Two-axis tilt device, camera device, and electronic equipment

Abstract

Provided are a two-axis tilting device, a photographic device, and an electronic device capable of suppressing camera component shaking. The two-axis tilting device comprises a frame body (200), a suspension spring (300), and a tilting drive mechanism (600). The frame body (200) comprises a back panel (211) facing each other with a certain space between the bottom surface (120) of the tilted component (100). The suspension spring (300) is arranged in the space, connecting the bottom surface (120) and the back panel (211) to support the tilted component (100) so that the tilted component (100) can tilt relative to the back panel (211). The tilting drive mechanism (600) drives the tilted component (100) so that the tilted component (100) can tilt relative to the back panel (211).

Description

Technical field

[0001] The invention relates to a two-axis tilting device, a photographing device and an electronic device. [Background Technology]

[0002] As is known, a camera device of a drive recorder mounted on a vehicle includes a camera assembly and a bracket for supporting the camera assembly (Patent Document 1).

[0003]

Prior art literature

[0004] [Patent Literature]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-244614 [Summary of the invention]

[0006] [Technical Problems to be Solved by the Present Invention]

[0007] As for the dashcam installed on the vehicle, since its camera component is directly installed on the vehicle, it is easy to shake due to vibration or impact during operation, and the image is likely to be unclear.

[0008] The present invention aims to provide a two-axis tilt device, a photographic device and an electronic device capable of suppressing the shaking of a camera component.

[0009]

Technical solution

[0010] One form of the present invention is a two-axis tilting device, which has a frame body, a suspension spring and a tilting drive mechanism. It is a two-axis tilting device. The frame body has a back panel on the bottom surface of the tilted part, which is opposite to the bottom surface and separated by a certain space. The suspension spring is arranged in the space and connected between the bottom surface and the back panel to support the tilted part so that the tilted part can be tilted relative to the back panel. The tilting drive mechanism drives the tilted part so that it can be tilted relative to the back panel.

[0011] Furthermore, preferably, the suspension spring has a spring body portion in a spiral spring shape or a helical spring shape wound around in a vertical axis direction relative to the back plate.

[0012] Furthermore, preferably, the plate surface of the spring body is substantially parallel to the back plate.

[0013] Moreover, preferably, the suspension spring has mounting portions extending in the axial direction at both ends of the spring body, the first mounting portion formed at one end is connected to the back panel, and the second mounting portion formed at the other end is connected to the bottom surface of the inclined component.

[0014] Furthermore, preferably, the spring body portion does not contact either the bottom surface of the tilted member or the back surface plate.

[0015] Furthermore, preferably, one side of the magnet or the drive coil is arranged on the side of the tilted component as the tilt drive mechanism, and the other side of the magnet or the drive coil is arranged inside the frame body. The suspension spring has a spring body portion, which is formed by punching through a metal plate body and is wound around a vertical axis in a plane in the shape of a spiral spring. The first mounting portion and the second mounting portion are close to each other so as to form a nearly straight line, so that the second mounting portion can be tilted relative to the first mounting portion with the Z-axis as the axis.

[0016] Another aspect of the present invention is a photographic device comprising the two-axis tilt device of the invention and a camera module as the tilted member.

[0017] Another aspect of the present invention is an electronic device including the two-axis tilt device of the above invention or the camera device of the above invention.

[0018] Effects of the invention

[0019] According to the present invention, the tilted component, which is a camera assembly, is suspended by the suspension spring and can be tilted relative to the rear panel of the frame body. Furthermore, the tilt drive mechanism is driven to tilt the tilted component. This prevents the tilted component from tilting.

Brief Description of the Drawings

[0020]

Figure 1

[0021]

Figure 2

[0022]

Figure 3

[0023]

Explanation of symbols

[0024] 10. Dashcam

[0025] 100 Camera Components

[0026] 110 front

[0027] 120 Bottom

[0028] 130, 130A~130D side

[0029] 140 lens

[0030] 200 frame body

[0031] 210 Back side frame

[0032] 211 back panel

[0033] 212A~212D back side panels

[0034] 220, 220A~220D frame side panels

[0035] 230 incision

[0036] 310 Ontology Department

[0037] 400 power cord

[0038] 500 Installation Parts

[0039] 510 rod

[0040] 510A one end

[0041] 510B other end

[0042] 510C sphere

[0043] 520 fixed parts

[0044] 521 fixed plate

[0045] 522 cylindrical part

[0046] 600 Tilt drive element

[0047] 610 Coil

[0048] 620 Magnet

[0049] 620A, 620B 1st magnet

[0050] 620C, 620D 2nd magnet [Specific implementation method]

[0051] The following embodiments of the present invention are described with reference to the drawings. Furthermore, the following embodiments are described using the two-axis tilt device, camera device, and electronic device of the present invention as examples, and the present invention is not intended to be limited to the following embodiments.

[0052] like Figure 1 、 Figure 2As shown, the driving recorder 10 as an electronic device of this embodiment has a camera device and a mounting component 500. The camera device has a camera assembly 100 as a tilted component and a two-axis driving device that tilts the camera assembly 100 along two axes. A power cord 400 is connected to the camera assembly 100. The two-axis tilting device has a frame body 200 that surrounds the camera assembly 100, a suspension spring 300 that connects the camera assembly 100 and the frame body 200, and a tilting driving mechanism that tilts the camera assembly 100. The tilting driving mechanism has a current supply control component (not shown) and a tilting driving element 600 described later.

[0053] The camera assembly 100 forms a rectangular parallelepiped box. The camera assembly 100 has a generally square front 110 extending in the XY plane direction, a bottom 120 parallel to the front 110, and four side surfaces 130A to 130D. The front 110 and the bottom 120 have the same general shape and the same size. The front 110 and the bottom 120 may also be rectangular. The four side surfaces 130A to 130D are generally rectangular with the same size, each having a specified height in the Z-axis direction and a specified length in the Y-axis direction or the X-axis direction. The side surfaces 130A and 130B extend in the YZ plane direction, and the side surfaces 130C and 130D extend in the X-Z plane direction.

[0054] A lens 140, with its optical axis in the Z-axis direction, is disposed on the front face 110. Furthermore, an imaging element (not shown) is disposed within the camera module 100, parallel to the lens 140, and receives light from the subject through the lens 140. Furthermore, a current supply control unit is provided within the camera module 100 to supply current to the coils of the tilt drive element 600, described later. Furthermore, a storage medium storage unit (not shown) for storing storage media such as SD cards, or an image control unit (not shown) for processing images captured by the imaging element and storing them on the storage medium, may also be provided.

[0055] The frame body 200 includes a rear frame body 210 and a frame body side panel 220. The rear frame body 210 includes a rectangular rear panel 211 extending in the XY plane, and four rear side panels 212A to 212D extending from the periphery of the rear panel 211 in the Z-axis direction. The rear panel 211 is larger than the bottom surface 120 of the camera assembly 100. In other words, the X-axis and Y-axis lengths of the rear panel 211 are larger than the X-axis and Y-axis lengths of the bottom surface 120.

[0056] The frame body side panels 220 surround the camera assembly 100 and have open hollow square columns on both sides in the Z-axis direction. The four frame body side panels 220A-220D are comprised of the following: The Y-axis lengths of the frame body side panels 220A-220B and the X-axis lengths of the frame body side panels 220C and 220D are equal to the Y-axis lengths of the back side panels 212A and 212B, and the X-axis lengths of the back side panels 212C and 212D, respectively. Furthermore, they are greater than the Y-axis lengths of the side panels 130A and 130B, and the X-axis lengths of the side panels 130C and 130D of the camera assembly 100. Therefore, when the camera assembly 100 is positioned within the frame body 200, the side panels 130A-130D face each other without contact, separated by a certain distance from the frame body side panels 220A-220D.

[0057] Suspension spring 300 is positioned between bottom surface 120 of camera assembly 100 and rear panel 211 of frame body 200, connecting the two. Suspension spring 300 is positioned at the center of bottom surface 120. Suspension spring 300 may also be positioned at a location on bottom surface 120 corresponding to the center of gravity of camera assembly 100. Furthermore, two or more suspension springs 300 may be positioned on bottom surface 120.

[0058] like Figure 3 As shown, each suspension spring 300 includes a spring body 310, a first mounting portion 311 formed at one end of the spring body 310 and mounted on the back panel 211, and a second mounting portion 312 formed at the other end and mounted on the bottom surface 120. In this embodiment, the first mounting portion 311 is formed at the outer end, and the second mounting portion 312 is formed at the inner end. The spring body 310 is formed by punching through a metal plate and has the shape of a spiral spring wound around the Z axis in the XY plane. During installation, the plate surface of the spring body 310 is expanded in the XY plane. In this embodiment, the spring body 310 winds two turns around the Z axis from the first mounting portion 311 to the second mounting portion 312. The number of spiral turns can be less than or equal to two. Furthermore, it is preferable to design the first mounting portion 311 and the second mounting portion 312 to be extremely close.

[0059] The first mounting portion 311 is a rod-shaped member that bends and extends approximately perpendicularly from the outer end of the spring body 310 in the Z-axis direction. The first mounting portion 311 is fixedly connected to the back panel 211 of the back-side frame body 210. The second mounting portion 312 is a rod-shaped member that bends and extends approximately perpendicularly from the inner end of the spring body 310 in the Z-axis direction, in the opposite direction from the first mounting portion 311. The second mounting portion 312 is fixedly connected to the bottom surface 120 of the camera assembly 100. In this case, the spring body 310 does not contact either the bottom surface 120 of the camera assembly 100 or the back panel 211. As a result, the first mounting portion 311 and the second mounting portion 312 are nearly aligned, and the second mounting portion 312 can be tilted relative to the first mounting portion 311 about the Z-axis direction. In other words, it can rotate about the X-axis and the Y-axis.

[0060] A power cord 400 is connected to the bottom 120 of the camera assembly 100. This cord supplies power to the current supply control unit, storage media storage unit, and image control unit stored in the camera assembly 100. A cutout 230 is formed between the back side panel 212B and the back panel 211. This cutout 230 serves as an outlet for extending the power cord 400.

[0061] The mounting component 500 includes a rod 510 and a fixing component 520. One end 510A of the rod 510 is fixed to the frame body 200, for example, to the frame body side plate 220D. A sphere 510C is formed on the other end 510B of the rod 510. The fixing component 520 includes a fixing plate 521 and a cylindrical portion 522. The former has an adhesive surface that is attached to the vehicle windshield, and the latter protrudes on the opposite side of the adhesive surface. The cylindrical portion 522 and the sphere 510C constitute a so-called ball coupling. The cylindrical portion 522 supports the sphere 510C, and the rod 510 is supported so that the direction and angle can be adjusted with a certain degree of freedom relative to the fixing component 520.

[0062] The tilt drive element 600 consists of a coil 610 disposed on the side surfaces 130A to 130D of the camera assembly 100 and a magnet 620 disposed on the inner surfaces of the frame body side plates 220A to 220D of the frame body 200. The coil 610 includes first coils 610A and 610B and second coils 610C and 610D. The magnet 620 includes first magnets 620A and 620B and second magnets 620C and 620D. Specifically, the first coils 610A and 610B are disposed on the side surfaces 130A and 130B perpendicular to the X-axis direction. Meanwhile, the second coils 610C and 610D are disposed on the side surfaces 130C and 130D perpendicular to the Y-axis direction.

[0063] The first coils 610A and 610B each have an overall elliptical shape, elongated in the Y-axis direction, consisting of two straight sections extending along the Y-axis and a C-shaped curved section connecting their ends. Similarly, the second coils 610C and 610D each have an overall elliptical shape, elongated in the X-axis direction, consisting of two straight sections extending along the X-axis and a C-shaped curved section connecting their ends. The first coils 610A and 610B and the second coils 610C and 610D are connected to the current supply control unit within the camera assembly 100.

[0064] On the other hand, first magnets 620A and 620B are disposed on the frame body side plates 220A and 220B, and second magnets 620C and 620D are disposed on the frame body side plates 220C and 220D.

[0065] The first magnets 620A and 620B are each composed of two plate-shaped magnet pieces with different pole faces extending in the Y-axis direction, and are arranged in the Z-axis direction. The second magnets 620C and 620D are each composed of two plate-shaped magnet pieces with different pole faces extending in the X-axis direction, and are arranged in the Z-axis direction. The linear portions of the first coils 610A and 610B face the first magnets 620A and 620B with a certain distance between them. Furthermore, the linear portions of the second coils 610C and 610D face the second magnets 620C and 620D with a certain distance between them. A variation is that the first magnet 620A, 620B and the second magnet 620C, 620D are divided in the Z-axis direction and have different magnetic pole surfaces, and are respectively opposed to the straight parts of the first coil 610A, 610B and the second coil 610C, 610D with a certain space between them.

[0066] The following describes an assembly example of the driving recorder 10 of the present embodiment described above. The power cord 400 is connected to the bottom surface 120 of the camera assembly 100, and the coil 610 is installed on the side surfaces 130A to 130D. Furthermore, the second mounting portion 312 of the suspension spring 300 is connected to the bottom surface of the camera assembly 100. On the other hand, the first mounting portion 311 of the suspension spring 300 is connected to the back panel 211 of the back side frame body 210. Thus, the camera assembly 100 is in a state of being suspended by the frame body 200 through the suspension spring 300. Furthermore, the magnet 620 is installed on each inner surface of the frame body side plates 220A to 220D.

[0067] Subsequently, the camera assembly 100 is inserted into the frame body side plate 220. The frame body side plate 220 is also installed relative to the back side frame body 210. Specifically, the rear ends of the frame body side plates 220A to 220D in the Z-axis direction are docked and fixed with the front ends of the back side plates 212A to 212D of the back side frame body 210 in the Z-axis direction. In this case, the power cord 400 is pulled out of the frame body 200 through the cutout portion 230 of the back side frame body 210. As a result, the camera assembly 100 is in a state where it can be tilted inside the frame body 200.

[0068] Moreover, in this case, the straight-line portions of the first coils 610A and 610B are facing each other with a certain space between them relative to the different magnetic pole surfaces of the first magnets 620A and 620B, and the straight-line portions of the second coils 610C and 610D are facing each other with a certain space between them relative to the different magnetic pole surfaces of the second magnets 620C and 620D.

[0069] Then, one end 510A of the rod 510 of the mounting member 500 is fixedly connected to one of the frame side plates 220 of the frame body 200 ( Figure 1 、 Figure 2 The frame body side plate 220D is shown in the middle, and the ball 510C at the other end 510B is inserted into the cylindrical part 522 of the fixing part 520.

[0070] Next, the operation of the drive recorder 10 of this embodiment will be described. For example, current is supplied from the current supply control unit to energize coil 610. Within the magnetic field generated by magnet 620, the current flowing through coil 610 generates an electromagnetic force in the Z-axis direction relative to coil 610.

[0071] The same current flows through first coil 610A and first coil 610B. In this case, depending on the direction of the current and the selection of the magnetic pole faces of first magnets 620A and 620B, first coil 610A and first coil 610B generate opposite forces in the Z-axis direction. This enables rotation about the Y-axis relative to camera assembly 100.

[0072] The same applies to the second coils 610C and 610D. When the same current flows through them, the second coils 610C and 610D generate opposite forces in the Z-axis direction, thereby enabling their rotation relative to the camera assembly 100 around the X-axis.

[0073] The current supply control component of the camera assembly 100 has an angular velocity detection element (not shown). Vibration or shock during vehicle operation is transmitted to the camera assembly 100, and each component around the X axis and the component around the Y axis are detected by the angular velocity detection element. The current supply control component supplies current to the second coil 610C, 610D and / or the first coil 610A, 610B of the camera assembly 100, or adjusts the supply amount and direction of current based on the magnitude and direction of the angular velocity of the detected components around the X axis and / or Y axis. In this way, the camera assembly 100 can generate a force to rotate around the X axis and / or Y axis, so that it returns to its original direction around the X axis and / or Y axis. In this way, the camera assembly 100 is blocked from shaking in the car.

[0074] Furthermore, the suspension spring 300 may also be configured by bending the two ends of the pierced plate to form the first mounting portion 311 and the second mounting portion 312. Furthermore, a metal wire may be formed into a spiral shape as the spring body 310, and the two ends may be bent to form the first mounting portion 311 and the second mounting portion 312. Furthermore, the spring body 310 may be a coil spring instead of a spiral shape. Furthermore, the above embodiment illustrates an example of applying the present invention to a driving recorder, but the applicable objects of the present invention are not limited to driving recorders, and may also be applied to camera devices mounted on bicycles or drones, and the like.

Claims

1. A two-axis tilting device, characterized in that: It includes: The frame body has a back panel, the back panel being spaced apart from and facing the bottom surface of the tilted component; and a second mounting portion formed at one end of the spring and connected to the bottom surface of the tilted component; the first mounting portion and the second mounting portion are close to each other so as to form a straight line so that the second mounting portion can be tilted relative to the first mounting portion in the vertical direction. The spring body is in the shape of a spiral spring wound around the vertical axis in a plane relative to the back surface, the plate surface of the spring body is parallel to the back surface, and the spring body does not contact the bottom surface of the tilted component or the back surface. a tilting drive mechanism for driving the tilted component so that the tilted component can be tilted relative to the back panel; The tilt drive mechanism includes a magnet and a drive coil, wherein the drive coil is arranged on the side of the tilted component, and the magnet is arranged inside the frame body; The driving coils arranged on at least two of the side surfaces parallel to each other generate forces in opposite directions along the vertical axis.

2. The two-axis tilting device according to claim 1, characterized in that: The spring body is formed by punching through a metal plate.

3. A photographic device, characterized in that: The invention comprises a camera assembly as the tilted component and the two-axis tilting device according to any one of claims 1 to 2.

4. An electronic device, characterized in that: A photographic device according to claim 3.

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