CN218763672U

CN218763672U - air conditioner

Info

Publication number: CN218763672U
Application number: CN202223212196.XU
Authority: CN
Inventors: 谈健华
Original assignee: Hisense Guangdong Air Conditioning Co Ltd
Current assignee: Hisense Guangdong Air Conditioning Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-03-28
Anticipated expiration: 2032-11-30

Abstract

The utility model discloses an air conditioner, air conditioner includes: a housing; a heat exchanger; heat transfer fan, heat transfer fan includes: the air channel piece is provided with an air channel main body and a volute tongue, and the volute tongue and the air channel main body are arranged at intervals; the fan piece is arranged in the air channel piece and is arranged at intervals with the volute tongue; and the clearance adjusting device is arranged on the air channel piece and is in transmission fit with the volute tongue so as to adjust the size of the clearance between the volute tongue and the fan piece. From this, through making volute tongue and wind channel main part interval setting, make fan spare and volute tongue interval setting to make clearance adjustment device and volute tongue transmission cooperation, clearance adjustment device can adjust the clearance size between volute tongue and the fan spare like this, realizes the regulation to the wind channel wind pressure, makes its and the operational mode phase-match of air conditioner, thereby promotes the stationarity of air conditioner operation, can change the air supply effect, promotes user's use and experiences.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner technique and specifically relates to an air conditioner is related to.

Background

Along with the development of science and technology, the air conditioner with its indoor temperature that can adjust, the advantage that promotes user's comfort level obtains liking of user gradually. The air conditioner is provided with an air duct piece and a fan, the fan introduces heat exchange airflow into the air duct piece, and the air duct piece limits a flow path of the heat exchange airflow. Under different operation modes of the air conditioner, the air pressure and the wind field formed by the heat exchange airflow in the air duct piece are different, so that the working performance of the air conditioner is also influenced.

In the correlation technique, the structural design of wind channel spare is reasonable inadequately, when the fan operation, there is the wind field in the wind channel spare comparatively disorderly to produce the problem of noise easily, lead to the working property of air conditioner lower, user's use experience is lower.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the present invention is to provide an air conditioner, which can automatically adjust the air pressure and operate more stably.

According to the utility model discloses air conditioner, include: the air conditioner comprises a machine shell, wherein an air outlet is formed in the machine shell; a heat exchanger disposed inside the cabinet; the heat exchange fan is arranged inside the shell, airflow outside the shell is introduced into the shell through the operation of the heat exchange fan, the heat exchange fan exchanges heat through the heat exchanger to form heat exchange airflow, the heat exchange airflow is driven by the operation of the heat exchange fan to be output outwards through the air outlet, and the heat exchange fan comprises: the air duct piece is communicated with the heat exchanger at one end and corresponds to the air outlet at the other end, and comprises an air duct main body and a volute tongue, and the volute tongue and the air duct main body are arranged at intervals; the fan piece is arranged in the air channel piece and is arranged at intervals with the volute tongue; and the clearance adjusting device is arranged on the air duct piece and is in transmission fit with the volute tongue so as to adjust the size of the clearance between the volute tongue and the fan piece.

From this, through making volute tongue and wind channel main part interval setting, make fan spare and volute tongue interval setting to make clearance adjustment device and volute tongue transmission cooperation, clearance adjustment device can adjust the clearance size between volute tongue and the fan spare like this, realizes the regulation to the wind channel wind pressure, makes its and the operational mode phase-match of air conditioner, thereby promotes the stationarity of air conditioner operation, can change the air supply effect, promotes user's use and experiences.

In some examples of the invention, the clearance adjustment device includes a drive assembly, the drive assembly is in drive connection with the volute tongue, the drive assembly drives the volute tongue to rotate and displace.

In some examples of the present invention, the driving assembly includes a driving motor and an eccentric wheel, the driving motor cooperates with the eccentric wheel in a transmission manner, the eccentric wheel cooperates with the worm tongue in a transmission manner, the driving motor drives the eccentric wheel to rotate, and the eccentric wheel drives the worm tongue to rotate and displace.

In some examples of the present invention, a rotation groove is provided in the worm tongue, and the eccentric wheel is rotatably provided in the rotation groove.

In some examples of the invention, the eccentric wheel is circular, and the rotation groove is oval or racetrack shaped.

The utility model discloses an in some examples, clearance adjustment device still includes the motor fixing base, the motor fixing base set up in the wind channel main part, the motor fixing base is provided with the holding tank, driving motor set up in the holding tank.

In some examples of the present invention, the motor fixing base is provided with a first through hole, the driving motor is provided with a second through hole, and the first through hole corresponds to the second through hole and is fixed by a first fastener.

The utility model discloses an in some examples, be provided with first location portion on the motor fixing base, the last second location portion that is provided with of driving motor, first location portion with one in the second location portion is protruding for the location, and another is the locating hole, the location protruding with locating hole location fit.

In some examples of the present invention, the air duct main body is provided with a third through hole, the motor fixing base is provided with a fourth through hole, and the third through hole corresponds to the fourth through hole and is connected to the fourth through a second fastening member.

The utility model discloses an in some examples, be provided with first joint portion on the motor fixing base, be provided with second joint portion in the wind channel main part, first joint portion with one in the second joint portion is the buckle, and another is the draw-in groove, the buckle with the cooperation of draw-in groove joint.

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

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a partial schematic view of an air conditioner according to an embodiment of the present invention;

fig. 2 is a partial schematic view of another perspective of an air conditioner according to an embodiment of the present invention;

fig. 3 is a partial sectional view of an air conditioner according to an embodiment of the present invention;

fig. 4 is a partial exploded view of an air conditioner according to an embodiment of the present invention;

fig. 5 is a schematic view of a duct body according to an embodiment of the present invention;

FIG. 6 is a schematic view of region A in FIG. 5;

fig. 7 is a schematic view of a volute tongue according to an embodiment of the present invention;

fig. 8 is a schematic view of a gap adjustment apparatus according to an embodiment of the present invention;

fig. 9 is an exploded view of a gap adjustment apparatus according to an embodiment of the present invention;

fig. 10 is a schematic view of a worm tongue and an eccentric according to an embodiment of the present invention in one state;

fig. 11 is a schematic view of the volute tongue and the eccentric wheel in another state according to the embodiment of the present invention.

Reference numerals:

100. an air conditioner;

10. a heat exchanger;

20. a heat exchange fan;

21. an air duct member; 211. an air duct main body; 2111. a third perforation; 2112. a second clamping part; 212. a volute tongue; 2121. a rotating groove;

22. a fan member;

23. a gap adjusting device; 231. a drive assembly; 2311. a drive motor; 23111. a second perforation; 23112. a second positioning portion; 2312. an eccentric wheel; 232. a motor fixing seat; 2320. accommodating grooves; 2321. a first perforation; 2322. a first positioning portion; 2323. a fourth perforation; 2324. a first clamping part; 233. a first fastener; 234. a second fastener.

Detailed Description

Embodiments of the present invention are described in detail below, and the embodiments described with reference to the drawings are exemplary.

An air conditioner 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 11.

As shown in fig. 1 to 4, the air conditioner 100 according to the present invention may mainly include: casing (not shown in the figure), heat exchanger 10 and heat transfer fan 20, wherein, heat exchanger 10 and heat transfer fan 20 all set up in the casing, and the casing can play the guard action to heat exchanger 10 and heat transfer fan 20, prevents that external foreign matter from corroding to and the striking of external force leads to heat exchanger 10 and heat transfer fan 20's damage, can promote the structural reliability of heat exchanger 10 and heat transfer fan 20 like this, can promote the structural reliability of air conditioner 100.

Further, the casing is provided with an air outlet, air flow outside the casing can be introduced into the casing through operation of the heat exchange fan 20, heat exchange is carried out through the heat exchanger 10 to form heat exchange air flow, and the heat exchange air flow is driven by operation of the heat exchange fan 20 to be output outwards through the air outlet, so that the air conditioner 100 can convey air with proper temperature outwards, the indoor temperature can be adjusted, and normal operation of the air conditioner 100 is guaranteed.

Specifically, the air conditioner 100 of the present application cooperates with an outdoor unit of the air conditioner 100, wherein the heat exchanger 10 of the air conditioner 100 may be an evaporator or a condenser, and the heat exchanger 10 of the outdoor unit of the air conditioner 100 is a condenser or an evaporator, and the air conditioner 100 performs a refrigeration cycle of the air conditioner 100 by using a compressor, an expansion valve, a condenser 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 100 can adjust the temperature of the indoor space throughout the cycle. Further, the heat exchange fan 20 in the air conditioner 100 of the present application may accelerate the flow velocity of the wind flowing through the heat exchanger 10, so that the heat exchange efficiency of the heat exchanger 10 may be improved.

As shown in fig. 1 to fig. 11, the heat exchange fan 20 may mainly include: the air duct piece 21, the fan piece 22 and the gap adjusting device 23, wherein one end of the air duct piece 21 is correspondingly communicated with the heat exchanger 10, the other end of the air duct piece corresponds to the air outlet, the air duct piece 21 may mainly include an air duct main body 211 and a volute tongue 212, the volute tongue 212 and the air duct main body 211 are arranged at an interval, the fan piece 22 is arranged in the air duct piece 21 and is arranged at an interval with the volute tongue 212, and the gap adjusting device 23 is arranged in the air duct piece 21 and is in transmission fit with the volute tongue 212 to adjust the gap between the volute tongue 212 and the fan piece 22.

Specifically, one end of the air duct 21 is correspondingly communicated with the heat exchanger 10, the other end of the air duct 21 corresponds to the air outlet, and the fan 22 is disposed in the air duct 21, so that the external air can enter the casing under the action of the fan 22, then flows through the heat exchanger 10 and exchanges heat with the heat exchanger 10 to form heat exchange airflow, the heat exchange airflow is introduced into the air duct main body 211 from one end of the air duct 21 through the operation of the fan 22, the air duct main body 211 can limit the moving path of the heat exchange airflow, so that the heat exchange airflow is output to the air outlet from the other end of the air duct 21, and the air outlet conveys air with appropriate temperature to the room, thereby realizing the regulation effect on the indoor temperature and ensuring the normal operation of the air conditioner 100.

Further, considering that the air conditioner 100 has different operation modes, the rotation speeds of the fan 22 are different in the different operation modes, and the wind pressure and the wind field in the air duct 21 are also different, the volute tongue 212 and the air duct main body 211 are arranged at an interval, the fan 22 and the volute tongue 212 are arranged at an interval, and the gap adjusting device 23 is arranged in the air duct 21, so that the gap adjusting device 23 is in transmission fit with the volute tongue 212, and thus the gap adjusting device 23 can drive the volute tongue 212 to move, and adjust the gap between the volute tongue 212 and the fan 22, thereby adjusting the air duct pressure difference.

When the fan 22 runs at high speed, the gap between the volute tongue 212 and the fan 22 can be enlarged through the gap adjusting device 23, so that the wind field is smooth, the wind noise is reduced, when the fan 22 runs at low speed, the gap between the volute tongue 212 can be increased or reduced through the gap adjusting device 23, the wind field and the wind pressure are balanced, and the stable running of the fan 22 is ensured.

Therefore, the gap between the volute tongue 212 and the fan piece 22 can be adjusted according to different operation modes of the air conditioner 100, the air duct pressure difference is adjusted, and the air duct pressure difference is matched with the operation modes of the air conditioner 100, so that the operation stability of the air conditioner 100 can be improved, the air supply effect can be changed, remote air supply, no-wind-sense air supply and the like can be set, the use requirements of users in different scenes can be met, and the use experience of the users in different scenes can be improved. In addition, the air conditioner 100 can adjust the size of the gap between the volute tongue 212 and the fan piece 22 according to the condensation working condition, the wind resistance can be adjusted, condensation at the air outlet when the air conditioner 100 operates is reduced, and the use experience of a user can be further improved.

From this, through making spiral tongue 212 and wind channel main part 211 interval setting, make fan spare 22 and spiral tongue 212 interval setting to make clearance adjustment device 23 and spiral tongue 212 transmission fit, clearance adjustment device 23 can adjust the clearance size between spiral tongue 212 and the fan spare 22 like this, realize the regulation to the wind channel wind pressure, make its and air conditioner 100's operational mode phase-match, thereby promote the stationarity of air conditioner 100 operation, can change the air supply effect, promote user's use experience.

As shown in fig. 4 and fig. 7 to 9, the gap adjusting device 23 may include a driving assembly 231, the driving assembly 231 is in transmission connection with the volute tongue 212, and the driving assembly 231 drives the volute tongue 212 to rotate and displace. Specifically, the driving assembly 231 is in transmission connection with the volute tongue 212, so that the driving assembly 231 can transmit power to the volute tongue 212 to drive the volute tongue 212 to rotate and displace, and the size of the gap between the volute tongue 212 and the fan 22 can be adjusted, so that the transmission fit between the gap adjusting device 23 and the volute tongue 212 can be simpler and more reliable, and the movement of the volute tongue 212 can be more stable and controllable.

Further, as shown in fig. 4 and fig. 7-11, the driving assembly 231 may mainly include a driving motor 2311 and an eccentric 2312, the driving motor 2311 is in driving fit with the eccentric 2312, the eccentric 2312 is in driving fit with the volute tongue 212, the driving motor 2311 drives the eccentric 2312 to rotate, and the eccentric 2312 drives the volute tongue 212 to rotate and displace. Specifically, the driving motor 2311 and the eccentric wheel 2312 can be in transmission fit, so that the eccentric wheel 2312 and the volute tongue 212 are in transmission fit, the driving motor 2311 can drive the eccentric wheel 2312 to rotate, and then the eccentric wheel 2312 can drive the volute tongue 212 to rotate and displace, so that the rotation and displacement of the volute tongue 212 can be realized more simply, the occupied space of the driving assembly 231 can be reduced, the driving assembly 231 can be conveniently installed in the air duct piece 21, and the structure of the air conditioner 100 can be favorably compacted.

Referring to fig. 7 to 11, a rotation groove 2121 is formed in the volute tongue 212, and an eccentric 2312 is rotatably disposed in the rotation groove 2121. Specifically, a rotation groove 2121 may be provided in the volute tongue 212, and the eccentric 2312 may be rotatably provided in the rotation groove 2121, so that, on one hand, the structural compactness between the gap adjusting device 23 and the volute tongue 212 may be further improved, and on the other hand, the eccentric 2312 may rotate in the rotation groove 2121 only by making the driving motor 2311 drive the eccentric 2312 to rotate, so that the eccentric 2312 may contact with the rotation groove 2121 to drive the volute tongue 212 to rotate and displace, so that the rotation and displacement of the volute tongue 212 may be more simply implemented, and the structural design of the air conditioner 100 may be further simplified.

Further, as shown in fig. 7-11, the eccentric 2312 has a circular shape and the rotational groove 2121 has an elliptical or racetrack shape. Specifically, the eccentric wheel 2312 may be configured to be circular, and the rotational groove 2121 may be configured to be oval or racetrack-shaped, so that the engagement between the eccentric wheel 2312 and the rotational groove 2121 may be more stable and smooth, the movement of the volute tongue 212 may be more stable, and the reliability of the air conditioner 100 may be further improved.

As shown in fig. 2, 8 and 9, the gap adjusting device 23 may further include a motor fixing seat 232, the motor fixing seat 232 is disposed on the air duct main body 211, the motor fixing seat 232 is provided with an accommodating groove 2320, and the driving motor 2311 is disposed in the accommodating groove 2320. Specifically, can set up motor fixing base 232 on wind channel main part 211, and set up holding tank 2320 on motor fixing base 232, driving motor 2311 can correspond in setting up holding tank 2320 like this, thereby not only can realize motor fixing base 232 and realize being connected between driving motor 2311 and the wind channel main part 211, can promote stability and the reliability that driving motor 2311 installation set up, and can pass through the design of holding tank 2320, play the effect that the protection was established to the cover to driving motor 2311, can promote driving motor 2311's structural reliability.

Referring to fig. 8 and 9, the motor fixing base 232 is provided with a first through hole 2321, the driving motor 2311 is provided with a second through hole 23111, and the first through hole 2321 and the second through hole 23111 correspond to each other and are fixedly connected through the first fastening member 233. Specifically, through setting up first perforation 2321 on motor fixing base 232, set up second perforation 23111 on driving motor 2311, can guarantee like this that motor fixing base 232 and driving motor 2311's the reliable prerequisite of structural strength, be convenient for first perforation 2321 and the processing of second perforation 23111 are seted up, and through setting up first perforation 2321 and second perforation 23111 correspondingly, only need wear to establish first perforation 2321 and second perforation 23111 and carry out the fastening with first fastener 233 like this, just can realize the connection between driving motor 2311 and the motor fixing base 232 and fix, thereby can make the connection between driving motor 2311 and the motor fixing base 232 fix more simple and convenient, can make the connection between driving motor 2311 and the motor fixing base 232 fix more reliable and more stable.

As shown in fig. 8 and 9, the motor fixing base 232 is provided with a first positioning portion 2322, the driving motor 2311 is provided with a second positioning portion 23112, one of the first positioning portion 2322 and the second positioning portion 23112 is a positioning protrusion, the other is a positioning hole, and the positioning protrusion is in positioning fit with the positioning hole. Specifically, by arranging the first positioning portion 2322 on the motor fixing seat 232 and the second positioning portion 23112 on the driving motor 2311, when the driving motor 2311 is arranged on the motor fixing seat 232, the first positioning portion 2322 and the second positioning portion 23112 can be correspondingly positioned and matched first, so that the driving motor 2311 is positioned at a correct installation position relative to the motor fixing seat 232, which can prevent the problem of installation position error of the driving motor 2311 relative to the motor fixing seat 232 and can avoid the displacement of the driving motor 2311 relative to the motor fixing seat 232 in the assembling process, thereby improving the assembling efficiency between the driving motor 2311 and the motor fixing seat 232.

Further, one of the first positioning portion 2322 and the second positioning portion 23112 may be configured as a positioning protrusion, and the other of the first positioning portion 2322 and the second positioning portion 23112 may be configured as a positioning hole, so that only the positioning protrusion needs to correspondingly extend into the positioning hole, and positioning cooperation between the positioning protrusion and the positioning hole can be achieved, that is: positioning engagement between the first positioning portions 2322 and the second positioning portions 23112 can be achieved, so that not only can the speed and accuracy of positioning engagement between the first positioning portions 2322 and the second positioning portions 23112 be improved, but also the stability and reliability of positioning engagement between the first positioning portions 2322 and the second positioning portions 23112 can be improved.

Referring to fig. 2 and fig. 6 to 9, a third through hole 2111 is provided on the air duct main body 211, a fourth through hole 2323 is provided on the motor fixing seat 232, and the third through hole 2111 and the fourth through hole 2323 correspond to each other and are connected by a second fastening member 234. Specifically, through setting up third perforation 2111 on wind channel main part 211, set up fourth perforation 2323 on motor fixing base 232, can guarantee the reliable prerequisite of structural strength of wind channel main part 211 and motor fixing base 232 like this, be convenient for the processing of third perforation 2111 and fourth perforation 2323 to set up, and through setting up third perforation 2111 and fourth perforation 2323 correspondingly, only need wear to establish third perforation 2111 and fourth perforation 2323 and carry out the fastening with second fastener 234 like this, just can realize the connection between wind channel main part 211 and the motor fixing base 232 and fix, thereby can be fixed simple and convenient more with the connection between wind channel main part 211 and the motor fixing base 232, can make the connection between wind channel main part 211 and the motor fixing base 232 fix more reliable and more stable.

As shown in fig. 2 and fig. 6 to 9, a first clamping portion 2324 is disposed on the motor fixing base 232, a second clamping portion 2112 is disposed on the air duct main body 211, one of the first clamping portion 2324 and the second clamping portion 2112 is a buckle, and the other is a clamping groove, and the buckle is clamped and matched with the clamping groove. Specifically, by setting the first clamping portion 2324 on the motor fixing seat 232 and the second clamping portion 2112 on the air duct main body 211, when the motor fixing seat 232 is set on the air duct main body 211, only the first clamping portion 2324 and the second clamping portion 2112 need to be clamped and matched correspondingly, so that the connection between the motor fixing seat 232 and the air duct main body 211 can be realized, the connection between the motor fixing seat 232 and the air duct main body 211 can be set more simply and conveniently, and the assembly efficiency of the air conditioner 100 can be improved.

Further, one of the first clamping portion 2324 and the second clamping portion 2112 may be set as a buckle, and the other of the first clamping portion 2324 and the second clamping portion 2112 is set as a slot, so that only the buckle needs to be correspondingly extended into the slot, and the positioning and the matching between the buckle and the slot can be achieved, that is: the clamping fit between the first clamping portion 2324 and the second clamping portion 2112 can be realized, so that not only the speed and accuracy of the clamping fit between the first clamping portion 2324 and the second clamping portion 2112 can be improved, but also the stability and reliability of the clamping fit between the first clamping portion 2324 and the second clamping portion 2112 can be improved.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for 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 thus, should not be construed as limiting the present invention.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "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 invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air conditioner, comprising:

the air conditioner comprises a machine shell, wherein an air outlet is formed in the machine shell;

a heat exchanger disposed inside the cabinet;

the heat exchange fan is arranged inside the casing, airflow outside the casing is introduced into the casing through the operation of the heat exchange fan, heat exchange airflow is formed through heat exchange of the heat exchanger, the heat exchange airflow is driven by the operation of the heat exchange fan to be output outwards through the air outlet, and the heat exchange fan comprises:

the air duct piece is communicated with the heat exchanger at one end and corresponds to the air outlet at the other end, and comprises an air duct main body and a volute tongue, and the volute tongue and the air duct main body are arranged at intervals;

the fan piece is arranged in the air channel piece and is arranged at an interval with the volute tongue;

and the clearance adjusting device is arranged on the air duct piece and is in transmission fit with the volute tongue so as to adjust the size of the clearance between the volute tongue and the fan piece.

2. The air conditioner of claim 1, wherein the gap adjustment device comprises a drive assembly in driving connection with the volute tongue, the drive assembly driving the volute tongue to rotate and displace.

3. The air conditioner according to claim 2, wherein the driving assembly comprises a driving motor and an eccentric wheel, the driving motor is in driving fit with the eccentric wheel, the eccentric wheel is in driving fit with the volute tongue, the driving motor drives the eccentric wheel to rotate, and the eccentric wheel drives the volute tongue to rotate and displace.

4. The air conditioner as claimed in claim 3, wherein the volute tongue is provided therein with a rotation groove, and the eccentric wheel is rotatably provided in the rotation groove.

5. The air conditioner according to claim 4, wherein the eccentric wheel has a circular shape, and the rotating groove has an elliptical shape or a racetrack shape.

6. The air conditioner according to claim 3, wherein the gap adjusting device further comprises a motor fixing seat disposed on the air duct main body, the motor fixing seat being provided with a receiving groove, the driving motor being disposed in the receiving groove.

7. The air conditioner as claimed in claim 6, wherein the motor fixing base is provided with a first through hole, the driving motor is provided with a second through hole, and the first through hole and the second through hole correspond to each other and are fixedly connected by a first fastening member.

8. The air conditioner as claimed in claim 6, wherein the motor fixing base is provided with a first positioning portion, the driving motor is provided with a second positioning portion, one of the first positioning portion and the second positioning portion is a positioning protrusion, the other one of the first positioning portion and the second positioning portion is a positioning hole, and the positioning protrusion is in positioning fit with the positioning hole.

9. The air conditioner as claimed in claim 6, wherein a third through hole is provided on the air duct main body, a fourth through hole is provided on the motor fixing seat, and the third through hole and the fourth through hole correspond to each other and are connected by a second fastening member.

10. The air conditioner according to claim 6, wherein a first clamping portion is arranged on the motor fixing seat, a second clamping portion is arranged on the air duct main body, one of the first clamping portion and the second clamping portion is a buckle, the other one of the first clamping portion and the second clamping portion is a clamping groove, and the buckle is in clamping fit with the clamping groove.