External rotor permanent magnetic direct drive servo motor
A technology of servo motor and permanent magnet direct drive, which is applied to synchronous motors with stationary armatures and rotating magnets, electrical components, electromechanical devices, etc., which can solve the problems of limited motor installation conditions and large motor height, and achieve height reduction And volume, reduce the effect of the overall height
Active Publication Date: 2017-09-29
SHENZHEN EAST SERVO CONTROL CO LTD
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide an outer rotor permanent magnet direct drive servo motor aiming at the above-mentioned defects of the prior art, aiming to solve the problem in the prior art that the height of the motor is large and the installation conditions of the motor are limited
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[0022] In order to make the object, technical solution and advantages of the present invention more clear and definite, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] figure 1 It is a structural schematic diagram of a preferred embodiment of the outer rotor permanent magnet direct drive servo motor of the present invention.
[0024] Such as figure 1 As shown, the outer rotor permanent magnet direct drive servo motor (which may be referred to as the motor for short) in this embodiment includes: a rotor assembly, a stator assembly and a connecting assembly. In a further preferred embodiment, the motor is composed of and only composed of three, That is, except for three components, it does not contain any other components. Of course, the connec...
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The present invention discloses an external rotor permanent magnetic direct drive servo motor. The motor comprises a rotor module and a stator module. The rotor module comprises an upper end cover, external rotor fixedly connected with the lower end surface of the upper end cover and a rotation shaft, and a magnet is fixed at the inner side of the external rotor. The stator module comprises: a winding, a bearing pedestal and a bearing which are arranged between the magnet and the rotation shaft in order from outside to inside, the lower end of the bearing pedestal is fixedly connected with a motor pedestal, the upper end surface of the motor pedestal is provided with a code disc read head, and the lower end surface of the rotation shaft is adaptive to the code disc read head and is provided with an axial reflection photoelectric encoder. The external rotor permanent magnetic direct drive servo motor can employ the bearing built in the motor to realize the whole height of the motor; and the cooperation of the axial reflection photoelectric encoder and the code disc read head allow the axial reflection photoelectric encoder to be made to plate shape so as to provide leeway for further reduction of the height and the volume.
Description
technical field [0001] The invention relates to the technical field of permanent magnet synchronous motors, in particular to an outer rotor permanent magnet direct drive servo motor. Background technique [0002] In the prior art, the outer rotor permanent magnet direct drive servo motor generally has the following two structures: one is that the rotor is outside and the stator is inside; the other is that the stator is outside and the rotor is outside and inside. The outer rotor permanent magnet direct drive servo motor with outer rotor structure is supported by cross roller bearings. The cross roller bearings are installed on the upper end of the motor, which increases the height of the motor and limits the installation conditions of the motor. [0003] Therefore, the prior art still needs to be improved and developed. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an outer rotor permanent magnet direct-drive...
Claims
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IPC IPC(8): H02K21/22H02K5/173H02K5/124H02K11/22
CPCH02K5/124H02K5/173H02K11/22H02K21/22Y02T10/64
Inventor 孙文林樊桂生
Owner SHENZHEN EAST SERVO CONTROL CO LTD