Motor, camera module and electronic equipment

Abstract

The invention provides a motor, a camera module and electronic equipment. The motor comprises a base, an anti-shake support, four SMA wires and a focusing support. One part of the anti-shake support is located on the inner side of the base, one end of each SMA wire is fixedly connected with the anti-shake support, and the other end of each SMA wire is fixedly connected with the base. The focusing support is movably connected with 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 with one ends of the four SMA wires through the third conductive insert, and the other ends of the four SMA wires are connected with the four second conductive inserts in a one-to-one correspondence mode. The first conductive insert, the third conductive insert, the SMA wire and the second conductive insert which are connected in sequence form a conductive path, and the conductive path is a turn-back path. When the SMA wire is electrified, electromagnetic interference on the image sensor is not easily caused.

Description

Technical Field

[0001] This application relates to the field of photographing devices, and in particular, to a motor, a camera module, and an electronic device. Background Art

[0002] Shape memory alloy (SMA) motors are small in size and strong in driving ability, and are widely used in camera modules. The SMA motor utilizes the characteristics of the metal wire shrinking when heated and expanding when cooled, and controls the length of the metal wire by controlling the magnitude of the current, thereby driving the lens to move in the X-Y plane to achieve the purpose of optical image stabilization (OIS).

[0003] In order to reduce power consumption, pulse width modulation (PWM) signals are usually used to drive the SMA motor. Since PWM will form a periodic electromagnetic radiation signal. When the traditional SMA motor performs anti-shake, the SMA wire is energized to transmit the PWM signal. When the motor anti-shake and the image sensor exposure are synchronously turned on, stripe interference will occur in the picture 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 wire of the motor is energized, the motor is not likely to interfere with the image sensor.

[0005] In a first aspect, an embodiment of this application provides a motor. The motor includes a base, an anti-shake bracket, four SMA wires, and a focusing bracket; a part of the anti-shake bracket is located inside the base, one end of each SMA wire is fixedly connected to the anti-shake bracket, and the other end is fixedly connected to the base. The SMA wire can drive the anti-shake bracket to move relative to the base along a first direction and a second direction; the focusing bracket is movably connected to the anti-shake bracket, and the focusing bracket can move relative to the base along a third direction; the first direction, the second direction, and the third direction intersect pairwise; the base includes a first conductive insert and four second conductive inserts, the anti-shake bracket includes 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 ends of the four SMA wires are respectively connected to the four second conductive inserts; the first conductive insert, the third conductive insert, one SMA wire, and one second conductive insert connected in sequence form a conduction path, and the conduction path is a return path.

[0006] In the embodiment of the present application, the four SMA wires of the motor can be electrically connected to the conductive insert in the base by using the third conductive insert in the anti-shake bracket to form a conductive path. The conductive path is a folded path, which means that the conductive path can be folded back at an acute angle in the opposite direction at least at one position. When the conductive path is energized, the current on the conductive path can change direction at least at one position, so that a current in the opposite direction can be formed on the conductive path.

[0007] In an embodiment of the present application, the motor drives the SMA wire using a pulse width modulation (PWM) signal, that is, the SMA wire transmits a PWM signal. The PWM signal will form a periodic electromagnetic radiation signal. If this periodic electromagnetic radiation signal is coupled to an adjacent signal line, it will generate electromagnetic interference (EMI) to the adjacent signal. Since the position of the SMA wire in the camera module is usually close to the image sensor, in order to reduce the risk of the electromagnetic radiation signal of PWM interfering with the image sensor, the present application sets the conductive path to which each SMA wire belongs to a return path so that when the conductive path is energized, the current flowing through the conductive path will not form a ring loop or a loop similar to a ring, and since the conductive path is a return path, the magnetic field generated by the round-trip current on the conductive path can also be offset. In this way, the periodic electromagnetic radiation signal formed by PWM will not strongly interfere with the image sensor and affect the electrical signal generated by the image sensor, which is beneficial to improving the imaging effect of the image sensor.

[0008] In some embodiments, the base also includes a bottom plate, which includes a first side, a second side, a third side, and a fourth side connected in sequence; the first conductive embedding and the second conductive embedding are at least partially embedded in the bottom plate, and one end of the first conductive embedding and one end of the second conductive embedding are exposed from the first side; four SMA wires 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 wire belongs is folded back at the side corresponding to the SMA wire.

[0009] It can be understood that the conductive path turns back at the edge corresponding to the SMA wire means that when the conductive path to which each SMA wire belongs is energized, the conductive path forms a current with opposite directions at the edge corresponding to the SMA wire, but it is not limited to the current changing direction at the edge corresponding to the SMA wire. For example, the current on the conductive path can change direction at the edge corresponding to the SMA wire to form a current with opposite directions at the edge corresponding to the SMA wire; the current on the conductive path can also change direction at the corner connecting the edge to form a current with opposite directions at the edge corresponding to the SMA wire.

[0010] In this embodiment, when the conductive path is energized, current can flow from the first side portion of the base plate to each SMA wire and turn back at the side portion corresponding to each SMA, so that the current returns to the first side portion, thereby avoiding the formation of a loop or a loop-like circuit by the current in the conductive path. The structures of the conductive path and the motor are relatively simple and have good reliability. In addition, after the current flows through the SMA wire, it turns back at the side portion corresponding to the SMA and will not turn back after flowing through other side portions. In this way, the conductive path is relatively short. The structures of the conductive path and the motor are relatively simple.

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

[0012] In this embodiment, on the one hand, the first reed can be used to provide an elastic force for moving the anti-shake bracket back to the equilibrium position when the anti-shake bracket moves relative to the base and leaves the equilibrium position. On the other hand, the first conductive insert can be electrically connected to the third conductive insert through the first reed, thereby electrically connecting one end of the four SMA wires. And, the four conductive paths can share a first conductive insert and a first reed, so that the structural components of the conductive path are fewer and the structure is relatively simple. It can be understood that the first reed has the effect of "serving multiple purposes".

[0013] In some embodiments, the third conductive insert includes a first sub-insert and a second sub-insert; the first reed includes a first end, a second end and a third end, the first end is fixedly connected to the base and is 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 arranged corresponding to the first side portion, and the first sub-insert is electrically connected to two SMA wires; the third end and the second sub-insert are both arranged corresponding to the fourth side portion, and the second sub-insert is electrically connected to the other two SMA wires.

[0014] In this embodiment, the first conductive insert can be electrically connected to the first sub-insert through the first reed, thereby electrically connecting two SMA wires. At the same time, the first conductive insert can also be electrically connected to the second sub-insert through the first reed, thereby electrically connecting the other two SMA wires. In this way, the four SMA wires can be electrically connected to the first conductive insert through the first sub-insert or the second sub-insert.

[0015] In addition, the second end of the first reed and the first sub-insert are both arranged corresponding to the first side portion, and the third end of the first reed and the second sub-insert are both arranged corresponding to the fourth side portion, making the structure of the conductive path relatively reasonable and simple. It can be understood that the positions of the first sub-insert and the second sub-insert can be adjusted according to requirements. In some other embodiments, the first sub-insert and the second sub-insert can also correspond to other positions of the base.

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

[0017] In this embodiment, one end of each of the two SMA wires can be fixedly connected to the anti-shake bracket through the first movable jaw and is electrically connected to the first sub-insert; one end of the other two SMA wires can be fixedly connected to the anti-shake bracket through the second movable jaw and is electrically connected to the second sub-insert. In other words, the two SMA wires share one movable jaw to be electrically connected to one sub-insert of the third conductive insert. On the one hand, the structural members of the conduction path are fewer and the structure is relatively simple; on the other hand, the connection surface between the movable jaw and the sub-insert is larger, which is beneficial to improving the electrical connection reliability between the third conductive insert and the movable jaw.

[0018] In some embodiments, the first movable jaw is located between two adjacent SMA wires and is electrically connected to the two adjacent SMA wires; the second movable jaw is located between the other two adjacent SMA wires and is electrically connected to the other two adjacent SMA wires. In this embodiment, two adjacent SMA wires can share the same movable jaw, making the structure of the conduction path relatively 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 is connected between the first side and the second side, the third corner is connected between the third side and the fourth side, and the fourth corner is connected between the fourth side and the first side; the first movable jaw corresponds to the first corner, the second movable jaw corresponds to the third corner, and the first spring piece corresponds to the fourth corner; the four SMA wires respectively correspond to the first conduction path, the second conduction path, the third conduction path, and the fourth conduction path; the first conduction path corresponds to the first side and makes a U-turn at the fourth corner, the first corner, and the first side in sequence; the second conduction path corresponds to the first side and the second side and makes a U-turn at the fourth corner and the second side; the third conduction path corresponds to the first side, the fourth side, and the third side and makes a U-turn at the third side; the fourth conduction path corresponds to the first side and the fourth side and makes a U-turn at the third corner. In this way, each conduction path is shorter, and its structure is relatively simple and reasonable. The reliability of the conduction path and the motor is better.

[0020] In some embodiments, the anti-shake bracket further includes a bracket body. The bracket body includes a first top surface and a first bottom surface disposed opposite to each other. The first reed is fixedly connected to the first top surface, and the first movable claw and the second movable claw are both fixedly connected to the first bottom surface. The first sub-insert and the second sub-insert are at least partially embedded in the bracket body. One end of the first sub-insert is exposed through the first top surface and is electrically connected to the second end of the first reed. The other end of the first sub-insert is exposed through the first bottom surface and is electrically connected to the first movable claw. One end of the second sub-insert is exposed through the first top surface and is electrically connected to the third end of the first reed. The other end of the second sub-insert is exposed through the first bottom surface and is electrically connected to the second movable claw.

[0021] In this embodiment, the first reed and the SMA wire can be respectively located on opposite sides of the anti-shake bracket. On the one hand, the first reed and the SMA wire can make reasonable use of the space on the anti-shake bracket, so that the structure of the conduction path is more reasonable and the structure of the motor is simpler. On the other hand, it can avoid interference between the first reed and the SMA wire during the anti-shake process.

[0022] In some embodiments, the base plate includes a first surface and a second surface disposed opposite to each other. The first reed is fixedly connected to the first surface, and the SMA wire is fixedly connected to the second surface. One end of the first conductive insert is exposed through the first surface of the base plate and is electrically connected to the first end of the first reed. One end of the 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 respectively 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, so that the structure of the conduction path is more reasonable and the structure of the motor is simpler. 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 anti-shake bracket. The focusing sensor is fixedly connected and electrically connected to the second part. The focusing sensor is used to detect the position change of the focusing bracket. The first part is provided with a connection end, and the connection end is exposed from the first side of the base. One end of the first conductive insert and one end of the second conductive insert are exposed from the second side of the base. The first side and the second side are opposite sides of the base.

[0025] In the present application, the first conductive insert and the second conductive insert transmit PWM signals. Since PWM will form periodic electromagnetic radiation signals, if they are coupled to adjacent signal lines, interference will be generated. For example, the PWM signal will interfere with the Inter-Integrated Circuit (I2C) signal on the focusing circuit board.

[0026] In this embodiment, by exposing the connection end 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 end of the focusing circuit board can be kept away from one end of the first conductive insert and one end of the second conductive insert. In this way, the PWM signals on the first conductive insert and the second conductive insert can be prevented from interfering with the I2C signal on the focusing circuit board, so that the driving chip can better control the focusing action of the motor to achieve a better focusing effect.

[0027] In some embodiments, the focusing circuit board further includes a first connection segment and a second connection segment. One end of the first connection segment is connected to the first part, and the other end is connected to one end of the second connection segment. The other end of the second connection segment is connected to the second part. Both the first part and the second part of the focusing circuit board face the same side of the base. The first connection segment is fixedly connected to the base and surrounds a part of the side surface of the base. The second connection segment is bent relative to the first connection segment and is fixedly connected to the anti-shake bracket.

[0028] In this embodiment, the first connection segment and the second connection segment of the focusing circuit board can form a connection segment. The connection segment can be bent, and the first connection segment can extend a certain length around the side surface of the base. In this way, during the movement of the anti-shake bracket relative to the base, when the focusing circuit board is pulled, the first connection segment and the second connection segment can undergo a certain deformation, so as to avoid stress concentration on the focusing circuit board, and further reduce the risk of the focusing circuit board breaking.

[0029] In a second aspect, an embodiment of the present application provides an imaging module. The imaging module includes a lens, an image sensor, a driving 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 the base; the driving chip is electrically connected to the first conductive insert and the second conductive insert.

[0030] In the embodiment of the present application, the driving chip can transmit a PWM signal to the SMA wire through the first conductive insert and the second conductive insert to control the anti-shake of the motor. The periodic electromagnetic radiation signal formed by the PWM will not strongly interfere with the image sensor and affect the electrical signal generated by the image sensor, so that the imaging module has a better imaging effect.

[0031] In a third aspect, an embodiment of the present application provides an electronic device. The electronic device includes a device housing and the imaging module as described above, and the imaging module is provided in the device housing. When the electronic device takes pictures, it can take into account both the anti-shake effect and a better imaging effect.

[0032] Fourthly, an embodiment of the present application provides a control method for an imaging module. The imaging module includes a motor, an image sensor, and a driving chip. The motor includes a base, an anti-shake bracket, and an SMA wire. One end of the SMA wire is fixedly connected to the base, and the other end is fixedly connected to the anti-shake bracket. The image sensor is fixedly connected to the base, and the driving chip is electrically connected to the image sensor and the SMA wire. The control method includes: the driving chip obtains the imaging timing of the image sensor, and the imaging timing includes the timing of the non-exposure area, the timing of the exposure-sensitive area, and the timing of the exposure-insensitive area; the driving chip outputs a driving signal and a detection signal to the SMA wire according to the imaging timing of the image sensor, wherein the driving signal is used to cause the SMA wire to deform, and the detection signal is used to detect the deformation of the SMA wire. The timing of the detection signal corresponds to the timing of the exposure-insensitive area of the image sensor or the timing of the non-exposure area of the image sensor.

[0033] It can be understood that within a signal acquisition cycle of an image sensor, the time when the image sensor samples is the exposure-sensitive area of the image sensor. The time area outside the sampling of the image sensor can be called the exposure-insensitive area. And the time area outside the signal acquisition cycle of the image sensor is the non-exposure area of the image sensor. That is to say, in the exposure-insensitive area and the non-exposure area, the image sensor does not sample. When the image sensor is sampling (that is, within the cycle of the exposure-sensitive area), if it is interfered by the detection signal output by the driving chip, the noise generated by the interference will be collected, resulting in interference stripes in the image generated by the image sensor. And in the exposure-insensitive area and the non-exposure area, since the image sensor does not sample, the image sensor is insensitive to external interference. Even if there is external interference, the interference will not be shown in the picture.

[0034] In the embodiment of the present application, by corresponding the timing of the detection signal to the timing of the exposure-insensitive area of the image sensor or the timing of the non-exposure area of the image sensor, the detection signal can avoid the exposure-sensitive area of the image sensor, so as to avoid the interference noise of the detection signal being collected by the image sensor and affecting the imaging effect of the image sensor.

[0035] In some embodiments, the driving chip outputs a driving signal and a detection signal to the SMA line according to the imaging timing of the image sensor, including: the driving chip compares the period of the detection signal with the period of the non-exposure sensitive area of the image sensor; if the period of the detection signal is less than the period of the non-exposure sensitive area of the image sensor, it controls both the rising edge and the falling edge of the detection signal to fall within the period of the non-exposure sensitive area of the image sensor; if the period of the detection signal is equal to the period of the non-exposure sensitive area of the image sensor, it controls the rising edge of the detection signal to fall within the period of the non-exposure sensitive 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 non-exposure sensitive area of the image sensor, it controls both the rising edge and the 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 non-exposure sensitive area of the image sensor. At this time, it can be controlled that the entire period of the detection signal falls within the period of the non-exposure sensitive area of the image sensor. In this way, the detection signal can completely avoid the exposure sensitive area of the image sensor, so as to avoid the interference noise of the detection signal being collected by the image sensor.

[0037] If the period of the detection signal is equal to the period of the non-exposure sensitive area of the image sensor, the non-exposure sensitive area of the image sensor is not sufficient to completely accommodate the detection signal, or due to time accuracy problems, there is a risk that it cannot completely accommodate the detection signal. At this time, it controls the rising edge of the detection signal to avoid the exposure sensitive area of the image sensor, so as to reduce the interference noise of the detection signal being collected by the image sensor.

[0038] If the period of the detection signal is greater than the period of the non-exposure sensitive area of the image sensor, the non-exposure sensitive area of the image sensor cannot completely accommodate the detection signal. At this time, it controls both the rising edge and the falling edge of the detection signal to fall within the period of the non-exposure area of the image sensor, so that the entire period of the detection signal can fall within the period of the non-exposure area of the image sensor. In this way, the detection signal can completely avoid the exposure sensitive area of the image sensor, so as to avoid the interference noise of the detection signal being collected by the image sensor.

[0039] In some embodiments, the driving chip is provided with 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 non-exposure sensitive 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 non-exposure sensitive 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 driving chip can control the time of the detection signal through a register, so that the timing of the detection signal corresponds to the timing of the non-sensitive exposure area of the image sensor. In this way, the structure of the driving chip is simple, and the method of controlling the start time of the detection signal is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the following will describe the drawings required to be used in the embodiments of the present application or the background art.

[0042] Figure 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application in some embodiments;

[0043] Figure 2 is Figure 1 a partial cross-sectional schematic view of the electronic device shown in some embodiments along A-A;

[0044] Figure 3A is Figure 1 a schematic structural diagram of the camera module shown in some embodiments;

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

[0046] Figure 4 is Figure 3A a partial cross-sectional structural schematic view of the camera module shown in some embodiments along B-B;

[0047] Figure 5 is Figure 3B a schematic structural diagram of the motor shown in some embodiments;

[0048] Figure 6 is Figure 5 a partial structural schematic view of the motor shown in some embodiments;

[0049] Fig. 7A is Figure 6 a schematic structural diagram of the SMA wire assembly shown in some embodiments;

[0050] Figure 7B is Figure 5 a partial structural schematic view of the motor shown in some embodiments;

[0051] Fig. 8A is Figure 7B a partial structural schematic view of the conductive path shown;

[0052] Figure 8B is Figure 7BTop view of the conductive path of the motor shown;

[0053] Fig. 9A is Figure 7B Partial structural schematic diagram of the conductive path shown;

[0054] Fig. 9B is Figure 7B Top view of the conductive path of the motor shown;

[0055] Fig. 10A is Figure 7B Partial structural schematic diagram of the conductive path shown;

[0056] Fig. 10B is Figure 7B Top view of the conductive path of the motor shown;

[0057] Fig.11A is Figure 7B Partial structural schematic diagram of the conductive path shown;

[0058] Fig. 11B is Figure 7B Top view of the conductive path of the motor shown;

[0059] Fig. 12A is Figure 6 Structural schematic diagram of the base in some embodiments shown;

[0060] Fig. 12B is Fig. 12A Structural schematic diagram of the base at another angle shown;

[0061] Fig.13 is Fig. 12A Partial structural exploded view of the base in some embodiments shown;

[0062] Fig.14 is Fig. 12A Partial cross-sectional structural schematic diagram of the base cut along C-C in some embodiments shown;

[0063] Fig.15A is Figure 6 Structural schematic diagram of the anti-shake bracket in some embodiments shown;

[0064] Fig. 15B is Fig.15A Structural schematic diagram of the anti-shake bracket at another angle shown;

[0065] Fig.16 is Fig.15A Partial structural exploded view of the anti-shake bracket in some embodiments shown;

[0066] Fig.17 is Fig.15ASchematic diagram of a partial cross-sectional structure of the anti-shake bracket shown in some embodiments along D-D;

[0067] Fig.18 is Figure 5 Schematic diagram of a partial structure of the motor shown in some embodiments;

[0068] Fig.19 is Fig.18 Schematic diagram of a partial structure of the motor shown in another perspective;

[0069] Fig. 20 is Figure 5 Schematic diagram of a partial structure of the motor shown in some embodiments;

[0070] Fig.21 Figure 5 Exploded view of a partial structure of the motor shown in some embodiments;

[0071] Fig. 22 is Fig.21 Assembly diagram of a partial structure of the motor shown;

[0072] Fig.23 is Figure 5 Top view of a partial structure of the motor shown in some embodiments;

[0073] Fig.24 is Figure 5 Schematic diagram of a partial structure of the motor shown in some embodiments;

[0074] Fig.25 is Fig.18 Schematic diagram of a partial cross-sectional structure of a partial structure of the motor shown in some embodiments along E-E;

[0075] Fig.26A is Figure 6 Schematic diagram of a structure of the focusing bracket shown in another perspective in some embodiments;

[0076] Fig.26B is Fig.26A Schematic diagram of a structure of the focusing bracket shown in another perspective;

[0077] Fig.27A is Figure 5 Schematic diagram of a partial structure of the motor shown in another perspective in some embodiments;

[0078] Fig.27B is Fig.27A Schematic diagram of a partial structure of the motor shown in another perspective;

[0079] Fig.28 is Figure 5Partial structural schematic diagram of the motor shown in some embodiments;

[0080] Fig.29 is Figure 5 Partial structural schematic diagram of the motor shown in some embodiments;

[0081] Fig.30 is Fig.28 Partial cross-sectional structural schematic diagram of the partial structure of the motor shown in some embodiments cut along F-F;

[0082] Fig.31 is Figure 5 Partial structural exploded view of the motor shown in some embodiments;

[0083] Fig.32 is Figure 5 Partial structural schematic diagram of the motor shown in some embodiments;

[0084] Fig.33 is Fig.31 Structural schematic diagram of the partial structure of the motor shown from another angle;

[0085] Fig.34 is Figure 3A Partial structural schematic diagram of the camera module shown in some embodiments;

[0086] Fig.35 is Fig.32 Partial structural schematic diagram of the partial structure of the motor cut along G-G;

[0087] Fig.36 is Figure 5 Partial structural exploded view of the motor shown in some embodiments;

[0088] Fig.37 is Figure 5 Partial cross-sectional structural schematic diagram of the motor shown in some embodiments cut along H-H;

[0089] Fig.38 Imaging timing diagram of the image sensor of the camera module in some embodiments;

[0090] Fig.39 Flow chart of a control method for a camera module provided by an embodiment of the present application Figure 1 ;

[0091] Fig.40 Flow chart of a control method for a camera module provided by an embodiment of the present application Figure 2 ;

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

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

[0094] Fig.43 It is the third flowchart of a control method for a camera module provided by an embodiment of the present application;

[0095] Fig.44 It is the flow of a control method for a camera module provided by an embodiment of the present application Figure 4 。 Specific embodiments

[0096] The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

[0097] In the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation" and "connection" should be understood in a broad sense. 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. Among them, "fixed connection" means that the two are connected and the relative position relationship after connection remains unchanged. "Movable connection" means that the two are connected and the relative position relationship after connection can change.

[0098] The term "integrally formed" means that during the process of forming one of the two components, the component is connected to the other component, and there is no need to connect the two components by means of reprocessing (such as bonding, welding, snap connection, screw connection).

[0099] The orientation terms mentioned in the embodiments of the present application, such as "top", "bottom", "inside", "outside", "side", etc., are only references to the directions of the accompanying drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present application. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

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

[0101] In the embodiments of the present application, "and / or" is merely a description of the association relationship between associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0102] References described in this specification or "some embodiments" etc. mean that in one or more embodiments of the present application, specific features, structures, or characteristics described in connection with that embodiment are included. Thus, statements such as "in some embodiments", "in other some embodiments", "in other embodiments", etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but rather mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0103] The terms "comprise", "be provided with" and their variants mean "include but not limited to", unless otherwise specifically emphasized in other ways.

[0104] Limitations such as the terms "parallel" and "perpendicular" are all in view of the current technological level and are not absolute and strict definitions in a mathematical sense. A small deviation is allowed, and being approximately parallel or approximately perpendicular, etc. are all acceptable. For example, if A is parallel to B, it means that A is parallel to B or approximately parallel to B, and the included angle between A and B can be between 0° and 10°. Another example is that if A is perpendicular to B, it means that A is perpendicular to B or approximately perpendicular to B, and the included angle between A and B can be between 80° and 100°.

[0105] It can be understood that the specific embodiments described herein are only for explaining the related embodiments and are not a limitation on the embodiments. Additionally, it should be noted that for ease of description, only parts related to the embodiments are shown in the drawings.

[0106] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

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

[0108] Please refer to Figure 1 , Figure 1FIG. 0 is a schematic structural diagram of the electronic device 1000 provided in some embodiments of the present application.

[0109] In some embodiments, the electronic device 1000 may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, an augmented reality (AR) glasses, an AR helmet, a virtual reality (VR) glasses, or a VR helmet, etc., which are devices with a camera function. Figure 1 The electronic device 1000 in the illustrated embodiment will be described by taking a mobile phone as an example.

[0110] Please refer to Figure 1 and Figure 2 , Figure 2 which is Figure 1 a partial cross-sectional schematic view of the electronic device 1000 shown in some embodiments along the A-A section.

[0111] In some embodiments, the electronic device 1000 may include a camera module 100, a device housing 200, and a screen 300. Among them, the camera module 100 may be a rear camera module or a front camera module. It should be noted that Figure 1 and the related drawings below only schematically show some components included in the electronic device 1000, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 1 and the following respective drawings. In addition, when the electronic device 1000 is some other forms of devices, the electronic device 1000 may not include the screen 300.

[0112] Among them, the device housing 200 may include a frame 201 and a rear cover 202. The rear cover 202 is fixed to the frame 201. Exemplarily, the rear cover 202 may be fixedly connected to the frame 201 by means of glue, snap connection, etc. The rear cover 202 may also be an integrally formed structure with the frame 201, that is, the rear cover 202 and the frame 201 are a whole structure.

[0113] In some embodiments, the screen 300 may be located on the side of the frame 201 away from the rear cover 202. At this time, the screen 300 and the rear cover 202 may be located on both sides of the frame 201 respectively. The screen 300, the frame 201 and the rear cover 202 together enclose the interior of the electronic device 1000. The interior of the electronic device 1000 can be used to place the components of the electronic device 1000, such as a battery, a receiver or a microphone, etc. Among them, the screen 300 can be a flat screen or a curved screen.

[0114] Exemplarily, 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 be provided with a light-transmitting hole 203. The shape of the light-transmitting hole 203 is not limited to the Figure 1 circular shape shown. The light-transmitting hole 203 connects the interior of the electronic device 1000 to the outside of the electronic device 1000. The light outside the electronic device 1000 can enter the interior of the electronic device 1000 through the light-transmitting hole 203. The camera module 100 can collect the light entering the interior of the electronic device 1000.

[0115] Please refer to FIG. 3A to FIG. 4 , Figure 3A which is Figure 1 the schematic structural diagram of the camera module 100 in some embodiments as shown, Figure 3B which is Figure 3A the partial structural exploded view of the camera module 100 in some embodiments as shown, Figure 4 which is Figure 3A the partial cross-sectional structural schematic diagram of the camera module 100 shown in some embodiments cut along B-B.

[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 driving chip 5. Exemplarily, the lens 2 is mounted on the motor 1. The lens 2 can be used to collect ambient light. Among them, the optical axis direction of the lens 2 can be parallel to the Z-axis direction. The optical axis direction of the lens 2 and the optical axis direction of the camera module 100 can be the same direction.

[0117] Exemplarily, the image sensor 4 may be fixedly connected to the circuit board 3 and electrically connected to the circuit board 3. The circuit board 3 may be located on the bottom side of the motor 1 and fixedly connected to the base 11. The image sensor 4 may be located on the light-emitting side of the lens 2. It can be understood that the light enters the camera module 100 from the light-transmitting hole 203 of the electronic device 1000 (please refer to Figure 2 ), and after passing through the lens, it can reach the image sensor 4. The image sensor 4 converts the image information carried by the light into an electrical signal. It can be 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-emitting side of the lens is defined as the "bottom side".

[0118] Exemplarily, the driving chip 5 can be fixedly connected to the image sensor 4 and electrically connected to the image sensor 4. In some other embodiments, the driving chip 5 can also be fixedly connected to other positions of the motor 1, and the present application does not strictly limit this.

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

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

[0121] It can be understood that the motor 1 can be an autofocus motor 1. In this way, the motor 1 can control the lens 2 to move along the Z-axis direction to achieve auto focus (AF). The motor 1 can also be an anti-shake motor 1. In this way, the motor 1 can control the lens 2 to move along a plane perpendicular to the Z-axis direction (i.e., the X-Y plane). When the camera module 100 collects ambient light, if the electronic device 1000 jitters in the X-Y plane due to an external force, the motor 1 can control the movement of the lens 2 in the X-Y plane to offset the jitter stroke of the lens 2 in the X-Y plane, so as to avoid or reduce the position offset of the lens 2 caused by jitter. In other words, the camera module 100 of the present application can control the movement of the lens 2 in the X-Y plane through the motor 1 to achieve optical image stabilization (OIS) of the camera module 100 and improve the imaging quality of the camera module 100. The motor 1 can also be a motor 1 that integrates anti-shake and autofocus. In this way, the motor 1 can both control the lens 2 to achieve auto focus and control the lens 2 to achieve optical image stabilization. The embodiments of the present application are described by taking the motor 1 as a motor 1 that integrates anti-shake and autofocus as an example. In the present application, the driving chip 5 can be used to output an anti-shake control signal and an autofocus control signal to the motor 1.

[0122] It can be understood that the motor 1 can be a motor 1 driven by the force generated by the cooperation of a coil and a magnetic member. Among them, the driving force of the motor 1 can be the force for driving the lens 2 to focus, and / or the force for driving the lens 2 to perform anti-shake. When the motor 1 is an integrated anti-shake and focusing one, the force for driving the lens 2 to focus and the force for driving the lens 2 to perform anti-shake can be different, but at least one of the force for driving the lens 2 to focus and the force for driving the lens 2 to perform anti-shake is the force generated by the cooperation of a coil and a magnetic member. For example, the force for driving the lens 2 to focus is the force generated by the cooperation of a coil and a magnetic member, and the force for driving the lens 2 to perform anti-shake can be the expansion and contraction force of a shape memory alloy (SMA), etc., or can also be the force generated by other structural members (such as the force generated by the cooperation of a coil and a magnetic member).

[0123] The structure of the camera module 100 has been generally introduced above in conjunction with the relevant drawings. The structure of the motor 1 will be specifically introduced below in conjunction with the relevant drawings.

[0124] Please refer to Figure 5 and Figure 6 , Figure 5 is Figure 3B the schematic structural diagram of the motor 1 in some embodiments shown in Figure 6 is Figure 5 the partial structural schematic diagram of the motor 1 in some embodiments shown in

[0125] In some embodiments, the motor 1 includes a base 11, a carrier assembly 12, an SMA wire assembly 13, a first reed 141, a second reed 142, a focusing drive mechanism 15, a ball group 16, a connecting member 17, and a housing 18. Among them, the carrier assembly 12 can be used to mount the lens 2 (please refer to Figure 3B ). The carrier assembly 12 can include an anti-shake bracket 121 and a focusing bracket 122. Among them, the focusing drive mechanism 15 can include a first focusing coil 151, a first focusing magnetic member 152, a second focusing coil 153, a second focusing magnetic member 154, a focusing circuit board 155, and a focusing sensor 156. Among them, the housing 18 can include a top cover 181 and a bottom cover 182. The housing 18 is provided with a through hole 180. As Figure 3A shown, a part of the structure of the lens 2 can be exposed through the through hole 180 of the housing 18.

[0126] It can be understood that Figure 6 and the relevant drawings below only schematically show some components included in the motor 1, and the actual shape, actual size, actual position, and actual structure of these components are not limited by Figure 6 and the respective drawings below. It can be understood that the motor 1 can include more or fewer components. For example, when installing the motor 1, it may not include the housing 18, and / or the connecting member 17.

[0127] Please refer to Fig. 7A , Fig. 7A is Figure 6 The structural schematic diagram of the SMA wire assembly 13 shown in some embodiments.

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

[0129] Exemplarily, the two movable jaws 133 are respectively a first movable jaw 133a and a second movable jaw 133b. Among them, the first movable jaw 133a may include a first main body portion 1331a, a first connection end 1332a, and a second connection end 1333a, and the first main body portion 1331a may be connected between the first connection end 1332a and the second connection end 1333a. Among them, the second movable jaw 133b may include a second main body portion 1331b, a third connection end 1332b, and a fourth connection end 1333b, and the second main body portion 1331b may be connected between the third connection end 1332b and the fourth connection end 1333b.

[0130] In some embodiments, one end of two SMA wires 131 is respectively connected to the first movable jaw 133a, and one end of the other two SMA wires 131 is respectively connected to the second movable jaw 133b. It can be understood that in the embodiments of the present application, two of the four SMA wires 131 may be connected to the same movable jaw 133, and the other two SMA wires 131 may be connected to another movable jaw 133.

[0131] Exemplarily, the four SMA wires 131 may be respectively a first SMA wire 131a, a second SMA wire 131b, a third SMA wire 131c, and a fourth SMA wire 131d. Among them, the first SMA wire 131a and the second SMA wire 131b may be two adjacent SMA wires 131. One end of the first SMA wire 131a and one end of the second SMA wire 131b are respectively connected to the first movable jaw 133a. For example, one end of the first SMA wire 131a may be connected to the first connection end 1332a of the first movable jaw 133a, and one end of the second SMA wire 131b may be connected to the second connection end 1333a of the first movable jaw 133a. Among them, the third SMA wire 131c and the fourth SMA wire 131d may be two adjacent SMA wires 131. One end of the third SMA wire 131c and one end of the fourth SMA wire 131d are respectively connected to the second movable jaw 133b. For example, one end of the third SMA wire 131c may be connected to the third connection end 1332b of the second movable jaw 133b, and one end of the fourth SMA wire 131d may be connected to the fourth connection end 1333b of the second movable jaw 133b.

[0132] In some embodiments, the other ends of the four SMA wires 131 are correspondingly connected to four fixed jaws 132. Exemplarily, the four fixed jaws 132 are respectively a first fixed jaw 132a, a second fixed jaw 132b, a third fixed jaw 132c, and a fourth fixed jaw 132d. The other end of the first SMA wire 131a is connected to the first fixed jaw 132a. The other end of the second SMA wire 131b is connected to the second fixed jaw 132b. The other end of the third SMA wire 131c may be connected to the third fixed jaw 132c. The other end of the fourth SMA wire 131d is connected to the fourth fixed jaw 132d.

[0133] Please refer to Fig. 7A and Figure 7B , Figure 7B which Figure 5 is a partial structural schematic diagram of the motor 1 shown 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. Among them, the number of the second conductive inserts 112 is four.

[0135] In some embodiments, 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 four SMA wires 131 are correspondingly connected to the four second conductive inserts 112.

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

[0137] Exemplarily, the third conductive insert 123 includes a first sub-insert 1231 and a second sub-insert 1232. Among them, one end of the first sub-insert 1231 is connected to the first movable jaw 133a. For example, one end of the first sub-insert 1231 may be connected to the first main body portion 1331a of the first movable jaw 133a. It can be understood that the first sub-insert 1231 can be electrically connected to the first SMA wire 131a and the second SMA wire 131b through the first movable jaw 133a. Among them, one end of the second sub-insert 1232 is connected to the second movable jaw 133b. For example, one end of the second sub-insert 1232 may be connected to the second main body portion 1331b of the second movable jaw 133b. It can be understood that the second sub-insert 1232 can be electrically connected to the third SMA wire 131c and the fourth SMA wire 131d through the second movable jaw 133b.

[0138] Exemplarily, the first reed 141 may include a first end 1411, a second end 1412, and a third end 1413. Both the second end 1412 and the third end 1413 of the first reed 141 are connected to the first end 1411. Among them, the first end 1411 of the first reed 141 is connected to the first conductive insert 111. The second end 1412 of the first reed 141 is connected to the other end of the first sub-insert 1231. The third end 1413 of the first reed 141 is connected to the other end of the second sub-insert 1232.

[0139] It can be understood that the first conductive insert 111 can be electrically connected to the third conductive insert 123 through the first reed 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 through the first reed 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 through the first reed 141, thereby electrically connecting the third SMA wire 131c and the fourth SMA wire 131d.

[0140] Exemplarily, one end of the four second conductive inserts 112 is correspondingly connected to the four fixed claws 132. It can be understood that the four second conductive inserts 112 can be correspondingly connected to the other ends of the four SMA wires 131 through the four fixed claws 132. Exemplarily, the four second conductive inserts 112 are respectively the third sub-insert 112a, the fourth sub-insert 112b, the fifth sub-insert 112c, and the sixth sub-insert 112d. Among them, the third sub-insert 112a is electrically connected to the first SMA wire 131a. The fourth sub-insert 112b is electrically connected to the second SMA wire 131b. The fifth sub-insert 112c is electrically connected to the third SMA wire 131c. The sixth sub-insert 112d is electrically connected to the fourth SMA wire 131d.

[0141] Please continue to refer to Fig. 7A and Figure 7B , in some embodiments, 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. Exemplarily, the first conductive insert 111 can be connected to the third conductive insert 123 through the first reed 141. The third conductive insert 123 can be connected to the SMA wire 131 through a movable claw 133. One SMA wire 131 can be connected to the corresponding second conductive insert 112 through a fixed claw 132.

[0142] The conductive path 10 is a return path. It can be understood that the conductive path 10 can at least turn back at an acute angle in the opposite direction at one position. When the conductive path 10 is energized, the current on the conductive path 10 can at least change direction at one position, so that currents with opposite directions can be formed on the conductive path 10.

[0143] In this application, the motor 1 drives the SMA wire 131 using a Pulse Width Modulation (PWM) signal, that is, the SMA wire 131 transmits the PWM signal. The PWM signal will form a periodic electromagnetic radiation signal. If this periodic electromagnetic radiation signal couples to adjacent signal lines, it will generate electromagnetic interference (EMI) to the adjacent signals. Since the position of the SMA wire 131 is close to the image sensor 4, to reduce the risk of the electromagnetic radiation signal of the PWM interfering with the image sensor 4, in this application, the conduction path 10 to which each SMA wire 131 belongs is set as a folded-back path, so that when the conduction path 10 is energized, the current flowing through the conduction path 10 will not form a circular loop or a loop similar to a circular loop, and because the conduction path 10 is a folded-back path, the magnetic fields generated by the round-trip currents on the conduction path 10 can also cancel each other out. In this way, the periodic electromagnetic radiation signal formed by the PWM will not strongly interfere with the image sensor 4 and affect the electrical signal generated by the image sensor 4, thereby being beneficial to improving the imaging effect of the image sensor 4.

[0144] It can be understood that, in the embodiment of this application, two SMA wires 131 share a movable claw 133 to be electrically connected to a sub-insert of the third conductive insert 123. In this way, on the one hand, the structural components of the conduction path 10 are fewer and the structure is relatively simple; on the other hand, the connection surface between the movable claw 133 and the sub-insert is larger, which is beneficial to improving the electrical connection reliability between the third conductive insert 123 and the movable claw 133. Exemplarily, two adjacent SMA wires 131 can share the same movable claw 133, making the structure of the conduction path 10 more reasonable and simple.

[0145] In this application, four SMA wires 131 and four second conductive inserts 112 can respectively correspond to four conduction paths 10. For example, the four conduction paths 10 are the first conduction path 101, the second conduction path 102, the third conduction path 103, and the fourth conduction path 104 respectively. Among them, the first SMA wire 131a and the third sub-insert 112a correspond to the first conduction path 101. The second SMA wire 131b and the fourth sub-insert 112b correspond to the second conduction path 102. The third SMA wire 131c and the fifth sub-insert 112c correspond to the third conduction path 103. The fourth SMA wire 131d and the sixth sub-insert 112d correspond to the fourth conduction path 104. The four conduction paths 10 are all folded-back paths.

[0146] Exemplarily, the number of the first conductive insert 111 and the first spring piece 141 is one each. Four conductive paths 10 can share one first conductive insert 111 and one first spring piece 141, so that the structural components of the conductive path 10 are fewer and the structure is relatively simple.

[0147] It can be understood that in the above embodiment, the first spring piece 141 forms a part of the conductive path 10. In some other embodiments, the motor 1 may not include the first spring piece 141 either. At this time, 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 can be understood that in the above embodiment, the third conductive insert 123 includes a first sub-insert 1231 and a second sub-insert 1232 which are arranged at intervals, and the first sub-insert 1231 and the second sub-insert 1232 are respectively electrically connected to the first conductive insert 111. In some other embodiments, the third conductive insert 123 can also be other conductive structures. For example, the third conductive insert 123 can be an integral structural member. The first conductive insert 111 is electrically connected to the first conductive insert 111. One end of the third conductive insert 123 can be connected to two SMA wires 131, and the other end can be connected to another two SMA wires 131.

[0149] In some other embodiments, the motor 1 may not include the movable claw 133 either. At this time, 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 fixed claw 132 either. At this time, 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 Fig. 8A and Figure 8B , Fig. 8A which Figure 7B is a partial structural schematic diagram of the conductive path 10 shown in Figure 8B and Figure 7B is a top view of the conductive path 10 of the motor 1 shown in Fig. 8A . Exemplarily, Figure 8B mainly shows a structural schematic diagram of the first conductive path 101.

[0152] In some embodiments, a first conductive insert 111, a first reed 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 that are connected in sequence form a first conduction path 101. When the first conduction path 101 is energized, current can flow through the first conductive insert 111, the first reed 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 in sequence.

[0153] In this embodiment, when the first conduction path 101 is energized, the current flowing through the first conduction path 101 does not form a loop or a loop similar to a loop, and since the first conduction path 101 is a return path, the magnetic fields generated by the forward and reverse currents on the first conduction path 101 can still cancel each other out, thereby reducing the risk of electromagnetic interference to the image sensor 4 caused by the PWM signal on the first SMA wire 131a.

[0154] Please refer to Fig. 9A and Fig. 9B , Fig. 9A which Figure 7B is a partial structural schematic diagram of the conduction path 10 shown in Fig. 9B which Figure 7B is a top view of the conduction path 10 of the motor 1 shown in Fig. 9A . Exemplarily, Fig. 9B mainly shows a structural schematic diagram of the second conduction path 102 in

[0155] In some embodiments, a first conductive insert 111, a first reed 141, a first sub-insert 1231, a first movable claw 133a, a second SMA wire 131b, a first fixed claw 132a, and a third sub-insert 112a that are connected in sequence form a second conduction path 102. When the second conduction path 102 is energized, current can flow through the first conductive insert 111, the first reed 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 in sequence.

[0156] In this embodiment, when the second conduction path 102 is energized, the current flowing through the second conduction path 102 does not form a loop or a loop similar to a loop, and since the second conduction path 102 is a return path, the magnetic fields generated by the forward and reverse currents on the second conduction path 102 can still cancel each other out, thereby reducing the risk of electromagnetic interference to the image sensor 4 caused by the PWM signal on the second SMA wire 131b.

[0157] Please refer to Fig. 10A and Fig. 10B , Fig. 10A is Figure 7B a partial structural schematic diagram of the conductive path 10 shown in Fig. 10B is Figure 7B a top view of the conductive path 10 of the motor 1 shown in Fig. 10A The structure schematic diagram of the third conductive path 103 is mainly shown in Fig. 10B In

[0158] In some embodiments, the first conductive insert 111, the first reed 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 that are connected in sequence form the third conductive path 103. When the third conductive path 103 is energized, the current can flow through the first conductive insert 111, the first reed 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 in sequence.

[0159] In this embodiment, when the third conductive path 103 is energized, the current flowing through the third conductive path 103 does not form a loop or a loop similar to a loop, and since the third conductive path 103 is a return path, the magnetic fields generated by the forward and backward currents on the third conductive path 103 can also cancel each other out, thereby reducing the risk of electromagnetic interference caused by the PWM signal on the third SMA wire 131c to the image sensor 4.

[0160] Please refer to Fig.11A and Fig. 11B , Fig.11A is Figure 7B a partial structural schematic diagram of the conductive path 10 shown in Fig. 11B is Figure 7B a top view of the conductive path 10 of the motor 1 shown in Fig.11A The structure schematic diagram of the fourth conductive path 104 is mainly shown in Fig. 11B In

[0161] In some embodiments, a first conductive insert 111, a first reed 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 that are connected in sequence form a fourth conduction path 104. When the fourth conduction path 104 is energized, current can flow through the first conductive insert 111, the first reed 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 in sequence.

[0162] In this embodiment, when the fourth conduction path 104 is energized, the current flowing through the fourth conduction path 104 does not form a loop or a loop-like path, and since the fourth conduction path 104 is a return path, the magnetic fields generated by the forward and reverse currents on the fourth conduction path 104 can cancel each other out, thereby reducing the risk of electromagnetic interference to the image sensor 4 from the PWM signal on the fourth SMA wire 131d.

[0163] It can be understood that in the embodiments of the present application, one end of the first conductive insert 111 away from the first reed 141 can be used to connect to the positive pole of the driving circuit. One end of the second conductive insert 112 away from the SMA wire 131 can be used to connect to the negative pole of the driving circuit. It can be understood that the driving circuit is a circuit for the driving chip 5 to provide signals to the SMA wire 131. The driving chip 5 can input electrical signals to the SMA wires 131 corresponding to the four conduction paths 10 through the driving circuit. For example, the driving chip 5 inputs driving signals and detection signals to the four SMA wires 131 respectively. Among them, the driving signal can be used to control the SMA wire 131 to be energized and deformed, and the detection signal can be used to detect the deformation of the SMA wire 131.

[0164] Please refer to FIG. 12A to FIG. 13 , Fig. 12A is Figure 6 a schematic structural diagram of the base 11 shown in some embodiments, Fig. 12B is Fig. 12A a schematic structural diagram of the base 11 shown from another angle, Fig.13 is Fig. 12A a partial structural exploded view of the base 11 shown in some embodiments.

[0165] In some embodiments, the base 11 may include a bottom plate 113, a first conductive insert 111, and a second conductive insert 112. Among them, the first conductive insert 111 is the first conductive insert 111 shown above Figure 7B . Among them, the number of the second conductive inserts 112 is four, and the four second conductive inserts 112 are respectively the four second conductive inserts 112 shown above Figure 7B .

[0166] Exemplarily, the bottom plate 113 may include four side portions. The four side portions are a first side portion 1131, a second side portion 1132, a third side portion 1133, and a fourth side portion 1134 that are connected in sequence. The first side portion 1131, the second side portion 1132, the third side portion 1133, and the fourth side portion 1134 may jointly enclose a first mounting hole 1130.

[0167] Exemplarily, the bottom plate 113 may further include four corner portions. The four corner portions are a first corner portion 1135a, a second corner portion 1135b, a third corner portion 1135c, and a fourth corner portion 1135d respectively. Among them, the first corner portion 1135a may connect the first side portion 1131 and the second side portion 1132. The second corner portion 1135b may connect the second side portion 1132 and the third side portion 1133. The third corner portion 1135c may connect the third side portion 1133 and the fourth side portion 1134. The fourth corner portion 1135d may connect the fourth side portion 1134 and the first side portion 1131.

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

[0169] Exemplarily, the bottom 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 bottom 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 portion 1135d. The second protrusion 1137 may be located at the second corner portion 1135b. At this time, the first protrusion 1136 and the second protrusion 1137 may be located at the diagonal positions of the bottom 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 bottom plate 113, and the present application does not make strict limitations thereto.

[0170] Please refer to Fig. 12A 、 Fig.13 and Fig.14 , Fig.14 is Fig. 12A a partial cross-sectional structural schematic diagram of the base 11 shown in some embodiments cut along C-C.

[0171] In some embodiments, at least a portion of the first conductive insert 111 may be embedded in the bottom plate 113, and one end of the first conductive insert 111 may be exposed through the first side portion 1131 of the bottom plate 113. Exemplarily, one end of the first conductive insert 111 may be located at the first side portion 1131 and exposed through the side surface 113c and the second surface 113b of the bottom plate 113. In some other examples, one end of the first conductive insert 111 may also be exposed through other positions of the bottom plate 113, and the present application does not strictly limit this.

[0172] Exemplarily, the other end of the first conductive insert 111 may extend from the first side portion 1131 of the bottom plate 113 to the fourth corner portion 1135d of the bottom plate 113 and be exposed through the surface of the first protrusion 1136. It can be understood that the other end of the first conductive insert 111 may be exposed through the first surface 113a of the bottom plate 113.

[0173] Please refer to Fig. 12B 、 Fig.13 and Fig.14 In some embodiments, at least a portion of the second conductive insert 112 may be embedded in the bottom plate 113, and one end of the second conductive insert 112 may be exposed through the first side portion 1131 of the bottom plate 113. Exemplarily, one end of each of the four second conductive inserts 112 may be located at the first side portion 1131 and exposed through the side surface 113c and the second surface 113b of the bottom plate 113. In some other examples, one end of the second conductive insert 112 may also be exposed through other positions of the bottom plate 113, and the present application does not strictly limit this.

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

[0175] Please refer to Fig.14, in 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 side portion 1131 of the bottom plate 113. In some 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 positions of the bottom plate 113, and the present application does not make strict limitations thereon.

[0176] Please refer to FIG. 15A to FIG. 16 , Fig.15A is Figure 6 the schematic structural diagram of the anti-shake bracket 121 shown in some embodiments, Fig. 15B is Fig.15A the schematic structural diagram of the anti-shake bracket 121 shown from another angle, Fig.16 is Fig.15A the partial structural exploded view of the anti-shake bracket 121 shown in some embodiments.

[0177] In some embodiments, the anti-shake bracket 121 may include a bracket body 1211 and a third conductive insert 123. Among them, the third conductive insert 123 is the third conductive insert 123 shown above Figure 7B . It can be understood that the anti-shake bracket 121 may include a first sub-insert 1231 and a second sub-insert 1232.

[0178] Exemplarily, 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 may jointly enclose a second mounting hole 1210.

[0179] Exemplarily, 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] Exemplarily, the bracket body 1211 may include four connecting portions 1214. The connecting portions 1214 may be recessed from a part of the first top surface 1212 towards 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. Among them, 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] Exemplarily, the bracket body 1211 may be provided with an avoidance groove 1215. The opening of the avoidance groove 1215 may be located on the first top surface 1212. The avoidance groove 1215 may extend from the second side 121b of the bracket body 1211, sequentially through the third side 121c and the fourth side 121d to the first side 121a. At this time, the avoidance groove 1215 may be generally in an open ring shape.

[0182] Exemplarily, the bracket body 1211 may also be provided with a first mounting groove 1216a and a second mounting groove 1216b which are arranged at intervals. The openings of the first mounting groove 1216a and the second mounting groove 1216b both face the second mounting hole 1210. The first mounting groove 1216a and the second mounting groove 1216b may be arranged oppositely. 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] Exemplarily, the bracket body 1211 may also be provided with a first receiving groove 1217a and a second receiving groove 1217b which are arranged at intervals. 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 penetrate through 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 the diagonal positions of the bracket body 1211. For example, the first receiving groove 1217a may be located at the connection of the first side 121a and the second side 121b. The second receiving groove 1217b may be located at the connection of the third side 121c and the fourth side 121d.

[0184] Exemplarily, the bracket body 1211 may be provided with 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. Exemplarily, the first protrusion 1218a and the second protrusion 1218b are arranged at intervals. For example, the first protrusion 1218a may be located at the connection of the first side 121a and the second side 121b. The second protrusion 1218b may be located at the connection of the third side 121c and the fourth side 121d. At this time, the first protrusion 1218a and the second protrusion 1218b may be located at the diagonal positions of the bracket body 1211.

[0185] Exemplarily, the bracket body 1211 may further include an abutting portion 1219. The abutting portion 1219 may protrude from the first bottom surface 1213 of the bracket body 1211. Exemplarily, the number of the abutting portions 1219 may be three, and the three abutting portions 1219 are arranged at intervals. For example, one abutting portion 1219 may be located on the first side 121a of the bracket body 1211, one abutting portion 1219 may be located at the connection of the second side 121b and the third side 121c, and one abutting portion 1219 may be located at the connection of the third side 121c and the fourth side 121d.

[0186] Please refer to Fig.15A , Fig.16 and Fig.17 , Fig.17 is Fig.15A a partial cross-sectional structural schematic diagram of the anti-shake bracket 121 shown in some embodiments along the D-D section.

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

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

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

[0190] Please refer to Fig. 15B , Fig.16 and Fig.17 , in some embodiments, a part of the third conductive insert 123 may be exposed through the first bottom surface 1213 of the bracket body 1211.

[0191] Exemplarily, the other end of the first sub-insert 1231 can extend from the first side 121a to the connection between the first side 121a and the second side 121b. For example, the other end of the first sub-insert 1231 can be located at the first protrusion 1218a and exposed through the surface of the first protrusion 1218a. It can be understood that the other end of the first sub-insert 1231 can be exposed through the first bottom surface 1213 of the bracket body 1211.

[0192] Exemplarily, the other end of the second sub-insert 1232 can extend from the fourth side 121d to the connection between the third side 121c and the fourth side 121d. For example, the other end of the first sub-insert 1231 can be located at the second protrusion 1218b and exposed through the surface of the second protrusion 1218b. It can be understood that the other end of the second sub-insert 1232 can be exposed through the first bottom surface 1213 of the bracket body 1211.

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

[0194] Please refer to Fig.18 and Fig.19 , Fig.18 is Figure 5 a partial structural schematic diagram of the motor 1 shown in some embodiments, Fig.19 is Fig.18 a structural schematic diagram of a part of the structure of the motor 1 shown in another angle. Exemplarily, Fig.18 and Fig.19 mainly show the assembly structure between the base 11 and the anti-shake bracket 121.

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

[0196] Exemplarily, a part of the anti-vibration bracket 121 may be located inside the base 11. For example, the first protrusion 1218a and the second protrusion 1218b of the anti-vibration bracket 121 may be located inside the base 11. For example, the first receiving groove 1217a and the second receiving groove 1217b may be located inside the base 11.

[0197] Please refer to Fig.19 and Fig. 20 , Fig. 20 is Figure 5 a partial structural schematic diagram of the motor 1 in some embodiments as shown. Exemplarily, Fig. 20 mainly shows the assembly structure among the base 11, the anti-vibration bracket 121, and the SMA wire assembly 13.

[0198] In some embodiments, the SMA wire assembly 13 may be located on the bottom side of the base 11 and the anti-vibration bracket 121. One end of each SMA wire 131 is fixedly connected to the anti-vibration bracket 121, and the other end is fixedly connected to the base 11. Among them, the SMA wire 131 is made of a shape memory alloy (Shape Memory Alloy, SMA) material, such as a nickel-titanium alloy material. Shape memory alloy is a general term for a class of metals with shape memory effect. Shape memory alloy can completely eliminate the deformation that occurs at a lower temperature after heating up and restore its original shape before deformation. The basic principle of the shape memory alloy material working is to heat the material to above a certain critical temperature for shape memory heat treatment (training) and make it undergo a certain deformation. After cooling to generate martensite phase, when it is heated above the critical temperature again, the low-temperature martensite phase undergoes inverse phase transformation to high-temperature austenite phase (i.e., reverse transformation occurs), so as to restore to the state memorized before deformation. In this embodiment, when the SMA wire 131 is energized, the heat generated by the energization causes the temperature of the SMA wire 131 to rise, so that the SMA wire 131 shrinks to generate a resultant force, driving the anti-vibration bracket 121 to move relative to the base 11.

[0199] In some embodiments, the fixed jaw 132 is fixedly connected to the base 11. Exemplarily, the fixed jaw 132 can be fixedly connected to the second surface 113b of the base plate 113.

[0200] Exemplarily, the four fixed jaws 132 can be respectively arranged in one-to-one correspondence with the four side portions of the base 11, and are respectively electrically connected to the four second conductive inserts 112 of the base 11. For example, the first fixed jaw 132a can correspond to the first side portion 1131, and the first fixed jaw 132a is electrically connected to the third sub-insert 112a. The second fixed jaw 132b can correspond to the second side portion 1132, and is electrically connected to the fourth sub-insert 112b. The third fixed jaw 132c can correspond to the third side portion 1133, and is electrically connected to the fifth sub-insert 112c. The fourth fixed jaw 132d can correspond to the fourth side portion 1134, and is electrically connected to the sixth sub-insert 112d. It can be understood that in this embodiment, the other ends of the four SMA wires 131 can be fixedly connected to the base 11 through the four fixed jaws 132 respectively.

[0201] In some embodiments, the first movable jaw 133a is fixedly connected to the anti-vibration bracket 121 and is electrically connected to the first sub-insert 1231. In this way, one end of the two SMA wires 131 can be fixedly connected to the anti-vibration bracket 121 through the first movable jaw 133a and is electrically connected to the first sub-insert 1231. For example, one end of the first SMA wire 131a and one end of the third SMA wire 131c can be fixedly connected to the anti-vibration bracket 121 through the first movable jaw 133a and are electrically connected to the first sub-insert 1231.

[0202] Exemplarily, the first movable jaw 133a can be fixedly connected to the first bottom surface 1213 of the bracket main body 1211.

[0203] Exemplarily, the first main body portion 1331a of the first movable jaw 133a can be fixedly connected to the first protruding portion 1218a of the anti-vibration bracket 121 and is electrically connected to the first sub-insert 1231. At this time, the first movable jaw 133a can correspond to the first corner portion 1135a of the base 11. The first connection end 1332a of the first movable jaw 133a can be disposed opposite to the first side portion 1131 of the base 11, and the second connection end 1333a can be disposed opposite to the second side portion 1132 of the base 11.

[0204] In some embodiments, the second movable jaw 133b is fixedly connected to the anti-vibration bracket 121 and is electrically connected to the second sub-insert 1232. In this way, one end of the other two SMA wires 131 can be fixedly connected to the anti-vibration bracket 121 through the second movable jaw 133b and is electrically connected to the second sub-insert 1232. For example, one end of the third SMA wire 131c and one end of the fourth SMA wire 131d can be fixedly connected to the anti-vibration bracket 121 through the second movable jaw 133b and are electrically connected to the second sub-insert 1232.

[0205] Exemplarily, the second movable jaw 133b can be fixedly connected to the first bottom surface 1213 of the bracket main body 1211.

[0206] Exemplarily, the second main body portion 1331b of the second movable jaw 133b can be fixedly connected to the second protrusion 1218b of the anti-vibration bracket 121 and is electrically connected to the second sub-insert 1232. At this time, the second movable jaw 133b can correspond to the third corner portion 1135c of the base 11. The third connection end 1332b of the second movable jaw 133b can be disposed opposite to the third side portion 1133 of the base 11, and the fourth connection end 1333b can be disposed opposite to the fourth side portion 1134 of the base 11.

[0207] Please continue to refer to Fig.19 and Fig. 20 In some embodiments, the four SMA wires 131 can be respectively disposed corresponding to the first side portion 1131, the second side portion 1132, the third side portion 1133, and the fourth side portion 1134 of the base 11. For example, the first SMA wire 131a can correspond to the first side portion 1131. The second SMA wire 131b can correspond to the second side portion 1132. The third SMA wire 131c can correspond to the third side portion 1133. The fourth SMA wire 131d can correspond to the fourth side portion 1134.

[0208] Among them, the length extension directions of the first SMA wire 131a and the third SMA wire 131c can be the first direction. When the first SMA wire 131a and / or the third SMA wire 131c are energized and heated, they will contract, generating a corresponding pulling force on the anti-vibration bracket 121, driving the anti-vibration bracket 121 to move relative to the base 11 in the first direction. Among them, the length extension directions of the second SMA wire 131b and the fourth SMA wire 131d can be the second direction. When the second SMA wire 131b and / or the fourth SMA wire 131d are energized and heated, they will contract, generating a corresponding pulling force on the anti-vibration bracket 121, driving the anti-vibration bracket 121 to move relative to the base 11 in the second direction.

[0209] In this embodiment, the four SMA wires 131 can drive the anti-shake bracket 121 to move relative to the base 11 in the first direction and the second direction. The second direction intersects the first direction. For example, the first direction may be the X-axis direction. The second direction may be the Y-axis direction.

[0210] It can be understood that in this application, since the SMA wire 131 contracts when electrified and heated, a corresponding pulling force will be generated on the anti-shake bracket 121. Therefore, the camera module can control the electrical signals of the four SMA wires 131 so that the resultant force exerted by the four SMA wires 131 on the anti-shake bracket 121 is directed towards the expected direction. Thus, the anti-shake bracket 121 can move the lens 2 (please refer to Figure 3B ) to the expected direction and position, enabling the camera module to achieve anti-shake by translating the lens 2.

[0211] In some other embodiments, the SMA wire assembly 13 can also be located at other positions of the base 11 and the anti-shake bracket 121, and this application does not strictly limit this. For example, the SMA wire assembly 13 can also be located on the top side of the base 11 and the anti-shake bracket 121. At this time, the fixed claw 132 can be fixedly connected to the first surface 113a of the bottom plate 113. Both the first movable claw 133a and the second movable claw 133b can be fixedly connected to the first top surface 1212 of the bracket body 1211.

[0212] Please refer to Fig.21 and Fig. 22 , Fig.21 Figure 5 for the partial structural decomposition diagram of the motor 1 in some embodiments shown, Fig. 22 which is Fig.21 the assembly diagram of the partial structure of the motor 1 shown. Exemplarily, Fig.21 and Fig. 22 mainly show the structures of the base 11, the anti-shake bracket 121, the first reed 141, and the second reed 142.

[0213] In some embodiments, both the first reed 141 and the second reed 142 are connected to the base 11 and the anti-shake bracket 121. The first reed 141 and the second reed 142 can be used to provide an elastic force that moves the anti-shake bracket 121 back to the equilibrium position when the anti-shake bracket 121 moves relative to the base 11 and leaves the equilibrium position. Among them, the first reed 141 is the Figure 7B first reed 141 shown. The specific structure of the first reed 141 can refer to the relevant description in Figure 7B , and will not be elaborated here.

[0214] Exemplarily, the first end 1411 of the first reed 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 reed 141 can correspond to the fourth corner 1135d of the base 11. It can be understood that in the embodiment of the present application, the first reed 141 can be fixedly connected to the first surface 113a of the bottom plate 113 of the base 11, while one end of the SMA wire 131 is fixedly connected to the second surface 113b of the bottom plate 113. At this time, the first reed 141 and the SMA wire 131 can be respectively located on opposite sides of the base 11. On the one hand, the first reed 141 and the SMA wire 131 can reasonably utilize the space on the base 11, making the structure of the conduction path 10 more reasonable and the structure of the motor 1 simpler; on the other hand, it can avoid interference between the first reed 141 and the SMA wire 131 during the anti-shake process.

[0215] Exemplarily, the second end 1412 of the first reed 141 is fixedly connected to the first side 121a of the anti-shake bracket 121 and electrically connected to the first sub-insert 1231. For example, the second end 1412 of the first reed 141 can be fixedly connected to the first connecting portion 1214a of the anti-shake bracket 121. It can be understood that the second end 1412 of the first reed 141 can correspond to the first side portion 1131 of the base 11. The first conductive insert 111 can be electrically connected to the first sub-insert 1231 through the first reed 141.

[0216] Exemplarily, the third end 1413 of the first reed 141 is fixedly connected to the fourth side 121d of the anti-shake bracket 121 and electrically connected to the second sub-insert 1232. For example, the third end 1413 can be fixedly connected to the fourth connecting portion 1214d of the anti-shake bracket 121. It can be understood that the third end 1413 of the first reed 141 can correspond to the fourth side portion 1134 of the base 11. The first conductive insert 111 can be electrically connected to the second sub-insert 1232 through the first reed 141. In this embodiment, the first reed 141 forms a part of the conduction path 10. The first conductive insert 111 can be electrically connected to the third conductive insert 123 through the first reed 141.

[0217] In the embodiment of the present application, on the one hand, the first reed 141 can be used to provide an elastic force for moving the anti-shake bracket 121 back to the equilibrium position when the anti-shake bracket 121 moves relative to the base 11 and leaves the equilibrium position; on the other hand, it can also form a part of the conduction path 10 to electrically connect the first conductive insert 111 to the third conductive insert 123. The first reed 141 has the effect of "serving multiple purposes with one object".

[0218] It can be understood that, in the embodiment of the present application, the first reed 141 can be fixedly connected to the first top surface 1212 of the bracket main body 1211 of the anti-shake bracket 121, and one end of the SMA wire 131 is fixedly connected to the first bottom surface 1213 of the bracket main body 1211. At this time, the first reed 141 and the SMA wire 131 can be located on opposite sides of the anti-shake bracket 121 respectively. On the one hand, the first reed 141 and the SMA wire 131 can make reasonable use of the space on the anti-shake bracket 121, 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 interference between the first reed 141 and the SMA wire 131 during the anti-shake process.

[0219] Exemplarily, the second reed 142 can include a first end 1421, a second end 1422 and a third end 1423. The second end 1422 and the third end 1423 of the second reed 142 are both connected to the first end 1421. Among them, the first end 1421 of the second reed 142 can be fixedly connected to the second protrusion 1137 of the base 11. Among them, the second end 1422 of the second reed 142 can be fixedly connected to the second side 121b of the anti-shake bracket 121. For example, the second end 1422 of the second reed 142 can be fixedly connected to the second connecting portion 1214b of the anti-shake bracket 121. Among them, the third end 1423 of the second reed 142 can be fixedly connected to the third side 121c of the anti-shake bracket 121. For example, the third end 1423 of the second reed 142 can be fixedly connected to the third connecting portion 1214c of the anti-shake bracket 121.

[0220] Please refer to Fig.23 , Fig.23 is Figure 5 a partial structure top view of the motor 1 in some embodiments as shown. Exemplarily, Fig.23 mainly shows the relative positions of the four conductive paths 10 and the base 11. Among them, Fig.23 in (a), (b), (c), and (d) of

[0221] In some embodiments, the conductive path 10 to which each SMA wire 131 belongs turns back at the side corresponding to the SMA wire 131. It can be understood that the conductive path 10 turning back at the side corresponding to the SMA wire 131 means that when the conductive path 10 to which each SMA wire 131 belongs is energized, the conductive path 10 forms currents with opposite directions at the side corresponding to the SMA wire 131, but it is not limited that the current must change direction at the side corresponding to the SMA wire 131. For example, the current on the conductive path 10 can change direction at the side corresponding to the SMA wire 131 to form currents with opposite directions at the side corresponding to the SMA wire 131; the current on the conductive path 10 can also change direction at the corner connecting this side to form currents with opposite directions at the side corresponding to the SMA wire 131.

[0222] In the embodiment of the present application, one end of the first conductive insert 111 and one end of the second conductive insert 112 are both exposed from the first side 1131 of the bottom plate 113. When the conductive path 10 is energized, the current can flow from the first side 1131 of the bottom plate 113 to each SMA wire 131 and turn back at the side corresponding to each SMA, so that the current returns to the first side 1131, thereby avoiding the current of the conductive path 10 forming a circular or similar circular loop. In addition, after the current flows through the SMA wire 131, it turns back at the side corresponding to the SMA and will not turn back after flowing through other sides. In this way, the conductive path 10 is shorter. The structure of the conductive path 10 and the motor 1 is relatively simple.

[0223] As Fig.23 shown in (a) of, the second end 1412 of the first reed 141 and the first sub-insert 1231 are both arranged corresponding to the first side 1131. The first conductive path 101 corresponds to the first side 1131 of the base 11 and turns back at the fourth corner 1135d, the first corner 1135a, and the first side 1131 in sequence. Exemplarily, the current directions of the first SMA wire 131a and the first sub-insert 1231 at the first side 1131 are opposite. The current on the first SAM wire is opposite to that on the third sub-insert 112a. It can be understood that the current on the first conductive path 101 can turn back three times at the first side 1131.

[0224] As Fig.23 shown in (b) of, the second conductive path 102 corresponds to the first side 1131 and the second side 1132 of the base 11 and turns back at the fourth corner 1135d and the second side 1132. Exemplarily, the current directions of the second SMA wire 131b and the fourth sub-insert 112b at the second side 1132 are opposite. It can be understood that the current on the second conductive path 102 can turn back once at the second side 1132.

[0225] As Fig.23As shown in (c), the third end 1413 of the first reed 141 and the second sub-insert 1232 are both correspondingly arranged with the fourth side portion 1134. The third conduction path 103 corresponds to the first side portion 1131, the fourth side portion 1134 and the third side portion 1133 of the base 11, and turns back at the third side portion 1133. Exemplarily, the current directions of the third SMA wire 131c and the fifth sub-insert 112c at the third side portion 1133 are opposite. It can be understood that the current on the third conduction path 103 can turn back once at the third side portion 1133.

[0226] As Fig.23 shown in (d), the fourth conduction path 104 corresponds to the first side portion 1131 and the fourth side portion 1134 of the base 11, and turns back at the third corner portion 1135c. Exemplarily, the current directions of the fourth SMA wire 131d and the second sub-insert 1232 at the fourth side portion 1134 are opposite. It can be understood that the current on the fourth conduction path 104 can turn back once at the fourth side portion 1134.

[0227] It can be understood that in the present application, the four SMA wires 131 of the motor 1 can be electrically connected to the conductive inserts in the base 11 by using the third conductive inserts 123 (such as the first sub-insert 1231 and the second sub-insert 1232) in the anti-vibration bracket 121 and the first reed 141, and respectively form the conduction paths 10. Through the conduction paths 10 provided by the embodiments of the present application, the four conduction paths 10 of the motor 1 are all turning-back paths, and no circular loop or loop similar to a circular loop will be formed, so that the risk of electromagnetic interference to the image sensor 4 during PWM driving can be reduced. And, the conduction paths 10 are relatively short, and their structures are relatively simple and reasonable. The reliability of the conduction paths 10 and the motor 1 is relatively good.

[0228] Please refer to Fig.24 and Fig.25 , Fig.24 which Figure 5 is a partial structural schematic diagram of the motor 1 shown in some embodiments, Fig.25 and Fig.18 is a partial cross-sectional structural schematic diagram of the partial structure of the motor 1 shown in some embodiments taken along E-E. Exemplarily, Fig.24 mainly shows the assembly structure between the base 11 and the ball group 16.

[0229] In some embodiments, the anti-vibration bracket 121 can be connected to the base 11 through the ball group 16. By using the ball group 16 to realize the movable connection between the anti-vibration bracket 121 and the base 11, it can reduce the frictional resistance between the base 11 and the anti-vibration bracket 121 while ensuring sufficient supporting force, and improve the smoothness of the movement process of the anti-vibration bracket 121 movably connected to the base 11.

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

[0231] Exemplarily, the abutting portion 1219 of the anti-shake bracket 121 may abut against the ball group 16. At this time, the anti-shake bracket 121 may be connected to the base 11 through the ball group 16. The anti-shake bracket 121 may move relative to the base 11 in the X-Y plane. Exemplarily, the three abutting portions 1219 of the anti-shake bracket 121 may be correspondingly arranged with the three ball groups 16 one by one, and the three abutting portions 1219 may respectively abut against the corresponding ball groups 16.

[0232] In some other examples, the number of the ball groups 16 and the receiving grooves 1138 may also be one, two or more than three respectively. The present application does not make strict limitations on this.

[0233] In some other embodiments, the motor 1 may not include the ball group 16 either. The anti-shake bracket 121 may also be connected to the base 11 through other structures (such as rollers).

[0234] Please refer to Fig.26A and Fig.26B , Fig.26A is Figure 6 a schematic structural view of the focusing bracket 122 shown in some embodiments at another angle, Fig.26B is Fig.26A a schematic structural view of the focusing bracket 122 shown at another angle.

[0235] In some embodiments, the focusing bracket 122 may include a second top surface 1221 and a second bottom surface 1222 which are arranged back to back. Exemplarily, the focusing bracket 122 may be generally in a frame shape. The focusing bracket 122 may be provided with a third mounting hole 1220, and the third mounting hole 1220 may penetrate through the second top surface 1221 and the second bottom surface 1222 of the focusing bracket 122.

[0236] Exemplarily, the focusing bracket 122 further includes an outer side surface 1223. The outer side 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 further 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 side surface 1223 of the focusing bracket 122.

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

[0238] Exemplarily, the focusing bracket 122 may further be provided with a third receiving groove 1227a and a fourth receiving groove 1227b that are 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 both 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 may both penetrate through 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 Fig.27A and Fig.27B , Fig.27A is Figure 5 a partial structural schematic diagram of the motor 1 shown in another angle in some embodiments, Fig.27B is Fig.27A a structural schematic diagram of a partial structure of the motor 1 shown in another angle. Exemplarily, Fig.27A and Fig.27B mainly show the assembly structure among the focusing bracket 122, the first focusing magnetic member 152, and the second focusing magnetic member 154.

[0240] In some embodiments, the first focusing magnetic member 152 may be mounted in the third mounting groove 1224 of the focusing bracket 122 (please refer to Fig.26A)。The second focusing magnetic member 154 can be installed in the fourth installation groove 1225 of the focusing bracket 122. Both the first focusing magnetic member 152 and the second focusing magnetic member 154 can be magnets or magnetically - enabled components. The first focusing magnetic member 152 can include at least two opposite polar directions. For example, the first focusing magnetic member 152 can include three magnets arranged along the Z - axis direction. It can be understood that the polar direction can be the direction from the north pole (N) towards the south pole (S), or the direction from the south pole (S) towards the north pole (N). The second focusing magnetic member 154 includes at least two opposite polar directions. For example, the second focusing magnetic member 154 can include three magnets arranged along the Z - axis direction.

[0241] Please refer to Fig.28 and Fig.29 , Fig.28 is Figure 5 a partial structural schematic diagram of the motor 1 shown in some embodiments, Fig.29 is Figure 5 a partial structural schematic diagram of the motor 1 shown in some embodiments. Exemplarily, Fig.28 mainly shows the assembly structure among the base 11, the anti - shake bracket 121, the first focusing coil 151, and the second focusing coil 153. Fig.29 mainly shows the assembly structure among the base 11, the anti - shake bracket 121, and the focusing bracket 122.

[0242] In some embodiments, the focusing bracket 122 is movably connected to the anti - shake bracket 121.

[0243] Exemplarily, the focusing bracket 122 can be located in the second mounting hole 1210 of the anti - shake bracket 121. The third receiving groove 1227a of the focusing bracket 122 can be correspondingly arranged with the first receiving groove 1217a of the anti - shake bracket 121. The fourth receiving groove 1227b of the focusing bracket 122 can be correspondingly arranged with the second receiving groove 1217b of the anti - shake bracket 121. A part of the connecting member 17 can be located in the third receiving groove 1227a, and a part can be located in the fourth receiving groove 1227b. In this way, the focusing bracket 122 can slide relative to the connecting member 17 along the third direction, so that it can move along the third direction relative to the anti - shake bracket 121 and the base 11. It can be understood that in this application, the connecting member 17 can be fixedly connected to the anti - shake bracket 121 and slidably connected to the focusing bracket 122; or, the connecting member 17 can be fixedly connected to the focusing bracket 122 and slidably connected to the anti - shake bracket 121. This application does not make a strict limitation on this.

[0244] Exemplarily, the number of the connecting members 17 can be two, and the two connecting members 17 can be respectively installed in the first receiving groove 1217a and the second receiving groove 1217b of the focusing bracket 122. Exemplarily, the connecting member 17 can be a sliding column.

[0245] In some other examples, the number of the connecting members 17 may also be one or more than two.

[0246] In some other examples, the connecting member 17 may also be other structural members such as ball bearings.

[0247] Exemplarily, the fifth mounting groove 1226 of the focusing bracket 122 may be exposed relative to the anti-shake bracket 121.

[0248] Please refer to Fig.29 and Fig.30 , Fig.30 which is Fig.28 a partial cross-sectional structure schematic diagram of a part of the structure of the motor 1 shown in some embodiments along the F-F section.

[0249] In some embodiments, the first focusing coil 151 may be installed in the first mounting groove 1216a of the anti-shake bracket 121. The first focusing coil 151 may be arranged facing the first focusing magnetic member 152 and is used to drive the focusing bracket 122 to move relative to the anti-shake bracket 121 in the third direction. Among them, the first focusing coil 151 being arranged facing the first focusing magnetic member 152 means that the winding plane of the first focusing coil 151 faces the first focusing magnetic member 152. For example, the winding plane of the first focusing coil 151 may be parallel to the X-Z plane. Among them, the first direction and the second direction both intersect with the third direction. Exemplarily, the third direction may be the Z-axis direction.

[0250] Exemplarily, the second focusing coil 153 may be installed in the second mounting groove 1216b. The second focusing coil 153 may be arranged facing the second focusing magnetic member 154 and is used to drive the focusing bracket 122 to move relative to the anti-shake bracket 121 in the third direction.

[0251] It can be understood that under the drive of the first focusing coil 151, the first focusing magnetic member 152, the second focusing coil 153, and the second focusing magnetic member 154, the focusing bracket 122 can move relative to the base 11 in the third direction and has good stability.

[0252] In some other embodiments, the motor 1 may also not include the second focusing coil 153 and the second focusing magnetic member 154.

[0253] Please refer to Fig.31 and Fig.32 , Fig.31 which is Figure 5 a partial exploded view of the structure of the motor 1 shown in some embodiments, Fig.32 which is Figure 5 a partial structure schematic diagram of the motor 1 shown in some embodiments.

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

[0255] Exemplarily, the focusing circuit board 155 may include a first portion 1551, a second portion 1552, and a connecting section connecting between the first portion 1551 and the second portion 1552. Among them, 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 surface 113c of the base 11. Exemplarily, the first portion 1551 of the focusing circuit board 155 may be disposed at the third side portion 1133 of the base 11. In some other examples, the first portion 1551 of the focusing circuit board 155 may also be disposed at other positions of the base 11, and the present application does not strictly limit this.

[0256] Among them, the second portion 1552 of the focusing circuit board 155 is fixedly connected to the anti-shake bracket 121. Exemplarily, the first portion 1551 of the focusing circuit board 155 may be disposed at the third side 121c of the anti-shake bracket 121. At this time, 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 away from the first side portion 1131 of the third side portion 1133.

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

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

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

[0260] Exemplarily, the second connection segment 1554 is fixedly connected to the anti-shake bracket 121. For example, the second connection segment 1554 can be fixedly connected to the avoidance groove 1215 of the anti-shake bracket 121. Exemplarily, the second connection segment 1554 can surround a part of the second mounting hole 1210. For example, the second connection segment 1554 can extend from the third side 121c of the anti-shake bracket 121 to the fourth side 121d to connect the second part 1552 of the focusing circuit board 155.

[0261] In this embodiment, by setting the connection segment to be bent, and the first connection segment 1553 can extend a certain length around the side surface 113c of the base 11. In this way, during the movement of the anti-shake bracket 121 relative to the base 11, when the focusing circuit board 155 is pulled, the connection segment can undergo a certain deformation, so as to avoid stress concentration on the focusing circuit board 155, and further reduce the risk of the focusing circuit board 155 breaking.

[0262] Please refer to Fig.32 and Fig.33 , Fig.33 is Fig.31 a schematic structural view of a part of the motor 1 shown in another angle.

[0263] In some embodiments, the first part 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 the 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 the second side of the base 11. Among them, the first side and the second side of the base 11 are respectively opposite sides of the base 11.

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

[0265] Please refer to Fig.33 and Fig.34 , Fig.34 is Figure 3A a schematic structural view of a part of the camera module 100 shown in some embodiments.

[0266] In some embodiments, the driving 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 driving chip 5 can transmit a PWM signal to the SMA wire 131 through the first conductive insert 111 and the second conductive insert 112. The driving chip 5 can transmit an Inter-Integrated Circuit (I2C) signal to the motor 1 through the focusing circuit. It can be understood that the I2C signal can be used to control the focusing operation of the motor 1.

[0267] Exemplarily, the driving chip 5 is electrically connected to one end of the first conductive insert 111 through the first trace 61, to one end of the second conductive insert 112 through the second trace 62, and to the connection end 1550 of the focusing circuit board 155 through the third trace 63. Among them, 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 can be understood that the first conductive insert 111 and the second conductive insert 112 transmit PWM signals. Since PWM will form periodic electromagnetic radiation signals, if they are coupled to adjacent signal lines, interference will be generated. For example, the PWM signal will interfere with the I2C signal on the focusing circuit board 155. In this embodiment, by exposing the connection end 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 end 1550 of the focusing circuit board 155 can be far away from one end of the first conductive insert 111 and one end of the second conductive insert 112. In this way, the PWM signal 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, so that the driving chip 5 can better control the focusing operation of the motor 1 to achieve a better focusing effect.

[0269] Please refer to Fig.35 , Fig.35 is Fig.32 a partial structural schematic diagram of the motor 1 shown in FIG. cut along the G-G.

[0270] In some embodiments, the focusing sensor 156 is fixedly connected to the focusing circuit board 155 and is electrically connected to the focusing circuit board 155. It can be understood that the driving chip 5 can transmit a signal to the focusing sensor 156 through the focusing circuit board 155.

[0271] Exemplarily, the focusing sensor 156 can be fixedly connected to the second part 1552 of the focusing circuit board 155. At this time, the focusing sensor 156 can be arranged facing the focusing bracket 122. The focusing sensor 156 can be used to detect the position change of the focusing bracket 122. For example, the focusing sensor 156 can be used to detect the position change of the focusing bracket 122 in the third direction. In this way, the imaging module 100 can adjust the position of the focusing bracket 122 according to the detection result of the focusing sensor 156, so as to achieve a better focusing effect.

[0272] In the embodiment of the present application, 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 confirm the position of the focusing bracket 122 more accurately, so that the movement of the focusing bracket 122 can be better controlled.

[0273] Exemplarily, the focusing sensor 156 can be a Tunnel MagnetoResistance (TMR) sensor. The focusing sensor 156 can be arranged opposite to the fifth mounting groove 1226 of the focusing bracket 122. The motor 1 can further include a magnetic grating 157, and the magnetic grating 157 can be installed in the fifth mounting groove 1226 of the focusing bracket 122. At this time, the focusing sensor 156 can be arranged opposite to the magnetic grating 157. When a relative movement occurs between the focusing sensor 156 and the magnetic grating 157, the focusing sensor 156 can be used to sense the position change of the magnetic grating 157, so as to achieve the purpose of detecting the position change of the focusing bracket 122.

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

[0275] Please refer to Fig.36 and Fig.37 , Fig.36 is Figure 5 the partial exploded view of the motor 1 in some embodiments as shown, Fig.37 is Figure 5 the partial cross-sectional structure schematic diagram of the motor 1 cut along the H-H in some embodiments as shown.

[0276] In some embodiments, the housing 18 can cover the base 11. For example, the housing 18 can be fixedly connected to the base 11 by means of glue or the like. Exemplarily, the housing 18 can be adapted to the shape of the motor 1. The housing 18 can be assembled and cooperated with the base 11 to jointly package and protect the internal structure of the motor 1.

[0277] Exemplarily, 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 jointly enclose an internal space 183. The internal structure of the motor 1 (including at least part of the base 11, the anti-shake bracket 121, and the focusing bracket 122) can be located in the internal space 183 of the housing 18.

[0278] Exemplarily, the through hole 180 of the housing 18 can be provided on the top cover 181. The through hole 180 can communicate with 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 can be understood that in the above solution, the imaging module 100 can include a motor 1, an image sensor 4, and a driving chip 5. Among them, the motor 1 is an SMA motor 1, that is, the motor 1 can include an SMA wire 131, and the SMA wire 131 is driven by a PWM signal to achieve anti-shake. When the high and low levels of the PWM signal flip, the SMA wire 131 transmits the signal. Since the PWM will form a periodic electromagnetic radiation signal, through spatial coupling, this periodic electromagnetic radiation signal will generate electromagnetic interference (EMI) to adjacent signals. Exemplarily, the position of the SMA wire 131 is very close to the image sensor 4. Due to the electromagnetic coupling effect, this periodic electromagnetic radiation signal will strongly interfere with the image sensor 4, thereby affecting the electrical signal generated by the image sensor 4. For example, when the anti-shake of the motor 1 and the exposure of the image sensor 4 are synchronously turned on, it will cause stripe interference in the image formed by the image sensor 4.

[0280] Please refer to Fig.38 , Fig.38 which is the imaging timing diagram of the image sensor 4 of the imaging module 100 in some embodiments.

[0281] When the camera module 100 takes pictures, the image sensor 4 continuously collects images. The image sensor 4 is used to convert optical signals into electrical signals. Each frame of the image generated by the image sensor 4 is obtained by sampling the just signal multiple times. For each frame of picture generated by the image sensor 4, it corresponds to multiple signal acquisition periods. The image sensor 4 performs an optical signal - electrical signal conversion once in each signal acquisition period, converts the optical signal into an electrical signal and outputs it. In the process of converting the optical signal into an electrical signal, the image sensor 4 first converts the optical signal into an analog signal, and then converts the analog signal into a digital signal. Therefore, the signal acquisition period of the image sensor 4 can also be called the analog - to - digital conversion (ADC) period. And the time region outside the ADC period is the non - exposure area of the image sensor 4. In other words, in the non - exposure area of the image sensor 4, the camera module 100 does not take pictures.

[0282] The correlated double sampling (CDS) technology is a method to eliminate the influence of noise on the image sensor 4. Within one ADC period of the image sensor 4, the image sensor 4 performs one CDS, that is, it performs two samplings. The time difference between the starts of the two samplings of the CDS, that is, the period interval between the two samplings within one ADC period, can also be called the CDS interval. It should be understood that the ADC period is greater than the CDS interval.

[0283] Within one ADC period, the time when the image sensor 4 samples is the exposure - sensitive area of the image sensor 4. That is to say, the exposure - sensitive area includes the time when the image sensor 4 samples. And the time region outside the sampling of the image sensor 4 can be called the exposure - non - sensitive area, that is, the safe area. That is to say, in the exposure - non - sensitive area, the image sensor 4 does not sample.

[0284] During the two samplings within one ADC period, when the image sensor 4 collects the received light, if it is interfered (including but not limited to the interference generated by the driving signal and the detection signal of the driving chip 5), the noise generated by the interference will be collected, resulting in the interference received may be reflected in the generated image, affecting the imaging effect. Therefore, the present 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 can be understood that the control method of the camera module 100 provided in this application can be applied to the camera module 100 including the SMA motor 1. Among them, the SMA motor 1 is driven by the SMA wire 131 to achieve anti-shake and / or focusing, and the SMA wire 131 is a motor 1 driven by a PWM signal. For example, the control method of the camera module 100 provided in this application can be applied to the camera module 100 in any of the above embodiments. In the above solution, the motor 1 of the camera module 100 is a four-wire SMA motor, that is, the motor 1 includes four SMA wires 131, and the four SMA wires 131 are driven by a PWM signal to achieve anti-shake. For another example, the control method of the camera module 100 provided in this application can also be applied to the camera module 100 including an eight-wire SMA motor 1. It can be understood that the eight-wire SMA motor can include eight SMA wires, and the eight SMA wires can not only drive the lens of the motor to move in the X-Y plane, but also drive the lens of the motor to move in the Z-axis direction, so as to achieve the dual functions of optical anti-shake and focusing.

[0286] For ease of description, a control method of the camera module 100 will be introduced below based on the above solution of the camera module 100. Please refer to Fig.39 , Fig.39 is the flow of a control method of a camera module 100 provided by an embodiment of the present application Figure 1 .

[0287] The control method of the camera module 100 includes:

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

[0289] For the application of the image sensor 4, the image sensor 4 can output some timing signals. The timing signals can include synchronization signals. For example, if the image sensor 4 uses row sampling, the synchronization signals can include a frame synchronization signal, a horizontal synchronous (H-SYNC) signal, etc. Both the H-SYNC signal and the V-SYNC signal are pulse signals. These two synchronization signals are both sent periodically. Among them, the frame synchronization signal can also be called a frame start signal, a column synchronization signal, or a vertical synchronous (V-SYNC) signal, and is used to indicate that the image sensor 4 starts to acquire a frame of image. In other words, the image sensor 4 generates a V-SYNC signal at the beginning of each new image frame.

[0290] Such as Fig.38As shown, in this embodiment, the image processor can output a synchronization signal (such as a V-SYNC signal) and after a delay time T, perform the first sampling. It can be understood that the delay time T can be greater than zero or equal to zero. When the extension time T is greater than zero, the image sensor 4 delays the start times of the exposure-sensitive area and the exposure-insensitive area of the image sensor 4. When the delay time T is equal to zero, the image processor performs the first sampling while outputting the synchronization signal.

[0291] When the camera module 100 is turned on, the motor 1 is initialized. The image sensor 4 can adjust the delay time T and confirm the delay time T. It can be understood that after the delay time is determined, the timings of the non-exposure area, the exposure-sensitive area, and the exposure-insensitive area of the image sensor 4 can also be determined.

[0292] It can be understood that the driving chip 5 is electrically connected to the image sensor 4. For example, the synchronous (SYNC) signal port or the interrupt signal port of the driving chip 5 can be connected to the port of the image sensor 4 for outputting the V-SYNC signal. The SYNC signal port or the interrupt signal port of the driving chip 5 can receive the synchronization signal, that is, the driving chip 5 can receive the V-SYNC input. And, the driving chip 5 can also obtain the delay time T from the image sensor 4. In this way, the driving chip 5 can confirm the timing of the non-exposure area of the image sensor 4 according to the V-SYNC signal and the delay time T, so as to obtain the timings of the exposure-sensitive area and the exposure-insensitive area of the image sensor 4. In other words, the driving 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. Among them, the driving signal is used to cause the SMA line 131 to deform, and the detection signal is used to detect 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 driving chip 5 of the camera module 100 is electrically connected to the SMA line 131 and can output a pulse signal to the SMA line 131. The pulse signal can include a driving signal for causing the SMA line 131 to deform and a detection signal for detecting the deformation of the SMA line 131.

[0295] It can be understood that according to the characteristics of the SMA material, when the temperature is different, the length and cross-sectional area of the SMA wire 131 change, thereby causing the impedance of the SMA wire 131 to change. According to the change in the electrical properties caused by the change in the impedance value of the SMA wire 131, the deformation condition of the SMA wire 131 can be determined.

[0296] In order to determine the deformation condition of the SMA wire 131, the detection signal can be directly applied to both ends of the SMA wire 131, and the current flowing through the SMA wire 131 can be measured. According to the current flowing through the SMA wire 131 to form a feedback signal, the deformation of the SMA wire 131 can be determined. Alternatively, each SMA wire 131 is connected in series with a voltage-dividing resistor to divide the voltage of the power supply. The voltage-dividing resistor can be a fixed-value resistor, that is, the SMA wire 131 and the fixed-value resistor in series can form a voltage-dividing circuit. A voltage is applied across the circuit formed by the SMA wire 131 and the voltage-dividing resistor, and the impedance of the SMA wire 131 can be determined according to the voltage division condition of the SMA wire 131 and the voltage-dividing resistor. It can be understood that the driving chip 5 performs analog-to-digital conversion on the collected current or voltage signal to form a feedback signal. The feedback signal can reflect the deformation of the SMA wire 131. According to the correspondence between the feedback signal and the deformation amount of the SMA wire 131, the deformation condition of the SMA wire 131 can be determined.

[0297] In this embodiment, when the driving chip 5 outputs a driving signal and the current generated by the driving signal flows through the SMA wire 131, the SMA wire 131 generates heat and deforms. The driving chip 5 can adjust the driving signal by detecting the impedance change of the SMA wire 131, and can more accurately control the deformation of the SMA wire 131. However, during the two samplings of the image sensor 4 within one ADC cycle, if it is affected by the detection signal, the noise generated by the interference will be collected, resulting in interference stripes 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 non-exposure sensitive 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 avoiding the interference noise of the detection signal being collected by the image sensor 4 and affecting the imaging effect of the image sensor 4.

[0299] In the embodiment of the present application, 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-exposed 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-exposed area of the image sensor 4. In other words, the driving chip 5 can output the detection signal in the insensitive area of the image sensor 4, or in the non-exposed area of the image sensor 4.

[0300] It can be understood that the synchronization signal and the delay time of the image sensor 4 can be used as trigger signals to reset the starting position of the pulse signal period of the driving chip 5. For example, the pulse signal can be aligned with the synchronization signal. The reset of the starting position of the pulse signal period does not change the length of the pulse signal period. After the reset, the driving chip 5 still outputs the pulse signal according to the previous pulse signal period and detection period.

[0301] Since the image sensor 4 does not sample in both the exposure-insensitive area and the non-exposed area. Therefore, in the exposure-insensitive area, the image sensor 4 is insensitive to external interference. Even if the interference exists, since the image sensor 4 does not sample in this area, the interference will not be displayed in the picture. So in the exposure-insensitive area, the output of the driving signal and the detection signal of the driving chip 5 does not affect the image effect. And in the present application, by outputting the detection signal output by the driving chip 5 in the exposure-insensitive area of the image sensor 4, noise stripes can be avoided from appearing in the generated image.

[0302] Please refer to Fig.40 , Fig.40 which is the flow of a control method for a camera module 100 provided by an embodiment of the present application Figure 2 .

[0303] In some embodiments, 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) includes:

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

[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 the falling edge of the detection signal to fall within the period of the exposure-insensitive area of the image sensor 4.

[0307] It can be understood that when the period of the detection signal is less than the period of the exposure-insensitive region of the image sensor 4, the exposure-insensitive region of the image sensor 4 can completely accommodate the detection signal. At this time, the entire period of the control detection signal can fall within the period of the exposure-insensitive region of the image sensor 4. The detection signal can completely avoid the exposure-sensitive region of the image sensor 4, so that the interference noise of the detection signal can be avoided from being collected by the image sensor 4.

[0308] Please refer to Fig.41 , Fig.41 which is the correspondence between the timing of the pulse signal of the driving chip 5 and the imaging timing of the image sensor 4 Figure 1 .

[0309] Among them, a represents the width of the driving signal, w represents the width of the detection signal. The driving chip 5 periodically outputs a pulse signal, and the pulse signal includes a driving signal and a detection signal. t represents the length of the pulse signal period. In different control cycles, the width of the detection signal can be a fixed value, and the width of the driving signal can be the same or different. Exemplarily, the period of the detection signal is less than the period of the exposure-insensitive region of the image sensor 4. At this time, the entire period of the detection signal can fall within the period of the exposure-insensitive region of the image sensor 4. The detection signal can completely avoid the exposure-sensitive region of the image sensor 4, so that the interference noise of the detection signal can be avoided from being collected by the image sensor 4.

[0310] In some examples, the driving chip 5 can output the detection signal in the second half of the exposure-insensitive region of the image sensor 4.

[0311] In some examples, the frequency of the driving signal output by the driving chip 5 can be 300K. The period of the detection signal output by the driving chip 5 can be 2 μs. The period of the exposure-insensitive region of the image sensor 4 can be 2.5 μs. At this time, the period of the detection signal is less than the period of the exposure-insensitive region of the image sensor 4. The driving chip 5 controls both the rising edge and the falling edge of the detection signal to fall within the period of the exposure-insensitive region of the image sensor 4. For example, the driving chip 5 controls the period of the first detection signal to fall within the period of the insensitive region of the image sensor 4.

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

[0313] Please continue to refer to Fig.40, after step S201: Step S2012: If the period of the detection signal is equal to the period of the non-exposure sensitive area of the image sensor 4, control the rising edge of the detection signal to fall within the period of the non-exposure sensitive 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] It can be understood that when the period of the detection signal is equal to the period of the non-exposure sensitive area of the image sensor 4, the non-exposure sensitive area of the image sensor 4 is not sufficient to fully accommodate the detection signal, or due to time precision issues, there is a risk that it cannot fully accommodate the detection signal. At this time, controlling the rising edge of the detection signal to avoid the exposure sensitive area of the image sensor 4 can reduce the interference noise of the detection signal being collected by the image sensor 4.

[0315] Please refer to Fig.42 , Fig.42 is the correspondence between the timing of the pulse signal of the driving chip 5 and the imaging timing of the image sensor 4 Figure 2 . Among them, 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. Exemplarily, the period of the detection signal is equal to the period of the non-exposure sensitive area of the image sensor 4. At this time, 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 being collected by the image sensor 4.

[0316] Exemplarily, 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] It can be understood that after the driving chip 5 determines that the period of the detection signal is neither less than the period of the non-exposure sensitive area of the image sensor 4 nor equal to the period of the non-exposure sensitive area of the image sensor 4, it can be determined that the period of the detection signal is greater than the period of the non-exposure sensitive area of the image sensor 4.

[0318] Please continue to refer to Fig.40 , after step S201: Step S2013: If the period of the detection signal is greater than the period of the non-exposure area of the image sensor 4, control both the rising edge and the falling edge of the detection signal to fall within the period of the non-exposure area of the image sensor 4. At this time, the entire period of the detection signal can fall within the period of the non-exposure area of the image sensor 4. The detection signal can completely avoid the exposure sensitive area of the image sensor 4, thereby avoiding the interference noise of the detection signal being collected by the image sensor 4.

[0319] It can be understood that when the driving chip 5 compares the period of the detection signal with the period of the non-exposure sensitive area of the image sensor 4, the judgment order and judgment type can be adjusted according to requirements. For example, Fig.40The middle drive chip 5 can first determine whether the period of the detection signal is less than the period of the exposure non-sensitive area of the image sensor 4. If the period of the detection signal is not less than the period of the exposure non-sensitive area of the image sensor 4, then it further determines whether the period of the detection signal is equal to the period of the exposure non-sensitive area of the image sensor 4.

[0320] In some other examples, the drive chip 5 can also first determine whether the period of the detection signal is equal to the period of the exposure non-sensitive area of the image sensor 4. If the period of the detection signal is not equal to the period of the exposure non-sensitive area of the image sensor 4, then it further determines whether the period of the detection signal is less than the period of the exposure non-sensitive area of the image sensor 4.

[0321] In some other examples, the drive chip 5 can first determine whether the period of the detection signal is less than the period of the exposure non-sensitive area of the image sensor 4. If the period of the detection signal is not less than the period of the exposure non-sensitive area of the image sensor 4, then it further determines whether the period of the detection signal is greater than the period of the exposure non-sensitive area of the image sensor 4.

[0322] In some other examples, the drive chip 5 can also first determine whether the period of the detection signal is greater than the period of the exposure non-sensitive area of the image sensor 4. If the period of the detection signal is not greater than the period of the exposure non-sensitive area of the image sensor 4, then it further determines whether the period of the detection signal is equal to the period of the exposure non-sensitive area of the image sensor 4; or, if the period of the detection signal is not greater than the period of the exposure non-sensitive area of the image sensor 4, then it further determines whether the period of the detection signal is less than the period of the exposure non-sensitive area of the image sensor 4.

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

[0324] Please refer to Fig.43 , Fig.43 which is the third flowchart of a control method for an imaging module 100 provided by an embodiment of the present application.

[0325] Step S20 (the drive 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: 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 non-sensitive area of the image sensor 4.

[0327] Exemplarily, the drive chip 5 can obtain the delay time T of the image sensor 4 (please refer to Fig.38), so that the register of the driving chip 5 can delay the time T according to the time of delaying the output detection signal, so that both the falling edge and the rising edge of the detection signal fall within the period of the exposure non-sensitive area of the image sensor 4, that is, the timing of the detection signal corresponds to the timing of the exposure non-sensitive area of the image sensor 4.

[0328] Please refer to Fig.44 , Fig.44 is the flow of a control method for a camera module 100 provided by an embodiment of the present application Figure 4 .

[0329] 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) includes:

[0330] Step S203: 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 non-sensitive 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] Exemplarily, the driving chip 5 can obtain the delay time T of the image sensor 4 (please refer to Fig.38 ), so that the register of the driving chip 5 can delay the time T according to the time of delaying the output detection signal, so that the rising edge of the detection signal falls within the period of the exposure non-sensitive 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, that is, the timing of the detection signal corresponds to the timing of the exposure non-sensitive area of the image sensor 4.

[0332] In the embodiment of the present application, the driving chip 5 can control the time of the detection signal through the register, so that the timing of the detection signal corresponds to the timing of the exposure non-sensitive area of the image sensor 4. In this way, the structure of the driving chip 5 is simple, and the method of controlling the start time of the detection signal is relatively simple.

[0333] It can be understood that all the above-mentioned drawings are exemplary illustrations of the present application and do not represent the actual size of the product. And the dimensional proportional relationship between the components in the drawings is not a limitation on the actual product of the present application either.

[0334] The above are only some embodiments of the present application. The protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A motor (1), characterized in that: It comprises a base (11), an anti-shake bracket (121), four SMA wires (131) and a focus bracket (122); A portion of the anti-shake bracket (121) is located on the inner side of the base (11); one end of each of the SMA wires (131) is fixedly connected to the anti-shake bracket (121), and the other end is fixedly connected to the base (11); the SMA wire (131) can drive the anti-shake bracket (121) to move relative to the base (11) along a first direction and a second direction; the focus bracket (122) is movably connected to the anti-shake bracket (121), and the focus bracket (122) can move relative to the base (11) along a third direction; the first direction, the second direction and the third direction intersect each other; The base (11) comprises a first conductive insert (111) and four second conductive inserts (112); the anti-shake bracket (121) comprises a third conductive insert (123); the first conductive insert (111) is electrically connected to one end of the four SMA wires (131) via the third conductive insert (123); and the other ends of the four SMA wires (131) are connected to the four second conductive inserts (112) in a one-to-one correspondence; The first conductive insert (111), the third conductive insert (123), an SMA wire (131) and the second conductive insert (112) connected in sequence form a conductive path (10), and the conductive path (10) is a return path.

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

3. The motor (1) according to claim 2, characterized in that The motor (1) further comprises a first reed (141), wherein the first reed (141) connects the base (11) and the anti-shake bracket (121), and electrically connects the first conductive insert (111) and the third conductive insert (123); The first reed (141) forms a part of the conductive path (10).

4. The motor (1) according to claim 3, characterized in that The third conductive inlay (123) comprises a first sub-inlay (1231) and a second sub-inlay (1232); The first spring sheet (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 bracket (121), and 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 both arranged corresponding to the first edge (1131), and the first sub-insert (1231) is electrically connected to the two SMA wires (131); The third end (1413) and the second sub-insert (1232) are both arranged corresponding to the fourth edge portion (1134), and the second sub-insert (1232) is electrically connected to the other two SMA wires (131).

5. The motor (1) according to claim 4, characterized in that The motor (1) further comprises a first movable claw (133a) and a second movable claw (133b), wherein the first movable claw (133a) and the second movable claw (133b) are both fixedly connected to the anti-shake bracket (121); The first movable claw (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 claw (133a); The second movable claw (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 claw (133b).

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

7. The motor (1) according to claim 5 or 6, characterized in that The bottom plate (113) further comprises a first corner portion (1135a), a third corner portion (1135c) and a fourth corner portion (1135d), wherein the first corner portion (1135a) is connected between the first side portion (1131) and the second side portion (1132), the third corner portion (1135c) is connected between the third side portion (1133) and the fourth side portion (1134), and the fourth corner portion (1135d) is connected between the fourth side portion (1134) and the first side portion (1131); The first movable claw (133a) corresponds to the first corner portion (1135a), the second movable claw (133b) corresponds to the third corner portion (1135c), and the first reed (141) corresponds to the fourth corner portion (1135d); The 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 side portion (1131), and is folded back in sequence at the fourth corner portion (1135d), the first corner portion (1135a), and the first side portion (1131); The second conductive path (102) corresponds to the first side portion (1131) and the second side portion (1132), and is folded back at the fourth corner portion (1135d) and the second side portion (1132); The third conductive path (103) corresponds to the first side portion (1131), the fourth side portion (1134) and the third side portion (1133), and is folded back at the third side portion (1133); The fourth conductive path (104) corresponds to the first side portion (1131) and the fourth side portion (1134), and is folded back at the third corner portion (1135c).

8. The motor (1) according to any one of claims 5 to 7, characterized in that The anti-shake bracket (121) also includes a bracket body (1211), the bracket body (1211) includes a first top surface (1212) and a first bottom surface (1213) arranged in back-to-back relation, the first reed (141) is fixedly connected to the first top surface (1212), and the first movable claw (133a) and the second movable claw (133b) are both fixedly connected to the first bottom surface (1213); The first sub-insert (1231) and the second sub-insert (1232) are at least partially embedded in the bracket body (1211); one end of the first sub-insert (1231) is exposed through the first top surface (1212) and is electrically connected to the second end (1412) of the first spring sheet (141); the other end of the first sub-insert (1231) is exposed through the first bottom surface (1213) and is electrically connected to the first movable claw (133a); One end of the second sub-insert (1232) is exposed through the first top surface (1212) and is electrically connected to the third end (1413) of the first spring sheet (141), and the other end of the second sub-insert (1232) is exposed through the first bottom surface (1213) and is electrically connected to the second movable claw (133b).

9. The motor (1) according to any one of claims 3 to 8, characterized in that The bottom plate (113) comprises a first surface (113a) and a second surface (113b) which are arranged in opposite directions, the first spring sheet (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 insert (111) is exposed through the first surface (113a) of the base plate (113) and is electrically connected to the first end (1411) of the first spring sheet (141); one end of the second conductive insert (112) is exposed through the second surface (113b) of the base plate (113) and is electrically connected to the SMA wire (131).

10. The motor (1) according to any one of claims 1 to 9, characterized in that The motor (1) further comprises a focus circuit board (155) and a focus sensor (156), wherein the focus circuit board (155) comprises a first part (1551) and a second part (1552), wherein the first part (1551) is fixedly connected to the base (11), and the second part (1552) is fixedly connected to the anti-shake bracket (121); The focus sensor (156) is fixedly connected and electrically connected to the second part (1552), and the focus sensor (156) is used to detect a position change of the focus bracket (122); The first part (1551) is provided with a connection end (1550), and the connection end (1550) 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 are opposite sides of the base (11).

11. The motor (1) according to claim 10, characterized in that The focusing circuit board (155) further comprises a first connecting section (1553) and a second connecting section (1554), wherein one end of the first connecting section (1553) is connected to the first part (1551), and the other end 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 facing 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 surface (113c) of the base (11); the second connecting section (1554) is bent relative to the first connecting section (1553) and is fixedly connected to the anti-shake bracket (121).

12. A camera module (100), characterized in that: It comprises a lens (2), an image sensor (4), a driving chip (5), and a motor (1) according to any one of claims 1 to 11, wherein the lens (2) is mounted on the focusing bracket (122), and 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).

13. An electronic device (1000), characterized in that: It comprises a device housing (200) and a camera module (100) as claimed in claim 12, wherein the camera module (100) is arranged in the device housing (200).

14. A method for controlling a camera module, characterized in that: The camera module (100) comprises a motor (1), an image sensor (4) and a driving chip (5); the motor (1) comprises a base (11), an anti-shake bracket (121) and an SMA wire (131); one end of the SMA wire (131) is fixedly connected to the base (11), and the other end is fixedly connected to the anti-shake bracket (121); the image sensor (4) is fixedly connected to the base (11); and the driving chip (5) is electrically connected to the image sensor (4) and the SMA wire (131); The control method comprises: The driving chip (5) obtains the imaging timing of the image sensor (4), wherein the imaging timing includes the timing of the non-exposure area, the timing of the exposure sensitive area, and the timing of the exposure non-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 cause the SMA wire (131) to deform, 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 an exposure non-sensitive area of ​​the image sensor (4), or corresponds to the timing of a non-exposure area of ​​the image sensor (4).

15. The control method according to claim 14, characterized in that: 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), including: The driving chip (5) compares the period of the detection signal with the period of the exposure non-sensitive area of ​​the image sensor (4); If the period of the detection signal is smaller than the period of the exposure non-sensitive area of ​​the image sensor (4), controlling the rising edge and the falling edge of the detection signal to fall within the period of the exposure non-sensitive area of ​​the image sensor (4); If the period of the detection signal is equal to the period of the exposure non-sensitive area of ​​the image sensor (4), the rising edge of the detection signal is controlled to fall within the period of the exposure non-sensitive area of ​​the image sensor (4), and the falling edge of the detection signal is controlled to fall within the period of the exposure sensitive area of ​​the image sensor (4); If the period of the detection signal is greater than the period of the exposure 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).

16. The control method according to claim 14 or 15, characterized in that: The driving chip (5) is provided with 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 non-sensitive area of ​​the image sensor (4); Alternatively, 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 non-sensitive 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).

Images