CN204408090U - Micro-burst motor - Google Patents
Micro-burst motor Download PDFInfo
- Publication number
- CN204408090U CN204408090U CN201520131689.1U CN201520131689U CN204408090U CN 204408090 U CN204408090 U CN 204408090U CN 201520131689 U CN201520131689 U CN 201520131689U CN 204408090 U CN204408090 U CN 204408090U
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- China
- Prior art keywords
- axle sleeve
- bearing
- clutch shaft
- shaft bearing
- brush
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Abstract
The utility model discloses a kind of micro-burst motor, comprise stator, rotor, commutator, brush, eccentric hammer.Stator comprises casing, axle sleeve and magnet steel.The cylindrical of axle sleeve is multidiameter, and its large footpath section is fixedly connected with the microstome end of casing.The endoporus of axle sleeve is ladder hole, and the large footpath section of this ladder hole is clutch shaft bearing installing hole, and the aperture of this ladder hole large footpath section is identical with the external diameter of sleeve outer circle path section.Magnetic steel sleeve is connected and fixed in the path section of axle sleeve, and extends axle sleeve, and the endoporus of this magnet steel elongated end forms the second bearing mounting hole.Clutch shaft bearing is identical with the specifications and models of the second bearing.The armature spindle of rotor is supported in clutch shaft bearing and the second bearing through the ladder hole of axle sleeve, and one end of armature spindle is fixedly connected with rotor rack, and the other end extends axle sleeve and is fixedly connected with eccentric hammer.Brush is Conjoined electric brush.The advantage of this kind of micro-burst motor: assembling process is convenient, quick, intensity is better, and not yielding, packaging qualification rate significantly improves.
Description
Technical field
The utility model relates to a kind of motor, particularly a kind of micro-burst motor.
Background technology
Along with the development of science and technology, the progress of electronics techniques, the electronic product small such as mobile phone, panel computer, electronic toy.The parts of various electronic product inside are also more and more accurate, and the micro-burst motor wherein for vibrating is very small, and its length is about 9 ~ 12mm, and its diameter is about 4 ~ 5mm.This micro-burst motor in an assembling process tool acquires a certain degree of difficulty.
The micro-burst motor of existing market main flow is the micromachine with eccentric hammer, is driven by motor, when motor High Rotation Speed, is arranged on strong centrifugal force and the vibration force of the eccentric hammer generation on axle.This motor mainly comprises stator, rotor, commutator, brush and eccentric hammer.Its rotor comprises armature spindle, and one end of armature spindle is fixedly connected with eccentric hammer, and on armature spindle, cover has clutch shaft bearing, axle sleeve and the second bearing successively, and the other end of armature spindle is fixed on rotor rack.It is inner and unsettled that clutch shaft bearing is pressed together on casing small bore end.Sleeve outer circle is multidiameter, and path part is sleeved on the middle part of armature spindle, and axle sleeve large diameter portion is fixed in casing small bore end, and axle sleeve bigger diameter end flushes with clutch shaft bearing.Second bearing is arranged between axle sleeve and rotor rack.Clutch shaft bearing is larger than the excircle dimension of the second bearing.The brushing piece of this brush is right-angle bending brushing piece, and two active section sheets of same brushing piece are independent mutually.
Adopt this micro-burst motor structure, have following major defect when assembling motor:
1, because clutch shaft bearing is larger than the size of the second bearing, thus workman needs conscientiously to distinguish bearing size and model when assembling, and causes that operative's difficulty is large, efficiency is low; Once the bearing of workman's mistake assembles, magnet steel in whole stator can be caused to break, and bearing damage, stator qualification rate is low.
2, because axle sleeve large diameter portion is fixedly connected with casing, the termination of axle sleeve large diameter portion flushes with clutch shaft bearing, and thus the concentricity of bearing and armature spindle is poor on the one hand, and assembling difficulty is large, and slow down workman's assembling speed; Workman is when assembling clutch shaft bearing on the other hand, easily causes clutch shaft bearing impeller-hub cover to move axially, and cause magnet steel to extrude damaged, bearing damage, qualification rate is low.
3, because clutch shaft bearing is pressed together in the little opening of casing and unsettled, thus casing microstome end is yielding on the one hand, particularly when suppressing clutch shaft bearing; On the other hand motor drops on the ground or in transportation in the situation such as severe jolt, easily causes the clutch shaft bearing of motor to be shifted, have a strong impact on motor performance when doing fall-down test, under abnormal conditions.
4, because the brushing piece of same brush is mutual independently two active section sheets, thus the brushing piece of brush is yielding, and qualification rate is low, not easily reprocesses, and manufacturing cost increases.
5, because the brushing piece of brush is right-angle bending brushing piece, thus on the one hand there is no holddown groove, not easily locate when the seat board thus on brushing piece and end cap assembles, easily cause two working ends of brushing piece different in size to (centrad is asymmetric, axiality is poor), affect motor pneumatic performance and life-span; The right-angle folding crook of brushing piece does not arrange opening on the other hand, and easily produce interference during bending, Bending Processing is more difficult.
Summary of the invention
Goal of the invention of the present utility model is to overcome prior art deficiency, and provide a kind of micro-burst motor, its advantage has: assembling process is convenient, quick; Good concentricity, is easy to assembling; Intensity is better, not yielding or displacement; The brush of motor is not yielding, is easy to location and installation, improves firm welding; Whole motor packaging qualification rate significantly improves.
The technical solution of the utility model is:
A kind of micro-burst motor, comprise stator, rotor, commutator, brush, eccentric hammer, it is characterized in that: described stator comprises casing, axle sleeve and magnet steel, described casing is axially through hollow shell, one stomidium mouth is less than other end aperture, the cylindrical of described axle sleeve is multidiameter, the path section of this multidiameter is arranged in chassis cavity, the large footpath section of this multidiameter is fixedly connected with the microstome end of casing, the endoporus of described axle sleeve is ladder hole, the large footpath section of this ladder hole is clutch shaft bearing installing hole, the aperture of described ladder hole large footpath section is identical with the external diameter of sleeve outer circle path section, described magnetic steel sleeve is connected and fixed in the path section of axle sleeve, axle sleeve is extended in one end of described magnet steel, the endoporus of this magnet steel elongated end forms the second bearing mounting hole, in described clutch shaft bearing installing hole, clutch shaft bearing is installed, second bearing is installed in the second bearing mounting hole, described clutch shaft bearing is identical with the specifications and models of the second bearing, the armature spindle of described rotor is supported in clutch shaft bearing and the second bearing through the ladder hole of axle sleeve, one end of armature spindle is fixedly connected with rotor rack, described commutator is fixedly connected with rotor rack, it is corresponding with magnet steel that the coil of rotor is arranged in chassis cavity, described coil is fixedly connected with commutator, described brush is fixed on end cap, for contacting with commutator, the other end of armature spindle extends axle sleeve and is fixedly connected with eccentric hammer.
Described brush comprises sheet base portion and brushing piece portion, described base portion is provided with guide vane end stop, described brushing piece portion is two parallel brushing pieces, opening is provided with between two parallel brushing pieces, two parallel brushing pieces are extended by sheet base one end, after bending, form stretch section, be provided with brace between the middle part of the stretch section of two brushing pieces and be connected, form Conjoined electric brush.
The other end bending of described base portion forms line ball portion, and this line ball portion is provided with circular arc pressuring line groove.
The termination of casing microstome one end is extended in the termination of described axle sleeve large footpath section.
Be provided with the first pad between described eccentric hammer and clutch shaft bearing, between described second bearing and rotor rack, be provided with the second pad.
The beneficial effects of the utility model are:
Compared with prior art, the endoporus of the utility model bottom bracket axle is ladder hole, and the large footpath section of this ladder hole is clutch shaft bearing installing hole, installs clutch shaft bearing in this clutch shaft bearing installing hole.The aperture of this ladder hole large footpath section is identical with the external diameter of sleeve outer circle path section, and magnetic steel sleeve is connected and fixed in the path section of axle sleeve, and axle sleeve is extended in one end of this magnet steel, and the endoporus of magnet steel elongated end forms the second bearing mounting hole.Described clutch shaft bearing installing hole is identical with the aperture of the second bearing mounting hole.Setting like this, clutch shaft bearing installing hole is equal with the aperture of the second bearing mounting hole on the one hand, the bearing of same model can be installed, workman in an assembling process, do not need the model distinguishing bearing directly to assemble, assemble convenient, quick, efficiency is faster, the bearing that effectively prevent because of mistake in model causes material scrap, and packaging qualification rate significantly improves.Clutch shaft bearing is arranged in the large footpath sector hole of axle sleeve on the other hand, and its concentricity is better, is easier to assembling.
The large footpath section of described multidiameter is fixedly connected with the microstome end of casing, and the termination of microstome one end of casing is extended in the section termination, large footpath of axle sleeve; Setting like this, the thickness of the microstome end of casing increases, and intensity is better, not yielding.
Described brush comprises sheet base portion and brushing piece portion, sheet base portion is provided with guide vane end stop, brushing piece portion is two parallel brushing pieces, opening is provided with between two parallel brushing pieces, two parallel brushing pieces are extended by sheet base one end, after bending, form stretch section, be provided with brace between the middle part of the stretch section of two brushing pieces and be connected, form Conjoined electric brush.The other end bending of sheet base portion forms line ball portion, and this line ball portion is provided with circular arc pressuring line groove.Setting like this, brush forms Conjoined electric brush on the one hand, and brush intensity is better, not yielding; On the other hand, brush brushing piece portion is provided with opening, is easy to employee's welding operation, improves firm welding; Also have on the one hand, brush plate base portion is provided with circular arc pressuring line groove, is easy to brush location and installation, improves brush installation qualification rate.
After adopting the utility model structure, in the assembling process of this kind of motor, overall qualification rate significantly improves.
Be further described below in conjunction with the drawings and specific embodiments.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the structural representation of the utility model embodiment stator;
Fig. 3 is the structural representation of the utility model embodiment axle sleeve;
Fig. 4 is the A direction view of Fig. 3;
Fig. 5 is the B direction view of Fig. 3.
Fig. 6 is the structural representation of the utility model embodiment brush;
Fig. 7 is the another kind of structural representation of the utility model embodiment brush;
Fig. 8 is the A direction view of Fig. 7;
Fig. 9 is the B direction view of Fig. 7.
In accompanying drawing, 1 is eccentric hammer, and 2 is the first pad, and 3 is clutch shaft bearing, and 4 is casing, 5 is axle sleeve, and 6 is magnet steel, and 7 is the second bearing, and 8 is commutator, 9 is armature spindle, and 10 is clutch shaft bearing installing hole, and 11 is ladder hole, and 12 is coil, 13 is the second bearing mounting hole, and 14 is the second pad, and 15 is rotor rack, and 16 is brush, 17 is end cap, and 18 is wire, and 161 is sheet base portion, and 162 is brushing piece portion, 163 is guide vane end stop, and 164 is opening, and 165 is brace, and 166 is circular arc pressuring line groove.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings, the utility model is described more fully.Preferred embodiment of the present utility model is given in accompanying drawing.But the utility model can realize in many different forms, be not limited to embodiment described herein.Contrary, provide the object of these embodiments be make the understanding of disclosure of the present utility model more comprehensively thorough.
As Figure 1-5, a kind of micro-burst motor, comprises stator, rotor, commutator 8, brush 16, eccentric hammer 1.Described stator comprises casing 4, axle sleeve 5 and magnet steel 6.Described casing 4 is axially through hollow shell, and one stomidium mouth is less than other end aperture.The cylindrical of described axle sleeve 5 is multidiameter, and the path section of this multidiameter is arranged in casing 4 inner chamber, and the large footpath section of this multidiameter is fixedly connected with the microstome end of casing 4.As preferably, the termination of casing 4 microstome one end is extended in the termination of axle sleeve 5 large footpath section.Setting like this, axle sleeve 5 is fixedly connected with casing 4, and the thickness transition of casing 4 small bore end is the wall thickness that the wall thickness of casing 4 adds Upper shaft sleeve 5 large footpath section, and the thickness of the microstome end of casing 4 increases, and intensity is better, not yielding.
The endoporus of axle sleeve 5 is ladder hole 11, and this ladder hole 11 runs through for armature spindle 9.The large footpath section of this ladder hole 11 is clutch shaft bearing installing hole 10.In this clutch shaft bearing installing hole 10, clutch shaft bearing 3 is installed.Setting like this, axle sleeve 5 pairs of clutch shaft bearings 3 have the function of protective sleeve, the breakage that can effectively prevent clutch shaft bearing 3 from causing because of factors such as vibrations and displacement.Clutch shaft bearing 3 is better with the concentricity of armature spindle 9, is easier to assembling, reduces defective products.The aperture of this ladder hole 11 large footpath section is identical with the external diameter of axle sleeve 5 cylindrical path section.The path section that magnet steel 6 is enclosed within axle sleeve 5 is connected and fixed, and axle sleeve 5 is extended in one end of this magnet steel 6, and the endoporus of this magnet steel 6 elongated end forms the second bearing mounting hole 13, installs the second bearing 7 in this second bearing mounting hole 13.Thus clutch shaft bearing installing hole 10 is identical with the aperture of the second bearing mounting hole 13.Therefore clutch shaft bearing 6 is identical with the specifications and models of the second bearing 7.Setting like this, workman in an assembling process, does not need the model distinguishing bearing directly to assemble, assembles convenient, quick, and efficiency is faster, and the bearing that effectively prevent because of mistake in model causes material scrap, and packaging qualification rate significantly improves.The ladder hole that the armature spindle 9 of described rotor passes axle sleeve 5 is supported in clutch shaft bearing 6 and the second bearing 7, and one end of armature spindle 9 is fixedly connected with rotor rack 15, and commutator 8 is fixedly connected with rotor rack 15.It is corresponding with magnet steel 6 that the coil 12 of rotor is arranged in casing 4 inner chamber, and this coil 12 is fixedly connected with commutator 8.Brush 16 is fixed on end cap 17, and for contacting with commutator 8, wire 18 is welded on brush 16, draws from end cap 17, connects external power source.As preferably, wire 18 can make plug-in unit, connects external power source.The other end of armature spindle 9 extends axle sleeve 5 and is fixedly connected with eccentric hammer 1.
As preferably, brush 16 comprises sheet base portion 161 and brushing piece portion 162.Sheet base portion 161 is provided with for the guide vane end stop 163 with end cap 17 location and installation.Brushing piece portion 162 is two parallel brushing pieces, is provided with opening 164 between two parallel brushing pieces.Arranging of opening 164 can prevent two of brushing piece portion 162 parallel brushing pieces from interfering with each other when carrying out bending process, is easier to Bending Processing.Two parallel brushing pieces are extended by sheet base portion 161 one end, after bending, form stretch section, are provided with brace 165 and are connected, form Conjoined electric brush between the middle part of the stretch section of two brushing pieces.Setting like this, brush Final 16 degree is better, and not yielding, performance is more stable.Because two parallel brushing pieces have carried out bending process, opening 164 is also in R shape opening.
As preferably, the other end bending of the sheet base portion 161 of brush 16 forms line ball portion, and this line ball portion is provided with circular arc pressuring line groove 166.Setting like this, brush is easier to location and installation, and cable is in good order, improves brush installation qualification rate.
As preferably, be provided with between eccentric hammer 1 and clutch shaft bearing 3 between first pad 2, second bearing 7 and rotor rack 15 and be provided with the second pad 14.Setting like this, it connects more effectively, firmly, can reach part damping effect simultaneously.
The above embodiment only have expressed structure of the present utility model, principal character, execution mode and advantage, and the utility model is not restricted to the described embodiments.The technical staff of the industry should understand, and under the prerequisite not departing from the utility model spirit and scope, simple change and the replacement of those ordinary skill in the art are all within protection range of the present utility model.
Claims (5)
1. a micro-burst motor, comprise stator, rotor, commutator (8), brush (16), eccentric hammer (1), it is characterized in that: described stator comprises casing (4), axle sleeve (5) and magnet steel (6), described casing (4) is axially through hollow shell, one stomidium mouth is less than other end aperture, the cylindrical of described axle sleeve (5) is multidiameter, the path section of this multidiameter is arranged in casing (4) inner chamber, the large footpath section of this multidiameter is fixedly connected with the microstome end of casing (4), the endoporus of described axle sleeve (5) is ladder hole (11), the large footpath section of this ladder hole (11) is clutch shaft bearing installing hole (10), the aperture of described ladder hole (11) large footpath section is identical with the external diameter of axle sleeve (5) cylindrical path section, the path section that described magnet steel (6) is enclosed within axle sleeve (5) is connected and fixed, axle sleeve (5) is extended in one end of described magnet steel (6), the endoporus of this magnet steel (6) elongated end forms the second bearing mounting hole (13), in described clutch shaft bearing installing hole (10), clutch shaft bearing (3) is installed, in second bearing mounting hole (13), the second bearing (7) is installed, described clutch shaft bearing (3) is identical with the specifications and models of the second bearing (7), the armature spindle (9) of described rotor is supported in clutch shaft bearing (3) and the second bearing (7) through the ladder hole of axle sleeve (5), one end of armature spindle (9) is fixedly connected with rotor rack (15), described commutator (8) is fixedly connected with rotor rack (15), it is corresponding with magnet steel (6) that the coil (12) of rotor is arranged in casing (4) inner chamber, described coil (12) is fixedly connected with commutator (8), described brush (16) is fixed on end cap (17), for contacting with commutator (8), the other end of armature spindle (9) extends axle sleeve (5) and is fixedly connected with eccentric hammer (1).
2. micro-burst motor according to claim 1, it is characterized in that: described brush (16) comprises sheet base portion (161) and brushing piece portion (162), described base portion (161) is provided with guide vane end stop (163), described brushing piece portion (163) is two parallel brushing pieces, opening (164) is provided with between two parallel brushing pieces, two parallel brushing pieces are extended by sheet base portion (161) one end, stretch section is formed after bending, be provided with brace (165) between the middle part of the stretch section of two brushing pieces to be connected, form Conjoined electric brush.
3. micro-burst motor according to claim 2, is characterized in that: the other end bending of described base portion (161) forms line ball portion, and this line ball portion is provided with circular arc pressuring line groove (166).
4. micro-burst motor according to claim 1, is characterized in that: the termination of casing (4) microstome one end is extended in the termination of described axle sleeve (5) large footpath section.
5. micro-burst motor according to claim 1, is characterized in that: be provided with the first pad (2) between described eccentric hammer (1) and clutch shaft bearing (3), is provided with the second pad (14) between described second bearing (7) and rotor rack (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131689.1U CN204408090U (en) | 2015-03-09 | 2015-03-09 | Micro-burst motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520131689.1U CN204408090U (en) | 2015-03-09 | 2015-03-09 | Micro-burst motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204408090U true CN204408090U (en) | 2015-06-17 |
Family
ID=53431924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520131689.1U Expired - Fee Related CN204408090U (en) | 2015-03-09 | 2015-03-09 | Micro-burst motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204408090U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533047A (en) * | 2015-09-15 | 2017-03-22 | 池州市弘港科技电子有限公司 | Miniature vibrator |
-
2015
- 2015-03-09 CN CN201520131689.1U patent/CN204408090U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106533047A (en) * | 2015-09-15 | 2017-03-22 | 池州市弘港科技电子有限公司 | Miniature vibrator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20180309 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |