CN108592199A - Air conditioner in machine room - Google Patents
Air conditioner in machine room Download PDFInfo
- Publication number
- CN108592199A CN108592199A CN201810438724.2A CN201810438724A CN108592199A CN 108592199 A CN108592199 A CN 108592199A CN 201810438724 A CN201810438724 A CN 201810438724A CN 108592199 A CN108592199 A CN 108592199A
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- CN
- China
- Prior art keywords
- machine room
- air conditioner
- water
- humidifier
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
-
- 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
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied air
-
- 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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Conditioning Control Device (AREA)
- Air Humidification (AREA)
Abstract
The invention belongs to air conditioner in machine room technical fields, it is intended to which a large amount of energy consumption can be caused by solving the humidification method of existing air conditioner in machine room, and energy saving is bad, and the higher problem of operating cost.Thus, the present invention provides a kind of air conditioner in machine room, the air conditioner in machine room includes shell, evaporator and wind turbine, stream wind channel is provided in shell, evaporator is arranged at wind turbine in stream wind channel, air conditioner in machine room further includes the humidifier being arranged in shell, and humidifier is configured to be selectively accessing to stream wind channel, selectively to be humidified to the air for flowing through wind channel.The present invention can make humidifier that can just work when there is humidification demand, and it causes air flow through humidifier by the effect of wind turbine the steam in humidifier can be taken away, to realize being sufficiently mixed for air and water, and then reduce itself energy consumption of humidifier, make humidifier energy-saving run on the basis of meeting air conditioner in machine room humidification, operating cost is reduced, user experience is promoted.
Description
Technical field
The invention belongs to air conditioner in machine room technical fields, specifically provide a kind of air conditioner in machine room.
Background technology
With the fast development of internet economy, many network electronic computer rooms are built out.To ensure electronics in computer room
The normal table of equipment is run and reliability, and the temperature and humidity in computer room is needed to keep relative stability, that is, keeps constant temperature permanent
Wet building environment, if the humidity in computer room is relatively low, air is relatively dry, and electrostatic electricity is easy tod produce between electronic component
Spark Discharges, so as to cause electronic component scaling loss, while dry air is easy airborne dust, to make the air in computer room
Environmental rating requirement is not achieved in cleannes, and based on the requirement of above-mentioned building environment constant temperature and humidity, the humidification especially in computer room needs
It asks, needs in time to humidify computer room.
In the prior art, the humidification method of air conditioner in machine room includes mainly electrode humidifler humidification and infrared humidifier humidifies
Two ways.The principle of electrode humidifler humidification is to submerge electrode in water, makees conducting medium using water and is produced with heating water
The shortcomings that raw steam is humidified, this humidification method is that water power does not detach and makes water itself and charges that there are certain peaces
Full hidden danger, and the easy fouling of electrode surface, service life is short, while higher to water quality requirement, need in special circumstances to water into
Row pretreatment, causes cost higher；The principle of infrared humidifier humidifies is to irradiate water surface with high-temperature infrared fluorescent tube, by water surface
The shortcomings that heating evaporation generation humidifying effect, this humidification method, is that there are feux rouges pollutions, and humidification amount is unable to control, together
When the infrared lamp service life it is shorter, maintenance cost is higher.To sum up, being the consumption by electric energy using above-mentioned humidification method
Realize the evaporation humidification of water, along with a large amount of energy consumption in whole process, energy saving is bad, and operating cost compared with
It is high.
Therefore, this field needs a kind of new air conditioner in machine room to solve the above problems.
Invention content
In order to solve the above problem in the prior art, the humidification method in order to solve existing air conditioner in machine room can cause greatly
The energy consumption of amount, energy saving is bad, and the higher problem of operating cost, and the present invention provides a kind of air conditioner in machine room, the machines
Room air-conditioning includes shell, evaporator and wind turbine, and stream wind channel is provided in shell, and evaporator is arranged at stream wind channel with wind turbine
Interior, air conditioner in machine room further includes the humidifier being arranged in shell, and humidifier is configured to be selectively accessing to stream wind
In channel, selectively to be humidified to the air for flowing through wind channel.
In the optimal technical scheme of above-mentioned air conditioner in machine room, humidifier includes air door and humidification component, air door and humidification
Component is arranged in stream wind channel, and air door can be such that humidification component is selectively accessing to stream wind channel by being opened and closed.
In the optimal technical scheme of above-mentioned air conditioner in machine room, in the case of door opening, humidification component accesses to stream wind
In channel；In the case of air door is closed, humidification component is picked out out of stream wind channel.
In the optimal technical scheme of above-mentioned air conditioner in machine room, air door is arranged with rotating manner in stream wind channel.
In the optimal technical scheme of above-mentioned air conditioner in machine room, humidification component includes the water tank being arranged in shell, cycle
Water in water tank can be delivered to water collector by water pump, water collector and wet film core, water circulating pump, and water collector can be by water
Wet film core is delivered to drench wet film core.
In the optimal technical scheme of above-mentioned air conditioner in machine room, water collector is arranged in the top of wet film core.
In the optimal technical scheme of above-mentioned air conditioner in machine room, feed water inlet and discharge outlet are provided on water tank.
First chamber, second chamber and are disposed in the optimal technical scheme of above-mentioned air conditioner in machine room, in shell
Three chambers, evaporator are arranged in first chamber, and the compressor of humidifier and air conditioner in machine room is arranged in second chamber, wind
Machine is arranged in third chamber.
In the optimal technical scheme of above-mentioned air conditioner in machine room, the heater of air conditioner in machine room is arranged in first chamber and is located at
The downstream of evaporator.
In the optimal technical scheme of above-mentioned air conditioner in machine room, on shell, the upstream of evaporator be provided with filter screen.
It will be appreciated to those of skill in the art that in the preferred technical solution of the present invention, by the way that humidifier is set
It sets in the shell of air conditioner in machine room, and humidifier can be selectively accessing to stream wind channel so that have in computer room and add
Directly humidifier can be accessed in stream wind channel when wet demand, air wetting can be realized, compared with prior art, this
Invention can make humidifier that can just work when there is humidification demand, and cause air flow through humidifier by the effect of wind turbine
Water in humidifier can be taken away, to realize being sufficiently mixed for air and water, and then reduce itself energy of humidifier
Consumption makes humidifier energy-saving run on the basis of meeting air conditioner in machine room humidification, reduces operating cost, promotes user experience.
Further, humidification component can be made to be selectively accessing to stream wind channel by air door, to make humidification group
Part can just work when there is humidification demand, and then can control the humidification amount of air conditioner in machine room, ensure that humidity always can in computer room
In most suitable range, to make the electronic equipment in computer room that can reliablely and stablely run always.
Further, the water in water tank can be delivered in water collector by water circulating pump, water collector can incite somebody to action
Water is delivered on wet film core, to drench wet film core so that when humidification component accesses in stream wind channel, wind turbine makes
Portion of air in stream wind channel flows through wet film core, to make the water on wet film core force natural evaporation, and then realizes
The humidification of air compared with prior art, can be to avoid using this humidification method to meet to the humidification demand of air conditioner in machine room
Water power contacts, and feux rouges pollution will not occurs, while to water quality without particular/special requirement, humidification component is without the extra electricity of consumption
Can, so that air conditioner in machine room efficiently, greenly, energy saving is carried out wet operations, and operating cost is greatly lowered, while making machine
The operation of room air-conditioning is more safe and reliable, improves the use scope of air conditioner in machine room.
Still further, being arranged humidifier in the downstream of heater, can occur after evaporator to avoid air
Condensation, to improve humidification efficiency to a certain extent.
Further, the air that can be will go into shell by filter screen is filtered, and dust is avoided to enter
In stream wind channel in shell, to avoid the parts in shell from being disseminated by dust, and will not due to dust shadow
The wet operations of air conditioner in machine room are rung, user experience is promoted.
Description of the drawings
Fig. 1 is the structural schematic diagram one of the air conditioner in machine room of the present invention；
Fig. 2 is the structural schematic diagram two of the air conditioner in machine room of the present invention.
Specific implementation mode
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining the technical principle of the present invention, it is not intended that limit the scope of the invention.
It should be noted that in the description of the present invention, term " in ", "upper", "lower", "top", "inner", the instructions such as "outside"
Direction or the term of position relationship be direction based on ... shown in the drawings or position relationship, this is intended merely to facilitate description, and
It is not instruction or implies that described device or element must have a particular orientation, with specific azimuth configuration and operation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " are used for description purposes only, and cannot understand
To indicate or implying relative importance.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
The humidification method for the existing air conditioner in machine room pointed out based on background technology can cause a large amount of energy consumption, and energy saving is not
It is good, and the higher problem of operating cost, the present invention provides a kind of air conditioner in machine room, it is intended to air conditioner in machine room be enable to be added
The energy consumption that humidifier is reduced on the basis of wet practice reduces operating cost to make humidifier energy-saving run, promotes user
Experience.
Specifically, as illustrated in fig. 1 and 2, air conditioner in machine room of the invention includes shell 1, evaporator 2, wind turbine 3 and compressor 4,
Stream wind channel is provided in shell 1, evaporator 2 is arranged at wind turbine 3 in stream wind channel, and air conditioner in machine room further includes being arranged in shell
Humidifier in body 1, humidifier is configured to be selectively accessing to stream wind channel, so as to selectively to flowing through
The air in stream wind channel is humidified.Wherein, wind turbine 3 is preferably EC wind turbines, i.e. Thee-phase alternating current permanent-magnetic synchronizes wind turbine, certainly,
In practical application, DC wind turbines, i.e. DC fan can also be selected.
Preferably, as illustrated in fig. 1 and 2, humidifier includes air door 5 and humidification component, and air door 5 and humidification component are respectively provided with
In stream wind channel, air door 5 can be such that humidification component is selectively accessing to stream wind channel by being opened and closed.Specifically,
In the case of air door 5 is opened, humidification component accesses in stream wind channel；In the case of air door 5 is closed, component is humidified from stream
Wind picks out in channel.As shown in Figure 1, wind turbine 3 runs well, wind turbine 3 can be such that the air in stream wind channel flows, when air door 5
When unlatching, flows the portion of air in wind channel and bypasses to humidification component, natural evaporation is forced to which the water on component will be humidified,
To achieve the purpose that humidifying air.As shown in Fig. 2, when air door 5 is closed, the air flowed in wind channel cannot be introduced into humidification group
Part, the non-humidified operation of air conditioner in machine room progress at this time.In a preferred embodiment, air door 5 is being flowed with rotating manner setting
In wind channel, and air door 5 can be communicated to connect with the controller of air conditioner in machine room, and turning for air door 5 can be controlled by controller
Dynamic angle, for example, can make the adjust automatically between 0 to 90 ° of air door 5 by controller, 0 ° is 5 closed state of air door, and 90 ° are wind
Door 5 opens maximum rating, and ventilation quantity is maximum, setting in this way, enables the controller to air stream of the control by air door 5
Amount, to play control action to humidification amount.Certainly, air door 5 can also be arranged by other means in stream wind channel, such as
Air door 5 could be provided as that open and close structure can be opened, to control the stream of air by controlling the opening distance of air door 5
Amount, those skilled in the art can flexibly set the concrete structure of air door 5 in practical applications and air door 5 is flowing wind channel
Interior set-up mode, as long as humidification component can be made to be selectively accessing to stream wind channel by air door 5.
Carry out the technical solution that the present invention is further explained With reference to embodiment.
Specifically, air conditioner in machine room is the air conditioner in machine room of under-floor air supply, and the is disposed in the shell 1 of the air conditioner in machine room
One chamber, second chamber and third chamber, evaporator 2 are arranged in first chamber, the compressor 4 of humidifier and air conditioner in machine room
It is arranged in second chamber, wind turbine 3 is arranged in third chamber.Wherein, first chamber is heat exchanger chamber, and second chamber is pressure
Contracting machine cavity, third chamber is wind turbine chamber, and heat exchanger chamber, compressor chamber and wind turbine chamber are from top to bottom set gradually, and computer room is empty
The heater 10 of tune is arranged in heat exchanger intracavitary and positioned at the downstream of evaporator 2.It includes that (tool is arranged in shell 1 to humidify component
Body be compressor chamber in) water tank 6, water circulating pump 7, water collector 8 and wet film core 9, water circulating pump 7 can be by water tank
Water in 6 is delivered to water collector 8, and water can be delivered to wet film core 9 to drench wet film core 9 by water collector 8.Such as Fig. 1 and 2
Shown, water circulating pump 7 is arranged on water tank 6, and water circulating pump 7 is connect by pipeline with water collector 8, and water collector 8 is preferably set
It sets in the top of wet film core 9, during humidifying component operation, the water in water tank 6 is delivered to by water circulating pump 7 to catchment
In device 8, the water in water collector 8 is uniformly dropped on wet film core 9, to drench wet film core 9, so that humidification component is connecing
Air can be humidified by the water evaporation on wet film core 9 when entering to stream wind channel.In addition, being arranged on water tank 6
Have feed water inlet and discharge outlet, by feed water inlet can the water filling into water tank 6, can be by the water in water tank 6 by discharge outlet
Discharge.In practical applications, the condensed water generated when the water source in water tank 6 preferably uses 2 refrigerating operaton of evaporator, to real
Existing using water wisely, can be by external water source water filling into water tank 6 when condensed water deficiency, such as can be in water tank 6
Water level sensor is set, the water level in water tank 6 is detected by water level sensor, to be opened less than preset value in water level
It opens feed water valve to be connected to external water source with feed water inlet, be supplied water with realizing.When condensation dilutional hyponatremia leads to the water level mistake in water tank 6
Extra condensed water can be discharged by discharge outlet, prevents condensed water from overflowing, setting in this way by Gao Shi, it is ensured that
Water in water tank 6 is always in the zone of reasonableness for meeting humidification demand, can and by being recycled to condensed water
The utilization ratio of water is significantly increased, reaches water-saving purpose.
It should be noted that humidification component is not limited to above-mentioned structure, it can also be other structures, be sprayed for example, by using atomization
The humidification component of structure based on mouth, or using the humidification component of chemical humidification method, those skilled in the art can be in reality
The concrete structure of humidification component is flexibly set in the application of border, as long as can be to flowing through the air in wind channel by humidifying component
It is humidified, this adjustment and change to humidifying component concrete structure is without departing from the principle and scope of the present invention,
It should limit within protection scope of the present invention.
It is further preferred that on shell 1, the upstream of evaporator 2 be provided with filter screen.Filter screen is preferably G4 filter screens
11, as illustrated in fig. 1 and 2, G4 filter screens 11 are arranged at the top of shell 1, i.e., at the air intake vent of shell 1, at air intake vent
It is filtered to entering the air in shell 1, certainly, filter screen can also select the filter screen of other models, this field skill
Art personnel can flexibly set the concrete structure and model of filter screen in practical applications, as long as can be right by filter screen
The air that shell 1 will be entered is filtered, and the adjustment and change of this filter screen concrete structure and model be not inclined
From the principle and scope of the present invention, should all limit within protection scope of the present invention.
So far, it has been combined preferred embodiment shown in the drawings and describes technical scheme of the present invention, still, this field
Technical staff is it is easily understood that protection scope of the present invention is expressly not limited to these specific implementation modes.Without departing from this
Under the premise of the principle of invention, those skilled in the art can make the relevant technologies feature equivalent change or replacement, these
Technical solution after change or replacement is fallen within protection scope of the present invention.
Claims (10)
1. a kind of air conditioner in machine room, the air conditioner in machine room includes shell, evaporator and wind turbine, and it is logical that stream wind is provided in the shell
Road, the evaporator are arranged at the wind turbine in the stream wind channel,
It is characterized in that, the air conditioner in machine room further includes the humidifier being arranged in the shell, the humidifier setting
For that can be selectively accessing to the stream wind channel, selectively to add to the air for flowing through the stream wind channel
It is wet.
2. air conditioner in machine room according to claim 1, which is characterized in that the humidifier include air door and humidification component,
The air door and the humidification component are arranged in the stream wind channel, and the air door can make the humidification by being opened and closed
Component is selectively accessing to the stream wind channel.
3. air conditioner in machine room according to claim 2, which is characterized in that in the case of the door opening, the humidification
Component accesses in the stream wind channel；
In the case of the air door is closed, the humidification component is picked out out of described stream wind channel.
4. air conditioner in machine room according to claim 3, which is characterized in that the air door is arranged with rotating manner in the stream wind
In channel.
5. air conditioner in machine room according to claim 2, which is characterized in that the humidification component includes being arranged in the shell
Water tank, water circulating pump, water collector and wet film core, the water in the water tank can be delivered to by the water circulating pump
Water can be delivered to the wet film core to drench the wet film core by the water collector, the water collector.
6. air conditioner in machine room according to claim 5, which is characterized in that the water collector is arranged in the upper of the wet film core
Side.
7. air conditioner in machine room according to claim 5, which is characterized in that be provided with feed water inlet and draining on the water tank
Mouthful.
8. air conditioner in machine room according to any one of claim 1 to 7, which is characterized in that be disposed in the shell
First chamber, second chamber and third chamber, the evaporator are arranged in the first chamber, the humidifier and described
The compressor of air conditioner in machine room is arranged in the second chamber, and the wind turbine is arranged in the third chamber.
9. air conditioner in machine room according to claim 8, which is characterized in that the setting of the heater of the air conditioner in machine room is described the
Downstream in one chamber and positioned at the evaporator.
10. air conditioner in machine room according to claim 8, which is characterized in that on the shell, the upstream of the evaporator setting
There is filter screen.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438724.2A CN108592199A (en) | 2018-05-09 | 2018-05-09 | Air conditioner in machine room |
| PCT/CN2019/073158 WO2019214296A1 (en) | 2018-05-09 | 2019-01-25 | Machine room air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810438724.2A CN108592199A (en) | 2018-05-09 | 2018-05-09 | Air conditioner in machine room |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108592199A true CN108592199A (en) | 2018-09-28 |
Family
ID=63636740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810438724.2A Pending CN108592199A (en) | 2018-05-09 | 2018-05-09 | Air conditioner in machine room |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108592199A (en) |
| WO (1) | WO2019214296A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110285531A (en) * | 2019-07-31 | 2019-09-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device and readable storage medium storing program for executing |
| WO2019214296A1 (en) * | 2018-05-09 | 2019-11-14 | 青岛海尔空调电子有限公司 | Machine room air conditioner |
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| CN202177833U (en) * | 2011-08-05 | 2012-03-28 | 郑州光力科技股份有限公司 | Gas humidity adjusting device |
| CN103212289A (en) * | 2013-04-25 | 2013-07-24 | 北京化工大学 | Air purification device capable of realizing catalytic decomposition of formaldehyde |
| JP2014066507A (en) * | 2012-09-04 | 2014-04-17 | Daikin Ind Ltd | Humidification device |
| CN104819523A (en) * | 2015-04-27 | 2015-08-05 | 江苏格瑞力德空调制冷设备有限公司 | Refrigeration dehumidifying all-air conditioning unit with all cold and heat sources |
| CN105805854A (en) * | 2016-05-05 | 2016-07-27 | 北京融安特智能科技股份有限公司 | Central centralized control type constant-temperature and constant-humidity fresh air purifying and sterilizing unit |
| CN106555712A (en) * | 2015-09-29 | 2017-04-05 | 长城汽车股份有限公司 | A kind of engine charge moisture control system and automobile |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592199A (en) * | 2018-05-09 | 2018-09-28 | 青岛海尔空调电子有限公司 | Air conditioner in machine room |
-
2018
- 2018-05-09 CN CN201810438724.2A patent/CN108592199A/en active Pending
-
2019
- 2019-01-25 WO PCT/CN2019/073158 patent/WO2019214296A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202177833U (en) * | 2011-08-05 | 2012-03-28 | 郑州光力科技股份有限公司 | Gas humidity adjusting device |
| JP2014066507A (en) * | 2012-09-04 | 2014-04-17 | Daikin Ind Ltd | Humidification device |
| CN103212289A (en) * | 2013-04-25 | 2013-07-24 | 北京化工大学 | Air purification device capable of realizing catalytic decomposition of formaldehyde |
| CN104819523A (en) * | 2015-04-27 | 2015-08-05 | 江苏格瑞力德空调制冷设备有限公司 | Refrigeration dehumidifying all-air conditioning unit with all cold and heat sources |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019214296A1 (en) * | 2018-05-09 | 2019-11-14 | 青岛海尔空调电子有限公司 | Machine room air conditioner |
| CN110285531A (en) * | 2019-07-31 | 2019-09-27 | 广东美的制冷设备有限公司 | Air conditioner and its control method, device and readable storage medium storing program for executing |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019214296A1 (en) | 2019-11-14 |
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