JPS6016051Y2 - terminal block device - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a terminal block device.

Terminal blocks used for wiring in switchboards, etc. are conventionally known as either (1) a one-piece block with a certain number of terminals, or (2) a terminal block of a certain size and length by connecting the required number of terminal blocks. .

The method (1) above has the disadvantage that it requires different types of terminal blocks depending on the number of wires, so there are many types of terminal blocks.
) does not have these drawbacks, but it does not serve its original purpose of connecting electric wires.

This invention is characterized in that the terminals of the terminal block are basically used as contacts, and a connector can be connected thereto in a freely insertable and detachable manner, in order to significantly break away from the concept of the above-mentioned conventional devices.

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

FIGS. 1 and 2 are a plan view and a side view of the terminal block TB as viewed from the longitudinal direction, respectively, and 1 to 6 are independent unit cases made of insulators.

As shown in Figure 3, each case is symmetrical, upper and lower.
Terminal mounts 7 to 10 are provided divided into stages, and recesses 11 to 14 are formed in each terminal mount as shown by chain lines.

On the other hand, openings 15 and 16 are provided in the lower part.

Further, a recess 17 is formed in the lower terminal mounting bases 9 and 10.

These are integrally molded together with the partition plate 18 from an insulating material.

Insert a hexagonal nut into each of the recesses 11 to 14 of such a unit case, insert a terminal/contactor 19 shaped as shown in FIG. The terminal/contactor 19 is fastened to the terminal mounting bases 7 to 10 by inserting screws into the terminals 20 and 21 and screwing them into the hexagonal nuts.

When using the terminal/contactor 19 in this way,
As shown in FIG. 4A, which shows a cross section taken along line -A', the left and right sections are independent, and the upper and lower sections can form a common electric circuit.

Moreover, since the terminal/contactor 19 can be led out into the openings 15 and 16, the connector (female) 22 at the mouth can be freely inserted and removed.

Therefore, wiring screwed to either one or both of the upper and lower tiers can be connected to the connector 22, and one of them can be used for branch wiring.

On the other hand, when using the terminals 23 and 24 having the shape shown in FIG. 6, the upper and lower tiers are independent, and the left and right terminals can be used as common terminals.

Therefore, in this case, wiring can be led out from the left and right sides of the upper and lower stages, respectively.

Furthermore, when the grounding rod 25 is inserted into the recess 17, the terminal 24 and the grounding rod 25 come into contact, so that when connecting a coaxial cable, etc., the upper row can be used for connecting the core wire of the coaxial cable, and the lower row can be used for connecting the sheath wire.

In that case, the terminals 24 of each unit case can be grounded all at once.

In FIGS. 1 and 2, for example, six unit cases 1 to 6 are connected to the rail 26 to form one terminal block TB.

In this case, insulating barriers 27, 28 are provided at both longitudinal ends and are fixed to the rail 26 by means of fasteners 29 and screws 30.

Note that 31 is a dial plate with terminal symbols attached, and 32 is a transparent resin cover.

As detailed above, the present invention provides the following effects.

(1) It becomes possible to connect a connector so that the terminal can also be used as a contact.

This eliminates the wasteful work of removing wiring when separating panels, rewiring when rearranging panels, and connecting wires during performance verification, which are disadvantages of conventional terminal blocks using screws used in switchboards, etc. This can be resolved by inserting and removing the connector.

(2) Since there are two stages (upper and lower) (two circuit configuration), the number of wiring can be doubled compared to one stage.

This is effective in shortening the length of the terminal block, and the area occupied by the terminal block in the power distribution board can be reduced.

(3) Since unit cases are compatible with terminals (terminals and contacts), unit cases can be made common, reducing the number of types and reducing costs.

(4) The sheath wire of the coaxial cable can be easily grounded all at once using a grounding rod.

[Brief explanation of drawings]

The figures show one embodiment of the terminal block device of the present invention, in which Fig. 1 is a plan view, Fig. 2 is a side view seen from the length direction, Fig. 3 is a side view of the unit case seen from the length direction, and Fig. 4 is a side view of the unit case seen from the length direction. Figure A is A in Figure 1.
-A sectional view taken along line A', the opening is a side view of the connector seen from the length direction, Figure 5 is a side sectional view of the terminal/contactor attached to the unit case, Figure 6 A9 is the same terminal FIG. 1 to 6... Unit case, 7 to 10... Bent terminal mounting base, 15, 16... Opening, 17. Recessed part,
19...Terminal/contactor, 22...Connector, 23, 24...Terminal, 25...
ground rod.

Claims (1)

[Scope of utility model registration request] In cases where the required number of unit cases are connected and used, the terminal/contactor and the terminal mounting base are provided in two stages, upper and lower, symmetrically, and an opening for connector connection is provided at the bottom of the mounting base in the lower stage. A terminal block device with a recess for attaching a grounding rod approximately in the center of the mounting base.