Outer rotor type brushless direct current motor

Abstract

The invention relates to the technical field of brushless direct-current motors, in particular to an outer rotor type brushless direct-current motor which comprises a motor adjusting structure and a matched adjusting structure, the matched adjusting structure is movably connected with the motor adjusting structure and used for power driving, and the matched adjusting structure is used for buffering and supporting of the motor adjusting structure. Meanwhile, the height of the motor adjusting structure can be adjusted, the motor adjusting structure comprises a stable sleeving part and a motor part, the motor part is movably arranged at the upper end of the center of the stable sleeving part in a sleeving mode, and the stable sleeving part can adjust the height on the motor part for protection and supporting; the matched regulation and control structure comprises an upper disc block, a stable regulation part, a fixed bottom bracket, a spring guide rod and an electric control telescopic rod, the electric control telescopic rod is installed in the center of the fixed bottom bracket, and the upper end of the electric control telescopic rod is connected with the upper disc block in a telescopic mode. Through the arrangement of the structure, the brushless direct current motor can be conveniently driven.

Description

Technical Field

[0001] The invention relates to the technical field of brushless DC motors, in particular to an outer rotor type brushless DC motor. Background Art

[0002] An outer rotor brushless DC motor is an electric motor that converts DC electrical energy into mechanical energy. Its characteristic is that the rotor is installed on the outside of the motor, separated from the drive circuit, while the drive circuit is located inside the motor. This design effectively reduces the air gap of the motor and improves the efficiency of the motor. Structurally, it mainly consists of a fixed stator and a rotatable outer rotor. There are usually several excitation magnets on the stator, and a set of windings and collector brushes are installed on the outer rotor.

[0003] According to Chinese patent publication number CN1059520C, an outer rotor brushless DC motor has a first and second housing with a bottom bearing housing, both of which are formed by metal sheet pressure; a stator support cylinder, which is also formed by metal sheet pressure, is mounted on the bearing housing of the first housing at one end and supports the stator on the outer surface at the other end; the magnet support member of the rotor is formed by electrical thin steel sheet pressure to support the magnet; the freely rotatable shaft is supported on the bearings of the corresponding bearing housings respectively installed in the two housings to firmly support the rotation of the rotor. This motor is simple to assemble, does not need to be fixed by injection to prevent vibration and noise, and is suitable for mass production; At present, the existing outer rotor brushless DC motor is prone to shaking when in use, resulting in unstable driving. At the same time, it is inconvenient to perform buffer support work at the bottom of the motor, which is not conducive to the shock absorption treatment of the bottom of the motor. Therefore, improvements are made to the above problems. Summary of the invention

[0004] In view of the problems in the prior art, the present invention provides an outer rotor type brushless DC motor.

[0005] The technical solution adopted by the present invention to solve the technical problem is: an outer rotor type brushless DC motor comprises a motor adjustment structure and a matching adjustment structure, the matching adjustment structure is movably connected with the motor adjustment structure, the motor adjustment structure is used for power drive, the matching adjustment structure is used for buffer support of the motor adjustment structure, and the height of the motor adjustment structure can be adjusted at the same time; The motor adjustment structure comprises a stable sleeve component and a motor component, wherein the motor component is movably sleeved at the central upper end of the stable sleeve component, and the stable sleeve component can adjust the height on the motor component to provide protective support; The cooperative control structure includes an upper disc block, a stability adjustment component, a fixed bottom bracket, a spring guide rod, and an electric control telescopic rod. An electric control telescopic rod is installed at the center of the fixed bottom bracket. The upper end of the electric control telescopic rod is telescopically connected to the upper disc block. The lower part of the side end of the upper disc block is telescopically connected to the spring guide rod in cooperation. The side end of the spring guide rod is hinged to the stability adjustment component. The upper end of the stability adjustment component is hinged and cooperated with the motor adjustment structure.

[0006] Specifically, the firm socket component includes a bearing ring, a mating collar, a reinforcing ring rod, a connecting bottom frame, a hinge ring, a buffer hydraulic rod, a first connecting rod, a second connecting rod, and a fixed support block. A second connecting rod is fixedly connected to the center of the fixed support block. A buffer hydraulic rod is hinged to the upper end of the second connecting rod. The upper end of the buffer hydraulic rod is fixedly connected to the hinge ring. The center of the hinge ring is hinged to the first connecting rod. A connecting bottom frame is fixedly connected to the side end of the first connecting rod. A mating collar is fixedly connected to the upper end of the connecting bottom frame. A reinforcing ring rod is fixedly connected to the outer peripheral position of the mating collar. A bearing ring is provided at the upper end of the mating collar; The buffer hydraulic rod drives the connecting bottom frame, the mating collar, and the reinforcing ring rod to move through telescoping, changing the position of the bearing ring on the motor component.

[0007] Specifically, the motor component includes a control guide shaft, a reinforcing ring cap, a rotating groove plate, and a rotating ring block. A rotating groove plate is fixedly connected to the upper end of the rotating ring block. A reinforcing ring cap is fixedly connected to the upper end of the rotating groove plate. A control guide shaft is fixedly connected to the upper end of the reinforcing ring cap.

[0008] Specifically, the motor component further includes a magnet, a stator winding, a stator support, a first bearing connection ring, and a second bearing connection ring. A stator support is fixedly connected to the upper center of the second bearing connection ring. The stator winding is wound around the stator support. A first bearing connection ring is rotatably connected to the center of the stator support. A magnet is fixedly connected to the inner peripheral position of the rotating ring block.

[0009] Specifically, the rotating ring block is rotatably connected to the second bearing connecting ring, and the lower end of the control guide shaft is rotatably connected to the first bearing connecting ring. The stator winding is connected to an external power supply through a controller. Through the structural setting of the stable socket component, it is convenient to adjust the protection position. The buffer hydraulic rod can change the height of the connecting chassis and the first connecting rod through telescoping, thereby driving the upper bearing ring and the matching collar to move synchronously, so that the bearing ring is adjusted on the rotating ring block. The bearing ring is rotatably connected to the rotating ring block. When the buffer hydraulic rod telescopes, since the upper end of the buffer hydraulic rod is hinged to the first connecting rod and the lower end of the buffer hydraulic rod is hinged to the second connecting rod, it can change the angle during telescoping to prevent jamming. Moreover, the change in the position of the bearing ring on the rotating ring block can help the rotating ring block to be stably driven, avoiding foreign objects from entering the rotating ring block when the rotating ring block rotates. Through the structural setting of the motor component, it is convenient to carry out the driving work. When the stator winding is energized, it can generate a magnetic field to control the movement of the magnet. The magnet is fixed to the rotating ring block and can drive the rotating ring block to rotate. When the rotating ring block rotates, it drives the control guide shaft, the strengthening ring cap, and the rotating groove piece to rotate, so as to carry out the driving control work through the control guide shaft. Moreover, the lower end of the rotating ring block rotates relative to the second bearing connecting ring to ensure the bottom limit.

[0010] Specifically, the stable adjustment component includes a first connecting hinge shaft, a first docking hinge frame, a second connecting hinge shaft, a buffer hydraulic rod, a third connecting hinge shaft, a fourth connecting hinge shaft, a second docking hinge frame, and a fifth connecting hinge shaft. The side end of the first connecting hinge shaft is hinged with a first docking hinge frame. The center side end of the first docking hinge frame is hinged with a second connecting hinge shaft. The lower part of the side end of the second connecting hinge shaft is hinged with a buffer hydraulic rod. The lower end of the buffer hydraulic rod is hinged with the third connecting hinge shaft. The rear end of the third connecting hinge shaft is fixedly connected with a second docking hinge frame. The lower end of the second docking hinge frame is hinged with a fourth connecting hinge shaft. The upper end of the second docking hinge frame is hinged with the first docking hinge frame through the fifth connecting hinge shaft. Through the structural setting of the cooperative regulation structure, it is convenient to carry out the height adjustment work. The electric control telescopic rod can be actively controlled to change the height of the upper mounting plate block. The stable adjustment component follows the adjustment passively, and at the same time the spring guide rod also follows the adjustment passively to ensure the stability of the adjustment and reduce the transmission of vibration. When the upper mounting plate block moves relative to the fixed bottom bracket, at this time the first docking hinge frame and the second docking hinge frame also move relative to each other. The first docking hinge frame and the second docking hinge frame move relative to each other through the fifth connecting hinge shaft. At this time, the buffer hydraulic rod is passively telescoped and adjusted. Moreover, the upper end of the buffer hydraulic rod cooperates with the second connecting hinge shaft, and the lower end of the buffer hydraulic rod cooperates with the third connecting hinge shaft. It can change the angle during telescoping, so as to achieve the purpose of buffer support and improve the relative stability between the upper mounting plate block and the fixed bottom bracket.

[0011] Specifically, the second docking hinge frame is connected to the spring guide rod through the fourth connecting hinge shaft. The fourth connecting hinge shaft is fixedly connected to the spring guide rod. The upper end of the first connecting hinge shaft is fixedly connected to the fixed support block. The electric control telescopic rod is actively telescoped and adjusted through electric control, and the spring guide rod follows the electric control telescopic rod to be driven for telescopic adjustment.

[0012] Specifically, the upper end of the upper placement disc block is fixedly connected to the second bearing connection ring. The bearing ring is sleeved with the rotating ring block, and the height of the bearing ring is adjusted on the rotating ring block.

[0013] Specifically, the lower end of the fixed support block is fixedly connected to the upper placement disc block. The buffer hydraulic rod is arranged between the first docking hinge frame and the second docking hinge frame. When the first docking hinge frame and the second docking hinge frame move through the fifth connecting hinge shaft, the buffer hydraulic rod is stretched and rotated in cooperation.

[0014] Specifically, there are six connecting bottom frames, hinge rings, buffer hydraulic rods, first connecting rods, second connecting rods and fixed support blocks, which are annularly distributed around the mating collar.

[0015] Advantages of the present invention: First, through the structural setting of the stable socket component, the present invention facilitates the adjustment of the protection position. The buffer hydraulic rod can change the height of the connecting bottom frame and the first connecting rod through telescoping, thereby driving the upper bearing ring and the mating collar to move synchronously, enabling the bearing ring to be adjusted on the rotating ring block. The bearing ring is relatively rotatably connected to the rotating ring block. When the buffer hydraulic rod telescopes, since the upper end of the buffer hydraulic rod is hinged to the first connecting rod and the lower end of the buffer hydraulic rod is hinged to the second connecting rod, the angle can be changed during telescoping to prevent jamming. Moreover, the change in the position of the bearing ring on the rotating ring block can help the rotating ring block to be stably driven, avoiding the entry of external debris onto the rotating ring block when the rotating ring block rotates. Through the structural setting of the motor component, the driving work is facilitated. When the stator winding is energized, a magnetic field can be generated to control the movement of the magnet. The magnet is fixed to the rotating ring block and can drive the rotating ring block to rotate. When the rotating ring block rotates, it drives the control guide shaft, the strengthening ring cap, and the rotating groove piece to rotate, thereby performing the driving control work through the control guide shaft. Moreover, the lower end of the rotating ring block rotates relative to the second bearing connection ring to ensure the bottom limit.

[0016] Second, through the structural arrangement of the cooperative control structure, the present invention facilitates the height adjustment work. The electric control telescopic rod can be actively controlled to change the height of the upper disk block. The stable adjustment component follows the adjustment passively, and at the same time, the spring guide rod also follows the adjustment passively, ensuring the stability of the adjustment and reducing the transmission of vibration. When the upper disk block moves relative to the fixed bottom bracket, the first docking hinge and the second docking hinge also move relatively at this time. The first docking hinge and the second docking hinge perform relative movement through the fifth connecting hinge shaft. At this time, the buffer hydraulic rod is passively telescoped and adjusted, and the upper end of the buffer hydraulic rod is matched with the second connecting hinge shaft, and the lower end of the buffer hydraulic rod is matched with the third connecting hinge shaft. It can change the angle during telescoping, so as to achieve the purpose of buffer support and improve the relative stability between the upper disk block and the fixed bottom bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 Is a perspective view of the main body in the present invention; Figure 2 Is an exploded view of the main body in the present invention; Figure 3 Is a perspective view of the motor adjustment structure in the present invention; Figure 4 Is an exploded view of the motor adjustment structure in the present invention; Figure 5 Is a perspective view of the stable socket component in the present invention; Figure 6 Is a perspective view of the motor component in the present invention; Figure 7 Is an exploded view of the motor component in the present invention; Figure 8 Is a perspective view of the cooperative control structure in the present invention; Figure 9 Is an exploded view of the cooperative control structure in the present invention; Figure 10 Is a perspective view of the stable adjustment component in the present invention.

[0019] In the figure: 1 - Motor adjustment structure, 2 - Cooperative control structure, 3 - Stable socket component, 4 - Motor component, 5 - Bearing ring, 6 - Cooperative sleeve ring, 7 - Reinforcing annular rod, 8 - Connecting chassis, 9 - Hinge ring, 10 - Buffer hydraulic rod, 11 - First connecting rod, 12 - Second connecting rod, 13 - Fixed support block, 14 - Control guide shaft, 15 - Reinforcing ring cap, 16 - Rotating groove piece, 17 - Rotating ring block, 18 - Magnet, 19 - Stator winding, 20 - Stator support, 21 - First bearing connecting ring, 22 - Second bearing connecting ring, 23 - Upper disc block, 24 - Stable adjustment component, 25 - Fixed bottom bracket, 26 - Spring guide rod, 27 - Electrically controlled telescopic rod, 28 - First connecting hinge shaft, 29 - First docking hinge bracket, 30 - Second connecting hinge shaft, 31 - Buffer hydraulic rod, 32 - Third connecting hinge shaft, 33 - Fourth connecting hinge shaft, 34 - Second docking hinge bracket, 35 - Fifth connecting hinge shaft. Detailed implementation mode

[0020] In order to enable those skilled in the art of this technology to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0021] The present invention will be further described below in conjunction with the accompanying drawings.

[0022] Embodiment: As Figure 1-10 shown, the outer-rotor brushless DC motor of the present invention includes a motor adjustment structure 1 and a cooperative control structure 2. The motor adjustment structure 1 is movably connected to the cooperative control structure 2. The motor adjustment structure 1 is used for power drive, and the cooperative control structure 2 is used for the buffer support of the motor adjustment structure 1 and can adjust the height of the motor adjustment structure 1 at the same time; The motor adjustment structure 1 includes a stable socket component 3 and a motor component 4. The upper center of the stable socket component 3 is movably sleeved with the motor component 4. The stable socket component 3 can adjust the height on the motor component 4 for protective support; The cooperative control structure 2 includes an upper disc block 23, a stable adjustment component 24, a fixed bottom bracket 25, a spring guide rod 26 and an electrically controlled telescopic rod 27. The electrically controlled telescopic rod 27 is installed at the center of the fixed bottom bracket 25. The upper end of the electrically controlled telescopic rod 27 is telescopically connected to the upper disc block 23. The lower part of the side end of the upper disc block 23 is telescopically connected in cooperation with the spring guide rod 26. The side end of the spring guide rod 26 is hinged to the stable adjustment component 24, and the upper end of the stable adjustment component 24 is hinged and cooperated with the motor adjustment structure 1.

[0023] The stable socket component 3 includes a bearing ring 5, a mating collar 6, a reinforcing annular rod 7, a connecting chassis 8, a hinged ring 9, a buffer hydraulic rod 10, a first connecting rod 11, a second connecting rod 12 and a fixed support block 13. The center of the fixed support block 13 is fixedly connected to the second connecting rod 12. The upper end of the second connecting rod 12 is hinged with a buffer hydraulic rod 10. The upper end of the buffer hydraulic rod 10 is fixedly connected to a hinged ring 9. The center of the hinged ring 9 is hinged with the first connecting rod 11. The side end of the first connecting rod 11 is fixedly connected to a connecting chassis 8. The upper end of the connecting chassis 8 is fixedly connected to a mating collar 6. The outer peripheral position of the mating collar 6 is fixedly connected to a reinforcing annular rod 7. The upper end of the mating collar 6 is provided with a bearing ring 5; The buffer hydraulic rod 10 drives the connecting chassis 8, the mating collar 6 and the reinforcing annular rod 7 to move by telescoping, changing the position of the bearing ring 5 on the motor component 4.

[0024] The motor component 4 includes a control guide shaft 14, a reinforcing ring cap 15, a rotating groove plate 16 and a rotating ring block 17. The upper end of the rotating ring block 17 is fixedly connected to a rotating groove plate 16. The upper end of the rotating groove plate 16 is fixedly connected to a reinforcing ring cap 15. The upper end of the reinforcing ring cap 15 is fixedly connected to a control guide shaft 14. Through the structural arrangement of the stable socket component 3, it is convenient to adjust the protection position. The buffer hydraulic rod 10 can change the height of the connecting chassis 8 and the first connecting rod 11 by telescoping, thereby driving the upper bearing ring 5 and the mating collar 6 to move synchronously, enabling the bearing ring 5 to be adjusted on the rotating ring block 17. The bearing ring 5 is rotatably connected to the rotating ring block 17. When the buffer hydraulic rod 10 telescopes, since the upper end of the buffer hydraulic rod 10 is hinged with the first connecting rod 11 and the lower end of the buffer hydraulic rod 10 is hinged with the second connecting rod 12, the angle can be changed during telescoping to prevent jamming. Moreover, the change in the position of the bearing ring 5 on the rotating ring block 17 can help the rotating ring block 17 to be stably driven, preventing foreign objects from entering the rotating ring block 17 when the rotating ring block 17 rotates. Through the structural arrangement of the motor component 4, it is convenient to perform the driving work. When the stator winding 19 is energized, a magnetic field can be generated to control the movement of the magnet 18. The magnet 18 is fixed to the rotating ring block 17 and can drive the rotating ring block 17 to rotate. When the rotating ring block 17 rotates, it drives the control guide shaft 14, the reinforcing ring cap 15 and the rotating groove plate 16 to rotate accordingly, thereby performing the driving control work through the control guide shaft 14. Moreover, the lower end of the rotating ring block 17 rotates relative to the second bearing connecting ring 22 to ensure the bottom limit.

[0025] The motor component 4 further includes a magnet 18, a stator winding 19, a stator support 20, a first bearing connection ring 21 and a second bearing connection ring 22. The upper center of the second bearing connection ring 22 is fixedly connected to the stator support 20. The stator winding 19 is wound and arranged on the stator support 20. The center of the stator support 20 is rotatably connected to the first bearing connection ring 21. A magnet 18 is fixedly connected to the inner circumferential position of the rotating ring block 17. When the control buffer hydraulic rod 10 extends, the upper end of the buffer hydraulic rod 10 is hinged to the first connecting rod 11 through the hinge ring 9, and the lower end of the buffer hydraulic rod 10 is hinged to the second connecting rod 12. When the buffer hydraulic rod 10 extends, it can change the heights of the bearing ring 5, the mating sleeve ring 6, the reinforcing ring rod 7 and the connecting chassis 8, so that the bearing ring 5 moves on the rotating ring block 17 and reaches the top position, enabling efficient protection work. And the rotating ring block 17 can rotate within the bearing ring 5. Then the user energizes the stator winding 19. The energized stator winding 19 generates a magnetic field, which acts on the magnet 18, causing the magnet 18 to rotate under the action of magnetic force, driving the rotating ring block 17, the rotating groove piece 16, the reinforcing ring cap 15 and the control guide shaft 14 to rotate as a whole. And the lower end of the control guide shaft 14 is connected through the first bearing connection ring 21, and the lower end of the rotating ring block 17 rotates relative to the second bearing connection ring 22. The rotation of the upper end of the control guide shaft 14 can perform the driving task.

[0026] The rotating ring block 17 is rotatably connected to the second bearing connection ring 22, and the lower end of the control guide shaft 14 is rotatably connected to the first bearing connection ring 21. The stator winding 19 is connected to an external power supply through a controller.

[0027] The stable adjustment component 24 includes a first connecting hinge shaft 28, a first docking hinge bracket 29, a second connecting hinge shaft 30, a buffer hydraulic rod 31, a third connecting hinge shaft 32, a fourth connecting hinge shaft 33, a second docking hinge bracket 34, and a fifth connecting hinge shaft 35. A first docking hinge bracket 29 is hinged to the side end of the first connecting hinge shaft 28. A second connecting hinge shaft 30 is hinged to the center side end of the first docking hinge bracket 29. A buffer hydraulic rod 31 is hinged to the lower part of the side end of the second connecting hinge shaft 30. The lower end of the buffer hydraulic rod 31 is hinged to the third connecting hinge shaft 32. The rear end of the third connecting hinge shaft 32 is fixedly connected to a second docking hinge bracket 34. A fourth connecting hinge shaft 33 is hinged to the lower end of the second docking hinge bracket 34. The upper end of the second docking hinge bracket 34 is hinged to the first docking hinge bracket 29 through the fifth connecting hinge shaft 35. Through the structural setting of the cooperation control structure 2, it is convenient to carry out the height adjustment work. The electric control telescopic rod 27 can be actively controlled to change the height of the upper disc block 23. The stable adjustment component 24 follows the adjustment passively. At the same time, the spring guide rod 26 also follows the adjustment passively to ensure the stability of the adjustment and reduce the transmission of vibration. When the upper disc block 23 moves relative to the fixed bottom bracket 25, at this time, the first docking hinge bracket 29 and the second docking hinge bracket 34 also move relatively. The first docking hinge bracket 29 and the second docking hinge bracket 34 move relatively through the fifth connecting hinge shaft 35. At this time, the buffer hydraulic rod 31 is telescopically adjusted passively. The upper end of the buffer hydraulic rod 31 cooperates with the second connecting hinge shaft 30, and the lower end of the buffer hydraulic rod 31 cooperates with the third connecting hinge shaft 32. It can change the angle when telescoping, so as to achieve the purpose of buffer support and improve the relative stability between the upper disc block 23 and the fixed bottom bracket 25.

[0028] The second docking hinge frame 34 is connected to the spring guide rod 26 through the fourth connecting hinge shaft 33. The fourth connecting hinge shaft 33 is fixedly connected to the spring guide rod 26. The upper end of the first connecting hinge shaft 28 is fixedly connected to the fixed support block 13. The electric control telescopic rod 27 actively adjusts its telescopic length through electric control. The spring guide rod 26 follows the electric control telescopic rod 27 to passively adjust its telescopic length. The height is adjusted through the cooperation control structure 2. At this time, the electric control telescopic rod 27 can actively adjust its telescopic length through control, changing the height position of the upper disc block 23. At this time, the spring guide rod 26 follows passively and cooperates to adjust its telescopic length. At the same time, a stability adjustment component 24 is provided at the side end of the spring guide rod 26. The upper end of the stability adjustment component 24 is connected to the upper disc block 23 through the fixed support block 13 and can also move passively, improving the stability of the movement. When the upper disc block 23 and the fixed bottom bracket 25 move relative to each other, the first docking hinge frame 29 and the second docking hinge frame 34 can move relative to each other. The first docking hinge frame 29 and the second docking hinge frame 34 are hinged through the fifth connecting hinge shaft 35. At the same time, the upper end of the first docking hinge frame 29 is hinged to the fixed support block 13 through the first connecting hinge shaft 28, and the lower end of the second docking hinge frame 34 is hinged to the spring guide rod 26 through the fourth connecting hinge shaft 33. When the first docking hinge frame 29 and the second docking hinge frame 34 move relative to each other, it can drive the buffer hydraulic rod 31 to stretch accordingly. The buffer hydraulic rod 31 can play a role in buffer protection. The upper end of the buffer hydraulic rod 31 is hinged to the first docking hinge frame 29 through the second connecting hinge shaft 30, and the lower end of the buffer hydraulic rod 31 is hinged to the second docking hinge frame 34 through the third connecting hinge shaft 32, and can also adjust the angle during the telescopic cooperation to achieve the purpose of buffer protection.

[0029] The upper end of the upper disc block 23 is fixedly connected to the second bearing connection ring 22. The bearing ring 5 is sleeved on the rotating ring block 17, and the bearing ring 5 adjusts its height on the rotating ring block 17.

[0030] The lower end of the fixed support block 13 is fixedly connected to the upper disc block 23. The buffer hydraulic rod 31 is arranged between the first docking hinge frame 29 and the second docking hinge frame 34. When the first docking hinge frame 29 and the second docking hinge frame 34 move through the fifth connecting hinge shaft 35, the buffer hydraulic rod 31 cooperates to rotate and stretch.

[0031] There are six connecting bottom frames 8, hinge rings 9, buffer hydraulic rods 10, first connecting rods 11, second connecting rods 12 and fixed support blocks 13, which are annularly distributed about the cooperation sleeve ring 6.

[0032] The working principle is as follows: When in use, the user first adjusts the height by cooperating with the adjustment structure 2. At this time, the electric telescopic rod 27 can actively perform telescopic adjustment through control, changing the height position of the upper disc block 23. At this time, the spring guide rod 26 follows passively and cooperates with the telescopic adjustment. At the same time, a stable adjustment component 24 is provided at the side end of the spring guide rod 26. The upper end of the stable adjustment component 24 is connected to the upper disc block 23 through a fixed support block 13 and can also move passively, improving the stability of the movement. When the upper disc block 23 and the fixed bottom bracket 25 move relatively, at this time, the first docking hinge 29 and the second docking hinge 34 can move relatively. The first docking hinge 29 and the second docking hinge 34 are hinged through a fifth connecting hinge shaft 35. At the same time, the upper end of the first docking hinge 29 is hinged to the fixed support block 13 through a first connecting hinge shaft 28, and the lower end of the second docking hinge 34 is hinged to the spring guide rod 26 through a fourth connecting hinge shaft 33. When the first docking hinge 29 and the second docking hinge 34 move relatively, it can drive the buffer hydraulic rod 31 to stretch accordingly. The buffer hydraulic rod 31 can play a role in buffering and protecting. And the upper end of the buffer hydraulic rod 31 is hinged to the first docking hinge 29 through a second connecting hinge shaft 30, and the lower end of the buffer hydraulic rod 31 is hinged to the second docking hinge 34 through a third connecting hinge shaft 32, which can also adjust the angle during the telescopic cooperation to achieve the purpose of buffer protection. After determining the position of the motor adjustment structure 1, the control guide shaft 14 can be connected to the driving device. At this time, the user controls the buffer hydraulic rod 10 to extend. The upper end of the buffer hydraulic rod 10 is hinged to the first connecting rod 11 through a hinge ring 9, and the lower end of the buffer hydraulic rod 10 is hinged to the second connecting rod 12. When the buffer hydraulic rod 10 extends, it can change the height of the bearing ring 5, the mating sleeve ring 6, the reinforcing ring rod 7, and the connecting bottom frame 8, so that the bearing ring 5 moves on the rotating ring block 17 to reach the top position, enabling efficient protection work. And the rotating ring block 17 can rotate within the bearing ring 5. Then the user energizes the stator winding 19. When the stator winding 19 is energized, a magnetic field is generated, which acts on the magnet 18, causing the magnet 18 to rotate under the action of the magnetic force, driving the rotating ring block 17, the rotating groove piece 16, the reinforcing ring cap 15, and the control guide shaft 14 to rotate as a whole. And the lower end of the control guide shaft 14 is connected through a first bearing connection ring 21, and the lower end of the rotating ring block 17 rotates relative to the second bearing connection ring 22. When the upper end of the control guide shaft 14 rotates, it can perform the driving task and complete the work.

[0033] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Outer rotor brushless DC motor, characterized in that: It comprises a motor adjustment structure (1) and a matching adjustment structure (2), wherein the matching adjustment structure (2) is movably connected to the motor adjustment structure (1), the motor adjustment structure (1) is used for power driving, and the matching adjustment structure (2) is used for buffering support of the motor adjustment structure (1), and can also adjust the height of the motor adjustment structure (1); The motor adjustment structure (1) comprises a stable sleeve component (3) and a motor component (4); the motor component (4) is movably sleeved on the central upper end of the stable sleeve component (3); and the stable sleeve component (3) can be adjusted in height on the motor component (4) to provide protective support; The cooperative control structure (2) comprises an upper disk block (23), a stable adjustment component (24), a fixed bottom bracket (25), a spring guide rod (26) and an electrically controlled telescopic rod (27); the electrically controlled telescopic rod (27) is installed at the center of the fixed bottom bracket (25); the upper end of the electrically controlled telescopic rod (27) is telescopically connected to the upper disk block (23); the lower part of the side end of the upper disk block (23) is telescopically connected to the spring guide rod (26); the side end of the spring guide rod (26) is hingedly arranged with the stable adjustment component (24); and the upper end of the stable adjustment component (24) is hingedly matched with the motor adjustment structure (1).

2. The outer rotor type brushless DC motor according to claim 1, characterized in that: The stable sleeve component (3) comprises a bearing ring (5), a matching sleeve ring (6), a reinforcing annular rod (7), a connecting frame (8), a hinge ring (9), a buffering hydraulic rod (10), a first connecting rod (11), a second connecting rod (12) and a fixed support block (13); the center of the fixed support block (13) is fixedly connected to the second connecting rod (12); the upper end of the second connecting rod (12) is hingedly provided with a buffering hydraulic rod (10); the upper end of the buffering hydraulic rod (10) is fixedly connected to the hinge ring (9); the center of the hinge ring (9) is hingedly provided with the first connecting rod (11); the side end of the first connecting rod (11) is fixedly connected to the connecting frame (8); the upper end of the connecting frame (8) is fixedly connected to the matching sleeve ring (6); the outer periphery of the matching sleeve ring (6) is fixedly connected to the reinforcing annular rod (7); the upper end of the matching sleeve ring (6) is provided with a bearing ring (5); The buffer hydraulic rod (10) drives the connecting base frame (8), the matching ring (6), and the reinforcing annular rod (7) to move by extending and retracting, thereby changing the position of the bearing ring (5) on the motor component (4).

3. The outer rotor type brushless DC motor according to claim 2, characterized in that: The motor component (4) comprises a control guide shaft (14), a reinforcing ring cap (15), a rotating slot sheet (16) and a rotating ring block (17); the upper end of the rotating ring block (17) is fixedly connected to the rotating slot sheet (16); the upper end of the rotating slot sheet (16) is fixedly connected to the reinforcing ring cap (15); and the upper end of the reinforcing ring cap (15) is fixedly connected to the control guide shaft (14).

4. The outer rotor type brushless DC motor according to claim 3, characterized in that: The motor component (4) further comprises a magnet (18), a stator winding (19), a stator support (20), a first bearing connecting ring (21) and a second bearing connecting ring (22); the central upper end of the second bearing connecting ring (22) is fixedly connected to the stator support (20); the stator winding (19) is wound around the stator support (20); the center of the stator support (20) is rotatably connected to the first bearing connecting ring (21); and the inner circumference of the rotating ring block (17) is fixedly connected to the magnet (18).

5. The outer rotor type brushless DC motor according to claim 4, characterized in that: The rotating ring block (17) is rotatably connected to the second bearing connecting ring (22), and the lower end of the control guide shaft (14) is rotatably connected to the first bearing connecting ring (21), and the stator winding (19) is connected to an external power supply through a controller.

6. The outer rotor type brushless DC motor according to claim 5, characterized in that: The stabilizing and adjusting component (24) comprises a first connecting hinge (28), a first butt hinge (29), a second connecting hinge (30), a buffering hydraulic rod (31), a third connecting hinge (32), a fourth connecting hinge (33), a second butt hinge (34) and a fifth connecting hinge (35), wherein the first connecting hinge (28) is hingedly provided with the first butt hinge (29) at the side end, the second butt hinge (30) is hingedly provided at the center side end, the second butt hinge (39) is hingedly provided with the buffering hydraulic rod (31) at the lower part of the side end of the second connecting hinge (30), the lower end of the buffering hydraulic rod (31) is hingedly provided with the third connecting hinge (32), the rear end of the third connecting hinge (32) is fixedly connected with the second butt hinge (34), the lower end of the second butt hinge (34) is hingedly provided with the fourth connecting hinge (33), and the upper end of the second butt hinge (34) is hingedly provided with the first butt hinge (29) via the fifth connecting hinge (35).

7. The outer rotor type brushless DC motor according to claim 6, characterized in that: The second butt hinge (34) is connected to the spring guide rod (26) via a fourth connecting hinge shaft (33); the fourth connecting hinge shaft (33) is fixedly connected to the spring guide rod (26); the upper end of the first connecting hinge shaft (28) is fixedly connected to the fixed support block (13); the electrically controlled telescopic rod (27) is actively telescopically adjusted by electrical control; and the spring guide rod (26) is passively telescopically adjusted following the electrically controlled telescopic rod (27).

8. The outer rotor type brushless DC motor according to claim 7, characterized in that: The upper end of the upper disk block (23) is fixedly connected to the second bearing connection ring (22), the bearing ring (5) is sleeved with the rotating ring block (17), and the height of the bearing ring (5) is adjusted on the rotating ring block (17).

9. The outer rotor type brushless DC motor according to claim 8, characterized in that: The lower end of the fixed support block (13) is fixedly connected to the upper disk block (23), and the buffer pressure rod (31) is arranged between the first butt hinge frame (29) and the second butt hinge frame (34). When the first butt hinge frame (29) and the second butt hinge frame (34) move through the fifth connecting hinge shaft (35), the buffer pressure rod (31) cooperates with the rotation and stretching.

10. The outer rotor type brushless DC motor according to claim 9, characterized in that: The connecting base frame (8), the hinge ring (9), the buffer pressure rod (10), the first connecting rod (11), the second connecting rod (12) and the fixed support block (13) are provided in six pieces and are arranged in an annular distribution with respect to the matching sleeve ring (6).

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