CN1223481A - Surface mount electrical connector - Google Patents
Surface mount electrical connector Download PDFInfo
- Publication number
- CN1223481A CN1223481A CN 98127131 CN98127131A CN1223481A CN 1223481 A CN1223481 A CN 1223481A CN 98127131 CN98127131 CN 98127131 CN 98127131 A CN98127131 A CN 98127131A CN 1223481 A CN1223481 A CN 1223481A
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- Prior art keywords
- terminal
- connector
- circuit board
- printed circuit
- electrical connector
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Abstract
A low profile surface mount electrical connector is provided for connecting an electronic component such as an IC card on a planar surface of a printed circuit board which includes circuit traces thereon. The connector includes a generally flat insulating housing overmolded about a plurality of stamped and formed electrical terminals. The housing has a bottom surface. Each terminal includes a generally planar surface mount portion projecting from the housing generally coplanar with the bottom surface thereof for electrical connection to a circuit trace on the planar surface of the printed circuit board. Each terminal includes a contact arm portion folded back over the surface mount portion for electrical connection to the electronic component.
Description
The present invention relates generally to electric connector field, relate in particular to electrical connector for surface installation, it has little profile, and has the terminal that for example is used for the IC-card reader system.
In many application, need small-sized electric connector, for example on the plane that is used at printed circuit board (PCB), connect for example electrical connector for surface installation of IC-card of electronic component.In fact, how much big the external dimensions of the jockey in this system is unlike IC-card itself usually.
Along with the appearance of for example palmtop computer and portable cellular phone, proposed to make the little and lightweight requirement of the electric component volume that comprises electric connector.For example, in cell phone, require to make the smart card connector, for example the connector in the SIM type card reader is as far as possible little.Some connector producers are the size of the connector of scaled routine simply, so that obtain less and closeer connector.Yet the size of simply dwindling connector can influence connector performance and reliability, because less size does not always have identical Performance And Reliability.
In addition, thus it is that to make all elements all be real surface mounted component that the density that is used on given circuit board increasing electric component reduces a kind of relatively successful method of the volume and weight of device.In other words, use and be installed in a lip-deep element of printed circuit board (PCB) fully, so that make the reverse side of printed circuit board (PCB) can be used for installing other surface mounted component.Yet surface-mount connector has the problem different with the through hole connector of its uniqueness, for example orientation problem and copline problem.If terminal comprises afterbody or passes through the lead-in wire that printed circuit board (PCB) extends that these problems then do not exist.A kind of method of improving the coplanarity of mounted on surface terminal lead is the elasticity that increases lead-in wire, make when connector is placed on the surface of printed circuit board (PCB), lead-in wire produces distortion, makes itself and other mounted on surface lead-in wire be in a straight line or coplanar tolerance thereby eliminate.If the elasticity of mounted on surface lead-in wire is not enough, and thereby can not be deformed to the position of other lead-in wire, then have some mounted on surface lead-in wires and contact with printed circuit board (PCB), other then discord printed circuit board (PCB) contacts.
Above-mentioned surface-mount connector, smart card connector for example generally comprises to have with the contact of IC-card or module and forms the elastic contact arm that contacts.Importantly, these cantilevers have enough elasticity, so that make all contact arms and IC-card contact realize contacting.The elasticity of contact arm is generally determined by a sweep in the terminal.The terminal of this connector also comprises the afterbody of mounted on surface, and it is welded on the circuit trace on the printed circuit board surface.In general, the mounted on surface afterbody stretches out downwards from the body or the housing of connector, so that formation contacts with printed circuit board surface.Therefore, because the welding tail down is crooked and cantilever is bent upwards, so exist in the compromise between the elasticity of the afterbody of mounted on surface and cantilever type contact arm usually because the height of whole electrical connector or profile are given, or limited by strictness at least.
The present invention is intended to address these problems, and especially will solve the difficult problem between the elasticity of mounted on surface afterbody and cantilever type contact arm, does not increase the height or the profile of electrical connector so that the elasticity of terminal is maximum.
Therefore, the objective of the invention is to, a kind of new improved electrical connector for surface installation with above-mentioned feature is provided.
In the embodiment of an example of the present invention, electric connector is a kind of small-sized connector, is used to be connected the electronic component IC-card for example on the plane of printed circuit board (PCB), comprises circuit trace on printed circuit board (PCB).In general, connector comprises and is molded the flat insulation shell that forms and be used for fixing the electric terminal of a plurality of drawings.Specifically, described housing has the bottom surface, and each terminal comprises it being the mounting portion on plane basically, and this part is stretched out from housing, and the bottom surface with housing is in the same plane basically, is used to be electrically connected the circuit trace on the printed circuit board plane.Each terminal is included in the backfolding contact arm part in top of mounted on surface part, is used for being electrically connected with electronic component.
As mentioned above, the width of the mounted on surface part that is essentially the plane of each terminal is greater than the width of its contact arm part.Contact arm partly comprises bandy contact portion, is used for engaging with electronic component reliably.
Insulation shell can comprise along a pair of projection that separates of the opposite side of array of terminals.The projection that separates is used to protect terminal, and the guider that the contact arm of itself and terminal is partly engaged as the guiding IC-card.Other characteristics of the present invention and advantage will more be clear that from the detailed description of doing below in conjunction with accompanying drawing.
New feature of the present invention has proposed in the appended claims.Characteristics of the present invention and advantage are by being clear that more referring to the explanation of carrying out below in conjunction with accompanying drawing, and identical label is represented similar element in the accompanying drawing, wherein:
Fig. 1 is the perspective view that comprises the small-sized electrical connector for surface installation of design of the present invention;
Fig. 2 is the perspective view of the connector that uses in the card reader device;
Fig. 3 is before the card guiding device is installed on the circuit board, the perspective view on the connector surface of installing on the printed circuit board (PCB) of the device of Fig. 2;
Fig. 4 be at connector shell before molded on the array of terminals, the perspective view of array of terminals;
Fig. 5 is the perspective view of another embodiment of connector, comprising the end bosses part of connector shell; And
Fig. 6 is the top view of the embodiment of Fig. 5.
At first be elaborated with reference to Fig. 1, small-sized electrical connector of the present invention is represented with label 10.This connector comprises flat basically insulation shell 12, and it is molded on the electric terminal of a plurality of drawings, by label 14 expressions.Housing has flat bottom surface 16, is used for carrying out mounted on surface on printed circuit board (PCB), as described later.
Each terminal 14 comprises the mounted on surface part 18 that is essentially the plane, and it stretches out and bottom surface 16 coplines of housing from housing 12.The circuit trace that mounted on surface part 18 is used on the plane with printed circuit board (PCB) is electrically connected, as described later.
Each terminal 14 also is included in and is used to be electrically connected electronic component, and for example the direction inflection is folded on the mounted on surface part 18 of the terminal of the contact on the IC-card, for example at 22 places, and cantilever type contact arm part 20.Because terminal is stamped to form by the metallic plate of conduction, terminal at 22 places along being bent perpendicular to the direction on metallic plate plane, thereby above the mounted on surface part 18 on plane, form cantilever type contact arm part 20.In a preferred embodiment, contact arm part also is formed or is bent to the outside, plane of metallic sheet material, thereby forms upwards or the outside contact portion 24 of bow, and in fact it engage with the contact of IC-card.These narrower or less contact portions make it possible to realize concentric or reliable the joint with the IC-card contact.
Fig. 2 is illustrated in the card reader device of being represented by label 26, a kind of application of electrical connector for surface installation 10.Specifically, connector is installed on the upper surface 28 of printed circuit board (PCB) 30.Connector is arranged in the groove 32 of the IC-card guide of representing with label 34, and guide has flat basically diapire 36, is formed with groove 32 therein, provides protection so as to making diapire to the terminal 14 of connector 10.Guide has a pair of substantially parallel side channel 38 and pit 40.Side channel guiding IC-card inserts in the described device along the direction shown in the arrow " A ", and the insertion of 40 pairs of IC-cards of pit provides restriction and it is stopped.When whole insertion, be fixed at the contact of downside of card so that and the contact portion 24 of the upwards bow of terminal 14 engage.
Fig. 3 represents to be surface mounted in the connector 10 on the upper surface 28 of printed circuit board (PCB) 30.The mounted on surface part 18 on the plane of terminal 14 is soldered on the suitable circuit trace (not shown) on the end face of circuit board.Can be fixed on guide 34 on the printed circuit board (PCB) by in the installing hole 44 of printed circuit board (PCB), inserting the pin 42 that stretches out from the bottom side of guide then.
By as seen above-mentioned, be appreciated that, because the mounted on surface part 18 on the plane of the terminal 14 that stretches out from molded housing 12 and bottom surface 16 coplines of housing, all be maximum for the radius of curvature of the sweep 22 of any assigned altitute of connector or shape (being the height of 28 tops, surface on the plane of printed circuit board (PCB) 30) terminal.Therefore, the elasticity maximum of cantilever type contact arm part 20 (thereby also being the contact portion 24 of its bow), thereby reduce because must and any problem of producing of the contact portion 24 shortage coplanarities of the coplanar contact joint on IC-card flat, the plane.
Fig. 4 represents the situation of array of terminals 14 before being molded on the housing 12.Housing utilizes that insulating plastics material is molded to form.The plane mounted on surface part 18 that is appreciated that terminal can be utilized high-precision anchor clamps location, and, when molded thereon the time, can keep accurate copline to concern housing 12.For terminal being rigidly fixed on the molded housing thereon, and keep the coplanarity of mounted on surface part 18, each terminal 14 has body part 46, and it has upright ear or flange 48 in the material that is embedded in molded housing thereon.Body part 46 is the coplanar extensions with the flat surface mounting portion 18 of terminal.
Fig. 5 and Fig. 6 represent another embodiment of connector 10, and its middle shell 12 has a pair of projection or arm 50, and it is along each opposite end crossing out from housing of array of terminals 14.This embodiment can be used under the situation that connector is not set at the groove that is used for protecting terminal, as Fig. 2, shown in 3.At Fig. 5, projection or arm 50 in 6 play double action, that is, provide protection to terminal 14, and the bow contact portion of IC-card along terminal outwards led.
Be appreciated that not break away from design of the present invention, the present invention can implement with other particular form.Therefore, the embodiment of explanation only is used to illustrate the present invention, rather than is used to limit the present invention, and, the invention is not restricted to the details that provides in this explanation.
Claims (5)
1, a kind of small-sized electrical connector for surface installation (10) is used to be connected the electronic component IC-card for example on the plane (28) of printed circuit board (PCB) (30), comprises circuit trace on printed circuit board (PCB) (30), it is characterized in that,
Be molded on the electric terminal (14) of a plurality of drawings, flat basically and insulation shell (12) that comprise baseplane (16) and
Each terminal (14) comprises it being the mounted on surface part (18) on plane basically, this part is stretched out from housing (12), basically the bottom surface (16) with housing is in the same plane, be used to be electrically connected the circuit trace on printed circuit board (PCB) (30) plane (28), each terminal also is included in the backfolding contact arm part in top (20) of mounted on surface part (18), is used for being electrically connected with described electronic component.
2, small-sized electrical connector for surface installation as claimed in claim 1, wherein the width of the mounted on surface part (18) that is essentially the plane of each terminal (14) is greater than the width of its contact arm part (20).
3, small-sized electrical connector for surface installation as claimed in claim 1, wherein the contact arm of each terminal part (20) comprises bandy contact portion (24), is used for engaging with electronic component reliably.
4, small-sized electrical connector for surface installation as claimed in claim 3, the contact portion of wherein said bending (24) is narrower than the mounted on surface part (18) of terminal (14).
5, small-sized electrical connector for surface installation as claimed in claim 1, wherein said insulation shell (12) comprises a pair of projection that separates (50), is used to guide IC-card that the contact arm part (20) of itself and terminal (14) is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98127131 CN1223481A (en) | 1997-11-17 | 1998-11-16 | Surface mount electrical connector |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP97120072.0 | 1997-11-17 | ||
| CN 98127131 CN1223481A (en) | 1997-11-17 | 1998-11-16 | Surface mount electrical connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1223481A true CN1223481A (en) | 1999-07-21 |
Family
ID=5229847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98127131 Pending CN1223481A (en) | 1997-11-17 | 1998-11-16 | Surface mount electrical connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1223481A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207246B (en) * | 2006-12-18 | 2010-12-15 | 富士康(昆山)电脑接插件有限公司 | Electric connecting assembly |
| CN105186170A (en) * | 2015-08-10 | 2015-12-23 | 昆山科信成电子有限公司 | Conductive terminal of breaking-PIN prevention and card connector |
| CN111082236A (en) * | 2018-10-18 | 2020-04-28 | 富加宜（美国）有限责任公司 | High-reliability sliding power connector |
-
1998
- 1998-11-16 CN CN 98127131 patent/CN1223481A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101207246B (en) * | 2006-12-18 | 2010-12-15 | 富士康(昆山)电脑接插件有限公司 | Electric connecting assembly |
| CN105186170A (en) * | 2015-08-10 | 2015-12-23 | 昆山科信成电子有限公司 | Conductive terminal of breaking-PIN prevention and card connector |
| CN111082236A (en) * | 2018-10-18 | 2020-04-28 | 富加宜（美国）有限责任公司 | High-reliability sliding power connector |
| CN111082236B (en) * | 2018-10-18 | 2023-08-29 | 富加宜（美国）有限责任公司 | High-reliability sliding power connector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |