CN112946972B

CN112946972B - Stabilizing mechanism of driving device, aperture assembly, driving and image pickup device, and electronic apparatus

Info

Publication number: CN112946972B
Application number: CN202110242069.5A
Authority: CN
Inventors: 靖二勇; 褚咏贞
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2022-07-01
Anticipated expiration: 2041-03-04
Also published as: CN112946972A

Abstract

The invention belongs to the technical field of electronic equipment, and particularly relates to a stabilizing mechanism of a driving device, an aperture assembly, a camera device and electronic equipment. The driving device overcomes the defects of unstable motion and the like of the existing driving device. This drive arrangement's stabilizing mean, drive arrangement place in the framework and rotate the turning block of connecting with the framework including installing the framework on the iris diaphragm base in, are connected with the swing cantilever at the front end of turning block, install the drive magnetite on the turning block, this stabilizing mean is including stabilizing the magnetic conduction piece, keeps away from a terminal surface interval distribution of swing cantilever with the drive magnetite, stabilizes the magnetic conduction piece and is used for providing a continuous adsorption affinity to the drive magnetite. The invention has the advantages that: thereby stabilize magnetic conductive plate and provide a continuous adsorption affinity to the drive magnetite and guarantee drive arrangement motion stability, finally make to shelter from the stable motion of light ring.

Description

Stabilizing mechanism of driving device, aperture assembly, driving and image pickup device, and electronic apparatus

Technical Field

The invention belongs to the technical field of electronic equipment, and particularly relates to a stabilizing mechanism of a driving device, an aperture assembly, a driving and shooting device and electronic equipment.

Background

In the fields of cameras, monitoring, security, and the like, these devices include a camera function. The built-in camera module is a common component for shielding the diaphragm, and the shielding diaphragm is driven by an electromagnetic driving mode.

Under the drive of the traditional electromagnetic drive mode, the phenomenon that the shading aperture is unstable when moving also exists due to the instability of the electromagnetic drive mode.

In view of the above, there is a need for improving the structure of the driving device in order to solve the above-mentioned technical problems.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a stabilizing mechanism of a driving device, a diaphragm assembly, a driving and imaging device, and an electronic apparatus, which can solve the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

this drive arrangement's stabilizing mean, drive arrangement place in the framework and with the framework rotate the turning block of being connected including installing the framework on the iris diaphragm base in, be connected with the swing cantilever at the front end of turning block, install the drive magnetite on the turning block, this stabilizing mean includes:

and the stable magnetic conducting sheet and one end face of the driving magnet, which is far away from the swinging cantilever, are distributed at intervals, and the stable magnetic conducting sheet is used for providing a continuous magnetic adsorption force for the driving magnet.

In the stabilizing mechanism of the driving device, one surface of the stabilizing magnetic conductive sheet close to the driving magnet is an adsorption plane, and the area of the adsorption plane is greater than or equal to the area of one end face of the driving magnet.

In the stabilizing mechanism of the driving device, the adsorption plane is a rectangular plane, and one end surface of the driving magnet is a rectangular plane.

In the stabilizing mechanism of the driving device, the frame body is fixed in the mounting groove on the iris diaphragm base, and the stabilizing magnetic conductive plate is fixed in the mounting groove.

In the stabilizing mechanism of the driving device, two positioning notches which are distributed oppositely are arranged on the groove wall of the mounting groove, and two ends of the stabilizing magnetic-conducting sheet are clamped in the positioning notches one by one.

In the stabilizing mechanism of the driving device, the surface of the stabilizing magnetic conducting sheet far away from the driving magnet and the groove wall of the mounting groove form an avoiding space.

In the stabilizing mechanism of the driving device, one side surface of the frame body is provided with an opening, one end of the frame body, which is far away from the opening, is provided with a rear opening, the inner top surface and the inner bottom surface of the frame body are respectively provided with a rotating shaft mounting hole, the axial leads of the two rotating shaft mounting holes are overlapped, the upper surface and the lower surface of the rotating block are respectively provided with a rotating shaft body, one rotating shaft body is inserted into the rotating shaft mounting hole on the inner top surface, and the other rotating shaft body is inserted into the rotating shaft mounting hole on the lower surface;

the rear side surface of the rotating block is provided with an installation blind hole extending towards the front side surface of the rotating block, the driving magnet enters from the orifice of the installation blind hole and is fixed in the installation blind hole, and the stable magnetic conduction sheet is positioned outside the orifice of the installation blind hole.

The rear opening is opposite to the stable magnetic conduction sheet.

The invention also discloses an iris diaphragm assembly which is provided with the stabilizing mechanism of the driving device.

The invention also discloses a lens driving device, which comprises a device base, wherein a carrier is arranged on the device base, and a shell is fixed on the base, and the shell is provided with the iris diaphragm assembly.

The invention also discloses an image pickup device which is provided with the lens driving device.

The invention also discloses electronic equipment with the camera device.

Compared with the prior art, the invention has the advantages that:

1. thereby stabilize the magnetic conduction piece and provide a continuous magnetic adsorption power to the drive magnetite and guarantee drive arrangement motion stability, finally make to shelter from the stable motion of light ring.

2. The structure of the rotating shaft mounting hole and the rotating shaft body can ensure the rotating stability of the rotating block, and the motion stability of the driving device is further improved.

3. The design of the rear opening and the installation blind hole can prevent the stable magnetic conduction sheet and the drive magnet from being separated, so that the adsorption force is further improved, and the motion stability of the drive device is ensured.

Drawings

Fig. 1 is a schematic perspective view of a base with a cover according to the present invention.

Fig. 2 is a schematic perspective view of a base provided by the present invention.

Fig. 3 is a schematic view of another perspective structure of the base provided by the present invention.

Fig. 4 is a schematic view of a cover structure provided in the present invention.

Fig. 5 is a schematic view of the fitting state structure of the mounting shaft and the reinforcing part of the cover body provided by the invention.

Fig. 6 is an exploded view of the iris diaphragm assembly provided in the present invention.

Fig. 7 is a schematic view of a three-dimensional structure of a shading diaphragm provided by the present invention.

FIG. 8 is a schematic view of the sheet-like body in a shielding position according to the present invention.

FIG. 9 is a schematic structural view of the sheet-like body provided by the present invention in an unshielded position.

FIG. 10 is a schematic structural view of the iris diaphragm provided in the present invention with the base removed.

Fig. 11 is a schematic sectional view taken along line a-a in fig. 10.

Fig. 12 is a schematic structural diagram of a driving device provided by the present invention.

Fig. 13 is a schematic structural diagram of another viewing angle driving apparatus provided in the present invention.

Fig. 14 is a schematic perspective view of an outer frame according to the present invention.

Fig. 15 is a schematic view of another perspective structure of the outer frame according to the present invention.

Fig. 16 is a schematic structural diagram of a turning block provided by the invention.

Fig. 17 is a schematic diagram of a circuit board structure provided by the present invention.

Fig. 18 is a schematic structural diagram of the second embodiment of the present invention.

FIG. 19 is a schematic diagram of a third structure of the present invention.

Fig. 20 is a schematic structural diagram of a sixth embodiment of the present invention.

Fig. 21 is a schematic structural diagram of a seventh embodiment of the present invention.

Fig. 22 is an eighth schematic structural diagram of the embodiment of the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 2 and 3, the base a of the iris diaphragm includes a block-shaped base 10, the block-shaped base 10 is rectangular to meet the installation requirement, and a first light path hole 100 penetrating through the block-shaped base 10 in the thickness direction is formed in the block-shaped base 10. The first light path hole 100 is a circular through hole to facilitate the passage of light.

As shown in fig. 2 and fig. 6, the base further includes a mounting groove 101, and a bearing surface 102 disposed in the thickness direction of the block-shaped base 10, wherein the mounting groove 101 is used for mounting the driving device 2 and the stabilizing mechanism 3; the mounting groove 101 is directly designed on the bearing surface 102, after the driving device 2 is mounted in the mounting groove 101, the distance between the axial direction of the first light path hole 100 and the first light path hole 100 is greatly reduced by the shading diaphragm 4 connected with the driving device 2, the shading flaw of the shading diaphragm 4 is perfectly solved by reducing the distance, the shading diaphragm 4 is rotatably connected with the base a of the variable diaphragm, and the compactness of the whole structure is further improved, so that the base of the variable diaphragm is smaller in volume, and the small-volume mounting requirement of the limited mounting space in the fields of cameras, monitoring, security protection and the like is met; secondly, the installation groove 101 is designed, so that the drive device 2 can be conveniently and fixedly installed in an embedded mode, the installation difficulty is reduced, the installation efficiency is further improved, and the cost for installing the drive device 2 is greatly reduced.

In order to further improve the installation efficiency of the driving device 2 and further reduce the installation difficulty of the driving device 2, as shown in fig. 2 and 3, the base further includes an avoiding groove 103, which is disposed on the bearing surface 102, and the installation groove 101 and the avoiding groove 103 are communicated through a communicating groove 104, and the avoiding groove 103 and the communicating groove 104 are used for avoiding the movement track of the driving device 2.

Drive arrangement 2 is cantilever type drive arrangement, dodges recess 103 and intercommunication groove 104 and has a plurality of effects, can hold drive arrangement 2 at first to it has reduced the distance between first light path hole 100 axial and first light path hole 100 by a wide margin to make to shelter from light ring 4, and secondly, can play the effect of dodging when drive arrangement 2 actuating motion, has avoided leading to drive arrangement 2's damage with drive arrangement 2 contact, and the production of noise.

Preferably, as shown in fig. 2, the bearing surface 102 of the present embodiment includes a high bearing surface 1020 and a low bearing surface 1021, the high bearing surface 1020 and the low bearing surface 1021 are connected through a middle transition surface 1022, the installation groove 101, the avoiding groove 103 and the communication groove 104 are respectively disposed on the low bearing surface 1021, and the first light path hole 100 is disposed on the high bearing surface 1020. By using the high-low design of the high bearing plane 1020 and the low bearing plane 1021, the distance between the axial direction of the shielding diaphragm 4 in the first light path hole 100 and the first light path hole 100 can be further reduced, that is, the whole structure is more compact and smaller in size in a limited space as much as possible, so that the whole thickness is further thinned, and the high-low design can be widely applied to various electronic devices, and has stronger practicability.

Secondly, the high bearing plane 1020 is vertically connected with the middle transition plane 1022, and the low bearing plane 1021 is vertically connected with the middle transition plane 1022, so that the structural processing and manufacturing are facilitated, and meanwhile, the structural strength performance is better.

Certainly, the high bearing plane 1020 and the middle transition plane 1022 may be connected by an obtuse angle with a certain angle, and meanwhile, the low bearing plane 1021 and the middle transition plane 1022 may also be connected by an obtuse angle with a certain angle, for example, an obtuse angle of 120 ° may be set according to actual requirements.

In addition, the high bearing plane 1020 and the low bearing plane 1021 of the embodiment are distributed in parallel, so as to facilitate processing and manufacturing, and meanwhile, the subsequent installation of the driving device 2 can be facilitated, so that interference is not easily formed, the installation efficiency is improved, and the installation difficulty is reduced.

As shown in fig. 2 and fig. 3, a high-position parallel surface 102a parallel to the high-position bearing plane 1020, a middle parallel surface 102b parallel to the middle transition surface 1022, and a low-position parallel surface 102c parallel to the low-position bearing plane 1021 are provided on a surface of the block-shaped base 10 away from the bearing surface 102, the high-position parallel surface 102a, the middle parallel surface 102b, and the low-position parallel surface 102c are sequentially connected, a vertical distance between the high-position bearing plane 1020 and the high-position parallel surface 102a is smaller than a vertical distance between the low-position bearing plane 1021 and the low-position parallel surface 102c, and the high-position parallel surface 102a and the middle parallel surface 102b form a gap to facilitate installation of the block-shaped base 10, and at the same time, the overall weight of the block-shaped base 10 is reduced, and the design is more reasonable.

Preferably, the base still includes the installation axle 105 that is located the intercommunication groove 104 and dodges groove 103 intercommunication department directly the place ahead, and installation axle 105 is used for connecting the shading light ring 4 that links to each other with drive arrangement 2, and the shading light ring 4 can rotate with installation axle 105 relatively under drive arrangement 2's drive to make the shading light ring 4 reach the purpose of adjusting luminance, install axle 105 and fix on dodging groove 103 tank bottom and high-order bearing plane 1020.

The installation axle 105 it can stably shelter from light ring 4 rotational stability, simultaneously, utilizes the intercommunication groove 104 and dodges the position in the groove 103 intercommunication department dead ahead, and it can be convenient for shelter from light ring 4 installation to and drive arrangement 2 and the connection installation of sheltering from light ring 4, in order to improve the installation effectiveness, and subsequent dismantlement efficiency.

Preferably, as shown in fig. 1, 2, 4 and 5, the base further comprises a cover 109, the cover 109 is provided with a second light path hole 1093 whose axis coincides with the axis of the first light path hole 100, and the aperture of the first light path hole 100 is equal to the aperture of the second light path hole 1093, so that light interference is prevented, and at the same time, a first annular portion 1001 is disposed at an end of the first light path hole 100 close to the second light path hole 1093, an orifice at one end of the second light path hole 1093 close to the first light path hole 100 is provided with a second circular ring part 1093a, the inner wall of the first circular ring part 1001 is flush with the hole wall of the first light path hole 100, the inner wall of the second circular ring part 1093a is flush with the hole wall of the second light path hole 1093, the distance between two corresponding end faces of the diaphragm 4 can be further reduced and shielded by using the above mode, a good dimming effect can be achieved, and the shielding part shielding the diaphragm 4 is located at the steep positions of the first circular ring part 1001 and the second circular ring part 1093a after reaching the shielding position.

In order to facilitate the installation and the disassembly, the cover 109 and the block base 10 are circumferentially sleeved with each other, specifically, a U-shaped protrusion 102d is disposed on the high-level bearing plane 1020, the first light path hole 100 is disposed in the U-shaped protrusion 102d, two end portions of the U-shaped protrusion 102d extend to the middle transition surface 1022 side and are connected with the low-level bearing plane 1021 through an inclined portion 102e, U-shaped outer steps 102p connected with the middle transition surface 1022 are disposed on three sides of the low-level bearing plane 1021, a sleeved skirt 102f sleeved on the U-shaped outer steps 102p and the U-shaped protrusion 102d is disposed on the cover 109, a wiring gap for the lead 20d to penetrate out is disposed on the sleeved skirt 102f, an engagement surface 102g engaged with the middle transition surface is disposed in the middle of the sleeved skirt 102f, the cover 109 and the block base 10 can be stably connected together through the above engagement, and meanwhile, the cover 109 is designed to be used for the internal driving device 2, the internal driving device, the internal light path hole 100 is disposed in the upper portion, the lower portion of the lower portion 102 is disposed on the lower portion of the lower portion 102 Stabilizing mean 3 and sheltering from light ring 4 and protect, increase of service life.

As shown in fig. 2 and 4, an inner top surface 1090 parallel to the high-position bearing plane 1020 and the low-position bearing plane 1021 is provided at the inner top of the cover 109, and an outer top surface 1090w parallel to the inner top surface 1090 is provided at the outer top of the cover 109, and the inner top surface 1090 is capable of allowing the stop diaphragm 4 to rotate and preventing rotational interference with the stop diaphragm 4. The vertical distance between the inner top surface 1090 and the high bearing plane 1020 is smaller than the vertical distance between the inner top surface 1090 and the low bearing plane 1021 to reduce the distance between the first light path hole 100 and the second light path hole 1093 as much as possible, so as to improve the dimming quality, a reinforcing portion 1091 sleeved with the free end of the mounting shaft 105 is arranged on the inner top surface 1090, the reinforcing portion 1091 is fixed on the inner top surface 1090 and is in a circular ring shape, as shown in fig. 5, the mounting shaft 105 is a stepped shaft, and an annular groove 1092 is formed at the joint of the reinforcing portion 1091 and the mounting shaft 105, and the annular groove 1092 is located in the middle of the vertical distance between the inner top surface 1090 and the high bearing plane 1020.

The ring channel 1092 is used for sheltering from the suit of light ring 4 and restricts sheltering from light ring 4 thickness direction, prevents to shelter from light ring 4 drunkenness, and shelters from light ring 4 and can rotate relative to ring channel 1092, reaches the purpose of adjusting luminance for shelter from light ring 4 and be in the position placed in the middle of vertical distance between interior top surface 1090 and the high level bearing plane 1020, play a very good light modulation effect.

A stop diaphragm 4 rotatably connected to a base a of the iris diaphragm is connected to the base a of the iris diaphragm, and it is another object of the present invention to prevent the stop diaphragm 4 from being shaken by a diaphragm shake-proof mechanism, and specifically, as shown in fig. 6, the diaphragm shake-proof mechanism of the present invention has a structure including:

two fixed suction members 108, one of the fixed suction members 108 being fixed at a blocking position on the base a of the iris diaphragm, the other fixed suction member 108 being fixed at an unblocking position on the base a of the iris diaphragm, the blocking diaphragm 4 being movable between the blocking position and the unblocking position;

a first anti-shake adsorption member 403 fixed to the blocking aperture 4, and magnetically coupled to the fixed adsorption member 108 in the blocking position when the blocking aperture 4 rotates to the blocking position;

and a second anti-shake absorption member 404 fixed to the blocking aperture 4, wherein the second anti-shake absorption member 404 is magnetically connected to the fixed absorption member 108 in the non-blocking position when the blocking aperture 4 rotates to the non-blocking position.

Preferably, a shielding in-place stop 106 is arranged at the shielding position, one fixed adsorption member 108 is fixed on the shielding in-place stop 106, an unshielded in-place stop 107 is arranged at the unshielded position, and the other fixed adsorption member 108 is fixed on the unshielded in-place stop 107. Further, the carrying surface 102 is further provided with the above-mentioned blocking-in-place stopper 106 and the non-blocking-in-place stopper 107, and the blocking-in-place stopper 106 and the non-blocking-in-place stopper 107 are distributed on the periphery of the first light path hole 100. The in-place blocking block 106 and the in-place unblocking block 107 limit the range of movement of the blocking aperture 4, so as to protect the blocking aperture 4, and meanwhile, in order to prevent the shaking phenomenon after the blocking aperture 4 rotates in place, the fixed adsorbing members 108 are respectively arranged on the in-place blocking block 106 and the in-place unblocking block 107, and the fixed adsorbing members 108 are made of magnetic materials.

The fixed adsorption member 108 is a magnet or a magnetic conductive sheet, preferably a magnet.

Preferably, as shown in fig. 2 and 6, the blocking aperture 4 and the blocking-in-place stop 106 are both supported by a surface-to-surface contact structure when the blocking aperture 4 is rotated to the blocking position; the blocking aperture 4 and the non-blocking in position stop 106 both rest together in a surface-to-surface configuration when the blocking aperture 4 is rotated to the non-blocking position. The contact structure of the surface and the surface is adopted, the stability after the contact can be improved, and secondly, the contact modes of the surface and the surface, such as a plane, an arc concave surface, an arc convex surface and the like are adopted.

One side surface of the shield-in-place stopper 106 close to the first light path hole 100 is a first contact plane 1060 parallel to the axis of the first light path hole 100, and the fixed adsorbing member 108 on the shield-in-place stopper 106 is located at one end of the shield-in-place stopper 106 close to the first contact plane 1060; one side surface of the non-shielding in-place stopper 107 close to the first light path hole 100 is a second contact plane 1070 parallel to the axial line of the first light path hole 100, and the fixed absorbing member 108 on the non-shielding in-place stopper 107 is located at one end of the shielding in-place stopper 106 close to the second contact plane 1070.

The first contact plane 1060 and the second contact plane 1070 form an angle of 90 °. The first contact plane 1060 and the second contact plane 1070 are designed to enlarge the contact area with the blocking aperture 4, so as to secure the blocking aperture 4 in place.

In order to firmly fix the fixed absorbing member 108, a first mounting hole is formed at a position which is far away from a surface of the bearing surface 102 and is close to the first contact plane 1060 of the in-place block 106, a second mounting hole is formed at a position which is not far away from a surface of the bearing surface 102 and is close to the second contact plane 1070 of the in-place block 107, and the fixed absorbing member 108 is respectively mounted in the first mounting hole and the second mounting hole, so that the fixed absorbing member 108 can be protected on the premise of ensuring enough magnetic absorption force, and the fixed absorbing member 108 is prevented from directly contacting with the shading diaphragm 4 to cause rapid abrasion of the fixed absorbing member 108 and the shading diaphragm 4.

Also, as shown in fig. 4, inner protrusions 109a respectively pressing on the block-in-place 106 and the block-out-of-place 107 are provided on the inner top surface 1090, and the inner protrusions 109a prevent the fixed suction member 108 from being removed from the openings of the first and second mounting holes.

As shown in fig. 6 and 7, the above-mentioned shading diaphragm 4 has a structure including a sheet-shaped body 40, a mounting shaft insertion hole 401 is provided in a rotation portion of the sheet-shaped body 40, the light hole 402 is arranged at the shielding part of the sheet body 40, the first anti-shake adsorption piece 403 and the second anti-shake adsorption piece 404 which are positioned at the periphery of the light hole 402 are also arranged at the shielding part of the sheet body 40, the first anti-shake adsorption piece 403 is magnetically connected with the fixed adsorption piece 108 which is shielded on the in-place block 106, the second anti-shake adsorption piece 404 is magnetically connected with the fixed adsorption piece 108 which is not shielded on the in-place block 107, the shielding part which shields the diaphragm 4 moves and switches between the in-place block 106 and the in-place block 107, and the first anti-shake absorption member 403 is used for blocking the blocking portion in place and fixing it in the blocking position, and the second anti-shake absorption member 404 is used for blocking the blocking portion to the non-blocking position and fixing it in the non-blocking position.

By using the anti-shake mechanism (the first anti-shake absorbing member 403 and the second anti-shake absorbing member 404), the shading diaphragm 4 can be firmly adsorbed and fixed by the relative fixed absorbing member 108 at the shading position or the non-shading position, so that the shading part of the shading diaphragm 4 cannot be inclined, cannot move or shake, and the stability of the light source is ensured.

Further, as shown in fig. 7, the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404 are made of magnetic materials, the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404 are made of magnets or metal blocks, when the magnets are used, the magnets attract the fixed adsorbing member 108 with different poles, and the metal blocks are adsorbed under the magnetic action of the fixed adsorbing member 108, so that the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404 of the present invention adopt the magnet materials from the aspect of reaction speed, so as to improve the dimming efficiency of the image pickup apparatus and the electronic device.

Preferably, the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are fixed on any surface in the thickness direction of the shielding portion, for example, glue is used to directly fix the first anti-shake absorption member 403 and the second anti-shake absorption member 404 on any surface, one side of the shielding portion of the sheet-like body 40 has a first side plane 405, the first side plane 405 is matched with the first contact plane 1060, the other side of the shielding portion of the sheet-like body 40 has a second side plane 406, the second side plane 406 is matched with the second contact plane 1070, the matching can ensure that the two have larger contact surfaces to ensure the stability when the two are in place, and simultaneously, the mutual magnetic absorption force of the first anti-shake absorption member and the relative fixed absorption member 108, or the second anti-shake absorption member 404 and the relative fixed absorption member 108 can make the respective positions of the shielding diaphragm 4 have a stability when the diaphragm is in place or when the diaphragm is removed, it is possible to further prevent the shielding portion of the sheet body 40 from being inclined, moved, shaken, and the like.

Of course, the first anti-shake absorption member 403 and the second anti-shake absorption member 404 are fixed to different surfaces in the thickness direction of the shielding portion, and the above-mentioned use requirements can be satisfied as well.

As shown in fig. 7, the width of the sheet body 40 of the present embodiment is configured to be large at both ends and small at the middle, and secondly, the first side plane 405 and the second side plane 406 form an acute angle of less than 90 ° so that the diaphragm can move between the first contact plane 1060 and the second contact plane 1070, and of course, the angle formed by the first side plane 405 and the second side plane 406 can be enlarged as the angle between the first contact plane 1060 and the second contact plane 1070 is enlarged.

Next, in order to firmly fix the first anti-shake adsorption member 403 and the second anti-shake adsorption member 404 and to improve the installation efficiency, a first limiting hole 40a and a second limiting hole 40b are formed in any surface of the shielding portion of the sheet-shaped body 40 in the thickness direction, the first limiting hole 40a is located at a side close to the first side plane 405, the second limiting hole 40b is located at a side close to the second side plane 406, the first anti-shake adsorption member 403 is installed in the first limiting hole 40a, and the second anti-shake adsorption member 404 is installed in the second limiting hole 40b, which is designed to shorten the distance from the fixed adsorption member 108 as much as possible to improve the adsorption strength of the adsorption and fixation, thereby completely solving the problem that the shielding diaphragm 4 still has inclination, movement, and shaking due to weak magnetic adsorption force.

The first limiting hole 40a and the second limiting hole 40b may be through holes or blind holes directly formed in the shielding portion of the sheet-shaped body 40, or corresponding annular protrusions 40c may be formed on any surface of the shielding portion of the sheet-shaped body 40, the first limiting hole 40a or the second limiting hole 40b is formed inside the annular protrusions, which is equal to the fact that the corresponding annular protrusions 40c are sleeved on the first anti-shake absorbing member 403 and the second anti-shake absorbing member 404 in the circumferential direction, and the annular protrusions 40c are more beneficial to the installation and fixation of the first anti-shake absorbing member 403 and the second anti-shake absorbing member 404. As a preferable mode, the annular protrusion 40c is disposed on a surface of the sheet-like body 40 where the shielding portion is close to the cover 109, because the cover 109 can axially limit the positions of the first anti-shake absorption member 403 in the first limiting hole 40a and the second anti-shake absorption member 404 in the second limiting hole 40b, the difficulty of mounting the stop diaphragm 4 on the mounting shaft 105 can be reduced.

The inner top surface 1090 of the cover 109 contacts with the annular protrusion 40c or a gap smaller than the thickness of the first anti-shake absorption member 403 and the thickness of the second anti-shake absorption member 404 is left between the inner top surface 1090 and the annular protrusion 40c, of course, the first anti-shake absorption member 403 and the first limiting hole 40a can be fixed by glue, and similarly, the second anti-shake absorption member 404 and the second limiting hole 40b can also be fixed by glue, the thickness of the first anti-shake absorption member 403 is equal to or smaller than the hole length of the first limiting hole 40a, and the thickness of the second anti-shake absorption member 404 is smaller than the hole length of the second limiting hole 40b, so that the shielding part of the sheet body 40 is prevented from bearing heavier due to the outward protrusions of the first anti-shake absorption member 403 and the second anti-shake absorption member 404.

Preferably, as shown in fig. 7, the annular protrusion 40c is in the shape of a rectangular protrusion, in which case the first limiting hole 40a and the second limiting hole 40b are both rectangular holes, and the first anti-shake adsorbing member 403 and the second anti-shake adsorbing member 404 are both rectangular structures, so as to ensure that one side of the first anti-shake adsorbing member 403 close to the first side plane 405 is parallel to the first side plane 405, and one side of the second anti-shake adsorbing member 404 close to the second side plane 406 is parallel to the second side plane 406, so as to increase the magnetic adsorption force and the magnetic connection stability after magnetic adsorption to the maximum extent, and in addition, the annular protrusion 40c is in the shape of a rectangular protrusion, which can thin the thickness of the sheet body 40 to the maximum extent, and increase the magnetic adsorption force as much as possible, so as to meet the dimming requirement of a space with a smaller thickness. Meanwhile, the design of the annular protrusion 40c can structurally reinforce the shielding part of the sheet-like body 40, which is equivalent to the function of a reinforcing rib.

The sheet-shaped body 40 has a circular arc outer convex surface 407 connected with the first side plane 405 and the second side plane 406 at the shielding part thereof, so that the sheet-shaped body 40 is prevented from generating an interference phenomenon during movement.

The rotating portion of the sheet-like body 40 is provided with a kidney-shaped hole 408, and the driving device 2 is movably connected to the kidney-shaped hole 408, that is, when the driving device 2 is in driving operation, the sheet-like body 40 can be pushed to switch between the shielding position and the non-shielding position because the position of the driving device 2 is changed and moves along the kidney-shaped hole 408.

The kidney-shaped hole 408 is a kidney-shaped through hole which facilitates connection with the driving device 2 and transmission of driving power.

Next, as shown in fig. 7, an annular upper convex portion 4080 having a shape adapted to the waist-shaped hole 408 is provided at an end of the waist-shaped hole 408 close to the cover 109, the annular upper convex portion 4080 is internally communicated with the waist-shaped hole 408, and an end surface of the annular upper convex portion 4080 close to the cover 109 is an annular contact plane 4081, and the annular contact plane 4081 is matched with the inner top surface 1090, so that the sheet-shaped body 40 can be kept horizontal when the sheet-shaped body 40 is switched between the shielding position and the non-shielding position, and meanwhile, the increased inner wall of the annular upper convex portion 4080 increases an axial contact surface with the driving device 2, which greatly prolongs the service life of the sheet-shaped body 40, and further improves smoothness and stability of switching between the shielding position and the non-shielding position of the sheet-shaped body 40.

The wall of the kidney-shaped hole 408 is flush with the inner wall of the annular upper protrusion 4080.

The aperture of the mounting shaft access hole 401 is slightly larger than the groove base diameter of the annular groove 1092, and a clearance fit ensures that the sheet 40 can be driven by the drive means 2 and switched between a blocking position and an unblocking position, the walls of the groove 1092 limiting the sheet 40 in the thickness direction.

The annular contact flat surface 4081 is higher than the upper end surface of the annular projection 40c to avoid interference.

As shown in fig. 8, the sheet 40 is in the occluding position and, as shown in fig. 9, the sheet 40 is in the non-occluding position.

As shown in fig. 10 to 12, the above-mentioned driving device 2 includes the following structure: the frame body 20 is provided with an opening 200 on one side surface, the frame body 20 is installed in the installation groove 101, a rotating block 201 which is rotatably connected with the frame body 20 is arranged in the frame body 20, a swinging cantilever 202 which extends outwards from the frame body 20 and penetrates out from the opening 200 is connected to the rotating block 201, namely, one end of the swinging cantilever 202 extends into the opening 200 and is connected to the rotating block 201, the other end of the swinging cantilever 202 is suspended, the swinging cantilever 202 extends to the position below a rotating part of the shading diaphragm 4, namely, the position below the rotating part of the sheet-shaped body 40, a driving column 203 which extends upwards into a waist-shaped hole 408 is connected to the suspended end of the swinging cantilever 202, the driving column 203 moves back and forth in the waist-shaped hole 408 when the swinging cantilever 202 swings back and forth, the driving column 203 is a circular column, and the rotating block 201 is connected with an electromagnetic driving mechanism.

Utilize swing cantilever 202 in coordination with turning block 201 and framework 20 it can realize the swing drive in the horizontal direction, simultaneously, this kind of integrated configuration it can be convenient for wholly assemble in advance and fix with this integral erection, not only reduced the installation degree of difficulty by a wide margin, but also further improved the installation effectiveness, in addition, utilize horizontal swing drive mode, it has still further reduced the ascending thickness of diaphragm assembly thickness direction, can be applicable to various less thickness space ground installations.

Secondly, utilize swing cantilever 202 to drive it and changed current direct rotation type drive mode, reduced with the installation degree of difficulty that shelters from the light ring, also be convenient for simultaneously shelter from the dismouting maintenance of light ring to and drive arrangement's dismouting maintenance, the design is more reasonable and accord with current enterprise's high-speed mass production requirement.

The swing arm 202 is suspended in the avoidance groove 103 and the communication groove 104. Kidney hole 408 is a blind or through hole.

Of course, the suspension end of the swing arm 202 is connected with the driving column 203 extending downward into the kidney-shaped hole 408, i.e., the driving column extends upward or downward into the kidney-shaped hole 408 to meet the use requirement.

The upper end of the drive column 203 extends into the annular upper projection 4080 and the upper end face of the drive column 203 is flush with the annular contact surface 4081 or below the annular contact surface 4081, thereby preventing interference at the upper end of the drive column 203.

The electromagnetic driving mechanism drives the rotating block 201 to rotate back and forth within a certain angle relative to the frame 20, and the rotating block 201 rotates to drive the swinging cantilever 202 to swing back and forth within a certain angle, and the swinging cantilever 202 swings to force the driving column 203 to push the rotating part of the sheet-shaped body 40 to rotate back and forth relative to the mounting shaft 105, so that the kidney-shaped hole 408 plays a plurality of roles of transmitting power and limiting the maximum back and forth switching distance of the sheet-shaped body 40.

Specifically, the electromagnetic driving mechanism in the invention includes a circuit board 20a fixed on the outer top surface of the frame 20, a driving coil 20b is electrically connected to the circuit board 20a, a driving magnet 20c is arranged in the rotating block 201, and after the circuit board 20a is electrified, the rotating block 201 realizes back and forth rotation under the matching of the driving coil 20b and the driving magnet 20c, thereby achieving the purpose of driving.

The driving coil 20b is connected to a power source through a lead wire 20d, and in order to fix the lead wire 20d more stably, a wiring groove 1021a into which the lead wire 20d is embedded is provided on the lower supporting plane 1021 as shown in fig. 2.

Next, as shown in fig. 11 and 14 to 15, a rotation shaft mounting hole 20e is provided in each of the inner top surface and the inner bottom surface of the frame body 20, the axial lines of the two rotation shaft mounting holes 20e coincide with each other, a rotation shaft body 20f is provided in each of the upper surface and the lower surface of the rotation block 201, one rotation shaft body 20f is inserted into the rotation shaft mounting hole 20e in the inner top surface, and the other rotation shaft body 20f is inserted into the rotation shaft mounting hole 20e in the lower surface, thereby ensuring the rotational stability of the rotation block 201. Meanwhile, in order to facilitate the entry of the rotary shaft bodies 20f into the rotary shaft mounting holes 20e, upper inclined guide grooves 20g extending from the opening 200 toward the respective rotary shaft mounting holes 20e are provided on the inner top surface of the frame body 20, lower inclined guide grooves 20z extending from the opening 200 toward the respective rotary shaft mounting holes 20e are provided on the inner bottom surface of the frame body 20, and the rotary shaft bodies 20f enter and are mounted in the rotary shaft mounting holes 20e from the upper inclined guide grooves 20g and the lower inclined guide grooves 20z, respectively.

The groove width of the upper inclined guide groove 20g is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and similarly, the groove width of the lower inclined guide groove 20z is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and the groove depth of the upper inclined guide groove 20g is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and similarly, the groove depth of the lower inclined guide groove 20z is gradually reduced from the opening 200 to the corresponding rotating shaft mounting hole 20e, and the structure can improve the dismounting efficiency of the rotating shaft body 20 f.

In addition, in order to facilitate the removal and installation of the drive magnet 20c, as shown in fig. 13 and 16, a mounting blind hole 201a extending to the front side surface of the rotary block 201 is provided on the rear side surface of the rotary block 201, the drive magnet 20c enters from the opening of the mounting blind hole 201a and is fixed in the mounting blind hole 201a, the drive magnet 20c may be further secured in the mounting blind hole 201a by glue, and the rear side surface of the drive magnet 20c is located in the opening of the mounting blind hole 201a to prevent interference caused by protrusion. Further, in order to make the electromagnetic driving more rapid and stable, two communicating hole bodies 201b are provided on the upper surface and/or the lower surface of the rotating block 201 and located at the periphery of the corresponding rotating shaft body 20f, and the communicating hole bodies 201b communicate with the mounting blind holes 201a, and of course, the communicating hole bodies 201b can also facilitate the mounting and dismounting of the driving magnet 20c to improve the efficiency. Preferably, the communicating hole 201b of the present invention is a waist-shaped hole, and the escape space is enlarged as much as possible to improve the electromagnetic driving performance of the driving magnet 20c and the driving coil 20 b.

Also, in order to improve the mounting and positioning efficiency, as shown in fig. 11 to 17, a bar-shaped positioning protrusion 20s is provided in a central region of an outer top surface of the frame body 20, a corresponding bar-shaped hole 20j into which the bar-shaped positioning protrusion 20s is inserted is provided in the circuit board 20a, and the driving coil 20b is fitted outside the bar-shaped positioning protrusion 20 s. Meanwhile, positioning pins 20k are respectively arranged at four corners of the outer top surface of the frame body 20, positioning holes 20q corresponding to the positioning pins 20k one to one are arranged on the circuit board 20a, and the positioning pins 20k are inserted into the positioning holes 20q for positioning.

Two positioning pin holes 20w are respectively arranged at two diagonal corners of the outer bottom surface of the frame body 20, two positioning pin bodies 101a which are in one-to-one correspondence with the positioning pin holes 20w are arranged at the bottom of the mounting groove 101, and the positioning pin bodies 101a are inserted into the positioning pin holes 20w to fix the frame body 20.

Above structure it can realize accurate location installation, has improved the installation effectiveness by a wide margin.

As shown in fig. 6 and 10, in order to enable the driving magnet 20c of the driving device 2 to have a continuous attracting force, the present invention designs the above-mentioned stabilizing mechanism 3, the stabilizing mechanism 3 is installed in the installation recess 101, specifically, the stabilizing mechanism 3 of the present invention includes a stabilizing magnetic conductive sheet 30 disposed in the installation recess 101 and located outside the opening of the installation blind hole 201a, the driving magnet 20c and the stabilizing magnetic conductive sheet 30 are distributed in a relative interval, and the stabilizing magnetic conductive sheet 30 provides a continuous magnetic attracting force to the driving magnet 20c so as to ensure the swing stability of the swing cantilever 202.

Next, one surface of the stable magnetic conductive sheet 30 close to the driving magnet 20c is an adsorption plane, an area of the adsorption plane is greater than or equal to an area of an end surface of the driving magnet 20c, the adsorption plane is a rectangular surface, and an end surface of the driving magnet 20c is a rectangular surface. The above structure can provide a stable adsorption force.

Further, as shown in fig. 13, a rear opening 20t is provided at one end of the frame 20 away from the opening 200, the rear opening 20t is communicated with the opening 200, the rear opening 20t can form an avoidance when the rotating block 201 rotates, and the adsorption force between the driving magnet 20c and the stable magnetic conductive sheet 30 can be further improved, so that the swing cantilever 202 swings more stably.

As shown in fig. 2 and fig. 6, in order to firmly fix the stable magnetic conductive sheet 30, two positioning notches 101b are disposed on the groove wall of the mounting groove 101, and two ends of the stable magnetic conductive sheet 30 are respectively engaged with the positioning notches 101b to fix the stable magnetic conductive sheet 30, and of course, glue may be disposed between the stable magnetic conductive sheet 30 and the positioning notches to further improve the fixing stability of the stable magnetic conductive sheet 30.

Preferably, the length of the magnetic stabilizing and conducting plate 30 of the present invention is longer than the aperture of the installation blind hole 201a, so as to ensure that the magnetic stabilizing and conducting plate 30 has a large-angle adsorption force with respect to one surface of the driving magnet 20c, that is, the driving magnet 20c can be adsorbed by the magnetic force of the magnetic stabilizing and conducting plate 30 at different torsional motion angles.

Then, the side of each positioning notch close to the driving magnet 20c is respectively provided with an avoiding inclined plane 20y, the avoiding inclined plane 20y can further enlarge the magnetic adsorption angle of the stable magnetic conducting sheet 30, a wide-angle adsorption angle is formed, and the practicability is further improved. In order to facilitate the disassembly and assembly, a surface of the stabilizing magnetic conductive sheet 30 away from the driving magnet 20c and a groove wall of the mounting groove 101 form an avoiding space 20u, so that the tool can clamp the stabilizing magnetic conductive sheet 30 to move in and out during the disassembly and assembly.

The working principle of the invention is as follows:

when the electromagnetic driving mechanism is powered on, the magnet 20c is driven to drive the rotating block 201 to rotate back and forth relative to the frame 20, the swinging cantilever 202 connected to the rotating block 201 swings back and forth together, at the moment, the driving column 203 on the swinging cantilever 202 moves in the waist-shaped hole 408 of the sheet-shaped body 40, because the sheet-shaped body 40 is rotatably mounted on the mounting shaft 105, when the position of the driving column 203 changes, the sheet-shaped body 40 rotates relative to the mounting shaft 105, and the rotation of the sheet-shaped body 40 enables the shielding part of the sheet-shaped body 40 to be switched back and forth between the shielding position and the non-shielding position, thereby achieving the purpose of dimming.

In the shielding position, the first side plane 405 is matched with the first contact plane 1060, and the first anti-shake absorption member 403 is magnetically connected with the fixed absorption member 108, so as to ensure the stability of the shielding diaphragm 4 after being shielded in place, and avoid the phenomena of inclination, movement, shaking and the like.

In the non-shielding position, the second side plane 406 is matched with the second contact plane 1070, and the fixed absorbing member 108 is magnetically connected to the second anti-shake absorbing member 404, so as to ensure the stability of the shielding diaphragm 4 in the non-shielding state and avoid the phenomena of tilting, moving, shaking and the like.

When the driving magnet 20c moves back and forth, the driving magnet 20c is continuously attracted by the magnetic force of the stable magnetic conductive sheet 30, so that the operation stability of the driving magnet 20c, namely the operation stability of the driving device 2, is ensured.

Example two

The structure and principle of the embodiment are basically the same as the embodiment, and the different structures are as follows: as shown in fig. 18, the mounting shaft 105 is fixed to the bottom of the escape groove 103.

EXAMPLE III

The structure and principle of the present embodiment are basically the same as the embodiments, and the different structures are as follows: as shown in fig. 19, the mounting shaft 105 is fixed to the elevated bearing plane 1020.

Example four

On the basis of the above-mentioned embodiments, as shown in fig. 6, the present invention further provides an iris diaphragm assembly having the stabilizing mechanism of the driving device as described above, the driving device 2 is mounted on the base a of the iris diaphragm, the iris diaphragm 4 is rotatably connected to the base a of the iris diaphragm, the driving device 2 drives the iris diaphragm 4 to switch between the blocking position and the unblocking position, the stabilizing mechanism 3 is provided on the base a of the iris diaphragm opposite to the driving device 2, and the specific configurations of the base a of the iris diaphragm, the driving device 2 and the iris diaphragm 4 are shown in the first embodiment.

EXAMPLE five

On the basis of the above embodiment, the present invention further provides a lens driving device, which includes a device base, a carrier mounted on the device base, and a housing fixed on the base, wherein the iris diaphragm assembly is mounted on the housing, and the carrier and the iris diaphragm assembly are located in a cavity formed by the device base and the housing. The device base, carrier and housing of this embodiment are all prior art, and refer to the prior patent technology of this company.

EXAMPLE six

On the basis of the above-described embodiment, as shown in fig. 20, the present invention also provides an image pickup apparatus having the lens driving apparatus as described in the fifth embodiment.

EXAMPLE seven

On the basis of the foregoing embodiment, as shown in fig. 21, the present invention further provides an electronic device, for example, any one of a monitoring electronic device and a security electronic device, having the image pickup apparatus according to the sixth embodiment.

Example eight

The structure and principle of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows: as shown in fig. 22, the stabilizing magnetic conductive sheet 30 is fixed on the frame 20, an L-shaped cantilever plate 20h is connected to the upper side of the rear opening 20t of the frame 20, and the stabilizing magnetic conductive sheet 30 is fixed on the vertical portion of the L-shaped cantilever plate 20 h.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. Drive arrangement's stabilizing mean, drive arrangement include install framework (20) on iris diaphragm base (a), built-in framework (20) and with framework (20) rotation connection's turning block (201), be connected with swing cantilever (202) at the front end of turning block (201), install drive magnetite (20 c) on turning block (201), its characterized in that, this stabilizing mean includes:

the stable magnetic conductive sheet (30) and one end face, far away from the swing cantilever (202), of the driving magnet (20 c) are distributed at intervals, and the stable magnetic conductive sheet (30) is used for providing a continuous magnetic adsorption force for the driving magnet (20 c);

one surface of the stable magnetic conductive sheet (30) close to the driving magnet (20 c) is an adsorption plane;

the stable magnetic conductive sheet (30) is fixed in the mounting groove (101);

two positioning notches (101 b) which are distributed oppositely are arranged on the groove wall of the mounting groove (101), and two ends of the stable magnetic-conducting plate (30) are clamped in the positioning notches (101 b) one by one.

2. The stabilizing mechanism of a driving device according to claim 1, wherein the area of the suction plane is larger than or equal to the area of one end face of the driving magnet (20 c).

3. The stabilizing mechanism for a driving device according to claim 2, wherein said attracting plane is a rectangular plane, and one end surface of said driving magnet (20 c) is a rectangular plane.

4. The stabilizing mechanism of a driving device according to claim 1, wherein said frame (20) is fixed in a mounting recess (101) on an iris diaphragm base (a).

5. The stabilizing mechanism for a driving device according to claim 1, wherein a surface of the stabilizing magnetic conductive plate (30) away from the driving magnet (20 c) and a groove wall of the mounting groove (101) form an escape space (20 u).

6. The stabilizing mechanism of the driving device according to claim 1, wherein an opening (200) is formed on one side surface of the frame body (20), a rear opening (20 t) is formed at one end of the frame body 20 far away from the opening 200, a blind mounting hole (201 a) extending to the front side surface of the rotating block (201) is formed on the rear side surface of the rotating block (201), the driving magnet (20 c) enters from the hole of the blind mounting hole (201 a) and is fixed in the blind mounting hole (201 a), and the stabilizing magnetic conductive sheet (30) is located outside the hole of the blind mounting hole (201 a).

7. Iris diaphragm assembly characterized in that it has a stabilizing mechanism for the drive device according to any of the previous claims 1-6.

8. Lens driving device comprising a device base on which a carrier is mounted, and a housing fixed to the base, characterized in that an iris diaphragm assembly as claimed in claim 7 is mounted on the housing.

9. An image pickup apparatus having the lens driving apparatus according to claim 8.

10. An electronic apparatus, characterized by having the image pickup apparatus as set forth in claim 9 above.