JPH04121690U - surf ace mount connector - Google Patents

Abstract

(57) [Summary] [Structure] The slider is mounted in the triangular space created by the two rows of leads protruding from the back side of the housing, the back side of the housing, and the sloped parts of the two rows of leads, and is inserted into the jig hole in the housing. It has a protrusion that can be inserted, and by inserting a round jig into the jig hole from the front side of the housing, the slider moves toward the lead side and pushes the leads apart. [Effect] Since the leads can be removed without prying them, the printed circuit board can be easily attached to the connector without requiring a great deal of force and without damaging the terminals in multi-pole connectors. Cream solder printed on the pad is no longer pushed away, eliminating soldering defects.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention is implemented on electronic circuit boards installed in electronic equipment, electronic computers, etc. This is related to surface mount connectors (hereinafter referred to as SMT connectors). Ru.

0002

[Conventional technology]

Conventionally, this type of SMT connector has a main connector 1 as shown in FIGS. 6 and 7. The terminals 2 protruding from the body and arranged in two rows take into consideration the shape and dimensions of the printed circuit board 6. Connector 1 is pre-formed, so it is difficult to print connector 1. When installing it on the printed circuit board 6, pry the space between the terminals 2 using the tip of the printed circuit board 6. Slide the printed circuit board 6 until the terminal 2 is located on the pad 7 on the printed circuit board 6. The method was to push the tip between terminals 2.

0003

[Problem that the idea aims to solve]

In the conventional SMT connector described above, the terminals protruding from the connector body are When installing the printed circuit board, the tip of the printed circuit board may pry it open, and the terminals may be Because it moves relatively while contacting the printed circuit board surface, it has the following disadvantages. Ta.

0004 (1) By prying the terminals on the printed circuit board, many types of connectors can be It requires a large amount of force, has poor attachment to the printed circuit board, and may damage the terminals. there were.

[0005] (2) Since the terminal moves relatively while contacting the printed circuit board surface, the pad The cream solder printed on top is pushed away, resulting in poor soldering during soldering. Ta.

[0006]

[Means to solve the problem]

The SMT connector structure of this invention is arranged in two rows on the housing and the back of the housing. a plurality of leads provided therein, each inclined inwardly; and a plurality of leads on the back surface of the housing. The protrusions located inside the two rows of leads automatically slide into the jig holes provided in the housing. A jig is inserted into the jig hole from the front side of the housing. When the slider is inserted, the projections of the slider are pushed by the jig and move, and the two rows of sliders are moved. The feature is that the distance between the tips of the cords is widened.

[0007]

【Example】

Next, the present invention will be explained with reference to the drawings.

[0008] FIG. 1 is a front view of a connector 10 according to an embodiment of the present invention, and FIG. 2 is a view taken along arrow A-A in FIG. , FIG. 3 is a sectional view taken along line BB in FIG.

[0009] 1 to 3, the connector 10 includes a housing 11, a slider 12, and a housing. Leads 1 protrude from the back side of the ring 11 and have inclined portions arranged in two rows and inclined inward. It consists of contacts (not shown) with 3. Housing 11 A plurality of contact holes 15 are provided on the front side of the A contact is inserted inside, and a lead 13 protrudes from the back side. Housing 1 A slider 12 is fitted into a groove provided on the back surface of the slider 1.

0010 Further, jig insertion holes 15 are provided at both ends of the housing 11, and the jig insertion holes 15 are provided at both ends of the housing 11. 15 is a stepped hole with a diameter smaller at the inner part than at the surface side. vinegar The rider 12 has a U-shaped cross section with a groove on the outside, and both ends of the inside surface. A cylindrical projection 16 provided in the jig insertion hole 14 is inserted into the small hole portion of the jig insertion hole 14. Sly The outer ridge lines on both sides of the lead 12 are in contact with the lead slopes of the lead 13. follow Therefore, the slider 12 will not come off from the housing 11 due to the lead 13. stomach.

[0011] Next, the attachment of the printed circuit board 30 to the connector 10 will be explained with reference to FIG. Installation order The order is as shown in FIGS. 5(a), (b), (c), and (d). The printed circuit board 30 has a front It has a pad 31 on the back.

0012 FIG. 5A shows a stage before the printed circuit board 30 is inserted between the leads 13.

[0013] FIG. 5(b) shows a state in which the interval dimension L of the leads 13 is expanded as the insertion begins. ing. In order to widen the interval L of the leads 13, the tips shown in FIG. Insert a stepped cylindrical lead insertion jig 20 with a smaller diameter than the lead insertion jig 20 into the jig insertion hole 14 in Fig. 3. The lead 13 side of the slider 12 from the housing 11 is The amount of protrusion increases. This allows the slider in contact with the sloped part of the lead 13 to The leads 13 are pushed out by the protrusion of the lead 12, and the lead spacing dimension L becomes larger. Ru. The small diameter and large diameter stepped portions of the jig 20 hit the c section shown in FIG. The operation of increasing the lead interval dimension L is completed.

[0014] FIG. 5(c) shows the printed circuit board 3 in a state where the lead spacing dimension L in FIG. 5(b) has expanded. 0 is inserted between the leads 13 of the connector 10.

[0015] FIG. 5(d) shows a state in which the jig 20 is removed from the state in FIG. 5(c), The spring force of the lead 13 returns the slider 12 to its original position, and the lead spacing is adjusted. The end L is sandwiched, and the mounting of the printed circuit board 30 is completed.

[0016]

[Effect of the idea]

As explained above, the present invention moves the slider using a jig to push and expand the lead. After increasing the lead spacing dimension L and attaching the printed circuit board to the connector, the spring force of the leads by returning the slider to its original position and narrowing the lead spacing. This has the following effects.

[0017] (1) The connector can be attached to the printed circuit board without prying the leads. Can be attached to multi-pole connectors without requiring a lot of force and without damaging the terminals. can be easily done.

[0018] (2) The connector can be mounted without contacting the printed circuit board surface, so it can be mounted on the pad. Printed cream solder is no longer pushed away, eliminating soldering defects. .

[Brief explanation of the drawing]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a view taken along the line A-A in FIG. 1;

FIG. 3 is a sectional view taken along line BB in FIG. 1;

4 is a diagram showing a jig 20 used in the embodiment shown in FIGS. 1 to 3. FIG.

FIG. 5 is a diagram showing the mounting order of the printed circuit board and connector of the embodiment shown in FIGS. 1 to 3;

FIG. 6 is a sectional view showing a state of a conventional SMT connector before a printed circuit board 6 is attached.

FIG. 7 is a sectional view showing a state in which a printed circuit board 6 of a conventional SMT connector is attached.

[Explanation of symbols]

1 connector 2 terminal 6 Printed circuit board 7 Pad 10 Connector 11 Housing 12 Slider 13 Lead 14 Jig insertion hole 15 Contact hole 16 Round protrusion 20 Jig 30 Printed circuit board 31 Pad

Claims (2)

[Scope of utility model registration request] [Claim 1] A housing; a plurality of leads arranged in two rows on the back surface of the housing, each inclined inward;
a slider located inside the two rows of leads on the back surface of the housing and having a protrusion slidably fitted into a jig hole provided in the housing; A surface mount connector characterized in that when a tool is inserted, the projections of the slider are pushed by the jig and move to widen the distance between the tips of the two rows of leads. [Claim 2] The jig hole is a stepped hole that is thick on the front side of the housing and narrow on the back side, and the stepped part of the jig is shaped like a stepped bar and is thin at the tip and thick at the other parts. 2. The surface mount connector according to claim 1, wherein when the jig is inserted into the jig hole until they abut, the width of the gap between the tips of the two rows of leads is completed.