CN114253044B

CN114253044B - Driving device for camera module, camera module and terminal equipment

Info

Publication number: CN114253044B
Application number: CN202011006922.5A
Authority: CN
Inventors: 涂洪德; 阙嘉耀; 王启; 孙孝央
Original assignee: Ningbo Sunny Opotech Co Ltd
Current assignee: Ningbo Sunny Opotech Co Ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2023-07-28
Anticipated expiration: 2040-09-23
Also published as: CN114253044A

Abstract

The application provides a drive arrangement, module and terminal equipment of making a video recording for making a video recording module. Wherein the driving device comprises a first driving device and a second driving device, and comprises a base; a second driving device including a substrate; the elastic supporting part is arranged on the base plate and comprises a first horizontal end and a second horizontal end, wherein the first horizontal end is fixed on the base plate; the vertical bending end is connected with the first horizontal end; and the second horizontal end is connected with the other end of the vertical bending end and is used for suspending and supporting the base in the direction of the optical axis of the camera module. By arranging a group of elastic supports between the first driving device and the second driving device to replace the suspension wire structure, more reliable support is provided for relative movement between the first driving device and the second driving device, and the assembly complexity and the manufacturing cost are reduced.

Description

Driving device for camera module, camera module and terminal equipment

Technical Field

The application belongs to the field of camera modules, and particularly relates to a driving device for a camera module, a camera module and terminal equipment.

Background

In an electronic terminal such as a mobile phone, an imaging module is an indispensable part. In order to meet the high definition requirement of shooting, the shooting module is required to be capable of automatically focusing, and the driving mechanism drives the lens to longitudinally move so as to realize automatic focusing.

On the one hand, due to the development requirement of the light and thin mobile phones, the installation space of the camera module is reduced and thinned. Traditional VCM motor drive includes magnetite, coil etc. although can drive the lens subassembly and reach the target position in order to realize autofocus's function, but the structure is complicated to can increase the structure of module of making a video recording, make the whole size of module structure be difficult to reduce, make a video recording the holistic miniaturization of module difficult to realize. On the other hand, in order to meet the requirements of diversification and high definition imaging, large aperture, large image surface, etc. are introduced into the imaging module, the number of lenses in the lens is continuously increased, and the quality of the lens is increased. The conventional VCM motor driving has a tendency of insufficient driving force, and also has a problem of large power consumption and the like in the conventional method. SMA (shape memory alloy) materials are provided as another possible actuator to replace the existing VCM drivers due to their heat shrinking properties. The SMA actuator can meet the demand for miniaturization with respect to the VCM actuator.

In addition, in the actual photographing and shooting process, tiny shake will cause image blurring and unclear, especially when the mobile phone terminal shoots under the handheld condition, the image unclear caused by shake is more common. Therefore, an optical image stabilization system (OIS) is introduced into various high-end mobile phone terminals to solve the problem of image sticking caused by hand tremble. The OIS anti-shake principle is that a position detection device, such as a gyroscope, detects a position offset generated by shake, calculates displacement to be corrected according to the offset, and drives an optical anti-shake actuator to drive a corresponding direction and offset to a specified position, so as to compensate the corresponding position and angle, thereby overcoming the problem of image sticking caused by shake.

The existing optical anti-shake device consists of a plane moving shake-proof coil perpendicular to an optical axis, an anti-shake magnet and a suspension structure. For example, the optical anti-shake apparatus may include a lens section, a lens driving apparatus for auto-focusing and shake correction, and an image pickup section. The lens driving device is provided with an OIS movable part, an OIS fixed part, and a support member, wherein the OIS movable part is connected to the OIS fixed part via the support member, the support member is composed of 4 suspension wires, one end of each suspension wire is fixed to the OIS movable part, and the other end of each suspension wire is fixed to the OIS fixed part. The OIS movable portion is swingably supported by the suspension wire in the XY plane.

Disclosure of Invention

The application aims to provide a driving device for a camera module, which replaces a suspension wire structure by arranging a group of elastic supports between a first driving device and a second driving device, provides more reliable support for relative movement between the first driving device and the second driving device, and reduces assembly complexity and manufacturing cost.

According to a first aspect of the present application, there is provided a driving apparatus for a camera module, comprising:

a first driving device including a base;

a second driving device including a substrate;

a group of elastic supporting parts which are arranged on the base plate and comprise,

a first horizontal end fixed on the substrate;

the vertical bending end is connected with the first horizontal end;

and the second horizontal end is connected with the other end of the vertical bending end and is used for suspending and supporting the base in the direction of the optical axis of the camera module.

According to some embodiments of the application, the first horizontal end is connected to the base plate by a height adjustment block.

According to some embodiments of the application, the second horizontal end is higher than the first horizontal end in the optical axis direction of the camera module

According to some embodiments of the application, the base comprises a set of protrusions, the protrusions are arranged corresponding to the second horizontal ends, and the second horizontal ends support the base in a hanging mode through the protrusions.

According to some embodiments of the application, the first driving device is an SMA driving device; the second driving device is an OIS driving device.

According to some embodiments of the present application, the set of elastic supports comprises: four elastic supporting parts are arranged at four corners of the substrate.

According to some embodiments of the application, the elastic support comprises: a metal spring piece.

According to some embodiments of the present application, the vertical bending end includes:

a first elastic arm;

and the second elastic arm is obliquely and crosswise connected with the first elastic arm.

According to some embodiments of the application, the second resilient arm is connected to the first resilient arm by an L-shaped horizontal connection.

According to some embodiments of the application, the first or second resilient arm comprises: at least one U-shaped elastic arm.

According to some embodiments of the present application, the SMA actuation apparatus further comprises:

a lens carrier;

the first driver is arranged on the base, connected with the lens carrier and drives the lens carrier to move upwards along the optical axis direction of the camera module;

the second driver is arranged on the base, connected with the lens carrier and used for driving the lens carrier to move downwards along the optical axis direction of the camera shooting module.

According to some embodiments of the present application, the lens carrier comprises:

a carrier support;

the first bending block is arranged on the periphery of the carrier bracket;

and the second bending block is arranged on the periphery of the carrier bracket.

According to some embodiments of the application, the first driver comprises:

a first SMA drive wire;

and the first fixing device is connected with two ends of the first SMA driving wire.

According to some embodiments of the application, the second driver comprises:

a second SMA drive wire;

and the second fixing device is connected with two ends of the second SMA driving wire.

According to some embodiments of the present application, the first SMA drive wire cooperates with the first flexure block to drive upward movement of the lens carrier.

According to some embodiments of the present application, the second SMA drive wire cooperates with the second flexure block to drive the lens carrier to move downward.

According to some embodiments of the present application, the OIS driving apparatus further includes:

a set of magnetic bodies connected with the base;

the group of coils are arranged on the substrate and are opposite to the group of magnetic bodies, and the SMA driving device is driven to horizontally move in the direction perpendicular to the optical axis of the camera module by the magnetic force between the group of coils and the group of magnetic bodies.

According to a second aspect of the present application, there is provided a camera module, comprising:

a driving device as described above;

and the lens assembly is connected with the lens carrier.

According to a third aspect of the present application, there is provided a terminal device comprising an imaging module as described above.

According to the driving device for the camera module, the SMA driving device drives the lens assembly to move up and down along the optical axis direction, so that automatic focusing is achieved; the OIS driving device drives the lens component to horizontally move in a plane vertical to the optical axis so as to realize manual anti-shake; a group of elastic supports are arranged between the SMA driving device and the OIS driving device to replace a suspension wire structure, so that more reliable support is provided for relative movement between the SMA driving device and the OIS driving device, and assembly complexity and manufacturing cost are reduced.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application.

Fig. 1 shows a schematic diagram of a camera module structure.

Fig. 2 shows a structural diagram of a driving apparatus according to an exemplary embodiment of the present application.

Fig. 3 shows an exploded view of a driving device according to an exemplary embodiment of the present application.

Fig. 4 shows a schematic view of a resilient support structure according to an example embodiment of the present application.

Fig. 5 shows an exploded view of an SMA drive apparatus according to an example embodiment of the application.

Fig. 6 shows an OIS drive explosion diagram according to an example embodiment of the present application.

Fig. 7 shows a perspective view of an imaging module according to an example embodiment of the present application.

Fig. 8 shows an exploded view of a camera module according to an example embodiment of the present application.

Fig. 9 shows a schematic diagram of terminal device composition according to an example embodiment of the present application.

Detailed Description

Example embodiments are described more fully below with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the present application. One skilled in the relevant art will recognize, however, that the aspects of the application can be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

It will be understood that, although the terms first, second, etc. may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one element from another element. Thus, a first component discussed below could be termed a second component without departing from the teachings of the present application concept. As used herein, the term "and/or" includes any one of the associated listed items and all combinations of one or more.

Those skilled in the art will appreciate that the drawings are schematic representations of example embodiments and may not be to scale. The modules or flows in the figures are not necessarily required to practice the present application and therefore should not be taken to limit the scope of the present application.

The inventor found that although the suspension wire structure can support the lens assembly and the SMA driving device in the optical anti-shake device to realize shake correction, the suspension wire structure has the defects of high assembly difficulty, complex process, high loss and high cost in the assembly process. In addition, in terms of reliability, the reliability of the suspended wire structure is not high.

To above-mentioned technical problem, the application provides a drive arrangement for making a video recording module when realizing automatic focusing and shake correction, adopts elastic support structure to replace the suspension wire structure for the assembly process is simple, when improving the reliability, thereby realizes batch production reduce cost.

The technical solutions of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 shows a schematic diagram of a camera module structure.

In an electronic terminal such as a mobile phone, as shown in fig. 1, the camera module 2000 generally includes a circuit board 2500, a photosensitive element 2400 attached to the circuit board 2500, a photosensitive assembly support 2300, a lens assembly 2100, a lens carrier 1110, a driving device 1000, and a metal housing 2200. Wherein the photosensitive assembly support 2300 includes a base for supporting the color filter and the color filter attached to the base. The lens assembly 2100 includes an optical system composed of one or more lenses, and is disposed along an optical axis with the photosensitive chip 2400 such that the optical system focuses an image on the photosensitive chip 2400, thereby achieving imaging.

The lens assembly 2100 is disposed in an interior cavity of the lens carrier 1110. The driving device 1000 includes an auto-focus driving device and an optical anti-shake driving device. The auto-focus drive is connected to the lens carrier 1110 to drive the lens carrier and the lens to move up and down along the optical axis direction, thereby achieving auto-focus. The optical anti-shake driving device is arranged below the lens carrier and the automatic focusing driving device and is used for driving the lens carrier, the lens assembly and the automatic focusing driving device to move on a plane perpendicular to the optical axis, so that shake correction is realized.

According to a first aspect of the present application, a driving apparatus 1000 for an image capturing module is provided, as shown in fig. 2 and 3. The driving device 1000 includes: a first drive means 1100, a second drive means 1200 and a set of resilient supports 1300. According to an exemplary embodiment of the present application, the first driving device 1100 is an SMA driving device for driving the lens assembly to move up and down along the optical axis direction; the second driving device 1200 is an OIS driving device for driving the lens assembly to horizontally move in a plane perpendicular to the optical axis.

Referring to fig. 2 and 3, the SMA actuation apparatus 1100 comprises a lens carrier 1110, a first spring 1120, an upward SMA actuator 1130, a downward SMA actuator 1140, a second spring 1150, and a base 1160.OIS driving apparatus 1200 includes a substrate 1210, a set of coils 1220, and a set of magnetic bodies (not shown in fig. 3). A set of elastic support parts 1300 are arranged on the base plate 1210. According to an example embodiment of the present application, the set of elastic support parts 1300 may be four elastic support parts disposed at four corners of the substrate 1210.

As shown in fig. 3 and 4, the elastic support 1300 includes a first horizontal end 1310, a second horizontal end 1320, and a vertically bent end 1330. The first horizontal end 1310 is fixed to the base plate 1210. A vertically bent end 1330 is connected to the first horizontal end 1310 at one end and to the second horizontal end 1320 at the other end. The second horizontal end 1320 suspends and supports the base 1160 in the optical axis direction of the camera module. According to some embodiments of the present application, the first horizontal end 1310 may be structurally level different from the second horizontal end 1320, for example, the second horizontal end 1320 is higher than the first horizontal end 1310 in the optical axis direction of the camera module. According to other embodiments of the present application, the first horizontal end 1310 may also be connected to the base plate 1210 through the height adjusting block 1400 and fixed on the base plate 1210.

The second horizontal end 1320 is higher than the first horizontal end 1310 in the optical axis direction of the camera module and is connected to the base 1160 of the SMA driving apparatus, so as to provide suspended elastic support for the SMA driving apparatus. The first horizontal end 1310 is raised by the height adjusting block 1400, so that a gap exists between the lower surface of the second horizontal end 1320 and the substrate 1210 of the OIS driving device 1200, and the second horizontal end is suspended, so that a space is provided for the SMA driving device to move up and down. The upper surface of the second horizontal end 1320 contacts the bottom of the base 1160 of the SMA actuation apparatus 1100 to provide resilient support. According to other embodiments of the present application, the bottom of the base 1160 includes a set of protrusions 1161, which are disposed corresponding to the second horizontal ends 1320, and the second horizontal ends 1320 support the base in a suspended manner through the protrusions 1161. By providing the protrusions 1161 at the bottom of the base 1160, a gap between the first horizontal end 1310 and the base 1160 may be ensured, especially in case of providing a height adjustment block.

As shown in fig. 4, according to an example embodiment of the present application, the elastic support 1300 may be a metal spring piece, such as a leaf spring. According to other example embodiments of the present application, the vertically bent end 1330 may include a first resilient arm and a second resilient arm. The first elastic arm is obliquely and crosswise connected with the first elastic arm. For example, by an L-shaped horizontal connection 1340. The first resilient arm or the second resilient arm may comprise at least one U-shaped resilient arm.

Referring to fig. 3, in the exemplary embodiment of the present application, the number of U-shaped elastic arms is two, and the number thereof may be set as required, which is not limited in the present application. The vertical bending end 1330 increases the deformation strength of the supporting member by bending and connecting a plurality of times, thereby improving the reliability, and not only allowing the whole base 1160 to move on a plane relative to the substrate 1210, but also being difficult to cause the elastic supporting portion 1300 to twist and bend, thereby causing the whole base to turn over.

According to an exemplary embodiment of the present application, the connection manner of the height adjustment block 1400 and the base plate 1210, the first horizontal end 1310 and the height adjustment block 1400 may be one of adhesive, welding or mechanical connection, which is not limited thereto.

The SMA actuation apparatus 1100 comprises a lens carrier 1110, a first spring 1120, a first actuator 1130, a second actuator 1140, a second spring 1150, and a base 1160. Wherein the first driver 1130 and the second driver 1140 are connected to the lens carrier 1110, and the first driver 1130 drives the lens carrier 1110 to move upwards along the optical axis direction of the camera module; the second driver 1140 drives the lens carrier 1110 to move downward along the optical axis direction of the image capturing module.

According to an exemplary embodiment of the present application, the lens carrier 1110 includes a carrier body 1111 and a carrier cavity 1112, with the lens assembly being held in the carrier cavity 1112 by the carrier body 1111. The carrier body 1111 is further provided with a carrier inner wall 1113 having a screw structure for coupling with a lens assembly. The carrier inner wall 1113 is shaped to conform to the outer peripheral shape of the lens assembly.

The carrier body 1111 further comprises a carrier ring 1114 and a carrier holder 1115, wherein the carrier holder 1115 is integrally provided to the outer circumference of the carrier ring 1114. The first driver 1130 and the second driver 1140 provide upward and downward forces on the carrier ring 1114 through the carrier holder 1115 to drive the lens carrier 1110 upward or downward.

The carrier body 1111 further includes a first bending block 1116 and a second bending block 1117, which are disposed around the carrier holder 1115 and are configured to cooperate with the first driver 1130 and the second driver 1140, respectively, to drive the lens carrier 1110 to move up and down.

The lens carrier 1110 further comprises first limiting means 1118 for limiting the maximum distance the lens carrier 1110 is driven to move upwards. The stop 1118 may extend upwardly from the upper surface of the carrier holder 1115 and may be integrally formed with the carrier holder 1115.

The lens carrier 1110 further includes a spacer 1119 disposed around the carrier holder 1115 for spacing the lens carrier 1110 from the inner wall of the camera module housing. The spacer 1119 is integrally provided on the lens carrier 1110, and may integrally extend outward from a side of the carrier holder 1115 and protrude outward from the positions of the first actuator 1130 and the second actuator 1140, so as to limit the SMA wires of the first actuator 1130 and the second actuator 1140 from contacting the housing of the camera module.

The first actuator 1130 comprises a first SMA drive wire 1131 and a first fixture 1132, wherein both ends of the first SMA drive wire 1131 are disposed on the first fixture 1132, and the first actuator 1130 is secured to the base 1160 by the first fixture 1132. The first SMA actuation wire 1131 of the first actuator 1130 is disposed below the first bending block 1116, wherein the first SMA actuation wire 1131 of the first actuator 1130 is thermally actuated to contract and lift, thereby pushing the first bending block 1116 to move upwardly.

The second driver 1140 includes a second SMA driving wire 1141 and a second fixing device 1142, wherein two ends of the second SMA driving wire 1141 are disposed on the second fixing device 1142, and the second driver 1140 is fixed on the base 1160 by the second fixing device 1142. The second SMA actuation wire 1141 of the second actuator 1140 is disposed under the second bending block 1117, wherein the second SMA actuation wire 1141 contracts in a thermally driven manner to draw the second bending block 1117 downward.

The SMA wire is driven by heat by itself or by a heat source. That is, the SMA wire may be heated by self-heating or by other heat sources to shrink the length of the SMA wire, thereby driving movement of the movable component. Preferably, in the first preferred embodiment of the present invention, the thermal driving mode of the SMA wire is a self-electrically heating mode, and the magnitude of the SMA wire driving force is controlled by controlling the magnitude of the SMA wire current. In short, when the SMA wire current increases, the temperature at which the SMA wire is electrically heated increases, the SMA wire thermally contracts, and thus the driving force of the SMA wire increases; when the SMA wire current decreases, the temperature at which the SMA wire is electrically heated decreases or at ambient temperature the SMA wire decreases, and the SMA wire relaxes, so that the driving force of the SMA wire decreases.

According to an example embodiment of the present application, the height of the first fixture 1132 is greater than the height of the second fixture 1142. Wherein the first fixing device 1132 supports two ends of the first SMA actuation wire 1131, so that the first SMA actuation wire 1131 bypasses the first bending block 1116 to form a V-shaped traction structure. Accordingly, the first fixture 1142 supports both ends of the second SMA actuation wire 1141 to cause the first SMA actuation wire 1141 to bypass the second bending block 1117 to form an inverted V-shaped traction structure. Thus, the first driver 1130 and the second driver 1140 of the SMA actuation apparatus 1100 provide mutually opposite forces to the lens carrier 1110, which drives the lens assembly upward and downward by driving the lens carrier 1110.

The first elastic piece 1120 is disposed above the lens carrier 1110, and the second elastic piece 1150 is disposed below the lens carrier 1110 to support the lens carrier 1110. In a stationary unpowered state, the upper first spring 1120 and the second spring 1150 together support the lens carrier 1110, maintaining the lens in a centered position by the lens carrier 1110. When the lens carrier 1110 is driven upward or downward by the SMA driving apparatus 1100, the first elastic piece 1120 and the second elastic piece 1150 balance the supporting forces applied to the lens carrier 1110 in all directions, so that the driving forces applied to the lens carrier 1110 in all directions are the same, and the stability of the movement of the lens assembly during the driving process is maintained by the lens carrier 1110.

The first spring 1120 includes a first spring ring 1121 and a first extension 1222 extending outward from the first spring ring 1121. The first elastic ring 1121 is disposed on the carrier ring 1114 of the lens carrier 1110, and the size of the first elastic ring is adapted to the carrier ring 1114. According to some embodiments of the present application, the first elastic piece 1120 is a sheet-like elastic body with a hollowed structure, and can bear a certain acting force and return to its original shape under the action of elasticity. The first spring 1120 may be formed by mechanical stamping or etching.

In an initial state, the first spring 1120 is in a natural extended state, wherein the first spring ring 1121 and the first extension 1222 are at the same level. When the first elastic ring 1121 is moved upward by the lens carrier 1110, the intermediate connection portion of the first elastic ring 1121 and the first extension 1222 is elastically deformed. The first extension 1222 provides a downward elastic force to the lens carrier 1110.

The second spring 1150 further includes a second spring ring 1151 and a second support end 1152 extending outwardly from the second spring ring 1151. The second elastic piece 1150 is disposed on the base 1160. The second elastic ring 1151 is disposed below the carrier ring 1114 of the lens carrier 1110, and is sized to fit the carrier ring 1114, and the second elastic ring 1151 provides an upward supporting force to the lens carrier 1110. The second elastic piece 1150 according to the exemplary embodiment of the present application is a sheet-like elastic body with a hollowed-out structure, and may be manufactured by mechanical stamping or etching. According to an example embodiment of the present application, the first elastic piece 1120 and the second elastic piece 1150 may be elastic devices made of metal.

In the initial state, the second spring ring 1151 supports the lens carrier 1110 upwards under the supporting action of the base 1160, and the lens assembly is positioned at the middle position by the lens carrier 1110. When the second driver 1140 of the SMA driving apparatus 1100 drives the lens carrier 1110 to move downward, the lens carrier 1110 presses the second elastic ring 1151 downward, so that the second supporting end 1152 of the second elastic ring 1151 is elastically deformed. The second supporting end 1152 supports the stress balance of each portion of the lens carrier 1110 in the horizontal direction. The second elastic ring 1151 provides an upward elastic force to the lens carrier 1110 through the second elastic ring 1151, so as to support the lens carrier 1110 to move upward, and return to the middle position from the lower portion.

The base 1160 includes a base body 1161, a boss 1162, and a second stop 1163. Wherein the boss 1162 is disposed at a corner of the base body 1161 for positioning and mounting between the camera module housing and the base 1160. It will be appreciated that the boss 1162 protrudes upwardly from the plane of the base body 1161. The second stopper 1163 may be integrally extended upward from the upper surface of the base body 1161. The distance between the second limiting device 1163 and the lens carrier 1110 is the limiting distance of the downward movement of the lens assembly. When the lens carrier 1110 is moved downward by the second driver 1140, the lens carrier 1110 is moved downward by a distance contacting the second stopper 1163 that is the maximum mechanical stroke of the lens carrier 1110 downward.

In the camera module, OIS actuator 1200 is located below SMA actuator 1100. As shown in fig. 6, the OIS driving apparatus 1200 includes a substrate 1210, a set of coils 1220, and a set of magnetic bodies 1230. A set of magnets 1230 are attached to the base of the SMA actuation apparatus. The coil 1220 is disposed on the substrate 1210 and opposite to the magnetic body 1230. OIS driving apparatus 1200 further includes a position sensing element (not shown) disposed on substrate 1210 adjacent to the set of coils 1220. The position of the lens component of the camera module can be sensed by the position sensing element. According to the position information obtained by the sensing element, the SMA driving device is driven by the magnetic force between the set of coils 1220 and the set of magnetic bodies 1230 and drives the lens assembly to horizontally move in the direction perpendicular to the optical axis of the camera module, so as to realize shake correction.

According to some embodiments of the present application, the number of the set of magnetic bodies 1230 and the set of coils 1220 may be four, which are disposed at the four corners of the substrate 1210, respectively. The magnetic material may be a magnet, or the like. Together, the set of magnetic bodies 1230 and the set of coils 1220 comprise an OIS drive structure.

According to another aspect of the present application, there is provided an image capturing module 3000, as shown in fig. 7 and 8, including a lens assembly 2100, a driving device 1000, a lens mount 3100, and a housing 2200. Wherein the lens assembly 2100 is connected to the lens carrier 1110 of the driving apparatus 1000. The lens assembly 2100 and the driving device 1000 are disposed within the housing 2200. The lens mount 3100 is disposed below the housing 2200 and coupled to and supports the driving device 1000. The driving device 1000 drives the lens assembly 2100 to move up and down in the housing 2200 to achieve auto-focusing and to move horizontally to achieve shake correction.

The housing 2200 has a receiving space 2210 and a light entrance hole 2220, wherein the light entrance hole 2220 is formed at an upper portion of the housing 2200 to communicate with the receiving space 2210. The light enters the lens assembly 2100 through the light entrance hole 2220, so that the lens assembly 2100 receives the light incident from the outside.

The lens mount 3100 further comprises a circuit board 2500, a photosensitive element 2400 attached to the circuit board 2500, a photosensitive element support 2300, and a color filter 2600 disposed on the photosensitive element support 2300. The driving device 1000 drives the lens assembly 2100 to move up and down so that optical imaging of the lens assembly 2100 is focused on the photosensitive element 2400, so that the photosensitive element 2400 receives the light focused by the lens assembly 2100. The lens assembly 2100 includes at least a lens 2110, wherein the lens 2110 and the photosensitive element 2400 are disposed along an optical axis of the camera module 3000 such that an optical system composed of the lens 2110 focuses an image onto the photosensitive element 2400.

In an initial state, the driving apparatus 1000 holds the lens assembly 2100 in a neutral position, in which the lens assembly 2100 is held at a distance from the photosensitive element 2400 in the optical axis direction. When it is necessary to adjust the imaging position of the lens assembly 2100 for focusing, the driving device 1000 drives the lens assembly 2100 to move up and down in the optical axis direction to adjust the distance between the lens assembly 2100 and the photosensitive element 2400. When the shake adjustment is required, the driving device 1000 drives the lens assembly 2100 to horizontally move up and down in a plane perpendicular to the optical axis direction.

In addition, as shown in fig. 9, the present application further provides a terminal device 4000 including the camera module as described above.

Referring to fig. 9, the terminal apparatus 4000 may include: at least one processor 4001, at least one network interface 4004, a user interface 4003, a memory 4005, at least one communication bus 4002.

Wherein the communication bus 4002 is used to enable connection communications between these components.

The user interface 4003 may include a Display screen (Display), the Camera module 3000 (Camera), and the optional user interface 4003 may further include a standard wired interface and a standard wireless interface.

The network interface 4004 may optionally include standard wired interfaces, wireless interfaces (e.g., WI-FI interfaces), among others.

Wherein the processor 4001 may comprise one or more processing cores. The processor 4001 connects respective parts within the entire terminal apparatus 4000 using various interfaces and lines, performs various functions of the terminal apparatus 3000 and processes data by executing or executing instructions, programs, code sets, or instruction sets stored in the memory 4005, and calling data stored in the memory 4005. Alternatively, the processor 4001 may be implemented in at least one hardware form of digital signal processing (Digital Signal Processing, DSP), field programmable gate array (Field-Programmable Gate Array, FPGA), programmable logic array (Programmable Logic Array, PLA). The processor 4001 may integrate one or a combination of several of a central processing unit (Central Processing Unit, CPU), an image processor (Graphics Processing Unit, GPU), and a modem, etc. The CPU mainly processes an operating system, a user interface, an application program and the like; the GPU is used for rendering and drawing the content required to be displayed by the display screen; the modem is used to handle wireless communications. It will be appreciated that the modem may not be integrated into the processor 4001 and may be implemented by a single chip.

The Memory 4005 may include a random access Memory (Random Access Memory, RAM) or a Read-Only Memory (Read-Only Memory). Optionally, the memory 4005 comprises a non-transitory computer readable medium (non-transitory computer-readable storage medium). Memory 4005 may be used to store instructions, programs, code, sets of codes, or sets of instructions. The memory 4005 may include a stored program area and a stored data area, wherein the stored program area may store instructions for implementing an operating system, instructions for at least one function (such as a touch function, a sound playing function, an image playing function, etc.), instructions for implementing the above-described respective method embodiments, and the like; the storage data area may store data or the like referred to in the above respective method embodiments. The memory 4005 may also optionally be at least one memory device located remotely from the aforementioned processor 4001. As shown in fig. 9, an operating system, a network communication module, a user interface module, and a video image processing application program may be included in the memory 4005 as one type of computer storage medium.

The application provides a drive arrangement and module of making a video recording for making a video recording module, through set up a set of elastic support between SMA drive arrangement and OIS drive and replace the suspension wire structure, provide more reliable support for the relative motion between the two to reduce assembly complexity and manufacturing cost.

It is apparent that the above examples are only examples for clearly illustrating the present application and are not limited to the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are intended to be within the scope of the present application.

Claims

1. A driving device for a camera module, comprising:

a first driving device including a base;

a second driving device including a substrate;

a first horizontal end fixed on the substrate;

the vertical bending end is connected with the first horizontal end at one end;

the second horizontal end is connected with the other end of the vertical bending end and is used for suspending and supporting the base in the direction of the optical axis of the camera module;

the vertical bending end comprises:

a first elastic arm;

the first elastic arm and the second elastic arm are respectively positioned at two adjacent sides of the base;

the second elastic arm is connected with the first elastic arm through an L-shaped horizontal connecting part, and the first elastic arm or the second elastic arm comprises: at least one U-shaped elastic arm.

2. The drive of claim 1, wherein the first horizontal end is coupled to the base plate by a height adjustment block.

3. The driving device according to claim 1, wherein the second horizontal end is higher than the first horizontal end in an optical axis direction of the image pickup module.

4. The drive of claim 1, wherein the base includes a set of protrusions disposed in correspondence with the second horizontal ends, the second horizontal ends suspending the base by the protrusions.

5. The driving device according to claim 1, wherein,

the first driving device is an SMA driving device;

the second driving device is an OIS driving device.

6. The drive of claim 5, wherein the set of resilient supports comprises:

four elastic supporting parts are arranged at four corners of the substrate.

7. The driving device according to claim 5, wherein the elastic supporting portion includes: a metal spring piece.

8. A drive as recited in claim 5, wherein the SMA drive apparatus further comprises:

a lens carrier;

9. The drive device according to claim 8, wherein the lens carrier includes:

a carrier support;

the first bending block is arranged on the periphery of the carrier bracket;

10. The drive of claim 9, wherein the first driver comprises:

a first SMA drive wire;

11. The drive of claim 9, wherein the second driver comprises:

a second SMA drive wire;

12. A driving device according to claim 10, wherein the first SMA drive wire cooperates with the first flexure block to drive the lens carrier upward.

13. A driving device according to claim 11, wherein the second SMA drive wire cooperates with the second flexure block to drive the lens carrier to move downwardly.

14. The drive of claim 8, wherein the OIS drive further comprises:

a set of magnetic bodies connected with the base;

15. A camera module, comprising:

the drive device according to any one of claims 8 to 14;

and the lens assembly is connected with the lens carrier.

16. A terminal device comprising the camera module of claim 15.