EP1045484A1 - Shielded electrical connector - Google Patents
Shielded electrical connector Download PDFInfo
- Publication number
- EP1045484A1 EP1045484A1 EP99107017A EP99107017A EP1045484A1 EP 1045484 A1 EP1045484 A1 EP 1045484A1 EP 99107017 A EP99107017 A EP 99107017A EP 99107017 A EP99107017 A EP 99107017A EP 1045484 A1 EP1045484 A1 EP 1045484A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shield
- housing
- electrical connector
- shielded electrical
- 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.)
- Withdrawn
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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
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6581—Shield structure
- H01R13/6582—Shield structure with resilient means for engaging mating connector
Definitions
- This invention generally relates to the art of electrical connectors and, particularly, to connectors which are shielded against ingress and egress of electromagnetic and radio frequency interferences.
- EMI electromagnetic interference
- RFID radio frequency interference
- a typical electrical connector includes a dielectric housing mounting a plurality of conductive terminals.
- the housing may have a forward mating section.
- shields are provided about the dielectric housing and, particularly, the mating section thereof.
- Such shields often are fabricated of stamped and formed conductive sheet metal material. The sheet material is stamped and then formed or folded into an enclosure for the connector housing.
- One of the problems with such shields is that they often are made of multiple components which cause EMI "leakage" and the components are not held together by sufficiently strong engaging means.
- the present invention is directed to solving these problems in a multi-component shield which is simple and inexpensive to manufacture and assemble.
- An object, therefore, of the invention is to provide a new and improved shielded electrical connector of the character described.
- the shielded connector includes a dielectric housing having a front mating end for interfacing with a complementary mating connector.
- a plurality of terminals are mounted on the housing and include contact portions for engaging appropriate terminals of the mating connector.
- First and second shields of sheet metal material substantially surround the housing.
- the first shield includes a clamping arm projecting therefrom.
- the second shield includes a hole for receiving the clamping arm of the first shield. The clamping arm of the first shield is inserted through the hole in the second shield and is bent into engagement with the second shield to hold the shields together about the housing.
- the housing includes a rear end, a top wall and opposite side walls.
- the first shield is a main shield mounted on the housing about at least the top wall and opposite side walls thereof. A pair of the clamping arms project rearwardly from opposite sides of the main shield.
- the second shield is a rear shield about the rear end of the housing and includes a pair of the holes for receiving the clamping arms of the first shield.
- the rear shield having recessed areas into which the clamping arms are bent.
- the rear shield is formed by a rear wall and side flanges projecting forwardly from the rear wall overlapping the opposite sides of the main shield.
- the holes in the rear shield are located at the junctures of the rear wall and the side flanges thereof.
- a first embodiment of a shielded electrical connector is generally designated 10.
- the connector includes a dielectric housing, generally designated 12 (Fig. 2), substantially surrounded by a shield means which includes a first or main shield, generally designated 14, and a second or rear shield, generally designated 16.
- a plurality of terminals, generally designated 18 (Fig. 2), are mounted on housing 12 and include contact portions 18a (Fig. 3) for engaging appropriate terminals of a complementary mating connector.
- housing 12 is a one-piece structure unitarily molded of dielectric material such as plastic or the like.
- the housing includes a top wall 20 and opposite side walls 22.
- the housing defines a front mating end 24 of the connector as seen in Figure 3, and the housing has a rear end 26 as seen in Figure 2.
- the housing includes a pair of generally parallel plug boards or terminal platforms 28 (Fig. 3).
- Terminals 18 include tail portions 18b depending from the housing for insertion into appropriate holes in a printed circuit board and for connection, as by soldering, to appropriate circuit traces on the board and/or in the holes.
- the terminals are bent at right angles as best seen in Figure 2, so that contact portions 18a of the terminals extend forwardly into the housing toward the front mating end 24 thereof.
- First or main shield 14 is stamped and formed of sheet metal material and includes a top plate 30 and side plates 32 positioned over top wall 20 and side walls 22, respectively, of housing 12. Side flanges 30a of the top plate overlap the top edges of side plates 32. A pair of tabs 30b at the rear of the top plate are bent into engagement within recesses at the rear edge of top wall 20 of the housing. A pair of contact tabs 30c of top plate 30 and 32c of side plates 32 are bent inwardly near the front mating end of the connector for engaging an appropriate shield of the complementary mating connector. Each side plate 32 also has a pair of mounting legs 32d for insertion into appropriate mounting holes in the printed circuit board. The mounting legs also can serve as grounding legs for engaging appropriate ground circuits on the board and/or in the mounting holes in the board.
- main shield 14 also has a front plate 34 formed with a pair of openings or receptacles 34a for receiving plug portions of the complementary mating connector.
- a pair of grounding arms 32e project forwardly from the front edges of side plates 32 and are bent in front of front plate 34 in registry with a pair of cutouts 34b in the front plate. Arms 32e form grounding fingers at the front of connector 10 for engaging the shield of the complementary mating connector or for engaging a housing within which the connector is mounted, as will be seen hereinafter.
- the arms or grounding fingers can be displaced into cutouts 34b in front plate 34.
- a pair of clamping arms 36 project rearwardly of front shield 14. Specifically, the clamping arms project rearwardly from the rear edges of side plates 32 of the main shield.
- Rear shield 16 includes a rear plate or wall 38 with a pair of side flanges 39 projecting forwardly of the rear plate in overlapping relationship along the rear edges of side plates 32 of the front shield.
- a pair of holes 40 are formed in rear shield 16 at the junctures between rear plate 38 and side flanges 39.
- the rear plate includes recessed portions 42 which form recessed areas for receiving clamping arms 36.
- rear shield 16 is assembled in the direction of arrow "A" (Fig. 2).
- clamping arms 36 of front shield 14 are inserted through holes 40 in rear shield 16.
- clamping arms 36 are bent inwardly as shown in Figure 1 into recessed areas 42 of rear plate 38 of the rear shield. The clamping arms therefore are flush with the rear plate of the rear shield.
- Figure 4 simply shows one application of shielded connector 10 mounted within a housing 44 which may be a computer housing.
- a mating connector-receiving hole 46 is divided by a transverse strip 48 which is engaged by grounding fingers 32e (Fig. 3) of front shield 14 of the connector.
- the split hole 46 is aligned with receptacles 34a (Fig. 3) in front shield 14 about housing 12 of connector 10.
- Figures 5-7 show a second embodiment of a shielded electrical connector, generally designated 10A, incorporating the concepts of the invention.
- Connector 10A is very similar to connector 10 except for the configuration of a rear shield 16A of connector 10A. Therefore, like numerals have been applied in Figures 5-7 corresponding to like components described above in relation to connector 10 in Figures 1-3.
- housing 12 and the front or main shield 14 are identical and the structure of the housing and the main shield will not be repeated in relation to connector 10A of Figures 5-7.
- rear shield 16A includes a pair of side plates or walls 50 which replace flanges 39 of rear shield 16 in first connector 10.
- Side plates 50 extend all the way forwardly to the front of the connector and include tabs 52 which are bent inwardly into receptacles 34a in front plate 34 of main shield 14.
- a pair of outwardly flared grounding fingers 54 also project forwardly of side plates 50 of rear shield 16A.
- main shield 14 of second connector 10A includes clamping arms 36 which are inserted into holes 40 in rear shield 16A and are bent into recessed areas 42 of the rear shield.
- Figure 8 shows second connector 10A mounted within a housing 56 having a single hole 58 instead of the split hole 46 (Fig. 4) for first connector 10. With the single hole 58, grounding fingers 54 of rear shield 16A of the second connector 10A engage the inside of the housing at the outsides of hole 58.
- FIG. 9 shows a shielded electrical connector, generally designated 60, according to the prior art.
- the connector includes a dielectric housing, generally designated 62, a front shield, generally designated 64, and a rear shield, generally designated 66.
- the shields are mounted about the housing by means of a pair of latching recesses 68 in the front shield and a pair of latching tabs 70 on the rear shield.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
A shielded electrical connector (10, 10A) includes
a dielectric housing (12) having a front mating end (24)
for interfacing with a complementary mating connector. A
plurality of terminals (18) are mounted on the housing and
include contact portions (18a) for engaging appropriate
terminals of the mating connector. First and second
shields (14,16,16A) of sheet metal material substantially
surround the housing. The first shield (14) includes at
least one clamping arm (36) projecting therefrom. The
second shield (16,16A) includes a hole (40) for receiving
the clamping arm (36) of the first shield. The clamping
arm (36) is inserted through the hole (40) and is bent into
engagement with the second shield (16,16A) to hold the
shields together about the housing (12).
Description
This invention generally relates to the art of
electrical connectors and, particularly, to connectors
which are shielded against ingress and egress of
electromagnetic and radio frequency interferences.
Electrical circuitry often is provided with
protection from electromagnetic interference (EMI) and
radio frequency interference (RFI) emanating from or
entering the system. Although EMI and RFI now are often
used interchangeably, EMI has been used to connote energy
occurring anywhere in the electromagnetic spectrum and RFI
has been limited at times to interference in the radio
communication band. EMI energy can be generated outside as
well as inside the system. External EMI energy can
interfere with the operation of electronic equipment within
the system, while internal EMI energy can create "cross
talk" and "noise" which can cause erroneous data
transmission.
Electrical connectors are particularly prone to
disruptions from EMI energy because of the numerous contact
areas and openings for electrical terminals and cables. A
typical electrical connector includes a dielectric housing
mounting a plurality of conductive terminals. The housing
may have a forward mating section. In order to protect the
connector from disruptions caused by EMI energy, shields
are provided about the dielectric housing and,
particularly, the mating section thereof. Such shields
often are fabricated of stamped and formed conductive sheet
metal material. The sheet material is stamped and then
formed or folded into an enclosure for the connector
housing. One of the problems with such shields is that
they often are made of multiple components which cause EMI
"leakage" and the components are not held together by
sufficiently strong engaging means. The present invention
is directed to solving these problems in a multi-component
shield which is simple and inexpensive to manufacture and
assemble.
An object, therefore, of the invention is to
provide a new and improved shielded electrical connector of
the character described.
In the exemplary embodiment of the invention, the
shielded connector includes a dielectric housing having a
front mating end for interfacing with a complementary
mating connector. A plurality of terminals are mounted on
the housing and include contact portions for engaging
appropriate terminals of the mating connector. First and
second shields of sheet metal material substantially
surround the housing. The first shield includes a clamping
arm projecting therefrom. The second shield includes a
hole for receiving the clamping arm of the first shield.
The clamping arm of the first shield is inserted through
the hole in the second shield and is bent into engagement
with the second shield to hold the shields together about
the housing.
As disclosed herein, the housing includes a rear
end, a top wall and opposite side walls. The first shield
is a main shield mounted on the housing about at least the
top wall and opposite side walls thereof. A pair of the
clamping arms project rearwardly from opposite sides of the
main shield. The second shield is a rear shield about the
rear end of the housing and includes a pair of the holes
for receiving the clamping arms of the first shield.
Other features of the invention include the rear
shield having recessed areas into which the clamping arms
are bent. The rear shield is formed by a rear wall and
side flanges projecting forwardly from the rear wall
overlapping the opposite sides of the main shield. The
holes in the rear shield are located at the junctures of
the rear wall and the side flanges thereof.
Other objects, features and advantages of the
invention will be apparent from the following detailed
description taken in connection with the accompanying drawings.
The features of this invention which are believed
to be novel are set forth with particularity in the appended
claims. The invention, together with its objects and
the advantages thereof, may be best understood by reference
to the following description taken in conjunction with the
accompanying drawings, in which like reference numerals
identify like elements in the figures and in which:
Referring to the drawings in greater detail, and
first to Figures 1-3, a first embodiment of a shielded
electrical connector according to the invention is
generally designated 10. The connector includes a
dielectric housing, generally designated 12 (Fig. 2),
substantially surrounded by a shield means which includes
a first or main shield, generally designated 14, and a
second or rear shield, generally designated 16. A
plurality of terminals, generally designated 18 (Fig. 2),
are mounted on housing 12 and include contact portions 18a
(Fig. 3) for engaging appropriate terminals of a
complementary mating connector.
More particularly, housing 12 is a one-piece
structure unitarily molded of dielectric material such as
plastic or the like. As best seen in Figure 2, the housing
includes a top wall 20 and opposite side walls 22. The
housing defines a front mating end 24 of the connector as
seen in Figure 3, and the housing has a rear end 26 as seen
in Figure 2. Finally, the housing includes a pair of
generally parallel plug boards or terminal platforms 28
(Fig. 3).
First or main shield 14 is stamped and formed of
sheet metal material and includes a top plate 30 and side
plates 32 positioned over top wall 20 and side walls 22,
respectively, of housing 12. Side flanges 30a of the top
plate overlap the top edges of side plates 32. A pair of
tabs 30b at the rear of the top plate are bent into
engagement within recesses at the rear edge of top wall 20
of the housing. A pair of contact tabs 30c of top plate 30
and 32c of side plates 32 are bent inwardly near the front
mating end of the connector for engaging an appropriate
shield of the complementary mating connector. Each side
plate 32 also has a pair of mounting legs 32d for insertion
into appropriate mounting holes in the printed circuit
board. The mounting legs also can serve as grounding legs
for engaging appropriate ground circuits on the board
and/or in the mounting holes in the board.
Referring specifically to Figure 3, main shield
14 also has a front plate 34 formed with a pair of openings
or receptacles 34a for receiving plug portions of the
complementary mating connector. A pair of grounding arms
32e project forwardly from the front edges of side plates
32 and are bent in front of front plate 34 in registry with
a pair of cutouts 34b in the front plate. Arms 32e form
grounding fingers at the front of connector 10 for engaging
the shield of the complementary mating connector or for
engaging a housing within which the connector is mounted,
as will be seen hereinafter. The arms or grounding fingers
can be displaced into cutouts 34b in front plate 34.
As best seen in Figure 2, a pair of clamping arms
36 project rearwardly of front shield 14. Specifically,
the clamping arms project rearwardly from the rear edges of
side plates 32 of the main shield.
More particularly, after front shield 14 is
assembled about housing 12 as described above, rear shield
16 is assembled in the direction of arrow "A" (Fig. 2).
During assembly, clamping arms 36 of front shield 14 are
inserted through holes 40 in rear shield 16. Once the rear
shield is positioned flush with rear end 26 of housing 12,
clamping arms 36 are bent inwardly as shown in Figure 1
into recessed areas 42 of rear plate 38 of the rear shield.
The clamping arms therefore are flush with the rear plate
of the rear shield.
Figure 4 simply shows one application of shielded
connector 10 mounted within a housing 44 which may be a
computer housing. A mating connector-receiving hole 46 is
divided by a transverse strip 48 which is engaged by
grounding fingers 32e (Fig. 3) of front shield 14 of the
connector. The split hole 46 is aligned with receptacles
34a (Fig. 3) in front shield 14 about housing 12 of
connector 10.
Figures 5-7 show a second embodiment of a
shielded electrical connector, generally designated 10A,
incorporating the concepts of the invention. Connector 10A
is very similar to connector 10 except for the
configuration of a rear shield 16A of connector 10A.
Therefore, like numerals have been applied in Figures 5-7
corresponding to like components described above in
relation to connector 10 in Figures 1-3. In fact, housing
12 and the front or main shield 14 are identical and the
structure of the housing and the main shield will not be
repeated in relation to connector 10A of Figures 5-7.
More particularly, in the second embodiment of
connector 10A, rear shield 16A includes a pair of side
plates or walls 50 which replace flanges 39 of rear shield
16 in first connector 10. Side plates 50 extend all the
way forwardly to the front of the connector and include
tabs 52 which are bent inwardly into receptacles 34a in
front plate 34 of main shield 14. In addition, a pair of
outwardly flared grounding fingers 54 also project
forwardly of side plates 50 of rear shield 16A.
Otherwise, main shield 14 of second connector 10A
includes clamping arms 36 which are inserted into holes 40
in rear shield 16A and are bent into recessed areas 42 of
the rear shield.
Figure 8 shows second connector 10A mounted
within a housing 56 having a single hole 58 instead of the
split hole 46 (Fig. 4) for first connector 10. With the
single hole 58, grounding fingers 54 of rear shield 16A of
the second connector 10A engage the inside of the housing
at the outsides of hole 58.
Figure 9 shows a shielded electrical connector,
generally designated 60, according to the prior art. The
connector includes a dielectric housing, generally
designated 62, a front shield, generally designated 64, and
a rear shield, generally designated 66. The shields are
mounted about the housing by means of a pair of latching
recesses 68 in the front shield and a pair of latching tabs
70 on the rear shield.
It will be understood that the invention may be
embodied in other specific forms without departing from the
spirit or central characteristics thereof. The present
examples and embodiments, therefore, are to be considered
in all respects as illustrative and not restrictive, and
the invention is not to be limited to the details given
herein.
Claims (12)
- A shielded electrical connector (10,10A), comprising:a dielectric housing (12) having a front mating end (24) for interfacing with a complementary mating connector, a rear end (26), a top wall (20) and opposite side walls (22);a plurality of terminals (18) mounted on the housing and including contact portions (18a) for engaging appropriate terminals of the mating connector;a main shield (14) mounted on the housing (12) about at least the top wall (20) and opposite side walls (22) thereof, and including a pair of clamping arms (36) projecting rearwardly from opposite sides (32) of the main shield; anda rear shield (16,16A) about the rear end (26) of the housing (12) and including a pair of holes (40) for receiving the clamping arms (36) of the main shield (14),whereby the clamping arms (36) of the main shield (14) can be inserted through the holes (40) in the rear shield (16,16A) and clamped against the rear shield to hold the shields together about the housing.
- The shielded electrical connector of claim 1 wherein at least the main shield (14) is fabricated of sheet metal material and said clamping arms (36) are bent into engagement with the rear shield (16,16A).
- The shielded electrical connector of claim 2 wherein the rear shield (16,16A) is fabricated of sheet metal material and includes recessed areas (42) into which the clamping arms (36) are bent.
- The shielded electrical connector of claim 1 wherein said rear shield (16,16A) includes a rear wall (38) and side flanges (39,50) projecting forwardly from the rear wall overlapping the opposite sides (32) of the main shield (14).
- The shielded electrical connector of claim 4 wherein said holes (40) are located at the junctures of the rear wall (38) and the side flanges (39,50) of the rear shield (16,16A).
- The shielded electrical connector of claim 5 wherein at least the main shield (14) is fabricated of sheet metal material and said clamping arms (36) are bent into engagement with the rear wall (38) of the rear shield (16,16A).
- The shielded electrical connector of claim 6 wherein the rear shield (16,16A) is fabricated of sheet metal material and includes recessed areas (40) in the rear wall (38) into which the clamping arms (36) are bent.
- The shielded electrical connector of claim 1 wherein said rear shield (16A) includes a rear wall (38) and side walls (50) projecting forwardly from the rear wall overlapping the opposite sides (32) of the main shield (16) and including grounding fingers (54) at the front mating end (24) of the connector housing.
- A shielded electrical connector (10,10A), comprising:a dielectric housing (12) having a front mating end (24) for interfacing with a complementary mating connector;a plurality of terminals (18) mounted on the housing and including contact portions (18a) for engaging appropriate terminals of the mating connector;first and second shields (14,16,16A) of sheet metal material substantially surrounding the housing,said first shield (14) including a clamping arm (36) projecting therefrom, andsaid second shield (16,16A) including a hole (40) for receiving the clamping arm (36) of the first shield (14),whereby the clamping arm (36) of the first shield (14) can be inserted through the hole (40) in the second shield (16,16A) and bent into engagement with the second shield to hold the shields together about the housing.
- The shielded electrical connector of claim 9 wherein said second shield (16,16A) includes a recessed area (42) into which the clamping arm (36) is bent.
- The shielded electrical connector of claim 9 wherein said second shield (16,16A) includes a flange (39,50) projecting from a wall (38) of the second shield in overlapping relationship at an edge of the first shield (14), said clamping arm (36) projects from said edge of the first shield, and said hole (40) is located at a juncture of the wall (38) and the flange (39,50) of the second shield (16,16A).
- The shielded electrical connector of claim 9, including a plurality of said clamping arms (36) of the first shield (14) and a corresponding plurality of holes (40) of the second shield (16,16A) at least at opposite sides of the shields.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99107017A EP1045484A1 (en) | 1999-04-09 | 1999-04-09 | Shielded electrical connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99107017A EP1045484A1 (en) | 1999-04-09 | 1999-04-09 | Shielded electrical connector |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1045484A1 true EP1045484A1 (en) | 2000-10-18 |
Family
ID=8237926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99107017A Withdrawn EP1045484A1 (en) | 1999-04-09 | 1999-04-09 | Shielded electrical connector |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1045484A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006012337B3 (en) * | 2006-03-17 | 2007-11-29 | Amphenol-Tuchel Electronics Gmbh | Electrical connector |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4637669A (en) * | 1985-06-07 | 1987-01-20 | Hosiden Electronics Co., Ltd. | Connector socket |
EP0430105A1 (en) * | 1989-11-29 | 1991-06-05 | Hosiden Corporation | Multipolar connector socket |
US5496195A (en) * | 1995-03-13 | 1996-03-05 | The Whitaker Corporation | High performance shielded connector |
US5637015A (en) * | 1995-08-31 | 1997-06-10 | Hon Hai Precision Ind. Co., Ltd. | Shielded electrical connector |
GB2315614A (en) * | 1996-07-24 | 1998-02-04 | Whitaker Corp | Shielded electrical connector assembly |
US5755595A (en) * | 1996-06-27 | 1998-05-26 | Whitaker Corporation | Shielded electrical connector |
-
1999
- 1999-04-09 EP EP99107017A patent/EP1045484A1/en not_active Withdrawn
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4637669A (en) * | 1985-06-07 | 1987-01-20 | Hosiden Electronics Co., Ltd. | Connector socket |
EP0430105A1 (en) * | 1989-11-29 | 1991-06-05 | Hosiden Corporation | Multipolar connector socket |
US5496195A (en) * | 1995-03-13 | 1996-03-05 | The Whitaker Corporation | High performance shielded connector |
US5637015A (en) * | 1995-08-31 | 1997-06-10 | Hon Hai Precision Ind. Co., Ltd. | Shielded electrical connector |
US5755595A (en) * | 1996-06-27 | 1998-05-26 | Whitaker Corporation | Shielded electrical connector |
GB2315614A (en) * | 1996-07-24 | 1998-02-04 | Whitaker Corp | Shielded electrical connector assembly |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006012337B3 (en) * | 2006-03-17 | 2007-11-29 | Amphenol-Tuchel Electronics Gmbh | Electrical connector |
US7892026B2 (en) | 2006-03-17 | 2011-02-22 | Amphenol-Tuchel Electronics Gmbh | Electrical plug-type connector |
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