Photographic device and electronic device

Abstract

A photographic device and an electronic device capable of suppressing the shaking of a camera module are provided. The photographic device (12) includes a camera module (26) and a bracket (28) that supports the camera module (26) to move freely. The bracket (28) has a power transmission side coil (36), and the camera module (26) has a power reception side coil (38). There is a certain space between the power transmission side coil (36) and the power reception side coil (38), and they face each other.

Description

Technical Field

[0001] The present invention relates to a photographic device and an electronic device.

Background Art

[0002] For example, for a well-known photographic device of a driving recorder installed in a vehicle, it has a camera assembly and a bracket for supporting the camera assembly (Patent Document 1).

[0003]

Prior Art Documents

[0004]

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

[0006]

Technical Problem to be Solved by the Invention

[0007] The support for the camera assembly is freely movable relative to the bracket, and the inertia of the camera assembly is utilized to suppress the shake of the camera assembly. At this time, the vibration and shock caused by the vehicle driving are transmitted from the power supply line connected to the camera assembly, thereby making it easy for the camera assembly to generate mechanical shock and unable to suppress the shake of the camera assembly.

[0008] The present invention aims to provide a photographic device and an electronic device capable of suppressing the shake of the camera assembly.

[0009]

Technical Solution

[0010] One embodiment of the present invention is a photographic device, which has a camera assembly and a bracket for supporting the camera assembly to move freely. The bracket has a power transmission side coil, and the camera assembly has a power receiving side coil. There is a certain space between the power transmission side coil and the power receiving side coil, facing each other.

[0011] Preferably, the power transmission side coil and the power receiving side coil face each other in the winding axis or winding radius of the power transmission side coil and the power receiving side coil.

[0012] In addition, preferably, the bracket has a power supply circuit for supplying an alternating current to the power transmission side coil, and the power supply line is connected to the power supply circuit.

[0013] For example, as a mechanism for making the camera assembly move freely relative to the bracket, spherical portions can be respectively formed on the camera assembly and the bracket, and it can move freely through the spherical portions, or can also move freely through an elastic member, or can also move freely through a gimbal mechanism.

[0014] Another form of the present invention is an electronic device having a photographic device.

[0015]

Advantageous Effects

[0016] According to the present invention, a power transmission side coil is respectively arranged on the bracket, and a power receiving side coil is arranged on the camera assembly, so that a certain space is provided between the power transmission side coil and the power receiving side coil and they face each other. Thus, power can be supplied from the bracket side to the camera assembly side through electromagnetic induction. Therefore, there is no need to connect a power cord on the camera assembly side, thereby eliminating the vibration influence transmitted through the power cord and achieving the effect of suppressing the jitter of the camera assembly.

Description of the Drawings

[0017]

Figure 1

[0018]

Figure 2

[0019]

Figure 3

[0020]

Figure 4

[0021]

Figure 5

[0022]

Figure 6

[0023]

Figure 7

[0024]

Figure 8

[0025]

Figure 9

[0026]

Numbering Description

[0027] 10 Dash cam

[0028] 12 Photographing device

[0029] 14 Mounting device

[0030] 16 Fixing part

[0031] 18 Connecting part

[0032] 20 Connection part

[0033] 22 Cylindrical part

[0034] 24 Sphere part

[0035] 26 Camera assembly

[0036] 28 Bracket

[0037] 30 Lens

[0038] 32 Bracket body

[0039] 34 Back panel

[0040] 36 Power transmission side coil

[0041] 38 Power receiving side coil

[0042] 40 Power supply circuit

[0043] 42 Power supply wire

[0044] 44 Suspension spring

[0045] 46 First frame part

[0046] 48 Second frame part

[0047] 50 Spool part for winding

[0048] 52 Inner frame

[0049] 54 Outer frame

[0050] 56 Pin for rotation around X-axis

[0051] 58 Pin for rotation around Y-axis

[0052] 60 Return spring

Detailed implementation manners

[0053] The implementation manners of the present invention will be described below with reference to the accompanying drawings.

[0054] Figure 1 And Figure 2 The first implementation manner of using the present invention as an electronic device for a dashcam 10 is shown.

[0055] The dashcam 10 has a photographing device 12 and a mounting device 14 for mounting the photographing device 12 on a vehicle.

[0056] The mounting device 14 has a flat fixing member 16 and a rod-shaped coupling member 18 coupled to the fixing member 16. The fixing member 16 and the coupling member 18 are connected by a connecting portion 20. The connecting portion 20 is composed of a cylindrical portion 22 formed at the center of the back surface portion of the fixing member 16 and a spherical portion 24 formed at one end of the coupling member 18. The inner surface of the cylindrical portion 22 is formed in a spherical shape, and the spherical portion 24 is embedded in the inner surface of the cylindrical portion 22. With the cylindrical portion 22 as the center, the coupling member 18 can rotate 360 degrees. In addition, the other end of the coupling member 18 is fixed to the bracket body 32 described later. In addition, the surface side of the fixing member 16 is fixed to the front glass or the vehicle body in the vehicle.

[0057] The photographing device 12 has a camera assembly 26 and a bracket 28 that supports the camera assembly 26 to move freely.

[0058] The camera assembly 26 generally has a lens 30 facing the Z direction in the XYZ orthogonal coordinate system. The optical axis direction of the lens 30 is the Z direction. In this embodiment, the lens 30 faces the traveling direction of the vehicle body (i.e., the front), but it is not limited thereto, and it can also face any direction such as the rear, upper, or side of the traveling direction of the vehicle body. In addition, the camera assembly 26 has an image sensor that can detect an image formed by condensing light through the lens 30, and further, a driving portion such as a coil and a magnet or a shape memory alloy that can move the position of the lens 30 can be provided.

[0059] The outer shape of the camera assembly 26 is a spherical shape cut in the front and rear in the Z direction. In addition, the bracket 28 is composed of a bracket body 32 having a cylindrical outer shape and a circular plate-shaped back panel 34 fixed to the bracket body 32, and the latter is located on the -Z side (back side) of the bracket body 32. The inner surface of the bracket body 32 is spherical. In order to surround the camera assembly 26 around the Z axis, the outer surface of the camera assembly 26 is fitted on the inner surface of the bracket body 32. Thus, the camera assembly 26 can rotate around each of the X, Y, and Z axes relative to the bracket body 32. A material with excellent lubricity can also be applied to the inner surface of the bracket body 32 or the outer surface of the camera assembly 26, and the camera assembly 26 can rotate smoothly relative to the bracket body 32.

[0060] In addition, a circular power transmission side coil 36 that rotates around the Z axis is fixed to the +Z side surface of the back panel 34 of the bracket 28. And a circular power reception side coil 38 that is also circular is fixed to the -Z side surface of the camera assembly 26. The power transmission side coil 36 and the power reception side coil 38 are spaced apart by a certain space in the Z axis direction (i.e., the winding axis direction) and face each other.

[0061] On the surface on the -Z side of the back panel 34 of the bracket 28, a power supply circuit 40 is installed. The power supply circuit 40 is connected to a power cord 42, and the supplied power is converted into an alternating current through the power cord 42. An alternating current of, for example, several tens of hertz to several hundreds of hertz is applied to the power transmission side coil 36. Once an alternating current is applied to the power transmission side coil 36, an alternating magnetic field is generated around the power transmission side coil 36 and the power reception side coil 38, and an induced current flows through the power reception side coil 38.

[0062] On the other hand, on the power reception side coil 38, an LC resonance circuit is formed, for example, by connecting a capacitor or the like. Such a setting enables it to resonate at a frequency matching the vibration frequency of the power transmission side coil 36, and power can be received efficiently. The power obtained by the power reception side coil 38 is used for the photographing operation of the camera assembly 26.

[0063] Moreover, the image data detected by the camera assembly 26 is wirelessly transmitted via Wi-Fi (registered trademark) or the like.

[0064] For example, if the power cord 42 and the photographing device 12 shake together with the running vehicle and an angular acceleration is applied to the photographing device 12, the freely movable camera assembly 26 slides inside the bracket 28 by inertia to maintain the posture before shaking. At this time, since the power cord 42 is connected to the bracket 28 side, the camera assembly 26 is not affected by the shaking of the power cord 42, and the camera assembly 26 is isolated from the shaking of the vehicle. As a result, the jitter of the captured image is reduced.

[0065] Figure 3 And Figure 4 The second embodiment in which the present invention is applied to the driving recorder 10 is shown.

[0066] Compared with the first embodiment, the shapes of the camera assembly 26 and the bracket 28 and the support structure of the camera assembly 26 are different in this second embodiment.

[0067] The camera assembly 26 has a cube shape. The bracket 28 has a bracket body 32 in a four-corner shape that surrounds the assembly 26 around the Z axis with a certain space in between. In addition, the bracket 28 fixes a four-corner plate-shaped back panel 34 on the -Z side (back side) of the bracket body 32.

[0068] The bracket 28 supports the camera assembly 26 to move freely through a suspension spring 44. Both ends of the slightly ring-shaped or spiral wire spring of the suspension spring 44 are orthogonal to the slightly ring-shaped or spiral plate surface and are bent in opposite directions. In addition, one end of the suspension spring 44 is connected to the central portion of each of the four sides of the bracket body 32, and the other end of the suspension spring 44 is connected to the side surface of the camera assembly 26. Therefore, the bracket body 32 supports the camera assembly 26 to freely rotate around the X, Y, and Z axes. In this second embodiment, the outer shape of the suspension spring 44 is circular, but it is not limited thereto.

[0069] In the second embodiment, the power transmission side coil 36 and the power reception side coil 38 are formed in a rectangular shape, and are respectively fixed to the back panel 34 and the camera assembly 26, and are spaced apart by a certain space in the Z-axis direction (i.e., the winding direction) and face each other.

[0070] In the second embodiment, as in the first embodiment, if angular acceleration is applied to the photographic device 12 due to the shaking of the power supply line 42 and the photographic device 12, the camera assembly 26 that is supported and free to move moves within the bracket 28 due to inertia to maintain the posture before shaking. At this time, since the power supply line 42 is connected to the bracket 28 side, the camera assembly 26 is not affected by the shaking of the power supply line 42, and the camera assembly 26 is isolated from the shaking of the vehicle. As a result, the jitter of the captured image is reduced.

[0071] Moreover, in the second embodiment, the parts that are the same as those in the first embodiment are given the same numbers in the drawings, and their descriptions are omitted.

[0072] Figures 5 to 7 A third embodiment in which the present invention is applied to a driving recorder 10 is shown.

[0073] Compared with the first embodiment, the third embodiment is different in the configuration of the power transmission side coil 36 and the power reception side coil 38 and the support structure of the camera assembly 26.

[0074] In the third embodiment, the camera assembly 26 is the same as that in the second embodiment and has a cubic shape, and the power reception side coil 38 is mounted on the side surface of the camera assembly 26 and is curled into a rectangular shape around the Z-axis.

[0075] In addition, the bracket body 32 of the bracket 28 is divided into two in the Z-axis direction to form a first frame portion 46 and a second frame portion 48 having a rectangular shape. The first frame portion 46 and the second frame portion 48 are connected at four corner portions of the first frame portion 46 and the second frame portion 48 by a spool portion 50 for winding. Around the spool portion 50 for winding, the power transmission side coil 36 is mounted along the first frame portion 46 and the second frame portion 48 and is curled into a rectangular shape. The power transmission side coil 36 and the power reception side coil 38 are spaced apart by a certain space in the XY direction (i.e., the winding diameter direction) and face each other.

[0076] In addition, the camera assembly 26 is supported by a suspension spring 44 provided on the -Z direction side of the back panel 34 of the bracket 28 and is free to rotate around the X, Y, and Z axes.

[0077] In this third embodiment, as in the second embodiment, when angular acceleration is applied to the imaging device 12 due to the shaking of the power cord 42 and the imaging device 12, the camera assembly 26 that is freely movable while being supported moves within the bracket 28 due to inertia to maintain the posture before shaking. At this time, since the power cord 42 is connected to the bracket 28 side, the camera assembly 26 is not affected by the shaking of the power cord 42, and the camera assembly 26 is isolated from the shaking of the vehicle. As a result, the shake of the captured image is reduced.

[0078] Moreover, parts that are the same as those in the second embodiment in this third embodiment are given the same numbers on the drawings, and their descriptions are omitted.

[0079] Figures 8 to 9 A fourth embodiment in which the present invention is applied to the driving recorder 10 is shown.

[0080] Compared with the second embodiment, the shape of the bracket 28 and the support structure of the camera assembly 26 are different in this fourth embodiment.

[0081] In this fourth embodiment, the camera assembly 26 is supported by the bracket 28 and moves freely through a gimbal mechanism.

[0082] That is, the bracket 28 has an inner frame 52 and an outer frame 54 with a quadrangular shape around the camera assembly 26. The outer surface on the X side of the camera assembly 26 and the inner surface on the X side of the inner frame 52 are supported by a pin 56 for rotation around the X axis and are freely rotatable around the X axis. In addition, the outer surface on the Y side of the inner frame 52 and the inner surface on the Y side of the outer frame 54 are supported by a pin 58 for rotation around the Y axis and are freely rotatable around the Y axis.

[0083] In addition, a return spring 60 is disposed at the central portion between the back panel 34 of the bracket 28 and the camera assembly 26. Similar to the suspension spring 44, one end of the return spring 60 is connected to the front surface of the back panel 34, and the other end is connected to the back surface of the facing camera assembly 26. When the camera assembly 26 rotates around the X axis or the Y axis, the return spring comes into play and returns it to the original direction. Therefore, the camera assembly 26 is supported by the suspension and can rotate around the two axes of X and Y.

[0084] In this fourth embodiment, since the camera assembly 26 is supported by the bracket 28 through a gimbal structure, the camera assembly 26 rotates due to inertia to maintain the posture before shaking. When angular acceleration is applied to the imaging device 12 due to the shaking of the power cord 42 and the imaging device 12, the camera assembly 26 shakes within the bracket 28 due to inertia to maintain the posture before shaking. At this time, since the power cord 42 is connected to the bracket 28 side, the camera assembly 26 is not affected by the shaking of the power cord 42, and the camera assembly 26 is isolated from the shaking of the vehicle. As a result, the shake of the captured image is reduced.

[0085] Moreover, the parts that are the same as those in the second embodiment in the fourth embodiment are given the same reference numerals on the drawings, and the description thereof is omitted.

[0086] Moreover, the above embodiments illustrate examples in which the present invention is applied to a driving recorder, but the application target of the present invention is not limited to a driving recorder, and it can also be used for a camera device mounted on an electronic device such as an automobile or a drone.

[0087] In the first, second, or fourth embodiment, the arrangement of the power transmission side coil 36 and the power reception side coil 38 can be changed with reference to the third embodiment, that is, changed to face each other in the radial direction of the coil winding. Similarly, in the third embodiment, the arrangement of the power transmission side coil 36 and the power reception side coil 38 can be changed with reference to the first, second, or fourth embodiment, that is, changed to face each other in the axial direction of the coil winding.

Claims

1. A photographic device, characterized in that, Comprising: A camera component; A bracket for supporting the free movement of the camera component; The bracket has a power transmission side coil; And The camera component has a power receiving side coil; Wherein, there is a certain space between the power transmission side coil and the power receiving side coil, facing each other, and the bracket includes a power supply circuit for supplying alternating current to the power transmission side coil, and the power supply circuit is used to connect to a power line, If the power line and the photographic device shake together, applying an angular acceleration to the photographic device, the freely movable camera component slides, moves or shakes in the bracket by inertia to maintain the posture before shaking.

2. The photographic apparatus according to claim 1, characterized in that, In the winding axial direction of the power transmission side coil and the power receiving side coil, the power transmission side coil and the power receiving side coil face each other.

3. The photographic apparatus according to claim 1, characterized in that, In the winding radial direction of the power transmission side coil and the power receiving side coil, the power transmission side coil and the power receiving side coil face each other.

4. The photographic apparatus according to any one of claims 1 to 3, characterized in that, Spherical parts are respectively formed on the camera component and the bracket, and the camera component is supported by the bracket and moves freely through the spherical parts.

5. The photographic apparatus according to any one of claims 1 to 3, characterized in that, The camera component is supported by the bracket and moves freely through an elastic member.

6. The photographic apparatus according to any one of claims 1 to 3, characterized in that, The camera component is supported by the bracket and moves freely through a gimbal mechanism.

7. An electronic device, characterized in that, A photographic device according to any one of claims 1 to 6.

Images