CN108288781B - Plug connector formed by secondary molding and manufacturing method thereof - Google Patents
Plug connector formed by secondary molding and manufacturing method thereof Download PDFInfo
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- CN108288781B CN108288781B CN201810193927.XA CN201810193927A CN108288781B CN 108288781 B CN108288781 B CN 108288781B CN 201810193927 A CN201810193927 A CN 201810193927A CN 108288781 B CN108288781 B CN 108288781B
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- row
- molding
- row terminal
- terminal module
- insulating body
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- 238000000465 moulding Methods 0.000 title claims abstract description 203
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 238000003825 pressing Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 10
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052802 copper Inorganic materials 0.000 abstract description 7
- 239000010949 copper Substances 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 5
- UQMRAFJOBWOFNS-UHFFFAOYSA-N butyl 2-(2,4-dichlorophenoxy)acetate Chemical compound CCCCOC(=O)COC1=CC=C(Cl)C=C1Cl UQMRAFJOBWOFNS-UHFFFAOYSA-N 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011241 protective layer Substances 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
- H01R13/02—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
- 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
- H01R13/502—Bases; Cases composed of different pieces
- H01R13/504—Bases; Cases composed of different pieces different pieces being moulded, cemented, welded, e.g. ultrasonic, or swaged together
-
- 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
- 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
-
- 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
- H01R43/24—Assembling by moulding on contact members
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses a plug connector formed by secondary molding and a manufacturing method thereof, comprising a primary molding upper-row terminal module, a primary molding lower-row terminal module, a first insulating body and a shielding shell; the primary molding upper-row terminal module comprises an upper-row terminal and an upper-row second insulating body, and the primary molding lower-row terminal module comprises a lower-row terminal and a lower-row second insulating body; the connecting part of the upper-row terminal is embedded and formed in the upper-row second insulating body to form a one-time molding upper-row terminal module; the connecting part of the lower-row terminal is embedded and formed in the lower-row second insulating body to form a one-time molding lower-row terminal module; the primary molding upper-row terminal module and the primary molding lower-row terminal module are embedded and molded on the first insulating body; therefore, the secondary molding of the plug connector is realized, the phenomenon that the copper is exposed to cause the oxidation easily during the environmental test is effectively avoided, and the liquid is prevented from being in micro short circuit with the iron shell, the hook and the like during the liquid feeding.
Description
Technical Field
The invention relates to the connector field technology, in particular to a plug connector formed by secondary molding and a manufacturing method thereof.
Background
The plug connector in the prior art is generally manufactured by injection molding between a terminal and an insulating body only once, and can ensure normal assembly and work of a terminal structure, but the phenomenon that copper is exposed easily after the whole assembly exists, so that the copper is easily oxidized during environmental test, and a terminal material pressing hole easily appears, so that liquid enters the connector from the opening of the connector when the plug connector is abnormally used, and the liquid can be in micro short circuit with an iron shell, a hook and the like after being electrified, so that the connector cannot be continuously used.
Therefore, a new technology is required to be developed to solve the above-mentioned problems.
Disclosure of Invention
In view of the above, the present invention aims at overcoming the drawbacks of the prior art, and its primary object is to provide a plug connector formed by secondary molding and a method for manufacturing the same, which realize the secondary molding of the plug connector, effectively avoid the phenomenon that the copper is easily oxidized during environmental test due to copper exposure, and prevent micro-short circuit between liquid and iron shells, hooks, etc. during liquid feeding.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a plug connector formed by secondary molding comprises a primary molding upper-row terminal module, a primary molding lower-row terminal module, a first insulating body and a shielding shell;
the primary molding upper-row terminal module comprises an upper-row terminal and an upper-row second insulating body, and the primary molding lower-row terminal module comprises a lower-row terminal and a lower-row second insulating body; the upper row of terminals and the lower row of terminals are respectively provided with a contact part, a connecting part and a welding part from front to back; the connecting part of the upper-row terminal is embedded and formed in the upper-row second insulating body to form a one-time molding upper-row terminal module; the connecting part of the lower-row terminal is embedded and formed in the lower-row second insulating body to form a one-time molding lower-row terminal module;
the primary molding upper-row terminal module and the primary molding lower-row terminal module are embedded and molded on the first insulating body, and the shielding shell is coated outside the first insulating body.
As a preferable scheme, the first insulating body comprises a front side first insulating body and a rear side first insulating body which are mutually clamped in front and rear; the front side first insulating body is internally provided with an inserting cavity, and the rear side first insulating body comprises a first body and a second body which are arranged in an up-down split mode;
the first molding upper-row terminal module is embedded and molded in the first body to form a second molding upper-row terminal module; the first molding lower-row terminal module is embedded and molded in the second body to form a second molding lower-row terminal module;
a hook plate is arranged between the secondary molding upper-row terminal modules and the secondary molding lower-row terminal modules; the secondary molding upper-row terminal module, the hooking plate and the secondary molding lower-row terminal module are stacked to form a connector core module;
the connector core module is clamped on the rear side of the front first insulating body; the contact parts of the upper row of terminals and the contact parts of the lower row of terminals are exposed in the inserting cavity of the front side first insulating body.
As a preferable scheme, the surfaces of the contact part of the upper row of terminals and the contact part of the lower row of terminals are provided with corrosion-resistant protection layers.
As a preferable scheme, the back side of the front side first insulating body is concavely provided with a clamping groove, and correspondingly, the front side of the back side first insulating body is convexly provided with a clamping part; the clamping parts are clamped into the corresponding clamping grooves.
As a preferable scheme, the surfaces of the connecting part of the upper row of terminals and the connecting part of the lower row of terminals are coated with insulating layers.
As a preferable scheme, a plurality of first positioning columns are arranged below the first body, and a first positioning groove is formed in one side of each first positioning column; a plurality of second positioning columns are arranged above the second body, and a second positioning groove is formed in one side of each second positioning column; the first positioning columns are adapted to the corresponding second positioning grooves, and the second positioning grooves are adapted to the corresponding first positioning grooves.
As a preferable scheme, a positioning convex edge is arranged on the front side of the lower part of the first body in a left-right extending way, and a third positioning groove is correspondingly arranged on the front side of the upper part of the second body in a left-right extending way; the positioning convex edge is adapted to the third positioning groove.
As a preferable scheme, the primary molding upper-row terminal module and the primary molding lower-row terminal module are respectively provided with a primary molding terminal pressing hole;
the first body on the secondary molding upper-row terminal module seals the primary molding terminal pressing hole of the primary molding upper-row terminal module, and the second body on the secondary molding lower-row terminal module seals the primary molding terminal pressing hole of the primary molding lower-row terminal module;
the secondary molding upper-row terminal modules and the secondary molding lower-row terminal modules are respectively provided with a secondary molding terminal pressing hole; the secondary molding terminal pressing holes of the secondary molding upper-row terminal module are arranged corresponding to the upper-row second insulating body, and the upper-row terminals are not exposed to the secondary molding terminal pressing holes of the secondary molding upper-row terminal module;
the second molding terminal pressing hole of the second molding lower-row terminal module is arranged corresponding to the lower-row second insulating body, and the lower-row terminal is not exposed to the second molding terminal pressing hole of the second molding lower-row terminal module.
A manufacturing method of a plug connector formed by secondary molding comprises the following steps:
step one: respectively carrying out first molding on an upper-row terminal with an upper-row material belt and a lower-row terminal with a lower-row material belt to form a corresponding first-molding upper-row terminal module and a corresponding first-molding lower-row terminal module;
step two: cutting the upper row terminals of the primary-molding upper row terminal modules and the lower row terminals of the primary-molding lower row terminal modules respectively;
step three: performing second molding on the primary molding upper-row terminal module and the primary molding lower-row terminal module;
step four: and (5) installing a shielding shell.
In the third step, the primary molding upper row terminal module and the primary molding lower row terminal module are respectively molded in a secondary molding mode; the first insulating body comprises a front side first insulating body and a rear side first insulating body which are clamped with each other in the front-back direction; the front side first insulating body is internally provided with an inserting cavity, and the rear side first insulating body comprises a first body and a second body which are arranged in an up-down split mode; the first molding upper-row terminal module is embedded and molded in the first body to form a second molding upper-row terminal module; the first molding lower-row terminal module is embedded and molded in the second body to form a second molding lower-row terminal module;
then, a hook plate is arranged between the secondary molding upper-row terminal module and the secondary molding lower-row terminal module; the secondary molding upper-row terminal module, the hooking plate and the secondary molding lower-row terminal module are stacked to form a connector core module; clamping the connector core module on the rear side of the front side first insulating body; the contact part of the upper row of terminals and the contact part of the lower row of terminals are exposed in the plugging cavity of the front side first insulating body;
and step four, sleeving the shielding shell outside the connector core module and the front side first insulating body.
Compared with the prior art, the plug connector has obvious advantages and beneficial effects, and particularly, the technical scheme mainly comprises the steps of forming the primary molding upper-row terminal module on the upper-row second insulating body through the connection part of the upper-row terminal in an insert molding manner, forming the primary molding lower-row terminal module on the lower-row second insulating body through the connection part of the lower-row terminal in an insert molding manner, and forming the primary molding upper-row terminal module and the primary molding lower-row terminal module on the first insulating body in an insert molding manner, so that the secondary molding of the plug connector is realized, the phenomenon that the plug connector is easy to oxidize during environment test due to copper exposure is effectively avoided, and micro short circuits of liquid, iron shells, hooks and the like during liquid feeding are prevented.
In order to more clearly illustrate the structural features, technical means, and specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the specific embodiments.
Drawings
FIG. 1 is a schematic perspective view of the overall structure of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of another overall structure of an embodiment of the present invention;
FIG. 3 is a first exploded view of an embodiment of the present invention;
FIG. 4 is a second exploded view of an embodiment of the present invention;
FIG. 5 is a third exploded view of an embodiment of the present invention;
FIG. 6 is a fourth exploded view of an embodiment of the present invention;
FIG. 7 is a fifth exploded view of an embodiment of the present invention;
FIG. 8 is a cross-sectional view of an embodiment of the present invention;
FIG. 9 is a schematic view of a terminal assembly according to an embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view of a front section area of an embodiment of the present invention.
The attached drawings are used for identifying and describing:
10. first insulating body 11, front side first insulating body
111. Clamping groove 12, rear side first insulating body
121. Clamping part 122, first body
1221. First positioning column 1222 and first positioning groove
1223. Positioning convex edge 123, second body
1231. Second positioning column 1232 and second positioning groove
1233. Third positioning groove 20 and upper row terminal
21. Contact portion 22, connection portion
23. Welded part 30, lower row terminal
31. Contact portion 32, connection portion
33. Welded portion 40, shield case
50. Hook plate 51 and main body
52. Plug wall 53, grounding wall
54. Transition hole 60, upper row second insulator
61. First upper row of projections 62, second upper row of projections
70. Lower row second insulator 71, first lower row convex portion
72. Second lower row protrusion 101, one-time molding upper row terminal module
102. Primary molding lower-row terminal module 103 and secondary molding upper-row terminal module
104. Secondary molding lower row terminal module 105 and connector core module
106. Primary molding terminal pressing hole 107 and secondary molding terminal pressing hole
201. Plug cavity 202 and plug groove
203. Upper discharge belt 204 and lower discharge belt
301. Anterior zone 302, intermediate zone
303. Rear region 304, insulating layer.
Detailed Description
Referring to fig. 1 to 10, specific structures of embodiments of the present invention are shown.
Wherein the plug connector comprises a primary molding upper row terminal module 101, a primary molding lower row terminal module 102, a first insulating body 10 and a shielding shell 40; the primary molding upper-row terminal module 101 includes an upper-row terminal 20 and an upper-row second insulating body 60, and the primary molding lower-row terminal module 102 includes a lower-row terminal 30 and a lower-row second insulating body 70; the upper row of terminals 20 and the lower row of terminals 30 are provided with contact parts, connecting parts and welding parts from front to back; the connection portion of the upper row terminal 20 is insert-molded in the upper row second insulating body 60 to form a one-time molding upper row terminal module 101; the connection portion of the lower row terminal 30 is insert-molded in the lower row second insulating body 70 to form a one-time molding lower row terminal module 102; the primary molding upper-row terminal module 101 and the primary molding lower-row terminal module 102 are insert molded on the first insulating body 10, and the shielding shell 40 is wrapped outside the first insulating body 10.
The first insulating body 10 comprises a front side first insulating body 11 and a rear side first insulating body 12 which are mutually clamped in front and rear; the front side first insulating body 11 is internally provided with a plug-in cavity 201, and the rear side first insulating body 12 comprises a first body 122 and a second body 123 which are arranged in a split mode up and down; the primary molding upper-row terminal module 101 is insert molded in the first body 122 to form a secondary molding upper-row terminal module 103; the primary molding lower-row terminal module 102 is insert molded in the second body 123 to form a secondary molding lower-row terminal module 104; a hook plate 50 is arranged between the secondary molding upper-row terminal modules 103 and the secondary molding lower-row terminal modules 104; the secondary molding upper row terminal module 103, the hooking plate 50 and the secondary molding lower row terminal module 104 are stacked to form a connector core module 105; the connector core module 105 is clamped on the rear side of the front first insulating body 11; the contact portions of the upper row terminals 20 and the contact portions of the lower row terminals 30 are exposed in the plugging cavities 201 of the front side first insulating body 11; the hook plate 50 comprises a main body 51, and a plugging wall 52 and a grounding wall 53 which are respectively integrally formed on the front side and the rear side of the main body 51; the front first insulating body 11 is provided with a plugging slot 202, the plugging wall 52 is inserted into the plugging slot 202 from back to front, and the grounding wall 53 is exposed outside the rear first insulating body 12.
The rear side of the front first insulating body 11 is concavely provided with a clamping groove 111, and correspondingly, the front side of the rear first insulating body 12 is convexly provided with a clamping part 121; the clamping parts 121 are clamped into the corresponding clamping grooves 111; the clamping groove 111 comprises an upper clamping groove 111 and a lower clamping groove 111, wherein the upper clamping groove 111 and the lower clamping groove 111 are respectively provided with an upward opening and a downward opening; the clamping part 121 comprises an upper clamping part 121 and a lower clamping part 121; the upper clamping parts 121 are formed on the first body 122 of the secondary moving upper terminal module 103 and are positioned at the left and right ends of the upper side of the first body 122; the lower clamping parts 121 are formed on the second body 123 of the secondary clamping lower terminal module 104 and are positioned at the left and right ends of the lower side of the second body 123; the upper clamping portions 121 are adapted to the corresponding upper clamping grooves 111 to form assembly and fixation, and the lower clamping portions 121 are adapted to the corresponding lower clamping grooves 111 to form assembly and fixation.
A plurality of first positioning columns 1221 are arranged below the first body 122, and a first positioning groove 1222 is arranged at one side of each first positioning column 1221; a plurality of second positioning columns 1231 are arranged above the second body 123, and a second positioning groove 1232 is arranged on one side of each second positioning column 1231; the first positioning posts 1221 fit within the corresponding second positioning slots 1232, and the second positioning slots 1232 fit within the corresponding first positioning slots 1222; a positioning flange 1223 extends left and right from the lower front side of the first body 122, and correspondingly, a third positioning groove 1233 extends left and right from the upper front side of the second body 123; the positioning flange 1223 fits within the third positioning slot 1233; the hanger plate 50 is further provided with a plurality of transition holes 54, and the first positioning posts 1221 and the second positioning posts 1231 pass through the respective transition holes 54.
The primary molding upper-row terminal module 101 and the primary molding lower-row terminal module 102 are respectively provided with a primary molding terminal pressing hole 106; the first body 122 on the secondary molding upper terminal module 103 seals the primary molding terminal pressing hole 106 of the primary molding upper terminal module 101, and the second body 123 on the secondary molding lower terminal module 104 seals the primary molding terminal pressing hole 106 of the primary molding lower terminal module 102; the secondary molding upper-row terminal modules 103 and the secondary molding lower-row terminal modules 104 are respectively provided with a secondary molding terminal pressing hole 107; the secondary molding terminal pressing holes 107 of the secondary molding upper terminal module 103 are provided corresponding to the upper second insulating body 60, and the upper terminals 20 are not exposed to the secondary molding terminal pressing holes 107 of the secondary molding upper terminal module 103; the secondary molding terminal press hole 107 of the secondary molding lower terminal module 104 is provided corresponding to the lower second insulating body 70, and the lower terminal 30 is not exposed to the secondary molding terminal press hole 107 of the secondary molding lower terminal module 104.
A first upper-row convex portion 61 and a first lower-row convex portion 71 are respectively provided on the upper side of the upper-row second insulating body 60 and the lower side of the upper-row second insulating body 60 in a convex manner; the first upper-row convex portion 61 and the first lower-row convex portion 71 are respectively provided on the front sides of the upper-row second insulating body 60 and the upper-row second insulating body 60; the first upper protruding portion 61 and the first lower protruding portion 71 are respectively exposed on the upper surface of the corresponding first body 122 and the lower surface of the second body 123; a second upper row convex part 62 and a second lower row convex part 72 are respectively and convexly arranged on the upper side of the upper row second insulating body 60 and the lower side of the upper row second insulating body 60; the second upper-row protruding parts 62 and the second lower-row protruding parts 72 are respectively provided on the upper-row second insulating body 60 and the rear side of the upper-row second insulating body 60; the second upper-row protruding portion 62 and the second lower-row protruding portion 72 are respectively disposed below the secondary molding terminal pressing hole 107 of the secondary molding upper-row terminal module 103 and above the secondary molding terminal pressing hole 107 of the secondary molding lower-row terminal module 104.
As shown in fig. 9, taking the upper row of terminals 20 as an example, the surfaces of the contact portions 21 of the upper row of terminals 20 and the contact portions 31 of the lower row of terminals 30 are provided with corrosion-resistant protection layers; and, the surfaces of the connection portion 22 of the upper row of terminals 20 and the connection portion 32 of the lower row of terminals 30 are coated with an insulating layer 304; the connection portion 22 of the upper row of terminals 20 and the connection portion 32 of the lower row of terminals 30 are respectively a front section area 301, a middle section area 302 and a rear section area 303 from front to back; the connection portion 22 of the upper row of terminals 20 and the connection portion 32 of the lower row of terminals 30 each have a left side surface, a right side surface, a top surface and a bottom surface; the front end of the front section area 301 of the connecting part is connected with the contact part, and the rear end of the rear section area 303 of the connecting part is connected with the welding part; the left side surface, the right side surface, the top surface and the bottom surface of the front section area 301 are coated with an insulating layer 304; the front section 301 is exposed to the front side of the rear first insulating body 12 and extends into the front first insulating body 11; therefore, through the corrosion-resistant protective layer, the corrosion resistance of the terminal leakage area can be improved, so that the corrosion resistance of environmental test and power-on test is improved; through this insulating layer 304, the conducting layer that forms between the little clearance of terminal each other has effectively been isolated to avoid the mutual influence of conducting layer between the terminal, guaranteed normal work, improved the reliability in use of connector.
In addition, in the present embodiment, the upper row of terminals 20 is set to 7PIN, the lower row of terminals 30 is set to PIN, and of course, the upper row of terminals 20 and the lower row of terminals 30 may be set to other numbers according to actual situations, and the description thereof will be omitted.
The welded portions 23 and 33 of the upper and lower terminals 20 and 30 are exposed at the rear end of the shield case 40, and the upper and lower discharge belts 203 and 204 are connected to the welded portions 23 and 33 of the upper and lower terminals 20 and 30, respectively.
The manufacturing process is approximately as follows:
step one: the upper row terminal 20 with the upper row material belt 203 and the lower row terminal 30 with the lower row material belt 204 are respectively subjected to first molding to form a corresponding primary molding upper row terminal module 101 and a primary molding lower row terminal module 102;
step two: cutting the upper row terminals 20 of the primary molding upper row terminal modules 101 and the lower row terminals 30 of the primary molding lower row terminal modules 102 respectively;
step three: performing second molding on the primary molding upper-row terminal module 101 and the primary molding lower-row terminal module 102; here, the primary molding upper terminal module 101 and the primary molding lower terminal module 102 are respectively subjected to secondary molding; of course, the primary molding upper terminal module 101 and the primary molding lower terminal module 102 may be simultaneously molded integrally with each other by secondary molding; then, the secondary molding upper-row terminal module 103, the hooking plate 50, and the secondary molding lower-row terminal module 104 are stacked to form a connector core module 105; the connector core module 105 is clamped on the rear side of the front side first insulating body 11; the contact portion 21 of the upper row terminal 20 and the contact portion 31 of the lower row terminal 30 are exposed in the plugging cavity 201 of the front side first insulating body 11;
step four: the shielding shell 40 is sleeved outside the connector core module 105 and the front side first insulating body 11; finally, the upper and lower discharge belts 203, 204 are removed.
In summary, the design key point of the present invention is that the connection portion of the upper row of terminals is formed on the upper row of second insulation body by insert molding, the connection portion of the upper row of terminal modules and the lower row of terminals is formed on the lower row of second insulation body by insert molding, and the first row of terminal modules are formed on the first insulation body by insert molding, thereby realizing the second molding of the plug connector, effectively avoiding the phenomenon that copper is easily oxidized during environmental test, and preventing micro-short circuits of liquid, iron shells, hooks, etc. during liquid feeding.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical principles of the present invention are still within the scope of the technical solutions of the present invention.
Claims (9)
1. A plug connector formed by secondary molding, characterized in that: the device comprises a primary molding upper-row terminal module, a primary molding lower-row terminal module, a first insulating body and a shielding shell;
the primary molding upper-row terminal module comprises an upper-row terminal and an upper-row second insulating body, and the primary molding lower-row terminal module comprises a lower-row terminal and a lower-row second insulating body; the upper row of terminals and the lower row of terminals are respectively provided with a contact part, a connecting part and a welding part from front to back; the connecting part of the upper-row terminal is embedded and formed in the upper-row second insulating body to form a one-time molding upper-row terminal module; the connecting part of the lower-row terminal is embedded and formed in the lower-row second insulating body to form a one-time molding lower-row terminal module;
the primary molding upper-row terminal module and the primary molding lower-row terminal module are embedded and molded on the first insulating body, and the shielding shell is coated outside the first insulating body;
the first insulating body comprises a front side first insulating body and a rear side first insulating body which are clamped with each other in the front-back direction; the front side first insulating body is internally provided with an inserting cavity, and the rear side first insulating body comprises a first body and a second body which are arranged in an up-down split mode;
the first molding upper-row terminal module is embedded and molded in the first body to form a second molding upper-row terminal module; the first molding lower-row terminal module is embedded and molded in the second body to form a second molding lower-row terminal module;
a hook plate is arranged between the secondary molding upper-row terminal modules and the secondary molding lower-row terminal modules; the secondary molding upper-row terminal module, the hooking plate and the secondary molding lower-row terminal module are stacked to form a connector core module;
the connector core module is clamped on the rear side of the front first insulating body; the contact parts of the upper row of terminals and the contact parts of the lower row of terminals are exposed in the inserting cavity of the front side first insulating body.
2. The secondarily molded plug connector of claim 1, wherein: the surfaces of the contact part of the upper row of terminals and the contact part of the lower row of terminals are respectively provided with an anti-corrosion protection layer.
3. The secondarily molded plug connector of claim 1, wherein: the rear side of the front side first insulating body is concavely provided with a clamping groove, and correspondingly, the front side of the rear side first insulating body is convexly provided with a clamping part; the clamping parts are clamped into the corresponding clamping grooves.
4. The secondarily molded plug connector of claim 1, wherein: and the surfaces of the connecting part of the upper row of terminals and the connecting part of the lower row of terminals are coated with insulating layers.
5. The secondarily molded plug connector of claim 1, wherein: a plurality of first positioning columns are arranged below the first body, and a first positioning groove is formed in one side of each first positioning column; a plurality of second positioning columns are arranged above the second body, and a second positioning groove is formed in one side of each second positioning column; the first positioning columns are adapted to the corresponding second positioning grooves, and the second positioning grooves are adapted to the corresponding first positioning grooves.
6. The secondarily molded plug connector of claim 1, wherein: a positioning convex edge is arranged on the front side of the lower part of the first body in a left-right extending way, and a third positioning groove is correspondingly arranged on the front side of the upper part of the second body in a left-right extending way; the positioning convex edge is adapted to the third positioning groove.
7. The secondarily molded plug connector of claim 1, wherein: the primary molding upper-row terminal modules and the primary molding lower-row terminal modules are respectively provided with a primary molding terminal pressing hole;
the first body on the secondary molding upper-row terminal module seals the primary molding terminal pressing hole of the primary molding upper-row terminal module, and the second body on the secondary molding lower-row terminal module seals the primary molding terminal pressing hole of the primary molding lower-row terminal module;
the secondary molding upper-row terminal modules and the secondary molding lower-row terminal modules are respectively provided with a secondary molding terminal pressing hole; the secondary molding terminal pressing holes of the secondary molding upper-row terminal module are arranged corresponding to the upper-row second insulating body, and the upper-row terminals are not exposed to the secondary molding terminal pressing holes of the secondary molding upper-row terminal module;
the second molding terminal pressing hole of the second molding lower-row terminal module is arranged corresponding to the lower-row second insulating body, and the lower-row terminal is not exposed to the second molding terminal pressing hole of the second molding lower-row terminal module.
8. A method of making a two-shot molded plug connector as defined in claim 1, wherein: the method comprises the following steps:
step one: respectively carrying out first molding on an upper-row terminal with an upper-row material belt and a lower-row terminal with a lower-row material belt to form a corresponding first-molding upper-row terminal module and a corresponding first-molding lower-row terminal module;
step two: cutting the upper row terminals of the primary-molding upper row terminal modules and the lower row terminals of the primary-molding lower row terminal modules respectively;
step three: performing second molding on the primary molding upper-row terminal module and the primary molding lower-row terminal module;
step four: and (5) installing a shielding shell.
9. The method for manufacturing the plug connector formed by the secondary molding according to claim 8, wherein:
step three, performing secondary molding on the primary molding upper-row terminal module and the primary molding lower-row terminal module respectively; the first insulating body comprises a front side first insulating body and a rear side first insulating body which are clamped with each other in the front-back direction; the front side first insulating body is internally provided with an inserting cavity, and the rear side first insulating body comprises a first body and a second body which are arranged in an up-down split mode; the first molding upper-row terminal module is embedded and molded in the first body to form a second molding upper-row terminal module; the first molding lower-row terminal module is embedded and molded in the second body to form a second molding lower-row terminal module;
then, a hook plate is arranged between the secondary molding upper-row terminal module and the secondary molding lower-row terminal module; the secondary molding upper-row terminal module, the hooking plate and the secondary molding lower-row terminal module are stacked to form a connector core module; clamping the connector core module on the rear side of the front side first insulating body; the contact part of the upper row of terminals and the contact part of the lower row of terminals are exposed in the plugging cavity of the front side first insulating body;
and step four, sleeving the shielding shell outside the connector core module and the front side first insulating body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810193927.XA CN108288781B (en) | 2018-03-09 | 2018-03-09 | Plug connector formed by secondary molding and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810193927.XA CN108288781B (en) | 2018-03-09 | 2018-03-09 | Plug connector formed by secondary molding and manufacturing method thereof |
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| CN108288781A CN108288781A (en) | 2018-07-17 |
| CN108288781B true CN108288781B (en) | 2023-10-24 |
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| CN110672998B (en) * | 2019-10-17 | 2022-08-23 | 上海工艺美术职业学院 | Conduction and withstand voltage test method and conduction and withstand voltage test assembly of connector |
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| CN204441624U (en) * | 2015-03-13 | 2015-07-01 | 东莞宇球电子股份有限公司 | Electric connector |
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| TWM511687U (en) * | 2014-12-04 | 2015-11-01 | Foxconn Interconnect Technology Ltd | Electrical connector |
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| CN207994134U (en) * | 2018-03-09 | 2018-10-19 | 东莞市泰康电子科技有限公司 | The secondary molding pin connectors of molding |
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| TWM511687U (en) * | 2014-12-04 | 2015-11-01 | Foxconn Interconnect Technology Ltd | Electrical connector |
| CN204441624U (en) * | 2015-03-13 | 2015-07-01 | 东莞宇球电子股份有限公司 | Electric connector |
| CN204651552U (en) * | 2015-05-22 | 2015-09-16 | 东莞市勒姆精密电子有限公司 | Type-C electric connector |
| CN205488687U (en) * | 2015-12-22 | 2016-08-17 | 番禺得意精密电子工业有限公司 | Electric connector |
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