Brine power clock for STEM education demonstration

Abstract

The utility model provides a saline water power clock for STEM education demonstration, and relates to the technical field of demonstration teaching aids. Comprising a clock base and a clock display screen, the clock display screen is installed on the back of the clock base, an opening corresponding to the clock display screen in position is formed in the surface of the clock base, the back of the clock display screen is connected with a first wire, the other end of the first wire is connected with a copper electrode and a zinc electrode, and two placement grooves are formed in the clock base; containers are arranged in the two containing grooves respectively, saline water is contained in the two containers, a copper electrode and a zinc electrode at the tail end of the first wire are arranged in the two containers respectively, a second wire is further arranged between the two containers, and the zinc electrode and the copper electrode are connected to the two ends of the second wire respectively. And a copper electrode and a zinc electrode are respectively arranged in each container. The saltwater electrifying demonstration device can be conveniently used as a teaching aid to demonstrate the saltwater electrifying principle, does not need wiring, is convenient to carry and observe, and has a good teaching effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to demonstration teaching aid technical field, especially a kind of saltwater power clock for STEM education demonstration. BACKGROUND

[0002] The invention of saltwater power clock can be traced back to the demand for sustainable, environmentally friendly and interesting time display method.

[0003] With the growing interest in environment-friendly technology products and the desire to integrate scientific principles into educational toys, scientists and inventors began to explore the use of a ubiquitous resource in nature-saltwater-to drive the mechanism of the clock.

[0004] The core of the saltwater power clock is its internal chemical reaction system. Saltwater is an electrolyte, and electrolytes are substances that can conduct electricity. In saltwater, there are free-moving anions and cations. The reactivity of zinc and copper is different, and a primary cell reaction will form in the electrolyte solution. The zinc sheet is equivalent to the negative electrode of the dry battery, and the negative electrode undergoes an oxidation reaction to lose electrons. The copper sheet on the positive electrode undergoes a reduction reaction to gain electrons. This process continues in the closed circuit composed of wires, electrolyte solution, and electrodes, driving the clock's electronic components to work, achieving precise time display. This process not only educates people about the basic knowledge of electrolysis, current generation, and energy conversion, but also provides a low-cost timing solution without external power supply. Therefore, the invention of the saltwater power clock is not only an innovation in traditional clock technology, but also a dynamic practice of the concept of sustainable development.

[0005] The invention of the saltwater power clock aims to demonstrate the wonderful process of converting chemical energy into mechanical energy, and to stimulate people's curiosity and learning enthusiasm for physics, chemistry, and even energy conversion principles. It provides a dynamic and intuitive teaching tool for physics and chemistry education in school classrooms, cultivating students' scientific interest and scientific thinking ability.

[0006] Existing saltwater power clocks have two categories: teaching aids and toys. The teaching aid structure uses wooden materials or flat boards. Wooden materials are prone to splinters that can injure hands, and flat boards directly place water cups, which are unstable and prone to tipping over during movement or operation. Meanwhile, the electronic components used are mostly loose parts, and loose electronic components have complex wiring. When using wires, you need to remove part of the insulation and connect them, which can easily cause damage during connection. Electronic components are connected by winding, which can cause copper wire breakage and insecure connection, causing the teaching aid to malfunction. In addition, because they are all loose parts, they are not convenient to move and do not have portability, resulting in only the front row of students being able to observe during class, and poor teaching effectiveness.

[0007] And the toy has a plastic version of the integral, but no hands-on part, only for observation, and not enough to support the task of knowledge to explain, so as not to be used as a teaching aid.

[0008] In view of the above reasons, the utility model provides a salt water power clock for STEM education demonstration to solve the prior art problems. Utility model content

[0009] The utility model discloses a salt water power clock for STEM education demonstration can conveniently as teaching aid demonstrate the principle of salt water electrification, and convenient to carry and observe, and teaching effect is good.

[0010] The utility model provides a salt water power clock for STEM education demonstration, include: clock base and clock display screen, the clock display screen is installed in the back of clock base, the surface of clock base is opened with the position of clock display screen corresponds opening, the back of clock display screen is connected with first wire, the other end of first wire is connected with copper electrode and zinc electrode, two setting grooves are seted up on clock base, two setting grooves are placed with container respectively, two containers are filled with salt water, the copper electrode and zinc electrode of first wire end are placed in two containers respectively, second wire is still provided between two containers, and the two ends of second wire are connected with zinc electrode and copper electrode respectively, and one copper electrode and one zinc electrode are arranged in each container.

[0011] Preferably, the clock base is an ABS open mold injection part.

[0012] Preferably, the back of the clock base is provided with a display screen groove, and the clock display screen is clamped in the display screen groove.

[0013] Preferably, the two sides of the display screen groove are provided with fixed screw holes, the back of the clock display screen is provided with a cover plate, and the two sides of the cover plate are fastened and connected with the fixed screw holes through screws.

[0014] Preferably, the copper electrode is a copper sheet or a copper column, and the zinc electrode is a zinc sheet or a zinc column.

[0015] Preferably, a wire hole is formed between the two setting grooves, and the other end of the first wire is bifurcated and extends out of the wire hole and is connected with a copper electrode and a zinc electrode respectively.

[0016] Preferably, the container is a plastic cup.

[0017] Preferably, the setting groove is a circular groove matched with the bottom of the plastic cup.

[0018] Preferably, the surface of the clock base is mounted with two buttons, two buttons are respectively setting button and mode button.

[0019] Preferably, the surface of the clock base is an arc surface.

[0020] Compared with the prior art, the utility model has the following technical effects:

[0021] 1. The salt water power clock of the utility model combines the parts in bulk, simplifies the connection of the circuit, retains the core experience function, reduces the wiring operation while ensuring that teachers and students can operate, avoids causing damage to parts, and ensures the normal work of the teaching aid;

[0022] 2. The device is convenient for overall moving display, is convenient for teachers and students to observe, improves the demonstration effect and teaching efficiency;

[0023] 3. By setting the accommodating groove on the clock base, the position of the container is conveniently limited, salt water is added in the container, zinc electrodes and copper electrodes are set as positive and negative electrodes, a passage is formed with the circuit board of the clock display screen, power supply is realized to ensure that the salt water clock works normally, and the stability and portability of the device as a whole are increased. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the drawings needed in the specific embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0025] Figure 1 It is the overall structure schematic diagram of the salt water power clock of the utility model;

[0026] Figure 2 It is the back structure schematic diagram of the clock base in the utility model;

[0027] EXPLANATION OF REFERENCE NUMERALS:

[0028] 1: clock base; 2: clock display screen; 3: first wire; 4: accommodating groove; 5: container; 6: second wire; 7: wire hole; 8: button; 9: fixed screw hole; 10: cover plate. DETAILED DESCRIPTION

[0029] The technical solutions of the present application will be described clearly and completely below in connection with the embodiments. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0031] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] As Figure 1 , 2As shown, the utility model provides a kind of saltwater power clock for STEM education demonstration, including: clock base 1 and clock display screen 2, clock display screen 2 is installed in the back of clock base 1, and the circuit board for controlling the display time of clock display screen 2 is connected to the back of clock display screen 2, and the surface of clock base 1 is provided with the rectangular opening corresponding to the position of clock display screen 2, whether the clock display screen 2 is displayed number during demonstration experiment can be seen from the surface of clock base 1.Circuit board is connected to the back of clock display screen 2 with first wire 3, and the other end of first wire 3 is connected with copper electrode and zinc electrode, two installation grooves 4 are set on clock base 1, two containers 5 are placed in two installation grooves 4 respectively, two containers 5 are filled with salt water mixed by salt and water respectively, copper electrode and zinc electrode at the end of first wire 3 are placed in two containers 5 respectively, second wire 6 is further provided between two containers 5, and zinc electrode and copper electrode are connected to the two ends of second wire 6 respectively, and one copper electrode and one zinc electrode are respectively provided in each container 5.By adding salt water as electrolyte in two containers 5 respectively, and setting one copper electrode and one zinc electrode in container 5 respectively as anode and cathode, and conducting electricity through salt water electrolyte, so that the circuit board of clock display screen 2 and the electrode of two containers 5 form a power supply loop, so that clock display screen 2 can display time normally.

[0033] In the embodiment, clock base 1 is a whole product made of ABS open mold injection part. The front of clock base 1 is convex, the convex part is 5*3.5cm in size, a square hollow area of 1.8*1cm is arranged in the center of the convex part, a display screen groove for placing clock display screen 2 is formed in the back of the convex part, and the circuit board connected to the display screen groove is clamped in the back recess of the convex part. The two sides of the display screen groove are provided with fixed screw holes 9, and the fixed screw holes 9 are located outside the back of the convex part. The back of the clock display screen 2 is provided with a cover plate 10, the two sides of the cover plate 10 are provided with protruding lug plates, and the lug plates are fastened and connected with the fixed screw holes 9 through screws. The above structure can increase stability and prevent the clock display screen 2 from falling during movement.

[0034] Specifically, the copper electrode is a copper sheet or a copper column, and the zinc electrode is a zinc sheet or a zinc column. In the embodiment, copper sheets and zinc sheets are selected to increase the contact area with salt water and improve the power supply effect. The copper sheets and the circuit board are fixedly connected through soldering and hot melt adhesive, so as to avoid the wires from falling off during use and affecting the experimental effect. Through the above-mentioned manner, the copper sheet, the zinc sheet and the wire are designed integrally, without the need for assembly. The copper sheet and the zinc sheet are both arc-shaped sheets with consistent size, which ensures the rigor of the experiment. The copper wire of the wire is wrapped by hot melt adhesive, which can prevent the copper wire from being exposed and corroded by salt water during use.

[0035] In the embodiment, the wire passing holes 7 are arranged between the two accommodation grooves 4, and the other ends of the first wires 3 are bifurcated and extended out of the wire passing holes 7 and connected with the copper electrode and the zinc electrode respectively.

[0036] In the embodiment, the container 5 is a cylindrical plastic cup, and the accommodation groove 4 is a circular groove matched with the bottom of the plastic cup, so that the stability is increased, the teaching aid can be moved, and the portability is increased.

[0037] In the embodiment, the surface of the clock base 1 is provided with two buttons 8 at the side of the clock display screen 2, and the two buttons 8 are a SET button and a MODE button respectively.

[0038] In the embodiment, the surface of the clock base 1 is an arc surface, so that the observation is facilitated during the demonstration, and the overall color of the clock base 1 is green, so that the aesthetic property is increased.

[0039] The working principle of the utility model is as follows: the two plastic cups are placed in the accommodation grooves 4 of the clock base 1, the appropriate amount of salt and water are poured into the plastic cups, the wires with copper sheets and zinc sheets are placed in the two plastic cups respectively, and the copper sheet and the zinc sheet of the clock base 1 are also placed in the plastic cups.

[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the above embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A saltwater power clock for STEM education demonstrations, characterized by, Include: Clock base and clock display screen, the clock display screen is installed on the back of the clock base, the clock base surface is provided with an opening corresponding to the position of the clock display screen, the back of the clock display screen is connected with the first wire, the other end of the first wire is connected with copper electrode and zinc electrode, two setting grooves are provided on the clock base, two containers are placed in the two setting grooves respectively, two containers are filled with brine, the copper electrode and zinc electrode at the end of the first wire are placed in the two containers respectively, a second wire is arranged between the two containers, the two ends of the second wire are connected with zinc electrode and copper electrode respectively, and a copper electrode and a zinc electrode are arranged in each container.

2. The saltwater power clock for STEM education demonstrations of claim 1, wherein, The clock base is an ABS open mold injection part.

3. The saltwater power clock for STEM education demonstrations of claim 1, wherein, The back of the clock base is provided with a display screen groove, and the clock display screen is clamped in the display screen groove.

4. The saltwater power clock for STEM education demonstrations of claim 3, wherein, The two sides of the display screen groove are provided with fixed screw holes, the back of the clock display screen is provided with a cover plate, and the two sides of the cover plate are fastened and connected with the fixed screw holes through screws.

5. The saltwater power clock for STEM education demonstrations of claim 1, wherein, The copper electrode is a copper sheet or a copper column, and the zinc electrode is a zinc sheet or a zinc column.

6. The saltwater power clock for STEM education demonstrations of claim 1, wherein, Two setting grooves are provided with a wire hole, the other end of the first wire is bifurcated and stretched out from the wire hole and connected with a copper electrode and a zinc electrode respectively.

7. The saltwater power clock for STEM education demonstrations of claim 1, wherein, The container is a plastic cup.

8. The saltwater power clock for STEM education demonstrations of claim 7, wherein, The setting groove is a circular groove matched with the bottom of the plastic cup.

9. The saltwater power clock for STEM education demonstrations of claim 1, wherein, Two buttons are mounted on the surface of the clock base, and the two buttons are setting button and mode button respectively.

10. The saltwater power clock for STEM education demonstrations of claim 1, wherein, The surface of the clock base is arc surface.

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