KR101820491B1 - Method of manufacturing dome switch - Google Patents

Method of manufacturing dome switch Download PDF

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Publication number
KR101820491B1
KR101820491B1 KR1020160027536A KR20160027536A KR101820491B1 KR 101820491 B1 KR101820491 B1 KR 101820491B1 KR 1020160027536 A KR1020160027536 A KR 1020160027536A KR 20160027536 A KR20160027536 A KR 20160027536A KR 101820491 B1 KR101820491 B1 KR 101820491B1
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KR
South Korea
Prior art keywords
base
film
dome
supplying
terminal portion
Prior art date
Application number
KR1020160027536A
Other languages
Korean (ko)
Other versions
KR20170104755A (en
Inventor
정의선
Original Assignee
정의선
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Publication date
Application filed by 정의선 filed Critical 정의선
Priority to KR1020160027536A priority Critical patent/KR101820491B1/en
Publication of KR20170104755A publication Critical patent/KR20170104755A/en
Application granted granted Critical
Publication of KR101820491B1 publication Critical patent/KR101820491B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/48—Snap-action arrangements depending upon deformation of elastic members using buckling of disc springs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button

Abstract

The present invention relates to a method of manufacturing a dome switch which is suitable for mass production by automation and which improves the contact to minimize connection failure, comprising a base supplying step of supplying a roll-shaped base by rotation of a base roller; A concave portion and a connecting portion forming a concave portion and a connecting portion on the upper side of the terminal portion formed in the base by the forging die; A lower film supplying step of supplying a lower film in the form of a roll to the lower side of the base by rotation of the lower film roller; A lower film bonding step of bonding the lower film to the lower side of the terminal portion by fusion bonding; A metal dome joining step of joining the metal dome to an upper side of the terminal portion so as to close the recess using the dome joining device; An upper film supplying step for supplying the upper film of the roll shape to the upper side of the base by rotation of the upper film roller; An upper film bonding step of bonding the upper film to the upper side of the terminal portion and the metal dome by fusion bonding; A dome switch separating step of separating the terminal portion from the base by a cutting device and dropping the completed dome switch to a collection box, wherein a plurality of space portions are spaced apart in the longitudinal direction from the base supplied in the base supplying step A terminal portion connected to the connection portion is formed in the space portion, and the connection portion is cut by the cutter in the dome switch separation step to separate the dome switch.
Therefore, the present invention can minimize the defective rate by supplying the respective materials and the entire manufacturing process such as forging, welding, cutting and the like by automation, and it is suitable for mass production and can reduce manufacturing cost and product cost, It is effective. In addition, since the metal dome is inserted into the concave portion and is easily connected to the connection portion, defective connection can be prevented, the elastic force is strengthened and returned quickly, and the film is welded to the upper and lower sides of the base, The flux can be prevented from penetrating when soldering to the terminal connection portion, thereby minimizing defects.

Description

TECHNICAL FIELD The present invention relates to a manufacturing method of a dome switch,

The present invention relates to a dome switch installed on a button of a mobile phone and performing connection and return by elastic force. More particularly, the present invention relates to a dome switch suitable for mass production by automation, ≪ / RTI >

Conventionally, as shown in FIG. 1, a masking or kiss cut 13 is formed on a white tape 1, a center is fitted through a pilot hole 12, And a transparent vinyl plate 6 was attached to the upper surface of the dome 4 to form one pad array.

 Each of the pads 100 attached with the plurality of dome 4 was detached from the transparent vinyl plate 6 and adhered to a printed circuit board.

However, since the dome switch manufactured by the conventional method requires the operator to attach the dome by hand, the production amount is lowered and the defective rate is increased, which limits the mass production.

In addition, when the dome switch is applied to an FPC having a flat contact point, connection by pressing is not smoothly performed.

It is an object of the present invention to provide a method of manufacturing a dome switch suitable for mass production by automating the entire manufacturing process.

Another object of the present invention is to provide a method of manufacturing a dome switch in which recesses and connection portions are formed in an FPC by forging to improve connection defects.

A dome switch manufacturing method according to the present invention includes: a base supplying step of supplying a roll-shaped base by rotation of a base roller; A concave portion and a connecting portion forming a concave portion and a connecting portion on the upper side of the terminal portion formed in the base by the forging die; A lower film supplying step of supplying a lower film in the form of a roll to the lower side of the base by rotation of the lower film roller; A lower film bonding step of bonding the lower film to the lower side of the terminal portion by fusion bonding; A metal dome joining step of joining the metal dome to an upper side of the terminal portion so as to close the recess using the dome joining device; An upper film supplying step for supplying the upper film of the roll shape to the upper side of the base by rotation of the upper film roller; An upper film bonding step of bonding the upper film to the upper side of the terminal portion and the metal dome by fusion bonding; A dome switch separating step of separating the terminal portion from the base by a cutting device and dropping the completed dome switch to a collection box, wherein a plurality of space portions are spaced apart in the longitudinal direction from the base supplied in the base supplying step A terminal portion connected to the connection portion is formed in the space portion, and the connection portion is cut by the cutter in the dome switch separation step to separate the dome switch.

According to the manufacturing method of the dome switch according to the present invention, the entire manufacturing process such as supply of each material, forging, welding, cutting, and the like is progressed by automation, thereby minimizing the defect rate and being suitable for mass production, So that there is a more economical effect.

In addition, since the metal dome is inserted into the concave portion and is easily connected to the connection portion, defective connection can be prevented, the elastic force is strengthened and returned quickly, and the film is welded to the upper and lower sides of the base, It is advantageous that the flux can be prevented from penetrating when soldering to the terminal connection portion, thereby minimizing defects.

1 is a perspective view showing a pad array for manufacturing a conventional dome switch;
2 is a block diagram illustrating a manufacturing process of a dome switch according to the present invention.
3 is a view schematically showing a manufacturing process of a dome switch according to the present invention;
Figure 4 is a top view of the base of the present invention
5 is a plan view showing a base having a concave portion and a connection portion;
6 is an enlarged cross-sectional view taken along the line AA in Fig. 5
7 is a cross-sectional view of the dome switch according to the present invention

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

2, the dome switch according to the present invention includes a base supplying step S10, a recess and connection forming step S20, a lower film supplying step S30, a lower film bonding step S40, A metal dome joining step S50, an upper film feeding step S60, an upper film joining step S70, a dome switch separating step S80 and a waste material collecting step S90 are sequentially performed.

Such a manufacturing process is advantageous for mass production by increasing the amount of production and minimizing the defective rate by supplying and bonding the materials automatically over the entire section as shown in FIG.

In the base supply step S10, the base 20 in the form of a roll is supplied to the automated line by the rotation of the base roller 200. The base 20 includes a plurality of feed holes 21 ) Are formed at regular intervals in the longitudinal direction to maintain the same moving speed and accurate working position.

A plurality of space portions 22 are formed in the base 20 in a rectangular shape with a space in the longitudinal direction and a terminal portion 30 connected between the space portions 22 by a pair of connection portions 23 And a plurality of terminal connection portions 31 are formed in the terminal portion 30 to connect to the main PCB of the portable telephone.

The terminal portion 30 is a part of a base 20 which is moved by an automation line and is manufactured by a dome switch, and when the manufacturing is completed, the cutting line 24 is cut to become an end product dome switch.

The base 20 is formed by vertically and horizontally forming a plurality of terminal portions 30 through the base roller 200 so that a large number of dome switches can be manufactured at the same time.

5 and 6, the concave portion and the connection portion forming step S20 are formed on the upper side of the terminal portion 30 by using the forging die 300, A connecting portion 32 protruding upward is formed at the center of the concave portion 32.

The concave portion 32 and the connecting portion 32 are configured to improve the connection failure by further facilitating the pressing, returning, and connecting of the dome switch.

That is, when the user presses the button of the cellular phone, the concave portion 32 is pressed and inserted into the dome made of metal, so that the elasticity can be maximized to return easily. The contact between the dome and the dome is formed close to each other, thereby solving the problem of connection, which is a conventional problem.

The recessed portion 32 and the connecting portion 32 are formed simultaneously with the movement of the forging die 300 so that the recessed portion 32 and the connecting portion 32 are suitable for mass production and the forging die 300 is formed so as to correspond to a plurality of terminal portions 30 formed up and down, As shown in FIG.

In the lower film feed step S30, the lower film roll 40 is supplied at the same feed rate from the lower side of the base 20 by the rotation of the lower film rollers 400, The terminal film 30 and the lower film 40 are bonded to each other by fusion bonding (the related device is not shown).

The center portion of the lower film 40 is integrally joined to the lower side of the terminal portion 30 by being divided in the process of fusion by forming the same shape as the terminal portion 30 in the longitudinal direction by cutting.

In the metal dome joining step (S50), the metal dome 50 formed as a gentle upward curved line as shown in FIG. 7 is inserted into the terminal portion (not shown) by using the dome coupling device 500 to seal the concave portion 32 30).

The metal dome 50 is bent downward by pressing the mobile phone button and is connected to the connection part 32 and is made of a thin metal so as to return to the original state by the elastic force.

In the upper film feed step S60, the upper film 60 formed in a roll form by the rotation of the upper film rollers 600 is fed at the same feed rate from the upper side of the base 20, S70), the upper film 60 is coupled to the upper side of the terminal unit 30 and the metal dome 50. At this time, the upper film 60 is joined by fusion (the related apparatus is not shown).

The central portion of the upper film 60 is formed in the longitudinal direction by a plurality of cutouts in the center of the terminal portion 30 so as to be separated from the terminal portion 30 and coupled to the upper portion of the terminal portion 30 and the metal dome 50 .

In the dome switch disconnection step S80, the terminal unit 30 in which the lower film 40, the upper film 60, and the metal dome 50 are sequentially connected using the cutting device 700 is cut. At this time, 23 are cut by the cutter so that the finished product of the dome switch drops to the collection box 70. [

In the waste material recovery step S90, the terminal 20 is separated from the base 30 by the use of the collecting roller 800, and the base 30 is connected to the upper and lower sides of the terminal 30, The upper and lower films 60 and 40 are separated from each other.

7, the concave portion 32 and the connecting portion 32 are formed on the upper surface of the terminal portion 30, which is the base 20, by forging, and the dome switch 32 of the terminal portion 30 And the metal dome 50 and the upper film 60 are coupled in order on the upper side of the terminal portion 30 to seal the concave portion 32.

Therefore, when the user of the cellular phone presses the button and the metal dome 50 is pressed in the direction of the arrow, the metal dome 50 is inserted into the recess 32 and is easily connected to the connecting portion 32, And the elastic force is strengthened and returned quickly.

This dome switch not only strengthens the waterproof function by bonding the film to the lower side and the upper side of the terminal portion 30 by fusion bonding but also prevents the flux from penetrating when soldering to the terminal connection portion 31, have.

The dome switch according to the present invention is capable of minimizing the defective rate by automatically supplying the respective materials and pre-manufacturing processes such as forging, welding and cutting, and is suitable for mass production, thereby reducing manufacturing cost and product cost, to be.

20: Base 21: Feed hole
22: space part 23: connection part
24: cutting line 30: terminal portion
31: Terminal connection part 32:
32: connection part 40: lower film
50: metal dome 60: upper film
70: Collection Box 200: Base Roller
300: Forging mold 400: Lower film roller
500: dome coupling device 600: upper film roller
700: Cutting device 800: Collection roller

Claims (5)

A base supplying step (S10) of supplying the roll-shaped base (20) by rotation of the base roller (200); A concave portion and a connecting portion forming step S20 for forming the concave portion 32 and the connecting portion 33 on the upper side of the terminal portion 30 formed on the base 20 by the forging die 300; A lower film supply step S30 for supplying the roll-shaped lower film 40 to the lower side of the base 20 by rotation of the lower film roller 400; A lower film bonding step (S40) for bonding the lower film (40) to the lower side of the terminal portion (30) by fusion; A metal dome joining step (S50) of joining the metal dome (50) to the upper side of the terminal portion (30) so as to close the recess portion (32) by using the dome joining device (500); An upper film supply step S60 for supplying the upper film 60 in the roll form to the upper side of the base 20 by rotation of the upper film roller 600; An upper film bonding step (S70) for bonding the upper film (60) to the upper side of the terminal portion (30) and the metal dome (50) by fusion; Separating the terminal unit 30 from the base 20 by the cutting device 700 and dropping the completed dome switch to the collection box 70. The dome switch separation step S80 is performed in this order,
A plurality of space portions 22 are formed in the base 20 supplied in the base supply step S10 with a gap in the longitudinal direction and a terminal portion 30 connected to the connection portion 23 is formed in the space portion 22 , And the connecting portion (23) is cut by a cutter in a dome switch separating step (S80) to separate the dome switch. The method according to claim 1,
After the dome switch separating step S80, the terminal portion 30 is separated from the base 20 and the upper portion and the lower portion of the terminal portion 30 are coupled to each other. (S90) for recovering the film (60) and the lower film (40) by rotation of the collection roller (800). delete delete delete
KR1020160027536A 2016-03-08 2016-03-08 Method of manufacturing dome switch KR101820491B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160027536A KR101820491B1 (en) 2016-03-08 2016-03-08 Method of manufacturing dome switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160027536A KR101820491B1 (en) 2016-03-08 2016-03-08 Method of manufacturing dome switch

Publications (2)

Publication Number Publication Date
KR20170104755A KR20170104755A (en) 2017-09-18
KR101820491B1 true KR101820491B1 (en) 2018-01-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020160027536A KR101820491B1 (en) 2016-03-08 2016-03-08 Method of manufacturing dome switch

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KR (1) KR101820491B1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012243554A (en) 2011-05-19 2012-12-10 Mitsumi Electric Co Ltd Switch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012243554A (en) 2011-05-19 2012-12-10 Mitsumi Electric Co Ltd Switch

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KR20170104755A (en) 2017-09-18

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