CN107069934B - An anti-power failure device based on electromagnetic induction - Google Patents

Abstract

The invention discloses an anti-power-failure device based on electromagnetic induction, which comprises an anti-power-failure circuit connected with an electric appliance circuit in parallel, wherein an electromagnetic coil is connected on the electric appliance circuit in series, a lever with a small metal ball and a small rubber ball arranged at two ends is positioned between the electromagnetic coil and the anti-power-failure circuit, and the small metal ball is positioned below the electromagnetic coil and above a conductive device of the anti-power-failure circuit and is used for realizing that the small metal ball is lifted to be in contact with the electromagnetic coil when the electric appliance is normally powered and is lowered to be in contact with a conductive groove when the electric appliance is powered off so as to realize that the anti-power. The invention uses the electromagnetic induction principle and the curved lever principle, when the outside is suddenly cut off, the power failure alarm is sent out, and the standby power supply is started to supply power, thereby ensuring the normal operation of the electric appliance.

Description

An anti-power failure device based on electromagnetic induction

technical field

The invention relates to the technical field of electrical engineering, in particular to a power failure prevention device based on electromagnetic induction.

Background technique

In the 1870s, the invention and application of electricity, an energy source powered by electricity, set off the second industrialization climax. It has become one of the three scientific and technological revolutions that have occurred in the world since the 18th century in human history, and has brought people from the "steam age" to the "electric age".

With the continuous development of science and technology, we have now entered the "information age", but in today's Internet age, we still have a growing demand for electricity. With the advent of new technologies, more and more electric-driven devices are being manufactured, such as computers, home appliances, production machines, medical equipment, and more. Electric power, which is widely used, has become an indispensable part of people's production and life today. The large-scale power system that appeared in the 20th century is known as one of the most important achievements in the history of human engineering science. The importance of electricity in today's society.

As a kind of secondary energy, electric energy is easy to obtain from various ways (such as hydropower, thermal power, nuclear power, solar power and other new energy power generation, etc.) Electric heat, electrochemical energy, electric light source, etc.) to meet the various needs of social production and life. Compared with other energy sources, electrical energy is easier to control in production, transmission and use. These series of advantages make electric energy become the most ideal secondary energy, which attracts people's attention.

The development and application of various emerging electrical materials enrich the content of modern materials science. The understanding of the unity of the material world, the birth of modern physics and the development of system cybernetics are all directly or indirectly affected by the application and development of electricity. Therefore, the development level of electric power has become an important symbol to measure the degree of social modernization, and it is a powerful lever to promote social production, scientific and technological development, and social civilization.

Since the application of electric energy in the 1880s, almost all technical departments of social production and people's lives have been gradually transferred to this brand-new technical foundation, which has greatly promoted the development of social productivity and changed the social lifestyle of human beings. Make the 20th century go down in history as "Electric Century".

Earlier, electrical energy began to be used for lighting. It eliminates the restriction of the night on human life and production labor, greatly prolongs the labor time for human beings to create wealth, improves labor conditions, and enriches people's lives. This has laid the most extensive social foundation for the application of electric energy, and has become a powerful driving force for electric energy production. The application of electricity not only affects all aspects of material production, but also penetrates into all aspects of human life more and more widely, such as the most well-known household appliances and medical appliances.

Electricity has such a series of advantages, and its application in today's society also greatly facilitates people's production and life, so we can easily see that once the power is cut off, people's daily life will be greatly affected. In this way, the value of the anti-power failure device can be revealed.

At present, for household appliances and related electric drive equipment, a sudden power failure cannot achieve continuous power supply to the above electrical equipment, resulting in the equipment unable to continue to work. On the one hand, the current emergency power supply is expensive, and on the other hand, there is a delay in the power supply connection. question.

To sum up, there is no convenient and feasible anti-power failure device for household appliances and other equipment that needs to supply 200V power.

SUMMARY OF THE INVENTION

In order to solve the deficiencies of the prior art, the present invention provides a power failure prevention device based on electromagnetic induction, which can solve the problem that household appliances cannot work and cause losses when there is a sudden power failure.

A power failure prevention device based on electromagnetic induction, comprising a power failure prevention circuit connected in parallel with an electrical circuit, an electromagnetic coil is connected in series on the electric circuit, and a lever with a metal ball at each end is located between the electromagnetic coil and the power failure prevention circuit. In the meantime, the two metal balls are specifically a first metal ball and a second metal ball with different qualities, the first metal ball is located below the electromagnetic coil and above the conductive device of the anti-power outage circuit, used for When the electrical appliance is normally powered, it rises and contacts the electromagnetic coil, and when the electrical appliance is powered off, it descends and contacts the conductive groove, so that the power failure prevention circuit is connected to the electrical appliance for continuous power supply.

Further, the mass of the first metal ball is greater than that of the second metal ball, which is used to realize that when the electrical appliance is powered off, the electromagnetic coil is de-energized, and the attractive force between the first metal ball and the electromagnetic coil disappears, and the first metal ball disappears. The metal ball falls under the action of gravity.

Further, the conductive device in the blackout circuit is specifically two hemispherical metal conductive grooves, and there is a certain gap between the two hemispherical metal conductive grooves. When the first metal ball falls in the gap, the two hemispheres The shaped metal conductive groove is connected with the first metal ball.

Further, the power failure prevention circuit includes a lead storage battery, a conductive device and an inverter connected in series in sequence. When the electrical appliance is powered off, the first metal ball falls and contacts with the two hemispherical metal grooves, so that the power failure prevention circuit forms a path. , At this time, the lead-acid battery starts to supply power, and the DC power provided by the battery is changed to 220V AC power through the inverter, and the electrical appliance works normally.

Further, the power failure prevention circuit includes a switch for enabling the power failure prevention function, and the switch is connected in series with the lead storage battery, the conductive device and the inverter. When the power failure prevention function does not need to be turned on, the switch can be disconnected. When the anti-power failure function needs to be turned on, the switch needs to be closed first.

Further, the levers respectively provided with the first metal ball and the second metal ball at both ends are curved levers.

Further, the lead-acid battery is charged by means of an external charging cable.

Further, when the electrical appliance is powered off, the sound and light alarm circuit is turned on, and the sound and light alarm circuit includes an alarm lamp, a GSM device, an electric bell and a metal groove connected in series, and a power supply battery supplies power to the above equipment.

Further, when the electrical appliance is powered off, the second metal ball rises and contacts the groove of the sound and light alarm module, so that the sound and light alarm module starts to work, and the GSM device sends a short message to the mobile terminal to inform the electrical equipment that the power has been cut off. , the bell rings, and the alarm light is on to inform the electrical equipment that the power has been cut off.

Further, when the curved lever is fixed, a metal shaft perpendicular to the curved lever is used to pass through the midpoint of the curved lever to fix the position of the curved lever on the electrical appliance that needs to be protected against power failure.

Compared with the prior art, the beneficial effects of the present invention are:

The invention can be used in medical pendant, shadowless lamp, anesthesia machine, ventilator, monitor and other medical appliances, bank automatic teller machine, electrical appliances, induction cooker, oven, air conditioner and other household appliances and other electric drive equipment. In the case of electricity, the device can urgently and effectively provide sustainable power, protect people's life and property safety to the greatest extent, and meet people's living needs.

In the present invention, the electromagnetic coil, the metal ball and the metal groove that are connected in series with the electrical circuit are used to realize the continuous power supply to the electrical appliance when the electrical appliance is powered off. Easy to implement.

Using the principle of electromagnetic induction and the principle of curved lever, when the external power is suddenly cut off, a power failure alarm is issued and the backup power supply is activated to supply power to ensure the normal operation of the electrical appliance.

For lead-acid batteries, a mode similar to that of an electric vehicle battery is adopted. When the battery is exhausted, an external charging cable can be used to charge the electromagnetism to ensure multiple use and improve the battery utilization rate.

Description of drawings

The accompanying drawings that form a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and do not constitute improper limitations on the present application.

Fig. 1 is the schematic diagram of sound and light alarm circuit of the present invention;

Fig. 2 is the circuit principle diagram of the anti-power failure device of the present invention;

Fig. 3 is the lever structure schematic diagram of the present invention;

In the figure, 1, 220V AC, 2, 12V lead battery, 3, conductive groove, 4, inverter, 5, electrical appliances that need to be protected against power failure, 6, electromagnetic coil, 7, the first metal ball, 8, the first Two metal balls, 9, curved lever, 10, GSM device and electric bell, 11, alarm light.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used herein is for the purpose of describing specific embodiments only, and is not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural as well, furthermore, it is to be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates that There are features, steps, operations, devices, components and/or combinations thereof.

As described in the background art, there is a shortage of power failure of electrical equipment in the prior art. In order to solve the above technical problems, the present application proposes a power failure prevention device based on electromagnetic induction.

Introduction to the working principle: As shown in Figure 2, a device that uses the electromagnetic induction technology to realize the power supply from the backup power supply in the event of a sudden power failure is provided. An anti-power outage circuit X is connected in parallel with the line 5 of the electrical appliance 5 that needs to be prevented from power outage. The electrical appliance 5 that needs to be protected against power outage is powered by 220V AC 1. An electromagnetic coil 6 is connected in series with the electrical appliance 5 that needs to be protected against power failure. In addition, a group of levers with a small ball at each end (ie, the first metal ball 7 and the second metal ball 8 mentioned above) are added. The lever structure is shown in Figure 3. The anti-power failure circuit X is composed of a 12V lead battery 2, a switch, two hemispherical metal conductive grooves 3 (with a certain gap, when the first metal ball 7 contacts with them, it forms path), a circuit with inverters 4 connected in series. The lever is located between the X circuit and the solenoid 6 and is not part of the X circuit and the solenoid 6 . When the electrical appliance is powered normally, the first metal ball 7 is attracted by the electromagnetic force of the electromagnetic coil 6 and cannot contact with the hemispherical metal conductive groove 3, so that the backup circuit does not supply power. When there is a sudden power failure outside, the electromagnetic coil 6 cannot generate electromagnetic force without current passing through. At this time, the 12V lead-acid battery 2 (backup battery) starts to supply power, and the DC power provided by the battery is changed to 220V AC power through the inverter 4, and the electrical appliance works normally. The switch in the anti-power failure circuit X can be used for the user to selectively control whether to enable the anti-power failure function.

For lead-acid batteries, the model is similar to that of electric vehicle batteries. When the battery is exhausted, the battery can be charged by means of an external charging cable to ensure multiple use and improve battery utilization.

In a typical embodiment of the present application, when the switch in the circuit x is closed, if the external power is suddenly cut off, the electrical appliance may not be able to operate normally. The ball 7 falls and comes into contact with the two hemispherical metal grooves, allowing the circuit X to form a via. At this time, the 12V lead-acid battery (backup battery) starts to supply power, and the DC power provided by the battery is converted into 220V AC power through the inverter, and the power supply equipment works normally.

When the electrical appliance 5 to be prevented from power failure is a refrigerator, regarding the fixation of the curved lever: a metal shaft perpendicular to the lever passes through the midpoint of the lever to fix the position of the lever within the refrigerator.

As shown in FIG. 1 , the second metal ball 8 at the other end of the curved lever 9 rises and contacts the groove of the sound and light alarm module, so that the alarm light 11 starts to work, the GSM device and the GSM device in the electric bell 10 Send a text message to the owner's mobile phone to inform the electrical equipment that the power has been cut off. At the same time, the electric bell rings and the alarm light 11 lights up to inform that the electrical equipment has been powered off.

In another embodiment of the present application, when the switch in the circuit x is turned off, the power failure prevention function is suspended. At this time, if the electrical appliance is suddenly powered off, the power supply will not be supplied by the backup power supply, nor will it be powered by GSM and sound and light. The alarm module alarms.

The invention can avoid or reduce losses by controlling a sudden power failure through electromagnetic induction and supplying power through a backup power supply. Electricity has become an integral part of life. When it comes to the safety of people's lives and property, the role of the anti-power-off device is fully demonstrated. From this point of view, this device will play an important role in the medical field. Applying this device to various electric drive equipment in the operating room, ventilators, monitors and other equipment in the intensive care room can ensure the life safety of patients to a greater extent. In addition, the application of this device to various household appliances can reduce the damage caused by sudden power failure to the appliances themselves, and prolong the service life of the household appliances.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims (7)

1. an anti-power failure device based on electromagnetic induction, it is characterized in that, comprise the anti-power failure circuit in parallel with the electrical circuit, on the electrical circuit, there is an electromagnetic coil in series, and both ends are respectively provided with a lever of a metal ball located in the electromagnetic field. Between the coil and the anti-power failure circuit, the two metal balls are specifically a first metal ball and a second metal ball with unequal quality, the first metal ball is located below the electromagnetic coil and is located in the conductive circuit of the power failure prevention circuit. The upper part of the device is used to realize the contact with the electromagnetic coil when the electrical appliance is normally powered, and the contact with the conductive groove when the electrical appliance is powered off, so as to realize the connection of the power failure prevention circuit to the electrical appliance for continuous power supply; The mass of the first metal ball is greater than that of the second metal ball, which is used to realize that when the electrical appliance is powered off, the electromagnetic coil is de-energized, the attractive force between the first metal ball and the electromagnetic coil disappears, and the first metal ball disappears. Falling under the action of gravity, the second metal ball rises and contacts the metal groove of the sound and light alarm circuit, so that the sound and light alarm circuit starts to work; The levers with the first metal ball and the second metal ball at both ends are curved levers. When the curved lever is fixed, a metal shaft perpendicular to the curved lever is used to pass through the midpoint of the curved lever. , and fix the position of the curved lever on the electrical appliance that needs to be protected against power outages. 2 . The power failure prevention device based on electromagnetic induction according to claim 1 , wherein the conductive device in the power failure prevention circuit is specifically two hemispherical metal conductive grooves, and two hemispherical metal conductive grooves. 3 . There is a certain gap between the grooves, and when the first metal ball falls in the gap, the two hemispherical metal conductive grooves are connected to the first metal ball. 3. The power failure prevention device based on electromagnetic induction according to claim 1, wherein the power failure prevention circuit comprises a lead storage battery, a conductive device and an inverter connected in series in sequence, and when the electrical appliance is powered off, the first metal The ball falls and contacts the two hemispherical metal grooves to form a path for the anti-power outage circuit. At this time, the lead-acid battery starts to supply power, and the DC power provided by the battery is converted into 220V AC power through the inverter, and the electrical appliance works normally. 4. A power failure prevention device based on electromagnetic induction according to claim 1, wherein the power failure prevention circuit comprises a switch for turning on the power failure prevention function, and the switch is connected to the lead-acid battery, the conductive device and the inverter. When the anti-power failure function is not required, the switch can be disconnected. When the anti-power failure function needs to be turned on, the switch needs to be closed first. 5 . The power failure prevention device based on electromagnetic induction according to claim 3 , wherein the lead-acid battery is charged by means of an external charging line. 6 . 6. a kind of anti-power failure device based on electromagnetic induction as claimed in claim 1 is characterized in that, when electric appliance is cut off, sound and light alarm circuit is turned on, and described sound and light alarm circuit comprises alarm lamp, GSM device connected in series , electric bell and metal groove. 7. The anti-power failure device based on electromagnetic induction according to claim 1, wherein when the electrical appliance is powered off, the second metal ball rises and contacts the metal groove of the sound and light alarm circuit, so that the The sound and light alarm circuit starts to work, and the GSM device sends a short message to the mobile terminal to inform the electrical equipment that the power has been cut off.

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