CN113421477A - Circuit based on carbon-based water-based conductive ink and interaction method - Google Patents

Abstract

The invention belongs to the technical field of teaching aids for children, and particularly relates to a circuit based on carbon-based water-based conductive ink and an interaction method, which comprises the following steps: presetting a guide line for painting carbon water-based conductive ink and a circuit board module placing area on a carrier; placing the circuit board module in the circuit board module placing area; the guide line is painted with the carbon-based water-based conductive ink, so that the carbon-based water-based conductive ink and the circuit board module are connected into a loop. The technical scheme solves the problem that the carbon conductive pen has weak conductivity and cannot be applied to a circuit as a lead, increases the fault tolerance of users and product manufacturers, and is favorable for popularization and use.

Description

Circuit based on carbon-based water-based conductive ink and interaction method

Technical Field

The invention belongs to the technical field of teaching aids for children, and particularly relates to a circuit based on carbon-based water-based conductive ink and an interaction method.

Background

At present, silver paste conductive pens are adopted in the scheme of connecting the circuits by utilizing the conductive pens, have better conductivity and can be used for directly connecting the circuits, but the cost is higher, and the price of the application of the interactive circuit is hard to bear by common people.

Compared with the carbon-based water-based conductive pen, the carbon-based water-based conductive pen is low in price and can be accepted by the ordinary people. However, in order to meet the requirement of writing viscosity of about 1100mPa · s, the resistance value of the carbon-based aqueous conductive ink is much larger than that of silver paste, so that the conductivity is lower than that of the silver paste conductive pen, and a circuit written by the carbon-based aqueous conductive ink cannot be directly used as a lead in a conventional scheme to be applied to a circuit.

Disclosure of Invention

In order to solve the problems, the invention provides a circuit based on carbon-based water-based conductive ink and an interaction method, solves the problem that a carbon-based conductive pen is weak in conductivity and cannot be used as a lead for a circuit, increases the fault tolerance of a user and a product manufacturer, and is beneficial to popularization and use.

A circuit interaction method based on carbon-based water-based conductive ink comprises the following steps:

s1, presetting a guide line for painting carbon water-based conductive ink and a circuit board module placing area on a carrier;

s2, placing the circuit board module in a circuit board module placing area;

and S3, painting the guide line with the carbon-based water-based conductive ink to enable the carbon-based water-based conductive ink and the circuit board module to be connected into a loop.

The guide line is a non-closed line, and the carbon-based aqueous conductive ink application guide line forms a circuit breaking circuit composed of the carbon-based aqueous conductive ink; the circuit board module is provided with at least two electrodes which are respectively connected with two ends of the circuit breaking circuit to connect the circuit breaking circuit into a loop.

A circuit based on carbon-based water-based conductive ink comprises a circuit breaking circuit formed by the carbon-based water-based conductive ink and a circuit board module connected with the circuit breaking circuit, wherein the circuit board module at least comprises a resistance detection circuit and a reaction circuit which are electrically connected; the resistance detection circuit is set with a threshold value, the reaction circuit works in a resistance monitoring trigger mode, and the reaction circuit is triggered when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit.

Moreover, the MOS tube is a P-type MOS tube.

Furthermore, the reaction circuit is provided with at least a light emitting unit and/or a sound emitting unit and/or a motor.

Moreover, the circuit board module is box-shaped, the two electrodes are positioned outside the box-shaped circuit board module, and the power supply and the reaction circuit are positioned inside the box-shaped circuit board module.

The carbon-based aqueous conductive ink is formed by applying a carbon-based aqueous conductive pen.

And the two electrodes are respectively connected with the grid electrode of the MOS tube and the negative electrode of the power supply.

Compared with the prior art, the technical scheme has the beneficial effects that: 1. the circuit board module is an independent part, can be moved and produced in batch, reduces the production cost and is easy to replace after failure; 2. the carbon-based water-based conductive ink is written by a carbon-based water-based conductive pen, and finally the circuit can form circuits in various shapes according to different writing methods of a user, so that the carbon-based water-based conductive ink has good interactivity; 3. the dotted line can be preset on a common paper book or card, and a user is guided to write by using a carbon water-based conductive pen according to the dotted line to form a circuit; 4. the working mode of the circuit board module is a resistance monitoring trigger mode, so that no matter what form a written circuit is and no matter how large the resistance value of the written circuit is, as long as the written circuit is within a set threshold value, the instructions sent by the circuit board module are completely the same, the requirements on a user and a product manufacturer are obviously reduced, and the fault tolerance rate of the user and the product manufacturer is greatly increased; 5. compared with the existing conductive pen which adopts silver paste material, the carbon-based water-based conductive ink has much lower cost and is more beneficial to popularization and use; 6. the resistance detection circuit only comprises an electrically connected power supply and an MOS tube, and is simple to manufacture and remarkably reduced in cost.

Drawings

FIG. 1 is a schematic diagram of a circuit board module;

FIG. 2 is a circuit schematic of a circuit board module;

FIG. 3 is an example teaching application of an interactive circuit based on carbon-based aqueous conductive ink;

description of reference numerals: 1. a circuit board module; 2. an electrode; 3. a resistance detection circuit; 4. a reaction circuit; 5. a light emitting unit; 6. a sound emitting unit; 7. a circuit board module placement area; 8. an electric motor.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples, and the present invention is not limited to the examples.

A circuit based on carbon water-based conductive ink at least comprises a circuit breaking circuit formed by the carbon water-based conductive ink and acircuit board module 1 connected with the circuit breaking circuit, wherein the circuit board module only comprises aresistance detection circuit 3 and areaction circuit 4, the resistance detection circuit only comprises a power supply and an MOS (metal oxide semiconductor) tube which are electrically connected, the MOS tube is a P-type MOS tube, the power supply and the MOS tube are respectively connected with an electrode, and the circuit board module is respectively connected with two ends of the circuit breaking circuit through the two electrodes to connect the circuit breaking circuit into a loop. The MOS tube is set with a threshold value, the working mode of the circuit board is a resistance monitoring triggering mode, and the reaction circuit is triggered when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit.

The circuit board module is box-shaped as shown in fig. 1, two electrodes are positioned outside the box-shaped circuit board module, and other parts of the MOS transistor, the power supply and the reaction circuit are positioned inside the box-shaped circuit board module.

The circuit schematic diagram of the circuit board module is shown in fig. 2, the resistance detection circuit adopts an MOS transistor, the area enclosed by the dotted line is a reaction circuit, and the reaction circuit is further provided with elements with interactive functions, such as a light-emittingunit 5 and/or a sound-emitting unit 6 and/or a motor. According to the parameters of MOS tubes of different models, when the source gate voltage Vsg is larger than a certain value, the channel of the P-type MOS tube is opened, the MOS tube enters a conducting state, and the working state of a subsequent circuit is started. Therefore, the trigger resistance value between the two electrodes, namely the threshold value, can be set by adjusting the resistance value of the bias resistor R0, and the reaction circuit can be triggered to send out an instruction when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit. It can also be seen from fig. 2 that the two electrodes are respectively connected to the gate (upper electrode in the figure) of the MOS transistor and the negative electrode (upper electrode in the figure) of the power supply.

The carbon-based water-based conductive ink is written by a carbon-based water-based conductive pen, in order to meet the requirement of writing viscosity of about 1100 mPas, the carbon-based water-based conductive ink adopted by the carbon-based water-based conductive pen has a relatively large resistance value, but the resistance value per centimeter is not greater than 5K omega, and the resistance value is taken as a reference for setting a threshold value, for example, the length of a broken circuit formed by the carbon-based water-based conductive ink is less than 20cm, and the threshold value set by a resistance monitoring trigger module is 100K omega; for example, the length of the open circuit formed by the carbon-based water-based conductive ink is less than 100cm, and the threshold value set by the resistance monitoring trigger module is 500K omega.

Fig. 3 is a teaching application example of an interactive circuit based on carbon-based aqueous conductive ink, the circuit board module is placed in a circuit board module placing area 7, a user is guided to paint the dotted line part of the figure with a carbon-based aqueous conductive pen to be solid, namely, the process of the circuit breaking circuit formed by the carbon-based aqueous conductive ink is completed, at the moment, two electrodes are respectively connected to two ends of the circuit breaking circuit to form a circuit loop, the red light of the reaction circuit flickers as long as the resistance between the two electrodes is smaller than a threshold value, and a fire alarm sound is given out at the same time, so that the learning of fire alarm and fire fighting knowledge of children is. And for example, the resistance detection circuit is completely the same as the previous example, the reaction circuit is provided with a motor, when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit, the reaction circuit can be triggered to send out an instruction to enable the motor to rotate, and a small paper sheet can be connected outside the motor to simulate the effect of windmill rotation.

A circuit interaction method based on carbon-based water-based conductive ink comprises the following steps:

s1, presetting a guide line for painting carbon water-based conductive ink and a circuit board module placing area on a carrier;

s2, placing the circuit board module in a circuit board module placing area;

and S3, painting the guide line with the carbon-based water-based conductive ink to enable the carbon-based water-based conductive ink and the circuit board module to be connected into a loop.

Wherein the guide line is a non-closed line, and the carbon-based aqueous conductive ink is used for coating the guide line to form a circuit breaking circuit consisting of the carbon-based aqueous conductive ink; the circuit board module has at least two electrodes, the two electrodes are respectively connected with two ends of the open circuit so as to connect the open circuit into a loop, and the contact part of the circuit board module placing area and the two electrodes of the circuit board module is a preset conductive material (such as carbon-series water-based conductive ink or a lead).

After the circuit forms a loop, the reaction circuit is triggered when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit.

Compared with the prior art, the technical scheme has the beneficial effects that: 1. the circuit board module is an independent part, can be moved and produced in batch, reduces the production cost and is easy to replace after failure; 2. the carbon-based water-based conductive ink is written by a carbon-based water-based conductive pen, and finally the circuit can form circuits in various shapes according to different writing methods of a user, so that the carbon-based water-based conductive ink has good interactivity; 3. the dotted line can be preset on a common paper book or card, and a user is guided to write by using a carbon water-based conductive pen according to the dotted line to form a circuit; 4. the working mode of the circuit board module is a resistance monitoring trigger mode, so that no matter what form a written circuit is and no matter how large the resistance value of the written circuit is, as long as the written circuit is within a set threshold value, the instructions sent by the circuit board module are completely the same, the requirements on a user and a product manufacturer are obviously reduced, and the fault tolerance rate of the user and the product manufacturer is greatly increased; 5. compared with the existing conductive pen which adopts silver paste material, the carbon-based water-based conductive ink has much lower cost and is more beneficial to popularization and use; 6. the resistance detection circuit only comprises an electrically connected power supply and an MOS tube, and is simple to manufacture and remarkably reduced in cost.

Claims (8)

1. A circuit interaction method based on carbon-based water-based conductive ink is characterized by comprising the following steps:

s1, presetting a guide line for painting carbon water-based conductive ink and a circuit board module placing area on a carrier;

s2, placing the circuit board module in a circuit board module placing area;

and S3, painting the guide line with the carbon-based water-based conductive ink to enable the carbon-based water-based conductive ink and the circuit board module to be connected into a loop.

2. The carbon-based aqueous conductive ink-based interactive circuit according to claim 1, wherein: the guide line is a non-closed line, and the carbon-based water-based conductive ink coating guide line forms a circuit breaking circuit formed by the carbon-based water-based conductive ink; the circuit board module is provided with at least two electrodes which are respectively connected with two ends of the circuit breaking circuit to connect the circuit breaking circuit into a loop.

3. A circuit based on carbon-based water-based conductive ink is characterized in that: the circuit board module at least comprises a resistance detection circuit and a reaction circuit which are electrically connected, the resistance detection circuit only comprises a power supply and an MOS (metal oxide semiconductor) tube which are electrically connected, the power supply and the MOS tube are respectively connected with an electrode, and the circuit board module is respectively connected with two ends of the open circuit through two electrodes and connects the open circuit into a loop; the resistance detection circuit is set with a threshold value, the reaction circuit works in a resistance monitoring trigger mode, and the reaction circuit is triggered when the resistance value between the two electrodes is lower than the threshold value set by the resistance detection circuit.

4. The carbon-based aqueous conductive ink-based interactive circuit according to claim 3, wherein: the MOS tube is a P-type MOS tube.

5. The carbon-based aqueous conductive ink-based interactive circuit according to claim 3, wherein: the reaction circuit is at least provided with a light-emitting unit and/or a sound-producing unit and/or a motor.

6. The carbon-based aqueous conductive ink-based interactive circuit according to claim 3, wherein: the circuit board module is box-shaped, the two electrodes are positioned outside the box-shaped circuit board module, and the power supply and the reaction circuit are positioned inside the box-shaped circuit board module.

7. The carbon-based aqueous conductive ink-based interactive circuit according to claim 3, wherein: the carbon-based water-based conductive ink is formed by coating a carbon-based water-based conductive pen.

8. The carbon-based aqueous conductive ink-based interactive circuit according to claim 3, wherein: the two electrodes are respectively connected with the grid electrode of the MOS tube and the negative electrode of the power supply.

Images