TWI640364B - Dust removal system and method - Google Patents

Abstract

A dust removal system and method, the dust removal system comprising two metal plates, and an electric field generating device. The electric field generating device includes a voltage module for applying a voltage to the metal plates, a first control module for controlling the voltage module to apply a first voltage to the metal plates, and a control module The voltage module applies a second voltage control module to the metal plate. The electric field generating device first applies the first voltage to the metal plate to adsorb the dust, and then applies the second voltage to cause a relative change in the potential between the metal plates, so that the dust is no longer sucked and dropped. The dust removal device and operation method are very simple and convenient to use.

Description

Dust removal system and method

The invention relates to a dust removal system and method, in particular to a dust removal system and method for adsorbing dust by electric field and then performing dust removal.

In recent years, due to problems such as exhaust emissions from vehicles on the road, heavy industry development, and damage, air pollution has become increasingly serious. The concentration of contaminated particles such as PM2.5 and PM10 often exceeds the standard. As for the indoor environment, it will be affected by the serious outdoor air pollution. When the people return home from the outdoors, they may bring the polluted particles of the outdoor air home, and sometimes the home is a closed environment or a suspension in the indoor air. Particles can also cause poor air quality, so air purifiers have gradually become one of the home appliances that people will choose to purchase.

However, after the air cleaner is used for a period of time, dust will accumulate on the air outlet, the wall surface at the air inlet, and the inside thereof. The dust may hinder the air from entering the air cleaner, and the air discharged from the air cleaner may be contaminated with dust. The purified air is again contaminated. On the other hand, in addition to the air cleaner, other household appliances or supplies, or industrial machine equipment, often have problems of dust accumulation. Therefore, the applicant of the present invention has proposed a dust removal system and method for solving the problem of dust accumulation.

Accordingly, it is an object of the present invention to provide a dust removal system and method that facilitates the removal of dust and that is convenient to use.

Thus, the dust removal system of the present invention comprises two spaced apart metal plates and an electric field generating device. The electric field generating device is electrically connected to the metal plates, and includes a voltage module for applying voltages to the metal plates, and a first control for controlling the voltage module to apply a first voltage to the metal plates a module, and a second control module for controlling the voltage module to apply a second voltage to the metal plates. When the first voltage is applied, the potential of one of the metal plates is higher than the potential of the other metal plate, and when the second voltage is applied, the potential of the metal plate having a higher potential becomes relative to the other The potential of the metal plate is low.

Wherein, when the first control module controls the voltage module to apply the first voltage to the metal plates, the dust is charged while being passed between the metal plates, and the charged dust is attracted by the metal plates. And adsorbing on the metal plates, when the second control module controls the voltage module to apply the second voltage to the metal plates, the charged dust is no longer sucked by the metal plates and is separated from the metal plates. And drop it.

The dust removing method of the present invention comprises the step A: providing two spaced metal plates. Step B: applying a first voltage to the metal plates to electrically charge the dust passing between the metal plates, and the charged dust is attracted by the metal plates and adsorbed on the metal plates. Step C: applying a second voltage to the metal plates, the charged dust is no longer sucked by the metal plates and is separated from the metal plates and dropped. Wherein, when the first voltage is applied, the potential of one of the metal plates is higher than the potential of the other metal plate, and when the second voltage is applied, the potential of the metal plate having a higher potential is changed relative to The other metal plate has a low potential.

The effect of the invention is that the electric field generating device first applies the first voltage to the metal plates to adsorb the dust, and then applies the second voltage to cause a relative change in the potential between the metal plates, so that the dust is no longer subjected to the dust. The device and the operation method of the dust removal are very simple and convenient to use.

Referring to Figures 1 to 4, an embodiment of the dust removal system of the present invention is suitable for installation in an air cleaner and for removing dust from an air cleaner, the air cleaner comprising a casing 1, the casing 1 comprising An air inlet 11 and an air outlet 12, the dust removal system of the embodiment comprises two metal plates 2, an electric field generating device 3, a dust collecting container 4, two vibration elements 5, a blowing unit 9, and an automatic switch. 6, as well as a manual switch 7.

The metal plates 2 are disposed in the casing 1 and are spaced apart from each other between the air inlet 11 and the air outlet 12 .

The electric field generating device 3 is electrically connected to the metal plates 2 and disposed in the casing 1 and includes a voltage module 30 for applying voltages to the metal plates 2, and a control module 30 for controlling the voltage modules 30. The first control module 31 for applying a first voltage to the metal plate 2, a second control module 32 for controlling the voltage module 30 to apply a second voltage to the metal plates 2, and an electrical connection The first control module 31 and the timing module 33 of the second control module 32. One of the second voltage and the first voltage is a positive voltage, and the other is a negative voltage. The positive voltage is opposite to the negative voltage. In the implementation of the present invention, the first voltage is applied to the metal plates 2 The potential of one of the metal plates 2 is higher than the potential of the other metal plate 2, and when the second voltage is applied, the potential of the metal plate 2 having a higher original potential becomes lower than the potential of the other metal plate 2. That is, after the voltage is applied, the two metal plates 2 can have a relative potential relationship, and the first voltage is applied first to make one of the metal plates 2 high relative to the other metal plate 2, The second voltage causes the potential of the two metal plates 2 to be opposite, and the focus of the present invention is that the potential of the two metal plates 2 has a relatively high or low relationship, but the specific applied voltage value may not be emphasized. The first control module 31, the second control module 32 and the timing module 33 can be integrated on a wafer. The timing module 33 controls the first control module 31 and the second control module 32 to automatically operate after a period of time.

The dust collecting container 4 is located below the metal plates 2 and is removably mounted on the casing 1 for easy removal and cleaning. The dust collecting container 4 of the present embodiment is similar to the drawer structure and can be pulled forward, but the structure thereof is not particularly limited as long as it can be used for accommodating dust. The dust collecting container 4 can also be omitted in the practice of the present invention.

The vibrating members 5 are mounted in the casing 1 and are respectively adjacent to the metal plates 2 for vibrating the metal plates 2 to assist in shaking off the dust adhering to the metal plates 2. Each of the vibrating elements 5, such as an ultrasonic oscillator, can emit ultrasonic waves to vibrate the metal plate 2. In practice, only one of the vibrating elements 5 may be provided as long as the vibrating force of the vibrating element 5 can be transmitted to the metal plate 2, so that the vibrating element 5 of the present invention is at least one.

The air blowing unit 9 includes four air blowing members 91 which are adjacent to the metal plates 2 in two groups. Each of the air blowing members 91 can be driven to blow the metal plate 2 to assist in blowing dust on the metal plate 2.

The automatic switch 6 is disposed on the casing 1 and electrically connected to the electric field generating device 3. The automatic switch 6 is, for example, a button, and can be controlled to control the electric field generating device 3 to enter an automatic mode. There are instructions.

The manual switch 7 is disposed on the casing 1 and electrically connected to the electric field generating device 3, and the manual switch 7 is manually operable by a user to control the opening and closing of the electric field generating device 3.

When the air cleaner operates, air flows from the air inlet 11 to the air outlet 12, and the air is entrained with dust. After the dust enters the casing 1 from the air inlet 11, the first between the metal plates 2 passes. The first control module 31 controls the voltage module 30 to apply the first voltage to the metal plates 2, and the surfaces of the metal plates 2 are respectively positively and negatively charged, and an electric field is formed between the metal plates 2, and When the dust passes through the metal plates 2, it is ionized and charged, and the charged dust is electrically attracted to the metal plates 2 and adsorbed on the metal plates 2. When the second control module 32 controls the voltage module 30 to apply the second voltage to the metal plates 2, since one of the second voltage and the first voltage is a positive voltage and the other is a negative voltage, the second The voltage is reversed with respect to the first voltage, that is, the potential of the metal plates 2 is reversed, and the charged dust is further replied by the metal plates 2 and is no longer attracted by the metal plate 2. And it is dropped on the dust collecting container 4, so that the dust removing action can be achieved. Moreover, when the second voltage is applied, the vibrating element 5 can also be combined to generate vibration, so that the metal plates 2 are subjected to vibration to help shake off the dust. Further, the metal plate 2 may be blown by the air blowing unit 9 to assist in separating the dust from the metal plate 2.

It is worth mentioning that the present invention has both an automatic dust removal and a manual dust removal mode. When the user presses the automatic switch 6 to control the electric field generating device 3 to be in the automatic mode, the timing module 33 is activated and controls the first The control module 31 and the second control module 32 automatically operate at intervals, so that the metal plates 2 pass the first voltage to adsorb dust at regular intervals, and then pass the second time after a predetermined time. The voltage is used to drop the dust, which is a mode of automatic dust removal. When the user wants to remove dust at any time, the manual switch 7 can be pressed to control the operation of the electric field generating device 3.

Referring to Figures 1, 2, and 5, an embodiment of the dust removing method of the present invention comprises the following steps.

Step 81: Providing the metal plates 2 at opposite intervals.

Step 82: applying the first voltage to the metal plates 2, so that the dust passing through the metal plates 2 is charged and charged, and the charged dust is attracted by the metal plates 2 and adsorbed on the metal plates 2. .

Step 83: applying the second voltage to the metal plates 2, the charged dust is no longer sucked by the metal plates 2 and is separated from the metal plates 2, and the dropped dust can be used by the dust collecting container 4 or other The way to collect it. Further, this step can also be used to vibrate the metal plates 2, and the vibration of the metal plate 2 also helps to shake off the dust to produce a better dust removal effect. Alternatively, the metal plate 2 may be blown by the air blowing unit 9 to assist in separating the dust from the metal plate 2. Vibration and blowing can be performed simultaneously, either sequentially or in combination with vibration or only with blowing.

As described above, the electric field generating device 3 first applies the first voltage to the metal plates 2 to adsorb dust, and the dust is prevented from adhering to the air inlet 11, the air outlet 12, the wall surface, and the like of the air cleaner. Subsequent application of a second voltage opposite to the first voltage causes the dust to be repulsion and falls. The dust removal device and the operation method are very simple and convenient to use. Although the air purifier is taken as an example in the embodiment, it is not limited thereto. The present invention can also be applied to any instrument device that needs to remove dust, and the structure of the invention is simple, and the application is quite convenient and low in cost.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the equivalent equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still The scope of the invention is covered.

1‧‧‧Shell
11‧‧‧Air inlet
12‧‧‧air outlet
2‧‧‧Metal plates
3‧‧‧Electrical field generating device
30‧‧‧Voltage Module
31‧‧‧First Control Module
32‧‧‧Second control module
33‧‧‧Time module
4‧‧‧dust container
5‧‧‧Vibration element
6‧‧‧Automatic switch
7‧‧‧Manual switch
81~83‧‧‧Steps
9‧‧‧Blowing unit
91‧‧‧Blowing parts

Other features and advantages of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a perspective view showing an embodiment of the dust removal system of the present invention installed in an air cleaner; FIG. 3 is a schematic side view of the embodiment and the air cleaner; FIG. 4 is a functional block diagram of the embodiment; and FIG. 5 is a flow chart; The figure illustrates an embodiment of the dust removing method of the present invention.

Claims (6)

A dust removal system comprising: two spaced apart metal plates; and an electric field generating device electrically connected to the metal plates and including a voltage module for applying voltages to the metal plates, one for controlling the voltage a first control module for applying a first voltage to the metal plates, and a second control module for controlling the voltage module to apply a second voltage to the metal plates, applying the first voltage When the metal plate of the metal plates has a higher potential than the other metal plate, when the second voltage is applied, the potential of the metal plate having a higher potential becomes lower than the potential of the other metal plate. Wherein, when the first control module controls the voltage module to apply the first voltage to the metal plates, the dust is charged while being passed between the metal plates, and the charged dust receives the metal plates. Attracting and adsorbing on the metal plates, when the second control module controls the voltage module to apply the second voltage to the metal plates, the charged dust is no longer sucked by the metal plates and is separated from the gold And fall plate; wherein the dust removing system further comprises at least one of these metal elements for vibration of the vibrating plate, and a metal plate located on the side of these, and can blow the dust blown in the blowing unit. The dust removal system according to claim 1, further comprising a manual switch for controlling opening and closing of the electric field generating device. The dust removal system of claim 1, wherein the electric field generating device further comprises a timing module electrically connecting the first control module and the second control module, the timing module controlling the first control module And the second control module automatically operates after a period of time. The dust removal system of claim 1, wherein one of the second voltage and the first voltage is a positive voltage and the other is a negative voltage. The dust removal system of claim 1 further comprising a dust collecting container located below the metal plates. A dust removing method comprising: step A: providing two oppositely spaced metal plates; and step B: applying a first voltage to the metal plates to electrically charge the dust between the metal plates by being ionized, and the charged dust Being attracted to the metal plates by being attracted by the metal plates; and step C: applying a second voltage to the metal plates, the charged dust is no longer sucked by the metal plates and is separated from the metal plates Falling, wherein, when the first voltage is applied, a potential of one of the metal plates is higher than a potential of the other metal plate, and when the second voltage is applied, a potential of the metal plate having a higher potential is changed The potential is lower with respect to the other metal plate; wherein the dust removing method further comprises a step D after the step B, vibrating the metal plates to assist in removing dust from the metal plates, and blowing the metal plates Helps to remove dust from the metal plates.