Stator core, stator comprising stator core and preparation method of stator

A stator iron core and iron core technology, which is applied in the manufacture of stator/rotor body, motor generator, magnetic circuit shape/style/structure, etc., can solve the problems of low production efficiency, high labor intensity and low material utilization rate. , to achieve the effect of improving production efficiency, liberating labor, and simple operation

Pending Publication Date: 2019-07-09

SUZHOU INDAL PARK TAIGE ELECTRONICS SCI &TECH

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AI-Extracted Technical Summary

Problems solved by technology

[0004] 1) The stator core adopts the overall blanking method, and the material utilization rate is low

[0005] 2) Due to the narrow notch, such as figure 2 As shown in the inner hole, the winding must be directly wound on the stator teeth of the stator core by a special winding machine. Due to the limitation of the process conditions, it is difficult to arrange the enameled wires neatly, which leads to the inability to increase the slot fill rate and slow winding speed. Low production efficiency

[0006] Not only that, the special winding machine needs to slide the enameled wire into the stator teet...

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Method used

The 3rd, insulating frame 5 is ingenious in structure, utilizes winding machine to carry out coil winding on it, and winding speed can reach 3000rpm, and arranging wire is neat and tight, effectively improves slot full rate, and produces the relative slippage parts with enameled wire Very little, to protect the paint film from damage to the maximum extent.

The second, the stator iron core is surrounded by three iron core units 1 splicing along its circumference, and each iron core unit 1 accounts for 120 degrees, and the structure of the three iron core units 1 is more reasonable, and is more convenient for winding Component installation.

The yoke portion 11 comprises: a positioning portion 111 and splicing portions 112 arranged on opposite sides of the positioning portion 111; the tooth portion 12 is arranged on the inner wall of the positioning portion 111, and the outer wall of the tooth portion 12 protrudes outward and is round Arc-shaped, the center of the positioning part 111 is consistent with the center of the tooth part 12; the splicing protrusion 2 and the splicing groove 3 of the splicing part are respectively arranged on the heads of the two splicing parts 112. By adopting the above structure, the mechanical strength ...

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Abstract

The invention discloses a stator core, a stator comprising the stator core and a preparation method of the stator. The stator core comprises a plurality of core units, wherein the stator core is formed in the way that the plurality of core units are spliced and enclosed along the circumferential direction of the core units; each core unit comprises a yoke part and a tooth part which extends towards the axis center of the stator core on the yoke part; a splicing protrusion used for splicing and a splicing groove matched with the splicing protrusion are arranged on each yoke part; and the innerwidth and outer width of each tooth part are equal, and after each core unit is spliced with other core units, an open slot stator structure is formed. The stator core is simple in structure, low in cost, convenient to install together with a winding component, high in efficiency and capable of effectively realizing automatic production.

Application Domain

WindingsMagnetic circuit stationary parts +1

Technology Topic

PhysicsStator +2

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Examples

Experimental program(1)

Example Embodiment

[0047] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] In order to achieve the objective of the present invention, in some embodiments of the open-slot stator core, the stator including the stator core and the preparation method thereof, the open-slot stator core includes three core units 1, and the stator core passes through three The iron core unit 1 is spliced and enclosed along its circumference; Figure 5 As shown, each core unit 1 includes: a yoke 11 and a tooth 12 extending to the axis of the stator core on the yoke 11; a splicing protrusion 2 for splicing and a splicing The splicing groove 3 that matches the protrusion 2; the tooth 12 has the same width inside and outside, and forms an open slot structure after being spliced with other iron core units.

[0049] The yoke portion 11 includes a positioning portion 111 and a splicing portion 112 disposed on opposite sides of the positioning portion 111; the tooth portion 12 is disposed on the inner wall of the positioning portion 111, and the outer wall of the tooth portion 12 protrudes outward and is arc-shaped, The center of the positioning portion 111 is consistent with the center of the tooth 12; the splicing protrusion 2 and the splicing groove 3 are respectively disposed on the heads of the two splicing portions 112. With the above structure, the mechanical strength of the yoke 11 is high, and the installation of the winding assembly is more convenient without interference. Not only that, but a positioning hole 7 can also be provided in the center of the positioning portion 111, which is more convenient for fixing and positioning the yoke portion 11 and for the installation of the winding assembly.

[0050] The invention also discloses a stator, such as Image 6 As shown, the stator includes a stator iron core and a winding assembly sleeved on the stator iron core teeth 12. The winding assembly includes an insulating frame 5 and a winding coil 6 wound on the insulating frame 5.

[0051] Such as Figure 7 with 8 As shown, the insulating frame 5 includes: a ring-shaped hollow frame body 51 and two flanges 52. The two flanges 52 are respectively disposed on the opposite opening sides of the frame body 51 and extend in the radial direction of the frame body 51. The coil winding Wound on the frame body 51.

[0052] The frame body 51 and the flange 52 are made of insulating materials, which not only serve as a supporting element of the winding coil 6 but also as an insulating spacer between the winding coil 6 and the stator core.

[0053] The insulating frame 5 has a simple structure, and the flange 52 limits the coil winding, which is more convenient for the winding machine to wind, and the wiring is tighter and neater, and the slot full rate is improved.

[0054] Stator preparation methods, such as Picture 9 As shown, for preparing the stator, it specifically includes the following steps:

[0055] 1) Prepare the iron core unit 1 to be spliced;

[0056] 2) Use a winding machine to wind the winding coil 6 on the insulating skeleton 5 to prepare the winding assembly;

[0057] 3) The winding assembly is sleeved on the tooth 12 of the single iron core unit 1, and the flange 52 of the insulating frame 5 is in contact with the plane of the inner wall of the positioning portion 111;

[0058] 4) A number of iron core units 1 with winding components are spliced along their circumference to form a stator.

[0059] The stator core of the present invention, the stator including the stator core and the preparation method thereof have the following beneficial effects:

[0060] First, the stator core adopts a spliced structure, and the material utilization rate is high.

[0061] Second, the stator iron core is formed by splicing and enclosing three iron core units 1 along its circumference, each iron core unit 1 occupies 120 degrees, the structure of the three iron core units 1 is more reasonable, and the installation of winding components is more convenient .

[0062] Third, the insulating skeleton 5 has a clever structure. The winding machine is used to wind the coil on it. The winding speed can reach 3000rpm. The wiring is neat and tight, which effectively improves the slot full rate, and there are very few parts that have relative slippage with the enameled wire. Maximum protection of paint film from damage.

[0063] Fourth, the width of the teeth 12 of the stator iron core is equal, and the stator structure is formed by splicing with other iron core units to form an open slot stator structure, so that the winding assembly can be directly sleeved on the teeth 12, and the installation is more convenient.

[0064] Fifth, the stator core adopts a spliced structure of three core units 1, and the winding assembly can be inserted into the tooth 12 in advance, and then spliced, which greatly improves the installation and production efficiency.

[0065] Sixth, the stator preparation method of the present invention can easily realize mechanized and fully automatic production under the premise of a small amount of capital investment, effectively reduce labor intensity, reduce labor costs, and meet the needs of mass production.

[0066] Seventh, the stator disclosed in the present invention has a compact structure. If it is applied to a motor, the size of the motor can be greatly reduced, and due to the high slot full rate of the stator, it can effectively improve the efficiency of the motor.

[0067] In order to further optimize the implementation effect of the stator core of the present invention, in other embodiments, the remaining characteristic technologies are the same, but the difference lies in Picture 10 with 11 As shown, the splicing protrusion 2 has an arc shape, a dovetail shape, or a rectangular shape.

[0068] With the above-mentioned preferred solution, the splicing is interference fit, no welding or other positioning/fixing structures are required, and the splicing is firmer.

[0069] Regarding the preferred embodiments of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the inventive concept of the present invention, several modifications and improvements can be made, and these all fall within the protection scope of the present invention.

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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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Classification and recommendation of technical efficacy words

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Easy to install

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Increase productivity Low cost Easy to operate Free labor Tooth part Manufacturing stator/rotor bodies

Stator core, stator comprising stator core and preparation method of stator

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

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Example Embodiment

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Description & Claims & Application Information

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