Lens driving motor, camera device and electronic equipment

Abstract

The utility model discloses a lens driving motor, a camera device and electronic equipment, and belongs to the technical field of electronics. The lens driving motor comprises a bearing assembly, a locking mechanism and a shell assembly. The bearing assembly is suitable for bearing the lens assembly, a moving channel and a limiting channel are arranged on the side wall of the bearing assembly, the moving channel extends in the first direction, and the limiting channel is communicated with the moving channel and extends in the second direction. The locking mechanism comprises a limiting piece, the limiting piece comprises a body and a protruding block which are connected, the body is connected to the shell assembly, the limiting piece can move in the second direction relative to the body, and the protruding block protrudes towards the side wall of the bearing assembly. When the locking mechanism is in the unlocking state, the bearing assembly can move in the first direction relative to the shell assembly. When the locking mechanism is in the locking state, the protruding block limits relative movement of the bearing assembly and the shell assembly in the first direction. According to the technical scheme, the lens assembly can be prevented from shaking, and the service life of the lens assembly is prolonged.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to a lens drive motor, camera device, and electronic device. Background Technology

[0002] Mobile phones, tablets, and other electronic devices typically contain camera components. To achieve better image quality, these camera components include a drive motor that moves the lens in the focusing direction and / or in a plane perpendicular to the focusing direction. When the user uses the camera function, they can adjust the lens to a suitable position for a clearer photo. However, when the user is not using the camera function, the drive motor does not control the lens position, leaving the lens free from the motor's control. If the user shakes the electronic device, the lens will wobble, causing noticeable noises within the camera component. This can easily damage the lens and negatively impact the user experience.

[0003] In related technologies, to avoid abnormal noise, lens drive motors typically have elastic structures such as silicone installed on the surfaces of components that come into contact with the lens. These elastic structures act as a buffer when the lens shakes, reducing the volume of the noise. However, this only reduces the volume of the noise when the lens impacts; it cannot prevent the lens from shaking altogether, and the lens can still be damaged by the shaking. Utility Model Content

[0004] In view of this, embodiments of this application provide a lens drive motor, a camera device, and an electronic device, which can prevent lens components from making abnormal noises or being damaged due to shaking, and extend the service life of the lens components.

[0005] In a first aspect, embodiments of this application provide a lens drive motor, which includes a support component, a locking mechanism, and a housing component;

[0006] The support assembly is adapted to support the lens assembly. The side wall of the support assembly is provided with a moving channel and a limiting channel. The moving channel extends along a first direction. The limiting channel communicates with the moving channel and extends along a second direction. The first direction is parallel to the optical axis of the lens assembly and intersects with the second direction.

[0007] The locking mechanism includes a limiting member, which includes a connected body and a protrusion. The body is connected to the housing assembly and the limiting member is movable relative to the body in the second direction. The protrusion protrudes toward the sidewall of the support assembly.

[0008] When the locking mechanism is in the unlocked state, the protrusion is located within the moving channel, allowing the bearing assembly to move relative to the housing assembly along the first direction. When the locking mechanism is in the locked state, the protrusion is located within the limiting channel and abuts against the inner wall of the limiting channel, thereby restricting the relative movement of the bearing assembly and the housing assembly along the first direction.

[0009] Optionally, the housing assembly includes a first wall and a second wall, the first wall and the second wall being disposed opposite to each other in the first direction;

[0010] The load-bearing component includes a first surface and a second surface, the first surface facing the first wall surface and the second surface facing the second wall surface;

[0011] When the protrusion is located within the moving channel, the supporting component can move between the position where the first surface abuts against the first wall and the position where the second surface abuts against the second wall; or, the supporting component can move between the position where the first surface abuts against the first wall and the position where the inner wall of the moving channel facing the first wall abuts against the side of the protrusion facing the second surface.

[0012] Optionally, the limiting channel includes a first sidewall facing the first wall surface. When the protrusion is located within the limiting channel, both sides of the protrusion abut against the first wall surface and the first sidewall respectively, and the second surface abuts against the second wall surface.

[0013] Optionally, the limiting channel includes a second sidewall and a third sidewall disposed opposite to each other in the first direction. When the protrusion is located in the limiting channel, the two sides of the protrusion abut against the second sidewall and the third sidewall respectively, and the second surface abuts against the second wall surface.

[0014] Optionally, chamfers are provided at the corners of the protrusion and at the connection points between the limiting channel and the moving channel.

[0015] Optionally, the housing assembly is provided with a first guide groove that extends along the second direction, and the body is located within the first guide groove.

[0016] Optionally, the housing assembly is further provided with a mounting hole located at the bottom of the first guide groove;

[0017] The locking mechanism further includes a first magnet, a second magnet, a coil, and a circuit board. The circuit board is mounted on the housing assembly, and the coil is mounted on the circuit board. The coil passes through the mounting hole. The first magnet and the second magnet are arranged side by side along the second direction on the surface of the body facing the first guide groove. The N pole of the first magnet and the S pole of the second magnet both face the coil, and the S pole of the first magnet and the N pole of the second magnet both face away from the coil.

[0018] Optionally, the locking mechanism further includes a magnetic attractor mounted on the housing assembly and opposite to the first magnet and the second magnet.

[0019] Optionally, one of the body and the housing assembly is provided with at least one protrusion, and the other is provided with at least one second guide groove, the second guide groove extending in the second direction, and the protrusion being located within the corresponding second guide groove.

[0020] Optionally, the locking mechanism further includes at least one ball bearing;

[0021] The body has grooves that correspond one-to-one with the balls, and the housing assembly has at least one third guide groove. The third guide groove extends along the second direction and corresponds to at least one of the grooves. The two sides of the balls are respectively inserted into the corresponding grooves and the corresponding third guide grooves.

[0022] Optionally, the lens drive motor further includes a Hall sensor and a controller. The Hall sensor is located inside the coil and mounted on the circuit board. The controller is signal-connected to the Hall sensor.

[0023] Optionally, the lens drive motor further includes a gyroscope, which is signal-connected to the controller.

[0024] Optionally, the support assembly includes a first support member and a second support member, the first support member being located inside the second support member, the first support member being adapted to be connected to the lens assembly, and the second support member having the moving channel and the limiting channel provided on its side wall;

[0025] The first support member and the second support member can move synchronously relative to the housing assembly along the first direction. The first support member can also move relative to the second support member and the housing assembly along the second direction or a third direction. Any two of the first direction, the second direction and the third direction are perpendicular to each other.

[0026] Secondly, embodiments of this application also provide a camera device, the camera device including a lens assembly and a lens drive motor as described in any one of the first aspects, the lens assembly being connected to the carrier assembly.

[0027] Thirdly, embodiments of this application also provide an electronic device, which includes a lens drive motor as described in any one of the first aspects or a camera device as described in the second aspect.

[0028] The lens drive motor provided in this application embodiment includes a carrier component, a locking mechanism, and a housing component. The carrier component has a moving channel and a limiting channel. The moving channel extends along a first direction parallel to the optical axis of the lens component, and the limiting channel communicates with the moving channel and extends along a second direction intersecting the first direction. The locking mechanism includes a limiting member, which includes a connected body and a protrusion. When the user uses the camera function, the locking mechanism is in an unlocked state. At this time, the protrusion is located within the moving channel, and the moving channel extends along the first direction of the lens component. Therefore, the carrier component carrying the lens component is not restricted by the protrusion and can move in the first direction, thereby realizing the focusing process of the lens. When the user does not use the camera function, the locking mechanism is in a locked state. At this time, the protrusion moves along the second direction into the limiting channel and abuts against the inner wall of the limiting channel. Therefore, the carrier component is restricted by the protrusion and cannot move relative to the housing component along the first direction. That is, when the user does not use the camera function, the position of the carrier component in the first direction is relatively fixed, and the position of the lens component connected to the carrier component is also relatively fixed. Therefore, when the lens drive motor vibrates in the first direction, the lens assembly will not move freely in the first direction. This avoids the lens assembly from colliding with other surrounding components, thereby preventing abnormal noises caused by the collision between the lens assembly and surrounding components and extending the service life of the lens assembly. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the structure of a lens drive motor provided in an embodiment of this application;

[0031] Figure 2 This is an exploded view of a lens drive motor provided in an embodiment of this application;

[0032] Figure 3 yes Figure 1A cross-sectional view at point AA is provided in an embodiment of this application when the lens drive motor is in the unlocked state;

[0033] Figure 4 yes Figure 1 A cross-sectional view at point AA is provided in an embodiment of this application when the lens drive motor is in a locked state;

[0034] Figure 5 yes Figure 1 A cross-sectional view at AA of another lens drive motor in a locked state, as provided in an embodiment of this application;

[0035] Figure 6 yes Figure 1 A cross-sectional schematic diagram of a portion of the structure of a lens drive motor provided in an embodiment of this application;

[0036] Figure 7 yes Figure 1 A cross-sectional schematic diagram of a portion of the structure of a lens drive motor provided in an embodiment of this application;

[0037] Figure 8 yes Figure 1 A cross-sectional schematic diagram of a portion of the structure of a lens drive motor provided in an embodiment of this application;

[0038] Figure 9 This is a cross-sectional schematic diagram of a lens drive motor at the ball bearing position provided in an embodiment of this application.

[0039] The labels in the attached diagram are as follows:

[0040] 100, Supporting component; 110, Moving channel; 120, Limiting channel; 130, First surface; 140, Second surface; 150, First support member; 160, Second support member; 121, First sidewall; 122, Second sidewall; 123, Third sidewall;

[0041] 200 Locking mechanism; 210 Limiting component; 220 First magnet; 230 Second magnet; 240 Coil; 250 Circuit board; 260 Magnetic suction component; 270 Ball bearing; 211 Body; 212 Protrusion; 2111 Groove;

[0042] 300, Housing assembly; 310, First wall surface; 320, Second wall surface; 330, First guide groove; 340, Mounting hole; 350, Third guide groove; 360, Top shell; 370, Bottom shell;

[0043] 400. Hall effect sensor;

[0044] 500. Lens assembly.

[0045] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0046] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0047] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by those skilled in the art.

[0048] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0049] Combination Figure 1 and Figure 2 As shown, this application embodiment provides a lens drive motor, which includes a support component 100, a locking mechanism 200, and a housing component 300. It should be noted that the lens drive motor provided in this application embodiment can be, for example, an AF (Auto Focus) motor with autofocus function, or an OIS (Optical Image Stabilization) motor that combines autofocus and image stabilization functions.

[0050] The support assembly 100 is adapted to support the lens assembly 500. A moving channel 110 and a limiting channel 120 are provided on the side wall of the support assembly 100. The moving channel 110 extends along a first direction, and the limiting channel 120 communicates with the moving channel 110 and extends along a second direction. The first direction is parallel to the optical axis of the lens assembly 500, and the first direction intersects with the second direction. It should be understood that focusing can be achieved when the lens assembly 500 moves along the direction of the optical axis.

[0051] The locking mechanism 200 includes a limiting member 210, which includes a connected body 211 and a protrusion 212. The body 211 is connected to the housing assembly 300 and the limiting member 210 is movable relative to the body 211 in a second direction. The protrusion 212 protrudes toward the sidewall of the support assembly 100.

[0052] When the locking mechanism 200 is in the unlocked state, the user is using the camera function. At this time, the protrusion 212 is located within the movement channel 110, and the supporting component 100 is not restricted by the protrusion 212. Therefore, the supporting component 100 can move relative to the housing component 300 along the first direction, thereby driving the lens component 500 connected to the supporting component 100 to move synchronously. That is, the lens component 500 can move along the first direction to achieve the lens focusing process. When the locking mechanism 200 is in the locked state, the user is not using the camera function. At this time, the protrusion 212 is located within the limiting channel 120 and abuts against the inner wall of the limiting channel 120. Therefore, the protrusion 212 can restrict the relative movement of the supporting component 100 and the housing component 300 along the first direction.

[0053] As can be seen from the above, when the user is not using the camera function, the position of the support component 100 in the first direction is relatively fixed, and the position of the lens assembly 500 connected to the support component 100 is also relatively fixed. Therefore, when the lens drive motor vibrates in the first direction, the lens assembly 500 will not move freely in the first direction, thus preventing the lens assembly 500 from colliding with other surrounding components, thereby avoiding abnormal noise caused by impacts and extending the service life of the lens assembly 500.

[0054] The following is in conjunction with the appendix Figures 1 to 9 The various components and functions of the lens drive motor provided in the embodiments of this application will be described in more detail.

[0055] Combination Figure 3 and Figure 4 As shown, in some embodiments, the housing assembly 300 includes a first wall surface 310 and a second wall surface 320, which are disposed opposite to each other in a first direction. The support assembly 100 includes a first surface 130 and a second surface 140, with the first surface 130 facing the first wall surface 310 and the second surface 140 facing the second wall surface 320. When the protrusion 212 is located within the moving channel 110, the support assembly 100 can move between a position where the first surface 130 abuts against the first wall surface 310 and a position where the second surface 140 abuts against the second wall surface 320. Figure 1 Taking the placement of the various components as an example, the first wall 310 limits the farthest position of the upward movement of the bearing assembly 100, and the second wall 320 limits the farthest position of the downward movement of the bearing assembly 100.

[0056] Alternatively, the support assembly 100 can move between a position where the first surface 130 abuts against the first wall 310 and a position where the inner wall of the moving channel 110 facing the first wall 310 abuts against the side of the protrusion 212 facing the second surface 140. Figure 1 Taking the placement of the components as an example, the first wall surface 310 limits the farthest upward movement of the support component 100, and the side of the protrusion 212 facing the second surface 140 limits the farthest downward movement of the support component 100. Both of these limiting methods prevent the support component 100 from moving excessively or detaching from the housing assembly 300. In some embodiments, the housing assembly 300 includes a connected top shell 360 and a bottom shell 370. The top shell 360 includes a first wall surface 310 facing the bottom shell 370, and the bottom shell 370 includes a second wall surface 320 facing the top shell 360.

[0057] like Figure 3 As shown, in some embodiments, the limiting channel 120 includes a first sidewall 121 facing the first wall surface 310. When the protrusion 212 is located within the limiting channel 120, both sides of the protrusion 212 abut against the first wall surface 310 and the first sidewall 121, respectively, and the second surface 140 abuts against the second wall surface 320. It is understood that when the user is not using the camera function, the protrusion 212 is located within the limiting channel 120, and the supporting component 100 can be restricted by the protrusion 212 and the first wall surface 310, preventing it from moving along the first direction. Therefore, even if the user shakes the electronic device with the lens drive motor installed along the first direction, the supporting component 100 cannot be displaced along the first direction, and consequently, the lens assembly 500 connected to the supporting component 100 cannot be displaced along the first direction. This avoids the lens assembly 500 from making abnormal noises or being damaged due to shaking, improving the user experience and extending the service life of the lens assembly 500.

[0058] like Figure 5 As shown, in some embodiments, the limiting channel 120 includes a second sidewall 122 and a third sidewall 123 disposed opposite to each other in the first direction. When the protrusion 212 is located within the limiting channel 120, the two sides of the protrusion 212 abut against the second sidewall 122 and the third sidewall 123 respectively, and the second surface 140 abuts against the second wall surface 320. It can be understood that when the user does not use the camera function, the protrusion 212 is located within the limiting channel 120, and the supporting component 100 can be restricted by the two sides of the protrusion 212 and cannot move in the first direction. Therefore, even if the user shakes the electronic device with the lens drive motor installed in the first direction, the supporting component 100 cannot be displaced in the first direction, and the lens assembly 500 connected to the supporting component 100 cannot be displaced in the first direction either, avoiding abnormal noise or damage to the lens assembly 500 due to shaking. This not only improves the user experience but also extends the service life of the lens assembly 500.

[0059] Combination Figure 3 and Figure 4As shown, in some embodiments, chamfers are provided at the corners of the protrusion 212 and at the connection points between the limiting channel 120 and the moving channel 110. Therefore, when the protrusion 212 moves between the moving channel 110 and the limiting channel 120, the chamfers prevent the protrusion 212 from getting stuck, thus ensuring smooth movement. It should be noted that the periphery of the protrusion 212 has a clearance fit with the inner wall of the corresponding moving channel 110, the inner wall of the limiting channel 120, and the first wall surface 310, respectively, so that the protrusion 212 will not get stuck during movement, thus achieving smooth movement of the protrusion 212.

[0060] Combination Figure 3 and Figure 4 As shown, in some embodiments, the housing assembly 300 is provided with a first guide groove 330, which extends along a second direction, and the body 211 is located within the first guide groove 330. It should be noted that the first guide groove 330 can guide the movement of the body 211, ensuring that the limiting member 210 can move smoothly along the second direction, so that the limiting member 210 moves from the moving channel 110 to the limiting channel 120, or from the limiting channel 120 to the moving channel 110. The second direction can be perpendicular to the first direction. The body 211 can be engaged with the first guide groove 330, with a clearance fit between the sidewall of the body 211 and the groove wall of the first guide groove 330.

[0061] Combination Figures 3 to 9As shown, in some embodiments, the housing assembly 300 is further provided with a mounting hole 340, which is located at the bottom of the first guide groove 330. The locking mechanism 200 also includes a first magnet 220, a second magnet 230, a coil 240, and a circuit board 250. The circuit board 250 is mounted on the housing assembly 300, for example, the circuit board 250 can be mounted on the outer wall of the housing assembly 300. The coil 240 is mounted on the circuit board 250 and passes through the mounting hole 340. The first magnet 220 and the second magnet 230 are arranged side by side along a second direction on the surface of the body 211 facing the first guide groove 330. The N pole of the first magnet 220 and the S pole of the second magnet 230 both face the coil 240, and the S pole of the first magnet 220 and the N pole of the second magnet 230 both face away from the coil 240. Therefore, when coil 240 is energized, it ensures that coil 240 can apply a force in the same direction to the first magnet 220 and the second magnet 230 respectively. Consequently, coil 240 can drive the first magnet 220 and the second magnet 230 to move back and forth in the second direction, allowing the limiting member 210 to move back and forth in the second direction under the action of the first magnet 220 and the second magnet 230. That is, the limiting member 210 can move between the moving channel 110 and the limiting channel 120. It is understood that the direction of the coil 240 current corresponding to the direction of movement of the limiting member 210 from the moving channel 110 to the limiting channel 120 is opposite to the direction of movement of the limiting member 210 from the limiting channel 120 to the moving channel 110.

[0062] like Figure 9 As shown, in some embodiments, the locking mechanism 200 further includes a magnetic attractor 260, which is mounted on the housing assembly 300 and faces the first magnet 220 and the second magnet 230. It should be noted that the magnetic attractor 260 can be mounted on the side of the circuit board 250 away from the coil 240. Since the magnetic attractor 260 can attract the first magnet 220 and the second magnet 230 respectively, and the first magnet 220 and the second magnet 230 are mounted on the body 211, which is located within the first guide groove 330, the limiting member 210 can be prevented from disengaging from the first guide groove 330, thus improving the reliability of the lens drive motor.

[0063] In some embodiments, one of the body 211 and the housing assembly 300 is provided with at least one protrusion (not shown in the figure), and the other is provided with at least one second guide groove (not shown in the figure). The second guide groove extends in a second direction, and the protrusion is located in the corresponding second guide groove. This further ensures that the body 211 can move in the second direction, that is, ensures that the limiting member 210 can move smoothly in the second direction and prevents the limiting member 210 from deviating.

[0064] Combination Figure 8 and Figure 9As shown, in some embodiments, the locking mechanism 200 further includes at least one ball bearing 270. The body 211 has grooves 2111 corresponding to the ball bearings 270 one-to-one, and the housing assembly 300 has at least one third guide groove 350 extending along a second direction. Each third guide groove 350 corresponds to at least one groove 2111, and both sides of the ball bearing 270 are respectively engaged in the corresponding groove 2111 and the corresponding third guide groove 350. This further ensures that the body 211 can move along the second direction, that is, ensures that the limiting member 210 can move smoothly along the second direction, preventing the limiting member 210 from shifting. Simultaneously, because the ball bearing 270 has low friction, the body 211 can move more smoothly.

[0065] like Figure 8 As shown, in some embodiments, the lens drive motor further includes a Hall sensor 400 and a controller (not shown). The Hall sensor 400 is located inside the coil 240 and is mounted on the circuit board 250. The controller is signal-connected to the Hall sensor 400. It should be noted that the Hall sensor 400 can be used to detect the position information of the limiting member 210 and send the position information to the controller. In response to an exit camera function operation, and based on the position information determining that the limiting member 210 is located within the movement channel 110, the controller controls the coil 240 to be energized. This causes the coil 240 to drive the limiting member 210 to move into the limiting channel 120 via the first magnet 220 and the second magnet 230. At this time, the supporting assembly 100 cannot shake relative to the housing assembly 300 in the first direction, and therefore the lens assembly 500 connected to the supporting assembly 100 also cannot shake relative to the housing assembly 300 in the first direction. In response to the activation of the camera function and based on position information determining that the limiting member 210 is located within the limiting channel 120, the controller energizes the control coil 240. This causes the coil 240 to drive the limiting member 210 to move into the moving channel 110 via the first magnet 220 and the second magnet 230. At this time, the carrier assembly 100 can move relative to the housing assembly 300 in a first direction, enabling the lens assembly 500 connected to the carrier assembly 100 to perform the focusing process. It is understood that applications such as cameras in electronic devices can have camera functions, and this embodiment does not limit the scope of applications with camera functions.

[0066] In some embodiments, the lens drive motor further includes a gyroscope (not shown in the figure), which is signal-connected to the controller. It should be noted that the gyroscope can be used to detect the direction of movement of the lens drive motor, that is, the direction of movement of the electronic device on which the lens drive motor is installed.

[0067] In some embodiments, the support assembly 100 includes a first support member 150 and a second support member 160. The first support member 150 is located inside the second support member 160 and is adapted to be connected to the lens assembly 500. The sidewall of the second support member 160 is provided with a moving channel 110 and a limiting channel 120. It should be noted that the first support member 150 and the second support member 160 are located within the housing assembly 300.

[0068] The first support member 150 and the second support member 160 can move synchronously relative to the housing assembly 300 along a first direction. The first support member 150 can also move relative to the second support member 160 and the housing assembly 300 along a second direction or a third direction, where any two of the first, second, and third directions are perpendicular to each other. When the first support member 150 moves along the second or third direction, the position of the lens assembly 500 can be adjusted accordingly to achieve the optimal position for taking a picture. It should be noted that there are many types of driving mechanisms that can drive the first support member 150 to move relative to the second support member 160 along the second or third direction and drive the support assembly 100 to move relative to the housing assembly 300 along the first direction. For example, there are electromagnetic driving structures including ball bearings 270, electromagnets, coils 240, etc., or other mechanical driving structures. This application embodiment does not limit the specific type of driving mechanism.

[0069] The working principle of the lens drive motor is explained below: In response to the camera activation operation, and based on position information, when the controller determines that the limiting member 210 is within the limiting channel 120, the control coil 240 is energized to drive the limiting member 210 to move along the second direction to the movement channel 110. When the controller determines that the limiting member 210 is already within the movement channel 110 based on position information, the control coil 240 is de-energized. At this time, the lens assembly 500 can move along with the carrier assembly 100 in the first direction to achieve the focusing process.

[0070] When the controller responds to the exit camera function operation and determines, based on the position information, that the limiting member 210 is within the limiting channel 120, the control coil 240 is energized to drive the limiting member 210 to move along the second direction into the limiting channel 120. When the controller determines, based on the position information, that the limiting member 210 is already within the limiting channel 120, the control coil 240 is de-energized. At this time, the carrier assembly 100 cannot move relative to the housing assembly 300 in the first direction, and consequently, the lens assembly 500 cannot move along the first direction either.

[0071] When the controller responds to the gyroscope detecting a second or third direction of movement, the control coil 240 is energized to keep the limit member 210 within the limit channel 120. This prevents the lens assembly 500 from shaking in the second or third direction, thus avoiding abnormal noise or damage to the lens assembly 500 due to shaking, extending the service life of the lens assembly 500 and improving the user experience.

[0072] When the controller responds to the gyroscope detecting a shaking direction in the first direction, no operation is required. It is understood that the limit channel 120 restricts the movement of the support assembly 100 along the first direction. Therefore, when the limit member 210 is already within the limit channel 120, even with shaking along the first direction, the limit channel 120 can prevent the support assembly 100 from shaking along the first direction, thereby restricting the lens assembly 500 from shaking along the first direction.

[0073] In summary, the lens drive motor provided in this application embodiment can prevent the lens from shaking in all directions, thereby avoiding abnormal noise caused by the lens colliding with surrounding devices and improving the user experience. At the same time, since the coil 240 is energized only when necessary, meaning the coil 240 does not need to be constantly energized, energy can be saved and power consumption reduced.

[0074] Secondly, this application also provides a camera device, which includes a lens assembly 500 and a lens drive motor as described in any one of the embodiments of the first aspect of this application. The lens assembly 500 is connected to the support assembly 100. It should be noted that the lens drive motor in the camera assembly provided in this application has the same composition and function as any lens drive motor provided in the embodiments of the first aspect of this application, and therefore will not be described again here. Since the lens drive motor can prevent the lens assembly 500 from shaking, it can avoid abnormal noise or damage to the lens assembly 500, extending the service life of the lens assembly 500, which in turn extends the service life of the camera assembly and improves the user experience.

[0075] Thirdly, this application also provides an electronic device, which includes a lens drive motor as described in any one of the embodiments of the first aspect of this application or a camera device as described in the embodiments of the second aspect of this application. It should be noted that the lens drive motor in the camera assembly provided in this application has the same composition and function as any lens drive motor provided in the embodiments of the first aspect of this application, or the same composition and function as the camera assembly provided in the embodiments of the second aspect of this application; therefore, it will not be described again here. Since the lens drive motor can prevent the lens assembly 500 from shaking, it can avoid abnormal noise or damage to the lens assembly 500, extending the service life of the lens assembly 500, which in turn extends the service life of the electronic device equipped with the aforementioned camera assembly or lens drive motor, improving the user experience.

[0076] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0077] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0078] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A lens driving motor characterized by comprising: The lens driving motor comprises a bearing assembly (100), a locking mechanism (200) and a housing assembly (300); The bearing assembly (100) is adapted to bear a lens assembly (500), and a moving channel (110) and a limiting channel (120) are arranged on the side wall of the bearing assembly (100), the moving channel (110) extends along a first direction, the limiting channel (120) is communicated with the moving channel (110) and extends along a second direction, wherein the first direction is parallel to the optical axis of the lens assembly (500), and the first direction intersects the second direction; The locking mechanism (200) comprises a limiting piece (210), the limiting piece (210) comprises a body (211) and a protrusion (212) connected to each other, the body (211) is connected to the housing assembly (300), and the limiting piece (210) is movable relative to the body (211) along the second direction, and the protrusion (212) protrudes towards the side wall of the bearing assembly (100); When the locking mechanism (200) is in an unlocked state, the protrusion (212) is located in the moving channel (110), so that the bearing assembly (100) is movable relative to the housing assembly (300) along the first direction; when the locking mechanism (200) is in a locked state, the protrusion (212) is located in the limiting channel (120) and abuts against the inner wall of the channel of the limiting channel (120), so as to limit the relative movement of the bearing assembly (100) and the housing assembly (300) along the first direction.

2. The lens driving motor according to claim 1, wherein The housing assembly (300) comprises a first wall surface (310) and a second wall surface (320), and the first wall surface (310) and the second wall surface (320) are oppositely arranged along the first direction; The bearing assembly (100) comprises a first surface (130) and a second surface (140), the first surface (130) faces the first wall surface (310), and the second surface (140) faces the second wall surface (320); When the protrusion (212) is located in the moving channel (110), the bearing assembly (100) is movable between the position where the first surface (130) abuts against the first wall surface (310) and the position where the second surface (140) abuts against the second wall surface (320); or the bearing assembly (100) is movable between the position where the first surface (130) abuts against the first wall surface (310) and the position where the inner wall of the channel of the moving channel (110) facing the first wall surface (310) abuts against the side of the protrusion (212) facing the second surface (140).

3. The lens driving motor according to claim 2, wherein The limiting channel (120) comprises a first side wall (121) facing the first wall surface (310), when the protrusion (212) is located in the limiting channel (120), two sides of the protrusion (212) are respectively in abutment with the first wall surface (310) and the first side wall (121), and the second surface (140) is in abutment with the second wall surface (320).

4. The lens driving motor according to claim 2, wherein The limiting channel (120) comprises a second side wall (122) and a third side wall (123) oppositely arranged in the first direction, when the protrusion (212) is located in the limiting channel (120), two sides of the protrusion (212) are respectively in abutment with the second side wall (122) and the third side wall (123), and the second surface (140) is in abutment with the second wall surface (320).

5. The lens driving motor according to claim 1, wherein The corner of the protrusion (212) and the communication between the limiting channel (120) and the moving channel (110) are respectively provided with chamfers.

6. The lens driving motor according to claim 1, wherein The shell assembly (300) is provided with a first guide groove (330) extending along the second direction, and the body (211) is located in the first guide groove (330).

7. The lens driving motor according to claim 6, wherein The shell assembly (300) is further provided with a mounting hole (340) located at the groove bottom of the first guide groove (330). The locking mechanism (200) further comprises a first magnet (220), a second magnet (230), a coil (240) and a circuit board (250), the circuit board (250) is installed on the shell assembly (300), the coil (240) is installed on the circuit board (250), the coil (240) penetrates into the mounting hole (340), the first magnet (220) and the second magnet (230) are arranged side by side along the second direction on the surface of the body (211) facing the first guide groove (330), the N pole of the first magnet (220) and the S pole of the second magnet (230) both face the coil (240), and the S pole of the first magnet (220) and the N pole of the second magnet (230) both face away from the coil (240).

8. The lens driving motor according to claim 7, wherein The locking mechanism (200) further comprises a magnetic attraction piece (260) installed on the shell assembly (300) and opposite to the first magnet (220) and the second magnet (230).

9. The lens driving motor according to claim 7, wherein One of the body (211) and the shell assembly (300) is provided with at least one protruding piece, and the other is provided with at least one second guide groove extending along the second direction, and the protruding piece is located in the corresponding second guide groove.

10. The lens driving motor according to claim 7, wherein The locking mechanism (200) further comprises at least one ball (270). The body (211) is provided with a groove (2111) corresponding to the ball (270), the shell assembly (300) is provided with at least one third guide groove (350), the third guide groove (350) extends along the second direction, the third guide groove (350) corresponds to at least one of the grooves (2111), and the two sides of the ball (270) are clamped into the corresponding groove (2111) and the corresponding third guide groove (350) respectively.

11. The lens driving motor according to claim 7, wherein The lens driving motor further comprises a Hall sensor (400) and a controller, the Hall sensor (400) is located in the coil (240), the Hall sensor (400) is installed on the circuit board (250), and the controller is in signal connection with the Hall sensor (400).

12. The lens driving motor according to claim 11, wherein The lens driving motor further comprises a gyroscope, and the gyroscope is in signal connection with the controller.

13. The lens driving motor according to claim 1, wherein The bearing assembly (100) comprises a first bearing (150) and a second bearing (160), the first bearing (150) is located on the inner side of the second bearing (160), the first bearing (150) is adapted to be connected with the lens assembly (500), and the side wall of the second bearing (160) is provided with the moving channel (110) and the limiting channel (120). The first bearing (150) and the second bearing (160) can move synchronously along the first direction relative to the shell assembly (300), the first bearing (150) can also move along the second direction or the third direction relative to the second bearing (160) and the shell assembly (300), and any two directions of the first direction, the second direction and the third direction are perpendicular to each other.

14. A camera device, characterized by The camera device comprises a lens assembly (500) and the lens driving motor according to any one of claims 1 to 13, and the lens assembly (500) is connected with the bearing assembly (100).

15. An electronic device, comprising: The electronic device comprises the lens driving motor according to any one of claims 1 to 13 or the camera device according to claim 14.

Images