CN211400129U - One-way flow fresh air purification and ventilation device - Google Patents
One-way flow fresh air purification and ventilation device Download PDFInfo
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- CN211400129U CN211400129U CN201922277504.9U CN201922277504U CN211400129U CN 211400129 U CN211400129 U CN 211400129U CN 201922277504 U CN201922277504 U CN 201922277504U CN 211400129 U CN211400129 U CN 211400129U
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Abstract
The utility model discloses a unidirectional flow fresh air purification and ventilation device, which comprises a shell, wherein the shell is provided with a hollow inner cavity, and an indoor air return inlet, an outdoor fresh air inlet and an indoor air supply outlet are arranged on the shell; the filter is arranged in the shell and divides the inner cavity of the shell into a first inner cavity and a second inner cavity which are communicated with each other; the indoor air supply outlet is communicated with the first inner cavity, and the indoor air return inlet and the outdoor fresh air inlet are respectively communicated with the second inner cavity; the air supply fan is arranged in the first inner cavity of the shell, and an air outlet of the air supply fan is communicated with indoor air through an indoor air supply outlet of the shell; the indoor return air inlet is communicated with indoor air, and the outdoor fresh air inlet is communicated with outdoor air; and the air valve assembly is arranged in the second inner cavity and is used for controlling the opening and closing of the indoor air return opening and/or the outdoor fresh air opening. Above-mentioned uniflow new trend purifies breather can select different modes to carry out air purification according to the environment of difference, has improved indoor air's purification quality, has guaranteed indoor air's comfort level.
Description
Technical Field
The utility model relates to a new trend purifies the air regenerating device field, especially relates to a uniflow new trend purifies air regenerating device.
Background
With the development of society, the air pollution condition is more and more serious. With the continuous improvement of living standard, people have higher and higher requirements on indoor air quality, so that the air purification device is widely applied to various occasions.
The existing air purifier can purify and treat indoor air when used indoors, so that the quality of the indoor air is improved, and the health of users is ensured; however, since the air purifier removes indoor harmful gases through indoor closed circulation, the air purification quality is low after long-time operation, and oxygen deficiency is easily caused. Therefore, the fresh air purification and ventilation equipment is preferably installed, and purified fresh air is rapidly introduced into the room, so that the quality of indoor air can be guaranteed, and the problem of indoor oxygen deficiency can be solved.
The common fresh air purifying and ventilating device in the market is a bidirectional flow fresh air purifying and ventilating device. The bidirectional flow fresh air purification and ventilation device can discharge indoor dirty air outdoors while introducing fresh air indoors, is generally provided with a heat exchanger component, can recover indoor air heat, has small influence on indoor temperature, and is environment-friendly; however, the cost of the bidirectional flow fresh air purifying and ventilating device with the heat exchanger component is higher, and the unidirectional flow fresh air purifying and ventilating device with the lower price is an accepted choice for the user group with the lower price bearing capacity.
The unidirectional flow fresh air purification and ventilation device only introduces fresh air indoors and does not have an air exhaust function, and the indoor air is kept in a positive pressure environment for a long time by continuously feeding purified air into the indoor space, so that indoor air is forced to be discharged outdoors through other ways, and the purified air is continuously fed into the indoor space. For example, chinese utility model patents CN208983544U and CN209042644U disclose a single-flow fresh air purifier. However, because the unidirectional flow fresh air purification and ventilation device has no heat recovery function, the existing unidirectional flow fresh air purification and ventilation device is limited to introduce fresh air from the outdoor, and for the autumn and winter with lower temperature, if the unidirectional flow fresh air purification and ventilation device is continuously used for a long time, the indoor temperature is reduced too fast, and the indoor comfort level is affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a uniflow new trend purifies breather is provided.
In order to realize the technical purpose, the utility model adopts the following technical scheme:
a uniflow new trend purifies breather includes:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a hollow inner cavity, and an indoor air return opening, an outdoor fresh air opening and an indoor air supply opening are formed in the shell;
the filter is arranged in the shell and divides the inner cavity of the shell into a first inner cavity and a second inner cavity which are mutually communicated, the indoor air supply outlet is communicated with the first inner cavity, and the indoor air return inlet and the outdoor fresh air inlet are both communicated with the second inner cavity;
the air supply fan is arranged in the first inner cavity of the shell, and an air outlet of the air supply fan is communicated with indoor air through an indoor air supply outlet of the shell;
the indoor air return opening is communicated with indoor air, and the outdoor fresh air opening is communicated with outdoor air;
and the air valve assembly is arranged in the second inner cavity of the shell and is used for controlling the opening and closing of the indoor air return opening and/or the outdoor fresh air opening.
In a preferred embodiment provided by the present invention, a first sub-chamber and a second sub-chamber are formed in the second inner cavity by a partition plate assembly, and the first sub-chamber and the second sub-chamber are separated by a common partition plate;
the first sub-chamber is communicated with the indoor return air inlet, and the second sub-chamber is communicated with the outdoor fresh air inlet; a first opening is formed in the position, adjacent to the shared partition plate, of the first sub-chamber; a second opening is formed in the position, adjacent to the shared partition plate, of the second sub-chamber;
the air valve assembly comprises an air valve plate, a connecting rod and a driving motor, and the driving motor drives the air valve plate to rotate between a first position and a second position through the connecting rod;
when the air valve plate is at a first position, the opening of the first sub-chamber is closed, the opening of the second sub-chamber is opened, and the second inner cavity is communicated with outdoor air through the second sub-chamber;
when the air valve plate is at the second position, the opening of the second sub-chamber is closed, the opening of the first sub-chamber is opened, and the second inner cavity is communicated with indoor air through the first sub-chamber;
when the wind valve plate is located between the first position and the second position, the openings of the first sub-chamber and the second sub-chamber are both opened, and the second inner cavity is communicated with the outdoor air through the second sub-chamber while the second inner cavity is communicated with the indoor air through the first sub-chamber.
Preferably, the air inlet ratio of indoor air and outdoor air is controlled by controlling the position of the air valve plate between the first position and the second position.
Preferably, the air valve plate is arranged between the two openings, the driving motor is arranged on one side of the shared baffle, and the air valve plate is connected with the driving motor through the connecting rod.
Preferably, the driving motor is arranged in the first sub-chamber, and the indoor air return opening is arranged on a side wall plate opposite to the common partition plate; the outdoor fresh air inlet is arranged on a side wall plate which is vertically intersected with the common partition plate.
In another embodiment provided by the present invention, the air valve assembly is a fresh air valve, and the fresh air valve is connected to the inner side of the outdoor fresh air port and is used for controlling the opening and closing of the outdoor fresh air port;
the second inner cavity is communicated with the indoor air through the indoor air return opening all the time.
In another embodiment provided by the present invention, the air valve assembly is a return air valve, and the return air valve is connected to an inner side of the indoor return air inlet for controlling opening and closing of the indoor return air inlet;
the second inner cavity is communicated with outdoor air through the outdoor fresh air inlet all the time.
In another embodiment provided by the present invention, the air valve assembly comprises a fresh air valve and a return air valve;
the fresh air valve is connected with the inner side of the outdoor fresh air port and used for controlling the opening and closing of the outdoor fresh air port;
and the return air valve is connected with the inner side of the indoor return air inlet and is used for controlling the opening and closing of the indoor return air inlet.
Preferably, the filter comprises a first filter and a second filter, and the first filter is positioned on one side of the second filter far away from the air supply fan.
Preferably, the first filter is a primary filter and the second filter is a high efficiency filter.
Compared with the prior art, the utility model discloses technical scheme's beneficial effect as follows:
the utility model discloses technical scheme provides a uniflow new trend purifies breather, through outdoor fresh air inlet and the outdoor air intercommunication on the casing to through indoor return air inlet and indoor supply-air outlet and the indoor air intercommunication on the casing. Make this uniflow new trend purification breather can select to carry out purification treatment or send into the fresh air of purifying to indoor introduction through the new trend of purifying or to indoor the mixed gas of indoor return air and outdoor new trend of purifying under the control of blast gate subassembly to can select different modes according to the environment of difference and carry out air purification. Above-mentioned uniflow new trend purifies breather has improved the purification quality of room air, has guaranteed the comfort level of room air, is the air purification equipment that the cost is lower and energy-concerving and environment-protective.
Drawings
Fig. 1 is a schematic structural view of a unidirectional flow fresh air purifying and ventilating device provided in an embodiment of the present invention;
fig. 2 is a schematic structural view of another unidirectional flow fresh air purifying and ventilating device according to an embodiment of the present invention;
fig. 3 is a schematic structural view of another unidirectional flow fresh air purifying and ventilating device according to an embodiment of the present invention.
In the drawings, each reference numeral denotes:
1. a housing; 11. an inner cavity; 12. an indoor return air inlet; 13. an outdoor fresh air port; 14. an indoor air supply outlet; 111. a first lumen; 112. a second lumen; 121. a first sub-chamber; 122 a second subchamber; 15. a common separator plate;
2. a filter; 21. a first filter; 22. a second filter;
3. an air supply fan;
4. an air valve assembly; 401. a damper plate; 402. a connecting rod; 403. a drive motor; 41. a fresh air valve; 42. a return air valve;
5. and a controller.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
referring to fig. 1, a unidirectional flow fresh air purifying and ventilating device according to an embodiment of the present invention includes a housing 1, a filter 2, an air supply fan 3, and an air valve assembly 4.
The shell 1 is provided with a hollow inner cavity 11, and an indoor air return opening 12, an outdoor fresh air opening 13 and an indoor air supply opening 14 are arranged on the shell. The filter 2 is disposed in the casing 1 and divides the inner cavity 11 of the casing 1 into a first inner cavity 111 and a second inner cavity 112 which are communicated with each other, the indoor air supply outlet 14 is communicated with the first inner cavity 111, and the indoor air return inlet 12 and the outdoor fresh air inlet 13 are both communicated with the second inner cavity 112.
The air supply fan 3 is disposed in the first inner cavity 111 of the casing 1, and an air outlet of the air supply fan 3 is communicated with indoor air through an indoor air supply outlet 14 of the casing 1. The indoor return air inlet 12 is communicated with indoor air, and the outdoor fresh air inlet 13 is communicated with outdoor air; the air valve assembly 4 is installed in the second inner cavity 112 in the casing 1 and is used for controlling the opening and closing of the indoor air return opening 12 and/or the outdoor fresh air opening 13.
In this embodiment, when the outdoor fresh air port 13 is opened, the air supply fan 3 can draw outside fresh air into the second inner cavity 112 through the outdoor fresh air port 13, and then the drawn outside fresh air is filtered by the filter 2 and sent into the room; under the condition that the indoor air return opening 12 is opened, the air supply fan 3 can also draw the indoor turbid air into the second inner cavity 112 by using the indoor air return opening 12, and then the drawn indoor turbid air is filtered by the filter 2 and then is sent into the room again. The air valve component 4 controls the opening and closing of the indoor air return opening 12 and/or the outdoor fresh air opening 13, so that the whole device can select different modes to purify air according to different environments, and the purification quality of indoor air is improved.
Preferably, in the above embodiment, the filter 2 includes the first filter 21 and the second filter 22, and the first filter 21 is located on a side of the second filter 22 away from the supply fan 3. The air purification effect is improved through a two-stage filtration mode.
Preferably, in the above embodiment, the first filter 21 is a primary filter for filtering large particles such as dust and lint; the resulting second filter 22 is a high-grade filter for filtering fine particulates (e.g., PM2.5 particulate matter) from the air. Indoor turbid air or outdoor fresh air is purified by sequentially passing through the first filter 21 and the second filter 22, and the purification quality of the air can be improved by a two-stage filtration mode.
Preferably, in the above embodiment, the unidirectional flow fresh air purifying and ventilating device further includes a controller 5, and the controller 5 is electrically connected to the air supply fan 3 and is used for controlling the opening and closing of the air supply fan 3. The controller 5 is also electrically connected to a driving motor in the air valve assembly 4 for controlling the opening and closing of the air valve assembly 4.
Example two:
in the first embodiment, in particular, a first sub-chamber 121 and a second sub-chamber 122 are formed in the second inner cavity 112 by a partition plate assembly, and the first sub-chamber 121 and the second sub-chamber 122 are separated by the common partition plate 15. Wherein, the first sub-chamber 121 is communicated with the indoor return air inlet 12, and the second sub-chamber 122 is communicated with the outdoor fresh air inlet 13; a first opening is formed in the first sub-chamber 121 at a position adjacent to the common partition 15, and the first opening is disposed on the inclined partition 16 adjacent to the common partition 15 in fig. 1; a second opening is opened in the second sub-chamber 122 at a position adjacent to the common partition 15, and the second opening is provided in the inclined partition 17 adjacent to the common partition 15 in fig. 1.
The air valve assembly 4 comprises an air valve plate 401, a connecting rod 402 and a driving motor 403, wherein the driving motor 403 drives the air valve plate 401 to rotate between a first position and a second position through the connecting rod 402. When the air valve plate 401 is in different positions, the whole device is in different working modes. Driving motor
Specifically, when the air valve plate 401 rotates to the first position, the opening (i.e., the first opening) of the first sub-chamber 121 is closed, and the first opening is blocked by the air valve plate 401; the opening of the second sub-chamber 122 (i.e., the second opening) is opened and the second inner chamber 112 is in communication with the outdoor air through the second sub-chamber 122, at which time the entire apparatus is in a fresh air purification mode. When the air valve plate 401 rotates to the second position, the opening (i.e., the second opening) of the second sub-chamber 122 is closed, and the second opening is blocked by the air valve plate 401; the opening of the first sub-chamber 121 (i.e., the first opening) is opened and the second inner chamber 112 communicates with the indoor air through the first sub-chamber 121, and at this time, the entire apparatus is in the indoor cleaning mode. When the air valve plate 401 is located between the first position and the second position, the openings of the first sub-chamber 121 and the second sub-chamber 122 are both opened, and the second inner chamber 112 is communicated with the indoor air through the first sub-chamber 121, and simultaneously, the second inner chamber 112 is also communicated with the outdoor air through the second sub-chamber 122, at this time, the whole device is in the mixed air purification mode.
In the above embodiment, when the whole device is in the mixed air purification mode, the air valve plate 401 can be controlled to be located between the first position and the second position, so as to achieve the purpose of controlling the air intake ratio of the indoor air and the outdoor air. The position through changing wind valve plate 401 makes the user can select the air inlet proportion of indoor air and outdoor air as required to satisfy different crowds' user demand.
In the above embodiment, it is preferable that the air flap 401 is disposed at a position between the two openings, the driving motor 403 is disposed at one side of the common barrier 15, and the air flap 401 is connected to the driving motor 403 by the link 402. The driving motor 403 is arranged in the first sub-chamber 121, and the indoor air return opening 12 is arranged on a side wall plate opposite to the common partition plate 15; the outdoor fresh air opening 13 is provided in a side wall plate perpendicularly intersecting the common partition 15. Through reasonable structural arrangement, the attractiveness of the whole device can be improved, interference of all parts in the using process can be avoided, and the whole device can run more smoothly.
Example three:
on the basis of the first embodiment, referring to fig. 2, the air valve component is a fresh air valve 41, and the fresh air valve 41 is connected with the inner side of the outdoor fresh air port 13 and used for controlling the opening and closing of the outdoor fresh air port 13; the second inner cavity 112 is always communicated with the indoor air through the indoor air return opening 12.
In the above embodiment, the fresh air damper 41 controls the opening and closing of the outdoor fresh air port 13 to switch between the indoor cleaning mode and the mixed air cleaning mode. Specifically, when the fresh air valve 41 is closed, at this time, the outdoor fresh air cannot enter the second inner cavity 112 through the outdoor fresh air inlet 13, and the indoor return air inlet 12 is always communicated with the indoor air, at this time, the whole device is in an indoor purification mode; when the fresh air valve 41 is opened, at this time, the fresh air outside can enter the second inner cavity 112 through the fresh air opening 13, and meanwhile, the indoor air return opening 12 is always communicated with the indoor air, so that the whole device is in a mixed air purification mode.
When the indoor air conditioner is used specifically, when the quality of outdoor air is poor or in cold winter, the fresh air valve 41 is closed, under the condition of closing doors and windows, indoor dirty air can pass through the first filter 21 and the second filter 22, and the purified air is sent into the indoor space again through the air supply fan 3. When the outdoor air quality is good and the temperature is low, the fresh air damper 41 is opened, the outdoor cold air is mixed with the indoor warm air, the purified mixed air is sent into the room through the air supply fan 3 after passing through the first filter 21 and the second filter 22, at the moment, the fresh air is introduced into the room, and the temperature of the indoor air is not too low, so that the normal life of people is influenced.
Example four:
on the basis of the first embodiment, referring to fig. 3, the air valve assembly is a return air valve 42, and the return air valve 42 is connected with the inner side of the indoor return air inlet 12 and used for controlling the opening and closing of the indoor return air inlet 12; the second inner cavity 112 is always communicated with the outdoor air through the outdoor fresh air opening 13.
In the above embodiment, the return air valve 42 controls the opening and closing of the indoor return air inlet 12 to switch between the fresh air purification mode and the mixed air purification mode. Specifically, when the return air valve 42 is closed, the indoor turbid air cannot enter the second inner cavity 112 through the indoor return air inlet 12, and the outdoor fresh air inlet 13 is always communicated with the outdoor air, at this time, the whole device is in a fresh air purification mode, and the indoor turbid air cannot pollute the fresh air sucked into the second inner cavity 112; when the return air valve 42 is opened, the turbid indoor fresh air can enter the second inner cavity 112 through the indoor return air inlet 12, at the moment, the outdoor fresh air inlet 13 is always communicated with the outdoor air, the fresh air and the return air are mixed and then filtered and purified at the same time, and then the mixture is sent into the room, and the whole device is in a mixed air purification mode.
When the air conditioner is used specifically, when the outdoor air quality is good and the indoor air quality is poor, the return air valve 42 is closed, so that the indoor dirty air can be effectively prevented from polluting outdoor clean air to be sent into a room, the outdoor clean air sequentially passes through the first filter 21 and the second filter 22, and the purified air is sent into the room through the air supply fan 3; when the outdoor air quality is good and the temperature is low, the return air valve is opened, the cold air is mixed with the indoor warm air, the purified warm air is sent into the room through the air supply fan 3 through the first filter 21 and the second filter 22, and the indoor air temperature is not too low, so that the normal life of people is not influenced.
Example five:
on the basis of the first embodiment, specifically, the air valve assembly 4 includes a fresh air valve 41 and a return air valve 42.
The fresh air valve 41 is connected with the inner side of the outdoor fresh air port 13 and is used for controlling the opening and closing of the outdoor fresh air port 13; the return air valve 42 is connected to the inside of the indoor return air inlet 12, and is used for controlling the opening and closing of the indoor return air inlet 12.
The switching of different modes of the whole device is realized by controlling the opening and closing of the fresh air valve 41 and/or the return air valve 42, the specific working principle is the same as that of the third embodiment and the fourth embodiment, and the detailed description is omitted here.
It is right above that the utility model provides a uniflow new trend purifies breather carries out detailed explanation. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, without departing from the spirit of the present invention, and it is intended to constitute a violation of the patent rights of the present invention and to bear the relevant legal responsibility.
Claims (10)
1. The utility model provides a uniflow new trend purifies breather which characterized in that: the method comprises the following steps:
the air conditioner comprises a shell, a fan and a fan, wherein the shell is provided with a hollow inner cavity, and an indoor air return opening, an outdoor fresh air opening and an indoor air supply opening are formed in the shell;
the filter is arranged in the shell and divides the inner cavity of the shell into a first inner cavity and a second inner cavity which are mutually communicated, the indoor air supply outlet is communicated with the first inner cavity, and the indoor air return inlet and the outdoor fresh air inlet are both communicated with the second inner cavity;
the air supply fan is arranged in the first inner cavity of the shell, and an air outlet of the air supply fan is communicated with indoor air through an indoor air supply outlet of the shell;
the indoor air return opening is communicated with indoor air, and the outdoor fresh air opening is communicated with outdoor air;
and the air valve assembly is arranged in the second inner cavity and is used for controlling the opening and closing of the indoor air return opening and/or the outdoor fresh air opening.
2. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 1, wherein:
a first sub-chamber and a second sub-chamber are formed in the second inner cavity through a partition plate assembly, and the first sub-chamber and the second sub-chamber are separated by a common partition plate;
the first sub-chamber is communicated with the indoor return air inlet, and the second sub-chamber is communicated with the outdoor fresh air inlet; a first opening is formed in the position, adjacent to the shared partition plate, of the first sub-chamber; a second opening is formed in the position, adjacent to the shared partition plate, of the second sub-chamber;
the air valve assembly comprises an air valve plate, a connecting rod and a driving motor, and the driving motor drives the air valve plate to rotate between a first position and a second position through the connecting rod;
when the air valve plate is at a first position, the opening of the first sub-chamber is closed, the opening of the second sub-chamber is opened, and the second inner cavity is communicated with outdoor air through the second sub-chamber;
when the air valve plate is at the second position, the opening of the second sub-chamber is closed, the opening of the first sub-chamber is opened, and the second inner cavity is communicated with indoor air through the first sub-chamber;
when the wind valve plate is located between the first position and the second position, the openings of the first sub-chamber and the second sub-chamber are both opened, and the second inner cavity is communicated with the outdoor air through the second sub-chamber while the second inner cavity is communicated with the indoor air through the first sub-chamber.
3. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 2, wherein:
and the air inlet proportion of indoor air and outdoor air is controlled by controlling the position of the air valve plate between the first position and the second position.
4. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 2, wherein:
the wind valve plate is arranged between the two openings, the driving motor is arranged on one side of the shared baffle, and the wind valve plate is connected with the driving motor through the connecting rod.
5. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 4, wherein:
the driving motor is arranged in the first sub-chamber, and the indoor air return inlet is arranged on a side wall plate which is opposite to the common partition plate; the outdoor fresh air inlet is arranged on a side wall plate which is vertically intersected with the common partition plate.
6. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 1, wherein:
the air valve component is a fresh air valve, and the fresh air valve is connected with the inner side of the outdoor fresh air port and used for controlling the opening and closing of the outdoor fresh air port;
the second inner cavity is communicated with the indoor air through the indoor air return opening all the time.
7. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 1, wherein:
the air valve component is a return air valve, and the return air valve is connected with the inner side of the indoor return air inlet and used for controlling the opening and closing of the indoor return air inlet;
the second inner cavity is communicated with outdoor air through the outdoor fresh air inlet all the time.
8. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 1, wherein:
the air valve assembly comprises a fresh air valve and a return air valve;
the fresh air valve is connected with the inner side of the outdoor fresh air port and used for controlling the opening and closing of the outdoor fresh air port;
and the return air valve is connected with the inner side of the indoor return air inlet and is used for controlling the opening and closing of the indoor return air inlet.
9. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 1, wherein:
the filter comprises a first filter and a second filter, and the first filter is positioned on one side of the second filter, which is far away from the air supply fan.
10. The unidirectional flow fresh air purifying and ventilating device as claimed in claim 9, wherein:
the first filter is a primary filter and the second filter is a high efficiency filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277504.9U CN211400129U (en) | 2019-12-18 | 2019-12-18 | One-way flow fresh air purification and ventilation device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922277504.9U CN211400129U (en) | 2019-12-18 | 2019-12-18 | One-way flow fresh air purification and ventilation device |
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| CN211400129U true CN211400129U (en) | 2020-09-01 |
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| CN201922277504.9U Active CN211400129U (en) | 2019-12-18 | 2019-12-18 | One-way flow fresh air purification and ventilation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357801A (en) * | 2021-05-17 | 2021-09-07 | 青岛海尔空调器有限总公司 | Air inlet structure, fresh air device and air conditioner |
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2019
- 2019-12-18 CN CN201922277504.9U patent/CN211400129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357801A (en) * | 2021-05-17 | 2021-09-07 | 青岛海尔空调器有限总公司 | Air inlet structure, fresh air device and air conditioner |
| CN113357801B (en) * | 2021-05-17 | 2022-07-15 | 青岛海尔空调器有限总公司 | Air inlet structure, fresh air device and air conditioner |
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