Lens Module and Electronic Device

Abstract

The present invention relates to the technical field of optical systems, and more particularly to lens modules and electronic devices. **Solution**: The lens module includes a mounting structure, a support frame, a lens barrel, and an adjustment mechanism. The upper shell of the mounting structure includes a top cover portion and a side wall portion. The side wall portion is connected to the base. The support frame is suspended inside the mounting structure. The lens barrel is suspended inside the support frame. The adjustment mechanism includes a focus component, a shake correction component, and a plurality of sets of elastic sheet structures. The focus component includes a focus coil, a focus magnet, and a focus circuit board. The focus magnet is connected to the side facing the focus coil of the top cover portion. The focus circuit board is provided on the lens barrel and is electrically connected to the plurality of sets of elastic sheet structures respectively. The elastic sheet structures are electrically connected to the focus component, the shake correction component, and the base respectively. In the lens module of this embodiment, by installing the focus magnet inside the top cover portion of the upper shell, the internal space of the upper shell can be utilized to the maximum extent, and the structure between the lens barrel, the focus component, and the upper shell can be made more compact, thereby making the overall structure of the lens module more compact.

Description

Technical Field

[0001] The present invention relates to the technical field of optical systems, and particularly to lens modules and electronic devices.

Background Art

[0002] With the development of camera technology, lens modules equipped with an autofocus function (AF: Auto Focus) and an optical image stabilization function (OIS: Optical Image Stabilizer) are widely used in electronic devices such as tablets and smartphones.

[0003] In conventional lens modules, in order to realize the autofocus function and the optical image stabilization function, usually a single coil and a magnet are required. In actual applications, it is necessary to combine multiple sets of coils and multiple sets of magnets for use in the lens module. The number of required components is large, leading to an increase in the volume and weight of the entire module. When applied to an electronic device, the volume of the electronic device will increase. In addition, when multiple components are mounted on a movable part, the total mass of the movable part increases, directly affecting the accuracy and stability of focusing and shake correction, and directly affecting the performance of the lens module. Moreover, the circuit structure in conventional lens modules is complex. Since mainly each component in the lens module needs to be connected via complex wiring, not only does the internal structure of the lens module become complex, but also a problem of affecting the movement of the movable part is likely to occur.

[0004] How to miniaturize the lens module while ensuring the functions of the lens module is an important issue that needs to be urgently solved in the industry.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The present invention provides a lens module and an electronic device for solving the problem that in a conventional lens module, when the number of components is large, the volume and mass increase, the volume of the entire electronic device increases, and the performance of the lens module is affected.

Means for Solving the Problem

[0006] The present invention provides a lens module, comprising a mounting structure, a support frame, a lens barrel, and an adjustment mechanism, wherein the mounting structure includes an upper shell and a base, the upper shell includes a top cover portion and a side wall portion, the side wall portion is connected to the base, the top cover portion is installed on the side of the side wall portion away from the base, and the base is used for being electrically connected to an external circuit, the support frame is suspended inside the mounting structure, the lens barrel is suspended inside the support frame, the adjustment mechanism includes a focus component, a shake correction component, a plurality of sets of elastic sheet structures, and suspension wires. The focus component includes a focus coil, a focus magnet, and a focus circuit board. The focus coil is wound around and installed on the lens barrel. The focus magnet is connected to the side of the top cover portion facing the focus coil. The shake correction component is used for driving the support frame to move relative to the base. The elastic sheet structure is respectively connected to the support frame and the lens barrel. The suspension wires are respectively connected and electrically connected to the support frame and the base. The focus circuit board is provided on the lens barrel. The elastic sheet structure is electrically connected to the focus circuit board, the shake correction component, and the support frame respectively.

[0007] According to one embodiment of the present invention, the elastic sheet structure includes an upper elastic sheet and a lower elastic sheet. The upper elastic sheet and the lower elastic sheet are respectively installed on opposite sides of the support frame. The upper elastic sheet is connected to the support frame and the lens barrel respectively, and the lower elastic sheet is connected to the support frame and the lens barrel respectively. The support frame is electrically connected to the focus coil, and the suspension wire is connected and electrically connected to the upper elastic sheet and the base respectively.

[0008] According to one embodiment of the present invention, the upper elastic sheet includes at least one first flexible arm and at least two first connection parts. Here, the two first connection parts are respectively connected to the lens barrel and the support frame. The first flexible arm is respectively connected to the plurality of first connection parts. Opposite ends of the suspension wire are respectively connected and electrically connected to the first connection part and the base.

[0009] According to one embodiment of the present invention, the lower elastic sheet includes a flexible connection arm and at least two reset fixing parts. At least two of the reset fixing parts are respectively connected to the flexible connection arm. Here, the two reset fixing parts are respectively connected to the lens barrel and the support frame.

[0010] According to one embodiment of the present invention, the shake correction component includes a shake correction coil, a shake correction magnet, and a shake correction circuit board. A receiving groove is provided on the base. The shake correction magnet is received in the receiving groove and installed corresponding to the shake correction coil. The shake correction circuit board is adhered to the side of the support frame facing the shake correction magnet, and the shake correction coil is provided on the side of the shake correction circuit board facing the shake correction magnet.

[0011] According to one embodiment of the present invention, the support frame includes a frame body and a frame insert fitted into the frame body, and the frame inserts are electrically connected to the elastic sheet structure and the shake correction circuit board, respectively.

[0012] According to one embodiment of the present invention, the focus component further includes a focus IC module, the focus IC module is connected to the focus circuit board, and the focus IC module is electrically connected to the elastic sheet structure. The adjustment mechanism further includes a sensing magnet provided on the support frame. The focus IC module magnetically cooperates with the sensing magnet and the focus IC module is electrically connected to the focus coil so that the focus IC module forms a closed-loop control circuit.

[0013] According to one embodiment of the present invention, a mounting groove is provided on the outer peripheral wall of the lens barrel. The focus coil is wound around the lens barrel and installed in the mounting groove. A relief cavity is formed on the side of the lens barrel facing the focus magnet, and the focus magnet is suspended in the relief cavity.

[0014] The present invention further provides an electronic device, a host, and the lens module according to any one of the above items provided in the host.

Advantages of the Invention

[0015] When the embodiment of the present invention is implemented, the following beneficial effects can be obtained. In the lens module of the present embodiment, by installing the focus magnet inside the top cover portion of the upper shell, the internal space of the upper shell is utilized to the maximum extent, and the structure among the lens barrel, the focus component, and the upper shell can be made more compact, thereby making the overall structure of the lens module more compact. And by adopting the structure that the elastic sheet structure is electrically connected to the focus component and the shake correction component, the power supply and signal transmission functions of the lens module can be realized, and the purpose of optimizing the internal structure of the lens module can be further achieved. Also, by installing the focus magnet on the mounting structure (corresponding to the fixing member), compared with the method of installing the magnet on the movable part in the conventional lens module, the overall mass of the movable part can be effectively reduced, the magnitude of the driving force required when the focus component is moving can be reduced, the movement accuracy can be improved, and the problem that the focus magnet generates an attractive force or a repulsive force on other members in the lens module when the focus component and the shake correction component are moving can be avoided, and the control accuracy of the lens module can be improved.

Brief Description of the Drawings

[0016] To more clearly explain the embodiments of the present invention or the technical concepts of the prior art, the drawings necessary for the description of the embodiments or the prior art are briefly introduced below. Of course, these are only some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without creative efforts. Here,

Figure 1

Figure 2

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Figure 4

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Figure 6

Figure 7

Figure 8

Figure 9

Explanation of Reference Numerals

[0017] 10 Lens module 100 Mounting structure 110 Upper shell 111 Top cover part 112 Side wall part 120 Base 121 Receiving groove 122 Base insert 200 Support frame 210 Frame body 211 Movable hole 212 Second relief groove 213 Third relief groove 220 Frame insert 221 Insert connection part 222 Insert fixing part 223 Insert intermediate part 230 Fixed column 300 Lens barrel 310 First relief groove 320 Fourth relief groove 330 Mounting groove 340 Relief cavity 400 Adjustment mechanism 410 Focus component 411 Focus coil 412 Focus magnet 413 Focus circuit board 414 Focus IC Module 420 Handshake Correction Component 421 Handshake Correction Coil 422 Handshake Correction Magnet 423 Handshake Correction Circuit Board 424 Handshake Correction IC Module 430 Elastic Sheet Structure 431 Upper Elastic Sheet 4311 First Flexible Arm 4312 First Connection Part 441 Second Flexible Arm 4314 Second Connection Part 432 Lower Elastic Sheet 4321 Flexible Connection Arm 4322 Reset Fixing Part 440 Suspension Wire 441 Damping Filling Material 450 Position Sensing Component 451 Sensing Magnet 452 Magnetic Sensor

Mode for Carrying Out the Invention

[0018] In order to make the object, technical idea and advantages of the present invention clearer, the technical idea of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Of course, the described embodiments are only a part, not all of the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention are included in the protection scope of the present invention.

[0019] Referring to FIGS. 1 to 8, an embodiment of the present invention provides a lens module 10 including a mounting structure 100, a support frame 200, a lens barrel 300, and an adjustment mechanism 400. The mounting structure 100 includes an upper shell 110 and a base 120. The upper shell 110 includes a top cover portion 111 and a side wall portion 112. The side wall portion 112 is connected to the base 120, and the top cover portion 111 is installed on the side away from the base 120 of the side wall portion 112. The base 120 is used for being electrically connected to an external circuit. The support frame 200 is suspended inside the mounting structure 100. The lens barrel 300 is suspended inside the support frame 200. The adjustment mechanism 400 includes a focus component 410, a shake correction component 420, a plurality of sets of elastic sheet structures 430, and a suspension wire 440. The focus component 410 includes a focus coil 411, a focus magnet 412, and a focus circuit board 413. The focus coil 411 is wound around and installed on the lens barrel 300. The focus magnet 412 is connected to the side of the top cover portion 111 facing the focus coil 411. The shake correction component 420 is respectively connected to the base 120 and the support frame 200 and is used for driving the support frame 200 to move relative to the base 120. The elastic sheet structure 430 is respectively connected to the support frame 200 and the lens barrel 300. The suspension wire 440 is respectively connected and electrically connected to the support frame 200 and the base 200. The focus circuit board 413 is provided on the lens barrel 300. The elastic sheet structure 430 is respectively electrically connected to the focus circuit board 413, the shake correction component, and the support frame 200.

[0020] In the lens module 10 of the present embodiment, by installing the focus magnet 412 inside the top cover portion 111 of the upper shell 110, the internal space of the upper shell 110 can be utilized to the maximum extent, and the structure among the lens barrel 300, the focus component 410, and the upper shell 110 can be made more compact. As a result, the overall structure of the lens module 10 can be made more compact, and it can be easily mounted on an electronic device. And by adopting the structure that the elastic sheet structure 430 is electrically connected to the focus component 410 and the shake correction component 420, the power supply and signal transmission functions of the lens module 10 can be realized, and the purpose of optimizing the internal structure of the lens module 10 can be further achieved.

[0021] Also, by installing the focus magnet 412 on the upper shell 110 (corresponding to the fixed member) of the mounting structure 100, compared with the conventional lens module 10 where the magnet is installed on the movable part, the overall mass of the movable part can be effectively reduced, the magnitude of the driving force required when the focus component 410 is moving can be reduced, the movement accuracy can be improved, and the problem that the focus magnet 412 generates an attractive force or a repulsive force on other members in the lens module 10 when the focus component 410 and the shake correction component are moving can be avoided, and the control accuracy of the lens module 10 can be improved.

[0022] Referring to FIGS. 1, 3, and 8, in one embodiment, the support frame 200, the focus coil 411, and the focus magnet 412 are arranged along a direction parallel to the optical axis of the lens barrel 300. A base insert 122 is embedded inside the base 120. The support frame 200 includes a frame body 210 and a frame insert 220. The base insert 122 embedded in the base 120 is connected to an elastic sheet structure 430, and the frame insert 220 embedded in the frame body 210 is connected to the shake correction component 420 and the elastic sheet structure 430 respectively, thereby realizing circuit conduction between the shake correction component 420 and the focus component 410. Moreover, the strength of the entire base 120 and the support frame 200 can be improved, and the overall structure of the base 120 and the support frame 200 can be made more compact. In other embodiments, the base 120 and the support frame 200 can also realize the electrical connection function by adopting external circuits, LDS technology (Laser Direct Structuring), etc., but this is not uniquely limited here.

[0023] Specifically, the focus circuit board 413 is preferably an FPC. As shown in FIG. 4, the focus circuit board 413 is installed so as to surround the opening of the lens barrel 300 and is connected to a plurality of sets of elastic sheet structures 430 respectively. The focus circuit board 413 is electrically connected to the elastic sheet structure 430. In this embodiment, the shake correction circuit board 423 is preferably an FPC. Thereby, the thickness of the shake correction circuit board 423 becomes thinner, and the electrical connection function is realized by electrically connecting the shake correction circuit board 423 to the elastic sheet structure 430. As shown in FIG. 7, the shake correction circuit board 423 is adhered to the bottom of the support frame 200 and installed so as to surround the lens barrel.

[0024] Specifically, referring to FIGS. 2 to 6 and FIG. 8, the elastic sheet structure 430 includes an upper elastic sheet 431. The upper elastic sheet 431 and the shake correction coil 421 are respectively installed on opposite sides in the axial direction of the support frame 200. Specifically, they can be installed on opposite sides of the support frame 200 along the optical axis of the lens barrel 300. The upper elastic sheet 431 is connected to the support frame 200 and the lens barrel 300 respectively. The lower elastic sheet 432 is connected to the support frame 200 and the lens barrel 300. The support frame 200 is electrically connected to the focus coil 411 and the shake correction component 420 respectively. The suspension wire 440 is connected and electrically connected to the upper elastic sheet 431 and the base 120 respectively.

[0025] By installing in this way, when the lens barrel 300 moves relative to the support frame 200 due to the driving action of the shake correction coil 421, the upper elastic sheet 431 can be deformed to drive the lens barrel 300 to return. By installing the suspension wire 440 to be connected to the support frame 200, the support frame 200 can be driven to return relative to the base 120. As a result, the structure of the upper elastic sheet 431 and the support frame 200 can be made more compact, and the structure of the entire lens module 10 can be made compact.

[0026] Specifically, referring to FIG. 5, the upper elastic sheet 431 includes at least one first flexible arm 4311 and at least two first connection parts 4312. Here, the two first connection parts 4312 are respectively connected to the lens barrel 300 and the support frame 200. The first flexible arm 4311 is respectively connected to the plurality of first connection parts 4312. The opposite ends of the suspension wire 440 are respectively connected and electrically connected to the first connection part 4312 and the base 120.

[0027] In this embodiment, the end of the suspension wire 440 can be fixed by welding it to the first connection portion 4312. In order to improve the fixing strength, it is preferable to cover a certain amount of solder on the connection portion between the suspension wire 440 and the first connection portion 4312. When the lens barrel 300 moves relative to the support frame 200, the first flexible arm 4311 can be deformed to store elastic potential energy. After the driving force of the hand shake correction component 420 is removed and / or when the elastic force of the first flexible arm 4311 overcomes the force generated by the vibration of the electronic device, the first flexible arm 4311 can achieve the purpose of driving the lens barrel 300 to return. When a plurality of first flexible arms 4311 are used and connected to the two first connection portions 4312 respectively, the elastic force of the first flexible arm 4311 is improved, thereby improving the return effect by the upper elastic sheet 431. As shown in FIG. 5, in a preferred embodiment, in order to improve the deformation range and return effect of the first flexible arm 4311, the extending path of the first flexible arm 4311 is preferably a curved surrounding structure. Specifically, the number of the upper elastic sheets 431 may be two, three, four or more than four. The plurality of upper elastic sheets 431 are evenly arranged along the circumferential direction of the lens barrel 300. By providing a plurality of upper elastic sheets 431 connected to the lens barrel 300, the anti-vibration effect and reset stability of the hand shake correction component 420 can be improved.

[0028] In some embodiments, the upper elastic sheet 431 is integrally formed with the suspension wire 440.

[0029] By installing in this way, the strength of the entire elastic structure formed by combining the upper elastic sheet 431 and the suspension wire 440 can be increased. At the same time, by combining the two, a more compact structure can be obtained, and the lens module 10 becomes smaller.

[0030] Furthermore, the lens barrel 300 is provided with a first escape groove 310, and the first escape groove 310 is provided on the side facing the first flexible arm 4311 of the lens barrel 300, and at least a part of the orthographic projection of the first flexible arm 4311 on the lens barrel 300 overlaps with the first escape groove 310.

[0031] In this embodiment, by providing the first escape groove 310 in the lens barrel 300 and cooperating with the upper elastic sheet 431, when the lens barrel 300 moves and deforms relative to the support frame 200, the first escape groove 310 can avoid the first flexible arm 4311. Thereby, the collision between the lens barrel 300 and the upper elastic sheet 431 is prevented, the durability of the upper elastic sheet 431 is improved, and the structure between the upper elastic sheet 431, the support frame 200 and the lens barrel 300 becomes more compact.

[0032] In one embodiment, the support frame 200 is provided with a second escape groove 212, and the second escape groove 212 is provided on the side facing the first flexible arm 4311 of the support frame 200, and at least a part of the orthographic projection of the first flexible arm 4311 on the support frame 200 overlaps with the second escape groove 212.

[0033] In this embodiment, by providing the second escape groove 212 in the support frame 200 and cooperating with the upper elastic sheet 431, when the lens barrel 300 moves relative to the support frame 200, the second escape groove 212 can avoid the first flexible arm 4311, and the collision between the support frame 200 and the upper elastic sheet 431 is prevented. Thereby, the durability of the upper elastic sheet 431 is improved, and the structure between the upper elastic sheet 431 and the support frame 200 becomes more compact.

[0034] Furthermore, as shown in FIGS. 5 and 6, the upper elastic sheet 431 includes a second flexible arm 441 and a second connection portion 4314. The second flexible arm 441 is connected to the second connection portion 4314 and a first connection portion 4312 respectively. One end of the suspension wire 440 far from the base 120 is connected to the second connection portion 4314.

[0035] In this embodiment, in order to improve the fixing strength between the end of the suspension wire 440 and the second connection portion 4314 by welding and fixing them, it is preferable to cover a certain amount of solder on the connection portion between the suspension wire 440 and the second connection portion 4314. When the support frame 200 moves relative to the base 120, the second flexible arm 441 can be deformed to store elastic potential energy. When the driving force of the hand tremor correction component 420 is removed or when the elastic force of the second flexible arm 441 overcomes the force generated by the vibration of the electronic device, the second flexible arm 441 can achieve the purpose of driving the support frame 200 to return, thereby achieving the anti-vibration function. When a plurality of second flexible arms 441 are used to connect to the first connection portion 4312 and the second connection portion 4314 respectively, the elastic force of the second flexible arm 441 can be increased, thereby improving the return effect of the upper elastic sheet 431. In a preferred embodiment, in order to improve the deformation range and return effect of the second flexible arm 441, the extending path of the second flexible arm 441 is preferably a curved surrounding structure.

[0036] Referring to FIG. 6, in one embodiment, the support frame 200 is provided with a third escape groove 213. The third escape groove 213 is provided on the side of the support frame 200 facing the second flexible arm 441, and at least a part of the orthographic projection of the second flexible arm 441 on the support frame 200 overlaps with the third escape groove 213.

[0037] In this embodiment, a third escape groove 213 is provided in the support frame 200 to cooperate with the upper elastic sheet 431. When the lens barrel 300 moves relative to the support frame 200, the third escape groove 213 can avoid the first flexible arm 4311. Thereby, the collision between the support frame 200 and the upper elastic sheet 431 is prevented, the durability of the upper elastic sheet 431 is improved, and the structure between the upper elastic sheet 431 and the support frame 200 becomes more compact.

[0038] Furthermore, referring to FIGS. 3, 5, 7, and 8, the elastic sheet structure 430 further includes a lower elastic sheet 432. The lower elastic sheet 432 is connected to the lens barrel 300 and the support frame 200 respectively, and the lower elastic sheet 432 is provided on the side far from the upper elastic sheet 431 of the support frame 200.

[0039] With such a configuration, when the lens barrel 300 moves relative to the support frame 200, the two are connected through the installed lower elastic sheet 432. The lower elastic sheet 432 can apply an elastic driving force for resetting to the lens barrel 300, and can also buffer the vibration of the lens barrel 300 relative to the support frame 200.

[0040] Specifically, as shown in FIG. 7, the lower elastic sheet 432 includes a flexible connection arm 4321 and at least two reset fixing parts 4322. The at least two reset fixing parts 4322 are respectively connected to the flexible connection arm 4321. Here, the two reset fixing parts 4322 are respectively connected to the lens barrel 300 and the support frame 200.

[0041] In this embodiment, when the lens barrel 300 moves relative to the support frame 200, the flexible connection arm 4321 can deform to store elastic potential energy. When the driving force of the focus component 410 is removed or when the elastic force of the flexible connection arm 4321 overcomes the force generated by the vibration of the electronic device, the flexible connection arm 4321 can achieve the purpose of driving the lens barrel 300 to return. When a plurality of flexible connection arms 4321 are used and connected to the reset fixing part 4322 respectively, the elastic force of the flexible connection arm 4321 can be increased, thereby improving the return effect of the upper elastic sheet 431. As shown in FIG. 7, in a preferred embodiment, in order to improve the deformation range and return effect of the flexible connection arm 4321, the extending path of the flexible connection arm 4321 preferably has a curved surrounding structure. Specifically, the number of the lower elastic sheets 432 may be two, three, four or more than four. The plurality of lower elastic sheets 432 are evenly arranged along the circumferential direction of the lens barrel 300. By providing a plurality of lower elastic sheets 432 respectively connected to the lens barrel 300 and the support frame 200, the focus return effect and reset stability of the focus component 410 can be improved.

[0042] Furthermore, a fourth escape groove 320 is provided in the lens barrel 300. The fourth escape groove 320 is provided on the side facing the flexible connection arm 4321 of the support frame 200, and at least a part of the orthographic projection of the flexible connection arm 4321 on the support frame 200 overlaps with the fourth escape groove 320.

[0043] In this embodiment, a fourth relief groove 320 is provided in the lens barrel 300 and cooperates with the flexible connection arm 4321. When the lens barrel 300 moves relative to the support frame 200, the fourth relief groove 320 can avoid the flexible connection arm 4321. Thereby, the collision between the lens barrel 300 and the upper elastic sheet 431 is prevented, the durability of the upper elastic sheet 431 is improved, and the structure between the upper elastic sheet 431 and the support frame 200 becomes more compact.

[0044] Referring to FIGS. 4 to 6, in one embodiment, a movable hole 211 is provided through the support frame 200, and the suspension wire 440 is installed through the movable hole 211 and is spaced from the inner wall of the movable hole 211.

[0045] By arranging the movable hole 211 to cooperate with the suspension wire 440, on the one hand, it can prevent the lens barrel 300 from colliding with the suspension wire 440 during the deformation process, thereby improving the durability of the suspension wire 440. On the other hand, the combined structure of the suspension wire 440 and the support frame 200 becomes more compact, facilitating the miniaturization design of the lens module 10.

[0046] Furthermore, the upper elastic sheet 431 further includes a damping filler 441, and the damping filler 441 is filled in the movable hole 211 and wraps at least a part of the suspension wire 440.

[0047] By installing in this way, when the suspension wire 440 deforms or displaces relative to the support frame 200, the damping filler 441 provides a damping effect on the suspension wire 440, thereby buffering the relative displacement between the support frame 200, the lens barrel 300, and the base 120.

[0048] Referring to FIGS. 4, 7, and 8, the hand shake correction component 420 includes a hand shake correction coil 421, a hand shake correction magnet 422, and a hand shake correction circuit board 423. The base 120 is provided with a receiving groove 121. The hand shake correction coil 421 is provided at the bottom of the support frame 200. The hand shake correction magnet 422 is received in the receiving groove 121 and is installed corresponding to the hand shake correction coil 421.

[0049] In this embodiment, the number of the hand shake correction coils 421 is at least two, and the two hand shake correction coils 421 cooperate with the two hand shake correction magnets 422 respectively to drive the support frame 200 along the X direction and the Y direction in a plane perpendicular to the optical axis of the lens barrel 300, thereby realizing the hand shake correction function. When the hand shake correction component 420 includes a plurality of hand shake correction coils 421, the plurality of hand shake correction coils 421 can be connected via the hand shake correction circuit board 423.

[0050] In one embodiment, the direction of the magnetic field lines of the hand shake correction coil 421 is directed towards the hand shake correction magnet 422 or away from the hand shake correction magnet 422. At this time, when the hand shake correction coil 421 is energized, the hand shake correction coil 421 generates a magnetic force with the hand shake correction magnet 422, and the hand shake correction component 420 can realize the function of moving the support frame 200 in the X direction and / or the Y direction.

[0051] In addition, in the conventional lens module 10, compared with the method of installing a magnet on a movable part, in the present invention, the hand shake correction magnet 422 is fixed within the base 120 (corresponding to a fixed member), and the focus coil 411 is fixed to the upper shell 110, thereby effectively reducing the mass of the support frame 200 and the lens barrel 300. When the focus component 410 and the hand shake correction component 420 drive the support frame 200 and the lens barrel 300 to move, the driving force required can be reduced, the movement accuracy of the adjustment mechanism 400 can be improved, and at the same time, by installing the hand shake correction magnet 422 within the base 120, the problem that the hand shake correction magnet 422 generates an unnecessary attractive force or repulsive force on other moving members can be avoided, and the control accuracy of the lens module 10 can be improved.

[0052] Specifically, as shown in FIG. 7, the support frame 200 further includes fixed columns 230, the fixed columns 230 are provided at the bottom of the frame body 210, and the hand shake correction coil 421 is wound around the fixed columns 230 and installed.

[0053] In the present embodiment, by arranging the hand shake correction coil 421 in cooperation with the fixed columns 230, the attachment and fixation between the hand shake correction coil 421 and the frame body 210 can be facilitated. Naturally, when the number of fixed columns 230 is two, the hand shake correction coil 421 can be wound around the two fixed columns 230 in sequence and connected, for example, a hand shake correction coil 421 having an arc-shaped or long arc-shaped cross section can be formed.

[0054] Specifically, as shown in FIG. 5, the frame insert 220 includes an insert connection portion 221, an insert fixing portion 222, and an insert intermediate portion 223. The insert connection portion 221 and the insert fixing portion 222 are respectively connected to opposite sides of the insert intermediate portion, and the insert intermediate portion 223 is bent from the insert fixing portion 222 toward the upper elastic sheet 431. The insert connection portion 221 extends at least partially from the frame body 210 and is electrically connected to the upper elastic sheet 431. The insert fixing portion 222 is at least partially exposed from the bottom surface of the frame body 210 and is electrically connected to the hand shake correction circuit board 423. Therefore, circuit conduction between the focus component 410, the hand shake correction component 420, the elastic sheet structure 430, and the base 120 can be realized.

[0055] In one embodiment, the base 120 has four base inserts 122, and the four base inserts 122 are electrically connected to four sets of hand shake correction coils 421 and focus coils 411 via four sets of elastic sheet structures 430. In this embodiment, the ICs of the two hand shake correction coils 421 of the focus component 410 and the hand shake correction component 420 are respectively connected in parallel and connected to the four base inserts 122. Two of the four base inserts 122 are used for power supply (VCC) and ground (GND), and the other two base inserts 122 are used to transmit control signals (including but not limited to analog signals and digital signals) to the two hand shake correction coils 421 and the focus coil 411 respectively. At this time, the base 120 can be turned on by an external control circuit via the four base inserts 122, and because the overall structure is compact, it is easy to mount the lens module 10 on an electronic device.

[0056] As shown in FIGS. 4 and 8, the focus component 410 further includes a focus IC module 414. The focus IC module 414 is connected to the focus circuit board 413, and the focus IC module 414 is electrically connected to the elastic sheet structure 410. The adjustment mechanism 400 further includes a sensing magnet 451. The sensing magnet 451 is provided on the support frame 200. The focus IC module 414 magnetically cooperates with the sensing magnet 451, and the focus IC module 414 is electrically connected to the focus coil 411. Thus, the focus IC module 414 can form a closed-loop control circuit.

[0057] In this embodiment, the focus IC module 414 includes a power supply IC for controlling the focus coil 411 and a Hall sensor for matching with the sensing magnet 451. By installing in this way, since the power supply IC and the Hall sensor can be combined to form a closed-loop control circuit, the control accuracy of the focus component 410 can be improved, the integration degree of the focus IC module 414 in the focus component 410 can be improved, and the structural compactness of the lens module 10 can be improved.

[0058] In some embodiments, as shown in FIG. 4, the adjustment mechanism 400 further includes a position sensing component 450. The position sensor signal is connected to the base 120, and the position sensor is used to obtain the relative position between the lens barrel 300 and the support frame 200.

[0059] In this embodiment, the position sensing component 450 is installed independently and includes a sensing magnet 451 and a magnetic sensor 452. The sensing magnet 451 and the magnetic sensor 452 cooperate magnetically, and either one of the sensing magnet 451 and the magnetic sensor 452 is provided on the lens barrel 300, and the other of the sensing magnet 451 and the magnetic sensor 452 is provided on the support frame 200. Of course, in this embodiment, in order to realize the functions of controlling and position detecting for the focus coil 411, it is necessary to install a power supply IC corresponding to the focus coil 411 independently in the focus component 410.

[0060] By installing in this way, when the lens barrel 300 moves relative to the support frame 200, the magnetic sensor 452 acquires the change of the magnetic signal of the sensing magnet 451 to determine the relative position between the lens barrel 300 and the support frame 200, thereby realizing the position feedback function of the adjustment mechanism 400. Specifically, the magnetic sensor 452 may be a Hall sensor. In other embodiments, the position sensing component 450 may be an infrared sensor or other types of position sensors, but this is not uniquely limited here.

[0061] As shown in FIGS. 4 and 8, the shake correction component 420 further includes a shake correction IC module 424. The shake correction IC module 424 is connected to the shake correction circuit board 423 and installed corresponding to the shake correction magnet 422, and the shake correction IC module 424 is electrically connected to the shake correction coil 421.

[0062] In this embodiment, the hand shake correction IC module 424 includes a power supply IC for controlling the hand shake correction coil 421 and a Hall sensor for aligning with the sensing magnet 451. By arranging them in this way, a closed-loop control circuit can be formed by combining the power supply IC and the Hall sensor, so that the control accuracy of the focus component 410 can be improved, the integration degree of the hand shake correction IC module 424 in the focus component 410 can be improved, and the structural compactness of the lens module 10 can be improved.

[0063] Specifically, the number of the hand shake correction IC modules 424 may be two sets, and each may cooperate with two hand shake correction magnets 422, thereby controlling the position between the support frame 200 and the base 120 in the X direction and the Y direction perpendicular to the optical axis of the lens barrel 300, and realizing the hand shake correction function.

[0064] In a preferred embodiment, a hole corresponding to the hand shake correction IC module 424 may be formed on the side of the support frame 200 facing the hand shake correction circuit board 423, and the hand shake correction IC module 424 is accommodated in this hole, thereby improving the compactness of the combination between the hand shake correction circuit board 423 and the support frame 200.

[0065] Specifically, as shown in FIGS. 4 and 8, a mounting groove 330 is provided on the outer peripheral wall of the lens barrel 300, and the focus coil 411 is wound around the lens barrel 300 and installed in the mounting groove 330.

[0066] By providing the mounting groove 330 on the lens barrel 300 and cooperating with the focus coil 411, the mounting groove 330 can position the mounting of the focus coil 411, thereby improving the installation convenience and mounting accuracy of the focus coil 411.

[0067] Furthermore, as shown in FIGS. 3 and 8, a relief cavity 340 is formed on the side of the focus magnet 412 of the lens barrel 300, and the focus magnet 412 is suspended in the relief cavity 340.

[0068] By arranging in this way, when the lens barrel 300 and the support frame 200 move relative to the mounting structure 100, the focus magnet 412 can be received in the relief cavity 340 of the lens barrel 300, and the relief cavity 340 can avoid the focus magnet 412. Thereby, the collision between the focus magnet 412 and the lens barrel 300 can be prevented, and the smooth adjustment and durability of the adjustment mechanism 400 can be ensured.

[0069] Specifically, as shown in FIGS. 3 to 7 and 9, in this embodiment, the suspension wires 440 on the upper elastic sheet 431 are electrically connected to the upper elastic sheet 431 and the base insert 122 on the base 120 respectively, and are electrically connected to an external circuit via the base insert 122. The upper elastic sheet 431 is electrically connected to the focus circuit board 413 and the frame insert 220 on the support frame 200 respectively. One end of the frame insert 220 away from the upper elastic sheet 431 is electrically connected to the shake correction circuit board 423. In this case, the shake correction circuit board 423 is connected to a plurality of shake correction coils 421 respectively, and the shake correction adjustment function of the shake correction component 420 can be realized. The focus circuit board 413 is electrically connected to a plurality of sets of upper elastic sheets 431 respectively and then electrically connected to the focus coil 411, so that an electrical connection circuit of the lens module 10 can be formed, the overall structure becomes compact, and the arrangement of the lens module 10 on the electronic device becomes easy.

[0070] In addition, the present invention provides an electronic device including a host and the lens module 10 in any of the above embodiments, and the lens module 10 is provided in the host.

[0071] In the electronic device of the present embodiment, by installing the lens module 10 of any of the above embodiments, in the lens module 10, by installing the focus magnet 412 inside the top cover portion 111 of the upper shell 110, the internal space of the upper shell 110 is utilized to the maximum extent, so that the structure among the lens barrel 300, the focus component 410 and the upper shell 110 can be made more compact. As a result, the overall structure of the lens module 10 becomes more compact, and it becomes easier to mount on the electronic device. And, by adopting the fact that the elastic sheet structure 430 is electrically connected to the focus component 410 and the shake correction component 420, the power supply and signal transmission functions of the lens module 10 can be realized, and the purpose of optimizing the internal structure of the lens module 10 is further achieved. Specifically, the electronic device includes, but is not limited to, tablets and smartphones.

[0072] In the description of the embodiments of the present invention, the directions and positional relationships indicated by terms such as "center", "longitudinal direction", "lateral direction", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the directions and positional relationships shown in the drawings. These are merely for facilitating the description of the embodiments of the present invention and simplifying the description, and do not indicate or suggest that the referred device or element must have a specific direction and be constructed and operated in a specific direction. Therefore, it cannot be understood as limiting the embodiments of the present invention. Furthermore, the terms "first", "second", "third" are used only for the purpose of description and cannot be understood as indicating or suggesting relative importance.

[0073] In the description of the embodiments of the present invention, it should be noted that the terms "continuous" and "connected" should be understood in a broad sense unless otherwise specified and limited. For example, the meaning of fixed connection can be either a removable connection, an integral connection, a mechanical connection or an electrical connection, a direct connection or an indirect connection through an intermediate medium. A person skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention in a specific situation.

[0074] In the embodiments of the present invention, unless otherwise specified and limited, the meaning of "above" or "below" of the first feature with respect to the second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in contact through an intermediate medium. Further, the terms "above", "upward direction", and "upper surface" where the first feature is above the second feature may mean that the first feature is directly above or obliquely above the second feature, or may simply mean that the horizontal level of the first feature is higher than that of the second feature. The terms "below", "downward direction", and "lower surface" where the first feature is below the second feature may mean that the first feature is directly below or obliquely below the second feature, or may simply mean that the horizontal level of the first feature is lower than that of the second feature.

[0075] In the description of this specification, descriptions such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in relation to the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. And the specific features, structures, materials, or characteristics described can be combined in any suitable way in any one or more embodiments or examples. Also, a person skilled in the art can combine different embodiments or examples described in this specification and the features of different embodiments or examples as long as they do not conflict with each other.

[0076] Finally, it should be noted that the above embodiments are only used to explain the technical concept of the present invention and do not limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical concept described in the foregoing embodiments or equivalently replace some of the technical features, and these modifications or replacements do not deviate from the essence of the corresponding technical concept from the spirit and scope of the technical concept of each embodiment of the present invention.

Claims

1. A lens module, comprising: a mounting structure, a support frame, a lens barrel, and an adjustment mechanism, wherein the mounting structure includes an upper shell and a base, the upper shell includes a top cover portion and a side wall portion, the side wall portion is connected to the base, the top cover portion is installed on the side of the side wall portion away from the base, and the base is used for being electrically connected to an external circuit; the support frame is suspended inside the mounting structure; the lens barrel is suspended inside the support frame; the adjustment mechanism includes a focus component, a shake correction component, a plurality of sets of elastic sheet structures, and suspension wires, the focus component includes a focus coil, a focus magnet, and a focus circuit board, the focus coil is wound around and installed on the lens barrel, the focus magnet is connected to the side of the top cover portion facing the focus coil, the shake correction component is used for driving the support frame to move relative to the base, the elastic sheet structures are respectively connected to the support frame and the lens barrel, the suspension wires are respectively connected and electrically connected to the support frame and the base, the focus circuit board is provided on the lens barrel, and the elastic sheet structures are respectively electrically connected to the focus circuit board, the shake correction component, and the support frame.

2. The lens module according to claim 1, wherein the elastic sheet structure includes an upper elastic sheet and a lower elastic sheet, the upper elastic sheet and the lower elastic sheet are respectively installed on opposite sides of the support frame, the upper elastic sheet is respectively connected to the support frame and the lens barrel, the lower elastic sheet is respectively connected to the support frame and the lens barrel, the support frame is electrically connected to the focus coil, and the suspension wires are respectively connected and electrically connected to the upper elastic sheet and the base.

3. The upper elastic sheet includes at least one first flexible arm and at least two first connection parts. Here, the two first connection parts are respectively connected to the lens barrel and the support frame. The first flexible arm is respectively connected to the plurality of first connection parts. Opposite ends of the suspension wire are respectively connected and electrically connected to the first connection part and the base. The lens module according to claim 2, characterized in that.

4. The lower elastic sheet includes a flexible connection arm and at least two reset fixing parts. At least two of the reset fixing parts are respectively connected to the flexible connection arm. Here, the two reset fixing parts are respectively connected to the lens barrel and the support frame. The lens module according to claim 2, characterized in that.

5. The shake correction component includes a shake correction coil, a shake correction magnet, and a shake correction circuit board. A housing groove is provided in the base. The shake correction magnet is housed in the housing groove and installed corresponding to the shake correction coil. The shake correction circuit board is adhered to the side of the support frame facing the shake correction magnet. The shake correction coil is provided on the side of the shake correction circuit board facing the shake correction magnet. The lens module according to claim 1, characterized in that.

6. The support frame includes a frame body and a frame insert fitted in the frame body. The frame insert is electrically connected to the elastic sheet structure and the shake correction circuit board respectively. The lens module according to claim 5, characterized in that.

7. The focus component further includes a focus IC module. The focus IC module is connected to the focus circuit board, and the focus IC module is electrically connected to the elastic sheet structure. The adjustment mechanism further includes a sensing magnet. The sensing magnet is provided on the support frame. The focus IC module magnetically cooperates with the sensing magnet and the focus IC module is electrically connected to the focus coil so that the focus IC module forms a closed-loop control circuit. The lens module according to claim 1, characterized in that.

8. An attachment groove is provided on the outer peripheral wall of the lens barrel, the focus coil is wound around the lens barrel and installed in the attachment groove, and a relief cavity is formed on the side of the lens barrel facing the focus magnet, and the focus magnet is suspended in the relief cavity. The lens module according to claim 1, characterized in that.

9. An electronic device comprising a host, and the lens module according to any one of claims 1 to 8 provided in the host, An electronic device characterized by comprising.

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