CN215909215U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model provides an air conditioner indoor unit, and belongs to the technical field of air conditioners. The air-conditioning indoor unit comprises a shell and a fan, wherein the shell is provided with an air outlet; the air duct cavity is defined in the shell corresponding to the air outlet and used for guiding the flow direction of indoor air; the fresh air cavity is adjacent to and communicated with the air channel cavity; the air outlet of the fresh air component is communicated with the fresh air cavity so as to guide fresh air into the fresh air cavity; and the heat conducting fin is provided with a first heat conducting part positioned in the fresh air cavity and a second heat conducting part positioned in the air channel cavity so as to balance the temperature of the fresh air in the fresh air cavity and the temperature of the air in the air channel cavity through heat conduction. The indoor unit of the air conditioner can conduct heat between fresh air and indoor air, so that the temperature difference is reduced, and condensation is avoided.

Description

Indoor unit of air conditioner

Technical Field

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

Background

In the correlation technique, fresh air conditioner can introduce outdoor fresh air indoor usually to reach the purpose of improving indoor air quality, however, under the great condition of indoor outer difference in temperature, the air conditioner is when introducing fresh air, because the fresh air can produce the condensation phenomenon with indoor difference in temperature greatly.

SUMMERY OF THE UTILITY MODEL

The present invention solves at least one of the technical problems of the related art to some extent.

Therefore, the application aims to provide the indoor unit of the air conditioner, the temperature difference is reduced due to the fact that heat can be conducted between the fresh air and the indoor air, and condensation is avoided.

An air conditioning indoor unit according to the present application includes: a housing having an air outlet; the air duct cavity is limited in the shell corresponding to the air outlet and used for guiding the flow direction of indoor air; the fresh air cavity is adjacent to and communicated with the air channel cavity; the air outlet of the fresh air component is communicated with the fresh air cavity so as to guide fresh air into the fresh air cavity; and the heat conducting fin is provided with a first heat conducting part positioned in the fresh air cavity and a second heat conducting part positioned in the air channel cavity so as to balance the temperature of the fresh air in the fresh air cavity and the temperature of the air in the air channel cavity through heat conduction.

In some embodiments of the present application, the heat conducting sheet is made of a high heat conducting material.

In some embodiments of the present application, the first heat conducting portion is attached to an inner wall of the fresh air cavity, and the second heat conducting portion is disposed through a side wall between the fresh air cavity and the air duct cavity.

In some embodiments of the present application, an end surface of the second heat-conducting portion is flush with an inner wall of the air duct cavity, or the end surface of the second heat-conducting portion protrudes from the inner wall of the air duct cavity.

In some embodiments of the present application, the second heat conduction portion has a plurality arranged at intervals.

In some embodiments of the present application, the outer wall of the air duct cavity adjacent to the fresh air cavity forms an inner wall of the fresh air cavity; the heat-conducting fin is connected on the lateral wall of the air duct cavity.

In some embodiments of the present application, the fresh air chamber and the air duct chamber are communicated through an air mixing port; the position of the air mixing port is marked as X, the communication position of the fresh air cavity and the fresh air assembly is marked as Y, and the heat conducting sheet is positioned between X and Y.

In some embodiments of the present application, further comprising: and the air guide piece is of a hollow structure and is communicated between an air outlet of the fresh air component and the fresh air cavity.

In some embodiments of the present application, a ventilation opening is provided at a lower end of the fresh air cavity, and an upper end of the air guide member is opposite to the ventilation opening.

In some embodiments of the present application, the air outlet has a first air outlet and a second air outlet which are arranged at intervals; the air duct cavity comprises a first air duct cavity corresponding to the first air outlet and a second air duct cavity corresponding to the second air outlet, and the side walls, close to each other, of the first air duct cavity and the second air duct cavity and the shell body form a fresh air cavity.

In some embodiments of the present application, the fresh air chamber is divided into a first fresh air chamber and a second fresh air chamber by a partition plate, the first fresh air chamber is communicated with the first air channel chamber, and the second fresh air chamber is communicated with the second air channel chamber; the first fresh air cavity and the second fresh air cavity are respectively provided with a heat conducting fin.

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

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a front view of an air conditioning indoor unit according to an embodiment of the present application;

FIG. 2 is a cross-sectional view taken along line A-A of one embodiment of FIG. 1;

FIG. 3 is an enlarged view of B of FIG. 2;

fig. 4 is a perspective view of an air conditioning indoor unit according to an embodiment of the present application with a front panel omitted;

fig. 5 is a perspective view of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 6 is a perspective view of a scroll casing of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 7 is a perspective view of another perspective view of a scroll casing of an air conditioning indoor unit according to an embodiment of the present application;

fig. 8 is a perspective view of a heat conductive sheet of an air conditioning indoor unit according to an embodiment of the present application;

fig. 9 is a perspective view of a front panel of an air conditioning indoor unit according to an embodiment of the present application;

in the above figures: 10. a housing; 11. an air intake panel; 110. an air inlet; 12. a front panel; 120. an air outlet; 121. a first air outlet; 122. a second air outlet; 123. a first overhanging edge; 124. a second outer extending edge; 14. an air duct cavity; 140. a mixed air port; 140a, a first air mixing opening; 140b, a second air mixing opening; 141. a first air duct cavity; 142. a second air duct cavity; 143. a first air duct section; 144. a second air duct section; 145. a through hole; 15. a volute; 16. an air deflector; 20. a heat exchanger; 30. a fan; 40. a fresh air component; 41. a fan housing; 411. an air suction opening; 412. an air outlet; 42. a fresh air fan; 43. a purification unit; 50. an air guide member; 60. a fresh air cavity; 61. a vent; 62. a first fresh air chamber; 63. a second fresh air cavity; 64. a partition plate; 65. a first separator; 66. a second separator; 70. a water pan; 80. a heat conductive sheet; 81. a first heat-conducting portion; 82. a second heat-conducting portion; 83. a first thermally conductive sheet; 84. a second thermally conductive sheet; 90. a support rod.

Detailed Description

The utility model is described in detail below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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

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

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

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

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

Hereinafter, embodiments of the present application will be described in detail with reference to the accompanying drawings.

The air conditioning indoor unit according to the embodiment of the present application may be a floor type cabinet unit, but the present application is not limited thereto.

Referring to fig. 1 to 4, an air conditioning indoor unit according to an embodiment of the present application includes a case 10, a heat exchanger 20, and a fan 30.

The casing 10 may form an overall appearance of the air conditioning indoor unit. In the present example, the air conditioning indoor unit is generally cylindrical, however in other embodiments, the air conditioning indoor unit may also be in the form of a solid cylinder, an irregular cylinder, or the like.

The casing 10 may include an air intake panel 11 and a front panel 12, and the air intake panel 11 is connected to a rear side of the front panel 12, and both of them enclose an appearance of the indoor unit of the air conditioner.

The air inlet panel 11 is provided with an air inlet 110, and the front panel 12 is provided with an air outlet 120. The intake vent 110 may be in the form of a grill opening and the exhaust vent 120 may be in the form of a rectangular strip. Indoor air enters the housing 10 from the air inlet 110 and is blown out from the air outlet 120.

The outlet 120 is provided with a rotatable air deflector 16 to open/close the outlet 120.

The heat exchanger 20 may be disposed within the housing 10 and on an air moving path from the intake vent 110 to the exhaust vent 120. The heat exchanger 20 serves to absorb heat from or transfer heat to air introduced into the intake vent 110.

A drip tray 70 may be provided below the heat exchanger 20 to collect moisture condensed in the heat exchanger 20. The drain pan 70 may be connected to a drain pipe (not shown) extending to the outside of the case 10, thereby discharging condensed water to the outside of the case 10.

The blower 30 may be disposed within the housing 10 to blow air such that indoor air may flow from the intake vent 110 to the exhaust vent 120. The fan 30 may be a crossflow fan.

The indoor unit of the air conditioner may include an air duct chamber 14 for guiding indoor wind blown out from the fan 30.

The air duct chamber 14 forms a flow path for indoor air to flow from the fan 30 to the outlet 120. The air duct chamber 14 includes a first air duct section 143 and a second air duct section 144. The second air duct section 144 is located downstream of the first air duct section 143, and extends from the outer end of the first air duct section 143 to the air outlet 120. The outlet port 120 may be disposed on an extension line of the indoor wind flow path guided by the second wind tunnel section 144.

Specifically, the first air duct section 143 is formed by the curved surface of the volute 15.

The front panel 12 has a portion 12a extending inwardly from an edge of the outlet 110, the portion 12a interfacing with the volute 15 to form a second air duct section 143.

Under the action of forced convection of the fan 30, indoor air enters the housing 10 from the air inlet 110, exchanges heat with the heat exchanger 20, and is blown out from the air outlet 120 along the air duct cavity 14.

Referring to fig. 4 and 5, the indoor unit of the air conditioner may include a fresh air module 40 for introducing fresh outdoor air into a room.

In the present example, the fresh air component 40 is disposed below the air duct cavity 14; in other embodiments, the fresh air component 40 may also be disposed above the air duct cavity 14.

The fresh air module 40 includes a fan housing 41, a fresh air fan 42, and a purification unit (not shown).

The fan case 41 has an air suction opening 411 and an air discharge opening 412. The air inlet 411 is provided on both left and right sides of the fan case 41, and the air outlet 412 is provided on the upper end of the fan case 41. An air inlet cavity is defined between the side of the air inlet 411 of the fan shell 41 and the shell 10, and the air inlet cavity is communicated with a fresh air pipeline extending to the outside, so that fresh air can enter the air inlet cavity through the fresh air pipeline.

The purification unit is arranged at the air inlet cavity corresponding to the air suction opening 41 and is used for filtering fresh air. The fresh air in the air inlet cavity enters the air suction opening 41 after passing through the purification unit.

The fresh air fan 42 is installed in the fan case 41 corresponding to the air suction opening 41, and is used for promoting the flow of fresh air. The fresh air fan 42 may be in the form of a twin centrifugal fan.

Under the action of forced convection of the fresh air fan 42, fresh outdoor air enters the fan housing 41 through the air suction opening 411 after being filtered by the purification unit along the fresh air pipeline, and is discharged through the air discharge opening 412.

The indoor unit of the air conditioner according to the embodiment of the present application further includes a fresh air chamber 60 communicating with the air outlet 412 of the fresh air assembly 40, so that fresh air flows into the fresh air chamber 60.

The fresh air cavity 60 is communicated with the air duct cavity 14, so that fresh air introduced by the fresh air component 40 can flow into the air duct cavity 14 from the fresh air cavity 60 and then is blown out from the air outlet 120.

When the air conditioning function and the fresh air function operate simultaneously, the fresh air flowing to the air duct cavity 14 from the fresh air cavity 60 and the indoor air are mixed in the air outlet 120 and then blown out from the air outlet 120, so that the fresh air can be quickly diffused to each indoor corner by means of the outlet air flow of the indoor air, and the indoor air improvement speed is increased; in addition, the fresh air is mixed with the indoor air, the temperature of the fresh air can be neutralized through the indoor air, and the discomfort of the temperature sense of a user caused by direct blowing of the fresh air when the indoor and outdoor temperature difference is large is avoided.

In some embodiments, the fresh air chamber 60 may be disposed laterally adjacent to the air duct chamber 14, and a sidewall of the air duct chamber 14 near the fresh air chamber 60 separates the air duct chamber 14 and the fresh air chamber 60, i.e., an outer wall of the air duct chamber 14 is an inner wall of the fresh air chamber 60.

The air mixing opening 140 is arranged on the shared side wall of the air duct cavity 14 and the fresh air cavity 60 so as to communicate the fresh air cavity 60 with the air duct cavity 14.

The air conditioning indoor unit may include a wind guide 50. Air guide 50 is hollow structure, connects between the air exit 412 and the new trend chamber 60 of new trend subassembly 40 to can switch on air exit 412 and new trend chamber 60, make the new trend flow in the new trend chamber 60 along air guide 50.

Specifically, the lower end of the fresh air cavity 60 is provided with a vent 61. The lower end of the air guide 50 is butted with the air outlet 412, and the upper end thereof is butted with the air vent 61.

Typically, the air outlet 412 of the fresh air module 40 is located near the middle of the indoor unit of the air conditioner in the lateral direction, while the fresh air chamber 60 is located closer to the front end of the indoor unit of the air conditioner, and the air outlet 412 is located below the fresh air chamber 60 in the vertical direction. Therefore, the air guide 50 needs to extend from the air outlet 412 to the air vent 61 obliquely upward and forward.

When the indoor outer difference in temperature is great, especially when outdoor temperature is lower, can form the condensation on the lateral wall of new trend chamber 60 because new trend and indoor difference in temperature behind the new trend inflow new trend chamber 60, and the condensation can bring the harm on permeating other spare parts of air conditioner.

In order to prevent the generation of condensation, the indoor unit of an air conditioner may include a heat conductive sheet 80 in combination with fig. 2 and 3. The conducting strip 80 has first conducting portion 81 and second conducting portion 82, first conducting portion 81 is located new trend chamber 60, second conducting portion 82 can wear to establish the lateral wall between new trend chamber 60 and the wind channel chamber 14 and stretch into wind channel chamber 14, thereby conducting strip 80 can carry out the heat conduction with the new trend in the new trend chamber 60 and the indoor wind in the wind channel chamber 14, and then balanced temperature between them, reduce the condensation risk that the temperature difference brought, in addition, new trend and indoor difference in temperature reduce, can promote user's travelling comfort and experience.

In some embodiments, referring to fig. 6 and 7, the first heat conducting portion 81 is substantially in the shape of a belt and can be attached to the inner wall of the fresh air chamber 60, and the second heat conducting portion 82 is in the shape of a cylinder and penetrates through the side wall of the air duct chamber 14. The contact area of the heat-conducting fins 80 and fresh air can be increased by the strip-shaped arrangement, so that the heat conduction efficiency is ensured; and the airflow space of the fresh air cavity 60 occupied by the first heat conducting part 81 can be reduced, and the wind resistance is reduced.

In other embodiments, the first and second heat-conducting portions 81 and 82 may have other shapes.

Specifically, a through hole 145 is formed on a side wall of the air duct chamber 14, and the second heat conduction portion 82 is located in the through hole 145.

The second heat transfer portion 82 may have a plurality of portions arranged at intervals, so that a contact area of the heat transfer sheet 80 with the indoor wind may be increased, and heat transfer efficiency may be improved.

The free end surface of the second heat conducting part 82 can protrude out of the inner wall of the air duct cavity 14, so that the contact area of the heat conducting fins 82 and indoor air can be further increased; alternatively, the free end surface of the second heat conduction portion 82 may be flush with the inner wall of the air duct cavity 14, so that wind resistance of the second heat conduction portion 82 to indoor wind may be avoided.

When the outdoor temperature sensor of the air conditioner detects that the outdoor temperature is low and the fresh air function is started, the air conditioner starts the heat-conducting fins 80 to conduct heat.

Specifically, the heat conductive sheet 80 is made of a highly heat conductive material, and can conduct heat quickly.

In some embodiments, the position of the air mixing opening 140 is denoted as X, the position of the ventilation opening 61 is denoted as Y, and the fresh air inevitably flows from Y to X, so that at least a part of the heat conducting sheet 80 is disposed between X and Y, so that the heat conducting area of the heat conducting sheet 80 can be ensured to cover the fresh air as much as possible, and the heat conducting efficiency can be ensured.

In the present example, the air mixing port 140 is disposed at the middle upper portion of the fresh air cavity 60, and the vent 61 is located at the lower end of the fresh air cavity 60, so that the path from the vent 61 to the air mixing port 140 of the fresh air can be extended, the time for the fresh air to be transferred with heat in the fresh air cavity 60 can be extended, and the balance effect of the fresh air temperature can be improved.

According to an embodiment of the present application, referring to FIG. 2, the air duct chamber 14 may be a dual through-flow air duct. The air outlet 120 and the air duct cavity 14 are provided with two sets which are arranged in bilateral symmetry.

The air outlet 120 includes a first air outlet 121 and a second air outlet 122, and the air duct cavity 14 includes a first air duct cavity 141 and a second air duct cavity 142; the air outlet end of the first air duct cavity 141 is opposite to the first air outlet 121, and the air outlet end of the second air duct cavity 142 is opposite to the second air outlet 122. A cross-flow fan is respectively arranged at the first air duct cavity 141 and the second air duct cavity 142.

Indoor air enters the housing 10 through the indoor air inlet 11, exchanges heat with the heat exchanger 20, and is divided into two paths, one of which flows to the first air duct chamber 141 and the other of which flows to the second air duct chamber 142.

The first outlet 121 and the second outlet 122, and the first air duct cavity 141 and the second air duct cavity 142 are respectively symmetrical with respect to the front and rear central planes of the indoor unit of the air conditioner. The side walls of the first air duct cavity 141 and the second air duct cavity 142 enclose a V-shaped space with a forward opening, and the inner wall of the casing 10 closes the opening of the V-shaped space to form the fresh air cavity 60.

The upper and lower walls of the volute 15 forming the first air duct chamber 141 and the second air duct chamber 142 extend transversely toward the fresh air chamber 60, so as to form the upper and lower walls of the fresh air chamber 60.

Specifically, with reference to fig. 2 and 9, the front panel 12 is provided with a first extending edge 123 and a second extending edge 124, the first extending edge 123 is located at the upper end of the second air duct section 144, and the second extending edge 124 is located at the lower end of the second air duct section 144; the upper end of the volute 15 abuts against the first extending edge 123, and the lower end of the volute 15 abuts against the second extending edge 124.

According to some embodiments of the present application, with continued reference to FIG. 6, the air mixing opening 140 includes a first air mixing opening 140a disposed on the first air duct chamber 141, and a second air mixing opening 140b disposed on the second air duct chamber 142. The fresh air chamber 60 is respectively communicated with the first air mixing opening 140a and the second air mixing opening 140 b.

The fresh air introduced by the fresh air component 40 flows into the fresh air cavity 60 through the air guide 50, and then a part of the fresh air flows into the first air channel cavity 141 through the first air mixing opening 140a, and the other part of the fresh air flows into the second air channel cavity 141 through the second air mixing opening 140 b.

The heat-conducting fin 80 has a first heat-conducting fin 83 disposed below the first air-mixing opening 140a, and a second heat-conducting fin 84 disposed below the second air-mixing opening 140 b. Thus, the heat conduction effect of the fresh air flowing to the first air mixing opening 140a can be ensured through the first heat conduction sheet 83, and the heat conduction effect of the fresh air flowing to the second air mixing opening 140b can be ensured through the second heat conduction sheet 84.

According to some embodiments of the present application, a partition 64 is disposed in the fresh air chamber 60 to divide the fresh air chamber 60 into a first fresh air chamber 62 and a second fresh air chamber 63, so that the first fresh air chamber 62 communicates with the first air channel chamber 141 and the second fresh air chamber 63 communicates with the second air channel chamber 142.

Specifically, the partition plate 64 may be formed by extending upward from the middle of the ventilation opening 61, so that the first ventilation chamber 62 and the second ventilation chamber 63 are both communicated with the ventilation opening 61, and the fresh air at the ventilation opening 61 is divided into two paths, one path of the fresh air flows to the first ventilation chamber 62, and the other path of the fresh air flows to the second ventilation chamber 63.

In some embodiments, the partition plate 64 may have two partition plates 65 and 66, respectively, which are spaced apart from each other, the first partition plate 65 forming a sidewall of the first fresh air chamber 62, and the second partition plate 66 forming a sidewall of the second fresh air chamber 63.

The indoor unit of an air conditioner may include a support rod 90, and the support rod 90 is vertically inserted between the first partition plate 65 and the second partition plate 66 to support the casing 10 and prevent it from being deformed.

According to the application, the fresh air cavity 60 communicated with the air duct cavity 14 and the fresh air assembly 40 is arranged, so that fresh air can flow to the air duct cavity 14 through the fresh air cavity 60; the heat conducting fins 80 are provided with the parts positioned in the fresh air cavity 60 and the air duct cavity 14, so that the heat conducting fins 80 can conduct heat to fresh air and indoor air and balance the temperature of the fresh air and the indoor air, the temperature difference between the fresh air and the indoor air is reduced when the indoor and outdoor temperature difference is large, and condensation is avoided; in addition, the fresh air and the indoor temperature difference are reduced, and the comfort experience of a user can be improved.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

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

a housing having an air outlet;

the air duct cavity is defined in the shell corresponding to the air outlet and used for guiding the flow direction of indoor air;

the fresh air cavity is adjacent to and communicated with the air channel cavity;

the air outlet of the fresh air component is communicated with the fresh air cavity so as to guide fresh air into the fresh air cavity; and

the heat conducting fin is provided with a first heat conducting part positioned in the fresh air cavity and a second heat conducting part positioned in the air channel cavity so as to balance the temperature of the fresh air in the fresh air cavity and the temperature of the air in the air channel cavity through heat conduction.

2. An indoor unit of an air conditioner as claimed in claim 1, wherein the first heat-conducting portion is attached to an inner wall of the fresh air chamber, and the second heat-conducting portion is disposed through a sidewall between the fresh air chamber and the air duct chamber.

3. An indoor unit of an air conditioner according to claim 2, wherein an end surface of the second heat-conducting portion is flush with an inner wall of the air duct chamber, or the end surface of the second heat-conducting portion protrudes from the inner wall of the air duct chamber.

4. An indoor unit of an air conditioner according to claim 2, wherein the second heat-transfer portion is provided in plurality at intervals.

5. An indoor unit of an air conditioner according to claim 1, wherein an outer wall of the air duct chamber adjacent to the fresh air chamber forms an inner wall of the fresh air chamber; the heat conducting fins are connected to the side wall of the air duct cavity.

6. An indoor unit of an air conditioner as claimed in claim 1, wherein the fresh air chamber and the air duct chamber are communicated through an air mixing port; the position of the air mixing port is marked as X, the communication position of the fresh air cavity and the fresh air assembly is marked as Y, and the heat conducting sheet is positioned between X and Y.

7. An indoor unit of an air conditioner according to claim 1, wherein the heat-conducting sheet is made of a high heat-conducting material.

8. An indoor unit of an air conditioner according to claim 1, wherein a vent is provided in the fresh air chamber; the air-conditioning indoor unit further comprises:

the air guide piece is of a hollow structure and communicated with the air outlet of the fresh air component and the air vents.

9. An indoor unit of an air conditioner according to any one of claims 1 to 8, wherein the outlet port has a first outlet port and a second outlet port which are arranged at intervals; the air duct cavity comprises a first air duct cavity corresponding to the first air outlet and a second air duct cavity corresponding to the second air outlet, and the side walls of the first air duct cavity and the second air duct cavity and the shell are enclosed to form the fresh air cavity.

10. An indoor unit of an air conditioner according to claim 9, wherein the fresh air chamber is partitioned into a first fresh air chamber and a second fresh air chamber by a partition plate, the first fresh air chamber is communicated with the first air duct chamber, and the second fresh air chamber is communicated with the second air duct chamber; the first fresh air cavity and the second fresh air cavity are respectively provided with the heat conducting fins.

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