KR101916326B1 - Method for manufacturing signal input device - Google Patents

Abstract

The present invention relates to a signal input device. More specifically, the present invention relates to a method for manufacturing a signal input device with a pushing method having a complex form on the existing structure which can significantly improve the productivity and can secure reliability by automating a process which should be manually performed. The method comprises the steps of: fixing a flexible printed circuit board to surround and fix an inner wall of a housing; mounting an elastic member on an inner protrusion of the housing to which the flexible printed circuit board is fixed; mounting a push button and a press button inserting a conductor to correspond to the flexible printed circuit board on an outer downward side surface; and coupling a first coupling unit formed to protrude or to be dent on an outer circumferential surface of the housing on which the press button and the push button are mounted to a second coupling unit formed between inner circumferential surfaces of a cover.

Description

[0001] METHOD FOR MANUFACTURING SIGNAL INPUT DEVICE [0002]

The present invention relates to a method of manufacturing a signal input device. More particularly, the present invention relates to a signal input device for pushing a push type signal input device having a complicated shape in the conventional structure, by automating a process which is inevitably carried out by hand, thereby dramatically improving the productivity, And a method of manufacturing the signal input device.

Various electronic products such as smart phones, tablet PCs, notebooks, and IPTV have various types of input devices for inputting signals. Such a signal input device is generally a mouse or a remote controller, and these are interlocked with a plurality of buttons for controlling the respective functions of the product to input signals.

The buttons can be implemented by a switch method or a button pressing method, and one button implements one function. However, a shortcut function button or a plurality of buttons is required to provide user convenience with respect to electronic products having various functions. Therefore, the signal input device such as a remote control becomes larger in size and has a complicated shape. When the structure of the signal input device becomes complicated, the user convenience is degraded again.

As a solution to this problem, a composite button in which one button can implement two or more functions is being developed. For example, by using the arrow buttons to select a desired function, the number of function buttons can be reduced. However, there is still a need to provide an arrow button. have.

Particularly, since these complex buttons have to generate a large number of input signals with a single button, the structure is complicated, and the batch process is difficult due to the system process, so that the process must be manually performed delicately.

Therefore, a method for manufacturing a signal input device capable of improving the productivity by simplifying and rapidly processing the process so as to minimize or replace the process to be handled in providing a signal input device capable of inputting a plurality of signals Development is needed.

Korean Patent Publication No. 10-2015-0031546 Korean Patent No. 10-1032995 Korean Patent No. 10-1260998

SUMMARY OF THE INVENTION It is an object of the present invention to provide a method of manufacturing a signal input device, which can improve productivity by replacing a conventional manual process with an automated process.

It is another object of the present invention to provide a method for manufacturing a signal input device that can secure a reliability and stability of quality as well as mass production by manufacturing a signal input device by a simple process.

One aspect of the present invention provides a method of manufacturing a semiconductor device, comprising: a housing having an inner space open at an upper side; A push button seated in the inner space; A flexible printed circuit board surrounding at least one of the inner wall of the inner space and the outer wall of the push button and having at least two terminal switches; A conductor surrounding one of the inner wall of the inner space and the outer wall of the push button and spaced apart from the flexible printed circuit board to contact the terminal switch by the push button; A pushbutton having an upper end penetrating upwardly of the push button and a lower end seated on an upper portion of the dome key located on a bottom surface of the housing; And an elastic member inserted between the housing and the push button and returning the push button to an original position so that the terminal switch and the conductor are spaced apart when the push button is moved ,

Fixing the flexible printed circuit board to surround the inner wall of the housing; Mounting the elastic member on the inner protrusion of the housing to which the flexible printed circuit board is fixed; Mounting the push button and the pushbutton in which the conductor is inserted to correspond to the flexible printed circuit board on the outer downward side and the push button on a housing mounted with the elastic member; And engaging a first engaging portion protruding or recessed from an outer circumferential surface of the housing on which the push button and the push button are mounted, with a second engaging portion formed between the inner circumferential surfaces of the cover,

The step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include inserting a cylindrical jig having the flexible printed circuit board into the inner space of the housing and then rotating the flexible printed circuit board So that the signal input device is brought into close contact with the inner wall.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing includes a jig having a plurality of jigs, And an insert mold portion having an inner mold to which a plurality of housings are mounted.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the insert die may include a housing formed by injecting a resin melt into each of the molds and then heat-treating the melt.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include the step of blowing compressed air into the inner space of the housing .

In the method of manufacturing a signal input device according to an embodiment of the present invention, the jig may be formed with a release coating layer capable of attaching a flexible printed circuit board.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the jig may further include a step of tapping the jig using the rubber bar while the jig is coupled to the housing in the insert mold part.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include: inserting a cylindrical jig having the flexible printed circuit board on the inner side The flexible printed circuit board is closely attached to the inner wall of the housing by rotating the jig after moving the rotary shaft of the rotary drive unit interlocked with the jig a certain distance to the inner wall of the housing.

In the method of manufacturing a signal input device according to an embodiment of the present invention, the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include an elastic part between the jig and the flexible printed circuit board, The flexible printed circuit board is effectively brought into close contact with the inner wall of the housing due to the elastic force of the elastic portion in the process of bringing the cylindrical jig with the printed circuit board into close contact with the inner wall of the housing.

According to another aspect of the present invention, A push button seated in the inner space; A flexible printed circuit board surrounding at least one of the inner wall of the inner space and the outer wall of the push button and having at least two terminal switches; A conductor surrounding one of the inner wall of the inner space and the outer wall of the push button and spaced apart from the flexible printed circuit board to contact the terminal switch by the push button; A pushbutton having an upper end penetrating upwardly of the push button and a lower end seated on an upper portion of the dome key located on a bottom surface of the housing; And an elastic member inserted between the housing and the push button and returning the push button to an original position so that the terminal switch and the conductor are separated from each other when the push button is moved, The conductor acts as an input signal to move the position of the mouse by being connected to the terminal switch. When the push button is pressed in the lateral direction while the push button is pressed, the push button is connected to the dome key Wherein the conductor acts as a right switch input signal of a mouse, a left switch input signal of a mouse, a wheel rise input signal of a mouse, or a wheel fall input signal of a mouse in connection with the terminal switch do.

The manufacturing method of the signal input device according to the present invention can improve the productivity by replacing the process which has been performed by the manual operation with the automation process and simplify the process to secure the durability and stability of the product and improve the reliability of the quality .

1 is a perspective view of a signal input device according to an embodiment of the present invention.
2 is an exploded perspective view of a signal input device according to an embodiment of the present invention.
3 is a cross-sectional view of a signal input device according to an embodiment of the present invention.
4 is an exploded view of a flexible printed circuit board according to the present invention.
5 shows a flowchart of the signal input method of the present invention.
6 is a flowchart showing an embodiment of a signal input device according to the present invention.
7 illustrates an embodiment of a jig to which a flexible printed circuit board is attached according to an embodiment of the present invention.
8 is a view illustrating a process of fixing the inner wall of a housing by using a jig having a flexible printed circuit board attached thereto according to an embodiment of the present invention.
9 is a front view of a jig with an elastic part according to an embodiment of the present invention.
FIG. 10 is a plan view of a jig having elastic portions according to an embodiment of the present invention.
11 schematically shows a jig and an insert mold according to an embodiment of the present invention.

Hereinafter, a method for manufacturing a signal input device of the present invention will be described in detail with reference to the accompanying drawings. The invention can be better understood by the following examples. The following examples are for the purpose of illustrating the present invention and are not intended to limit the scope of protection defined by the appended claims. The technical terms and scientific terms used herein have the meanings as commonly understood by those of ordinary skill in the art to which the present invention belongs, unless otherwise defined.

The inventor of the present invention has developed a signal input device in which input signals generated by application of operating force in the lateral direction are variously input signals in accordance with the direction of operation force. However, the signal input device has a complicated internal structure Therefore, in the manufacturing process, it is necessary to manually mount a plurality of components including a flexible printed circuit board in the inner space of the housing.

Therefore, as a result of deepening the research on the manufacturing process of the signal input device so that the process can be performed more efficiently while securing the quality reliability, as a result of fixing the flexible printed circuit board surrounding the inner wall of the housing, The process can be simplified by minimizing the manual work, and the process can be carried out quickly and easily, so that the productivity can be dramatically increased. Thereby completing the present invention.

One aspect of the signal input device according to the present invention is as shown in FIGS. FIG. 1 is a perspective view of a signal input device according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of a signal input device according to an embodiment of the present invention. Sectional view of the device.

The signal input device according to the present invention can selectively generate various input signals with a single button. The signal input device includes a housing 100 having an inner space opened on the upper side; A push button 200 seated in the inner space; A flexible printed circuit board (300) surrounding at least one of the inner wall of the inner space and the outer wall of the push button and having at least two terminal switches (310); A conductor (400) surrounding one of the inner wall of the inner space and the outer wall of the push button and spaced apart from the flexible printed circuit board to contact the terminal switch by the push button; A push button 500 whose upper end penetrates the push button upward and the lower end thereof is seated on an upper portion of the dome key 320 located on the bottom surface of the housing; And an elastic member inserted between the housing and the push button and returning the push button to an original position so that the terminal switch and the conductor are separated when the push button is moved.

The push button 200 may move not only in the vertical direction but also in the lateral direction of the front, rear, left, and right sides. When the user pushes the push button 200 in the lateral direction, Is contacted with a terminal switch 310 located in a direction in which the push button 200 is moved to connect the terminal switch 310 and an input signal assigned to the connected terminal switch 310 is generated .

This eliminates the need for a pressure sensor for sensing pressure in the lateral direction and thus has a cost saving effect. Particularly, it has a characteristic of generating various input signals according to the direction of the pressing force applied in the lateral direction without a separate pressing sensor. At this time, the terminal switch 310 is composed of a cathode terminal and a cathode terminal arranged horizontally so as to face each other so as to face each other, and the push button 200 is pushed to move to the outer side of the push button 200 When the terminal switch 310 is connected to both the positive terminal and the negative terminal at this time, the risk of a short circuit is reduced, and the potential of the positive terminal and the negative terminal Ensure that the area is wide enough to accurately input the signal.

When the push button 200 is pushed in one direction and the pressing force applied to the push button 200 is released after the conductor 400 connects the terminal switch 310, And an elastic member 600 for returning the position of the push button 200 so that the conductor 310 and the conductor 400 are separated from each other. Due to the elastic force of the elastic member 600, the push button 200 returns to its original position, and the signal input accuracy can be improved. The elastic member 600 may be inserted between the inner wall of the housing 100 and the outer wall of the push button 200. That is, the push button 200 has a downward side wall 222 extending downward from the outer end, and the elastic member 600 is inserted between the inner wall of the housing 100 and the outer side wall of the downward side wall 222 . The housing 100 is formed on the bottom surface with a fixing wall 110 extending upward to face the inner side surface of the downward sidewall 222. The elastic member 600 includes a downward side wall 222 and a fixing wall 110, But may be inserted between the housing 100 and the push button 200, as shown in FIG. At this time, the elastic member 600 is set to a height so as not to overlap with the protrusion 410 formed on the terminal switch 310 and the conductor 400 formed on the flexible printed circuit board 300, And the protruding end (410). This has the effect of simplifying the structure of the housing 100 and effectively preventing the inflow of foreign matter into the dome key 320. The elastic member 600 may be any material having elasticity, and may be an elastic material selected from silicon and carbon sponge, but is not limited thereto.

A protrusion is formed on one side of the push button 200 and the housing 100 and an insertion groove into which the protrusion can be inserted is formed on the other side of the push button 200 and the housing 100, It is also possible to prevent rotation of the motor 200. When the protrusion is inserted into the insertion groove in a fitting manner, the push button 200 can not be moved laterally in a state where the push button 200 is seated on the housing 100. Therefore, the insertion groove is preferably formed larger than the protrusion. This makes it possible to carry out the process quickly and accurately with ease in the manufacturing process.

The push button 200 includes a cover 700 coupled to cover the upper side of the housing 100 so as not to easily escape upward when the push button 200 is seated in the housing 100. The push button 200 includes an upper portion 210 protruding upward through the cover 700 and a lower portion 220 coupled to the lower portion of the upper portion 210 and positioned in the inner space of the housing 100. When the push button 200 is divided into the upper end portion 210 and the lower end portion 220, the conductor 400 is provided on the outer surface of the lower end portion 220 corresponding to the inner wall of the inner space. At this time, a fastening protrusion 120 is formed on an outer wall of the housing 100 so that the cover 700 can be easily detached from the housing 100 without a separate fastening element, and the end of the fastening protrusion 120 is inserted into the cover The engaging groove 720 can be formed. When the separate cover 700 is provided as shown in this embodiment, protrusions are formed on either one of the push button 200 and the cover 700 and the push button 200 and the cover 700, It is possible to prevent the push button 200 from being rotated around the rotational axis in the vertical direction by forming the insertion groove into which the protrusion is inserted in the other side of the push button 200. [

Although only the structure in which the flexible printed circuit board 300 is mounted on the housing 100 and the conductive member 400 is mounted on the push button 200 is shown in the figure, The attachment position of the body 400 may be mutually changed. Although the downward side wall 222 of the push button 200 is located inside the housing 100 in the above figure, the push button 200 is made large enough to cover the entire upper side of the housing 100 So that the downward side wall 222 can be seen to face the outer side wall of the housing 100. When the downward sidewall 222 is positioned on the outer side of the housing 100, the flexible printed circuit board 300 is coupled so as to surround either the outer side wall of the housing 100 or the inner side of the downward side wall 222 , The conductor 400 surrounds the other of the outer side wall of the housing 100 and the inner side of the downward side wall 222. The elastic member 600 may be inserted between the outer side wall of the housing 100 and the down side wall 222 and may be integrally formed with the outer side wall of the housing 100 and the down side wall 222 ) May be formed in a polygonal shape.

When the push button 200 is moved in the lateral direction (upward, downward, left, and right), the conductor 400 is connected to the terminal switch 310 and acts as an input signal for moving the position of the input device. The push button is connected to the dome key 320 while the conductor 400 is connected to the terminal switch 310 To act as a right switch input signal of the input device, a left switch input signal of the input device, a wheel rising input signal of the input device, or a wheel falling input signal of the input device.

For example, when the push button 200 is moved in the lateral direction, the cursor of the mouse can be moved in a desired direction. That is, when the push button 200 is moved to the left, the conductor 400 and the terminal switch 310 are connected to move the cursor of the mouse to the left. On the contrary, when the push button 200 is moved to the right You can move the mouse cursor to the right.

When the push button 500 is pressed and the push button 200 is moved in the lateral direction, functions of the left button, the right button and the wheel of the conventional mouse can be implemented. That is, when the push button 500 is pressed and the push button 200 is moved in the left direction, the push button is connected to the dome key, and the conductor 400 and the terminal switch 310 are connected The function of the left button of the conventional mouse can be implemented. When the push button is pressed and the push button is moved in the right direction, the function of the right button of the existing mouse can be implemented.

If the push button is moved upward or downward while the push button is depressed, the function of the wheel of the conventional mouse can be implemented and the up wheel, the down wheel or the scroll function can be performed.

For example, FIG. 4 is an exploded view of a flexible printed circuit board 300 according to the present invention, in which the flexible printed circuit board 300 includes a center line 301 extending in the horizontal direction, And a first branch line 302 and a second branch line 303 extending from the center line 301 in the direction crossing the longitudinal direction. At this time, the terminal switch 310 is formed on the center line 301, the dome key 320 is connected to the end of the first branch line 302, and the terminal switch 310 is connected to the end of the second branch line. A connector terminal 330 for current and signal transmission is formed.

The terminal switch 310 includes a positive electrode terminal 312 and a negative electrode terminal 314 having a concavo-convex pattern in the vertical direction, and the positive electrode terminal 312 and the negative electrode terminal 314 are formed by vertically- The connection between the positive terminal 312 and the negative terminal 314 can be made more stable when the conductor 410 contacts the terminal switch 310. As a result, The cathode terminal 312 and the cathode terminal 314 are connected to the connector terminal 330 via the cathode line 322 and the cathode line 324. The cathode terminal 312 and the cathode terminal 314 are provided with only one cathode terminal 314 and the dome- And the anode line 322 is connected to the anode terminal of each anode terminal 312 and the anode of the dome key 320 independently and connected to the connector terminal 330. [ The terminal switch 310 and the dome key 320 are mounted inside the housing 100 so as to be operated by the push button 200 and the push button 500. The connector terminal 330 is connected to the housing 100, And is drawn out of the housing 100 through the housing 100 so as to be coupled to external parts.

The positive electrode terminal 312 and the negative electrode terminal 314 must be exposed to the outside for contact with the conductor 410. However, when the positive electrode line 322 and the negative electrode line 324 are electrically connected to each other, The flexible printed circuit board 300 may further include a protective film 340 attached to cover the area where the cathode line 322 and the cathode line 324 are disposed in the center line 301. [

4, when the push button 200 is moved in the lateral direction, the cursor of the mouse can be moved in a desired direction. That is, when the push button 200 is moved in the lateral direction, the conductor 400 and the terminal switch 310 are connected to each other and serve as input signals for moving the position of the mouse.

Also, when the dome key is connected by pressing the push button, the terminal switch is changed into the A group, the B group, the C group, and the D group. At this time, when the terminal switch of the A group is turned on, When the terminal switch of the group B is turned on, it is inputted as a wheel rising signal of the mouse. When the terminal switch of the group C is turned on, the left switch of the mouse is operated. When the terminal switch of the group D is turned on, Down signal.

5 shows a flowchart of the signal input method of the present invention. 5, a signal input method according to the present invention is a method in which a signal is input to the main device by the signal input device described above. When a terminal switch is connected by movement of a push button, Which is transmitted to the data input unit of the main device, and recognizes that the terminal switch signal is generated. Thereafter, the control unit of the main device performs a step of determining whether the dome switch is operated in the ON state. At this time, it is preferable that the controller determines whether or not the dome switch is turned on, without recognizing the time of the terminal switch signal and recognizing the operation of the user after the terminal switch signal is generated.

If the dome switch is confirmed to be on, the control unit immediately changes the terminal switch signal to a wheel up signal, a wheel down signal, a right switch signal or a left switch signal. When the terminal switch of the group A is turned on, the right switch signal of the mouse is inputted. When the terminal switch of the group B is turned on, the wheel rising signal of the mouse is inputted. The left switch signal of the mouse is inputted and the wheel down signal of the mouse is inputted when the terminal switch of the D group is turned on.

At this time, if the domkey switch is checked to be in an off state, the generated terminal switch signal is directly input.

The terminal switch 310 and the dome key 320 are provided in the flexible printed circuit board 300 so that the push button 200 is simply moved in the lateral direction or when the push button 500 is pressed, By moving the button in the lateral direction, the functions performed by the existing mouse can be easily and easily implemented.

The present invention is a method of manufacturing a signal input device as described above,

Fixing the flexible printed circuit board 300 to surround the inner wall of the housing 100,

Mounting the elastic member (600) on the inner protrusion of the housing (100) where the flexible printed circuit board (300) is fixed,

The push button 200 and the push button 500 having the conductor 400 inserted into the outer lower side of the flexible printed circuit board 300 are connected to the housing 100 ) ≪ / RTI >

The step of joining the first engaging part formed by protruding or recessing to the outer peripheral surface of the housing 100 on which the push button 500 and the push button 200 are mounted is combined with the second engaging part formed between the inner peripheral surfaces of the cover 700 .

6, the flexible printed circuit board (FPCB) mounting step S100, the elastic member mounting step S200, the conductive member mounting step S300 And a cover engaging step S400. These processes may be changed in accordance with the environment of the manufacturing process, but it is preferable to sequentially perform the process steps in terms of process efficiency.

In particular, in the method of manufacturing a signal input device according to the present invention, the step of fixing the flexible printed circuit board 300 to surround the inner wall of the housing 100 uses the jig 10, And the flexible printed circuit board 300 is closely contacted with the inner wall of the housing 100 through rotation after inserting the cylindrical jig 10 with the fixing jig 300 toward the inner space of the housing 100 .

Metal, plastic, rubber, silicone rubber, and the like may be used without limitation as the material of the jig.

2, the FPCB mounting step S100 of fixing the flexible printed circuit board 300 to surround the inner wall of the housing 100 may be performed by using a jig 10, So that the circuit board 300 is surrounded by the inner wall of the housing 100.

More specifically, as shown in Fig. 7, a step of attaching a flexible printed circuit board 21, which is an object fixed to the inner wall of the housing, is carried out on the outer circumferential surface and the upper surface of the jig 10. Fig. At this time, the flexible printed circuit board 21 is attached to the side surface of the jig 10 so as to correspond to the inner wall of the housing, and the dome key 22 at one end of the flexible printed circuit board 21 is connected to the housing 100 To the upper surface of the jig 10 so as to be disposed at the center of the bottom surface of the jig 10. The step of attaching the flexible printed circuit board 21 to the jig 10 may be performed by forming a release coating layer 11 on the outer circumferential surface and the upper surface of the jig 10 before the execution. The release coating layer 11 may be a pressure sensitive adhesive that temporarily adheres to the flexible printed circuit board 21 and can easily release the pressure sensitive adhesive. The pressure sensitive adhesive may be used without being particularly limited as long as it can perform the functions described above. The release coating layer 11 may preferably be replaced with a release film that is conventionally used. When a release film is used, it has uniform adhesive properties and is more effective in ensuring reliability in the process.

The jig 10 to which the flexible printed circuit board 21 is attached is connected to the flexible printed circuit board 21 on the inner wall of the housing 100 through a process of joining with the housing 100 as shown in FIG. It can be fixed. After the jig 10 with the cylindrical printed circuit board 21 is inserted into the inner space of the housing 100, the jig 10 interlocked with the rotation driving unit rotates, So that the substrate 21 is brought into close contact with the inner wall of the housing. This is an operation in which the flexible printed circuit board is inserted into the inner wall of the housing by using a clamping means such as a tweezer when the conventional signal input device is manufactured by hand and then the flexible printed circuit board is closely contacted with the inner wall of the housing by the end of the tweezers Can be replaced. In particular, when such a process is manually performed, the adhesive force may be applied differently to cause the flexible printed circuit board to fall off or the flexible printed circuit board to be damaged due to excessive force. However, the present invention can perform a uniform bonding process The adhesive force can be kept constant and the flexible printed circuit board can be prevented from being damaged, thereby ensuring the reliability of the product.

After inserting the cylindrical jig 10 with the flexible printed circuit board 21 toward the inner space of the housing 100, the rotary shaft of the rotary driving unit is moved a certain distance toward the inner wall of the housing, 10, the flexible printed circuit board 21 can be more effectively adhered to the inner wall of the housing. Finally, the flexible printed circuit board is bonded to the inner wall of the housing with uniform adhesive force, The adhesion between the printed circuit board can be improved.

At this time, the rotation of the jig 10 is a process of closely contacting the jig 10 with a constant speed and a rotation angle, and the rotation angle may be set to preferably 45 to 180 degrees, more preferably 90 to 135 degrees. If the above range is satisfied, the flexible printed circuit board can be structurally and stably fixed to the housing.

The step of fixing the flexible printed circuit board 300 so as to surround the inner wall of the housing 100 is a combination of a process of rotating the jig 10 as described above and a process of blowing compressed air into the housing 100 . At this time, an injection unit for injecting compressed air into the jig is provided, and compressed air can be injected into the inner wall of the housing through the inside of the jig at the same time as the jig is rotated. Such a combining process can reduce the energy required from the rotation driving unit, fast and accurately fix the flexible printed circuit board to the inner wall of the housing, and secure the flexible printed circuit board to the inner wall of the housing with uniform adhesive force.

The jig 10 according to the present invention may have an elastic part 12 formed of rubber such as silicone rubber or urethane rubber on the side thereof and a flexible printed circuit board 21 on the outer surface of the elastic part 12. [ (Figs. 9 and 10).

The elastic part 12 is provided between the jig 10 and the flexible printed circuit board 21 so that the cylindrical jig 10 to which the flexible printed circuit board 21 is attached is fixed to the inner wall of the housing 100 The flexible printed circuit board 21 can be more effectively brought into close contact with the inner wall of the housing due to the elastic force of the elastic portion 12 in the process of closely adhering and finally the flexible printed circuit board is bonded to the inner wall of the housing with a uniform adhesive force And the adhesion between the inner wall of the housing and the flexible printed circuit board can be improved.

Further, the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include a jig 30 having a plurality of jigs 31 as shown in Fig. 11, a plurality of housings 30 corresponding to each of the jigs, And a step of engaging the insert mold portion 40 having the inner mold 41 to be mounted. This is because the process of individually inserting only one flexible printed circuit board into the inner wall of one housing by hand is performed by inserting and inserting the corresponding flexible printed circuit boards into the inner walls of a plurality of housings at the same time, It is possible to mass-produce the apparatus, increase the process efficiency, and significantly reduce the production cost.

The jig 30 may further include a step of tapping the jig 31 with the rubber bar in a state where the jig 31 is coupled to the housing 100 in the insert mold part 40. This is more effective in improving the fixing stability of the flexible printed circuit board on the inner wall of the housing.

Although not shown in the figure, the insert mold portion 40 is a part of a mold for manufacturing a housing. The insert mold can be formed by injecting a resin melt constituting a housing into an inner mold and curing the resin through heat treatment. After the molding process, a part of the mold is separated, and the housing 100 formed in the inner mold 41 is seated on the insert mold part 40. This has the effect of allowing continuous processing from the molding process of the housing. Particularly, the manufacturing process of the signal input device according to the present invention has characteristics that can be implemented in an inline process. This has the effect of drastically improving the productivity in comparison with the process which was conventionally performed by hand.

Next, the housing 100 to which the flexible printed circuit board 300 is fixed is subjected to an elastic member mounting step (S200) in which an elastic member is mounted through an inner protrusion formed on a bottom surface of the housing 100, though not shown in the figure. The elastic member 600 has a predetermined elastic force, and is mounted on the inner protrusion using a forceps, and the mounted forceps causes the elastic member to come out of the elastic member. At this time, the elastic member 600 can be inserted between the housing 100 and the push button 200 to return to the initial position while releasing the lateral external force applied to the push button as described above, May be adjusted according to the positions of the conductor 400 and the flexible printed circuit board 300. [

The push button 200 and the push button 500 in which the conductor 400 is inserted into the outer lower side surface of the flexible printed circuit board 300 so as to correspond to the flexible printed circuit board 300, A conductive member mounting step (S300) to be mounted on the housing 100 is performed. At this time, the conductive member includes the push button 200, the push button 500, and the conductor 400. When the push button 200 pushes the conductor 400 to the terminal switch 310 of the flexible printed circuit board And a member for allowing a signal to be input using the dome key on the center bottom surface of the housing 100 by the push button 500. [

The push button 500 has an upper end passing through the push button and a lower end located at an upper portion of the dome key 320 located on the bottom surface of the housing 100. The dome key has one end of the flexible printed circuit board When the push button is pressed, a set signal is inputted in contact with the dome key.

The push button 500 includes a push rod 510 passing through a through hole 212 formed in the push button 200 and a push button 510 connected to a lower end of the push rod 510, (Not shown).

The conductive member mounting step can secure a space in which the conductive member can be structurally mounted smoothly through the combination of the FPCB mounting step and the elastic member mounting step and can be automated, Can be mounted in the inner space of the housing.

The first engaging portion protruding or recessed from the outer circumferential surface of the housing 100 on which the push button 500 and the push button 200 are mounted is engaged with a second engaging portion formed between the inner circumferential surfaces of the cover 700 (S400). In the cover fastening step, the fastening step 120 formed on the outer wall of the housing 100 as a first fastening part without a fastening component where the cover 700 is separately provided is provided so that the end of the fastening step 120 can be inserted And the engaging groove 720 formed on the outer surface of the corresponding cover is used as the second engaging portion, thereby binding the first engaging portion and the second engaging portion. Thus, the housing 100 is provided with an inner space, which is required for the signal input device including the flexible printed circuit board 300, the elastic member 600, the push button 200, the conductor 400 and the push button 500, And is made into a finished product with cover 700 binding.

As described above, the method of manufacturing a signal input device according to the present invention has the advantage of being able to perform a process quickly and accurately, to simplify a manufacturing process, to inline the process, and to dramatically increase productivity .

Further, the signal input device manufactured by the manufacturing method according to the present invention can be applied to various electronic products to input a variety of signals in accordance with the direction of the operating force and the combination of the push buttons pushed in the lateral direction, It is possible to further improve the user interface environment capable of controlling the user interface.

10: jig 11: release coating layer 12: elastic part
21: flexible printed circuit board 22: dome key
30: jig 31: jig
40: insert mold part 41: inner mold part
100: housing 110: fixed wall 120: fastening jaw
200: Push button 210: Upper part 212: Through hole
220: lower end portion 222: lower side wall 300: flexible printed circuit board
301: center line 302: first branch line 303: second branch line
310: terminal switch 312: positive terminal 314: negative terminal
320: dome key 322: positive line 324: negative line
330: Connector terminal 340: Protective film
400: conductor 410: protrusion 500: push button
510: push rod 520: seat part 600: elastic member
700: cover 710: opening 720: fastening groove

Claims (7)

A housing having an inner space open at an upper side;
A push button seated in the inner space;
A flexible printed circuit board surrounding at least one of the inner wall of the inner space and the outer wall of the push button and having at least two terminal switches;
A conductor surrounding one of the inner wall of the inner space and the outer wall of the push button and spaced apart from the flexible printed circuit board to contact the terminal switch by the push button;
A pushbutton having an upper end penetrating upwardly of the push button and a lower end seated on an upper portion of the dome key located on a bottom surface of the housing; And
And an elastic member inserted between the housing and the push button and returning the push button to an original position so that the terminal switch and the conductor are spaced apart when the push button is moved,
Fixing the flexible printed circuit board to surround the inner wall of the housing,
Mounting the elastic member on the inner protrusion of the housing to which the flexible printed circuit board is fixed,
Mounting the push button and the push button in which the conductor is inserted into the flexible printed circuit board on the outer downward side and the push button on a housing mounted with the elastic member;
And engaging a first engaging portion protruding or recessed from an outer circumferential surface of the housing on which the push button and the push button are mounted, with a second engaging portion formed between the inner circumferential surfaces of the cover,
The step of fixing the flexible printed circuit board to surround the inner wall of the housing may include inserting a cylindrical jig with the flexible printed circuit board into the inner space of the housing, To be in close contact with the inner wall,
The step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include combining a jig having a plurality of jigs and an insert mold having an inner mold to which a plurality of housings corresponding to the jigs are mounted, Wherein the signal input device comprises:
delete The method according to claim 1,
Wherein the insert mold includes a housing formed by molding resin melt after injecting the resin melt into each of the inner molds.
The method according to claim 1,
Wherein the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing further comprises the step of blowing compressed air into the inner space of the housing to closely contact the inner space.
The method according to claim 1,
The step of fixing the flexible printed circuit board so as to surround the inner wall of the housing may include inserting a cylindrical jig with the flexible printed circuit board into the inner space of the housing and then rotating the rotary shaft of the rotary driving unit, And the jig is rotated so that the flexible printed circuit board is brought into close contact with the inner wall of the housing.
The method according to claim 1,
Wherein the step of fixing the flexible printed circuit board so as to surround the inner wall of the housing includes providing an elastic part between the jig and the flexible printed circuit board,
Wherein the flexible printed circuit board is brought into close contact with the inner wall of the housing effectively due to the elastic force of the elastic portion in the process of closely contacting the cylindrical jig with the flexible printed circuit board to the inner wall of the housing .
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