阅读说明：本技术 一种简易的原电池原理演示装置 (Simple and easy galvanic cell principle presentation device ) 是由 秦承运 吴少明 于 2018-06-18 设计创作，主要内容包括：本发明涉及科普教育技术领域,尤其涉及一种简易的原电池原理演示装置,包括展柜及设在所述展柜上的台面,在所述台面上设有左手形底板和右手形底板,所述左手形底板的材质为铜,所述右手形底板的材质为铝,在所述左手形底板和右手形底板之间设有电流表,通过导线依次将左手形底板、电流表和右手形底板串联。本发明一种简易的原电池原理演示装置,不使用传统的两种溶液和金属作为展示媒介,以人体作为互动媒介,通过电流表指针的偏转,让观众清楚明了的看到电流的产生,从而深刻了解原电池原理。(The invention relates to the technical field of science popularization education, in particular to a simple primary battery principle demonstration device which comprises a display cabinet and a table board arranged on the display cabinet, wherein a left-hand-shaped bottom plate and a right-hand-shaped bottom plate are arranged on the table board, the left-hand-shaped bottom plate is made of copper, the right-hand-shaped bottom plate is made of aluminum, an ammeter is arranged between the left-hand-shaped bottom plate and the right-hand-shaped bottom plate, and the left-hand-shaped bottom plate, the ammeter and the right-hand-shaped bottom plate are sequentially connected in series through a lead. The simple device for demonstrating the principle of the galvanic cell does not use two traditional solutions and metal as display media, uses a human body as an interactive medium, and leads audiences to clearly see the generation of current through the deflection of the pointer of the ammeter, thereby deeply knowing the principle of the galvanic cell.)

1. The utility model provides a simple and easy galvanic cell principle presentation device, includes the showcase and establishes mesa on the showcase, its characterized in that: be equipped with left hand shape bottom plate and right hand shape bottom plate on the mesa, the material of left hand shape bottom plate is copper, the material of right hand shape bottom plate is aluminium be equipped with the ampere meter between left hand shape bottom plate and the right hand shape bottom plate, establish ties left hand shape bottom plate, ampere meter and right hand shape bottom plate through the wire in proper order.

2. A simple galvanic principle demonstration apparatus according to claim 1, wherein: a handle is arranged on the side surface of the table-board.

Technical Field

The invention relates to the technical field of science popularization education, in particular to a simple primary battery principle demonstration device.

Background

A device that generates an electric current by an oxidation-reduction reaction is called a primary battery, and when the primary battery is discharged, an oxidation reaction occurs at a negative electrode and a reduction reaction occurs at a positive electrode. For example, a copper-zinc primary battery, also called a daniel battery, has a copper electrode as a positive electrode immersed in a sulfuric acid solution and a zinc plate as a negative electrode immersed in a zinc sulfate solution. The two electrolyte solutions are hooked through by a salt bridge, and the two electrodes are connected by a lead to form the primary battery. At present, the demonstration of the common galvanic cell principle is generally a teaching aid used in schools and is realized through different solutions and metals, and the demonstration expression principle is clear but the structure is generally complex.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a simple primary battery principle demonstration device.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a simple and easy galvanic cell principle presentation device, includes the showcase and establishes mesa on the showcase be equipped with left hand shape bottom plate and right hand shape bottom plate on the mesa, the material of left hand shape bottom plate is copper, the material of right hand shape bottom plate is aluminium be equipped with the ampere meter between left hand shape bottom plate and the right hand shape bottom plate, establish ties left hand shape bottom plate, ampere meter and right hand shape bottom plate through the wire in proper order.

Preferably, a handle is arranged on the side surface of the table-board.

Compared with the prior art, the invention has the beneficial effects that:

the simple device for demonstrating the principle of the galvanic cell does not use two traditional solutions and metal as display media, uses a human body as an interactive medium, and leads audiences to clearly see the generation of current through the deflection of the pointer of the ammeter, thereby deeply knowing the principle of the galvanic cell.

Drawings

FIG. 1 is a schematic front view of the apparatus of the present invention;

FIG. 2 is a schematic side view of the apparatus of the present invention;

FIG. 3 is a schematic top view of the apparatus of the present invention.

Detailed Description

Referring to the attached drawings 1-3, a simple device for demonstrating the principle of a primary battery comprises a display cabinet 1 and a table board 2 arranged on the display cabinet 1, wherein the table board 2 is provided with a left-hand-shaped bottom board 3 and a right-hand-shaped bottom board 4, the left-hand-shaped bottom board 3 is made of copper, the right-hand-shaped bottom board 4 is made of aluminum, an ammeter 6 is arranged between the left-hand-shaped bottom board 3 and the right-hand-shaped bottom board 4, and the left-hand-shaped bottom board 3, the ammeter 6 and the right-hand-shaped bottom board 4 are sequentially connected in series through a lead 7.

Preferably, a handle 8 is provided on the side of the table top 1.

According to the simple device for demonstrating the principle of the primary battery, an audience observes an ammeter pointer, and 1) when no person touches a left-hand bottom plate 3 and a right-hand bottom plate 4, no current exists in a circuit, and the pointer in an ammeter 6 does not swing; 2) spectators wear dry gloves, and press the hands in the left-hand bottom plate 3 and the right-hand bottom plate 4 respectively, and because of insulation, no current exists in the circuit, and the pointer in the ammeter 6 does not swing at the moment; 3) spectator will moist both hands according to respectively in left hand shape bottom plate 3 and right hand shape bottom plate 4, because the sweat of people is electrolyte this moment, because the material of left hand shape bottom plate 3 is copper, the material of right hand shape bottom plate 4 is aluminium, and when this moment the left hand shape bottom plate 3 of copper material and the right hand shape bottom plate 4 of aluminium material were arranged in electrolyte, gathering positive charge around the left hand shape bottom plate 3 of copper material, gathering negative charge around the right hand shape bottom plate 4 of aluminium material has just formed a primary cell, and ammeter 6 passes through wire 7 to be connected at the positive negative pole of primary cell, has just revealed the electric current, and the pointer will swing in ammeter 6. The simple device for demonstrating the principle of the galvanic cell does not use two traditional solutions and metal as display media, uses a human body as an interactive medium, and leads audiences to clearly see the generation of current through the deflection of the pointer of the ammeter, thereby deeply knowing the principle of the galvanic cell.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention in any way, so that any person skilled in the art can make changes or modifications to the equivalent embodiments using the above disclosure. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are still within the protection scope of the present invention, unless they depart from the technical spirit of the present invention.