GB2058491A - Facilitating insertion of a printed circuit board in a connector - Google Patents
Facilitating insertion of a printed circuit board in a connector Download PDFInfo
- Publication number
- GB2058491A GB2058491A GB8028632A GB8028632A GB2058491A GB 2058491 A GB2058491 A GB 2058491A GB 8028632 A GB8028632 A GB 8028632A GB 8028632 A GB8028632 A GB 8028632A GB 2058491 A GB2058491 A GB 2058491A
- Authority
- GB
- United Kingdom
- Prior art keywords
- connector
- printed circuit
- circuit board
- inlet
- guide piece
- 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
- 230000037431 insertion Effects 0.000 title claims description 6
- 238000003780 insertion Methods 0.000 title claims description 6
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- H01R12/70—Coupling devices
- H01R12/7005—Guiding, mounting, polarizing or locking means; Extractors
-
- 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
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
Landscapes
- Coupling Device And Connection With Printed Circuit (AREA)
- Combinations Of Printed Boards (AREA)
Abstract
A pre-centring device, for use when inserting a printed circuit board or the like (5) in a connector (1), includes a guide part (6) disposed near the end connector (1) and having at least two guide tabs (10) which centre the board (5) near the inlet (4) of the connector. <IMAGE>
Description
SPECIFICATION
A pre-centring device for use when inserting an
electric circuit board in a connector
The invention relates to devices for guiding
electric circuit boards such as printed circuit
boards, equipment circuit support boards or the
like during insertion in a multi-point connector. It
is applicable in particular to telecommunications
and to the electronics industry for boards which
have a high concentration of connection points
and a narrow inlet width for the board at the
female connector.
In electrical equipment racks the circuits are
generally in the form of printed circuit boards and
equipment circuit support boards. The circuit
boards are placed side by side in cells which are
arranged in the compartments of an equipment
cabinet or of a frame. At the time of assembly the
detachable boards are plugged into the connectors placed at the backs of the cells.
From a given size upwards circuit boards are
generally not very rigid and consequently become warped during handling and treatment. This
makes it difficult to position them in a female
connector. To facilitate insertion of the boards in a
connector, it is known to fix stiffening braces on the component side, by rivetting, for example. The
use of such stiffening braces gives rise to a
number of disadvantages including waste of space on the board, increase in the weight of the board, and increase in the cost of manufacture and of installation.
Preferred embodiments of the present
invention overcome said disadvantages by
providing a pre-centring device which makes it
possible to use boards without stiffening braces.
The invention provides a pre-centring device for
use with a fixed connector located in a cell of an
electric equipment rack to guide an electric circuit
board during insertion therein, the device
comprising a guide piece disposed near an end of the connector and having at least two guide tabs which centre the board near the inlet to the
connector.
An embodiment of a board guide in accordance with the invention is described hereinafter with
reference to the single figure of the accompanying drawing.
The figure illustrates a connector 1 intended, for example, to be fixed by means of a screw 2 in the back of a cell or of a module in an equipment
rack e.g. one of the type described in French patent No 73 30 537 (published under the No 21 97 360).
The rear of the connector has connection pins 3 and its front has a slot 4 in which a printed circuit board 5 is to be inserted.
During insertion and withdrawal of a printed circuit board into and from a cell, the printed
circuit board engages in a slideways (not shown) qf the cell and slides therein.
The connector includes a guide piece 6 to centre the printed circuit board at the inlet 4 of the connector. Said guide piece is made of a thermoplastic material and is set astride one end of the connector. Said guide piece 6 includes: a base plate 7 provided with a hole 8 by which it is fixed to the connector by means of the screw 2 which also serves to fix the connector in the back of the cell; and two side plates 9 straddling the sides 1 3 of the connector and ending in two tabs 10 disposed perpendicular to the side plates 9 and placed on each side of the top of the connector slot 4. Each of the tabs 10 has a large camming surface or chamfer 11 which guides the edge of the printed circuit board 5 towards the connector inlet 4 which itself has a smaller inlet chamfer. The chamfers of the tabs are appreciably larger than the inlet chamfer of the connector.In a known manner the printed circuit board 5 includes contact tracks 12 designed to come into contact with a series of corresponding connector parts inside the connector 1 when the printed circuit board is plugged into the connector. Even if said printed circuit board is warped the tabs 10 installed on each side of the slot 4 guide it and pre-centre it in the slot thereby engaging it correctly in the connector.
Another guide part 6 is placed at the other end of the connector so as to ensure proper parallelism between the printed circuit board and the inlet of the connector.
A cell for an equipment rack can include several, e.g. 1 6 or 26 connectors fixed in parallel and designed to accommodate the same number of equipment circuit boards. Because the side plates 9 of the guide piece are thin, e.g. 5mm, assembling such devices on the connectors does not reduce the number of connectors which can be placed in a cell.
In one variant, to centre the printed circuit board along a greater part of its height, the guide piece may include several pre-centring tabs disposed parallel to one another.
A resilient plastics guide piece can be fitted on various forms of connector. Further, its size is independent of the length of the connector. Indeed, in practice it ensures proper guidance of the edge of a printed circuit board however long said edge may be.
In another variant, the guide piece can be integrally moulded with the connector.
The advantages of the pre-centring device in accordance with the invention are as follows:
The device allows components to make full use of the printed circuit board area. I.e. the space usually occupied by stiffening braces on printed circuit boards is saved.
Further, as far as concerns alignment between the guide piece and the connector, manufacturing tolerances are not so strict.
Manufacturing costs are reduced due to the fact that manufacturing tolerances are not so strict, that there are no stiffening braces or fixing parts for said braces and that rivetting and assembling the printed circuit boards is simplified.
Use of the invention ensures great reliability inserting printed circuit boards and supports components in connectors. When a printed circuit board is inserted in the slot 4 of a connector, the chamfers 11 of the tabs guide the edge thereof, then the tabs themselves pre-centre the printed circuit board in the axial plane of the slot, the printed circuit board being finally centred by fixed contacts 14 of the connector which contacts guide the contact tracks 1 2 of the printed circuit board.
Claims (7)
1. A pre-centring device for use with a fixed connector located in a cell of an electric equipment rack, to guide an electric circuit board during insertion therein, the device comprising a guide piece disposed near an end of the connector and having at least two guide tabs which centre the board near the inlet to the connector.
2. A device according to claim 1, including two side plates which straddle the connector and have at least one tab on each side of the inlet to the connector into which the board is plugged.
3. A device according to claim 1 or 2, wherein the tabs have wide chamfers which pre-centre the boards towards the inlet of the connector which itself has a smaller chamber at its inlet for final centring.
4. A device according to any one of claims 1 to 3, wherein the plastics guide piece is constituted by a component separate from the connector and fixed thereon by a screw or a rivet thereof.
5. A device according to either any one of claims 1 to 3, wherein the guide piece is integrally moulded with the connector.
6. A device according to any one of claims 1 to 5, wherein the guide piece includes a plurality of pre-centring tabs disposed parallel to one another.
7. A pre-centring device substantially as herein described with reference to and as illustrated in the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7922281A FR2465330A1 (en) | 1979-09-06 | 1979-09-06 | EQUIPMENT CARD INSERTION PRECENTER DEVICE IN CONNECTOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2058491A true GB2058491A (en) | 1981-04-08 |
| GB2058491B GB2058491B (en) | 1984-08-08 |
Family
ID=9229402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8028632A Expired GB2058491B (en) | 1979-09-06 | 1980-09-04 | Facilitating insertion of printed circuit board in a connector |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE885011A (en) |
| DE (1) | DE3033498A1 (en) |
| FR (1) | FR2465330A1 (en) |
| GB (1) | GB2058491B (en) |
| IT (2) | IT1129156B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480886A (en) * | 1982-03-02 | 1984-11-06 | Zetronic S.P.A. | Quick connector for a multi-conductor circuit |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE469503B (en) * | 1987-05-20 | 1993-07-12 | Ericsson Telefon Ab L M | DEVICE MAKES A FRAME CARD WITH A FRAME |
| DE4032801C2 (en) * | 1990-10-16 | 1993-10-14 | Triumph Adler Ag | Plug connection arrangement for mechanical and electrical plug connection of electronic device units |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE571527A (en) * | 1957-09-26 | |||
| US2957095A (en) * | 1958-09-10 | 1960-10-18 | Eitel Mccullough Inc | Electron tube socket |
| FR1361752A (en) * | 1963-07-04 | 1964-05-22 | Solartron Electronic Group | PCB assembly retaining frame |
| GB1034236A (en) * | 1964-05-25 | 1966-06-29 | Gen Electric Co Ltd | Improvements in or relating to electric connectors |
| DE2732519A1 (en) * | 1977-07-19 | 1979-02-01 | Daut & Rietz Kg | Contact spring strip for circuit boards - includes guiding strips with slots for boards with springy projections used as clamps |
-
1979
- 1979-09-06 FR FR7922281A patent/FR2465330A1/en active Granted
-
1980
- 1980-09-01 BE BE1/9943A patent/BE885011A/en not_active IP Right Cessation
- 1980-09-04 GB GB8028632A patent/GB2058491B/en not_active Expired
- 1980-09-05 IT IT8068380A patent/IT1129156B/en active
- 1980-09-05 DE DE19803033498 patent/DE3033498A1/en not_active Withdrawn
- 1980-09-05 IT IT8053494U patent/IT8053494V0/en unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4480886A (en) * | 1982-03-02 | 1984-11-06 | Zetronic S.P.A. | Quick connector for a multi-conductor circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| IT8068380A0 (en) | 1980-09-05 |
| IT8053494V0 (en) | 1980-09-05 |
| FR2465330A1 (en) | 1981-03-20 |
| GB2058491B (en) | 1984-08-08 |
| FR2465330B1 (en) | 1982-11-26 |
| BE885011A (en) | 1981-03-02 |
| IT1129156B (en) | 1986-06-04 |
| DE3033498A1 (en) | 1981-04-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |