CN214841215U - Air conditioner indoor unit and fresh air module thereof - Google Patents
Air conditioner indoor unit and fresh air module thereof Download PDFInfo
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- CN214841215U CN214841215U CN202120370011.4U CN202120370011U CN214841215U CN 214841215 U CN214841215 U CN 214841215U CN 202120370011 U CN202120370011 U CN 202120370011U CN 214841215 U CN214841215 U CN 214841215U
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- air
- new trend
- fresh air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
- F24F1/0033—Indoor units, e.g. fan coil units characterised by fans having two or more fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
- F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The utility model relates to an air conditioning technology field aims at solving the problem that current new trend module use cost is high, specifically provides an indoor set of air conditioning and new trend module thereof, and the new trend module includes new trend wind channel and return air wind channel, is provided with the new trend fan that is used for promoting the air current circulation in the new trend wind channel, is provided with the return air fan that is used for promoting the air current circulation in the return air wind channel, and the new trend wind channel includes: a first flow passage in which a first filter member is disposed; and a second flow passage provided in parallel with the first flow passage and provided with a second filter member, wherein the first filter member and the second filter member have different filter accuracies; the new trend wind channel includes the new trend entry, and the new trend wind channel disposes the air door at the new trend entry, and the air door can be with first runner and/or second runner shutoff. The utility model provides a new trend module of air conditioner can prolong each filtering component's life, reduces filtering component's change frequency, and then reduces use cost, can also improve the efficiency of taking a breath.
Description
Technical Field
The utility model relates to an air conditioning technology field, concretely relates to machine in air conditioning and new trend module thereof.
Background
The fresh air system has the main function of introducing outdoor fresh air into the room so as to improve the freshness of the indoor air and improve the quality of the indoor air. The fresh air system is usually arranged independently of the air conditioning system, and part of the fresh air system can also be integrated on the air conditioner and exists as a functional module of the air conditioner.
The existing air conditioner with the fresh air module only has a single air duct, and only can input the purified outdoor air into the room, so that the fresh air module has the following three problems during operation: the targeted filtering treatment can not be carried out according to the outdoor air quality condition, so that the filter screen is frequently replaced, and the use cost is high; in winter, the outdoor temperature is low, and the indoor temperature is reduced in the ventilation process, so that the user experience is influenced; the ventilation process easily causes indoor and outdoor pressure difference, so that the door and the window are difficult to open and close.
Accordingly, there is a need in the art for a new air conditioner indoor unit and a new air supply module thereof to solve the above problems.
SUMMERY OF THE UTILITY MODEL
In order to solve one of the above-mentioned problem among the prior art at least, the utility model discloses an aspect provides a new trend module of machine in air conditioning, new trend module includes new trend wind channel and return air wind channel, be provided with the new trend fan that is used for promoting the air current circulation in the new trend wind channel, be provided with the return air fan that is used for promoting the air current circulation in the return air wind channel, new trend wind channel includes: a first flow passage in which a first filter member is disposed; and a second flow passage provided in parallel with the first flow passage, a second filter member being provided in the second flow passage, wherein the first filter member and the second filter member have different filter accuracies; the new trend wind channel includes the new trend entry, the new trend wind channel is in the new trend entry disposes the air door, the air door can with first runner and/or the shutoff of second runner.
The utility model provides a new trend module of air conditioner is through setting up parallel first runner and second runner in new trend wind channel to set up different filter fineness's filtering component in two runners, admit air through the higher runner of filter fineness when outdoor air quality is relatively poor, choose to admit air through the runner that filter fineness is low when outdoor air quality is better, thereby can prolong each filtering component's life, reduce filtering component's change frequency, and then reduce use cost. In addition, through setting up the return air wind channel, when leading into indoor with outdoor new trend, can discharge indoor foul air to outdoor simultaneously, both do benefit to and promote the efficiency of taking a breath, help maintaining indoor outer atmospheric pressure balanced again, solve the problem of the door and window switching difficulty that causes because of the atmospheric pressure difference to and the big problem of the noise of taking a breath that causes because of the atmospheric pressure difference.
It can be understood that there are various ways to arrange the dampers, for example, independently controllable dampers may be respectively arranged at the fresh air inlets of the first flow channel and the second flow channel; a swing damper having a plurality of operating positions may be provided, and the swing damper may selectively block the first flow passage or the second flow passage by a swing mechanism, such as a structure in which a swing plate is connected to a rotating shaft, or the like.
It is also understood that the first filter member may be a high efficiency filter member, a medium efficiency filter member, a coarse efficiency filter member, etc., and the second filter member may be a high efficiency filter member, a medium efficiency filter member, a coarse efficiency filter member, etc.
With regard to the fresh air module of the air conditioning indoor unit, in some possible embodiments, the first filtering member is disposed at a position close to an upstream side of the first flow channel in an airflow flowing direction; and/or
The second filter member is provided in the second flow passage at a position close to an upstream side in an airflow passage direction.
By providing the filter member at a position close to the upstream side of each flow passage in the direction of air flow, the filtering efficiency can be improved, and the air duct can be kept clean.
It will be appreciated that the filter member may be disposed at any suitable location within each flow passage.
In some possible embodiments, as for the fresh air module of the air conditioning indoor unit, the filtering precision of the first filtering member is greater than that of the second filtering member, and the cross-sectional size of the first flow channel is greater than that of the second flow channel.
When the filtering precision of the filtering component is higher, the wind resistance of the fresh air flowing in the flow channel can be increased, and under the condition that the rotating speed of the fan is the same as the section size of the flow channel, the wind resistance of the flow channel with high precision of the filtering component is large, so that the air inflow is reduced. The utility model discloses a sufficient air input can be guaranteed in the cross sectional dimension of the runner at the higher filtering component place of increase filter fineness when obtaining the high accuracy filter effect, need not to improve the air input through the mode that improves the fan rotational speed, can the reduction system energy consumption.
For the fresh air module of the air-conditioning indoor unit, in some feasible embodiments, the fresh air module further comprises an electric heater, and the electric heater is used for heating all or part of air flow circulating in the fresh air duct.
Through set up electrical heating in the new trend wind channel, can reduce the influence of the outdoor low temperature of in-process of taking a breath to indoor temperature under the lower condition of outdoor temperature in winter to make indoor temperature can maintain in comfortable within range, and then can promote user experience.
In some possible embodiments, the electrical heating includes a first electrical heating and a second electrical heating, the first electrical heating is disposed in the first flow channel, and the second electrical heating is disposed in the second flow channel.
Through all setting up electrical heating in first runner and second runner for the new trend gets into all can be heated from arbitrary runner indoor in-process.
In some possible embodiments, the first electrical heater is disposed on a downstream side of the first flow channel along the airflow flowing direction,
the second electric heater is arranged at a position of the second flow passage close to the downstream side in the airflow flowing direction.
The electric heating is arranged at the position of each flow channel close to the downstream side along the airflow flowing direction, so that the retention time of the heated airflow in the air duct can be reduced, the heat loss can be reduced, and the heating efficiency is improved.
For the fresh air module of the air conditioning indoor unit, in some possible embodiments, the first flow channel and the second flow channel share the fresh air blower.
Through sharing new trend fan, can reduce the hardware cost to and reduce the installation space who occupies, be favorable to the miniaturized design of new trend module.
For the fresh air module of the indoor unit of the air conditioner, in some feasible embodiments, the fresh air module includes a fresh air outlet, and the fresh air fan is disposed between the fresh air outlet and the downstream sides of the first flow channel and the second flow channel along the airflow flowing direction.
Through setting up the new trend fan between the new trend export of new trend module and the downstream side of first runner, second runner along the air current circulation direction, be favorable to providing even air current drive power to two runners.
In some possible embodiments, the damper is provided with a switching mechanism, and the damper can selectively block the first flow passage or the second flow passage by means of the switching mechanism.
Compared with the technical scheme that the independently controlled air doors are respectively arranged in the first flow passage and the second flow passage, the air door with the switching mechanism is arranged, and the first flow passage or the second flow passage is selectively blocked by the switching mechanism, so that the mounting space required is relatively small, the control is simple, and the cost is low.
The second aspect of the utility model provides an indoor set of air conditioning still, this indoor set of air conditioning include aforementioned arbitrary technical scheme fresh air module.
It can be understood by those skilled in the art that, since the air conditioning indoor unit is configured with the fresh air module of the air conditioning indoor unit according to any one of the foregoing technical solutions, all technical effects of the fresh air module are achieved, and are not described herein again.
Drawings
The utility model discloses an indoor set of air conditioning and new trend module thereof is described below with reference to the attached drawing, in the attached drawing:
fig. 1 is a schematic view of the air duct structure of the fresh air module of the present invention;
list of reference numerals:
1. a fresh air duct; 10. a first flow passage; 11. a second flow passage; 12. a fresh air inlet; 13. a fresh air outlet; 2. a filter member; 20. a high efficiency filtration member; 21. a coarse filtration member; 3. electrically heating; 30. first electrical heating; 31. second electric heating; 4. a fresh air fan; 5. an air return duct; 50. an air return inlet; 51. an air return outlet; 6. and a return air fan.
Detailed Description
Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the following embodiments are explained in connection with a split type air conditioner, this is not limitative, and the present invention is also applicable to a cabinet air conditioner, a window air conditioner, and the like, without departing from the principle and scope of the present invention.
Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present invention. It will be understood by those skilled in the art that the present invention may be practiced without some of these specific details.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The utility model provides an indoor set of air conditioning includes air conditioning module and new trend module, and air conditioning module can refrigerate or heat during the operation, and new trend module can introduce indoor, air conditioning module and new trend module autonomous working with outdoor new trend during the operation. In a specific configuration, the fresh air module can be arranged below the air conditioning module.
The fresh air module in the embodiment comprises a shell, a fresh air duct 1 and a return air duct 5 are formed in the shell, a filtering component 2, an electric heater 3 and a fresh air fan 4 are arranged in the fresh air duct, and a return air fan 6 is arranged in the return air duct 5. Under the condition that the fresh air fan 4 is started, outdoor fresh air enters the room through the fresh air duct 1 and is filtered and purified by the filtering components in the first flow passage 10 or the second flow passage 11 in the process. In the case where the return air fan 6 is started, the indoor dirty air is discharged to the outside through the return air duct 5. The indoor air pressure is basically kept unchanged under the condition that fresh air and turbid air enter and exit at the same time. In this embodiment, the air flow direction between the fresh air duct 1 and the return air duct 5 is opposite, and heat exchange can be realized through reasonable setting and material selection, so that waste heat recovery is realized, for example, the fresh air duct and the return air duct are set to be independent and attached structures.
Referring to fig. 1, the fresh air duct 1 is divided into two parts to form a first flow passage 10 and a second flow passage 11 parallel to each other. The first flow path 10 is provided with a high efficiency filter member 20, and the high efficiency filter member 20 is provided at a position on the upstream side of the first flow path 10 in the airflow direction. A coarse filter member 21 is provided in the second flow path 11, and the coarse filter member 21 is provided in the second flow path 11 at a position close to the upstream side in the airflow direction. In the fresh air duct 1 of the present embodiment, in order to compensate the air volume of the first flow channel 10 and reduce the problem of small air volume caused by the high-efficiency filter member 20, the cross-sectional dimension of the first flow channel 10 is set to be larger than the cross-sectional dimension of the second flow channel 11, so as to increase the air intake amount.
With continued reference to fig. 1, the electrical heating 3 is used to heat all or part of the air flow circulating within the fresh air duct 1. Specifically, the electric heating includes a first electric heating 30 and a second electric heating 31, the first electric heating 30 is disposed in the first flow passage 10, and the second electric heating 31 is disposed in the second flow passage 11. More specifically, the first electric heater 30 is disposed at a position near the downstream side of the first flow passage 10 in the airflow communication direction, and the second electric heater 31 is disposed at a position near the downstream side of the second flow passage 11 in the airflow communication direction.
It will be understood that the electric heater 3 may be disposed at any suitable position in the flow passage, such as at the middle of each flow passage, or at a position of the first flow passage 10 near the upstream side in the flow direction of the air flow, and so on.
In order to reduce the hardware cost, the first flow path 10 and the second flow path 11 in the embodiment share the fresh air fan 4, and the fresh air fan 4 is located between the fresh air outlet 13 and the downstream sides of the first flow path 10 and the second flow path 11 in the airflow circulation direction.
The utility model provides a two new trend entry 12, new trend export 13, return air entry 50 and return air export 51 all can set up independent control's air door respectively (not shown). The air door arranged at the fresh air inlet 12 in the embodiment is provided with a switching mechanism, the switching mechanism comprises a motor, a transmission gear, a rotating shaft and a swinging plate, the swinging plate is pivotally connected between the two fresh air inlets 12 through the rotating shaft, the swinging plate can swing through the driving of the motor, when the swinging plate swings to the fresh air inlet 12 at the left side, the inlet of the second flow passage 11 is blocked, and the first flow passage 10 is opened; when the damper swings to the fresh air inlet 12 on the right side, the inlet of the first flow channel 10 is blocked, and the second flow channel 11 is opened, so that the swing type air door is constructed. In the air intake process, usually, the two flow channels are not used simultaneously.
The working principle of the fresh air module of the present invention is described below.
After the air conditioner indoor unit starts a fresh air function, an outdoor air quality index is obtained through a sensor, and which flow channel needs to be opened is judged according to the obtained outdoor air quality index. For example, when the outdoor air quality index is higher than 50, which indicates that the outdoor air quality is relatively poor, the damper is controlled to open the first flow passage 10 and close the second flow passage 11, and the outdoor air passes through the high efficiency filter member 20 and enters the room; when the outdoor air quality index is not higher than 50, which indicates that the outdoor air quality is relatively good, the damper is controlled to open the second flow passage 11 and close the first flow passage 10, and the outdoor air enters the room after being filtered by the coarse filter member 21. Meanwhile, in order to maintain the indoor and outdoor air pressure balance, the return air duct 5 may be opened to connect the return air inlet 50 and the return air outlet 51, and the return air fan 6 may be started to discharge the indoor foul air to the outside through the return air duct 5.
It can be understood that the air volume of the first flow channel 10 or the second flow channel 11 can also be adjusted by adjusting the rotation speed of the fresh air fan 4. For example, in the case where the first flow channel 10 and the second flow channel 11 have the same cross-sectional size, the rotation speed of the fresh air fan 4 may be increased when the first flow channel 10 is opened, and the rotation speed of the fresh air fan 4 may be decreased when the second flow channel 11 is opened.
Above-mentioned situation is applicable to the less condition of indoor outer difference in temperature, if this new trend module moves in winter, and outdoor low temperature can reduce indoor temperature by a wide margin, influences indoor travelling comfort. At this time, whether the electric heating needs to be started or not needs to be judged according to the outdoor temperature condition. For example, the outdoor temperature is obtained through a temperature sensor, and under the condition that the flow channel is selected, when the outdoor temperature is lower than 15 ℃, the electric heating of the corresponding flow channel is started; when the outdoor temperature is not lower than 15 ℃, the electric heating of the corresponding flow channel is not started.
It should be noted that the numbers in the above examples are only exemplary and should not be construed as limiting the scope of protection, and the specific temperature threshold and air quality index threshold may be determined by one skilled in the art according to actual needs.
It will be appreciated that in some situations it may be advantageous to have a pressure differential between the interior and exterior of the room, for example, in situations where the quality of the outdoor air is poor, where it may be advantageous to have a pressure slightly above the outdoor pressure, where the pressure differential between the interior and exterior of the room may be created by adjusting the speed of rotation between the fresh air fan 4 and the return air fan 6.
So far, the technical solution of the present invention has been described with reference to the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, a person skilled in the art can make equivalent changes or substitutions to the related technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a new trend module of machine in air conditioning, a serial communication port, new trend module includes new trend wind channel and return air wind channel, be provided with the new trend fan that is used for promoting the air current circulation in the new trend wind channel, be provided with the return air fan that is used for promoting the air current circulation in the return air wind channel, new trend wind channel includes:
a first flow passage in which a first filter member is disposed; and
a second flow passage provided in parallel with the first flow passage, a second filter member being provided in the second flow passage,
wherein the first filter member and the second filter member have different filter fineness;
the new trend wind channel includes the new trend entry, the new trend wind channel is in the new trend entry disposes the air door, the air door can with first runner and/or the shutoff of second runner.
2. The fresh air module of an air conditioning indoor unit of claim 1, wherein the first filter member is disposed in the first flow channel at a position close to an upstream side in an airflow direction; and/or
The second filter member is provided in the second flow passage at a position close to an upstream side in an airflow passage direction.
3. The fresh air module of an indoor unit of an air conditioner according to claim 2, wherein the first filter member has a filtering accuracy greater than that of the second filter member, and the first flow passage has a sectional size greater than that of the second flow passage.
4. The fresh air module of an indoor unit of an air conditioner as claimed in claim 1, further comprising an electric heater for heating all or part of the air flow circulating in the fresh air duct.
5. The fresh air module of an indoor unit of an air conditioner as claimed in claim 4, wherein the electrical heating includes a first electrical heating and a second electrical heating, the first electrical heating is disposed in the first flow channel, and the second electrical heating is disposed in the second flow channel.
6. The fresh air module of an indoor unit of an air conditioner as claimed in claim 5, wherein the first electric heater is disposed at a position of the first flow channel near a downstream side in an airflow flowing direction,
the second electric heater is arranged at a position of the second flow passage close to the downstream side in the airflow flowing direction.
7. The fresh air module of an indoor unit of an air conditioner as claimed in claim 1, wherein the first flow channel and the second flow channel share the fresh air blower.
8. The fresh air module of an indoor unit of an air conditioner as claimed in claim 7, wherein the fresh air module comprises a fresh air outlet, and the fresh air fan is disposed between the fresh air outlet and downstream sides of the first flow channel and the second flow channel in an airflow flowing direction.
9. The fresh air module of an indoor unit of an air conditioner as claimed in claim 1, wherein the damper is provided with a switching mechanism by means of which the damper can selectively block the first flow passage or the second flow passage.
10. An air-conditioning indoor unit, characterized by comprising the fresh air module of any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120370011.4U CN214841215U (en) | 2021-02-10 | 2021-02-10 | Air conditioner indoor unit and fresh air module thereof |
| PCT/CN2021/118265 WO2022068576A1 (en) | 2021-02-10 | 2021-09-14 | Air conditioning indoor unit, and fresh air ventilation module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120370011.4U CN214841215U (en) | 2021-02-10 | 2021-02-10 | Air conditioner indoor unit and fresh air module thereof |
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| Publication Number | Publication Date |
|---|---|
| CN214841215U true CN214841215U (en) | 2021-11-23 |
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| CN202120370011.4U Active CN214841215U (en) | 2021-02-10 | 2021-02-10 | Air conditioner indoor unit and fresh air module thereof |
Country Status (2)
| Country | Link |
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| CN (1) | CN214841215U (en) |
| WO (1) | WO2022068576A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121676B (en) * | 2014-08-07 | 2020-02-14 | 珠海格力电器股份有限公司 | Fresh air handling unit and temperature and humidity adjusting method |
| CN208418985U (en) * | 2018-05-21 | 2019-01-22 | 青岛海尔空调器有限总公司 | Air conditioner indoor unit |
| WO2020057087A1 (en) * | 2018-09-20 | 2020-03-26 | 广东美的制冷设备有限公司 | Air conditioner cleaning apparatus, air conditioner indoor unit, and air conditioner |
| CN109708240A (en) * | 2019-02-01 | 2019-05-03 | 广东美的暖通设备有限公司 | New blower |
| CN210425270U (en) * | 2019-08-12 | 2020-04-28 | 珠海格力电器股份有限公司 | Air conditioner with variable filtering precision |
| CN211233101U (en) * | 2020-04-30 | 2020-08-11 | 北京金茂人居环境科技有限公司 | Temperature control fresh air system |
| CN213019946U (en) * | 2020-07-09 | 2021-04-20 | 青岛海尔空调器有限总公司 | New trend system and air conditioning unit |
| CN112665008A (en) * | 2021-01-22 | 2021-04-16 | 青岛海信日立空调系统有限公司 | Machine, all-in-one and assembled air conditioner in new trend air conditioning |
-
2021
- 2021-02-10 CN CN202120370011.4U patent/CN214841215U/en active Active
- 2021-09-14 WO PCT/CN2021/118265 patent/WO2022068576A1/en active Application Filing
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| WO2022068576A1 (en) | 2022-04-07 |
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