Camera device and intelligent terminal

Abstract

The invention provides a camera shooting device. The camera shooting device comprises a lens assembly, an optical image stabilization (OIS) assembly, an automatic focusing (AF) assembly and an imaging chip assembly. The lens assembly comprises a first lens and a second lens, the OIS assembly comprises an OIS stator part and an OIS mover part movably arranged in the OIS stator part, and the AF assembly comprises an AF stator part and an AF mover part movably arranged in the AF stator part; the OIS stator part, the AF stator part and the imaging chip module are mutually fixed, the first lens is arranged in the OIS rotor part, and the second lens is arranged in the AF rotor part; the imaging chip module is used for converting an optical image signal collected by the lens assembly into an electronic image signal. The invention further provides an intelligent terminal comprising the camera shooting equipment.

Description

Technical Field

[0001] The present application belongs to the field of camera technology, and in particular, relates to a camera device and a smart terminal having the camera device. Background Art

[0002] Various commonly used intelligent terminals, such as smart phones, tablet computers, etc., are usually equipped with built-in camera devices to realize the shooting function anytime and anywhere. In order to obtain better shooting effects, such built-in camera devices are generally also equipped with automatic focus (Automatic Focus, hereinafter referred to as AF) components and optical image stabilization (Optical Image Stabilization, hereinafter referred to as OIS) components, which are used to adjust the relative position between the lens component and the imaging chip component of the camera device during shooting to improve the image quality.

[0003] However, the AF component and OIS component of the existing camera device usually need to drive the entire lens component of the camera device to move when working, which requires a large amount of power and high power consumption. The need for outputting a large amount of power will also have an adverse effect on the miniaturization of the product.

[0004] In addition, the AF component and OIS component of the camera device in the prior art are usually complex in structure, requiring more assembly space, which easily hinders the further miniaturization of the camera device. In particular, in the structural design of the existing camera device, the OIS component is often designed to be arranged around the AF component. This arrangement easily causes the OIS component to extend a significantly larger size in the direction perpendicular to the optical axis of the camera device, making the overall shape less compact.

[0005] Therefore, it is necessary to provide a camera device with a more novel structure and a smart terminal with the camera device built therein to solve the above-mentioned defects in the prior art. Summary of the invention

[0006] The purpose of the present application is to provide a camera device with a more novel structure and an intelligent terminal having the camera device, so as to solve the problem that the structure and arrangement of the focus mechanism and the anti-shake mechanism in the existing camera device are not conducive to product miniaturization and have high power consumption.

[0007] In order to solve the above problems, an embodiment of the present application provides a camera device, which includes a lens assembly, an optical image stabilization (OIS) assembly, an autofocus (AF) assembly, and an imaging chip assembly; the lens assembly includes a first lens and a second lens, the OIS assembly includes an OIS stator part and an OIS mover part movably mounted in the OIS stator part, and the AF assembly includes an AF stator part and an AF mover part movably mounted in the AF stator part; the OIS stator part, the AF stator part and the imaging chip module are fixed to each other, the first lens is mounted in the OIS mover part, and the second lens is mounted in the AF mover part; the imaging chip module is used to convert the optical image signal collected by the lens assembly into an electronic image signal.

[0008] In some embodiments, the OIS stator part includes a first OIS bracket and a second OIS bracket, and the OIS mover part includes a third OIS bracket, a first OIS ball, and a second OIS ball; the first OIS ball can be rolled along a preset first OIS adjustment direction between the first OIS bracket and the second OIS bracket, and the second OIS ball can be rolled along a preset second OIS adjustment direction between the second OIS bracket and the third OIS bracket, and the first OIS adjustment direction is different from the second OIS adjustment direction; the first lens is mounted in the third OIS bracket.

[0009] In some embodiments, the OIS stator part also includes a first OIS coil and a second OIS coil, and the OIS mover part also includes a first OIS magnet and a second OIS magnet; the first OIS coil and the first OIS magnet are used to generate electromagnetic force to drive the OIS mover part in the first OIS adjustment direction, and the second OIS coil and the second OIS magnet are used to generate electromagnetic force to drive the OIS mover part in the second OIS adjustment direction.

[0010] In some embodiments, the AF stator part includes an AF outer frame, and the AF mover part includes an AF carrier; the AF carrier is movably mounted in the AF outer frame, and the second lens is mounted in the AF carrier.

[0011] In some embodiments, the AF stator part also includes an AF coil, and the AF mover part also includes an AF adjusting magnet. The AF coil is mounted on the AF outer frame, and the AF adjusting magnet is mounted on the AF carrier. The AF coil and the AF adjusting magnet are used to generate electromagnetic force to drive the AF mover part.

[0012] In some embodiments, the AF stator part also includes an AF guide plate, the AF mover part also includes an AF ball, the AF guide plate is arranged between the AF outer frame and the AF carrier, and the AF ball is rotatably installed between the AF carrier and the AF guide plate.

[0013] In some embodiments, the AF guide plate is connected to or integrally formed with the third OIS bracket.

[0014] In some embodiments, the AF stator part also includes an AF limiting magnet, and the AF mover part also includes an AF magnetic sheet. The AF limiting magnet is installed on the outer frame, and the AF magnetic sheet is installed on the AF carrier. The AF limiting magnet is used to generate an attractive force on the AF magnetic sheet, so that the AF magnetic sheet drives the AF carrier to approach the AF limiting magnet, thereby clamping the AF ball between the AF carrier and the guide plate.

[0015] In some embodiments, the AF component further includes a circuit board, which is coated on the outside of the OIS component and the AF component, and the OIS component and the AF component are both electrically connected to the circuit board.

[0016] Another aspect of the present application also provides a smart terminal, which includes the camera device described in any one of the aforementioned embodiments.

[0017] Compared with the prior art, the camera device and the smart terminal having the camera device provided by the above-mentioned embodiment of the present application have many beneficial effects, such as: (1) The first lens and the second lens of the lens assembly can be driven to adjust the position respectively. When performing OIS operation, only the first lens needs to be driven to move, and when performing AF operation, only the second lens needs to be driven to move, which can reduce the power required for OIS operation and AF operation, reduce energy consumption, and increase service life. (2) In the camera device, the overall structure of the OIS component and the AF component are relatively simple, and the OIS component is not arranged around the AF component as in most prior arts, but is arranged in sequence with the AF component along the optical axis direction of the lens assembly, and will not extend a significantly larger size in the direction perpendicular to the optical axis of the camera device, which is conducive to the miniaturization of the overall structure. (3) The third OIS bracket of the OIS component and the AF guide plate of the AF component are interconnected or integrally formed structures, so that the OIS component and the AF component have common components to a certain extent, making the overall structure more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a stereoscopic schematic diagram of a camera device provided by a preferred embodiment of the present application.

[0020] Figure 2 yes Figure 1 The schematic diagram of the camera device shown is a disassembled housing, OIS component, AF component, and imaging chip component.

[0021] Figure 3 yes Figure 2 The camera device shown is a schematic diagram of a further decomposed structure.

[0022] Figure 4 yes Figure 3 The diagram is an enlarged schematic diagram of the exploded structure of the OIS component in the camera device shown.

[0023] Figure 5 yes Figure 4 Schematic diagram of the structure of the partially decomposed OIS component after being flipped.

[0024] Figure 6 yes Figure 4 Schematic diagram of the structure of the OIS component after assembly.

[0025] Figure 7 yes Figure 3 The diagram is an enlarged schematic diagram of the exploded structure of the AF component in the camera device.

[0026] Figure 8 yes Figure 7 Schematic diagram of the structure of the AF component after assembly.

[0027] Fig. 9A yes Figure 1 The camera equipment shown is along Figure 1 Schematic cross-sectional view of line AA shown in FIG.

[0028] Fig. 9B yes Figure 1 The camera equipment shown is along Figure 1 Schematic cross-sectional view of line BB shown in FIG. DETAILED DESCRIPTION

[0029] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the description of the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] The main purpose of the present application is to provide a camera device with a more novel structure and a smart terminal with the camera device, so as to solve the problems that the AF component and OIS component in the existing smart terminal built-in camera device have a relatively complex structure, the overall shape is not compact enough, and a large power is required to drive the entire lens assembly to move during operation.

[0031] Please see first Figure 1 , Figure 2 and Figure 3 In one aspect, a preferred embodiment of the present application provides a camera device, which can be used in smart terminals such as smart phones and tablet computers as a built-in camera device of the smart terminal. The camera device includes a housing 1, a lens assembly 2, an OIS assembly 3, an AF assembly 4, and an imaging chip assembly 5.

[0032] The shape of the housing 1 is generally a rectangular box with an open bottom, and a first lens hole 10 is provided at the center of the top. The lens assembly 2 includes at least a first lens 21 and a second lens 22. The first lens 21 can be installed in the OIS assembly 3, and the second lens 22 can be installed in the AF assembly 4. The outer contour and size of the first lens 21 correspond to the first lens hole 10, and the first lens 21 can extend through the first lens hole 10. The specific structure and working principle of the first lens 21 and the second lens 22 can refer to the prior art, and no further description is needed here.

[0033] Please also read Figure 4 and Figure 5 The OIS assembly 3 includes a first OIS bracket 31, a second OIS bracket 32, a third OIS bracket 33, an OIS clamp 34, a first OIS ball 35, a second OIS ball 36, a first OIS coil 37a, a first OIS magnet 37b, a second OIS coil 38a, and a second OIS magnet 38b.

[0034] The shape of the first OIS bracket 31 is roughly a rectangular box with an open bottom, including a rectangular flat plate-shaped first bracket top wall 311 and a rectangular frame-shaped first bracket frame 312, and the first bracket frame 312 is vertically connected to the bottom edge of the top wall of the first bracket 311. A second lens hole 310 is provided in the middle of the first bracket top wall 311, and the first lens 21 can extend from the second lens hole 310. A plurality of recessed first ball grooves 313 are also provided on the inner surface of the first bracket top wall 311, that is, on the surface surrounded by the first bracket frame 312, for accommodating the first OIS ball 35. An OIS coil accommodating port 314 is provided on each of the two mutually perpendicular adjacent frame edges of the first bracket frame 312. A plurality of snap-fit ​​areas 315 for snap-fitting with the OIS clip 34 can also be formed on the outer surface of the first bracket frame 311.

[0035] The second OIS bracket 32 ​​is roughly in the shape of a rectangular flat plate, which corresponds to the internal space of the first OIS bracket 31, and is slightly smaller than the internal size of the first OIS bracket 31, so that the second OIS bracket 32 ​​can be movably installed inside the first OIS bracket 31. A third lens hole 320 is provided in the center of the second OIS bracket 32, and the first lens 21 can extend from the third lens hole 320. A plurality of recessed second ball grooves 321 are provided on one side surface of the second OIS bracket 32, and the position and structure of the second ball grooves 321 correspond to the first ball grooves 313, which are used to cooperate with each other to accommodate the first OIS ball 35. A plurality of raised matching blocks 322 are provided on the other side surface of the second OIS bracket 32, and a third ball groove 323 is provided on the surface of each matching block 322. The direction of the third ball groove 323 is different from that of the second ball groove 321, and is preferably perpendicular to each other. Preferably, the positions of the plurality of matching blocks 322 and the positions of the plurality of second ball grooves 321 can be aligned with each other in a one-to-one correspondence. Specifically in the present embodiment, the number of the mating blocks 322 and the second ball grooves 321 are both four, the four second ball grooves 321 are respectively opened at the four corners of one side surface of the second OIS bracket 32, the four mating blocks 322 are respectively arranged at the four corners of the other side surface of the second OIS bracket 32, and the four second ball grooves 321 and the four mating blocks 322 are aligned with each other one by one.

[0036] The third OIS bracket 33 includes a third bracket body 331 which is roughly in the shape of a rectangular flat plate. The shape and size of the third bracket body 331 correspond to those of the second OIS bracket 32, so that the third bracket body 331 can also be movably installed inside the first OIS bracket 31. The third bracket body 331 has a top surface 331a and a bottom surface 331b. A first lens mounting portion 332 and a plurality of recessed fourth ball grooves 333 are formed on the top surface 331a, wherein the first lens mounting portion 332 is in the shape of a through cylinder and vertically protrudes from the top surface 331a, and the first lens 21 can be installed in the first lens mounting portion 332; the position and structure of the fourth ball groove 333 correspond to those of the third ball groove 323, and are used to cooperate with each other to accommodate the second OIS ball 36. An AF guide plate 40 (described in detail below) of the AF assembly 4 is connected to one side edge of the bottom surface 331b, or the AF guide plate 40 may be directly formed on the side edge of the bottom surface 331b, so that the AF guide plate 40 is integrally formed with the third bracket body 331. The AF guide plate 40 and the third bracket body 331 are preferably perpendicular to each other.

[0037] The OIS card 34 includes a card body 341 and a plurality of snap-fitting parts 342 corresponding to the snap-fitting area 315 of the first bracket frame 311. The card body 341 is a rectangular flat frame, the snap-fitting part 342 is a flat sheet body with a shape corresponding to the snap-fitting area 315, and the plurality of snap-fitting parts 342 are all arranged on the same side surface of the card body 341. The snap-fitting part 342 can be connected to the card body 341 or formed integrally, and is preferably arranged perpendicular to the card body 341. The snap-fitting part 342 is provided with a snap-fitting structure (not numbered in the figure) for snapping with the snap-fitting area 315.

[0038] The number and specification of the first OIS balls 35 correspond to the first ball groove 313 and the second ball groove 321, and can be rollably mounted in the first ball groove 313 and the second ball groove 321; the number and specification of the second OIS balls 36 correspond to the third ball groove 323 and the fourth ball groove 333, and can be rollably mounted in the third ball groove 323 and the fourth ball groove 333. In this embodiment, the first ball groove 313, the second ball groove 321, the third ball groove 323, and the fourth ball groove 333 can be designed to have the same width and depth specifications, and the first OIS balls 35 and the second OIS balls 36 can correspondingly use balls of the same specifications.

[0039] In this embodiment, the first OIS coil 37a and the first OIS coil 38a adopt racetrack-shaped coils, and their specific features can refer to the prior art and need not be repeated here. The first OIS coil 37a and the first OIS coil 38a are respectively fixedly mounted in the two OIS coil accommodating ports 314 opened in the first bracket frame 312. The first OIS magnet 37b and the second OIS magnet 38b adopt bar magnets, and are both mounted on the third OIS bracket 33. In this embodiment, it is preferred that the first OIS magnet 37b is fixedly mounted on the outside of one side of the third OIS bracket 33 where the AF guide plate 40 is provided, and the second OIS magnet 38b is installed on the outside of another side of the third OIS bracket 33 adjacent to the side where the AF guide plate 40 is provided (that is, perpendicular to each other), so that the length directions of the first OIS magnet 37b and the second OIS magnet 38b are perpendicular to each other.

[0040] Please also read Figure 6 When assembling the OIS assembly 3, the first OIS coil 37a and the second OIS coil 38a can be fixedly mounted on the first OIS bracket 31 according to the above-mentioned specific assembly method, and the first OIS magnet 37b and the second OIS magnet 38b can be fixedly mounted on the third OIS bracket 33. The third ball groove 323 of the second OIS bracket 32 ​​and the fourth ball groove 333 of the third OIS bracket 33 are aligned one by one with each other, and the second OIS ball 36 is rollably mounted in the corresponding third ball groove 323 and the fourth ball groove 333; the second ball groove 321 of the second OIS bracket 32 ​​and the first ball groove 313 of the first OIS bracket 31 are aligned one by one with each other, and the first OIS ball 35 is rollably mounted in the corresponding first ball groove 313 and the second ball groove 321. In this way, by rolling the first OIS ball 35, the first OIS bracket 31 and the second OIS bracket 32 ​​can move relative to each other along the first OIS adjustment direction defined by the orientation of the first ball groove 313 and the second ball groove 321; by rolling the second OIS ball 36, the second OIS bracket 32 ​​and the third OIS bracket 33 can move relative to each other along the second OIS adjustment direction defined by the orientation of the third ball groove 323 and the fourth ball groove 333. It can be understood that since the orientation of the first ball groove 313 and the second ball groove 321 is different from, preferably perpendicular to, the orientation of the third ball groove 323 and the fourth ball groove 333, the first OIS adjustment direction is also different from, preferably perpendicular to, the second OIS adjustment direction. When performing the above-mentioned assembly operation, the assembly direction of the first OIS bracket 31 relative to the third OIS bracket 33 should be set so that the first OIS coil 37a is aligned with the first OIS magnet 37b, and the second OIS coil 38a is aligned with the second OIS magnet 38b.

[0041] Afterwards, the OIS card 34 is placed on the outside of the third OIS bracket 33, that is, on the side of the bottom surface 331b, and each of the snap-fitting parts 342 of the OIS card 34 is oriented toward the third OIS bracket 33 and aligned with each of the snap-fitting areas 315 on the first OIS bracket 31. Then the OIS card 34 is moved toward the first OIS bracket 31, and each of the snap-fitting parts 342 is snapped together with each of the snap-fitting areas 315. The AF guide plate 40 connected or integrally formed on the third OIS bracket 33 is extended through the card body 341, and a part of the third OIS bracket 33 is clamped between the first OIS bracket 31 and the OIS card 34. For example, in this embodiment, the area close to the edge of the side of the third bracket body 331 away from the AF guide plate 40 is clamped between the first OIS bracket 31 and the OIS card 34. In this way, the assembly of the OIS component 3 is completed.

[0042] Please also read Figure 7 The AF assembly 4 includes an AF outer frame 41, an AF carrier 42, an AF magnetic sheet 43, an AF limit magnet 44, an AF coil 45, an AF adjustment magnet 46, an AF ball 47, a circuit board 48, and an AF guide plate 40 connected to or integrally formed with the third OIS bracket 33 as described above.

[0043] The AF outer frame 41 includes a first outer plate 41a, a second outer plate 41b, a third outer plate 41c, and a fourth outer plate 41d. The four outer plates are connected end to end to form a rectangular frame. Adjacent outer plates are perpendicular to each other, and opposite outer plates are parallel to each other. The first outer plate 41a is provided with a limit magnet receiving opening 411 for installing the AF limit magnet 44; the second outer plate 41b and the fourth outer plate 41d, which are arranged opposite to each other, are provided with an AF coil receiving opening 412 for installing the AF coil 45. The internal dimensions of the AF outer frame 41 and the external dimensions of the third OIS bracket 33 enable the third OIS bracket 33 to be installed in the AF outer frame 41.

[0044] The AF carrier 42 is roughly in the shape of a rectangular box with an open bottom, including a rectangular flat plate-shaped carrier top wall 421 and a rectangular frame-shaped carrier frame 422, and the carrier frame 422 is vertically connected to the bottom edge of the carrier top wall 421. The size of the AF carrier 42 is designed to correspond to the AF outer frame 31 and the third OIS bracket 33. When the third OIS bracket 33 is installed in the AF outer frame 41, the AF carrier 42 can be accommodated between the AF guide plate 40 connected to or integrally formed on the third OIS bracket 33 and the inner side surface of the AF outer frame 41. A second lens mounting portion 420 is provided through the middle of the carrier top wall 421, and the second lens 22 can be installed in the second lens mounting portion 420. The carrier frame 422 includes a first inner plate 422a, a second inner plate 422b, a third inner plate 422c, and a fourth inner plate 422d. These four inner plates are connected end to end to form a rectangular frame. Adjacent inner plates are perpendicular to each other, and opposite inner plates are parallel to each other. A recessed first ball track 423 is provided on the outer surface of the first inner plate 422a. The number of the first ball track 423 is preferably two, which are respectively formed on the outer surface of the first inner plate 422a near the two ends of the first inner plate 422a. The second inner plate 422b and the fourth inner plate 422d, which are arranged opposite to each other, are provided with an adjustment magnet receiving port 424 for installing the AF adjustment magnet 46.

[0045] The AF magnetic sheet 43 is made of ferromagnetic material, preferably a steel sheet, and can be attached and fixed to the outer surface of the first inner plate 422a, and is preferably arranged between the two first ball tracks 423. The AF limit magnet 44 is a bar magnet, and is fixedly installed in the limit magnet receiving opening 411.

[0046] In this embodiment, the number of the AF coil 45 and the number of the AF adjustment magnet 46 are preferably two. The AF coil 45 is a racetrack-shaped coil, and its specific features can refer to the prior art and need not be described here. The two AF coils 45 can be fixedly installed in the two AF coil receiving ports 412 respectively. The AF adjustment magnet 46 is a bar magnet, and the two AF adjustment magnets 46 can be fixedly installed in the two adjustment magnet receiving ports 424 respectively.

[0047] The number of AF balls 47 corresponds to the first ball track 423. In this embodiment, the number of AF balls 47 is four, so that each first ball track 423 can accommodate two AF balls 47. Figure 5As shown, a second ball track 401 corresponding to the AF ball 47 and the first ball track 423 is also provided on the inner side of the AF guide plate 40. In this embodiment, there are two second ball tracks 401, which can be aligned with the two first ball tracks 423. The AF ball 47 can be rollably installed in the first ball track 423 and the second ball track 401 at the same time. Preferably, the AF ball 47 can be made of ferromagnetic material so that they can be attracted by magnets.

[0048] The circuit board 48 is preferably made of a flexible printed circuit (FPC), including a middle section 48a and two extension sections 48b. The middle section 48a and the extension sections 48b are both rectangular flat plates. The two extension sections 48b are vertically connected to the middle section 48a at both ends of the middle section 48a, and extend in parallel in the same direction, so that the circuit board 48 as a whole is formed into a rectangular frame with an open side.

[0049] Please also read Figure 8 When assembling the AF component 4, according to the above-mentioned specific assembly method, the AF magnetic sheet 43 is fixedly installed on the outer surface of the first inner plate 422a, preferably arranged between the two first ball tracks 423; the AF limit magnet 44 is fixedly installed in the limit magnet accommodating port 411; the two AF coils 45 are respectively fixedly installed in the two AF coil accommodating ports 412; the two AF adjustment magnets 46 are respectively fixedly installed in the two adjustment magnet accommodating ports 424. The third OIS bracket 33 is installed in the AF outer frame 41, and the AF guide plate 40 connected to or integrally formed on the third OIS bracket 33 is oriented toward the first outer plate 41a of the AF outer frame 41; the AF carrier 42 is installed between the AF guide plate 40 and the third outer plate 41c of the AF outer frame 41, so that the AF guide plate 40 is arranged between the third outer plate 41c and the first inner plate 422a of the AF carrier 42, and the first ball track 423 is aligned with the corresponding second ball track 401, the two AF adjustment magnets 46 are respectively aligned with the two AF coils 45, and the AF magnetic attraction sheet 43 is aligned with the AF limit magnet 44; the AF ball 47 is rotatably installed in the corresponding first ball track 423 and the second ball track 401 at the same time, so that the AF carrier 42 can move relative to the AF guide plate 40 based on the rolling of the AF ball 47. Thereafter, the circuit board 48 is wrapped around the outside of the AF outer frame 41, so that the middle section 48a of the circuit board 48 is parallel to the first outer plate 41a, and the two extension sections 48b are respectively parallel to the second outer plate 41b and the fourth outer plate 41d, and the two AF coils 45 are respectively electrically connected to the two extension sections 48b. Preferably, the two AF coils 45 are also respectively fixed on the two extension sections 48b, thereby completing the assembly of the AF component 4.

[0050] The imaging chip module 5 may be an existing imaging chip module, which is used to convert the optical image signal collected by the lens assembly 2 into an electronic image signal. Its specific technical features can be completely referred to the existing technology, and no further description is needed here.

[0051] Please also read Fig. 9A and Fig. 9B When assembling the camera device, firstly, assemble the OIS component 3 and the AF component 4 according to the above-mentioned specific method, and fix the first OIS bracket 21 and the AF outer frame 41 to each other. It can be understood that since the AF guide plate 40 is connected or integrally formed with the third OIS bracket 33, the OIS component 3 and the AF component 4 are formed as an integrated component. The first lens 21 of the lens assembly 2 is fixedly mounted in the lens mounting portion 332, and the first lens 21 is extended through the third lens hole 320 and the second lens hole 310; the second lens 22 is fixedly mounted in the second lens mounting portion 420, and the optical axes of the first lens 21 and the second lens 22 are arranged on the same straight line. The imaging chip module 5 and the AF outer frame 41 are fixed to each other, so that the optical axes of the first lens 21 and the second lens 22 are aligned with the imaging chip module 5, and the first OIS adjustment direction and the second OIS adjustment direction set in the OIS component 3 are perpendicular to the optical axis direction of the first lens 21 and the second lens 22, so that the direction of the first ball track 423 and the second ball track 401 are parallel to the optical axis direction of the first lens 21 and the second lens 22. The housing 1 is set outside the OIS component 2 and fixed to the imaging chip component 5 and the AF outer frame 41, so that the first lens 21 extends through the first lens hole 10, and the assembly of the camera device is completed. Preferably, the circuit board 48 can be further coated on the outside of the OIS component 3, and the first OIS coil 37a and the second OIS coil 38a can also establish electrical connection with the circuit board 48 coated on the outside and be fixed to each other.

[0052] When the camera device is working, the first lens 21 collects external optical image signals, and the optical image signals are transmitted to the imaging chip module 5 through the first lens 21 and the second lens 22. The imaging chip module 5 converts the optical image signals into electronic image signals, and then the electronic image signals can be subsequently processed according to existing technical means.

[0053] When the camera device needs to perform OIS operation, the first OIS bracket 31, the OIS clamp 34, the first OIS coil 37a, and the second OIS coil 38a constitute the OIS stator part of the OIS component 3, and the second OIS bracket 32, the third OIS bracket 33, the first OIS ball 35, the second OIS ball 36, the first OIS magnet 37b, and the second OIS magnet 38b constitute the OIS mover part of the OIS component 3, and the first lens 21 is fixedly installed in the OIS mover part.

[0054] When the first OIS coil 37a is energized, it is acted upon by an electromagnetic force in the magnetic field of the first OIS magnet 37b. Since the first OIS coil 37a is fixed, the reaction force of the electromagnetic force will drive the first OIS magnet 37b to move closer to or away from the first OIS coil 37a. Figure 4 As shown, at this time, the movement direction of the first OIS magnet 37b approaching or moving away from the first OIS coil 37a is consistent with the first OIS adjustment direction defined by the direction of the first ball groove 313 and the second ball groove 321. In this way, driven by the first OIS magnet 37a, the second OIS bracket 32, the third OIS bracket 33 and the first lens 21 will all move along the first OIS adjustment direction, and at the same time, the first OIS ball 35 will roll in the first ball groove 313 and the second ball groove 321 to assist the movement in this direction. Similarly, when the second OIS coil 38a is energized, it is acted upon by the electromagnetic force in the magnetic field of the second OIS magnet 38b; since the second OIS coil 38a is fixed, the reaction force of the electromagnetic force will drive the second OIS magnet 38b to approach or move away from the first OIS coil 37a; as shown in FIG. Figure 4 As shown, at this time, the movement direction of the first OIS magnet 37b approaching or moving away from the second OIS coil 38a is consistent with the second OIS adjustment direction defined by the direction of the third ball groove 323 and the third ball groove 333, so that driven by the second OIS magnet 38a, the third OIS bracket 33 and the first lens 21 will move along the second OIS adjustment direction, and at the same time, the second OIS ball 36 will roll in the third ball groove 323 and the fourth ball groove 333 to provide assistance for movement in this direction.

[0055] It can be understood that, through the above-mentioned actuation principle, the OIS component 3 can drive the first lens 21 to move in the first OIS adjustment direction and the second OIS adjustment direction, which are different from each other and preferably perpendicular to each other, and the first OIS adjustment direction and the second OIS adjustment direction are both perpendicular to the optical axis direction of the first lens 21. In this way, the position deviation of the first lens 21 caused by shaking in two different and preferably perpendicular directions (usually referred to as the X-axis direction and the Y-axis direction in the art) perpendicular to its optical axis can be compensated, ensuring that the first lens 21 is in the best imaging position to achieve the OIS effect. According to the principle of electromagnetic induction, by adjusting the direction, size and duration of the current of the first OIS coil 37a and the second OIS coil 38a, the direction, speed and distance of the first lens 21 moving in the first OIS adjustment direction and the second OIS adjustment direction can be adjusted, so that the OIS operation is more precise.

[0056] When the camera device performs AF operation, the AF outer frame 41, the AF limit magnet 44, the AF coil 45, the circuit board 48, and the AF guide plate 40 constitute the AF stator part of the AF component 4, and the AF carrier 42, the AF magnetic sheet 43, the AF adjustment magnet 46, and the AF ball 47 constitute the AF mover part of the AF component 4, and the second lens 22 is fixedly installed in the AF mover part.

[0057] After the two AF coils 45 are energized, they are respectively subjected to electromagnetic force in the magnetic field of the corresponding AF adjustment magnet 46; since the AF coil 45 is fixed, the reaction force of the electromagnetic force will drive the AF adjustment magnet 46 to move, and when the AF adjustment magnet 46 moves, it will drive the entire AF mover part and the second lens 22 to move. In this embodiment, according to the prior art in the art, by specifically arranging the winding direction of the AF coil 45 and the direction of the energized current, the direction of the electromagnetic force received by the AF coil 45 in the magnetic field of the corresponding AF adjustment magnet 46 after the AF coil 45 is energized is parallel to the optical axis direction of the first lens 21 and the second lens 22 (usually referred to as the Z-axis direction in the art), and the direction of the first ball track 423 and the second ball track 401. In this way, the reaction force of the electromagnetic force can drive the AF mover part and the second lens 22 to move along the Z-axis direction, and at the same time, the AF ball 47 will roll in the first ball track 423 and the second ball track 401 to provide assistance for the movement.

[0058] It can be understood that, through the above-mentioned actuation principle, the AF component 4 can drive the second lens 22 to move along the Z-axis direction, thereby adjusting the distance between the second lens 22 and the imaging chip component 5, thereby realizing the AF operation. According to the principle of electromagnetic induction, by adjusting the direction, magnitude and duration of the current of the AF coil 45, the direction, speed and distance of the second lens 22 moving in the Z-axis direction can be adjusted, making the AF operation more precise.

[0059] During the operation of the AF assembly 4, the AF limit magnet 44 can continuously generate attraction to the AF magnetic sheet 43, so that the AF magnetic sheet 43 drives the AF carrier 42 to approach the AF limit magnet 44, thereby stably clamping the AF ball 47 between the AF carrier 42 and the AF guide plate 40 to prevent the AF ball from falling out. Preferably, the AF ball 47 can also be made of ferromagnetic material, that is, made into magnetic balls, so that they can also be attracted by the AF limit magnet, further improving the reliability of the structure.

[0060] In particular, when the OIS component 3 drives the OIS movable part to move in the second OIS adjustment direction according to the above-mentioned actuation mode, based on the above-mentioned structural design, the third OIS bracket 33 will drive the AF carrier 42 to move together. At this time, the distance between the two AF coils 45 and their corresponding AF adjustment magnets 46 will change, one distance becomes closer and the other distance becomes farther; but at this time, as long as the two AF coils 45 are energized at the same time, the electromagnetic forces generated by them will compensate each other, so that the driving force received by the AF movable part as a whole remains stable.

[0061] Based on the above-mentioned specific technical scheme, the camera device provided by the above-mentioned embodiment of the present application has many beneficial effects compared with the prior art, for example: (1) The first lens 21 and the second lens 22 of the lens assembly 2 can be driven to adjust their positions respectively. When performing OIS operation, only the first lens 21 needs to be driven to move, and when performing AF operation, only the second lens 22 needs to be driven to move, which can reduce the power required for OIS operation and AF operation, reduce energy consumption, and increase service life. (2) In the camera device, the overall structure of the OIS component 3 and the AF component 4 are relatively simple, and the OIS component 3 is not arranged around the AF component 4 as in most prior arts, but is arranged in sequence with the AF component 4 along the optical axis direction of the lens assembly 2 (i.e., the above-mentioned Z-axis direction), and will not extend a significantly larger size in the direction perpendicular to the optical axis of the camera device (i.e., the above-mentioned X-axis direction and Y-axis direction), which is conducive to the miniaturization of the overall structure. (3) The third OIS bracket 33 of the OIS assembly 3 and the AF guide plate 40 of the AF assembly 4 are interconnected or integrally formed structures, so that the OIS assembly 3 and the AF assembly 4 have common components to a certain extent, making the overall structure more compact.

[0062] Another aspect of the present application provides an intelligent terminal, which may be, for example, a smart phone, a tablet computer, a personal computer, a wearable device, etc., and the intelligent terminal includes a camera device as described in the above embodiment. It can be understood that the intelligent terminal can also obtain the beneficial technical effects of the above aspects compared with the prior art because it includes the camera device as described in the above embodiment.

[0063] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A camera device, characterized in that: The camera device includes a lens assembly, an optical image stabilization (OIS) assembly, an auto focus (AF) assembly, and an imaging chip assembly; the lens assembly includes a first lens and a second lens, the OIS assembly includes an OIS stator part and an OIS mover part movably mounted in the OIS stator part, and the AF assembly includes an AF stator part and an AF mover part movably mounted in the AF stator part; the OIS stator part, the AF stator part and the imaging chip module are fixed to each other, the first lens is mounted in the OIS mover part, and the second lens is mounted in the AF mover part; the imaging chip module is used to convert the optical image signal collected by the lens assembly into an electronic image signal.

2. The imaging device according to claim 1, wherein: The OIS stator part includes a first OIS bracket and a second OIS bracket, and the OIS mover part includes a third OIS bracket, a first OIS ball, and a second OIS ball; the first OIS ball can be rolled along a preset first OIS adjustment direction between the first OIS bracket and the second OIS bracket, and the second OIS ball can be rolled along a preset second OIS adjustment direction between the second OIS bracket and the third OIS bracket, and the first OIS adjustment direction is different from the second OIS adjustment direction; the first lens is installed in the third OIS bracket.

3. The imaging device according to claim 2, wherein: The OIS stator part also includes a first OIS coil and a second OIS coil, and the OIS mover part also includes a first OIS magnet and a second OIS magnet; the first OIS coil and the first OIS magnet are used to generate electromagnetic force to drive the OIS mover part in the first OIS adjustment direction, and the second OIS coil and the second OIS magnet are used to generate electromagnetic force to drive the OIS mover part in the second OIS adjustment direction.

4. The imaging device according to claim 2, wherein: The AF stator part includes an AF outer frame, and the AF mover part includes an AF carrier; the AF carrier is movably mounted in the AF outer frame, and the second lens is mounted in the AF carrier.

5. The imaging device according to claim 4, wherein: The AF stator part also includes an AF coil, and the AF mover part also includes an AF adjustment magnet. The AF coil is mounted on the AF outer frame, and the AF adjustment magnet is mounted on the AF carrier. The AF coil and the AF adjustment magnet are used to generate electromagnetic force to drive the AF mover part.

6. The imaging device according to claim 4, wherein: The AF stator part further includes an AF guide plate, and the AF mover part further includes an AF ball. The AF guide plate is arranged between the AF outer frame and the AF carrier, and the AF ball is rotatably installed between the AF carrier and the AF guide plate.

7. The imaging device according to claim 6, wherein: The AF guide plate is connected to or integrally formed with the third OIS bracket.

8. The imaging device according to claim 6, wherein: The AF stator part also includes an AF limiting magnet, and the AF mover part also includes an AF magnetic sheet. The AF limiting magnet is installed on the outer frame, and the AF magnetic sheet is installed on the AF carrier. The AF limiting magnet is used to generate an attractive force on the AF magnetic sheet, so that the AF magnetic sheet drives the AF carrier to approach the AF limiting magnet, thereby clamping the AF ball between the AF carrier and the guide plate.

9. The imaging device according to claim 1, wherein: The AF component further includes a circuit board, which is coated on the outside of the OIS component and the AF component, and the OIS component and the AF component are both electrically connected to the circuit board.

10. An intelligent terminal, characterized in that: The invention comprises an imaging device as claimed in any one of claims 1 to 9.

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