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A manufacturing method of a plastic-encapsulated stator, a plastic-enclosed stator and an outer rotor motor

A technology of plastic-encapsulated stators and manufacturing methods, which is applied in the manufacture of motor generators, stator/rotor bodies, electrical components, etc., can solve the problem of lack of magnetic flux concentration effect permanent magnet flux utilization, reduce the market competitiveness of motor products, and the outer rotor Problems such as low motor operation efficiency, to achieve the effect of convenient production and installation, strong combination, and improved utilization

Active Publication Date: 2018-04-06
ZHONGSHAN BROAD OCEAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the small area of ​​the outer surface of the stator core and the installation of end insulation on the end surface of the stator core, the area of ​​the outer surface of the teeth of the stator core that can receive the magnetic flux emitted by the permanent magnet becomes smaller. smaller, thereby reducing the utilization rate of permanent magnets, and due to the lack of effective magnetic concentration effect to improve the flux utilization rate of permanent magnets, the operation efficiency of external rotor motors is low and the energy consumption is high
[0003] At the same time, the stator iron core of the existing external rotor motor is usually made of stator punches stamped from a whole piece of silicon steel sheet, but the stator punch manufactured by this production method consumes a lot of raw materials, and the silicon steel sheet The utilization rate of the motor is very low, which increases the production cost of the motor and reduces the market competitiveness of the motor product. These are not what the manufacturer expects

Method used

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  • A manufacturing method of a plastic-encapsulated stator, a plastic-enclosed stator and an outer rotor motor
  • A manufacturing method of a plastic-encapsulated stator, a plastic-enclosed stator and an outer rotor motor
  • A manufacturing method of a plastic-encapsulated stator, a plastic-enclosed stator and an outer rotor motor

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Experimental program
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Effect test

Embodiment 1

[0038] Embodiment 1: This embodiment is a manufacturing method of a plastic-encapsulated stator, which consists of the following steps:

[0039] Step 1) Making the stator core: stacking and assembling several annular stator punching pieces 101 with the annular yoke 11 and a plurality of stator teeth 12 protruding from the outer edge of the annular yoke 11 to form the stator core 1;

[0040] Step 2) Winding: install end insulation 2 at both ends of the stator core 1, and then wind the coil winding 3 and install it on the end insulation 2 of the stator teeth 12;

[0041] Step 3) Installing the magnetic guide: put the magnetic guide 5 outside the stator core 1 where the coil winding 3 has been wound, and make the outer side wall of the stator teeth 12 closely contact with the inner side wall of the magnetic guide 5;

[0042] Step 4) Plastic sealing: The stator core 1 with the magnetic guide 5 formed in step 3) is integrally injected to form a plastic package 4, and the stator co...

Embodiment 2

[0043] Embodiment two: if figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 As shown, the present invention is a molded stator, including a stator core 1, end insulation 2, coil windings 3 and a molded body 4, the stator core 1 includes an annular yoke 11 and an outer edge of the annular yoke 11 A number of stator teeth 12 protruding from the upper part, a wire groove 13 is formed between two adjacent stator teeth 12, and the end insulation 2 is injected and installed on the end face of the stator core 1 and the stator teeth 12 The outer wall is exposed, and the coil winding 3 is wound and installed on the end insulation 2. It also includes a ring-shaped magnetic guide 5, and the magnetic guide 5 is placed outside the stator tooth 12. The exposed outer wall of the stator tooth 12 is connected to the The inner side wall of the magnetic conducting part 5 is closely attached together, and the stator core 1, the end insulation 2, the coil winding 3 and the magnetic co...

Embodiment 3

[0047] Embodiment three: as Figure 1 to Figure 9 As shown, the present embodiment is an outer rotor motor, which includes a rotating shaft 6, an outer rotor 7, a plastic-encapsulated stator 8 and a base 9. A sleeve seat 91 protrudes downward from the middle of the base 9, and a bearing is installed inside the sleeve seat 91. 10. The plastic-sealed stator 8 is set on the outside of the sleeve seat 91, the outer rotor 7 is sleeved on the outside of the plastic-sealed stator 8, the rotating shaft 6 is located inside the sleeve seat 91 and supported on the bearing 10, and one end of the rotating shaft 6 is connected from the sleeve Seat 91 protrudes and connects with outer rotor 7, said plastic-sealed stator 8 includes stator core 1, end insulation 2, coil winding 3 and plastic-sealed body 4, said stator core 1 includes annular yoke 11 and A number of stator teeth 12 protruding from the outer edge of the annular yoke 11, a wire slot 13 is formed between two adjacent stator teeth ...

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Abstract

A manufacturing method for a plastic package stator, a plastic package stator and an external rotor motor. An annular magnetic conduction piece (5) is sheathed outside a stator tooth portion (12), a plastic package body (4) connects a stator iron core (1), an end insulator (2), a coil winding (3) and the magnetic conduction piece (5) into a whole, an outer side wall of the stator tooth portion (12) is attached to an inner side wall of the magnetic conduction piece (5), and an outer side wall of the magnetic conduction piece (5) is exposed out of the plastic package body (4), such that the stator iron core (1) can receive a magnetic flux sent by a permanent magnet (72) on a larger scale, a magnetic gathering effect is formed, and the utilization rate of the permanent magnet (72) is improved, thereby improving the efficiency of a motor.

Description

Technical field: [0001] The invention relates to a manufacturing method of a plastic-sealed stator, a plastic-sealed stator and an outer rotor motor, and belongs to the technical field of motors. Background technique: [0002] The existing external rotor motor mainly includes an inner stator and an outer rotor sleeved outside the inner stator, wherein the inner stator includes a stator core, end insulation and coil windings, and the outer rotor includes a casing sleeve and an outer rotor installed on the machine. A number of permanent magnets on the inner wall of the shell sleeve form a magnetic flux between the outer surface of the teeth of the stator core and the inner surface of the permanent magnet, so that the outer rotor can rotate continuously. However, due to the small area of ​​the outer surface of the stator core and the installation of end insulation on the end surface of the stator core, the area of ​​the outer surface of the teeth of the stator core that can rec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K15/03H02K1/16
CPCH02K1/16H02K15/03
Inventor 潘明攀
Owner ZHONGSHAN BROAD OCEAN
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