CN110854589B - Waterproof USB2.0 connector ground structure - Google Patents
Waterproof USB2.0 connector ground structure Download PDFInfo
- Publication number
- CN110854589B CN110854589B CN201911168651.0A CN201911168651A CN110854589B CN 110854589 B CN110854589 B CN 110854589B CN 201911168651 A CN201911168651 A CN 201911168651A CN 110854589 B CN110854589 B CN 110854589B
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- China
- Prior art keywords
- grounding
- main body
- grounding terminal
- plastic main
- metal shell
- Prior art date
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- 239000002184 metal Substances 0.000 claims abstract description 47
- 238000003466 welding Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 239000000109 continuous material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- WEJZHZJJXPXXMU-UHFFFAOYSA-N 2,4-dichloro-1-phenylbenzene Chemical compound ClC1=CC(Cl)=CC=C1C1=CC=CC=C1 WEJZHZJJXPXXMU-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
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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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/652—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding with earth pin, blade or socket
-
- 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
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/627—Snap or like fastening
-
- 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
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention relates to a waterproof USB2.0 connector grounding structure, which comprises a plastic main body, a grounding terminal I, a grounding terminal II, a contact element and an inner metal shell, wherein the inner metal shell is fixed in the plastic main body in a pre-installation and secondary riveting mode, the contact element is fixed in the plastic main body in a forced installation mode and is communicated with the inner metal shell, the grounding terminal I and the grounding terminal II are forcibly installed in the plastic main body from two sides of the tail part of the plastic main body, and limiting structures are arranged on two sides of the plastic main body to fix the positions of the grounding terminal I and the grounding terminal II; after being forcibly installed into the plastic main body, the two grounding terminals are connected and conducted with the contact part of the inner metal shell in a point-surface contact mode, and elastic contact is realized through a cantilever beam structure on the grounding terminals. The position precision of the terminal grounding welding leg is high, and the stress deformation of the welding leg can be prevented when a product is welded with a PCB. And the grounding terminal is small, the cost of parts is low, automatic assembly and assembly can be realized, and the product cost is reduced.
Description
Technical Field
The invention relates to a waterproof USB2.0 connector grounding structure.
Background
With the improvement of the experience demand of consumers, the traditional mobile phone adapter without waterproof performance cannot meet the market demand. In the mobile phone introduced by mainstream mobile phone manufacturers in the future market, all the matched adapters need to have waterproof performance, so that the common output interface USB2.0 connector monomer needs to be designed and customized for waterproof performance. The USB2.0 waterproof connector commonly used at present adopts two independent metal casing parts to realize the switching ground connection function, and two independent metal casing parts include interior metal casing and outer metal casing, and interior metal casing provides the plug power when mutually supporting with the plug and realizes elastic contact with plug housing, and outer metal casing and the inside short circuit of interior metal casing draw forth with PCB welded ground leg to the realization is from the plug to the switch-on connection of the whole ground connection link of printed board. The current USB2.0 waterproof connector has the following disadvantages:
(1) the outer metal shell is buckled on the insulator in an up-and-down mode, the grounding welding leg and the outer metal shell are integrated, and the grounding welding leg is poor in position degree due to limitation of bending precision of a die, so that the welding leg is prone to stress deformation when a machine holds a PCB on a product;
(2) the outer metal shell is large in size and high in part cost, and meanwhile, due to structural limitation, the metal shell is difficult to assemble by adopting an automatic machine, so that the product assembly efficiency is low, and the cost is high.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a waterproof USB2.0 connector grounding structure, wherein an independent grounding terminal is designed, and the grounding terminal is limited and fixed by a plastic clamping groove on a plastic main body, so that the position precision of a terminal grounding welding leg is high, and the welding leg can be prevented from deforming under stress when a product is welded with a PCB (printed circuit board). And the grounding terminal is small, the cost of parts is low, automatic assembly and assembly can be realized, and the product cost is reduced.
The technical problem is solved by adopting the following technical scheme, the waterproof USB2.0 connector grounding structure provided by the invention comprises a plastic main body, a grounding terminal I, a grounding terminal II, a contact element and an inner metal shell, wherein the inner metal shell is fixed in the plastic main body in a pre-installation and secondary riveting mode, the contact element is fixed in the plastic main body in a forced installation mode and is communicated with the inner metal shell, the grounding terminal I and the grounding terminal II are forced in the plastic main body from two sides of the tail part of the plastic main body, and limiting structures are arranged on two sides of the plastic main body to fix the positions of the grounding terminal I and the grounding terminal II; after being forcibly installed into the plastic main body, the two grounding terminals are connected and conducted with the contact part of the inner metal shell in a point-surface contact mode, and elastic contact is realized through a cantilever beam structure on the grounding terminals.
Furthermore, the grounding terminal I is Z-shaped and comprises a first arm, a second arm and a cross beam positioned between the first arm and the second arm; the first arm of the cantilever beam structure is provided with a convex hull used for realizing point-surface contact with the contact part of the inner metal shell so as to improve the contact reliability, and the upper end of the second arm of the cantilever beam structure is clamped into the limiting structure on the plastic main body to fix the position of the welding leg of the grounding terminal through the limiting structure so as to prevent the welding leg from deforming under stress when the connector is welded with the PCB; the grounding terminal II is structurally symmetrical to the grounding terminal I.
Furthermore, the convex hull is a circular convex hull.
Furthermore, the cross beam and the second arm form a fold transition.
Furthermore, the cantilever beam is inclined towards the side where the circular convex hull is located, so that elastic contact with the contact part of the inner metal shell is achieved.
Furthermore, the limiting structure is a plastic clamping groove arranged at the rear part of the plastic main body.
Compared with the prior art, the invention has the following advantages:
the invention does not need an outer metal shell, only needs to assemble the inner metal shell in the plastic main body in a pre-assembling and secondary riveting fixing mode, and is additionally provided with two independent grounding terminals which are forcibly arranged in the plastic main body and are limited and fixed by the plastic clamping grooves on the plastic main body, so that the position precision of the grounding welding leg of the terminal is high, and the stress deformation of the welding leg when a product is welded with a PCB (printed circuit board) is prevented. The inner metal shell is communicated with the contact element and the grounding terminal, the connecting part of the grounding terminal and the inner metal shell is of a cantilever beam structure, so that elastic contact can be realized, and the cantilever beam structure is provided with a convex hull, so that the grounding terminal and the inner metal shell are in point-surface contact, and the contact reliability can be improved. The grounding terminal is produced and molded by adopting a continuous stamping die, and is packaged in a coiled manner in a continuous material belt mode, so that the grounding terminal is small in size and low in part cost, and meanwhile, automatic assembly and assembly can be realized, and the product cost is reduced.
Drawings
FIG. 1 is a schematic view of the back side structure of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is an exploded view of fig. 1.
Fig. 4 is a schematic view of the inner metal shell pre-loaded into the plastic body from the front.
Fig. 5 is a schematic diagram of the structure of the ground terminal i and the ground terminal ii.
Fig. 6 is a schematic diagram of the cantilever beam tilt feature on ground terminal i and ground terminal ii.
Fig. 7 is a schematic view of the ground terminals i and ii in contact with the inner metal shell.
Element and symbol description:
the structure comprises a plastic main body 1, a grounding terminal I2, a grounding terminal II 3, a contact 4, an inner metal shell 5, a plastic rear plug 6, a PCB 7, a first arm 8, a second arm 9, a crossbeam 10, a cantilever beam structure 11, a convex hull 12, a contact mounting hole 13, a plastic clamping groove 14, a folded transition structure 15, an inner metal shell contact part 16 and an inner metal shell riveting part 17.
Detailed Description
In order to further illustrate the technical means and technical effects adopted by the present invention, the present invention is described in detail below with reference to the examples.
It should be noted that: the terms "upper end", "rear end", "front part", "rear part", etc. indicating the orientations of the present invention are based on the illustrated orientations or positional relationships and are only used for convenience in describing the present invention, and thus, should not be construed as limiting the present invention.
As shown in fig. 1-4, the grounding structure of the waterproof USB2.0 connector of the present invention includes a plastic main body 1, a grounding terminal i 2, a grounding terminal ii 3, a contact 4, an inner metal shell 5, and a plastic rear plug 6. The inner metal shell is fixed in the plastic main body in a pre-assembling and secondary riveting mode, the contact element is fixed in the plastic main body in a forced assembling mode and is communicated with the inner metal shell, the grounding terminal I and the grounding terminal II are forcibly arranged in the plastic main body from two sides of the tail part of the plastic main body, and limiting structures are arranged on two sides of the plastic main body to fix the positions of the connecting terminals; after the two grounding terminals are forcibly installed in the plastic main body, the grounding terminal I, the grounding terminal II and the inner metal shell are connected and conducted in a point-surface contact mode, so that the contact reliability is improved, and elastic contact is realized through a cantilever beam structure on the grounding terminal. Can realize the waterproof performance of connector through the thick liquid of pointing in plastic main part, the stopper is used for the through-hole of shutoff plastic main part to be convenient for to the thick liquid operation of pointing behind the plastic, and this operation of pointing thick liquid is current common technique, no longer gives unnecessary details.
As shown in fig. 5, the grounding terminal i is Z-shaped, and includes a first arm 8, a second arm 9, and a beam 10 located between the first arm and the second arm; the first arm of the cantilever beam is provided with a cantilever beam structure 11, and the cantilever beam structure is provided with a circular convex hull 12 for realizing point-surface contact with the inner metal shell, so that the contact reliability is improved. The upper end card of its second arm carries out the accuracy through this limit structure in going into the limit structure on the plastic main part and fixes the leg position of ground terminal, and leg atress warp when preventing connector and PCB board 7 welding. The cross beam and the second arm are in folded transition to be used for being matched with an installation space of the plastic main body, as shown in fig. 5 and 6, the cantilever beam of the first arm is inclined relative to the cross beam, and the cantilever beam is inclined towards one side where the circular convex hull is located so as to be in elastic contact with the contact part 16 of the inner metal shell, as shown in fig. 6. After the grounding terminal i is forcibly installed into the plastic body from the tail of the plastic body, the circular convex hull on the cantilever beam and the contact portion 16 on the inner metal shell realize point-surface contact due to the inclined characteristic of the cantilever beam, as shown in fig. 1.
The structure of the ground terminal ii is the same as that of the ground terminal i, and the two structures are symmetrical, as shown in fig. 5 and 6, which are not described herein again.
Ground terminal I and ground terminal II adopt continuous stamping die production shaping, continuous material area mode is around set packing, makes the earth terminal volume little, part is with low costs, realizes automatic assembly equipment simultaneously easily to reduce product cost.
Further, a contact mounting hole 13 is formed in the plastic body, and the contact 4 is forcibly fitted into the plastic body from the tail portion thereof, as shown in fig. 3. The inner metal shell is pre-assembled into the plastic main body from the front part of the plastic main body and then fixed in the plastic main body in a secondary riveting manner, and the riveting part 17 of the inner metal shell is shown in fig. 1.
Further, the limiting structure for limiting and fixing the ground terminal is a plastic card slot 14 disposed at the rear portion of the plastic main body, as shown in fig. 3.
The grounding structure of the invention does not need an outer metal shell, the contact element and the inner metal shell are arranged in the plastic main body, and meanwhile, an independent grounding terminal is designed, and the grounding terminal is forcibly arranged in the plastic main body and is limited and fixed by the plastic clamping groove in the plastic main body, so that the position precision of the grounding welding leg of the terminal is high, and the stress deformation of the welding leg when the product is welded with a PCB (printed circuit board) is prevented. The grounding structure of the invention has small volume, and can realize automatic assembly, thereby improving the assembly efficiency and reducing the cost.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention in any way, and any simple modification, equivalent change and modification made by those skilled in the art according to the technical spirit of the present invention are still within the technical scope of the present invention without departing from the technical scope of the present invention.
Claims (5)
1. A waterproof USB2.0 connector grounding structure is characterized by comprising a plastic main body, a grounding terminal I, a grounding terminal II, a contact element and an inner metal shell, wherein the inner metal shell is fixed in the plastic main body in a pre-assembling and secondary riveting mode, the grounding terminal I and the grounding terminal II are forcibly arranged in the plastic main body from two sides of the tail of the plastic main body, and limiting structures are arranged on two sides of the plastic main body to fix the positions of the grounding terminal I and the grounding terminal II; after being forcibly arranged in the plastic main body, the two grounding terminals are connected and conducted with the contact part of the inner metal shell in a point-surface contact mode, and elastic contact is realized through a cantilever beam structure on the grounding terminals; the grounding terminal I is Z-shaped and comprises a first arm, a second arm and a cross beam positioned between the first arm and the second arm; the first arm of the cantilever beam structure is provided with a convex hull used for realizing point-surface contact with the contact part of the inner metal shell so as to improve the contact reliability, and the upper end of the second arm of the cantilever beam structure is clamped into the limiting structure on the plastic main body to fix the position of the welding leg of the grounding terminal through the limiting structure so as to prevent the welding leg from deforming under stress when the connector is welded with the PCB; the grounding terminal II is structurally symmetrical to the grounding terminal I.
2. The waterproof USB2.0 connector grounding structure of claim 1, wherein the convex hull is a circular convex hull.
3. The waterproof USB2.0 connector grounding structure of claim 1, wherein the cross beam and the second arm are folded.
4. The waterproof USB2.0 connector grounding structure of claim 2, wherein the cantilever beam is inclined toward the side where the convex hull is located so as to make elastic contact with the contact portion of the inner metal shell.
5. The waterproof USB2.0 connector grounding structure of claim 1, wherein the limiting structure is a plastic slot disposed at the rear of the plastic body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168651.0A CN110854589B (en) | 2019-11-25 | 2019-11-25 | Waterproof USB2.0 connector ground structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911168651.0A CN110854589B (en) | 2019-11-25 | 2019-11-25 | Waterproof USB2.0 connector ground structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110854589A CN110854589A (en) | 2020-02-28 |
| CN110854589B true CN110854589B (en) | 2021-04-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911168651.0A Active CN110854589B (en) | 2019-11-25 | 2019-11-25 | Waterproof USB2.0 connector ground structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN110854589B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6468108B1 (en) * | 2001-07-24 | 2002-10-22 | Hon Hai Precision Ind. Co. Ltd. | Electrical connector with improved board locks |
| US20030181096A1 (en) * | 2002-03-21 | 2003-09-25 | Kuon Yi Industrial Corp. | Structure of connector outer shell |
| CN2686147Y (en) * | 2003-11-21 | 2005-03-16 | 番禺得意精密电子工业有限公司 | Electric connector |
| CN2791959Y (en) * | 2005-03-03 | 2006-06-28 | 拓洋实业股份有限公司 | Card board components for electrical connectors |
| CN204905506U (en) * | 2015-08-28 | 2015-12-23 | 东莞市高端电子有限公司 | Socket structure with insulating piece |
| CN206976715U (en) * | 2017-06-19 | 2018-02-06 | 启东乾朔电子有限公司 | Socket connector |
-
2019
- 2019-11-25 CN CN201911168651.0A patent/CN110854589B/en active Active
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| CN110854589A (en) | 2020-02-28 |
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Effective date of registration: 20221206 Address after: 511400 101, No. 45-3, Gongye Road, Hualong Town, Panyu District, Guangzhou, Guangdong Patentee after: AVIC Optoelectronics (Guangdong) Co.,Ltd. Address before: 471000 No.10 Zhoushan Road, high tech Zone, Luoyang City, Henan Province Patentee before: AVIC JONHON OPTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |