JPS5833655Y2 - Terminal block electrical appliance locking member - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of an electric appliance locking member of a terminal block of an electric appliance such as a relay or a timer.

Conventionally, as shown in FIG. 1, an electric appliance locking member E is well known in which an electric appliance opening is inserted into a terminal block A and the electric appliance locking member E is locked to the terminal block A by a locking protrusion 2 provided on a locking piece.

By the way, it is common for a large number of electrical appliance ports such as relays and timers to be installed side by side on a control panel, and when removing an electrical appliance port, both the electrical appliance locking members E and H' must be moved outward (indicated by the dotted line). It is necessary to pull out the electrical appliance opening in the P direction while pushing it out with your hands or a screwdriver, which has the disadvantage that it is difficult to pull it out easily.

This idea was made in view of the above-mentioned drawbacks,
A thin wall portion is formed at the base end of the electric appliance locking member E to reduce the elastic force of the electric appliance locking member E in the Q direction, and a hinge structure is formed at the base end of the electric appliance locking member E. When the opening is pulled out from the terminal block A, it is not necessary to open the electric appliance locking member E outward while pulling out the electric appliance opening.

This invention will be described in detail below with reference to embodiments of the electrical appliance locking member of the terminal block.

In FIG. 2 to FIG. 5, 1 is a terminal block, and a terminal plate 2a to which electricity is applied to the low voltage side of the electric appliance 2, for example, DC12V.
The blade holder springs la, la' connected to the lead wires 1b, l
The low-voltage terminal screws 1c and lc' connected at b' and the blade holder springs ld and ld' connected to the commercial power supply side of the electric appliance 2, for example, the terminal plates 2b and 2b' that are energized with AC100V, are connected to the lead wire 1e. , 1e' are connected to the commercial power supply connecting terminal screws lf, lf', and terminal screws I C, I C',
1 f and 1 f' and blade receiving springs 1 a, 1 a', 1 d, and 1 d', which are plug-connected to the terminal board of the electric appliance 2, and provided on the outer surface of the electric appliance 2. ′
A locking piece 5 having a locking protrusion 4 at its tip that engages with the terminal block 1, and a bifurcated fitting piece 6 that fits and locks into the hole 1g and Ig' of the terminal block 1.
, 6', and an electric appliance locking member 8 having a thin wall portion 7 at the base end of the locking piece 5.

Locking portions 6a, 5a' are provided at the ends of the fitting pieces 6, 6', and are configured to engage with the stepped portions 1h, 1h' of the hole 1g (7) of the terminal block 1.

As shown in FIG. 2, it is preferable to form the bottom of the part so that the locking piece 5 opens outward at the thin wall portion 7.

This electric appliance locking member 8 is made of thermoplastic resin and may be formed integrally with the terminal block 1.

Thus, the terminal plates 2a, 2a', 2b of the electrical appliance 2
, 2b' are the blade receiving springs 1 a , 1 a' of the terminal block 1 ,
1 d and 1 d', and the locking protrusion 4 provided on the locking piece 5 of the electric appliance locking member 8 that is integrated or fitted with the terminal block 1 is connected to the outside of the electric appliance 2. It engages with the stepped portions 3, 3' provided on the side surfaces.

As shown in FIG. 5, this stepped portion 3 is sloped so that the inner side becomes deeper, and the locking projection 4 is also sloped to ensure a secure state of engagement.

When removing the electric appliance 2, the locking protrusion 4 of the locking piece 5 is removed from the stepped portion 3 of the electric appliance 2.

Since the locking piece 5 is configured to be inclined outward at the position of the thin wall part in the state of the part, the locking piece 5 is tilted in the x direction, and the electric appliance 2 can be connected again without applying any manual force. There is no risk of engagement.

As described above, according to the present invention, a terminal screw, a blade receiving spring into which a terminal plate of an electric appliance is inserted and connected, and an electric appliance locking piece in which a locking piece is provided with a locking protrusion that engages with the outer surface of the electric appliance. In the terminal block, the locking piece is separate from the terminal block, and a thin wall part is provided at the base end of the locking piece, and a partition plate is provided to separate the low voltage side terminal screw and the terminal screw connected to the commercial power source. Since the electric appliance locking member of the terminal block is characterized in that it can be used for both purposes, when removing the electric appliance 2 from the terminal block 1, the locking piece of the electric appliance locking member 8 is opened outward and the electric appliance 2 and When the electric appliance locking member 8 is released, the locking piece 5 of the electric appliance locking member 8 does not return toward the electric appliance 2, so the locking piece 5 is pushed outward as shown in the conventional example. Since there is no need to remove the electrical appliance 2 while opening the terminal block, the electrical appliance 2 can be easily extracted from the terminal block 1 even when working in a narrow space such as a control panel, which is practically effective. be.

In addition, as shown in Fig. 6, the low voltage terminal screw lc of the terminal block 1
, lc' and the commercial power supply connection terminal screws If, If', by making the partition plate part 9 into an electric appliance locking member 8' integrally formed with the locking piece 5', the commercial power supply connection terminal screw If is set according to the law. , If' and the low-voltage terminal screws 1c, 1c', even if it is necessary to provide a partition plate, there is no need to separately provide a partition plate, so there are advantages such as simplicity.

[Brief explanation of the drawing]

1 to 7 are diagrams for explaining the electric appliance locking member of the terminal block according to this invention, and FIG. 1 is a side view of the conventional example;
Figures 2 to 7 are diagrams showing an embodiment of the present invention, in which Figure 2 is a perspective view of the electrical appliance 2 installed, Figure 3 is an exploded perspective view, and Figure 4 shows a connected state. A schematic diagram, FIG. 5 is a partial sectional view showing the locked state of the electric appliance locking member 8 and the electric appliance 2, FIG. 6 is a perspective view showing another embodiment of the electric appliance locking member, and FIG. FIG. 3 is a partial cross-sectional view showing a fitted state of the electric appliance locking member 8 and the terminal block 1. FIG. 1...Terminal block, 1 a, 1 a', 1 d, 1
d'...Blade holder spring, I C, I C', 1
f, 1 f'...Terminal screw, 2...
Electrical appliance, 3... Step part, 4... Locking protrusion, 5, 5'... Locking piece, 6... Fitting piece, 7 ... Thin wall portion, 8, 8' ... Electric appliance locking member.

Claims (1)

[Scope of utility model registration request] In a terminal block equipped with a terminal screw, a blade receiving spring into which a terminal plate of an electric appliance is inserted and connected, and an electric appliance locking member whose locking piece is provided with a locking protrusion that engages with the outer surface of the electric appliance. , the locking piece is separate from the terminal block and has a thin walled portion at its base end, and also serves as a partition plate for partitioning the low-voltage side terminal screw and the terminal screw connected to the commercial power source. Electrical appliance locking member for terminal block.