CN112072428B - Pressing process of metal contact pin for touch film connector - Google Patents

Pressing process of metal contact pin for touch film connector Download PDF

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Publication number
CN112072428B
CN112072428B CN202010666375.7A CN202010666375A CN112072428B CN 112072428 B CN112072428 B CN 112072428B CN 202010666375 A CN202010666375 A CN 202010666375A CN 112072428 B CN112072428 B CN 112072428B
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China
Prior art keywords
contact pin
bent
connector
pin
sealing
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Application number
CN202010666375.7A
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Chinese (zh)
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CN112072428A (en
Inventor
钱小玲
梅大宝
孙涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuxi Kehong Label Co ltd
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Wuxi Kehong Label Co ltd
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Priority to CN202010666375.7A priority Critical patent/CN112072428B/en
Publication of CN112072428A publication Critical patent/CN112072428A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
    • H01R13/405—Securing in non-demountable manner, e.g. moulding, riveting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46—Bases; Cases
    • H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/521—Sealing between contact members and housing, e.g. sealing insert
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/005—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for making dustproof, splashproof, drip-proof, waterproof, or flameproof connection, coupling, or casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
    • H03K17/96—Touch switches
    • H03K17/962—Capacitive touch switches
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a pressing process of a metal contact pin for a touch film connector, which comprises the steps of selecting a uniform contact pin, bending the contact pin in the notch, flattening the bent contact pin excessively after bending by adopting a pressing die, wherein the upper die is provided with a notch, the contact pin can completely puncture ink after being bent due to longer teeth of a product, and the lower die is provided with a metal sheet for positioning the contact pin, so that the contact pin is ensured to face one direction after being bent, the glue sealing effect is good, and the stability of the product is ensured; the broken conductive ink part is protected by the salt-resistant silica gel, so that the ink is isolated from salt mist, adverse phenomena caused by corrosion and oxidation of the ink are prevented, meanwhile, a used contact pin needs to be plated with nickel and then plated with gold, the anti-oxidation grade and the use environment are improved, the use requirements under severe environments such as kitchens and outdoors are met, the main control board of a client side can meet the use requirements without sealing glue at the connector, and the complete machine assembly time of a client is saved.

Description

Pressing process of metal contact pin for touch film connector
Technical Field
The invention relates to a pressing process of a metal contact pin for a touch film connector, and belongs to the technical field.
Background
From push-button phones a decade ago to resistive screen phones to capacitive touch screens we use today. Traditional mechanical switches have gradually exited the consumer market, and microswitches and resistive switches have been replaced by touch capacitive switches. At present, mobile phones and household appliances are updated day by day, and capacitive touch is always used as a core technology to exist in the hardware.
With the technology update, the reliability of materials and processes changes, and currently, in the household appliance industry, a touch panel occupies more than 95% of the total volume, and the control switch capacitive touch membrane at the inner core needs to be subjected to multiple reliability tests in different fields. The most destructive salt spray test among them makes many touch film connector parts of metal pins not meet the customer's requirements. The main reason is that after the touch membrane is broken by the contact pin, part of silver ions are damaged and dissociated, and then the touch membrane is contacted with salt mist to peel off the conductive ink, so that the function is poor.
Use ordinary pressing die utensil, be the plane steel sheet from top to bottom, impress the contact pin tooth in the oil, the pressfitting is directionless, and the tooth unevenness, silver thick liquid printing ink are easy after damaged free, lead to the experiment unqualifiedly.
Disclosure of Invention
The invention provides a metal contact pin for a touch film and a pressing process thereof, which are used for overcoming the defect of poor function caused by that after a touch film is broken by the contact pin, part of silver ions are damaged and dissociated and then contact with salt mist to cause peeling of conductive ink.
In order to solve the technical problems, the invention provides the following technical scheme:
the invention discloses a pressing process of a metal contact pin for a touch film connector, which comprises the following steps:
1. the contact pin is inserted into the back of the touch film, the contact pin is bent on the conductive surface by using a pressing die, and the tip of the tooth is inserted into the conductive ink after the front surface is bent, so that the process forms an arc surface at the bent part of the tooth, and the arc surface is relatively flat;
2. the contact pin in the connector needs to be longer than the contact pin used in common use, so that the contact pin has enough length to be inserted into the printing ink after being bent, the contact pin teeth with the length of 1.5mm to 2mm completely meet the requirements after verification, and meanwhile, the head of the contact pin needs to be plated with nickel and then plated with gold during manufacturing, so that the anti-oxidation grade of the contact pin is improved;
3. sealing the connector salt-proof silica gel, performing full-surrounding covering at the positions of the contact pins, and sleeving a connector plastic shell after the sealing glue is naturally dried;
4. after the connector plastic shell is sleeved, sealing the connector and the side edge with the same type of sealing glue, and discharging after 12 hours of sealing glue;
the laminating die comprises an upper die and a lower die.
Further, the tooth length of the contact pin is 1.8 mm.
Furthermore, the upper die is provided with a notch, the contact pin is bent in the notch, and the bent contact pin is excessively flat.
Furthermore, the lower die is provided with a positioning metal sheet, so that the contact pin is bent and faces to one direction, the glue sealing effect is good, and the stability of a product is ensured.
The invention has the following beneficial effects: the broken conductive ink part is protected by the salt-resistant silica gel, so that the ink is isolated from salt mist, adverse phenomena caused by corrosion and oxidation of the ink are prevented, meanwhile, a used contact pin needs to be plated with nickel and then plated with gold, the anti-oxidation grade and the use environment are improved, the use requirements under severe environments such as kitchens and outdoors are met, the main control board of a client side can meet the use requirements without sealing glue at the connector, and the complete machine assembly time of a client is saved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: 1. an upper die; 1-1, a notch; 2. a lower die; 2-1, positioning the metal sheet.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Example 1
As shown in fig. 1, a process for pressing a metal contact pin for a touch film connector includes the following steps:
1. the contact pin is inserted into the back of the touch film, the contact pin is bent on the conductive surface by using a pressing die, the tip of the tooth is inserted into the conductive ink after the front surface is bent, and the process forms an arc surface at the bent part of the tooth, so that the process is relatively flat.
2. The laminating mold comprises an upper mold 1 and a lower mold 2, a notch 1-1 is formed in the lower end face of the upper mold 1, a contact pin is bent at the notch 1-1, the contact pin is excessively flat after being bent, and a positioning metal sheet 2-1 is arranged on the upper end face of the lower mold 2, so that the contact pin is bent towards one direction, the sealing effect is good, and the stability of a product is guaranteed.
3. The contact pin in the connector needs to be longer than a contact pin used commonly, so that the contact pin is bent and has enough length to be inserted into the printing ink, the contact pin teeth with the length of 1.5mm to 2mm completely meet the requirements through verification, meanwhile, the head of the contact pin needs to be plated with nickel and then plated with gold during manufacturing, and the anti-oxidation grade of the contact pin is improved.
4. And (3) sealing the connector by using the salt-resistant silica gel of the connector, fully covering the contact pin in an enclosing manner, and sleeving the connector plastic shell after the sealing glue is naturally dried.
5. And after the connector plastic shell is sleeved, sealing the connector and the side edge with glue, and discharging after 12 hours of sealing.
The working principle is as follows: choose unified contact pin for use, tooth length 1.8mm adopts the pressfitting mould, goes up the mould and has the notch, and the contact pin is buckled at the notch, and the contact pin is excessively level and smooth after buckling, because the product tooth is longer, can puncture printing ink completely after exaggerating, and the lower mould has the sheetmetal of location contact pin, guarantees like this that the contact pin is buckled back towards a direction, and it is effectual to glue, guarantees the stability of product.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A pressing process of a metal contact pin for a touch film connector is characterized by comprising the following steps:
1) the contact pin is inserted into the back of the touch film, the contact pin is bent on the conductive surface by using a pressing die, and the tip of the tooth is inserted into the conductive ink after the front surface is bent, so that the bent part of the tooth forms an arc surface which is relatively flat;
2) after being bent, the teeth of the contact pin with the length of 1.5mm to 2mm are inserted into the printing ink, and meanwhile, the head part for manufacturing the contact pin needs to be plated with nickel and then plated with gold, so that the anti-oxidation grade of the contact pin is improved;
3) sealing the connector salt-proof silica gel, performing full-surrounding covering at the positions of the contact pins, and sleeving a connector plastic shell after the sealing glue is naturally dried;
4) after the connector plastic shell is sleeved, sealing the connector and the side edge with glue, and airing for 12 hours after sealing the glue;
the pressing die comprises an upper die and a lower die.
2. The process of pressing a metal pin for a touch film connector according to claim 1, wherein the tooth length of the pin is 1.8 mm.
3. The process of claim 1, wherein the lower surface of the upper mold is provided with a notch, the pin is bent in the notch, and the bent pin is excessively flat.
4. The pressing process of the metal contact pin for the touch screen connector as claimed in claim 1, wherein a positioning metal sheet is disposed on the upper end surface of the lower mold for ensuring that the contact pin is bent and faces one direction, thereby improving the sealing effect.
CN202010666375.7A 2020-07-13 2020-07-13 Pressing process of metal contact pin for touch film connector Active CN112072428B (en)

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Application Number Priority Date Filing Date Title
CN202010666375.7A CN112072428B (en) 2020-07-13 2020-07-13 Pressing process of metal contact pin for touch film connector

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CN202010666375.7A CN112072428B (en) 2020-07-13 2020-07-13 Pressing process of metal contact pin for touch film connector

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CN112072428B true CN112072428B (en) 2022-02-18

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1815824A (en) * 2005-02-02 2006-08-09 青荣科技有限公司 Flexible surface-adhering connector and making method
CN201278521Y (en) * 2008-10-17 2009-07-22 姚国祥 Household electrical appliance controller with touch screen
CN101809691A (en) * 2007-04-20 2010-08-18 英克-罗吉克斯有限公司 In-molded capacitive switch
KR20110107590A (en) * 2010-03-25 2011-10-04 삼성전기주식회사 Touch panel
CN202150560U (en) * 2011-04-08 2012-02-22 深圳市得润电子股份有限公司 Soft rowed wire connector structure
CN103336640A (en) * 2013-06-18 2013-10-02 苏州市健邦触摸屏技术有限公司 Capacitive touch screen and manufacturing method thereof
CN203673458U (en) * 2013-10-31 2014-06-25 代傲电子控制（南京）有限公司 Touch displaying device
CN104466613A (en) * 2013-09-25 2015-03-25 福特全球技术公司 Conductive ink elastomeric molded connector
CN105680274A (en) * 2016-01-08 2016-06-15 沈阳兴华航空电器有限责任公司 Filling and sealing technique for stranded elastic contact pin micro-rectangular electric connector
WO2016123811A1 (en) * 2015-02-06 2016-08-11 深圳市柔宇科技有限公司 Capacitive touch screen and combination of same with flexible circuit board
CN109450428A (en) * 2018-12-29 2019-03-08 无锡市科虹标牌有限公司 Capacitive touch switch with metal material

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011003104A (en) * 2009-06-19 2011-01-06 Nissha Printing Co Ltd Resistive film type touch panel with depression detection function
CN110661520A (en) * 2018-06-29 2020-01-07 法雷奥汽车内部控制（深圳）有限公司 Capacitive touch switch and assembling method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1815824A (en) * 2005-02-02 2006-08-09 青荣科技有限公司 Flexible surface-adhering connector and making method
CN101809691A (en) * 2007-04-20 2010-08-18 英克-罗吉克斯有限公司 In-molded capacitive switch
CN201278521Y (en) * 2008-10-17 2009-07-22 姚国祥 Household electrical appliance controller with touch screen
KR20110107590A (en) * 2010-03-25 2011-10-04 삼성전기주식회사 Touch panel
CN202150560U (en) * 2011-04-08 2012-02-22 深圳市得润电子股份有限公司 Soft rowed wire connector structure
CN103336640A (en) * 2013-06-18 2013-10-02 苏州市健邦触摸屏技术有限公司 Capacitive touch screen and manufacturing method thereof
CN104466613A (en) * 2013-09-25 2015-03-25 福特全球技术公司 Conductive ink elastomeric molded connector
CN203673458U (en) * 2013-10-31 2014-06-25 代傲电子控制（南京）有限公司 Touch displaying device
WO2016123811A1 (en) * 2015-02-06 2016-08-11 深圳市柔宇科技有限公司 Capacitive touch screen and combination of same with flexible circuit board
CN105680274A (en) * 2016-01-08 2016-06-15 沈阳兴华航空电器有限责任公司 Filling and sealing technique for stranded elastic contact pin micro-rectangular electric connector
CN109450428A (en) * 2018-12-29 2019-03-08 无锡市科虹标牌有限公司 Capacitive touch switch with metal material

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: A kind of pressing process of metal pin for touch film connector

Effective date of registration: 20220812

Granted publication date: 20220218

Pledgee: Bank of China Wuxi Binhu sub branch

Pledgor: WUXI KEHONG LABEL Co.,Ltd.

Registration number: Y2022320010462

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