CN113629437B - Electric connector and manufacturing method thereof - Google Patents
Electric connector and manufacturing method thereof Download PDFInfo
- Publication number
- CN113629437B CN113629437B CN202010384967.XA CN202010384967A CN113629437B CN 113629437 B CN113629437 B CN 113629437B CN 202010384967 A CN202010384967 A CN 202010384967A CN 113629437 B CN113629437 B CN 113629437B
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- China
- Prior art keywords
- base
- exposed
- conductive terminal
- sealing cavity
- exposure
- Prior art date
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Links
- 238000004519 manufacturing process Methods 0.000 title claims description 6
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 238000003466 welding Methods 0.000 claims abstract description 18
- 210000001503 joint Anatomy 0.000 claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 94
- 229910052759 nickel Inorganic materials 0.000 claims description 47
- 239000000758 substrate Substances 0.000 claims description 20
- 239000000047 product Substances 0.000 claims description 11
- 239000011265 semifinished product Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 8
- 229910052737 gold Inorganic materials 0.000 claims description 8
- 239000010931 gold Substances 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- YPPQDPIIWDQYRY-UHFFFAOYSA-N [Ru].[Rh] Chemical compound [Ru].[Rh] YPPQDPIIWDQYRY-UHFFFAOYSA-N 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000012212 insulator Substances 0.000 claims 4
- 230000004308 accommodation Effects 0.000 claims 3
- 238000005253 cladding Methods 0.000 claims 1
- 238000005476 soldering Methods 0.000 description 12
- 230000000903 blocking effect Effects 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000013011 mating Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- 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
- H01R13/5202—Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
-
- 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
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5216—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases characterised by the sealing material, e.g. gels or resins
-
- 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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
-
- 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
- H01R43/18—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing bases or cases for contact members
-
- 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
- H01R43/20—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for assembling or disassembling contact members with insulating base, case or sleeve
Abstract
The electric connector comprises an insulating body, a conductive terminal fixed on the insulating body, a shell coated outside the insulating body and a waterproof piece arranged in the shell, wherein the insulating body is provided with a base, the shell is provided with an accommodating space, the base divides the accommodating space into a butt joint cavity positioned at the front end of the base and a sealing cavity positioned at the rear end of the base, the conductive terminal is provided with a fixing part fixed on the base, a contact part which is formed by extending forwards from the fixing part and is exposed in the accommodating space, an exposure part which is formed by extending backwards from the fixing part and is exposed in the sealing cavity, and a welding part which is formed by extending backwards from the exposure part and is exposed out of the sealing cavity.
Description
[ field of technology ]
The present invention relates to an electrical connector, and more particularly, to an electrical connector capable of being inserted in a forward direction and a reverse direction.
[ background Art ]
Chinese patent application CN109088215a discloses an electrical connector, which comprises an insulating body, two rows of conductive terminals fixed in the insulating body, and a housing sleeved outside the insulating body, wherein the insulating body comprises a base, a tongue plate extending forward from the base, and a mounting portion extending backward from the base. The base is accommodated in the accommodating space of the shell to divide the accommodating space into a butt joint cavity positioned at the front end of the base and a sealing cavity positioned at the rear end of the base. The conductive terminal is provided with a fixing part fixed on the base, a contact part which is formed by extending forward from the fixing part and is exposed on the abutting surface of the tongue plate, an exposed part which is formed by extending backward from the fixing part and is exposed in the sealing cavity, and a welding part which is formed by extending backward from the exposed part, and the waterproof piece is blocked in the sealing cavity and covers the exposed part. However, the existing conductive terminals generally include a base body made of copper material, nickel layers for leveling the surface of the base body are plated on the surface of the base body corresponding to the contact portion, the holding portion, the exposed portion and the soldering portion, and the exposed portion has insufficient holding force between the waterproof member and the exposed portion due to the presence of the leveled nickel layers, and when the electrical connector passes through the furnace for soldering, the waterproof member is also easily separated from the nickel layer surface of the exposed portion, and the waterproof effect is poor.
There is a need, therefore, for an improvement over existing electrical connectors that overcomes this disadvantage.
[ invention ]
The invention aims to provide an electric connector with good waterproof effect.
In order to achieve the above object, the present invention is realized by the following technical scheme: an electric connector comprises an insulating body, a conductive terminal fixed on the insulating body, a shell coated outside the insulating body and a waterproof piece arranged in the shell, wherein the insulating body is provided with a base, the shell is provided with a containing space penetrating through the front and the rear, the base is fixed in the containing space and divides the containing space into a butt joint cavity positioned at the front end of the base and a sealing cavity positioned at the rear end of the base, the conductive terminal is provided with a fixing part fixed on the base, a contact part which is formed by extending forwards from the fixing part and is exposed in the containing space, an exposure part which is formed by extending backwards from the fixing part and is exposed in the sealing cavity and a welding part which is formed by extending backwards from the exposure part and is extended backwards into the sealing cavity, the contact part, the fixing part and the welding part of the conductive terminal comprise nickel layers electroplated on the surfaces of the base, the surfaces of the base corresponding to the exposure part are exposed in the sealing cavity, and the waterproof piece is coated in the sealing cavity and is coated in the sealing cavity.
Further, the insulating body further comprises a tongue plate located in the butt joint cavity and a mounting part formed by extending the base backwards, the contact part is exposed on the butt joint surface of the tongue plate, the exposure part is arranged on the mounting part, the mounting part is provided with a slot exposing the exposure part in the sealing cavity, and the waterproof piece is filled in the sealing cavity through an epoxy resin dispensing process and is filled in the slot to cover the exposure part.
Further, the mounting part comprises a containing section which is formed by extending backwards from the base and is positioned in the sealing cavity, and a mounting section which is formed by extending backwards from the containing section and is extended backwards from the sealing cavity, and the grooves penetrate through the upper surface and the lower surface of the containing section.
Further, in the transverse direction perpendicular to the front-rear direction, the width of the accommodating section is smaller than the width of the sealing cavity and the width of the mounting section, and a notch covered by the waterproof piece is formed between the transverse two sides of the accommodating section and the transverse two sides of the mounting section.
Further, in the semi-finished product of the conductive terminal, the contact portion, the holding portion, the exposed portion and the soldering portion of the conductive terminal include the nickel layer electroplated on the surface of the base body, and in the finished product of the conductive terminal, the exposed portion is a portion where the nickel layer is removed from the surface of the base body to expose the surface of the base body.
Further, the nickel layer on the surface of the substrate at the corresponding exposed portion is removed by a nickel stripping agent prepared from sulfuric acid and hydrogen peroxide.
Further, the nickel layer on the surface of the substrate at the corresponding exposed portion is removed by laser.
Further, in the finished product of the conductive terminal, the contact portion, the holding portion and the soldering portion further include a gold layer electroplated above the nickel layer.
Further, in the semi-finished product of the conductive terminal, the contact portion, the holding portion, the exposure portion and the welding portion of the conductive terminal include the nickel layer electroplated on the surface of the substrate, at least the contact portion further includes at least one of a gold layer or a rhodium ruthenium layer electroplated on the nickel layer, the semi-finished product of the conductive terminal is integrally formed in the insulating body, and in the finished product of the conductive terminal, the exposure portion is a portion of the surface of the substrate where the nickel layer is removed in the slot so as to expose the surface of the substrate.
In order to achieve the above purpose, the present invention also adopts the following technical scheme: a method of manufacturing an electrical connector, comprising the steps of: providing at least one row of conductive terminals, wherein each conductive terminal comprises a fixing part, a contact part formed by extending forwards from the fixing part, an exposed part formed by extending backwards from the fixing part and a welding part formed by extending backwards from the exposed part, each conductive terminal comprises a base body made of copper materials, and the contact part, the fixing part, the exposed part and the welding part comprise nickel layers electroplated on the surfaces of the base bodies in a semi-finished product of the conductive terminal; providing an insulating body, wherein the insulating body is integrally formed outside the conductive terminal to form a terminal module together with the conductive terminal, the insulating body comprises a base, a tongue plate formed by extending forwards from the base and a mounting part formed by extending backwards from the base, a slot is formed on the mounting part penetrating through the upper surface and the lower surface of the mounting part, the fixing part is fixed on the base, the contact part is exposed on the abutting surface of the tongue plate, the exposure part is exposed on the slot, and in a finished product of the conductive terminal, the exposure part is a part of the surface of the base body, in which the nickel layer is removed to expose the surface of the base body; providing a shell, wherein the shell is provided with a containing space which is penetrated from front to back, the containing space is arranged in the terminal module from back to front, the base is fixedly held in the containing space and divides the containing space into a butt joint cavity positioned at the front end of the base and a sealing cavity positioned at the rear end of the base, the tongue plate is positioned in the butt joint cavity, and the groove is exposed in the sealing cavity; and providing a waterproof piece, wherein the waterproof piece is filled in the sealing cavity through a dispensing process and is filled in the groove to cover the exposed part.
Compared with the prior art, the invention has the following beneficial effects: according to the electric connector disclosed by the invention, the exposed part of the conductive terminal is exposed in the sealing cavity of the shell, the waterproof piece for covering the exposed part is blocked in the sealing cavity, the surface of the substrate corresponding to the exposed part is exposed by removing the nickel layer serving as a filling effect on the surface of the substrate corresponding to the exposed part or the surface of the substrate corresponding to the exposed part is not provided with the nickel layer, and the exposed part can be tightly covered by the waterproof piece by virtue of the roughness of the surface of the substrate of the copper material, so that water vapor cannot easily pass between the waterproof piece and the exposed part, and the electric connector has a good waterproof effect.
[ description of the drawings ]
Fig. 1 is a perspective view of an electrical connector of the present invention.
Fig. 2 is a perspective view of the other view of fig. 1.
Fig. 3 is an exploded perspective view of the electrical connector of the present invention.
Fig. 4 is an exploded perspective view of the other view of fig. 3.
Fig. 5 is a perspective view of a terminal module of the electrical connector of the present invention.
Fig. 6 is an exploded view of a terminal module of the electrical connector of the present invention.
Fig. 7 is an exploded perspective view of the other view of fig. 6.
Fig. 8 is a front view of a terminal module of the electrical connector of the present invention.
Fig. 9 is an exploded view of the terminal module of the electrical connector of the present invention mounted within the housing without the seal member being blocked.
Fig. 10 is a cross-sectional view taken along line A-A of fig. 1.
Fig. 11 is a cross-sectional view taken along line B-B of fig. 1.
Fig. 12 is a side view of a conductive terminal of the electrical connector of the present invention.
The invention will be further described in the following detailed description in conjunction with the above-described figures.
[ detailed description ] of the invention
Referring to fig. 1 to 12, the electrical connector 100 of the present invention is a USB Type C receptacle connector for inserting a front-back mating plug connector (not shown) in a front-back direction (i.e. a plugging direction) in a forward and reverse direction, but the Type of the electrical connector 100 is not limited thereto. The following will specifically describe the electrical connector 100 in terms of its USB Type C receptacle connector. The electrical connector 100 includes an insulative housing 1, a conductive terminal 2 accommodated in the insulative housing 1 to form a terminal module 20 together with the insulative housing 1, a housing 3 covering the insulative housing 1, and a waterproof member 4 disposed in the housing 3. In the present invention, the conductive terminals 2 are arranged in two rows, and the electrical connector 100 further includes an intermediate shielding plate 5 disposed between the two rows of conductive terminals 2 in the vertical direction, and the intermediate shielding plate 5 is also accommodated in the insulating body 1 to form the terminal module 20.
In the present invention, the conductive terminal 2 is integrally formed with the insulating body 1. The insulating body 1 includes a base 11, a tongue plate 12 formed to extend forward from the base 11, and a mounting portion 13 formed to extend rearward from the base 11. The conductive terminal 2 has a holding portion 21 held to the base 11, a contact portion 22 formed extending forward from the holding portion 21 and exposed to the abutting surface 120 of the tongue plate 12, an exposed portion 23 formed extending rearward from the holding portion 21 and provided to the mounting portion 13, and a soldering portion 24 extending rearward from the exposed portion 23 and extending rearward from the mounting portion 13. Specifically, the insulating body 1 includes a first body portion 101 and a second body portion 102, the first body portion 101 is integrally formed on the lower row of conductive terminals 25 and the middle shielding plate 5, the upper row of conductive terminals 26 is assembled on the first body portion 101 from top to bottom, and the second body portion 102 is integrally formed outside the first body portion 101 to cover and hold the upper row of conductive terminals 26. Of course, the molding method of the insulating body 1, the conductive terminals 2 and the middle shielding plate 5 is not limited thereto, and the insulating body 1 may be molded and coated on the lower conductive terminals 25, the upper conductive terminals 26 and the middle shielding plate 5 to form the terminal module 20.
The housing 3 is formed by injection molding of insulating material, the housing 3 has a through-going accommodating space 30, the terminal module 20 is mounted in the accommodating space 30 from back to front, the base 11 is held in the accommodating space 30 and divides the accommodating space 30 into a butt joint cavity 301 at the front end of the base 11 and a sealing cavity 302 at the rear end of the base 11, the waterproof piece 4 is plugged in the sealing cavity 302 to limit the water vapor from flowing backward through the butt joint cavity 301, specifically, if the sealing performance is poor, the water vapor can flow backward from the gap between the base 11 and the housing 3 and the gap between the conductive terminal 2 and the insulating body 1. The solder portion 24 extends rearward out of the sealed cavity 302 for soldering to a circuit board (not shown). In order to limit the back-and-forth movement of the terminal module 20, the housing 3 includes a metal limiting member 31, the metal limiting member 31 includes a horizontally disposed base plate portion 311 integrally formed in the upper and lower wall surfaces of the housing 3, and a blocking portion 312 integrally connected to the base plate portion 311 and protruding into the accommodating space 30, and the blocking portion 312 is blocked on the front end surface 110 of the base 11 to limit the forward movement of the terminal module 20. When the terminal module 20 is mounted in the housing space 30, the rear end edge of the base plate 311 of the metal retainer 31 is bent downward to form a blocking piece 313 that is blocked by the rear end face 111 of the base 11. The housing 3 is provided with fitting portions 32 having mounting holes 320 on both sides thereof, and the housing 3 is fitted to a circuit board (not shown) through the fitting portions 32. The front end 33 of the housing 3 is recessed backward to form an annular groove 330, and a waterproof ring 6 is held in the annular groove 330, and the waterproof ring 6 is used for sealing and waterproof between the electrical connector 100 and a casing (not shown).
The mounting portion 13 of the insulating body 1 is provided with a groove 131 exposing the exposing portion 23 to the inside of the sealing chamber 302, and the waterproof member 4 sealed in the sealing chamber 302 is further filled in the groove 131 to cover the exposing portion 23. The blocking piece 313 is disposed corresponding to the slot 131 in the up-down direction, and the rear end surface 111 of the base 11 protrudes backward to form a blocking block 113 between the blocking piece 313 and the exposed portion 23, where the blocking block 113 can avoid accidental shorting of the blocking piece 313 and the exposed portion 23. The conductive terminal 2 includes a base 201 made of copper material, and the contact portion 22, the holding portion 21 and the soldering portion 23 of the conductive terminal 2 include a nickel layer 202 electroplated on the surface of the base 201 to fill up the surface of the base 201. In order to increase the binding force between the waterproof member 4 and the exposed portion 23, the waterproof member 4 is prevented from falling off from the exposed portion 23 due to the high temperature generated when the electric connector 100 passes through the furnace for welding, and the surface of the substrate 201 corresponding to the exposed portion 23 is exposed in the sealing cavity 302, so that the waterproof member 4 can be reliably coated on the rough exposed portion 23, thereby increasing the binding force between the waterproof member 4 and the exposed portion 23. The waterproof member 4 is preferably filled in the sealing cavity 302 and the slot 131 by an epoxy resin through a dispensing process to cover the exposed portion 23.
In a preferred embodiment of the present invention, the mounting portion 13 specifically includes a receiving section 132 formed to extend rearward from the base 11 and located in the sealing cavity 302, and a mounting section 133 extending rearward from the receiving section 132 and extending rearward from the sealing cavity 302. The slot 131 penetrates through the upper and lower surfaces of the accommodating section 132, and the welding portion 24 extends out of the mounting section 133. The top surface and the peripheral side of the mounting section 133 are covered with a metal cover 7 mounted on a circuit board (not shown), and the metal cover 7 further covers the soldering portion 24 to avoid interference between the electrical connector 100 and other components mounted on the circuit board (not shown). The width of the accommodating section 132 is smaller than the width of the sealing cavity 302 in the transverse direction perpendicular to the front-rear direction, the height of the accommodating section 132 is also smaller than the height of the sealing cavity 302 in the up-down direction perpendicular to the front-rear direction and the transverse direction, a notch 134 covered by the waterproof piece 4 is formed between the transverse two sides of the accommodating section 132 and the transverse two sides of the mounting section 133, and the notch 134 can effectively limit the waterproof piece 4 from falling backward.
In a preferred embodiment of the present invention, in addition to the contact portion 22, the holding portion 21 and the soldering portion 24 in the semi-finished product of the conductive terminal 2 including the nickel layer 202 plated on the surface of the substrate 201, the exposed portion 23 also includes the nickel layer 202 plated on the surface of the substrate 201, and in the finished product of the conductive terminal 2, the exposed portion 23 is a portion where the nickel layer 202 is removed from the surface of the substrate 201 so that the surface of the substrate 201 is exposed to the grooves 131. It should be noted that, the surface of the substrate 201 is removed with the nickel layer 202 to form the exposed portion 23 of the finished conductive terminal 2, and the exposed portion 23 is not particularly limited to completely remove nickel, and the exposed portion 23 may be exposed in the slot 131 by a small amount of nickel remaining in the process of removing the nickel layer 202. In this way, since the exposed portion 23 is a surface of the exposed base 201, which is relatively rough, the waterproof member 4 can be reliably bonded to the exposed portion 23 while avoiding separation of the two when subjected to high temperature. Of course, complete removal of the nickel layer 202 may allow for a better secure bond between the flashing 4 and the exposed portion 23. The nickel layer 202 of the exposed portion 23 may be removed by a nickel stripping agent coating composed of sulfuric acid and hydrogen peroxide, or may be removed by laser irradiation of the exposed portion 23. In the preferred embodiment of the present invention, the nickel layer 202 of the exposed portion 23 of the conductive terminal 2 is removed by a nickel stripping agent or laser after the conductive terminal 2 is held in the insulating body 1 in the slot 131. That is, the semi-finished product of the conductive terminal 2 is integrally formed in the insulating body 1, and the exposed portion 23 is a portion of the surface of the base 201 where the nickel layer 202 is removed in the groove 131 to expose the surface of the base 201 in the finished product of the conductive terminal 2.
In the present invention, the contact portion 22 of the conductive terminal 2 is required to be mated with a mating terminal (not shown) of a mating connector (not shown), and thus, there is a certain requirement for the electrical conductivity and corrosion resistance of the contact portion 22. In the finished product of the conductive terminal 2, the contact portion 22 further includes a gold layer or a rhodium-ruthenium layer electroplated above the nickel layer 202 to be in butt contact with a butt terminal (not shown) of a butt connector (not shown), and of course, the gold layer or the rhodium-ruthenium layer may be disposed above the rhodium-ruthenium layer. In addition, in the finished product of the conductive terminal 2, the holding portion 21 and the soldering portion 24 include a gold layer electroplated above the nickel layer 202, and in particular, the soldering portion 21 is provided with the gold layer, so that the electrical connection between the soldering portion and a circuit board (not shown) can be improved.
The method of manufacturing the electrical connector 100 of the present invention will be described with reference to fig. 1 to 12.
A method of manufacturing an electrical connector 100, the method comprising the steps of: providing two rows of conductive terminals 2 arranged up and down, wherein the conductive terminals 2 comprise a holding part 21, a contact part 22 formed by extending forwards from the holding part 21, an exposed part 23 formed by extending backwards from the holding part 21 and a welding part 24 formed by extending backwards from the exposed part 23, the conductive terminals 2 comprise a base 201 made of copper materials, and in a semi-finished product of the conductive terminals 2, the contact part 22, the holding part 21, the exposed part 23 and the welding part 24 comprise a nickel layer 202 electroplated on the surface of the base 201; providing an insulating body 1, wherein the insulating body 1 is integrally formed outside the conductive terminal 2 to form a terminal module 20 together with the conductive terminal 2, the insulating body 1 comprises a base 11, a tongue plate 12 formed by extending forwards from the base 11 and a mounting part 13 formed by extending backwards from the base 11, the mounting part 13 is provided with a groove 131 penetrating through the upper surface and the lower surface thereof, the fixing part 21 is fixed on the base 11, the contact part 22 is exposed on the abutting surface 120 of the tongue plate 12, the exposure part 23 is exposed on the groove 131, and in the finished product of the conductive terminal 2, the exposure part 23 is a part of the surface of the base 201, in which the nickel layer 202 is removed in the groove 131, so that the surface of the base 201 is exposed; providing a housing 3, wherein the housing 3 is provided with a containing space 30 which penetrates through the front and back, the containing space 30 is arranged in the terminal module 20 from the back to the front, the base 11 is fixedly held in the containing space 30 and divides the containing space 30 into a butt joint cavity 301 positioned at the front end of the base 11 and a sealing cavity 302 positioned at the rear end of the base 11, the tongue plate 12 is positioned in the butt joint cavity 301, and the slot 131 is exposed in the sealing cavity 302; a waterproof member 4 is provided, and the waterproof member 4 is filled in the sealing cavity 302 and the slot 131 through a dispensing process to cover the exposed portion 23.
The foregoing is only some, but not all, embodiments of the present invention, and any equivalent modifications of the technical solution of the present invention will be covered by the claims of the present invention by a person of ordinary skill in the art from reading the present specification.
Claims (9)
1. The utility model provides an electric connector, includes the insulator, holds in the conductive terminal of insulator, cladding in the shell outside the insulator and set up in waterproof piece in the shell, the insulator has the base, the shell has the accommodation space that runs through from front to back, the base is held in the accommodation space and separates into the butt joint chamber that is located the base front end and the sealed chamber that is located the base rear end, the conductive terminal has the holding portion of holding in the base, extends from the holding portion and forms the contact portion that exposes in the accommodation space, extends from the holding portion backward and forms the exposure portion that exposes in the sealed chamber and extends from the welding portion of sealed chamber backward of exposure portion, its characterized in that: the conductive terminal comprises a base body made of copper materials, the contact part, the fixing part and the welding part of the conductive terminal comprise nickel layers electroplated on the surface of the base body, the surface of the base body corresponding to the exposure part is exposed in the sealing cavity, the waterproof piece is plugged in the sealing cavity and covers the exposure part, the contact part, the fixing part, the exposure part and the welding part of the conductive terminal comprise the nickel layers electroplated on the surface of the base body in a semi-finished product of the conductive terminal, and the exposure part is a part of the surface of the base body, which is exposed by removing the nickel layers from the surface of the base body.
2. The electrical connector of claim 1, wherein: the insulating body further comprises a tongue plate positioned in the butt joint cavity and a mounting part formed by extending the base backwards, the contact part is exposed on the butt joint surface of the tongue plate, the exposure part is arranged on the mounting part, the mounting part is provided with a groove exposing the exposure part in the sealing cavity, and the waterproof piece is filled in the sealing cavity through an epoxy resin dispensing process and is filled in the groove to cover the exposure part.
3. The electrical connector of claim 2, wherein: the mounting part comprises a containing section and a mounting section, wherein the containing section is formed by extending backwards from the base and is positioned in the sealing cavity, the mounting section is formed by extending backwards from the containing section and extends out of the sealing cavity, and the grooves penetrate through the upper surface and the lower surface of the containing section.
4. The electrical connector of claim 3, wherein: in the transverse direction perpendicular to the front-rear direction, the width of the accommodating section is smaller than the width of the sealing cavity and the width of the mounting section, and a notch covered by the waterproof piece is formed between the transverse two sides of the accommodating section and the transverse two sides of the mounting section.
5. The electrical connector of claim 1, wherein: the nickel layer on the surface of the substrate at the corresponding exposed part is removed by a nickel stripping agent which is prepared from sulfuric acid and hydrogen peroxide.
6. The electrical connector of claim 1, wherein: the nickel layer of the surface of the substrate at the corresponding exposed portion is removed by laser.
7. The electrical connector of claim 1, wherein: in the finished product of the conductive terminal, the contact portion, the holding portion and the welding portion further comprise a gold layer electroplated above the nickel layer.
8. The electrical connector of claim 2, wherein: the contact portion, the holding portion, the exposing portion and the welding portion of the conductive terminal include the nickel layer electroplated on the surface of the substrate, at least the contact portion further includes at least one of a gold layer or a rhodium ruthenium layer electroplated on the nickel layer, the semi-finished product of the conductive terminal is integrally formed in the insulating body, and the exposing portion is a portion of the surface of the substrate, in which the nickel layer is removed in the slot to expose the surface of the substrate.
9. A method of manufacturing an electrical connector, comprising the steps of:
providing at least one row of conductive terminals, wherein each conductive terminal comprises a fixing part, a contact part formed by extending forwards from the fixing part, an exposed part formed by extending backwards from the fixing part and a welding part formed by extending backwards from the exposed part, each conductive terminal comprises a base body made of copper materials, and the contact part, the fixing part, the exposed part and the welding part comprise nickel layers electroplated on the surfaces of the base bodies in a semi-finished product of the conductive terminal;
providing an insulating body, wherein the insulating body is integrally formed outside the conductive terminal to form a terminal module together with the conductive terminal, the insulating body comprises a base, a tongue plate formed by extending forwards from the base and a mounting part formed by extending backwards from the base, a slot is formed on the mounting part penetrating through the upper surface and the lower surface of the mounting part, the fixing part is fixed on the base, the contact part is exposed on the abutting surface of the tongue plate, the exposure part is exposed on the slot, and in a finished product of the conductive terminal, the exposure part is a part of the surface of the base body, in which the nickel layer is removed to expose the surface of the base body;
providing a shell, wherein the shell is provided with a containing space which is penetrated from front to back, the containing space is arranged in the terminal module from back to front, the base is fixedly held in the containing space and divides the containing space into a butt joint cavity positioned at the front end of the base and a sealing cavity positioned at the rear end of the base, the tongue plate is positioned in the butt joint cavity, and the groove is exposed in the sealing cavity;
and providing a waterproof piece, wherein the waterproof piece is filled in the sealing cavity through a dispensing process and is filled in the groove to cover the exposed part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010384967.XA CN113629437B (en) | 2020-05-09 | 2020-05-09 | Electric connector and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010384967.XA CN113629437B (en) | 2020-05-09 | 2020-05-09 | Electric connector and manufacturing method thereof |
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| CN113629437A CN113629437A (en) | 2021-11-09 |
| CN113629437B true CN113629437B (en) | 2024-02-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102088146A (en) * | 2009-12-04 | 2011-06-08 | 富港电子（东莞）有限公司 | Terminal and electroplating method thereof |
| AU2015100481A4 (en) * | 2014-04-14 | 2015-05-14 | Apple Inc. | Durable connector receptacles |
| CN205070026U (en) * | 2015-08-04 | 2016-03-02 | 连展科技（深圳）有限公司 | Board is to board plug connector and board to board socket connector |
| KR101753712B1 (en) * | 2017-01-16 | 2017-07-05 | 주식회사 제이앤티씨 | Waterproof connection terminals for electronic equipment |
| TW201809364A (en) * | 2016-03-31 | 2018-03-16 | 日新製鋼股份有限公司 | Automotive terminal |
| CN209860238U (en) * | 2019-06-19 | 2019-12-27 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4841272B2 (en) * | 2006-03-14 | 2011-12-21 | 日東電工株式会社 | Wiring circuit board and wiring circuit board connection structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102088146A (en) * | 2009-12-04 | 2011-06-08 | 富港电子（东莞）有限公司 | Terminal and electroplating method thereof |
| AU2015100481A4 (en) * | 2014-04-14 | 2015-05-14 | Apple Inc. | Durable connector receptacles |
| CN205070026U (en) * | 2015-08-04 | 2016-03-02 | 连展科技（深圳）有限公司 | Board is to board plug connector and board to board socket connector |
| TW201809364A (en) * | 2016-03-31 | 2018-03-16 | 日新製鋼股份有限公司 | Automotive terminal |
| KR101753712B1 (en) * | 2017-01-16 | 2017-07-05 | 주식회사 제이앤티씨 | Waterproof connection terminals for electronic equipment |
| CN209860238U (en) * | 2019-06-19 | 2019-12-27 | 富士康(昆山)电脑接插件有限公司 | Electrical connector |
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| CN113629437A (en) | 2021-11-09 |
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