CN214307474U - Air purifier - Google Patents
Air purifier Download PDFInfo
- Publication number
- CN214307474U CN214307474U CN202023347236.2U CN202023347236U CN214307474U CN 214307474 U CN214307474 U CN 214307474U CN 202023347236 U CN202023347236 U CN 202023347236U CN 214307474 U CN214307474 U CN 214307474U
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- China
- Prior art keywords
- air
- air inlet
- cover
- air duct
- purifier
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000000746 purification Methods 0.000 claims abstract description 16
- 238000004887 air purification Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000003811 curling process Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
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Abstract
The utility model discloses an air purifier, including purifying module and screen panel, purifying module has the wind channel, purifying module set up in the screen panel, the screen panel includes the air inlet cover and goes out the fan housing, the air inlet cover sets up purifying module's periphery, the air inlet cover different regional equipartition in position put with the fresh air inlet of wind channel intercommunication, go out the fan housing set up in purifying module's tip, go out the fan housing have with the wind channel intercommunication the exhaust vent. The utility model discloses among the air purifier, the fresh air inlet has been arranged to 360 orientations of air inlet cover for 360 orientations can be followed to the room air, in the omnidirectional gets into air purifier promptly, realize air purifier's all-round air inlet, thereby make the air can not have the dead angle circulation flow, avoid purifying the dead angle, and the omnidirectional air inlet mode can make the room air in a large number and enter into air purifier fast and obtain purifying, improved purification efficiency, optimized purifying effect, satisfy the air purification requirement.
Description
Technical Field
The utility model relates to the technical field of household appliances, in particular to air purifier.
Background
The air purifier is a household appliance capable of adsorbing, decomposing or converting various pollutants in indoor air, and the working principle of the air purifier is that the indoor air circularly flows and enters the air purifier through the purifying module of the air purifier, and then the air purifier is purified by the purifying module, so that various pollution sources in the indoor air are adsorbed and removed by the purifying module to output clean air, and the air purifying requirement is met. The existing air purifier mostly adopts a double-sided or single-sided air inlet mode due to process limitation, the double-sided or single-sided air inlet mode often limits the direction of indoor air entering the air purifier, a purification dead angle is formed, and the purification efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an air purifier aims at solving current air purifier and forms the technical problem that purifies dead angle and purification efficiency are low.
For realizing the above-mentioned purpose, the utility model provides an air purifier, air purifier is including purifying module and screen panel, purifying module has the wind channel, purifying module set up in the screen panel, the screen panel includes the air inlet cover and goes out the fan housing, the air inlet cover sets up purifying module's periphery, the air inlet cover different regional equipartition in position put with the fresh air inlet of wind channel intercommunication, go out the fan housing set up in purifying module's tip, go out the fan housing have with the wind channel intercommunication the exhaust vent.
Optionally, the air intake cover is provided with the air intake holes along a circumferential direction thereof.
Optionally, the purification module includes an air duct assembly and a filter, the air duct assembly has the air duct, the air outlet cover is located above the air duct assembly, the filter is located below the air duct assembly, and the air inlet hole corresponds to the filter.
Optionally, the air duct assembly includes an air duct shell, a wind wheel arranged in the air duct shell and a driving piece for driving the wind wheel to rotate, the air duct is formed in the air duct shell, an air outlet and an air inlet communicated with the air duct are respectively formed at the upper end and the lower end of the air duct shell, the filter is arranged at the air inlet, and the air outlet cover is arranged at the air outlet.
Optionally, the air duct assembly further includes an air guide shell, the air guide shell is disposed between the air outlet cover and the air duct shell, the driving member is mounted on the air guide shell, and an air guide cavity communicating the air outlet and the air outlet hole is formed in the air guide shell.
Optionally, the lower end of the air guide shell is detachably connected with the air duct shell.
Optionally, the air purifier further comprises an upper fixing ring, the upper fixing ring is detachably connected with the upper end of the air guide shell, and the air outlet cover is detachably mounted on the upper fixing ring.
Optionally, air purifier still includes bottom plate and lower fixing ring, bottom plate demountable installation be in on the lower fixing ring, the filter sets up the bottom plate with between the wind channel shell, the upper and lower both ends of air inlet cover respectively with on fixed ring reaches the lower fixing ring butt.
Optionally, air purifier still including set up the link in the air inlet cover, the upper and lower both ends of link respectively with the wind channel shell reaches lower solid fixed ring connects, the air inlet cover with the link can be dismantled and be connected.
Optionally, the number of link is a plurality of, and is a plurality of the link follows the interior circumference interval arrangement of air inlet cover, wherein one of them link is installed control panel, control panel expose in the air inlet cover.
The utility model discloses among the air purifier, the fresh air inlet has been arranged to 360 orientations of air inlet cover for 360 orientations can be followed to the room air, in the omnidirectional gets into air purifier promptly, realize air purifier's all-round air inlet, thereby make the air can not have the dead angle circulation flow, avoid purifying the dead angle, and the omnidirectional air inlet mode can make the room air in a large number and enter into air purifier fast and obtain purifying, improved purification efficiency, optimized purifying effect, satisfy the air purification requirement. Additionally, the utility model discloses among the air purifier, can change the flow direction from the air inlet cover circumference and send out from the exhaust vent that goes out the fan housing to the indoor air that gets into in the wind channel for air flow rate has made air purifier have bigger clean air discharge ability.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is an assembly view of an air cleaner according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of an air purifier according to an embodiment of the present invention;
fig. 3 is an exploded schematic view of an air purifier according to an embodiment of the present invention, with the filter and the mesh cover omitted.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
20 | |
| 10 | |
21 | |
| 11 | |
22 | |
| 12 | |
23 | |
| 121 | |
24 | |
| 1211 | |
30 | |
| 1212 | |
40 | |
| 122 | |
50 | |
| 123 | |
60 | Connecting |
| 124 | |
61 | |
| 125 | |
70 | |
| 13 | Filter |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The description of the orientations of "up" and "down" in the present invention is based on the orientation shown in fig. 1, and is only used to explain the relative position relationship between the components in the posture shown in fig. 1, and if the specific posture is changed, the directional indication is correspondingly changed accordingly.
The utility model provides an air purifier.
As shown in fig. 1 to 3, the air purifier 100 of the present embodiment includes a purifying module 10 and a mesh enclosure 20, the purifying module 10 has an air duct 11, the purifying module 10 is disposed in the mesh enclosure 20, the mesh enclosure 20 has an air outlet 22 communicated with the air duct 11, and air inlet holes 21 communicated with the air duct 11 are disposed in different areas above the mesh enclosure 20. The air purifier 100 of the present embodiment may be a desktop air purifier. Further, the screen panel 20 of this embodiment includes the air inlet cover 23 and the air outlet cover 24, and the air inlet cover 23 sets up in the periphery of purification module 10, and the air inlet 21 has been arranged to the different region in position above the air inlet cover 23, and the air outlet cover 24 sets up in the tip of purification module 10, and the air outlet cover 24 has exhaust vent 22. The net cover 20 is divided into the wind inlet cover 23 and the wind outlet cover 24, and the wind inlet holes 21 are arranged in different areas above the wind inlet cover 23.
When the air purifier 100 of the present embodiment is used, indoor air can enter the mesh enclosure 20 through the air inlet 21, and then is purified by the purifying module 10, that is, the purifying module 10 adsorbs and removes various pollution sources of the indoor air, such as PM2.5, formaldehyde, dust, smoke and dust, so that the indoor air becomes clean air, and flows to the air outlet 22 through the air duct 11, and is then conveyed to the indoor space through the air outlet 22, thereby realizing the purification of the indoor air. Because the air inlet holes 21 are uniformly distributed in different areas at different positions above the air inlet cover 23 of the embodiment, specifically, the air inlet holes 21 are distributed on the air inlet cover 23 along the circumferential direction thereof, understandably, the number of the air inlet holes 21 can be multiple, a plurality of air inlet holes 21 can be distributed in different areas at all positions on the air inlet cover 23, specifically, the air inlet holes 21 can be uniformly distributed along the circumferential direction of the air inlet cover 23, namely, the air inlet holes 21 are distributed in 360 degrees of the air inlet cover 23, so that the indoor air can flow along 360 degrees, namely, the indoor air can enter the air purifier 100 in an all-directional manner, all-directional air inlet of the air purifier 100 is realized, so that the air can circularly flow without dead angles, the dead angles can be avoided being purified, and the indoor air can enter the air purifier 100 in a large amount and quickly in an all-directional air inlet manner, the purification efficiency is improved, the purification effect is optimized, and the air purification requirement is met. In addition, in the air purifier 100 of the present embodiment, the indoor air entering the air duct 11 from the circumferential direction of the air inlet cover 23 can be sent out from the air outlet 22 of the air outlet cover 24 in a variable flow direction, which accelerates the air flow rate, so that the air purifier 100 has a greater clean air discharge capacity.
Further, the air inlet cover 23 is provided with air inlet holes 21 along its circumferential direction. Divide screen panel 20 into fan housing 23 and air-out cover 24, and the fresh air inlet 21 spreads over in the fresh air inlet 23 circumferencial direction for outdoor air can enter into wind channel 11 through the fresh air inlet 21 of fresh air inlet cover 23 along 360 directions, and carry to indoor through the exhaust vent 22 of air-out cover 24 after purifying module 10 purifies, realizes the purification to indoor air, and structural design is reasonable.
The utility model discloses in air purifier 100, the fresh air inlet 21 and the exhaust vent 22 on the air inlet cover 23 can be round hole, waist type hole, square hole and oval hole etc, the utility model discloses do not limit the shape of fresh air inlet 21 and exhaust vent 22. In order to facilitate the manufacturing and increase the throughput of indoor air, the air inlet 21 of the present embodiment may be a kidney-shaped hole, the length of the kidney-shaped hole is 4mm to 8mm, and the width of the kidney-shaped hole is 2.5mm to 5 mm. In order to facilitate air outlet, the air outlet 22 of the present embodiment may be a circular hole, and the aperture of the circular hole may be flexibly set according to actual conditions. The air inlet cover 23 of the embodiment is cylindrical, the plurality of air inlet holes 21 are arrayed along the periphery of the air inlet cover 23, the air outlet cover 24 is circular plate-shaped, and the plurality of air outlet holes 22 can be arrayed on the air outlet cover 24.
The air inlet cover 23 and the air outlet cover 24 of the air inlet cover can be sheet metal parts, the air inlet cover 23 can be made of plate metal plates provided with a plurality of air inlet holes by adopting a curling process, and the air inlet cover is simple in structure, easy and convenient to manufacture and low in cost.
The purification module 10 of this embodiment includes an air duct assembly 12 and a filter 13, the air duct assembly 12 has an air duct 11, an air outlet cover 24 is located above the air duct assembly 12, the filter 13 is located below the air duct assembly 12, and the air inlet holes 21 are disposed corresponding to the filter 13. The filter 13 of the present embodiment has a hollow cylindrical shape, and the inner cavity of the filter 13 is communicable with the air duct 11. Indoor air entering the mesh enclosure 20 from the air inlet 21 can flow into the cavity of the filter 13 through the filter 13, and in the process that the indoor air passes through the filter 13, the filter 13 can adsorb and remove pollution sources such as PM2.5, formaldehyde, dust and smoke dust in the indoor air, so that the indoor air is changed into clean air, and then the clean air is sent to the air outlet 22 through the air duct 11 and flows upwards along the air duct 11 and is conveyed to the indoor from the air outlet 22. And, the air inlet holes 21 are arranged corresponding to the filter 13, so that the indoor air entering the mesh enclosure 20 from the air inlet holes 21 can directly and rapidly pass through the filter 13.
Further, the air duct assembly 12 includes an air duct housing 121, a wind wheel 122 disposed in the air duct housing 121, and a driving member 123 for driving the wind wheel 122 to rotate, an air duct 11 is formed in the air duct housing 121, an air outlet 1212 and an air inlet 1211 are respectively disposed at upper and lower ends of the air duct housing 121, the air outlet 1212 and the air inlet 1211 are communicated with the air duct 11, the filter 13 is disposed at the air inlet 1211, and the air outlet hood 24 is disposed at the air outlet 1212.
Specifically, the driving element 123 of the present embodiment may adopt a motor in the prior art, the wind wheel 122 may adopt a centrifugal wind wheel 122 in the prior art, and the motor may drive the wind wheel 122 to rotate, so that negative pressure is formed in the wind channel 11, and indoor air is sucked into the wind channel 11. The air duct shell 121 covers the wind wheel 122 and the motor, and the air duct 11 is formed in the air duct shell 121, and it can be understood that the motor and the wind wheel 122 are located in the air duct 11.
When the air purifier 100 is in use, the motor is started, the motor drives the wind wheel 122 to rotate, indoor air is continuously sucked into the mesh enclosure 20 through the air inlet 21, and is filtered into clean air through the filter 13, and then enters the air duct 11 from the air inlet 1211, and then flows upwards along the air duct 11 and is conveyed to the indoor space from the air outlet 1212 and the air outlet 22, so that a circulating purification process is formed, and the air purification requirement is met.
Furthermore, the air duct assembly 12 further includes an air guiding shell 124, the air guiding shell 124 is disposed between the air outlet cover 24 and the air duct shell 121, the driving element 123 is mounted on the air guiding shell 124, and an air guiding cavity 125 communicating with the air outlet 1212 and the air outlet 22 is formed in the air guiding shell 124. Specifically, the air guiding casing 124 can be used as a motor mounting seat to mount the motor. The air guiding shell 124 can guide the air in the air duct 11, so that the purified air is guided along the air guiding cavity 125 and then is discharged from the air outlet 22.
In order to facilitate the detachment and installation, the lower end of the air guide casing 124 of this embodiment is detachably connected to the air duct casing 121. In an embodiment, the air guiding shell 124 and the air duct shell 121 can be connected by a buckle, which is simple and convenient, and improves the convenience of disassembly and assembly.
The air purifier 100 of the embodiment further comprises an upper fixing ring 30, the upper fixing ring 30 is detachably connected with the upper end of the air guide shell 124, and the air outlet cover 24 is detachably mounted on the upper fixing ring 30. Further, air purifier 100 still includes bottom plate 40 and lower fixed ring 50, and bottom plate 40 demountable installation is on lower fixed ring 50, and filter 13 sets up between bottom plate 40 and wind channel shell 121, and the upper and lower both ends of air inlet cover 23 respectively with last fixed ring 30 and the butt of lower fixed ring 50.
As shown in fig. 1 to 3, the upper fixing ring 30 and the lower fixing ring 50 are provided to facilitate the installation of the air inlet cover 23 and the air outlet cover 24. In addition, the bottom plate 40 is detachably mounted on the lower fixing ring 50, when the filter 13 needs to be replaced, the bottom plate 40 can be detached from the lower fixing ring 50, the old filter 13 is taken out from the lower portion, the new filter 13 is placed into the air inlet cover 23 from the lower portion, finally, the bottom plate 40 is mounted on the lower fixing ring 50 again, the new filter 13 is supported by the bottom plate 40, the replacement process of the filter 13 is achieved, and the replacement process is simple, convenient and easy to operate.
In this embodiment, the air purifier 100 further includes a connecting frame 60 disposed in the air inlet cover 23, the upper and lower ends of the connecting frame 60 are respectively connected to the air duct shell 121 and the lower fixing ring 50, and the air inlet cover 23 is detachably connected to the connecting frame 60. The link 60 is located the air inlet cover 23, does not influence the outward appearance aesthetic property of air purifier 100, and the upper and lower both ends of link 60 are connected with wind channel shell 121 and lower fixed ring 50 respectively, realizes the assembly of lower fixed ring 50 and wind channel shell 121, and the setting of link 60 has improved the intensity of lower fixed ring 50 and wind channel shell 121. In addition, the air inlet cover 23 is detachably connected with the connecting frame 60, so that the air inlet cover 23 is convenient to disassemble and assemble, the strength of the air inlet cover 23 is improved, and the air inlet cover 23 is protected from deformation.
Further, the number of the connection frames 60 is plural, the plural connection frames 60 are arranged at intervals along the inner circumference of the air inlet cover 23, one of the connection frames 60 is provided with the control panel 70, and the control panel 70 is exposed out of the air inlet cover 23. As shown in fig. 2 and 3, the number of the connecting frames 60 is four, and the four connecting frames 60 are uniformly arranged on the inner periphery of the air inlet cover 23 at intervals, so that the stability of assembling the air inlet cover 23 and the connecting frames 60 is improved. One of the connection frames 60 is provided with a control panel 70, and the control panel 70 is exposed out of the air inlet cover 23, so that the control panel 70 is visible and is convenient for a user to operate. It is understood that the control panel 70 has control buttons, which can be electrically connected to the motor to control the start and stop of the motor, and indicator lights, which can display the current operating status of the air purifier 100. The control panel 70 and its control buttons and indicator lights may be implemented by any conventional technique, and are not described in detail herein. In addition, the connecting frame 60 of this embodiment can also be provided with the threading hole 61, so as to facilitate the installation and routing of the wiring harness in the air purifier 100.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. The utility model provides an air purifier, its characterized in that, air purifier is including purifying module and screen panel, purifying module has the wind channel, purifying module set up in the screen panel, the screen panel includes air inlet cover and play wind cover, the air inlet cover sets up purify the periphery of module, the air inlet cover different regional equipartitions in position put with the fresh air inlet of wind channel intercommunication, go out the wind cover set up in purify the tip of module, go out the wind cover have with the exhaust vent of wind channel intercommunication.
2. The air cleaner of claim 1, wherein the intake hood has the intake openings arranged along a circumferential direction thereof.
3. The air purifier of claim 2, wherein the purification module comprises an air duct assembly and a filter, the air duct assembly is provided with the air duct, the air outlet cover is positioned above the air duct assembly, the filter is positioned below the air duct assembly, and the air inlet hole is arranged corresponding to the filter.
4. The air purifier of claim 3, wherein the air duct assembly comprises an air duct housing, a wind wheel disposed in the air duct housing, and a driving member for driving the wind wheel to rotate, the air duct is formed in the air duct housing, an air outlet and an air inlet communicated with the air duct are respectively formed at the upper end and the lower end of the air duct housing, the filter is disposed at the air inlet, and the air outlet cover is disposed at the air outlet.
5. The air purifier of claim 4, wherein the air duct assembly further comprises an air guiding shell, the air guiding shell is disposed between the air outlet cover and the air duct shell, the driving member is mounted on the air guiding shell, and an air guiding cavity communicating the air outlet and the air outlet hole is formed in the air guiding shell.
6. The air purifier of claim 5, wherein the lower end of the air guide shell is removably connected to the air duct shell.
7. The air purifier of claim 5, further comprising an upper fixing ring, wherein the upper fixing ring is detachably connected to the upper end of the air guide casing, and the air outlet cover is detachably mounted on the upper fixing ring.
8. The air purifier of claim 7, further comprising a bottom plate and a lower fixing ring, wherein the bottom plate is detachably mounted on the lower fixing ring, the filter is disposed between the bottom plate and the air duct shell, and upper and lower ends of the air inlet cover are respectively abutted to the upper fixing ring and the lower fixing ring.
9. The air purifier of claim 8, further comprising a connecting frame disposed in the air inlet cover, wherein the upper end and the lower end of the connecting frame are respectively connected to the air duct shell and the lower fixing ring, and the air inlet cover is detachably connected to the connecting frame.
10. The air cleaner of claim 9, wherein the number of the connection frames is plural, the plural connection frames are arranged at intervals along an inner circumference of the air inlet cover, one of the connection frames is provided with a control panel, and the control panel is exposed to the air inlet cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023347236.2U CN214307474U (en) | 2020-12-31 | 2020-12-31 | Air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023347236.2U CN214307474U (en) | 2020-12-31 | 2020-12-31 | Air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214307474U true CN214307474U (en) | 2021-09-28 |
Family
ID=77823531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023347236.2U Expired - Fee Related CN214307474U (en) | 2020-12-31 | 2020-12-31 | Air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214307474U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484685A (en) * | 2021-12-30 | 2022-05-13 | 卡富环球有限公司 | Air-out concatenation unit and concatenation formula air purifier |
| CN115597151A (en) * | 2022-10-24 | 2023-01-13 | 珠海格力电器股份有限公司（Cn） | Humidifier |
-
2020
- 2020-12-31 CN CN202023347236.2U patent/CN214307474U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114484685A (en) * | 2021-12-30 | 2022-05-13 | 卡富环球有限公司 | Air-out concatenation unit and concatenation formula air purifier |
| CN115597151A (en) * | 2022-10-24 | 2023-01-13 | 珠海格力电器股份有限公司（Cn） | Humidifier |
| CN115597151B (en) * | 2022-10-24 | 2024-05-28 | 珠海格力电器股份有限公司 | Humidifier |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |