CN211060270U

CN211060270U - Purifier with self-cleaning function

Info

Publication number: CN211060270U
Application number: CN201921471252.7U
Authority: CN
Inventors: 程兴华
Original assignee: TIANJIN FANGHE TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: TIANJIN FANGHE TECHNOLOGY DEVELOPMENT CO LTD
Priority date: 2019-09-05
Filing date: 2019-09-05
Publication date: 2020-07-21
Anticipated expiration: 2029-09-05

Abstract

The utility model relates to a purifier with self-cleaning function, including shell and purifying material, characterized by: the shell is equipped with air intake zone, clean area, blast zone and exhaust area, and the clean area embeds there is purifying material, the air intake zone and the exhaust area both sides face of shell are equipped with the air vent, and the rigid coupling has the switching-over valve respectively in air intake zone and the exhaust area, the sealed piston at switching-over valve both ends removes back and air vent sealing connection, and the rigid coupling has the fan in the blast zone, and air intake zone, clean area and exhaust area treat through switching-over valve and fan control that purify the gas or fresh air flows in from purifying material's one end, and the other end flows out and constitutes the clean mechanism of treating the gas and admitting air exhaust passageway or the automatically cleaning mechanism of fresh air and admitting air exhaust passageway. Has the advantages that: the utility model discloses a switching-over valve is to fresh air and the alternative switching of waiting to purify gas inlet and outlet channel for fresh air and waiting to purify gas pass through purifying material in turn, realize having self-cleaning function's purifier.

Description

Purifier with self-cleaning function

Technical Field

The utility model belongs to the air purification field especially relates to a purifier with self-cleaning function.

Background

With the improvement of living standard of people, various purification devices have been applied to various occasions, such as: the air purifier that northern family commonly used, the clarifier of harmful gas and peculiar smell is eliminated in the car, and the product such as clarifier of peculiar smell is eliminated to the refrigerator is widely used by everybody, and these products have solved the air pollution problem in the life to a certain extent. The purifier mainly comprises the following components according to the working principle: active purification and passive purification, wherein the active purification achieves the effects of odor removal and purification by actively releasing purification factors, such as a negative oxygen ion air purifier and a nano water ion purifier; passive purification is to make the gas to be purified reach the effect of odor removal and purification through an adsorption type purification material, such as activated carbon and nano live ore, the former can reach the purification effect to a certain extent, but because the types of harmful gas and peculiar smell which can be aimed at by the purification factor are limited, most of the harmful gas and peculiar smell can not be eliminated, the application range is narrow, and the effect is not obvious; the latter adopts an adsorption mode, so the application range is very wide, most harmful gases and peculiar smells can be covered, the using effect is good, but the defect is that the adsorption effect of the adsorption type purifying material can finally reach saturation, the purifying function is lost after saturation, the purifying material needs to be replaced, and the using cost is increased, so the air purifying device with the self-cleaning function is one of the subjects of development and research in the air purifying industry. 208296154U discloses a self-cleaning air purifier, which comprises a purifier box body, and is characterized in that the purifier box body is provided with a motor, an air inlet, an air outlet and a control area, the motor is arranged at the top end of the purifier box body, the control area is arranged at the upper part of a front side plate of the purifier box body, the control area comprises a knob, a display screen arranged at the central position of the knob and a button arranged at the lower end of the knob, the air inlet is arranged at the middle part of the front side plate of the purifier box body and is provided with a wind shield, an air inlet gap is formed between the air inlet and the wind shield, the air outlet is arranged at two ends of the motor at the top end of the purifier box body, an installation plate is arranged at the back of the front side plate of the purifier box body, the installation plate is provided with a plurality of installation positioning holes, a hollow purification, the improved purifier is characterized in that a filtering layer, fan blades, a partition plate and a dust storage box are arranged in the purifying bin, the filtering layer is an aluminum alloy filtering net, an antibacterial filtering net and an HEPA high-efficiency filtering net from bottom to top in sequence, the partition plate is welded at the lower position of the purifying bin, the dust storage box is arranged on the upper portion of the partition plate, the filtering layer is arranged on the upper portion of the dust storage box and is close to a vibrator which is respectively arranged on the upper portion and the lower portion of the filtering layer, an essential oil box is arranged on the inner wall of the. Patent document publication No. 107998796a discloses a vehicle-mounted air purifier with a side-opening self-cleaning net device, comprising an air duct and at least 2 independent air purifying units connected in series according to an air passage, wherein the first stage independent air purifying unit takes a metal net as a filtering main body; the air purification device is arranged on the outer side of the top of the passenger car compartment, or an air inlet of the air purification device is arranged outside the passenger car compartment; the air inlet of the air purification device is an air inlet which can enlarge the area of the air inlet and is provided with an expansion plate, and the air inlet is arranged on the front surface of a vehicle. The self-cleaning targets aimed at by the prior art are different, high in cost and strong in pertinence, and are not suitable for market promotion.

The field of air purification is urgently needed to develop a purification product which has good purification effect, is simple and easy to use and has low cost to replace a passive purifier on the current market.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome not enough among the prior art, provide a purifier with self-cleaning function, purifier can realize the automatically cleaning along with purifier's work, has avoided purifier's frequent change, extension purifier's life.

The utility model discloses a realize above-mentioned purpose, realize through following technical scheme, a purifier with self-cleaning function, including shell and purifying material, characterized by: the shell is equipped with intake zone, clean area, blast zone and the exhaust zone who arranges in proper order, the clean area embeds there is absorption formula purifying material, the both sides face is equipped with the air vent with external intercommunication around intake zone and the exhaust zone of shell, and the rigid coupling has the switching-over valve respectively in intake zone and the exhaust zone, the switching-over valve both ends are equipped with sealing piston, and sealing piston removes back and air vent sealing connection, the rigid coupling has the fan in the blast zone, intake zone, clean area and exhaust zone treat through switching-over valve and fan control that purify the gas or fresh air flows in from purifying material's one end, and the other end flows out and constitutes the clean mechanism of treating the gas intake and exhaust passageway or the automatically cleaning mechanism of fresh air intake and exhaust passageway.

The purification mechanism and the self-cleaning mechanism respectively control the inlet and the outlet of gas to be purified and the inlet and the outlet of fresh air through the opening and closing reversing of the reversing valve which is alternately switched.

The left end face and the right end face of the adsorption type purification material of the purification area are provided with dustproof filter screens for isolating the purification area from the air inlet area and the air blowing area.

And a protective net for preventing sundries from entering is inserted outside the air vent of the shell.

Has the advantages that: compared with the prior art, the utility model discloses a switching-over valve is to fresh air and the alternative switching of waiting to purify gas admission and exhaust passageway for fresh air and waiting to purify gas pass through purifying material in turn, promptly: when the reversing valve opens the fresh air inlet and outlet channel and closes the gas inlet and outlet channel to be purified, the fresh air enters the purifying material to complete the cleaning work of the purifying material; when the reversing valve opens the gas inlet and outlet channel for purifying gas and closes the fresh air inlet and outlet channel simultaneously, the gas to be purified enters the purifying material, and the purifying work of the purifying material for purifying the gas to be purified is completed, so that the gas to be purified can be alternately worked, the purifying device not only can effectively purify the gas to be purified, but also has a self-cleaning function, the trouble that the purifying device needs to frequently replace the purifying material is solved, the method is simple, and the material and labor cost are saved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention;

fig. 2 is a perspective view of the assembled and opened upper cover of the present invention;

FIG. 3 is a schematic view of the working principle of the present invention;

fig. 4 is a plan view of the present invention for opening the upper cover.

In the figure: 1. the air purifier comprises a shell, 1-1-1 parts of an air inlet channel for gas to be purified, 1-1-2 parts of an air inlet channel for fresh air, 1-1-3 parts of an air exhaust channel for fresh air, 1-1-4 parts of an air exhaust channel for gas to be purified, 1-2-1 parts of an air inlet channel for gas to be purified, 1-2-2 parts of an air inlet channel for gas to be purified, 1-2-3 parts of an air inlet channel for gas to be purified, 1-2-4 parts of an air outlet channel for gas to be purified, 1-5 parts of an air outlet channel for gas to be purified, 1-6-1 parts of an air outlet channel for gas to be purified, 1-2-3 parts of an air outlet channel for gas to be purified, 1-3 parts of an, The device comprises a coil, 2-1-1-2 parts, a permanent magnet, 2-1-1-4 parts, an input lead, 2-1-1-5 parts, a movable iron core, 2-1-2 parts, 2-1-3 parts, 2-2-2 parts, 2-2-3 parts, a piston, 3 parts, a fan, 4 parts, an adsorption type purification material, 5-1 parts, 5-2 parts, a dustproof filter screen, 6-1 parts, 6-2 parts, 6-3 parts, 6-4 parts, a protective net, 7-1 parts, 7-2 parts, an air guide pipe joint, 8-1 parts, 8-2 parts, an air guide pipe, 9 parts, an air inlet zone reversing valve lead, 10 parts, a control circuit, 11 parts, a power switch, 12 parts, a power line with a sheath, 13 parts, a speed regulator, 14;

h1, an air inlet area, H2, a purification area, H3, an air blast area, H4 and an exhaust area;

A. fresh air, B, gas to be purified.

Detailed Description

The following detailed description of the embodiments according to the present invention with reference to the preferred embodiments is as follows:

see attached 1 ~ 4 in detail, the utility model provides a purifier with self-cleaning function, including shell and scavenging material, the shell is equipped with intake zone, clean area, blast zone and the exhaust zone of arranging in proper order, the clean area embeds there is absorption formula scavenging material, both sides face is equipped with the air vent with external intercommunication around the intake zone of shell and the exhaust zone, and the rigid coupling has the switching-over valve respectively in intake zone and the exhaust zone, the switching-over valve both ends are equipped with sealing piston, and sealing piston removes back and air vent sealing connection, the rigid coupling has the fan in the blast zone, intake zone, clean area and exhaust zone treat through switching-over valve and fan control that the gas is purified or fresh air flows in from scavenging material's one end, and the other end flows and constitutes the clean mechanism who treats the intake and exhaust passageway or the clean gas mechanism of fresh air intake and exhaust passageway.

Preferably, the cleaning mechanism and the self-cleaning mechanism respectively control the inlet and the outlet of the gas to be cleaned and the inlet and the outlet of the fresh air by the on-off reversing of the alternating switching of the reversing valve.

In the preferred scheme of the embodiment, the left end surface and the right end surface of the adsorption type purification material of the purification area are provided with dustproof filter screens 5-1 and 5-2 which isolate the purification area from the air inlet area and the air blowing area.

Protective nets 6-1, 6-2, 6-3 and 6-4 for preventing sundries from entering are inserted outside the air holes of the shell.

Examples

The manufactured finished product of the purification device with the self-cleaning function is taken as an example for detailed description. The purifying device with the self-cleaning function mainly comprises a shell 1, reversing valves 2-1 and 2-2, a fan 3, an adsorption type purifying material 4, dustproof filter screens 5-1 and 5-2, protective screens 6-1 and 6-2, 6-3 and 6-4 and air pipe connectors 7-1 and 7-2. The casing is divided into a grid-shaped purification device main body framework which forms an air inlet area H1, a purification area H2, an air blowing area H3 and an air exhaust area H4 in sequence along the longitudinal axis direction of the casing, wherein the positions of the air blowing area H3 and the purification area H2 can be exchanged.

As shown in fig. 3, the arrangement of the regions is linear, and the regions may be stacked to form a three-dimensional structure according to the use situation. The shell forms an air inlet and exhaust passage 1-1-2-1-3 (namely a self-cleaning mechanism) for fresh air and an air inlet and exhaust passage 1-1-4 (namely an air purification mechanism) for gas to be purified from an air inlet area H1 to an air exhaust area (H2-H4) through a purification area and a blast area.

As shown in fig. 3, the fresh air inlet channel 1-1-2 is used for fresh air a to enter, the fresh air outlet channel 1-1-3 is used for fresh air a to exit, the gas inlet channel 1-1-1 to be purified is used for gas B to enter, the gas outlet channel 1-1-4 to be purified is used for gas B to exit, and the two air inlet and outlet channels work alternately.

As shown in figure 4, the power device of the reversing valves 2-1 and 2-2 adopts pulse type reversing electromagnets 2-1-1 and 2-2-1. The reversing valve 2-1 is arranged in an air inlet area H1 of the shell, the reversing valve 2-2 is arranged in an air outlet area H4 of the shell, and the reversing valve 2-1 of the air inlet area H1 and the reversing valve 2-2 of the air outlet area H4 keep simultaneously and simultaneously move in the same direction, so that the fresh air inlet and outlet channel is opened and closed at the same time or the gas to be purified is opened and closed at the same time. The air inlet channel reversing valve 2-1 mainly comprises a reversing electromagnet 2-1-1, pistons 2-1-2 and 2-1-3, the pistons 2-1-2 and 2-1-3 are arranged at two ends of a movable iron core of the reversing electromagnet 2-1-1, the exhaust channel reversing valve 2-2 and the air inlet channel reversing valve 2-1 are the same in structure and mainly comprise the reversing electromagnet 2-2-1, the pistons 2-2-2 and 2-2-3, and the pistons 2-2-2 and 2-2-3 are arranged at two ends of the movable iron core of the reversing electromagnet 2-1-1. The reversing valve drives the pistons fixed at the two ends of the reversing valve to reciprocate in the same direction through the movable iron core of the reversing electromagnet, so that the fresh air inlet and outlet channels 1-1-2 and 1-1-3 are opened together, the gas inlet and outlet channels 1-1-1 and 1-1-4 to be purified are closed together, and the operations opposite to the operations are carried out, and the opening and the closing are repeatedly and alternately carried out.

As shown in fig. 4, the commutating electromagnet 2-1-1 is a pulse commutating electromagnet, the working principle of the commutating electromagnet is the same as the working principle of the driving mechanism in the company patent No. Z L201420261879.0 [ lens type automobile headlamp optical module with integrated far and near light and double light sources ], and the commutating power structure of the commutating electromagnet is coils 2-1-1-1, 2-1-3, permanent magnets 2-1-1-2, and moving iron cores 2-1-1-5. when the control circuit 10 conducts instant pulse energization (about 30-100 ms) to the coils 2-1-1-1, 2-1-1-3 through the input lead 2-1-1-4, an instant electromagnetic force repulsive to the permanent magnets 2-1-1-2 is generated to push the moving iron cores 2-1-1-5 magnetized by the permanent magnets to generate unidirectional movement, and when the pulse control signals are opposite, the instant electromagnetic repulsive force generated is also opposite to push the moving iron cores to move in opposite directions.

As shown in fig. 1 and 4, the control circuit 10 is powered by a power line 12 with a sheath installed at a power inlet 1-3 and switched by a power switch 11 installed at a power switch installation hole 1-4, the control circuit 10 is composed of a single FR4 circuit board, the circuit board forms a control circuit with an auxiliary electronic component by a control chip (a single chip microcomputer), and the circuit board is connected with the power switch 11, the fan 3, the reversing valve 2-1, the reversing valve 2-2 and the speed regulator 13 by a lead with a plug-in, wherein a lead 9 connected with the reversing valve 2-1 of the air intake area is buried below the edge of the purifying material 4 and passes through the purifying area H2 to be connected with the reversing valve 2-1. The control circuit 10 controls the operation of the fan 3 and the switching work of the reversing valves 2-1 and 2-2, in order to adapt to the purification requirements of different occasions, the switching time of each time of the reversing valve is manually regulated and controlled by a speed regulator 13 arranged on a mounting hole 1-5 of the speed regulator, the control circuit 10 controls the switching time of the reversing valve to be adjustable from 1 hour to 48 hours through the speed regulator 13, and the shorter the switching time is, the better the purification effect is. The speed regulator is realized by adopting a rotary variable resistor, the adjustable resistance range of the variable resistor is 0 omega-1M omega, the gear control is realized by reading the resistance value of the variable resistor through a control circuit, different resistance values correspond to different switching time, and the resistance values from 0 omega to 1M omega respectively correspond to 1 hour to 48 hours.

As shown in fig. 3 and 4, the purifying material 4 is disposed in the purifying region H2 of the housing, and a reusable adsorption-type purifying material is used, such as: activated carbon, nano-live ore, and the like. The fresh air a and the gas B to be purified can smoothly pass through the purifying material 4 in turn, and the flowing gas flows in from one end of the purifying material 4 and flows out from the other end. The preferred scheme of the purification material 4 is to use activated carbon as raw material to make honeycomb carbon block, the honeycomb direction is air flow direction, as shown by dotted line in the figure, the air can smoothly pass through the purification material to improve the purification speed. Another simple method is to replace the honeycomb carbon block with fine-particle carbon bag with good air permeability, which can also have better purification and self-cleaning effects. Activated carbon is selected for the present case to be the purifying material, a large amount of capillary micropores on the activated carbon top layer have been utilized, these micropores can form effectual adsorption, thereby absorb peculiar smell or harmful gas molecule in the air, play the air-purifying effect, when the adsorption process is saturated, exert fresh air to the purifying material again, fresh air molecule produces the replacement effect through the hot motion of molecule and the exhaust gas molecule of being liable to be replaced in the activated carbon top layer micropore, thereby let the purifying material resume purification performance, the speed that fresh air flows is fast recovery speed is fast more.

As shown in fig. 1 and 4, the blower 3 is a blower, and the FD4510 of shenzhen wind source electronics ltd is adopted in the present application, and is fixed in the blowing area H3 of the housing by bolts through a blower fixing hole, the air inlet of the blower 3 faces the blowing area, the air outlet of the blower 3 faces the exhaust area H4 of the housing 1, the air outlet of the blower 3 is the only gas passage between the blowing area H3 and the exhaust area H4 of the housing 1, and the blower 3 provides power for the gas flow of the air inlet and exhaust channel. When the fan 3 works, the air A or B is driven to enter from the air inlet channel of the shell, the air enters the blast area H3 after passing through the purification area H2, is sucked by the fan 3 from the air inlet, is discharged into the exhaust area H4 from the air outlet, and is finally discharged from the exhaust channel.

As shown in fig. 1 and 4, the dustproof filter screens 5-1 and 5-2 are inserted at the two ends of the purifying material 4 for gas inlet and outlet, so as to ensure that the purifying material 4 is isolated from other areas and prevent dust in the purifying material 4 from overflowing.

As shown in fig. 1 and 4, the protective nets 6-1, 6-2, 6-3 and 6-4 are installed outside the air inlet and outlet channel of the housing to prevent impurities from entering. In the embodiment, the slots are processed at the air inlet and outlet channels on the front side surface and the rear side surface of the air inlet area and the air outlet area of the shell, so that the protective net can be conveniently inserted and taken out.

As shown in figure 4, the air duct joints 7-1, 7-2 are inserted at the outer edges of the fresh air inlet and outlet channels of the shell or the air inlet and outlet channels of the gas to be purified and are used for being connected with the air ducts 8-1, 8-2 of the fresh air or the gas to be purified. The air guide pipe is additionally arranged, because if the purifying device is placed in a space such as an automobile cab, air in the automobile can directly enter and exit from an air inlet and outlet channel for purifying air to be purified, the air guide pipe does not need to be arranged, and fresh air outside the automobile needs to extend to a proper position outside the automobile through the air guide pipes 8-1 and 8-2 to be introduced and discharged, otherwise, the purifying device is placed in the space such as the automobile cab, and the like, so that the air guide pipe joints 7-1 and 7-2 only need to be arranged on one side of the air guide pipe joints, if the purifying device is arranged in a special position such as an air refreshing area which is neither in the cab nor outside the automobile, the purifying device needs to be provided with the air guide pipe joints and the air guide pipes on two sides, and the purifying device.

As shown in figures 1 and 4, the reversing valves 2-1 and 2-2 are installed in an air inlet area H1 and an air outlet area H4 of a shell 1 through screws, the speed regulator 13 is installed in a speed regulator installation hole 1-5 of the shell 1, the control circuit 10 is installed at the bottom of an air blowing area through screws, the speed regulator 13 is inserted into the control circuit 10 through a connector, the air inlet area reversing valve 2-1 is inserted into the control circuit 10 through a lead 9, a sheath with a sheath power line 12 is inserted into a power inlet 1-3 of the shell 1, a power switch 11 is buckled in a power switch installation hole 1-4, the power switch 11, the sheath power line 12, the air outlet area reversing valve 2-2 and the fan 3 are respectively inserted into the control circuit 10 through respective connectors, the fan 3 is fixed in the air blowing area of the shell 1 through bolts, and a dustproof filter screen 5-1, 5-2 is inserted into dustproof filter screen slots 1-6-1 and 1-6-2 of the shell 1, the purifying material 4 is placed in a purifying area H2 of the shell 1, the protective screens 6-1, 6-2, 6-3 and 6-4 are inserted into the protective screen slots 1-2-1, 1-2-2, 1-2-3 and 1-2-4 of the shell 1, the upper cover 14 is fixed on the upper part of the shell 1 through screws, the air duct connectors 7-1 and 7-2 are inserted into the outer edges of a fresh air inlet and outlet channel of the shell 1, and are communicated with a fresh air area through air ducts 8-1 and 8-2.

Principle of operation

The purifying device mainly utilizes the adsorption characteristic and the molecular thermal motion principle of the surface layer of the adsorption type purifying material as a method for realizing air purification and self-cleaning, namely, the surface of the purifying material can adsorb waste gas or peculiar smell molecules, and can replace and take away harmful gas or peculiar smell molecules on the surface layer in a flowing fresh air environment, so that the purifying effect and the self-cleaning efficiency can be well improved if the surface area of the purifying material can be effectively increased, and the honeycomb type active carbon block is adopted in the scheme to increase the surface area of the contact between the active carbon and the gas.

The implementation means is as follows: the purification device utilizes the reversing function of the reversing valve as a means for realizing two different functions of the purification function and the self-cleaning function, and the purification and the self-cleaning are realized by firstly purifying through an adsorption type purification material and then introducing fresh air to replace waste gas molecules on the surface of the purification material through the reversing of the reversing valve.

As shown in fig. 3 and 4, in the working process of this embodiment, when the reversing valves 2-1 and 2-2 are switched to the direction Dn, the air inlet channel 1-1-1-1 to be cleaned and the air outlet channel 1-1-4 to be cleaned are closed, and at the same time, the fresh air inlet channel 1-1-2 and the fresh air outlet channel 1-1-3 are opened, and fresh air a is driven by the blower 3 to enter the air inlet region H1 from the fresh air inlet channel 1-1-2, enter the cleaning region H2 through the dust-proof filter screen 5-1, flow through the cleaning material 4, enter the air blowing region H3 through the dust-proof filter screen 5-2, is sucked by the blower 3 from the air inlet, then is discharged to the air discharge region H4 from the air outlet of the blower 3, and finally is discharged from the fresh air outlet channel 1-1-3, in the process that fresh air flows through the purifying material, waste gas on the surface of the purifying material is taken out, so that the purifying material is self-cleaned; similarly, when the reversing valves 2-1 and 2-2 are switched to the Up direction, the gas inlet channel 1-1-1-1 to be purified and the gas outlet channel 1-1-4 to be purified are opened, the fresh air inlet channel 1-1-2 and the fresh air outlet channel 1-1-3 are closed, the gas B to be purified enters the gas inlet area H1 from the gas inlet channel 1-1-1 to be purified under the drive of the fan 3, enters the purification area H2 through the dustproof filter screen 5-1, flows through the purification material 4, enters the blast area H3 through the dustproof filter screen 5-2, is sucked by the fan 3 from the air inlet and then is discharged to the gas outlet area H4 from the gas outlet of the fan 3, and is finally discharged from the gas outlet channel 1-1-4 to be purified, in the process that the gas to be purified flows through the purification material, the clean surface of the purifying material can adsorb the waste gas in the gas to be purified, thereby playing a role in purifying the gas to be purified.

Experimental comparison data: taking 2 equal blocks of honeycomb activated carbon blocks as purification materials, taking 400g of each block, directly putting one of the blocks into a constant-temperature constant-humidity box, setting the temperature in the box to be 25 ℃, the humidity to be 30 percent and setting the temperature in the box to be 8 percent in the morning every day: 00 dropping 1g of absolute ethyl alcohol into the constant temperature box, 20 parts per night: 00, testing the concentration of the ethanol gas in the incubator, wherein the concentration of the ethanol gas in the incubator is basically maintained at about 0.01mg/m3 when the concentration is tested on days 1-8, and then gradually increasing, and the concentration of the ethanol gas in the incubator is 43mg/m3 when the concentration is tested on day 15; under the same test condition, another piece of purification material is placed into the purification device, the purification device is placed into the same constant-temperature constant-humidity box, and the machine is operated, and after continuous monitoring for 180 days, the concentration of the ethanol gas is always kept to be about 0.01mg/m3 measured every day. It can be seen from the comparison data that the purifying device with the self-cleaning function can obviously prolong the service life of the purifying material and has good self-cleaning function.

The purifying device has the working principle that the purifying and self-cleaning are realized by repeatedly exchanging fresh air and gas to be purified, so the purifying device is more suitable for occasions where the fresh air can be conveniently obtained, such as a closed automobile and a refrigerator, and the outside of the purifying device is the air which can be conveniently obtained, so the purifying device can be well applied to the products.

The above detailed description of the purification apparatus with self-cleaning function with reference to the embodiments is illustrative and not restrictive, and several embodiments can be enumerated within the scope of the limitations, so that changes and modifications without departing from the general concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a purifier with self-cleaning function, includes shell and purifying material, characterized by: the shell is equipped with intake zone, clean area, blast zone and the exhaust zone who arranges in proper order, the clean area embeds there is absorption formula purifying material, the both sides face is equipped with the air vent with external intercommunication around intake zone and the exhaust zone of shell, and the rigid coupling has the switching-over valve respectively in intake zone and the exhaust zone, the switching-over valve both ends are equipped with sealing piston, and sealing piston removes back and air vent sealing connection, the rigid coupling has the fan in the blast zone, intake zone, clean area and exhaust zone treat through switching-over valve and fan control that purify the gas or fresh air flows in from purifying material's one end, and the other end flows out and constitutes the clean mechanism of treating the gas intake and exhaust passageway or the automatically cleaning mechanism of fresh air intake and exhaust passageway.

2. The purification apparatus with self-cleaning function as claimed in claim 1, wherein: the purification mechanism and the self-cleaning mechanism respectively control the inlet and the outlet of gas to be purified and the inlet and the outlet of fresh air through the opening and closing reversing of the reversing valve which is alternately switched.

3. The purification apparatus with self-cleaning function as claimed in claim 1, wherein: the left end face and the right end face of the adsorption type purification material are provided with dustproof filter screens for isolating a purification area from an air inlet area and an air blowing area.

4. The purification apparatus with self-cleaning function as claimed in claim 1, wherein: and a protective net for preventing sundries from entering is inserted outside the air vent of the shell.