Anti-shake gimbal

Abstract

The present invention discloses an anti-shake gimbal, comprising a shell, a carrier, a magnet group, a circuit board, a support body, a lower spring sheet and a base, wherein the carrier is provided with a lens module installation chamber for installing a lens module, the magnet group is fixedly installed on the shell or the base, the circuit board is installed on the outer side wall of the carrier and cooperates with the magnet group, the lower spring sheet movably connects the carrier and the base, and the support body is installed between the base and the carrier to rotatably support the carrier on the base. The present invention can drive the entire lens module including the lens and the image sensor to make a movement opposite to the vibration direction but close to the amplitude, thereby offsetting the shaking caused by the vibration.

Description

Technical Field

[0001] The present invention relates to the field of pan / tilt platforms, and in particular to an anti-shake pan / tilt platform. Background Art

[0002] In recent years, mobile devices with fixed-focus wide-angle (viewing angle over 80 degrees) shooting functions have become very popular, and their application scope has been continuously expanded, including aerial photography, sports cameras, and dashcams. When taking photos and videos, it is very likely that they will be blurred or shaken due to external vibrations, affecting the quality of photos and videos. This problem will be more serious when the vibration is more intense or in low light conditions.

[0003] In order to solve the above problems, many existing anti-shake technologies have appeared in the market. The mainstream existing technologies read vibration sensors (such as gyroscopes and acceleration sensors), calculate the vibration waveform and the required compensation angle, and compensate for the image blur and shaking caused by vibration through electronic, optical, or mechanical methods to achieve the effect of improving image quality.

[0004] The existing technology mainly includes an electronic image stabilizer (EIS) and an optical image stabilizer (OIS) according to the vibration compensation method.

[0005] EIS is an electronic method to achieve the anti-shake effect. When shooting, EIS will adjust the position of each frame of the image according to the calculated vibration waveform to offset the image shake caused by vibration. Since EIS does not require additional actuators, the main advantages of EIS are low cost and no additional weight and volume. The main disadvantage of EIS is that it cannot compensate for the image shake in each frame. This is because EIS offsets the image shake caused by vibration by adjusting the position of each image. Therefore, the image taken after EIS is turned on will be more likely to be blurred due to image shake. Another disadvantage of EIS is that the resolution of the image sensor is sacrificed. When EIS is turned on, the image sensor or image processor needs to cut the appropriate image according to the calculated vibration waveform as the final image. During the cutting process, the resolution will decrease, and the final image will be lower than the maximum resolution of the image and sensor. Therefore, EIS will sacrifice the maximum resolution of the image sensor and reduce the image quality. Compared with EIS, the main disadvantage of OIS is that it requires additional actuators, so it requires higher additional costs, larger additional space, and higher additional weight.

[0006] OIS uses an actuator to move an optical component (which can be a lens, a group of lenses, or all lenses in a camera) through optical and mechanical methods to achieve relative movement between the optical component and the image sensor, change the optical path and the position of the image circle, and offset the image shake caused by vibration. Since OIS continuously makes optical compensation in each frame of the image, it can offset the shake when each frame is exposed, and can achieve better image quality than EIS. The main disadvantage of OIS is that it sacrifices part of the optical resolution of the lens. During the OIS process, the position of the image circle on the image sensor will continue to change. In order to prevent the image circle from exceeding the image sensor during the OIS process, the image circle must be expanded due to OIS, but this will waste the resolution that the lens should have. On the other hand, during the OIS process, when the position of the image circle is more biased, the edge of the image circle will be closer to the image sensor. Since the blur and distortion at the edge of most lenses are more serious than the center, the image resolution and anti-shake effect of OIS are generally not as good as GS. This problem is more obvious in wide-angle camera modules. Summary of the invention

[0007] The purpose of the present invention is to provide an anti-shake pan / tilt platform to solve the above problems in the prior art.

[0008] In order to solve the above-mentioned problem, according to one aspect of the present invention, there is provided an anti-shake gimbal, which includes a shell, a carrier, a magnet group, a circuit board, a support body, a lower spring leaf and a base, the carrier is provided with a lens module mounting chamber for mounting the lens module, the magnet group is fixedly mounted on the shell or the base, the circuit board is mounted on the outer side wall of the carrier and cooperates with the magnet group, the lower spring leaf movably connects the carrier and the base, and the support body is installed between the base and the carrier to rotatably support the carrier on the base.

[0009] In one embodiment, the bottom of the carrier is provided with a carrier embedded metal sheet, the base is provided with a base embedded metal sheet, and the support body includes a first surface facing the carrier and a second surface facing the base, the first surface is rotatably matched with the carrier embedded metal sheet, and the second surface is rotatably matched with the base embedded metal sheet.

[0010] In one embodiment, the metal sheet embedded in the base can be rotatably matched with the second surface of the support body by means of grooves and protrusions, and the metal sheet embedded in the carrier can be rotatably matched with the first surface of the support body by means of grooves and protrusions.

[0011] In one embodiment, the base embedded metal sheet and the carrier embedded metal sheet are arranged perpendicular to each other.

[0012] In one embodiment, the first surface of the support body is provided with at least two first protrusions to cooperate with the carrier embedded metal sheet, and the second surface of the support body is provided with at least two second protrusions to cooperate with the base embedded metal sheet.

[0013] In one embodiment, the support body has a disc-shaped body, and a line connecting the at least two first protrusions and a line connecting the at least two second protrusions pass through the center of the disc-shaped body and are perpendicular to each other.

[0014] In one embodiment, a side of the carrier facing the base forms a closed bottom, and the bottom is provided with a reed fixing portion protruding toward the base, and the reed fixing portion is fixedly connected to the inner circle of the reed.

[0015] In one embodiment, the bottom of the carrier is further provided with a support body matching portion, the carrier embedded metal sheet is installed on the support body matching portion, and the spring fixing portion includes an annular body, and the support body matching portion is arranged in the annular body.

[0016] In one embodiment, the support body matching portion has a long strip shape and passes through the center of the annular body of the spring fixing portion, and the surface of the carrier embedded metal sheet facing the support body is provided with a carrier embedded metal sheet groove to match with the first protrusion of the support body.

[0017] In one embodiment, the base includes a rectangular plate body, the rectangular plate body having an upper surface facing the carrier and a lower surface away from the carrier, the upper surface is provided with a first base protrusion and a second base protrusion, the first base protrusion extends along the circumference of a part of the rectangular plate body, the second base protrusion is arranged in the middle of the rectangular plate body and biased toward one of the end portions, wherein one side of the first base protrusion and the second base protrusion forms a first area, the carrier is arranged in the first area, and the other side of the second base protrusion forms a second area, and the second area is used to install the second part of the circuit board.

[0018] In one embodiment, a base embedded metal sheet mounting portion is provided in the middle portion of the first area to set the base embedded metal sheet, the base embedded metal sheet mounting portion is arranged perpendicular to the length direction of the base and protrudes integrally from the bottom of the first area toward the carrier, the base embedded metal sheet is arranged on the base embedded metal sheet mounting portion and at least two base embedded metal sheet grooves are provided on the surface facing the support body so as to rotatably cooperate with the second protrusion of the support body.

[0019] In one embodiment, the circuit board includes a first part and a second part, the first part is mounted on the base and folded into multiple layers, and the second part is mounted on the outer peripheral wall of the carrier and is provided with a coil.

[0020] In one embodiment, the second part includes a first coil mounting portion and a second coil mounting portion, the first coil mounting portion and the second coil mounting portion are respectively mounted on two adjacent outer side walls of the carrier and are used to mount the first coil and the second coil, and a first magnet corresponding to the first coil and a second magnet corresponding to the second coil are respectively mounted on the shell or the base, and the carrier is driven to rotate around two mutually perpendicular axes through the cooperation between the first magnet and the first coil and through the cooperation between the second magnet and the second coil.

[0021] In one embodiment, the first coil is parallel to the metal sheet embedded in the base, the second coil is parallel to the metal sheet embedded in the carrier, the first coil cooperates with the first magnet to drive the carrier to rotate relative to the base with the metal sheet embedded in the base as the fulcrum, and the second coil cooperates with the second magnet to drive the carrier to rotate relative to the base with the metal sheet embedded in the carrier as the fulcrum.

[0022] In one embodiment, a first sensor and a second sensor are respectively disposed inside the first coil and the second coil, the first sensor cooperates with the first magnet, and the second sensor cooperates with the second magnet.

[0023] The present invention uses a mechanical method to drive the entire lens module including the lens and the image sensor to make a movement in the opposite direction to the vibration but with a similar amplitude to offset the shaking caused by the vibration. During the anti-shake process, since there is no relative movement between the optical components and the image sensor, the image quality and anti-shake effect will not be reduced at the edge of the image, and there is no need to sacrifice part of the optical resolution of the lens and part of the resolution of the image sensor due to anti-shake. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional exploded view of an anti-shake gimbal used in combination with a lens module according to an embodiment of the present invention;

[0025] Figure 2A-2B yes Figure 1 Stereoscopic images of the housing of the anti-shake gimbal from different viewing angles;

[0026] Figure 3A-3B yes Figure 1 Stereoscopic images of different viewing angles of the anti-shake gimbal carrier;

[0027] Figure 4A-4B yes Figure 1Stereoscopic images of the circuit board of the anti-shake gimbal from different perspectives;

[0028] Figures 5A-5D They are Figure 1 The bottom view, top view, side view and three-dimensional exploded view of the support group of the anti-shake gimbal;

[0029] Figure 6 yes Figure 1 A front view of the base of the anti-shake gimbal;

[0030] Figure 7 yes Figure 1 A three-dimensional image of the reed of the anti-shake gimbal;

[0031] Figure 8 yes Figure 1 A stereoscopic image of an anti-shake gimbal without a housing installed; and

[0032] Figure 9-10 They are Figure 1 Different cross-sectional views of the anti-shake gimbal. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so that the purpose, features and advantages of the present invention can be more clearly understood. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0034] In the following description, certain specific details are set forth for the purpose of illustrating the various disclosed embodiments to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with the present application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0035] References throughout the specification to "one embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0036] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but the words "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", "down", etc. should be understood as convenient terms and should not be understood as restrictive terms.

[0037] The present invention generally relates to an anti-shake gimbal for use in conjunction with a lens module, and the anti-shake gimbal is used in conjunction with the lens module to achieve a better anti-shake effect. Specifically, the lens module itself can have an OIS anti-shake function, and the gimbal of the present invention mechanically drives the entire lens module including the lens and the image sensor to make a movement in the opposite direction to the vibration but with a similar amplitude, thereby offsetting the shaking caused by the vibration. During the anti-shake process, since there is no relative movement between the optical components and the image sensor, the image quality and anti-shake effect will not decrease at the edge of the image, and there is no need to sacrifice part of the optical resolution of the lens and part of the resolution of the image sensor due to anti-shake. Refer to the following Figure 1-10 An embodiment of the anti-shake gimbal of the present invention is described.

[0038] Figure 1 FIG. 1 is a perspective exploded view of an anti-shake platform 100 for combining with a lens module according to the present invention. Figure 1 As shown, the anti-shake gimbal 100 generally includes a housing 10, a carrier 20, a magnet group 30, a circuit board 40, a support group 50, a lower spring 60 and a base 70. The housing 10 and the base 70 cooperate and define an internal space to accommodate the carrier 20, the magnet group 30, the circuit board 40, the support group 50 and the lower spring 60 in the internal space. The magnet group 30 is mounted on the inner wall of the housing 10 or on the base 70, the circuit board 40 is fixedly mounted on the outer peripheral wall of the carrier 20, the coil of the circuit board 40 corresponds to the magnet group 30, the support group 50 is mounted between the base 70 and the bottom of the carrier 20 and rotatably supports the carrier 20, the lower spring 60 is arranged between the base 70 and the carrier 20 and movably connects the base 70 and the carrier 20, and the lens module (not shown) is installed in the carrier 20. The housing 10, the magnet group 30 and the base 70 form a fixed part, and the circuit board 40 and the carrier 20 form a movable part. When the circuit board 40 is powered on, the interaction between its coil and the magnet group drives the movable part to move, and further drives the lens module installed in the carrier 20 to move, thereby achieving the purpose of anti-shake. Figure 2A-10 The various components of the present invention are further described.

[0039] Figure 2A-2B yes Figure 1 3D images of the housing 10 from different viewing angles. Figure 2A-2BAs shown, the housing 100 is formed in a rectangular parallelepiped shape as a whole, and an open space 11 is formed on the side facing the base 70 to accommodate various components such as the carrier 20. A semi-enclosed top wall 12 is formed on the side away from the base 70, that is, an opening 13 is formed on the left side of the top wall 12 to cooperate with the lens module, and the lens module can be installed in the carrier 20 through the opening 13. The first part of the circuit board 40, that is, the flexible circuit board, is installed in the portion blocked by the top wall 12. A step portion 111 is formed on the inner wall of the open space 11 for installing the magnet group 30, for example. A notch 14 is provided at one end of the housing 10 to cooperate with the flexible circuit board of the circuit board 30. The notch 14 is provided on one side of the housing 10 close to the base 70 and is formed by being recessed upward, and the end of the flexible circuit board can extend out of the housing 10 from the notch 14.

[0040] Figure 3A-3B 20 are three-dimensional images from different viewing angles. Figure 3A-3B As shown, the carrier 20 is integrally installed in the open space 11 of the housing 10. Specifically, a lens module installation chamber 21 is formed on the side of the carrier 20 facing the housing 10. The lens module installation chamber 21 cooperates with the opening 13 of the housing 10 to accommodate the lens module. A closed bottom 22 is formed on the side of the carrier 20 facing the base 70. The bottom 22 is provided with an annular spring fixing portion 221. The spring fixing portion 221 and the inner ring 63 of the spring 60 (see Figure 7 ) is fixedly connected. The spring fixing portion 221 is preferably in a continuous annular shape, and is preferably formed by protruding a certain height toward the base 70. The outer periphery of the spring fixing portion 221 is adjacent to the edge of the bottom 22 of the carrier 20, that is, the outer periphery of the spring fixing portion 221 can be tangent to the four sides of the bottom 22. The bottom 22 of the carrier 20 is also provided with a support body matching portion 222. Specifically, the support body matching portion 222 is arranged inside the annular main body of the spring fixing portion 221, and is preferably a long strip-shaped fixing strip, which preferably passes through the center of the annular spring fixing portion 221, that is, the support body matching portion 222 can pass through a diameter of the annular spring fixing portion 221, and the two ends of the support body matching portion 222 are connected to the spring fixing portion 221. The support body matching portion 222 is formed by protruding a certain distance from the carrier bottom 22 toward the base 70, and is provided with mounting holes 223 near the two ends. The carrier embedded metal sheet 53 of the support group 50 is provided with a carrier embedded metal sheet protrusion 534 (refer to Figure 5D), the carrier embedded metal sheet 53 of the support group 50 is fixed to the support body matching portion 222 through the matching of the carrier embedded metal sheet protrusion 534 and the mounting hole 223, so that the support group 50 is rotatably connected to the bottom of the carrier 20. Preferably, the two mounting holes 223 are respectively provided at both ends of the support body matching portion 222 and are located inside the annular body of the spring fixing portion 221. It can be understood by those skilled in the art that a plurality of mounting holes can also be provided on the support body matching portion 222, for example, three or four mounting holes.

[0041] Continue to refer to Figure 3A-3B A circuit board avoidance opening 23 is formed on one side wall of the lens module installation chamber 21 of the carrier 20, and the circuit board avoidance opening 23 cooperates with the circuit board 40. Specifically, the circuit board avoidance opening 23 has a height substantially equal to that of the carrier 20, and has a width matching the width of the circuit board 40. The bottom of the circuit board avoidance opening 23 is located in the same plane as the bottom of the lens module installation chamber 21, and is provided with a protrusion 221 to cooperate with the mounting hole on the circuit board, so as to fix the circuit board 40 in the circuit board avoidance opening 23. A circuit board mounting portion 24 is also provided on the outer peripheral wall of the carrier 20, and the circuit board mounting portion 24 is arranged around a portion of the outer peripheral wall of the carrier 20.

[0042] Specifically, the circuit board mounting portion 24 extends from the side wall of the carrier 20 where the circuit board avoidance opening 23 is provided to the side wall opposite to the side wall where the circuit board avoidance opening 23 is provided, so as to mount the second portion 412 of the circuit board (which will be described in further detail when describing the circuit board portion below). The circuit board mounting portion 24 can be formed, for example, by forming a groove inwardly on the outer peripheral wall of the carrier 20, or can also be formed as follows. Figure 3A-3B As shown, a bottom protrusion 241 is formed at the bottom of the outer peripheral wall of the carrier 20, and a top protrusion 242 is formed at the top of the carrier 20, and the top protrusion 242 extends circumferentially around the carrier 20 and is disconnected at the circuit board avoidance opening 23. A circuit board mounting portion 24 is formed between the top protrusion 242 and the bottom protrusion 241, and the thickness of the second portion 412 of the circuit board is preferably smaller than the thickness of the top protrusion 242 and the bottom protrusion 241, so that when the second portion 412 of the circuit board is mounted on the circuit board mounting portion 24, a coil can be mounted on the outer surface of the second portion 412 of the circuit board.

[0043] Figure 4A-4B 40 are three-dimensional images from different viewing angles. Figure 4A-4BAs shown, the circuit board 40 includes a first part 411 and a second part 412. The first part 411 is a flexible circuit board and is folded into multiple layers, which forms an extended flexible part of the circuit board. The second part 412 is mounted on the circuit board mounting portion 24 of the carrier 20 and is provided with a coil 42. The first part 411 as a whole includes a fixed portion 4111 and a folding portion 4112. The fixed portion 4111 and the folding portion 4112 are integrally formed and preferably have the same width. The folding portion 4112 is preferably folded into more than three layers. The fixed portion 4111 is connected to the second part 412 through a connecting portion 44, and the connecting portion 44 is arranged on the side of the fixed portion 4111. The second part 412 as a whole includes an integrally formed first coil mounting portion 4121, a second coil mounting portion 4122 and a transition portion 4123, and is perpendicular to the fixed portion 4111. The bottom of the transition portion 4123 is connected to the connecting portion 44, and the side of the transition portion 4123 is connected to the first coil mounting portion 4121. The transition portion 4123 is mounted on the side wall of the carrier 20 where the circuit board avoidance opening 23 is provided. The second coil mounting portion 4122 is arranged opposite to the transition portion 4123 and is mounted with a second coil 422. A sensor 45, such as a Hall sensor (see Fig.10 ), the first coil mounting portion 4121 is disposed adjacent to the transition portion 4123 and is provided with a first coil 421, and a sensor 43, such as a Hall sensor, is also disposed inside the first coil 421.

[0044] Figures 5A-5D They are respectively a bottom view, a top view, a side view and a three-dimensional exploded view of a support group 50 according to an embodiment of the present invention. Figures 5A-5D As shown, the support group 50 includes a support body 51, a base embedded metal sheet 52 and a carrier embedded metal sheet 53. The support body 51 has a disc-shaped body, and the disc-shaped body has a first surface 51A and a second surface 51B opposite to each other. The base embedded metal sheet 52 is installed in the base 70 and is installed on the first surface 51A of the support body 51, and the carrier embedded metal sheet 53 is installed at the bottom of the carrier 20 and is installed on the second surface 51B of the support body 51. The base embedded metal sheet 52 and the carrier embedded metal sheet 53 are arranged crosswise and preferably perpendicular to each other.

[0045] Specifically, the first surface 51A is provided with a first support protrusion 512, and the second surface 51B is provided with a second support protrusion 513. Optionally, the position where the second surface 51B of the support body 51 is opposite to the first support protrusion 512 can form a first support groove 515, and the position where the first surface 51A of the support body 51 is opposite to the second support protrusion 513 can form a second support groove 514.

[0046] The base embedded metal sheet 52 has a first inner surface facing the support body 51 and a first outer surface 521 opposite to the first inner surface. Both ends of the first inner surface are provided with base embedded metal sheet grooves that cooperate with the first support body protrusions 512 on the support body 51. A base embedded metal sheet protrusion 522 that cooperates with the base groove 732 on the base 70 is formed at a position opposite to the base embedded metal sheet groove on the first outer surface 521. The base embedded metal sheet 52 is rotatably installed on the support body 51 through the cooperation between the base embedded metal sheet groove and the first inner support body protrusion 512 on the support body 51.

[0047] Similarly, the carrier embedded metal sheet 53 has a second inner surface 531 facing the support body 51 and a second outer surface 532 opposite to the second inner surface 531. The two ends of the second inner surface 531 are provided with carrier embedded metal sheet grooves 533. The second outer surface 532 is provided with a carrier embedded metal sheet protrusion 534 that cooperates with the mounting hole 223 at the bottom of the carrier 20 at a position opposite to the carrier embedded metal sheet groove 533. The carrier embedded metal sheet 53 is rotatably mounted on the support body 51 by the carrier embedded metal sheet groove 533 cooperating with the second support body protrusion 513 on the support body 51.

[0048] Figure 6 70 is a front view of the base. Figure 6 As shown, the base 70 as a whole includes a rectangular plate body 71, and the rectangular plate body 71 has an upper surface ( Figure 6 The upper surface of the rectangular plate body 71 is provided with a base protrusion 72, and the base protrusion 72 includes a first base protrusion 721 and a second base protrusion 722. The first base protrusion 721 extends along the circumference of a part of the rectangular plate body 71, and the second base protrusion 722 is arranged in the middle of the rectangular plate body 71 and deviates to one of the ends. The second base protrusion 722 has a width much larger than the first protrusion 721. The first base protrusion 721 and the second base protrusion 722 enclose a first area 73, and the first area 73 corresponds to the bottom of the carrier 20. The carrier 20 is arranged in the first area 73. The other side of the second base protrusion 722 forms a second area 74, and the second area 74 is used to install the second part 412 of the circuit board 40. An embedded metal sheet mounting portion 731 is provided in the middle of the first area 73. The embedded metal sheet mounting portion 731 is arranged perpendicular to the length direction of the base 70, and as a whole protrudes from the first area 73 toward the carrier and is provided with base grooves 732 at both ends. The base groove 732 cooperates with the base embedded metal sheet protrusion 522 on the base embedded metal sheet 52, so that the base embedded metal sheet 52 can be rotatably mounted on the base 70.

[0049] Figure 7 FIG. 6 is a perspective view of a reed 60 according to an embodiment of the present invention. Figure 7 As shown, the spring 60 is generally rectangular and includes an outer ring 61, an inner ring 62, and an elastic strip 63. The outer ring 61 and the inner ring 62 are movably connected via the elastic strip 63. The outer ring 61 is fixed on the base 70, and the inner ring 62 is fixed on the carrier 20. Specifically, the inner ring 62 is fixed on the spring fixing portion 221 of the carrier 20.

[0050] Figure 8 FIG. 1 is a perspective view of an anti-shake platform 100 for combining with a lens module according to an embodiment of the present invention, wherein the housing 10 is not installed. Figure 9-10 1 is a cross-sectional view of an anti-shake platform 100 for combining with a lens module according to an embodiment of the present invention. Figure 8-10 Shown and combined Figure 1-7 The carrier embedded metal sheet 53 is mounted on the support body matching portion 222 at the bottom of the carrier 20, and the two second circular protrusions 534 of the carrier embedded metal sheet 53 are matched with the two mounting holes 223 of the support body matching portion 222. The base embedded metal sheet 52 is mounted on the embedded metal sheet mounting portion 731 of the base 70, and the first circular protrusion 522 of the base embedded metal sheet 52 is matched with the groove 732 of the embedded metal sheet mounting portion 731 of the base 70. The outer ring 61 of the spring 60 is fixed on the base 70, and the inner ring 62 is fixed on the spring fixing portion 221 of the carrier 20. In this way, the carrier 20 and the base 70 are movably connected through the spring 60, and the support body 50 is rotatably supported between the bottom of the carrier 20 and the base 70. The first part 411 of the circuit board 40 is mounted in the circuit board mounting portion 24 set on the outer side wall of the carrier 20, and the second part 412 of the circuit board 40 is mounted on the second area 74 of the base 70. Specifically, one end of the fixing portion 4111 of the first circuit board portion 411 is placed at the bottom of the circuit board avoidance opening 23 of the carrier 20, and the circuit board hole provided on the fixing portion 4111 cooperates with the protrusion 221 at the bottom of the circuit board avoidance opening 23, thereby fixing the circuit board 40 to the carrier 20. The first coil 421 and the second coil 422 are respectively provided on the adjacent two sides of the second circuit board portion 412, and respectively cooperate with the magnets provided on the base 70 or the inner wall of the housing 10, so that when the first coil 421 and the second coil 422 are energized, the carrier 20 and the lens module installed in the carrier 20 can be driven to move, thereby achieving the effect of anti-shake.

[0051] Reference Figure 9-10 When the first coil 421 is energized, the first magnet 31 interacts with the first coil 421 to drive the carrier 20 to rotate perpendicular to Fig. 9 The axis of the paper shown in FIG. 1 (denoted as the X axis) rotates, and when the second coil 422 is energized, the second magnet 32 ​​interacts with the second coil 422 to drive the carrier to rotate perpendicular to the axis of the paper shown in FIG. Fig.10The axis (denoted as Y axis) of the paper shown rotates. Since the first sensor 43 and the second sensor 44 are respectively provided in the first coil 421 and the second coil 422, when a shake such as hand shaking occurs during the photographing process, the first sensor 41 or the second sensor 44 detects the displacement of the first magnet 31 or the second magnet 32 ​​from the displacement of the detection carrier 40, and transmits the displacement to the controller, and the controller controls the current size and direction in the first coil 421 or the second coil 42, forcing the carrier 20 to drive the lens module to move in the opposite direction, thereby achieving the purpose of anti-hand shaking.

[0052] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications to the present invention. These equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. An anti-shake gimbal, It is characterized in that The anti-shake gimbal comprises a shell, a carrier, a magnet group, a circuit board, a support body, a lower spring sheet and a base, wherein the carrier is provided with a lens module installation chamber for installing a lens module, the magnet group is fixedly installed on the shell or the base, the circuit board is installed on the outer side wall of the carrier and cooperates with the magnet group, the lower spring sheet movably connects the carrier and the base, and the support body is installed between the base and the carrier to rotatably support the carrier on the base; The bottom of the carrier is provided with a carrier embedded metal sheet, the base is provided with a base embedded metal sheet, the support body includes a first surface facing the carrier and a second surface facing the base, the first surface is rotatably matched with the carrier embedded metal sheet, and the second surface is rotatably matched with the base embedded metal sheet; The metal sheet embedded in the base is rotatably matched with the second surface of the support body by means of a groove and a protrusion, and the metal sheet embedded in the carrier is rotatably matched with the first surface of the support body by means of a groove and a protrusion; The first surface of the support body is provided with at least two first protrusions to cooperate with the metal sheet embedded in the carrier, and the second surface of the support body is provided with at least two second protrusions to cooperate with the metal sheet embedded in the base; The support body has a disc-shaped main body, and a connecting line of the at least two first protrusions and a connecting line of the at least two second protrusions pass through the center of the disc-shaped main body and are perpendicular to each other.

2. The anti-shake gimbal according to claim 1, It is characterized in that The base embedded metal sheet and the carrier embedded metal sheet are arranged perpendicular to each other.

3. The anti-shake gimbal according to claim 1, It is characterized in that A closed bottom is formed on one side of the carrier facing the base. A spring fixing portion protruding toward the base is provided on the bottom. The spring fixing portion is fixedly connected to the inner circle of the spring.

4. The anti-shake gimbal according to claim 3, It is characterized in that The bottom of the carrier is also provided with a support body matching part, the carrier embedded metal sheet is installed on the support body matching part, and the spring fixing part includes an annular body, and the support body matching part is arranged in the annular body.

5. The anti-shake gimbal according to claim 4, It is characterized in that The supporting body matching portion has a long strip shape and passes through the center of the annular body of the spring fixing portion. The surface of the carrier embedded metal sheet facing the supporting body is provided with a carrier embedded metal sheet groove to match with the first protrusion of the supporting body.

6. The anti-shake gimbal according to claim 1, It is characterized in that The base includes a rectangular plate body, which has an upper surface facing the carrier and a lower surface away from the carrier, the upper surface is provided with a first base protrusion and a second base protrusion, the first base protrusion extends along the circumference of a part of the rectangular plate body, the second base protrusion is arranged in the middle of the rectangular plate body and biased toward one of the end portions, wherein one side of the first base protrusion and the second base protrusion forms a first area, the carrier is arranged in the first area, and the other side of the second base protrusion forms a second area, and the second area is used to install the second part of the circuit board.

7. The anti-shake gimbal according to claim 6, It is characterized in that A base embedded metal sheet mounting portion is provided in the middle of the first area to set the base embedded metal sheet. The base embedded metal sheet mounting portion is arranged perpendicular to the length direction of the base and protrudes integrally from the bottom of the first area toward the carrier. The base embedded metal sheet is arranged on the base embedded metal sheet mounting portion and at least two base embedded metal sheet grooves are provided on the surface facing the support body so as to rotatably cooperate with the second protrusion of the support body.

8. The anti-shake gimbal according to claim 1, It is characterized in that The circuit board comprises a first part and a second part, wherein the first part is mounted on the base and folded into multiple layers, and the second part is mounted on the outer peripheral wall of the carrier and is provided with a coil.

9. The anti-shake gimbal according to claim 8, It is characterized in that The second part includes a first coil mounting portion and a second coil mounting portion, the first coil mounting portion and the second coil mounting portion are respectively mounted on two adjacent outer side walls of the carrier and are used to mount the first coil and the second coil, and a first magnet corresponding to the first coil and a second magnet corresponding to the second coil are respectively mounted on the shell or the base, and the carrier is driven to rotate around two mutually perpendicular axes through the cooperation between the first magnet and the first coil and through the cooperation between the second magnet and the second coil.

10. The anti-shake gimbal according to claim 9, It is characterized in that The first coil is parallel to the metal sheet embedded in the base, the second coil is parallel to the metal sheet embedded in the carrier, the first coil cooperates with the first magnet to drive the carrier to rotate relative to the base with the metal sheet embedded in the base as a fulcrum, and the second coil cooperates with the second magnet to drive the carrier to rotate relative to the base with the metal sheet embedded in the carrier as a fulcrum.

11. The anti-shake gimbal according to claim 9, It is characterized in that A first sensor and a second sensor are respectively disposed inside the first coil and the second coil. The first sensor cooperates with the first magnet, and the second sensor cooperates with the second magnet.

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