JPS5812386Y2 - Branch connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in multi-pole electrical connectors.

Conventionally, single-branch connectors have been used to branch off from the main line.

In this conventional branch connector, a large number of clip terminals are arranged in two rows on a wiring board inside the case and are used as a terminal row for incoming construction wiring and a terminal row for exiting construction wiring, and both sides of the outside of the case are used. A receptacle connector is disposed in the receptacle, and the wrapping post of the clip terminal and the solder terminal of the receptacle connector are properly connected in advance by wrapping and soldering with a back wiring wire material.

Such a conventional branch connector has a receptacle connector provided separately from a clip terminal as a construction connection terminal, and has a large number of parts and is correspondingly large.

In view of these points, an object of the present invention is to provide a small branch connector with a small number of parts.

Next, the present invention will be described in detail with regard to embodiments of the present invention based on FIGS. 1 to 6 of the accompanying drawings.

FIG. 1 is a perspective view of an exploded arrangement of parts in a connected state of a branching connector as an embodiment of the present invention.

This branching connector includes a base portion 20, two connectors 40 (only one is shown in the figure), and a cover 60.
It consists of

The base portion 20 is. For example, plastic case 21
and a printed circuit board 2 disposed at the bottom of the case 21.
2 (see Figures 3 and 5) and a printed circuit board 2.
2, for example, two terminal array blocks 23 made of plastic, an inlet cable 11 and an outlet cable 12.
and a clamp 30 for fixing it to the case 21.

Mounting protrusions 21A are formed on both sides of the bottom of the case 21, and these protrusions 21A are provided with holes 21B for inserting mounting screws.

One side of the case 21 further includes a notch 21C for passing the inlet and outlet cables 11 and 12, and a notch 21C on both sides of the notch 21C for passing the branching cable 13 connected to the connector 40. A notch 21D is provided.

A column 21E is provided for mounting the clamp upright from the inner bottom adjacent to the notch 21C of the case 21, and both ends of the clamp 300 are fixed to the column 21E with setscrews 30A and placed inside the notch 21C. The inlet and outlet cables 11 and 12 can be tightened.

Each terminal arrangement block 23 is formed with an elongated recess 24 that is connected to the connector 40 , and one side of the recess 24 is connected to the circuit conductor of the printed circuit board 220 and is connected to the connector 40 .
Terminals 25 contacted by the contactors are arranged at equal intervals.

On the other side of the recess 24, terminals 26 connected to the circuit conductors of the printed circuit board 220, contacted by the contacts of the connector 40, and having construction termination ends are arranged at equal intervals.

In this embodiment, in order to increase the arrangement density of the terminals, the terminals 26 are arranged such that their construction connection ends are staggered.

A protruding wall 27 is formed on the side of the terminal array block 23 on which the terminals 26 are arranged, and on the top of this protruding wall 27, inlet and outlet cable thin wires are arranged at a pitch equal to the arrangement pinch of the terminals 26. A groove 27A for arranging and fixing 14 is provided.

An elongated space 28 is created between the two terminal arrangement blocks 230 disposed on the printed circuit board 22 for introducing and accommodating bundles of thin wires 140 of the input and output cables.

The connector 40 includes a housing 42 made of, for example, plastic and having a protrusion 41, and has contacts arranged at equal intervals on both sides of the protrusion 410 so as to expose contact parts 43.

A one-branch cable 13 is inserted and fixed into the connector 40, and each thin wire of the branch cable 13 is appropriately connected to each corresponding contact inside the nozzle 42.

When the protruding portions 41 of these connectors 40 are inserted and coupled into the elongated recesses 24 of the terminal arrangement block 23 of the base portion 20, the contact portions 43 of each contact of the connector 40 are inserted into the recesses 24, respectively.
This makes electrical contact with the contact portions of the terminals 25 and 26 arranged on both side walls.

The cover 60 may be formed of the same plastic material as the case 21, and has a notch 61C formed on one side and notches 61D on both sides thereof.

The notch 61C together with the notch 21C of the case 21 creates an opening for passing the inlet and outlet cables 11.12 when the cover 60 is assembled with the case 21;
The notch 61D is formed when the cover 60 is combined with the case 21.

Together with the notch 21D of the case 21, an opening is created through which the branch cable 13 is passed.

Inside the cover 60, as will be explained in detail later, there is a thin cable wire 1 connected to the construction connection end of the terminal 26.
A holding piece 62 for holding down 4 is provided.

A slender groove 62A is formed on the bottom surface of the holding piece 62 for receiving the construction connection end of the terminal 26.

Figure 2A is a front view showing the branch connectors shown in Figure 1 in a combined state, and Figure 2B is a right side view of Figure 2A, but without the cables. .

FIG. 3 is an enlarged sectional view taken along the line A--A in FIG. 2A, with the connector 40 omitted.

FIG. 4 shows an enlarged detail of one of the terminals 26 arranged on one side of the recess 24 of the terminal arrangement block 23, FIG. 4A is a side view thereof, and FIG. 4B is its side view. Front view and 4th
Figure C is its plan view.

The terminal 26 has an end part 261 for construction wiring and a part 262 for installation.
, a connector contact portion 263 , and a wiring connection portion or printed circuit board connection portion 264 .

The construction connection end 261 has three legs 261A, 261B, and 261, as best shown in FIG. 4B.
The leg 261A is longer than the other legs 261B and 261C in order to provide directionality to the terminal.

Between each leg, there is a sulin that forms a clip part) 26
1D are formed, and the terminal 26 and the thin wire 14 are connected to each other by pressure contact by pushing the thin wire 14 of the cable into the wire 261D from above.

For installation, part 262 has 5 locking pieces 2 extending downward from both sides.
62 people are provided, and these locking pieces 262A are connected to the locking holes 23B (first
(see figure) is inserted, and the terminal 26 is fixed to the terminal arrangement stand 23.

Terminal 26 is shown in FIG.

The construction wiring end portion 261 stands upright from the top surface of the terminal array base 23 , the mounting portion 262 extends above the upper surface of the terminal array base 23 , and the connector contact portion 263 connects to the recess 2 of the terminal array base 23 .
4, so that the printed circuit board connecting portion 264 extends through the through hole 23A provided at the bottom of the terminal arrangement block 23 and the through hole 22A provided in the printed circuit board 22, They are arranged on the terminal arrangement stand 23.

FIG. 5 shows in detail one terminal 250 arranged on the other side of the recess 24 of the terminal arrangement block 23, with FIG. 5A being a side view thereof and FIG. 5B being a front view thereof. It is.

The terminal 25 has a mounting portion 252 and a connector contact portion 253.
and a wiring connection portion or printed circuit board connection portion 254.

The mounting portion 252 has locking pieces 2 extending downward from both sides.
These locking pieces 252A are provided on the top surface of the terminal array base 23 and are inserted into the locking holes 23C (see FIG. 1) to secure the terminals 25 to the terminal array base 23.
Fixed to.

Terminal 25 is as best shown in FIG.

The mounting portion 252 extends over the top surface of the terminal arrangement block 23, the connector contact section 253 extends downward along the other side wall of the recess 24 of the terminal arrangement block 23, and the printed circuit board connection section 25
4 are arranged on the terminal array base 23 so as to extend through the through holes 23A provided at the bottom of the terminal array base 23 and the through holes 22A provided on the printed circuit board 22.

The ends of the connection parts 254 and 264 of the terminals 25 and 26 protruding from the hole 22A of the printed circuit board 22 to the back side are connected to each circuit conductor formed on the back side of the printed circuit board 22, as shown in FIG. As indicated by reference number 31,
It is soldered.

The state of the circuit connections on the back side of this printed circuit board 22 is shown in FIG.

Reference number 221 is a printed circuit conductor.

In the embodiment described above, the connection between the terminals 25 and 26 is made using a printed circuit board, but these may also be made by wrapping and soldering using ordinary wiring.

According to the structure of the branching connector of the present invention, the thin wire bundles of the input and output cables are introduced into the space 28, and the fine wires are distributed and fixed to the fixing groove 27A of the terminal arrangement block 23 for construction connection of the terminal 26. The tips of the fine wires are inserted into the corresponding clips at the ends to perform wire connection, and the protrusions 41 of the branching cable connectors 40 corresponding to the recesses 24 are fitted into the cover 60.
The two-branching work can be completed simply by combining the two into case 21.

At this time, the elongated groove 62A on the bottom surface of the presser piece 62 of the cover 60
As shown in FIG.
The bottom surface of the terminal array board 23 and the mounting terminal 26 are sandwiched between the bottom surface of the portion 262 and the top surface of the terminal arrangement board 23 and the top surface of the portion 262 and fixed.

According to the present invention, because of the above-mentioned interception, the receptacle connector for the branching cable connector is formed by the recess of the terminal arrangement block and the connector contact part of the terminal arranged in the recess, so that the receptacle connector for the branch cable connector is separated. There is no need to provide a receptacle connector, and the number of parts and size can be reduced accordingly.

[Brief explanation of the drawing]

Figure 1 of the accompanying drawings is a perspective view of an exploded arrangement of parts of a branching connector as an embodiment of the present invention, Figure 2A is a front view showing the assembled state of the branching connector of Figure 1, and Figure 2B is a Second
Figure 3 is an enlarged sectional view taken along the line A-A in Figure 2A with the branching cable connector omitted; Figures 4A, B, and C are the same as in Figure 1. FIGS. 5A and B are enlarged side views, front views, and top views illustrating one of the terminals used in the branch connector; FIGS. 5A and B are enlarged views illustrating another terminal used in the branch connector of FIG. A side view, a front view, and FIG. 6 are schematic diagrams showing the back side of the printed circuit board of the branch connector of FIG. 1. 11.12 Input and outlet cables, 13
...Branch cable, 14... Thin wire,
20...Base part, 21...Case,
22...Printed circuit board, 23...
Terminal array block, 24... recess, 25.26...
...terminal, 30...clamp, 40...
...Connector, 60...Cover 62...
...presser piece. 62A...Groove.

Claims (1)

[Scope of utility model registration request] A case having a terminal arrangement block and clamps for inlet and outlet cables, and a connector for connecting a single branch cable, the terminal arrangement block having a recess into which the connector can be fitted. A plurality of terminals having a construction wiring end, a mounting part, a connector contact part, and a wiring connection part are arranged on one side of the recessed part of the terminal arrangement block, and the other side is arranged. a plurality of separate terminals having a mounting portion, a connector contact portion and a wiring connection portion are arranged, the connector contact portion of each said terminal extending along each corresponding inner wall of said recess. A branching connector characterized in that the connector is configured to electrically contact each corresponding contact portion of the connector when the connector is fitted into the recess.