element 30 is improved; wherein, a heating element 30 is correspondingly arranged on part or all of the air channels, so that the air flow heated by the heating element 30 is blown out through the corresponding air channel, thereby improving the air outlet temperature.

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, the temperature of the air flow flowing through the heating element 30 and the heat exchanger 20 is higher than the temperature of the air flow flowing through only the heat exchanger 20, the heating element 30 is correspondingly arranged in all air channels, and the air flow heated by the heating element 30 is blown out through the corresponding air channel, so that the air outlet temperature of the air-conditioning indoor unit can be increased, the air outlet temperature of the air channels can be controlled, under the condition that the heating element 30 is correspondingly arranged in part of the air channels, the air outlet temperatures of different air channels can be adjusted, and the purpose of controlling the partition temperature is realized.

The air conditioning indoor unit may 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. Then, the whole air flow passes through the heat exchanger 20 to exchange heat with the heat exchanger 20, so as to raise the temperature and achieve the purpose of heating. The air flow after heat exchange by the heat exchanger 20 enters the double cross-flow air duct assembly, corresponds to the corresponding air duct, and is blown out by the cross-flow fan.

The double cross-flow duct assembly is located on the air outlet side of the heat exchanger 20 and defines two ducts arranged side by side in the transverse direction. Wherein, the air inlet area, the air outlet area and the ventilation area of the two air channels can be the same. Therefore, the air-conditioning indoor unit is of a symmetrical structure, processing is facilitated, the attractiveness is improved, the air-conditioning indoor unit is uniform under the condition that airflow flows through the air-conditioning indoor unit, and the stability of the air-conditioning indoor unit is improved.

Both air ducts may correspond to a heating element 30, or one air duct may correspond to a heating element 30 and the other air duct may not correspond to a heating element 30.

When the heating element 30 is arranged on the windward side of the heat exchanger 20, the problem that the heating effect of the indoor unit of the air conditioner is reduced due to the fact that the flow of air flowing through the heating element 30 is reduced under the obstruction of the heat exchanger 20 by air flow sucked from the air inlet 101 is avoided, and the heating efficiency of the heating element 30 is reduced.

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.

A heating element 30 is disposed corresponding to part or all of the air ducts. In this way, the air flow heated by the heating element 30 is blown out through the corresponding air duct, which not only can improve the air outlet temperature of the indoor unit of the air conditioner, but also can help to achieve the purpose of zone temperature control under the condition that part of the air duct is correspondingly provided with the heating element 30, that is, different heating effects in different zones can be achieved, or the air supply zone corresponding to the air duct can be said to be heated quickly.

Alternatively, the heating element 30 may be a PTC heater.

Optionally, the heat exchanger 20 is of a U-shaped structure and is disposed along the air inlet 101; the surface area of the windward side of the heat exchanger 20 is greater than or equal to the air inlet area of the air inlet 101, so as to exchange heat with the air flow entering from the air inlet 101.

The heat exchanger 20 is of a U-shaped configuration and is disposed along the air inlet 101. In particular, 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.

Alternatively, a plurality of heating elements 30 are arranged side by side along the heat exchanger 20, in case the number of heating elements 30 corresponds to the number of air ducts.

Under the condition that the quantity of wind channel and heating element 30 is two and more, a plurality of heating element 30 set up side by side along heat exchanger 20, like this, prevent on the one hand to take place to interfere between a plurality of heating element 30, on the other hand helps guaranteeing that the air current after heating by heating element 30 directly flows through heat exchanger 20, carries out the heat transfer.

The plurality of heating elements 30 are arranged side by side along the heat exchanger 20, i.e. along the surface of the heat exchanger 20. Optionally, a preset distance remains between the heating element 30 and the heat exchanger 20. Therefore, the mutual action caused by contact when the heating element 30 and the heat exchanger 20 work simultaneously can be avoided, and the service life and the heating effect of the heating element are not influenced.

Optionally, the dual cross-flow 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 wind 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. In this way, the first air duct 100 and the second air duct 200 can be symmetrically arranged. Under the condition that the air conditioner 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 conditioner indoor unit in the working process is improved, and the air conditioner 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 dual crossflow duct assembly further comprises a first crossflow blower and a second crossflow blower; the first through flow fan is vertically arranged in the first air duct 100; the second cross flow fan is vertically disposed in the second air duct 200, and is symmetrically disposed with the first cross flow fan. The flow of air in the first air duct 100 is driven by a first crossflow blower, and the flow of air in the second air duct 200 is driven by a second crossflow blower. The first cross flow fan and the second cross flow fan are symmetrically arranged, so that the stability of the indoor unit of the air conditioner is improved.

Optionally, the volute 40 further comprises: and the air inlet end 403 is located on the leeward side of the heat exchanger 20 and is spaced from the leeward side of the heat exchanger 20 by a preset distance, so that air flow is mixed at the air inlet position of the adjacent air channel, and the outlet air temperature is uniform.

The volute 40 is generally made of plastic, and a preset distance is reserved between the air inlet end 403 of the volute 40 and the leeward side of the heat exchanger 20, so that overheating of the volute 40 caused by overheating of the heat exchanger 20 can be avoided, and the volute 40 is deformed to further influence the use effect.

In addition, the distance between the air inlet end 403 of the volute 40 and the leeward side of the heat exchanger 20 is preset, and after the air flow flows out through the heat exchanger 20, the air flow can be mixed before entering the air channels, that is, at the air inlet positions of the adjacent air channels, so that the air outlet temperature of the adjacent air channels is uniform.

Optionally, the first volute tongue 50 is a bent structure bent toward the first air duct 100, one end of the first volute tongue 50 is in contact with the heat exchanger 20, and the other end is connected to the casing 10.

The first volute tongue 50 is a bent structure bent toward the first air duct 100 to match with the first through-flow fan and to 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 a bent structure bent toward 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 to the casing 10.

The second volute tongue 60 is a bent structure bent toward 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 indoor unit of an air conditioner further includes: the first through flow fan is arranged in the first air duct 100 to drive 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 404 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 volute 40 being an arc-shaped structure, the first concave space 404 formed by the volute 40 due to the arc-shaped structure is adapted to the first through-flow fan. The first cross flow fan is surrounded in a partially surrounded state by the first concave space 404.

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, turbulence of airflow in the flowing process can be prevented, and on the other hand, the first through-flow fan is surrounded by the first concave space 404 in a half-surrounding mode, so that the compactness of the structure of the indoor unit is improved, and the size of the indoor unit 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 scroll 40 is of an arc structure to form a second concave space 405 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 arc-shaped second side 402 of the volute 40, the second concave space 405 formed by the volute 40 due to the arc-shaped structure is adapted to the second crossflow blower. The second cross flow fan is surrounded in a partially surrounded state by the second concave space 405.

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 air flow can be prevented from generating turbulence in the flowing process, on the other hand, the second cross-flow fan is also surrounded by the first concave space 404 in a half-surrounding mode, the compactness of the structure of the indoor unit is improved, and the size of the indoor unit is reduced.

Optionally, the dual cross-flow duct assembly further comprises: the swing blade assembly 90 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 90 far away from the volute tongue matches the shape of the side surface of the volute casing 40.

Under the condition that the swing blade assembly 90 is rotatably connected to the first volute tongue 50, the air outlet direction of the first air duct 100 is adjusted. And under the condition that the swing blade assembly 90 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 90 is rotatably connected to the first volute tongue 50 and/or the second volute tongue 60, so that the situation that the swing blade assembly 90 is arranged on the volute 40 to cause large pressure on the volute 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 90 far away from the volute tongue is matched with the side shape of the volute 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 90 and ensures the adjustability of the swing blade assembly 90 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 double cross-flow air duct assembly, a heat exchanger 20 and a heating element 30, wherein the shell 10 is provided with an air inlet 101, and the double cross-flow air duct assembly is arranged in the shell 10 and at least defines two air ducts which are arranged side by side; the heat exchanger 20 is arranged on the casing 10 and is positioned between the double cross-flow air duct assembly and the air inlet 101; the heating element 30 is arranged between the air inlet 101 and the heat exchanger 20, so that the air flow entering from the air inlet 101 firstly flows through the heating element 30 and then flows through the heat exchanger 20, and the heating efficiency of the heating element 30 is improved; wherein, a heating element 30 is correspondingly arranged on part or all of the air channels, so that the air flow heated by the heating element 30 is blown out through the corresponding air channel, thereby improving the air outlet temperature.

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, the temperature of the air flow flowing through the heating element 30 and the heat exchanger 20 is higher than the temperature of the air flow flowing through only the heat exchanger 20, the heating elements 30 are correspondingly arranged in all air channels, and the air flow heated by the heating elements 30 is blown out through the corresponding air channels, so that the air outlet temperature of the indoor unit of the air conditioner can be increased, the air outlet temperature of the air channels can be controlled, under the condition that part of the air channels are correspondingly provided with the heating elements 30, the air outlet temperatures of different air channels can be adjusted, and the purpose of controlling the partition temperature is realized.

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 illustrated in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. The utility model provides an indoor unit of air conditioner, includes the casing, the casing is equipped with the air intake, its characterized in that still includes:

2. An indoor unit of an air conditioner as claimed in claim 1, wherein the heat exchanger has a U-shaped structure and is disposed along the air inlet;

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

the plurality of heating elements are arranged side by side along the heat exchanger with the number of heating elements corresponding to the number of air ducts.

4. The indoor unit of an air conditioner according to any one of claims 1 to 3, wherein the double cross-flow duct assembly comprises:

5. An indoor unit of an air conditioner according to claim 4, wherein the scroll casing further includes:

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

the first volute tongue is of a bending structure bending towards the first air duct, one end of the first volute tongue is abutted against 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,

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

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

the second side surface of the volute is of an arc-shaped structure so as to form a second concave space matched with the second cross-flow fan, and the second concave space is used for guiding airflow in the second air duct so that the airflow can flow through the second cross-flow fan.

9. The indoor unit of claim 4, wherein the double cross-flow duct assembly further comprises:

the swinging blade assembly is rotationally connected with the first volute tongue and/or the second volute tongue so as to adjust the air outlet direction of the corresponding air duct;

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