JPS633098Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to improvements in connectors, particularly connectors that accommodate LC terminals.

Conventionally, as a connector for an LC terminal, for example, a connector as shown in a vertical cross-sectional view in FIG. 1 is known. That is, this connector A' is connected to housing a
A flexible arm b for temporarily fixing the terminal is provided in the middle part, and a protrusion c' formed on the bottom surface of the covered wire crimping part c of the terminal T' is connected to a protrusion d provided at the tip of the flexible arm b.
After temporarily fixing the terminal T' in the housing a by engaging the terminal T', insert the spacer e into the housing a from the rear of the terminal T', and tighten the insulated wire crimping part c of the terminal T'.
The rear end of the terminal T' is pressed to prevent the terminal T' from coming off backward.

However, in the case of such a conventional connector A', it is necessary to provide a spacer f for bending the flexible arm b for connecting and disconnecting the terminal, and a space g for inserting and removing the spacer e, in the housing a. , as the thickness of the housing itself increases, so does its weight, especially the terminal covered wire crimping part c and the spacer e.
The thickness of the storage space g is thicker than the thickness of other housing parts, and the housing surface is formed in two stages, so that the outer shape is not too small.

Furthermore, since the flexible arm b is bent, the temporary fixing portion is disengaged, and the terminal fitted into the housing is easily pulled out.

In view of these shortcomings of conventional LC terminal connectors, this invention aims to make the connector smaller and lighter by effectively utilizing the space inside the housing, while also ensuring that the terminals are locked into the housing. The purpose of this design is to provide a connector that can

The present invention will be described below with reference to the accompanying drawings showing embodiments.

FIG. 2 shows a perspective view of the connector of the present invention, FIG. 2a shows a perspective view of a connector main body of the present invention, and FIG. 2b shows a perspective view of a spacer forming a part of the present invention. Further, FIG. 3a shows a front view of the connector of the present invention, and FIG. 3b shows a sectional view taken along the line E--E of FIG. 3a.

In the figure, the connector of this invention is connector body A.
and spacer B.

As shown in FIGS. 2a and 3b, the connector main body A has a plurality of terminal accommodating chambers 2 arranged above and below in a housing 1 in a staggered manner in which the upper and lower rows are alternately arranged. A groove 3 is provided in the center of the bottom wall of the terminal accommodating chamber 2 in the axial direction of the housing 1, that is, in the same direction as the longitudinal direction of the terminal accommodating chamber 2, and further,
The grooves 3 of the upper and lower terminal receiving chambers 2 are alternately bored in the middle wall 4 of the housing 1, and these grooves 3 are arranged in a line in the middle wall 4.

Next, the upper and lower edges of the housing 1 are extended to the terminal insertion side of the housing 1 (the left side of the housing 1 in FIG. 2a or 3a), and the engaging portions 6 are provided on both sides of the extended portions. A spacer lock 5 is formed. Further, each of the engaging portions 6 has a locking hole 7 into which a locking piece 14 protruding from a locking portion 12 of a spacer B, which will be described later, is fitted.

Moreover, the housing 1 is attached to the upper and lower edges of the housing 1.
A notch 8 is formed in the axial direction of the housing 1, and a locking protrusion 9 is provided in the upper and lower walls of the housing 1 at the position of the notch 8 to project into the terminal accommodating chamber 2 within the length thereof. Further, the upper surface of the locking projection 9 is tapered toward the end surface of the housing.

Next, as shown in FIG.
1 are provided alternately protruding upward and downward, and locking members 12 are formed at both ends of the base 10, and are fitted and locked into the spacer lock portion 5 of the connector main body A.

In this fitted and locked state, the base 10 of the spacer B closes the end face of the groove 3 of the terminal accommodating chamber 2 in correspondence with the intermediate wall 4 of the housing 1, and the upright pieces 11 are connected to the upper and lower terminal accommodating chambers 2, respectively. It is provided protrudingly at a position corresponding to the side wall 13 between them. Further, a protrusion 14 is formed on the outer surface of each of the locking members 12 to be fitted into the locking hole 7 provided in the locking piece 6 of the spacer lock portion 5 of the connector body A described above.

Next, the operation of the connector of the present invention having the above configuration will be described.

The LC terminal T used in the connector of the present invention consists of a wire connection part 15 and an electrical contact part 16, and a locking protrusion 17 is provided at the bottom of the wire connection part 15, and a locking protrusion 17 is provided above it for tightening the wire insulation coating. A vertically extending projecting piece 18 is formed at the rear. The LC terminal T having such a configuration is housed in the terminal housing chamber 2 from the electrical contact portion 16 side with its projecting piece 18 accommodated in the groove 3 of the housing terminal housing chamber 2 . In this case, terminal T
The locking protrusion 17 passes over the tapered portion 9' of the locking protrusion 9 facing into the terminal accommodating chamber 2, and is temporarily fixed by being locked by the locking stepped portion. At this time, since the locking protrusion 9 is bent outward through the notch 8, this temporary locking is easily performed. Next, insert the spacer B into the spacer lock part 5 of the connector body A as shown by the arrow in FIG. Locking of the terminal to the connector of the present invention is completed by fitting the terminal into the locking hole 7 provided in the connector 6.

Due to this lock, the side surface of the base 10 of the spacer B comes into contact with the intermediate wall 4 of the housing 1, closing the end surfaces of the grooves 3 of the terminal accommodating chambers 2 arranged in a line on the intermediate wall 4, thereby preventing the terminals T from coming off backwards. do. On the other hand, the temporary locking portion of the terminal between the locking projection 17 of the terminal T and the locking projection 9 provided on the upper and lower walls of the housing is securely engaged by fitting into the spacer lock portion 5 of the spacer B. is retained.

Conversely, when removing the terminal T from the connector, remove the spacer B from the spacer lock part 5 of the housing 1, and insert the spacer lock part 5 into the upper and lower walls of the housing 1 as shown by the broken line and arrow in FIG. 2a. By bending the extending portion outward through the notch 8, the aforementioned terminal temporary fixing portion can be disengaged and easily removed from the connector body.

As described above in detail, according to the connector of the present invention, the terminals housed in the upper and lower terminal accommodation chambers of the housing can be prevented from coming off backward by the intermediate wall of the housing.
The terminals are temporarily locked at the locking protrusions 9 provided at the notches 8 in the upper and lower walls of the housing.
It is now possible to omit the flexible arm and its installation space, which were conventionally required for temporary locking of terminals, and the connector of the present invention is approximately half the size, especially the thickness, of conventional connectors. In addition, there are no steps formed on the outer surface of the connector, giving it a clean appearance.Furthermore, since the flexible arm is eliminated, the weight can be significantly reduced. Further, since the temporary locking of the terminal in the housing 1 is performed at the locking protrusions 9 provided at the positions of the notches 8 in the upper and lower walls of the housing as described above, The mating does not easily disengage, and together with the backward restraint by the base 10 of the spacer B of the terminal projecting piece 18 housed in the groove 3 of the terminal accommodating chamber 2, the terminal T is held in the connector. The effect of securely locking and fixing can be obtained.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view of a conventional LC terminal connector.
Figure 2a is a perspective view of the connector body of the present invention;
Figure b is a perspective view of a spacer forming a part of the present invention, Figure 3a is a front view of the connector of the present invention, Figure 3
Figure b shows a sectional view taken along the line E--E of Figure 3a. 1... Housing, 2... Terminal housing chamber, 3...
Groove, 4... Intermediate wall, 5... Spacer lock portion, 8
...notch, 9 ... locking protrusion, 10 ... base, 1
DESCRIPTION OF SYMBOLS 1... Standing piece, 15... Electric wire connection part, 16... Electric contact part, 17... Locking protrusion, 18... Protruding piece part.

Claims (1)

[Scope of utility model registration request] A plurality of terminal accommodating chambers each having a groove provided in the center of the bottom wall are arranged in a staggered manner above and below the housing, and the grooves of the terminal accommodating chambers are arranged in a line in the middle wall of the housing, and the terminals of the housing are arranged in a staggered manner. The upper and lower edges of the housing are extended on the insertion side to form a spacer lock portion with engaging portions on both sides, and the upper and lower edges of the housing are provided with a notch in the axial direction of the housing and a terminal housing. A housing is provided with a protrusion facing the chamber, and upright pieces corresponding to the side walls of the terminal accommodating chamber are provided above and below the base corresponding to the intermediate wall of the housing, and at both ends of the base, engagement pieces on both sides of the spacer lock portion are provided. 1. A connector comprising a spacer formed with a locking member corresponding to a mating portion.