CN205792142U - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
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- CN205792142U CN205792142U CN201620508007.9U CN201620508007U CN205792142U CN 205792142 U CN205792142 U CN 205792142U CN 201620508007 U CN201620508007 U CN 201620508007U CN 205792142 U CN205792142 U CN 205792142U
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- mass
- buffering ring
- vibration motor
- linear vibration
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Abstract
This utility model provides a kind of linear vibration motor, and including housing and the vibrational system that is contained in housing, vibrational system includes frame and sheathed and be fixed on the mass outside frame；The end face pressing close to housing in frame is provided with circular groove, is equipped with circular cushion pad at circular groove, and cushion pad exceeds the end face of frame；The upper and lower surface of mass and the junction of sidewall being provided with annular groove, is equipped with buffering ring at annular groove, the diameter of buffering ring is more than the external diameter of mass, and buffering ring exceeds the upper and lower surface of mass.Utilize this utility model, it is possible to problem is touched in the wiping solved between vibrational system and upper casing or shell fragment, thus improves the performance and used life of product.
Description
Technical field
This utility model relates to consumer electronics field, more specifically, relating to the linear vibration motor of a kind of portable consumer electronics product.
Background technology
Along with the development of communication technology, portable type electronic product, as mobile phone, handheld device or palm multimedia entertainment equipment etc. enter the life of people.In these portable type electronic products, typically can do system feedback with vibrating motor, the incoming call prompting of such as mobile phone, the vibrational feedback etc. of game machine.But, along with the lightening development trend of electronic product, its internal various components and parts also need to adapt to this trend, and vibrating motor is no exception.
Existing linear vibration motor includes upper casing, lower casing and the vibrational system accommodating intracavity being housed in upper and lower shell composition and stator system, wherein, vibrational system includes mass, permanent magnet, washer, frame and shell fragment, stator system includes FPCB (Flexible Printed Circuit Board, flexible circuit board) and coil.Vibrational system, when vibration, is easily touched with upper casing (end face, sidewall) or shell fragment wiping at direction of vibration and vertical vibration direction, and is produced noise, thus affect the performance of product with service life.
Therefore, in order to solve the problems referred to above, the utility model proposes a kind of new linear vibration motor.
Utility model content
In view of the above problems, the purpose of this utility model is to provide a kind of linear vibration motor, touches problem solving the wiping between vibrational system and upper casing or shell fragment, thus improves the performance and used life of product.
The linear vibration motor that this utility model provides, including housing and the vibrational system that is contained in housing, wherein, vibrational system includes frame and sheathed and be fixed on the mass outside frame；Wherein,
Pressing close to be provided with circular groove on the end face of housing in frame, be equipped with circular cushion pad in circular groove, cushion pad exceeds the end face of frame；
Being respectively provided with annular groove in the upper and lower surface of mass and the junction of sidewall, assemble buffering ring in annular groove, the diameter of buffering ring is more than the external diameter of mass, and buffering ring exceeds the upper and lower surface of mass.
In addition, preferably structure is, the upper surface of mass and the junction of sidewall is provided with first annular groove, is equipped with the first buffering ring in first annular groove, the diameter of the first buffering ring is more than the external diameter of mass, and the first buffering ring exceeds the upper surface of mass；
The lower surface of mass and the junction of sidewall being provided with the second annular groove, is equipped with the second buffering ring in the second annular groove, the diameter of the second buffering ring is more than the external diameter of mass, and the second buffering ring exceeds the lower surface of mass.
Furthermore it is preferred that structure be, cushion pad use gluing mode be fixed on circular groove；
First buffering ring, the second buffering ring are respectively adopted the mode of gluing and are fixed on first annular groove, the second annular groove.
Furthermore it is preferred that structure be that cushion pad is foam cushion or rubber blanket；Buffering ring is foam ring or rubber ring.
Furthermore it is preferred that structure be that vibrational system also includes permanent magnet and the washer being housed in frame, between frame sidewall and permanent magnet formed magnetic gap.
Furthermore it is preferred that structure be that linear vibration motor also includes the stator system being contained in housing；Wherein, stator system includes coil and FPCB；One end of coil is suspended in magnetic gap, the conducting fixing with FPCB of the other end of coil.
Furthermore it is preferred that structure be that housing includes upper casing and the lower casing suitable with upper casing；Wherein, upper casing is semiclosed cylinder-like structure, and lower casing is fixed on the open end of upper casing.
Furthermore it is preferred that structure be that vibrational system is supported by shell fragment and is suspended in housing.
Furthermore it is preferred that structure be that shell fragment is taper chip type spring, the fixed disk being connected with vibrational system including the fixing end being connected with housing and the resilient attachment arms between fixing end and fixed disk.
Furthermore it is preferred that structure be that shell fragment has elastic deformation space vertically, vibrational system is vertically vibrated under the support of shell fragment.
Knowable to technical scheme above, the linear vibration motor that this utility model provides, it is respectively arranged to assemble the annular groove of buffering ring in the position on the upper and lower surface of mass Yu sidewall, press close to the end face of housing in frame and be provided for assembling the circular groove of cushion pad, the noise utilizing buffering ring and the good cushioning effect of cushion pad effectively to avoid contacting between absorbent gauge block with upper casing or shell fragment and to cause, thus improve the performance and used life of product.
Accompanying drawing explanation
By with reference to below in conjunction with the explanation of accompanying drawing and the content of claims, and along with being more fully understood from of the present utility model, other purpose of the present utility model and result will be more apparent and should be readily appreciated that.In the accompanying drawings:
Fig. 1 is the decomposition texture schematic diagram of the linear vibration motor according to this utility model embodiment；
Fig. 2 is the cross-sectional view of the linear vibration motor according to this utility model embodiment；
Fig. 3 is the buffering ring structural representation according to this utility model embodiment；
Fig. 4 is the cushion structure schematic diagram according to this utility model embodiment.
Reference therein includes: upper casing 1, cushion pad 2, frame 3, circular groove 31, permanent magnet 4, washer 5, first buffering ring the 6, second buffering ring 6 ', mass 7, first annular groove 71, the second annular groove 72, shell fragment 8, coil 9, FPCB10, lower casing 11.
The most identical label indicates similar or corresponding feature or function.
Detailed description of the invention
Below with reference to accompanying drawing, specific embodiment of the utility model is described in detail.
" mass " used in the description of following detailed description of the invention may also be referred to as " balancing weight ", and the vibrating mass referring both to and producing vibration is fixing to strengthen the high-quality of vibration balancing, high desnity metal block.
It addition, this utility model is mainly used in the improvement of vibrating motor, but also it is not excluded for the technology in this utility model is applied to large-scale vibrating motor.But for the aspect stated, in the description of the embodiments below, " linear vibration motor " is identical with the implication that " vibrating motor " represents.
In order to the structure of linear vibration motor that this utility model provides is described, Fig. 1 to Fig. 4 has carried out exemplary sign to the structure of linear vibration motor the most from different perspectives.Specifically, Fig. 1 shows the decomposition texture of the linear vibration motor according to this utility model embodiment；Fig. 2 shows the cross-section structure of the linear vibration motor according to this utility model embodiment；Fig. 3 shows the buffering ring structure according to this utility model embodiment；Fig. 4 shows the cushion structure according to this utility model embodiment.
Common shown as shown in Figure 1 to Figure 4, the linear vibration motor that this utility model provides includes housing and the vibrational system being contained in housing and stator system, and vibrational system includes frame 3, the permanent magnet 4 that is housed in frame 3 and washer 5 and and sheathed and be fixed on the mass 7 outside frame 3.Wherein, the end face pressing close to housing in frame 3 is provided with circular groove 31, is equipped with circular cushion pad 2 in circular groove 31, and cushion pad 2 exceeds the end face of frame 3；It is respectively arranged with annular groove in the upper and lower surface of mass 7 and the junction of sidewall, it is equipped with buffering ring at annular groove, the diameter of buffering ring is more than the external diameter (maximum gauge of mass) of mass 7, and buffering ring exceeds the upper and lower surface of mass 7.
Specifically, housing includes upper casing 1 and the lower casing 11 suitable with upper casing 1；Wherein, upper casing 1 is semiclosed cylinder-like structure, and lower casing 11 is fixed on the open end of upper casing 1.Mass 7 is cirque structure, and the periphery of the sidewall being fitted in frame 3 is fixed in the inner side of mass 7.Vibrational system is supported and is suspended in by shell fragment 8 in housing, and one end of shell fragment 8 is fixing with mass 7 to be connected, and the other end is fixedly connected with the casing, thus vibrational system is hung in housing, and the vibration being vibrational system by shell fragment 8 provides elastic restoring force.Wherein, frame 3, permanent magnet 4 and washer 5 in vibrational system constitute magnetic circuit system, and permanent magnet 4 is housed in frame 3, and are sticked at permanent magnet 4 away from the washer 5 of frame 3 side, form magnetic gap between the sidewall and permanent magnet 4 of frame 3.Stator system includes coil 9 and FPCB10, and wherein, an end line of coil 9 is suspended in magnetic gap, the conducting fixing with electrical connector FPCB10 of the other end of coil 9, and electrical connector FPCB10 is fixed on housing, and is connected with external circuit.
In the linear vibration motor that this utility model embodiment provides, frame 3 can use the material of high magnetic conduction to be made, can fixing with mass 7 by the way of gluing be connected during use, the effect of heat radiation can be played, when avoiding magnetic circuit system to work, temperature is too high, it is ensured that the stable performance of linear vibration motor.
Wherein, it is passed through current signal in coil 9 in stator system, according to lefft-hand rule: stretch out left hand and make thumb perpendicular with other four fingers and be generally aligned in the same plane interior, the magnetic induction line allowing coil 9 produce flows into from the palm of the hand, four point to the sense of current being passed through, then the sensing of thumb is the ampere force direction that coil 9 is subject to.Owing to coil 9 is fixed on electrical connector FPCB10 immovable, relation based on active force Yu counteracting force, magnetic circuit system is by the driving force in opposite direction with coil 9.When the sense of current being passed through in coil 9 changes, the counteracting force direction that magnetic circuit system is subject to also can produce change, above-mentioned motion alternately, makes the vibrational system of magnetic circuit system and mass 7 composition move reciprocatingly in housing, thus realizes the vibration of linear vibration motor.
In the linear vibration motor that this utility model embodiment provides, the endface position pressing close to housing in frame 3 is provided with the circular groove for assembling circular cushion pad 2, cushion pad 2 uses the mode of gluing to be fixed in circular groove, and the size of cushion pad 2 is set according to circular groove and housing end face, cushion pad 2 have to exceed frame 3 and press close to the end face of housing, this is due to when vibrational system is vibrated, the frame 3 of vibrational system easily collides with upper casing 1 and produces noise, and affect the performance and used life of product, it is thus desirable to take into full account the size of cushion pad 2, cushion pad 2 is exceeded the end face of frame, cushion pad 2 just can play cushioning effect, the cushioning effect of cushion pad 2 can be prevented effectively from and absorb frame 3 and touch with upper casing 1 and the noise that causes.
Wherein, it should be noted that, this utility model the design that cushion pad 2 is assemblied in circular groove is compared with existing by direct for cushion pad gluing in the design of the end face of frame, the thickness of cushion pad of the present utility model exceeds existing cushion pad, and the cushioning effect of cushion pad 2 is more than the direct gluing cushioning effect at the cushion pad of frame end face.Therefore, the end face design circular groove pressing close to housing in frame 3 of the present utility model, and assemble and exceed frame 3 and press close to the cushion pad 2 of upper casing end face, it is possible to the noise effectively avoided with absorb frame 3 or mass 7 contacts with upper casing 1 and causes.
In a specific embodiment of the present utility model, upper surface at mass 7 is provided with first annular groove 71 with sidewall junction, the first buffering ring 6 it is equipped with in first annular groove 71, the diameter of the first buffering ring 6 is more than the external diameter (i.e. the maximum gauge of mass) of mass 7, and the first buffering ring 6 exceeds the upper surface of mass 7；Lower surface at mass 7 is provided with the second annular groove 72 with sidewall junction, it is equipped with the second buffering ring 6 ' in the second annular groove 72, the diameter of the second buffering ring 6 ' is more than the external diameter (maximum gauge of mass 7) of mass 7, and the second buffering ring 6 ' exceeds the lower surface of mass 7.That is, Position Design on the upper and lower surface of mass 7 with sidewall junction is used for assembling the annular groove of buffering ring, buffering ring uses the mode of gluing to be fixed in annular groove, and the size of buffering ring is set according to annular groove and mass 7 upper and lower surface, no matter the size of buffering ring is axially or have certain surplus diametrically, this is due to when vibrational system is vibrated, mass in vibrational system 7 easily collides with upper casing 1 and shell fragment 8 and produces noise, affects the performance and used life of product；The noise that the mass 7 that the cushioning effect of cotton ring can effectively be avoided and absorb in vibrational system causes with contacting between upper casing 1 or shell fragment 8.
Cushion pad 2, first buffering ring 6 of this utility model offer and the second buffering ring 6 ' are all the buffer structures of linear vibration motor, wherein, in products application, cushion pad can be foam cushion, or use rubber blanket according to actual needs, buffering ring can use foam ring or use rubber ring, and foam and rubber can play cushioning effect in products application.When vibrational system is upwards vibrated, mass 7 easily collides with upper casing 1, first buffering ring the 6, second buffering ring 6 ' and cushion pad 2 energy cushioning effect, wherein, first buffering ring 6 and 2 main cushioning effects of cushion pad, it is possible to avoid contacting between the mass 7 and the upper casing 1 that absorb in vibrational system and the noise that causes；When vibrational system is vibrated downwards, mass 7 easily collides with upper casing 1, shell fragment 8, first buffering ring 6 and the second buffering ring 6 ' play energy cushioning effect, wherein, first buffering ring 6 is it can be avoided that and contact between the mass 7 and the upper casing 1 that absorb in vibrational system and the noise that causes, the noise that the second buffering ring 6 ' is effectively avoided and the mass 7 that absorbs in vibrational system causes with contacting between upper casing 1, shell fragment 8.Cushion pad the 2, first buffering ring 6 and the cushioning effect of the second buffering ring 6 ', it is possible to body improves the performance and used life of product.
Additionally, in another specific embodiment of the present utility model, shell fragment 8 can use chip type spring, this chip type spring includes fixed disk that the fixing end being connected with peripheral housing is connected and the resilient attachment arms between fixing end and fixed disk with oscillator, by shell fragment 8, vibrational system (include magnetic circuit system and fix the mass 7 being connected with magnetic circuit system) is hung in the space that housing is formed, for the elastic-restoring force of the vibration offer vertically (Z-direction) of vibrational system.
Be can be seen that by above-mentioned embodiment, the linear vibration motor that this utility model provides, it is respectively arranged to assemble the annular groove of buffering ring in the position on the upper and lower surface of mass Yu sidewall, press close to the end face of housing in frame and be provided for assembling the circular groove of cushion pad, utilize the cushioning effect of buffering ring and cushion pad, the noise effectively avoiding contacting between absorbent gauge block with upper casing or shell fragment and cause, thus improve the performance and used life of product.
Describe in an illustrative manner above with reference to accompanying drawing according to the linear vibration motor that the utility model proposes.It will be understood by those skilled in the art, however, that the linear vibration motor that above-mentioned this utility model is proposed, it is also possible on the basis of without departing from this utility model content, make various improvement.Therefore, protection domain of the present utility model should be determined by the content of appending claims.
Claims (10)
1. a linear vibration motor, including housing and the vibrational system that is contained in described housing, wherein,
Described vibrational system includes frame and sheathed and be fixed on the mass outside described frame；It is characterized in that,
The end face that described frame presses close to described housing is provided with circular groove, in described circular groove
Being equipped with circular cushion pad, described cushion pad is higher than the end face of described frame；
It is respectively provided with annular groove, described in the upper and lower surface of described mass and the junction of sidewall
Being equipped with buffering ring in annular groove, the diameter of described buffering ring is more than the external diameter of described mass, and,
Described buffering ring exceeds the upper and lower surface of described mass.
2. linear vibration motor as claimed in claim 1, it is characterised in that
The upper surface of described mass and the junction of sidewall are provided with first annular groove, described the
Being equipped with the first buffering ring in one annular groove, the diameter of described first buffering ring is more than described mass
External diameter, and described first buffering ring exceeds the upper surface of described mass；
The lower surface of described mass and the junction of sidewall are provided with the second annular groove, described the
Being equipped with the second buffering ring in second ring groove, the diameter of described second buffering ring is more than described mass
External diameter, and described second buffering ring exceeds the lower surface of described mass.
3. linear vibration motor as claimed in claim 2, it is characterised in that
Described cushion pad uses the mode of gluing to be fixed on described circular groove；
Described first buffering ring, the second buffering ring are respectively adopted the mode of gluing and are fixed on described first annular
Groove, the second annular groove.
4. linear vibration motor as claimed in claim 1, it is characterised in that
Described cushion pad is foam cushion or rubber blanket；
Described buffering ring is foam ring or rubber ring.
5. linear vibration motor as claimed in claim 1, it is characterised in that
Described vibrational system also includes being housed in the permanent magnet in described frame and washer, in described frame side
Magnetic gap is formed between wall and described permanent magnet.
6. linear vibration motor as claimed in claim 5, it is characterised in that
Described linear vibration motor also includes the stator system being contained in described housing；Wherein,
Described stator system includes coil and FPCB；
One end of described coil is suspended in described magnetic gap, the other end of described coil and described FPCB
Fixing conducting.
7. linear vibration motor as claimed in claim 6, it is characterised in that
Described housing includes upper casing and the lower casing suitable with described upper casing；Wherein,
Described upper casing is semiclosed cylinder-like structure, and described lower casing is fixed on the open end of described upper casing.
8. linear vibration motor as claimed in claim 1, it is characterised in that
Described vibrational system is supported by shell fragment and is suspended in described housing.
9. linear vibration motor as claimed in claim 8, it is characterised in that
Described shell fragment is taper chip type spring, including the fixing end being connected with described housing and described vibration
The fixed disk that system connects and the resilient attachment arms between described fixing end and fixed disk.
10. linear vibration motor as claimed in claim 9, it is characterised in that
Described shell fragment has elastic deformation space vertically, and described vibrational system is at described shell fragment
Vertically vibrate under support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508007.9U CN205792142U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620508007.9U CN205792142U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205792142U true CN205792142U (en) | 2016-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620508007.9U Expired - Fee Related CN205792142U (en) | 2016-05-30 | 2016-05-30 | Linear vibration motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719007A (en) * | 2018-07-11 | 2020-01-21 | Mplus株式会社 | Linear vibration motor |
| CN111050252A (en) * | 2019-12-02 | 2020-04-21 | 歌尔股份有限公司 | Vibration sounding device for electronic product and electronic product |
-
2016
- 2016-05-30 CN CN201620508007.9U patent/CN205792142U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110719007A (en) * | 2018-07-11 | 2020-01-21 | Mplus株式会社 | Linear vibration motor |
| CN110719007B (en) * | 2018-07-11 | 2021-06-29 | Mplus株式会社 | Linear vibration motor |
| CN111050252A (en) * | 2019-12-02 | 2020-04-21 | 歌尔股份有限公司 | Vibration sounding device for electronic product and electronic product |
| US11979725B2 (en) | 2019-12-02 | 2024-05-07 | Goertek Inc. | Vibration sound device for electronic product and electronic product |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161207 Termination date: 20200530 |