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CN110247215B - Plug, socket, and connector for substrate connection provided with same - Google Patents

Plug, socket, and connector for substrate connection provided with same Download PDF

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Publication number
CN110247215B
CN110247215B CN201910497001.4A CN201910497001A CN110247215B CN 110247215 B CN110247215 B CN 110247215B CN 201910497001 A CN201910497001 A CN 201910497001A CN 110247215 B CN110247215 B CN 110247215B
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CN
China
Prior art keywords
socket
plug
terminal
contact
contact terminal
Prior art date
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Active
Application number
CN201910497001.4A
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Chinese (zh)
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CN110247215A (en
Inventor
高平浩司
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Yamaichi Electronics Co Ltd
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Yamaichi Electronics Co Ltd
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Application filed by Yamaichi Electronics Co Ltd filed Critical Yamaichi Electronics Co Ltd
Priority to CN201910497001.4A priority Critical patent/CN110247215B/en
Publication of CN110247215A publication Critical patent/CN110247215A/en
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Publication of CN110247215B publication Critical patent/CN110247215B/en
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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
    • 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
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/73—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures connecting to other rigid printed circuits or like structures
    • 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
    • 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
    • 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
    • H01R12/91—Coupling devices allowing relative movement between coupling parts, e.g. floating or self aligning
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection

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  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

The substrate connecting connector includes: a plug (10) soldered and fixed to an electronic component mounting surface of a printed circuit board (PCB 1); and a socket (12) which is soldered and fixed to an electronic component mounting surface of a printed circuit board (PCB2) so as to face the plug (10), wherein a fixed portion (22am) and a movable piece portion (22an) of a power supply contact terminal (22ai) in the plug (10) are branched into a plurality of parts, and therefore, a flat plate-shaped contact portion of the contact piece portion (22ac) can easily move relative to the fixed terminal portion (22af) along with an internal insulator member (16) in the plug (10).

Description

Plug, socket, and connector for substrate connection provided with same
The present application is a divisional application of applications entitled "plug, socket, and board connecting connector including the same" having an application date of 2014, 9/17, and an application number of 201480082018.9 (international application number of PCT/JP 2014/074580).
Technical Field
The present invention relates to a plug and a socket for electrically connecting a plurality of printed boards to each other, and a board connecting connector including the same.
Background
In an electronic device, for example, a plurality of printed boards arranged to face each other are built in a relatively narrow space. Such a plurality of printed boards are electrically connected to each other via a board connection connector as shown in patent document 1, for example.
Such a board connection connector is configured to include, for example, a socket disposed on the 1 st printed wiring board and a plug disposed on the 2 nd printed wiring board disposed to face the 1 st printed wiring board.
The receptacle also includes a floating mechanism to absorb an error in a relative position with respect to the plug connected thereto, as shown in patent document 1, for example. Such a floating mechanism is configured to movably support the power terminal module with respect to the common case such that the power terminal module and the common case have a plurality of signal terminals and power terminals respectively provided at both ends. A space into which the partition wall of the plug is inserted is formed between the power terminal module and the signal terminal module in the receptacle.
Thus, in the case where the plug is connected to the socket, the signal terminal and the power terminal in the plug are connected without being deviated from each other by the interval in which the partition wall of the plug is inserted into the socket, and thus the 1 st printed wiring board and the 2 nd printed wiring board are electrically connected.
In addition, in a high-current connector to which a flexible substrate or the like is connected, for example, as shown in patent document 2, it is proposed that a terminal width of a power supply terminal is set to be twice a terminal width of a signal terminal.
Documents of the prior art
Patent document
Patent document 1: japanese laid-open patent publication No. 2006 and 85944
Patent document 2: japanese patent laid-open publication No. 2007-299701
Disclosure of Invention
The structure in which the two power terminal modules in the substrate connection connector provided with the floating mechanism as shown in patent document 1 are connected by the common housing involves the following problems: as the area occupied by the board connecting connector becomes relatively large in the printed wiring board, there is a high possibility that cracks are generated in the joining of the soldered terminal portion of the board connecting connector due to the difference between the linear expansion coefficient of the printed wiring board and the linear expansion coefficient of the outline portion of the board connecting connector. As a countermeasure against such a problem, it is conceivable to miniaturize the board connecting connector by constituting the board connecting connector with a single module.
However, when the size of the high-current board connection connector including the floating mechanism is reduced by a single module, the number of power supply terminals and signal terminals cannot be reduced, and therefore, the size reduction may be difficult. In such a case, in the high-current substrate connection connector, it is also conceivable to reduce the number of terminals by making the terminal width of the power supply terminal larger than the terminal width of the other signal terminals, but the floating mechanism may not operate smoothly because the terminal width of the power supply terminal is increased.
In view of the above problems, an object of the present invention is to provide a plug, a socket, and a board connecting connector including the same, which perform electrical connection between a plurality of printed boards, and in which a floating mechanism can be smoothly operated even when used under high current, and the board connecting connector can be miniaturized.
In order to achieve the above object, a connector for connecting substrates according to the present invention includes: the plug is disposed on the 1 st substrate, and includes: a socket connecting member having a socket connection port and movably supported; a plurality of contact terminals which support the socket coupling member so as to be movable in a direction orthogonal to the attaching/detaching direction and include at least one power supply contact terminal and at least one signal contact terminal electrically connected to the 1 st substrate; and a socket which is disposed on the 2 nd substrate and has a connection end portion detachably connected to the socket connection port of the socket connection member, the socket including a plurality of contact terminals including at least one power supply contact terminal and at least one signal contact terminal which are electrically connected to the plurality of contact terminals of the plug and to the 2 nd substrate when the connection end portion is connected to the socket connection port, the power supply contact terminal of the plug including a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, the movable piece portion being branched into a plurality of parts.
In addition, a plug according to the present invention is a plug disposed on a substrate, including: a socket connecting member having a socket connection port and movably supported; and a plurality of contact terminals which support the socket connection member so as to be movable in a direction orthogonal to the attaching/detaching direction and include at least one power supply contact terminal and at least one signal contact terminal electrically connected to the substrate, wherein the power supply contact terminal of the plug includes a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and the movable piece portion is branched into a plurality of parts.
The socket according to the present invention is characterized in that the socket is disposed on the board and has a connection end portion detachably connected to a socket connection port of a socket connection member of a plug having a plurality of contact terminals including at least one power supply contact terminal and at least one signal contact terminal, the socket includes a plurality of contact terminals electrically connected to the plurality of contact terminals of the plug and electrically connected to the board when the connection end portion is connected to the socket connection port, and the power supply contact terminal of the plug has a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and the movable piece portion is branched into a plurality of pieces.
The plug, the receptacle, and the connector for connecting substrates including the same according to the present invention include a plug disposed on the 1 st substrate, and including: a socket connecting member having a socket connecting port and supported to be movable; and a plurality of contact terminals which support the socket connecting member movably in a direction orthogonal to the attaching/detaching direction and include at least one power supply contact terminal and at least one signal contact terminal electrically connected to the 1 st substrate, wherein the power supply contact terminal of the plug includes a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and the movable piece portion is branched into a plurality of parts.
Drawings
Fig. 1 is an exploded perspective view showing an exploded plug used in embodiment 1 of the substrate connecting connector according to the present invention.
Fig. 2 is a perspective view showing the printed circuit board together with the 1 st embodiment of the substrate connecting connector of the present invention.
Fig. 3 is a perspective view showing the substrate connection connector in a state where the plug and the receptacle are separated in the example shown in fig. 2.
Fig. 4 is a perspective view of the socket and the plug in the example shown in fig. 2, as viewed from the bottom surface.
Fig. 5 is an exploded perspective view showing the socket in the example shown in fig. 2 in an exploded manner.
Fig. 6 is a front view showing the substrate connection connector in a state where the plug and the socket are connected in the example shown in fig. 2.
Fig. 7 is a sectional view taken along line VII-VII in fig. 6.
Fig. 8 is a front view showing the socket in the example shown in fig. 2.
Fig. 9 is a partial sectional view taken along line IX-IX in fig. 8.
Fig. 10 is a partially enlarged view of the X portion in fig. 9.
Figure 11 is a top view of the plug shown in figure 2.
Fig. 12 is a sectional view taken along line XII-XII in fig. 11.
Fig. 13 is a sectional view taken along line XIII-XIII in fig. 11.
Fig. 14A is a partially enlarged view of the XIVA portion in fig. 13.
Fig. 14B is a partially enlarged view of XIVB in fig. 13.
Fig. 14C is a partially enlarged view of the XIVC section in fig. 12.
Fig. 15 is a perspective view showing a connector for substrate connection according to embodiment 2 of the present invention.
Fig. 16 is a perspective view showing a modified example of the plug used in embodiment 2 of the connector for substrate connection according to the present invention.
Fig. 17 is a perspective view showing a connector for substrate connection according to embodiment 3 of the present invention.
Fig. 18 is a perspective view showing a plug in the example shown in fig. 17.
Fig. 19 is a partially enlarged view of the XIX portion in fig. 18.
Fig. 20 is a perspective view showing a connector for substrate connection according to embodiment 4 of the present invention.
Fig. 21 is a perspective view showing the socket in the example shown in fig. 20 in an exploded manner.
Fig. 22 is a perspective view showing a connector for substrate connection according to embodiment 5 of the present invention.
Fig. 23 is an exploded perspective view showing an example shown in fig. 22 in an exploded manner.
Fig. 24 is a perspective view showing a modification of the example shown in fig. 22.
Fig. 25 is a perspective view showing a cover support member provided around a socket fixed to a substrate.
Fig. 26 is a perspective view showing a state in which the electrification preventing cover is attached to the cover support member.
Detailed Description
Fig. 2 shows a 1 st embodiment of the substrate connecting connector of the present invention together with a part of a pair of printed circuit boards arranged to face each other.
In fig. 2, the printed circuit boards PCB1 and PCB2 are, for example, a motherboard and a daughter board connected to the motherboard. The types, sizes, and the like of the printed circuit boards PCB1 and PCB2 are not limited to this example, and may be any type of printed circuit board (JIS standard C5603), or may be, for example, a module substrate and a carrier board. The printed circuit boards PCB1 and PCB2 may be printed circuit boards on which electronic components are not mounted.
The substrate connecting connector includes: a plug 10 soldered to an electronic component mounting surface of the printed circuit board PCB 1; and a socket 12 soldered to an electronic component mounting surface of the printed circuit board PCB2 so as to face the plug 10.
As shown in fig. 3 to 5 in an enlarged manner, the socket 12 is integrally molded from a resin material and includes: a tip end thin portion 12A detachably inserted into a socket connection opening of an inner insulator member 16 of a plug 14 to be described later; a fixed end portion 12F fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion 12B for connecting the fixed end portion 12F and the distal end thin portion 12A.
The tip thin portion 12A extends along the longitudinal direction, i.e., the Y coordinate axis shown in fig. 3, and has an opposing outer peripheral surface parallel to the Y coordinate axis. Elongated grooves 12Si (i is 1 to n, and n is a positive integer) extending along the Z-coordinate axis shown in fig. 3 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. As shown in fig. 3 and 4, a signal contact terminal 30ai (i is 1 to n, n is a positive integer) and a ground contact terminal, which will be described later, are inserted into the elongated groove 12Si through a slit. In fig. 5, power supply terminal grooves 12Ci (i: 1 to 2) are formed adjacent to and in parallel with the right elongated groove 12 Si. The power supply terminal groove 12Ci has a width larger than that of the elongated groove 12 Si. As shown in fig. 3 and 4, a power supply contact terminal 32ai (i is 1 to 4) to be described later is inserted into the power supply terminal groove 12Ci through the slit. A protrusion 12KR for preventing erroneous insertion is formed at an end of the tapered portion 12A of the receptacle 12 where the side wall portions 12WR and 12WL are partially formed. The protrusion 12KR engages with the inner corner 16ER of the inner insulator member 16 shown in fig. 1 when the socket 12 is connected to the plug 14 in the normal posture shown in fig. 5.
The signal contact terminal 30ai is made of a thin wire material, and has: a fixed terminal portion 30af soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 2; a contact piece portion 30ac having a hook-like contact portion at a tip end; and a connecting piece portion 30as connecting the fixed terminal portion 30af and the contact piece portion 30 ac. The contact piece portion 30ac is formed substantially perpendicular to an end of one short side of the L-shaped connecting piece portion 30as at the end of the short side, and the fixed terminal portion 30af is formed substantially perpendicular to an end of the other long side of the connecting piece portion 30as at the end of the long side.
The power supply contact terminal 32ai is made of a thin metal plate material, and includes: a fixed terminal portion 32af soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 2; a contact piece portion 32ac having a hook-like contact portion branched into 3 at a tip end; and a connecting piece portion 32as connecting the fixed terminal portion 32af and the contact piece portion 32 ac. The contact piece portion 32ac is formed at an end of one short side of the L-shaped connecting piece portion 32as substantially perpendicular to the end of the short side, and the fixed terminal portion 32af is formed at an end of the other long side of the connecting piece portion 32as substantially perpendicular to the end of the long side. The widths W of the contact piece portion 32ac, the connecting piece portion 32as, and the fixed terminal portion 32af of the power supply contact terminal 32ai are set larger than the widths of the contact piece portion 30ac and the connecting piece portion 30as of the signal contact terminal 30 ai.
As shown in fig. 3 and 7, the connecting portion 12B has a recess 12R on the inside, and the connecting piece portion 30as of the signal contact terminal 30ai and the connecting piece portion 32as of the power supply contact terminal 32ai are disposed on the inner peripheral portion of the recess 12R.
As shown in fig. 9, fixing metal fittings 34 are press-fitted into grooves 12GR and 12GL formed at both ends of the fixed end portion 12F. As shown in fig. 5, the fixing metal fittings 34 include a fixing portion 34f press-fitted into the grooves 12GR and 12GL, and a pair of branched projecting pieces 34a soldered and fixed to the electronic component mounting surface of the printed circuit board PCB 2. As partially enlarged in fig. 10, the projecting piece 34a of the fixing metal fitting 34 projecting outward from the fixing surface of the fixing end portion 12F via the grooves 12GR and 12GL is inserted into the through hole TH2 of the printed circuit board PCB2 and fixed by soldering. A positioning pin 12P insertable into a positioning hole formed in the electronic component mounting surface of the printed circuit board PCB2 is integrally formed at the fixing end portion 12F in the periphery of the projecting piece 34 a.
Thus, as shown in fig. 8, in a state where the fixing surface of the fixing end portion 12F of the socket 12 is in contact with the electronic component mounting surface of the printed circuit board PCB2, the socket 12 is fixed to the electronic component mounting surface of the printed circuit board PCB2 such that the arrangement of the signal contact terminals 30ai and the power supply contact terminals 32ai is orthogonal to the electronic component mounting surface.
As shown in fig. 2 in an enlarged manner, the plug 10 includes: an outer insulator member 14 fixed to an electronic component mounting surface of the printed circuit board PCB1 and forming a contour portion; an inner insulator member 16 movably disposed in the inner insulator housing portion 14R of the outer insulator member 14; the electrostatic charge removing terminals include a ground contact terminal 20ai, a signal contact terminal 20bi (i is 1 to n, n is a positive integer), and a power supply contact terminal 22ai (i is 1 to 2).
The outer insulator member 14 is integrally molded from a resin material, and has an inner insulator housing portion 14R on the inside thereof that houses an inner insulator member 16 described later. The inner insulator housing portion 14R is formed by being surrounded by the side wall portions 14WR and 14WL and the terminal fixing wall 14WF that connects the side wall portions 14WR and 14 WL.
Claw portions 14NR and 14NL which can be engaged with the engagement holes 18Wa of the respective stopper fittings 18 are integrally formed in the vicinity of both ends of the outer peripheral portion of the opposing terminal fixing wall 14WF of the outer insulator member 14.
As shown in fig. 4, the stopper fittings 18 are fixed to the side wall portions 14WR and 14WL of the outer insulator member 14, respectively. Each stop fitting 18 is made of sheet metal material, for example, in the shape of a door. The stopper metal fitting 18 includes a top plate 18TW and side plates 18SW connected to both ends of the top plate 18 TW. The top plate 18TW has a notch in the center. Locking pieces 18ta for regulating the positions of a pair of projecting pieces 16KR of the inner insulator member 16 described later are formed to face each other at the peripheral edge portions where the notch portions are formed. In addition, a locking piece 18B that can be press-fitted into the narrow grooves 14GR and 14GL of the side wall portions 14WR and 14WL is formed in the center portion of the end portion of the top plate portion 18 TW. Each side plate 18SW has an engagement hole 18Wa for engaging the claw portion 14NR or the claw portion 14 NL. Each side plate 18SW has a solder fixing piece 18N at a lower end. As shown in fig. 14C in a partially enlarged view, the solder fixing piece 18N is inserted into and soldered to the through hole TH1 of the printed circuit board PCB 1.
Although not shown, grooves into which the fixing portions 20am of the grounding contact terminals 20ai, the fixing portions 20bm of the signal contact terminals 20bi, and the fixing portions 22am of the power supply contact terminals 22ai are inserted are formed in the inner peripheral portions of the terminal fixing walls 14 WF. Adjacent slots are separated from each other by a partition wall. The groove 14G into which the fixing portion 22am of the two power supply contact terminals 22ai is inserted is formed adjacently in a position close to the side wall portion 14WL in fig. 4. This allows the power supply lines to be concentrated in the layout design of the power supply lines on the printed circuit board PCB 1.
The groove 14G into which the fixing portion 20am of the grounding contact terminal 20ai is inserted is formed at a position closest to the side wall portion 14WR among the plurality of grooves. The grounding contact terminals 20ai are disposed opposite to the grounding contact terminals of the receptacle 12.
The width of the groove 14G into which the fixing portion 22am of the power supply contact terminal 22ai is inserted is set larger than the width of the groove into which the fixing portions 20am of the other grounding contact terminals 20ai and the fixing portions 20bm of the signal contact terminals 20bi are inserted.
Thus, the grounding contact terminal 20ai, the signal contact terminal 20bi, and the power supply contact terminal 22ai supported by the inner peripheral portion of each terminal fixing wall 14WF are arranged to face each other through the inner insulator member 16.
The power supply contact terminal 22ai is made of a thin metal plate material, and includes: a fixed terminal portion 22af soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion 22ac having a flat contact portion at a tip end thereof; a fixed portion 22am connected to the fixed terminal portion 22 af; and a movable piece portion 22an that connects the fixed portion 22am and the contact piece portion 22 ac. The fixed portion 22am and the movable piece portion 22an are branched into a plurality of pieces, for example, 5 pieces, and the fixed portion 22am and the movable piece portion 22an are formed to be longer than a flat contact portion of a contact piece portion 22ac to be described later. Since the fixed portion 22am and the movable piece portion 22an are thus branched into a plurality, the flat plate-like contact portion of the contact piece portion 22ac can be easily moved relative to the fixed terminal portion 22 af. The fixed portion 22am and the movable piece portion 22an are not limited to this example, and may be configured by 4 pieces, 6 pieces, or more, for example.
As shown in fig. 7, the flat plate-like contact portion of the contact piece portion 22ac is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 16, and the connecting portion where the movable piece portion 22an and the contact piece portion 22ac are connected supports the lower end portion of the inner insulator member 16.
The signal contact terminal 20bi is made of a thin wire material, and includes: a fixed terminal portion 20bf soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion 20bc having a contact point portion at a tip end; a fixed portion 20bm connected to the fixed terminal portion 20 bf; and a movable piece portion 20bn connecting the fixed portion 20bm and the contact piece portion 20 bc. As shown in fig. 7, the contact portion of the contact piece portion 20bc is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 16, and the lower end portion of the inner insulator member 16 is supported by the connecting portion where the movable piece portion 20bn is connected to the contact piece portion 20 bc.
The grounding contact terminal 20ai is made of a thin wire material, and has: a fixed terminal portion 20af soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion 20ac having a contact point portion at a tip end; a fixed portion 20am connected to the fixed terminal portion 20 af; and a movable plate portion 20an connecting the fixed portion 20am and the contact plate portion 20 ac. The length of the contact piece portion 20ac is set to be larger than the length of the contact piece portion 20bc of the signal contact terminal 20 bi. As shown in fig. 7, the contact portion of the contact piece portion 20ac is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 16, and the lower end portion of the inner insulator member 16 is supported by the coupling portion of the movable piece portion 20an to the contact piece portion 20 ac.
Thus, the inner insulator member 16 is supported by the power supply contact terminal 22ai, the signal contact terminal 20bi, and the ground contact terminal 20ai, and can therefore move a predetermined distance within the inner insulator housing 14R along the X coordinate axis direction and the Y coordinate axis direction in fig. 3. Therefore, the floating mechanism that supports the inner insulator member 16 so as to be relatively movable with respect to the outer insulator member 14 is formed by the power supply contact terminal 22ai, the signal contact terminal 20bi, and the ground contact terminal 20 ai. Accordingly, the socket 12 and the plug 10 can be easily attached and detached regardless of the relative position shift between the socket 12 and the plug 10, and stress causing cracks in the joint portion of the fixed terminal portion in the printed circuit boards PCB1 and PCB2 is suppressed.
As shown in fig. 1, the inner insulator member 16 as a socket connecting member is integrally molded from a resin material, and has a socket connecting port 16A detachably connected to the distal end thin portion 12A of the socket 12 on the inner side. The receptacle connecting port 16A is formed by being surrounded by the side walls 16WR and 16WL and a pair of terminal fixing walls 16WF connecting the side walls 16WR and 16 WL.
The side wall portions 16WR and 16WL have a pair of projecting pieces 16KR and 16KL that can be locked to the locking piece 18ta of the stopper fitting 18.
A plurality of grooves 16Gai (i is 1 to n, n is a positive integer) and 16Gbi (i is 1 to 2) into which the contact piece portion 20ac of the grounding contact terminal 20ai, the contact piece portion 20bc of the signal contact terminal 20bi, and the contact piece portion 22ac of the power supply contact terminal 22ai are inserted are formed in the inner peripheral portion of each terminal fixing wall 16 WF. Adjacent slots are separated from each other by a partition wall. In fig. 1 and 13, the groove 16Gbi into which the contact piece portion 20ac of the two power supply contact terminals 22ai is inserted is adjacently formed at a position close to the side wall portion 16 WL. As partially enlarged in fig. 14A, the uppermost end of the contact piece portion 20ac is located above the uppermost end of the contact piece portion 20bc of the signal contact terminal 20bi adjacent to the partition wall, and is set to a position close to the opening end of the inner insulator member 16. The width of the slot 16Gbi into which the contact piece portion 22ac of the power supply contact terminal 22ai is inserted is set larger than the width of the slot into which the contact piece portions 20ac of the other grounding contact terminals 20ai and the contact piece portions 20bc of the signal contact terminals 20bi are inserted.
The groove 16Gai into which the contact piece portion 20bc of the grounding contact terminal 20ai is inserted is formed at the position closest to the side wall portion 16WR among the plurality of grooves. As partially enlarged in fig. 14B, the uppermost end of the contact piece portion 20ac of the grounding contact terminal 20ai is located above the uppermost end of the contact piece portion 20bc of the signal contact terminal 20bi adjacent to the signal contact terminal 20bi with the partition wall interposed therebetween, and is set at a position close to the open end of the inner insulator member 16.
Thus, in the receptacle connecting port 16A, the grounding contact terminal 20ai, the signal contact terminal 20bi, and the power supply contact terminal 22ai supported by the inner peripheral portion of each terminal fixing wall 16WF are arranged to face each other.
In this structure, after the plug 10 and the socket 12 are soldered and fixed to the printed circuit boards PCB1 and PCB2, respectively, and the plug 10 and the socket 12 are to be connected, as shown in fig. 3, after the socket connection opening 16A of the inner insulator member 16 of the plug 10 and the distal end thinned portion 12A of the socket 12 are arranged to face each other, as shown in fig. 2, the distal end thinned portion 12A of the socket 12 is pressed into the socket connection opening 16A of the inner insulator member 16 against the elastic force of the contact piece portions of the signal contact terminal 30ai and the power supply contact terminal 32 ai. At this time, when the distal end thinned portion 12A of the socket 12 is pushed in the posture as shown in fig. 4, the protrusion 12KR for preventing erroneous insertion engages with the inner corner portion 16ER of the inner insulator member 16, and therefore, the distal end thinned portion 12A of the socket 12 is pushed into the socket connection port 16A as shown in fig. 7. On the other hand, when the projecting portion 12KR of the distal end thinned portion 12A of the socket 12 faces the fitting recessed portion 16EL inside the inner insulator member 16, the projecting portion 12KR and the recessed portion 16EL interfere with each other, and therefore, erroneous insertion of the socket 12 is avoided.
When the tip end thin portion 12A of the socket 12 is pressed into the socket connection port 16A as shown in fig. 7, static electricity is removed through the grounding contact terminal 20ai and the printed circuit board PCB 1.
On the other hand, when the receptacle 12 is to be removed from the plug 10, the distal end thinned portion 12A of the receptacle 12 is separated from the receptacle connecting port 16A of the inner insulator member 16.
Fig. 15 shows a connector for substrate connection of embodiment 2 of the present invention.
In the example shown in fig. 3, two power supply contact terminals 22ai are adjacently disposed at one end portions of the outer insulator member 14 and the inner insulator member 16 in the plug 10, but instead, in the example shown in fig. 15, grounding contact terminals 52ai (i ═ 1 to 4) are respectively provided at both ends of the plug, and power supply contact terminals 52bi (i ═ 1 to 4) are adjacently disposed between the grounding contact terminals 52ai and the signal contact terminals 20 bi.
In fig. 15, the same components as those in the example shown in fig. 2 are denoted by the same reference numerals, and redundant description thereof will be omitted.
The substrate connecting connector includes: a plug 40 soldered and fixed to an electronic component mounting surface of a printed circuit board PCB1 (not shown); and a socket 42 soldered and fixed to an electronic component mounting surface of the printed circuit board PCB2 (not shown) so as to face the plug 40.
The socket 42 is integrally molded from a resin material and is configured to include: a tip end thin portion 42A detachably inserted into a socket connection opening portion of an inner insulator member 46 of a plug 40 described later; a fixed end portion 42F fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion 42B for connecting the fixed end portion 42F and the distal end thin portion 42A.
The tip thin portion 42A extends along the longitudinal direction, i.e., the Y coordinate axis shown in fig. 15, and has an opposing outer peripheral surface parallel to the Y coordinate axis. A plurality of elongated grooves extending along the Z-coordinate axis shown in fig. 15 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. The signal contact terminals 30ai are inserted into the respective elongated slots through the slits. In fig. 15, a grounding terminal groove and a power supply terminal groove are formed adjacent to and in parallel with the elongated grooves located at both ends. The ground terminal groove and the power terminal groove have a width larger than the width of the elongated groove. The grounding contact terminal 32 'ai and the power supply contact terminal 32' bi (i is 1 to 4) are inserted into the grounding terminal groove and the power supply terminal groove through the slit. A projection 42KR for preventing erroneous insertion is formed at an end of the tip end thin portion 42A of the receptacle 42 where the side wall portions 42WR and 42WL are partially formed. The projection 42KR engages with an inner corner 46ER of an inner insulator member 46 described later when the socket 42 is connected to the plug 40 in the normal posture shown in fig. 15.
The grounding contact terminal 32 'ai and the power supply contact terminal 32' bi are made of a thin metal plate material in the same manner as the power supply contact terminal 32ai shown in fig. 5, and include: a fixed terminal part soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 2; a contact piece portion having a hook-shaped contact portion at a tip end thereof; and a connecting piece portion connecting the fixed terminal portion and the contact piece portion. The contact piece portion is formed at an end of one short side of the L-shaped connecting piece portion substantially perpendicularly to the end of the short side, and the fixed terminal portion is formed at an end of the other long side of the connecting piece portion substantially perpendicularly to the end of the long side. The widths of the contact piece portions, the connecting piece portions, and the fixed terminal portions of both the grounding contact terminals 32 'ai and the power supply contact terminals 32' bi are set larger than the widths of the contact piece portions 30ac and the connecting piece portions 30as of the signal contact terminals 30 ai.
The connection portion 42B of the socket 42 has a recess 42R on the inner side, and the connection piece portions 30as of the signal contact terminals 30ai, the ground contact terminals 32 'ai, and the power supply contact terminals 32' bi are arranged on the inner peripheral portion of the recess 42R.
The fixing metal fittings 34 are press-fitted into grooves formed at both ends of the fixing end portion 42F of the socket 42. A positioning pin 42P insertable into a positioning hole formed in the electronic component mounting surface of the printed circuit board PCB2 is integrally formed at the fixing end portion 42F in the periphery of the projecting piece 34 a.
Thus, in a state where the fixing surface of the fixing end portion 42F of the socket 42 is in contact with the electronic component mounting surface of the printed circuit board PCB2, the socket 42 is fixed to the electronic component mounting surface of the printed circuit board PCB2 so that the arrangement of the signal contact terminal 30ai, the ground contact terminal 32 'ai, and the power supply contact terminal 32' bi is orthogonal to the electronic component mounting surface.
The plug 40 is constituted to include: an outer insulator member 44 fixed to an electronic component mounting surface of the printed circuit board PCB1 and forming a contour portion; an inner insulator member 46 movably disposed in the inner insulator housing portion 44R of the outer insulator member 44; the electrostatic charge removing terminals include power supply contact terminals 52bi (i is 1 to 4), signal contact terminals 20bi (i is 1 to n, n is a positive integer), and ground contact terminals 52ai (i is 1 to 4).
The outer insulator member 44 is integrally molded from a resin material, and has an inner insulator housing portion 44R on the inside thereof that houses an inner insulator member 46 described later. The inner insulator housing portion 44R is formed by being surrounded by the side wall portions 44WR and 44WL and the terminal fixing wall 44WF that connects the side wall portions 44WR and 44 WL.
Claw portions 44NR and 44NL that engage with the engagement holes 18Wa of the respective stopper fittings 18 are integrally formed in the vicinity of both ends of the outer peripheral portion of the opposing terminal fixing walls 44WF of the outer insulator member 44.
Although not shown, grooves into which the fixing portions of the power supply contact terminals 52bi, the fixing portions 20bm of the signal contact terminals 20bi, and the fixing portions of the ground contact terminals 52ai are inserted are formed in the inner peripheral portions of the terminal fixing walls 44 WF. Adjacent slots are separated from each other by a partition wall. In fig. 15, grooves into which the fixing portions of the grounding contact terminals 52ai are inserted are adjacently formed at positions close to the side wall portions 44WR and 44 WL.
The groove into which the fixing portion of the power supply contact terminal 52bi is inserted is adjacently formed between the groove into which the fixing portion of the grounding contact terminal 52ai is inserted and the groove into which the fixing portion of the signal contact terminal 20bi is inserted.
The width of the groove into which the fixing portions of the grounding contact terminal 52ai and the power supply contact terminal 52bi are inserted is set larger than the width of the groove into which the fixing portion 20bm of the other signal contact terminal 20bi is inserted.
Thus, the power supply contact terminal 52bi, the signal contact terminal 20bi, and the ground contact terminal 52ai supported by the inner peripheral portion of each terminal fixing wall 44WF are arranged to face each other with the inner insulator member 46 interposed therebetween.
The grounding contact terminal 52ai is made of a thin metal plate material, and includes: a fixed terminal part soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion having a flat-plate-shaped contact portion at a tip end thereof; a fixing portion connected to the fixing terminal portion; and a movable piece portion connecting the fixed portion and the contact piece portion. The flat contact portion of the contact piece portion is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 46, and the lower end portion of the inner insulator member 46 is supported by a connecting portion where the movable piece portion and the contact piece portion are connected.
The power supply contact terminal 52bi is made of a thin metal plate material, and includes: a fixed terminal part soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion having a contact point portion at a tip end; a fixing portion connected to the fixing terminal portion; and a movable piece portion connecting the fixed portion and the contact piece portion. The length of the contact piece portion is set to be slightly larger than the length of the contact piece portion 20bc of the signal contact terminal 20bi and smaller than the length of the contact piece portion of the ground contact terminal 52 ai. The contact portion of the contact piece portion is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 46, and the lower end portion of the inner insulator member 46 is supported by the connecting portion of the movable piece portion and the contact piece portion.
Thus, the inter-insulator member 46 is supported by the grounding contact terminal 52ai, the signal contact terminal 20bi, and the power supply contact terminal 52bi, and can move a predetermined distance within the inter-insulator housing portion 44R along the X-coordinate axis direction and the Y-coordinate axis direction in fig. 15. Therefore, the floating mechanism that supports the inner insulator member 46 so as to be relatively movable with respect to the outer insulator member 44 is formed by the grounding contact terminal 52ai, the signal contact terminal 20bi, and the power supply contact terminal 52 bi.
The inner insulator member 46 is integrally molded from a resin material, and has a socket connection port 46A detachably connected to the distal end thin portion 42A of the socket 42 on the inner side. The receptacle connecting port 46A is formed by being surrounded by the side wall portions 46WR and 46WL and a pair of terminal fixing walls 46WF connecting the side wall portions 46WR and 46 WL.
The side wall portions 46WR and 46WL each have a pair of projecting pieces (not shown) that engage with the engaging pieces 18ta of the above-described stopper fitting 18.
A plurality of grooves into which the contact piece portions of the power supply contact terminals 52bi, the contact piece portions 20bc of the signal contact terminals 20bi, and the contact piece portions of the ground contact terminals 52ai are inserted are formed in the inner peripheral portion of each terminal fixing wall 46 WF. Adjacent slots are separated from each other by a partition wall. The grooves into which the contact piece portions of the contact terminals 52ai for grounding are inserted are adjacently formed at positions close to the side wall portions 46WL and 46 WR. The position of the uppermost end of the contact piece portion is located above the position of the uppermost end of the contact piece portion of the power supply contact terminal 52bi adjacent to the partition wall, and is set to a position close to the opening end of the internal insulator member 46. The width of the groove into which the contact piece portions of the grounding contact terminal 52ai and the power supply contact terminal 52bi are inserted is set larger than the width of the groove into which the contact piece portion 20bc of the other signal contact terminal 20bi is inserted.
Thus, in the socket connection port 46A, the power supply contact terminal 52bi, the signal contact terminal 20bi, and the ground contact terminal 52ai supported by the inner peripheral portion of each terminal fixing wall 46WF are arranged to face each other.
In this example as well, when the distal end thinned portion 42A of the socket 42 is pushed in the posture as shown in fig. 15, the protrusion 42KR for preventing erroneous insertion engages with the inner corner portion 46ER of the inner insulator member 46, and therefore the distal end thinned portion 42A of the socket 42 is pushed into the socket connection port 46A. On the other hand, when the projecting portion 42KR of the distal end thinned portion 42A of the socket 42 faces the fitting recessed portion 46EL on the inner side of the inner insulator member 46, the projecting portion 42KR and the recessed portion 46EL interfere with each other, and therefore, erroneous insertion of the socket 42 is avoided.
When the tip end thin portion 42A of the socket 42 is pressed into the socket connection port 46A, static electricity is removed through the grounding contact terminal 52ai and the printed circuit board PCB 1.
In this example, the length of the contact piece portion of the power supply contact terminal 52bi is set to be slightly larger than the length of the contact piece portion 20bc of the signal contact terminal 20bi and smaller than the length of the contact piece portion of the adjacent ground contact terminal 52ai, but this is not necessarily required, and for example, as shown in fig. 16, two power supply contact terminals 52bi having the same length of the contact piece portion and a ground contact terminal adjacent to the power supply contact terminal 52bi may be provided at both ends of the inner side of the inner insulator member 46. The length of the contact piece portion of the ground contact terminal is set to be larger than the length of the contact piece portion of the adjacent signal contact terminal.
Fig. 17 shows a connector for substrate connection according to embodiment 3 of the present invention.
In the example shown in fig. 1, two power supply contact terminals 22ai are provided at one end portion of the inner insulator member 16 of the plug 10, and the ground contact terminal 20ai is provided near the other end portion of the inner insulator member 16, but instead, in the example shown in fig. 17, the ground contact terminals 20ai are provided at both ends of the inner insulator member 56 of the plug 53, and the power supply contact terminal 20ci (i 1 to 4) and the signal contact terminal 20bi are provided adjacent to the ground contact terminal 20 ai.
In fig. 17, the same components as those in fig. 1 and 5 are denoted by the same reference numerals, and redundant description thereof is omitted.
The substrate connecting connector includes: a plug 53 soldered and fixed to an electronic component mounting surface of a printed circuit board PCB1 (not shown); and a socket 51 soldered and fixed to an electronic component mounting surface of the printed circuit board PCB2 (not shown) so as to face the plug 53.
The socket 51 is integrally molded from a resin material, and is configured to include: a tip end thin portion detachably inserted into a socket connection opening portion of an inner insulator member 56 of a plug 53 described later; a fixed end portion fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion for connecting the fixed end portion and the tip end thin portion.
The tip thin portion extends along the longitudinal direction, i.e., the Y coordinate axis shown in fig. 17, and has an opposing outer peripheral surface parallel to the Y coordinate axis. A plurality of elongated grooves extending along the Z-coordinate axis shown in fig. 17 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. The ground contact terminal 30bi, the power contact terminal 30ci, and the signal contact terminal 30ai are inserted into the respective elongated grooves through the slits.
A projection (not shown) for preventing erroneous insertion is formed at an end of a tip end thin portion of the socket 51 forming a part of the side wall portion. The protrusion engages with an inner corner (not shown) of an inner insulator member 56 described later when the socket 51 is connected to the plug 53 in the normal posture shown in fig. 17.
The ground contact terminal 30bi and the power supply contact terminal 30ci are made of thin wire materials in the same manner as the signal contact terminal 30ai, and include: a fixed terminal part soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 2; a contact piece portion having a hook-shaped contact portion at a tip end thereof; and a connecting piece portion connecting the fixed terminal portion and the contact piece portion.
The connection portion of the socket 51 has a recess 51R on the inside, and the connection piece portions of the signal contact terminals 30ai, the ground contact terminals 30bi, and the power contact terminals 30ci are disposed on the inner peripheral portion of the recess 51R.
The fixing fittings 33 are press-fitted into grooves formed at both ends of the fixing end of the socket 51. A positioning pin 51P inserted into a positioning hole formed in the electronic component mounting surface of the printed circuit board PCB2 is formed integrally with the fixing end portion on the periphery of the fixing metal fitting 33.
Thus, in a state where the fixing surface of the fixing end of the socket 51 is in contact with the electronic component mounting surface of the printed circuit board PCB2, the socket 51 is fixed to the electronic component mounting surface of the printed circuit board PCB2 such that the arrangement of the signal contact terminal 30ai, the ground contact terminal 30bi, and the power supply contact terminal 30ci is orthogonal to the electronic component mounting surface.
As shown in fig. 18 in an enlarged manner, the plug 53 includes: an outer insulator member 54 fixed to an electronic component mounting surface of the printed circuit board PCB1 and forming a contour portion; an inner insulator member 56 movably disposed in the inner insulator housing portion 54R of the outer insulator member 54; the electrostatic charge removing terminals include a ground contact terminal 20ai (i is 1 to 2), a signal contact terminal 20bi (i is 1 to n, n is a positive integer), and a power supply contact terminal 20ci (i is 1 to 4).
The outer insulator member 54 is integrally molded from a resin material, and has an inner insulator housing portion 54R on the inside thereof that houses an inner insulator member 56 described later. The inner insulator housing portion 54R is formed by being surrounded by opposing side wall portions and a terminal fixing wall connecting the side wall portions.
Claw portions that engage with the engagement holes 18Wa of the respective stopper fittings 18 are integrally formed in the vicinity of both ends of the outer peripheral portions of the opposing terminal fixing walls of the outer insulator member 54.
Although not shown, grooves into which the fixing portions 20am of the grounding contact terminals 20ai, the fixing portions 20bm of the signal contact terminals 20bi, and the fixing portions of the power supply contact terminals 22ci are inserted are formed in the inner peripheral portions of the terminal fixing walls. Adjacent slots are separated from each other by a partition wall.
In fig. 19, the groove into which the fixing portion 20am of the grounding contact terminal 20ai is inserted is a groove formed at a position closest to one side wall portion among the plurality of grooves.
Thus, the ground contact terminal 20ai, the signal contact terminal 20bi, and the power contact terminal 20ci supported by the inner peripheral portion of each terminal fixing wall are arranged to face each other with the inner insulator member 56 interposed therebetween.
The power supply contact terminal 20ci is made of a thin wire material, and includes: a fixed terminal part soldered and fixed to an electronic component mounting surface of the printed circuit board PCB 1; a contact piece portion having a contact point portion at a tip end; a fixing portion connected to the fixing terminal portion; and a movable piece portion connecting the fixed portion and the contact piece portion. The contact portion of the contact piece portion is inserted into and fixed to a groove formed in the inner peripheral portion of the inner insulator member 56, and the lower end portion of the inner insulator member 56 is supported by the connecting portion of the movable piece portion and the contact piece portion.
Thus, the inter-insulator member 56 is supported by the power supply contact terminal 20ci, the signal contact terminal 20bi, and the ground contact terminal 20ai, and therefore can move a predetermined distance within the inter-insulator housing portion 54R along the X-coordinate axis direction and the Y-coordinate axis direction in fig. 17. Therefore, the floating mechanism that supports the inner insulator member 56 so as to be relatively movable with respect to the outer insulator member 54 is formed by the power supply contact terminal 20ci, the signal contact terminal 20bi, and the ground contact terminal 20 ai. Accordingly, the socket 51 and the plug 53 can be easily attached and detached regardless of the relative position shift between the socket 51 and the plug 53, and stress causing cracks in the joint portion of the fixed terminal portion in the printed circuit boards PCB1 and PCB2 is suppressed.
The inner insulator member 56 is integrally molded from a resin material, and has a socket connection port 56A detachably connected to the distal end thin portion of the socket 51 on the inner side. The receptacle connecting port 56A is surrounded by the opposing side wall portions 56WR and 56WL, and a pair of terminal fixing walls connecting both the side wall portions 56WR and 56 WL.
The side wall portions 56WR and 56WL each have a pair of projecting pieces (not shown) that engage with the engaging pieces 18ta of the above-described stopper fitting 18.
A plurality of grooves into which the contact piece portions 20ac of the grounding contact terminals 20ai, the contact piece portions 20bc of the signal contact terminals 20bi, and the contact piece portions of the power supply contact terminals 22ci are inserted are formed in the inner peripheral portion of each terminal fixing wall. Adjacent slots are separated from each other by a partition wall. As partially enlarged in fig. 19, the uppermost end portion of the contact piece portion 20ac of the grounding contact terminal 20ai is located above the uppermost end portion of the contact piece portion of the power supply contact terminal 22ci adjacent to the partition wall, and is set to a position close to the open end of the inner insulator member 56.
The groove into which the contact piece portion 20bc of the grounding contact terminal 20ai is inserted is formed at the position closest to the side wall portion 56WL among the plurality of grooves.
Thus, in the receptacle connection port 56A, the grounding contact terminal 20ai, the signal contact terminal 20bi, and the power supply contact terminal 22ci supported by the inner peripheral portion of each terminal fixing wall are arranged to face each other.
In this structure, after the plug 53 and the socket 51 are soldered and fixed to the printed circuit boards PCB1 and PCB2, respectively, and when the plug 53 and the socket 51 are to be connected, after the tip end thin portions of the socket connecting port 56A of the inner insulator member 56 of the plug 53 and the socket 51 are arranged so as to face each other, the tip end thin portions of the socket 51 are pressed into the socket connecting port 56A of the inner insulator member 56 against the elastic force of the contact piece portions of the grounding contact terminal 30bi, the signal contact terminal 30ai, and the power supply contact terminal 30 ci. When the tip end detail of the socket 51 is pressed into the socket connection port 56A as shown in fig. 17, static electricity is removed through the grounding contact terminal 20ai and the printed circuit board PCB 1.
On the other hand, when the socket 51 is to be removed from the plug 53, the distal end thin portion of the socket 51 is separated from the socket connection port 56A of the inner insulator member 56.
Fig. 20 shows a 4 th embodiment of the connector for substrate connection according to the present invention.
In the example shown in fig. 2, the static electricity is removed through the printed circuit board PCB2 via the grounding contact terminal in the socket 12, but instead, in fig. 20, the socket 12' provided with the grounding fitting 13 as the static electricity removing member is configured to remove the static electricity through the grounding fitting 13 and the printed circuit board PCB 2. Thus, when the live worker touches the socket 12', static electricity from the worker is removed via the grounding metal fitting 13 and the printed circuit board PCB 2.
In fig. 20, the same components as those in the example shown in fig. 2 are denoted by the same reference numerals, and redundant description thereof will be omitted.
The substrate connecting connector includes: a plug soldered and fixed to the electronic component mounting surface of the printed circuit board PCB 1; the socket 12' is soldered to the electronic component mounting surface of the printed circuit board PCB2 so as to face the plug.
The plug has the same configuration as shown in fig. 1, for example.
The socket 12' is integrally molded from a resin material and is configured to include: a tip thin portion 12' a detachably inserted into a connection opening portion of an inner insulator member of the plug; a fixed end portion 12' F fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion 12 ' B for connecting the fixed end portion 12 ' F and the distal end thin portion 12 ' a.
The tip thin portion 12' a extends along the longitudinal direction, i.e., the Y-axis shown in fig. 20, and has an opposite outer peripheral surface parallel to the Y-axis. Elongated grooves extending along the Z-coordinate axis shown in fig. 20 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. The signal contact terminals 30ai (i is 1 to n, n is a positive integer) are inserted into the elongated slots through the slits. In fig. 20, power supply terminal grooves are formed adjacent to and parallel to the right elongated groove. The power terminal groove has a width larger than that of the elongated groove. The power supply contact terminal 32ai (i is 1 to n, and n is a positive integer) is inserted into the power supply terminal groove through the slit. A projection for preventing erroneous insertion is formed at an end of a tip end narrowed portion 12 'a of the receptacle 12' forming a part of the side wall portions 12 'WR and 12' WL. The protrusion engages with an inner corner of the inner insulator member when the socket 12' is connected to the plug in a regular posture.
The connection portion 12' B has a recess in the inner periphery thereof, and the connection piece portion 30as of the signal contact terminal 30ai and the connection piece portion 32as of the power supply contact terminal 32ai are disposed.
On the side wall portions 12 'WR and 12' WL and the distal end surface of the distal end narrowed portion 12 'a of the socket 12', a ground fitting 13 as an electrostatic charge removing member is disposed. The grounding metal fitting 13 is made of a strip-shaped thin plate metal material in a gate shape. The ground metal fitting 13 includes a linear portion 13a abutting on the distal end surface of the distal end thinned portion 12 ' a, and leg portions 13b and 13c abutting on the side wall portions 12 ' WR and 12 ' WL, respectively. The tips of the legs 13b and 13c penetrate the fixed end portion 12' F and are soldered to the ground line of the conductor pattern of the printed circuit board PCB 2. Thereby, static electricity of the socket 12' which is not yet charged and connected to the plug is removed via the grounding metal fitting 13 and the grounding line of the conductor pattern of the printed circuit board PCB 2.
Fixing fittings (not shown) are press-fitted into grooves (not shown) formed at both ends of the fixing end portion 12' F. The tab of the fixing metal fitting protruding outward from the fixing surface of the fixing end portion 12' F through the groove is inserted into the through hole of the printed circuit board PCB2 and fixed by soldering. A positioning pin 12 'P inserted into a positioning hole formed in the electronic component mounting surface of the printed circuit board PCB2 is formed integrally with the fixing end portion 12' F on the periphery of the protruding piece.
Thus, in a state where the fixing surface of the fixing end portion 12 ' F of the socket 12 ' is in contact with the electronic component mounting surface of the printed circuit board PCB2, the socket 12 ' is fixed to the electronic component mounting surface of the printed circuit board PCB2 such that the arrangement of the signal contact terminals 30ai and the power supply contact terminals 32ai is orthogonal to the electronic component mounting surface.
Fig. 22 shows a 5 th embodiment of the connector for substrate connection according to the present invention.
In the example shown in fig. 20, the static electricity is removed through the grounding metal fittings 13 in the socket 12' via the printed circuit board PCB2, but instead, in the example shown in fig. 22, the socket 62 includes 6 grounding plates 60 as the static electricity removing member. The 6 grounding plates 60 are arranged in a straight line at predetermined intervals inside the socket 62.
The substrate connecting connector includes: the above-described plug soldered to the electronic component mounting surface of the printed circuit board PCB 1; and a socket 62 soldered to the electronic component mounting surface of the printed circuit board PCB2 so as to face the plug.
The plug has the same configuration as shown in fig. 1, for example.
The socket 62 is integrally molded from a resin material and is configured to include: a tip thin portion 62A detachably inserted into a connection opening portion of an inner insulator member of the plug; a fixed end portion 62F fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion 62B connecting the fixed end portion 62F and the distal end thin portion 62A.
The tip thin portion 62A extends along the longitudinal direction, i.e., the Y-axis shown in fig. 22, and has an opposing outer peripheral surface parallel to the Y-axis. Elongated grooves extending along the Z-coordinate axis shown in fig. 22 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. The signal contact terminals 30ai (i is 1 to n, n is a positive integer) are inserted into the elongated slots through the slits. In fig. 22, power supply terminal grooves are formed adjacent to and parallel to the elongated grooves at the left end. The power terminal groove has a width larger than that of the elongated groove. The power supply contact terminals 32ai (i 1 to 4) are inserted into the power supply terminal grooves through the slits. A projection for preventing erroneous insertion is formed at an end of the tip end thinned portion 62A of the receptacle 62 where the side wall portions 62WR and 62WL are formed. The protrusion engages with an inner corner of the inner insulator member of the plug when the socket 62 is connected to the plug in a regular posture. As shown in fig. 23, slits 62Di (i 1 to 6) into which the grounding plate 60 is inserted are formed at predetermined intervals in the center portion of the distal end thin portion 62A. The slit 62Di communicates with a recess of a coupling portion 62B described later. The grounding plate 60 has a shoulder portion at one end portion and a solder fixing terminal portion 60a at the other end portion. The soldered fixed terminal portion 60a is soldered to a ground line of a conductor pattern of the printed circuit board PCB 2.
Thus, the grounding plate 60 is disposed at a predetermined interval from the power supply contact terminal 32ai and the signal contact terminal 30ai to each other. The soldered fixed terminal portion 60a is soldered to a ground line of a conductor pattern of the printed circuit board PCB 2. Thereby, static electricity of the socket 62 which is not yet charged and connected to the plug is removed via the grounding plate 60 and the grounding line of the conductor pattern of the printed circuit board PCB 2. In addition, when the charged worker touches the socket 62, static electricity from the worker is removed via the grounding plate 60 and the printed circuit board PCB 2.
The connection portion 62B has a recess in the inner periphery thereof, and the connection piece portion 30as of the signal contact terminal 30ai and the connection piece portion 32as of the power supply contact terminal 32ai are disposed.
The number of the grounding plates 60 is not limited to this example, and may be, for example, 7 or more or 5 or less, and as shown in fig. 24, the receptacle 64 may include 4 grounding plates 60 depending on the number of the signal contact terminals and the length of the receptacle in the longitudinal direction. Therefore, by changing the number of signal contact terminals and the length of the receptacle in the longitudinal direction, for example, even when the receptacle is miniaturized, the common ground plate 60 can be arranged without a significant change in design.
The socket 64 is integrally molded from a resin material and is configured to include: a tip thin portion 64A detachably inserted into a connection opening portion of an inner insulator member of the plug; a fixed end portion 64F fixed to an electronic component mounting surface of the printed circuit board PCB 2; and a connecting portion 64B for connecting the fixed end portion 64F and the distal end thin portion 64A.
The tip thin portion 64A extends along the longitudinal direction, i.e., the Y-axis shown in fig. 24, and has an opposing outer peripheral surface parallel to the Y-axis. Elongated grooves extending along the Z-coordinate axis shown in fig. 24 are formed at predetermined intervals in a predetermined range of the outer peripheral surface. The signal contact terminals 30ai (i is 1 to n, n is a positive integer) are inserted into the elongated slots through the slits. In fig. 24, power supply terminal grooves are formed adjacent to and parallel to the elongated grooves at the left end. The power terminal groove has a width larger than that of the elongated groove. The power supply contact terminals 32ai (i 1 to 4) are inserted into the power supply terminal grooves through the slits. A projection for preventing erroneous insertion is formed at an end of the tip end thin portion 64A of the receptacle 64 where the side wall portions 64WR and 64WL are partially formed. The protrusion engages with an inner corner of the inner insulator member of the plug when the socket 64 is connected to the plug in a regular posture. As shown in fig. 24, slits 64Di (i 1 to 4) into which the grounding plate 60 is inserted are formed at predetermined intervals in the center portion of the distal end thin portion 64A. The slit 64Di communicates with a recess of a coupling portion 64B described later.
Thus, static electricity of the socket 64 which is not yet connected to the plug and is charged is removed via the grounding plate 60 and the grounding line of the conductor pattern of the printed circuit board PCB 2.
In the case where the socket 12 does not include a contact terminal or a ground fitting as the static electricity eliminating member, the lid support member 11 may be provided around the socket 12 on the printed circuit board PCB 2as partially enlarged in fig. 25, and the electrification preventing lid 15 covering the socket 12 may be attached to the lid support member 11 as partially enlarged in fig. 26. This prevents the electrification of the socket 12 not yet connected to the plug from being caused by the electrification preventing cover 15. In the plug 10 not yet connected to the socket, as shown by the two-dot chain line in fig. 3, the static electricity eliminating member SH electrically connected to the stopper fitting 18 may be provided on the outer peripheral portion of the inner insulator member 16. Thus, in the case where a charged worker touches the inner insulator member 16 of the plug 10, static electricity from the worker is removed via the static electricity removing member SH and the printed circuit board PCB 1.
Description of the reference numerals
10. 40, 53, plug; 12. 12', 42, 51, 62, 64, socket; 13. a fitting for grounding; 16. 46, 56, inner insulator member; 20ai, 52ai, contact terminals for grounding; 20bi, signal contact terminal; 22ai, a power supply contact terminal; 60. and a grounding plate.

Claims (7)

1. A connector for connecting substrates, characterized in that,
the substrate connecting connector comprises:
a plug disposed on the 1 st substrate, and including: a receptacle coupling member having a receptacle connection port surrounded by a pair of terminal fixing walls spaced apart from each other and a pair of side wall portions spaced apart from each other, supported to be movable, and having a corner portion and a fitting recess portion on an inner side, the pair of side wall portions each having a pair of projecting pieces extending outward in opposite directions; a plurality of contact terminals that support the socket connecting member so as to be movable in a longitudinal direction and a short-side direction orthogonal to a mounting/dismounting direction, and that include at least one power supply contact terminal and at least one signal contact terminal electrically connected to the 1 st substrate; and a stopper member having a pair of locking pieces extending along the terminal fixing wall and locked to the pair of projecting pieces of the socket coupling member, respectively, for regulating positions of the socket coupling member along a direction of attachment and detachment of the socket coupling member and the short side direction;
a socket which is disposed on the 2 nd substrate and has a connection end portion detachably connected to the socket connection port of the socket connection member, the connection end portion being formed with a protrusion for preventing erroneous insertion which engages with the corner portion or interferes with the fitting recess portion, the socket including a plurality of contact terminals including at least one power supply contact terminal and at least one signal contact terminal which are electrically connected to the plurality of contact terminals of the plug and to the 2 nd substrate when the connection end portion is connected to the socket connection port,
the contact piece portion of the power supply contact terminal of the plug is fixed to one of the pair of terminal fixing walls, which are separated from each other, of the socket connecting member to form the socket connecting port, and the contact piece portion of the power supply contact terminal of the plug has a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and is branched into a plurality of pieces.
2. The connector for substrate connection according to claim 1,
the plug and the socket further include static electricity removing means for releasing static electricity to the 1 st substrate and the 2 nd substrate, respectively, and the static electricity removing means is a contact terminal for grounding disposed adjacent to the plurality of contact terminals.
3. The connector for substrate connection according to claim 1,
the plug and the socket are further provided with static electricity removing members for releasing static electricity to the 1 st substrate and the 2 nd substrate, respectively, and the static electricity removing members provided in the socket are at least one grounding plate disposed at a predetermined distance between the contact terminals facing each other.
4. A plug is characterized in that a plug body is provided with a plug body,
the plug is disposed on the substrate and includes: a receptacle coupling member having a receptacle connection port connected to the connection end portion and surrounded by a pair of terminal fixing walls spaced apart from each other and a pair of side wall portions spaced apart from each other, the receptacle coupling member being supported so as to be movable, and having a corner portion on an inner side thereof, the corner portion being engaged with a projection portion for preventing erroneous insertion of the connection end portion, and a fitting recess portion interfering with the projection portion for preventing insertion, the pair of side wall portions each having a pair of projection pieces extending outward in opposite directions; a plurality of contact terminals that support the socket connecting member so as to be movable in a longitudinal direction and a short-side direction orthogonal to a mounting/dismounting direction, and that include at least one power supply contact terminal and at least one signal contact terminal electrically connected to the board; and a stopper member having a pair of locking pieces extending along the terminal fixing wall and locked to the pair of projecting pieces of the socket coupling member, respectively, for regulating positions of the socket coupling member along a direction of attachment and detachment of the socket coupling member and the short side direction,
the contact piece portion of the power supply contact terminal of the plug is fixed to one of the pair of terminal fixing walls, which are separated from each other, of the socket connecting member to form the socket connecting port, and the contact piece portion of the power supply contact terminal of the plug has a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and is branched into a plurality of pieces.
5. The plug of claim 4,
the plug further comprises a static electricity removing member for releasing static electricity to the substrate,
the static electricity removing member is a contact terminal for grounding disposed adjacent to the plurality of contact terminals.
6. A socket is characterized in that a socket body is provided with a plurality of grooves,
the socket is provided with:
a connection end portion detachably connected to a socket connection port of a socket connection member of a plug having the socket connection member, the socket connection member having a socket connection port surrounded by a pair of terminal fixing walls spaced apart from each other and a pair of side wall portions spaced apart from each other, being supported so as to be movable, and having a corner portion and a fitting recess portion inside, the pair of side wall portions each having a pair of projecting pieces extending outward in opposite directions, the connection end portion being formed with a projecting portion for preventing erroneous insertion that engages with the corner portion or interferes with the fitting recess portion; and
a plurality of contact terminals including at least one power supply contact terminal and at least one signal contact terminal that are electrically connected to the plurality of contact terminals of the plug and to the substrate when the connection end portion disposed on the substrate is connected to the receptacle connection port,
the contact piece portion of the power supply contact terminal of the plug is fixed to one of a pair of terminal fixing walls, which are separated from each other, of the socket connecting member to form a socket connecting port, and the contact piece portion of the power supply contact terminal of the plug has a movable piece portion connected to a contact piece portion having an area larger than an area of the contact piece portion of the signal contact terminal, and is branched into a plurality of pieces.
7. The socket of claim 6,
the socket further includes a static electricity removing member for releasing static electricity to the substrate,
the static electricity removing member is a contact terminal for grounding disposed adjacent to the contact terminal for signal.
CN201910497001.4A 2014-09-17 2014-09-17 Plug, socket, and connector for substrate connection provided with same Active CN110247215B (en)

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CN201910497001.4A CN110247215B (en) 2014-09-17 2014-09-17 Plug, socket, and connector for substrate connection provided with same

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CN201910497001.4A CN110247215B (en) 2014-09-17 2014-09-17 Plug, socket, and connector for substrate connection provided with same
CN201480082018.9A CN107078426B (en) 2014-09-17 2014-09-17 Plug, socket, and connector for substrate connection provided with same
PCT/JP2014/074580 WO2016042625A1 (en) 2014-09-17 2014-09-17 Plug, socket, and board connecting connector equipped with same

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CN110247215B true CN110247215B (en) 2021-07-30

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CN (2) CN110247215B (en)
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CN107078426A (en) 2017-08-18
WO2016042625A1 (en) 2016-03-24
CN107078426B (en) 2021-03-09
DE112014006961T5 (en) 2017-06-14
CN110247215A (en) 2019-09-17
JPWO2016042625A1 (en) 2017-06-15
JP6428781B2 (en) 2018-11-28

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