CN110311514A - Outer rotor brushless motor with absolute origin signal - Google Patents
Outer rotor brushless motor with absolute origin signal Download PDFInfo
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- CN110311514A CN110311514A CN201910705402.4A CN201910705402A CN110311514A CN 110311514 A CN110311514 A CN 110311514A CN 201910705402 A CN201910705402 A CN 201910705402A CN 110311514 A CN110311514 A CN 110311514A
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- 230000003068 static effect Effects 0.000 claims abstract description 12
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- 239000011324 bead Substances 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 6
- 230000004323 axial length Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 238000002955 isolation Methods 0.000 abstract description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 15
- 238000010586 diagram Methods 0.000 description 7
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
The invention discloses the outer rotor brushless motors with absolute origin signal, including stator connecting shaft and rotor case；Dynamic magnetic field group and circuit board are connected on stator connecting shaft outer wall；It is provided with rotor isolated tube on rotor case inner wall, static magnetic field group and hall sensing component are installed on rotor isolation inside pipe wall；Hall sensing component includes that the first rotor magnetism-isolating loop from top to bottom set gradually, Hall commutation reaction magnetic ring, the second rotor magnetism-isolating loop and the absolute origin reaction magnetic ring of Hall, hall sensing component further include Hall commutation sensors and the absolute origin sensor of Hall.The present invention is additionally arranged the absolute origin reaction magnetic ring of Hall, the absolute origin sensor of Hall passes through induction exportable 360 ° of a mechanical angle of the normal voltage square wave periodic signal of the absolute origin reaction magnetic ring of Hall, it can be learnt that the circumferential position of the opposite inner stator of outer rotor after the board receiver signal, in this way, the precision of control can be effectively improved.
Description
Technical field
The present invention relates to brushless motor technical fields, more particularly, to the external rotor brushless electricity with absolute origin signal
Machine.
Background technique
Existing outer rotor brushless motor usually has outer rotor and inner stator, and outer rotor includes rotor case, static state
Magnetic field group, Hall commutation reaction magnetic ring and Hall commutation sensors, inner stator includes connecting shaft and dynamic magnetic field group, by quiet
Intercoupling between state magnetic field group and dynamic magnetic field group may make the opposite inner stator of outer rotor to rotate, but such knot
Structure has following problem: 1, Hall commutation sensors can not know the relative position between outer rotor and inner stator, and then I sends out
Relative position is precisely controlled between offer outer rotor and inner stator.2, since positioning can not be directly realized by by connecting shaft, because
And need to also have sleeve flange structure in the bearing outside surface design being connected with connecting shaft, this undoubtedly will increase electric machine structure complexity
And production cost.3, due to the presence of sleeve flange structure, the Hall conducting wire and three-phase conducting wire of motor are only capable of from sleeve flange knot
The safe space of structure is drawn, in this way, reducing the torque of unit volume generation, and then can reduce the high power density of motor.4,
Due to the presence of connecting shaft and sleeve flange structure, can then have certain directionality in installation load on outer rotor, in this way
It will affect the versatility of products application.5, connecting shaft usually externally protrudes out in outer rotor and sleeve flange structure also circumferentially externally protrudes out in outer turn
Son so can then occupy biggish axially and radially space, to influence the Miniaturization Design of motor.
Summary of the invention
The purpose of the present invention is overcoming the above problem of the prior art, the external rotor brushless with absolute origin signal is provided
Motor.
The purpose of the present invention is achieved through the following technical solutions:
Outer rotor brushless motor with absolute origin signal, including stator connecting shaft and rotor case, rotor case are logical
It crosses bearing and is connected to stator connecting shaft periphery, and stator connecting shaft and rotor case are coaxially disposed；
Dynamic magnetic field group and circuit board are connected on stator connecting shaft outer wall；
It is provided with rotor isolated tube on rotor case inner wall, is equipped on rotor isolation inside pipe wall and is coupled with dynamic magnetic field group
Static magnetic field group and the hall sensing component below static magnetic field group；
Hall sensing component includes the first rotor magnetism-isolating loop from top to bottom set gradually, Hall commutation reaction magnetic ring, the
Two rotor magnetism-isolating loops and the absolute origin reaction magnetic ring of Hall, hall sensing component further include that induction Hall commutates reaction magnetic ring suddenly
The absolute origin sensor of Hall of your commutation sensors and the induction absolute origin reaction magnetic ring of Hall.
In the present invention, dynamic magnetic field group includes being arranged the silicon steel sheet being connected in stator connecting shaft, is offered on silicon steel sheet
Several stator slots, several stator slots make silicon steel sheet be formed with several along the circumferential equally distributed silicon steel sheet branch of silicon steel sheet
Frame section is wound with electromagnetic wire in silicon steel sheet brace sections, and static magnetic field group includes the magnetic that several are connected to rotor case inner wall
Iron.Intercoupling between the magnetic field that the magnetic field generated by dynamic magnetic field group and static magnetic field group generate, then may make rotor
Shell relative stator connecting shaft rotates.Rotor isolated tube can prevent magnetic field exposure, improve the effect of field generating component.It is dynamic
State magnetic field group and static magnetic field group can be regarded as field generating component jointly.Since the prior art can be used in field generating component,
This is repeated no more.Circuit board is electrically connected by Hall conducting wire and peripheral control unit.
In hall sensing component, magnet, Hall commutation induction magnetic can be isolated in the first rotor magnetism-isolating loop, the second rotor magnetism-isolating loop
Ring and the absolute origin reaction magnetic ring of Hall, avoid influencing each other between them, and Hall commutation sensors pass through induction commutation induction
Magnet ring can export commutation and the revolving speed for controlling induction signal motor to peripheral control unit.The absolute origin reaction magnetic ring of Hall can be adopted
Magnet ring is allowed to form a pair of radially-arranged north and south pole field with the mode that radiation is magnetized, the absolute origin sensor of Hall passes through induction
Exportable 360 ° of a mechanical angle of the normal voltage square wave periodic signal of the absolute origin reaction magnetic ring of Hall, works as peripheral control unit
Receive after the signal it can be learnt that outer rotor with respect to inner stator circumferential position, in this way, the precision of control can be effectively improved.
Further, the stator connecting shaft is in hollow setting, is provided in stator connecting shaft and connects through internal and external walls
Axis cable-through hole is additionally provided with connection boss in the outside wall surface of stator connecting shaft；
It is additionally provided with to be located above connection boss on stator connecting shaft outer wall and crosses line bracket, cross on line bracket and be provided with branch
Frame cable-through hole；
Be connected on connection boss positioned at Hall mounting plate below line bracket, be provided with Hall mistake on Hall mounting plate
String holes, the Hall commutation sensors and the absolute origin sensor of the Hall are installed on Hall mounting plate.
In the present invention, crossing line bracket can be used for supporting field generating component.Stator connecting shaft is in hollow structure, for connecting
Location structure can be by Hall conducting wire (Hall mounting plate), three-phase conducting wire (electricity by the setting of bracket cable-through hole, Hall cable-through hole
Road plate) it is drawn from stator connecting shaft across connecting shaft cable-through hole.The present invention replaces traditional company with hollow stator connecting shaft
Spindle realizes the positioning of motor, it is substantially shorter the axially and radially space of motor, meanwhile, hollow stator connecting shaft is not
Only it is convenient for the extraction of Hall conducting wire and three-phase conducting wire, is also convenient for safeguarding them.Stator connecting shaft inner wall may be provided with
The shaft shoulder is connected to realize the connection with location structure, in this way, additional connection supplementary structure can be saved.In addition, stator connecting shaft
Both ends can be attached with location structure, do not have direction limit, be greatly improved the versatility of motor application.
Further, the line bracket of crossing has the bracket linkage section contacted with the connection boss, bracket linkage section
Inner end, which is extended, has the bracket being set in stator connecting shaft to be arranged section, if the outboard end of bracket linkage section has upwardly extended
The bracket of dry annular array divides section.
In the present invention, bracket divide section quantity should be equal with the quantity of stator slot on silicon steel sheet, and bracket segmentation section with
The bottom end of stator slot notch is adapted.
For the synchronous rotation for guaranteeing line bracket Yu stator connecting shaft, further, the outer surface of the stator connecting shaft
On offer the bracket limiting groove being axially arranged along it；
The bracket is arranged the bracket for being extended and having with the merging cooperation of bracket limiting groove inwardly on the inner surface of section
Retention bead.
Further, bracket hollow slots are provided on the bracket linkage section.In this way, can convenient for guidance Hall conducting wire or
Three-phase conducting wire.
Further, setting is flexible at the bracket cable-through hole crosses line set.Elasticity, which crosses line set, can both use itself bullet
Property power positioning Hall conducting wire and three-phase conducting wire, and Hall conducting wire and three-phase conducting wire can be protected not to be worn.
To realize that rotor case is stably connected with what is loaded, further, the outer surface of the rotor case is provided with outer
Shell connects boss.
Further, stator connecting shaft outer surface from top to bottom successively there is first bearing linkage section, circuit board to connect
Section, field generating component linkage section, hall sensing linkage section and second bearing linkage section are connect, the outer surface of stator connecting shaft is in
The bearing limiting groove being arranged circumferentially along stator connecting shaft, Hall are additionally provided between one bearing linkage section and circuit board linkage section
Incude linkage section outer diameter and is greater than second bearing linkage section and field generating component linkage section；
There are two the bearing settings, and two bearings are connected to first bearing linkage section and connect with second bearing
Section, the bearing limit circlip that can prevent bearing from moving axially is provided at bearing limiting groove.
In the present invention, first bearing linkage section and second bearing linkage section are used to connection bearing.Field generating component connects
Section is connect for installing silicon steel sheet.The settable connection boss of hall sensing linkage section and connecting shaft cable-through hole, cross line bracket and
Hall mounting plate is respectively positioned at hall sensing linkage section.The outer diameter of hall sensing linkage section is greater than field generating component linkage section,
The position of silicon steel sheet can be further fixed.The outer diameter of hall sensing linkage section is greater than second bearing linkage section, can prevent bearing from sending out
Raw axial movement；Similarly, bearing limit circlip is moved axially prevented also from bearing.
Further, the stator connecting shaft is equal with the axial length of the rotor case.In this way, convenient for improving motor
Axial space.
Further, the inner wall of the rotor case be provided with annular stop protrusion, the top of annular stop protrusion and
Outer ring positioned at the bearing of first bearing linkage section is connected；
The region that the rotor isolated tube is located at annular stop protrusion and is connected between the bearing of second bearing linkage section
The inner wall of the rotor case is provided with annular stop protrusion, the top of annular stop protrusion with positioned at first bearing linkage section
The bearing outer ring be connected；
The region that the rotor isolated tube is located at annular stop protrusion and is connected between the bearing of second bearing linkage section.
In the present embodiment, annular stop protrusion can position the axial position of rotor isolated tube.
Further, the junction of the rotor case and the rotor isolated tube is provided with thread groove.
The setting of thread groove can increase glue-contact area, connect between raising rotor case and rotor isolated tube steady
It is qualitative.
The invention has the following advantages:
1, the present invention is additionally arranged the absolute origin reaction magnetic ring of Hall, and the absolute origin sensor of Hall is absolute by induction Hall
Exportable 360 ° of a mechanical angle of the normal voltage square wave periodic signal of origin reaction magnetic ring, after the board receiver signal
It can be learnt that circumferential position of the outer rotor with respect to inner stator, in this way, the precision of control can be effectively improved.
2, the present invention replaces traditional connecting shaft with hollow stator connecting shaft to realize the positioning of motor, it can contract significantly
The axially and radially space of short motor, meanwhile, hollow stator connecting shaft is not only convenient for the extraction of Hall conducting wire and three-phase conducting wire,
It is also convenient for safeguarding them.
3, stator connecting shaft inner wall may be provided with the connection shaft shoulder to realize the connection with location structure, in this way, can save
Additional connection supplementary structure.In addition, the both ends of stator connecting shaft can be attached with location structure, does not have direction and limit
System, is greatly improved the versatility of motor application.
Detailed description of the invention
It, below will be to using required in the description embodiment of the present invention in order to illustrate more clearly of the embodiment of the present invention
Attached drawing is briefly described.It will be apparent that the accompanying drawings in the following description is only some embodiments recorded in the present invention, it is right
For those skilled in the art, without creative efforts, it can also be obtained according to following attached drawing
Its attached drawing.
Fig. 1 is the structure of outer rotor brushless motor one specific embodiment of the present invention with absolute origin signal
Schematic diagram；
Fig. 2 is the section view of outer rotor brushless motor one specific embodiment of the present invention with absolute origin signal
Figure；
Fig. 3 is field generating component and Hall in the outer rotor brushless motor of the present invention with absolute origin signal
The structural schematic diagram of one specific embodiment of inductive component；
Fig. 4 is field generating component one tool in the outer rotor brushless motor of the present invention with absolute origin signal
The structural schematic diagram of body embodiment；
Fig. 5 is that line bracket one is crossed in the outer rotor brushless motor of the present invention with absolute origin signal specifically in fact
Apply the structural schematic diagram of example；
Fig. 6 is specific for stator connecting shaft one in the outer rotor brushless motor of the present invention with absolute origin signal
The structural schematic diagram of embodiment；
Fig. 7 is specific for stator connecting shaft one in the outer rotor brushless motor of the present invention with absolute origin signal
The structural schematic diagram of embodiment；
Fig. 8 is that rotor case one is specifically real in the outer rotor brushless motor of the present invention with absolute origin signal
Apply the structural schematic diagram of example；
Fig. 9 is the absolute origin sensor of Hall in the outer rotor brushless motor of the present invention with absolute origin signal
The signal graph of output.
Wherein, the corresponding parts title of appended drawing reference is as follows: 1, stator connecting shaft, 2, rotor case, 3, bearing, 4, company
Spindle cable-through hole, 5, connection boss, 6, mistake line bracket, 7, bracket cable-through hole, 8, Hall mounting plate, 9, Hall cable-through hole, 10, branch
Frame is arranged section, 11, bracket segmentation section, 12, bracket limiting groove, 13, bracket retention bead, 14, bracket hollow slots, 15, circuit
Plate, 16, elasticity line set excessively, 17, annular stop protrusion, 18, rotor isolated tube, 19, cage connection boss, 20, first bearing company
Connect section, 21, circuit board linkage section, 22, field generating component linkage section, 23, hall sensing linkage section, 24, second bearing connection
Section, 25, bearing limiting groove, 26, bearing limit circlip, 27, thread groove, 28, magnet, 29, silicon steel sheet, 30, silicon steel plate rack
Section, 31, stator slot, 32, electromagnetic wire, 33, the first rotor magnetism-isolating loop, 34, Hall commutation reaction magnetic ring, the 35, second rotor is every magnetic
Ring, 36, the absolute origin reaction magnetic ring of Hall, 37, Hall conducting wire, 38, three-phase conducting wire, 39, silicon steel sheet retention bead, 40, Hall
Commutation sensors, 41, the absolute origin sensor of Hall.
Specific embodiment
In order to make those skilled in the art more fully understand the present invention, following will be combined with the drawings in the embodiments of the present invention
The technical scheme in the embodiment of the invention is clearly and completely described.It will be apparent that embodiment described below is only
It is a part in the embodiment of the present invention, rather than all.Based on the embodiment that the present invention records, those skilled in the art are not
The other all embodiments obtained in the case where making the creative labor, within the protection scope of the present invention.
Embodiment 1
As shown in FIG. 1 to FIG. 9, the outer rotor brushless motor with absolute origin signal, including stator connecting shaft 1 and rotor
Shell 2, rotor case 2 is connected to 1 periphery of stator connecting shaft by bearing 3, and stator connecting shaft 1 is coaxially set with rotor case 2
It sets；
Dynamic magnetic field group and circuit board 15 are connected on 1 outer wall of stator connecting shaft；
It is provided with rotor isolated tube 18 on 2 inner wall of rotor case, is equipped on 18 inner wall of rotor isolated tube and dynamic magnetic field
The static magnetic field group of group coupling and the hall sensing component below static magnetic field group；
Hall sensing component includes the first rotor magnetism-isolating loop 33 from top to bottom set gradually, Hall commutation reaction magnetic ring
34, the second rotor magnetism-isolating loop 35 and the absolute origin reaction magnetic ring 36 of Hall, hall sensing component further include that can incude Hall commutation
The Hall commutation sensors 40 of reaction magnetic ring 34 and the absolute origin sensing of the Hall that the absolute origin reaction magnetic ring 36 of Hall can be incuded
Device 41.
In the present embodiment, 12 slot type dynamic magnetic field groups and 14 pole formula static magnetic field groups can be used.Hall commutation sensors 40
US1881 can be selected with the absolute origin sensor 41 of Hall.
Embodiment 2
The present embodiment has made restriction further below on the basis of embodiment 1: the stator connecting shaft 1 is set in hollow
It sets, is provided in stator connecting shaft 1 and is additionally provided on internal and external walls connecting shaft cable-through hole 4, the outside wall surface of stator connecting shaft 1
Connect boss 5；
It is additionally provided with to be located above connection boss 5 on 1 outer wall of stator connecting shaft and crosses line bracket 6, cross on line bracket 6 and be arranged
There is bracket cable-through hole 7；
Be connected on connection boss 5 positioned at the lower section of line bracket 6 Hall mounting plate 8, be provided with suddenly on Hall mounting plate 8
That cable-through hole 9, the Hall commutation sensors 40 and the absolute origin sensor 41 of the Hall are installed in Hall mounting plate 8
On.
In the present embodiment, since Hall commutation reaction magnetic ring 34 is located at the top of the absolute origin reaction magnetic ring 36 of Hall, because
And the mountable top in Hall mounting plate 8 of Hall commutation sensors 40, the absolute origin sensor 41 of Hall are mountable in Hall
The bottom end of mounting plate 8.
For the connection for realizing stator connecting shaft 1 and location structure, the inner surface of stator connecting shaft 1 can be provided with connecting shaft
Shoulder, and also the inner surface of stator connecting shaft 1 can be provided with connection screw thread in order to carry out being located by connecting for motor.Circuit board
15 are attached to the top of 12 slot type dynamic magnetic field groups.The outside wall surface that line bracket 6 is set in stator connecting shaft 1 is crossed, line can will be crossed
Bracket 6 is connected to the upper end of connection boss 5, also can directly support line bracket 6 by connecting boss 5.
Preferably, flexible line of crossing is set at the bracket cable-through hole 7 and covers 16.Elasticity crosses line and covers 16 optional silica gel, rubber
The materials such as glue.
The outer surface of the rotor case 2 is provided with cage connection boss 19.
Preferably, the stator connecting shaft 1 is equal with the axial length of the rotor case 2.
In the present embodiment, ball bearing is can be selected in bearing 3.
Embodiment 3
The present embodiment has made restriction further below on the basis of embodiment 2: it is described cross line bracket 6 have with it is described
The bracket linkage section 9 that boss 5 contacts is connected, the inner end of bracket linkage section 9, which is extended, to be set in stator connecting shaft 1
Bracket is arranged section 10, and the outboard end of bracket linkage section 8 upwardly extends the bracket segmentation section 11 of several annular arrays.
In the present embodiment, bracket linkage section 9 is attached to the top of connection boss 5.
Preferably, the bracket limiting groove 12 being axially arranged along it is offered on the outer surface of the stator connecting shaft 1；
The bracket, which is arranged to be extended inwardly on the inner surface of section 10, to be had and the merging cooperation of bracket limiting groove 12
Bracket retention bead 13.
It, can be in the interior table of silicon steel sheet to improve the stability that silicon steel sheet is connect with stator connecting shaft 1 in field generating component
Face is provided with the silicon steel sheet retention bead 39 that cooperation can be placed in bracket limiting groove 12.
Preferably, bracket hollow slots 14 are provided on the bracket linkage section 9.
Embodiment 4
The present embodiment has made restriction further below on the basis of any one of embodiment 2~3 embodiment: described
1 outer surface of stator connecting shaft from top to bottom successively has first bearing linkage section 20, circuit board linkage section 21, field generating component
The outer surface of linkage section 22, hall sensing linkage section 23 and second bearing linkage section 24, stator connecting shaft 1 is connected in first bearing
The bearing limiting groove 25 being arranged circumferentially along stator connecting shaft 1, Hall sense are additionally provided between section 20 and circuit board linkage section 21
23 outer diameter of linkage section is answered to be greater than second bearing linkage section 24 and field generating component linkage section 22；
There are two the settings of bearing 3, and two bearings 3 are connected to first bearing linkage section 20 and second bearing connects
Section 24 is connect, the bearing limit circlip 26 that can prevent bearing 3 from moving axially is provided at bearing limiting groove 25.
In the present embodiment, first bearing linkage section 20 and second bearing linkage section 24 can be waited greatly.
Preferably, the inner wall of the rotor case 2 is provided with annular stop protrusion 17, the top of annular stop protrusion 17
It is connected with the outer ring for the bearing 3 for being located at first bearing linkage section 20；
The rotor isolated tube 18 is located between annular stop protrusion 17 and the bearing 3 for being connected to second bearing linkage section 24
Region.
Preferably, the junction of the rotor case 2 and the rotor isolated tube 18 is provided with thread groove 27.
In the present embodiment, thread groove may be provided at the inner surface of rotor case 2, also can be set in rotor isolated tube 18
Outer surface.
The above content is combine specific preferred embodiment to the further description of the invention made, and it cannot be said that originally
The specific embodiment of invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
The other embodiments obtained in the case where not departing from technical solution of the present invention, should be included within the scope of the present invention.
Claims (10)
1. the outer rotor brushless motor with absolute origin signal, it is characterised in that: including stator connecting shaft (1) and rotor case
(2), rotor case (2) is connected to stator connecting shaft (1) periphery, and stator connecting shaft (1) and rotor case by bearing (3)
(2) it is coaxially disposed；
Dynamic magnetic field group and circuit board (15) are connected on stator connecting shaft (1) outer wall；
It is provided with rotor isolated tube (18), is equipped on rotor isolated tube (18) inner wall and dynamic magnetic on rotor case (2) inner wall
The static magnetic field group of field group coupling and the hall sensing component below static magnetic field group；
Hall sensing component includes the first rotor magnetism-isolating loop (33) from top to bottom set gradually, Hall commutation reaction magnetic ring
(34), the second rotor magnetism-isolating loop (35) and the absolute origin reaction magnetic ring (36) of Hall, hall sensing component further include induction Hall
The Hall commutation sensors (40) of commutation reaction magnetic ring (34) and the Hall for incuding the absolute origin reaction magnetic ring (36) of Hall are absolute
Origin sensor (41).
2. the outer rotor brushless motor according to claim 1 with absolute origin signal, it is characterised in that: the stator
Connecting shaft (1) is in hollow setting, and the connecting shaft cable-through hole (4) through internal and external walls is provided in stator connecting shaft (1)；
Connection boss (5) is provided in the outside wall surface of stator connecting shaft (1)；
It is additionally provided with to be located above connection boss (5) on stator connecting shaft (1) outer wall and crosses line bracket (6), cross on line bracket (6)
It is provided with bracket cable-through hole (7)；
Be connected in connection boss (5) positioned at Hall mounting plate (8) below line bracket (6), Hall mounting plate be arranged on (8)
Have Hall cable-through hole (9), the Hall commutation sensors (40) and the absolute origin sensor of the Hall (41) are mounted on Hall
On mounting plate (8).
3. the outer rotor brushless motor according to claim 2 with absolute origin signal, it is characterised in that: described to cross line
Bracket (6) has the bracket linkage section (9) contacted with connection boss (5), and the inner end of bracket linkage section (9) is extended
There is the bracket being set on stator connecting shaft (1) to be arranged section (10), the outboard end of bracket linkage section (8) has upwardly extended several
The bracket of annular array divides section (11).
4. the outer rotor brushless motor according to claim 2 with absolute origin signal, it is characterised in that: the stator
The bracket limiting groove (12) being axially arranged along it is offered on the outer surface of connecting shaft (1)；
The bracket, which is arranged to be extended inwardly on the inner surface of section (10), to be had and bracket limiting groove (12) merging cooperation
Bracket retention bead (13).
5. the outer rotor brushless motor according to claim 2 with absolute origin signal, it is characterised in that: the bracket
Bracket hollow slots (14) are provided on linkage section (9).
6. the outer rotor brushless motor according to claim 1 with absolute origin signal, it is characterised in that: the bracket
Setting is flexible at cable-through hole (7) crosses line set (16).
7. the outer rotor brushless motor according to claim 1 with absolute origin signal, it is characterised in that: the rotor
The outer surface of shell (2) is provided with cage connection boss (19).
8. with the outer rotor brushless motor of absolute origin signal, feature described according to claim 1~any one of 7
Be: stator connecting shaft (1) outer surface from top to bottom successively has first bearing linkage section (20), circuit board linkage section
(21), field generating component linkage section (22), hall sensing linkage section (23) and second bearing linkage section (24), stator connecting shaft
(1) outer surface is additionally provided with along stator connecting shaft (1) between first bearing linkage section (20) and circuit board linkage section (21)
The bearing limiting groove (25) being arranged circumferentially, hall sensing linkage section (23) outer diameter are greater than second bearing linkage section (24) and magnetic field
It generates component linkage section (22)；
There are two bearing (3) settings, and two bearings (3) are connected to first bearing linkage section (20) and second bearing
Linkage section (24) is provided with bearing limit circlip (26) that bearing (3) can be prevented to move axially at bearing limiting groove (25).
9. the outer rotor brushless motor according to claim 8 with absolute origin signal, it is characterised in that: the stator
Connecting shaft (1) is equal with the axial length of the rotor case (2).
10. the outer rotor brushless motor according to claim 8 with absolute origin signal, it is characterised in that: described turn
The inner wall of subshell (2) is provided with that annular stop is raised (17), the top of annular stop protrusion (17) be located at first bearing
The outer ring of the bearing (3) of linkage section (20) is connected；
The rotor isolated tube (18) is located at annular stop raised (17) and is connected to the bearing (3) of second bearing linkage section (24)
Between region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705402.4A CN110311514B (en) | 2019-07-31 | 2019-07-31 | External rotor brushless motor with absolute origin signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705402.4A CN110311514B (en) | 2019-07-31 | 2019-07-31 | External rotor brushless motor with absolute origin signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110311514A true CN110311514A (en) | 2019-10-08 |
| CN110311514B CN110311514B (en) | 2024-03-22 |
Family
ID=68082696
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705402.4A Active CN110311514B (en) | 2019-07-31 | 2019-07-31 | External rotor brushless motor with absolute origin signal |
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| Country | Link |
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| CN (1) | CN110311514B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110685129A (en) * | 2019-10-25 | 2020-01-14 | 台州市信恩电子科技有限公司 | Door opening speed reducer of washing machine |
| CN112087108A (en) * | 2020-09-15 | 2020-12-15 | 华育昌(肇庆)智能科技研究有限公司 | Rare earth permanent magnet synchronous motor with absolute origin signal |
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| GB1435314A (en) * | 1972-05-25 | 1976-05-12 | Massachusetts Inst Technology | Superconducting rotating electrical machines |
| US20070001532A1 (en) * | 2005-06-30 | 2007-01-04 | Delta Electronics, Inc. | Brushless DC motor and magnetic compensation method thereof |
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| CN110685129A (en) * | 2019-10-25 | 2020-01-14 | 台州市信恩电子科技有限公司 | Door opening speed reducer of washing machine |
| CN112087108A (en) * | 2020-09-15 | 2020-12-15 | 华育昌(肇庆)智能科技研究有限公司 | Rare earth permanent magnet synchronous motor with absolute origin signal |
| CN112087108B (en) * | 2020-09-15 | 2022-05-20 | 湖南普东科技有限责任公司 | Rare earth permanent magnet synchronous motor with absolute origin signal |
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