CN212623284U - Driving structure, lens module and electronic equipment - Google Patents

Abstract

The application discloses a driving structure, which comprises a fixed part, a first movable assembly, a second movable assembly and a driving part, wherein the first movable assembly is connected with the fixed part in a sliding mode along a first direction, the first movable assembly is provided with a first guide part which is obliquely arranged relative to a second direction, the first direction is orthogonal to the second direction, and the second movable assembly is connected with the first guide part in a sliding mode; the driving part is used for driving the first movable assembly to move along the first direction so as to drive the second movable assembly to move along the first guide part in the second direction. Thus, the size and the weight of the driving structure are reduced. The application also provides a lens module and an electronic device comprising the driving structure.

Description

Driving structure, lens module and electronic equipment

Technical Field

The present disclosure relates to driving apparatuses, and particularly to a driving structure for driving a lens module, a lens module and an electronic device.

Background

In recent years, with the development of multimedia technology, the application range of lens modules is becoming wider and wider, such as being applied to electronic products such as digital cameras, video cameras, mobile phones with camera function, and the like. While the quality of images taken of objects by electronic products is continuously improved, the structure of electronic products is developing more and more in the direction of light, thin, short and small.

The lens module generally includes a lens, a voice coil driving structure and an image sensor. The voice coil driving structure mainly comprises a lens bracket, a coil, an outer frame and a plurality of magnets. The lens support is movably accommodated in the outer frame, the lens is fixed on the lens support, the coil is wound on the outer wall of the lens support, and the magnets are fixed on the outer frame. When the coil is electrified, magnetic force is generated between the coil and the magnet, so that the position of the lens support is changed, namely the position of the lens relative to the image sensor is changed, and focusing or zooming is further realized.

However, in the conventional voice coil driving structure, the structure of the driving structure is complicated, and the size and weight of the driving structure are large.

SUMMERY OF THE UTILITY MODEL

In order to solve the foregoing problems, the present application provides a driving structure, a lens module and an electronic device that are beneficial to development of light and thin.

In a first aspect, the present application provides a driving structure, including a fixed component, a first movable component, a second movable component, and a driving component, where the first movable component is slidably connected to the fixed component along a first direction, the first movable component has a first guide portion disposed to be inclined with respect to a second direction, the first direction is orthogonal to the second direction, and the second movable component is slidably connected to the first guide portion; the driving part is used for driving the first movable assembly to move along the first direction so as to drive the second movable assembly to move along the first guide part in the second direction.

The application provides a drive structure's structure is comparatively simplified, is favorable to reducing drive structure's size and weight, and the drive structure of being convenient for realizes miniaturization, frivolous design.

In one embodiment, the first guide portion includes an inclined surface inclined to the second direction, and at least a portion of the second movable assembly is slidably coupled to the inclined surface. In this way, guidance is provided for the second movable assembly, which is able to move in the second direction when the first movable assembly moves in the first direction.

In an embodiment, the first guide portion includes a guide slot inclined to the second direction, and at least a portion of the second movable assembly is movably received in the guide slot. In this manner, guidance is provided for the second movable assembly.

In an embodiment, the first guiding portion includes a guiding rod disposed obliquely to the second direction, and at least a portion of the second movable assembly is movably sleeved on the guiding rod. In this manner, guidance is provided for the second movable assembly.

In one embodiment, a second guide portion extending along the first direction is provided on the fixed component, and the first movable assembly is connected with the second guide portion in a sliding manner along the first direction; and/or the driving structure further comprises a lubricant coated on the second guide part. Through setting up the second guide part, provide the direction along first direction for first movable assembly, improve the smooth and easy nature of first movable assembly relative first fixed part motion.

In one embodiment, when the drive structure includes a lubricant coated on the second guide portion, the lubricant is a graphite lubricant. The graphite lubricant still has excellent performance under severe working conditions, has strong adaptability and is not easy to fall off, and in addition, the friction and the abrasion of the surface coated by the graphite lubricant are obviously reduced.

In an embodiment, the second guiding portion is a guiding slot, the guiding slot extends along the first direction, and the first movable assembly is movably accommodated in the guiding slot. Through setting up the guide way, provide the direction for first movable assembly.

In one embodiment, the second guiding portion is a guiding rod, the guiding rod extends along the first direction, and the first movable assembly is movably sleeved on the guiding rod.

In an embodiment, the second movable assembly includes a first slider and a lens carrier, which are fixedly connected, and the first slider is slidably connected with the first guide portion. Therefore, the first sliding block can move in the second direction along the first guide part, and indirectly drives the lens carrier to move in the second direction.

In one embodiment, the first slider and/or the first guide portion is made of a graphite alloy. Therefore, the problem of friction loss in the sliding process can be effectively reduced, and the problem of friction and heat generation is greatly reduced.

In an embodiment, the portable electronic device further comprises a housing, the housing comprises a cover plate and a side plate which are fixedly connected, an accommodating space is enclosed by the cover plate and the side plate, the first movable assembly, the second movable assembly and the driving part are accommodated in the accommodating space, and the fixed part is fixed on one side of the side plate, which is away from the cover plate, so as to cover the accommodating space. The shell provides protection for the fixed part, the first movable assembly, the second movable assembly and the driving part, and interference of external environment on devices and structures inside the driving structure is reduced.

In an embodiment, a third guiding portion extending along the second direction is disposed on the side plate, and the third guiding portion is slidably connected to the second movable assembly along the second direction. By providing the third guide portion, the third guide portion is provided with guidance in the second direction.

In an embodiment, the cover plate further includes a plurality of elastic elements, and the elastic elements are disposed between the second movable assembly and the fixed component, and/or the elastic elements are disposed between the second movable assembly and the cover plate. Therefore, support and guide can be provided for the second movable assembly, and the second movable assembly is pushed to move or reset.

In an embodiment, the elastic element includes a first elastic member, the first elastic member includes a first needle, a first spring and a first sleeve, the first spring is fixedly connected between the first needle and the fixed component, the first sleeve is sleeved on the first spring, at least a portion of the first spring abuts against an inner wall of the first sleeve, one end of the first sleeve, which deviates from the first needle, is fixedly connected with the fixed component, and one end of the first needle, which deviates from the first spring, abuts against the second movable component. Therefore, the first elastic piece is not easy to deform and has good toughness, and the yield of the driving structure is improved; the process difficulty is low; the occupied area is small, and the size of the driving structure is favorably reduced.

In an embodiment, the elastic element further includes a second elastic element, the second elastic element includes a second needle, a second spring and a second sleeve, the second spring is fixedly connected between the second needle and the cover plate, the second sleeve is sleeved on the second spring, at least a portion of the second spring abuts against an inner wall of the second sleeve, one end of the second sleeve, which is far away from the second needle, is fixedly connected with the cover plate, and one end of the second needle, which is far away from the second spring, abuts against the second movable assembly. Therefore, the second elastic part is not easy to deform and has good toughness, and the yield of the driving structure is improved; the process difficulty is low; the occupied area is small, and the size of the driving structure is favorably reduced.

In one embodiment, the first elastic member and the second elastic member are symmetrically disposed with respect to the second movable assembly. Therefore, the lens carrier is not easy to deform, the yield of the driving structure is improved, and the first elastic piece, the second elastic piece and the second sliding block are connected more stably.

In one embodiment, the driving member further comprises a solenoid, one of the magnet and the solenoid is fixedly connected with the fixed member, the other of the magnet and the solenoid is fixedly connected with the first movable assembly, and the interaction between the magnetic field generated by the solenoid after being electrified and the magnetic field of the magnet causes the first movable assembly to move relative to the fixed member along the first direction. Through the arrangement of the magnet and the solenoid, the driving structure is simplified, and the weight and the thickness of the driving structure are reduced.

In one embodiment, the solenoid includes a coil having a passage extending through the coil and a core fixedly disposed through the passage, the coil being energized to generate a magnetic field that covers the magnet and moves the magnet relative to the coil. By arranging the core part in the coil, the magnetism of the coil can be enhanced, and the magnet is better driven to move relative to the coil.

In one embodiment, the driving member includes a push rod fixedly connected to the first movable assembly. The push rod is used for driving the first movable assembly to move along the first direction under the action of force.

In an embodiment, the drive member comprises a piezoelectric drive. Therefore, the piezoelectric driving device is stretched and contracted by adjusting the voltage of the piezoelectric driving device, so that a force for driving the first movable assembly to move along the first direction is generated.

In a second aspect, the present application provides a lens module, which includes a lens and the driving structure, wherein the lens is fixedly connected to the second movable assembly. The lens module can be designed to be smaller in size and more portable due to the driving structure.

In a third aspect, the present application provides an electronic device, which includes a processor, an image sensor and the lens module, where the processor, the image sensor and the driving structure are electrically connected, the image sensor is configured to receive light input from the lens and convert the light into image information, and the processor is configured to control the driving structure to drive the lens to move. The lens module is convenient for the electronic equipment to realize the design of miniaturization, lightness and thinness.

Drawings

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

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

Fig. 2 is a block diagram of an electronic device according to a first embodiment of the present application.

Fig. 3 is an exploded perspective view of a lens module according to a first embodiment of the present disclosure.

Fig. 4 is an exploded perspective view of the driving structure of the lens module shown in fig. 3.

Fig. 5 is a schematic plan view of a partial structure of the driving structure shown in fig. 3.

Fig. 6 is a perspective view of a partial structure of the driving structure shown in fig. 3.

Fig. 7 is a perspective view of a partial structure of the driving structure shown in fig. 3.

Fig. 8 is a perspective view of a second movable assembly of the driving structure shown in fig. 3.

Fig. 9 is a perspective view of a housing of the driving structure shown in fig. 3.

Fig. 10 is a perspective view illustrating a first elastic member of the driving structure shown in fig. 3.

Fig. 11 is a perspective view illustrating a second elastic member of the driving structure shown in fig. 3.

Fig. 12 is a schematic perspective view of a first movable assembly and a second movable assembly according to a second embodiment of the present application.

Fig. 13 is a schematic perspective view of a first movable assembly and a second movable assembly according to a third embodiment of the present application.

Fig. 14 is a schematic perspective view of a first movable assembly and a second movable assembly according to a third embodiment of the present disclosure.

Fig. 15 is a schematic perspective view of a first movable assembly and a second movable assembly according to a fourth embodiment of the present disclosure.

Detailed Description

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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application.

First embodiment

Referring to fig. 1, an electronic device 300 provided in the present application may be, but is not limited to, a video camera, a Mobile phone (e.g., an Android phone, an iOS phone, etc.), a tablet computer, a Mobile Internet Device (MID), a Personal Digital Assistant (PDA), a notebook computer, etc. The electronic device 300 in the present embodiment is described by taking a mobile phone as an example.

Referring to fig. 2 and 3, the electronic device 300 includes a lens module 200, a processor 301, an image sensor 302, a communication bus 303, at least one communication interface 305, and a memory 306. The lens module 200 includes a driving structure 100 and a lens 201, wherein the driving structure 100 is used for carrying the lens 201 and driving the lens 201 to move relative to the image sensor 302, so as to implement zooming or focusing. The light reflected by the subject can be irradiated onto the image sensor 302 through the lens 201, and the image sensor 302 is configured to receive the light reflected by the subject and convert the received light into image information. The subject refers to a scene to be photographed by the electronic device 300 or a person including the user itself. The processor 301 is used for controlling the driving structure 100 to drive the lens 201 to move. The processor 301 is communicatively connected to the lens module 200, at least one communication interface 305, and the memory 306 via a communication bus 303.

The Processor 301 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, discrete hardware component, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, and the processor 301 is the control center of the electronic device 300 and connects the various parts of the entire electronic device 300 using various interfaces and lines. The communication bus 303 may include a path that conveys information between the aforementioned components.

The communication interface 305 is a device using any transceiver or the like for communicating with other devices or communication networks, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), and the like.

The memory 306 may be used to store computer programs and/or modules, and the processor 301 implements various functions of the electronic device 300 by running or executing the computer programs and/or modules stored in the memory 306 and invoking data stored in the memory 306. The memory 306 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, application programs (such as a photographing function, an image playing function, and the like) required for a plurality of functions, and the like; the data storage area may store data (such as image data, etc.) created according to the use of the electronic device 300, and the like. In addition, the memory 306 may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), a plurality of magnetic disk storage devices, a Flash memory device, or other volatile solid state storage devices. The memory 306 may be self-contained and coupled to the processor 301 via a communication bus 303. The memory 306 may also be integrated with the processor 301.

In particular implementations, electronic device 300 may include multiple processors 301, such as CPU0 and CPU1 in fig. 2, for example, as an implementation. Each of the processors 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (e.g., computer program instructions).

The electronic device 300 may also include a display 308 for displaying images. It is understood that fig. 2 is only an example of the electronic device 300 and does not constitute a limitation to the electronic device 300, and the electronic device 300 may include more or less components than those shown in fig. 2, or may combine some components, or different components, for example, the electronic device 300 may further include an input/output device, a network access device, etc., which are not limited herein.

For convenience of explanation, a three-dimensional coordinate system is established with the optical axis L of the lens 201 as a Z-axis and a plane perpendicular to the optical axis L as an XY-plane in which the X-axis and the Y-axis are perpendicular to each other. The X-axis extending direction is taken as a first direction, the Z-axis extending direction is taken as a second direction, and the first direction is perpendicular to the second direction.

Referring to fig. 4, 5 and 6, the driving structure 100 includes a fixed component 10, a first movable component 30, a second movable component 40 and a driving component 50, the first movable component 30 is connected with the fixed component 10 in a sliding manner along a first direction (e.g., an X axis shown in fig. 4), the first movable component 30 has a first guiding portion 31 inclined with respect to a second direction (e.g., a Z axis shown in fig. 4), and the second movable component 40 is connected with the first guiding portion 31 in a sliding manner. In the present embodiment, the first guide portion 31 is a slope inclined from the XY plane, and the second movable assembly 40 is slidable along the slope. The second movable assembly 40 is fixedly connected to the lens 201, the second movable assembly 40 is used for carrying the lens 201, and the driving part 50 is used for driving the first movable assembly 30 to move along the first direction so as to drive the second movable assembly 40 to move along the first guiding portion 31 in the second direction.

In the lens module 200 and the driving structure 100 provided by the present application, the driving part 50 drives the first movable assembly 30 to move along the first direction, and further drives the second movable assembly 40 to move along the second direction, so as to realize zooming or focusing of the lens module 200. Compared with the prior art, the structure of the driving structure 100 provided by the application is simplified, the structure arrangement is compact, the size and the weight of the driving structure 100 are reduced, and the driving structure 100 is convenient to realize the miniaturization and the light and thin design.

It is to be understood that the first guide portion 31 is not limited to the inclined surface, for example, the first guide portion 31 may also be, but not limited to, a guide groove, a guide bar, etc. disposed obliquely to the XY plane.

In the present embodiment, the driving structure 100 further includes a magnet 53, the driving member 50 includes a solenoid 51, the solenoid 51 is fixedly connected to the fixed member 10, the magnet 53 is fixedly connected to the first movable assembly 30, the solenoid 51 is used for generating a magnetic field covering the magnet 53 after being energized, and the interaction between the magnetic field of the solenoid 51 and the magnetic field of the magnet 53 causes the magnet 53 to move in a first direction (X-axis direction shown in fig. 4) relative to the solenoid 51, and causes the first movable assembly 30 to move in the first direction relative to the fixed member 10, thereby moving the second movable assembly 40 in a second direction (Z-axis direction shown in fig. 4). In the prior art, magnets are usually arranged around the lens, the magnets are large in size, and the number of the magnets is large (for example, four), and the driving structure 100 provided by the present application does not need to arrange the magnets around the lens 201, but the magnets 53 are arranged in the thickness direction (i.e., the second direction) of the driving structure 100, which is beneficial to reducing the size of the driving structure 100 along the radial direction of the lens 201. In addition, the number of the magnets of the driving structure 100 in the present application may be one, and the magnets may also have a smaller volume, so that the driving structure 100 is advantageous to realize a small-sized, light-weight and thin design.

It will be appreciated that the solenoid 51 is not limited to being fixedly connected to the stationary member 10 and the magnet 53 is fixedly connected to the first movable assembly 30. For example, in the modified embodiment, the solenoid 51 may be fixedly connected to the first movable assembly 30, and the magnet 53 may be fixedly connected to the fixed member 10, that is, one of the solenoid 51 and the magnet 53 may be fixedly connected to the fixed member 10, and the other of the solenoid 51 and the magnet 53 may be fixedly connected to the first movable assembly 30, so that the magnetic force between the solenoid 51 and the magnet 53 may push the first movable assembly 30 to move in the first direction.

In the present embodiment, the solenoid 51 includes a coil 511 and a core 513, the coil 511 has a passage extending through the coil 511, and the core 513 extends in a first direction and is fixedly disposed through the passage, thereby enhancing the magnetic properties of the coil 511. When the solenoid 51 is energized, a magnetic force is generated, and the magnetic pole of the solenoid 51 may be changed according to the change of the current direction, so that the control magnet 53 moves toward the side away from the solenoid 51 or moves toward the side close to the solenoid 51. In addition, the magnitude of the magnetic force of the solenoid 51 can be changed with the change of the current intensity, so as to control the distance between the magnet 53 and the solenoid 51, for example, the larger the current intensity passing through the solenoid 51, the larger the magnetic force of the solenoid 51, the larger the distance between the magnet 53 and the solenoid 51; conversely, the smaller the current intensity passing through the solenoid 51, the smaller the magnetic force of the solenoid 51, and the smaller the distance between the magnet 53 and the solenoid 51. In the prior art, a coil is usually wound around the lens, and in the present application, the coil 511 is disposed in the thickness direction (i.e., the second direction) of the driving structure 100, and the coil 511 is wound on the core 513 extending along the first direction, which is beneficial to reducing the size of the driving structure 100 along the radial direction of the lens 201.

In the present embodiment, the core 513 is made of a soft iron or silicon steel material. Thus, the solenoid 51 is magnetized when it is energized and the magnetization disappears when it is de-energized, which is advantageous for controlling the movement of the first movable assembly 30.

In the present embodiment, the magnet 53 is a permanent magnet. It is understood that the core 513 may be omitted.

It is understood that the driving part 50 is not limited to include the solenoid 51. For example, in a modified embodiment, the driving part 50 may further include a push rod fixedly connected to the first movable assembly 30, and the push rod is configured to be forced to move the first movable assembly 30 along the first direction. For another example, in another modified embodiment, the driving part 50 may further include a piezoelectric driving device, i.e., a force for driving the first movable assembly 30 to move in the first direction is generated by adjusting the voltage of the piezoelectric driving device to expand and contract. It will be appreciated that the magnet 53 may also be omitted when the drive member 50 comprises a push rod or a piezoelectric drive, i.e. without electromagnetic drive.

In the present embodiment, the first movable member 30 is made of a graphite alloy, which is an alloy produced by melting graphite and metal at a high temperature in a certain ratio, and has a low friction coefficient and a high self-lubricating property. The graphite alloy is prepared by powder metallurgy, namely, metal powder or a mixture of metal powder and nonmetal powder is used as a raw material, and the graphite alloy is prepared by forming and sintering. In the present embodiment, the composition of the produced graphite alloy may include, but is not limited to, babbitt metal and the like. Since graphite is an excellent lubricant, the lubricating property of the graphite is completely maintained after metal is added, the friction loss in the sliding process is effectively reduced, and the phenomenon of friction and heat generation is improved.

Referring to fig. 7, the fixed component 10 is provided with a second guiding portion 11 extending along a first direction (an X-axis direction shown in fig. 7), in this embodiment, the second guiding portion 11 is a guiding groove provided on the fixed component 10, the guiding groove extends along the first direction (the X-axis direction shown in fig. 7), the first movable assembly 30 is movably accommodated in the guiding groove, the first movable assembly 30 is slidably connected with the guiding groove, and the guiding groove is used for providing guidance for the first movable assembly 30 along the first direction.

It is understood that the second guiding portion 11 is not limited to be a guiding groove, for example, in the modified embodiment, the second guiding portion 11 may also be but not limited to be a guiding rod, so that the first movable element 30 is movably sleeved on the guiding rod, that is, the second guiding portion 11 can provide guidance for the first movable element 30 in the first direction.

The drive structure 100 further includes a lubricant coated on the second guide portion 11. In the present embodiment, the lubricant is a graphite lubricant. The graphite lubricant can adapt to a severe working environment, and is not easy to fall off, and in addition, the friction and the abrasion of the surface coated by the graphite lubricant are obviously reduced. It is to be understood that the lubricant is not limited to graphite lubricant, for example, the lubricant may also be, but is not limited to, lubricating oil and the like. It is understood that in the modified embodiment, the lubricant may be omitted.

Referring to fig. 8, the second movable assembly 40 includes a lens carrier 41, a first sliding block 43 and a second sliding block 45, the first sliding block 43 and the second sliding block 45 are both fixedly connected to the lens carrier 41, and the first sliding block 43 is slidably connected to the first guiding portion 31. In this embodiment, referring to fig. 6 and 8, the first slider 43 has a guide surface 431, the extending direction of the guide surface 431 is parallel to the extending direction of the first guide portion 31, and the guide surface 431 is attached to the inclined surface of the first guide portion 31, so as to increase the contact area between the first slider 43 and the first guide portion 31, to make the sliding connection between the first slider 43 and the first guide portion 31 more stable, and to indirectly improve the stability of the lens carrier 41. In the present embodiment, the first slider 43 is made of graphite alloy, so that the friction force between the first slider 43 and the first guide portion 31 can be reduced, the friction loss during the sliding process can be effectively reduced, the relative movement between the first slider 43 and the first guide portion 31 can be smoother, and the heat generation due to friction can be improved. In addition, because the first sliding block 43 and the first movable assembly 30 are both made of graphite alloy, the friction force between the first sliding block 43 and the first movable assembly 30 can be reduced, so that other lubricants do not need to be coated between the first sliding block 43 and the first movable assembly 30, and the cost is saved.

Referring to fig. 4 and fig. 9, the driving structure 100 further includes a housing 70 and a plurality of elastic elements 80, the housing 70 includes a cover plate 71 and a side plate 73 fixedly connected to each other, the cover plate 71 and the side plate 73 enclose an accommodating space 75, the first movable assembly 30, the second movable assembly 40, the magnet 53 and the solenoid 51 are all accommodated in the accommodating space 75, and the fixing member 10 is fixed to an end of the side plate 73 away from the cover plate 71 so as to cover the accommodating space 75. The side plate 73 is provided with a third guiding portion 731 extending in the second direction (the Z-axis direction shown in fig. 9), and the third guiding portion 731 is used for providing guidance for the second movable assembly 40. In the present embodiment, the third guide portion 731 is a guide groove provided in the side plate 73, and the second slider 45 is movably accommodated in the third guide portion 731.

It should be understood that the third guiding portion 731 is not limited to be a guiding groove provided on the side plate 73, for example, in the modified embodiment, the third guiding portion 731 may also be, but not limited to be, a guiding post, and the second slider 45 is movably sleeved on the guiding post, that is, the third guiding portion 731 can provide a guide for the second slider 45 in the second direction.

As shown in fig. 4, an elastic member 80 may be disposed between the lens carrier 41 and the fixing member 10, and may also be disposed between the lens carrier 41 and the cover plate 71. By providing the elastic element 80, support and guidance can be provided for the second movable assembly 40, which is beneficial to pushing the second movable assembly 40 to move or reset.

In this embodiment, the elastic element 80 includes a first elastic element 81 and a second elastic element 83, please refer to fig. 4 and 10, in which the first elastic element 81 includes a first needle 811, a first spring 813 and a first sleeve 815, the first spring 813 is fixedly connected between the first needle 811 and the fixing member 10, the first sleeve 815 is sleeved on the first spring 813, and at least a portion of the first spring 813 abuts against an inner wall 8151 of the first sleeve 815. The end of the first sleeve 815 facing away from the first needle 811 is fixedly connected to the fixing element 10, and the end of the first needle 811 facing away from the first spring 813 abuts against the second slider 45. Referring to the structure of the first elastic element 81, please refer to fig. 4 and 11, the second elastic element 83 includes a second needle 831, a second spring 833 and a second sleeve 835, the second spring 833 is fixedly connected between the second needle 831 and the cover plate 71, the second sleeve 835 is sleeved on the second spring 833, at least a portion of the second spring 833 abuts against an inner wall 8351 of the second sleeve 835, an end of the second sleeve 835 facing away from the second needle 831 is fixedly connected with the cover plate 71, and an end of the second needle 831 facing away from the second spring 833 abuts against the second slider 45.

In the present embodiment, as shown in fig. 6, the first elastic element 81 and the second elastic element 83 are symmetrically disposed relative to the second slider 45, that is, the first elastic element 81 and the second elastic element 83 are disposed right above and right below the second slider 45, the second slider 45 is disposed between the first elastic element 81 and the second elastic element 83, and a connection line between the first elastic element 81 and the second elastic element 83 is parallel to the second direction (the Z direction shown in fig. 5), so that the lens carrier 41 is not easily deformed, the yield of the driving structure 100 is improved, and the connection between the first elastic element 81 and the second elastic element 83 and the second slider 45 is more stable.

It is understood that the first elastic element 81 and the second elastic element 83 are not limited to be symmetrically disposed with respect to the second slider 45, for example, the first elastic element 81 and the second elastic element 83 may also be, but not limited to be, symmetrically disposed with respect to the lens carrier 41.

In the prior art, spring plates are usually adopted above and below a lens carrier, the thickness of the spring plates is thin (for example, 0.05mm), and the spring plates cannot be made thick in order to meet the linear motion of a driving structure, so the process difficulty is high, and the deformation problem is frequent. In this application, the first elastic element 81 includes the first sleeve 815 sleeved on the first spring 813, and the second elastic element 83 includes the second sleeve 835 sleeved on the second spring 833, so that the first elastic element 81 and the second elastic element 83 have high strength, good toughness, are not easily deformed, and can well bear the lens carrier 41 and balance the moment. Secondly, the first elastic member 81 and the second elastic member 83 can reduce the process difficulty, and improve the yield of the driving structure 100. Finally, the first elastic element 81 and the second elastic element 83 are needle-shaped structures, which occupy less space in the housing 70 compared to the sheet-shaped structure of the spring plate in the prior art, and facilitate the driving structure 100 to achieve a small-sized, light-weight design.

It is understood that the number of the first elastic members 81 and the second elastic members 83 shown in fig. 2 is merely exemplary and is not a limitation of the present application, and one or more of the first elastic members 81 or the second elastic members 83 may be provided.

It is to be understood that in the modified embodiment, one of the first elastic member 81 and the second elastic member 83 may be omitted. Thus, the weight and volume of the driving structure 100, the lens module 200 and the electronic device 300 can be reduced, thereby facilitating the miniaturization and the light and thin design thereof, and reducing the manufacturing cost.

As shown in fig. 3, the driving structure 100 provided by the present application has a rectangular parallelepiped external shape, has high structural versatility, and can be flexibly applied to various scenes. It is understood that the outer shape of the driving structure 100 is not limited.

Second embodiment

Referring to fig. 12, fig. 12 is a schematic perspective view illustrating a first movable assembly and a second movable assembly according to a second embodiment of the present application.

Unlike the first embodiment, in the present embodiment, the first guide portion 231 of the first movable assembly 230 further includes a groove 2313, the first slider 243 of the second movable assembly 240 includes a protrusion 2433 matched with the groove 2313, the groove 2313 is parallel to the protrusion 2433, and the groove 2313 and the protrusion 2433 are both inclined with respect to the second direction (Z direction shown in fig. 12), and the protrusion 2433 is movably received in the groove 2313 and can slide along the groove 2313. In the present embodiment, the groove 2313 and the protrusion 2433 are each in a rectangular parallelepiped shape, and are better fitted. In this embodiment, the groove 2313 and the protrusion 2433 increase the contact area between the first movable element 230 and the second movable element 240, so that the sliding connection between the first movable element 230 and the second movable element 240 is more stable.

It is understood that the shape of the groove 2313 is not limited, and the shape of the groove 2313 may be, but not limited to, a trapezoidal shape, a triangular prism shape, a cylindrical shape, a semi-cylindrical shape, or the like.

It is understood that, without limiting the first guide portion 231 to include the groove 2313, the first slider 243 includes the protrusion 2433 cooperating with the groove 2313, and it suffices that the first guide portion 231 provides a guide for the first slider 243. For example, in the modified embodiment, the first guide portion 231 may further include, but is not limited to, a guide rod, the first slider 243 is movably sleeved on the guide rod, and the first slider 243 can slide along the guide rod.

Third embodiment

Referring to fig. 13 and 14, fig. 13 is a schematic perspective view of a first movable assembly and a second movable assembly provided in a third embodiment of the present application, and fig. 14 is a schematic perspective view of the first movable assembly and the second movable assembly provided in the third embodiment of the present application.

Unlike the second embodiment of the present application, in the present embodiment, the recessed groove 339 and the protruding portion 349 are both trapezoidal, so that the first movable assembly 330 and the second movable assembly 340 can be easily mounted and dismounted, and the mounting efficiency can be improved.

It is to be understood that the shape of the groove 339 is not limited, and the shape of the groove 339 may be, but not limited to, a rectangular parallelepiped, a triangular prism, a cylindrical cylinder, a semi-cylindrical cylinder, or the like.

Fourth embodiment

Referring to fig. 15, fig. 15 is a schematic perspective view illustrating a first movable assembly and a second movable assembly according to a fourth embodiment of the present disclosure.

Unlike the first embodiment of the present application, in the present embodiment, the first guide part 436 of the first movable assembly 430 includes a guide rod 4361, the first slider 441 of the second movable assembly 440 includes a guide hole 4412, and the guide rod 4361 is movably inserted into the guide hole 4412 in parallel. The guide hole 4412 and the guide bar 4361 are both disposed obliquely to the second direction (the Z direction as shown in fig. 15).

In this embodiment, the guide hole 4412 and the guide rod 4361 are included, so that the contact area between the first movable assembly 430 and the second movable assembly 440 is increased, and the sliding connection between the first movable assembly 430 and the second movable assembly 440 is more stable.

It is understood that the shape of the guide hole 4412 and the shape of the guide rod 4361 are not limited, and the guide rod 4361 can be slidably connected to the guide hole 4412, for example, in the modified embodiment, the cross sections of the guide rod 4361 and the guide hole 4412 can be, but not limited to, square, triangular, irregular, and the like.

It is to be understood that the first guide part 436 of the first movable assembly 430 is not limited to further include the guide rod 4361, the first slider 441 of the second movable assembly 440 includes the guide hole 4412, and the guide rod 4361 and the guide hole 4412 may be omitted in the modified embodiment.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.

Claims (22)

1. A driving structure is characterized by comprising a fixed part, a first movable assembly, a second movable assembly and a driving part, wherein the first movable assembly is connected with the fixed part in a sliding mode along a first direction, the first movable assembly is provided with a first guide part which is arranged in an inclined mode relative to a second direction, the first direction is orthogonal to the second direction, and the second movable assembly is connected with the first guide part in a sliding mode; the driving part is used for driving the first movable assembly to move along the first direction so as to drive the second movable assembly to move along the first guide part in the second direction.

2. The drive configuration of claim 1, wherein said first guide portion includes a ramp surface disposed obliquely to said second direction, at least a portion of said second movable element being slidably coupled to said ramp surface.

3. The drive structure as claimed in claim 1, wherein said first guide portion includes a guide groove disposed obliquely to said second direction, and at least a part of said second movable member is movably received in said guide groove.

4. The driving structure as claimed in claim 1, wherein the first guide portion includes a guide rod disposed obliquely to the second direction, and at least a portion of the second movable member is movably sleeved on the guide rod.

5. The drive structure according to claim 1, wherein a second guide portion extending in the first direction is provided on the fixed member, and the first movable member is slidably connected to the second guide portion in the first direction.

6. The drive configuration of claim 5, wherein the drive configuration includes a lubricant applied to the second guide portion.

7. The drive configuration as claimed in claim 5, wherein said second guide portion is a guide groove extending in said first direction, said first movable member being movably received in said guide groove.

8. The driving structure as claimed in claim 5, wherein the second guiding portion is a guiding rod extending along the first direction, and the first movable member is movably sleeved on the guiding rod.

9. The driving structure as claimed in claim 1, wherein the second movable assembly includes a first slider and a lens carrier fixedly connected, the first slider being slidably connected to the first guide.

10. The drive structure according to claim 9, wherein the first slider and/or the first guide portion are made of a graphite alloy.

11. The driving structure as claimed in claim 1, further comprising a housing, wherein the housing includes a cover plate and a side plate fixedly connected to each other, the cover plate and the side plate enclose an accommodating space, the first movable assembly, the second movable assembly and the driving member are accommodated in the accommodating space, and the fixing member is fixed to a side of the side plate facing away from the cover plate so as to cover the accommodating space.

12. The drive structure of claim 11, wherein a third guide portion extending in the second direction is provided on the side plate, and the third guide portion is slidably connected to the second movable assembly in the second direction.

13. The drive configuration of claim 11, further comprising a plurality of resilient elements disposed between the second movable assembly and the stationary component and/or disposed between the second movable assembly and the cover plate.

14. The driving structure as claimed in claim 13, wherein said elastic element comprises a first elastic member, said first elastic member comprises a first needle, a first spring and a first sleeve, said first spring is fixedly connected between said first needle and said fixed member, said first sleeve is sleeved on said first spring, at least a portion of said first spring abuts against an inner wall of said first sleeve, an end of said first sleeve facing away from said first needle is fixedly connected with said fixed member, and an end of said first needle facing away from said first spring abuts against said second movable member.

15. The driving structure of claim 14, wherein the resilient element further comprises a second resilient member, the second resilient member comprises a second needle, a second spring and a second sleeve, the second spring is fixedly connected between the second needle and the cover plate, the second sleeve is sleeved on the second spring, at least a portion of the second spring abuts against an inner wall of the second sleeve, an end of the second sleeve facing away from the second needle is fixedly connected to the cover plate, and an end of the second needle facing away from the second spring abuts against the second movable assembly.

16. The drive configuration of claim 15, wherein said first resilient member and said second resilient member are symmetrically disposed with respect to said second movable element.

17. The drive arrangement of claim 1, further comprising a magnet, wherein the drive component comprises a solenoid, wherein one of the magnet and the solenoid is fixedly connected to the fixed component, wherein the other of the magnet and the solenoid is fixedly connected to the first movable component, and wherein interaction between a magnetic field generated by energizing the solenoid and a magnetic field of the magnet moves the first movable component relative to the fixed component in the first direction.

18. The drive structure of claim 17, wherein the solenoid includes a coil having a passage extending through the coil and a core fixedly disposed through the passage, the coil being energized to generate a magnetic field that covers the magnet and moves the magnet relative to the coil.

19. The drive configuration of claim 1, wherein said drive component comprises a push rod fixedly connected to said first movable assembly.

20. The drive configuration of claim 1, wherein said drive component comprises a piezoelectric drive.

21. A lens module, comprising a lens and the driving structure as claimed in any one of claims 1 to 20, wherein the lens is fixedly connected to the second movable element.

22. An electronic device comprising a processor, an image sensor and a lens module as claimed in claim 21, wherein the processor and the image sensor are electrically connected to the driving structure, the image sensor is configured to receive light input from the lens and convert the light into image information, and the processor is configured to control the driving structure to drive the lens to move.

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