KR19980035176U - Flat DC DC Rectifier Motor - Google Patents

Abstract

The present invention relates to a flat DC non-commutator motor, the pulley is fixed to the upper end of the rotating shaft for transmitting power to the outside, the rotor is coupled to the drive magnet in which the magnetic pole alternately magnetized, the coil opposed to the drive magnet In the conventional flat DC direct current rectifier motor including the stator to be disposed, the pulley coupled to the rotor and the driving magnet are integrally formed.

Therefore, the DC non-commutator motor according to the above configuration has the effect of reducing the cost by simplifying the work process and reducing the number of parts by integrally molding the pulley and the driving magnet coupled to the pulley.

Description

Flat DC DC Rectifier Motor

The present invention relates to a flat DC non-commutator motor, and more particularly, to a flat DC non-commutator motor which can simplify the work process and reduce the cost by integrally manufacturing a pulley and a driving magnet.

In general, the flat DC non-commutator motor, which rotates at a desired speed and provides power to external devices, has been required to be reduced in size according to the trend of miniaturization of electronic products.

As shown in FIG. 1, the configuration of a flat DC non-rectifier motor used in a conventional capstan motor for a VCR includes a printed circuit board 54 mounted with a plurality of electronic components 66 and used as a stator. In addition, the rotary shaft 56 penetrates the printed circuit board 54 and is positioned in the vertical direction, and the rotary shaft 56 is inserted and simultaneously screwed to the printed circuit board 54 so that the rotation of the rotary shaft 56 is rotated. A tubular housing 60 in which a bearing 58 is internally installed, and a plurality of coils 64 which are upper surfaces of the printed circuit board 54 and fixedly fixed at predetermined angles about the rotation shaft 56. And a pulley 50 fixed to an upper end of the rotary shaft 56 to transmit power to the outside, and wrapped around a lower portion of the outer circumferential surface of the pulley 50 and at the same time parallel to the printed circuit board 54 and having a circumferential surface. Circularly flanged downwards Electromagnetic yoke 52, a circular drive magnet 62 fixed to the lower surface of the rotor yoke 52 so as to face in the direction of the coil 64 and the rotary shaft 56, and the rotor yoke ( And a rotor composed of an FG magnet 68 for generating an output signal arranged by alternating magnetization on the flange outer surface of the flange 52).

In the flat DC non-commutator motor configured as described above, when power is applied to the coil 64, a rotational force is generated between the driving magnet 62 and the rotation shaft 56 and the rotor yoke 52 are rotated. By transmitting power to the outside through the pulley (50).

However, the flat DC non-commutator motor having the above-described configuration has a problem in that the assembly process is complicated and the cost of the product is increased due to the separate assembly of the pulley and the driving magnet for transmitting the rotational force.

Therefore, the present invention has been devised in view of the above problems, and its purpose is to form a pulley and a driving magnet integrally to manufacture a flat type that can reduce the cost of the product by simplifying the work process and reducing the number of parts. To provide a direct current rectifier motor.

1 is a half sectional view showing a flat DC non-commutator motor according to the prior art.

2 is a partial cross-sectional view showing a rotor of a flat DC non-commutator motor in the prior art;

Figure 3 is a half cross-sectional view showing the inside of the flat DC non-commutator motor of the present invention

4 is a cross-sectional view showing that the rotor and the driving magnet of the present invention are integrated.

In order to achieve the above object, the flat DC non-commutator motor according to the present invention is fixed to the upper end of the rotating shaft and a pulley for transmitting power to the outside, and the rotor is coupled to the driving magnet in which the magnetic poles are alternately magnetized, the driving In the conventional flat DC non-commutator motor comprising a stator in which a coil opposed to a magnet is disposed, the pulley coupled to the rotor and the driving magnet are integrally formed.

Accordingly, the flat DC non-commutator motor according to the above configuration can be manufactured by integrally molding the pulley and the driving magnet coupled to the pulley to reduce the cost by simplifying the work process and reducing the number of parts.

EXAMPLE

Hereinafter, a preferred embodiment of the flat DC non-commutator motor according to the present invention will be described with reference to FIGS. 3 and 4.

Figure 3 is a half cross-sectional view showing the inside of the flat DC non-commutator motor of the present invention, Figure 4 is a cross-sectional view showing that the rotor and the driving magnet of the present invention is integrated.

For the configuration having the same function as the conventional configuration, the same name and the same reference numerals are used together, and detailed description thereof will be omitted in the configuration description of the present invention in order to avoid the confusing description.

As shown in FIG. 3, the flat DC non-commutator motor according to the present invention penetrates the printed circuit board 4 and the printed circuit board 4, which are used as a stator while mounting a plurality of electronic components 16. And the rotary shaft 6 positioned in the vertical direction, and the rotary shaft 6 is inserted and screwed to the printed circuit board 4 and the bearing 8 is internally installed to facilitate the rotation of the rotary shaft 6. A plurality of coils 14 which are upper surfaces of the housing 10, the printed circuit board 4, and fixedly fixed at intervals of a predetermined angle about the rotation shaft 6, and an upper end of the rotation shaft 6. A pulley (1) that is fixed and transmits power to the outside, and is wrapped around the lower portion of the outer circumference of the pulley (1) and at the same time, is a circular rotor parallel to the printed circuit board (4) and flanged downward along the circumferential surface Yoke (2), the coil (14) and the rotary shaft (6) Circular drive magnets fixed to the lower surface of the rotor yoke 2 so as to face in the direction of (and a magnet for FG generating an output signal arranged by alternating magnetization in multiple poles on the outer surface of the flange of the rotor yoke). In this case, the pulley is fixed to the upper end of the rotating shaft for transmitting power to the outside, and the injection molding of the circular drive magnet fixed to the lower surface of the rotor yoke so as to face in the direction of the coil and the rotating shaft integrally injection molding Insert it into the rotating shaft and fix it to enable rotation.

As described above, the flat DC non-commutator motor of the present invention includes a pulley fixed to an upper end of the rotating shaft and transmitting power to the outside, and fixed to the lower surface of the rotor yoke such that the coil and the rotating shaft face each other. The injection molding of the circular drive magnet is integrated, so there is an excellent effect to simplify the work process and reduce the cost.

Claims (1)

A conventional flat type comprising a pulley fixed to the upper end of the rotating shaft for transmitting power to the outside, a rotor coupled with a driving magnet in which magnetic poles are alternately magnetized, and a stator having a coil facing the driving magnet. In direct current rectifier motor, Flat DC non-commutator motor, characterized in that for integrally molding the pulley and the driving magnet coupled to the rotor.