CN108964398A - A kind of side circular hole formula high power density joint permanent magnetic brushless - Google Patents
A kind of side circular hole formula high power density joint permanent magnetic brushless Download PDFInfo
- Publication number
- CN108964398A CN108964398A CN201810779449.0A CN201810779449A CN108964398A CN 108964398 A CN108964398 A CN 108964398A CN 201810779449 A CN201810779449 A CN 201810779449A CN 108964398 A CN108964398 A CN 108964398A
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- hall
- rotor
- circular hole
- power density
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
- H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
- H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
Abstract
The invention discloses a kind of side circular hole formula high power density joint permanent magnetic brushless, the motor includes hollow multi-pole permanent-magnetic rotor and multi phase stator, in which: the multi phase stator includes stator core, multi phase stator winding, hall circuitboard and Hall element；The hollow multi-pole permanent-magnetic rotor includes rotor core, rotor main pole magnet steel and Hall detection magnet steel；The end of the rotor core is equidistantly drilled with multiple circular holes along circumferential direction, and Hall is embedded in circular hole and detects magnet steel, and the Hall detection magnet steel aligns and identical as the main magnet steel polarity of rotor with the main magnet steel of rotor.The present invention is embedded in Hall detection magnet steel by the way of rotor tip aperture, can reduce magneto axial length, to reduce motor volume.Meanwhile aperture can guarantee that the installation of Hall detection magnet steel is accurately positioned, so that motor be made to obtain accurate location information, commutation is accurate, and positive and negative rotation is overproof small, guarantees the Hall element position detection accuracy in small size motor.
Description
Technical field
The invention belongs to technical field of motors, are related to a kind of high power density compact permanent magnetic brushless.
Background technique
Country greatly develops industry 4.0 and plans at present, also proposed specific developing goal to Robot industry.Robot
Joint electric drive key technology includes joint motor technology, retarder technology, joint drive controller technology three parts.At present I
State relies primarily on imported product in these three fields.Joint motor is the heart in joint, volume size, power density size,
Torque fluctuations size and temperature rise situation directly affect the working condition in joint.Meanwhile in space field, electromagnetic drive is in space
Field has great advantage, completely instead of hydraulic driving mode.Space mechanism swivel of hand is that space engineering must with driving motor
Standby important device, auxiliary spacefarer complete high-precision transport and maintenance work.The design requirement of mechanical arm be it is high-intensitive,
High reliability flexibly works and has volume and weight light as far as possible.
Motor is as electromagnetic drive important core equipment, and there are many technological difficulties in design and craft.Wherein it is directed to
High reliability, high efficiency, high controllability, loss of weight etc. have all carried out corresponding program analysis compared with.It is led since motor uses
Magnetic ferromagnetic material and electric conductivity electromagnetic material are main composition, and the reduction of weight, which is only capable of being embodied in, to be increased in energy density,
Therefore selecting magneto is ideal scheme.Use the appropriate motor speed that increases to reduce the method for motor volume simultaneously, simultaneously
It is equipped with deceleration device appropriate and reaches comprehensive volume and weight minimum design.
In order to reduce weight for motor and position sensor integrated design, and one of research hotspot at present.
Summary of the invention
Small weight, small size and the reliability of motor in order to balance is solved when motor size is special small, and Hall sensor is set
Meter and the Highgrade integration of motor integration design design, and the present invention provides a kind of side circular hole formula high power density joint use
Permanent magnetic brushless.The present invention uses special Hall magnet steel installation and detection method, largely reduces same power motor
Axial length, while embedded magnet steel can be positioned with accurate mechanical.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of side circular hole formula high power density joint permanent magnetic brushless, including hollow multi-pole permanent-magnetic rotor and multiphase are determined
Son, in which:
The multi phase stator includes stator core, multi phase stator winding, hall circuitboard and Hall element；
The hollow multi-pole permanent-magnetic rotor includes rotor core, rotor main pole magnet steel and Hall detection magnet steel；
The end of the rotor core is equidistantly drilled with multiple circular holes along circumferential direction, embeds Hall in circular hole and detects magnet steel, institute
The main magnet steel of Hall detection magnet steel and rotor is stated to align and identical as the main magnet steel polarity of rotor.
Compared with the prior art, the present invention has the advantage that
The present invention is embedded in Hall detection magnet steel by the way of rotor tip aperture, can reduce magneto axial length, from
And reduce motor volume.Meanwhile aperture can guarantee that the installation of Hall detection magnet steel is accurately positioned, so that it is accurate to obtain motor
Location information, commutation is accurate, and positive and negative rotation is overproof small, guarantees the Hall element position detection accuracy in small size motor.
Detailed description of the invention
Fig. 1 is the overall structure figure of permanent magnetic brushless of the present invention；
Fig. 2 is rotor end-face structural schematic diagram；
In figure: 1- stator winding, 2- stator core, 3- patch type hall circuitboard, 4- patch type Hall element, the main magnetic of 5- rotor
Steel, 6- rotor core, 7- Hall detect magnet steel.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawing, and however, it is not limited to this, all to this
Inventive technique scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered
Within the protection scope of the present invention.
Magnet steel compact permanent magnetic brushless, such as Fig. 1 are detected using side circle Hall present embodiments provide for a kind of
Shown in 2, the compact permanent magnetic brushless includes hollow multi-pole permanent-magnetic rotor and multi phase stator, in which:
The hollow multi-pole permanent-magnetic rotor includes rotor core 6, rotor main pole magnet steel 5 and Hall detection magnet steel 7, the rotor iron
The outer surface circumferential direction spaced set of the heart 6 has multiple rotor main pole magnet steel 5, and a side end of the rotor core 6 is circumferentially square
To multiple round holes are equidistantly drilled with, Hall is embedded in round hole and detects magnet steel 7, the Hall detection magnet steel 7 and the main magnetic of rotor
The contraposition of steel 5 and identical as main 5 polarity of magnet steel of rotor, the polarity of adjacent Hall detection magnet steel 7 is opposite.
The multi phase stator includes stator core 2, multi phase stator winding 1, hall circuitboard 3 and Hall element 4, described fixed
Sub- iron core 2 is sheathed on the circumference of rotor core 6, and multi phase stator winding 1, the end face of stator core 2 are radially wound on stator core 2
Equipped with patch type hall circuitboard 3, patch type Hall element 4 is provided on the patch type hall circuitboard 3.
Working principle: detecting rotor-position by Hall element and it is logical to carry out commutation guarantee motor to electric current in stator winding
With continuous current to generate lasting electromagnetic torque.
The present invention is to save motor axial length, and using patch type Hall, compared with other similar motors, the present invention has
Following evident characteristic:
(1) Hall detection magnet steel is located at rotor side surface；
(2) Hall detection magnet steel is round magnet steel；
(3) Hall detection magnet steel mounting means is embedded.
Specifically the production method is as follows:
(1) Hall detection magnet steel is processed into thin rounded flakes shape and magnetized；
(2) rotor tip is uniformly bored into round hole, the size of round hole, which is subject to, puts down Hall detection magnet steel；By Hall detection magnetic
Steel bonding is put into round hole；
(3) patch type hall circuitboard mounting means is made in hall circuitboard；
(4) patch type hall circuitboard is placed in stator side；
(5) patch type Hall element can detect magnet steel with the embedded Hall of face.
The present invention is embedded in Hall detection magnet steel by the way of rotor tip aperture, and Hall detects magnet steel accurate positioning, opens
Hole precision can guarantee preferably, therefore for motor small in size, Hall detection accuracy is high, and motor positive and inverse speed error is small.
In addition, the present invention uses patch type Hall element, patch type hall circuitboard, motor axial dimension can be reduced in this way, for
Magneto small in size can reduce motor volume by a relatively large margin.
Claims (7)
1. a kind of side circular hole formula high power density joint permanent magnetic brushless, including hollow multi-pole permanent-magnetic rotor and multiphase are determined
Son, in which:
The multi phase stator includes stator core, multi phase stator winding, hall circuitboard and Hall element；
The hollow multi-pole permanent-magnetic rotor includes rotor core, rotor main pole magnet steel and Hall detection magnet steel；
It is characterized by:
The end of the rotor core is equidistantly drilled with multiple round holes along circumferential direction, embeds Hall detection magnetic in round hole
Steel.
2. circular hole formula high power density in side according to claim 1 joint permanent magnetic brushless, it is characterised in that institute
The main magnet steel of Hall detection magnet steel and rotor is stated to align and identical as the main magnet steel polarity of rotor.
3. circular hole formula high power density in side according to claim 1 joint permanent magnetic brushless, it is characterised in that institute
Stating Hall detection magnet steel is thin rounded flakes.
4. circular hole formula high power density in side according to claim 1 or 3 joint permanent magnetic brushless, it is characterised in that
The Hall detection magnet steel is bonded in round hole.
5. circular hole formula high power density in side according to claim 1 joint permanent magnetic brushless, it is characterised in that institute
The polarity for stating adjacent Hall detection magnet steel is opposite.
6. circular hole formula high power density in side according to claim 1 joint permanent magnetic brushless, it is characterised in that institute
Stating Hall element is patch type Hall element.
7. circular hole formula high power density in side according to claim 1 joint permanent magnetic brushless, it is characterised in that institute
Stating hall circuitboard is patch type hall circuitboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779449.0A CN108964398A (en) | 2018-07-16 | 2018-07-16 | A kind of side circular hole formula high power density joint permanent magnetic brushless |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810779449.0A CN108964398A (en) | 2018-07-16 | 2018-07-16 | A kind of side circular hole formula high power density joint permanent magnetic brushless |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108964398A true CN108964398A (en) | 2018-12-07 |
Family
ID=64495933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810779449.0A Pending CN108964398A (en) | 2018-07-16 | 2018-07-16 | A kind of side circular hole formula high power density joint permanent magnetic brushless |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108964398A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620530A (en) * | 2019-09-30 | 2019-12-27 | 浙江众邦机电科技有限公司 | Positioning control method, device, equipment and medium for stepping motor |
| CN110880838A (en) * | 2019-11-25 | 2020-03-13 | 珠海英搏尔电气股份有限公司 | Device and method for detecting temperature of permanent magnet of rotor of permanent magnet synchronous motor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327212A (en) * | 1993-05-12 | 1994-11-25 | Matsushita Electric Ind Co Ltd | Rotor of brushless motor |
| JPH08275462A (en) * | 1995-03-27 | 1996-10-18 | Kusatsu Denki Kk | Motor with speed sensor |
| CN101944813A (en) * | 2010-09-26 | 2011-01-12 | 沈阳工业大学 | Outer rotor direct-drive permanent magnet synchronous motor for belt conveyer |
| CN102792558A (en) * | 2010-03-10 | 2012-11-21 | 三菱电机株式会社 | Electric motor rotor, electric motor, air conditioner, and production method for electric motor rotor |
| CN105703508A (en) * | 2016-04-22 | 2016-06-22 | 三门峡速达交通节能科技股份有限公司 | Disk type motor rotor with built-in magnetic steel |
-
2018
- 2018-07-16 CN CN201810779449.0A patent/CN108964398A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06327212A (en) * | 1993-05-12 | 1994-11-25 | Matsushita Electric Ind Co Ltd | Rotor of brushless motor |
| JPH08275462A (en) * | 1995-03-27 | 1996-10-18 | Kusatsu Denki Kk | Motor with speed sensor |
| CN102792558A (en) * | 2010-03-10 | 2012-11-21 | 三菱电机株式会社 | Electric motor rotor, electric motor, air conditioner, and production method for electric motor rotor |
| CN101944813A (en) * | 2010-09-26 | 2011-01-12 | 沈阳工业大学 | Outer rotor direct-drive permanent magnet synchronous motor for belt conveyer |
| CN105703508A (en) * | 2016-04-22 | 2016-06-22 | 三门峡速达交通节能科技股份有限公司 | Disk type motor rotor with built-in magnetic steel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110620530A (en) * | 2019-09-30 | 2019-12-27 | 浙江众邦机电科技有限公司 | Positioning control method, device, equipment and medium for stepping motor |
| CN110880838A (en) * | 2019-11-25 | 2020-03-13 | 珠海英搏尔电气股份有限公司 | Device and method for detecting temperature of permanent magnet of rotor of permanent magnet synchronous motor |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |