CN110932481A - Permanent magnet servo motor with built-in axial Hall circuit board - Google Patents
Permanent magnet servo motor with built-in axial Hall circuit board Download PDFInfo
- Publication number
- CN110932481A CN110932481A CN201911315313.5A CN201911315313A CN110932481A CN 110932481 A CN110932481 A CN 110932481A CN 201911315313 A CN201911315313 A CN 201911315313A CN 110932481 A CN110932481 A CN 110932481A
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- China
- Prior art keywords
- permanent magnet
- hall
- circuit board
- servo motor
- built
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/16—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K5/161—Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields radially supporting the rotary shaft at both ends of the rotor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2211/00—Specific aspects not provided for in the other groups of this subclass relating to measuring or protective devices or electric components
- H02K2211/03—Machines characterised by circuit boards, e.g. pcb
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention belongs to the technical field of application of permanent magnet servo motors, and particularly discloses a permanent magnet servo motor with a built-in axial Hall circuit board, which comprises a stator shell, a front end cover, a first high-speed bearing and a second high-speed bearing which are respectively arranged at two ends of a cavity formed by the stator shell and the front end cover, an output rotating shaft, a winding iron core, a Hall PCB (printed circuit board), Hall detection magnetic steel and rotor rare earth magnetic steel, wherein the output rotating shaft, the Hall detection magnetic steel and the rotor rare earth magnetic steel are arranged in the cavity formed by the stator shell and the front end cover and are matched with each other for use, one end of the output rotating shaft penetrates through the second high-speed bearing and protrudes out of the front end cover. The permanent magnet servo motor with the built-in axial Hall circuit board has the beneficial effects that: the braking device has reasonable design, accurate and stable running performance and reliable running, can meet the requirement of safe and efficient running power, can provide enough braking force for braking the aircraft, and can brake and stop the aircraft within the specified sliding distance.
Description
Technical Field
The invention belongs to the technical field of application of permanent magnet servo motors, and particularly relates to a permanent magnet servo motor with an internal axial Hall circuit board.
Background
An Electric machine (also known as "motor") refers to an electromagnetic device that converts or transmits Electric energy according to the law of electromagnetic induction. The motor is represented by a letter M (old standard is represented by a letter D) in a circuit, the motor mainly plays a role of generating driving torque and serving as a power source of electrical appliances or various machines, the generator is represented by a letter G in a circuit, and the generator mainly plays a role of converting mechanical energy into electric energy.
A servo motor (servo motor) is an engine that controls the operation of mechanical elements in a servo system, and is a kind of auxiliary motor indirect speed change device. The permanent magnet motor servo motor adopts the permanent magnet to generate the magnetic field of the motor, does not need an excitation coil or an excitation current, has high efficiency and simple structure, and is a good energy-saving motor.
The permanent magnet servo motor with the existing structure, such as a permanent magnet servo brake motor in an electric brake device of a landing frame, cannot provide enough braking force for airplane braking, cannot brake an airplane within a specified sliding distance, and cannot meet the use requirement of high-standard occasions.
Based on the problems, the invention provides a permanent magnet servo motor with an internal axial Hall circuit board.
Disclosure of Invention
The purpose of the invention is as follows: the permanent magnet servo motor is reasonable in design, has accurate and stable running performance and reliable running, can meet the requirements of safe and efficient running power, can provide enough braking force for airplane braking, and can brake the airplane within a specified sliding distance.
The technical scheme is as follows: the invention provides a permanent magnet servo motor with a built-in axial Hall circuit board, which comprises a stator shell, a front end cover, a first high-speed bearing and a second high-speed bearing which are respectively arranged at two ends of a cavity formed by the stator shell and the front end cover, an output rotating shaft, a winding iron core, a Hall PCB, Hall detection magnetic steel and rotor rare earth magnetic steel, wherein the output rotating shaft is arranged in the cavity formed by the stator shell and the front end cover and is matched with the cavity, one end of the output rotating shaft penetrates through the second high-speed bearing and protrudes out of the front end cover, and the Hall PCB is arranged on the inner wall of one end of the stator shell and is positioned at one side of the.
This technical scheme, the front end housing sets up to notch cuttype boss structure, and the diameter size is 14mm, 30mm, 45mm respectively, and the overall structure length size of stator casing, front end housing, output pivot is 78.5mm, and the main aspects diameter size of stator casing is 50 mm.
According to the technical scheme, the thickness of the Hall detection magnetic steel is 2mm, and the length of the rotor rare earth magnetic steel is 30 mm.
Compared with the prior art, the permanent magnet servo motor with the built-in axial Hall circuit board has the beneficial effects that: the braking device has reasonable design, accurate and stable running performance and reliable running, can meet the requirement of safe and efficient running power, can provide enough braking force for braking the aircraft, and can brake and stop the aircraft within the specified sliding distance.
Drawings
Fig. 1 is a schematic structural diagram of a permanent magnet servo motor with an internal axial hall circuit board according to the present invention.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Examples
The permanent magnet servo motor with the built-in axial Hall circuit board shown in figure 1 comprises a stator shell 2, a front end cover 3, and a first high-speed bearing 5 and a second high-speed bearing 9 which are respectively arranged in the two ends of a cavity formed by the stator shell 2 and the front end cover 3, as well as an output rotating shaft 4 which is arranged in the cavity formed by the stator shell 2 and the front end cover 3 and is matched with the cavity for use, a winding iron core 1, a Hall PCB board 6, Hall detection magnetic steel 7 and rotor rare earth magnetic steel 8, wherein one end of the output rotating shaft 4 penetrates through the second high-speed bearing 9 and protrudes out of the front end cover 3, and the Hall PCB board 6 is arranged on the inner wall of one end of the stator shell 2 and is positioned on one side.
Preferably, the front end cover 3 is of a stepped boss structure, the diameters of the front end cover 3 are respectively 14mm, 30mm and 45mm, the overall structural length of the stator casing 2, the front end cover 3 and the output rotating shaft 4 is 78.5mm, and the diameter of the large end of the stator casing 2 is 50 mm; and the thickness of the Hall detection magnetic steel 7 is 2mm, and the length of the rotor rare earth magnetic steel 8 is 30 mm.
The permanent magnet servo motor with the built-in axial Hall circuit board has reasonable design, accurate and stable running performance and reliable running, can meet the requirements of safe and efficient running power, can provide enough braking force for airplane braking, and can brake and stop the airplane within a specified sliding distance.
In the permanent magnet servo motor with the built-in axial Hall circuit board, a comprehensive control unit (a motor controller) demodulates a direct current power supply into a square wave power supply in a PWM mode during working, and the square wave power supply is transmitted to the motor at a required frequency, the motor generates a corresponding rotating speed according to the transmission frequency, and generates required torque according to square wave pulse width; 3 Hall devices on a Hall plate in the motor convert the rotating speed of the motor into Hall switching frequency to be fed back to a comprehensive control unit, the comprehensive control unit judges the position of a magnetic pole according to the Hall switching state and judges the rotating speed of the motor according to the switching frequency; the larger the pulse width of the square wave given by the PWM mode is, the larger the motor torque is, the higher the given frequency is, and the higher the motor rotating speed is; under the control of the comprehensive control unit, the motor drives the speed reducer to rotate to push the brake disc to brake, and the speed reducer can amplify the output torque of the motor by multiple times according to the speed reduction ratio.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (3)
1. Permanent magnet servo motor of built-in axial hall circuit board, its characterized in that: including stator casing (2), front end housing (3), and set up respectively in stator casing (2), first high speed bearing (5) in the cavity both ends that front end housing (3) constitutes, second high speed bearing (9), and set up at stator casing (2), output pivot (4) that just cooperate to use in the cavity that front end housing (3) constitutes, there is winding iron core (1), hall PCB board (6), hall detection magnet steel (7), rotor tombarthite magnet steel (8), wherein, second high speed bearing (9) are run through and front end housing (3) are outstanding to the one end of output pivot (4), hall PCB board (6) set up at stator casing (2) one end inner wall and are located first high speed bearing (5) one side.
2. The permanent magnet servo motor with the built-in axial Hall circuit board of claim 1, wherein: front end housing (3) set up to notch cuttype boss structure, and the diameter size is 14mm, 30mm, 45mm respectively, and the overall structure length size of stator casing (2), front end housing (3), output pivot (4) is 78.5mm, and the main aspects diameter size of stator casing (2) is 50 mm.
3. The permanent magnet servo motor with the built-in axial Hall circuit board of claim 1, wherein: the thickness dimension of the Hall detection magnetic steel (7) is 2mm, and the length dimension of the rotor rare earth magnetic steel (8) is 30 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315313.5A CN110932481A (en) | 2019-12-19 | 2019-12-19 | Permanent magnet servo motor with built-in axial Hall circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911315313.5A CN110932481A (en) | 2019-12-19 | 2019-12-19 | Permanent magnet servo motor with built-in axial Hall circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110932481A true CN110932481A (en) | 2020-03-27 |
Family
ID=69864419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911315313.5A Pending CN110932481A (en) | 2019-12-19 | 2019-12-19 | Permanent magnet servo motor with built-in axial Hall circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110932481A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6395838A (en) * | 1986-10-08 | 1988-04-26 | Shibaura Eng Works Co Ltd | Electric motor |
| CN2638325Y (en) * | 2003-08-14 | 2004-09-01 | 贵州华烽电器有限公司 | Inner rotor permanent-magnetic brushless dc motor |
| CN105763014A (en) * | 2016-04-07 | 2016-07-13 | 温州的可电器有限公司 | Micro brushless DC motor |
-
2019
- 2019-12-19 CN CN201911315313.5A patent/CN110932481A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6395838A (en) * | 1986-10-08 | 1988-04-26 | Shibaura Eng Works Co Ltd | Electric motor |
| CN2638325Y (en) * | 2003-08-14 | 2004-09-01 | 贵州华烽电器有限公司 | Inner rotor permanent-magnetic brushless dc motor |
| CN105763014A (en) * | 2016-04-07 | 2016-07-13 | 温州的可电器有限公司 | Micro brushless DC motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |