CN217034467U

CN217034467U - Shutter with compact structure

Info

Publication number: CN217034467U
Application number: CN202220601462.9U
Authority: CN
Inventors: 邓良军; 冯亮; 蒋亮
Original assignee: Foshan City Hs Optoelectronic Products Co ltd
Current assignee: Foshan City Hs Optoelectronic Products Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-22
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a shutter with a compact structure, which belongs to the field of camera shutters and comprises a base, wherein a first light inlet hole is formed in the middle of the base; the coil is wound on the outer surface of the iron core component to form an arc-shaped coil winding part, and the width of the coil winding part is smaller than that of the end part of the iron core component connected with the coil winding part; the shutter blade assembly can be driven by the driving device to move towards or away from the first light inlet hole along the base, and the shutter blade assembly further comprises a spacer and a cover plate. According to the utility model, the coil and the iron core in the shutter driving device are designed into the arc-shaped structures, so that the difficulty in winding the coil is reduced, and meanwhile, the width of the iron core at two ends of the winding part of the coil is designed to be wider than that of the winding part of the coil, so that the effect of limiting the winding of the coil is achieved, and the winding precision is improved.

Description

Shutter with compact structure

Technical Field

The utility model relates to the field of camera shutters, in particular to a shutter with a compact structure.

Background

The shutter is a mechanism for controlling the effective exposure time of the photosensitive film, and is an important component of the camera. Chinese patent CN201110444477.5 discloses a mechanical shutter, which comprises a base, be equipped with an L-shaped iron core at this base, wind respectively on the both sides of this L-shaped iron core and establish a set of coil, the both ends of this L-shaped iron core are connected with a magnetic conduction block respectively, form a breach between these two magnetic conduction blocks, be equipped with a magnetite in this breach, be equipped with a circular shape fixed anti-dazzling screen at the center of this base, be equipped with a circular shape at the center of this fixed anti-dazzling screen and lead to the unthreaded hole, it has a portable anti-dazzling screen to cover at this circular shape logical unthreaded hole, a connecting piece and magnetite fixed connection are stretched out to one side of this portable anti-dazzling screen. Further analysis of the mechanical shutter has revealed that the following problems still exist:

the split design of the iron core and the magnetic conduction block has a complex structure, and the production cost is increased; the coil is wound on two sides of the L-shaped iron core, so that intersection parts of the two sides need to be avoided when the coil is wound, and the structure is lack of a limiting device, so that the winding accuracy of the coil is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a shutter which is convenient to wind and compact in structure.

In order to achieve the purpose, the utility model adopts the following technical scheme: a shutter with a compact structure comprises a base, wherein a first light inlet hole is formed in the middle of the base; the driving device is arranged on the base and comprises a magnetic assembly, a coil and an iron core assembly, the coil is wound on the outer surface of the iron core assembly to form an arc-shaped coil winding part, and the width of the coil winding part is smaller than that of the end part of the iron core assembly connected with the coil winding part; the spacer is provided with a second light inlet hole corresponding to the first light inlet hole; the shutter blade assembly is connected with the driving device and can move towards or away from the first light inlet hole along the base under the driving of the driving device; the cover plate is provided with a third light inlet corresponding to the first light inlet, the shutter blade assembly is located between the spacer and the cover plate, and the cover plate is matched with the base.

Further, the shutter blade assembly comprises a first shutter blade group and a second shutter blade group, the second shutter blade group is arranged below the first shutter blade group, the first shutter blade group comprises two first shutter blades which are identical in shape and arranged oppositely, the first shutter blades comprise a first connecting portion, a first shading portion and a limiting portion, one end of the first shading portion is connected with the first connecting portion, the other end of the first shading portion is connected with the limiting portion, an included angle is formed between the first shading portion and the limiting portion, the second shutter blade group comprises two second shutter blades which are identical in shape and arranged oppositely, and the second shutter blades comprise a second connecting portion and a second shading portion connected with the second connecting portion.

Further, the iron core subassembly includes the same first iron core and the second iron core of shape, first iron core with the second iron core symmetry is located first light inlet hole periphery, first iron core one end outwards is equipped with first protruding position, second iron core one end outwards is equipped with the protruding position of second, first protruding position with the protruding position of second sets up relatively and encloses into the installation department, magnetic component locates in the installation department.

Furthermore, the base is provided with a first pin shaft, the magnetic assembly comprises a ring magnet and a rocking handle, the rocking handle comprises a connecting rod, and an articulated shaft and a rocking rod which are arranged at two ends of the connecting rod, the articulated shaft and the rocking rod are installed in opposite directions, the magnet is sleeved outside the articulated shaft, the articulated shaft is connected with the first pin shaft in a pivot mode, and the rocking rod is connected with the shutter blade assembly in a pivot mode.

Furthermore, the first connecting portion and the second connecting portion are both provided with a first through hole and a second through hole, the first through hole is connected with the first pin shaft pivot, and the second through hole is connected with the rocker pivot.

Furthermore, the both ends of iron core subassembly are equipped with the third through-hole, the base is equipped with the second round pin axle, the third through-hole with the second round pin axle corresponds.

Further, the base is provided with a first groove and a second groove, the coil is arranged in the first groove around the winding portion, and the magnet is arranged in the second groove.

Furthermore, the circuit board is arranged on the base far away from the cover plate.

The utility model has the beneficial effects that:

1. through designing coil and iron core for the arc structure among the shutter drive arrangement, reduced the coil and wound the degree of difficulty of establishing, simultaneously, wind the coil and establish the iron core width design at portion both ends for being wider than the coil around establishing the portion, played the effect that the restriction coil was around establishing, improved wire-wound precision.

2. Through designing shutter blade for different shapes, reduced shutter blade subassembly's volume for the shutter structure is compacter.

3. Through set up drive arrangement mounting groove at the base, both reduced the volume of base, played fixed drive arrangement's effect again.

Drawings

The drawings are further illustrative of the utility model and the content of the drawings does not constitute any limitation of the utility model.

FIG. 1 is a schematic illustration of the explosive structure of the present invention;

FIG. 2 is a schematic view of the base of the present invention;

FIG. 3 is a schematic structural view of the driving device of the present invention without the magnetic assembly;

FIG. 4 is an exploded view of the magnetic assembly of the present invention;

FIG. 5 is a schematic view of the shutter blade open with the cover plate omitted according to the present invention;

FIG. 6 is a schematic view showing the structures of a first shutter blade and a second shutter blade according to the present invention.

Wherein: a base 1; a first light inlet 11; a first pin 12; a second pin 13; a first groove 14; a second groove 15; a drive device 2; a magnetic member 21; a magnet 211, a crank 212; the connecting rod 212 a; rocker 212b, hinge shaft 212 c; a coil 22; an iron core assembly 23; a coil winding portion 23 a; the first iron core 231; the first relief 231 a; a second core 232; a second relief 232 a; a third through hole 2311; a mounting portion 24; a spacer 3; a second light entrance hole 31; a shutter blade assembly 4; the first shutter blade group 41; a first shutter blade 411; the first connection portion 411 a; the first light-shielding portion 411 b; a stopper 411 c; the second shutter blade group 42; a second shutter blade 421; a second connection portion 421 a; the second light shielding portion 421 b; a first through hole 4111; a second through hole 4112; a cover plate 5; a third light inlet hole 51; a circuit board 6.

Detailed Description

The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.

Referring to fig. 1, an embodiment of a compact shutter according to the present invention includes a base 1, where a first light inlet 11 is disposed in the middle of the base 1; the driving device 2 is arranged on the base 1, the driving device 2 comprises a magnetic assembly 21, a coil 22 and an iron core assembly 23, the coil 22 is wound on the outer surface of the iron core assembly 23 to form an arc-shaped coil winding portion 23a, and the width of the coil winding portion 23a is smaller than that of the end portion of the iron core assembly 23 connected with the coil winding portion; the spacer 3 is provided with a second light inlet hole 31 corresponding to the first light inlet hole 11; the shutter blade assembly 4 is connected with the driving device 2, and the shutter blade assembly 4 can move towards or away from the first light inlet 11 along the base 1 under the driving of the driving device 2; the cover plate 5 is provided with a third light inlet 51 corresponding to the first light inlet 11, the shutter blade assembly 4 is positioned between the spacer 3 and the cover plate 5, and the cover plate 5 is matched with the base 1.

According to the shutter, the coil winding part 23a in the driving device 2 is designed to be of the arc-shaped structure, so that the difficulty of coil winding is reduced, meanwhile, the widths of the iron cores 23 at the two ends of the coil winding part 23a are designed to be wider than that of the coil winding part 23a, so that the effect of limiting coil winding is achieved, and the winding accuracy is improved; by providing the spacer 3, the shutter blade assembly 4 is separated from the drive device 2, preventing interference.

Referring to fig. 5 and 6, preferably, the shutter blade assembly 4 includes a first shutter blade group 41 and a second shutter blade group 42, the second shutter blade group 42 is provided below the first shutter blade group 41, the first shutter blade group 41 includes two first shutter blades 411 having the same shape and facing each other, the first shutter blade 411 includes a first connecting portion 411a, a first light shielding portion 411b, and a stopper portion 411c, the first light shielding portion 411b has one end connected to the first connecting portion 411a and the other end connected to the stopper portion 411c, the first light-shielding portion 411b and the stopper portion 411c form an included angle therebetween, the second shutter blade group 42 includes two second shutter blades 421 having the same shape and disposed opposite to each other, the second shutter blade 421 includes a second connecting portion 421a and a second light shielding portion 421b connected to the second connecting portion 421 a.

When the shutter blade assembly 4 moves towards the direction of shielding the first light inlet 11, the first shutter blade 411 and the second shutter blade 421 at two sides respectively rotate a certain angle towards the direction of shielding the first light inlet 11, and the rotating angle of the first shutter blade 411 is larger than the rotating angle of the second shutter blade 421, so that the first shutter blade 411 and the second shutter blade 421 are partially overlapped to avoid light leakage. When the shutter blade assembly 4 moves in a direction away from the first light inlet 11, the first shutter blade 411 and the second shutter blade 421 on both sides rotate by a certain angle in the direction away from the first light inlet 11, and the first shutter blade 411 and the second shutter blade 421 retract to both sides of the base 1. Referring to fig. 5, the position-limiting part 411c of the first shutter blade 411 on one side is overlapped with the end of the first connecting part 411a of the first shutter blade 411 on the other side, and at the same time, the end of the first connecting part 411a of the first shutter blade is overlapped with the end of the position-limiting part 411c of the first shutter blade 411 on the other side, so that the two first shutter blades 411 are guaranteed to be staggered to prevent collision when moving. In order to reduce the impact force caused when the first connection portion 411a abuts against the base 1 when the blade blocks the first light inlet 11, the base 1 is further provided with a corresponding buffer portion. Since the second shutter blade 421 does not contact with each other when moving in the direction of blocking the first light inlet 11, no limit part is provided, so that the volume of the blade is reduced and the shutter is more compact.

Referring to fig. 3, preferably, the core assembly 23 includes a first core 231 and a second core 232 which are the same in shape, the first core 231 and the second core 232 are symmetrically disposed at the periphery of the first light inlet 11, a first protruding position 231a is outwardly disposed at one end of the first core 231, a second protruding position 232a is outwardly disposed at one end of the second core 232, the first protruding position 231a and the second protruding position 232a are oppositely disposed and form an installation portion 24, and the magnetic assembly 21 is disposed in the installation portion 24.

The first protruding part 231a and the second protruding part 232a are arranged on the first iron core 231 and the second iron core 232, so that the magnetic induction area between the iron core assembly 23 and the magnetic assembly 21 is increased when the power is on, and the driving capability of the driving device 2 is improved.

Referring to fig. 4, preferably, the base 1 is provided with a first pin 12, the magnetic component 21 includes a ring magnet 211 and a rocking handle 212, the rocking handle 212 includes a connecting rod 212a, and a hinge shaft 212c and a rocker 212b which are arranged at two ends of the connecting rod, the hinge shaft 212b and the rocker 212b are installed in opposite directions, the magnet 211 is sleeved outside the hinge shaft 212c, the hinge shaft 212c is pivotally connected to the first pin 12, and the rocker 212b is pivotally connected to the shutter blade component 4.

The magnetic component 21 is fixed through the pivot matching of the first pin shaft 12 and the hinge shaft 212c, the rotation of the shutter blade component 4 is more sensitive through the matching of the magnet 211 and the rocking handle 212, and when the shutter blade component is not electrified, the magnet 211 generates attractive force with the first convex position 231a and the second convex position 232a on two sides, so that the magnet 211 has larger static holding force, and the shock resistance of the driving device 2 is improved.

Referring to fig. 6, preferably, the first connecting portion 411a and the second connecting portion 421a are both provided with a first through hole 4111 and a second through hole 4112, the first through hole 4111 is pivotally connected to the first pin 12, and the second through hole 4112 is pivotally connected to the rocker 212 b.

By providing a first through hole 4111 and a second through hole 4112, the connection of the shutter blade assembly 4 to the base 1 and the driving device 2, respectively, is achieved.

Referring to fig. 3, preferably, third through holes 2311 are formed at two ends of the iron core assembly 23, the base 1 is provided with a second pin 13, and the third through holes 2311 correspond to the second pin 13.

Through setting up third through-hole 2311 and second round pin axle 13, play the effect of fixed iron core subassembly 23.

Referring to fig. 2, preferably, the base 1 is provided with a first groove 14 and a second groove 15, the coil winding portion 23a is disposed in the first groove 14, and the magnet 211 is disposed in the second groove 15.

By providing the first recess 14 and the second recess 15, the function of fixing the core assembly 23 and the magnet 211, respectively, is achieved.

Further, the portable electronic device further comprises a circuit board 6, wherein the circuit board 6 is arranged on the base 1 far away from the cover plate 5.

The circuit board 6 is connected with the base 1 through screws and used for transmitting electric signals.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A shutter of compact construction, characterized by: comprises that

The light source comprises a base, wherein a first light inlet hole is formed in the middle of the base;

the driving device is arranged on the base and comprises a magnetic assembly, a coil and an iron core assembly, the coil is wound on the outer surface of the iron core assembly to form an arc-shaped coil winding part, and the width of the coil winding part is smaller than that of the end part of the iron core assembly connected with the coil winding part;

the spacer is provided with a second light inlet hole corresponding to the first light inlet hole;

the shutter blade assembly is connected with the driving device and can move towards or away from the first light inlet hole along the base under the driving of the driving device;

the shutter blade assembly is located between the spacer and the cover plate, and the cover plate is matched with the base.

2. A compact shutter as claimed in claim 1, wherein: shutter blade subassembly includes first shutter blade group and second shutter blade group, second shutter blade group is located first shutter blade group below, first shutter blade group includes two first shutter blades that the shape is the same, the subtend sets up, first shutter blade includes first connecting portion, first shading portion and spacing portion, first shading portion one end is connected first connecting portion, the other end is connected spacing portion, first shading portion with form the contained angle between the spacing portion, second shutter blade group includes two second shutter blades that the shape is the same, the subtend sets up, second shutter blade include the second connecting portion and with the second shading portion that the second connecting portion are connected.

3. A compact shutter as claimed in claim 1, wherein: the iron core assembly comprises a first iron core and a second iron core which are the same in shape, the first iron core and the second iron core are symmetrically arranged on the periphery of the first light inlet hole, a first convex position is outwards arranged at one end of the first iron core, a second convex position is outwards arranged at one end of the second iron core, the first convex position and the second convex position are oppositely arranged and are encircled to form an installation part, and the magnetic assembly is arranged in the installation part.

4. A compact shutter as claimed in claim 2, wherein: the base is provided with a first pin shaft, the magnetic assembly comprises a ring magnet and a rocking handle, the rocking handle comprises a connecting rod, and a hinged shaft and a rocking rod which are arranged at two ends of the connecting rod, the hinged shaft is opposite to the installation direction of the rocking rod, the magnet is sleeved outside the hinged shaft, the hinged shaft is in pivot connection with the first pin shaft, and the rocking rod is in pivot connection with the shutter blade assembly.

5. A compact shutter as claimed in claim 4, wherein: the first connecting portion and the second connecting portion are both provided with a first through hole and a second through hole, the first through hole is connected with the first pin shaft pivot, and the second through hole is connected with the rocker pivot.

6. A compact shutter as claimed in claim 1, wherein: and third through holes are formed in two ends of the iron core assembly, a second pin shaft is arranged on the base, and the third through holes correspond to the second pin shaft.

7. A compact shutter as claimed in claim 4, wherein: the base is provided with a first groove and a second groove, the coil is arranged in the first groove around the winding part, and the magnet is arranged in the second groove.

8. A compact shutter as claimed in claim 1, wherein: the circuit board is arranged on the base far away from the cover plate.