JPS6025381U - Iron core type flat brushless motor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view of a flat brushless motor with a needle core according to the first embodiment of the present invention, Fig. 2 is a bottom view of the magnet rotor, and Fig. 3 is a view of the stator armature fixedly mounted on the stator yoke. A plan view, FIG. 4 is a developed view of a stator plate consisting of a magnet rotor and an armature coil group, and FIG. 5 is a vertical cross-sectional view of the main parts of a flat brushless motor with iron core according to a second embodiment of the present invention. Fig. 6 is a vertical cross-sectional view of a flat brushless smoke with iron core according to the third embodiment of the present invention, and Fig. 7 is a longitudinal cross-sectional view of the third embodiment of the present invention, which consists of an armature coil with a core and an armature coil without a core. It is a bottom view of a stator armature showing an example.

Claims (1)

[Claims for Utility Model Registration] A 2p (p is a positive integer greater than or equal to 1) magnetic rotor having IN and S magnetic poles alternately, and an opening angle of the radial conductor portion that contributes to the generated torque. In a flat brushless motor having a stator armature consisting of a frame-shaped armature coil group formed approximately equal to the magnetic pole width of the magnet rotor, the armature coil group has a hollow portion within the frame. A stator armature is formed by providing a core having a shape that substantially matches that of the armature coil so as to protrude higher than the armature coil, a printed circuit board is provided on the surface of the stator armature that faces the magnet rotor, and the above-mentioned shape of the printed circuit board is provided. A flat brushless motor with a needle core, characterized in that a position detection element is disposed in a portion facing an armature coil. 2. The needle core according to claim 1, wherein the position detection element is disposed on a printed circuit board surface facing a radial conductor that contributes to the torque generated by the armature coil. type flat brushless motor. 3. The above-mentioned position detection element is arranged on the printed circuit board surface part facing the part interlinked with the radial conductor part that contributes to the generated torque of the armature coil and the circumferential conductor part that does not contribute to the generated torque. A flat brushless motor with a needle core according to claim 2 of the utility model registration claim, characterized in that: 4 The above armature coil group has a small number of sets of two armature coils with cores of the same phase that are 180 degrees symmetrical, and one position per armature coil group. A needle core type flat brushless motor according to any one of claims 1 to 3, which is characterized by using a detection element. 5. The magnet rotor is fixed to one side of a magnet rotor support plate made of a non-magnetic material, and consists of an armature coil group having a core on each of the upper and lower fixed surfaces facing the magnet rotor support plate having the magnet rotor. The needle core type flat brush remoke according to any one of claims 1 to 4 of the claims registered as a utility model, characterized in that a stator armature is provided. 6. A request for utility model registration characterized in that one of the above two stator armatures consists of an armature coil group with a core and one without a core, and the other stator armature consists of an armature coil group with a core. A flat brushless smoke with a needle core according to item 5. 7. The stator armature consisting of a group of armature coils with a core and a group of armature coils without a core is characterized in that armature coils without a core are provided at equal intervals. Needle core flat brushless motor. 8. The needle-core flat brushless smoke according to any one of claims 1 to 7, wherein the armature coil groups are arranged at regular intervals so as not to overlap each other.