TWM588915U - Sensor magnet fixing structure for motor - Google Patents

Abstract

A sensor magnet fixing structure of a motor, a motor includes a stator and a rotor, wherein the rotor is installed in the stator, and a mandrel is installed in the rotor; the sensor magnet fixing structure of the motor The utility model is characterized in that a fixing seat is arranged at one end of the mandrel, a magnet is arranged in the fixing seat, and the magnet is combined with the fixing seat by means of embedding, and the fixing seat is fixed on the mandrel.

Description

Magnetic sensor magnet fixing structure of motor

This creation is about a motor, especially a sensor magnet fixing structure of a motor.

As shown in FIG. 1, a motor 30 includes a stator 31 and a rotor 32. A mandrel 33 is installed in the rotor 32. A fixed seat 34 is provided at one end of the mandrel 33, and a magnet 35 is provided on the fixed seat 34. The sensor 36 is disposed on the stator 31 and is arranged corresponding to the position of the magnet 35. The sensor 36 is used to sense the change of the magnetic force of the magnet 35 to thereby know the current rotation position of the rotor 32.

The magnet 35 is generally fixed to the fixing base 34 by adhesive, and then the fixing base 34 is fixed to the mandrel 33. The magnet 35 is fixed by adhesion. When the motor 30 is rotating, the magnet 35 may loosen or even come off, and The magnet 35 is exposed to the outside, which reduces its life and reliability.

Based on the above reasons, there is still room for improvement in the conventional technology. In view of this, the creator is actively researching, adding years of experience in the development of related products, and after continuous experimentation and improvement, this creation has finally been developed.

The main purpose of this creation is to provide a magnetic sensor magnet binding The structure is combined with the fixing base in a buried form, so that the magnet can be firmly fixed in the fixing base, and the life and reliability of the magnet are improved.

In order to achieve the above purpose, the present invention provides a sensor magnet fixing structure of a motor. A motor includes a stator and a rotor, wherein the rotor is installed in the stator, and a mandrel is installed in the rotor The sensor magnet fixing structure of the motor is characterized in that: a fixing seat is provided at one end of the mandrel, a magnet is arranged in the fixing seat, and the magnet is combined with the fixing seat by way of embedding and forming, the fixing The seat is then fixed on the mandrel.

Generally, the motor also has a sensor, which is provided corresponding to the position of the magnet, and the sensor is used to sense the change of the magnetic force of the magnet, thereby obtaining the current rotation position of the rotor.

In this creation, the shape of the magnet is a geometric shape, such as a circle, a square, and a polygon, etc. In this creation, a circle is taken as a preferred embodiment for illustration.

In order to further understand the characteristics and technical content of this creation, please refer to the following detailed description and drawings related to this creation. However, the drawings are for reference and explanation only, and are not intended to limit the creation.

(This creation)

10‧‧‧Motor

11‧‧‧ Stator

12‧‧‧Rotor

13‧‧‧mandrel

20‧‧‧Fixed seat

21‧‧‧Magnet

(Conventional Technology)

30‧‧‧Motor

31‧‧‧ Stator

32‧‧‧Rotor

33‧‧‧mandrel

34‧‧‧Fixed seat

35‧‧‧Magnet

36‧‧‧Sensor

FIG. 1 is a schematic diagram of the conventional technology.

Figure 2 is a perspective view of the creation and motor.

Figure 3 is a perspective cross-sectional view of the creation and the motor.

Figure 4 is an exploded perspective view of the creation and motor.

FIG. 5 is a perspective cross-sectional view of the magnet fixing structure of the sensor of the creation motor.

Fig. 6 is a perspective view of an embodiment of the created magnet.

Fig. 7 is a perspective view of another embodiment of the created magnet.

Please refer to FIGS. 2 to 5, FIG. 2 is a perspective view of the creation and motor, FIG. 3 is a perspective sectional view of the creation and motor, FIG. 4 is a perspective exploded view of the creation and motor, and FIG. 5 is a view of the creation motor A three-dimensional cross-sectional view of a sensor magnet fixing structure. This creation relates to a sensor magnet fixing structure for a motor. A motor 10 includes a stator 11 and a rotor 12, wherein the rotor 12 is installed in the stator 11, and a mandrel 13 is installed in the rotor 12. in.

The magnet fixing structure of the sensor of the motor is characterized in that: a fixing base 20 is provided at one end of the mandrel 13, and a magnet 21 is provided in the fixing base 20, and the magnet 21 is embedded into the fixing base 20, the fixing seat 20 is fixed on the mandrel 13 again.

Generally, the motor 10 also has a sensor (not shown in the figure), which is provided corresponding to the position of the magnet 21, and the sensor is used to sense the change of the magnetic force of the magnet 21, so as to know the current rotor 12 Turning position.

Please refer to FIGS. 6 to 7. FIG. 6 is a perspective view of an embodiment of the created magnet, and FIG. 7 is a perspective view of another embodiment of the created magnet. In this creation, the shape of the magnet 21 may be a geometric shape, such as a circle, a square, and a polygon. The creation is described by taking the circle as the preferred embodiment; in particular, the square or polygon The magnet 21 can avoid rotational displacement during positioning.

With the magnet fixing structure of the sensor of the original motor, it is combined with the fixing base in a buried form, so that the magnet can be firmly fixed in the fixing base, and the life and reliability of the magnet are improved.

The above-mentioned embodiments are only examples for the convenience of description, and the scope of the rights claimed in this creation should be subject to the scope of the patent application, and not limited to the above-mentioned embodiments.

Although this creation has been disclosed as above with the preferred embodiment, it is not used to limit this creation. Anyone who is familiar with this technology can make some changes and retouching without departing from the spirit and scope of this creation, so this creation The scope of protection shall be deemed as defined by the scope of the attached patent application.

13‧‧‧mandrel

20‧‧‧Fixed seat

21‧‧‧Magnet

Claims (3)

A sensor magnet fixing structure of a motor, a motor includes a stator and a rotor, wherein the rotor is installed in the stator, and a mandrel is installed in the rotor; the sensor magnet fixing structure of the motor The utility model is characterized in that a fixing seat is arranged at one end of the mandrel, a magnet is arranged in the fixing seat, and the magnet is combined with the fixing seat by means of embedding, and the fixing seat is fixed on the mandrel. The magnet fixing structure of the sensor of the motor according to claim 1, wherein the magnet has a round shape. The magnet fixing structure of the sensor of the motor according to claim 1, wherein the magnet has a square shape.

Images