Thin motor, camera and electronic equipment

Abstract

The utility model relates to a thin motor, a camera and an electronic device, the thin motor comprises a housing, a focusing module and an anti-shake module, and the focusing module comprises a focusing carrier and a focusing power unit. The anti-shake carrier is movably connected with the focusing carrier through the balls, the anti-shake power unit drives the anti-shake carrier to move relative to the focusing carrier, the anti-shake power unit comprises an X-axis power unit and two Y-axis power units, and each Y-axis power unit comprises a Hall integrated circuit. The anti-shake module innovatively adopts single-layer ball connection, so that the height of the motor is reduced, the assembly procedures and the number of components are reduced, the cost is reduced, and the competitiveness is improved. In order to avoid X-axis and Y-axis crosstalk, the Y-axis power unit adopts a double-coil, double-magnet and double-IC design, a Hall integrated circuit is used for measuring the relative distance, the rotation angle is calculated according to the relative distance, current compensation is adjusted, crosstalk is effectively solved, stability and high efficiency of anti-shake are guaranteed, and a clear picture is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the motor field, and specifically, especially, a kind of thin motor, camera and electronic equipment. BACKGROUND

[0002] In today's era of rapid development of science and technology, the widespread popularity of electronic devices makes the market demand of camera motor presents the trend of increasing. At the same time, consumers' expectations for product performance are also increasingly high, which not only reflects the diversified demand for camera motor function, but also focuses on the light and thin characteristics of the product. At present, the market puts forward more stringent requirements for camera motor, which not only needs to have three-axis closed-loop function to realize accurate motion control, but also urgently needs to realize thin design to meet the integration needs of various light and thin electronic devices.

[0003] Traditional ball-type motor mostly adopts double-layer ball structure. In this structure, each layer of ball is provided with a guide groove, and the guide grooves of the two layers of balls are arranged orthogonally. This carefully designed structure can indeed effectively avoid the cross-talk phenomenon between X and Y axes, thereby providing reliable protection for the anti-shake effect. However, this traditional structure inevitably has some limitations. On the one hand, due to its relatively complex structure, it involves many parts and delicate assembly process, resulting in high production cost. On the other hand, the double-layer ball structure itself occupies a certain space height, which undoubtedly brings great challenges to the thin design of the motor, and it is difficult to adapt to the latest demand for light and thin products in the market today. SUMMARY

[0004] Therefore, the utility model provides a kind of thin motor, and anti-shake module innovation adopts single-layer ball connection, reduces motor height, reduces assembly procedure and part quantity, reduces cost, improves competitiveness. In order to avoid the occurrence of X, Y axis cross talk, Y axis power unit adopts double coil, double magnet and double IC design, and the relative distance is measured by Hall integrated circuit, and the rotation angle is calculated and the current compensation is adjusted accordingly, effectively solving the cross talk, ensuring stable and efficient anti-shake, providing clear picture.

[0005] The utility model realizes the purpose by the following technical scheme:

[0006] A thin motor comprises a housing, a focusing module and an anti-shake module, the focusing module comprises a focusing carrier movable relative to the housing, a focusing power unit driving the focusing carrier to move relative to the housing, the anti-shake module comprises a ball, an anti-shake carrier movably connected with the focusing carrier through the ball, and an anti-shake power unit driving the anti-shake carrier to move relative to the focusing carrier, the anti-shake power unit comprises one X-axis power unit arranged in an X-axis direction and two Y-axis power units arranged in a Y-axis direction, the Y-axis power unit comprises a hall integrated circuit, a Y-axis magnet arranged on the anti-shake carrier, and a Y-axis coil opposite to the Y-axis magnet, the hall integrated circuit is used to measure the distance between the Y-axis coil and the Y-axis magnet, and the X-axis and the Y-axis are perpendicular to each other.

[0007] The anti-shake module is ingenious, and a single-layer ball is used as a connecting medium to movably connect the anti-shake carrier and the focusing carrier. The previous double-layer ball structure is optimized to a single-layer ball structure, the overall height of the motor is successfully reduced, the space utilization is more advantageous, and the motor can better adapt to various devices with strict space size requirements. In addition, the application of the single-layer ball structure significantly reduces the assembly process and the number of parts required, fundamentally reduces the production cost, and improves the market competitiveness of the product.

[0008] However, the single-layer ball structure brings convenience, but also causes new problems. Since the single-layer ball structure has no guide groove, the cross-talk phenomenon of the X-axis and the Y-axis is easy to occur in the actual operation process, which undoubtedly has a negative impact on the anti-shake performance, causing unstable and blurred problems in the shooting picture. In order to effectively solve this problem, the research and development team ingeniously adds a rotating compensation electromagnetic framework. Specifically, two Y-axis power units are used in the Y-axis direction to construct an innovative electromagnetic design of double coils, double magnets and double ICs. Two hall integrated circuits (hall ICs) can accurately measure the relative distance between the two Y-axis coils and the corresponding Y-axis magnets. Once the difference between the two distances is detected, the system can quickly calculate the rotation angle of the anti-shake carrier. Then, by accurately adjusting the current size of the two Y-axis coils, the rotation angle of the anti-shake carrier is compensated, thereby effectively improving the cross-talk problem between the X-axis and the Y-axis, ensuring that the anti-shake module can stably and efficiently operate, and providing more stable and clear picture support for shooting.

[0009] Preferably, the two Y-axis power units are arranged side by side.

[0010] The side-by-side arrangement enables the two Y-axis power units to be reasonably arranged in a limited space, reduces unnecessary space occupation, and helps to further reduce the overall height of the motor, making it easier to integrate into various thin electronic devices such as smartphones, tablet computers, etc., meeting the development trend of miniaturization and thinness of modern electronic devices.

[0011] Preferably, the focusing module further comprises guide posts limiting the moving direction of the focusing carrier, and the side surface of the focusing carrier is provided with grooves matched with the guide posts, which can slide relative to the guide posts along the height direction of the guide posts.

[0012] Firstly, it has a significant effect on improving dynamic tilt angle. In actual use, especially when focusing quickly, dynamic tilt angle is easily caused by various factors, which affects the accuracy and stability of focusing. The guide post guiding architecture can effectively constrain the moving path of the focusing carrier, keep its posture stable during movement, greatly reduce the generation of dynamic tilt angle, and ensure more accurate and reliable focusing process.

[0013] Secondly, this architecture greatly increases the stability of control. Through the close cooperation of guide posts and grooves, the movement of the focusing carrier is accurately guided, so that the focusing power unit can more accurately control the position and speed of the focusing carrier when driving it to move. This means that in different shooting scenes, whether it is fast switching of focus or fine focusing adjustment, more stable and smooth focusing operation can be achieved, providing a solid guarantee for shooting high-quality images.

[0014] Preferably, the number of guide posts and grooves is two, and the two guide posts are arranged in parallel on the same side of the focusing carrier.

[0015] Compared with a single guide post, the double guide post structure is like laying two precise tracks for the focusing carrier, so that it can only move linearly along the height direction of the guide posts when moving relative to the shell, effectively avoiding the possible deviation, shaking or twisting of the focusing carrier during movement, and ensuring the high precision of focusing action. In actual shooting scenes, whether it is shooting static scenes or dynamic objects, this precise guiding mechanism can ensure that the focusing carrier moves quickly and accurately to the appropriate position to achieve precise focusing, thereby significantly improving the imaging quality. In addition, the parallel arrangement of the two guide posts can jointly constrain the focusing carrier from both sides, greatly inhibiting the lateral swing of the focusing carrier during movement. When the focusing power unit drives the focusing carrier to move, the double guide post structure can balance the forces from all directions, so that the focusing carrier moves linearly in a stable state. This is crucial for improving the stability and reliability of focusing, especially in scenes that require frequent focusing or fast focusing, such as shooting sports events, wildlife, etc. It can effectively reduce the focusing errors caused by the swing of the focusing carrier, ensuring that every photo taken is clear and sharp.

[0016] Preferably, the focusing power unit comprises a focusing magnet arranged on the focusing carrier and a focusing coil opposite to the focusing magnet, and the two grooves are arranged on the two side edges of the focusing magnet.

[0017] The two grooves are arranged on the two side edges of the focusing magnet, on the one hand, while ensuring the normal operation of the focusing power unit, the cooperation of the grooves and the guide posts will not be interfered by the magnetic field, ensuring that the focusing carrier moves stably under the guidance of the guide posts, and further improving the accuracy of focusing; on the other hand, this layout method helps to optimize the overall structure of the focusing module, making the space utilization of each component more reasonable, and maximizing the function in a limited space.

[0018] Preferably, the focusing power unit is arranged in the Y-axis direction and is arranged opposite to the Y-axis power unit.

[0019] From the perspective of space utilization, the positions of different functional units are reasonably divided, avoiding mutual interference between components, so that the internal structure of the entire thin motor is more compact and orderly. In terms of electromagnetic compatibility, the opposite arrangement reduces the electromagnetic interference between the focusing power unit and the Y-axis power unit, ensuring that both units can work independently and stably. The focusing operation and the anti-shake operation are performed in different areas and do not affect each other, improving the stability and reliability of the entire motor system. In addition, this layout is also conducive to heat dissipation, and the heat generated by different units can be dissipated in relatively independent spaces, avoiding the accumulation of heat to adversely affect the performance of each component.

[0020] Preferably, the X-axis power unit comprises an X-axis magnet arranged on the anti-shake carrier and an X-axis coil opposite to the X-axis magnet.

[0021] Preferably, the focusing carrier is provided with a lower ball groove, the anti-shake carrier is provided with an upper ball groove, and the balls are movably arranged in the space enclosed by the lower ball groove and the upper ball groove.

[0022] The balls can freely roll in the space enclosed by the upper and lower ball grooves, so that the anti-shake carrier can move flexibly in multiple directions relative to the focusing carrier, thereby realizing a more comprehensive and accurate anti-shake function. This connection structure has only a single layer of balls, which reduces the overall height of the motor, making it more advantageous in space utilization and better adapted to various devices with strict space size requirements.

[0023] A camera comprising the thin motor as described above.

[0024] An electronic device comprising the camera as described above.

[0025] The beneficial effects of the utility model compared with the prior art are:

[0026] The thin motor of the utility model, the anti-shake module is unique, adopts single layer ball as the connecting medium, makes the anti-shake carrier realize movable connection with the focusing carrier through the ball, optimizes the previous double layer ball structure to single layer ball structure, successfully reduces the overall height of the motor, makes it more advantageous in space utilization, can better adapt to various devices with strict space size requirements.

[0027] However, the single layer ball structure brings convenience, but also causes new problems. Since the single layer ball structure has no guide groove, the cross talk phenomenon of X axis and Y axis is easy to occur in the actual operation process, which undoubtedly has a negative impact on the anti-shake performance, resulting in unstable, blurred and other problems of the shooting picture. In order to effectively solve this problem, the research and development team ingeniously adds the rotating compensation electromagnetic framework. Specifically, in the Y axis direction, two Y axis power units are used in a way, and the innovative electromagnetic design of double coil, double magnet and double IC is constructed. Two hall integrated circuits (hall IC) can accurately measure the relative distance between the two Y axis coils and the corresponding Y axis magnet. Once the difference between the two distances is detected, the system can quickly calculate the rotation angle of the anti-shake carrier. Then, by accurately adjusting the current size of the two Y axis coils, the rotation angle of the anti-shake carrier is compensated, thereby effectively improving the cross talk problem between X and Y axes, ensuring that the anti-shake module can stably and efficiently run, and providing more stable and clear picture support for shooting. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0029] Figure 1 It is an explosion view of the thin motor of the utility model embodiment.

[0030] Figure 2 It is a partial exploded view of the thin motor of the utility model embodiment.

[0031] Figure 3 It is a partial exploded view of another state of the thin motor of the utility model embodiment.

[0032] Figure 4 It is a partial exploded view of another view of the thin motor of the utility model embodiment. DETAILED DESCRIPTION

[0033] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor fall within the scope of protection of the present application.

[0035] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present application, it needs to be understood that the terms "upper", "lower", "left", "right", "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the present application is used, or the orientation or positional relationship commonly understood by those skilled in the art, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0036] It should be noted that: the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0037] The technical solutions in the present application will be described below with reference to the drawings.

[0038] The embodiment provides a thin motor, which comprises a shell 100, a focusing module 200 and a shakeproof module, the focusing module 200 comprises a focusing carrier 210 which is movable relative to the shell 100, a focusing power unit 220 which drives the focusing carrier 210 to move relative to the shell 100, the shakeproof module comprises a ball 300, a shakeproof carrier 400 which is movably connected with the focusing carrier 210 through the ball 300, and a shakeproof power unit 500 which drives the shakeproof carrier 400 to move relative to the focusing carrier 210, the shakeproof power unit 500 comprises one X-axis power unit 510 arranged in the X-axis direction and two Y-axis power units 520 arranged in the Y-axis direction, the Y-axis power unit 520 comprises a hall integrated circuit 521, a Y-axis magnet 522 arranged on the shakeproof carrier 400 and a Y-axis coil 523 opposite to the Y-axis magnet 522, and the hall integrated circuit 521 is used for measuring the distance between the Y-axis coil 523 and the Y-axis magnet 522, and the X-axis and the Y-axis are perpendicular to each other.

[0039] The shakeproof module is ingenious, the single-layer ball 300 is used as a connecting medium, the shakeproof carrier 400 is movably connected with the focusing carrier 210 through the ball 300, the double-layer ball 300 structure is optimized to the single-layer ball 300 structure, the overall height of the motor is successfully reduced, the space utilization is more advantageous, and the motor can better adapt to various devices which have strict requirements on space size. In addition, the application of the single-layer ball 300 structure significantly reduces the assembly process and the required part quantity, fundamentally reduces the production cost and improves the market competitiveness of the product.

[0040] However, the single-layer ball 300 structure brings convenience, but also causes new problems. Since the single-layer ball 300 structure has no guide groove, the crosstalk phenomenon of the X-axis and the Y-axis is prone to occur in the actual operation process, which undoubtedly has a negative impact on the shakeproof performance, and causes problems such as unstable and blurred shooting pictures. In order to effectively solve this problem, the research and development team ingeniously adds a rotary compensation electromagnetic framework. Specifically, two Y-axis power units 520 are used in the Y-axis direction, a double-coil, double-magnet and double-IC innovative electromagnetic design is constructed. Two hall integrated circuits 521 (hall ICs) can accurately measure the relative distance between the two Y-axis coils 523 and the corresponding Y-axis magnets 522. Once the difference between the two distances is detected, the system can quickly calculate the rotation angle of the shakeproof carrier 400. Then, by accurately adjusting the current size of the two Y-axis coils 523, the rotation angle of the shakeproof carrier 400 is compensated, thereby effectively improving the crosstalk problem between the X-axis and the Y-axis, and ensuring that the shakeproof module can stably and efficiently operate, and provide more stable and clear picture support for shooting.

[0041] In the embodiment, the two Y-axis power units 520 are arranged side by side.

[0042] The side-by-side arrangement enables the two Y-axis power units 520 to achieve a reasonable layout in a limited space, reduces unnecessary space occupation, helps to further reduce the overall height of the motor, and makes it easier to integrate into various thin electronic devices such as smartphones, tablets, etc., meeting the development trend of miniaturization and thinness of modern electronic devices.

[0043] In the embodiment, the focusing module 200 further comprises guide columns 230 limiting the moving direction of the focusing carrier 210. The side surface of the focusing carrier 210 is provided with grooves 211 cooperating with the guide columns 230. The grooves 211 can slide relative to the guide columns 230, and the sliding direction is along the height direction of the guide columns 230.

[0044] Firstly, it is effective in improving dynamic inclination. In actual use, especially when the focusing carrier 210 moves quickly for focusing operation, dynamic inclination is easily generated due to various factors, which affects the accuracy and stability of focusing. The guide column 230 guiding structure can effectively constrain the moving path of the focusing carrier 210, so that it maintains a stable posture during movement, greatly reduces the generation of dynamic inclination, and ensures that the focusing process is more accurate and reliable.

[0045] Secondly, the structure greatly increases the stability of control. Through the close cooperation of the guide column 230 and the groove 211, the movement of the focusing carrier 210 is accurately guided, so that the focusing power unit 220 can more accurately control the position and speed of the focusing carrier 210 when driving it to move. This means that in different shooting scenes, whether it is fast switching of focus or fine focusing adjustment, more stable and smooth focusing operation can be achieved, providing a solid guarantee for shooting high-quality images.

[0046] In the embodiment, the number of guide columns 230 and grooves 211 is two, and the two guide columns 230 are arranged in parallel on the same side of the focusing carrier 210.

[0047] Compared with a single guide column 230, the double-guide-column structure is like laying two precise tracks for the focusing carrier 210, so that it can only move linearly in the height direction of the guide column 230 when moving relative to the shell 100, effectively avoiding the possible deviation, shaking or twisting of the focusing carrier 210 during movement, and ensuring the high precision of the focusing action. In actual shooting scenes, whether shooting static scenes or dynamic objects, this precise guiding mechanism can ensure that the focusing carrier 210 quickly and accurately moves to the appropriate position to achieve precise focusing, thereby significantly improving the imaging quality. In addition, the parallel arrangement of the two guide columns 230 can jointly constrain the focusing carrier 210 from both sides, greatly inhibiting the lateral swinging of the focusing carrier 210 during movement. When the focusing power unit 220 drives the focusing carrier 210 to move, the double-guide-column 230 structure can balance the forces from all directions, so that the focusing carrier 210 moves linearly in a stable state. This is crucial for improving the stability and reliability of focusing, especially in scenes that require frequent or rapid focusing, such as shooting sports events, wildlife, etc., which can effectively reduce the focusing errors caused by the swinging of the focusing carrier 210, ensuring that every photo taken is clear and sharp.

[0048] In this embodiment, the focusing power unit 220 includes a focusing magnet 221 arranged on the focusing carrier 210, and a focusing coil 222 opposite to the focusing magnet 221, and two grooves 211 are arranged on both sides of the focusing magnet 221.

[0049] Arranging two grooves 211 on both sides of the focusing magnet 221, on the one hand, while ensuring the normal operation of the focusing power unit 220, the cooperation of the grooves 211 and the guide columns 230 will not be disturbed by the magnetic field, ensuring the stable movement of the focusing carrier 210 under the guidance of the guide columns 230, and further improving the precision of focusing; on the other hand, this layout helps to optimize the overall structure of the focusing module 200, making the space utilization of each component more reasonable, and maximizing the function in a limited space.

[0050] In this embodiment, the focusing power unit 220 is arranged in the Y-axis direction and opposite to the Y-axis power unit 520.

[0051] From the perspective of space utilization, the positions of different functional units are reasonably divided, mutual interference between components is avoided, and the internal structure of the entire thin motor is more compact and orderly. In terms of electromagnetic compatibility, the side arrangement reduces electromagnetic interference between the focusing power unit 220 and the Y-axis power unit 520, ensuring that both units can work independently and stably. The focusing operation and the anti-shake operation are performed in different areas and do not affect each other, improving the stability and reliability of the entire motor system. In addition, this layout is also beneficial to heat dissipation, and the heat generated by different units can be dissipated in relatively independent space, avoiding the accumulation of heat to adversely affect the performance of each component.

[0052] In the embodiment, the X-axis power unit 510 includes an X-axis magnet 511 arranged on the anti-shake carrier 400, and an X-axis coil 512 opposite to the X-axis magnet 511.

[0053] The shell 100 includes a base 110 and an upper cover 120, and the X-axis magnet 511 and the Y-axis magnet 522 are fixed to the anti-shake carrier 400 through a buckle 130.

[0054] In the embodiment, the focusing carrier 210 is provided with a lower ball groove 211, the anti-shake carrier 400 is provided with an upper ball groove 410, and the ball 300 is movably arranged in the space enclosed by the lower ball groove 211 and the upper ball groove 410.

[0055] The ball 300 can freely roll in the space enclosed by the upper and lower ball grooves 211, so that the anti-shake carrier 400 can move flexibly in multiple directions relative to the focusing carrier 210, thereby realizing a more comprehensive and accurate anti-shake function. This connection structure only has a single layer of balls 300, which reduces the overall height of the motor and makes it more advantageous in space utilization, better adapting to various types of equipment with strict space size requirements.

[0056] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A thin motor characterized by comprising: The camera includes a housing, a focusing module and an anti-shake module, the focusing module includes a focusing carrier movable relative to the housing, a focusing power unit driving the focusing carrier to move relative to the housing, the anti-shake module includes a ball, an anti-shake carrier movably connected with the focusing carrier through the ball, an anti-shake power unit driving the anti-shake carrier to move relative to the focusing carrier, the anti-shake power unit includes one X-axis power unit arranged in an X-axis direction and two Y-axis power units arranged in a Y-axis direction, the Y-axis power unit includes a Hall integrated circuit, a Y-axis magnet arranged on the anti-shake carrier, and a Y-axis coil opposite to the Y-axis magnet, the Hall integrated circuit is used to measure the distance between the Y-axis coil and the Y-axis magnet, and the X-axis and the Y-axis are perpendicular to each other.

2. The thin motor according to claim 1, wherein The two Y-axis power units are arranged side by side.

3. The thin motor according to claim 1, wherein The focusing module further includes guide columns limiting the moving direction of the focusing carrier, the side surface of the focusing carrier is provided with grooves matched with the guide columns, the grooves can slide relative to the guide columns, and the sliding direction is along the height direction of the guide columns.

4. The thin motor according to claim 3, wherein The number of the guide columns and the grooves is two, and the two guide columns are arranged in parallel on the same side of the focusing carrier.

5. The thin motor according to claim 3, wherein The focusing power unit includes a focusing magnet arranged on the focusing carrier and a focusing coil opposite to the focusing magnet, and the two grooves are arranged on the two side edges of the focusing magnet.

6. The thin motor according to claim 1, wherein The focusing power unit is arranged in the Y-axis direction and opposite to the Y-axis power unit.

7. The thin motor according to claim 1, wherein The X-axis power unit includes an X-axis magnet arranged on the anti-shake carrier and an X-axis coil opposite to the X-axis magnet.

8. The thin motor according to claim 1, wherein The focusing carrier is provided with a lower ball groove, the anti-shake carrier is provided with an upper ball groove, and the ball is movably arranged in the space enclosed by the lower ball groove and the upper ball groove.

9. A camera, characterized by The thin motor includes the thin motor as claimed in any one of claims 1-8.

10. An electronic device, comprising: The camera includes the camera as claimed in claim 9.

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