CN109302038A - A kind of electric machine structure of miniature reciprocally swinging - Google Patents
A kind of electric machine structure of miniature reciprocally swinging Download PDFInfo
- Publication number
- CN109302038A CN109302038A CN201811330699.2A CN201811330699A CN109302038A CN 109302038 A CN109302038 A CN 109302038A CN 201811330699 A CN201811330699 A CN 201811330699A CN 109302038 A CN109302038 A CN 109302038A
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- permanent magnet
- electric machine
- machine structure
- miniature
- rotor
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- 238000004804 winding Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 14
- 230000007246 mechanism Effects 0.000 claims description 7
- 230000005389 magnetism Effects 0.000 abstract description 3
- 230000036541 health Effects 0.000 abstract description 2
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010003671 Atrioventricular Block Diseases 0.000 description 1
- 208000010271 Heart Block Diseases 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc Machiner (AREA)
Abstract
The present invention discloses a kind of electric machine structure of miniature reciprocally swinging, including casing, rotor and stator, stator includes the permanent magnet being fixedly mounted in casing, a left side for permanent magnet, right semi-circle is respectively south and north poles, rotor includes being inserted into the intracorporal shaft of permanent magnetism, shaft is equipped with rotor core, rotor core includes iron core block of the cuff in shaft, the two sides of iron core block are connected separately with arc panel, the line of demarcation of the south and north poles of permanent magnet is respectively facing in the middle part of two arc panels, corresponding two arc panels are rotating around equipped with coil windings on iron core block, the magnetic direction that two coil windings generate is identical, it is a complete tubular structure using stator magnet of the invention, the amplitude of fluctuation of motor is higher, better reliability；And the electric machine structure eliminates the spring in traditional oscillating motor, greatly improves the service life of product, which can be widely used on face massager, health product etc..
Description
Technical field
The present invention relates to micromotor technical fields, and in particular to a kind of electric machine structure of miniature reciprocally swinging.
Background technique
Domestic market gradually increases in recent years for electric toothbrush, and the crowd used is also more and more, also just because of user
Member is more and more, also more and more to the individual requirement of electric toothbrush product itself.Hunting frequency, amplitude of fluctuation etc. are as master
The performance indicator wanted, respectively different user are valued.Currently, the motor of traditional realization reciprocally swinging is mainly using following
Several ways realize the reciprocally swinging of output: (1) eccentric block are packed on DC iron core motor output shaft, motor rotation drives inclined
Heart block rotation, to generate vibration；(2) crank-rocker mechanism or cam swing mechanism are utilized, the continuous rotation of motor is transported
Turn becomes the oscillating traverse motion of swing rod；(3) rack and pinion mechanism is utilized, the reciprocating linear of hydraulic cylinder, cylinder piston is transported
It is dynamic, it is changed into the oscillating traverse motion of gear.Using above-mentioned several method, more or less have the defects that it is certain, not such as the service life
It is long, structure is lengthy and jumbled, occupied space is big, at high cost etc..
Summary of the invention
In order to solve the above technical problems, the present invention provides a kind of miniature reciprocally swinging device of longer life expectancy.
Technical solution is as follows: a kind of electric machine structure of miniature reciprocally swinging, including casing, rotor and stator, and key exists
In: the stator includes the cylindric permanent magnet being fixedly mounted in the casing, and the left semicircle of the permanent magnet is the South Pole, right
Semicircle is the arctic；
The rotor includes being inserted into the intracorporal shaft of the permanent magnetism, and the shaft is equipped with rotor core, the rotor
Iron core includes iron core block of the cuff in the shaft, and the two sides of the iron core block are connected separately with arc panel, two arcs
The line of demarcation of the south and north poles of the permanent magnet, corresponding two arc panels on the iron core block are respectively facing in the middle part of plate
Rotating around coil windings are equipped with, the magnetic direction that two coil windings generate is identical.
Stator magnet is a complete tubular structure by adopting the above technical scheme, with traditional 4 (2 pairs of pole) magnetic of use
Steel is compared, and the amplitude of fluctuation of motor improves about 30-40%, and the electric machine structure eliminates the bullet in traditional oscillating motor
Spring thus avoids the drawbacks of causing motor can not work normally because of the failure of spring, greatly improves the service life of product.
As preferred:
Position-limit mechanism is equipped between above-mentioned rotor and stator, which includes two and match with the rotor core
Insulation sleeve, two insulation sleeves are respectively sleeved at the both ends of the rotor core, and the coil windings are wound around two institutes
It states on insulation sleeve, along the limited block that is radially provided with of the shaft at least one described insulation sleeve, the permanent magnet is equipped with limit
Position slot, the slot heart line of the limiting slot are overlapped with the line of demarcation of the permanent magnet south pole and the arctic, and the limited block protrudes into the limit
In the slot of position.Using this structure, the rotational angle of rotor can be limited by position limiting structure, prevented in the state of being not powered on because of external force
Effect prevents shaft to enter extreme position and leads to the case where motor is from normal use after being powered appearance.
The width of above-mentioned limiting slot is less than the half of the permanent magnet perimeter.Using this structure, the swing limit of shaft by
It is limited to the width of limiting slot, maximum rotation angle is only slightly less than ± 90 °, and according to the practical use of product, the maximum of shaft turns
Dynamic angle controls in ± 60 ° more.
The outer wall of above-mentioned arc panel includes the cambered surface of two mirror symmetries, is connected between two cambered surfaces through plane, described flat
Limiting slot described in the face of face forms reluctance gap between the plane and the permanent magnet.Using this structure, in unpowered state
Under have external force by rotor reverse certain angle after, since reluctance gap will be greatly reduced the magnetic field between arc panel and permanent magnet,
The attraction between the arc panel near permanent magnet and reluctance gap is caused to reduce, arc panel can be between the south poles of permanent magnet
Position between the two can be arrived under the balance of active force, that is, remains at initial position.
Spacing between the side edge of two arc panels is L1, the width of the plane is L2, the L1≤L2。
Using this structure, under the premise of guaranteeing that rotor obtains full swing amplitude, can also be rested on always under unpowered state just
Beginning position.
The diameter of wire of above-mentioned coil windings is D, the L1> 2D.Using this structure, between two arc panel edges
Gap is slightly larger than the diameter of wire of winding, facilitates coiling.
The in-plane of above-mentioned arc panel is axially arranged with coiling locating slot, the slot of the coiling locating slot along the shaft
The line of demarcation of permanent magnet south pole and the arctic described in mouth face.Using this structure, winding machines can pass through coiling locating slot when coiling
Winding position is positioned, accurate coiling is facilitated, in addition coiling locating slot can assist reluctance gap to further decrease arc panel
Planar section and permanent magnet between magnetic field strength, thus be conducive to rotor stop initial position.
Said stator further includes end cap of the lid conjunction in the casing end, which is equipped with brush；
The rotor further includes the commutator being set in the shaft, and the coil windings are electrically connected with the commutator
It connects, the brush is slidably connected with the commutator.
The both ends of above-mentioned iron core block are respectively equipped with installing locating slot around the shaft, and a part of the commutator protrudes into
In one of them described installing locating slot, casing is installed in another described installing locating slot.Using this structure, installation is utilized
Installation commutator quickly can be positioned and be installed by locating slot, and the purpose that iron core both ends all offer same locating slot is existed
In, keep the two-end structure of iron core consistent, in this way install when worker just do not need to distinguish both forward and reverse directions, be conducive to promoted assembly efficiency.
The utility model has the advantages that being a complete tubular structure using stator magnet of the invention, with 4 (2 pairs traditional of use
Pole) magnet steel compares, and the amplitude of fluctuation of motor improves about 30-40%, and permanent magnet is monolithic construction, and assembling is more efficiently fast
Victory, in addition the tubular permanent magnet of this monoblock type can mention significantly compared with magnet made of traditional bonding as multiple magnet steel
Rise the reliability of product；And the electric machine structure eliminates the spring in traditional oscillating motor, thus avoids the mistake because of spring
The drawbacks of effect causes motor can not work normally, the service life of product is greatly improved, which can be widely used for face message
On device, health product etc..
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the B-B cross-sectional view of Fig. 1；
Fig. 4 is the C-C cross-sectional view of Fig. 1；
Fig. 5 is explosive view of the invention；
Fig. 6 is that rotor rotates counterclockwise certain angle schematic diagram；
Fig. 7 is that rotor clockwise turns an angle schematic diagram.
Specific embodiment
Below with reference to embodiment and attached drawing, the invention will be further described.
As shown in Figs. 1-5, a kind of electric machine structure of miniature reciprocally swinging, including casing 3, rotor and stator, the stator
Including the cylindric permanent magnet 4 being fixedly mounted in the casing 3, the left semicircle of the permanent magnet 4 is the South Pole, and right semi-circle is north
Pole；
The rotor includes the shaft 8 being inserted into the permanent magnet 4, and the shaft 8 is equipped with rotor core 7, described
Rotor core includes iron core block 7a of the cuff in the shaft 8, and the two sides of the iron core block 7a are connected separately with arc panel
7b, the iron core block 7a and two arc panel 7b are integrally formed, they are collectively formed the rotor core 7 of " I " fonts, and two
It is respectively facing the line of demarcation of the south and north poles of the permanent magnet 4 in the middle part of a arc panel 7b, corresponds to two on the iron core block 7a
For a arc panel 7b rotating around coil windings 5 are equipped with, the magnetic direction that two coil windings 5 generate is identical.
The casing 3 is the tubular structure that one end has small opening with big opening one end, and the stator further includes end cap
14, brush 12, the lid of end cap 14 close at the big opening end of the casing 3, which is equipped with brush 12, the end cap
First bearing 13 is also fixedly installed in 14, the small open end of the casing 3 is fixedly installed with second bearing 2, the shaft 8
Inner end is mounted in the first bearing 13, and the outer end of the shaft 8 connects after being pierced by the casing 3 by the second bearing 2
Be connected to output sleeve 1, the rotor further includes the commutator 10 being set in the shaft 8, the coil windings 5 with it is described whole
Stream 10 is electrically connected, and the brush 12 is slidably connected with the commutator 10.
To facilitate assembly, the both ends of the iron core block 7a are respectively equipped with installing locating slot, the rectification around the shaft 8
Cuff has adjusting washer 11 in shaft 8 between son 10 and first bearing 13, one of them is protruded into one end of the commutator 10
In the installing locating slot, the other end of the commutator 10 is against in the adjusting washer 11, another described installation positioning
Casing 9 is installed in slot.
Position-limit mechanism is equipped between the rotor and stator, which includes two and 7 phase of rotor core
The insulation sleeve 6 matched, two insulation sleeves 6 are respectively sleeved at the both ends of the rotor core 7, and the coil windings 5 are wound around
On two insulation sleeves 6, limited block 6a, the permanent magnetism are radially provided with along the shaft 8 at least one described insulation sleeve 6
Body 4 is equipped with limiting slot 4a, and the slot heart line of limiting slot 4a is overlapped with the line of demarcation of 4 south and north poles of permanent magnet, described
Limited block 6a is protruded into the limiting slot 4a, between the limited block 6a and the cell wall of the limiting slot 4a there are swing gap,
The width of the limiting slot 4a is less than the half of 4 perimeter of permanent magnet, and the outer wall of the arc panel 7b includes two mirror images pair
The cambered surface of title connects between two cambered surfaces, limiting slot 4a described in the plane face through plane, the plane and the permanent magnet
Reluctance gap is formed between 4, the in-plane of the arc panel 7b is axially arranged with coiling locating slot 7c, institute along the shaft 8
State the line of demarcation of 4 south and north poles of permanent magnet described in the notch face of locating slot 7c, the side edge of two arc panel 7b
Between spacing be L1, the width of the plane is L2, the diameter of wire of the coil windings 5 is D, 2D < L1≤L2。
Preferably to limit to the swing angle of rotor, face is set on the insulation sleeve 6 of the end cap 14
There are two the limited block 6a, two limiting slot 4a are correspondingly provided on the permanent magnet 4, the limited block 6a protrudes into correspondence
The limiting slot 4a in, the limited block 6a and the insulation sleeve 6 are integrally formed.
As shown in fig. 6, arc panel 7b forms a magnetic field, with permanent magnet 4 when giving 5 forward direction energization of coil windings
Magnetic field interaction under, the certain angle of rotor counter-clockwise swing；As shown in fig. 7, being reversely powered when giving coil windings 5
When, with magnetic direction before on the contrary, under its magnetic field interaction with permanent magnet 4, rotor is anti-in the magnetic field that arc panel 7b is formed
To swing certain angle.When giving the forward and reverse alternate energisation of the certain beat of motor, rotor will do one according to this frequency
A reciprocal swing back and forth；And under unpowered state, arc panel 7b attraction between the south and north poles of permanent magnet 4
Balance under, the middle position that both can be located in always.
Finally, it should be noted that foregoing description is only the preferred embodiment of the present invention, the ordinary skill people of this field
Member under the inspiration of the present invention, without prejudice to the purpose of the present invention and the claims, can make multiple similar tables
Show, such transformation is fallen within the scope of protection of the present invention.
Claims (9)
1. a kind of electric machine structure of miniature reciprocally swinging, including casing (3), rotor and stator, it is characterised in that: the stator packet
The cylindric permanent magnet (4) being fixedly mounted in the casing (3) is included, the left semicircle of the permanent magnet (4) is the South Pole, right semi-circle
For the arctic；
The rotor includes the shaft (8) being inserted into the permanent magnet (4), and the shaft (8) is equipped with rotor core (7),
The rotor core includes iron core block (7a) of the cuff on the shaft (8), and the two sides of the iron core block (7a) connect respectively
It is connected to arc panel (7b), the line of demarcation of the south and north poles of the permanent magnet (4) is respectively facing in the middle part of two arc panels (7b),
Rotating around coil windings (5) are equipped with, two coil windings (5) produce corresponding two arc panels (7b) on the iron core block (7a)
Raw magnetic direction is identical.
2. a kind of electric machine structure of miniature reciprocally swinging according to claim 1, it is characterised in that: the rotor and stator
Between be equipped with position-limit mechanism, the position-limit mechanism include two insulation sleeves (6) to match with the rotor core (7), two institutes
The both ends that insulation sleeve (6) is respectively sleeved at the rotor core (7) are stated, the coil windings (5) are wound around two insulation
It covers on (6), is radially provided with limited block (6a), the permanent magnet along the shaft (8) at least one described insulation sleeve (6)
(4) it is equipped with limiting slot (4a), the slot heart line of the limiting slot (4a) and the line of demarcation weight of the permanent magnet (4) south and north poles
It closes, the limited block (6a) is protruded into the limiting slot (4a).
3. a kind of electric machine structure of miniature reciprocally swinging according to claim 2, it is characterised in that: the limiting slot (4a)
Width be less than the permanent magnet (4) perimeter half.
4. a kind of electric machine structure of miniature reciprocally swinging according to claim 2 or 3, it is characterised in that: the arc panel
The outer wall of (7b) includes the cambered surface of two mirror symmetries, is connected between two cambered surfaces through plane, is limited described in the plane face
Slot (4a) forms reluctance gap between the plane and the permanent magnet (4).
5. a kind of electric machine structure of miniature reciprocally swinging according to claim 4, it is characterised in that: two arc panels
Spacing between the side edge of (7b) is L1, the width of the plane is L2, the L1≤L2。
6. a kind of electric machine structure of miniature reciprocally swinging according to claim 5, it is characterised in that: the coil windings
(5) the diameter of wire is D, the L1> 2D.
7. a kind of electric machine structure of miniature reciprocally swinging according to claim 4, it is characterised in that: the arc panel (7b)
In-plane being axially arranged with coiling locating slot (7c) along the shaft (8), the notch face of the coiling locating slot (7c)
The line of demarcation of permanent magnet (4) south and north poles.
8. a kind of electric machine structure of miniature reciprocally swinging according to claim 1, it is characterised in that: the stator further includes
Lid closes the end cap (14) in the casing (3) end, which is equipped with brush (12)；
The rotor further includes the commutator (10) being set on the shaft (8), the coil windings (5) and the commutator
(10) it is electrically connected, the brush (12) is slidably connected with the commutator (10).
9. a kind of electric machine structure of miniature reciprocally swinging according to claim 8, it is characterised in that: the iron core block (7a)
Both ends be respectively equipped with installing locating slot around the shaft (8), a part of the commutator (10) protrudes into one of institute
It states in installing locating slot, casing (9) is installed in another described installing locating slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330699.2A CN109302038B (en) | 2018-11-09 | Miniature reciprocating swing motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811330699.2A CN109302038B (en) | 2018-11-09 | Miniature reciprocating swing motor structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109302038A true CN109302038A (en) | 2019-02-01 |
| CN109302038B CN109302038B (en) | 2024-09-10 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589125A (en) * | 2019-10-03 | 2019-12-20 | 宋波 | Self-detection side-leakage sealed beverage packaging equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052230A (en) * | 2014-06-04 | 2014-09-17 | 叶洪源 | Minitype rotary oscillation motor based on resonance |
| CN107968510A (en) * | 2017-12-29 | 2018-04-27 | 重庆超力高科技股份有限公司 | Insulation framework, stator module and brushless electric machine |
| CN208955875U (en) * | 2018-11-09 | 2019-06-07 | 重庆市仓兴达科技有限公司 | The miniature reciprocally swinging device of long arc |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104052230A (en) * | 2014-06-04 | 2014-09-17 | 叶洪源 | Minitype rotary oscillation motor based on resonance |
| CN107968510A (en) * | 2017-12-29 | 2018-04-27 | 重庆超力高科技股份有限公司 | Insulation framework, stator module and brushless electric machine |
| CN208955875U (en) * | 2018-11-09 | 2019-06-07 | 重庆市仓兴达科技有限公司 | The miniature reciprocally swinging device of long arc |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110589125A (en) * | 2019-10-03 | 2019-12-20 | 宋波 | Self-detection side-leakage sealed beverage packaging equipment |
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