GB2210735A - Electrical connectors - Google Patents
Electrical connectors Download PDFInfo
- Publication number
- GB2210735A GB2210735A GB8721919A GB8721919A GB2210735A GB 2210735 A GB2210735 A GB 2210735A GB 8721919 A GB8721919 A GB 8721919A GB 8721919 A GB8721919 A GB 8721919A GB 2210735 A GB2210735 A GB 2210735A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrical
- contact
- housing
- conductor
- connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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
- 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
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/515—Terminal blocks providing connections to wires or cables
-
- 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
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
An electrical contact comprises an insulation-piercing portion including one or more tines (15) adapted to pierce the insulted covering of an insulated conductor (24) and to make an electrical connection with the electrical conductor therein, at least one post portion (17) adapted to be received in a plated through hole (21) of a printed circuit board (22), and a retaining portion (18) adapted to secure the contact within the housing (2) of an electrical connector (1). <IMAGE>
Description
ELECTRICAL CONNECTORS
This invention relates to electrical connectors and electrical contacts therefor. In particular the invention relates to transition connectors for providing an electrical connection between one or more insulated conductors and a printed circuit board. By the term insulated conductors there is herein meant to include solid conductors and stranded conductors together with other types of conductors such as tinsel conductors, whenever insulated by a covering of insulating material.
Conventional transition connectors include contacts which comprise a stem which can be inserted into the plated through holes of a printed circuit board and an insulation displacement slot in which an insulated conductor can be received and terminated. Insulation displacement is where the insulated conductor and contact are forced together, the contacts usually being slotted, such that the insulation covering the conductor is displaced from the conductor to allow the contact to form an electrical connection with the conductor.
It is an object of the present invention to provide an improvement on this type of electrical connector.
Accordingly there is provided an electrical contact comprising an insulation piercing portion including one or more tines adapted to pierce the insulating covering of an insulated conductor and make an electrical connection with the electrical conductor therein; at least one post portion adapted to be received in a plated through hole of a printed circuit board; and a retaining portion adapted to secure the contact within the housing of an electrical connector.
This gives the advantages of insulation piercing in a connector capable of providing an electrical connection between one or more insulated conductors and a printed circuit board. Conveniently the contact is formed as an integral unit with the insulation piercing portion, the at least one post portion, and the retaining portion each being integral parts thereof.
There is conveniently further provided on the contact a strain relief portion adapted to engage an insulated conductor which has been pierced by the one or more tines of the insulation piercing portion. With the strain relief being provided by a portion of the contact, there is accordingly no necessity for strain relief to be provided by the housing of the connector.
Conveniently the strain relief portion, the insulation piercing portion, the at least one post portion, and the retaining portion are each provided by a single integral contact.
Preferably the retaining portion comprises a leg adapted to be received in a complementary recess in the
housing of an electrical connector. The leg is
conveniently provided with a plurality of ribs adapted
to engage the sides of the complementary recess in the
housing of the electrical connector. In this way the
contact can be retained in the housing of a connector,
and yet still be movable with respect thereto to enable
termination of insulated conductors by the insulation
piercing portion.
The contact is preferably elongate and at least one
of the at least one post portions conveniently extends
laterally of the longitudinal axis of the contact. This allows the contacts to be received in a plated through hole of a printed circuit board in a first orientation,
namely with the longitudinal axis of the contact
parallel to the printed circuit board. Alternatively or
additionally at least one of the at least one post
portions extends along the longitudinal axis of the
contact. This allows the contact to be received in a
plated through hole of a printed circuit board in a
second orientation, namely with the longitudinal axis of
the contact perpendi cul ar to the printed circuit board.
In one convenient construction the contact is elongate
and has at least two post portions, at least one post
portion extending along the longitudinal axis of the contact and one or more post portions extending laterally of the longitudinal axis of the contact.
This allows the contact to be received in a plated through hole of a printed circuit board in either of the first or second orientations, with the unused post portion or portions preferably being removed from the contact prior to termination.
The invention further resides in an electrical connector for making an electrical connection between one or more insulated conductors and a printed circuit board, the connector incorporating one or more electrical contacts as herein described. In particular, an electrical connector for making an electrical connection between one or more insulated conductors and a printed circuit board comprises an insulated housing, the housing having one or more conductor receiving cavities and at least one aperture through which one or more introduced conductors may be induced into the one or more conductor receiving cavities, the housing further being provided with one or more contact receiving openings communicating between the one or more conductor receiving cavities and the exterior of the connector, and one or more recesses extending from the one or more contact receiving openings into the housing; the connector further including one or more electrical contacts each associated with a respective one or the one or more contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulating covering of one of the one or more insulated conductors and make an electrical connection with an electrical conductor therein, at least one post portion each adapted to be received in a plated through hole in a printed circuit board, and a retaining portion adapted to be received in one of the one or more recesses, the housing and the one or more electrical contacts being movable one relative to the other between a parked position in which the retaining portion of each of the one or more electrical contacts is partly inserted in one of the one or more recesses with the one or more tines being clear of the one or more conductor receiving cavities, and a terminated position in-which the retaining portion of each of the one or more electrical contacts is further inserted in one of the one or more recesses such that the one or more tines protrude into the one or more conductor receiving cavities.
The invention further resides in an electrical connector for making an electrical connection between a plurality of insulated conductors and a printed circuit board, the connector comprising an insulated housing, the housing having a conductor receiving cavity and an aperture through which the plurality of insulated conductors may be introduced into the conductor receiving cavity, the housing further being provided with a plurality of contact receiving openings communicating between the conductor receiving cavity and the exterior of the connector, and a plurality of recesses extending from each of the contact receiving openings into the housing; the connector further including a plurality of electrical contacts each associated with a respective one of the contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulation covering of one of the insulated conductors and make an electrical connection with the electrical conductor therein, at least one post portion each adapted to be received in a plated through hole in the printed circuit board, and a retaining portion adapted to be received in one of the recesses, the housing and the electrical contacts being movable one relative to the other between a parked position in which the retaining portion-of each of the electrical contacts is partly inserted in a respective one of the recesses with the one or more tines being clear of the conductor receiving cavity, and a terminated position in which the retaining portion of each of the electrical contacts is further inserted into a respective one of the recesses such that the one or more tines protrude into the conductor receiving ca-vity.
The invention also resides in a method of making an electrical connection between one or more insulated conductors and a printed circuit board comprising the steps of providing a connector comprising an insulating housing, the housing having one or more conductor receiving cavities and at least one aperture through which one or more insulated conductors may be introduced into the one or more conductor receiving cavities, the housing further being provided with one or more contact receiving openings communicating between the one or more conductor receiving cavities and the exterior of the connector, and one or more recesses extending from the one or more contact receiving openings into the housing; the connector further including one or more electrical contacts each associated with a respective one of the one or more contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulated covering of one of the one or more insulated conductors and make an electrical connection with an electrical conductor therein, at least one post portion each adapated to be received in plated through hole in a printed circuit board, and a retaining portion adapted to be received in one of the one or more recesses; assembling the one or more electrical contacts in the housing in a parked position such that the retaining portion of each of the one or more electrical contacts is partly inserted in one of the one or more recesses with the one or more tines being clear of the one or more conductor receiving cavities; inserting the at least one post portion of each of the one or more electrical contacts into a plated through hole of a printed circuit board and securing it in place; inserting one or more insulated conductors through the at least one aperture such that they are received in the one or more conductor receiving cavities; and moving the housing and the one or more electrical contacts one relative to the other into a terminating position in which the retaining portion of each of the one or more electrical contacts is further inserted in one of the one or more recesses such that the one or more tines protrude into the one or more conductor receiving cavities to pierce the insulating covering of one of the insulated conductors and make an electrical connection with the electrical conductor therein.
The invention will now be further described, by way of example only, with reference to the accompanying drawings in which:
Figure 1 is a cross-sectional view of a connector according to the invention shown in its parked position;
Figure 2 is a cross-sectional view of the connector of Figure 1, shown in its terminated position; and
Figure 3 is a cross-sectional view of an alternative embodiment of connector according to the invention, shown in its terminated position.
Referring to Figure 1 there is shown a connector shown generally at 1 and comprising an insulating housing 2 of plastics material. The housing 2 defines an elongate chamber 3, one end face 4 of housing 2 being provided with an aperture 5 through which the chamber 3 opens to the exterior of the connector. In similar fashion one side face 6 of the housing 2 is provided with a plurality of channels 7 which communicate between the chamber 3 and the exterior of the connector 1. The housing also has a plurality of recesses 8 extending from the side face 6 into the body of the housing 2.
Each of the channels 7 has a contact element 9 received therein. Each contact element 9 is of a one-piece integral construction and comprises a body 10 from which depends four sections 11, 12, 13 and 14.
Section 11 is a terminating section and comprises two sharp-edged tines 15 with a trough 16 therebetween. The tines 15 are received in the channel 7 and project towards the chamber 3. Section 12 is a post section and comprises an elongate post 17 extending laterally from the longitudinal axis of the contact element 9 in a direction opposite to that of the tines 15. Section 13 is a retaining section and comprises a leg 18 received in one of the recesses 8 in the housing of the connector. The leg 18 has a plurality of ribs 19 for engaging the sides of the recess 8. Section 14 is a strain relief section and comprises a round-nosed projection 20 adjacent the tines 15.
In use the contacts 9 are partly inserted into the channel 7 with the legs 18 being received in the recesses 8. The posts 17 are inserted through the plated through holes 21 of a printed circuit board 22, and soldered in position as shown at 23. A plurality of insulated conductors 24 are introduced through the aperture 5 and into the chamber 3. Then the housing 2 is moved relative to the contacts 9 and printed circuit board 22, such that the contacts 9 move further into the channel 7. This has the effect that the tines 15 move into contact with the insulated conductors 24 piercing their insulated covering and making an electrical connection with the conductors therein. Legs 18 are now more fully received in the recesses 8, and the strain relief projections 20 engage the insulated conductors 24 to resist their inadvertent removal.This is the position as shown in Figure 2, with the contacts 9 forming an electrical connection between the insulated conductors 24 and respective conductive tracks (not shown) of the printed circuit board 22.
Figure 3 illustrates an alternative embodiment of connector 1 in which like parts are designated with like reference numerals. Contacts 9 are as described with reference to Figures 1 and 2, except that the elongate post 17 extends along the longitudinal axis of the contact 9 as opposed to extending laterally as in
Figures 1 and 2. Thus the connector engages the printed circuit board not with its side face 6 but with the end face 25 opposite to the end face 4 having the aperture through which the insulated conductors are introduced into the connector. This version reduces the area of the printed circuit board occupied by the connector 1 and is suitable for situations in which space on the circuit board is at a premium. The termination of the insulated conductors 24 by movement of the housing 2 is exactly as described with reference to Figures 1 and 2.
It will be appreciated that some alterations to the construction and operation of the abovedescribed connector can be envisaged without departing from the scope of the present invention. In particular, as opposed to first soldering the posts 17 to the printed circuit board 22 and then moving the housing 2 to terminate the conductors, it is envisaged that the termination of the conductors within the connector can be carried out remote from the printed circuit board, with the contacts being soldered in position on the printed circuit board thereafter.
Claims (15)
1. An electrical contact comprising an insulation piercing portion including one or more tines adapted to pierce the insulated covering of an insulated conductor and to make an electrical connection with the electrical conductor therein; at least one post portion adapted to be received in a plated through hole of a printed circuit board; and a retaining portion adapted to secure the contact within the housing of an electrical connector.
2. An electrical contact according to Claim 1 wherein the contact is formed as an integral unit with the insulation piercing portion, the at least one post portion and the retaining portion each being an integral part thereof.
3. An electrical contact according to Claim 1 or
Claim 2 wherein there is further provided a strain relief portion adapted to engage an insulated conductor which has been pierced by the one or more tines of the insulation piercing portion.
4. An electrical contact according to Claim 3 wherein the strain relief portion, the insulation piercing portion, the at least one post portion and the retaining portion are each provided by a single integral contact.
5. An electrical contact according to any of
Claims 1 to 4 wherein the retaining portion comprises a leg adapted to be received in a complementary recess in the housing of an electrical connector.
6. An electrical contact according to Claim 5 wherein the leg is provided with a plurality of ribs adapted to engage the sides of the complementary recess in the housing of the electrical connector.
7. An electrical contact according to any of
Claims 1 to 6 wherein the contact is elongate and at least one of the at least one post portions extends laterally of the longitudinal axis of the contact.
8. An electrical contact according to any of
Claims 1 to 6 wherein the contact is elongate and at least one of the at least one post portions extends along the longitudinal axis of the contact.
9. An electrical contact according to any of
Claims 1 to 6 wherein the contact is elongate and has at least two post portions, at least one post portion extending along the longitudinal axis of the contact and one or more post portions, extending laterally of the longitudinal axis of the contact.
10. An electrical contact substantially as hereinbefore described with reference to the accompanying drawings.
11. An electrical connector for making an electrical connection between one or more insulated conductors and a printed circuit board, the conductor incorporating one or more electrical contacts according to any of
Claims 1 to 10.
12. An electrical conductor for making an electrical connection between one or more insulated conductors and a printed circuit board, the connector comprising an insulated housing, the housing having one or more conductor receiving cavities and at least one aperture through which one or more insulated conductors may be introduced into the one or more conductor receiving cavities, the housing further being provided with one or more contact receiving openings communicating between the one or more conductor receiving cavities and the exterior of the connector, and one or more recesses extending from the one or more contact receiving openings into the housing; the connector further including one or more electrical contacts each associated with a respective one of the one or more contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulated covering of one of the one or more insulated conductors and make an electrical connection with an electrical conductor therein, at least one post portion each adapted to be received in a plated through hole in a printed circuit board, and a retaining portion adapted to be received in one of the one or more recesses, the housing and the one or more electrical contacts being movable one relative to the other between a parked position in which the retaining portion of each of the one or more electrical contacts is partly inserted in one of the one or more recesses with the one or more tines being clear of the one or more conductor receiving cavities, and a terminated position in which the retaining portion of each of the one or more electrical contacts is further inserted in one of the one or more recesses such that the one or more tines protrude into the one or more conductor receiving cavities.
13. An electrical connector for making an electrical connection between a plurality of insulated conductors and a printed circuit board, the connector comprising an insulated housing, the housing having a conductor receiving cavity and an aperture through which the plurality of insulated conductors may be introduced into the conductor receiving cavity, the housing further being provided with a plurality of contact receiving openings communicating between the conductor receiving cavity and the exterior of the connector, and a plurality of recesses extending from each of the contact receiving openings into the housing; the connector further including a plurality of electrical contacts each associated with a respective one of the contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulated covering of one of the insulated conductors and make an electrical connection with the electrical conductor therein, at least one post portion each adapted to be received in a plated through hole in the printed circuit board, and a retaining portion adapted to be received in one of the recesses, the housing and the electrical contacts being movable one relative to the other between a parked position in which the retaining portion of each of the electrical contacts is partly inserted in a respective one of the recesses with the one or more tines being clear of the conductor receiving cavity, and a terminated position in which the retaining portion of each of the electrical contacts is further inserted into a respective one of the recesses such that the one or more tines protrude into the conductor receiving cavity.
14. An electrical connector substantially as hereinbefore described with reference to the accompanying drawings.
15. A method of making an electrical connection between one or more insulated conductors and a printed circuit board comprising the steps of providing a connector comprising an insulating housing, the housing having one or more conductor receiving cavities and at least one aperture through which one or more insulated conductors may be introduced into the one or more conductor receiving cavities, the housing further being provided with one or more contact receiving openings communicating between the one or more conductor receiving cavities and the exterior of the conductor, and one or more recesses extending from the one or more contact receiving openings into the housing; the connector further including one or more electrical contacts each associated with a respective one of the one or more contact receiving openings and each comprising an insulation piercing portion including one or more tines adapted to pierce the insulated covering of one of the one or more insulated conductors and make an electrical connection with an electrical conductor therein, at least one post portion each adapted to be received in a plated through hole in a printed circuit board, and a retaining portion adapted to be received in one of the one or more recesses; assembling the one or more electrical contacts in the housing in a parked position such that the retaining portion of each of the one or more electrical contacts is partly inserted in one of the one or more recesses with the one or more tines being clear of the one or more conductor receiving cavities; inserting the at least one post portion of each of the one or more electrical contacts into a plated through hole of a printed circuit board and securing it in place; inserting one or more insulated conductors through the at least one aperture such that they are received in the one or more conductor receiving cavities; and moving the housing and the one or more electrical contacts one relative to the other into a terminating position in which the retaining portion of each of the one or more electrical contacts is further inserted in one of the one or more recesses such that the one or more tines protrude into the one or more conductor receiving cavities to pierce the insulating covering of one of the insulated conductors and make an electrical connection with the electrical conductor therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8721919A GB2210735B (en) | 1987-09-17 | 1987-09-17 | Electrical connectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8721919A GB2210735B (en) | 1987-09-17 | 1987-09-17 | Electrical connectors |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8721919D0 GB8721919D0 (en) | 1987-10-21 |
| GB2210735A true GB2210735A (en) | 1989-06-14 |
| GB2210735B GB2210735B (en) | 1991-12-04 |
Family
ID=10623955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8721919A Expired - Lifetime GB2210735B (en) | 1987-09-17 | 1987-09-17 | Electrical connectors |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2210735B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248528A (en) * | 1990-08-08 | 1992-04-08 | Amp Inc | Wire-to-wire shielded electrical connecting means |
| DE19753269A1 (en) * | 1997-12-01 | 1999-06-02 | Grote & Hartmann | Plug device for electrical water-stop valve for washing machine or dishwasher |
| EP1280237A3 (en) * | 2001-07-23 | 2003-12-03 | WÜRTH ELEKTRONIK GmbH & Co. KG | Connector for printed board |
| WO2006002925A1 (en) * | 2004-06-30 | 2006-01-12 | Fci | Very high frequency electrical connector |
| WO2015162442A1 (en) * | 2014-04-24 | 2015-10-29 | Bárán József László | Procedure for manufacturing a cable connector device with blade and the cable connector device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215497A (en) * | 1967-06-05 | 1970-12-09 | Minnesota Mining & Mfg | Multiple contact connector for connecting flat cable to printed circuit board |
-
1987
- 1987-09-17 GB GB8721919A patent/GB2210735B/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1215497A (en) * | 1967-06-05 | 1970-12-09 | Minnesota Mining & Mfg | Multiple contact connector for connecting flat cable to printed circuit board |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2248528A (en) * | 1990-08-08 | 1992-04-08 | Amp Inc | Wire-to-wire shielded electrical connecting means |
| GB2248528B (en) * | 1990-08-08 | 1994-06-01 | Amp Inc | Wire-to-wire electrical connecting means |
| DE19753269A1 (en) * | 1997-12-01 | 1999-06-02 | Grote & Hartmann | Plug device for electrical water-stop valve for washing machine or dishwasher |
| EP1280237A3 (en) * | 2001-07-23 | 2003-12-03 | WÜRTH ELEKTRONIK GmbH & Co. KG | Connector for printed board |
| WO2006002925A1 (en) * | 2004-06-30 | 2006-01-12 | Fci | Very high frequency electrical connector |
| WO2015162442A1 (en) * | 2014-04-24 | 2015-10-29 | Bárán József László | Procedure for manufacturing a cable connector device with blade and the cable connector device |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2210735B (en) | 1991-12-04 |
| GB8721919D0 (en) | 1987-10-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19920917 |