JP2015046371A - Connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connector, especially a connector to be mounted on a printed wiring board, having a terminal that is not damaged, e.g., deformed, even if the connector is fitted in the inclining state, and ensuring electrically stable connection.SOLUTION: Stable electrical connection can be ensured without causing any damage on a terminal, even if fitting to the mating connector is performed while inclining by providing a fitting recess, into which the mating connector is inserted from above, and a terminal housing recess continuous thereto laterally in the housing, housing a portion of a conductive metal terminal with a first bend having one end bent in substantially U-shape in the terminal housing recess, and forming a notch in the upper wall covering the terminal of the housing recess.

Description

  The present invention relates to a printed wiring board connector mounted on a printed wiring board, and is suitable for a suitable counterpart without causing damage or the like even when the mating connector is fitted in an inclined direction instead of a normal direction. The present invention relates to a connector for a printed wiring board having a structure capable of being connected to a side connector.

  Conventionally, for the electrical connection between a printed wiring board and a printed wiring board, as shown in FIG. 7, the printed wiring board connector 100 mounted on the printed wiring board 300 is mounted on the other printed wiring board 400. By fitting the mating connector 200, both printed wiring boards 300 and 400 are electrically connected, and the circuit patterns of both printed wiring boards are electrically connected.

  In the connector 100, a socket terminal 102 that can be elastically deformed is accommodated in an accommodation recess 104, and is assumed to be a socket connector 100 here. Further, the mating connector 200 has a plug terminal 202 fixed to the fitting convex portion 201, and is assumed to be the plug connector 200 here.

  In detail, the socket connector 100 is formed with a fitting recess 101 opened upward in a substantially rectangular shape in a substantially rectangular insulating socket housing 103, and is placed horizontally on the fitting recess 101 and covered upward. A socket terminal 102 made of a conductive metal curved in an arc shape is accommodated in the accommodating recess 104 with one end 105 protruding into the fitting recess 101. The plug connector 200 is formed with a fitting convex portion 201 protruding in a substantially rectangular shape on the housing 203, and a plug terminal 202 made of conductive metal is disposed along the side surface of the fitting convex portion 201.

  These socket connectors 100 are mounted by soldering the other end of the socket terminal 102 protruding outside the housing 103 to one printed wiring board 300, and the plug connector 200 is connected to the plug terminal 202 protruding outside the housing 203. The end portions are soldered to the other printed wiring board 400, and are engaged with each other as follows. In FIG. 7, the fitting convex portion 201 of the plug connector 200 is fitted into the fitting concave portion 101 of the socket connector 100 from above, and the socket terminal 102 curved in an arc shape in the accommodating concave portion 104 with respect to the fixed plug terminal 202 is formed. The one end 105 is elastically contacted with the plug terminal 202, whereby the socket terminal 102 and the plug terminal 202 are electrically connected, and the circuit pattern of the printed wiring board 300 on which the socket connector 100 is mounted and the plug connector 200 are connected. The circuit pattern of the printed wiring board 400 to be mounted is electrically connected.

JP 2010-50025 A

  However, when the plug connector 200 mounted on the printed wiring board 400 is fitted into the socket connector 100 mounted on the printed wiring board 300, the plug connector 200 is fitted from above the socket connector 100 due to the presence of the printed wiring boards 300 and 400. It is difficult to confirm the connected state. For this reason, the plug connector 200 may be fitted to the socket connector 100 from above with the tilted state. In this case, the following problems have occurred. When the plug connector 200 is about to be fitted to the socket connector 100 in an inclined state, the fitting convex portion 201 of the plug connector 200 or the plug terminal 202 exposed to the fitting convex portion 201 is the fitting concave portion of the socket connector 100. 101 is not inserted from the direction perpendicular to the plane direction of the printed wiring board 300 and hits the upper wall of the housing recess 104 of the socket connector 100, whereby the upper wall 106 is deformed and even the socket terminal 102 is deformed. In addition, a part of the upper wall 106 is cut off, and the chipped piece is interposed between the socket terminal 102 and the plug terminal 202 to prevent electrical connection, so that the socket connector 100 and the plug connector 200 can be suitably fitted and The problem was that electrical connections were not made.

  The present invention has been made in view of the above-described problems, and even when the connector mounted on each printed wiring board is fitted in an inclined state, the connector terminal is not damaged such as deformation. An object of the present invention is to provide a connector for a printed wiring board that is electrically connected.

In order to solve this conventional problem, the connector according to claim 1 is formed with a fitting recess into which the mating connector is inserted from above, and a terminal receiving recess that is continuously provided laterally to the fitting recess. A connector comprising: a housing; and a plurality of conductive metal terminals, one part of which is housed in the terminal housing recess, one end of which is bent in a substantially U shape and has a first bent portion protruding into the fitting recess. And the upper wall of the housing recess that covers the terminal is partially cut away by a notch.

  In the connector according to claim 2, in addition to the configuration according to claim 1, the terminal includes the first bent portion, a second bent portion that bends in a substantially U shape in the receiving recess, and the fitting. A third bent portion that rises upward from the vicinity of the bottom surface of the concave portion, bends in a U-shape and goes downward, and an output terminal portion that is the other end and is disposed outside the housing includes the first fold. The bent portion, the second bent portion, the third bent portion, and the output terminal portion are connected in this order, and the third bent portion is fitted into a terminal fixing recess formed facing the receiving recess. It is characterized by being combined.

  According to a third aspect of the present invention, in addition to the configuration of the first or second aspect, a part of the first bent portion protrudes into the cutout portion.

  According to the first aspect of the present invention, the notch is provided in a part of the upper wall of the terminal receiving recess that covers the terminal to be electrically contacted, so that the mating connector is fitted in an inclined state. In this case, the terminal of the mating connector to be fitted into the fitting recess and a part of the housing do not hit the upper wall of the receiving recess, and this causes a part of the upper wall to be deformed and chipped. It becomes possible to prevent a poor electrical contact with the mating connector due to the deformation of the terminal and the chip piece on the upper wall that is missing.

  According to the second aspect of the present invention, the first bent portion and the U-shape in which the contact portion that is brought into electrical contact with the mating connector is bent into a substantially U shape and protrudes into the fitting recess. A third bent portion, and the first bent portion and the third bent portion are formed to face each other, whereby the third bent portion is fixed to the housing, Electrically connected to the mating connector terminal attached to the mating convex portion of the mating connector and stably holding the mating convex portion of the mating connector inserted into the mating concave portion by the elastic force of the curved portion Since the connection is possible at the two locations of the contact portion of the first bent portion and the third bent portion, a stable electrical connection with the mating connector is possible.

  According to the invention of claim 3, the position of the contact portion in the first bent portion is provided further upward by projecting a part of the first bent portion into the cutout portion formed in the upper wall. This makes it possible to further increase the effective mating length with the mating convex portion of the mating connector, thereby enabling more reliable connection with the mating connector.

The perspective view of the connector concerning the present invention The disassembled perspective view of the connector which concerns on this invention (A) Perspective view of mating connector, (b) Cross section of mating connector Sectional drawing in the AA line of FIG. 1 when the connector which concerns on this invention is mounted in the printed wiring board Sectional drawing in the AA line of FIG. 1 at the time of fitting the other party connector to the connector which concerns on this invention Sectional drawing in the AA line of FIG. 1 at the time of a mating connector inclining and fitting with respect to the connector which concerns on this invention Cross-sectional view of a conventional connector

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 to 6 show an embodiment of the present invention. FIG. 1 is a perspective view of a connector according to the present invention, FIG. 2 is an exploded perspective view of the connector according to the present invention, and FIG. The perspective view (b) of the mating connector is a cross-sectional view of the mating connector, FIG. 4 is a cross-sectional view taken along the line AA of FIG. 1 when the connector according to the present invention is mounted on a printed wiring board, and FIG. FIG. 6 is a cross-sectional view taken along line AA of FIG. 1 when the mating connector is fitted to the connector according to the invention, and FIG. 6 is a diagram of FIG. 1 when the mating connector is tilted and fitted to the connector according to the present invention. FIG. 7 is a cross-sectional view taken along line AA, and FIG. 7 is a structural cross-sectional view of a conventional connector. The connector 01 includes the housing 10, the terminal 20, and the fixing bracket 30, and is mounted on one printed wiring board 70. The mating connector 02 that fits into the connector 01 includes the housing 40, the terminal 50, and the fixing bracket 60. It is mounted on the other printed wiring board 80.

  The connector 01 according to the present embodiment is mounted on one printed wiring board 70 as shown in FIG. 4, and is mated with the mating connector 02 mounted on the other printed wiring board 80 as shown in FIG. Thus, both the printed wiring boards 70 and 80 are electrically connected.

  The connector 01 is a socket connector in which the fitting recess 11 is formed, and the mating connector 02 is a plug connector in which the fitting protrusion 41 that fits in the fitting recess 11 of the connector 01 is formed. The connector 01 according to the embodiment, that is, the connector according to the present invention is a socket connector 01, and the mating connector 02 is a plug connector 02. The housing 10 constituting the socket connector 01 is the socket housing 10, the terminal 20 is the socket terminal 20, the fixing bracket 30 is the socket fixing bracket 30, the housing 40 constituting the plug connector 02 is the plug housing 40, and the terminal 50 is the plug terminal. 50, the fixing bracket 60 is the plug fixing bracket 60, the printed wiring board 70 on which the socket connector 01 is mounted is described as the socket substrate 70, and the printed wiring board 80 on which the plug connector 02 is mounted is described as the plug substrate 80. .

  In this description, the upper direction in FIG. 4 is the upper direction, the lower direction is the lower direction, the left and right direction is the left and right direction, and the upper surface perpendicular to the vertical direction in the socket housing 10 is placed on the socket top surface 18 and the socket substrate 70. The lower surface of the socket housing 10 will be described as a socket lower surface 19.

  The socket housing 10 is made of an insulating mold material, and a fitting recess 11 opened upward in a substantially rectangular outer shape is formed in a substantially mouth shape on the socket top surface 18 in a bilaterally symmetrical manner, and is defined by the fitting recess 11. A convex center convex portion 10a having a socket top surface height is formed on the inner side, and an outer peripheral convex portion 10b having a socket top surface height is formed on the partitioned outer side. A plurality of terminal receiving openings 13 penetrating to the socket lower surface 19 are formed in the fitting recess 11 along the longitudinal direction of the outer shape. A terminal receiving recess 12 is formed in the portion 10a. Further, a terminal fixing concave portion 14 is formed on the outer peripheral convex portion 10b facing the terminal accommodating concave portion 12 so as to be continuous with and laterally provided with the terminal accommodating opening 13 and the fitting concave portion 11. Here, the upper wall that covers the terminal receiving recess 12, that is, the socket top surface 18, is partially cut out by a notch 16 that is continuously cut out inward from the fitting recess 11, and the remaining portion. Forms an upper housing wall 15 that covers the terminal housing recess 12. Note that a plurality of these shapes are formed symmetrically on the left and right in the short direction, just as the fitting recesses 11 are formed symmetrically on the plane in a laterally symmetrical manner.

  The socket terminal 20 is an elongated thin plate made of a conductive metal, for example, having a thickness of about 0.06 mm, and a first bent portion 21 bent in a substantially U shape is formed in the vicinity of one end 28. A contact portion 21a that comes into contact with a plug terminal 50 of a plug connector 02, which will be described later, is provided in the vicinity of the first bent portion 21, and the first bent portion 21 is substantially continuous with the first bent portion 21. A second bent portion 23 bent in a substantially U shape in the reverse direction is formed, and a portion extending from one side of the second bent portion 23 passes under the first bent portion 21 and has a certain length. The third fold bent in a U-shape at 180 degrees after forming the fixed surface 25 in a state where the surface bent at an angle slightly smaller than 90 degrees through the extended portion 22 faces the first bent section 21. A bend is formed, and the other end is bent at an angle of approximately 90 degrees in the direction opposite to the fixed surface 25. It will form the output terminal 27. In addition, about the shape of the socket terminal 20, the further shape shall be demonstrated in the state integrated in the socket housing 10 mentioned later.

  The socket fixing bracket 30 is formed by bending a substantially elongated metal plate formed with convex portions protruding in the short direction at a plurality of locations in the longitudinal direction into a substantially U shape in the longitudinal direction. Convex portions provided symmetrically on the two ends of the two ends and the substantially U-shaped central beam form a hold-down portion 31 that is soldered and fixed to a circuit pattern disposed on the socket substrate 70 described later. And a substantially U-shaped central beam that protrudes in the opposite direction to the hold-down portion 31 and is bent inward in a U-shape to be fitted to the short-side wall of the outer peripheral convex portion 10 b of the socket housing 10. The fixed bent portion 32 is formed.

  And the socket connector 01 is completed by assembling as follows using the above components. First, a plurality of socket terminals 20 are inserted into the space formed by the fitting recess 11, the terminal receiving opening 13, the terminal receiving recess 12, and the terminal fixing recess 14 from the socket lower surface 19 of the socket housing 10. In the terminal fixing groove 141 formed in the longitudinal direction of the socket housing 10 along the side wall, a fixing convex portion 26 protruding left and right in the plate width direction on the output terminal portion side of the third bent portion 24 of the socket terminal 20 is provided. The socket terminal 20 is fixed to the socket housing 10 by press-fitting and fitting.

  In the socket terminal 20 fixed to the socket housing 10, the output terminal portion 27 protrudes to the outside at substantially the same height as the socket lower surface 19. The third bent portion 24 rising almost vertically from the output terminal portion 27 is accommodated in the terminal fixing recess 14, and the apex portion of the fixing surface 25 opposite to the output terminal portion 27 is obtuse at the fitting recess 11. The fixing convex part 29 formed in a certain mountain shape will face. The extending portion 22 that continues from the third bent portion 24 is arranged at a position slightly higher than the socket lower surface 19 in the terminal accommodating opening portion 13 and continues to the second bent portion 23. The second bent portion 23 is accommodated in the terminal accommodating recess 12 with the U-shaped top portion lying in the lateral direction of the socket housing 10, and the first folded portion formed continuously with the second bent portion 23. The curved portion 21 is arranged in a state where the top portion protrudes slightly obliquely upward into the fitting recess 11.

  Here, the upper wall of the terminal accommodating recess 12 that accommodates the first bent portion 21 and the second accommodating bent portion 23 has a length larger than the plate width of the socket terminal 20 and is continuous with the fitting recess 11. A notch 16 is formed in a concave shape in the direction, so that the upper part of the first bent part 21 and the second bent part 23 is not covered with the wall, and the The first bent portion 21 and the second bent portion 23 are exposed. Furthermore, the uppermost portion of the first bent portion 21 protrudes into the notch 16 at a height that does not exceed the socket plane 18.

  Further, the socket fixing metal fitting 30 is incorporated from above with respect to the outer peripheral convex portion 10b of the socket housing 10 in which the socket terminal 20 is incorporated. In the outer peripheral convex portion 10 b of the socket housing 10, there are formed a metal fixture fixing groove 142 formed from the upper side to the lower side at a constant equal interval from the center of the two sides of the short side and the center. The three fixing bent portions 32 are inserted into the metal fixture fixing groove 142 from one end, and the folding interval of the U-shaped portion of the fixing bent portion 32 is formed smaller than the outer wall of the metal fixing groove 142. The substantially U-shaped socket fixing bracket 30 is fixed to the two short sides of the socket housing 10 with the U-shaped portion sandwiching the outer wall, and the lowest position of the hold-down portion 31 is the bottom surface 19 of the socket. Also, the height is almost the same as the mounting surface of the output terminal portion 27 of the socket terminal 20.

  The completed socket connector 01 is placed on a socket substrate 70 which is a printed wiring board on which an electrical circuit pattern is printed on the lower surface 19 of the socket, and the output terminal portions 27 and the hold-down portions 31 are connected to the socket substrate 70. Soldered to the corresponding pattern and mounted.

  Next, the plug connector 02 fitted to the socket connector 01 will be described. In the description, the upper direction in FIG. 5 is the upper direction, the lower direction is the lower direction, the left and right direction is the left and right direction, and the lower surface perpendicular to the vertical direction of the plug housing 40 in FIG. The surface 43 and the upper surface placed on the plug substrate described later will be described as the plug lower surface 44.

  Similarly to the socket connector 01, the plug connector 02 includes a plug housing 40, a plug terminal 50, and a plug fixing bracket 60. The plug housing 40 has a substantially rectangular bottom plate portion 42 made of an insulating mold material and has a cross section along the outer periphery. Is formed with a substantially rectangular rib-shaped fitting convex portion 41, and the outer shape of the fitting convex portion 41 is the size of the fitting concave portion 11 so as to be fitted into the fitting concave portion 11 of the socket connector 01. It is formed slightly smaller than that. The plug terminal 50 is formed of an elongated thin plate made of a conductive metal, and is bent into a substantially square shape in the short-side cross section as shown in FIG. A plug output terminal portion 51 that is provided around one end and protrudes to the outside at substantially the same height as the plug lower surface 44, and a surface that is arranged on the fitting convex portion 41 in the vertical direction comes into contact with the socket terminal 20. A contact surface 52 is formed. A plurality of plug terminals 50 are attached to the plug housing 40, and are arranged corresponding to the positions of the socket terminals 20 of the socket connector 01 into which the plug terminals 50 are fitted.

  The plug fixing bracket 60 is formed by bending a metal plate into a substantially square shape, and a convex portion provided at the center of the plate width is a circuit pattern provided on a plug connector substrate 80 described later. A plug hold down portion 63 to be fixed by soldering is formed, and a fixing bent portion 64 formed at an angle of about 90 degrees with the plug hold down portion 63 and bent in a U shape is formed on the outer wall 49 of the plug housing 40. Will be fitted. The plug connector 02 is mounted on the plug substrate 80, which is a printed wiring board on which an electric circuit pattern is printed, with the plug output terminals 51 and the plug hold-down portions 63 corresponding to the plug substrate 80. Soldered to the pattern and mounted.

  Next, the fitting of the plug connector 02 to the socket connector 01 will be described. The plug connector 02 mounted on the plug substrate 80 is fitted to the socket connector 01 mounted on the socket substrate 70 from above. Here, in a normal state in which the socket top surface 18 and the plug top surface 43 are maintained in parallel from the position directly above the position where the fitting convex portion 41 of the plug connector 02 corresponds to the fitting concave portion 11 of the socket connector 01. When fitted, the fitting convex portion 41 is smoothly inserted into the fitting concave portion 11, and a contact portion 21 a protruding into the fitting concave portion 11 is provided around the fitting convex portion 41 as shown in FIG. 5. The socket connector 01 and the plug connector 02 are electrically connected to each other by contacting the plug terminal 50 and the fitting fixing convex portion 29 being fitted into the fixing concave portion 53 provided in the plug terminal 50. Is maintained.

  However, as shown in FIG. 6, the fitting convex portion 41 of the plug 02 is not directly above the fitting concave portion 11 of the socket connector 01, and / or the socket top surface 18 and the plug top surface 43 are The fitting projection 41 or the plug terminal 50 provided around the fitting projection 41 is fitted from the notch portion 16 of the socket housing 10 when the fitting projection 41 is fitted in an inclined state rather than in parallel. It hits the first bent part 21 and / or the second bent part 23 of the socket terminal 20 from above. Even in such a case, the socket terminal 20 can be elastically deformed by processing a thin plate made of a conductive metal. If the above-mentioned hit is solved by adjusting the fitting state to make 02 a normal fitting state, the first bent portion 21 and / or the second bent portion 23 are not damaged, Returning to the original shape, the fitting can be performed again in a normal state. However, when the first bent portion 21 and the second bent portion 23 are covered with the upper accommodating wall 15 without forming the notch portion 16, the fitting convex portion 41 or the fitting convex portion 41. The plug terminal 50 provided around the upper contact wall 15 hits the upper receiving wall 15, thereby permanently deforming the first bent portion 21 and / or the second bent portion 23, or a part of the upper receiving wall 15 is missing and its small piece. May interfere with electrical contact. That is, the socket connector 01 in which the notch 16 is formed has a great effect that such a problem cannot occur.

  In the fitting between the socket connector 01 and the plug connector 02, the fitting projection 41 is smoothly fitted into the fitting recess 11 by performing fitting again in a normal state thereafter, and the socket connector 01 and the plug connector 02 are plugged. The connector 02 is electrically connected and the mutual fitting is maintained. At this time, the following effects are further produced. Since the uppermost portion of the first bent portion 21 of the socket terminal 20 protrudes at a height that does not exceed the socket top surface 18 in the cutout portion 16, the contact portion provided in the first bent portion 21. The height of 211 is also positioned higher than the case where the first bent portion 21 and the second bent portion 23 are covered with the upper accommodating wall 15, and thereby closer to the base of the fitting convex portion 41. The contact portion 21a comes into contact, that is, it is possible to increase the fitting length in which the fitting convex portion 41 and the fitting concave portion 11 can be electrically contacted, whereby the socket connector 01 and the plug are plugged. Electrical connection with the connector 02 and more stable electrical connection between the socket substrate 70 on which both connectors are mounted and the plug substrate 80 are possible.

  As described above, the socket connector 01 has a notch 16 formed in the upper receiving wall 15 of the terminal receiving recess 12 so that the plug connector 02 is not in a normal fitting state but is in a tilted state, that is, in a so-called twisted fitting. Even so, a part of the plug connector 02 does not hit the thin upper housing wall 15 and hits the socket terminal 20 from the notch 16, and this causes a permanent elastic deformation of the socket terminal 20, but is permanent. Thus, the connector can be fitted and electrically connected without any problem without being damaged and without affecting the subsequent fitting of the socket connector 01 and the plug connector 02.

  In the present embodiment, the first bent portion 21 and the second bent portion 23 of the socket terminal 20 are formed in a substantially U shape, but the present invention is not limited to this, and the plug connector 02 is not limited to the cutout portion 16. What is necessary is just to be elastically deformed only temporarily when a part hits.

01 socket connector 10 socket housing 10a central convex portion 10b outer peripheral convex portion 11 fitting concave portion 12 terminal accommodating concave portion 13 terminal accommodating concave portion 14 terminal fixing concave portion 141 terminal fixing groove 142 bracket fixing groove 15 upper accommodating wall 16 notch portion 17
18 socket top surface 19 socket bottom surface 18 central convex portion 19 outer peripheral convex portion 20 socket terminal 21 first bent portion 211 contact portion 22 extending portion 23 second bent portion 24 third bent portion 25 fixing surface 26 fixing convex Portion 27 output terminal portion 28 one end 29 fitting fixing convex portion 30 socket fixing metal fitting 31 hold down portion 32 fixing bent portion 02 plug connector 40 plug housing 41 fitting convex portion 42 bottom plate portion 43 plug top surface 44 plug lower surface 47
48 Plug contact surface 49 Outer wall 50 Plug terminal 51 Plug output terminal portion 52 Plug contact surface 53 Fixing recess 60 Plug fixing bracket 61 Plug output terminal 62 Plug contact surface 63 Plug hold down portion 64 Fixing bent portion 100 Conventional connector ( Socket connector)
101 fitting recess 102 socket terminal 103 socket housing 104 receiving recess 105 one end 106 upper wall 200 mating connector (plug connector)
300 Printed wiring board 400 The other printed wiring board

Claims (3)

A fitting recess into which the mating connector is inserted from above, and a housing formed with a terminal receiving recess that is continuously provided in the fitting recess;
A plurality of conductive metal terminals having a first bent portion, part of which is accommodated in the terminal accommodating recess, one end of which is bent in a substantially U shape and protrudes into the fitting recess;
A connector consisting of
The connector is characterized in that a part of an upper wall that covers the terminal of the housing recess is cut out by a cutout portion. The terminal is
The first bent portion;
A second bent portion that bends in a substantially U shape in the receiving recess;
A third bent portion raised upward from the vicinity of the bottom surface of the fitting concave portion, bent in a U-shape and directed downward;
The output terminal portion disposed at the other end and outside the housing,
The first bent portion, the second bent portion, the third bent portion, and the output terminal portion are connected in this order,
The connector according to claim 1, wherein the third bent portion is fitted into a terminal fixing recess formed to face the receiving recess. The connector according to claim 1, wherein a part of the first bent portion protrudes from the cutout portion.

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