JPH0749296Y2 - Mounting structure of terminal block to electrical component box - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a terminal block for connecting a conductor to an electrical equipment box.

[0002]

2. Description of the Related Art Conventionally, a mounting structure of this type is known, for example, as shown in FIG.
74523 publication). This mounting structure has a locking edge 22 that is erected on the surface of an electric component box 21 of an indoor air conditioner (not shown).
The terminal block 24 and the power cord 25 on the secondary side connected to the other end are placed between the mounting member 23 and the mounting member 23, one end 26a is inserted into the hole of the locking edge 22, and the plate-shaped terminal portion 26b at the other end is placed. Is fixed to the upper surface of the mounting member 23 with screws 27, 27.
Thus, the terminal block 24 and the power cord 25 are pressed and attached from above. And the screws 27, 27
The ground wires 28, 28 are connected to the terminal portion 26b by.

[0003]

However, in the above-described conventional terminal block mounting structure, the locking edge 22 is provided on the electrical equipment box 21 with a space of just the width of the two-core terminal block 24 and the power cord 25. And a mounting member 23 are erected, and a terminal block 24 is provided between them.
Since the power cord 25 is placed, there is a disadvantage that a wide three-core terminal block cannot be attached. Further, since the terminal block 24 and the power cord 25 placed are fixed from above by the pressing plate 26 having the terminal portion 26b screwed to the mounting member 23, the screws 27, 27 and the tightening work thereof. However, there is a disadvantage that the cost of the product is increased and the assembling process is complicated.

Therefore, an object of the present invention is to pay attention to the fact that the quick joint type terminal block has a groove hole and a positioning projection on the back surface, and by utilizing these, either a two-core or three-core terminal is provided. An object of the present invention is to provide a structure for attaching a terminal block to an electrical component box, which allows the base to be quickly attached to the electrical component box without screwing, which can reduce the cost of the product and simplify the assembly process.

[0005]

In order to achieve the above object, the structure for mounting the terminal block of the present invention on the electrical component box is, as illustrated in FIG. 1 and FIG. And a three-core or two-core quick-joint type terminal block 1 or 2 having projections 6 and 6'for positioning to the electrical equipment box 3, the electrical equipment box 3 is placed with the back surface in contact with the front surface 3a. In addition, it is possible to have a projection 11 that is erected upright on the electrical equipment box 3 so as to abut on both side surfaces 1l and 1r of the three-core terminal block 1 and has an upper inner surface on which convex portions 11 that engage with the upper edges of the terminal blocks 1 and 2 are provided. A pair of flexible side fixing claws 10l and 10r are fitted in the slot 7 on the back surface of the three-core terminal block 1, and the side edge 12a is in contact with the one side fixing claw 10l. The side stopper 12 erected on the electrical equipment box 3 so as to abut the other side surface 2r of the core terminal block 2, and the two terminal blocks 1, Front 1f, 2f of
A front stopper 13 which is erected on the electrical equipment box 3 so as to abut on the electrical equipment box, and a hook portion 14a which engages with the lower rear edges 1b and 2b of the terminal blocks 1 and 2. The rear stopper 14 provided upright on the box 3 and the projections 6 and 6'of the terminal blocks 1 and 2 described above.
Is equipped with fitting holes 15 and 16 provided on the surface 3a of the electrical component box 3.

[0006]

When the three-core quick joint type terminal block 1 is mounted on the electrical component box 3, the hook 14a of the rear stopper 14 of the electrical component box 3 is engaged with the rear end lower edge 1b of the terminal block 1, The projection 6 of the terminal block 1 is fitted into the fitting hole 15 so that the electrical component box 3
The terminal block 1 is pushed between the pair of side fixing claws 10l and 10r. Then, the protrusions 11 on the upper inner surfaces of the side fixing claws 10l, 10r engage with both upper edges of the terminal block 1, and the front stopper 13 abuts on the front surface 1f of the terminal block 1, so that the side stopper 1
2 fits into the slot 7 on the back surface of the terminal block 1 to
Can be quickly mounted on the electrical component box 3 without screwing. The terminal block 1 can be removed from the electrical component box 3 by pushing out the side fixing claws 10l and 10r and pulling out the terminal block 1 upward. On the other hand, when the 2-core quick joint type terminal block 2 is mounted on the electrical component box 3, the lower end 2b of the rear end of the terminal block 2 is engaged with the hook 14a of the rear stopper 14 and the protrusion 6'is fitted. Fitting into the hole 16, one side fixing claw 10l of the electric component box 3 and the side edge 12a of the side stopper 12
Push the terminal block 2 in between. Then, the convex portion 11 of the one side fixing claw 10l engages with the upper edge of the terminal block 2, the front stopper 13 abuts on the front surface 2f of the terminal block 2, and the terminal block 2 is an electrical component. It can be quickly mounted on the box 3 without screws. The terminal block 2 can be removed in the same manner as described above.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the illustrated embodiments. In FIG. 2, the 3-core or 2-core quick joint type terminal blocks 1 and 2 (see FIG. 3) are mounted on an electric component box 3 of an indoor air conditioner (not shown). The three-core terminal block 1 has three holes 4 into the front surface 1f for inserting the ends of the conductors, and three clips 5 on the rear face for inserting the conductors to be connected to the conductors, and tightening the screws. One-touch conductor connection is possible by simply inserting the conductor without the need for. On the flat back surface of the terminal block 1, a projection 6 for positioning is provided.
And a slot 7 for preventing uneven thickness during manufacturing by resin molding, and a through hole 8 for inserting a fixing screw which is not used when the present invention is implemented in the center of the terminal block 1. It is provided. The 2-core terminal block 2 (see FIG. 1 (B) and FIG. 3)
Also, the structure is the same as described above except that the number of holes 4 and the number of clips 5 are two.

On the other hand, on the surface 3a of the electrical equipment box 3 to which the terminal blocks 1 and 2 are attached, a pair of flexible side fixing claws 10l and 10r are provided so as to abut on both side surfaces 1l and 1r of the terminal block 1. The protruding portion 1 which is erected and engages with the upper edge of the terminal block 1 on the inner surface of the upper portion thereof.
1 and 11 are provided. Further, on the surface 3a of the electrical equipment box 3, a two-core terminal block 2 fitted in the slot 7 of the three-core terminal block 1 and abutting the side fixing claw 1l (see FIG. 1 (B)). Side) 2r
The side stopper 12 is erected so that the side edge 12a abuts on it, and the front stopper 13 is erected so as to abut the front surfaces 1f, 2f of the terminal blocks 1, 2. Further, the rear stopper 14 having a hook portion 14a that engages with the lower rear edges 1b and 2b of the terminal blocks 1 and 2 (see FIGS. 1A and 1B) is erected, and the terminal blocks 1 and 2 are Fitting holes 15,1 into which the protrusions 6,6 'on the back of
6 (see FIG. 3).

The terminal blocks 1 and 2 are mounted on the electrical component box 3 having the above structure as follows. First, when the three-core terminal block 1 is attached, as shown in FIG. 1 (A), the hook 14a of the rear stopper 14 of the electrical component box 3 is engaged with the lower end 1b of the rear end of the terminal block 1 and fitted. The protrusion 6 of the terminal block 1 is fitted into the dowel 15 (see FIG. 3), and the terminal block 1 is pushed between the pair of side fixing claws 10l and 10r of the electrical component box 3 as indicated by arrow A. Then, the side fixing claws 10l, 10r bend outward, and the convex portion 11,
11 engages with the upper edges of both sides of the terminal block 1, front stoppers 13 (see FIG. 3) contact the front surface 1f of the terminal block 1, and side stoppers 12 have grooves on the rear surface of the terminal block 1. Fitted in the holes 7, the terminal block 1 can be quickly mounted on the electrical component box 3 without screws. In order to remove the terminal block 1 from the electrical component box 3, the side fixing claws 10l and 10r may be expanded and the terminal block 1 may be pulled out upward. Next, when attaching the two-core terminal block 2, as shown in FIG. 1 (B), the lower end 2b of the rear end of the terminal block 2 is engaged with the hook 14a of the rear stopper 14, and the protrusion 6'is fitted. The terminal block 2 is fitted into the dowel 16 (see FIG. 3) and is pushed between the one side fixing claw 10l of the electric component box 3 and the side edge 12a of the side stopper 12 as indicated by an arrow A. Then, the side fixing claw 10l bends outward, the convex portion 11 on the upper inner surface engages with the upper edge of the terminal block 2, and the front stopper 13
However, by abutting on the front surface 2f of the terminal block 2, the terminal block 2 can be quickly mounted on the electrical component box 3 without screwing. The terminal block 2 can be removed in the same manner as described above. As described above, according to the present embodiment, the pair of side fixing claws 10l and 10r or the side stopper 1 on the electrical component box 3 are provided.
2 and between the front stopper 13 and the rear stopper 14,
Just push in the 3- or 2-core terminal blocks 1 and 2 to quickly fasten the electrical component box 3 without screwing any of the terminal blocks 1 or 2.
Since it is possible to attach the screw to the device, the screw and its tightening work are not required, and the cost of the product and the assembling process can be simplified.

[0010]

As is apparent from the above description, the mounting structure of the 2-core or 3-core quick joint type terminal block of the present invention on the electrical equipment box is such that the upper edge of the terminal block is on the electrical equipment box. A pair of flexible side fixing claws having a convex portion that engages with the upper inner surface and contacting both side surfaces of the three-core terminal block, and fitted with a groove hole on the back surface of the three-core terminal block. And a side stopper whose side edge abuts on one side surface of the two-core terminal block, a front stopper which abuts the front surfaces of both terminal blocks, and a hook part which engages with the rear lower edges of both terminal blocks. Since a rear stopper having a stand is provided upright and a fitting hole into which the positioning projections on the back surfaces of both terminal blocks are fitted is provided, a three-core or two-core terminal block is pushed between these members. Simply, any of them can be quickly attached to the electrical equipment box without screwing, and there is no need for screws and their tightening work. It is possible to simplify the cost and assembly process of the article.

[0011]

[Brief description of drawings]

FIG. 1 is a perspective view showing a procedure for mounting a three-core or two-core terminal block on an electrical component box according to the present invention.

FIG. 2 is a perspective view showing an example of a structure for mounting the terminal block of the present invention on an electrical equipment box.

FIG. 3 is a schematic perspective view showing how to mount a two-core terminal block on the mounting structure.

FIG. 4 is a plan view showing a conventional structure for mounting a terminal block on an electrical equipment box.

[Explanation of symbols]

1 ... 3-core terminal block, 2 ... 2-core terminal block, 3 ... Electrical equipment box,
6, 6 '... Protrusion, 7 ... Groove hole, 10l, 10r ... Side fixing claw,
11 ... Convex part, 12 ... Side stopper, 13 ... Front stopper, 14 ... Rear stopper, 14a ... Hook part, 15, 16 ... Fitting hole.

Claims (1)

[Scope of utility model registration request] 1. A three-core or two-core quick joint type terminal block (1, 2) having a slot (7) and a positioning projection (6, 6 ') on a flat back surface is provided in an electrical equipment box (3). In the mounting structure of the terminal block to be mounted on the electric component box, the three-core terminal block placed on the front surface (3a) of the electric component box (3) with its back surface in contact
The above-mentioned electrical equipment box so that it contacts both sides (1l, 1r) of (1)
A pair of flexible side fixing claws provided upright on (3) and having a convex portion (11) on the inner surface of the upper portion that engages with the upper edge of the terminal block (1, 2).
(10l, 10r) and the slot on the back of the 3-core terminal block (1)
The other side surface (2) of the two-core terminal block (2) fitted to (7) and whose side edge (12a) abuts the one side fixing claw (10l).
r), the side stoppers (12) provided upright on the electrical component box (3) and the front faces (1f, 1f, 2) of the terminal blocks (1, 2).
2f) engages with the front stopper (13) provided upright on the electrical component box (3) so as to abut with the rear end lower edges (1b, 2b) of both terminal blocks (1, 2) The rear stopper (14) that has the hook portion (14a) and is erected on the electric component box (3) and the protrusions (6, 6 ') of the both terminal blocks (1, 2) fit into each other. Electrical equipment box
A structure for mounting a terminal block on an electrical component box, comprising fitting holes (15, 16) provided on the surface (3a) of (3).