JPH043449Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a varistor terminal block that is provided with a detachable varistor that absorbs surges caused by lightning or the like.

``Problems to be solved by conventional technology and ideas'' Varistors are used by attaching them to terminals to absorb surges from lightning and other sources.

As shown in FIG. 5, the varistor 101 has two protruding leads 102, 102 connected to terminals. There are various types of varistors 101 with different sizes.
The spacing of 2,102 varies.

When attaching the varistor 101 to the terminals 103, 103, as shown in FIG.
This is done by fitting the leads 102, 102 into the notches 104, 104, respectively, and pressing them with pressing pieces 105, 105. Note that reference numerals 106 and 106 are screw holes. If the distance between the leads 102, 102 of the varistor 101 to be installed is larger or smaller than the distance between the notches 104, 104 of the terminals 103, 103, the distance between the leads 102, 102 may be reduced or formed (bended) to a large extent. and adjust the distance between the leads 102 and 102 to the terminal 10.
This is done after matching the spacing between the notches 104, 104 of No. 3,103. So any barista 1
01, that is, leads 102, 102
Even if the distance between the varistors 10 and 10 is different,
There is a need for a terminal block that can be attached to terminals 103, 103 without forming the leads 102, 102 of one terminal.

"Means for Solving the Problem" Therefore, in view of the above circumstances, the present invention provides a method for connecting any varistor without forming the leads of the varistor, even if the lead spacing is different. In order to be able to be attached to the terminal, a support plane is formed on the terminal in the same direction as the plane containing the two leads of the varistor to be attached, and is large enough to abut even a varistor with the longest lead spacing, and the support plane is A pressing piece is provided to sandwich the lead in opposition to the lead.

"Operation" The two leads of the varistor are held between the support plane and the pressing piece.

"Example" The present invention will be described in detail based on a specific example shown in FIGS. 1 to 4.

Two terminals 3, 3 are supported side by side on support pieces 2, 2 on one side of the terminal block 1. This terminal 3,
3 has guide grooves 4, 4 carved on the side surface that abuts one surface of the terminal block 1, and washers 7, 7 connecting the horizontal pieces 5, 5 and the vertical pieces 6, 6 are connected to the vertical pieces 6. , 6 are fitted into the guide grooves 4, 4 so as to be movable up and down, and are biased upward by a coil spring (not shown). Horizontal pieces 5, 5 of washers 7, 7 have terminal screws 8,
8 are screwed together, and the lead wire crimp terminal (not shown) is inserted into the screw holes 9, 9 cut in the terminals 3, 3, and then the screwed crimp terminal is connected to the terminals 3, 3 and washer 7. , 7 and the horizontal pieces 5, 5.

On the side where the terminal 3 and other terminals 3 are close to each other, on the side opposite to the side that contacts one side of the terminal block 1, a varistor 12 parallel to one side of the terminal 3 with the longest leads 11 and 11 intervals can be brought into contact with the varistor 12. Support plane 1
3 and 13 are formed. Note that two leads 11, 11 are protruded from the varistor 12, one of which contacts the support plane 13 of one terminal 3, and the other lead 11 contacts the support plane 13 of the other terminal 3. 1
Set it so that it touches 3. Further, pressing pieces 14, 14 having a generally U-shaped cross section and sandwiching the leads 11, 11 facing the supporting flat surfaces 13, 13 are fitted from the lower end side of the supporting flat surfaces 13, 13, and the pressing pieces 14,
The open end of 14 is brought into contact with the supporting planes 13, 13,
The support planes 13, 13 are provided with anti-slip grooves 15, 15.

When installing the varistor 12, its lead 1
1, 11 with supporting planes 13, 13 and pressing pieces 14, 1
Insert it between 4 and 4. The leads 11, 11 of the varistor 12 are connected to the support planes 13, 13 and the pressing piece 1.
It may be inserted in any position between 4 and 14.

In the above embodiment, a case was described in which there are two terminals and support planes are present at two locations, but it goes without saying that the present invention can also be applied to a case where one support plane is formed for one terminal.

"Effects of the Invention" As mentioned above, the present invention provides a support plane for the terminal that is large enough to abut even a varistor with the longest lead spacing in a plane in the same direction as the plane containing the two leads of the attached varistor. Since the pressure piece is provided to sandwich the leads in opposition to the support plane, even if the varistors are of different types, that is, the lead spacing is different, the leads can be formed without forming (bending) them. Installation is possible.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of a specific embodiment of the present invention, Fig. 2 is a side view of the main parts, Fig. 3 is a front view of the terminal block, Fig. 4 is a plan view of Fig. 3, FIG. 5 is a front view showing various sizes of varistors, and FIG. 6 is a perspective view showing a state in which the leads of a conventional varistor are formed and attached. 3...terminal, 11...lead, 12...varistor, 13...support plane, 14...pressing piece.

Claims (1)

[Scope of utility model registration request] A varistor terminal block that allows multiple types of varistors with different lead spacings to be attached to the terminal, where the varistor has the longest lead spacing on a plane in the same direction as the plane containing the two leads of the varistor to be attached. A varistor terminal block is provided with a support plane large enough to come into contact with a lead, and a pressing piece that faces the support plane and clamps a lead.