JPH0339889Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a terminal block with a novel structure used for connecting electrical wiring.

[Prior art and its problems]

2. Description of the Related Art Conventionally, various terminal blocks have been proposed as electrical components for orderly connecting a large number of complicated electrical wirings for the convenience of consumers.

By the way, among these types of terminal blocks, for example, a terminal block in which a cover member is disposed on the terminal block body as described in Japanese Utility Model Publication No. 51-58889 or Publication of Utility Model Publication No. 61-6620, etc. It is widely used because it is not only effective in preventing dust from adhering to each wiring connection part (terminal part), but also prevents other equipment, wiring, etc. from coming into contact with the wiring connection part.

However, in a terminal block having such a cover, not only does it take time and effort to attach the cover member to the terminal block body after electrical wiring is connected, but this type of cover member is usually treated as an optional component. Because of the large number of cases, unit cost increases, and furthermore, it is troublesome to assemble the entire terminal block.

[Means for solving problems]

Therefore, this invention has been proposed by protruding pressure walls at predetermined intervals from the lower surface of a plate-like top plate set to a predetermined length, providing terminal forming portions between these pressure walls, and forming each terminal of the plate-like top plate. A terminal block body with a drilled hole of a predetermined diameter at a position corresponding to the terminal block body, and a plate-shaped base with clamping walls set up along both longitudinal edges of the terminal block body when set to the same length as the terminal block body. A terminal block is formed by a terminal unit having a base, terminal fittings with set screws screwed onto the plate base are arranged protrudingly at predetermined intervals to form terminal parts, and these terminal parts are connected to the terminal block. By adopting a configuration in which the terminal block is inserted into the terminal forming part of the main body and the pressure-resistant wall side of the terminal block main body is sandwiched between the clamping walls of the plate-shaped base, the time and effort required to attach the cover is omitted, and manufacturing is simplified due to the structure. cost reduction,
Furthermore, it is intended to facilitate the assembly of the terminal block.

In this case, if a fitting part is formed on the pressure wall of the terminal block body and the clamping wall of the plate-shaped base is attached to this fitting part, the terminal block body and the terminal unit can be more securely held. It can be done reliably.

[Effect]

In the terminal block according to this invention, the terminal part of the terminal unit is attached to the terminal forming part formed by the pressure-resistant wall on the terminal block body, and both sides of the pressure-resistant wall of the terminal block body are clamped and fixed by the clamping walls of the plate-shaped base. By doing so, the terminal block is assembled, and the electrical wiring inserted into each terminal forming part is fixed with a set screw using a jig such as a screwdriver inserted through the hole in the plate-like top plate.

〔Example〕

Next, preferred embodiments of the terminal block according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, the terminal block according to the present invention has a terminal block main body 14 in which terminal forming parts 12 are formed by spaced apart parts of pressure walls 10 provided at predetermined intervals on the lower surface of a plate-like top plate, which will be described later. It basically consists of a terminal unit 18 having a large number of terminal parts 16 protruding from it.

That is, the terminal block main body 14 is made of, for example, PBT.
The pressure walls 10 are made of insulating synthetic resin such as polybutylene terephthalate (polybutylene terephthalate) and are integrally protruded from the lower side of the plate-like top plate 20 set to a predetermined length at predetermined intervals. A terminal forming part 12 is formed between the walls, and a perforated hole 22 having a diameter such that a jig such as a screwdriver can be inserted is formed in the central part of the plate-like top plate 20 corresponding to each terminal forming part 12. Open.

In addition, notch steps 24 are provided on both sides of each of the pressure walls 10, and sleeve walls 26 are formed at the spaced apart portions of the adjacent pressure walls 10. A wiring insertion window 28 is provided in between.

On the other hand, the terminal unit 18 has a plate-shaped base 32 which is set to the same length as the terminal block main body 14 and has clamping walls 30, 30 erected along the entire length of both edges in the longitudinal direction. The foot portions 42 of the terminal fittings 34 are inserted into fitting insertion holes opened at predetermined intervals in the shaped base 32 and set upright, and the set screws 36 are screwed onto these terminal fittings 34 to form a large number of terminal portions 16. It consists of: In this case, the clamping wall 30 of the plate-shaped base 32 is set to a height that allows it to fit into the step portion 24 (see FIG. 5).

In addition, for example, a protrusion 38 and a recess 40 are formed on the top of the clamping wall 30 of the plate-shaped base 32 and the step part 24, respectively, so that the plate-shaped base 32 (terminal unit) and the terminal block main body 14 can be connected. It is also possible to configure the fitting to be performed more reliably (see FIG. 7).

When using the terminal block according to the present invention constructed as described above, first, the foot portions 42 of the terminal fittings 34, each having a set screw 36 screwed thereto, are attached to the fitting insertion holes of the plate-shaped base 32. A large number of terminal parts 16 are arranged upright on the plate-shaped base 32, and then these terminal parts 16 are forcibly inserted into the terminal forming part 12 of the terminal block main body 14 using an appropriate jig, and the terminal parts 16 are inserted into the plate-shaped base 32. The clamping wall 30 is fitted into the stepped portion 24 of the terminal block main body 14. Then, the end of the electrical wiring inserted through the insertion window 28 of each terminal forming part 12 is exposed to the set screw 36, and the set screw 36 is operated with a screwdriver inserted through the hole 22 of the top plate 20 to remove the wiring. It is what makes the connection.

Note that, as is clear from FIG. 4, the terminal fitting 34 forcibly inserted into the terminal forming part 12 at this time has one end secured by one sleeve wall 26 and the other end secured by the other end. Since it is held inside the sleeve wall 26, there will be no inconvenience such as wobbling during wiring connection work, and the holes 2
Even when loosening the set screw 36 with a screwdriver inserted from 2, the fear that the set screw will fall off is avoided.

[Effect of idea]

As mentioned earlier, according to the terminal block according to the present invention, the cover, which is originally handled as an optional component, is formed integrally with the terminal block body, so the trouble of attaching the cover member after wiring connection can be omitted. It is easy to assemble the terminal block body, because all you have to do is attach the terminal part that stands up on the plate-shaped base to the terminal block body, and fit the clamping wall of this plate-shaped base to the stepped part of the terminal block body. Furthermore, since the terminal unit also uses a plate-shaped base, the overall structure is simplified, and the amount of material used can be saved, among other advantages, and its practical effects are extremely large.

Although the preferred embodiment of the terminal block according to the present invention has been described above, the present invention is not limited to this embodiment. Of course, various modifications can be made without departing from the spirit of the present invention, such as providing a groove in the side of the pressure wall to improve pressure resistance by increasing the creepage distance.

[Brief explanation of drawings]

FIG. 1 is a partially omitted front view of a preferred embodiment of the terminal block according to the present invention, FIG. 2 is a partially sectional plan view of FIG. 1, FIG. 3 is a bottom view of FIG. 1, and FIG. 1 is a sectional view taken along the - line in FIG. 1, FIG. 5 is a sectional view taken along the - line in FIG. FIG. 10...Pressure wall, 12...Terminal forming part,
14...Terminal block body, 16...Terminal section, 1
8...Terminal unit, 20...Plate top plate,
22...Drilling hole, 24...Step part, 26...Sleeve wall,
28... Wiring insertion window, 30... Holding wall, 32...
Plate base, 34...Terminal fitting, 36...Set screw,
38...protrusion, 40...recess, 42...foot.

Claims (1)

[Claims for Utility Model Registration] (1) Pressure walls are protruded from the lower surface of a plate-like top plate set to a predetermined length at predetermined intervals, and a terminal forming part is provided between these pressure walls, and the plate-like A terminal block body with holes of a predetermined diameter formed at positions corresponding to the terminal forming portions of the top plate, and holding walls set to the same length as the terminal block body and holding walls erected along both edges in the longitudinal direction. Terminal fittings with set screws screwed onto the plate-shaped base are arranged protrudingly at predetermined intervals to form terminal parts, and these terminal parts are attached to the terminal block main body. What is claimed is: 1. A terminal block characterized by being inserted into a terminal forming part of the terminal block and sandwiching a side surface of a pressure-resistant wall of a terminal block main body with a clamping wall of a plate-shaped base. (2) The terminal block according to claim 1, which has been registered as a utility model and comprises forming a fitting part in the pressure wall of the terminal block main body, and attaching the clamping wall of the plate-shaped base to this fitting part.