Motor, camera module and electronic device

Abstract

The application provides a motor, a camera module and an electronic device. The motor comprises a base, an anti-shake support, four SMA wires and a focusing support. A part of the anti-shake support is located on the inner side of the base, one end of each SMA wire is fixedly connected to the anti-shake support, and the other end is fixedly connected to the base. The focusing support is movably connected to the anti-shake support. The base comprises a first conductive insert and four second conductive inserts, the anti-shake support comprises a third conductive insert, the first conductive insert is electrically connected to one end of the four SMA wires through the third conductive insert, and the other end of the four SMA wires is connected to the four second conductive inserts one by one. The first conductive insert, the third conductive insert, one SMA wire and one second conductive insert connected in sequence form a conductive path, and the conductive path is a return path. When the SMA wire is powered on, the image sensor is not easily subjected to electromagnetic interference.

Description

Technical Field

[0001] This application relates to the field of shooting equipment, and more particularly to a motor, camera module and electronic equipment. Background Technology

[0002] Shape memory alloy (SMA) motors are small in size and have strong driving capabilities, making them widely used in camera modules. SMA motors utilize the thermal expansion and contraction properties of metal wires, controlling the current to change the length of the wires, thereby driving the lens to move in the XY plane and achieving optical image stabilization (OIS).

[0003] To reduce power consumption, pulse width modulation (PWM) signals are typically used to drive SMA motors. However, PWM generates periodic electromagnetic radiation signals. When traditional SMA motors are used for image stabilization, the SMA lines are energized to transmit the PWM signal. When motor image stabilization and image sensor exposure are synchronized, stripe interference can occur in the images generated by the image sensor. Summary of the Invention

[0004] This application provides a motor, a camera module, and an electronic device. When the SMA line of the motor is energized, the motor is less likely to interfere with the image sensor.

[0005] In a first aspect, embodiments of this application provide a motor. The motor includes a base, an image stabilization bracket, four SMA cables, and a focusing bracket. A portion of the image stabilization bracket is located inside the base. One end of each SMA cable is fixedly connected to the image stabilization bracket, and the other end is fixedly connected to the base. The SMA cables can drive the image stabilization bracket to move relative to the base along a first direction and a second direction. The focusing bracket is movably connected to the image stabilization bracket and can move relative to the base along a third direction. The first direction, the second direction, and the third direction intersect each other. The base includes a first conductive insert and four second conductive inserts. The image stabilization bracket includes a third conductive insert. The first conductive insert is electrically connected to one end of the four SMA cables via the third conductive insert. The other ends of the four SMA cables are connected one-to-one to the four second conductive inserts. The first conductive insert, the third conductive insert, one SMA cable, and one second conductive insert connected in sequence form a conductive path, which is a foldback path.

[0006] In this embodiment, the four SMA wires of the motor can be electrically connected to the conductive insert in the base using a third conductive insert within the anti-shake bracket, forming a conductive path. The conductive path is a zigzag path, meaning it can bend back at at least one position in the opposite direction at an acute angle. When the conductive path is energized, the current in the conductive path can change direction at at least one position, so that a current in the opposite direction can be formed in the conductive path.

[0007] In this embodiment, the motor uses a pulse width modulation (PWM) signal to drive the SMA lines, meaning the SMA lines transmit the PWM signal. The PWM signal generates periodic electromagnetic radiation. If this periodic electromagnetic radiation couples to adjacent signal lines, it will cause electromagnetic interference (EMI) to the nearby signals. Since the SMA lines are typically located close to the image sensor in a camera module, to reduce the risk of PWM electromagnetic radiation interfering with the image sensor, this application sets the conductive paths of each SMA line as folded-back paths. This ensures that when the conductive path is energized, the current flowing through it does not form a loop or a loop-like loop. Furthermore, because the conductive path is a folded-back path, the magnetic field generated by the round-trip current on the conductive path can cancel each other out. Thus, the periodic electromagnetic radiation signal generated by the PWM will not strongly interfere with the image sensor and affect the electrical signal generated by the image sensor, thereby improving the imaging effect of the image sensor.

[0008] In some embodiments, the base further includes a base plate, which includes a first side, a second side, a third side, and a fourth side connected in sequence; a first conductive insert and a second conductive insert are both at least partially embedded in the base plate, and one end of the first conductive insert and one end of the second conductive insert are both exposed from the first side; four SMA lines are respectively arranged corresponding to the first side, the second side, the third side, and the fourth side, and the conductive path to which each SMA line belongs is turned back at the side corresponding to the SMA line.

[0009] It is understandable that the conduction path turning back at the edge corresponding to the SMA line means that when the conduction path to which each SMA line belongs is energized, the conduction path forms a current in the opposite direction at the edge corresponding to the SMA line, but it is not limited to the current changing direction at the edge corresponding to the SMA line. For example, the current in the conduction path can change direction at the edge corresponding to the SMA line to form a current in the opposite direction; the current in the conduction path can also change direction at the corner connecting the edge to form a current in the opposite direction at the edge corresponding to the SMA line.

[0010] In this embodiment, when the conductive path is energized, the current can flow from the first edge of the base plate to each SMA line, and then turn back at the corresponding edge of each SMA to return the current to the first edge, thereby preventing the current in the conductive path from forming a loop or similar loop. The structure of the conductive path and the motor is relatively simple and reliable. Furthermore, after the current flows through the SMA line, it turns back at the corresponding edge of the SMA, and does not turn back again after flowing through other edges. This results in a shorter conductive path. The structure of the conductive path and the motor is relatively simple.

[0011] In some embodiments, the motor further includes a first reed that connects the base and the anti-shake bracket and is electrically connected to a first conductive insert and a third conductive insert; the first reed forms part of a conductive path.

[0012] In this embodiment, on the one hand, the first spring can provide an elastic force to move the image stabilization bracket back to its equilibrium position when the bracket moves relative to the base and leaves its equilibrium position. On the other hand, the first conductive insert can be electrically connected to the third conductive insert via the first spring, thereby electrically connecting one end of the four SMA wires. Furthermore, the four conductive paths can share one first conductive insert and one first spring, resulting in fewer structural components and a simpler structure for the conductive paths. It is understood that the first spring has a "multi-purpose" effect.

[0013] In some embodiments, the third conductive insert includes a first sub-insert and a second sub-insert; the first spring includes a first end, a second end, and a third end, the first end being fixedly connected to the base and electrically connected to the first conductive insert; the second end and the third end are both fixedly connected to the anti-shake bracket, and the second end is electrically connected to the first sub-insert and the third end is electrically connected to the second sub-insert; the second end and the first sub-insert are both corresponding to the first side, and the first sub-insert is electrically connected to two SMA lines; the third end and the second sub-insert are both corresponding to the fourth side, and the second sub-insert is electrically connected to two other SMA lines.

[0014] In this embodiment, the first conductive insert can be electrically connected to the first sub-insert via the first spring contact, thereby electrically connecting two SMA lines. Simultaneously, the first conductive insert can also be electrically connected to the second sub-insert via the first spring contact, thereby electrically connecting two more SMA lines. Thus, four SMA lines can be electrically connected to the first conductive insert via either the first sub-insert or the second sub-insert.

[0015] Furthermore, the second end of the first spring and the first sub-insert are both corresponding to the first side, and the third end of the first spring and the second sub-insert are both corresponding to the fourth side, making the conductive path structure more reasonable and simple. It is understood that the positions of the first and second sub-inserts can be adjusted as needed. In some other embodiments, the first and second sub-inserts may also correspond to other positions on the base.

[0016] In some embodiments, the motor further includes a first movable claw and a second movable claw, both of which are fixedly connected to the anti-shake bracket; the first movable claw is electrically connected to a first sub-insert, and one end of each of the two SMA wires is connected to the first movable claw; the second movable claw is electrically connected to a second sub-insert, and one end of each of the other two SMA wires is connected to the second movable claw.

[0017] In this embodiment, one end of each of the two SMA cables can be fixedly connected to the image stabilization bracket via a first movable claw and electrically connected to the first sub-insertment; one end of the other two SMA cables can be fixedly connected to the image stabilization bracket via a second movable claw and electrically connected to the second sub-insertment. In other words, the two SMA cables share a movable claw that electrically connects to a sub-insertment of the third conductive insert. On the one hand, the conductive path has fewer structural components and a simpler structure; on the other hand, the connection surface between the movable claw and the sub-insertment is large, which helps to improve the reliability of the electrical connection between the third conductive insert and the movable claw.

[0018] In some embodiments, the first movable claw is located between two adjacent SMA lines and is electrically connected to the two adjacent SMA lines; the second movable claw is located between another two adjacent SMA lines and is electrically connected to the other two adjacent SMA lines. In this embodiment, two adjacent SMA lines can share the same movable claw, making the structure of the conductive path more reasonable and simple.

[0019] In some embodiments, the base plate further includes a first corner, a third corner, and a fourth corner. The first corner connects between the first and second sides, the third corner connects between the third and fourth sides, and the fourth corner connects between the fourth and first sides. A first movable claw corresponds to the first corner, a second movable claw corresponds to the third corner, and a first spring corresponds to the fourth corner. Four SMA wires correspond to the first, second, third, and fourth conductive paths, respectively. The first conductive path corresponds to the first side and then folds back at the fourth corner, the first corner, and the first side. The second conductive path corresponds to the first and second sides and then folds back at the fourth corner and the second side. The third conductive path corresponds to the first, fourth, and third sides and then folds back at the third side. The fourth conductive path corresponds to the first and fourth sides and then folds back at the third corner. This design results in shorter conductive paths and a simpler, more rational structure. The reliability of the conductive paths and the motor is also improved.

[0020] In some embodiments, the image stabilization bracket further includes a bracket body, which includes a first top surface and a first bottom surface facing away from each other. A first spring is fixedly connected to the first top surface, and a first movable claw and a second movable claw are both fixedly connected to the first bottom surface. A first sub-insert and a second sub-insert are at least partially embedded in the bracket body. One end of the first sub-insert protrudes through the first top surface and is electrically connected to the second end of the first spring. The other end of the first sub-insert protrudes through the first bottom surface and is electrically connected to the first movable claw. One end of the second sub-insert protrudes through the first top surface and is electrically connected to the third end of the first spring. The other end of the second sub-insert protrudes through the first bottom surface and is electrically connected to the second movable claw.

[0021] In this embodiment, the first spring and the SMA cable can be located on opposite sides of the image stabilization bracket. On the one hand, the first spring and the SMA cable can make reasonable use of the space on the image stabilization bracket, resulting in a more reasonable conductive path structure and a simpler motor structure; on the other hand, it can prevent the first spring and the SMA cable from interfering with each other during image stabilization.

[0022] In some embodiments, the base plate includes a first surface and a second surface disposed opposite to each other, a first spring is fixedly connected to the first surface, and an SMA wire is fixedly connected to the second surface; one end of a first conductive insert is exposed through the first surface of the base plate and is electrically connected to the first end of the first spring, and one end of a second conductive insert is exposed through the second surface of the base plate and is electrically connected to the SMA wire.

[0023] In this embodiment, the first reed and the SMA wire can be located on opposite sides of the base. On the one hand, the first reed and the SMA wire can make reasonable use of the space on the base, resulting in a more reasonable conductive path structure and a simpler motor structure; on the other hand, it can avoid interference between the first reed and the SMA wire during the anti-shake process.

[0024] In some embodiments, the motor further includes a focusing circuit board and a focusing sensor. The focusing circuit board includes a first part and a second part. The first part is fixedly connected to the base, and the second part is fixedly connected to the image stabilization bracket. The focusing sensor is fixedly connected to and electrically connected to the second part. The focusing sensor is used to detect changes in the position of the focusing bracket. The first part has a connecting end that is exposed from a first side of the base. One end of a first conductive insert and one end of a second conductive insert are exposed from a second side of the base. The first side and the second side are opposite sides of the base.

[0025] In this application, the first conductive insert and the second conductive insert transmit PWM signals. Since PWM generates periodic electromagnetic radiation signals, interference will occur if they are coupled to adjacent signal lines. For example, the PWM signal may interfere with the internal integrated circuit (I2C) bus signals on the focusing circuit board.

[0026] In this embodiment, by exposing the connection terminal of the focusing circuit board from the first side of the base, and exposing one end of the first conductive insert and one end of the second conductive insert from the second side of the base, the connection terminal of the focusing circuit board can be moved away from one end of the first conductive insert and one end of the second conductive insert. This avoids interference between the PWM signals on the first and second conductive inserts and the I2C signals on the focusing circuit board, thereby allowing the drive chip to better control the motor's focusing action and achieve a better focusing effect.

[0027] In some embodiments, the focusing circuit board further includes a first connecting segment and a second connecting segment. One end of the first connecting segment is connected to a first part, and the other end is connected to one end of the second connecting segment. The other end of the second connecting segment is connected to a second part. The first part and the second part of the focusing circuit board both face the same side of the base. The first connecting segment is fixedly connected to the base and surrounds a portion of the side of the base. The second connecting segment is bent relative to the first connecting segment and is fixedly connected to the image stabilization bracket.

[0028] In this embodiment, the first connecting segment and the second connecting segment of the focusing circuit board can form a connecting segment. The connecting segment can be bent, and the first connecting segment can extend a certain length around the side of the base. In this way, when the image stabilization bracket moves relative to the base, the first connecting segment and the second connecting segment can undergo a certain deformation when the focusing circuit board is stretched, thereby avoiding stress concentration on the focusing circuit board and reducing the risk of breakage of the focusing circuit board.

[0029] Secondly, embodiments of this application provide a camera module. The camera module includes a lens, an image sensor, a driver chip, and a motor as described above. The lens is mounted on a focusing bracket, the image sensor is located on the light-emitting side of the lens, and is fixedly connected to a base; the driver chip is electrically connected to a first conductive insert and a second conductive insert.

[0030] In this embodiment, the driver chip can transmit PWM signals to the SMA line through the first and second conductive inserts to control the motor's anti-shake mechanism. The periodic electromagnetic radiation signal generated by the PWM will not strongly interfere with the image sensor or affect the electrical signals generated by the image sensor, thus ensuring better imaging performance of the camera module.

[0031] Thirdly, embodiments of this application provide an electronic device. The electronic device includes a device housing and the aforementioned camera module, with the camera module disposed within the device housing. During shooting, the electronic device can achieve both image stabilization and good image quality.

[0032] Fourthly, this application provides a control method for a camera module. The camera module includes a motor, an image sensor, and a driver chip. The motor includes a base, a stabilization bracket, and an SMA cable. One end of the SMA cable is fixedly connected to the base, and the other end is fixedly connected to the stabilization bracket. The image sensor is fixedly connected to the base, and the driver chip is electrically connected to the image sensor and the SMA cable. The control method includes: the driver chip obtaining the imaging timing of the image sensor, the imaging timing including the timing of the non-exposure area, the timing of the exposure-sensitive area, and the timing of the exposure-insensitive area; the driver chip outputting a driving signal and a detection signal to the SMA cable according to the imaging timing of the image sensor, wherein the driving signal is used to cause deformation of the SMA cable, and the detection signal is used to detect the deformation of the SMA cable, the timing of the detection signal corresponding to the timing of the exposure-insensitive area of ​​the image sensor, or corresponding to the timing of the non-exposure area of ​​the image sensor.

[0033] It's understandable that within a signal acquisition cycle of an image sensor, the time during which the image sensor samples is called the exposure-sensitive zone. The time region outside of this sampling period can be called the exposure-insensitive zone. The time region outside the signal acquisition cycle is the non-exposure zone. In other words, the image sensor does not sample in either the exposure-insensitive or non-exposure zone. When the image sensor is sampling (i.e., within the exposure-sensitive zone), if it is interfered with by the detection signal output from the driver chip, the noise generated by the interference will be captured, causing interference fringes in the image generated by the image sensor. However, in the exposure-insensitive and non-exposure zones, since the image sensor does not sample, it is not sensitive to external interference; even if external interference exists, it will not be displayed in the image.

[0034] This application embodiment maps the timing of the detection signal to the timing of the exposure-insensitive area of ​​the image sensor, or to the timing of the non-exposure area of ​​the image sensor, so that the detection signal can avoid the exposure-sensitive area of ​​the image sensor, thereby preventing interference noise of the detection signal from being collected by the image sensor and affecting the imaging effect of the image sensor.

[0035] In some implementations, the driver chip outputs a driving signal and a detection signal to the SMA line according to the imaging timing of the image sensor, including: the driver chip comparing the period of the detection signal with the period of the exposure-insensitive area of ​​the image sensor; if the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor, then controlling the rising edge and falling edge of the detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor; if the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor, then controlling the rising edge of the detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor, and the falling edge of the detection signal to fall within the period of the exposure-sensitive area of ​​the image sensor; if the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor, then controlling the rising edge and falling edge of the detection signal to fall within the period of the non-exposure area of ​​the image sensor.

[0036] In this embodiment, if the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor, then the entire period of the control detection signal can fall within the period of the exposure-insensitive area of ​​the image sensor. In this way, the detection signal can completely avoid the exposure-sensitive area of ​​the image sensor, thereby preventing interference noise from being acquired by the image sensor.

[0037] If the period of the detection signal equals the period of the exposure-insensitive area of ​​the image sensor, the exposure-insensitive area of ​​the image sensor may not be able to fully contain the detection signal, or due to timing accuracy issues, it may not be able to fully contain the detection signal. In this case, controlling the rising edge of the detection signal to avoid the exposure-sensitive area of ​​the image sensor can reduce interference noise in the detection signal that is acquired by the image sensor.

[0038] If the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor, the exposure-insensitive area of ​​the image sensor cannot fully accommodate the detection signal. In this case, the rising and falling edges of the detection signal are controlled to fall within the period of the exposure-insensitive area of ​​the image sensor, so that the entire period of the detection signal can fall within the period of the exposure-insensitive area of ​​the image sensor. In this way, the detection signal can completely avoid the exposure-sensitive area of ​​the image sensor, thereby preventing interference noise from being captured by the image sensor.

[0039] In some implementations, the driver chip includes a register; the register delays the output time of the detection signal so that both the falling edge and the rising edge of the detection signal fall within the period of the exposure-insensitive area of ​​the image sensor; or, the register delays the output time of the detection signal so that the rising edge of the detection signal falls within the period of the exposure-insensitive area of ​​the image sensor, and the falling edge of the detection signal falls within the period of the exposure-sensitive area of ​​the image sensor.

[0040] In this embodiment, the driver chip can control the timing of the detection signal through a register, so that the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor. This simplifies the structure of the driver chip and simplifies the method of controlling the start time of the detection signal. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0042] Figure 1 This is a schematic diagram of the structure of the electronic device provided in some embodiments of this application;

[0043] Figure 2 yes Figure 1 The electronic device shown is a schematic cross-sectional view of a portion of the device cut along point AA in some embodiments;

[0044] Figure 3A yes Figure 1 The diagram shown illustrates the structure of the camera module in some embodiments.

[0045] Figure 3B yes Figure 3A The image shown is a partial exploded view of the camera module in some embodiments;

[0046] Figure 4 yes Figure 3A The diagram shows a partial cross-sectional structure of the camera module cut along point BB in some embodiments.

[0047] Figure 5 yes Figure 3B The diagram shows the structure of the motor in some embodiments;

[0048] Figure 6 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0049] Figure 7A yes Figure 6 The diagram shows a structural schematic of the SMA line assembly in some embodiments;

[0050] Figure 7B yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0051] Figure 8A yes Figure 7B A partial structural diagram of the conductive path is shown.

[0052] Figure 8B yes Figure 7BA top view of the conductive path of the motor shown;

[0053] Figure 9A yes Figure 7B A partial structural diagram of the conductive path is shown.

[0054] Figure 9B yes Figure 7B A top view of the conductive path of the motor shown;

[0055] Figure 10A yes Figure 7B A partial structural diagram of the conductive path is shown.

[0056] Figure 10B yes Figure 7B A top view of the conductive path of the motor shown;

[0057] Figure 11A yes Figure 7B A partial structural diagram of the conductive path is shown.

[0058] Figure 11B yes Figure 7B A top view of the conductive path of the motor shown;

[0059] Figure 12A yes Figure 6 The diagram shown is a structural schematic of the base in some embodiments;

[0060] Figure 12B yes Figure 12A The diagram shows the structure of the base from another angle;

[0061] Figure 13 yes Figure 12A The base shown is a partial structural exploded view in some embodiments;

[0062] Figure 14 yes Figure 12A The diagram shows a partial cross-sectional structure of the base cut along CC in some embodiments.

[0063] Figure 15A yes Figure 6 The diagram shown is a structural schematic of the image stabilization bracket in some embodiments;

[0064] Figure 15B yes Figure 15A The diagram shows the structure of the image stabilization bracket at another angle;

[0065] Figure 16 yes Figure 15A The image stabilization bracket shown is an exploded view of a portion of its structure in some embodiments;

[0066] Figure 17 yes Figure 15AThe image stabilization bracket shown is a schematic diagram of a partial cross-sectional structure cut along DD in some embodiments.

[0067] Figure 18 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0068] Figure 19 yes Figure 18 The diagram shows a partial structural view of the motor from another angle.

[0069] Figure 20 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0070] Figure 21 Figure 5 The diagram shows a partial exploded view of the motor in some embodiments.

[0071] Figure 22 yes Figure 21 An assembly diagram of a portion of the motor's structure is shown.

[0072] Figure 23 yes Figure 5 The motor shown is a partial structural top view in some embodiments;

[0073] Figure 24 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0074] Figure 25 yes Figure 18 The diagram shows a partial cross-sectional view of the motor structure cut along EE in some embodiments.

[0075] Figure 26A yes Figure 6 The diagram shown is a structural schematic of the focusing bracket at another angle in some embodiments.

[0076] Figure 26B yes Figure 26A The diagram shows the structure of the focusing bracket at another angle;

[0077] Figure 27A yes Figure 5 The diagram shows a partial structural schematic of the motor from another angle in some embodiments;

[0078] Figure 27B yes Figure 27A The diagram shows a partial structural view of the motor from another angle.

[0079] Figure 28 yes Figure 5The diagram shows a partial structural schematic of the motor in some embodiments;

[0080] Figure 29 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0081] Figure 30 yes Figure 28 The diagram shows a partial cross-sectional view of the motor structure taken along FF in some embodiments.

[0082] Figure 31 yes Figure 5 The diagram shows a partial exploded view of the motor in some embodiments.

[0083] Figure 32 yes Figure 5 The diagram shows a partial structural schematic of the motor in some embodiments;

[0084] Figure 33 yes Figure 31 The diagram shows a partial structural view of the motor from another angle.

[0085] Figure 34 yes Figure 3A The diagram shows a partial structural schematic of the camera module in some embodiments;

[0086] Figure 35 yes Figure 32 The diagram shows a partial structural view of the motor cut along point GG.

[0087] Figure 36 yes Figure 5 The diagram shows a partial exploded view of the motor in some embodiments.

[0088] Figure 37 yes Figure 5 The diagram shows a partial cross-sectional view of the motor taken along HH in some embodiments.

[0089] Figure 38 This is an imaging timing diagram of the image sensor of the camera module in some embodiments;

[0090] Figure 39 This is a flowchart of a camera module control method provided in an embodiment of this application. Figure 1 ;

[0091] Figure 40 This is a flowchart of a camera module control method provided in an embodiment of this application. Figure 2 ;

[0092] Figure 41It is the correspondence between the timing of the pulse signals of the driver chip and the imaging timing of the image sensor. Figure 1 ;

[0093] Figure 42 It is the correspondence between the timing of the pulse signals of the driver chip and the imaging timing of the image sensor. Figure 2 ;

[0094] Figure 43 This is flowchart three of a control method for a camera module provided in an embodiment of this application;

[0095] Figure 44 This is a flowchart of a camera module control method provided in an embodiment of this application. Figure 4 . Specific Implementation

[0096] The embodiments of this application are described below with reference to the accompanying drawings.

[0097] In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an electrical connection or a mechanical connection. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. "Movable connection" refers to a connection where the relative positional relationship can change after connection.

[0098] The term "one-piece molding" refers to the process of forming one of two parts, in which the part is connected to the other part without the need for further processing (such as bonding, welding, snap-fit, screw connection) to join the two parts together.

[0099] The directional terms mentioned in the embodiments of this application, such as "top," "bottom," "inner," "outer," and "side," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0100] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.

[0101] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0102] References or "some embodiments" as described in this specification mean that one or more embodiments of this application include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in some embodiments," "in other embodiments," and "in other embodiments" appearing in different parts of this specification do not necessarily refer to the same embodiments, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0103] The terms “including,” “have,” and their variations all mean “including but not limited to,” unless otherwise specifically emphasized.

[0104] The terms "parallel" and "perpendicular" are relative to the current technological level, not absolute mathematical definitions. Slight deviations are permissible; approximations of parallelism or perpendicularity are acceptable. For example, "A and B are parallel" means that A and B are parallel or approximately parallel, with the angle between them ranging from 0° to 10°. Similarly, "A and B are perpendicular" means that A and B are perpendicular or approximately perpendicular, with the angle between them ranging from 80° to 100°.

[0105] It is understood that the specific embodiments described herein are merely illustrative of related embodiments and not intended to limit the scope of those embodiments. Furthermore, it should be noted that, for ease of description, only the parts relevant to the embodiments are shown in the accompanying drawings.

[0106] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0107] The present application will now be described in detail with reference to the accompanying drawings and embodiments.

[0108] Please see Figure 1 , Figure 1This is a schematic diagram of the structure of the electronic device 1000 provided in this application in some embodiments.

[0109] In some embodiments, the electronic device 1000 may be a mobile phone, tablet personal computer, laptop computer, personal digital assistant (PDA), camera, personal computer, laptop computer, in-vehicle equipment, wearable device, augmented reality (AR) glasses, AR helmet, virtual reality (VR) glasses, or VR helmet, or other devices with camera functions. Figure 1 The electronic device 1000 of the embodiment shown is illustrated using a mobile phone as an example.

[0110] Please refer to the following: Figure 1 and Figure 2 , Figure 2 yes Figure 1 The illustrated electronic device 1000 is shown as a partial cross-sectional view cut along point AA in some embodiments.

[0111] In some embodiments, the electronic device 1000 may include a camera module 100, a device housing 200, and a screen 300. The camera module 100 may be a rear-facing camera module or a front-facing camera module. It should be noted that... Figure 1 The accompanying drawings below only schematically illustrate some components included in the electronic device 1000; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 As well as the accompanying drawings below. Furthermore, when the electronic device 1000 is a device of some other form, the electronic device 1000 may not include the screen 300.

[0112] The device housing 200 may include a frame 201 and a rear cover 202. The rear cover 202 is fixed to the frame 201. For example, the rear cover 202 may be fixedly connected to the frame 201 by means of adhesive, snap-fit, or other methods. The rear cover 202 may also be integrally formed with the frame 201, that is, the rear cover 202 and the frame 201 are a single integral structure.

[0113] In some embodiments, the screen 300 may be located on the side of the bezel 201 away from the back cover 202. In this case, the screen 300 and the back cover 202 may be located on opposite sides of the bezel 201. The screen 300, the bezel 201, and the back cover 202 together enclose the interior of the electronic device 1000. The interior of the electronic device 1000 can be used to house components of the electronic device 1000, such as a battery, receiver, or microphone. The screen 300 may be a flat screen or a curved screen.

[0114] For example, the camera module 100 may be located inside the electronic device 1000. The camera module 100 may be located on the side of the screen 300 facing the rear cover 202. The rear cover 202 may have a light-transmitting hole 203. The shape of the light-transmitting hole 203 is not limited to the following. Figure 1 The schematic diagram shows a circle. The light-transmitting hole 203 connects the interior of the electronic device 1000 to the exterior. Light from outside the electronic device 1000 can enter the interior through the light-transmitting hole 203. The camera module 100 can capture the light entering the interior of the electronic device 1000.

[0115] Please refer to the following: Figures 3A to 4 , Figure 3A yes Figure 1 The diagram shown is a structural schematic of the camera module 100 in some embodiments. Figure 3B yes Figure 3A The image shown is a partial exploded view of the camera module 100 in some embodiments. Figure 4 yes Figure 3A The diagram shows a partial cross-sectional view of the camera module 100 cut along BB in some embodiments.

[0116] In some embodiments, the camera module 100 includes a motor 1, a lens 2, a circuit board 3, an image sensor 4, and a driver chip 5. For example, the lens 2 is mounted on the motor 1. The lens 2 can be used to capture ambient light. The optical axis of the lens 2 can be parallel to the Z-axis. The optical axis of the lens 2 and the optical axis of the camera module 100 can be the same direction.

[0117] For example, the image sensor 4 can be fixedly connected to and electrically connected to the circuit board 3. The circuit board 3 can be located on the bottom side of the motor 1 and fixedly connected to the base 11. The image sensor 4 can be located on the light-emitting side of the lens 2. It is understood that light originates from the light-transmitting aperture 203 of the electronic device 1000 (see [reference]). Figure 2 The light enters the camera module 100, passes through the lens, and reaches the image sensor 4. The image sensor 4 converts the image information carried by the light into an electrical signal. It is understood that in this application, the light-incident side of the lens of the motor 1 is defined as the "top side", and the light-exit side of the lens is defined as the "bottom side".

[0118] For example, the driver chip 5 can be fixedly connected to the image sensor 4 and electrically connected to the image sensor 4. In some other embodiments, the driver chip 5 can also be fixedly connected to other locations on the motor 1, which is not strictly limited in this application.

[0119] It is understood that the camera module 100 may include more or fewer components. For example, the camera module 100 may also include a module circuit board 3, and / or an image sensor 4, and / or electronic components, and / or filters, and / or a variable aperture, etc.

[0120] It is understood that, for ease of description, the width direction of the camera module 100 is defined as the Y-axis, the length direction as the X-axis, and the height direction as the Z-axis, with the X, Y, and Z axes being perpendicular to each other. In other embodiments, the coordinate system of the camera module 100 can be flexibly set according to specific actual needs.

[0121] It is understood that motor 1 can be a focusing motor 1. In this case, motor 1 can control the movement of lens 2 along the Z-axis to achieve autofocus (AF). Motor 1 can also be an image stabilization motor 1. In this case, motor 1 can control the movement of lens 2 along a plane perpendicular to the Z-axis (i.e., the XY plane). When the camera module 100 collects ambient light, if the electronic device 1000 shakes in the XY plane due to external forces, motor 1 can control the movement of lens 2 in the XY plane to counteract the shake caused by lens 2 in the XY plane, thereby avoiding or reducing the positional offset of lens 2 caused by shake. In other words, the camera module 100 of this application can control the movement of lens 2 in the XY plane through motor 1 to achieve optical image stabilization (OIS) of the camera module 100, thereby improving the image quality of the camera module 100. Motor 1 can also be a motor 1 that integrates image stabilization and focusing. In this way, motor 1 can achieve both autofocus and optical image stabilization by controlling lens 2. This application describes an embodiment where motor 1 is an integrated image stabilization and focusing motor. In this application, the driver chip 5 can be used to output image stabilization control signals and focus control signals to motor 1.

[0122] It is understood that motor 1 can be a motor 1 driven by the force generated by the interaction of a coil and a magnetic component. The driving force of motor 1 can be a force used to drive lens 2 to focus, and / or a force used to drive lens 2 to stabilize image. When motor 1 is an integrated image stabilization and focusing system, the force driving lens 2 to focus and the force driving lens 2 to stabilize image can be different, but at least one of these forces must be a force generated by the interaction of a coil and a magnetic component. For example, the force driving lens 2 to focus is a force generated by the interaction of a coil and a magnetic component, while the force driving lens 2 to stabilize image can be the stretching force of a shape memory alloy (SMA), or a force generated by other structural components (e.g., the force generated by the interaction of a coil and a magnetic component).

[0123] The above text, with reference to the accompanying drawings, provides a general overview of the structure of the camera module 100. The following text, with reference to the accompanying drawings, will describe the structure of the motor 1 in detail.

[0124] Please refer to the following: Figure 5 and Figure 6 , Figure 5 yes Figure 3B The diagram shown is a structural schematic of motor 1 in some embodiments. Figure 6 yes Figure 5 The diagram shows a partial structural schematic of motor 1 in some embodiments.

[0125] In some embodiments, the motor 1 includes a base 11, a carrier assembly 12, an SMA cable assembly 13, a first spring 141, a second spring 142, a focusing drive mechanism 15, a ball bearing assembly 16, a connector 17, and a housing 18. The carrier assembly 12 can be used to mount the lens 2 (see [link to documentation]). Figure 3B The carrier assembly 12 may include an image stabilization bracket 121 and a focusing bracket 122. The focusing drive mechanism 15 may include a first focusing coil 151, a first focusing magnetic element 152, a second focusing coil 153, a second focusing magnetic element 154, a focusing circuit board 155, and a focusing sensor 156. The housing 18 may include a top cover 181 and a bottom cover 182. The housing 18 may have a through hole 180. Figure 3A As shown, part of the structure of lens 2 can be exposed through the through hole 180 of housing 18.

[0126] Understandable, Figure 6 The accompanying drawings below only schematically illustrate some of the components included in motor 1. The actual shape, size, location, and construction of these components are not subject to change. Figure 6 As defined in the accompanying drawings below. It is understood that the motor 1 may include more or fewer components; for example, mounting the motor 1 may or may not include the housing 18 and / or the connector 17.

[0127] Please see Figure 7A , Figure 7A yes Figure 6 The diagram shows the structure of the SMA line assembly 13 in some embodiments.

[0128] In some embodiments, the SMA wire assembly 13 may include four SMA wires 131, four fixed claws 132, and two movable claws 133. The four fixed claws 132 and the two movable claws 133 may be made of conductive material or form a conductive structure.

[0129] For example, the two movable jaws 133 are a first movable jaw 133a and a second movable jaw 133b. The first movable jaw 133a may include a first main body 1331a, a first connecting end 1332a, and a second connecting end 1333a, with the first main body 1331a connected between the first connecting end 1332a and the second connecting end 1333a. The second movable jaw 133b may include a second main body 1331b, a third connecting end 1332b, and a fourth connecting end 1333b, with the second main body 1331b connected between the third connecting end 1332b and the fourth connecting end 1333b.

[0130] In some embodiments, one end of each of the two SMA lines 131 is connected to the first movable claw 133a, and one end of each of the other two SMA lines 131 is connected to the second movable claw 133b. It is understood that, in this embodiment, two of the four SMA lines 131 may be connected to the same movable claw 133, and the other two SMA lines 131 may be connected to another movable claw 133.

[0131] For example, the four SMA lines 131 can be a first SMA line 131a, a second SMA line 131b, a third SMA line 131c, and a fourth SMA line 131d. The first SMA line 131a and the second SMA line 131b can be two adjacent SMA lines 131. One end of the first SMA line 131a and one end of the second SMA line 131b are respectively connected to the first movable claw 133a. For example, one end of the first SMA line 131a can be connected to the first connecting end 1332a of the first movable claw 133a, and one end of the second SMA line 131b can be connected to the second connecting end 1333a of the first movable claw 133a. The third SMA line 131c and the fourth SMA line 131d can be two adjacent SMA lines 131. One end of the third SMA line 131c and one end of the fourth SMA line 131d are respectively connected to the second movable claw 133b. For example, one end of the third SMA line 131c can be connected to the third connection end 1332b of the second movable claw 133b, and one end of the fourth SMA line 131d can be connected to the fourth connection end 1333b of the second movable claw 133b.

[0132] In some embodiments, the other ends of the four SMA lines 131 are connected to four fixing claws 132 in a one-to-one correspondence. For example, the four fixing claws 132 are a first fixing claw 132a, a second fixing claw 132b, a third fixing claw 132c, and a fourth fixing claw 132d. The other end of the first SMA line 131a is connected to the first fixing claw 132a. The other end of the second SMA line 131b is connected to the second fixing claw 132b. The other end of the third SMA line 131c can be connected to the third fixing claw 132c. The other end of the fourth SMA line 131d is connected to the fourth fixing claw 132d.

[0133] Please refer to the following: Figure 7A and Figure 7B , Figure 7B yes Figure 5 The diagram shows a partial structural schematic of motor 1 in some embodiments.

[0134] In some embodiments, the motor 1 includes a first conductive insert 111, a second conductive insert 112, and a third conductive insert 123. The number of second conductive inserts 112 is four.

[0135] In some embodiments, the first conductive insert 111 is electrically connected to one end of four SMA lines 131 via the third conductive insert 123, and the four SMA lines 131 are connected to four second conductive inserts 112 in a one-to-one correspondence.

[0136] For example, the first reed 141 is electrically connected to the first conductive insert 111 and the third conductive insert 123.

[0137] For example, the third conductive insert 123 includes a first sub-insertion 1231 and a second sub-insertion 1232. One end of the first sub-insertion 1231 is connected to a first movable claw 133a. For example, one end of the first sub-insertion 1231 can be connected to the first main body portion 1331a of the first movable claw 133a. It is understood that the first sub-insertion 1231 can be electrically connected to the first SMA line 131a and the second SMA line 131b via the first movable claw 133a. One end of the second sub-insertion 1232 is connected to the second movable claw 133b. For example, one end of the second sub-insertion 1232 can be connected to the second main body portion 1331b of the second movable claw 133b. It is understood that the second sub-insertion 1232 can be electrically connected to the third SMA line 131c and the fourth SMA line 131d via the second movable claw 133b.

[0138] For example, the first spring 141 may include a first end 1411, a second end 1412, and a third end 1413. The second end 1412 and the third end 1413 of the first spring 141 are both connected to the first end 1411. The first end 1411 of the first spring 141 is connected to the first conductive insert 111. The second end 1412 of the first spring 141 is connected to the other end of the first sub-insertion 1231. The third end 1413 of the first spring 141 is connected to the other end of the second sub-insertion 1232.

[0139] Understandably, the first conductive insert 111 can be electrically connected to the third conductive insert 123 via the first spring 141, thereby electrically connecting one end of the four SMA wires 131. Specifically, the first conductive insert 111 can be electrically connected to the first sub-insert 1231 via the first spring 141, thereby electrically connecting the first SMA wire 131a and the second SMA wire 131b. At the same time, the first conductive insert 111 can also be electrically connected to the second sub-insert 1232 via the first spring 141, thereby electrically connecting the third SMA wire 131c and the fourth SMA wire 131d.

[0140] For example, one end of each of the four second conductive inserts 112 is connected to one of the four fixing claws 132. It can be understood that the four second conductive inserts 112 can be connected to the other ends of the four SMA wires 131 in a one-to-one correspondence via the four fixing claws 132. For example, the four second conductive inserts 112 are respectively a third sub-insertion 112a, a fourth sub-insertion 112b, a fifth sub-insertion 112c, and a sixth sub-insertion 112d. The third sub-insertion 112a is electrically connected to the first SMA wire 131a. The fourth sub-insertion 112b is electrically connected to the second SMA wire 131b. The fifth sub-insertion 112c is electrically connected to the third SMA wire 131c. The sixth sub-insertion 112d is electrically connected to the fourth SMA wire 131d.

[0141] Please continue reading. Figure 7A and Figure 7B In some embodiments, a conductive path 10 is formed by sequentially connecting a first conductive insert 111, a third conductive insert 123, an SMA wire 131, and a second conductive insert 112. For example, the first conductive insert 111 can be connected to the third conductive insert 123 via a first spring 141. The third conductive insert 123 can be connected to the SMA wire 131 via a movable claw 133. An SMA wire 131 can be connected to a corresponding second conductive insert 112 via a fixed claw 132.

[0142] Conductive path 10 is a reversing path. It can be understood that conductive path 10 can be reversed at at least one location with an acute angle in the opposite direction. When conductive path 10 is energized, the current in conductive path 10 can change direction at at least one location, so that currents in opposite directions can be formed in conductive path 10.

[0143] In this application, motor 1 uses a pulse width modulation (PWM) signal to drive SMA line 131, meaning SMA line 131 transmits the PWM signal. The PWM signal generates a periodic electromagnetic radiation signal. If this periodic electromagnetic radiation signal couples to adjacent signal lines, it will cause electromagnetic interference (EMI) to the nearby signals. Since the SMA line 131 is located close to the image sensor 4, to reduce the risk of the PWM electromagnetic radiation signal interfering with the image sensor 4, this application sets the conductive path 10 to which each SMA line 131 belongs as a folded-back path. This ensures that when the conductive path 10 is energized, the current flowing through the conductive path 10 does not form a loop or a loop-like loop. Furthermore, because the conductive path 10 is a folded-back path, the magnetic field generated by the round-trip current on the conductive path 10 can be canceled out. Thus, the periodic electromagnetic radiation signal generated by the PWM will not strongly interfere with the image sensor 4 and affect the electrical signal generated by the image sensor 4, thereby improving the imaging effect of the image sensor 4.

[0144] It is understood that in this embodiment, the two SMA lines 131 share a movable claw 133 to electrically connect to a sub-insertion of the third conductive insert 123. This results in fewer structural components and a simpler structure for the conductive path 10; furthermore, the larger connection surface between the movable claw 133 and the sub-insertion improves the reliability of the electrical connection between the third conductive insert 123 and the movable claw 133. For example, two adjacent SMA lines 131 can share the same movable claw 133, making the structure of the conductive path 10 more reasonable and simple.

[0145] In this application, four SMA lines 131 and four second conductive inserts 112 can each correspond to four conductive paths 10. For example, the four conductive paths 10 are a first conductive path 101, a second conductive path 102, a third conductive path 103, and a fourth conductive path 104. Specifically, the first SMA line 131a and the third sub-insert 112a correspond to the first conductive path 101. The second SMA line 131b and the fourth sub-insert 112b correspond to the second conductive path 102. The third SMA line 131c and the fifth sub-insert 112c correspond to the third conductive path 103. The fourth SMA line 131d and the sixth sub-insert 112d correspond to the fourth conductive path 104. All four conductive paths 10 are foldback paths.

[0146] For example, there is one first conductive insert 111 and one first spring 141. The four conductive paths 10 can share one first conductive insert 111 and one first spring 141, which reduces the number of structural components of the conductive path 10 and makes the structure simpler.

[0147] It is understood that in the above embodiments, the first reed 141 forms part of the conductive path 10. In some other embodiments, the motor 1 may not include the first reed 141. In this case, the first conductive insert 111 can be indirectly connected to the third conductive insert 123 through other conductive structures, or directly connected to the third conductive insert 123.

[0148] It is understood that in the above embodiments, the third conductive insert 123 includes a first sub-insertion 1231 and a second sub-insertion 1232 spaced apart, and the first sub-insertion 1231 and the second sub-insertion 1232 are respectively electrically connected to the first conductive insert 111. In some other embodiments, the third conductive insert 123 may also be other conductive structures, for example, the third conductive insert 123 may be an integral structural component. The first conductive insert 111 is electrically connected to the first conductive insert 111. One end of the third conductive insert 123 may be connected to two SMA lines 131, and the other end may be connected to two other SMA lines 131.

[0149] In some other embodiments, the motor 1 may not include the movable claw 133. In this case, one end of the four SMA wires 131 can be indirectly connected to the third conductive insert 123 through other conductive structures, or directly connected to the third conductive insert 123.

[0150] In some other embodiments, the motor 1 may not include the fixing claw 132. In this case, the other end of the four SMA wires 131 can be indirectly connected to the corresponding second conductive insert 112 through other conductive structures, or directly connected to the corresponding second conductive insert 112.

[0151] Please refer to the following: Figure 8A and Figure 8B , Figure 8A yes Figure 7B The diagram shows a partial structural schematic of conductive path 10. Figure 8B yes Figure 7B A top view of the conductive path 10 of the motor 1 shown. Exemplary. Figure 8A The diagram mainly shows the structure of the first conductive path 101. Figure 8B The dashed lines and arrows in the diagram illustrate the current flow when the first conductive path 101 is energized.

[0152] In some embodiments, a first conductive insert 111, a first spring 141, a first sub-insert 1231, a first SMA wire 131a, a first movable claw 133a, a first fixed claw 132a, and a third sub-insert 112a are connected in sequence to form a first conductive path 101. When the first conductive path 101 is energized, current can flow sequentially through the first conductive insert 111, the first spring 141, the first sub-insert 1231, the first SMA wire 131a, the first movable claw 133a, the first fixed claw 132a, and the third sub-insert 112a.

[0153] In this embodiment, when the first conductive path 101 is energized, the current flowing through the first conductive path 101 will not form a loop or a loop similar to a loop. Furthermore, since the first conductive path 101 is a foldback path, the magnetic field generated by the round-trip current on the first conductive path 101 can be canceled out, thereby reducing the risk of electromagnetic interference from the PWM signal on the first SMA line 131a to the image sensor 4.

[0154] Please refer to the following: Figure 9A and Figure 9B , Figure 9A yes Figure 7B The diagram shows a partial structural schematic of conductive path 10. Figure 9B yes Figure 7B A top view of the conductive path 10 of the motor 1 shown. Exemplary. Figure 9A The diagram mainly shows the structure of the second conductive path 102. Figure 9B The direction of current when the second conductive path 102 is energized is schematically marked with dashed lines and arrows.

[0155] In some embodiments, a second conductive path 102 is formed by sequentially connecting a first conductive insert 111, a first spring 141, a first sub-insert 1231, a first movable claw 133a, a first SMA wire 131a, a first fixed claw 132a, and a third sub-insert 112a. When the second conductive path 102 is energized, current can flow sequentially through the first conductive insert 111, the first spring 141, the first sub-insert 1231, the first movable claw 133a, the second SMA wire 131b, the first fixed claw 132a, and the third sub-insert 112a.

[0156] In this embodiment, when the second conductive path 102 is energized, the current flowing through the second conductive path 102 will not form a loop or a loop similar to a loop. Furthermore, since the second conductive path 102 is a foldback path, the magnetic field generated by the round-trip current on the second conductive path 102 can be canceled out, thereby reducing the risk of electromagnetic interference from the PWM signal on the second SMA line 131b to the image sensor 4.

[0157] Please refer to the following: Figure 10A and Figure 10B , Figure 10A yes Figure 7B The diagram shows a partial structural schematic of conductive path 10. Figure 10B yes Figure 7B A top view of the conductive path 10 of the motor 1 shown. Exemplary. Figure 10A The diagram mainly shows the structure of the third conductive path 103. Figure 10B The direction of current when the third conductive path 103 is energized is schematically marked with dashed lines and arrows.

[0158] In some embodiments, a third conductive path 103 is formed by sequentially connecting a first conductive insert 111, a first spring 141, a second sub-insert 1232, a second movable claw 133b, a third SMA wire 131c, a third fixed claw 132c, and a fifth sub-insert 112c. When the third conductive path 103 is energized, current can flow sequentially through the first conductive insert 111, the first spring 141, the second sub-insert 1232, the second movable claw 133b, the third SMA wire 131c, the third fixed claw 132c, and the fifth sub-insert 112c.

[0159] In this embodiment, when the third conductive path 103 is energized, the current flowing through the third conductive path 103 will not form a loop or a loop similar to a loop. Furthermore, since the third conductive path 103 is a foldback path, the magnetic field generated by the round-trip current on the third conductive path 103 can be canceled out, thereby reducing the risk of electromagnetic interference from the PWM signal on the third SMA line 131c to the image sensor 4.

[0160] Please refer to the following: Figure 11A and Figure 11B , Figure 11A yes Figure 7B The diagram shows a partial structural schematic of conductive path 10. Figure 11B yes Figure 7B A top view of the conductive path 10 of the motor 1 shown. Exemplary. Figure 11A The diagram mainly shows the structure of the fourth conductive path 104. Figure 11B The direction of current when the fourth conductive path 104 is energized is schematically marked with dashed lines and arrows.

[0161] In some embodiments, a fourth conductive path 104 is formed by sequentially connecting a first conductive insert 111, a first spring 141, a second sub-insert 1232, a second movable claw 133b, a fourth SMA wire 131d, a fourth fixed claw 132d, and a sixth sub-insert 112d. When the fourth conductive path 104 is energized, current can flow sequentially through the first conductive insert 111, the first spring 141, the second sub-insert 1232, the second movable claw 133b, the fourth SMA wire 131d, the fourth fixed claw 132d, and the sixth sub-insert 112d.

[0162] In this embodiment, when the fourth conductive path 104 is energized, the current flowing through the fourth conductive path 104 will not form a loop or a loop similar to a loop. Furthermore, since the fourth conductive path 104 is a foldback path, the magnetic field generated by the round-trip current on the fourth conductive path 104 can be canceled out, thereby reducing the risk of electromagnetic interference from the PWM signal on the fourth SMA line 131d to the image sensor 4.

[0163] It is understood that, in this embodiment, the end of the first conductive insert 111 furthest from the first spring 141 can be used to connect to the positive terminal of the driving circuit. The end of the second conductive insert 112 furthest from the SMA line 131 can be used to connect to the negative terminal of the driving circuit. It is understood that the driving circuit is a circuit that provides signals from the driving chip 5 to the SMA line 131. The driving chip 5 can input electrical signals to the SMA lines 131 corresponding to the four conductive paths 10 through the driving circuit. For example, the driving chip 5 inputs driving signals and detection signals to the four SMA lines 131 respectively. The driving signal can be used to control the SMA line 131 to deform under energization, while the detection signal can be used to detect the deformation of the SMA line 131.

[0164] Please refer to the following: Figures 12A to 13 , Figure 12A yes Figure 6 The diagram shown is a structural schematic of the base 11 in some embodiments. Figure 12B yes Figure 12A The diagram shows the structure of the base 11 from another angle. Figure 13 yes Figure 12A The base 11 shown is a partial exploded view in some embodiments.

[0165] In some embodiments, the base 11 may include a base plate 113, a first conductive insert 111, and a second conductive insert 112. The first conductive insert 111 is as described above. Figure 7B The first conductive insert 111 is shown. There are four second conductive inserts 112, which are described above. Figure 7B The four second conductive inserts 112 are shown.

[0166] For example, the base plate 113 may include four sides. The four sides are a first side 1131, a second side 1132, a third side 1133, and a fourth side 1134 connected in sequence. The first side 1131, the second side 1132, the third side 1133, and the fourth side 1134 may together form a first mounting hole 1130.

[0167] For example, the base plate 113 may further include four corner portions. The four corner portions are designated as a first corner portion 1135a, a second corner portion 1135b, a third corner portion 1135c, and a fourth corner portion 1135d. The first corner portion 1135a can connect to the first side portion 1131 and the second side portion 1132. The second corner portion 1135b can connect to the second side portion 1132 and the third side portion 1133. The third corner portion 1135c can connect to the third side portion 1133 and the fourth side portion 1134. The fourth corner portion 1135d can connect to the fourth side portion 1134 and the first side portion 1131.

[0168] For example, the base plate 113 may include a first surface 113a, a second surface 113b, and a side surface 113c. The first surface 113a and the second surface 113b of the base plate 113 may be disposed facing away from each other. The side surface 113c of the base plate 113 is connected between the first surface 113a and the second surface 113b. The side surface 113c of the base plate 113 may surround the first mounting hole 1130.

[0169] For example, the base plate 113 may be provided with a first protrusion 1136 and a second protrusion 1137. The first protrusion 1136 and the second protrusion 1137 protrude from the first surface 113a of the base plate 113. The first protrusion 1136 and the second protrusion 1137 are spaced apart. For example, the first protrusion 1136 may be located at the fourth corner 1135d. The second protrusion 1137 may be located at the second corner 1135b. In this case, the first protrusion 1136 and the second protrusion 1137 may be located at diagonal positions of the base plate 113. In some other examples, the first protrusion 1136 and / or the second protrusion 1137 may also be located at other positions of the base plate 113, which is not strictly limited in this application.

[0170] Please refer to the following: Figure 12A , Figure 13 and Figure 14 , Figure 14 yes Figure 12A The diagram shows a partial cross-sectional structure of the base 11 cut along CC in some embodiments.

[0171] In some embodiments, at least a portion of the first conductive insert 111 may be embedded in the base plate 113, and one end of the first conductive insert 111 may be exposed through a first edge 1131 of the base plate 113. Exemplarily, one end of the first conductive insert 111 may be located at the first edge 1131 and exposed through the side surface 113c and the second surface 113b of the base plate 113. In other examples, one end of the first conductive insert 111 may also be exposed through other locations on the base plate 113, which is not strictly limited in this application.

[0172] For example, the other end of the first conductive insert 111 may extend from the first edge 1131 of the base plate 113 to the fourth corner 1135d of the base plate 113 and be exposed through the surface of the first protrusion 1136. It is understood that the other end of the first conductive insert 111 may be exposed through the first surface 113a of the base plate 113.

[0173] Please refer to the following: Figure 12B , Figure 13 and Figure 14 In some embodiments, at least a portion of the second conductive insert 112 may be embedded in the base plate 113, and one end of the second conductive insert 112 may be exposed through the first edge 1131 of the base plate 113. For example, one end of each of the four second conductive inserts 112 may be located at the first edge 1131 and exposed through the side 113c and the second surface 113b of the base plate 113. In other examples, one end of the second conductive insert 112 may also be exposed through other locations on the base plate 113; this application does not impose strict limitations on this.

[0174] For example, the other ends of the four second conductive inserts 112 can be located at the first side 1131, the second side 1132, the third side 1133, and the fourth side 1134, respectively, and the other ends of all four second conductive inserts 112 can be exposed through the second surface 113b of the base plate 113. For example, the other end of the third sub-insert 112a can be located at the first side 1131 of the base plate 113. For example, the other end of the fourth sub-insert 112b can extend from the first side 1131 to the second side 1132. For example, the other end of the fifth sub-insert 112c can extend from the first side 1131, through the fourth side 1134, to the third side 1133. For example, the other end of the sixth sub-insert 112d can extend from the first side 1131 to the fourth side 1134.

[0175] Please see Figure 14In some embodiments, one end of the first conductive insert 111 and one end of the second conductive insert 112 may be exposed from the same side of the base 11. For example, one end of the first conductive insert 111 and one end of the second conductive insert 112 may both be exposed through the first edge 1131 of the base plate 113. In other examples, one end of the first conductive insert 111 and one end of the second conductive insert 112 may also be exposed through other locations on the base plate 113, which is not strictly limited in this application.

[0176] Please see Figures 15A to 16 , Figure 15A yes Figure 6 The diagram shown is a structural schematic of the image stabilization bracket 121 in some embodiments. Figure 15B yes Figure 15A The diagram shows the structure of the image stabilization bracket 121 from another angle. Figure 16 yes Figure 15A The image stabilization bracket 121 shown is a partial exploded view in some embodiments.

[0177] In some embodiments, the image stabilization bracket 121 may include a bracket body 1211 and a third conductive insert 123. The third conductive insert 123 is as described above. Figure 7B The third conductive insert 123 is shown. It is understood that the image stabilization bracket 121 may include a first sub-insertion 1231 and a second sub-insertion 1232.

[0178] For example, the bracket body 1211 may include a first side 121a, a second side 121b, a third side 121c, and a fourth side 121d connected in sequence. The first side 121a, the second side 121b, the third side 121c, and the fourth side 121d can together form a second mounting hole 1210.

[0179] For example, the bracket body 1211 may include a first top surface 1212 and a first bottom surface 1213 disposed opposite to each other. The second mounting hole 1210 may penetrate through the first top surface 1212 and the first bottom surface 1213.

[0180] For example, the support body 1211 may include four connecting portions 1214. Each connecting portion 1214 may be recessed from a portion of the first top surface 1212 toward the first bottom surface 1213. The four connecting portions 1214 are respectively a first connecting portion 1214a, a second connecting portion 1214b, a third connecting portion 1214c, and a fourth connecting portion 1214d. The first connecting portion 1214a may be located on the first side 121a. The second connecting portion 1214b may be located on the second side 121b. The third connecting portion 1214c may be located on the third side 121c. The fourth connecting portion 1214d may be located on the fourth side 121d.

[0181] For example, the support body 1211 may be provided with a clearance groove 1215. The opening of the clearance groove 1215 may be located on the first top surface 1212. The clearance groove 1215 may extend from the second side 121b of the support body 1211, sequentially through the third side 121c and the fourth side 121d to the first side 121a. In this case, the clearance groove 1215 may be approximately open-loop shaped.

[0182] For example, the bracket body 1211 may also be provided with a first mounting groove 1216a and a second mounting groove 1216b spaced apart. The openings of both the first mounting groove 1216a and the second mounting groove 1216b face the second mounting hole 1210. The first mounting groove 1216a and the second mounting groove 1216b may be arranged opposite to each other. For example, the first mounting groove 1216a may be located on the second side 121b. The second mounting groove 1216b may be located on the fourth side 121d.

[0183] For example, the support body 1211 may also be provided with a first receiving groove 1217a and a second receiving groove 1217b spaced apart. The openings of the first receiving groove 1217a and the second receiving groove 1217b both face the second mounting hole 1210. The first receiving groove 1217a and the second receiving groove 1217b also both penetrate the first top surface 1212 and the first bottom surface 1213. The first receiving groove 1217a and the second receiving groove 1217b may be located at diagonal positions of the support body 1211. For example, the first receiving groove 1217a may be located at the connection between the first side 121a and the second side 121b. The second receiving groove 1217b may be located at the connection between the third side 121c and the fourth side 121d.

[0184] For example, the support body 1211 may have a first protrusion 1218a and a second protrusion 1218b. Both the first protrusion 1218a and the second protrusion 1218b protrude from the first bottom surface 1213. For example, the first protrusion 1218a and the second protrusion 1218b are spaced apart. For instance, the first protrusion 1218a may be located at the junction of the first side 121a and the second side 121b. The second protrusion 1218b may be located at the junction of the third side 121c and the fourth side 121d. In this case, the first protrusion 1218a and the second protrusion 1218b may be located at diagonal positions of the support body 1211.

[0185] For example, the support body 1211 may further include an abutment portion 1219. The abutment portion 1219 may protrude from the first bottom surface 1213 of the support body 1211. For example, the number of abutment portions 1219 may be three, and the three abutment portions 1219 are spaced apart. For example, one abutment portion 1219 may be located at the first side 121a of the support body 1211, one abutment portion 1219 may be located at the connection between the second side 121b and the third side 121c, and one abutment portion 1219 may be located at the connection between the third side 121c and the fourth side 121d.

[0186] Please refer to the following: Figure 15A , Figure 16 and Figure 17 , Figure 17 yes Figure 15A The image stabilization bracket 121 shown is a schematic diagram of a partial cross-sectional structure cut along DD in some embodiments.

[0187] In some embodiments, at least a portion of the third conductive insert 123 may be embedded within the support body 1211, and a portion of the third conductive insert 123 may be exposed through the first top surface 1212 of the support body 1211.

[0188] For example, one end of the first sub-insert 1231 may be located on the first side 121a of the support body 1211. For instance, one end of the first sub-insert 1231 may be located on the first connecting portion 1214a and exposed through the surface of the first connecting portion 1214a. It is understood that one end of the first sub-insert 1231 may be exposed through the first top surface 1212 of the support body 1211.

[0189] For example, one end of the second sub-insert 1232 may be located on the fourth side 121d. For instance, one end of the first sub-insert 1231 may be located on the fourth connecting portion 1214d and exposed through the surface of the fourth connecting portion 1214d. It is understood that one end of the second sub-insert 1232 may be exposed through the first top surface 1212 of the support body 1211.

[0190] Please refer to the following: Figure 15B , Figure 16 and Figure 17 In some embodiments, a portion of the third conductive insert 123 may be exposed through the first bottom surface 1213 of the support body 1211.

[0191] For example, the other end of the first sub-insertion 1231 may extend from the first side 121a to the junction of the first side 121a and the second side 121b. For instance, the other end of the first sub-insertion 1231 may be located at the first protrusion 1218a and exposed through the surface of the first protrusion 1218a. It is understood that the other end of the first sub-insertion 1231 may be exposed through the first bottom surface 1213 of the support body 1211.

[0192] For example, the other end of the second sub-insertion 1232 may extend from the fourth side 121d to the junction of the third side 121c and the fourth side 121d. For instance, the other end of the first sub-insertion 1231 may be located at the second protrusion 1218b and exposed through the surface of the second protrusion 1218b. It is understood that the other end of the second sub-insertion 1232 may be exposed through the first bottom surface 1213 of the support body 1211.

[0193] It is understood that the structure and position of the third conductive insert 123 can be adjusted according to requirements in this application. In the above embodiments, the third conductive insert 123 includes a first sub-insert 1231 and a second sub-insert 1232. A portion of the first sub-insert 1231 may be located on the first side 121a, and another portion may be located at the connection between the first side 121a and the second side 121b. A portion of the second sub-insert 1232 may be located on the fourth side 121d, and another portion may be located at the connection between the third side 121c and the fourth side 121d. In other embodiments, the third conductive insert 123 may also have other structures. The third conductive insert 123 may also be located at other positions on the support body 1211. This application does not impose strict limitations on this.

[0194] Please refer to the following: Figure 18 and Figure 19 , Figure 18 yes Figure 5 The diagram shown is a partial structural schematic of motor 1 in some embodiments. Figure 19 yes Figure 18 The diagram shows a partial structural view of the motor 1 from another angle. For example, Figure 18 and Figure 19 The assembly structure between the base 11 and the image stabilization bracket 121 is mainly shown.

[0195] In some embodiments, a portion of the image stabilization bracket 121 may be located on the top side of the base 11. In this case, a portion of the first bottom surface 1213 of the image stabilization bracket 121 may be disposed opposite to a portion of the first surface 113a of the base 11. For example, the second mounting hole 1210 of the image stabilization bracket 121 is disposed opposite to the first mounting hole 1130 of the base 11. In this case, the first side 121a, the second side 121b, the third side 121c, and the fourth side 121d of the image stabilization bracket 121 may be disposed corresponding to the first side 1131, the second side 1132, the third side 1133, and the fourth side 1134 of the base 11, respectively.

[0196] For example, a portion of the image stabilization bracket 121 may be located inside the base 11. For instance, the first protrusion 1218a and the second protrusion 1218b of the image stabilization bracket 121 may be located inside the base 11. For instance, the first receiving groove 1217a and the second receiving groove 1217b may be located inside the base 11.

[0197] Please refer to the following: Figure 19 and Figure 20 , Figure 20 yes Figure 5 The diagram shows a partial structural representation of motor 1 in some embodiments. Exemplary, Figure 20 The main illustration shows the assembly structure between the base 11, the image stabilization bracket 121, and the SMA line assembly 13.

[0198] In some embodiments, the SMA wire assembly 13 can be located on the bottom side of the base 11 and the image stabilization bracket 121. One end of each SMA wire 131 is fixedly connected to the image stabilization bracket 121, and the other end is fixedly connected to the base 11. The SMA wire 131 is made of shape memory alloy (SMA) material, such as nickel-titanium alloy. Shape memory alloy is a general term for a class of metals with shape memory effect. Shape memory alloys can completely eliminate the deformation that occurred at a lower temperature after heating, restoring their original shape before deformation. The basic principle of shape memory alloy materials is to heat the material to above a certain critical temperature for shape memory heat treatment (training), causing it to undergo a certain deformation. After cooling to form a martensitic phase, when it is heated again above the critical temperature, the low-temperature martensitic phase transforms into a high-temperature austenitic phase (i.e., a reverse transformation occurs), thereby restoring the state remembered before deformation. In this embodiment, when the SMA line 131 is energized, the heat generated by the energization causes the temperature of the SMA line 131 to rise, which causes the SMA line 131 to contract and generate a resultant force, driving the image stabilization bracket 121 to move relative to the base 11.

[0199] In some embodiments, the retaining claw 132 is fixedly connected to the base 11. For example, the retaining claw 132 may be fixedly connected to the second surface 113b of the base plate 113.

[0200] For example, the four fixing claws 132 can be respectively configured to correspond one-to-one with the four sides of the base 11, and are electrically connected to the four second conductive inserts 112 of the base 11. For instance, the first fixing claw 132a can correspond to the first side 1131 and is electrically connected to the third sub-insertion 112a. The second fixing claw 132b can correspond to the second side 1132 and is electrically connected to the fourth sub-insertion 112b. The third fixing claw 132c can correspond to the third side 1133 and is electrically connected to the fifth sub-insertion 112c. The fourth fixing claw 132d can correspond to the fourth side 1134 and is electrically connected to the sixth sub-insertion 112d. It can be understood that, in this embodiment, the other ends of the four SMA lines 131 can be fixedly connected to the base 11 through the four fixing claws 132.

[0201] In some embodiments, the first movable claw 133a is fixedly connected to the image stabilization bracket 121 and electrically connected to the first sub-insertment 1231. Thus, one end of each of the two SMA cables 131 can be fixedly connected to the image stabilization bracket 121 via the first movable claw 133a and electrically connected to the first sub-insertment 1231. For example, one end of the first SMA cable 131a and one end of the third SMA cable 131c can be fixedly connected to the image stabilization bracket 121 via the first movable claw 133a and electrically connected to the first sub-insertment 1231.

[0202] For example, the first movable claw 133a can be fixedly connected to the first bottom surface 1213 of the bracket body 1211.

[0203] For example, the first main body portion 1331a of the first movable claw 133a can be fixedly connected to the first protrusion 1218a of the image stabilization bracket 121 and electrically connected to the first sub-insertion 1231. At this time, the first movable claw 133a can correspond to the first corner portion 1135a of the base 11. The first connecting end 1332a of the first movable claw 133a can be disposed opposite to the first side portion 1131 of the base 11, and the second connecting end 1333a can be disposed opposite to the second side portion 1132 of the base 11.

[0204] In some embodiments, the second movable claw 133b is fixedly connected to the image stabilization bracket 121 and electrically connected to the second sub-insertment 1232. Thus, one end of each of the other two SMA cables 131 can be fixedly connected to the image stabilization bracket 121 via the second movable claw 133b and electrically connected to the second sub-insertment 1232. For example, one end of the third SMA cable 131c and one end of the fourth SMA cable 131d can be fixedly connected to the image stabilization bracket 121 via the second movable claw 133b and electrically connected to the second sub-insertment 1232.

[0205] For example, the second movable claw 133b can be fixedly connected to the first bottom surface 1213 of the bracket body 1211.

[0206] For example, the second main body portion 1331b of the second movable claw 133b can be fixedly connected to the second protrusion 1218b of the image stabilization bracket 121 and electrically connected to the second sub-insertion 1232. In this case, the second movable claw 133b can correspond to the third triangular portion 1135c of the base 11. The third connecting end 1332b of the second movable claw 133b can be disposed opposite to the third side portion 1133 of the base 11, and the fourth connecting end 1333b can be disposed opposite to the fourth side portion 1134 of the base 11.

[0207] Please continue reading. Figure 19 and Figure 20 In some embodiments, the four SMA lines 131 can be respectively configured to correspond to the first side 1131, the second side 1132, the third side 1133, and the fourth side 1134 of the base 11. For example, the first SMA line 131a can correspond to the first side 1131. The second SMA line 131b can correspond to the second side 1132. The third SMA line 131c can correspond to the third side 1133. The fourth SMA line 131d can correspond to the fourth side 1134.

[0208] The first SMA line 131a and the third SMA line 131c can extend in a first direction. When the first SMA line 131a and / or the third SMA line 131c are heated by electricity, they contract, generating a corresponding pulling force on the image stabilization bracket 121, causing the image stabilization bracket 121 to move relative to the base 11 in the first direction. The second SMA line 131b and the fourth SMA line 131d can extend in a second direction. When the second SMA line 131b and / or the fourth SMA line 131d are heated by electricity, they contract, generating a corresponding pulling force on the image stabilization bracket 121, causing the image stabilization bracket 121 to move relative to the base 11 in the second direction.

[0209] In this embodiment, four SMA cables 131 can drive the image stabilization bracket 121 to move relative to the base 11 along a first direction and a second direction. The second direction intersects with the first direction. For example, the first direction can be the X-axis direction, and the second direction can be the Y-axis direction.

[0210] It is understood that in this application, since the SMA cable 131 contracts when heated, it exerts a corresponding pulling force on the image stabilization bracket 121. Therefore, the camera module can control the electrical signals of the four SMA cables 131 to make the resultant force exerted by the four SMA cables 131 on the image stabilization bracket 121 oriented in the desired direction, so that the image stabilization bracket 121 can carry the lens 2 (see [link]). Figure 3B The camera module moves in the desired direction and position, enabling it to achieve image stabilization by panning the lens 2.

[0211] In other embodiments, the SMA cable assembly 13 may also be located at other positions on the base 11 and the image stabilization bracket 121, and this application is not strictly limited to this. For example, the SMA cable assembly 13 may also be located on the top side of the base 11 and the image stabilization bracket 121. In this case, the fixing claw 132 may be fixedly connected to the first surface 113a of the base plate 113. The first movable claw 133a and the second movable claw 133b may both be fixedly connected to the first top surface 1212 of the bracket body 1211.

[0212] Please refer to the following: Figure 21 and Figure 22 , Figure 21 Figure 5 The diagram shown is an exploded view of a portion of the structure of motor 1 in some embodiments. Figure 22 yes Figure 21 An assembly diagram of a portion of the structure of motor 1 is shown. Exemplary, Figure 21 and Figure 22 The structure of the base 11, the anti-shake bracket 121, the first spring 141 and the second spring 142 are mainly shown.

[0213] In some embodiments, both the first spring 141 and the second spring 142 are connected to the base 11 and the image stabilization bracket 121. The first spring 141 and the second spring 142 can provide an elastic force to move the image stabilization bracket 121 back to its equilibrium position when the image stabilization bracket 121 moves relative to the base 11 and leaves its equilibrium position. The first spring 141 is... Figure 7B The first reed 141 is shown. For the specific structure of the first reed 141, please refer to [reference needed]. Figure 7B The relevant descriptions will not be repeated here.

[0214] For example, the first end 1411 of the first spring 141 can be fixedly connected to the first protrusion 1136 of the base 11 and electrically connected to the first conductive insert 111. At this time, the first end 1411 of the first spring 141 can correspond to the fourth corner 1135d of the base 11. It is understood that in the embodiments of this application, the first spring 141 can be fixedly connected to the first surface 113a of the base plate 113 of the base 11, and one end of the SMA line 131 is fixedly connected to the second surface 113b of the base plate 113. At this time, the first spring 141 and the SMA line 131 can be located on opposite sides of the base 11. On the one hand, the first spring 141 and the SMA line 131 can make reasonable use of the space on the base 11, so that the structure of the conductive path 10 is more reasonable and the structure of the motor 1 is simpler; on the other hand, it can avoid the first spring 141 and the SMA line 131 from interfering with each other during the anti-shake process.

[0215] For example, the second end 1412 of the first spring 141 is fixedly connected to the first side 121a of the image stabilization bracket 121 and electrically connected to the first sub-insertion 1231. For instance, the second end 1412 of the first spring 141 can be fixedly connected to the first connecting portion 1214a of the image stabilization bracket 121. It is understood that the second end 1412 of the first spring 141 can correspond to the first side 1131 of the base 11. The first conductive insert 111 can be electrically connected to the first sub-insertion 1231 via the first spring 141.

[0216] For example, the third end 1413 of the first spring 141 is fixedly connected to the fourth side 121d of the image stabilization bracket 121 and electrically connected to the second sub-insertion 1232. For instance, the third end 1413 may be fixedly connected to the fourth connecting portion 1214d of the image stabilization bracket 121. It is understood that the third end 1413 of the first spring 141 may correspond to the fourth side 1134 of the base 11. The first conductive insert 111 can be electrically connected to the second sub-insertion 1232 via the first spring 141. In this embodiment, the first spring 141 forms part of the conductive path 10. The first conductive insert 111 can be electrically connected to the third conductive insert 123 via the first spring 141.

[0217] In this embodiment, the first spring 141 can be used to provide an elastic force to move the image stabilization bracket 121 back to the equilibrium position when the image stabilization bracket 121 moves relative to the base 11 and leaves the equilibrium position; on the other hand, it can also form part of the conductive path 10 to electrically connect the first conductive insert 111 to the third conductive insert 123. The first spring 141 has the effect of "one thing serving multiple purposes".

[0218] It is understood that in this embodiment, the first spring 141 can be fixedly connected to the first top surface 1212 of the support body 1211 of the image stabilization bracket 121, while one end of the SMA cable 131 is fixedly connected to the first bottom surface 1213 of the support body 1211. At this time, the first spring 141 and the SMA cable 131 can be located on opposite sides of the image stabilization bracket 121. On the one hand, the first spring 141 and the SMA cable 131 can make reasonable use of the space on the image stabilization bracket 121, making the structure of the conductive path 10 more reasonable and the structure of the motor 1 more simple. On the other hand, it can avoid the first spring 141 and the SMA cable 131 interfering with each other during the image stabilization process.

[0219] For example, the second spring 142 may include a first end 1421, a second end 1422, and a third end 1423. Both the second end 1422 and the third end 1423 of the second spring 142 are connected to the first end 1421. The first end 1421 of the second spring 142 can be fixedly connected to the second protrusion 1137 of the base 11. The second end 1422 of the second spring 142 can be fixedly connected to the second side 121b of the image stabilization bracket 121, for example, the second end 1422 of the second spring 142 can be fixedly connected to the second connecting portion 1214b of the image stabilization bracket 121. The third end 1423 of the second spring 142 can be fixedly connected to the third side 121c of the image stabilization bracket 121, for example, the third end 1423 of the second spring 142 can be fixedly connected to the third connecting portion 1214c of the image stabilization bracket 121.

[0220] Please see Figure 23 , Figure 23 yes Figure 5 The motor 1 shown is a partial top view in some embodiments. Exemplary, Figure 23 The main illustration shows the relative positions of the four conductive paths 10 and the base 11. Among them, Figure 23 In (a), (b), (c), and (d), the base 11 is indicated by dashed boxes, and the current flow of each conductive path 10 is indicated by dashed lines and arrows.

[0221] In some embodiments, the conductive path 10 to which each SMA line 131 belongs folds back at the edge corresponding to the SMA line 131. It is understood that "conductive path 10 folds back at the edge corresponding to the SMA line 131" means that when the conductive path 10 to which each SMA line 131 belongs is energized, the conductive path 10 generates a current in the opposite direction at the edge corresponding to the SMA line 131, but it is not limited to the current necessarily changing direction at the edge corresponding to the SMA line 131. For example, the current in the conductive path 10 can change direction at the edge corresponding to the SMA line 131 to generate a current in the opposite direction at the edge corresponding to the SMA line 131; the current in the conductive path 10 can also change direction at the corner connecting the edge to generate a current in the opposite direction at the edge corresponding to the SMA line 131.

[0222] In this embodiment, one end of the first conductive insert 111 and one end of the second conductive insert 112 are both exposed from the first edge 1131 of the base plate 113. When the conductive path 10 is energized, current can flow from the first edge 1131 of the base plate 113 to each SMA line 131, and then bend back at the corresponding edge of each SMA, so that the current returns to the first edge 1131, thereby preventing the current in the conductive path 10 from forming a loop or a similar loop. In addition, after the current flows through the SMA line 131, it bends back at the corresponding edge of the SMA, and does not bend back again after flowing through other edges. Thus, the conductive path 10 is shorter. The structure of the conductive path 10 and the motor 1 is relatively simple.

[0223] like Figure 23 As shown in (a), the second end 1412 of the first reed 141 and the first sub-insertion 1231 are both correspondingly disposed with respect to the first side portion 1131. The first conductive path 101 corresponds to the first side portion 1131 of the base 11 and is folded back sequentially at the fourth corner portion 1135d, the first corner portion 1135a, and the first side portion 1131. For example, the current direction of the first SMA line 131a is opposite to that of the first sub-insertion 1231 at the first side portion 1131. The current on the first SAM line is opposite to that on the third sub-insertion 112a. It can be understood that the current on the first conductive path 101 can be folded back three times at the first side portion 1131.

[0224] like Figure 23 As shown in (b), the second conductive path 102 corresponds to the first side 1131 and the second side 1132 of the base 11, and folds back at the fourth corner 1135d and the second side 1132. Exemplarily, the current direction of the second SMA line 131b is opposite to that of the fourth sub-insertion 112b at the second side 1132. It is understood that the current on the second conductive path 102 can fold back once at the second side 1132.

[0225] like Figure 23As shown in (c), the third end 1413 of the first reed 141 and the second sub-insertion 1232 are both corresponding to the fourth side 1134. The third conductive path 103 corresponds to the first side 1131, the fourth side 1134, and the third side 1133 of the base 11, and is folded back at the third side 1133. For example, the current direction of the third SMA line 131c and the fifth sub-insertion 112c is opposite at the third side 1133. It is understood that the current on the third conductive path 103 can be folded back once at the third side 1133.

[0226] like Figure 23 As shown in (d), the fourth conductive path 104 corresponds to the first side 1131 and the fourth side 1134 of the base 11, and folds back at the third corner 1135c. Exemplarily, the current direction of the fourth SMA line 131d is opposite to that of the second sub-insertion 1232 at the fourth side 1134. It is understood that the current on the fourth conductive path 104 can fold back once at the fourth side 1134.

[0227] It is understood that in this application, the four SMA wires 131 of the motor 1 can be electrically connected to the conductive inserts in the base 11 via the third conductive insert 123 (e.g., the first sub-insert 1231, the second sub-insert 1232) and the first spring 141 within the image stabilization bracket 121, forming conductive paths 10 respectively. Through the conductive paths 10 provided in this embodiment, all four conductive paths 10 of the motor 1 are foldback paths, avoiding the formation of loops or similar loops, thereby reducing the risk of electromagnetic interference to the image sensor 4 during PWM driving. Furthermore, the conductive paths 10 are relatively short, and their structure is simple and reasonable. The reliability of the conductive paths 10 and the motor 1 is good.

[0228] Please refer to the following: Figure 24 and Figure 25 , Figure 24 yes Figure 5 The diagram shown is a partial structural schematic of motor 1 in some embodiments. Figure 25 yes Figure 18 The diagram shows a partial cross-sectional view of the motor 1 as shown in some embodiments, cut along the EE. Exemplary, Figure 24 The image mainly shows the assembly structure between the base 11 and the ball bearing group 16.

[0229] In some embodiments, the image stabilization bracket 121 can be connected to the base 11 via a ball bearing group 16. Using the ball bearing group 16 to achieve a movable connection between the image stabilization bracket 121 and the base 11 reduces frictional resistance between the base 11 and the image stabilization bracket 121 while ensuring sufficient support, thus improving the smoothness of the movement process of the image stabilization bracket 121 connected to the base 11.

[0230] For example, the base 11 may be provided with receiving grooves 1138. The opening of the receiving groove 1138 may be located on the first surface 113a of the base plate 113. For example, the number of receiving grooves 1138 may be three, and the three receiving grooves 1138 are arranged at intervals. For example, the number of ball bearing groups 16 may be three, and the three ball bearing groups 16 are arranged one-to-one with the three receiving grooves 1138 of the base 11. The three ball bearing groups 16 may be disposed in the corresponding receiving grooves 1138.

[0231] For example, the abutment portion 1219 of the image stabilization bracket 121 can abut against the ball bearing group 16. In this case, the image stabilization bracket 121 can be connected to the base 11 via the ball bearing group 16. The image stabilization bracket 121 can move relative to the base 11 in the XY plane. For example, the three abutment portions 1219 of the image stabilization bracket 121 can be correspondingly arranged with three ball bearing groups 16, and each of the three abutment portions 1219 can abut against its corresponding ball bearing group 16.

[0232] In other examples, the number of ball bearings 16 and receiving grooves 1138 may be one, two, or more than three, respectively. This application does not impose strict limitations on this.

[0233] In some other embodiments, the motor 1 may not include the ball bearing assembly 16. The stabilization bracket 121 may also be connected to the base 11 via other structures (e.g., rollers).

[0234] Please refer to the following: Figure 26A and Figure 26B , Figure 26A yes Figure 6 The diagram shown is a structural schematic of the focusing bracket 122 from another angle in some embodiments. Figure 26B yes Figure 26A The diagram shows the structure of the focusing bracket 122 at another angle.

[0235] In some embodiments, the focusing bracket 122 may include a second top surface 1221 and a second bottom surface 1222 disposed opposite to each other. Exemplarily, the focusing bracket 122 may be generally frame-shaped. The focusing bracket 122 may be provided with a third mounting hole 1220, which may penetrate through the second top surface 1221 and the second bottom surface 1222 of the focusing bracket 122.

[0236] For example, the focusing bracket 122 also includes an outer surface 1223. The outer surface 1223 of the focusing bracket 122 is connected between the second top surface 1221 and the second bottom surface 1222, and is disposed around the third mounting hole 1220. The focusing bracket 122 may also be provided with a third mounting groove 1224 and a fourth mounting groove 1225. The third mounting groove 1224 and the fourth mounting groove 1225 may be located on opposite sides of the second mounting hole 1210. The openings of the third mounting groove 1224 and the fourth mounting groove 1225 may both be located on the outer surface 1223 of the focusing bracket 122.

[0237] For example, the focusing bracket 122 may also be provided with a fifth mounting slot 1226. The opening of the fifth mounting slot 1226 may be located on the outer side 1223 of the focusing bracket 122. The fifth mounting slot 1226 is spaced apart from the third mounting slot 1224 and the fourth mounting slot 1225.

[0238] For example, the focusing bracket 122 may also be provided with a third receiving groove 1227a and a fourth receiving groove 1227b spaced apart. The third receiving groove 1227a and the fourth receiving groove 1227b may be located on opposite sides of the second mounting hole 1210. The third receiving groove 1227a and the fourth receiving groove 1227b are spaced apart from the third mounting groove 1224, the fourth mounting groove 1225, and the fifth mounting groove 1226. The openings of the third receiving groove 1227a and the fourth receiving groove 1227b can penetrate the second top surface 1221 and the second bottom surface 1222 of the focusing bracket 122 and extend to the outer side surface 1223 of the focusing bracket 122.

[0239] Please refer to the following: Figure 27A and Figure 27B , Figure 27A yes Figure 5 The diagram shows a partial structural view of the motor 1 from another angle in some embodiments. Figure 27B yes Figure 27A The diagram shows a partial structural view of the motor 1 from another angle. For example, Figure 27A and Figure 27B The assembly structure between the focusing bracket 122, the first focusing magnetic component 152, and the second focusing magnetic component 154 is mainly shown.

[0240] In some embodiments, the first focusing magnetic element 152 may be mounted in the third mounting slot 1224 of the focusing bracket 122 (see [link]). Figure 26AThe second focusing magnetic element 154 can be mounted in the fourth mounting slot 1225 of the focusing bracket 122. Both the first focusing magnetic element 152 and the second focusing magnetic element 154 can be magnets or magnetic components. The first focusing magnetic element 152 can include at least two opposite polarity directions. For example, the first focusing magnetic element 152 can include three magnets arranged along the Z-axis. It is understood that the polarity direction can be from the North Pole (N) to the South Pole (S), or from the South Pole (S) to the North Pole (N). The second focusing magnetic element 154 includes at least two opposite polarity directions. For example, the second focusing magnetic element 154 can include three magnets arranged along the Z-axis.

[0241] Please refer to the following: Figure 28 and Figure 29 , Figure 28 yes Figure 5 The diagram shown is a partial structural schematic of motor 1 in some embodiments. Figure 29 yes Figure 5 The diagram shows a partial structural representation of motor 1 in some embodiments. Exemplary, Figure 28 The main illustration shows the assembly structure between the base 11, the image stabilization bracket 121, the first focusing coil 151, and the second focusing coil 153. Figure 29 The assembly structure between the base 11, the image stabilization bracket 121, and the focusing bracket 122 is mainly shown.

[0242] In some embodiments, the focus bracket 122 is movably connected to the image stabilization bracket 121.

[0243] For example, the focusing bracket 122 can be located within the second mounting hole 1210 of the image stabilization bracket 121. The third receiving groove 1227a of the focusing bracket 122 can be correspondingly provided with the first receiving groove 1217a of the image stabilization bracket 121. The fourth receiving groove 1227b of the focusing bracket 122 can be correspondingly provided with the second receiving groove 1217b of the image stabilization bracket 121. A portion of the connector 17 can be located within the third receiving groove 1227a, and a portion can be located within the fourth receiving groove 1227b. In this way, the focusing bracket 122 can slide relative to the connector 17 in a third direction, thereby allowing it to move relative to the image stabilization bracket 121 and the base 11 in a third direction. It is understood that in this application, the connector 17 can be fixedly connected to the image stabilization bracket 121 and slidably connected to the focusing bracket 122; or, the connector 17 can be fixedly connected to the focusing bracket 122 and slidably connected to the image stabilization bracket 121. This application does not impose strict limitations on this.

[0244] For example, there can be two connectors 17, which can be installed in the first receiving groove 1217a and the second receiving groove 1217b of the focusing bracket 122, respectively. For example, the connector 17 can be a sliding column.

[0245] In some other examples, the number of connectors 17 may be one or more.

[0246] In some other examples, connector 17 may also be other structural components such as ball bearings.

[0247] For example, the fifth mounting slot 1226 of the focus bracket 122 may be exposed relative to the image stabilization bracket 121.

[0248] Please refer to the following: Figure 29 and Figure 30 , Figure 30 yes Figure 28 The diagram shows a partial cross-sectional view of the motor 1 shown in some embodiments, cut along FF.

[0249] In some embodiments, the first focusing coil 151 may be installed in the first mounting slot 1216a of the image stabilization bracket 121. The first focusing coil 151 may be disposed facing the first focusing magnetic element 152, for driving the focusing bracket 122 to move relative to the image stabilization bracket 121 along a third direction. Wherein, the first focusing coil 151 facing the first focusing magnetic element 152 means that the winding plane of the first focusing coil 151 faces the first focusing magnetic element 152. For example, the winding plane of the first focusing coil 151 may be parallel to the XZ plane. The first direction and the second direction both intersect with the third direction. Exemplarily, the third direction may be the Z-axis direction.

[0250] For example, the second focusing coil 153 can be installed in the second mounting slot 1216b. The second focusing coil 153 can be positioned facing the second focusing magnet 154 to drive the focusing bracket 122 to move relative to the image stabilization bracket 121 in a third direction.

[0251] Understandably, driven by the first focusing coil 151, the first focusing magnetic element 152, the second focusing coil 153, and the second focusing magnetic element 154, the focusing bracket 122 can move relative to the base 11 in a third direction with good stability.

[0252] In some other embodiments, the motor 1 may also exclude the second focusing coil 153 and the second focusing magnetic element 154.

[0253] Please refer to the following: Figure 31 and Figure 32 , Figure 31 yes Figure 5 The diagram shown is an exploded view of a portion of the structure of motor 1 in some embodiments. Figure 32 yes Figure 5 The diagram shows a partial structural schematic of motor 1 in some embodiments.

[0254] In some embodiments, the focusing circuit board 155 is fixedly connected to the base 11 and the image stabilization bracket 121.

[0255] For example, the focusing circuit board 155 may include a first portion 1551, a second portion 1552, and a connecting segment connecting the first portion 1551 and the second portion 1552. The first portion 1551 of the focusing circuit board 155 is fixedly connected to the base 11, for example, the first portion 1551 of the focusing circuit board 155 may be fixedly connected to the side 113c of the base 11. For example, the first portion 1551 of the focusing circuit board 155 may be located on the third side 1133 of the base 11. In other examples, the first portion 1551 of the focusing circuit board 155 may also be located at other positions on the base 11, which is not strictly limited in this application.

[0256] The second portion 1552 of the focusing circuit board 155 is fixedly connected to the image stabilization bracket 121. For example, the first portion 1551 of the focusing circuit board 155 may be located on the third side 121c of the image stabilization bracket 121. In this case, the first portion 1551 and the second portion 1552 of the focusing circuit board 155 may face the same side of the base 11. For example, both the first portion 1551 and the second portion 1552 of the focusing circuit board 155 may face the side of the third side 1133 away from the first side 1131.

[0257] For example, a portion of the second portion 1552 of the focusing circuit board 155 may be disposed opposite to the focusing bracket 122. For instance, a portion of the second portion 1552 of the focusing circuit board 155 may be disposed opposite to the fifth mounting slot 1226 of the focusing bracket 122.

[0258] The connecting segment of the focusing circuit board 155 can be bent. The connecting segment may include a first connecting segment 1553 and a second connecting segment 1554. One end of the first connecting segment 1553 is connected to a first portion 1551 of the focusing circuit board 155, and the other end is connected to one end of the second connecting segment 1554. The other end of the second connecting segment 1554 is connected to a second portion 1552 of the focusing circuit board 155. The second connecting segment 1554 can be bent relative to the first connecting segment 1553.

[0259] For example, the first connecting segment 1553 is fixedly connected to the base 11. For instance, the first connecting segment 1553 may be fixedly connected to the side 113c of the base 11. For instance, the first connecting segment 1553 may surround a portion of the side 113c of the base 11. For instance, the first connecting segment 1553 may extend from the third side 1133 to the fourth side 1134 of the base 11 to connect to the second connecting segment 1554 of the focusing circuit board 155.

[0260] For example, the second connecting segment 1554 is fixedly connected to the image stabilization bracket 121. For instance, the second connecting segment 1554 may be fixedly connected to the clearance slot 1215 of the image stabilization bracket 121. For instance, the second connecting segment 1554 may surround a portion of the second mounting hole 1210. For instance, the second connecting segment 1554 may extend from the third side 121c to the fourth side 121d of the image stabilization bracket 121 to connect to the second portion 1552 of the focusing circuit board 155.

[0261] In this embodiment, by setting the connecting segment to a bent shape, and allowing the first connecting segment 1553 to extend a certain length around the side 113c of the base 11, the connecting segment can undergo a certain deformation when the focusing circuit board 155 is stretched during the movement of the image stabilization bracket 121 relative to the base 11. This avoids stress concentration on the focusing circuit board 155 and reduces the risk of breakage of the focusing circuit board 155.

[0262] Please refer to the following: Figure 32 and Figure 33 , Figure 33 yes Figure 31 The diagram shows a partial structure of motor 1 from another angle.

[0263] In some embodiments, a first portion 1551 of the focusing circuit board 155 is provided with a connection end 1550. The connection end 1550 of the focusing circuit board 155 is exposed from a first side of the base 11. One end of the first conductive insert 111 and one end of the second conductive insert 112 are exposed from a second side of the base 11. The first side and the second side of the base 11 are respectively two opposite sides of the base 11.

[0264] It is understood that in this embodiment, the connection end 1550 of the focusing circuit board 155 is located on the third side 1133 of the base 11. One end of the first conductive insert 111 and one end of the second conductive insert 112 are both located on the first side 1131 of the base 11. In this case, the first side of the base 11 is the side of the third side 1133 of the base 11 that is away from the first side 1131. The second side of the base 11 is the side of the first side 1131 of the base 11 that is away from the third side 1133. In other embodiments, the connection end 1550 of the focusing circuit board 155, the first conductive insert 111, and one end of the second conductive insert 112 may also be located at other positions on the base 11, and this application does not impose strict limitations on this.

[0265] Please refer to the following: Figure 33 and Figure 34 , Figure 34 yes Figure 3A The diagram shows a partial structural schematic of the camera module 100 in some embodiments.

[0266] In some embodiments, the driver chip 5 is electrically connected to the first conductive insert 111, the second conductive insert 112, and the focusing circuit board 155. In this embodiment, the driver chip 5 can transmit PWM signals to the SMA line 131 through the first conductive insert 111 and the second conductive insert 112. The driver chip 5 can also transmit internal integrated circuit (I2C) signals to the motor 1 through the focusing circuit. It is understood that the I2C signals can be used to control the focusing action of the motor 1.

[0267] For example, the driver chip 5 is electrically connected to one end of the first conductive insert 111 via the first trace 61, to one end of the second conductive insert 112 via the second trace 62, and to the connection terminal 1550 of the focusing circuit board 155 via the third trace 63. The first trace 61 and the second trace 62 can be led out from the second side of the base 11, and the third trace 63 can be led out from the first side of the base 11.

[0268] It is understandable that the first conductive insert 111 and the second conductive insert 112 transmit PWM signals. Since PWM generates periodic electromagnetic radiation signals, interference will occur if they couple to adjacent signal lines. For example, the PWM signal will interfere with the I2C signal on the focusing circuit board 155. In this embodiment, by exposing the connection terminal 1550 of the focusing circuit board 155 from the first side of the base 11, and exposing one end of the first conductive insert 111 and one end of the second conductive insert 112 from the second side of the base 11, the connection terminal 1550 of the focusing circuit board 155 can be kept away from one end of the first conductive insert 111 and one end of the second conductive insert 112. In this way, the PWM signals on the first conductive insert 111 and the second conductive insert 112 can be prevented from interfering with the I2C signal on the focusing circuit board 155, thereby driving the chip 5 to better control the focusing action of the motor 1 to achieve a better focusing effect.

[0269] Please see Figure 35 , Figure 35 yes Figure 32 The diagram shows a partial structural view of motor 1 cut along point GG.

[0270] In some embodiments, the focus sensor 156 is fixedly connected to the focus circuit board 155 and electrically connected to the focus circuit board 155. It is understood that the driver chip 5 can transmit signals to the focus sensor 156 through the focus circuit board 155.

[0271] For example, the focus sensor 156 can be fixedly connected to the second part 1552 of the focus circuit board 155. In this case, the focus sensor 156 can be positioned facing the focus bracket 122. The focus sensor 156 can be used to detect changes in the position of the focus bracket 122. For example, the focus sensor 156 can be used to detect changes in the position of the focus bracket 122 in the third direction. Thus, the camera module 100 can adjust the position of the focus bracket 122 based on the detection results of the focus sensor 156, thereby achieving a better focusing effect.

[0272] In this embodiment, since the I2C signal transmitted on the focusing circuit board 155 is not easily affected by the electromagnetic interference of the PWM signal, the focusing sensor 156 can more accurately determine the position of the focusing bracket 122, thereby better controlling the movement of the focusing bracket 122.

[0273] For example, the focus sensor 156 can be a Tunnel MagnetoResistance (TMR) sensor. The focus sensor 156 can be disposed opposite to the fifth mounting slot 1226 of the focus bracket 122. The motor 1 may also include a magnetic grating 157, which can be mounted within the fifth mounting slot 1226 of the focus bracket 122. In this case, the focus sensor 156 can be disposed opposite to the magnetic grating 157. When relative movement occurs between the focus sensor 156 and the magnetic grating 157, the focus sensor 156 can be used to sense changes in the position of the magnetic grating 157, thereby achieving the purpose of detecting changes in the position of the focus bracket 122.

[0274] In some other embodiments, the focus sensor 156 may also be another type of sensor, such as a photoelectric sensor. The motor 1 may also not include the magnetic grating 157.

[0275] Please refer to the following: Figure 36 and Figure 37 , Figure 36 yes Figure 5 The diagram shown is an exploded view of a portion of the structure of motor 1 in some embodiments. Figure 37 yes Figure 5 The diagram shows a partial cross-sectional view of the motor 1 cut along HH in some embodiments.

[0276] In some embodiments, the housing 18 may be mounted on the base 11. For example, the housing 18 may be fixedly connected to the base 11 by means of adhesive or other methods. Exemplarily, the housing 18 may be adapted to the shape of the motor 1. The housing 18 may be assembled and fitted with the base 11 to jointly encapsulate and protect the internal structure of the motor 1.

[0277] For example, the top cover 181 of the housing 18 is fixedly connected to the bottom cover 182, and the top cover 181 and the bottom cover 182 can together enclose the internal space 183. The internal structure of the motor 1 (including at least part of the base 11, the image stabilization bracket 121, and the focusing bracket 122) can be located in the internal space 183 of the housing 18.

[0278] For example, a through hole 180 of the housing 18 can be provided in the top cover 181. The through hole 180 can connect to the third mounting hole 1220. Part of the structure of the focusing bracket 122 can be exposed through the through hole 180 of the housing 18.

[0279] It is understood that in the above scheme, the camera module 100 may include a motor 1, an image sensor 4, and a driver chip 5. The motor 1 is an SMA motor 1, meaning the motor 1 may include an SMA line 131. The SMA line 131 is driven by a PWM signal to achieve image stabilization. The SMA line 131 transmits the signal when the PWM signal flips between high and low levels. Since PWM generates periodic electromagnetic radiation signals, these periodic electromagnetic radiation signals, through spatial coupling, can cause electromagnetic interference (EMI) to nearby signals. For example, the SMA line 131 is located very close to the image sensor 4. Due to electromagnetic coupling, this periodic electromagnetic radiation signal will strongly interfere with the image sensor 4, thus affecting the electrical signals generated by the image sensor 4. For instance, when the image stabilization of the motor 1 and the exposure of the image sensor 4 are simultaneously activated, it can cause stripe interference in the image formed by the image sensor 4.

[0280] Please see Figure 38 , Figure 38 This is an imaging timing diagram of the image sensor 4 of the camera module 100 in some embodiments.

[0281] When the camera module 100 is capturing images, the image sensor 4 continuously acquires images. The image sensor 4 is used to convert light signals into electrical signals. Each frame image generated by the image sensor 4 is obtained by sampling the light signals multiple times. Each frame image generated by the image sensor 4 corresponds to multiple signal acquisition cycles. In each signal acquisition cycle, the image sensor 4 performs a light-to-electrical signal conversion, converting the light signal into an electrical signal and outputting it. In the process of converting the light signal into an electrical signal, the image sensor 4 first converts the light signal into an analog signal, and then converts the analog signal into a digital signal. Therefore, the signal acquisition cycle of the image sensor 4 can also be called the analog-to-digital conversion (ADC) cycle. The time region outside the ADC cycle is the non-exposure zone of the image sensor 4. In other words, the camera module 100 does not capture images in the non-exposure zone of the image sensor 4.

[0282] Correlated double sampling (CDS) is a method to eliminate the influence of noise on image sensor 4. Within one ADC cycle, image sensor 4 performs CDS once, that is, two samples. The time difference between the start of the two CDS samples, i.e., the period interval between the two samples within one ADC cycle, can also be called the CDS interval. It should be understood that the ADC cycle is longer than the CDS interval.

[0283] Within one ADC cycle, the sampling time of image sensor 4 is the exposure-sensitive region of image sensor 4. In other words, the exposure-sensitive region includes the sampling time of image sensor 4. The time region outside of the sampling time of image sensor 4 can be called the exposure-insensitive region, or safe region. That is, in the exposure-insensitive region, image sensor 4 does not perform sampling.

[0284] During the two sampling cycles within an ADC cycle, the image sensor 4 collects the received light. If interference occurs during this time (including but not limited to interference generated by the driving signal and detection signal of the driving chip 5), the noise generated by the interference will be collected, and the interference may be reflected in the generated image, affecting the imaging effect. Therefore, this application provides a control method for the camera module 100, which reduces the interference of the detection signal on the image sensor 4 by controlling the period of the detection signal of the driving chip 5 to avoid the exposure-sensitive area of ​​the image sensor 4.

[0285] It is understood that the control method for the camera module 100 provided in this application can be applied to a camera module 100 including an SMA motor 1. The SMA motor 1 is a motor 1 driven by SMA lines 131 to achieve image stabilization and / or focusing, and the SMA lines 131 are driven by PWM signals. For example, the control method for the camera module 100 provided in this application can be applied to the camera module 100 of any of the above embodiments. In the above scheme, the motor 1 of the camera module 100 is a four-wire SMA motor, that is, the motor 1 includes four SMA lines 131, and the four SMA lines 131 are driven by PWM signals to achieve image stabilization. As another example, the control method for the camera module 100 provided in this application can also be applied to a camera module 100 including an eight-wire SMA motor 1. Understandably, an eight-line SMA motor can include eight SMA lines. These eight SMA lines can not only drive the lens of the motor to move in the XY plane, but also drive the lens of the motor to move in the Z-axis direction, thereby achieving the dual functions of optical image stabilization and focusing.

[0286] For ease of description, the following section will introduce a control method for the camera module 100 based on the aforementioned solution. Please refer to [link / reference]. Figure 39 , Figure 39 This is a flowchart of a control method for a camera module 100 provided in an embodiment of this application. Figure 1 .

[0287] The control methods for the camera module 100 include:

[0288] Step S10: The driver chip 5 obtains the imaging timing sequence of the image sensor 4. The imaging timing sequence includes the timing sequence of the non-exposure area, the timing sequence of the exposure-sensitive area, and the timing sequence of the exposure-insensitive area.

[0289] To facilitate the application of image sensor 4, image sensor 4 can output some timing signals. Timing signals can include synchronization signals. For example, if image sensor 4 uses row sampling, synchronization signals can include frame synchronization signals, horizontal synchronization (H-SYNC) signals, etc. Both H-SYNC and V-SYNC signals are pulse signals. Both types of synchronization signals are emitted periodically. The frame synchronization signal, also known as the frame start signal, column synchronization signal, or vertical synchronization (V-SYNC) signal, is used to indicate that image sensor 4 has begun acquiring a frame of image. In other words, image sensor 4 generates a V-SYNC signal at the beginning of each new image frame.

[0290] like Figure 38As shown, in this embodiment, the image processor can perform the first sampling after outputting a synchronization signal (e.g., a V-SYNC signal) and a delay time T. It can be understood that the delay time T can be greater than zero or equal to zero. When the delay time T is greater than zero, the image sensor 4 delays the start time of its exposure-sensitive and exposure-insensitive areas. When the delay time T is equal to zero, the image processor performs the first sampling simultaneously with the output synchronization signal.

[0291] When the camera module 100 is turned on, the motor 1 initializes, and the image sensor 4 can adjust and confirm the delay time T. It is understandable that once the delay time is determined, the timing of the non-exposure area, the timing of the exposure-sensitive area, and the timing of the exposure-insensitive area of ​​the image sensor 4 can also be determined.

[0292] It is understood that the driver chip 5 is electrically connected to the image sensor 4. For example, the synchronous (SYNC) signal port or interrupt signal port of the driver chip 5 can be connected to the port in the image sensor 4 used to output the V-SYNC signal. The SYNC signal port or interrupt signal port of the driver chip 5 can receive the synchronization signal, that is, the driver chip 5 can receive the V-SYNC input. Furthermore, the driver chip 5 can also obtain the delay time T from the image sensor 4. In this way, the driver chip 5 can determine the timing of the non-exposure area of ​​the image sensor 4 based on the V-SYNC signal and the delay time T, thereby obtaining the timing of the exposure-sensitive area and the exposure-non-sensitive area of ​​the image sensor 4. In other words, the driver chip 5 can obtain the imaging timing of the image sensor 4.

[0293] Step S20: The driving chip 5 outputs a driving signal and a detection signal to the SMA line 131 according to the imaging timing of the image sensor 4. The driving signal causes deformation of the SMA line 131, and the detection signal detects the deformation of the SMA line 131. The timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4, or the timing of the non-exposure area of ​​the image sensor 4.

[0294] In this embodiment, the driver chip 5 of the camera module 100 is electrically connected to the SMA line 131 and can output pulse signals to the SMA line 131. The pulse signals may include a driving signal for causing deformation of the SMA line 131 and a detection signal for detecting the deformation of the SMA line 131.

[0295] Understandably, based on the properties of SMA material, the length and cross-sectional area of ​​SMA wire 131 change with different temperatures, thus causing a change in the impedance of SMA wire 131. The deformation of SMA wire 131 can be determined by observing the changes in electrical properties caused by the change in impedance.

[0296] To determine the deformation of the SMA line 131, a detection signal can be directly applied to both ends of the SMA line 131 to measure the current flowing through it. The current flowing through the SMA line 131 forms a feedback signal, from which the deformation of the SMA line 131 can be determined. Alternatively, each SMA line 131 can be connected in series with a voltage divider resistor to divide the power supply. The voltage divider resistor can be a fixed resistor; that is, the SMA line 131 and a fixed resistor connected in series form a voltage divider circuit. Applying a voltage across the circuit formed by the SMA line 131 and the voltage divider resistor, the impedance of the SMA line 131 can be determined based on the voltage division. It is understood that the driver chip 5 performs analog-to-digital conversion on the acquired current or voltage signal to generate a feedback signal. The feedback signal reflects the deformation of the SMA line 131. Based on the correspondence between the feedback signal and the deformation of the SMA line 131, the deformation of the SMA line 131 can be determined.

[0297] In this embodiment, the driver chip 5 outputs a drive signal. When the current generated by the drive signal flows through the SMA line 131, the SMA line 131 heats up and deforms. By detecting the impedance change of the SMA line 131, the driver chip 5 can adjust the drive signal, thus controlling the deformation of the SMA line 131 more accurately. However, if the image sensor 4 is interfered with by the detection signal during two samplings within one ADC cycle, the noise generated by the interference will be collected, causing interference stripes to appear in the image generated by the image sensor 4.

[0298] In this embodiment, the driving chip 5 can adjust the start time of the detection signal period according to the imaging timing of the image sensor 4, so that the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4, or the timing of the detection signal corresponds to the timing of the non-exposure area of ​​the image sensor 4. In this way, the detection signal can avoid the exposure-sensitive area of ​​the image sensor 4, thereby preventing interference noise of the detection signal from being collected by the image sensor 4 and affecting the imaging effect of the image sensor 4.

[0299] In this embodiment, the driving chip 5 can adjust the start time of the detection signal according to the imaging timing of the image sensor 4 (including the timing of the non-exposure area, the timing of the exposure-sensitive area, and the timing of the exposure-insensitive area), so that the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4, or corresponds to the timing of the non-exposure area of ​​the image sensor 4. In other words, the driving chip 5 can output the detection signal in the non-exposure area of ​​the image sensor 4, or in the non-exposure area of ​​the image sensor 4.

[0300] Understandably, the synchronization signal and delay time of image sensor 4 can be used as trigger signals to reset the start position of the pulse signal period of driver chip 5, for example, to align the pulse signal with the synchronization signal. Resetting the start position of the pulse signal period does not change the length of the pulse signal period. After the reset, driver chip 5 continues to output pulse signals according to the previous pulse signal period and detection period.

[0301] Since image sensor 4 does not sample in either the exposure-insensitive area or the non-exposure area, it is insensitive to external interference in the exposure-insensitive area. Even if interference exists, it will not be displayed in the image because image sensor 4 does not sample in that area. Therefore, in the exposure-insensitive area, the drive signal and detection signal output of drive chip 5 do not affect the image quality. Furthermore, by outputting the detection signal from drive chip 5 in the exposure-insensitive area of ​​image sensor 4, this application avoids noise stripes in the generated image.

[0302] Please see Figure 40 , Figure 40 This is a flowchart of a control method for a camera module 100 provided in an embodiment of this application. Figure 2 .

[0303] In some embodiments, step S20 (the driver chip 5 outputs a driving signal and a detection signal to the SMA line 131 according to the imaging timing of the image sensor 4) includes:

[0304] Step S201: The driver chip 5 compares the period of the detection signal with the period of the exposure-insensitive area of ​​the image sensor 4.

[0305] In some embodiments, when comparing the period of the detection signal with the period of the exposure-insensitive area of ​​the image sensor 4, the driver chip 5 may first determine whether the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4.

[0306] After step S201, step S2011: If the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4, then control the rising edge and falling edge of the detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor 4.

[0307] Understandably, when the period of the detection signal is shorter than the period of the exposure-insensitive area of ​​the image sensor 4, the exposure-insensitive area of ​​the image sensor 4 can completely accommodate the detection signal. In this case, the entire period of the control detection signal can fall within the period of the exposure-insensitive area of ​​the image sensor 4. The detection signal can completely avoid the exposure-sensitive area of ​​the image sensor 4, thereby preventing interference noise from being acquired by the image sensor 4.

[0308] Please see Figure 41 , Figure 41 It is the correspondence between the timing of the pulse signal of the driver chip 5 and the imaging timing of the image sensor 4. Figure 1 .

[0309] Where 'a' represents the width of the drive signal and 'w' represents the width of the detection signal. The drive chip 5 periodically outputs a pulse signal, which includes both the drive signal and the detection signal, and 't' represents the length of the pulse signal period. In different control cycles, the width of the detection signal can be a fixed value, while the width of the drive signal can be the same or different. For example, the period of the detection signal is shorter than the period of the exposure-insensitive area of ​​the image sensor 4. In this case, the entire period of the detection signal falls within the period of the exposure-insensitive area of ​​the image sensor 4. The detection signal can completely avoid the exposure-sensitive area of ​​the image sensor 4, thereby preventing interference noise from being acquired by the image sensor 4.

[0310] In some examples, the driver chip 5 can output a detection signal in the latter half of the exposure-insensitive area of ​​the image sensor 4.

[0311] In some examples, the drive signal frequency output by the driver chip 5 can be 300kHz. The period of the detection signal output by the driver chip 5 can be 2μs. The period of the exposure-insensitive area of ​​the image sensor 4 can be 2.5μs. In this case, the period of the detection signal is shorter than the period of the exposure-insensitive area of ​​the image sensor 4. The driver chip 5 controls the rising and falling edges of the detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor 4. For example, the driver chip 5 controls the period of the first detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor 4.

[0312] In this embodiment, after determining that the period of the detection signal is not less than the period of the exposure-insensitive area of ​​the image sensor 4, the driving chip 5 then determines whether the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4.

[0313] Please continue reading. Figure 40After step S201: Step S2012: If the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4, then control the rising edge of the detection signal to fall within the period of the exposure-insensitive area of ​​the image sensor 4, and the falling edge of the detection signal to fall within the period of the exposure-sensitive area of ​​the image sensor 4.

[0314] Understandably, when the period of the detection signal equals the period of the exposure-insensitive area of ​​the image sensor 4, the exposure-insensitive area of ​​the image sensor 4 is insufficient to fully contain the detection signal, or due to timing accuracy issues, it risks not being able to fully contain the detection signal. In this case, controlling the rising edge of the detection signal to avoid the exposure-sensitive area of ​​the image sensor 4 can reduce interference noise in the detection signal being acquired by the image sensor 4.

[0315] Please see Figure 42 , Figure 42 It is the correspondence between the timing of the pulse signal of the driver chip 5 and the imaging timing of the image sensor 4. Figure 2 The frequency of the driving signal can be t, and the frequency of the detection signal can be w. The frequency t of the driving signal is less than the frequency w of the detection signal. For example, the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4. In this case, the rising edge of the detection signal can avoid the exposure-sensitive area of ​​the image sensor 4, thereby reducing the interference noise of the detection signal that is acquired by the image sensor 4.

[0316] For example, the falling edge of the detection signal can fall within the CDS period, so that the falling edge of the detection signal can be canceled by the CDS.

[0317] Understandably, after determining that the period of the detection signal is neither less than nor equal to the period of the exposure-insensitive area of ​​the image sensor 4, the driver chip 5 can determine that the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor 4.

[0318] Please continue reading. Figure 40 Following step S201: Step S2013: If the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor 4, then the rising and falling edges of the detection signal are controlled to fall within the period of the exposure-insensitive area of ​​the image sensor 4. In this case, the entire period of the detection signal can fall within the period of the exposure-insensitive area of ​​the image sensor 4. The detection signal can completely avoid the exposure-sensitive area of ​​the image sensor 4, thereby preventing interference noise from being acquired by the image sensor 4.

[0319] Understandably, when the driver chip 5 compares the period of the detection signal with the period of the exposure-insensitive area of ​​the image sensor 4, the judgment order and judgment type can be adjusted according to requirements. For example, Figure 40The driver chip 5 can first determine whether the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4. If the period of the detection signal is not less than the period of the exposure-insensitive area of ​​the image sensor 4, then it can determine whether the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4.

[0320] In other examples, the driver chip 5 may first determine whether the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4. If the period of the detection signal is not equal to the period of the exposure-insensitive area of ​​the image sensor 4, then it may determine whether the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4.

[0321] In other examples, the driver chip 5 can first determine whether the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4. If the period of the detection signal is not less than the period of the exposure-insensitive area of ​​the image sensor 4, then it can determine whether the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor 4.

[0322] In other examples, the driver chip 5 may first determine whether the period of the detection signal is greater than the period of the exposure-insensitive area of ​​the image sensor 4. If the period of the detection signal is not greater than the period of the exposure-insensitive area of ​​the image sensor 4, then it may determine whether the period of the detection signal is equal to the period of the exposure-insensitive area of ​​the image sensor 4; or, if the period of the detection signal is not greater than the period of the exposure-insensitive area of ​​the image sensor 4, then it may determine whether the period of the detection signal is less than the period of the exposure-insensitive area of ​​the image sensor 4.

[0323] In some embodiments, the driver chip 5 is provided with a register.

[0324] Please see Figure 43 , Figure 43 This is flowchart three of a control method for a camera module 100 provided in an embodiment of this application.

[0325] Step S20 (the driver chip 5 outputs a drive signal and a detection signal to the SMA line 131 according to the imaging timing of the image sensor 4) includes:

[0326] Step S202: Delay the output time of the detection signal in the register so that both the falling edge and the rising edge of the detection signal fall within the period of the exposure-insensitive area of ​​the image sensor 4.

[0327] For example, the driver chip 5 can obtain the delay time T of the image sensor 4 (see [link]). Figure 38This allows the register of the drive chip 5 to delay the output of the detection signal by a time T, so that both the falling edge and the rising edge of the detection signal fall within the period of the exposure-insensitive area of ​​the image sensor 4. In other words, the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4.

[0328] Please see Figure 44 , Figure 44 This is a flowchart of a control method for a camera module 100 provided in an embodiment of this application. Figure 4 .

[0329] Step S20 (the driver chip 5 outputs a drive signal and a detection signal to the SMA line 131 according to the imaging timing of the image sensor 4) includes:

[0330] Step S203: Delay the output time of the detection signal in the register so that the rising edge of the detection signal falls within the period of the exposure-insensitive area of ​​the image sensor 4, and the falling edge of the detection signal falls within the period of the exposure-sensitive area of ​​the image sensor 4.

[0331] For example, the driver chip 5 can obtain the delay time T of the image sensor 4 (see [link]). Figure 38 This allows the register of the drive chip 5 to delay the output of the detection signal by a time T, so that the rising edge of the detection signal falls within the period of the exposure-insensitive area of ​​the image sensor 4, and the falling edge of the detection signal falls within the period of the exposure-sensitive area of ​​the image sensor 4. In other words, the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4.

[0332] In this embodiment, the driver chip 5 can control the timing of the detection signal through a register, so that the timing of the detection signal corresponds to the timing of the exposure-insensitive area of ​​the image sensor 4. This results in a simple structure for the driver chip 5 and a relatively simple method for controlling the start time of the detection signal.

[0333] It is understood that all the above figures are exemplary illustrations of this application and do not represent the actual size of the product. Furthermore, the dimensional proportions between the components in the figures are not intended to limit the actual product of this application.

[0334] The above are merely some embodiments of this application, and the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A motor (1) characterized in that, The motor (1) comprises a base (11), an anti-shake support (121), four SMA wires (131) and a focusing support (122); Part of the anti-shake support (121) is located on the inner side of the base (11), one end of each SMA wire (131) is fixedly connected to the anti-shake support (121), and the other end is fixedly connected to the base (11), the SMA wire (131) can drive the anti-shake support (121) to move relative to the base (11) along a first direction and a second direction; the focusing support (122) is movably connected to the anti-shake support (121), and the focusing support (122) can move relative to the base (11) along a third direction; the first direction, the second direction and the third direction intersect with each other; The base (11) comprises a first conductive insert (111) and four second conductive inserts (112), the anti-shake support (121) comprises a third conductive insert (123), the first conductive insert (111) is electrically connected to one end of the four SMA wires (131) through the third conductive insert (123), and the other end of the four SMA wires (131) is connected to the four second conductive inserts (112) one by one; The first conductive insert (111), the third conductive insert (123), one SMA wire (131) and one second conductive insert (112) connected in sequence form a conductive path (10), and the conductive path (10) is a return path; The motor (1) further comprises a first reed (141), the first reed (141) comprises a first end (1411), a second end (1412) and a third end (1413), the first end (1411) is fixedly connected to the base (11) and electrically connected to the first conductive insert (111); the second end (1412) and the third end (1413) are both fixedly connected to the anti-shake support (121), and the second end (1412) and the third end (1413) are both electrically connected to the third conductive insert (123); The second end (1412) is electrically connected to two SMA wires (131) through the third conductive insert (123), and the third end (1413) is electrically connected to the other two SMA wires (131) through the third conductive insert (123).

2. The motor (1) according to claim 1, characterized in that The base (11) further comprises a bottom plate (113), the bottom plate (113) comprises a first edge portion (1131), a second edge portion (1132), a third edge portion (1133) and a fourth edge portion (1134) connected in sequence; The first conductive insert (111) and the second conductive insert (112) are at least partially embedded in the bottom plate (113), and one end of the first conductive insert (111) and one end of the second conductive insert (112) are exposed from the first edge portion (1131); Four SMA wires (131) are respectively arranged corresponding to the first edge (1131), the second edge (1132), the third edge (1133) and the fourth edge (1134), and the conductive path (10) to which each SMA wire (131) belongs is folded back at the edge corresponding to the SMA wire (131).

3. The motor (1) according to claim 2, characterized in that The third conductive insert (123) comprises a first sub-insert (1231) and a second sub-insert (1232); The second end (1412) is electrically connected to the first sub-insert (1231), and the third end (1413) is electrically connected to the second sub-insert (1232); the second end (1412) and the first sub-insert (1231) are arranged corresponding to the first edge (1131), and the first sub-insert (1231) is electrically connected to two SMA wires (131); The third end (1413) and the second sub-insert (1232) are arranged corresponding to the fourth edge (1134), and the second sub-insert (1232) is electrically connected to the other two SMA wires (131).

4. The motor (1) according to claim 3, characterized in that The motor (1) further comprises a first movable jaw (133a) and a second movable jaw (133b), and the first movable jaw (133a) and the second movable jaw (133b) are fixedly connected to the anti-shake bracket (121); The first movable jaw (133a) is electrically connected to the first sub-insert (1231), and one end of the two SMA wires (131) is respectively connected to the first movable jaw (133a); The second movable jaw (133b) is electrically connected to the second sub-insert (1232), and one end of the other two SMA wires (131) is respectively connected to the second movable jaw (133b).

5. The motor (1) according to claim 4, characterized in that The first movable jaw (133a) is located between the two adjacent SMA wires (131) and electrically connected to the two adjacent SMA wires (131); The second movable jaw (133b) is located between the other two adjacent SMA wires (131) and electrically connected to the other two adjacent SMA wires (131).

6. The motor (1) according to claim 4 or 5, characterized in that The bottom plate (113) further comprises a first corner (1135a), a third corner (1135c) and a fourth corner (1135d), the first corner (1135a) is connected between the first edge (1131) and the second edge (1132), the third corner (1135c) is connected between the third edge (1133) and the fourth edge (1134), and the fourth corner (1135d) is connected between the fourth edge (1134) and the first edge (1131); The first movable jaw (133a) corresponds to the first corner (1135a), the second movable jaw (133b) corresponds to the third corner (1135c), and the first spring (141) corresponds to the fourth corner (1135d). Four SMA wires (131) correspond to the first conductive path (101), the second conductive path (102), the third conductive path (103) and the fourth conductive path (104) respectively; The first conductive path (101) corresponds to the first edge (1131) and is folded back in sequence at the fourth corner (1135d), the first corner (1135a) and the first edge (1131); The second conductive path (102) corresponds to the first edge (1131) and the second edge (1132) and is folded back at the fourth corner (1135d) and the second edge (1132); The third conductive path (103) corresponds to the first edge (1131), the fourth edge (1134) and the third edge (1133) and is folded back at the third edge (1133); The fourth conductive path (104) corresponds to the first edge (1131) and the fourth edge (1134) and is folded back at the third corner (1135c).

7. A motor (1) according to claim 4 or 5, characterized in that The anti-shake support (121) further comprises a support body (1211), the support body (1211) comprises a first top surface (1212) and a first bottom surface (1213) arranged oppositely, the first spring (141) is fixedly connected to the first top surface (1212), and the first movable clamping jaw (133a) and the second movable clamping jaw (133b) are both fixedly connected to the first bottom surface (1213); The first sub-embedded part (1231) and the second sub-embedded part (1232) are both at least partially embedded in the support body (1211), one end of the first sub-embedded part (1231) is exposed through the first top surface (1212) and is electrically connected to the second end (1412) of the first spring (141), and the other end of the first sub-embedded part (1231) is exposed through the first bottom surface (1213) and is electrically connected to the first movable clamping jaw (133a); One end of the second sub-embedded part (1232) is exposed through the first top surface (1212) and is electrically connected to the third end (1413) of the first spring (141), and the other end of the second sub-embedded part (1232) is exposed through the first bottom surface (1213) and is electrically connected to the second movable clamping jaw (133b).

8. The motor (1) according to any one of claims 2 to 5, characterized in that, The bottom plate (113) comprises a first surface (113a) and a second surface (113b) arranged oppositely, the first spring (141) is fixedly connected to the first surface (113a), and the SMA wire (131) is fixedly connected to the second surface (113b); One end of the first conductive embedded part (111) is exposed through the first surface (113a) of the bottom plate (113) and is electrically connected to the first end (1411) of the first spring (141), and one end of the second conductive embedded part (112) is exposed through the second surface (113b) of the bottom plate (113) and is electrically connected to the SMA wire (131).

9. The motor (1) according to any one of claims 1 to 5, characterized in that, The motor (1) further comprises a focusing circuit board (155) and a focusing sensor (156), the focusing circuit board (155) comprises a first part (1551) and a second part (1552), the first part (1551) is fixedly connected to the base (11), and the second part (1552) is fixedly connected to the anti-shake support (121); The focusing sensor (156) is fixedly and electrically connected to the second part (1552), and the focusing sensor (156) is used for detecting the position change of the focusing support (122); The first part (1551) is provided with a connecting end (1550), one end of the first conductive insert (111) and one end of the second conductive insert (112) are exposed from a second side of the base (11), and the first side and the second side are opposite sides of the base (11).

10. The motor (1) according to claim 9, characterized in that The focusing circuit board (155) further comprises a first connecting section (1553) and a second connecting section (1554), one end of the first connecting section (1553) is connected to the first part (1551), the other end of the first connecting section (1553) is connected to one end of the second connecting section (1554), and the other end of the second connecting section (1554) is connected to the second part (1552); The first part (1551) and the second part (1552) of the focusing circuit board (155) are both towards the same side of the base (11), the first connecting section (1553) is fixedly connected to the base (11) and surrounds a part of the side (113c) of the base (11), and the second connecting section (1554) is bent relative to the first connecting section (1553) and is fixedly connected to the anti-shake support (121).

11. An image capturing module (100), characterized by The camera module (100) comprises a lens (2), an image sensor (4), a driving chip (5) and the motor (1) according to any one of claims 1 to 10, the lens (2) is mounted on the focusing support (122), the image sensor (4) is located on the light-emitting side of the lens (2) and is fixedly connected to the base (11); The driving chip (5) is electrically connected to the first conductive insert (111) and the second conductive insert (112).

12. An electronic device (1000), characterized by The camera module (100) comprises a lens (2), an image sensor (4), a driving chip (5) and the motor (1) according to any one of claims 1 to 10, the lens (2) is mounted on the focusing support (122), the image sensor (4) is located on the light-emitting side of the lens (2) and is fixedly connected to the base (11); 13. A control method of a camera module, the method comprising: The control method comprises: The driving chip (5) obtains the imaging timing sequence of the image sensor (4), and the imaging timing sequence comprises the timing sequence of the non-exposure area, the timing sequence of the exposure sensitive area and the timing sequence of the non-exposure sensitive area; The driving chip (5) obtains the imaging timing sequence of the image sensor (4), and the imaging timing sequence comprises the timing sequence of the non-exposure area, the timing sequence of the exposure sensitive area and the timing sequence of the non-exposure sensitive area; The driving chip (5) outputs a driving signal and a detection signal to the SMA wire (131) according to the imaging timing of the image sensor (4), wherein the driving signal is used to make the SMA wire (131) deform, and the detection signal is used to detect the deformation of the SMA wire (131), and the timing of the detection signal corresponds to the timing of the non-sensitive area of the image sensor (4) or the timing of the non-exposure area of the image sensor (4).

14. The control method according to claim 13, characterized by, The driving chip (5) outputs a driving signal and a detection signal to the SMA wire (131) according to the imaging timing of the image sensor (4) includes that: The driving chip (5) compares the period of the detection signal with the period of the non-sensitive area of the image sensor (4); If the period of the detection signal is less than the period of the non-sensitive area of the image sensor (4), the rising edge and the falling edge of the detection signal are controlled to fall within the period of the non-sensitive area of the image sensor (4); If the period of the detection signal is equal to the period of the non-sensitive area of the image sensor (4), the rising edge of the detection signal is controlled to fall within the period of the non-sensitive area of the image sensor (4), and the falling edge of the detection signal falls within the period of the sensitive area of the image sensor (4); If the period of the detection signal is greater than the period of the non-sensitive area of the image sensor (4), the rising edge and the falling edge of the detection signal are controlled to fall within the period of the non-exposure area of the image sensor (4).

15. The control method according to claim 13, characterized by, The driving chip (5) is provided with a register; The register delays the output time of the detection signal, so that the falling edge and the rising edge of the detection signal fall within the period of the non-sensitive area of the image sensor (4); Or, the register delays the output time of the detection signal, so that the rising edge of the detection signal falls within the period of the non-sensitive area of the image sensor (4), and the falling edge of the detection signal falls within the period of the sensitive area of the image sensor (4).

Images