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Electric resistor with lead wire and manufacturing method thereof

A manufacturing method and technology of resistors, applied in the direction of adding resistors at the lead-out end, manufacturing resistors, resistors, etc., can solve problems such as not being good enough, and achieve the effects of reducing the amount of gas generated and improving reliability

Inactive Publication Date: 2011-07-27
KAO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, in the above-mentioned heat aging, the resistor with leads placed in the glass tube of the mercury lamp reaches a high temperature of about 400°C when the mercury lamp is started, so it is not good enough in terms of suppressing gas generation.

Method used

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  • Electric resistor with lead wire and manufacturing method thereof
  • Electric resistor with lead wire and manufacturing method thereof
  • Electric resistor with lead wire and manufacturing method thereof

Examples

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Embodiment Construction

[0014] Embodiments of the present invention will be described in detail below with reference to the drawings. figure 1 One embodiment of the resistor with leads according to the present invention is shown.

[0015] In the resistor 11 with leads, a conductive thin film 13 made of carbon film is formed on the surface of a cylindrical ceramic base 12 . Cutting grooves 14 for finely adjusting the resistance value are provided on the conductive film 13 . Electrode caps 15 are embedded on both ends of the ceramic substrate 12 and are connected to the conductive film 13 . On the electrode cap 15 , a lead wire 16 is fixed by a welding portion 17 . Here, the electrode cap 15 is formed by forming a copper plating film and a nickel plating film on the surface of iron processed into a cap shape. In addition, the lead wire 16 has a copper plating film formed on the iron wire material.

[0016] As shown in the figure, the resistor 11 with leads does not have an overcoat insulating resin...

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Abstract

The invention provides a resistor with a lead wire which is arranged inside a glass pipe of a mercury lamp, particularly relating to a resistor with a lead wire of which the gas generation quantity is still very low at the temperature of about 400 Celsius degrees when the mercury lamp starts and a manufacturing method thereof; the manufacturing method of the resistor with lead wire is characterized in that: a ceramic basal body(12) has the surface provided with a conduction film(13) and both ends embedded in an electrode cap(15) on which a lead wire(16) is welded, forming the resistor(11) with a lead wire; the resistor is heated to reach the temperature of between 350 and 500 DEG C and kept for form 40 minutes to 5 hours; the heating process of the resistor(11) with a lead wire is conducted in inert gases; the conduction film(13) on the resistor(11) with a lead wire is exposed to the outside.

Description

technical field [0001] The present invention relates to form conductive film such as carbon film on the surface of ceramic matrix, embed electrode cap on the two ends of ceramic matrix, weld lead wire (non-chip) resistor with lead wire on above-mentioned electrode cap, especially relate to Leaded resistors that can be arranged for use inside mercury lamps and methods for their manufacture. Background technique [0002] In the past, resistors with leads were used in the starting circuit arranged in the glass tube of the mercury lamp. In the glass tube of the mercury lamp, a high temperature of about 400°C is formed when it is started, and electricity is supplied to the resistor, so gas is generated from the resistor with leads. When the gas is generated in a large amount, clouding occurs in the glass tube, which adversely affects the starting circuit, thereby hindering the normal starting state. [0003] However, it is known that in a leaded carbon film resistor used in a h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01C7/00H01C17/30H01C17/28H01C17/06
Inventor 高木克己宫泽直俊
Owner KAO CORP
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