CN203104199U - Wire type cylindrical vibration motor - Google Patents
Wire type cylindrical vibration motor Download PDFInfo
- Publication number
- CN203104199U CN203104199U CN2013201410061U CN201320141006U CN203104199U CN 203104199 U CN203104199 U CN 203104199U CN 2013201410061 U CN2013201410061 U CN 2013201410061U CN 201320141006 U CN201320141006 U CN 201320141006U CN 203104199 U CN203104199 U CN 203104199U
- Authority
- CN
- China
- Prior art keywords
- brush
- end cap
- lead
- vibrating motor
- type cylinder
- 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 - Lifetime
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Abstract
The utility model discloses a wire type cylindrical vibration motor which comprises a shell, an armature winding, magnetic steel, a bearing bush and a shaft that are sequentially sleeved from exterior to interior, wherein one end of the shell is provided with an end cover; the inner side of the end cover is provided with two electric brushes; the outer side of the end cover is provided with a wire in conductive connection with the electric brushes; one end of the shaft, which faces the end cover, is fixedly connected with a communtator matched with the electric brushes; an eccentric vibrator is arranged on the part of the other end of the shaft, extending out of the shell; each electric brush comprises a mounting part for fixedly mounting the electric brushes on the end cover, and a conductive contact part contacted with the communtator; and the conductive contact part has a comb sheet structure comprising three comb teeth. The friction between the electric brush and the communtator is reduced, and big reversing spark in the operating process is avoided, so that the efficiency of the motor is improved, and the service life of the motor is prolonged.
Description
Technical field
The utility model relates to machine field, particularly relates to a kind of lead-type cylinder vibrating motor that is applied to fields such as mobile phone, massager.
Background technology
Vibrating motor is a kind of a kind of device that converts electrical energy into physical vibration, when the cell phone incoming call signal enters, vibrating motor is switched on, electric current is brushed sheet by lead, and commutator segment flows into armature winding, the armature winding of the magnetic field intercepts energising in the motor produces electromagnetic torque, flow into and outflow by constant direction by the electric current in the commutator commutation generation zone, produce the electromagnetic torque of constant direction, motor is rotated continuously.Go out force direction at motor specified eccentric load is installed, produce centrifugal force in the motor rotation process, realize the vibrative function of driven by motor mobile phone, the prompting user has voice or message pick-up.
The brush that at present traditional vibrating motor uses is two-layer comb-tooth-type structure, and CN2927478Y discloses a kind of vibrating motor and brush thereof as the Chinese patent file, and this vibrating motor comprises stator, rotor, brush group and oscillator; Wherein the brush group is fixed in the casing, comprises brush holder and is installed in brush and conducting terminal on this brush holder, and this brush has two, and wherein the position contacting of each brush and commutator has the thin slice of two broach shapes, leaves certain intervals between the two-layer thin slice.Because the bending part wider width of the brush of this vibrating motor, elastic restoring force is bigger, contact area is bigger between brush and the commutator simultaneously, shunt circuit is less, when so commutator rotates relative to brush, can produce more commutation spark and disturb electromagnetism, this has not only influenced the power output of vibrating motor, has also shortened the useful life of vibrating motor.
The utility model content
For this reason, the purpose of this utility model is to provide between a kind of brush and the commutator frictional force less, and it is little to produce commutation spark, a kind of lead-type cylinder vibrating motor of high efficiency, long service life.
For achieving the above object, the utility model is by the following technical solutions:
A kind of lead-type cylinder vibrating motor, have the sheathed successively housing of ecto-entad, armature winding, magnet steel, bearing holder (housing, cover), axle, one end of described housing is provided with end cap, and the inboard of described end cap is provided with two brushes, and the outside of described end cap is provided with the lead that is connected with described brush conduction; Described axle is fixedly connected with the commutator that cooperates with described brush towards an end of described end cap; The other end of described axle stretches out the outer part of described housing and is provided with off-centred dipole; Wherein said brush comprises and described brush is packed in installation portion on the described end cap, the electrically conducting contact that contacts with described commutator conduction;
Described electrically conducting contact is set to have three pectination flake structures with upper comb dent, and the width of the bending part of described brush is less than the width of described electrically conducting contact.
Described electrically conducting contact is set to have the pectination flake structure of three broach.
Described installation portion comprises a protuberance, and described end cap inboard is provided with draw-in groove, and described brush is pegged graft by described protuberance and is fixed on the inboard of described end cap.
The head of described protuberance is for easily going into the formula structure, and the middle part of described protuberance is provided with groove.
Described axle is an integral structure with described commutator.
Described magnet steel is arranged on maximum magnetic energy product point place.
Described off-centred dipole and be arranged on to be provided with between the bearing of described shaft end and only pull out packing ring.
The beneficial effects of the utility model are:
1. the part that brush of the present utility model contacts with commutator is the pectination flake structure that comprises three broach, and the width of brush bending part is less than the width at broach place.The resilience force that comb teeth part is divided is set like this to be reduced, thereby reduce the frictional force between broach and the commutator, increased simultaneously the electric current shunt access again, avoid producing in the course of work bigger commutation spark and disturbed electromagnetism, thereby improved efficiency of motor, prolonged the useful life of motor.
2. the part that brush of the present utility model is connected with end cap is provided with protuberance, and brush is pegged graft by protuberance and is fixed on the inboard of described end cap.Fix by the interference fit of protuberance and end cap between brush and the end cap, cancelled traditional some glue and fixed, reached the purpose of saving cost and simplifying technology.
3. axle of the present utility model is an integral structure with commutator, adopt axle to run through commutator on the technology and carry out injection moulding, broken the traditional handicraft of the inner encapsulation of axle, improved a commutator and the low difficult problem of axle concentricity precision, can effectively improve mechanical friction, increase power output.
Description of drawings
For the easier quilt of the content that makes utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model brush;
Reference numeral is expressed as among the figure:
The 1-housing, 2-armature winding, 3-magnet steel, 4-bearing holder (housing, cover), 5-axle, 6-commutator, the 7-end cap, the 8-brush, 81,82, the 83-broach, 84,85-at interval, 86-protuberance, 87-bending part, the 9-lead, 10-off-centred dipole, 11-only pull out packing ring, 12-outer washer, 13-inner washer, 14-bearing.
Embodiment
Referring to Fig. 1, Fig. 1 is a structure explosive view of the present utility model, as can be seen from the figure, lead-type cylinder vibrating motor of the present utility model, have the sheathed successively housing of ecto-entad 1, armature winding 2, magnet steel 3, bearing holder (housing, cover) 4, axle 5, described bearing holder (housing, cover) 4 and magnet steel 3 adhesions, the two ends of described bearing holder (housing, cover) 4 also are fixed with bearing 14, and described bearing 14 is used for back shaft 5.One end of described housing 1 is provided with end cap 7, is fixed with two brushes 8 in the inboard of end cap 7, and the outside of end cap 7 is provided with the lead 9 that is connected with brush 8 conductions.Described axle 5 ends towards described end cap 7 are fixedly connected with the commutator 6 that cooperates with brush 8; The other end of described axle 5 stretches out housing 1 outer part and is provided with off-centred dipole 10; Wherein said brush 8 comprises and described brush 8 is packed in installation portion on the described end cap 7, the electrically conducting contact that contacts with described commutator 6 conductions; Consider processing cost, the electrically conducting contact in the present embodiment is set to have the pectination flake structure of three broach, is followed successively by broach 81, broach 82 and broach 83, referring to Fig. 2.Two brushes, 8 reverse symmetry are fixedly installed on the end cap 7, commutator 6 extends between the broach of two brushes 8 near an end of end cap 7, and contact with the broach of two brushes 8 simultaneously, here the 8 reverse symmetry settings of said two brushes, be meant the position symmetry of two brushes 8 on end cap 7, the broach bearing of trend of two brushes 8 is reverse.
In the present embodiment, the width at bending part 87 places of brush 8 can reduce the resilience force of broach part like this less than the width at broach 81,82,83 places, thereby reduces the friction between broach 81,82,83 and the commutator; Form two intervals 84,85 between three broach 81,82,83, so, both can increase the shunt current path, contact area between brush 8 and the commutator 6 is diminished, thereby bigger commutation spark and electromagnetic interference have been avoided producing in the course of work, and then improved efficiency of motor, prolonged the useful life of motor
Referring to Fig. 2, the installation portion of brush 8 has a protuberance 86, and end cap 7 inboards are provided with draw-in groove, and brush 8 is pegged graft by described protuberance 86 and is fixed on the inboard of described end cap 7.Fix by the interference fit between protuberance 86 and the draw-in groove between brush 8 and the end cap 7 like this, cancelled traditional some glue and fixed, reached the purpose of saving cost and simplifying technology.
Go into the formula structure at the head design Cheng Yi of described protuberance 86, just make the head of protuberance 86 have the chamfering of certain radian, be provided with groove 861 at the middle part of protuberance 86, this design is convenient to be connected and fixed between brush 8 and the end cap 7.
The axle 5 and the commutator 6 of present embodiment are integral structure, run through commutator 6 by axle 5 on the technology and carry out injection moulding, both are fused, so just broken the traditional handicraft of the inner encapsulation of axle, a commutator and the low difficult problem of axle concentricity precision have been overcome, can effectively improve mechanical friction, increase power output.
Magnet steel in the present embodiment 3 is arranged on maximum magnetic energy product point place in addition, and the position of the maximum magnetic energy product point here can be arranged on magnet steel 3 herein through calculating, and can make the maximization of magnetic property utilance, the economical with materials cost.
At off-centred dipole 10 and be arranged on to be provided with between described axle 5 bearing at end 14 and only pull out packing ring 11.Be provided with herein and only pull out packing ring 11 and can effectively control distance between off-centred dipole 10 and the bearing 14.
Above-mentioned embodiment is just explained in detail to the technical solution of the utility model; the utility model has more than and only is confined to the foregoing description; those skilled in the art should be understood that; the improvement on the utility model basis of above-mentioned principle of every foundation and spirit, substitute, all should be within protection range of the present utility model.
Claims (7)
1. lead-type cylinder vibrating motor, have the sheathed successively housing of ecto-entad (1), armature winding (2), magnet steel (3), bearing holder (housing, cover) (4), axle (5), one end of described housing (1) is provided with end cap (7), the inboard of described end cap (7) is provided with two brushes (8), and the outside of described end cap (7) is provided with the lead (9) that is connected with described brush (8) conduction; Described axle (5) is fixedly connected with the commutator (6) that cooperates with described brush (8) towards an end of described end cap (7); The other end of described axle (5) stretches out the outer part of described housing (1) and is provided with off-centred dipole (10); Wherein said brush (8) comprises and described brush (8) is packed in installation portion on the described end cap (7), the electrically conducting contact that contacts with described commutator (6) conduction;
It is characterized in that: described electrically conducting contact is set to comprise to have three pectination flake structures with upper comb dent, and the width of the bending part (87) on the described brush (8) is less than the width of described electrically conducting contact.
2. a kind of lead-type cylinder vibrating motor according to claim 1, it is characterized in that: described electrically conducting contact is set to have the pectination flake structure of three broach.
3. a kind of lead-type cylinder vibrating motor according to claim 2, it is characterized in that: described installation portion comprises a protuberance (86), described end cap (7) inboard is provided with draw-in groove, and described brush (8) is pegged graft by described protuberance (86) and is fixed on the inboard of described end cap (7).
4. a kind of lead-type cylinder vibrating motor according to claim 3 is characterized in that: the head of described protuberance (86) is for easily going into the formula structure, and the middle part of described protuberance (86) is provided with groove (861).
5. a kind of lead-type cylinder vibrating motor according to claim 4 is characterized in that: described axle (5) is an integral structure with described commutator (6).
6. a kind of lead-type cylinder vibrating motor according to claim 5 is characterized in that: described magnet steel (3) is arranged on maximum magnetic energy product point place.
7. a kind of lead-type cylinder vibrating motor according to claim 6 is characterized in that: described off-centred dipole (10) and be arranged on to be provided with between described axle (5) bearing at end and only pull out packing ring (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201410061U CN203104199U (en) | 2013-03-26 | 2013-03-26 | Wire type cylindrical vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201410061U CN203104199U (en) | 2013-03-26 | 2013-03-26 | Wire type cylindrical vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203104199U true CN203104199U (en) | 2013-07-31 |
Family
ID=48855575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201410061U Expired - Lifetime CN203104199U (en) | 2013-03-26 | 2013-03-26 | Wire type cylindrical vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203104199U (en) |
-
2013
- 2013-03-26 CN CN2013201410061U patent/CN203104199U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |