CN108233608B - Permanent magnet motor device integrating lossless automatic braking - Google Patents
Permanent magnet motor device integrating lossless automatic braking Download PDFInfo
- Publication number
- CN108233608B CN108233608B CN201810238472.9A CN201810238472A CN108233608B CN 108233608 B CN108233608 B CN 108233608B CN 201810238472 A CN201810238472 A CN 201810238472A CN 108233608 B CN108233608 B CN 108233608B
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- Prior art keywords
- brake
- flat key
- end cover
- braking
- magnetic
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
Abstract
The invention discloses a permanent magnet motor device integrating lossless automatic braking, which comprises a flat key shaft, wherein the left side and the right side of the flat key shaft are respectively connected with a front end cover and a rear end cover; a stretched aluminum shell is connected between the front end cover and the rear end cover; the middle part of the flat key shaft is provided with a magnetic steel rotor core; rotor magnetic steel is arranged in the magnetic steel rotor core; the inner wall of the stretching aluminum shell is provided with a winding stator core; the coil end of the winding stator core is connected with an outgoing thread sleeve; the inner side of the rear end cover is connected with a brake stator core through a bolt; the right side of the flat key shaft is connected with a brake rotor magnetic yoke; the brake rotor magnetic yoke is positioned at the inner side of the rear end cover; a plurality of braking magnetic steels are connected to the braking rotor magnetic yoke in an annular array mode; the invention automatically generates braking force when the motor stops running and loses electricity, locks the motor flat key shaft, does not need any electric energy, has no energy consumption, and greatly saves the electric energy of an electric braking device for braking the flat key shaft.
Description
Technical Field
The invention relates to the field of energy equipment, in particular to a permanent magnet motor device integrating lossless automatic braking.
Background
The motor can be self-locked and can not rotate in the places and the situation that the motor is required to stop; for example, a steering driving device of a solar panel requires that the solar lighting panel can rotate along with the change of the irradiation direction of the sun; however, the driving device of the solar daylighting panel stops running at night without solar irradiation, but the wind at night is sometimes quite large, and if the self-locking braking device is not provided, the solar panel can be blown or even damaged; therefore, a braking device is required to be added to the driving device of the motor; in general, electromagnetic braking devices are often adopted as the braking devices, so that the energy consumption is high and the reliability is poor.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide the permanent magnet motor device which has simple structure, good reliability and practicability and is integrated with lossless automatic braking.
The invention is realized by the following modes:
the utility model provides an integrated harmless self-braking's permanent magnet motor device which characterized in that: the device comprises a flat key shaft, wherein the left side and the right side of the flat key shaft are respectively connected with a front end cover and a rear end cover through a front bearing and a rear bearing; a stretched aluminum shell is connected between the front end cover and the rear end cover; a magnetic steel rotor core is arranged in the middle of the flat key shaft; rotor magnetic steel is arranged in the magnetic steel rotor core; the inner wall of the stretching aluminum shell is provided with a winding stator core; the magnetic steel rotor core is matched with the winding stator core; the coil end of the winding stator core is connected with an outgoing line screw sleeve arranged on the stretching aluminum shell through a stator outgoing line;
the inner side of the rear end cover is connected with a brake stator core through a bolt; a brake rotor magnetic yoke is connected to the right side of the flat key shaft; the brake rotor magnetic yoke is positioned at the inner side of the rear end cover; a plurality of braking magnetic steels are connected to the braking rotor magnetic yoke in an annular array mode; the braking magnetic steel is matched with the stator core of the brake to form a braking effect; the N-pole magnetic force line of the brake magnetic steel passes through the salient pole of the stator core of the brake and goes through the shortest path of the magnetic circuit, namely the central line of the salient pole of the stator core, and returns to the S pole of the brake magnetic steel; the central line of the S pole of the brake magnetic steel and the central line of the salient pole of the brake stator core are arranged on the same central line, and the magnetic resistance is minimum at the moment; twelve pairs of closed magnetic circuits are formed by adjacent braking magnetic steels and salient poles of the stator iron core, so that a path with minimum magnetic resistance of the shortest magnetic circuit is formed, and the maximum braking resistance torque is generated.
Further, the brake magnetic steel is connected with the brake rotor magnetic yoke through a dovetail groove, and is firmly bonded by using strong magnetic steel glue.
Further, one end of the flat key shaft penetrates through the front end cover, and a flat key is connected to the flat key shaft penetrating through the front end cover.
Further, a sealing ring is arranged between the connecting part of the front end cover and the flat key shaft.
Further, the brake stator core comprises a brake stator core body, the brake stator core body is annular, and a plurality of brake stator cores are arranged on the inner side of the brake stator core body in an annular array mode; the brake stator iron core is matched with the brake magnetic steel; and the brake stator core body is provided with a mounting hole.
The invention has the beneficial effects that: when the motor stops rotating and loses electricity, the braking force is automatically generated, the flat key shaft of the motor is locked, the generated braking force does not need any electric energy, no energy consumption exists, and the electric energy for braking the flat key shaft by adopting an electric braking device is greatly saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of a stator core structure of the brake of the present invention.
Detailed Description
The technical scheme of the invention is further specifically described below through specific embodiments and with reference to the accompanying drawings. It should be understood that the embodiments of the present invention are not limited to the following examples, and that any modifications and/or changes made to the present invention will fall within the scope of the present invention.
Examples:
the permanent magnet motor device integrating lossless automatic braking comprises a flat key shaft 1, wherein the left side and the right side of the flat key shaft 1 are respectively connected with a front end cover 5 and a rear end cover 17 through a front bearing 4 and a rear bearing 18; a stretched aluminum shell 10 is connected between the front end cover 5 and the rear end cover 17, and the connection mode can adopt a riveting or welding mode; the middle part of the flat key shaft 1 is fixedly connected with a magnetic steel rotor core 9, such as interference fit; rotor magnetic steel 8 is arranged in the magnetic steel rotor core 9 in an inserting mode or in a fixed connection mode; the inner wall of the stretching aluminum shell 10 is provided with a winding stator core 7 in a welding or clamping way; the magnetic steel rotor core 9 is matched with the winding stator core 7 to generate electric power; the coil end 6 of the winding stator core 7 is connected with an outgoing thread insert 12 arranged on the stretching aluminum shell 10 through a stator outgoing thread 11, and is further electrically connected with external equipment; the inner side of the rear end cover 17 is connected with a brake stator core 13 through a bolt 16; the right side of the flat key shaft 1 is connected with a brake rotor magnetic yoke 15 in a fixed connection mode or a riveting or welding mode; the brake rotor yoke 15 is positioned on the inner side of the rear end cover 17; a plurality of braking magnetic steels 14 are connected to the braking rotor magnet yoke 15 in a ring array mode; the braking magnetic steel 14 is matched with the brake stator iron core 13 to form a braking effect; the N pole magnetic force line of the brake magnetic steel 14 passes through the salient pole of the brake stator core 13 and goes through the shortest path of the magnetic circuit, namely the central line of the salient pole of the stator core 13, and returns to the S pole of the brake magnetic steel 14; the center line of the S pole of the brake magnetic steel 14 and the center line of the salient pole of the brake stator core 13 are on the same center line, and the magnetic resistance is minimum at the moment; twelve pairs of closed magnetic circuits are formed by adjacent braking magnetic steels 14 and salient poles of the stator core 13, so that a path with minimum magnetic resistance of the shortest magnetic circuit is formed, and the maximum braking torque is generated.
In the embodiment, the brake magnetic steel 14 is connected with the brake rotor yoke 15 through a dovetail groove, and is firmly bonded by using strong magnetic steel glue, so that the brake rotor yoke is convenient to install and fix.
In this embodiment, one end of the flat key shaft 1 passes through the front end cover 5, and the flat key 2 is connected to the flat key shaft 1 passing through the front end cover 5, so that the flat key shaft 1 is convenient to connect with an external device.
In the embodiment, a sealing ring 3 is arranged between the connecting part of the front end cover 5 and the flat key shaft 1 to prevent sundries from entering the stretched aluminum shell 10.
In this embodiment, as shown in fig. 2, the brake stator core 13 includes a brake stator core body 131, the brake stator core body 131 is annular, and a plurality of brake stator cores 132 are arranged on the inner side of the brake stator core body in an annular array manner; the brake stator core 132 is matched with the brake magnetic steel 14; the brake stator core body 131 is provided with a mounting hole 133 for mounting and fixing.
The embodiment achieves the braking effect by automatically rotating to the path with the minimum magnetic resistance by using the permanent magnet. When the motor stops running, the N pole of the brake magnetic steel 14 rotates to the position with the minimum magnetic resistance, the central line of the S pole of the brake magnetic steel 14 and the central line of the salient pole of the stator core 13 of the brake are positioned on the same central line, the magnetic resistance at the moment is minimum, twelve pairs of closed magnetic circuits are formed between the adjacent brake magnetic steels 14 and the salient pole of the stator core 13, so that a path with the minimum magnetic resistance of the shortest magnetic circuit is formed, and the maximum brake resistance torque is generated; the device has the greatest advantages that the motor is stopped and loses electricity, the braking force is automatically generated, the flat key shaft of the motor is locked, the generated braking force does not need any electric energy, no energy consumption exists, and the electric energy of an electric braking device for braking the flat key shaft is greatly saved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (1)
1. The utility model provides an integrated harmless self-braking's permanent magnet motor device which characterized in that: the flat key comprises a flat key shaft (1), wherein the left side and the right side of the flat key shaft (1) are respectively connected with a front end cover (5) and a rear end cover (17) through a front bearing (4) and a rear bearing (18); a stretching aluminum shell (10) is connected between the front end cover (5) and the rear end cover (17); a magnetic steel rotor core (9) is arranged in the middle of the flat key shaft (1); rotor magnetic steel (8) is arranged in the magnetic steel rotor iron core (9); the inner wall of the stretching aluminum shell (10) is provided with a winding stator core (7); the magnetic steel rotor core (9) is matched with the winding stator core (7); the coil end (6) of the winding stator core (7) is connected with an outgoing thread screw sleeve (12) arranged on the stretching aluminum shell (10) through a stator outgoing thread (11);
the inner side of the rear end cover (17) is connected with a brake stator core (13) through a bolt (16); a brake rotor magnetic yoke (15) is connected to the right side of the flat key shaft (1); the brake rotor magnet yoke (15) is positioned on the inner side of the rear end cover (17); a plurality of braking magnetic steels (14) are connected to the braking rotor magnet yoke (15) in a ring array mode; the brake magnetic steel (14) is matched with the brake stator core (13) to form a braking effect; when the motor stops running, the N-pole magnetic force lines of the brake magnetic steel (14) pass through the salient poles of the brake stator iron core (13) and take the shortest path of the magnetic circuit, namely the central line of the salient poles of the brake stator iron core (13) and return to the S pole of the brake magnetic steel (14); the central line of the S pole of the brake magnetic steel (14) and the central line of the salient pole of the brake stator core (13) are on the same central line, and the magnetic resistance is minimum at the moment; twelve pairs of closed magnetic circuits are formed by adjacent braking magnetic steels (14) and salient poles of a stator core (13) of the brake, so that a path with minimum magnetic resistance of the shortest magnetic circuit is formed, the maximum braking resistance torque is generated, the motor stops running and loses electricity, braking force is automatically generated, and a motor flat key shaft (1) is locked;
the brake magnetic steel (14) is connected with the brake rotor magnetic yoke (15) through a dovetail groove, and is firmly bonded by using strong magnetic steel glue;
one end of the flat key shaft (1) passes through the front end cover (5), and the flat key shaft (1) passing through the front end cover (5) is connected with a flat key (2), so that the flat key shaft (1) is convenient to connect with an external device;
a sealing ring (3) is arranged between the front end cover (5) and the joint of the flat key shaft (1) to prevent sundries from entering the stretched aluminum shell (10);
the brake stator iron core (13) comprises a brake stator iron core body (131), the brake stator iron core body (131) is annular, and a plurality of brake stator iron cores (132) are arranged on the inner side of the brake stator iron core body in an annular array mode; the brake stator iron core (132) is matched with the brake magnetic steel (14); and the brake stator core body (131) is provided with a mounting hole (133).
Priority Applications (1)
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CN201810238472.9A CN108233608B (en) | 2018-03-22 | 2018-03-22 | Permanent magnet motor device integrating lossless automatic braking |
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CN201810238472.9A CN108233608B (en) | 2018-03-22 | 2018-03-22 | Permanent magnet motor device integrating lossless automatic braking |
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CN108233608A CN108233608A (en) | 2018-06-29 |
CN108233608B true CN108233608B (en) | 2023-09-15 |
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CN106849503A (en) * | 2017-04-06 | 2017-06-13 | 宁德时代电机科技有限公司 | A kind of permanent-magnetic outer rotor motor of the built-in fan blade of the high-power nodal wood type of small volume |
CN206481194U (en) * | 2017-03-03 | 2017-09-08 | 福建亚南电机有限公司 | A kind of permanent magnetism double stators and double rotors high torque density hub motor device |
CN206727827U (en) * | 2017-04-06 | 2017-12-08 | 宁德时代电机科技有限公司 | The permanent-magnetic outer rotor motor of fan blade built in a kind of high-power nodal wood type of small volume |
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CN1161764A (en) * | 1994-09-22 | 1997-10-08 | 扬丘·伦古 | Electronically switched reluctance motor |
CN1214809A (en) * | 1995-03-21 | 1999-04-21 | 宗德能源系统公司 | Double-salient permanent-magnet machine |
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TW200810325A (en) * | 2006-08-14 | 2008-02-16 | Delta Electronics Inc | Motor with air bearing structure |
JP2008109842A (en) * | 2006-09-25 | 2008-05-08 | Nissan Motor Co Ltd | Rotary electric machine with parking lock function |
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CN204030739U (en) * | 2013-07-05 | 2014-12-17 | 三菱电机株式会社 | Electric blower and electric vacuum cleaner |
WO2015018083A1 (en) * | 2013-08-09 | 2015-02-12 | 深圳市配天电机技术有限公司 | Birotor motor as well as fan and compressor using same |
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CN103457429A (en) * | 2013-08-28 | 2013-12-18 | 日立电梯电机(广州)有限公司 | Inner rotor permanent magnet synchronous magnetic resistance type traction drive device |
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CN104150330A (en) * | 2014-07-28 | 2014-11-19 | 苏州发源地科技发展有限公司 | Magnetic-resistance type toothless elevator traction machine |
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WO2018028487A1 (en) * | 2016-08-10 | 2018-02-15 | 赵红伟 | Driving structure for rear wheel of hybrid motorcycle |
CN206481194U (en) * | 2017-03-03 | 2017-09-08 | 福建亚南电机有限公司 | A kind of permanent magnetism double stators and double rotors high torque density hub motor device |
CN106803710A (en) * | 2017-04-06 | 2017-06-06 | 宁德时代电机科技有限公司 | A kind of extra small high-power density permanent magnetic external rotor motor device of volume |
CN106849503A (en) * | 2017-04-06 | 2017-06-13 | 宁德时代电机科技有限公司 | A kind of permanent-magnetic outer rotor motor of the built-in fan blade of the high-power nodal wood type of small volume |
CN206727827U (en) * | 2017-04-06 | 2017-12-08 | 宁德时代电机科技有限公司 | The permanent-magnetic outer rotor motor of fan blade built in a kind of high-power nodal wood type of small volume |
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