CN202816518U

CN202816518U - Potentiometer

Info

Publication number: CN202816518U
Application number: CN 201220442811
Authority: CN
Inventors: 严伟
Original assignee: NINGBO HUAYU ELECTRONIC CO Ltd
Current assignee: NINGBO HUAYU ELECTRONIC CO Ltd
Priority date: 2012-08-31
Filing date: 2012-08-31
Publication date: 2013-03-20
Anticipated expiration: 2022-08-31

Abstract

The utility model provides a potentiometer and belongs to a basic electrical element. The potentiometer comprises a rotating shaft, a shaft sleeve, an electric brush, an outer carbon membrane, an inner carbon membrane, a first lead-out end, a second lead-out end, a third lead-out end and a housing, wherein the rotating shaft is positioned in the inner cavity of the shaft sleeve and is rotatably connected with the shaft sleeve, one end of the electric brush is arranged on the rotating shaft, and the other end of the electric brush is pressed on the outer carbon membrane and the inner carbon membrane, and is connected with the outer carbon membrane and the inner carbon membrane electrically; the housing is made of plastic, and the outer carbon membrane and the inner carbon membrane are arranged in the inner cavity of the housing; the first lead-out end, the second lead-out end and the third lead-out end are installed on the side wall of the housing; the first lead-out end is electrically connected with one end of the outer carbon membrane; the third lead-out end is electrically connected with the other end of the outer carbon membrane; the second lead-out end is electrically connected with the inner carbon membrane; a plurality of riveting columns which are integrated with the housing are uniformly distributed at the periphery of the right end surface of the housing; and a plurality of counter bores into which the riveting columns can be inserted are formed in the left end surface of the shaft sleeve. The potentiometer provided by the utility model has the advantages of high voltage resistance and stable assembling performance.

Description

Potentiometer

Technical field:

The utility model relates to a kind of essential electronic element, specifically is a kind of potentiometer.

Background technology:

Potentiometer is to have three exits (lug plate), resistance can be by the resistive element of certain Changing Pattern adjusting, it generally comprises rotating shaft, axle sleeve and metal shell, rotating shaft is arranged in bore sleeve and is rotatably connected with axle sleeve, metal shell is provided with the bending sheet in aggregates with metal shell, during the assembling metal shell, by bending bending sheet metal shell and axle sleeve are linked together, yet, because shell is metal material, it in use very easily conducts electricity, therefore, above-mentioned potentiometer proof voltage is lower, in addition, above-mentionedly be easy in actual use cause metal shell to deviate from from axle sleeve the mode that metal shell and axle sleeve link together by the bending sheet, it is very not firm to assemble.

The utility model content:

The technical problems to be solved in the utility model is, provides a kind of proof voltage higher, assembles firm potentiometer.

Technical solution of the present utility model is, provide a kind of potentiometer with following structure: comprise rotating shaft, axle sleeve, brush, outer carbon film plate, interior carbon film plate, the first exit, the second exit, three terminal and shell, rotating shaft is arranged in bore sleeve and is rotatably connected with axle sleeve, brush one end is contained in the rotating shaft, the brush other end is pressed on outer carbon film plate and the interior carbon film plate and outer carbon film plate and the electrical connection of interior carbon film plate, wherein, shell adopts plastic material, outer carbon film plate and interior carbon film plate are all in the cased chamber, the first exit, the second exit and three terminal all are contained on the side wall of outer shell, the first exit is electrically connected with outer carbon film plate one end, three terminal is electrically connected with the outer carbon film plate other end, the second exit is electrically connected with interior carbon film plate, circumferentially be evenly equipped with riveting column a plurality of and that shell is in aggregates on the shell right side, the axle sleeve left side is provided with a plurality of counter sinks for the riveting column insertion.

Potentiometer described in the utility model, wherein, the quantity of riveting column is 6, the quantity of counter sink is 6.

After adopting above structure, compared with prior art, the utility model potentiometer has the following advantages: because shell adopts plastic material, plastic material has insulation characterisitic, therefore, the utility model potentiometer proof voltage is higher, in addition, owing to circumferentially be evenly equipped with a plurality of riveting columns on the shell right side, the axle sleeve left side is provided with a plurality of counter sinks that insert for riveting columns, therefore, can adopt the hot riveting mode that riveting column one end is riveted after in riveting column inserts counter sink, thereby shell and axle sleeve are linked together securely, so that the utility model potentiometer and prior art potentiometer are compared assembling is more firm.

The quantity of riveting column is 6, and it is the preferred forms of the utility model potentiometer that the quantity of counter sink is 6.

Description of drawings:

Fig. 1 is the main TV structure schematic diagram of partly cuing open of the utility model potentiometer;

Fig. 2 is Fig. 1 China and foreign countries carbon film plate, interior carbon film plate, the first exit, the second exit and the three terminal right TV structure schematic diagram when being contained on the shell.

Embodiment:

Below in conjunction with the drawings and specific embodiments the utility model potentiometer is described in further detail:

As depicted in figs. 1 and 2, in this embodiment, the utility model potentiometer comprises rotating shaft 4, axle sleeve 3, brush 2, outer carbon film plate 11, interior carbon film plate 12, the first exit 13, the second exit 14, three terminal 10 and shell 1, shell 1 adopts plastic material, circumferentially be evenly equipped with on shell 1 right side 6 with shell 1 riveting column 9 in aggregates, axle sleeve 3 left sides are provided with 6 for the counter sink 8 of riveting column 9 insertions, inserting counter sink 8 interior rear employing hot riveting modes at riveting column 9 rivets riveting column 9 right-hand members, thereby shell 1 and axle sleeve 3 are linked together securely, hot riveting described here is conventional connected mode, so do not repeat them here, rotating shaft 4 is arranged in axle sleeve 3 inner chambers and is rotatably connected with axle sleeve 3, rotating shaft 4 right parts are connected with nut 5, pad 6 and High-Voltage Insulation packing ring 7, brush 2 right-hand members are contained on rotating shaft 4 left sides, brush 2 left ends are pressed on outer carbon film plate 11 and the interior carbon film plate 12 and outer carbon film plate 11 and 12 electrical connections of interior carbon film plate, outer carbon film plate 11 and interior carbon film plate 12 all are contained in shell 1 inner chamber, the first exit 13, the second exit 14 and three terminal 10 all are contained on shell 1 sidewall, the first exit 13 is electrically connected with outer carbon film plate 11 1 ends, three terminal 10 is electrically connected with outer carbon film plate 11 other ends, and the second exit 14 is electrically connected with interior carbon film plate 12.The operation principle of the utility model potentiometer is identical with the operation principle of prior art potentiometer, so do not give unnecessary details at this.

Above-described embodiment is described preferred implementation of the present utility model; be not that scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model all should fall in the definite protection range of the utility model claims.

Claims

1. potentiometer, comprise rotating shaft (4), axle sleeve (3), brush (2), outer carbon film plate (11), interior carbon film plate (12), the first exit (13), the second exit (14), three terminal (10) and shell (1), rotating shaft (4) is arranged in axle sleeve (3) inner chamber and is rotatably connected with axle sleeve (3), brush (2) one ends are contained in the rotating shaft (4), brush (2) other end is pressed on outer carbon film plate (11) and interior carbon film plate (12) is upper and outer carbon film plate (11) and interior carbon film plate (12) electrical connection, it is characterized in that: described shell (1) adopts plastic material, described outer carbon film plate (11) and interior carbon film plate (12) all are contained in shell (1) inner chamber, described the first exit (13), the second exit (14) and three terminal (10) all are contained on shell (1) sidewall, the first exit (13) is electrically connected with outer carbon film plate (11) one ends, three terminal (10) is electrically connected with outer carbon film plate (11) other end, the second exit (14) is electrically connected with interior carbon film plate (12), circumferentially be evenly equipped with riveting column (9) a plurality of and that shell (1) is in aggregates on described shell (1) right side, described axle sleeve (3) left side is provided with a plurality of counter sinks (8) for riveting column (9) insertion.

2. potentiometer according to claim 1, it is characterized in that: the quantity of described riveting column (9) is 6, the quantity of described counter sink (8) is 6.