CN213817954U - Four-axis anti-shake voice coil motor for miniature camera - Google Patents
Four-axis anti-shake voice coil motor for miniature camera Download PDFInfo
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- CN213817954U CN213817954U CN202022991364.4U CN202022991364U CN213817954U CN 213817954 U CN213817954 U CN 213817954U CN 202022991364 U CN202022991364 U CN 202022991364U CN 213817954 U CN213817954 U CN 213817954U
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Abstract
The utility model discloses a four-axis anti-shake voice coil motor for miniature camera, include: triaxial anti-shake voice coil motor, sealed carrier, unipolar rotation anti-shake voice coil motor that hold. The triaxial anti-shake voice coil motor comprises a moving part group, wherein one group of moving part group controls two degrees of freedom in the horizontal direction, the other group of moving part group controls one degree of freedom in the vertical direction, the sealing bearing part is used for connecting the triaxial anti-shake voice coil motor and the uniaxial rotation anti-shake voice coil motor, and meanwhile, the path of incident light can be sealed, so that the influence of stray light and foreign matters on imaging of the photosensitive chip is avoided. The single-shaft rotation anti-shake voice coil motor is internally provided with a moving part for bearing a photosensitive chip, and the moving part can rotate along a vertical shaft under the traction of bottom driving. The utility model discloses realize under the prerequisite that traditional motor was focused, increased the anti-shake of two degrees of freedom of horizontal direction and along the rotatory anti-shake of vertical axis for the sensitization chip becomes stable when imaging, and the high efficiency has improved the ability of shooing of removal end equipment.
Description
Technical Field
The patent of the utility model relates to a voice coil motor technical field especially relates to a four-axis anti-shake voice coil motor for miniature camera in being arranged in removing end equipment.
Background
Because a Voice Coil Motor (VCM) has the advantages of simple structure, small size, low energy consumption, no noise, high acceleration, fast response speed, accurate displacement, low price and the like, the automatic focusing function of the Voice Coil Motor is still the scheme with the highest cost performance for the automatic focusing device of the camera at present. The optical lens is fixed on the voice coil motor driving carrier, the carrier serves as a power unit for lens movement, the voice coil motor carrier is connected with the shell through the elastic structure, and after the motor is electrified, the carrier linearly moves along the optical axis direction of the lens, so that the automatic focusing function is realized.
Because the existing anti-shake scheme of the mobile terminal camera equipment can only carry out shake balance in the horizontal direction, the high-end camera equipment can only realize 3-axis anti-shake by increasing shake balance in the vertical direction, and when the actual mobile terminal is used for shooting, the camera can rotate around the vertical axis except for shaking along 2 axes in the horizontal direction and 1 axis in the vertical direction, namely, the camera rotates around the optical axis.
Disclosure of Invention
The utility model discloses the technical problem that will solve can't eliminate a plurality of direction shake and rotatory blurred problem of formation of image that leads to among the prior art. Provides a four-axis anti-shake voice coil motor for a miniature camera,
for realizing the utility model discloses a technical scheme that the purpose adopted is:
the utility model provides a four-axis anti-shake voice coil motor for miniature camera, includes: the vibration-proof voice coil motor comprises a three-axis vibration-proof voice coil motor (1), a sealing bearing piece (2) and a single-axis rotating vibration-proof voice coil motor (3);
an imaging lens is fixed in the inner circle of the triaxial anti-shake voice coil motor (1); assembling and bonding a three-axis anti-vibration voice coil motor (1) on a sealing bearing piece (2);
the seal bearing piece (2) and the single-shaft rotation anti-vibration voice coil motor (3) are combined and bonded together to form a four-shaft anti-vibration voice coil motor.
Preferably, the middle of the sealing bearing piece (2) is provided with a light through hole (5), the bottom of the sealing bearing piece is provided with an avoiding groove (4), and the avoiding groove (4) is mutually buckled and bonded with an external connecting plate (6) on the single-shaft rotating anti-vibration voice coil motor (3); the seal bearing piece (2) is used for bearing the three-axis anti-shake voice coil motor (1).
Preferably, the single-shaft rotating anti-shake voice coil motor (3) mainly comprises an external connection board (6), a chip connection flexible circuit board (8), a chip carrier (9), a base (15) and a driving magnet (17);
the external connection connecting plate (6) is connected with the chip carrier (9) through the chip connection flexible circuit board (8); the chip carrier (9) and the base (15) are buckled with each other.
Preferably, the photosensitive chip (7) is welded on the surface of the chip carrier (9) and is used for imaging data acquisition; the chip connecting flexible circuit board (8) is of an L-shaped multi-bending structure, one end of the chip connecting flexible circuit board is welded on the chip carrier (9), the other end of the chip connecting flexible circuit board is welded on the external connecting plate (6), and the chip connecting flexible circuit board (8) provides a restraining force for the chip carrier (9) so as to ensure that the chip carrier (9) cannot rotate when the driving coil (14) is not electrified.
Preferably, at least three groups of ball slide rails (11) are arranged on the base (15), so that the chip carrier (9) is not easy to be eccentric in torsion, the chip carrier (9) and the base (15) are buckled with each other, a ball slide rail II (16) arranged on the back of the chip carrier (9) is buckled with the ball slide rail I (11), and balls (13) are arranged between the ball slide rail II (16) and the ball slide rail I (11) and used for supporting and restraining the chip carrier (9) and can stably rotate around the circle center of the slide rail.
Preferably, a plurality of groups of adsorption plates (12) are bonded on the base (15), at least two groups of driving coils (14) are arranged on the base (15) and bonded on the adsorption plates (12), and driving magnets (17) are arranged on the back surface of the chip carrier (9) corresponding to the driving coils (14); when the driving coil (14) is electrified, driving force acts on the driving magnet (17), the chip carrier (9) overcomes the constraint force generated by the chip connecting flexible circuit board (8) under the action of the traction force of the driving magnet (17), and the chip carrier (9) rotates around the center of the sliding rail.
Preferably, when the driving coil (14) is not electrified, the driving magnet (17) is attracted with the adsorption plate (12), meanwhile, the ball (13) is arranged between the chip carrier (9) and the base (15), the attraction force generated by the driving magnet (17) is balanced with the supporting force provided by the ball (13), and the ball (13) is prevented from being separated from the ball slide rail I (11) and the ball slide rail II (16), so that the chip carrier (9) is restrained, the chip carrier (9) is kept stable, and the deviation phenomenon is not easy to occur.
Preferably, be equipped with sensor element (10) on base (15), sensor element (10) are used for detecting the rotatory angle of chip carrier (9) drive sensitization chip (7), convert the angle that detects into the signal of telecommunication, and the current change through signal transmission adjustment drive coil (14) for sensitization chip (7) is accurate to reach required rotation angle, and then realizes the closed-loop control function.
Preferably, triaxial anti-shake voice coil motor can realize the removal of imaging lens in two directions of level X, Y, can also realize along the rotatory motion mode of axis of rotation to can reach 360 degrees states of inclining to the Z axle, at the in-process of shooing formation of image, because the deviation that the end removal of shooing caused, will be by the action of moving parts, according to the deviation direction and carry out reverse compensation, realize triaxial anti-shake.
The utility model has the advantages that:
the utility model discloses a rotatory anti-shake voice coil motor of unipolar and the shake of 1 axle in 2 axles on the balanced horizontal direction and the vertical direction of triaxial anti-shake voice coil motor to add around the rotatory anti-shake scheme of vertical axis, make the motor no matter be in the horizontal direction, corresponding shake compensation can all be carried out to vertical direction or vertical direction of rotation, thereby realize the purpose of 4 axles anti-shake, make to remove the end and make a video recording more clear that becomes, stable.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of the middle seal carrier of the present invention.
Fig. 3 is the utility model discloses well unipolar rotation anti-shake voice coil motor structure explosion chart.
Fig. 4 is the utility model discloses well rotatory anti-shake voice coil motor's of unipolar chip carrier rear view.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail with reference to the accompanying drawings 1-4. It should be understood that the specific embodiments described herein are for the purpose of illustration only and are not intended to limit the invention.
As shown in fig. 1: the utility model provides a miniature camera is with four-axis anti-shake voice coil motor, includes triaxial anti-shake voice coil motor 1, and sealed carrier 2 holds, unipolar rotation anti-shake voice coil motor 3. Triaxial anti-shake voice coil motor 1 attaches the mode of bonding through the lock, fixes imaging lens in the interior circle of triaxial anti-shake voice coil motor 1, 2 axles of motor horizontal direction, the shake compensation of 1 axle of vertical direction can be realized to triaxial anti-shake voice coil motor 1. Then, the three-axis anti-vibration voice coil motor 1 is assembled on a sealed carrier 2 and hardened after being subjected to glue dispensing treatment. And finally, assembling the assembly part and the single-shaft rotation anti-vibration voice coil motor 3 together, wherein the single-shaft rotation anti-vibration voice coil motor 3 realizes vibration compensation of a rotation shaft in the vertical direction. The four-axis anti-shake voice coil motor for the miniature camera is formed by the three components through hardening after the glue dispensing treatment. The applicant has applied for patent application on 22/03/2020, the patent application numbers are: 202010204762.9, this structure is not being discussed in this application.
As shown in fig. 2: seal carrier 2 is equipped with logical unthreaded hole 5 in the middle of lying, and the bottom is equipped with dodges groove 4, should dodge groove 4 and can be in the same place with the rotatory anti-shake external connecting plate 6 on the voice coil motor 3 of unipolar each other detains the bonding. The three-axis anti-vibration voice coil motor is used for connecting the three-axis anti-vibration voice coil motor 1 and the single-axis rotation anti-vibration voice coil motor 3, meanwhile, the path of incident light can be sealed, and the influence of stray light and foreign matters on imaging of the photosensitive chip is avoided.
As shown in fig. 3 and 4: the rotatory anti-shake voice coil motor of unipolar 3, its characteristic includes: the sensor comprises an external connecting plate 6, a photosensitive chip 7, a chip connecting flexible circuit board 8, a chip carrier 9, a sensor element 10, a first ball slide rail 11, an adsorption plate 12, balls 13, a driving coil 14, a base 15, a second ball slide rail 16 and a driving magnet 17.
The photosensitive chip 7 is welded on the surface of the chip carrier 9 and used for acquiring imaging data. One side of the chip connecting flexible circuit board 8 is welded on the chip carrier 9, and the other side is welded on the external connecting plate 6, so that the imaging acquisition data of the photosensitive chip 7 can be communicated with the mobile terminal equipment; meanwhile, the chip connection flexible circuit board 8 has a specific L-shaped multi-bending structure, so that a constraint force is provided for the chip carrier 9, and the chip carrier 9 is ensured not to rotate when the driving coil 14 is not electrified.
At least three groups of ball slide rails I11 are arranged on the base 15, so that the chip carrier 9 is ensured to be not easy to be eccentric when being twisted, when the chip carrier 9 and the base 15 are mutually buckled, the ball slide rails II 16 on the other side of the chip carrier 9 and the ball slide rails I11 are mutually buckled, and balls 13 are arranged in the middle of the chip carrier 9 and used for supporting and restraining the chip carrier 9. A plurality of groups of adsorption plates 12 are adhered on the base 15, at least two groups of driving coils 14 are glued on the adsorption plates 12, and a plurality of groups of driving magnets 17 are adhered on the corresponding positions of the chip carrier 9. When the driving coil 14 is not powered on, the driving magnet 17 is attracted to the adsorption plate 12, and meanwhile, the ball 13 is arranged between the chip carrier 9 and the base 15, so that the attraction of the driving magnet 17 and the supporting force provided by the ball 13 are balanced, and the ball 13 is prevented from being separated from the ball slide rail I11 and the ball slide rail II 16, so that the chip carrier 9 is restrained, the chip carrier 9 is kept stable, and the deviation phenomenon is not easy to occur. After the driving coil 14 is powered on, the chip carrier 9 overcomes the constraint force of the chip connecting with the flexible circuit board 8 under the action of the traction force of the driving magnet 17, so that the chip carrier 9 can stably rotate around the center of the slide rail.
Be equipped with sensor element 10 on the base 15, sensor element 10 is used for detecting the rotatory angle of chip carrier 9 drive sensitization chip 7, turns into the signal of telecommunication with the angle change that detects, and the electric current through signal of telecommunication transmission adjustment drive coil 14 for sensitization chip 7 accurately reaches required rotation angle, and then realizes the closed-loop control function.
In addition, the chip connection flexible circuit board 8 can be directly welded on the photosensitive chip 7 on one side, and welded on the external connection board 6 on the other side, so that the imaging acquisition data of the photosensitive chip 7 can be communicated with the mobile terminal device through the chip connection flexible circuit board 8, the flexible circuit board 8 can provide a constraint force for the chip carrier 9 through the photosensitive chip 7, and the chip carrier 9 can not rotate when the driving coil 14 is not electrified.
The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are only used for explaining the principles of the invention and should not be interpreted in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (9)
1. The utility model provides a four-axis anti-shake voice coil motor for miniature camera which characterized in that:
the method comprises the following steps: the vibration-proof voice coil motor comprises a three-axis vibration-proof voice coil motor (1), a sealing bearing piece (2) and a single-axis rotating vibration-proof voice coil motor (3);
an imaging lens is fixed in the inner circle of the triaxial anti-shake voice coil motor (1); assembling and bonding a three-axis anti-vibration voice coil motor (1) on a sealing bearing piece (2);
the seal bearing piece (2) and the single-shaft rotation anti-vibration voice coil motor (3) are combined and bonded together to form a four-shaft anti-vibration voice coil motor.
2. The four-axis anti-shake voice coil motor for the miniature camera according to claim 1, wherein: a light through hole (5) is formed in the middle of the sealing bearing piece (2), an avoiding groove (4) is formed in the bottom of the sealing bearing piece, and the avoiding groove (4) is mutually buckled and adhered with an external connecting plate (6) on the single-shaft rotating anti-vibration voice coil motor (3); the seal bearing piece (2) is used for bearing the three-axis anti-shake voice coil motor (1).
3. The four-axis anti-shake voice coil motor for the miniature camera according to claim 1, wherein: the single-shaft rotation anti-shake voice coil motor (3) mainly comprises an external connection connecting plate (6), a chip connection flexible circuit board (8), a chip carrier (9), a base (15) and a driving magnet (17);
the external connection connecting plate (6) is connected with the chip carrier (9) through the chip connection flexible circuit board (8);
the chip carrier (9) and the base (15) are buckled with each other.
4. The four-axis anti-shake voice coil motor for the miniature camera according to claim 3, wherein: the photosensitive chip (7) is welded on the surface of the chip carrier (9) and is used for acquiring imaging data; the chip connecting flexible circuit board (8) is of an L-shaped multi-bending structure, one end of the chip connecting flexible circuit board is welded on the chip carrier (9), the other end of the chip connecting flexible circuit board is welded on the external connecting plate (6), and the chip connecting flexible circuit board (8) provides a restraining force for the chip carrier (9) so as to ensure that the chip carrier (9) cannot rotate when the driving coil (14) is not electrified.
5. The four-axis anti-shake voice coil motor for the miniature camera according to claim 3, wherein: be equipped with at least three group ball slide rail one (11) on base (15), guarantee that chip carrier (9) twist reverse and be difficult for off-centre, chip carrier (9) and base (15) are detained each other, and ball slide rail two (16) that chip carrier (9) back has detain each other with ball slide rail one (11), is equipped with ball (13) in the middle of ball slide rail two (16) and ball slide rail one (11), is used for supporting and restraint chip carrier (9), can stably do rotary motion around the slide rail centre of a circle.
6. The four-axis anti-shake voice coil motor for the miniature camera according to claim 3, wherein: a plurality of groups of adsorption plates (12) are bonded on the base (15), at least two groups of driving coils (14) are arranged on the base (15) and bonded on the adsorption plates (12), and driving magnets (17) are arranged on the back surface of the chip carrier (9) corresponding to the driving coils (14); when the driving coil (14) is electrified, driving force acts on the driving magnet (17), the chip carrier (9) overcomes the constraint force generated by the chip connecting flexible circuit board (8) under the action of the traction force of the driving magnet (17), and the chip carrier (9) rotates around the center of the sliding rail.
7. The four-axis anti-shake voice coil motor for the miniature camera according to claim 3, wherein: when the driving coil (14) is not electrified, the driving magnet (17) can be attracted with the adsorption plate (12), meanwhile, the ball (13) is arranged between the chip carrier (9) and the base (15), the attraction force generated by the driving magnet (17) can be balanced with the supporting force provided by the ball (13), the ball (13) is prevented from being separated from the ball sliding rail I (11) and the ball sliding rail II (16), so that the chip carrier (9) is restrained, the chip carrier (9) is kept stable, and the deviation phenomenon is not easy to occur.
8. The four-axis anti-shake voice coil motor for the miniature camera according to claim 3, wherein: be equipped with sensor element (10) on base (15), sensor element (10) are used for detecting chip carrier (9) and drive the rotatory angle of sensitization chip (7), and the angle that will detect turns into the signal of telecommunication, and the current change through signal of telecommunication transmission adjustment drive coil (14) for sensitization chip (7) is accurate to reach required rotation angle, and then realizes the closed-loop control function.
9. The four-axis anti-shake voice coil motor for the miniature camera according to claim 1, wherein: three-axis anti-shake voice coil motor can realize the removal of imaging lens in two directions of level X, Y, can also realize along the rotatory motion mode of axis of rotation to can reach 360 degrees states of inclining in the Z axle, at the in-process of shooing formation of image, because the deviation that the end removal of shooing caused, will carry out reverse compensation according to the deviation direction by the action of moving parts under the effect of drive force, realize triaxial anti-shake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022991364.4U CN213817954U (en) | 2020-12-13 | 2020-12-13 | Four-axis anti-shake voice coil motor for miniature camera |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022991364.4U CN213817954U (en) | 2020-12-13 | 2020-12-13 | Four-axis anti-shake voice coil motor for miniature camera |
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| CN213817954U true CN213817954U (en) | 2021-07-27 |
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| CN202022991364.4U Active CN213817954U (en) | 2020-12-13 | 2020-12-13 | Four-axis anti-shake voice coil motor for miniature camera |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114125282A (en) * | 2021-11-16 | 2022-03-01 | 信利光电股份有限公司 | Anti-shake module and manufacturing method |
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2020
- 2020-12-13 CN CN202022991364.4U patent/CN213817954U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114125282A (en) * | 2021-11-16 | 2022-03-01 | 信利光电股份有限公司 | Anti-shake module and manufacturing method |
| CN114125282B (en) * | 2021-11-16 | 2023-11-28 | 信利光电股份有限公司 | Anti-shake module and manufacturing method |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A four axis anti Tiktok coil motor for micro camera Effective date of registration: 20220929 Granted publication date: 20210727 Pledgee: China Construction Bank Corporation Panjin branch Pledgor: Liaoning Zhonglan Photoelectric Technology Co.,Ltd. Registration number: Y2022210000157 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |