WO2010058947A2

WO2010058947A2 - Camera door open/shut apparatus

Info

Publication number: WO2010058947A2
Application number: PCT/KR2009/006780
Authority: WO
Inventors: 류재욱; 이영표; 방현철; 김상후; 설현희; 박창욱
Original assignee: (주)하이소닉
Priority date: 2008-11-18
Filing date: 2009-11-18
Publication date: 2010-05-27
Also published as: WO2010058947A3

Abstract

The present invention relates to a camera door open/shut apparatus, and more particularly, to an apparatus for opening/shutting the door of a camera mounted on a portable phone or the like, by using a shape memory alloy which contracts when a current is applied. Said camera door open/shut apparatus comprises: a base which has an opening and is arranged on the front surface of a lens; a door which opens/shuts the opening; a lever for moving the door; and a shape memory alloy (SMA) which contracts when a current is applied to drive the lever to move the door.

Description

Camera Door Opener

The present invention relates to a camera door opening and closing device, and more particularly, to a camera door opening and closing device for opening and closing the door of the camera mounted on the mobile phone using the shape memory alloy shrinking when the current is applied.

With the development of photography and digital technology, mobile phones or PDAs equipped with a camera device for converting an image formed through a lens into an electrical signal using an image pickup device and converting the image into digital data are stored.

The camera device is installed to allow light to enter the lens from the back, front or side of the mobile phone or PDA.

In the early days of mobile phones or PDAs, most of the lenses were exposed to the outside. In this case, dust or foreign substances were frequently caught on the surface of the lens, and the lens was damaged or images were not recorded clearly.

Thus, a camera for a PDA or a mobile phone with a door was developed.

At this time, the opening and closing method of the camera door, a mechanical door opening and closing method that is opened and closed by a mechanical interlock according to a user operation, and an automatic door opening and closing method that is automatically opened and closed under specific conditions has been proposed.

As an example of an automatic camera door opening and closing device, the 'camera door opening and closing device of the folder type mobile phone' published in the Republic of Korea Patent Publication 2004-102482 and the 'camera door opening and closing device of the folder type mobile phone' published in the Patent Publication 2004-102483 are known. .

The 102482 patent is to automatically open and close the camera door consisting of a single door using a solenoid, and the 102483 patent is to open and close the camera door consisting of two doors automatically using a driving motor.

By the way, the prior art as described above, using a solenoid or a motor as a drive source for opening and closing the door, and also needed a power transmission structure for transmitting the power of the drive source to the door.

However, since the solenoid or the motor is large in size, there is a limit in miniaturizing, in particular, slimming the camera door opening and closing apparatus.

An object of the present invention is to provide a camera door opening and closing device that can reduce the overall thickness of the camera door opening and closing device by using a thin shape memory alloy as a drive source for opening and closing the door.

In order to achieve the above object, the first camera door opening and closing device of the present invention includes a camera door opening and closing device for opening and closing a camera lens, the opening being formed on the front of the lens; A sliding door mounted on the base to linearly move and opening and closing the opening; A lever hinged to the base to move the sliding door by a rotary motion; It is made of a shape memory alloy (SMA) coupled to the lever, and contracted when the current is applied, characterized in that for moving the sliding door by rotating the lever by the contraction and relaxation of the shape memory alloy.

The shape memory alloy may be linear or coiled.

The lever includes a first lever for moving the sliding door in one direction; A second lever for moving the sliding door in the other direction, wherein the shape memory alloy comprises: a first mold holding alloy for rotating the first lever; The first lever and the first mold-retaining alloy move the sliding door in one direction, and the second lever and the second mold-retaining alloy are the sliding door. Move to the other direction to open and close the opening.

The sliding door may further include a locking part for fixing the sliding door to prevent the sliding door from flowing in the open or closed state of the opening.

The locking unit includes a magnet mounted on one of the sliding door and the base, and a magnet or magnetic body mounted on the other.

The lever is bent so that one end is in contact with the side of the sliding door, the other end is in contact with the upper side or the lower side adjacent to the side of the sliding door, the other end of the lever is formed with a protrusion projecting in the sliding door direction, A locking groove into which the locking projection is inserted is formed at an upper side or a lower side of the sliding door.

And, one end is connected to the lever and the other end is connected to the base further comprises a spring for elastically supporting the lever.

In order to achieve the above object, the second camera door opening and closing device of the present invention includes a camera door opening and closing device for opening and closing a camera lens, the opening being formed in front of the lens; A rotation door having one end hinged to the base and opening and closing the opening by rotation; An opening / closing mover mounted on the base to linearly move and rotating the rotary door when the linear door moves in contact with the rotary door; A first shape suppressing alloy (SMA) coupled to the opening and closing mover and contracted upon application of current; When the opening is opened or closed is made of a locking portion for fixing the rotating door, it is characterized in that the rotating door is moved by moving the opening and closing mover by the contracting and relaxing action of the first shape of the alloy.

The rotating door is formed with a guide groove open to one side between one end and the opening, the opening and closing mover is disposed in the guide groove and in contact with the rotary door, the guide groove is formed to become smaller toward one direction, As the opening and closing mover moves linearly along the guide groove, the rotating door rotates to open the opening.

The rotating door may include a first rotating door having one end hinged to the base and opening and closing the opening by rotation; One end is hinged to the base, and the second rotary door for opening and closing the opening by rotation with the first rotary door, the guide groove, between the one end of the first rotary door and the opening A first guide groove open in a direction of the second rotating door; And a second guide groove open between the one end of the second rotary door and the opening in the first rotation door direction, and the opening / closing mover is disposed between the first guide groove and the second guide groove. In contact with the rotary door and the second rotary door, the interval between the first guide groove and the second guide groove is smaller and smaller toward the one direction in the opening, the first rotary door as the linear movement in one direction And a second rotating door rotates to open the opening.

The locking unit may include an opening holding member for maintaining the opening of the opening by the rotating door; The rotating door is made of a closing holding member to maintain the closed state.

The opening holding member is hinged to the base, and the locking member is caught on the other end of the rotary door when the rotary door rotates to open the opening; A locking spring for adding an elastic force to the locking member so as to maintain a state in which the other end of the rotary door is locked; The second mold restraint alloy is connected to the hook member and contracts when an electric current is applied. The second mold restraint alloy rotates the hook member in a direction opposite to the direction of elastic force of the hook spring.

The closing holding member is connected to the rotating door is made of a closing spring to add an elastic force so that the rotating door is rotated in the direction of closing the opening.

The first mold restraint alloy may be linear or coiled.

The second mold restraint alloy may be linear or coiled.

The base is formed with a stopper for preventing the rotation of the rotary door to be rotated only up to a certain angle during the rotation of the rotary door.

In order to achieve the above object, a third camera door opening and closing apparatus of the present invention includes a camera door opening and closing apparatus for opening and closing a camera lens, the opening having a base disposed on the front of the lens; A sliding door mounted on the base to linearly move and opening and closing the opening; A first mold-retaining alloy which contracts when a current is applied to linearly move the sliding door in one direction; A second mold holding alloy which contracts when a current is applied and linearly moves the sliding door in another direction; The sliding door is made of a locking portion for preventing the flow of the sliding door when the opening or closing the opening, the first mold restraint alloy and the first mold restrained by the shrinkage action of the first mold restraint alloy and the second mold restraint alloy The two-shaped mold retaining alloy may move the sliding door in a left and right direction to open and close the opening.

The first mold restraint alloy and the second mold restraint alloy may be linear or coiled.

The first mold-retaining alloy surrounds the other side of the sliding door to move the sliding door in one direction when shrinking, and the second mold-retaining alloy surrounds one side of the sliding door to the other direction when shrinking. Move to.

The camera door opening and closing device includes: a first movable body disposed between the other side surface of the sliding door and the first mold restraint alloy to push the sliding door in one direction when the first mold restraint alloy contracts; A second movable body disposed between one side of the sliding door and the second mold restraint alloy to push the sliding door in another direction when the second mold restraint alloy shrinks; A first spring that connects the first movable body to the base and elastically supports in an opposite direction to the second movable body; And a second spring that connects the second mover to the base and elastically supports the second mover in an opposite direction to the first mover.

The locking unit may include an elastic engaging protrusion mounted to one of the sliding door and the base; The other side of the sliding door or the base is made of a locking projection protruding in the direction of the elastic locking projection in the portion corresponding to the elastic locking projection, the elastic locking projection is caught on the locking jaw when opening or closing the opening of the sliding door To prevent flow.

In addition, the locking unit, the elastic engaging projection mounted to any one of the sliding door or the base; Is formed in the other of the sliding door or the base is made of a locking groove into which the elastic locking projection is inserted, the elastic locking projection is inserted into the locking groove when opening or closing the opening to prevent the sliding door to flow.

In order to achieve the above object, the fourth camera door opening and closing apparatus of the present invention includes a camera door opening and closing apparatus for opening and closing a camera lens, the opening being formed in front of the lens; A sliding door mounted on the base to linearly move and opening and closing the opening; A first mold-type suppression alloy having one end connected to one end of the sliding door and the other end connected to the base and contracted upon application of current to linearly move the sliding door in one direction; A tension spring having one end connected to the other end of the sliding door and the other end connected to the base to pull the sliding door in the other direction; The sliding door is made of a locking portion for preventing the flow of the sliding door when the opening or closing the opening, the sliding door is moved in one direction by the contracting action of the first mold restraining alloy to open and close the opening It features.

The first mold restraining alloy is formed in a linear or coil shape.

The base has guide rails formed on upper and lower portions of the opening, respectively, and the upper and lower portions of the sliding door are inserted into the guide rail and slide in the left and right directions.

A locking part is formed in the sliding door, and the locking part comprises: a locking protrusion which is hinged to the base and detached from the locking part by rotation; A locking spring for adding an elastic force to rotate the locking projection in the direction of the locking portion; The second projection retaining alloy is connected to the locking projections and contracts when an electric current is applied. The second projection locking alloy rotates the locking projections in a direction opposite to the direction of elastic force of the locking springs when contracting.

The base is formed with a stopper for preventing the sliding door to move so that the sliding door moves only a certain distance.

According to the first camera door opening and closing apparatus of the present invention, since the camera door is opened and closed using the shape memory alloy, the thickness of the camera door opening and closing apparatus mounted on a mobile phone can be made thinner.

1 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the first embodiment of the present invention closed the opening;

2 is a state diagram in a state where the mobile phone camera door opening and closing device according to the first embodiment opens the opening;

3 is a perspective view of a sliding door of the mobile phone camera door opening and closing apparatus according to the first embodiment,

4 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the second embodiment of the present invention is closed in the opening;

5 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the second embodiment opens the opening.

6 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the third embodiment of the present invention closes the opening;

7 is a state diagram in a state in which the mobile phone camera door opening and closing device opens the opening by shrinkage of the first mold clamping alloy according to the third embodiment;

8 is a state diagram in a state in which the first mold clamping alloy is relaxed in FIG. 7;

9 is a state diagram in a state where the mobile phone camera door opening and closing device closes the opening by shrinkage of the second mold clamping alloy in FIG. 8;

10 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the fourth embodiment of the present invention closes the opening;

11 is a state diagram in a state where the mobile phone camera door opening and closing apparatus according to the fourth embodiment opens the opening.

Hereinafter, a first embodiment of the present invention will be described.

1 is a state diagram in a state where the mobile phone camera door opening and closing device according to the first embodiment of the present invention closed the opening, Figure 2 is a state in which the mobile phone camera door opening and closing device according to the first embodiment the opening opening 3 is a perspective view of the sliding door of the mobile phone camera door opening and closing apparatus according to the first embodiment.

The camera door opening and closing apparatus of the present invention can be applied to a device equipped with a camera such as a digital camera as well as a mobile phone.

Hereinafter, the present embodiment will be described on the premise that the camera door opening and closing apparatus is mounted on the mobile phone.

The camera door opening and closing apparatus of the present invention is a device for opening and closing the lens of the camera, the base 10, the sliding door 20, the levers (31, 35), the shape memory alloy (41, 45), It consists of a locking part.

The base 10 may be an outer case of the mobile phone camera, or may be made of a separate member and mounted outside the mobile phone camera.

An opening 12 is formed in the base 10, and the opening 12 is disposed in front of the camera lens so that the opening 12 and the lens lie in a straight line in the optical axis direction.

The sliding door 20 is mounted to the base 10 so as to be linearly movable to open and close the opening 12.

To this end, the base portion 10 is provided with a recess 15 in which the sliding door 20 is disposed and moved in a concave groove shape, and the upper and lower sides of the sliding door 20 are respectively shown in FIG. 3. As shown, the guide protrusion 26 is formed, and the guide groove 26 is formed long in the base 10 so that the guide protrusion 26 can be inserted and slide.

Opening / closing holes 22 are formed in the sliding door 20, and when the center of the opening 22 formed in the base 10 coincides with the center of the opening / closing hole 22 when the sliding door 20 moves, The opening 12 is in an open state.

In addition, the seating portion 15 is formed larger than the left and right length of the sliding door 20 so that the sliding door 20 can be sufficiently moved in the left and right directions, the opening 12 is formed in the seating portion 15 Formed.

The

levers

31 and 35 are hinged to the base 10 and serve to push and move the sliding door 20 by a rotary motion.

If necessary, the

levers

31 and 35 may be mounted to pull and move the base 10.

The

levers

31 and 35 may be bent in a '-' shape such that one end is in contact with a side surface of the sliding door 20 and the other end is in contact with an upper side or a lower side adjacent to the side surface of the sliding door 20. And hinged to the base 10 between one end and the other end.

In addition, the other end of the lever (31, 35) is formed in the sliding protrusion 20 toward the locking projection 32, the upper and lower side of the sliding door 20 is inserted into the locking projection (32) A locking groove 27 is formed.

In addition, in order for the locking protrusion 32 formed at the other ends of the

levers

31 and 35 to be inserted into the locking groove 27 of the sliding door 20, the depth of the seating portion 15 may be defined by the sliding door ( It is lower than the height of 20 so that the upper portion of the sliding door 20 protrudes to the upper portion of the base 10 in a state in which the sliding door 20 is disposed in the seating portion (15).

The

levers

31 and 35 are disposed on the left side of the sliding door 20 to move the sliding door 20 in one direction, and to the right side of the sliding door 20. And a second lever 35 which moves the sliding door 20 in the other direction.

The second lever 35 is arranged in a state in which the first lever 31 is symmetrical again and then in the state of vertically symmetrical again.

In addition, the sliding door 20 is moved by arranging the first lever 31 and the second lever 32 on the upper and lower portions of the sliding door 20 instead of the left and right sides of the sliding door 20. You can also

That is, the first lever 31 and the second lever 32 are sufficient to be disposed in a position that can move the sliding door 20 in the opposite direction.

In addition, one end may be connected to the

levers

31 and 35 and the other end may be connected to the base 10 so that a spring (not shown) may be mounted to elastically support the

levers

31 and 35.

The spring pulls the

levers

31 and 35 in the opposite direction of the sliding door 20.

The

shape memory alloys

41 and 45 are coupled to the other ends of the

levers

31 and 35 to rotate the

levers

31 and 35.

The

levers

31 and 35 are rotated by the

shape memory alloys

41 and 45 to move the

levers

31 and 35 in the opposite directions by pushing the sliding doors 20.

The

shape memory alloys

41 and 45 have a property of shrinking when an electric current is applied.

Accordingly, by applying or blocking current to the

shape memory alloys

41 and 45, the

levers

31 and 35 can be rotated by the contracting and relaxing action of the

shape memory alloys

41 and 45.

The

shape memory alloys

41 and 45 may be formed in a coil shape. However, the

shape memory alloys

41 and 45 may be formed in a linear shape to slim the camera door opening and closing device.

The

shape memory alloys

41 and 45 may include a first shape memory alloy 41 for rotating the first lever 31 and a second shape memory alloy 42 for rotating the second lever 35. Is done.

The first lever 31 and the first mold restraint alloy 41 move the sliding door 20 in one direction, and the second lever 35 and the second mold restraint alloy 42 are the sliding door ( 20 is moved in the other direction to open and close the opening 12.

The locking part serves to fix the sliding door 20 to prevent any sliding of the sliding door 20 in a state in which the sliding door 20 opens or closes the opening 12.

The locking unit may include a magnet mounted on one of the sliding door 20 and the base 10, and a magnetic material or a magnet mounted on the other one.

In the present embodiment, the first magnet 51 is mounted on the upper side and the lower side of the sliding door 20, and the second magnet 52 is disposed on the upper side and the lower side of the seating part 15 of the base 10. Was fitted.

In this case, the polarity of the first magnet 51 mounted on the sliding door 20 and the polarity of the second magnet 52 mounted on the base 10 may be opposite to each other.

In addition, the distance between the second magnet 52 mounted on the base 10 is greater than the distance between the first magnet 51 mounted on the sliding door 20, so that the first magnet 51 is When moving in the left and right direction with the sliding door 20 to contact only one of the second magnet 52 mounted on the upper side and the lower side of the base (10).

In the present embodiment, as shown in FIG. 1, the first magnet 51 mounted on the upper side of the sliding door 20 in the state in which the opening 12 is closed is the second mounted on the upper side of the housing. The first magnet 51 which is in contact with the magnet 52 and is mounted to the lower side of the sliding door 20 with the opening 12 opened as shown in FIG. 2 is mounted to the lower side of the housing. Contacted second magnet 52.

As described above, the first and

second magnets

51 and 52 are in contact with each other in the open or closed state of the opening 12 to prevent the sliding door 20 from being randomly moved.

Hereinafter, an operation process of the first embodiment having the above-described configuration will be described.

As shown in FIG. 1, when the opening 12 is closed, the first magnet 51 mounted on the upper side of the sliding door 20 and the second magnet 52 mounted on the upper side of the housing are shown. Since they have different polarities, the sliding doors 20 are fixed to each other by contact by mutual attraction.

At this time, one end of the first lever 31 is in contact with the left side of the sliding door 20, the locking projection 32 formed on the other end is inserted into the locking groove 27 formed on the lower side of the sliding door 20. The second lever 35 is in a free state.

Since the locking protrusion 32 formed on the first lever 31 is inserted into the locking groove 27, one end of the first lever 31 is rotated in the opposite direction of the sliding door 20. Is prevented.

In addition, when the spring connecting the first lever 31 and the base 20 is mounted, the first lever 31 may be prevented from rotating in the sliding door 20 direction.

At this time, the shape memory alloy (41, 45) is a state in which no current is applied, it is placed in a relaxed state.

When opening the opening 12 in this state, when the user presses a separate button, a current is applied to the first shape-retaining alloy 41 by a controller (not shown).

When a current is applied to the first mold restraint alloy 41, the first mold restraint alloy 41 is contracted, so that the first mold restraint alloy 41 is the other end of the first lever 31. Will pull.

As the other end of the first lever 31 is pulled by the first mold restraint alloy 41, the first lever 31 is rotated clockwise as shown in FIG. 2.

As the first lever 31 is rotated in the clockwise direction, the sliding door 20 in contact with the other end of the first lever 31 moves to the right.

At this time, the rotational force of the first lever 31 is the mutual attraction of the first magnet 51 mounted on the upper side of the sliding door 20 and the second magnet 52 mounted on the upper side of the base 10. Must be greater than

When the sliding door 20 is moved to the right as shown in FIG. 2, the second lever 35 is pushed by the right surface of the sliding door 20 to rotate counterclockwise.

At this time, since no current is applied to the second mold restraint alloy 42, the second mold restraint alloy 42 is placed in a relaxed state, so that the second lever 35 has the sliding door 20. When moving to the right direction it is possible to rotate counterclockwise while naturally pushing by the sliding door 20.

Of course, when the second lever 35 and the base 10 are connected by the spring, the second lever 35 is in contact with the right side of the sliding door 20 from the initial state by the elastic force of the spring. And as shown in Figure 2 without.

In addition, when the sliding door 20 approaches the right side of the seating portion 15, the first magnet 51 mounted below the sliding door 20 and the lower side of the base 10 are mounted. Due to the mutual attraction of the second magnet 52, the sliding door 20 is better to move.

The sliding door 20 which has been moved in the right direction stops moving while being in contact with the right wall surface of the seating part 15, and the first magnet 51 and the lower door which are mounted below the sliding door 20. It is fixed not to flow in the left direction by the mutual attraction of the second magnet 52 mounted to the lower side of the base 10.

On the other hand, the second lever 35 is rotated in the counterclockwise direction so that the locking projection 32 is inserted into the locking groove (27).

The controller, which is not shown, cuts off the current applied to the first mold restraint alloy 41 after a predetermined time to prevent the first mold restraint alloy 41 from being continuously heated to the current.

It is preferable that the interruption time of the current applied to the first shape-retaining alloy 41 is made immediately after the opening 12 is opened.

When the current applied to the first mold restraint alloy 41 is cut off, the first mold restraint alloy 41 is in a relaxed state, and the first lever 31 is in a state capable of freely rotating.

Of course, when the first lever 31 and the base 10 are connected by the spring, the first lever 31 is rotated to the initial state by the elastic force of the spring.

As the sliding door 20 moves in the right direction as described above, as shown in FIG. 2, the opening and closing holes 22 formed in the sliding door 20 and the opening 12 formed in the base 10 are aligned with each other. When placed in, the opening 12 is in an open state.

As shown in FIG. 2, when the opening 12 is to be closed in the state in which the opening 12 is opened, the control unit not shown applies a current to the second shape storage alloy 42 to provide the current. After the sliding door 20 is moved to the left by the second lever 35, the sliding door 20 is completely moved to the left and the opening 12 is closed. 42) to cut off the current applied to it.

The operation process for this is the same as the operation process for opening the opening 12, a detailed description thereof will be omitted.

As described above, by opening and closing the door of the mobile phone camera using the shape memory alloy, it is possible to achieve a slimmer product by making the thickness of the opening and closing device thinner.

Hereinafter, a second embodiment of the present invention will be described.

4 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the second embodiment of the present invention closed the opening, Figure 5 is a state in the mobile phone camera door opening and closing device according to the second embodiment in the open state State diagram.

As shown in Figures 4 and 5, the camera door opening and closing apparatus of the present invention, the base 110, the rotating door, the opening and closing mover 130, the first shape locking alloy 140, the locking unit, etc. Is done.

The base 110 may be an outer case of the mobile phone camera, or may be made of a separate member and mounted outside the mobile phone camera.

An opening 111 is formed in the base 110, and the opening 111 is disposed in front of the camera lens so that the opening 111 and the lens lie in a straight line in the optical axis direction.

One end of the rotary door is hinged to the base 110, and the opening and closing of the opening 111 by rotation.

One end of the rotary door refers to a place far from the opening 111 of both ends of the rotary door.

The rotating door may be made of one or more, and in the present embodiment, the first rotating door 121 includes two rotating doors, that is, a first rotating door 121 and a second rotating door 125. ) And the second rotary door 125 is rotated to open and close the opening 111 together.

One end of the first rotating door 121 is hinged to the base 110 and opens and closes a part of the opening 111 by rotation.

One end of the second rotating door 125 is hinged to the base 110 and opens and closes the other part of the opening 111 by rotation.

That is, the first rotating door 121 and the second rotating door 125 respectively open and close a part of the opening 111 to open and close the opening 111 as a whole.

The first rotating door 121 and the second rotating door 125 contact each other to close the opening 111, and rotate in opposite directions to open the opening 111.

The opening and closing mover 130 is mounted to the base 110 so as to be linearly movable, and serves to rotate the rotary door during linear movement in contact with the rotary door.

To this end, the rotary door is formed with a guide groove open to one side between one end and the opening 111.

The guide groove is formed in a curved shape that gradually decreases toward the opposite direction from the opening 111, that is, in one direction of the rotary door.

In the present embodiment, the guide groove, the first guide groove 122 is formed between the one end of the first rotary door 121 and the opening 111 in the direction of the second rotary door 125 and the first The second guide groove 126 is formed between the one end of the second rotary door 125 and the opening 111 in the direction of the first rotary door 121.

The first guide groove 122 and the second guide groove 126 are formed to become smaller toward the opposite direction of the opening 111, respectively, the first guide groove 122 and the second guide groove ( The interval between the 126 is formed to become smaller toward the opposite direction in the opening 111.

On the contrary, the first guide groove 122 and the second guide groove 126 are formed to become smaller toward the opening 111, respectively, so that the first guide groove 122 and the second guide groove ( The interval between the 126 may be formed to become smaller toward the opening 111 direction.

In addition, the opening and closing mover 130 has a circular cross section and is disposed between the first guide groove 122 and the second guide groove 126 so that the first rotating door 121 and the second rotating door are disposed. Contact 125.

Accordingly, as shown in FIG. 5, the opening / closing mover 130 linearly moves in the opposite direction of the opening 111 between the first guide groove 122 and the second guide groove 126. The first rotating door 121 and the second rotating door 125 rotate to open the opening 111.

That is, since the interval between the first guide groove 122 and the second guide groove 126 becomes smaller toward the opposite direction of the opening 111, the first guide groove 122 and the second guide groove ( The first rotating door 121 and the second rotating door 125 are rotated about one end as the opening / closing mover 130 disposed between the openings 126 moves linearly in the opposite direction of the opening 111. The opening 111 is opened.

The first shape-retaining alloy 140 is connected to the opening and closing mover 130 to generate power to linearly move the opening and closing mover 130.

Since the first shape-retaining alloy 140 is contracted when a current is applied, the first and second retainer alloys 140 may be moved away from the opening 111.

At this time, the first shape of the memory alloy 140 is made of a linear or coil shape, it is preferable that the linear shape for the slimming of the switchgear.

The locking part serves to fix the rotating door when the opening 111 is opened or closed.

The locking part may include an opening holding member 150 for maintaining the opening of the opening 111 and a closing holding member for maintaining the state in which the rotating door closes the opening 111. Is made of.

The opening and holding member 150 includes a locking member 151, a locking spring 152, and a second shape storage alloy 153.

The locking member 151 is hinged to the base 110 and serves to fix the rotary door by engaging the other end of the rotary door when the rotary door rotates to open the opening 111. do.

To this end, the locking member 151 has a protrusion formed in the rotation door direction to serve to hang the other end of the rotation door.

And, the locking spring 152, one end is fixed to the base 110 and the other end is coupled to the locking member 151, so that the other end of the rotary door is held on the locking member 151 It serves to add elastic force.

In this embodiment, the torsion spring was used as the locking spring 152.

The second shape locking alloy 153 is connected to the locking member 151 and contracted when a current is applied to rotate the locking member 151 in a direction opposite to the elastic force direction of the locking spring 152.

By rotating the locking member 151 in a direction opposite to the direction of the elastic force of the locking spring 152 by contracting the second shape retaining alloy 153, the rotating door is released from the locking member 151 and freely rotated. It becomes the state that can do it.

At this time, the second mold retaining alloy 153 is made of a linear or coil type, it is preferably made of a linear for slimming the switchgear.

In addition, in the present embodiment, the rotation door is composed of two, that is, the first rotation door 121 and the second rotation door 125, and the locking member 151 and the locking spring 152 are also two. The first rotary door 121 and the second rotary door 125 are rotated to fix the first rotary door 121 and the second rotary door 125 when the opening 111 is opened. It could be.

The second shape-retaining alloy 153 may be made of two and connected to each of the two locking members 151, but the two second locking members 151 are connected to the two locking members 151, as in the present embodiment. ) Can be operated simultaneously.

Since the second shape-retaining alloy 153 is linear, its path may be changed through a plurality of rollers or the like as shown in FIGS. 4 and 5.

The closing and holding member is connected to the first rotating door 121 and the second rotating door 125 so that the first rotating door 121 and the second rotating door 125 close the opening 111. It is made of a closed spring 160 for applying an elastic force to rotate in the direction.

The closing spring 160 is composed of two ends of each of which is connected to the first rotating door 121 or the second rotating door 125, the other end may be fixed to the base (110).

However, in this embodiment, only one closed spring 160 is used so that one end is connected to the first rotating door 121 and the other end is connected to the second rotating door 125.

On the other hand, the base 110 is rotated of the first rotary door 121 and the second rotary door 125 so that only the rotation of the first rotary door 121 and the second rotary door 125 to a certain angle during rotation. A stopper 112 is formed to block the gap.

Hereinafter, an operation process of the second embodiment having the above-described configuration will be described.

As shown in FIG. 4, in the state in which the opening 111 is closed, the first rotating door 121 and the second rotating door 125 contact each other by the elastic force of the closing spring 160. The opening 111 is closed.

In this case, the opening and closing mover 130 is located between the first guide groove 122 and the second guide groove 126 in the front, that is adjacent to the opening 111 direction, the first shape locking alloy 140 ) And the second mold clamping alloy 153 are placed in a relaxed state because no current is applied.

In this state, when the user manipulates a separate button or the like to open the opening 111, the controller (not shown) applies a current to the first shape-retaining alloy 140.

When a current is applied to the first mold restraint alloy 140, the first mold restraint alloy 140 is contracted, and the opening / closing mover 130 has the first guide groove 122 and the second guide groove. A straight line moves in a direction away from the opening 111 between 126.

At this time, the distance between the first guide groove 122 and the second guide groove 126 is formed to become smaller as the distance from the opening 111, the first guide groove 122 and the second As the opening / closing mover 130 disposed between the guide grooves 126 moves away from the opening 111, as illustrated in FIG. 5, the first rotating door 121 and the second rotating door 125 are formed. The opening 111 is opened while inflating the closing spring 160 by rotating about one end hinged to the base 110, respectively.

When the first rotary door 121 and the second rotary door 125 are rotated by a predetermined angle or more, each other end is in contact with the locking member 151.

In this state, if the first rotating door 121 and the second rotating door 125 further rotates, the locking member 151 is rotated by the first rotating door 121 and the second rotating door 125. Thus, the locking spring 152 is compressed or inflated.

When the first rotating door 121 and the second rotating door 125 pass over the protruding portion of the locking member 151, the locking by the elastic restoring force of the locking spring 152 that has been compressed or expanded. The member 151 is rotated in reverse to hang the other ends of the first rotating door 121 and the second rotating door 125.

That is, although the first rotating door 121 and the second rotating door 125 are to be rotated in the direction of closing the opening 111 by the elastic force of the closing spring 160, the first rotating door 121 ) And the other end of the second rotary door 125 are caught by the locking member 151, respectively, so that the opening 111 is kept open.

When the opening 111 is maintained in the open state as described above, the controller (not shown) cuts off the current applied to the first mold restraint alloy 140 so that the first mold restraint alloy 140 continues to the current. To prevent heating.

Meanwhile, as shown in FIG. 5, when the opening 111 is to be closed while the opening 111 is open, the controller, which is not shown, applies a current to the second shape storage alloy 153. do.

Then, the second shape-retaining alloy 153 is contracted, so that the locking member 151 is rotated in the direction opposite to the direction of the elastic force acting on the locking spring 152.

As the locking member 151 is rotated by the second shape locking alloy 153, the first rotating door 121 and the second rotating door 125 which are caught by the locking member 151 are expanded. It is rotated in the direction of closing the opening 111 by the elastic restoring force of the closing spring 160 to close the opening 111 as shown in FIG.

In this case, since the first and second moving doors 130 are placed in a relaxed state, the first guide 130 is rotated by the first rotating door 121 and the second rotating door 125. Free movement between the groove 122 and the second guide groove 126 is moved in the direction of the opening 111 as shown in FIG.

In addition, the control unit not shown cuts off the current applied to the second mold restraint alloy 153 to prevent the second mold restraint alloy 153 from being continuously heated to the current.

Hereinafter, a third embodiment of the present invention will be described.

6 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the third embodiment of the present invention closed the opening, Figure 7 is opening and closing the mobile phone camera door by the shrinkage of the first shape-retaining alloy according to the third embodiment FIG. 8 is a state diagram in a state in which the opening of the device is opened, and FIG. 8 is a state diagram in a state where the first mold restraint alloy is relaxed in FIG. 7, and FIG. It is a state figure in the state which the switchgear closed the opening part.

6 to 9, the mobile phone camera door opening and closing apparatus of the present invention, the base 210, the sliding door 220, the first shape memory alloy 230, the first moving body 235 And a second mold clamping alloy 240, a second movable member 245, a locking portion, and the like.

The base 210 may be an outer case of the mobile phone camera, or may be made of a separate member and mounted outside the mobile phone camera.

An opening 212 is formed in the base 210, and the opening 212 is disposed in front of the camera lens, such that the opening 212 and the lens lie in a straight line in the optical axis direction.

The sliding door 220 is mounted to the base 210 to be linearly movable to open and close the opening 212.

In this case, a seating portion 211 for displacing and moving the sliding door 220 is formed in the base 210 in a concave shape.

The left and right lengths of the seating portion 211 are longer than the left and right lengths of the sliding door 220, and the upper and lower lengths are almost the same, and the opening 212 is formed in the seating portion 211.

In addition, in order to guide the movement of the sliding door 220, the sliding door 220 and the base 210 to form a guide protrusion and a guide groove, which is a known technique, so that the sliding door 220 moves better. can do.

Opening and closing holes 222 are formed in the sliding door 220, and when the center of the opening and closing holes 222 and the opening 212 formed in the base 210 coincide with each other when the sliding door 220 moves, The opening 212 is in an open state.

The first mold restraint alloy 230 contracts when a current is applied to linearly move the sliding door 220 in one direction, and the second mold restraint alloy 240 contracts when a current is applied to the sliding door ( 220 is a linear movement in the other direction.

The sliding door 220 moves in the horizontal direction to open and close the opening 212 by the contracting action of the first shape restraining alloy 230 and the second shape alloy as described above.

The first mold restraint alloy 230 and the second mold restraint alloy 240 may be formed in a linear or coil shape, and preferably made in a linear shape, so that the thickness of the switchgear may be thinner.

The first mold restraining alloy 230 and the second mold restraining alloy 240 respectively contact both side surfaces of the sliding door 220 to move the sliding door 220 in a left and right direction by a contraction operation.

The first mold restraint alloy 230 and the second mold restraint alloy 240 may be in direct contact with both side surfaces of the sliding door 220, respectively, as in the present embodiment. It may be indirectly contacted through the second moving body 245.

The first movable body 235 is disposed between the other side of the sliding door 220 and the first mold restraint alloy 230 to contract the sliding door 220 when the first mold restraint alloy 230 shrinks. It acts to push in one direction.

The second movable member 245 is disposed between one side of the sliding door 220 and the second mold restraint alloy 240 to contract the second mold rest alloy 240. ) To the other direction.

That is, the first mold restraining alloy 230 and the second mold restraining alloy 240 respectively surround the first movable body 235 and the second movable body 245 while being in contact with each other, and the first movable body ( 235 and the second movable body 245 are moved.

The first moving body 235 and the second moving body 245 are respectively mounted on the seating portion 211 so as to be linearly movable in the same direction as the sliding door 220.

In addition, the first movable member 235 is elastically connected to the base 210 by a first spring 237.

The first spring 237 connects the first movable body 235 to the base 210 in a direction opposite to the second movable body 245, so that the second movable body 245 is connected to the first movable body 235. The elastic force pulled in the opposite direction of) is added.

In addition, the second moving body 245 is elastically connected to the base 210 by a second spring 247.

The second spring 247 connects the second movable body 245 to the base 210 in a direction opposite to the first movable body 235, so that the first movable body 235 is connected to the second movable body 245. The elastic force pulled in the opposite direction of) is added.

That is, the first spring 237 and the second spring 247 add an elastic force to move in a direction away from each other, the first moving body 235 and the second moving body 245, respectively.

The locking part prevents the flow of the sliding door 220 when the sliding door 220 opens or closes the opening 212.

The locking part may include an elastic locking protrusion 225 mounted on an upper side or a lower side of the sliding door 220 and a portion of the locking door 220 corresponding to the elastic locking protrusion 225 on the base 210. It consists of a locking projection 215 protruding in the direction.

In the present embodiment, the elastic locking protrusion 225 is mounted on the lower side of the sliding door 220, and the locking step 215 is formed on the lower side of the base 210.

When the lower portion of the elastic locking projection 225 is in contact with the locking jaw 215 is in a compressed state, when moving to both sides of the locking jaw 215, the elastic locking projection 225 is elastically restored to the elastic locking stone The machine 225 is caught in the stepped portion of the locking step 215 to prevent the sliding door 220 to move arbitrarily in the left and right directions.

The position and length of the elastic locking projections 225 and the locking projections 215 may be such that the elastic locking projections 225 are caught by the locking projections 215 when the opening 212 is opened or closed. ) Is not enough to flow.

Unlike the present embodiment, the locking projection 215 may be formed on the sliding door 220, and the elastic locking protrusion 225 may be mounted on the base 210.

In addition, the locking unit, the elastic engaging projection 225 mounted to any one of the sliding door 220 or the base 210 and the other of the sliding door 220 or the base 210 is formed in the elastic The locking protrusion 225 is formed of a locking groove (not shown) into which the locking protrusion 225 is inserted, and the elastic locking protrusion 225 is inserted into the locking groove when the opening 212 is opened or closed, so that the sliding door 220 is arbitrarily selected. It can also be prevented from flowing.

Hereinafter, an operation process of the third embodiment having the above-described configuration will be described.

As shown in FIG. 6, in the state in which the opening 212 is closed, both the first mold restraint alloy 230 and the second mold restraint alloy 240 are relaxed.

In addition, the sliding door 220 moves in one direction to close the opening 212, and the elastic locking protrusion 225 is in contact with the right side of the locking jaw 215, so that the elastic locking protrusion 225 is closed. Due to the elastic force of the sliding door 220 does not flow arbitrarily.

In this state, in order to open the opening 212, when a current is applied to the first mold restraint alloy 230, the first mold restraint alloy 230 contracts while the first movable body 235 is leftward. Move to.

As the first movable member 235 moves to the left side, as shown in FIG. 7, the sliding door 220 also moves to the left side, so that the opening / closing hole 222 formed in the sliding door 220 is opened. The opening 212 is opened in line with 212.

In this case, as the first moving body 235 moves to the left side, the first spring 237 is in an inflated state, and the elastic locking protrusion 225 is compressed along the locking step 215. After moving to the left and elastically restored, the left side of the locking jaw 215 is caught so that the sliding door 220 does not flow while the opening 212 is open.

Then, the control unit is not shown in order to prevent the first shape of the storage alloy 230 is excessively heated when the current applied to the first shape of the storage alloy 230, the first shape of the storage alloy 230 Shut off the current applied to.

Then, the first shape restraint alloy 230 is relaxed, and as shown in FIG. 8, the first movable member 235 moves to the right side by the elastic restoring force of the expanded first spring 237.

In this state, when the opening 212 is to be closed, a current is applied to the second mold keeping alloy 240.

Then, as the second shape-retaining alloy 240 is contracted, as shown in FIG. 9, the second movable body 245 is moved in the right direction, and as a result, the second spring 247 is expanded while the sliding door is expanded. 220 moves to the right by the second movable member 245 to close the opening 212.

At this time, the elastic locking projection 225 is moved to the right side along with the sliding door 220 is caught on the right side of the locking jaw 215, the sliding door 220 in the state in which the opening 212 is closed Does not flow.

Then, the control unit is not shown, in order to prevent the second mold storage alloy 240 is excessively heated when the current applied to the second mold storage alloy 240 is maintained, the second mold storage alloy 240 Shut off the current applied to.

Then, the second shape-retaining alloy 240 is relaxed, and as shown in FIG. 6, the second moving body 245 is moved to the left side by the elastic restoring force of the expanded second spring 247.

Hereinafter, a fourth embodiment of the present invention will be described.

10 is a state diagram in a state in which the mobile phone camera door opening and closing device according to the fourth embodiment of the present invention closed the opening, Figure 11 is a state in which the mobile phone camera door opening and closing device according to the fourth embodiment in the open state State diagram.

As shown in Figure 10 and 11, the camera door opening and closing apparatus of the present invention, the base 310, the sliding door 320, the first shape locking alloy 330, the tension spring 340, The locking unit 350 and the like.

The base 310 may be an outer case of the mobile phone camera, or may be made of a separate member and mounted outside the mobile phone camera.

An opening 311 is formed in the base 310, and the opening 311 is disposed in front of the camera lens so that the opening 311 and the lens lie in a straight line in the optical axis direction.

The sliding door 320 is mounted to the base 310 to move linearly to open and close the opening 311.

In order to linearly move the sliding door 320, guide rails are formed at upper and lower portions of the opening 311, respectively, and the upper and lower portions of the sliding door 320 are guide rails. It is inserted into and slides in the left and right directions.

In addition, the sliding door 320 is formed with a locking portion 325 is fastened to the locking portion 350 in the opposite direction of the tension spring 340.

In this embodiment, a groove is formed in the locking portion 325 so that the locking protrusion 351 of the locking portion 350 to be described later is inserted.

One end of the first mold restraint alloy 330 is connected to one end of the sliding door 320, the other end is connected to the base 310, and contracted when a current is applied to straighten the sliding door 320 in one direction. Move it.

The first mold restraint alloy 330 is preferably made of a linear, zigzag or coil shape.

One end of the tension spring 340 is connected to the other end of the sliding door 320, and the other end thereof is connected to the base 310 to generate a tension force pulling the sliding door 320 in the other direction.

In this embodiment, the first shape-retaining alloy 330 is connected to one end of the sliding door 320, that is, the left side, and the tension spring 340 is connected to the other end of the sliding door 320.

However, unlike the present exemplary embodiment, the tension spring 340 may be connected to the left side of the sliding door 320, and the first shape suppression alloy 330 may be connected to the right side of the sliding door 320.

The sliding door 320 is moved to the right by the tension force of the tension spring 340 in a free state to maintain a state in which the opening 311 is closed.

The locking part 350 serves to prevent the flow of the sliding door 320 when the sliding door 320 opens or closes the opening 311. The sliding door 320 refers to the sliding door 320. It is mounted on the base 310 in the opposite direction of the tension spring 340.

That is, the locking part 350 is disposed in the opposite direction of the tension spring 340 to fix the sliding door 320 when the tension spring 340 is inflated, thereby expanding the tension spring 340. Keep it intact.

The locking unit 350 is hinged to the base 310, the locking projection 351 is detached to the locking portion 325 by rotation, and the locking portion 325 the locking projection 351 It comprises a locking spring 352 for applying an elastic force to rotate in the direction, and the second shape locking alloy 353 connected to the locking projection 351 and contracted when the current is applied.

When the sliding door 320 moves in the direction of the locking projection 351, the locking projection 351 is fastened to the locking portion 325 by the elastic force of the locking spring 352 to the sliding door 320. Fix it.

In addition, unlike the present embodiment, the locking portion 350 may be disposed in the tension spring 340 direction and the locking portion 325 may be formed.

In addition, the second shape-retaining alloy 353 rotates the locking protrusion 351 in a direction opposite to the direction of the elastic force of the locking spring 352 when it is contracted, so that the sliding door 320 is moved from the locking protrusion 351. Let go.

The second mold restraint alloy 353 is preferably formed in a linear, zigzag or coil shape.

In addition,

stoppers

315 and 16 are formed on the base 310 to prevent the sliding door 320 from moving so that the sliding door 320 moves only to a certain distance.

That is, the

stoppers

315 and 16 are formed in both directions of the sliding door 320, respectively, so that the sliding door 320 is linearly moved by the first shape-retaining alloy 330 and the tension spring 340. The sliding door 320 to move only to a predetermined position.

Hereinafter, an operation process of the fourth embodiment having the above-described configuration will be described.

As shown in FIG. 10, since the current is blocked in the first mold restraint alloy 330 in the state in which the opening 311 is closed, the first mold restraint alloy 330 is in a relaxed state.

In addition, the sliding door 320 is moved to the right direction by the tension of the tension spring 340 to close the opening 311.

At this time, the sliding door 320 is caught by the stopper 315 to move only to a predetermined position in the right direction and is placed in a stopped state.

If the user operates a separate button to open the opening 311 in this state, the control unit not shown applies a current to the first shape-retaining alloy 330.

When a current is applied to the first mold restraint alloy 330, the first mold restraint alloy 330 contracts, and thus, the sliding door 320 connected to the first mold restraint alloy 330 is the guide. Move left along the rail.

At this time, the contracting force of the first shape-retaining alloy 330 should be greater than the tensile force of the tension spring 340.

As the first shape-retaining alloy 330 shrinks, the tension spring 340 expands as the sliding door 320 moves to the left.

In addition, when the sliding door 320 is moved to a certain distance, the locking portion 325 is in contact with the locking projection 351.

In this state, when the sliding door 320 moves further to the left side, the locking part 325 further moves to the left side while pushing and rotating the locking protrusion 351.

In this case, the locking spring 352 connected to the locking protrusion 351 is compressed at a moment, and when the locking portion 325 crosses the locking protrusion 351, the locking spring 352 expands again by an elastic restoring force and the locking protrusion 351. ) To rotate in reverse so that the engaging projection 351 is fastened to the engaging portion 325.

In addition, the sliding door 320 is moved to the left only a certain distance by the stopper 316.

When the locking protrusion 351 is fastened to the locking portion 325, the sliding door 320 has moved to the left side, and the opening 311 is opened.

At this time, the clamping force of the locking projection 351 and the locking portion 325 should be greater than the tensile force of the tension spring 340.

When the opening 311 is completely open as described above, the controller (not shown) may be connected to the first mold restraint alloy 330 to prevent the first mold restraint alloy 330 from being heated due to continuous application of current. Shut off the applied current.

When the opening 311 is to be closed while the opening 311 is opened as described above, the control unit not shown by a separate button operation by the user applies a current to the second shape memory alloy 353. do.

As the current is applied to the second mold clamping alloy 353, the second mold clamping alloy 353 contracts and rotates the locking protrusion 351 in a direction opposite to the elastic force direction of the locking spring 352. Let's do it.

As the locking protrusion 351 is rotated in a direction opposite to the direction of the elastic force of the locking spring 352, the locking protrusion 351 is separated from the locking portion 325, and thus the locking protrusion 351 and the locking portion 325. ) Is released.

At this time, the sliding door 320 is moved along the guide rail to the right direction as shown in FIG. 10 by the elastic restoring force of the tension spring 340 that is expanded to close the opening 311.

In addition, the sliding door 320 is moved and stopped only by a predetermined distance by the stopper 315.

When the opening 311 is closed, the control unit not shown cuts off the current applied to the second shape memory alloy 353.

The camera door opening and closing apparatus of the present invention is not limited to the above-described embodiment, and may be variously modified and implemented within the range in which the technical idea of the present invention is permitted.

The door opening and closing device of the present invention is applied to a camera requiring a small size, such as a camera of a mobile phone, so that the thickness of the door opening and closing device can be made thinner.

Claims

In the camera door opening and closing device for opening and closing the camera lens,

A base having an opening formed in the front of the lens;

A sliding door mounted on the base to linearly move and opening and closing the opening;

A lever hinged to the base to move the sliding door by a rotary motion;

Coupled to the lever, made of a shape memory alloy (SMA) that is contracted upon application of current,

Camera door opening and closing device, characterized in that for moving the sliding door by rotating the lever by the contraction and relaxation action of the shape memory alloy.
The method of claim 1,

The shape memory alloy camera door opening and closing device characterized in that consisting of a linear or coiled.
The method according to claim 1 or 2,

The lever is

A first lever for moving the sliding door in one direction;

It is made of a second lever for moving the sliding door in the other direction,

The shape memory alloy,

A first mold clamping alloy for rotating the first lever;

Made of a second mold clamping alloy for rotating the second lever,

The first lever and the first mold restraint alloy moves the sliding door in one direction, and the second lever and the second mold restraint alloy moves the sliding door in the other direction to open and close the opening. Camera door opener.
The method according to claim 1 or 2,

And a locking unit configured to fix the sliding door to prevent the sliding door from flowing in the state in which the sliding door opens or closes the opening.
The method of claim 4, wherein

The locking unit,

And a magnet mounted on one of the sliding door and the base, and a magnet or magnetic material mounted on the other.
The method of claim 1,

The lever is bent so that one end is in contact with the side of the sliding door, the other end is in contact with the upper or lower side adjacent to the side of the sliding door,

The other end of the lever is formed with a protrusion projecting in the sliding door direction,

Camera opening and closing device, characterized in that the locking groove is formed in the upper or lower side of the sliding door is inserted into the locking projection.
The method of claim 6,

And one end is connected to the lever and the other end is connected to the base, the camera door opening and closing device further comprising: a spring for elastically supporting the lever.
In the camera door opening and closing device for opening and closing the camera lens,

A base having an opening formed in the front of the lens;

A rotation door having one end hinged to the base and opening and closing the opening by rotation;

An opening / closing mover mounted on the base to linearly move and rotating the rotary door when the linear door moves in contact with the rotary door;

A first shape suppressing alloy (SMA) coupled to the opening and closing mover and contracted upon application of current;

When the opening is opened or closed is made of a locking portion for fixing the rotating door,

Camera door opening and closing device, characterized in that for rotating the rotary door by moving the opening and closing the mover by the contracting and relaxing action of the first shape-retaining alloy.
The method of claim 8,

The rotating door is formed with a guide groove open to one side between one end and the opening,

The opening and closing mover is disposed in the guide groove and in contact with the rotating door,

The guide groove is formed smaller and smaller toward one direction, the camera door opening and closing device is characterized in that the rotating door is rotated to open the opening as the opening and closing move the linear movement along the guide groove.
The method of claim 9,

The rotating door is,

A first rotating door having one end hinged to the base and opening and closing the opening by rotation; One end is hinged to the base, and made of a second rotary door to open and close the opening by rotation with the first rotary door,

The guide groove,

A first guide groove opened between one end of the first rotary door and the opening in the second rotary door direction; A second guide groove formed between one end of the second rotation door and the opening in the first rotation door direction;

The opening and closing mover is disposed between the first guide groove and the second guide groove in contact with the first rotating door and the second rotating door,

The interval between the first guide groove and the second guide groove becomes smaller toward one direction in the opening, and the first rotating door and the second rotating door rotate as the opening / closing mover moves linearly in one direction of the opening. Camera door opening and closing device, characterized in that for opening the opening.
The method according to any one of claims 8 to 10,

The locking unit,

An opening holding member for keeping the rotating door in the open state;

Camera door opening and closing device characterized in that the rotating door made of a closing holding member to maintain the closed state.
The method of claim 11,

The opening holding member,

A locking member hinged to the base and the other end of the rotary door being caught when the rotary door rotates to open the opening;

A locking spring for adding an elastic force to the locking member so as to maintain a state in which the other end of the rotary door is locked;

Is connected to the locking member, made of a second mold-shaped alloy that is contracted upon application of current,

And the second mold retaining alloy rotates the locking member in a direction opposite to the direction of elastic force of the locking spring when the second alloy is held in the contracted state.
The method of claim 11,

The closing holding member,

And a closing spring connected to the rotating door to add an elastic force so that the rotating door rotates in the direction of closing the opening.
The method of claim 8,

The first shape of the alloy is a camera door opening and closing device, characterized in that consisting of a linear or coil.
The method of claim 12,

The second mold holding alloy is a camera door opening and closing device characterized in that the linear or coil.
The method according to any one of claims 8 to 10,

And the stopper is formed on the base to stop the rotation of the rotating door so as to rotate only up to a predetermined angle when the rotating door is rotated.
In the camera door opening and closing device for opening and closing the camera lens,

A base having an opening formed on the front surface of the lens;

A sliding door mounted on the base to linearly move and opening and closing the opening;

A first mold-retaining alloy which contracts when a current is applied to linearly move the sliding door in one direction;

A second mold holding alloy which contracts when a current is applied and linearly moves the sliding door in another direction;

When the sliding door is opened or closed the opening is made of a locking portion to prevent the flow of the sliding door,

The first door locking alloy and the second mold locking alloy move the sliding door in left and right directions to open and close the opening by the contracting action of the first mold locking alloy and the second mold locking alloy. Switchgear.
The method of claim 17,

And the first mold restraint alloy and the second mold restraint alloy are linear or coiled.
The method of claim 18,

The first shape-retaining alloy surrounds the other side of the sliding door to move the sliding door in one direction during contraction.

The second shape-retaining alloy surrounds one side of the sliding door, so that the sliding door moves in the other direction when contracted.
The method of claim 19,

The camera door opening and closing device,

A first movable body disposed between the other side of the sliding door and the first mold restraint alloy to push the sliding door in one direction when the first mold restraint alloy contracts;

A second movable body disposed between one side of the sliding door and the second mold restraint alloy to push the sliding door in another direction when the second mold restraint alloy shrinks;

A first spring that connects the first movable body to the base and elastically supports in an opposite direction to the second movable body;

And a second spring that connects the second movable body to the base and elastically supports the second movable body in an opposite direction to the first movable body.
The method of claim 17,

The locking unit,

An elastic locking protrusion mounted on one of the sliding door and the base;

In the remaining one of the sliding door or the base is made of a locking projection protruding in the direction of the elastic locking projection in the portion corresponding to the elastic locking projection,

The elastic locking projection is a camera door opening and closing device characterized in that the sliding door is prevented from flowing when the opening or closing of the opening is caught on the locking jaw.
The method of claim 17,

The locking unit,

An elastic locking protrusion mounted on one of the sliding door and the base;

Is formed in the other of the sliding door or the base is made of a locking groove into which the elastic locking projection is inserted,

The elastic locking projection is inserted into the locking groove when opening or closing the opening of the camera door opening and closing device, characterized in that to prevent the sliding door to flow.
In the camera door opening and closing device for opening and closing the camera lens,

A base having an opening formed on the front surface of the lens;

A sliding door mounted on the base to linearly move and opening and closing the opening;

A first mold-type suppression alloy having one end connected to one end of the sliding door and the other end connected to the base and contracted upon application of current to linearly move the sliding door in one direction;

A tension spring having one end connected to the other end of the sliding door and the other end connected to the base to pull the sliding door in the other direction;

When the sliding door is opened or closed the opening is made of a locking portion to prevent the flow of the sliding door,

And the sliding door moves in one direction to open and close the opening by the contracting action of the first shape suppressing alloy.
The method of claim 23,

The first shape locking alloy is a camera door opening and closing device characterized in that the linear or coil shape.
The method of claim 23,

The base has a guide rail formed on the upper and lower portions of the opening,

The upper and lower portions of the sliding door is inserted into the guide rail and the camera door opening and closing device, characterized in that sliding in the left and right directions.
The method of claim 23,

The sliding door is provided with a locking portion,

The locking unit,

A locking protrusion hinged to the base and detachable from the locking part by rotation;

A locking spring for adding an elastic force to rotate the locking projection in the direction of the locking portion;

Is connected to the locking projections, made of a second mold-type alloy that shrinks upon application of current,

And the second shape retaining alloy rotates the locking projection in a direction opposite to the direction of elastic force of the locking spring when it is contracted.
The method according to any one of claims 23 to 26,

And a stopper formed at the base to stop the movement of the sliding door so that the sliding door moves only up to a certain distance.