JP2000173694A - Terminal block - Google Patents

Abstract

PROBLEM TO BE SOLVED: To protect electrical equipment such as a breaker and a household electrical appliance from lightning surge current and to allow replacement of a printed circuit board or a surge-absorbing element, in the case of breakage of the surge-absorbing element so as to dispense with replacement of a terminal block itself. SOLUTION: This terminal block 1 is provided with three-pole primary side terminal parts 2 and three-pole secondary side terminal parts 3, which are connected to each other via copper bands 4, and is constructed of a base 6 provided with partition walls 5 arranged between the copper bands 4 and in both ends of the copper bands 4, while the copper bands 4 are mounted and fixed to copper band installation parts 7 in the base 6. On the inside side face of the base 6, base board mounting parts 8 are arranged in proper positions below the copper band installation parts 7 for mounting a printed circuit board 9 to the base board mounting parts 8. In the copper band installation parts directly below the respective copper bands 4, insertion holes 11, which are equal to conductive pins 10 in number, for inserting the conductive pins 10 raised in the printed circuit board 9 are bored.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a terminal block installed on a distribution board or the like.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a terminal block 21 has at least a plurality of primary side terminal portions 22 and secondary side terminal portions 23, and a primary side terminal portion 22 and a secondary side terminal portion 23 are provided. Terminal 23
Are connected by copper strips 24, and are composed of a base 26 having partitions 25 between the copper strips 24 and at both ends of the copper strips 24,
There was no printed circuit board (not shown) detachably formed on the base 26 or a device provided with a surge absorbing element (not shown).

[0003]

Therefore, when a lightning surge current enters the electric circuit, there is a risk that electric devices such as breakers and household appliances connected to the electric wires may be broken. Has a surge absorbing element on the printed circuit board, but if the surge absorbing element is destroyed by a lightning surge current, it is difficult to replace only the surge absorbing element. There was a drawback.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional terminal block, an object of the present invention is to provide various types of electric equipment from a lightning surge current before the lightning surge current enters electric equipment such as a breaker or a home electric appliance. It is intended to provide a terminal block that can protect and further replace a printed circuit board or a surge absorbing element even when the surge absorbing element is broken and that does not require replacement of the terminal block itself. A terminal having a terminal part on the side and a terminal part on the secondary side, a terminal part on the primary side and a terminal part on the secondary side are connected by a copper band, and a base provided with partitions between copper bands and at both ends of the copper band. In the above terminal block, a removable printed board is provided on the base below the copper strip, and a conductive member capable of contacting or connecting to the copper strip is provided on the printed board.

Another problem is that a surge absorbing element is provided on a printed circuit board.

[0006]

According to the terminal block of the present invention, a detachable printed board is provided on the base below the copper strip, and the printed board is a conductive member capable of contacting or connecting to the copper strip. Is provided, the printed circuit board can be replaced, and the terminal block can be reused.

According to the terminal block of the second aspect, the provision of the surge absorbing element on the printed circuit board can protect electrical equipment such as a breaker and a home electric appliance from a lightning surge current.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a terminal block according to the present invention will be described with reference to FIGS.

The terminal block 1 has a three-pole primary terminal part 2 and a secondary terminal part 3, and the primary terminal part 2 and the secondary terminal part 3 are connected by a copper strip 4. And a base 6 provided with partition walls 5 between the copper strips 4 and at both ends of the copper strip 4, and the copper strip 4 is placed and fixed on the copper strip installation section 7 of the base 6. Further, a board mounting portion 8 can be provided at an appropriate position on the inner side surface of the base 6 below the copper band mounting portion 7, and a printed circuit board 9 can be mounted on the board mounting portion 8. Further, in the copper band setting portion 7 immediately below each copper band 4, insertion holes 11 for inserting the conductive pins 10 erected on the printed circuit board 9 are formed by the number of the conductive pins.

The printed circuit board 9 includes a surge absorbing element 12
Are attached, and the foot of the surge absorbing element 12 is connected to the conductive pin 10 via the pattern wiring.

To mount the printed circuit board 9 on the base 6, a screw 14 is inserted through a screw insertion hole 13 formed at an appropriate position of the printed circuit board 9 facing the board mounting portion 8.
Further, the screw 14 is screwed to the substrate mounting portion 8. At this time, the tips of the conductive pins 10 are inserted through the insertion holes 11 and come into contact with the back surfaces of the copper strips 4.

Since the surge absorbing elements 12 are connected between the copper strips 4 by the terminal block 1, even if a lightning surge current enters the electric circuit, the surge absorbing elements 12 can be used to connect an electric device such as a breaker or a home appliance. Can be protected.

Further, even when the surge absorbing element 12 is destroyed by the lightning surge current, the terminal block 1 can be reused simply by removing the printed circuit board 9 and replacing the surge absorbing element 12 or the printed circuit board 9.

In this embodiment, the semiconductor mounted on the printed circuit board is not limited to the surge absorbing element.
For example, a light emitting diode may be provided to display the energized state.

The copper strip 4 and the printed circuit board 9 may be connected not only by the conductive pins 10 but also by, for example, wires 15 as shown in FIG. 3 and may be changed as appropriate without departing from the spirit of the present invention. .

In the case of connection by the electric wire 15, there are a method of soldering the electric wire 15 and the copper strip 4, a method of providing a crimp terminal at the tip of the electric wire 15 and screwing it to the back surface of the copper strip 4.

The method of attaching the printed circuit board 9 to the base 6 is not limited to the attachment using the screws 14, but the insertion piece 1 is inserted into the board attaching portion 16 as shown in FIG.
Alternatively, a method of attaching the printed circuit board 9 by inserting the printed circuit board 7 may be used, and may be appropriately changed without departing from the gist of the present invention.

[0018]

As described above, the terminal block according to the present invention has at least a plurality of primary terminal parts and secondary terminal parts, and the primary terminal parts and the secondary terminal parts In a terminal block which is connected by a copper strip and comprises a base provided with partitions between copper strips and at both ends of the copper strip, a detachable printed board is provided below the copper strip on the base, and the printed board has a copper strip. By providing a conductive member that can be contacted or connected to the terminal, there is an excellent effect that the printed circuit board can be replaced and the terminal block can be reused.

The provision of the surge absorbing element on the printed circuit board also has the effect of protecting electrical equipment such as breakers and home appliances from lightning surge current.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a terminal block according to the present invention.

FIG. 2 is a sectional view showing a terminal block according to the present invention.

FIG. 3 is a sectional view showing a modified embodiment of the present invention.

FIG. 4 is a perspective view showing a conventional terminal block.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Terminal block 2 Primary side terminal part 3 Secondary side terminal part 4 Copper band 5 Partition wall 6 Base 7 Copper band installation part 8 Board mounting part 9 Printed circuit board 10 Conductive pin 11 Insertion hole 12 Surge absorption element 13 Screw insertion hole 14 screws

Claims (2)

[Claims] 1. A semiconductor device comprising: at least a plurality of primary terminal portions and a secondary terminal portion; wherein the primary terminal portion and the secondary terminal portion are connected by a copper band; And a base provided with partition walls at both ends of the copper band, wherein a detachable printed board is provided below the copper band on the base, and the printed board is in contact with or connected to the copper band. A terminal block provided with a possible conductive member. 2. The terminal block according to claim 1, wherein a surge absorbing element is provided on the printed circuit board.