A suspension wire anti-shake motor and electronic device

Abstract

This utility model relates to the field of microelectronics and discloses a suspension wire anti-shake motor and electronic device. In this utility model, the suspension wire anti-shake motor has a first carrier disposed above a base. The first carrier includes a carrier side and a carrier bottom. The carrier bottom has four accommodating spaces, with their openings facing the base. These four accommodating spaces are symmetrically arranged in pairs, and each accommodating space houses at least one driving magnet. A first emitting electrode is disposed on the carrier side, and a first receiving electrode is disposed on a flexible circuit board. The first emitting electrode and the first receiving electrode are positioned opposite each other in the shaking direction, which is parallel to the base surface. The distance between the first emitting electrode and the first receiving electrode changes as the first carrier moves in the shaking direction. The first emitting electrode and the first receiving electrode are used to detect the distance the first carrier moves in the shaking direction. This design reduces the impact on anti-shake accuracy and facilitates the installation and replacement of the driving magnets.

Description

Technical Field

[0001] This utility model relates to the field of microelectronics, and in particular to a suspension wire anti-shake motor and electronic device. Background Technology

[0002] In a suspension wire image stabilization motor, the lens carrier is suspended and fixed above the base by a suspension wire, thereby avoiding mechanical friction during movement and improving the accuracy of carrier movement. To detect the movement distance of the lens carrier, a capacitive sensing structure can be used to measure the movement distance.

[0003] Due to limitations in the number and placement of capacitor plates in capacitive detection structures, the placement and number of drive magnets are also restricted. Some suspension-wire anti-shake motors employ an asymmetrical structure for their drive magnets. The driving force fluctuation error generated by these asymmetrical drive magnets can reach ±8% to ±15%. This fluctuation error will cause angular shifts or vibrations during motor anti-shake processes, affecting the anti-shake accuracy to some extent. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a suspension wire anti-shake motor and electronic device. By arranging the positions of the drive magnets and various pole plates in the motor, four drive magnets are symmetrically arranged in pairs within the motor to balance the driving force in the direction of motor vibration, reducing the impact on anti-shake accuracy. Simultaneously, a receiving space for accommodating the drive magnets is provided at the bottom of the carrier, with the opening of the receiving space facing the base. The positions of each pole plate in the motor avoid the opening of this receiving space, facilitating the installation and replacement of the drive magnets.

[0005] To address the aforementioned technical problems, embodiments of this utility model provide a suspension wire anti-shake motor, comprising: a base, a flexible circuit board, a first carrier, a driving magnet, a first emitting electrode plate, and a first receiving electrode plate; the first carrier is disposed above the base, and includes a carrier side and a carrier bottom, with a receiving space provided at the carrier bottom, the opening of the receiving space facing the base, the number of receiving spaces being four, and the four receiving spaces being symmetrically arranged in pairs, each receiving space accommodating at least one driving magnet; the first emitting electrode plate is disposed on the carrier side, and the first receiving electrode plate is disposed on the flexible circuit board, the first emitting electrode plate and the first receiving electrode plate being arranged opposite each other in the shaking direction, wherein the shaking direction is parallel to the surface of the base; the distance between the first emitting electrode plate and the first receiving electrode plate changes as the first carrier moves in the shaking direction, and the first emitting electrode plate and the first receiving electrode plate are used to detect the moving distance of the first carrier in the shaking direction.

[0006] An embodiment of this utility model also provides an electronic device, including: the above-mentioned suspension wire anti-shake motor.

[0007] Compared with related technologies, this embodiment of the invention features a first transmitting electrode plate disposed on the side of the first carrier of the motor, forming a capacitance detection unit with a first receiving electrode plate disposed on a flexible circuit board positioned opposite the side of the carrier. A receiving space is disposed at the bottom of the first carrier of the motor, symmetrically arranged to accommodate driving magnets. This symmetrical arrangement of the driving magnets effectively reduces the fluctuation error of the driving force generated by the driving magnets, balances the driving force in the direction of motor vibration, and reduces the impact on anti-vibration accuracy. The opening of the receiving space faces the base, and the positions of each electrode plate in the motor avoid the opening of this receiving space, facilitating the installation and replacement of the driving magnets.

[0008] Additionally, the suspension wire image stabilization motor includes: a second carrier, a second receiving electrode plate disposed on the second carrier, a second emitting electrode plate electrically connected to the first emitting electrode plate, the second emitting electrode plate and the second receiving electrode plate being disposed opposite to each other; the facing area between the second emitting electrode plate and the second receiving electrode plate changes as the second carrier moves in the focusing direction, and the second emitting electrode plate and the second receiving electrode plate are used to detect the moving distance of the second carrier in the focusing direction.

[0009] In addition, there are two second emitting electrodes, and the second receiving electrode moves between the two second emitting electrodes. The differential calculation result of the capacitance formed by the second receiving electrode and the two second emitting electrodes is used to detect the moving distance of the second carrier in the focusing direction.

[0010] Additionally, the suspension wire image stabilization motor includes: a first ground electrode plate; the first emitting electrode plate has a first height in the focusing direction that is greater than the second emitting electrode plate in the focusing direction, and the first ground electrode plate is located between the first emitting electrode plate and the second receiving electrode plate.

[0011] In addition, the flexible circuit board includes: a side circuit board perpendicular to the plane where the shaking direction is located and a bottom circuit board parallel to the plane where the shaking direction is located; the first receiving electrode plate is disposed on the side circuit board; the motor further includes: a driving chip, which is disposed on the bottom circuit board.

[0012] In addition, the suspension wire anti-shake motor includes: a metal housing, a second carrier, and a second receiving electrode plate disposed on the second carrier, the second receiving electrode plate being connected to the drive chip through a sheet metal part; the motor also includes: a second grounding electrode plate disposed relative to the second carrier, the second grounding electrode plate being disposed between the sheet metal part and the metal housing.

[0013] In addition, the suspension wire anti-shake motor includes: a spring and a suspension wire, and the bottom circuit board includes a suspension wire solder joint; the second receiving electrode plate is connected to the spring through the sheet metal part; the spring is electrically connected to the suspension wire, and the suspension wire is connected to the suspension wire solder joint; the suspension wire solder joint is connected to the driving chip through a first line.

[0014] In addition, the driving magnet includes an X-axis magnet, a Y-axis magnet, and a Z-axis magnet; there are two X-axis magnets and two Y-axis magnets, with the two X-axis magnets respectively located in two symmetrically arranged receiving spaces, the two Y-axis magnets respectively located in two other symmetrically arranged receiving spaces, and the Z-axis magnet being located in the same receiving space as the X-axis magnet, or the Z-axis magnet being located in the same receiving space as the Y-axis magnet.

[0015] In addition, the height of the first carrier in the focusing direction is 2.6 mm, the height of the driving magnet is 0.8 mm, and the height of the first emitting plate is 1.6 mm. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0017] Figure 1 It is based on a schematic diagram of the capacitor plates in a motor structure;

[0018] Figure 2 This is an exploded structural diagram of a suspension wire anti-shake motor according to an embodiment of this solution;

[0019] Figure 3 This is a structural schematic diagram of the base of a suspension wire anti-shake motor according to an embodiment of this solution;

[0020] Figure 4 This is a structural schematic diagram of a suspension wire anti-shake motor according to an embodiment of this solution;

[0021] Figure 5 This is a schematic diagram of the first transmitting electrode structure of a suspension wire anti-shake motor according to an embodiment of this solution;

[0022] Figure 6 This is a schematic diagram of the second receiving electrode structure of a suspension wire anti-shake motor according to an embodiment of this solution;

[0023] Figure 7 This is a schematic diagram of the structure of the second transmitting electrode and the second receiving electrode of a suspension wire anti-shake motor according to an embodiment of this solution;

[0024] Figure 8 This is an exploded structural diagram of each electrode plate of a suspension anti-shake motor according to an embodiment of this solution.

[0025] Figure 9 This is a schematic diagram of the combined structure of various pole plates of a suspension wire anti-shake motor according to an embodiment of this solution;

[0026] Figure 10 This is a schematic diagram of the combined structure of each pole plate and the driving magnet of a suspension anti-shake motor according to an embodiment of this solution;

[0027] Figure 11 This is a schematic diagram of a flexible circuit board structure for a suspension wire anti-shake motor according to an embodiment of this solution;

[0028] Figure 12 This is a schematic diagram of the bottom circuit board structure of a suspension anti-shake motor according to an embodiment of this solution;

[0029] Figure 13 This is a partial cross-sectional structural diagram of a suspension wire anti-shake motor according to an embodiment of this solution;

[0030] Figure 14 This is a schematic diagram of the differential plate structure of a suspension wire anti-shake motor according to an embodiment of this solution.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Outer shell; 10-Lens;

[0033] 2-Flexible circuit board; 201-First metal layer; 202-Insulating layer; 203-Second metal layer;

[0034] 31-First carrier; 32-Second carrier; 311-Accommodation space; 3101-Side of carrier; 3102-Bottom of carrier;

[0035] 4-Shrapnel;

[0036] 5-Suspension wire;

[0037] 6-Base;

[0038] 7-Drive magnet; 71-Y-axis magnet; 72-X-axis magnet; 73-Z-axis magnet;

[0039] 8-Drive coil;

[0040] 91-First transmitting electrode; 92-First receiving electrode; 93-Second transmitting electrode; 94-Second receiving electrode; 96-Sheet metal part; 911-Y-axis transmitting electrode; 912-X-axis transmitting electrode; 951-First grounding electrode; 952-Second grounding electrode; 971-Transmitting electrode circuit spring contact welding point; 972-Receiving electrode circuit spring contact welding point; 973-Coil grounding circuit spring contact welding point;

[0041] 101-Driver chip; 102-Filter capacitor; 103-External pin; 104-Coil solder joint; 105-Suspension wire solder joint; 1061-Second line; 1062-Third line; 1063-Fourth line; 1064-First line. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to enable the reader to better understand this utility model. However, the technical solutions claimed by this utility model can be implemented even without these technical details and various changes and modifications based on the following embodiments.

[0043] The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this utility model. The various embodiments can be combined with and referenced by each other without contradiction.

[0044] The arrangement of capacitor plates in the motor is as follows: Figure 1 As shown, a first electrode plate 901 is laid near the base of the lens carrier and parallel to the base, and a second electrode plate 902 is set on the side of the lens carrier. The first and second electrode plates are used to detect the movement distance in different directions, respectively. With this arrangement of capacitor plates, this side of the lens carrier is completely covered by capacitor plates, resulting in no space on this side to place the drive magnet. The drive magnet cannot meet the symmetrical design, which causes angular shift or vibration during motor-driven image stabilization, affecting the image stabilization accuracy to some extent.

[0045] To address the problem of the inability to achieve a symmetrical design for the driving magnet, embodiments of this utility model relate to a suspension wire anti-shake motor, such as... Figure 2 As shown, the suspension wire image stabilization motor includes: a lens 10, a housing 1, a flexible circuit board 2, a first carrier 31, a second carrier 32, a spring 4, a suspension wire 5, and a base 6. The first carrier 31 is disposed above the base 6. The first carrier 31 drives the lens to move in the shaking direction, and the second carrier 32 drives the lens to move in the focusing direction.

[0046] like Figure 3The image shown is a view of the bottom of the first carrier. Figure 3 The X and Y axes are the shaking direction, and the Z axis is the focusing direction. The first carrier includes a carrier side 3101 and a carrier bottom 3102. The carrier bottom 3102 is provided with a receiving space 311, the opening of which faces the base. There are four receiving spaces 311, and the four receiving spaces 311 are symmetrically arranged in pairs. Each receiving space 311 accommodates at least one driving magnet 7. Figure 4 The diagram shows the positional relationship between the driving magnet 7 and the first emitting electrode plate and the first receiving electrode plate. The first emitting electrode plate 91 is disposed on the side of the first carrier 31, and the first receiving electrode plate 92 is disposed on the flexible circuit board, which surrounds the side of the carrier. The first emitting electrode plate 91 and the first receiving electrode plate 92 are arranged opposite each other in the shaking direction, which is parallel to the surface of the base 6. The distance between the first emitting electrode plate 91 and the first receiving electrode plate 92 changes as the first carrier 31 moves in the shaking direction. The first emitting electrode plate 91 and the first receiving electrode plate 92 are used to detect the distance the first carrier 31 moves in the shaking direction. Since the position of the first emitting electrode plate 91 is adjusted to the side of the carrier, avoiding the position of the bottom of the carrier, the driving magnet 7 is installed from the bottom of the first carrier 31 to the first carrier 31. A driving coil 8 is disposed on the base opposite to the driving magnet 7. The driving coil 8 cooperates with the driving magnet 7 to drive the motor lens.

[0047] Compared with related technologies, this embodiment of the invention features a first transmitting electrode plate disposed on the side of the first carrier of the motor, forming a capacitance detection unit with a first receiving electrode plate disposed on a flexible circuit board positioned opposite the side of the carrier. A receiving space is disposed at the bottom of the first carrier of the motor, symmetrically arranged to accommodate driving magnets. This symmetrical arrangement of the driving magnets effectively reduces the fluctuation error of the driving force generated by the driving magnets, balances the driving force in the direction of motor vibration, and reduces the impact on anti-vibration accuracy. The opening of the receiving space faces the base, and the positions of each electrode plate in the motor avoid the opening of this receiving space, facilitating the installation and replacement of the driving magnets.

[0048] The relevant parameters of the aforementioned structure can be set as follows: the height of the first carrier in the focusing direction is 2.6 mm, the height of the driving magnet is 0.8 mm, and the height of the first emitting electrode is 1.6 mm. In practice, the heights of each structure can be finely adjusted. When the sum of the heights of the driving magnet and the first emitting electrode is less than the height of the first carrier, it can be ensured that the driving magnet and the first emitting electrode can be positioned on the same side of the first carrier.

[0049] Additionally, the suspension wire image stabilization motor includes: a second carrier 32, a second receiving electrode plate disposed on the second carrier, and a second emitting electrode plate electrically connected to the first emitting electrode plate, the second emitting electrode plate and the second receiving electrode plate being disposed opposite each other; the facing area between the second emitting electrode plate and the second receiving electrode plate changes as the second carrier moves in the focusing direction, and the second emitting electrode plate and the second receiving electrode plate are used to detect the moving distance of the second carrier in the focusing direction. The structure of each electrode plate is described in detail below:

[0050] The lens can move in the X, Y, and Z axes. Therefore, the electrode types can be categorized as X-axis electrode, Y-axis electrode, and Z-axis electrode, each corresponding to the detection of movement distance in different directions. Movement in the X and Y axes represents movement in the jitter direction, which is detected using a first transmitting electrode and a first receiving electrode. Since the jitter direction includes both the X and Y axes, the corresponding first transmitting electrode is as follows: Figure 5 As shown, the system includes an X-axis emitting electrode 912 and a Y-axis emitting electrode 911, which are connected by conductive components. Solder joints are provided at the ends of the conductive components as connection points for connecting to the driver chip. Specifically, the solder joints can be connected to a spring contact, which is connected to a flexible circuit board via a suspension wire, thus achieving connection to the driver chip on the flexible circuit board. Similarly, the first receiving electrode includes an X-axis receiving electrode and a Y-axis receiving electrode. The X-axis receiving electrode is positioned opposite to the X-axis emitting electrode 912. The change in capacitance caused by the change in the distance between the two electrodes determines the movement distance of the first carrier in the X-axis direction. The Y-axis receiving electrode is positioned opposite to the Y-axis emitting electrode 911. The change in capacitance caused by the change in the distance between the two electrodes determines the movement distance of the first carrier in the Y-axis direction. For displacement detection in the Z-axis direction, a device such as... can be set on the second carrier... Figure 6 The second receiving electrode 94 shown is opposite to the second transmitting electrode, which is disposed with a second transmitting electrode. Figure 7 The diagram shows an exploded view of the second receiving electrode 94 and the second transmitting electrode 93. The second transmitting electrode 93 is arranged parallel to the Y-axis transmitting electrode 911. There are two second transmitting electrodes 93. The second receiving electrode 94 moves between the two second transmitting electrodes 93. The differential calculation result of the capacitance formed by the second receiving electrode 94 and the two second transmitting electrodes is used to detect the movement distance of the second carrier in the focusing direction, which can, to some extent, offset the influence of capacitance signal shift caused by the displacement of the second receiving electrode due to temperature and compression. The two second transmitting electrodes 93 and the Y-axis transmitting electrode 911 are formed by S-shaped bending of a metal plate, and the area between the two second transmitting electrodes 93 is hollowed out, connected only by metal parts at the edges. The hollowed-out area between the two second transmitting electrodes 93 provides movement space for the second receiving electrode 94.

[0051] In addition, such as Figure 8As shown, the suspension wire image stabilization motor includes: a first ground electrode plate 951, the first height of the first emitting electrode plate in the focusing direction is greater than the second height of the second emitting electrode plate in the focusing direction, and the first ground electrode plate is located between the first emitting electrode plate and the second receiving electrode plate. Figure 8 As shown in the example of setting the first grounding plate 951 on one side of the Y-axis emitting plate 911, the first grounding plate 951 absorbs the electric field transmitted from the Y-axis emitting plate 911 to the second receiving plate 94, avoids the interference generated by the Y-axis emitting plate 911 to the second receiving plate 94, and reduces the crosstalk between detection plates in different directions.

[0052] Additionally, the suspension wire anti-shake motor includes: a metal housing, a second carrier, and a second receiving electrode plate disposed on the second carrier, such as... Figure 8 As shown, the second receiving electrode 94 is connected to the drive chip via a sheet metal part 96. The motor also includes a second grounding electrode 952 that moves relative to the second carrier, positioned between the sheet metal part 96 and the metal casing 1. When the second carrier moves in the shaking direction, the distance between the sheet metal part 96 (connecting the second receiving electrode 94) and the metal casing 1 changes, resulting in varying degrees of absorption of the charge carried by the sheet metal part 96 by the metal casing, affecting the capacitance signal transmitted by the sheet metal part 96. The second grounding electrode 952 on the second carrier isolates the influence of the metal casing on the sheet metal part 96. Furthermore, since the second grounding electrode 952 moves synchronously with the sheet metal part 96, the distance between them remains constant as the second carrier moves in the shaking direction. This means the influence of the second grounding electrode on the capacitance signal transmitted by the sheet metal part 96 remains unchanged, facilitating the removal of the sheet metal part 96's influence through subsequent calculations, thereby minimizing the impact on the capacitance detection results and improving the accuracy of the detection results.

[0053] like Figure 9 The diagram shows a combination structure of multiple electrode plates. The first emitting electrode plate has an emitting electrode plate circuit spring welding point 971 at its end, and the second receiving electrode plate has a receiving electrode plate circuit spring welding point 972 at its end. In addition, a coil grounding circuit spring welding point 973 can be provided at one corner of the motor. This coil grounding circuit spring welding point 973 is connected to the first grounding electrode plate and the second grounding electrode plate.

[0054] like Figure 10The diagram shows the combined structure of each pole plate and the driving magnet. The driving magnet includes: an X-axis magnet 72, a Y-axis magnet 71, and a Z-axis magnet 73. There are two X-axis magnets 72 and two Y-axis magnets 71. The two X-axis magnets are located in two symmetrically arranged receiving spaces, and the two Y-axis magnets are located in two other symmetrically arranged receiving spaces. The Z-axis magnet is located in the same receiving space as the X-axis magnet, or the Z-axis magnet is located in the same receiving space as the Y-axis magnet. Figure 10 The diagram shows that the Z-axis magnet and the X-axis magnet are located in the same space, and the Z-axis magnet and the X-axis magnet are arranged sequentially in the Z-axis direction.

[0055] The structure of flexible circuit boards is as follows Figure 11 As shown, the flexible circuit board includes: a side circuit board perpendicular to the plane where the shaking direction is located and a bottom circuit board parallel to the plane where the shaking direction is located; a first receiving electrode plate is disposed on the side circuit board, and the first receiving electrode plate includes an X-axis receiving electrode plate 922 and a Y-axis receiving electrode plate 921. The X-axis receiving electrode plate 922 and the Y-axis receiving electrode plate 921 are etched onto the flexible circuit board to form corresponding patterns.

[0056] The motor also includes: a drive chip 101, which is disposed on a bottom circuit board. The bottom circuit board also includes a filter capacitor 102, coil solder joints 104, and suspension wire solder joints 105. The four coil solder joints 104 are used to solder the drive coils in the jitter direction, including the current inflow solder joint, the current outflow solder joint, the current inflow solder joint, and the current outflow solder joint of the drive coil in the Y-axis direction. The four suspension wire solder joints 105 serve as the current inflow solder joint, the current outflow solder joint, and the suspension wire solder joints corresponding to the suspension wires connected to the receiving electrode circuit spring solder joint 972 and the transmitting electrode circuit spring solder joint 971 mentioned above. For example, the second receiving electrode plate is connected to the spring 4 via the receiving electrode plate circuit spring solder point 972 of the sheet metal part. The spring 4 is electrically connected to the suspension wire 5, and the suspension wire is connected to the suspension wire solder point 105. The suspension wire solder point 105 is connected to the driver chip 101 through the first circuit. Figure 12 As shown, the coil solder joint 104 is set along the circular arc of the lens, and the suspension wire solder joint 105 is located at the four corners of the motor.

[0057] The edge of the side circuit board also includes external pins 103, which are connected to the driver chip 101 and serve as a bridge for communication between the driver chip 101 and external components.

[0058] In addition, such as Figure 13As shown, the flexible circuit board includes a first metal layer 201, an insulating layer 202, and a second metal layer 203 stacked together. When the flexible circuit board is placed at the bottom of the base, a groove is formed at the bottom of the base to accommodate the driver chip 101. The Y-axis receiving plate 921 is disposed on the first metal layer 201 and enters the second metal layer 203 through a through-hole. The second line 1061 travels along the second metal layer to the bottom circuit board and then returns to the first metal layer 201 through a through-hole to connect with the driver chip. The third line 1062 of the driver chip enters the second metal layer 203 through a through-hole and connects to the external pin 103 along the second metal layer. The second and third lines are located on different metal layers and are shielded by the insulating layer to avoid crosstalk between the communication lines and the capacitor lines. The portion of the second line on the side circuit board is distributed on the second metal layer near the housing, providing good signal shielding and preventing the signal of the capacitor lines from being affected by the external environment. The fourth line 1063 between the driver coil 8 and the driver chip can be placed on either the first or the second metal layer. The first and second emitting plates, the second receiving plate, and the Z-axis drive coil are connected to the suspension wire solder joint via a first line 1064. The first line 1064 is located in the first metal layer to facilitate connection with the suspension wire solder joint.

[0059] like Figure 14 The diagram illustrates one method of capacitor plate arrangement. To avoid the influence of external factors such as pressure and temperature causing changes in plate distance, a differential plate structure is incorporated into the motor. For example, a pair of plates can be arranged on opposite sides of the motor. One set of first transmitting plates 91 and first receiving plates 92 is arranged on one side of the motor, and another set of first transmitting plates 91 and first receiving plates 92 is arranged on the opposite side. By using two capacitor signals and differential mathematical formulas, the OIS stabilization detection becomes more accurate. Specifically, the aforementioned differential plate structure can be used in both the X-axis and Y-axis directions.

[0060] The capacitance sensing structure formed along the X, Y, and Z axes mentioned above conforms to the physical formula of a parallel plate capacitor: C = εS / 4πkd, where ε represents the dielectric constant, determined by the medium between the plates, such as air or water; k represents the electrostatic constant, also known as the Coulomb constant, which indicates that the magnitude of the force between two point charges, each with a charge of 1C, when separated by 1m in a vacuum is F = 8.987551 × 10⁻⁶. 9 N, i.e., k = 8.987551 × 10 9 N·m 2 / C; S represents the overlapping area (projected area) of the two plates; d represents the vertical distance between the two plates; π represents pi. As can be seen from the formula, changing the overlapping area or the vertical distance between the plates can change the capacitance value. Based on this capacitance principle, the lens movement distance is detected based on the change in capacitance value. For the capacitance formed along the X and Y axes, the movement distance is determined by changing the distance affecting the capacitance value; for the capacitance formed along the Z axis, the movement distance is determined by changing the relative area affecting the capacitance value.

[0061] One feasible embodiment of this utility model relates to an electronic device, including: the above-mentioned suspension wire anti-shake motor.

[0062] Compared with related technologies, the electronic device provided in this embodiment of the present invention is equipped with the suspension anti-shake motor provided in the aforementioned embodiment. Therefore, it also has the technical effects provided in the aforementioned embodiment, which will not be elaborated here.

[0063] Those skilled in the art will understand that the above embodiments are specific embodiments for implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A suspension wire anti-shake motor, characterized in that, The motor comprises a base, a flexible circuit board, a first carrier, a driving magnet, a first emitter plate and a first receiver plate. The first carrier is arranged above the base, and comprises a carrier side and a carrier bottom. The first emitter plate is arranged on the carrier side, and the first receiver plate is arranged on the flexible circuit board. The first emitter plate and the first receiver plate are arranged opposite to each other in a shaking direction, wherein the shaking direction is parallel to the surface of the base. The distance between the first emitter plate and the first receiver plate changes with the movement of the first carrier in the shaking direction.

2. A suspended wire anti-dithering motor according to claim 1, characterized in that The motor further comprises a second carrier, a second receiver plate arranged on the second carrier, and a second emitter plate electrically connected to the first emitter plate. The second emitter plate and the second receiver plate are arranged opposite to each other. The facing area between the second emitter plate and the second receiver plate changes with the movement of the second carrier in a focusing direction.

3. The suspended wire anti-dithering motor according to claim 2, characterized in that, The second emitter plate comprises two second emitter plates, and the second receiver plate moves between the two second emitter plates.

4. The suspended wire anti-dithering motor according to claim 2, characterized in that, The difference between the capacitances formed by the second receiver plate and the two second emitter plates is used to detect the movement distance of the second carrier in the focusing direction. The motor further comprises a first ground plate. The first height of the first emitter plate in the focusing direction is greater than the second height of the second emitter plate in the focusing direction.

5. The suspended wire anti-dithering motor according to claim 1, wherein, The first ground plate is arranged between the first emitter plate and the second receiver plate. The flexible circuit board comprises a side circuit board perpendicular to the plane of the shaking direction and a bottom circuit board parallel to the plane of the shaking direction. The first receiver plate is arranged on the side circuit board.

6. A suspended wire anti-dithering motor according to claim 5, characterized in that The motor further comprises a driving chip arranged on the bottom circuit board. The motor comprises a metal shell, a second carrier, and a second receiver plate arranged on the second carrier. The second receiver plate is connected to the driving chip through a sheet metal part.

7. The suspended wire anti-dithering motor according to claim 6, characterized in that, The motor further comprises a second ground plate arranged opposite to the second carrier. The second ground plate is arranged between the sheet metal part and the metal shell. The bottom circuit board comprises a suspension wire welding point. The second receiver plate is connected to the elastic sheet through the sheet metal part.

8. The vibrating reed dechoupe motor according to claim 1, characterized in that, The elastic sheet is electrically connected to the suspension wire, and the suspension wire is connected to the suspension wire welding point. The suspension wire welding point is connected to the driving chip through a first line. The driving magnet comprises an X-axis magnet, a Y-axis magnet, and a Z-axis magnet. The number of the X-axis magnets and the Y-axis magnets is two, two X-axis magnets are respectively arranged in two symmetrically arranged accommodating spaces, two Y-axis magnets are respectively arranged in other two symmetrically arranged accommodating spaces, the Z-axis magnet is arranged in the same accommodating space with the X-axis magnet, or the Z-axis magnet is arranged in the same accommodating space with the Y-axis magnet.

9. The vibrating reed dechoupe motor according to claim 1, characterized in that, The height of the first carrier in the focusing direction is 2.6 mm, the height of the driving magnet is 0.8 mm, and the height of the first emitter plate is 1.6 mm.

10. An electronic device, comprising: Comprising: The suspension wire anti-shake motor according to any one of claims 1 to 9.

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