CN111963834A - Micro image stabilization gimbal - Google Patents

Abstract

The invention discloses a miniature anti-shake micro-head. The miniature anti-shake head includes a camera module, a torsion spring and a first actuator assembly. The first actuator assembly is arranged on the side of the camera module. The device assembly includes a first rotating part, a first fixed part, a first memory alloy wire and a second memory alloy wire, the middle part of the first rotating part is fixedly connected with the connecting part, and the first fixed part is located on both sides of the first rotating part and fixedly arranged on the frame part; the first memory alloy wire is connected with the top of the first rotating part and with the first fixed part on one side; the second memory alloy wire is connected with the bottom of the first rotating part and is connected with the first fixed part on one side. The first fixed part on the other side is connected; the first memory alloy wire and the second memory alloy wire located on both sides of the first rotating part are energized and contracted at the same time to drive the first rotating part to rotate, and the first rotating part drives the camera module through the connecting part turn.

Description

Micro image stabilization gimbal

technical field

The invention relates to the technical field of camera equipment, in particular to a miniature anti-shake pan/tilt.

Background technique

In recent years, small mobile devices with fixed-focus wide-angle (viewing angle over 80 degrees) shooting function have become popular, and their applications have been expanding, including smart glasses, tablet computers, and aerial photography. When taking photos and photography, the photos and videos taken by the above devices are likely to be blurred or shaken by external vibrations, which will affect the quality of photos and videos. The problem is exacerbated when vibrations are high or in low light situations.

In order to solve the above problems, there are many anti-shake technologies on the market, among which the micro anti-shake gimbal is used for anti-shake. Micro-head anti-shake is to drive the entire camera module including lens and image sensor to move to achieve anti-shake effect. The driving force for driving the coil and the magnet is too small, and the volume occupied is also large, and the magnetism of the coil and the magnet will interfere with the image collection of the camera module.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a miniature anti-shake gimbal, which drives the camera module through memory alloy wires, not only driving force Larger and smaller, while not interfering with the camera module's collection of images.

The miniature anti-shake micro-head according to the embodiment of the present invention includes a camera module, a torsion spring and a first actuator assembly, the camera module is used for capturing images; the torsion spring includes a connection part, a frame part and a first actuator assembly. a torsion arm, the connection part is connected to the bottom of the camera module, the frame part frames the connection part therein, and the connection part is rotatably connected to the frame part through the first torsion arm; The first actuator assembly is arranged on the side of the camera module, and the first actuator assembly includes a first rotating part, a first fixing part, a first memory alloy wire and a second memory alloy wire, so The middle part of the first rotating part is fixedly connected with the connecting part, the first fixed parts are located on both sides of the first rotating part; the first memory alloy wire is connected with the top of the first rotating part and connected with the first fixed part on one side, the second memory alloy wire is connected with the bottom of the first rotating part and connected with the first fixed part on the other side; The first memory alloy wire and the second memory alloy wire on both sides of the first rotating part are simultaneously energized and contracted to drive the first rotating part to rotate, and the first rotating part drives the camera module to rotate through the connecting part.

The miniature anti-shake gimbal according to the embodiment of the present invention has at least the following technical effects: the first actuator assembly is disposed on the side of the camera module, the first memory alloy wire is connected to the top of the first rotating part and is connected to one side of the camera module. The second memory alloy wire is connected to the bottom of the first rotating part and is connected to the first fixed part on the other side. When the first memory alloy wire located on both sides of the first rotating part and When the second memory alloy wire is energized and contracted at the same time, the force generated by the memory alloy wire on the first rotating part will make the first rotating part rotate, the first rotating part is fixedly connected with the connecting part of the torsion spring, and the connecting part is in turn connected with the camera module Fixed connection, so the rotation of the first rotating part will drive the connecting part and the camera module to rotate together, so as to quickly adjust the position of the camera module and play the role of anti-shake. With this arrangement, compared with the arrangement of the coil and the magnet, the miniature anti-shake gimbal of the present invention can make the imaging device smaller in size and lighter in weight, and by controlling the shrinkage of the first memory alloy wire and the second memory alloy wire The degree of control of the camera module can be more precise, and it will not generate magnetic interference to the camera equipment.

According to some embodiments of the present invention, the first rotating part includes a first plate part and a second plate part, the first plate part is fixedly connected with the top wall of the connecting part, and the second plate part is connected to the top wall of the connecting part. The bottom wall of the connecting portion is fixedly connected; the first plate member protrudes upward and then is bent outward to form a first wire clip, and the second plate member protrudes downward and is bent outward to form a first wire clip. A second wire clip; the first wire clip is fixedly connected to the first memory alloy wire, and the second wire clip is fixedly connected to the second memory alloy wire.

According to some embodiments of the present invention, the first fixing part includes a third plate part and a fourth plate part, the third plate part is fixedly connected to the top wall of the frame part, and the fourth plate part is connected to the top wall of the frame part. The bottom wall of the frame portion is fixedly connected; the third plate protrudes upwards and then bends outward to form a third wire clip, and the fourth plate protrudes downwards and then bends outward to form a fourth wire clip. a wire clip; the third wire clip is fixedly connected to the first memory alloy wire, and the fourth wire clip is fixedly connected to the second memory alloy wire.

According to some embodiments of the present invention, a second actuator assembly is further included, the second actuator assembly is disposed on the torsion spring and is located on an adjacent side of the first actuator assembly; the The second actuator assembly includes a second rotating part, a second fixing part, a third memory alloy wire and a fourth memory alloy wire, the middle part of the second rotating part is fixedly connected with the frame part, and the first Two fixed parts are located on both sides of the second rotating part; the third memory alloy wire is connected to the top of the second rotating part and is connected to the second fixed part on one side; the fourth memory alloy wire is connected to the top of the second rotating part The memory alloy wire is connected to the bottom of the second rotating part and is connected to the second fixed part on the other side; the third memory alloy wire and the fourth memory alloy are located on both sides of the second rotating part The alloy wire is energized and contracted at the same time to drive the second rotating part to rotate, and the second rotating part drives the connecting part to rotate through the frame part.

According to some embodiments of the present invention, the torsion spring further includes a fixing plate and a second torsion arm, the second fixing portion is fixedly arranged on the fixing plate, and the fixing plate frames the frame portion therein , the frame portion is rotatably connected with the fixed plate through the second torsion arm.

According to some embodiments of the present invention, the second rotating part further includes a fifth plate part and a sixth plate part, the fifth plate part is fixedly connected with the top wall of the frame part, and the sixth plate part It is fixedly connected with the bottom wall of the frame part, the middle part of the fifth plate protrudes upwards and then bends outward to form a fifth wire clip, and the middle part of the sixth plate part protrudes downwards and then outwards A sixth wire clip is formed by bending; the fifth wire clip is fixedly connected with the third memory alloy wire, and the sixth wire clip is fixedly connected with the fourth memory alloy wire.

According to some embodiments of the present invention, the second fixing part further includes a seventh plate member and an eighth plate member, the seventh plate member is fixedly connected to the top wall of the fixing plate, and the eighth plate member It is fixedly connected with the bottom wall of the fixing plate; the seventh plate protrudes upward and then is bent outward to form a seventh wire clip, and the eighth plate protrudes downward and is bent outward to form a seventh wire clip. There is an eighth wire clip, the seventh wire clip is fixedly connected with the third memory alloy wire, and the eighth wire clip is fixedly connected with the fourth memory alloy wire.

According to some embodiments of the present invention, it further includes a base, the base is fixedly connected with the torsion spring, the base is concavely formed with an accommodating cavity, and the bottom wall of the accommodating cavity is protruded upward and provided with a first a protrusion, the first protrusion abuts against the bottom surface of the connecting part.

According to some embodiments of the present invention, the top of the first protrusion protrudes upward and is provided with a second protrusion, the second protrusion is in contact with the bottom surface of the connecting portion, and the first protrusion passes through the The second protrusion is in contact with the bottom surface of the connecting portion.

According to some embodiments of the present invention, the bottom wall of the accommodating cavity is provided with a plurality of groups of third protrusions protruding upward, a plurality of the third protrusions are arranged around the first protrusions, and the third protrusions The top of the first protrusion is lower than the top of the first protrusion.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above-described additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments in conjunction with the accompanying drawings, wherein:

1 is a schematic diagram of the overall structure of a miniature anti-shake gimbal according to an embodiment of the present invention;

2 is a schematic diagram of the internal structure of a miniature anti-shake gimbal according to an embodiment of the present invention;

3 is a schematic diagram showing the separation of the internal structure of a miniature anti-shake gimbal according to an embodiment of the present invention;

4 is a schematic structural diagram of a torsion spring and actuator assembly according to an embodiment of the present invention;

5 is a schematic structural diagram of a torsion spring according to an embodiment of the present invention;

6 is a schematic structural diagram of the first plate, the third plate and the fifth plate according to an embodiment of the present invention;

7 is a schematic structural diagram of the second plate, the fourth plate, and the sixth plate according to an embodiment of the present invention;

8 is a schematic diagram of a base structure according to an embodiment of the present invention;

FIG. 9 is a schematic diagram of a first protrusion structure according to an embodiment of the present invention.

Reference number:

The camera module 100, the torsion spring 200, the connection part 210, the frame part 220, the fixing plate 230, the first torsion arm 240, the second torsion arm 250,

The first rotating part 310, the first fixing part 320, the first memory alloy wire 330, the second memory alloy wire 340,

The second rotating part 410, the second fixing part 420, the third memory alloy wire 430, the fourth memory alloy wire 440,

First plate 510, first clip 511, second plate 520, second clip 521, third plate 530, third clip 531, fourth plate 540, fourth clip 541, fifth plate 550, the fifth clip 551, the sixth plate 560, the sixth clip 561, the seventh plate 570, the seventh clip 571, the eighth plate 580, the eighth clip 581,

The base 600 , the accommodating cavity 610 , the first protrusion 620 , the second protrusion 621 , the third protrusion 630 , and the IC controller 700 .

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the azimuth description, such as the azimuth or position relationship indicated by up, down, front, rear, left, right, etc., is based on the azimuth or position relationship shown in the drawings, only For the convenience of describing the invention and simplifying the description, it is not indicated or implied that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

A miniature anti-shake gimbal according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 9 .

For example, as shown in FIG. 2 and FIG. 3 , the miniature anti-shake gimbal according to an embodiment of the present invention includes a camera module 100 , a torsion spring 200 and a first actuator assembly, wherein the camera module 100 is used for capturing images, and the torsion spring 200 is used for capturing images. It includes a connecting portion 210 , a frame portion 220 and a first torsion arm 240 . The connecting portion 210 is connected to the bottom of the camera module 100 , the frame portion 220 frames the connecting portion 210 , and the connecting portion 210 is connected to the frame through the first torsion arm 240 . The first actuator assembly is disposed on the side of the camera module 100, and the first actuator assembly includes a first rotating part 310, a first fixing part 320, a first memory alloy wire 330 and a second memory alloy Line 340, the middle part of the first rotating part 310 is fixedly connected with the connecting part 210, the first fixed part 320 is located on both sides of the first rotating part 310; the first memory alloy wire 330 is connected with the top of the first rotating part 310 and is connected with The first fixed part 320 on one side is connected, the second memory alloy wire 340 is connected with the bottom of the first rotating part 310 and connected with the first fixed part 320 on the other side; The first memory alloy wire 330 and the second memory alloy wire 340 are simultaneously energized and contracted to drive the first rotating part 310 to rotate, and the first rotating part 310 drives the camera module 100 to rotate through the connecting part 210 .

For example, as shown in FIG. 2 and FIG. 3 , the camera module 100 is connected to the connecting portion 210 of the torsion spring 200 , the first actuator assembly is disposed on the side of the camera module 100 , and the first rotating portion 310 of the first actuator assembly It is fixedly connected to the connecting portion 210 of the torsion spring 200 , and the first fixed end is disposed at both ends of the first rotating portion 310 and is fixedly connected to the frame portion 220 . The first memory alloy wire 330 is connected to the top of the first rotating part 310 and is connected to the first fixing part 320 on one side, and the second memory alloy wire 340 is connected to the bottom of the first rotating part 310 and is connected to the other side When the first memory alloy wire 330 and the second memory alloy wire 340 located on both sides of the first rotating part 310 are energized and contracted at the same time, the force generated by the memory alloy wire on the first rotating part 310 will be The first rotating part 310 is made to rotate with the first torsion arm 240 as the rotating shaft, the first rotating part 310 is fixedly connected with the connecting part 210 of the torsion spring 200, and the connecting part 210 is fixedly connected with the camera module 100, so the first rotating part The rotation of the 310 will drive the connecting portion 210 and the camera module 100 to rotate together, so as to quickly adjust the position of the camera module 100 and play the role of anti-shake.

It is easy to understand that, two first memory alloy wires 330 may be provided on the same side of the lens assembly, and the two first memory alloy wires 330 are respectively connected to the first rotating part 310 and the first fixing part 320 and located at the first rotating part 310 . Both sides of the portion 310 are provided. It is also possible to provide only one, so that the middle part of the first memory alloy wire 330 is fixedly connected to the first rotating part 310 , and the two ends of the first memory alloy wire 330 are connected to the first fixed part 320 respectively. The arrangement of the second memory alloy wires 340 is the same.

With this arrangement, compared with the arrangement of coils and magnets, the miniature anti-shake gimbal of the present invention can make the camera equipment smaller in size and lighter in weight, and by controlling the first memory alloy wire 330 and the second memory alloy wire 340 The degree of shrinkage of the camera can control the camera module 100 more accurately, and will not generate magnetic interference to the camera device.

In some specific embodiments of the present invention, the first rotating part 310 includes a first plate part 510 and a second plate part 520 , the first plate part 510 is fixedly connected to the top wall of the connecting part 210 , and the second plate part 520 is connected to the top wall of the connecting part 210 . The bottom wall of the connecting portion 210 is fixedly connected; the first plate 510 protrudes upwards and then bends outward to form a first wire clip 511 , and the second plate 520 protrudes downwards and then bends outward to form a second wire Clip 521 ; the first clip 511 is fixedly connected to the first memory alloy wire 330 , and the second clip 521 is fixedly connected to the second memory alloy wire 340 .

For example, as shown in FIGS. 3 and 4 , the first rotating portion 310 further includes a first plate member 510 and a second plate member 520 , the first plate member 510 is fixedly connected to the top wall of the connecting portion 210 , and the second plate member 520 is connected to the top wall of the connecting portion 210 . The bottom wall of the connecting portion 210 is fixedly connected; the first plate 510 protrudes upwards and then bends outward to form a first wire clip 511 , and the second plate 520 protrudes downwards and then bends outward to form a second wire Clip 521 ; the first clip 511 is fixedly connected to the first memory alloy wire 330 , and the second clip 521 is fixedly connected to the second memory alloy wire 340 .

The first memory alloy wire 330 connects the first wire clip 511 and the first fixing part 320 , and the second memory alloy wire 340 connects the second wire clip 521 and the first fixing part 320 . When the alloy wire 330 and the second memory alloy wire 340 are energized and contracted, the resultant moment generated by the force of the first memory alloy wire 330 and the second memory alloy wire 340 drives the first rotating part 310 to rotate, and the first rotating part 310 drives it The connected connecting portion 210 rotates, and the rotation of the connecting portion 210 drives the camera module 100 to rotate.

The first rotating part 310 is arranged by sandwiching the connecting part 210 between the first plate 510 and the second plate 520 , which facilitates the installation and assembly of the miniature anti-shake gimbal. It is easy to understand that, for the current production and processing, the installation of the equipment is the easiest and fastest to use the straight-up and straight-down installation of the machine, while in the prior art, the actuator components of the camera equipment are mostly arranged on the camera module 100. Side, installation on the side setting requires the machine to be installed on the side. However, the current machine is difficult to install on the side, the efficiency is not high, and the accuracy is difficult to grasp. Therefore, through this installation method of the embodiment of the present invention, the second plate 520 can be installed first, and then the second plate 520 can be installed. After finishing, install the torsion spring 200, and then install the first plate 510. In this way, the driving effect of the first actuator assembly on the camera module 100 is not affected, and the installation of the miniature anti-shake gimbal is facilitated. Speeding up the installation of the miniature anti-shake gimbal can also reduce the cost of installing the machine. It is easy to understand that the cost of the machine installed on the side is higher than that of the machine installed straight up and down, and the installation straight up and down is also conducive to the accuracy of the machine control and installation, and it is not easy to produce errors. At the same time, the arrangement of the first wire clip 511 and the second wire clip 521 can ensure the stability of the connection between the first memory alloy wire 330 and the second memory alloy wire 340 .

In some specific embodiments of the present invention, the first fixing part 320 includes a third plate part 530 and a fourth plate part 540 , the third plate part 530 is fixedly connected to the top wall of the frame part 220 , and the fourth plate part 540 is connected to the top wall of the frame part 220 . The bottom wall of the frame portion 220 is fixedly connected; the third plate member 530 protrudes upwards and then bends outward to form a third wire clip 531 , and the fourth plate member 540 protrudes downwards and then bends outward to form a fourth wire clip 541 ; the third wire clip 531 is fixedly connected to the first memory alloy wire 330 , and the fourth wire clip 541 is fixedly connected to the second memory alloy wire 340 .

For example, as shown in FIGS. 3 and 4 , the first fixing part 320 includes a third plate 530 and a fourth plate 540 , the third plate 530 is fixedly connected to the top wall of the frame part 220 , and the fourth plate 540 is connected to the frame The bottom wall of the part 220 is fixedly connected; the third plate 530 protrudes upward and then bends outward to form a third wire clip 531 , and the fourth plate 540 protrudes downward and then bends outward to form a fourth wire clip 541 ; The third wire clip 531 is fixedly connected with the first memory alloy wire 330 , and the fourth wire clip 541 is fixedly connected with the second memory alloy wire 340 . The arrangement of the third plate 530 and the fourth plate 540 is the same as that of the first plate 510 and the second plate 520 , both of which are for the convenience of machine installation. The stability and firmness of the connection between the first memory alloy wire 330 and the second memory alloy wire 340 are ensured.

In some specific embodiments of the present invention, a second actuator assembly is also included, and the second actuator assembly is disposed on the torsion spring 200 and is located on the adjacent side of the first actuator assembly; the second actuator assembly The device assembly includes a second rotating part 410, a second fixing part 420, a third memory alloy wire 430 and a fourth memory alloy wire 440. The middle part of the second rotating part 410 is fixedly connected to the frame part 220, and the second fixing part 420 is located at Both sides of the second rotating part 410 ; the third memory alloy wire 430 is connected to the top of the second rotating part 410 and is connected to the second fixed part 420 on one side; the fourth memory alloy wire 440 is connected to the second rotating part 410 The bottom is connected to the second fixed part 420 on the other side; the third memory alloy wire 430 and the fourth memory alloy wire 440 located on both sides of the second rotating part 410 are energized and contracted at the same time to drive the second rotating part 410 to rotate , the second rotating part 410 drives the connecting part 210 to rotate through the frame part 220 .

For example, as shown in Figures 2 and 3, the second actuator assembly is disposed on the torsion spring 200 on an adjacent side to the first actuator assembly. The second actuator assembly includes a second rotating part 410 , a second fixing part 420 , a third memory alloy wire 430 and a fourth memory alloy wire 440 . The middle part of the second rotating part 410 is fixedly connected to the frame part 220 , and the frame part 220 is also fixedly connected to the connecting portion 210 through the first torsion arm 240 . The second fixed portion 420 is located on both sides of the second rotating portion 410 , the third memory alloy wire 430 is connected to the top of the second rotating portion 410 and is connected to the second fixed portion 420 on one side, and the fourth memory alloy wire 440 It is connected with the bottom of the second rotating part 410 and connected with the second fixing part 420 on the other side. The third memory alloy wire 430 and the fourth memory alloy wire 440 are simultaneously energized and contracted to drive the second rotating part 410 to rotate, and the second rotating part 410 drives the connecting part 210 to rotate through the frame part 220 .

Furthermore, the torsion spring 200 is also provided with an IC controller 700 , and the miniature anti-shake pan/tilt head can be driven by controlling the first actuator assembly and the second actuator assembly through the IC controller 700 .

This arrangement enables the second actuator assembly to drive the camera module 100 to move quickly and accurately, which facilitates the adjustment of the position of the camera module 100 to achieve the technical effect of anti-shake. At the same time, the second actuator assembly and the first actuator assembly are arranged on the adjacent surfaces of the camera module 100, so that the camera module 100 can be adjusted in more directions, which facilitates the adjustment of the position of the camera module 100 and achieves better anti-shake. Effect.

In some specific embodiments of the present invention, the torsion spring 200 further includes a fixing plate 230 and a second torsion arm 250. The second fixing portion 420 is fixedly arranged on the fixing plate 230, and the fixing plate 230 frames the frame portion 220 therein. The frame portion 220 is rotatably connected to the fixing plate 230 through the second torsion arm 250 .

For example, as shown in FIG. 3 and FIG. 5 , the torsion spring 200 further includes a fixing plate 230 and a second torsion arm 250 , the second fixing portion 420 is fixedly arranged on the fixing plate 230 , and the fixing plate 230 can be fixedly arranged on the base 600 to keep the position stability. The middle of the fixing plate 230 is hollow and the frame portion 220 is framed therein, and is rotatably connected to the fixing plate 230 through the second torsion arm 250 . When the second actuator assembly drives the frame portion 220 to rotate, the second torsion arm 250 can function as a rotating shaft, and the second torsion arm 250 has a certain elasticity, which facilitates the frame portion 220 to drive the connecting portion 210 and the camera module 100 reset.

In some specific embodiments of the present invention, the second rotating part 410 further includes a fifth plate 550 and a sixth plate 560 , the fifth plate 550 is fixedly connected to the top wall of the frame part 220 , and the sixth plate 560 Fixedly connected with the bottom wall of the frame portion 220 , the middle portion of the fifth plate member 550 protrudes upwards and then bends outward to form a fifth wire clip 551 , and the middle portion of the sixth plate member 560 protrudes downwards and then bends outwards. A sixth wire clip 561 is provided; the fifth wire clip 551 is fixedly connected to the third memory alloy wire 430 , and the sixth wire clip 561 is fixedly connected to the fourth memory alloy wire 440 .

For example, as shown in FIGS. 3 and 4 , the second rotating part 410 further includes a fifth plate 550 and a sixth plate 560 , the five plates are fixedly connected to the top wall of the frame part 220 , and the sixth plate 560 is connected to the frame part The bottom wall of 220 is fixedly connected, the middle part of the fifth plate 550 protrudes upwards and then bends outward to form a fifth wire clip 551, and the middle part of the sixth plate 560 protrudes downwards and then bends outward to form a The sixth wire clip 561 . The arrangement of the fifth plate 550 and the sixth plate 560 is the same as the arrangement of the first plate 510 and the second plate 520 , which facilitates the installation of the second rotating part 410 and the installation position is more precise.

The arrangement of the fifth wire clip 551 and the sixth wire clip 561 facilitates the connection of the third memory alloy wire 430 and the fourth memory alloy wire 440, so that the positions of the third memory alloy wire 430 and the fourth memory alloy wire 440 are kept stable, And it is also beneficial to the installation of the third memory alloy wire 430 and the fourth memory alloy wire 440 .

In some specific embodiments of the present invention, the second fixing portion 420 further includes a seventh plate 570 and an eighth plate 580 , the seventh plate 570 is fixedly connected to the top wall of the fixing plate 230 , and the eighth plate 580 It is fixedly connected with the bottom wall of the fixing plate 230; the seventh plate 570 protrudes upward and then is bent outward to form a seventh wire clip 571, and the eighth plate 580 protrudes downward and is bent outward to form a seventh wire clip Eight wire clips 581 , the seventh wire clip 571 are fixedly connected to the third memory alloy wire 430 , and the eighth wire clip 581 is fixedly connected to the fourth memory alloy wire 440 .

For example, as shown in FIGS. 3 and 4 , the second fixing portion 420 further includes a seventh plate 570 and an eighth plate 580 , the seventh plate 570 is fixedly connected to the top wall of the fixing plate 230 , and the eighth plate 580 is connected to the top wall of the fixing plate 230 . The bottom wall of the fixing plate 230 is fixedly connected. The arrangement of the first plate 510 and the second plate 520 on the first plate 510 and the second plate 520 is the same, which facilitates the installation of the second fixing portion 420 and the installation of the miniature anti-shake gimbal. At the same time, the arrangement of the seventh wire clip 571 and the eighth wire clip 581 facilitates the stable position of the third memory alloy wire 430 and the fourth memory alloy wire 440, and is also beneficial to the third memory alloy wire 430 and the fourth memory alloy wire 440. installation.

In some specific embodiments of the present invention, the miniature anti-shake gimbal further includes a base 600, the base 600 is fixedly connected with the torsion spring 200, the base 600 is concavely formed with an accommodating cavity 610, and the bottom wall of the accommodating cavity 610 protrudes upwards A first protrusion 620 is disposed on the outer side, and the first protrusion 620 is in contact with the bottom surface of the connecting portion 210 .

For example, as shown in FIG. 3 and FIG. 8 , the base 600 is fixedly connected to the fixing plate 230 of the torsion spring 200 to fix the torsion spring 200 on the base 600 . An accommodating cavity 610 is formed concavely at the bottom. The bottom wall of the accommodating cavity 610 is provided with a first protrusion 620 protruding upward. The first protrusion 620 abuts with the bottom surface of the connecting portion 210 .

This arrangement facilitates the positional fixation of the torsion spring 200, and at the same time the first protrusion 620 abuts against the bottom surface of the connecting portion 210. Further, the first protrusion 620 abuts against the middle portion of the connecting portion 210, so that the The connecting portion 210 can be rotated by taking the contact point between the first protrusion 620 and the connecting portion 210 as the rotation fixed point. It is easy to understand that the connection portion 210 is fixedly connected with the camera module 100 and mainly plays the role of driving the camera module 100 to rotate. The rotation of the rotating part 100 is more flexible and stable, and at the same time, it can play a supporting role for the rotating part 210 and the camera module 100 .

When the first actuator assembly and the second actuator assembly drive the connection portion 210 to drive the camera module 100 to rotate, the apex of the first protrusion 620 is used as the rotation point to rotate, which can ensure that the camera module 100 rotates more stably. Furthermore, when the miniature anti-shake gimbal is installed, a pre-pressure can be applied to the connecting portion 210 so that the connecting portion 210 and the first protrusion 620 are in close contact with each other. At the same time, the first protrusion 620 can support and limit the rotating part 210 and the camera module 100 in a vertical direction, so as to prevent the connection part 210 and the camera module 100 from falling down under the action of gravity and the positional deviation cannot be good. of the collection of images occurs. Further, the shape of the first protrusion 620 is hemispherical.

In some specific embodiments of the present invention, the top of the first protrusion 620 protrudes upward and is provided with a second protrusion 621 , the second protrusion 621 is in contact with the bottom surface of the connecting portion 210 , and the first protrusion 620 passes through the second protrusion 621 . The protrusions 621 are in contact with the bottom surface of the connecting portion 210 .

For example, as shown in FIG. 8 and FIG. 9 , the top of the first protrusion 620 protrudes upward and is provided with a second protrusion 621 , and the first protrusion 620 abuts against the bottom surface of the connecting portion 210 through the second protrusion 621 . Both the second protrusion 621 and the first protrusion 620 are hemispherical, and the radius of the second protrusion 621 is much smaller than that of the first protrusion 620 , so that the area of the point where the connecting portion 210 contacts the first protrusion 620 is smaller, so that the The area of the fixed point of rotation of the connection part 210 can be smaller, which is beneficial to the precise rotation of the connection part 210 , thereby driving the camera module 100 to rotate accurately.

Furthermore, the first protrusion 620 and the second protrusion 621 are integrally formed, and can be punched out at one time during the production process, which is convenient for production and manufacture. Furthermore, the second protrusion 621 may be further provided with a protrusion with a smaller shape or radius to abut against the connecting portion 210 , so that the connecting portion 210 can be rotated at a smaller rotational fixed point. It is easy to understand that, in the production and processing process, it is more convenient to make contact points with a small area by setting the contact points with a small area in multiple stages, and it is more conducive to the stability of the structure, and the multi-level formation is more convenient. Contact points with smaller areas can also be directly formed by a single punch, which is also easy to process.

In some specific embodiments of the present invention, the bottom wall of the accommodating cavity 610 is provided with a plurality of groups of third protrusions 630 protruding upward, and the plurality of third protrusions 630 are disposed around the first protrusion 620, and the third protrusions 630 are The top is lower than the top of the first protrusion 620 .

For example, as shown in FIG. 8 , the bottom wall of the accommodating cavity 610 is provided with four groups of third protrusions 630 protruding upward, and the four groups of third protrusions 630 are arranged around the first protrusion 620 and the top of the third protrusion 630 is lower than the The top of a protrusion 620. Furthermore, the shape of the third protrusion 630 is hemispherical.

By setting in this way, the connection part 210 can be limited to a certain extent. When the connection part 210 rotates to a certain extent, it will not be able to rotate because it hits the third protrusion 630, so that the rotation of the connection part 210 is controlled to a certain degree. within the range.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. The utility model provides a miniature anti-shake cloud platform which characterized in that includes:

a camera module for capturing an image;

the camera module comprises a camera module, a frame part and a torsion spring, wherein the camera module comprises a camera module body, a camera module body and a camera module cover, the camera module body is provided with a camera module, the torsion spring comprises a connecting part, the frame part and a first torsion arm, the connecting part;

the first actuator assembly is arranged on the side face of the camera module and comprises a first rotating portion, a first fixing portion, a first memory alloy wire and a second memory alloy wire, the middle of the first rotating portion is fixedly connected with the connecting portion, and the first fixing portions are located on two sides of the first rotating portion and fixedly arranged on the frame portion; the first memory alloy wire is connected with the top of the first rotating part and the first fixing part on one side, and the second memory alloy wire is connected with the bottom of the first rotating part and the first fixing part on the other side; the first memory alloy wire and the second memory alloy wire which are positioned on two sides of the first rotating portion are electrified and contracted simultaneously to drive the first rotating portion to rotate, and the first rotating portion drives the camera module to rotate through the connecting portion.

2. The micro anti-shake pan/tilt head according to claim 1, wherein the first rotating portion comprises a first plate and a second plate, the first plate is fixedly connected to the top wall of the connecting portion, and the second plate is fixedly connected to the bottom wall of the connecting portion; the first plate protrudes upwards and then is bent outwards to form a first wire clamp, and the second plate protrudes downwards and then is bent outwards to form a second wire clamp; the first wire clamp is fixedly connected with the first memory alloy wire, and the second wire clamp is fixedly connected with the second memory alloy wire.

3. The micro anti-shake cradle head according to claim 1, wherein the first fixing portion comprises a third plate fixedly connected to the top wall of the frame and a fourth plate fixedly connected to the bottom wall of the frame; the third plate protrudes upwards and is bent outwards to form a third wire clamp, and the fourth plate protrudes downwards and is bent outwards to form a fourth wire clamp; the third wire clamp is fixedly connected with the first memory alloy wire, and the fourth wire clamp is fixedly connected with the second memory alloy wire.

4. The micro anti-shake cradle head according to claim 1, further comprising a second actuator assembly disposed on the torsion spring and on an adjacent side of the first actuator assembly; the second actuator assembly comprises a second rotating part, a second fixing part, a third memory alloy wire and a fourth memory alloy wire, the middle part of the second rotating part is fixedly connected with the frame part, and the second fixing part is positioned on two sides of the second rotating part; the third memory alloy wire is connected with the top of the second rotating part and the second fixing part on one side, and the fourth memory alloy wire is connected with the bottom of the second rotating part and the second fixing part on the other side; the third memory alloy wire and the fourth memory alloy wire which are positioned on two sides of the second rotating portion are electrified and contracted simultaneously to drive the second rotating portion to rotate, and the second rotating portion drives the connecting portion to rotate through the frame portion.

5. The miniature anti-shake tripod head according to claim 4, wherein the torsion spring further comprises a fixing plate and a second torsion arm, the second fixing portion is fixedly disposed on the fixing plate, the fixing plate frames the frame portion, and the frame portion is rotatably connected to the fixing plate through the second torsion arm.

6. The micro anti-shake tripod head according to claim 4, wherein the second rotating portion further comprises a fifth plate and a sixth plate, the fifth plate is fixedly connected with the top wall of the frame, the sixth plate is fixedly connected with the bottom wall of the frame, the middle portion of the fifth plate protrudes upward and is bent outward to form a fifth wire clamp, and the middle portion of the sixth plate protrudes downward and is bent outward to form a sixth wire clamp; the fifth wire clamp is fixedly connected with the third memory alloy wire, and the sixth wire clamp is fixedly connected with the fourth memory alloy wire.

7. The micro anti-shake cradle head according to claim 5, wherein the second fixing portion further comprises a seventh plate and an eighth plate, the seventh plate is fixedly connected to the top wall of the fixing plate, and the eighth plate is fixedly connected to the bottom wall of the fixing plate; the seventh plate protrudes upwards and then is bent outwards to form a seventh wire clamp, the eighth plate protrudes downwards and then is bent outwards to form an eighth wire clamp, the seventh wire clamp is fixedly connected with the third memory alloy wire, and the eighth wire clamp is fixedly connected with the fourth memory alloy wire.

8. The miniature anti-shake tripod head according to claim 1, further comprising a base, wherein the base is fixedly connected to the torsion spring, the base is inwardly recessed to form an accommodating cavity, a bottom wall of the accommodating cavity is upwardly protruded to form a first protrusion, and the first protrusion abuts against a bottom surface of the connecting portion.

9. The miniature anti-shake tripod head according to claim 8, wherein a second protrusion protrudes upwards from a top of the first protrusion, the second protrusion abuts against a bottom surface of the connecting portion, and the first protrusion abuts against the bottom surface of the connecting portion through the second protrusion.

10. The miniature anti-shake tripod head according to claim 8, wherein the bottom wall of the accommodating chamber is provided with a plurality of sets of third protrusions protruding upwards, the plurality of third protrusions are arranged around the first protrusion, and the top of the third protrusions is lower than the top of the first protrusion.

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