阅读说明：本技术 一种无铁芯直线电机动子、定子结构 (Rotor and stator structure of coreless linear motor ) 是由 张海日 胡吉祥 于 2018-08-08 设计创作，主要内容包括：本发明提供一种无铁芯直线电机动子、定子结构，包括定子（1）和动子（2），定子（1）为U型结构，定子（1）包括U型磁轭（3），U型磁轭（3）上设置双层排列的铁钕硼磁铁（4）；动子（2）为T型结构，动子（2）包括金属支撑体（5）和环氧基机械强化体（6），环氧基机械强化体（6）上设有多片印制线路板（7），环氧基机械强化体（6）底部设有印制线路板支撑体（8），印制线路板（7）上设有扁圆形状电感（9）。本发明属于机电设备领域，本发明的有益效果在于：在更准确、更精密的同时保持更好的散热导热性能；机械强度更高、更稳定、更耐用，且不易损坏；大大提高了无铁芯直线电机的量产便利性,解决了全自动化生产的业界难题。(The invention provides a structure of a rotor and a stator of a linear motor without an iron core, which comprises a stator (1) and the rotor (2), wherein the stator (1) is of a U-shaped structure, the stator (1) comprises a U-shaped magnetic yoke (3), and iron neodymium boron magnets (4) which are arranged in a double-layer mode are arranged on the U-shaped magnetic yoke (3); the rotor (2) is of a T-shaped structure, the rotor (2) comprises a metal supporting body (5) and an epoxy mechanical strengthening body (6), a plurality of printed circuit boards (7) are arranged on the epoxy mechanical strengthening body (6), a printed circuit board supporting body (8) is arranged at the bottom of the epoxy mechanical strengthening body (6), and an oblate inductor (9) is arranged on the printed circuit board (7). The invention belongs to the field of electromechanical equipment, and has the beneficial effects that: the better heat dissipation and heat conduction performance is kept while the accuracy and the precision are higher; the mechanical strength is higher, more stable and more durable, and is not easy to damage; the mass production convenience of the coreless linear motor is greatly improved, and the industrial difficulty of full-automatic production is solved.)

1. The utility model provides a no iron core linear electric motor active cell, stator structure, includes stator (1) and active cell (2), its characterized in that: the stator (1) is of a U-shaped structure, the stator (1) comprises a U-shaped magnetic yoke (3), and iron neodymium boron magnets (4) which are arranged in a double-layer mode are arranged on the U-shaped magnetic yoke (3); the rotor (2) is of a T-shaped structure, the rotor (2) comprises a metal supporting body (5) and an epoxy mechanical strengthening body (6), a plurality of printed circuit boards (7) are arranged on the epoxy mechanical strengthening body (6), a printed circuit board supporting body (8) is arranged at the bottom of the epoxy mechanical strengthening body (6), and an oblate inductor (9) is arranged on the printed circuit board (7).

2. The structure of the rotor and the stator of the coreless linear motor as claimed in claim 1, wherein: the metal support body (5) on the rotor (2) is made of aluminum alloy, and the epoxy-based mechanical reinforcement body (6) on the rotor (2) is of an epoxy-based resin bonding structure.

3. The structure of the rotor and the stator of the coreless linear motor as claimed in claim 1, wherein: the printed circuit board (7) on the epoxy mechanical reinforcement body (6) adopts 0.2mm-0.6mm FR-4 board, the printed circuit board support body (8) at the bottom of the epoxy mechanical reinforcement body (6) adopts 1.6mm-2.0mm FR-4 board, every two adjacent printed circuit boards (7) are electrified in a soldering tin mode, and the printed circuit boards (7) and the printed circuit board support body (8) are single-sided or double-sided printed circuit boards.

4. The structure of the rotor and the stator of the coreless linear motor as claimed in claim 1, wherein: the surface of the iron neodymium boron magnet (4) on the stator (1) is treated by an epoxy group, and the gap between the magnet yoke (3) on the stator (1) and the iron neodymium boron magnet (4) on the stator (1) is 0.05mm-0.1 mm.

5. The structure of a rotor and a stator of a coreless linear motor according to claim 1 or 4, wherein: the magnet yoke (3) on the stator (1) is connected with the iron neodymium boron magnet (4) on the stator (1) through an adhesive, and the adhesive is a two-component adhesive or an anaerobic adhesive.

6. The structure of the rotor and the stator of the coreless linear motor as claimed in claim 1, wherein: and a heat dissipation filler (10) is arranged between every two adjacent printed circuit boards (7), and the heat dissipation filler (10) is made of graphite materials.

Technical Field

The invention belongs to the field of electromechanical equipment, and particularly relates to an internal structure of a moving stator of a coreless linear motor.

Background

The linear motor is widely applied to industries such as civil use, industry, military and the like. In the world, most of special iron-core-free linear motors adopt oblate enameled coils to process and assemble inductance enameled wires, a large amount of manpower is needed, the consistency is relatively weak, a large amount of mass production differences need to be solved manually, the linear motor adopting a coil mode also needs to adopt a manual mode for cable connection, the existing enameled wire inductance iron-core-free linear motor cannot meet the strong market requirements of automatic production and consistency production, the existing printed circuit board linear motor also has the problems of poor heat dissipation performance during operation, and the mechanical strength of a motor moving stator is not high enough and is easy to damage.

Disclosure of Invention

The invention aims to provide a structure of a movable stator and a movable stator of a coreless linear motor of a printed circuit board, aiming at solving a series of problems that the coreless linear motor in the prior art is not easy to realize mass production, cannot meet automatic production and consistent production, has poor heat dissipation performance during operation, has low mechanical strength of the movable stator, is easy to damage and the like.

The invention is realized by the following technical scheme that the structure of the rotor and the stator of the iron-core-free linear motor comprises the stator and the rotor, wherein the stator is of a U-shaped structure and comprises a U-shaped magnetic yoke, and the U-shaped magnetic yoke is provided with iron neodymium boron magnets which are arranged in a double-layer manner; the rotor is of a T-shaped structure and comprises a metal supporting body and an epoxy mechanical reinforcement body, wherein a plurality of printed circuit boards are arranged on the epoxy mechanical reinforcement body, a printed circuit board supporting body is arranged at the bottom of the epoxy mechanical reinforcement body, and an oblate inductor is arranged on the printed circuit board.

Preferably, the metal support body on the mover is made of an aluminum alloy material, and the epoxy-based mechanical reinforcement body on the mover is an epoxy-based resin bonding structure.

Preferably, the printed circuit board on the epoxy mechanical reinforcement body is made of 0.2-0.6 mm FR-4 board, the printed circuit board support body at the bottom of the epoxy mechanical reinforcement body is made of 1.6-2.0 mm FR-4 board, every two adjacent printed circuit boards are electrified in a soldering tin mode, and the printed circuit boards and the printed circuit board support body are single-sided or double-sided printed circuit boards.

Preferably, the surface of the iron neodymium boron magnet on the stator is treated by epoxy group, and the gap between the magnet yoke on the stator and the iron neodymium boron magnet on the stator is 0.05mm-0.1 mm.

Preferably, the magnet yoke on the stator is connected with the iron neodymium boron magnet on the stator through an adhesive, and the adhesive is a two-component adhesive or an anaerobic adhesive.

Preferably, heat dissipation filling is arranged between every two adjacent printed circuit boards, and the heat dissipation filling is made of graphite materials.

The invention has the beneficial effects that: (1) the invention can keep better heat dissipation and heat conduction performance during the operation process more accurately and precisely; (2) the linear motor moving stator has higher mechanical strength, is more stable and durable, and is not easy to damage; (3) the invention greatly improves the convenience of mass production of the coreless linear motor and solves the industrial problems that the mass production is difficult and the automatic production and the product consistency cannot be met; (4) the invention provides a comprehensive and innovative mode by the multilayer structure of the printed circuit board with lower manufacturing difficulty, which is separated from the traditional manufacturing mode.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural diagram of a rotor and a stator of a coreless linear motor;

FIG. 2 is a schematic view of a stator structure of a linear motor;

FIG. 3 is a schematic structural diagram of a mover of the linear motor;

fig. 4 is a schematic structural diagram of a printed circuit board of a rotor structure of the linear motor.

Detailed Description

As shown in fig. 1, 2, 3 and 4, the invention provides a structure of a mover and a stator of a linear motor without an iron core, which comprises a stator 1 and a mover 2, wherein the stator 1 is of a U-shaped structure, the stator 1 comprises a U-shaped magnetic yoke 3, and the U-shaped magnetic yoke 3 is provided with iron neodymium boron magnets 4 arranged in a double-layer manner; the rotor 2 is of a T-shaped structure, the rotor 2 comprises a metal supporting body 5 and an epoxy mechanical reinforcement body 6, a plurality of printed circuit boards 7 are arranged on the epoxy mechanical reinforcement body 6, a printed circuit board supporting body 8 is arranged at the bottom of the epoxy mechanical reinforcement body 6, and an oblate inductor 9 is arranged on the printed circuit board 7.

The metal support body 5 is the aluminum alloy material, stable support active cell position, simultaneously can be fine lead just with derive the heat that the motor produced when moving, the epoxy mechanical reinforcement body 6 is epoxy resin bonding structure, this material structure all has more efficient effect in the aspect of the mechanical strength of reinforcing click active cell and the aspect of the heat dissipation, the metal support body 5 makes the active cell structure keep stable, high-efficient, lasting effect with the mutual cooperation of the epoxy mechanical reinforcement body 6.

The epoxy mechanical reinforcer 6 is provided with a plurality of layers of printed circuit boards 7, the method not only improves the precision, but also solves the problems that the mass production is not easy and the automatic production and the product consistency cannot be met, through a large number of experiments, the printed circuit boards 7 adopt 0.2mm-0.6mm FR-4 plates, the performance and the effect are optimal, the printed circuit board support body 8 adopts 1.6mm-2.0mm FR-4 plates, the thrust generated when a motor operates is connected through the FR-4 plates, the plate thickness and the mechanical strength are balanced, every two adjacent printed circuit boards 7 are electrified in a soldering tin mode, and the printed circuit boards 7 and the printed circuit board support body 8 are single-sided or double-sided printed circuit boards.

U type yoke 3 and indisputable neodymium boron magnet 4 interact, produce the magnetic field, the iron neodymium boron magnet 4 surface is handled through the epoxy group, makes indisputable neodymium boron magnet 4 stronger with U type yoke 3's reactivity, and yoke 3 passes through the adhesive with indisputable neodymium boron magnet 4 and is connected, and the adhesive must be two ingredient type adhesives or anaerobic type adhesive, keeps mechanical strength, and the clearance between yoke 3 and the indisputable neodymium boron magnet 4 after through the adhesive is 0.05mm-0.1mm, and in this clearance distance, the effect reaches the best.

The big problem that the active cell produced when the heat dissipation problem was no iron core linear electric motor operated, ordinary no iron core linear electric motor can't reach better radiating effect, leads to the process of action unstable and fragile, at every adjacent two be equipped with heat dissipation between the printed wiring board 7 and fill 10, heat dissipation is filled 10 and is adopted graphite material, cooperation aluminum alloy material supporter and epoxy adhesive structure, makes the heat dissipation problem obtain solving.

The invention is not limited to the above-described preferred embodiments, but rather, based on the embodiments of the invention, any modifications, equivalents, improvements and the like, which may occur to those skilled in the art without inventive faculty, are within the scope of the invention.