CN2175960Y

CN2175960Y - Rheostat device

Info

Publication number: CN2175960Y
Application number: CN 92238317
Authority: CN
Inventors: 左奔
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-21
Filing date: 1992-10-21
Publication date: 1994-08-31
Anticipated expiration: 2002-10-21

Abstract

The utility model discloses a rheostat device of which the appearance is similar to a cylinder. The utility model forms in an entity by the way that an upper cover is screwed on a container, the center of the upper cover is provided with a screw opening with screw threads, a metal rod A is screwed in the screw opening, another screw opening is arranged on one side of the screw opening in the center of the upper cover, and a metal rod B is screwed in the screw opening on the side. The utility model is characterized in that the container is filled with salt solution as resistance material. When the utility model is used, the metal rod A is rotated, and the distance to the metal rod is regulated in order to control the value of electric current and change the brightness of lamplight.

Description

Rheostat device

The utility model is the rheostat that is connected on the various incandescent lamp bulbs, and it plays the light modulation effect, especially is used for changing and controlling the device of light of stage power.

Adopting rheostat to carry out light modulation is the method that in the past always adopted, produce this change resistance and adopted various rare metal alloys and nonmetallic materials, make through various processings, therefore cost is higher, technological process of production complexity, and in use or use of a specified duration, then produce burn out, noise, smolder, situation such as peculiar smell.

In order to address the above problem, though some technology of current China and foreign countries has overcome, production cost is higher, all need consume metal material.

The purpose of this utility model is under the prerequisite that has overcome the problems referred to above, and the big radian of production cost is reduced, and production technology is simple, and equipment investment is little, the economic benefit height.

The purpose of this utility model is achieved in that and adopts the good saline solution of proportioning as resistance material, two leads are linked into respectively on two metal bars (3), (4), be connected with bulb again, rotation screw capping (5), make metal bar A(3) in saline solution to metal bar B(4) by disturbing, promptly produce different resistance, bulb brightness is changed thereupon.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing.

Accompanying drawing 1: the general structure of utility model rheostat device

Fig. 2: the part drawing of the loam cake (1) of utility model rheostat device, it is by metal bar A(3), metal bar B(4), screw capping (5) is formed, screw capping square opening (10) is arranged at screw capping (5) bottom, it is to be enclosed within metal bar A(3) on, be used for rotating metallic rod A(3) swing, thereby control becomes the resistance amount.On the loam cake (1) two holes are arranged in addition, hole wall all has screw thread, and metal bar A(3 is joined in wherein middle this hole), therefore be called metal bar A screw socket (7), this hole, next door is used for assembling metal bar B(4), be called metal bar B screw socket (8).The inwall of loam cake (1) has loam cake screw socket (9).Metal bar A(3) and metal bar B(4) on screw thread (12), (13) are all arranged.

Fig. 3, be the rheostatic container of utility model (2), it mainly is used for adorning the resistance material saline solution, and container screw socket (11) is arranged at container (2) top in addition, twists mutually with loam cake screw socket (9) and closes.

Insert power supply and make electricity from metal bar A(3) by saline solution (6), pass to sheet metal B(4) on, in this process, the resistance effect mainly is at metal bar A(3) by saline solution (6), import metal bar B(4 into) in, saline solution (6) plays the resistance effect when conducting electricity.

Long more according to two metal bar distances, the rule that resistance is big more, the screw capping of rotation (5), make sheet metal A(3) to sheet metal B(4) close, at this moment saline solution (6) conduction distance shortens, and resistance reduces, and bulb is brightened, otherwise, cycle screw capping (5) makes sheet metal A(3) to sheet metal B(4) from far, at this moment saline solution (6) conduction distance increases, resistance is increased, and bulb is deepening thereupon also.

Loam cake of the present utility model (1), screw capping (5) and container (2) they all are to adopt general plastics (polyvinyl chloride) compacting to form, and the size of container is changed by watt level, metal bar A(3) and metal bar B(4) can make or other metal with copper material.

The utility model rheostat device only is applicable to general lighting circuit (alternating current 220V), is not suitable for DC power supply and becomes resistance.

Claims

A kind of rheostat device is characterized in that appearance like a cylinder, and it is 1. to be tightened in container by loam cake 2. to go up, and 7. loam cake centre 1. has a threaded metal bar A screw socket, with metal bar A 3. screw in metal bar A screw socket 7. in; Have a metal bar B screw socket again 8. on loam cake metal bar A screw socket next door 7., with metal bar B 4. screw in metal bar B screw socket 8. in, just constitute an integral body.