JPH0411341Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a terminal block, and more particularly to a terminal block that effectively prevents short circuits or electric shocks.

[Conventional technology and problems]

2. Description of the Related Art Various types of electrical equipment, particularly electrical equipment such as oil baths and transformers used in chemical experiments, are provided with terminal blocks at predetermined positions that serve as connection ports for conducting electricity from a power source.

This terminal block includes an annular member made of a conductive material,
It is composed of a clamping member made of an insulating material for clamping the annular member and a conductive rod having a thread formed thereon, and the conductive rod passes through the annular member and the clamping member.

Therefore, by connecting the terminal of the lead wire connected to the power source to this terminal block and holding this terminal between the annular members and holding the terminal under pressure, it is possible to stably and continuously supply electricity to the electric device.

By the way, in the case of conventional terminal blocks, when the terminal of the lead wire is clamped and held by the annular member that receives the pressing force from the clamping member to ensure the conduction state, the annular member made of the current-carrying material is exposed to the outside. As a result, there have been many accidents such as short circuits caused by metal touching the annular member, and electric shocks caused by fingers touching it. As a means to prevent this accident, the exposed conductive parts were wrapped with vinyl tape to insulate them, but this vinyl tape has the problem of deteriorating and peeling off over time. It was hot.

[Purpose of invention]

An object of the present invention is to provide a terminal block that can solve the above problems and effectively prevent short circuits and electric shock accidents.

[Structure of the idea]

The present invention includes an annular member made of a conductive material, at least a pair of clamping members made of an insulating material that clamp and hold the annular member, and a conductive conductor provided with a screw passing through these annular members and the clamping members. A terminal block for electrical equipment consisting of a rod, in which one of the clamping members is formed of an umbrella member made of an insulating material with a cutout at the bottom, and the annular member is positioned inside the umbrella member. This is a terminal block that is characterized by:

[Example of idea]

Next, the present invention will be explained with reference to the embodiments shown in the drawings.

FIG. 1 is a front view of the present invention, FIG. 2 is a perspective view of an umbrella member, and FIGS. 3 and 4 are front views of a conventional terminal block.

In the figure, reference numeral 1 denotes a lead wire, 2 a terminal of the lead wire, 3a and 3b a pair of annular members made of a conductive material, and the terminal 2 is the annular member 3.
It is held under pressure by the inner surfaces of a and 3b. The annular members 3a and 3b are loosely fitted through a conductive wire rod 4 provided with a screw, and the outside of the annular member is made of an insulating material that is screwed or fixed to the conductive rod 4. The clamping members 5a and 5b are then attached. Reference numeral 6 indicates electrical equipment such as an oil bath and a transformer.

One of the pair of clamping members 5a, 5b of the present invention is
It is formed into an umbrella member 8 having a notch 7 at its lower part, and its material is usually made of an insulating material.

The notch 7 of the umbrella member 8 is secured as a passage for the lead wire 1 and the terminal 2 to pass through. Therefore, the umbrella member 8 is placed on the conductive rod 4 when holding the terminal 2 under pressure. It will be formed on the clamping member on the side that does not rotate with respect to the electric device 6.

It is sufficient that the notch 7 is large enough for the lead wire 1 and the terminal 2 to pass through, and it is not made larger than necessary.

Therefore, when the clamping members 5a and 5b are rotated and the terminal 2 is clamped and held between the annular members 3a and 3b, the umbrella member 8 formed on one clamping member 5b is stabilized with the annular member and the terminal housed inside. Continuous energization is ensured.

Since the present invention has the above-mentioned configuration, the exposed upper and side parts near the annular member are reliably hidden from the surroundings, and there is no gap left near the lower cutout for objects or fingers to get into, thereby preventing accidental short circuits. This will prevent electric shock accidents.

[Effect of idea]

Therefore, since the annular member is not exposed, the present invention prevents objects and fingers from touching the annular member, thereby preventing accidents such as short circuits and electric shocks, and has the practical effect of providing a highly safe terminal block. .

[Brief explanation of the drawing]

FIG. 1 is a front view of the present invention, FIG. 2 is a perspective view of an umbrella member, and FIGS. 3 and 4 are front views of a conventional terminal block. 1... Lead wire, 2... Terminal, 3a, 3b...
Annular member, 4... Conductive rod, 5a, 5b... Holding member, 6... Electrical equipment, 7... Notch, 8...
Umbrella parts.

Claims (1)

[Scope of utility model registration request] Consisting of an annular member made of a conductive material, at least a pair of clamping members made of an insulating material that clamp and hold the annular member, and a conductive rod provided with a screw passing through these annular members and the clamping members. The terminal block for electrical equipment is characterized in that one of the clamping members is formed of an umbrella member made of an insulating material with a cutout at the bottom, and the annular member is positioned inside the umbrella member. Terminal block.