WO2008017717A1 - Connector having strongly retained terminals - Google Patents
Connector having strongly retained terminals Download PDFInfo
- Publication number
- WO2008017717A1 WO2008017717A1 PCT/EP2007/058311 EP2007058311W WO2008017717A1 WO 2008017717 A1 WO2008017717 A1 WO 2008017717A1 EP 2007058311 W EP2007058311 W EP 2007058311W WO 2008017717 A1 WO2008017717 A1 WO 2008017717A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- barbs
- terminals
- connector
- housing
- primary
- Prior art date
Links
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
- H01R13/40—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
- H01R13/41—Securing in non-demountable manner, e.g. moulding, riveting by frictional grip in grommet, panel or base
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
Definitions
- the present invention relates to a connector, and more particularly to a connector having preferred retaining force between the terminals and housing and also having appropriate impedance characteristics.
- FIG. 1 shows a connector (100).
- the connector (100) includes a housing (102) having a slot surrounded by a pair of longitudinal walls (104a, 104b) and a pair of transverse walls (104c, 104d) for receiving an edge of a card inserted into the slot.
- Terminals (106) of a conventional connector shown in FIG. 2A are generally arranged on longitudinal walls (104a, 104b) of the slot, and includes a contact portion (108) for electrically connecting to the card, a retention portion (110) having barbs (110a, 110b, 112a, 112b) for retaining the plurality of terminals in the housing (102), and a tail portion (120) for connecting a circuit board.
- a contact portion (108) for electrically connecting to the card
- a retention portion (110) having barbs (110a, 110b, 112a, 112b) for retaining the plurality of terminals in the housing (102)
- a tail portion (120) for connecting a circuit board.
- a connector includes a housing in which a plurality of terminals are disposed.
- Each of the plurality of terminals has a pair of primary projections or barbs, and at least two pairs of secondary projections or barbs. Both the primary and secondary projections or barbs are for retaining the terminals in the housing.
- the secondary projections or barbs are configured such that each one is smaller than the primary protection or barb. Terminals may be strongly retained in a housing and in the meantime, impedance characteristics of the connector is not adversely affected.
- FIG. 1 is a schematic diagram showing a connector
- FIG. 2A is a schematic diagram showing terminals of a conventional connector
- Fig. 2B is a schematic diagram showing one example terminal taken from the terminals shown in Fig. 2A;
- FIG. 3A is a schematic diagram showing terminals of a connector according to an embodiment of the present invention.
- FIG. 3B is a schematic diagram showing a sample terminal taken from the terminals shown in Fig. 3A.
- FIGs. 3A and 3B show terminal(s) (306) of a connector according to one embodiment of the present invention.
- each one of the plurality of terminals (306) includes a contact portion (308) for electrically connecting to a card (not shown) inserted in the slot of the connector, a barb portion (310) for retaining the terminal (306) in the housing (102), and a tail portion (320) for connecting to a circuit board (not shown).
- the barb portion (310) of each of the plurality of terminals (306) includes a pair of primary barbs (310a, 310b) and at least two pairs of secondary barbs (312a, 312b, 314a, 314b).
- the primary barbs and the secondary barbs protrude from a terminal along opposite transverse directions (332) or (334), i.e., primary barb (310a) and secondary barbs (312a, 314a) protrude from terminal (306) along transversal directions (332), shown in Fig. 3B pointing to the left, and primary barb (310b) and secondary barbs (312b, 314b) protrude along opposite transverse directions (334), shown in Fig. 3B pointing to the right from terminal (306a).
- primary barbs (310a, 310b) and secondary barbs (312a, 312b, 314a, 314b) are disposed spaced apart from each other along longitudinal direction 336 of terminal 306.
- each of the secondary barbs is smaller than the primary barb, and the sum of the area of all the secondary barbs is also smaller than the sum of the area of the primary barbs. Configured this way, each terminal is provided with more but smaller barbs to increase the retaining force with the housing, but without increase the total area of the barbs. Impedance characteristics are therefore not adversely affected. - A -
- the secondary barbs (312a, 312b, 314a, 314b) of a terminal are arranged in a staggered manner with respect to the secondary barbs (313a, 313b, 315a, 315b) of an adjacent terminal (e.g. 306b) (Fig. 3A).
- the primary barbs (310a, 310b) may be used to engage the housing, to provide main retaining force between the terminals (306) and the housing.
- the at least two pairs of secondary barbs (312a, 312b, 314a, 314b) may engage the housing, to further reinforce the retaining force between the plurality of terminals (306) and the housing. The sum of the area of the secondary barbs
- Impedance characteristics of a connector are not adversely affected in this regard.
- the terminals in an embodiment of the present invention may be configured to have a pair of primary barbs (310a, 310b) and at least two pairs of secondary barbs (312a, 312b, 314a, 314b) smaller than the primary barbs (310a, 310b).
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
A connector has a housing and a plurality of terminals disposed in the housing. Each of the plurality of terminals has a pair of primary barbs and at least two pairs of secondary barbs for retaining the plurality of terminals in the housing. A pair of secondary barbs of each terminal is arranged in a staggered manner with respect to a pair of secondary barbs of an adjacent terminal. Each of the secondary barbs is smaller than the primary barb. Increased retaining force can be provided between the terminals and housing without increasing the total area or size of the barbs. Impedance characteristics of a connector with terminals so configured are not adversely affected.
Description
CONNECTOR HAVING STRONGLY RETAINED TERMINALS
Technical Field Of The Invention
The present invention relates to a connector, and more particularly to a connector having preferred retaining force between the terminals and housing and also having appropriate impedance characteristics.
Background Of The Invention
Connectors are used in electrical devices for transmitting signals. FIG. 1 shows a connector (100). The connector (100) includes a housing (102) having a slot surrounded by a pair of longitudinal walls (104a, 104b) and a pair of transverse walls (104c, 104d) for receiving an edge of a card inserted into the slot.
Terminals (106) of a conventional connector shown in FIG. 2A are generally arranged on longitudinal walls (104a, 104b) of the slot, and includes a contact portion (108) for electrically connecting to the card, a retention portion (110) having barbs (110a, 110b, 112a, 112b) for retaining the plurality of terminals in the housing (102), and a tail portion (120) for connecting a circuit board. However, there is a potential problem as follows: when a card is to be removed from the slot, the removal operation generates a force on the terminals. If the retaining force provided by the retention portion (110) is not sufficient to retain the plurality of terminals (106) in the housing (102), the terminals (106) may be pulled out from the housing (102) by which, the connector may be damaged.
Relevant technologies are developed by providing more barbs on the terminals, or increase the size of the barbs, in an attempt to increase the retaining force between the terminals and the housing. However, while the retaining force may be increased by these solutions, the impedance characteristics of the connector will also be reduced due to the increase of the cross-sectional area of the terminals by the bigger sized barbs.
In view of the above, it is necessary to provide a connector having increased retaining force between the terminals and the housing and in the meantime, the impedance characteristics of the connector is not adversely affected.
Summary Of The Invention
According to one embodiment, a connector includes a housing in which a plurality of terminals are disposed. Each of the plurality of terminals has a pair of primary projections or barbs, and at least two pairs of secondary projections or barbs. Both the primary and secondary projections or barbs are for retaining the terminals in the housing. The secondary projections or barbs are configured such that each one is smaller than the primary protection or barb. Terminals may be strongly retained in a housing and in the meantime, impedance characteristics of the connector is not adversely affected.
Those skilled in the art should understand that preferred embodiments will be described with reference, but not limited, to the following specific embodiments.
Brief Description Of The Drawings
FIG. 1 is a schematic diagram showing a connector;
FIG. 2A is a schematic diagram showing terminals of a conventional connector;
Fig. 2B is a schematic diagram showing one example terminal taken from the terminals shown in Fig. 2A;
FIG. 3A is a schematic diagram showing terminals of a connector according
to an embodiment of the present invention;
FIG. 3B is a schematic diagram showing a sample terminal taken from the terminals shown in Fig. 3A.
Detailed Description
FIGs. 3A and 3B show terminal(s) (306) of a connector according to one embodiment of the present invention. In this embodiment, each one of the plurality of terminals (306) includes a contact portion (308) for electrically connecting to a card (not shown) inserted in the slot of the connector, a barb portion (310) for retaining the terminal (306) in the housing (102), and a tail portion (320) for connecting to a circuit board (not shown). The barb portion (310) of each of the plurality of terminals (306) includes a pair of primary barbs (310a, 310b) and at least two pairs of secondary barbs (312a, 312b, 314a, 314b). The primary barbs and the secondary barbs protrude from a terminal along opposite transverse directions (332) or (334), i.e., primary barb (310a) and secondary barbs (312a, 314a) protrude from terminal (306) along transversal directions (332), shown in Fig. 3B pointing to the left, and primary barb (310b) and secondary barbs (312b, 314b) protrude along opposite transverse directions (334), shown in Fig. 3B pointing to the right from terminal (306a). In the present embodiment, primary barbs (310a, 310b) and secondary barbs (312a, 312b, 314a, 314b) are disposed spaced apart from each other along longitudinal direction 336 of terminal 306.
In one embodiment, each of the secondary barbs is smaller than the primary barb, and the sum of the area of all the secondary barbs is also smaller than the sum of the area of the primary barbs. Configured this way, each terminal is provided with more but smaller barbs to increase the retaining force with the housing, but without increase the total area of the barbs. Impedance characteristics are therefore not adversely affected.
- A -
In another embodiment, the secondary barbs (312a, 312b, 314a, 314b) of a terminal (e.g. 306a) are arranged in a staggered manner with respect to the secondary barbs (313a, 313b, 315a, 315b) of an adjacent terminal (e.g. 306b) (Fig. 3A). An advantage provided by this structure is that, the distance between adjacent terminals at the barb portion can be greater than that of a conventional connector, hence a connector so configured may provide improved impedance characteristics.
The primary barbs (310a, 310b) may be used to engage the housing, to provide main retaining force between the terminals (306) and the housing. In addition, the at least two pairs of secondary barbs (312a, 312b, 314a, 314b) may engage the housing, to further reinforce the retaining force between the plurality of terminals (306) and the housing. The sum of the area of the secondary barbs
(312a, 312b, 314a, 314b) is less than the sum of the area of the primary barbs (310a, 310b). Thus, increased engagement force between the terminals and the housing may be obtained, without increasing the area or the size of the barbs.
Impedance characteristics of a connector are not adversely affected in this regard.
In view of the above, the terminals in an embodiment of the present invention may be configured to have a pair of primary barbs (310a, 310b) and at least two pairs of secondary barbs (312a, 312b, 314a, 314b) smaller than the primary barbs (310a, 310b). By this structure, two pairs of secondary barbs
(312a, 312b, 314a, 314b) smaller than the primary barbs (310a, 310b) of the present invention not only enhance the retaining force between the housing (102) and the terminals (306), but also solve the problem in conventional connector where the signal integrity of the connector is adversely affected by the reduced impedance caused by the increase of the cross-sectional area of the barbs of the terminals.
Although embodiments of the present invention have been illustrated in conjunction with the accompanying drawings and described in the foregoing detailed description, it should be appreciated that the invention is not limited to the
embodi merits disclosed, and is capable of numerous rearrangements, modifications, alternatives and substitutions without departing from the spirit of the invention as set forth and recited by the following claims.
Claims
1. A connector, comprising: a housing; a plurality of terminals disposed in the housing; wherein each of the plurality of terminals has a pair of primary barbs and at least two pairs of secondary barbs for retaining the terminal in the housing, and wherein a pair of secondary barbs of a first terminal is arranged in a staggered manner with respect to a pair of secondary barbs of an adjacent terminal.
2. The connector as claimed in claim 1 , wherein each of the secondary barbs is smaller than any one of the primary barbs.
3. The connector as claimed in claim 2, wherein a sum of an area of the least two pairs of secondary barbs is less than a sum of an area of the pair of primary barbs.
4. The connector as claimed in claim 1 , wherein each of the primary barbs and the secondary barbs is protruded in opposite transverse directions from a terminal.
5. The connector as claimed in claim 1 , wherein the primary barbs and secondary barbs are disposed spaced apart from each other along a longitudinal direction of a terminal.
6. A connector, comprising: a housing; a plurality of terminals disposed in the housing, each of the plurality of terminals has a first set of projections and a second set of projections for retaining the plurality of terminals in the housing, the first and second sets of projections being protruded along a transverse direction from the terminal; wherein one of the second set of projections of one terminal is arranged in a staggered manner with respect to that of an adjacent terminal.
7. The connector of claim 6, wherein each of the second set of projections is smaller than any one of the first set of projections.
8. The connector of claim 7, wherein a sum of an area of the second set of projections is less than a sum of an area of the first set of projections.
9. A connector, comprising: a housing; a plurality of terminals disposed in the housing; wherein each of the plurality of terminals has a pair of primary barbs and at least two pairs of secondary barbs for retaining the terminals in the housing, and wherein each of the secondary barbs is smaller than any one of the primary barbs.
10. The connector of claim 9, wherein a sum of an area of the least two pairs of secondary barbs is less than a sum of an area of the pair of primary barbs.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW95129437A TW200810254A (en) | 2006-08-10 | 2006-08-10 | Connector |
| TW095129437 | 2006-08-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008017717A1 true WO2008017717A1 (en) | 2008-02-14 |
Family
ID=38516164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2007/058311 WO2008017717A1 (en) | 2006-08-10 | 2007-08-10 | Connector having strongly retained terminals |
Country Status (2)
| Country | Link |
|---|---|
| TW (1) | TW200810254A (en) |
| WO (1) | WO2008017717A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197264B1 (en) | 2011-03-02 | 2012-06-12 | Lear Corporation | Electrical connector |
| CN109923738A (en) * | 2016-08-23 | 2019-06-21 | 申泰公司 | Electric contact piece with the improved anchorage zone of impedance operator |
| CN113285259A (en) * | 2021-05-06 | 2021-08-20 | 中航光电科技股份有限公司 | Connector, metal terminal mounting structure and metal terminal |
| CN113690670A (en) * | 2021-09-10 | 2021-11-23 | 东莞市昶通通讯科技有限公司 | Electric connector and device thereof |
| USD965530S1 (en) | 2016-09-30 | 2022-10-04 | Samtec, Inc. | Vertical electrical connector |
| US11569616B2 (en) | 2018-07-06 | 2023-01-31 | Samtec, Inc. | Connector with top- and bottom-stitched contacts |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904581A (en) * | 1996-07-17 | 1999-05-18 | Minnesota Mining And Manufacturing Company | Electrical interconnection system and device |
| DE102004031993A1 (en) * | 2003-07-10 | 2005-02-17 | Sumitomo Wiring Systems, Ltd., Yokkaichi | Connector terminal for electronic-circuit board, includes pressing-in structures having radially-protruding pressing-in portions, such that position of each pressing-in portion mutually deviates, when viewed from axial direction |
| EP1605549A1 (en) * | 2004-06-09 | 2005-12-14 | Tyco Electronics AMP K.K. | Press-fit terminal |
| US20060216970A1 (en) * | 2005-03-28 | 2006-09-28 | Lear Corporation | Electrical connector terminal and method of producing same |
-
2006
- 2006-08-10 TW TW95129437A patent/TW200810254A/en unknown
-
2007
- 2007-08-10 WO PCT/EP2007/058311 patent/WO2008017717A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5904581A (en) * | 1996-07-17 | 1999-05-18 | Minnesota Mining And Manufacturing Company | Electrical interconnection system and device |
| DE102004031993A1 (en) * | 2003-07-10 | 2005-02-17 | Sumitomo Wiring Systems, Ltd., Yokkaichi | Connector terminal for electronic-circuit board, includes pressing-in structures having radially-protruding pressing-in portions, such that position of each pressing-in portion mutually deviates, when viewed from axial direction |
| EP1605549A1 (en) * | 2004-06-09 | 2005-12-14 | Tyco Electronics AMP K.K. | Press-fit terminal |
| US20060216970A1 (en) * | 2005-03-28 | 2006-09-28 | Lear Corporation | Electrical connector terminal and method of producing same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8197264B1 (en) | 2011-03-02 | 2012-06-12 | Lear Corporation | Electrical connector |
| CN109923738A (en) * | 2016-08-23 | 2019-06-21 | 申泰公司 | Electric contact piece with the improved anchorage zone of impedance operator |
| CN109923738B (en) * | 2016-08-23 | 2021-11-30 | 申泰公司 | Electrical contact having an anchoring zone with improved impedance characteristics |
| US11374360B2 (en) | 2016-08-23 | 2022-06-28 | Samtec, Inc. | Electrical contacts having anchoring regions with improved impedance characteristics |
| USD965530S1 (en) | 2016-09-30 | 2022-10-04 | Samtec, Inc. | Vertical electrical connector |
| USD967770S1 (en) | 2016-09-30 | 2022-10-25 | Samtec, Inc. | Vertical electrical connector |
| USD1028904S1 (en) | 2016-09-30 | 2024-05-28 | Samtec, Inc. | Electrical contact arrangement |
| US11569616B2 (en) | 2018-07-06 | 2023-01-31 | Samtec, Inc. | Connector with top- and bottom-stitched contacts |
| CN113285259A (en) * | 2021-05-06 | 2021-08-20 | 中航光电科技股份有限公司 | Connector, metal terminal mounting structure and metal terminal |
| CN113285259B (en) * | 2021-05-06 | 2022-04-01 | 中航光电科技股份有限公司 | Connector, metal terminal mounting structure and metal terminal |
| CN113690670A (en) * | 2021-09-10 | 2021-11-23 | 东莞市昶通通讯科技有限公司 | Electric connector and device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| TW200810254A (en) | 2008-02-16 |
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