TWM602072U - Electrostatic adsorption device and air cleaner including electrostatic adsorption device - Google Patents

Abstract

An electrostatic adsorption device includes a high-voltage group, a low-voltage group and a voltage generator. The low-voltage group and the high-voltage group are arranged adjacent to each other and do not directly contact each other. The voltage generator output to the high-voltage group is greater than the low-voltage group The voltage of the group. Wherein, the plurality of first electrode plates of the high voltage group are arranged with a first interval from each other along a first direction, and the plurality of second electrode plates of the low voltage group are arranged with a second interval from each other along a second direction, the The second distance is smaller than the first distance. Installing the aforementioned electrostatic adsorption device in the air cleaner can filter most of the suspended particles in the air, reduce the particles adsorbed on the filter in the air cleaner, prolong the service life of the filter, environmental protection and save the cost of consumables.

Description

Electrostatic adsorption device and air cleaner including electrostatic adsorption device

This creation is related to equipment that purifies air; in particular, it refers to an air purifier with an electrostatic adsorption device.

With the changes of the times, people's large-scale activities cause excessive suspended particles to float in the air. These suspended particles are easily adsorbed on the surface of human skin or enter the lungs, leading to people's physiological diseases. In order to maintain the air quality of the activity environment, in addition to wearing masks outdoors, people must install an air purifier indoors. With the air purifier, suspended particles, bacteria and viruses in the indoor air can be filtered out, making the indoor air Keep clean and prevent harmful substances from entering the body, and people can maintain their physical health.

Known air cleaners mostly include a housing, at least one filter screen and a fan. The housing has an air inlet and an air outlet. The filter screen and the fan are arranged in the housing. When the fan starts, air enters the shell from the air inlet. The air will first pass through the filter. The filter can absorb suspended particles in the air. Then, the purified air will leave the shell through the air outlet to maintain the indoor air. Quality effect. However, after the filter has been used for a certain period of time, the filter is likely to reduce the gap of the filter hole due to suspended particles, dust or oily smoke attached to the periphery of the filter hole, and the air filtering capacity will begin to decline. Therefore, people must replace the filter regularly. However, the cost of buying a new filter should not be underestimated, and the used filter must be discarded, which will increase the burden on the environment. The above situation is really necessary to solve the problem.

In view of this, the purpose of this creation is to provide an electrostatic adsorption device and an air purifier. The air purifier with the electrostatic adsorption device can prolong the service life of the filter.

In order to achieve the above-mentioned purpose, the electrostatic adsorption device provided by this creation includes a high-voltage group, a low-voltage group and a voltage generator. The high voltage group includes a plurality of first electrode plates, the first electrode plates are arranged at intervals along a first direction, and there is a first distance between two adjacent ones of the first electrode plates. Between 0.5 cm and 5 cm; the low-voltage group and the high-voltage group are arranged adjacent to each other, and the high-voltage group and the low-voltage group are not in direct contact with each other, and the low-voltage group includes a plurality of second electrode plates , The second electrode plates are arranged at intervals along a second direction, and there is a second distance between adjacent two of the second electrode plates, and the second distance is between 0.2 cm and 1.5 cm. The second distance is smaller than the first distance; the voltage generator is electrically connected to the high voltage group and the low voltage group, and the output voltage of the voltage generator for the high voltage group is greater than the voltage output for the low voltage group.

Another purpose of the present invention is to provide an air purifier for filtering suspended particles in the air, which includes a casing, the aforementioned electrostatic adsorption device, an ultraviolet lamp and a first filter. The inside of the housing has an accommodating space, and includes an air inlet and an air outlet, the air inlet and the air outlet respectively communicate with the outside of the housing and the accommodating space; the electrostatic adsorption device is arranged in the container Compared with the low voltage group, the high voltage group of the electrostatic adsorption device is closer to the air inlet; the ultraviolet lamp is arranged in the accommodating space, compared with the high voltage group, the low voltage group Closer to the ultraviolet lamp; and, the first filter is arranged in the accommodating space and located between the air outlet and the electrostatic adsorption device.

The effect of this creation is that the electrostatic adsorption device can extend the use time of the filter of the air purifier. In the design of the first spacing of the high voltage group and the second spacing of the low voltage group, suspended particles pass through the first electrode sheets to become charged particles, and are freely adsorbed on the surface of the second electrode sheets, successfully filtering large particles in the air. Most of the suspended particles, only a few suspended particles must be purified by the first filter to achieve the effect of prolonging the life of the first filter, and the electrostatic adsorption device can wash off the adsorbed material and reuse it, which is extremely environmentally friendly.

In order to explain the creation more clearly, the preferred embodiments are described in detail below in conjunction with the drawings. Please refer to FIG. 1 and FIG. 2, which is an air purifier 100 according to a preferred embodiment of this creation, which includes a housing 10, a baffle 20, an electrostatic adsorption device 30, an ultraviolet lamp 40, and a first The filter screen 50, a second filter screen 60 and a fan 70.

The casing 10 has a side plate 12 and a main body 14. The side plate 12 can be detached from the main body 14. The main body 14 has an accommodating space S therein. The housing 10 includes an air inlet 10a and an air outlet 10b. The air inlet 10a is opened on the lower side of the side plate 12, the air outlet 10b is opened on the top surface of the housing 10, and the air inlet 10a and the air outlet 10b are respectively connected The housing space S between the exterior of the housing 10 and the interior of the housing 10. The baffle 20 is disposed in the accommodating space S, and divides the accommodating space S into a first space S1 and a second space S2 (refer to FIG. 3). The baffle 20 and the body 14 of the housing 10 together form an opening 10c, the opening 10c communicates with the first space S1 and the second space S2.

The electrostatic adsorption device 30 is arranged in the first space S1 of the accommodating space S. The electrostatic adsorption device 30 includes a high voltage group 32 and a low voltage group 34 arranged adjacently, and is electrically connected to the high voltage group by a voltage generator 36. Voltage group 32 and low voltage group 34. The high voltage group 32 and the low voltage group 34 are respectively connected to the inner bottom surface of the main body 14 by a support frame 38, and the high voltage group 32 and the low voltage group 34 are not in direct contact with each other. The high voltage group 32 is closer to the air inlet 10a than the low voltage group 34, and the low voltage group 34 is closer to the opening 10c than the high voltage group 32.

Referring again to FIG. 4, the high voltage group 32 includes a plurality of first electrode plates 321. The first electrode plates 321 are arranged at intervals along a first direction X1. Two of the first electrode plates 321 are adjacent to each other. There is a first distance D1 therebetween, and each of the first distances D1 is between 0.5 cm and 5 cm; preferably, each of the first distances D1 is between 1 cm and 3 cm. The purpose of designing the value range of the first distance D1 is that if the first distance D1 is less than 0.5 cm, the distance between the first electrode plates 321 is too close and high voltage is applied, which easily causes the first electrode plates 321 to overheat , Or when the suspended particles pass through the first electrode plates 321 after becoming charged particles, a fire will be generated. The above situation is likely to cause damage to the high voltage group 32; if the first distance D1 is greater than 5 cm, it will cause a large amount of The air passing through the gaps between the first electrode sheets 321 cannot ensure that most of the suspended particles in the air are subjected to high voltage and become charged particles, which causes the electrostatic effect to be weak. The low-voltage group 34 includes a plurality of second electrode plates 341, and the second electrode plates 341 are arranged at intervals along a second direction X2. In this embodiment, the first direction X1 is parallel to the second direction X2. There is a second distance D2 between adjacent two of the second electrode plates 341, the second distance is between 0.2 cm and 1.5 cm, and the second distance is smaller than the first distance; preferably, each The second distance D2 is between 0.3 cm and 0.7 cm. The purpose of designing the value range of the second distance D2 is that if the second distance D2 is less than 0.2 cm, the amount of air passing through the gaps between the second electrode sheets 341 per unit time is too small, resulting in the purification of the electrostatic adsorption device 30 Air efficiency is low; if the second distance D2 is greater than 1.5 cm, the air will be too large for the gaps between the second electrode sheets 341 to effectively adsorb all charged particles on the surface of the second electrode sheets 341, causing electrostatic adsorption The dust collection effect of the device 30 is poor. To further illustrate, the shape of each first electrode sheet 321 is the same, the shape of each second electrode sheet 341 is the same, and the area of each first electrode sheet 321 is smaller than the area of each second electrode sheet 341. However, The size and shape of the first electrode sheets 321 and the second electrode sheets 341 can be adjusted according to different application situations, and is not limited thereto.

The voltage generator 36 is arranged on one side of the high voltage group 32 and the low voltage group 34. The voltage generator 36 provides different voltage values for the high voltage group 32 and the low voltage group 34, wherein the voltage of the high voltage group 32 is greater than the low voltage group. Group 34 voltage. In this creation, the voltage value of each of the first electrode plates 321 is between 2500 volts and 6000 volts, and the voltage value of each of the second electrode plates 341 is between 1250 volts and 3000 volts; preferably, each of the The voltage value of the first electrode plate 321 is between 3000 volts and 5000 volts, and the voltage value of each second electrode plate 341 is between 1500 volts and 2500 volts. The suspended particles in the air first pass through the gaps between the first electrode plates 321 of the high-voltage group 32, and the suspended particles become charged particles after being subjected to the voltage of the high-voltage group 32, and these charged particles move from the high-voltage group 32. To the low voltage group 34, the charged particles will be adsorbed on the surface of the second electrode plates 341 of the low voltage group 34, and the air without charged particles will flow from between the second electrode plates 341 of the low voltage group 34 The gap passes through and leaves the electrostatic adsorption device 30.

The voltage values of the aforementioned distances and voltage groups are adapted to the designer. If the first distance D1 of the first electrode plates 321 is reduced (for example, reduced from 1.0 cm to 0.5 cm), plus the originally provided high voltage value The first electrode plates 321 (for example, 3000 volts are provided at the first electrode plates 321 separated by a first distance D1 of 1.0 cm), which easily causes the first electrode plates 321 to overheat due to excessive power, or When the suspended particles become charged particles and pass through the first electrode plates 321, fire is generated and the high voltage group 32 is damaged. Reduce the voltage value (for example, from 3000 volts to 2500 volts) to avoid damage due to excessive power. In the case of the voltage group 32, the first distance D1 is reduced, and the voltage value of the configured high voltage group 32 must be reduced. If the first distance D1 increases (for example, from 1 cm to 5 cm), the amount of air passing through the gaps between the first electrode plates 321 per unit time increases, and the high voltage originally provided is added to the For some first electrode plates 321 (for example, 3000 volts are provided at a first distance D1 of 1 cm apart from each other), the electric field generated by the originally provided high voltage value is not enough to suspend most of the air The particles become charged particles, that is, the suspended particles in the air are directly passed through the high voltage group 32, and the effect of electrostatic polarization is not obvious. Increasing the voltage value (such as increasing from 3000 volts to 6000 volts) can maintain the same electrostatic polarization As a result, the first distance D1 increases, and the voltage value of the configured high voltage group 32 must increase.

If the second distance D2 of the second electrode plates 341 is reduced (for example, 0.5 cm is reduced to 0.2 cm), and the original low voltage value is added to the second electrode plates 341 (for example, 2000 volts are provided at intervals between each other). The second distance D2 is 0.5 cm of the second electrode plates 341), which is likely to cause overheating or fire light as in the case of the first electrode plates 321, which will cause damage to the low voltage group 34 and reduce the voltage value (for example, from 2000 volts To 1250 volts) can avoid the situation that the power is too high to damage the low voltage group 34 or consume too much energy. Therefore, the second distance D2 is reduced, and the voltage value of the configured low voltage group 34 must be reduced. If the second distance D2 is increased (e.g. from 0.5 cm to 1.5 cm), plus the originally provided low voltage value on the second electrode plates 341 (e.g. 2000 volts are provided at the distance from each other. The second distance D2 is 0.5 cm For the second electrode sheets 341), the electric field is too small to effectively adsorb all charged particles on the surface of the second electrode sheets 341, so that the charged particles in the air can easily pass through the gaps between the second electrode sheets 341. As a result, the electrostatic adsorption device 30 has a poor dust collection effect. Increasing the voltage value (for example, from 2000 volts to 3000 volts) can effectively adsorb these charged particles. Therefore, the second distance D2 is increased, and the low voltage group 34 is configured. The voltage value must be increased.

The above-mentioned distance value and voltage value are within the better range defined by this creation, and all have energy saving, safe use and excellent air purification effect. In actual use, the space (such as the number of environmental acres) provided by the air purifier provided in this creative embodiment can be different, and the amount of air that the electrostatic adsorption device 30 needs to purify per unit time can be estimated, and the electrostatic The adsorption device 30 has a more suitable size, as well as the spacing and number of the high and low voltage electrode plates, and the voltage value within the creative voltage range is configured to achieve a sufficient air purification effect.

The ultraviolet lamp 40 is located in the first space S1 of the accommodating space S. The ultraviolet lamp 40 is disposed on the inner wall of the housing 10 near one side of the low voltage group 34 and corresponds to the gaps between the first electrode plates 321. The ultraviolet lamp 40 is used to destroy microorganisms (such as bacteria or viruses) in the accommodating space S to achieve the effect of killing bacteria and viruses.

The first filter 50 is disposed in the second space S2 of the accommodating space S, between the air outlet 10 b and the electrostatic adsorption device 30, and above the baffle 20. The first filter 50 has nano-silver ions, which can effectively filter fine dust, have antibacterial and anti-mildew functions. In this creative embodiment, the first filter 50 may be, for example, a HEPA filter (High-Efficiency Particulate Air filter, high efficiency air filter), but it is not limited thereto.

The second filter screen 60 is disposed in the second space S2 of the accommodating space S and is located between the air outlet 10b and the first filter screen 50. The second filter screen 60 has activated carbon components to remove peculiar smells And harmful gases. In this creative embodiment, the second filter screen 60 may be an activated carbon filter screen, but it is not limited thereto.

The fan 70 is arranged in the second space S2 of the accommodating space S and is close to the air outlet 10b. The fan 70 is used to suck air in the accommodating space S and suck the air outside the air purifier 100 from the air inlet 10a. Into the accommodating space S, and the air in the accommodating space S is discharged from the air cleaner 100 through the air outlet 10b.

According to the aforementioned structure, the method of filtering the air is explained below. Please cooperate with Figures 3 and 4, when the fan 70 starts to operate, the fan 70 sucks air into the accommodating space S from the air inlet 10a. When the air passes through the electrostatic adsorption device 30, the suspended particles in the air pass through the high The gaps between the first electrode plates 321 of the voltage group 32, and the suspended particles become charged particles after being subjected to the voltage of the high voltage group 32. The charged particles move from the high voltage group 32 to the low voltage group 34, and the charged particles The particles are adsorbed on the surface of the second electrode plates 341 of the low voltage group 34, and the air without charged particles passes through the gaps between the second electrode plates 341 of the low voltage group 34 and leaves the electrostatic adsorption device 30 . Then, the air passes through the ultraviolet light and moves from the first space S1 to the second space S2 through the opening 10c beside the baffle 20, and then passes through the first filter 50 and the second filter 60 in order to achieve sterilization and deodorization. The air purifying effect is similar, and the purified air is discharged from the accommodating space S through the air outlet 10b.

In addition to the above-mentioned components, the air purifier 100 in this embodiment further includes a third filter 80 disposed in the first space S1 of the accommodating space S and located between the high voltage group 32 and the air inlet 10a . The filter aperture of the third filter 80 is larger than the filter aperture of the first filter 50, and is used to preliminarily filter larger substances in the air, such as hair balls or small stones, and effectively prevent these larger substances from damaging the electrostatic adsorption device 30 , It can also avoid the short circuit between the high voltage group 32 and the low voltage group 34, thereby avoiding the occurrence of electrical fire.

Summarize the advantages of the aforementioned air purifier 100. The electrostatic adsorption device 30 of the air cleaner 100 can filter most of the suspended particles in the air, and adsorb these suspended particles on the surface of the second electrode sheet 341 of the low voltage group 34, and then only need to clean the electrostatic adsorption device 30 regularly. , Can be used repeatedly. Following the above content, the electrostatic adsorption device 30 adsorbs most of the suspended particles, which can reduce the suspended particles adsorbed on the first filter 50 and the second filter 60, the first filter 50 and the second filter 60 It can prolong the service life, which is extremely environmentally friendly and reduces the cost of replacing the filter. In addition, the design of the spacing between the electrode plates of each voltage group in the aforementioned electrostatic adsorption device 30 prevents the electrostatic adsorption device 30 from being bulky and heavy, which can prevent the overall air purifier 100 from being too large and easy to store. And it does not take up space; and the distance between the electrode sheets is designed with the aforementioned voltage value, the electrostatic adsorption device 30 has the best effect of adsorbing suspended particles and has the characteristics of energy saving.

The above descriptions are only the preferred and feasible embodiments of this creation. Any equivalent changes made in the application of this creation specification and the scope of patent application should be included in the patent scope of this creation.

[This creation] 100: Air purifier 10: Shell 10a: Air inlet 10b: Air outlet 10c: opening 12: side panel 14: body 20: bezel 30: Electrostatic adsorption device 32: high voltage group 321: first electrode sheet 34: Low voltage group 341: second electrode sheet 36: Voltage generator 38: support frame 40: UV lamp 50: The first filter 60: Second filter 70: Fan 80: The third filter S: housing space S1: The first space S2: second space X1: first direction X2: second direction D1: First pitch D2: second spacing

Figure 1 is a schematic diagram of an air purifier according to a preferred embodiment. Figure 2 is an exploded view of Figure 1. Figure 3 is a front view of Figure 1. Fig. 4 is a cross-sectional view taken along line 4-4 in Fig. 3;

100: Air purifier

10: Shell

10a: Air inlet

10b: Air outlet

10c: opening

20: bezel

30: Electrostatic adsorption device

36: Voltage generator

40: UV lamp

50: The first filter

60: Second filter

70: Fan

80: The third filter

S1: The first space

S2: second space

Claims (10)

An electrostatic adsorption device, comprising: a high voltage group, comprising a plurality of first electrode plates, the first electrode plates are arranged at intervals along a first direction, and the first electrode plates are arranged between two adjacent ones. The first spacing, each of the first spacings is between 0.5 cm and 5 cm; a low voltage group, the low voltage group and the high voltage group are arranged adjacently, and the high voltage group and the low voltage group are not directly connected to each other Contact, the low voltage group includes a plurality of second electrode plates, the second electrode plates are arranged at intervals along a second direction, and there is a second distance between adjacent two of the second electrode plates, the first The two spacings are between 0.2 cm and 1.5 cm, the second spacing is smaller than the first spacing; and a voltage generator is electrically connected to the high voltage group and the low voltage group, and the voltage generator is opposite to the high voltage group The output voltage is greater than the output voltage for the low voltage group. The electrostatic adsorption device according to claim 1, wherein each of the first distances is between 1 cm and 3 cm; and each of the second distances is between 0.3 cm and 0.7 cm. The electrostatic adsorption device according to claim 2, wherein the voltage of each of the first electrode plates is between 2500 volts and 6000 volts; the voltage of each of the second electrode plates is between 1250 volts and 3000 volts. The electrostatic adsorption device according to claim 1, wherein the first direction is parallel to the second direction. An air purifier for filtering suspended particles in the air. The air purifier includes: a housing with an accommodating space inside the housing, and includes an air inlet and an air outlet, the air inlet and the air outlet The air outlets respectively communicate with the outside of the casing and the accommodating space; The electrostatic adsorption device according to any one of claims 1 to 4, which is arranged in the accommodating space, and the high voltage group of the electrostatic adsorption device is closer to the air inlet than the low voltage group; The ultraviolet lamp is arranged in the accommodating space, and the low-voltage group is closer to the ultraviolet lamp than the high-voltage group; and a first filter, the first filter is arranged in the accommodating space and located in the Between the air outlet and the electrostatic adsorption device. The air purifier according to claim 5, comprising a baffle, the baffle is arranged in the accommodating space, and the accommodating space is divided into a first space and a second space communicating with each other, the electrostatic The adsorption device is located in the first space, the first filter screen is disposed in the second space, and the baffle and the housing together form an opening. Compared with the high voltage group, the low voltage group is closer to the opening. The air purifier according to claim 6, comprising a second filter screen arranged in the second space of the accommodating space, the second filter screen having an activated carbon component; the first filter screen having silver ions Ingredients. The air purifier according to claim 6, comprising a fan disposed in the second space of the accommodating space and close to the air outlet, and the fan is used to suck air in the accommodating space so as to The air outside the air purifier enters the accommodating space through the air inlet, and is discharged from the air purifier through the air outlet. The air purifier according to claim 5, wherein the air inlet is opened on the lower side of the side surface of the casing, and the air outlet is opened on the top surface of the casing. The air purifier according to claim 5, comprising a third filter arranged in the first space of the accommodating space and close to the air inlet, and the filter aperture of the third filter is larger than that of the first filter Filter pore size.

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