CN117781396A - Air purification assembly, air purifier and control method thereof - Google Patents

Abstract

The invention relates to the technical field of air purification, and discloses an air purification assembly, an air purifier and a control method thereof, wherein the air purification assembly comprises: an air duct; the high-voltage discharge module is arranged at the air inlet and is suitable for ionizing air to eliminate peculiar smell in the air; the ozone treatment module is positioned at the downstream of the high-voltage discharge module and is suitable for reducing ozone generated in the process of ionizing air by the high-voltage discharge module to a preset range; the ozone treatment module comprises a plurality of microwave treatment units for treating ozone step by step, and the microwave treatment units work independently or cooperatively so as to reduce the ozone to different preset ranges. According to the invention, through the plurality of microwave treatment units, ozone is removed in a microwave heating mode, so that the ozone removal device has a good ozone removal effect, can be reused, reduces the cost, can control the concentration of ozone in different ranges, and effectively solves the problems of high cost and uncontrollable ozone removal effect in the prior art due to the use of the ozone reduction net.

Description

Air purification assembly, air purifier and control method thereof

Technical Field

The invention relates to the technical field of air purification, in particular to an air purification assembly, an air purifier and a control method thereof.

Background

With the improvement of living standard, the air purifier has become a necessary household appliance for many families gradually, and researches show that the peculiar smell in the air can be effectively removed by utilizing the glow discharge principle. Specifically, glow discharge generally ionizes and destroys harmful gases such as TVOC and VOC in the air by providing a high-voltage alternating voltage of 3KV-4KV for a discharge electrode, so that the harmful gases are catalytically degraded to achieve the effect of removing peculiar smell, and ozone is generated in a high-voltage environment. In the prior art, ozone is generally generated in the process of removing and purifying air by utilizing the ozone reduction net, however, the ozone reduction net is simply utilized, so that the ozone removal effect is uncontrollable, the ozone reduction net also belongs to consumable materials, the ozone reduction net needs to be replaced regularly, and the cost is relatively high.

Disclosure of Invention

In view of the above, the invention provides an air purifying assembly, an air purifier and a control method thereof, which are used for solving the problems of high cost and uncontrollable ozone removing effect in the prior art by utilizing an ozone reduction net.

In a first aspect, the present invention provides an air cleaning assembly comprising:

the air duct is provided with an air inlet and an air outlet;

The high-voltage discharge module is arranged at the air inlet and is suitable for ionizing air to eliminate peculiar smell in the air;

the ozone treatment module is arranged in the air duct and positioned at the downstream of the high-voltage discharge module, and is suitable for reducing ozone generated in the process of ionizing air by the high-voltage discharge module to a preset range;

the ozone treatment module comprises a plurality of microwave treatment units for treating ozone step by step, and the microwave treatment units work independently or cooperatively so as to reduce the ozone to different preset ranges.

The beneficial effects are that: because ozone itself is extremely unstable, very easily by the decomposition under the high temperature condition, consequently, this embodiment utilizes the above-mentioned characteristic of ozone, heats the air after the high voltage discharge module purifies through the microwave, and under high temperature environment, ozone very easily reduces into oxygen to realize getting rid of ozone, microwave heating does not belong to the consumptive material moreover, can recycle, long service life, reduce cost. In addition, through the multistage microwave processing unit that sets up, accessible control a plurality of microwave processing units work alone or collaborative work come control ozone concentration, not only can realize thoroughly getting rid of because the excessive ozone that high-voltage discharge module produced, because ozone still has disinfection and sterilization's effect in addition, can also realize controlling ozone concentration in the scope of predetermineeing, reach the purpose that utilizes ozone to carry out secondary disinfection and sterilization, the effectual ozone that utilizes the ozone reduction net to get rid of among the prior art, have the cost higher, the uncontrollable problem of ozone removal effect.

In an alternative embodiment, an odor removing cavity and a plurality of ozone treatment cavities are sequentially formed in the air duct in a separation mode along the air flow direction;

the high-voltage discharge module is arranged in the odor removing cavity, and the microwave treatment units are arranged in the ozone treatment cavities in a one-to-one correspondence manner.

The beneficial effects are that: through dividing the peculiar smell removal chamber and a plurality of ozone treatment chamber that form in the wind channel, realize all integrating high-pressure discharge module and a plurality of microwave processing unit in the wind channel for compactness and the integrated level of structure are higher, in addition through setting up high-pressure discharge module in the peculiar smell removal intracavity that is located ozone treatment chamber upper reaches, ensure that the ozone that high-pressure discharge module produced must flow through ozone treatment chamber, just can follow the air outlet and discharge after microwave processing unit heating decomposes, avoid high-pressure discharge module to set up outside the wind channel, ozone to the problem of diffusion influence treatment effect all around.

In an alternative embodiment, the ozone treatment chamber comprises a primary ozone treatment chamber and a secondary ozone treatment chamber;

the microwave treatment unit comprises a first microwave treatment unit arranged in the first-stage ozone treatment cavity and a second microwave treatment unit arranged in the second-stage ozone treatment cavity.

The beneficial effects are that: when the user has the ozone disinfection and sterilization requirements, the first microwave processing unit is controlled to work, the second microwave processing unit is not operated, and the concentration of ozone is controlled within a set interval range, so that the aim of secondary disinfection and sterilization by utilizing ozone is fulfilled; when the user is useless in ozone sterilization, the first microwave processing unit and the second microwave processing unit are controlled to work simultaneously, the ozone concentration value is controlled to be far lower than a critical value harmful to human bodies, the purpose of eliminating ozone is achieved, the concentration of ozone can be controlled more effectively by adopting two sets of microwave processing units, the regulation and control precision can be increased by means of two cavity classification regulation, and the purpose of saving cost can be achieved while the ozone concentration can be effectively controlled.

In an alternative embodiment, the deodorizing cavity, the first-stage ozone treatment cavity and the second-stage ozone treatment cavity are sequentially communicated, and the ozone treatment module further comprises:

the first ozone sensor is arranged at the air outlet end of the deodorizing cavity and is suitable for detecting the concentration value of ozone in the air treated by the high-voltage discharge module;

the second ozone sensor is arranged at the air outlet end of the first-stage ozone treatment cavity and is suitable for detecting the concentration value of ozone in the air treated by the first microwave treatment unit;

The third ozone sensor is arranged at the air outlet end of the secondary ozone treatment cavity and is suitable for detecting the concentration value of ozone in the air treated by the second microwave treatment unit.

The beneficial effects are that: the first ozone sensor is arranged to monitor the concentration value of ozone in the air processed by the high-voltage discharge module, so that the subsequent first microwave processing unit and the second microwave processing unit can be controlled to work according to the concentration value of ozone detected by the first ozone sensor, for example, the concentration value of ozone detected by the first ozone sensor is far lower than a critical value harmful to human body, and the first microwave processing unit and the second microwave processing unit can be controlled not to work; the working power of the first microwave processing unit can be increased or the wind speed can be reduced when the concentration value of the ozone detected by the first ozone sensor is higher, so that the ozone treatment effect can be improved. And can also be according to the ozone concentration value of the air-out end of first level ozone treatment chamber and second level ozone treatment chamber that second ozone sensor and third ozone sensor monitored respectively, come dynamic adjustment first microwave processing unit and second microwave processing unit's work or wind speed, ensure that ozone concentration can drop to the default, satisfy user's user demand.

In an alternative embodiment, the microwave processing unit comprises:

a microwave generator adapted to microwave heat the ozone treatment chamber to decompose ozone in the ozone treatment chamber;

the temperature sensing component is arranged in the ozone treatment cavity and is suitable for detecting temperature information in the ozone treatment cavity.

The beneficial effects are that: the microwave processing unit adopts the design of the microwave generator and the temperature sensing component, the temperature sensing component can detect the temperature in the ozone processing cavity, the temperature in the ozone processing cavity is controlled in a preset temperature range through the temperature sensing component to decompose ozone, in addition, the temperature in the ozone processing cavity can also be reflected from the side and monitor the working state of the microwave generator, for example, when the temperature sensing component detects that the temperature in the ozone processing cavity is lower than a normal value, the possible fault of the microwave generator can be deduced, and the power of the microwave generator can be dynamically regulated through the temperature information fed back by the temperature sensing component, for example, when the detected ozone concentration is higher and the temperature in the ozone processing cavity is lower, the microwave generator can be controlled to increase the power, so that the ideal ozone removal effect can be ensured.

In an alternative embodiment, the air cleaning assembly further comprises:

The fan is arranged at the air inlet of the air duct and is suitable for driving air to flow from the air inlet to the air outlet.

The beneficial effects are that: the fan that can control the air through setting up flows along the direction of air duct from the air intake to the air outlet to can also control the velocity of flow of wind through the rotational speed of control fan, thereby regulate and control ozone concentration, for example when detecting the position ozone concentration of the air-out end of ozone treatment chamber and being higher, then control fan rotational speed reduces, makes wind energy slowly pass through ozone treatment chamber, increases the heating duration of ozone, thereby improves ozone removal effect.

In a second aspect, the present invention also provides an air purifier comprising a housing and an air purification assembly of any of the above embodiments disposed within the housing, the air purifier having an odor removal mode and an ozone sterilization mode.

In a third aspect, the present invention further provides a control method of an air purifier, which is applicable to the air purifier of any one of the above embodiments, where the ozone treatment module includes m microwave treatment units, and the control method includes:

controlling the high-voltage discharge module to start;

judging whether the air purifier starts an ozone sterilization mode:

if yes, controlling the first n pieces of the m microwave processing units to work, and reducing the ozone concentration to a first preset range;

If not, controlling all the m microwave treatment units to work, and reducing the ozone concentration to a second preset range;

wherein m is more than or equal to 2, m is more than n is more than 0, and the first preset range is more than the second preset range.

The beneficial effects are that: because ozone has the function of sterilizing and disinfecting the air, when the concentration of the ozone is in a first preset range, the ozone is harmless to human bodies and can disinfect and disinfect; when the ozone concentration is in the second preset range, the ozone is far below a critical value harmful to human body, and when the ozone concentration is in the range, the ozone concentration is small and basically not perceived by users. Therefore, when the air purifier receives the signal for starting the deodorizing mode, the high-voltage discharging module is controlled to start, if the user selects the ozone sterilization mode, the microwave processing unit is controlled to work so as to reduce the ozone concentration to a first preset range, ozone is controlled to be within a harmless range for human bodies, ozone generated by the high-voltage discharging module is utilized for sterilization, full utilization of resources is realized, and energy consumption is saved; if the user does not select the ozone sterilization mode, the ozone generated by the high-voltage discharge module is used for controlling all microwave processing units to work so as to reduce the concentration of the ozone to be within a lower second preset range, and the purpose of eliminating the ozone is achieved.

In an alternative embodiment, the ozone treatment module includes a first microwave treatment unit and a second microwave treatment unit, and the control method specifically includes:

the ozone treatment module comprises a first microwave treatment unit and a second microwave treatment unit, and the control method specifically comprises the following steps:

when the air purifier starts an ozone sterilization mode, the first microwave processing unit is controlled to work, the second microwave processing unit is controlled not to work, and the ozone concentration is reduced to a first preset range;

when the air purifier is not started in the ozone sterilization mode, controlling the first microwave processing unit and the second microwave processing unit to work, and reducing the ozone concentration to a second preset range;

in the working process of the first microwave processing unit, the power of a microwave generator of the first microwave processing unit is dynamically regulated according to the detected ozone concentration value at the air outlet end of the odor removal cavity and/or the detected temperature information in the primary ozone processing cavity.

The beneficial effects are that: when the ozone treatment module is started, a first ozone sensor arranged at the air outlet end of the deodorizing cavity continuously detects flowing air, when the concentration of ozone is detected to exceed the maximum value of a first preset range, the first microwave generator is controlled to work, at the moment, the working power of the first microwave generator can be adjusted through feedback of a first temperature sensing component, different temperatures detected by the first temperature sensing component represent different working powers, and meanwhile, the working power of the first microwave generator can be dynamically adjusted through the concentration of ozone detected by the first ozone generator.

In an alternative embodiment, when the air purifier does not activate the ozone sterilization mode, the following steps are also performed:

in the working process of the second microwave treatment unit, the ozone concentration value of the air outlet end of the secondary ozone treatment cavity is obtained in real time;

and judging whether the ozone concentration value is larger than the maximum value of the second preset range:

if yes, controlling to reduce the wind speed and/or controlling to increase the power of the microwave generator of the second microwave processing unit; if not, the wind speed is controlled to be unchanged and/or the microwave generator of the second microwave processing unit is controlled to work normally.

The beneficial effects are that: in the working process of the second microwave treatment unit, the ozone concentration value at the air outlet end of the second-stage ozone treatment cavity is monitored in real time through the third ozone sensor, if the ozone concentration value is judged to be larger than the maximum value T0 of the second preset range, the current ozone removal force is insufficient, the working power of the second microwave generator is required to be increased, the temperature of the second-stage ozone treatment cavity is increased, the ozone decomposition effect is further improved, or the rotating speed of the fan is reduced, so that the air slowly passes through the second-stage ozone treatment cavity, the action time of ozone and microwaves in the air is prolonged, the ozone treatment effect is further improved, and the ozone concentration in the air discharged from the second-stage ozone treatment cavity is ensured to be lower than T0.

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 is a schematic diagram of an air purification assembly in accordance with an embodiment of the present invention;

FIG. 2 is a cross-sectional view of an air purification assembly at a baffle location in an embodiment of the present invention;

FIG. 3 is a schematic flow chart of a control method of a first implementation of the air purifier according to the embodiment of the present invention;

FIG. 4 is a schematic flow chart of a control method of a second implementation of the air purifier according to the embodiment of the present invention;

FIG. 5 is a schematic flow chart of a control method of a third embodiment of an air purifier according to an embodiment of the present invention;

FIG. 6 is a schematic flow chart of a control method of a fourth implementation of the air purifier according to the embodiment of the present invention;

FIG. 7 is a schematic flow chart of a control method of a fifth implementation of the air purifier according to the embodiment of the present invention;

Fig. 8 is a schematic flow chart of a control method of a sixth implementation of the air purifier according to the embodiment of the present invention.

Reference numerals illustrate:

10. an air duct; 101. an air inlet; 102. an air outlet; 103. a partition plate; 104. a communication port; 11. an odor removing cavity; 12. a primary ozone treatment chamber; 13. a secondary ozone treatment chamber; 20. a high voltage discharge module; 30. an ozone treatment module; 31. a first microwave treatment unit; 311. a first microwave generator; 312. a first temperature sensing member; 32. a second microwave treatment unit; 321. a second microwave generator; 322. a second temperature sensing member; 33. a first ozone sensor; 34. a second ozone sensor; 35. and a third ozone sensor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. 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 "upper", "lower", "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 apparatus or element referred to must have a specific orientation, be constructed 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 "connected," "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.

According to the research, the peculiar smell in the air is effectively removed by utilizing the glow discharge principle, but ozone is generated at the same time, if the peculiar smell removal effect is to be achieved by utilizing the glow discharge principle, the voltage of the ozone must reach 3KV-4KV, and the peculiar smell removal effect is achieved by providing high-voltage alternating voltage of 3KV-4KV for a discharge electrode, so that the ozone is generated in a high-voltage environment, and the ozone is harmful to human bodies, so that the ozone removal is an urgent problem to be solved while the peculiar smell removal efficiency is ensured.

In the related art, the ozone is removed by utilizing the ozone reduction net, so that the cost is high, the occupied space is large, the ozone removal effect of the ozone reduction net is common, the ozone reduction net also belongs to a consumable material, and the reduction net needs to be replaced periodically. And if ozone is removed only through the ozone reduction net, the ozone removal effect is also uncontrollable, for example, some users want to utilize the generated ozone to sterilize and disinfect the ozone concentration, the ozone concentration needs to be relatively high, some users want to remove the ozone as much as possible, the ozone concentration needs to be relatively low, and the ozone reduction net cannot be regulated and controlled, so that the ozone concentration cannot be well controlled.

Embodiments of the present invention are described below with reference to fig. 1 to 8.

According to an embodiment of the present invention, in one aspect, the present invention provides an air cleaning assembly including an air duct 10, a high voltage discharge module 20, and an ozone treatment module 30.

As shown in fig. 1 and 2, the air duct 10 has an air inlet 101 and an air outlet 102; the high-voltage discharge module 20 is arranged at the air inlet 101 and is suitable for ionizing air to eliminate peculiar smell in the air; the ozone treatment module 30 is disposed in the air duct 10 and downstream of the high-voltage discharge module 20, and is adapted to reduce ozone generated during the air ionization process of the high-voltage discharge module 20 to a preset range; the ozone treatment module 30 includes a plurality of microwave treatment units for treating ozone step by step, and the plurality of microwave treatment units are operated individually or cooperatively to reduce ozone to different preset ranges.

In the above embodiment, since ozone itself is extremely unstable and is easily decomposed at high temperature, this embodiment uses the above characteristics of ozone to heat the air purified by the high-voltage discharge module 20 by microwaves, and ozone is easily reduced to oxygen in a high-temperature environment, thereby removing ozone, and microwave heating is not a consumable material, and can be repeatedly used, and has a long service life and reduced cost. In addition, through the multistage microwave processing unit that sets up, accessible control a plurality of microwave processing units work alone or collaborative work come control ozone concentration, not only can realize thoroughly getting rid of because the excessive ozone that high-voltage discharge module 20 produced, and because ozone still has disinfection's effect, can also realize controlling ozone concentration in preset within range, reach the purpose that utilizes ozone to carry out secondary disinfection, the effectual ozone that utilizes the ozone reduction net to get rid of among the prior art, there is the cost higher, the uncontrollable problem of ozone removal effect.

In the above embodiment, the high voltage discharge module 20 is configured to achieve the deodorizing effect by providing the discharge electrode with a high voltage ac voltage of 3KV-4KV by using glow discharge principle, and destroying the TVOC (various volatile organic compounds) and VOC (volatile organic compounds) gases in the air by high voltage ionization, however, the deodorizing effect is achieved while excessive ozone is generated in the high voltage environment, so that the ozone generated by the high voltage discharge module 20 can be removed by the ozone treatment module 30 provided in this embodiment, or the ozone can be reduced to the range of the set interval to achieve the sterilizing effect by using ozone.

Further, the high-voltage discharge module 20 may be disposed outside the air duct 10 or inside the air duct 10, for purifying the air flowing through the air duct 10, and the specific installation position of the high-voltage discharge module 20 is not limited in this embodiment, as long as the high-voltage discharge module 20 is located at the air inlet 101 to ensure that the air inlet of the air duct 10 is ionized and the odor can be removed.

Preferably, the high voltage discharge module 20 is disposed in the air duct 10 and is located at an end near the air inlet 101.

In this embodiment, the ozone concentration is inversely proportional to the number of the microwave treatment units, and when all the microwave treatment units are in operation, the ozone will heat the ozone step by step when flowing through the air duct 10, so as to improve the ozone treatment effect and reduce the ozone concentration to the minimum. When the single or part of microwave treatment units work, the ozone concentration is larger than that when all the microwave treatment units work, and when the ozone is used for disinfection, the single or part of microwave treatment units can be controlled to work, so that the ozone concentration is reduced to the range of the set interval. The "high voltage" in the high voltage discharge module 20 refers to "high voltage alternating current".

In some embodiments, an odor removing cavity 11 and a plurality of ozone treatment cavities are sequentially formed in the air duct 10 in a separation manner along the air flow direction; the high-voltage discharge module 20 is arranged in the odor removing cavity 11, and a plurality of microwave treatment units are arranged in a plurality of ozone treatment cavities in a one-to-one correspondence manner.

In the above embodiment, by dividing the odor removing cavity 11 and the plurality of ozone treating cavities formed in the air duct 10, the high-voltage discharging module 20 and the plurality of microwave treating units are integrated in the air duct 10, so that the compactness and integration degree of the structure are higher.

In some embodiments, the ozone treatment chamber includes a primary ozone treatment chamber 12 and a secondary ozone treatment chamber 13; the microwave treatment unit includes a first microwave treatment unit 31 disposed in the primary ozone treatment chamber 12 and a second microwave treatment unit 32 disposed in the secondary ozone treatment chamber 13.

In the above embodiment, the two microwave processing units are sequentially disposed in the first-stage ozone processing chamber 12 and the second-stage ozone processing chamber 13, when the user has an ozone disinfection and sterilization requirement, the first microwave processing unit 31 is controlled to work, the second microwave processing unit 32 is not operated, and the ozone concentration is controlled within a set interval range, so that the purpose of performing secondary disinfection and sterilization by ozone is achieved; when the user does not use ozone to sterilize, the first microwave processing unit 31 and the second microwave processing unit 32 are controlled to work simultaneously, the ozone concentration value is controlled to be far lower than the critical value harmful to human body, the purpose of eliminating ozone is achieved, the concentration of ozone can be controlled more effectively by adopting two sets of microwave processing units, the regulation and control precision can be increased by means of two cavity classification regulation, and the purpose of saving cost can be achieved while the ozone concentration can be effectively controlled.

In some embodiments, the odor removal chamber 11, the primary ozone treatment chamber 12, and the secondary ozone treatment chamber 13 are in communication in sequence, and the ozone treatment module 30 further includes a first ozone sensor 33, a second ozone sensor 34, and a third ozone sensor 35; the first ozone sensor 33 is arranged at the air outlet end of the deodorizing cavity 11 and is suitable for detecting the concentration value of ozone in the air treated by the high-voltage discharge module 20; the second ozone sensor 34 is arranged at the air outlet end of the first-stage ozone treatment cavity 12 and is suitable for detecting the concentration value of ozone in the air treated by the first microwave treatment unit 31; the third ozone sensor 35 is disposed at the air outlet end of the secondary ozone treatment chamber 13, and is adapted to detect the concentration of ozone in the air treated by the second microwave treatment unit 32.

In the above embodiment, the first ozone sensor 33 is provided to monitor the concentration value of ozone in the air treated by the high-voltage discharge module 20, so that the subsequent operation of the first microwave processing unit 31 and the second microwave processing unit 32 can be controlled according to the concentration value of ozone detected by the first ozone sensor 33, for example, the concentration value of ozone detected by the first ozone sensor 33 is far lower than a critical value harmful to human body, and neither the first microwave processing unit 31 nor the second microwave processing unit 32 can be controlled to operate; when the concentration of ozone detected by the first ozone sensor 33 is high, the operating power of the first microwave processing unit 31 can be increased or the wind speed can be reduced, thereby improving the ozone treatment effect. And the working or wind speed of the first microwave processing unit 31 and the second microwave processing unit 32 can be dynamically adjusted according to the ozone concentration values of the air outlet ends of the first-stage ozone processing cavity 12 and the second-stage ozone processing cavity 13 respectively monitored by the second ozone sensor 34 and the third ozone sensor 35, so that the ozone concentration can be ensured to be reduced to a preset value, and the use requirement of a user is met.

Optionally, a plurality of separators 103 are arranged in the air duct 10 along the air flow direction at intervals, the separators 103 are annular, the periphery of each separator 103 is fixedly arranged on the inner periphery of the air duct 10, an odor removing cavity 11 and an ozone treatment cavity are formed between two adjacent separators 103 or between each separator 103 and the air duct 10, and an opening in the middle of each annular separator 103 forms a communication port 104 between the odor removing cavity 11 and the ozone treatment cavity as well as between two adjacent ozone treatments.

Preferably, in this embodiment, three groups of partition boards 103 are arranged in the air duct 10 at intervals, a first group of partition boards 103 located at the air inlet end and the front end of the air duct 10 enclose to form an odor removing cavity 11, a first group of partition boards 103 and a second group of partition boards 103 enclose to form a first-stage ozone treatment cavity 12, and a second-stage ozone treatment cavity 13 encloses to form a second group of partition boards 103 and a third group of partition boards 103.

In some embodiments, the microwave treatment unit comprises a microwave generator and a temperature sensing component, the microwave generator being adapted to microwave heat the ozone treatment cavity to decompose ozone in the ozone treatment cavity; the temperature sensing component is arranged in the ozone treatment cavity and is suitable for detecting temperature information in the ozone treatment cavity.

In the above embodiment, the microwave processing unit adopts the design of the microwave generator and the temperature sensing component, the temperature sensing component can detect the temperature in the ozone processing cavity, the temperature in the ozone processing cavity is controlled in the preset temperature range through the temperature sensing component to decompose ozone, in addition, the temperature in the ozone processing cavity can also realize the side reflection and monitor the working state of the microwave generator, for example, when the temperature sensing component detects that the temperature in the ozone processing cavity is lower than the normal value, the possible fault of the microwave generator can be deduced, and the power of the microwave generator can be dynamically regulated through the temperature information fed back by the temperature sensing component, for example, when the detected ozone concentration is higher and the temperature in the ozone processing cavity is lower, the microwave generator can be controlled to increase the power, so that the ideal ozone removal effect can be ensured.

Specifically, the temperature sensing component is a temperature sensing bulb or a temperature controller, the air duct 10 has a cylindrical body, and the air inlet 101 and the air outlet 102 are disposed on both sides of the air duct 10 along the axial direction of the air duct 10. The temperature sensing component and the microwave generator are respectively arranged at two opposite sides of the inner cavity of the air duct 10 along the radial direction, so that the distance between the temperature sensing component and the microwave generator is further, the temperature sensing component and the microwave generator are prevented from being too close to each other, the accuracy of detection is influenced, the temperature value detected by the temperature sensing component can represent the temperature of the whole ozone treatment cavity more, and the temperature value is closer to the true value. The temperature of the ozone treatment cavity can be controlled within the range of 50-60 ℃ by the aid of the temperature sensing component, so that ozone can be decomposed.

Further, the first microwave processing unit 31 includes a first microwave generator 311 and a first temperature sensing member 312, and the second microwave processing unit 32 includes a second microwave generator 321 and a second temperature sensing member 322.

In some embodiments, the air cleaning assembly further comprises a fan disposed at the air inlet 101 of the air duct 10 and adapted to drive air from the air inlet 101 to the air outlet 102.

In the above embodiment, the air can be controlled to flow along the direction from the air inlet 101 to the air outlet 102 by the fan provided, and the flow rate of the air can also be controlled by controlling the rotation speed of the fan, so as to regulate and control the ozone concentration, for example, when the position of the air outlet end of the ozone treatment cavity is detected to have higher ozone concentration, the rotation speed of the fan is controlled to be reduced, so that the air can slowly pass through the ozone treatment cavity, the heating time of the ozone is increased, and the ozone removal effect is improved.

According to an embodiment of the present invention, in another aspect, there is provided an air purifier including a housing and the air purifying assembly of any one of the above embodiments disposed within the housing, the air purifier having an odor removal mode and an ozone sterilization mode.

When the air purifier starts the peculiar smell removing mode, the high-voltage discharging module 20 is started to remove peculiar smell in the air so as to purify the air; when the air purifier starts the ozone sterilization mode, the ozone treatment module 30 controls the ozone generated by the high-voltage discharge module 20 within a preset concentration range, so that the ozone generated by the high-voltage discharge module 20 can be utilized for sterilization, and resources are reasonably utilized; when the deodorizing mode is activated and the ozone sterilization mode is not activated, the ozone treatment module 30 cleans the ozone generated by the high-voltage discharge module 20 as much as possible.

According to an embodiment of the present invention, in another aspect, there is provided a control method of an air purifier, which is applicable to the air purifier of any one of the above embodiments, wherein the ozone treatment module 30 includes m microwave treatment units, and the control method includes the following steps, as shown in fig. 1 to 3:

step S101, controlling the high-voltage discharge module 20 to start;

Step S102, judging whether the air purifier starts an ozone sterilization mode or not:

if yes, go to step S103; if not, executing step S104;

step S103, controlling the first n pieces of the m microwave processing units to work, and reducing the ozone concentration to a first preset range;

step S104, controlling all the m microwave treatment units to work, and reducing the ozone concentration to a second preset range;

wherein m is more than or equal to 2, m is more than n is more than 0, and the first preset range is more than the second preset range.

In the above embodiment, since ozone has a sterilizing effect on air, when the concentration of ozone is in the first preset range, not only harmless to human body but also sterilizing can be performed; when the ozone concentration is in the second preset range, the ozone is far below a critical value harmful to human body, and when the ozone concentration is in the range, the ozone concentration is small and basically not perceived by users. Therefore, in this embodiment, when the air purifier receives the signal for starting the deodorizing mode, if the user selects the ozone sterilization mode when the high-voltage discharge module 20 is controlled to start, the control part of the microwave processing unit works to reduce the ozone concentration to the first preset range, control the ozone within the harmless range to the human body, and sterilize and disinfect by utilizing the ozone generated by the high-voltage discharge module 20, so as to fully utilize the resources and save the energy consumption; if the user does not select the ozone sterilization mode, the ozone generated by the high-voltage discharge module 20 is used to control all the microwave processing units to work so as to reduce the ozone concentration to be within a second preset range which is lower, and the purpose of eliminating ozone is achieved.

Optionally, the first preset range is set to (T0, T1), T1 is the maximum value of the first preset range, the second preset range is set to (0, T0), and T0 is the maximum value of the second preset range.

In some embodiments, the ozone treatment module 30 includes a first microwave treatment unit 31 and a second microwave treatment unit 32, and as shown in fig. 1, 2, and 4, the control method specifically includes the following steps:

step S201, when the air purifier starts an ozone sterilization mode, the first microwave processing unit 31 is controlled to work, the second microwave processing unit 32 is not controlled to work, and the ozone concentration is reduced to a first preset range;

step S202, when the air purifier does not start the ozone sterilization mode, controlling the first microwave processing unit 31 and the second microwave processing unit 32 to work and reducing the ozone concentration to a second preset range;

step S203, dynamically adjusting the power of the microwave generator of the first microwave processing unit 31 according to the detected ozone concentration value at the air outlet end of the deodorizing cavity 11 and/or the temperature information in the first-stage ozone processing cavity 12 in real time during the working process of the first microwave processing unit 31.

In the above embodiment, when the ozone treatment module 30 is started, the first ozone sensor 33 disposed at the air outlet end of the deodorizing cavity 11 continuously detects the flowing air, and when detecting that the ozone concentration exceeds the maximum value of the first preset range, the first microwave generator 311 is controlled to operate, at this time, the operating power of the first microwave generator 311 can be adjusted by the first temperature sensing component 312 in a feedback manner, and when the first temperature sensing component 312 detects different temperatures, the first temperature sensing component 312 represents different operating powers, and at the same time, the operating power of the first microwave generator 311 can be dynamically adjusted by the ozone concentration detected by the first ozone generator.

For example, when the ozone concentration value T2 detected by the first ozone generator is far higher than T1, the temperature in the primary ozone treatment cavity 12 is raised according to the temperature detected by the first temperature sensing component 312 and the cooperation of the first microwave generator 311, so as to ensure that the ozone concentration value at the air outlet end of the primary ozone treatment cavity 12 is continuously lower than the T1 value.

In some embodiments, as shown in connection with fig. 1, 2, and 5, when the air purifier does not activate the ozone sterilization mode, the following steps are also performed:

step 301, in the working process of the second microwave processing unit 32, acquiring an ozone concentration value of an air outlet end of the secondary ozone processing cavity 13 in real time;

step S302, judging whether the ozone concentration value is larger than the maximum value of the second preset range or not:

if yes, go to step S303; if not, executing step S304;

step S303, controlling to reduce the wind speed and/or controlling to increase the power of the microwave generator of the second microwave processing unit 32;

step S304 is to control the wind speed to be constant and/or to control the microwave generator of the second microwave processing unit 32 to work normally.

In the above embodiment, during the operation of the second microwave processing unit 32, the ozone concentration value at the air outlet end of the secondary ozone processing cavity 13 is monitored in real time by the third ozone sensor 35, if it is determined that the ozone concentration value is greater than the maximum value T0 in the second preset range, this indicates that the current ozone removal strength is insufficient, the working power of the second microwave generator 321 needs to be increased, the temperature of the secondary ozone processing cavity 13 is increased, and then the decomposition effect of ozone is improved, or the rotation speed of the fan is reduced, so that the air slowly passes through the secondary ozone processing cavity 13, the action time of ozone and microwaves in the air is prolonged, and then the ozone processing effect is improved, and the ozone concentration in the air discharged from the secondary ozone processing cavity 13 is ensured to be lower than T0.

Further, the wind speed is directly controlled by the fan, the main control of the CPU can directly control the rotating speed of the fan, and further the wind speed is controlled, when the rotating speed of the fan is increased, the wind speed is correspondingly increased, and otherwise, when the rotating speed of the fan is reduced, the wind speed is correspondingly reduced.

In some embodiments, as shown in fig. 1, 2, 6, and 8, when the air purifier starts the ozone sterilization mode, the following determination steps are further performed:

step S401, obtaining a first ozone concentration value of air processed by the high-voltage discharge module 20;

step S402, judging whether the first ozone concentration value is smaller than or equal to the maximum value T1 of a first preset range;

if yes, go to step S403; if not, executing step S404;

step S403, controlling the ozone treatment module 30 to be not operated;

step S404, controlling the ozone treatment module 30 to operate.

In the above embodiment, when the ozone sterilization mode is started, if the first ozone sensor 33 detects that the first ozone concentration value at the air outlet end of the deodorizing cavity 11 is smaller than or equal to the maximum value T1 of the first preset range, it indicates that the current ozone concentration does not exceed the first preset range, so that the sterilization requirement can be met, no further reduction is needed, and at this time, the ozone treatment module 30 is controlled not to work to avoid the problem of unnecessary resource waste.

In some embodiments, as shown in fig. 1, 2, 7, and 8, when the ozone sterilization mode is not activated, the following determination steps are further performed:

step S501, obtaining a first ozone concentration value of air processed by the high-voltage discharge module 20;

step S502, judging whether the first ozone concentration value is smaller than or equal to the maximum value T0 of the second preset range;

if yes, go to step S403; if not, executing step S404;

step S503, controlling the ozone treatment module 30 not to work;

step S504, the ozone treatment module 30 is controlled to work.

In the above embodiment, when the ozone sterilization mode is not started, if the first ozone sensor 33 detects that the first ozone concentration value at the air outlet end of the deodorizing cavity 11 is smaller than or equal to the maximum value T0 of the second preset range, it indicates that the current ozone concentration is lower, and the requirement is satisfied within the second preset range without further reduction, and at this time, the ozone treatment module 30 is controlled not to work to avoid the problem of unnecessary resource waste.

This embodiment is based on the improvement made in the construction and control method of the air purifier, which is currently available in air purifier products, regarding the use of ozone reduction nets for deodorizing the ozone at a high cost and may not be possible to eliminate.

In the following description of the structure and operation of the air cleaning assembly according to the present embodiment, the air cleaning assembly is composed of a high voltage discharge module 20 and a subsequent microwave processing unit, with reference to fig. 1, 2 and 8. The high voltage is under the action of high voltage alternating current of 3KV-4KV, the high voltage electrode can generate glow discharge effect, under the action of high voltage alternating current, the organic structure can be destroyed, a large amount of active and strong oxidizing particles are generated, peculiar smell can be eliminated, meanwhile, excessive ozone can be generated, the subsequent microwave treatment unit heats and decomposes ozone by heating air, the temperature in the ozone treatment cavity is controlled to be in the range of 50-60 ℃ through the temperature sensing component, the ozone concentration is controlled to be in the usable range through the ozone sensor, and then the ozone is discharged from the air duct 10, so that the effect of removing ozone is achieved.

When the air purifier is just started, the first ozone sensor 33 continuously detects flowing air, when the concentration of ozone exceeds a T1 value, the first microwave generator 311 is controlled to work, at the moment, the working gear or power of the first microwave generator 311 can be adjusted through feedback of the first temperature sensing component 312, different temperatures detected by the first temperature sensing component 312 represent different working rates of the first microwave generator 311, and meanwhile, the working power of the first microwave generator 311 can be dynamically adjusted through the concentration of ozone detected by the first ozone generator. When the concentration value of ozone detected by the first ozone sensor 33 exceeds T2 (T2 > T1), the temperature of the first-stage ozone treatment cavity 12 can be increased, the first temperature sensing part 312 is used for detecting the cooperation with the first microwave generator 311, the temperature in the first-stage ozone treatment cavity 12 is increased, and the detection value of the second ozone sensor is ensured to be continuously lower than the T1 value. The secondary ozone treatment cavity 13 where the second microwave generator 321 is located can treat the ozone in the air duct 10 again.

Ozone can be used for sterilization at an ozone concentration lower than T1 and greater than T0 because ozone has a sterilizing effect on air. So if the user has a need of sterilizing with ozone, the ozone sterilization mode can be started, in which the second microwave generator 321 is not operated, only the first microwave generator 311 is operated, and ozone is controlled to be sterilized and sterilized within a harmless range to human body by dynamically adjusting the temperature controller and the generator. If the user does not use ozone to sterilize, the second microwave generator 321 can start to work at this moment, under the dynamic adjustment of the second temperature sensing component 322 and the second microwave generator 321, the concentration value of ozone detected by the third ozone sensor 35 is guaranteed to be lower than T0 (T0 < T1), if the detection value of the third ozone sensor 35 is higher than T0 at this moment, the air speed can be properly reduced to control the flow rate or reduce the power of the second microwave generator 321, the temperature in the cavity of the secondary ozone treatment cavity 13 is increased, the concentration value of ozone finally passing through the air duct 10 is guaranteed to be lower than T0, the concentration value of ozone is controlled to be far lower than a critical value harmful to human body, and the ozone is basically not smelled by people. By utilizing the adjusting mode, the deodorizing net can save energy consumption under the condition of not using the deodorizing net while meeting the deodorizing requirement, and can dynamically adjust the concentration of ozone so as to meet different use requirements of users.

Although embodiments of the present invention have been described in connection with the accompanying drawings, various modifications and variations may be made by those skilled in the art without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the invention as defined by the appended claims.

Claims (10)

1. An air cleaning assembly, comprising:

the air duct (10) is provided with an air inlet (101) and an air outlet (102);

the high-voltage discharge module (20) is arranged at the air inlet (101) and is suitable for ionizing air to eliminate peculiar smell in the air;

the ozone treatment module (30) is arranged in the air duct (10) and positioned at the downstream of the high-voltage discharge module (20) and is suitable for reducing ozone generated in the process of ionizing air by the high-voltage discharge module (20) to a preset range;

the ozone treatment module (30) comprises a plurality of microwave treatment units for treating the ozone step by step, and the plurality of microwave treatment units work independently or work cooperatively to reduce the ozone to different preset ranges.

2. An air purification assembly according to claim 1, wherein an odor removal cavity (11) and a plurality of ozone treatment cavities are formed in the air duct (10) in a sequentially separated manner along the air flow direction;

The high-voltage discharge module (20) is arranged in the odor removing cavity (11), and the microwave treatment units are arranged in the ozone treatment cavities in a one-to-one correspondence manner.

3. An air cleaning assembly according to claim 2, wherein the ozone treatment chamber comprises a primary ozone treatment chamber (12) and a secondary ozone treatment chamber (13);

the microwave treatment unit comprises a first microwave treatment unit (31) arranged in the primary ozone treatment cavity (12) and a second microwave treatment unit (32) arranged in the secondary ozone treatment cavity (13).

4. An air cleaning assembly according to claim 3, wherein the deodorizing chamber (11), the primary ozone treatment chamber (12), and the secondary ozone treatment chamber (13) are sequentially communicated, and the ozone treatment module (30) further comprises:

the first ozone sensor (33) is arranged at the air outlet end of the deodorizing cavity (11) and is suitable for detecting the concentration value of ozone in the air treated by the high-voltage discharge module (20);

the second ozone sensor (34) is arranged at the air outlet end of the primary ozone treatment cavity (12) and is suitable for detecting the concentration value of ozone in the air treated by the first microwave treatment unit (31);

and a third ozone sensor (35) which is arranged at the air outlet end of the secondary ozone treatment cavity (13) and is suitable for detecting the concentration value of ozone in the air treated by the second microwave treatment unit (32).

5. An air cleaning assembly according to any one of claims 2 to 4, wherein the microwave treatment unit comprises:

a microwave generator adapted to microwave heat the ozone treatment chamber to decompose ozone in the ozone treatment chamber;

the temperature sensing component is arranged in the ozone treatment cavity and is suitable for detecting temperature information in the ozone treatment cavity.

6. The air purification assembly of any one of claims 1 to 4, further comprising:

the fan is arranged at the air inlet (101) of the air duct (10) and is suitable for driving air to flow from the air inlet (101) to the air outlet (102).

7. An air purifier comprising a housing and the air purification assembly of any one of claims 1 to 6 disposed within the housing, the air purifier having an odor removal mode and an ozone sterilization mode.

8. A control method of an air cleaner adapted to the air cleaner according to claim 7, wherein the ozone treatment module (30) is configured to include m microwave treatment units, the control method comprising:

controlling the high-voltage discharge module (20) to start;

Judging whether the air purifier starts an ozone sterilization mode:

if yes, controlling the first n pieces of the m pieces of microwave processing units to work, and reducing the ozone concentration to a first preset range;

if not, controlling all the m microwave treatment units to work, and reducing the ozone concentration to a second preset range;

wherein m is more than or equal to 2, m is more than n is more than 0, and the first preset range is more than the second preset range.

9. The control method of an air cleaner according to claim 8, wherein the ozone treatment module (30) comprises a first microwave treatment unit (31) and a second microwave treatment unit (32), the control method specifically comprising:

when the air purifier starts an ozone sterilization mode, the first microwave processing unit (31) is controlled to work, the second microwave processing unit (32) is controlled to be not operated, and the ozone concentration is reduced to a first preset range;

when the air purifier is not started in the ozone sterilization mode, the first microwave processing unit (31) and the second microwave processing unit (32) are controlled to work, and the ozone concentration is reduced to a second preset range;

in the working process of the first microwave processing unit (31), the power of a microwave generator of the first microwave processing unit (31) is dynamically regulated according to the detected ozone concentration value at the air outlet end of the deodorizing cavity (11) and/or the temperature information in the primary ozone processing cavity (12).

10. The control method of an air cleaner according to claim 9, wherein when the air cleaner does not activate the ozone sterilization mode, further comprising the steps of:

in the working process of the second microwave treatment unit (32), the ozone concentration value of the air outlet end of the secondary ozone treatment cavity (13) is obtained in real time;

and judging whether the ozone concentration value is larger than the maximum value of the second preset range:

if yes, controlling to reduce the wind speed and/or controlling to increase the power of the microwave generator of the second microwave processing unit (32); if not, the wind speed is controlled to be unchanged and/or the microwave generator of the second microwave processing unit (32) is controlled to work normally.