CN201163742Y - Brushless DC motor of electronic commutator - Google Patents

Brushless DC motor of electronic commutator Download PDF

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Publication number
CN201163742Y
CN201163742Y CNU2008201035188U CN200820103518U CN201163742Y CN 201163742 Y CN201163742 Y CN 201163742Y CN U2008201035188 U CNU2008201035188 U CN U2008201035188U CN 200820103518 U CN200820103518 U CN 200820103518U CN 201163742 Y CN201163742 Y CN 201163742Y
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CN
China
Prior art keywords
stator
links
triode
rotor
magnetic pole
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.)
Expired - Fee Related
Application number
CNU2008201035188U
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Chinese (zh)
Inventor
王广盛
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Individual
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Individual
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Filing date
Publication date
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Priority to CNU2008201035188U priority Critical patent/CN201163742Y/en
Application granted granted Critical
Publication of CN201163742Y publication Critical patent/CN201163742Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an electronic commutator brushless DC motor, wherein an axial horizontal inner wall of a stator is symmetrically provided with two stator magnetic poles with coils; both coils are connected at one end; a rotor is positioned between the two stator magnetic poles; an axial horizontal outer wall of the rotor is symmetrically provided with two rotor magnetic poles; an upper magnetic induction sensor and a lower magnetic induction sensor are respectively arranged above and under an electric machine casing; the upper magnetic induction sensor is connected with the base electrodes of two triodes; the emitter electrode of one triode is connected with the coils on the stator magnetic poles, while the collector electrode is connected with the positive electrode of an electric source; the collector electrode of the other triode is connected with the coils on the stator magnetic poles, while the emitter electrode is connected with the negative electrode of the electric source; the lower magnetic induction sensor is connected with the base electrodes of the two triodes; the collector electrode of one triode is connected with the coils on the stator magnetic poles, while the emitter electrode is connected with the negative electrode of the electric source; and the emitter electrode of the other triode is connected with the coils on the stator magnetic poles, while the collector electrode is connected with the positive electrode of the electric source.

Description

The electronic commutator brushless DC motor
Technical field
The utility model belongs to the improvement of dc motor structure, particularly the electronic commutator brushless DC motor.
Background technology
At present, DC motor generally all is equipped with commutator and brush, and the commutator of traditional DC motor and brush are owing to existing mechanical friction to be easy to damage, and useful life is short, usually will overhaul and safeguard, uses very inconvenient.
The utility model content
The purpose of this utility model is to provide a kind of electronic commutator brushless DC motor, does not have the mechanical friction problem during running, does not have wearing and tearing, need not overhaul and safeguard long service life.
The purpose of this utility model is achieved in that a kind of electronic commutator brushless DC motor, comprise the stator and the rotor that are installed in the electric machine casing, be symmetrical arranged two magnetic pole of the stator that are wound with coil on it respectively on the axial horizontal interior walls of stator, two coils, one end links to each other, rotor is being symmetrical arranged two rotor magnetic poles on the axial horizontal outer wall of rotor between two magnetic pole of the stator; Directly over the electric machine casing and under upper and lower magnetic induction sensor is being set respectively, last magnetic induction sensor links to each other by the base stage of resistance with two triodes respectively, wherein the emitter of a triode links to each other with coil on the magnetic pole of the stator, its collector electrode links to each other with positive source, and the collector electrode of another triode links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; Following magnetic induction sensor links to each other by the base stage of resistance with two triodes respectively, and wherein the collector electrode of a triode links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; And the emitter of another triode links to each other with coil on the magnetic pole of the stator, and its collector electrode links to each other with positive source.
During the utility model work, connect the power supply of motor, last magnetic induction sensor work, S, the N utmost point of the S of magnetic pole of the stator, N utmost point respective rotor magnetic pole, thereby work as the effect that rotor is subjected to thrust and a gravitation in the running simultaneously, so rotor will produce a torque.After 180 ° of rotor rotation, last magnetic induction sensor blocks, following magnetic induction sensor is connected, the coil both positive and negative polarity commutation on the magnetic pole of the stator, and magnetic pole of the stator S, N also commutate, convert N, S to, since rotor rotation 180 °, rotor magnetic pole has also converted N, S to, just in time the conversion of corresponding magnetic pole of the stator, and so forth, motor just begins operate as normal.There is not the mechanical friction problem in the utility model owing to the commutation of electrode changes to adapt to the conversion of rotor magnetic pole magnetic pole of the stator during running, do not have wearing and tearing, need not overhaul and safeguard long service life.The stator coil of the utility model DC motor does not have vacant, need not stepping and follows the tracks of, thereby rotate smoothness, and power output is bigger when the motor equal volume.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing.
Accompanying drawing is a structural representation of the present utility model.
Embodiment
A kind of electronic commutator brushless DC motor, as shown in drawings, comprise the stator and the rotor that are installed in the electric machine casing, be symmetrical arranged two magnetic pole of the stator that are wound with coil on it respectively on the axial horizontal interior walls of stator, two coils, one end links to each other, rotor is being symmetrical arranged two rotor magnetic poles on the axial horizontal outer wall of rotor between two magnetic pole of the stator; Directly over the electric machine casing and under upper and lower magnetic induction sensor 1,2 is being set respectively, last magnetic induction sensor 1 links to each other with the base stage of two triode BG1, BG4 by resistance R 1, R2 respectively, wherein the emitter of a triode BG1 links to each other with coil on the magnetic pole of the stator, its collector electrode links to each other with positive source, and the collector electrode of another triode BG4 links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; Following magnetic induction sensor 2 links to each other with the base stage of two triode BG2, BG3 by resistance R 3, R4 respectively, and wherein the collector electrode of a triode BG2 links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; And the emitter of another triode BG3 links to each other with coil on the magnetic pole of the stator, and its collector electrode links to each other with positive source.
As shown in drawings, when last magnetic induction sensor 1 connects electricity work, following magnetic induction sensor 2 blocks does not work, triode BG1, BG4 conducting, triode BG2, BG3 open signal because of nothing and turn-off, this moment, electric current flowed to power cathode from triode BG4 again by triode BG1 flow direction motor, and rotor rotates.When 180 ° of rotor rotation, following magnetic induction sensor 2 connects electricity work, last magnetic induction sensor 1 blocks does not work, triode BG2, BG3 conducting, triode BG1, BG4 open signal because of nothing and turn-off, and this is that electric current flows to motor from triode BG3, flow to power cathode from triode BG2 again, motor also makes a circle commutator with regard to having finished a work period like this, and and so forth, motor rotates down always.

Claims (1)

1, a kind of electronic commutator brushless DC motor, comprise the stator and the rotor that are installed in the electric machine casing, it is characterized in that: be symmetrical arranged two magnetic pole of the stator that are wound with coil on it respectively on the axial horizontal interior walls of stator, two coils, one end links to each other, rotor is being symmetrical arranged two rotor magnetic poles on the axial horizontal outer wall of rotor between two magnetic pole of the stator; Directly over the electric machine casing and under upper and lower magnetic induction sensor (1,2) is being set respectively, last magnetic induction sensor (1) links to each other with the base stage of two triode BG1, BG4 by resistance R 1, R2 respectively, wherein the emitter of a triode BG1 links to each other with coil on the magnetic pole of the stator, its collector electrode links to each other with positive source, and the collector electrode of another triode BG4 links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; Following magnetic induction sensor (2) links to each other with the base stage of two triode BG2, BG3 by resistance R 3, R4 respectively, and wherein the collector electrode of a triode BG2 links to each other with coil on the magnetic pole of the stator, and its emitter links to each other with power cathode; And the emitter of another triode BG3 links to each other with coil on the magnetic pole of the stator, and its collector electrode links to each other with positive source.
CNU2008201035188U 2008-03-12 2008-03-12 Brushless DC motor of electronic commutator Expired - Fee Related CN201163742Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201035188U CN201163742Y (en) 2008-03-12 2008-03-12 Brushless DC motor of electronic commutator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201035188U CN201163742Y (en) 2008-03-12 2008-03-12 Brushless DC motor of electronic commutator

Publications (1)

Publication Number Publication Date
CN201163742Y true CN201163742Y (en) 2008-12-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008201035188U Expired - Fee Related CN201163742Y (en) 2008-03-12 2008-03-12 Brushless DC motor of electronic commutator

Country Status (1)

Country Link
CN (1) CN201163742Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723835A (en) * 2011-03-31 2012-10-10 比亚迪股份有限公司 Device with integration of motor and generator and control method thereof
CN104218710A (en) * 2014-09-23 2014-12-17 西安泰富西玛电机有限公司 Direct current motor stator coil, stator and direct current motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723835A (en) * 2011-03-31 2012-10-10 比亚迪股份有限公司 Device with integration of motor and generator and control method thereof
CN102723835B (en) * 2011-03-31 2015-06-24 比亚迪股份有限公司 Device with integration of motor and generator and control method thereof
CN104218710A (en) * 2014-09-23 2014-12-17 西安泰富西玛电机有限公司 Direct current motor stator coil, stator and direct current motor

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20081210

Termination date: 20120312