KR0124437Y1 - Structure of a shading motor - Google Patents

Abstract

In order to prevent the rotational failure of the motor caused by the direct transmission of the vibration and shock of the set by the direct contact between the mounting surface 56 and the hexagonal nut 55 of the shading motor when the shading motor is mounted, By interposing the housing 52 and the attaching surface 56 between the housing 52 and the attachment surface 56, the vibration and shock in the set can be prevented from being transmitted directly to the shading motor. The noise caused by this can be prevented.

Description

Set mounting structure of shading motor

1 is a partial cross-sectional view showing a dustproof structure when mounting a set of shading motor according to the present invention.

2 is a perspective view of the dustproof member in FIG.

3 is a front view showing a shading motor mounted on a conventional set.

* Explanation of symbols for main parts of the drawings

1: Dustproof member 10: Top protrusion

11: wedge 12: flange portion

13: semi-circular groove 2: insertion groove

20: wedge 21: protrusion

The present invention relates to a set mounting structure of a shading motor, and more particularly, to a set mounting structure of a shading motor that can prevent the rotation of the shading motor and the generation of noise due to the progress of the set when the shading motor is mounted. will be.

In general, a motor is roughly classified into a direct current motor using direct current as a driving power source and an alternating current motor using an alternating current as a drive power source. The basic configuration of a winding type motor is roughly described, and stator coils are wound in a plurality of slots. The rotor in which the coil is wound in a state spaced apart from the stator by a predetermined distance is inserted into the stator, and the rotating shaft penetrating the rotor is supported by a bearing provided in the housing.

Of course, in the case of a DC motor, a commutator and a brush for converting the input AC into DC are further attached.

Here, a so-called shading motor is used in a microwave oven which not only obtains a small output but also requires a small power consumption, and a schematic configuration thereof includes a rotor 51 in the stator yoke 50 as shown in FIG. The bobbin 53, which is inserted and supports the housing 52 to which the bearing (not shown) is attached, is rotated and the magnet wire (not shown), which is the primary excitation coil, is wound on the stator yoke 50. Insertion is fixed.

The operation of the shading motor is a shading coil (not shown), which is a secondary exciting coil in which current excited by a magnet wire (not shown), which is a primary exciting coil, is fixed to the side of the rotor 51 of the stator yoke 50. By supplying with a difference of ½ phase by using to generate a magnetic field to rotate the rotor 51.

Here, the housing 52 is fixed by the usual bolt 54 and the hexagon nut 55, the housing 52 fixed opposite portion of the hexagon nut 55 protruding height of the housing 52 The shading motor is fixed to the set by extending higher to secure the hex nut 55 with the bolt 57 on the attachment surface 56 of the set upon mounting the set of shading motor.

However, attaching the shading motor to the mounting surface 56 of the set using the hexagon nut 55 and the bolts 57 as described above is difficult because the hexagon nut 55 contacts the attachment surface 56. The vibrations and shocks that are transmitted are directly transmitted to the shading motor, so that not only the rotation failure of the motor is generated but also the noise is generated according to the rotation failure.

Therefore, an object of the present invention is to prevent the occurrence of the rotational failure of the motor and the resulting noise caused by the direct contact of the mounting surface and the hexagon nut of the shading motor when the set of the shading motor is directly contacted. It relates to a set mounting structure of a shading motor.

In order to achieve the above object, the present invention is characterized in that the vibration and shock in the set is prevented from being transmitted directly to the shading motor by interposing a dustproof member that can surround the housing between the housing and the attachment surface.

Hereinafter, a preferred embodiment of the present invention with reference to the accompanying drawings.

1 is a cross-sectional view showing the dustproof structure of the shading motor according to the present invention, wherein the dustproof member 1 is covered with the protrusion 58 of the housing 52 in which a bearing (not shown) is mounted. ) Is inserted into the insertion groove (2) formed on the attachment surface 56, and the shading motor and the set are coupled by the hexagon nut 55 and the bolt (57).

When the dustproof member 1 is covered on the housing 52, the hollow dustproof member 1 not only surrounds the protrusion 58, but also the top surface of the dustproof member 1 when inserted into the attachment surface 56 of the set. The protrusion 10 is inserted into the insertion groove 2 and the wedge 11 formed on the upper protrusion 10 is inserted into the wedge groove 20 correspondingly formed in the insertion groove 2 so that the dustproof member 1 is easy. It is not supposed to break away.

In addition, the flange portion 12 formed on the upper projection 10 of the dustproof member 1 is in direct contact with the attachment surface 56 of the set to prevent contact between the shading motor and the attachment surface 56. One antivibration member 1 has a plurality of semicircular grooves 13 formed on the outer circumferential surface of the flange portion 12, as shown in FIG. 2, to engage with the projection 21 correspondingly formed on the attachment surface 56. This prevents the flow of the dustproof member 1.

Insert the upper projection 10 of the dustproof member 1 into the attachment surface 56 of the set (2), the semi-circular groove 13 and the projection 21 is coupled to the lower portion of the flange 12 When the housing 52 is brought into close contact with the hex nut 55 and the bolt 57, and the shading motor is fixed to the attachment surface 56, the vibration of the set is directly applied since the attachment surface 56 and the shading motor are not in direct contact. It is not transmitted to the shading motor.

As described above, the present invention can prevent the rotation failure by preventing vibration and shock of the set from being directly transmitted to the shading motor by interposing a dustproof member between the mounting surface of the set and the housing of the shading motor when the set of the shading motor is mounted. But there is an advantage that can prevent the noise generated by this.

Claims (4)

A shading motor that mounts the shading motor to the set using a hex nut 55 used to secure the housing 52 to the stator yoke 50 and a bolt 57 coupled to it at the attachment surface 56 of the set. In the set mounting structure of the shaping motor, the shading motor and the set attaching surface with the hexagon nut 55 and the bolt 57 are interposed between the set attaching surface 56 and the housing 52 of the shading motor. A set mounting structure of a shading motor, characterized in that 56 is fixed. According to claim 1, wherein the anti-vibration member (1) is inserted into the fixing groove (2) of the set attachment surface 56 is fixed to the upper projection 10, it is formed extended to the attachment surface 56 and Set the mounting structure of the shading motor, characterized in that configured to wrap the protrusion (58) of the housing (52) by direct contact with the flange portion (12). According to claim 2, Wedge 11 is formed on the outer circumferential surface of the upper projection (10) for firm fixing of the insertion groove (2) and the anti-vibration member (1) and the wedge groove (20) in the corresponding insertion groove (2) A shaping motor set mounting structure characterized by forming a). The method according to claim 2, wherein a plurality of semicircular grooves (13) are formed on the outer circumferential surface of the flange portion (12) to prevent the flow of the dustproof member (1), and the projections (21) are formed on the corresponding attachment surface (56). Set mounting structure of the shading motor, characterized in that the configuration.