CN213599528U - Multifunctional air purifier, device and system with high purification and pathogenic microorganism elimination - Google Patents
Multifunctional air purifier, device and system with high purification and pathogenic microorganism elimination Download PDFInfo
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- CN213599528U CN213599528U CN202022644987.4U CN202022644987U CN213599528U CN 213599528 U CN213599528 U CN 213599528U CN 202022644987 U CN202022644987 U CN 202022644987U CN 213599528 U CN213599528 U CN 213599528U
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Abstract
The utility model discloses a high multi-functional air purifier, device and system that purify and pathogenic microorganism disappears and kill, including the casing and set up fan and the controller in the casing, the casing is equipped with air inlet and gas outlet, fan and controller line connection, and the fan sets up between air inlet and gas outlet, still is equipped with primary filter screen, secondary filter screen, ozone ultraviolet lamp, photocatalyst filter screen and ozonolysis catalyst filter screen between air inlet and motor in proper order, ozone ultraviolet lamp and controller line connection. The particle including virus is filtered through primary filter screen and secondary filter screen, disinfects through bacterium, fungi, the virus of ozone ultraviolet lamp in to the air current, decomposes and gets rid of poisonous and harmful gas such as aldehyde, benzene class, nitrogen oxide in the gas through the photocatalyst filter screen, carries out catalytic decomposition with the ozone that the ozone ultraviolet lamp produced through ozone decomposition catalyst filter screen, avoids ozone loss indoor, comprehensive air-purifying, efficient.
Description
Technical Field
The utility model relates to an air purification technical field, concretely relates to high multi-functional air purifier, device and system that purify and pathogenic microorganism disappears and kills.
Background
With the rapid development of economy and the large consumption of energy, a large amount of harmful substances are generated, and the living space of people is filled with particles, sulfur oxides, nitrogen oxides and hydrocarbons, thereby seriously threatening the health of people. In order to make the air fresh, an air purifier is required to purify the air.
Present air purifier, purification function is incomplete, efficiency is not high, for example: some HEPA filter screens adopting H11-H12 grades have the filtering efficiency of more than 98 percent for particles with the diameter of more than 0.3 mu m, but do not filter the green energy rate for viruses with smaller diameter; some ultraviolet lamps are adopted for sterilization, but dead angles exist in the ultraviolet lamp irradiation, and the sterilization cannot be performed on places which cannot be irradiated; some adopt ozone to sterilize, although solve and sterilize the dead angle problem, when ozone released to the environment reaches certain concentration, people will appear the situation such as headache, throat dry and astringent, respiratory mucosa are damaged, endanger the health seriously; in addition, aldehydes, benzenes, nitrogen oxides and other substances in the environment can also harm the health of people.
SUMMERY OF THE UTILITY MODEL
Therefore, the utility model provides a high multi-functional air purifier, device and system that purify and pathogenic microorganism disappears and kills to solve the problem that current clarifier purification function is incomplete, efficiency is not high.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
the utility model discloses an aspect, a high purification and multi-functional air purifier of pathogenic microorganism elimination, include the casing and set up fan and the controller in the casing, the casing is equipped with air inlet and gas outlet, fan and controller line connection, the fan sets up between air inlet and gas outlet, still is equipped with primary filter screen, secondary filter screen, ozone ultraviolet lamp, photocatalyst filter screen and ozonolysis catalyst filter screen, ozone ultraviolet lamp and controller line connection between air inlet and motor in proper order.
Furthermore, the primary filter screen is a HEPA filter screen with H11-H12 level, the secondary filter screen is a HEPA filter screen with H13-H14 level, the catalyst of the photocatalyst filter screen is titanium dioxide, and the catalyst of the ozone decomposition catalyst filter screen is a cerium-manganese catalyst or manganese-based composite oxide catalyst for decomposing ozone.
Further, the multifunctional air purifier for high purification and pathogenic microorganism elimination further comprises an ozone concentration sensor, a first electric control door and a second electric control door which are connected with the control panel through a line, wherein the ozone concentration sensor is arranged in the shell and positioned between the air outlet and the fan, the first electric control door is arranged in the shell and positioned between the air inlet and the ozone ultraviolet lamp, and the second electric control door is arranged at the air outlet;
when the ozone concentration sensor detects that the concentration of ozone at the air outlet is greater than or equal to the preset concentration, the ozone concentration sensor sends a signal to the control panel, the control panel controls the first electric control door and the second electric control door to be closed, the ozone ultraviolet lamp is closed at the same time, the speed of the fan is reduced, the air in the shell is internally circulated, and the ozone in the shell is continuously purified by the ozone decomposition catalyst filter screen;
when the ozone concentration sensor detects that the ozone concentration is less than the preset concentration, the ozone concentration sensor sends a signal to the control panel, the control panel controls the first electric control door and the second electric control door to be opened, the ozone ultraviolet lamp is simultaneously opened, and the speed of the fan is enabled to be recovered to the normal rotating speed.
Furthermore, the catalyst filter screen comprises a honeycomb filter screen base body and a catalyst which is uniformly sprayed on the inner surface of the honeycomb of the filter screen base body.
Further, the housing includes a main body and a front side plate detachably fixed to the main body.
Further, the controller includes control panel and operating panel, operating panel with control panel line connection, operating panel set up in the top of casing, the control panel set up in inside the casing, fan and ozone ultraviolet lamp respectively with control panel line connection.
Further, high purification and multi-functional air purifier of pathogenic microorganism disinfection still include filter screen frame, the lateral part of casing is equipped with the interface, is equipped with in the casing with the continuous fixed slot of interface, is the rectangle after interface and the fixed slot are continuous, filter screen frame is the rectangle, and the filter screen is fixed in filter screen frame, filter screen frame can follow the interface and take out and insert the fixed slot to make things convenient for the change of filter screen frame's frame outside the casing is equipped with the handle.
Further, high purification and pathogenic microorganism disappear and kill multi-functional air purifier still include sealed frame of gluing, sealed frame of gluing is the rectangle, sealed frame of gluing set up in interface and fixed slot are equipped with the inserted sheet of evagination in all the other three frame outsides of filter screen frame, sealed glue frame towards the outer one side of casing be equipped with filter screen frame's the socket of frame looks adaptation outwards, sealed glue the inboard of remaining three frames be equipped with the slot of inserted sheet looks adaptation, filter screen frame inserts the back from the socket and seals with sealed frame of gluing mutually.
The second aspect of the utility model, a high purification and many functional air purification device of pathogenic microorganism disappear, it includes the utility model discloses the first aspect arbitrary high purification and many functional air purifier of pathogenic microorganism disappear.
The third aspect of the utility model, a high purification and many functional air purification system of pathogenic microorganism disappear and kill, it includes the utility model discloses the first aspect arbitrary high purification and many functional air purifier of pathogenic microorganism disappear and kill.
The utility model has the advantages of as follows:
the utility model provides a high purification and multi-functional air purifier of pathogenic microorganism disinfection, device and system not only can be used for inner space such as office, mill, bedroom by the mode of independently placing, can also be used for inner space such as high-speed railway, aviation, boats and ships by the mode of embedding installation, filters the particle including the virus through primary filter screen and secondary filter screen; bacteria, fungi and viruses in the air flow are killed and killed by an ozone ultraviolet lamp; under the condition of illumination, toxic and harmful gases such as aldehydes, benzenes, nitrogen oxides and the like in the gas are decomposed and removed through a photocatalyst filter screen; ozone generated by the ozone ultraviolet lamp is catalytically decomposed through the ozone decomposition catalyst filter screen, so that the ozone is prevented from being dissipated indoors. The air purifier not only can filter particles, but also can kill bacteria, fungi and viruses, does not cause secondary pollution such as ozone dissipation and the like, comprehensively purifies air, and has high efficiency.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural view of a multifunctional air purifier for high purification and pathogenic microorganism elimination provided in embodiments 1 and 2 of the present invention;
fig. 2 is a side view of a multifunctional air purifier for high purification and pathogenic microorganism elimination provided in embodiments 1-3 of the present invention;
fig. 3 is a schematic view of a filter screen frame (including a filter screen) of a multifunctional air purifier for purifying and killing pathogenic microorganisms provided in embodiment 3 of the present invention;
fig. 4 is a schematic view of a sealant frame of a multifunctional air purifier for purifying and killing pathogenic microorganisms provided in embodiment 3 of the present invention;
fig. 5 is a schematic structural view of a multifunctional air purifier for purifying and killing pathogenic microorganisms according to embodiment 4 of the present invention.
In the figure: 1-shell, 2-fan, 3-controller, 4-air inlet, 5-air outlet, 6-primary filter screen, 7-secondary filter screen, 8-ozone ultraviolet lamp, 9-photocatalyst filter screen, 10-ozone decomposition catalyst filter screen, 11-main body, 12-front side plate, 13-control plate, 14-operation panel, 15-filter screen frame, 16-interface, 17-handle, 18-sealing rubber frame, 19-plug sheet, 20-plug socket, 21-plug socket, 22-ozone concentration sensor, 23-first electric control door, 24-second electric control door, 25-air outlet, 26-cavity and 27-side hole.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.
Example 1
As shown in fig. 1 and 2, embodiment 1 provides a multifunctional air purifier with high purification and pathogenic microorganism killing functions, which can be used at home, and can also be used in small spaces such as offices, automobiles and the like. Including casing 1 and set up fan 2 and controller 3 in casing 1, casing 1 is equipped with air inlet 4 and gas outlet 5, fan 2 and 3 line connection of controller, and fan 2 sets up between air inlet 4 and gas outlet 5, still is equipped with primary filter screen 6, secondary filter screen 7, ozone ultraviolet lamp 8, photocatalyst filter screen 9 and ozonolysis catalyst filter screen 10 between air inlet 4 and the motor in proper order. It should be noted that, between the air inlet 4 and the air outlet 5, the air flow passes through the primary filter screen 6, the secondary filter screen 7, the ozone ultraviolet lamp 8, the photocatalyst filter screen 9, the ozone decomposition catalyst filter screen 10 and the fan 2 once, and the condition that the air flow does not pass through the structures cannot occur; in other words, the primary filter screen 6, the secondary filter screen 7, the ozone ultraviolet lamp 8, the photocatalyst filter screen 9, the ozone decomposition catalyst filter screen 10, and the fan 2 are installed in the housing 1, and the connection with the housing 1 is sealed.
The primary filter screen 6 is a HEPA filter screen with H11-H12 level, the secondary filter screen 7 is a HEPA filter screen with H13-H14 level, the catalyst of the photocatalyst filter screen 9 is titanium dioxide, and the catalyst of the ozone decomposition catalyst filter screen 10 is a cerium-manganese catalyst or manganese-based composite oxide catalyst for decomposing ozone. The catalyst filter screen comprises a honeycomb filter screen base body and catalysts uniformly sprayed on the inner surface of the honeycomb of the filter screen base body.
The primary filter screen 6 can intercept common particles, the secondary filter screen 7 can intercept microorganisms including viruses, and the particle interception rate can reach 99.9%. Because the secondary filter screen 7 is high in price, the primary filter screen 6 is arranged in front of the secondary filter screen 7, the service life of the secondary filter screen 7 is prolonged, and the cost performance is improved.
The spectral lines of the ozone UV lamp 8 are at 180-260nm, preferably at two of 254nm and 185 nm. Wherein, 254nm is ultraviolet ray with low ozone wave band, and 185nm is ultraviolet ray with high ozone wave band. Two ozone ultraviolet lamps 8 with two wavelengths can be respectively installed, wherein the low ozone is mainly used for ultraviolet sterilization, and the high ozone is mainly used for ozone sterilization; or the low-ozone ultraviolet lamp is replaced by a deep ultraviolet UV-LED for ultraviolet sterilization, and the high-ozone ultraviolet lamp 8 is mainly used for ozone sterilization.
The multifunctional air purifier for high purification and pathogenic microorganism sterilization of the embodiment filters particles including viruses through the primary filter screen 6 and the secondary filter screen 7; bacteria, fungi and viruses in the air flow are killed and killed by an ozone ultraviolet lamp 8; under the condition of illumination, toxic and harmful gases such as aldehydes, benzenes, nitrogen oxides and the like in the gas are decomposed and removed through the photocatalyst filter screen 9; carry out catalytic decomposition with the ozone that ozone ultraviolet lamp 8 produced through ozonolysis catalyst filter screen 10, through the real-time supervision to the inside ozone concentration of utensil, the switching of control inside vent avoids the ozone loss that the concentration exceeds standard to indoor. The air purifier not only can filter particles, but also can kill bacteria, fungi and viruses, does not cause secondary pollution such as ozone dissipation and the like, comprehensively purifies air, and has high efficiency.
Example 2
As shown in fig. 1 and 2, embodiment 2 provides another multifunctional air purifier for high purification and pathogenic microorganism killing, which has a structure substantially the same as that of embodiment 1, and only the differences will be described below.
The housing 1 includes a main body 11 and a front side plate 12. The front side plate 12 is detachably fixed to the main body 11. The filter screen is convenient to mount and dismount, and the interior of the shell 1 is convenient to clean. The front side plate 12 is provided with an air inlet 4, and the side surface of the shell 1 is also provided with the air inlet 4, so that the air inlet resistance is reduced, and the power consumption of the fan 2 is reduced.
The controller 3 includes a control board 13 and an operation panel 14. The operation panel 14 is connected to the control board 13 by wiring. The operation panel 14 is disposed on the top of the housing 1, and the operation panel 14 also serves as a top side plate of the housing 1. Control panel 13 sets up inside casing 1, and fan 2 and ozone ultraviolet lamp 8 are connected with 13 circuit connections of control panel respectively. The on/off of the ozone ultraviolet lamp 8 and the on/off air speed of the fan 2 are controlled by an operation panel 14 and a control panel 13.
Example 3
As shown in fig. 2 to 4, embodiment 3 provides another multifunctional air purifier for high purification and pathogenic microorganism killing, which has a structure substantially the same as that of embodiment 1, and only the differences will be described below.
The multifunctional air purifier with high purification and pathogenic microorganism killing functions further comprises a filter screen frame 15. The side of the casing 1 is provided with a connector 16, the casing 1 is provided with a fixing groove (not shown) continuous with the connector 16, and the connector 16 is rectangular after being continuous with the fixing groove. The filter screen frame 15 is rectangular, and the filter screen is fixed to the filter screen frame 15. The side-draw type screen frame 15 can be drawn out of the mouthpiece 16 and inserted into the fixing groove to facilitate replacement of the screen. After a period of use, the screen frame 15 may be removed and the screen replaced or cleaned (spray water or micro-flow rinsing), or the screen may be replaced along with the screen frame 15.
In a preferred embodiment, a handle 17 is provided on the frame of the screen frame 15 facing the outside of the housing 1 to facilitate the extraction of the screen frame 15.
In order to seal the screen frame 15 with the mouthpiece 16 and the fixing groove, the high purification and pathogenic microorganism killing multifunctional air purifier further comprises a sealant frame 18. The sealing rubber frame 18 is rectangular, the sealing rubber frame 18 is arranged on the connector 16 and the fixing groove, convex insertion pieces 19 are arranged on the outer sides of the rest three frames of the filter screen frame 15, one side, facing the outside of the shell 1, of the sealing rubber frame 18 is provided with a socket 20 matched with the outward frame of the filter screen frame 15, the inner sides of the rest three frames of the sealing rubber are provided with insertion grooves 21 matched with the insertion pieces 19, and the filter screen frame 15 is sealed with the sealing rubber frame 18 after being inserted into the socket 20. This makes it possible to seal the screen frame 15 to the mouthpiece 16 and to the retaining groove.
Example 4
As shown in fig. 5, embodiment 4 provides another multifunctional air purifier for high purification and pathogenic microorganism killing, which has a structure substantially the same as that of embodiments 1-3, and only the differences will be described below.
The multifunctional air purifier for high purification and pathogenic microorganism sterilization further comprises an ozone concentration sensor 22, a first electric control door 23 and a second electric control door 24 which are electrically connected with the control panel 13. The ozone concentration sensor 22 is arranged in the shell and positioned between the air outlet 5 and the fan 2. The first electric control door 23 is arranged in the shell and positioned between the air inlet 4 and the ozone ultraviolet lamp 8. The second electrically controlled door 24 is provided at the air outlet 5. Specifically, the first electric control door 23 is positioned between the secondary filter screen 7 and the ozone ultraviolet lamp 8, and during internal circulation, ozone does not need to pass through the primary filter screen 6 and the secondary filter screen 7; a second electrically controlled door 24 is provided inside the housing at the air outlet 5. A chamber 26 is arranged between the air outlet 25 of the fan 2 and the air outlet 5 of the shell, and the ozone concentration sensor 22 is arranged in the chamber 26 and is positioned at the air outlet 25 of the fan 2; a side hole 27 is formed in the side wall of the chamber 26, and during internal circulation, the air outlet 5 of the housing is closed by the second electric control door 24, and the airflow from the air outlet 25 of the fan 2 flows to the ozone decomposition catalyst filter screen 10 through the side hole 27.
When the ozone concentration sensor 22 detects that the concentration of ozone is greater than or equal to a preset concentration (a preset threshold value of the concentration of ozone is set to be a concentration value dangerous to a human body), the ozone concentration sensor 22 sends a signal to the control board 13, the control board 13 controls the first electric control door 23 and the second electric control door 24 to be closed, the ozone ultraviolet lamp 8 is closed at the same time, the speed of the fan 2 is reduced, air in the shell is circulated in the shell, and the ozone in the shell is continuously purified by the ozone decomposition catalyst filter screen 10; when the ozone concentration sensor 22 detects that the ozone concentration is less than the preset concentration, the ozone concentration sensor 22 sends a signal to the control panel 13, the control panel 13 controls the first electric control door 23 and the second electric control door 24 to be opened, the ozone ultraviolet lamp 8 is simultaneously opened, and the speed of the fan 2 is enabled to be recovered to the normal rotating speed.
Through controlling the opening and closing of the two electric control doors, the change of internal circulation and external circulation can be realized, and the ozone overflow is avoided, so that the damage of the ozone to human bodies and the environment is avoided.
Example 5
Example 6
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a high multi-functional air purifier that purifies and pathogenic microorganism disappears and kills, includes the casing and sets up fan and controller in the casing, the casing is equipped with air inlet and gas outlet, fan and controller line connection, the fan sets up between air inlet and gas outlet, its characterized in that still is equipped with primary filter screen, secondary filter screen, ozone ultraviolet lamp, photocatalyst filter screen and ozonolysis catalyst filter screen between air inlet and motor in proper order, ozone ultraviolet lamp and controller line connection.
2. The multifunctional air purifier for purifying and killing pathogenic microorganisms of claim 1, wherein the primary filter screen is HEPA filter screen with H11-H12 grade, the secondary filter screen is HEPA filter screen with H13-H14 grade, the catalyst of the photocatalyst filter screen is titanium dioxide, and the catalyst of the ozone decomposition catalyst filter screen is cerium-manganese catalyst or manganese-based composite oxide catalyst for decomposing ozone.
3. The multifunctional air purifier for purifying and killing pathogenic microorganisms of claim 1, wherein the catalyst filter screen comprises a honeycomb filter screen substrate and a catalyst uniformly sprayed on the inner surface of the honeycomb of the filter screen substrate.
4. A multifunctional air purifier for purifying and killing pathogenic microorganisms as recited in claim 1, wherein said housing comprises a main body and a front plate, said front plate being detachably fixed to said main body.
5. The multifunctional air purifier for purifying and killing pathogenic microorganisms of claim 1, wherein the controller comprises a control panel and an operation panel, the operation panel is connected with the control panel through a circuit, the operation panel is arranged at the top of the shell, the control panel is arranged inside the shell, and the fan and the ozone ultraviolet lamp are respectively connected with the control panel through a circuit.
6. The multifunctional air purifier for highly purifying and killing pathogenic microorganisms of claim 5, further comprising an ozone concentration sensor, a first electric control door and a second electric control door, wherein the ozone concentration sensor, the first electric control door and the second electric control door are connected with the control panel through lines, the ozone concentration sensor is arranged in the shell and positioned between the air outlet and the fan, the first electric control door is arranged in the shell and positioned between the air inlet and the ozone ultraviolet lamp, and the second electric control door is arranged at the air outlet;
when the ozone concentration sensor detects that the concentration of ozone at the air outlet is greater than or equal to the preset concentration, the ozone concentration sensor sends a signal to the control panel, the control panel controls the first electric control door and the second electric control door to be closed, the ozone ultraviolet lamp is closed at the same time, the speed of the fan is reduced, the air in the shell is internally circulated, and the ozone in the shell is continuously purified by the ozone decomposition catalyst filter screen;
when the ozone concentration sensor detects that the ozone concentration is less than the preset concentration, the ozone concentration sensor sends a signal to the control panel, the control panel controls the first electric control door and the second electric control door to be opened, the ozone ultraviolet lamp is simultaneously opened, and the speed of the fan is enabled to be recovered to the normal rotating speed.
7. The multifunctional air purifier for purifying and killing pathogenic microorganisms of claim 1, further comprising a filter screen frame, wherein the side of the casing is provided with an interface, a fixing groove is formed in the casing and is continuous with the interface, the interface and the fixing groove are continuous and then are rectangular, the filter screen frame is rectangular, the filter screen is fixed on the filter screen frame, the filter screen frame can be drawn out from the interface and inserted into the fixing groove, so that the filter screen can be conveniently replaced, and a handle is arranged on the frame of the filter screen frame facing the outside of the casing.
8. The multifunctional air purifier for purifying and killing pathogenic microorganisms of claim 7, further comprising a rectangular sealant frame, wherein the sealant frame is disposed at the joint and the fixing groove, the outer sides of the other three frames of the filter screen frame are provided with convex insertion pieces, one side of the sealant frame facing the outside of the housing is provided with a socket adapted to the outward frame of the filter screen frame, the inner sides of the other three frames of the sealant are provided with slots adapted to the insertion pieces, and the filter screen frame is sealed with the sealant frame after being inserted from the socket.
9. A multifunctional air purification device for highly purifying and killing pathogenic microorganisms, which is characterized by comprising the multifunctional air purifier for highly purifying and killing pathogenic microorganisms according to any one of claims 1 to 8.
10. A multifunctional air purification system for highly purifying and killing pathogenic microorganisms, which is characterized by comprising the multifunctional air purifier for highly purifying and killing pathogenic microorganisms according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022644987.4U CN213599528U (en) | 2020-11-16 | 2020-11-16 | Multifunctional air purifier, device and system with high purification and pathogenic microorganism elimination |
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| CN202022644987.4U CN213599528U (en) | 2020-11-16 | 2020-11-16 | Multifunctional air purifier, device and system with high purification and pathogenic microorganism elimination |
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| CN213599528U true CN213599528U (en) | 2021-07-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143674A (en) * | 2022-07-12 | 2022-10-04 | 珠海格力电器股份有限公司 | Refrigerator odor purification control method and refrigerator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115143674A (en) * | 2022-07-12 | 2022-10-04 | 珠海格力电器股份有限公司 | Refrigerator odor purification control method and refrigerator |
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