CN100379126C - Bar-type vibration motor - Google Patents
Bar-type vibration motor Download PDFInfo
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- CN100379126C CN100379126C CNB2004100897066A CN200410089706A CN100379126C CN 100379126 C CN100379126 C CN 100379126C CN B2004100897066 A CNB2004100897066 A CN B2004100897066A CN 200410089706 A CN200410089706 A CN 200410089706A CN 100379126 C CN100379126 C CN 100379126C
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- type vibration
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Abstract
A bar-type vibration motor is comprised of a stator unit including a body and a magnet attached in the body; a rotor unit including a rotary shaft having one end fixed to an eccentric weight and the other end fixed to a stationary member, a portion of the rotary shaft adjacent to the eccentric weight being rotatably supported by the body like a cantilever, a commutator having several segments attached on one side of the stationary member, and an armature fixed to the stationary member spaced apart from the magnet, and electrically connected with the commutator; and a power supply unit including a fixing cap fixed to the body and a brush mounted on the fixing cap to supply voltage to the armature.
Description
Priority
The application requires on January 6th, 2004, the priority of the korean patent application No.2004-470 that submits in Korea S Department of Intellectual Property, and its content is incorporated herein for your guidance.
Technical field
The present invention relates to be used for by the rotating eccentricity weight, vibrative vibrating motor, and more particularly, relating to can be by improving supporting construction, the coupled structure of fixed component and the syndeton of commutator and brush of rotating shaft, the bar-type vibration motor of miniaturization itself.
Background technology
As present normally used portable communications equipment, mobile phone has various signal generators and sends various signals to user.
In other words, when receiving message or calling out, signal generator produces sound, light or vibration so that the user can know incoming call message or calling.
Signal generator adopts sound generator usually, is used to produce the tinkle of bells or tune, uses the lighting apparatus and the vibrative vibrator of lamp.
In signal generator, vibrator has various vibrating motors as vibration source, wherein usually according to their structure, vibrating motor is divided into flat oscillating motor and bar-type vibration motor.
Flat oscillating motor is also referred to as the Coin shape viberation motor, because its formation is as thin coin, and the bar shaped vibrating motor is also referred to as the column type vibrating motor, because it has column structure.
Based on electromagnetic induction, and with their structure-irrelevant, operation flat oscillating motor and bar-type vibration motor.
Electromagnetic induction is when electric current flows through the conductor of placing perpendicular to magnetic field, produces the phenomenon of electromagnetic force by magnetic field.
Vibrating motor converts electric energy to mechanical energy and produces vibration by mechanical energy on the basis of electromagnetic induction.
Traditional bar-type vibration motor that the explanation of Fig. 1 example will be described below.
As shown in Figure 1, bar-type vibration motor 100 comprises stator unit 110, rotor unit 130 and power subsystem 150.Stator unit 110 comprises body 112 and magnet 114.
As depicted in figs. 1 and 2, body 112 has at this integrally formed stay pipe 112a, thereby forms double pipe structure.
In other words, body 112 at one end is connected with stay pipe 112a, and the other end opens wide.
On the other hand, at the front end formation bearing insertion groove 112b of the stay pipe 112a that is connected with an end of body 112, and on another surface of stay pipe 112a, connect magnet 114 so that magnet 114 is placed in the body 112.
Then, will explain rotor unit 130.
At the fixing eccentric counterweight 131 of an end of rotating shaft 132, and at the fixing fixed component 138 of the other end of rotating shaft 12.
On the side of fixed component 138, connect commutator 134 with several single sections.
Therefore, on the side of fixed component 138, connect the commutator 134 of single section so that around the periphery of protruding 138a.
As mentioned above, be connected and fixed member 138, and connect armature 136 in the periphery of fixed component 136 at the other end of rotating shaft 132.Armature 136 is electrically connected with commutator 134.
On the other hand, rotating shaft 132 inserts stay pipe 112a, with and two ends rotatably support by second bearing 104 of the clutch shaft bearing 102 that inserts bearing insertion groove 112b and the rear end of inserting stay pipe 112a respectively.
Then, will explain power subsystem 150.
When locking cap 152 was connected with the other end of body 112, brush 154 contact rings were around the commutator 134 of the periphery of protruding 138a.
By the lead-in wire that is connected with brush 154, with electric power from application of power in brush on 154.
If as mentioned above electric power is applied on the brush 154, the commutator 134 by by brush 154 contacts is provided to voltage on the armature 136.
Therefore, the electromagnetism at 136 at magnet 114 fixing on stay pipe 112a the outer surface and armature is applying torque on the armature 136.
When rotating this rotating shaft 132,, produce vibration by eccentric counterweight fixing on the end that is rotated in rotating shaft 132 by the torque that produces as mentioned above.
Yet traditional bar-type vibration motor 100 has following problems.
When impact is applied on the mobile phone with above-mentioned traditional bar-type vibration motor 100 (for example when mobile phone falls),, impact being sent to first and second bearings 102 and 104 by rotating shaft 132.
Then, in first and second bearings 102 and 104 of rotating shaft were provided, bigger impact was applied to clutch shaft bearing 102, removed more adjacent eccentric counterweight 131, thereby caused frequently changing the problem of the inside diameter of clutch shaft bearing 102.
On basis at electromagnetic induction, normal when producing vibration by rotating this rotating shaft 132, also produce uneven wearing and tearing so that than second bearing 104 clutch shaft bearing 102 that weares and teares quickly.
This takes place because of be applied on the clutch shaft bearing 102 of impact load by eccentric counterweight 131 more, and uneven wearing and tearing are because bearing deformation has shortened the life-span of bar-type vibration motor and the unnecessary noise of generation in this rotating shaft 132 of rotation.
As the solution of the problems referred to above, proposed to be used to be increased in it and applied the more method of the length of the bearing of heavy load (clutch shaft bearing).
That is, this method increased the bearing insertion groove 112b that in an end of body 12, forms the degree of depth and will be more long bearing or several bearing insert among the bearing insertion groove 112b so that reduce owing to impact bearing deformation or the uneven wearing and tearing that bring.
But, if the degree of depth that increases bearing insertion groove 112b will reduce the length of magnet 114 with the space in the body 112 that reduces pro rata so that increase the length of the bearing that inserts bearing insertion groove 112b as above.This has brought owing to reduce the area that is used to form magnetic field, reduces the problem of the performance of vibrating motor.
Therefore, the size of motor forms area so that do not reduce magnetic field because estimation is shaken, and this method seldom is applied to microminiaturized present vibrator.
Simultaneously, because the structure of body as above 112 can not have the space of 112 of eccentric counterweight 131 and bodies, need other retaining element that traditional bar-type vibration motor 100 is connected on mobile phone or the like.
Simultaneously, as depicted in figs. 1 and 2,, should increase the thickness of fixed component 138 so that improve rotating shaft 132 and the axle bonding force of 138 of fixed components because rotating shaft 132 inserts in the fixed component 138 regularly.
In addition, as shown in Figure 2, be difficult to microminiaturized vibrating motor, because on the side of fixed component 138, form protruding 138a so that brush 154 is connected with commutator 134.
Simultaneously because commutator 134 is divided into several sections, when brush 154 from one during to another contact-segment, produce spark at commutator 134 and 154 of brushes.
Unfortunately, spark damage commutator 134 or the brush 154 that as above produces.
Summary of the invention
Therefore, made the present invention to solve the problems referred to above of prior art.
The purpose of this invention is to provide bar-type vibration motor so that protrude body and support the rotation axle head adjacent, so that improve shock-resistant with eccentric counterweight with improved revolute axes configuration.
Another object of the present invention provides the coupled structure by improvement fixed component and rotating shaft, and the contact structures of commutator and brush, can microminiaturized bar-type vibration motor own.
Another object of the present invention provides has the rheostat that connects so that prevent because the improved bar-type vibration motor of spark damage brush or commutator on commutator.
Another object of the present invention provides and can leave the space to guarantee to be used for the bar-type vibration motor in the required space of assembling itself between eccentric counterweight and body, does not have other retaining element so that can easily it be installed.
Aspect of the present invention according to being used to realize this purpose provides a kind of bar-type vibration motor, comprising: stator unit, comprise integration double pipe structure body and attached to the magnet on the described body; Wherein said body comprises stay pipe, bearing insertion tube protruding and that extend from stay pipe, from backfolding first outer wall of described insertion tube, and protruding and extend and around second outer wall of described stay pipe from described first outer wall; Rotor unit, comprise rotating shaft, eccentric hammer, fixed component, commutator and armature, described rotating shaft has the other end that is fixed to the end on the described eccentric hammer and is fixed to described fixed component, described rotating shaft in the mode of cantilever at rotating shaft near the part of eccentric hammer by the rotatable support of body, described commutator has attached to a plurality of sections on the side of described fixed component, and described armature, be fixed on the described fixed component that separates with described magnet, and be electrically connected with described commutator; And power subsystem, comprise being fixed to the locking cap on the described body and being installed on the described locking cap so that voltage is offered the brush of described armature.
Preferably, body has the bearing insertion tube that stretches out from the one end, and comprises the double pipe structure with the stay pipe that is connected with the bearing insertion tube integral body of body, and magnet is fixed on the outer surface of stay pipe.
Preferably, armature comprises coil.
Preferably, commutator comprises the conducting metal chip that also is electrically connected with armature respectively attached on the side of fixed component.
Preferably, commutator comprises the conductive pattern that also is electrically connected with armature respectively on the side that is printed on fixed component.
Preferably, commutator comprises circuit board, and circuit board has conductive pattern that print and that be electrically connected with armature on a side of fixed component.
Preferably, commutator has the lug plate and the commutator that are electrically connected with armature and have rheostat on an one side, is used to prevent to contact the spark that produces with commutator by brush.
Better, circuit board is printed circuit board (PCB) (PCB) or flexible printed circuit board (FPC).
Simultaneously, fixed component forms dish, and armature is placed attached to the outer of fixed component.
Preferably, the whole formation so that hold coupling component and coupling component therein of fixed component and rotating shaft comprises the locating snap ring that is fixed on the rotating shaft or inserts latch in the rotating shaft regularly.
Preferably, brush is fixed on the circuit board that is installed in the locking cap so that electrical connection circuit board and circuit board are PCB or FPC.
Simultaneously, brush have free end and with the stiff end of sharp bend so that the Elastic Contact commutator.
According to the another aspect of the present invention that is used to realize this purpose, a kind of bar-type vibration motor is provided, comprise: the hollow round column stator unit, comprise the double-tube type body that has at the stay pipe of its outside upper support magnet, bearing insertion tube protruding and that extend from stay pipe, from backfolding first outer wall of described insertion tube, and protruding and extend and around second outer wall of described stay pipe from described first outer wall; Rotor unit, comprise rotating shaft, have by the end and the fixing other end of fixed component that insert the bearing rotation support in the described bearing insertion tube and fix by being connected with commutator by the eccentric hammer adjacent with described bearing, and the armature that is fixed to described fixed component and separates with described magnet, wherein said rotating shaft is rotated support by described bearing in the mode of cantilever; And power subsystem, comprise the locking cap that is fixed on the described body and be electrically connected so that voltage is offered the brush of described armature with circuit board in being installed in described locking cap.
Preferably, armature comprise that coil and brush have free end and with the stiff end of sharp bend so that the Elastic Contact commutator.
Preferably, commutator comprises on the side that is fixed to fixed component and the conducting metal chip that is electrically connected with armature.
Simultaneously, the commutator conductive pattern that comprises on the side that is printed on fixed component and be electrically connected to each other with armature.
Simultaneously, commutator comprises circuit board, and circuit board has on a side of fixed component and the printing conductive figure that is electrically connected with armature.
Preferably, commutator has the lug plate that is electrically connected with armature and have rheostat on an one side, is used to prevent to contact the spark that produces with commutator by brush.
Better, circuit board is PCB or FPC, and fixed component forms dish, and armature is placed attached to the outer of fixed component.
Preferably, the whole formation so that hold coupling component and coupling component therein of fixed component and rotating shaft comprises the locating snap ring that is fixed on the rotating shaft or inserts latch in the rotating shaft regularly.
Preferably, brush is fixed on the circuit board that is installed in the locking cap so that be electrically connected circuit board, and circuit board is PCB or FPC.
Description of drawings
Fig. 1 is the side cross-sectional view of the traditional bar-type vibration motor of example explanation;
Fig. 2 is the perspective view of the body of example explanation traditional bar-type vibration motor shown in Figure 1;
Fig. 3 is the decomposition diagram of example explanation bar-type vibration motor according to a preferred embodiment of the invention;
Fig. 4 is the side cross-sectional view of example explanation bar-type vibration motor according to a preferred embodiment of the invention;
The explanation of Fig. 5 a to 5c example is according to the rotating shaft and the coupling component of bar-type vibration motor of the present invention, wherein the explanation of Fig. 5 a example is according to the rotating shaft and the coupling component of the bar-type vibration motor of the first embodiment of the present invention, the improvement of those shown in Fig. 5 b example key diagram 5a, and second improvement shown in Fig. 5 c example key diagram 5a;
Fig. 6 a and the explanation of 6b example are according to the commutator of bar-type vibration motor of the present invention, wherein Fig. 6 a is the front and back view of the commutator of example explanation metal chip (metal chip) formation, and Fig. 6 b is the front and back view of the commutator of example explanation printed circuit board (PCB) formation; And
Fig. 7 is the side cross-sectional view of example explanation bar-type vibration motor according to another embodiment of the invention.
Embodiment
As shown in Figure 3, bar-type vibration motor 1 according to the present invention comprises stator unit 10, rotor unit 30 and power subsystem 50, wherein at first describes stator unit 10.
In other words, as shown in Figure 4, body 12 has double pipe structure, and wherein stay pipe 12a is connected with an end of body 12 and is arranged in body 12.
In this case, bearing insertion tube 12b is formed in the body 12, is positioned at the front end of stay pipe 12a.
Form bearing insertion tube 12b by the first outer wall 12c.
The first outer wall 12c reaches the outside from an end of body 12, and bearing insertion tube 12b is formed among the first outer wall 12c.
On the other hand, the other end of body 12 forms open type hollow round column body.
Because the diameter of whole formation of bearing insertion tube 12b and stay pipe 12a so that bearing insertion tube 12b is greater than the inside diameter of stay pipe 12a, the ladder of bearing insertion tube 12b through forming between the two at them is connected with stay pipe 12a.
In this case, the stay pipe 12a rear end that is shorter than body 12 so that stay pipe 12a is arranged in body 12.
By with magnet 14 attached to forming stator unit 10 on the body 12, and on the outer surface of magnet 14 attached to stay pipe 12a, as shown in Figure 4.
Then, will explain rotor unit 30.
As shown in Figure 3, rotor unit 30 comprises rotating shaft 32 and armature 36, and eccentric hammer 37 is fixed on an end of rotating shaft 32.
In this case, eccentric hammer 37 has the center of gravity that forms off-centre around patchhole 37a.
Therefore, produce vibration around patchhole 37a rotating eccentricity weight 37.
On the other hand, the rotating shaft 32 that is fixed to eccentric hammer 37 is fixed on the body 12 so that rotatably supporting rotating shaft 32 is as cantilever.
In other words, as shown in Figure 4, bearing 16 is inserted among the bearing insertion tube 12b that forms on the body 12, and rotating shaft 32 is inserted through bearing 16 as the stay pipe 12a in the body 12 of the rotatable support of cantilever.
In this case, eccentric hammer 37 is positioned on the rotating shaft 32 adjacent with the position of bearing 16 supporting rotating shafts 32.
The bearing that supports the rotating shaft 32 adjacent with eccentric hammer 37 has sufficiently long length so that thereby it can disperse external force indeformable.
On the other hand, fixed component 38 is fixed to the other end of the rotating shaft 32 of rotatable support in body 12, as cantilever.
On the side of commutator 34 that is divided into several sections, makes by the electric conducting material chip attached to fixed component 38.
In this case, be different from traditional fixed component, fixed component 38 is the flat dish-types with the projection that forms on an one side, and flat dish-type commutator 34 is attached on the fixed component 38.
In this case, as mentioned above, the commutator 34 with several sections is attached on the fixed component 38, and is electrically connected with armature 36.
In other words, commutator 34 is electrically connected so that voltage offered the coil that can be wrapped on the armature 36 through the cable (not shown) and maybe can be included in winding conducting wire in the armature 36.
Therefore, when using commutator 34, external voltage is provided to armature 36.
Although the invention describes the relevant commutator of making by the lead metal chip 34, can replace commutator 34 with the conductive pattern on the side that directly is printed on fixed component 38.In this case, conductive pattern directly is electrically connected with armature 36.
In addition, commutator 34 also can replace so that armature 36 is connected with conductive pattern with the circuit board that has conductive pattern on it.
In this case, circuit board preferably adopts printed circuit board (PCB) (PCB) or flexible printed circuit board (FPC), but goes for having any situation of conductive pattern.
On the other hand, as shown in Figure 4, fixed component 38 has at this integrally formed coupling component 33, and wherein coupling component 33 is connected with the other end of rotating shaft 32.
The other end at rotating shaft 32 has coupling groove 32a, and coupling component 33 and coupling groove 32a coupling.
In other words, after coupling component 33 and coupling groove 32a coupling, can injection molding fixed component 38 with at this integrally contained coupling component 33.
Therefore, more thin type becomes fixed component 38 to keep axial bonding force at rotating shaft 32 and 38 of fixed components simultaneously.
Shown in Fig. 5 a, and coupling component 33 has the opening 33a of the coupling groove 32a coupling that is used for and forms at rotating shaft 32 according to the rotating shaft 32 of the first embodiment of the present invention and coupling component 33.
On the other hand, Fig. 5 b be example explanation be used for according to the improved rotating shaft 32 of Fig. 5 a ' and coupling component 33 ' the view of coupled structure.
In other words, flat end 33b ' be formed on coupling component 33 ' opening 33a ' in and flat end 32b ' be formed on coupling groove 32a ' so that terminal 33b ' and 32b ' are in contact with one another to prevent coupling component 33 ' around rotating shaft 32 ' rotation.
Therefore, the fixed component that is injection molded as coupling component 33 has improved the axial bonding force of rotating shaft 32, and torque more effectively can be sent to rotating shaft from armature.
Fig. 5 c represents according to the second improved rotating shaft 32 among Fig. 5 a " and coupling component 33 ", wherein the rotating shaft 32 replacement coupling component that " can have patchhole 32a ' replacements coupling groove and latch 33 ".
On the other hand, as shown in Figure 4, on the side of commutator 34 attached to fixed component 38, commutator 34 can be electrically connected with the armature of fixing around fixed component 38 36 by the cable (not shown).
In this case, shown in Fig. 6 a, commutator 34 can be to be divided into several sections metal chip, and has from commutator 34 radially-protruding terminal 34a, is used for being connected with armature 36.
And rheostat 34b can adhere to or be formed on the commutator 34 so that prevent that with during brush contacts, by spark damage, this will be described below.
On the other hand, shown in Fig. 6 b, commutator 34 can be the PCB that is printed with conductive pattern thereon.
In this case, figure can be formed on the side of PCB as rheostat 34b.
In the present embodiment, when with PCB when the commutator, any one with conductive pattern can be used as commutator.
Then, will explain power subsystem 50.
As shown in Figure 3, power subsystem 50 comprises locking cap 52 and brush 54, and locking cap 52 outer place form coupling ladder 52b in case with the other end that the opens wide coupling of body 12.
Has opening 52a so that board member 56 can be positioned on the opening 52a with the locking cap 52 of the other end that the opens wide coupling of body 12 at this.
The lead-in wire (not shown) is electrically connected so that voltage is provided to board member 56 with the conductive pattern that forms on board member 56.
Therefore, brush 54 is applied to external voltage on the armature 36 by board member 56.
On the other hand, as shown in Figure 4, the coupling of the other end of locking cap and body 12, and brush 54 and commutator 34 Elastic Contact that are fixed to fixed component 38.
In this case, brush 54 has the stiff end 54a of fixed head member 56 and the free end 54b of contact commutator 34, and stiff end 54a is with respect to free end 54b, with sharp bend.
In other words, when the other end coupling of locking cap 52 and body 12, free end 54b by free end to stiff end 54a compression in case Elastic Contact attached to the commutator on the fixed component 38 34.
When board member 56 that PCB or FPC are fixed to the upper as the stiff end 54a of brush 54, have any of conductive pattern and can be used as board member 56.
Fig. 7 represents bar-type vibration motor according to another embodiment of the present invention, and it has the magnet 14 of the inside that is fixed to body 12 and the armature 36 that separates with magnet 14, and is different with the foregoing description.
The miscellaneous part of another embodiment of the present invention is same as the previously described embodiments, therefore, will not describe them hereinafter.
Hereinafter, will the operation according to bar-type vibration motor of the present invention be described with reference to figure 4.
After receiving voice or text, the mobile phone that is equipped with according to bar-type vibration motor 1 of the present invention is provided to voltage in the bar-type vibration motor by the lead-in wire (not shown).
In other words,, will be applied in the brush 54 by the voltage that lead-in wire provides through board member 56, and the commutator that passes through Elastic Contact brush 54, be provided to armature 36.
If as mentioned above voltage is provided to armature 36, by electromagnetic induction, i.e. the reciprocation of 36 at magnet 14 in the body 12 and armature, 37 rotation of the eccentric hammer by being fixed to rotating shaft 32 produces vibration.
On the other hand, when impact load is applied to according to the present invention, when being equipped with on the mobile phone of bar-type vibration motor 1, impact load is sent to stator unit 10 by rotating shaft 32.
The impact load that is sent to stator unit 10 is applied to and is arranged in body 12, is used for the bearing 16 of supporting rotating shaft 32.
In this case, bearing 16 long enoughs disperse impact load, so that be not easy to make bearing 16 distortion.
In other words, by in the part adjacent with eccentric hammer 37, that is, the part of load centralization on rotating shaft 32 supports the rotating shaft 32 as suspended wall reliably, has improved shock-resistant according to bar-type vibration motor of the present invention.
Because use a bearing, bar-type vibration motor according to the present invention can easier assembling than the traditional bar-type vibration motor with the supporting construction that is used for two bearings of concentrated assembling.Simultaneously, owing to these parts that stably are supported under the high capacity,, can prolong the life-span of bar-type vibration motor by preventing the imbalance wearing and tearing of bearing.
By accurately only forming bearing insertion tube 12b, the defective proportion that can save manufacturing cost and reduce body 12 is not because need to inform degree of stretching accurately and the circularity of stay pipe 12a.
Owing to the supporting construction of rotating shaft is improved to the suspended wall supporting construction and makes bearing insertion tube 12b protruding from body 21,, also needn't shorten the length of magnet or the size of increase vibrating motor even increase the length of bearing.
In other words, as shown in Figure 4, owing to, needn't shorten the length of magnet 14 not providing magnet 14 in the other end by the rotating shaft 32 of bearings.
Therefore, because do not reduce formation district, magnetic field, can not worsen according to the performance of bar-type vibration motor of the present invention.
Can install easily, and not have other retaining element, because, obtain the gap of 12 of eccentric hammer 37 and bodies by from body 12 outwardly directed bearing insertion tube 12b according to bar-type vibration motor of the present invention.
The present invention uses flat dish-type fixed component 38 and improves commutator 34 and the contact structures of brush 54, so that brush 54 flexibly contact the brush 54 that is fixed to fixed component 38, so that minimize the size that brush 54 is out of shape and reduces vibrating motor.
On the other hand, fixed component can keep the axial bonding force of rotating shaft 32 to reduce thickness simultaneously because its by unitary, injection-molded in rotating shaft 32, wherein, be used for being contained in fixed component 38 with the coupling component 33 of rotating shaft 32 coupling.
Simultaneously, because the present invention is modified into fixed component 38 contact structures of flattened round and brush 54 and commutator 34 so that contacts 54 and contacts with the commutator 34 that is fixed to fixed component 38, the protruding 138a that forms in traditional fixed component 138 becomes unnecessary, thereby can the minimized vibrations motor.
Can protect commutator 34 or brush 54 to avoid damage, reduce spark because on a side of commutator 34, form rheostat at the spark of commutator 34 and 54 generations of brush.
Although described the present invention, the invention is not restricted to this, but limit by the accessory claim book with reference to the embodiment and the accompanying drawing of special example explanation.Those skilled in the art will recognize and to substitute, to change or to be modified as various forms by these embodiment, and do not depart from the scope of the present invention and spirit.
As mentioned above, bar-type vibration motor according to the present invention provides the bearing of lengthening in rotating shaft part under point-load, is used for fully distributed load so that with more stable suspended wall support construction supports rotating shaft.Therefore, this durability of having improved vibrating motor is come life-saving and is convenient to assemble bearing and makes body, thereby reduces defective proportion.
In addition, the present invention has improved contact structures between commutator and brush and the coupled structure between fixed component and rotating shaft so that further microminiaturized vibrating motor.Simultaneously, rheostat is installed on the commutator to prevent that brush or commutator are subjected to spark damage.
In addition, can install easily and the other retaining element of needs not according to bar-type vibration motor of the present invention, because between eccentric hammer and body, be provided for the fixedly required space of vibrating motor.
Claims (31)
1. bar-type vibration motor comprises:
Stator unit, comprise integration double pipe structure body and attached to the magnet on the described body; Wherein said body comprises stay pipe, bearing insertion tube protruding and that extend from stay pipe, from backfolding first outer wall of described insertion tube, and protruding and extend and around second outer wall of described stay pipe from described first outer wall;
Rotor unit, comprise rotating shaft, eccentric hammer, fixed component, commutator and armature, described rotating shaft has the other end that is fixed to the end on the described eccentric hammer and is fixed to described fixed component, described rotating shaft in the mode of cantilever at rotating shaft near the part of eccentric hammer by the rotatable support of body, described commutator has attached to a plurality of sections on the side of described fixed component, and described armature, be fixed on the described fixed component that separates with described magnet, and be electrically connected with described commutator; And
Power subsystem comprises being fixed to the locking cap on the described body and being installed on the described locking cap so that voltage is offered the brush of described armature.
2. bar-type vibration motor as claimed in claim 1, wherein, described magnet is fixed on the outer surface of described stay pipe.
3. bar-type vibration motor as claimed in claim 1, wherein, described armature comprises coil.
4. bar-type vibration motor as claimed in claim 1, wherein, described commutator comprises the conducting metal chip that also is electrically connected with described armature respectively attached on the side of described fixed component.
5. bar-type vibration motor as claimed in claim 1, wherein, the conductive pattern that described commutator comprises on the side that is printed on described fixed component and is electrically connected with described armature respectively.
6. bar-type vibration motor as claimed in claim 1, wherein, described commutator comprises circuit board, described circuit board has conductive pattern that print and that be electrically connected with described armature on a side of described fixed component.
7. bar-type vibration motor as claimed in claim 1, wherein, described commutator has the lug plate that is electrically connected with described armature.
8. bar-type vibration motor as claimed in claim 1, wherein, described commutator has rheostat on an one side, is used to prevent to contact the spark that produces with described commutator by described brush.
9. bar-type vibration motor as claimed in claim 6, wherein, described circuit board is printed circuit board (PCB) or flexible printed circuit board.
10. bar-type vibration motor as claimed in claim 1, wherein, described fixed component forms dish, and described armature is placed attached to the outer of described fixed component.
11. bar-type vibration motor as claimed in claim 1, wherein, described fixed component and described rotating shaft are whole to be formed so that hold coupling component therein.
12. bar-type vibration motor as claimed in claim 11, wherein, described coupling component comprises the locating snap ring that is fixed on the described rotating shaft.
13. bar-type vibration motor as claimed in claim 11, wherein, described coupling component comprises the latch that inserts regularly in the described rotating shaft.
14. bar-type vibration motor as claimed in claim 1, wherein, described brush is fixed on the circuit board that is installed in the described locking cap so that be electrically connected described circuit board.
15. bar-type vibration motor as claimed in claim 14, wherein, described circuit board is printed circuit board (PCB) or flexible printed circuit board.
16. bar-type vibration motor as claimed in claim 1, wherein, described brush have free end and with the stiff end of sharp bend so that the described commutator of Elastic Contact.
17. a bar-type vibration motor comprises:
The hollow round column stator unit, comprise the double-tube type body that has at the stay pipe of its outside upper support magnet, bearing insertion tube protruding and that extend from stay pipe, from backfolding first outer wall of described insertion tube, and protruding and extend and around second outer wall of described stay pipe from described first outer wall;
Rotor unit, comprise rotating shaft, have by the end and the fixing other end of fixed component that insert the bearing rotation support in the described bearing insertion tube and fix by being connected with commutator by the eccentric hammer adjacent with described bearing, and the armature that is fixed to described fixed component and separates with described magnet, wherein said rotating shaft is rotated support by described bearing in the mode of cantilever; And
Power subsystem comprises the locking cap that is fixed on the described body and is electrically connected so that voltage is offered the brush of described armature with circuit board in being installed in described locking cap.
18. bar-type vibration motor as claimed in claim 17, wherein, described armature comprises coil.
19. bar-type vibration motor as claimed in claim 17, wherein, described brush have free end and with the stiff end of sharp bend so that the described commutator of Elastic Contact.
20. bar-type vibration motor as claimed in claim 17, wherein, described commutator comprises on the side that is fixed to described fixed component and the conducting metal chip that is electrically connected with described armature.
21. bar-type vibration motor as claimed in claim 17, wherein, the conductive pattern that described commutator comprises on the side that is printed on described fixed component and is electrically connected to each other with described armature.
22. bar-type vibration motor as claimed in claim 17, wherein, described commutator comprises circuit board, and described circuit board has on a side of described fixed component and the printing conductive figure that is electrically connected with described armature.
23. bar-type vibration motor as claimed in claim 17, wherein, described commutator has the lug plate that is electrically connected with described armature.
24. bar-type vibration motor as claimed in claim 17, wherein, described commutator has rheostat on an one side, is used to prevent to contact the spark that produces with described commutator by described brush.
25. bar-type vibration motor as claimed in claim 22, wherein, described circuit board is printed circuit board (PCB) or flexible printed circuit board.
26. bar-type vibration motor as claimed in claim 17, wherein, described fixed component forms dish, and described armature is placed attached to the outer of described fixed component.
27. bar-type vibration motor as claimed in claim 17, wherein, described fixed component and described rotating shaft are whole to be formed so that hold coupling component therein.
28. as the bar-type vibration motor of claim 27, wherein, described coupling component comprises the locating snap ring that is fixed on the described rotating shaft.
29. as the bar-type vibration motor of claim 27, wherein, described coupling component comprises the latch that inserts regularly in the described rotating shaft.
30. bar-type vibration motor as claimed in claim 17, wherein, described brush is fixed on the circuit board that is installed in the described locking cap so that be electrically connected described circuit board.
31. bar-type vibration motor as claimed in claim 30, wherein, described circuit board is printed circuit board (PCB) or flexible printed circuit board.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040000470 | 2004-01-06 | ||
| KR1020040000470A KR100541103B1 (en) | 2004-01-06 | 2004-01-06 | Bar-type vibration motor |
| KR1020040009506 | 2004-02-13 | ||
| KR1020040009506A KR20050081317A (en) | 2004-02-13 | 2004-02-13 | Bar type vibration motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1638238A CN1638238A (en) | 2005-07-13 |
| CN100379126C true CN100379126C (en) | 2008-04-02 |
Family
ID=34829528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100897066A Expired - Fee Related CN100379126C (en) | 2004-01-06 | 2004-11-02 | Bar-type vibration motor |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005198482A (en) |
| CN (1) | CN100379126C (en) |
| TW (1) | TW200524250A (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100722601B1 (en) * | 2005-09-16 | 2007-05-28 | 삼성전기주식회사 | Vibration motor |
| JP4891645B2 (en) * | 2006-04-14 | 2012-03-07 | 日本電産コパル株式会社 | Vibration motor |
| CN201118288Y (en) * | 2007-11-09 | 2008-09-17 | 赖国荣 | Motor magnet immobilizing structure |
| CN102510165B (en) * | 2011-11-02 | 2013-10-23 | 无锡富岛精工有限公司 | Reversible vibration motor |
| CN108233132A (en) * | 2017-12-29 | 2018-06-29 | 扬州海通电子科技有限公司 | A kind of inner supporting structure of large size power transmission sliding ring |
| CN111618377B (en) * | 2020-06-08 | 2021-09-07 | 香河凯华齿轮有限公司 | Gear grinding device |
| CN112072861B (en) * | 2020-08-24 | 2022-04-19 | 清华大学 | Device for supplying power to moving circuit in contact mode |
| CN112636627B (en) * | 2020-12-07 | 2022-09-16 | 杭州电子科技大学 | Electrostatic motor based on electret film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06284662A (en) * | 1991-05-24 | 1994-10-07 | Tokyo Parts Ind Co Ltd | Tubular brushless oscillation motor |
| JPH1169746A (en) * | 1997-08-08 | 1999-03-09 | Shicoh Eng Co Ltd | Tubular micro oscillation motor |
-
2004
- 2004-08-27 TW TW93125745A patent/TW200524250A/en unknown
- 2004-08-30 JP JP2004250143A patent/JP2005198482A/en active Pending
- 2004-11-02 CN CNB2004100897066A patent/CN100379126C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06284662A (en) * | 1991-05-24 | 1994-10-07 | Tokyo Parts Ind Co Ltd | Tubular brushless oscillation motor |
| JPH1169746A (en) * | 1997-08-08 | 1999-03-09 | Shicoh Eng Co Ltd | Tubular micro oscillation motor |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200524250A (en) | 2005-07-16 |
| CN1638238A (en) | 2005-07-13 |
| JP2005198482A (en) | 2005-07-21 |
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