CN114413337A - Fresh air energy-saving type cabin air conditioner and control method thereof - Google Patents
Fresh air energy-saving type cabin air conditioner and control method thereof Download PDFInfo
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- CN114413337A CN114413337A CN202111609863.5A CN202111609863A CN114413337A CN 114413337 A CN114413337 A CN 114413337A CN 202111609863 A CN202111609863 A CN 202111609863A CN 114413337 A CN114413337 A CN 114413337A
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- 238000000034 method Methods 0.000 title claims description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 27
- 230000001360 synchronised effect Effects 0.000 claims abstract description 17
- 230000001276 controlling effect Effects 0.000 claims description 12
- 210000001503 joint Anatomy 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000005265 energy consumption Methods 0.000 description 12
- 238000005457 optimization Methods 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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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
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
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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
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention provides a fresh air energy-saving type cabin air conditioner which comprises a control mechanism and a ventilation mechanism, wherein the control mechanism is electrically connected with the ventilation mechanism and is used for controlling the working state of the ventilation mechanism; the ventilation mechanism is electrically connected with a synchronous driving mechanism, the synchronous driving mechanism is electrically connected with the control mechanism and used for controlling the opening and closing of the ventilation mechanism according to a control instruction of the control mechanism, the air supply valve and the fresh air valve are integrated in the cabin air conditioner, the air supply valve and the fresh air valve are controlled to be opened and closed simultaneously through two synchronous motors under a normal mode, when a user closes a fan of the cabin air conditioner, the air supply valve and the fresh air valve are closed synchronously, the fresh air cooling load and the power of the fresh air fan are reduced, and therefore the purpose of energy saving is achieved.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air energy-saving cabin air conditioner and a control method thereof.
Background
With the rapid development of economy in China, the air conditioner is widely applied to various places such as houses, office buildings and the like, and the air conditioner is accompanied by large energy consumption while improving the indoor environment comfort level, so that the energy-saving design of the air conditioner has important significance for reducing carbon emission.
Energy conservation of main parts of equipment is usually only concerned about energy conservation of existing air conditioners in energy conservation design, if a fan motor with higher energy efficiency is selected, the heat exchange area of a heat exchanger is enlarged, and the like, attention to fresh air energy consumption, a control method and the like is less, taking a common fan coil and an independent fresh air system in a passenger cabin of a mail carrier as an example, the fan coil and the fresh air system are independently controlled, and a user can only close the fan coil but cannot close fresh air when the air conditioner is not needed, so that waste of fresh air energy is easily caused, and unnecessary energy consumption is caused.
Disclosure of Invention
In order to solve the problems, the invention provides a fresh air energy-saving type cabin air conditioner and a control method thereof, which realize the measures of common control of fresh air and air supply, interlocking control of a fresh air valve and a balcony door and the like, and effectively reduce unnecessary energy consumption.
The fresh air energy-saving type cabin air conditioner comprises a control mechanism and a ventilation mechanism, wherein the control mechanism is electrically connected with the ventilation mechanism and is used for controlling the working state of the ventilation mechanism; and the ventilation mechanism is electrically connected with a synchronous driving mechanism, and the synchronous driving mechanism is electrically connected with the control mechanism and used for controlling the opening and closing of the ventilation mechanism according to a control instruction of the control mechanism.
As a further optimization of the present invention, the ventilation mechanism includes a blower, an air supply valve, and a fresh air valve, and the blower, the air supply valve, and the fresh air valve are electrically connected to the control mechanism and configured to open and close according to a control instruction of the control mechanism.
As a further optimization of the invention, the synchronous driving mechanism comprises a first driving motor and a second driving motor, and the first driving motor is electrically connected with the air supply valve; the second driving motor is electrically connected with the fresh air valve.
As a further optimization of the invention, the fresh air control system further comprises a fixed air volume valve, wherein the fixed air volume valve is arranged on the fresh air valve, is electrically connected with the control mechanism and is used for controlling the fresh air volume.
The invention further optimizes the system and the method, and the system also comprises a sensor which is arranged on the cabin door body, is in signal butt joint with the control mechanism and is used for detecting the opening and closing state of the cabin door body.
A control method of a fresh air energy-saving cabin air conditioner controls the fresh air energy-saving cabin air conditioner, and the method comprises the following steps:
starting the air conditioner, and simultaneously starting the air supply valve, the fresh air valve and the air feeder;
after the blower is started for a period of time, detecting the opening and closing state of the cabin door body;
when the cabin door body is in a closed state, the air conditioner enters a normal mode, the air supply valve and the fresh air valve are continuously opened, and the air supply machine runs at a set rotating speed;
when the cabin door body is in an opening state, the air conditioner enters an energy-saving mode, the air supply valve is kept opened, the fresh air valve is closed, and the rotating speed of the air supply machine is reduced.
As a further optimization of the invention, the time for opening the blower for a period of time is 150-.
As a further optimization of the invention, the time interval for detecting whether the cabin door body is opened is set to be 100-150 s.
As a further optimization of the invention, the method further comprises the steps of closing the blower after the air conditioner receives the shutdown command, and then synchronously closing the blower valve and the fresh air valve.
As further optimization of the invention, the method also comprises the step of accurately regulating and controlling the fresh air quantity through the quantitative air valve when the air conditioner enters a normal mode.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the fresh air energy-saving cabin air conditioner, the air supply valve and the fresh air valve are integrated in the cabin air conditioner, the air supply valve and the fresh air valve are controlled to be opened and closed simultaneously through the two synchronous motors in a normal mode, when a user closes a fan of the cabin air conditioner, the air supply valve and the fresh air valve are closed synchronously, and fresh air cooling load and the power of the fresh air fan are reduced, so that the aim of saving energy is fulfilled.
2. The fresh air valve and the cabin door body in the fresh air energy-saving cabin air conditioner are subjected to interlocking control, the opening and closing states of the cabin door body are collected through the cabin door body sensor, outdoor fresh air can be directly supplemented into a room when a balcony door is opened, an energy-saving mode is started at the moment, the air supply valve and the fresh air valve are controlled in a releasing interlocking mode, the air supply valve is opened, the fresh air valve is closed, and unnecessary energy consumption of the fresh air is reduced.
3. In the fresh air energy-saving cabin air conditioner, the constant air volume valve is added on the fresh air valve, and the constant air volume valve can automatically balance fresh air volume and reduce energy consumption loss caused by unbalance of a ventilation system.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of a fresh air energy-saving cabin air conditioner according to the present invention;
fig. 2 is a flow chart of a control method of the fresh air energy-saving cabin air conditioner.
In the above figures, 1, a control mechanism; 2. a ventilation mechanism; 201. a blower; 202. an air supply valve; 203. a fresh air valve; 3. a synchronous drive mechanism; 301. a first drive motor; 302. a second drive motor; 4. and (4) a fixed air volume valve.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
A traditional fan coil is provided with an independent fresh air system, the fan coil and the fresh air system are independently controlled, a user can only close a fan of the fan coil but cannot close fresh air when the air conditioner is not needed, and waste of fresh air energy is easily caused.
Therefore, as shown in fig. 1, the invention provides a fresh air energy-saving type cabin air conditioner, which is wall-mounted and is installed outside a cabin, indoor return air is conveyed into the air conditioner through a return air pipeline, is cooled by a surface air cooler, is mixed with fresh air, and is conveyed indoors through an air supply pipeline, and the fresh air energy-saving type cabin air conditioner mainly comprises a control mechanism 1 and a ventilation mechanism 2, wherein the control mechanism 1 is electrically connected with the ventilation mechanism 2 and is used for controlling the working state of the ventilation mechanism 2; the ventilation mechanism 2 is electrically connected with a synchronous driving mechanism 3, the synchronous driving mechanism 3 is electrically connected with the control mechanism 1 and is used for controlling the ventilation mechanism to be opened and closed according to a control instruction of the control mechanism 1, common control through fresh air and air supply is achieved, and unnecessary energy consumption is effectively reduced.
In this embodiment, the ventilation mechanism 2 includes a blower 201, a blower valve 202, and a fresh air valve 203, and the blower 201, the blower valve 202, and the fresh air valve 203 are electrically connected to the control mechanism 1 and configured to open and close according to a control instruction of the control mechanism 1.
In this embodiment, the synchronous driving mechanism 3 includes a first driving motor 301 and a second driving motor 302, and the first driving motor 301 is electrically connected to the blast valve 201; the second driving motor 302 is electrically connected with the fresh air valve 203, so that the air conditioner can control the air supply valve and the fresh air valve to be opened and closed simultaneously through the two synchronous motors in a normal mode, when a user closes a fan of the cabin air conditioner, the air supply valve and the fresh air valve are closed synchronously, and the fresh air cooling load and the power of the fresh air fan are reduced, thereby achieving the purpose of saving energy.
As another embodiment of the present invention, different from the above embodiments, the fresh air energy saving cabin air conditioner in the present embodiment further includes: the fixed air volume valve 4 is arranged on the fresh air valve 203, is electrically connected with the control mechanism 1 and is used for controlling fresh air volume; because of the level air valve can automatic balance the fresh air volume, alleviate the energy consumption loss because of the unbalanced ventilation system leads to.
As another embodiment of the present invention, different from the above embodiments, the fresh air energy saving cabin air conditioner in the present embodiment further includes: the sensor is arranged on the cabin door body and is in signal butt joint with the control mechanism, the opening and closing state of the cabin door body is detected, the interlocking control of the fresh air valve and the balcony door is achieved, the opening and closing state of the cabin door body is collected through the sensor of the cabin door body, outdoor fresh air can be directly supplemented indoors when the cabin door body is opened, the energy-saving mode is opened at the moment, the air supply valve and the fresh air valve are controlled in an unlocking and interlocking mode, the air supply valve is opened, the fresh air valve is closed, and unnecessary energy consumption of the fresh air is reduced.
As shown in fig. 2, a method for controlling a fresh air energy-saving cabin air conditioner, which controls the fresh air energy-saving cabin air conditioner, includes:
starting the air conditioner, and simultaneously starting the air supply valve, the fresh air valve and the air feeder;
after the blower is started for a period of time, detecting the opening and closing state of the cabin door body;
when the cabin door body is in a closed state, the air conditioner enters a normal mode, the air supply valve and the fresh air valve are continuously opened, and the air supply machine runs at a set rotating speed;
when the cabin door body is in an opening state, the air conditioner enters an energy-saving mode, the air supply valve is kept opened, the fresh air valve is closed, and the rotating speed of the air supply machine is reduced.
In the embodiment, the fresh air valve and the air supply valve are integrated in the air conditioner and are jointly controlled by the two valves; when the air conditioner operates in a refrigerating mode and the air blower is started for 180s, the opening and closing state of the cabin door body is detected, if the cabin door body is in the closing state, the air conditioner enters a normal mode, the air supply valve and the fresh air valve are kept open continuously, and the rotating speed of the air blower operates according to the set rotating speed; when the cabin door body is detected to be opened, the outdoor fresh air can be directly supplemented indoors, the energy-saving mode is entered, the fresh air valve is closed, and the heat and humidity load of the fresh air processing unit and the power consumption of the fresh air fan are reduced. Meanwhile, in the embodiment, in order to avoid frequent valve actions caused by the fact that a user opens and closes the cabin door body in a short time, the time interval for detecting whether the cabin door body is opened is set to be 120 s.
As another embodiment of the present invention, different from the above-described embodiments, the control method in the present embodiment further includes: after the air conditioner receives a shutdown command, even if the air conditioner is in a normal mode, the air supply valve and the fresh air valve are synchronously closed after the air supply machine is closed, and the energy consumption of fresh air is reduced. The opening and closing of the fresh air valve and the air supply valve are controlled by two synchronous motors, and when the main board receives signals such as a power on/off command and the opening and closing state of a cabin door body, the main board sends commands to drive the synchronous motors to rotate according to the target states of the valves under different scenes set in a program, so that the opening and closing state of the valves can be regulated and controlled.
As another embodiment of the present invention, different from the above embodiments, the control method in this embodiment not only accurately determines whether a room needs fresh air, but also accurately regulates and controls the fresh air volume required in the normal mode. In the new trend system, because the room of difference is in the different positions of system, often can appear the unbalanced problem that leads to the amount of wind uneven of wind, partly not enough in the room fresh air of branch road, partly is close to the room fresh air of main road too big, and this kind of unbalanced wind-force has not only influenced the comfort level and has also increased the energy consumption, and the work load of adjusting wind-force balance in the engineering is great and receive the construction level influence great. Therefore, the constant air volume valve is added on the fresh air valve, and the valve can be automatically opened or closed according to the set fresh air volume and the pressure difference between the front and the rear of the valve in actual operation, so that the fresh air volume is controlled within a certain range, the imbalance of the wind power of a fresh air system is effectively reduced, and the energy consumption of the fresh air system is reduced.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (10)
1. The utility model provides an energy-saving cabin air conditioner of new trend which characterized in that: the ventilation device comprises a control mechanism and a ventilation mechanism, wherein the control mechanism is electrically connected with the ventilation mechanism and is used for controlling the working state of the ventilation mechanism; and the ventilation mechanism is electrically connected with a synchronous driving mechanism, and the synchronous driving mechanism is electrically connected with the control mechanism and used for controlling the opening and closing of the ventilation mechanism according to a control instruction of the control mechanism.
2. The fresh air energy-saving cabin air conditioner according to claim 1, characterized in that: the ventilation mechanism comprises a blower, an air supply valve and a fresh air valve, and the blower, the air supply valve and the fresh air valve are electrically connected with the control mechanism and are used for opening and closing according to a control instruction of the control mechanism.
3. The fresh air energy-saving cabin air conditioner according to claim 2, characterized in that: the synchronous driving mechanism comprises a first driving motor and a second driving motor, and the first driving motor is electrically connected with the air supply valve; the second driving motor is electrically connected with the fresh air valve.
4. The fresh air energy-saving cabin air conditioner according to claim 2, characterized in that: the fresh air quantity control device is characterized by further comprising a constant air quantity valve, wherein the constant air quantity valve is installed on the fresh air valve, is electrically connected with the control mechanism and is used for controlling the fresh air quantity.
5. The fresh air energy-saving cabin air conditioner according to claim 1, characterized in that: the device also comprises a sensor, wherein the sensor is arranged on the cabin door body, is in signal butt joint with the control mechanism and is used for detecting the opening and closing state of the cabin door body.
6. A control method of a fresh air energy-saving cabin air conditioner is characterized by comprising the following steps: a fresh air energy-saving type cabin air conditioner according to any one of claims 1 to 5, wherein the method comprises the following steps:
starting the air conditioner, and simultaneously starting the air supply valve, the fresh air valve and the air feeder;
after the blower is started for a period of time, detecting the opening and closing state of the cabin door body;
when the cabin door body is in a closed state, the air conditioner enters a normal mode, the air supply valve and the fresh air valve are continuously opened, and the air supply machine runs at a set rotating speed;
when the cabin door body is in an opening state, the air conditioner enters an energy-saving mode, the air supply valve is kept opened, the fresh air valve is closed, and the rotating speed of the air supply machine is reduced.
7. The control method of the fresh air energy-saving cabin air conditioner according to claim 6, characterized in that: the time for opening the blower for a period of time is 150-.
8. The control method of the fresh air energy-saving cabin air conditioner according to claim 6, characterized in that: the time interval for detecting whether the cabin door body is opened is set to be 100-150 s.
9. The control method of the fresh air energy-saving cabin air conditioner according to claim 6, characterized in that: and after the air conditioner receives a shutdown command, closing the air feeder, and then synchronously closing the air feeder valve and the fresh air valve.
10. The control method of the fresh air energy-saving cabin air conditioner according to claim 6, characterized in that: and the method also comprises the step of accurately regulating and controlling the fresh air quantity through the quantitative air valve when the air conditioner enters a normal mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609863.5A CN114413337A (en) | 2021-12-24 | 2021-12-24 | Fresh air energy-saving type cabin air conditioner and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111609863.5A CN114413337A (en) | 2021-12-24 | 2021-12-24 | Fresh air energy-saving type cabin air conditioner and control method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN114413337A true CN114413337A (en) | 2022-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111609863.5A Pending CN114413337A (en) | 2021-12-24 | 2021-12-24 | Fresh air energy-saving type cabin air conditioner and control method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790179A1 (en) * | 1996-02-16 | 1997-08-20 | FINCANTIERI CANTIERI NAVALI ITALIANI S.p.A. | Air-conditioning device particularly for cruise ship cabins |
| CN202709328U (en) * | 2012-07-20 | 2013-01-30 | 何森 | Multifunctional floor type fresh air fan |
| CN106196357A (en) * | 2016-08-15 | 2016-12-07 | 江苏兆胜空调有限公司 | A kind of Intelligent region formula air-conditioning unit |
| CN111959544A (en) * | 2020-09-16 | 2020-11-20 | 上海科泰运输制冷设备有限公司 | Rail transit train, air conditioner and air valve |
| CN212511417U (en) * | 2020-06-28 | 2021-02-09 | 中国电力工程顾问集团西北电力设计院有限公司 | Full operating mode air conditioner of secondary cabin in sand blown by wind region |
| CN213777910U (en) * | 2020-12-07 | 2021-07-23 | 英得艾斯（上海）冷冻空调有限公司 | Special purification fan coil pipe for ship cabin |
| CN213872954U (en) * | 2020-11-27 | 2021-08-03 | 武汉博亚德自动化工程有限公司 | Fresh air central air conditioner |
-
2021
- 2021-12-24 CN CN202111609863.5A patent/CN114413337A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0790179A1 (en) * | 1996-02-16 | 1997-08-20 | FINCANTIERI CANTIERI NAVALI ITALIANI S.p.A. | Air-conditioning device particularly for cruise ship cabins |
| CN202709328U (en) * | 2012-07-20 | 2013-01-30 | 何森 | Multifunctional floor type fresh air fan |
| CN106196357A (en) * | 2016-08-15 | 2016-12-07 | 江苏兆胜空调有限公司 | A kind of Intelligent region formula air-conditioning unit |
| CN212511417U (en) * | 2020-06-28 | 2021-02-09 | 中国电力工程顾问集团西北电力设计院有限公司 | Full operating mode air conditioner of secondary cabin in sand blown by wind region |
| CN111959544A (en) * | 2020-09-16 | 2020-11-20 | 上海科泰运输制冷设备有限公司 | Rail transit train, air conditioner and air valve |
| CN213872954U (en) * | 2020-11-27 | 2021-08-03 | 武汉博亚德自动化工程有限公司 | Fresh air central air conditioner |
| CN213777910U (en) * | 2020-12-07 | 2021-07-23 | 英得艾斯（上海）冷冻空调有限公司 | Special purification fan coil pipe for ship cabin |
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