CN206908498U - Electromagnetic driver - Google Patents
Electromagnetic driver Download PDFInfo
- Publication number
- CN206908498U CN206908498U CN201720559914.0U CN201720559914U CN206908498U CN 206908498 U CN206908498 U CN 206908498U CN 201720559914 U CN201720559914 U CN 201720559914U CN 206908498 U CN206908498 U CN 206908498U
- Authority
- CN
- China
- Prior art keywords
- vibrator component
- electromagnetic driver
- coil
- permanent magnet
- fixed part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of electromagnetic driver.The electromagnetic driver includes：Stator module, stator module include coil and fixed part, and coil is connected with fixed part；Vibrator component, vibrator component include permanent magnet, and coil is located in the magnetic field of permanent magnet；And flexible member, vibrator component is suspended on fixed part by flexible member, and vibrator component is on fixed part, one end of flexible member is connected with fixed part, fixed part is provided with through hole or escape groove, in vibration, flexible member can be embedded in through hole or escape groove, and the other end of flexible member is connected with vibrator component.The electromagnetic driver has the characteristics of small volume, vibrating effect is good.
Description
Technical field
Vibrating device technical field is the utility model is related to, more particularly, to a kind of electromagnetic driver.
Background technology
With the development of the communication technology, portable type electronic product, such as mobile phone, handheld device or palm multimedia recreation
Equipment etc. enters the life of people.In these portable type electronic products, typically system feedback can be done with vibrating motor.
For example, vibrational feedback of the incoming call prompting of mobile phone, game machine etc..However, with the lightening development trend of electronic product, in it
The various components (including vibrating motor) in portion also need to adapt to this trend.
In the prior art, Z-direction vibrating motor typically all includes vibrator component, shell fragment and the stator pack being contained in housing
Part.In general, vibrator component includes mass, magnet, and stator module includes coil, FPCB.Oscillator system passes through bullet
Piece is suspended in housing.
Because housing takes a part of space, the vibrator component volume being contained in housing is limited, therefore forms oscillator group
The mass volume of part is also restricted with magnet volume, and vibrating motor can not obtain high seismaesthesia and large driving force.
Utility model content
A purpose of the present utility model is to provide a kind of new solution of electromagnetic driver.
According to first aspect of the present utility model, there is provided a kind of electromagnetic driver.The electromagnetic driver includes：Stator pack
Part, the stator module include coil and fixed part, and the coil is connected with the fixed part；Vibrator component, the oscillator group
Part includes permanent magnet, and the coil is located in the magnetic field of the permanent magnet；And flexible member, the vibrator component pass through described
Flexible member is suspended on the fixed part, and the vibrator component is exposed on the fixed part, the flexible member
One end is connected with the fixed part, and the fixed part is provided with through hole or escape groove, in vibration, the flexible member energy
Enough it is embedded in the through hole or escape groove, the other end of the flexible member is connected with the vibrator component.
Alternatively, the coil is axially perpendicular to direction of vibration, and the magnetizing direction of the permanent magnet is parallel to vibration side
To the permanent magnet is located at the sidepiece vertically of the coil.
Alternatively, the vibrator component includes 2 permanent magnets, and 2 permanent magnets are symmetrically disposed in the line
The both sides vertically of circle, the magnetizing direction of two permanent magnets are opposite.
Alternatively, the fixed part is lower casing, and the lower casing is laminated structure, and the flexible member is shell fragment, the bullet
Piece is integrally formed with the lower casing.
Alternatively, the shell fragment is multiple.
Alternatively, there is retaining wall along two end sets of long axis direction in the lower casing, be provided with the retaining wall
To the salient point extended close to the direction of the vibrator component, the salient point and the vibrator component are separately.
Alternatively, the vibrator component also includes counterweight part, and the counterweight part is connected with the permanent magnet, the counterweight part
Positioned at the top along direction of vibration of the permanent magnet；In initial position, in the middle part of the permanent magnet and the coil
Portion is relative.
Alternatively, the vibrator component also includes upper casing, and the upper casing is made by metal material, the counterweight part and
The permanent magnet is arranged in the upper casing, and the other end and the upper casing of the flexible member weld.
Alternatively, enclosed by the upper casing and form the first accommodating chamber, the second accommodating chamber and between two accommodating chambers
Avoiding space, and the avoiding space penetrates with first accommodating chamber and second accommodating chamber, and the coil inserts institute
State in avoiding space；One in 2 permanent magnets is arranged in the first accommodating chamber, and another is arranged on the second receiving
In chamber, and one in 2 counterweight parts is arranged in the first accommodating chamber, and another is arranged on the second accommodating chamber
In.
Alternatively, the upper casing is made by permeability magnetic material.
Inventor of the present utility model has found, conventionally, as the space that housing occupies electromagnetic driver causes
The vibrator component volume being contained in housing is limited, therefore mass volume is also restricted with magnet volume, vibrating motor
High seismaesthesia and large driving force can not be obtained.Therefore, the technical assignment or technology to be solved that the utility model to be realized
Problem be it is that those skilled in the art never expect or it is not expected that, therefore the utility model is a kind of new technical side
Case.
In the utility model embodiment, vibrator component is not provided with housing on fixed part outside vibrator component.
So, the thickness of electromagnetic driver is reduced, has complied with the development trend that electronic equipment is lightening, minimizes.
In addition, the electromagnetic driver does not have to set housing, raw material are saved.
In addition, in vibration, the flexible member of the electromagnetic driver can be embedded in through hole or the escape groove of fixed part.It is logical
This mode is crossed, saves the oscillation space of vibrator component, and further reduces the thickness of electromagnetic driver.
In addition, the space of saving can be used for the volume for increasing permanent magnet by user, oscillator vibration can be so improved
Driving force.
It is of the present utility model other by referring to the drawings to the detailed description of exemplary embodiment of the present utility model
Feature and its advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiment of the present utility model, and
And it is used to explain principle of the present utility model together with its explanation.
Fig. 1 is the exploded view according to the electromagnetic driver of the utility model one embodiment.
Fig. 2 is the sectional view along long axis direction according to the electromagnetic driver of the utility model one embodiment.
Fig. 3 is the sectional view along short-axis direction according to the electromagnetic driver of the utility model one embodiment.
Fig. 4 is the structural representation according to the lower casing of the utility model one embodiment.
Fig. 5 is the structural representation according to the upper casing of the utility model one embodiment.
Fig. 6 is the sectional view along short-axis direction according to the upper casing of the utility model one embodiment.
Description of reference numerals：
11：Upper casing；12：Roof；13：Side wall；14：Bottom wall；15：Avoid holes；16：Counterweight part；17：Permanent magnet；18：Line
Circle；19：Iron core；20：FPCB；21：First accommodating chamber；22：Second accommodating chamber；23：Avoiding space；24：Retaining wall；25：Salient point；
26：Shell fragment；27：Lower casing；28：Connection end；29：Escape groove.
Embodiment
Various exemplary embodiments of the present utility model are described in detail now with reference to accompanying drawing.It should be noted that：It is unless another
Illustrate outside, the part and the positioned opposite of step, numerical expression and numerical value otherwise illustrated in these embodiments is unlimited
The scope of the utility model processed.
The description only actually at least one exemplary embodiment is illustrative to be never used as to this practicality below
New and its application or any restrictions used.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
Fig. 1 is the exploded view according to the electromagnetic driver of the utility model one embodiment.Fig. 2 is according to the utility model
The sectional view along long axis direction of the electromagnetic driver of one embodiment.Fig. 3 is the electricity according to the utility model one embodiment
The sectional view along short-axis direction of magnetic driven device.
According to one embodiment of the present utility model, there is provided a kind of electromagnetic driver.For example, electromagnetic driver is used for hand
In the electronic equipments such as machine, tablet personal computer, intelligent watch, VR products, AR products, intercom, game machine.
As Figure 1-3, the electromagnetic driver includes：Stator module, vibrator component and flexible member.Stator module includes
Coil 18 and fixed part.Coil 18 is connected with fixed part.For example, coil 18 is adhered to by fixed part using binding agent.Coil 18
Electrically connected with external circuit.For example, being electrically connected by FPCB20 with external circuit, this make it that the transmission of vibration signal is more accurate.
Can also be that the lead of coil 18 directly electrically connects with external circuit.
Preferably, iron core 19 is additionally provided with coil 18.Coil 18 is set around iron core 19, and iron core 19 is by magnetic conduction material
Material is made.Iron core 19 can close the magnetic induction line of permanent magnet 17, prevent that magnetic field is excessive, so as to improve the magnetic strength of permanent magnet 17
Intensity.
Fixed part, which is used to form vibrator component, to be supported, and is set for the vibration of electromagnetic driver to be delivered into outside
It is standby.
Vibrator component includes permanent magnet 17.Coil 18 is located in the magnetic field of permanent magnet 17.Permanent magnet 17 is used to provide magnetic field.
Optionally, permanent magnet 17 is ferrite lattice or ndfeb magnet.The coil 18 of energization is in magnetic field by Ampere force
Effect.And permanent magnet 17 can be acted on by the reaction force of the Ampere force from coil 18.Ampere force is vibrator component vibration
Driving force.
Vibrator component is suspended on fixed part by flexible member.And vibrator component is on fixed part.Elastic member
One end of part is connected with fixed part.Fixed part is provided with through hole or escape groove 29.In vibration, flexible member can be embedded in
In through hole or escape groove 29.For example, escape groove 29 is the groove along the thickness direction of fixed part or the extension side along fixed part
To groove.
The other end of flexible member is connected with vibrator component.For example, the modes such as bonding, welding are used by the another of flexible member
One end is connected with vibrator component.
Exposure refers to that housing is not provided with outside vibrator component, and user can be from external observation to vibrator component.Using
When, electromagnetic driver is set in electronic equipment by fixed part, is vibrated by fixed part transmission.Flexible member is configured to
For providing elastic-restoring force for vibrator component.For example, flexible member is included in spring, shell fragment 26 or elastic rubber extremely
Few one kind.
Preferably, as shown in figure 1, fixed part is lower casing 27.Lower casing 27 is laminated structure.Flexible member is shell fragment 26.
Shell fragment 26 is integrally formed with lower casing 27.For example, fixed part uses metal sheet, lower casing 27 is stamped out by way of punching press
With shell fragment 26.The connection end 28 of shell fragment 26 and lower casing Nature Link.In this way, the processing of lower casing 27 and shell fragment 26 and company
Connecing becomes easy, and the bonding strength of the two is high.
In addition, shell fragment 26 has the characteristics of frivolous, to be easily worked.
In addition, in vibration, shell fragment 26 can be completely embedded into fixed part, further save oscillation space.
In the utility model embodiment, vibrator component is not provided with housing on fixed part outside vibrator component.
So, the thickness of electromagnetic driver is reduced, has complied with the development trend that electronic equipment is lightening, minimizes.
In addition, the electromagnetic driver does not have to set housing, raw material are saved.
In addition, in vibration, the flexible member of the electromagnetic driver can be embedded in through hole or the escape groove 29 of fixed part.
In this way, the oscillation space of vibrator component is saved, and further reduces the thickness of electromagnetic driver.
In addition, the space of saving can be used for the volume for increasing permanent magnet 17 by user, oscillator vibration can be so improved
Driving force.
In one example, coil 18 is axially perpendicular to direction of vibration.The magnetizing direction of permanent magnet 17 is parallel to vibration
Direction.Permanent magnet 17 is located at the sidepiece vertically of coil 18.Direction of vibration is the direction of vibrator component vibration, such as A arrows in Fig. 1
Shown in head.Axially as shown in C arrows in Fig. 1.
For example, as shown in figure 1, fixed part is perpendicular to direction of vibration.Coil 18 along long axis direction (long axis direction such as Fig. 1
Shown in middle B arrows) side be connected with fixed part.Permanent magnet 17 is parallel with coil 18, and positioned at the side vertically of coil 18
Portion.It is horizontally set on relative to by coil 18 on fixed part, this setup reduces the space shared by the thickness of coil 18,
So as to reduce the thickness of electromagnetic driver.
Preferably, as shown in figure 1, vibrator component includes 2 permanent magnets 17.2 permanent magnets 17 are symmetrically arranged online
The axial both sides of circle 18.And the magnetizing direction of two permanent magnets 17 is opposite.In this way, in vibration, two forever
Magnet 17 is acted on by the reaction force from coil 18, and the direction of two active forces is identical, so as to improve electricity
The driving force of magnetic driven device.
Further, since driving force improves, therefore the vibratory response time of electromagnetic driver shortens, and vibration sensitivity improves.
Further, since two permanent magnets 17 are located at the both sides of coil 18 respectively, therefore the driving force that vibrator component is subject to is more equal
Weighing apparatus, this causes the stability of vibration of electromagnetic driver and reliability to improve.
Preferably, shell fragment 26 is multiple.Higher elastic-restoring force can be so provided.For example, as shown in figs. 1 and 4,
4 shell fragments 26 are set on lower casing 27.Corresponding each permanent magnet 17 sets 2 shell fragments 26.2 shell fragments 26 are along long axis direction cloth
Put, so that the vibration of vibrator component is more stable.Optionally, shell fragment 26 is formed by the mode of punching press or by shell fragment 26
It is welded on lower casing 27.
Preferably, as shown in Figures 2 and 4, there is retaining wall 24 along two end sets of long axis direction in lower casing 27.Keeping off
The salient point 25 for setting the direction of oriented close vibrator component to extend on wall 24.Salient point 25 and vibrator component are separately.The energy of retaining wall 24
Enough limit the free degree of the vibrator component along long axis direction.Retaining wall 24 can form resistance to movement of the vibrator component along long axis direction
Gear.For example, when electromagnetic driver falls, retaining wall 24 can prevent vibrator component from coming off.
Salient point 25 is provided with retaining wall 24.The distance between salient point 25 and vibrator component than retaining wall 24 and vibrator component it
Between distance it is smaller.In such manner, it is possible to further limit the free degree of the vibrator component along long axis direction, vibrator component is reduced to convex
The impact of point, improve the reliability of electromagnetic driver.
In one example, as shown in figs. 1 and 3, vibrator component also includes counterweight part 16.Counterweight part 16 connects with permanent magnet 17
Connect.Counterweight part 16 is used for the inertia for increasing vibrator component vibration.For example, counterweight part 16 is made by wolfram steel, pass through binding agent
Counterweight part 16 and permanent magnet 17 are connected.Counterweight part 16 can reduce the F of electromagnetic drivero(lowest vibration frequency).
In this example embodiment, counterweight part 16 is located at the top along direction of vibration of permanent magnet 17.Permanent magnet 17 is close to fixed part.
What so size of the permanent magnet 17 along direction of vibration can be done is bigger, can so improve the driving force of oscillator vibration.Initial
During position, the middle part of permanent magnet 17 is relative with the middle part of coil 18.So, in vibrator component starting of oscillation, the driving force being subject to is most
Greatly.
Preferably, vibrator component also includes upper casing 11.Upper casing 11 is made by metal material.Counterweight part 16 and permanent magnetism
Body 17 is arranged in upper casing 11.It should be noted that upper casing 11 is not connected to lower casing 27.Upper casing 11 is used to form receiving space
To accommodate counterweight part 16 and permanent magnet 17.
Shell fragment 26 is usually metal material.Because the solderability of permanent magnet 17 is poor, thus shell fragment 26 generally with counterweight part 16
(tungsten steel block) welds.Therefore, the position of shell fragment 26 is influenceed by the set location of counterweight part 16.
In this example embodiment, shell fragment 26 is welded to connect with upper casing 11, and this causes the connection of shell fragment 26 and vibrator component to become to hold
Easily.
In addition, the set location of shell fragment 26 is not limited by counterweight part 16.
Further, as shown in Fig. 3,5 and 6, enclosed by upper casing 11 and form the first accommodating chamber 21, the second accommodating chamber 22 and position
Avoiding space 23 between two accommodating chambers.First accommodating chamber 21, the accommodating chamber 22 of avoiding space 23 and second are along short-axis direction
It is arranged in juxtaposition.For example, the axial direction of short-axis direction and coil is consistent, as shown in C arrows in Fig. 1.Two accommodating chambers are used to accommodate forever
Magnet 17 and counterweight part 16.Avoiding space 23 penetrates with the first accommodating chamber 21 and the second accommodating chamber 22, to allow permanent magnet 17
Magnetic induction line passes through.In assembling, coil 18 is inserted in avoiding space 23.One in 2 permanent magnets 17 is arranged on
In one accommodating chamber 21, another is arranged in the second accommodating chamber 22；And one in 2 counterweight parts 16 is arranged on
In first accommodating chamber 21, another is arranged in the second accommodating chamber 22.In this way, the integrated of vibrator component is improved
Degree.
In addition, the stability of vibration of vibrator component is higher.
Preferably, the roof 12 of upper casing 11 is bonded with the top of counterweight part 16.The side wall 13 of upper casing 11 and counterweight part 16
It is bonded with the sidepiece of permanent magnet 17.The bottom wall 14 of upper casing 11 is bonded with the bottom of permanent magnet 17.In the roof 12 of upper casing 11
Portion is additionally provided with the avoid holes 15 for avoiding coil 18.Flexible member is connected with the bottom wall 14 of upper casing 11.In this way,
Upper casing 11 wraps up counterweight part 16 and the entirety of permanent magnet 17, can so make the integrated level of vibrator component higher.
In addition, in vibration, coil 18 can pass through avoid holes 15, so can further save oscillation space, make electromagnetism
The volume of driver is smaller.
Further, upper casing 11 is made by permeability magnetic material.Permeability magnetic material is easily magnetized in magnetic field.For example, lead
Magnetic material optionally pure iron, silicon steel, permalloy, SPCC etc..In this way, permanent magnet can be gathered and be closed to housing
17 magnetic induction line, leakage field is reduced, so that the magnetic induction at coil 18 is stronger.
Because magnetic induction improves, therefore the driving force of electromagnetic driver and vibration sensitivity are improved.
Although some specific embodiments of the present utility model are described in detail by example, this area
It is to be understood by the skilled artisans that example above merely to illustrate, rather than in order to limit the scope of the utility model.This
Field it is to be understood by the skilled artisans that can not depart from the scope of the utility model and spirit in the case of, to above example
Modify.The scope of the utility model is defined by the following claims.
Claims (10)
- A kind of 1. electromagnetic driver, it is characterised in that：Including：Stator module, the stator module include coil (18) and fixed part, and the coil (18) is connected with the fixed part；Vibrator component, the vibrator component include permanent magnet (17), and the coil (18) is located at the magnetic field of the permanent magnet (17) In；AndFlexible member, the vibrator component are suspended on the fixed part by the flexible member, and the vibrator component On the fixed part, one end of the flexible member is connected with the fixed part, and the fixed part is provided with through hole Or escape groove (29), in vibration, the flexible member can be embedded in the through hole or escape groove (29), the elasticity The other end of element is connected with the vibrator component.
- 2. electromagnetic driver according to claim 1, it is characterised in that：The coil (18) is axially perpendicular to vibration side To the magnetizing direction of the permanent magnet (17) is located at the edge of the coil (18) parallel to direction of vibration, the permanent magnet (17) The sidepiece of axial direction.
- 3. electromagnetic driver according to claim 2, it is characterised in that：The vibrator component includes 2 permanent magnets (17), 2 permanent magnets (17) are symmetrically disposed in the both sides vertically of the coil (18), two permanent magnets (17) magnetizing direction is opposite.
- 4. according to the electromagnetic driver described in claim 1 or 3, it is characterised in that：The fixed part is lower casing (27), described Lower casing (27) is laminated structure, and the flexible member is shell fragment (26), the shell fragment (26) and the lower casing (27) be one into Type.
- 5. electromagnetic driver according to claim 4, it is characterised in that：The shell fragment (26) is multiple.
- 6. electromagnetic driver according to claim 4, it is characterised in that：In the lower casing (27) along the two of long axis direction Individual end set has retaining wall (24), the salient point for setting the direction of the oriented close vibrator component to extend on the retaining wall (24) (25), the salient point (25) and the vibrator component be separately.
- 7. electromagnetic driver according to claim 3, it is characterised in that：The vibrator component also includes counterweight part (16), The counterweight part (16) is connected with the permanent magnet (17), and the counterweight part (16) is located at the edge vibration side of the permanent magnet (17) To top；In initial position, the middle part of the permanent magnet (17) is relative with the middle part of the coil (18).
- 8. electromagnetic driver according to claim 7, it is characterised in that：The vibrator component also includes upper casing (11), institute State upper casing (11) to be made by metal material, the counterweight part (16) and the permanent magnet (17) are arranged on the upper casing (11) in, the other end and the upper casing (11) of the flexible member weld.
- 9. electromagnetic driver according to claim 8, it is characterised in that：Enclosed by the upper casing (11) and form the first receiving Chamber (21), the second accommodating chamber (22) and the avoiding space (23) between two accommodating chambers, and the avoiding space (23) Penetrated with first accommodating chamber (21) and second accommodating chamber (22), the coil (18) inserts the avoiding space (23) In；One in 2 permanent magnets (17) is arranged in the first accommodating chamber (21), and another is arranged on the second accommodating chamber (22) in, and one in 2 counterweight parts (16) is arranged in the first accommodating chamber (21), and another is arranged on In two accommodating chambers (22).
- 10. according to the electromagnetic driver described in claim 8 or 9, it is characterised in that：The upper casing (11) is by permeability magnetic material system Form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559914.0U CN206908498U (en) | 2017-05-18 | 2017-05-18 | Electromagnetic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720559914.0U CN206908498U (en) | 2017-05-18 | 2017-05-18 | Electromagnetic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908498U true CN206908498U (en) | 2018-01-19 |
Family
ID=61288797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720559914.0U Withdrawn - After Issue CN206908498U (en) | 2017-05-18 | 2017-05-18 | Electromagnetic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206908498U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425691A (en) * | 2017-05-18 | 2017-12-01 | 歌尔股份有限公司 | Electromagnetic driver |
| CN109040917A (en) * | 2018-07-02 | 2018-12-18 | 歌尔股份有限公司 | Driver and screen sounding device |
-
2017
- 2017-05-18 CN CN201720559914.0U patent/CN206908498U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425691A (en) * | 2017-05-18 | 2017-12-01 | 歌尔股份有限公司 | Electromagnetic driver |
| CN107425691B (en) * | 2017-05-18 | 2023-08-04 | 歌尔股份有限公司 | Electromagnetic driver |
| CN109040917A (en) * | 2018-07-02 | 2018-12-18 | 歌尔股份有限公司 | Driver and screen sounding device |
| CN109040917B (en) * | 2018-07-02 | 2021-10-08 | 歌尔股份有限公司 | Exciter and screen sounding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230804 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180119 Effective date of abandoning: 20230804 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |