Slide rheostat for teaching experiments
A sliding rheostat and varistor technology, applied in the direction of sliding contact resistors, resistors, resistor components, etc., can solve the problems of electrical damage, inconvenience, short circuit, etc., and achieve the effect of avoiding damage and sliding smoothly.
Inactive Publication Date: 2020-04-17
何君尧
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Problems solved by technology
[0004] The object of the present invention is to provide a kind of sliding rheostat used for teaching experiment, to solve the problem that the original sliding rheostat proposed in the above-mentioned background technology needs to use an external scale to measure the scale during the experiment, which is inconvenient to use, and in special cases, If the scribe is connected to two upper ends or two lower ends at the same time, a short circuit may occur, causing damage to the electrical appliances
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[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.
[0016] see Figure 1-3 , the present invention provides a technical solution: a sliding rheostat for teaching experiments, including a rheostat body assembly 10, and the rheostat body assembly 10 includes a body 11, a base 12, a wire barrel 14, a sliding piece 16, and a sliding rod 18 And the indicator light 19, the base 12 is fixedly installed on the bottom of the body 11, the wire barrel 14 is located at the inner middle position of the base 12, and is fixed...
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The invention discloses a slide rheostat for teaching experiments, which comprises a rheostat assembly. The rheostat assembly comprises a rheostat body, a base, a wiring cylinder, a sliding sheet, a sliding rod and an indicator light, wherein the base is fixedly installed at the bottom end of the rheostat body, the wiring cylinder is located in the middle of the interior of the base and fixedly connected with the base, and the sliding rod is located above the wiring cylinder and fixedly connected with the base. Scales are arranged on the sliding rod, and thus, a worker can record experimentalresults conveniently in the experiment case; a square hole is formed in the upper end of the sliding sheet, and workers can conveniently observe the experiment scales; the sliding ring is of a circular ring structure, the diameter of the sliding ring is larger than that of the sliding rod, sliding is smoother; an installation base is arranged at the right end in the wiring cylinder, the indicatorlamp is installed on the installation base, when the leads are connected to the upper end or the lower end, the indicator lamp displays and prompts workers; and meanwhile the indicator lamp becomes atemporary electric appliance, and then damage to the electric appliance is avoided.
Description
technical field [0001] The invention belongs to the technical field of teaching aids, and in particular relates to a sliding rheostat used in teaching experiments. Background technique [0002] The sliding rheostat is an important component in the circuit. It can change its own resistance by moving the position of the slider, thus playing the role of controlling the circuit. In circuit analysis, the sliding rheostat can be used as a fixed value resistor or as a A variable value resistor. [0003] In the experiment of the original sliding rheostat, it is necessary to use an external scale to measure the scale, which is inconvenient to use, and in special cases, if the sliding piece is connected to two upper ends or two lower ends at the same time, a short circuit may occur. cause damage. Contents of the invention [0004] The object of the present invention is to provide a kind of sliding rheostat used for teaching experiment, to solve the problem that the original slidin...
Claims
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IPC IPC(8): H01C1/02H01C1/04H01C10/40
CPCH01C1/02H01C1/04H01C10/40
Inventor 何君尧
Owner 何君尧