TWI628899B - Motor core process and structure - Google Patents

Abstract

The invention relates to a motor core process and a structure thereof, comprising a preparation step, a coating step, a stacking step and a forming step, wherein the preparing step is to clean and dry a plurality of silicon steel sheets, the coating step The electrical insulating colloid is applied between the upper and lower spaced silicon steel sheets. The stacking step stacks the silicon steel sheets coated with the electrically insulating colloids to form a layered structure, and the forming step is performed on each of the stacked layers. The colloidal solidification process of the silicon steel sheet is disposed between the upper and lower steel sheets through the respective electrical insulating colloids, so that gaps are formed between the upper and lower steel sheets without electrical insulating colloid, which greatly reduces the chance of forming eddy currents. , thereby greatly reducing the eddy current loss of the motor core during operation.

Description

Motor core process and structure

The invention relates to a motor core, in particular to a motor core process and a structure thereof.

The existing motor includes a stator and a rotor. The stator and the rotor of the motor may also be referred to as a core. The stator is a ring-shaped structure, and the rotor is a cylindrical structure. The stator and the rotor are each a plurality of The silicon steel sheets are stacked, and the stator is taken as an example. As shown in FIG. 8 to FIG. 10, each of the silicon steel sheets 90 has an annular structure, and each of the top steel sheets 90 is provided with a plurality of positioning concave portions 91 at the top annular ring, and then The laminated silicon steel sheets 90 are concavely and convexly engaged with each other through the plurality of positioning concave portions 91, and the plurality of steel sheets 90 are superposed through each other to have a thickness of the motor core.

The motor core is only directly overlapped and contacted by a plurality of silicon steel sheets 90 in the process, and then fixedly bonded by welding or gluing. Therefore, when the existing motor is used, the magnetic lines of force pass through a plurality of steel sheets 90. That is, the magnetic lines of force will run inside the motor core, and the motor core itself has a magnetic resistance, which will make the magnetic lines slow down, that is, hysteresis, and hysteresis will cause loss. This loss phenomenon is called hysteresis loss. In the process of running magnetic lines in the motor core, there will also be turning and turning. This is the eddy current phenomenon, and the eddy current phenomenon will also cause loss. This loss phenomenon is called eddy current loss, and the existing motor is the steel. The sheets 90 are directly overlapped and contacted, so the magnetic hysteresis loss and the eddy current loss of the magnetic force are particularly remarkable, and the output efficiency of the motor is not good, so it is necessary to improve.

In order to reduce the loss of the existing magnetic lines of force and the loss caused by the eddy current phenomenon, the main object of the present invention is to provide a motor core process and a structure thereof, and the present invention is mainly provided between the upper and lower laminated silicon steel sheets. The electric insulating colloid allows the magnetic lines to run only in the respective silicon steel sheets, which greatly reduces the chance of forming eddy currents, thereby greatly reducing the eddy current loss during operation to improve the output efficiency of the motor.

The invention solves the motor core process proposed by the prior art problem, comprising: a preparation step of cleaning and drying a plurality of silicon steel sheets; and a coating step of applying an electrical insulating colloid to the upper and lower spaced silicon steel sheets. In the stacking step, each of the tantalum steel sheets coated with the electrically insulating colloid is stacked on each other to form a layered structure; and a forming step is performed to perform a colloidal solidification process on the stacked steel sheets to form a tough thermosetting plastic.

In the foregoing motor core process, in the coating step, the electrically insulating colloid is circumferentially applied between the upper and lower spaced silicon steel sheets, and in the stacking step, there is a gap between the respective steel sheets.

In the foregoing motor core process, in the coating step, the electrical insulating rubber system is completely covered between the upper and lower spaced silicon steel sheets, and in the stacking step, the electrical insulating colloids between the steel sheets are electrically insulated. .

In the foregoing motor core process, wherein the colloidal curing process in the forming step is a heating process, and the colloid curing process has a heating range of 100 ° C to 250 ° C.

The aforementioned motor core process, wherein the colloidal curing process in the forming step is an anaerobic process.

In the foregoing motor core process, the colloidal curing process in the forming step is a pressurization program, and the pressing force of the pressurizing program is 2000 kgf to 10000 kgf.

The invention solves the prior art problem of the motor core structure, which comprises: a plurality of silicon steel sheets; a plurality of layers of electrically insulating colloids, each layer of electrically insulating colloid disposed between the upper and lower steel sheets.

In the foregoing motor core structure, the electrically insulating colloid is annularly disposed between the upper and lower steel sheets, so that a gap is formed between the upper and lower steel sheets without the electrical insulating colloid.

In the foregoing motor core structure, the plurality of layers of the electrically insulating colloid are integrally covered between the upper and lower spaced steel sheets, so that the upper and lower steel sheets are covered with an electrically insulating colloid.

The utility model can improve the efficiency obtained by the invention: the invention applies the electrically insulating colloid to the upper and lower spaced silicon steel sheets, so that the upper and lower spaced silicon steel sheets are provided with an electrically insulating colloid, and then the electromagnetic During the operation of the iron, the magnetic lines cannot pass through the electrically insulating colloid, so that the magnetic lines can only run in the respective silicon steel sheets, which can greatly reduce the chance of forming eddy currents. Therefore, the present invention can greatly reduce the motor core during operation. Eddy current loss phenomenon.

In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the present invention, further details are shown in the following preferred embodiments.

A first preferred embodiment of the motor core process provided by the present invention is shown in FIGS. 1 to 4, and includes a preparation step S1, a coating step S2, a stacking step S3, and a forming step S4. :

Preparation step S1: A plurality of silicon steel sheets 10 are washed and dried.

Coating step S2: The electrically insulating colloid 20 is applied between the upper and lower spaced silicon steel sheets 10, and preferably, the electrically insulating colloid 20 is applied around the upper and lower spaced silicon steel sheets 10 at intervals.

The stacking step S3: the respective tantalum steel sheets 10 coated with the electrically insulating colloid 20 are stacked on each other to form a layered structure in which each of the silicon steel sheets 10 has a gap therebetween.

Forming step S4: performing a colloidal solidification process on each of the stacked silicon steel sheets 10 such that the electrically insulating colloid 20 forms a tough thermosetting plastic, and the respective steel sheets 10 are electrically non-conducting, and a plurality of silicon steel sheets 10 are stacked. The finished product is shown in FIG. 5 , wherein the colloid curing process can be a heating or anaerobic or pressurized process, wherein if the colloid curing process is a heating process, the colloid curing process has a heating range of 100° C. to 250° C. If the colloidal solidification procedure is a pressurization procedure, the pressurization force of the pressurization procedure is 2000 kgf to 10000 kgf.

As shown in FIG. 6 and FIG. 7, the second preferred embodiment of the motor core process provided by the present invention is substantially the same as the first preferred embodiment, except that in the coating step, the electrically insulating colloid 20 is The complete cover is applied between the upper and lower spaced silicon steel sheets 10, and in the stacking step, the respective steel sheets 10 are electrically insulating colloids 20.

In summary, the main feature of the present invention is that the electrically insulating colloid 20 is applied between the upper and lower spaced silicon steel sheets 10, and the electrically insulating colloid 20 is disposed between the upper and lower laminated silicon steel sheets 10, and the present invention is During the operation of the motor core, the magnetic lines of force cannot pass through the electrically insulating colloid 20, so that the magnetic lines can only run in the respective silicon steel sheets 10, and the chance of forming eddy currents is greatly reduced, so that the present invention can greatly reduce the motor iron. The eddy current loss phenomenon of the core during operation.

A first preferred embodiment of the motor core structure provided by the present invention is shown in Figures 2 through 4, which includes a plurality of silicon steel sheets 10 and a plurality of layers of electrically insulating colloid 20, wherein:

Each of the silicon steel sheets 10 is an annular sheet body, and the electrically insulating colloids 20 are annularly spaced between the upper and lower steel sheets 10 so that no gap is formed between the upper and lower steel sheets 10 without the electrical insulating colloid 20 .

The second preferred embodiment of the motor core structure provided by the present invention is as shown in FIG. 5 and FIG. 6, which is substantially the same as the first preferred embodiment, except that the majority of the electrical insulating colloids are completely intact. Covering between the upper and lower spaced silicon steel sheets, an electrically insulating colloid 20 is disposed between the upper and lower steel sheets 10 .

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any one of ordinary skill in the art can use the present invention without departing from the technical features of the present invention. Equivalent embodiments of the local changes or modifications made by the disclosed technology are still within the scope of the technical features of the present invention.

10‧‧‧矽Steel sheet

20‧‧‧Electrical insulating colloid

90‧‧‧矽Steel sheet

91‧‧‧ positioning recess

S1‧‧‧Preparation steps

S2‧‧‧ coating step

S3‧‧‧Stacking steps

S4‧‧‧ forming steps

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a flow chart showing the operation of a preferred embodiment of the present invention. Figure 2 is a perspective view showing the appearance of a first preferred embodiment of the present invention. Figure 3 is an exploded perspective view showing the appearance of the first preferred embodiment of the present invention. Figure 4 is a cross-sectional side view of a first preferred embodiment of the present invention. Figure 5 is a perspective view showing the appearance of the finished product of the first preferred embodiment of the present invention. Figure 6 is an exploded perspective view showing the appearance of the second preferred embodiment of the present invention. Figure 7 is a cross-sectional side view of a second preferred embodiment of the present invention. Fig. 8 is a perspective view showing the appearance of a conventional motor core. Fig. 9 is an exploded perspective view showing the appearance of a conventional motor core. Figure 10 is a cross-sectional side view of a conventional motor core.

Claims (2)

A motor core process comprising: a preparation step of cleaning and drying a plurality of silicon steel sheets; and a coating step of applying an electrically insulating colloid around the upper and lower spaced silicon steel sheets; stacking step, coating The silicon steel sheets of the electrical insulating colloid are stacked on each other to form a layered structure, wherein each steel sheet has a gap between them; and a forming step, the stacked steel sheets are subjected to a colloid curing process, so that the colloid forms a tough thermosetting property. plastic. The utility model relates to a motor core structure, which comprises: a plurality of silicon steel sheets; a plurality of layers of electrically insulating colloids, each layer of electrically insulating colloids being annularly arranged between the upper and lower steel sheets, so that there is no upper and lower steel sheets between the two steel sheets A gap is formed at the electrically insulating colloid.