KR100706501B1 - Notebook computer - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a notebook computer, comprising: a base unit provided with an input means, a display unit for displaying a processing result of data input by the input means of the base unit, and the display unit being rotated on and off at one side of the base unit. There is provided a notebook computer including a cam hinge provided at both ends of the display unit and a hinge damper provided at both ends of the base unit to receive the cam hinge so as to dissipate the torque generated from the cam hinge.

Accordingly, when the unfolded display unit is covered by the base unit, the torque generated at the cam hinge is dissipated from the hinge damper axially coupled with the cam hinge, which slows down the display unit and thus the display unit is smoothly covered by the base unit. It is possible to prevent damage to the display unit due to.

Laptop, Cam Hinge, Torque, Hinge Damper, Shock Absorber, Hydraulic Damper

Description

Notebook computer {Notebook computer}

1 is a perspective view showing the appearance of a conventional notebook computer.

2 is an exploded perspective view showing the structure of a conventional notebook computer.

3 is a perspective view showing a hinge unit of a notebook computer according to the prior art.

4 is a perspective view showing the structure of a notebook computer according to the present invention.

5 is an exploded perspective view showing a hinge damper of a notebook computer according to the present invention.

6A is a cross-sectional view of the hinge damper according to the present invention.

Figure 6b is a cross-sectional view showing another embodiment of the hinge damper according to the present invention.

7 is a plan view of an unfolded notebook computer to which the hinge damper of the present invention is applied.

8 is a use state diagram showing the display unit opening and closing operation of the notebook computer by the hinge damper of the present invention.

Explanation of symbols on main parts of drawing

100: notebook computer 110: base unit

120: display unit 200: cam hinge

210: rotating piece 220: shaft cam

230: hinge housing 300: hinge damper

310: damper piston 312: piston cam

320: spring 330: damper housing

360 oil

The present invention relates to a notebook computer, and more particularly, to compensate for the degree of torque applied to the hinge unit for rotatably connecting the display unit and the base unit to minimize the impact generated when the display unit is covered with the base unit To a laptop computer.

The notebook computer is a small, light, and rechargeable battery operated by a secondary battery, and is a computer that can be used regardless of a location. As shown in FIG. The display unit 20 which displays the processing result of the data input by the input means to a user is foldably couple | bonded.

A conventional notebook computer as described above will be described with reference to FIG.

2 is an exploded perspective view showing the structure of a conventional notebook computer. Referring to the drawings, the display unit 20 includes a liquid crystal display device 21 and a back cover 22 supporting the liquid crystal display device 21 and a front cover 23 coupled to the back cover 22. It consists of.

The base unit 10 is touched with a storage device such as upper and lower cases 11 and 12, a main board 13, a CPU 14, various chipsets 15, and a hard disk 16, and a keyboard 17. Data input means consisting of a pad 18, a secondary battery 19 for supplying power, LAN card (not shown) for supporting wired and wireless data communication, and the like.

The CPU 14 and various chipsets 15 are attached to the main board 13, and the memory device, the keyboard 17, the touch pad 18, and the LAN card are connected to the main board 13 through a data line. In the manner supported by the upper and lower cases (11, 12).

The notebook computer having such a structure folds the display unit 20 and the base unit 10 to be held by being held by the latch 30, and when used, releases the latch 30 and releases the latch 30. The display unit 20 is unfolded at an appropriate angle so as to conform to. When the display unit 20 is opened, the user performs a predetermined operation through the data input means of the base unit 10 so that the result of data processing is displayed on the liquid crystal display device 21 of the display unit 20. do.

Accordingly, the display unit 20 is connected to the base unit 10 by the hinge unit 40 so that the display unit 20 can be foldably rotated and can be stably maintained at the angle unfolded at the angle selected by the user.

3 is a perspective view showing a hinge unit of a notebook computer according to the prior art. Referring to the drawings, the hinge unit 40 includes a cam shaft 41, a fixing piece 42 fixed to a base unit to which the cam shaft 41 is rotatably supported, and integrally with the cam shaft. Consisting of a rotating piece 43 is fixed to the display unit 20, the cam shaft 41 is connected to the friction rotating structure to exert a friction force of a predetermined strength or more at the inner diameter of the fixing piece 42.

Therefore, when the display unit 20 maintains the unfolded state around the hinge unit 40 in the base unit 10 at an angle selected by the user, and covers the display unit 20 in the base unit 10. When the display unit 20 reaches a certain angle, the display unit 20 falls freely by its own weight to cover the base unit 10.

However, the conventional hinge unit 40 as described above interferes with the hinge unit 40 when the display unit 20 is opened or closed, so that when the hinge unit 40 is deteriorated, the display unit 20 The user does not maintain the selected angle and rotates arbitrarily.

That is, as the display unit 20 is unfolded or covered by the base unit 10, the cam shaft 41 rotated at the inner diameter of the fixing piece 42 of the hinge unit 40 wears. The worn camshaft 41 is reduced in friction with the inner diameter of the fixing piece 42, so that the display unit 20 cannot be maintained in an unfolded state and is arbitrarily rotated by the weight of the display unit 20 to the base unit 10. This may cause inconvenience to the user or the display unit 20 may collide with the base unit 10 to damage the expensive liquid crystal display device 21.

The present invention is to solve the above problems, the stable maintenance of the display unit in the unfolded state, or when covering the display unit with the base unit, the display unit free fall by its own weight to collide with the base unit It is an object of the present invention to provide a notebook computer capable of generating an appropriate torque in the hinge unit so as to prevent it.

According to the technical idea of the present invention for achieving the above object, there is provided a base unit having an input means, a display unit for displaying the processing result of data input by the input means of the base unit, and the display unit is Cam hinges provided at both ends of the display unit so as to rotate and open at one side of the base unit, and hinge dampers provided at both ends of the base unit to receive the cam hinges to dissipate the torque generated from the cam hinges. Is achieved by a laptop computer.

Here, the cam hinge, one end is fixed to the display unit, the other end of the cam cam is provided with a cam and the other end of the shaft is inserted and rotatably supported, the hinge housing is fixed to the base unit further includes It is preferable.

In addition, the hinge damper may further include a damper piston having one end engaged with the cam hinge, a spring provided on the other side of the damper piston, and a damper housing which is installed to be axially coupled to the damper piston and is fixed to the base unit. It is desirable to be.

Here, the hinge damper preferably further includes a protrusion provided at the outer diameter of the damper piston and a helical groove provided at the inner diameter of the damper housing to guide the protrusion.

On the other hand, it is more preferred that the oil is filled in the interior of the damper housing fixed to the base unit so as to resist the axial linear movement of the damper piston.

Here, it is also preferable that the oil passage is further provided in the damper piston so that the oil filled in the damper housing is exchanged around the damper piston.

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

4 is a perspective view showing the structure of a notebook computer according to the present invention. Referring to the drawings, the notebook computer 100 includes a base unit 110 including upper and lower cases 111 and 112 provided with input means such as a keyboard 117 and a touch pad 118, and the input unit. The display unit 120 including the front cover 123 and the back cover 122 supporting the liquid crystal display 121 for displaying the processing result of the data input by the user to the base unit 110 can be folded. The cam hinge 200 is provided at the base unit 110 and the display unit 120.

In addition, as the display unit 120 is covered with the base unit 110, the latch 130 is provided in the display unit 120 to force the covered state so that the display unit 120 is provided with the base unit 110. Bound and will remain covered.

The cam hinge 200 has one side fixed to the display unit 120, while the other side of the cam hinge 200 is rotatably inserted into the hinge housing 230 which is fixed to the base unit 110. Bearing). That is, the cam hinge 200 has a rotating piece 210 fixed to the display unit 110 by an additional fastening means (fastening bolt, etc.) at one end thereof, and integrally with the rotating piece 210. A shaft cam 220 having a cam shape at the other end is provided. In addition, a hinge damper 300 engaged with the shaft cam 220 is fixed to the base unit 110. The structure of the cam hinge 200 and the hinge damper 300 as described above will be described with reference to FIG. 5.

5 is an exploded perspective view showing a hinge damper of a notebook computer according to the present invention. Referring to the drawings, the cam hinge 200 and the hinge damper 300 are provided at both ends of the display unit 120 and the base unit 110, the cam hinge 200 is a hinge having an inner diameter The shaft cam 220 is inserted into the housing 230 so as to be rotatable, and the rotating piece 210 of the shaft cam 220 is fixed to the display unit 120, and a fixing piece provided in the hinge housing 230. 240 is fixed to the base unit 110.

In addition, a damper piston is installed in the hinge damper 300 in a damper housing 330 having a fixing piece 334 fixed to the base unit 110. The damper piston 310 is installed so as to linearly move in the axial direction at the inner diameter of the damper housing 330, and a piston cam 312 which is engaged with the shaft cam 220 to one side of the damper piston 310 to cam. ) Is provided.

A position where the shaft cam 220 and the piston cam 312 is engaged is located at the inner diameter of the hinge housing 230, the spring 320 is provided on the other side of the damper piston 310, the damper housing ( The spring 320 is supported by a cover 340 which is hermetically coupled at the other end of 330. Here, viscous oil is filled at the other end of the damper housing 330 provided with the spring 320 to make the axial movement of the damper piston 310 smoother.

In addition, the inner diameter of the damper housing 330 in which the damper piston 310 is installed is provided with a helical groove 332 having a spiral groove formed along an axial direction, and is inserted into the helical groove 332 to be inserted into the helical groove 332. A projection 314 moving along the () is provided at the outer diameter of the damper piston 310.

The operation of the notebook computer of the present invention having the above-described cam hinge and hinge damper will be described based on FIG. 6A.

6A is a cross-sectional view of the hinge damper according to the present invention. Referring to the drawings, the cam hinge 200 is rotatably connected to the base unit 110 and the display unit 120. When the rotating piece 210 of the cam hinge 200 fixed to the display unit 120 rotates, the shaft cam 220 integrally formed with the rotating piece 210 rotates.

The shaft cam 220 is rotated at the inner diameter of the hinge housing 230 fixed to the base unit 110, the hinge damper 300 is engaged with the shaft cam 220 in accordance with the rotation of the shaft cam 220 The damper piston 310 is moved in the axial direction from the inner diameter of the damper housing 330.

At this time, the damper piston 310 is rotated along the inner circumferential surface of the damper housing 330 according to the cam curve of the shaft cam 220 and moved in the axial direction. At this time, the damper piston 310 is a projection 341 provided in the outer diameter is guided by the helical groove 332 provided in the inner diameter of the damper housing 330, while the spring provided on the other side of the damper piston 310 Compress 320.

Accordingly, the damper piston 310 and the spring 320 of the hinge damper 300 buffer the torque of the cam hinge 200 generated as the display unit 120 covers the base unit 110 to cam the hinge. By dissipating the torque of 200, the display unit 120 smoothly free-falls due to its own weight.

That is, the free fall due to the weight of the display unit 120 is primarily buffered by the compression of the spring 320, and the protrusion 314 and the damper housing 330 provided in the outer diameter of the cylinder 310 secondarily. By the frictional force of the helical groove 332 provided in the inner diameter of the) to be buffered once again.

Here, the piston cam 312 is provided on one side of the damper piston 310 of the shaft cam 220 and the hinge damper 300 of the cam hinge 200 in the free fall section by the weight of the display unit 120 is It can be set by the interlocking cam curve.

Meanwhile, as another embodiment of the hinge damper, oil may be filled in the damper housing 330 of the hinge damper 300. This will be described based on FIG. 6B.

Figure 6b is a cross-sectional view showing another embodiment of the hinge damper according to the present invention. Referring to the drawings, the damper housing 330 of the hinge damper 300 is filled with oil 360 on one side of the damper piston 350 is fixed to the base unit 110. That is, a damper piston 350 which is engaged with the shaft cam 220 of the cam hinge 200 and moves in the axial direction is provided in the inner diameter of the damper housing 330 integrally with the piston cam 312 and is installed therein. The oil 360 is filled in the inner chamber of the damper housing 330 partitioned by the damper piston 350.

In addition, an oil passage 352 is provided in the cylinder 350 such that the oil 360 may flow in the damper housing 330 as the cylinder 350 moves.

Looking at the operation of the notebook computer 100 of the present invention having a damper housing 330 filled with the oil 360 as described above, the rotating piece 210 of the cam hinge 200 fixed to the display unit 120 ) Rotates the shaft cam 220 integrally formed with the rotating piece 210.

As the shaft cam 220 rotates, the piston cam 312 engaged with the shaft cam 220 moves the damper piston 350 axially from the inner diameter of the damper housing 330. At this time, the oil 360 filled in the damper housing 330 flows from one chamber to the other chamber through the oil passage 352 of the damper piston 350. That is, as the damper piston 350 moves axially from the inner diameter of the damper housing 330, the oil 360 of one side chamber pressurized through the oil channel 352 of the damper piston 350 through the damper housing 330. It is supplied to the other inner chamber of the

Accordingly, the hinge damper 300 filled with the oil 360 may apply the torque of the cam hinge 200 generated as the display unit 120 covers the base unit 110 to the hinge damper 300. Since it is dissipated by the flow of the filled oil 360, the display unit 120 smoothly free-falls due to its own weight.

7 is a plan view of an unfolded notebook computer to which the hinge damper of the present invention is applied. Referring to the drawings, the hinge damper 300 which the display unit 120 adjusts the free fall speed by its own weight around the cam hinge 200 provided at one end of the base unit 110, the base The cam 110 is axially coupled to the unit 110 and the display unit 120 so as to rotate. To this end, the rotating piece 210 of the cam hinge 200 is fixed to the display unit 120 and the hinge housing 230 supporting the shaft cam 220 integrally formed with the rotating piece 210 is fixed. It is fixed to the base unit 110 by the piece 240.

In addition, the hinge damper 300 which buffers the torque acting on the cam hinge 200 to reduce the descending speed of the display unit 120 is axially coupled to the cam hinge 200 and fixed to the base unit 110. The bar is fixed to the base unit 110 by a separate fastening means (fastening bolt, etc.) to the fixing piece 334 of the hinge damper 300.

That is, the shaft cam 220 of the cam hinge 200 and the piston cam 312 of the hinge damper 300 are located in the inner diameter of the hinge housing 230, the shaft cam 220 of the cam hinge 200 And the piston cam 312 of the hinge damper 300 is engaged with the damper piston 310, 350 integrally with the piston cam 312 in accordance with the rotation of the shaft cam 220, the shaft inner diameter of the damper housing 330 Will be moved in the direction.

8 is a use state diagram showing the display unit opening and closing operation of the notebook computer by the hinge damper of the present invention. Referring to the drawings, as the unfolded display unit 120 covers the base unit 110, the display unit 120 is rotated about the cam hinge 200, and the display unit 120 is rotated. When the rotating piece 210 fixed to the rotating, the shaft cam 220 integrally with the rotating piece 210 is rotated at the inner diameter of the hinge housing 230.

As the shaft cam 220 is rotated, the piston cam 312 is rotated and the damper pistons 310 and 350 are moved in the axial direction, thereby compressing the spring 320 or by the flow of the oil 360. The lowering speed of the display unit 120 is slowed down so that the display unit 120 gently covers the base unit 110.

At this time, the free fall section of the display unit 120 freely falling by its own weight is set according to the cam shape in which the shaft cam 220 and the piston cam 312 are engaged.

That is, before the shaft cam 220 of the cam hinge 200 contacts the piston cam 312 of the hinge damper 300 for the first time to receive the interference, the display unit 120 is centered on the cam hinge 200. The falling section is rotated to set the shaft cam, and as the shaft cam rotates, the shaft cam 220 and the piston cam 312 are engaged so that the hinge damper 300 dissipates the torque generated at the cam hinge 200. A cam interference section for slowing down the falling speed of the display unit 120 is set.

Accordingly, the cams of the shaft cam 220 and the piston cam 312 are dropped by the weight of the display unit 120 in the falling section, the cam cam shaft and the piston cam 312 is engaged with the cam The display unit 120 is covered with the latch unit 130 while the falling speed of the display unit 120 is reduced in the interference section to prevent the display unit 120 from colliding with the base unit 110. It is maintained by the binding state.

In the notebook computer according to the present invention, the torque generated at the cam hinge when the spreading display unit is covered on the base unit is dissipated from the hinge damper axially coupled with the cam hinge to slow down the descending speed of the display unit, thereby smoothly displaying the base. Since the unit is covered, the damage of the display unit due to the collision can be prevented in advance.

On the other hand, the present invention is not limited only to the above-described embodiment, but can be modified and modified within the scope not departing from the gist of the present invention, the technical idea that such modifications and variations are also included in the claims Should be seen.

Claims (8)

A base unit provided with an input means; A display unit for displaying a processing result of data input by the input means of the base unit; Cam hinges provided at both ends of the display unit such that the display unit is rotated and opened at one side of the base unit; And A hinge damper provided at both ends of the base unit to dissipate the torque generated by the cam hinge to receive the cam hinge; The hinge damper, A damper piston having one end engaged with the cam hinge; A spring provided on the other side of the damper piston; And And a damper housing internally fixed to the damper piston and the spring and fixed to the base unit. The damper piston is a notebook computer, characterized in that for the axial linear movement to compress the spring in the damper housing in accordance with the rotational direction of the cam hinge. The method of claim 1, wherein the cam hinge, A shaft cam having one end fixed to the display unit and a cam provided at the other end thereof; And And a hinge housing fixed to the base unit to support the other end of the shaft so as to be rotatably inserted therein. delete The method of claim 1, A protrusion provided with an outer diameter of the damper piston; And And a helical groove provided in the inner diameter of the damper housing to guide the protrusion. The method of claim 1, And the damper housing is filled with oil. delete The method of claim 5, And an oil flow path provided in the damper piston so that the oil filled in the damper housing is interchanged with respect to the damper piston. delete

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