CN207081109U - air purifier - Google Patents

Abstract

The utility model discloses an air purifier, which comprises an outer shell, an inner shell, a fan and a filter screen, wherein the outer shell is limited with a cavity with an opening at the top end, and the cavity is used for containing a purifying liquid; the lower part of the inner shell is inserted into the cavity, the area of the inner shell inserted into the cavity is provided with an air inlet, and the area of the inner shell positioned outside the outer shell is provided with an air outlet; the fan is used for discharging air in the inner shell from the air outlet so as to enable the inner part of the inner shell to form negative pressure; the filter screen is the shell-shaped structure, and the lower part of cover locating the inner shell covers the air inlet of inner shell, and outside air or the interior purifying liquid of cavity get into the inner shell from the air inlet after filter purification through the filter screen. The utility model discloses a filter screen prefiltering purifies, and the purifying quality of air can be guaranteed to the mode of purifying liquid secondary purification, on the one hand, and on the other hand, under this purifying mode, need not adopt the high purifying effect but unable abluent HEPA high efficiency filter screen, and can adopt and can wash and circulated use's washing filter screen to reduce the purification cost.

Description

air purifier

technical field

The utility model relates to the technical field of air purification, in particular to an air purifier.

Background technique

Air purifiers, also known as air cleaners, air fresheners or purifiers, are mainly used to remove various pollutants in the air (generally including PM2.5, chemical smog, dust, pollen, bacteria, allergens, etc.), to improve Air cleanliness.

The air purifier mainly purifies the air through its internal filter. The traditional filter mainly uses HEPA high-efficiency filter made of PP filter paper, composite PP, PET filter paper, or glass fiber and other paper materials that cannot be cleaned. Although the HEPA high-efficiency filter has a good purification effect (generally, the purification rate can reach more than 90%), because it is made of the above-mentioned paper material, it cannot be cleaned and recycled. Therefore, in order to ensure the purification quality of the air purifier, after the air purifier has been used for a period of time (for example, one month), it is necessary to replace the HEPA high-efficiency filter to prevent the filter from clogging. The cost of HEPA high-efficiency filters is relatively high, and frequent replacements lead to high air purification costs.

Of course, the prior art also has water-washable filter screens such as PTFE filter screens. After using for a period of time, the water-washable filter screens can be cleaned and recycled to reduce costs. However, the filtering effect of the water-washed filter is poor, and the purification rate is generally only about 70%, which cannot meet the higher air purification requirements.

Utility model content

The main purpose of the utility model is to propose an air purifier, aiming at ensuring a high purification rate and reducing the cost of air purification.

In order to achieve the above object, the utility model proposes an air purifier, comprising:

an outer casing, the outer casing defines a chamber with an open top, and the chamber is used to hold a purification liquid;

Inner shell, the lower part of the inner shell is inserted into the cavity, the area where the inner shell is inserted into the cavity is provided with an air inlet, and the area where the inner shell is located outside the outer shell is provided with an air outlet;

A fan, which is used to discharge the air in the inner casing from the air outlet to form a negative pressure inside the inner casing; and

Filter screen, the filter screen is a sleeve-like structure, which is sleeved on the lower part of the inner shell and covers the air inlet of the inner shell. After the external air or the purification liquid in the chamber is filtered and purified by the filter screen, it enters the inner shell from the air inlet. shell.

The technical scheme of the utility model is provided with a filter net covering the air inlet at the lower part of the inner casing inserted into the chamber, and an air outlet is provided in the area outside the chamber of the inner casing, and a fan is arranged to transfer the air in the inner casing from the inner casing. Exhaust air outlet. Before use, add purification liquid to the chamber, so that the liquid level of the purification liquid in the chamber and the inner casing is slightly higher than the filter screen; when in use, the fan rotates and the air in the inner casing is discharged through the air outlet to form a negative pressure. At this time, under the negative pressure of the inner shell, the purification liquid in the chamber flows into the inner shell through the filter screen and the air inlet successively, so that the liquid level in the inner shell rises and the liquid level in the chamber drops. When the liquid level in the chamber After falling below the top of the air inlet (that is, at least part of the air inlet is exposed), the external air is initially filtered and purified by the filter, and then enters the purification liquid of the inner shell from the air inlet, and then under the action of buoyancy, After the purification liquid in the inner casing is purified twice, it rises and leaves the liquid level of the purification liquid in the inner casing, and is finally discharged from the inner casing by the fan from the air outlet, and repeats the work in this way to complete the air purification treatment. The utility model adopts the method of preliminary filtration and purification of the filter net and secondary purification of the purification liquid. On the one hand, the purification quality of the air can be guaranteed; HEPA high-efficiency filter, but washable and recyclable water-washable filter can be used to reduce the cost of purification. At the same time, water is a renewable resource with extremely low cost, which can reduce the cost of purification while ensuring the quality of purification. In addition, while the purification liquid performs secondary purification on the air, it can also increase the humidity of the air and has a humidification effect.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the utility model embodiment;

Fig. 2 is an exploded schematic view of an embodiment of the present invention.

Detailed ways

The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, vertical, counterclockwise, clockwise, Circumferential, radial, axial...), the directional indication is only used to explain the relative positional relationship, motion, etc. When the attitude changes, the directional indication changes accordingly.

In addition, if there is a description related to "first" or "second" in the embodiment of the present utility model, the description of "first" or "second" is only for the purpose of description, and should not be interpreted as an indication or Implying their relative importance or implying the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model provides an air purifier.

In the embodiment of the utility model, as shown in FIG. 1 and FIG. 2 , the air purifier includes an outer shell 1 , an inner shell 2 , a blower fan 3 and a filter screen 4 .

The outer casing 1 defines a chamber 11 with an open top, and the chamber 11 is used to hold a purification liquid, which can be water or other liquids that can absorb pollutants in the air; Insert the chamber, the area where the inner shell 2 is inserted into the chamber 11 is provided with an air inlet 21, and the area of the inner shell 2 outside the outer shell 1 is provided with an air outlet 22; the fan 3 is used to transfer the air in the inner shell 2 from the air outlet 22 to form a negative pressure inside the inner shell 2; the filter screen 4 is a sleeve-like structure, which is sleeved on the lower part of the inner shell 2 and covers the air inlet 21 of the inner shell 2, and the external air or the air in the chamber 11 The purified liquid enters the inner casing 2 from the air inlet 21 after being preliminarily filtered and purified by the filter screen. Before the air purifier of the utility model is used, it is necessary to add a purification liquid (such as water) to the chamber 11, so that the liquid level of the purification liquid in the chamber 11 and the inner shell slightly exceeds the filter screen 4; when in use, the fan 3 rotates and The air in the inner shell 2 is exhausted through the air outlet 22 to form a negative pressure. At this time, under the negative pressure of the inner shell 2, the purification liquid in the chamber 11 flows into the inner shell through the filter screen 4 and the air inlet 21 successively. 2. Make the liquid level in the inner shell 2 rise and the liquid level in the chamber 11 drop. When the liquid level in the chamber 11 drops below the top of the air inlet 21 (that is, at least part of the air inlet 21 is exposed), After the external air is preliminarily filtered and purified by the filter screen 4, it enters the purification liquid of the inner shell 2 from the air inlet 21, and then, under the action of buoyancy, it rises and leaves the inner shell 2 after being purified by the purification liquid of the inner shell 2 for the second time. The liquid level of the purified liquid is finally discharged from the inner casing 2 by the fan 3 from the air outlet 22, and the work is repeated to complete the purification process of the air. The utility model adopts the method of primary filtration and purification by the filter screen 4 and secondary purification of the purified liquid. On the one hand, the purification quality of the air can be guaranteed; The HEPA high-efficiency filter can be cleaned, and the washable and recyclable water-washable filter can be used to reduce the cost of purification. At the same time, water is a renewable resource, and its cost is extremely low, which can reduce the cost of purification while ensuring the quality of purification . In addition, while the purification liquid performs secondary purification on the air, it can also increase the humidity of the air and has a humidification effect.

Understandably, the filter uses a PTFE filter or a water-washed filter similar to the PTFE filter to reduce costs. Of course, other filter screens can also be used without considering the cost.

In the embodiment of the present utility model, the inner shell 2 includes a shell 23 with an open top, and an upper cover 24 for covering the opening at the top of the shell 23, and the air outlet 22 is opened on the upper cover 24 , and run through the upper and lower surfaces of the loam cake 24, the bottom of the housing 23 is inserted into the chamber 11, the air inlet 21 is opened in the area where the housing 23 stretches into the chamber 11, and the fan 3 is mounted on the loam cake 24.

Specifically, the casing 23 is in the shape of a funnel with a large inner diameter at the upper part and a smaller inner diameter at the lower part. This shape helps to generate sufficient negative pressure inside the inner shell 2 during operation, and makes the purification liquid in the chamber 11 Descend to the desired height.

Specifically, the fan 3 includes a motor 31 mounted on the upper cover 24 and a wind wheel 32 mounted on the rotating shaft of the motor 31. There are multiple air outlets 22, which are evenly distributed around the axis of the upper cover 24. The wind wheel 32 is located at The air in the inner shell 2 is exhausted through the air outlet 22 when the rotating shaft of the motor 31 rotates. The shape of the air outlet can be rectangular, circular, triangular or fan-shaped. As shown in Figure 1, it is fan-shaped.

It should be noted that the air outlet 22 can also be opened on the side wall of the casing 23 and located outside the chamber 11 without affecting the purification quality.

Specifically, there are multiple air inlets 21, which are set on the side wall of the area where the housing 23 extends into the chamber 11, and are evenly distributed around the axis of the housing 23. The air inlets can be rectangular or circular. , triangle and other shapes.

Further, the rotating shaft of the motor 31 is also connected with the driving shaft 5 extending downwards, the bottom of the driving shaft 5 is equipped with a stirring paddle 51 that can extend into the purification liquid in the housing 23, when the rotating shaft of the motor 31 rotates, it can pass through The drive shaft 5 drives the stirring paddle 51 to rotate to evenly stir the air entering the inner shell 2 from the air inlet 21 and the purification liquid, so that the purification liquid can fully purify the air, thereby improving the purification quality.

In this utility model embodiment, the filter screen 4 includes a sleeve-shaped filter screen main body 41, and an annular upper end cover 42 and a lower end cover 43 fixed on the lower end of the filter screen main body 41 and the lower end, wherein the filter screen main body 41 Made of washable filter material, the upper end cover 42 is located above the air inlet 21 and is sealed with the lower part of the inner shell 2, and the lower end cover 43 is sealed with the bottom wall of the inner shell 2 or the bottom wall of the chamber 11 Cooperate, so that the air or purification liquid can only enter the inner casing 2 from the air inlet 21 after being purified by the filter body 41 . Understandably, in order to ensure the quality of air purification, after the air purifier of the present invention is used for a period of time, the filter screen can be cleaned and the purification liquid can be replaced.

Further, the air purifier of the present utility model also includes an outer cover (not shown), the outer cover surrounds the outer shell and the inner shell except for the air outlet, and leaves an air inlet (not shown), so that external air can enter Inside it, and during decontamination work, into the shell. Outside the outer cover, a control panel (not shown) and decorative accessories (not shown), etc. can also be arranged, and the opening, closing and working status of the air purifier of the present utility model can be controlled through the control panel. The decorative accessories can improve the overall aesthetics of the air cleaner of the present utility model.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the utility model concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, Or directly/indirectly used in other related technical fields are all included in the patent protection scope of the present utility model.

Claims (10)

1. An air purifier, characterized in that, comprising: an outer casing, the outer casing defines a chamber with an open top, and the chamber is used to hold a purification liquid; Inner shell, the lower part of the inner shell is inserted into the cavity, the area where the inner shell is inserted into the cavity is provided with an air inlet, and the area where the inner shell is located outside the outer shell is provided with an air outlet; A fan, which is used to discharge the air in the inner casing from the air outlet to form a negative pressure inside the inner casing; and Filter screen, the filter screen is a sleeve-like structure, which is sleeved on the lower part of the inner shell and covers the air inlet of the inner shell. After the external air or the purification liquid in the chamber is filtered and purified by the filter screen, it enters the inner shell from the air inlet. shell. 2. The air purifier according to claim 1, wherein the inner shell comprises a shell with an opening at the top, and an upper cover for covering the opening at the top of the shell, the air outlet is opened on the upper cover, And run through the upper and lower surfaces of the upper cover, the lower part of the housing is inserted into the chamber, the air inlet is opened in the area where the housing extends into the chamber, the fan is installed on the upper cover, and the filter screen is a water-washable filter screen. 3. The air purifier according to claim 2, wherein the fan comprises a motor mounted on the upper cover and a wind wheel mounted on the shaft of the motor, and the filter is a washable PTFE filter. 4. The air purifier according to claim 2, characterized in that: there are multiple air outlets, which are evenly distributed around the axis of the upper cover, and the wind wheel is located in the housing, and when it rotates with the rotating shaft of the motor, the inner housing The air inside is exhausted through the air outlet. 5. The air purifier according to claim 2, characterized in that: the casing is in the shape of a funnel with a large inner diameter at the upper part and a smaller inner diameter at the lower part. 6. The air purifier according to claim 2, characterized in that: there are multiple air inlets, which are opened on the side wall of the area where the casing extends into the chamber, and are evenly distributed around the axis of the casing. 7. The air purifier according to any one of claims 2 to 6, characterized in that: the rotating shaft of the motor is also connected with a drive shaft extending downward, and the lower part of the drive shaft is equipped with a cleaning liquid that can extend into the housing the stirring paddle in the 8. The air purifier according to claim 7, wherein the filter screen comprises a sleeve-shaped filter screen main body, and an annular upper end cover and a lower end cover fixed on the lower end of the filter screen main body and the lower end, and the upper end cover is located at the inlet The position above the air port is sealed and fitted with the lower part of the inner shell, and the lower end cover is sealed and fitted with the bottom wall of the inner shell or the bottom wall of the chamber. 9. The air purifier according to claim 8, wherein the main body of the filter screen is made of washable filter material. 10. The air purifier according to claim 7, further comprising an outer cover, the outer cover surrounds the outer shell and the inner shell except for the air outlet, and defines an air inlet.