CN218567794U

CN218567794U - Iris diaphragm image pickup driving device

Info

Publication number: CN218567794U
Application number: CN202222982707.XU
Authority: CN
Inventors: 陈佳鑫; 高明
Original assignee: Liaoning Zhonglan Photoelectric Technology Co Ltd
Current assignee: Liaoning Zhonglan Photoelectric Technology Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-03-03
Anticipated expiration: 2032-11-09

Abstract

The utility model relates to the technical field of optical element driving, in particular to a variable aperture camera driving device, which comprises a blade, a carrier component, a guide piece and a driving component; the carrier assembly comprises a fixed carrier, a rotary carrier and a supporting carrier; two ends of the blade are respectively connected with the fixed carrier and the rotating carrier; the fixed carrier is connected with the supporting carrier, the rotating carrier is arranged between the fixed carrier and the supporting carrier, and a guide piece is arranged between the rotating carrier and the supporting carrier; the driving assembly comprises a fixed part, a rotating part, a memory alloy wire and a supporting part, one end of the fixed part is connected with one end of the rotating part through the memory alloy wire, and the other end of the fixed part is fixed on the supporting carrier; one end of the rotating piece is further connected with the supporting carrier through the supporting piece, and the other end of the rotating piece is connected with the rotating carrier so as to drive the rotating carrier to rotate relative to the supporting carrier. The utility model discloses a drive assembly drive rotating carrier rotates, can make light ring control range bigger to and can avoid magnetic field interference.

Description

Iris diaphragm image pickup driving device

Technical Field

The utility model belongs to the technical field of the optical element drive technique and specifically relates to a iris diaphragm drive arrangement that makes a video recording.

Background

At present, with the continuous development of the electronic device industry, the functions of the electronic device gradually tend to be diversified and intelligentized, wherein the camera aperture has gradually become one of the necessary functions of the electronic device. For the camera aperture, in a place with strong light, the camera can obtain a deeper depth of field and a sharper picture by reducing the aperture. In the place with insufficient light, the light inlet quantity can be increased by increasing the aperture, and a pure picture with higher exposure and lower noise point can be obtained.

In the prior art, most of the diaphragms of the mobile phone are fixed diaphragms, and cannot be reduced or enlarged like a camera lens. At present, for the driving of a camera lens with an iris diaphragm, a magnet and a coil are generally adopted to directly drive blades to rotate, in actual use, the magnet can generate angular rotation movement, and a magnetic field is shifted accordingly, so that the imaging quality of the camera lens is influenced.

SUMMERY OF THE UTILITY MODEL

In view of the above disadvantages and deficiencies of the prior art, the present invention provides an iris diaphragm image pickup driving device, which solves the technical problems of magnet rotation and magnetic field offset in the driving device in the prior art.

In order to achieve the above object, the utility model discloses a main technical scheme include:

the utility model provides an iris diaphragm camera driving device, which comprises a blade, a carrier component, a guide piece and a driving component; the carrier assembly comprises a fixed carrier, a rotary carrier and a supporting carrier; two ends of the blade are respectively connected with the fixed carrier and the rotating carrier; the fixed carrier is connected with the supporting carrier, the rotating carrier is arranged between the fixed carrier and the supporting carrier, and a guide piece is arranged between the rotating carrier and the supporting carrier; the driving assembly comprises a fixing piece, a rotating piece, a memory alloy wire and a supporting piece, one end of the fixing piece is connected with one end of the rotating piece through the memory alloy wire, and the other end of the fixing piece is fixed on the supporting carrier; one end of the rotating piece is further connected with the supporting carrier through the supporting piece, and the other end of the rotating piece is connected with the rotating carrier so as to drive the rotating carrier to rotate relative to the supporting carrier.

Furthermore, a first boss and a second boss are arranged on the support carrier, a hole digging groove is formed in the first boss, and the support piece is located in the hole digging groove; the second boss is used for fixing the fixing piece.

Furthermore, clamping jaws are arranged at one end of the fixing piece and one end of the rotating piece, and the clamping jaws are fixed to two ends of the memory alloy wire.

Furthermore, two sets of driving assemblies are arranged, and the two sets of driving assemblies are arranged on the same side or opposite sides of the iris diaphragm camera driving device.

Furthermore, a retaining wall is arranged on the support carrier, and the fixed carrier and the support carrier are fixed through the retaining wall; the fixed carrier and the supporting carrier are respectively provided with a through hole, and the rotating carrier is arranged in the through hole.

Furthermore, the guide piece is arranged between the inner side surface of the retaining wall of the supporting carrier and the groove formed in the outer annular surface of the rotating carrier.

Further, still include the anti-dazzling screen, anti-dazzling screen is connected with the rotating carrier.

Further, still include the protective housing, the protective housing cover is established the outside of support carrier.

The utility model has the advantages that: the utility model provides a but iris diaphragm drive arrangement that makes a video recording adopts drive assembly drive rotating carrier to rotate, and then drives the blade and rotate, can make the light ring control range bigger to and can avoid magnetic field interference.

Drawings

Fig. 1 is a schematic view of the overall structure of the iris diaphragm camera driving device of the present invention;

fig. 2 is an exploded view of the iris diaphragm camera driving device of the present invention;

fig. 3 is a schematic structural view of embodiment 1 of the iris diaphragm image pickup driving device of the present invention;

FIG. 4 is a schematic view of the supporting member of the present invention being a ball;

FIG. 5 is a schematic view of the structure of the supporting member of the present invention as a guide shaft;

fig. 6 is a schematic structural view of embodiment 2 of the iris diaphragm image pickup driving device of the present invention.

In the figure: 1. a blade; 2. a shading sheet; 3. a carrier assembly; 31. fixing a carrier; 311. a retaining wall groove; 32. rotating the carrier; 321. a groove; 322. a guide post; 33. supporting a carrier; 331. a first boss; 332. a second boss; 333. digging a hole groove; 334. retaining walls; 335. fixing grooves; 4. a guide member; 5. a drive assembly; 51. a fixing member; 52. a rotating member; 521. a strip hole; 53. a memory alloy wire; 54. a support member; 55. a clamping jaw.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

Example 1:

the present invention will be described in detail with reference to the accompanying drawings:

as shown in fig. 1 and 2, the present invention provides a variable aperture imaging drive device. The angle rotary motion of this drive arrangement with the magnetite becomes to rely on memory alloy line to drive the blade and opens and shuts, and the light ring is adjusted more accurately, and accommodation is big, and the effect of shooing is better.

Referring to fig. 2, the driving apparatus includes a blade 1, a shade 2, a carrier assembly 3, a guide 4, and a driving assembly 5. The carrier assembly 3 includes a fixed carrier 31, a rotating carrier 32, and a supporting carrier 33. The fixed carrier 31 is connected with the support carrier 33, and the rotary carrier 32 is disposed between the fixed carrier 31 and the support carrier 33. Specifically, the supporting carrier 33 is provided with a retaining wall 334, a retaining wall slot 311 inserted into the retaining wall 334 is arranged below the supporting carrier 33, and the fixed carrier 31 and the supporting carrier 33 are fixedly connected through the retaining wall 334 and the retaining wall slot 311. The fixed carrier 31 and the supporting carrier 33 are provided with through holes in the middle, and the rotating carrier 32 is provided in the through holes. The guide 4 is provided between the rotary carrier 32 and the support carrier 33, and plays a role of guiding when the rotary carrier 32 rotates. Specifically, after the fixed carrier 31 is fixed to the support carrier 33, fixing grooves 335 for fixing the guide 4 are formed in the inner side surfaces of the retaining wall 334 and the retaining wall groove 311, a groove 321 is formed in the outer circumferential surface of the rotary carrier 32 at a position corresponding to the fixing grooves 335, the cross section of the groove 321 is rectangular or trapezoidal, and the guide 4 is movable relative to the groove 321.

One end of the blade 1 is connected with the fixed carrier 31, the other end of the blade 1 is connected with the rotating carrier 32, and the blade 1 can rotate along with the rotating carrier 32 so as to adjust the aperture size. The gobos 2 are connected to a rotary carrier 32.

The driving assembly 5 is disposed between the support carrier 33 and the rotation carrier 32 to drive the rotation carrier 32 to rotate relative to the support carrier 33.

Referring to fig. 2 and 3, the present embodiment is provided with two sets of driving assemblies 5, and the two sets of driving assemblies 5 are disposed on two opposite sides of the iris imaging driving apparatus, and are used for driving the rotary carrier 32 to rotate in opposite directions. When one set of driving components 5 is externally connected with a power supply, the rotating carrier 32 is driven to rotate in one direction, and when the other set of driving components 5 is externally connected with a power supply, the rotating carrier 32 is driven to rotate in the other opposite direction. The driving assembly 5 includes a fixed member 51, a rotating member 52, a memory alloy wire 53, and a support member 54. One end of the fixed part 51 and one end of the rotating part 52 are fixedly connected through a memory alloy wire 53, clamping jaws 55 are arranged at one end of the fixed part 51 and one end of the rotating part 52, and the clamping jaws 55 are fixed with two ends of the memory alloy wire 53. The other end of the fixing member 51 is fixed to the second boss 332 of the support carrier 33. One end of the rotating member 52 is also rotatably connected to the support carrier 33 through a support member 54, and the support member 54 is disposed on the first boss 331 of the support carrier 33. The other end of the rotating member 52 is movably connected to the rotating carrier 32, specifically, the other end of the rotating member 52 is provided with a long hole 521, a guiding post 322 matched with the long hole 521 is arranged below the rotating carrier 32, and when the rotating member 52 rotates, the guiding post 322 can move in the long hole 521, so as to drive the rotating carrier 32 to rotate. The contraction of the memory alloy wire 53 drives the rotating member 52 to rotate around the supporting member 54, thereby driving the rotating carrier 32 to rotate.

Specifically, referring to fig. 4, the support 54 may be a ball or needle roller. The supporting member 54 is positioned in a bored groove 333 provided in the first boss 331, a groove for receiving the supporting member 54 is provided below one end of the rotary member 52, and the supporting member 54 is positioned between the bored groove 333 of the support carrier 33 and the groove of the rotary member 52, so that the rotary member 52 can rotate relative to the support carrier 33. One end of the rotary member 52 is in contact with the fixed carrier 31 at the upper side, so that the fixed carrier 31 is not moved when the rotary member 52 rotates.

Referring to fig. 5, the support 54 may also be a guide shaft. The supporting member 54 is fixed on the first boss 331, the top of the supporting member 54 contacts with the fixed carrier 31, and one end of the rotating member 52 is provided with a hole for being sleeved on the supporting member 54, so that the rotating member 52 can rotate relative to the supporting carrier 33.

In some embodiments, the drive device further comprises a protective housing (not shown). A protective housing is provided outside the blade 1 and the support carrier 33 for protecting the drive.

The utility model discloses a memory alloy wire 53 drive can make the light ring control range bigger to and can avoid magnetic field interference. And the memory alloy wire 53 has a certain elasticity, and can provide a restoring force.

Example 2:

referring to fig. 6, two sets of driving units 5 are provided on the same side of the iris imaging driving apparatus. Specifically, two fixed members 51 are provided at outer ends of one side of the support carrier 33, respectively, and two rotating members 52 are provided in the middle of one side of the support carrier 33, respectively. Of course, the rotating member 52 in this embodiment may be provided with one, and two clamping jaws 55 are provided on one rotating member 52, and are respectively fixedly connected with the two memory alloy wires 53. The other structure is the same as that of embodiment 1.

The working principle of the utility model is as follows:

when an external power source transmits an electrical signal to one of the memory alloy wires 53, the memory alloy wire 53 is deformed and shortened, so as to drive the rotating member 52 to rotate around the supporting member 54, and the rotating member 52 rotates to drive the rotating carrier 32 to rotate, so that the blade 1 is opened or closed, thereby adjusting the aperture size. When the blade 1 needs to be restored to the initial position, another memory alloy wire 53 is externally connected with a power supply, the memory alloy wire 53 is deformed and shortened, so that the rotating member 52 is driven to rotate in the opposite direction by taking the supporting member 54 as the center, and the rotating member 52 rotates to drive the rotating carrier 32 to rotate, so that the blade 1 is restored to the initial position.

Claims

1. An iris diaphragm image pickup drive device, comprising: comprises a blade (1), a carrier component (3), a guide piece (4) and a driving component (5);

the carrier assembly (3) comprises a fixed carrier (31), a rotating carrier (32) and a supporting carrier (33); the two ends of the blade (1) are respectively connected with the fixed carrier (31) and the rotating carrier (32); the fixed carrier (31) is connected with the support carrier (33), the rotating carrier (32) is arranged between the fixed carrier (31) and the support carrier (33), and a guide (4) is arranged between the rotating carrier (32) and the support carrier (33);

the driving assembly (5) comprises a fixed part (51), a rotating part (52), a memory alloy wire (53) and a supporting part (54), one end of the fixed part (51) is connected with one end of the rotating part (52) through the memory alloy wire (53), and the other end of the fixed part (51) is fixed on the supporting carrier (33); one end of the rotating member (52) is also connected with the supporting carrier (33) through the supporting member (54), and the other end of the rotating member (52) is connected with the rotating carrier (32) so as to drive the rotating carrier (32) to rotate relative to the supporting carrier (33).

2. The iris image pickup drive apparatus according to claim 1, wherein: a first boss (331) and a second boss (332) are arranged on the supporting carrier (33), a hole digging groove (333) is formed in the first boss (331), and the supporting piece (54) is located in the hole digging groove (333); the second boss (332) is used for fixing the fixing piece (51).

3. The iris image pickup drive apparatus according to claim 1, wherein: clamping jaws (55) are arranged at one end of the fixing piece (51) and one end of the rotating piece (52), and the clamping jaws (55) are fixed to two ends of the memory alloy wire (53).

4. The iris image pickup drive apparatus according to claim 1, wherein: the iris diaphragm image pickup driving device is provided with two groups of driving assemblies (5), and the two groups of driving assemblies (5) are arranged on the same side or the opposite side of the iris diaphragm image pickup driving device.

5. The iris image pickup drive apparatus according to claim 1, wherein: a retaining wall (334) is arranged on the supporting carrier (33), and the fixed carrier (31) and the supporting carrier (33) are fixed through the retaining wall (334); the fixed carrier (31) and the supporting carrier (33) are respectively provided with a through hole, and the rotating carrier (32) is arranged in the through holes.

6. The iris image pickup drive apparatus according to claim 5, wherein: the guide piece (4) is arranged between the inner side surface of a retaining wall (334) of the support carrier (33) and a groove (321) formed in the outer annular surface of the rotary carrier (32).

7. The iris image pickup drive apparatus according to claim 1, wherein: the rotary carrier is characterized by further comprising a light shielding sheet (2), wherein the light shielding sheet (2) is connected with the rotary carrier (32).

8. The iris image pickup drive apparatus according to claim 1, wherein: the device also comprises a protective shell, wherein the protective shell covers the outside of the support carrier (33).