Actuating motor, camera module and electronic device
By using magnetostrictors to drive the seat movement of the camera module, the limitations of electromagnetic interference on the motor structure are solved, fast response and efficient driving are achieved, internal layout is simplified, and the performance of the camera module is improved.
Patent Information
- Application Number
- CN202110826737.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-07-21
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2041-07-21
AI Technical Summary
In the prior art, magnetic field interference of electromagnetic drive motors leads to limited structural design, affecting the structural design and performance of camera modules.
The magnetostrictor is used to provide driving force, and the seat body is driven to move through the deformation of the magnetostrictor, avoiding electromagnetic interference and simplifying the motor structure.
It improves the response speed and flexibility of internal component layout, reduces the constraints on the structure of electromagnetic interference, and enhances the driving efficiency and accuracy of the camera module.
Smart Images

Figure CN115696000B_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of terminals, and in particular, to an actuating motor, a camera module, and an electronic device. Background Art
[0002] With the development of science and technology, users have higher and higher requirements for the shooting function and image quality of terminal devices. In order to improve the image quality of the camera, a corresponding motor can usually be configured for the camera, and the lens is driven by the motor to move for focusing.
[0003] In the related art, the motor is usually an electromagnetic drive structure, but the magnetic field generated by the magnet arranged inside it will generate electromagnetic interference to a certain extent. In order to avoid this situation, it will impose great constraints on the internal structure setting method and stacking method of the motor, which is not conducive to the structural design of the drive motor. Summary of the Invention
[0004] The present disclosure provides an actuating motor, a camera module, and an electronic device to solve the deficiencies in the related art.
[0005] According to the first aspect of the embodiments of the present disclosure, an actuating motor is provided, including:
[0006] A housing, the housing includes a receiving cavity;
[0007] A seat body, the seat body is used to fix the lens, the seat body is movably arranged in the receiving cavity, and the seat body includes a fixing block;
[0008] A magnetostrictive element, the magnetostrictive element penetrates through the fixing block, and both ends of the magnetostrictive element are fixedly connected to the housing respectively;
[0009] A coil, the coil is wound around the outer periphery of the magnetostrictive element, and the energized state of the coil is related to the deformation state of the magnetostrictive element;
[0010] Wherein, when the magnetostrictive element deforms, a force acting on the fixing block is generated, and the force drives the seat body to translate in the housing along the depth direction of the receiving cavity, or drives the seat body to translate in the housing along a plane perpendicular to the depth direction of the receiving cavity through the fixing block.
[0011] Optionally, it includes:
[0012] A mounting member, the mounting member is located in the receiving cavity and fixedly connected to the housing, each mounting member is fixedly connected to one end of any one of the magnetostrictive elements, or the ends of multiple magnetostrictive elements extending towards the same mounting member are all fixedly connected to the mounting member.
[0013] Optionally, the mounting member includes a flat portion and a clamping portion that extends upward from an end of the flat portion and is bent to abut against the flat portion, and the clamping portion is fixedly connected to an end of the magnetostrictive member.
[0014] Optionally, the two mounting members connected to the same magnetostrictive member and the fixing block connected to the magnetostrictive member are all located in a plane parallel to the depth direction, and the height of the fixing block connected to the magnetostrictive member is different from that of the mounting member.
[0015] Optionally, the two mounting members connected to the same magnetostrictive member and the fixing block connected to the magnetostrictive member are all located in a plane perpendicular to the depth direction, and the fixing block is located on one side of the straight line formed by the two mounting members.
[0016] Optionally, the housing includes:
[0017] A cover body;
[0018] A base, the base is connected to the cover body to enclose the accommodation cavity, and the mounting member is fixedly connected to the base.
[0019] Optionally, the base includes a plate-shaped body and an extension portion, the extension portion extends from the circumferential edge of the plate-shaped body toward the cover body, and the mounting member is fixedly connected to a corner of the extension portion.
[0020] Optionally, the magnetostrictive member includes a first magnetostrictive member and a second magnetostrictive member, and the first magnetostrictive member and the second magnetostrictive member are centrosymmetrically arranged about the symmetry center of the housing.
[0021] Optionally, the magnetostrictive member includes a third magnetostrictive member and a fourth magnetostrictive member, and the straight line formed by the connection position of the third magnetostrictive member and the housing and the straight line formed by the connection position of the fourth magnetostrictive member and the housing are perpendicular to each other.
[0022] Optionally, it includes:
[0023] A first elastic sheet, the first elastic sheet is connected between the seat body and the inner wall of the accommodation cavity;
[0024] A second elastic sheet, the second elastic sheet is arranged at an interval from the first elastic sheet along the depth direction of the accommodation cavity, the second elastic sheet is connected between the seat body and the inner wall of the accommodation cavity, and the magnetostrictive member drives the seat body to translate along the depth direction.
[0025] Optionally, the base includes a plurality of wire winding posts. Each of the coils includes an input end and an output end. After winding out of the magnetostrictive member, the input end and the output end are wound around different wire winding posts, and the input end and the output end are respectively electrically connected to the second elastic piece.
[0026] The driving motor includes an input terminal and an output terminal. The input terminal and the output terminal are respectively disposed at the bottom of the housing and at least partially located outside the accommodation cavity. The input terminal is electrically connected to the input end of the coil through the second elastic piece, and the output terminal is electrically connected to the output end of the coil through the second elastic piece.
[0027] Optionally, the base includes an annular cavity for assembling the lens.
[0028] According to a second aspect of the embodiments of the present disclosure, there is provided a camera module, including:
[0029] A lens;
[0030] The driving motor as described in any one of the above embodiments, wherein the lens is connected to the base.
[0031] According to a third aspect of the embodiments of the present disclosure, there is provided an electronic device including the camera module as described in any one of the above embodiments.
[0032] The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:
[0033] As can be seen from the above embodiments, in the technical solution of the present disclosure, the deformation of the magnetostrictive member is used to provide a driving force for the movement of the base, and the response speed is fast. Compared with the related art in which the driving force is provided by the interaction between a permanent magnet and an energized coil, electromagnetic interference can be avoided. Moreover, in the structure of the driving motor, since electromagnetic interference does not need to be considered, the constraints on its internal structure are reduced, which is beneficial to the layout of internal components.
[0034] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0035] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present disclosure and, together with the specification, are used to explain the principles of the present disclosure.
[0036] Figure 1 is an exploded schematic view of a driving motor shown according to an exemplary embodiment.
[0037] Figure 2 is a schematic structural view of a magnetostrictive member shown according to an exemplary embodiment.
[0038] Figure 3 It is a schematic structural diagram of a mounting member shown according to an exemplary embodiment.
[0039] Figure 4 It is a schematic partial structural diagram of a seat body shown according to an exemplary embodiment.
[0040] Figure 5 It is a schematic deformation diagram of a first magnetostrictive element shown according to an exemplary embodiment.
[0041] Figure 6 It is a schematic structural diagram of another magnetostrictive element shown according to an exemplary embodiment. Detailed implementation manners
[0042] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.
[0043] The terms used in the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The singular forms "a", "the", and "said" used in the present disclosure and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.
[0044] It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present disclosure, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "when" or "while" or "in response to determining".
[0045] Figure 1 It is an exploded schematic diagram of an actuating motor 100 shown according to an exemplary embodiment. As Figure 1As shown in the figure, the actuating motor 100 may include a housing 1, a base 2, a magnetostrictive element 3, and a coil. Among them, the housing 1 may include a receiving cavity 11 that penetrates along the depth direction, which is beneficial for the lighting of the lens included in the camera module when the actuating motor 100 is configured in the camera module and the light emitted from the lens to enter the image sensor of the camera module; the base 2 is movably arranged in the receiving cavity 11, and the base 2 can be used to fix the lens of the camera module. Thus, when the base 2 moves in the housing 1, it can drive the lens to move synchronously, realizing the focusing function or anti-shake function of the camera module. Specifically, the base 2 may include an annular cavity 22 and a fixing block 21. The fixing block 21 is located on the periphery of the annular cavity 22, and the lens can pass through the annular cavity 22 to be fixedly connected to the base 2. The magnetostrictive element 3 can pass through the fixing block 21, and both ends of the magnetostrictive element 3 can be respectively fixed to the housing 1. The coil can be wound around the outer periphery of the magnetostrictive element 3. The energized state of the coil is related to the deformation state of the magnetostrictive element 3 it surrounds. For example, when energized, it can cause the magnetostrictive element 3 to elongate or shorten.
[0046] In this embodiment, both ends of the magnetostrictive element 3 are fixedly connected to the housing 1, and the middle part can pass through the fixing block 21. Based on the two connection points connected to the housing 1 and the fixing block 21, when the magnetostrictive element 3 deforms under the action of the coil, a force acting on the fixing block 21 can be generated. This force can act on the base 2 through the fixing block 21. Since the base 2 including the fixing block 21 is movably arranged, the base 2 can move in the housing 1. Specifically, the moving direction of the base 2 is related to the setting method of the base 2 itself in the housing 1. The base 2 can move along the depth direction of the receiving cavity 11 in the housing 1, which is beneficial for realizing the focusing function of the camera module subsequently; or, the base 2 can also translate in a plane perpendicular to the depth direction in the housing 1, which is beneficial for realizing the anti-shake function of the camera module subsequently.
[0047] As can be seen from the above embodiments, in the technical solution of the present disclosure, the deformation of the magnetostrictive element 3 is used to provide a driving force for the movement of the base 2, and the response speed is fast. Compared with the method of providing a driving force through the interaction between a permanent magnet and an energized coil in the related art, electromagnetic interference can be avoided. Moreover, in the structure of the driving motor, since electromagnetic interference does not need to be considered, the constraints on its internal structure are reduced, which is beneficial for the layout of internal components.
[0048] In this embodiment, the actuating motor 100 may include one or more magnetostrictive members 3. Each magnetostrictive member 3 may pass through a single fixing block 21, and both ends thereof may be fixedly connected to the inner wall of the housing 1 respectively. Specifically, when the actuating motor 100 includes a plurality of magnetostrictive members 3, the plurality of magnetostrictive members 3 may be arranged in pairs opposite to each other, and the deformation states of the magnetostrictive members 3 arranged opposite to each other are the same, so that the magnetostrictive members 3 arranged opposite to each other can provide forces in the same direction to the seat body 2, avoiding the inclination of the seat body 2, affecting the position of the camera, and further affecting the shooting effect. When the actuating motor 100 includes a plurality of magnetostrictive members 3, the same coil may be wound around the outer periphery of one magnetostrictive member 3, or may also be wound around the outer peripheries of a plurality of magnetostrictive members 3. The present disclosure does not limit this. The magnetostrictive member 3 may include a giant magnetostrictive member 3. By using the characteristics of high conversion rate between mechanical energy and electrical energy, large energy density, and good reliability of the giant magnetostrictive material, the moving accuracy and moving efficiency of the seat body 2 in the present disclosure can be further improved.
[0049] In some cases, both ends of the magnetostrictive member 3 may be directly fixedly connected to the inner wall of the housing 1, with a simple and convenient structure; in some other embodiments, the actuating motor 100 may further include a mounting member 4. The mounting member 4 may be disposed in the accommodating cavity 11 of the housing 1 and may also be fixedly connected to the housing 1. Each mounting member 4 may be fixedly connected to one end of any magnetostrictive member 3; or each mounting member 4 may be fixedly connected to a plurality of magnetostrictive members 3. For example, in the embodiment provided by the present disclosure, as Figure 2 shown, assuming that the magnetostrictive members 3 of the actuating motor 100 include a first magnetostrictive member 31, a second magnetostrictive member 32, a fifth magnetostrictive member 35, and a sixth magnetostrictive member 36, and the mounting members 4 include a first mounting member 41, a second mounting member 42, a third mounting member 43, and a fourth mounting member 44. Among them, one end of the first magnetostrictive member 31 and the second magnetostrictive member 32 both extend toward the first mounting member 41, and the first magnetostrictive member 31 and the second magnetostrictive member 32 are respectively connected to the first mounting member 41; similarly, the second magnetostrictive member 32 and the fifth magnetostrictive member 35 are respectively connected to the second mounting member 42, the sixth magnetostrictive member 36 and the fifth magnetostrictive member 35 are respectively connected to the third mounting member 43, and the sixth magnetostrictive member 36 and the first magnetostrictive member 31 are respectively connected to the fourth mounting member 44. That is, the ends of the plurality of magnetostrictive members 3 extending toward the same mounting member 4 may be respectively connected to the mounting member 4 to achieve fixation. Of course, in Figure 2In the illustrated embodiment, taking the actuator motor 100 including a first magnetostrictive member 31, a second magnetostrictive member 32, a fifth magnetostrictive member 35, and a sixth magnetostrictive member 36, and the mounting member 4 including a first mounting member 41, a second mounting member 42, a third mounting member 43, and a fourth mounting member 44 as an example for illustration, in other embodiments, the actuator motor 100 may of course further include other numbers of magnetostrictive members 3 and corresponding numbers of mounting members 4.
[0050] Taking the first mounting member 41 as an example, as Figure 3 shown, the first mounting member 41 may include a flat portion 411 and a clamping portion 412 that extends upward from the end of the flat portion 411 and bends to abut against the flat portion 411. The clamping portion 412 may be fixedly connected to the magnetostrictive member 3. For example, the first mounting member 41 may include two clamping portions 412, one of the clamping portions 412 may be fixedly connected to the first magnetostrictive member 31, and the other clamping portion 412 may be fixedly connected to the second magnetostrictive member 32. It should be noted that in other embodiments, if the number of magnetostrictive members 3 connected to the first mounting member 41 is other, the number of clamping portions 412 of the first mounting member 41 may change accordingly. Specifically, the number of clamping portions 412 may be equal to the number of magnetostrictive members 3 connected to the first mounting member 41. Among them, the structures of the second mounting member 42, the third mounting member 43, and the fourth mounting member 44 may refer to the first mounting member 41, and will not be elaborated here one by one.
[0051] Regarding the assembly position of the mounting member 4, as Figure 4 shown, the housing 1 may include a cover body 12 and a base 13. The base 13 and the cover body 12 are connected to enclose a receiving cavity 11, and the mounting member 4 may be assembled on the base 13. Thus, through the split-type arrangement of the cover body 12 and the base 13, it is convenient to install the seat body 2. The base 13 may include a plate-shaped body 131 and an extension portion 132. The extension portion 132 may extend from the axial edge of the plate-shaped body 131 toward the top of the cover body 12, and the mounting member 4 may be fixedly connected to the corner of the extension portion 132. Thus, when the plate-shaped body 131 of the base 13 is in a regular shape, the mounting members 4 at multiple corners may present a certain arrangement rule, which facilitates the arrangement of multiple magnetostrictive members 3 according to a certain rule, and facilitates the realization of the movement of the seat body 2 in the depth direction of the receiving cavity 11; or the movement in a plane perpendicular to the depth direction of the receiving cavity 11.
[0052] In the above embodiment, it is illustrated that the seat body 2 may move along the depth direction of the receiving cavity 11, or move in a plane perpendicular to the depth direction. For these two different movement modes, different arrangement requirements are imposed on the magnetostrictive members 3.
[0053] In one embodiment, as Figure 2As shown in the figure, assuming that the current plane is perpendicular to the depth direction of the accommodation cavity 11, then the mounting member 4 connected to the same magnetostrictive member 3 and the fixing block 21 connected to the magnetostrictive member 3 are located in the same plane, and the fixing block 21 can be located on one side of the straight line formed by the two mounting members 4, specifically, it can be located on one side of the straight line formed by the connection positions of the two mounting members 4 and the magnetostrictive member 3. For example, in Figure 2 , the first mounting member 41, the fourth mounting member 44 and the fixing block 21 are all located in a plane perpendicular to the depth direction of the accommodation cavity 11, and the fixing block 21 is located on the left side of the straight line formed by the first mounting member 41 and the fourth mounting member 44. At this time, a triangle as shown in Figure 5 can be formed by the first mounting member 41, the fourth mounting member 44 and the fixing block 21.
[0054] Among them, assuming that the black solid line is the initial state of the first magnetostrictive member 31 when it is not deformed, and the dotted line is the position of the first magnetostrictive member 31 after deformation, the length of the straight line formed by the connection of the first mounting member 41 and the fourth mounting member 44 is 2D. The first mounting member 41, the fourth mounting member 44 and the fixing block 21 can form an isosceles triangle. In the initial state, the included angle between the first magnetostrictive member 31 and the straight line formed by the connection of the first mounting member 41 and the fourth mounting member 44 is α. After deformation, the length of the first magnetostrictive member 31 is 2R, and the distance from the fixing block 21 to the straight line formed by the connection of the first mounting member 41 and the fourth mounting member 44 after deformation is L. When the amount of deformation generated by the first magnetostrictive member 31 is △x, it can drive the fixing block 21 to translate a displacement of △y in the direction perpendicular to the depth direction of the accommodation cavity 11. According to the principle of triangle magnification, the following formula can be satisfied among the above parameters:
[0055]
[0056]
[0057] It can be calculated that:
[0058] Δx = 2D / cosα - 2D / cos(α - dα);
[0059] It can also be obtained that:
[0060] tanα = (L + Δy) / D;
[0061] tan(α - dα) = L / D;
[0062] It can be calculated that:
[0063] Δy = D tanα - D tan(α - dα);
[0064] Thus, it can be obtained that:
[0065]
[0066] lim dα→0 Δy / Δx = 1 / 2sinα;
[0067] It can be seen that when the first magnetostrictive member 31 is in the initial state, the smaller the angle between the straight line formed by the connection of the first magnetostrictive member 31 with the first mounting member 41 and the fourth mounting member 44, the larger the displacement that can drive the fixed block 21 to move during the subsequent deformation process, and accordingly, the displacement of the seat body 2 will also increase. Moreover, since the first mounting member 41, the fourth mounting member 44, and the fixed block 21 are located in the same plane, when the first magnetostrictive member 31 deforms, it can apply a force parallel to this plane to the fixed block 21, thereby pushing the seat body 2 to move in this plane. The relationship between the other mounting members 4 and the fixed block 21 and the magnetostrictive member 3 can refer to the foregoing embodiments, and will not be elaborated herein one by one.
[0068] Wherein, the straight line formed by the connection position of the first magnetostrictive member 31 and the housing 1 is perpendicular to the straight line formed by the connection position of the second magnetostrictive member 32 and the housing 1. In this way, the first magnetostrictive member 31 and the second magnetostrictive member 32 can provide forces that are in a plane perpendicular to the depth direction of the accommodation cavity 11 and are perpendicular to each other. Therefore, the seat body 2 can be pushed to move in the orthogonal directions in this plane, so that the seat body 2 can be moved to any position to meet the anti-shake requirement. The above is only illustrated by taking the first magnetostrictive member 31 and the second magnetostrictive member 32 as examples. In other embodiments, the straight lines formed by the connection positions of other adjacent magnetostrictive members 3 and the housing 1 in the actuator motor 100 are perpendicular, and the present disclosure does not limit this.
[0069] In another embodiment, such as Figure 6As shown, the magnetostrictive members 3 of the actuating motor 100 may include a third magnetostrictive member 33, a fourth magnetostrictive member 34, a fifth magnetostrictive member 35, and a sixth magnetostrictive member 36. The sixth magnetostrictive member 36 and the fourth magnetostrictive member 34 are both connected to the fourth mounting member 44, the fourth magnetostrictive member 34 and the fifth magnetostrictive member 35 are both connected to the first mounting member 41, the fifth magnetostrictive member 35 and the third magnetostrictive member 33 are both connected to the second mounting member 42, and the third magnetostrictive member 33 and the sixth magnetostrictive member 36 are both connected to the third mounting member 43. Among them, the sixth magnetostrictive member 36, the third mounting member 43, the fourth mounting member 44, and the fixing block 21 are located in the same plane parallel to the depth direction of the accommodating cavity 11, and the third mounting member 43 and the fourth mounting member 44 have the same height, and the height of the fixing block 21 is different from that of the third mounting member 43 and the fourth mounting member 44; similarly, the fourth magnetostrictive member 34, the first mounting member 41, the fourth mounting member 44, and the fixing block 21 are located in the same plane parallel to the depth direction of the accommodating cavity 11, and the first mounting member 41 and the fourth mounting member 44 have the same height, and the height of the fixing block 21 is different from that of the first mounting member 41 and the fourth mounting member 44; the fifth magnetostrictive member 35, the first mounting member 41, the second mounting member 42, and the fixing block 21 are located in the same plane parallel to the depth direction of the accommodating cavity 11, and the first mounting member 41 and the second mounting member 42 have the same height, and the height of the fixing block 21 is different from that of the first mounting member 41 and the second mounting member 42; the third magnetostrictive member 33, the second mounting member 42, the third mounting member 43, and the fixing block 21 are located in the same plane parallel to the depth direction of the accommodating cavity 11, and the second mounting member 42 and the third mounting member 43 have the same height, and the height of the fixing block 21 is different from that of the second mounting member 42 and the third mounting member 43. Based on this, when viewed perpendicular to the depth direction of the accommodating cavity 11, a triangle similar to Figure 5 can be obtained. Based on the foregoing analysis, it can be seen that since the two mounting members 4 and the fixing block 21 are located in the same plane, and there is a height difference between the fixing block 21 and the two mounting members 4 in the depth direction of the accommodating cavity 11, when the magnetostrictive member 3 deforms, a force parallel to this plane can be applied to the fixing block 21, thereby pushing the seat body 2 to translate along the depth direction of the accommodating cavity 11.
[0070] In this embodiment, the third magnetostrictive member 33 and the fourth magnetostrictive member 34 can be centrosymmetrically arranged about the symmetric center of the housing 1. Thus, the deformation of the third magnetostrictive member 33 and the fourth magnetostrictive member 34 can provide a uniform and same-direction force for the seat body 2, and the inclination of the seat body 2 can be avoided. The above is only described by taking the third magnetostrictive member 33 and the fourth magnetostrictive member 34 as examples. In other embodiments, the fifth magnetostrictive member 35 and the sixth magnetostrictive member 36 can also be centrosymmetrically arranged about the symmetric center of the housing 1. When the actuating motor 100 includes other numbers of magnetostrictive members 3, the number can be even, and they are pairwise centrosymmetrically arranged about the stacking center of the housing 1.
[0071] In each of the above embodiments, assuming that the seat body 2 translates along the depth direction of the accommodation cavity 11 under the drive of the magnetostrictive member 3, then in order to limit the translation of the seat body 2 in the plane perpendicular to the depth direction of the accommodation cavity 11, the actuating motor 100 can further include a first elastic sheet 5 and a second elastic sheet 6. The first elastic sheet 5 is connected between the seat body 2 and the inner wall of the accommodation cavity 11; the second elastic sheet 6 is spaced from the first elastic sheet 5 along the depth direction of the accommodation cavity 11, and the second elastic sheet 6 is connected between the seat body 2 and the inner wall of the accommodation cavity 11. Thus, the first elastic sheet 5 and the second elastic sheet 6 can absorb the force on the seat body 2 in the direction perpendicular to the depth direction of the accommodation cavity 11, and avoid the movement of the seat body 2 in this plane. Of course, in the embodiments provided in the present disclosure, only the first elastic sheet 5 and the second elastic sheet 6 are taken as examples for description. In other embodiments, the actuating motor 100 can further include other numbers of elastic sheets, which will not be elaborated here one by one.
[0072] In the technical solution of the present disclosure, the seat body 2 can include a plurality of winding posts (not shown). Each coil respectively includes an input end and an output end. After the input end and the output end are wound out of the magnetostrictive member, they are wound around different winding posts. The input end and the output end are respectively conducted with the second elastic sheet 6; the actuating motor 100 includes an input terminal and an output terminal. The input terminal and the output terminal are respectively arranged at the bottom of the housing 1 and at least partially located outside the accommodation cavity 11. The input terminal is conducted to the input end of the coil through the second elastic sheet 6, and the output terminal is conducted to the output end of the coil through the second elastic sheet 6, so as to realize the power supply to the coil. Of course, in order to avoid short circuit, the second elastic sheet 6 can include two independent parts. One part is conducted with the input terminal and the input end, and the other part is conducted with the output terminal and the output end.
[0073] Based on the technical solution of the present disclosure, a camera module is further provided. The camera module may include the actuator motor 100 described in any one of the above embodiments. The seat body 2 of the actuator motor 100 is connected to the lens of the camera module. The seat body 2 may assemble one or more lenses, and the present disclosure does not limit this. The present disclosure further provides an electronic device. The electronic device may include the camera module described in any one of the above embodiments. The electronic device may include one or more such camera modules to be used as a front camera or a rear camera, and the present disclosure does not limit this.
[0074] Those skilled in the art will readily conceive of other embodiments of the present disclosure after considering the specification and practicing the disclosure herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include known common knowledge or conventional technical means in the technical field not disclosed by the present disclosure. The specification and embodiments are only to be considered as exemplary, and the true scope and spirit of the present disclosure are pointed out by the following claims.
[0075] It should be understood that the present disclosure is not limited to the exact structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.
Claims
1. An actuating motor, characterized in that, Comprising: A housing, the housing including a receiving cavity; A base body, the base body for fixing a lens, the base body being movably disposed in the receiving cavity, the base body including a fixing block; A magnetostrictive element, the magnetostrictive element passing through the fixing block, and two ends of the magnetostrictive element being respectively fixedly connected to the housing; A coil, the coil being wound around the outer periphery of the magnetostrictive element, the energized state of the coil being related to the deformation state of the magnetostrictive element; A mounting member, the mounting member being located in the receiving cavity and fixedly connected to the housing, the fixing block and two adjacent mounting members forming a triangular structure in the same plane; Wherein, each mounting member is fixedly connected to one end of any one of the magnetostrictive elements, or the ends of multiple magnetostrictive elements extending towards the same mounting member are all fixedly connected to the mounting member. When the magnetostrictive element deforms, a force acting on the fixing block is generated, and the force drives the base body to translate along the depth direction of the receiving cavity in the housing, or drives the base body to translate in a plane perpendicular to the depth direction of the receiving cavity in the housing.
2. The actuating motor according to claim 1, characterized in that, The mounting member includes a flat portion and a clamping portion that extends upward from an end of the flat portion and is bent to abut against the flat portion, and the clamping portion is fixedly connected to the end of the magnetostrictive element.
3. The actuating motor according to claim 1, characterized in that, The two mounting members connected to the same magnetostrictive element and the fixing block connected to the magnetostrictive element are all located in a plane parallel to the depth direction, and the height of the fixing block connected to the magnetostrictive element is different from that of the mounting member.
4. The actuating motor according to claim 1, characterized in that, The two mounting members connected to the same magnetostrictive element and the fixing block connected to the magnetostrictive element are all located in a plane perpendicular to the depth direction, and the fixing block is located on one side of the straight line formed by the two mounting members.
5. The actuating motor according to claim 1, characterized in that, The housing includes: A cover body; A base, the base being connected to the cover body to enclose the receiving cavity, and the mounting member being fixedly connected to the base.
6. The actuating motor according to claim 5, characterized in that, The base includes a plate-shaped body and an extension portion, the extension portion extending from the circumferential edge of the plate-shaped body towards the cover body, and the mounting member is fixedly connected to the corner of the extension portion.
7. The actuating motor according to claim 1, characterized in that, The magnetostrictive element includes a first magnetostrictive element and a second magnetostrictive element, and the first magnetostrictive element and the second magnetostrictive element are arranged in central symmetry about the center of symmetry of the housing.
8. The actuating motor according to claim 1, characterized in that, The magnetostrictive element includes a third magnetostrictive element and a fourth magnetostrictive element, and the straight line formed by the connection position of the third magnetostrictive element and the housing and the straight line formed by the connection position of the fourth magnetostrictive element and the housing are perpendicular to each other.
9. The actuating motor according to claim 1, characterized in that, Comprising: A first elastic sheet, the first elastic sheet being connected between the base body and the inner wall of the receiving cavity; A second elastic sheet, the second elastic sheet being arranged at an interval from the first elastic sheet along the depth direction of the receiving cavity, the second elastic sheet being connected between the base body and the inner wall of the receiving cavity, and the magnetostrictive element drives the base body to translate along the depth direction.
10. The actuating motor according to claim 9, characterized in that, The base body includes a plurality of wire-winding posts. Each of the coils respectively includes an input end and an output end. After the input end and the output end wind out of the magnetostrictive member, they are wound around different wire-winding posts, and the input end and the output end are respectively electrically connected to the second elastic sheet. The actuating motor includes an input terminal and an output terminal. The input terminal and the output terminal are respectively arranged at the bottom of the housing and at least partially located outside the accommodating cavity. The input terminal is electrically connected to the input end of the coil through the second elastic sheet, and the output terminal is electrically connected to the output end of the coil through the second elastic sheet.
11. The actuating motor according to claim 1, wherein, The base body includes an annular cavity for assembling the lens.
12. A camera module, characterized in that, Comprising: A lens; The actuating motor according to any one of claims 1-11, wherein the lens is connected to the base body.
13. An electronic device, characterized in that, Comprising the camera module according to claim 12.
Citation Information
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Camera module and terminal equipment
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