KR20010087743A - Operating system of cellular phone's folder - Google Patents

Abstract

PURPOSE: An apparatus for driving a folder of a cellular phone is provided to open and close the folder in a uniform position by automatically correcting a phase difference according to the unstableness and the load of the driving apparatus. CONSTITUTION: A pair of axis fixing portions(11) is protruded at one side of a body having an operation button and a microphone, and a fixing groove is formed in the axis fixing portions(11) in a confronted direction. A rotating portion(21) is formed in a folder having a display window and a speaker, and forms a protrusion inserted into the fixing groove(11) at its one side and has an opened shape at its other side. A driving portion(30) receives the power for generating a certain rotation force and prevents an inverse rotation. A hinge shaft(40) is combined with an output terminal of the driving portion(30) for inserting a came formed at its end portion into the fixing groove(11). An elastic portion(50) selectively fixes and releases the hinge shaft(40). A switch(60) is composed at one side of the body for providing an operation signal to the driving portion(30). A position sensing portion(70) is installed in a position corresponding to the hinge shaft(40) and the rotating portion(21) for providing a control signal to the driving portion(30) when its phase is identical to phases of the hinge shaft(40) and the rotating portion(21).

Description

Operating system of cellular phone's folder

The present invention relates to a mobile phone which can open and close a folder as well as automatic and manual. More particularly, the mobile phone can automatically open and close a folder at a constant position by automatically correcting a phase difference according to instability and load of a driving device. It relates to a folder drive device of the phone.

In general, a cellular phone (Cellular Phone / Personal Communication Services) is a terminal that receives a mobile communication service to enable the use within a certain radius within the service area by radioizing a part of the locally fixed subscriber line. Whereas the communication is used in a fixed place by the line number, the mobile phone can make a call regardless of the place by the logical personal number regardless of the line.

Such a mobile phone is explosive in demand due to its ease of portability and convenience in use, and is becoming a miniaturized and multifunctional device in order to meet various needs of consumers.

In general, a mobile phone has a bar type in which the number (function) button is exposed to the outside according to its shape, a flip type having a cover shielding the number (function) button with a cover, and a main body. It is classified into a folder type that is folded in half, and according to the trend of miniaturization, the spread of folder type mobile phones is increasing.

1 is a perspective view showing a general folding type cellular phone according to the prior art.

Conventional folder type mobile phone 100 is composed of a main body 110 and a folder 120, the main body 110 usually includes a number (function) button and a microphone, there are various configurations for handset inside The parts are built in, and a battery pack for power supply is mounted on one side.

The folder 120 includes a display window for displaying various call information and function information, a speaker, and the like, as well as various components.

The folder 120 type mobile phone 100 has one end of the folder 120 supported by the hinge means with respect to the main body 110, and is opened and closed by rotating the forward or reverse direction about the hinge means. .

That is, the opening and closing structure for opening and closing the folder 120 of the mobile phone 100 is usually made by the configuration as shown in FIG.

The coil spring 112, which is an elastic member, is fixed to the shielded end portion of one side in the hollow housing 111 formed integrally with the main body 110, that is, the one side of the coil spring 112, namely, On the open end side of the housing 111, a male coupler 113 tapered on both sides is fixed so that the center portion protrudes.

And, the open end of the housing 111 is formed with a connecting portion 115, one end is connected to the folder 120, the other end is in the shape corresponding to the end of the male coupler 113, the inner side is recessed The tapered female coupler 114 is formed at one side of the main body 110, and the male coupler 113 and the female coupler 114 are formed to be coupled to each other in a tapered portion.

The male coupler 113 and the female coupler 114 serve as hinge shafts, and the female coupler 114 interlocks when the folder 120 rotates, and the male coupler 113 is connected to the coil spring 112. When the female coupler 114 is rotated by a predetermined angle or more, as shown in FIG. 3, the male coupler 113 is pushed backward while compressing the coil spring 112. Will be

Therefore, when the folder 120 is opened, when the rotation angle of the female coupler 114 interlocked with the folder 120 is smaller than the taper angle of the male coupler 113 and the female coupler 114, the coil spring 112 is used. Coupling force is applied between the male coupler 113 and the female coupler 114 by the elastic force of the) so that the folder 120 is returned to its original position and kept closed, but the rotation angle of the female coupler 114 is tapered. In the case where the female coupler 114 is larger, the folder 120 is opened because the female coupler 114 is recombined with the male coupler 113 while rotating about 180 °.

On the contrary, even when the folder 120 is closed, when the rotation angle of the female coupler 114 is smaller than the taper angle between the male coupler 113 and the female coupler 114, the coil spring 112 tries to return to the original position. A large force is applied to keep the folder 120 open, but when the rotation angle of the female coupler 114 is greater than the taper angle, the male coupler 113 and the female coupler 114 rotate rapidly by a certain angle or more. Since the tapered portion of the recombination folder 120 is closed.

However, since the conventional folder-type cellular phone 100 as described above has a relatively heavy weight of the folder 120, the folder 120 is held by the other hand while the main body 110 is held by one hand to open and close the folder 120. There was an inconvenience to open.

In order to improve such a problem, a mobile phone has been recently proposed to open and close the folder 120 more easily. A representative example of this is to use a driving device.

That is, the folder 120 is automatically opened and closed by operating the driving device by operating the switch with one hand, and the most important consideration here is that not only automatic but also manual should be possible at the same time.

4 is a cross-sectional view showing a main portion of a mobile phone in which a driving device is configured in the housing 111. As shown in FIG. 4, the driving device includes a motor 116 receiving elastic support force of the coil spring 112 on one side thereof, The gearbox 117 is configured on the output end side of the motor 116.

The motor 116 is operated in conjunction with a switch receiving a user's operation force, and generates a predetermined driving force only for a time set by a timer.

Gear box 117 is connected to the output terminal of the motor 116 to reduce the rotation ratio and at the same time to prevent the reverse, the male coupler 113 is coupled to the output end side to selectively engage the opposing female coupler 114. do.

In the conventional mobile phone, when the switch is operated to automatically open the folder 120, the male coupler 113 and the female coupler 114 are engaged with each other and are fixed to each other so that the main body 110 of the motor 116 is centered on the shaft. Since the rotation, the folder 120 having the housing 111 is fixed to the motor 116 is also rotated for a predetermined time to achieve an open state from the main body 110.

On the contrary, when the switch is re-operated to close the folder 120, the main body 110 of the motor 116 is rotated in the opposite direction about the shaft, so that the folder 120 is also rotated in the reverse direction and closed.

Meanwhile, when the folder 120 is rotated in one direction or the reverse direction from the main body 110 in order to manually open or close the folder 120, slip occurs between the male coupler 113 and the female coupler 114 and the male coupler 113. ) Compresses the coil spring 112 integrally with the motor 116 to cause a displacement, and the folder 120 is rotated. When the folder 120 reaches a predetermined position, the male coupler 113 is returned to its original position by the elastic bearing force of the coil spring 112, and the folder 120 is opened rapidly by re-joining with the female coupler 114. It is closed.

However, in the conventional clamshell mobile phone as described above, since the motor 116 that rotates the folder 120 is operated for a predetermined time by a timer, when the output characteristic of the motor 116, that is, the RPM is changed, the folder 120 is completely replaced. There is a problem that the operation does not reach the set position (open position / close position) to make the opening and closing.

In addition, when the folder 120 is automatically opened or closed, when the folder 120 is held by a hand or is stored in a pocket or the like, and an external force is applied to the folder 120 due to an incorrect operation of the folder 120, the male coupler 113 is disposed at a specific position. ) Will stop.

Therefore, in the manual mode, the folder 120 is not completely closed or the folder 120 is opened at an opening angle of 150 ° or more, thereby causing a problem that the opening and closing becomes unstable.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a stable opening and closing of a folder by correcting a phase difference that occurs when a motor output characteristic is changed or when automatic and manual mixing are used. The purpose is to provide a folder drive device.

1 is a perspective view showing a folding cell phone according to the prior art,

FIG. 2 is a cross-sectional view illustrating a line “A-A” of FIG. 1;

3 is a cross-sectional view showing an operating state of FIG.

4 is a cross-sectional view showing another embodiment of a folding cell phone according to the prior art;

5 is a perspective view showing a folding mobile phone according to the present invention;

6 is a cross-sectional view showing the main components of the mobile telephone according to the present invention;

FIG. 7 is a cross-sectional view illustrating a line “B-B” of FIG. 6;

8 to 10 are cross-sectional views showing another embodiment of FIG.

11 to 13 are cross-sectional views showing that the folder is opened in the automatic mode in the folder drive device of the mobile phone according to the present invention;

14 to 16 are cross-sectional views showing that the folder is closed in the automatic mode in the folder driving apparatus of the mobile phone according to the present invention;

17 to 18 are cross-sectional views showing a state in which an overload is applied to a folder in the folder driving apparatus of the mobile phone according to the present invention.

<Description of the symbols for the main parts of the drawings>

1: mobile phone 2: battery pack

10: main body 11: storehouse

12: fixing groove 20: folder

21: rotating part 22: protrusion

30: driving means 31: motor

32: reduction gear body 40: hinge shaft

41: cam 50: elastic means

60: switch 70: position detection means

71: detection unit 72: position sensor

In order to achieve the above object, the present invention includes a pair of shaft fixing portion protruding on one side of the main body having a control button and a microphone and a fixing groove formed in a direction facing each other;

A rotating part formed in a folder having a display window and a speaker, and having one side formed with a protrusion fitted into one shaft fixing part, and the other side having an open shape;

Drive means for receiving a power supply to generate a predetermined rotational force and prevent reversal;

A hinge shaft coupled to an output end of the driving means and having a cam formed at an end thereof inserted into a fixing groove of the shaft fixing part;

Elastic means for selectively fixing and releasing the hinge shaft;

A switch provided at one side of the main body to apply an operation signal to a driving means;

The hinge shaft and the rotating unit are installed at positions corresponding to each other, and when the phase is characterized in that the position detection means for applying a control signal to the drive means.

Hereinafter, described in detail with reference to the accompanying drawings a preferred embodiment of the present invention.

5 is a perspective view showing a general foldable mobile phone, Figures 6 to 7 are sectional views showing the folder driving apparatus of the mobile phone according to the present invention.

The mobile phone 1 is composed of a main body 10 including operation buttons for handset and a microphone, and a folder 20 provided with a display window and a speaker for displaying various types of information.

The main body 10 is provided with a pair of shaft fixing portion 11 having a fixing groove 12 in a direction facing each other protruding on one side, the folder 20 of the pair of shaft fixing portion 11 on one side A protrusion 22 fitted into one of the shaft fixing parts 11 and the fixing groove 12 is formed, and the other side includes a pivot 21 having an open shape.

Such a structure is substantially the same as the structure of the conventional cellular phone 1.

The folder driving apparatus of the mobile phone according to the present invention is largely composed of a driving means 30, a hinge shaft 40, an elastic means 50, a switch 60 and a position sensing means 70.

The driving means 30 is installed in the cylindrical pivot 21 formed on one side of the folder 20 and generates a driving force for rotating the folder 20. The driving means 30 includes a motor 31 and a speed reducer. It is composed of a body (32).

The motor 31 generates a predetermined rotational force in the forward and reverse directions in conjunction with the operation force of the switch 60 to be described later, and is operated by receiving power supply from the battery pack 2 mounted on the mobile phone 1.

The reduction gear body 32 is coupled to the output terminal of the motor 31 to reduce the speed received by the rotational force, such, the reduction gear body 32 may be composed of a plurality of planetary gear group. The planetary gear group has a deceleration ratio of a certain ratio to simultaneously perform the functions of deceleration and reversal prevention.

Therefore, the driving means 30 is transmitted to the hinge shaft 40 to be described later in a state in which the driving force generated in the motor 31 is decelerated through the planetary gear group.

The hinge shaft 40 is integrally rotated by being coupled to the output end of the driving means 30 and a rectangular cam 41 is formed at the end thereof, and the cam 41 is formed to protrude on one side of the main body 10. It is inserted into the fixing groove 12 formed in one of the pair of anchoring parts 11, and is elastically supported by the elastic means (50).

The elastic means 50 is typically formed of a material having excellent elastic strain and restoring force, and a pair of leaf springs are installed at predetermined intervals in the shaft fixing groove 12 into which the cam 41 of the hinge shaft 40 is inserted. This pair of leaf springs can be used to contact the two sides of the cam (41) to be elastically supported.

Here, the interval between the pair of leaf springs is made to have a width proportional to the shortest width of the rectangular cam 41, and when the cam 41 rotates to the outer direction by the longest width of the cam 41 Is elongated.

Therefore, when the hinge shaft 40 is elastically supported by the elastic support force of the elastic means 50 such as the aforementioned leaf spring, the motor 31 in the automatic mode is the hinge shaft 40 as the final output end. The outer body rotates with the fixed point, and in the manual mode, the hinge shaft 40 is prevented from reversing by the reduction gear body 32 to deform the elastic means 50.

The switch 60 operates the driving means 30 by receiving a user's operating force, and when the user operates the switch 60, the switch 60 is configured to output a predetermined electric signal to the motor 31 connected to the output terminal.

The switch 60 is provided in the form of a typical on / off switch 60 on one side of the main body 10 in the present invention, depending on the shape of the mobile phone (1) or the position of the user's easy operation force It may be provided in a form.

The position detecting means 70 drives the driving means 30 to correct the phase difference by 30 ° with respect to 0 ° and 150 °, which are opening and closing angles of the folder 20.

That is, the position detecting means 70 is provided with a sensing unit 71 and a position sensor 72 at positions corresponding to the hinge shaft 40 and the rotating unit 21, respectively, and the sensing unit 71 and the position. When the detector 72 is in phase, a predetermined control signal is applied to the driving means 30 to stop driving of the motor 31.

Meanwhile, the sensing unit 71 and the position sensor 72 of the position detecting unit 70 may be installed as shown in FIGS. 7 to 10 so as to receive in-phase information at a predetermined angle.

That is, as shown in Figure 7 attached to the outer periphery of the hinge shaft 40, the sensing unit 71 is installed at an interval of 180 °, and one position sensor (in the inner periphery of the rotating unit 21, which is the opposite position) 72) can be configured to be in phase with each other 180 degrees to apply an electrical signal to the motor 31.

In addition, as shown in FIG. 8, one sensing unit 71 is installed at the outer circumference of the hinge shaft 40, and one position sensor 72 is installed at the inner circumference of the rotating unit 21, which is a position opposite thereto. The phase can be made at 360 ° mutually, and as shown in Figure 9, the sensing unit 71 is installed one and the position detector 72 is installed in pairs at 180 ° intervals in phase with each other 180 ° This can be done.

As shown in FIG. 10, a pair of sensors 71 and a position sensor 72 may be installed at 180 ° intervals to acquire in-phase information.

The sensor 71 and the position sensor 72 of the position detecting means 70 may output a predetermined electric signal by interaction, and a magnetic sensor or a photo sensor, which is commonly used, may be used. An apparatus in the form of a contact switch 60 that outputs a predetermined electrical signal at the time of contact may be used.

Referring to the folder driving apparatus of the mobile phone according to the present invention made as described above is as follows.

When the user rotates the folder 20 in the forward or reverse direction to manually open and close the folder 20, the rotating part 21 rotates in the forward or reverse direction in conjunction with the rotation of the folder 20, this time The hinge shaft 40 installed on the eastern portion 21 also rotates integrally.

Here, in the cam 41 of the hinge shaft 40, the reduction gear body 32 of the driving means 30 prevents reversal, so that the rectangular connecting shaft forcibly extends the elastic means 50 and rotates.

Therefore, as described above, the rotational force generated from the folder 20 by the user's operation force is elastically extended to the elastic means 50 supporting the cam 41 of the hinge shaft 40 so that the folder 20 can be opened and closed manually. It becomes possible.

11 to 13 are cross-sectional views showing that the folder 20 is opened in the automatic mode in the folder 20 driving device of the mobile phone 1 according to the present invention.

When the user operates the switch 60 provided on one side of the main body 10 to automatically open the folder 20, the switch 60 transmits a predetermined electric signal to the motor 31 of the driving means 30. Will be authorized.

The motor 31 receives a power supply from the battery pack 2 mounted on the mobile phone 1 and generates a predetermined rotational force in a direction for opening the folder 20. The rotational force of the motor 31 is It is transmitted to the hinge shaft 40 coupled to the output end in a state of being decelerated at a constant rate through the reduction gear body 32.

Here, since the cam 41 is rotated at an angle to extend the elastic means 50 so that the folder 20 is elastically shielded, the cam 41 is elastic means 50 when the motor 31 is driven. The position is moved horizontally by the support force of.

Therefore, since the hinge shaft 40 is elastically supported by the elastic means 50 installed in the fixing groove 12 of the shaft fixing portion 11 to maintain the fixed state, the hinge shaft ( 40 is not rotated, the outer body constituting the drive means 30 is rotated.

Therefore, the folder 20 having the rotating part 21 on which the driving means 30 is mounted is rotated in one direction to move to the open position.

At this time, when the hinge shaft 40 rotates and the sensing unit 71 installed on the outer circumference becomes in phase with the position sensor 72 installed on the inner circumference of the pivoting unit 21, a predetermined electric signal is applied to the motor 31. When the drive is stopped, the opening of the folder 20 is completed.

14 to 16 are cross-sectional views showing that the folder 20 is closed in the automatic mode in the folder 20 driving device of the mobile phone 1 according to the present invention.

When the user operates the switch 60 provided on one side of the main body 10 to automatically close the folder 20, the electric signal generated from the switch 60 is applied to the motor 31 of the driving means 30. do.

At this time, the motor 31 receives a power supply from the battery pack 2 mounted on the mobile phone 1 and generates a predetermined rotational force in a direction for shielding the folder 20. The rotational force of the motor 31 is It is transmitted to the hinge shaft 40 coupled to the output stage in a state of being decelerated at a predetermined rate through the reduction gear body 32.

Here, the hinge shaft 40 is supported by the elastic means 50 installed in the fixing groove 12 of the shaft fixing portion 11, the cam 41 is elastically maintained to maintain a fixed state, the hinge shaft 40 ) Is not rotated, the outer body constituting the driving means 30 is rotated.

Therefore, the driving means 30 is mounted on the pivoting portion 21 of the folder 20 so that the folder 20 is rotated in the reverse direction and moved to a shielded position.

In this case, when the folder 20 reaches the shielded position, the folder 20 is no longer rotated by contact with the main body 10, so that the load acts on the driving means 30 and at the same time the cam 41 of the hinge shaft 40. The elastic force of the elastic means 50 is overcome and rotated.

Subsequently, as the hinge shaft 40 rotates, the sensing unit 71 and the position sensor 72 become in phase so that driving of the motor 31 is stopped, so that the shielding of the folder 20 is completed.

17 to 18 are cross-sectional views showing a state in which the overload is applied to the folder 20 in the automatic mode in the folder 20 driving device of the mobile phone 1 according to the present invention.

When the load is received during the operation in which the folder 20 is opened in the automatic mode as shown in FIG. 17, the folder 20 is fixed and the hinge shaft 40 overcomes the elastic bearing force of the elastic means 50 and rotates.

Accordingly, the sensing unit 71 of the hinge shaft 40 is in phase with the position sensor 72 and the driving of the motor 31 is stopped, and the positions of the hinge shaft 40 and the folder 20 are in the manual mode. Will have the same location.

Therefore, by the elastic restoring force of the elastic means 50, the folder 20 is moved to a position close to the position of the opening and shielding to achieve the opening and closing.

Folder drive device of the mobile phone according to the present invention configured and acted as described above has the advantage that the reliability of the operation is improved because the folder is opened and closed at the right position by the position sensing means.

In particular, the folder driving device of the mobile phone according to the present invention automatically transfers the folder to the initial position or the open position even when an external force is applied to the folder during the operation of automatically opening and shielding the folder, thereby ensuring continuity of operation. There is an advantage.

Therefore, the present invention can not only open and close the folder as well as automatic and manual, but also can correct the phase difference of the folder generated when the automatic and manual are mixed, and can achieve a functional improvement of the mobile phone with a simple component configuration. There is an advantage.

In addition, although the present invention described above has been described as a folding type mobile phone by way of example, the present invention is not necessarily limited to a folding type mobile phone, and a mobile communication device having a cover (flip) which is hinged to be rotatable in a main body. And various types of portable electronic products.

Claims (13)

A pair of shaft fixing parts which protrude on one side of the main body having an operation button and a microphone and have fixing grooves formed in mutually opposite directions; A rotating part formed in a folder having a display window and a speaker, and having one side formed with a protrusion fitted into one shaft fixing part, and the other side having an open shape; Drive means for receiving a power supply to generate a predetermined rotational force and prevent reversal; A hinge shaft coupled to an output end of the driving means and having a cam formed at an end thereof inserted into a fixing groove of the shaft fixing part; Elastic means for selectively fixing and releasing the hinge shaft; A switch provided at one side of the main body to apply an operation signal to a driving means; And a position detecting means for applying a control signal to the driving means when the hinge shaft and the rotating part are installed at positions corresponding to each other. The method of claim 1, The driving means is a folder driving device of the mobile telephone, characterized in that installed in the rotating part. The method of claim 1, The driving means is connected to the switch to generate a forward and reverse rotational force of the motor; Connected to the output terminal of the motor folder drive device characterized in that made of a reduction gear to reduce the rotation ratio and prevent reversal. The method of claim 3, wherein The reduction gear body is a folder driving device of a mobile phone, characterized in that comprising a plurality of planetary gear group. The method of claim 1, The driving means is a folder driving device of the mobile telephone, characterized in that the drive is stopped when a control signal is applied from the position sensing means. The method of claim 1, And the elastic means is elastically deformed so that the cam is rotated by an external force acting on the folder. The method of claim 1, The elastic means is a folder driving device of the mobile phone, characterized in that the pair of leaf springs that are installed at a predetermined interval on the side of the fixed groove into which the hinge shaft is inserted and support the cam elastically on both sides. The method of claim 1, And the position detecting means drives the driving means to correct the phase difference by 30 degrees with respect to 0 and 150 degrees of opening and closing of the folder. The method of claim 1, The position detecting means includes a sensing unit installed at a predetermined position on the outer circumference of the hinge shaft; The folder driving device of the mobile phone, characterized in that it is installed on the inner periphery of the rotating unit facing the sensing unit, the position sensor for outputting an electrical signal by interaction with the sensing unit. The method of claim 9, The sensing unit and the position detectors are installed one by one so as to be in phase at a predetermined position. The method of claim 9, The pair of sensing units are installed at intervals of 180 °, the folder driving device of the mobile phone, characterized in that one is installed. The method of claim 9, The sensing unit is installed one, the position sensor is a folder driving device of the mobile phone, characterized in that a pair is installed at intervals of 180 °. The method of claim 9, The sensing unit and the position sensor are each a folder driving device of the mobile phone, characterized in that the pair is installed at intervals of 180 °.