CN110657540A - A fresh air purification device - Google Patents

Abstract

A fresh air purification device includes a casing, the casing has a fresh air inlet and a fresh air outlet, and is characterized in that: a primary filter, a high-efficiency filter, a dust collector, a dust collector and a fan are installed inside the casing, and the primary filter The net and the high-efficiency filter are arranged in the air duct between the fresh air inlet and the air inlet of the fan in turn. The dust collector is used to remove the dust attached to the primary filter, and the removed dust is collected in the dust collector, and the air outlet of the fan Connected to the fresh air outlet. The advantages of the present invention are: the primary filter and the high-efficiency filter of the fresh air purification device are sequentially arranged in the air duct between the fresh air inlet and the fan air inlet, and the dust adhering to the primary filter can be removed by a dust collector. The cleaned dust is collected in the dust collector, so that the filter can always be kept clean after the purification device has been working for a long time, thereby improving the air filtration effect and prolonging the service life of the filter.

Description

A fresh air purification device

technical field

The invention relates to a fresh air purification device.

Background technique

With the increasing degree of modernization of society, people's production and lifestyle have also undergone great changes. People work, live and play indoors for longer and longer, and work, entertainment, sports and other activities can be According to statistics, people spend more than 80% of their time indoors on average every day. Therefore, indoor air quality has a vital impact on human health.

At present, there are fresh air ventilators on the market for replacing fresh air. When the fresh air ventilator is working, the outdoor air enters the ventilator from the outdoor air inlet, and then passes through the primary filter, the intermediate filter, and the electrostatic precipitator. The box removes impurities in the outside air, and at the same time, the indoor air enters the ventilator from the indoor air inlet, and the heat of the indoor air is exchanged to the new air coming in from the outside through the heat exchanger. The air is further processed into the room, and the old indoor air is exhausted outside. Although the above-mentioned fresh air ventilator can effectively purify the indoor air, after the ventilator has been used for a long time, the filtered dust particles are easy to adhere to the primary filter screen, the medium effect filter screen and the electrostatic precipitator box, causing it to be blocked, and then The air filtration effect is not good.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to provide a fresh air purifying device with a simple structure and good air filtration effect, aiming at the current state of the prior art.

The technical solution adopted by the present invention to solve the above technical problems is as follows: the fresh air purifying device includes a casing, the casing has a fresh air inlet and a fresh air outlet, and is characterized in that a primary filter screen, a fresh air outlet are installed inside the casing. A high-efficiency filter, a dust collector, a dust collector and a fan. The primary filter and the high-efficiency filter are sequentially arranged in the air duct between the fresh air inlet and the fan inlet. The dust on the primary filter screen, and the removed dust is collected in the dust collector, and the air outlet of the fan is communicated with the fresh air outlet.

The primary filter can rotate back and forth under the drive of the drive mechanism, the dust collector is always in contact with the surface of the primary filter, and the primary filter can drive the dust collector to rotate synchronously.

As a preferred solution, the drive mechanism includes a motor, a first sleeve, a second sleeve, a support shaft and a rotating shaft installed in the casing, the first sleeve, the second sleeve, the support shaft and the rotating shaft The axes are arranged in parallel, the motor drives the first sleeve to rotate, and the two ends of the primary filter respectively bypass the rotating shaft and the support shaft, and are respectively wound around the first sleeve and the second sleeve. On the sleeve, the dust collector includes a rotating shaft and a cleaning brush installed on the rotating shaft. The rotating shaft is close to the rotating shaft and is parallel to the rotating shaft. The rotating shaft drives the rotating shaft to rotate, and the cleaning brush is always in line with the initial contact with the effective filter. In this way, the primary filter can be moved back and forth between the first sleeve and the second sleeve, so that the cleaning brush can clean the entire filter.

Further preferably, the second sleeve is located above the first sleeve, and the first sleeve and the second sleeve are close to the fresh air inlet, the support shaft is above the rotation shaft, and the support shaft and the rotation shaft are close to each other The high-efficiency filter.

In order to make the rotating speed of the rotating shaft be greater than the rotating speed of the rotating shaft, a gear acceleration mechanism is installed between the rotating shaft and the rotating shaft, which can make the rotating speed of the rotating shaft be greater than the rotating speed of the rotating shaft.

The dust collector may have various structures. Preferably, the dust collector is a dirt collection box, and the dirt collection box is located directly below the cleaning brush.

Further preferably, the motor is a geared motor.

Further preferably, the rotating shaft is a driven shaft that rotates synchronously under the driving of the primary filter. The primary effect filter mesh is closely matched with the rotating shaft, so that the rotating shaft can be driven to rotate when the primary effect filter mesh moves.

As another preferred solution, the drive mechanism includes a reduction motor, a first support shaft, a second support shaft and a third support shaft, and the output shaft of the reduction motor is connected to the first support shaft, the second bearing shaft, The third support shaft is coaxially arranged, the primary filter screen is enclosed on the output shaft, the first support shaft, the second support shaft and the third support shaft of the deceleration motor and rotates under the drive of the deceleration motor, and The primary filter screen forms a first filter surface and a second filter surface arranged oppositely, the first filter surface is close to the fresh air inlet, the second filter surface is close to the high-efficiency filter screen, and the dust collector includes a rotating shaft and a A cleaning brush installed on a rotating shaft, the rotating shaft is close to and parallel to the first supporting shaft, the first supporting shaft drives the rotating shaft to rotate, and the cleaning brush is always in contact with the primary filter. In this way, bipolar filtration of the primary filter can be formed, which greatly improves the filtration effect.

Further preferably, the fan is a centrifugal fan.

In order to make the fresh air entering the inside of the casing flow more smoothly, the air inlet of the fan faces the fresh air inlet, and the air outlet of the fan faces the fresh air outlet.

Compared with the prior art, the present invention has the advantages that the primary filter and the high-efficiency filter of the fresh air purification device are sequentially arranged in the air duct between the fresh air inlet and the air inlet of the fan, and the dust attached to the primary filter can be removed. It is used for removal by the dust collector, and the removed dust is collected in the dust collector, so that the filter can always be kept clean after the purification device has been working for a long time, thereby improving the air filtration effect and prolonging the service life of the filter.

Description of drawings

1 is a schematic structural diagram of Embodiment 1 of the present invention;

2 is a schematic diagram of the installation structure of the primary filter according to the first embodiment of the present invention;

3 is a schematic diagram of the installation structure of Embodiment 1 of the present invention;

FIG. 4 is a schematic diagram of an installation structure of Embodiment 2 of the present invention.

Detailed ways

The present invention will be further described in detail below with reference to the embodiments of the accompanying drawings.

Example 1:

As shown in FIG. 1 and FIG. 2 , the fresh air purification device in this embodiment includes a casing 1 , the casing 1 has a fresh air inlet 11 and a fresh air outlet 12 , and a primary filter 2 and a high efficiency filter are installed inside the casing 1 3. Dust collector 4, dust collector 5 and fan 6. Among them, the primary filter 2 and the high-efficiency filter 3 are sequentially arranged in the air duct between the fresh air inlet 11 and the air inlet of the fan 6, and the dust collector 4 is used to remove the dust attached to the primary filter 2, and the cleaned The dust is collected in the dust collector 5 , and the air outlet of the fan 6 communicates with the fresh air outlet 12 . The fan 6 adopts a centrifugal fan, the air inlet of the fan 6 faces the fresh air inlet 11 , and the air outlet of the fan 6 faces the fresh air outlet 12 .

In this embodiment, a drive mechanism for driving the primary filter 2 to rotate is installed in the casing 1 , and the drive mechanism includes a motor 71 , a first sleeve 72 , a second sleeve 73 , a support shaft 74 and a rotation shaft 75 . A sleeve 72 , the second sleeve 73 , the support shaft 74 and the rotation shaft 75 are arranged in parallel in the axial direction, and the second sleeve 73 is located above the first sleeve 72 , and the first sleeve 72 and the second sleeve 73 is close to the fresh air inlet 11 , the supporting shaft 74 is above the rotating shaft 75 , and the supporting shaft 74 and the rotating shaft 75 are close to the high-efficiency filter screen 3 . The motor 71 adopts a geared motor and is used to drive the first sleeve 72 to rotate. The two ends of the primary filter screen 2 bypass the rotating shaft 75 and the supporting shaft 74 respectively, and are respectively wound on the first sleeve 72 and the second sleeve 73 . The rotating shaft 75 is a driven shaft, and the rotating shaft 75 is closely matched with the primary filter screen 2. When the primary filter screen 2 moves, the rotating shaft 75 can be driven to rotate synchronously.

The dust collector 4 includes a rotating shaft 41 and a cleaning brush 42 mounted on the rotating shaft. The rotating shaft 41 is close to and parallel to the rotating shaft 75 , and the rotating shaft 75 drives the rotating shaft 41 to rotate. In this embodiment, in order to increase the rotation speed of the rotating shaft 41 , a gear acceleration mechanism 8 is installed between the rotating shaft 75 and the rotating shaft 41 , which can make the rotating shaft 41 rotate faster than the rotating shaft 75 . The cleaning brush 42 is in strip shape and is always in contact with the primary filter screen 2. With the rotation of the rotating shaft 41, the cleaning brush 42 rotates continuously, thereby improving the cleaning effect.

The dust collecting box 5 in this embodiment is a dirt collecting box, and the dirt collecting box 5 is located directly below the cleaning brush 42, so that the cleaning brush 42 can brush dust into the dirt collecting box.

As shown in FIG. 3 , the fresh air purification device adopts a wall-mounted installation, and a fresh air passage 91 is opened on the wall 9 to connect the fresh air inlet 11 with the outside. The rain cover 10 can be opened or closed as required. When the purification device is not in use, the solar rainproof cover 10 closes the fresh air passage 91 , and when the purification apparatus is activated, the solar rainproof cover 10 is opened to prevent rainwater from entering the fresh air purification apparatus through the fresh air passage 91 .

When the fresh air purification device is in operation, the outdoor air enters the casing 1 through the fresh air passage 91 and the fresh air inlet 11 in turn, and enters the fan 6 under the action of the fan 6 and passes through the primary filter 2 and the primary filter 3 in turn, and works. After a period of time, the motor 71 starts to rotate, and the primary filter 2 transitions from the first sleeve 72 to the second sleeve 73. At the same time, the cleaning brush 42 continuously cleans the corresponding position of the primary filter 2, and the dust and other impurities are brushed down. The dust enters the dust box, so that the primary filter 2 can be kept clean. When the primary filter 2 is completely transferred from the first sleeve 72 to the second sleeve 73, the motor 71 is reversed, and the cleaned primary filter 2 is rewound on the first sleeve 72, thus achieving cleaning. The purpose is to effectively improve the service life of the primary filter 2.

Embodiment 2:

As shown in FIG. 4 , the driving mechanism of this embodiment includes a geared motor 76 , a first support shaft 77 , a second support shaft 78 and a third support shaft 79 . The output shaft of the geared motor 76 is connected to the first support shaft 77 , the second support shaft 78 The bearing shaft 78 and the third support shaft 79 are coaxially arranged, and the primary filter screen 2 is enclosed on the output shaft of the deceleration motor 76 , the first support shaft 77 , the second support shaft 78 and the third support shaft 79 and is connected to the deceleration motor 76 . 76 is driven to rotate, and the primary filter screen 2 forms a first filter surface 21 and a second filter surface 22 arranged oppositely, the first filter surface 21 is close to the fresh air inlet 11, and the second filter surface 22 is close to the high-efficiency filter screen 3. The dust collector 4 in this embodiment includes a rotating shaft 41 and a cleaning brush 42 mounted on the rotating shaft. The rotating shaft 41 is close to the first support shaft 77 and is parallel to the first support shaft 77. The first support shaft 77 drives the rotating shaft 41 to rotate, and the cleaning brush 42 is always in contact with the primary filter 2 , and the rotation direction of the cleaning brush 42 is the same as the rotation direction of the first support shaft 77 .

During operation, the primary effect filter 2 of this embodiment can form bipolar filtration, which can prevent the pollutants adhering to the first filter surface 21 on the primary filter 2 from being directly blown into the high-efficiency filter when the first filter surface 21 rotates to the second filter surface 22. Filter 3, greatly improve the purification effect. The rest of the structure of this embodiment is the same as that of the first embodiment, and will not be described here.

Claims (10)

1. The utility model provides a fresh air purification device, includes casing (1), casing (1) has fresh air inlet (11) and fresh air outlet (12), its characterized in that: casing (1) internally mounted has primary filter screen (2), high efficiency filter screen (3), dust remover (4), dust arrester (5) and fan (6), primary filter screen (2) and high efficiency filter screen (3) set gradually in the wind channel between new trend import (11) and fan (6) air intake, dust remover (4) are used for cleaing away and are attached to dust on primary filter screen (2), and the dust after cleaing away is collected dust arrester (5) in, the air outlet of fan (6) with the new trend export is linked together.

2. The fresh air purification device according to claim 1, wherein: the primary filter screen (2) can rotate back and forth under the drive of the driving mechanism, the dust remover (4) is always in contact with the surface of the primary filter screen (2), and the primary filter screen (2) can drive the dust remover (4) to rotate synchronously.

3. The fresh air purification device according to claim 1, wherein: the driving mechanism comprises a motor (71), a first sleeve (72), a second sleeve (73), a supporting shaft (74) and a rotating shaft (75) which are arranged in the machine shell (1), the first sleeve (72), the second sleeve (73), the supporting shaft (74) and the rotating shaft (75) are axially arranged in parallel, the motor drives the first sleeve (72) to rotate, two ends of the primary filter screen (2) respectively bypass the rotating shaft (75) and the supporting shaft (74), and respectively wound around said first sleeve (72) and said second sleeve (73), the dust remover (4) comprises a rotating shaft (41) and a cleaning brush (42) arranged on the rotating shaft, the rotating shaft (41) is close to the rotating shaft (75) and is parallel to the rotating shaft, the rotating shaft (75) drives the rotating shaft (41) to rotate, the cleaning brush (42) is always in contact with the primary filter screen (2).

4. The fresh air purification device according to claim 3, wherein: second sleeve (73) are located the top of first sleeve (72), and first sleeve (72) and second sleeve (73) are close to new trend import (11), back shaft (74) are the top of axis of rotation (75), and back shaft (74) and axis of rotation (75) are close to be close to high-efficient filter screen (3).

5. The fresh air purification device according to claim 3, wherein: and a gear acceleration mechanism (8) which can enable the rotating speed of the rotating shaft to be greater than that of the rotating shaft is arranged between the rotating shaft (75) and the rotating shaft (41).

6. The fresh air purification device according to claim 3, wherein: the dust collector (5) is a dirt collecting box, and the dirt collecting box (5) is positioned under the cleaning brush (42).

7. The fresh air purification device according to claim 3, wherein: the motor (71) is a speed reducing motor.

8. The fresh air purification device according to claim 3, wherein: the rotating shaft (75) is a driven shaft which synchronously rotates under the driving of the primary filter screen (2).

9. The fresh air purification device according to claim 2, wherein: the driving mechanism comprises a speed reducing motor (76), a first supporting shaft (77), a second supporting shaft (78) and a third supporting shaft (79), an output shaft of the speed reducing motor (76) is coaxially arranged with the first supporting shaft (77), the second supporting shaft (78) and the third supporting shaft (79), the primary filter screen (2) is enclosed on the output shaft of the speed reducing motor (76), the first supporting shaft (77), the second supporting shaft (78) and the third supporting shaft (79) and rotates under the driving of the speed reducing motor (76), the primary filter screen (2) forms a first filter surface (21) and a second filter surface (22) which are oppositely arranged, the first filter surface (21) is close to the fresh air inlet (11), the second filter surface (22) is close to the high-efficiency filter screen (3), the dust remover (4) comprises a rotating shaft (41) and a cleaning brush (42) arranged on the rotating shaft, pivot (41) are close to first supporting shaft (77) and parallel with first supporting shaft (77), first supporting shaft (77) drive pivot (41) and rotate, cleaning brush (42) all the time with primary filter screen (2) contact.

10. The fresh air purification device according to any one of claims 1 to 9, wherein: the air inlet of the fan (6) faces towards the fresh air inlet (11), and the air outlet of the fan (6) faces towards the fresh air outlet (12).

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