JPS58139404A - Method of producing solid resistor - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method of manufacturing a fixed resistor.

Conventionally, winding resistance #14 is generally known as a resistor in the low resistance range, but the winding resistor #14 is made by hand9 by a worker with special skills, so manufacturing is extremely inefficient. The unit price was very high.

Figure 1 shows a conventional otIt resistance range 0 resistor, (1
) is an insulator, and (b) is a ζO insulator (1) 0. Terminals are crimped at both ends. In this way, the kanshi work wraps the crimped insulator (resistance wire opening on υ) around both fists, and this resistance 5I (
3) After the 0 @ end η) is brought into #I contact with the terminal (1) by spot welding or the like, a heat-resistant material (2) is applied to the entire surface and baked. In the low resistance range, the resistance wire (1) used is naturally thick and must be wound with a length of tII or one length.
However, the accuracy of the resistance value is also difficult to obtain.
It was.

In order to deal with such problems, it is an object of the present invention to provide a resistor in the low resistance range with excellent accuracy, efficiency, production cost, and low cost. A roughly U-shaped notch is made intermittently in the length direction of a band-shaped metal plate that has undergone easy surface treatment! At the same time, seven parallel projecting pieces tWh are formed on each notch, and a metal resistor wrap is continuously wound around the pair of projecting pieces on both sides of each notch.
After welding a metal resistance wire to the pair of protruding pieces and coating the surface with heat-resistant synthetic resin paint, etc., the tubes between some of the protruding pieces adjacent to each other are separated.

The following drawings (Figures 2 to 1) show examples of how to apply the actual W14
! Based on Figure 4) I! In Fig. 0 (Ill) is a belt-shaped metal plate such as a mild steel plate that has been subjected to a surface treatment that makes it easy to solder, such as by tinting, and this belt-shaped metal plate 011
By feeding it in the direction of arrow A) in Figure 2, this band-shaped metal plate is intermittently pressed in the direction of arrow A. 1 to II
I Roughly U-shaped notch @Hi parallel notch*s (D
14 III K parallel protruding piece + 141 a4Jt forming tail. At the same time, press I! 1, the one for feeding is punched out by Idoposu 961, the fist is a metal resistance wire,
The protruding piece of the cutout part n sin 1111()- is wound in parallel with the required number of turns, and this is repeated continuously to form the winding element part 07+...t-. Thereafter, the metal resistance wire QFG is welded to the pair of protruding single shafts using the shield fs contact electrode e-bow.

In this welding process, the metal resistance wire m- is made of a steel-nickel alloy, so that the welding reliability is excellent.

The band-shaped metal plate (Ill) to which the winding element part-1 is attached is cut into appropriate lengths and sent to the painting process shown in Fig. 8. It is an L-shaped holder that receives both ends of an element chain with a large number of tightening element parts If+..., and a large number of element parts can be received at the same time by this holder.
is a paint vessel that contains insulating paint (A) made of heat-resistant synthetic resin, and this coating @ # is the best in the vessel? # The entire surface of each winding element part is coated by immersing all of the above-mentioned multiple elements in the paint 4 at the same time and then taking them out,
After that, the applied paint is assimilated by heat curing etc.
In addition to insulation, this protects the winding index 1η.

The winding element parts a through which have been painted in this way are separated from each other by cutting the mutually connected parts (2) with a press, and become independent products as shown in Fig. 4. (fixed resistor) is formed.

In addition, in Figure 4! ! Two terminals protrude from the limbus. At this terminal @ (to) part, terminal reinforcing lips (1) and (2) are formed in the initial pressing process. Also, a marking part 4 is displayed on the surface of the paint S@, and this mark t' is continuously stamped after the paint baking is completed.
It is something that will be decoded.

The method of manufacturing a constant resistor of the present invention can be used in dormitories as described above, and the fixed resistor can be provided at low cost by a method that allows continuous production, which is optimal for mechanization. In particular, winding a thin resistance wire in parallel around a pair of protruding pieces makes it possible to produce a single resistor with a low resistance range, which was difficult to do with conventional wire winding work, and the accuracy of the resistance value is also stable.

ya Figure rlAD @ Simple explanation Figure 1 is a partially cutaway perspective view of a conventional resistor, Figures 2 to 4
1 shows an example of the implementation of the present invention, FIG. 2 is a perspective view showing the working state [I] of welding the winding element part, and FIG. 8 shows the painted state 11.
FIG. 4 is a perspective view showing the finished product.

(Ill... band-shaped metal plate, @ force... press, fist,
...Notch, -4...Protruding piece, Side...Metal resistance wire,
-1... Winding element part, fll... Thief bath contact electrode, -
...-Element part, (2)...Paint content, (2)...Insulating paint, -...Painting N, @...Terminal, (2)--
Marking Department Agent Yoshihiro Morimoto

Claims (1)

[Scope of Claims] L Compliment %NIt for easy soldering due to soldering, etc.
In the band-shaped metal plate that has been applied, notches are intermittently formed in a substantially U-shape in the length direction, and central protruding pieces parallel to 5% are formed on both sides of the cutout. The metal resistance wire is continuously wound, I! Metal resistance against the -110 protruding piece -〇1111. A method of manufacturing a constant resistance, which separates a pair of adjacent protruding pieces lfi after carrying out a surface theory using a 11-year-old fat material. h41I using steel-nickel association as the metal resistance wire
Request for permission - I! A method for manufacturing a fixed resistor according to item 1. Tortoise metal resistance wire and II island piece and meeting V-fufu I! ! By*
**Fixed resistor-011 according to claim 1
1111 method. Book Claim Wk1 in which a reinforcing lip is formed on the protruding piece
Method for manufacturing the constant resistance S described in section O.