CN211977078U - An air purifier with filter replacement reminder function - Google Patents

Abstract

The utility model provides an air purifier with filter screen is changed and is reminded function, including arranging the fresh air inlet on the fan subassembly in the back lid and arranging the fan subassembly in, be equipped with the filter screen on the switch box subassembly and change the warning light, be equipped with dust sensor between fan subassembly and the back lid, be equipped with the draw-in groove that is used for installing active carbon filter screen and HEPA high efficiency filter screen in proper order on the fan subassembly, HEPA high efficiency filter screen is arranged in between active carbon filter screen and the front panel, the side opening edge of front panel and the side opening edge connection of back lid, the top opening edge of front panel and back lid is connected with the bottom opening edge of switch box subassembly, the bottom opening edge of front panel and back lid is connected with the top opening edge of base subassembly. The utility model provides a pair of air purifier with filter screen is changed and is reminded function has solved present air purifier and has influenced air purifier's purifying effect and the unable multiple gaseous problem of cleaing away in the air because of not in time clearing up a large amount of laying dust on the filter screen.

Description

An air purifier with filter replacement reminder function

technical field

The utility model relates to the technical field of air purification, in particular to an air purifier with a filter screen replacement reminding function.

Background technique

At present, most of the common air purifiers on the market can directly adsorb most air pollutants (generally including PM2.5, dust, pollen, odor, formaldehyde and other decoration pollution, bacteria, allergens and other substances). Decompose or transform, thereby improving air cleanliness.

However, in practice, it is found that since most of these air purifiers do not have a prompt message for filter replacement, after the air purifier has been used for a long time, a large amount of dust adsorbed on the filter will affect the purification effect of the air purifier. ; And most of these air purifiers directly use the simple purification technology of filtration and adsorption and have a single function, which not only cannot remove a variety of polluting gases in the air, but is not conducive to comprehensively improving air quality.

Therefore, it is necessary to provide an air purifier with a filter replacement reminder function to solve the above technical problems.

Utility model content

The main technical problem solved by the utility model is to provide an air purifier with a filter screen replacement reminder function, which solves the problem that the current air purifier does not clean up a large amount of dust on the filter screen in time, which affects the purification effect of the air purifier and cannot be removed. The problem of various polluting gases in the air can effectively improve the air purification effect of the air purifier to comprehensively improve the air quality.

In order to solve the above-mentioned technical problems, a technical solution adopted by the present invention is to provide an air purifier with a filter screen replacement reminder function, including a front panel 1, a HEPA high-efficiency filter screen 2, an activated carbon filter screen 3, a switch box assembly, and a device. The air outlet hole 11 on the switch box assembly, the U-shaped back cover 7, the fan assembly, the air inlet hole 10 on the fan assembly, and the base assembly 8; wherein, the switch box assembly is provided with a filter. Net replacement reminder light 4, a dust sensor 12 is provided between the fan assembly and the U-shaped rear cover 7, the fan assembly is placed inside the U-shaped rear cover 7, and the fan assembly is provided with a Install the card slot of the activated carbon filter 3 and the HEPA high-efficiency filter 2 in turn, and the HEPA high-efficiency filter 2 is placed between the activated carbon filter 3 and the front panel 1, and the side end of the front panel 1 The opening edge is connected with the side opening edge of the U-shaped rear cover 7, the top opening edge of the front panel 1 and the rear cover 7 is connected with the bottom opening edge of the switch box assembly, the front panel 1 and The bottom opening edge of the rear cover 7 is connected with the top opening edge of the base assembly 8 .

Preferably, the air purifier with a filter screen replacement reminder function further includes a volute assembly, and the volute assembly is placed between the fan assembly and the U-shaped back cover 7; wherein, the volute assembly further includes a volute The casing main body 6 , the volute casing flow channel 13 passing through the volute casing main body 6 , the air outlet 14 communicating with the volute casing flow passage 13 , and the power box assembly 15 fixedly connected to the lower part of the volute casing main body 6 . The air outlet 14 is placed on the upper part of the volute main body 6 , and the dust sensor 12 is placed on the outer side wall of the power box assembly 15 .

Preferably, the fan assembly further includes a fan main frame 9, a negative ion generator 20, a motor motor 19, a nut 23 sleeved on the upper strut of the motor motor 19, a washer 22, a fan blade fixing frame 21, a fan blade 16. Motor fixing frame 17 and motor washer 18; wherein, the motor fixing frame 17 is placed on the upper part of the motor motor 19, and the motor washer 18 is placed on the motor fixing frame 17 and the motor motor 19 between the fan blade fixing frame 21 and the top of the fan blade 16, the gasket 14 is placed between the nut 23 and the fan blade fixing frame 21, and the negative ion generator 20 is placed in the on the outer side wall of the main frame body 9 of the fan.

Preferably, the switch box assembly further comprises a switch box body 5, a control panel 24, an odor sensor circuit board 25, and a control circuit board 26 placed inside the switch box body 5; wherein, the control panel 24 is provided with a power supply The indicator light 28, the electronic display screen 27 and a plurality of control buttons 29, the filter replacement reminder light 4 is placed on the control panel 24, the air outlet 11 and the control panel 24 are placed in the switch box On the main body 5 , the control circuit board 26 is placed directly below the control panel 24 .

Preferably, the air purifier with a filter replacement reminder function further includes an odor sensor 25, and the outer side wall of the switch box main body 5 is provided with a groove 30 for installing the odor sensor 25, and the odor sensor 25 is installed on the groove 30 .

Preferably, the air purifier with filter replacement reminder function further includes a dust sensor cover 31 , the upper part of the dust sensor cover 31 is connected to the outer side wall of the power box assembly 15 through a fixing screw, and the dust sensor cover 31 The bottom opening edge of the dust sensor 12 is connected with the top opening edge of the dust sensor 12 .

Preferably, a recessed handle 32 is provided on the outer side wall of the U-shaped rear cover 7 .

The beneficial effect of the utility model is that: the utility model provides an air purifier with a filter screen replacement reminder function, which solves the problem that the current air purifier does not clean up a large amount of dust on the filter screen in time and affects the purification effect of the air purifier. And the problem of inability to remove various polluting gases in the air can effectively improve the air purification effect of the air purifier to comprehensively improve the air quality.

Description of drawings

1 is a schematic structural diagram of a first preferred embodiment of an air purifier with a filter screen replacement reminder function proposed by the present utility model;

FIG. 2 is a three-dimensional structural view of an air purifier with a filter screen replacement reminder function proposed by the utility model;

3 is a schematic structural diagram of a second preferred embodiment of another air purifier with a filter screen replacement reminder function proposed by the present invention;

FIG. 4 is an enlarged view of the fan assembly structure in FIG. 3;

FIG. 5 is an enlarged view of the structure of the switch box assembly in FIG. 3 .

The names of the parts corresponding to the numbers in the accompanying drawings are as follows:

Front panel 1; HEPA high-efficiency filter 2; activated carbon filter 3; filter replacement reminder light 4; switch box body 5; volute body 6; U-shaped back cover 7; base assembly 8; fan main frame 9; air intake Hole 10; air outlet 11; dust sensor 12; volute channel 13; air outlet 14; power box assembly 15; fan blade 16; motor fixing frame 17; motor gasket 18; ; Fan blade holder 21; Gasket 22; Nut 23; Control panel 24; Odor sensor 25; Control circuit board 26; Electronic display screen 27; Power indicator light 28; 31; recessed handle 32.

Detailed ways

The technical solutions of the present utility model will be described in detail below with reference to the drawings.

Example 1

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an air purifier with a filter screen replacement reminder function of the present invention. As shown in FIG. 1 , the air purifier with a filter replacement reminder function of this embodiment includes a front panel 1, a HEPA high-efficiency filter 2, an activated carbon filter 3, a switch box assembly, and an air outlet placed on the switch box assembly. Hole 11, U-shaped rear cover 7, fan assembly, air inlet hole 10 placed on the fan assembly, and base assembly 8; wherein, the switch box assembly is provided with a filter replacement reminder light 4, and the fan assembly and the U-shaped rear cover 7 There is a dust sensor 12 in between, the fan assembly is placed inside the U-shaped back cover 7, and the fan assembly is provided with a card slot for installing the activated carbon filter 3 and the HEPA high-efficiency filter 2 in sequence, and the HEPA high-efficiency filter 2 is placed in the activated carbon Between the filter screen 3 and the front panel 1, the side opening edge of the front panel 1 is connected with the side opening edge of the U-shaped rear cover 7, the top opening edge of the front panel 1 and the rear cover 7 and the bottom opening edge of the switch box assembly Connection, the bottom opening edge of the front panel 1 and the rear cover 7 are connected with the top opening edge of the base assembly 8 .

Preferably, the air purifier with a filter screen replacement reminder function further includes a volute assembly, and the volute assembly is placed between the fan assembly and the U-shaped rear cover 7; 6, the volute channel 13, the air outlet 14 communicating with the volute channel 13, and the power box assembly 15 fixedly connected to the lower part of the volute main body 6, the air outlet 14 is placed on the upper part of the volute main body 6, and the dust sensor 12 is placed on the outer side wall of the power box assembly 15.

Please refer to FIG. 2 , which is a three-dimensional structural view of an air purifier with a filter screen replacement reminder function proposed by the present invention. The schematic structural diagram shown in FIG. 1 is an exploded view of the three-dimensional structural diagram shown in FIG. 2 .

Preferably, when the fan assembly in the air purifier with the filter replacement reminder function rotates once, a certain air pressure will be generated inside the air purifier to inhale the outside air from the air inlet, and the outside air will be quickly discharged from the air outlet. sent out;

And, after the outside air enters the interior of the air purifier, it must first pass through the HEPA high-efficiency filter 2 and the activated carbon filter 3; among them, the HEPA high-efficiency filter 2 can be used for external air with an inner diameter of 0.3 microns or more than 1/200 of the hair diameter. Particles such as smoke, dust, bacteria and other pollutants are effectively removed, and the activated carbon filter 3 can remove formaldehyde and TVOC for the gas that has been treated by the HEPA high-efficiency filter 2;

And, the dust sensor 12 can perform dust detection on the external air processed by the HEPA high-efficiency filter 2 and the activated carbon filter 3 in turn. If the dust sensor 12 detects that the dust value reaches a specified threshold, it can be determined that the HEPA high-efficiency filter 2 and the activated carbon filter When the particulate dust on the filter screen 3 reaches a certain amount, the fan assembly stops working and the filter screen replacement reminder light 4 is turned on;

And, if the dust sensor 12 does not detect that the dust value reaches the specified threshold, the fan assembly can send the external air processed by the HEPA high-efficiency filter 2 and the activated carbon filter 3 into the volute flow channel 13, and the filtered air The gas can flow along the volute flow channel 13 to the air outlet 11 which communicates with the air outlet 14 .

It can be seen that the implementation of the air purifier with the filter replacement reminder function described in the above figure solves the problem that the current air purifier does not clean up a large amount of dust on the filter in time, which affects the purification effect of the air purifier and the inability to remove various kinds of air in the air. The problem of polluted gas can effectively improve the air purification effect of the air purifier to comprehensively improve the air quality.

In addition, the implementation of the air purifier with the filter replacement reminder function described in the above figure, through the dust sensor disposed between the fan assembly and the U-shaped back cover, and the filter replacement reminder light on the switch box assembly, can Always monitor the dust removal and purification effect of the air purifier and give certain prompt information to avoid the air purifier from affecting the dust removal and purification effect of the air purifier due to a large amount of dust on the filter screen.

In addition, the implementation of the air purifier with the filter replacement reminder function described in the above figure, through the volute assembly disposed between the fan assembly and the U-shaped back cover, the gas that has undergone dust removal and purification treatment can be collected and discharged together for air purification. In order to make the air purifier have a good airtight design, it can prevent the air from going around the filter screen and lose the filtering effect, which is beneficial to improve the dust removal and purification effect of the air purifier.

Embodiment 2

Please refer to FIG. 3 , which is a schematic structural diagram of a second preferred embodiment of another air purifier with a filter screen replacement reminder function of the present invention. Wherein, the air purifier with a filter screen replacement reminder function shown in FIG. 2 is obtained by optimizing the air purifier with a filter screen replacement reminder function shown in FIG. 1 .

Compared with the air purifier with filter replacement reminder function shown in FIG. 1 , the air purifier with filter replacement reminder function shown in FIG. 2 further includes an odor sensor 25 , a dust sensor cover 31 and a recessed handle 32 .

Preferably, a groove 30 for installing the smell sensor 25 is provided on the outer side wall of the switch box main body 5 , and the smell sensor 25 is installed on the groove 30 .

Preferably, the odor sensor 25 can detect certain irritating and harmful substances in the gas entering the air purifier. If the odor sensor 25 detects that the gas entering the air purifier contains some irritating and harmful substances, the air purifier will The electronic display on the screen can display some irritating and harmful substances currently detected, and judge that the activated carbon filter 3 needs to be replaced and cleaned.

Preferably, the upper part of the dust sensor cover 31 is connected with the outer side wall of the power supply box assembly 15 by fixing screws, and the bottom opening edge of the dust sensor cover 31 is connected with the top opening edge of the dust sensor 12 .

Preferably, the recessed handle 32 is provided on the outer side wall of the U-shaped rear cover 7 .

Please refer to FIG. 4 , which is an enlarged view of the structure of the fan assembly in FIG. 3 .

As shown in FIG. 4 , the fan assembly of the air purifier with the filter replacement reminder function of this embodiment further includes a fan main frame 9 , a negative ion generator 20 , a motor motor 19 , and a support rod sleeved on the upper part of the motor motor 19 . The nut 23, the washer 22, the fan blade fixing frame 21, the fan blade 16, the motor fixing frame 17 and the motor washer 18; wherein, the motor fixing frame 17 is placed on the upper part of the motor motor 19, and the motor washer 18 is placed on the motor fixing frame Between the frame 17 and the motor motor 19, the fan blade fixing frame 21 is clamped with the top of the fan blade 16, the gasket 14 is placed between the nut 23 and the fan blade fixing frame 21, and the negative ion generator 20 is placed outside the fan main frame 9 on the wall.

Preferably, after the air purifier inhales external air, the HEPA high-efficiency filter 2 can perform primary filtration on the inhaled air to eliminate dust, and then the activated carbon filter 3 can remove formaldehyde and TVOC and other substances, and then carry out deep air purification. Negative oxygen ions and control its humidity, and discharge the purified air into the indoor environment to completely improve the air quality of the indoor space.

Please refer to FIG. 5 , which is an enlarged view of the structure of the switch box assembly in FIG. 3 .

As shown in FIG. 5 , the switch box assembly of the air purifier with the filter replacement reminder function of this embodiment further includes a switch box main body 5 , a control panel 24 , an odor sensor circuit board 25 , and a switch box main body 5 . Control circuit board 26; wherein, the control panel 24 is provided with a power indicator light 28, an electronic display screen 27 and a plurality of control buttons 29, the filter replacement reminder light 4 is placed on the control panel 24, the air outlet 11 and the control panel 24 Placed on the switch box body 5 , the control circuit board 26 is placed directly below the control panel 24 .

Preferably, the plurality of control buttons 29 at least include a main power switch button, a timing function button, an anion function button, an air volume control button, a sleep mode button, a child lock function button, and the like.

Preferably, the air purifier with the filter replacement reminder function is also provided with an automatic gear mode and a manual gear mode, and a PM2.5 concentration indicator light is provided on the switch box main body 5; The motor speed can be automatically adjusted according to the change of PM2.5 concentration in the air. For example, when the PM2.5 concentration in the air is high, the indicator light shows red, and the motor speed is high; when the PM2.5 concentration in the air is When it is in the middle, the indicator light shows blue light, and the motor speed is medium speed; when the PM2.5 concentration in the air is low, the indicator light shows green light, and the motor speed is low speed.

It can be seen that the implementation of the air purifier with the filter replacement reminder function described in the above figure solves the problem that the current air purifier does not clean up a large amount of dust on the filter in time, which affects the purification effect of the air purifier and the inability to remove various kinds of air in the air. The problem of polluted gas can effectively improve the air purification effect of the air purifier to comprehensively improve the air quality.

In addition, the implementation of the air purifier with the filter replacement reminder function described in the above figure can effectively control the humidity outside the air purifier and improve the indoor air through the negative ion generator arranged on the outer side wall of the main frame of the fan. The air quality of the space.

The above are only the embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Any equivalent structure made by using the contents of the present utility model description and accompanying drawings, or directly or indirectly applied in other related technical fields, are the same as The principles are included in the scope of patent protection of the present invention.

Claims (7)

1. An air purifier with a filter screen replacement reminder function, characterized in that it comprises a front panel (1), a HEPA high-efficiency filter screen (2), an activated carbon filter screen (3), a switch box assembly, a An air outlet (11) on the box assembly, a U-shaped back cover (7), a fan assembly, an air inlet hole (10) placed on the fan assembly, and a base assembly (8); wherein the switch box assembly A filter screen replacement reminder light (4) is provided on it, a dust sensor (12) is arranged between the fan assembly and the U-shaped rear cover (7), and the fan assembly is placed on the U-shaped rear cover (7). ), the fan assembly is provided with a slot for installing the activated carbon filter (3) and the HEPA high-efficiency filter (2) in sequence, and the HEPA high-efficiency filter (2) is placed on the activated carbon filter. (3) Between the front panel (1), the side opening edge of the front panel (1) is connected to the side opening edge of the U-shaped rear cover (7). The front panel (1) And the top opening edge of the rear cover (7) is connected with the bottom opening edge of the switch box assembly, and the front panel (1) and the bottom opening edge of the rear cover (7) are connected with the base assembly (8) ) at the top opening edge. 2. The air purifier with filter screen replacement reminder function according to claim 1, characterized in that: The air purifier with a filter screen replacement reminder function further includes a volute assembly, and the volute assembly is placed between the fan assembly and the U-shaped back cover (7); wherein, the volute assembly further includes a volute A casing main body (6), a volute flow channel (13) penetrating the volute main body (6), an air outlet (14) communicating with the volute flow channel (13), and a volute main body (14) 6) A power supply box assembly (15) fixedly connected at the bottom, the air outlet (14) is placed on the upper part of the volute main body (6), and the dust sensor (12) is placed in the power supply box assembly (15) ) on the outer side wall. 3. The air purifier with filter screen replacement reminder function according to claim 2, characterized in that: The fan assembly further comprises a fan main frame (9), a negative ion generator (20), a motor (19), a nut (23) sleeved on the upper strut of the motor (19), a washer (22) ), a fan blade fixing frame (21), a fan blade (16), a motor fixing frame (17) and a motor gasket (18); wherein, the motor fixing frame (17) is placed on the side of the motor motor (19). In the upper part, the motor gasket (18) is placed between the motor fixing frame (17) and the motor motor (19), and the fan blade fixing frame (21) is clamped with the top of the fan blade (16). Then, the gasket (22) is placed between the nut (23) and the fan blade fixing frame (21), and the negative ion generator (20) is placed on the outside of the fan main frame (9). on the wall. 4. The air purifier with filter screen replacement reminder function according to claim 3, characterized in that: The switch box assembly further comprises a switch box main body (5), a control panel (24), an odor sensor (25) and a control circuit board (26) placed inside the switch box main body (5); wherein the control The panel (24) is provided with a power indicator light (28), an electronic display screen (27) and a plurality of control buttons (29), and the filter screen replacement reminder light (4) is placed on the control panel (24), The air outlet (11) and the control panel (24) are placed on the switch box main body (5), and the control circuit board (26) is placed directly below the control panel (24). 5. The air purifier with filter screen replacement reminder function according to claim 4, characterized in that: The air purifier with a filter screen replacement reminder function further comprises an odor sensor (25), and a groove (30) for installing the odor sensor (25) is provided on the outer side wall of the switch box main body (5), The smell sensor (25) is mounted on the groove (30). 6. The air purifier with filter screen replacement reminder function according to claim 2, characterized in that: The air purifier with a filter screen replacement reminder function further comprises a dust sensor cover (31), the upper part of the dust sensor cover (31) is connected to the outer side wall of the power supply box assembly (15) through a fixing screw, the The bottom opening edge of the dust sensor cover (31) is connected with the top opening edge of the dust sensor (12). 7. The air purifier with a filter screen replacement reminder function according to any one of claims 1 to 6, wherein a recessed handle (32) is provided on the outer side wall of the U-shaped rear cover (7).

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