CN111478469A - Outer rotor motor for sewing machine - Google Patents

Outer rotor motor for sewing machine Download PDF

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Publication number
CN111478469A
CN111478469A CN202010379886.0A CN202010379886A CN111478469A CN 111478469 A CN111478469 A CN 111478469A CN 202010379886 A CN202010379886 A CN 202010379886A CN 111478469 A CN111478469 A CN 111478469A
Authority
CN
China
Prior art keywords
wiring
hall
rotor
sewing machine
encoder
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.)
Pending
Application number
CN202010379886.0A
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Chinese (zh)
Inventor
李朝鹏
黄昭华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qixing Intelligent Technology Co Ltd
Original Assignee
Qixing Intelligent Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Qixing Intelligent Technology Co Ltd filed Critical Qixing Intelligent Technology Co Ltd
Priority to CN202010379886.0A priority Critical patent/CN111478469A/en
Publication of CN111478469A publication Critical patent/CN111478469A/en
Pending legal-status Critical Current

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    • 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
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • 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
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/46—Fastening of windings on the stator or rotor structure
    • H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)

Abstract

The application provides outer rotor electric machine for sewing machine, concretely relates to sewing machine makes technical field. The utility model provides an external rotor electric machine for sewing machine is including sewing aircraft nose, wiring stator, main shaft and external rotor, still including wiring encoder, rotor and stop collar, wiring stator fix at the stop collar, the external rotor cover establish and fix on the main shaft, the rotor cover establish and fix on the main shaft that wiring stator is close to sewing aircraft nose one side, the rotor installation be fixed with the magnet steel, the wiring encoder have hall one, hall two, hall three and location hall, location hall and the relative supporting setting of magnet steel, hall one, hall two and the three setting of hall between wiring stator and external rotor. Divide into stator module and outer rotor module with the outer rotor motor and realized assembling high efficiency, under the same cost, the outer rotor motor of this application is more than inner rotor motor's efficient, torsion, has higher application prospect.

Description

Outer rotor motor for sewing machine
Technical Field
The application provides outer rotor electric machine for sewing machine, concretely relates to sewing machine makes technical field.
Background
The existing inner rotor motor needs to be increased by increasing the thicknesses of winding coils and magnetic steel for the over-thick capability, and the torque force of the outer rotor motor is large at a low speed ratio under the same cost. Although the inner rotor servo motor used by people at present can achieve higher efficiency, the outer rotor can achieve higher efficiency, and the inner rotor servo motor needs to be improved in motor intelligent control.
Disclosure of Invention
The technical problem that this application will solve lies in providing the outer rotor motor for the sewing machine to the existence in the above-mentioned existing motor technique is not enough to reach sewing machine motor intelligent control's purpose.
The utility model provides an external rotor electric machine for sewing machine is including sewing aircraft nose, wiring stator, main shaft and external rotor, wiring stator install inside the external rotor, its characterized in that still including wiring encoder, rotor and stop collar, wiring stator fix on the stop collar, the external rotor cover establish and fix on the main shaft, the rotor cover establish and fix on the main shaft that wiring stator is close to sewing aircraft nose one side, the rotor installation be fixed with the magnet steel, wiring encoder have hall one, hall two, hall three and location hall, location hall and magnet steel supporting setting relatively, hall one, hall two and hall three set up between wiring stator and external rotor.
Fix at above-mentioned wiring stator at the stop collar, the wiring stator of this application is provided with several fixed through hole, foretell stop collar be provided with wiring stator assorted several axial fixity screw, the wiring stator have the bolt fastening on the stop collar. The limiting sleeve is provided with a notch, and the wiring encoder is positioned in the notch of the limiting sleeve. The outer rotor is sleeved and fixed on the main shaft, the outer rotor is provided with an axial through hole, the main shaft is provided with a screw hole matched with the through hole of the outer rotor, and the outer rotor is arranged on the wiring stator and fixed on the main shaft through screws.
The rotor is fixedly arranged on the main shaft of the wiring stator close to one side of the sewing machine head, the rotor and the main shaft are combined into a whole, the rotor rotates along with the rotation of the main shaft, the rotor is provided with a magnetic steel installation cavity, the magnetic steel is fixed in the installation cavity, the rotor is arranged inside the limiting sleeve, and the rotor rotates inside the limiting sleeve.
The wiring encoder is provided with a plurality of Hall devices and positioning Hall devices, the Hall devices are arranged on the wiring encoder and close to the outer edge of the circular arc, the wiring encoder is fixedly connected with the wiring stator, the wiring encoder is fixed, and the Hall devices are arranged between the wiring stator and the outer rotor and abut against the adjacent motor running magnetic steel with the outer rotor. The location hall sets up and is close to rotor one side at the wiring encoder, the location hall support by adjacent magnet steel that has with the rotor.
In above-mentioned wiring encoder had hall one, hall two, hall three and location hall, hall one, hall two and hall three set up and be close to the circular arc outward flange at the wiring encoder and regard as one of the preferred scheme of this application, wiring encoder and wiring stator fixed connection, the wiring encoder fixed motionless, hall one, hall two and hall three between wiring stator and external rotor and support by the motor operation magnet steel that adjacent and external rotor had. The location hall set up and be close to rotor one side at the wiring encoder, the location hall support by adjacent magnet steel that has with the rotor, three actuating motor rotational speed control record of hall one, hall two and hall, location hall actuating motor rotational speed control record. As another proposal, the stop collar and the sewing machine head are combined into a whole. The sewing machine head is provided with a supporting part and a notch, the wiring stator is fixed on the sewing machine head and supported on the supporting part, and the wiring encoder is positioned in the notch of the sewing machine head. The magnetic steel is arranged on the main shaft in an optimized scheme, the main shaft is provided with an installation cavity for installing the magnetic steel, and the magnetic steel abuts against a positioning Hall adjacent to the wiring encoder.
The outer rotor motor for the sewing machine is arranged on an outer rotor motor installation part arranged on a sewing machine head, and a stator module is formed after the wiring stator is fixedly connected with the wiring encoder; the motor running magnetic steel is well installed inside the outer rotor to form an outer rotor module, the stator module is installed and fixed on the rotor, the outer rotor module is installed and fixed on the main shaft, the outer rotor drives the main shaft of the sewing machine to rotate after the outer rotor motor is electrified, and therefore the outer rotor motor can be conveniently installed on an outer rotor motor installation portion, the assembly efficiency of production is improved, the outer rotor motor is equivalent to the existing common motor, and the outer rotor motor has higher torque and improves the performance of the motor.
Compared with the prior art, the beneficial effects of this application are: the motor stopping position can be very accurately judged through the positioning Hall on the wiring encoder and the magnetic steel arranged on the rotor, so that the program control motor has specific position data; the rotating speed of the motor is recorded by the plurality of Hall sensors on the wiring encoder, the real-time control of the motor is effectively realized, the outer rotor motor is divided into the stator module and the outer rotor module, the assembly efficiency is high, the outer rotor motor is higher in efficiency and torsion than the inner rotor motor under the same cost, and the application prospect is high.
Drawings
FIG. 1 is a schematic structural view of an outer rotor motor for a sewing machine according to the present application;
FIG. 2 is an assembly view of an outer rotor motor for a sewing machine of the present application;
FIG. 3 is an internal configuration view of an external rotor motor for a sewing machine of the present application;
fig. 4 is an exploded view of a wiring encoder of the outer rotor motor for the sewing machine of the present application.
In the drawings, the reference numbers: 1. an outer rotor motor; 2. a sewing machine head; 21. an outer rotor motor mounting section; 22. an abutting portion; 3. an outer rotor; 4. a wiring stator; 5. a main shaft; 6. a wiring encoder; 61. hall I; 62. a second Hall element; 63. hall III; 64. positioning a Hall device; 7. magnetic steel; 8. a limiting sleeve; 9. and a rotor.
Detailed Description
Preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings so that the advantages and features of the application can be more readily understood by those skilled in the art, and thus the scope of the application will be more clearly and clearly defined.
Example one
In the attached drawings, the external rotor motor for the sewing machine comprises a sewing machine head 2, a wiring stator 4, a main shaft 5 and an external rotor 3, and is characterized by further comprising a wiring encoder 6, a rotor 9 and a limiting sleeve 8, wherein the wiring stator 4 is fixed on the limiting sleeve 8, the external rotor 3 is arranged and fixed on the main shaft 5, the rotor 9 is arranged and fixed on the main shaft 5, close to one side of the sewing machine head 2, of the wiring stator 4, a magnetic steel 7 is fixedly arranged on the rotor 9, the wiring encoder 6 is provided with a first Hall 61, a second Hall 62, a third Hall 63 and a positioning Hall 64, the positioning Hall 64 is arranged in a matching manner relative to the magnetic steel 7, and the first Hall 61, the second Hall 62 and the third Hall 63 are arranged between the wiring stator 4 and the external rotor 3.
Fix on stop collar 8 at above-mentioned wiring stator 4, the wiring stator 4 of this application is provided with several fixed through hole, foretell stop collar 8 be provided with wiring stator 4 assorted several axial fixity screw, wiring stator 4 have the bolt fastening on stop collar 8. The limiting sleeve 8 is provided with a notch 23, and the wiring encoder 6 is positioned in the notch 23 of the limiting sleeve 8. The outer rotor 3 is sleeved and fixed on a main shaft 5, the outer rotor 3 is provided with an axial through hole, the main shaft 5 is provided with a screw hole matched with the through hole of the outer rotor 3, and the outer rotor 3 is arranged on a wiring stator 4 and fixed on the main shaft 5 through screws.
Set up at above-mentioned rotor 9 and fix on wiring stator 4 is close to main shaft 5 of sewing machine head 2 one side, rotor 9 and main shaft 5 close as an organic whole, rotor 9 rotates along with main shaft 5, rotor 9 the installation intracavity that has magnet steel 7, magnet steel 7 fix in the installation cavity, rotor 9 set up inside stop collar 8, rotor 9 rotates in stop collar 8 is inside.
Have several hall and location hall 64 at above-mentioned wiring encoder 6, the several hall sets up and is close to the circular arc outward flange at wiring encoder 6, wiring encoder 6 and wiring stator 4 fixed connection, wiring encoder 6 rigid, the several hall sets up and leans on adjacent motor operation magnet steel that has with outer rotor 3 between wiring stator 4 and outer rotor 3. The positioning Hall 64 is arranged on one side, close to the rotor 9, of the wiring encoder 6, and the positioning Hall 64 abuts against the adjacent magnetic steel 7 with the rotor 9.
The outer rotor motor for the sewing machine is arranged on an outer rotor motor installation part 21 of a sewing machine head 2, and a stator module is formed after the wiring stator 4 is fixedly connected with a wiring encoder 6; the motor running magnetic steel is installed inside the outer rotor 3 to form an outer rotor module, the stator module is installed and fixed on the rotor 9, then the outer rotor module is installed and fixed on the spindle 5, the outer rotor 3 drives the sewing machine spindle 5 to rotate after the outer rotor motor 1 is electrified, and therefore the outer rotor motor 1 can be conveniently installed on the outer rotor motor installation portion 21, the assembly efficiency of production is improved, the outer rotor motor is equivalent to the existing common motor, and the outer rotor motor has higher torque and improves the performance of the motor.
Example two
The second embodiment of the present application is substantially the same as the first embodiment, except that the position-limiting sleeve 8 is integrated with the sewing machine head 2. The sewing machine head 2 is provided with an abutting part 22 and a gap 23, the wiring stator 4 is fixed on the sewing machine head 2 and abuts against the abutting part 22, and the wiring encoder 6 is positioned in the gap 23 of the sewing machine head 2.
EXAMPLE III
The third embodiment of the application is basically the same as the second embodiment of the first embodiment, and the difference lies in that the magnetic steel 7 is arranged on the main shaft 5, the main shaft 5 is provided with an installation cavity for installing the magnetic steel 7, and the magnetic steel 7 abuts against the adjacent positioning hall 64 with the wiring encoder 6.
Example four
The fourth embodiment of the present application is substantially the same as the second embodiment of the first embodiment, except that the wiring encoder 6 has a first hall element 61, a second hall element 62, a third hall element 63 and a positioning hall element 64, the first hall element 61, the second hall element 62 and the third hall element 63 are disposed on the wiring encoder 6 near the outer edge of the circular arc, the wiring encoder 6 is fixedly connected with the wiring stator 4, the wiring encoder 6 is fixed, and the first hall element 61, the second hall element 62 and the third hall element 63 are disposed between the wiring stator 4 and the outer rotor 3 and abut against the adjacent motor running magnetic steel of the outer rotor 3. The positioning Hall 64 is arranged on one side, close to the rotor 9, of the wiring encoder 6, and the positioning Hall 64 abuts against the adjacent magnetic steel 7 with the rotor 9.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. The outer rotor motor for the sewing machine comprises a sewing machine head, a wiring stator, a main shaft and an outer rotor, wherein the wiring stator is arranged inside the outer rotor, and the outer rotor motor is characterized by further comprising a wiring encoder, a rotor and a limiting sleeve, the wiring stator is fixed on the limiting sleeve, the limiting sleeve is provided with a notch, the outer rotor is arranged and fixed on the main shaft, the rotor sleeve is arranged and fixed on the main shaft at one side of the wiring stator close to the sewing machine head, the rotor is arranged inside the limiting sleeve, the rotor is provided with magnetic steel, the wiring encoder is provided with a plurality of Hall devices and positioning Hall devices, the wiring encoder is fixedly connected with the wiring stator, the Hall devices are arranged between the wiring stator and the outer rotor and abut against the adjacent motor running magnetic steel of the, the location hall set up and be close to rotor one side at the wiring encoder, the location hall support by adjacent magnet steel that has with the rotor, hall executive motor rotational speed control record.
2. The external rotor electric machine for sewing machine of claim 1, wherein the wiring encoder is fixed, and the plurality of hall sensors are disposed on the wiring encoder near the outer edge of the circular arc.
3. The external rotor motor for the sewing machine according to claim 1, wherein the wiring encoder has a first hall, a second hall, a third hall and a positioning hall, the positioning hall and the magnetic steel are relatively arranged in a matched manner, the first hall, the second hall and the third hall are arranged between the wiring stator and the external rotor, the positioning hall is arranged on one side of the wiring encoder close to the rotor, and the positioning hall abuts against the adjacent rotor and has the magnetic steel.
4. The external rotor motor for the sewing machine of claim 3, wherein the first hall, the second hall and the third hall are arranged at the wiring encoder close to the outer edge of the circular arc, the wiring encoder is fixedly connected with the wiring stator, the wiring encoder is fixed, and the first hall, the second hall and the third hall are arranged between the wiring stator and the external rotor and abut against the motor running magnetic steel of the adjacent external rotor.
5. An external rotor motor for a sewing machine according to claim 1, 2, 3 or 4, wherein the wiring encoder is located in a notch of the stop collar.
6. The external rotor electric machine for sewing machine of claim 1, wherein the wiring stator is provided with a plurality of fixing through holes, the limit sleeve is provided with a plurality of axial fixing screw holes matched with the wiring stator, the wiring stator is fixed on the limit sleeve by bolts, the external rotor is provided with an axial through hole, the main shaft is provided with a screw hole matched with the external rotor through hole, and the external rotor sleeve is fixed on the main shaft by screws for the wiring stator.
7. The external rotor motor for the sewing machine of claim 1 or 6, wherein the rotor is integrated with the main shaft, the rotor has a mounting cavity for magnetic steel, and the magnetic steel is fixed in the mounting cavity.
8. The external rotor motor for the sewing machine of claim 1, further comprising an external rotor motor mounting portion, wherein the wiring stator is fixedly connected to the wiring encoder to form a stator module, and the external rotor is internally mounted with motor running magnetic steel to form an external rotor module.
9. The external rotor electric machine for sewing machine of claim 1, wherein the stop collar is integrated with the sewing machine head, the sewing machine head has an abutting portion and a notch, the wiring stator is fixed on the abutting portion of the sewing machine head, and the wiring encoder is located in the notch of the sewing machine head.
10. The external rotor motor for the sewing machine of claim 1, wherein the magnetic steel is arranged on a main shaft, the main shaft is provided with a mounting cavity for mounting the magnetic steel, and the magnetic steel abuts against a positioning hall adjacent to the wiring encoder.
CN202010379886.0A 2020-05-08 2020-05-08 Outer rotor motor for sewing machine Pending CN111478469A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010379886.0A CN111478469A (en) 2020-05-08 2020-05-08 Outer rotor motor for sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010379886.0A CN111478469A (en) 2020-05-08 2020-05-08 Outer rotor motor for sewing machine

Publications (1)

Publication Number Publication Date
CN111478469A true CN111478469A (en) 2020-07-31

Family

ID=71757294

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010379886.0A Pending CN111478469A (en) 2020-05-08 2020-05-08 Outer rotor motor for sewing machine

Country Status (1)

Country Link
CN (1) CN111478469A (en)

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