Anti-shake camera and terminal

Abstract

The embodiment of the present invention provides an anti-shake camera and a terminal, wherein the anti-shake camera comprises: a camera body, and a circuit board and a coil fixing plate fixed on the back of the camera body; the back of the coil fixing plate is divided into four areas according to a diagonal line, and a sector coil is fixed in two symmetrical areas respectively, and a rotation axis is provided at the center of the diagonal line; a substrate is provided behind the back of the coil fixing plate, and a matching mechanism of the rotation axis is provided on the side of the substrate opposite to the back of the coil fixing plate, and a sector permanent magnet is fixed on the area of ​​the substrate corresponding to the area where the sector coil is not fixed on the coil fixing plate, and there is a gap with a certain angle between the sector permanent magnet and the sector coil. The rotation axis and matching mechanism between the coil fixing plate and the substrate enable the coil fixing plate and the camera body and the substrate fixed thereon to rotate, and the rotation angle is controlled under the control of the MCU through the sector coil and the permanent magnet.

Description

Technical Field

[0001] The embodiments of the present invention relate to, but are not limited to, the field of device hardware, and specifically, relate to, but are not limited to, an anti-shake camera and a terminal. Background Art

[0002] With the popularity of mobile terminals and smart devices with cameras, people are increasingly taking photos and videos to record their daily lives. At the same time, higher requirements are placed on the quality of photos and videos. The most common way to take photos and videos with mobile terminals is to hold them in your hand. It is difficult to keep the terminal in a stable state when the user holds it in your hand, and the hand is prone to shaking, which will cause the photos to be blurred and the shooting adaptation to appear jittery, affecting the user experience.

[0003] To address the above issues, most of the cameras currently installed in mobile terminals have an anti-shake function. Currently, the most common anti-shake cameras have anti-shake functions on the X-axis and Y-axis, that is, anti-shake functions on the left and right and up and down directions of the shooting plane. However, in addition to the left and right and up and down shaking in the process of holding and shooting, users are also prone to rotational shaking on the shooting plane due to the reverse movement of the two ends of the terminal, that is, shaking in the Z-axis direction. There is currently no better solution to the problem of shaking caused by rotation. Summary of the invention

[0004] An anti-shake camera and terminal provided by an embodiment of the present invention mainly solve the technical problem of providing an anti-shake camera to achieve anti-shake of the shooting plane on the Z axis. To solve the above technical problems, an embodiment of the present invention provides an anti-shake camera, including: a camera body, and a circuit board and a coil fixing plate fixed on the back of the camera body; the back of the coil fixing plate is divided into four areas according to the diagonal line, and fan-shaped coils are fixed in two symmetrical areas respectively, and a rotation axis is provided at the center of the diagonal line; a substrate is provided behind the back of the coil fixing plate, and a matching mechanism of the rotation axis is provided on the side of the substrate opposite to the back of the coil fixing plate, and a fan-shaped permanent magnet is fixed on the area of ​​the substrate corresponding to the area of ​​the coil fixing plate where the fan-shaped coil is not fixed, and there is a gap with a certain angle between the fan-shaped permanent magnet and the fan-shaped coil.

[0005] An embodiment of the present invention further provides a terminal, including: a terminal body, wherein the terminal body is equipped with the anti-shake camera described above.

[0006] According to an embodiment of the present invention, an anti-shake camera and terminal are provided, the anti-shake camera includes: a camera body, and a circuit board and a coil fixing plate fixed on the back of the camera body; the back of the coil fixing plate is divided into four areas according to the diagonal line, and a fan-shaped coil is fixed in two symmetrical areas respectively, and a rotation axis is provided at the center of the diagonal line; a substrate is provided at the rear of the back of the coil fixing plate, and a matching mechanism of the rotation axis is provided on the side opposite to the back of the substrate and the coil fixing plate, and a fan-shaped permanent magnet is fixed on the area of ​​the substrate corresponding to the area where the fan-shaped coil is not fixed on the coil fixing plate, and there is a gap with a certain angle between the fan-shaped permanent magnet and the fan-shaped coil. Through the rotation axis and matching mechanism between the coil fixing plate and the substrate, the coil fixing plate and the camera body and the substrate fixed thereto are rotated, and through the fan-shaped coil and the permanent magnet, the rotation angle is controlled under the control of the MCU. In some implementation processes, a reset spring is also provided between the coil fixing plate and the substrate to keep the camera body in a fixed position when the fan-shaped coil is not powered.

[0007] Other features and corresponding beneficial effects of the present invention are described in the latter part of the specification, and it should be understood that at least part of the beneficial effects become obvious from the description in the specification of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A stereoscopic diagram of an anti-shake camera provided in this embodiment;

[0009] Figure 2 An explosion of an anti-shake camera provided in this embodiment Figure 1 ;

[0010] Figure 3 An explosion of an anti-shake camera provided in this embodiment Figure 2 ;

[0011] Figure 4 A schematic diagram of a circuit board of the anti-shake camera provided in this embodiment. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following is a further detailed description of the embodiments of the present invention through specific implementation methods combined with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0013] Embodiment 1:

[0014] In order to realize the rotation control of the camera on the Z axis so that the camera also has the angle compensation function of the Z axis jitter, this embodiment provides an anti-shake camera, which includes: a camera body, and a circuit board and a coil fixing plate fixed on the back of the camera body; the back of the coil fixing plate is divided into four areas according to the diagonal line, and fan-shaped coils are respectively fixed in two symmetrical areas, and a rotation axis is provided at the center of the diagonal line; a substrate is provided behind the back of the coil fixing plate, and a matching mechanism of the rotation axis is provided on the side of the substrate opposite to the back of the coil fixing plate, and a fan-shaped permanent magnet is fixed on the area of ​​the substrate corresponding to the area of ​​the coil fixing plate where the fan-shaped coil is not fixed, and there is a gap with a certain angle between the fan-shaped permanent magnet and the fan-shaped coil.

[0015] See also Figure 1 , Figure 2 and Figure 3 , Figure 1 A stereoscopic diagram of an anti-shake camera provided in this embodiment. Figure 2 An explosion of an anti-shake camera provided in this embodiment Figure 1 . Figure 3 An explosion of an anti-shake camera provided in this embodiment Figure 2 .

[0016] The anti-shake camera includes: a camera body 1, and a circuit board 2 and a coil fixing plate 3 fixed on the back of the camera body 1, and a substrate 4 is below the coil fixing plate 3; wherein the camera body 1, the circuit board 2 and the coil fixing plate 3 are fixed together, and the substrate 4 is movably connected to the coil fixing plate 3.

[0017] The camera body 1 is the imaging component of the camera, which mainly includes a protective shell, a number of lens pieces in the protective shell and CMOS under the lens pieces. COMS is connected to the main board through the circuit and the circuit board 2; the circuit board 2 is the data transmission line and power supply line of the camera body 1 and the fan-shaped coil 301 on the coil fixing plate 3; the coil fixing plate 3 is the main component that drives the circuit board 2 and the camera body 1 to rotate. The front side of the coil fixing plate 3 is fixed on the circuit board 2, and the back side is divided into four areas according to the diagonal line. The fan-shaped coil 301 is fixed in two symmetrical areas respectively. The electrodes formed by the power supply of the fan-shaped coil 301 are distributed at the left and right ends of the fan-shaped area. The fan-shaped coil 301 is connected to the circuit board 2 for power supply. A rotating shaft 302 is provided at the diagonal center of the back side of the coil fixing plate 3. The rotation axis 302 cooperates with the matching mechanism 402 on the substrate 4 to realize the rotation of the coil fixing plate 3 relative to the substrate 4; the center of the substrate 4 corresponds to the center of the coil fixing plate 3, and there is a matching mechanism 402 at the center position that cooperates with the rotation axis 302 on the coil fixing plate 3 to realize the rotation, and a fan-shaped permanent magnet 401 is fixed on the substrate 4 in the area staggered from the fan-shaped coil 301 of the coil fixing plate 3, and the magnetic poles of the fan-shaped permanent magnet 401 are distributed at the left and right ends of the fan-shaped, and when the assembly is completed, there is a gap with a certain angle between the fan-shaped permanent magnet 401 and the fan-shaped coil 301 at the left and right ends, and the coil fixing plate 3 can be rotated within the angle range of these gaps, and the larger the angle of the gap, the larger the rotatable angle, wherein the optional rotation angle range includes but is not limited to ±0°-20°. After the anti-shake camera provided in this embodiment is assembled, the spacing between the coil fixing plate 3 and the substrate 4 is greater than the thickness of the fan-shaped permanent magnet 401, and also greater than the thickness of the fan-shaped coil 301.

[0018] In some embodiments, a return spring is further provided between the coil fixing plate and the base plate, one end of the return spring is fixed to the coil fixing plate, and the other end is fixed to the base plate; when the coil fixing plate and the base plate rotate relative to each other, the return spring is compressed or pulled up. Figure 2 and Figure 3 , where 6 is a return spring.

[0019] In some embodiments, the return spring includes two arc springs, and two symmetrical spring positioning points are arranged on the back side of the coil fixing plate; the two arc springs are symmetrically arranged on the outside of the fan-shaped coil and the fan-shaped permanent magnet, the middle points of the two arc springs are respectively fixed on the corresponding spring positioning points, and the two ends of the two arc springs are fixed on the substrate.

[0020] See also Figure 3The reset spring 6 includes two arc springs. At this time, a spring positioning point 303 is also included on the back of the coil fixing plate 3. The spring positioning point 303 can fix the arc spring. During assembly, the two ends of the arc spring are fixed on the substrate 4, and the middle point of the arc spring is fixed on the spring positioning point 303. In this way, during the rotation of the coil fixing plate 3, the arc spring is compressed from the center position to one end, and the other end is stretched. When the fan coil 301 is powered off, the camera can return to its original position through the arc spring.

[0021] In some embodiments, the coil fixing plate and the base plate achieve relative rotation via a bearing; the rotating shaft is a bearing fixing cylinder, and the matching mechanism is a bearing fixing column; or, the rotating shaft is a bearing fixing column, and the matching mechanism is a bearing fixing cylinder.

[0022] See also Figure 2 and Figure 3 When the coil fixing plate 3 and the base plate 4 realize relative rotation through the bearing 5, the rotating shaft on the back of the coil fixing plate 3 is the bearing fixing cylinder, and the corresponding matching mechanism on the base plate 4 is the bearing fixing column; correspondingly, the rotating shaft can also be the bearing fixing column, and the matching mechanism can be the bearing fixing cylinder.

[0023] In some embodiments, the circuit board is an FPC, the front side of the FPC is connected to the circuit of the camera body, and the back side passes through the through hole on the coil fixing plate and is connected to the fan-shaped coil.

[0024] See also Figure 2 , Figure 3 and Figure 4 FPC is a flexible printed circuit board. It is thin and flexible. As a circuit board in a camera, it can reduce the overall thickness of the camera module. Usually, the data transmission and power supply of the entire camera module are realized through FPC. Therefore, the front side of FPC is connected to the line of the camera body to power the camera body and transmit the data generated by the camera body in a timely manner. In addition, since the sector coil 301 arranged on the back side of the coil fixing plate 3 is also powered by FPC, in order to facilitate the connection between the sector coil 301 and FPC, a corresponding through hole is directly opened on the coil fixing plate 3, and the back side of FPC is directly connected to the sector coil 301 through the through hole. See Figure 3 , Figure 3 There is a coil connection column 201 on the back of the FPC2, and the coil connection column 201 passes through the through hole on the coil fixing plate 3 and is connected to the sector coil 301. One end of the FPC is usually directly packaged and fixed in the entire module of the anti-shake camera, and the other end is connected to the corresponding interface of the mainboard in the form of an interface, which can be seen in Figure 1 .

[0025] In some embodiments, the FPC is at a right angle when extending out of the camera body, and the other end of the right angle is folded in the opposite direction; when the coil fixing plate rotates, the folding point of the FPC moves following the rotation of the coil fixing plate.

[0026] See also Figure 4 , Figure 4 Schematic diagram of the circuit board of the anti-shake camera provided for this embodiment. The FPC extending out of the camera body is at a right angle as a whole, where area A is the front of the extended part of the FPC, area B is the interface at the other end of the FPC, which can be directly connected to the main board, and area C is the reverse folding area. Since the FPC is made of flexible material, the reverse folding will not cause damage to the circuit itself. During the rotation of the coil fixing plate, the folding area C follows the rotation of the coil fixing plate by moving back and forth to prevent the circuit board from interfering with the rotation of the coil fixing plate.

[0027] In some embodiments, the sector-shaped permanent magnet is disposed in any area of ​​the substrate corresponding to the area where the coil fixing plate does not fix the sector-shaped coil; or, is disposed in both areas of the substrate corresponding to the area where the coil fixing plate does not fix the sector-shaped coil. Figure 2 This is a schematic diagram of providing sector-shaped permanent magnets in two regions. In some embodiments, sector-shaped permanent magnets may be provided in only one region to further reduce the weight of the entire anti-shake camera module.

[0028] In some embodiments, the camera body is a zoom camera, and the camera body is an X-axis and Y-axis anti-shake camera. After achieving Z-axis anti-shake, X-axis and Y-axis anti-shake are set on the camera body at the same time to further enhance the anti-shake capability of the camera.

[0029] In some embodiments, the camera body, circuit board, coil fixing plate and substrate are packaged on a roll cage, and a rotation space for the camera body, circuit board and coil fixing plate is reserved inside the roll cage. In order to reduce the failure rate of the camera and improve the convenience of installation, the camera body, circuit board, coil fixing plate and substrate can be packaged on a roll cage, and a corresponding activity space needs to be reserved inside the roll cage.

[0030] The embodiment of the present invention provides an anti-shake camera, which includes: a camera body, and a circuit board and a coil fixing plate fixed on the back of the camera body; the back of the coil fixing plate is divided into four areas according to the diagonal line, and fan-shaped coils are fixed in two symmetrical areas respectively, and a rotation axis is provided at the center of the diagonal line; a substrate is provided behind the back of the coil fixing plate, and a matching mechanism of the rotation axis is provided on the side of the substrate opposite to the back of the coil fixing plate, and a fan-shaped permanent magnet is fixed on the area of ​​the substrate corresponding to the area where the fan-shaped coil is not fixed on the coil fixing plate, and there is a gap with a certain angle between the fan-shaped permanent magnet and the fan-shaped coil. Through the rotation axis and matching mechanism between the coil fixing plate and the substrate, the coil fixing plate and the camera body and the substrate fixed thereto are rotated, and through the fan-shaped coil and the permanent magnet, the rotation angle is controlled under the control of the MCU.

[0031] Embodiment 2:

[0032] This embodiment provides a terminal, which includes a terminal body. The terminal body is equipped with an anti-shake camera provided by an embodiment of the present invention.

[0033] The anti-shake camera provided in the embodiment of the present invention can be integrated into the interior of the terminal in the form of a camera component, and can also be mounted on the outside of the terminal body in the form of a separate camera module.

[0034] It can be seen that those skilled in the art should understand that all or some of the steps, systems, and functional modules / units in the above disclosed methods can be implemented as software (which can be implemented with computer program code executable by a computing device), firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component can have multiple functions, or a function or step can be performed by several physical components in cooperation. Some or all physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit.

[0035] In addition, it is well known to those skilled in the art that communication media generally contain computer readable instructions, data structures, computer program modules or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery media. Therefore, the present invention is not limited to any specific hardware and software combination.

[0036] The above contents are further detailed descriptions of the embodiments of the present invention in combination with specific implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. An anti-shake camera, characterized in that: include: A camera body, and a circuit board and a coil fixing plate fixed to the back of the camera body; The back side of the coil fixing plate is divided into four areas according to the diagonal line, and the sector coils are fixed in two symmetrical areas respectively, and a rotating shaft is provided at the center of the diagonal line; A base plate is arranged behind the back side of the coil fixing plate, and a matching mechanism of the rotating shaft is arranged on the side of the base plate opposite to the back side of the coil fixing plate. A sector-shaped permanent magnet is fixed on the area of ​​the base plate corresponding to the area of ​​the coil fixing plate where the sector-shaped coil is not fixed, and there is a gap at a certain angle between the sector-shaped permanent magnet and the sector coil.

2. The anti-shake camera according to claim 1, characterized in that: A return spring is also arranged between the coil fixing plate and the base plate, one end of the return spring is fixed on the coil fixing plate, and the other end is fixed on the base plate; when the coil fixing plate and the base plate rotate relative to each other, the return spring is compressed or pulled up.

3. The anti-shake camera according to claim 2, characterized in that: The return spring comprises two arc-shaped springs, and the back side of the coil fixing plate is provided with two symmetrical spring positioning points; The two arc springs are symmetrically arranged on the outer sides of the sector coil and the sector permanent magnet, the middle points of the two arc springs are respectively fixed on corresponding spring positioning points, and the two ends of the two arc springs are fixed on the substrate.

4. The anti-shake camera according to any one of claims 1 to 3, characterized in that: The coil fixing plate and the base plate achieve relative rotation via bearings; The rotating shaft is a bearing fixing cylinder, and the matching mechanism is a bearing fixing column; or, The rotating shaft is a bearing fixing column, and the matching mechanism is a bearing fixing cylinder.

5. The anti-shake camera according to any one of claims 1 to 3, characterized in that: The circuit board is an FPC, the front side of the FPC is connected to the circuit of the camera body, and the back side passes through the through hole on the coil fixing plate and is connected to the sector coil.

6. The anti-shake camera according to claim 5, characterized in that: The FPC is at a right angle when extending out of the camera body, and the other end of the right angle is folded in the opposite direction; When the coil fixing plate rotates, the folding point of the FPC moves following the rotation of the coil fixing plate.

7. The anti-shake camera according to any one of claims 1 to 3, characterized in that: The sector-shaped permanent magnet is arranged in any area of ​​the substrate corresponding to the area where the sector coil is not fixed on the coil fixing plate; or, The two areas of the substrate corresponding to the area where the coil fixing plate does not fix the sector coil are both set.

8. The anti-shake camera according to claim 1, wherein: The camera body is a zoom camera, and the camera body is an X-axis and Y-axis anti-shake camera.

9. The anti-shake camera according to claim 1, wherein: The camera body, the circuit board, the coil fixing plate and the substrate are packaged on an anti-roll cage, and a rotation space for the camera body, the circuit board and the coil fixing plate is reserved inside the anti-roll cage.

10. A terminal, characterized in that: include: A terminal body, wherein the terminal body is equipped with an anti-shake camera as described in any one of claims 1-9.

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