CN113595290A - Linear oscillating motor based on printed circuit board - Google Patents

Linear oscillating motor based on printed circuit board Download PDF

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Publication number
CN113595290A
CN113595290A CN202110781401.5A CN202110781401A CN113595290A CN 113595290 A CN113595290 A CN 113595290A CN 202110781401 A CN202110781401 A CN 202110781401A CN 113595290 A CN113595290 A CN 113595290A
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CN
China
Prior art keywords
motor
printed
printed circuit
circuit board
stator
Prior art date
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Granted
Application number
CN202110781401.5A
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Chinese (zh)
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CN113595290B (en
Inventor
罗梅竹
张子娇
罗健
邹月华
曾春旭
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Dongguan Jietaisheng Technology Co ltd
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Dongguan Jietaisheng Technology Co ltd
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Priority to CN202110781401.5A priority Critical patent/CN113595290B/en
Publication of CN113595290A publication Critical patent/CN113595290A/en
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Publication of CN113595290B publication Critical patent/CN113595290B/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/17—Stator cores with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Linear Motors (AREA)

Abstract

The application discloses linear oscillating motor based on printed circuit board, this motor includes: the stator is a permanent magnet, and the stator is hollow; the mover is located in the hollow portion of the stator, and the mover includes: the printed circuit board comprises a printed circuit board, a first printed wire, a second printed wire, a first conductive wire and a second conductive wire, wherein the first printed wire is printed on the first surface of the printed circuit board, the second printed wire is printed on the second surface of the printed circuit board, the first surface and the second surface are opposite, the wiring direction of the first printed wire is a first direction, the wiring direction of the second printed wire is a second direction, and the first direction is vertical to the second direction; the motor further includes: the rotor comprises a rotor support and a bearing, wherein the rotor support can perform linear motion and swing motion under the driving of a rotor. Through this application, the problem that the motor can not simultaneously perform linear motion and cycloid motion in the prior art is solved, and the motor which uses the printed circuit board as the rotor and can simultaneously perform linear motion and cycloid motion is provided.

Description

Linear oscillating motor based on printed circuit board
Technical Field
The application relates to the field of motors, in particular to a linear oscillating motor based on a printed circuit board.
Background
In the prior art, a motor is generally manufactured by using a copper wire as a winding set, and the manufactured motor is a linear motion motor or an oscillating motion motor.
The prior art motors have two problems: (1) the use of copper wire as the winding group leads to a large volume of the motor and is not miniaturized; (2) the linear motion and the swing motion cannot be simultaneously performed.
Disclosure of Invention
The embodiment of the application provides a linear swing motor based on a printed circuit board to at least solve the problem that the motor cannot simultaneously perform linear motion and swing motion in the prior art.
According to an aspect of the present application, there is provided a printed circuit board-based linear oscillating motor, including a stator and a mover, the stator being a permanent magnet, the stator being hollow; the mover is located in the hollow portion of the stator, and the mover includes: the printed circuit board comprises a printed circuit board, a first printed wire and a second printed wire, wherein the first printed wire is printed on a first surface of the printed circuit board, the second printed wire is printed on a second surface of the printed circuit board, the first surface and the second surface are opposite, the wiring direction of the first printed wire is a first direction, the wiring direction of the second printed wire is a second direction, and the first direction is vertical to the second direction; the motor further includes: the rotor support is driven by the rotor to perform linear motion and swing motion.
Furthermore, the number of the printed circuit boards is two, the mover further comprises supporting portions, the two printed circuit boards are symmetrically fixed to two sides of the supporting portions, and one surface of the two printed circuit boards, which is fixed to the supporting portions, is the second surface.
Further, the stator is a hollow cylinder, the first direction is the axial direction of the cylinder, and the magnetizing direction of the stator is the radial direction of the cylinder.
Further, the stator is a hollow cylinder.
Further, still include: the stator is located inside the hollow portion of the iron yoke, the iron yoke is a column body with the cross section shape identical to that of the stator, the motor end cover is fixed to one end of the iron yoke, and the rotor support and the bearing extend out of the iron yoke in the axial direction of the iron yoke.
Further, a center shaft of the iron core material is arranged in the motor end cover.
Furthermore, an anti-collision rubber strip is arranged at one end of the rotor, which is connected with the rotor support, and/or one end of the rotor, which is close to the motor end cover.
Furthermore, the anti-collision rubber strip is made of non-magnetic rubber.
Further, still include: the motor bottom plate, the yoke iron with the motor end cover sets up on the motor bottom plate.
Further, still include: the linear sliding rail is arranged on the motor base and along the axial direction of the iron yoke, a sliding block capable of sliding along the linear sliding rail is arranged on the linear sliding rail, and a bearing support used for fixing the bearing is arranged on the sliding block.
In the embodiment of the application, the stator is a permanent magnet and is hollow; the mover is located in the hollow portion of the stator, and the mover includes: the printed circuit board comprises a printed circuit board, a first printed wire and a second printed wire, wherein the first printed wire is printed on a first surface of the printed circuit board, the second printed wire is printed on a second surface of the printed circuit board, the first surface and the second surface are opposite, the wiring direction of the first printed wire is a first direction, the wiring direction of the second printed wire is a second direction, and the first direction is vertical to the second direction; the motor further includes: the rotor support is driven by the rotor to perform linear motion and swing motion. Through this application, the problem that the motor can not simultaneously perform linear motion and cycloid motion in the prior art is solved, and the motor which uses the printed circuit board as the rotor and can simultaneously perform linear motion and cycloid motion is provided.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1a is a schematic diagram of a three-dimensional structure of a linear oscillating motor using a printed circuit board as a mover according to an embodiment of the present application;
fig. 1b is a schematic diagram of a three-dimensional structure of a linear oscillating motor using a printed circuit board as a mover according to an embodiment of the present application;
fig. 2 is a schematic diagram of an internal three-dimensional structure of a linear oscillating motor using a printed circuit board as a mover according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a linear oscillating motor printed circuit board mover according to an embodiment of the present application;
fig. 4 is a schematic three-dimensional structure of a mover of a linear swing motor according to an embodiment of the present application;
FIG. 5 is a schematic structural diagram of a mover carriage according to an embodiment of the present application;
fig. 6 is a three-dimensional structural solid schematic diagram of a radially magnetized ring-shaped permanent magnet according to an embodiment of the present application.
In the above drawings, reference numbers correspond to part names as follows:
1-motor end cover, 2-iron yoke, 3-motor bottom plate, 4-rotor support, 5-linear slide rail, 6-precision bearing, 7-bearing support, 8-linear swing motion output end, 9-linear slide block, 10-annular permanent magnet, 11-printed circuit board, 12-anti-collision rubber strip and 13 printed wire.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
In the present embodiment, a linear oscillating motor based on a printed circuit board 11 is provided, which includes a stator and a mover, and fig. 1a and 1b are schematic diagrams of three-dimensional structures of a linear oscillating motor using a printed circuit board as a mover according to an embodiment of the present application, where as shown in fig. 1a and 1b, the stator is a permanent magnet (e.g., an annular permanent magnet 10), and the stator is hollow; the mover is located in the hollow portion of the stator, and the mover includes: a printed circuit board 11, wherein a first surface of the printed circuit board 11 is printed with a first printed wire 13, a second surface of the printed circuit board 11 is printed with a second printed wire 13, the first surface and the second surface are opposite, the wiring direction of the first printed wire 13 is a first direction, the wiring direction of the second printed wire 13 is a second direction, and the first direction and the second direction are perpendicular; the motor further includes: the rotor comprises a rotor support 4 and a bearing 6, wherein one end of the rotor support 4 is connected with the rotor, the other end of the rotor support 4 penetrates through the bearing 6, the part penetrating through the bearing 6 is a linear swing motion output end 8, and the rotor support 4 can perform linear motion and swing motion under the driving of the rotor.
In the embodiment, the mover is a printed circuit board, and the wiring directions of the wires printed on both sides of the mover are different, so that two forces can be formed after the mover is powered on, and linear motion and swing motion are realized.
In an alternative embodiment, in order to increase the effect of the motor, there may be two printed circuit boards 11, and the mover further includes a support portion, where the two printed circuit boards 11 symmetrically fix two sides of the support portion, and a surface of the two printed circuit boards 11 fixed to the support portion is a second surface.
The shape of the stator may be various shapes, for example, the stator may be a hollow cylinder (e.g., a cylinder, etc.), the first direction is an axial direction of the cylinder, and the magnetizing direction of the stator is a radial direction of the cylinder.
The stator and the mover are key components of the motor, and after the structure of the stator and the mover is provided, other parts of the motor can be assembled as required. For example, in an alternative embodiment, the motor may further include: the stator is positioned in the hollow interior of the iron yoke 2, the iron yoke 2 is a column with the cross section shape identical to that of the stator, the motor end cover 1 is fixed at one end of the iron yoke 2, and the rotor support 4 and the bearing 6 extend out of the iron yoke 2 in the axial direction of the iron yoke 2. In order to assist the closing of the magnetic lines, a central shaft of the core material can also be arranged in the motor end cover 1.
In order to alleviate the damage caused by collision, in an alternative embodiment, an anti-collision rubber strip 12 is arranged at one end of the mover connected with the mover support 4 and/or one end of the mover close to the motor end cover 1. The crash strip can be made of many materials, for example, the crash strip 12 is made of non-magnetic rubber.
The motor may further include: the motor bottom plate 3, the iron yoke 2 and the motor end cover 1 are arranged on the motor bottom plate 3. In an alternative embodiment, the motor may further output a linear motion by means of a sliding rail, and in this alternative embodiment, the motor may further include: the linear sliding rail 5 is arranged on the motor base, the linear sliding rail 5 is arranged along the axial direction of the iron yoke 2, a sliding block 9 capable of sliding along the linear sliding rail 5 is arranged on the linear sliding rail 5, and a bearing support 7 used for fixing a bearing 6 is arranged on the sliding block 9.
A preferred embodiment is described below with reference to the accompanying drawings. Fig. 1a and 1b show three-dimensional structural schematic diagrams of a linear oscillating motor, fig. 2 shows a three-dimensional structural schematic diagram of an internal cross-sectional structure of the linear oscillating motor, fig. 3 shows a three-dimensional structural schematic diagram of a printed circuit board mover of the linear oscillating motor, fig. 4 shows a three-dimensional structural schematic diagram of a mover of the linear oscillating motor, fig. 5 shows a three-dimensional structural schematic diagram of a mover support, and fig. 6 shows a three-dimensional structural schematic diagram of a radially magnetized annular permanent magnet. As shown in fig. 1 to 6, the present embodiment includes: the device comprises a motor end cover 1, an iron yoke 2, a motor bottom plate 3, a rotor support 4, a linear slide rail 5, a precision bearing 6, a bearing support 7, a linear swing motion output end 8, a linear slide block 9, an annular permanent magnet 10, a printed circuit board rotor 11, an anti-collision rubber strip 12 and a printed wire 13. The motor base plate 3 is used for supporting the motor iron yoke 2, the printed circuit board mover 11, the mover support 4, the mover bearing and the guide rail. The stator of the linear swing motor consists of a motor end cover 1, an iron yoke and a radial magnetizing annular permanent magnet 10 and is fixed on a motor bottom plate 3. The rotor of the linear swing motor consists of two printed circuit boards, a rotor support 4 and an anti-collision rubber strip 12, is fixed on a precise linear slide block 9 through a low-friction precise bearing 6 to ensure the smoothness of linear/rotary motion, and an end cover of the casing is fixed with the casing through screws. The motor drives the motor rotor to move by utilizing Lorentz force, and the synthetic output end of the whole linear swing motion is arranged outside the shell.
The principle of the linear oscillating motor will be described below with reference to the accompanying drawings.
First, linear motion is generated. A radial magnetizing annular permanent magnet 10 is arranged in the stator, and the direction from the rotor to the stator is temporarily set as the magnetizing direction. As shown in fig. 4, the printed wire 13 responsible for generating the linear thrust is parallel to the circular cross section, and when a direct current is applied, the applied wire receives a force perpendicular to the paper surface as understood from the lorentz force principle F — BIL. Under the action of the force, the mover moves linearly.
The advancing and positioning of the linear motion are realized by controlling the on-off and the direction of the current in the linear motion printing lead 13. The excitation magnetic field of the secondary permanent magnet of the motor is vertical to the current direction in the printed wire 13, and the Lorentz force generated by the interaction of the magnetic field and the direct current is vertical to the magnetic line of force and the effective edge of the linear motion printed wire 13 according to the right-hand spiral rule. When a certain amount of direct current is introduced into the winding, the linear motion printed conductor 13 is subjected to a constant lorentz force; when the direct current introduced into the winding changes, the Lorentz force borne by the linear motion printed wire 13 changes; when the direction of the direct current introduced into the winding is changed, the direction of the Lorentz force borne by the linear motion printed conductor 13 is changed, and the winding moves towards the opposite direction; when no current is applied to the windings, the linear motion printed conductor 13 is not stressed and is stationary.
The generation of the oscillating movement is then completed by energizing the oscillating movement printed conductors 13 perpendicular to the circular section shown in figure 4. Assuming that the oscillating printed conductors 13 are fed with a direct current flowing inward perpendicular to the paper surface, and the permanent magnet excitation direction is still the direction from the mover to the stator, it can be known from the lorentz force principle F-BIL that the oscillating printed conductors 13 are all subjected to a clockwise force. Under the action of the force, the rotor performs swing motion.
The movement and positioning of the oscillating movement are realized by controlling the on-off and direction of the current in the oscillating movement printed conductor 13. The excitation magnetic field of the secondary permanent magnet of the motor is vertical to the current direction in the winding, and the Lorentz force generated by the interaction of the magnetic field and the direct current is vertical to the magnetic line of force and the effective edge of the swing motion printed conductor 13 according to the right-hand spiral rule. When a certain amount of direct current is introduced into the winding, the oscillating movement printed conductor 13 is subjected to a constant lorentz force; when the direct current introduced into the winding changes, the Lorentz force borne by the swinging motion printed wire 13 changes; when the direction of the direct current introduced into the winding is changed, the direction of the Lorentz force borne by the swinging printed conductor 13 is changed, and the winding rotates in the opposite direction; when no current is applied to the windings, the oscillating moving printed conductor 13 is not stressed and is stationary.
The motor rotor consists of three components: two printed circuit boards, a rotor bracket 4 and an anti-collision rubber strip 12. The anti-collision rubber strip 12 is made of non-magnetic conductive rubber materials, is used as a rotor anti-collision ring, and plays a role in magnetic isolation, magnetic leakage prevention and printed circuit board fixation. The rotor support 4 is made of non-magnetic light materials and plays a role in supporting the two printed circuit boards. The support part described above may be understood as a part of the mover carriage.
If the motor is required to simultaneously complete the linear motion and the swing motion, the linear motion printed conductor 13 and the swing motion printed conductor 13 need to be electrified simultaneously, and the electrifying directions of the two groups of printed conductors 13 are mutually vertical and do not interfere with each other.
Most of linear oscillating motors can only do single linear motion or single rotary motion, and the novel linear oscillating motor in the embodiment can realize the simultaneous linear motion and oscillating motion; the linear motion and the swing motion share the same magnetic field, but can be completely decoupled, so that the mutual influence of the linear motion magnetic field and the swing motion magnetic field in the operation of the motor is avoided.
The motor in the embodiment provides support for the motor rotor in a mode of combining the precision bearing and the linear guide rail, and the motor end cover is internally provided with the middle shaft made of iron core materials to assist the closing of magnetic lines of force. In the embodiment, the linear swing motor adopts the printed circuit board as the motor rotor, so that the mass of the rotor is greatly reduced, the motion inertia of the motor rotor is extremely low, the motion acceleration is extremely high, and the dynamic response of the high-efficiency high-precision machining system is fundamentally improved. The novel linear oscillating motor adopts the excitation of the whole annular permanent magnet, the radial magnetization is realized, the magnetic field in the motor is very uniform, and the novel linear oscillating motor is suitable for a multidimensional precise motion platform.
Various modifications and changes may be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (10)

1. A linear swinging motor based on a printed circuit board comprises a stator and a rotor, and is characterized in that,
the stator is a permanent magnet and is hollow;
the mover is located in the hollow portion of the stator, and the mover includes: the printed circuit board comprises a printed circuit board, a first printed wire and a second printed wire, wherein the first printed wire is printed on a first surface of the printed circuit board, the second printed wire is printed on a second surface of the printed circuit board, the first surface and the second surface are opposite, the wiring direction of the first printed wire is a first direction, the wiring direction of the second printed wire is a second direction, and the first direction is vertical to the second direction;
the motor further includes: the rotor support is driven by the rotor to perform linear motion and swing motion.
2. The motor of claim 1, wherein the number of the printed circuit boards is two, the mover further includes a support portion, the two printed circuit boards are symmetrically fixed to both sides of the support portion, and a surface of the two printed circuit boards fixed to the support portion is the second surface.
3. The motor of claim 2, wherein the stator is a hollow cylinder, the first direction is an axial direction of the cylinder, and the magnetizing direction of the stator is a radial direction of the cylinder.
4. The motor of claim 3, wherein the stator is a hollow cylinder.
5. The motor according to any one of claims 1 to 4, further comprising: the stator is located inside the hollow portion of the iron yoke, the iron yoke is a column body with the cross section shape identical to that of the stator, the motor end cover is fixed to one end of the iron yoke, and the rotor support and the bearing extend out of the iron yoke in the axial direction of the iron yoke.
6. The motor of claim 5, wherein the motor end cap has a central axis of core material disposed therein.
7. The motor according to claim 5, wherein an end of the mover connected to the mover support and/or an end of the mover near the motor end cover is provided with an anti-collision rubber strip.
8. The motor of claim 7, wherein the crash-resistant rubber strip is made of non-magnetically permeable rubber.
9. The motor of claim 5, further comprising: the motor bottom plate, the yoke iron with the motor end cover sets up on the motor bottom plate.
10. The motor of claim 9, further comprising: the linear sliding rail is arranged on the motor base and along the axial direction of the iron yoke, a sliding block capable of sliding along the linear sliding rail is arranged on the linear sliding rail, and a bearing support used for fixing the bearing is arranged on the sliding block.
CN202110781401.5A 2021-07-11 2021-07-11 Linear oscillating motor based on printed circuit board Active CN113595290B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110781401.5A CN113595290B (en) 2021-07-11 2021-07-11 Linear oscillating motor based on printed circuit board

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Application Number Priority Date Filing Date Title
CN202110781401.5A CN113595290B (en) 2021-07-11 2021-07-11 Linear oscillating motor based on printed circuit board

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CN113595290A true CN113595290A (en) 2021-11-02
CN113595290B CN113595290B (en) 2022-05-27

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001258192A (en) * 2000-03-09 2001-09-21 Mitsubishi Electric Corp Winding stator and its manufacture
JP2007006637A (en) * 2005-06-24 2007-01-11 Konica Minolta Medical & Graphic Inc Linear motor
CN205319905U (en) * 2016-01-19 2016-06-15 河南理工大学 Straight line - rotating electrical machines
CN112234784A (en) * 2020-09-28 2021-01-15 湖南大学 Linear rotating motor for SMD picking and mounting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001258192A (en) * 2000-03-09 2001-09-21 Mitsubishi Electric Corp Winding stator and its manufacture
JP2007006637A (en) * 2005-06-24 2007-01-11 Konica Minolta Medical & Graphic Inc Linear motor
CN205319905U (en) * 2016-01-19 2016-06-15 河南理工大学 Straight line - rotating electrical machines
CN112234784A (en) * 2020-09-28 2021-01-15 湖南大学 Linear rotating motor for SMD picking and mounting

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