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Terminal unit for electric equipment

A technology of terminal devices and electrical equipment, which is applied in the direction of relays, electromagnetic relays, relay terminal arrangement, etc., and can solve problems such as electric shock

Inactive Publication Date: 2004-12-01
FUJI ELECTRIC FA COMPONENTS & SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, when wiring a wire whose diameter is smaller than the size of the wire insertion hole 13a of the terminal cover 13, there is a gap around the wire that allows insertion of fingers and sundries. electric shock hazard

Method used

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  • Terminal unit for electric equipment
  • Terminal unit for electric equipment
  • Terminal unit for electric equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Figure 1-Figure 3 It is a block diagram of a terminal device corresponding to claim 1 of the present invention. In this example, first as figure 1As shown in (a)-(d), the terminal board 5 with screw holes installed as standard on the terminal part 3a of the equipment case is used as a terminal for crimping terminal connection, and the wire harness connection of the wires is overlapped and inserted into the terminal board 5. The box body 15 on it is fastened on the terminal board 5 by countersunk screws 18, and then covers the terminal board 5, the top and the front of the box body 15, and the terminal cover 13 is installed on the terminal part 3a, thus , constitute a terminal device corresponding to the direct wiring of electric wires.

[0032] Here, the box body 15 is a copper rectangular tube with its front and rear open, and screw holes are formed on its upper and lower surfaces, and terminal screws 17 are screwed to the screw holes on the upper side. On the oth...

Embodiment 2

[0038] Figure 4 (a) and (b) are structural views of a terminal cover corresponding to claim 2 of the present invention. In this embodiment, on the front of the terminal cover 13, a flat block-shaped protrusion 13c protruding forward is formed along the periphery of the wire insertion hole 13a.

[0039] The flat block-shaped protrusion 13c is as figure 2 In the connected state of the electric wire 6 shown in (a), even if the wire bundle is exposed to the outside of the terminal cover 13 due to the somewhat long peeling length of the (bare) wire bundle 6a, the above-mentioned flat block-shaped protrusion can also play a protective role. The function of the surface prevents fingers or foreign objects from touching the wire harness. Thereby, it is possible to prevent an unexpected electric shock accident caused by mistaken contact of a finger with a charged part.

Embodiment 3

[0041] Figure 5 (a) and (b) are structural views of a terminal cover corresponding to claim 3 of the present invention. In this embodiment, on the inner side of the upper portion of the wire insertion hole 13a opened at the cover front of the terminal cover 13, there is formed a detachable arch-shaped rib 13d extending across the hole.

[0042] Thus, even if the actually used wires are thin, the arched ribs 13d extending across the space above the wires in the hole 13a can function as guide rails when the wires are inserted into the holes 13a of the terminal cover 13 to connect the terminals. Thereby, it is possible to prevent fingers or foreign objects from touching the live parts (lead wires of electric wires) inside the terminal cover 13 from the outside, and to ensure high safety.

[0043] In addition, when actually using a thicker wire to connect to the terminal, or when inserting the test spacer into the wire insertion hole to check whether the size of the hole of the ...

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PUM

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Abstract

Terminal unit for electric equipment to enable a terminal part of an electric appliance to divert to the use of direct wiring of a cable by adding box parts, while utilizing a terminal plate for a crimp contact wiring, and a terminal cover covering the terminal part which are mounted as a standard parts. A box 15 for direct wiring, with screw holes on top and bottom faces, is superposed on a terminal plate 5 for wiring having a screw hole for a crimp contact terminal mounted as a standard part at a terminal part of an appliance case, and the box is mounted on the terminal plate 5 by inserting and tightly fastening a flat heated screw 18 to the bottom side screw hole of the box, and an elemental wire of the cable inserted into the box from front side when wiring, is clamped between a terminal screw 17 screwed into the screw hole on the top side of the box, and the bottom face of box by clamping, further, a terminal cover 13, covering the terminal plate and the box, having a cable insertion hole 13a and a screw driver insertion hole 13b opened at the terminal part, is mounted.

Description

technical field [0001] The invention relates to a terminal device for wiring electrical equipment, the terminal device is a terminal device for connecting electrical (gas) equipment with an electromagnetic contactor and a thermal relay attached to the electromagnetic contactor as connection objects. Background technique [0002] Electromagnetic contactors and thermal relays are equipped with terminals for connecting main circuit wires, which are shown in Figure 6 (a), (b). exist Figure 6 Among them, the main box body of the electromagnetic contactor 1 and the thermal relay 2 is a resin molded box body (hereinafter referred to as the equipment box body 3), and a corner of the box body 3 is formed by separating and forming an interphase barrier layer. The terminal portion 3a of the main circuit and the control circuit is provided with a terminal 4 for connection on the terminal portion 3a. [0003] Here, as the terminal 4 for wiring, it is usually equipped with specificatio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01R9/00H01H45/14H01H50/02H01H50/14H01R4/28
Inventor 深谷直树
Owner FUJI ELECTRIC FA COMPONENTS & SYST CO LTD