Vibration and noise reduction synchronous motor

Abstract

The utility model discloses a vibration and noise reduction synchronous motor, which comprises a motor shell, the outer surface of the motor shell is fixedly connected with fins, the outer surface of each fin is provided with a sound insulation and absorption sleeve, and the outer surface of each sound insulation and absorption sleeve is provided with a damping protective sleeve. According to the vibration and noise reduction synchronous motor, after the motor is put into use, noise generated in the motor can penetrate through the motor shell to reach the sound insulation and absorption sleeve, the sound insulation and absorption sleeve is made of polyurethane foam plastic, and the noise reduction effect is good. The shock-absorbing and sound-insulating sleeve not only has good flexibility and rebound resilience for shock absorption, but also has sound-insulating and sound-absorbing functions for absorbing noise in transmission for noise reduction, and meanwhile, through holes which are overlapped with the sound-insulating and sound-absorbing sleeve and the shock-absorbing protective sleeve can be used for conveniently transferring and circulating heat to the heat-conducting protective shell, so that the heat-insulating and sound-absorbing sleeve is convenient to use. The sound insulation and absorption prevention sleeve and the damping protection sleeve block heat at the motor shell.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous motors, in particular to a vibration-reducing and noise-reducing synchronous motor. Background Art

[0002] Synchronous motors, like induction motors (asynchronous motors), are a commonly used type of AC motor. A motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Currently, motors generate excessive noise after startup. This noise is caused by the vibration of objects. The main sources of motor noise are electromagnetic noise, air duct noise, and mechanical noise. Mechanical noise is primarily caused by bearing vibration.

[0003] After searching, it was found that a vibration-damping and noise-reducing synchronous motor was disclosed in the Chinese Utility Model Patent Publication No. CN205829372U. By setting a shock-absorbing device and a shock-absorbing layer, the effect of reducing the vibration and noise generated when the motor is working is achieved. However, the setting of the shock-absorbing structure can only assist the bearings inside the motor to reduce vibration, and cannot effectively reduce the noise generated by the motor, and cannot reduce the noise in the process of noise propagating out of the motor. Therefore, a synchronous motor that can absorb noise and reduce noise during the noise propagation process is needed. Utility Model Content

[0004] The main purpose of the utility model is to provide a vibration-reducing and noise-reducing synchronous motor, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A vibration-damping and noise-reducing synchronous motor comprises a motor housing, wherein fins are fixedly connected to the outer surface of the motor housing, sound-insulating and sound-absorbing sleeves are provided on the outer surface of the fins, and a shock-absorbing protective sleeve is provided on the outer surface of the sound-insulating and sound-absorbing sleeves. Through holes are provided on the outer surfaces of the sound-insulating and sound-absorbing sleeves and the shock-absorbing protective sleeves, and a heat-conducting protective shell is fixedly connected to the outer surface of the shock-absorbing protective shell, and arc grooves are provided on the outer surface of the heat-conducting protective shell.

[0007] In order to facilitate the installation of the heat-conducting protective shell, as a vibration-reducing and noise-reducing synchronous motor of the present invention, the inner wall of the heat-conducting protective shell is fixedly connected with a limit stop ring, and the outer surface of the motor housing is fixedly connected with a flange ring.

[0008] In order to facilitate the insertion of bolts, as a vibration-damping and noise-reducing synchronous motor of the present invention, the upper surface of the limit ring and the upper surface of the flange ring are both provided with fixing holes, and the lower surface of the heat-conducting protective shell is fixedly connected with pins.

[0009] In order to achieve the effect of reducing noise at the tail of the motor, as a vibration-reducing and noise-reducing synchronous motor of the present invention, a tail cover is fixedly connected to the lower surface of the motor housing, and a cavity is provided inside the tail cover.

[0010] In order to achieve the effect of installing the bottom end of the rotating shaft, as a vibration-reducing and noise-reducing synchronous motor of the present invention, the inner wall of the tail cover is fixedly connected with a sound insulation sheet, and the middle part of the inner wall of the tail cover is fixedly connected with a tail shaft seat.

[0011] In order to achieve the effect of installing bearings, as a vibration-reducing and noise-reducing synchronous motor of the present invention, the inner wall of the motor housing is fixedly connected with a shock-absorbing frame, and the inner wall of the shock-absorbing frame is provided with a bearing.

[0012] In order to achieve the effect of forming the main body of the motor, as a vibration-reducing and noise-reducing synchronous motor of the utility model, the inner wall of the motor housing is fixedly connected to the stator, the inner wall of the tail shaft seat is movably connected to the rotating shaft, and the outer surface of the rotating shaft is fixedly connected to the rotor.

[0013] In order to achieve the effect of closing the upper and lower openings of the motor housing, as a vibration-reducing and noise-reducing synchronous motor of the utility model, the upper surface of the motor housing is fixedly connected to an end cover 1, and the inner wall of the lower surface of the motor housing is fixedly connected to an end cover 2.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The vibration-damping and noise-reducing synchronous motor is provided with a motor housing, fins, sound insulation and sound-absorbing sleeves, shock-absorbing protective sleeves, through-holes, heat-conducting protective shells and arc grooves. After the motor is put into use, the noise generated in the motor will pass through the motor housing and reach the sound insulation and sound-absorbing sleeves. The sound insulation and sound-absorbing sleeves are made of polyurethane foam plastic, which not only has good softness and resilience for vibration reduction, but also has sound insulation and sound-absorbing functions to absorb the noise in transmission for noise reduction. At the same time, the overlapping through-holes of the sound insulation and sound-absorbing sleeves and the shock-absorbing protective sleeves can facilitate the transfer of heat to the heat-conducting protective shell, preventing the sound insulation and sound-absorbing sleeves and the shock-absorbing protective sleeves from blocking heat at the motor housing, thereby absorbing noise during noise transmission for noise reduction.

[0016] 2. The vibration-damping and noise-reducing synchronous motor is provided with a tail cover, a cavity and a sound insulation sheet. The sound insulation sheet is made of sound insulation felt. When the noise propagates at the tail of the motor, the cavity and the sound insulation sheet isolate the noise, thereby avoiding the generation of loud noise at the tail end of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a vibration-reducing and noise-reducing synchronous motor according to Example 1 of the present utility model;

[0018] Figure 2 This is a schematic diagram of the axonometric structure of a vibration-reducing and noise-reducing synchronous motor according to Example 1 of the present utility model, viewed from above;

[0019] Figure 3 This is a schematic cross-sectional view of a vibration-reducing and noise-reducing synchronous motor according to Example 1 of the present utility model;

[0020] Figure 4 This is a schematic cross-sectional view of a right side view of a vibration and noise reduction synchronous motor according to Example 1 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the exploded structure of an end cover in a synchronous motor with reduced vibration and noise according to Example 1 of the utility model;

[0022] Figure 6 This is a schematic diagram of the axonometric structure of a sound-insulating and sound-absorbing sleeve in a vibration-reducing and noise-reducing synchronous motor according to Example 1 of the utility model;

[0023] Figure 7 This is a schematic diagram of the axonometric structure of a heat-conducting protective shell in a vibration-reducing and noise-reducing synchronous motor according to Example 1 of the utility model.

[0024] In the figure: 1. Motor housing; 2. Fins; 3. Sound insulation and sound absorbing sleeve; 4. Shock-absorbing protective sleeve; 5. Through hole; 6. Heat-conducting protective shell; 7. Arc groove; 8. Limit ring; 9. Flange ring; 10. Fixing hole; 11. Pin; 12. Tail cover; 13. Cavity; 14. Sound insulation sheet; 15. Tail shaft seat; 16. Shock-absorbing frame; 17. Bearing; 18. Stator; 19. Rotor; 20. Rotating shaft; 21. End cover 1; 22. End cover 2. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] like Figure 1-7 As shown, a vibration-damping and noise-reducing synchronous motor includes a motor housing 1, the outer surface of the motor housing 1 is fixedly connected to a fin 2, the outer surface of the fin 2 is provided with a sound insulation and sound absorbing sleeve 3, the outer surface of the sound insulation and sound absorbing sleeve 3 is provided with a shock-absorbing protective sleeve 4, the outer surfaces of the sound insulation and sound absorbing sleeve 3 and the shock-absorbing protective sleeve 4 are both provided with through holes 5, the outer surface of the shock-absorbing protective sleeve 4 is fixedly connected to a heat-conducting protective shell 6, and the outer surface of the heat-conducting protective shell 6 is provided with an arc groove 7.

[0028] When in use, through the arrangement of the motor housing 1, fins 2, sound insulation and sound absorbing sleeves 3, shock-absorbing protective sleeves 4, through holes 5, heat-conducting protective shells 6 and arc grooves 7, the sound insulation and sound absorbing sleeves 3 are sleeved on the fins 2, and the shock-absorbing protective sleeves 4 are sleeved on the sound insulation and sound absorbing sleeves 3. At the same time, when the two are installed, the through holes 5 on the two are overlapped as much as possible. There are two heat-conducting protective shells 6, which wrap up the shock-absorbing protective sleeves 4 and other structures. Bolts can be used to fix the bottom of the two heat-conducting protective shells 6 at the pins 11, and bolts are used to fix the top of the heat-conducting protective shell 6 in the fixing holes 10 where the limit ring 8 and the flange ring 9 overlap. After the motor is put into use, the noise generated in the motor will pass through the motor housing 1 and reach the sound insulation and sound absorbing sleeve 3. The sound insulation and sound absorbing sleeve 3 is made of polyurethane foam plastic, which not only has good softness and resilience for vibration reduction, but also has sound insulation and sound absorbing functions to absorb the noise in transmission for noise reduction. At the same time, the overlapping through holes 5 of the sound insulation and sound absorbing sleeve 3 and the shock absorption protective sleeve 4 can facilitate the transfer of heat to the heat conductive protective shell 6, preventing the sound insulation and sound absorbing sleeve 3 and the shock absorption protective sleeve 4 from blocking the heat at the motor housing 1, thereby absorbing the noise for noise reduction during noise propagation.

[0029] In this embodiment, a limit stop ring 8 is fixedly connected to the inner wall of the heat-conducting protective shell 6 , and a flange ring 9 is fixedly connected to the outer surface of the motor housing 1 .

[0030] During specific use, the arrangement of the limit stop ring 8 and the flange ring 9 facilitates the installation of the heat-conducting protective shell 6 .

[0031] In this embodiment, fixing holes 10 are provided on the upper surfaces of the limit stop ring 8 and the flange ring 9 , and pins 11 are fixedly connected to the lower surface of the heat-conducting protective shell 6 .

[0032] During specific use, the setting of the fixing hole 10 facilitates the insertion of the bolt.

[0033] In this embodiment, a tail cover 12 is fixedly connected to the lower surface of the motor housing 1 , and a cavity 13 is provided inside the tail cover 12 .

[0034] During specific use, the cavity 13 is provided to reduce noise at the tail of the motor.

[0035] In this embodiment, a sound insulation sheet 14 is fixedly connected to the inner wall of the tail cover 12 , and a tail shaft seat 15 is fixedly connected to the middle portion of the inner wall of the tail cover 12 .

[0036] During specific use, the bottom end of the rotating shaft 20 is installed through the setting of the tail shaft seat 15.

[0037] In this embodiment, a shock-absorbing frame 16 is fixedly connected to the inner wall of the motor housing 1 , and a bearing 17 is provided on the inner wall of the shock-absorbing frame 16 .

[0038] During specific use, the bearing 17 is installed through the setting of the shock-absorbing frame 16.

[0039] In this embodiment, the stator 18 is fixedly connected to the inner wall of the motor housing 1 , the rotating shaft 20 is movably connected to the inner wall of the tail shaft seat 15 , and the rotor 19 is fixedly connected to the outer surface of the rotating shaft 20 .

[0040] During specific use, the stator 18, the rotor 19 and the rotating shaft 20 are arranged to form the main body of the motor.

[0041] In this embodiment, an end cover 1 21 is fixedly connected to the upper surface of the motor housing 1 , and an end cover 22 is fixedly connected to the inner wall of the lower surface of the motor housing 1 .

[0042] During specific use, the upper and lower openings of the motor housing 1 are closed by disposing the end cover 1 21 and the end cover 22 .

[0043] Working principle: After the motor is put into use, the noise generated inside the motor will pass through the motor casing 1 and reach the sound insulation and sound absorbing sleeve 3. The sound insulation and sound absorbing sleeve 3 is made of polyurethane foam plastic, which not only has good softness and resilience for vibration reduction, but also has sound insulation and sound absorption functions to absorb the transmitted noise for noise reduction. When the noise propagates at the tail of the motor, the noise is isolated under the action of the cavity 13 and the sound insulation sheet 14.

[0044] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A vibration-reducing and noise-reducing synchronous motor, comprising a motor housing (1), characterized in that: The outer surface of the motor housing (1) is fixedly connected to a fin (2), the outer surface of the fin (2) is provided with a sound insulation and sound absorption sleeve (3), the outer surface of the sound insulation and sound absorption sleeve (3) is provided with a shock absorption protective sleeve (4), the outer surfaces of the sound insulation and sound absorption sleeve (3) and the shock absorption protective sleeve (4) are both provided with through holes (5), the outer surface of the shock absorption protective sleeve (4) is fixedly connected to a heat conduction protective shell (6), and the outer surface of the heat conduction protective shell (6) is provided with an arc groove (7).

2. The vibration-reducing and noise-reducing synchronous motor according to claim 1, characterized in that: The inner wall of the heat-conducting protective shell (6) is fixedly connected to a limit stop ring (8), and the outer surface of the motor housing (1) is fixedly connected to a flange ring (9).

3. The vibration and noise reduction synchronous motor according to claim 2, characterized in that: The upper surface of the limit stop ring (8) and the upper surface of the flange ring (9) are both provided with fixing holes (10), and the lower surface of the heat-conducting protective shell (6) is fixedly connected with a pin (11).

4. The vibration and noise reduction synchronous motor according to claim 1, characterized in that: A tail cover (12) is fixedly connected to the lower surface of the motor housing (1), and a cavity (13) is provided inside the tail cover (12).

5. The vibration and noise reduction synchronous motor according to claim 4, characterized in that: A sound insulation sheet (14) is fixedly connected to the inner wall of the tail cover (12), and a tail shaft seat (15) is fixedly connected to the middle portion of the inner wall of the tail cover (12).

6. The vibration and noise reduction synchronous motor according to claim 1, characterized in that: A shock-absorbing frame (16) is fixedly connected to the inner wall of the motor housing (1), and a bearing (17) is provided on the inner wall of the shock-absorbing frame (16).

7. The vibration and noise reduction synchronous motor according to claim 5, characterized in that: The inner wall of the motor housing (1) is fixedly connected to a stator (18), the inner wall of the tail shaft seat (15) is movably connected to a rotating shaft (20), and the outer surface of the rotating shaft (20) is fixedly connected to a rotor (19).

8. The vibration and noise reduction synchronous motor according to claim 1, characterized in that: The upper surface of the motor housing (1) is fixedly connected to an end cover 1 (21), and the inner wall of the lower surface of the motor housing (1) is fixedly connected to an end cover 2 (22).

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