CN217216296U - Voice coil motor - Google Patents
Voice coil motor Download PDFInfo
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- CN217216296U CN217216296U CN202220985976.9U CN202220985976U CN217216296U CN 217216296 U CN217216296 U CN 217216296U CN 202220985976 U CN202220985976 U CN 202220985976U CN 217216296 U CN217216296 U CN 217216296U
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- China
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- position sensor
- sensor support
- threaded holes
- voice coil
- coil motor
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Abstract
The utility model discloses a voice coil motor, including the tube-shape shell, the one end threaded connection of shell has the lens sleeve, the other end rigid coupling of shell has the position sensor support, the through-hole has been seted up at the middle part of position sensor support, be provided with the spliced pole in the through-hole, the one end winding of spliced pole has the coil, the coil is connected with the position sensor support, one side rigid coupling that the shell was kept away from to the position sensor support has magnet, one side that magnet is close to the position sensor support is seted up flutedly along its circumference, the one end of spliced pole winding coil stretches into in the recess; the utility model discloses will remain stable under the stop condition and no longer lead to the shake because of the light wave that non-luminotron was received to the sensitization piece.
Description
Technical Field
The utility model relates to a laser equipment technical field, concretely relates to voice coil motor.
Background
The voice coil motor is a direct drive motor with excellent performances such as high acceleration, high speed, quick response and smooth force characteristics, and is widely applied to optical scanning, positioning, aiming, tracking and stabilization in the fields of optics, microelectronics and measurement, and performs precise motion control on a lens or a reflector. Such as automatic focusing of video cameras, digital cameras and microscopes, dynamic focusing of the Z-axis of laser cutting equipment, focusing and tracking of optical disc drives, and yaw control of fast mirrors in astronomical telescopes. The voice coil motor has the advantages of simple structure, high precision, high response, no maintenance, no tooth space effect, no need of commutation, and is particularly suitable for closed-loop servo control with short stroke, fast response and high precision. Voice coil motors are also commonly used in laser marking, a marking machine needs to mark a label with a three-dimensional effect on a material, a mirror is controlled by a motion feedback system, the laser is guided to be positioned at a corresponding position within a period of time, and the voice coil motor is an ideal linear actuator and has an excellent effect on short-distance position control.
When the voice coil motor is applied to laser marking, 3D printing and other industries related to laser, the type and the source of light waves cannot be distinguished when the light waves are received by a photosensitive film of the voice coil motor. The wavelength range of the light emitted by the light emitting tube is lambda 2 A lambda 3 nm, the working light wave length lambda 1nm is contained in the light-emitting wave length range of the light-emitting tube, and the light wave range which can be received by the light-sensitive sheet contains lambda 2-lambda 3nm, and because the working light can be dissipated in the whole structure to be received by the light-sensitive sheet when the working light passes through the motor, the whole light-sensitive sheet can not normally operate, so that the motor can not work when being paralyzed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a voice coil motor to solve the problem that proposes among the above-mentioned background art.
The utility model discloses the technical scheme who adopts is, voice coil motor, including the tube-shape shell, the one end threaded connection of shell has the lens sleeve, and the other end rigid coupling of shell has the position sensor support, and the through-hole has been seted up at the middle part of position sensor support, is provided with the spliced pole in the through-hole, and the one end winding of spliced pole has the coil, and one side rigid coupling that the shell was kept away from to the position sensor support has magnet, and magnet is close to one side of position sensor support and sets up flutedly along its circumference, and the one end of spliced pole winding coil stretches into in the recess.
The utility model discloses a characteristics still lie in:
the position sensor support is sequentially connected with a light-emitting tube, a filter and a photosensitive sheet along the circumferential direction of the position sensor support, the light-emitting tube, the filter and the photosensitive sheet are positioned on the same axis, a first clamping groove is formed in the position sensor support, and the first clamping groove is formed between the filter and the light-emitting tube;
the column body of the connecting column is connected with a light blocking sheet, and the light blocking sheet is matched with the first clamping groove;
a second clamping groove is formed in the magnet and is communicated with the groove, the second clamping groove is matched with the light blocking sheet, and the second clamping groove is opposite to the first clamping groove;
the position sensor bracket is provided with two first threaded holes which are respectively arranged at two sides of the through hole, and the two first threaded holes are connected with the shell through screws;
two second threaded holes are formed in the magnet, the two second threaded holes are formed in the two sides of the groove respectively, the second threaded holes are arranged opposite to the first threaded holes, and the screw penetrates through the first threaded holes and the second threaded holes to be connected with the magnet, the position sensor support and the shell.
The beneficial effects of the utility model are that:
the utility model discloses voice coil motor installs the filter plate additional before the photosensitive section and filters lambda 1 nm light wave to make the motor operate without receiving working light lambda dissipated in the motor 1 The influence of nm light wave to voice coil motor whole can normal operating, also make position feedback more accurate, further strengthened voice coil motor's stability and reliability, let its required action of completion that can be better, also can realize the application to multiple product according to the different filters of change of operating light wavelength.
Drawings
Fig. 1 is an exploded view of a voice coil motor according to the present invention;
fig. 2 is a sectional view of the voice coil motor of the present invention;
fig. 3 is a schematic view of a partial structure of a position sensor holder in a voice coil motor according to the present invention;
fig. 4 is a schematic view of a partial structure of a connection column in a voice coil motor according to the present invention;
fig. 5 is a schematic view of a local structure of the magnet in the voice coil motor of the present invention.
In the figure: 1. the light-emitting diode comprises a shell, 2. a coil, 3. a magnet, 4. a lens sleeve, 5. a position sensor support, 6. a light-emitting tube, 7. a light blocking sheet, 8. a filter sheet, 9. a light sensing sheet, 10. a through hole, 11. a connecting column, 12. a groove, 13. a first clamping groove, 14. a second clamping groove, 15. a first threaded hole and 16. a second threaded hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a voice coil motor, as shown in fig. 1-3, including tubular shell 1, the one end threaded connection of shell 1 has lens sleeve 4, the other end rigid coupling of shell 1 has position sensor support 5, through-hole 10 has been seted up at position sensor support 5's middle part, be provided with spliced pole 11 in the through-hole 10, the one end winding of spliced pole 11 has coil 2, one side rigid coupling that shell 1 was kept away from to position sensor support 5 has magnet 3, magnet 3 is close to one side of position sensor support 5 and has seted up recess 12 along its circumference, spliced pole 11 winding coil 2's one end stretches into in the recess 12. The cross sections of the position sensor bracket 5 and the magnet 3 are both set to be circular, and the structure is matched with the shell 1.
As shown in fig. 4, the shaft of the connecting post 11 is connected with a light barrier 7, and the light barrier 7 is matched with the first locking groove 13.
As shown in fig. 5, the magnet 3 is provided with a second engaging groove 14, the second engaging groove 14 is communicated with the groove 12, the second engaging groove 14 is matched with the light blocking sheet 7, and the second engaging groove 14 is opposite to the first engaging groove 13.
Two first threaded holes 15 are formed in the position sensor support 5, the two first threaded holes 15 are respectively formed in two sides of the through hole 10, and the two first threaded holes 15 are connected with the shell 1 through screws.
Two second threaded holes 16 are formed in the magnet 3, the two second threaded holes 16 are respectively formed in two sides of the groove 12, the second threaded holes 16 are opposite to the first threaded holes 15, and screws penetrate through the first threaded holes 15 and the second threaded holes 16 to be connected with the magnet 3, the position sensor support 5 and the shell 1.
The utility model discloses voice coil motor's theory of operation as follows:
connect external power supply with the motor, coil 2 gets the electricity and moves in the magnetic field that recess 12 of magnet 3 formed, drives spliced pole 11 motion, and then drives light blocking sheet 7 and remove in first draw-in groove 13, and the light that luminotron 6 sent shines on light sensing sheet 9 after passing through light blocking sheet 7 and then being filtered by filter 8, and the light position that light blocking sheet 7 position difference light sensing sheet 9 received also can be different.
Since the operating light wave is λ 1 Light wave of nm wavelength, and the light emitted from the light emitting tube 6 is lambda 2 A lambda 3 Light of a wavelength in the range nm, which includes the operating light wave lambda 1 Light waves of nm wavelength, and the light waves received by the photosensitive sheet 9 include lambda 2 A lambda 3 nm, which makes it necessary for the light-sensitive plate 9 to no longer receive λ 1 Light waves with a wavelength of nm can solve this problem. The product covers the surface of the photosensitive sheet 9 with the optical filter 8, so that the optical filter 8 covers lambda 1 The light wave with nm wavelength is completely filtered, and the light of the luminous tube 6 is filtered by the optical filter to form lambda 1 The light wave of nm wavelength can also make the photosensitive film 9 work normally.
The utility model discloses voice coil motor, install the filter plate additional before the sensitization piece of position sensor support and filter working light lambda 1 The nm wave enables the photosensitive piece to work normally, and therefore the motor can not work due to the fact that working light escapes in the structure and the photosensitive piece cannot work due to the fact that the photosensitive piece is whole photosensitive. The influence of the working light on the photosensitive film is successfully solved, and the filter can be replaced according to different working lights to be applied to other products of different models or types.
Claims (6)
1. Voice coil motor, its characterized in that, including tube-shape shell (1), the one end threaded connection of shell (1) has lens sleeve (4), the other end rigid coupling of shell (1) has position sensor support (5), through-hole (10) have been seted up at the middle part of position sensor support (5), be provided with spliced pole (11) in through-hole (10), the one end winding of spliced pole (11) has coil (2), one side rigid coupling that shell (1) was kept away from in position sensor support (5) has magnet (3), one side that magnet (3) are close to position sensor support (5) is seted up recess (12) along its circumference, the one end of spliced pole (11) winding coil (2) stretches into in recess (12).
2. The voice coil motor of claim 1, characterized in that luminotron (6), filter (8) and sensitization piece (9) have been connected gradually along its circumference on position sensor support (5), luminotron (6), filter (8) and sensitization piece (9) are located same axis, first draw-in groove (13) have been seted up on position sensor support (5), first draw-in groove (13) set up between filter (8) and luminotron (6), filter (8) cover in sensitization piece (9) surface.
3. The voice coil motor according to claim 1, characterized in that the shaft of the connection column (11) is connected with a light barrier (7), and the light barrier (7) is matched with the first clamping groove (13).
4. The voice coil motor according to claim 1, wherein the magnet (3) is provided with a second engaging groove (14), the second engaging groove (14) is communicated with the groove (12), the second engaging groove (14) is matched with the light blocking plate (7), and the second engaging groove (14) is opposite to the first engaging groove (13).
5. The voice coil motor according to claim 1, wherein the position sensor bracket (5) is provided with two first threaded holes (15), the two first threaded holes (15) are respectively arranged at two sides of the through hole (10), and the two first threaded holes (15) are connected with the housing (1) through screws.
6. The voice coil motor according to claim 1, wherein the magnet (3) is provided with two second threaded holes (16), the two second threaded holes (16) are respectively arranged at two sides of the groove (12), the second threaded holes (16) are arranged opposite to the first threaded holes (15), and screws penetrate through the first threaded holes (15) and the second threaded holes (16) to connect the magnet (3), the position sensor support (5) and the housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985976.9U CN217216296U (en) | 2022-04-26 | 2022-04-26 | Voice coil motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220985976.9U CN217216296U (en) | 2022-04-26 | 2022-04-26 | Voice coil motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217216296U true CN217216296U (en) | 2022-08-16 |
Family
ID=82776735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220985976.9U Active CN217216296U (en) | 2022-04-26 | 2022-04-26 | Voice coil motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217216296U (en) |
-
2022
- 2022-04-26 CN CN202220985976.9U patent/CN217216296U/en active Active
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