JPH07220776A - Power terminal block for lighting fixture - Google Patents

Abstract

PURPOSE:To facilitate confirming indoor wiring information in an information display part by providing the display part colored in a darker color system from a terminal block main unit of white color system. CONSTITUTION:In the case of molding a terminal block body 2 of white color system, engraving characters 10a, 10b of an information display part is applied to a molding die internal surface, to three-dimensionally display all the characters. Further, since a colored display part 11 is formed in black color particularly on the important character 10a, minimum indoor wiring information necessary at the time of indoor wiring work can be displayed. Thus by contrast between the white color system terminal block 2 and the three-dimensional black color character 10a, reading the wiring information is facilitated. As a result, also when performed wire connecting work to a terminal block main unit 1 in the ill-lighted attic or the like, work for inserting an electric wire respectively to a power line inserting hole 5 to the main unit 1, delivery wire inserting hole 6 and a protecting earth wire inserting hole 9 can be easily and accurately performed, to improve work efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply terminal block for lighting equipment used for connecting the lighting equipment to the power supply side.

[0002]

2. Description of the Related Art Generally, a power supply terminal block for lighting equipment is a power source,
It is used for wiring such as power supply, grounding, and grounding. As this type of terminal block, for example, one having a structure shown in Japanese Utility Model Publication No. 3-38950 is known.

This terminal block is provided with a white type terminal block body having a power supply terminal, a feed terminal and a ground terminal.
As shown in FIG. 6, in this terminal block body, a high-level wire insertion hole arrangement portion c in which insertion holes a and b for electric wires connected to a power supply terminal and a feed terminal are arranged, and this electric wire insertion hole arrangement portion c And a low step portion d that is arranged around the wire and is one step lower than the electric wire insertion hole arrangement portion c. Then, an insertion hole e of the ground wire connected to the ground terminal is arranged in this low step portion d.

An information display section f for displaying information for indoor wiring is formed on the surface of the terminal block body. In the information display portion f, for example, the insertion hole a of the power supply wire, the insertion hole b of the feed wire, the compatible power supply, the wire peeling dimension and the insertion hole e of the ground wire, and the letter g indicating the number etc. are displayed. Here, in the conventional power supply terminal block, the power supply wire insertion hole a, the feed wire insertion hole b, the applicable power supply, and the wire peeling size display characters g, which are the parts that the user particularly pays attention to, are different from the other parts. Is also arranged in the electric wire insertion hole arranging portion c of the higher tier. It should be noted that the insertion hole e of the ground wire and the display character g indicating the postal code etc.
Are arranged on the lower step d of the surface of the terminal block body.

Further, the display character g displayed in the high-level wire insertion hole arrangement portion c on the surface of the terminal block body is, for example, when molding a white type terminal block body such as urea resin which is a hard synthetic resin. By engraving the inner surface of the molding die used, the height from the surface of the terminal block body after molding is 0.2 to 0.3.
It is projected three-dimensionally by about 3 mm. The display character g of the information display portion f may be formed by being printed on the surface of the terminal block body.

[0006]

The three-dimensional display character g of the high-level wire insertion hole arrangement portion c on the surface of the terminal block body having the above-mentioned conventional structure is a synthetic resin such as urea resin when the terminal block body is molded by the molding die. Since it is integrally molded with the terminal block body with material,
It has the same white color as the terminal block body. Therefore, when the stereoscopically displayed character g on the terminal block body is illuminated with light obliquely or laterally, a shadow of the character g is formed, which makes it easier to read the character g on the terminal block body.
When the stereoscopic display character g is irradiated with light from the front or when the surroundings are dim, the character g cannot be shaded, so that the character g on the terminal block body is difficult to read.

In particular, when the lighting fixture is installed, wiring work to the terminal block is often performed, for example, in a dim place on the ceiling, so that the white color of the terminal block body is the same as that of the terminal block body of the above-mentioned conventional structure. When the information for indoor wiring is displayed by the three-dimensional display character g of the system, the information display portion f is difficult to read. Therefore, it takes time to check the positions of the wire insertion holes a, b, and c in order to prevent the incorrect connection of the wires to the terminal block, and the work time for connecting the wires to the terminal block becomes long. The reality is that

The present invention has been made in view of the above circumstances, and its purpose is to make it easy to confirm the main indoor wiring information displayed on the surface of the terminal block body, and to install the lighting fixture. An object of the present invention is to provide a power supply terminal block for a lighting fixture that can improve work efficiency.

[0009]

According to a first aspect of the present invention, there is provided a white terminal block body having a power supply terminal, a feed terminal, and a ground terminal, and the terminal block body is connected to the power supply terminal and the feed terminal. A high-level wire insertion hole arrangement part in which the wire insertion hole is arranged, and a low-step part arranged around the wire insertion hole arrangement part and one step lower than the wire insertion hole arrangement part, and A power supply terminal block for lighting equipment in which an insertion hole for a ground wire connected to the ground terminal is arranged in this low step part, and an information display section for displaying information for indoor wiring is formed on the surface of the terminal block body. In the above, a colored display portion is provided in which the portion for displaying the indoor wiring information of the information display portion is colored in a darker color than the terminal block body to distinguish it from other portions.

According to a second aspect of the invention, the portion of the ground wire display portion for displaying the insertion hole of the ground wire of the power terminal block for lighting equipment according to the first aspect of the invention is more than the lower step portion of the terminal block body. A protrusion for distinguishing the ground wire insertion hole is provided so as to project and distinguish the ground wire insertion hole.

[0011]

According to the first aspect of the present invention, by visually observing the colored display portion colored in a darker color than the white terminal block body, the indoor wiring information in the information display portion can be obtained regardless of the amount of light. The display part of is displayed at a glance.

According to the second aspect of the present invention, when the low step portion of the terminal block body is touched with fingers, the ground wire insertion hole discriminating projection of the low step portion of the terminal block body is sensed by the touch to sense the ground wire. The position of the ground wire display portion that displays the insertion hole is determined so that the position of the ground wire insertion hole can be easily checked with reference to the position.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 shows a power supply terminal block for lighting equipment installed on the ceiling of a house, for example. The main body 1 of this power supply terminal block includes a terminal block body 2 shown in FIG.
3 is provided, and an internal terminal unit 4 shown in FIG. 3 arranged between the terminal block body 2 and the terminal block cover 3. Here, the internal terminal unit 4 is provided with, for example, a plurality of terminal plates constituting a power supply terminal, a feed terminal, a ground terminal and the like, and a lock terminal.

The terminal block body 2 is formed in a substantially box shape from a white hard synthetic resin material such as urea resin. In FIG. 2, a bottom surface and one side surface of the terminal block body 2 are opened to form a substantially L-shaped opening 2a.

Further, the terminal block cover 3 is made of a synthetic resin material such as polypropylene and is substantially L of the terminal block body 2.
It is bent and formed in a substantially L-shape corresponding to the opening 2a having a character shape. Then, with the internal terminal unit 4 disposed between the terminal block body 2 and the terminal block cover 3, the terminal block cover 3 closes the L-shaped opening 2 a of the terminal block body 2. 2 is assembled and integrally connected by means such as screwing.

In FIG. 2, the terminal block body 2 has a top surface 2b on which a pair of electric wire insertion holes 5 and 6 connected to the power supply terminal and the feed terminal, which are the internal terminal units 4, are arranged. The electric wire insertion hole arranging portion 7 and the low step portion 8 which is arranged around the electric wire insertion hole arranging portion 7 and is one step lower than the electric wire insertion hole arranging portion 7. A pair of ground wire insertion holes 9 connected to the ground terminal of the internal terminal unit 4 are arranged in the low-level portion 8.

Further, an information display section 10 for displaying information for indoor wiring is formed on the surface of the terminal block body 2. The information display unit 10 includes, for example, a "power source" indicating the power source wire insertion hole 5 that the user pays particular attention to, a "feed" indicating the feed wire insertion hole 6, a "protective earth" indicating the protective ground wire insertion hole 9, and the like. "Φ1.6φ2Cu single wire dedicated" showing compatible wires,
The character 10a such as "13 mm" indicating the wire peeling size, "20 A 300 V" indicating the rated capacity, "N" indicating the low potential side, "DFC-3609" indicating the product model name, etc. is provided and the user Is provided with a character 10b indicating a standard number or the like which is not particularly noted. The character 10b indicating the standard number or the like is arranged on the lower step portion 8 of the terminal block body 2.

Here, the character 10a indicating the type of the power supply wire insertion hole 5, the feed wire insertion hole 6, the protective ground wire insertion hole 9 and the like of the information display section 10 indicates how the user inserts each electric wire. It has an important role to know if it is good. Therefore, the characters 10a such as "power", "feed", "protective earth", etc. indicating the kind of the hole are arranged in the vicinity of the power wire insertion hole 5, the feed wire insertion hole 6, the protective earth wire insertion hole 9, etc. The positions of a plurality of types of holes such as the power supply wire insertion hole 5, the feed wire insertion hole 6, and the protective ground wire insertion hole 9 are clearly distinguished.

All the characters 10 in the information display section 10
a and 10b are, for example, after molding by engraving corresponding to the characters 10a and 10b of the information display portion 10 on the inner surface of the molding die used when molding the white terminal block body 2 such as urea resin. The height from the surface of the terminal block body 2 of 0.
It is projected three-dimensionally by about 2 to 0.3 mm. Among these, in the display portion of the character 10a that the user pays particular attention to, a black ink is printed on the stereoscopically displayed stereoscopic display character 10a, and the terminal block body 2 is colored in a darker color than the terminal block body 2. The colored display portion 11 is formed so as to be distinguished from the portion. It should be noted that the characters 10b and the like indicating the standard number or the like, which the user does not pay particular attention to, are not printed with black ink, and are shown only in three-dimensional display.

Further, a protruding portion 12 which is projected one step higher than the low step portion 8 of the terminal block body 1 is provided at a portion where "protective earth" indicating the insertion hole 9 of the earth wire is displayed. The protrusion 12 is arranged at an intermediate position between the pair of ground wire insertion holes 9 formed in the low step portion 8 of the terminal block body 1. Further, the width t of the protrusion 12 is set to about 5 mm, for example. Then, when the lower step portion 8 of the terminal block body 1 is touched with fingers, the position of the ground wire display portion is discriminated by the feel of the protrusion 12 and the position of the ground wire insertion hole 9 can be easily determined with reference to the position. This protrusion 12 is used to identify the ground wire insertion hole 9 for confirmation.

A hole 13 for a current test is formed in the lower step portion 8 of the terminal block body 1. Further, the terminal block cover 3 has a load wire insertion hole 14, a lock hole release hole 15 of the internal terminal unit 4, and a fixing screw insertion hole 16.
Etc. are provided.

Therefore, the following effects are obtained with the above-mentioned structure. That is, by engraving the inner surface of the molding die used when molding the white terminal block body 2 of urea resin or the like corresponding to the characters 10a and 10b of the information display unit 10, the terminal block after molding is formed. A height of about 0.2 to 0.3 mm is projected from the surface of the body 2 so that all the characters 10a and 10b of the information display portion 10 on the surface of the terminal block body 2 are displayed three-dimensionally. Since the colored display portion 11 printed with black ink is formed on the three-dimensional display character 10a which is three-dimensionally displayed on the display portion of the character 10a to be particularly noticed, the minimum indoor wiring required during the indoor wiring work. Only the information for three-dimensional black character 10a
Can be displayed by. Therefore, it is possible to effectively increase the color contrast between the white terminal block body 2 and the three-dimensional black character 10a. Only the minimum information for indoor wiring displayed can be made easy to read.

As a result, even when the wiring work to the terminal block body 1 is performed in a dim place on the ceiling when installing the lighting fixture, the power supply line insertion hole 5 and the feed wire insertion hole 6 of the terminal block body 1 are inserted. , The worker inserts the power line into the protective earth line insertion hole 9,
Since the work of inserting the feed wire and the protective ground wire can be performed more easily and accurately than before,
It is possible to improve the work efficiency of the installation work of the lighting equipment.

Furthermore, the character 10a that the user pays particular attention to
The display portion of is not only printed in black, but is also formed by the colored display portion 11 printed in black ink on the three-dimensionally displayed character 10a which is three-dimensionally displayed. Even if the black ink becomes difficult to see, such as when the black ink adheres, there is no fear that the character 10a becomes completely unreadable.

Further, in the portion indicating the "protective earth" indicating the earth wire insertion hole 9, the terminal block main body 1 is provided with a portion 5 lower than the lower step portion 8.
Since the protrusion 12 is provided with a height of about 1 mm, which is projected one step higher, for identifying the ground wire insertion hole of the low step portion 8 of the terminal block body 1 when the low step portion 8 of the terminal block body 1 is touched with a finger. Projection 1
The position of the ground wire display portion for displaying the ground wire insertion hole 9 can be discriminated by the feel of hand 2, and the position of the ground wire insertion hole 9 can be easily confirmed with reference to the position. As a result, the work of inserting the ground wire into the ground wire insertion hole 9 of the terminal block body 1 can be performed accurately and easily.

Further, the protrusion 12 for identifying the ground wire insertion hole is provided.
Is located at an intermediate position between the pair of ground wire insertion holes 9 formed in the low step portion 8 of the terminal block body 1, so that the positions of the ground wire insertion holes 9 on both sides of the protruding portion 12 can be easily confirmed by groping. can do. Therefore, the operator can visually check the positional relationship between the wire insertion holes 5, 6 and 9 of the terminal block body 1 once, and after actually mounting the lighting fixture on the ceiling, When there is no light around the terminal block body 1 during the work for inserting the terminal block body, you can surely determine the position of the ground wire insertion hole 9 of the protective ground by touching the terminal block body 1 even in a dark working environment. can do. Further, since the other wire insertion holes 5 and 6 can be easily identified based on the position of the ground wire insertion hole 9 of the protective ground determined here, the other wire insertion holes 9 and 6 can be easily identified as in the conventional case. The display character is arranged on the same plane, and the work efficiency of the installation work of the lighting fixture can be further enhanced as compared with the case where it is difficult to confirm the position of the ground wire insertion hole 9 even if it is touched by hand.

FIG. 5 shows another embodiment of the present invention. This applies the present invention to the power supply terminal block 21 for three-phase alternating current. That is, this power supply terminal block 2
The first terminal block body 22 is formed in a substantially box shape from a white hard synthetic resin material such as urea resin. further,
This terminal block body 22 has a high-stage wire insertion hole arrangement portion 25 in which insertion holes 23 and 24 of three electric wires respectively connected to the power supply terminal and the feed terminal inside the power supply terminal block 21 are arranged, and this electric wire. It is arranged around the insertion hole arrangement portion 25,
A low step portion 26 that is one step lower than the electric wire insertion hole arrangement portion 25 is provided. The lower step portion 26 has a pair of ground wire insertion holes 2 for connecting to a ground terminal inside the power supply terminal block 21.
7 are arranged.

An information display section 28 for displaying information for indoor wiring is formed on the surface of the terminal block body 22.
In this information display portion 28, for example, "power supply" indicating the power supply wire insertion hole 23 that the user pays particular attention to, the feed wire insertion hole 24
"Feed", "Protective Earth" showing protective earth wire insertion hole 27, "Applicable electric wire" φ1.6 φ2.0 Cu single wire only "," 13 mm "showing wire peeling dimension," 20A300V "showing rated capacity Further, characters 28a such as "N" indicating the low potential side and "DFC-3610" indicating the product model name are provided, and a character 28b indicating a standard number or the like not particularly noticed by the user is provided. The characters 28b indicating the standard number and the like are arranged on the lower step portion 26 of the terminal block body 22.

All the characters 28 in the information display section 28
a and 28b are, for example, after molding by engraving the inner surface of the molding die used when molding the white terminal block body 22 made of urea resin or the like corresponding to the characters 28a and 28b of the information display section 28. The terminal block body 22 is three-dimensionally displayed by protruding from the surface of the terminal block body 22 by a height of about 0.2 to 0.3 mm. Among these, in the display portion of the character 28a that the user pays particular attention to, a black ink is printed on the stereoscopically displayed stereoscopically displayed character 28a, which is colored in a darker color than the terminal block body 22. Colored display part 2 distinguished from the part
9 is formed. It should be noted that the characters 28b and the like indicating the standard number or the like, which the user does not pay particular attention to, are not printed with black ink, and are represented only by a three-dimensional display.

Further, a protruding portion 30 which is projected one step higher than the low step portion 26 of the terminal block body 22 is provided at a portion indicating the "protective earth" showing the insertion hole 27 of the earth wire. The protrusion 30 is arranged at an intermediate position between a pair of ground wire insertion holes 27 formed in the low step portion 26 of the terminal block body 22. Then, when the lower step portion 26 of the terminal block body 22 is touched with fingers, the position of the ground wire display portion is discriminated by the sense of touch of the protrusion 30, and the position of the ground wire insertion hole 27 can be easily determined based on that. The protrusion 30 is used to identify the ground wire insertion hole 27 for confirmation.

Therefore, even with the above-mentioned structure, the color contrast between the white-colored terminal block body 22 and the three-dimensional black character 28a can be effectively increased as in the above-described embodiment. When the terminal block 21 is viewed, only the minimum indoor wiring information displayed by the three-dimensional black character 28a can be easily read.

As a result, even when the wiring work to the terminal block 21 is performed in a dim place on the ceiling when installing the lighting fixture, the power line insertion hole 23, the feed wire insertion hole 24, and the protection of the terminal block 21 are protected. Since the worker can insert the power supply wire, the feed wire, and the protective ground wire into the ground wire insertion hole 27 more easily and more accurately than ever before, the work efficiency of the lighting fixture installation work can be improved. Can be achieved.

Further, since the protruding portion 30 protruding one step higher than the low step portion 26 of the terminal block 21 is provided at the portion indicating the "protective earth" indicating the earth wire insertion hole 27, the terminal block 2
When touching the low stepped portion 26 of No. 1 with a finger, the position of the ground wire insertion hole 27 for displaying the ground wire insertion hole 27 is set by the touch feeling of the protrusion 30 for determining the ground wire insertion hole of the low stepped portion 26 of the terminal block 21. Distinguish, ground wire insertion hole 27 based on that
You can easily check the position of. As a result, the work of inserting the ground wire into the ground wire insertion hole 27 of the terminal block 21 can be performed accurately and easily.

The present invention is not limited to the above embodiments. For example, in the above embodiment, the terminal block body 2
The structure in which the terminal block cover 3 and the terminal block cover 3 are integrally coupled by means such as screwing has been shown.
As shown in Japanese Patent Laid-Open Publication No. 2004-115, the terminal block body 2 and the terminal block cover 3 are provided with a locking hole and a locking claw, respectively, and by locking these, a space between the terminal block body 2 and the terminal block cover 3 is provided. You may make it the structure connected.

Furthermore, it goes without saying that various modifications can be made without departing from the scope of the present invention.

[0036]

The present invention has the following effects.

According to the first aspect of the present invention, the colored display in which the display portion of the information for indoor wiring of the information display portion is colored in a darker color than the main body of the terminal block to distinguish it from other portions. Since the part is provided, by visually observing the colored display part colored in a darker color than the white terminal block main body, regardless of the amount of light, the information display part for indoor wiring information can be seen at a glance. Therefore, it is possible to improve the work efficiency of the lighting fixture installation work.

According to the second aspect of the invention, the portion of the ground wire display portion for displaying the insertion hole of the ground wire according to the first aspect is projected from the low step portion of the terminal block body to ground. Since a protrusion for identifying the ground wire insertion hole that distinguishes the wire insertion hole is provided, for identifying the ground wire insertion hole of the low step part of the terminal block body when the low step part of the terminal block body is touched with fingers It is possible to determine the position of the ground wire display portion that displays the ground wire insertion hole by the feel of the protrusion, and to easily confirm the position of the ground wire insertion hole based on that position.

[Brief description of drawings]

FIG. 1 is a plan view showing an information display unit on the surface of a power supply terminal block according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a terminal block body of the power supply terminal block of the embodiment.

FIG. 3 is a perspective view showing internal terminals of the power supply terminal block of the embodiment.

FIG. 4 is a perspective view showing a terminal block cover of the power supply terminal block of the embodiment.

FIG. 5 is a plan view showing an information display unit on the surface of a power supply terminal block according to another embodiment of the present invention.

FIG. 6 is a perspective view showing a terminal block body of a conventional power supply terminal block.

[Explanation of symbols]

1 ... Power supply terminal block body, 5, 23 ... Power supply wire insertion hole, 6, 2
4 ... Feed wire insertion hole, 7, 25 ... Electric wire insertion hole arrangement part,
8, 26 ... Lower step portion, 9,27 ... Protective earth wire insertion hole, 1
0, 28 ... Information display unit, 10a, 10b, 28a, 28
b ... Letters 11, 29 ... Colored display section.

Claims (2)

[Claims] 1. A high-level terminal block body comprising a white-colored terminal block body having a power supply terminal, a feed terminal, and a ground terminal, in which insertion holes for electric wires connected to the power supply terminal and the feed terminal are arranged. An electric wire insertion hole arrangement portion and a low step portion arranged around the electric wire insertion hole arrangement portion and one step lower than the electric wire insertion hole arrangement portion are provided, and the low step portion is connected to the ground terminal. In a power supply terminal block for lighting equipment, in which an insertion hole for a ground wire is arranged and an information display section for displaying information for indoor wiring is formed on the surface of the terminal block body, the information for indoor wiring of the information display section The power supply terminal block for a lighting fixture is characterized in that a colored display portion is provided by coloring the display portion of (1) with a darker color than the terminal block body to distinguish it from other portions. 2. A ground wire insertion hole discrimination part for distinguishing the ground wire insertion hole by projecting a part of the ground wire display part for displaying the ground wire insertion hole from a lower step portion of the terminal block body. The power supply terminal block for a lighting fixture according to claim 1, wherein the projection is provided.