JPS6316147Y2 - - Google Patents

Description

[Detailed description of the device] This device attaches the nut to an insulating base after molding, so it has good electrical performance, and also allows the nut to be fixed extremely easily and reliably.It also prevents shoot accidents caused by the tip of the terminal screw. Furthermore, since the terminal insertion legs protrude from the bottom of the insulating base in a staggered manner, when the insertion legs are inserted into a printed circuit board or chassis and connected by soldering, the entire terminal block is fixed extremely stably. In other words, a large hole 4 having a stepped portion 3 is passed through each section 2 of the insulating base 1, and the cross section of the large hole 4a is formed in a non-perfect circular shape, and the cross section is the same as that of the large hole 4a. A shaped nut 5 is accommodated in the large hole 4a and locked to the step 3, a spacer 6 is interposed in the large hole 4a, and an insulating cover 7 is fixed to the insulating base 1 to cover each large hole 4a. death,
In addition, a terminal 12 having a top plate 12a provided with a screw insertion hole 9 and an insertion leg 10 is attached to each section 2 of the insulating base 1, the screw insertion hole 9 and the large and small holes 4 are communicated, and each screw 13 is connected to the screw insertion hole 9. It is inserted into the insertion hole 9 and the small hole 4b, and is screwed onto the nut 5, and the insertion legs 10, 1
0, 10, 10... project from the bottom surface of the insulating base 1 in a staggered manner.

In conventional screw-type terminal blocks, terminals and nuts having female screws are fixed to the terminal block by simultaneous molding or caulking. However, simultaneous molding deteriorates the properties of the plating attached to the terminals and causes the insulating material of the terminal block to flow in, reducing electrical performance. In addition, as shown in Fig. 5, in the case of caulking, a hole a is drilled vertically through each section of the terminal block, and a short tube c protruding from the bottom of the terminal b is inserted into this through hole a. A caulking machine is used from the lower end of the through hole a to caulk and fix the lower edge of the short pipe C. Not only does this require a caulking machine, but it is difficult to manipulate the pressure during caulking, and the base can be broken. This causes problems such as wear and tear and deformation. In addition, since the female screw d is screwed into the short tube c after the terminal is crimped and fixed, chips generated during screwing adhere to the fixed terminal and other places, which deteriorates the performance of the terminal block. a, there is no obstruction between the tip of the connection screw e screwed into the female thread d and the chassis, which is the mounting plate, and there is an extremely high risk of shot. In addition, in the case of the caulking type, if you screw the female screw into the short tube in advance and then attach it to the terminal block, the short tube will deform when caulking and the female screw will become out of order, so install as described above. This requires a great deal of time and effort, and cannot be manufactured at low cost. Furthermore, terminal blocks in which the insertion legs of the terminals protrude from the bottom surface of the insulating base are conventionally known, but generally the insertion legs protrude in one row in the longitudinal direction of the bottom of the insulating base. For example, even if you attach a conventional product to a printed circuit board and connect it by soldering, the terminal block itself will not be securely fixed. Instead, it is necessary to drill through holes at both ends of the insulating base, insert bolts into these holes, and screw them in with nuts. It has no choice but to be fixed to the printed circuit board. Particularly in the case of a terminal block with a large number of sections, it is extremely inconvenient that the terminal block itself cannot be stably fixed to the printed circuit board simply by soldering the wires to the conventional plug-in legs.

This invention solves these inconveniences. Next, the structure of the embodiment will be explained in detail.
A large number of compartments 2, by protruding partition walls 8, 8, 8...
2, 2... are formed, and each section 2 is formed to have a convex cross section as shown in FIG.
Bottomed holes 16, 16 are provided in each bottom surface 16'.
is formed into a thin wall shape, and the central jetty 1a of each section 2 is
A large and small hole 4 is provided that penetrates vertically, and as shown in FIGS. 1 and 4, the large hole 4a has a square cross section, and the small hole
b is formed into a round hole, and the nut is formed into a square cross section so as to fit into the large hole 4a, and this nut 5
A spacer 6 is inserted from the lower opening of the large hole 4a and is locked at the stepped portion 3, and further comprises a metal pipe.
is inserted into the large hole 4a and brought into contact with the lower surface of the nut 5,
Further, an insulating cover 7 made of a thin insulating strip plate is attached to the bottom surface of the insulating base 1 to cover each large hole 4a, and a conductive thin plate is bent at right angles to form a top plate 12a and an insertion leg 10. Terminals 12 are formed, and the top plate 12
A screw insertion hole 9 is provided in the center of the hole 9, and mountain-like spines 11, 11, . At the same time, the upper plate 12a is press-fitted and placed on the upper surface of the central jetty 1a, and the barbs 11, 11... are stuck to the partition walls 8, 8 to fix the terminal 12 to each compartment 2. The insertion legs 10, 10, 10... are made to protrude in a staggered manner as shown in Figures 1 and 4, and the screws 13 are inserted into the screw insertion holes 9 and the small holes 4b, and then screwed into the nuts. It is.

In the figure, reference numeral 14 denotes a protrusion having the same height as the plate thickness of the insulating cover 7, and is used to stably place the terminal block on the chassis (not shown) of the printed circuit board 15, and also to place the terminal block on the insertion leg 10. This is to form a gap between the bottom surface 1' of the insulating base 1 and the printed circuit board 15, etc. so that gas generated when soldering the printed circuit 15', etc., can escape.

Next, to explain how to use this example, the circuit holes 15'' of the printed circuits 15', 15', 15'...
Prepare a printed circuit board 15 with holes 15", 15", 15"... in a staggered pattern, and insert each insertion leg 10 into the circuit hole 1.
5" and connect the terminal block to the printed circuit board 15.
Place each plug-in leg 10 and each printed circuit 1 on top.
5' are soldered, and electric wires (not shown) are connected using screws 13.

In this way, the nut can be attached after the insulating base is molded, rather than being molded at the same time, so there is no deterioration in the plating characteristics of the nut and terminal, and there is no insulating material flowing into the nut, making it extremely electrically efficient. In addition, since the cross section of the large hole is formed into a non-perfect circular shape and the nut is housed in the same shape, the nut will not rotate horizontally even when the screw is screwed in. Since it has a stepped part and a spacer cover, the nut will not fall out vertically, making it possible to fix the nut extremely reliably and easily, and of course, it can be manufactured at a much lower cost than the caulking type. There is no inconvenience of breaking or deforming the insulating base, and since each large hole is covered with an insulating cover, there is no risk of the screw tip and chassis, double-sided printed circuit board, etc. being shot, making it safe. Furthermore, since the plug legs protrude in a staggered manner from the bottom of the insulating base, by connecting each plug leg, you can simultaneously securely and stably fix the terminal block itself to a printed circuit board, etc. It is extremely convenient as it does not require any fixing means.

In addition, if bottomed holes are provided on both sides of each compartment and each bottom is made thin as in the example, the insertion leg can be easily, quickly and reliably penetrated to a predetermined position, and it is also easy to use. The holes that do not have holes are closed at the bottom so that they do not spoil the aesthetic appearance.

[Brief explanation of drawings]

The figures show an example of this invention; Fig. 1 is a partially cutaway plan view with some members removed, Fig. 2 is a front view of the same as above, Fig. 3 is an enlarged sectional view taken along line A-A, and Fig. 4. 5 is a partially cutaway bottom surface with some members removed, and FIG. 5 is a longitudinal sectional front view of the conventional example. 1...Insulating base, 2...Division, 3...Step, 4
...Large and small holes, 4a...Large holes, 4b...Small holes, 5...
... Nut, 6 ... Spacer, 7 ... Insulation cover,
9...screw insertion hole, 10...insertion leg, 12...terminal, 12a...top plate, 13...screw.

Claims (1)

[Scope of utility model registration request] A large and small hole 4 having a stepped portion 3 is passed through each section 2 of the insulating base 1, the cross section of the large hole 4a is formed into a non-perfect circular shape, and a nut 5 having the same shape as the large hole 4a is inserted into the large hole. It is accommodated in the hole 4a and locked to the step 3, and the large hole
A spacer 6 is interposed to the insulating cover 7.
is fixed to the insulating base 1 to cover each large hole 4a, and a top plate 12a with screw insertion holes 9 and an insertion leg 1
0 is attached to each section 2 of the insulating base 1 to communicate the screw insertion hole 9 and the large and small holes 4, and each screw 13 is inserted into the screw insertion hole 9 and the small hole 4b, and screwed into the nut 5. It is attached, and the insert leg is 10.1.
A terminal block characterized in that 0, 10, 10... are made to protrude from the bottom surface of an insulating base 1 in a staggered manner.