EP0382148B1 - Noise filter connector - Google Patents
Noise filter connector Download PDFInfo
- Publication number
- EP0382148B1 EP0382148B1 EP90102247A EP90102247A EP0382148B1 EP 0382148 B1 EP0382148 B1 EP 0382148B1 EP 90102247 A EP90102247 A EP 90102247A EP 90102247 A EP90102247 A EP 90102247A EP 0382148 B1 EP0382148 B1 EP 0382148B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- housing
- capacitors
- shield case
- holes
- contacts
- 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.)
- Expired - Lifetime
Links
- 239000003990 capacitor Substances 0.000 claims description 49
- 239000002184 metal Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 10
- 230000000295 complement effect Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- 239000003522 acrylic cement Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Images
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
- H01R13/66—Structural association with built-in electrical component
-
- 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
- H01R13/719—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters
- H01R13/7197—Structural association with built-in electrical component specially adapted for high frequency, e.g. with filters with filters integral with or fitted onto contacts, e.g. tubular filters
-
- 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
- This invention relates to a noise filter connector or an electrical connector including noise filters.
- the filter connector 1 comprises an insulation housing 2, an electrically-conductive shield case 3 covering the insulation housing 2, cylindrical capacitors 4 extending through the shield case 3 and soldered thereto, and electrically-conductive post or tab contacts 5 extending through the housing 2 and the capacitors 4 and soldered thereto. One end of each contact 5 is bent.
- the housing 2, the shield case 3 and the capacitors 4 are made of plastic, electrically-conductive metal and ceramic dielectric material, respectively. Also, the capacitors 4 include metal film electrodes.
- the filter connector 1 is mounted on a printed circuit board 6 in such a manner that the contacts are inserted into through holes formed in circuit patterns on the circuit board 6.
- the filter connector 1 is mated with a complementary connector.
- the contacts 5 of the conventional filter connector 1 are connected to the capacitors 4 in the metal shield case 3 and in engagement with the plastic housing 2. It is known that the materials of the housing 2 and the shield case 3 differ in thermal expansion coefficient. Additionally, one side surface of the housing 2 to retain contacts 5 is continuous. If the filter connector 1 having such housing 2 and shield case 3 is used under a certain environment encountering wide temperature changes, such difference in thermal expansion coefficient will cause displacement between both fixed points and, in turn, stress which will bend the contacts 5. A part of the stress affects the capacitors 4, thereby causing cracks in them which reduces capacitance or damaging the capacitors 4.
- the housing 2 when the housing 2 is mated with or unmated from a matable complementary connector to insert or extract contact sections of the contacts 5 with respect to contact sections of the complementary connector, bending force resulting from a rocking movement is caused at the contact sections and transmitted to the capacitors, thereby causing the aforementioned damage to the capacitors.
- One conventional means to avoid such problems is to reduce the number of contacts in a filter connector which decreases the entire physical dimension of such connector, thereby limiting the total magnitude of stress due to different coefficients of thermal expansion within a tolerable range.
- This requires a plurality of housings each having a relatively small number of contacts if one needs a filter connecter having a large number of contacts.
- Such housings are accommodated in a common shield case.
- such a filter connector suffers from reduced contact installation, density, limits freedom of contact arrangement, and makes connector assembly more complicated and expensive.
- the connector according to the present invention is directed to an electrical connector including noise filters comprising a dielectric housing, a metal shield case covering the outside of the housing, a plurality of capacitors mounted in holes in a wall of the shield case, and contacts extending through the center portions of the capacitors secured in the wall of the shield case and extending through holes of the housing.
- the filter connector according to the present invention is characterized in that contact sections of the contacts extend loosely through the holes in the wall of the housing without engaging the walls of the holes.
- the walls of the shield case and the housing are in engagement with each other or adjacent to each other. Portions of the capacitors extending inwardly from the inner wall surface of the shield case are freely received in larger diameter holes in the housing formed continuously and in alignment with the holes in the housing.
- the contacts fixedly engaging the capacitors mounted on the shield case extend through the wall of the housing by loosely extending through the holes therein.
- the shield case and the housing of the connector are preferably adjacent to each other for compact connector design.
- the above construction of loosely inserting the contacts in the holes in the housing as well as portions of the capacitors extending inwardly from the shield case in the larger diameter holes in continuous and aligned relationship with the holes in the wall of the housing is effective to avoid any adverse effect between the contacts and the housing and also stress or damage to the capacitors.
- the connector according to the present invention has a reinforcement member mounted on the wall of the shield case for retaining both end portions of the capacitors between the wall of the shield case and the reinforcement member through which the capacitors extend.
- the capacitors are secured in the wall of the shield case near one end of each capacitor and also in the reinforcement member mounted on the wall of the shield case near the other end of each capacitor.
- the capacitors are well protected from rocking movement at the contact sections when the connector housing is mated with or unmated from the matable complementary connector housing.
- FIG. 1 is a perspective view of the entire connector of one embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the connector in FIG. 1 perpendicular to the length of the connector.
- FIG. 3 is a part perspective view illustrating the relationship between the through holes in the housing and the contacts.
- FIG. 4 is a perspective view of another embodiment of the connector according to the present invention.
- FIG. 5 is a cross-sectional view of the connector in FIG. 4 in a transverse direction.
- FIG. 6 is a part perspective view of the connector in FIG. 4 seen from the inside thereof.
- FIG. 7 is a part cross-sectional view illustrating the relationship between the shield case, the reinforcement member, the capacitors and the contacts.
- FIG. 8 is a cross-sectional view, similar to FIG. 2, of a conventional connector.
- a filter connector 11 includes an insulation housing 12, an electrically-conductive shield case 13, cylindrical capacitors 14, electrically-conductive post or tab contacts 15, and an inductor block 16.
- the housing 12 is made of a suitable plastic material.
- the shield case 13 is made of electrically-conductive metal.
- the capacitors 14 are made of ceramic dielectric material and metal film electrodes.
- the contacts 15 are made of electrically-conductive metal.
- the inductor block 16 is made of ferrite material.
- the housing 12 and the shield case 13 are open at their front ends and are mated with both rear walls 18, 19 engaging each other and secured together by a screw 17 from the shield case 13 into the housing 12.
- the shield case 13 has extended side wall sections 20.
- the rear wall 18 of the housing 12 has holes 21 in two vertical rows at a constant pitch in the length direction. Each hole 21 comprises an outer larger diameter section 22 and an inner smaller diameter section 23 formed continuously and concentrically in a stepped configuration.
- Holes 24 are formed in the rear wall 19 of the shield case 13 in correspondence to the larger diameter sections 22 in the housing 12.
- the capacitors 14 are inserted in the holes 24 and mounted thereon by soldering in the condition that flanges 25 of the capacitors 14 contact the outer surface of the rear wall 19 of the shield case 13.
- portions of the capacitors 14 extending inwardly from the rear wall 19 are positioned in the larger diameter sections 22 in the housing 12 in such a manner that the outer surfaces of the capacitors 14 do not engage the inner circumferential wall of the larger diameter sections 22 in the housing 12.
- the inner ends of the capacitors 14 may lightly engage the inner ends of the respective larger diameter sections 22 but it is preferable to be slightly isolated therefrom.
- Outer sections 22 and inner sections 23 can be round, square or rectangular depending on the configurations of the capacitors 14 and contacts 15.
- the contacts 15 extend into the housing 12 via contact sections 15a and extend outside of the shield case 13 via post sections 15b through the center openings of the respective capacitors 14 and soldered thereto.
- the contacts 15 pass through the smaller diameter sections 23 in such a manner that the outer surfaces of the contacts 15 do not engage the inner surfaces of the smaller diameter sections 23 (see FIG. 3).
- the contacts 15 are bent downwardly at desired locations outside of the shield case 13 so that they extend through holes 26 in the inductor block 16 positioned between both extended side wall sections 20.
- the post sections 15b of the contacts 15 are secured in the holes 26 in the inductor block 16 using acrylic adhesive material 27 or the like. Grooves 30 are located in the rear wall 18 of the housing 12.
- the filter connector 11 of the above construction is mounted on the printed circuit board 32. Electrical connections are made by inserting the post sections 15b of the contacts 15 into holes 31 of the circuit board 32 at appropriate circuit patterns. A housing of a matable complementary electrical connector (not shown in the drawings) is mated with the filter connector 11. In this way, the contact sections 15a of the contacts 15 are electrically connected to corresponding contact sections of receptacle type contacts secured in the complementary connector.
- the rear walls 18, 19 of the housing 12 and the shield case 13 of the present connector are preferably engaged as shown in FIG. 2 for miniaturization and increasing mechanical strength of the connector 11; however, they may be slightly separated.
- the inductor block 16 is made of ferrite and in conjunction with the shield case 13 and the capacitors 14, they act as filter devices.
- the inductor block 16 also acts as an alignment and securing member for the post sections 15b of the contacts 15. It is, therefore, preferable to use the inductor block 16. It is appreciated, however, that the inductor block 16 is not essential to the present device and may be a single or a plurality of separate members.
- FIGS. 4 and 5 Illustrated in FIGS. 4 and 5 is another embodiment of the present connector.
- the connector 11 is essentially the same as the first embodiment in basic construction except for the provision of a reinforcement member 32. Therefore, similar reference numerals are used to represent like members or positions.
- the reinforcement member 32 is made of a metal plate and has holes 33 of a given pitch at the central area thereof and securing members 34a on inwardly-bent spacers 34.
- the reinforcement member 32 is positioned between a back wall 19 of the shield case 13 and a concave section 35 in a back wall 18 of the housing 12.
- the securing members 34a extend through slots in the back wall 19 of the shield case 13 and soldered to be firmly mounted on the back wall 19.
- Front end sections of the capacitors 14 extend through the holes 33 of the reinforcement member 32 and are retained in the holes at the circumferential surfaces of the capacitors 14.
- the contacts 15 are provided with neck sections 15c between the front end surface of the capacitors 14 and the contact tab sections 15a.
- the neck sections 15c act to cancel any rocking to the tab sections 15a when inserted in or extracted from receptacle contact sections of a complementary connector.
- the neck sections 15c as well as retention of the front ends of the capacitors 14 in the holes 33 helps to minimize transmission of rocking which is a major cause of breaking the capacitors 14.
- the present connector is constructed and operates as discussed above. When it is used under wide temperature changing conditions to cause bending of the contacts due to different coefficients of thermal expansion between the housing and the shield case, the contacts cause no adverse effect such as stress to the housing, and, in turn, to the capacitors. This avoids possible damage to the capacitors including reduced capacitance due to cracks, etc.
- rocking that may be caused at the contact sections during mating and unmating of the housing with the complementary connector housing is effectively eliminated from the capacitors because of firm retention of the capacitors by the reinforcement member, thereby avoiding the aforementioned trouble due to such rocking.
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Description
- This invention relates to a noise filter connector or an electrical connector including noise filters.
- Conventional filter connectors of this type, for example, filter connectors for automobile applications to reject high frequency noise are constructed as shown in FIG. 8. The filter connector 1 comprises an
insulation housing 2, an electrically-conductive shield case 3 covering theinsulation housing 2,cylindrical capacitors 4 extending through the shield case 3 and soldered thereto, and electrically-conductive post ortab contacts 5 extending through thehousing 2 and thecapacitors 4 and soldered thereto. One end of eachcontact 5 is bent. Thehousing 2, the shield case 3 and thecapacitors 4 are made of plastic, electrically-conductive metal and ceramic dielectric material, respectively. Also, thecapacitors 4 include metal film electrodes. - The filter connector 1 is mounted on a printed circuit board 6 in such a manner that the contacts are inserted into through holes formed in circuit patterns on the circuit board 6. The filter connector 1 is mated with a complementary connector.
- However, as understood from the above description, the
contacts 5 of the conventional filter connector 1 are connected to thecapacitors 4 in the metal shield case 3 and in engagement with theplastic housing 2. It is known that the materials of thehousing 2 and the shield case 3 differ in thermal expansion coefficient. Additionally, one side surface of thehousing 2 to retaincontacts 5 is continuous. If the filter connector 1 havingsuch housing 2 and shield case 3 is used under a certain environment encountering wide temperature changes, such difference in thermal expansion coefficient will cause displacement between both fixed points and, in turn, stress which will bend thecontacts 5. A part of the stress affects thecapacitors 4, thereby causing cracks in them which reduces capacitance or damaging thecapacitors 4. - Also, when the
housing 2 is mated with or unmated from a matable complementary connector to insert or extract contact sections of thecontacts 5 with respect to contact sections of the complementary connector, bending force resulting from a rocking movement is caused at the contact sections and transmitted to the capacitors, thereby causing the aforementioned damage to the capacitors. - One conventional means to avoid such problems is to reduce the number of contacts in a filter connector which decreases the entire physical dimension of such connector, thereby limiting the total magnitude of stress due to different coefficients of thermal expansion within a tolerable range. This requires a plurality of housings each having a relatively small number of contacts if one needs a filter connecter having a large number of contacts. Such housings are accommodated in a common shield case. However, such a filter connector suffers from reduced contact installation, density, limits freedom of contact arrangement, and makes connector assembly more complicated and expensive.
- Another means is disclosed in GB-A-2 205 201. In this known connector, the contacts are firmly gripped within the housing by collects and the free ends of the contacts extend through holes in a rigid insulating plate which is not connected rigidly to the metal shield case.
- It is, therefore, an object of this invention to overcome the aforementioned problems and to provide a filter connector free from stress due to different coefficients of thermal expansion even if it is used under wider temperature changing conditions.
- It is still another object of the present invention to provide a filter connector capable of avoiding such troubles in capacitors due to rocking.
- In order to achieve the above object, the connector according to the present invention is directed to an electrical connector including noise filters comprising a dielectric housing, a metal shield case covering the outside of the housing, a plurality of capacitors mounted in holes in a wall of the shield case, and contacts extending through the center portions of the capacitors secured in the wall of the shield case and extending through holes of the housing.
- The filter connector according to the present invention is characterized in that contact sections of the contacts extend loosely through the holes in the wall of the housing without engaging the walls of the holes.
- In the preferred embodiment, the walls of the shield case and the housing are in engagement with each other or adjacent to each other. Portions of the capacitors extending inwardly from the inner wall surface of the shield case are freely received in larger diameter holes in the housing formed continuously and in alignment with the holes in the housing.
- The contacts fixedly engaging the capacitors mounted on the shield case extend through the wall of the housing by loosely extending through the holes therein. When the connector is used under wide temperature changing conditions, any bending force in the contacts caused by different coefficients of thermal expansion between the housing and the shield case does not cause any adverse effect to the housing and, in turn, stress or damage to the capacitors.
- Also, the shield case and the housing of the connector are preferably adjacent to each other for compact connector design. In this case, the above construction of loosely inserting the contacts in the holes in the housing as well as portions of the capacitors extending inwardly from the shield case in the larger diameter holes in continuous and aligned relationship with the holes in the wall of the housing is effective to avoid any adverse effect between the contacts and the housing and also stress or damage to the capacitors.
- To achieve the other object, the connector according to the present invention has a reinforcement member mounted on the wall of the shield case for retaining both end portions of the capacitors between the wall of the shield case and the reinforcement member through which the capacitors extend.
- Also, the capacitors are secured in the wall of the shield case near one end of each capacitor and also in the reinforcement member mounted on the wall of the shield case near the other end of each capacitor. The capacitors are well protected from rocking movement at the contact sections when the connector housing is mated with or unmated from the matable complementary connector housing.
- The filter connector according to the present invention will be described in detail hereunder by way of example to preferred embodiments with reference to the accompanying drawings.
- FIG. 1 is a perspective view of the entire connector of one embodiment of the present invention.
- FIG. 2 is a cross-sectional view of the connector in FIG. 1 perpendicular to the length of the connector.
- FIG. 3 is a part perspective view illustrating the relationship between the through holes in the housing and the contacts.
- FIG. 4 is a perspective view of another embodiment of the connector according to the present invention.
- FIG. 5 is a cross-sectional view of the connector in FIG. 4 in a transverse direction.
- FIG. 6 is a part perspective view of the connector in FIG. 4 seen from the inside thereof.
- FIG. 7 is a part cross-sectional view illustrating the relationship between the shield case, the reinforcement member, the capacitors and the contacts.
- FIG. 8 is a cross-sectional view, similar to FIG. 2, of a conventional connector.
- In FIGS. 1 and 2, a
filter connector 11 includes aninsulation housing 12, an electrically-conductive shield case 13,cylindrical capacitors 14, electrically-conductive post ortab contacts 15, and aninductor block 16. Thehousing 12 is made of a suitable plastic material. Theshield case 13 is made of electrically-conductive metal. Thecapacitors 14 are made of ceramic dielectric material and metal film electrodes. Thecontacts 15 are made of electrically-conductive metal. Theinductor block 16 is made of ferrite material. - The
housing 12 and theshield case 13 are open at their front ends and are mated with bothrear walls screw 17 from theshield case 13 into thehousing 12. Theshield case 13 has extendedside wall sections 20. Therear wall 18 of thehousing 12 hasholes 21 in two vertical rows at a constant pitch in the length direction. Eachhole 21 comprises an outerlarger diameter section 22 and an innersmaller diameter section 23 formed continuously and concentrically in a stepped configuration. -
Holes 24 are formed in therear wall 19 of theshield case 13 in correspondence to thelarger diameter sections 22 in thehousing 12. Thecapacitors 14 are inserted in theholes 24 and mounted thereon by soldering in the condition that flanges 25 of thecapacitors 14 contact the outer surface of therear wall 19 of theshield case 13. Also, portions of thecapacitors 14 extending inwardly from therear wall 19 are positioned in thelarger diameter sections 22 in thehousing 12 in such a manner that the outer surfaces of thecapacitors 14 do not engage the inner circumferential wall of thelarger diameter sections 22 in thehousing 12. The inner ends of thecapacitors 14 may lightly engage the inner ends of the respectivelarger diameter sections 22 but it is preferable to be slightly isolated therefrom.Outer sections 22 andinner sections 23 can be round, square or rectangular depending on the configurations of thecapacitors 14 andcontacts 15. - The
contacts 15 extend into thehousing 12 viacontact sections 15a and extend outside of theshield case 13 viapost sections 15b through the center openings of therespective capacitors 14 and soldered thereto. Thecontacts 15 pass through thesmaller diameter sections 23 in such a manner that the outer surfaces of thecontacts 15 do not engage the inner surfaces of the smaller diameter sections 23 (see FIG. 3). Also, thecontacts 15 are bent downwardly at desired locations outside of theshield case 13 so that they extend throughholes 26 in theinductor block 16 positioned between both extendedside wall sections 20. Thepost sections 15b of thecontacts 15 are secured in theholes 26 in theinductor block 16 using acrylicadhesive material 27 or the like.Grooves 30 are located in therear wall 18 of thehousing 12. - The
filter connector 11 of the above construction is mounted on the printedcircuit board 32. Electrical connections are made by inserting thepost sections 15b of thecontacts 15 intoholes 31 of thecircuit board 32 at appropriate circuit patterns. A housing of a matable complementary electrical connector (not shown in the drawings) is mated with thefilter connector 11. In this way, thecontact sections 15a of thecontacts 15 are electrically connected to corresponding contact sections of receptacle type contacts secured in the complementary connector. - It is to be noted that the
rear walls housing 12 and theshield case 13 of the present connector are preferably engaged as shown in FIG. 2 for miniaturization and increasing mechanical strength of theconnector 11; however, they may be slightly separated. In the present connector, theinductor block 16 is made of ferrite and in conjunction with theshield case 13 and thecapacitors 14, they act as filter devices. Theinductor block 16 also acts as an alignment and securing member for thepost sections 15b of thecontacts 15. It is, therefore, preferable to use theinductor block 16. It is appreciated, however, that theinductor block 16 is not essential to the present device and may be a single or a plurality of separate members. - Illustrated in FIGS. 4 and 5 is another embodiment of the present connector. In this embodiment, the
connector 11 is essentially the same as the first embodiment in basic construction except for the provision of areinforcement member 32. Therefore, similar reference numerals are used to represent like members or positions. - The
reinforcement member 32 is made of a metal plate and hasholes 33 of a given pitch at the central area thereof and securingmembers 34a on inwardly-bentspacers 34. Thereinforcement member 32 is positioned between aback wall 19 of theshield case 13 and aconcave section 35 in aback wall 18 of thehousing 12. The securingmembers 34a extend through slots in theback wall 19 of theshield case 13 and soldered to be firmly mounted on theback wall 19. Front end sections of thecapacitors 14 extend through theholes 33 of thereinforcement member 32 and are retained in the holes at the circumferential surfaces of thecapacitors 14. - As shown in FIGS. 6 and 7, the
contacts 15 are provided withneck sections 15c between the front end surface of thecapacitors 14 and thecontact tab sections 15a. Theneck sections 15c act to cancel any rocking to thetab sections 15a when inserted in or extracted from receptacle contact sections of a complementary connector. As a result, theneck sections 15c as well as retention of the front ends of thecapacitors 14 in theholes 33 helps to minimize transmission of rocking which is a major cause of breaking thecapacitors 14. - The present connector is constructed and operates as discussed above. When it is used under wide temperature changing conditions to cause bending of the contacts due to different coefficients of thermal expansion between the housing and the shield case, the contacts cause no adverse effect such as stress to the housing, and, in turn, to the capacitors. This avoids possible damage to the capacitors including reduced capacitance due to cracks, etc.
- Also, rocking that may be caused at the contact sections during mating and unmating of the housing with the complementary connector housing is effectively eliminated from the capacitors because of firm retention of the capacitors by the reinforcement member, thereby avoiding the aforementioned trouble due to such rocking.
- Also, the aforementioned physical relationship between the contacts and the housing and between the capacitors and the housing simplifies the connector assembly.
Claims (5)
- An electrical connector including noise filters comprising a dielectric housing (12), a metal shield case (13) covering the outside of said housing, a plurality of capacitors (14) mounted in holes (24) in a wall (19) of said shield case, and contacts (15) extending through the center portions of said capacitors (14) secured in the wall of said shield case and extending through holes (21) of said housing, characterized in that contact sections (15a) of the contacts (15) extend loosely through the holes (21) of said housing without engaging the walls of the holes (21).
- An electrical connector of claim 1 characterized in that the walls (18, 19) of said shield case (13) and said housing (12) are in engagement with or adjacent to each other, portions of said capacitors (14) extending inwardly from the inner surface of said shield case are loosely positioned in larger sections (22) of said holes (21) in the wall (18) of said housing (12) without engaging the walls thereof.
- An electrical connector of claim 1 or 2, characterized in that said contacts (15) have post sections (15b) extending exteriorly of said shield case (13) and through apertures (26) of an inductor member (16).
- An electrical connector of any of claims 1 to 3, characterized in that a reinforcement member (32) is mounted on said shield case (13) and has holes (33) in alignment with the holes (24) with outer ends of the capacitors (14) disposed in said holes (33).
- An electrical connector of any of claims 1 to 4 characterized in that the contact section (15a) adjacent the outer ends of the capacitors (14) have neck sections (15c).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1317289 | 1989-02-07 | ||
JP13172/89U | 1989-02-07 | ||
JP1989127460U JPH084707Y2 (en) | 1989-02-07 | 1989-10-31 | Electrical connector with noise filter |
JP127460/89U | 1989-10-31 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0382148A2 EP0382148A2 (en) | 1990-08-16 |
EP0382148A3 EP0382148A3 (en) | 1990-08-29 |
EP0382148B1 true EP0382148B1 (en) | 1994-05-04 |
Family
ID=26348926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90102247A Expired - Lifetime EP0382148B1 (en) | 1989-02-07 | 1990-02-05 | Noise filter connector |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0382148B1 (en) |
JP (1) | JPH084707Y2 (en) |
KR (1) | KR900013680A (en) |
BR (1) | BR9000465A (en) |
DE (1) | DE69008558T2 (en) |
ES (1) | ES2052081T3 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5415569A (en) * | 1992-10-19 | 1995-05-16 | Molex Incorporated | Filtered electrical connector assembly |
US5647768A (en) * | 1996-03-11 | 1997-07-15 | General Motors Corporation | Plated plastic filter header |
SE506824C2 (en) * | 1996-06-14 | 1998-02-16 | Ericsson Telefon Ab L M | Device for tight connector and method of manufacturing the device |
US6314182B1 (en) | 1998-08-19 | 2001-11-06 | 3M Innovative Properties Company | External filter box |
SE520443C2 (en) * | 2000-02-14 | 2003-07-08 | Fci Katrineholm Ab | Procedure for mounting the power supply and the power supply |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8420222D0 (en) * | 1984-08-09 | 1984-09-12 | Oxley Dev Co Ltd | Electrical connectors |
JPH047588Y2 (en) * | 1986-01-09 | 1992-02-27 | ||
GB2205201B (en) * | 1987-05-21 | 1991-01-02 | Oxley Dev Co Ltd | Stress free integral filter array for multi-way connectors |
-
1989
- 1989-10-31 JP JP1989127460U patent/JPH084707Y2/en not_active Expired - Lifetime
-
1990
- 1990-01-19 KR KR1019900000604A patent/KR900013680A/en not_active Application Discontinuation
- 1990-02-02 BR BR909000465A patent/BR9000465A/en not_active Application Discontinuation
- 1990-02-05 EP EP90102247A patent/EP0382148B1/en not_active Expired - Lifetime
- 1990-02-05 DE DE69008558T patent/DE69008558T2/en not_active Expired - Fee Related
- 1990-02-05 ES ES90102247T patent/ES2052081T3/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE69008558T2 (en) | 1994-08-18 |
BR9000465A (en) | 1991-01-15 |
EP0382148A3 (en) | 1990-08-29 |
KR900013680A (en) | 1990-09-06 |
JPH037284U (en) | 1991-01-24 |
DE69008558D1 (en) | 1994-06-09 |
EP0382148A2 (en) | 1990-08-16 |
ES2052081T3 (en) | 1994-07-01 |
JPH084707Y2 (en) | 1996-02-07 |
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