CN207853724U - Linear vibration motor - Google Patents
Linear vibration motor Download PDFInfo
- Publication number
- CN207853724U CN207853724U CN201721724515.1U CN201721724515U CN207853724U CN 207853724 U CN207853724 U CN 207853724U CN 201721724515 U CN201721724515 U CN 201721724515U CN 207853724 U CN207853724 U CN 207853724U
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- shell
- coil
- vibration motor
- magnet
- linear vibration
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- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model discloses a kind of linear vibration motor, including forms the shell of receiving space, by vibrator component that the elastic supporting member for supporting optical member being respectively fixedly disposed on two relative inner walls of shell is suspended in receiving space and stator module in vibrator component both sides is arranged；Vibrator component includes that the first mass block, the second mass block, two agllutinations close and are fixed on first mass block and connecting plate in the second mass block two lateral walls and an at least agllutination closes the magnet being fixed between two pieces of connecting plates, and the magnetizing direction of magnet is parallel to the direction of vibration of the linear vibration motor；Stator module includes being arranged above magnet and the first coil of lower section and the second coil and the flexible PCB for being connected to first coil and the second coil and being connected to external circuit.Since connecting plate may be configured as sheet type structure, it is possible to increase the length of the magnet between two pieces of connecting plates is arranged, increases effective length of the coil in magnetic field and increase the driving force provided to vibrator component to increase the Ampere force of coil generation.
Description
Technical field
The utility model is related to motor technologies fields.More particularly, to a kind of linear vibration motor.
Background technology
With the development of the communication technology, portable electronic product, such as mobile phone, handheld device or palm multimedia recreation
Equipment etc. enters people’s lives.In these portable electronic products, generally system feedback can be done with vibrating motor,
Such as the vibrational feedback etc. of the incoming call prompting of mobile phone, game machine.With the fast development of consumption electronic product, increasingly require to shake
Dynamic motor has higher vibration sense, faster landing time, the frequency bandwidth of bigger.
Existing linear vibration motor, the oscillator system and stator system for generally including shell and being contained in shell,
Oscillator system is made of mass block, permanent magnet, shrapnel, and stator system is usually made of FPCB and coil, is driven by stator system
Dynamic oscillator system vibrates and drives the vibration of motor entirety, transmits seismaesthesia outward.Current most linear vibration motor is logical
The reaction force for crossing the Ampere force that coil is subject to comes that drive vibrator system is of reciprocating vibration, but is limited to the spatial volume of coil,
The number of turns and effective length of coil are limited, and the Ampere force is usually smaller, this is to cause existing motor longer there are the response time
Major reason.
Accordingly, it is desirable to provide a kind of can increase the motor configuration for being supplied to oscillator system driving force.
Utility model content
The purpose of this utility model is to provide a kind of linear vibration motor, which provides to vibrator component
Larger driving force, to realize broadband and quick response.
One side according to the present utility model provides a kind of linear vibration motor, including forms the shell of receiving space
Body is suspended in the receiving sky by the elastic supporting member for supporting optical member being respectively fixedly disposed on two relative inner walls of the shell
In vibrator component and stator module in the vibrator component both sides is set；
The vibrator component include the first mass block, the second mass block, two agllutinations conjunction be fixed on first mass block with
Connecting plate and an at least agllutination in second mass block two lateral walls close the magnet being fixed between two pieces of connecting plates, institute
The magnetizing direction for stating magnet is parallel to the direction of vibration of the linear vibration motor；
The stator module includes that first coil above the magnet with lower section and the second coil is arranged and is connected to
The first coil and the second coil and the flexible PCB being connected to external circuit.
Preferably, the shell includes the first shell for complementing each other to form receiving space, second shell and third shell；
The wherein described first shell and third shell are platy structure, the second shell be by four face closures that are bent to form,
There is the cavity body structure of opening, the first shell to seal with third shell and be opened at the top of second shell respectively for top and bottom
At mouthful and at bottom opening.
Preferably, the flexible PCB is located at the first coil and first shell and the second coil and third shell
Between body.
Preferably, the flexible PCB ontology from hull outside along third case inside surface and second shell
Side surface extends to first shell inner surface.
Preferably, the stator module further includes the iron core that the central hole in first coil, the second coil is arranged.
Preferably, the flexible PCB offers hollow-out parts corresponding with the matching of the shape of the iron core, the iron core
In hollow-out parts and respectively in connection with being fixed on the inner surface of the first shell, third shell.
Preferably, the first coil and the second coil are the direction of winding rectangular coil parallel with horizontal plane, the length
Edge, the main driving edge of two coils is driven to extend perpendicularly to direction of vibration, institute based on the long leg of square coil
It states the top of second shell and bottom end and offers notch for placing the rectangular coil short leg respectively.
Preferably, the shape of the iron core is rectangle.
Preferably, the vibrator component includes the magnet for combining the magnetizing direction being fixed between two pieces of connecting plates opposite,
The upper and lower both sides of every block of magnet are equipped with coil.
Preferably, the vibrator component further includes the third mass block being arranged between two blocks of magnet.
The beneficial effects of the utility model are as follows：
The utility model is linked into an integrated entity magnet and mass block by connecting plate, since connecting plate may be configured as sheet-type
Structure it is possible to increase the length of the magnet between two pieces of connecting plates is arranged, while opening up notch and increasing line on the second housing
The length for enclosing main driving edge, increases effective length of the coil in magnetic field, to increase the Ampere force of coil generation.This practicality
It is novel so that iron core is generated magnetic pole also by the way that iron core is arranged at hub of a spool hole, by the magneticaction between iron core and magnet,
Drive vibrator component vibrates.Drive vibrator component driving force of reciprocating vibration will be equal to the reaction of Ampere force in the utility model
The sum of power and total magnetic force can effectively increase the driving force provided to vibrator component.
Description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 shows the exploded view of the utility model.
Fig. 2 shows the sectional views of the utility model.
Fig. 3 shows the utility model second shell and the assembling schematic diagram of coil.
Fig. 4 shows the partial schematic diagram of the utility model vibrator component.
Specific implementation mode
In order to illustrate more clearly of the utility model, the utility model is done into one with reference to preferred embodiments and drawings
The explanation of step.Similar component is indicated with identical reference numeral in attached drawing.It will be appreciated by those skilled in the art that below
Specifically described content is illustrative and be not restrictive, and should not limit the scope of protection of the utility model with this.
The decomposition diagram of the utility model linear vibration motor as shown in Figure 1, the linear vibration motor include shell,
Vibrator component, stator module and the elastic supporting member for supporting optical member 40 of receiving in the housing.The shell of formation receiving space in present embodiment
Body includes first shell 11, second shell 12 and third shell 13, first shell 11, second shell 12 and third shell here
13, which can also be usually said upper casing, middle shell and lower casing, the utility model, is not limited this.Present embodiment is provided
Shell structure in, first shell 11 and third shell 13 are platy structure, and second shell 12 is to pass through four be bent to form
At the top of face closure and bottom has the cavity body structure of opening；First shell 11 is separately fixed at second shell 12 with third shell 13
Top open part and bottom opening at.Relative to traditional stretching integral shell molds, the shell that present embodiment is provided
Structure, the assembly between stator module of being more convenient for, vibrator component and support component and shell, simple for process, cost is lower, and
And the shell may be used permeability magnetic material and be made, and can further improve the driving force of motor, expand motor frequency bandwidth.
The vibrator component that present embodiment is provided includes the first mass block 21, the second mass block 22, the conjunction fixation of two agllutinations
In the first mass block 21 and 22 two lateral walls upper junction plate 23 of the second mass block and between being fixed on two pieces of connecting plates 23
The magnetizing direction of magnet, magnet is parallel to the direction of vibration of motor.Due to the shape of connecting plate 23 can be made to it is thin as possible, because
This width that the magnet between two pieces of connecting plates 23 is arranged can be set as wide as possible, can increase magnetic field covering coil
Effective length improves the Ampere force of coil generation, to improve the driving force of drive vibrator component vibration.Two elasticity branch
One end of support member 40 is fixedly connected with the side wall of the first mass block 21, the second mass block respectively, the other end and second shell 12
Madial wall is fixedly connected, and so that vibrator component is suspended in the receiving space of shell by elastic supporting member for supporting optical member 40.Further, in order to
The Ampere force that drive vibrator component moves back and forth is improved, as shown in Fig. 1 and Fig. 2, present embodiment is between two pieces of connecting plates 23
It is arranged that there are two the opposite magnet of magnetizing direction, for the ease of clearly describing, with the first magnet 24 and the in present embodiment
Two magnet 25 are illustrated respectively.The magnetizing direction of first magnet 24 and the second magnet 25 is parallel to filling for direction of vibration and the two
Magnetic direction is opposite.Specifically, the first magnet 24 is arranged according to the poles the N poles-S, the second magnet 25 is arranged according to the poles the S poles-N.
Stator module includes that the first coil 31 above the first magnet 24 is arranged, is arranged below the first magnet 24
Second coil 32, the tertiary coil 33 being arranged above the second magnet 25, the 4th coil 34 being arranged below the second magnet 25,
And the flexible electrical for being connected to first coil 31, the second coil 32, tertiary coil 33 and the 4th coil 34 and being connected to external circuit
Road plate 35.First coil 31, tertiary coil 33 combine the inner surface for being fixed on first shell 11, the second line in present embodiment
The 32, the 4th coil 34 of circle, which combines, is fixed on the inner surface of third shell 13, flexible PCB 35 be located at the first coil 31,
Between tertiary coil 33 and first shell 11 and the second coil 32, the 4th coil 34 and third shell 13.When assembling motor,
Flexible PCB 35 is tiled and is synchronized and is pasted onto on the inner surface of first shell 11 and third shell 13, then in flexible electrical
Plate 33 corresponding region in road places first coil 31, the second coil 32, tertiary coil 33 and the 4th coil 34, is so just had
The stator module of four coils.First shell 11 and third shell 13 coordinate with the upper and lower ends of second shell 12 respectively to be overlapped,
Just the motor with four loop constructions is obtained.Therefore, the linear vibration motor of the utility model has simple for assembly process excellent
Point.
Further, first coil 31, the second coil 32, tertiary coil 33 and the 4th coil 34 are direction of winding and water
Plane parallel rectangular coil drives based on the long leg of the rectangular coil edge, the extending direction of main driving edge to hang down
Directly in direction of vibration, specifically, as depicted in figs. 1 and 2, main driving edge is perpendicular to paper.Four coil knots having the same
It is configured state, positioned at the first coil 31 of about 24 both sides of the first magnet and the input current direction of the second coil 32 on the contrary, being located at
Second magnet, about 25 both sides, tertiary coil 33 and the 4th coil 34 input current direction on the contrary, and first coil 31 with
The input current direction of tertiary coil 33 is also opposite.As shown in figures 1 and 3, side wall top and the bottom end difference of second shell 12
Jagged 14 are opened up, notch 14 is used to place the short leg of four coils, makes the side of the outer ledge and second shell 12 of coil
Wall flush with outer surface.Using the above structure so that the long leg of coil and second shell 12 it is of same size so that the length of coil
Edge maximizes, and the main driving edge for also allowing for coil maximizes, and under same magnetic field intensity, improves the peace of coil generation
Power is trained, the driving force of drive vibrator component vibration is further improved.
Further, distinguish in the central hole of first coil 31, the second coil 32, tertiary coil 33 and the 4th coil 34
There are four iron cores 36 for setting.As depicted in figs. 1 and 2, according to right-hand screw rule it is found that while coil is powered, iron core 36
Upper generation magnetic pole, which generates the magnetic force that can be interacted with the first magnet 24 or the second magnet 25, in the magnetic force and coil
The common drive vibrator component of Ampere force superposition of generation is reciprocating, improves the driving force of drive vibrator component vibration.
Further, the shape of iron core 36 is rectangle corresponding with the matching of the center hole shape of rectangular coil.Flexible electrical
Road plate 35 is equipped with hollow-out parts 37 corresponding with iron core 36, and iron core 36 is located in hollow-out parts 37, and four iron cores 36 respectively in connection with
Be fixed on first shell 11, third shell 13 inner surface.
Further, as shown in Figure 1 and Figure 4, it is additionally provided with third mass block 26 between the first magnet 24 and the second magnet 25,
First magnet 24 and the second magnet 25 are located at the both sides of third mass block 26, and are touched respectively with the two side of third mass block 26
It connects.It can increase the quality of vibrator component by the way that third mass block 26 is arranged, promote the seismaesthesia of motor.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model, for those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways, all embodiments can not be exhaustive here,
It is every to belong to obvious changes or variations that the technical solution of the utility model is extended out still in the utility model
The row of protection domain.
Claims (10)
1. a kind of linear vibration motor, which is characterized in that including forming the shell of receiving space, by being respectively fixedly disposed at
It states the elastic supporting member for supporting optical member on two relative inner walls of shell and is suspended in the vibrator component in the receiving space and setting
Stator module in the vibrator component both sides；
The vibrator component is fixed on first mass block and second including the first mass block, the second mass block, the conjunction of two agllutinations
Connecting plate and an at least agllutination in mass block two lateral walls close the magnet being fixed between two pieces of connecting plates, the magnetic
The magnetizing direction of iron is parallel to the direction of vibration of the linear vibration motor；
The stator module includes being separately positioned on above the magnet and the first coil of lower section and the second coil and being connected to
The first coil and the second coil and the flexible PCB being connected to external circuit.
2. linear vibration motor according to claim 1, which is characterized in that the shell includes complementing each other to form receiving
First shell, second shell and the third shell in space；The wherein described first shell and third shell are platy structure, described
Second shell is the cavity body structure for having opening by four face closures, top and the bottom that are bent to form, the first shell with
Third shell is sealed respectively at the top open part and bottom opening of second shell.
3. linear vibration motor according to claim 2, which is characterized in that the flexible PCB is located at the First Line
Between circle and first shell and the second coil and third shell.
4. linear vibration motor according to claim 3, which is characterized in that the flexible PCB ontology is from hull outside
First shell inner surface is extended to along third case inside surface and second shell inner surface.
5. linear vibration motor according to claim 3, which is characterized in that the stator module further includes being arranged first
The iron core of the central hole of coil, the second coil.
6. linear vibration motor according to claim 5, which is characterized in that the flexible PCB offers and the iron
The shape of core matches corresponding hollow-out parts, and it is interior and respectively in connection with being fixed on the first shell, that the iron core is located at hollow-out parts
On the inner surface of three shells.
7. linear vibration motor according to claim 5, which is characterized in that the first coil and the second coil are coiling
The direction rectangular coil parallel with horizontal plane drives edge, the main drive of two coils based on the long leg of the rectangular coil
Dynamic edge extends perpendicularly to direction of vibration, and the top and bottom end of the second shell are offered respectively for placing the length
The notch of square coil short leg.
8. linear vibration motor according to claim 7, which is characterized in that the shape of the iron core is rectangle.
9. linear vibration motor according to claim 1, which is characterized in that the vibrator component includes combining to be fixed on two
The opposite magnet of magnetizing direction between block connecting plate, the upper and lower both sides of every block of magnet are equipped with coil.
10. linear vibration motor according to claim 9, which is characterized in that the vibrator component further includes being arranged two
Third mass block between block magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724515.1U CN207853724U (en) | 2017-12-12 | 2017-12-12 | Linear vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721724515.1U CN207853724U (en) | 2017-12-12 | 2017-12-12 | Linear vibration motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207853724U true CN207853724U (en) | 2018-09-11 |
Family
ID=63424200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721724515.1U Active CN207853724U (en) | 2017-12-12 | 2017-12-12 | Linear vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207853724U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617356A (en) * | 2019-02-12 | 2019-04-12 | 共达电声股份有限公司 | A kind of line driver |
| CN112187004A (en) * | 2020-10-15 | 2021-01-05 | 苏州索迩电子技术有限公司 | Broadband motor |
| CN113556006A (en) * | 2021-08-05 | 2021-10-26 | 歌尔股份有限公司 | Vibration motor |
-
2017
- 2017-12-12 CN CN201721724515.1U patent/CN207853724U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109617356A (en) * | 2019-02-12 | 2019-04-12 | 共达电声股份有限公司 | A kind of line driver |
| CN109617356B (en) * | 2019-02-12 | 2024-01-23 | 共达电声股份有限公司 | Linear exciter |
| CN112187004A (en) * | 2020-10-15 | 2021-01-05 | 苏州索迩电子技术有限公司 | Broadband motor |
| CN112187004B (en) * | 2020-10-15 | 2021-08-03 | 苏州索迩电子技术有限公司 | Broadband motor |
| CN113556006A (en) * | 2021-08-05 | 2021-10-26 | 歌尔股份有限公司 | Vibration motor |
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