JPH021026Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a connector, and particularly to a right-angle type microribbon connector.

Conventional technology In general, a right-angle type microribbon connector has a plurality of elongated plate-shaped contact members bent at approximately right angles in the connector body, and the signal terminal portion at the tip of the contact member is bent from the bottom of the connector body. This is a configuration in which they are arranged in a prominent manner.

Conventionally, this type of connector has a structure in which the connector main body is formed of two members, the main body and the cover, and the contact members are fixed by the cover. After that, in order to reduce manufacturing costs,
A device was developed in which the main body and cover were integrated and the connector main body was made into one component. In this connector, the contact members are simply inserted into through holes or comb-shaped grooves that are aligned and formed in the connector body, and the base portion of the signal terminal portion is inserted into the through-holes or comb-shaped grooves. engaged.

Problems to be Solved by the Invention In a structure in which the contact member is inserted through a through hole, the position of the signal terminal part is restricted by the through hole in the direction in which it is aligned and in the direction perpendicular to this. The direction is not restricted and it is in a state where it can be easily displaced when pushed. In addition, in the structure where the contact member is fitted into the groove, the position of the signal terminal part is regulated by the groove wall in the direction in which it is aligned, but it is not regulated in the direction perpendicular to this and in the vertical direction, and is pushed. It is in a state where it can be easily displaced. For this reason, the signal terminals are likely to become misaligned due to shocks and external forces received when handling the connector, and when the connector is mounted on a printed circuit board, the signal terminals may become misaligned, which may impede mounting. .

The object of the present invention is to provide a connector that solves the above problems.

Means for Solving the Problems The present invention provides a convex stepped portion on the lower surface of each tooth of the comb tooth portion of the connector body, and a bulge portion that bulges laterally at the base portion of the signal terminal portion of the contact member. The bulge is provided and the bulging portion is engaged with the lower surface of the tooth portion and the convex step portion, thereby restricting displacement of the signal terminal portion in the vertical direction and in the direction toward the entrance of the groove of the comb tooth portion.

Embodiment Next, an embodiment of the connector of the present invention will be described.

Figures 1 A to C and Figure 2 show a right angle type micro ribbon connector 1 according to the present invention.
shows. This connector 1 generally includes a connector body 2 made of resin, and a plurality of first
contact member 3 and second contact member 4
It becomes more. First and second contact members 3, 4
The contact portions 3a and 4a are aligned above and below the plug insertion portion 2a of the connector body 2, respectively, and
With the signal terminal parts 3b and 4b protruding downward from the bottom plate part 2b of the connector main body 2 and aligned in two rows,
It is bent into an approximately L-shape and incorporated. Especially the first one,
signal terminal portions 3b of second contact members 3, 4;
The base portions 3c and 4c of 4b are locked in the state shown in FIGS. 3A and 3B. This will be discussed later.
Further, reference numerals 5a and 5b are fasteners, which clamp the plug (not shown) in a state where it is connected to the connector 1. In this connector 1, a bottom plate part 2b is placed and fixed on a printed circuit board (not shown), and signal terminal parts 3b and 4b are inserted into corresponding holes in the printed circuit board (not shown). It is soldered.

As shown in FIG. 4, the connector body 2 has a plug insertion portion 2a and a plug insertion portion 2a on the front side.
It has a bottom plate part 2b extending rearward from the lower side of the bottom plate part 2b.
A comb tooth portion 2c is formed on the bottom plate portion 2b. As shown in FIGS. 5A and 5B, the comb tooth portion 2c is
A plurality of teeth 2 extending in the back direction of the connector body 2
d, and a groove 2e which is formed between adjacent teeth 2d and has an entrance 2e- ₁ on the back side of the connector main body 2.

As shown in FIGS. 5A and 5B, the tooth 2d has a narrow tooth portion 2f on the tip side and convex step portions 2g and 2h on the lower surface. The tooth portion 2f is a concave stepped portion 2 on both sides of the tooth 2d.
It is formed relatively by i and 2j,
The tip has a tapered portion 2f- ₁ . recessed step 2i,
2j has horizontal surface portions 2i- ₁ , 2j- ₁ and deep vertical surface portions 2i- ₂ , 2j- _2, respectively. Convex stepped portion 2g
is formed at a position corresponding to the deep part 2e- ₂ of the groove 2e, and consists of a deep vertical surface 2g- ₁ and an inclined surface 2g- ₂ that slopes upward toward the tip of the tooth 2d. Another convex step portion 2h is the vertical surface portion 2i- ₂ ,
2j- ₂ , and consists of a rear vertical surface 2h- ₁ and an inclined surface 2h- ₂ that slopes upward toward the tip of the tooth 2d. This convex step 2
The height dimension _H1 of h is the height dimension _H2 of the vertical surface portion 2i- ₂
It is set smaller.

As shown in FIGS. 6A and 6B, the first contact member 3 is an elongated plate-shaped body having the same width as the groove 2e, and has a downwardly convex contact portion 3a on one end side and a contact portion 3a on the other end side. Signal terminal portion 3b, base portion 3c of signal terminal portion 3b
It has a pair of bulges 3d and 3e. Swelling part 3
d and 3e are spaced apart by a dimension H _{3 a which is somewhat larger than the dimension H 3} (see Fig. 5), which is the sum of the height of the stepped portion of the tooth 2d and the height of the convex stepped portion _2h ; They bulge out on the left and right sides respectively.

As shown in FIGS. 7A and 7B, the second contact member 4 is an elongated plate-shaped body having the same width as the groove 2e, and has a contact portion 4a convex upward on one end side and a contact portion 4a on the other end side. Signal terminal portion 4b, base portion 4c of signal terminal portion 4b
It has a pair of bulges 4d and 4e. Swelling part 4
d and 4e are spaced apart from each other by a dimension H _{4 a} , which is slightly larger than the dimension H ₄ (see Figure 5), which is the height of the tooth 2d plus the height of the convex step 2g, and are spaced apart from each other on the left and right sides, respectively. It is bulging out.

In the initial state, the first and second contact members 3 and 4 are formed by stamping integrally with the band-shaped connecting portions 6 and 7, respectively, and are aligned at the same pitch when assembled into the connector 1. ing. As a result, the first and second contact members 3 and 4 are assembled into the connector main body 2 from the back side instead of one by one, so that the work of assembling the contact members can be carried out efficiently. After assembly, cutting lines 8, 9
The contact members 3 and 4 are individually separated. Further, the first and second contact members 3 and 4 are initially bent to a state that does not reach the bent state shown in FIG. 1C.

Next, the state in which the base portions 3c and 4c of the first and second contact members 3 and 4 are locked to the comb tooth portion 2c will be explained with particular reference to FIGS. 2 and 3A and 3B.

The base portion 4c of the second contact member 4 is held in the deep portion 2e- ₂ of the groove 2e, with the bulging portion 4e being engaged with the convex step portion 2g. Here, the second contact member 4 is assembled in an elastically bent manner, and an elastic restoring force in the direction of arrow A is generated in the base portion 4c. In the base portion 4c, the bulging portion 4d is pressed against the vertical surface 2g- ₁ of the convex step portion 2g and the lower surface of the tooth 2d due to the elastic restoring force, so that the base portion 4c moves in the directions of arrows X ₁ and X ₂ and in the directions of arrows Z ₁ and Z _{2 .} The position of the direction is elastically regulated. As a result, the signal terminal portion 4b is connected to the bottom plate portion 2.
They are arranged linearly with a constant protrusion dimension from b.

Note that even when the signal terminal portion 4b is pushed in the direction _{of arrow} in a state. Further, the second contact member 4 is located below the first contact member 3 and is hardly pushed from the outside, but even if the arrow Z ₂
Even when the signal terminal portion 3b is pushed in the direction indicated by the arrow Z, the displacement of the signal terminal portion 3b toward the tooth 2d causes the bulge portion 4e to move toward the tooth 2d.
It is locked and restricted by the upper surface of.

The base portion 3c of the first contact member 3 is held at an intermediate position in the groove 2e, with the bulging portion 3e being locked by the convex step portion 2h. Here, the first contact member 3 is also elastically bent and assembled, and an elastic restoring force in the direction of arrow B is generated in the base portion 3c. In the base portion 3c, the bulging portion 3d is pressed against the vertical surface 2h- ₁ of the convex step portion 2h and the lower surface of the tooth 2d due to elastic restoring force, and the position in the arrow X ₁ direction and the arrow Z ₁ direction is elastically fixed. is regulated. As a result, the signal terminal portions 3b are linearly aligned with a constant protrusion dimension from the bottom plate portion 2b.

Note that the bulging portion 3e is the concave stepped portion 2 of the adjacent tooth 2d.
i, 2j, and the vertical surface portions 2i- ₂ , 2
It faces j− ₂ . Therefore, the signal terminal section 3
When b is pushed in the direction of arrow X ₂ , the bulge 3
e is locked to the vertical surface portions 2i- ₂ and 2j- ₂ , and the signal terminal portion 3b is restricted from displacement in the same direction. Also, when the first contact member 3 is pressed in the direction of the arrow Z ₂ , the displacement of the signal terminal portion 3 b in the direction of the arrow Z ₂ causes the bulging portion 3 e to move toward the concave stepped portions 2 i and 2 j of the adjacent teeth 2 d. When the pressing force is released, the signal terminal portion _3b is displaced in the direction of arrow _Z1 and returns to _its original position.

Therefore, the signal terminal portions 3b and 4b of the first and second contact members 3 and 4 are both shaped like arrows by the groove 2e.
Displacement in the Y ₁ and Y ₂ directions is restricted, and displacement in the arrow X ₁ , X ₂ , Z ₁ , and Z ₂ directions is restricted as described above, and the alignment state is maintained at a predetermined position. As a result, even if the connector 1 is subjected to impact or external force during handling, the signal terminal portions 3b, 4b
are not misaligned but are kept aligned, and the connector 1 can be mounted on the printed circuit board without any problem.

Note that when incorporating the first and second contact members 3 and 4 into the connector main body 2, the base portions 3c,
4c is inserted into the groove 2e from the entrance 2e- ₁ side.
The inlet 2e- ₁ has a tapered shape with a wider width on the inlet side, and the tip of the toothed part 2f is connected to the tapered part 2f.
- ₁ , so the base portions 3c and 4c are groove 2.
Enter smoothly into e. Swelling portion 4 of base portion 4c
d is guided by the slope 2g- ₂ and climbs over the convex step 2g, and the bulge 3d of the base portion 3c crosses the slope 2h.
- Guided by ₂ , climb over the convex step 2h. Therefore, the base portions 3c, 4c can be locked in a predetermined position by simply moving the signal terminal portions 3b, 4b to the depths of the groove 2e, and the connector 1 itself has excellent assembly performance.

Effects of the Invention As described above, the connector of the present invention has a plug insertion part on the front side into which a plug is inserted, a main body having a comb-shaped part cut into the bottom plate from the back side, a contact part at one end, and other parts. It is an elongated plate-like body having a signal terminal part at the end, and the contact part faces the plug insertion part,
A connector comprising a plurality of contact members assembled into the main body in a bent state in which a base portion of the signal terminal portion is fitted into a groove of the comb tooth portion and protrudes downward from the bottom plate portion. The base portion of the signal terminal portion of the member is provided with a bulge portion that bulges out laterally above and below the teeth of the comb tooth portion in order to restrict free displacement of the signal terminal portion in the vertical direction. Since the connector is provided with a convex step portion that locks the bulge portion on the lower surface of the tooth and restricts the displacement of the signal terminal portion in the direction of the entrance of the groove, for example, the connector may be damaged during transportation. Even if the contact member is pushed due to rough handling, the signal terminal part will not be misaligned, and even when the connector is mounted on the printed circuit board, the signal terminal part can be moved horizontally and vertically. It has the advantage that it can be maintained in an aligned state in both directions and can be mounted without any problems.

[Brief explanation of drawings]

1A, B, and C are respectively a plan view, a front view, and a side view of an embodiment of the connector according to the present invention, and FIG. 2 is an enlarged view showing a state in which the contact member is assembled into the connector body. Figure 1A is a sectional view taken along the middle line, and Figures 3A and 3B are enlarged views of the state in which the base portion of the contact member is engaged with the comb teeth of the contact body, viewed from above and below, respectively. 4 is a partially cross-sectional plan view of the connector body; FIGS. 5A and 5B are perspective views viewed from above and below, showing enlarged shapes of the teeth of the comb tooth portion of the contact body; FIG. 6; 7A and 7B are a partially cutaway plan view and a front view of the first contact member, respectively, and FIGS. 7A and 7B are a partially cutaway plan view and a front view of the second contact member, respectively. DESCRIPTION OF SYMBOLS 1... Micro ribbon connector, 2... Connector body, 2a... Plug insertion part, 2b... Bottom plate part, 2c... Comb tooth part, 2d... Teeth, 2e... Groove,
2g, 2h...Convex step, 2g- ₁ , 2h- ₁ ...Vertical surface, 2g- ₂ , 2h- ₂ ...Slanted surface, 2i, 2j
……Concave stepped portion, 2i- ₁ , 2j- ₁ ……Horizontal surface portion, 2
i- ₂ , 2j- ₂ ... Vertical surface portion, 3 ... First contact member, 4 ... Second contact member, 3
a, 4a...Contact part, 3b, 4b...Signal terminal part, 3c, 4c...Base part, 3d, 3e, 4
d, 4e...bulge.

Claims (1)

[Scope of utility model registration request] It is an elongated plate-like body that has a plug insertion part on the front side into which the plug is inserted, a main body with a comb-shaped part cut into the bottom plate from the back side, a contact part on one end, and a signal terminal part on the other end. , the contact portion faces the plug insertion portion, the base portion of the signal terminal portion is fitted into the groove of the comb tooth portion, and is assembled into the main body in a bent state so as to protrude downward from the bottom plate portion. In a connector consisting of a plurality of contact members, a base portion of the signal terminal portion of the contact member is provided with upper and lower sides of the teeth of the comb tooth portion to restrict free displacement of the signal terminal portion in the vertical direction. A bulging portion is provided that bulges out laterally to prevent the signal terminal portion from moving toward the entrance of the groove. A connector with a configuration of