CN217635911U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model provides an indoor unit of air conditioner, include: a casing, on which a fresh air port and a bypass air port are arranged; the fresh air module is used for sucking fresh air from the outdoor and exhausting the fresh air to the indoor through the fresh air port and the bypass air port; the fresh air module is communicated with the fresh air inlet, and the bypass air channel is communicated with the bypass air inlet and the fresh air channel so as to increase the fresh air outlet quantity. The utility model discloses increased new trend air-out area, can effectually improve the influence to indoor temperature after outdoor new trend introduces.

Description

Indoor unit of air conditioner

Technical Field

The utility model relates to an air conditioning technology field especially relates to an indoor unit of air conditioner.

Background

At present, the household appliance industry is in a situation of intense competition, each big competitive product has unique innovation in the aspects of functions, appearance and the like, and the product details are also important factors influencing the purchasing power of consumers. In the related art, the existing fresh air has poor air mixing effect, and the temperature and humidity of the fresh air are not changed rapidly. The experiencing effect of new trend is poor, and the user is difficult to the audio-visual state of seeing the mixed wind switch after opening the new trend function. When the indoor and outdoor temperature difference is large, the problem of large indoor temperature fluctuation caused by the introduction of fresh air is easy to occur.

In view of this, the utility model discloses.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve one of the technical problem in the correlation technique at least to a certain extent.

Therefore, the application aims at providing the air-conditioning indoor unit, so that the air outlet area of fresh air is increased, and the influence of outdoor fresh air introduced on indoor temperature is improved.

In order to achieve the above object, the utility model provides an air-conditioning indoor unit, include:

the shell is provided with a fresh air port and a bypass air port;

the fresh air module is used for sucking fresh air from the outdoor and exhausting the fresh air to the indoor through the fresh air port and the bypass air port;

the fresh air module is communicated with the fresh air port, and the bypass air channel is communicated with the bypass air port and the fresh air channel to increase the fresh air output.

In some embodiments of the present application, a bypass valve is disposed at the bypass tuyere, and the bypass valve is movably connected to the housing to at least partially open or close the bypass tuyere.

In some embodiments of the present application, the bypass air duct is disposed through a side wall of the housing, a sliding groove is disposed on an outer wall surface of the side wall, the bypass valve is disposed in the sliding groove, and the bypass valve movably slides in the sliding groove to at least partially open or close the bypass air opening.

In some embodiments of the present application, a side plate is disposed outside the side wall of the casing, the side plate is connected to the casing, a first tuyere is disposed on the side plate, the first tuyere is disposed corresponding to the bypass tuyere, and the first tuyere is disposed as a porous tuyere.

In some embodiments of this application, be provided with first trip on the curb plate, be provided with first draw-in groove on the lateral wall of casing, first draw-in groove includes aqueduct and joint groove, first trip inserts in the aqueduct, the opening direction orientation of first trip the joint groove promotes the curb plate with first trip with joint groove matched with joint.

In some embodiments of the present application, a second hook is disposed on the side plate, the second hook is matched with the side wall of the housing, and the second hook is clamped on one side of the side wall of the housing.

In some embodiments of the present application, the second hook is disposed near an edge of the side plate, and an opening direction of the second hook and an opening direction of the first hook are disposed in the same direction.

In some embodiments of this application, new trend mouth department is provided with new wind cover, be provided with a plurality of trompils on the new trend cover, new trend cover sets up to the porous wind gap in order to break up the new trend air-out, the trompil on the new wind cover by the center of new wind cover to the periphery of new wind cover increases gradually.

In some embodiments of the present application, a connecting plate is disposed on the fresh air cover, a second slot is disposed on the connecting plate, and a third hook and a connecting hole are disposed on the fixing seat; the connecting plate penetrates through the connecting hole, and the second clamping groove is clamped with the third clamping hook so as to connect the fresh air cover with the fixed seat.

In some embodiments of this application, set up spacing muscle on the fixing base, the new trend covers and is provided with the spacing groove, spacing muscle with the spacing groove cooperation, spacing muscle joint income the spacing inslot, with location and restriction the new trend cover rotates.

Additional aspects and advantages of the invention 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 invention.

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 these 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 rear view of an air conditioning indoor unit according to an embodiment of the present application;

fig. 3 is a schematic view illustrating an installation position of a fresh air module with a base removed from an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 4 is a first schematic structural diagram of a fresh air module of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram 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 first schematic diagram of a side plate and a shell of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

fig. 7 is a schematic structural view of a side panel of an indoor unit of an air conditioner according to an embodiment of the present application;

fig. 8 is a second schematic diagram illustrating disassembly of a side plate and a casing of an indoor unit of an air conditioner according to an embodiment of the present disclosure;

FIG. 9 is an enlarged schematic view of portion A of FIG. 8;

fig. 10 is an assembly schematic view of a fixing seat and a fresh air cover of an indoor unit of an air conditioner according to an embodiment of the present application;

FIG. 11 is a sectional view taken along line B-B of FIG. 10;

fig. 12 is a first schematic view of the fixing base and the fresh air cover of the indoor unit of the air conditioner according to the embodiment of the present application;

fig. 13 is a second schematic view illustrating the fixing base and the fresh air cover of the indoor unit of the air conditioner according to the embodiment of the present application.

In the above figures: a housing 1; an air inlet 101; an air outlet 102; a fresh air port 103; a bypass tuyere 104; a sidewall 105; a chute 106; a first card slot 107; a transition groove 108; a snap-in groove 109; a volute 2; an air inlet 21; an air outlet 22; a fresh air shell 3; a fresh air inlet 31; a fresh air outlet 32; a first shell 33; a second shell 34; a side plate 4; a first tuyere 41; a first hook 42; a second hook 43; a fresh air hood 5; a connecting plate 51; a second card slot 52; a limiting groove 6; a purification frame 7; a fresh air grille 8; a fresh air duct 9; a bypass valve 10; a fixed seat 11; a fresh air duct 111; a bypass air duct 112; a third hook 113; a connection hole 114; a limiting rib 115; a base 12; a heat exchanger 13; a purge port 14.

Detailed Description

The present invention is specifically described 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 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 wall-mounted indoor unit, but the present application is not limited thereto.

Referring to fig. 1 to 6, an air conditioning indoor unit according to an embodiment of the present application includes a case 1 and a base 12. In this embodiment, the side of the wall of the air-conditioning indoor unit hung on the wall is the rear side.

In this embodiment, the casing 1 forms an overall appearance of the indoor unit of the air conditioner, the casing 1 is provided with an air outlet 102 and an air inlet 101, and the air outlet 102 is a strip-shaped structure arranged along a length direction of the indoor unit of the air conditioner. The outlet 102 may be disposed at a lower side of the housing 1 and the inlet 101 may be disposed at an upper side of the housing 1.

The casing 1 is coated on the base 12, an air inlet channel is arranged on the base 12, the air inlet 101 and the air outlet 102 on the casing 1 are communicated through the air inlet channel, indoor air enters the casing 1 from the air inlet 101 and is blown out from the air outlet 102 after passing through the air inlet channel.

The heat exchanger 13 may be disposed in the intake air passage and on a side of the intake air passage near the intake opening 101. The heat exchanger 13 serves to absorb heat from or transfer heat to air introduced into the intake port 101.

A drip tray may be provided below the heat exchanger 13 to collect moisture condensed in the heat exchanger 13. The drip pan may be connected to a drain pipe extending to the outside of the base 12, thereby discharging condensed water to the outside of the indoor unit of the air conditioner. In this embodiment, the water pan may be integrally formed with the base 12, thereby reducing the cost and improving the installation efficiency.

A heat exchange fan may be disposed in the intake air passage to blow air such that indoor air may flow from the intake port 101 to the exhaust port 102.

Under the action of forced convection of the heat exchange fan, indoor air enters the housing 1 from the air inlet 101, exchanges heat with the heat exchanger 13, and is blown out along the air outlet 102.

A fresh air module is arranged in a shell 1 of the indoor unit of the air conditioner, the fresh air module is communicated with a fresh air port 103 on the shell 1, and the fresh air module is used for sucking fresh air from the outside and flowing into the room through the fresh air module and then flowing into the room through the fresh air port 103 and a bypass air port 104.

Specifically, the fresh air module of the indoor unit of the air conditioner comprises a volute 2 and a fresh air shell 3, the volute 2 is arranged in the shell 1, an air suction opening 21 and an air exhaust opening 22 are arranged on the volute 2, the air suction opening 21 is arranged on the side face of the volute 2, and the air exhaust opening 22 is communicated with a fresh air opening 103 and a bypass air opening 104 so as to be communicated with the indoor space. The volute 2 is provided with a fan and a driving motor, an output shaft of the driving motor is connected with the fan, and the driving motor controls the fan to rotate so as to suck indoor or outdoor air from an air suction opening 21 of the volute 2 and discharge the air into indoor space through an air outlet 22 of the volute 2.

The fresh air shell 3 covers the air suction opening 21 of the volute 2, and the fresh air shell 3 is provided with a fresh air inlet 31, a fresh air outlet 32 and a purification opening 14. The fresh air inlet 31 is used for introducing fresh air from the outside, and the fresh air outlet 32 is used for introducing the fresh air introduced from the outside into the volute 2.

The fresh air shell 3 comprises a first shell 33 and a second shell 34, and the first shell 33 and the second shell 34 are connected to form the integral fresh air shell 3. In this embodiment, the fresh air outlet 32 is disposed on the second shell 34, and connects the second shell 34 with the volute 2, wherein the fresh air outlet 32 of the second shell 34 is connected with the air suction opening 21 of the volute 2, so that the air entering the fresh air box from the fresh air inlet 31 enters the volute 2 from the air suction opening 21 through the fresh air outlet 32, and enters the room from the air outlet 22 under the driving of the fan in the volute 2.

In this embodiment, the first shell 33 is further provided with a first gap, the second shell 34 is further provided with a second gap, after the first shell 33 is connected with the second shell 34, the first gap and the second gap are connected to form the purification port 14, and the purification module is inserted into the fresh air shell 3 through the purification port 14.

The purification module is including purifying frame 7 and filter screen, and the filter screen setting is on purifying frame 7, and the filter screen is used for carrying out filtration purification to the new trend, avoids impurity and the flocculus of adulteration in the new trend indoor along with the air admission through spiral case 2.

The fresh air outlet 32 is provided with a fresh air grille 8, and the fresh air grille 8 is arranged in a latticed manner by metal wires in a staggered manner. Fresh air grid 8 sets up for purifying the module and more being close to spiral case 2, and fresh air grid 8 is arranged in further preventing impurity and floccule entering spiral case 2, also can change when wasing the purification module and stretch into fresh air shell 3 with the hand at the user, prevents that the user from stretching into the spiral case 2 with the hand and the mechanical injury who causes.

Fresh air inlet 31 of fresh air shell 3 is connected with fresh air pipe 9, and fresh air pipe 9 passes the wall body and extends to outdoor space, and fresh air pipe 9 is used for introducing outdoor space's fresh air indoor, and the filtration through the filter screen purifies, discharges to indoor to realize indoor fresh air that trades.

Referring to fig. 6-13, in this embodiment, a bypass air opening 104 is further disposed on the housing 1, the air outlet 22 of the volute 2 is connected to the fixing seat 11, the fixing seat 11 is disposed between the fresh air module and the fresh air opening 103, specifically, one end of the fixing seat 11 is fixedly connected to the air outlet 22, and the other end is disposed in the fresh air opening 103. The inside of fixing base 11 is formed with new trend wind channel 111 and bypass wind channel 112, and new trend wind channel 111 feeds through new trend module and new trend wind gap 103, and bypass wind channel 112 is linked together with bypass wind gap 104 and new trend wind channel 111, and the new trend that the new trend module was inhaled from outdoor is discharged to indoor through new trend wind gap 103 and bypass wind gap 104 respectively, has increased the new trend air-out area for the air-out resistance of new trend wind gap 103 department diminishes, thereby has improved the new trend air output.

In this embodiment, the side surface of the housing 1 is provided with a side wall 105, and the bypass air opening 104 is provided on the side wall 105 of the housing 1. The bypass duct 112 extends to the bypass air inlet 104 formed through the side wall 105 of the housing 1 to communicate with the indoor space.

The outer wall surface of the side wall 105 of the casing 1 is provided with a chute 106, the chute 106 is internally provided with a bypass valve 10, the bypass valve 10 is movably connected with the casing 1, and the bypass valve 10 slides in the chute 106 to open or partially open or close the bypass air port 104, so that the fresh air volume can be adjusted according to the air supply demand of actual fresh air.

In this embodiment, the side plate 4 is disposed on the outer side of the side wall 105 corresponding to the bypass air inlet 104, and the side plate 4 is connected to the housing 1 to shield the bypass valve 10, so as to improve the appearance and protect the bypass valve 10, thereby avoiding damage caused by collision during transportation.

The side plate 4 corresponding to the bypass air opening 104 is provided with a first air opening 41 correspondingly communicated with the bypass valve 10, and the first air opening 41 is a porous air opening so as to scatter the fresh air blown out from the first air opening 41, so that the scattered fresh air can be rapidly mixed with the indoor air, the indoor temperature can be rapidly changed, and the air mixing effect of the fresh air and the indoor air can be realized.

In this embodiment, the side plate 4 is detachably connected to the housing 1, specifically, the side plate 4 is provided with a first hook 42, and an opening of the first hook 42 faces toward the front side. The side wall 105 of the housing 1 is provided with a first card slot 107, the first card slot 107 comprises a transition groove 108 and a card slot 109, the card slot 109 is arranged at the front side of the transition groove 108, the card slot 109 is communicated with the transition groove 108, and at the interface of the transition groove 108 and the card slot 109, the interface is gradually reduced from the transition groove 108 to the card slot 109, so that the first card hook 42 can be conveniently inserted into the card slot 109 in a sliding manner, the guiding effect is achieved, and the card connection between the first card hook 42 and the card slot 109 is more convenient.

When the first hook 42 is engaged with the first slot 107, the first hook 42 is first inserted into the transition slot 108. At this time, the opening direction of the first hook 42 faces the engaging groove 109. Because first trip 42 fixed connection is on curb plate 4, promote curb plate 4 so that first trip 42 removes to the direction that is close to joint groove 109, until first trip 42 and joint groove 109 to the cooperation joint, thereby realize that curb plate 4 is connected with lateral wall 105 of casing 1.

The side plate 4 corresponding to the bypass air opening 104 is provided with a second hook 43, and the second hook 43 is arranged on the edge of the rear side of the side plate 4. The second hook 43 is matched with the side wall 105 of the housing 1, and the opening direction of the second hook 43 is the same as the opening direction of the first hook 42 and is arranged towards the front side of the air conditioner. The second hooks 43, when assembled, insert the side walls 105 from the rear side of the housing 1 forward into the opening to effect a snap engagement of the second hooks 43 with the side walls 105 of the housing 1. Meanwhile, in the process that the first hook 42 moves towards the direction close to the clamping groove 109 for clamping, the second hook 43 moves towards the side wall 105 close to the shell 1, so that the clamping of the first hook 42 and the first clamping groove 107 and the clamping of the second hook 43 and the side wall 105 of the shell 1 are synchronously realized, and the side plate 4 is connected with the shell 1.

In this embodiment, the new air cover 5 is disposed at the new air inlet 103, a plurality of openings are disposed on the new air cover 5, and the openings on the new air cover 5 gradually increase from the center of the new air cover 5 to the periphery of the new air cover 5. The fresh air cover 5 is set to be a porous air port so as to break up fresh air outlet of the fresh air port 103, so that the broken up fresh air can be rapidly mixed with indoor air, the indoor temperature can be rapidly changed, and the air mixing effect of the fresh air and the indoor air is realized.

The fresh air cover 5 is connected with the fixed seat 11, a connecting plate 51 is arranged on the periphery of the fresh air cover 5, and the connecting plate 51 is arranged around the edge of the fresh air cover 5 at intervals. One end of the connecting plate 51 is connected to the fresh air cover 5, and the other end extends toward the direction close to the fixing base 11. Each connecting plate 51 is correspondingly provided with a second clamping groove 52. The fixing base 11 is provided with a connecting hole 114 corresponding to the connecting plate 51, and the outer side wall 105 of the fixing base 11 behind the connecting hole 114 is provided with a third hook 113. When the fresh air hood 5 is connected with the fixing base 11, the connecting plate 51 is connected with the connecting hole 114 in a penetrating manner, so that the second clamping groove 52 on the connecting plate 51 is connected with the third clamping hook 113 in a penetrating manner, the connecting hole 114 is connected with the third clamping hook 113 in a clamping manner, the fresh air hood 5 is fixedly connected with the fixing base 11, fresh air sucked by the fresh air module is guided to the fresh air inlet 103 through the fresh air duct 111 in the fixing base 11, and indoor stable fresh air outlet is realized.

In this embodiment, the fixing base 11 is provided with a limiting rib 115, and the limiting rib 115 is disposed on one side close to the fresh air cover 5. The fresh air cover 5 is provided with a limiting groove 6, and the limiting groove 6 is matched with the limiting rib 115. When the fixing base 11 is connected with the limiting rib 115, the limiting rib 115 is clamped into the limiting groove 6, so that the fresh air cover 5 and the fixing base 11 are pre-positioned, and meanwhile, the limiting rib 115 can limit the rotation of the fresh air cover 5 relative to the fixing base 11 after being clamped into the limiting groove 6, so that stable connection is realized.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

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

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (10)

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

the shell is provided with a fresh air port and a bypass air port;

the fresh air module is used for sucking fresh air from the outdoor and exhausting the fresh air to the indoor through the fresh air port and the bypass air port;

the fresh air module is communicated with the fresh air inlet, and the bypass air channel is communicated with the bypass air inlet and the fresh air channel so as to increase the fresh air outlet quantity.

2. An indoor unit of an air conditioner as claimed in claim 1, wherein a bypass valve is provided at the bypass vent, and the bypass valve is movably connected to the casing to at least partially open or close the bypass vent.

3. The indoor unit of claim 2, wherein the bypass duct is disposed through a sidewall of the casing, an outer wall surface of the sidewall is provided with a chute, the bypass valve is disposed in the chute, and the bypass valve is movably slid in the chute to at least partially open or close the bypass air inlet.

4. An indoor unit of an air conditioner as claimed in claim 1, wherein a side plate is provided at an outer side of a sidewall of the casing, the side plate is connected to the casing, and a first air inlet is provided at the side plate, the first air inlet is provided corresponding to the bypass air inlet, and the first air inlet is provided as a porous air inlet.

5. The indoor unit of claim 4, wherein the side plate is provided with a first hook, the side wall of the casing is provided with a first locking groove, the first locking groove comprises a transition groove and a locking groove, the first hook is inserted into the transition groove, an opening direction of the first hook faces the locking groove, and the side plate is pushed to match and lock the first hook with the locking groove.

6. An indoor unit of an air conditioner as claimed in claim 5, wherein the side plate is provided with a second hook, the second hook is engaged with the side wall of the casing, and the second hook is engaged with one side of the side wall of the casing.

7. An indoor unit of an air conditioner according to claim 6, wherein the second hook is provided near an edge of the side plate, and an opening direction of the second hook is provided in the same direction as an opening direction of the first hook.

8. An indoor unit of an air conditioner according to claim 1, wherein the fresh air inlet is provided with a fresh air cover, the fresh air cover is provided with a plurality of openings, the fresh air cover is provided with a porous air outlet to break up fresh air outlet, and the openings in the fresh air cover increase gradually from the center of the fresh air cover to the periphery of the fresh air cover.

9. An indoor unit of an air conditioner as claimed in claim 8, wherein a connecting plate is provided on the fresh air cover, a second locking groove is provided on the connecting plate, and a third locking hook and a connecting hole are provided on the fixing base; the connecting plate penetrates through the connecting hole, and the second clamping groove is clamped with the third clamping hook so as to connect the fresh air cover with the fixed seat.

10. An indoor unit of an air conditioner as claimed in claim 8, wherein the fixing base is provided with a limiting rib, the fresh air cover is provided with a limiting groove, the limiting rib is matched with the limiting groove, and the limiting rib is clamped into the limiting groove to position and limit the rotation of the fresh air cover.

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