JPH01120782A - Electric apparatus - Google Patents

Abstract

PURPOSE:To arrange the constitution that screw tightening work may be performed from the rear(bottom) side of an apparatus and steady screw tightening may be executed by accompanying a hand to a screw by separating the apparatus with an outside case as a bottom cover. CONSTITUTION:The bottom face of an outside case 1 is cut off and opened largely at a part corresponding to a connection terminal part 3 so that the part of an internal lead fastening screw 303 of a terminal fixture 301 may be exposed and after electric connection of an internal element 5 with an internal lead fastening screw 303, this bottom cover is closed and connected and fixed using a screw hole 104 at the outside case 1. Before connecting the bottom cover to the outside case 1 a connection lead from the internal element 5 is connected electrically to each terminal fixture 301 at the connection terminal part 3 by means of the internal lead fastening screw 303. Hereby, when fastening it with a driver 7, since both hands can be used effectively, the fastening of the fastening screw 303 becomes very simple and easy work.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an internal terminal connection device for a so-called surface-mount/surface-connection type device in which the entire device is mounted so as to protrude from the front of the mounting surface. .

[Conventional technology]

Figures 6 to 9 show, for example, the instrumentation for transactions in the case of time-of-day transactions between large-scale customers of □□□ warehouses or higher and special high-voltage customers and single-power companies. The time zone time switch to be controlled is T5, and a typical instrument system is T5, which controls a plurality of instruments, as shown in FIG.

In the illustration of Kowara, l is the outer box part, and there is a latch 1 on the bottom side.
01, a hinge 1 on the front side for connecting and connecting a cover 2 (to be described later), and a lock 103. Reference numeral 2 denotes a cover item that can be opened and closed on the front side of the outer box part 1, and is provided with a transparent window 201 and a hinge 202.

Reference numeral 3 denotes a connection terminal section provided on the mounting surface side of the outer box section 1 and located at the lower position of the left and right gauges that are connected in combination with other instruments shown in Figure 6. It has a lead tightening screw 3. This connection terminal [
3 requires the same number of terminal fittings 301 having terminal holes surrounded by insulating material, and one of the brass materials is placed inside the meter.
1% Has a screw hole for tightening the IJ-do tightening screw (capital) 3. 4 is the light 1 of the connection terminal section above! The terminal cover island that covers the product can be sealed using the sealing screw 401 and sealing protrusion 402 after connecting the outer hole connecting lead MY. It should be noted that the configuration is such that after the seal is sealed, the connection cannot be changed unless the seal is broken. Reference numeral 5 denotes an internal element (details shown), and electrical connection between this internal element and the terminal fitting and the phantom 1 is required. 6 is the instrument mounting surface, like other instruments, upper F95
is attached and fixed using the latch lot, and fixing holes (not shown) provided in the left, right, and lower connection terminal portions 3.

[Problems that the invention attempts to solve]

The conventional i-device (time zone time switch) is constructed as described above, and although the outer box part 1 is deep, the internal element 5 and the terminal metal blade are connected to each other as shown in FIG. 1, use the long screwdriver 7 on the main body to connect the inside 71.
There is a difficult screw tightening work to tighten and fix the 1J-lead tightening screw 303, and the internal lead tightening screw 303 is also a screw made of copper-based material, and the driver body is magnetized, so-called magnetized screwdriver. Since the internal element 5 and the terminal fitting J31 could not be used, the same order was required in terms of workability.

This invention was made to solve the above problems.
To provide an electrical equipment 2 which can easily connect internal elements and terminals by screw tightening work, and can easily connect internal elements.

[Means for solving problems]

The electrical equipment according to the present invention includes a removable bottom cover provided on the outer box portion with an open back side, and after tightening the internal lead tightening screw,
It is designed to be covered with the bottom cover.

[Effect]

In the electrical device according to the present invention, since the outer box hole can be divided into a bottom cover, the connection between the internal element and the terminal fitting can be performed by two screw tightening operations from the equipment (bottom) side. Can securely tighten screws.

〔Example〕

Figures 1 to 4 show examples of this invention.
.about.6 have exactly the same σJ as the conventional device described above. (Capital)
is a bottom cover that is removably installed on the mounting surface side of the outer box @1.
As shown in Fig. 4 when viewed from the back side, the bottom (back) surface of the outer box part l has a large notch at the location corresponding to the receiving terminal capital 3, so that the inner hole lead of the terminal fitting (material) l can be tightened. A large hole is drilled to expose the screw JO3, and after the internal element 5 and the internal lead tightening screw are electrically connected, this bottom cover (2) is covered and the external lead 1 is inserted. By connecting and solidifying the parts through the holes 104, the outer box part 1 similar to that of the conventional device can be constructed.

As shown in the cross-sectional side view of FIG. 8, the outer box part l configured as described above is connected to the connecting lead from the internal element 5 before the bottom cover m is connected to the outer box part l. The terminal fitting blade 1 of the n-Pn connecting terminal portion 3 is electrically connected to the terminal fitting blade 1 by internal lead tightening screw leakage. In other words, by making a hole in the bottom of the outer box part 1, both hands can be used effectively when tightening the internal lead tightening screw with the screwdriver 7, so it is easier to tighten the tightening screw. is a very simple and straightforward task.

〔Effect of the invention〕

As described above, according to the present invention, by providing the removable bottom cover on the back surface (mounting surface side) of the outer box, it becomes easier to tighten the tightening screws, and at the same time, the tightening screws can be easily tightened when tightening them. It is easy to repair the screws when they fall inside the outer box or make a wrong connection, and it also makes it easier to check for loose screws and wiring in the intermediate inspection process.

[Brief explanation of the drawing]

@ Figure 1 is a plan view showing one embodiment of this invention, Figure 2 is a side view thereof, Figure 8 is a side view of the -FA# side, Figure 4 is a back view thereof, and Figure 5 is this. Fig. 6 is a plan view showing a conventional time switch, Fig. 7 is a side view thereof, Fig. 8 is a cross-sectional side view of the same, Fig. 9
The figure is a front view showing the main parts. In the figure, l is the outer box part, 2 is a part of the cover, 3 is the connection terminal, and 5
is an internal element, and TiJ is a bottom cover. In the drawings, the same or corresponding parts are indicated by the same reference numerals.

Claims (1)

[Claims] An electrical device in which the entire device is mounted so as to protrude from the front of the mounting surface, and has a terminal section electrically connected to an internal element on the mounting surface side of the outer box, which can be freely attached and detached using the mounting surface side of the outer box as an opening. An electrical device characterized in that a bottom cover is installed, and the outer ring can be connected by screwing from the back side.