TWI552492B - A counterweight structure of a synchronous motor - Google Patents

Description

Weight structure suitable for synchronous motors

The present invention relates to a synchronous motor, and more particularly to a counterweight structure suitable for use in a synchronous motor.

In today's society, motors are indispensable equipments in terms of industry or people's livelihood. In recent years, the technology of motors has also changed with each passing day. There are many types of motors on the market. Compared with other modern motors, synchronous motors rotate with their rotors and stators. The magnetic field is synchronously rotated, so there is no induced current and no secondary copper loss, so it has the advantages of high energy conversion efficiency, simple process, no need to invest a large amount of money to purchase processing equipment, and low production cost.

However, the rotor of the synchronous motor is prone to eccentricity, dynamic balance deviation, etc. In order to overcome this problem, the industry has developed several ways of weighting. As shown in Fig. 1, the rotor 90 is composed of a body 91 and a through-body. The main body 91 has a first end surface 911 and a second end surface 912. The first end surface 911 extends to the second end surface 912 in an axial direction A. A plurality of long-shaped perforations 93 are formed in the axial direction A of the main body 91, and a plurality of connecting portions 94 are formed between the perforations 93. The weight is conventionally created by the connecting portion 94 on the heavier side of the main body 91. The weight 95 is thereby balanced by the weight of the body 91 as a whole, but in this manner, the structure of the rotor 90 is easily weakened, and the risk of damage is greatly increased.

Moreover, as shown in FIG. 2, in another conventional weighting manner, the user adheres a balance soil B to one side of the body 91, thereby increasing the weight to balance the weight of the rotor 90. When applied to harsh environments such as high temperature, low temperature, high humidity and high speed, it is easy to make the balance soil B fall off from the rotor 90, which greatly reduces the reliability and shortens the life of the motor.

The invention provides a weight structure suitable for a synchronous motor, and the main purpose thereof is to provide a weight structure suitable for a synchronous motor that avoids damaging the motor structure and is convenient and effective.

To achieve the foregoing objective, the present invention provides a weight structure suitable for a synchronous motor, which is provided with a rotor mounted on a synchronous motor, the rotor being composed of a body and a main shaft penetrating the body, the body having a first end surface and a second end surface, and the weight structure suitable for the synchronous motor, comprising: a second pressing member coupled to the first end surface and the second end surface of the body, the pressing member has a shaft hole, the main shaft of the rotor is disposed in the shaft hole, the pressing member has a first side surface and a second side surface and a circumferential surface connecting the first side surface and the second side surface, the first side pair The body of the rotor, the second side or the circumferential surface has at least one weight.

It can be seen from the foregoing that the weighting structure of the present invention is mainly applied to the weighting structure of the synchronous motor, mainly because the first end surface and the second end surface of the body of the rotor are respectively combined with the pressing member, and then the pressing member is adjusted according to requirements to be correspondingly heavy. Or the weight portion of the lighter side, if the weight of the rotor is one of the heavier sides, adjust the weight portion to reduce the weight of the pressing member on one side of the heavier weight, if the weight of the rotor is lighter than one side, Adjusting the weight portion increases the weight of the pressing member on one side of the lighter weight to achieve the effect of the weight, thereby achieving a weight-reducing structure suitable for the synchronous motor that is convenient and effective to avoid damage to the motor structure.

"Knowledge Technology"

90‧‧‧Rotor

91‧‧‧Ontology

911‧‧‧ first end

912‧‧‧ second end

92‧‧‧ Spindle

93‧‧‧Perforation

94‧‧‧Connecting Department

95‧‧‧weight hole

A‧‧‧Axial

B‧‧‧ Balanced soil

"this invention"

10‧‧‧Rotor

11‧‧‧Ontology

111‧‧‧ first end face

112‧‧‧second end face

12‧‧‧ Spindle

20‧‧‧ Pressing parts

21‧‧‧Axis hole

22‧‧‧ first side

23‧‧‧ second side

24‧‧‧circular surface

25‧‧‧With weight department

251‧‧‧weight bumps

252‧‧‧ accommodating holes

253‧‧‧With heavy holes

254‧‧‧weight ring groove

C‧‧‧First weight

D‧‧‧Second weight

X‧‧‧ axial

Y‧‧‧ piercing

Z‧‧‧ permanent magnet

Figure 1 is a schematic diagram of a conventional synchronous motor counterweight.

Figure 2 is a schematic diagram of a conventional synchronous motor counterweight.

3 is a schematic view of a weight structure and a synchronous motor suitable for a synchronous motor according to the present invention.

Figure 4 is a perspective view of a first embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 5 is a perspective view of a second embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 6 is a perspective view of a third embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 7 is a perspective view of a third embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 8 is a perspective view of a fourth embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 9 is a perspective view of a fifth embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

Figure 10 is a perspective view of a sixth embodiment of a weight structure suitable for use in a synchronous motor of the present invention.

In order to enable the reviewing committee to have a better understanding and understanding of the purpose, features and functions of the present invention, the following is a detailed description of the following: The present invention provides a weighting structure suitable for a synchronous motor, as shown in FIG. As shown in FIG. 10, it is provided with a rotor 10 mounted on a synchronous motor. The rotor 10 is composed of a main body 11 and a main shaft 12 penetrating the main body 11, and the main body 11 has a first one. The end surface 111 and a second end surface 112, the first end surface 111 extends to the second end surface 112 in an axial direction X, and the body 11 has an axial length X opening a plurality of elongated through holes Y, at least one of the through holes Y The first end face 111 of the body 11 is coupled to the first end face 111 of the body 11 and the second press-fit member 20 is respectively formed into a disk shape. a second end surface 112, the pressing member 20 has a shaft hole 21, and the main shaft 12 of the rotor 10 The first side surface 22 and the second side surface 23 and the circumferential surface 24 of the first side surface 22 and the second side surface 23 are connected to the first side surface 22 and the second side surface 23, the first side surface 22 facing the body 11 of the rotor, the second side 23 or the circumferential surface 24 has at least one weight portion 25.

In the first embodiment of the present invention, as shown in FIG. 4, the weight portion 25 is at least two weighting protrusions 251, and the weighting protrusions 251 are disposed on the second side surface 23, and the weighting protrusions 251 are The weight is 2 to 10. Preferably, the weight bumps 251 are arranged at equal intervals. The user removes the weighting protrusions 251 corresponding to one side of the body 11 by removing the pressing member 20 to achieve a matching. Heavy effect.

In the second embodiment of the present invention, as shown in FIG. 5 , the weight portion 25 is at least two receiving holes 252 and at least one first weight C, and the receiving hole 252 is defined in the second side 23 . The accommodating hole 252 is disposed on the first weight C, and the first weight C is placed on the accommodating hole 252 of the pressing member 20 corresponding to one side of the body 11 to achieve a weight. For example, the receiving holes 252 are arranged at equal intervals. Preferably, the receiving holes 252 extend through the pressing member 20.

In the third embodiment of the present invention, as shown in FIG. 6 and FIG. 7 , the weight portion 25 is at least one weight hole 253 , and the weight hole 253 is formed in the pressing member 20 corresponding to the body 11 . On one side, the weight hole 253 can be opened on the second side surface 23 or the circumferential surface 24 to reduce the weight of the pressing member 20 on the side of the weight hole 253 to achieve the weight.

In the fourth embodiment of the present invention, as shown in FIG. 8 , the weight portion 25 is a weight ring groove 254 and a second weight D. The weight ring groove 254 is formed in the pressing member 20 . The second side 23, the weight ring groove 254 is disposed on the second weight D, and the second weight D is placed on one side of the pressing member 20 corresponding to the body 11 to achieve the weight. effect.

In the fifth embodiment of the present invention, as shown in FIG. 9 , the weight portion 25 is the plurality of receiving holes 252 , the first weight C and at least two of the weight bumps 251 , and the receiving holes 252 . Opened on the second side The accommodating hole 252 is disposed on the first weight C, and the weight 251 is disposed on the second side 23, and at the same time, the pressing member 20 corresponds to one side of the body 11 The receiving hole 252 is provided with the first weight C, and the weighting protrusion 251 corresponding to one side of the weight of the rotor 10 is removed to achieve the effect of the weight.

In the sixth embodiment of the present invention, as shown in FIG. 10, the weight portion 25 is the accommodating hole 252, the first weight C, and the weight hole 253. The second side surface 23, the receiving hole 252 is disposed with the first weight C, and the first weight is disposed by the receiving hole 252 of the pressing member 20 corresponding to one side of the body 11 The weighting hole 253 is formed on the side of the weight of the squeezing member 20 corresponding to the weight of the squeezing member 10 to achieve a counterweight effect. Preferably, the weighting hole 253 can be disposed on the second side 23 or The circumferential surface 24.

It can be seen from the foregoing that the weighting structure of the present invention is mainly applied to the weighting structure of the synchronous motor. The first end surface 111 and the second end surface 112 of the body 11 of the rotor 10 are respectively combined with the pressing member 20, and the pressing member is adjusted according to requirements. 20 corresponds to one side of the weight portion 25 of the body 11 which is heavier or lighter. If the weight of the rotor 10 is heavier than one side, the weight portion 25 is adjusted so that the pressing member 20 is on the side of the heavier weight. If the weight is reduced, if the weight of the rotor 10 is lighter than one side, the weight portion 25 is adjusted to increase the weight of the pressing member 20 on one side of the light weight to achieve the effect of the weight, thereby achieving a avoidance. Destruction of the motor structure, convenient and effective for the weight structure of the synchronous motor.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the invention and the contents of the invention are still It is within the scope of the patent of the present invention.

10‧‧‧Rotor

11‧‧‧Ontology

111‧‧‧ first end face

112‧‧‧second end face

12‧‧‧ Spindle

20‧‧‧ Pressing parts

21‧‧‧Axis hole

22‧‧‧ first side

23‧‧‧ second side

24‧‧‧circular surface

25‧‧‧With weight department

251‧‧‧weight bumps

X‧‧‧ axial

Y‧‧‧ piercing

Z‧‧‧ permanent magnet

Claims (11)

A counterweight structure suitable for a synchronous motor, comprising a rotor mounted on a synchronous motor, the rotor being composed of a body and a main shaft penetrating the main body, the body having a first end surface and a first end a second end surface, wherein the weighting structure applicable to the synchronous motor comprises: two pressing members respectively coupled to the first end surface and the second end surface of the body, the pressing member having a shaft hole, the main shaft of the rotor The pressing member has a first side and a second side opposite to each other and a circumferential surface connecting the first side and the second side, the first side is opposite to the body of the rotor, The second side or the circumferential surface has at least one weight. The weight structure for the synchronous motor, as described in claim 1, wherein the weight portion is at least two weighting protrusions, and the weighting protrusions are disposed on the second side. The weight structure for the synchronous motor according to the first aspect of the invention, wherein the weight portion is at least two accommodating holes and at least one first weight, and the accommodating hole is opened on the second side. The receiving hole is configured to place the first weight. The weight structure for a synchronous motor according to the first aspect of the invention, wherein the weight portion is at least one weight hole, and the weight hole is opened on a side of the pressing member corresponding to the heavier rotor . The weight structure for the synchronous motor, as described in claim 1, wherein the weight portion is a weight ring groove and a second weight, and the weight ring groove is formed in the pressing member. In the second side, the weight ring groove is configured to place the second weight. The weight structure for the synchronous motor according to the first aspect of the invention, wherein the weight portion is at least two receiving holes, at least one first weight, and at least two weighting blocks, the receiving portion The hole is defined in the second side, and the receiving hole is disposed on the first weight, and the weighting protrusions are disposed on the second side. The weight structure for the synchronous motor according to the first aspect of the invention, wherein the weight portion is at least two receiving holes, at least one first weight, and at least one weight hole, the receiving hole Opening on the second side, the receiving hole is configured to place the first weight. The weight structure applicable to the synchronous motor as described in claim 2, wherein the weight of the weight is 2 to 10, and the weight bumps are arranged at equal intervals. The weight structure applicable to the synchronous motor according to claim 3, wherein the receiving holes are equally spaced, and the receiving hole penetrates the pressing member. A weight structure suitable for a synchronous motor as described in claim 4, wherein the weight hole is provided on the second side or the circumferential surface. The weight structure of the synchronous motor, as described in claim 1, wherein the first end surface extends to the second end surface in an axial direction, and the body axially opens a plurality of elongated strips. At least one of the perforations has a permanent magnet therein.