JPS614173A - Terminal base - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Field of application of the invention] The present invention relates to a terminal block for relaying wiring.

[Background of the invention]

The conventional method for relaying wiring on a terminal block is to secure the crimp terminal crimped to the wire by screwing it into the screw hole provided on the crimp terminal mounting surface, then relay and connect it. Mainly known. However, this method
It is necessary to consider the lead-in space for the wires to each terminal block of the relay wiring, which is a main factor in reducing the mounting efficiency.

Sometimes, in a terminal block for mounting a plug-in (hereinafter referred to as PI), in order to secure a space for wiring, the mounting of the PI must be left open, which hinders high-efficiency mounting.

Similar terminal blocks for wiring relays include Public Utility Model Publication No. 56-51268 or Patent Publication No. 52-35
876 etc.

FIG. 2 shows an example of a conventional terminal block.

In the figure, 1 is the wiring, and 2 is the wiring 1 connected to the terminal block by 1""m.
``t;b*hoETss''・httis*sr** The terminal block main body, 8 indicates a screw for tightening and fixing the crimp terminal 2 to the terminal block, and 9 indicates a terminal contact piece of a conductor.

FIG. 3 shows a detailed cross-sectional view of the terminal block of FIG. 2.

The main parts of a conventional terminal block are a terminal block body (hereinafter referred to as the terminal block body) 7 made of an electrical insulator, a terminal connection piece 9 embedded in the terminal block body 7, and a crimp terminal fastener. attached screw 8
) consists of When wiring 1 with a crimp terminal is relayed to a terminal block, it is attached horizontally to the crimp terminal mounting surface and fixed with the terminal contact piece 9 and the crimp terminal tightening screw 8.

However, this method requires space for wiring,
When a plurality of terminal blocks are used to relay a large number of wires, it is necessary to secure a space between the terminal blocks as a wiring lead-in space, which poses a problem of significantly reducing mounting efficiency.

[Purpose of the invention]

An object of the present invention is to create a highly efficient mounting terminal block that eliminates the need for conventional wiring lead-in space by housing a contact piece inside the terminal block formed of an electrical insulator and effectively fixing relay wiring. It is on offer.

[Summary of the invention]

The present invention stores a contact piece inside the terminal block, and fixes the wire with the crimp terminal inserted into the contact piece through the crimp terminal insertion hole provided on the crimp terminal mounting surface (by external stress). This allows wires to be drawn in from a direction perpendicular to the crimp terminal mounting surface of the conventional terminal block, solving the problem of terminal blocks that require a space to draw in the wires.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 4 shows a terminal block according to the invention. In the figure, 3
4 is the terminal block main body molded from electrical insulator, 4 is the pressure insertion screw terminal holder which also enables logical sum and conventional relay method, and 5 is for external stress and also allows the conventional relay method. 6 is an elastic crimp terminal contact piece (hereinafter referred to as a contact piece); 10 is an insertion hole for a wire with a crimp terminal (hereinafter referred to as a wire insertion hole); ).

FIG. 1 shows details of the cross section of the terminal block in FIG. 4.

FIG. 5 shows the detailed relationship between the wire 1 with crimp terminal and the contact piece 6. In FIG. 5, reference numeral 11 indicates a protrusion provided on the contact piece 6.

FIG. 6 shows a pressurizing part that applies stress instead of the tightening screw 5.
A detailed cross-sectional view of the terminal block is shown in which the terminal block has a structure with a rotation locking mechanism molded from an insulating material, and 12 is a pressure lever having a structure with a rotation locking mechanism.

FIG. 7 shows a detailed structural diagram of the pressure lever 12 in FIG. 6.

FIG. 8 is a perspective view of the device installed in a plug-in (hereinafter referred to as PI), and 14 indicates a printed board (hereinafter referred to as PB).

FIG. 9 shows a cross-sectional detail of FIG. 8.

First, in FIGS. 1 and 4, the wire 1 with crimp terminal is inserted into the wire insertion hole 10 provided in the terminal block body 3 in a direction perpendicular to the conventional terminal mounting surface. Initially, the contact piece 6 is in an open state with respect to the wire l with crimp terminal, as shown by the solid line.
After inserting the crimp terminal attachment wire 1 into the inside of the terminal block main body 3 through the wiring insertion hole lO, the contact piece 6 is pushed in the direction perpendicular to the pressure insertion part 5 by tightening the screw of the suppression part 5. , and hold the crimp terminal 2 as shown by the broken line. Further, as shown in FIG. 5, the contact piece 6 is provided with a protrusion 11 which engages with the hole for fixing the crimp terminal 2 inserted through the wire insertion hole, so that the wire 1 with the crimp terminal is fixed. be done.

In the example shown in FIG. 6, the relationship between the pressure lever 12, the contact piece 6, and the crimp terminal wiring 1 is changed by replacing the pressure insertion part in FIG. , is the same as that shown in FIG. 1, but the wire 1 with the crimp terminal can be inserted and removed by push/pull rotation of the pressure lever 12 without requiring a jig such as a screwdriver.

Furthermore, in FIGS. 1 and 4, the screw receiver of the pressure-inserting part 5 is made into part 4, and the metal piece pressure-inserting part's screw terminal holder is made into part 4, so that the same relaying method as before can be achieved, and the same signal can be transmitted. Multidirectional relay becomes possible.

Further, by making the metal piece pressurizing part screw receiver have a plurality of consecutive terminals in the part 4, an arbitrary logical sum can be obtained.

〔Effect of the invention〕

According to the present invention, (1) highly efficient mounting of a terminal block is possible;

■Especially for PI mounting, no wiring space is required, which can improve the PI mounting efficiency in the PI unit. ■It is possible to create a structure that does not require jigs such as a screwdriver, and is expected to improve wiring work efficiency. ■Multi-directional wiring is possible. ■ Depending on the combination of metal pieces,
Any logical sum can be taken, and wiring work efficiency can be improved.

[Brief explanation of drawings]

FIG. 1 is a sectional view of the terminal block of the present invention, FIG. 2 is a schematic diagram of a conventional terminal block, FIG. 3 is a sectional view of a conventional terminal block, FIG. 4 is a schematic diagram of the terminal block of the present invention, and FIG. The figure is a detailed view of a terminal piece used in the terminal block of the present invention, Figures 6 and 7 are cross-sectional views and perspective views of applied examples of the present invention, and Figure 8 is an example in which the terminal block of the present invention is mounted with a PI. The perspective view shown in FIG. 9 is a sectional view when the terminal block of the present invention is mounted with a PI. U...Wiring, 2...Crimp terminal, 3...Terminal block body, 4...1. Gold maple piece pressure insertion part screw terminal receiving part, 5... pressure insertion part, 6...
Contact piece, 7...Terminal block body, 8...Tightening screw, terminal connection piece for 9, 10...Insertion hole, 11...Protrusion, 1
2... Pressure lever, 13... Terminal block body, 14...
・P.I.

Claims (1)

[Claims] 1. In a terminal block for fixing and connecting a crimp terminal provided at an end portion of an electric wire by a contact piece provided on an electrical insulator, the terminal block is provided with a contact piece provided at the end portion of the electric wire to the electrical insulator. an insertion hole for inserting the crimp terminal; a contact piece made of an elastic body formed from a conductive member disposed inside the electrical insulator so as to correspond to the insertion hole; and with this contact piece,
A pressing part is provided that applies stress for fixing and holding the crimp terminal provided at the end of the electric wire, and the stress from the pressing part causes the electric wire to be compressed through the contact piece made of the elastic body. holding the crimp terminal provided at the terminal portion;
A terminal block characterized by connecting. 2. In claim 1, the contact piece made of the elastic body is arranged perpendicularly to the insertion direction of the crimp terminal of the electric wire terminal portion, and the terminal portion of the electric wire is disposed from the front side of the terminal block. A terminal block, characterized in that the crimp terminal described above is inserted therein. 3. Claim 1, characterized in that the pressing part that applies stress to the contact piece made of the elastic body has a structure of a screw terminal formed of a conductive member and a screw terminal holder for the screw terminal. Terminal block. 4. In claim 1, the pressing part that applies stress to the contact piece made of an elastic body is a rotation locking mechanism formed of an insulating member, and the rotational insertion and pulling operation of the pressing part A terminal block characterized in that the crimp terminal of the electric wire terminal portion can be held and connected. 5. In claim 1, the screw terminal receiving part of the pressure insertion part has an integral structure in which the crimp terminals of the terminal parts of the plurality of electric wires are connected, and logical sum connection is possible. A terminal block characterized by: