Motor, shutter device, and imaging device
阅读说明:本技术 电机、快门装置及摄像装置 (Motor, shutter device, and imaging device ) 是由 朱志龙 于 2019-06-26 设计创作,主要内容包括:一种电机(10)、其应用于快门装置(1)以及具有该快门装置(1)的摄像装置,并包括具有绕组(120)的印刷电路板组件(12)、定子铁芯(13)、转子(14)以及安装在转子(14)上的磁铁(15)。印刷电路板组件(12)具有第一侧(121)和第二侧(122)。定子铁芯(13)安装于印刷电路板组件(12)的第一侧(121),绕组(120)围绕定子铁芯(13)设置。转子(14)和磁铁(15)安装于印刷电路板组件(12)的第二侧(122)并与绕组(120)间隔设置。该电机(10)具有扁平化的结构,从而利于快门装置(1)的小型化。(A motor (10) is applied to a shutter device (1) and an image pickup device having the shutter device (1), and includes a printed circuit board assembly (12) having a winding (120), a stator core (13), a rotor (14), and a magnet (15) mounted on the rotor (14). The printed circuit board assembly (12) has a first side (121) and a second side (122). A stator core (13) is mounted to a first side (121) of the printed circuit board assembly (12), and a winding (120) is disposed around the stator core (13). The rotor (14) and magnet (15) are mounted to a second side (122) of the printed circuit board assembly (12) and spaced from the windings (120). The motor (10) has a flattened structure, thereby contributing to miniaturization of the shutter device (1).)
1. A motor, its application is in the shutter device, its characterized in that: it includes:
a printed circuit board assembly having a winding, the printed circuit board assembly having a first side and a second side;
a stator core mounted to a first side of the printed circuit board assembly, the winding disposed around the stator core; and
the rotor and the magnet are arranged on the second side of the printed circuit board assembly and are arranged at intervals with the winding.
2. The electric machine of claim 1, wherein: the windings are integrated in the printed circuit board assembly.
3. The electric machine of claim 2, wherein: the windings are formed directly in the printed circuit board assembly by screen printing.
4. The electric machine of claim 2, wherein: the stator core includes a core limb around which the winding extends from a first side of the printed circuit board assembly to a second side thereof.
5. The electric machine of claim 4, wherein: the stator core further comprises a flat part, the core limb extends outwards from the flat part, and the flat part is located on the first side of the printed circuit board assembly.
6. The electric machine of claim 5, wherein: the rotor is rotatably mounted on the printed circuit board assembly through a rotating shaft and is opposite to the flat part of the stator core at intervals.
7. The electric machine of claim 6, wherein: the winding includes first subwinding, second subwinding and third subwinding, stator core the iron core post includes threely, first subwinding, second subwinding with each of third subwinding encircles an iron core post setting.
8. The electric machine of claim 7, wherein: the distances between the central connecting line of the first sub-winding and the second sub-winding and the central connecting line of the second sub-winding and the third sub-winding are equal, wherein the position of the rotor opposite to the first sub-winding and the second sub-winding is a first stable position, and the position of the rotor opposite to the second sub-winding and the third sub-winding is a second stable position.
9. The electric machine of claim 8, wherein: the first stable position is a position of the rotor in a shutter open state, and the second stable position is a position of the rotor in a shutter closed state.
10. The electric machine of claim 7, wherein: the first sub-winding, the second sub-winding and the third sub-winding are uniformly distributed around the rotating shaft.
11. The electric machine of claim 10, wherein: the magnets comprise N-S pole magnets and S-N pole magnets, and the N-S pole magnets and the S-N pole magnets are respectively opposite to the first sub-winding and the second sub-winding when the motor is in a stable state.
12. The electric machine of claim 6, wherein: the stator core is characterized by further comprising a gasket, the gasket is arranged between the rotating shaft and the positioning hole of the flat part of the stator core, and the gasket is in interference fit with the rotating shaft to prevent the rotating shaft from being axially separated.
13. The electric machine of claim 5, wherein: a heat sink is disposed between the flat portion of the stator core and the printed circuit board assembly.
14. The electric machine of claim 1, wherein: the winding, the rotor, the magnet and the stator core all include a plurality of corresponding quantity.
15. The electric machine of claim 14, wherein: the printed circuit board assembly is provided with a light through hole, and the plurality of windings, the plurality of rotors and the plurality of stator cores are all distributed in an annular mode along the light through hole of the printed circuit board.
16. The electric machine of claim 1, wherein: the windings are integrated windings that are secured to the printed circuit board assembly.
17. The electric machine of any of claims 1 to 16, wherein: it still includes:
a second printed circuit board assembly having a second winding, the second printed circuit board assembly having a first side and a second side, the rotor and the magnet being located on the second side of the second printed circuit board assembly and spaced from the second winding of the second printed circuit board assembly; and
a second stator core disposed on the first side of the second printed circuit board assembly.
18. The electric machine of claim 17, wherein: the second printed circuit board assembly having the second winding and the printed circuit board assembly having the winding have substantially the same structure.
19. The electric machine of claim 17, wherein: the second printed circuit board assembly with the second winding and the printed circuit board assembly with the winding sandwich the rotor therebetween.
20. The electric machine of claim 17, wherein: the second stator core has substantially the same structure as the stator core.
21. The electric machine of claim 17, wherein: the second stator core and the stator core clamp the second printed circuit board assembly and the printed circuit board assembly between the second stator core and the stator core.
22. The electric machine of claim 17, wherein: the positions of the second winding and the second stator core correspond to the positions of the winding and the stator core respectively.
23. The electric machine of claim 17, wherein: the number of the second windings and the number of the second stator cores correspond to the number of the windings and the number of the stator cores, respectively.
24. The electric machine of claim 17, wherein: the second winding is integrated in the second printed circuit board assembly.
25. A shutter device, characterized in that: comprising a motor according to any one of claims 1 to 24 and a shutter blade which is coupled to a rotor of the motor and is adapted to switch the light source in the exposure area when the shutter is closed, wherein, when the motor is operated, the winding is energized and the rotor rotates to effect the opening and closing of the shutter blade.
26. The shutter apparatus of claim 25, wherein: the rotor and the shutter blade are integrally formed into a rotor blade through injection molding.
27. The shutter apparatus of claim 25, wherein: the shutter blade includes a plurality of, and the rotor in the motor corresponds to the number of the shutter blades.
28. The shutter apparatus of claim 27, wherein: the shutter blades comprise at least eight shutter blades, and the eight shutter blades are matched to realize the opening and closing actions of the shutter blades.
29. An image pickup apparatus characterized in that: comprising a shutter device according to any of claims 25 to 28.
Technical Field
The embodiment of the invention relates to the technical field of imaging equipment, in particular to a motor applied to a shutter device, the shutter device and a camera device.
Background
The shutter of the camera generally includes a focal plane shutter, an inter-mirror shutter, and the like. A focal plane shutter is a shutter, commonly referred to as a rolling shutter, placed in front of the focal plane of imaging. The power released by the front curtain and the rear curtain comes from a spring and a connecting rod assembly, a speed reducing motor is used for simultaneously winding the front curtain and the rear curtain through the spring and the connecting rod assembly, and the front curtain and the rear curtain are respectively controlled by an electromagnet independently to realize the time sequence action of the front curtain and the rear curtain. The focal plane shutter is mainly applied to a single lens reflex.
The inter-mirror shutter is a shutter placed at a stop position inside the lens, and is also called a blade shutter. The blade assembly is driven by a left connecting rod mechanism and a right connecting rod mechanism which are connected in series on a rotor of the electromagnet, the rotor is provided with two stable positions (the permanent magnetic force provides self-locking force), the electromagnet is used for controlling the release and recovery of the rotor, and the counter force spring helps the electromagnet to start and brake. The inter-lens shutter is mainly applied to the portable camera and a part of the lens.
However, the conventional inter-mirror shutter generally has the defects of complex structure, large volume, heavy weight and the like.
Further, in recent years, the size of camera modules has been gradually reduced with the development of technology, but the size of the shutter drive device has always been a great obstacle that restricts the downsizing of camera modules.
Disclosure of Invention
The embodiment of the invention provides a motor, a shutter device and an image pickup device.
According to an aspect of an embodiment of the present invention, there is provided a motor applied to a shutter device. The motor includes a printed circuit board assembly having windings, a stator core, a rotor, and a magnet mounted on the rotor. The printed circuit board assembly has a first side and a second side. The stator core is installed in the first side of printed circuit board assembly, the winding surrounds stator core sets up. The rotor and the magnet are mounted to a second side of the printed circuit board assembly and spaced from the winding.
The motor of the embodiment of the invention has a flat structure, thereby being beneficial to the miniaturization of the shutter device.
According to another aspect of the embodiments of the present invention, there is provided a shutter device, comprising the motor and the shutter blade, wherein the shutter blade is linked to the rotor of the motor and used for switching the light source of the exposure area when the shutter is closed, and when the motor is operated, the winding is electrified, and the rotor rotates to realize the opening and closing of the shutter blade.
According to still another aspect of an embodiment of the present invention, there is provided an image pickup apparatus including the shutter apparatus as described above.
The shutter device and the camera device of the embodiment of the invention apply the axial flux motor adopting the printed circuit board assembly with the winding to the shutter, optimize the structure of the axial flux motor, increase the magnetic permeability, have compact and simple structure and low cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive labor.
FIG. 1 is an overall schematic view of a shutter device according to an embodiment of the present invention;
FIG. 2 is an exploded view of the shutter device shown in FIG. 1;
FIG. 3 is a rear schematic view of the shutter apparatus shown in FIG. 1 in an open state;
FIG. 4 is a rear schematic view of the shutter device shown in FIG. 1 in a closed state;
FIG. 5 is a schematic cross-sectional view of the shutter device shown in FIG. 1 taken along line A-A;
FIG. 6 is an enlarged view of the circled portion of the shutter device shown in FIG. 5;
FIG. 7 is a perspective view of a shutter device according to another embodiment of the present invention;
FIG. 8 is an exploded view of the shutter device shown in FIG. 7;
FIG. 9 is a schematic front view of the shutter apparatus shown in FIG. 7 in an open state;
FIG. 10 is a schematic cross-sectional view of the shutter device shown in FIG. 9 taken along line B-B;
fig. 11 is an enlarged view of a circle portion in the shutter device shown in fig. 10;
FIG. 12 is a side schematic view of the shutter device shown in FIG. 7;
fig. 13 is an enlarged view of a circled portion in the shutter device shown in fig. 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. Unless otherwise indicated, "front", "rear", "lower" and/or "upper" and the like are for convenience of description and are not limited to one position or one spatial orientation. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. In the present invention "capable" may mean having a capability.
The following describes in detail various embodiments of the present invention with reference to the accompanying drawings. The features of the following examples and embodiments may be combined with each other without conflict.
Fig. 1 to 6 disclose a shutter device 1 according to a first embodiment of the present invention. As shown in fig. 1 to 6, a shutter device 1 of the first embodiment of the present invention includes a motor 10 and
As shown in FIGS. 1 and 2, in some embodiments, the
The
The printed
In an embodiment of the present invention, motor 10 is an axial-flux motor. The
The motor 10 of the embodiment of the present invention adopts an axial flux motor, the plurality of
According to the embodiment of the invention, the axial flux motor 10 is used as power to directly drive the
As shown in fig. 2, the
The
As shown in fig. 5 and 6, in order to prevent the rotating shaft 17 from axially escaping, the shutter device 1 may further include a
Referring back to fig. 2, in some embodiments, the winding 120 includes a first sub-winding 1201, a second sub-winding 1202, and a third sub-winding 1203, and accordingly, the
In one embodiment, the first sub-winding 1201, the second sub-winding 1202, and the third sub-winding 1203 are evenly distributed around the rotating shaft 17.
The
However, the arrangement of the first sub-winding 1201, the second sub-winding 1202, and the third sub-winding 1203 in the winding 120 of the embodiment of the present invention should not be limited to the arrangement in the equilateral triangle. In another embodiment of the present invention, on the premise that the position where the
As shown in fig. 5 and 6, heat radiating fins 19 are provided between the flat part 131 of the
In some embodiments, the
Embodiments of the present invention increase magnetic permeability by applying axial-flux motor 10 employing printed
Fig. 7 to 13 disclose a shutter device 2 according to a second embodiment of the present invention. As shown in fig. 7 to 13, the shutter device 2 of the second embodiment of the present invention includes a
The second printed
The second winding 220 may also be integrated into the second printed
The second printed
As shown in fig. 8, in some embodiments, the second winding 220 also similarly includes a first sub-winding 2201, a second sub-winding 2202, and a third sub-winding 2203, and the first sub-winding 2201, the second sub-winding 2202, and the third sub-winding 2203 in the second winding 220 are respectively opposite to the first sub-winding 1201, the second sub-winding 1202, and the third sub-winding 1203 in the winding 120.
As shown in fig. 10 and 11 with reference to fig. 8, unlike the first embodiment, no positioning post is provided in the
The rotation shaft 17 is positioned in the flat part 131 of the
Thus, as shown in fig. 11, in the second embodiment, there is a first spacing 126 between the
When the
In some embodiments, the shutter device 2 of the second embodiment may include the
In other embodiments, the shutter device 2 of the second embodiment may further include heat dissipation fins 19 and 29, as shown in fig. 11, the heat dissipation fins 19 are disposed between the flat part 131 of the
In the
The
As used herein, the description of the terms "certain embodiments," "one embodiment," "another embodiment," "some embodiments," or "other embodiments," etc., means that a particular feature, structure, material, or condition described in connection with the embodiment is included in at least one embodiment of the invention. In this document, the schematic representations of the terms used above do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or conditions described above may be combined in any suitable manner in any one or more embodiments.
The embodiment of the invention also provides an image pickup device which can adopt the shutter devices 1 and 2 in any one of the above embodiments.
The camera device according to the embodiment of the present invention has similar advantageous technical effects to those of the shutter devices 1 and 2, and therefore, the detailed description thereof is omitted.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The motor, the shutter device and the camera device provided by the embodiments of the present invention are described in detail above, and the principle and the embodiments of the present invention are explained in detail herein by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present invention, and the content of the present description should not be construed as limiting the present invention. Meanwhile, for a person skilled in the art, according to the idea of the present invention, any modification, equivalent replacement or improvement on the specific embodiments and application scope can be made, and the scope of the present invention is included in the claims of the present invention.
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