CN212486366U - Flexible circuit voice coil motor - Google Patents
Flexible circuit voice coil motor Download PDFInfo
- Publication number
- CN212486366U CN212486366U CN202021476203.5U CN202021476203U CN212486366U CN 212486366 U CN212486366 U CN 212486366U CN 202021476203 U CN202021476203 U CN 202021476203U CN 212486366 U CN212486366 U CN 212486366U
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- flexible circuit
- circuit board
- voice coil
- bobbin
- coil motor
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Abstract
The utility model relates to the field of voice coil motors, and discloses a flexible circuit voice coil motor, which comprises an iron shell and a bobbin, wherein a magnet steel body is arranged in the middle of the iron shell, a guide hole penetrating through the bottom of the iron shell is formed in the top of the magnet steel body, an annular coil is fixed on the lower part of the bobbin, a guide shaft is fixed in the middle of the bobbin, and the bobbin is clamped with the iron shell so that the guide shaft extends into the guide hole; the upper side of the coil is connected with a flexible circuit board; through connecting flexible circuit board, flexible circuit board thickness is thin and resistant book, and the low price is provided with many copper lines on the flexible circuit board, has stronger functionality, can produce relative motion between bobbin and the iron-clad, and the light stable in structure of flexible circuit board quality can not produce unnecessary friction, guarantees voice coil motor's performance.
Description
Technical Field
The utility model relates to a voice coil motor field, concretely relates to flexible circuit voice coil motor.
Background
With the development of the technology, the voice coil motor is widely applied by virtue of the advantage of high performance, the principle of the voice coil motor is that a force can be applied to an electrified coil in a magnetic field, and the magnitude of the force is proportional to the current applied to the coil; the two ends of a coil are generally connected out through two wires in the existing voice coil motor, the function is single, certain limitation is achieved, based on the principle, the design is improved, the two ends of a current leading-out wire and the two ends of a current leading-in wire are connected with a flexible circuit board, the flexible circuit board is used for controlling the equipment structure, and the voice coil motor has stronger functionality.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a flexible circuit voice coil motor that function is complete.
The utility model provides a technical scheme that its technical problem adopted is: a flexible circuit voice coil motor comprises an iron shell and a bobbin, wherein a magnetic steel body is arranged in the middle of the iron shell, a guide hole penetrating through the bottom of the iron shell is formed in the top of the magnetic steel body, an annular coil is fixed on the lower portion of the bobbin, a guide shaft is fixed in the middle of the bobbin, and the bobbin is clamped with the iron shell so that the guide shaft extends into the guide hole; the flexible printed circuit board is connected to the upper side of the coil and comprises an insulating film, a conductor and an adhesive, and the insulating film is arranged on two sides of the conductor through the adhesive.
Further, the two ends of the coil are respectively provided with a current outgoing line and a current incoming line, and the conductors on the flexible circuit board are respectively connected with the current outgoing line and the current incoming line.
Furthermore, a plurality of internal thread holes are symmetrically formed in the top of the winding drum.
Further, the lead connection site of the flexible circuit board is coated with an adhesive.
Further, an interval is arranged between the inside of the iron shell and the outer wall of the winding drum, and an interval is arranged between the inner wall of the winding drum and the outer wall of the magnetic steel body.
The utility model has the advantages that: at current lead-out wire and current lead-in wire end connection flexible circuit board, through connecting flexible circuit board, flexible circuit board thickness is thin and resistant folding, and the low price is provided with many copper lines on the flexible circuit board, has more powerful functionality, can produce relative motion between bobbin and the iron-clad, and the light stable in structure of flexible circuit board quality can not produce unnecessary friction, guarantees voice coil motor's performance.
Drawings
FIG. 1 is a block diagram of a flexible circuit voice coil motor bobbin;
FIG. 2 is a side view of a flexible circuit voice coil motor bobbin;
FIG. 3 is a bottom view of a flexible circuit voice coil motor;
FIG. 4 is a block diagram of a flexible circuit board;
labeled as: 1. a flexible circuit board; 2. an iron shell; 3. a bobbin; 4. a magnetic steel body; 5. a guide shaft; 6. a guide hole; 7. a current lead-out wire; 8. current lead-in wires; 9. a coil;
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The flexible circuit voice coil motor shown in fig. 1 comprises an iron shell 2 and a bobbin 3, wherein a magnet body 4 is arranged in the middle of the iron shell 2, a guide hole 6 penetrating through the bottom of the iron shell 2 is formed in the top of the magnet body 4, an annular coil 9 is fixed on the lower portion of the bobbin 3, a guide shaft 5 is fixed in the middle of the bobbin 3, and the bobbin 3 is clamped with the iron shell 2 so that the guide shaft 5 extends into the guide hole 6; the upper side of the coil 9 is connected with a flexible circuit board 1, the flexible circuit board 1 comprises an insulating film, a conductor and a binder, and the insulating film is arranged on two sides of the conductor through the binder.
The principle is as follows: voice coil motor has mainly utilized circular telegram coil 9 can the atress motion's principle in the magnetic field, change traditional wire part into flexible circuit board 1, flexible circuit board 1 on the connection includes insulating film, conductor and binder, the conductor is the metal copper material, be provided with many wires on the flexible circuit board 1, stronger functionality has, the light and thin structure of flexible circuit board 1 texture is soft, can not influence the motion of coil 9, can guarantee its superior performance, therefore, the carrier wave prepaid electric energy meter is low in cost, can be fine promotion economic benefits.
On the basis, the two ends of the coil 9 are respectively provided with a current outgoing line 7 and a current incoming line 8, and the conductors on the flexible circuit board 1 are respectively connected with the current outgoing line 7 and the current incoming line 8.
The current leading-out wire 7 and the current leading-in wire 8 can be communicated with a circuit, so that the electrified coil 9 can be stressed to move in a magnetic field after being electrified, and the device has excellent performance and stable structure.
On the basis, a plurality of internal thread holes are symmetrically formed in the top of the bobbin 3; the position of the winding drum 3 is convenient to fix, the position of the voice coil motor is convenient to adjust, and the use is convenient.
On the basis, the lead connection part of the flexible circuit board 1 is coated with adhesive; by coating the adhesive on the lead wire connecting the flexible circuit board 1 and the coil 9, the normal operation of the voice coil motor can be ensured, and the flexible circuit board 1 can be protected.
On the basis, a gap is arranged between the inner part of the iron shell 2 and the outer wall of the bobbin 3, and a gap is arranged between the inner wall of the bobbin 3 and the outer wall of the magnetic steel body 4; the electrified coil 9 can not rub the inner wall when the iron shell 2 is stressed to move, and the running of the electrified coil 9 can not be influenced.
The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (5)
1. A flexible circuit voice coil motor, characterized in that: the winding machine comprises an iron shell (2) and a winding drum (3), wherein a magnetic steel body (4) is arranged in the middle of the iron shell (2), a guide hole (6) penetrating through the bottom of the iron shell (2) is formed in the top of the magnetic steel body (4), an annular coil (9) is fixed on the lower portion of the winding drum (3), a guide shaft (5) is fixed in the middle of the winding drum (3), and the winding drum (3) is clamped with the iron shell (2) so that the guide shaft (5) extends into the guide hole (6); the flexible printed circuit board (1) is connected to the upper side of the coil (9), the flexible printed circuit board (1) comprises an insulating film, a conductor and a binder, and the insulating film is arranged on two sides of the conductor through the binder.
2. A flexible circuit voice coil motor as claimed in claim 1, wherein: the two ends of the coil (9) are respectively a current outgoing line (7) and a current incoming line (8), and conductors on the flexible circuit board (1) are respectively connected with the current outgoing line (7) and the current incoming line (8).
3. The flexible circuit voice coil motor according to claim 1, wherein a plurality of internal screw holes are symmetrically arranged on the top of the bobbin (3).
4. A flexible circuit voice coil motor according to claim 1, wherein the lead connections of the flexible circuit board (1) are coated with an adhesive.
5. The flexible circuit voice coil motor according to claim 1, wherein a space is provided between the inside of the iron case (2) and the outer wall of the bobbin (3), and a space is provided between the inner wall of the bobbin (3) and the outer wall of the magnet steel body (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021476203.5U CN212486366U (en) | 2020-07-24 | 2020-07-24 | Flexible circuit voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021476203.5U CN212486366U (en) | 2020-07-24 | 2020-07-24 | Flexible circuit voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486366U true CN212486366U (en) | 2021-02-05 |
Family
ID=74452178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021476203.5U Active CN212486366U (en) | 2020-07-24 | 2020-07-24 | Flexible circuit voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212486366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4280437A1 (en) * | 2022-05-20 | 2023-11-22 | Faulhaber Precistep SA | Two phase stepper motor |
-
2020
- 2020-07-24 CN CN202021476203.5U patent/CN212486366U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4280437A1 (en) * | 2022-05-20 | 2023-11-22 | Faulhaber Precistep SA | Two phase stepper motor |
| WO2023223190A1 (en) * | 2022-05-20 | 2023-11-23 | Faulhaber Precistep Sa | Two-phased stepper motor |
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