WO2015022863A1

WO2015022863A1 - Connector structure for substrate

Info

Publication number: WO2015022863A1
Application number: PCT/JP2014/070168
Authority: WO
Inventors: 真吾千葉; 陽榛地
Original assignee: 矢崎総業株式会社
Priority date: 2013-08-12
Filing date: 2014-07-31
Publication date: 2015-02-19
Also published as: JP6053640B2; JP2015037032A

Abstract

The connector structure for a substrate is provided with: a plurality of connector terminals (2) which each have a substrate connecting part (21) at one end and a component connecting part (22) at the other end, the substrate connecting parts (21) being immobilized by being pushed through connector holes (10a) of a circuit substrate (10); a connector housing (4) having a retaining wall (41) for retaining the connector terminals (2); and a connector terminal swing suppression member (6) positioned perpendicularly with respect to the retaining wall (41) and having through-holes(61) wherethrough the substrate connecting parts (21) are pushed. In each connector terminal (2), the substrate connecting part (21) is bent with respect to the component connecting part (22) without interfering with other connector terminals (2), at a bending angle (θ) of 90° or less and within a range extending from the retaining wall (41) to a hole surface (61c) on the distal side of the respective through-hole (61) with respect to the retaining wall (41). Each through-hole (61) of the connector terminal swing suppression member (6) is formed in such a way that a central axis position (C1) of a substrate connecting part (21) pushed through that through-hole (61) is positioned more toward the retaining wall (41) than a central axis position (C2) of a respective connector hole (10a).

Description

Board connector structure

The present invention relates to a board connector structure that is attached to a printed circuit board (PCB) included in various electronic devices to electrically connect electric cables such as flexible aggregate wiring.

Patent Document 1 discloses a conventional example of a horizontal type board connector structure in which a connector terminal press-fitted into a connector housing is bent at a right angle, and a tip of the connector terminal is inserted into a connection hole of a printed circuit board and soldered. It is shown.

In this conventional board connector structure, a predetermined plate member is attached to the connector terminal, and the tip of the connector terminal is inserted into each of a plurality of through holes formed in the plate member, so that the connector is shipped and a circuit is provided. Suppression of connector terminal deflection during soldering to the board is achieved.

JP 2000-217227 A (JP 2000-217227 A)

In the conventional board connector structure, it is necessary to make the through hole of the plate member as small as possible according to the size of the connector terminal in order to effectively suppress the fluctuation of the connector terminal. Considering this point, for example, if the hole diameter of the through hole is set to a dimension that is slightly larger than the outer diameter of the connector terminal, it will be difficult to insert the connector terminal into the through hole, and it will be difficult to insert it. If so, the connector terminal may be deformed. Therefore, in reality, the dimension of the through hole (hole diameter) of the plate member is set with a sufficient margin with respect to the size (outer diameter) of the connector terminal. It is difficult to suppress.

Also, if the bending accuracy of the connector terminal is poor, for example, the deflection dimension of the connector terminal may be out of tolerance. Therefore, it is necessary to ensure accuracy when bending the connector terminal, and it is necessary to adjust the equipment for performing the bending process with sufficient man-hours and to perform a strict inspection of the connector terminal during the processing.

As one of the countermeasures against such a problem, for example, if the plate member is thick, the effect of suppressing the deflection of the connector terminal can be enhanced. The amount used will increase, leading to an increase in component costs.

The present invention has been made based on this, and a problem to be solved is to provide a board connector structure capable of suppressing the deflection of the connector terminal while relaxing the bending accuracy of the connector terminal. There is.

In order to solve the above-described problems, a board connector structure according to an aspect of the present invention has a board connecting portion that is electrically connected to a circuit board provided with a plurality of connection holes on one end side, and a connected component and an electric circuit. And a connector housing having a holding wall for holding the connector terminal, and a holding member holding the connector terminal. A connector terminal wobbling suppression member is provided that is positioned in a direction perpendicular to the wall and has a plurality of through holes through which the board connecting portions are inserted. Each connector terminal has a dimension range from the hole surface on the back side to the holding wall with respect to the holding wall of the through hole, and a bending angle of 90 ° or less, and the board connecting portion is another connector terminal with respect to the component connecting portion. It is bent without interfering with. Each through hole is formed so that the center axis position of each substrate connection portion inserted through each through hole is positioned closer to the holding wall than the center axis position of the corresponding connection hole.

With such a configuration, the deflection width of the connector terminal can be made narrower than before. That is, from the deflection when the board connection portion comes into contact with the hole surface on the near side with respect to the holding wall of the through hole, the range of deflection when the board connection portion of the connector terminal comes into contact with the pair of openings in the through hole, respectively. The bending position and bending angle of the connector terminal can be easily adjusted so as to stop the deflection width of the connector terminal.

When each connector has a bent angle of the connector terminal smaller than 90 °, the substrate connecting portion is brought into contact with the pair of openings of each through hole to correct the position of the substrate connecting portion. , May be formed so as to give restraint. Thereby, in a state where the board connection portion of the connector terminal is inserted into the through hole, the tip of the board connection portion does not face the side opposite to the holding wall, and the tip may face the side opposite to the holding wall. Compared with a certain conventional connector structure, the fluctuation width of the board connecting portion of the connector terminal can be surely reduced.

According to the aspect of the present invention, it is possible to realize a board connector structure capable of suppressing the deflection of the connector terminal while relaxing the bending accuracy of the connector terminal.

FIG. 1 is a longitudinal sectional view showing a configuration of a board connector structure according to an embodiment. 2 (a) -2 (d) is an enlarged view of the inside of the one-dot chain line shown in FIG. 1, and FIG. 2 (a) is the back side with respect to the holding wall of the through hole of the connector terminal deflection suppressing member. The figure which shows the aspect which bent the connector terminal within the dimension range from this hole surface to this holding | maintenance wall, FIG.2 (b) is a bending angle of 90 degrees or less, and a board | substrate connection part is other connectors FIG. 2 (c) is a diagram showing a state of bending without interfering with the terminal, and FIG. 2 (c) shows the position of the central axis of the board connecting portion of the connector terminal bent at a bending angle θ of 90 ° and inserted through the through hole. FIG. 2D is a diagram showing the configuration of the through hole of the connector terminal deflection suppressing member formed so as to be positioned closer to the holding wall than the center axis position of the connection hole of the board, and FIG. 2D is a diagram showing the deflection width of the connector terminal.

Hereinafter, the board connector structure according to the embodiment will be described with reference to the drawings. The board connector structure according to the embodiment is a structure that is attached to a printed circuit board (PCB) included in various electronic devices to electrically connect components to be connected.

As shown in FIGS. 1 and 2, the board connector structure according to the embodiment includes a plurality of connector terminals 2, a connector housing 4, and a connector terminal runout restraining member 6. Each connector terminal 2 includes a board connecting portion 21 that is electrically connected to the circuit board 10 on one end side (hereinafter referred to as a board side), and a part that is electrically connected to a connected part (not shown). The connecting portion 22 is provided on the other end side (hereinafter referred to as the component side). The board connecting portion 21 is inserted and fixed in the connecting hole 10a of the circuit board 10. The connector housing 4 includes a holding wall 41 that holds the connector terminal 2. The connector terminal deflection suppressing member 6 includes a through hole 61 that is positioned in the vertical direction with respect to the holding wall 41 and through which the board connecting portion 21 is inserted. The connected component is not particularly limited as long as it is a component having a connection interface that can be electrically connected to the component connecting portion 22 of the connector terminal 2. For example, a wire cable such as a flexible aggregated wiring can be assumed.

Here, the vertical direction in FIGS. 1 and 2 corresponds to the rising direction of the holding wall 41, and the horizontal direction corresponds to the vertical direction to the rising direction of the holding wall 41. In the following description, the right side in the left-right direction is referred to as the board side (one end side of the connector terminal 2), and the left side is referred to as the component side (the other end side of the connector terminal 2). However, these vertical and horizontal directions do not necessarily coincide with the respective directions in the state where the connector terminal 2 is electrically connected to the circuit board 10 and the connected component.

In FIG. 1, a set of five connector terminals 2 (first connector terminal 2a, second connector terminal 2b, third connector terminal 2c, fourth connector terminal 2d, and fifth connector terminal 2e) made of a conductive material. The structure of the connector terminal 2 in which the terminal row to be arranged is shown as an example. A plurality of terminal rows of the connector terminals 2 are arranged in parallel to constitute a terminal group of the board connector. Note that the number of connector terminals 2 included in one board connector is not particularly limited, and can be arbitrarily set. In this case, a plurality (for example, the same number as the connector terminals 2) of connection holes 10a are formed in the circuit board 10. Each connector terminal 2 is arranged according to the arrangement of these connection holes 10a. In addition, it is assumed that the connector terminal 2 is formed in a so-called pin shape, but the cross-sectional shape in the direction intersecting the central axis is arbitrary, and can be, for example, circular, elliptical, rectangular, or the like. is there. The connector terminal 2 is fixed by soldering or the like after the board connection portion 21 is inserted into the connection hole 10a of the circuit board 10, and is electrically connected to the circuit board 10 through the connection hole 10a.

The connector housing 4 is made of an insulating resin or the like, and is formed in a cylindrical shape having a space in which the connector terminal 2 is disposed. The holding wall 41 is provided in the connector housing 4 so as to separate the arrangement space of the connector terminal 2 into two parts, that is, the board side and the component side. In FIG. 1, the connector housing 4 has the component connecting portion 22 of the connector terminal 2 positioned and fixed by the holding wall 41, and the board connecting portion 21 and the tip of the component connecting portion 22 are positioned on both sides of the holding wall 41. Thus, the connector terminal 2 is held in the cylinder. In this case, the connector housing 4 may be integrated with the connector terminal 2 by insert molding. Also, holding holes that penetrate the holding wall 41 are formed in the cylinder axis direction (left and right direction in FIG. 1) of the connector housing 4, and the connector terminal 2 is press-fitted into these holding holes from the component side (or board side). Thus, the connector terminal 2 can be held and integrated.

The connector terminal run-out suppressing member (hereinafter referred to as a tine plate) 6 is a member formed by drilling a through hole 61 in a plate material having a predetermined thickness, and is a connector terminal 2 integrated with the connector housing 4. Attached to the (board connection part 21) suppresses the shake of the connector terminal 2 (especially the board connection part 21) at the time of shipment or attachment to the circuit board 10. As the tine plate 6 is thicker, the effect of suppressing the shake of the connector terminal 2 can be enhanced. What is necessary is just to set it to the thickness large enough compared with the magnitude | size (outer diameter) of the terminal 2. FIG.

The same number of through holes 61 as the connector terminals 2 are formed in the tine plate 6. The through hole 61 penetrates the tine plate 6 along the vertical direction with a constant hole diameter, and has

openings

61a and 61b at both ends in the vertical direction. The tine plate 6 is attached to the connector housing 4 so as to be perpendicular to the holding wall 41 in a state where the board connecting portion 21 of the connector terminal 2 is inserted into the through hole 61. The method for attaching the tine plate 6 to the connector housing 4 is not particularly limited. For example, an attachment portion (press-fit protrusion, engagement piece, etc.) is provided on one of the connector housing 4 and the tine plate 6 and the attached portion ( For example, a press-fitting hole or an engagement groove may be provided.

The connector terminal 2 is within the dimension range from the hole surface 61c on the back side to the holding wall 41 with respect to the holding wall 41 of the through hole 61 (within the dimension range indicated by L in FIG. The variation angle indicated by θ in (a) and 2 (b)) is 90 ° or less, and the board connection portion 21 is bent with respect to the component connection portion 22 without interfering with other connector terminals 2. Specifically, as shown in FIGS. 2 (a) and 2 (b), the connector terminal 2 has the board-side position 23 of the bent portion within the range of the dimension L, and the extension direction of the component connecting portion 22 The board connecting portion 21 is bent downward (toward the circuit board 10) at a bending angle θ of 90 ° or less. 2 (a) and 2 (b) show an example of the bending state of the first connector terminal 2a, but other connector terminals 2 (for example, the second connector terminal 2b to the fifth connector terminal 2e) are bent similarly. It is bent according to the conditions (the bending position is within the range of the dimension L and the bending angle is within the range of 90 ° or less). At this time, all the connector terminals 2 do not have to be in the same bending manner as long as they do not interfere with other connector terminals 2, and may be in any bending manner as long as the above bending conditions are satisfied.

In the embodiment shown in FIG. 2A, the board-side position 23 of the bent portion is the maximum position of the dimension L (the position farthest from the holding wall 41) and the bending angle θ is 90 ° with respect to the component connection portion 22. Thus, the board connecting portion 21 is bent, and the first connector terminal 2 a is in contact with the hole surface 61 c of the through hole 61. Further, in the embodiment shown in FIG. 2B, the board-side position 23 of the bent portion is a position slightly smaller than the dimension L and the bending angle θ is slightly smaller than 90 ° with respect to the component connection portion 22. Then, the board connecting portion 21 is bent, and the first connector terminal 2a is in contact with the pair of

openings

61a and 61b of the through hole 61, respectively.

The through hole 61 of the tine plate 6 has a center axis position of the board connecting portion 21 of the connector terminal 2 inserted through the through hole 61 (axis position indicated by C1 in FIG. 2C), and a center axis position of the connection hole 10a. It is formed so as to be positioned closer to the holding wall 41 than the axis position indicated by C2 in FIG. In the state shown in FIG. 2 (c), the connector terminal 2 is bent at a bending angle θ of 90 °, and the through hole 61 is kept in a state where a gap is formed without contacting the board connecting portion 21 of the connector terminal 2. The hole diameter is set.

Thereby, the deflection width of the connector terminal 2 can be made narrower than before. That is, as shown in FIG. 2 (d), the connector terminal 2 has a deflection width W within a range from the bending mode S2 indicated by the thin solid line to the bending mode S3 indicated by the dotted line, based on the bending mode S1 indicated by the solid line. Swing is suppressed. The bending mode S1 indicated by the solid line in FIG. 2D is the same as the bending mode shown in FIG. 2C, and the bending mode S2 indicated by the thin solid line in FIG. 2D is shown in FIG. This is the same as the bending mode. 2 (d), the bending mode S3 shown in FIG. 2 (d) is that the board-side position 23 of the bent part is bent between the bending mode S1 and the bending mode S2 and the bending angle θ is 90 °, and the connector terminal 2 is connected to the board. The part 21 comes into contact with the front hole surface 61 d with respect to the holding wall 41 of the through hole 61.

Further, in the embodiment, when the bending angle θ of the connector terminal 2 is smaller than 90 °, the through hole 61 brings the board connecting portion 21 into contact with the pair of

openings

61a and 61b of the through hole 61, respectively. The terminal 2 is formed so as to be restrained while correcting the position of the board connection portion 21 of the terminal 2 (position relative to the connection hole 10a of the circuit board 10). Thereby, in the state which inserted the board | substrate connection part 21 of the connector terminal 2 in the through-hole 61, the front-end | tip of the board | substrate connection part 21 does not face the opposite side to the holding wall 41 (state shown in FIG.2 (b)). As compared with the conventional connector structure in which the tip may face the side opposite to the holding wall 41, the fluctuation width of the board connecting portion 21 of the connector terminal 2 is reliably reduced (that is, within the range of the fluctuation width W). be able to.

As described above, according to the board connector structure according to the embodiment, it is possible to suppress the deflection of the connector terminal 2 while relaxing the bending accuracy of the connector terminal 2. Thereby, the tolerance of the bending position and bending angle of the connector terminal 2 is alleviated, in other words, if the tine plate 6 is attached to the connector terminal 2 (the board connection portion 21 is inserted into the through hole 61), the connector terminal 2 Can be kept within tolerance. Therefore, for example, even if the adjustment of equipment for bending the connector terminal 2 and the simplification of the dimensional inspection of the connector terminal 2 at the time of processing are attempted, it is possible to easily and reliably suppress the deflection of the connector terminal 2. It becomes possible to plan. In addition, the board connection portion 21 of the connector terminal 2 can be smoothly inserted into the connection hole 10 a of the circuit board 10.

As mentioned above, although this invention was demonstrated based on embodiment, embodiment mentioned above is only an illustration of this invention and this invention is not limited only to the structure of embodiment mentioned above. Therefore, it is obvious to those skilled in the art that the present invention can be implemented in a form modified or changed within the scope of the gist of the present invention. It goes without saying that it belongs to the claims.

ADVANTAGE OF THE INVENTION According to this invention, the connector structure for substrates which can aim at suppression of the deflection | deviation of a connector terminal is realizable, relaxing the bending precision of a connector terminal.

Claims

A board connector structure,
A board connecting portion electrically connected to a circuit board provided with a plurality of connection holes is provided on one end side, and a component connecting portion electrically connected to a connected component is provided on the other end side. A plurality of connector terminals fixed by being inserted into each of the connection holes;
A connector housing having a holding wall for holding the connector terminal;
A connector terminal shake restraining member positioned in a direction perpendicular to the holding wall and having a plurality of through-holes through which the board connection portion is inserted;
Each of the connector terminals has a dimension range from a hole surface on the back side to the holding wall of the through hole to the holding wall, and has a bending angle of 90 ° or less, and the board with respect to the component connecting portion. The connecting part is bent without interfering with other connector terminals,
Each of the through holes is formed so that the center axis position of each of the board connection portions inserted through the respective through holes is positioned closer to the holding wall than the center axis position of the corresponding connection hole. A board connector structure characterized by that.
The board connector structure according to claim 1,
When each of the through holes has a bending angle of the corresponding connector terminal smaller than 90 °, the substrate connection portion is brought into contact with a pair of openings of the through holes, respectively. A connector structure for a board, which is formed so as to restrain a position while correcting the position.