CN110665031B

CN110665031B - Sterilizing device

Info

Publication number: CN110665031B
Application number: CN201910966085.1A
Authority: CN
Inventors: 王贤波; 丁泺火; 曾焕雄; 封宗瑜; 毛建平; 胡康泽; 王堃; 肖德玲
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2024-05-24
Anticipated expiration: 2039-10-11
Also published as: CN110665031A

Abstract

The present invention provides a sterilizing apparatus comprising: a housing (10) having an interior cavity; the electrostatic dust removing component (20) is arranged in the inner cavity, dust in the inner cavity is removed by plasma generated by the electrostatic dust removing component (20) and harmful microorganisms are killed, and ozone generated by the electrostatic dust removing component (20) kills the harmful microorganisms. According to the technical scheme, harmful microorganisms are killed through plasma and ozone generated by the electrostatic dust removal component, so that the harmful microorganisms are truly killed, the sterilization capability is high, and the sterilization rate is high; the plasma that the static dust removal part produced can remove dust to the dust in the inner chamber, realizes air-purifying, with disinfection and purification integration on a degassing unit, carries out more efficient processing to the air, and throughput is stronger, and the integrated level is high, realizes a tractor serves several purposes, improves user experience.

Description

Sterilizing device

Technical Field

The invention relates to the technical field of disinfection equipment, in particular to a disinfection device.

Background

Along with the development of economy, the urban process is accelerated, the house price is higher and higher, but the consumer has stronger and stronger trend and demand on good life, the functions of the household appliances are required to be more and more, and the household appliances with higher and higher life demands are more and more urgent work on maximizing and fully utilizing the indoor space of the household and meeting the consumer at the same time, so the household appliances with higher integration level of the development functions are effective measures.

The household disinfection cabinet is a necessary household electrical appliance for families, plays a role in daily life of each family, and a common disinfection cabinet simply uses high-concentration ozone for disinfection, so that a plurality of intractable bacteria can not be killed, and the disinfection cabinet has the advantages of insufficient disinfection capability and low disinfection rate, and has only disinfection function and single function, so that the disinfection cabinet has weak air treatment capability.

Disclosure of Invention

The invention mainly aims to provide a disinfection device which solves the problem that a disinfection cabinet in the prior art is not strong in air treatment capacity.

To achieve the above object, the present invention provides a sterilizing apparatus comprising: a housing having an interior cavity; the electrostatic dust removing component is arranged in the inner cavity, plasma generated by the electrostatic dust removing component removes dust and kills harmful microorganisms in the inner cavity, and ozone generated by the electrostatic dust removing component kills the harmful microorganisms.

Further, the electrostatic dust collection component comprises a generating electrode and a collecting electrode which are oppositely arranged, and the sterilizing device further comprises a high-voltage power supply connected with the generating electrode.

Further, the disinfection device further comprises a driving mechanism which drives the generating pole and/or the collecting pole to move so as to change the distance between the generating pole and the collecting pole.

Further, the distance between the emitter and collector is in the range of 10mm to 30 mm.

Further, the sterilizing device is provided with a sterilizing mode and an air purifying mode, when the sterilizing device is in the sterilizing mode, the distance between the generating electrode and the collecting electrode is H1, and when the sterilizing device is in the air purifying mode, the distance between the generating electrode and the collecting electrode is H2, wherein H1 is less than H2.

Further, H1 is 10mm, and/or H2 is 30mm.

Further, the voltage of the high-voltage power supply is in the range of 18kV to 35 kV.

Further, the sterilizing device is provided with a sterilizing mode and an air purifying mode, when the sterilizing device is in the sterilizing mode, the output voltage of the high-voltage power supply is a first voltage, and when the sterilizing device is in the air purifying mode, the output voltage of the high-voltage power supply is a second voltage, and the first voltage is higher than the second voltage.

Further, the first voltage is 35kV and/or the second voltage is 18kV.

Further, be equipped with air intake and the air outlet of communicating with the inner chamber on the casing, degassing unit still includes the fan that is close to the air outlet setting, and electrostatic precipitator part sets up in the one side of keeping away from the air outlet of fan.

Further, the disinfection device further comprises a filter screen which is close to the air inlet, the electrostatic dust removal part is arranged on one side, far away from the air inlet, of the filter screen, and/or the air inlet is arranged on the bottom of the shell, the air outlet is arranged on the top of the shell, the fan is positioned above the electrostatic dust removal part, and/or the disinfection device further comprises an ozone removal part, and the ozone removal part is arranged between the fan and the electrostatic dust removal part.

Further, the sterilizing device further comprises a dust detection part and a controller, wherein the dust detection part is arranged in the inner cavity and is used for detecting the concentration of dust, and the controller is electrically connected with the dust detection part and the electrostatic dust removal part.

Further, the sterilizing device also comprises a commodity shelf for placing the articles to be sterilized, and the plasma kills harmful microorganisms on the articles to be sterilized and in the air.

Further, the sterilizing device further comprises a weight detecting part and a controller, wherein the weight detecting part is arranged on the commodity shelf and used for detecting the weight of the commodity shelf, and the controller is electrically connected with the weight detecting part and the electrostatic dust removing part, and/or the object to be sterilized is tableware.

The technical scheme of the invention has the following advantages: the plasma and ozone generated by the electrostatic dust removing component kill harmful microorganisms, and compared with the mode of sterilizing by using ozone only in the prior art, the method has the advantages of really killing the harmful microorganisms, along with strong sterilization capability and high sterilization rate. Meanwhile, the plasma generated by the electrostatic dust removing component can remove dust in the inner cavity, so that air is purified, disinfection and purification are integrated on one disinfection device, more efficient treatment is performed on the air, the treatment capacity is stronger, the integration level is high, the multiple functions are realized, and the user experience is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 shows a schematic structural view of a sterilizing apparatus according to the present invention.

Reference numerals illustrate:

10. A housing; 20. an electrostatic dust removing part; 21. generating electrode; 22. a collector; 30. a blower; 40. a filter screen; 50. an ozone removal member; 60. a dust detection part; 70. a commodity shelf; 80. weight detecting means.

Detailed Description

The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In addition, the technical features of the different embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1, the sterilizing apparatus of the present embodiment includes: a housing 10 and an electrostatic precipitator 20, the housing 10 having an inner cavity; the electrostatic dust removing component 20 is arranged in the inner cavity, the plasma generated by the electrostatic dust removing component 20 removes dust and kills harmful microorganisms in the inner cavity, and the ozone generated by the electrostatic dust removing component 20 kills the harmful microorganisms.

By using the sterilizing device of the embodiment, harmful microorganisms are killed by the plasma and ozone generated by the electrostatic dust removing component 20, compared with the mode of sterilizing by using ozone only in the prior art, the sterilizing device truly kills the harmful microorganisms, and has strong sterilizing capability and high sterilizing rate; meanwhile, the plasma generated by the electrostatic dust removing component 20 can remove dust in the inner cavity, so as to realize air purification. Thus, the disinfection and purification are integrated on one disinfection device, the air is processed more efficiently, the processing capacity is stronger, the integration level is high, the multiple functions of one machine are realized, and the user experience is improved.

In this embodiment, the electrostatic precipitator 20 includes an electrode 21 and a collector 22 disposed opposite to each other, and the sterilizing apparatus further includes a high voltage power supply connected to the electrode 21. The generating electrode 21 generates plasma under high pressure to charge and sterilize the dust, and the collecting electrode 22 collects the charged dust and the killed harmful microorganisms such as bacteria and viruses, so as to realize purification and sterilization; the generating electrode 21 also generates ozone under high pressure, the ozone can kill bacteria, and the purpose of quick and high-efficiency sterilization can be achieved through plasma and ozone. The two electrodes are used as the purifying part and the sterilizing part, so that the structure is simpler, bacteria are truly killed, high-efficiency sterilization and disinfection are realized on the one hand, air is purified on the other hand, more efficient treatment is performed on the air, and the treatment capacity is stronger.

In this embodiment, the sterilizing device further comprises a driving mechanism which drives the generator pole 21 and/or the collector pole 22 to move so as to change the distance between the generator pole 21 and the collector pole 22. Under the condition that the voltage of the high-voltage power supply is unchanged, the distance between the generating electrode 21 and the collecting electrode 22 is changed, so that the concentrations of plasma and ozone generated by the electrostatic dust collection component 20 are different, and the closer the distance between the generating electrode 21 and the collecting electrode 22 is, the higher the concentration of plasma and ozone generated by the electrostatic dust collection component 20 is, the more rapid and efficient sterilization. The driving mechanism may be a linear driving mechanism such as an air cylinder or a linear motor. When the voltage of the high-voltage power supply is 18kV, the distance between the generating electrode 21 and the collecting electrode 22 is adjusted, and the following experiment shows that: when the distance between the generator 21 and the collector 22 exceeds 30mm, the plasma concentration is too low, the purifying and sterilizing effects are poor, and when the distance between the generator 21 and the collector 22 is less than 10mm, the discharge is intense, the danger is liable to occur, and further the ignition protection is liable to be caused. Therefore, the distance between the generating electrode 21 and the collector 22 is set within the range of 10 mm-30 mm, the disposable filtration efficiency of the electrostatic precipitator 20 on dust of 0.3 μm can be more than 90% during purification, and the bacterial killing rate of the electrostatic precipitator 20 on staphylococcus albus and the like can be more than 99% during disinfection, so that the purification and disinfection effects are better.

In this embodiment, the sterilizing device has a sterilizing mode and an air purifying mode, and when the sterilizing device is in the sterilizing mode, the distance between the generating electrode 21 and the collecting electrode 22 is H1, and when the sterilizing device is in the air purifying mode, the distance between the generating electrode 21 and the collecting electrode 22 is H2, wherein H1 < H2. When the sterilizing device is in the air purifying mode, the distance between the generating electrode 21 and the collecting electrode 22 is set in a proper range, so that the concentration of plasma and ozone generated by the electrostatic dust removing component 20 is in a proper range, the purifying effect is ensured, the energy consumption and ozone pollution are reduced, and the air purifying capacity is enhanced. When the sterilizing device is in a sterilizing mode, the distance between the generating electrode 21 and the collecting electrode 22 is closer, so that the concentration of plasma and ozone generated by the electrostatic dust removing component 20 is higher, and the rapid sterilization and disinfection of harmful microorganisms are realized. The test shows that: under the condition that the voltage of the high-voltage power supply is unchanged, the plasma concentration generated by the generating electrode 21 when the distance between the generating electrode 21 and the collector 22 is 10mm is more than 3 times of the plasma concentration generated by the generating electrode 21 when the distance between the generating electrode 21 and the collector 22 is 30mm, the purifying and sterilizing capacities are increased by times, the sterilizing rate on a plurality of viruses can reach 100%, the sterilizing capacity is stronger, and the rapid sterilization and disinfection on harmful microorganisms are realized; when the H2 is 30mm, the disposable filtering efficiency of the electrostatic dust removing component 20 on 0.3 micrometer dust can reach more than 90%, the efficient removal of indoor pollutants is realized, and when the sterilizing is performed, the bacterial killing rate of the electrostatic dust removing component 20 on staphylococcus albus and the like can reach more than 99%.

In this example, when the distance between the generator electrode 21 and the collector electrode 22 was 30mm, the voltage of the high-voltage power supply was adjusted, and it was found through numerous experiments that: when the voltage of the high-voltage power supply is 18kV, the disposable filtering efficiency of the electrostatic dust removing component 20 on 0.3 micrometer dust can reach more than 90%, and when the electrostatic dust removing component 20 is used for disinfection, the bacterial killing rate of the electrostatic dust removing component 20 on staphylococcus albus and the like can reach more than 99%; the plasma concentration generated by the generating electrode 21 when the voltage of the high-voltage power supply is 35kV is more than 2 times of the plasma concentration generated by the generating electrode 21 when the voltage of the high-voltage power supply is 18kV, and the purifying and sterilizing capacities are doubled. Therefore, in order to further enhance the purification ability and the sterilization ability, the voltage of the high-voltage power supply is set in the range of 18kV to 35 kV.

In this embodiment, the sterilizing device has a sterilizing mode and an air purifying mode, when the sterilizing device is in the sterilizing mode, the output voltage of the high-voltage power supply is a first voltage, and when the sterilizing device is in the air purifying mode, the output voltage of the high-voltage power supply is a second voltage, and the first voltage is higher than the second voltage. When the sterilizing device is in the air purifying mode, the output voltage of the high-voltage power supply is set in a proper range, so that the concentration of plasma and ozone generated by the electrostatic dust removing component 20 is in a proper range, the purifying effect is ensured, the energy consumption and ozone pollution are greatly reduced, and the air purifying capacity is enhanced. When the sterilizing device is in a sterilizing mode, the higher the output voltage of the high-voltage power supply is, the higher the concentration of plasma and ozone generated by the electrostatic dust removing component 20 is, and the sterilizing and disinfecting can be performed quickly and efficiently. The test shows that: under the condition that the distance between the generating electrode 21 and the collector 22 is unchanged, the plasma concentration generated by the generating electrode 21 when the first voltage is 35kV is more than 2 times of the plasma concentration generated by the generating electrode 21 when the voltage of the high-voltage power supply is 18kV, the purifying and sterilizing capacities are doubled, and the sterilizing and sterilizing are faster and more efficient; when the second voltage is 18kV, the disposable filtering efficiency of the purifying component on 0.3 micrometer dust can reach more than 90%, the purifying capability is moderate, the energy consumption and ozone pollution are greatly reduced, and the killing rate of the purifying component on staphylococcus albus and other bacteria can reach more than 99% during disinfection.

In this embodiment, the casing 10 is provided with an air inlet and an air outlet which are communicated with the inner cavity, the sterilizing device further comprises a fan 30 which is close to the air outlet, and the electrostatic dust removing component 20 is arranged on one side of the fan 30 which is far away from the air outlet. Under the action of the fan 30, indoor air flows into the inner cavity through the air inlet, the electrostatic dust removal component 20 purifies and disinfects the air, and the purified and disinfected air flows out through the air outlet, so that the indoor air is purified and disinfected.

In this embodiment, the disinfection apparatus further comprises a filter screen 40 disposed close to the air inlet, and the electrostatic precipitator section 20 is disposed on a side of the filter screen 40 remote from the air inlet. The filter screen 40 performs preliminary filtration on large particulate matters in the air, and prevents the large particulate matters in the air from blocking other components to affect the purification efficiency.

In this embodiment, the air inlet is provided on the bottom of the housing 10, the air outlet is provided on the top of the housing 10, and the blower 30 is located above the electrostatic precipitator section 20. Of course, the positions of the air inlet and the air outlet need to be set according to specific situations, and are not limited to the specific situations.

In the present embodiment, the sterilizing device further includes an ozone removing part 50, and the ozone removing part 50 is disposed between the blower 30 and the electrostatic precipitator part 20. The ozone removal unit 50 can remove ozone after sterilization, and prevent the ozone from flowing out to cause harm to the user. Specifically, the ozone reduction unit 50 is an ozone reduction net that can decompose ozone after sterilization into oxygen. Of course, the ozone removing member 50 may have other structures, and is not limited thereto.

In the present embodiment, the sterilizing apparatus further includes a dust detecting part 60 and a controller, the dust detecting part 60 being disposed in the inner cavity and detecting the concentration of dust, the controller being electrically connected to the dust detecting part 60 and the electrostatic precipitator part 20. The dust detecting part 60 transmits the detected dust concentration signal to a controller, which controls whether the electrostatic precipitator part 20 operates according to the detected dust concentration. When the dust concentration detected by the dust detecting part 60 is equal to or higher than the preset dust concentration, the air purifying mode is turned on to achieve air purification. When the dust concentration detected by the dust detecting part 60 is lower than the preset dust concentration, the air cleaning mode is turned off. Wherein the preset dust concentration is 35 mug/m ³. The dust detection part 60 is a dust sensor, and has convenient use and low cost.

In this embodiment, the dust detection part 60 is arranged close to the air inlet, where the dust concentration corresponds to the dust concentration of the indoor air outside the disinfection device. Of course, the dust detecting part 60 may be provided on the outer wall of the housing.

In this embodiment, the sterilizing device further includes a rack 70 for placing articles to be sterilized, and the plasma kills harmful microorganisms on the articles to be sterilized and in the air, so that not only can the harmful microorganisms on the articles to be sterilized, but also the harmful microorganisms in the air be sterilized, and the function is better, and the integration level is higher.

In this embodiment, the sterilizing apparatus further includes a weight detecting part 80, the weight detecting part 80 is provided on the rack 70 and is used to detect the weight of the rack 70, and the controller is electrically connected to the weight detecting part 80 and the electrostatic precipitator part 20. The weight detecting part 80 transmits the detected weight signal to a controller, which controls whether the electrostatic precipitator part 20 operates according to the detected weight. When the weight detected by the weight detecting part 80 is greater than the first preset weight or the second preset weight or more is added, the sterilization mode is turned on; when the weight detected by the weight detecting part 80 is equal to or less than the preset weight or the second preset weight is increased or less, the sterilization mode is turned off. The weight detecting part 80 is a weight sensor, and is convenient to use and low in cost.

In this embodiment, the article to be sterilized is tableware, and the sterilizing device is a sterilizing cabinet. Of course, the article to be sterilized may also be an article to be sterilized.

In this embodiment, the disinfection cabinet has three modes, which are an air purifying mode, a disinfection mode and an automatic mode, and specifically includes the following steps:

when the user selects the air purification mode, the distance between the generating electrode 21 and the collector 22 is 30mm, and meanwhile, the generating electrode 21 is connected with 18kV voltage, so that the energy consumption and ozone pollution are greatly reduced while the purification effect is ensured, and the air purification capability is enhanced.

When a user selects a sterilization mode, the fan runs at the lowest gear, the generating electrode 21 and the collecting electrode 22 can be pulled down to be close to a distance from an original 30mm to 10mm by a driving mechanism between the generating electrode 21 and the collecting electrode, and meanwhile, the generating electrode 21 is connected with a voltage of 35kV to generate plasma and ozone with higher concentration, so that rapid sterilization and disinfection of a target object are realized.

When a user selects an automatic mode, the automatic modes are an air purification mode and a disinfection mode respectively, a dust sensor detects the dust concentration (namely the particle concentration) in the current running environment of the disinfection cabinet, when the dust concentration is detected to be more than or equal to 35 mug/m ³, the automatic mode is automatically started, a fan runs at the highest grade, the rapid dust purification is realized, and when the indoor dust concentration is lower than 35 mug/m ³, the automatic mode is closed; the weight sensor detects the weight of the porous commodity shelf, when the weight sensor detects that the weight is increased by 1Kg or more, the disinfection mode is automatically started, the fan runs at the lowest gear, and high-efficiency sterilization and disinfection are realized through high-concentration plasmas and ozone.

The lowest gear and the highest gear respectively mean that the rotating speed of the fan is at the lowest rotating speed and the highest rotating speed.

The sterilizing cabinet capable of purifying air with high efficiency adopts high-concentration plasma and ozone for sterilization and purification, on one hand, the sterilizing cabinet can meet the requirement of rapid sterilization of users, can intelligently switch sterilization modes, rapidly kill all microorganisms such as bacteria and viruses, realize rapid sterilization and disinfection, completely realize high-efficiency long-acting pollutant removal, has stronger sterilization and disinfection capacity than the sterilizing cabinet which only uses ozone in the prior art, and greatly enhances the user experience of household appliances; on the other hand, the dust-removing device can meet the requirement of a user on rapid dust removal, plays a role in rapidly purifying air, and can purify indoor air, so that the dust-removing device is really multipurpose.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. The two electrodes are used as the purifying part and the sterilizing part, plasma and ozone with different concentrations can be intelligently generated according to different modes, so that the air purifier can be used as an air purifier, the bacteria can be truly killed, the sterilizing effect is achieved, the efficient sterilization and disinfection can be achieved, the function is better, the air can be treated more efficiently, the processing capacity is stronger, the integration level is higher, the multiple functions are realized, and the problems of long idle time and low utilization rate of a single-function household appliance are effectively solved.

2. The generating electrode and/or the collector are/is driven to move through the driving mechanism, and compared with the cleaning mode, the higher the voltage is, the closer the distance between the generating electrode and the collector is, the higher the concentration of plasma and the concentration of ozone are, and the more rapid and efficient sterilization and disinfection are realized.

3. The disinfection cabinet has an automatic mode, reduces the operation steps of users, and has higher intelligent degree.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims

1. A sterilizing device, comprising:

a housing (10) having an interior cavity;

The electrostatic dust removing component (20) is arranged in the inner cavity, dust in the inner cavity is removed by plasma generated by the electrostatic dust removing component (20) and harmful microorganisms are killed, and ozone generated by the electrostatic dust removing component (20) kills the harmful microorganisms;

The electrostatic dust collection component (20) comprises a generating electrode (21) and a collecting electrode (22) which are arranged oppositely, and the sterilizing device also comprises a high-voltage power supply connected with the generating electrode (21);

The disinfection device further comprises a drive mechanism which drives the generator pole (21) and/or the collector pole (22) to move so as to change the distance between the generator pole (21) and the collector pole (22).

2. A disinfection device as claimed in claim 1, wherein the distance between said generator pole (21) and said collector pole (22) is in the range of 10-30 mm.

3. A disinfection device as claimed in claim 1 or 2, and having a disinfection mode and an air cleaning mode, wherein the distance between said generator pole (21) and said collector pole (22) is H1 when said disinfection device is in said disinfection mode, and wherein the distance between said generator pole (21) and said collector pole (22) is H2 when said disinfection device is in said air cleaning mode, wherein H1 < H2.

4. A disinfection device as claimed in claim 3, wherein H1 is 10mm and/or H2 is 30mm.

5. A disinfection apparatus as claimed in claim 1, wherein the voltage of said high voltage power supply is in the range 18kV to 35 kV.

6. A disinfection device as claimed in claim 1 or 5, wherein said disinfection device has a disinfection mode and an air cleaning mode, wherein said high voltage power supply has a first voltage output when said disinfection device is in said disinfection mode, and wherein said high voltage power supply has a second voltage output when said disinfection device is in said air cleaning mode, said first voltage being higher than said second voltage.

7. A disinfection device as claimed in claim 6, wherein said first voltage is 35kV and/or said second voltage is 18kV.

8. A disinfection apparatus as claimed in claim 1 or 2, wherein said housing (10) is provided with an air inlet and an air outlet communicating with said cavity, said disinfection apparatus further comprising a fan (30) arranged adjacent said air outlet, said electrostatic precipitator means (20) being arranged on a side of said fan (30) remote from said air outlet.

9. A disinfection apparatus as claimed in claim 8, and comprising a filter screen (40) arranged close to said air inlet, said electrostatic precipitator component (20) being arranged on a side of said filter screen (40) remote from said air inlet, and/or said air inlet being arranged on the bottom of said housing (10), said air outlet being arranged on top of said housing (10), said fan (30) being located above said electrostatic precipitator component (20), and/or said disinfection apparatus further comprising a ozone removal component (50), said ozone removal component (50) being arranged between said fan (30) and said electrostatic precipitator component (20).

10. A disinfection apparatus as claimed in claim 1 or 2, and comprising a dust detection member (60) and a controller, said dust detection member (60) being arranged in said cavity for detecting the concentration of said dust, said controller being electrically connected to said dust detection member (60) and said electrostatic precipitator member (20).

11. A sterilizing device according to claim 1 or 2, characterized in that the sterilizing device further comprises a shelf (70) for placing the articles to be sterilized, the plasma being used for killing harmful microorganisms on the articles to be sterilized and in the air.

12. A sterilizing device according to claim 11, characterized in that the sterilizing device further comprises a weight detecting means (80) and a controller, the weight detecting means (80) being arranged on the rack (70) for detecting the weight of the rack (70), the controller being electrically connected to the weight detecting means (80) and the electrostatic precipitator means (20), and/or the article to be sterilized being a cutlery.