CN106654669B - Electric connector and manufacturing method thereof - Google Patents

Electric connector and manufacturing method thereof Download PDF

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Publication number
CN106654669B
CN106654669B CN201710084914.4A CN201710084914A CN106654669B CN 106654669 B CN106654669 B CN 106654669B CN 201710084914 A CN201710084914 A CN 201710084914A CN 106654669 B CN106654669 B CN 106654669B
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China
Prior art keywords
terminal group
terminal
middle plate
metal middle
metal
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CN201710084914.4A
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CN106654669A (en
Inventor
吕雷
李亚勇
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Shenzhen Everwin Precision Technology Co Ltd
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Shenzhen Everwin Precision Technology Co Ltd
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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
    • 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
    • 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
    • H01R13/648—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
    • H01R43/20—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

Abstract

An electric connector comprises a first terminal group, a second terminal group, a metal middle plate clamped between the first terminal group and the second terminal group and contacted with the first terminal group and the second terminal group in a mutual clinging manner, and an insulating body for injection molding the first terminal group, the second terminal group and the metal middle plate into a whole, wherein insulating layers are respectively formed on two surfaces of the metal middle plate contacted with the first terminal group and the second terminal group so as to electrically isolate the metal middle plate from the first terminal group and the second terminal group. This application electric connector is Type C USB socket, and it is higher to bear electric current, and the manufacturing procedure is simpler.

Description

Electric connector and manufacturing method thereof
Technical Field
The application relates to the field of electric connectors, in particular to a Type C Type USB socket.
Background
In order to provide stronger functional requirements, the Type C Type USB connector provides the combination of up to 24 conductive terminals, the conductive terminals of the Type C Type USB socket are symmetrically arranged in an upper row and a lower row to support positive and negative insertion, a shielding metal plate is clamped between the upper row of terminals and the lower row of terminals for providing good high-speed transmission performance and enhancing the strength of a butt joint tongue part, and the conductive terminals need to be ensured not to contact the shielding metal plate in a limited space, so that injection molding operation needs to be carried out for 3-4 times during manufacturing, and the manufacturing cost is greatly increased.
Disclosure of Invention
In view of the above, it is desirable to provide an electrical connector and a method for manufacturing the same that is simple and low in cost.
In order to solve the above technical problem, the present application provides an electrical connector, including a first terminal set, a second terminal set, a metal middle plate clamped between the first and second terminal sets and in mutual close contact, and an insulation body in which the first and second terminal sets and the metal middle plate are injection molded into a whole, wherein insulation layers are respectively formed on two surfaces of the metal middle plate in contact with the first and second terminal sets so as to electrically isolate the metal middle plate from the first and second terminal sets.
Preferably, the surfaces of the first terminal group and the second terminal facing the metal middle plate are formed with insulating layers.
Preferably, one side of a metal plate material used for forming the first and second terminal groups by stamping is processed to form an insulating layer, and the metal plate material provided with the insulating layer is formed by stamping to form the first and second terminal groups.
Preferably, the insulating body comprises a base part and a butt joint part formed by extending forwards from the base part.
Preferably, the metal middle plate includes a main body portion, fastening grooves formed on both lateral sides of the main body portion, and a welding portion extending from a rear end of the main body portion.
Preferably, the metal middle plate is subjected to surface insulation treatment integrally, and then the insulation layer at the position of the buckling groove is scraped off, so that the buckling groove is in a conductive state.
Preferably, each of the conductive terminals of the first and second terminal sets includes a holding portion, a contact portion extending forward from the holding portion and exposed to the upper and lower surfaces of the mating portion of the insulating body, and a solder tail extending backward from the holding portion.
Preferably, the thickness of the metal middle plate plus the thickness of the first terminal group and the second terminal group is 0.70mm, wherein the thickness of the metal middle plate is 0.10mm, and the thickness of the first terminal group and the thickness of the second terminal group are respectively 0.30 mm.
Preferably, the thicknesses of the metal middle plate and the first and second terminal groups are 0.70mm, the thicknesses of the metal middle plate and the insulating layer thereof are 0.20mm, and the thicknesses of the first and second terminal groups are 0.25mm respectively.
In order to solve the above technical problem, the present application further provides a method for manufacturing an electrical connector, including the following steps: providing a metal middle plate, a first terminal group and a second terminal group, wherein insulating layers are arranged on the upper surface and the lower surface of the metal middle plate; respectively placing the first terminal group and the second terminal group on the upper surface and the lower surface of the metal middle plate and tightly clamping the two terminal groups; and positioning the first terminal group and the second terminal group which are clamped up and down and tightly attached to the metal middle plate in an injection mold for injection molding to form an insulating body which integrally holds the metal middle plate, the first terminal group and the second terminal group.
The utility model provides a Type C Type USB socket is in the upper and lower surface treatment of metal medium plate forms the insulating layer, perhaps is in first, second terminal group orientation one side surface treatment of metal medium plate forms the insulating layer. The first terminal group and the second terminal group can be directly contacted and attached to the metal middle plate, and are directly attached and fixed during injection molding, so that one-time injection molding can be easily realized, multiple injection molding operations are not needed, and the manufacturing cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
Fig. 1 is a perspective assembly view of an electrical connector according to the present application;
fig. 2 is a perspective assembly view of the upper and lower rows of conductive terminals and the metal middle plate of the electrical connector of the present application;
FIG. 3 is a top view of the upper and lower rows of conductive terminals of the electrical connector of the present application;
fig. 4 is a perspective view of a metal middle plate of the electrical connector of the present application;
FIG. 5 is a cross-sectional view of the present application taken along the line A-A shown in FIG. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and 2, the electrical connector of the present application is a Type C USB socket, and includes a first terminal set 20, a second terminal set 30, a metal middle plate 40 clamped between the first and second terminal sets 20,30, and an insulation body 10 formed by injection molding the first and second terminal sets 20,30 and the metal middle plate 40 into a whole.
The insulating body 10 includes a base 11, a butt portion 12 formed by extending from the base 11 forward, and a positioning portion 13 formed by extending from the base 11 backward.
The metal middle plate 40 includes a main body 41, fastening grooves 43 formed on two lateral sides of the main body 41, and a welding portion 42 extending from the rear end of the main body 41, wherein a notch 44 is formed at the front end of the main body 41 to facilitate the flow molding of the insulation body 10 by molten plastic in the vertical direction.
The first terminal group 20 and the second terminal group 30 are respectively located on two opposite surfaces of the middle metal plate 40 and are in close contact with the surface of the middle metal plate 40. Each of the conductive terminals of the first and second terminal sets 20,30 includes a holding portion 21, a contact portion 22 extending forward from the holding portion 21 and exposed to the upper and lower surfaces of the mating portion 12 of the insulative housing 10, and a solder leg 23 extending backward from the holding portion 21 and fixed to the positioning portion 13 of the insulative housing 10. The solder fillets 23 of the first terminal set 20 and the second terminal set 30 are arranged in two rows in the transverse direction, and the soldering surfaces are on the same plane. The first terminal set 20 forms a bent portion 24 between the solder tail 23 and the holding portion 21, so that the solder tail 23 of the first terminal set 20 and the solder tail 23 of the second terminal set 30 are staggered with each other, so that the tapes connecting the solder tails 23 of the first terminal set 20 and the second terminal set 30 do not collide with each other in the inserting and extracting direction any more, and the effect of one-step injection molding is achieved.
Insulating layers are formed on the upper and lower surfaces of the metal middle plate 40, or insulating layers are formed on the surfaces of the first terminal group 20 and the second terminal 30 facing the metal middle plate 40, or insulating layers are formed on the upper and lower surfaces of the metal middle plate 40 and the surfaces of the first terminal group 20 and the second terminal 30 facing the metal middle plate 40. The metal middle plate 40 is not covered by the insulating layer at the positions of the fastening grooves 43 at the two lateral sides and is in a conductive state.
The insulating layer may be implemented by various methods, for example, if the metal middle plate 40 is made of aluminum or an aluminum alloy, an anodic oxidation treatment may be performed on the surface of the metal middle plate 40 to form an insulating oxide film. If the metal middle plate 40 is made of steel, the surface of the metal middle plate 40 may be phosphated to form an insulating phosphate film. Besides the above method, an insulating layer may be formed on the surface of the metal middle plate 40 by electroplating, chemical plating, vapor deposition, or the like. Similarly, the insulating layer can be formed on the surface of the first and second terminal sets 20 and 30 facing the metal middle plate 40 by the same technique.
The metal middle plate 40 may be subjected to surface insulation treatment, and then the insulation layer at the position of the fastening groove 43 is scraped off. The first and second terminal sets 20,30 may be formed by performing an insulation process on one side surface of a plate, and then performing a stamping process to form the first and second terminal sets 20, 30.
The thickness of the metal middle plate 40 plus the first and second terminal sets 20,30 is 0.70mm, and the thickness scheme of the metal middle plate 40 and the first and second terminal sets 20,30 has the following two optimal schemes: the thickness of the metal middle plate 40 and the insulating layer thereof is 0.10mm, and the thickness of the first and second terminal sets 20 and 30 is 0.30mm, so that the power terminals of the first and second terminal sets 20 and 30 can pass larger current to provide a foundation for the quick charging of the intelligent terminal; or the thickness of the metal middle plate 40 and the insulating layer thereof is 0.20mm, and the thickness of the first and second terminal sets 20 and 30 is 0.25mm, so that the metal middle plate 40 has higher strength, and is not easy to damage in the plugging process.
The manufacturing method of the electric connector comprises the following steps:
providing a metal middle plate 40, a first terminal group 20 and a second terminal group 30, wherein insulating layers are arranged on the upper surface and the lower surface of the metal middle plate 40;
respectively placing the first and second terminal groups 20,30 on the upper and lower surfaces of the metal middle plate 40 and tightly clamping the two surfaces;
the first and second terminal sets 20,30 clamped up and down and tightly attached to the metal middle plate 40 are positioned in an injection mold for injection molding to form the insulation body 10 which integrally holds the metal middle plate 40, the first and second terminal sets 20, 30.
The Type C USB socket of the present application forms an insulating layer on the upper and lower surfaces of the metal middle plate 40, or on one side of the first and second terminal sets 20 and 30 facing the metal middle plate 40. The first and second terminal sets 20,30 can directly contact and tightly attach to the metal middle plate 40, and when the injection molding is performed, the first and second terminal sets 20,30 are directly and tightly attached and fixed, so that the injection molding can be easily realized at one time without performing multiple injection molding operations, and the manufacturing cost is reduced.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims (9)

1. An electric connector is characterized by comprising a first terminal group, a second terminal group, a metal middle plate clamped between the first terminal group and the second terminal group and contacted with the first terminal group and the second terminal group in a mutual clinging manner, and an insulating body for molding the first terminal group, the second terminal group and the metal middle plate into a whole, wherein insulating layers are respectively formed on two surfaces of the metal middle plate contacted with the first terminal group and the second terminal group so as to enable the metal middle plate and the first terminal group and the second terminal group to be electrically isolated from each other; the first terminal group and the second terminal group are formed by stamping metal plates; the first terminal group and the second terminal group are directly and tightly fixed on the metal middle plate, so that one-time injection molding is realized; each conductive terminal of the first terminal set and the second terminal set comprises a holding part, a contact part extending forwards from the holding part and a welding foot extending backwards from the holding part; the welding feet of the first terminal group and the second terminal group are arranged in two rows in the transverse direction, and the welding surfaces are positioned on the same plane; the first terminal set forms a bending part between the welding foot and the fixing part so that the welding foot of the first terminal set and the welding foot of the second terminal set are staggered.
2. The electrical connector of claim 1, wherein the surfaces of the first and second terminals facing the metal middle plate are formed with an insulating layer.
3. The electrical connector of claim 2, wherein one side of the metal plate material for forming the first and second terminal sets by punching is provided with an insulating layer, and the metal plate material provided with the insulating layer is formed by punching to form the first and second terminal sets.
4. The electrical connector of claim 1, wherein the dielectric body includes a base portion, and a mating portion extending forwardly from the base portion.
5. The electrical connector as claimed in claim 4, wherein the metal middle plate comprises a main body portion, a locking groove formed on two lateral sides of the main body portion, and a welding portion extending from a rear end of the main body portion.
6. The electrical connector as claimed in claim 5, wherein the metal middle plate is first subjected to surface insulation treatment and then the insulation layer at the position of the locking groove is scraped off to make the locking groove in a conductive state.
7. The electrical connector of claim 1, wherein the thickness of the metal midplane plus the first and second terminal sets is 0.70mm, wherein the thickness of the metal midplane is 0.10mm, and the thickness of the first and second terminal sets is 0.30mm, respectively.
8. The electrical connector of claim 1, wherein the thickness of the metal middle plate plus the first and second terminal sets is 0.70mm, wherein the thickness of the metal middle plate and the insulating layer thereof is 0.20mm, and the thickness of the first and second terminal sets is 0.25mm, respectively.
9. A method of manufacturing an electrical connector, comprising the steps of:
providing a metal middle plate, a first terminal group and a second terminal group, wherein insulating layers are arranged on the upper surface and the lower surface of the metal middle plate, and the first terminal group and the second terminal group are formed by stamping metal plates;
the first terminal group and the second terminal group are respectively arranged on the upper surface and the lower surface of the metal middle plate and are directly and closely fixed to the metal middle plate; each conductive terminal of the first terminal set and the second terminal set comprises a holding part, a contact part extending forwards from the holding part and a welding foot extending backwards from the holding part; the welding feet of the first terminal group and the second terminal group are arranged in two rows in the transverse direction, and the welding surfaces are positioned on the same plane; the first terminal set forms a bending part between the welding leg and the fixing part so that the welding leg of the first terminal set and the welding leg of the second terminal set are staggered;
and positioning the first terminal group and the second terminal group which are clamped up and down and tightly attached to the metal middle plate in an injection mold for one-time injection molding to form an insulating body which integrally holds the metal middle plate, the first terminal group and the second terminal group.
CN201710084914.4A 2017-02-16 2017-02-16 Electric connector and manufacturing method thereof Active CN106654669B (en)

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Application Number Priority Date Filing Date Title
CN201710084914.4A CN106654669B (en) 2017-02-16 2017-02-16 Electric connector and manufacturing method thereof

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Application Number Priority Date Filing Date Title
CN201710084914.4A CN106654669B (en) 2017-02-16 2017-02-16 Electric connector and manufacturing method thereof

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CN106654669A CN106654669A (en) 2017-05-10
CN106654669B true CN106654669B (en) 2020-01-24

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204885479U (en) * 2015-07-06 2015-12-16 东莞讯滔电子有限公司 Electric connector
CN205921159U (en) * 2016-06-30 2017-02-01 深圳君泽电子有限公司 USB socket connector
CN206541974U (en) * 2017-02-16 2017-10-03 深圳市长盈精密技术股份有限公司 Electric connector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203445352U (en) * 2013-06-28 2014-02-19 富士康(昆山)电脑接插件有限公司 Electric connector
CN104577417B (en) * 2013-10-21 2017-05-24 富士康(昆山)电脑接插件有限公司 Electric connector
CN104882696A (en) * 2015-06-05 2015-09-02 昆山全方位电子科技有限公司 USB connector based on TypeC
CN204947238U (en) * 2015-07-07 2016-01-06 番禺得意精密电子工业有限公司 Electric connector
CN205452597U (en) * 2015-12-21 2016-08-10 番禺得意精密电子工业有限公司 Socket connector and connector combination

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204885479U (en) * 2015-07-06 2015-12-16 东莞讯滔电子有限公司 Electric connector
CN205921159U (en) * 2016-06-30 2017-02-01 深圳君泽电子有限公司 USB socket connector
CN206541974U (en) * 2017-02-16 2017-10-03 深圳市长盈精密技术股份有限公司 Electric connector

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