Shutter structure

Abstract

The utility model relates to a shutter structure which comprises a shutter base, a light inlet hole is arranged on the shutter base, a shutter blade group for opening or shielding the light inlet hole is arranged on the shutter base, and a driving mechanism for driving the shutter blade group to open or shield the light inlet hole is arranged on the shutter base. The shutter base is further provided with a circuit board electrically connected with the driving mechanism, the shutter base is provided with a cover plate covering the shutter blade set, the cover plate is provided with a cover plate through hole exposed out of the light inlet hole, the lower surface of the circuit board is provided with a first electrode, the upper surface of the cover plate is provided with a second electrode, and the first electrode is electrically connected with the second electrode. The second electrode is fixedly arranged on the upper surface of the cover plate, so that a flat cable or a wire is omitted, an additional jig is not needed to fix the flat cable or the wire, the shutter can be conveniently and automatically installed on other parts of a camera, the internal space of a machine body occupied by the shutter is reduced, and miniaturization of equipment is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to shutter field, more specifically, relate to a shutter structure. BACKGROUND

[0002] The shutter is a structure used for controlling the effective exposure time of a photographic film, and is an important component of a camera. The structure, form and function of the shutter are important factors for measuring the grade of the camera. Generally speaking, the larger the time range of the shutter is, the better. The shutter time is controlled by the device, thereby controlling the amount of light entering the camera.

[0003] The existing shutter is electrically connected with other parts of the camera through the wire or the wire and the connector thereon. However, the wire is very soft and easy to deform and change position. When the shutter is installed on other parts of the camera and electrically connected, the position of the wire needs to be fixed by a jig to enable automatic installation, or the position of the wire is confirmed by a high-precision sensor, and the installation is performed by a mechanical hand, which is high in cost. In addition, the wire and the connector thereon occupy the internal space of the body, which limits the miniaturization of the equipment. SUMMARY

[0004] In view of the above defects of the prior art, a shutter structure is provided.

[0005] The utility model discloses a shutter structure, including shutter base, be provided with the light hole on shutter base, be provided with shutter blade group that opens or shields the light hole on shutter base, be provided with the drive mechanism that drives shutter blade group to open or shield the light hole on shutter base, still be provided with the circuit board that is electrically connected with drive mechanism on shutter base, circuit board, drive mechanism and shutter blade group arrange from below to above in proper order, be provided with the cover plate that covers shutter blade group on shutter base, be provided with the cover plate through -hole that exposes the light hole on cover plate, be provided with the first electrode on the lower surface of circuit board, the upper surface of cover plate is provided with the second electrode, first electrode and second electrode all are electrically connected with circuit board.

[0006] As preferred, the upper surface of the shutter base is provided with an annular groove around the light hole, the drive mechanism is arranged in the annular groove, the circuit board is arranged on the lower surface of the shutter base, the circuit board is provided with a connecting piece, the two ends of the connecting piece are connected with the second electrode and the circuit board respectively, the groove bottom of the annular groove is provided with a relief via hole for avoiding the connecting piece, and the cover plate is provided with a relief notch for avoiding the connecting piece.

[0007] As preferred, the connecting piece is a flexible circuit board, one end of the flexible circuit board is fixedly arranged on the upper surface of the cover plate, and the second electrode is provided with two second electrodes which are arranged on the upper surface of the one end of the flexible circuit board on the cover plate.

[0008] As preferred, the lower surface of the shutter base is provided with a mounting groove, the circuit board is mounted in the mounting groove, the circuit board does not protrude from the lower surface of the shutter base, and the bottom of the mounting groove is provided with a connecting via.

[0009] As preferred, an anti-interference partition plate is arranged between the driving mechanism and the shutter blade set.

[0010] As preferred, the driving mechanism comprises two coil supports, each of the two coil supports is provided with a driving coil, the driving coil is electrically connected with the circuit board, the two coil supports are arranged in a ring structure around the light inlet hole, the two ends of the two coil supports are spaced apart from each other to form two spaced cavities, each of the two spaced cavities is provided with a rotor which is rotatably connected to the shutter base, the rotor is provided with a handle, and the shutter blade set is provided with two groups of shutter blades which are arranged on the two handles respectively.

[0011] As preferred, the shutter blade set comprises a first blade and a second blade, the shutter base is provided with a rotating shaft, the first blade and the second blade are rotatably arranged on the rotating shaft, the first blade and the second blade are correspondingly provided with a first trajectory through hole and a second trajectory through hole which determine the movement track, one end of the handle is inserted into the corresponding first trajectory through hole and second trajectory through hole, and two first blades and two second blades in the two shutter blade sets are sequentially stacked from top to bottom in the order of first blade, second blade, second blade and first blade.

[0012] The second electrode is fixedly arranged on the upper surface of the cover plate, so that the wire harness or the wire is cancelled, an additional jig is not needed to fix the wire harness or the wire, the PIN pin of other parts of the camera only needs to be directly abutted with the second electrode to be electrically connected with the shutter, the shutter is convenient to automatically install on the other parts of the camera, the connector on the wire harness or the wire is cancelled, the internal space of the camera body occupied by the shutter is reduced, and the equipment is miniaturized. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a whole top surface structure schematic view of an embodiment of the utility model;

[0014] Figure 2 is an explosion schematic view of an embodiment of the utility model;

[0015] Figure 3It is the whole bottom structure schematic diagram of the embodiment of the utility model.

[0016] Sign: 1 shutter base, 10 light inlet hole, 11 annular groove, 12 avoidance via, 13 installation groove, 14 connecting via, 15 rotating shaft, 2 shutter blade group, 20 first blade, 21 second blade, 3 coil support, 30 drive coil, 31 rotor, 32 crank handle, 4 circuit board, 5 cover plate, 50 cover plate through hole, 51 avoidance notch, 6 first electrode, 7 second electrode, 8 connecting piece, 9 anti-interference partition. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clearly, the following will combine the technical scheme in the utility model embodiment to be clearly and completely described, obviously, the described embodiment is the part embodiment of the utility model, rather than all embodiments. Based on the embodiment of the utility model, all other embodiments obtained by the person skilled in the art without paying creative labor belong to the protection scope of the utility model, in addition, the direction language such as "up", "down", "front", "back", "left", "right", "inner", "outer" etc. mentioned in the utility model is only reference the direction of the attached drawing, and the direction language is used to better, more clearly illustrate and understand the utility model, and is not instructive or implicit the orientation that the utility model must have, therefore, can not be understood as the limitation of the utility model.

[0018] The utility model embodiment as Figures 1 to 3 The utility model discloses a shutter structure, including shutter base 1, shutter base 1 is provided with light inlet hole 10, shutter base 1 is cuboid structure, and light inlet hole 10 is located at the center position of the top surface of shutter base 1, shutter base 1 is provided with shutter blade group 2 that opens or shields light inlet hole 10, shutter base 1 is provided with drive mechanism that drives shutter blade group 2 to open or shield light inlet hole, shutter base 1 is still provided with circuit board 4 that is electrically connected with drive mechanism, circuit board 4, drive mechanism and shutter blade group 2 are sequentially arranged from down to up, shutter base 1 is provided with cover plate 5 that covers shutter blade group 2, cover plate 5 is provided with cover plate through hole 50 that exposes light inlet hole 10, and cover plate through hole 50 is coaxial with light inlet hole 10, the lower surface of circuit board 4 is provided with first electrode 6, the upper surface of cover plate 5 is provided with second electrode 7, and first electrode 6 and second electrode 7 are electrically connected with circuit board 4.

[0019] The second electrode 7 is fixedly arranged on the upper surface of the cover plate 5, so that the wiring or lead is cancelled, and no additional jig is needed to fix the wiring or lead. The PIN of other parts of the camera can be directly abutted with the second electrode 7 to be electrically connected with the shutter, which is convenient for automatic installation of the shutter on other parts of the camera, and the cancellation of the wiring or lead also cancels the connector thereon, reduces the internal space of the camera occupied by the shutter, and facilitates the miniaturization of the equipment.

[0020] Further improvements, as shown in Figure 1 and Figure 2 , the upper surface of the shutter base 1 is provided with an annular groove 11 surrounding the light inlet hole 10, the annular groove 11 is a square ring structure, the driving mechanism is arranged in the annular groove 11, the circuit board 4 is arranged on the lower surface of the shutter base 1, the circuit board 4 is provided with a connecting piece 8, the two ends of the connecting piece 8 are connected with the second electrode 7 and the circuit board 4 respectively, that is, the circuit board 4 and the second electrode 7 are electrically connected through the connecting piece 8, the bottom of the annular groove 11 is provided with an avoiding through hole 12 for avoiding the connecting piece 8, the avoiding through hole 12 is located at the lower left corner of the bottom of the annular groove 11, the cover plate 5 is provided with an avoiding notch 51 for avoiding the connecting piece 8, the avoiding notch 51 is located at the lower left corner of the cover plate 5, and the avoiding notch 51 and the left side of the annular groove 11 form a through hole for the connecting piece 8 to pass out.

[0021] Further improvements, as shown in Figure 1 and Figure 2 , the connecting piece 8 is a flexible circuit board, one end of the flexible circuit board away from the circuit board 4 is fixedly arranged on the upper surface of the cover plate 5, the second electrode 7 is provided with two, the two second electrodes 7 are arranged on the upper surface of one end of the flexible circuit board on the cover plate 5, a plurality of hot melt protrusions for hot melt fixation are arranged on the upper surface of the cover plate 5, one end of the flexible circuit board away from the circuit board 4 is located between the plurality of hot melt protrusions, and the hot melt protrusion is melted through the hot melt process to fix one end of the flexible circuit board away from the circuit board 4 on the upper surface of the cover plate 5, and the second electrode 7 does not protrude above the top surface of the shutter base 1.

[0022] Further improvements, as shown in Figure 2 and Figure 3 , the lower surface of the shutter base 1 is provided with a mounting groove 13, the circuit board 4 is mounted in the mounting groove 13, the mounting groove 13 is a structure matched with the shape of the circuit board 4, and the circuit board 4 does not protrude above the lower surface of the shutter base 1. The bottom of the mounting groove 13 is provided with a connecting through hole 14, and the driving mechanism can pass through the connecting through hole 14 and the circuit board 4 through the lead or connector to be electrically connected.

[0023] Further improvements, as shown in Figure 1 andFigure 2 As shown in the figure, an interference prevention partition 9 is arranged between the driving mechanism and the shutter blade set 2 to prevent the driving mechanism from interfering with the opening or closing of the shutter blade set 2.

[0024] Further improvement, as shown in the figures, Figure 1 and Figure 2 The driving mechanism comprises two coil supports 3, each of which is provided with a driving coil 30, and the driving coil 30 is electrically connected to the circuit board 4. The two coil supports 3 form an annular structure around the light inlet hole 10, and the two ends of the two coil supports 3 are spaced apart to form two spaced cavities. The two spaced cavities are each provided with a rotor 31 rotatably connected to the shutter base 1. The rotor 31 is provided with a handle 32. The shutter blade set 2 is provided with two sets, and the two sets of shutter blade sets 2 are respectively arranged on the two handles 32. The driving coil 30 and the coil support 3 provide power for the rotation of the rotor 31. The rotor 31 drives the shutter blade set 2 to move through the handle 32, thereby opening or shielding the light inlet hole.

[0025] Further improvement, as shown in the figures, Figure 1 and Figure 2 The shutter blade set 2 comprises a first blade 20 and a second blade 21. The shutter base 1 is provided with a rotating shaft 15. The first blade 20 and the second blade 21 are both rotatably arranged on the rotating shaft 15. The first blade 20 and the second blade 21 are respectively provided with a first trajectory through hole and a second trajectory through hole for determining the trajectory. One end of the handle 32 is inserted into the corresponding first trajectory through hole and second trajectory through hole. The two first blades 20 and the two second blades 21 in the two shutter blade sets 2 are sequentially stacked from top to bottom in the order of first blade 20, second blade 21, second blade 21 and first blade 20. The first blade 20 and the second blade 21 are driven to move according to the trajectory through the rotating shaft 15, the first trajectory through hole, the second trajectory through hole and the handle 32, thereby opening or shielding the light inlet hole.

[0026] It should be understood that those skilled in the art can make improvements or changes according to the above description, and all these improvements and changes shall fall within the protection scope of the appended claims of the present application.

Claims

1. A shutter structure, comprising a shutter base, characterized in that, The shutter base is provided with a light-entry hole; the shutter base is provided with a shutter blade assembly that opens or blocks the light-entry hole; the shutter base is provided with a drive mechanism that drives the shutter blade assembly to open or block the light-entry hole; the shutter base is also provided with a circuit board electrically connected to the drive mechanism; the circuit board, drive mechanism, and shutter blade assembly are arranged sequentially from bottom to top; the shutter base is provided with a cover plate that covers the shutter blade assembly; the cover plate is provided with a cover plate through hole that exposes the light-entry hole; a first electrode is provided on the lower surface of the circuit board; a second electrode is provided on the upper surface of the cover plate; both the first electrode and the second electrode are electrically connected to the circuit board.

2. The shutter structure according to claim 1, characterized in that, The upper surface of the shutter base is provided with an annular groove surrounding the light-entry hole; the drive mechanism is disposed in the annular groove; the circuit board is disposed on the lower surface of the shutter base; a connector is disposed on the circuit board; the two ends of the connector are respectively connected to the second electrode and the circuit board; the bottom of the annular groove is provided with a clearance through hole for the connector; the cover plate is provided with a clearance notch for the connector.

3. A shutter structure according to claim 2, characterized in that, The connector is a flexible circuit board; the end of the flexible circuit board away from the circuit board is fixedly disposed on the upper surface of the cover plate; two second electrodes are provided; the two second electrodes are disposed at intervals on the upper surface of the end of the flexible circuit board located on the cover plate.

4. A shutter structure according to claim 2, characterized in that, The lower surface of the shutter base is provided with a mounting groove; the circuit board is installed in the mounting groove; the circuit board does not protrude from the lower surface of the shutter base; the bottom of the mounting groove is provided with a connection through hole.

5. A shutter structure according to claim 1, characterized in that, An anti-interference partition is provided between the drive mechanism and the shutter blade assembly.

6. A shutter structure according to claim 1, characterized in that, The driving mechanism includes two coil supports; each of the two coil supports is provided with a driving coil; the driving coil is electrically connected to the circuit board; the two coil supports form a ring structure around the light inlet hole; the two ends of the two coil supports are spaced apart to form two spacer cavities; each of the two spacer cavities is provided with a rotor rotatably connected to the shutter base; the rotor is provided with a crank handle; two sets of shutter blades are provided; the two sets of shutter blades are respectively provided on the two crank handles.

7. A shutter structure according to claim 6, characterized in that, The shutter blade assembly includes a first blade and a second blade; a rotating shaft is provided on the shutter base; both the first and second blades are rotatably mounted on the rotating shaft; the first and second blades are correspondingly provided with a first trajectory through hole and a second trajectory through hole that determine the motion trajectory; one end of the crank is inserted into the corresponding first trajectory through hole and second trajectory through hole. The two first blades and two second blades in the two shutter blade groups are stacked sequentially from top to bottom in the order of first blade, second blade, second blade and first blade.

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