WO2021097788A1 - Switched electric motor, shutter device and camera device - Google Patents

Switched electric motor, shutter device and camera device Download PDF

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Publication number
WO2021097788A1
WO2021097788A1 PCT/CN2019/120140 CN2019120140W WO2021097788A1 WO 2021097788 A1 WO2021097788 A1 WO 2021097788A1 CN 2019120140 W CN2019120140 W CN 2019120140W WO 2021097788 A1 WO2021097788 A1 WO 2021097788A1
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WO
WIPO (PCT)
Prior art keywords
motor
shutter
permanent magnet
stable position
yoke
Prior art date
Application number
PCT/CN2019/120140
Other languages
French (fr)
Chinese (zh)
Inventor
薛光怀
白龍吉
黄通尧
王平
Original Assignee
深圳市大疆创新科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2019/120140 priority Critical patent/WO2021097788A1/en
Priority to CN201980039829.3A priority patent/CN112334828A/en
Publication of WO2021097788A1 publication Critical patent/WO2021097788A1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18—More than two members
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
    • H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets

Definitions

  • the embodiment of the present invention relates to the technical field of imaging equipment, in particular to a switch motor, a shutter device, and a camera device.
  • the shutter is an important component in the camera lens. It can operate according to the established exposure time, control the exposure of the camera's photosensitive element, and ensure the sharpness of the photo.
  • the popular shutters on the market mainly include focal plane shutters and inter-lens shutters.
  • the focal plane shutter is generally installed on the body in front of the photosensitive element.
  • the front curtain and the rear curtain of the shutter have front-to-back timing and sweep across the screen at the same speed.
  • the photosensitive element is gradually exposed through the gap.
  • the focal plane shutter is mainly used in SLR cameras.
  • the inter-lens shutter is placed in the middle of the lens.
  • the indirect drive shutter blade is released and closed instantly, thereby controlling the photosensitive element. Exposure time.
  • the inter-lens shutter is mainly used in portable cameras and some lenses.
  • the traditional inter-mirror shutter has a complicated structure and often requires springs, levers and other mechanisms to assist in driving the blades.
  • the fastest shutter speed generally can only reach 1/2000s.
  • the motor and driving mechanism must ensure the output and shutter speed, but also To ensure the life of the shutter, it is difficult to miniaturize the overall structure of the shutter, and the failure rate is often not guaranteed.
  • the embodiment of the present invention provides a switch motor, a shutter device, and a camera device.
  • a switching motor includes a permanent magnet and an electromagnet.
  • the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft.
  • the electromagnet includes a yoke and a coil, and the coil surrounds the yoke. Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  • the switch motor of the embodiment of the present invention has a compact and simple structure. Moreover, the output and holding force of the motor at a specific power can be adjusted from the main by optimizing the motor structure.
  • the weight and volume of the switch motor of the embodiment of the present invention are greatly reduced.
  • the electromagnetic motor is directly driven, which simplifies the structure design and improves the life of the switch, which is comparable to the traditional switch motor. Compared with, under the same power, it can output higher torque, which greatly improves the switching speed.
  • control of the switch motor of the embodiment of the present invention is simple, and the switch can be opened and closed by passing positive and negative currents at both ends of the coil.
  • a shutter device includes a shutter base, a shutter blade, and a shutter motor.
  • the shutter motor is installed on the shutter base, and the shutter blade is linked to the shutter motor.
  • the shutter motor includes a permanent magnet and an electromagnet.
  • the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft.
  • the electromagnet includes a yoke and a coil, and the coil surrounds the yoke. Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  • an imaging device includes a photosensitive element and a shutter device.
  • the shutter device includes a shutter base, a shutter blade, and a shutter motor.
  • the shutter motor is installed on the shutter base, and the shutter blade is linked to the shutter motor.
  • the shutter motor includes a permanent magnet and an electromagnet.
  • the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft.
  • the electromagnet includes a yoke and a coil, and the coil is wound around the yoke.
  • the permanent magnet when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  • the shutter device and the imaging device of the embodiment of the present invention can realize a large-diameter low-power high-speed shutter speed, and provide a strong power source for high-speed and accurate shutter driving.
  • the control of the shutter device and the imaging device of the embodiment of the present invention is simple, and the shutter motor can be switched by passing positive and negative currents at both ends of the coil.
  • the shutter device and the imaging device of the embodiments of the present invention have the advantages of low power, large torque output, and greatly increased shutter speed.
  • Figure 1 is a perspective view of a switching motor according to an embodiment of the present invention.
  • Fig. 2 is a perspective view of the switching motor shown in Fig. 1 from another perspective;
  • Fig. 3 is an exploded schematic diagram of the switching motor shown in Fig. 1;
  • Fig. 4 is a partial schematic diagram of the switching motor shown in Fig. 3;
  • Fig. 5 is a schematic diagram of the assembly of the switching motor shown in Fig. 4;
  • FIG. 6 is a schematic front view of the shutter device in a fully open state according to an embodiment of the present invention.
  • FIG. 7 is a schematic front view of the shutter device shown in FIG. 6 in a half-open state
  • FIG. 8 is a schematic front view of the shutter device shown in FIG. 6 in a fully closed state
  • FIG. 9 is a schematic back view of the shutter device shown in FIG. 8;
  • FIG. 10 is a partial front schematic view of the shutter device in a fully open state according to an embodiment of the present invention.
  • FIG. 11 is a partial back view of the shutter device in a fully open state according to an embodiment of the present invention.
  • FIGS. 1 to 5 show a switching motor 10 according to an embodiment of the present invention.
  • the switching motor 10 according to an embodiment of the present invention includes an electromagnet 11 and a permanent magnet 12.
  • the permanent magnet 12 includes a rotating shaft 120 and a permanent magnet 13.
  • the permanent magnet 13 is magnetized in parallel in the radial direction and has a pair of poles, such as the N pole and the S pole shown in FIG. 5.
  • the permanent magnet 13 has a through hole (not labeled).
  • the rotating shaft 120 passes through the through hole on the permanent magnet 13 and is fixed by, for example, glue, so that the permanent magnet 13 is connected to the rotating shaft 120.
  • the electromagnet 11 includes a yoke 14 and a coil 15, and the coil 15 surrounds the yoke 14.
  • the yoke 14 is made of a soft magnetic material so that it can be easily magnetized.
  • the yoke 14 of the electromagnet 11 When the coil 15 is not energized, the yoke 14 of the electromagnet 11 is magnetized by the permanent magnet 13, and the permanent magnet 12 receives the force of the electromagnet 11 in the first direction.
  • the magnetism of the yoke 14 changes, and the permanent magnet 12 receives the force of the electromagnet 11 in a second direction, wherein the second direction is opposite to the first direction. The force in the second direction pushes the permanent magnet 12 to rotate in the second direction.
  • the switch motor 10 composed of this simple structure can be kept on or off without energizing; at the same time, the above structure is easy to control, and the yoke 14 can be rapidly magnetized when energized, thereby generating the corresponding magnetic poles of the permanent magnet 12 The repulsive force then pushes the permanent magnet 13 to rotate around the rotating shaft 120, so as to switch from the closed state to the open state or from the open state to the closed state.
  • the yoke 14 is an integral structure.
  • the yoke 14 includes a first end 141 and a second end 142 opposite to each other, and an opening 143 is formed between the first end 141 and the second end 142.
  • the coil 15 includes two coils 15, and the two coils 15 can be respectively assembled on the first end 141 and the second end 142 of the yoke 14 through the opening 143.
  • the permanent magnet 12 is located in the opening 143 of the yoke 14.
  • the rotation axis of the permanent magnet 12 is located at the center of the opening 143, so as to ensure that the distance between the permanent magnet 12 and the first end 141 and the second end 142 of the yoke 14 is equal, thereby ensuring that the permanent magnet 12 and the yoke 14 Magnetic gap between iron 14.
  • the yoke 14 has an outward protrusion 144 on the side opposite to the opening 143, so as to increase the motor output.
  • the length of the protruding portion 144 is less than or equal to the length of the opening 143, so as to ensure that the switch motor 10 can achieve a large torque output under the condition of low power.
  • the length of the protrusion 144 is greater than or equal to the diameter of the motor, thereby enhancing the overall output of the switching motor 10 in the rotation range.
  • the central axis of the protrusion 144 is parallel to the central axis L1-L2 of the yoke 14, so as to save space, reduce the volume of the switch motor 10, and at the same time increase the output of the switch motor 10, and the switch The torque output of the motor 10 in the rotation range is more uniform.
  • the switch motor 10 has a first stable position and a second stable position. Wherein, the switch is in the open state in the first stable position, and the switch is in the closed state in the second stable position.
  • the permanent magnet 12 In order to increase the output speed of the switch motor 10 and maximize the torque so that the switch can be closed faster, when the switch motor 10 is in the first stable position, the permanent magnet 12 The magnetic field direction NS maintains a predetermined offset angle ⁇ 0 with the central axis L1-L2 of the yoke 14.
  • the bias angle ⁇ 0 is related to factors such as the size of the acceleration area and the closing area of the switch, the power of the switch motor 10, and the output curve of the switch motor 10, and can be reasonably selected according to the specific structure and design of the switch motor 10.
  • the offset angle ⁇ 0 is greater than 0 degrees and less than 90 degrees.
  • the offset angle ⁇ 0 is in the range of 10 degrees to 20 degrees.
  • the range of the above-mentioned bias angle covers the range of the maximum torque output of the motor, and can increase the rotation acceleration at the initial stage of the coil 15 being energized, thereby increasing the sensitivity of the switching motor 10.
  • the permanent magnet 12 When the coil 15 is not energized, the permanent magnet 12 is at the initial position shown in FIG. 5, and the yoke 14 is magnetized by the permanent magnet 13.
  • the permanent magnet 13 When the permanent magnet 13 is magnetized according to the N pole and S pole shown in FIG. 5, Among them, the first end 141 of the yoke 14 is magnetized to an N pole, and the second end 142 of the yoke 14 is magnetized to an S pole. Therefore, the yoke 14 has an adsorption effect on the permanent magnet 13, so the permanent magnet 12 is electromagnetically With the holding force of the iron 11 in the clockwise direction as shown in FIG. 5, the switch motor 10 is in the first stable position, and at this time, the switch is in the open state.
  • the magnetism of the yoke 14 changes, the first end 141 of the yoke 14 becomes an S pole, and the second end 142 of the yoke 14 becomes an N pole.
  • 14 has a repulsive force to the permanent magnet 13, and the permanent magnet 12 receives the force of the electromagnet 11 in the counterclockwise direction shown in FIG. 5.
  • the counterclockwise force overcomes the holding force and pushes the permanent magnet 12 to rotate counterclockwise.
  • the driving force becomes the resultant force of the electromagnetic force and the holding force. In this area, the output of the switch motor 10 reaches the maximum.
  • the switch motor 10 stops rotating to realize self-holding after power failure, and the switch motor 10 is in the second stable position. At this time, the switch is in the closed state.
  • a reverse current is passed through the coil 15, the yoke 14 is magnetized, the magnetism of the yoke 14 changes again, the S pole and the N pole of the yoke 14 are reversed, and the permanent magnet 12 receives the force of the electromagnet 11 in the clockwise direction.
  • the iron 11 pushes the permanent magnet 12 to rotate clockwise.
  • the switch motor 10 stops rotating to realize self-holding after power failure, and the switch motor 10 is again in the first stable position. Repeatedly, the opening and closing of the switch is realized.
  • the coil 15 When the switch motor 10 of the embodiment of the present invention is in the first stable position and the second stable position, the coil 15 is not energized.
  • the switch motor 10 of the embodiment of the present invention When the switch motor 10 of the embodiment of the present invention is changed from the first stable position to the second stable position, the coil 15 carries forward current.
  • the switch motor 10 of the embodiment of the present invention is changed from the second stable position to the first stable position, the coil 15 conducts reverse current.
  • the fast response of the switch motor 10 and the self-holding after power failure can be ensured.
  • the coil 15 can be cut off. Only the attraction force generated by the magnetization of the yoke 14 causes the permanent magnet 12 to rotate to a stable position by itself, so that the switch motor 10 returns to the on-state.
  • the switch motor 10 further includes a motor base 16, and the motor base 16 has a first limiting portion 161.
  • the permanent magnet 12 has a stop part 121. As shown in FIG. 5, the stop part 121 partially protrudes out of the yoke 14, so as to realize the structural relief and facilitate the connection between the stop part 121 and other components. As shown in FIG. 1, when the switch motor 10 is in the first stable position, the stop portion 121 of the permanent magnet 12 is limited to the first limit portion 161 of the motor base 16 by the force in the first direction, so as to realize the switch motor 10 The power outage self-holding.
  • the motor base 16 further includes a second limiting portion 162.
  • the stop portion 121 of the permanent magnet 12 is restricted by the second limit portion 162 of the motor base 16, so that the switch motor 10 can be self-maintained when it is powered off.
  • the rotation angle of the stop portion 121 is in the range of 0 degrees to 120 degrees. In another embodiment, the rotation angle of the stopper 121 is in the range of 0 degrees to 70 degrees. When the stop portion 121 rotates within a range of 0 degrees to 70 degrees, the torque of the switch motor 10 is optimized. In yet another embodiment, the rotation angle of the stop portion 121 is in a range of 60 degrees to 70 degrees. The above-mentioned rotation angle covers the maximum output torque range of the switch motor 10.
  • the permanent magnet 12 further includes a connecting rod 123.
  • the connecting rod 123 is arranged parallel to the rotating shaft 120, and the connecting rod 123 is connected to an end of the blocking portion 121 facing away from the rotating shaft 120.
  • the permanent magnet 12 further includes a mounting portion 122, the permanent magnet 13 is fixed above the mounting portion 122, and the blocking portion 121 protrudes from the outside of the mounting portion 122.
  • the switch motor 10 further includes a motor cover plate 17, which is formed of a non-magnetic material, such as PC aluminum alloy, stainless steel, and the like.
  • the motor cover 17 includes a positioning hole 173.
  • the motor base 16 includes a positioning post 163. The positioning post 163 of the motor base 16 is positioned in the positioning hole 173 of the motor cover 17, thereby fixing the motor cover The plate 17 is positioned on the motor base 16.
  • the motor cover 17 may also include positioning posts, and the motor base 16 includes positioning holes. The positioning posts of the motor cover 17 and the positioning holes of the motor base 16 are matched, so that the motor cover can also be 17 is positioned on the motor base 16.
  • the motor cover 17 is fixed to the motor base 16 by screws 18, and a receiving space 160 is formed between the motor cover 17 and the motor base 16, and the permanent magnet 12 and the electromagnet 11 are located in the receiving space 160. Further, the permanent magnet 12 and the electromagnet 11 can be compressed and at least partially fixed in the receiving space 160.
  • At least one of the motor cover 17 and the motor base 16 has a limiting hole.
  • the motor base 16 has a limiting hole 165
  • the motor cover 17 has a limiting hole 170
  • the rotating shaft 120 is rotatably received in the limiting hole 165 of the motor base 16 and the limiting hole 165 of the motor cover 17. ⁇ 170 ⁇ .
  • the motor cover plate 17 further includes a hollow portion 175, and the hollow portion 175 locates the coil 15.
  • the hollow part 175 includes two hollow parts 175 and the two hollow parts 175 are symmetrically arranged.
  • the two coils 15 are respectively positioned on the two hollow parts 175 of the motor cover plate 17. At the same time, the upper surface of the coil 15 can protrude from the motor cover plate 17.
  • the motor base 16 is provided with a slot 164 at a location close to the coil 15.
  • the motor base 16 is provided with a slot 164 on the outer side close to each coil 15.
  • the purpose of the slot 164 is to avoid the position of the coil 15 and to assist the coil 15 to dissipate heat.
  • the hollow portion 175 and the slot 164 of the motor cover plate 17 will not cause magnetic flux leakage.
  • the magnetic circuit of the switching motor 10 of the embodiment of the present invention is closed, the utilization rate of magnetic energy is higher, and higher torque can be output under the same power, and the magnetic circuit can be adjusted according to the actual needs of the application.
  • the gap or the shape of the yoke 14 should be designed with appropriate motor holding force and output torque.
  • the electromagnetic structure design of the switch motor 10 in the embodiment of the present invention ensures the self-holding of the motor when power is off, low power output and high torque, and its structure is compact and simple. Moreover, the output and holding force of the motor at a specific power can be adjusted from the main by optimizing the motor structure. Compared with the traditional switching motor, the weight and volume of the switching motor 10 of the embodiment of the present invention are greatly reduced. At the same time, the electromagnetic motor is directly driven, which simplifies the structure design and improves the service life of the switch. In comparison, under the same power, the switching motor 10 of the embodiment of the present invention can output a higher torque, which greatly improves the switching speed.
  • control of the switch motor 10 of the embodiment of the present invention is simple, and the switch can be opened and closed by passing positive and negative currents at both ends of the coil 15.
  • the above-mentioned switch motor 10 of the embodiment of the present invention can be used as a shutter motor 10.
  • the embodiment of the present invention also provides a shutter device 1.
  • Figures 6 to 11 show a shutter device 1 according to an embodiment of the present invention.
  • the shutter device 1 according to an embodiment of the present invention includes a shutter motor 10, a shutter base 20 and a shutter blade 30.
  • the shutter motor 10 may adopt the above-mentioned switch motor 10.
  • the shutter motor 10 is installed on the shutter base 20, and the shutter blade 30 is linked to the shutter motor 10.
  • the low-power shutter motor 10 directly drives the shutter blade 30, which reduces the volume and weight of machinery and hardware.
  • the shutter motor 10 includes a plurality of shutter motors 10, and the plurality of shutter motors 10 are uniformly arranged on the shutter base 20.
  • the shutter base 20 has a light-passing hole 201, and a plurality of shutter motors 10 are distributed in a ring shape along the light-passing hole 201.
  • the multiple shutter motors 10 have the same structure. In one embodiment, the shutter motor 10 includes five.
  • the design and placement of the shutter device 1 of the embodiment of the present invention fully consider the structure of the lens. Compared with the traditional shutter device, the shutter device 1 of the embodiment of the present invention has advantages in terms of volume and weight.
  • FIG. 6 shows a front schematic view of the shutter device 1 in a fully open state
  • FIG. 7 shows a front schematic view of the shutter device 1 in a half-open state
  • FIG. 8 shows a front schematic view of the shutter device 1 in a fully closed state
  • FIG. 9 It is a schematic diagram of the back of the shutter device 1 in a fully closed state.
  • 6 to 8 show the entire switching process of the shutter motor 10 according to the embodiment of the present invention.
  • the stop portion 121 on the permanent magnet 12 is located at the position shown in FIG. 6, and the stop portion 121 on the permanent magnet 12 is blocked by the first stop portion 161 of the motor base 16.
  • the shutter device 1 of the embodiment of the present invention is in the fully open state shown in FIG. 6.
  • the stop portion 121 on the permanent magnet 12 rotates to the position shown in FIG. 8, and the stop portion 121 on the permanent magnet 12 is blocked by the second stop portion 162 of the motor base 16.
  • the shutter blade 30 cooperates to realize the closing of the shutter motor 10, and the shutter device 1 of the embodiment of the present invention is in the fully closed state shown in FIGS. 8 and 9.
  • FIG. 7 shows that the shutter device 1 is in a half-open state and the permanent magnet at this time 12 where the stop 121 is located.
  • the shutter device 1 of the embodiment of the present invention may further include a synchronization ring 40.
  • 10 and 11 show schematic diagrams of the shutter motor 10 driving the shutter blade 30 through the synchronization ring 40 according to the embodiment of the present invention.
  • the connecting rod 123 on the permanent magnet 12 of the shutter motor 10 drives the synchronization ring 40 to drive the shutter blade 30 to move, so as to realize the opening and closing of the shutter.
  • the shutter device 1 of the embodiment of the present invention indirectly drives the shutter blades 30 through the synchronization ring 40 to provide the overall output torque and increase the total output torque.
  • the synchronization ring 40 ensures the mechanical synchronization between the shutter blades 30.
  • the shutter blade 30 includes a first blade 31 and a second blade 32.
  • the connecting rod 123 on the permanent magnet 12 of the shutter motor 10 drives the synchronization ring 40 to simultaneously drive the first blade 31 and the second blade 32.
  • the second blade 32 rotates.
  • the shutter blades 30 include five groups, and each group of shutter blades 30 includes a first blade 31 and a second blade 32.
  • the five groups of shutter blades 30 cooperate to realize the opening or closing of the shutter, thereby reducing the overall requirement. Moment of inertia and shutter volume.
  • the configuration of the five sets of shutter blades 30 can speed up the opening and closing speed of the shutter while meeting the requirements of optical design, and further improve the shutter efficiency.
  • the shutter device 1 of the embodiment of the present invention can realize a large-aperture, low-power (for example, an average of less than 200W) and a high-speed (for example, more than 1/4000s) shutter speed, and provide a powerful power source for high-speed and accurate shutter driving.
  • the shutter device 1 of the embodiment of the present invention is in the fully open or fully closed position, and has its own power-off and self-retaining power to ensure that the shutter blade 30 is in a stable state.
  • the control of the shutter device 1 of the embodiment of the present invention is simple, and the shutter motor 10 can be switched by passing positive and negative currents at both ends of the coil 15.
  • the shutter device 1 of the embodiment of the present invention has the advantages of low power, large torque output, and greatly increased shutter speed.
  • the embodiment of the present invention also provides a camera device.
  • the imaging device includes a photosensitive element (not shown) and the shutter device 1 as described above.
  • the imaging device of the embodiment of the present invention may include a camera, and the imaging device of the embodiment of the present invention may also be applied to imaging fields such as photoetching machines, machine vision, security monitoring, vehicle recorders, and medical imaging.
  • the imaging device of the embodiment of the present invention has beneficial technical effects similar to those of the shutter device 1 described above, so it will not be repeated here.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Reciprocating, Oscillating Or Vibrating Motors (AREA)
  • Shutters For Cameras (AREA)

Abstract

A switched electric motor (10). The switched electric motor (10) comprises a permanent magnet (12) and an electromagnet (11). The permanent magnet (12) comprises a rotating shaft (120) and a permanent magnet (13), and the permanent magnet (13) is connected to the rotating shaft (120). The electromagnet (11) comprises a yoke (14) and a coil (15), and the coil (15) surrounds the yoke (14). When the coil (15) is not energized, the permanent magnet (12) receives the force of the electromagnet (11) in a first direction; and when the coil (15) is energized, the permanent magnet (12) receives the force of the electromagnet (11) in a second direction, wherein the second direction is opposite to the first direction.

Description

开关电机、快门装置及摄像装置Switch motor, shutter device and camera device 技术领域Technical field
本发明实施例涉及成像设备技术领域，尤其涉及一种开关电机、快门装置及摄像装置。The embodiment of the present invention relates to the technical field of imaging equipment, in particular to a switch motor, a shutter device, and a camera device.
背景技术Background technique
快门是相机镜头中的一个重要组件，它可以按照既定的曝光时间运行，控制相机感光元件的曝光量，保证照片的清晰度。目前市面上流行的快门主要有焦平面快门和镜间快门两种。焦平面快门一般安装在感光元件的前面的机身上，快门前帘和后帘存在前后时序，并以相同的速度扫过画面，感光元件通过缝隙逐步曝光。焦平面快门主要应用在单反相机上。镜间快门放置在镜头中间，一般有两片以上的快门叶片，通过电机直驱，或者通过弹簧、杠杆等机构将电机能量储能后，瞬间释放间接驱动快门叶片张合，从而控制感光元件的曝光时间。镜间快门主要应用在轻便相机和部分镜头上。The shutter is an important component in the camera lens. It can operate according to the established exposure time, control the exposure of the camera's photosensitive element, and ensure the sharpness of the photo. Currently, the popular shutters on the market mainly include focal plane shutters and inter-lens shutters. The focal plane shutter is generally installed on the body in front of the photosensitive element. The front curtain and the rear curtain of the shutter have front-to-back timing and sweep across the screen at the same speed. The photosensitive element is gradually exposed through the gap. The focal plane shutter is mainly used in SLR cameras. The inter-lens shutter is placed in the middle of the lens. Generally, there are more than two shutter blades, which are directly driven by a motor, or after the energy of the motor is stored by a mechanism such as a spring or a lever, the indirect drive shutter blade is released and closed instantly, thereby controlling the photosensitive element. Exposure time. The inter-lens shutter is mainly used in portable cameras and some lenses.
然而，传统的镜间快门结构复杂，往往需要弹簧、杠杆等机构辅助驱动叶片，最快的快门速度一般只能达到1/2000s，同时，因为电机和驱动机构既要保证出力和快门速度，又要保证快门寿命，导致快门整体结构难以小型化，故障率也往往无法保障。However, the traditional inter-mirror shutter has a complicated structure and often requires springs, levers and other mechanisms to assist in driving the blades. The fastest shutter speed generally can only reach 1/2000s. At the same time, because the motor and driving mechanism must ensure the output and shutter speed, but also To ensure the life of the shutter, it is difficult to miniaturize the overall structure of the shutter, and the failure rate is often not guaranteed.
发明内容Summary of the invention
本发明实施例提供一种开关电机、快门装置及摄像装置。The embodiment of the present invention provides a switch motor, a shutter device, and a camera device.
根据本发明实施例的一个方面，提供一种开关电机。所述开关电机包括永磁铁及电磁铁。所述永磁铁包括转轴和永磁体，所述永磁体连接于 所述转轴上。所述电磁铁包括轭铁和线圈，所述线圈环绕于所述轭铁上。其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。According to one aspect of the embodiments of the present invention, a switching motor is provided. The switch motor includes a permanent magnet and an electromagnet. The permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft. The electromagnet includes a yoke and a coil, and the coil surrounds the yoke. Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
本发明实施例的开关电机的结构紧凑、简单。而且，可以通过优化电机结构来自主调节电机在特定功率下的出力和保持力。The switch motor of the embodiment of the present invention has a compact and simple structure. Moreover, the output and holding force of the motor at a specific power can be adjusted from the main by optimizing the motor structure.
相对于传统的开关电机来说，本发明实施例的开关电机的重量和体积大大减小，同时采用电磁电机直驱的方式，简化了结构设计，提高了开关的寿命，与传统的开关电机相比，在相同的功率下，可输出更高的扭矩，极大提升了开关速度。Compared with the traditional switch motor, the weight and volume of the switch motor of the embodiment of the present invention are greatly reduced. At the same time, the electromagnetic motor is directly driven, which simplifies the structure design and improves the life of the switch, which is comparable to the traditional switch motor. Compared with, under the same power, it can output higher torque, which greatly improves the switching speed.
另外，本发明实施例的开关电机的控制简单，通过在线圈两端通正反电流即可实现开关的开启和闭合。In addition, the control of the switch motor of the embodiment of the present invention is simple, and the switch can be opened and closed by passing positive and negative currents at both ends of the coil.
根据本发明实施例的另一个方面，提供一种快门装置。所述快门装置包括快门基座、快门叶片及快门电机。所述快门电机安装于所述快门基座上，所述快门叶片连动于所述快门电机。所述快门电机包括永磁铁及电磁铁。所述永磁铁包括转轴和永磁体，所述永磁体连接于所述转轴上。所述电磁铁包括轭铁和线圈，所述线圈环绕于所述轭铁上。其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。According to another aspect of the embodiments of the present invention, a shutter device is provided. The shutter device includes a shutter base, a shutter blade, and a shutter motor. The shutter motor is installed on the shutter base, and the shutter blade is linked to the shutter motor. The shutter motor includes a permanent magnet and an electromagnet. The permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft. The electromagnet includes a yoke and a coil, and the coil surrounds the yoke. Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
根据本发明实施例的又一个方面，提供一种摄像装置。所述摄像装置包括感光元件及快门装置。所述快门装置包括快门基座、快门叶片及快门电机。所述快门电机安装于所述快门基座上，所述快门叶片连动于所述快门电机。所述快门电机包括永磁铁及电磁铁。所述永磁铁包括转轴和永磁体，所述永磁体连接于所述转轴上。所述电磁铁包括轭铁和线圈，所述线圈环 绕于所述轭铁上。其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。According to another aspect of the embodiments of the present invention, an imaging device is provided. The imaging device includes a photosensitive element and a shutter device. The shutter device includes a shutter base, a shutter blade, and a shutter motor. The shutter motor is installed on the shutter base, and the shutter blade is linked to the shutter motor. The shutter motor includes a permanent magnet and an electromagnet. The permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft. The electromagnet includes a yoke and a coil, and the coil is wound around the yoke. Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
本发明实施例的快门装置及摄像装置可以实现大口径的低功率的高速快门速度，为高速精确的快门驱动提供强劲的动力源。The shutter device and the imaging device of the embodiment of the present invention can realize a large-diameter low-power high-speed shutter speed, and provide a strong power source for high-speed and accurate shutter driving.
本发明实施例的快门装置及摄像装置的控制简单，在线圈两端通正反电流即可实现快门电机的开关。The control of the shutter device and the imaging device of the embodiment of the present invention is simple, and the shutter motor can be switched by passing positive and negative currents at both ends of the coil.
而且，本发明实施例的快门装置及摄像装置具有低功率、大扭矩输出、大幅提升快门速度等优势。Moreover, the shutter device and the imaging device of the embodiments of the present invention have the advantages of low power, large torque output, and greatly increased shutter speed.
附图说明Description of the drawings
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。In order to explain the technical solutions in the embodiments of the present invention more clearly, the following will briefly introduce the drawings needed in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained from these drawings without creative labor.
图1为本发明一个实施例的开关电机的立体图；Figure 1 is a perspective view of a switching motor according to an embodiment of the present invention;
图2为图1所示的开关电机的另一视角的立体图；Fig. 2 is a perspective view of the switching motor shown in Fig. 1 from another perspective;
图3为图1所示的开关电机的分解示意图；Fig. 3 is an exploded schematic diagram of the switching motor shown in Fig. 1;
图4为图3所示的开关电机的部分示意图；Fig. 4 is a partial schematic diagram of the switching motor shown in Fig. 3;
图5为图4所示的开关电机的装配示意图；Fig. 5 is a schematic diagram of the assembly of the switching motor shown in Fig. 4;
图6为本发明一个实施例的快门装置在全开状态下的正面示意图；6 is a schematic front view of the shutter device in a fully open state according to an embodiment of the present invention;
图7为图6所示的快门装置在半开状态下的正面示意图；FIG. 7 is a schematic front view of the shutter device shown in FIG. 6 in a half-open state;
图8为图6所示的快门装置在全闭状态下的正面示意图；8 is a schematic front view of the shutter device shown in FIG. 6 in a fully closed state;
图9为图8所示的快门装置的背面示意图；FIG. 9 is a schematic back view of the shutter device shown in FIG. 8;
图10为本发明一个实施例的快门装置在全开状态下的部分正面示意图；10 is a partial front schematic view of the shutter device in a fully open state according to an embodiment of the present invention;
图11为本发明一个实施例的快门装置在全开状态下的部分背面示意图。FIG. 11 is a partial back view of the shutter device in a fully open state according to an embodiment of the present invention.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本发明相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本发明的一些方面相一致的装置和方法的例子。The exemplary embodiments will be described in detail here, and examples thereof are shown in the accompanying drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present invention. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present invention as detailed in the appended claims.
在本发明使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本发明。在本发明和所附权利要求书中所使用的单数形式的“一种”、“所述”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。除非另行指出，“前部”、“后部”、“下部”和/或“上部”等类似词语只是为了便于说明，而并非限于一个位置或者一种空间定向。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而且可以包括电性的连接，不管是直接的还是间接的。在本发明中“能够”可以表示具有能力。The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "said" and "the" used in the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and/or" as used herein refers to and includes any or all possible combinations of one or more associated listed items. Unless otherwise indicated, similar words such as "front", "rear", "lower" and/or "upper" are only for convenience of description, and are not limited to one position or one spatial orientation. Similar words such as "connected" or "connected" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. In the present invention, "capable" can mean having ability.
下面结合附图，对本发明的各个实施例进行详细说明。在不冲突的 情况下，下述的实施例及实施方式中的特征可以相互组合。The various embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the implementation can be combined with each other.
图1至图5揭示了本发明一个实施例的开关电机10。如图1至图5所示，本发明一个实施例的开关电机10包括电磁铁11和永磁铁12。永磁铁12包括转轴120和永磁体13，永磁体13沿径向平行充磁，共一对极，例如图5所示的N极和S极，永磁体13上具有通孔(未标号)，转轴120穿过永磁体13上的通孔，并通过例如胶水固定，从而将永磁体13连接于转轴120上。电磁铁11包括轭铁14和线圈15，线圈15环绕于轭铁14上。轭铁14由软磁性材料制成，从而很容易被磁化。Figures 1 to 5 show a switching motor 10 according to an embodiment of the present invention. As shown in FIGS. 1 to 5, the switching motor 10 according to an embodiment of the present invention includes an electromagnet 11 and a permanent magnet 12. The permanent magnet 12 includes a rotating shaft 120 and a permanent magnet 13. The permanent magnet 13 is magnetized in parallel in the radial direction and has a pair of poles, such as the N pole and the S pole shown in FIG. 5. The permanent magnet 13 has a through hole (not labeled). The rotating shaft 120 passes through the through hole on the permanent magnet 13 and is fixed by, for example, glue, so that the permanent magnet 13 is connected to the rotating shaft 120. The electromagnet 11 includes a yoke 14 and a coil 15, and the coil 15 surrounds the yoke 14. The yoke 14 is made of a soft magnetic material so that it can be easily magnetized.
在线圈15未通电时，电磁铁11的轭铁14被永磁体13磁化，永磁铁12受到电磁铁11沿着第一方向的力。在线圈15通电时，轭铁14的磁性改变，永磁铁12受到电磁铁11沿着第二方向的力，其中，第二方向与第一方向相反。第二方向的力推动永磁铁12沿着第二方向转动。通过该简单结构组成的开关电机10，可以在无需通电的情况下保持开启状态或关闭状态；同时，上述结构易于控制，轭铁14在通电时可被迅速磁化从而对永磁铁12的相应磁极产生排斥力，进而推动永磁体13绕转轴120旋转，以实现从关闭状态到开启状态或是从开启状态到关闭状态的切换。When the coil 15 is not energized, the yoke 14 of the electromagnet 11 is magnetized by the permanent magnet 13, and the permanent magnet 12 receives the force of the electromagnet 11 in the first direction. When the coil 15 is energized, the magnetism of the yoke 14 changes, and the permanent magnet 12 receives the force of the electromagnet 11 in a second direction, wherein the second direction is opposite to the first direction. The force in the second direction pushes the permanent magnet 12 to rotate in the second direction. The switch motor 10 composed of this simple structure can be kept on or off without energizing; at the same time, the above structure is easy to control, and the yoke 14 can be rapidly magnetized when energized, thereby generating the corresponding magnetic poles of the permanent magnet 12 The repulsive force then pushes the permanent magnet 13 to rotate around the rotating shaft 120, so as to switch from the closed state to the open state or from the open state to the closed state.
在一些实施例中，轭铁14为一整体结构。轭铁14包括相对的第一端141和第二端142，第一端141和第二端142之间具有开口143。线圈15包括两个，两个线圈15可以通过开口143分别装配于轭铁14的第一端141和第二端142上。永磁铁12位于轭铁14的开口143中。在一个实施例中，永磁铁12的旋转轴线位于开口143的中心位置，从而可以确保永磁铁12到轭铁14的第一端141和第二端142的距离相等，进而保证永磁铁12与轭铁14之间的磁隙。In some embodiments, the yoke 14 is an integral structure. The yoke 14 includes a first end 141 and a second end 142 opposite to each other, and an opening 143 is formed between the first end 141 and the second end 142. The coil 15 includes two coils 15, and the two coils 15 can be respectively assembled on the first end 141 and the second end 142 of the yoke 14 through the opening 143. The permanent magnet 12 is located in the opening 143 of the yoke 14. In one embodiment, the rotation axis of the permanent magnet 12 is located at the center of the opening 143, so as to ensure that the distance between the permanent magnet 12 and the first end 141 and the second end 142 of the yoke 14 is equal, thereby ensuring that the permanent magnet 12 and the yoke 14 Magnetic gap between iron 14.
在另一些实施例中，轭铁14在与开口143相对的一侧具有向外的凸出部144，从而可以增加电机出力。凸出部144的长度小于或等于开口143的长度，从而保证开关电机10在低功率的条件下也可实现大扭矩输出。凸 出部144的长度大于或等于电机直径，从而对开关电机10在旋转范围内的输出整体进行增强。在一个实施例中，凸出部144的中轴线平行于轭铁14的中轴线L1-L2，从而可以节省空间，减小开关电机10的体积，同时使开关电机10出力进一步增大，且开关电机10在旋转范围内的力矩输出更趋均匀。In other embodiments, the yoke 14 has an outward protrusion 144 on the side opposite to the opening 143, so as to increase the motor output. The length of the protruding portion 144 is less than or equal to the length of the opening 143, so as to ensure that the switch motor 10 can achieve a large torque output under the condition of low power. The length of the protrusion 144 is greater than or equal to the diameter of the motor, thereby enhancing the overall output of the switching motor 10 in the rotation range. In one embodiment, the central axis of the protrusion 144 is parallel to the central axis L1-L2 of the yoke 14, so as to save space, reduce the volume of the switch motor 10, and at the same time increase the output of the switch motor 10, and the switch The torque output of the motor 10 in the rotation range is more uniform.
开关电机10具有第一稳定位置和第二稳定位置。其中，在第一稳定位置时开关处于开启状态，在第二稳定位置时开关处于闭合状态。The switch motor 10 has a first stable position and a second stable position. Wherein, the switch is in the open state in the first stable position, and the switch is in the closed state in the second stable position.
如图5所示，在一些实施例中，为了提升开关电机10的出力速度，使力矩最大化，以使得开关能够更快地关闭，在开关电机10处于第一稳定位置时，永磁铁12的磁场方向N-S与轭铁14的中轴线L1-L2保持预定的偏置角度θ 0。偏置角度θ 0与开关的加速区域和关闭区域大小、开关电机10的功率大小、开关电机10的出力曲线等因素有关，可以根据开关电机10的具体结构和设计来合理选择。在一个实施例中，偏置角度θ 0大于0度小于90度。在另一个实施例中，偏置角度θ 0在10度到20度的范围内。上述偏置角度的范围覆盖了电机扭矩输出最大的范围，能在线圈15通电的初期即行提高旋转加速度，进而增加了开关电机10的灵敏度。 As shown in Figure 5, in some embodiments, in order to increase the output speed of the switch motor 10 and maximize the torque so that the switch can be closed faster, when the switch motor 10 is in the first stable position, the permanent magnet 12 The magnetic field direction NS maintains a predetermined offset angle θ 0 with the central axis L1-L2 of the yoke 14. The bias angle θ 0 is related to factors such as the size of the acceleration area and the closing area of the switch, the power of the switch motor 10, and the output curve of the switch motor 10, and can be reasonably selected according to the specific structure and design of the switch motor 10. In one embodiment, the offset angle θ 0 is greater than 0 degrees and less than 90 degrees. In another embodiment, the offset angle θ 0 is in the range of 10 degrees to 20 degrees. The range of the above-mentioned bias angle covers the range of the maximum torque output of the motor, and can increase the rotation acceleration at the initial stage of the coil 15 being energized, thereby increasing the sensitivity of the switching motor 10.
在线圈15未通电时，永磁铁12位于图5所示的初始位置，轭铁14被永磁体13磁化，在永磁体13按照图5所示的N极和S极被充磁的情况下，其中，轭铁14的第一端141被磁化成N极，轭铁14的第二端142被磁化成S极，因此，轭铁14对永磁体13具有吸附作用，所以，永磁铁12受到电磁铁11沿着图5所示的顺时针方向的保持力，开关电机10处于第一稳定位置，此时，开关处于开启状态。当在线圈15里面通正向电流时，电产生磁场，轭铁14的磁性改变，轭铁14的第一端141变为S极，轭铁14的第二端142变为N极，轭铁14对永磁体13具有排斥力，永磁铁12受到电磁铁11沿着图5所示的逆时针方向的力。逆时针方向的力克服保持力，推动永磁铁12沿着逆时针转动。在永磁铁12转过轭铁14的中轴线 L1-L2之后，推动力变为电磁力与保持力的合力，在这个区域内，开关电机10的出力达到最大。直到永磁铁12逆时针转动到图5所示的另一侧时，开关电机10停止转动，实现断电自保持，开关电机10处于第二稳定位置，此时，开关处于闭合状态。当在线圈15里面通反向电流时，轭铁14被磁化，轭铁14的磁性再次改变，轭铁14的S极和N极翻转，永磁铁12受到电磁铁11顺时针方向的力，电磁铁11推动永磁铁12顺时针方向转动。当永磁铁12顺时针转动回到图5所示的初始位置时，开关电机10停止转动，实现断电自保持，开关电机10又处于第一稳定位置。如此反复，实现了开关的开启和闭合。When the coil 15 is not energized, the permanent magnet 12 is at the initial position shown in FIG. 5, and the yoke 14 is magnetized by the permanent magnet 13. When the permanent magnet 13 is magnetized according to the N pole and S pole shown in FIG. 5, Among them, the first end 141 of the yoke 14 is magnetized to an N pole, and the second end 142 of the yoke 14 is magnetized to an S pole. Therefore, the yoke 14 has an adsorption effect on the permanent magnet 13, so the permanent magnet 12 is electromagnetically With the holding force of the iron 11 in the clockwise direction as shown in FIG. 5, the switch motor 10 is in the first stable position, and at this time, the switch is in the open state. When a forward current is passed through the coil 15, the electricity generates a magnetic field, the magnetism of the yoke 14 changes, the first end 141 of the yoke 14 becomes an S pole, and the second end 142 of the yoke 14 becomes an N pole. 14 has a repulsive force to the permanent magnet 13, and the permanent magnet 12 receives the force of the electromagnet 11 in the counterclockwise direction shown in FIG. 5. The counterclockwise force overcomes the holding force and pushes the permanent magnet 12 to rotate counterclockwise. After the permanent magnet 12 rotates through the central axis L1-L2 of the yoke 14, the driving force becomes the resultant force of the electromagnetic force and the holding force. In this area, the output of the switch motor 10 reaches the maximum. Until the permanent magnet 12 rotates counterclockwise to the other side as shown in FIG. 5, the switch motor 10 stops rotating to realize self-holding after power failure, and the switch motor 10 is in the second stable position. At this time, the switch is in the closed state. When a reverse current is passed through the coil 15, the yoke 14 is magnetized, the magnetism of the yoke 14 changes again, the S pole and the N pole of the yoke 14 are reversed, and the permanent magnet 12 receives the force of the electromagnet 11 in the clockwise direction. The iron 11 pushes the permanent magnet 12 to rotate clockwise. When the permanent magnet 12 rotates clockwise and returns to the initial position shown in FIG. 5, the switch motor 10 stops rotating to realize self-holding after power failure, and the switch motor 10 is again in the first stable position. Repeatedly, the opening and closing of the switch is realized.
在本发明实施例的开关电机10处于第一稳定位置和第二稳定位置时，线圈15不通电。当本发明实施例的开关电机10由第一稳定位置变换为第二稳定位置时，线圈15通正向电流。当本发明实施例的开关电机10由第二稳定位置变换为第一稳定位置时，线圈15通反向电流。通过如上设置，可以保证开关电机10的快速响应及断电自保持。更进一步地，在永磁铁12转动一定角度后，可以对线圈15断电，仅靠轭铁14被磁化而产生的吸附力使永磁铁12自行旋转至稳定位置，从而使开关电机10回复至开启状态或关闭状态。例如，若永磁铁12位于图5所示的初始位置，当永磁铁12旋转角度小于偏置角度θ 0时，线圈15断电后开关电机10的永磁铁12受轭铁14作用可回复至第一稳定位置；当永磁铁12旋转角度大于偏置角度θ 0时，线圈15断电后开关电机10的永磁铁12受轭铁14作用可继续转动至至第二稳定位置，反之亦然。 When the switch motor 10 of the embodiment of the present invention is in the first stable position and the second stable position, the coil 15 is not energized. When the switch motor 10 of the embodiment of the present invention is changed from the first stable position to the second stable position, the coil 15 carries forward current. When the switch motor 10 of the embodiment of the present invention is changed from the second stable position to the first stable position, the coil 15 conducts reverse current. Through the above setting, the fast response of the switch motor 10 and the self-holding after power failure can be ensured. Furthermore, after the permanent magnet 12 rotates to a certain angle, the coil 15 can be cut off. Only the attraction force generated by the magnetization of the yoke 14 causes the permanent magnet 12 to rotate to a stable position by itself, so that the switch motor 10 returns to the on-state. State or closed state. For example, if the permanent magnet 12 is located at the initial position shown in FIG. 5, when the rotation angle of the permanent magnet 12 is less than the offset angle θ 0 , the permanent magnet 12 of the switching motor 10 after the coil 15 is de-energized can be restored to the first position under the action of the yoke 14 A stable position; when the rotation angle of the permanent magnet 12 is greater than the bias angle θ 0 , the permanent magnet 12 of the switch motor 10 can continue to rotate to the second stable position by the yoke 14 after the coil 15 is de-energized, and vice versa.
如图1至图3所示，在一些实施例中，开关电机10还包括电机基座16，电机基座16具有第一限位部161。永磁铁12具有挡止部121，如图5所示，挡止部121部分凸出于轭铁14之外，以实现结构让位并便于挡止部121与其他部件的连接。如图1所示，在开关电机10处于第一稳定位置时，永磁铁12的挡止部121被第一方向的力限位于电机基座16的第一限位部 161，从而实现开关电机10的断电自保持。As shown in FIGS. 1 to 3, in some embodiments, the switch motor 10 further includes a motor base 16, and the motor base 16 has a first limiting portion 161. The permanent magnet 12 has a stop part 121. As shown in FIG. 5, the stop part 121 partially protrudes out of the yoke 14, so as to realize the structural relief and facilitate the connection between the stop part 121 and other components. As shown in FIG. 1, when the switch motor 10 is in the first stable position, the stop portion 121 of the permanent magnet 12 is limited to the first limit portion 161 of the motor base 16 by the force in the first direction, so as to realize the switch motor 10 The power outage self-holding.
如图1和图3所示，电机基座16还包括第二限位部162。在开关电机10处于第二稳定位置时，永磁铁12的挡止部121被电机基座16的第二限位部162所限位，从而实现开关电机10的断电自保持。As shown in FIGS. 1 and 3, the motor base 16 further includes a second limiting portion 162. When the switch motor 10 is in the second stable position, the stop portion 121 of the permanent magnet 12 is restricted by the second limit portion 162 of the motor base 16, so that the switch motor 10 can be self-maintained when it is powered off.
在一个实施例中，挡止部121的旋转角度在0度到120度的范围内。在另一个实施例中，挡止部121的旋转角度在0度到70度的范围内。挡止部121在0度到70度的范围内旋转时，开关电机10的力矩达到最优化。在又一个实施例中，挡止部121的旋转角度在60度到70度的范围内。上述旋转角度覆盖了开关电机10输出力矩最大的范围。In an embodiment, the rotation angle of the stop portion 121 is in the range of 0 degrees to 120 degrees. In another embodiment, the rotation angle of the stopper 121 is in the range of 0 degrees to 70 degrees. When the stop portion 121 rotates within a range of 0 degrees to 70 degrees, the torque of the switch motor 10 is optimized. In yet another embodiment, the rotation angle of the stop portion 121 is in a range of 60 degrees to 70 degrees. The above-mentioned rotation angle covers the maximum output torque range of the switch motor 10.
参照图3和图4所示，永磁铁12还包括连杆123。连杆123平行于转轴120设置，并且，连杆123连接于挡止部121背离转轴120的一端。永磁铁12还包括安装部122，永磁体13固定于安装部122的上方，挡止部121凸出于安装部122的外侧。Referring to FIGS. 3 and 4, the permanent magnet 12 further includes a connecting rod 123. The connecting rod 123 is arranged parallel to the rotating shaft 120, and the connecting rod 123 is connected to an end of the blocking portion 121 facing away from the rotating shaft 120. The permanent magnet 12 further includes a mounting portion 122, the permanent magnet 13 is fixed above the mounting portion 122, and the blocking portion 121 protrudes from the outside of the mounting portion 122.
如图1至图3所示，开关电机10还包括电机盖板17，电机盖板17由不导磁的材料形成，例如PC铝合金、不锈钢等。在一个实施例中，电机盖板17包括定位孔173，相应地，电机基座16包括定位柱163，电机基座16的定位柱163定位于电机盖板17的定位孔173，从而将电机盖板17定位于电机基座16上。在另一个实施例中，电机盖板17也可以包括定位柱，而电机基座16包括定位孔，电机盖板17的定位柱与电机基座16的定位孔配合，从而也可以将电机盖板17定位于电机基座16上。电机盖板17通过螺钉18固定于电机基座16上，在电机盖板17和电机基座16之间形成收容空间160，永磁铁12和电磁铁11位于收容空间160内。进一步地，永磁铁12和电磁铁11可以被压紧并至少部分固定于收容空间160内。As shown in FIGS. 1 to 3, the switch motor 10 further includes a motor cover plate 17, which is formed of a non-magnetic material, such as PC aluminum alloy, stainless steel, and the like. In one embodiment, the motor cover 17 includes a positioning hole 173. Correspondingly, the motor base 16 includes a positioning post 163. The positioning post 163 of the motor base 16 is positioned in the positioning hole 173 of the motor cover 17, thereby fixing the motor cover The plate 17 is positioned on the motor base 16. In another embodiment, the motor cover 17 may also include positioning posts, and the motor base 16 includes positioning holes. The positioning posts of the motor cover 17 and the positioning holes of the motor base 16 are matched, so that the motor cover can also be 17 is positioned on the motor base 16. The motor cover 17 is fixed to the motor base 16 by screws 18, and a receiving space 160 is formed between the motor cover 17 and the motor base 16, and the permanent magnet 12 and the electromagnet 11 are located in the receiving space 160. Further, the permanent magnet 12 and the electromagnet 11 can be compressed and at least partially fixed in the receiving space 160.
电机盖板17和电机基座16中的至少一个具有限位孔。在一个实施例中，电机基座16具有限位孔165，电机盖板17具有限位孔170，转轴 120可转动地收容在电机基座16的限位孔165和电机盖板17的限位孔170中。At least one of the motor cover 17 and the motor base 16 has a limiting hole. In one embodiment, the motor base 16 has a limiting hole 165, the motor cover 17 has a limiting hole 170, and the rotating shaft 120 is rotatably received in the limiting hole 165 of the motor base 16 and the limiting hole 165 of the motor cover 17.孔170中.
电机盖板17还包括中空部175，中空部175定位线圈15。中空部175包括两个，且两个中空部175对称设置，两个线圈15分别定位在电机盖板17的两个中空部175，同时，线圈15上表面可以凸出于电机盖板17。The motor cover plate 17 further includes a hollow portion 175, and the hollow portion 175 locates the coil 15. The hollow part 175 includes two hollow parts 175 and the two hollow parts 175 are symmetrically arranged. The two coils 15 are respectively positioned on the two hollow parts 175 of the motor cover plate 17. At the same time, the upper surface of the coil 15 can protrude from the motor cover plate 17.
如图2和图3所示，电机基座16在靠近线圈15安装的部位设有开槽164。在一个实施例中，电机基座16在靠近每一线圈15的外侧设有开槽164。开槽164设置的目的用于线圈15位置的避让，并可辅助线圈15的散热。此外，因为磁路都在轭铁14中，电机盖板17的中空部175和开槽164不会导致漏磁，。As shown in FIG. 2 and FIG. 3, the motor base 16 is provided with a slot 164 at a location close to the coil 15. In one embodiment, the motor base 16 is provided with a slot 164 on the outer side close to each coil 15. The purpose of the slot 164 is to avoid the position of the coil 15 and to assist the coil 15 to dissipate heat. In addition, because the magnetic circuit is in the yoke 14, the hollow portion 175 and the slot 164 of the motor cover plate 17 will not cause magnetic flux leakage.
相对于传统的开关电机，本发明实施例的开关电机10磁路闭合，磁能利用率更高，在相同的功率下，能够输出更高的扭矩，并且可以根据应用场合的实际需要，通过调节磁隙或者轭铁14的形状，设计合适的电机保持力和输出扭矩。Compared with the traditional switching motor, the magnetic circuit of the switching motor 10 of the embodiment of the present invention is closed, the utilization rate of magnetic energy is higher, and higher torque can be output under the same power, and the magnetic circuit can be adjusted according to the actual needs of the application. The gap or the shape of the yoke 14 should be designed with appropriate motor holding force and output torque.
本发明实施例的开关电机10的电磁结构设计，保证了电机断电自保持以及低功率输出和高扭矩，并且，其结构紧凑、简单。而且，可以通过优化电机结构来自主调节电机在特定功率下的出力和保持力。相对于传统的开关电机来说，本发明实施例的开关电机10的重量和体积大大减小，同时采用电磁电机直驱的方式，简化了结构设计，提高了开关的寿命，与传统的开关电机相比，在相同的功率下，本发明实施例的开关电机10可输出更高的扭矩，极大提升了开关速度。The electromagnetic structure design of the switch motor 10 in the embodiment of the present invention ensures the self-holding of the motor when power is off, low power output and high torque, and its structure is compact and simple. Moreover, the output and holding force of the motor at a specific power can be adjusted from the main by optimizing the motor structure. Compared with the traditional switching motor, the weight and volume of the switching motor 10 of the embodiment of the present invention are greatly reduced. At the same time, the electromagnetic motor is directly driven, which simplifies the structure design and improves the service life of the switch. In comparison, under the same power, the switching motor 10 of the embodiment of the present invention can output a higher torque, which greatly improves the switching speed.
另外，本发明实施例的开关电机10的控制简单，通过在线圈15两端通正反电流即可实现开关的开启和闭合。In addition, the control of the switch motor 10 of the embodiment of the present invention is simple, and the switch can be opened and closed by passing positive and negative currents at both ends of the coil 15.
本发明实施例的上述开关电机10可以作为快门电机10来使用。本发明实施例还提供了一种快门装置1。图6至图11揭示了本发明一个实施 例的快门装置1。如图6至图11所示，本发明一个实施例的快门装置1包括快门电机10、快门基座20及快门叶片30。快门电机10可以采用上述的开关电机10。快门电机10安装于快门基座20上，快门叶片30连动于快门电机10。The above-mentioned switch motor 10 of the embodiment of the present invention can be used as a shutter motor 10. The embodiment of the present invention also provides a shutter device 1. Figures 6 to 11 show a shutter device 1 according to an embodiment of the present invention. As shown in FIGS. 6 to 11, the shutter device 1 according to an embodiment of the present invention includes a shutter motor 10, a shutter base 20 and a shutter blade 30. The shutter motor 10 may adopt the above-mentioned switch motor 10. The shutter motor 10 is installed on the shutter base 20, and the shutter blade 30 is linked to the shutter motor 10.
本发明实施例采用低功率快门电机10直驱快门叶片30的方式，减少了机械及硬件的体积和重量。In the embodiment of the present invention, the low-power shutter motor 10 directly drives the shutter blade 30, which reduces the volume and weight of machinery and hardware.
在一些实施例中，如图6至图8所示，快门电机10包括多个，多个快门电机10均匀布置在快门基座20上。快门基座20具有通光孔201，多个快门电机10沿通光孔201呈环形分布。多个快门电机10具有相同的结构。在一个实施例中，快门电机10包括五个。In some embodiments, as shown in FIGS. 6 to 8, the shutter motor 10 includes a plurality of shutter motors 10, and the plurality of shutter motors 10 are uniformly arranged on the shutter base 20. The shutter base 20 has a light-passing hole 201, and a plurality of shutter motors 10 are distributed in a ring shape along the light-passing hole 201. The multiple shutter motors 10 have the same structure. In one embodiment, the shutter motor 10 includes five.
本发明实施例的快门装置1的设计及摆放充分考虑了镜头的结构形式，与传统的快门装置相比，本发明实施例的快门装置1在体积和重量等方面均具有优势。The design and placement of the shutter device 1 of the embodiment of the present invention fully consider the structure of the lens. Compared with the traditional shutter device, the shutter device 1 of the embodiment of the present invention has advantages in terms of volume and weight.
图6示出快门装置1在全开状态下的正面示意图；图7示出快门装置1在半开状态下的正面示意图；图8示出快门装置1在全闭状态下的正面示意图；图9为快门装置1在全闭状态下的背面示意图。图6至图8示出了本发明实施例的快门电机10的开关全过程。当快门电机10位于第一稳定位置时，永磁铁12上的挡止部121位于图6所示的位置，永磁铁12上的挡止部121被电机基座16的第一限位部161所限位，此时，本发明实施例的快门装置1处于图6所示的全开状态。当快门电机10位于第二稳定位置时，永磁铁12上的挡止部121旋转到图8所示的位置，永磁铁12上的挡止部121被电机基座16的第二限位部162所限位，快门叶片30共同配合实现快门电机10的闭合，本发明实施例的快门装置1处于图8和图9所示的全闭状态。当快门电机10从第一稳定位置向第二稳定位置或者从第二稳定位置向第一稳定位置变换时，快门电机10的永磁铁12上的连杆123推动同步环40运动，同步环40驱动快门叶片30转动，永磁铁12上的挡 止部121在第一限位部161和第二限位部162之间旋转，例如图7示出了快门装置1处于半开状态以及此时永磁铁12上的挡止部121所在的位置。6 shows a front schematic view of the shutter device 1 in a fully open state; FIG. 7 shows a front schematic view of the shutter device 1 in a half-open state; FIG. 8 shows a front schematic view of the shutter device 1 in a fully closed state; FIG. 9 It is a schematic diagram of the back of the shutter device 1 in a fully closed state. 6 to 8 show the entire switching process of the shutter motor 10 according to the embodiment of the present invention. When the shutter motor 10 is in the first stable position, the stop portion 121 on the permanent magnet 12 is located at the position shown in FIG. 6, and the stop portion 121 on the permanent magnet 12 is blocked by the first stop portion 161 of the motor base 16. At this time, the shutter device 1 of the embodiment of the present invention is in the fully open state shown in FIG. 6. When the shutter motor 10 is in the second stable position, the stop portion 121 on the permanent magnet 12 rotates to the position shown in FIG. 8, and the stop portion 121 on the permanent magnet 12 is blocked by the second stop portion 162 of the motor base 16. When the position is limited, the shutter blade 30 cooperates to realize the closing of the shutter motor 10, and the shutter device 1 of the embodiment of the present invention is in the fully closed state shown in FIGS. 8 and 9. When the shutter motor 10 changes from the first stable position to the second stable position or from the second stable position to the first stable position, the connecting rod 123 on the permanent magnet 12 of the shutter motor 10 pushes the synchronization ring 40 to move, and the synchronization ring 40 drives The shutter blade 30 rotates, and the stop part 121 on the permanent magnet 12 rotates between the first stop part 161 and the second stop part 162. For example, FIG. 7 shows that the shutter device 1 is in a half-open state and the permanent magnet at this time 12 where the stop 121 is located.
如图10所示，在一些实施例中，本发明实施例的快门装置1还可以包括同步环40。图10和图11示出本发明实施例的快门电机10通过同步环40驱动快门叶片30的示意图。快门电机10的永磁铁12上的连杆123驱动同步环40来带动快门叶片30运动，从而实现快门的打开与关闭。As shown in FIG. 10, in some embodiments, the shutter device 1 of the embodiment of the present invention may further include a synchronization ring 40. 10 and 11 show schematic diagrams of the shutter motor 10 driving the shutter blade 30 through the synchronization ring 40 according to the embodiment of the present invention. The connecting rod 123 on the permanent magnet 12 of the shutter motor 10 drives the synchronization ring 40 to drive the shutter blade 30 to move, so as to realize the opening and closing of the shutter.
本发明实施例的快门装置1通过同步环40来间接驱动快门叶片30，提供整体输出扭矩，增大了总输出扭矩，同时，通过同步环40，保证快门叶片30之间的机械同步。The shutter device 1 of the embodiment of the present invention indirectly drives the shutter blades 30 through the synchronization ring 40 to provide the overall output torque and increase the total output torque. At the same time, the synchronization ring 40 ensures the mechanical synchronization between the shutter blades 30.
如图11所示，在一些实施例中，快门叶片30包括第一叶片31和第二叶片32，快门电机10的永磁铁12上的连杆123驱动同步环40来同时带动第一叶片31和第二叶片32转动。通过采用连杆驱动同步环的形式，能使电机的力更加均匀地传递到每一叶片上，有效地统一各叶片的开闭动作。As shown in FIG. 11, in some embodiments, the shutter blade 30 includes a first blade 31 and a second blade 32. The connecting rod 123 on the permanent magnet 12 of the shutter motor 10 drives the synchronization ring 40 to simultaneously drive the first blade 31 and the second blade 32. The second blade 32 rotates. By adopting the form of connecting rod to drive the synchronizing ring, the force of the motor can be transmitted to each blade more evenly, and the opening and closing actions of each blade can be unified effectively.
在一些实施例中，快门叶片30包括五组，每一组快门叶片30包括第一叶片31和第二叶片32，五组快门叶片30配合实现快门的开启或闭合，从而减小整体所需的转动惯量和快门体积。同时，五组快门叶片30的配置能在满足光学设计需求的同时加快快门的开闭速度，进一步提高快门效率。In some embodiments, the shutter blades 30 include five groups, and each group of shutter blades 30 includes a first blade 31 and a second blade 32. The five groups of shutter blades 30 cooperate to realize the opening or closing of the shutter, thereby reducing the overall requirement. Moment of inertia and shutter volume. At the same time, the configuration of the five sets of shutter blades 30 can speed up the opening and closing speed of the shutter while meeting the requirements of optical design, and further improve the shutter efficiency.
本发明实施例的快门装置1可以实现大口径的低功率(例如平均200W以下)的高速(例如1/4000s以上)快门速度，为高速精确的快门驱动提供强劲的动力源。本发明实施例的快门装置1在全开或者全闭位置，自带断电自保持力，保证快门叶片30处于稳态。本发明实施例的快门装置1的控制简单，在线圈15两端通正反电流即可实现快门电机10的开关。本发明实施例的快门装置1具有低功率、大扭矩输出、大幅提升快门速度等优势。The shutter device 1 of the embodiment of the present invention can realize a large-aperture, low-power (for example, an average of less than 200W) and a high-speed (for example, more than 1/4000s) shutter speed, and provide a powerful power source for high-speed and accurate shutter driving. The shutter device 1 of the embodiment of the present invention is in the fully open or fully closed position, and has its own power-off and self-retaining power to ensure that the shutter blade 30 is in a stable state. The control of the shutter device 1 of the embodiment of the present invention is simple, and the shutter motor 10 can be switched by passing positive and negative currents at both ends of the coil 15. The shutter device 1 of the embodiment of the present invention has the advantages of low power, large torque output, and greatly increased shutter speed.
本发明实施例还提供了一种摄像装置。该摄像装置包括感光元件(未示出)及如上所述的快门装置1。本发明实施例的摄像装置可以包括相机，本发明实施例的摄像装置也可以应用于光刻机、机器视觉、安防监控、车载记录仪、医学影像等成像领域。The embodiment of the present invention also provides a camera device. The imaging device includes a photosensitive element (not shown) and the shutter device 1 as described above. The imaging device of the embodiment of the present invention may include a camera, and the imaging device of the embodiment of the present invention may also be applied to imaging fields such as photoetching machines, machine vision, security monitoring, vehicle recorders, and medical imaging.
本发明实施例的摄像装置具有与上述的快门装置1相类似的有益技术效果，故，在此不再赘述。The imaging device of the embodiment of the present invention has beneficial technical effects similar to those of the shutter device 1 described above, so it will not be repeated here.
在本文中，术语“某些实施例”、“一个实施例”、“另一个实施例”、“一些实施例”或“另一些实施例”等的描述意指结合所述实施例描述的具体特征、结构、材料或者条件包含于本发明实施例的至少一个实施例中。在本文中，对上述术语的示意性表述不一定指的是相同实施例。而且，本文中上面所描述的具体特征、结构、材料或者条件可以在任何的一个或多个实施例中以合适的方式结合。In this document, the descriptions of the terms "certain embodiments", "one embodiment", "another embodiment", "some embodiments" or "other embodiments" etc. mean specific descriptions in conjunction with the described embodiments. Features, structures, materials, or conditions are included in at least one of the embodiments of the present invention. In this document, the schematic representation of the above-mentioned terms does not necessarily refer to the same embodiment. Moreover, the specific features, structures, materials or conditions described above in this document can be combined in any one or more embodiments in a suitable manner.
需要说明的是，在本文中，诸如“第一”和“第二”等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。It should be noted that in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these There is any such actual relationship or sequence between entities or operations. The terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements that are not explicitly listed. Elements, or also include elements inherent to such processes, methods, articles, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article, or equipment that includes the element.
以上对本发明实施例所提供的开关电机10、快门装置1及摄像装置进行了详细介绍，本文中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想，本说明书内容不应理解为对本发明的限制。同时，对于本领域的一般技术人员，依据本发明的思想，可以在具体实施方式及应用范围上做出任何修 改、等同替换或改进等，其均应包含在本发明的权利要求书的范围之内。The switch motor 10, the shutter device 1 and the camera device provided by the embodiments of the present invention are described in detail above. Specific examples are used in this article to explain the principles and implementations of the present invention. The description of the above embodiments is only for help To understand the method and core idea of the present invention, the content of this specification should not be construed as a limitation to the present invention. At the same time, for those of ordinary skill in the art, based on the ideas of the present invention, any modification, equivalent replacement or improvement, etc., can be made in the specific implementation and the scope of application, which should be included in the scope of the claims of the present invention. Inside.

Claims (92)

  1. 一种开关电机，其特征在于：其包括：A switch motor is characterized in that it comprises:
    永磁铁，所述永磁铁包括转轴和永磁体，所述永磁体连接于所述转轴上；及A permanent magnet, the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft; and
    电磁铁，所述电磁铁包括轭铁和线圈，所述线圈环绕于所述轭铁上；An electromagnet, the electromagnet including a yoke and a coil, the coil is surrounding the yoke;
    其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  2. 如权利要求1所述的开关电机，其特征在于：所述第二方向的力推动所述永磁铁沿着所述第二方向转动。The switching motor of claim 1, wherein the force in the second direction pushes the permanent magnet to rotate along the second direction.
  3. 如权利要求1所述的开关电机，其特征在于：所述轭铁包括相对的第一端和第二端，所述第一端和第二端之间具有开口，所述线圈包括两个，两个所述线圈通过所述开口分别装配于所述轭铁的所述第一端和所述第二端上。The switch motor according to claim 1, wherein the yoke includes a first end and a second end opposite to each other, an opening is provided between the first end and the second end, and the coil includes two, The two coils are respectively assembled on the first end and the second end of the yoke through the opening.
  4. 如权利要求3所述的开关电机，其特征在于：所述永磁铁位于所述轭铁的所述开口中。The switching motor according to claim 3, wherein the permanent magnet is located in the opening of the yoke.
  5. 如权利要求4所述的开关电机，其特征在于：所述永磁铁的旋转轴线位于所述开口的中心位置。The switch motor according to claim 4, wherein the rotation axis of the permanent magnet is located at the center of the opening.
  6. 如权利要求3所述的开关电机，其特征在于：所述轭铁在与所述开口相对的一侧具有向外的凸出部。The switching motor according to claim 3, wherein the yoke has an outward protrusion on a side opposite to the opening.
  7. 如权利要求6所述的开关电机，其特征在于：所述凸出部的中轴线平行于所述轭铁的中轴线。The switch motor according to claim 6, wherein the central axis of the protruding portion is parallel to the central axis of the yoke.
  8. 如权利要求6所述的开关电机，其特征在于：所述凸出部的长度大于或等于电机直径。7. The switching motor of claim 6, wherein the length of the protruding portion is greater than or equal to the diameter of the motor.
  9. 如权利要求6所述的开关电机，其特征在于：所述凸出部的长度小于或等于所述开口的长度。7. The switching motor of claim 6, wherein the length of the protruding portion is less than or equal to the length of the opening.
  10. 如权利要求1所述的开关电机，其特征在于：所述开关电机具有第一稳定位置和第二稳定位置，所述第一稳定位置时开关处于开启状态，所述第二稳定位置时开关处于闭合状态。The switch motor of claim 1, wherein the switch motor has a first stable position and a second stable position, the switch is in the open state when the first stable position is, and the switch is in the second stable position Closed state.
  11. 如权利要求10所述的开关电机，其特征在于：所述开关电机处于所述第一稳定位置和所述第二稳定位置时，所述线圈不通电；所述开关电机由所述第一稳定位置变换为所述第二稳定位置时，所述线圈通正向电流；所述开关电机由所述第二稳定位置变换为所述第一稳定位置时，所述线圈通反向电流。The switch motor of claim 10, wherein when the switch motor is in the first stable position and the second stable position, the coil is not energized; the switch motor is controlled by the first stable position. When the position is changed to the second stable position, the coil passes forward current; when the switch motor is changed from the second stable position to the first stable position, the coil passes reverse current.
  12. 如权利要求10所述的开关电机，其特征在于：在所述开关电机处于所述第一稳定位置时，所述永磁铁的磁场方向与所述轭铁的中轴线保持预定的偏置角度。10. The switching motor of claim 10, wherein when the switching motor is in the first stable position, the magnetic field direction of the permanent magnet maintains a predetermined offset angle with the central axis of the yoke.
  13. 如权利要求12所述的开关电机，其特征在于：所述偏置角度大于0度小于90度。The switch motor of claim 12, wherein the offset angle is greater than 0 degrees and less than 90 degrees.
  14. 如权利要求13所述的开关电机，其特征在于：所述偏置角度在10度到20度的范围内。The switching motor according to claim 13, wherein the offset angle is in the range of 10 degrees to 20 degrees.
  15. 如权利要求10所述的开关电机，其特征在于：所述开关电机还包括电机基座，所述永磁铁具有挡止部，所述电机基座具有第一限位部，在所述开关电机处于所述第一稳定位置时，所述永磁铁的所述挡止部被所述第一方向的力限位于所述电机基座的所述第一限位部。The switch motor according to claim 10, wherein the switch motor further comprises a motor base, the permanent magnet has a stop part, the motor base has a first limit part, and the switch motor When in the first stable position, the stopping portion of the permanent magnet is limited to the first limiting portion of the motor base by the force in the first direction.
  16. 如权利要求15所述的开关电机，其特征在于：所述电机基座还包括第二限位部，在所述开关电机处于所述第二稳定位置时，所述永磁铁的所述挡止部被所述电机基座的所述第二限位部所限位。The switch motor of claim 15, wherein the motor base further comprises a second limit part, and when the switch motor is in the second stable position, the stopper of the permanent magnet The part is restricted by the second restricting part of the motor base.
  17. 如权利要求15所述的开关电机，其特征在于：所述挡止部的旋转角度在0度到120度的范围内。The switch motor according to claim 15, wherein the rotation angle of the stop portion is in the range of 0 degrees to 120 degrees.
  18. 如权利要求17所述的开关电机，其特征在于：所述挡止部的旋转角度在0度到70度的范围内。The switch motor according to claim 17, wherein the rotation angle of the stopper is in the range of 0 degrees to 70 degrees.
  19. 如权利要求15所述的开关电机，其特征在于：所述挡止部部分 凸出于所述轭铁之外。The switching motor according to claim 15, wherein the stop portion partially protrudes from the yoke.
  20. 如权利要求15所述的开关电机，其特征在于：所述永磁铁还包括连杆，所述连杆平行于所述转轴设置，且所述连杆连接于所述挡止部背离所述转轴的一端。The switch motor according to claim 15, wherein the permanent magnet further comprises a connecting rod, the connecting rod is arranged parallel to the rotating shaft, and the connecting rod is connected to the stopper away from the rotating shaft One end.
  21. 如权利要求15所述的开关电机，其特征在于：所述永磁铁还包括安装部，所述永磁体固定于所述安装部的上方，所述挡止部凸出于所述安装部的外侧。The switch motor according to claim 15, wherein the permanent magnet further comprises a mounting portion, the permanent magnet is fixed above the mounting portion, and the blocking portion protrudes from the outside of the mounting portion .
  22. 如权利要求1所述的开关电机，其特征在于：所述轭铁由软磁性材料制成。The switching motor according to claim 1, wherein the yoke is made of soft magnetic material.
  23. 如权利要求1所述的开关电机，其特征在于：其还包括电机盖板和电机基座，所述电机盖板固定于所述电机基座上，所述电机盖板和所述电机基座之间形成收容空间，所述永磁铁和所述电磁铁位于所述收容空间内。The switch motor of claim 1, further comprising a motor cover and a motor base, the motor cover is fixed on the motor base, the motor cover and the motor base An accommodating space is formed therebetween, and the permanent magnet and the electromagnet are located in the accommodating space.
  24. 如权利要求23所述的开关电机，其特征在于：所述电机盖板包括定位孔和定位柱中的一者，所述电机基座包括定位孔和定位柱中的另一者，所述定位孔与所述定位柱配合，从而将所述电机盖板定位于所述电机基座上。The switch motor of claim 23, wherein the motor cover includes one of a positioning hole and a positioning post, the motor base includes the other of a positioning hole and a positioning post, and the positioning The hole is matched with the positioning post, so that the motor cover plate is positioned on the motor base.
  25. 如权利要求23所述的开关电机，其特征在于：所述电机盖板包括中空部，所述中空部定位所述线圈。The switch motor according to claim 23, wherein the motor cover includes a hollow part, and the hollow part locates the coil.
  26. 如权利要求25所述的开关电机，其特征在于：所述中空部包括两个且对称设置。The switch motor according to claim 25, wherein the hollow part includes two and is symmetrically arranged.
  27. 如权利要求23所述的开关电机，其特征在于：所述电机盖板和所述电机基座中的至少一个具有限位孔，所述转轴可转动地收容在所述限位孔中。The switch motor according to claim 23, wherein at least one of the motor cover and the motor base has a limiting hole, and the rotating shaft is rotatably received in the limiting hole.
  28. 如权利要求23所述的开关电机，其特征在于：所述电机基座在靠近所述线圈安装的部位设有开槽。The switch motor according to claim 23, wherein the motor base is provided with a slot at a position close to the coil installation.
  29. 如权利要求1所述的开关电机，其特征在于：所述开关电机包括 快门电机。The switch motor of claim 1, wherein the switch motor comprises a shutter motor.
  30. 一种快门装置，其特征在于：其包括：A shutter device, characterized in that it comprises:
    快门基座；Shutter base
    快门叶片；以及Shutter blade; and
    快门电机，所述快门电机安装于所述快门基座上，所述快门叶片连动于所述快门电机，所述快门电机包括：A shutter motor, the shutter motor is installed on the shutter base, the shutter blade is linked to the shutter motor, and the shutter motor includes:
    永磁铁，所述永磁铁包括转轴和永磁体，所述永磁体连接于所述转轴上；及A permanent magnet, the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft; and
    电磁铁，所述电磁铁包括轭铁和线圈，所述线圈环绕于所述轭铁上；An electromagnet, the electromagnet including a yoke and a coil, the coil is surrounding the yoke;
    其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  31. 如权利要求30所述的快门装置，其特征在于：所述第二方向的力推动所述永磁铁沿着所述第二方向转动。The shutter device of claim 30, wherein the force in the second direction pushes the permanent magnet to rotate along the second direction.
  32. 如权利要求30所述的快门装置，其特征在于：所述轭铁包括相对的第一端和第二端，所述第一端和第二端之间具有开口，所述线圈包括两个，两个所述线圈通过所述开口分别装配于所述轭铁的所述第一端和所述第二端上。The shutter device of claim 30, wherein the yoke includes a first end and a second end opposite to each other, an opening is provided between the first end and the second end, and the coil includes two, The two coils are respectively assembled on the first end and the second end of the yoke through the opening.
  33. 如权利要求32所述的快门装置，其特征在于：所述永磁铁位于所述轭铁的所述开口中。The shutter device according to claim 32, wherein the permanent magnet is located in the opening of the yoke.
  34. 如权利要求33所述的快门装置，其特征在于：所述永磁铁的旋转轴线位于所述开口的中心位置。The shutter device according to claim 33, wherein the rotation axis of the permanent magnet is located at the center of the opening.
  35. 如权利要求32所述的快门装置，其特征在于：所述轭铁在与所述开口相对的一侧具有向外的凸出部。The shutter device according to claim 32, wherein the yoke has an outward protrusion on a side opposite to the opening.
  36. 如权利要求35所述的快门装置，其特征在于：所述凸出部的中轴线平行于所述轭铁的中轴线。The shutter device according to claim 35, wherein the central axis of the protrusion is parallel to the central axis of the yoke.
  37. 如权利要求35所述的快门装置，其特征在于：所述凸出部的长度大于或等于电机直径。The shutter device according to claim 35, wherein the length of the protruding part is greater than or equal to the diameter of the motor.
  38. 如权利要求35所述的快门装置，其特征在于：所述凸出部的长度小于或等于所述开口的长度。The shutter device according to claim 35, wherein the length of the protruding portion is less than or equal to the length of the opening.
  39. 如权利要求30所述的快门装置，其特征在于：所述快门电机具有第一稳定位置和第二稳定位置，所述第一稳定位置时快门处于开启状态，所述第二稳定位置时快门处于闭合状态。The shutter device of claim 30, wherein the shutter motor has a first stable position and a second stable position, the shutter is in the open state when the first stable position is, and the shutter is in the second stable position Closed state.
  40. 如权利要求39所述的快门装置，其特征在于：所述快门电机处于所述第一稳定位置和所述第二稳定位置时，所述线圈不通电；所述快门电机由所述第一稳定位置变换为所述第二稳定位置时，所述线圈通正向电流；所述快门电机由所述第二稳定位置变换为所述第一稳定位置时，所述线圈通反向电流。The shutter device according to claim 39, wherein when the shutter motor is in the first stable position and the second stable position, the coil is not energized; the shutter motor is controlled by the first stable position. When the position is changed to the second stable position, the coil passes forward current; when the shutter motor is changed from the second stable position to the first stable position, the coil passes reverse current.
  41. 如权利要求39所述的快门装置，其特征在于：在所述快门电机处于所述第一稳定位置时，所述永磁铁的磁场方向与所述轭铁的中轴线保持预定的偏置角度。The shutter device according to claim 39, wherein when the shutter motor is in the first stable position, the direction of the magnetic field of the permanent magnet maintains a predetermined offset angle with the central axis of the yoke.
  42. 如权利要求41所述的快门装置，其特征在于：所述偏置角度大于0度小于90度。The shutter device of claim 41, wherein the offset angle is greater than 0 degrees and less than 90 degrees.
  43. 如权利要求42所述的快门装置，其特征在于：所述偏置角度在10度到20度的范围内。The shutter device according to claim 42, wherein the offset angle is in the range of 10 degrees to 20 degrees.
  44. 如权利要求39所述的快门装置，其特征在于：所述快门电机还包括电机基座，所述永磁铁具有挡止部，所述电机基座具有第一限位部，在所述快门电机处于所述第一稳定位置时，所述永磁铁的所述挡止部被所述第一方向的力限位于所述电机基座的所述第一限位部。The shutter device according to claim 39, wherein the shutter motor further comprises a motor base, the permanent magnet has a stopping part, the motor base has a first limiting part, and the shutter motor When in the first stable position, the stopping portion of the permanent magnet is limited to the first limiting portion of the motor base by the force in the first direction.
  45. 如权利要求44所述的快门装置，其特征在于：所述电机基座还包括第二限位部，在所述快门电机处于所述第二稳定位置时，所述永磁铁的所述挡止部被所述电机基座的所述第二限位部所限位。The shutter device according to claim 44, wherein the motor base further comprises a second limiting portion, and when the shutter motor is in the second stable position, the stopper of the permanent magnet The part is restricted by the second restricting part of the motor base.
  46. 如权利要求44所述的快门装置，其特征在于：所述挡止部的旋 转角度在0度到120度的范围内。The shutter device according to claim 44, wherein the rotation angle of the stopper is in the range of 0 degrees to 120 degrees.
  47. 如权利要求46所述的快门装置，其特征在于：所述挡止部的旋转角度在0度到70度的范围内。The shutter device according to claim 46, wherein the rotation angle of the stopper is in the range of 0 degrees to 70 degrees.
  48. 如权利要求44所述的快门装置，其特征在于：所述挡止部部分凸出于所述轭铁之外。The shutter device according to claim 44, wherein the stop portion partially protrudes from the yoke.
  49. 如权利要求44所述的快门装置，其特征在于：所述永磁铁还包括连杆，所述连杆平行于所述转轴设置，且所述连杆连接于所述挡止部背离所述转轴的一端。The shutter device according to claim 44, wherein the permanent magnet further comprises a connecting rod, the connecting rod is arranged parallel to the rotating shaft, and the connecting rod is connected to the stopper away from the rotating shaft One end.
  50. 如权利要求44所述的快门装置，其特征在于：所述永磁铁还包括安装部，所述永磁体固定于所述安装部的上方，所述挡止部凸出于所述安装部的外侧。The shutter device according to claim 44, wherein the permanent magnet further comprises a mounting portion, the permanent magnet is fixed above the mounting portion, and the stopping portion protrudes from the outside of the mounting portion .
  51. 如权利要求30所述的快门装置，其特征在于：所述轭铁由软磁性材料制成。The shutter device according to claim 30, wherein the yoke is made of soft magnetic material.
  52. 如权利要求30所述的快门装置，其特征在于：其还包括电机盖板和电机基座，所述电机盖板固定于所述电机基座上，所述电机盖板和所述电机基座之间形成收容空间，所述永磁铁和所述电磁铁位于所述收容空间内。The shutter device of claim 30, further comprising a motor cover and a motor base, the motor cover is fixed on the motor base, the motor cover and the motor base An accommodating space is formed therebetween, and the permanent magnet and the electromagnet are located in the accommodating space.
  53. 如权利要求52所述的快门装置，其特征在于：所述电机盖板包括定位孔和定位柱中的一者，所述电机基座包括定位孔和定位柱中的另一者，所述定位孔与所述定位柱配合，从而将所述电机盖板定位于所述电机基座上。The shutter device of claim 52, wherein the motor cover includes one of a positioning hole and a positioning post, the motor base includes the other of a positioning hole and a positioning post, and the positioning The hole is matched with the positioning post, so that the motor cover plate is positioned on the motor base.
  54. 如权利要求52所述的快门装置，其特征在于：所述电机盖板包括中空部，所述中空部定位所述线圈。The shutter device of claim 52, wherein the motor cover includes a hollow portion, and the hollow portion positions the coil.
  55. 如权利要求54所述的快门装置，其特征在于：所述中空部包括两个且对称设置。The shutter device according to claim 54, wherein the hollow part includes two and is symmetrically arranged.
  56. 如权利要求52所述的快门装置，其特征在于：所述电机盖板和所述电机基座中的至少一个具有限位孔，所述转轴可转动地收容在所述限 位孔中。The shutter device according to claim 52, wherein at least one of the motor cover and the motor base has a limiting hole, and the rotating shaft is rotatably received in the limiting hole.
  57. 如权利要求52所述的快门装置，其特征在于：所述电机基座在靠近所述线圈安装的部位设有开槽。The shutter device according to claim 52, wherein the motor base is provided with a slot at a position close to the installation of the coil.
  58. 如权利要求30所述的快门装置，其特征在于：所述快门电机包括多个，多个所述快门电机均匀布置在所述快门基座上。The shutter device of claim 30, wherein the shutter motor comprises a plurality of shutter motors, and the plurality of shutter motors are uniformly arranged on the shutter base.
  59. 如权利要求58所述的快门装置，其特征在于：所述快门基座具有通光孔，多个所述快门电机沿所述通光孔呈环形分布。The shutter device according to claim 58, wherein the shutter base has a light-passing hole, and a plurality of the shutter motors are distributed in a ring shape along the light-passing hole.
  60. 如权利要求58所述的快门装置，其特征在于：多个所述快门电机具有相同的结构。The shutter device according to claim 58, wherein a plurality of said shutter motors have the same structure.
  61. 如权利要求58所述的快门装置，其特征在于：所述快门电机包括五个。The shutter device according to claim 58, wherein the shutter motor includes five.
  62. 如权利要求30所述的快门装置，其特征在于：所述快门装置还包括同步环，所述永磁铁还包括连杆，所述连杆平行于所述转轴设置，所述连杆驱动所述同步环来带动所述快门叶片运动。The shutter device of claim 30, wherein the shutter device further comprises a synchronization ring, the permanent magnet further comprises a connecting rod, the connecting rod is arranged parallel to the rotating shaft, and the connecting rod drives the The synchronization ring drives the shutter blades to move.
  63. 如权利要求62所述的快门装置，其特征在于：所述快门叶片包括第一叶片和第二叶片，所述连杆驱动所述同步环来同时带动所述第一叶片和所述第二叶片转动。The shutter device according to claim 62, wherein the shutter blade includes a first blade and a second blade, and the connecting rod drives the synchronization ring to simultaneously drive the first blade and the second blade Rotate.
  64. 如权利要求63所述的快门装置，其特征在于：所述快门叶片包括五组，每一组快门叶片包括所述第一叶片和所述第二叶片，所述五组快门叶片配合实现快门开启或闭合。The shutter device according to claim 63, wherein the shutter blades comprise five groups, each group of shutter blades comprises the first blade and the second blade, and the five groups of shutter blades cooperate to realize the shutter opening Or closed.
  65. 一种摄像装置，其特征在于：其包括：A camera device, characterized in that it comprises:
    感光元件；Photosensitive element
    快门装置，所述快门装置包括：A shutter device, the shutter device includes:
    快门基座；Shutter base
    快门叶片；以及Shutter blade; and
    快门电机，所述快门电机安装于所述快门基座上，所述快门叶片连动于所述快门电机，所述快门电机包括：A shutter motor, the shutter motor is installed on the shutter base, the shutter blade is linked to the shutter motor, and the shutter motor includes:
    永磁铁，所述永磁铁包括转轴和永磁体，所述永磁体连接于所述转轴上；及A permanent magnet, the permanent magnet includes a rotating shaft and a permanent magnet, and the permanent magnet is connected to the rotating shaft; and
    电磁铁，所述电磁铁包括轭铁和线圈，所述线圈环绕于所述轭铁上；An electromagnet, the electromagnet including a yoke and a coil, the coil is surrounding the yoke;
    其中，所述线圈未通电时，所述永磁铁受到所述电磁铁沿着第一方向的力；所述线圈通电时，所述永磁铁受到所述电磁铁沿着第二方向的力，所述第二方向与所述第一方向相反。Wherein, when the coil is not energized, the permanent magnet receives the force of the electromagnet along the first direction; when the coil is energized, the permanent magnet receives the force of the electromagnet along the second direction, so The second direction is opposite to the first direction.
  66. 如权利要求65所述的摄像装置，其特征在于：所述第二方向的力推动所述永磁铁沿着所述第二方向转动。The imaging device of claim 65, wherein the force in the second direction pushes the permanent magnet to rotate in the second direction.
  67. 如权利要求65所述的摄像装置，其特征在于：所述轭铁包括相对的第一端和第二端，所述第一端和第二端之间具有开口，所述线圈包括两个，两个所述线圈通过所述开口分别装配于所述轭铁的所述第一端和所述第二端上。The imaging device according to claim 65, wherein the yoke includes a first end and a second end opposite to each other, an opening is formed between the first end and the second end, and the coil includes two, The two coils are respectively assembled on the first end and the second end of the yoke through the opening.
  68. 如权利要求67所述的摄像装置，其特征在于：所述永磁铁位于所述轭铁的所述开口中。The imaging device according to claim 67, wherein the permanent magnet is located in the opening of the yoke.
  69. 如权利要求68所述的摄像装置，其特征在于：所述永磁铁的旋转轴线位于所述开口的中心位置。The imaging device according to claim 68, wherein the rotation axis of the permanent magnet is located at the center of the opening.
  70. 如权利要求67所述的摄像装置，其特征在于：所述轭铁在与所述开口相对的一侧具有向外的凸出部。The imaging device according to claim 67, wherein the yoke has an outward protrusion on a side opposite to the opening.
  71. 如权利要求70所述的摄像装置，其特征在于：所述凸出部的中轴线平行于所述轭铁的中轴线。The imaging device according to claim 70, wherein the central axis of the protruding portion is parallel to the central axis of the yoke.
  72. 如权利要求70所述的摄像装置，其特征在于：所述凸出部的长度大于或等于电机直径。The imaging device of claim 70, wherein the length of the protruding portion is greater than or equal to the diameter of the motor.
  73. 如权利要求70所述的摄像装置，其特征在于：所述凸出部的长度小于或等于所述开口的长度。The imaging device according to claim 70, wherein the length of the protruding portion is less than or equal to the length of the opening.
  74. 如权利要求65所述的摄像装置，其特征在于：所述快门电机具有第一稳定位置和第二稳定位置，所述第一稳定位置时快门处于开启状态， 所述第二稳定位置时快门处于闭合状态。The imaging device of claim 65, wherein the shutter motor has a first stable position and a second stable position, the shutter is in an open state in the first stable position, and the shutter is in an open state in the second stable position. Closed state.
  75. 如权利要求74所述的摄像装置，其特征在于：所述快门电机处于所述第一稳定位置和所述第二稳定位置时，所述线圈不通电；所述快门电机由所述第一稳定位置变换为所述第二稳定位置时，所述线圈通正向电流；所述快门电机由所述第二稳定位置变换为所述第一稳定位置时，所述线圈通反向电流。The imaging device according to claim 74, wherein when the shutter motor is in the first stable position and the second stable position, the coil is not energized; the shutter motor is controlled by the first stable position. When the position is changed to the second stable position, the coil passes forward current; when the shutter motor is changed from the second stable position to the first stable position, the coil passes reverse current.
  76. 如权利要求74所述的摄像装置，其特征在于：在所述快门电机处于所述第一稳定位置时，所述永磁铁的磁场方向与所述轭铁的中轴线保持预定的偏置角度。The imaging device according to claim 74, wherein when the shutter motor is in the first stable position, the magnetic field direction of the permanent magnet maintains a predetermined offset angle with the central axis of the yoke.
  77. 如权利要求76所述的摄像装置，其特征在于：所述偏置角度大于0度小于90度。The imaging device of claim 76, wherein the offset angle is greater than 0 degrees and less than 90 degrees.
  78. 如权利要求77所述的摄像装置，其特征在于：所述偏置角度在10度到20度的范围内。The imaging device according to claim 77, wherein the offset angle is in the range of 10 degrees to 20 degrees.
  79. 如权利要求74所述的摄像装置，其特征在于：所述快门电机还包括电机基座，所述永磁铁具有挡止部，所述电机基座具有第一限位部，在所述快门电机处于所述第一稳定位置时，所述永磁铁的所述挡止部被所述第一方向的力限位于所述电机基座的所述第一限位部。The camera device according to claim 74, wherein the shutter motor further comprises a motor base, the permanent magnet has a stopping part, the motor base has a first limiting part, and the shutter motor When in the first stable position, the stopping portion of the permanent magnet is limited to the first limiting portion of the motor base by the force in the first direction.
  80. 如权利要求79所述的摄像装置，其特征在于：所述电机基座还包括第二限位部，在所述快门电机处于所述第二稳定位置时，所述永磁铁的所述挡止部被所述电机基座的所述第二限位部所限位。The camera device according to claim 79, wherein the motor base further comprises a second limiter, and when the shutter motor is in the second stable position, the stopper of the permanent magnet The part is restricted by the second restricting part of the motor base.
  81. 如权利要求79所述的摄像装置，其特征在于：所述挡止部的旋转角度在60度到180度的范围内。The imaging device according to claim 79, wherein the rotation angle of the stopper is in the range of 60 degrees to 180 degrees.
  82. 如权利要求81所述的摄像装置，其特征在于：所述挡止部的旋转角度在60度到70度的范围内。The imaging device according to claim 81, wherein the rotation angle of the stopper is in the range of 60 degrees to 70 degrees.
  83. 如权利要求79所述的摄像装置，其特征在于：所述挡止部部分凸出于所述轭铁之外。The imaging device according to claim 79, wherein the stop portion partially protrudes from the yoke.
  84. 如权利要求79所述的摄像装置，其特征在于：所述永磁铁还包 括连杆，所述连杆平行于所述转轴设置，且所述连杆连接于所述挡止部背离所述转轴的一端。The camera device according to claim 79, wherein the permanent magnet further comprises a connecting rod, the connecting rod is arranged parallel to the rotating shaft, and the connecting rod is connected to the stopper away from the rotating shaft One end.
  85. 如权利要求79所述的摄像装置，其特征在于：所述永磁铁还包括安装部，所述永磁体固定于所述安装部的上方，所述挡止部凸出于所述安装部的外侧。The imaging device of claim 79, wherein the permanent magnet further comprises a mounting portion, the permanent magnet is fixed above the mounting portion, and the stopping portion protrudes from the outer side of the mounting portion .
  86. 如权利要求65所述的摄像装置，其特征在于：所述轭铁由软磁性材料制成。The imaging device according to claim 65, wherein the yoke is made of a soft magnetic material.
  87. 如权利要求65所述的摄像装置，其特征在于：其还包括电机盖板和电机基座，所述电机盖板固定于所述电机基座上，所述电机盖板和所述电机基座之间形成收容空间，所述永磁铁和所述电磁铁位于所述收容空间内。The camera device of claim 65, further comprising a motor cover and a motor base, the motor cover is fixed on the motor base, the motor cover and the motor base An accommodating space is formed therebetween, and the permanent magnet and the electromagnet are located in the accommodating space.
  88. 如权利要求87所述的摄像装置，其特征在于：所述电机盖板包括定位孔和定位柱中的一者，所述电机基座包括定位孔和定位柱中的另一者，所述定位孔与所述定位柱配合，从而将所述电机盖板定位于所述电机基座上。The camera device of claim 87, wherein the motor cover includes one of a positioning hole and a positioning post, the motor base includes the other of a positioning hole and a positioning post, and the positioning The hole is matched with the positioning post, so that the motor cover plate is positioned on the motor base.
  89. 如权利要求87所述的摄像装置，其特征在于：所述电机盖板包括中空部，所述中空部定位所述线圈。The imaging device of claim 87, wherein the motor cover includes a hollow portion, and the hollow portion positions the coil.
  90. 如权利要求89所述的摄像装置，其特征在于：所述中空部包括两个且对称设置。The imaging device according to claim 89, wherein the hollow portion includes two and is symmetrically arranged.
  91. 如权利要求87所述的摄像装置，其特征在于：所述电机盖板和所述电机基座中的至少一个具有限位孔，所述转轴可转动地收容在所述限位孔中。The imaging device of claim 87, wherein at least one of the motor cover and the motor base has a limiting hole, and the rotating shaft is rotatably received in the limiting hole.
  92. 如权利要求87所述的摄像装置，其特征在于：所述电机基座在靠近所述线圈安装的部位设有开槽。The imaging device of claim 87, wherein the motor base is provided with a slot at a position close to the coil installation.
PCT/CN2019/120140 2019-11-22 2019-11-22 Switched electric motor, shutter device and camera device WO2021097788A1 (en)

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