Permanent magnet brushless DC motor
A technology of brushless motor and permanent magnet DC, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problems of unguaranteed positioning accuracy, low production efficiency, easy to fall off the output shaft, etc., and achieve convenient transfer , Improve processing efficiency, good induction effect
Inactive Publication Date: 2019-06-11
温岭市豪轩机械有限公司
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Problems solved by technology
[0003] But it still has the following disadvantages: 1. The Hall element and the wiring board are all arranged on the mounting base, and the mounting base is inserted into the magnetic steel base, the installation structure is complicated, and the positioning accuracy cannot be guaranteed; 2. The motor with this structure The rotating shaft is completely located in the motor housing. When outputting, it needs to be connected with an output shaft coaxial with the motor rotating shaft. The output shaft is fixed circumferentially with the motor rotating shaft, and its stability is poor. The output shaft is easy to fall off during operation; 3. The stator core is passed through Several punches are superimposed, the processing difficulty is high, and the production efficiency is low
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[0017] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0018] Such as figure 1 As shown, the permanent magnet brushless DC motor includes a housing 1, a stator 2 and a rotor 3 disposed in the housing 1, the stator 2 is provided with a winding coil 4, the rotor 3 is provided with a rotor magnet 5, and the rotor 3 The front end of the rotating shaft 6 extends out of the housing 1 , and the rear end of the housing 1 is provided with an end cover 7 . Such as figure 1 As shown, the end cover 7 is provided with a magnetic steel base 8, the magnetic steel base 8 has a sensor magnetic steel 9, the rear portion of the magnetic steel base 8 is fixedly connected to the terminal block 10 on the end cover 7, and the terminal plate 10 has a The sensor magnet 9 generates a Hall element 11 ...
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The invention provides a permanent magnet brushless DC motor, belongs to the technical field of motors, and solves the problems that f the existing permanent magnet brushless DC motor is unreasonablein structural design and inconvenient in assembly. The permanent magnet brushless DC motor comprises a casing, and a stator and a rotor disposed in the casing, wherein a winding coil is disposed on the stator, a rotor magnet steel is disposed on the rotor, the front end of the rotating shaft of the rotor extends out of the casing, the rear end of the casing is provided with an end cover, a magnetic steel seat is arranged in the end cover and is provided with a sensor magnetic steel, the rear part of the magnetic steel seat is fixedly connected to a wiring board on the end cover, the wiring board is provided with a Hall element generating an induction with the sensor magnetic steel, and the Hall element is located on the outer side of the sensor magnet steel. The permanent magnet brushlessDC motor has the advantages of reasonable structural design, convenient assembly and the like.
Description
technical field [0001] The invention belongs to the technical field of motors, and relates to a permanent magnet DC brushless motor. Background technique [0002] There are many structures of permanent magnet brushless DC motors, and the permanent magnet brushless DC motor [authorized announcement number: CN 202178695 U] disclosed in the Chinese patent is one of them. It includes a stator and a rotor provided in the motor housing, and the stator Winding coils are arranged on the iron core, the magnetic steel base is fixed on the motor rotating shaft protruding from the end cover, and the sensor magnetic steel is arranged in the magnetic steel base. The magnetic steel seat has a circular retaining ring, the retaining ring and the side wall of the magnetic steel seat are bent, the retaining ring and the side wall of the magnetic steel seat are one piece, the sensor magnetic steel is placed on the inner side of the retaining ring, the sensor The direction of the magnetic force...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K5/04H02K7/00H02K9/06H02K1/12H02K29/08
Inventor 颜明辉
Owner 温岭市豪轩机械有限公司