CN207677611U - A kind of linear vibration electric motor - Google Patents
A kind of linear vibration electric motor Download PDFInfo
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- CN207677611U CN207677611U CN201820008399.1U CN201820008399U CN207677611U CN 207677611 U CN207677611 U CN 207677611U CN 201820008399 U CN201820008399 U CN 201820008399U CN 207677611 U CN207677611 U CN 207677611U
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- spring
- yoke
- coil
- balance weight
- pedestal
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model belongs to vibrating motor technical field, discloses a kind of linear vibration electric motor, for solving the problems, such as that existing spring generates noise since high-frequency reciprocating movement deforms and contacted with balance weight.The utility model includes pedestal, circuit board is provided on pedestal, coil is connected on pedestal, the periphery of coil is arranged with spiral helicine spring, the upper surface of spring is connected with yoke, the periphery of yoke is arranged with balance weight, the interior top of yoke is connected with magnet, vertical range between the lower face of the contact surface and balance weight of spring and yoke is L1,0.05mm≤L1≤0.25mm, horizontal distance between the outer edge and the outer edge of balance weight of the coupling part of spring and yoke is L2,0.8mm≤L2≤2.4mm.Even if can prevent from contacting between spring and balance weight if the case where spring of the utility model deforms, to solve the problems, such as that existing vibrating motor contacts the collision noise occurred with balance weight due to camber of spring.
Description
Technical field
The utility model belongs to vibrating motor technical field, and in particular to a kind of linear vibration electric motor.
Background technology
With the mobile terminal devices such as the fast development of electronic product, especially mobile phone, tablet, and these electronic equipment bases
It is required for vibrating using vibrating motor on this, the especially extensive utilization of touch screen and quickly increase, small-sized (miniature) vibration
The purposes of motor also results in the concern of people, as that can feel vibrating function when user's point touching screen, when playing game
The vibrating function of electronic product can really be experienced.The vibrating motor of the intellectual products such as mobile phone, tablet is to utilize coil and magnetic
Iron generates vibration, and the primary structure of vibrating motor includes the spring part of both stator module, mover assembly and connection, wherein fixed
Sub-component includes circuit board and coil, and mover assembly includes magnet, yoke and balance weight；Specific vibrating motor includes pedestal,
Circuit board is installed on pedestal, coil is installed on circuit board, magnet is arranged in coil, the upper end of magnet is equipped with yoke,
The periphery of yoke is equipped with balance weight, and the spring for being set in coil periphery is equipped between balance weight and circuit board, after energization,
Interaction force is generated between coil and magnet to generate vibration.
Technical literature about vibrating motor is also more, such as application No. is 201110173577.9 patents of invention to disclose
A kind of linear vibration electric motor, a kind of linear oscillator generation disclosed in the patent of invention application No. is 201210197761.1 sets
It is standby.Therefore details are not described herein to be appreciated and understood that for structure those skilled in the art of linear vibration electric motor.
However existing linear vibration electric motor, in use since spring is in high-frequency reciprocating movement, spring can go out
Now deformation simultaneously will produce noise with balance weight collision generation.
Coil contacts design with wiring board simultaneously, can make glue excessive height, mover assembly appearance during high frequency motion
It easily strikes at coil glue so that coil glue face ruptures, and glue falls off, and the problem of coil falls off finally occurs；While by
Circuit board meeting and base contacts are passed through in coil, if glue amount is too low, coil is easy to be connected with pedestal so that motor occurs exhausted
The undesirable quality problems of edge.
Utility model content
The utility model becomes since spring high-frequency reciprocating moves in use in order to solve existing vibrating motor
Shape simultaneously contacts with balance weight and leads to the problem of noise, and provides a kind of linear vibration electric motor, even if spring goes out in high frequency motion
Now deformation will not collide with balance weight, to eliminate collision noise.
To solve technical problem, technical solution used by the utility model is：
A kind of linear vibration electric motor, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal wired
Circle, the periphery of coil are arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with balance
The interior top of block, yoke is connected with magnet, which is characterized in that the lower face of the contact surface and balance weight of the spring and yoke it
Between vertical range be L1,0.05mm≤L1≤0.25mm, the outer edge of the coupling part of spring and yoke and balance weight it is outer
Horizontal distance between edge is L2,0.8mm≤L2≤2.4mm.
The through-hole passed through for coil is offered on the circuit board.
The through-hole is stepped hole.
At least one notch is offered on the circumference of the stepped hole.
On the pedestal several grooves are equipped with the region of coil contact.
Compared with prior art, the utility model has the advantages that：
The linear vibration electric motor of the utility model in use, by by the connecting portion and balance of spring and yoke
It is both vertically and horizontally reserved with vertical range L1 and horizontal distance L2 respectively between block, to ensure spring in high frequency
During movement, even if can prevent from contacting between spring and balance weight if the case where deforming, to solve existing shake
Dynamic motor contacts the collision noise problem occurred due to camber of spring with balance weight.
The through-hole passed through for coil is offered on the circuit board of the utility model, through-hole is stepped hole so that this practicality
For new coil during with circuit board glue, the design of stepped hole enables glue to be flowed into the step surface of stepped hole
On so that the outside of coil can adequately be connect with circuit board, can either ensure the stability that coil is connect with circuit board,
Simultaneously because the design of step surface so that the height of glue substantially reduces, it is therefore prevented that mover assembly collides benefit during the motion
Jiao Chu prevents from rupturing at glue, and it is secured to ensure that coil is connect with circuit board.
The utility model can further increase the use of glue by notch design by the way that notch is arranged on stepped hole
Amount improves the stability of coil connection.
The utility model can also increase the glue area between coil and pedestal by the way that groove is arranged on pedestal, and one
Aspect improves the stability that coil is connect with pedestal, on the other hand due to the increase of glue quantity, improves between coil and pedestal
Insulation performance.
Description of the drawings
Fig. 1 is the section view figure structure schematic representation of the utility model；
Fig. 2 is the structural schematic diagram of the circuit board of the utility model；
Fig. 3 is the structural schematic diagram of the pedestal of the utility model；
Fig. 4 is the structural schematic diagram that circuit board is mounted on the base；
It is marked in figure：1, pedestal, 11, groove, 2, shell, 3, circuit board, 31, stepped hole, 32, step surface, 33, notch,
4, coil, 5, spring, 6, magnet, 7, yoke, 8, balance weight.
Specific implementation mode
With reference to embodiment, the utility model will be further described, and described embodiment is only that this practicality is new
Type a part of the embodiment is not whole embodiment.Based on the embodiments of the present invention, the ordinary skill people of this field
Other embodiments used that member is obtained without making creative work, belong to the protection model of the utility model
It encloses.
In conjunction with attached drawing, the linear vibration electric motor of the utility model includes pedestal 1, and shell 2, bottom are provided on the pedestal 1
Seat 1 forms a guard space together with shell 2, circuit board 3 is provided on pedestal 1, as a kind of preferred side of the utility model
Formula, circuit board 3 select FPC (i.e. flexible PCB), are connected with coil 4 on the pedestal 1, the periphery of coil 4 is arranged with spiral
The upper surface of the spring 5 of shape, spring 5 is connected with yoke 7, and the periphery of yoke 7 is arranged with balance weight 8, the interior top connection of yoke 7
There are magnet 6, the lower end of wherein magnet 6 to can extend into coil, i other words the outer diameter of magnet is less than the internal diameter of coil, the spring
5 and the vertical range of contact surface (face that i.e. spring and yoke are connected with each other) between the lower face of balance weight 8 of yoke 7 be
Water between the outer edge and the outer edge of balance weight 8 of the coupling part of L1,0.05mm≤L1≤0.25mm, spring 5 and yoke 7
Flat distance is L2,0.8mm≤L2≤2.4mm.As a kind of mode of selection of the utility model, upper surface and the yoke 7 of spring 5
Lower face between by being welded together.
The linear vibration electric motor of the utility model in use, by by the connecting portion and balance of spring and yoke
It is both vertically and horizontally reserved with vertical range L1 and horizontal distance L2 respectively between block, to ensure spring in high frequency
During movement, even if can prevent from contacting between spring and balance weight if the case where deforming, to solve existing shake
Dynamic motor contacts the collision noise problem occurred due to camber of spring with balance weight.
The data of the utility model L1 and L2 have fully considered the product for micro linears vibrating motors such as tablet, mobile phones
Size and applying frequency, therefore the utility model can be suitable for the use of the various sizes of micromotors such as tablet, mobile phone, all
It can prevent spring from occurring deforming and mutually colliding with balance weight after prolonged use.
It is offered on the circuit board 3 of the utility model and passes through through-hole for coil 4, coil 4 is made by the design of through-hole
It can be connect with pedestal 1 across circuit board 3 so that coil 4 can either be connect with circuit board 3, and coil 4 again can be with 1 phase of pedestal
It connects, to ensure the stability of coil connection.As a kind of preferred mode of the utility model, through-hole is stepped hole 31,
I other words coil 4 is connected with each other after passing through stepped hole 31 with pedestal 1, offered for coil on the circuit board 3 of the utility model
The stepped hole 31 passed through so that during with 3 glue of circuit board, the design of stepped hole 31 makes the utility model coil 4
Glue can be flowed on step surface 32 so that the outside of coil 4 can fully be connect with circuit board 3, can either ensure coil 4
The stability being connect with circuit board 3, simultaneously because the design of step surface 32 so that the height of glue substantially reduces, anti-stop
Sub-component collides at glue during the motion, to prevent being ruptured at glue, ensures the jail that coil is connect with circuit board
Gu.
As a kind of preferred mode of the utility model, at least one notch is offered on the circumference of the stepped hole 31
33, the utility model can further increase the dosage of glue by notch design, improve by the way that notch is arranged on stepped hole
The stability of coil connection.
33,2 notches of a notch can be opened up during actual production and utilization, on the circumference of stepped hole 31
33,3 notches, 4 notches etc..As a kind of preferred mode of the utility model, in order to ensure the firm of coil connection
Property, while easy to produce and making, 3 notches 33 provided circumferentially about of stepped hole 31.
Region on the pedestal 1 for being contacted with coil 4 is equipped with several grooves 11, and the utility model passes through in pedestal
Upper setting groove can also increase the glue area between coil and pedestal, and on the one hand raising coil is connect firm with pedestal
Property, on the other hand due to the increase of glue quantity, improve the insulation performance between coil and pedestal.Wherein, groove 11 is uniform
It is distributed on the region of pedestal 1.
Embodiment one
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1,0.05mm≤L1≤0.25mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke
Horizontal distance be L2,0.8mm≤L2≤2.4mm.
Embodiment two
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.05mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 0.8mm.
Embodiment three
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.25mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 2.4mm.
Example IV
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.10mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 1.0mm.
Embodiment five
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.08mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 1.5mm.
Embodiment six
On the basis of any of the above-described embodiment, the through-hole passed through for coil is offered on the circuit board.
Embodiment seven
On the basis of embodiment six, the through-hole is stepped hole.
Embodiment eight
On the basis of embodiment seven, at least one notch is offered on the circumference of the stepped hole.
Embodiment nine
On the basis of embodiment seven, opened up on the circumference of the stepped hole there are three notch.
Embodiment ten
On the basis of any of the above-described embodiment, several grooves are equipped with the region of coil contact on the pedestal.
Embodiment 11
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.20mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 2.0mm.
Embodiment 12
The linear vibration electric motor of the present embodiment, including pedestal are provided with circuit board on the pedestal, are connected on the pedestal
There is a coil, the periphery of coil is arranged with spiral helicine spring, and the upper surface of spring is connected with yoke, and the periphery of yoke is arranged with flat
Weigh block, and the interior top of yoke is connected with magnet, vertical between the spring and the contact surface of yoke and the lower face of balance weight
Distance is L1, L1 0.15mm, between spring and the outer edge of coupling part and the outer edge of balance weight of yoke it is horizontal away from
From for L2, L2 0.9mm.
Claims (5)
1. a kind of linear vibration electric motor, including pedestal (1), it is provided with circuit board (3) on the pedestal (1), on the pedestal (1)
It is connected with coil (4), the periphery of coil (4) is arranged with spiral helicine spring (5), and the upper surface of spring (5) is connected with yoke
(7), the periphery of yoke (7) is arranged with balance weight (8), and the interior top of yoke (7) is connected with magnet (6), which is characterized in that described
Vertical range between spring (5) and the contact surface and the lower face of balance weight (8) of yoke (7) is L1,0.05mm≤L1≤
Horizontal distance between the outer edge and the outer edge of balance weight (8) of the coupling part of 0.25mm, spring (5) and yoke (7) is
L2,0.8mm≤L2≤2.4mm.
2. linear vibration electric motor according to claim 1, which is characterized in that offered for line on the circuit board (3)
Enclose across through-hole.
3. linear vibration electric motor according to claim 2, which is characterized in that the through-hole is stepped hole (31).
4. linear vibration electric motor according to claim 3, which is characterized in that offered on the circumference of the stepped hole (31)
At least one notch (33).
5. linear vibration electric motor according to claim 1, which is characterized in that contacted with coil (4) on the pedestal (1)
Region is equipped with several grooves (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820008399.1U CN207677611U (en) | 2018-01-03 | 2018-01-03 | A kind of linear vibration electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820008399.1U CN207677611U (en) | 2018-01-03 | 2018-01-03 | A kind of linear vibration electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207677611U true CN207677611U (en) | 2018-07-31 |
Family
ID=62973310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820008399.1U Active CN207677611U (en) | 2018-01-03 | 2018-01-03 | A kind of linear vibration electric motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207677611U (en) |
-
2018
- 2018-01-03 CN CN201820008399.1U patent/CN207677611U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 621000 Mianyang province Sichuan City Feiyun Avenue East No. 261 Patentee after: Sichuan Anhe Precision Electronics and Electrical Appliances Co., Ltd. Address before: 621000 No. 261, East Section of Feiyun Avenue, Fucheng District, Mianyang City, Sichuan Province Patentee before: SICHUAN ANHE PRECISION ELECTRONIC ELECTRICAL APPLIANCES CO., LTD. |
|
| CP03 | Change of name, title or address |