CN211859910U - Voice coil motor with magnetic suspension structure - Google Patents
Voice coil motor with magnetic suspension structure Download PDFInfo
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- CN211859910U CN211859910U CN202020781983.8U CN202020781983U CN211859910U CN 211859910 U CN211859910 U CN 211859910U CN 202020781983 U CN202020781983 U CN 202020781983U CN 211859910 U CN211859910 U CN 211859910U
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- circuit board
- carrier
- base
- voice coil
- coil motor
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Abstract
The utility model discloses a voice coil motor with magnetic suspension structure, which comprises a base, a carrier and a shell, wherein the shell is sleeved outside the base and is clamped and connected with the base; a circuit board is arranged between the carrier and the base, the bottom end of the circuit board is inserted into a circuit board slot arranged on the base, one side of the circuit board close to the carrier is provided with an electrified coil, the position of the electrified coil corresponds to that of the magnet, the electrified coil is electrically connected with the circuit board, a sensor is arranged in the electrified coil, and the sensor is electrically connected with the circuit board; one side of the circuit board close to the base is provided with a patch, the patch is adhered to the outer side surface of the circuit board, and the position of the patch corresponds to the position of the magnet.
Description
Technical Field
The utility model relates to a voice coil motor field especially relates to a voice coil motor with magnetic suspension structure.
Background
With the continuous development and progress of the technology level, the requirement of consumers on the imaging quality of portable digital products (such as smart phones and tablet computers) is higher and higher. At present, a driving motor is usually used on a digital product to realize the front and back telescopic movement of a lens, the lens is fixed on a carrier in the driving motor when the digital product is used, the distance adjustment of the lens is realized by adjusting the movement of the carrier, the operation is simple and fast, and convenience is brought to the focal length adjustment of a camera.
The existing closed-loop voice coil motor is mainly divided into a ball type closed-loop voice coil motor and a spring piece type closed-loop voice coil motor. Because the camera structure of the mobile phone is precise and tiny, the closed-loop motor with the ball structure is difficult to assemble, and because the contact area of the ball is small, after the mobile phone runs for a long time, the part which is in physical contact with the ball can generate deformation through long-term friction, and the function of the closed-loop voice coil motor can be seriously influenced, even the function of the closed-loop voice coil motor can be caused to be invalid; the structure of the presently published spring piece type closed loop voice coil motor is complex in structure and high in production cost, and is not beneficial to automatic production. Therefore, it is a technical problem to be solved urgently in the industry to provide a closed loop voice coil motor with a simple structure and a long service life.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a voice coil motor with magnetic suspension structure of simple structure, convenient to use.
In order to realize the purpose, the technical scheme of the utility model is that:
a voice coil motor with a magnetic suspension structure comprises a base, a carrier and a shell, wherein the shell is sleeved outside the base and is clamped and connected with the base, the carrier is sleeved in the base and can move longitudinally relative to the base, a magnet slot is formed in the side surface of the carrier, and a magnet is arranged in the magnet slot; a circuit board is arranged between the carrier and the base, the bottom end of the circuit board is inserted into a circuit board slot arranged on the base, one side of the circuit board close to the carrier is provided with an electrified coil, the position of the electrified coil corresponds to that of the magnet, the electrified coil is electrically connected with the circuit board, a sensor is arranged in the electrified coil, and the sensor is electrically connected with the circuit board; one side of the circuit board close to the base is provided with a patch, the patch is adhered to the outer side surface of the circuit board, and the position of the patch corresponds to the position of the magnet.
Further, the upper end of the base is provided with a mounting groove, and the carrier is arranged in the mounting groove and can longitudinally slide relative to the mounting groove.
Furthermore, the carrier is in an octagonal prism shape, the right side surface, the right front side surface and the right rear side surface of the carrier are provided with magnet slots, and magnets are arranged in the magnet slots.
Furthermore, the circuit board is in an opening-facing-left flaring U-shaped shape, and an electrified coil corresponding to the magnet is arranged on the inner side surface of the circuit board.
Further, the patch is a metal patch.
Furthermore, a heat dissipation through hole is formed in the right side face of the base and is located on the outer side of the circuit board.
Compared with the prior art, the utility model has the advantages and positive effect be:
the utility model adopts the design that the magnet slots are arranged outside the carrier and correspond to the coils arranged on the circuit board, so that when the carrier needs to be moved, the electrification of the electrified coil is controlled only by the circuit board, a magnetic field can be generated after the electrified coil is electrified, and the magnets can move upwards or downwards under the action force of electromagnetic induction, thereby driving the carrier to realize translation; in the use process, the carrier and the coil do not generate any friction, the deformation of the carrier caused by long-term friction is avoided, the service life of the voice coil motor is effectively prolonged, and the height position of the carrier can be monitored through the sensor by connecting the sensor on the circuit board, so that the control precision of the carrier in the voice coil motor is improved;
on the other hand, the utility model discloses a three group's magnetites, the design that three group's electrical coil combined together, three group's drive assembly have been possessed in other words, make it further to strengthen the driving force to the carrier, thereby make closed loop motor's operation effect can further improve, and through the design that sets up the metal paster in the circuit board outside, make when the carrier playback and when not driving, the carrier can be through the magnetic force of the inter attraction that the metal paster in the magnetite and circuit board outside produced, thereby the auxiliary carrier carries out accurate playback, the playback precision of carrier has effectively been improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is an assembly structure view of the present invention;
FIG. 2 is a top view of the structure of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a schematic structural view of a base;
fig. 5 is a schematic structural diagram of the circuit board.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by a person of ordinary skill in the art without creative efforts shall be included in the protection scope of the present invention.
As shown in fig. 1 to 5, the voice coil motor with a magnetic suspension structure in this embodiment includes a base 6, a carrier 2, and a housing 1, where the housing 1 is sleeved outside the base 6 and is connected with the base 6 in a snap-fit manner, an installation groove 601 is disposed at an upper end of the base 6, and the carrier 2 is disposed in the installation groove 601 and can slide longitudinally relative to the installation groove 601;
the carrier 2 is in an octagonal prism shape, magnet slots 201 are formed in the right side surface, the right front side surface and the right rear side surface of the carrier 2, and magnets 3 are arranged in the magnet slots 201; a circuit board 5 is arranged between the carrier 2 and the base 6; the bottom end of the circuit board 5 is inserted into a circuit board slot 602 arranged on the base 6, and the circuit board slot 602 is positioned at the inner edge of the mounting groove 601;
the circuit board 5 is in an flaring U shape with an opening facing left, one side of the circuit board 5 close to the carrier 2 is provided with three electrified coils 501, the three electrified coils 501 correspond to the positions of the three magnets 3 respectively, the electrified coils 501 are electrically connected with the circuit board 5, a sensor 502 is arranged in the electrified coils 501, and the sensor 502 is electrically connected with the circuit board 5; one side of circuit board 5 that is close to base 6 is provided with metal paster 4, and metal paster 4 is located between 5 lateral surfaces of circuit board and the 6 medial surfaces of base, and metal paster 4 pastes at 5 lateral surfaces of circuit board and the position of metal paster 4 corresponds with the position of magnetite 3.
6 right flank of base is provided with heat dissipation through-hole 603, and heat dissipation through-hole 603 is located the circuit board 5 outside, and heat dissipation through-hole 603 can play for the radiating effect of circuit board 5, avoids circuit board 5 because of the situation that the live time overlength leads to life to shorten, has effectively prolonged the utility model discloses a life.
The utility model adopts the design that the magnet slots are arranged outside the carrier and correspond to the coils arranged on the circuit board, so that when the carrier needs to be moved, the electrification of the electrified coil is controlled only by the circuit board, a magnetic field can be generated after the electrified coil is electrified, and the magnets can move upwards or downwards under the action force of electromagnetic induction, thereby driving the carrier to realize translation; in the use process, the carrier and the coil do not generate any friction, the deformation of the carrier caused by long-term friction is avoided, the service life of the voice coil motor is effectively prolonged, and the height position of the carrier can be monitored through the sensor by connecting the sensor on the circuit board, so that the control precision of the carrier in the voice coil motor is improved;
on the other hand, the utility model discloses a three group's magnetites, the design that three group's electrical coil combined together, three group's drive assembly have been possessed in other words, make it further to strengthen the driving force to the carrier, thereby make closed loop motor's operation effect can further improve, and through the design that sets up the metal paster in the circuit board outside, make when the carrier playback and when not driving, the carrier can be through the magnetic force of the inter attraction that the metal paster in the magnetite and circuit board outside produced, thereby the auxiliary carrier carries out accurate playback, the playback precision of carrier has effectively been improved.
Claims (6)
1. The utility model provides a voice coil motor with magnetic suspension structure, includes base, carrier, shell, and the shell cup joints in the base outside and is connected with the base block, and the carrier cup joints in the base and can be for base longitudinal movement, its characterized in that: a magnet slot is formed in the side surface of the carrier, and a magnet is arranged in the magnet slot; a circuit board is arranged between the carrier and the base, the bottom end of the circuit board is inserted into a circuit board slot arranged on the base, one side of the circuit board close to the carrier is provided with an electrified coil, the position of the electrified coil corresponds to that of the magnet, the electrified coil is electrically connected with the circuit board, a sensor is arranged in the electrified coil, and the sensor is electrically connected with the circuit board; one side of the circuit board close to the base is provided with a patch, the patch is adhered to the outer side surface of the circuit board, and the position of the patch corresponds to the position of the magnet.
2. The voice coil motor having a magnetic levitation structure as claimed in claim 1, wherein: the upper end of the base is provided with a mounting groove, and the carrier is arranged in the mounting groove and can longitudinally slide relative to the mounting groove.
3. The voice coil motor having a magnetic levitation structure as claimed in claim 2, wherein: the carrier is eight prisms, and the positive right flank, right front side, the right trailing flank of carrier all are provided with the magnetite slot and all are provided with the magnetite in the magnetite slot.
4. The voice coil motor having a magnetic levitation structure as claimed in claim 3, wherein: the circuit board is in an opening-facing-left flaring U-shaped shape, and an electrified coil corresponding to the magnet is arranged on the inner side surface of the circuit board.
5. The voice coil motor having a magnetic levitation structure as claimed in claim 4, wherein: the patch is a metal patch.
6. The voice coil motor having a magnetic levitation structure as recited in claim 5, wherein: the base right flank is provided with the heat dissipation through-hole, and the heat dissipation through-hole is located the circuit board outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020781983.8U CN211859910U (en) | 2020-05-13 | 2020-05-13 | Voice coil motor with magnetic suspension structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020781983.8U CN211859910U (en) | 2020-05-13 | 2020-05-13 | Voice coil motor with magnetic suspension structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211859910U true CN211859910U (en) | 2020-11-03 |
Family
ID=73177642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020781983.8U Active CN211859910U (en) | 2020-05-13 | 2020-05-13 | Voice coil motor with magnetic suspension structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211859910U (en) |
-
2020
- 2020-05-13 CN CN202020781983.8U patent/CN211859910U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Bao Heping Inventor after: Lin Cong Inventor after: Peng Kun Inventor after: Liu Fuquan Inventor after: Lv Xinke Inventor before: Bao Heping Inventor before: Lin Cong Inventor before: Peng Kun Inventor before: Liu Fuquan Inventor before: Lv Xinke |