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Heat-dissipating moisture-absorbing carbon-film potentiometer

A carbon film potentiometer and carbon film plate technology, applied in the field of potentiometers, can solve the problems of poor moisture resistance and heat dissipation, high noise of carbon film potentiometers, etc., achieve stable and reliable performance, overcome moisture resistance, poor heat dissipation, and overcome large noise Effect

Inactive Publication Date: 2014-09-03
常州市零伍壹玖电子有限公司
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Problems solved by technology

[0003] The technical problem mainly solved by the present invention is to provide a heat-dissipating and moisture-absorbing carbon film potentiometer, which can solve the problems of high noise, moisture resistance and poor heat dissipation of the carbon film potentiometer, so that the performance of the carbon film potentiometer is stable and reliable

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Embodiment Construction

[0012] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0013] see figure 1 , the embodiment of the present invention includes:

[0014] A heat-dissipating and moisture-absorbing carbon film potentiometer, comprising: a base 1, a carbon film plate 2, an aluminum ring 3, a heat-dissipating carbon ring 4, a moving contact piece 5 and a fixed contact piece 6, and the carbon film plate 2 is fixed on the On the base 1, the carbon membrane plate 2 is provided with the aluminum ring 3 and the heat dissipation carbon ring 4, and the aluminum ring 3 and the heat dissipation carbo...

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Abstract

The invention discloses a heat-dissipating moisture-absorbing carbon-film potentiometer. The heat-dissipating moisture-absorbing carbon-film potentiometer comprises a base, a carbon-film plate, an aluminum ring, a heat dissipating carbon ring, a movable contact and fixed contacts; the carbon-film plate is fixed on the base; the aluminum ring and the heat dissipating carbon ring are arranged on the carbon-film plate; the aluminum ring and the heat dissipating carbon ring both are embedded in the carbon-film plate; a micro air hole is formed in the heat dissipating carbon ring; the movable contact and the fixed contacts are connected to the carbon-film plate; the movable contact is arranged at the lower end of the central position of the carbon-film plate; a conducting film is arranged between the movable contact and the carbon-film plate; the fixed contacts are arranged at the two sides of the movable contact. Through the mode, the heat-dissipating moisture-absorbing carbon-film potentiometer solves the problems of high noise and poor heat dissipation and moisture absorption properties of the carbon-film potentiometer, and is compact and reasonable in structure, and stable and reliable in performance.

Description

technical field [0001] The invention relates to the field of potentiometers, in particular to a heat dissipation and moisture absorption carbon film potentiometer. Background technique [0002] The resistor body of the carbon film potentiometer is made of ground carbon black, graphite, quartz and other materials coated on the surface of the substrate. The process is simple and it is the most widely used potentiometer at present. It is characterized by high resolution, good wear resistance and long service life. However, the traditional carbon film potentiometer still has great shortcomings, such as current noise, large nonlinearity, poor moisture resistance and resistance stability, resulting in a short service life. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a heat dissipation and moisture absorption carbon film potentiometer, which can solve the problems of high noise, moisture resistance and poor heat d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01C10/00H01C1/08
Inventor 林伟良
Owner 常州市零伍壹玖电子有限公司
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