WO2022142680A1

WO2022142680A1 - Lens drive motor, and camera device and mobile terminal comprising same

Info

Publication number: WO2022142680A1
Application number: PCT/CN2021/127526
Authority: WO
Inventors: 龚高峰; 王建华; 唐利新
Original assignee: 上海比路电子股份有限公司
Priority date: 2020-12-31
Filing date: 2021-10-29
Publication date: 2022-07-07
Also published as: CN112666672A

Abstract

A lens drive motor, and a camera device and a mobile terminal comprising same. The lens drive motor comprises a winding carrier (1), a drive coil (2), an upper spring (3) connectedly provided above the winding carrier (1), and a lower spring (4) connectedly provided below the winding carrier (1), a base (5), a housing (6) covering the base (5), and drive magnets (7) arranged on opposite inner side walls of the housing (6). The lens drive motor further comprises a Hall chip (8) arranged on the base (5), and a Hall magnet (9) arranged on the winding carrier (1). The Hall chip (8) and the Hall magnet (9) are arranged opposite to each other in a Z-axis optical axis direction. A circuit communication structure is embedded inside the base (5). The circuit communication structure may connect the Hall chip (8) to a power supply, and may transmit a current signal of the Hall chip (8) to the lower spring (4), so that the lens drive motor may add current to the drive coil (2) by means of the lower spring (4) and drive the winding carrier (1) to move.

Description

A lens driving motor, a camera device including the same, and a mobile terminal

technical field

The present invention relates to a lens driving motor that can be applied to the camera function of a mobile phone, a camera device including the motor, and a mobile terminal.

Background technique

Autofocus is a widely used feature in cameras. Autofocus can be used in cell phones, handheld and surveillance cameras, still cameras, and video cameras.

The lens drive motor is a device used on the autofocus camera of portable terminal equipment such as mobile phones, and the closed-loop motor is a type of lens drive motor commonly used in the existing. Patent document CN106443949A discloses a lens drive device as a closed-loop motor. Structure, in the lens driving device structure shown in this document, the Hall chip is arranged in a PCB board (flexible printed circuit board), and is assembled to the circuit board through body bonding (bonding), through the internal PCB board. A flexible printed circuit is connected to the power terminal. However, this structure has the disadvantages of high cost and inconvenient assembly.

SUMMARY OF THE INVENTION

The present invention provides a lens driving motor, a camera device including the same, and a mobile terminal. The lens driving motor realizes the function of closed-loop control without a PCB board in the structural design, and the product structure is further simplified, which is beneficial to assembly and low-cost control. .

The technical scheme of the present invention is as follows:

A lens driving motor, comprising a wire-wound carrier for mounting a lens, a drive coil wound on the wire-wound carrier, an upper spring connected and arranged above the wire-wound carrier, and connected and arranged on the wire-wound carrier A lower spring below, a base located under the lower spring, a casing covered on the base, and a driving magnet arranged on the opposite inner sidewall of the casing, the lens driving motor further comprises a The Hall chip of the base and the Hall magnet arranged on the winding carrier, the Hall chip and the Hall magnet are arranged opposite to each other along the Z-axis optical axis direction; wherein, a circuit communication structure is embedded in the base , the circuit communication structure can connect the Hall chip to the power supply, and can transmit the current signal of the Hall chip to the lower spring, and then the lens driving motor can pass the lower spring to the lower spring. The drive coil adds current and drives the winding carrier to move.

As a preferred option of the lens driving motor of the present invention, the circuit connection structure embedded in the base includes a wire line and a wire line, the wire line is used to connect the Hall chip to a power supply, and the The lead line is used for transmitting the current signal of the Hall chip to the lower spring.

As a preferred option of the lens driving motor according to the present invention, the Hall chip is arranged in a notch on the base, and the wire line includes two wires, and the two wires are in the notch. There are two ends in the part, and there are four terminal pins in total, which are used to realize electrical connection with the Hall chip; the lead line includes two sections of leads, and each section of lead is provided with a bridge end in the recessed part, It is used to realize electrical connection with the Hall chip.

As a preference of the lens driving motor of the present invention, the Hall chip is provided with Hall elements SDA\SCL\VCC\VDD\OUT1\OUT2 to realize closed-loop control; wherein, the Hall elements VDD and VSS are respectively It is communicated with the end pins at one end of the two wires, the Hall elements SDA and SCL are respectively communicated with the end pins at the other ends of the two wires, and the Hall elements OUT1 and OUT2 are respectively communicated with the bridge ends of the lead wires of each segment.

As a preferred option of the lens driving motor of the present invention, the lower spring is divided into two sections, and each section has a welding position; the other bridge end of the lead wire of each section is respectively connected with one of the lower springs. The welding phase is welded to achieve circuit connection.

As a preferred option of the lens driving motor of the present invention, each segment of the lower spring is further provided with at least one spot welding port, wherein the spot welding port on one segment is hung on the starting wire of the driving coil. The wire post is communicated with the coil start line of the driving coil, and the spot welding port on the other section is communicated with the coil end line of the driving coil at the end wire hanging post of the driving coil.

As a preferred embodiment of the lens driving motor of the present invention, the Hall magnet is arranged in a notch of the winding carrier.

As a preferred option of the lens driving motor of the present invention, the upper spring has an outer ring and an inner ring, and a spring wire connecting the outer ring and the inner ring, and the spring wire has at least one wrist portion , at least one of the wrists of the spring wire is coated with damping glue, and the damping glue is bridged between two sections of the same spring wire; and/or, the lower spring has connections located at four corners part and the inner ring, and a spring wire connecting the connecting part and the inner ring, the spring wire has at least one wrist part, and at least one wrist part of the spring wire is coated with damping glue, so The damping glue is bridged between two sections of the same spring wire.

As a preferred option of the lens driving motor of the present invention, the outer ring of the upper spring is connected to the inner surface of the housing, and the inner ring of the upper spring is connected to the upper end surface of the winding carrier .

As a preferred form of the lens driving motor of the present invention, the connecting portion of the lower spring is connected to the upper end surface of the base, and the inner ring of the lower spring is connected to the lower end surface of the winding carrier. connect.

The present invention also provides an imaging device provided with any one of the above-mentioned lens driving motors.

The present invention also provides a mobile terminal, which is provided with any one of the above-mentioned lens driving motors.

Compared with the prior art, the beneficial effects of the present invention are as follows:

First, in the structural design, the function of closed-loop control is realized without a PCB board, and the product structure is further simplified, which is conducive to assembly and low-cost control;

Second, precisely control the position of the lens module;

Third, the convergence to the control position of the lens module is faster, which shortens the detection time and improves the user's photographing experience;

Fourth, improve the yield and quality of products and reduce losses;

Fifth, the low-cost closed-loop control function is introduced on the basis of the open-loop motor to achieve fast and precise focusing.

Of course, it is not necessary for any product embodying the present invention to achieve all of the above-described advantages simultaneously.

Description of drawings

FIG. 1 is an exploded view of an implementation structure in an embodiment of the lens driving motor of the present invention;

FIG. 2 is a schematic view after assembly of the implementation structure shown in FIG. 1 in an embodiment of the lens driving motor of the present invention;

3 is a schematic view of an implementation structure of an upper spring in an embodiment of the lens driving motor of the present invention;

4 is a schematic diagram of an implementation structure of a lower spring in an embodiment of the lens driving motor of the present invention;

5 is a schematic view of the base and the lower spring being installed together in an embodiment of the lens drive motor of the present invention, showing a top view of the base;

6 is a schematic diagram of the arrangement of the driving magnet and the upper spring in the housing in the embodiment of the lens driving motor of the present invention;

7 is a schematic diagram of the arrangement of the winding carrier and the lower spring in the embodiment of the lens driving motor of the present invention, showing a bottom view of the winding carrier;

8 is a schematic diagram of the arrangement positions of the Hall magnet and the Hall chip in the embodiment of the lens driving motor of the present invention;

9 is a schematic diagram of a circuit connection structure embedded in the base in an embodiment of the lens driving motor of the present invention;

10 is a schematic diagram of the connection between the Hall chip and the wiring port of the wire line inside the base and the two bridge ends of the wire line in the embodiment of the lens driving motor of the present invention;

11 is a schematic diagram of the connection between the lower spring and the lead wire in the embodiment of the lens driving motor of the present invention;

FIG. 12 is a schematic diagram of the conduction between the Hall chip and the two bridge terminals of the lead lines of the lead lines inside the base in the embodiment of the lens driving motor of the present invention;

13 is a schematic bottom view of the connection between the Hall chip and the wiring port of the wire line inside the base and the two bridge ends of the wire line in the embodiment of the lens driving motor of the present invention;

14 is a schematic diagram of a Hall chip in an embodiment of the lens driving motor of the present invention;

15 is a schematic diagram of a circuit path of the lens module driving in the embodiment of the lens driving motor of the present invention.

Detailed ways

The invention provides a lens driving motor, in which the Hall chip in the motor is directly mounted on the base, and the circuit of the Hall chip is also realized without the need for components such as a PCB board by arranging circuit communication inside the base. feedback control. Through the above structure, compared with the conventional closed-loop motor, the lens driving motor of the present invention saves the PCB board, further simplifies the product structure, and is beneficial to assembly and low-cost control.

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

Example

Please refer to FIG. 1, which shows an exploded view of an exemplary structure of the lens driving motor of the present invention.

According to Fig. 1, the lens driving motor mainly includes a winding carrier 1, a driving coil 2, an upper spring 3, a lower spring 4, a base 5, a housing 6, a driving magnet 7, a Hall chip 8, and a Hall magnet 9, wherein,

The casing 6 is covered on the base 5, and the winding carrier 1, the driving coil 2, the upper spring 3, the lower spring 4, the driving magnet 7, the Hall chip 8, and the Hall magnet 9 are accommodated in the outer casing 6 and the base 5. In the accommodating space, as shown in Figure 2;

The inner circular hollow position of the winding carrier 1 is used to install the lens (the lens is not shown in the figure). As a movable part, the winding carrier 1 can drive the lens to the target position together. The winding carrier 1 and the lens are collectively called a lens module. ; The winding carrier 1 is provided with a starting line hanging column 12 and an end line hanging column 13, and the winding carrier 1 is also provided with a notch portion 11 for accommodating a Hall magnet, please refer to FIG. 7;

The driving coil 2 is wound on the winding carrier 1, and the driving coil 2 has a coil start wire arranged on the start wire hanging post 12 and a coil end wire on the end wire hanging post 13; when a current is added to the driving coil 2 When , electromagnetic force can be generated in the Z-axis optical axis direction to drive the winding carrier 1 to move along the Z-axis optical axis direction;

The upper spring 3 is disposed between the inner upper part of the housing 6 and the winding carrier 1 , specifically, in the exemplary structure shown in FIG. 3 , the upper spring 3 has an outer ring 31 and an inner ring 32 , and connects the outer ring 31 and the inner ring 31 The spring wire 33 of the ring 32, wherein the outer ring 31 is connected to the upper part of the inner side of the casing 6, for example, it is a fixed connection or a detachable connection, and the inner ring 32 is firmly connected to the upper end surface of the winding carrier 1 through the mounting hole 321 on it. , such as a fixed connection or a detachable connection, the inner ring 32 is driven by the tension spring wire 33 together with the winding carrier 1 to move;

The lower spring 4 is located between the base 5 and the winding carrier 1; specifically, in the exemplary structure shown in FIG. 4, the lower spring 4 is a quadrilateral structure, and four corners are respectively provided with connecting

parts

41a, 41b, 41c, 41d, each Each connecting portion is connected to the base 5 through the mounting holes 411 (only one of which is marked in the figure), such as a fixed connection or a detachable connection, and the lower spring 4 also has an inner ring 42, which is connected to the winding The lower end face of the wire carrier 1 is, for example, a fixed connection or a detachable connection. A spring wire 43 is respectively provided between each connection part of the four corners of the lower spring 4 and the inner ring 42; the inner ring 42 is driven by the tension spring wire 43 to move with the winding carrier 1; and, in the structure shown in FIG. 4 In the middle, the lower spring 4 is divided into two sections;

In the lens driving device, the winding carrier 1 is clamped and fixed between the upper spring 3 and the lower spring 4 through the arrangement of the upper spring 3 and the lower spring 4 . Once the driving coil 2 is supplied with current, the electromagnetic force in the Z-axis optical axis direction (front) starts to work, and the winding carrier 1 is driven to move. The spring wire is stretched, and an elastic force is generated. The elastic force acts on the opposite direction (rear) of the Z-axis optical axis and the electromagnetic force. Therefore, the position of the lens module and the distance moved forward are the difference between the above electromagnetic force and the electromagnetic force. at the point where the elastic forces are in equilibrium. Accordingly, by adjusting the amount of current added to the drive coil 2, the movement amount of the winding carrier 1 as the mover component can be determined;

The base 5 is arranged below the lower spring 4, and the base 5 is provided with a notch 51 for accommodating the Hall chip 8, as shown in FIG. 5; in addition, the base 5 is provided with a circuit connection structure for connecting the power supply , and the circuit communication structure passes through the notch portion 51 and has terminal pins in the notch portion 51;

The setting of the driving magnet 7 is, for example, in the exemplary structure of FIG. 1 , the driving magnet 7 has two pieces, and the two driving magnets 7 are respectively assembled on two opposite inner sides of the housing 6, as shown in FIG. 6;

For example, the Hall chip 8 is arranged in the notch portion 51 on the base 5, please refer to FIG. 1 and FIG. 5 in combination; The terminal pins can connect the Hall chip 8 to the power supply, and can transmit the current signal of the Hall chip 8 to the lower spring 4 , so as to add current to the driving coil 2 to drive the winding carrier 1 to move.

The setting method of the Hall magnet 9 is, for example, buried in a notch portion 11 of the winding carrier 1, as shown in FIG. 7 ;

In addition, the Hall magnet 9 and the Hall chip 8 are disposed opposite to each other along the Z-axis optical axis direction, please refer to FIG. 8 .

For the upper spring 3 , more preferably, each spring wire 33 has at least one wrist portion, and damping glue 34 is coated on at least one wrist portion of the at least one spring wire 33 , more preferably, at least one wrist portion of the plurality of spring wires 33 A plurality of wrists are coated with damping glue 34 , and the damping glue 34 is bridged between two sections of the same spring wire 33 , as shown in FIG. 3 . The arrangement of the damping glue has the function of buffering and shock absorption, and can make the driving of the lens driving motor of the present invention more stable and smooth.

For the lower spring 4 , more preferably, each spring wire 43 has at least one wrist, and at least one wrist of the at least one spring wire 43 is coated with damping glue 44 , more preferably, at least one of the plurality of spring wires 43 A plurality of wrists are coated with damping glue 44 , and the damping glue 44 is bridged between two sections of the same spring wire 43 , as shown in FIG. 4 . The arrangement of the damping glue has the function of buffering and shock absorption, and can make the driving of the lens driving motor of the present invention more stable and smooth.

The circuit setup for this lens drive motor is as follows:

The circuit connection structure embedded in the base 5 includes a wire line and a lead line, as shown in FIG. 9 , wherein the wire line includes two wires, and the two wires have power connection ports 101 respectively, and the two wires are connected to the base 5 . Two terminal pins are respectively provided at both ends of the notch portion 51 on the upper side, and there are four terminal pins 102 in total, which are used to connect the Hall chip 8 to the power supply. The wire line is usually a metal wire line, which can be integrally embedded and molded inside the base 5 by means of INSERT-MOLDING (insert molding). The lead line includes two segments of leads, the leads are bridge leads, and each segment of leads is provided with a bridge end 103 in the notch portion for connecting with the Hall placed in the notch portion 51 on the base 5 . The chip 8 is electrically connected and the current signal of the Hall chip 8 is derived. The other bridge ends of each lead are respectively provided with

pads

104a and 104b, and the

pads

104a and 104b are exposed on the surface of the base 5 . Referring to FIG. 10 , it is a schematic diagram showing the conduction between the Hall chip 8 and the terminal pins 102 of the lead lines and the two bridge terminals 103 of the lead lines.

The lower spring 4 is divided into two sections, and each section has a welding position. Specifically, the two welding positions are respectively located on the two connecting

parts

41c and 41d of the four corners of the lower spring 4; the bonding pads 104a of the leads of each section , 104b and the welding positions on the connecting

parts

41c and 41d of the lower spring 4 are respectively welded to realize circuit connection, and the current signal of the Hall chip 8 is exported to the lower spring 4 . More specifically, laser holes 412 are provided on the welding positions of the two connecting

parts

41c and 41d (see FIG. 11 ) of the lower spring 4 , and the lead lines and the circuit of the lower spring 4 are connected through laser welding.

Please refer to FIG. 12 , which shows a schematic diagram of the conduction between the Hall chip 8 and the two bridge terminals 103 of the lead lines in another perspective.

Please refer to FIG. 12 again (refer to FIG. 7 in combination), the winding carrier 1 has a starting thread hanging post 12 and an end thread hanging post 13, and each section of the lower spring 4 is provided with a spot welding port 45 (refer to FIG. 4), apply conductive solder paste in the spot welding port 45, and connect the two spot welding ports 45 with the coil start line and the coil end of the driving coil 2 at the starting wire hanging post 12 and the end wire hanging post 13 respectively. The wire is connected, so that the driving coil 2 is in electrical communication with the lower spring 4 , and the driving coil 2 can be electrically driven by the Hall chip 8 through the lower spring 4 . After being energized, the energized driving coil 2 interacts with the driving magnet 7 in the driving circuit to form an electromagnetic force, which pushes the winding carrier 1 to drive the lens in the Z-axis direction to realize automatic focusing. The number of spot welding ports provided above is only for exemplary purposes, and those skilled in the art may choose to provide other numbers of spot welding ports based on the above teachings.

Referring to FIG. 13 , the four terminal pins 102 are connected to the Hall chip 8 .

Referring to FIG. 14, the Hall sensor and the control unit are integrated on the Hall chip 8. Specifically, the Hall chip 8 has multiple Hall elements SDA\SCL\VCC\VDD\OUT1\OUT2, and the closed-loop control is performed by the Hall The integrated function of the Hall element SDA\SCL\VCC\VDD\OUT1\OUT2 of chip 8 is realized. Wherein, VDD and VSS are respectively connected with the two terminal pins 102 at one end of the two wires of the wire line, and SDA and SCL are respectively connected with the two terminal pins 102 at the other end of the two wires of the wire line. The pins 102 are connected to each other, and OUT1 and OUT2 are respectively connected to the bridge terminals 103 of each lead wire.

The closed-loop feedback control principle of the lens drive motor is:

During the operation of the lens drive motor, power on in advance to let the motor run for one week on the entire stroke surface, find the best image position for image imaging effect through the image processor, and establish the relationship between the lens position parameters and the corresponding current output parameters .

In the subsequent control process, the Hall chip 8 detects the position of the Z-axis winding carrier 1 relative to the base 5 based on the change of the magnetic field of the Hall magnet 9 that moves with the winding carrier 1 in the Z-axis direction, so as to be able to The position of the lens is detected, and a digital analog electrical signal is output. The Hall chip 8 performs arithmetic processing on the digital analog electrical signal, and applies a corresponding magnitude to the driving coil 2 through the established position parameter and the corresponding current output parameter relationship. The current drives the winding carrier 1 to run accurately and quickly to the best position of the image imaging effect, so that the current position of the winding carrier 1 is feedback-controlled (ie closed-loop control) based on the detection result of the Hall sensor on the Hall chip 8 .

11 , 12 , 14 , and 15 , the circuit path driven by the lens module of the lens driving motor is: OUT1 on the Hall chip 8 - the pad 104b of a lead inside the base 5 - the lower spring 4 The welding position on the connecting part 41d - the starting wire hanging post 12 - the coil start wire - the coil end wire - the end wire hanging post 13 - the welding position on the other connecting part 41 c of the lower spring 4 - the other lead wire inside the base 5 Pad 104a - OUT2 on Hall chip 8.

The lens driving motor provided by the present invention can be used for camera devices and mobile phones of equipment such as mobile phones, and can also be used for similar camera devices and mobile terminals.

The lens driving motor of the present invention has the following characteristics:

Second, the lens driving motor of the present invention adopts a closed-loop feedback mechanism, has a short stroke, and is equipped with a lens position feedback system, which can realize fast and precise focusing, and can precisely control the position of the lens module;

Third, improve the yield and quality of products and reduce losses;

Fourth, the lens drive motor of the present invention introduces a low-cost closed-loop control function, which can achieve fast and accurate focusing and faster convergence to the control position of the lens module, shorten the detection time, and improve the user's photographing experience.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope. The present invention is to be limited only by the claims, along with their full scope and equivalents.

Claims

A lens driving motor is characterized in that it comprises a winding carrier for installing a lens, a driving coil wound on the winding carrier, an upper spring connected and arranged above the winding carrier, and a connection arranged on the a lower spring under the winding carrier, a base located under the lower spring, a casing covered on the base, and a driving magnet arranged on the opposite inner side walls of the casing, the lens driving motor further includes A Hall chip arranged on the base and a Hall magnet arranged on the winding carrier, the Hall chip and the Hall magnet are arranged opposite to each other along the Z-axis optical axis direction; wherein, the base is embedded in There is a circuit communication structure, the circuit communication structure can connect the Hall chip to the power supply, and can transmit the current signal of the Hall chip to the lower spring, so that the lens driving motor can pass through the lower spring. The spring applies current to the drive coil and drives the winding carrier to move.
The lens driving motor according to claim 1, wherein the circuit connection structure embedded in the base comprises a lead line and a lead line, and the lead line is used to connect the Hall chip to a power supply, so The lead line is used for transmitting the current signal of the Hall chip to the lower spring.
3. The lens driving motor according to claim 2, wherein the Hall chip is arranged in a recess on the base, and the wire line comprises two wires, and the two wires are in the recess. There are two ends in the mouth, and there are four terminal pins in total, which are used to realize electrical connection with the Hall chip; the lead line includes two sections of leads, and each section of lead is provided with a bridge end in the notch. , used to achieve electrical connection with the Hall chip.
The lens driving motor according to claim 3, wherein the Hall chip is provided with Hall elements SDA\SCL\VCC\VDD\OUT1\OUT2 to realize closed-loop control; wherein, the Hall elements VDD, VSS They are respectively communicated with the end pins at one end of the two wires, the Hall elements SDA and SCL are respectively communicated with the end pins at the other ends of the two wires, and the Hall elements OUT1, OUT2 is respectively communicated with the bridge terminals of the lead wires of each segment.
The lens driving motor according to claim 3 or 4, wherein the lower spring is divided into two sections, and each section has a welding position; The pads are respectively welded with one of the welding phases of the lower spring to realize circuit connection.
The lens driving motor according to claim 5, wherein each segment of the lower spring is further provided with at least one spot welding port, wherein the spot welding port on one segment is on the starting line of the driving coil The wire hanging post is connected with the coil start line of the driving coil, and the spot welding port on the other section is connected with the coil end line of the driving coil at the end wire hanging post of the driving coil.
The lens driving motor according to claim 1, wherein the Hall magnet is disposed in a notch of the winding carrier.
The lens driving motor according to claim 1, wherein the upper spring has an outer ring and an inner ring, and a spring wire connecting the outer ring and the inner ring, and the spring wire has at least one wrist At least one of the wrist parts of the spring wire is coated with damping glue, and the damping glue is bridged between two sections of the same spring wire; and/or the lower spring has four corners located at the four corners. a connecting part and an inner ring, and a spring wire connecting the connecting part and the inner ring, the spring wire has at least one wrist part, and at least one wrist part of the spring wire is coated with damping glue, The damping glue is bridged between two sections of the same spring wire.
The lens driving motor according to claim 8, wherein the outer ring of the upper spring is connected to the inner surface of the housing, and the inner ring of the upper spring is connected to the upper end surface of the winding carrier connect.
The lens driving motor according to claim 8 or 9, wherein the connecting portion of the lower spring is connected to the upper end surface of the base, and the inner ring of the lower spring is connected to the winding carrier the lower end face connection.
A camera device, characterized in that it is provided with the lens driving motor according to any one of claims 1-10.
A mobile terminal, characterized in that it is provided with the lens driving motor according to any one of claims 1-10.