EP0863585B1 - Electrical connector for printed circuit boards - Google Patents
Electrical connector for printed circuit boards Download PDFInfo
- Publication number
- EP0863585B1 EP0863585B1 EP98108873A EP98108873A EP0863585B1 EP 0863585 B1 EP0863585 B1 EP 0863585B1 EP 98108873 A EP98108873 A EP 98108873A EP 98108873 A EP98108873 A EP 98108873A EP 0863585 B1 EP0863585 B1 EP 0863585B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contacts
- connector
- cap
- plug
- electrical
- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0063—Hydrometallurgy
- C22B15/0065—Leaching or slurrying
- C22B15/0067—Leaching or slurrying with acids or salts thereof
- C22B15/0071—Leaching or slurrying with acids or salts thereof containing sulfur
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- 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
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/12—Electrolytic production, recovery or refining of metals by electrolysis of solutions of copper
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- 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
- H01R13/6585—Shielding material individually surrounding or interposed between mutually spaced contacts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/50—Fixed connections
- H01R12/51—Fixed connections for rigid printed circuits or like structures
- H01R12/55—Fixed connections for rigid printed circuits or like structures characterised by the terminals
- H01R12/57—Fixed connections for rigid printed circuits or like structures characterised by the terminals surface mounting terminals
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- 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]
Definitions
- the present invention concerns an electrical connector equipped with two connector halves which are respectively mounted on different boards, and which connect these boards to each other.
- PCB's printed circuit boards
- Such electrical connectors as disclosed in U.S. Patent No. 5,224,866 are equipped with a plug connector and a cap connector which are mounted on different boards, and which are connected to each other.
- the PCB's are connected to each other by connecting the plug connector and cap connector.
- the plug connector and cap connector each have a plurality of contacts, and a housing in which these contacts are lined up at a given pitch.
- the contacts lined up in the housing of the plug connector possess spring forces, so that when the plug connector and cap connector are connected, the contacts lined up in the respective housings are caused to contact each other with a given force as a result of these spring forces, thus establishing an electrical connection.
- the object of the present invention is to provide an electrical connector which makes it possible to provide simple and reliable ground interconnection.
- the first contacts are clamped between the wall surfaces of the housing of the plug connector and the second contacts.
- the first contacts are clamped between the wall surfaces and the second contacts, and are strongly pressed against both of these parts.
- the first contacts and second contacts can be caused to wipingly contact each other with a high contact pressure.
- the first contacts are lined up in two rows so that the first and second spring members are mutually symmetrical in the opposing rows.
- Figures 1 - 4 illustrate a plug connector a of an electrical connector.
- Figure 1 is a plan view
- Figure 2 is a side view
- Figure 3 is an end view
- Figure 4 is a schematic plan view of a board on which the plug connector is mounted.
- Figure 5 is a cross-sectional view of the plug connector shown in Figures 1 - 4.
- Figures 6 - 9 illustrate a cap connector of the electrical connector.
- Figure 6 is a plan view
- Figure 7 is a side view
- Figure 8 is an end view
- Figure 9 is a schematic plan view of a board on which the cap connector is mounted.
- Figure 10 is a cross-sectional view of the cap connector shown in Figures 6-9.
- Figure 11 is a cross-sectional view which illustrates the connected state of the plug connector shown in Figures 1-4 and the cap connector shown in Figures 6-9.
- Figures 12-14 illustrate another embodiment of a cap connector of the electrical connector.
- Figure 12 is a plan view
- Figure 13 is a side view
- Figure 14 is an end view.
- Figure 15 is a cross-sectional view of the cap connector shown in Figures 12-14.
- Figure 16 is a side view which illustrates a cap connector in a first embodiment of the electrical connector of the present invention.
- Figure 17 is a cross-sectional view which shows the cap connector in Figure 16 connected with a plug connector, illustrating the electrical contact between the ground contacts of the cap connector and the ground contacts of the plug connector.
- Figure 18 is a cross-sectional view which shows the cap connector in Figure 16 connected with a plug connector, illustrating the electrical contact between the signal contacts of the cap connector and the signal contacts of the plug connector.
- Figure 19 is a side view which illustrates the cap connector in a second embodiment of the electrical connector of the present invention.
- Figures 1 - 5 illustrate the plug connector of the electrical connector.
- Figure 11 shows the plug connector and cap connector connected to each other.
- the electrical connector 10 ( Figure 11) has a plug connector 20 and a cap connector 60 which are connected to each other.
- the plug connector 20 is mounted on a board 12, and the cap connector 60 is mounted on a board 14.
- the boards 12 and 14 are connected to each other face-to-face as shown in Figure 11.
- the plug connector 20 (Figs. 1-5) is equipped with a housing 30 and contacts 40.
- the contacts 40 have projections, for press fitting into contact-receiving cavities of the housing 30 so as to be fastened to the housing 30, and they are aligned in two rows in the direction of the length of the housing 30.
- the housing 30 has posts 32 and 34 which are respectively inserted into post holes 12a, 12b formed in the board 12, and a metal-fastening fitting 36 which is soldered to a fastening pad 12c on the board 12.
- a central wall 38 which extends in the direction of the length of the housing 30 is formed in the central part of the housing 30. This central wall 38 has two wall surfaces 38a and 38b.
- Contacts 40 are comprised of contact sections 41 including S-shaped first spring members 42 which have two bent portions 42a and 42b, second spring members 44 which have contact projections 44a that electrically contact the contact sections 82 of contacts 80 described later, and termination sections 46 which are soldered to conductive pads 12d on the board 12.
- the contact legs 42c of the first spring members 42 substantially contact the wall surfaces 38a and 38b, while the second spring members 44 via contact projections 44a contact the contact sections 82 of the contacts 80.
- the contacts 40 are formed by stamping from single metal plates, which are superior in terms of conductivity and spring characteristics.
- the contacts 40 are installed at a pitch of 0.6 mm, and the height of the contacts 40 from the board 12 is approximately 3.00 mm.
- the cap connector 60 is equipped with a housing 70 and contacts 80.
- the contacts 80 are lined up in two rows along the length of the housing 70.
- the housing 70 is equipped with posts 72 and 74 as shown in Figure 7 which are respectively inserted into post holes 14a and 14b formed in the board 14, and a metal-fastening fitting 76 which is soldered to a fastening pad 14c on the board 14.
- side walls 78 which extend in the direction of length of the housing 70 are formed on both side portions of the housing 70.
- Contacts 80 are comprised of contact sections 82 which electrically contact the contact projections 44a of the second spring members 44 of the contacts 40, and termination sections 84 which are soldered to conductive pads 14d on the board 14.
- the contacts 80 are formed by stamping and bending single metal plates which are superior in terms of conductivity and spring characteristics.
- the contacts 80 are installed at a pitch of 0.6 mm, and the height of the contacts 80 from the board 14 is approximately 3.0 mm.
- the first and second spring members 42 and 44 of the contacts 40 are clamped between the wall surfaces 38a and 38b and the contact sections 82 of the contacts 80. Furthermore, when the contact projections 44a of the second spring members 44 are pressed against the contact sections 82 of the contacts 80, the first and second spring members 42 and 44 apply a force on the contacts 80. Thus, when the plug connector 20 and cap connector 60 are connected, the contacts 40 are clamped between the wall surfaces 38a and 38b and the contacts 80, and are strongly pressed against both the wall surfaces 38a and 38b and contacts 80.
- the contacts 40 and contacts 80 electrically and wipingly contact each other with a high contact pressure. Furthermore, since the contacts 40 are arranged in two rows so that the first and second spring members 42 and 44 of the contacts 40 are mutually symmetrical in the opposing rows, the respective forces between contacts 40 and 80 are balanced between the rows of contacts 40, so that the contacts 40 and contacts 80 contact each other with a high well-balanced contact pressure, thus making it possible to obtain an electrical connector which provides secure electrical connections.
- the electrical connector of the second embodiment has a different cap connector.
- the plug connector has the same shape as the plug connector in the first embodiment. Accordingly, the cap connector will be described here.
- the cap connector 90 is equipped with a housing 100 and contacts 120.
- the contacts 120 are lined up in two rows along the length of the housing 100. Compared to the contacts 80 of the cap connector 60 shown in Figures 6-9, the contacts 120 are longer, with a length of approximately 9.00 mm.
- the housing 100 is equipped with posts 102 and 104 which are respectively inserted into post holes 14a and 14b formed in the board 14, and a metal-fastening fitting 106 which is soldered to a fastening pad 14c on the board 14.
- side walls 108 extend in the direction of the length of the housing 100 and are formed with openings 108a. These openings are a characteristic feature of the cap connector 90. The reason for forming the openings 108a will be described below.
- the housing 100 is ordinarily made of a synthetic resin, and is formed by injection molding using a mold which corresponds to the shape of the housing 100.
- the contacts 120 are inserted into the housing 100 after the housing 100 has been molded.
- the spaces into which the contacts 120 are inserted are formed in the injection-molded walls of the housing 100 using long, slender pins known as core pins. After the housing 100 has been injection-molded, these core pins are removed from the housing 100. In cases where the contacts 120 are long, the core pins are also naturally long, so that there is a danger that bending will occur when the core pins are pulled out of the housing 100.
- the openings 108a are formed in the side walls 108 of the housing 100 in order to allow shortening of the core pins even in cases where the contacts 120 are long.
- a metal mold in the areas corresponding to the openings 108a during injection molding.
- two short core pins which are respectively inserted from above and below are used in each area corresponding to a space into which one of the contacts 120 is to be inserted. By thus using two short core pins to form spaces for the insertion of long contacts, it is possible to prevent bending of the core pins when they are pulled out of the housing 100 following injection molding.
- the electrical connector 128 of this embodiment is characterized by shield plates 170 which are attached to the side surfaces of walls 158 of the housing 152 of the cap connector 150, and by the shape of the ground contacts among the contacts of the plug connector.
- the electrical connector 128 of this embodiment is equipped with a plug connector 130 and a cap connector 150 which are substantially similar in shape to the plug connector 20 and cap connector 60 of the electrical connector 10 of the first embodiment illustrated in Figures 1 through 11.
- Ground contacts 134 and signal contacts 136 are arranged in the housing 132 of the plug connector 130.
- ground contacts 154 and signal contacts 156 are also arranged in the housing 152 of the cap connector 150.
- shield plates 170 are respectively attached to both side surfaces of walls 158 of the housing 152 of the cap connector 150. This attachment is accomplished by causing the shield plates 170 to slide relative to the housing 152 so that respective projections 158a formed on the side surfaces of walls 158 enter the narrow portions 172a of slots 172 formed in the shield plates 170.
- Bridge contact sections S1 (supported at both ends) on which dimples 174 are formed, and tongue members S2 which are used to make spring contact with the ground contacts 154 of the cap connector 150, are formed on the shield plates 170.
- the bridge contact sections S1 of the shield plates 170 contact the extensions 134a of the ground contacts 134, and the tongue members S2 springably contact the termination sections 154a of the ground contacts 154.
- the tongue members S2 and the termination sections 154a of the ground contacts 154 may be soldered.
- the termination sections 154a of the ground contacts 154 are soldered to the conductive pads 14d on board 14. Accordingly, the heat generated when the cap connector 150 is mounted on the board 14 may be utilized in order to solder the tongue members S2 and the termination sections 154a of the ground contacts 154.
- the signal contacts 136 and 156 do not contact the shield plates 170.
- the housing 152 of the cap connector 150 has projecting portions 159, and grooves 160 which accommodate the projecting portions 138 of housing 132 at which the contact sections S1 and extensions 134a are located.
- the assembly process is as follows: The shield plates 170 are first attached to the housing 152 of the cap connector 150, after which the contacts 154 and 156 are positioned into the housing 152. Soldering is performed only when the cap connector 150 is attached to the board. Dimples 174 are formed in the shield plate 170, and these dimples 174 electrically contact the extensions 134a of the ground contacts 134. However, it would also be possible to omit the dimples 174. In the electrical connector of this first embodiment of the invention, the respective ground contacts 134 and 154 can easily be connected by attaching a single shield plate 170 to the housing 152 of the cap connector 150.
- Figure 19 illustrates a second embodiment of the electrical connector of the present invention.
- the difference between this electrical connector and the electrical connector of the first embodiment lies in the shape of the shield plates.
- no projections are formed in the tongue members in order to prevent sagging of the slots 182.
- An effect similar to that obtained using the shield plates 170 shown in Figure 16 can also be obtained using these shield plates 180.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Description
- The present invention concerns an electrical connector equipped with two connector halves which are respectively mounted on different boards, and which connect these boards to each other.
- In the past, electrical connectors have been widely used in order to connect printed circuit boards, hereafter referred to as "PCB's", to each other. Such electrical connectors as disclosed in U.S. Patent No. 5,224,866 are equipped with a plug connector and a cap connector which are mounted on different boards, and which are connected to each other. The PCB's are connected to each other by connecting the plug connector and cap connector. The plug connector and cap connector each have a plurality of contacts, and a housing in which these contacts are lined up at a given pitch. Ordinarily, the contacts lined up in the housing of the plug connector possess spring forces, so that when the plug connector and cap connector are connected, the contacts lined up in the respective housings are caused to contact each other with a given force as a result of these spring forces, thus establishing an electrical connection.
- In many applications, there exists a need for ground interconnection between the boards. In another type of a connector assembly, this interconnection is established through ground contacts on a first connector and shielding plates in moulded in a second connector; see EP-A-0 627 788.
- As a result of the miniaturization of electrical connectors in recent years, there has been a tendency for the contacts to become smaller, and for the pitch at which the contacts are lined up to become narrower. Furthermore, there has also been a tendency for the contacts to become shorter, in order to reduce the distance between the connected boards when the boards are connected face-to-face by such an electrical connector. In cases where the contacts are thus made smaller and shorter, the spring forces of the contacts drops so that there is a drop in the contact pressure between the contacts, thus leading to the danger of an inadequate electrical connection.
- The object of the present invention is to provide an electrical connector which makes it possible to provide simple and reliable ground interconnection.
- The object is achieved with an electrical connector with the features of claim 1.
- It is advantageous that, when the plug and cap connectors are connected to each other in the electrical connector, the first contacts are clamped between the wall surfaces of the housing of the plug connector and the second contacts. In other words, when the plug and cap connectors are connected to each other, the first contacts are clamped between the wall surfaces and the second contacts, and are strongly pressed against both of these parts. As a result, even if the contacts are made smaller and shorter in order to reduce the pitch of the contacts, the first contacts and second contacts can be caused to wipingly contact each other with a high contact pressure. Furthermore, the first contacts are lined up in two rows so that the first and second spring members are mutually symmetrical in the opposing rows. As a result, the respective forces from the wall surfaces and the second contacts are balanced between the two rows, so that the first contacts and second contacts can be caused to contact each other with a high well-balanced contact pressure. Thus, an electrical connector which provides a secure electrical connection can be obtained.
- Embodiments of an electrical connector and of the present invention will now be described by way of example with reference to the accompanying drawings in which:
- Figures 1 - 4 illustrate a plug connector a of an electrical connector. Figure 1 is a plan view, Figure 2 is a side view, Figure 3 is an end view, and Figure 4 is a schematic plan view of a board on which the plug connector is mounted.
- Figure 5 is a cross-sectional view of the plug connector shown in Figures 1 - 4.
- Figures 6 - 9 illustrate a cap connector of the electrical connector. Figure 6 is a plan view, Figure 7 is a side view, Figure 8 is an end view, and Figure 9 is a schematic plan view of a board on which the cap connector is mounted.
- Figure 10 is a cross-sectional view of the cap connector shown in Figures 6-9.
- Figure 11 is a cross-sectional view which illustrates the connected state of the plug connector shown in Figures 1-4 and the cap connector shown in Figures 6-9.
- Figures 12-14 illustrate another embodiment of a cap connector of the electrical connector. Figure 12 is a plan view, Figure 13 is a side view, and Figure 14 is an end view.
- Figure 15 is a cross-sectional view of the cap connector shown in Figures 12-14.
- Figure 16 is a side view which illustrates a cap connector in a first embodiment of the electrical connector of the present invention.
- Figure 17 is a cross-sectional view which shows the cap connector in Figure 16 connected with a plug connector, illustrating the electrical contact between the ground contacts of the cap connector and the ground contacts of the plug connector.
- Figure 18 is a cross-sectional view which shows the cap connector in Figure 16 connected with a plug connector, illustrating the electrical contact between the signal contacts of the cap connector and the signal contacts of the plug connector.
- Figure 19 is a side view which illustrates the cap connector in a second embodiment of the electrical connector of the present invention.
- The general layout of the electrical connector and the special features of the contacts of the connector will be described with reference to Figures 1 through 11.
- Figures 1 - 5 illustrate the plug connector of the electrical connector. Figure 11 shows the plug connector and cap connector connected to each other.
- The electrical connector 10 (Figure 11) has a
plug connector 20 and acap connector 60 which are connected to each other. Theplug connector 20 is mounted on aboard 12, and thecap connector 60 is mounted on aboard 14. When theplug connector 20 andcap connector 60 are connected to each other, theboards - The plug connector 20 (Figs. 1-5) is equipped with a
housing 30 andcontacts 40. Thecontacts 40 have projections, for press fitting into contact-receiving cavities of thehousing 30 so as to be fastened to thehousing 30, and they are aligned in two rows in the direction of the length of thehousing 30. Thehousing 30 hasposts post holes board 12, and a metal-fastening fitting 36 which is soldered to a fasteningpad 12c on theboard 12. Furthermore, acentral wall 38 which extends in the direction of the length of thehousing 30 is formed in the central part of thehousing 30. Thiscentral wall 38 has twowall surfaces Contacts 40 are comprised ofcontact sections 41 including S-shapedfirst spring members 42 which have twobent portions second spring members 44 which havecontact projections 44a that electrically contact thecontact sections 82 ofcontacts 80 described later, andtermination sections 46 which are soldered toconductive pads 12d on theboard 12. Thecontact legs 42c of thefirst spring members 42 substantially contact thewall surfaces second spring members 44 viacontact projections 44a contact thecontact sections 82 of thecontacts 80. Thecontacts 40 are formed by stamping from single metal plates, which are superior in terms of conductivity and spring characteristics. Thecontacts 40 are installed at a pitch of 0.6 mm, and the height of thecontacts 40 from theboard 12 is approximately 3.00 mm. - The
cap connector 60 is equipped with ahousing 70 andcontacts 80. Thecontacts 80 are lined up in two rows along the length of thehousing 70. Thehousing 70 is equipped withposts post holes board 14, and a metal-fasteningfitting 76 which is soldered to afastening pad 14c on theboard 14. Furthermore,side walls 78 which extend in the direction of length of thehousing 70 are formed on both side portions of thehousing 70.Contacts 80 are comprised ofcontact sections 82 which electrically contact thecontact projections 44a of thesecond spring members 44 of thecontacts 40, andtermination sections 84 which are soldered toconductive pads 14d on theboard 14. Thecontacts 80 are formed by stamping and bending single metal plates which are superior in terms of conductivity and spring characteristics. Thecontacts 80 are installed at a pitch of 0.6 mm, and the height of thecontacts 80 from theboard 14 is approximately 3.0 mm. - When the
plug connector 20 andcap connector 60 are connected, as shown in Figure 11, the first andsecond spring members contacts 40 are clamped between thewall surfaces contact sections 82 of thecontacts 80. Furthermore, when thecontact projections 44a of thesecond spring members 44 are pressed against thecontact sections 82 of thecontacts 80, the first andsecond spring members contacts 80. Thus, when theplug connector 20 andcap connector 60 are connected, thecontacts 40 are clamped between thewall surfaces contacts 80, and are strongly pressed against both thewall surfaces contacts 80. Accordingly, even if thecontacts 40 are made smaller and shorter in order to reduce the pitch of thecontacts 40, thecontacts 40 and contacts 80 electrically and wipingly contact each other with a high contact pressure. Furthermore, since thecontacts 40 are arranged in two rows so that the first andsecond spring members contacts 40 are mutually symmetrical in the opposing rows, the respective forces betweencontacts contacts 40, so that thecontacts 40 andcontacts 80 contact each other with a high well-balanced contact pressure, thus making it possible to obtain an electrical connector which provides secure electrical connections. - A second embodiment of the electrical connector will be described with reference to Figures 12-15:
- The electrical connector of the second embodiment has a different cap connector. The plug connector has the same shape as the plug connector in the first embodiment. Accordingly, the cap connector will be described here.
- The
cap connector 90 is equipped with ahousing 100 andcontacts 120. Thecontacts 120 are lined up in two rows along the length of thehousing 100. Compared to thecontacts 80 of thecap connector 60 shown in Figures 6-9, thecontacts 120 are longer, with a length of approximately 9.00 mm. Thehousing 100 is equipped withposts post holes board 14, and a metal-fastening fitting 106 which is soldered to afastening pad 14c on theboard 14. Furthermore,side walls 108 extend in the direction of the length of thehousing 100 and are formed withopenings 108a. These openings are a characteristic feature of thecap connector 90. The reason for forming theopenings 108a will be described below. - The
housing 100 is ordinarily made of a synthetic resin, and is formed by injection molding using a mold which corresponds to the shape of thehousing 100. Thecontacts 120 are inserted into thehousing 100 after thehousing 100 has been molded. The spaces into which thecontacts 120 are inserted are formed in the injection-molded walls of thehousing 100 using long, slender pins known as core pins. After thehousing 100 has been injection-molded, these core pins are removed from thehousing 100. In cases where thecontacts 120 are long, the core pins are also naturally long, so that there is a danger that bending will occur when the core pins are pulled out of thehousing 100. Accordingly, theopenings 108a are formed in theside walls 108 of thehousing 100 in order to allow shortening of the core pins even in cases where thecontacts 120 are long. By thus forming theopenings 108a, it is possible to use a metal mold in the areas corresponding to theopenings 108a during injection molding. Furthermore, two short core pins which are respectively inserted from above and below are used in each area corresponding to a space into which one of thecontacts 120 is to be inserted. By thus using two short core pins to form spaces for the insertion of long contacts, it is possible to prevent bending of the core pins when they are pulled out of thehousing 100 following injection molding. - An embodiment of the electrical connector of the present invention will be described with reference to Figures 16-18.
- The
electrical connector 128 of this embodiment is characterized byshield plates 170 which are attached to the side surfaces ofwalls 158 of thehousing 152 of thecap connector 150, and by the shape of the ground contacts among the contacts of the plug connector. - The
electrical connector 128 of this embodiment is equipped with aplug connector 130 and acap connector 150 which are substantially similar in shape to theplug connector 20 andcap connector 60 of theelectrical connector 10 of the first embodiment illustrated in Figures 1 through 11.Ground contacts 134 and signalcontacts 136 are arranged in thehousing 132 of theplug connector 130. Furthermore,ground contacts 154 and signalcontacts 156 are also arranged in thehousing 152 of thecap connector 150. Moreover,shield plates 170 are respectively attached to both side surfaces ofwalls 158 of thehousing 152 of thecap connector 150. This attachment is accomplished by causing theshield plates 170 to slide relative to thehousing 152 so thatrespective projections 158a formed on the side surfaces ofwalls 158 enter thenarrow portions 172a ofslots 172 formed in theshield plates 170. Bridge contact sections S1 (supported at both ends) on which dimples 174 are formed, and tongue members S2 which are used to make spring contact with theground contacts 154 of thecap connector 150, are formed on theshield plates 170. - When the
plug connector 130 andcap connector 150 are connected, the bridge contact sections S1 of theshield plates 170 contact theextensions 134a of theground contacts 134, and the tongue members S2 springably contact thetermination sections 154a of theground contacts 154. If necessary, the tongue members S2 and thetermination sections 154a of theground contacts 154 may be soldered. Furthermore, in the assembly process, thetermination sections 154a of theground contacts 154 are soldered to theconductive pads 14d onboard 14. Accordingly, the heat generated when thecap connector 150 is mounted on theboard 14 may be utilized in order to solder the tongue members S2 and thetermination sections 154a of theground contacts 154. As is shown in Figure 18, thesignal contacts shield plates 170. - Furthermore, the
housing 152 of thecap connector 150 has projectingportions 159, andgrooves 160 which accommodate the projectingportions 138 ofhousing 132 at which the contact sections S1 andextensions 134a are located. The assembly process is as follows: Theshield plates 170 are first attached to thehousing 152 of thecap connector 150, after which thecontacts housing 152. Soldering is performed only when thecap connector 150 is attached to the board.Dimples 174 are formed in theshield plate 170, and thesedimples 174 electrically contact theextensions 134a of theground contacts 134. However, it would also be possible to omit thedimples 174. In the electrical connector of this first embodiment of the invention, therespective ground contacts single shield plate 170 to thehousing 152 of thecap connector 150. - Figure 19 illustrates a second embodiment of the electrical connector of the present invention. The difference between this electrical connector and the electrical connector of the first embodiment lies in the shape of the shield plates. In the
shield plates 180 of the electrical connector of this second embodiment, no projections are formed in the tongue members in order to prevent sagging of theslots 182. An effect similar to that obtained using theshield plates 170 shown in Figure 16 can also be obtained using theseshield plates 180.
Claims (11)
- An electrical connector assembly for electrical connection to conductive pads on board members (12, 14) comprisinga plug connector (130) including at least one row of electrical contacts (134, 136) with ground contacts (134) and signal contacts (136) arranged in the same row, the row extending along the plug housing (132), said electrical contacts including resilient contact sections extending in the mating direction from a base of the housing and termination sections for electrical connection to the conductive pads on one of the board members anda cap connector (150) including at least one row of electrical contacts (154, 156) with complementary ground contacts (154) and signal contacts (156) arranged in the same row, the row extending along an inner side of a cap housing (152), the electrical contacts (154, 156) including contact sections electrically connecting with the resilient contact sections of the plug connector when the plug connector and cap connector are mated together and termination sections (154 a) for electrical connection with the conductive pads of the other of the board members,
said cap connector (150) includes shield plates (170) attached to side surfaces of said housing (152), said shield plates (170) being connected to said ground contacts (154) and establishing ground interconnection to the other board member through said ground contacts (154) and to the ground contacts (134) of the plug connector (130) when the plug and cap connectors (130, 150) are mated together. - The electrical connector assembly of claim 1, characterised in that, said shield plates (170) have a plurality of tongue members (52) to make contact to the termination sections (154 a) of said ground contacts (154) whereby ground interconnection between said shield plates (170) and said other board member is achieved through said ground contacts (154).
- The electrical connector assembly of anyone of claims 1 or 2, characterised in that, said shield plates (170) have a plurality of bridge contact sections (S1) for contacting the ground contacts (134) of the plug connector (130) when the cap and plug connectors (150, 130) are mated together.
- The electrical connector assembly of anyone of claims 1, 2 or 3, characterised in that, said ground contacts (134) of the plug connector (130) have extensions (134 a) for contacting with said shield plates (170).
- The electrical connector assembly of claim 3, characterised in that, dimples (174) are formed on said bridge contact sections (S1), said dimples electrically contacting the ground contacts (134) when the cap and plug connectors (150, 130) are mated together.
- The electrical connector assembly of anyone of claim 1 to 5, characterised in that, the termination sections of both said ground and signal contacts (154, 156) of the cap connector (150) have a common shape.
- The electrical connector assembly of claims 1 to 6, characterised in that, the tongue members (S2) of the shield plates (170) are used to make spring contact with said ground contacts (154) of the cap connector (150).
- The electrical connector assembly of anyone of claims 1 to 7, characterised in that, the tongue members (S2) of the shield plates (170) are soldered to said ground contacts (154) of the cap connector (150).
- The electrical connector assembly of anyone of claims 1 to 8, characterised in that, the housing (152) of the cap connector (150) has projecting portions (159) and grooves (160) which accommodate projecting portions (138) of housing of housing (132) of the plug connector (130) at which the bridge contact sections (S1) are located.
- The electrical connector assembly of anyone of claims 1 to 9, characterised in that, each contact (134, 136) of the plug connector (130) includes a base portion having a beam extending upwardly therefrom, the beam including a contact section thereon for mating with a corresponding linear contact (154, 156) of the cap connector (150), the beam further including an S-shaped spring portion extending from the end thereof, the spring portion extending to an end portion that is substantially at the same height as the contact section on the upstanding beam.
- The electrical connector assembly of claim 10, characterised in that, upon mating the plug and cap connectors (130, 150) the spring end portion presses against a central wall of the plug connector (130) such that the S-shape contact sections of the plug connector are springably clamped between the linear contact sections of the cap connector (150) and the wall of the plug housing (132).
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2173795 | 1995-02-09 | ||
JP2173795 | 1995-02-09 | ||
JP21737/95 | 1995-02-09 | ||
EP95944133A EP0808520B1 (en) | 1995-02-09 | 1995-12-15 | Electrical connector for printed circuit boards |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95944133A Division EP0808520B1 (en) | 1995-02-09 | 1995-12-15 | Electrical connector for printed circuit boards |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0863585A1 EP0863585A1 (en) | 1998-09-09 |
EP0863585B1 true EP0863585B1 (en) | 2001-11-07 |
Family
ID=12063397
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95944133A Expired - Lifetime EP0808520B1 (en) | 1995-02-09 | 1995-12-15 | Electrical connector for printed circuit boards |
EP98108873A Expired - Lifetime EP0863585B1 (en) | 1995-02-09 | 1995-12-15 | Electrical connector for printed circuit boards |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95944133A Expired - Lifetime EP0808520B1 (en) | 1995-02-09 | 1995-12-15 | Electrical connector for printed circuit boards |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP0808520B1 (en) |
KR (1) | KR19980702071A (en) |
CN (1) | CN1096127C (en) |
DE (2) | DE69509136T2 (en) |
MY (1) | MY114986A (en) |
NO (1) | NO973654D0 (en) |
WO (1) | WO1996024969A1 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6015304A (en) * | 1995-12-29 | 2000-01-18 | Molex Incorporated | Ground-enhanced electrical connector |
US6019616A (en) * | 1996-03-01 | 2000-02-01 | Molex Incorporated | Electrical connector with enhanced grounding characteristics |
JP3350843B2 (en) * | 1996-12-20 | 2002-11-25 | モレックス インコーポレーテッド | Method of manufacturing electrical connector with insert mold |
JP3044604U (en) * | 1997-06-20 | 1998-01-06 | バーグ・テクノロジー・インコーポレーテッド | Electrical connector |
JP3264647B2 (en) * | 1998-02-16 | 2002-03-11 | ヒロセ電機株式会社 | Electrical connector having a shield plate |
US6142798A (en) * | 1998-08-11 | 2000-11-07 | The Whitaker Corporation | Cap housing for electrical connectors |
US6187246B1 (en) * | 1998-12-31 | 2001-02-13 | Berg Technology, Inc. | Method of manufacturing an extended height insulative housing for an electrical connector |
JP4333884B2 (en) * | 2007-03-01 | 2009-09-16 | 日本航空電子工業株式会社 | connector |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5141222B2 (en) * | 1972-12-06 | 1976-11-09 | ||
US5057028A (en) * | 1986-11-18 | 1991-10-15 | E. I. Du Pont De Nemours And Company | Receptacle having a nosepeice to receive cantilevered spring contacts |
US5009606A (en) * | 1989-12-18 | 1991-04-23 | Burndy Corporation | Separable electrical connector |
EP0450770B1 (en) * | 1990-04-02 | 1995-11-22 | The Whitaker Corporation | Surface mount connector |
US5199884A (en) * | 1991-12-02 | 1993-04-06 | Amp Incorporated | Blind mating miniature connector |
US5263870A (en) * | 1992-12-16 | 1993-11-23 | The Whitaker Corporation | Dual read-out SIMM socket for high electrical speed applications |
NL9300971A (en) * | 1993-06-04 | 1995-01-02 | Framatome Connectors Belgium | Circuit board connector assembly. |
JP2598650Y2 (en) * | 1993-12-14 | 1999-08-16 | モレックス インコーポレーテッド | Electrical connector for connecting printed circuit boards |
-
1995
- 1995-12-15 WO PCT/US1995/016465 patent/WO1996024969A1/en not_active Application Discontinuation
- 1995-12-15 CN CN95197578A patent/CN1096127C/en not_active Expired - Lifetime
- 1995-12-15 DE DE69509136T patent/DE69509136T2/en not_active Expired - Lifetime
- 1995-12-15 KR KR1019970705466A patent/KR19980702071A/en not_active Application Discontinuation
- 1995-12-15 EP EP95944133A patent/EP0808520B1/en not_active Expired - Lifetime
- 1995-12-15 DE DE69523786T patent/DE69523786T2/en not_active Expired - Lifetime
- 1995-12-15 EP EP98108873A patent/EP0863585B1/en not_active Expired - Lifetime
-
1996
- 1996-01-16 MY MYPI96000159A patent/MY114986A/en unknown
-
1997
- 1997-08-08 NO NO973654A patent/NO973654D0/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE69523786T2 (en) | 2002-06-13 |
DE69509136T2 (en) | 1999-11-11 |
CN1096127C (en) | 2002-12-11 |
DE69509136D1 (en) | 1999-05-20 |
EP0863585A1 (en) | 1998-09-09 |
MY114986A (en) | 2003-03-31 |
DE69523786D1 (en) | 2001-12-13 |
KR19980702071A (en) | 1998-07-15 |
NO973654L (en) | 1997-08-08 |
EP0808520A1 (en) | 1997-11-26 |
WO1996024969A1 (en) | 1996-08-15 |
CN1175322A (en) | 1998-03-04 |
EP0808520B1 (en) | 1999-04-14 |
NO973654D0 (en) | 1997-08-08 |
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