JPH0218529Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a terminal block. A terminal block is used when the end of an electric wire is fixed with a bolt or the like and the electric wire is connected to a predetermined circuit on a printed circuit board. FIG. 1 is a partially exploded perspective view schematically showing an example of a conventional terminal block (hereinafter referred to as "conventional product"). Reference numeral 1 denotes a terminal block main body made of a suitable insulating material, and includes, for example, four compartments 1a, 1b, 1c, 1.
d, and a terminal plate 2, a washer 3, a spring washer 4, and a bolt 5 made of copper, for example, are attached to each of the compartments 1a to 1d as shown below. That is, horizontal grooves 12 are formed on the sides of the partition wall 11 to maintain creepage distance, and by inserting both sides of the rectangular terminal portion 21 into the horizontal grooves 12, a terminal board with connecting pins 22 is formed. 2 is locked to the terminal block main body 1. Then, the screw hole 211 opened in the center of the terminal part 21 is made to correspond to the through hole 13 opened at a predetermined location in the terminal block main body 1, and the bolt with the washer 3 and spring washer 4 inserted into the screw hole 211 5 is screwed on.

In conventional products with such a configuration, the connecting pin 22 can be positioned on the front side of the terminal block 1 (the front side in Figure 1), but cannot be positioned on the rear side of the terminal block 1. There is a problem. The present invention was made in order to eliminate this drawback, and its purpose is to provide a terminal block in which the connecting pins can be positioned either on the front side or the rear side of the terminal block 1 as required. It is said that

Hereinafter, embodiments of the present invention will be illustrated and described.

Figure 2 shows the terminal block according to the present invention (hereinafter referred to as “the proposed product”).
FIG. In the figure, reference numeral 10 denotes a terminal block main body made of a suitable insulating material, and the required number of partition walls 11' to maintain creepage distance is, for example, five partition walls 11' provided on the bottom part 70 to form desired four partitions 1a'. 1b', 1c', and 1d' are formed, and a rectangular parallelepiped-shaped raised part 14 is formed in the longitudinal direction of the terminal block main body 10 at the center of the bottom part 70 of each compartment 1a' to 1d'. In the center of the upper surface 141 of the raised part 14, a hexagonal hole 142 with a hexagonal bottom, for example, which has the effect of preventing the nut into which it is fitted, is opened. Locking protrusions 143, 143 are protrudingly provided on both sides of the locking protrusion 143, and the locking protrusion 143 has an inclined side surface and a shape in which the lower end protrudes most outwardly, and the lower end surface and the front side of the raised part 14 and the respective rear surfaces form appropriate acute angles. A square hole 15 having a required shape, for example, a rectangular shape, through which a connecting pin 216 described later can pass, is provided in a portion of the bottom portion 70 that is in contact with the front and rear surfaces of the raised portion 14 . 20 is a terminal plate made of elastic metal, and this terminal plate 20 includes a terminal part 21 formed in a rectangular shape and having a through hole 212 in the center, and one side of the terminal part 21 and It is provided with a T-shaped locking part 213 having a locking piece 214 integrally extending and projecting from each center part on the other side, and one locking part 213 is connected to the locking part 213. It has a connecting pin 216 extending from the portion 213. The number of connection pins 216 may be plural, but in that case, the number of square holes 15 is also the same.
The base end portions of the locking portions 213, 213 are both bent downward at a right angle.

The terminal plate 20 configured as described above is attached to the raised portion 14 in the following manner. That is, after fitting the nut 30 into the hexagonal hole 142, the end of the connecting pin 216 is inserted into the aforementioned hole 15, and the upper part of the raised part 14 is sandwiched from the front and back by the locking parts 213, 213. Terminal board 2 so that
0 above the raised part 14 (see the compartment 1b' portion in the figure). Then, when the terminal part 21 is pushed down, the locking pieces 214, 214 pass over the locking protrusions 143 on the front and rear sides of the raised part 14 by the snap action, and then attach to the lower end of each locking protrusion 143. While being locked, the end of the connecting pin 216 is in a state of protruding downward from the terminal block main body 10 (see the compartment 1c' portion in the figure). As a result, the terminal board 20
does not easily fall off from the raised portion 14. In this state, the through hole 212 corresponds to the screw hole 31 of the nut 30, and the bolt 60 for connecting the external line, through which the washer 40 and the spring washer 50 are inserted, is screwed into the screw hole 31.

As is clear from the above description of the embodiment of the present invention, the connecting pin is extended to one of the T-shaped locking portions extending from both sides of the terminal board. This has the advantage that the connecting pins can be located on either the front or rear surface of the terminal block as required.

[Brief explanation of drawings]

Fig. 1 is a partially exploded perspective view schematically showing the structure of the conventional product, Fig. 2 is a partially exploded perspective view schematically shows the structure of the proposed product, and Fig. 3 is a perspective sectional view illustrating the structure of the proposed product. . 1, 10...terminal block body, 1a, 1b, 1c,
1d, 1a', 1b', 1c', 1d'... compartment, 11,
11'...Partition wall, 12...Horizontal groove, 13...Through hole,
14... Embossed part, 142... Hexagonal hole, 143...
Locking protrusion, 15... Square hole, 2, 20... Terminal board,
21...Terminal part, 212...Through hole, 213...
Locking portion, 214... Locking piece, 215... Lower end portion,
216... Connection pin, 3, 40... Washer, 30...
...Hexagonal nut, 4,50...Spring washer, 5,60...Bolt, 70...Seat.

Claims (1)

[Scope of utility model registration request] A terminal block comprising a terminal block body made of an insulating material, a nut fitted into the terminal block body, a terminal plate locked to the terminal block body, and a bolt screwed into the nut via the terminal block. , the terminal block main body includes a bottom, a plurality of compartments formed by a plurality of partition walls provided on the bottom, and a raised part having a substantially rectangular cross section connected between the compartments. A hole corresponding to the shape of the nut and into which the nut is fitted is formed on the upper surface of the raised part, and locking protrusions are formed on the front and rear surfaces, respectively, while the terminal plate has a terminal portion having a through hole through which the nut passes, and a substantially T-shaped locking portion extending from the front and rear ends of the terminal portion, and the locking protrusion has a The terminal board is attached to the terminal block main body by locking the locking portion, and the one locking portion has a connecting pin extending from the locking portion,
Further, the terminal block is characterized in that a hole through which the connection pin passes is formed in the bottom of the terminal block body.