JPH04366575A - Surface mounting type connector - Google Patents

Abstract

PURPOSE:To ensure the certain connection with a pattern electrode on a printed board without strictly suppressing the dimensional precision of a connecting terminal part and improve productivity in a surface mounting type connector to be installed to the end side of the printed board. CONSTITUTION:Connecting terminals 2b, 3b situated on the tongue piece tips lined up of a plurality of plug terminals planted along the longitudinal direction of an insulator 12 are opposed to and brought into contact with a pattern electrode 5a on a printed board 5 installed onto a side wall formed along the longitudinal direction on the cross directional one side of the insulator 12, and then the connecting terminals 2b, 3b are connected to the pattern electrode 5a and mounted on the printed board 5. In such a surface mounting type connector, a bracket 14 is provided before installing to the printed board 5, and formed in such a manner that each lined connecting terminal 2b, 3b is pressed from the reverse side and displaced at once on the printed board side when the bracket 14 is installed to the insulating body 12.

Description

[Detailed description of the invention]

0001

[Industrial Application Field] The present invention relates to the construction of a surface mount type connector that is attached to the edge of a printed circuit board, and in particular, the present invention relates to the structure of a surface mount type connector that is attached to the edge of a printed circuit board, and in particular, the connection terminal portion can be connected reliably with the pattern electrode on the printed circuit board without strictly restricting the dimensional accuracy of the connecting terminal portion. This invention relates to a surface mount connector that improves productivity by ensuring reliable connections.

0002

2. Description of the Related Art FIG. 2 is a diagram illustrating an example of the main part configuration of a conventional surface-mount connector and a method for mounting and mounting it on a printed circuit board. (2-1) is a diagram showing the state before mounting, 2
-2) is a cross-sectional view of the state after mounting.

[0003] The figure shows an example in which a plug connector is mounted on a printed circuit board. (2-
1) The surface-mounted plug connector (hereinafter simply referred to as a plug) 1 has two types of plug contacts 2a and 3a at one end and curved tongue-shaped connection terminals 2b and 3b at the other end. The plug terminals 2 and 3 are implanted in the plug insulator 4 in two rows in a staggered manner at the straight portions near the areas of the respective plug contacts 2a and 3a, and in this state, the above two types plug terminal 2,
The vertices of the curved portions of the connection terminals 2b and 3b of No. 3 are arranged in a line.

[0004]The connection terminals 2b and 3 of the insulator 4
A side wall 4b protruding from the implantation surface 4a of the plug terminals 2 and 3 is formed on the side facing b, and a connection pattern electrode 5a forming surface is exposed at a predetermined position on the inner surface 4b' of the side wall 4b. When the printed circuit board 5 is fixed, for example, by means of screws, the connection terminals 2b, 3b come into contact with the corresponding pattern electrodes 5a of the printed circuit board 5 with a preset contact pressure. There are (2
-2) shows the state at this time.

[0005] Therefore, the printed circuit board 5 in the contact state
Each pattern electrode 5a and the corresponding connection terminal 2 of the plug 1
The plug 1 can be easily mounted on the printed circuit board 5 by connecting between the terminals b and 3b by a conventional means such as soldering.

However, in the plug 1 having such a structure, since the connection terminals 2b and 3b form free ends, they are prone to bending and deformation, and in order to avoid proximity and contact between adjacent connection terminals, it is necessary to It is necessary to strictly control dimensional accuracy.

In particular, as the density of terminals in connectors increases and the pitch P between adjacent connection terminals becomes narrower, the dimensional accuracy of the plug terminals themselves must be more strictly controlled.

[0008] Therefore, measures have been taken such as spending a lot of man-hours to form plug terminals with excellent dimensional accuracy and reducing the length L of the tongue pieces on the connecting terminals 2b and 3b side to ensure dimensional accuracy. In the current situation.

[0009]

[Problem to be Solved by the Invention] With conventional plugs, there is a problem in that productivity cannot be expected to improve because it takes a lot of man-hours to form plug terminals with excellent dimensional accuracy. Yes, and connection terminals 2b and 3b
When ensuring dimensional accuracy by reducing the length of the side tongues, there is a problem in that the scope of application is restricted because it cannot be mounted on a printed circuit board that requires a long tongue.

0010

[Means for Solving the Problems] The above-mentioned problem is to solve the problem of aligning the printed circuit board mounted on the side wall that is formed to protrude along the longitudinal direction on one side in the width direction of the insulator constituting the plug connector or jack connector. Connecting terminals formed at the tips of the aligned tongues of a plurality of plug terminals or jack terminals implanted along the longitudinal direction of the insulator are brought into contact with the plurality of pattern electrodes while facing each other. A surface mount type connector that connects a corresponding pattern electrode and a connection terminal and mounts it on the printed circuit board, wherein the surface mount type connector before being mounted on the printed circuit board is configured with a bracket, and the bracket includes: means capable of individually positioning each of the connecting terminals aligned when mounted at a predetermined position on the insulator by pressing from the back side in the vicinity thereof; and means capable of collectively displacing the respective connecting terminals toward the printed circuit board side. This is achieved by means of a surface mount connector formed and configured to have a means.

[0011]

[Operation] By configuring the plug so that the connecting terminal portion of each plug terminal can be positioned and held at a preset position, proximity and contact between adjacent connecting terminals can be avoided, and contact with the connecting electrode 5a of the printed circuit board can be avoided. The pressure can be easily adjusted to the required value.

[0012] In the present invention, a plug is constructed by attaching a bracket for positioning and holding the connecting terminal portion to a plug insulator. This means that bending or deformation of the connecting terminal as a plug terminal is corrected by the bracket.

[0013] Therefore, it is possible to easily realize a plug that can be reliably connected to a corresponding connection electrode of a printed circuit board without using a plug terminal with particularly high dimensional accuracy.

[0014]

[Example] Figure 1 is a diagram showing an example of the configuration of the main parts of a surface-mounted connector according to the present invention, (1-1) is an overall configuration diagram, and (1-2) is a diagram showing the state when installed on a board. It is a diagram shown in cross section.

For ease of understanding, the figure uses a plug connector as an example, similar to FIG. 2, and the same members as in FIG. 2 are denoted by the same symbols. (1-1) in Figure 1
In the surface-mounted plug connector (hereinafter simply referred to as a plug) 11, the two types of plug terminals 2 and 3 explained in FIG. A plug connector main body (hereinafter referred to as the plug main body) 13, which is configured by being implanted in two rows in a staggered manner similar to FIG. 2, and the insulator 12 are formed along the width direction at corresponding positions on both longitudinal end surfaces The bracket 14 is made of a resin molded product and can be attached to the insulator 12 by inserting the square groove 12b provided therein as a guide.

In particular, the bracket 14 in this case includes two guide poles 14a having a thickness that fits into the two square grooves 12b of the insulator 12 and located at respective positions corresponding to the square grooves 12b. , the plug terminals 2 and 3 when each guide pole 14a is fitted into the square groove 12b.
In a direction that connects each connecting terminal 2b, 3b to a position corresponding to the vicinity of each connecting terminal 2b, 3b, and
, 3b and a connecting terminal holding plate 14b arranged with a length that covers the existing area are connected by a plate-shaped arm 14c connected to both ends of the holding plate 14b.
It is in the shape of a "U".

Furthermore, the surface of the connecting terminal holding plate 14b on the protruding side of the guide pole 14a is connected to each connecting terminal 2b, 3b.
A comb-shaped recessed groove 14b' is formed at a position corresponding to the position of the connecting terminal 2b, 3b on the back side thereof.

The area of the arm 14c is such that the guide pole 14a is connected to the corresponding square groove 12b of the insulator 12.
When the bracket 14 is attached to the insulator 12 by inserting it into the
The connecting terminal holding plate 14b is bent in a direction that hangs down toward the comb blade forming surface side as shown by arrow A in the figure as necessary so that the connecting terminal holding plate 14b is pressed down while the vicinity of the comb blade is positioned and displaced downward in the drawing. .

Therefore, by setting the amount of curvature in the arm 14c portion according to the thickness of the printed circuit board on which it is mounted, the distance between the tip of each connection terminal 2b, 3b and the inner surface of the side wall 12a' can be adjusted to the thickness of the printed circuit board. It can be made smaller than that.

(1-2) shows the state at this time, and in the figure, the distance d from the inner surface of the side wall 12a' of the tips of the connecting terminals 2b, (3b) is the distance d from the printed circuit board 5 explained in FIG. Thickness t including pattern electrode 5a for connection of
"d-t" in this case is set smaller than
corresponds to the amount of displacement in the connection terminals 2b, 3b, or in other words, the contact pressure of the connection terminals 2b, 3b with respect to the pattern electrode 5a.

Then, by inserting the printed circuit board 5 as shown by the arrow B and fixing the two using means such as screws (not shown), the connecting terminals 2b, (3b) can be applied to the pattern electrodes 5a of the circuit board 5 with the required contact pressure. can be brought into contact.

Thereafter, the connector 11 can be mounted on the printed circuit board 5 by performing normal soldering work, as explained in FIG. 2. In the connector having such a configuration, each of the connection terminals 2b and 3b is connected to the connection terminal holding plate 14b.
Since soldering is performed while positioned in the concave groove 14b', this can be done without using plug terminals with particularly high dimensional accuracy and without reducing the length of the tongue pieces on the connecting terminals 2b and 3b side. A connector that can ensure reliable connection with the pattern electrode 5a can be easily realized.

[0023]

[Effects of the Invention] As described above, the present invention provides a surface-mounted connector that improves productivity by ensuring reliable connection with pattern electrodes on a printed circuit board without strictly restricting the dimensional accuracy of the connecting terminal portion. can be provided.

[0024] In the explanation of the present invention, since the connection terminals of two types of plug terminals are arranged in a line, the explanation is made using a bracket with one connection terminal holding plate, but the connection terminal portion For example, when connectors are arranged in two staggered rows, the same effect can be achieved by using a bracket with two connection terminal holding plates formed in parallel at positions corresponding to each row. Obtainable.

Furthermore, it is clear that the same effect can be obtained even when the surface mount type plug connector according to the present invention is a surface mount type jack connector in which only the plug contact portion is replaced with a jack contact.

[Brief explanation of drawings]

FIG. 1 is a diagram showing an example of the configuration of main parts of a surface-mounted connector according to the present invention.

FIG. 2 is a diagram illustrating an example of the main part configuration of a conventional surface mount connector and a method for attaching and mounting it to a printed circuit board.

[Explanation of symbols] 2, 3 Plug terminal
2b, 3b Connection terminal 5 Printed circuit board
5a Pattern electrode 11 Surface-mounted plug connector 12 Plug insulator 12
a side wall 12a' inner surface
12b Square groove 13 Plug connector body 14 Bracket
14a Guide pole 14b Connection terminal holding plate
14b' Concave groove 14c Arm

Claims (1)

[Claims] 1. Alignment on a printed circuit board (5) attached to a side wall (12a) that is formed to protrude along the longitudinal direction of one side in the width direction of an insulator (12) constituting a plug connector or jack connector. Connection terminals (2b, 3b) formed at the tips of aligned tongues of a plurality of plug terminals or jack terminals implanted along the longitudinal direction of the insulator (12) are connected to the plurality of patterned electrodes (5a).
) is a surface mount type connector that is mounted on the printed circuit board (5) by connecting the corresponding pattern electrodes (5a) and the connecting terminals (2b, 3b) after pressing and contacting them with the printed circuit boards (5) facing each other. The surface mount type connector before being mounted on the substrate (5) is configured with a bracket (14), and when the bracket (14) is attached to a predetermined position (12b) of the insulator (12), A means (14b') capable of individually positioning the aligned connecting terminals (2b, 3b) from the back side near them and displacing the connecting terminals (2b, 3b) all at once to the printed circuit board side. A surface mount type connector characterized in that it is formed and configured so as to have a means (14c) for attaching the connector.