JP2008016271A - Floating connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating connector capable of securing a floating amount equivalent to pitch reduction while further reducing the pitch, and strong against adverse environment of dust or the like. <P>SOLUTION: This floating connector is composed of: first sockets 2A and 2B mounted on first and second printed boards 1A and 2B horizontally arranged in parallel with each other; and a plug 3 connecting the first and second sockets 2A and 2B to each other; and is provided with an intermediate insulation member 50 covering, from the upper side over nearly the total length, intermediate parts of respective plug contacts 30 between first and second plug bodies 40A and 40B at both ends of the plug 3 fitted to the first and second sockets 2A and 2B. The intermediate insulation member 50 is provided, on its undersurface, with a plurality of contact grooves 53 for inserting the respective plug contacts 30 in parallel with one another to secure insulation of the intermediate parts of the plug contacts 30. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a connector for connecting printed circuit boards inside an electronic device. Specifically, the printed circuit boards arranged in parallel in the horizontal direction (mounting) absorb the displacement in the three directions of the front and rear, left and right directions, and the vertical direction. And a floating connector that connects horizontally.

  This type of floating connector requires more high-density mounting and miniaturization as a component to be mounted on a printed circuit board inside the device due to the multi-function and miniaturization of the electronic device. The pitch between the gaps is narrowed.

  However, the conventional floating connector has flexibility on the plug side connecting the printed circuit boards, and has elasticity (stretchability) in the length direction by bending the intermediate portion along the length direction. The plug contact made of a plurality of elongated conductors is held at both ends by a plug-type insulator block that fits into the insulator block and the socket mounted on the printed circuit board, but the middle part has another insulation There is a risk of short-circuiting due to mutual contact between adjacent plug contacts only by being held at equal intervals by the member. Unless the floating amount is suppressed, the pitch between contacts cannot be reduced, and the limit of narrowing the pitch is not possible. Has reached.

  In addition, there is a risk of a short circuit due to the presence of conductive foreign matter such as dust between adjacent plug contacts, and this is more likely to occur when the pitch between the contacts is reduced, and thus the limit of narrowing the pitch is reached.

Conventional floating connectors as described above are known from Patent Documents 1, 2, and 3, for example.
Japanese Patent Laid-Open No. 2-50975 JP-A-3-79180 JP-A-4-28186

  The problem to be solved by the present invention is that the conventional floating connector cannot narrow the pitch without impairing the floating amount, and is weak against the bad environment such as dust and cannot narrow the pitch.

  According to the present invention, a plurality of socket contacts are held in parallel in an insulating socket body, and the first and second sockets mounted on the first and second printed circuit boards arranged in parallel in the horizontal direction are formed from an elongated conductor. And a plug formed by holding both ends of a plurality of flexible plug contacts in parallel with the insulating first and second plug bodies, the first and second plug bodies of the plug being the first plug body. And the both ends of each plug contact of the plug are held in contact with the socket contacts of the first and second sockets, and the first and second printed circuit boards are connected horizontally. In the floating connector, the plug includes an intermediate insulating member that covers each plug contact between the first and second plug bodies from substantially the entire length from above. And providing a plurality of contact grooves intermediate insulating member is inserted through each plug contact between the first and second plug body to the lower surface in parallel.

  Since the middle part of each plug contact is inserted into the contact groove of the intermediate insulation member, insulation of the plug contact can be maintained even if the contact pitch is reduced, and short-circuiting may occur due to mutual contact between adjacent plug contacts. There is no need to suppress the floating amount as the pitch becomes narrower.

  In addition, since the middle part of each plug contact is covered with an intermediate insulating member from above, short-circuiting due to the presence of conductive foreign matter such as dust between adjacent plug contacts is less likely to occur, which is highly resistant to adverse environments such as dust. Become. The intermediate insulating member exhibits the same function regardless of the contact pitch, and can maintain insulation of the plug contact even if the contact pitch is reduced.

  The intermediate insulating member can be provided in the plug either separately or integrally with the first and second plug bodies. When it is provided separately, the burden on the mold production can be reduced, and when it is provided integrally, the burden on assembly can be reduced by reducing the number of parts. Moreover, when providing integrally, a 1st and 2nd plug body and an intermediate | middle insulating member are integrally connected by the rib which has flexibility, and an intermediate | middle insulating member does not disturb floating.

  According to the present invention, while further narrowing the pitch, the amount of floating can be assured as before the pitch is narrowed, contributing to multi-functionality and downsizing of electronic devices, and against adverse environments such as dust. Can also provide a strong floating connector.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 is a bottom view of a floating connector according to an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a cross-sectional view showing a state in which the socket and the plug in FIG. 1 is a cross-sectional view taken along the line BB of FIG. 1, FIG. 5 is a cross-sectional view showing a state where the socket and the plug of FIG. 4 are separated, FIG. 6 is a perspective view showing the external appearance of the socket, and FIG. 8A is a bottom view of the plug, FIG. 8B is a plan view of FIG. 8A, FIG. 8C is a right side view of FIG. 9A, and FIG. 9A is a side view of a plug contact continuous terminal. , (B) is a plan view of (A), (A) of FIG. 10 is a bottom view of the plug body, (B) is a plan view of (A), (C) is a left side view of (A), (D ) Is a right side view of (A), (E) is a rear view of (A), (F) is a cross-sectional view taken along line AA of (A), (A) of FIG. 11 is a bottom view of the intermediate insulating member, (B) is ( ), (C) is a right side view of (A), (D) is a rear view of (A), (E) is a sectional view taken along line AA of (A), and FIGS. (C) is an explanatory diagram of floating.

  1 to 5, reference numerals 1A and 1B denote first and second printed circuit boards that are arranged (mounted) in parallel in the horizontal direction inside an electronic device such as a thin TV, for example. First and second sockets 2A and 2B that constitute the floating connector according to the embodiment of the present invention with plugs to be described later are mounted on the upper surface (component mounting surface) on the opposite end side of 1B. The first and second sockets 2A and 2B are the same, and when the first and second printed circuit boards 1A and 1B are mounted without shifting to a predetermined position inside the device, the first and second sockets 2A and 2B shown in FIG. The center lines L between the second printed boards 1A and 1B are arranged symmetrically with respect to the symmetry axis.

  As shown in FIGS. 1 to 6, the first and second sockets 2 </ b> A and 2 </ b> B are formed by inserting a plug body of a plug, which will be described later, into the front part of a horizontally long socket body 20 made of insulating resin from above. A plug fitting recess 21 to be fitted is provided, a lower end is opened to the lower surface of the socket body 20 on the rear side of the plug fitting recess 21, and a partition wall with the plug fitting recess 21 is broken to form the plug fitting recess 21. A plurality of narrow contact grooves 22 communicating with each other are provided in parallel at a predetermined pitch with a constant gap in the left and right lateral directions, and each contact groove 22 is bent in a substantially inverted U shape along the length direction. Socket contacts 23 made of elongate conductors are fitted one by one from below and are held in an insulated state so as not to contact each other between adjacent socket contacts 23.

  Each socket contact 23 is sandwiched between the left and right groove walls of the contact groove 22 on one side of the folded portion and fixed along the rear groove wall, and the other side of the folded portion is a gap between the left and right groove walls of the contact groove 22. The movable contact piece 24 is a cantilever beam, and the contact portion at the tip of the movable contact piece 24 projects into the plug fitting recess 21. The opposite end of the socket contact 23 is bent substantially horizontally so as to be substantially flush with the lower surface of the socket body 20 and protrudes from the contact groove 22 to the rear side of the socket body 20. It is a soldering portion 25 for surface mounting on 1A and 1B.

  As described above, the first and second sockets 2A and 2B are a surface mount in which a plurality of socket contacts 23 are held in parallel at a predetermined pitch at a predetermined interval on an insulating socket body 20 provided with a plug fitting recess 21. It is configured as a part.

  The first and second sockets 2A and 2B are fitted in the positioning holes 2 on the first and second printed circuit boards 1A and 1B when the first and second sockets 2A and 2B are mounted on the lower surface of the socket body 20. Positioning protrusions 26 for positioning the first and second sockets 2A and 2B with respect to the first and second printed circuit boards 1A and 1B are provided, and L-shaped reinforcing terminals are provided on the left and right side surfaces of the socket body 20. 27 is attached, and the front end side of the bent portion of the reinforcing terminal 27 protrudes to the left and right lateral outer sides of the socket body 20 so as to be substantially flush with the lower surface of the socket body 20, and solders to the upper surfaces of the first and second printed circuit boards 1A and 1B. It is the attaching part 27a. An engagement claw 28 for fixing the plug is provided on the rear side surface of the socket body 20. The flat upper surface 29 on the rear side of the plug fitting recess 21 of the socket body 20 is a suction space for automatic mounting (for surface mounting) of the first and second sockets 2A and 2B.

  The first and second sockets 2A and 2B are continuously supplied from an automatic supply device (feeder) to an automatic mounting device (mounter), and a flat upper surface 29 of the socket body 20 by a suction nozzle attached to the head of the automatic mounting device. Is adsorbed and transferred to predetermined positions on the upper surfaces of the first and second substrates 1A and 1B. Thereafter, the soldering portion 25 of each socket contact 23 is reflow soldered to the electrodes of the first and second substrates 1A and 1B through a reflow furnace, and the soldering portion 27a of each reinforcing terminal 27 is the first. And it solders to upper surface parts other than the electrode of 2nd board | substrate 1A, 1B, and is fixed mechanically and electrically connected (surface mounting).

  Next, the plug 3 constituting the floating connector according to the embodiment of the present invention with the first and second sockets 2A and 2B as described above will be described.

  As shown in FIGS. 1 to 5 and FIGS. 7 to 11, the plug 3 is made of an elongated conductor and has flexibility, and the same number of plug contacts 30 as the socket contacts 23 of the first and second sockets 2A and 2B. First and second plug bodies 40A and 40B made of an insulating resin that holds both ends of each plug contact 30 in parallel at the same interval and pitch as the socket contacts 23, and the first and second plug bodies 40A and 40B. Each plug contact 30 in between, that is, an intermediate insulating member 50 that holds the intermediate portion of each plug contact 30 in parallel at the same interval and pitch as both ends.

  As shown in FIG. 1 to FIG. 3 and FIG. 7 to FIG. 9, each plug contact 30 is a first in which the plug contacts 30 are bent in a substantially U shape along the length direction at both ends and protrude downward. In addition, in order to provide the second bent end portions 31A and 31B and to give each plug contact 30 elasticity (stretchability) in the length direction, each plug contact 30 has a length direction in the center portion of each plug contact 30. A central bent portion 32 that is bent in a substantially U shape and protrudes downward is provided, and is symmetrically formed with the center line L between the first and second printed circuit boards 1A and 1B shown in FIG. ing.

  As shown in FIGS. 1 to 5, 7, 8, and 10, the first and second plug bodies 40 </ b> A and 40 </ b> B are the same, and are inserted into the plug fitting recess 21 of the socket body 20 from above. A horizontally long and substantially rectangular parallelepiped body main body 41 to be fitted is provided with a substantially U-shaped narrow contact groove 42 along the three surfaces of the front side surface, the lower surface and the rear side surface, and the contact groove 42 is connected to the plug contact 30. The same number is provided in the left and right lateral directions of the body main body 41 at a constant interval and in parallel at the same pitch as the contact grooves 22 of the first and second sockets 2A and 2B. When the body body 41 is fitted to the upper end of the body body 41 in the plug fitting recess 21 of the socket body 20, the body body 41 is fitted to the outside of the socket body 20 from above, so A cover 43 that integrally covers the left and right side surfaces and the rear side surface is integrally formed. Further, the cover 43 is provided with a rectangular engagement hole 44 having a width substantially the same as that of the body main body 41 at the corner on the rear side of the upper portion, and the upward opening edges of the engagement hole 44 are the first and second sockets. It is an engagement surface 44a on the plug 3 side with respect to the engagement claws 28 on the 2A and 2B sides.

  Then, the first and second bent end portions 31A, 31B of each plug contact 30 are fitted one by one into the respective contact grooves 42 of the first and second plug bodies 40A, 40B, and the first and second plug bodies 40A, The surface of the body main body 41 of 40B is provided with a constant interval and is held in parallel at the same pitch as the socket contacts 25 so that the adjacent plug contacts 30 do not contact each other at the first and second bent end portions 31A and 31B. The first and second plug bodies 40A and 40B are arranged symmetrically with the center line L between the first and second printed circuit boards 1A and 1B shown in FIG. 1 as the axis of symmetry.

  As shown in FIGS. 2 and 3, each contact groove 42 of the first and second plug bodies 40 </ b> A and 40 </ b> B has a depth dimension that is substantially the same as the thickness dimension of the plug contact 30 along the rear side surface of the body main body 41. The folded portion along the lower surface of the body main body 41 is slightly deeper than the portion along the rear side of the body main body 41, and the portion along the front side of the body main body 41 is deeper than the portion along the lower surface of the body main body 41. The first and second bent end portions 31A and 31B of each plug contact 30 have a portion that rises from below on the rear side of the body body 41 and a folded portion on the lower side of the body body 41. The contact groove 42 is sandwiched between the left and right groove walls at the portion along the rear side and the lower surface of the body main body 41 and fixed along the bottom of the groove, and rises from the bottom to the top on the front side of the body main body 41. The portion of the contact groove 42 along the front side surface of the body main body 41 is inserted so as to provide a gap T1 between the groove bottom surface and the contact groove 42 so that the contact groove 42 can swing in the gap with the left and right groove walls. Thus, each plug contact 30 is given elasticity (stretchability) in its length direction.

  As shown in FIGS. 1 to 5 and FIGS. 7, 8, and 11, the intermediate insulating member 50 is a horizontally long rectangular flat cover portion that collectively covers the intermediate portion of each plug contact 30 from the top over substantially the entire length thereof. 51 and a fitting portion 51 a that is integrally suspended from the center of the lower surface of the cover portion 51 and fits into the central bent portion 32 of each plug contact 30. The lower side of the intermediate insulating member 50 A narrow contact groove 53 extending continuously in the front-rear direction from the end on the first plug body 40A side to the end on the second plug body 40B side of the cover portion 51 is provided on the surface, and the contact groove 53 is connected to the plug contact 30. The same number is provided in parallel in the left and right lateral directions of the intermediate insulating member 50 at the same interval and pitch as the contact grooves 42 of the first and second plug bodies 40A and 40B. In addition, a plate-like handle piece 54 is formed so as to protrude vertically from the center portion of the left and right side surfaces of the fitting portion 52.

  Then, an intermediate portion of each plug contact 30 is fitted into each contact groove 53 of the intermediate insulating member 50 one by one, and the first and second bent end portions 31A, 31A of each plug contact 30 on the lower surface of the intermediate insulating member 50, 31B are held in parallel at the same interval and pitch as those of 31B, and are held in an insulating state so that adjacent plug contacts 30 do not contact each other at the intermediate portion, and the intermediate insulating member 50 includes first and second printed circuit boards 1A, 1A, It is formed symmetrically with the center line L between 1B as the axis of symmetry.

  As shown in FIGS. 2 and 3, each contact groove 53 of the intermediate insulating member 50 is formed in a horizontal dimension along the lower surface of the cover part 51 to a depth dimension slightly larger than the thickness dimension of the plug contact 30, and is fitted A substantially U-shaped central bent portion on the surface of the portion 52 is formed so as to be deeper than horizontal portions on both sides thereof, and the groove width is formed to be slightly larger than the lateral width of the intermediate portion of the plug contact 30 over the entire length. The horizontal portion between the first and second bent end portions 31A and 31B and the central bent portion 32 of each plug contact 30 is inserted into the horizontal portion along the lower surface of the cover portion 51 of each contact groove 53, and the groove bottom surface. The intermediate insulating member 50 is supported from below, and the central bent portion 32 of each plug contact 30 has a gap T2 between the central bent portion of each contact groove 53 and the groove bottom surface. Is kicking inserted as an intermediate insulating member 50 is placed on the intermediate portion of each plug contact 30, an intermediate portion of each plug contact 30 is covered from above by the cover portion 50 of the intermediate insulating member 50.

  Further, the central bent portion 32 of each plug contact 30 is inserted into the central bent portion of each contact groove 53 so as to provide a gap T2 between the bottom surface of the groove and each plug contact 30 is formed in the gap between the left and right groove walls. A portion on one side and a portion on the other side of the lower bent portion of the central bent portion 32 can swing, and the first and second bent end portions 31A of the plug contact 30 are accompanied by the swing. The horizontal portion between 31B and the central bent portion 32 can be moved in the horizontal direction through the gap between the horizontal portion of the horizontal portion on both sides of the central bent portion of the contact groove 53, whereby each plug contact 30 has its It has elasticity (stretchability) in the length direction.

  As described above, the plug 3 is composed of a long and narrow conductor, and both ends of the flexible plug contact 30 are provided with a predetermined interval between the first and second plug bodies 40A and 40B that are insulative. An intermediate insulating member 50 that holds the plug contacts 30 between the first and second plug bodies 40A, 40B from the top over substantially the entire length, is held in parallel with the socket contacts 23 of the two sockets 2A, 2B, A plurality of contact grooves 53 for inserting the plug contacts 30 between the first and second plug bodies 40A, 40B are provided in parallel on the lower surface of the intermediate insulating member 50, and the first and second plug bodies 40A, The socket contacts of the first and second sockets 2A and 2B are provided with a certain distance between the plug contacts 30 between 40B over substantially the entire length. Tact 23 is configured to hold in parallel at the same pitch.

  The plug 3 is assembled by fitting the first and second bent end portions 31A and 31B of the continuous terminal 300, which is a chain-like plug contact shown in FIG. 9, into the contact grooves 42 of the first and second plug bodies 40A and 40B. After that, the intermediate insulating member 50 is assembled to the continuous terminal 300 between the first and second plug bodies 40A, 40B, and the lower surface of the intermediate insulating member 50 is removed so that the assembled intermediate insulating member 50 does not come off. Partially, for example, four corners (portions surrounded by circles in FIG. 8A) are thermally welded to close the downward openings at both ends of the several contact grooves 53 on both outer sides, and finally in FIG. The continuous terminal 300 is cut and separated into the carrier portions 301 and the individual plug contacts 30 at both ends at the positions indicated by the broken lines.

  As shown in FIGS. 3 and 5, the plug 3 configured as described above causes the first plug body 40A to oppose the first socket 2A mounted on the first printed circuit board 1A, and The plug body 40B is mounted on the socket body 20 of the first socket 2A with the plug body 40B facing the upper side of the second socket 2B mounted on the second printed circuit board 1B. The fitting body 21 is inserted into the fitting recess 21 from above, and the body body 41 of the second plug body 40B is inserted into the plug fitting recess 21 provided in the socket body 20 of the second socket 2B from above. 1, 2, and 4, the first bending of each plug contact 30 held in parallel with the body body 41 of the first plug body 40 </ b> A is performed. The portion 31A is held in contact with the contact portion at the tip of the movable contact piece 24 of each socket contact 23 held in parallel with the socket body 20 of the first socket 2A, and is held in parallel with the body main body 41 of the second plug body 40B. Further, the second bent end portion 31B of each plug contact 30 is held in contact with the contact portion at the tip of the movable contact piece 24 of each socket contact 23 held in parallel with the socket body 20 of the second socket 2B. Thus, the first socket 2A and the second socket 2B are connected by the plug 3, and the first printed board 1A and the second printed board 1B are electrically connected.

  When connecting the first and first printed circuit boards 1A and 1B as described above, as shown in FIG. 12A, the socket contacts 23 and the plug contacts are connected between the first and second printed circuit boards 1A and 1B. Even when there is a deviation Y along the arrangement direction of the plug 30, the plug 3 absorbs the deviation Y by bending each plug contact 30 between the first and second plug bodies 40A, 40B in the width direction, and the plug 3 1 and the first printed circuit boards 1A and 1B can be securely connected. As shown in FIG. 12B, the socket contacts 23 and the plug contacts are connected between the first and second printed circuit boards 1A and 1B. Even if there is a deviation X along the direction between the first and second printed circuit boards 1A and 1B (the length direction of the plug contact 30) orthogonal to the arrangement direction of the plug 30, the plug 3 is connected to each plug connector. The length of the tact 3 is changed by the central bent portion 32 and the first and second bent end portions 31A and 31B, so that the shift X is absorbed and the first and first printed circuit boards 1A and 1B are securely connected. Further, as shown in FIG. 12C, even when there is a deviation Z along the vertical direction between the first and second printed circuit boards 1A and 1B arranged in parallel in the horizontal direction, the plug 3 is Since each plug contact 30 between the first and second plug bodies 40A and 40B bends in the thickness direction, the displacement Z can be absorbed and the first and first printed boards 1A and 1B can be reliably connected.

  As described above, the plug 3 absorbs the shifts Y, X, and Z between the first and first printed circuit boards 1A and 1B due to the flexibility of each plug contact 30 (floating). At this time, since the intermediate portion of each plug contact 30 is inserted into the contact groove 53 of the intermediate insulating member 50, the insulation of the plug contact 30 can be maintained even if the pitch between the contacts is reduced. Therefore, it is not necessary to suppress the floating amount as the pitch is narrowed.

  Further, since the intermediate portion of each plug contact 30 is covered from above with the intermediate insulating member 50, it is difficult for a short circuit due to the presence of conductive foreign matter such as dust at the intermediate portion of the adjacent plug contact 30 to occur. Be strong in the bad environment. The intermediate insulating member 50 exhibits the same function regardless of the contact pitch, and can maintain the insulation of the plug contact 30 even if the contact pitch is reduced.

  Therefore, while further reducing the pitch, the amount of floating can be as much as before, contributing to multi-functionality and miniaturization of electronic equipment, and a floating connector that is strong against adverse environments such as dust. Yes.

  The first and second plug bodies 40 </ b> A and 40 </ b> B have a cover 43 formed integrally with the upper end of the body body 41 on the outside of the socket body 20 when the body body 41 is fitted into the plug fitting recess 21 of the socket body 20. The socket body 20 is fitted from above, and integrally covers the upper surface of the socket body 20, the left and right end portions of the front side surface, the left and right side surfaces, and the rear side surface, and the first bent end portion 31A of each plug contact 30 and each socket contact of the first socket 2A. The contact part of 23, the 2nd bending end part 31B, and the contact part of each socket contact 23 of the 2nd socket 2B suppress intrusion of conductive foreign substances, such as dust, and secure high contact reliability.

  In the first and second plug bodies 40A and 40B, when the cover 43 is fitted to the outside of the socket body 20, the engagement claw 28 for fixing the plug provided on the rear side surface of the socket body 20 is opened in the cover 43. The engagement surface 44a that is fitted inside the engagement hole 44 and that is an upward opening edge of the engagement hole 44 faces the engagement claw 28 from below, and the first and second plug bodies 40A, 40B The upward movement is restricted (prevention of removal), the first plug body 40A is fixed to the socket body 20 of the first socket 2A, the second plug body 40B is fixed to the socket body 20 of the second socket 2B, and the plug 3 Is fixed between the first and second sockets 2A and 2B (between the first and second printed circuit boards 1A and 1B).

  Next, a deformation structure on the plug side of the floating connector according to the embodiment of the present invention will be described with reference to FIGS.

  The plug 3 includes an intermediate insulating member 50 formed separately from the plug bodies 40A and 40B, and includes a plug contact 30, the plug bodies 40A and 40B, and the intermediate insulating member 50, thereby reducing the burden of mold manufacture. Although the three-piece structure is possible, a two-piece structure in which the intermediate insulating member 50 is provided integrally with the plug bodies 40A and 40B may be used, and the plug 60 having the first modified structure is shown in FIGS. B).

  The plug 60 having the first modified structure includes a front wall surface of the cover 43 of the first plug body 40A and the intermediate insulating member 50 where the first plug body 40A and the intermediate insulating member 50 are opposed to each other at both left and right ends. The two surfaces of one side surface of the handle piece 54 are integrally connected by a U-shaped and flexible rib 61, and the second plug body 40B and the intermediate insulating member 50 are opposed to each other at both left and right ends. The second plug body 40B is integrally connected by a U-shaped and flexible rib 61 between the surface of the front side wall of the cover 43 of the second plug body 40B and the other surface of the handle piece 54 of the intermediate insulating member 50. The first and second plug bodies 40A, 40B, the intermediate insulating member 50, and the rib 61 are integrally formed so that the intermediate insulating member 50 can swing between the first and second plug bodies 40A, 40B so as not to prevent floating. It is.

  With the plug 60 having the first modified structure as described above, the burden of assembly can be reduced by reducing the number of parts.

  In addition, the plug 3 is provided with a central bent portion 32 protruding downward at each plug contact 30 between the first and second plug bodies 40A, 40B, and has a structure suitable for connection in which the connector height needs to be suppressed. However, the central bent portion 32 may be provided so as to protrude upward, and the plug 70 having the second modified structure is shown in FIGS. 15, 16A, 16B, and 16C.

  The plug 70 having the second modified structure is provided with a central bent portion 71 in which each plug contact 30 is bent in a substantially inverted U shape along the length direction and protrudes upward at the center portion of each plug contact 30. Yes. Accordingly, the intermediate insulating member 50 is formed in a box shape in which the central portion of the cover portion 51 is opened downward, and rises in a horizontally long rectangular parallelepiped shape, and is formed on the lower surface of the cover portion 51 inside the raised portion 72. A partition wall (insulating wall) between the provided contact grooves 53 is formed so as to protrude, and each contact groove 53 is provided so as to protrude inside the raised portion 72. The central bent portion 71 of each plug contact 30 is fitted into each contact groove 53 provided inside the raised portion 72 one by one from the lower side, and is insulated so as not to contact each other inside the raised portion 72. It is held and covered from above and from the side by the raised portion 72.

  In the plug 70 having the first modified structure as described above, there are protrusions protruding between the first and second sockets 2A and 2B from between the first and second printed circuit boards 1A and 1B. This is effective when the central bent portion 32 cannot be provided by projecting downward from each plug contact 30 between the plug bodies 40A and 40B.

  Note that the plug 70 having the second deformed structure is similar to the plug 60 having the first deformed structure in that the first and second plug bodies 40A and 40B are formed by the rib 61 having the intermediate insulating member 50 having a U shape and flexibility. The first and second plug bodies 40A and 40B, the intermediate insulating member 50, and the ribs 61 are integrally formed. However, the first and second plug bodies 40A and 40B are integrally formed. For the two-piece structure of the deformed plugs 60 and 70, the first and second plug bodies 40A and 40B, the intermediate insulating member 50, and the rib 61 are separately formed, and the intermediate insulating member is formed by separate ribs 61 after the forming. 50 may be connected to the first and second plug bodies 40A, 40B. In this case, the plug has a four-piece structure of the plug contact 30, the plug bodies 40A, 40B, the intermediate insulating member 50, and the rib 61. That (plug of a third modified structure not shown).

  By the way, in the plug 3 and the plugs 60 and 70 having the first to third modified structures, only one central bent portion 32 and 71 is provided in the plug contact 30 between the first and second plug bodies 40A and 40B. The first and second printed circuit boards 1A and 1B have a structure suitable for connection with a narrow interval, but the number and positions of the central bent portions 32 and 71 are the first and second printed circuit boards 1A and 1B. It can be appropriately selected according to the interval.

  As mentioned above, although this Embodiment showed one suitable embodiment of this invention, this invention is not limited to it, It can implement variously within the range which does not deviate from the summary. For example, the surface mounting type is shown for the socket side structure, but an insertion mounting type may be used.

It is a bottom view of the floating connector which concerns on embodiment of this invention. It is the sectional view on the AA line of FIG. It is sectional drawing which shows the state which isolate | separated the socket and plug of FIG. It is BB sectional drawing of FIG. It is sectional drawing which shows the state which isolate | separated the socket and plug of FIG. It is a perspective view which shows the external appearance of a socket. It is a perspective view which shows the external appearance of a plug. (A) is a bottom view of the plug, (B) is a plan view of (A), and (C) is a right side view of (A). (A) is a side view of the continuous terminal for plug contacts, and (B) is a plan view of (A). (A) is a bottom view of the plug body, (B) is a plan view of (A), (C) is a left side view of (A), (D) is a right side view of (A), and (E) is ( The rear view of A) and (F) are the sectional views on the AA line of (A). (A) is a bottom view of the intermediate insulating member, (B) is a plan view of (A), (C) is a right side view of (A), (D) is a rear view of (A), (E) is ( It is AA sectional view taken on the line of A). (A), (B), and (C) are explanatory drawings of floating. It is a perspective view which shows the external appearance of the plug of a 1st deformation structure. (A) is a bottom view of a plug body and an intermediate insulating member having an integral structure of a plug having a first modified structure, and (B) is a plan view of (A). It is a perspective view which shows the external appearance of the plug of a 2nd deformation structure. (A) is a top view of the plug of the 2nd deformation structure, (B) is a bottom view of (A), (C) is an AA line sectional view of (A).

Explanation of symbols

1A 1st printed circuit board 1B 2nd printed circuit board 2A 1st socket 2B 2nd socket 3 Plug 20 Socket body 23 Socket contact 30 Plug contact 40A 1st plug body 40B 2nd plug body 50 Intermediate insulation member 53 Contact groove

Claims (2)

  A plurality of socket contacts are held in parallel in an insulating socket body, and the first and second sockets mounted on the first and second printed circuit boards arranged in parallel in the horizontal direction are composed of elongated conductors and are flexible. A plug formed by holding both ends of a plurality of plug contacts in parallel with insulating first and second plug bodies, and the first and second plug bodies of the plug are connected to the first and second sockets, respectively. In the floating connector that fits into the socket body of the plug, holds both end portions of each plug contact of the plug in contact with the socket contacts of the first and second sockets, and connects the first and second printed circuit boards horizontally. The plug includes an intermediate insulating member that covers each plug contact between the first and second plug bodies over the substantially entire length from above, and the intermediate insulation Floating connector and providing a plurality of contact grooves timber is inserted a respective plug contact between the first and second plug body to the lower surface in parallel.   The floating connector according to claim 1, wherein a flexible rib for integrally connecting the first and second plug bodies and the intermediate insulating member is provided.

Images