Anion air machine adapter with grounding indication

Abstract

The utility model discloses an air anion machine grounding indication adapter, which comprises an input module, an output module and an indication module, the input module comprises a zero line end, a live wire end and a ground wire end, and the output module is connected with the input module and is used for rectifying and transforming alternating current and outputting the alternating current to a load. The indicating module comprises an indicating lamp, a voltage reduction unit and a reversing unit, the reversing unit is connected with the zero line end and the live line end and outputs forward voltage, the output end of the reversing unit is connected with the positive electrode of the indicating lamp through the voltage reduction unit, and the negative electrode of the indicating lamp is connected with the ground line end. Through the arranged indication module, the reliability of the grounding end of the adapter can be visually indicated when the adapter is connected to a power grid, it is ensured that a user can visually confirm that the adapter is grounded, and therefore the use safety of the adapter and the negative air ion machine is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of adapters, and particularly relates to an air anion machine with a grounding indication adapter. Background Art

[0002] An air anion machine is an environmental optimization electrical appliance that uses the negative ions generated by itself to purify, dust, deodorize, and sterilize the air. The difference between it and the traditional air purifier is that it uses negative ions as the acting factor to actively capture harmful substances in the air, while the traditional air purifier is a fan that sucks air and uses a filter screen to filter dust to purify the air, which is called the passive adsorption and filtration purification principle and requires regular replacement of the filter screen, while the negative ion air purifier does not require consumables. With the people's attention to their own health, more and more air anion machines are used. During the use of the air anion machine, it needs to be powered by a power supply, that is, the power adapter is connected to the mains electricity, and then rectified and transformed to supply power to the air anion machine.

[0003] To ensure the use safety, the power adapter is usually provided with a grounding wire, but the existing power adapter does not have a grounding indicator, and the user cannot judge whether the grounding wire of the power adapter is really configured correctly during the use process; to solve this problem, the utility model proposes an air anion machine with a grounding indication adapter. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is: to provide an air anion machine with a grounding indication adapter that has a simple structure, is convenient to use, and can intuitively judge whether it is grounded.

[0005] To solve the above technical problem, the utility model is solved by the following technical solutions: an air anion machine with a grounding indication adapter, including an input module and an output module, the input module includes a neutral line terminal, a live line terminal, and a ground line terminal, the output module is connected to the input module for rectifying and transforming alternating current and outputting it to a load, and is characterized in that it further includes an indication module, the indication module includes an indicator light, a voltage reduction unit, and a commutation unit, the commutation unit is connected to the neutral line terminal and the live line terminal and outputs a positive voltage, the output end of the commutation unit is connected to the positive electrode of the indicator light through the voltage reduction unit, and the negative electrode of the indicator light is connected to the ground line terminal.

[0006] Furthermore, the indicator light is an LED light, and the voltage reduction unit is a voltage reduction resistor; the advantage is that the set LED light can indicate whether the ground wire is correctly configured when connected to the power grid, ensuring the intuitiveness of observation, and the set voltage reduction resistor can ensure the reliability of the use of the LED light and extend its service life.

[0007] Further, the commutation unit includes two rectifier diodes. The anodes of the two rectifier diodes are respectively connected to the live wire terminal and the neutral wire terminal, and the cathodes of the two rectifier diodes are connected to the step-down unit. The advantage is that the rectifier diodes provided can transform the circuit flowing through the commutation unit to be forward, that is, it ensures that the LED lamp can be driven to emit light.

[0008] Further, a fuse is provided at the live wire terminal and is located at the front end of the load and the indication module. The advantage is that the provided fuse can play a protective role and avoid excessive current caused by short circuit or other reasons.

[0009] Further, the output module includes an EMC rectification and filtering circuit, a PWM driving circuit, an isolation transformer circuit, and a voltage stabilization and filtering circuit. The EMC rectification and filtering circuit is used to rectify and filter the alternating current and deliver the electric energy to the isolation transformer. The PWM driving circuit is used to control the isolation transformer to step down the voltage and deliver the stepped-down electric energy to the voltage stabilization and filtering circuit. The voltage stabilization and filtering circuit stabilizes and filters the electric energy and outputs it to the load. The advantage is that the stability and reliability of the output voltage of the adapter can be ensured by the provided EMC rectification and filtering circuit, PWM driving circuit, isolation transformer circuit, and voltage stabilization and filtering circuit.

[0010] Compared with the prior art, the present utility model has the following beneficial effects: The provided indication module can visually indicate the reliability of the grounding end of the adapter when the adapter is connected to the power grid, ensuring that the user can visually confirm the grounding of the adapter, thereby ensuring the use safety of the adapter and the air anion machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0012] Figure 1 It is a circuit schematic block diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] The present utility model will be further described in detail below with reference to the drawings.

[0014] The following description is used to disclose the present utility model so that those skilled in the art can implement the present utility model. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious deformations. The basic principles of the present utility model defined in the following description can be used in other implementation schemes, deformation schemes, improvement schemes, equivalent schemes, and other technical schemes that do not depart from the spirit and scope of the present utility model.

[0015] As shown in the attached Figure 1 An air anion machine with a grounding indication adapter, which includes an input module and an output module, and also includes an indication module. The input module includes a neutral line terminal, a live line terminal, and a ground line terminal. The output module is connected to the input module to rectify and transform the alternating current and output it to the load. The indication module includes an indicator light LED1, a step-down unit, and a commutation unit. Among them, the indicator light is an LED, and the step-down unit is a step-down resistor R1. The commutation unit includes two rectifier diodes. The positive poles of the two rectifier diodes (D1, D2) are respectively connected to the live line terminal and the neutral line terminal. The negative poles of the two rectifier diodes are both connected to one end of the step-down resistor. The other end of the step-down resistor is connected to the positive pole of the indicator light, and the negative pole of the indicator light is connected to the ground line terminal. When working, that is, when the adapter is connected to the power grid, the alternating current is between the neutral line terminal and the live line terminal. The rectifier diodes connected to the neutral line segment and the live line terminal can commutate the current flowing through the step-down resistor and the LED light, ensuring that the voltage across the LED light is a forward voltage, so as to reliably drive the LED light to emit light. At this time, it is proved that the ground line terminal is connected to the ground wire, that is, the ground line terminal is correctly connected and configured, realizing the intuitive monitoring of whether the ground wire is correct, thereby ensuring the use safety of the adapter and the air anion machine. The provided step-down resistor can ensure the reliability of the LED light use and extend the service life.

[0016] The present utility model is provided with a fuse F1 at the live line terminal in front of the load and the indication module. The fuse can play a protective role to avoid excessive current caused by short circuit or other reasons.

[0017] It is worth noting that the output module of this design includes an EMC rectifier filter circuit, a PWM drive circuit, an isolation transformer circuit, and a voltage stabilization filter circuit. The EMC rectifier filter circuit is used to rectify and filter the alternating current and deliver the electric energy to the isolation transformer. The PWM drive circuit is used to control the isolation transformer to transform the voltage and deliver the transformed electric energy to the voltage stabilization filter circuit. The voltage stabilization filter circuit stabilizes and filters the electric energy and outputs it to the load. By setting the EMC rectifier filter circuit, the PWM drive circuit, the isolation transformer circuit, and the voltage stabilization filter circuit, the stability and reliability of the adapter output voltage can be ensured. This part is the prior art and will not be elaborated.

[0018] Those skilled in the art should understand that the embodiments of the present utility model described above and shown in the accompanying drawings are only examples and do not limit the present utility model. The object of the present utility model has been fully and effectively achieved. The functions and structural principles of the present utility model have been demonstrated and explained in the embodiments, and the embodiments of the present utility model may have any deformation or modification without departing from the above principles.

Claims

1. An air negative ion machine with a ground indication adapter, comprising an input module and an output module, wherein the input module comprises a neutral terminal, a live terminal and a ground terminal, and the output module is connected to the input module for rectifying and transforming the alternating current and outputting it to a load, characterized in that: It also includes an indication module, which includes an indicator light, a step-down unit and a reversing unit. The reversing unit is connected to the neutral line terminal and the live line terminal and outputs a forward voltage. The output end of the reversing unit is connected to the positive pole of the indicator light through the step-down unit, and the negative pole of the indicator light is connected to the ground line terminal.

2. The air negative ion generator with ground indication adapter according to claim 1, characterized in that: The indicator light is an LED lamp, and the voltage-dropping unit is a voltage-dropping resistor.

3. The air negative ion generator with ground indication adapter according to claim 1, characterized in that: The switching unit comprises two rectifier diodes, the positive electrodes of the two rectifier diodes are respectively connected to the live wire terminal and the neutral wire terminal, and the negative electrodes of the two rectifier diodes are connected to the step-down unit.

4. The air negative ion generator with ground indication adapter according to claim 1, characterized in that: The live wire end is provided with a fuse located at the front end of the load and indication module.

5. The air negative ion generator with ground indication adapter according to claim 1, characterized in that: The output module includes an EMC rectifier and filter circuit, a PWM drive circuit, an isolation transformer circuit and a voltage stabilizing filter circuit. The EMC rectifier and filter circuit is used to rectify and filter the AC point and transmit the electric energy to the isolation transformer. The PWM drive circuit is used to control the isolation transformer to transform the electric energy and transmit the transformed electric energy to the voltage stabilizing filter circuit. The voltage stabilizing filter circuit performs voltage stabilizing and filtering on the electric energy and outputs it to the load.

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