Motor, camera module and electronic equipment
By setting an elastic buffer structure at the end of the winding structure away from the substrate, the problem of magnet impact on the coil and winding structure when electronic devices are dropped is solved, improving the reliability and space utilization of the motor and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-03-24
AI Technical Summary
In the prior art, impacts caused by drops or other reasons can easily damage the internal components of motors, especially magnets and coils, affecting performance and reliability.
An elastic buffer structure is set at the end of the winding structure away from the base structure, so that it makes contact with the magnet and coil first and absorbs the impact force when they move relative to each other, thereby reducing the direct impact of the magnet on the coil and winding structure.
It improves motor reliability, reduces debris caused by the impact of magnets on the winding structure, protects the performance of devices such as photosensitive elements, and saves materials and costs in a compact space.
Smart Images
Figure CN224037170U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] Embodiments of the present application relate to the technical field of electronic devices, and in particular to a motor, a camera module and an electronic device. BACKGROUND
[0002] As a driving device, the motor is widely used in electronic devices such as mobile phones and tablet computers.
[0003] In some related technologies, the motor can include a magnet, a coil, and two structural members movably connected, the magnet and the coil are respectively arranged on the two structural members, and the relative movement of the two structural members can be driven by the magnetic force generated between the magnet and the coil. However, in the related technology, the impact on the electronic device caused by the drop of the electronic device and the like is easy to affect the performance of the device at the motor. UTILITY MODEL CONTENT
[0004] Embodiments of the present application provide a motor, a camera module and an electronic device, and the performance of the motor is not easily affected by the impact on the electronic device.
[0005] The first aspect of the embodiments of the present application provides a motor, which includes a first structural member, a second structural member, a coil and a magnet. The first structural member is movably connected with the second structural member. The second structural member includes a base structure and a winding structure, one end of the winding structure is connected with the base structure, the other end of the winding structure away from the base structure is provided with an elastic buffer structure, and at least part of the coil is wound on the winding structure. The magnet is fixedly arranged on the second structural member and opposite to the coil, and the magnet is located between the elastic buffer structure and the second structural member.
[0006] The motor provided by the embodiments of the present application sets the elastic buffer structure at the other end of the winding structure away from the base structure, so that the elastic buffer structure can absorb the impact force of the magnet after the electronic device is impacted, and then the impact of the magnet on the coil and the winding structure can be reduced, so that the magnet, the coil and the winding structure and other components are not easy to be damaged due to the impact of the magnet, and the reliability of the motor can be improved.
[0007] In addition, after the impact force between the magnet and the winding structure is reduced due to the absorption of the elastic buffer structure, the motor is not easy to produce debris due to the impact of the magnet and the winding structure, and the problem that the performance of the device such as the photosensitive element located at the motor and the performance of the motor are affected due to the impact of the magnet on the winding structure.
[0008] In addition, the elastic buffer structure is arranged at the other end of the winding structure away from the base structure, and the elastic buffer structure is arranged by using the winding structure inside the coil, so that the elastic buffer structure does not need to occupy the space outside the coil, the space utilization rate of the motor is high, and the arrangement of the elastic buffer structure in the motor with relatively compact space is facilitated.
[0009] Further, the elastic buffering structure is arranged at one end of the winding structure away from the base structure and is supported by the winding structure, so that the size of the elastic buffering structure in the height direction of the winding structure is small, which is beneficial to reduce the material of the elastic buffering structure, and further beneficial to reduce the weight and cost.
[0010] In addition, the size of the elastic buffering structure in the height direction of the winding structure is small, so that the elastic buffering structure made of a material with good elasticity is not prone to swing or shake, and the problem that the normal relative movement of the magnet and the coil is affected due to the swing or shake of the elastic buffering structure is not prone to occur. The elastic buffering structure is not prone to swing or shake, which can also make the reliability of the buffering of the elastic buffering structure to the impact of the magnet better.
[0011] In a possible implementation, the elastic buffering structure includes a first end and a second end, the first end is connected with the winding structure, and the second end is one end of the elastic buffering structure away from the winding structure, and the second end protrudes from the side of the coil away from the base structure.
[0012] In this way, when the magnet moves to the side close to the base structure, the elastic buffering structure contacts the magnet before the coil, so as to buffer the impact force of the magnet before the magnet contacts the coil, which is beneficial to the protection of the coil.
[0013] In a possible implementation, the first end is located between the side of the coil close to the base structure and the side of the coil away from the base structure, part of the coil is wound on the winding structure, and part of the coil is wound on the elastic buffering structure.
[0014] In this way, while the better buffering of the magnet can be achieved, the magnet and the coil have a smaller spacing, so that the magnet and the coil can provide a better driving effect.
[0015] In a possible implementation, the size of the coil in the height direction of the winding structure is greater than the height of the winding structure and smaller than the sum of the height of the winding structure and the size of the elastic buffering structure in the height direction of the winding structure.
[0016] In this way, the first end is located between the side of the coil close to the base structure and the side of the coil away from the base structure, the second end protrudes from the side of the coil away from the base structure, and the density of the coil wound on the winding structure and the elastic buffering structure is greater.
[0017] The second end protrudes from the side of the coil away from the base structure, which can buffer the impact force of the magnet before the magnet contacts the coil, which is beneficial to the protection of the coil.
[0018] The first end is located between a side of the coil close to the base structure and a side of the coil away from the base structure, so that the magnet and the coil have a small spacing while achieving good buffering of the magnet, and the magnet and the coil can provide a good driving effect.
[0019] In a possible implementation, a projection of the winding structure along a height direction of the winding structure covers a projection of the elastic buffering structure along the height direction of the winding structure.
[0020] In this way, the coil can be sleeved on the outer side of the winding structure from the side of the elastic buffering structure away from the winding structure.
[0021] In a possible implementation, an end face of the end of the elastic buffering structure away from the winding structure has a groove structure.
[0022] In this way, the groove structure can provide a space for deformation of the elastic buffering structure, so that the elastic buffering structure can have a large deformation amount and has a good buffering effect on the impact of the magnet.
[0023] In a possible implementation, the winding structure includes first and second column bodies arranged at intervals, and the first and second column bodies are arranged on the inner side of the coil, and at least part of the coil is wound around the first and second column bodies. The elastic buffering structure includes first and second elastic buffering units, one end of the first column body is connected to the base structure, the first elastic buffering unit is arranged at the end of the first column body away from the base structure, one end of the second column body is connected to the base structure, the second elastic buffering unit is arranged at the end of the second column body away from the base structure, and the first and second elastic buffering units are arranged at intervals.
[0024] In this way, the use of materials of the winding structure and the elastic buffering structure can be reduced, thereby facilitating weight reduction and cost reduction. In addition, the interval between the first and second elastic buffering units can provide a space for deformation of the elastic buffering structure, and the first and second elastic buffering units arranged at intervals can make the elastic buffering structure have a large deformation amount and have a good buffering effect on the impact of the magnet.
[0025] In a possible implementation, the winding structure further includes a third column body arranged on the inner side of the coil, and the third column body is arranged at intervals between the first and second column bodies. The elastic buffering structure further includes a third elastic buffering unit, one end of the third column body is connected to the base structure, and the third elastic buffering unit is arranged at the end of the third column body away from the base structure, and the third elastic buffering unit is arranged at intervals between the first and second elastic buffering units.
[0026] In this way, when the span between the first column and the second column is large, the third column and the third elastic buffering unit are arranged to buffer the impact of the magnet between the first elastic buffering unit and the second elastic buffering unit, and the elastic buffering structure has a good buffering effect on the impact of the magnet. In addition, the third elastic buffering unit is arranged between the first elastic buffering unit and the second elastic buffering unit, and the spacing between the third elastic buffering unit and the first elastic buffering unit and the second elastic buffering unit provides a space for the deformation of the elastic buffering structure, so that the elastic buffering structure has a large deformation amount and a good buffering effect on the impact of the magnet.
[0027] In a possible implementation, the elastic modulus of the elastic buffering structure is less than or equal to 1 GPa.
[0028] In this way, the elastic buffering structure has good elasticity, which can well absorb the impact force of the magnet, thereby significantly reducing the impact of the magnet on the coil and the winding structure, so that the magnet, the coil and the winding structure and other components are not easily damaged by the impact of the magnet, and the motor has good reliability. In addition, the elastic buffering structure can well absorb the impact force of the magnet, so that the impact force between the magnet and the winding structure is small, and the motor is not easily damaged by the impact of the magnet and the winding structure, and the problem of affecting the performance of the light-sensitive element and other devices located at the motor and the performance of the motor due to the impact of the magnet on the winding structure does not easily occur.
[0029] In a possible implementation, the elastic modulus of the elastic buffering structure is greater than or equal to 50 MPa.
[0030] In this way, the elastic buffering structure can maintain its shape when not subjected to the impact of the magnet, and the reliability of the elastic buffering structure in buffering the impact of the magnet is good. In addition, the problem of affecting the normal relative movement of the magnet and the coil due to the swing or swing of the elastic buffering structure does not easily occur. In addition, the elastic buffering structure can provide good support for the coil wound thereon, facilitating the winding of the coil and the elastic buffering structure to be relatively stable.
[0031] In a possible implementation, the elongation at break of the elastic buffering structure is greater than or equal to 10%.
[0032] In this way, the elastic buffering structure is not easily damaged by the impact of the magnet, and the problem of affecting the performance of the light-sensitive element and other devices located at the motor and the performance of the motor due to the impact of the magnet does not easily occur.
[0033] In a possible implementation, the elongation at break of the elastic buffering structure is less than or equal to 80%.
[0034] In this way, the elastic buffering structure can keep the shape when not impacted by the magnet, and the reliability of the elastic buffering structure in buffering the impact of the magnet is good. In addition, the elastic buffering structure is not prone to swinging or shaking, which affects the normal relative movement of the magnet and the coil. In addition, the elastic buffering structure can provide good support for the coil wound thereon, facilitating the winding of the coil and the elastic buffering structure to be more stable.
[0035] In a possible implementation, the elastic modulus of the winding structure is greater than or equal to 2 GPa.
[0036] In this way, the winding structure is not prone to deformation, facilitating the stable support and fixation of the coil.
[0037] In a possible implementation, the elastic buffering structure and the winding structure are integrated.
[0038] In this way, the relative position accuracy of the elastic buffering structure and the winding structure is high, facilitating the reduction of the influence of the elastic buffering structure on the surrounding components.
[0039] In a possible implementation, the elastic buffering structure is bonded to the surface of the winding structure.
[0040] In this way, it is convenient to provide the elastic buffering structure on the surface of the winding structure, and the cost of providing the elastic buffering structure is low.
[0041] The second aspect of the embodiment of the present application provides a camera module, which comprises a lens and a motor in any of the above embodiments. The lens is connected to the first structure of the motor or the second structure of the motor.
[0042] The third aspect of the embodiment of the present application provides an electronic device, which comprises a shell and a motor in any of the above embodiments. The motor is arranged in the shell.
[0043] The fourth aspect of the embodiment of the present application provides an electronic device, which comprises a shell and a camera module in any of the above embodiments. The camera module is arranged in the shell. BRIEF DESCRIPTION OF DRAWINGS
[0044] Figure 1 An explosion schematic diagram of an electronic device provided by the embodiment of the present application;
[0045] Figure 2 A cross-sectional schematic diagram of a camera module provided by the embodiment of the present application;
[0046] Figure 3 An explosion schematic diagram of a motor provided by the embodiment of the present application;
[0047] Figure 4 AFigure 3 One schematic diagram of the motor provided in the present application;
[0048] Figure 5 One schematic diagram of the motor provided in the present application; Figure 3 Another schematic diagram of the motor provided in the present application;
[0049] Figure 6 Another schematic diagram of the motor provided in the present application;
[0050] Figure 7 Another schematic diagram of the motor provided in the present application; Figure 6 One schematic diagram of the motor provided in the present application;
[0051] Figure 8 Another schematic diagram of the motor provided in the present application; Figure 6 Another schematic diagram of the motor provided in the present application;
[0052] Figure 9 Another schematic diagram of the motor provided in the present application.
[0053] Explanation of reference signs:
[0054] 10, housing; 11, middle frame; 12, back cover; 20, display screen; 30, camera module; 31, camera motor; 32, lens; 33, photosensitive element; 34, module circuit board; 40, mainboard; 50, battery; 60, vibration motor;
[0055] 100, first structural member;
[0056] 200, second structural member; 210, base structure; 220, winding structure; 221, first column; 222, second column; 223, third column;
[0057] 300, elastic buffering structure; 310, first elastic buffering unit; 320, second elastic buffering unit; 330, third elastic buffering unit;
[0058] 400, coil;
[0059] 500, magnet;
[0060] 600, slot structure; 610, first slot structure; 620, second slot structure; 630, third slot structure. DETAILED DESCRIPTION
[0061] The terms used in the embodiment part of the present application are only used for explaining the specific embodiments of the present application, and are not intended to limit the present application, and the embodiment of the present application will be described in detail below in conjunction with the drawings.
[0062] The electronic device provided in the embodiments of the present application can include, but is not limited to, a mobile phone, a tablet computer, a notebook computer, an ultra-mobile personal computer (UMPC), a handheld computer, a walkie-talkie, a netbook, a point of sales (POS) machine, a personal digital assistant (PDA), a wearable device, a virtual reality device, and the like. The electronic device can be a foldable device, for example, the electronic device can be a foldable mobile phone. The electronic device can also be a non-foldable device, for example, the electronic device can be a straight mobile phone.
[0063] Figure 1 An exploded schematic view of an electronic device provided in the embodiments of the present application.
[0064] As shown in Figure 1 In the embodiments of the present application, the electronic device includes a housing 10, a mainboard 40, and a battery 50. The housing 10 is used to form a device mounting cavity. The mainboard 40 and the battery 50 are arranged in the device mounting cavity. The battery 50 is electrically connected to the mainboard 40. The battery 50 can be used to supply power to the mainboard 40. The housing 10 can be used to carry and protect the devices arranged in the device mounting cavity, such as the battery 50 and the mainboard 40.
[0065] In some examples, the electronic device can further include a display screen 20. The display screen 20 is arranged on the housing 10. The display screen 20 and the housing 10 are used to form the device mounting cavity. The battery 50 and the mainboard 40 are arranged in the device mounting cavity formed by the display screen 20 and the housing 10.
[0066] In other examples, the electronic device can include the housing 10 but not the display screen 20. The housing 10 can form the device mounting cavity by itself. The battery 50 and the mainboard 40 are arranged in the device mounting cavity formed by the housing 10.
[0067] The following will be described by taking an example in which the electronic device includes the display screen 20 and the housing 10.
[0068] As shown in Figure 1 In some examples, the electronic device can further include a camera module 30. The camera module 30 is arranged on the housing 10. At least a part of the camera module 30 is located in the device mounting cavity. The camera module 30 is electrically connected to the mainboard 40. The camera module 30 is used to capture images.
[0069] In some examples, the electronic device can further include a vibration motor 60 disposed in the housing 10, the vibration motor 60 can be located in the device mounting cavity, the vibration motor 60 can be electrically connected to the mainboard 40, and the vibration motor 60 can be used to generate vibration of the electronic device. The vibration generated by the vibration motor 60 can realize information reminding and other functions.
[0070] In some examples, the electronic device includes the camera module 30 and the vibration motor 60.
[0071] In other examples, the electronic device includes the camera module 30 but does not include the vibration motor 60.
[0072] In yet other examples, the electronic device includes the vibration motor 60 but does not include the camera module 30.
[0073] As shown in Figure 1 , the housing 10 can include a middle frame 11 and a back cover 12, the back cover 12 and the display screen 20 are respectively connected to two sides of the middle frame 11, the back cover 12, the middle frame 11 and the display screen 20 surround to form a device mounting cavity, the mainboard 40 and the battery 50 can be fixed with the middle frame 11, and the middle frame 11 can bear the mainboard 40 and the battery 50.
[0074] In some examples in which the electronic device includes the camera module 30, the camera module 30 can be fixed with the mainboard 40 or the middle frame 11, and the camera module 30 can be borne by the mainboard 40 or the middle frame 11.
[0075] In some examples in which the electronic device includes the vibration motor 60, the vibration motor 60 can be fixed with the middle frame 11, and the vibration motor 60 can be borne by the middle frame 11.
[0076] In some examples, the middle frame 11 and the back cover 12 can be a split structure, and the middle frame 11 and the back cover 12 can be fixedly connected by bonding, clamping, fastener connection or the like.
[0077] In other examples, the middle frame 11 and the back cover 12 can also be an integral structure, that is, the middle frame 11 and the back cover 12 can be integrated into one structural member.
[0078] Figure 2 A cross-sectional view of a camera module provided by an embodiment of the present application.
[0079] Exemplarily, the camera module 30 can include a lens 32, a camera motor 31, a module circuit board 34, and a photosensitive element 33. The module circuit board 34 is electrically connected to the main board 40. The module circuit board 34 can be fixed with the main board 40 or the middle frame 11. The photosensitive element 33 is arranged on the module circuit board 34 and is electrically connected to the module circuit board 34. The lens 32 is arranged on the module circuit board 34 through the camera motor 31. The photosensitive element 33 is located on the image side of the lens 32. Light from the object side of the lens 32 passes through the lens 32 and then is incident on the photosensitive element 33, so that the photosensitive element 33 can collect light from the object side of the lens 32 to realize a shooting function. The camera motor 31 is configured to drive the lens 32 to move, so as to realize functions such as auto focus (AF), zoom, optical image stabilization (OIS), and the like.
[0080] The image side of the lens 32 refers to a side on which an image of a subject is located with the lens 32 as a boundary.
[0081] The object side of the lens 32 refers to a side on which a subject is located with the lens 32 as a boundary.
[0082] The photosensitive element 33 can also be referred to as an image sensor. The photosensitive element 33 can be a charge coupled device (CCD), a complementary metal-oxide semiconductor (CMOS), or another device capable of realizing a photoelectric conversion function.
[0083] The motor provided in the embodiments of the present application can include, but is not limited to, the vibration motor 60 and the camera motor 31 described above.
[0084] Figure 3 An explosion schematic diagram of a motor provided in the embodiments of the present application is shown in FIG. 6. Figure 4 A motor provided in the embodiments of the present application is shown in FIG. 7. Figure 3 A motor provided in the embodiments of the present application is shown in FIG. 7. In the figure, the x direction is a first direction, the y direction is a second direction, and the z direction is a third direction. The third direction is a height direction of the winding structure 220. The first direction and the second direction are both perpendicular to the third direction, and the first direction is perpendicular to the second direction.
[0085] As shown in FIG. 8, the motor provided in the embodiments of the present application can include a motor housing 210, a winding structure 220, a stator 230, and a rotor 240. Figure 3 、 Figure 4As shown, in the embodiment of the present application, the motor includes a first structural member 100, a second structural member 200, a magnet 500 and a coil 400. The first structural member 100 is movably connected with the second structural member 200. The coil 400 is fixedly arranged on the first structural member 100. The magnet 500 is fixedly arranged on the second structural member 200 and opposite to the coil 400. The relative movement of the first structural member 100 and the second structural member 200 can be driven by the magnetic force generated between the magnet 500 and the coil 400. For example, as shown in the following figure, the first structural member 100 and the second structural member 200 can be movably connected by a sliding shaft structure, a ball structure, a suspension wire structure, a spring leaf structure or the like. Figure 3 As shown, under the action of the magnetic force generated by the magnet 500 and the coil 400, the first structural member 100 can move relative to the second structural member 200 along the second direction.
[0086] For example, the first structural member 100 and the second structural member 200 can be movably connected by at least one of a sliding shaft structure, a ball structure, a suspension wire structure, a spring leaf structure or the like.
[0087] When the motor is a vibration motor 60, the first structural member 100 and the second structural member 200 can move relative to each other under the action of the magnetic force generated by the magnet 500 and the coil 400, thereby causing the electronic device to vibrate. At this time, the first structural member 100, the second structural member 200, the magnet 500 and the coil 400 can be used to realize the vibration function of the electronic device.
[0088] In some examples in which the motor is a camera motor 31, one of the first structural member 100 and the second structural member 200 can be connected with a lens 32, and the other of the first structural member 100 and the second structural member 200 can be connected with a module circuit board 34. Under the action of the magnetic force generated by the magnet 500 and the coil 400, the lens 32 can be driven by the first structural member 100 or the second structural member 200 to move along the optical axis direction of the lens 32, so as to realize the focusing function such as auto-focusing and zooming. At this time, the first structural member 100, the second structural member 200, the magnet 500 and the coil 400 can be used to realize the focusing function such as auto-focusing and zooming of the camera module 30.
[0089] In some examples in which the motor is a camera motor 31, one of the first structural member 100 and the second structural member 200 can be connected with a lens 32, and the other of the first structural member 100 and the second structural member 200 can be connected with a module circuit board 34. Under the action of the magnetic force generated by the magnet 500 and the coil 400, the relative movement of the first structural member 100 and the second structural member 200 can drive the relative movement of the lens 32 and a photosensitive element 33, so as to compensate and offset the shake of the camera module 30, thereby realizing the optical anti-shake function. At this time, the first structural member 100, the second structural member 200, the magnet 500 and the coil 400 can be used to realize the optical anti-shake function of the camera module 30.
[0090] In some examples in which the motor is the camera head motor 31, the camera module 30 can be a periscopic camera module, and the camera module 30 further comprises a light path conversion component located on the object side of the lens 32, the light path conversion component being used for folding and turning of the light path. For example, the light path conversion component can be a prism or a mirror. One of the first structure 100 and the second structure 200 can be connected with the lens 32, and the other of the first structure 100 and the second structure 200 can be connected with the light path conversion component. Under the action of the magnetic force generated by the magnet 500 and the coil 400, the relative movement of the first structure 100 and the second structure 200 can drive the relative movement of the lens 32 and the light path conversion component, so as to compensate and offset the shake of the camera module 30, thereby realizing the optical anti-shake function. At this time, the first structure 100, the second structure 200, the magnet 500 and the coil 400 can be used to realize the optical anti-shake function of the camera module 30.
[0091] For example, the second structure 200 comprises a base structure 210 and a winding structure 220, one end of the winding structure 220 being connected with the base structure 210, the winding structure 220 being located between the base structure 210 and the magnet 500, and the winding structure 220 being used for winding of the coil 400, so as to realize the fixation of the coil 400 and the second structure 200.
[0092] In some possible embodiments, the elastic modulus of the winding structure 220 is greater than or equal to 2 GPa.
[0093] In this way, the winding structure 220 is not easy to deform, and it is convenient to realize the relatively stable support and fixation of the coil 400.
[0094] For example, the elastic modulus of the winding structure 220 can be less than or equal to 10 GPa, at this time, the requirements for the material and process for forming the winding structure 220 are relatively low, and it is convenient to form the winding structure 220 at low cost.
[0095] For example, the elongation at break of the winding structure 220 is greater than or equal to 1% and less than 10%
[0096] In this way, the softness and elasticity of the winding structure 220 are poor and not easy to deform, and it is convenient to realize the relatively stable support and fixation of the coil 400.
[0097] Exemplarily, the material of the winding structure 220 can include one or more of a liquid crystal polymer (LCP), a polyether ether ketone (PEEK), a polyamide (PA), a polycarbonate (PC), a polyphenylene sulfide (PPS), etc.
[0098] Exemplarily, the material of the base structure 210 can be the same as the material of the winding structure 220.
[0099] Exemplarily, the base structure 210 and the winding structure 220 can be an integrated structure. For example, the base structure 210 and the winding structure 220 can be integrally formed by injection molding.
[0100] In the related art, the coil is wound on the winding structure, and there is no other structure between the winding structure and the magnet. In the process of falling of the electronic device, performing a drum test, etc., the electronic device will be impacted by the ground, the drum and other structures. After the electronic device is impacted, the magnet will directly impact the winding structure and the coil. Since the elasticity of the winding structure is poor, the magnet directly impacting the winding structure and the coil is easy to cause damage to the magnet, the coil, the winding structure and other components, so that the reliability of the motor is poor. For example, the magnet is easy to break, surface damage, etc. due to the excessive impact force between the magnet and the winding structure. For another example, the coil is easy to be damaged due to the large impact force between the corner position of the magnet and the winding structure, and then problems such as open circuit, short circuit, etc. occur. In addition, the motor is also easy to produce debris due to the direct impact of the magnet and the winding structure. The debris falling on the motor is easy to affect the performance of the light sensing element and other devices located at the motor, and the performance of the motor. For example, when the motor is a camera motor, the debris produced by the winding structure due to the impact of the magnet falls on the light sensing element, lens and other components of the camera module, which is easy to cause problems such as black shadow, black spot, etc. in the imaging of the camera module.
[0101] As shown in FIGS. 1, 2 and 3, the motor 100 includes a base structure 200, a winding structure 220, a coil 400 and a magnet 500. Figure 3 、 Figure 4 Based on this, in the embodiments of the present application, the winding structure 220 is provided with an elastic buffer structure 300 at one end away from the base structure 210, at least part of the coil 400 is wound on the winding structure 220, and the magnet 500 is located between the elastic buffer structure 300 and the second structure 200.
[0102] In this way, by arranging the elastic buffering structure 300 at the end of the winding structure 220 away from the base structure 210, when the electronic device is impacted, the elastic buffering structure 300 can absorb the impact force of the magnet 500, and further can reduce the impact of the magnet 500 on the coil 400 and the winding structure 220, so that the magnet 500, the coil 400 and the winding structure 220 and other components are less likely to be damaged due to the impact of the magnet 500, and the reliability of the motor is improved.
[0103] In addition, after the impact force between the magnet 500 and the winding structure 220 is reduced due to the absorption of the elastic buffering structure 300, the motor is less likely to generate debris due to the impact of the magnet 500 and the winding structure 220, and is less likely to have problems that the performance of the light-sensitive element 33 and other devices located at the motor, and the performance of the motor are affected due to the impact of the magnet 500 on the winding structure 220.
[0104] In addition, the elastic buffering structure 300 is arranged at the end of the winding structure 220 away from the base structure 210, and the elastic buffering structure 300 is arranged by using the winding structure 220 inside the coil 400, so that the elastic buffering structure 300 does not need to occupy the space outside the coil 400, the space utilization rate of the motor is high, and the arrangement of the elastic buffering structure 300 in the motor with relatively compact space is facilitated.
[0105] Further, the elastic buffering structure 300 is arranged at the end of the winding structure 220 away from the base structure 210 and is supported by the winding structure 220, so that the size of the elastic buffering structure 300 in the height direction of the winding structure 220 is small, which facilitates the reduction of the material of the elastic buffering structure 300, and further facilitates the weight reduction and cost reduction.
[0106] In addition, the size of the elastic buffering structure 300 in the height direction of the winding structure 220 is small, so that when a material with good elasticity is selected to manufacture the elastic buffering structure 300, the elastic buffering structure 300 with elasticity is less likely to swing or shake, and is less likely to have problems that the normal relative movement of the magnet 500 and the coil 400 is affected due to the swing or shake of the elastic buffering structure 300. The elastic buffering structure 300 is less likely to swing or shake, and the reliability of the buffering of the elastic buffering structure 300 to the impact of the magnet 500 is better.
[0107] Figure 5 For Figure 3 Another schematic view of the motor provided in the present application is shown.
[0108] As Figure 5 shown, and referring to Figure 4In some possible embodiments, the elastic buffering structure 300 comprises a first end and a second end, the first end is connected with the winding structure 220, and the second end is an end of the elastic buffering structure 300 away from the winding structure 220, and the second end protrudes from a side of the coil 400 away from the base structure 210.
[0109] In this way, when the magnet 500 moves towards the side close to the base structure 210, the elastic buffering structure 300 contacts the magnet 500 before the coil 400, and the impact force of the magnet 500 can be buffered before the magnet 500 contacts the coil 400, thereby facilitating the protection of the coil 400.
[0110] For example, the size of the coil 400 in the height direction of the winding structure 220 is less than the sum of the height of the winding structure 220 and the size of the elastic buffering structure 300 in the height direction of the winding structure 220, so that the second end protrudes from the side of the coil 400 away from the base structure 210, thereby facilitating the buffering of the impact force of the magnet 500 before the magnet 500 contacts the coil 400.
[0111] In some possible embodiments, the first end is located between the side of the coil 400 close to the base structure 210 and the side of the coil 400 away from the base structure 210, a part of the coil 400 is wound around the winding structure 220, and a part of the coil 400 is wound around the elastic buffering structure 300.
[0112] In this way, while better buffering of the magnet 500 can be achieved, the magnet 500 and the coil 400 have a smaller spacing, so that the magnet 500 and the coil 400 can provide a better driving effect.
[0113] The first end is located between the side of the coil 400 close to the base structure 210 and the side of the coil 400 away from the base structure 210, and the second end protrudes from the side of the coil 400 away from the base structure 210, so that better buffering of the magnet 500 and better protection of the coil 400 can be achieved while the magnet 500 and the coil 400 have a smaller spacing.
[0114] In some possible embodiments, the size of the coil 400 in the height direction of the winding structure 220 is greater than the height of the winding structure 220 and less than the sum of the height of the winding structure 220 and the size of the elastic buffering structure 300 in the height direction of the winding structure 220.
[0115] In this way, the first end is located between the side of the coil 400 close to the base structure 210 and the side of the coil 400 away from the base structure 210, and the second end protrudes from the side of the coil 400 away from the base structure 210, so that the coil 400 has a large winding density on the winding structure 220 and the elastic buffer structure 300. The second end protruding from the side of the coil 400 away from the base structure 210 can buffer the impact force of the magnet 500 before the magnet 500 contacts the coil 400, thereby protecting the coil 400. The first end being located between the side of the coil 400 close to the base structure 210 and the side of the coil 400 away from the base structure 210 can achieve better buffering of the magnet 500 while allowing the magnet 500 and the coil 400 to have a small spacing, so that the magnet 500 and the coil 400 can provide a better driving effect.
[0116] In other possible embodiments, the coil 400 can also be wound on the winding structure 220, and the first end is flush with the side of the coil 400 away from the base structure 210, or the first end is located on the side of the coil 400 away from the base structure 210.
[0117] In some possible embodiments, the projection of the winding structure 220 along the height direction of the winding structure 220 covers the projection of the elastic buffer structure 300 along the height direction of the winding structure 220.
[0118] In this way, the coil 400 is sleeved on the outer side of the winding structure 220 from the side of the elastic buffer structure 300 away from the winding structure 220.
[0119] For example, the end face of the second end can be covered by the elastic buffer structure 300. At this time, the projection of the winding structure 220 along the height direction of the winding structure 220 can completely coincide with the projection of the elastic buffer structure 300 along the height direction of the winding structure 220.
[0120] For example, the end face of the second end can be partially covered by the elastic buffer structure 300 and partially not covered by the elastic buffer structure 300. At this time, the area of the projection of the elastic buffer structure 300 along the height direction of the winding structure 220 can be smaller than the area of the projection of the winding structure 220 along the height direction of the winding structure 220.
[0121] In some possible embodiments, the elastic modulus of the elastic buffer structure 300 is less than or equal to 1 GPa.
[0122] Thus, the elasticity of the elastic buffering structure 300 is good, so that the elastic buffering structure 300 can better absorb the impact force of the magnet 500, thereby significantly reducing the impact of the magnet 500 on the coil 400 and the winding structure 220, so that the magnet 500, the coil 400 and the winding structure 220 and other components are not easy to be damaged due to the impact of the magnet 500, and the motor can have better reliability. In addition, the elastic buffering structure 300 can better absorb the impact force of the magnet 500, so that the impact force between the magnet 500 and the winding structure 220 is small, and the motor is not easy to produce debris due to the impact of the magnet 500 and the winding structure 220, and the problem that the performance of the light-sensitive element 33 and other devices located at the motor and the performance of the motor are affected due to the impact of the magnet 500 on the winding structure 220.
[0123] In some possible embodiments, the elastic modulus of the elastic buffering structure 300 is greater than or equal to 50 MPa.
[0124] Thus, it is beneficial for the elastic buffering structure 300 to maintain the shape when not impacted by the magnet 500, and the reliability of the buffering of the elastic buffering structure 300 to the impact of the magnet 500 is good. In addition, it is also not easy to appear the problem that the normal relative movement of the magnet 500 and the coil 400 is affected due to the swing or swing of the elastic buffering structure 300. In addition, the elastic buffering structure 300 can provide better support for the coil 400 wound on the elastic buffering structure 300, and facilitate the winding of the coil 400 and the elastic buffering structure 300 to be more stable.
[0125] In some possible embodiments, the breaking elongation of the elastic buffering structure 300 is greater than or equal to 10%.
[0126] Thus, the elastic buffering structure 300 is not easy to produce debris due to the impact of the magnet 500, and the problem that the performance of the light-sensitive element 33 and other devices located at the motor and the performance of the motor are affected due to the impact of the magnet 500.
[0127] For example, the breaking elongation of the elastic buffering structure 300 can include but is not limited to 100%, 150%, 200%, etc.
[0128] In some possible embodiments, the breaking elongation of the elastic buffering structure 300 is less than or equal to 80%.
[0129] In this way, the elastic buffering structure 300 can keep the shape when not impacted by the magnet 500, and the reliability of the elastic buffering structure 300 in buffering the impact of the magnet 500 is good. In addition, the elastic buffering structure 300 is not prone to swinging or shaking, which affects the normal relative movement of the magnet 500 and the coil 400. In addition, the elastic buffering structure 300 can provide good support for the coil 400 wound thereon, facilitating the winding of the coil 400 and the elastic buffering structure 300 to be more stable.
[0130] For example, the elongation at break of the elastic buffering structure 300 can include, but is not limited to, 20%, 30%, 40%, 50%, etc.
[0131] For example, the material of the elastic buffering structure 300 can include one or more of silicone, rubber, polyurethane, polyformaldehyde (POM), etc.
[0132] In some possible embodiments, the elastic buffering structure 300 and the winding structure 220 are integrated.
[0133] In this way, the relative position accuracy of the elastic buffering structure 300 and the winding structure 220 is high, which facilitates reducing the impact of the elastic buffering structure 300 on surrounding components.
[0134] For example, the elastic buffering structure 300 and the winding structure 220 can be formed by secondary injection molding.
[0135] In some possible embodiments, the elastic buffering structure 300 is bonded to the surface of the winding structure 220.
[0136] In this way, it is more convenient to provide the elastic buffering structure 300 on the surface of the winding structure 220, and the cost of providing the elastic buffering structure 300 is low.
[0137] For example, in the height direction of the winding structure 220, the projection of the coil 400 is a racetrack pattern with the length direction as the first direction and the width direction as the second direction.
[0138] In some possible embodiments, the winding structure 220 is a strip-shaped columnar structure. In the height direction of the winding structure 220, the projection of the winding structure 220 is a “I” sub-pattern with the length direction as the first direction and the width direction as the second direction, and the projection of the elastic buffering structure 300 is a “I” sub-pattern with the length direction as the first direction and the width direction as the second direction.
[0139] Figure 6 Another explosion schematic diagram of a motor provided by an embodiment of the present application, Figure 7 For Figure 6A schematic view of a motor provided in the present disclosure, Figure 8 To Figure 6 Another schematic view of a motor provided in the present disclosure.
[0140] As Figures 6-8 shown, in some possible embodiments, the winding structure 220 comprises a first column 221 and a second column 222 which are spaced apart, and the first column 221 and the second column 222 are both arranged inside the coil 400, and at least part of the coil 400 is wound around the first column 221 and the second column 222. The elastic buffering structure 300 comprises a first elastic buffering unit 310 and a second elastic buffering unit 320, one end of the first column 221 is connected to the base structure 210, the first elastic buffering unit 310 is arranged at the end of the first column 221 which is away from the base structure 210, one end of the second column 222 is connected to the base structure 210, and the second elastic buffering unit 320 is arranged at the end of the second column 222 which is away from the base structure 210, and the first elastic buffering unit 310 and the second elastic buffering unit 320 are spaced apart.
[0141] In this way, the use of materials of the winding structure 220 and the elastic buffering structure 300 can be reduced, thereby facilitating weight reduction and cost reduction. In addition, the space between the first elastic buffering unit 310 and the second elastic buffering unit 320 can provide a deformation space for the elastic buffering structure 300, and the first elastic buffering unit 310 and the second elastic buffering unit 320 which are spaced apart can make the elastic buffering structure 300 have a larger deformation amount, and the buffering effect of the impact of the magnet 500 is better.
[0142] For example, part of the coil 400 is wound around the first column 221 and the second column 222, and part of the coil 400 is wound around the first elastic buffering unit 310 and the second elastic buffering unit 320.
[0143] For example, the first column 221 and the second column 222 are spaced apart in the first direction.
[0144] For example, the first column 221 and the second column 222 are in a cylindrical structure. The first elastic buffering unit 310 and the second elastic buffering unit 320 are in a cylindrical structure.
[0145] In some possible embodiments, the winding structure 220 further comprises a third column 223 which is arranged inside the coil 400, and the third column 223 is spaced apart between the first column 221 and the second column 222. The elastic buffering structure 300 further comprises a third elastic buffering unit 330, one end of the third column 223 is connected to the base structure 210, the third elastic buffering unit 330 is arranged at the end of the third column 223 which is away from the base structure 210, and the third elastic buffering unit 330 is spaced apart between the first elastic buffering unit 310 and the second elastic buffering unit 320.
[0146] In this way, when the span between the first column 221 and the second column 222 is large, the impact of the magnet 500 can be buffered between the first elastic buffering unit 310 and the second elastic buffering unit 320 by arranging the third column 223 and the third elastic buffering unit 330, and the elastic buffering structure 300 has a good buffering effect on the impact of the magnet 500. In addition, the third elastic buffering unit 330 is arranged in the space between the first elastic buffering unit 310 and the second elastic buffering unit 320, and the space between the third elastic buffering unit 330 and the first elastic buffering unit 310 and the second elastic buffering unit 320 can provide a space for the deformation of the elastic buffering structure 300, so that the elastic buffering structure 300 has a large deformation amount and has a good buffering effect on the impact of the magnet 500.
[0147] For example, the first column 221, the second column 222, and the third column 223 are arranged in a row along the first direction.
[0148] For example, the third column 223 is a strip-shaped column structure. In the height direction of the winding structure 220, the projection of the third column 223 is a “1” sub-pattern with the length direction being the first direction and the width direction being the second direction, and the projection of the third elastic buffering unit 330 is a “1” sub-pattern with the length direction being the first direction and the width direction being the second direction, so that the third elastic buffering unit 330 can buffer the impact of the magnet 500 in a larger area.
[0149] Table 1 is a drop simulation comparison table when the camera module adopts the motor and the camera module provided in the related art, and the coil is wound on the winding structure, and there is no other structure between the winding structure and the magnet Figure 6 Table 1 is a drop simulation comparison table when the camera module adopts the motor and the camera module provided in the related art, and the coil is wound on the winding structure, and there is no other structure between the winding structure and the magnet
[0150]
[0151] In Table 1, scheme 1 is a scheme when the camera module 30 adopts the motor in which the coil 400 is wound on the winding structure 220, and there is no other structure between the winding structure 220 and the magnet 500, and scheme 2 is a scheme when the camera module 30 adopts the motor in which the coil 400 is wound on the winding structure 220, and there is the elastic buffering structure 300 between the winding structure 220 and the magnet 500. Figure 6The impact force F1 between the magnet 500 and the winding structure 220 of the motor scheme provided in the present application is greater than the impact force F1 between the magnet 500 and the winding structure 220 of the motor scheme 2, the impact force F2 between the magnet 500 and the coil 400 of the motor scheme 1 is greater than the impact force F2 between the magnet 500 and the coil 400 of the motor scheme 2. When the camera module 30 falls from each direction, the impact force F1 between the magnet 500 and the winding structure 220 of the motor scheme 2 is smaller than that of the motor scheme 1, and the magnet 500 and the winding structure 220 of the motor scheme 2 are less likely to be damaged, and the motor is less likely to produce debris. The impact force F2 between the magnet 500 and the coil 400 of the motor scheme 2 is smaller than that of the motor scheme 1, and the coil 400 of the motor scheme 2 is less likely to be damaged.
[0152] Figure 9 Another schematic diagram of a motor provided in an embodiment of the present application.
[0153] In some possible implementations, the end face of the elastic buffering structure 300 away from the winding structure 220 has a groove structure 600.
[0154] In this way, the groove structure 600 can provide a space for the elastic buffering structure 300 to deform, so that the elastic buffering structure 300 can have a larger deformation amount, and the buffering effect of the impact on the magnet 500 is better.
[0155] In some examples, the end of the elastic buffering structure 300 away from the winding structure 220 has a ring-shaped enclosing wall structure for enclosing the groove structure 600.
[0156] In some examples, the end face of the elastic buffering structure 300 away from the winding structure 220 has a tooth structure, and the interval between two adjacent teeth of the tooth structure is used to form the groove structure 600.
[0157] In some examples, the end face of the elastic buffering structure 300 away from the winding structure 220 has a plurality of spaced protruding structures, and the interval between the plurality of protruding structures is used to form the groove structure 600.
[0158] As Figure 9As shown, in some examples in which the elastic buffering structure 300 includes the first elastic buffering unit 310, the second elastic buffering unit 320, and the third elastic buffering unit 330, the groove structure 600 includes a first groove structure 610 located at an end of the first elastic buffering unit 310 away from the first column 221, a second groove structure 620 located at an end of the second elastic buffering unit 320 away from the second column 222, and a third groove structure 630 located at an end of the third elastic buffering unit 330 away from the third column 223.
[0159] In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically defined.
[0160] The terms "first", "second", "third", "fourth" and the like in the description of the present application and the claims, and the above-described drawings, if any, are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged, where appropriate, so that the embodiments of the present application described herein can be carried out in other than the order shown or described herein. Furthermore, the terms "comprise" and "have", and any variations thereof, are intended to cover non-exclusive inclusion, for example, processes, methods, systems, products, or devices that include a series of steps or units are not necessarily limited to those clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products, or devices.
[0161] The term "a plurality of" herein refers to two or more. The term "and / or" herein is merely used to describe an associated relationship with the associated objects, which means that there can be three relationships, for example, A and / or B, which means that there are three cases, A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects; in the formula, the character " / " represents a "division" relationship between the associated objects.
[0162] It can be understood that the various numbers involved in the embodiments of the present application are only for convenient differentiation, and do not limit the scope of the embodiments of the present application.
[0163] It can be understood that the size of the serial number of each process in the embodiments of the present application does not mean the order of execution, and the execution order of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
Claims
1. A motor, characterized in that, It includes a first structural component (100), a second structural component (200), a coil (400), and a magnet (500); The first structural member (100) is movably connected to the second structural member (200); The second structural component (200) includes a base structure (210) and a winding structure (220). One end of the winding structure (220) is connected to the base structure (210), and an elastic buffer structure (300) is provided at the end of the winding structure (220) away from the base structure (210). At least a portion of the coil (400) is wound around the winding structure (220). The magnet (500) is fixedly disposed on the second structural member (200) and opposite to the coil (400), and the magnet (500) is located between the elastic buffer structure (300) and the second structural member (200).
2. The motor according to claim 1, characterized in that, The elastic buffer structure (300) includes a first end and a second end. The first end is connected to the winding structure (220), and the second end is the end of the elastic buffer structure (300) away from the winding structure (220). The second end protrudes from the side of the coil (400) away from the base structure (210).
3. The motor according to claim 2, characterized in that, The first end is located between the side of the coil (400) close to the base structure (210) and the side of the coil (400) away from the base structure (210), a portion of the coil (400) is wound around the winding structure (220), and a portion of the coil (400) is wound around the elastic buffer structure (300).
4. The motor according to claim 3, characterized in that, The dimension of the coil (400) in the height direction of the winding structure (220) is greater than the height of the winding structure (220) and less than the sum of the height of the winding structure (220) and the dimension of the elastic buffer structure (300) in the height direction of the winding structure (220).
5. The motor according to claim 1, characterized in that, The projection of the winding structure (220) along the height direction of the winding structure (220) covers the projection of the elastic buffer structure (300) along the height direction of the winding structure (220).
6. The motor according to claim 1, characterized in that, The end face of the elastic buffer structure (300) away from the winding structure (220) has a groove structure (600).
7. The motor according to claim 1, characterized in that, The winding structure (220) includes a first column (221) and a second column (222) spaced apart. The first column (221) and the second column (222) are both located inside the coil (400), and at least a portion of the coil (400) is wound around the first column (221) and the second column (222). The elastic buffer structure (300) includes a first elastic buffer unit (310) and a second elastic buffer unit (320). One end of the first column (221) is connected to the base structure (210). The first elastic buffer unit (310) is located at the end of the first column (221) away from the base structure (210). One end of the second column (222) is connected to the base structure (210). The second elastic buffer unit (320) is located at the end of the second column (222) away from the base structure (210). The first elastic buffer unit (310) and the second elastic buffer unit (320) are spaced apart.
8. The motor according to claim 7, characterized in that, The winding structure (220) further includes a third column (223), which is located inside the coil (400) and is spaced between the first column (221) and the second column (222). The elastic buffer structure (300) further includes a third elastic buffer unit (330). One end of the third column (223) is connected to the base structure (210). The third elastic buffer unit (330) is located at the end of the third column (223) away from the base structure (210). The third elastic buffer unit (330) is spaced between the first elastic buffer unit (310) and the second elastic buffer unit (320).
9. The motor according to claim 1, characterized in that, The elastic modulus of the elastic buffer structure (300) is less than or equal to 1 GPa.
10. The motor according to claim 9, characterized in that, The elastic modulus of the elastic buffer structure (300) is greater than or equal to 50 MPa.
11. The motor according to claim 1, characterized in that, The elongation at break of the elastic buffer structure (300) is greater than or equal to 10%.
12. The motor according to claim 11, characterized in that, The elongation at break of the elastic buffer structure (300) is less than or equal to 80%.
13. The motor according to claim 1, characterized in that, The elastic modulus of the winding structure (220) is greater than or equal to 2 GPa.
14. The motor according to any one of claims 1-13, characterized in that, The elastic buffer structure (300) and the winding structure (220) are an integral structure.
15. The motor according to any one of claims 1-13, characterized in that, The elastic buffer structure (300) is bonded to the surface of the winding structure (220).
16. A camera module (30), characterized in that, Includes a lens (32) and a motor as described in any one of claims 1-15, wherein the lens (32) is connected to a first structural member (100) or a second structural member (200) of the motor.
17. An electronic device, characterized in that, It includes a housing (10) and a motor as described in any one of claims 1-15, the motor being disposed in the housing (10).
18. An electronic device, characterized in that, It includes a housing (10) and a camera module (30) as described in claim 16, the camera module (30) being disposed on the housing (10).