KR100970981B1 - hinge module for portable terminal - Google Patents

Abstract

The present invention relates to a hinge module for rotatable a display unit relative to a main body of a mobile communication terminal, the hole and the hole formed in the center of the connecting means coupled to the main body to transfer a signal applied from the main body to the display unit is disposed; A fixed hinge portion including a long hole formed to be spaced apart from the central axis and a first stopper coupled to slide the long axis, and a first stopper coupled to the display portion and corresponding to a hole in the fixed hinge portion It is coupled to one side of the movable hinge portion, the fixed hinge portion, including a second stopper to control the rotation in contact with the height on both sides relative to the central axis of the hole of the fixed hinge portion to generate a different sense of rotation according to the rotation angle of the movable hinge portion Is provided between the cam, the fixed hinge portion and the movable hinge portion having a different stop surface is in contact with the cam profile And a spring assembly and a movable hinge portion at least one of which is coupled to one end of the slider to provide an elastic force to the slider, the other end of which is coupled to the inner side of the movable hinge portion, and the other end of which is formed in the direction of the cam. It relates to a hinge module for a mobile communication terminal, characterized in that it comprises a bushing fixed to the hole of the fixed hinge portion through the bushing hole of the movable hinge portion.

According to an embodiment of the present invention, a thin hinge module can be configured to manufacture a slimmed hinge module for a mobile communication terminal.

Cam, Slider, Spring Assembly, Stopper, Hinge

Description

Hinge module for mobile terminal

 The present invention relates to a swing module of a portable terminal. In particular, a hinge module for a mobile communication terminal, which is automatically swinged when the display unit rotates at a predetermined angle between the main body unit controlling the operation of the terminal and a display unit displaying an operation signal applied from the main body. will be.

The term "mobile communication terminal" means a device that a user can carry and perform wireless communication with the other party. Such mobile terminals are classified into bar-type, flip-type, folder-type slide-type, and swing-type according to their appearance and operation state. Are classified.

Recently, the mobile communication terminal needs to be slimmed to satisfy the portability, and simultaneously requires a wide display unit for convenience of various information transfer.

Accordingly, in order to satisfy two requirements, a swing type terminal has been developed in which a wide display unit is overlapped and fixed on a main body unit and the user rotates the display unit laterally.

In the swing type terminal, the swing operation of the display unit is performed by a hinge module that mediates the main body unit and the display unit.

Prior arts related to such a hinge module for a mobile communication terminal are disclosed in Patent Registration No. 10-0668986, "Hinge Structure for Swing-type Mobile Phones."

This prior art forms a swing structure for a mobile phone of a swing type with a cam member which contacts a profile of a cam supported by an elastic spring inside a base which forms a cam around the rotating shaft and is rotatably coupled. Doing.

This prior art has the advantage of simplifying the structure of the product consisting of a rotating shaft, a cam, an elastic spring and a base, and by using a symmetrical elastic spring to provide a rotational force according to the shape of the cam, semi-automatically rotated, convenient to use There is an advantage.

However, there is a problem that the hinge structure is not slimmed because a separate space that the cam member and the elastic spring are coupled is required in the base.

In order to solve the above problems, the present invention is related to the slimming of the components of the hinge module for a mobile communication terminal, and related to lowering the manufacturing cost by simplifying the configuration of the hinge module for a mobile communication terminal.

In order to solve the above problems, a hinge module for rotating the display unit relative to the main body portion of the mobile communication terminal, the connecting means coupled to the main body portion, and transfers a signal applied from the main body portion to the display unit is disposed A fixed hinge portion including a hole formed in the center thereof, a long hole formed to be spaced apart from the central axis of the hole, and a first stopper coupled to slide the long hole; A movable hinge part coupled to the display part and including a bushing hole formed corresponding to the hole of the fixed hinge part, and a second stopper that contacts the first stopper of the fixed hinge part to control rotation; A cam coupled to one side of the fixed hinge portion, the stop surfaces having different heights formed on both sides of the fixed hinge portion based on a central axis of the hole of the fixed hinge portion to generate a different sense of rotation according to a rotation angle of the movable hinge portion; A slider provided between the fixed hinge part and the movable hinge part to abut the profile of the cam and having a protrusion formed in the cam direction; At least one spring assembly having one end coupled to the slider and the other end coupled to an inner surface of the movable hinge portion to impart an elastic force to the slider; And a bushing fixed to a hole of the fixed hinge part through a bushing hole of the movable hinge part so as to rotate the movable hinge part.

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In addition, the spring assembly is characterized in that the spring fixture is coupled to both ends of the tension spring, the coupling ring is formed.

In addition, the tension spring is characterized in that it is formed of two or more tension springs to increase the tensile force.

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In addition, the first stopper is characterized in that the elastic piece that makes a sound when the sliding on the long hole is coupled.

The hinge module for a mobile communication terminal according to the embodiment of the present invention has the following effects.

First, the hinge module for a mobile terminal can be made thin by a flat cam, a slider, a tension spring, and the like, thereby making a slim hinge module.

Second, the unit cost of the hinge module for a mobile communication terminal can be reduced.

Hereinafter, the present invention will be described in detail with reference to preferred embodiments of the accompanying drawings.

1 is an exploded perspective view of a mobile communication terminal employing a hinge module for a mobile communication terminal according to an embodiment of the present invention, Figure 2 is an exploded view of the hinge module 50 for a mobile communication terminal according to an embodiment of the present invention Perspective view.

1 and 2, the hinge module 50 includes a fixed hinge portion 100 and a fixed hinge portion 100 coupled to a main body portion 10 of the mobile communication terminal. Rotation of the movable hinge part 300 by being coupled to the inner surface of the cam 200 coupled to the inner side, the display 20 of the mobile communication terminal and the movable hinge part 300 coupled to the outside and the movable hinge part 300. It consists of a spring assembly 330 and a slider 340 to control the.

The fixed hinge unit 100 is fixed to the main body unit 10 of the mobile communication terminal, one side of the fixed hinge unit 100 for guiding the movement of the first stopper 130 to be described later Long hole 120 is formed, the first stopper 130 is coupled along the long hole 120 so as to flow.

The inner surface of the fixed hinge portion 100 is coupled to the cam 200, the cam 200 has a hole 240 through the cam 200 and the fixed hinge portion 100 is formed through the center of the hole 240 Stops 210 and 220 are formed on both sides of the axis to be concave in the direction of the center axis of the hole 240.

The stop surfaces 210 and 220 of the cam 200 are formed on the cam diagram corresponding to the rotation angle of 0 ° and the rotation angle of 180 °, and the stop surfaces appearing corresponding to the rotation angle of 0 ° among the first stop surface. And a stop surface appearing corresponding to a rotation angle of 180 ° is referred to as a second static surface 220.

In addition, the surface formed at the highest position on the cam diagram is called the critical surface 230.

In the cam 200, the first static surface 210 has a height higher than that of the second static surface 220 from the central axis of the hole 240, and the second static surface 220 has a hole 240. It is formed lowest from the central axis of).

In addition, between the rotational angle of 0 ° and the rotational angle of 180 ° of the cam 200, the critical surface 230 having the highest height from the central axis of the hole 240 is formed.

At this time, the position of the critical surface 230 may vary depending on the use state, but the side of the cam 200 corresponding to the rotation angle of about 30 ° on the cam diagram to avoid malfunction and give the user a sense of rotation when using the mobile communication terminal It is preferably formed in.

The cam 200 is preferably formed as a flat cam for the slimming of the entire hinge module.

A bushing hole 320 is formed at a position corresponding to the hole 240 in the center of the movable hinge part 300, and the bushing 400 penetrates through the bushing hole 320 and the hole 240 of the cam 200. In combination, the movable hinge part 300 is rotatable about the upper connector hole 320.

The guide groove 310 is formed in the central axis direction of the bushing hole 320 so that the guide protrusion 344 formed on the slider 340 is inserted into the movable hinge part 300 so as to slide therein.

The inner surface of the movable hinge portion 300 is provided with a spring assembly 330 and the second stopper 350, the spring assembly 330 is coupled to the slider 340 to control the rotation of the movable hinge 300. do.

In addition, the second stopper 350 also contacts the first stopper 130 according to the rotation of the movable hinge part 300 to control the rotation of the movable hinge part 300.

The spring of the spring assembly 330 is a tension spring 330a, and is fixed to a spring fixture 330b in which coupling rings are formed at both ends of the tension spring 330a.

Coupling rings formed at one end of the spring fixture 330b are coupled to both ends of the slider 340, the coupling ring formed at the other end is coupled to the inner surface of the movable hinge portion 300.

The spring assembly coupled to both ends of the slider 340 is preferably at least two tension springs (330a) are coupled to the spring fixture (330b) to have the same tensile force and have a thin thickness.

Slider 340 is sliding in contact with the side of the cam 200 is formed with a protrusion 342 in the direction of the center axis of the hole 240 in order to reduce the friction generated during the sliding.

The protrusion 342 of the slider 340 is inserted into the guide groove 310 formed inside the movable hinge part 300 to restrain the movement of the slider 340. Is formed in the direction.

3 to 6 which is an operation diagram when the movable hinge unit 300 of the hinge module 50 for the mobile communication terminal rotates the action of the slider 340 and the cam 200 when the movable hinge unit 300 rotates. Looking through it as follows.

First, the operation of the slider 340, the cam 200, and the spring assembly 330 before the movable hinge 300 starts to rotate is as follows.

The slider 340 is in contact with the first static surface 210 of the cam 200, wherein the tension spring 330a of the spring assembly 330 is coupled to the slider 340 in a tensioned state. Therefore, the slider 340 transmits the restoring force of the tension spring 330a to the cam 200.

Therefore, in order to rotate the movable hinge unit 300 in this state, a torque of a certain magnitude must be given to the display unit 20 coupled to the movable hinge unit 300.

In addition, when the movable hinge 300 is rotated about 30 °, look at the operation of the cam 200, the spring assembly 330 and the slider 340 through the operation of Figure 4 as follows.

In this case, the slider 340 is located at the critical surface 230 of the cam 200, and the tension spring 330a of the spring assembly 330 is maximally tensioned at this position, and the slider 340 is the cam 200. ) Will give maximum resilience. Therefore, the force required to rotate up to 30 ° is maximum.

In addition, when the movable hinge portion 300 rotates about 110 °, the operation of the cam 200, the spring assembly 330, and the slider 340 through the operation of FIG. 5 will be described below.

When the movable hinge part 300 rotates beyond 30 °, the tension spring 330a of the spring assembly 330 is restored, and the movable hinge part 300 is caused by the restoring force and the rotational inertia moment of the display unit 20 generated at this time. ) Rotates automatically.

Finally, when the movable hinge portion 300 rotates about 180 °, the operation of the cam 200, the spring assembly 330, and the slider 340 is as follows through the operation of FIG. 6.

The protrusion 342 of the slider 340 is positioned on the second static surface 220 of the cam, and the tensile force of the tension spring 330a of the spring assembly 330 is minimum, and the first stopper 130 described later ) And rotation of the second stopper 350 is stopped.

Figure 7 is an exploded perspective view of a hinge module for a mobile communication terminal according to another embodiment of the present invention, the spring fastener (330b ') is formed on the lower end of the coupling ring, the screw springs on both ends of the coil spring (330a') Combination spring assembly 330 is used and the spring assembly 330 of this structure can constitute the spring assembly 330 without a separate process of coupling the spring fixture 330b 'to the coil spring (330a') This has the advantage of reducing manufacturing costs.

Looking at the change in the force acting on the movable hinge portion 300 according to the rotation angle of the movable hinge portion 300 is the same as the graph of FIG.

In FIG. 8, when the movable hinge part 300 is at 0 °, it indicates that the rotation has not started yet. The force required for the rotation until the rotation starts and reaches an angle of 30 ° is increased as shown in the graph of FIG. 8. do. Subsequently, when the rotation angle of the movable hinge portion 300 exceeds 30 °, the force required for rotation shows a tendency to decrease.

In addition, the first stopper 130 and the second stopper 350 functions as follows when the movable hinge part 300 is rotated about 180 °.

When the movable hinge part 300 rotates about 180 °, the first stopper 130 and the second stopper 350 meet, and the first stopper 130 coupled to the long hole 120 slides along the long hole 120. To lose. At this time, a portion of the kinetic energy of the movable hinge 300 is converted into the energy of the movement of the first stopper 130, and thus the rotational acceleration of the movable hinge 300 is reduced.

In addition, when the second stopper 350 pushes the first stopper 130 to contact the first stopper 130 at the end of the long hole 120, the second stopper 350 is formed to contact the first stopper 130. Hinge 300 is to stop the rotation.

The reduction of the rotational speed of the movable hinge 300 by the movement of the first stopper 130 reduces the sudden change in the rotational acceleration of the movable hinge 300 to protect the display unit 20 of the mobile communication terminal. do.

In addition, when the first stopper 130 is coupled to the first stopper 130 and the first stopper 130 moves in the long hole, the elastic piece makes a sound and informs the user that the object has been rotated by 180 °.

9 is a state diagram of a mobile communication terminal employing a hinge module 50 for a mobile communication terminal of the present invention, the mobile communication terminal rotates the display unit 20 to the left and right from the main body 10 and the hinge module The rotation of the cam 200, the spring assembly 330, and the slider 340 is generated within the 50.

1 is an exploded perspective view of a mobile communication terminal employing a hinge module for a mobile communication terminal according to an embodiment of the present invention.

2 is an exploded perspective view of a hinge module for a mobile communication terminal according to an embodiment of the present invention.

3 is an operation diagram when the movable hinge portion of the hinge module for a mobile communication terminal shown in FIG.

4 is an operation diagram when the movable hinge portion of the hinge module for a mobile communication terminal shown in FIG.

5 is an operation diagram when the movable hinge portion 110 ° of the hinge module for a mobile communication terminal shown in FIG.

6 is an operation diagram when the movable hinge portion of the hinge module for a mobile communication terminal shown in FIG.

7 is an exploded perspective view of a hinge module for a mobile communication terminal according to another embodiment of the present invention.

8 is a graph of a change in force acting on the movable hinge portion according to the change angle of the movable hinge portion 300 of the hinge module for a mobile communication terminal shown in FIG.

9 is a state diagram of a mobile communication terminal employing the hinge module for a mobile communication terminal shown in FIG.

<Description of main parts of drawing>

10; Main body

20; Display part

50; Hinge module

100; Fixed hinge part

120; Longevity

130; First stopper

200; cam

300; Movable hinge

310; Home

320; Bushing hole

330; Spring assembly

340; Slider

350; 2nd stopper

400; bushing

Claims (8)

In the hinge module for allowing the display unit to rotate relative to the main body of the mobile communication terminal, Is coupled to the main body, the through-hole formed in the center so that the connection means for transmitting a signal applied from the main body portion to the display unit, the long hole formed to be spaced apart from the central axis of the hole and coupled to slide the long hole A fixed hinge part including a first stopper; A movable hinge part coupled to the display part and including a bushing hole formed corresponding to the hole of the fixed hinge part, and a second stopper that contacts the first stopper of the fixed hinge part to control rotation; A cam coupled to one side of the fixed hinge portion, the stop surfaces having different heights formed on both sides of the fixed hinge portion based on a central axis of the hole of the fixed hinge portion to generate a different sense of rotation according to a rotation angle of the movable hinge portion; A slider provided between the fixed hinge part and the movable hinge part to abut the profile of the cam and having a protrusion formed in the cam direction; At least one spring assembly having one end coupled to the slider and the other end coupled to an inner surface of the movable hinge portion to impart an elastic force to the slider; And And a bushing fixed to a hole of the fixed hinge part through a bushing hole of the movable hinge part so as to enable the movable hinge part to be rotatable. delete delete delete The method of claim 1, The spring assembly is Coil spring having a tensile force; And Hinge module for a mobile communication terminal, characterized in that made of a spring fixture is formed with a screw thread on the lower portion of the coupling ring to be screwed to both ends of the coil spring. The method of claim 1, The spring assembly is Tension springs having tension; And The hinge module for a mobile communication terminal, characterized in that made of a spring fixture which one or more tension springs are coupled to a spring fixing plate is formed with a coupling ring. delete The method of claim 1, The first stopper is a hinge module for a mobile communication terminal, characterized in that coupled to the elastic piece that makes a sound when slipping on the long hole.

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