JP2007305531A - Connector for wiring board - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a wiring board so made to prevent a soldered part from generating large stress even if a terminal is greatly deformed, and capable of absorbing dimensional errors and displacement. <P>SOLUTION: In the connector for a wiring board provided with a movable housing 3 equipped with a box-like connector 7 housing a connector and a terminal of a counterpart wiring board, a fixed housing 1 mounting the movable housing 3 in free displacement, a wiring board 2 fixed to the fixed housing 1, and a terminal 6 soldered to the wiring board 2, positioned inside the fixed housing 1 and mechanically jointed to the connector 7 in the movable housing 3, the terminal 6 soldered to the wiring board 2 is formed in a plate shape, with a zigzag-shaped elastic deformation part 60 formed as seen from a front and a rear faces of the terminal 6. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a wiring board connector.

  As a conventional wiring board connector, a plurality of post receiving connectors are provided on one wiring board, a plurality of connectors having posts are provided on the other wiring board, and both connectors are connected by fitting the posts to the post receiving. Thus, there is known one in which both wiring boards are joined electrically and mechanically.

  In the above-mentioned conventional example, if the mounting positions of both connectors are not accurate and there is an error, the positions of the posts and the positions of the holes for inserting the posts do not match, making it difficult to connect the two connectors. Inconvenience that it was not possible to join them.

  A device has been developed that absorbs dimensional errors between a plurality of connectors and prevents the connectors used from becoming tall so that they do not become tall and cause problems in mounting. For example, as shown in FIG. 8 to FIG. 10, a frame-shaped outer shell 12 that houses a housing 11 in which a plurality of insertion holes 10 for inserting posts 14 are formed in two horizontal rows so as to be movable in both directions. And a metal fitting 13 for preventing the housing 11 from floating and fixing the outer shell body 12 to the printed circuit board. Each insertion hole 10 of the housing 11 is an independent square hole and contacts each insertion hole 10. 15 contact spring pieces 15a are inserted upward from the lower surface side of the housing 11, and when the post 14 is inserted from the upper surface opening of the insertion hole 10, the contact spring pieces 15a are parallel to the inner wall surface direction. It is known that the post 14 is elastically contacted and electrically connected. The contact 15 is formed by bending a metal spring material, and the contact spring piece 15a is press-fitted into the insertion hole 10 by pressing the protrusions 15e provided on both sides of the lower end of the contact spring piece 15a against the inner wall of the insertion hole 10. Further, the extension piece extended outward from the lower end of the contact spring piece 15a is further bent in an inverted U shape so as to be parallel to the outer wall surface of the housing 11, thereby forming an inverted U-shaped spring piece 15b. The lower end portion of the outer side of the inverted U-shaped spring piece 15b is press-fitted and fixed in a groove 16 provided in correspondence with each contact 15 at the lower part of the inner side walls of the outer shell 12. At this time, the protrusions 15 c projecting on both sides of the lower end portion of the outer side of the inverted U-shaped spring piece 15 b are pressed against the inner wall surfaces on both sides of the groove 16.

  Further, the contact 15 described above further extends the lower end of the outer side of the inverted U-shaped spring piece 15b outwardly, and the extension piece constitutes a terminal 13d for fixed connection to the printed circuit board pattern by reflow soldering. ing. The metal fittings 13 provided on the outer surfaces of both ends of the outer shell body 12 are fixed to the printed circuit board by reflow soldering by fixing pieces 13a provided at the lower ends of both side legs, and the outer shell body 12 penetrates the outer shell body 12 from the central piece. The projecting piece projecting into the body 12 is positioned above the projecting portion projecting from the lower part of the outer surface of each end of the housing 11 to restrict the upward movement of the housing 11.

The conventional connector configured as described above is mounted on the printed circuit board by soldering the terminals 15d of the contacts 15 and the fixing pieces 13a of the metal fitting 13 to the printed circuit board pattern by reflow soldering. If there is an error in the connector mounting pitch when the connector post 14 provided on another printed circuit board is joined, the housing 11 is moved to the side while the inverted U-shaped spring piece 15b of the contact 15 is bent. Thus, the error is absorbed, and the position of the post 14 and the position of the insertion hole 10 of the housing 11 are matched to enable smooth insertion joining (see Patent Document 1).
JP-A-6-163125 (page 3, FIG. 1)

  In the conventional example described in Patent Document 1, the housing 11 moves to the left and right by elastically deforming the inverted U-shaped spring piece 15b to absorb errors between the substrates. When assembled, the contact 15 is likely to be deformed, and a large stress may be applied to the terminal 15d (solder portion) of the contact 15.

  Therefore, the present invention prevents a large stress from being directly generated in the solder portion even if the contact (terminal) is greatly deformed, and the dimensional error of both connectors provided on both wiring boards and the position between the boards even with a simple configuration. An object of the present invention is to provide a wiring board connector capable of absorbing the deviation.

  In order to achieve the above-described object, the present invention provides a movable housing provided with a box-shaped connector that accommodates a connector and a terminal of a counterpart wiring board, a fixed housing in which the movable housing is movably attached, and the fixed housing. A wiring board connector comprising: a wiring board fixed to the wiring board; and a terminal soldered to the wiring board and positioned in the fixed housing and mechanically joined to the connector in the movable housing. A soldered terminal is formed in a plate shape, and a zigzag elastic deformation portion is formed when viewed from the front and back surfaces of the terminal.

  The present invention includes a movable housing in which a box-shaped connector that accommodates a connector and a terminal of a counterpart wiring board is disposed, a fixed housing in which the movable housing is movably attached, a wiring board fixed to the fixed housing, In a wiring board connector provided with a terminal soldered to the wiring board and mechanically joined to the connector in the movable housing and located in the fixed housing, the terminal soldered to the wiring board is plate-shaped. Since the zigzag elastic deformation portion is formed as viewed from the front and back surfaces of the terminal, even if the terminal is greatly deformed, that is, each U-shaped and inverted U-shaped portion is bent, the substrate There is no large stress directly on the fixed part. Therefore, there is no possibility that the solder of the terminal is peeled off. Moreover, although it is the simple structure as mentioned above, the position shift of a wiring board can be absorbed.

  Embodiments of the present invention will be described below with reference to the drawings.

  1 and 2, a fixed housing 1 corresponding to a conventional outer shell 12 is fixed to a wiring board 2, and a movable housing 3 is attached to the fixed housing 1 so as to be displaceable. 1 and 2 show the joining of a junction box (electrical connection box) and an electronic unit provided in a harness assembled to an automobile interior panel.

  The movable housing 3 is attached to the fixed housing 1 by engaging the engagement pieces 4 provided at both ends of the movable housing 3 in the movable direction with the engagement portions 5 of the fixed housing 1 shown in FIG. In addition, the terminals 6 are soldered and fixed to the wiring board 2, and these terminals 6 are disposed from the fixed housing 1 to the movable housing 3.

  The plurality of terminals 6 soldered to the wiring board 2 are mechanically joined (or integrally molded) with a box-shaped connector 7 located in the movable housing 3 as shown in FIGS. 4 and 5. An unillustrated counterpart terminal and connector are electrically and mechanically connected to the connector 7. The terminal 6 is formed by punching a plate-shaped metal spring material (preferably MSP1). A base 6e is provided. The zigzag portion from the joint portion 6a to the bent portion 6b becomes an elastically deformable portion 60 that can be deformed in the front and back direction of the plate-like terminal 6, that is, in the movable direction of the movable housing 3. If there is a dimensional error at the joint position between the other connector (not shown) connected to the connector 7 and the terminal, the elastic deformation portion 60 of the terminal 6 is elastically deformed in the front and back direction in FIG. be able to.

  6 and 7 are cross-sectional views showing the arrangement state of the terminal 6 and the box-shaped connector 7 shown in FIGS. 4 and 5 in the movable housing 3, and the fixing portion 6d is fixed to the fixed housing 1. The terminal 6 and the connector 7 above the fixed portion 6d are embedded in the movable housing 3, and the mating connector and terminal are inserted into the upper end opening of the connector 7 to achieve electrical connection. At this time, even if the positions of the counterpart and the connector 7 are shifted, the elastically deforming portion 60 of the terminal 6 is also deformed, and the movable housing 3 is movable to enable connection. As apparent from FIG. 6, since the terminal 6 is positioned on an extension line of a partition wall (not indicated) separating the plurality of connectors 6 in the movable housing 3, the movable housing 3 can be downsized. .

The front view which shows suitable embodiment of this invention. Side view. The detailed sectional view of the attaching part to the fixed housing of the movable housing. The front view of a connector and a terminal. The side view of a connector and a terminal. FIG. Front sectional view. Sectional drawing which shows a prior art example. The perspective view of a prior art example. The perspective view of a contact.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed housing 2 Wiring board 3 Movable housing 6 Terminal 7 Connector 60 Elastic deformation part

Claims (2)

A movable housing provided with a box-shaped connector that accommodates a connector and a terminal of a counterpart wiring board, a fixed housing in which the movable housing is displaceably mounted, a wiring board fixed to the fixed housing, and a wiring board In a wiring board connector provided with terminals soldered and located in a fixed housing and mechanically joined to a connector in the movable housing,
A connector for a wiring board, wherein the terminals soldered to the wiring board are formed in a plate shape, and a zigzag elastic deformation portion is formed when viewed from the front and back surfaces of the terminal.   The wiring board connector according to claim 1, wherein a terminal is disposed on an extension line of a partition wall that separates a plurality of connectors disposed in the movable housing.

Images