Motor, camera module and electronic device

Abstract

The application relates to the technical field of terminals, and discloses a motor, a camera module and electronic equipment. The motor comprises a mover structure, a stator structure, a first sliding shaft, a second sliding shaft and a bearing part. The bearing part is provided with a first sliding groove matched with the shape of the first sliding shaft and a second sliding groove matched with the shape of the second sliding shaft. In an assembled state, the first sliding shaft is clamped in the first sliding groove on the bearing part to limit the movement direction of the relative movement of the mover structure and the stator structure, and the second sliding shaft is clamped in the second sliding groove on the bearing part to limit the disengagement of the mover structure from the stator structure. The motor is more stable in a triangle formed by three bearing points relative to the action point of the comprehensive force in different postures, and the motor always bears on the three bearing points during movement. Therefore, the three-point bearing scheme can effectively improve the stability of the motor operation, reduce the micro-swing amplitude, and further optimize the dynamic tilt characteristics and reduce the motor operation noise.

Description

Technical Field

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

[0002] Currently, with the rapid development of the communications industry and the increasing demand for photography, more and more users are paying attention to the shooting performance of electronic devices. Based on this, camera modules in electronic devices are constantly being iterated and updated. Specifically, a camera module includes a lens, an optical sensor, and a motor. The motor drives the lens to move relative to the optical sensor to adjust the distance between the lens and the optical sensor, thereby adjusting the focal length of the camera module and completing the focusing and resetting of the camera module.

[0003] In some technical solutions, the motor uses a reed suspension system, meaning it's a reed-return motor. Due to the lag in the reed's return, this type of motor results in poor camera module posture and video judder, ultimately affecting the image capture and video recording quality. Furthermore, the reed-return motor's limited return capability prevents it from supporting long-stroke focusing, restricting the application range of the camera module. Summary of the Invention

[0004] Based on this, this application provides a motor, a camera module, and an electronic device. The motor includes a mover structure, a stator structure, a first slide shaft, a second slide shaft, and a supporting component. The first axis of the first slide shaft and the second axis of the second slide shaft are parallel. The first and second slide shafts are mounted on the stator structure, and the supporting component is mounted on the mover structure; alternatively, the supporting component is mounted on the stator structure, and the first and second slide shafts are mounted on the mover structure. The supporting component is connected to the mover structure. The supporting component has a first groove adapted to the shape of the first slide shaft and a second groove adapted to the shape of the second slide shaft. In the assembled state, the first slide shaft is engaged in the first groove on the supporting component to restrict the direction of relative movement between the mover structure and the stator structure, and the second slide shaft is engaged in the second groove on the supporting component to prevent the mover structure from detaching from the stator structure.

[0005] The aforementioned motor utilizes the principle of three points being coplanar, ensuring that the triangle formed is always unique. In contrast, the four-point bearing scheme (or schemes with more than four bearings) cannot guarantee that all bearing points will always be in the same plane; the triangle formed by the four-point bearing can be any of several triangles formed by any three vertices. Therefore, the motor with the three-point bearing scheme experiences more stable force. Based on this, the triangle formed by the three-point bearing is more stable relative to the points of application of the combined forces under different postures, ensuring that the motor always grips the three bearing points during movement. Therefore, the three-point bearing scheme effectively improves motor stability, reduces micro-oscillation amplitude, thereby optimizing dynamic tilting characteristics and reducing motor operating noise.

[0006] The first aspect of this application provides a motor. The motor includes a mover structure, a stator structure, a first slide shaft, a second slide shaft, and a supporting member. The first axis of the first slide shaft is parallel to the second axis of the second slide shaft. The supporting member is connected to the mover structure, and the first and second slide shafts are connected to the stator structure; alternatively, the supporting member is connected to the stator structure, and the first and second slide shafts are connected to the mover structure. The supporting member has two first support portions adapted to the first slide shaft, and the first slide shaft is engaged within the two first support portions to limit the relative movement direction of the mover structure and the stator structure. The supporting member also has a second support portion adapted to the second slide shaft, and the second slide shaft is engaged within the second support portion of the supporting member to prevent the mover structure from disengaging from the stator structure.

[0007] In this context, "restricting the movement structure from detaching from the stator structure" means restricting the relative separation of the movement structure and the stator structure, i.e., maintaining their relative unity. For example, the movement structure supports the stator structure through a structure. Another example is that the stator structure supports the movement structure through a structure. Yet another example is that the movement structure is secured to the stator structure by a structure. And yet another example is that the stator structure is secured to the movement structure by a structure. It is understood that the above connection methods between the movement and stator structures are only some examples; any other structure that can prevent the relative separation of the movement and stator structures is also within the scope of protection of this application, and this application does not specifically limit it in this regard.

[0008] For example, the supporting component is connected to the moving part structure, and the first and second sliding shafts are mounted on the stator structure. The supporting component has a first sliding groove adapted to the shape of the first sliding shaft and a second sliding groove adapted to the shape of the second sliding shaft. The first sliding groove includes a first groove body and first support portions formed at intervals within the first groove body. In the assembled state, the first sliding shaft is engaged in the first sliding groove on the supporting component, so that the circumferential surface of the first sliding shaft contacts the support surface of the first support portion, thereby restricting the relative movement direction of the moving part structure and the stator structure. The second sliding groove includes a second groove body and a second support portion formed within the second groove body. In the assembled state, the second sliding shaft is engaged in the second sliding groove on the supporting component, so that the circumferential surface of the second sliding shaft contacts the support surface of the second support portion. This combination of the first sliding shaft and the first sliding groove restricts the moving part structure from detaching from the stator structure, preventing the moving part structure from rotating relative to the stator structure around a certain axis.

[0009] The aforementioned motor utilizes the principle of three points being coplanar, ensuring that the triangle formed is always unique. In contrast, the four-point bearing scheme (or schemes with more than four bearings) cannot guarantee that all bearing points will always be in the same plane; the triangle formed by the four-point bearing can be any of several triangles formed by any three vertices. Therefore, the motor with the three-point bearing scheme experiences more stable force. Based on this, the triangle formed by the three-point bearing is more stable relative to the points of application of the combined forces under different postures, ensuring that the motor always grips the three bearing points during movement. Therefore, the three-point bearing scheme effectively improves motor stability, reduces micro-oscillation amplitude, thereby optimizing dynamic tilting characteristics and reducing motor operating noise.

[0010] In some possible implementations of the first aspect mentioned above, the motor has a V-shaped groove on the first support portion that matches the shape of the first slide shaft, and a U-shaped groove on the second support portion that matches the shape of the second slide shaft.

[0011] In this application, the first support portion has a V-shaped groove that matches the shape of the first sliding shaft, and the first support portion engages with the first sliding shaft through the V-shaped groove. The second support portion has a U-shaped groove that matches the shape of the second sliding shaft, and the second support portion engages with the second sliding shaft through the U-shaped groove. It is understood that the outlines of the grooves on the first and second support portions described above are only partial examples. Any other grooves on the first and second support portions that can achieve the corresponding functions are also within the scope of protection of this application, and this application does not specifically limit them.

[0012] In the aforementioned motor, the first support portion in the first slide groove and the second support portion in the second slide groove have simple and reasonable structures, and can ensure the stable connection between the first support portion and the first slide groove, as well as the stable connection between the second support portion and the second slide groove, thereby improving the structural stability of the motor.

[0013] In some possible implementations of the first aspect mentioned above, the point of application of the combined force that the motor needs to overcome during operation is located within the triangular area formed by the two first supports and one second support.

[0014] Among them, the combined force refers to the force that needs to be overcome when the drive structure in the motor drives the mover structure to move relative to the stator structure.

[0015] In some possible implementations, the triangular region can be determined by integrating each first support into a first support point and the second support into a second support point, and then generating the triangular region based on the integrated two first support points and one second support point.

[0016] In some implementations of this application, two first support points and one second support point are used as three vertices to generate a triangular region.

[0017] In some alternative implementations of this application, a projection plane is determined, and the two first support points and one second support point are projected onto the projection plane to obtain three projection points. These three projection points are then used as three vertices to generate a triangular region. The projection plane can be a plane containing the common axis of the first sliding axis and the second axis of the second sliding axis, or it can be a plane parallel to the common axis of the first sliding axis and the second axis of the second sliding axis. The projection of the two first support points and one second support point onto the projection plane can be an orthographic projection of the two first support points and one second support point onto the projection plane; this application does not specifically limit this.

[0018] In addition, the triangular region can also be determined by using the two first support parts and the second support part as a first support point and the center or center of gravity of the second support part as a second support point, and then the triangular region can be generated based on the two first support points and the second support point.

[0019] It is understood that the above-described method of determining the triangular region by using two first support parts and one second support part is only a partial example. Other methods of determining the triangular region are also within the scope of protection of this application, and this application does not make specific limitations on them.

[0020] In some implementations of this application, the point of application of the combined force that the motor needs to overcome during operation can be the actual position of the combined force acting on the motor. In other alternative implementations of this application, the point of application of the combined force that the motor needs to overcome during operation can be the projected position of the actual position of the combined force acting on the motor within the projection plane.

[0021] The motor described above has a simple overall structure, distributes force evenly and reasonably, extends the service life of each component in the motor, and improves economic efficiency.

[0022] In some possible implementations of the first aspect described above, the combined force in the motor is the resultant force of the gravity of the mover structure and the magnetic attraction between the mover structure and the stator structure. It is understood that the above-described combined force is only a partial implementation of the embodiments of this application, and the combined force can also manifest in other forms, which this application does not specifically limit.

[0023] In some possible implementations of the first aspect mentioned above, in the motor, the point of application of the combined force coincides with the center of the triangular region formed by the two first supports and one second support.

[0024] The aforementioned motor further optimizes the stress distribution, extends the service life of its components, and improves economic efficiency.

[0025] In some possible implementations, the distance between any one of the first support parts and the second support part is equal. That is, the two first support parts are symmetrically distributed on the first groove with respect to the second support part.

[0026] In some possible implementations of the first aspect described above, the material of the supporting component in the motor is any one of stainless steel, liquid crystal polymer, polycarbonate, and polyamide. The liquid crystal polymer material type can be CM529b.

[0027] In some possible implementations, this application does not specifically limit the dimensions of the first support member and the second support member along the first axis (or the second axis). For example, in the motor described above, the dimension of the first support member along the first axis ranges from 0.8 mm to 1 mm. As another example, in the motor described above, the dimension of the second support member along the second axis ranges from 0.7 mm to 0.9 mm.

[0028] A second aspect of this application provides a motor. The motor includes a mover structure, a stator structure, a first slide shaft, a second slide shaft, and a supporting component. The supporting component includes a first supporting component and a second supporting component. The second axis of the second slide shaft is parallel to the first axis of the first slide shaft. The first supporting component is connected to the mover structure, the first slide shaft is connected to the stator structure, the second supporting component is connected to the stator structure, and the second slide shaft is connected to the mover structure; alternatively, the first supporting component is connected to the stator structure, the first slide shaft is connected to the mover structure, the second supporting component is connected to the mover structure, and the second slide shaft is connected to the stator structure. The first supporting component has two first support portions adapted to the first slide shaft, and the first slide shaft is engaged within the two first support portions to limit the relative movement direction of the mover structure and the stator structure. The second supporting component has one second support portion adapted to the second slide shaft, and the second slide shaft is engaged within the second support portion of the supporting component to prevent the mover structure from disengaging from the stator structure.

[0029] In some possible implementations of the second aspect mentioned above, the motor has a V-shaped groove on the first support portion that matches the shape of the first sliding shaft, and a U-shaped groove on the second support portion that matches the shape of the second sliding shaft.

[0030] A third aspect of this application provides a camera module. The camera module includes a lens, an optical sensing component, and any one of the following motors described in the first aspect, its possible implementations, the second aspect, and its possible implementations: the lens is connected to the moving part of the motor, and the optical sensing component is connected to the stator of the motor; or, the lens is connected to the stator of the motor, and the optical sensing component is connected to the moving part of the motor.

[0031] A fourth aspect of this application provides an electronic device. This electronic device includes any one of the camera modules described in the second aspect and its possible implementations. Attached Figure Description

[0032] Figure 1(a) shows a perspective view of a mobile phone 1 according to an embodiment of the present application;

[0033] Figure 1(b) shows an exploded view of a mobile phone 1 according to an embodiment of this application;

[0034] Figure 2 An exploded view of a motor 30' is shown according to an embodiment of this application;

[0035] Figure 3 According to an embodiment of this application, a perspective view of a support component 500' is shown;

[0036] Figure 4(a) shows Figure 3A schematic diagram of the middle motor 30' and the middle support component 500' from a bottom-view perspective;

[0037] Figure 4(b) shows Figure 3 A schematic diagram of the middle motor 30', the middle support component 500', the first slide shaft 300, and the second slide shaft 400 after assembly, viewed from a bottom angle, wherein the first slide shaft 300 and the second slide shaft 400 are represented by dashed lines;

[0038] Figure 5 Figure 4(b) shows a schematic diagram of the distribution of the bearing points between the bearing component 500' and the first sliding shaft 300 and the second sliding shaft 400;

[0039] Figure 6 An exploded view of a motor 30 is shown according to an embodiment of this application;

[0040] Figure 7 According to an embodiment of this application, a perspective view of a support component 500 is shown;

[0041] Figure 8(a) shows Figure 7 A schematic diagram of the supporting component 500 in the middle motor 30 from a bottom-view perspective;

[0042] Figure 8(b) shows Figure 7 A schematic diagram of the supporting component 500, the first sliding shaft 300 and the second sliding shaft 400 in the motor 30 after assembly, viewed from a bottom angle, wherein the first sliding shaft 300 and the second sliding shaft 400 are represented by dashed lines.

[0043] Figure 9 Figure 8(b) shows a schematic diagram of the distribution of the bearing points between the bearing component 500 and the first sliding shaft 300 and the second sliding shaft 400.

[0044] Figure 10(a) shows the simulation results of a three-point bearing support scheme under asymmetric magnetic force in the first direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0045] Figure 10(b) shows the simulation results of a three-point bearing support scheme under asymmetric magnetic force in the second direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0046] Figure 10(c) shows a simulation result diagram of a four-point bearing support scheme under asymmetric magnetic force in the first direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0047] Figure 10(d) shows the simulation results of a four-point bearing support scheme under asymmetric magnetic force in the second direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0048] Figure 10(e) shows a simulation result of a three-point bearing support scheme under symmetrical magnetic force in the first direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0049] Figure 10(f) shows the simulation results of a three-point bearing support scheme under symmetrical magnetic force in the second direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0050] Figure 10(g) shows the simulation results of a four-point bearing support scheme under symmetrical magnetic force in the first direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0051] Figure 10(h) shows the simulation results of a four-point bearing support scheme under symmetrical magnetic force in the second direction according to an embodiment of this application. The horizontal axis represents time in ms and the vertical axis represents the swing amount in μm.

[0052] Figure 11 According to an embodiment of this application, a perspective view of a motor 30 is shown;

[0053] Figure 12 An exploded view of a motor 30 is shown according to an embodiment of this application;

[0054] Figure 13 According to an embodiment of this application, a motor 30 is shown along... Figure 11 A sectional view of section AA in the middle;

[0055] Figure 14(a) illustrates a motor 30 along an embodiment of this application. Figure 11 A sectional view of section BB in the middle;

[0056] Figure 14(b) illustrates a motor 30 along an embodiment of this application. Figure 11 A sectional view of the CC section;

[0057] Figure 15(a) illustrates an embodiment according to this application. Figure 13 A magnified view of a portion of region S1;

[0058] Figure 15(b) illustrates an embodiment according to this application. Figure 13 A magnified view of a portion of region S2 in the middle;

[0059] Figure 16(a) shows a flowchart of a design scheme for a support component 500 according to an embodiment of this application;

[0060] Figure 16(b) shows a flowchart of a processing scheme for a bearing component 500 according to an embodiment of this application;

[0061] Figure 17(a) shows the point of application O of a combined force according to an embodiment of this application;

[0062] Figure 17(b) shows a schematic diagram of a design scheme for a first support portion 512 according to an embodiment of this application;

[0063] Figure 17(c) shows a schematic diagram of a design scheme for a second support portion 522 according to an embodiment of this application;

[0064] Figure 17(d) shows a schematic diagram of a design scheme for a support component 500 according to an embodiment of this application.

[0065] In the attached drawings, the reference numerals are as follows: 1-Mobile phone; 11-Screen; 12-Mid-frame; 13-Back cover; 14-Camera module; 10-Lens; 20-Optical sensing component; 30-Motor; 100-Motor structure; 200-Stator structure; 210-First mounting part; 211-First mounting hole; 212-Second mounting hole; 220-Second mounting part; 221-Third mounting hole; 222-Fourth mounting hole; 300-First sliding shaft; 310-First end of first sliding shaft; 320-Second end of first sliding shaft; 400-Second sliding shaft; 410-First end of second sliding shaft; 420-Second end of second sliding shaft; 500-Supporting component; 510-First sliding groove; 511-First groove body; 512-First support part; 520-Second sliding groove; 521-Second groove body; 522-Second support part. Detailed Implementation

[0066] To make the objectives, 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.

[0067] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.

[0068] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0069] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. "Multiple" refers to at least two.

[0070] This application provides an electronic device, which can be any device with a shooting module. For example, the electronic device includes, but is not limited to, any one of a mobile phone, tablet computer, laptop computer, wearable device, head-mounted display, video recording device, etc. For ease of description and understanding, a mobile phone (1) will be used as an example for detailed description below.

[0071] Figure 1(a) shows a perspective view of a mobile phone 1 according to an embodiment of this application. Figure 1(b) shows an exploded view of a mobile phone 1 according to an embodiment of this application. For ease of description and understanding below, the various directions of the mobile phone 1 will be defined below in conjunction with Figures 1(a) and 1(b). As shown in Figures 1(a) and 1(b), the width direction of the mobile phone 1 is the X-axis direction, which can be the width direction of the screen 11 (mentioned below) or the direction in which the user holds the phone; the length direction of the mobile phone 1 is the Y-axis direction, which can be the length direction of the screen 11 or the direction perpendicular to the direction in which the user holds the phone within the plane containing the screen 11; the thickness direction of the mobile phone 1 is the Z-axis direction, which is perpendicular to the light-emitting surface of the mobile phone 1, where the light-emitting surface is the surface in the mobile phone 1 used for emitting light. The X-axis, Y-axis, and Z-axis directions intersect each other.

[0072] In some implementations of this application, the X-axis, Y-axis, and Z-axis directions are mutually perpendicular. It is understood that this perpendicularity is not absolute; approximate perpendicularity due to manufacturing and assembly errors (e.g., an angle of 89.9° between two structural features) is also within the scope of mutual perpendicularity in this application. Similarly, the parallelism mentioned later is not absolute; approximate parallelism due to manufacturing and assembly errors (e.g., an angle of 0.1° between two structural features) is also within the scope of mutual parallelism in this application. This application does not impose specific limitations on these aspects, and the limitations on mutual perpendicularity and parallelism will not be repeated later.

[0073] Referring again to Figures 1(a) and 1(b), in some embodiments of this application, the mobile phone 1 includes a screen 11, a mid-frame 12, a back cover 13, and a camera module 14. The screen 11, mid-frame 12, and back cover 13 are arranged sequentially along the negative Z-axis, and together they form a mounting cavity (not shown). The camera module 14 is located within the mounting cavity and is mounted on at least one of the screen 11, mid-frame 12, and back cover 13. It is understood that the above implementation is only a partial example showing the specific structure of the mobile phone 1, and other mobile phones 1 including a camera module 14 are also within the protection scope of this application, and are not specifically limited thereto.

[0074] After describing the specific structure of mobile phone 1, the specific structure of camera module 14 in mobile phone 1 will be described in detail below with reference to the accompanying drawings. Referring again to Figure 1(b), in some embodiments of this application, camera module 14 includes lens 10, optical sensing component 20, and motor 30. Motor 30 includes a drive end (which may be mover structure 100 hereinafter referred to as the mover structure 100) and an outer housing (which may be stator structure 200 hereinafter referred to as the stator structure 200). Lens 10 is connected to drive end of motor 30, and optical sensing component 20 is connected to outer housing of motor 30. After receiving a control signal, motor 30 drives lens 10 to move relative to optical sensing component 20 on outer housing of motor 30 through drive end, adjusting the distance between lens 10 and optical sensing component 20, thereby achieving focusing or resetting of camera module 14.

[0075] In some embodiments of this application, the camera module 14 further includes a base (not shown) and a control component (not shown). The outer housing of the motor 30 is mounted on the base. The control component is signal-connected to the motor 30 and is used to receive control signals from the circuit components of the mobile phone 1 and send the control signals to the motor 30. Specifically, when the control component receives a focus signal or a reset signal, it converts the focus signal or reset signal into a control signal and sends the control signal to the motor 30. The motor 30, based on the received control signal, drives the lens 10 to move via its drive end, thereby adjusting the distance between the lens 10 and the optical sensing component 20, and thus achieving focusing or resetting of the camera module 14.

[0076] To address the issues raised in the background art, such as poor camera module posture, video shakiness, and consequently, the inability to support long-stroke focusing, this application provides a motor 30'. In this motor 30', a first sliding shaft engages with at least two first support components in a first sliding groove, and a second sliding shaft engages with at least two second support components in a second sliding groove, thereby guiding the movement structure 100 and the stator structure 200 within the motor 30'.

[0077] Figure 2 An exploded view of a motor 30' is shown according to an embodiment of this application. (As...) Figure 2 As shown, in some embodiments of this application, the motor 30' includes a mover structure 100, a stator structure 200, a first slide shaft 300, a second slide shaft 400, and a support member 500'. The stator structure 200 has a first mounting portion 210 and a second mounting portion 220. The first axis l1 of the first slide shaft 300 and the second axis l2 of the second slide shaft 400 are parallel, and the first slide shaft 300 and the second slide shaft 400 are mounted on the stator structure 200. For example, the first slide shaft 300 is mounted on the stator structure 200 via the first mounting portion 210, and the second slide shaft 400 is mounted on the stator structure 200 via the second mounting portion 220. The support member 500' is connected to the mover structure 100. The support member 500' has a first groove 510' adapted to the shape of the first slide shaft 300 and a second groove 520' adapted to the shape of the second slide shaft 400. In the assembled state, the first sliding shaft 300 is engaged in the first sliding groove 510' on the supporting component 500', and the second sliding shaft 400 is engaged in the second sliding groove 520' on the supporting component 500'. In this application, the axis of the shaft refers to the rotation center line of the shaft, and this will not be repeated below.

[0078] The supporting component 500' in some embodiments of this application will now be described in further detail with reference to the accompanying drawings. Figure 3According to an embodiment of this application, a perspective view of a support component 500' is shown. Figure 3 As shown, in some embodiments of this application, the supporting component 500' is provided with a first sliding groove 510' and a second sliding groove 520'. The first sliding groove 510' includes a first groove body 511' and at least two spaced-apart first support portions 512' formed on the first groove body 511'. The second sliding groove 520' includes a second groove body 521' and at least two spaced-apart second support portions 522' formed on the second groove body 521'. For ease of description and understanding, the following description will continue with the example of two first support portions 512' on the first groove body 511' and two second support portions 522' on the second groove body 521'.

[0079] Figure 4(a) shows Figure 3 A schematic diagram of the middle motor 30' and its supporting component 500' from a bottom-view perspective. Figure 4(b) shows... Figure 3 A schematic diagram of the assembly of the supporting component 500', the first sliding shaft 300, and the second sliding shaft 400 in the motor 30', viewed from a bottom angle, where the first sliding shaft 300 and the second sliding shaft 400 are represented by dashed lines. Referring to Figures 4(a) and 4(b), two spaced-apart first support portions 512' are respectively engaged with the first sliding shaft 300, restricting the direction of relative motion between the mover structure 100 and the stator structure 200 through the circumferential surface of the first sliding shaft 300 and the support surface of each first support portion 512'. Two spaced-apart second support portions 522' are respectively engaged with the second sliding shaft 400, restricting the mover structure 100 from detaching from the stator structure 200 through the circumferential surface of the second sliding shaft 400 and the support surface of the second support portion 522', in conjunction with the circumferential surface of the first sliding shaft 300 and the support surface of the first support portion 512'.

[0080] Figure 5 Figure 4(b) shows a schematic diagram of the distribution of abutment points between the supporting component 500' and the first sliding shaft 300 and the second sliding shaft 400. In this embodiment, the abutment point refers to the distribution position of the first support portion 512' and the second support portion 522' on the supporting component 500'. The abutment point can also be understood as the area where the first sliding shaft 300 and the second sliding shaft 400 contact the supporting component 500' when the first sliding shaft 300 and the second sliding shaft 400 are installed on the supporting component 500'. Figure 5 In the middle, the bearing point formed by the two first support parts 512' and the first sliding shaft 300 can be characterized as Figure 5 Points A and B in the diagram. The bearing points formed by the two second support parts 522' and the second sliding shaft 400 can be characterized as... Figure 5 Points C and D in the diagram. Where S in the diagram... 511 'Represents the area where the first tank 511' is located, S in the figure521 'This represents the area where the second tank 521' is located. For example... Figure 5 As shown, points A, B, C, and D are located at the four vertices of the quadrilateral.

[0081] In the above embodiments, the motor 30' has advantages such as small posture difference, small dynamic tilt, good resistance to video jitter, and long stroke. However, the motor 30' requires at least a four-point bearing support scheme of "two first support parts 512' + two second support parts 522'". On the one hand, due to the molding dimensional tolerances of the first support parts 512' and the second support parts 522', it is difficult for the four bearing support points to be coplanar, which leads to instability in the bearing position (i.e., the support point) of the moving part structure 100 during its movement relative to the stator structure 200, resulting in back-and-forth bouncing and large dynamic tilt changes, thus deteriorating the image quality. On the other hand, due to the unstable operation of the motor 30', the moving part structure 100 in the motor 30' will experience slight oscillations during movement, causing the moving part structure 100 to continuously impact the first sliding shaft 300 and / or the second sliding shaft 400 under closed-loop control, generating operating noise and affecting video recording and user experience.

[0082] Based on this, in order to solve the technical problems of dynamic tilting and operating noise of the motor 30' during closed-loop operation, this application provides a motor 30. In this motor 30, the guide between the moving part structure 100 and the stator structure 200 is completed by the cooperation of a first sliding shaft with at least two first support members in a first sliding groove, and a second sliding shaft with one second support member in a second sliding groove.

[0083] Figure 6 An exploded view of a motor 30 is shown according to an embodiment of this application. (As...) Figure 6As shown, in some embodiments of this application, the motor 30 includes a mover structure 100, a stator structure 200, a first sliding shaft 300, a second sliding shaft 400, and a supporting member 500. The stator structure 200 has a first mounting portion 210 and a second mounting portion 220. The first axis l1 of the first sliding shaft 300 and the second axis l2 of the second sliding shaft 400 are parallel, and the first and second sliding shafts 300 and 400 are mounted on the stator structure 200. For example, the first sliding shaft 300 is mounted on the stator structure 200 via the first mounting portion 210, and the second sliding shaft 400 is mounted on the stator structure 200 via the second mounting portion 220. The supporting member 500 is connected to the mover structure 100. The supporting member 500 has a first groove 510 adapted to the shape of the first sliding shaft 300 and a second groove 520 adapted to the shape of the second sliding shaft 400. In the assembled state, the first sliding shaft 300 is engaged in the first sliding groove 510 on the supporting component 500, and the second sliding shaft 400 is engaged in the second sliding groove 520 on the supporting component 500.

[0084] The supporting component 500 in some embodiments of this application will now be described in further detail with reference to the accompanying drawings. Figure 7 According to an embodiment of this application, a perspective view of a support component 500 is shown. Figure 7 As shown, in some embodiments of this application, the supporting component 500 is provided with a first sliding groove 510 and a second sliding groove 520. The first sliding groove 510 includes a first groove body 511 and at least two spaced-apart first support portions 512 formed on the first groove body 511. The second sliding groove 520 includes a second groove body 521 and a second support portion 522 formed on the second groove body 521. For ease of description and understanding, the following description will continue with the example of two first support portions 512 on the first groove body 511.

[0085] Figure 8(a) shows Figure 7 A schematic diagram of the support component 500 in the motor 30 from a bottom-view perspective. Figure 8(b) shows... Figure 7A schematic diagram of the supporting component 500, the first sliding shaft 300, and the second sliding shaft 400 in the motor 30 after assembly, viewed from a bottom angle, wherein the first sliding shaft 300 and the second sliding shaft 400 are represented by dashed lines. Referring to Figures 8(a) and 8(b), two spaced-apart first support portions 512 are respectively engaged with the first sliding shaft 300, restricting the direction of relative motion between the mover structure 100 and the stator structure 200 through the circumferential surface of the first sliding shaft 300 and the support surface of each first support portion 512. The second support portion 522 is engaged with the second sliding shaft 400, and through the circumferential surface of the second sliding shaft 400 and the support surface of the second support portion 522', in conjunction with the circumferential surface of the first sliding shaft 300 and the support surface of the first support portion 512, restricting the mover structure 100 from detaching from the stator structure 200.

[0086] Figure 9 Figure 8(b) shows a schematic diagram of the distribution of abutment points between the supporting component 500 and the first sliding shaft 300 and the second sliding shaft 400. In this embodiment, the abutment point refers to the distribution position of the first support portion 512 and the second support portion 522 on the supporting component 500. The abutment point can also be understood as the area where the first sliding shaft 300 and the second sliding shaft 400 contact the supporting component 500 when the first sliding shaft 300 and the second sliding shaft 400 are installed on the supporting component 500. Figure 9 In the middle, the bearing point formed by the two first support parts 512 and the first sliding shaft 300 can be characterized as Figure 9 Points A and B in the diagram. The bearing point formed by the second support 522 and the second sliding shaft 400 can be characterized as... Figure 9 Point E in the diagram. Where S is located in the diagram. 511 This represents the area where the first tank 511 is located, S in the figure. 521 This represents the region where the second tank 521 is located. For example... Figure 9 As shown, points A, B, and E are located at the three vertices of the triangle.

[0087] In the above embodiments, even if the mold and forming conditions prevent all bearing points from always being in the same plane, the three-point bearing utilizes the principle of three points being coplanar, ensuring that the triangle formed is always △ABE. Compared to the four-point bearing scheme (or a scheme with more than four bearing points), where the mold and forming conditions prevent all bearing points from always being in the same plane, the triangle formed by the four-point bearing can be any one of △ABC, △ABD, △ACD, and △BCD. Therefore, the force distribution on the motor 30 in the three-point bearing scheme is more stable.

[0088] Based on this, compared to the points of application of the combined forces under different postures, the triangle formed by the three-point bearing is more stable, ensuring that the motor always holds onto the three bearing points during operation. Therefore, the three-point bearing solution can effectively improve the stability of motor operation, reduce micro-oscillation amplitude, thereby optimizing dynamic tilting characteristics and reducing motor operating noise.

[0089] Experiments show that the dynamic tilt of motor 30 during its full stroke is less than 3 minutes. The operating noise of motor 30 meets the testing standards. Therefore, the aforementioned motor 30 can be applied to camera modules in electronic devices such as mobile phones and tablets, and is particularly suitable for applications where the optical system design has high requirements for the dynamic tilt characteristics of the motor's movement, or where users have high noise control requirements.

[0090] The advantages of the three-point bearing motor 30 will be further described in detail below with reference to simulation results. Figure 10(a) shows the simulation results of a three-point bearing scheme in the first direction under asymmetrical magnetic force, according to an embodiment of this application. Figure 10(b) shows the simulation results of a three-point bearing scheme in the second direction under asymmetrical magnetic force, according to an embodiment of this application. Figure 10(c) shows the simulation results of a four-point bearing scheme in the first direction under asymmetrical magnetic force, according to an embodiment of this application. Figure 10(d) shows the simulation results of a four-point bearing scheme in the second direction under asymmetrical magnetic force, according to an embodiment of this application. Figure 10(e) shows the simulation results of a three-point bearing scheme in the first direction under symmetrical magnetic force, according to an embodiment of this application. Figure 10(f) shows the simulation results of a three-point bearing scheme in the second direction under symmetrical magnetic force, according to an embodiment of this application. Figure 10(g) shows the simulation results of a four-point bearing scheme in the first direction under symmetrical magnetic force, according to an embodiment of this application. Figure 10(h) shows a simulation result of a four-point bearing support scheme under symmetrical magnetic force in the second direction, according to an embodiment of this application. Figures 10(a) to 10(h) In the diagram, the horizontal axis represents time in milliseconds (ms), and the vertical axis represents the amount of oscillation in micrometers (μm). Figures 10(a) to 10(h) The data represent the variation of the oscillation of the first slide shaft 300 and the second slide shaft 400 in the motor 30 over 12 oscillation cycles.

[0091] Asymmetric magnetic force refers to an asymmetric force exerted by the drive structure on the mover structure 100 in the motor 30 (at least one of the magnitude, direction, and point of application of the force is asymmetric). Symmetric magnetic force refers to a symmetrical force exerted by the drive structure on the mover structure 100 in the motor 30 (the magnitude, direction, and point of application of the force are all symmetrical). For example, the first direction refers to the left-right swing direction, that is, the swing direction along the X-axis, and the second direction refers to the up-down swing direction, that is, the swing direction along the Z-axis. Table 1 shows the results based on... Figures 10(a) to 10(h) A comparison of simulation results for three-point bearing contact and four-point bearing contact.

[0092] Table 1 Comparison of simulation results for three-point bearing contact and four-point bearing contact

[0093]

[0094] In Table 1, Max represents the maximum swing of the first slide shaft 300 and the second slide shaft 400 in the motor 30, Min represents the minimum swing of the first slide shaft 300 and the second slide shaft 400 in the motor 30, and Range represents the swing range of the first slide shaft 300 and the second slide shaft 400 in the motor 30, which can also be considered as the vibration amplitude of the first slide shaft 300 and the second slide shaft 400.

[0095] Combination Figures 10(a) to 10(h) As can be seen from Table 1, under the same conditions, the vibration amplitude of the three-point bearing system is smaller than that of the four-point bearing system. In addition, under the same conditions, symmetrical and asymmetrical magnetic forces also have a certain influence on the vibration amplitude, but the influence varies in different directions, which will not be described in detail here. Based on this, simulation comparisons also show that the three-point bearing system produces less vibration amplitude than the four-point bearing system.

[0096] The specific structure of the motor 30 described above will be further described in detail below with reference to the accompanying drawings.

[0097] Figure 11 According to an embodiment of this application, a perspective view of a motor 30 is shown. Figure 12 An exploded view of a motor 30 is shown according to an embodiment of this application. Figure 13 According to an embodiment of this application, a motor 30 is shown along... Figure 11 A cross-sectional view of section AA. Figure 14(a) shows a motor 30 along a path according to an embodiment of this application. Figure 11 A cross-sectional view of section BB in the middle. Figure 14(b) shows a motor 30 along a section according to an embodiment of this application. Figure 11 A sectional view of section CC.

[0098] Combination Figures 11 to 14(b)It is not difficult to see that in some embodiments of this application, the motor 30 includes a mover structure 100, a stator structure 200, a first slide shaft 300, a second slide shaft 400, and a supporting member 500. The first axis l1 of the first slide shaft 300 is parallel to the second axis l2 of the second slide shaft 400. The supporting member 500 is connected to the mover structure 100, and the first slide shaft 300 and the second slide shaft 400 are connected to the stator structure 200; alternatively, the supporting member 500 is connected to the stator structure 200, and the first slide shaft 300 and the second slide shaft 400 are connected to the mover structure 100.

[0099] The supporting component 500 is provided with two first support portions 512 adapted to the first sliding shaft 300. The first sliding shaft 300 is engaged within the two first support portions 512 to limit the relative movement direction of the mover structure 100 and the stator structure 200. The supporting component 500 is also provided with a second support portion 522 adapted to the second sliding shaft 400. The second sliding shaft 400 is engaged within the second support portion 522 on the supporting component 500 to limit the mover structure 100 from disengaging from the stator structure 200.

[0100] In some embodiments of this application, the supporting component 500 is connected to the moving part structure 100, and the first sliding shaft 300 and the second sliding shaft 400 are mounted on the stator structure 200. The supporting component 500 has a first sliding groove 510 adapted to the shape of the first sliding shaft 300 and a second sliding groove 520 adapted to the shape of the second sliding shaft 400. The first sliding groove 510 includes a first groove body 511 and first support portions 512 formed at intervals within the first groove body 511. In the assembled state, the first sliding shaft 300 is engaged in the first sliding groove 510 on the supporting component 500, so that the circumferential surface of the first sliding shaft 300 contacts the support surface of the first support portion 512, thereby restricting the relative movement direction of the moving part structure 100 and the stator structure 200. The second slide groove 520 includes a second groove body 521 and a second support portion 522 formed in the second groove body 521. In the assembled state, the second slide shaft 400 is engaged in the second slide groove 520 on the bearing component 500, so that the circumferential surface of the second slide shaft 400 contacts the support surface of the second support portion 522, thereby combining the first slide shaft 300 and the first slide groove 510 to restrict the moving part structure 100 from disengaging from the stator structure 200 and prevent the moving part structure 100 from rotating relative to the stator structure 200 around a certain axis.

[0101] In this application, "a structure restricting the movement structure 100 from detaching from the stator structure 200" means that a structure is used to restrict the relative separation of the movement structure 100 and the stator structure 200, that is, to maintain the relative separation of the movement structure and the stator structure. For example, the movement structure 100 supports the stator structure 200 through a structure. Another example is that the stator structure 200 supports the movement structure 100 through a structure. Yet another example is that the movement structure 100 is secured to the stator structure 200 through a structure. Yet another example is that the stator structure 200 is secured to the movement structure 100 through a structure. It is understood that the above-mentioned structures and the connection methods of the movement structure 100 and the stator structure 200 are only some examples. Any other structure that can prevent the relative separation of the movement structure 100 and the stator structure 200 is also within the scope of protection of this application, and this application does not specifically limit it.

[0102] The working principle of the first support part 512 and the second support part 522 will be described in detail below with reference to the accompanying drawings.

[0103] Figure 15(a) illustrates an embodiment according to this application. Figure 13 A partial enlarged view of region S1. As shown in Figure 15(a), the first sliding shaft 300 is engaged with the first sliding groove 510 on the supporting component 500. The circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (i.e., the support surface of the first support part 512) restrict the direction of relative movement between the moving part structure 100 and the stator structure 200. That is, the circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (i.e., the support surface of the first support part 512) at P1 and the circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (i.e., the support surface of the first support part 512) at P2 cooperate to restrict the relative position between the first sliding shaft 300 and the supporting component 500 in any state, thereby restricting the relative position of the moving part structure 100 relative to the stator structure 200 in any state. In summary, the first sliding shaft 300 and the first sliding groove 510 cooperate to restrict the relative motion direction of the mover structure 100 and the stator structure 200. Here, "any state" refers to the state of the motor 30 at any given moment, which corresponds to the relative positional relationship between the mover structure 100 and the stator structure 200, as well as the relative positional relationship between the first sliding shaft 300 and the first sliding groove 510, which will not be elaborated further below.

[0104] Figure 15(b) illustrates an embodiment according to this application. Figure 13A partial enlarged view of region S2. As shown in Figure 15(b), the second sliding shaft 400 is engaged with the second sliding groove 520 on the supporting component 500. Through the circumferential surface of the second sliding shaft 400 and the groove surface of the second sliding groove 520 (that is, the support surface of the second support part 522), in conjunction with the circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (that is, the support surface of the first support part 512), the supporting component 500 supports the first sliding shaft 300 and the second sliding shaft 400, or the first sliding shaft 300 and the second sliding shaft 400 support the supporting component 500. That is, the circumferential surface of the second sliding shaft 400 and the groove surface of the second sliding groove 520 (i.e., the support surface of the second support part 522) at P3 cooperate, the circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (i.e., the support surface of the first support part 512) at P1 cooperate, and the circumferential surface of the first sliding shaft 300 and the groove surface of the first sliding groove 510 (i.e., the support surface of the first support part 512) at P2 cooperate, together restricting the first sliding shaft 300 and the second sliding shaft 400 from disengaging from the bearing member 500 in any state. In summary, the cooperation of the first sliding shaft 300 and the first sliding groove 510, and the cooperation of the second sliding shaft 400 and the second sliding groove 520, together restrict the mover structure 100 from disengaging from the stator structure 200, while absorbing dimensional tolerances.

[0105] In some implementations of this application, the mover structure 100 and the supporting component 500 are integrally formed. In the aforementioned motor 30, by integrally forming the mover structure 100 and the supporting component 500, the number of components in the motor 30 is reduced, the assembly difficulty of the motor 30 and the forming difficulty of the components are reduced, the assembly efficiency of the motor 30 is improved, and thus the overall economic benefits are improved.

[0106] It is understood that the above implementation is only a partial example of the connection between the moving substructure 100 and the supporting component 500. Other structural methods that can connect the moving substructure 100 and the supporting component 500 are also within the protection scope of this application. For example, the supporting component 500 is connected to the moving substructure 100, that is, the moving substructure 100 and the supporting component 500 are formed separately, and then the moving substructure 100 and the supporting component 500 are assembled together. No specific limitation is made in this regard.

[0107] As shown in Figure 14, in some implementations of this application, the first sliding shaft 300 is mounted on the stator structure 200 to achieve relative fixation between the first sliding shaft 300 and the stator structure 200. For example, the stator structure 200 has a mounting hole, and the first sliding shaft 300 passes through the mounting hole to achieve relative fixation between the first sliding shaft 300 and the stator structure 200.

[0108] For example Figure 12As shown in Figures 14(a) and 14(b), the stator structure 200 is a U-shaped frame structure. A first mounting portion 210 is formed on the stator structure 200, including a first mounting hole 211 and a second mounting hole 212 respectively formed on a pair of plate structures arranged opposite to each other on the stator structure 200. The first sliding shaft 300 includes a first end 310 and a second end 320. The first end 310 is mounted in the first mounting hole 211, and the second end 320 is mounted in the second mounting hole 212.

[0109] Similarly, a second mounting portion 220 is formed on the stator structure 200. The first mounting portion 220 includes a third mounting hole 221 and a fourth mounting hole 222 respectively formed on a pair of plate structures arranged opposite to each other on the stator structure 200. The second sliding shaft 400 includes a first end 410 and a second end 420. The first end 410 is mounted in the third mounting hole 221, and the second end 420 is mounted in the fourth mounting hole 222. It can be understood that the first axis l1 of the first sliding shaft 300 mounted on the stator structure 200 and the second axis l2 of the second sliding shaft 400 mounted on the stator structure 200 are parallel to each other.

[0110] For example, the stator structure 200 is provided with a mounting groove, and the first sliding shaft 300 is installed in the mounting groove through a mounting component to achieve relative fixation between the first sliding shaft 300 and the stator structure 200.

[0111] In addition, it is worth noting that the first sliding shaft 300 can be installed on the stator structure 200 in the following ways: one end of the first sliding shaft 300 can be installed on the stator structure 200, or both ends of the first sliding shaft 300 can be installed on the stator structure 200 respectively. This application does not make any specific limitation on this.

[0112] In other embodiments of this application, the motor 30 includes a mover structure 100, a stator structure 200, a first slide shaft 300, a second slide shaft 400, and a support member 500. The first slide shaft 300 and the second slide shaft 400 are mounted on the mover structure 100, and the stator structure 200 is connected to the support member 500. The mounting method of the first slide shaft 300 and the second slide shaft 400 on the mover structure 100 can refer to the mounting method of the first slide shaft 300 and the second slide shaft 400 on the stator structure 200 in the aforementioned embodiments, and the connection method of the support member 500 to the stator structure 200 can refer to the connection method of the support member 500 to the mover structure 100 in the aforementioned embodiments, and will not be elaborated further here.

[0113] In other embodiments of this application, the motor includes a mover structure, a stator structure, a first slide shaft, a second slide shaft, a first support component, and a second support component. The first support component has a first groove adapted to the first slide shaft, and the second support component has a second groove adapted to the second slide shaft. The first slide shaft is mounted on the stator structure, the first support component is connected to the mover structure, the second slide shaft is mounted on the mover structure, and the second support component is connected to the stator structure.

[0114] In other embodiments of this application, the motor includes a mover structure, a stator structure, a first slide shaft, a second slide shaft, a first support component, and a second support component. The first support component has a first groove adapted to the first slide shaft, and the second support component has a second groove adapted to the second slide shaft. The first slide shaft is mounted on the mover structure, the first support component is connected to the stator structure, the second slide shaft is mounted on the stator structure, and the second support component is connected to the mover structure.

[0115] In some embodiments of this application, the first support portion 512 has a V-shaped groove adapted to the shape of the first sliding shaft 300, and the first support portion 512 engages with the first sliding shaft 300 through the V-shaped groove. The second support portion 522 has a U-shaped groove adapted to the shape of the second sliding shaft 400. The second support portion 522 engages with the second sliding shaft 400 through the U-shaped groove. It is understood that the outlines of the grooves on the first support portion 512 and the second support portion 522 are only partial examples, and any other grooves on the first support portion 512 and the second support portion 522 that can achieve the corresponding function are also within the protection scope of this application, and this application does not specifically limit them. When the first support portion 512 has a V-shaped groove adapted to the shape of the first sliding shaft 300, the support surface of the first support portion 512 is the V-shaped groove surface. When the second support part 522 has a U-shaped groove that matches the shape of the second sliding shaft 400, the support surface of the second support part 522 is the U-shaped groove surface.

[0116] In some embodiments of this application, the three-point support is designed as a semi-open structure. The design of the two first support portions 512 and the second support portion 522 is flexible and relatively easy to design.

[0117] In some embodiments of this application, the point of application of the combined force that the motor 30 needs to overcome during operation is located within the triangular area formed by the two first support portions 512 and the second support portion 522. Here, the combined force refers to the force that the drive structure in the motor 30 needs to overcome when it drives the actuator structure 100 to move relative to the stator structure 200.

[0118] The triangular region can be defined by two first support parts 512 and one second support part 522 by integrating each first support part 512 into a first support point (e.g. Figure 9 Point A or point B in the diagram), and integrating the second support part 522 into a second support point (e.g., point ...). Figure 9 Point C in the diagram is used to generate a triangular region based on the two first support points and one second support point integrated in the diagram.

[0119] In some implementations of this application, two first support points and one second support point are used as three vertices to generate a triangular region.

[0120] In some alternative implementations of this application, a projection plane is determined, and two first support points and one second support point are projected onto the projection plane to obtain three projection points. These three projection points are then used as three vertices to generate a triangular region. The projection plane can be the coexisting plane of the first axis l1 of the first sliding shaft 300 and the second axis l2 of the second sliding shaft 400, or it can be a plane parallel to the coexisting plane of the first axis l1 of the first sliding shaft 300 and the second axis l2 of the second sliding shaft 400 (e.g., ...). Figure 11 S p The projection of the two first support points and the one second support point onto the projection plane can be an orthographic projection of the two first support points and the one second support point onto the projection plane, and this application does not specifically limit this.

[0121] The following will briefly describe several technical solutions for integrating a first support point according to the first support part 512 and a second support point according to the second support part 522.

[0122] In some embodiments of this application, the integration scheme of integrating a first support point into the first support portion 512 can be as follows: Two strip-shaped regions on the first support portion 512 that contact the first sliding shaft 300 are identified, and these two strip-shaped regions are integrated into two line segments. Subsequently, a center line segment is determined based on the two lines, which is coplanar with the two line segments and whose distance from any point to the two line segments is equidistant. A point on the center line segment can serve as the first support point. For example, the endpoint or midpoint of the center line segment can serve as the first support point.

[0123] In some implementations of this application, the strip region integration line can be achieved by using the center line of the strip region as the integrated line segment. It can be understood that, while ensuring molding and assembly accuracy, the two integrated line segments are straight lines parallel to the first axis l1 of the first sliding shaft 300. One of the integrated line segments passes through P1 and is a straight line parallel to the first axis l1 of the first sliding shaft 300. The other integrated line segment passes through P2 and is a straight line parallel to the first axis l1 of the first sliding shaft 300.

[0124] In other embodiments of this application, the integration scheme of integrating a first support point into the first support portion 512 can be as follows: the intersection points of the two end faces of the first support portion 512 with the first axis l1 of the first sliding shaft 300 are determined respectively, and the line segment between the two intersection points is the integrated line segment corresponding to the first support portion 512. A point on the integrated line segment can be used as the first support point. For example, the endpoint or midpoint of the integrated line segment can be used as the first support point.

[0125] In some embodiments of this application, the integration scheme of integrating a second support point into the second support portion 522 can be as follows: The intersection points where the two end faces of the second support portion 522 intersect with the second axis l2 of the second sliding shaft 400 are determined respectively. The line segment between the two intersection points is the integrated line segment corresponding to the second support portion 522, and a point on this integrated line segment can serve as the second support point. For example, the endpoint or midpoint of the integrated line segment can serve as the second support point.

[0126] In addition, the triangular region can also be determined by using the two first support parts 512 and the second support part 522, by taking the center or center of gravity of each first support part 512 as a first support point (e.g. Figure 9 Point A or point B in the diagram), and the center or center of gravity of the second support 522 as a second support point (e.g., point ...). Figure 9 Point C in the diagram is used to generate a triangular region based on two first support points and one second support point.

[0127] It is understood that the above-described method of determining the triangular region by using two first support parts 512 and one second support part 522 is only a partial example. Other methods of determining the triangular region are also within the scope of protection of this application, and this application does not make specific limitations on them.

[0128] In some implementations of this application, the point of application of the combined force that the motor 30 needs to overcome during operation can be the actual position of the combined force acting on the motor 30. In other alternative implementations of this application, the point of application of the combined force that the motor 30 needs to overcome during operation can be the projected position of the actual position of the combined force acting on the motor 30 within the projection plane.

[0129] For example, the combined force can be the resultant force of the gravity of the moving part structure 100, the gravity of other components connected to the moving part structure 100 (such as the lens 10 and the lens carrier), the magnetic attraction between the moving part structure 100 and the stator structure 200, and the frictional force between the moving part structure 100 and other components. It is understood that the above-mentioned combined force is only a partial implementation of the embodiments of this application, and the combined force can also be manifested in other forms, which are not specifically limited in this application.

[0130] In some embodiments of this application, the point of application of the combined force coincides with the center of the triangular region formed by the two first support portions 512 and the second support portion 522.

[0131] In some embodiments of this application, the distance between any one of the first support portions 512 and the second support portion 522 is equal. That is, the two first support portions 512 are symmetrically distributed on the first groove 511 with respect to the second support portion 522.

[0132] In some embodiments of this application, the bearing component 500 is made of any one of stainless steel, liquid crystal polymer (LCP), polycarbonate (PC), and polyamide (PA). PA is commonly known as nylon. In some implementations of this application, the LCP material type can be CM529b.

[0133] In some embodiments of this application, the size of the first support portion 512 along the direction of the first axis l1 ranges from 0.8 mm to 1 mm. For example, the size of the first support portion 512 along the direction of the first axis l1 is 0.95 mm.

[0134] In some embodiments of this application, the second support portion 522 has a dimension ranging from 0.7 mm to 0.9 mm along the second axis l2. For example, the first support portion 512 has a dimension of 0.80 mm along the first axis l1.

[0135] In some embodiments of this application, the motor 30 further includes a drive structure. The drive structure is used to drive the actuator structure 100 to move relative to the stator structure 200.

[0136] In some implementations of this application, the base of the drive structure is disposed on the stator structure 200, and the drive end of the drive structure is connected to the moving part structure 100. When the drive structure is in operation, with the cooperation of the first sliding shaft 300, the second sliding shaft 400 and the supporting component 500, the drive end of the drive structure drives the moving part structure 100 to move relative to the stator structure 200, that is, to realize the relative movement between the lens 10 and the optical sensing component 20, thereby realizing the focusing and resetting of the camera module 14.

[0137] For example, the driving structure can be an electromagnetic driving structure. The driving structure includes a focusing coil and a magnet assembly. The magnet assembly forms a stable magnetic field. The focusing coil is fixed relative to the stator structure 200 and located within the magnetic field formed by the magnet assembly. When energized, a magnetic field is generated inside the focusing coil, which interacts with the magnet assembly to generate a driving force. Under the action of this driving force, the focusing coil drives the moving part structure 100 to move relative to the stator structure 200, thereby realizing the relative movement of the lens 10 relative to the optical sensing component 20, ultimately completing the focusing and resetting of the camera module 14.

[0138] For example, the driving structure can be an electromagnetic driving structure. The driving structure includes a focusing coil and a magnet assembly. The magnet assembly forms a stable magnetic field. The focusing coil is fixed relative to the moving part structure 100 and located within the magnetic field formed by the magnet assembly. When energized, a magnetic field is generated inside the focusing coil, which interacts with the magnet assembly to generate a driving force. Under the action of this driving force, the focusing coil drives the moving part structure 100 to move relative to the stator structure 200, thereby realizing the relative movement of the lens 10 relative to the optical sensing component 20, ultimately completing the focusing and resetting of the camera module 14.

[0139] It is understood that the above implementation is only a partial example of the driving structure, and the structure and connection method of other forms of driving structures are also within the protection scope of this application, which does not make specific limitations on them.

[0140] In some other embodiments of this application, the motor 30 also includes a housing. In some implementations of this application, a buffer is also provided between the housing and the moving part structure 100 to prevent the moving part structure 100 from impacting the housing during the operation of the motor 30, thereby reducing abnormal noise and improving the user experience.

[0141] In addition, this application also provides a camera module 14. As shown in FIG1(b), in some embodiments of this application, the camera module 14 includes a lens 10, an optical sensing component 20 and any of the above-mentioned motors 30, wherein the lens 10 is connected to the mover structure 100 in the motor 30, and the optical sensing component 20 is connected to the stator structure 200 in the motor 30, or the lens 10 is connected to the stator structure 200 in the motor 30, and the optical sensing component 20 is connected to the mover structure 100 in the motor 30.

[0142] In addition, this application also provides an electronic device. In some embodiments of this application, the electronic device includes any of the above-described camera modules 14. For example, the electronic device is a mobile phone 1. As shown in FIG1(b), in some embodiments of this application, the mobile phone 1 includes a screen 11, a mid-frame 12, a back cover 13, and a camera module 14. The screen 11, mid-frame 12, and back cover 13 are arranged sequentially along the negative Z-axis, and the screen 11, mid-frame 12, and back cover 13 together form a mounting cavity (not shown). The camera module 14 is located in the mounting cavity and is mounted on at least one of the components of the screen 11, mid-frame 12, and back cover 13. It is understood that the above implementation is only a partial example showing the specific structure of the mobile phone 1, and other mobile phones 1 including camera modules 14 are also within the protection scope of this application, and are not specifically limited thereto.

[0143] In addition, this application also provides a design method for a support component 500. Figure 16(a) shows a flowchart of the design method for the support component 500 in some embodiments of this application. As shown in Figure 16(a), the design method for the support component 500 in this application includes the following steps:

[0144] S1601: Determine the point of application O of the combined force that the motor 30 needs to overcome when the actuator substructure 100 and the stator structure 200 are in relative motion, as shown in Figure 17(a). Figure 17(a) shows the point of application O of a combined force according to an embodiment of this application.

[0145] Among them, the combined force refers to the force that needs to be overcome when the drive structure in the motor 30 drives the mover structure 100 to move relative to the stator structure 200.

[0146] For example, the combined force can be the resultant force of the gravity of the moving part structure 100, the gravity of other components connected to the moving part structure 100 (such as the lens 10 and the lens carrier), the magnetic attraction between the moving part structure 100 and the stator structure 200, and the frictional force between the moving part structure 100 and other components. It is understood that the above-mentioned combined force is only a partial implementation of the embodiments of this application, and the combined force can also be manifested in other forms, which are not specifically limited in this application.

[0147] In some embodiments of this application, the first sliding shaft 300 (or the second sliding shaft 400) is a magnetic conductor, and magnets are arranged around the first sliding shaft 300 (or the second sliding shaft 400), with the magnets relatively fixed to the mover structure 100. The relative stability between the mover structure 100 and the first sliding shaft 300 (or the second sliding shaft 400) is maintained as much as possible through the Lorentz force between the first sliding shaft 300 (or the second sliding shaft 400) and the magnets. It can be understood that the Lorentz force between the first sliding shaft 300 (or the second sliding shaft 400) and the magnets is the magnetic attraction force between the mover structure 100 and the stator structure 200.

[0148] It is easy to see that when the moving part structure 100 moves along the first sliding shaft 300 (or the second sliding shaft 400), the relative position of the moving part structure 100 and the first sliding shaft 300 (or the second sliding shaft 400) changes. That is, the relative position of the magnet and the first sliding shaft 300 (or the second sliding shaft 400) changes. Generally speaking, the magnetic field formed by the magnet cannot maintain consistency. Therefore, in some embodiments of this application, the motor 30 also includes a magnetic conductive sheet, which is arranged near the magnet to balance the magnetic field formed by the magnet, thereby maintaining the stability of the magnetic attraction force of the magnet and the first sliding shaft 300 (or the second sliding shaft 400) under various relative positions. Therefore, the above technical solution can also improve the stability of the comprehensive force that the motor 30 needs to overcome, improve the stability of the motor 30 operation, and improve the stability of the camera module 14 during operation.

[0149] The material of the magnetic conductive sheet is not specifically limited in this application; it can be SPCC or SUS430. This application does not impose any specific restrictions on this material.

[0150] The point of application O refers to the equivalent position on the supporting component 500 when the combined force is applied to it. In some implementations of this application, the combined force and the combined point of application O can be obtained through simulation, which will not be described in detail here.

[0151] S1602: Determine the positions of the two first support parts 512 and the position of the second support part 522, and make the point of application O of the combined force fall into the triangle formed by the two first support parts 512 and the second support part 522.

[0152] In some embodiments of this application, the specific scheme for determining the positions of the two first support portions 512 and the position of the second support portion 522 may be as follows: First, determine the first groove 511 and the second groove 521. Then, determine the two first support portions 512 on the first groove 511 and the second support portion 522 on the second groove 521, such that the point of application of the combined force falls within the triangle formed by the two first support portions 512 and the second support portion 522.

[0153] In other embodiments of this application, the specific scheme for determining the positions of the two first support portions 512 and the second support portion 522 may be as follows: First, determine the two first support portions 512 and the second support portion 522, ensuring that the point of application of the combined force falls within the triangle formed by the two first support portions 512 and the second support portion 522. Then, determine the first groove 511 based on the two first support portions 512, and determine the second groove 521 based on the extending direction of the first groove 511 and the second support portion 522.

[0154] Figure 17(b) shows a schematic diagram of a design scheme for a first support portion 512 according to an embodiment of this application. Figure 17(c) shows a schematic diagram of a design scheme for a second support portion 522 according to an embodiment of this application. Figure 17(d) shows a schematic diagram of a design scheme for a bearing member 500 according to an embodiment of this application. The following will be a collection of... Figures 17(b) to 17(d) The molding scheme of the supporting component 500 is described in detail.

[0155] For example, first determine the positions of the two first support portions 512, as shown in Figure 17(b). Then, place the second support portion 522 on the vertical line from the point of application of the combined force to the line connecting the two first support portions 512, as shown in Figure 17(c). The second support portion 522 can be set within a certain range, for example, extending outwards to both sides by ±0.5mm (e.g., 522-1 and 522-2 in Figure 17(d)) ​​and having a 0.05mm rounded corner, as shown in Figure 17(d).

[0156] S1603: Design the dimensions and arrangement of the two first support parts 512 and the second support part 522.

[0157] For example, the second support portion 522 has a bearing width of 0.95 mm and a rounded corner of 0.08 mm. The bearing width of the second support portion 522 is the dimension of the second support portion 522 along the second axis l2.

[0158] It is understood that after completing the design of the first support portion 512 and the second support portion 522, this application also provides a method for processing the bearing component 500. Figure 16(b) shows a flowchart of the processing method of the bearing component 500 in some embodiments of this application. As shown in Figure 16(b), the processing method of the bearing component 500 in this application includes the following steps:

[0159] S1604: Make a mold insert that complements the two first support parts 512 and the second support part 522.

[0160] S1605: Support component 500 is injection molded using a mold insert. For example, a plastic part, namely support component 500, is injection molded using a mold insert and an LCP of model CM529b.

[0161] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0162] The above description illustrates the implementation of this application through specific embodiments. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. To provide a thorough understanding of this application, many specific details will be included in the following description. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details will be omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0163] In the description of this application, it should be noted that the terms "center", "vertical", "horizontal", "outer", "inner", "circumferential", "radial", "axial", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0164] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "fit" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0165] In the description of this application, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one" does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0166] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A motor (30), characterized in that, The motor (30) includes: Motor structure (100); Stator structure (200); First sliding shaft (300); The second slide shaft (400) has a second axis parallel to the first axis of the first slide shaft (300); A support component (500) is connected to the moving part structure (100), and the first sliding shaft (300) and the second sliding shaft (400) are connected to the stator structure (200); or, the support component (500) is connected to the stator structure (200), and the first sliding shaft (300) and the second sliding shaft (400) are connected to the moving part structure (100). The bearing component (500) is provided with two first support portions (512) adapted to the first sliding shaft (300). The first sliding shaft (300) is engaged in the two first support portions (512) to limit the relative movement direction of the moving part structure (100) and the stator structure (200). The supporting component (500) is also provided with a second support part (522) adapted to the second sliding shaft (400). The second sliding shaft (400) is engaged in the second support part (522) on the supporting component (500) to restrict the moving part structure (100) from disengaging from the stator structure (200).

2. The motor (30) according to claim 1, characterized in that, The first support part (512) is provided with a V-shaped groove that matches the shape of the first sliding shaft (300), and the second support part (522) is provided with a U-shaped groove that matches the shape of the second sliding shaft (400).

3. The motor (30) according to claim 1 or 2, characterized in that, The point of application of the combined force that the motor (30) needs to overcome during operation is located within the triangular area formed by the two first support parts (512) and the one second support part (522).

4. The motor (30) according to claim 3, characterized in that, The combined force is the resultant force of the gravity of the moving part structure (100) and the magnetic attraction between the moving part structure (100) and the stator structure (200).

5. The motor (30) according to claim 3 or 4, characterized in that, The point of application of the combined force coincides with the center of the triangular region formed by the two first support parts (512) and the one second support part (522).

6. The motor (30) according to any one of claims 1 to 5, characterized in that, The supporting component (500) is made of any one of stainless steel, liquid crystal polymer, polycarbonate and polyamide.

7. A motor (30), characterized in that, The motor (30) includes: Motor structure (100); Stator structure (200); First sliding shaft (300); The second slide shaft (400) has a second axis parallel to the first axis of the first slide shaft (300); A support component (500), the support component (500) including a first support component and a second support component, The first supporting component is connected to the moving part structure (100), the first sliding shaft (300) is connected to the stator structure (200), the second supporting component is connected to the stator structure (200), and the second sliding shaft (400) is connected to the moving part structure (100); or, the first supporting component is connected to the stator structure (200), the first sliding shaft (300) is connected to the moving part structure (100), the second supporting component is connected to the moving part structure (100), and the second sliding shaft (400) is connected to the stator structure (200). The first bearing component is provided with two first support parts (512) adapted to the first sliding shaft (300). The first sliding shaft (300) is engaged in the two first support parts (512) to limit the relative movement direction of the moving part structure (100) and the stator structure (200). The second support component is provided with a second support portion (522) adapted to the second slide shaft (400). The second slide shaft (400) is engaged in the second support portion (522) on the support component (500) to restrict the moving part structure (100) from disengaging from the stator structure (200).

8. The motor (30) according to claim 7, characterized in that, The first support part (512) is provided with a V-shaped groove that matches the shape of the first sliding shaft (300), and the second support part (522) is provided with a U-shaped groove that matches the shape of the second sliding shaft (400).

9. A camera module (14), characterized in that, The camera module (14) includes a lens (10), an optical sensing component (20), and a motor (30) as described in any one of claims 1 to 8, wherein the lens (10) is connected to the mover structure (100) in the motor (30), and the optical sensing component (20) is connected to the stator structure (200) in the motor (30), or the lens (10) is connected to the stator structure (200) in the motor (30), and the optical sensing component (20) is connected to the mover structure (100) in the motor (30).

10. An electronic device, characterized in that, The electronic device includes the camera module (14) as described in claim 9.

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