CN215118505U

CN215118505U - Sealed waterproof potentiometer

Info

Publication number: CN215118505U
Application number: CN202121428593.3U
Authority: CN
Inventors: 黄裕松
Original assignee: Dongguan Genius Electronic Technology Co ltd
Current assignee: Dongguan Genius Electronic Technology Co ltd
Priority date: 2021-06-25
Filing date: 2021-06-25
Publication date: 2021-12-10
Anticipated expiration: 2031-06-25

Abstract

The utility model discloses a waterproof potentiometre of sealed, including rubber coating switch plate, the switch contact piece, the type thing, a terminal, the carbon piece, plastic shell and axle center, the carbon piece presss from both sides between rubber coating switch plate and plastic shell, the terminal is connected in one side of carbon piece, the terminal outwards extends, the switch contact piece is located the inside of rubber coating switch plate, the lower extreme of type thing is provided with the switch bump, switch bump and switch contact piece elastic connection, the middle part of plastic shell is passed in the axle center, the lower extreme and the type thing joint in axle center, the border of rubber coating switch plate is provided with the riveting hole, the border of plastic shell is provided with the riveting post, the riveting post inserts in the riveting hole. This waterproof potentiometre of sealed belongs to embedded structure, and this kind of structure can be effectual waterproof dustproof for the potentiometre can be used for a long time under abominable environment, also can not appear the problem in the function, has certain effect to security and stability.

Description

Sealed waterproof potentiometer

Technical Field

The utility model relates to a technical field of components and parts especially relates to a sealed waterproof potentiometer.

Background

With the development of the modernization process, potentiometers are widely used in various fields. Some potentiometers are used in a humid environment but the existing potentiometers on the market cannot achieve dustproof and waterproof due to the mechanical structure, and the potentiometer fails due to the fact that water, gas and other liquid substances invade the inside of the potentiometer.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an aim at: provides a sealed waterproof potentiometer, which is used for solving the problems in the prior art.

To achieve the purpose, the utility model adopts the following technical proposal:

a sealed waterproof potentiometer comprises an encapsulated switch plate, a switch contact piece, a molded object, a terminal, a carbon piece, a plastic shell and an axis, wherein the carbon piece is clamped between the encapsulated switch plate and the plastic shell, the terminal is connected to one side of the carbon piece, the terminal extends outwards, the switch contact piece is located inside the encapsulated switch plate, a switch salient point is arranged at the lower end of the molded object and elastically connected with the switch contact piece, the axis penetrates through the middle of the plastic shell, the lower end of the axis is clamped with the molded object, a riveting hole is formed in the edge of the encapsulated switch plate, a riveting column is arranged at the edge of the plastic shell, and the riveting column is inserted into the riveting hole.

As a preferable technical scheme, a folding element is installed inside the rubber-coated switch board, a mounting hole is formed in the folding element, a mounting protrusion is arranged at the upper end of the molded object, the mounting protrusion penetrates through the mounting hole, and the upper end of the folding element is elastically connected with the carbon sheet.

As a preferred technical scheme, the upper end of the shaft center is provided with anti-skid grains.

As a preferred technical scheme, the upper end of the plastic shell is also provided with a connecting column, and the outer side of the connecting column is provided with connecting threads.

As a preferable technical solution, the number of the riveting holes and the number of the riveting columns are four.

As a preferred technical solution, a screw is disposed on the carbon sheet, and the screw penetrates through the carbon sheet and then is connected to the terminal.

The utility model has the advantages that: the utility model provides a waterproof potentiometre of sealed, this waterproof potentiometre of sealed belongs to embedded structure, and this kind of structure can be effectual waterproof dustproof for the potentiometre can be used for a long time under abominable environment, also can not appear functional problem, has certain effect to security and stability, is suitable for on the product that needs use under humid environment such as humidifier, electric tool.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is an overall structural view of a sealed waterproof potentiometer according to an embodiment;

fig. 2 is an internal structural view of a sealed waterproof potentiometer according to an embodiment;

fig. 3 is an exploded view of a sealed watertight potentiometer according to an embodiment.

In fig. 1 to 3:

1. coating a switch board with rubber; 2. a switch contact piece; 3. a former; 4. a terminal; 5. a carbon sheet; 6. a plastic shell; 7. an axis; 8. switching the salient point; 9. riveting holes; 10. riveting columns; 11. folding the rotor; 12. mounting holes; 13. mounting a boss; 14. anti-skid lines; 15. connecting threads; 16. and (4) screws.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

As shown in fig. 1 to 3, in the present embodiment, a sealed waterproof potentiometer includes an encapsulated switch board 1, a switch contact piece 2, a mold 3, a terminal 4, a carbon piece 5, a plastic housing 6 and a shaft 7, the carbon sheet 5 is clamped between the rubber-coated switch board 1 and the plastic shell 6, the terminal 4 is connected to one side of the carbon sheet 5, the terminals 4 extend outwardly, the switch contact blade 2 is located inside the encapsulated switch board 1, the lower end of the model object 3 is provided with a switch salient point 8, the switch salient point 8 is elastically connected with the switch contact piece 2, the axle center 7 passes through the middle part of the plastic shell 6, the lower end of the axle center 7 is clamped with the molded object 3, the edge of the rubber-coated switch board 1 is provided with a riveting hole 9, the edge of the plastic shell 6 is provided with a riveting column 10, and the riveting column 10 is inserted into the riveting hole 9.

During installation, the terminal 4 is installed on the carbon sheet 5, the shaft center 7 penetrates through the plastic shell 6 and then is assembled with the molded object 3, the switch contact piece 2 is located between the molded object 3 and the rubber-coated switch board 1, when the plastic shell 6 is assembled with the rubber-coated switch board 1, the rivet column 10 is riveted in the rivet hole 9, the whole structure is sealed and waterproof, when the switch is operated, the shaft center 7 is rotated, the molded object 3 is driven to rotate by the shaft center 7, the switch salient point 8 can shift the switch contact piece 2, and the switch contact piece 2 can conduct the terminal 4 to achieve the switch function of a potentiometer.

The rubber-coated switch board is characterized in that a folding element 11 is arranged inside the rubber-coated switch board 1, mounting holes 12 are formed in the folding element 11, mounting protrusions 13 are arranged at the upper end of the molded object 3, the mounting protrusions 13 penetrate through the mounting holes 12, and the upper end of the folding element 11 is elastically connected with the carbon sheet 5.

When the shaft center 7 is rotated, the shaft center 7 can also drive the folding element 11 on the molded object 3 to rotate, the folding element 11 can conduct the carbon film and the silver film on the carbon sheet 5, the positions of the folding element 11 contacting the carbon film and the silver film are different, and the resistance values output from the terminals 4 are also different, so that the function of changing the resistance values of the point positions is achieved.

The upper end of the axle center 7 is provided with anti-skid grains 14, so that the axle center 7 can be rotated more conveniently.

Moreover, the upper end of the plastic shell 6 is also provided with a connecting column, the outer side of the connecting column is provided with a connecting thread 15, and the number of the riveting holes 9 and the number of the riveting columns 10 are four.

A screw 16 is arranged on the carbon sheet 5, and the screw 16 penetrates through the carbon sheet 5 and then is connected with the terminal 4.

It should be noted that the above embodiments are only preferred embodiments of the present invention and the technical principles applied, and any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention.

Claims

1. The sealed waterproof potentiometer is characterized by comprising an encapsulated switch plate, a switch contact piece, a molded object, a terminal, a carbon piece, a plastic shell and an axis, wherein the carbon piece is clamped between the encapsulated switch plate and the plastic shell, the terminal is connected to one side of the carbon piece, the terminal extends outwards, the switch contact piece is located inside the encapsulated switch plate, a switch salient point is arranged at the lower end of the molded object and elastically connected with the switch contact piece, the axis penetrates through the middle of the plastic shell, the lower end of the axis is clamped with the molded object, a riveting hole is formed in the edge of the encapsulated switch plate, a riveting column is arranged at the edge of the plastic shell, and the riveting column is inserted into the riveting hole.

2. The sealed waterproof potentiometer according to claim 1, wherein the encapsulated switch board is internally provided with a folding element, the folding element is provided with a mounting hole, the upper end of the molded object is provided with a mounting protrusion, the mounting protrusion penetrates through the mounting hole, and the upper end of the folding element is elastically connected with the carbon sheet.

3. The sealed, waterproof potentiometer according to claim 1, wherein the upper end of the shaft is provided with anti-slip threads.

4. The sealed water-proof potentiometer according to claim 1, wherein a connection column is further provided at the upper end of the plastic housing, and a connection thread is provided at the outer side of the connection column.

5. The sealed water-proof potentiometer according to claim 1, wherein the number of the riveting holes and the number of the riveting columns are four.

6. The sealed, waterproof potentiometer according to claim 1, wherein a screw is disposed on the carbon plate and connected to the terminal after passing through the carbon plate.