Noise reduction air conditioner and noise reduction method thereof

Abstract

The invention belongs to the technical field of air conditioner noise reduction, and particularly relates to a noise reduction air conditioner and a noise reduction method.The noise reduction air conditioner comprises a shell, a compressor is arranged on one side of the inner bottom of the shell, and a noise reduction partition plate is arranged at the position, located on one side of the compressor, of the inner bottom of the shell; a mounting frame is arranged at the position, located on one side of the noise reduction partition plate, of the inner bottom of the shell, a mounting base is arranged on the outer wall of the mounting frame, a first mounting groove is formed in the top of the mounting base, and a motor is arranged above the mounting base. The motor can be subjected to all-directional damping and buffering in all directions, the buffering effect on the motor is improved, vibration force is prevented from being transmitted to the shell when the motor vibrates, noise is reduced, swinging force of an output shaft of the motor can be buffered, the rotating stability of a rotating shaft is improved, the working stability of fan blades is improved, and the service life of the fan blades is prolonged. And the fan blades are prevented from swinging, so that the noise is further reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioner noise reduction, and in particular relates to a noise reduction air conditioner and a noise reduction method thereof. Background Art

[0002] An air conditioner is a household appliance that is mainly used to adjust the temperature, humidity, air flow rate and air cleanliness of indoor air to provide people with a comfortable living or working environment. The outdoor unit of the air conditioner, also known as the outdoor unit, is an indispensable part of the air conditioning system. It is mainly responsible for the heat exchange in the air conditioning cooling (heating) process and the operation of core components such as the compressor. The outdoor unit of the air conditioner is mainly composed of a compressor, condenser, capillary tube, fan and other components.

[0003] Problems with existing technologies:

[0004] At present, the operation of the outdoor unit of the air conditioner is generally accompanied by a significant problem - noise. The motor is often placed on an independent bracket structure. When running, it will not only make noise due to vibration, but also drive the fan blades on the output shaft to swing. In addition, the connection point between the end of the fan blade and the motor output shaft is far away. When the airflow directly hits the end of the fan blade, it will cause the fan blade to vibrate more violently, thereby generating unnecessary noise interference. In addition, during the operation of the fan, the air is driven to flow through the grid, and the obstruction of the grid and the complexity of the air flow often lead to the formation of turbulence. This turbulence will cause irregular collisions between air molecules, thereby generating additional noise. Summary of the invention

[0005] The purpose of the present invention is to provide a noise reduction air conditioner and a noise reduction method thereof, which can perform all-round shock absorption and buffering on the motor in the front, back, left, right, up and down directions, thereby improving the buffering effect on the motor, avoiding the transmission of vibration force to the shell when the motor vibrates, reducing the generation of noise, and can also buffer the swinging force of the motor output shaft, thereby improving the stability of the rotation of the shaft, thereby improving the stability of the fan blade operation, avoiding the swinging of the fan blade, and further reducing the generation of noise.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A noise reduction air conditioner, comprising a shell, a compressor is arranged on one side of the inner bottom of the shell, a noise reduction baffle is arranged on the inner bottom of the shell and on one side of the compressor, a mounting frame is arranged on the inner bottom of the shell and on one side of the noise reduction baffle, a mounting seat is arranged on the outer wall of the mounting frame, a first mounting groove is opened on the top of the mounting seat, a motor is arranged above the mounting seat, a buffer assembly capable of performing multi-directional buffering on the motor is arranged inside the first mounting groove, a flexible coupling mechanism is arranged on the output shaft of the motor, a support plate is fixed on the inner bottom of the shell and on one side of the flexible coupling mechanism, a rotating shaft connected to the flexible coupling mechanism is rotatably installed on one side of the support plate, and a fan blade is fixed on one end of the rotating shaft;

[0008] An air duct is provided through the outer wall of the shell, and a conical cover is fixed to the air duct in the shell, a grid is fixed inside the air duct, and a plurality of noise collectors are arranged in a horizontal array in the gap of the grid, a speaker is fixed inside the air duct and on one side of the grid, and the speaker is arranged in a ring shape on the inner wall of the air duct, and a controller is provided on one side of the noise reduction partition, and the controller is electrically connected to the noise collector and the speaker.

[0009] The buffer assembly includes a first mounting groove having a detachable fixing frame arranged inside, a damping rubber sleeve fixed on the inner side of the fixing frame, the damping rubber sleeve being in the shape of a square frame, a plurality of reinforcing plates fixed inside the four sides of the damping rubber sleeve, a first spring fixed between the outer walls of two of the reinforcing plates, a hinge shaft arranged at the inner corner of the damping rubber sleeve, two mutually perpendicular guard plates rotatably mounted on the outer wall of the hinge shaft, a mounting block is dampingly and slidably mounted inside the damping rubber sleeve, a telescopic limit rod is rotatably mounted on the middle part of the bottom of the mounting block, the bottom end of the telescopic limit rod is rotatably connected to the inner wall of the first mounting groove, the rotation direction of the connection between the telescopic limit rod, the first mounting groove and the mounting block is perpendicular to each other, a plurality of second springs fixed to the bottom of the mounting block are fixed on the inner bottom wall of the first mounting groove, and a plurality of anti-slip protrusions are fixed on the side walls around the mounting block.

[0010] The flexible coupling mechanism includes a first connecting block connected by a flange to the output shaft of the motor, a ball block is fixed in the middle of one side of the first connecting block, a side of the first connecting block is located around the ball block and has a plurality of limiting protrusions arranged in an array along a circumferential direction, a second connecting block is fixed on one side of the rotating shaft, a fixed block is fixed on one side of the second connecting block, a ball groove is provided on one side of the fixed block to cooperate with the ball block, a side of the fixed block is located around the ball groove and has a plurality of matching grooves matching with the limiting protrusions along the circumferential direction, a buffer gap is formed between the outer wall of the limiting protrusion and the inner wall of the matching groove, a first buffer pad is provided on one side of the first connecting block and the second connecting block, and one side of the two first buffer pads are combined with each other and wrap the limiting protrusion and the fixed block.

[0011] The first buffer pad comprises a base layer, a sound insulation layer is arranged on one side of the base layer, a buffer layer is arranged on one side of the sound insulation layer, and a wear-resistant layer is arranged on one side of the buffer layer.

[0012] A butterfly bolt is screwed onto one side of the mounting seat, a limiting hole is provided on one side of the fixing frame corresponding to the butterfly bolt, one end of the butterfly bolt is inserted into the limiting hole, positioning grooves are provided on both sides of the fixing frame, and a positioning block matching the positioning groove is fixed on the inner side of the first mounting groove.

[0013] A gear ring is arranged on one side of the air cylinder located outside the shell.

[0014] A silent bearing is arranged at the rotation connection between the rotating shaft and the supporting plate, and an oil hole for lubricating the silent bearing is opened at the top of the supporting plate.

[0015] The noise collector is used to collect the wind sound waves in the wind duct in real time and accurately, the speaker is used to emit sound waves opposite to the wind sound waves, and the controller is used to receive the noise and vibration signals sent by the noise collector and control the speaker to emit sound waves opposite to the wind sound waves to offset the wind sound waves in the wind duct.

[0016] The controller is equipped with a preprocessing module, a deep learning noise reduction module and a noise reduction processing module. The deep learning noise reduction module adopts a convolutional neural network and a recurrent neural network deep learning architecture to learn the mapping relationship between noise and noise reduction signals through training data to achieve noise reduction.

[0017] A noise reduction method for a noise reduction air conditioner, the specific steps are as follows:

[0018] Step 1: When the motor is working, the vibration generated will drive the mounting block to vibrate, and the mounting block and the damping rubber sleeve will slide together. Because the damping rubber sleeve itself has elasticity and damping effects, it can be used in conjunction with the first spring and the second spring to perform front and back, left and right, and up and down shock absorption and buffering on the motor on the mounting block to prevent the vibration from being transmitted to the housing. When the motor vibrates, one end of the output shaft will swing. Through the flexible coupling mechanism, when the output shaft drives the first connecting block to rotate, the first connecting block drives the limiting protrusion to rotate. The limiting protrusion cooperates with the matching groove on the second connecting block to drive the rotating shaft to rotate. The cooperation of the ball block and the ball groove can enable the first connecting block to drive the rotating shaft to rotate in the case of swinging. In conjunction with the first buffer pad, the first connecting block and the second connecting block can be buffered. Finally, the rotating shaft drives the fan blades to rotate to prevent the fan blades from swinging when rotating.

[0019] Step 2: The separated air generated by the fan blades flows through the wind tube, and the sound waves of the wind in the wind tube are detected in real time by the noise collector and fed back to the controller. The noise collector uses a high-precision microphone of model M23401 level 1 to capture noise signals in all directions and provide accurate data support for subsequent noise reduction processing;

[0020] Step 3: The controller receives the noise signal sent by the noise collector, and calculates the optimal sound wave parameters based on the deep learning noise reduction algorithm. The complex mapping relationship between noise and noise reduction signals is learned through a large amount of training data. The algorithm can analyze the noise signal sent by the noise collector in real time, and use a large number of labeled noise and noise reduction signal pairs to train the model. During the training process, the model will learn the noise characteristics and find an effective noise reduction strategy, and quickly calculate the optimal sound wave parameters. The trained deep learning model is used to perform noise reduction on the pre-processed noise data to generate a noise-reduced sound signal;

[0021] Step 4: The controller then controls the speaker to output the sound signal after noise reduction processing, generating a sound wave with an opposite phase and equal amplitude to the wind sound wave, thereby effectively canceling out the noise.

[0022] The technical effects achieved by the present invention are:

[0023] 1. The buffer assembly provided in the present invention can perform all-round shock absorption and buffering on the motor in the front, back, left, right, up and down directions through the damping sliding connection of the damping rubber sleeve and the mounting block, in cooperation with the first spring and the second spring, thereby improving the buffering effect on the motor, preventing the vibration force from being transmitted to the shell when the motor vibrates, and reducing the generation of noise.

[0024] 2. The flexible coupling mechanism provided in the present invention can buffer the swing force of the motor output shaft through the cooperation of the first connecting block, the limiting protrusion, the ball block, the first buffer pad, the second connecting block, the fixed block, the ball groove and the matching groove. In combination with the support plate and the silent bearing, the stability of the rotation of the rotating shaft is improved, thereby improving the stability of the fan blades, avoiding the swing of the fan blades, and further reducing the generation of noise.

[0025] 3. The noise collector, speaker and controller provided in the present invention cooperate to realize noise reduction processing of wind noise in the hair dryer. The controller is equipped with a preprocessing module, a deep learning noise reduction module and a noise reduction processing module. The deep learning noise reduction module adopts a convolutional neural network and a recurrent neural network deep learning architecture. It learns the mapping relationship between noise and noise reduction signal through training data, realizes effective suppression of wind noise, achieves the best noise reduction effect, and improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the front three-dimensional structure of the present invention;

[0027] Figure 2 It is a three-dimensional structural schematic diagram of the internal structure of the air conditioner of the present invention;

[0028] Figure 3 It is a schematic diagram of the three-dimensional structure of the air-conditioning fan of the present invention;

[0029] Figure 4 It is a schematic diagram of a partial three-dimensional structure of an air-conditioning fan of the present invention;

[0030] Figure 5 is a schematic diagram of the three-dimensional structure of the loudspeaker of the present invention;

[0031] Figure 6 It is a three-dimensional structural schematic diagram of the damping rubber sleeve of the present invention;

[0032] Figure 7 It is a three-dimensional structural schematic diagram of the flexible coupling mechanism of the present invention;

[0033] Figure 8 is a schematic diagram of the internal cross-sectional structure of the first buffer pad of the present invention;

[0034] Fig. 9 It is a three-dimensional structural schematic diagram of the mounting base of the present invention;

[0035] Fig.10 It is a block diagram of the noise reduction method of the air conditioner of the present invention.

[0036] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0037] 1. Shell; 2. Mounting frame; 3. Mounting seat; 4. First mounting slot; 5. Fixing frame; 6. Positioning slot; 7. Limiting hole; 8. Damping rubber sleeve; 9. Reinforcement plate; 10. First spring; 11. Hinge shaft; 12. Guard plate; 13. Butterfly bolt; 14. Mounting block; 15. Telescopic limiting rod; 16. Second spring; 17. Anti-skid protrusion; 18. Motor; 19. First connecting block; 20. Limiting protrusion; 21. Ball block; 22. first buffer pad; 23. second connecting block; 24. fixing block; 25. ball groove; 26. matching groove; 27. silent bearing; 28. rotating shaft; 29. ​​fan blade; 30. air cylinder; 31. gear ring; 32. conical cover; 33. grille; 34. noise collector; 35. loudspeaker; 36. noise reduction partition; 37. controller; 01. wear-resistant layer; 02. buffer layer; 03. sound insulation layer; 04. base layer. DETAILED DESCRIPTION

[0038] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0039] like Figure 1-Figure 5 As shown, a noise reduction air conditioner includes a shell 1, a compressor is arranged on one side of the inner bottom of the shell 1, a noise reduction baffle 36 is arranged on the inner bottom of the shell 1 and on one side of the compressor, a mounting frame 2 is arranged on the inner bottom of the shell 1 and on one side of the noise reduction baffle 36, a mounting seat 3 is arranged on the outer wall of the mounting frame 2, a first mounting groove 4 is opened on the top of the mounting seat 3, a motor 18 is arranged above the mounting seat 3, a buffer component that can perform multi-directional buffering on the motor 18 is arranged inside the first mounting groove 4, and the output shaft of the motor 18 is provided with a flexible coupling mechanism A support plate is fixed at the inner bottom of the housing 1 and located on one side of the flexible coupling mechanism. A rotating shaft 28 connected to the flexible coupling mechanism is rotatably installed on one side of the support plate. A fan blade 29 is fixed at one end of the rotating shaft 28. A silent bearing 27 is provided at the rotating connection between the rotating shaft 28 and the support plate to facilitate the rotation of the rotating shaft 28 and make the rotation of the rotating shaft 28 smoother. An oil hole for lubricating the silent bearing 27 is provided on the top of the support plate. Lubricating oil can be added to the silent bearing 27 through the oil hole, thereby improving the stability and practical life of the silent bearing 27.

[0040] The outer wall of the shell 1 is penetrated by a wind tube 30, and a toothed ring 31 is provided on one side of the wind tube 30 located outside the shell 1 to reduce turbulence, thereby facilitating noise reduction. The wind tube 30 is located inside the shell 1 and fixed with a conical cover 32, and a grid plate 33 is fixed inside the wind tube 30. A plurality of noise collectors 34 are arranged in a horizontal array in the gap of the grid plate 33. A speaker 35 is fixed inside the wind tube 30 and located on one side of the grid plate 33. The speaker 35 is arranged in a ring shape on the inner wall of the wind tube 30, and a controller 37 is provided on one side of the noise reduction baffle 36. The controller 37 is electrically connected to the noise collector 34 and the speaker 35. The sound collector 34 is used to collect the sound waves of the wind in the air duct 30 in real time and accurately, the speaker 35 is used to emit sound waves opposite to the sound waves of the wind, and the controller 37 is used to receive the noise and vibration signals sent by the noise collector 34 and control the speaker 35 to emit sound waves opposite to the sound waves of the wind to offset the sound waves of the wind in the air duct 30; the controller 37 has a built-in preprocessing module, a deep learning noise reduction module and a noise reduction processing module. The deep learning noise reduction module adopts a convolutional neural network and a recurrent neural network deep learning architecture, and learns the mapping relationship between noise and noise reduction signals through training data to achieve noise reduction.

[0041] According to the above structure, it is convenient to collect the noise of the wind generated by the rotation of the fan blades 29 flowing through the wind tube 30 in real time, and use the speaker 35 to generate relatively opposing sound waves to offset the sound waves of the wind, thereby effectively reducing the noise during the operation of the air conditioner. The deep learning noise reduction module built into the controller 37 can achieve precise noise reduction and real-time processing, improve the user experience, and also improve the noise reduction effect of wind noise.

[0042] like Figure 2-Figure 6 As shown, the buffer assembly includes a first mounting groove 4 having a detachable fixing frame 5 arranged inside, a damping rubber sleeve 8 fixed on the inner side of the fixing frame 5, the damping rubber sleeve 8 being in the shape of a square frame, a plurality of reinforcing plates 9 fixed inside the damping rubber sleeve 8 on all sides, a first spring 10 fixed between the outer walls of the two reinforcing plates 9, a hinge shaft 11 arranged at the inner corner of the damping rubber sleeve 8, two mutually perpendicular guard plates 12 rotatably mounted on the outer wall of the hinge shaft 11, a mounting block 14 is rotatably mounted on the inner damping sliding of the damping rubber sleeve 8, a telescopic limit rod 15 is rotatably mounted on the bottom middle part of the mounting block 14, the bottom end of the telescopic limit rod 15 is rotatably connected to the inner wall of the first mounting groove 4, the rotation directions of the connection between the telescopic limit rod 15 and the first mounting groove 4 and the mounting block 14 are perpendicular to each other, a plurality of second springs 16 fixed to the bottom of the mounting block 14 are fixed to the inner bottom wall of the first mounting groove 4, and a plurality of anti-slip protrusions 17 are fixed to the side walls around the mounting block 14.

[0043] According to the above structure, when the motor 18 is working, the vibration generated will drive the mounting block 14 to vibrate, and the mounting block 14 and the damping rubber sleeve 8 will slide damped. Because the damping rubber sleeve 8 itself has elasticity and damping effects, in conjunction with the first spring 10 and the second spring 16, the motor 18 on the mounting block 14 can be shock-absorbed and buffered in the front, back, left, right, and up and down directions, which can effectively reduce the vibration force of the motor 18 transmitted to the housing 1, effectively avoid the generation of additional noise, and improve the practicality of the equipment. The reinforcing plate 9 provided increases the strength of the damping rubber sleeve 8, and in conjunction with the first spring 10 improves the stability during the shock absorption process. The cooperation of the hinge shaft 11 and the guard plate 12 further improves the strength and practical life of the damping rubber sleeve 8 without affecting the deformation of the corners of the damping rubber sleeve 8.

[0044] like Figure 2 , Figure 4 , Figure 7 and Figure 8As shown, the flexible coupling mechanism includes a first connecting block 19 to which the output shaft of the motor 18 is connected through a flange, a ball block 21 is fixed in the middle of one side of the first connecting block 19, a side of the first connecting block 19 is located around the ball block 21 and has a plurality of limiting protrusions 20 arrayed in the circumferential direction, a second connecting block 23 is fixed to one side of the rotating shaft 28, a fixing block 24 is fixed to one side of the second connecting block 23, a ball groove 25 that cooperates with the ball block 21 is opened on one side of the fixing block 24, a plurality of matching grooves 26 that cooperate with the limiting protrusions 20 are opened on one side of the fixing block 24 and are located around the ball groove 25 and have a plurality of matching grooves 26 that cooperate with the limiting protrusions 20 in the circumferential direction, and the limiting The outer wall of the positioning protrusion 20 and the inner wall of the matching groove 26 form a buffer gap. A first buffer pad 22 is provided on one side of the first connecting block 19 and the second connecting block 23. One side of the two first buffer pads 22 are combined with each other and wrap around the limiting protrusion 20 and the fixing block 24. The first buffer pad 22 includes a base layer 04, a sound insulation layer 03 is provided on one side of the base layer 04, a buffer layer 02 is provided on one side of the sound insulation layer 03, and a wear-resistant layer 01 is provided on one side of the buffer layer 02, which improves the buffering effect of the first buffer pad 22 and can also reduce the noise generated at the connection between the first connecting block 19 and the second connecting block 23.

[0045] According to the above structure, the swing of the output shaft of the motor 18 can be buffered. When the output shaft of the motor 18 drives the first connecting block 19 to rotate, the first connecting block 19 drives the limiting protrusion 20 to rotate. The limiting protrusion 20 cooperates with the matching groove 26 on the second connecting block 23 to drive the rotating shaft 28 to rotate. The cooperation of the set ball block 21 and the ball groove 25 can enable the first connecting block 19 to drive the rotating shaft 28 to rotate even when it swings. In combination with the first buffer pad 22, the first connecting block 19 and the second connecting block 23 can be buffered. Finally, the rotating shaft 28 drives the fan blades 29 to rotate to prevent the fan blades 29 from swinging and generating noise when rotating.

[0046] like Figure 3-Figure 6 As shown, a butterfly bolt 13 is screwed onto one side of the mounting seat 3, a limiting hole 7 is provided on one side of the fixing frame 5 corresponding to the butterfly bolt 13, one end of the butterfly bolt 13 is inserted into the limiting hole 7, positioning grooves 6 are provided on both sides of the fixing frame 5, and a positioning block matching the positioning groove 6 is fixed to the inner side of the first mounting groove 4.

[0047] According to the above structure, the fixing frame 5 can be installed, fixed and disassembled by the butterfly bolt 13 in cooperation with the positioning groove 6 and the positioning block, thereby facilitating the replacement of the damping rubber sleeve 8, improving the use effect of the equipment, and also improving the buffering effect of the motor 18.

[0048] like Fig.10 As shown, a noise reduction method for a noise reduction air conditioner, the specific steps are as follows:

[0049] Step 1: When the motor 18 is working, the vibration generated will drive the mounting block 14 to vibrate. The mounting block 14 and the damping rubber sleeve 8 will slide and damp. Because the damping rubber sleeve 8 itself has elasticity and damping effect, it can be combined with the first spring 10 and the second spring 16 to perform front and back, left and right, and up and down shock absorption and buffering on the motor 18 on the mounting block 14 to prevent the vibration from being transmitted to the housing 1. When the motor 18 vibrates, one end of the output shaft will swing. Through the flexible coupling mechanism, when the output shaft drives the first connecting block 19 to rotate, the first connecting block 19 drives the limiting protrusion 20 to rotate. The limiting protrusion 20 cooperates with the matching groove 26 on the second connecting block 23 to drive the rotating shaft 28 to rotate. The cooperation of the ball block 21 and the ball groove 25 can enable the first connecting block 19 to drive the rotating shaft 28 to rotate in the swinging state. The first buffer pad 22 can be combined to buffer the first connecting block 19 and the second connecting block 23. Finally, the rotating shaft 28 drives the fan blades 29 to rotate to prevent the fan blades 29 from swinging when rotating.

[0050] Step 2: The separated air generated by the fan blades 29 flows through the air duct 30, and the sound waves of the air in the air duct 30 are detected in real time by the noise collector 34 and fed back to the controller 37. The noise collector 34 adopts a high-precision microphone of model M23401 level 1 type to capture noise signals in all directions, providing accurate data support for subsequent noise reduction processing;

[0051] Step 3: The controller 37 receives the noise signal sent by the noise collector 34, and calculates the optimal sound wave parameters according to the deep learning noise reduction algorithm, and learns the complex mapping relationship between noise and noise reduction signals through a large amount of training data. The algorithm can analyze the noise signal sent by the noise collector 34 in real time, and use a large number of labeled noise and noise reduction signal pairs to train the model. During the training process, the model will learn the noise characteristics and find an effective noise reduction strategy, and quickly calculate the optimal sound wave parameters, and use the trained deep learning model to perform noise reduction on the pre-processed noise data to generate a noise-reduced sound signal;

[0052] Step 4: The controller 37 controls the speaker 35 to output the sound signal after the noise reduction processing, generating a sound wave with an opposite phase and equal amplitude to the wind sound wave, thereby achieving effective noise cancellation.

[0053] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A noise reduction air conditioner, comprising a housing (1), characterized in that: A compressor is arranged on one side of the inner bottom of the shell (1); a noise reduction baffle (36) is arranged on the inner bottom of the shell (1) and on one side of the compressor; a mounting frame (2) is arranged on the inner bottom of the shell (1) and on one side of the noise reduction baffle (36); a mounting seat (3) is arranged on the outer wall of the mounting frame (2); a first mounting groove (4) is arranged on the top of the mounting seat (3); a motor (18) is arranged above the mounting seat (3); a buffer component capable of performing multi-directional buffering on the motor (18) is arranged inside the first mounting groove (4); a flexible coupling mechanism is arranged on the output shaft of the motor (18); a support plate is fixed on the inner bottom of the shell (1) and on one side of the flexible coupling mechanism; a rotating shaft (28) connected to the flexible coupling mechanism is rotatably installed on one side of the support plate; a fan blade (29) is fixed on one end of the rotating shaft (28); An air duct (30) is provided through the outer wall of the shell (1); the air duct (30) is located inside the shell (1) and is fixed with a conical cover (32); a grid plate (33) is fixed inside the air duct (30); a plurality of noise collectors (34) are arranged in a horizontal array in the gap of the grid plate (33); a loudspeaker (35) is fixed inside the air duct (30) and located on one side of the grid plate (33); the loudspeaker (35) is arranged in a ring shape on the inner wall of the air duct (30); a controller (37) is provided on one side of the noise reduction partition plate (36); the controller (37) is electrically connected to the noise collector (34) and the loudspeaker (35).

2. A noise reduction air conditioner according to claim 1, characterized in that: The buffer assembly comprises a first mounting groove (4) having a detachable fixing frame (5) disposed inside, a damping rubber sleeve (8) being fixed on the inner side of the fixing frame (5), the damping rubber sleeve (8) being in the shape of a square frame, a plurality of reinforcing plates (9) being fixed inside the four sides of the damping rubber sleeve (8), a first spring (10) being fixed between the outer walls of two reinforcing plates (9), a hinge shaft (11) being disposed at the inner corner of the damping rubber sleeve (8), two mutually perpendicular guard plates (12) being rotatably mounted on the outer wall of the hinge shaft (11), the damping rubber sleeve (8) ) is provided with an internal damping sliding installation of a mounting block (14), a telescopic limiting rod (15) is rotatably installed in the middle of the bottom of the mounting block (14), the bottom end of the telescopic limiting rod (15) is rotatably connected to the inner wall of the first mounting groove (4), the rotation directions of the connection between the telescopic limiting rod (15), the first mounting groove (4) and the mounting block (14) are perpendicular to each other, a plurality of second springs (16) fixed to the bottom of the mounting block (14) are fixed to the inner bottom wall of the first mounting groove (4), and a plurality of anti-slip protrusions (17) are fixed to the surrounding side walls of the mounting block (14).

3. The noise reduction air conditioner according to claim 1, characterized in that: The flexible coupling mechanism comprises a first connection block (19) to which the output shaft of the motor (18) is connected via a flange, a ball block (21) is fixed in the middle of one side of the first connection block (19), a plurality of limiting protrusions (20) are arranged in a circumferential direction around the ball block (21) on one side of the first connection block (19), a second connection block (23) is fixed on one side of the rotating shaft (28), a fixing block (24) is fixed on one side of the second connection block (23), and a fixing block (24) is provided on one side of the fixing block (24) for contact with the ball block (21). 1) To match the upper ball groove (25), one side of the fixing block (24) is located around the ball groove (25) and is provided with a plurality of matching grooves (26) matching with the limiting protrusion (20) along the circumferential direction, the outer wall of the limiting protrusion (20) and the inner wall of the matching groove (26) form a buffer gap, and one side of the first connecting block (19) and the second connecting block (23) are both provided with a first buffer pad (22), and one side of the two first buffer pads (22) are combined with each other and wrap the limiting protrusion (20) and the fixing block (24).

4. The noise reduction air conditioner according to claim 1, characterized in that: The first buffer pad (22) comprises a base layer (04), a sound insulation layer (03) is arranged on one side of the base layer (04), a buffer layer (02) is arranged on one side of the sound insulation layer (03), and a wear-resistant layer (01) is arranged on one side of the buffer layer (02).

5. The noise reduction air conditioner according to claim 1, characterized in that: A butterfly bolt (13) is screwed onto one side of the mounting seat (3); a limiting hole (7) is provided on one side of the fixing frame (5) corresponding to the butterfly bolt (13); one end of the butterfly bolt (13) is inserted into the limiting hole (7); positioning grooves (6) are provided on both sides of the fixing frame (5); and a positioning block that cooperates with the positioning groove (6) is fixed to the inner side of the first mounting groove (4).

6. The noise reduction air conditioner according to claim 1, characterized in that: A gear ring (31) is provided on one side of the wind tube (30) located outside the housing (1).

7. The noise reduction air conditioner according to claim 1, characterized in that: A silent bearing (27) is provided at the rotation connection between the rotating shaft (28) and the support plate, and an oil hole for lubricating the silent bearing (27) is provided at the top of the support plate.

8. The noise reduction air conditioner according to claim 1, characterized in that: The noise collector (34) is used to collect the sound waves of the wind in the wind tube (30) in real time and accurately; the speaker (35) is used to emit sound waves opposite to the sound waves of the wind; and the controller (37) is used to receive the noise and vibration signals sent by the noise collector (34) and control the speaker (35) to emit sound waves opposite to the sound waves of the wind, so as to offset the sound waves of the wind in the wind tube (30).

9. The noise reduction air conditioner according to claim 1, characterized in that: The controller (37) is built with a preprocessing module, a deep learning noise reduction module and a noise reduction processing module. The deep learning noise reduction module adopts a convolutional neural network and a recurrent neural network deep learning architecture to learn the mapping relationship between noise and noise reduction signals through training data to achieve noise reduction.

10. A noise reduction method for a noise reduction air conditioner, used for using the noise reduction air conditioner according to any one of claims 1 to 9, characterized in that: The specific steps are as follows: Step 1: When the motor (18) is working, the vibration generated will drive the mounting block (14) to vibrate, and the mounting block (14) and the damping rubber sleeve (8) will slide together. Since the damping rubber sleeve (8) itself has elasticity and damping effect, it can be used in conjunction with the first spring (10) and the second spring (16) to perform front and rear, left and right, and up and down shock absorption and buffering on the motor (18) on the mounting block (14), thereby preventing the vibration from being transmitted to the housing (1). When the motor (18) vibrates, one end of the output shaft will swing. Through the flexible coupling mechanism, when the output shaft drives the first connecting block The first connecting block (19) rotates, the first connecting block (19) drives the limiting protrusion (20) to rotate, the limiting protrusion (20) cooperates with the matching groove (26) on the second connecting block (23), and can drive the rotating shaft (28) to rotate. The cooperation of the provided ball block (21) and the ball groove (25) can enable the first connecting block (19) to drive the rotating shaft (28) to rotate in the case of swinging. The first buffer pad (22) is used to buffer the first connecting block (19) and the second connecting block (23). Finally, the rotating shaft (28) drives the fan blade (29) to rotate to prevent the fan blade (29) from swinging when rotating. Step 2: The separated air generated by the fan blades (29) passes through the air duct (30), and the sound waves of the air in the air duct (30) are detected in real time by the noise collector (34) and fed back to the controller (37). The noise collector (34) adopts a high-precision microphone of model M23401 level 1 type to capture noise signals in all directions, so as to provide accurate data support for subsequent noise reduction processing; Step 3: The controller (37) receives the noise signal sent by the noise collector (34), and calculates the optimal sound wave parameters according to the deep learning noise reduction algorithm, and learns the complex mapping relationship between noise and noise reduction signal through a large amount of training data. The algorithm can analyze the noise signal sent by the noise collector (34) in real time, and use a large number of labeled noise and noise reduction signal pairs to train the model. During the training process, the model will learn the noise characteristics and find an effective noise reduction strategy, and quickly calculate the optimal sound wave parameters, and use the trained deep learning model to perform noise reduction on the pre-processed noise data to generate a noise-reduced sound signal; Step 4: The controller (37) controls the loudspeaker (35) to output the sound signal after the noise reduction process, thereby generating a sound wave with a phase opposite to that of the wind sound wave and an equal amplitude, thereby achieving effective noise cancellation.

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