CN205385397U - Linear vibrating motor - Google Patents
Linear vibrating motor Download PDFInfo
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- CN205385397U CN205385397U CN201620095850.9U CN201620095850U CN205385397U CN 205385397 U CN205385397 U CN 205385397U CN 201620095850 U CN201620095850 U CN 201620095850U CN 205385397 U CN205385397 U CN 205385397U
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- magnet
- vibration motor
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- magnetic
- mass block
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
The utility model relates to a linear vibrating motor. This linear vibrating motor includes: a housing. Vibration quality piece, the configuration of vibration quality piece is for carrying out linear vibration in the casing, the coil groove has in the vibration quality piece, the coil groove will vibrate the quality piece and divide into that first establish magnetism portion and magnetism portion is established to the second, establish magnetism portion first, at least, in proper order be provided with three first magnets in the interval along the linear vibration direction, same sex magnetic pole between first magnet is just right each other, the second is established and is provided with two second magnets in the magnetism portion at least, the magnetic pole of second magnet is respectively just to the magnetic gap between first magnet, the second magnet is just opposite to the magnetism that the magnetic pole and the magnetic gap of magnetic gap were located, the fixed coil that sets up in the casing, the coil is arranged in the coil groove, the fixed resilient means who sets up in the casing, resilient means are configured as provides the resilience force for vibrating the quality piece. The utility model discloses a technical problem that will solve improves the magnetic field utilization ratio.
Description
Technical field
This utility model belongs to technical field of electronic products, and specifically, this utility model relates to a kind of linear vibration motor.
Background technology
Along with the development of electronic product, the function of electronic product is abundant, diversified gradually.Wherein, vibrating function is very common in electronic product.User can use the vibrating function of electronic product as prompting, alarm clock etc..At present, those skilled in the art generally adopt vibrating motor or piezoelectric patches to produce vibrating effect.
For vibrating motor, wherein generally including vibrating mass and calutron, calutron produces driving force by the effect in alternating current and magnetic field, makes vibrating mass produce vibration.But the magnetic field utilization rate of electronic installation is limited in existing vibrating motor, the magnetic field that magnet produces only has the small part can with alternating current generation effect.So, in order to make vibrating motor reach good vibrating effect, those skilled in the art can only strengthen alternating current or arrange the magnet that magnetic field is higher.
Thus, it is necessary to structure or mode of vibration to vibrating motor improve, improve the vibrating effect of vibrating motor.
Utility model content
A purpose of the present utility model is to improve the utilization rate in magnetic field.
According to an aspect of the present utility model, it is provided that a kind of linear vibration motor, including:
Housing；
Oscillating mass block, described oscillating mass block is configured to carry out linear oscillator in described housing, described oscillating mass block has coil groove, oscillating mass block is divided into first to set magnetic portion and second setting magnetic portion by described coil groove, set in magnetic portion described first, three piece of first magnet at least it is sequentially arranged at intervals with along linear direction of vibration, like pole between described first magnet is oppositely arranged, described second sets in magnetic portion at least provided with two piece of second magnet, the magnetic pole of described second magnet is respectively just to the magnetic gap between described first magnet, described second magnet is just contrary with the magnetic at described magnetic gap place to the magnetic pole of described magnetic gap；
Being fixedly installed on the coil in described housing, described coil is arranged in described coil groove；
Being fixedly installed on the elastic device in described housing, described elastic device is configured to described oscillating mass block and provides resilience force.
Alternatively, described linear vibration motor includes support, and described support is fixedly installed in described housing and through described coil groove, described coil is arranged on described support and is arranged in the part of described coil groove.
Preferably, described coil surrounds rectangle frame, and two long limits of described coil are corresponding with the position of magnetic pole of described second magnet respectively.More preferably, described first sets and is provided with four piece of first magnet in magnetic portion, and described second sets and be provided with three piece of second magnet in magnetic portion, and described linear vibration motor includes two coils being arranged side by side.
Alternatively, described elastic device includes two and supports shell fragment, and described support shell fragment is separately positioned on the described oscillating mass block both sides along linear direction of vibration, and described support shell fragment is fixing with the inside of described housing to be connected.
Alternatively, described elastic device includes two springs, described spring is separately positioned on the described oscillating mass block both sides along linear direction of vibration, and described spring is fixing with the inside of described housing to be connected, and described linear vibration motor includes providing the support component supported for described oscillating mass block.
Alternatively, described coil groove is horizontally installed in the middle part of described oscillating mass block, and described first sets magnetic portion and second sets magnetic portion and lay respectively at the both sides up and down of described coil groove.
Preferably, described first set magnetic portion and/or second and set the outer surface in magnetic portion is provided with washer.
It addition, described housing includes base plate and upper casing, described upper casing is fastened on described base plate and is formed holds chamber.Described linear vibration motor includes circuit board, and described circuit board electrically connects with described coil.
One of the present utility model has technical effect that, magnetic arranges the first magnet in the side of coil, and the opposite side at coil arranges the second magnet of just magnetic gap to the first magnet, thus the utilization rate in magnetic field that enhancing magnet produces.
By referring to the accompanying drawing detailed description to exemplary embodiment of the present utility model, further feature of the present utility model and advantage thereof will be made apparent from.
Accompanying drawing explanation
The accompanying drawing of the part constituting description describes embodiment of the present utility model, and is used for together with the description explaining principle of the present utility model.
Fig. 1 is the explosive view of the linear vibration motor that this utility model specific embodiment provides；
Fig. 2 is the oscillating mass block that provides of this utility model specific embodiment and the side sectional view of coil and support；
Fig. 3 is the side view that the linear vibration motor that this utility model specific embodiment provides removes upper casing；
Fig. 4 is the top view that the linear vibration motor that this utility model specific embodiment provides removes upper casing.
Detailed description of the invention
Of the present utility model various exemplary embodiment is described in detail now with reference to accompanying drawing.It should also be noted that unless specifically stated otherwise, the parts otherwise set forth in these embodiments and positioned opposite, the numerical expression of step and numerical value are not intended to scope of the present utility model.
Description only actually at least one exemplary embodiment is illustrative below, never as any restriction to this utility model and application or use.
The technology and equipment that person of ordinary skill in the relevant is known is likely to be not discussed in detail, but in the appropriate case, described technology and equipment should be considered a part for description.
Shown here with in all examples discussed, any occurrence should be construed as merely exemplary, not as restriction.Therefore, other example of exemplary embodiment can have different values.
It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be further discussed in accompanying drawing subsequently.
This utility model provides a kind of linear vibration motor, improves the utilization rate in magnetic field by improving magnetic circuit therein.Described linear vibration motor includes housing, oscillating mass block, coil and elastic device.Described oscillating mass block is configured to can carry out linear oscillator in described housing, has coil groove in described vibrating mass, and described vibrating mass is divided into two parts by described coil groove.The side of described coil groove is first set magnetic portion, and the opposite side of coil groove is second set magnetic portion.Especially, setting in magnetic portion described first, the linear oscillator direction along described oscillating mass block can three piece first of interval magnet at least successively.Magnetic is placed on described first and sets in magnetic portion by described first magnet, that is, the like pole between multiple described first magnet is oppositely arranged.So, being the formation of magnetic gap between described first magnet, the polarity of magnetic gap is identical with the pole polarity of the first magnet of both sides, and the magnetic field at magnetic gap place is to being perpendicular to linear oscillator direction.And set in magnetic portion described second, and it being provided with at least two piece of second magnet, the magnetic pole of described second magnet is just to the magnetic gap between described first magnet.Especially, described second magnet just magnetic to the magnetic pole of described magnetic gap, with this magnetic gap place carry out contrary.So, set magnetic portion and second first to set and between magnetic portion, just can form the uniform magnetic field that intensity is higher.Also including coil and elastic device in the linear vibration motor that this utility model provides, described coil is arranged on described enclosure interior and is arranged in described coil groove, and described coil is not generally connected with described oscillating mass block.Described elastic device is configured to described oscillating mass block and provides vibration resilience force, i.e. when described oscillating mass block carries out in the process of linear oscillator, described elastic device can the effect of mass vibrated, and then order about oscillating mass block and move to equilbrium position.
In the prior art, the magnetic field of vibrating motor is more weak and uneven, and the magnetic field that magnet produces mostly cannot with coil generation effect.And linear vibration motor of the present utility model is by the first magnet and second magnet relative with the magnetic gap between the first magnet that magnetic is arranged of being respectively provided on two sides with at coil, make the uniform magnetic field between magnet to greatest extent by described coil, significantly improve the utilization rate in magnetic field, improve the vibrating effect of vibrating motor.
Specifically, in specific embodiment of the utility model, as shown in Figure 1, 2, the first of described oscillating mass block 2 sets and is provided with three piece of first magnet 31 in magnetic portion 22, Fig. 2 is oppositely arranged for N pole between left side and the first magnet 31 of centre, is oppositely arranged for S pole between right side and the first magnet 31 of centre.So, the magnetic of the magnetic gap in left side is N, and the magnetic of the magnetic gap on right side is S.The second of described oscillating mass block 2 sets the S of the second magnet 32 being provided with in two piece of second magnet 32, Fig. 2 left side in magnetic portion 23 extremely just magnetic gap to left side, the N of second magnet 32 on right side extremely just magnetic gap to right side.So, the uniform magnetic field that intensity is higher can just be formed between magnetic gap and the second magnet 32.
Especially, as shown in Figure 1,3, in a kind of embodiment of the present utility model, described linear vibration motor includes support 41, described support 41 is fixedly installed on the inside of described housing, and a part for described support 41 is through the coil groove 21 of described oscillating mass block 2, and described coil 4 can be arranged in the part being arranged in described coil groove 21 of described support 41.Described support 41 does not contact with oscillating mass block 2 with coil 4, will not hinder the linear oscillator of oscillating mass block 2.In other embodiments of the present utility model, those skilled in the art can also adopt alternate manner, and described coil 4 is arranged on described coil groove 21 place, for instance, it is possible to online ring recess 21 both sides arrange supporting leg, and coil is fixed on the position of coil groove 21.This utility model does not limit how coil being arranged on coil groove place.It addition, described coil groove can through described oscillating mass block, in oscillating mass block, only form groove-like structure be used for holding coil groove.
Preferably, as it is shown in figure 1, described coil 4 can be similar to the structure surrounding rectangle frame, described coil 4 has two pairs of parallel straight edges.Wherein it is possible to make two longer straight flanges relative with the magnetic pole of described second magnet 32 respectively, i.e. in the uniform magnetic field between magnetic gap and the second magnet 32 of two long edge positions.So, when described coil 4 passes into alternating current, higher electromagnetic induction between the first Magnet and the second Magnet and coil 4, can be produced, effectively drive described oscillating mass block 2 to vibrate, strengthen vibrating effect.
Especially, can being disposed with four piece of first magnet and three piece of second magnet, altogether form three magnetic gap between the first magnet in described linear vibration motor, the magnetic pole of three piece of second magnet is respectively just to three magnetic gap.Also including two coils in linear vibration motor, when described coil is rectangle frame, effect is more excellent.Two coils are disposed side by side in described coil groove, and two coils can just be pointed to the magnetic gap of both sides respectively along two limits in the outside in direction side by side, and mutually neighbour two limits of two coils together can just be pointed to the magnetic gap of centre.In such an embodiment, the electromagnetic induction produced between coil and magnet is higher, it is possible to produce higher driving force trend oscillating mass block vibration.If the quality of oscillating mass block is relatively big, or the requirement of strength of vibrating effect is higher, and those skilled in the art can adopt the embodiment increasing coil, magnet.
Alternatively, as shown in Fig. 1,3,4, in embodiment of the present utility model, described elastic device can include two and support shell fragment 5, described support shell fragment 5 is separately positioned on the described oscillating mass block 2 both sides along linear direction of vibration, and described support shell fragment 5 is fixing with the inside of described housing to be connected.Elastic force can be produced during described support shell fragment 5 deformation, when oscillating mass block 2 under the driving of coil 4 and magnet to a side shifting time, side support shell fragment 5 be squeezed produce opposing elastic force, opposite side support shell fragment 5 be stretched produce opposing pulling force.Described support shell fragment 5 can order about oscillating mass block 2 and return to initial equilbrium position.And so forth, oscillating mass block 2 is under the effect of magnet and coil 4 and elastic device, it is possible to produce reciprocal linear oscillator.Especially, the other end of described support shell fragment 5 connects respectively at the inwall of housing, provides for described oscillating mass block 2 and supports the supporting role being perpendicular to linear oscillator direction, makes oscillating mass block 2 can be suspended from the inside of described housing.
This utility model is not limiting as the concrete form of described elastic device, such as, in other embodiments, described elastic device can include two springs, described spring is separately positioned on the described oscillating mass block both sides along linear direction of vibration, and spring is fixing with the inside of described housing to be connected.Spring is equally possible plays the effect providing resilience force, but owing to spring is flexible, it is provided that volume support effect is poor.So, described linear vibration motor can also include providing the support component supported for described oscillating mass block.Described support component can be slide rail, support column etc. with ball, and described support component provides the support being perpendicular to linear oscillator direction for oscillating mass block.
Additionally, this utility model is not limiting as described coil groove orientation in oscillating mass block, such as, as shown in Figure 1, described coil groove 21 can be horizontally installed on described coil groove 21 and be horizontally installed in the middle part of described oscillating mass block 2, and described first sets magnetic portion 22 and second sets magnetic portion 23 and lay respectively at the both sides up and down of described coil groove 21.In other embodiments, described coil groove 21 can also be disposed longitudinally on described coil groove 21 and be horizontally installed in the middle part of described oscillating mass block 2, and described first sets magnetic portion 22 and second sets magnetic portion 23 and lay respectively at the both sides, front and back of described coil groove 21.
More preferably, in order to optimize the magnetic field that described first magnet 31 and the second magnet 32 produce further, described first sets magnetic portion 22 and/or second sets and can be provided with washer 6 on the outer surface in magnetic portion 23.As Figure 1-4, it is respectively arranged with washer 6 in the upper and lower surface of described oscillating mass block 2.Described washer 6 can restrain the magnetic field that magnet produces further.
Alternatively, as it is shown in figure 1, described housing can include base plate 12 and upper casing 11, described upper casing 11 is fastened on described base plate 12 and is formed holds chamber, and oscillating mass block 2, elastic device etc. are arranged in described accommodation chamber.As it is shown in figure 1, described linear vibration motor can also include circuit board 7, described circuit board 7 electrically connects with described coil 4, for collecting the signal in the external world, and carries alternating current to described coil 4.
Although specific embodiments more of the present utility model being described in detail already by example, but it should be appreciated by those skilled in the art, above example is merely to illustrate, rather than in order to limit scope of the present utility model.It should be appreciated by those skilled in the art, when without departing from scope and spirit of the present utility model, above example can be modified.Scope of the present utility model is defined by the following claims.
Claims (10)
1. a linear vibration motor, it is characterised in that including:
Housing；
Oscillating mass block (2), described oscillating mass block (2) is configured to carry out linear oscillator in described housing, described oscillating mass block (2) has coil groove (21), oscillating mass block (2) is divided into first to set magnetic portion (22) and second setting magnetic portion (23) by described coil groove (21), set in magnetic portion (22) described first, three piece of first magnet (31) at least it is sequentially arranged at intervals with along linear direction of vibration, like pole between described first magnet (31) is oppositely arranged, described second sets in magnetic portion (23) at least provided with two piece of second magnet (32), the magnetic pole of described second magnet (32) is respectively just to the magnetic gap between described first magnet (31), described second magnet (32) is just contrary with the magnetic at described magnetic gap place to the magnetic pole of described magnetic gap；
Being fixedly installed on the coil (4) in described housing, described coil (4) is arranged in described coil groove (21)；
Being fixedly installed on the elastic device in described housing, described elastic device is configured to described oscillating mass block (2) and provides resilience force.
2. linear vibration motor according to claim 1, it is characterized in that, described linear vibration motor includes support (41), described support (41) is fixedly installed in described housing and through described coil groove (21), described coil (4) is arranged on described support (41) and is arranged in the part of described coil groove (21).
3. linear vibration motor according to claim 1, it is characterised in that described coil (4) surrounds rectangle frame, two long limits of described coil (4) are corresponding with the position of magnetic pole of described second magnet (32) respectively.
4. linear vibration motor according to claim 3, it is characterized in that, described first sets and is provided with four piece of first magnet (31) in magnetic portion (22), described second sets and is provided with three piece of second magnet (32) in magnetic portion (23), and described linear vibration motor includes two coils being arranged side by side (4).
5. linear vibration motor according to claim 1, it is characterized in that, described elastic device includes two and supports shell fragment (5), described support shell fragment (5) is separately positioned on the described oscillating mass block (2) both sides along linear direction of vibration, and described support shell fragment (5) is fixing with the inside of described housing to be connected.
6. linear vibration motor according to claim 1, it is characterized in that, described elastic device includes two springs, described spring is separately positioned on the described oscillating mass block (2) both sides along linear direction of vibration, described spring is fixing with the inside of described housing to be connected, and described linear vibration motor includes providing the support component supported for described oscillating mass block (2).
7. linear vibration motor according to claim 1, it is characterized in that, described coil groove (21) is horizontally installed on described oscillating mass block (2) middle part, and described first sets magnetic portion (22) and second sets magnetic portion (23) and lay respectively at the both sides up and down of described coil groove (21).
8. linear vibration motor according to claim 1, it is characterised in that described first sets magnetic portion (22) and/or second sets and be provided with washer (6) on the outer surface of magnetic portion (23).
9. linear vibration motor according to claim 1, it is characterised in that described housing includes base plate (12) and upper casing (11), described upper casing (11) is fastened on upper formation of described base plate (12) and holds chamber.
10. linear vibration motor according to claim 1, it is characterised in that described linear vibration motor includes circuit board (7), and described circuit board (7) electrically connects with described coil (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095850.9U CN205385397U (en) | 2016-01-29 | 2016-01-29 | Linear vibrating motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620095850.9U CN205385397U (en) | 2016-01-29 | 2016-01-29 | Linear vibrating motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205385397U true CN205385397U (en) | 2016-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620095850.9U Expired - Fee Related CN205385397U (en) | 2016-01-29 | 2016-01-29 | Linear vibrating motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN205385397U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357080A (en) * | 2016-09-30 | 2017-01-25 | 歌尔股份有限公司 | Linear vibration motor |
| CN106787583A (en) * | 2016-12-21 | 2017-05-31 | 歌尔股份有限公司 | Linear vibration motor |
| CN112600380A (en) * | 2020-12-21 | 2021-04-02 | 天津富禄通信技术有限公司 | Stable vibration device |
-
2016
- 2016-01-29 CN CN201620095850.9U patent/CN205385397U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106357080A (en) * | 2016-09-30 | 2017-01-25 | 歌尔股份有限公司 | Linear vibration motor |
| CN106787583A (en) * | 2016-12-21 | 2017-05-31 | 歌尔股份有限公司 | Linear vibration motor |
| CN106787583B (en) * | 2016-12-21 | 2023-09-08 | 歌尔股份有限公司 | Linear vibration motor |
| CN112600380A (en) * | 2020-12-21 | 2021-04-02 | 天津富禄通信技术有限公司 | Stable vibration device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee after: Goertek Inc. Address before: 261031 Dongfang Road, Weifang high tech Development Zone, Shandong, China, No. 268 Patentee before: Goertek Inc. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 Termination date: 20200129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |