CN113258749A - Voice coil motor convenient to adjust and working method thereof - Google Patents
Voice coil motor convenient to adjust and working method thereof Download PDFInfo
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- CN113258749A CN113258749A CN202110792623.7A CN202110792623A CN113258749A CN 113258749 A CN113258749 A CN 113258749A CN 202110792623 A CN202110792623 A CN 202110792623A CN 113258749 A CN113258749 A CN 113258749A
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- adjusting
- ring
- voice coil
- lens carrier
- coil motor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
- H02K41/02—Linear motors; Sectional motors
- H02K41/035—DC motors; Unipolar motors
- H02K41/0352—Unipolar motors
- H02K41/0354—Lorentz force motors, e.g. voice coil motors
- H02K41/0356—Lorentz force motors, e.g. voice coil motors moving along a straight path
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/026—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using retaining rings or springs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention relates to a voice coil motor convenient to adjust and a working method thereof, wherein the voice coil motor comprises a base and a shell which are fixedly connected with each other, a lens carrier embedded between the base and the shell, a lower elastic sheet positioned on the lower end surface of the lens carrier, a coil wound on the outer ring of the lens carrier and magnets uniformly distributed in the circumferential direction of the coil, wherein the lens carrier is annular and is provided with an annular bottom connection ring and four limit blocks along the circumferential direction of the outer ring of the lens carrier, the four limit blocks are arranged at intervals to form an upper limit ring, the upper limit ring and the bottom connection ring are parallel to each other, and an adjusting part is arranged between the two limit blocks, wherein the adjusting part is suitable for adjusting the pressing force of the upper elastic sheet. Through the setting of regulating part, the distance of regulating part in order to adjust the relative locating plate of follow-up slide, and then realizes changing the elasticity of adjusting spring and joint spring, adjusts the elasticity of shell fragment when providing a good damping sense for last shell fragment to prolong holistic life.
Description
Technical Field
The invention relates to a voice coil motor, in particular to a voice coil motor convenient to adjust.
Background
The Chinese patent application No. CN201620477088.0 discloses a voice coil motor, namely, the voice coil motor comprises a shell and a base connected with the shell, the upper end surface of the shell is provided with a central through hole, a lens carrier is arranged in the central through hole, 4 corners of the shell are provided with triangular platforms, an outer frame of an upper elastic sheet is arranged on the triangular platform, and an inner ring of the upper elastic sheet is arranged at the top end of the lens carrier; the outer frame of the lower elastic sheet is arranged on the base, and the inner ring of the lower elastic sheet is arranged at the bottom end of the lens carrier; the base is provided with a plurality of reinforcing ribs, and the reinforcing ribs correspond to the positioning table at the bottom end of the lens carrier; two adjacent corners of the base are respectively provided with a pin in an integrated manner; the utility model has the advantages of simple structure bears higher working strength, and imaging quality is good.
The voice coil motor has the following disadvantages: under the long-time use, the folding position of the upper elastic sheet can cause strain.
Disclosure of Invention
The present invention is directed to a voice coil motor that is easy to adjust to solve the above problems.
In order to achieve the above object, an embodiment of the present invention provides a voice coil motor convenient for adjustment, including a base and a housing fixedly connected to each other, a lens carrier embedded between the base and the housing, a lower elastic sheet located at a lower end surface of the lens carrier and an upper elastic sheet located at an upper end surface of the lens carrier, a coil wound around an outer ring of the lens carrier, and magnets uniformly distributed around a circumference of the coil,
the lens carrier is annular and is provided with an annular bottom connecting ring and four limiting blocks along the circumferential direction of an outer ring of the lens carrier, the four limiting blocks are arranged at intervals and form an upper limiting ring, the upper limiting ring and the bottom connecting ring are parallel to each other, and
an adjusting part is arranged between the two limiting blocks, wherein
The adjusting part is suitable for adjusting the pressing force of the upper elastic sheet.
Preferably, the adjusting part comprises an adjusting stud which is in threaded connection with the shell, and a follow-up sliding plate and an adjusting spring which are rotatably connected to the lower end part of the adjusting stud;
the lower end of the adjusting spring is fixed on the upper end face of the follow-up sliding plate, and the upper end of the adjusting spring is fixed on the lower end face of the upper elastic sheet.
Preferably, the housing comprises a sheet body formed by circumferential surrounding and a shielding ring positioned on the upper surface of the sheet body, a plurality of shielding sheets extend downwards along the edge of the shielding ring, and each shielding sheet is positioned between two limiting blocks;
the follow-up sliding plate is in a fan ring shape, and the inner ring is attached to the shielding piece.
Preferably, the shielding piece is provided with an arc-shaped through groove from the bottom end to the top, and dovetail grooves communicated with the arc-shaped through groove and the arc-shaped through groove are respectively arranged at the two ends of the arc-shaped through groove in a mirror image manner, and
the end part mirror image of the follow-up sliding plate is provided with a dovetail block matched with the dovetail groove, the follow-up sliding plate extends into the arc-shaped through groove, and the dovetail block can be clamped in the dovetail groove in a sliding mode.
Preferably, the upper spring plate comprises an upper inner circular ring and an upper outer circular ring, the upper inner circular ring is provided with four contact plates, four corners of the upper outer circular ring are provided with positioning plates, and each contact plate is jointed with the positioning plates on two sides of the contact plate; and
the positioning plate is provided with an oval through hole, and the upper end of the adjusting spring is propped against the lower surface of the positioning plate.
Preferably, the adjusting spring comprises a plurality of springs;
the two end parts of the positioning plate are respectively provided with three adjusting springs, and
the adjusting part also comprises a plurality of joint springs which are arranged in a straight line, wherein
The three adjusting springs positioned on the two sides are respectively jointed into a line through a plurality of jointing springs which are arranged in a line.
Preferably, three adjusting springs are stacked to form a regular triangle distribution, one adjusting spring is positioned at the end part of the oval through hole, and the other two adjusting springs are arranged on two sides of the end part of the oval through hole in a mirror image manner; and
the joint springs which are arranged in a straight line are propped against the two sides of the oval through hole.
The invention has the following beneficial effects:
(1) the up-and-down adjustment effect of the voice coil motor is realized through the mutually matched base, the shell, the lens carrier, the upper elastic sheet, the lower elastic sheet and the magnet;
(2) through the arrangement of the adjusting part, the adjusting part adjusts the distance between the follow-up sliding plate and the positioning plate, so that the elastic force of the adjusting spring and the joint spring is changed, a good damping feeling is provided for the upper elastic sheet, and meanwhile, the elastic force of the upper elastic sheet is adjusted, and the service life of the whole body is prolonged;
(3) through the inslot that shelters from the piece setting between ring and the oval through-hole in last, and then make the shell fragment carry out the up-and-down motion in fixed range, play the motion range of injecing the lens carrier and carry out the effect of fixing a position to sheltering from the piece, improve voice coil motor overall structure stability.
The invention also provides an adjusting method of the voice coil motor convenient to adjust, and S1, the adjusting stud is rotated and drives the follow-up sliding plate to press downwards, so that the adjusting spring is in a stretching state.
The invention has the beneficial effects that: the operation method is simple and quick, and the elastic adjustment of the upper elastic sheet is well realized.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 illustrates an exploded view of a voice coil motor that facilitates adjustment provided by embodiments of the present invention;
FIG. 2 illustrates a schematic structural diagram of a lens carrier provided by an embodiment of the present invention;
FIG. 3 is a schematic view showing the engagement of the adjustment portion and the shielding plate provided by the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a housing provided by an embodiment of the invention;
FIG. 5 is a schematic view of a partial structure of a shielding sheet according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a follower skateboard provided by an embodiment of the invention;
fig. 7 is a schematic structural diagram of an upper spring plate according to an embodiment of the present invention;
fig. 8 shows a schematic structural diagram of the upper spring plate, the adjusting spring and the engaging spring according to the embodiment of the present invention.
In the figure:
1. a base;
2. a shell 201, a sheet body 202 and a shielding ring;
203. a shielding piece, 2031, an arc through groove, 2032 and a dovetail groove;
3. a lens carrier 301, a bottom connecting ring 302 and a limiting block;
4. a lower spring plate;
5. the spring plate comprises an upper spring plate 501, an upper inner circular ring 502, an upper outer circular ring 503, a contact plate 504, a positioning plate 505 and an oval through hole;
6. a coil 7 and a magnet;
8. adjusting part 801, adjusting stud, 802, follow-up sliding plate, 8021, dovetail block, 803, adjusting spring, 804 and joint spring.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the prior art, the lens carrier 3 cuts the magnetic induction line up and down in the voice coil motor, and under long-time use, strain can appear in the folding position of the upper elastic sheet 5, which greatly affects the service life of the voice coil motor.
Example one
As shown in fig. 1-8, the present invention provides a voice coil motor convenient for adjustment, which includes a base 1 and a casing 2 fixedly connected to each other, the base 1 and the casing 2 are mutually embedded to form a main body of the voice coil motor convenient for adjustment, and the main body of the voice coil motor has good supporting effect and bearing effect; the voice coil motor convenient to adjust further comprises a lens carrier 3 embedded between the base 1 and the shell 2, an upper elastic sheet 5 located on the upper end face of the lens carrier 3, a lower elastic sheet 4 located on the lower end face of the lens carrier 3, a coil 6 wound on the outer ring of the lens carrier 3 and magnets 7 uniformly distributed on the circumference of the coil 6, wherein the magnets 7 are in a trapezoidal column shape, and the shapes of the magnets 7 are matched with the shell 2 and the base 1, so that the magnets 7 are stably arranged in the shell 2 and the base 1; the lens carrier 3 repeatedly moves up and down between the base 1 and the shell 2, and the lens carrier 3 moves up and down through the coil 6 wound on the outer ring of the lens carrier 3 and the magnets 7 uniformly distributed on the circumference of the coil 6 so as to cut a magnetic induction line; and the lens carrier 3 has restoring force through the upper elastic sheet 5 positioned on the upper end surface of the lens carrier 3 and the lower elastic sheet 4 positioned on the lower end surface of the lens carrier 3, so that the lens carrier 3 can continuously perform the up-and-down cutting magnetic induction line movement between the base 1 and the shell 2.
Because the upper elastic sheet 5 positioned on the upper end surface of the lens carrier 3 and the lower elastic sheet 4 positioned on the lower end surface of the lens carrier 3 play a role in restoring the lens carrier 3, the folding position of the upper elastic sheet 5 can be strained under long-time use, and the service life of the voice coil motor is greatly influenced; therefore, the lens carrier 3 is annular and is provided with an annular bottom connecting ring 301 and four limiting blocks 302 along the circumferential direction of the outer ring of the lens carrier, the four limiting blocks 302 are arranged at intervals and form an upper limiting ring, and the upper limiting ring and the bottom connecting ring 301 are parallel to each other; because the upper limiting ring and the bottom connecting ring 301 protrude in parallel, a groove is formed between the bottom connecting ring 301 and the upper limiting ring, so that the coil 6 can be clamped in the groove, the coil 6 is fixed in the groove, the coil 6 is prevented from falling off, and the overall stability and the connection strength of the voice coil motor are improved; the magnet 7 is arranged outside the coil 6 and is arranged in the shell 2, a step table is arranged on the shell 2, and the magnet 7 is fixed below the step table to prevent the magnet 7 from deviating and avoid the influence of the deviation of the magnet 7 on the voice coil motor; an adjusting part 8 is arranged between the two limiting blocks 302, wherein the adjusting part 8 is suitable for adjusting the pressing force of the upper elastic sheet 5, and the lens carrier 3 provides a good damping feeling for the upper elastic sheet 5 when the upper elastic sheet 5 moves along the upper and lower cutting magnetic induction lines by adjusting the pressing force of the upper elastic sheet 5, and the process of restoring the upper elastic sheet 5 is smooth, so that the effect of prolonging the service life of the upper elastic sheet 5 is realized. Synchronously, the upper elastic sheet 5 is very easy to cause transition deformation in the continuous deformation process of the upper elastic sheet 5, so that the upper elastic sheet 5 cannot be restored, and the transition deformation generated by the upper elastic sheet 5 can be offset synchronously by means of the adjustment of the adjusting part 8.
Meanwhile, a seat is arranged between the two limit blocks 302 and is positioned at four corners of the base 1, the shell 2 comprises a sheet body 201 formed by surrounding in the circumferential direction and a shielding ring 202 positioned on the upper surface of the sheet body 201, a plurality of shielding sheets 203 extend downwards along the edge of the shielding ring 202, and each shielding sheet 203 is positioned on the seat between the two limit blocks 302; the shielding piece 203 is in a fan ring shape, the inner ring is attached to the seat, the shielding piece 203 is limited through the seat, meanwhile, the shielding piece 203 is attached to the seat, and therefore the stability and the connection strength of the voice coil motor structure are improved.
In order to prolong the service life of the upper spring plate 5 and further prolong the service life of the voice coil motor, an adjusting part 8 is arranged between the two limiting blocks 302, the adjusting part 8 comprises an adjusting stud 801 which is in threaded connection with the shell 2, and a follow-up sliding plate 802 and an adjusting spring 803 which are in rotary connection with the lower end part of the adjusting stud 801; the follow-up sliding plate 802 is in a fan ring shape, the inner ring is attached to the shielding piece 203, the shielding piece 203 is upwards provided with an arc through groove 2031 from the bottom end, two ends of the arc through groove 2031 are respectively provided with a dovetail groove 2032 communicated with the arc through groove 2031 in a mirror image manner, the end part of the follow-up sliding plate 802 is provided with a dovetail block 8021 matched with the dovetail groove 2032 in a mirror image manner, the follow-up sliding plate 802 extends into the arc through groove 2031, and the dovetail block 8021 is slidably clamped in the dovetail groove 2032; through the cooperation setting of forked tail piece 8021 and dovetail 2032 for follow-up slide 802 can slide from top to bottom along dovetail 2032, and follow-up slide 802 threaded connection is on adjusting stud 801 and follow-up slide 802 inner circle and shielding piece 203 laminating, through rotating adjusting stud 801, makes follow-up slide 802 inner circle supported and can't rotate, consequently rotates adjusting stud 801 and makes follow-up slide 802 realize carrying out up-and-down motion along dovetail 2032.
Meanwhile, the lower end of the adjusting spring 803 is fixed on the upper end face of the follow-up sliding plate 802, and the upper end is fixed on the lower end face of the upper spring plate 5; when the adjusting stud 801 is rotated, the follow-up sliding plate 802 moves downwards along the dovetail groove 2032, and then the adjusting spring 803 is stretched, so that the upper elastic sheet 5 obtains a downward elastic force, and further the elastic force needs to be overcome by giving a larger force to the upper elastic sheet 5, the elastic force required in the downward recovery and reset process of the upper elastic sheet 5 is reduced, and therefore the upper elastic sheet 5 achieves the effect that the deformation is difficult to occur and the reset is easy to recover, and the service life of the upper elastic sheet 5 is prolonged.
In order to realize that the adjusting part 8 can provide a stable elastic force for the upper elastic sheet 5, therefore, the adjusting part 8 further comprises a plurality of joint springs 804 arranged in a line, the joint springs 804 are also arranged on the follow-up sliding plate 802, and the follow-up sliding plate 802 is correspondingly provided with adaptive spring slots for each spring, when the joint springs 804 and the adjusting springs 803 are compressed to adjust the elastic force, at most, the end fixing sheets of the joint springs 804 and the end fixing sheets of the adjusting springs 803 can be completely pressed into the corresponding spring slots. Meanwhile, six adjusting springs 803 and a plurality of connecting springs 804 are arranged on one follow-up sliding plate 802, the adjusting springs 803 are divided into two groups, each group is three, the adjusting springs are respectively arranged on two sides of the follow-up sliding plate 802, the three adjusting springs 803 are piled to form a regular triangle distribution, the three adjusting springs 803 on two sides are respectively connected through a plurality of connecting springs 804 which are arranged in a straight line to form a line, the upper ends of the connecting springs 804 are fixed on the lower end face of the upper elastic sheet 5, the connecting springs 804 and the six adjusting springs 803 are connected to form a line, so that the fixing effect of the adjusting springs 803 and the connecting springs 804 on the upper elastic sheet 5 is improved, and the position of the follow-up sliding plate 802 is adjusted to correspondingly adjust the elasticity of the upper elastic sheet 5.
In order to adjust the position of the follow-up sliding plate 802 to correspondingly adjust the elastic force of the upper elastic sheet 5, and further, the voice coil motor is provided with the upper elastic sheet 5 matched with the adjusting part 8, the matching means that the downward elastic force generated by the spring can act on the upper elastic sheet 5 as much as possible by adjusting the adjusting part 8, so that the service life of the upper elastic sheet 5 is prolonged, and the service life of the voice coil motor is prolonged; the upper spring plate 5 comprises an upper inner circular ring 501 and an upper outer circular ring 502, the upper inner circular ring 501 is provided with four contact plates 503, four corners of the upper outer circular ring 502 are provided with positioning plates 504, and each contact plate 503 is jointed with the positioning plates 504 on two sides of the contact plate; the upper inner circular ring 501 is matched with the lens carrier 3 in the voice coil motor, and the matching means that the upper elastic sheet 5 can be pushed to move when the lens carrier 3 moves to cut the magnetic induction lines upwards; the upper outer ring 502 is adapted to fit the base 1 and the housing 2, and the upper outer ring 502 is stably provided between the base 1 and the housing 2, and is not likely to shift or shake.
And a positioning plate 504 is arranged at four corners of the upper outer ring 502, the upper inner ring 501 is provided with four contact plates 503, and each contact plate 503 is jointed with the positioning plates 504 at two sides thereof; the contact plate 503 is located between the upper inner circular ring 501 and the upper outer circular ring 502, the contact plate 503 contacts the upper inner circular ring 501 and the contact plate 503 does not contact the upper outer circular ring 502, so that when the lens carrier 3 performs the up-and-down cutting magnetic induction line motion, the contact plate 503 improves the supporting strength of the upper inner circular ring 501, thereby enabling most of the elastic force to act on two sides of the positioning plate 504, and further enabling the positions of the upper elastic sheet 5 which are deformed and bent to be located on two sides of the positioning plate 504; meanwhile, the positioning plates 504 are arranged at four corners of the upper outer square ring 502, the adjusting part 8 is arranged below the positioning plates 504, and the fixing plates at the end parts of the adjusting springs 803 and the connecting springs 804 are fixed at the bottom of the positioning plates 504, so that the elastic force generated by the springs can directly act on the positioning plates 504 when the elastic force of the springs is changed, a good damping feeling can be directly provided for the upper elastic sheet 5 when the lens carrier 3 moves, and the service life of the whole voice coil motor is further prolonged.
In order to further change the elastic force of the adjusting spring 803 and the engaging spring 804, the elastic force generated by the springs can directly act on the positioning plate 504, so that the positioning plate 504 is provided with an oval through hole 505, and the upper end of the adjusting spring 803 abuts against the lower surface of the positioning plate 504; the oval through hole 505 is used for reducing the weight of the upper spring plate 5 and the overall weight of the voice coil motor, so that the voice coil motor has a better application environment; three adjusting springs 803 are respectively arranged at two ends of the positioning plate 504, the three adjusting springs 803 are piled to form a regular triangle distribution, one adjusting spring 803 is positioned at the end of the oval through hole 505, and the other two adjusting springs are arranged at two sides of the end of the oval through hole 505 in a mirror image manner; the adjusting springs 803 distributed in a regular triangle effectively support the oval through hole 505, and the elastic force generated by the adjusting springs 803 is more directly acted on the upper elastic sheet 5; the connecting springs 804 arranged in a straight line are abutted against two sides of the oval through hole 505, and the fixing piece at the end part of the connecting springs 804 is larger than the diameter of the oval through hole 505, so that the connecting springs 804 arranged in a straight line abut against two sides of the oval through hole 505 to also play a supporting role for the oval through hole 505, and the elastic force generated by the adjusting springs 803 is more directly acted on the upper elastic sheet 5, thereby realizing the adjustment of the elastic force of the upper elastic sheet 5.
In summary, the working principle of the present embodiment is as follows:
by twisting the part of the adjusting stud 801 exposed outside the housing 2, the follower sliding plate 802 in the adjusting part 8 slides downwards along the dovetail groove 2032 arranged in the shielding piece 203, and the adjusting spring 803 and the joint spring 804 fixed between the upper elastic sheet 5 and the follower sliding plate 802 are stretched, so that the adjusting spring 803 and the joint spring 804 give a downward elastic force to the upper elastic sheet 5; therefore, when the lens carrier 3 is cut up and down to perform magnetic induction line motion, a good damping effect is provided for the upper elastic sheet 5, and the process of restoring the reset is smooth, so that the service life of the upper elastic sheet 5 is prolonged, and the service life of the whole voice coil motor is finally prolonged.
Example two
The second embodiment is carried out on the basis of the first embodiment.
The invention also provides a voice coil motor adjusting method convenient to adjust;
s1, the adjusting stud 801 is rotated and the follow-up sliding plate 802 is driven to press downwards, so that the adjusting spring 803 is in a stretching state.
The height position of the follow-up sliding plate 802 is changed by adjusting the adjusting stud 801, and then the adjusting spring 803 is stretched, so that the elastic force formed between the adjusting spring 803 and the upper elastic sheet 5 is increased, and further, when the lens carrier 3 performs up-and-down cutting magnetic induction line motion, the unrecoverable deformation is not easy to occur, and therefore, the service life of the voice coil motor is prolonged.
The working method of the voice coil motor is simple and rapid in operation method, elastic adjustment of the upper elastic sheet 5 is well achieved, the service life of the upper elastic sheet 5 is prolonged, cost is reduced, and economic benefits are improved.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It should be noted that: like reference numbers and letters in the figures refer to like items and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A voice coil motor convenient for adjustment comprises a base and a shell which are fixedly connected with each other, a lens carrier embedded between the base and the shell, a lower elastic sheet positioned on the lower end surface of the lens carrier, an upper elastic sheet positioned on the upper end surface of the lens carrier, a coil wound on the outer ring of the lens carrier and magnets uniformly distributed in the circumferential direction of the coil,
the lens carrier is annular and is provided with an annular bottom connecting ring and four limiting blocks along the circumferential direction of an outer ring of the lens carrier, the four limiting blocks are arranged at intervals and form an upper limiting ring, the upper limiting ring and the bottom connecting ring are parallel to each other, and
an adjusting part is arranged between the two limiting blocks, wherein
The adjusting part is suitable for adjusting the pressing force of the upper elastic sheet.
2. The voice coil motor for facilitating adjustment of claim 1,
the adjusting part comprises an adjusting stud which is in threaded connection with the shell, and a follow-up sliding plate and an adjusting spring which are in rotary connection with the lower end part of the adjusting stud;
the lower end of the adjusting spring is fixed on the upper end face of the follow-up sliding plate, and the upper end of the adjusting spring is fixed on the lower end face of the upper elastic sheet.
3. The voice coil motor for facilitating adjustment of claim 2,
the shell comprises a sheet body formed by circumferential surrounding and a shielding ring positioned on the upper surface of the sheet body, a plurality of shielding sheets extend downwards along the edge of the shielding ring, and each shielding sheet is positioned between two limiting blocks;
the follow-up sliding plate is in a fan ring shape, and the inner ring is attached to the shielding piece.
4. The voice coil motor for facilitating adjustment of claim 3,
the shielding piece is upwards provided with an arc-shaped through groove from the bottom end of the shielding piece, the two ends of the arc-shaped through groove are respectively provided with a dovetail groove communicated with the arc-shaped through groove in a mirror image manner, and
the end part mirror image of the follow-up sliding plate is provided with a dovetail block matched with the dovetail groove, the follow-up sliding plate extends into the arc-shaped through groove, and the dovetail block can be clamped in the dovetail groove in a sliding mode.
5. The voice coil motor for facilitating adjustment of claim 4,
the upper elastic sheet comprises an upper inner circular ring and an upper outer circular ring, the upper inner circular ring is provided with four contact plates, four corners of the upper outer circular ring are provided with positioning plates, and each contact plate is jointed with the positioning plates on two sides of the contact plate; and
the positioning plate is provided with an oval through hole, and the upper end of the adjusting spring is propped against the lower surface of the positioning plate.
6. The voice coil motor for facilitating adjustment of claim 5,
the adjusting spring comprises a plurality of adjusting springs;
the two end parts of the positioning plate are respectively provided with three adjusting springs, and
the adjusting part also comprises a plurality of joint springs which are arranged in a straight line, wherein
The three adjusting springs positioned on the two sides are respectively jointed into a line through a plurality of jointing springs which are arranged in a line.
7. The voice coil motor for facilitating adjustment of claim 6,
the three adjusting springs are stacked to form regular triangle distribution, one adjusting spring is positioned at the end part of the oval through hole, and the other two adjusting springs are arranged on two sides of the end part of the oval through hole in a mirror image manner; and
the joint springs which are arranged in a straight line are propped against the two sides of the oval through hole.
8. An adjustment method of a voice coil motor facilitating adjustment according to claim 7,
and S1, rotating the adjusting stud and driving the follow-up sliding plate to press downwards so as to enable the adjusting spring to be in a stretching state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792623.7A CN113258749B (en) | 2021-07-14 | 2021-07-14 | Voice coil motor convenient to adjust and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110792623.7A CN113258749B (en) | 2021-07-14 | 2021-07-14 | Voice coil motor convenient to adjust and working method thereof |
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| Publication Number | Publication Date |
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| CN113258749A true CN113258749A (en) | 2021-08-13 |
| CN113258749B CN113258749B (en) | 2021-11-30 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058758A (en) * | 2004-08-05 | 2012-03-22 | Mitsumi Electric Co Ltd | Lens driving device and camera |
| US20160118873A1 (en) * | 2014-10-24 | 2016-04-28 | Hon Hai Precision Industry Co., Ltd. | Voice coil motor |
| CN206820631U (en) * | 2017-05-17 | 2017-12-29 | 江西森阳科技股份有限公司 | A kind of new shell fragment of voice coil motor |
| CN111175964A (en) * | 2019-12-12 | 2020-05-19 | 东莞市亚登电子有限公司 | Liquid lens focusing and anti-shake device, camera module and electronic equipment |
-
2021
- 2021-07-14 CN CN202110792623.7A patent/CN113258749B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012058758A (en) * | 2004-08-05 | 2012-03-22 | Mitsumi Electric Co Ltd | Lens driving device and camera |
| US20160118873A1 (en) * | 2014-10-24 | 2016-04-28 | Hon Hai Precision Industry Co., Ltd. | Voice coil motor |
| CN206820631U (en) * | 2017-05-17 | 2017-12-29 | 江西森阳科技股份有限公司 | A kind of new shell fragment of voice coil motor |
| CN111175964A (en) * | 2019-12-12 | 2020-05-19 | 东莞市亚登电子有限公司 | Liquid lens focusing and anti-shake device, camera module and electronic equipment |
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| CN113258749B (en) | 2021-11-30 |
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Effective date of registration: 20220711 Address after: 213000 Panjia industrial concentration area, Xueyan Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: Changzhou sanghao vehicle parts Co.,Ltd. Patentee after: Suzhou Xinyi system integration Co., Ltd Address before: 213000 Panjia industrial concentration area, Xueyan Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: Changzhou sanghao vehicle parts Co.,Ltd. |