WO2023241535A1 - Optical lens drive assembly and camera module thereof - Google Patents

Abstract

An optical lens drive assembly (1), comprising an optical lens (10), a drive motor (20), and a protective housing (21). The protective housing (21) is provided with a housing light through hole (211) and a housing accommodating portion (212), and the housing light through hole (211) is mainly used for accommodating the optical lens (10), so that the shape of a light incident hole of the optical lens (10) is consistent with that of the housing light through hole (211); an internal space formed by the motor housing accommodating portion (212) comprises an optical lens accommodating portion (2121) and a drive motor accommodating portion (2122), the optical lens accommodating portion (2121) surrounds the periphery of the optical lens (10), the bottom surface of the drive motor accommodating portion (2122) is fixed on the side edge of a drive motor base (26) to form a cladding space, and components of the drive motor (20) are cladded in the formed cladding space so as to form a protective effect on the internal components.

Description

An optical lens driving component and its camera module Technical field

The present invention relates to the technical field of camera modules, and in particular, to a lens driving device and a camera module.

Background technique

With the development trend of thinner and lighter mobile terminals, the structure of the camera module configured on it also needs to be miniaturized, but at the same time, the imaging quality of the camera module is required to be improved. To improve the imaging quality of the camera module, not only the The size of the photosensitive chip and the components adapted to it, and the driving force of the driving structure also need to be increased.

In the camera module structure, the drive structure is mainly used to drive the optical lens to achieve focus and anti-shake to capture clearer images. For most high-pixel camera modules, the drive structure is an essential component. , when the size of the photosensitive chip increases, the size of the corresponding optical lens also increases, and the optical lens is arranged inside the driving structure, and the size of the corresponding driving structure also increases.

How to increase the size of the photosensitive chip while ensuring the miniaturization of the overall structure of the camera module, especially ensuring that the driving force provided by the driving structure can not only drive the optical lens to achieve focus and anti-shake functions, but also achieve the internal space of the driving structure. Effective utilization and reduction of the size of the drive structure are issues that technicians urgently need to solve.

In response to the above problems, this solution provides a split optical lens drive component and camera module structure, which can effectively solve some or most of the above problems. While increasing the size of the photosensitive chip and improving the imaging quality of the camera module, it can Achieve miniaturization of drive structure.

Contents of the invention

An object of the present invention is to provide an optical lens drive assembly and a camera module thereof with a simple structure, which can ensure the miniaturization of the camera module and at the same time realize the focusing function of the lens assembly in the direction of the optical axis and the protection of the orthogonal plane of the optical axis. jitter function.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which realize the shooting process by arranging the optical lens as a split structure and using the driving structure to drive part of the lens group to move along the optical axis direction. focus function.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof. The optical lens is configured as a split lens, with a first lens part, a second lens part and a third lens part respectively along the optical axis direction. The lens part, in which the first lens part, the second lens part and the third lens part form an entire optical imaging system, can be used for imaging of the camera module.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which are fixedly connected through the reserved mounting positions at the barrel end of the first lens part and the third lens part, forming a third lens part between them. The activity space of the second lens part is to ensure that the second lens part can be adjusted within the space formed by the two lens parts.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which are arranged inside the driving structure through the second lens part to drive the second lens part between the first lens part and the third lens part. The formed space moves along the direction of the optical axis to adjust the position of the second lens part and obtain clear imaging.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which provide a carrier extension bracket on the focusing part carrier of the driving motor so that the bracket extends to the first lens part and the third lens part. inside the space to support the second lens part.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which extend the extension bracket of the focus carrier of the driving motor from the four corners of the motor through the first lens part and the third lens part. A side wall channel is reserved on the edge of the lens barrel to extend into the upper surface of the third lens part to fully utilize the internal space of the drive assembly.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which reserve an escape groove on the lower surface of the focus carrier so that the third lens mounting portion on the anti-shake carrier is partially disposed on The position of the third lens mounting part is reserved in the avoidance groove to achieve miniaturization of the overall drive structure.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which form a third lens mounting portion on the bottom surface of the anti-shake portion carrier to fix the third lens portion to the third portion formed by the anti-shake carrier. on the lens mounting part to ensure the stability of the third lens part.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which form a limiting space for the focusing portion on the carrier of the anti-shake portion, and accommodate part of the structure of the focusing portion carrier in the limiting space formed therein. bit space to prevent excessive movement of the focus part carrier.

Another object of the present invention is to provide an optical lens driving assembly and a camera module thereof, which use fasteners to fix the magnet on the anti-shake carrier. The fastener can be integrally formed with the anti-shake carrier. The injection molding process is used to integrally fix the magnets on the anti-shake carrier to reduce the overall weight of the anti-shake part and reduce the requirements for anti-shake driving force.

In order to achieve the above objects, according to the first aspect of the present invention, the technical solution adopted by the present invention is:

An optical lens driving assembly, characterized by including:

Optical lens, the optical lens is a split optical lens, the split optical lens has an optical axis, and the direction along the optical axis is a first lens part, a second lens part and a third lens part, and the third lens part A lens part is disposed above the third lens part, an accommodating space is formed between the first lens and the third lens part, and the second lens part is disposed in the accommodating space;

A drive motor, the drive motor is used to drive the optical lens to adjust its position; and

A housing, the housing includes an optical lens receiving part and a driving motor receiving part, the side surfaces where the first lens part and the third lens part are fixed have at least one side wall channel, the optical lens receiving part surrounds the A side wall channel is provided, and the drive motor receiving portion is provided around the drive motor.

In one embodiment, the lower surface of the optical lens housing has an extension plane, and the extension plane is bonded and fixed with the upper surface of the drive motor housing. The lens housing and the drive motor housing The optical lens part is accommodated in the space formed by the optical lens part in its inner space.

In one embodiment, the upper surface of the optical lens accommodating part has a light hole, and the diameter of the light hole is larger than the light aperture of the optical lens.

In one embodiment, the optical lens receiving portion surrounds at least a portion of the outer periphery of the first lens portion and the second lens portion.

In one embodiment, the upper surface of the third lens portion is lower than the upper surface of the drive motor receiving portion.

In one embodiment, there is a first gap between the optical lens receiving portion of the housing and the upper surface of the first lens portion to facilitate adjustment of the position of the optical lens.

In one embodiment, there is a second gap between the optical lens accommodating portion of the housing and the side of the first lens portion, and the distance of the second gap is greater than the distance of the first gap.

In one embodiment, the drive motor includes an anti-shake carrier, and the sides of the anti-shake carrier and the drive motor A third gap is formed on the side of the accommodating portion, and the third gap is located at the end of the driving motor to reserve a movable gap for the optical lens in the horizontal plane.

In one embodiment, the second lens part is disposed in the accommodation space and is movable along the direction of the optical axis.

In one embodiment, the drive motor includes a base, and the bottom surface of the drive motor accommodating part is fixed on the side of the base to form a covering space, and the components of the drive motor are covered in the formed space. within the space.

According to the second aspect of the present invention, the technical solution adopted by the present invention is: an optical lens driving assembly, which is characterized in that it includes:

Optical lens. The optical lens has an optical axis. The optical lens is a split optical lens. Along the direction of the optical axis, there are a first lens part, a second lens part and a third lens part. The first lens part is Fixed above the third lens part, the first lens part and the third lens part form an accommodating space, the side of the accommodating space has at least one side wall channel, the side wall channel and The accommodating spaces are connected, and the second lens part is disposed in the accommodating spaces;

Focus carrier, the focus carrier has an extension bracket, the extension bracket extends into the accommodation space through the side wall channel and is fixed to the second lens part;

An anti-shake carrier, the focus carrier is accommodated in the anti-shake carrier, and the anti-shake carrier has a third lens mounting part;

Wherein, the third lens part is fixed to the third lens mounting part, and the second lens part is arranged above the third lens part through an extension bracket on the focus carrier, so that the first lens The second lens portion and the third lens portion can image.

In one embodiment, the second lens part moves along the direction of the optical axis in the accommodation space to achieve focusing, wherein the focusing stroke (or movable stroke) of the second lens part does not exceed 360um. .

In one embodiment, the height of the side wall channel exceeds 520um to provide sufficient movement stroke of the focus carrier and the second lens part.

In one embodiment, the number of lenses of the optical lens is greater than seven, wherein the number of first lens groups in the first lens part is at least three.

In one embodiment, the second lens part includes a second lens barrel and at least a second lens group, and the second The entrance aperture of the second lens barrel of the lens part is larger than the light exit aperture

In one embodiment, the inner lower surface of the second lens barrel serves as the supporting surface of the second lens group.

In one embodiment, the extension bracket of the focus carrier includes an extension part and a load-bearing part. The load-bearing part is fixed to the extension part. The load-bearing part may be an annular structure, and the extension part extends into In the accommodation space formed by the first lens part and the third lens part, the second lens part is fixed to the upper end surface of the carrying part.

In one embodiment, a through hole is formed on the carrying part, and the inner diameter of the through hole is larger than the diameter of the light outlet of the second lens part.

In one embodiment, the inner diameter of the annular structure of the bearing portion is larger than the diameter of the light entrance hole of the third lens portion.

In one embodiment, the extension bracket extends upward and carries the second lens part, so that the second lens part is disposed above the third lens part and above the driving motor.

According to the third invention of the present invention, the technical solution adopted by the present invention is:

An optical lens driving assembly, characterized by including:

Optical lens, the optical lens has an optical axis, the optical lens is a split optical lens, and the direction along the optical axis is a first lens part, a second lens part and a third lens part in sequence, the first lens An accommodating space is formed between the lens part and the third lens part, and the second lens part is disposed in the accommodating space;

And a drive motor, the drive motor is used to drive the optical lens for position adjustment, the drive motor includes:

A focusing part, the focusing part is fixed to the second lens part, and drives the second lens part to move along the direction of the optical axis for focusing;

An anti-shake portion, the anti-shake portion is configured to accommodate the focusing portion inside the anti-shake portion, the anti-shake portion has a third lens mounting portion, the third lens portion is fixed to the third lens mounting portion The anti-shake unit drives the optical lens to move in a direction perpendicular to the optical axis for anti-shake;

A support part used to carry the anti-shake part;

A base, located on the lower side of the anti-shake part, with a support part disposed between the base and the anti-shake part;

Wherein, a holder is provided between the anti-shake part and the focusing part to hold the focusing part inside the anti-shake part.

In one embodiment, there is at least one side wall channel between the first lens part and the third lens part, the focusing part includes a focusing carrier, the focusing carrier includes an extending bracket, the extending bracket The bracket extends into the accommodation space through the side wall channel, and the extension bracket is fixed to the second lens portion.

In one embodiment, the extension bracket of the focus carrier includes an extension part and a bearing part, the bearing part is fixed to the extension part, and the extension part extends into the first lens part and the third lens part to form In the accommodation space, the second lens part is fixed on the upper end surface of the carrying part.

In one embodiment, the number of the extension parts is three or more, and the load-bearing part may be an annular structure. The extension parts are evenly distributed and connected to the peripheral side of the annular structure, and are connected with the load-bearing part. Partially fixed.

In one embodiment, the holding part holds the focusing part inside the anti-shake part, and the second lens part fixed to the focusing part is positioned relative to the first lens through the centering function of the holding part. Keep the optical axis consistent with the third lens part.

In one embodiment, the anti-shake part includes an anti-shake carrier, the anti-shake carrier extends from the inner side to form at least one limiting body, and the third lens part is fixed on the limiting body.

In one embodiment, the limiting body is provided on the inner side of the anti-shake carrier, the limiting body extends from the inner side of the anti-shake carrier, and the limiting body includes a horizontal part and a vertical part, The horizontal part extends horizontally along the inner side of the anti-shake carrier, and the vertical part is connected to the horizontal part and extends upward along the optical axis direction, wherein the horizontal part has a certain width.

In one embodiment, the lower surface of the focusing carrier has an escape groove, and the escape groove is provided on the horizontal part of the limiting body.

In one embodiment, the focusing part further includes a pair of focus carriers, the anti-shake part further includes an anti-shake carrier, the holder is connected to the anti-shake carrier and at least one end surface of the focus carrier, and the focus part is The carrier remains in the The interior of the anti-shake carrier.

In one embodiment, the drive motor further includes a conductive portion connecting the anti-shake portion and the focusing portion.

In one embodiment, the conductive portion further includes a connecting portion, the connecting portion is a bent structure, and the connecting portion is provided on at least two sides of the anti-shake carrier.

Description of the drawings

Figure 1 is a structural perspective view of an optical lens driving assembly according to a specific embodiment of the present invention;

Figure 2 is an exploded view of the optical lens driving assembly according to the above-described embodiment of the present invention;

Figure 3 is a perspective view of the internal structure of the optical lens driving assembly according to the above-mentioned embodiment of the present invention;

Figure 4 is a schematic cross-sectional view of an optical lens driving assembly according to the above embodiment of the present invention;

Figure 5 is a side view of the internal structure of the optical lens and drive motor according to the above embodiment of the present invention;

Figure 6 is an exploded schematic diagram of the anti-shake carrier and the focus carrier according to the above-mentioned embodiment of the present invention;

Figure 7 is a schematic diagram of the connection between the focusing part, the anti-shake part and the conductive part according to the above-mentioned embodiment of the present invention;

Figure 8 is a schematic diagram of the bottom structure of the anti-shake part according to the above embodiment of the present invention;

Figure 9 is a schematic structural diagram of the housing of the drive motor according to the above embodiment of the present invention;

Figure 10 is a cross-sectional view of the anti-shake part and the third lens part installed in the above embodiment according to the present invention;

Figure 11 is a structural schematic diagram of the installation of the base and the anti-shake coil in the above embodiment of the present application;

FIG. 12 is a schematic structural diagram of the installation of the second lens part and the focusing part according to the above-mentioned embodiment of the present application.

Detailed ways

Below, the present invention will be further described with reference to specific implementation modes. It should be noted that, on the premise of no conflict, the embodiments or technical features described below can be arbitrarily combined to form new embodiments.

In the description of the present invention, it should be noted that for directional words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower" , "Front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise" ", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be in a specific orientation. The construction and operation should not be construed as limiting the specific protection scope of the present invention.

It should be noted that the terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

The terms "comprising" and "having" and any variations thereof in the description and claims of this application are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or product that includes a series of steps or units. Apparatus are not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such processes, methods, products or devices.

In the description of the present invention, it should also be noted that, unless otherwise clearly stated and limited, the terms "set", "installation", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, It can also be a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, a contact connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

As an important component of camera module imaging, the photosensitive chip plays an important role in the structure of the camera module. By increasing the size of the photosensitive chip, the imaging quality of the camera module can be effectively improved. In order to cater to With the development trend of thinner and lighter mobile terminals, the overall structure also needs to be miniaturized. The increase in the size of the photosensitive chip, especially when the image surface of the photosensitive chip gradually increases, will increase the size and weight of the optical lens adapted to it. The drive structure is mainly used to drive the optical lens to achieve focus and anti-shake functions. Under conventional solutions, when the volume of the optical lens increases, the drive structure is required to provide greater driving force to achieve the focus and anti-shake functions of the optical lens.

In order for the driving structure to provide greater driving force, the structure of the driving structure itself needs to be improved. In the existing technology, the driving force of the driving structure mainly comes from the interaction force generated between the magnet and the coil. By increasing the force of the magnet, Although increasing the volume or increasing the number of turns of the coil can provide greater driving force, it will increase the volume of the driving structure and cause problems during the driving process. During the operation of the moving structure, more heat is generated and energy consumption increases.

In this embodiment, in the description of some embodiments, the orthogonal coordinate system (X, Y, Z) is used for explanation. The Z direction is the direction of the optical axis and the front and rear direction. The X direction and the Y direction that are orthogonal to the Z axis are The direction is the direction orthogonal to the optical axis, the ” is the direction orthogonal to the Z-axis, and “axial direction” refers to the corresponding setting between the two Z-axis orthogonal surfaces, including not only the direction parallel to the Z-axis, but also the direction close to parallel to the Z-axis, such as in the figure As shown in 8, in this application, the direction of the optical axis is the Z-axis direction, and the direction perpendicular to the optical axis is the X/Y direction.

This solution provides an optical lens driving assembly 1. As shown in Figures 1 to 4, an optical lens driving assembly 1 includes an optical lens 10 and a driving motor 20. The optical lens 10 is a split optical lens, which includes multiple In this application, the optical lens 10, that is, the split optical lens has an optical axis. Along the optical axis, the direction from the image side to the object side is the first lens unit 11 and the second lens unit 12. and a third lens part 13, wherein the first lens part 11, the second lens part 12 and the third lens part 13 form an imaging optical system in this application, the first lens part 11 includes a first lens barrel 111 and at least a first lens group 112, the second lens portion 12 includes a second lens barrel 121 and at least a second lens group 122, the third lens portion 13 includes a third lens barrel 131 and at least a third lens group 132. The lens group includes at least one lens and more than one lens combination, not specifically a plurality of structures. In a specific embodiment, the number of lenses of the optical lens is 8, of which the number of the first lenses 112 is 4, the number of the second lens group 122 is 2, and the number of the third lens group 132 is The number is 2 pieces. The number of the lenses is not limited to this arrangement. In another variant embodiment, the number of the first lenses 112 is 5 pieces, the number of the second lens group 122 is 1 piece, and the number of the second lens group 122 is 1 piece. The number of the three-lens group 132 is 2. The above are two example ways of setting the number of lenses of a split lens. In other embodiments, the setting of the number of lenses is not limited to the above two ways. Along the optical axis From the object side to the imaging side, the sensitivity of the optical lens decreases in sequence. In the optical design, it is expected to optimize the optical performance by moving the structural diaphragm backward. It is recommended to locate it in the third or fourth lens position. At the same time, the corresponding lens clear aperture is smaller, which can also facilitate the molding and assembly of external black objects. Therefore, It is preferable that the first lens part 11 is provided with a lens group with a small outer diameter, and the second lens part 12 and the third lens part 13 are provided with a lens group with a relatively large outer diameter. In addition, since the three lens parts are pre-assembled separately and finally the three groups are assembled into a whole, the inner diameter and the outer diameter between the lens parts show different size correspondences. In this application, the diameter of the lenses in the first lens group 111 is smaller than the diameters of the second lens group 121 and the third lens group 131 . Specifically, the inner diameter of the first lens part 11 is much smaller than the second lens part 12 the inner diameter of the second lens The inner diameter of the lens portion 12 is smaller than the inner diameter of the third lens portion 13, so that the inner diameter of each lens group is adapted to the image of the optical imaging system, which not only ensures the imaging of the optical system. At the same time, the outer diameters of the first lens barrel 111 and the third lens barrel 131 in this application are larger than the second lens barrel 121 , which is suitable for pre-assembly of the first lens barrel 111 and the third lens barrel 131 , and is also beneficial to the second lens barrel 121 The active calibration assembly is suitable for improving the imaging accuracy of the optical system by actively calibrating the relative position relationship of at least one lens group.

According to one aspect of the present application, an optical lens driving motor 20 is provided. As shown in Figures 1 to 8, the driving motor 20 includes a protective shell 21, a focusing part 22, an anti-shake part 23, a conductive part 24, and a holding part. 25. Base 26 and support part 27. The protective shell 21 is used to accommodate other components in its internal space to provide corresponding protection for the internal components of the drive motor 20 . The focusing part 22 is used to accommodate the optical lens part, and drive the optical lens to move along the direction of the optical axis under the action of its driving force. The focusing part 22 is disposed inside the anti-shake part 23 , and the anti-shake part 23 drives the optical lens 10 and the focusing part 22 to move in a direction perpendicular to the optical axis. In some optional embodiments, the holding part 25 of the optical lens driving motor 20 elastically connects the focusing part 22 and the anti-shake part 23 to keep the focusing part 22 inside the anti-shake part 23. Since the holding part The elastic effect of 25 can make the focusing part 22 return to its original position after performing focusing movement. The drive motor 20 also includes a conduction part 24 , which mainly ensures that the circuit of the drive motor is conductive, and is mainly used to conduct the focusing part 22 , the anti-shake part 23 and the external power supply device to ensure that the drive motor 20 The circuit is stable during operation. The base 26 is disposed below the anti-shake portion 23 . A support portion 27 is disposed between the base 26 and the anti-shake portion 23 . The support portion 27 is disposed between the anti-shake portion 23 and the base 26 . In the remaining area, the anti-shake portion 23 is supported. In some embodiments, the support portion 27 performs sliding or rolling friction when the anti-shake portion 23 moves horizontally relative to the base 26 to reduce the anti-shake portion. 23 relative to the resistance during movement of the base 26.

As shown in FIGS. 5 to 8 , the focusing part 22 is mainly used to drive the second lens part 12 to move along the direction of the optical axis, so that the camera module can image clearly. The focus part mainly includes a focus carrier 221, a focus coil 222, a magnet 223 and an anti-shake carrier 231. The second lens part 12 is fixed on the focus carrier 221. The focus coil 221 is disposed on the side wall of the focus carrier 221. The magnet 223 is disposed on the anti-shake carrier 231 and faces the focus coil 221 . In this application, the focus carrier 221 further includes a carrier body 2221, an extension bracket 2222, a coil installation position 2223 and an escape groove 2224. The extension bracket 2222 is disposed on the carrier body 2221 , extends inwardly and/or upwardly from the carrier body 2221 and carries the second lens part 12 , so that the second lens part 12 is disposed above the third lens part 13 .

The coil mounting position 2223 is provided on the outer side of the carrier body 2221 and is located on the side of the carrier body 2221 the central region. Specifically, the coil installation position 2223 may be an annular groove formed in the middle of the outer surface of the carrier body 2221. In some embodiments, the annular groove can be integrally formed with the carrier body 2221, that is, the coil mounting position 2223 is directly formed on the mold during the injection molding process of the carrier body 2221. The focus coil 222 is wound around the coil mounting position 2223 formed by the carrier body 2221, and interacts with the magnet 223 surrounding the outside of the focus coil 222 to drive the focus portion 22 to move along the optical axis.

As shown in Figure 12, the extension bracket 2222 further includes a bearing portion 22221 and an extension portion 22222. The extension portion 22222 extends from the focus carrier body 2221 along its upper and/or inner direction. In some preferred embodiments, this extension The portion 22222 extends from the four corners or four sides of the focus carrier body 2221 in the upper and/or inner direction. In some optional embodiments, the extension part 2222 and the upper end surface 2221 of the carrier body form a certain height difference to facilitate the installation of the second lens part 12. The second lens part 12 protrudingly disposed above the motor carrier can be more Facilitates active calibration and reduces motor shoulder height. One end of the extension part 22222 is connected to the carrier body 2221, and the other end is connected to the carrying part 22221. The carrying part 22221 is used to carry the second lens part 12 and is bonded and fixed with the second lens part 12. In a specific implementation, , the bearing part 22221 may be a circular structure, and the outer side of the circular structure is fixed to the extension part 22222, that is, the extension part 22222 supports the bearing part 22221 on the upper end surface of the carrier body 2221, so that the bearing part 22221 has a certain height difference with the carrier body 2221. The upper surface of the bearing portion 22221 is the installation position of the second lens portion 12. The upper surface of the bearing portion 22221 is a horizontal annular shape and is in contact with the second lens portion. The lower surface of the second lens barrel 121 of 12 is bonded and fixed, and maintains a distance from the upper end surface of the carrier body 2221.

As shown in FIGS. 3 to 4 , the driving motor 20 and the optical lens 10 are combined to form the optical lens driving assembly 1 of the present application. The optical lens 10 is a split optical lens, which includes a plurality of optical lens parts. In the specific embodiment of the present application, the optical lens 10 is composed of a first lens part 11, a second lens part 12 and a third lens part 13 in sequence along the direction of the optical axis, wherein the first lens part 11 and the third lens part The three lens parts 13 are fixedly connected, and the first lens part 11 is fixed above the third lens part 13, that is, the lower end surface of the first lens barrel 111 and the upper end surface of the third lens barrel 131 are fixed, wherein the The fixation point between the first lens part 11 and the third lens part 13 forms at least one side wall channel. In this application, there are preferably two or four channels, which facilitates clamping and assembly of the second lens part 121 from the outside while maintaining the clamping force. balance. An accommodating space is formed between the first lens part 11 and the third lens part 13, and the second lens part 12 is disposed inside the accommodating space. The second lens part 12 is fixed on the focus carrier 221 , and the connection position of the first lens part 11 and the third lens part 13 forms a The side wall channel is connected with the accommodating space. The focus carrier 221 further includes an extension bracket 2222. The extension bracket 2222 extends into the accommodating space through the side wall channel and is connected with the second lens part 12 Fixed, the second lens part 12 is disposed between the first lens part 11 and the third lens part 13 . Under the focus driving action of the focusing part 22, the second lens part 12 can be driven to move along the optical axis in the accommodation space to perform focusing or zooming movements. The third lens part 13 is disposed inside the anti-shake part 23 and fixed with the anti-shake part 23 . Among them, the third lens part 13 is fixedly connected to the first lens part 11, the second lens part 12 is fixed on the focusing part 22, the focusing part 22 is accommodated inside the anti-shake part 23, and the focusing part 22 is held in the anti-shake part 23 by the holding part 25 . The anti-shake part 23 can drive the first lens part 11 , the second lens part 12 and the third lens part 13 to move synchronously in a direction perpendicular to the optical axis.

In a specific embodiment, the entrance aperture of the second lens barrel 121 of the second lens part 12 is larger than the light exit aperture, and the inner bottom surface of the second lens barrel 121 serves as the supporting surface of the second lens group 122. This reduces the risk of stray light and makes subsequent assembly easier.

In a specific embodiment, in order to allow the light of the second lens part 12 to pass through, a through hole is formed on the carrying part 22221, and the diameter of the through hole is larger than the diameter of the light hole of the second lens part 12, so that the light Passing through the second lens part 12 and entering the third lens part 13, where the inner diameter of the bearing part 22221 is larger than the diameter of the light entrance hole of the third lens part 13, and is also larger than the diameter of the light exit hole of the second lens part 12, it can be reduced The risk of stray light is generated between the two lens groups, and at the same time, the carrying portion 22221 avoids the light path diffusion path of the optical lens 10 where it is located.

Specifically, in this application, the number of extension parts 22222 of the focus carrier extension bracket 2222 is multiple. In a specific embodiment, the number of extension parts 22222 is at least three, which are evenly arranged on the focus carrier. To ensure the flatness of the installation of the second lens part 12, the extension bracket extends upward and/or inward to a certain height along the corners or edges of the carrier body 2221, and extends to the first lens part 11 and the second lens part 12. In the accommodation space formed by the three-lens part 13. Wherein, after the first lens part 11 and the third lens part 13 are fixed, at least one side wall channel is formed on the side of the connection point between the first lens part 11 and the third lens part 13, and the extension part 22222 passes through the first lens part 11 and the third lens part 13. The side wall channel formed by the lens part 11 and the third lens part 13 extends into the accommodation space. One end of the extension part 22222 is connected and fixed to the bearing part 22221, and the second lens part 12 is arranged on the bearing part 22221. end surface, so that the second lens part 12 can move along the direction of the optical axis in the accommodation space to focus or zoom under the action of the focusing part 22 .

In this application, as shown in FIG. 3 , the second lens part 12 is located in the internal space formed by the second lens part 11 and the third lens part 13 , and passes through the lens barrel of the first lens part 11 and the third lens part 13 The side wall channel reserved at the end, the extension bracket of the carrier body 2221 extends into the accommodation space, and is fixed to the second lens part 12 through the bearing part 222221 on the extension bracket 2222, wherein the first lens part 11 and the side wall channel reserved on the side wall of the barrel end of the third lens part 13, which is used to avoid the extension part 22222 so that it can extend into the accommodation space. The side wall channel also has a certain height. The height is mainly used to reserve a distance for the carrier body 2221 to move along the optical axis direction, so that the second lens part 12 can adjust its position within a limited space.

In a specific embodiment, the height of the side wall channel exceeds 520um to provide sufficient movement stroke of the focus carrier 221 and the second lens part 12 . In the specific embodiments involved in this application, when the number of first lens groups in the first lens part 11 is greater than 3 when the optical design of the large image plane is applied (the condition of image plane + focal length), the method of this application is adopted. The designed focusing stroke (or movable stroke) of the focusing part 22 or the second lens part 12 is ≤360um. Under similar specifications, using an integrated lens design, the required focusing stroke is ≥370um. This application can obtain clear imaging by only driving part of the lens or lens group of the optical lens 10 to move, and also reduces the requirements for the driving force of the focusing part 22. While simplifying the structural design of the focusing part 22, it also utilizes the extension bracket 2222 The second lens part 12 is fixed in the accommodation space formed by the first lens part 11 and the third lens part 13 , so that the second lens part 12 is disposed above the third lens part 13 and above the driving motor 20 , thereby achieving a low shoulder height and miniaturization of the overall drive motor 20 structure. At the same time, the first lens part 11 fixed above the third lens part 13, the second lens part 12 fixed on the extension bracket, and the third lens part 13 forms a complete optical system. Through the reasonable design of the extension bracket and lens barrel, the optical performance of the lens can be reasonably optimized and the risk of stray light can be reduced.

In a specific embodiment, the focusing part 22 may also include a position sensing element. The position sensing element may be disposed on the side of the carrier body 2221 and is mainly used to sense the position of the focusing carrier 221. And its position information is fed back to the control center. The control center adjusts the current in the focus coil 222 in real time based on the information fed back by the position sensing element, including the size and direction of the current, to quickly adjust the focus carrier 221 during imaging. In order to obtain a clearer image, the specific shape and position of the position sensing element can be set according to the specific requirements of the drive motor 20, and will not be described again here.

In some embodiments, as shown in FIGS. 3 to 10 , the drive motor 20 further includes an anti-shake part 23 , and the anti-shake part 23 It is mainly used to drive the optical lens to move in the direction perpendicular to the optical axis, that is, in the X/Y direction, to correct the shake of the optical lens. The focus part 22 is accommodated inside the anti-shake part 23, specifically the focus carrier 221 The focus carrier 221 is accommodated inside the anti-shake carrier 231. The focus carrier 221 is connected to the anti-shake carrier 231 through the holding part 25. Furthermore, through the centering holding function of the holding part 25, the second part fixed to the focus carrier 221 is The lens unit 121 keeps the optical axis aligned with the first lens unit 111 and the third lens unit 131 . The holding part 25 is an elastic component. In a specific embodiment, the holding part 25 is a spring piece structure, one end of which is connected to the focusing carrier 221 and the other end is connected to the anti-shake carrier 231. Through the The holding part 25 functions to suspend the focus carrier 221 inside the anti-shake carrier 231. The holding part 25 includes an upper elastic piece 251 and a lower elastic piece 252. The upper elastic piece 251 is disposed on the anti-shake carrier 231. The upper end surface is connected to the upper end surface of the focusing carrier 221. The lower elastic piece 252 is disposed on the lower end surface of the anti-shake carrier 231 and is connected to the lower end surface of the focusing carrier 221. The upper elastic piece 251 and the lower elastic piece 252 serve as retainers. The focusing carrier 221 is kept inside the anti-shake carrier 213, and the elastic piece can also be used to conduct the circuit between the focusing part 22 and the anti-shake part 23 to ensure a stable circuit connection between the two components. At the same time, when the After the focusing part 22 drives the second lens part 12 to adjust its position in the optical axis direction under the action of the driving force, and after the driving force disappears, due to the elastic restoring force of the upper elastic piece 251 and the lower elastic piece 252 themselves, the focusing part 22 Drive the second optical lens part to return to the initial position. In other optional embodiments, the holding member 25 can also be made of other materials, such as memory alloy metal materials, which can not only conduct the line between the focusing part 22 and the anti-shake part 23, but also provide The focusing part 22 provides a restoring force, so that the focusing part 22 drives the second lens part 12 to return to the position before adjustment. In another specific embodiment, the holding part 25 may be a ball and magnetic yoke structure, that is, the focusing carrier 221 and the anti-shake carrier 231 are in contact with each other through a ball structure, and the ball is restricted by a magnetic yoke or other structures. In the internal space of the ball groove formed by the focus carrier 221 and the anti-shake carrier 231, the reset is achieved through the mutual attraction of the yoke and the magnet.

This application provides a specific structure of the anti-shake part 23. The anti-shake part 23 includes an anti-shake carrier 231, an anti-shake coil 232, a magnet 223, an anti-shake controller 234, a position sensor 235 and a fastener 236. The anti-shake carrier 231 has an accommodating space inside for accommodating the focus carrier 221 provided with the second lens part 12 therein. The magnet 223 is arranged on the side of the anti-shake carrier 231 and is arranged around the side of the anti-shake carrier. The anti-shake carrier 231 is provided with a mounting position for the magnet 223. At least one magnet mounting position 2312 is integrally formed on the anti-shake carrier 231. side wall. The anti-shake coil 232 is disposed on the lower end surface of the magnet 223. The upper surface of the anti-shake coil 232 is parallel to the lower surface of the magnet 223. The position sensor 235 is disposed to sense the position of the anti-shake portion 23. position, and feedback the position information of the anti-shake part 23 to the anti-shake controller 234, the controller 234 is provided in the anti-shake part 23, and is mainly used to control the moving distance of the anti-shake part 23 according to the information fed back by the position sensor 235, so as to correct the shake during the shooting process and obtain a clear image. Among them, in the specific embodiment of the present application, the position sensor 235 includes an X direction sensor 2351 and a Y direction sensor 2352. The position sensor 235 can be disposed in the middle of the anti-shake coil 232. It can also be set at other positions, as long as the position of the anti-shake portion 23 in the horizontal direction can be detected. There is no corresponding restriction on its specific setting position. The fastener 236 is set On the outer side of the anti-shake carrier 231 , it is mainly used to fix the magnet 223 on the anti-shake carrier 231 . In this solution, in order to reduce the weight of the anti-shake part 23 and reduce the requirements for the driving force of the anti-shake part 23 , the anti-shake carrier 231 has an installation position reserved for the magnet 223 , and the anti-shake carrier 231 A portion for installing the magnet 223 is reserved, and the magnet 223 is later fixed on the anti-shake carrier 231 using a fixing method such as bonding. In another embodiment, the fastener 236 can be an injection molded part, that is, during the injection molding process of the anti-shake carrier 231, the magnet 223 is directly integrally formed with the anti-shake carrier 231, and the fastener 236 can be an injection molded part. 236 is configured as an injection molded part, which can simplify the process of fixing the magnet 223 on the anti-shake carrier 231 and reduce the cost in the manufacturing process.

In a specific embodiment, the focusing part 22 and the anti-shake part 23 of the driving motor 20 adopt a common magnet structure, that is, the magnet 223 of the focusing part 22 and the magnet 223 of the anti-shake part 23 are the same set of magnets. 223 is provided on the anti-shake carrier 231 of the anti-shake part 23 .

Specifically, the anti-shake part 23 provided in this application can drive the optical lens 10 to adjust its position in the X/Y direction to achieve shake correction during the shooting process. In the anti-shake part 23, the anti-shake part 23 The carrier 231 has an anti-collision platform 2311, a magnet mounting position 2312, a limiting body 2313, a first ball groove 2314 and a Hall position sensing position 2315. Specifically, the anti-collision platform 2311 is provided on the anti-shake carrier 231 surface, the anti-collision platform 2311 can be at least one small bump extending upward from the four corners of the anti-shake carrier 231, and is mainly used to prevent the focusing part 22 from excessive movement when falling or colliding and hitting the motor housing. . At least two limiting bodies 2313 are disposed on the inner side of the anti-shake carrier 231 . The limiting bodies 2313 extend from the inner side of the anti-shake carrier 231 and have a certain width. The third lens portion 13 can be fixed in the limiting position. In the body 2313, the third lens part 13 and the anti-shake carrier 231 are fixedly arranged. When the anti-shake carrier 231 moves along the X/Y direction under the action of the driving force, the third lens part 13 can be driven to move in the X direction synchronously. /Y direction, since the anti-shake part 23 drives the optical lens to move in the X/Y direction relative to the drive motor base 26, in order to reduce the friction between the drive motor base 26 and the anti-shake carrier 231, A corresponding support part 27 is provided between the two, and the support part 27 is mainly used to attach the anti-shake The carrier 231 is supported on the upper surface of the base 26 to reduce the friction force of relative movement between the two. In a specific embodiment, the support part 27 may be a ball 271 , and the number of the ball 271 may be multiple. The ball 271 is disposed between the base 26 and the anti-shake carrier 231 . The lower part of the anti-shake carrier 231 A first ball groove 2314 is provided on the surface, and a corresponding second ball groove 264 is provided on the corresponding base 26. A receiving space for the ball 271 is formed between the first ball groove 2314 and the second ball groove. The ball 271 is Limited to the track formed by the first ball groove 2314 and the second ball groove 264, under the action of the driving force, the anti-shake carrier 231 moves along the pre-designed ball groove relative to the base 26, thereby realizing the optical lens. Position adjustment in X/Y direction.

Specifically, as shown in Figure 10, the anti-shake part 23 needs to drive each lens part of the split optical lens to move synchronously, and the corresponding anti-shake carrier 231 is provided with a limiting body 2313. The number of the limiting bodies 2313 can be as many as are arranged on the inner side of the anti-shake carrier 231, and the number of the limiting bodies 2313 is at least three. In a specific embodiment, the number of the limiting bodies is four. The limiting body 2313 includes a horizontal part 23131 and a vertical part 23132. The horizontal part 23131 extends horizontally for a certain distance along the inner side of the anti-shake carrier. distance, one end of the vertical part 23132 is connected to the horizontal part 23131 and extends upward along the optical axis direction. There are escape grooves 2224 on the inner side of the focus carrier body 2221 close to the second lens part 12. The escape grooves are provided at the four corners of the focus carrier body 2221. On the one hand, they can be used to prevent excessive movement of the focus carrier 221. On the other hand, the escape grooves 2224 can be used to prevent excessive movement of the focus carrier 221. On the one hand, the installation space of the third lens part 13 can also be reserved. In this solution, the escape grooves 2224 on the focus carrier 221 are provided at the four corners of the anti-shake carrier 231. The escape grooves 2224 accommodate at least part of the third lens part 13. Lens mounting section. An accommodating space is formed between the anti-shake carrier 231 and the horizontal part 23131 and the vertical part 23132. The avoidance groove 2224 provided on the focus carrier 221 corresponds to the accommodating space, so that the focus carrier 221 is partially limited. Inside the position body 2313, when the focus carrier 221 is assembled and moved along the direction of the optical axis, it assists in ensuring the collimation of its focus. The third lens part 13 is fixed to the limiting body 2313 provided on the anti-shake carrier 221. In some optional embodiments, the third lens part 13 is supported by the vertical part 23132 of the limiting body 2313. Furthermore, the outer surface of the limiting body 2313 close to the optical axis of the lens is fixed to the third lens part 13 , so that the third lens part 13 is fixedly connected to the anti-shake part 23 . In some optional embodiments, a plurality of magnets 223 are disposed on the side of the anti-shake carrier 231 , and the anti-shake coil 232 is disposed on the base 26 and located below the magnet 223 . The magnet 223 and the anti-shake coil Driving force is generated between 232. When the anti-shake part 23 moves under the action of the driving force, it will drive the first lens part 11, the second lens part 12 and the third lens part 13 to move synchronously to realize the entire optical lens. Position adjustment in X/Y direction.

In this application, the drive motor 20 also includes a base 26. As shown in FIG. 11, the base 26 has a light hole 261. The center of the light hole 261 is consistent with the optical axis of the optical lens 10. The base 26 It also includes a position sensor installation position 262, a controller installation position 263, a second ball groove 264 and an anti-shake coil installation position 265. The anti-shake coil installation position 265 is located on the upper end surface of the base 26, and the anti-shake coil 232 passes through The reserved installation position of the anti-shake coil 265 is connected to the base 26 . The position sensor installation position 262 is set on the base 26 . The position sensor installation position 262 is set lower than the upper surface of the base 26 The groove structure is used to accommodate the position sensor 235 inside the groove. The controller mounting position 263 is set on the base 26, and the controller mounting position 263 is set lower than the base 26. The groove on the surface is to accommodate the anti-shake controller 234 of the anti-shake part 23 inside. The structural design of the groove is to accommodate the position sensor 235 and the anti-shake controller 234 of the anti-shake part 23. Inside the base 26, the space of the base 26 can be fully utilized to reduce the height of the overall drive motor 20. There is no corresponding restriction on the position of the controller installation position 263 on the base 26, which is consistent with the position sensor installation position. 262 does not interfere with each other. The upper surface of the base 26 is provided with a second ball groove 264. The second ball groove 264 corresponds to the first ball groove 2314 provided on the lower surface of the anti-shake carrier 231. , the first ball groove 231 and the second ball groove 2314 form a restricted space for the ball 271 to limit the ball 271 within the space formed by it. The shape of the ball groove can be hemispherical or bowl-shaped. In one embodiment, the shape of the ball groove may be V-shaped. The specific shape of the ball track is not limited accordingly. The ball 271 is limited to the ball formed by the first ball groove 2314 and the second ball groove 264. in the groove to form a supporting effect on the anti-shake carrier 231. Under the action of the driving force, the anti-shake carrier 231 can be positioned in the X/Y direction relative to the base 26. Due to the support of the ball 271 The friction force of relative movement between the anti-shake carrier 231 and the base 26 can be reduced, and the requirement for the anti-shake driving force can be reduced.

In a specific embodiment, a conductive portion 24 of the drive motor 20 is provided. As shown in FIGS. 7 to 8 , the conductive portion 24 can be a circuit flexible board 241 , and the circuit flexible board 241 itself can be Any bending is performed. In this application, the circuit flexible board 241 is provided on the side wall of the anti-shake carrier 231 and includes a communication portion 2411, a focusing portion soft board 2412, and an anti-shake portion conducting soft board 2413. The focus part soft plate 2412 is disposed on the top or bottom end surface of the anti-shake carrier 231 . The plane where the focus part soft plate 2412 is located is the first plane. One end of the focus part soft plate 2412 is in contact with the focus part 22 At least one of the upper elastic piece 251 or the lower elastic piece 252 of the focus carrier 221 is electrically connected. Furthermore, the elastic piece and the focusing part soft plate 2412 can be electrically connected through the terminals of the focus carrier 221 . The other end of the focusing part soft plate 2412 is connected to the connecting part 2411. In order to reasonably utilize the internal space of the module, the connecting part 2411 can be a bent structure, that is, one end of the bent structure is connected to the focusing part. Soft board 2412 remains connected, and the other bent end is connected to the conductive soft plate 2413 of the anti-shake part. The plane where the anti-shake part soft plate 2413 is located is the second plane. In a specific embodiment, the communication portion 2411 may be bent at a right angle to connect the focusing part soft plate 2412 and the anti-shake part soft plate 2413 located on different sides of the anti-shake carrier 231 . Specifically, the planes where the focus part soft plate 2412 and the anti-shake part soft plate 2413 are located are perpendicular to each other, that is, the focus part soft plate 2412 is located on the top or bottom end surface of the anti-shake carrier 231, and the anti-shake part soft plate 2413 is located on the top or bottom end surface of the anti-shake carrier 231. On the side wall of the anti-shake carrier 231, the first plane and the second plane are substantially perpendicular. The focusing part soft plate 2413 extends on the second plane, extends to the base 26 and is connected to the base 26, thereby ensuring that the drive motor 20The internal circuit is conductive. The soft plate 2413 of the anti-shake part is electrically connected to the reserved terminals on the base 26 , thereby ensuring electrical continuity within the drive motor 20 . In one embodiment, the anti-shake portion soft plate 2413 can extend along multiple side walls of the anti-shake carrier 231 , and at least two side walls are perpendicular to each other. Because the soft board itself has a certain degree of flexibility, while connecting the circuits of the focusing part 22 and the anti-shake part 23 with external circuits, it can also reduce the relative friction between the focusing part 22 and the anti-shake part 23 . Resistance to movement. The focusing part soft plate 2412, the connecting part 2411 and the anti-shake part soft plate 2413 extend on multiple side walls or end faces, leaving a certain bending allowance or movable gap to ensure that the anti-shake carrier 231 is relative to the base 26 During movement, the movement stroke is provided to reduce the reaction force when the motor is reset. In another embodiment, the conductive portion 24 can also be a spring piece structure, and the spring piece can also function as a conductive line, and at the same time realize the elastic reset of the spring piece itself.

In a specific embodiment, a conductive portion 24 of the drive motor 20 is provided. As shown in FIGS. 7 to 8 , the conductive portion 24 can be a circuit flexible board 241 , and the circuit flexible board 241 itself can be Any bending is performed. In this application, the circuit flexible board 241 is provided on at least two sides of the anti-shake carrier 231, and includes at least one end surface and side walls. The end surfaces refer to the top and bottom end surfaces of the anti-shake carrier. , the side walls refer to the surrounding side walls of the anti-shake carrier, including the communication part 2411, the focusing part soft plate 2412, and the anti-shake part conduction soft plate 2413. The focus part soft plate 2412 is disposed on the top or bottom end surface of the anti-shake carrier 231 . The plane where the focus part soft plate 2412 is located is the first plane. One end of the focus part soft plate 2412 is in contact with the focus part 22 At least one of the upper elastic piece 251 or the lower elastic piece 252 of the focus carrier 221 is electrically connected. Furthermore, the elastic piece and the focusing part soft plate 2412 can be electrically connected through the terminals of the focus carrier 221 . The other end of the focusing part soft plate 2412 is connected to the connecting part 2411. In order to reasonably utilize the internal space of the module, the connecting part 2411 can be a bent structure, that is, one end of the bent structure is connected to the focusing part. The soft board 2412 remains connected, and the other bent end is connected to the conductive soft board 2413 of the anti-shake part. The plane where the anti-shake part soft board 2413 is located is the second plane. In a specific embodiment, the communication portion 2411 may be bent at a right angle to connect the focusing part soft plate 2412 and the anti-shake part soft plate 2413 located on different sides of the anti-shake carrier 231 . Specifically, the The planes where the focus part soft plate 2412 and the anti-shake part soft plate 2413 are located are perpendicular to each other, that is, the focus part soft plate 2412 is located on the top or bottom end surface of the anti-shake carrier 231 , and the anti-shake part soft plate 2413 is located on the anti-shake carrier 231 The side walls of the first plane and the second plane are substantially perpendicular. The focusing part soft plate 2413 extends on the second plane, extends to the base 26 and is connected to the base 26 to ensure the circuit inside the drive motor 20 conduction. The soft plate 2413 of the anti-shake part is electrically connected to the reserved terminals on the base 26 , thereby ensuring electrical continuity within the drive motor 20 . In one embodiment, the anti-shake portion soft plate 2413 can extend along multiple side walls of the anti-shake carrier 231 , and at least two side walls are perpendicular to each other. Because the soft board itself has a certain degree of flexibility, while connecting the circuits of the focusing part 22 and the anti-shake part 23 with external circuits, it can also reduce the relative friction between the focusing part 22 and the anti-shake part 23 . Resistance to movement. The focusing part soft plate 2412, the connecting part 2411 and the anti-shake part soft plate 2413 extend on multiple side walls or end faces, leaving a certain bending allowance or movable gap to ensure that the anti-shake carrier 231 is relative to the base 26 During movement, the movement stroke is provided to reduce the reaction force when the motor is reset. In another embodiment, the conductive portion 24 can also be a spring piece structure, and the spring piece can also function as a conductive line, and at the same time realize the elastic reset of the spring piece itself.

In this application, as shown in FIG. 9 , the focus carrier 221 is accommodated inside the anti-shake carrier 231 . In order to further protect the components of the drive motor 20 , the optical lens drive assembly 1 also includes a protective shell 21 . The housing 21 has a housing light hole 211 and a housing receiving portion 212. The housing light hole 211 is mainly used to accommodate the optical lens 10, so that the light entrance hole of the optical lens 10 and the housing light hole 211 are The shape is consistent, the diameter of the housing light hole 211 is greater than or equal to the diameter of the optical lens 10 entrance hole, the center of the housing light hole 211 is consistent with the optical axis of the optical lens 10, so that the optical lens 10 receives more In order to absorb more external light, the internal space formed by the motor housing accommodating part 212 includes an optical lens accommodating part 2121 and a drive motor accommodating part 2122, which can accommodate the driving motor 20 and the components of the optical lens 10 inside it. The housing accommodating portion 212 is fastened to the base 26, and the space formed by the housing accommodating portion 212 and the base 26 accommodates the driving motor 20 and the optical lens 10 inside this space to provide corresponding protection for the internal components. The driving motor The bottom surface of the accommodating portion 2122 is fixed on the side of the base 26 to form a covering space, and the components of the driving motor 20 are covered in the formed covering space to form a protective effect on the internal components. In a specific In the embodiment, the lens accommodating part 2121 is a hollow cylindrical shape, which is used to accommodate the optical lens 10 and part of the structure of the main body of the protruding drive motor 20 inside, in order to reserve an movable space for the position adjustment of the optical lens 10. The diameter of the lens accommodating part 2121 is larger than the diameter of the optical lens 10 accommodated inside. The specific reserved gap size depends on the adjustable row of the optical lens 10 in a plane perpendicular to the optical axis. The focusing part 22 and the anti-shake part 23 of the driving motor are placed in the driving motor accommodating part 2122. The main body shape of the driving motor accommodating part 2122 is a hollow rectangular parallelepiped. The space formed between the rectangular parallelepiped and the base 26 The driving motor accommodation part 2122 is provided around the driving motor.

Specifically, as shown in FIG. 9 , the optical lens accommodating part 2121 and the driving motor accommodating part 2122 are connected through the upper surface of the driving motor accommodating part 2122 , that is, the optical lens accommodating part 2121 has an extended horizontal surface at one end thereof, extending out. The horizontal plane is bonded and fixed with the upper surface of the driving motor accommodating part 2122 to form the housing accommodating part 212. In another specific embodiment, the optical lens accommodating part 2121 and the driving motor accommodating part 2122 can be integrally formed. , during the injection molding process, the shapes of the optical lens accommodating part 2121 and the driving motor accommodating part 2122 are directly molded in the mold, and the two are integrally molded through the injection molding process, which can simplify the process. At the same time, during the assembly process, The assembly steps can be simplified. The material of the protective case can be made of metal, such as iron or alloy. The material needs to have a certain hardness to better protect the internal components. Specifically, the first lens The side where the lens portion 11 and the third lens portion 13 are fixed has at least one side wall channel. The optical lens receiving portion 2121 is arranged around the side wall channel. The optical lens receiving portion 2121 surrounds the first lens portion 11 and the second lens. At least a part of the outer periphery of the portion 12 is provided.

In a specific embodiment, in order to facilitate the movement of the first lens part 11, the second lens part 12 and the third lens part 13, a first lens part 11 is formed between the upper surface of the first lens part 11 and the lens receiving part 2121. A second gap is formed between the side of the first lens portion 11 and the lens receiving portion 2121 to facilitate the movement of the optical lens 10; the second gap is mainly used to allow the optical lens 10 to move along the horizontal direction. distance, wherein the distance of the second gap is greater than the distance of the first gap, the two gaps are on different planes, and both are arranged around different directions of the first lens part 11; the anti-shake part 23 of the drive motor 20 The side and the motor receiving part 2122 form a third gap. The third gap is mainly used to reserve a moving gap for the anti-shake part 23 to ensure the normal adjustment of the position of the optical lens 10. This way of setting the housing , which can increase the size of the photosensitive chip while ensuring the low shoulder height of the overall drive motor, which is conducive to miniaturization of the overall structure.

According to a second aspect of the present invention, a camera module includes:

The above optical lens 10 and drive motor 20;

A photosensitive component, the base is disposed between the photosensitive component and the lens component, and the photosensitive component is capable of photosensitive imaging.

The camera module can also be a chip anti-shake camera module. The base 26 is further provided with bottom corner bumps. The bottom corner bumps It is arranged at the four corners of the lower surface of the base 26 and is integrally formed with the base 26. There are sensing magnet mounting holes in the bottom corner bumps, and corresponding sensing elements are embedded in the sensing magnet mounting holes for sensing. Detect the position of the photosensitive chip and feed back the position information of the photosensitive chip to the control center, so that the motor and the photosensitive chip can cooperate with each other to quickly adjust the positions of the two components to improve the imaging efficiency of the camera module. At the same time, the photosensitive chip and the optical lens can cooperate with each other to achieve anti-shake of a larger stroke, solving the problem of increased driving force requirements due to the increase in the size of the photosensitive chip and the increase in the quality of the optical lens, while ensuring the accuracy of the movement of the motor-driven optical lens. At the same time, it also solves the problem of the movement of the photosensitive chip and the optical lens in cooperation with each other.

To solve the problem of increased driving force requirements due to the increase in chip size, the optical lens driving assembly 1 provided by this application uses a split optical lens to divide the optical lens into a first lens part, a second lens part and a third lens part. part, the focusing part of the driving motor drives the second lens part to move along the direction of the optical axis in the accommodation space formed by the first lens part and the third lens part, and the anti-shake part of the driving motor drives the entire optical lens to move along the optical axis. Moving in the direction perpendicular to the optical axis, this arrangement creates a direct linkage between the motor and the lens, which can effectively solve the problem of increasing driving force requirements due to the increase in the size of the photosensitive chip, and can also achieve miniaturization of the overall structure. .

The basic principles, main features and advantages of the present invention are described above. Those skilled in the industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and descriptions is only the principle of the present invention. The present invention may also have various modifications without departing from the spirit and scope of the present invention. changes and improvements that fall within the scope of the claimed invention. The scope of protection required for the present invention is defined by the appended claims and their equivalents.

Claims (31)

1. An optical lens driving assembly, characterized by including:

   Optical lens, the optical lens is a split optical lens, the split optical lens has an optical axis, and the direction along the optical axis is a first lens part, a second lens part and a third lens part, and the third lens part A lens part is disposed above the third lens part, an accommodating space is formed between the first lens and the third lens part, and the second lens part is disposed in the accommodating space;

   A drive motor, the drive motor is used to drive the optical lens to adjust its position; and

   A housing, the housing includes an optical lens receiving part and a driving motor receiving part, the side surfaces where the first lens part and the third lens part are fixed have at least one side wall channel, the optical lens receiving part surrounds the A side wall channel is provided, and the drive motor receiving portion is provided around the drive motor.
2. The optical lens driving assembly according to claim 1, wherein the lower surface of the optical lens accommodating part has an extending plane, and the extending plane is bonded and fixed with the upper surface of the driving motor accommodating part, and the The space formed by the lens accommodating part and the driving motor accommodating part accommodates the optical lens part in its inner space.
3. The optical lens driving assembly according to claim 2, wherein the upper surface of the optical lens accommodating portion has a light hole, and the diameter of the light hole is larger than the light aperture of the optical lens.
4. The optical lens driving assembly according to any one of claims 2 to 3, wherein the optical lens receiving portion surrounds at least a portion of the outer periphery of the first lens portion and the second lens portion.
5. The optical lens driving assembly according to claim 4, wherein an upper surface of the third lens portion is lower than an upper surface of the drive motor accommodating portion.
6. The optical lens driving assembly according to claim 5, wherein there is a first gap between the optical lens receiving portion of the housing and the upper surface of the first lens portion to facilitate adjustment of the position of the optical lens.
7. The optical lens driving assembly according to claim 5, characterized in that there is a second gap between the optical lens receiving part of the housing and the side surface of the first lens part, and the distance of the second gap is greater than the distance of the first lens part. A gap distance.
8. The optical lens driving assembly according to claim 5, wherein the drive motor includes an anti-shake carrier, and the side of the anti-shake carrier and the side of the drive motor accommodating portion form a third gap, and the third gap It is located at the end of the drive motor to reserve a movement gap for the optical lens on the horizontal plane.
9. The optical lens driving assembly according to any one of claims 6 to 8, wherein the second lens part is It is disposed in the accommodation space and is movable along the direction of the optical axis.
10. The optical lens driving assembly according to claim 9, wherein the drive motor includes a base, and the bottom surface of the drive motor accommodating part is fixed on the side of the base to form a covering space, and the The components of the drive motor are enclosed within the space they create.
11. An optical lens driving assembly, characterized by including:

    Optical lens. The optical lens has an optical axis. The optical lens is a split optical lens. Along the direction of the optical axis, there are a first lens part, a second lens part and a third lens part. The first lens part is Fixed above the third lens part, the first lens part and the third lens part form an accommodating space, the side of the accommodating space has at least one side wall channel, the side wall channel and The accommodating spaces are connected, and the second lens part is disposed in the accommodating spaces;

    Focus carrier, the focus carrier has an extension bracket, the extension bracket extends into the accommodation space through the side wall channel and is fixed to the second lens part;

    An anti-shake carrier, the focus carrier is accommodated in the anti-shake carrier, and the anti-shake carrier has a third lens mounting part;

    Wherein, the third lens part is fixed to the third lens mounting part, and the second lens part is arranged above the third lens part through an extension bracket on the focus carrier, so that the first lens The second lens portion and the third lens portion can image.
12. The optical lens driving assembly according to claim 11, characterized in that the second lens part moves along the direction of the optical axis in the accommodation space to achieve focusing, wherein the focusing stroke of the second lens part No more than 360um.
13. The optical lens driving assembly according to claim 12, wherein the height of the side wall channel exceeds 520um to provide sufficient movement stroke of the focus carrier and the second lens part.
14. The optical lens driving assembly according to any one of claims 11 to 13, wherein the number of lenses of the optical lens is greater than seven, wherein the number of first lens groups in the first lens part is at least three. .
15. The optical lens driving assembly according to claim 12, wherein the second lens part includes a second lens barrel and at least a second lens group, and the light incident on the second lens barrel of the second lens part The aperture is larger than the light exit aperture
16. The optical lens driving assembly according to claim 15, wherein the inner bottom surface of the second lens barrel serves as the supporting surface of the second lens group.
17. The optical lens driving assembly according to claim 15, wherein the extension bracket of the focus carrier It includes an extension part and a bearing part. The bearing part is fixed to the extension part. The bearing part may be an annular structure. The extension part extends into the accommodation formed by the first lens part and the third lens part. In the space, the second lens part is fixed on the upper end surface of the carrying part.
18. The optical lens driving assembly according to claim 17, wherein a through hole is formed on the carrying part, and the inner diameter of the through hole is larger than the diameter of the light outlet of the second lens part.
19. The optical lens driving assembly according to claim 17, wherein the inner diameter of the annular structure of the carrying portion is larger than the diameter of the light entrance hole of the third lens portion.
20. The optical lens driving assembly according to claim 19, wherein the extension bracket extends upward and carries the second lens part, so that the second lens part is disposed above the third lens part and the driving above the motor.
21. An optical lens driving assembly, characterized by including:

    Optical lens, the optical lens has an optical axis, the optical lens is a split optical lens, and the direction along the optical axis is a first lens part, a second lens part and a third lens part in sequence, the first lens An accommodating space is formed between the lens part and the third lens part, and the second lens part is disposed in the accommodating space;

    And a drive motor, the drive motor is used to drive the optical lens for position adjustment, the drive motor includes:

    A focusing part, the focusing part is fixed to the second lens part, and drives the second lens part to move along the direction of the optical axis for focusing;

    An anti-shake portion, the anti-shake portion is configured to accommodate the focusing portion inside the anti-shake portion, the anti-shake portion has a third lens mounting portion, the third lens portion is fixed to the third lens mounting portion The anti-shake unit drives the optical lens to move in a direction perpendicular to the optical axis for anti-shake;

    A support part used to carry the anti-shake part;

    A base, located on the lower side of the anti-shake part, with a support part disposed between the base and the anti-shake part;

    Wherein, a holder is provided between the anti-shake part and the focusing part to hold the focusing part inside the anti-shake part.
22. The optical lens driving assembly according to claim 21, characterized in that there is at least one side wall channel between the first lens part and the third lens part, the focusing part includes a focusing carrier, and the focusing part The carrier includes an extension Bracket, the extension bracket extends into the accommodation space through the side wall channel, and the extension bracket is fixed to the second lens part.
23. The optical lens driving assembly according to claim 22, wherein the extension bracket of the focus carrier includes an extension part and a bearing part, the bearing part is fixed to the extension part, and the extension part extends into In the accommodation space formed by the first lens part and the third lens part, the second lens part is fixed to the upper end surface of the carrying part.
24. The optical lens driving assembly according to claim 23, wherein the number of the extension parts is three or more, the bearing part can be a ring structure, and the extension parts are evenly distributed and connected to the ring. The peripheral side of the shaped structure is fixed with the bearing part.
25. The optical lens driving assembly according to claim 22, characterized in that the holding part holds the focusing part inside the anti-shake part, and the focusing part is fixed to the focusing part through the centering holding effect of the holding part. The second lens part of the second lens part keeps the optical axis consistent with the first lens part and the third lens part.
26. The optical lens driving assembly according to claim 25, wherein the anti-shake part includes an anti-shake carrier, the anti-shake carrier extends from the inner side to form at least one limiting body, and the third lens part is fixed in the limiting body.
27. The optical lens driving assembly according to claim 26, wherein the limiting body is provided on the inner side of the anti-shake carrier, the limiting body extends from the inner side of the anti-shake carrier, and the limiting body The bit body includes a horizontal part and a vertical part, the horizontal part extends horizontally along the inner side of the anti-shake carrier, the vertical part is connected to the horizontal part and extends upward along the optical axis direction, wherein the horizontal part Have a certain width.
28. The optical lens driving assembly according to claim 27, wherein the lower surface of the focus carrier has an escape groove, and the escape groove is provided on the horizontal part of the limiting body.
29. The optical lens driving assembly according to claim 21, wherein the focusing part further includes a pair of focusing carriers, the anti-shake part further includes an anti-shake carrier, and the holder connects the anti-shake carrier and the focusing At least one end surface of the carrier keeps the focus carrier inside the anti-shake carrier.
30. The optical lens driving assembly according to claim 29, wherein the driving motor further includes a conductive part, and the conductive part connects the anti-shake part and the focusing part.
31. The optical lens driving assembly according to claim 30, wherein the conductive portion further includes a connecting portion, the connecting portion is a bent structure, and the connecting portion is provided at least on the anti-shake carrier. Both sides.