KR20220053379A - Anion generator - Google Patents

Abstract

The present invention relates to an anion generator. According to an embodiment of the present invention, an anion is generated by discharging a high voltage into the air for adsorption and removal of fine dust. Disclosed is an anion generator configured to amplify generation of the anion through a negative voltage stabilizing part including a neon lamp and block a reverse voltage to a ground side of an anion generator circuit to prevent damage to a circuit element.

Description

Anion Generator {ANION GENERATOR}

The present invention relates to an anion generator, which generates negative ions by discharging negative high voltage into the air for adsorption and removal of fine dust. A negative ion generator configured to block reverse voltage to the ground side to prevent damage to circuit elements.

Anion generator is used as a device to remove various harmful bacteria, dust, and fine dust present in indoor air.

The negative ion generator emits negative ions through a high-pressure discharge electrode (eg, carbon fiber, metal fiber) exposed to the air, and removes from the air by allowing positive ion particles such as dust or fine dust in the air to adsorb, harden and precipitate with each other through negative ions. do.

As an example of the prior art, Korean Patent Registration No. 10-1000977 (registered on December 07, 2010) relates to a negative ion generator and a high voltage generating module for the same. A configuration for stably performing high-voltage discharge was proposed.

As another example of the prior art, Korean Patent Laid-Open Patent Publication No. 10-2005-0013665 (published on February 04, 2005) relates to an anion generator, which drives a fan together with the generation of negative ions so that the negative ions generate Brownian motion and the fan's blowing function. We proposed a configuration in which pure negative ions of ozone-free (O3) and rust-free (NOx) are generated by generating negative ions using only negative ions while allowing them to spread throughout the room.

However, in the prior art as described above, a reverse voltage having a high voltage of about 4 to 12 kV is transmitted to the ground (GND) side of the circuit in the process of generating a negative high voltage from the boosting unit (or voltage multiplying unit) and providing it to the discharge electrode side. This could affect circuit elements connected to the ground (GND) side. Since many of the circuit elements included in the negative ion generator are installed for a low voltage condition of, for example, 12V, there is a risk of damage when a reverse voltage having a high voltage of 4 to 12 kV is transmitted.

In addition, when a state in which a high voltage reverse voltage is transmitted from the booster (or voltage multiplier) to the ground (GND) side of the circuit occurs, the high voltage of the booster (or voltage multiplier) is not stably maintained and negative ions are generated. There was also a problem that the efficiency may be lowered.

Republic of Korea Patent Registration 10-1000977 (Registered on December 07, 2010) Republic of Korea Patent Publication 10-2005-0013665 (published on February 04, 2005)

The present invention was devised in view of the above problems, and to generate negative ions by discharging a negative high voltage into the air for adsorption and removal of fine dust, and to amplify the generation of negative ions through a negative voltage stabilizing unit including a neon lamp. An object of the present invention is to provide a negative ion generator configured to block the reverse voltage to the ground side of the negative ion generator circuit to prevent damage to circuit elements and to output negative ions more stably.

According to one aspect of the present invention for achieving the above object, the power supply unit is connected to an external power supply for supplying DC power; an oscillator including a resistor, a capacitor and a switching transistor, and when the DC power of the power supply is supplied, the oscillation unit operates in conjunction with the transformer of the step-up unit to convert it into an AC power; a boosting unit including a transformer having a primary side connected to the oscillation unit and boosting the voltage of the AC power input from the oscillation unit to a higher voltage; It includes two rectifying diodes connected in reverse directions to the first output terminal and the second output terminal of the secondary side of the transformer, the output side being connected in parallel, and rectifying the AC voltage boosted by the step-up unit to output a negative voltage negative power generator; a smoothing unit including a smoothing capacitor connected to the output side of the rectifying diode and smoothing the negative voltage output from the negative power generating unit; a negative voltage stabilizing unit installed in the middle between the smoothing capacitor and the ground side, the input side including a neon lamp connected to the second output terminal of the secondary side of the step-up transformer, and stabilizing the negative voltage output by the smoothing capacitor; and a discharge unit configured of a high-voltage wire and configured to generate a negative potential by discharging the negative voltage provided from the negative voltage stabilizing unit in the air.

Preferably, the neon lamp is coated with an epoxy to block external light emission.

Preferably, the present invention includes a reverse voltage prevention unit including a diode for preventing reverse voltage in which the input side is connected in series in a forward direction to the power supply unit and preventing reverse voltage from being applied to the output side when a reverse voltage is applied from the power supply unit; a switch unit having an input side connected in series to the reverse voltage prevention unit and controlling supply or blocking of DC power output from the power supply unit to the output side; and an EMI removal unit including one or more capacitors connected in parallel to the output side of the switch unit and removing noise included in the power applied from the switch unit; further comprising, wherein the oscillator unit includes a direct current of the power supply unit through the EMI removal unit When power is supplied, it oscillates and converts to AC power.

Preferably, it further includes a; an electric shock reducing unit including a current limiting resistor and reducing the electric shock of the negative voltage output from the smoothing unit, wherein the discharge unit applies the negative voltage supplied through the electric shock reducing unit to the air. discharge to create a negative potential.

The negative ion generator of the present invention has the advantage of amplifying the generation of negative ions through a negative voltage stabilizing unit including a neon lamp and blocking the reverse voltage to the ground side of the negative ion generator circuit to prevent damage to circuit elements.

1 is a block diagram of an anion generator according to an embodiment of the present invention;
Figure 2 is a detailed circuit diagram of the negative ion generator according to an embodiment of the present invention.

The present invention may be embodied in various other forms without departing from its technical spirit or main characteristics. Accordingly, the embodiments of the present invention are merely illustrative in all respects and should not be construed as limiting.

The terms 1st, 2nd, etc. are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but another component may exist in between.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "comprises" or "comprising", "have" and the like are intended to represent the presence of elements or combinations thereof described in the specification, and the possibility that other elements or features may be present or added. It is not precluded.

Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of an anion generator according to an embodiment of the present invention, Figure 2 is a detailed circuit diagram of an anion generator according to an embodiment of the present invention.

The negative ion generator of this embodiment generates negative ions by discharging a negative high voltage into the air to adsorb and remove fine dust.

In particular, the negative ion generator of this embodiment amplifies the generation of negative ions through the negative voltage stabilizer M8 including the neon lamp LP1 and blocks the reverse voltage to the ground (GND) side of the negative ion generator circuit to prevent damage to circuit elements. prevent.

The power supply unit M1 is connected to an external power source and supplies DC power.

As an example, the power supply unit M1 is provided with a power connection jack J1 and an external rectifier (not shown) for rectifying a commercial AC voltage into a DC voltage is connected to the power supply voltage to the circuit element of the negative ion generator of this embodiment. to supply

The reverse voltage prevention unit M2 includes a reverse voltage prevention diode D1 having an input side connected in series to the power supply M1 in a forward direction, and when a reverse voltage is applied from the power supply M1, a reverse voltage on the output side Do not allow this to be approved.

Due to the user's carelessness, the polarity (+, -) of the external power may be connected to the power supply unit M1 in the opposite direction from the design specification. In this case, reverse voltage is supplied to the circuit element of the negative ion generator, which may cause damage to the circuit element or lead to a fire if severe.

In consideration of this, the reverse voltage prevention unit M2 including the reverse voltage prevention diode D1 is installed between the power supply unit M1 and the switch unit M3 to prevent the reverse voltage supply due to the user's carelessness.

The switch unit M3 has an input side connected in series to the reverse voltage prevention unit M2, and can supply or cut off the DC power output from the power supply unit M1 to the output side.

The EMI (Electro Magnetic Interference) removing unit M4 includes one or more capacitors C1 and C2 connected in parallel to the output side of the switch unit M3, and removes noise contained in the power applied from the switch unit M3. Remove.

The capacitors C1 and C2 filter noise generated when the switch unit M3 is operated to prevent malfunctioning or damage to circuit elements by noise.

The oscillation unit M5 includes resistors R1-R3, a capacitor C3, and a switching transistor Q1. When the DC power of the power supply unit M1 is supplied through the switch unit M3, the transformer of the boost unit M6 It works in conjunction with (T1) and converts it into AC power of a certain frequency (eg 25KHz) required for boosting.

The oscillation unit M5 is configured by an oscillation circuit including a switching transistor Q1, an inductance component (primary side of T1) connected in parallel to the collector terminal of the switching transistor Q1, and a capacitor C3. Resistors R1 and R2 connected to the base terminal of the switching transistor Q1 serve to adjust the base bias voltage of the switching transistor Q1. The resistors R1 and R2 and the capacitor C3 determine the time constant of the oscillation frequency. The switching transistor Q1 is switched based on the time constant to supply AC power of a predetermined frequency to the booster M6.

The boosting unit M6 includes a transformer T1 having a primary side connected to the oscillating unit M5, and boosts the voltage of the AC power input from the oscillating unit M5 to a higher voltage. For example, in the booster M6, the turns ratio may be determined such that AC power having an input voltage of 12V is input to the primary side and an output voltage of 4.2kV is induced in the secondary side. The turns ratio or thus the voltage ratio can be changed according to the design requirements.

The negative power generating unit M7 is connected in the reverse direction to the first output terminal 2 and the second output terminal 4 of the secondary side of the transformer T1, respectively, and the output side is connected in parallel to two rectifying diodes D2 , D3), and rectifies the AC voltage boosted by the boosting unit M6 to output a negative voltage.

The smoothing unit M9 includes a smoothing capacitor C4 connected to the output side of the rectifying diodes D2 and D3 and smoothes the negative voltage output from the negative power generating unit M7.

For example, when the first output terminal 2 of the secondary side of the transformer T1 of the boosting unit M6 is (+), the second output terminal 4 becomes (-), so negative power is supplied through the rectifying diode D3 When this smoothing capacitor C4 is charged and the first output terminal 2 on the secondary side of the transformer T1 of the boosting unit M6 is (-), the second output terminal 4 becomes (+). The negative power charges the smoothing capacitor (C4) through the rectifying diode D2.

In this way, the smoothing capacitor (C4) is constantly charged alternately by the first output terminal (2) and the second output terminal (4) of the secondary side of the transformer (T1), and the negative charge charged in the smoothing capacitor (C4) is uniformly discharged through the discharge unit M11.

The negative voltage stabilizing unit M8 is installed in the middle between the smoothing capacitor C4 and the ground GND, and the input side is connected to the second output terminal 4 of the secondary side of the step-up transformer T1. It includes a neon lamp (LP1), and stabilizes the negative voltage output from the smoothing capacitor (C4).

The neon lamp LP1 is a discharge tube in which a spiral electrode or a pair of semicircular electrodes is placed close to each other in a glass tube, and neon is sealed with a small amount of argon at a low pressure.

Neon lamp (LP1) is a lamp used in high-pressure conditions and is a circuit element that consumes power. It is possible to provide a function of a power consuming element for voltage stabilization while dissipating the reverse voltage transmitted to the GND) side by using it as light emission power.

For example, a light emitting device such as an LED may be destroyed during repeated use in a high voltage environment, but in a neon lamp, filament destruction does not occur even at a high pressure, so a method for consuming reverse voltage power in a high voltage environment such as this embodiment Suitable for use as an element.

Preferably, the neon lamp LP1 of this embodiment is coated with an epoxy to block external light emission. That is, in consideration of the fact that the neon lamp LP1 of this embodiment is used as a power consuming element and does not require a function as a lighting means, an epoxy coating blocks external light emission. Epoxy coating is suitable for neon lamp (LP1) coating in that it has good heat resistance.

Since the potential of the ground side of the neon lamp LP1 is 0 (zero), when the second output terminal 4 of the boosting unit M6 is (+), the potential difference between 0 (zero) and (+) of the neon lamp LP1 ) is on, and conversely, when the second output terminal 4 of the booster M6 is (-), the neon lamp LP1 is turned on with a potential difference between 0 (zero) and (-). . Since the neon lamp LP1 constantly maintains the potential difference, the negative potential (eg, -4.2 kV) output from the smoothing capacitor C4 to the discharge unit M11 can be constantly maintained and the negative voltage can be stabilized.

When the negative voltage output from the smoothing capacitor C4 to the discharge unit M11 is stabilized, the negative potential of the high-voltage wire HVO of the discharge unit M11 is stably generated. The effect of amplifying negative ions can be obtained.

In addition, in the negative ion generator circuit, the grounding side (GND) of various circuit elements may be connected to each other by one grounding element (eg, a conductor member) in the device manufacturing structure. In the booster M6, a high voltage of about 4 to 12 kV Since the negative voltage stabilizing unit M8 blocks the transmission of a high-voltage reverse voltage to the ground (GND) side of the circuit in the process of generating and providing it to the discharge unit (M11), the It is possible to block the effect of reverse voltage on the

The electric shock reducing unit M10 includes a current limiting resistor R4 and reduces the electric shock of the negative voltage output from the smoothing unit M8.

The current limiting resistor (R4) limits the current when outputting high voltage so that when insulation breakdown such as electric shock or short circuit occurs, there is no harm to the human body and at the same time, fire does not occur.

The discharge unit M11 is composed of a high-voltage wire HVO, and discharges the negative voltage provided from the negative voltage stabilizer M8 in the air to generate a negative potential. The high-pressure wire (HVO) may be made of, for example, carbon fiber or metal fiber.

The high-pressure negative voltage discharged to the atmosphere through the high-voltage wire HVO of the discharge unit M11 generates a large amount of negative ions through insulation breakdown of air.

Although the present invention has been mainly described with reference to the accompanying drawings, it will be apparent to those skilled in the art that many various and obvious modifications can be made therefrom without departing from the scope of the present invention. Accordingly, the scope of the present invention should be construed by the appended claims to cover many such modifications.

M1: power supply
M2: reverse voltage prevention part
M3: switch part
M4: EMI Eliminator
M5: Oscillator
M6: step-up unit
M7: Negative power generator
M8: negative voltage stabilizer
M9: smooth
M10: electric shock reduction part
M11: discharge part
C4: smoothing capacitor
GND: Ground
T1: step-up transformer
LP1: Neon Lamp
HVO: high voltage wire

Claims (4)

a power supply unit (M1) connected to an external power source and supplying DC power;
It includes a resistor (R1-R3), a capacitor (C3), and a switching transistor (Q1). When the DC power of the power supply unit (M1) is supplied, it oscillates in conjunction with the transformer (T1) of the step-up unit (M6) to generate an AC power. an oscillation unit M5 for converting;
a step-up unit (M6) including a transformer (T1) having a primary side connected to the oscillation unit (M5) and boosting the voltage of the AC power input from the oscillation unit (M5) to a higher voltage;
It includes two rectifying diodes D2 and D3 connected in the opposite direction to the first output terminal 2 and the second output terminal 4 of the secondary side of the transformer T1, respectively, and the output side is connected in parallel, and a negative power generation unit (M7) for rectifying the AC voltage boosted by the unit (M6) to output a negative voltage;
a smoothing unit (M9) including a smoothing capacitor (C4) connected to the output side of the rectifying diodes (D2, D3) and smoothing the negative voltage output from the negative power generating unit (M7);
It includes a neon lamp (LP1) installed in the middle between the smoothing capacitor (C4) and the ground (GND) side and the input side is connected to the second output terminal (4) of the secondary side of the step-up transformer (T1). a negative voltage stabilizing unit (M8) for stabilizing the negative voltage output by the utilized capacitor (C4); and
A negative ion generator configured to include; a discharge unit (M11) that is composed of a high-voltage wire (HVO) and generates a negative potential by discharging the negative voltage provided from the negative voltage stabilizing unit (M8) in the air.
According to claim 1,
The neon lamp (LP1) is an anion generator, characterized in that the external light emission is blocked by an epoxy coating.
According to claim 1,
The input side includes a reverse voltage prevention diode D1 connected in series to the power supply M1 in the forward direction, and when the reverse voltage is applied from the power supply M1, the reverse voltage is prevented from being applied to the output side. part (M2);
a switch unit (M3) having an input side connected in series to the reverse voltage prevention unit (M2) and controlling the supply or cut-off of the DC power output from the power supply unit (M1) to the output side; and
An EMI removal unit (M4) including one or more capacitors (C1, C2) connected in parallel to the output side of the switch unit (M3) and removing noise included in the power applied from the switch unit (M3); further comprising and
The oscillation unit (M5) is an ion generator, characterized in that when the DC power of the power supply unit (M1) is supplied through the EMI removal unit (M4), it oscillates and converts it into AC power.
According to claim 1,
It further includes a; including a current limiting resistor (R4) and reducing the electric shock shock of the negative voltage output from the smoothing unit (M8) (M10);
The discharging unit (M11) is a negative ion generator, characterized in that for generating a negative potential by discharging the negative voltage supplied through the electric shock reducing unit (M10) in the air.

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