KR100280330B1 - Resistor and manufacturing method thereof - Google Patents

Abstract

The present invention relates to a resistor and a method of manufacturing the same, and more particularly, in a parallel film resistor coated with a cylindrical body to produce a predetermined resistance value, a plurality of cutting grooves formed on the surface of the coating, and the cylindrical A cap body connected to both ends of the sieve by clamping, a primary heat resistant coating applied on the cylindrical body, a coil wound on the primary heat resistant paint, and a secondary heat resistant coating coated to surround the coil and the cap body Characterized in that consists of.

According to the present invention configured as described above, since it is a parallel resistor composed of a film, a coil, and a primary and secondary heat resistant paint, it is possible to reduce the size and the size thereof, and to have the same capacitance since the lead wires are arranged on both sides. Even if it is wound on the tape, it can be supplied to the mounting machine, so the mountability is good. Since the coil and the cap body are connected by the clamping process, the welding process can be omitted, thereby improving workability and productivity, and improving the working environment. have.

Description

Resistor and its manufacturing method {RESISTOR AND MANUFACTURING METHOD THEREOF}

BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a resistor, and more particularly, to a resistor and a method of manufacturing the same, which can improve workability, increase productivity, and greatly improve the working environment by achieving a connection between a coil and a cap body using a clamping process. will be.

1 is a front view showing a conventional general resistor. The resistor is provided on both ends of the cylindrical body 10 made of glass fiber and having a predetermined length, the coil 20 wound around the cylindrical body 10 in one direction, and the cylindrical body 10 on which the coil 20 is wound. It consists of the cap body 30 as a conductor used, and the lead 40 connected to this cap body 30. As shown in FIG. In the drawing, reference numeral 32 denotes a connecting portion 32 to which both ends of the coil 20 and each cap body 30 are connected.

Thereafter, the coil 20 and the cylindrical body 10 are coated with various color synthetic resins representing a predetermined standard and commercialized.

The resistor having such a configuration is soldered after inserting the lead 40 into the slot of the printed circuit board to exhibit a predetermined function as an electronic circuit element. This is possible in the case of low capacity resistors.

2 is a front view showing another example of a general resistor. Parts similar to those in the first conventional example will be described with the same reference numerals. This is a large-capacity resistor, and the lead 40 to be mounted on the substrate is configured at right angles to the cylindrical body 10 as a support. This lead 40 has a bent portion 42 that is bent at the end to be caught by the substrate. This applies to large resistors.

However, in the case of the large-capacity resistor, since the lead 40 is configured at right angles to the cylindrical body 10, which is a heat-resistant coating, it must not be assembled artificially individually when it is mounted in the component mounter. That is, because the reel can not be wound on the tape, the operator had to assemble each one directly.

In addition, since the coil 20 and the cap body 30 are welded to each other using a spot welding machine, for example, a predetermined resistor circuit is formed, the addition of the welding process between the connecting piece 24 and the cap body 30 is a labor cost. Another problem was that the rise and excessive working time significantly worsened the productivity.

In addition, installation costs are added due to the installation of welding equipment, and welding work is recognized as one of the so-called 3D work, and there are other problems in which the workers avoided and the environment of the workplace was not good.

The object of the present invention has been made in view of the above-mentioned problems, and in the manufacture of a resistor, it can be wound on a tape so that it can be directly mounted on a mounting machine, and the workability is improved by achieving a connection between the coil piece and the cap body using a clamping process. It is to provide a film parallel resistor that can increase productivity and greatly improve the working environment.

Another object of the present invention is to provide a method for manufacturing a parallel film resistor that can be wound on the tape so that it can be directly mounted on the mounting machine without a welding process to increase productivity and greatly improve the working environment.

1 is a front view showing a conventional general resistor

2 is a cross-sectional view showing another example of a conventional general resistor.

3a to 3g is a view showing the manufacturing procedure of the flat cement resistor of the present invention,

3A is a front view showing a cylinder as a base material;

3B is a front view showing a state in which a film is formed on a cylinder;

3C is a front view showing a state in which a cutting portion is formed on a film;

3d is a front view showing a state in which the clamping operation is completed in the state of FIG. 3b;

3E is a cross-sectional view showing a state in which the primary heat resistant paint is applied;

3f is a cross-sectional view showing a state of winding a coil on a primary heat-resistant paint,

Figure 3g is a cross-sectional view showing a state in which the secondary heat-resistant coating on the coil and finally completed.

<Brief description of symbols for the main parts of the drawings>

10: cylindrical body 12: film

22: cutting groove 30: cap body

32: clamping part 40: lead

50: primary heat-resistant paint 56: coil

60: 2nd heat resistant paint

Film parallel resistor of the present invention for achieving the above object,

In a film parallel resistor in which a film is coated on a cylinder to produce a predetermined resistance value,

A plurality of cutting grooves formed on the surface of the film,

A cap body connected to both ends of the cylindrical body by clamping,

A primary heat resistant coating applied on the cylindrical body,

A coil wound on the primary heat resistant paint,

It is composed of a secondary heat-resistant coating to cover the coil and the cap body.

Method of manufacturing a resistor of the present invention for achieving the above object,

Applying a film to the cylinder to obtain a predetermined resistance value according to the design value;

Forming a plurality of cutting grooves on the surface of the cylinder;

Installing caps at both ends of the cylindrical body;

Applying a primary heat resistant paint on the cylinder;

Winding a coil on the heat resistant paint,

Comprising the step of applying a secondary heat-resistant paint to surround the coil and the cap body.

Therefore, even if the resistor of the same capacity is a shape in which the lead wires are arranged on both sides, since the lead wire can be wound on the tape and supplied to the mounter, the mountability is good. Since the coil and the cap body are connected by the clamping process, the welding process is omitted. As a result, workability and productivity are improved, and the working environment is greatly improved.

Hereinafter, with reference to the accompanying drawings will be described in detail the film parallel resistor of the present invention and its manufacturing method.

Figures 3a to 3g is a view showing the manufacturing procedure of the flat cement resistor of the present invention, Figure 3a is a front view showing a cylinder as a base material, Figure 3b is a front view showing a state in which a film formed on the cylinder, 3c is a front view showing a state in which a cutting portion is formed on the coating, FIG. 3d is a front view showing a state in which the clamping operation is completed in the state of FIG. 3b, and FIG. 3e is a sectional view showing a state in which the primary heat resistant paint is applied. 3f is a cross-sectional view showing a state in which the coil is wound on the primary heat resistant paint, and FIG. 3g is a cross-sectional view showing a state in which the secondary heat resistant paint is finally completed on the coil.

In this embodiment, the same reference numerals are used for the same elements as those in the prior art, so as to avoid descriptive confusion.

In these figures, reference numeral 12 denotes a coating film on the cylindrical body 10. The cutting groove 22 is formed on the surface of this film 12 using a predetermined cutting mechanism.

Cap bodies 30 are connected to both ends of the cylindrical body 10. The cap body 30 and the cylinder body 10 are connected to each other by a so-called clamping operation. More specifically, since the external force is applied to the outside of the cap body 30 by using a clamping device when the cap body 30 and the cylinder body 10 are connected, the cap body 30 having a circular cross section has a coating film 12. ), The outer side is slightly crushed by the contact with the coated cylinder 10 so that the cap body 30 is deformed, and thus the clamping part 32 is formed to be clamped to the film 12 to be interconnected.

The heat-resistant paint 50 is applied on the cylindrical body 10 coupled in this way, and the coil 56 is wound thereon, and the secondary heat-resistant paint 60 is wrapped around the coil 56 and the cap body 30. Is applied.

Hereinafter, a method of manufacturing the resistor of the present invention will be described with reference to FIGS. 3A to 3F.

First, the cylindrical body 10 which is a predetermined | prescribed base | substrate is prepared, and the film | membrane 12 is coated on this cylindrical body 10 so that a predetermined | prescribed resistance value may be obtained as a design value.

Subsequently, the cap body 30 with the lead 40 attached to both ends of the cylindrical body 10 is assembled. At this time, by applying an external force to the cap 30 by using a clamping device, the outer portion of the cap 30 having a circular cross section in contact with the cylindrical body 10 is slightly crushed to form a clamping portion 32 to form a coating ( 12) and the cap body 30 are interconnected.

Next, as shown in FIG. 3E, the heat-resistant paint 50 is applied onto the cylindrical body 10 on which the coating 12 is coated, and as shown in FIG. 3F, the coil 22 on the heat-resistant paint 50. Wind)

Finally, the film parallel resistor is completed by covering the coil 56 and the cap body 30 with a predetermined secondary heat resistant paint, for example, glass fiber or ceramic rod. .

Since the film parallel resistor of the present invention configured as described above is configured in parallel, the volume can be reduced to obtain a desired resistance value, and the working environment is greatly improved because it undergoes a mechanical process called a clamping operation.

According to the film parallel resistor of the present invention as described above and the manufacturing method thereof, since it is a parallel resistor composed of a film, a coil, and a primary and secondary heat-resistant paint, it is possible to reduce the size and to reduce the size of the lead wire to both sides. Because of the shape of the arrangement, even a resistor of the same capacity can be wound on a tape and supplied to the mounting device, thereby improving the mountability. Since the coil and the cap body are connected by the clamping process, the welding process is omitted, thereby improving workability and productivity. It has the effect of improving and greatly improving the working environment.

Claims (2)

In a film parallel resistor in which a film is coated on a cylinder to produce a predetermined resistance value, A plurality of cutting grooves formed on the surface of the film, A cap body connected to both ends of the cylindrical body by clamping, A primary heat resistant coating applied on the cylindrical body, A coil wound on the primary heat resistant paint, A film parallel resistor, characterized in that consisting of a secondary heat-resistant coating to cover the coil and the cap body. Applying a film to the cylinder to obtain a predetermined resistance value according to the design value; Forming a plurality of cutting grooves on the surface of the cylinder; Installing caps at both ends of the cylindrical body; Applying a primary heat resistant paint on the cylinder; Winding a coil on the heat resistant paint, A method of manufacturing a parallel film resistor, comprising the step of applying a secondary heat-resistant paint to surround the coil and the cap body.

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