CN219774417U - air conditioner - Google Patents

Abstract

The utility model provides an air conditioner, which comprises a shell, wherein a fan mechanism and a lifting mechanism are arranged in the shell, the fan mechanism is provided with a working position and a maintenance position, the fan mechanism is positioned in the shell and is positioned at the working position, the fan mechanism is positioned outside the shell and is positioned at the maintenance position, and the lifting mechanism is used for driving the fan mechanism to switch between the working position and the maintenance position. According to the utility model, when the fan mechanism is damaged or fails and needs to be maintained, the lifting mechanism can be utilized to drive the fan mechanism to move upwards to the outside of the air conditioner shell, and after the maintenance is finished, the lifting mechanism is utilized to drive the fan mechanism to return downwards to the original working position, so that the whole maintenance process does not need to disassemble and assemble parts, thereby facilitating the maintenance, saving the maintenance time and improving the maintenance efficiency.

Description

Air conditioner

Technical Field

The utility model belongs to the technical field of air conditioners, and particularly relates to an air conditioner.

Background

With the development of the times, the living standard of people is improved, the air conditioner becomes a necessity for people to live, and the household and commercial air conditioner is used more frequently, so that the loss of parts in the air conditioner is increased. At present, once a fan mechanism of an air conditioner is damaged or fails, maintenance is difficult, and a top cover, a net cover, a guide ring, fan blades and a fan motor are required to be assembled and disassembled in sequence, so that maintenance manpower and maintenance time are consumed greatly, and maintenance efficiency is low, resources are wasted, time is wasted and the like.

Disclosure of Invention

Therefore, the utility model provides the air conditioner, which can solve the problems of high maintenance time consumption and low maintenance efficiency caused by the fact that more parts are required to be disassembled and assembled in the maintenance process once a fan mechanism is damaged or fails.

In order to solve the above problems, the present utility model provides an air conditioner comprising: the fan mechanism is positioned in the shell and is positioned at the working position, the fan mechanism is positioned outside the shell and is positioned at the maintenance position, and the lifting mechanism is used for driving the fan mechanism to switch between the working position and the maintenance position.

In some embodiments, the lifting mechanism comprises a driving part and a transmission assembly, wherein the driving part is installed on the shell, and the driving part drives the fan mechanism to switch between the working position and the maintenance position through the transmission assembly.

In some embodiments, the driving component has a rotatable output shaft, the transmission assembly includes a screw and a nut sleeved on the screw, the screw is connected with the output shaft, the nut is connected with the fan mechanism, and when the driving component drives the screw to rotate, the nut can move along the extending direction of the screw.

In some embodiments, the driving component has a rotatable output shaft, the transmission assembly includes an eccentric gear, a driven gear, and a connecting shaft, the eccentric gear is sleeved on the output shaft, the connecting shaft is connected with the fan mechanism, the driven gear is rotatably sleeved on the connecting shaft, and the driven gear is meshed with the eccentric gear.

In some embodiments, the transmission assembly further includes a first fixed structure mounted on the housing, the eccentric gear and the driven gear are both between the first fixed structure and the fan mechanism, the output shaft rotatably penetrates through the first fixed structure, a limiting groove is configured on the first fixed structure, the connecting shaft has a part of section in the limiting groove, and the limiting groove is used for limiting movement of the connecting shaft, so that the connecting shaft can only slide along an extending direction of the limiting groove.

In some embodiments, the drive member has a rotatable output shaft, and the transmission assembly includes a crank and a link, the crank being coupled to the output shaft, a first end of the link being hinged to the fan mechanism, and a second end of the link being hinged to the crank.

In some embodiments, the transmission assembly further comprises a second fixing structure, the second fixing structure is mounted on the housing, the output shaft rotatably penetrates through the second fixing structure, a sliding rail is mounted on the second fixing structure, the sliding rail, the crank and the connecting rod are all located between the second fixing structure and the fan mechanism, a groove is formed in the sliding rail, a moving block is arranged in the groove and matched with the groove, the moving block can slide along the groove, and the first end of the connecting rod is hinged to the moving block and the fan mechanism respectively.

In some embodiments, the drive member has a rotatable output shaft, the transmission assembly includes a cam and a follower, the cam is sleeved on the output shaft, the follower is connected with the fan mechanism, and one end of the follower is abutted on the peripheral wall of the cam.

In some embodiments, the transmission assembly further includes a third fixed structure, the third fixed structure is mounted on the housing, the output shaft rotatably penetrates through the third fixed structure, a limiting member is mounted on the third fixed structure, the limiting member, the cam and the driven member are all located between the third fixed structure and the fan mechanism, a channel penetrating through the limiting member is formed in the limiting member, and the driven member penetrates through the channel.

In some embodiments, the lifting mechanism further comprises a guide rail mounted on the housing, the guide rail is provided with a sliding groove extending along the extending direction of the guide rail, the fan mechanism comprises a fan and a bracket assembly, the fan is mounted on the bracket assembly, the bracket assembly is connected with the transmission assembly, the bracket assembly is provided with a part section in the sliding groove, and the bracket assembly can slide along the sliding groove.

In some embodiments, the bracket assembly includes a bracket and a slider, the fan and the slider are respectively mounted on the bracket, the slider is matched with the chute, and the slider is positioned in the chute and can slide along the chute.

In some embodiments, a controller and a rotation speed sensor are further arranged in the shell, the rotation speed sensor is in control connection with the controller, the rotation speed sensor is used for detecting the rotation speed of the fan, and the controller controls whether the air conditioner is powered off or not according to the rotation speed detected by the rotation speed sensor.

In some embodiments, a buzzer is further disposed in the housing, and the buzzer is in control connection with the controller.

The utility model provides an air conditioner, when a fan mechanism is damaged or fails and needs to be maintained, a lifting mechanism can be utilized to drive the fan mechanism to move upwards to the outside of a shell of the air conditioner, after maintenance is finished, the lifting mechanism is utilized to drive the fan mechanism to return downwards to an original working position, so that the whole maintenance process does not need to disassemble and assemble parts, thereby facilitating maintenance, saving maintenance time and improving maintenance efficiency.

Drawings

Fig. 1 is an exploded view of an air conditioner according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of a fan mechanism of an air conditioner in an operating position according to a first embodiment of the present utility model;

FIG. 3 is a schematic view of a fan mechanism of an air conditioner in a maintenance position according to a first embodiment of the present utility model;

fig. 4 is a schematic diagram of a transmission assembly of an air conditioner according to a second embodiment of the present utility model;

fig. 5 is a schematic view of a transmission assembly of an air conditioner according to a third embodiment of the present utility model;

fig. 6 is a schematic view of a transmission assembly of an air conditioner according to a fourth embodiment of the present utility model;

fig. 7 is a front view of an air conditioner according to an embodiment of the present utility model;

fig. 8 is a schematic view of a button assembly of an air conditioner according to an embodiment of the present utility model.

The reference numerals are expressed as:

1. a housing; 11. a chassis; 12. an outer cover; 13. a top cover; 14. a side plate; 2. a fan mechanism; 21. a blower; 22. a bracket; 23. a slide block; 24. a cover plate; 3. a lifting mechanism; 31. a driving part; 32. a screw rod; 33. a nut; 34. an eccentric gear; 35. a driven gear; 36. a connecting shaft; 37. a first fixed structure; 38. a crank; 39. a connecting rod; 40. a second fixing structure; 41. a slide rail; 42. a moving block; 43. a cam; 44. a follower; 45. a third fixing structure; 46. a limiting piece; 47. a guide rail; 4. a controller; 5. a rotation speed sensor; 6. a buzzer; 7. a button assembly; 71. a rising start button; 72. a descent start button; 8. a switch cover plate; 9. an electrical box; 10. and a limit groove.

Detailed Description

Referring to fig. 1 to 8 in combination, according to an embodiment of the present utility model, there is provided an air conditioner including: the fan mechanism 2 and the lifting mechanism 3 are arranged in the shell 1, the fan mechanism 2 is provided with a working position and a maintenance position, the fan mechanism 2 is positioned in the shell 1 and is positioned at the working position, the fan mechanism 2 is positioned outside the shell 1 and is positioned at the maintenance position, and the lifting mechanism 3 is used for driving the fan mechanism 2 to switch between the working position and the maintenance position. In this technical scheme, when fan mechanism 2 breaks down or breaks down and need maintain, available elevating system 3 drives fan mechanism 2 upwards and moves to the outside of casing 1, after the maintenance, reuse elevating system 3 drive fan mechanism 2 downwards just to original working position can, this makes whole maintenance process need not dismouting spare part to convenient maintenance saves maintenance time, improves maintenance efficiency. The housing 1 is formed by enclosing a chassis 11, an outer cover 12, a top cover 13 and a side plate 14.

Judgment as to whether the blower mechanism 2 is damaged or fails: the fan mechanism 2 comprises a fan 21, a controller 4 and a rotation speed sensor 5 are further arranged in the shell 1, the rotation speed sensor 5 is in control connection with the controller 4, the rotation speed sensor 5 is used for detecting the rotation speed of the fan 21, and the controller 4 controls the air conditioner to be powered off according to the rotation speed detected by the rotation speed sensor 5. When the air conditioner is in operation, if the rotation speed sensor 5 detects that the rotation speed of the fan 21 is abnormal, for example, the rotation speed of the fan 21 is too high or too low, which represents that the fan 21 is damaged or fails, the controller 4 controls the main limit switch to cut off the power supply of the air conditioner, and the air conditioner stops to prevent the failure condition of the fan 21 from being aggravated. In the prior art, whether the fan 21 of the air conditioner is damaged or fails is not clearly judged, and a safety accident is caused when the fan 21 fails seriously, but the utility model can judge whether the fan 21 is damaged or fails in time by additionally arranging the rotation speed sensor 5 and the controller 4, so that the safety accident caused by that the fan 21 is damaged or fails and is not detected in time can not occur. Because the abnormal rotational speeds of the fans 21 of different models are different, the numerical range of the abnormal rotational speeds of the fans cannot be provided, and the specific determination can be carried out according to the specific model of the fan 21 in practice. Preferably, the controller 4 and the main limit switch are arranged beside the electrical box 9 in the shell 1, so that the control can be conveniently performed.

Referring to fig. 1, a buzzer 6 is further disposed in the casing 1, the buzzer 6 is mounted on a side plate 14 of the casing 1, and the buzzer 6 is in control connection with the controller 4. When the rotation speed sensor 5 detects that the rotation speed of the fan 21 is abnormal, the buzzer 6 is activated to give an alarm so as to remind a user of damage to the fan 21.

Specifically, the lifting mechanism 3 includes a driving part 31 and a transmission assembly, the driving part 31 is mounted on the housing 1, and the driving part 31 drives the fan mechanism 2 to switch between a working position and a maintenance position through the transmission assembly. The lifting mechanism 3 adopts a design mode of a driving component 31 and a transmission component, so that the structure of the lifting mechanism 3 is changed more and more, and the lifting track of the fan mechanism 2 can be well restrained.

Referring to fig. 1 in combination, the lifting mechanism 3 further includes a guide rail 47 mounted on the housing 1, the guide rail 47 is configured with a chute extending along the extending direction of the guide rail 47, the blower mechanism 2 further includes a bracket assembly on which the blower 21 is mounted, the bracket assembly is connected with the transmission assembly, the bracket assembly has a portion in the chute, and the bracket assembly is capable of sliding along the chute. The guide rail 47 and the bracket component cooperate to restrain and guide the movement of the fan mechanism 2, so that the fan mechanism 2 can only move towards one direction and the movement is stable. Preferably, the guide rail 47 and the driving part 31 are both fixed to the chassis 11 of the housing 1 by screws, and the guide rail 47 extends in the vertical direction.

In this embodiment, the guide rails 47 are two, the bracket assembly includes a bracket 22 and two sliding blocks 23, the fan 21 is mounted on the bracket 22, the two sliding blocks 23 are respectively mounted on two sides of the bracket 22, the sliding blocks 23 are matched with the sliding grooves, and the two sliding blocks 23 are respectively located in the two sliding grooves and can slide along the sliding grooves. The cooperation of the slide 23 and the guide rail 47 can further improve the stability of the fan mechanism 2 in the moving process. The fan mechanism 2 further comprises a cover plate 24, the cover plate 24 is fixed on the top of the support 22, an opening through which the fan mechanism 2 can enter and exit is formed in the top cover 13, the cover plate 24 is matched with the opening, and when the fan mechanism 2 is positioned in the shell 1, namely, the fan mechanism 2 is positioned in a working position, the cover plate 24 is positioned at the opening exactly and seals the opening so as to prevent sundries or rainwater from entering.

Referring to fig. 1 in combination, as an embodiment, the driving part 31 has a rotatable output shaft, and the transmission assembly includes a screw rod 32 and a nut 33 sleeved on the screw rod 32, the screw rod 32 is connected to the output shaft, and the fan mechanism 2 is fixed on the nut 33 by a screw. When the driving part 31 drives the screw rod 32 to rotate, the sliding block 23 of the fan mechanism 2 is positioned in the sliding groove of the guide rail 47, and the fan mechanism 2 is further fixed on the nut 33, so that the nut 33 cannot synchronously rotate along with the screw rod 32, but can move along the extending direction of the screw rod 32, and the nut 33 drives the fan mechanism 2 to lift. Wherein, the screw rod 32 and the nut 33 are matched and driven to have self-locking property, so that the fan mechanism 2 can stably stay at a preset position after reaching the preset position. The driving part 31 can be a motor or a rocker, and if the driving part 31 is a motor, the fan mechanism 2 can be automatically lifted; if the driving member 31 is a rocker, the blower mechanism 2 can be manually lifted.

As shown in fig. 4, as a second embodiment, the transmission assembly includes an eccentric gear 34, a driven gear 35, a connecting shaft 36 and a first fixing structure 37, the first fixing structure 37 is mounted on the housing 1, an output shaft of the driving part 31 rotatably penetrates through the first fixing structure 37, the eccentric gear 34 is sleeved on the output shaft, and the eccentric gear 34 is located between the first fixing structure and the fan mechanism 2; the first fixing structure 37 is provided with a limit groove 10, the connecting shaft 36 is connected with the fan mechanism 2, the connecting shaft 36 is provided with a part section which is positioned in the limit groove 10, the driven gear 35 is rotatably sleeved on the connecting shaft 36, the driven gear 35 is positioned between the first fixing structure and the fan mechanism 2, and the driven gear 35 is meshed with the eccentric gear 34. When the driving part 31 drives the eccentric gear 34 to rotate, the eccentric gear 34 drives the driven gear 35 to rotate on the connecting shaft 36, and the driven gear 35 is driven to lift due to the change of the height position of the eccentric gear 34 in the rotation process, and then the driven gear 35 drives the connecting shaft 36 to lift, so that the lifting of the fan mechanism 2 is finally realized. The limiting groove 10 is used for limiting the movement of the connecting shaft 36, so that the connecting shaft 36 can only slide along the extending direction of the limiting groove 10, namely slide in the vertical direction, and thus, when the eccentric gear 34 drives the driven gear 35 to rotate, the driven gear 35 can only move in the vertical direction but not move transversely except the rotation, and the stability of the fan mechanism 2 in the moving process is ensured. Meanwhile, the eccentric gear 34 and the driven gear 35 are matched for transmission, so that the fan mechanism 2 can stably stay at a preset position after reaching the preset position. Preferably, the first fixing structure 37 is a fixing plate, the first fixing structure 37 is vertically installed on the chassis 11 of the housing 1, the limiting groove 10 penetrates through the first fixing structure 37, and the connecting shaft 36 penetrates through the limiting groove 10.

As shown in fig. 5, as an embodiment three, the transmission assembly includes a crank 38, a connecting rod 39 and a second fixing structure 40, the second fixing structure 40 is mounted on the housing 1, an output shaft of the driving component 31 rotatably penetrates through the second fixing structure 40 and is connected with the crank 38, a sliding rail 41 is mounted on the second fixing structure 40, the sliding rail 41, the crank 38 and the connecting rod 39 are all located between the second fixing structure 40 and the fan mechanism 2, a groove is formed in the sliding rail 41, a moving block 42 is arranged in the groove, the moving block 42 is matched with the groove, the moving block 42 can slide along the groove, a first end of the connecting rod 39 is hinged with the moving block 42 and the fan mechanism 2 respectively, and a second end of the connecting rod 39 is hinged on the crank 38. When the driving part 31 drives the crank 38 to rotate, the crank 38 is hinged with the connecting rod 39, so that the crank 38 can prop against the connecting rod 39 to rise or pull the connecting rod 39 to descend, the connecting rod 39 can drive the moving block 42 to slide in the groove of the sliding rail 41 and drive the fan mechanism 2 to ascend and descend, and the second fixing structure 40, the sliding rail 41 and the moving block 42 enable the lifting of the connecting rod 39 to be more stable, so that the lifting of the fan mechanism 2 is more stable. Preferably, the second fixing structure 40 is a fixing plate, the second fixing structure 40 is vertically mounted on the chassis 11 of the housing 1, and the slide rail 41 is vertically mounted on the second fixing structure 40.

As shown in fig. 6, as a fourth embodiment, the transmission assembly includes a cam 43, a follower 44 and a third fixing structure 45, the third fixing structure 45 is mounted on the housing 1, the output shaft of the driving part 31 rotatably penetrates the second fixing structure 40, the cam 43 is sleeved on the output shaft, and the cam 43 is located between the third fixing structure 45 and the fan mechanism 2; the third fixing structure 45 is provided with a limiting piece 46, the limiting piece 46 is provided with a channel penetrating through the limiting piece 46, the driven piece 44 penetrates through the channel, the driven piece 44 is connected with the fan mechanism 2, one end of the driven piece 44 is abutted to the peripheral wall of the cam 43, and the limiting piece 46 and the driven piece 44 are located between the third fixing structure 45 and the fan mechanism 2. When the driving part 31 drives the cam 43 to rotate, the height position of the cam 43 is changed in the rotating process, and the follower 44 is always abutted against the outer peripheral wall of the cam 43, so that the follower 44 can lift along the channel of the limiting piece 46, and the lifting of the fan mechanism 2 is finally realized. The third fixing structure 45 and the limiting piece 46 enable the lifting of the driven piece 44 to be stable, and further enable the lifting of the fan mechanism 2 to be stable. Preferably, the third fixing structure 45 is a fixing plate, and the third fixing structure 45 is vertically installed on the chassis 11 of the housing 1.

The follower 44 includes a roller rotatably mounted at one end of the follower lever, and a follower lever, the roller abutting on the outer peripheral wall of the cam 43. When the driving part 31 rotates the cam 43, the roller rolls along the outer peripheral wall of the cam 43, so that the friction between the follower 44 and the cam 43 can be reduced, and the abrasion between the two parts can be reduced.

In this embodiment, the driving part 31 is a motor, the cover 12 of the housing 1 is provided with a switch cover plate 8, and the button assembly 7 can be seen after the switch cover plate 8 is uncovered, and the button assembly 7 includes a lifting start button 71 and a lowering start button 72. When the rising start button 71 is pressed by hand, the motor rotates forward and drives the fan mechanism 2 to rise through the transmission assembly, the fan mechanism 2 moves to the outside of the shell 1 from the opening of the top cover 13, when the fan mechanism 2 moves to the maintenance position, the top limit switch is triggered, the motor is powered off, and finally the fan mechanism 2 stays at the maintenance position for maintenance, as shown in fig. 3. After maintenance is finished, the descending start button 72 is pressed by hand, the motor reversely rotates and drives the fan mechanism 2 to descend through the transmission assembly, the fan mechanism 2 descends to the inside of the shell 1 from the opening of the top cover 13, when the fan mechanism 2 returns to the working position, the bottom limit switch is triggered, the motor is powered off, and finally the fan mechanism 2 stays at the working position, as shown in fig. 2. Wherein the operating position is the initial position of the fan mechanism 2.

It will be readily appreciated by those skilled in the art that the above advantageous ways can be freely combined and superimposed without conflict.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model. The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that modifications and variations can be made without departing from the technical principles of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.

Claims (13)

1. The utility model provides an air conditioner, its characterized in that, includes casing (1), be provided with fan mechanism (2) and elevating system (3) in casing (1), fan mechanism (2) have operating position and maintenance position, fan mechanism (2) are in casing (1) be operating position, fan mechanism (2) are in outside casing (1) be the maintenance position, elevating system (3) are used for driving fan mechanism (2) are in switch between operating position and the maintenance position.

2. An air conditioner according to claim 1, wherein the lifting mechanism (3) comprises a driving part (31) and a transmission assembly, the driving part (31) is mounted on the shell (1), and the driving part (31) drives the fan mechanism (2) to switch between the working position and the maintenance position through the transmission assembly.

3. An air conditioner according to claim 2, wherein the driving part (31) has a rotatable output shaft, the transmission assembly comprises a screw (32) and a nut (33) sleeved on the screw (32), the screw (32) is connected with the output shaft, the nut (33) is connected with the fan mechanism (2), and when the driving part (31) drives the screw (32) to rotate, the nut (33) can move along the extending direction of the screw (32).

4. An air conditioner according to claim 2, wherein the driving part (31) has a rotatable output shaft, the transmission assembly comprises an eccentric gear (34), a driven gear (35) and a connecting shaft (36), the eccentric gear (34) is sleeved on the output shaft, the connecting shaft (36) is connected with the fan mechanism (2), the driven gear (35) is rotatably sleeved on the connecting shaft (36), and the driven gear (35) is meshed with the eccentric gear (34).

5. The air conditioner according to claim 4, characterized in that the transmission assembly further comprises a first fixing structure (37), the first fixing structure (37) is mounted on the housing (1), the eccentric gear (34) and the driven gear (35) are located between the first fixing structure and the fan mechanism (2), the output shaft rotatably penetrates through the first fixing structure (37), a limiting groove (10) is formed in the first fixing structure (37), the connecting shaft (36) is provided with a part of the part, which is located in the limiting groove (10), and the limiting groove (10) is used for limiting the movement of the connecting shaft (36) so that the connecting shaft (36) can only slide along the extending direction of the limiting groove (10).

6. An air conditioner according to claim 2, wherein the drive member (31) has a rotatable output shaft, the transmission assembly comprising a crank (38) and a link (39), the crank (38) being connected to the output shaft, a first end of the link (39) being hinged to the fan mechanism (2), a second end of the link (39) being hinged to the crank (38).

7. The air conditioner according to claim 6, wherein the transmission assembly further comprises a second fixing structure (40), the second fixing structure (40) is mounted on the housing (1), the output shaft rotatably penetrates through the second fixing structure (40), a sliding rail (41) is mounted on the second fixing structure (40), the sliding rail (41), the crank (38) and the connecting rod (39) are all located between the second fixing structure (40) and the fan mechanism (2), a groove is formed in the sliding rail (41), a moving block (42) is arranged in the groove, the moving block (42) is matched with the groove, the moving block (42) can slide along the groove, and the first end of the connecting rod (39) is hinged with the moving block (42) and the fan mechanism (2) respectively.

8. An air conditioner according to claim 2, wherein the driving part (31) has a rotatable output shaft, the transmission assembly comprises a cam (43) and a follower (44), the cam (43) is sleeved on the output shaft, the follower (44) is connected with the fan mechanism (2), and one end of the follower (44) is abutted on the outer peripheral wall of the cam (43).

9. The air conditioner according to claim 8, wherein the transmission assembly further comprises a third fixing structure (45), the third fixing structure (45) is mounted on the housing (1), the output shaft rotatably penetrates through the third fixing structure (45), a limiting piece (46) is mounted on the third fixing structure (45), the limiting piece (46), the cam (43) and the follower (44) are all located between the third fixing structure (45) and the fan mechanism (2), a channel penetrating through the limiting piece (46) is formed on the limiting piece (46), and the follower (44) penetrates through the channel.

10. An air conditioner according to any one of claims 2 to 9, wherein the lifting mechanism (3) further comprises a guide rail (47) mounted on the housing (1), the guide rail (47) being configured with a chute, the blower mechanism (2) comprising a blower (21) and a bracket assembly, the blower (21) being mounted on the bracket assembly, the bracket assembly being connected to the transmission assembly, the bracket assembly having a portion within the chute, and the bracket assembly being slidable along the chute.

11. The air conditioner according to claim 10, wherein the bracket assembly comprises a bracket (22) and a slider (23), the blower (21) and the slider (23) are respectively mounted on the bracket (22), the slider (23) is matched with the sliding chute, and the slider (23) is positioned in the sliding chute and can slide along the sliding chute.

12. The air conditioner according to claim 10, wherein a controller (4) and a rotation speed sensor (5) are further arranged in the shell (1), the rotation speed sensor (5) is in control connection with the controller (4), the rotation speed sensor (5) is used for detecting the rotation speed of the fan (21), and the controller (4) controls whether the air conditioner is powered off according to the rotation speed detected by the rotation speed sensor (5).

13. The air conditioner according to claim 12, wherein a buzzer (6) is further arranged in the housing (1), and the buzzer (6) is in control connection with the controller (4).