Low-noise damping type permanent magnet brushless motor
By introducing multiple sets of shock absorbing layers and sound insulation layers of bearing plates, slide columns, springs and specific materials into permanent magnet brushless motors, the vibration and noise problems of the motor are solved, the low noise and shock absorption effects are achieved, and the practicality of the motor is improved.
Patent Information
- Application Number
- CN202422449929.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-10
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-10-10
AI Technical Summary
Existing permanent magnet brushless motors produce vibration and noise during operation, affecting their usability.
A low-noise shock-absorbing permanent magnet brushless motor is designed, using a structure of multiple groups of bearing plates, slide columns, spring and sponge shock-absorbing layers and polyurethane foam plastic sound insulation layers to reduce vibration and noise through multiple shock-absorbing and sound insulation methods.
It effectively reduces the vibration and noise of the motor, and improves the overall usability and reliability of the motor.
Smart Images
Figure CN223261383U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motors, in particular to a low-noise and vibration-reducing permanent magnet brushless motor. Background Art
[0002] A brushless motor is a permanent magnet motor that uses electronic circuitry for phase commutation or current control. It consists of a motor and a driver. This motor generates a magnetic field using permanent magnets, eliminating the need for brushes and a commutator to switch the current direction, hence the name "brushless." Permanent magnet brushless motors are available in two types: sinusoidal and square wave drive. Those with rectangular drive current are typically called permanent magnet brushless DC motors, while those with sinusoidal drive current are typically called permanent magnet AC servo motors. Based on the type of sensing, they can be categorized as sensored motors and positive sensored motors. Permanent magnet brushless motors offer advantages such as high efficiency, high reliability, and long life, making them widely used in applications requiring high performance and reliability, such as aerospace, power tools, and electric vehicles.
[0003] The existing permanent magnet brushless motor will generate vibration when working, and noise will be generated due to vibration friction. Therefore, it is particularly important to improve the existing permanent magnet brushless motor and design a new low-noise and vibration-damping permanent magnet brushless motor to solve the above technical defects and improve the practicality of the overall permanent magnet brushless motor. Utility Model Content
[0004] The purpose of the present utility model is to provide a low-noise vibration-reducing permanent magnet brushless motor, which can reduce noise while reducing vibration, improve the overall usability of the permanent magnet brushless motor, and solve the problems raised in the above-mentioned background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A low-noise and vibration-damping permanent magnet brushless motor includes a main body, a shell is provided on the outside of the main body, multiple groups of receiving disks are provided on the outside of the main body and inside the shell, the receiving disk is fixedly connected to a first sliding column at one end away from the main body and located inside the shell, a first fixing column is slidably connected to the outside of the first sliding column and located inside the shell, a second spring is provided on the outside of the first fixing column and located inside the shell, and fixed blocks are provided on both sides of the multiple groups of the second springs and located inside the shell, and the fixing blocks are fixedly connected to a sliding rod at one end away from the second springs in the same row and located inside the shell.
[0007] As a preferred solution of the present invention, a slider is slidably connected to the outside of the sliding rod and located inside the shell, a fourth spring is provided on the outside of the sliding rod and located between the fixed block and the slider, one end of the slider is close to the receiving disk and is located inside the shell and is rotatably connected to a rotating rod, and the end of the rotating rod is rotatably connected to the connecting block away from the slider, and the connecting block is fixedly connected to the receiving disk.
[0008] As a preferred solution of the present invention, a second sliding column is slidably connected to the interior of the fixed block and at one end close to the receiving plate, the second sliding column is fixedly connected to the receiving plate at one end away from the fixed block, and a third spring is provided on the outside of the second sliding column and between the fixed block and the receiving plate.
[0009] As a preferred solution of the present invention, the fixing block and the first sliding column are both fixedly connected to a heat dissipation block at one end away from the receiving plate and located inside the shell.
[0010] As a preferred solution of the present invention, a shock-absorbing layer is provided inside the shell, and the material of the shock-absorbing layer is sponge.
[0011] As a preferred solution of the present invention, a sound insulation layer is provided inside the shell and at one end of the shock-absorbing layer away from the receiving tray, and the material of the sound insulation layer is polyurethane foam plastic.
[0012] As a preferred solution of the present invention, a base is provided at the end of the shell away from the main body, a groove is provided at the side of the base close to the main body, a support rod is fixedly connected to the inside of the groove, a moving rod is slidably connected to the outside of the support rod and at the end away from the base, a first spring is provided at the outside of the moving rod and located inside the groove, and a tray is fixedly connected to the end of the moving rod away from the base.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. In the utility model, through the design of the main body, shell, base, groove, support rod, moving rod, first spring, tray, receiving plate, first sliding column, first fixed column, second spring, fixed block, second sliding column, third spring, sliding rod, fourth spring, slider, rotating rod, connecting block and shock-absorbing layer, when the permanent magnet brushless motor is put into use, the design of multiple sets of receiving plates and bases can perform multiple shock absorption on the forces generated on the outside when the main body vibrates, so that the main body can be installed from various directions. The material of the shock-absorbing layer is sponge. The pore structure of the sponge can absorb the pressure generated by vibration and has good shock isolation performance, which can further help reduce the vibration of the object.
[0015] 2. In the present invention, through the design of the main body, outer shell, heat sink, shock-absorbing layer and sound insulation layer, the heat sink can accelerate the heat dissipation of the main body. The material of the shock-absorbing layer is sponge. The pores in the sponge can disperse and slow down the sound waves, retain a large amount of air, and at the same time make it difficult for the sound waves to be transmitted in the material, thereby achieving the sound insulation effect. The material of the sound insulation layer is polyurethane foam plastic. Polyurethane foam plastic has good sound insulation and sound absorption properties, and is anti-corrosion, waterproof and flame retardant, further enhancing the sound insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the base structure of the utility model;
[0018] Figure 3 This is a schematic diagram of the front cross-section structure of the shell of the utility model;
[0019] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A in the figure.
[0020] In the figure: 1. Main body; 2. Outer shell; 3. Base; 31. Groove; 32. Support rod; 33. Moving rod; 34. First spring; 35. Tray; 4. Receiving plate; 41. First sliding column; 42. First fixed column; 43. Second spring; 5. Fixed block; 51. Second sliding column; 52. Third spring; 6. Sliding rod; 61. Fourth spring; 62. Sliding block; 63. Rotating rod; 64. Connecting block; 7. Heat dissipation block; 8. Shock-absorbing layer; 9. Sound insulation layer. DETAILED DESCRIPTION
[0021] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0022] Example:
[0023] See also Figures 1-4 , the utility model provides a technical solution:
[0024] A low-noise, vibration-damping permanent magnet brushless motor, comprising a main body 1, a housing 2 being provided on the outside of the main body 1, multiple sets of receiving plates 4 being provided on the outside of the main body 1 and located inside the housing 2, a first sliding post 41 being fixedly connected to the receiving plate 4 at one end away from the main body 1 and located inside the housing 2, a first fixing post 42 being slidably connected to the outside of the first sliding post 41 and located inside the housing 2, a second spring 43 being provided on the outside of the first fixing post 42 and located inside the housing 2, a fixing block 5 being provided on both sides of the multiple sets of second springs 43 and located inside the housing 2, the fixing block 5 being away from one end of the second springs 43 in the same row The outer side of the slide rod 6 is fixedly connected to the inner side of the shell 2, and the outer side of the slide rod 6 is slidably connected to the inner side of the shell 2. A fourth spring 61 is provided on the outer side of the slide rod 6 and between the fixed block 5 and the slide rod 62. The end of the slide rod 62 is close to the receiving plate 4 and is rotatably connected to the rotating rod 63 inside the shell 2. The end of the rotating rod 63 away from the slider 62 is rotatably connected to the connecting block 64. The connecting block 64 is fixedly connected to the receiving plate 4. The inner side of the fixed block 5 and the end close to the receiving plate 4 are slidably connected to the second slide column 51. The end of the second slide column 51 away from the fixed block 5 is rotatably connected to the receiving plate 4. A third spring 52 is provided on the outside of the second slide post 51 and between the fixed block 5 and the receiving plate 4. When the permanent magnet brushless motor is put into use, when the main body 1 starts and generates vibration, the main body 1 vibrates and squeezes the receiving plate 4. The receiving plate 4 is subjected to force, thereby driving the first slide post 41 to move toward the inside of the first fixed post 42, thereby squeezing the second spring 43. The second spring 43 rebounds, thereby removing part of the force generated by the vibration, thereby achieving a shock absorption effect. The receiving plate 4 is subjected to force to drive the connecting block 64 to move toward the direction close to the slide rod 6, thereby driving the rotating rod 63 to push the slider 62 It moves along the slide rod 6 toward the first fixed column 42, thereby squeezing the fourth spring 61, and the fourth spring 61 rebounds and pushes the slide block 62, thereby removing part of the force generated by the vibration, thereby further achieving a shock-absorbing effect. The receiving plate 4 is forced to drive the second slide column 51 to slide toward the inside of the fixed block 5, thereby squeezing the third spring 52, and the third spring 52 rebounds, thereby removing part of the force generated by the vibration, thereby further achieving a shock-absorbing effect. The design of multiple sets of receiving plates 4 can absorb the force generated on the outside when the main body 1 vibrates, so that the main body 1 can be installed from various directions.
[0025] Furthermore, the fixing block 5 and the first sliding column 41 are fixedly connected to a heat dissipation block 7 at one end away from the receiving plate 4 and located inside the housing 2 . The heat dissipation block 7 can accelerate the heat dissipation of the main body 1 .
[0026] Among them, a shock-absorbing layer 8 is provided inside the outer shell 2. The material of the shock-absorbing layer 8 is sponge. The pores in the sponge can disperse and slow down the sound waves, retain a large amount of air, and at the same time make it difficult for the sound waves to be transmitted in the material, thereby achieving a sound insulation effect. The pore structure of the sponge can absorb the pressure generated by vibration and has good shock-isolating performance, which can help reduce noise and reduce the vibration of objects.
[0027] Secondly, a sound insulation layer 9 is provided inside the shell 2 and at the end of the shock-absorbing layer 8 away from the receiving plate 4. The material of the sound insulation layer 9 is polyurethane foam plastic. Polyurethane foam plastic has good sound insulation and sound absorption properties, and is also anti-corrosion, waterproof and flame retardant, further enhancing the sound insulation effect.
[0028] Furthermore, a base 3 is provided at the end of the shell 2 away from the main body 1, and a groove 31 is provided on the side of the base 3 close to the main body 1. A support rod 32 is fixedly connected to the inside of the groove 31, and a moving rod 33 is slidably connected to the outside of the support rod 32 and the end away from the base 3. A first spring 34 is provided on the outside of the moving rod 33 and located inside the groove 31. The end of the moving rod 33 away from the base 3 is fixedly connected to the tray 35. When the permanent magnet brushless motor is put into use, when the main body 1 starts and vibrates, the main body 1 vibrates and squeezes the tray 35, thereby sliding the moving rod 33 along the support rod 32 into the groove 31, thereby squeezing the first spring 34, and the first spring 34 rebounds, thereby removing part of the force generated by the vibration, thereby achieving a shock-absorbing effect.
[0029] In this embodiment, the implementation scenario is specifically as follows: in actual use, when the permanent magnet brushless motor is put into use, when the main body 1 starts to vibrate, the main body 1 vibrates and squeezes the tray 35, thereby sliding the moving rod 33 along the support rod 32 into the groove 31, thereby squeezing the first spring 34, and the first spring 34 rebounds, thereby removing part of the force generated by the vibration, thereby achieving a shock absorption effect. The vibration of the main body 1 squeezes the receiving plate 4, and the receiving plate 4 is forced to drive the first sliding post 41 to move toward the inside of the first fixed post 42, thereby squeezing the second spring 43, and the second spring 43 rebounds, thereby removing part of the force generated by the vibration, thereby achieving a shock absorption effect. The receiving plate 4 is forced to drive the connecting block 64 to move toward the direction close to the slide rod 6, thereby driving the rotating rod 63 to push the slider 62 to move along the slide rod 6 toward the first fixed post 42, thereby squeezing the fourth spring 61, and the fourth spring 61 rebounds and pushes the slider 62 back, thereby removing part of the force generated by the vibration, thereby further achieving a shock absorption effect. The receiving plate 4 is subjected to force to drive the second sliding column 51 to slide towards the inside of the fixed block 5, thereby squeezing the third spring 52. The third spring 52 rebounds, thereby removing part of the force generated by the vibration, thereby further achieving a shock-absorbing effect. The design of multiple sets of receiving plates 4 and base 3 can shock-absorb the force generated on the outside when the main body 1 vibrates, so that the main body 1 can be installed from various directions. The heat dissipation block 7 can accelerate the heat dissipation of the main body 1. The material of the shock-absorbing layer 8 is sponge. The pores in the sponge can disperse and slow down the sound waves, retain a large amount of air, and at the same time make it difficult for the sound waves to transmit in the material, achieving a sound insulation effect. The pore structure of the sponge can absorb the pressure generated by the vibration and has good shock-isolating performance, which can help reduce noise and reduce the vibration of objects. The material of the sound insulation layer 9 is polyurethane foam plastic. Polyurethane foam plastic has good sound insulation and sound absorption performance, and is also anti-corrosive, waterproof and flame retardant, which further enhances the sound insulation effect. Compared with the existing permanent magnet brushless motor, the utility model can improve the overall practicality of the permanent magnet brushless motor through design.
[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A low-noise, vibration-damping permanent magnet brushless motor, comprising a main body (1), characterized in that: The outer side of the main body (1) is provided with a shell (2), and multiple groups of receiving plates (4) are provided on the outer side of the main body (1) and located inside the shell (2). The receiving plates (4) are fixedly connected to a first sliding column (41) at one end away from the main body (1) and located inside the shell (2). A first fixing column (42) is slidably connected to the outer side of the first sliding column (41) and located inside the shell (2). A second spring (43) is provided on the outer side of the first fixing column (42) and located inside the shell (2). Fixed blocks (5) are provided on both sides of the multiple groups of the second springs (43) and located inside the shell (2). The fixed blocks (5) are fixedly connected to a sliding rod (6) at one end away from the second springs (43) in the same row and located inside the shell (2).
2. A low-noise, vibration-reducing permanent magnet brushless motor according to claim 1, characterized in that: A slider (62) is slidably connected to the outside of the slide rod (6) and located inside the housing (2); a fourth spring (61) is provided on the outside of the slide rod (6) and located between the fixed block (5) and the slider (62); one end of the slider (62) close to the receiving disk (4) and located inside the housing (2) is rotatably connected to a rotating rod (63); one end of the rotating rod (63) away from the slider (62) is rotatably connected to a connecting block (64); and the connecting block (64) is fixedly connected to the receiving disk (4).
3. The low-noise, vibration-reducing permanent magnet brushless motor according to claim 2, characterized in that: A second sliding column (51) is slidably connected to one end of the fixed block (5) and close to the receiving plate (4); an end of the second sliding column (51) away from the fixed block (5) is fixedly connected to the receiving plate (4); and a third spring (52) is provided on the outside of the second sliding column (51) and between the fixed block (5) and the receiving plate (4).
4. The low-noise, vibration-reducing permanent magnet brushless motor according to claim 3, characterized in that: The fixed block (5) and the first sliding column (41) are both fixedly connected to a heat dissipation block (7) at one end away from the receiving plate (4) and located inside the housing (2).
5. The low-noise, vibration-reducing permanent magnet brushless motor according to claim 4, characterized in that: A shock-absorbing layer (8) is provided inside the outer shell (2), and the material of the shock-absorbing layer (8) is sponge.
6. The low-noise, vibration-reducing permanent magnet brushless motor according to claim 5, characterized in that: A sound insulation layer (9) is provided inside the shell (2) and at one end of the shock-absorbing layer (8) away from the receiving plate (4). The material of the sound insulation layer (9) is polyurethane foam plastic.
7. The low-noise, vibration-reducing permanent magnet brushless motor according to claim 6, characterized in that: A base (3) is provided at one end of the housing (2) away from the main body (1); a groove (31) is provided on a side of the base (3) close to the main body (1); a support rod (32) is fixedly connected inside the groove (31); a moving rod (33) is slidably connected to the outer side of the support rod (32) and the end away from the base (3); a first spring (34) is provided on the outer side of the moving rod (33) and located inside the groove (31); and a tray (35) is fixedly connected to the end of the moving rod (33) away from the base (3).