Motor

Abstract

Provided is a motor which is thinned by improving the structure of a section for feeding a driving coil with power. In a motor (1), a stator (2) is provided with substrate holding sections (231, 241) for holding a power feeding substrate (7) in substantially vertical posture to a motor shaft line direction. On the power feeding substrate (7), land sections (71a, 71b), to which coil terminals (618, 619, 628, 629) of driving coils (61, 62) are connected, are formed. Thus, a terminal block is not required, and a structure for firmly fixing a terminal pin to the terminal block for processing the coil terminal is not required.

Description

[0001] The patent application for this invention is a divisional application of the invention patent application with the international application number PCT / JP2007 / 000798, the international application date is July 26, 2007, the application number entering the Chinese national phase is 200780029185.7, and the name is "electric motor". technical field [0002] The present invention relates to a structure of a motor, in particular to a structure for supplying power to a drive coil, a bearing structure for a rotating shaft, a structure for the drive coil, a power supply structure for the drive coil, and a structure for a stator. Background technique [0003] In electric motors, as a structure for connecting the winding end of the driving coil to the outside, a method has been proposed in which the winding end is wound around a terminal pressed into a resin bobbin or integrally formed with the resin bobbin and the terminal is connected to the resin bobbin. Structure of external...

AI Technical Summary

Problems solved by technology

[0011] However, in the conventional structure in which the winding end of the drive coil is connected to the outside, if the resin bobbin with the terminal integrally formed thereon is arranged on the motor as a component for connecting to the outside, the motor will increase the number of connections with the bobbin. The corresponding thickness of the thickness, therefore, it is difficult to realize the thinning of the motor

[0012] In addition, in a motor using a conventional bearing mechanism in which radial bearings and thrust bearings are separately arranged as the bearing mechanism, since the radial bearings and thrust bearings are arranged separately in the axial direction, it is difficult to reduce the thickness and size of the motor.

In addition, if the ball bearing disclosed in Patent Document 2 is used, since the bearing itself is large, it is difficult to reduce the thickness and size of the motor, and the structure is complicated and the price is high.

[0013] In addition, in the structure of the conventional driving coil, the starting end of the winding overlaps the end surface of the air-core coil, so the thickness of the driving coil increases corresponding to the wire diameter of the starting end of the winding, which hinders the thinning of the motor.

In addition, if the winding initial end overlaps with the end surface of the air-core coil, when the drive coil is mounted on the motor, it is easy to cause disconnection due to excessive force on the drive coil or the initial winding end. As a result, the structure of the motor is complicated, and it is difficult to reduce the thickness of the motor

[0014] In addition, it is difficult to reduce the thickness of the motor because the winding start end and the winding end end are connected to the terminal fixed to the thick resin bobbin.

[0015] In addition, like the structure of the conventional stator, the first pole teeth formed on one stator core are formed to be shorter than the second pole teeth formed on the other stator core, and the first pole teeth and the second pole teeth may be separated. When the second end plate portion of the other stator core approaches, it is used as a countermeasure to suppress the leakage flux between the first pole teeth and the second end plate portion of the other stator core. However, to suppress the leakage flux, it is necessary to The first pole tooth is greatly shortened, and as a result, a sufficient magnetic field cannot be formed, and the torque decreases

Images