CN113568132A

CN113568132A - Drive module, image acquisition device and electronic equipment

Info

Publication number: CN113568132A
Application number: CN202111006284.1A
Authority: CN
Inventors: 胡北
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2021-10-29

Abstract

The application relates to a driving module, an image acquisition device and an electronic device. The driving module comprises a first driving component and a second driving component. The first driving assembly comprises a mounting piece and a first driving coil arranged on the mounting piece. A second drive assembly is at least partially located on one side of the first drive assembly, the second drive assembly including a frame, a magnet assembly, a carrier, and a second drive coil. The frame and the first drive coil are arranged at intervals, the magnet group is arranged on the frame, the carrier is movably connected to the frame, and the second drive coil is arranged on the carrier. The second driving assembly moves along the first direction under the driving of the first driving coil. The image acquisition device comprises a lens module and the driving module, wherein the lens module is arranged on the carrier. Electronic equipment includes casing, display screen and above-mentioned image acquisition device, and the display screen is connected in the casing, and image acquisition device sets up in the casing. The driving module is simple in structure and beneficial to miniaturization design of electronic equipment.

Description

Drive module, image acquisition device and electronic equipment

Technical Field

The present application relates to the field of imaging devices, and in particular, to a driving module, an image capturing device, and an electronic device.

Background

With the continuous development of electronic technologies, the auto-focusing technology is widely applied to image capturing devices (such as cameras or cameras) of electronic devices such as smart phones and tablet computers. At present, the technology of applying the voice coil motor to the auto-focusing of the image capturing device is rapidly developing. Along with the improvement of the requirement of the market on the imaging effect of the electronic equipment, the requirement of the anti-shake function of the image acquisition device of the electronic equipment is higher and higher, so that the voice coil motor for realizing the anti-shake function becomes one of the important components for realizing the optical anti-shake imaging at present.

Therefore, in the image capturing device of the present electronic apparatus, voice coil motors for realizing the auto-focusing function and the auto-anti-shake function are respectively disposed, and the disposition and mounting structure of these voice coil motors makes the entire structure of the image capturing device complicated and thick, and further makes the aesthetic property of the electronic apparatus degraded, and does not meet the trend of miniaturization of the electronic apparatus pursued by the current user.

Disclosure of Invention

The embodiment of the application provides a driving module, an image acquisition device and electronic equipment.

According to a first aspect of the present disclosure, a driving module is provided in an embodiment of the present disclosure, which includes a first driving assembly and a second driving assembly. The first driving component comprises a first driving component mounting part and a first driving coil arranged on the mounting part, wherein the first driving coil is suitable for being excited by current to generate a first magnetic field. The second driving assembly is at least partially arranged on one side of the first driving assembly and is suitable for moving along the first direction under the driving of the first driving coil, the second driving assembly comprises a frame, a magnet group, a carrier and a second driving coil, the frame is arranged at a distance from the first driving coil, the magnet group is connected with the frame, and is suitable for driving the frame to move along a first direction under the excitation of a magnetic field generated by the first driving coil, the carrier is movably connected with the frame and used for mounting the lens module, the second driving coil is arranged on the carrier, and the second driving coil is suitable for generating a second magnetic field under the excitation of current, the driving coil drives the carrier to move along a second direction by means of the interaction of the second magnetic field and the magnetic field of the magnet group, and the second direction is intersected with the first direction and is consistent with the optical axis direction of the lens module.

According to a second aspect of the present application, an embodiment of the present application provides an image capturing apparatus, which includes a lens module and the above-mentioned driving module, wherein the lens module is mounted on a carrier.

According to a third aspect of the present application, an embodiment of the present application provides an electronic device, which includes a housing, a display screen, and the above image capturing device, where the display screen is connected to the housing, and the image capturing device is disposed in the housing.

The driving module provided by the embodiment of the application comprises a first driving assembly and a second driving assembly, wherein the second driving assembly is at least partially positioned on one side of the first driving assembly. The first driving coil of the first driving assembly is excited by current to generate a first magnetic field and drive the second driving assembly to move along a first direction, the magnet group drives the frame to move along the first direction under the drive of the first driving coil, the second driving coil is suitable for generating a second magnetic field under the excitation of the current and drives the carrier to move along a second direction by means of the interaction of the second magnetic field and the magnetic field of the magnet group, wherein the second direction is consistent with the optical axis direction of the lens module, and the first direction is intersected with the second direction. When the driving module is applied to the image acquisition device, the carrier is used for mounting the lens module, and the carrier moves along the second direction by virtue of the acting force between the second driving coil and the magnet group, namely the lens module is driven to move along the optical axis direction, so that the focusing function of the image acquisition device can be realized; the carrier is connected to the frame, the magnet assembly drives the frame and the carrier to move along the first direction under the action of the first driving coil, namely drives the lens module to move along the direction intersecting with the optical axis direction, and the anti-shake function of the image acquisition device can be realized. It can be seen that, in the process of realizing focusing and anti-shaking of the image acquisition device by the driving module, the first driving assembly drives the second driving assembly to move integrally, the magnet assembly is multiplexed, the focusing and anti-shaking functions are integrated in one driving module, and the structure of the driving module is relatively simple. Particularly, when the electronic equipment is applied, the driving module is installed on the image acquisition device, the image acquisition device is arranged in the shell of the electronic equipment, and the structure of the image acquisition device is simplified by simplifying the structure of the driving module, so that the attractiveness of the electronic equipment is improved, and the miniaturization of the electronic equipment is facilitated.

Drawings

In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of an electronic device according to an embodiment of the present application.

Fig. 2 is a perspective exploded view of the image capturing device of the electronic device shown in fig. 1.

Fig. 3 is a schematic perspective exploded view of a driving module of the image capturing device shown in fig. 2.

Fig. 4 is an exploded perspective view of the first and second driving assemblies of the driving module shown in fig. 3.

Fig. 5 is an exploded perspective view of a second driving assembly of the driving module shown in fig. 4.

Fig. 6 is a schematic perspective cross-sectional view of the driving module shown in fig. 3.

Fig. 7 is a partial sectional view and a magnetic force diagram of the first magnet and its matching structure in the driving module shown in fig. 6.

Fig. 8 is a schematic view of the magnetic forces of the first driving coil, the second driving coil and the second magnet in the moving die set shown in fig. 6.

Fig. 9 is a partial sectional view and a magnetic force diagram of a third magnet and its matching structure in the driving module shown in fig. 6.

Fig. 10 is an exploded perspective view of a second driving coil and a carrier of a second driving assembly according to another embodiment of the present application.

Fig. 11 is a perspective view of another perspective view of the second driving element of the driving module shown in fig. 3.

Fig. 12 is an exploded perspective view of the second drive assembly shown in fig. 11.

Fig. 13 is an exploded perspective view of the second driving assembly shown in fig. 11 from another perspective.

Fig. 14 is another exploded perspective view of the driving module shown in fig. 11.

Fig. 15 is a schematic exploded perspective view of the driving module shown in fig. 11.

Fig. 16 is a schematic perspective cross-sectional view of the driving module shown in fig. 11.

Fig. 17 is a schematic diagram of a cross-section of the drive module shown in fig. 11.

Fig. 18 is a schematic view of another cross-section of the drive module of fig. 11.

Fig. 19 is a schematic exploded perspective view of a driving module of the image capturing device shown in fig. 3.

Fig. 20 is an exploded perspective view of a driving module according to another embodiment of the present application.

Fig. 21 is an exploded perspective view of the driving module shown in fig. 20 from another viewing angle.

Detailed Description

In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

As used in embodiments herein, a "communication terminal" (or simply "terminal") includes, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). A communication terminal arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", a "wireless terminal", a "mobile terminal" and/or an "electronic device". Examples of electronic devices include, but are not limited to, satellite or cellular telephones; a Personal Communications System (PCS) terminal that may combine a cellular radiotelephone with data processing, facsimile and data communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver.

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. The specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to,"; "substantially" means that a person skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

The driving module, the image capturing device and the electronic device provided by the present application will be further described with reference to the following detailed description and the accompanying drawings.

Referring to fig. 1, the present disclosure provides a driving module 100, an image capturing device 200 configured with the driving module 100, and an electronic apparatus 300 configured with the image capturing device 200, wherein the driving module 100 can be applied to the image capturing device 200 for implementing a focusing function and an anti-shake function of the image capturing device 200. In the embodiment of the present application, the electronic device 300 may be, but is not limited to, an intelligent electronic device such as a mobile phone, a tablet computer, a notebook computer, a desktop computer, a sports camera, a smart watch, and the like. The electronic device 300 of the present embodiment is described by taking a mobile phone as an example.

The electronic device 300 may include a housing 301 and a display screen 303 disposed on the housing 301. In this embodiment, the display screen 303 generally includes a display panel, and may also include a circuit and the like for performing a touch operation on the display panel in response. The Display panel may be a Liquid Crystal Display (LCD) panel, and in some embodiments, the Display panel may also be a touch screen Display. In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inside", and the like indicate orientations or positional relationships based on those shown in the drawings, and are simply used for convenience of description of the present application, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Further, referring to fig. 2, the electronic device 300 further includes an image capturing device 200, and the image capturing device 200 is disposed in the housing 301 of the electronic device 300. In the embodiment of the application, the structure of the image capturing device 200 is simplified by simplifying the structure of the driving module 100, so that the aesthetic property of the electronic device 300 is improved, and the miniaturization of the electronic device 300 is facilitated. The image capturing apparatus 200 may include a lens module 201 and the driving module 100. The lens module 201 includes at least one lens 2011, the lens 2011 may be any one of a convex lens, a concave lens, a plane mirror and a filter, when the lens 2011 is plural, the plural lenses 2011 may include any two or more combinations of the convex lens, the concave lens, the plane mirror and the filter, and the plural lenses 2011 are disposed along the optical axis direction O1 to be used for converging and imaging the received light rays. The image capturing device 200 may further include an image sensor (not shown), which may be disposed on the driving module 100, or disposed outside the driving module 100, and arranged in the optical axis direction O1 with the lens module 201. The image capturing device 200 drives the lens module 201 to move relative to the image sensor through the driving module 100, so that the light penetrating through the lens module 201 is converged on the image sensor, thereby obtaining a clear image.

In some embodiments, the image capturing apparatus 200 may be any one or more of a front camera and a rear camera of the electronic device 300. The image capturing device 200 may also be a black and white camera, an infrared camera, a color camera, and the like, which is not limited in this application. Further, in some embodiments, other functional components may be mounted on the image capturing apparatus 200, for example, any one or more of a receiver assembly, a flashlight assembly, and the like may be mounted on the image capturing apparatus 200. In this application, the terms "mounted," "connected," "secured," and the like are to be construed broadly unless otherwise specifically stated or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through the inside of two members or they may be merely surface-contacting. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 3, in the embodiment of the present application, the driving module 100 includes a first driving assembly 10 and a second driving assembly 20, and the first driving assembly 10 and the second driving assembly 20 can move relatively. It should be understood that the terms "first" and "second" in the description of the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In application, the first driving assembly 10 may be fixed in the housing 301 of the electronic device 300, and the second driving assembly 20 is at least partially disposed at one side of the first driving assembly 10 and is used for mounting the lens module 201 to drive the lens module 201 to move relative to the image sensor, so as to implement the focusing function and the anti-shake function of the image capturing apparatus 200. The image sensor may be fixed in the housing 301, such as a middle frame of the electronic device 300, or may be fixed to the first driving assembly 10.

Referring to fig. 4, in the embodiment of the present application, the first driving assembly 10 includes a mounting member 12 and a first driving coil 14. The mounting member 12 has a substantially plate shape (e.g., a substantially rectangular plate shape), and is fixed in the housing 301 in an application, and is substantially perpendicular to the optical axis direction O1 of the lens module 201. The mounting member 12 may be formed with an optical passage that extends through the mounting member 12 along the optical axis direction O1 and opposes the image sensor to provide a transmission path for light.

The first driving coil 14 is disposed on the mounting member 12, and may be connected to a control main board of the electronic device 300 to receive a driving signal from the control main board, for example, receive an excitation current supplied by the control main board, so that the first driving coil 14 can generate a first magnetic field under excitation of the excitation current to drive the second driving assembly 20 to move along a first direction X by the action of the magnetic field/magnetic force, where the first direction X intersects with the optical axis direction O1. In the present embodiment, the first driving coil 14 is a coil winding, and the winding axis direction thereof is consistent with the optical axis direction O1 (e.g. substantially parallel to the optical axis direction O1). Specifically, the first drive coil 14 is laid substantially flat on the mounting plate 12 and substantially parallel to the lens assembly 201. The first drive coil 14 is configured to apply a force to the second drive assembly 20 along the first direction X so as to drive the second drive assembly 20 to move along the first direction X. Further, the first direction X may be perpendicular to the optical axis direction O1, and in the embodiment shown in fig. 3, the first direction X may be an extending direction along a plane in which the mounting member 12 is located. Therefore, when the first driving coil 14 drives the second driving assembly 14 to move along the first direction X, it can be considered that the second driving assembly 14 drives the lens module 201 to move along a direction parallel to the mounting member 12 (i.e. along a direction perpendicular to the optical axis direction OA), so as to implement the anti-shake function of the image capturing apparatus 200.

Further, the number of the first driving coils 14 is not limited, and for example, the first driving coils 14 may be one, two, three, or more than three. Specifically, in the embodiment shown in fig. 4, the number of the first driving coils 14 is three, two of the first driving coils are oppositely arranged at intervals, and the other one of the first driving coils is positioned at one side of the space between the two first driving coils, and the three first driving coils are arranged in a structure of n-U shape. In the embodiment of the present application, the plurality of first driving coils 14 are arranged on the mounting member 12 at intervals, so that the coverage area of the first magnetic field is large, and the second driving assembly 20 can be ensured to be always located in the first magnetic field after moving along the first direction X, thereby achieving reliable anti-shake of the image capturing apparatus 200. In other embodiments, the number of the first driving coils 14 may be four, and four first driving coils 14 are sequentially disposed on the surface of the mounting member 14 end to end, for example, four first driving coils 14 are disposed on four sides of a rectangular plate structure of the mounting member 14, and the four first driving coils 14 are arranged in a substantially "mouth" shape structure, so that the coverage area of the first magnetic field is relatively large.

In the embodiment of the present application, the second driving assembly 20 is disposed at one side of the mounting member 12, and includes a frame 21, a magnet assembly 22, a carrier 23, and a second driving coil 24. The frame 21 is spaced apart from the first driving coil 14, and the magnet assembly 22 is disposed on the frame 21 and is capable of driving the frame 21 to move along the first direction X under the excitation of the first magnetic field generated by the first driving coil 14. The carrier 23 is movably connected to the frame 21 and is used for mounting the lens module 201. The second driving coil 24 is disposed on the carrier 23 and located within the magnetic field generated by the magnet assembly 22, and is capable of generating a second magnetic field when excited by an electric current. The second driving coil 24 drives the carrier 23 to move in the second direction Y by interaction of the second magnetic field with the magnetic field of the magnet group 22, wherein the second direction Y coincides with the optical axis direction O1 (e.g., the second direction Y is substantially parallel to the optical axis direction O1). When the second driving coil 24 drives the carrier 23 to move along the second direction Y, the carrier 23 can drive the lens module 201 to move along the optical axis direction O1, so as to realize the focusing function of the image capturing apparatus 200.

It can be seen that, in the process of implementing focusing and anti-shake of the image capturing apparatus 200 by the driving module 100, the first driving assembly 10 drives the second driving assembly 20 to move integrally, the magnet assembly 22 is multiplexed, the focusing and anti-shake functions are integrated into one driving module 100, and the structure of the driving module 100 is relatively simple. Specifically, in the application, the driving module 100 is mounted on the image capturing apparatus 200, and the image capturing apparatus 200 is disposed in the housing 301 of the electronic device 300, so that the structure of the image capturing apparatus 200 is simplified by simplifying the structure of the driving module 100, and the appearance of the electronic device 300 is improved, which is beneficial to the miniaturization of the electronic device 300.

The driving module 100 according to some embodiments of the present application will be described in detail with reference to the accompanying drawings.

Referring to fig. 5, in the embodiment shown in fig. 5, the frame 21 is substantially a hollow structure, and includes a frame body 213, a first fixing portion 215, a second fixing portion 217, and a third fixing portion 219. The frame body 213 has a substantially rectangular frame shape, and is spaced apart from the mounting member 12. The first fixing portion 215, the second fixing portion 217, and the third fixing portion 219 are disposed on one side of the frame body 213 facing the mounting 12, and are disposed to face the three first driving coils 14, respectively.

Specifically, the first fixing portion 215 is connected to the frame body 213 on the side facing the attachment 12 and is located between the frame body 213 and the attachment 12. The first fixing portion 215 is provided with a first receiving groove 2151, and the first receiving groove 2151 penetrates through the surface of the first fixing portion 215 facing the mounting member 12, so that the opening direction of the first receiving groove 2151 faces the mounting member 12. The first receiving groove 2151 is used to fix and at least partially receive the magnet assembly 22, so as to reduce the overall volume of the second driving assembly 20 and to make the mounting connection between the frame 21 and the magnet assembly 22 more secure.

The second fixing portion 217 is connected to a side of the frame body 213 facing the mounting member 12 and is spaced apart from the first fixing portion 215. The second fixing portion 217 has a second receiving slot 2171, and the second receiving slot 2171 penetrates through a surface of the second fixing portion 217 facing the mounting member 12, so that an opening direction of the second receiving slot 2171 faces the mounting member 12. The second receiving slot 2171 is used to fix and at least partially receive the magnet assembly 22, so as to achieve the effect of reducing the overall volume of the second driving assembly 20 and make the mounting connection between the frame 21 and the magnet assembly 22 more secure.

The third fixing portion 219 is connected to a side of the frame body 213 facing the mounting device 12 and located between the first fixing portion 215 and the second fixing portion 217. Specifically, two ends of the third fixing portion 219 are respectively adjacent to the first fixing portion 215 and the second fixing portion 217, which are arranged in an n-shaped structure and together define a receiving space 210. The receiving space 210 is used for receiving the carrier 23 so as to reduce the thickness dimension of the driving module 100. Further, a third accommodating groove 2191 is formed in the third fixing portion 219, and the third accommodating groove 2191 penetrates through the surface of the third fixing portion 219 facing the mounting device 12, so that the opening direction of the third accommodating groove 2191 faces the mounting device 12. The third receiving groove 2191 is used to fix and at least partially receive the magnet assembly 22, so as to achieve the effect of reducing the overall volume of the second driving assembly 20 and to make the mounting connection between the frame 21 and the magnet assembly 22 more secure.

The magnet assembly 22 is attached to the frame 21 and is spaced (e.g., oppositely disposed) or stacked/superposed with respect to the first drive coil 14. The magnet assembly 22 is configured to move the frame 21 in the first direction X under excitation of the first magnetic field generated by the first driving coil 14. In the present embodiment, the number of magnets included in the magnet group 22 is not limited, and in order to accommodate the number of first driving coils 14 in the present embodiment, the magnet group 22 may include three magnets, which are respectively disposed opposite to the three first driving coils 14; in other embodiments, the magnet assembly 22 may include one, two, three, or more magnets.

For example, in the embodiment shown in fig. 5, the magnet assembly 22 includes a first magnet 221 and a second magnet 223, the first magnet 221 and the second magnet 223 are disposed at an interval and connected to the frame 21, respectively, wherein the first magnet 221 is embedded in the first accommodating groove 2151, and the second magnet 223 is embedded in the second accommodating groove 2171. Further, the magnet assembly 22 may further include a third magnet 225, the third magnet 225 is disposed between the first magnet 221 and the second magnet 223 and embedded in the third accommodating groove 2191, and the first magnet 221, the second magnet 223 and the third magnet 225 are substantially arranged in an n-shaped structure.

In the embodiment of the present application, the arrangement of the magnetic poles of the magnet group 22 is not limited, and it may be arranged according to the characteristics of the current flow direction of the first driving coil 14 to achieve the movement in the first direction X under the driving of the first driving coil 14. In some of these embodiments, the magnet assembly 22 is substantially stacked above the first drive coil 14, and the first magnet 221, the second magnet 223, and the third magnet 225 can each be bipolar magnets. It should be understood that in the embodiments of the present application, a magnet is a "bipolar magnet" which is understood to mean that the magnet has two pairs of poles, for example, the magnet comprises two magnetic parts, each having a north pole and a south pole.

Specifically, referring to fig. 6 and 7, taking the first magnet 221 as an example, the first magnet 221 may include a first magnetic portion 2211 and a second magnetic portion 2213, and the first magnetic portion 2211 and the second magnetic portion 2213 may be stacked along the second direction Y. Specifically, the first magnetic force portion 2211 is located on the side of the second magnetic force portion 2213 away from the first driving coil 14, and the second magnetic force portion 2213 is located between the first magnetic force portion 2211 and the first driving coil 14. Further, a magnetic shielding portion 2215 may be disposed between the first magnetic portion 2211 and the second magnetic portion 2213 to ensure a fixed connection relationship between the first magnetic portion 2211 and the second magnetic portion 2213. In the relative direction of fig. 7, the first magnetic portion 2211 has an S-pole on the left side, an N-pole on the right side, an N-pole on the left side, and an S-pole on the right side, and the first magnetic portion 2211 and the second magnetic portion 2213 hardly receive the magnetic force action therebetween. When the coil corresponding to the first magnet 221 in the first driving coils 14 is energized (i.e., current direction in the figure), it can apply a force along the first direction X to the first magnet 221, so that the first magnet 221 can drive the frame 21 and the carrier 23 to move in the first direction X. Specifically, as can be seen from the above, the first direction X is substantially the arrangement direction of the plane of the mounting member 12, and the first direction X may actually include two directional components, that is, the first sub-direction X1 and the second sub-direction X2, and the first sub-direction X1 and the second sub-direction X2 intersect with each other (e.g., are perpendicular to each other), so that, by virtue of the above-mentioned magnetic arrangement of the two poles of the first magnet 221, after the first magnet 221 and the first driving coil 14 corresponding to the first magnet 221 interact with each other, the first magnet 221 is subjected to the force Fx1 along the first sub-direction X1 exerted by the first driving coil 14, so as to bring the frame 21 and the carrier 23 to implement the anti-shake function of the first sub-direction X1.

In the present embodiment, the second magnet 223 is disposed substantially in parallel with the first magnet 221 at an interval, and the magnetic pole arrangement of the second magnet 223 is substantially the same as that of the first magnet 221. Referring to fig. 8, the second magnet 223 may include a first magnetic portion 2231 and a second magnetic portion 2233, and the first magnetic portion 2231 and the second magnetic portion 2233 may be stacked in the second direction Y. Specifically, the second magnetic force part 2233 may be located between the first magnetic force part 2231 and the first driving coil 14. Further, a magnetic isolation portion 2235 may be disposed between the first magnetic portion 2231 and the second magnetic portion 2233 to ensure a fixed connection relationship between the first magnetic portion 2231 and the second magnetic portion 2233. As seen in the relative direction of fig. 8, the first magnetic part 2231 has an N-pole on the left side, an S-pole on the right side, and the second magnetic part 2233 has an S-pole on the left side and an N-pole on the right side, and the first magnetic part 2231 and the second magnetic part 2233 hardly receive the magnetic force therebetween. When the coil corresponding to the second magnet 223 among the plurality of first driving coils 14 is energized (as the current direction in fig. 8), it may apply a force along the first direction X to the second magnet 223, so that the second magnet 223 can drive the frame 21 and the carrier 23 to move in the first direction X. Specifically, by virtue of the above-mentioned magnetic pole arrangement of the two magnetic poles of the second magnet 223, after the second magnet 223 interacts with the corresponding first driving coil 14, the second magnet 223 receives the force Fx1 applied by the first driving coil 14 along the first sub-direction X1, so that the second magnet 223 can cooperate with the first magnet 221 to realize the anti-shake function of the first sub-direction X1, and the anti-shake function of the frame 21 and the carrier 23 is more reliable.

Further, referring to fig. 9, in the embodiment of fig. 9, the third magnet 225 is a bipolar magnet, the third magnet 225 includes a first magnetic force part 2251 and a second magnetic force part 2253, and the first magnetic force part 2251 and the second magnetic force part 2253 may be arranged in parallel along the first direction X. Specifically, the first magnetic force part 2251 and the second magnetic force part 2253 may be arranged in parallel in the first sub-direction X1, and the second magnetic force part 2253 may be located between the first magnetic force part 2251 and the carrier 23. Further, a magnetic isolation part 22555 may be disposed between the first and second

magnetic parts

2251 and 2253 to ensure a fixed connection relationship between the first and second

magnetic parts

2251 and 2253. In the relative direction in fig. 9, the upper side of the first magnetic part 2251 is an S pole, the lower side is an N pole, the upper side of the second magnetic part 2253 is an N pole, and the lower side is an S pole, so that the first magnetic part 2251 and the second magnetic part 2253 hardly receive the magnetic force action therebetween. When the coil corresponding to the third magnet 225 in the first driving coils 14 is energized (i.e., current direction in the figure), it applies a force along the first direction X to the third magnet 225, so that the first magnet 221 can drive the frame 21 and the carrier 23 to move in the first direction X. Specifically, by virtue of the above-mentioned magnetic pole arrangement of the double magnetic poles of the third magnet 225, after the third magnet 225 and the first driving coil 14 corresponding to the third magnet 225 are interacted with each other, the third magnet 225 is subjected to a force Fx2 in the second sub-direction X2 exerted by the first driving coil 14, so as to drive the frame 21 and the carrier 23 to realize the anti-shake function in the second sub-direction X2.

Further, in order to limit the position of the magnet assembly 22 or/and the second driving assembly 20 in the non-operating state from being fixed and avoid the occurrence of an improper shake, a structure for limiting the position of the magnet assembly 22 or/and the second driving assembly 20 may be provided in the driving module 100, for example, the position of the magnet assembly 22 or/and the second driving assembly 20 in the non-operating state may be limited by an interaction force between a permanent magnet or a magnetizer and the magnet assembly 22 or/and the second driving assembly 20. In the present embodiment, the position of the magnet assembly 22 may be limited by a magnetic conductor.

Specifically, referring to fig. 6 again, the first driving assembly 10 may further include a magnetic conductive member 16 and a base 18. The mounting member 12 overlies the base 18 and the magnetically permeable member 16 is disposed on the base 18 and within the magnetic field generated by the magnet assembly 22. In the embodiment of the present application, the magnetic conducting member 16 may not have magnetism, for example, the magnetic conducting member 16 may be made of ferrite, or the magnetic conducting member 16 itself may be a permanent magnet. When the magnetizer 16 is located in the magnetic field of the magnet assembly 22, it is subject to the magnetic force of the magnet assembly 22, and a mutual attractive force is formed between the two to limit the position of the magnet assembly 22 relative to the magnetizer 16 (the mounting member 12), so that the magnet assembly 22 is not substantially separated from the second driving assembly 20 when not being subjected to the force of the first driving coil 14.

The number of the magnetic conductive members 16 is not limited, in this embodiment, in order to adapt to the number of the coils in the first driving coil 14 and the number of the magnets in the magnet group 22, the magnetic conductive members 16 may include three sheet-shaped magnetic conductive structures, the three sheet-shaped magnetic conductive structures may form a rectangular arrangement structure together, and the three magnetic conductive members 16 are respectively disposed corresponding to the three magnets in the three first driving coils 14 and the magnet group 22. In other embodiments, when the number of the first driving coils 14 is 4, or/and the magnet assembly 14 includes four magnets, the magnetic conductive member 16 may include four plate-shaped magnetic conductive structures, for example, four magnetic conductive members 16 are respectively disposed corresponding to four magnets in the four first driving coils 14 and the magnet assembly 22. Further, the magnetic permeability μ of the magnetic conductive member 16 is between 1H/m and 2H/m. Further, in some embodiments, the base 18 may be provided with a plurality of receiving grooves (not shown) for receiving the magnetic conductive member 16, so as to achieve the effect of reducing the volume of the second driving assembly 20 and make the mounting connection between the mounting member 12 and the magnetic conductive member 16 more secure.

In the present embodiment, the carrier 23 is movably connected to the frame 21 and is located in the accommodating space 210. The end face of the carrier 23 is substantially flush with the end face of the frame 21, and its outer periphery is disposed opposite to and spaced from the magnet group 22. In the present embodiment, the carrier 23 has a hollow structure, is substantially rectangular frame-shaped, and is provided with an accommodating portion 231, and the accommodating portion 231 is used for mounting the lens module 201. The accommodating portion 231 is a through hole structure, and penetrates through the carrier along the optical axis direction O1 to facilitate light collection of the lens module 201. In other words, the axial direction of the through hole structure of the accommodating portion 231 coincides with the optical axis direction O1.

The second driving coil 24 is disposed on the outer periphery of the carrier 23 and between the carrier 23 and the magnet assembly 22. Further, the second drive coil 24 may be spaced from the magnet assembly 22 and positioned within the magnetic field generated by the magnet assembly 22. The second driving coil 24 may be electrically connected to a control motherboard of the electronic device 300 to receive a driving signal, such as an excitation current, from the control motherboard, so that the second driving coil 24 can generate a second magnetic field under excitation of the current, and drive the carrier 23 to move along the second direction Y by interaction between the second magnetic field and the magnetic field of the magnet assembly 22. The second direction Y intersects the first direction X and coincides with the optical axis direction O1 of the lens module 201.

In the embodiment of the present application, the winding direction of the second driving coil 24 is not limited, and the structure thereof is adapted to the arrangement direction of the magnetic poles of the magnet assembly 22, so as to realize the function of the driving carrier 23.

For example, in the present embodiment, the second driving coil 24 is fixed to the carrier 23 such that the axial direction thereof is aligned with the first direction X, that is, the axial direction in which the second driving coil 24 is wound is substantially perpendicular to the optical axis direction O1. When the second driving coil 24 is powered on, the second magnetic field generated by the second driving coil 24 interacts with the magnet assembly 22 (e.g., the first magnet 221 or/and the second magnet 223) with a bipolar characteristic, so that the second driving coil 24 can drive the frame 21 to move along the optical axis direction O1, and thus the carrier 23 and the lens module 201 on the carrier 23 are driven to move along the optical axis direction O1, so as to achieve the focusing function of the image capturing apparatus 200.

For example, the second driving coil 24 may include a first sub-coil 241 and a second sub-coil 243, and the first sub-coil 241 and the second sub-coil 243 are respectively disposed at opposite sides of the carrier 23. The first sub-coil 241 and the second sub-coil 243 may be embedded in the carrier 23 or may be laid on the surface of the carrier 23. For example, the outer circumference of the carrier 23 may be provided with a protruding fixing portion 233, the fixing portion 233 being convex with respect to the surface of the carrier 23. In order to accommodate the number of the second driving coils 24, two fixing portions 233 may be provided, two fixing portions 233 may be respectively disposed at opposite sides of the carrier 23, and the first and second sub-coils 241 and 243 are respectively wound on the two fixing portions 233. Further, the first sub-coil 241 is disposed to face the first magnet 221, the second sub-coil 243 is disposed to face the second magnet 223, and the axial directions in which the first sub-coil 241 and the second sub-coil 243 are wound are both substantially perpendicular to the optical axis direction O1.

Referring to fig. 7 and 8, after the first sub-coil 241 and the second sub-coil 243 are energized (as shown in the current direction), the first magnet 221 and the second magnet 223 are respectively applied with a force along the second direction Y, so that the first magnet 221 and the second magnet 223 can drive the frame 21 and the carrier 23 to move in the second direction Y. Specifically, as can be seen from the above description, the first direction Y is substantially the optical axis direction O1, and therefore, due to the arrangement of the two magnetic poles of the first magnet 221 and the second magnet 223, after the first magnet 221 and the second magnet 223 respectively interact with the first sub-coil 241 and the second sub-coil 243, the first magnet 221 and the second magnet 223 respectively receive the force Fy applied by the first sub-coil 241 and the second sub-coil 243 along the second direction Y, so as to realize the focusing function of the driving module 100. This structure enables the second driving coil 24 and the first driving coil 14 to share the same magnet group 22, enables the structure of the driving module 100 to be simpler, and enables the thickness dimension of the driving module 100 to be reduced.

For another example, in other embodiments, the second drive coil 14 may be directly wrapped around the outer periphery of the carrier 23 (as shown in fig. 10), with a portion of the structure being disposed opposite the magnet assembly 22. The axial direction around which the second driving coil 14 is wound coincides with the second direction Y/optical axis direction O1. Further, in the present embodiment, the surface of the carrier 23 is provided with a fixing portion 233 for fixing the second driving coil 24, the fixing portion 233 is a groove structure, and the second driving coil 24 is embedded in the groove structure of the fixing portion 233. The second driving coil 214 of the present embodiment can be moved along the second direction Y/the optical axis direction O1 by the interaction force between the current and the magnet assembly 22, so that the focusing function of the image capturing apparatus 200 can be realized.

Further, referring to fig. 11, in the present embodiment, the second driving assembly 20 may further include a reset element 25, and the reset element 25 is connected between the frame 21 and the carrier 23 and is capable of providing a restoring force for the movement of the carrier 23 in the second direction Y. The reset piece 25 is substantially in the shape of a spring piece, and is stacked on the end surfaces of the frame 21 and the carrier 23, when the carrier 23 moves in the second direction Y under the action force between the magnet assembly 22 and the second driving coil 24, and the end surface of the carrier 23 protrudes relative to the end surface of the frame 21, the reset piece 25 is pushed to generate elastic deformation, and an opposite force is applied to the carrier 23, and when the action force between the magnet assembly 22 and the second driving coil 24 disappears, the reset piece 25 restores to be deformed, so that the reset piece 23 is pushed to return to the initial position, such as being located in the receiving space 210 of the frame 21.

Referring to fig. 12, as an example, the restoring member 25 is substantially superposed on the frame 21 and the side of the carrier 23 away from the mounting member 12, and the restoring member 25 may be made of metal or/and plastic and substantially takes the form of a sheet-like structure. The restoring member 25 includes a first connecting portion 251, a second connecting portion 253, and an elastic deformation portion 255. The first connecting portions 251 are connected to the frame 21, in this embodiment, the number of the first connecting portions 251 is approximately 4, and four first connecting portions 251 are respectively connected to four corners of the frame 21. The second connecting portion 253 is connected to the carrier 23, and in the present embodiment, the second connecting portion 253 has a substantially annular structure, and an axial direction thereof coincides with the optical axis direction O1. The second connecting portion 253 is stacked on the carrier 23 and surrounds the accommodating portion 231. The elastic deformation portion 255 has an elastic deformation capability, and is connected between the first connection portion 251 and the second connection portion 253. Specifically, the elastic deformation portions 255 may have a strip-shaped structure, and the number of the elastic deformation portions may be four, and each of the elastic deformation portions 225 of the strip-shaped structure is connected between the corresponding one of the first connection portions 251 and the corresponding one of the second connection portions 253, so as to be elastically deformed.

When the carrier 23 moves along the second direction Y to protrude relative to the frame 21, the elastic deformation portion 255 is pulled by the second connecting portion 253 fixed to the carrier 23 to be elastically deformed to take a curved shape protruding outward from the optical axis, so as to provide a force in an opposite direction to the carrier 23, thereby providing a possibility for the movement recovery of the carrier 23. When the force applied to the carrier 23 is removed (e.g., when the second driving coil 24 stops generating the second magnetic field), the elastic deformation portion 255 recovers its deformation, and pushes the carrier 23 into the accommodating space 210, so that the carrier 23 and the end surface of the frame 21 are substantially flush. In the present embodiment, the elastic deformation portion 255 is an elastic thread-like structure made of an elastic material (such as rubber, plastic, etc.). In other embodiments, the elastic deformation portion 255 may be an elastic thread-like structure made of a rigid material (e.g., metal).

Further, referring to fig. 13, the second driving assembly 20 may further include a buffer 26, and the buffer 26 is connected between the frame 21 and the carrier 23 and is capable of providing a restoring force for the movement of the carrier 23 in the first direction X. The buffer member 26 is substantially in the form of a spring plate, and is superposed on the end surfaces of the frame 21 and the carrier 23 remote from the reset member 25. When the carrier 23 moves in the first direction X under the action of the force between the magnet assembly 22 and the first driving coil 14, the buffer 26 is pushed to generate elastic deformation and apply an opposite force to the carrier 23, and when the action force between the magnet assembly 22 and the first driving coil 14 disappears, the buffer 26 recovers the deformation, so that the carrier 23 is pushed to return to the initial position, such as being located at a substantially middle position in the accommodating space 210 of the frame 21. Therefore, through the cooperation of the buffer 26 and the reset key 25, the movable connection between the carrier 23 and the frame 21 can be realized, and the carrier 23 can be stably kept in the accommodating space 210 of the frame 21, so that the structure of the driving module 100 is more reliable

As an example, the buffer 26 is substantially overlapped on the side of the frame 21 and the carrier 23 close to the mounting member 12, and the buffer 26 may be made of metal or/and plastic and substantially present a sheet-like structure. The buffer 26 includes a third connecting portion 261, a fourth connecting portion 263 and a buffering portion 265, the third connecting portion 261 is connected to the frame 21, in this embodiment, the third connecting portion 261 may have a sheet structure, the number of the third connecting portion 261 may be four, and the four third connecting portions 261 are respectively connected to four corners of the frame 21. The fourth connection portion 263 is connected to the carrier 23, and in the present embodiment, the fourth connection portion 263 has a substantially annular structure, and an axial direction thereof coincides with the optical axis direction O1. The fourth connecting portion 263 is stacked on the carrier 23 and surrounds the accommodating portion 231. The buffer portion 265 has an elastic deformation capability and is connected between the third connecting portion 261 and the fourth connecting portion 263. Specifically, the buffer portions 265 may be wavy or bent strip structures, the number of which may be four, and the strip structure of each buffer portion 265 is connected between the corresponding one of the third connection portions 261 and the fourth connection portion 263 to facilitate elastic deformation.

When the carrier 23 moves along the first direction X relative to the frame 21 (for example, when the driving module 100 is impacted/shaken by an external force), the buffering portion 265 is pulled by the fourth connecting portion 263 fixed to the carrier 23 to be elastically deformed, and the bent structure thereof is compressed or stretched, so as to provide a force in an opposite direction to the carrier 23, thereby providing a possibility for the motion recovery of the carrier 23. When the force applied to the carrier 23 is removed (e.g., when the external force of shaking/bumping the driving module 100 is removed), the buffer portion 265 is deformed again to push the carrier 23 into the substantially middle position of the accommodating space 210. In the present embodiment, the buffer 265 is an elastic thread structure made of an elastic material (such as rubber, plastic, etc.). In other embodiments, the buffer 265 may be an elastic thread structure made of a rigid material (e.g., metal).

Referring to fig. 14, in the embodiment of the present application, the driving module 100 may further include a driving circuit 30 and a position sensor 40. The driving circuit 30 may be connected to a side of the mounting member 12 of the first driving assembly 10 away from the frame 21, and electrically connected to the first driving coil 14 and the second driving coil 24. The driving circuit 30 may be electrically connected to a control main board of the electronic device 300, so as to allow the control main board to send driving signals to the first driving coil 14 or/and the second driving coil 24 through the driving circuit 30, so as to control the driving module 100 to move to implement the anti-shake and focusing functions of the image capturing apparatus 200.

The driving circuit 30 may be provided as a flexible circuit board, and in the present embodiment, the driving circuit 30 includes a main body portion 32, a bent connection portion 34, and an electrical connection portion 36. In the present embodiment, the main body portion 32 has a substantially flat plate shape, is substantially stacked on the mounting piece 12, and is electrically connected to the first driving coil 14. The main body portion 32 may be opened with a light transmission passage having an axis direction coincident with the optical axis direction O1, the transmission passage being substantially coaxial with and communicating with the accommodating portion 231. The main body 32 has notches at four corners thereof, which serve as clearance notches for other structures of the driving module 100, as will be described below. The bent connection portion 34 is connected to an edge of the main body portion 32 and bent with respect to the main body portion 32. Specifically, the bent connection portion 34 may be perpendicular to the main body portion 32 and extend toward the frame 21. The electrical connection portion 36 is disposed at an end of the bent connection portion 34 away from the main body portion 32, and is electrically connected to the second driving coil 24. In the present embodiment, by designing the driving circuit 30 as a bent electrical connection structure, wherein the bent connection portion 34 can be disposed opposite to and substantially parallel to the outer side surface of the frame 12, the structure makes the space occupied by the driving circuit 30 relatively small, and simplifies the structure of the driving module 100. Further, the driving circuit 30 may further include an electrical connection terminal 38, where the electrical connection terminal 38 is connected to the main body portion 32 and extends in a direction away from the frame 21 relative to the main body portion 32, and the electrical connection terminal 38 is used for connecting to a control motherboard of the electronic device 100 or/and a control chip of the image capturing apparatus 100.

A position sensor 40 is fixedly disposed relative to the mount 12 and is used to sense the position of the magnet assembly 22 relative to the first drive coil 14. In the present embodiment, the position sensor 40 is disposed on the main body portion 32 of the driving circuit 30 and electrically connected to the driving circuit 30. In other embodiments, the position sensor 40 may be disposed on the mount 12. As an example, the position sensor 40 may be a magnetic sensor, such as a hall sensor, which can detect the distance between the magnet assembly 22 and the first driving coil 14 through the magnetic field strength and then output a signal to the driving circuit 30, and the driving circuit 30 adjusts the current magnitude of the first driving coil 14 according to the signal to control the displacement magnitude of the magnet assembly 22, thereby realizing the loop control of the closed driving module 100. As another example, the position sensor 40 may also be a photoelectric sensor, which can detect a relative distance between the magnet assembly 22 and the first driving coil 14 by using a light signal, and then transmit the signal back to the driving circuit 30, and the driving circuit 30 adjusts the current magnitude of the first driving coil 14 according to the signal to control the displacement magnitude of the magnet assembly 22, so as to implement the closed-loop control of the driving module 100.

Referring to fig. 15, in the embodiment of the present application, the driving module 100 may further include a roller assembly 50. The roller assembly 50 includes a plurality of rollers disposed between the frame 21 and the mounting member 12 or/and the base 18 such that when the frame 21 slides relative to the mounting member 12 or/and the base 18, the rollers roll to generate rolling friction to facilitate the movement. In the present embodiment, the roller assembly 50 includes a roller frame 52, a first roller set 54, and a second roller set 56. The roller frame 52 is disposed between the frame 21 and the base 18, and the roller frame 52 includes a first mounting portion 525 and a second mounting portion 527, where the first mounting portion 525 and the second mounting portion 527 are used for placing the first roller set 54 and the second roller set 56, respectively. In the present embodiment, the first mounting portion 525 and the second mounting portion 527 are each provided substantially in a rectangular plate-like structure, with the narrower side of the first mounting portion 525 being provided toward the frame 21, and the wider side of the second mounting portion 527 being provided toward the frame 21.

Specifically, the mounting member 12 is provided with a first side 123 and a second side 125, and the first side 123 and the second side 125 are adjacent to each other (e.g., substantially perpendicular to each other). The first mounting portion 525 is disposed along the first side 123 of the mounting member 12. The first mounting portion 525 includes a first plate 5251, and the first plate 5251 is disposed along the first side 123 and substantially perpendicular to the first side 123. The first plate 5251 is opposite to one side (e.g., a side surface rather than an end surface) of the frame 21. Specifically, the first plate 5251 is disposed substantially parallel to and opposite to the outer side of the first fixing portion 215 of the frame 21, and the first plate 5251, the first fixing portion 215, and the carrier 23 are sequentially disposed in parallel in the first sub-direction X1, so that the roller frame 52, the frame 21, and the carrier 23 are nested in the thickness direction of the drive module 100, and the thickness dimension of the drive module 100 is relatively small. Further, a first boss 5253 and a second boss 5255 are disposed on one side of the first mounting portion 525, the first boss 5253 and the second boss 5255 are disposed at two opposite ends of the first plate 5251, respectively, and the first fixing portion 215 is located between the first boss 5253 and the second boss 5255. The first and

second bosses

5253 and 5255 are each provided with a roller groove for mounting a roller.

Referring to fig. 15 and 16, the second mounting portion 527 is connected to one end of the first mounting portion 525 and disposed along the second side 125 of the mounting member 12, the second mounting portion 527 includes a second plate 5271, and the second plate 5271 is disposed along the second side 125 and substantially parallel to and opposite to the second side 125. Specifically, the second plate 5271 is positioned between the frame body 213 of the frame 21 and the attachment 12, the frame body 213, the second plate 5271 and the attachment 12 are sequentially arranged in parallel in the second direction Y (the optical axis direction O1), and the magnet assembly 22 is not provided between the frame body 211 and the second plate 5271 or between the second plate 5271 and the attachment 12, that is, the second mounting portion 527 is positioned in a space between the first fixing portion 215 and the second fixing portion 217 and faces the third fixing portion 219, so that the roller frame 52 is provided in a vacant portion of the frame 21 where no fixing portion is provided, and the nested structure of the frame 21 and the roller frame 52 can be sufficiently utilized, thereby further making the structure of the drive module 100 more compact, and contributing to the miniaturization design of the drive module 100 and the image pickup apparatus 200. Further, a third boss 5273 may be disposed on one side of the second mounting portion 527, and the third boss 5273 is disposed at one end of the second plate 5271 away from the first plate 5251. The third bosses 5273 are provided with roller grooves for mounting rollers.

Referring to fig. 17 and 18, in the embodiment of the present application, the roller frame 52 is further provided with a first direction roller groove 521 and a second direction roller groove 523. In this embodiment, three first direction roller grooves 521 may be provided on the sides of the first, second, and

third bosses

5253, 5255, 5273 facing the frame body 213. The inner wall of the first-direction roller groove 521 is at least partially inclined to limit the rotational direction of the roller therein. Specifically, as shown in fig. 17, the first direction roller groove 521 is provided with a first surface 5211 and a second surface 5213, the included angle between the first surface 5211 and the second surface 5213 is less than 180 degrees, so as to together form a guide groove structure 5215, and the guide groove structure 5215 is arranged along the first sub-direction X1, so as to limit the roller to roll in the first sub-direction X1. The number of the second-direction roller grooves 523 may be three, and the three second-direction roller grooves 523 are respectively disposed on the sides of the first, second, and

third bosses

5253, 5255, 5273 facing the mounting member 12/the base 18. Specifically, as shown in fig. 18, the second-direction roller groove 523 is provided with a first surface 5231 and a second surface 5233, the included angle between the first surface 5231 and the second surface 5233 is less than 180 degrees to jointly form a guide groove structure 5235, and the guide groove structure 5215 is arranged along the second sub-direction X2 to limit the roller to roll in the second sub-direction X2.

In the embodiment, the first roller set 54 includes at least one first roller 541, and the first roller 541 is disposed in the first direction roller groove 521. In this embodiment, the number of the first rollers 541 is three, and the first rollers 541 can roll only in the first sub-direction X1 by being restricted by the first-direction roller groove 521. The second roller set 56 includes at least one second roller 561, and the second roller 561 is disposed in the second direction roller groove 523. In the present embodiment, the number of the second rollers 561 is three, and the second rollers 561 can roll only in the second sub-direction X2 limited by the second direction roller grooves 523.

Further, referring to fig. 19, in the embodiment of the present application, the roller assembly 50 further includes a common roller 58, and the common roller 58 is located between the frame 21 and the base 18 and is used for supporting the carrier 23 together with the first roller set 54 and the second roller set 56, so that the installation of the driving module 100 is more stable. Accordingly, the frame 21 may be provided with a first recess 211, the base 18 may be provided with a second recess 181, the first recess 211 and the second recess 181 being arranged opposite to each other and together defining a receiving space for receiving the common roller 58, the common roller 58 being at least partially arranged in the first recess 211 and the second recess 181.

In the embodiment of the present application, the driving module 100 may further include a housing 60. In the present embodiment, the housing 60 has a substantially rectangular shell-like structure, and an opening is formed on a side facing the base 18. The housing 60 is used for providing a housing space 62 for the first driving assembly 10, the second driving assembly 20, the driving circuit 30, the position sensor 40 and the roller assembly 50, and is connected with the base 18 to form a closed structure.

In assembly, first, the mounting member 12, the drive circuit 30, and the base 18 are stacked in this order, the first drive coil 14 is arranged on the mounting member 12, and the first drive coil 14 is electrically connected to the drive circuit 30. Next, the magnet assembly 22 is inserted into the receiving slot of the frame 21, so that the magnets in the magnet assembly 22 are approximately surrounded outside the receiving space 210. Then, the second driving coil 24 is wound around the carrier 23, the carrier 23 with the second driving coil 24 is placed in the housing space 210 of the frame 21 so that the plurality of magnets are in a form of surrounding the outer periphery of the carrier 23 with at least one of the plurality of magnets facing the second driving coil 24, and the restoring member 25 and the buffer member 26 are placed on both end surfaces of the frame 21 and the carrier 23 and are connected to the frame 21 and the carrier 23, respectively. Again, the roller assemblies 50, when assembled, are stacked on the mount 12/base 18 such that the common rollers 58 are positioned within the second groove 181. Finally, the frame 21 is stacked on the mounting member 12 and the roller assembly 50 such that the common roller 58 is located in the first groove 211 and the first fixing portion 215 is directly and relatively juxtaposed with the first plate 5251 in the first direction X, so as to reduce the dimension (i.e., the thickness dimension) of the drive module 100 in the second direction Y. Finally, the housing 60 is covered outside the frame 21 and fixedly connected with the base 18, so that the first driving assembly 10, the second driving assembly 20, the driving circuit 30, the position sensor 40 and the roller assembly 50 are all accommodated in the housing 60, thereby forming a modular structure and facilitating production and assembly.

In use, when the first driving coil 14 is powered on, a force in a first direction X can be applied to the second driving assembly 20 so as to drive the second driving assembly 20 to move along the first direction X, which may be an extending direction along the plane of the mounting member 12. Therefore, when the first driving coil 14 moves along the first direction X through the second driving assembly 14, it can be considered that the second driving assembly 14 drives the lens module 201 to move along a direction parallel to the mounting member 12, so as to implement the anti-shake function. The second driving coil 24 drives the carrier 23 to move in the second direction Y by interaction of the second magnetic field with the magnetic field of the magnet group 22, wherein the second direction Y coincides with the optical axis direction O1. When the second driving coil 24 drives the carrier 23 to move along the second direction Y, the carrier 23 can drive the lens module 201 to move along the optical axis direction O1, so as to realize the focusing function of the image capturing apparatus 200.

In the above embodiments of the present disclosure, the magnet assembly 22 of the driving module 100 includes three magnets, the three magnets are arranged in an n-shape and embedded in the frame 21, and correspondingly, there are three fixing portions of the frame 21 and three first driving coils 14, so as to correspond to the three magnets one by one. It should be understood that in other embodiments, the magnet assembly 22 may include four magnets, which will be described in more detail below.

Referring to fig. 20, in the embodiment shown in fig. 20, the magnet assembly 22 may include four magnets, which are a first magnet 221, a second magnet 223, a third magnet 225 and a fourth magnet 227, the first magnet 221 and the second magnet 223 are disposed opposite to each other at a distance and are respectively connected to the frame 21, the third magnet 225 and the fourth magnet 227 are located between the first magnet 221 and the second magnet 223, the third magnet 225 and the fourth magnet 227 are disposed opposite to each other at a distance and are respectively connected to the frame 21, the first magnet 221, the second magnet 223, the third magnet 225 and the fourth magnet 227 may jointly define a receiving space, and the carrier 23 and the second driving coil 24 may be disposed in the receiving space, so that the driving module 100 has a driving structure in a nested arrangement, and a relatively small volume.

Referring to fig. 21, correspondingly, the frame 21 has four fixing portions, four accommodating slots and four first driving coils 14, so as to correspond to the four magnets one by one. The first magnet 221, the second magnet 223, the third magnet 225 and the fourth magnet 227 are respectively embedded into the four accommodating grooves, and the four accommodating grooves are arranged in a substantially square-shaped structure. The first magnet 221, the second magnet 223, the third magnet 225, and the fourth magnet 227 may be bipolar magnets, and the first driving coil 14 is driven to move in the first direction X, so as to drive the frame 21 and the carrier 23 to perform the anti-shake function in the first direction X.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not necessarily depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims

1. The utility model provides a drive module which characterized in that is applied to image acquisition device, image acquisition device includes the lens module, drive module includes:

the first driving assembly comprises a mounting piece and a first driving coil arranged on the mounting piece; the first drive coil is adapted to be excited by an electrical current to generate a first magnetic field; and

the second driving assembly is at least partially positioned on one side of the first driving assembly and is suitable for moving along a first direction under the driving of the first driving coil; the second drive assembly includes:

a frame spaced from the first drive coil;

the magnet group is arranged on the frame and is suitable for driving the frame to move along the first direction under the excitation of the magnetic field generated by the first driving coil;

the carrier is movably connected to the frame and used for mounting the lens module; and

a second drive coil disposed on the carrier and within the magnetic field generated by the magnet assembly; the second driving coil is suitable for generating a second magnetic field under the excitation of current, and the second driving coil drives the carrier to move along a second direction by means of the interaction of the second magnetic field and the magnetic field of the magnet group, wherein the second direction is intersected with the first direction and is consistent with the optical axis direction of the lens module.

2. The drive module of claim 1, wherein the magnet assembly includes a first magnet and a second magnet, the first magnet and the second magnet being spaced apart from one another; the carrier and the second drive coil are disposed between the first magnet and the second magnet.

3. The drive module of claim 2, wherein the magnet assembly further includes a third magnet and a fourth magnet, the third magnet and the fourth magnet being spaced apart from each other and being disposed in a space between the first magnet and the second magnet, the first magnet, the second magnet, the third magnet and the fourth magnet together defining a receiving space, and the carrier and the second drive coil being disposed in the receiving space.

4. The drive module of claim 2, wherein the magnet assembly further includes a third magnet disposed on one side of a space between the first magnet and the second magnet, the first magnet, the second magnet, and the third magnet collectively defining a receiving space, the carrier and the second drive coil being disposed in the receiving space.

5. The drive module of claim 2, wherein the carrier is provided with a receptacle for mounting the lens module; the second driving coil is arranged on the periphery of the carrier in a surrounding mode and is spaced from the first magnet and the second magnet, and the axis direction of the second driving coil in a winding mode is consistent with the second direction.

6. The drive module of claim 2, wherein the carrier is provided with a receptacle for mounting the lens module; the second driving coil comprises a first sub-coil and a second sub-coil, and the first sub-coil and the second sub-coil are respectively installed on two opposite sides of the carrier; the first sub-coil is opposite to the first magnet, and the axis direction wound by the first sub-coil is vertical to the second direction; or/and the second sub-coil is opposite to the second magnet, and the axis direction wound by the second sub-coil is vertical to the second direction.

7. The drive module according to claim 2, wherein the axial direction around which the first drive coil is wound coincides with the second direction, and the first magnet is provided on one side of the first drive coil; the first magnet comprises a first magnetic portion and a second magnetic portion connected to each other, the second magnetic portion being located between the first magnetic portion and the mounting member, the first magnetic portion and the second magnetic portion each having a south pole and a north pole; and/or the first and/or second light-emitting diodes are arranged in the light-emitting diode,

the axial direction wound by the first driving coil is consistent with the second direction; the second magnet is arranged on one side of the first driving coil; the second magnet includes a first magnetic portion and a second magnetic portion connected to each other, the second magnetic portion being located between the first magnetic portion and the mounting member, the first magnetic portion and the second magnetic portion each having a south pole and a north pole.

8. The drive module of claim 1, further comprising a drive circuit and a position sensor, wherein the drive circuit is connected to the mounting member and electrically connected to the first drive coil and the second drive coil; the position sensor is fixedly disposed relative to the mount and adapted to sense a position of the magnet assembly relative to the first drive coil.

9. The drive module according to claim 8, wherein the drive circuit is a flexible circuit board, the drive circuit includes a main body portion, a bent connecting portion, and an electrical connecting portion, the main body portion is overlapped with the mounting member and electrically connected to the first drive coil, and the bent connecting portion is connected to the main body portion and bent with respect to the main body portion; the electric connection part is connected to one end, far away from the main body part, of the bent connection part and is electrically connected with the second driving coil.

10. The drive module of claim 1, wherein the first drive assembly further comprises a base, the mount fixedly disposed to the base; the drive module further comprises a roller assembly, and the roller assembly is arranged between the frame and the base.

11. The drive module of claim 10, wherein the roller assembly includes a roller frame, a first roller set, and a second roller set; the roller frame is arranged between the frame and the base, the first roller group is arranged between the frame and the roller frame, and the second roller group is arranged between the roller frame and the base.

12. The drive module of claim 11, wherein a side of the roller frame facing the frame is provided with a first direction roller groove, the first roller group comprises at least one first roller, the first roller is disposed in the first direction roller groove, and an inner wall of the first direction roller groove is at least partially disposed obliquely; or/and

the roller frame deviates from one side of frame is equipped with second direction roller groove, second roller group includes at least one second roller, the second roller set up in the second direction roller groove, the inner wall in second direction roller groove sets up at least partially the slope.

13. The drive module of claim 10, wherein the roller assembly further comprises a common roller, the frame defines a first groove, the base defines a second groove, and the first groove is disposed opposite the second groove; the common roller is at least partially disposed within the first groove and the second groove.

14. The drive module of claim 10, wherein the mounting member includes first and second adjacent sides, the roller frame including a first mounting portion disposed along the first side and a second mounting portion coupled to an end of the first mounting portion and disposed along the second side; the both ends of first installation department all are equipped with the roller groove, the second installation department is kept away from the one end of first installation department is equipped with the roller groove, first roller group includes three roller, every the roller sets up in a corresponding roller inslot.

15. The drive module of claim 14, wherein the first mounting portion includes a first plate, a first boss, and a second boss, the first plate is disposed along the first side and opposite to one side of the frame, the first boss and the second boss are respectively disposed at opposite ends of the first plate, and the first boss and the second boss are each provided with the roller slot.

16. The drive module of claim 14, wherein the second mounting portion includes a second plate disposed along the second side edge and between the frame and the mounting member, and a third boss disposed at an end of the second plate remote from the first plate, the third boss defining the roller slot.

17. The drive module of claim 16, wherein the frame includes a frame body and a first fixing portion, the frame body is stacked on a side of the roller frame facing away from the base, the first fixing portion has a first receiving slot, the first fixing portion is connected to the frame body and located between the first boss and the second boss, and the magnet assembly is partially embedded in the receiving slot.

18. The drive module of claim 17, wherein the frame further comprises a second fixing portion, the second fixing portion having a second receiving slot, the second fixing portion being connected to the frame body and spaced apart from the first fixing portion, the magnet assembly being partially embedded in the second receiving slot; or/and

the frame further comprises a third fixing part, the third fixing part is provided with a third accommodating groove, the third fixing part is connected to the frame body and is positioned between the first fixing part and the second fixing part, and the magnet group is partially embedded into the third accommodating groove; or/and

the first plate body, the first fixing part and the carrier are arranged in parallel in sequence along the first direction.

19. The drive module of claim 1, further comprising a housing, wherein the first drive component and the second drive component are disposed within the housing.

20. The drive module of claim 1, wherein the first drive component further comprises a magnetically permeable member disposed on the mounting member and positioned within the magnetic field generated by the magnet assembly.

21. The drive module of any of claims 1-20, wherein the second drive assembly further comprises a reset element coupled between the frame and the carrier and adapted to provide a restoring force for movement of the carrier in the second direction.

22. The drive module of claim 21, wherein the reset element comprises a first connecting portion, a second connecting portion and an elastically deformable portion, the first connecting portion is connected to the frame, the second connecting portion is connected to the carrier, and the elastically deformable portion is connected between the first connecting portion and the second connecting portion.

23. The drive module of any of claims 1-20, wherein the second drive component further comprises a buffer coupled between the frame and the carrier and adapted to provide a restoring force for movement of the carrier in the first direction.

24. The drive module of claim 23, wherein the buffer member comprises a third connecting portion connected to the frame, a fourth connecting portion connected to the carrier, and a buffer portion having an elastically deformable structure adapted to deform in the second direction, the buffer portion being connected between the third connecting portion and the fourth connecting portion.

25. An image acquisition apparatus, characterized by comprising:

a lens module; and

a drive module according to any one of claims 1 to 24; the lens module is mounted on the carrier.

26. An electronic device, comprising:

a housing;

the display screen is connected to the shell;

the image capture device of claim 25, disposed within the housing.