GB2112593A - An improved electric connector assembly - Google Patents
An improved electric connector assembly Download PDFInfo
- Publication number
- GB2112593A GB2112593A GB08236385A GB8236385A GB2112593A GB 2112593 A GB2112593 A GB 2112593A GB 08236385 A GB08236385 A GB 08236385A GB 8236385 A GB8236385 A GB 8236385A GB 2112593 A GB2112593 A GB 2112593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- body part
- body parts
- rewirable
- connector assembly
- recess
- 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
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/28—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable
- H01R24/30—Coupling parts carrying pins, blades or analogous contacts and secured only to wire or cable with additional earth or shield contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- 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
- H01R13/66—Structural association with built-in electrical component
- H01R13/68—Structural association with built-in electrical component with built-in fuse
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2103/00—Two poles
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
In a non-rewirable electric plug assembly or other electric connector assembly, the preformed base 1 and cover 11 forming the plug housing are secured together by at least two permanent securing means, each of which is independent of the other and neither of which can be deliberately disengaged without effecting permanent damage to the base and/or cover. Preferably, the base 1 and cover 11 are locked together by a snap fitting 9, 10, 19 and abutting boundary edges 14 of the base and cover are welded together or bonded together by adhesive. <IMAGE>
Description
SPECIFICATION
An improved electric connector assembly
This invention relates to electric connector assemblies of the kind comprising an electric connector whose electric contact or contacts is or are permanently electrically connected to the conductor or conductors of a length of flexible electric cable. The invention is especially, but not exclusively, concerned with electric connector assemblies of this kind in which the electric connector is a three-pin electric plug whose pin terminals are permanently electrically connected to the ends of associated conductors of a length of flexible electric cable, such an electric plug assembly being suitable for use in domestic and similar wiring systems and being generally referred to as a non-rewirable electric plug assembly.
In the one known form of non-rewirable plug assembly, the insulating body of the plug is formed of two separately formed premoulded body parts which are welded or otherwise permanently secured together to form a housing enclosing the electrical connections between the cable conductors and the pin terminals, the housing having in one of its walls an opening for entry of the cable.
A non-rewirable electric plug assembly of this known form has the serious disadvantage that, should the weld or adhesive permanently securing together the two body parts of the insulating housing of the plug fail at the time a user is attempting to remove the plug from a socket oulet, then the cover of the plug body will be removed to expose live metal parts that will be highly dangerous.
It is an object of the present invention to provide an improved non-rawirable electric connector assembly having a housing formed of two separately formed premoulded body parts permanently secured together in which risk of unintentional separation of the two body parts is substantially eliminated.
According to the invention, in the improved electric connector assembly, two separately formed premoulded body parts forming the connector housing are secured together by at least two permanent securing means, each of which is independent of the other and neither of which can be deliberately disengaged without effecting permanent damage to one or both of the body parts of the housing.
Preferably, one or each body parts has at least one resilient lug which effects a snap engagement behind a step on, or within a recess in, the other body part when boundary edges of the two body parts are in tight interfacial engagement and said abutting boundary edges are welded together or bonded together by means of a suitable adhesive.
Preferably, also, one or each body part has a plurality of resilient lugs mutually spaced around its periphery, each of which effects a snap engagement behind a continuous or discontinuous step on, or within a continuous or discontinuous recess in, the other body part.
It will be appreciated that, should the weld or adhesive securing together the body parts of the housing fail when the connector assembly is being disconnected from another connector with which it is mated, separation of the two body parts of the housing will be prevented by the resilient lug or lugs.
Furthermore, preferably the or each step on or recess in one or each body part to be engaged by a resilient lug on the other body part is located at a position remote from the boundary edge of the body part by which it is carried so that disengagement of the resilient lug or lugs by deliberate insertion of a sharp blade between the tightly abutting boundary edges of the body parts is extremely difficult, if not impossible, without effecting permanent damage to one or each body part.
Where the non-rewirable connector assembly is an electric plug assembly, preferably one of the two body parts carries the plug pins and associated pin terminals and has a plurality of resilient lugs at mutually spaced positions around its periphery, the other body part comprising a cover having on or in, and at positions remotely spaced from the boundary edge of, its peripheral wall steps or recesses for engagement by the resilient lugs of the other body part.
The invention is further illustrated by a description, by way of example, of a preferred non-rewirable 1 3A electric plug assembly with reference to the accompanying diagrammatic drawing which shows an exploded view of the electric plug assembly.
Referring to the drawing, the non-rewirable 1 3A electric plug assembly comprises a premoulded plug base 1 having, integral with the base, one part 2 of a cable entry and a premoulded cover 11 having, integral with the cover, one part 1 2 of the cable entry.
Protruding through holes in the plug base 1, are live plug pin 3, neutral plug pin 4 and earth plug pin 5, and, housed in a fuse recess 6 in the base 1, are two resilient fuse contacts 7 and 8 for reception of a cartridge fuse F which will usually be supported on a fuse carrier (not shown) of electrically insulating material which, when the fuse is gripped in the fuse contacts, is a loose fit in the recess 6.
The fuse contact 7 is electrically connected to the live plug pin 3. The live conductor of a flexible wiring cable C is permanently connected to the fuse contact 8, the neutral conductor of the cable is permanently connected to the neutral pin 4 and the earth conductor of the cable is permanently connected to the earth pin 5. Upstanding from the upper surface of the base 1 are six resilient lugs 9 which are mutually spaced around the periphery of the base and each of which has a shoulder 10.
The premoulded cover 11 has mutually spaced around its peripheral wall 13, and at a position remote from the boundary edge 14 of the wall, six steps 19.
When the base 1 and cover 11 of the electric plug assembly are permanently secured together, the shoulder 10 on each resilient lug 9 effects a snap engagement behind the associated step 1 9 on the cover, and the boundary edge 1 4 of the peripheral wall 1 3 and the boundary edge of the part 1 2 of the cover are in tight inter-facial engagement with and are welded to the boundary edges of the base 1 and of the part 2 of the base.
It will be appreciated that the welded boundary edges of the body and cover and the inter-engaging resilent lugs and steps on the body and cover are independent of one another and neither can be deliberately disengaged without effecting permanent damage to one or both of the base and cover of the plug assembly.
Claims (6)
1. A non-rewirable electric connector assembly having a housing formed of two separately formed premoulded body parts permanently secured together, wherein the two premoulded body parts are secured together by at least two permanent securing means, each of which is independent of the other and neither of which can be deliberately disengaged without effecting permanent damage to one or both of the body parts of the housing.
2. A non-rewirable electric connector assembly having a housing formed of two separately formed premoulded body parts permanently secured together, wherein one or each body part has at least one resilient lug which effects a snap engagement behind a step on, or within a recess in, the other body part when boundary edges of the two body parts are in tight inter-facial engagement and said abutting boundary edges are welded together or bonded together by means of a suitable adhesive, neither the or each inter-engaging lug and step or recess nor the welded or bonded boundary edges of the two body parts being deliberately disengageable without effecting permanent damage to one or both of the body parts of the housing.
3. A non-rewirable electric connector assembly as claimed in Claim 2, wherein one or each body part has a plurality of resilient lugs mutually spaced around its periphery, each of which effects a snap engagement behind a continuous or discontinuous step on, or within a continuous or discontinuous recess in, the other body part.
4. A non-rewirable electric connector assembly as claimed in Claim 2 or 3, wherein the or each step on or recess in one or each body part to be engaged by a resilient lug on the other body part is located at a position remote from the boundary edge of the body part by which it is carried so that disengagement of the resilient lug or lugs by deliberate insertion of a sharp blade between the tightly abutting boundary edges of the body parts is extremely difficult without effecting permanent damage to one or each body part.
5. A non-rewirable connector assembly as claimed in Claim 1, wherein the connector is an electric plug and wherein one of the two body parts carries the plug pins and associated pin terminals and has a plurality of resilient lugs at mutually spaced positions around its periphery and the other body part comprises a cover having on or in, and at positions remotely spaced from the boundary edge of, its peripheral wall a continuous or discontinuous step or recess for engagement by the resilient lugs of the other body part.
6. A non-rewirable electric plug assembly substantially as hereinbefore described with reference to and as shown in the accompanying drawing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08236385A GB2112593B (en) | 1981-12-22 | 1982-12-22 | An improved electric connector assembly |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8138518 | 1981-12-22 | ||
| GB08236385A GB2112593B (en) | 1981-12-22 | 1982-12-22 | An improved electric connector assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2112593A true GB2112593A (en) | 1983-07-20 |
| GB2112593B GB2112593B (en) | 1985-11-27 |
Family
ID=26281590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB08236385A Expired GB2112593B (en) | 1981-12-22 | 1982-12-22 | An improved electric connector assembly |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2112593B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4239721A1 (en) * | 1992-11-26 | 1994-06-01 | Taller Gmbh | Plug bridge for an electrical contact plug consisting of an insulating body and a protective cap |
| GB2274026A (en) * | 1992-05-15 | 1994-07-06 | Kainstar Limited | Electrical plug |
| EP0616389A2 (en) * | 1993-03-16 | 1994-09-21 | Rutland Gilts Limited | Electrical connector |
-
1982
- 1982-12-22 GB GB08236385A patent/GB2112593B/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2274026A (en) * | 1992-05-15 | 1994-07-06 | Kainstar Limited | Electrical plug |
| GB2274026B (en) * | 1992-05-15 | 1996-09-25 | Kainstar Limited | Electrical plug assembly |
| DE4239721A1 (en) * | 1992-11-26 | 1994-06-01 | Taller Gmbh | Plug bridge for an electrical contact plug consisting of an insulating body and a protective cap |
| GB2273006A (en) * | 1992-11-26 | 1994-06-01 | Taller Gmbh | Electrical plug insulator and protective cap arrangement |
| GB2273006B (en) * | 1992-11-26 | 1996-08-07 | Taller Gmbh | Plug bridge comprising an insulator and a protective cap for an electrical plug |
| EP0616389A2 (en) * | 1993-03-16 | 1994-09-21 | Rutland Gilts Limited | Electrical connector |
| EP0616389A3 (en) * | 1993-03-16 | 1995-02-22 | Richard Drewnicki | Electrical connector. |
| US5626495A (en) * | 1993-03-16 | 1997-05-06 | Rutland Gilts Limited | Screwless connector |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2112593B (en) | 1985-11-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7530843B1 (en) | Sealed electrical terminal | |
| US4341428A (en) | Interconnection system for shielded electrical cable | |
| JP3127247B2 (en) | Multi-pole electrical insertion device | |
| US5890922A (en) | Electrical connector | |
| JPS629985B2 (en) | ||
| JPS5826469A (en) | Electric connector | |
| EP0128472A2 (en) | Field repairable molded connector | |
| EP1315249A2 (en) | Connector position assurance apparatus, methods and articles of manufacture | |
| EP1233477B1 (en) | Waterproof connector used for a flexible flat cable | |
| US4089579A (en) | Ribbon connector constructions | |
| EP0001885A1 (en) | Electrical connector assembly including latching means | |
| US4932875A (en) | Multipolar connector | |
| US4834668A (en) | Electrical connector (cut-off through the cover) | |
| US4702712A (en) | Keyed insulator apparatus | |
| EP0016269B1 (en) | An improved electric plug assembly | |
| JPH07153523A (en) | Simple water-proof connector | |
| GB2112593A (en) | An improved electric connector assembly | |
| EP0035861B1 (en) | Electrical contact for mating with a flat tab male contact | |
| JPH05509438A (en) | electrical coupling device | |
| EP0634819B1 (en) | Method and apparatus for mechanically and electrically coupling metal terminals in a housing | |
| EP0585562B1 (en) | Connector | |
| JPH084021B2 (en) | Telephone cable connector | |
| CN109980471B (en) | Bus bar assembly | |
| GB2112591A (en) | An improved electric plug assembly | |
| CN101636882A (en) | Electrical connector with ferrite block assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |