CN212777623U - Fresh air system and air conditioner - Google Patents
Fresh air system and air conditioner Download PDFInfo
- Publication number
- CN212777623U CN212777623U CN202021167972.7U CN202021167972U CN212777623U CN 212777623 U CN212777623 U CN 212777623U CN 202021167972 U CN202021167972 U CN 202021167972U CN 212777623 U CN212777623 U CN 212777623U
- Authority
- CN
- China
- Prior art keywords
- air
- heat exchange
- indoor
- outdoor
- air quality
- 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.)
- Active
Links
- 238000000746 purification Methods 0.000 claims abstract description 45
- 230000005611 electricity Effects 0.000 claims description 3
- 230000033228 biological regulation Effects 0.000 abstract description 10
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 54
- 239000001569 carbon dioxide Substances 0.000 description 27
- 229910002092 carbon dioxide Inorganic materials 0.000 description 27
- 238000001514 detection method Methods 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000003507 refrigerant Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 208000032140 Sleepiness Diseases 0.000 description 2
- 206010041349 Somnolence Diseases 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- -1 particulate matters Chemical compound 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000003867 tiredness Effects 0.000 description 1
- 208000016255 tiredness Diseases 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
本实用新型提供一种新风系统及空调器，新风系统包括室内空气质量传感器、室外空气质量传感器和净化装置；室内空气质量传感器和室外空气质量传感器分别与净化装置电连接。通过室内空气质量传感器和室外空气质量传感器检测室内外空气质量CA和CR，根据CA和CR的值来控制净化装置是否启动，净化装置启动后将新风中的废气和污染物净化掉，使进入室内的空气保持清新，从而实现对室内空气质量进行精确调控，当CA和CR达不到启动净化装置的条件时，净化装置不启动，延长净化装置的使用寿命。
The utility model provides a fresh air system and an air conditioner. The fresh air system comprises an indoor air quality sensor, an outdoor air quality sensor and a purification device; the indoor air quality sensor and the outdoor air quality sensor are respectively electrically connected with the purification device. The indoor and outdoor air quality CA and CR are detected by the indoor air quality sensor and the outdoor air quality sensor, and whether the purification device is activated or not is controlled according to the values of CA and CR. The air is kept fresh, so as to achieve precise regulation of indoor air quality. When CA and CR fail to meet the conditions for starting the purification device, the purification device will not be activated, extending the service life of the purification device.
Description
Technical Field
The application relates to the technical field of air conditioners, in particular to a fresh air system and an air conditioner.
Background
The too high concentration of carbon dioxide in the indoor air can lead to the problems of tiredness, somnolence, inattention and the like of the user. The air conditioner in the prior art can realize adjusting the temperature and humidity of the indoor air usually, but can not adjust the carbon dioxide concentration in the indoor air, so the accurate regulation and control of the indoor air quality can not be realized, and the user experience is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a new trend system and air conditioner for solve among the prior art air conditioner can't carry out the problem of accurate regulation and control to the room air quality.
Accordingly, in a first aspect of the present application, there is provided a fresh air system comprising an indoor air quality sensor, an outdoor air quality sensor, and a purification device;
the indoor air quality sensor and the outdoor air quality sensor are respectively and electrically connected with the purification device;
the indoor air quality sensor is positioned indoors and used for detecting the indoor air quality;
the outdoor air quality sensor is positioned outdoors and used for detecting the quality of outdoor air;
the purifying device is used for purifying air entering a room.
The new trend system that this application first aspect provided detects indoor air quality CA and sends detection signal for purifier through indoor air quality sensor, detects outdoor air quality CR and sends detection signal for purifier through outdoor air quality sensor, whether controls purifier according to indoor air quality or according to the relation of indoor air quality and outdoor air quality and starts, for example, when CA is greater than the default, opens purifier, and purifier purifies the air (being the new trend) that gets into indoor. When CA shows that indoor carbon dioxide concentration is too high, purifier purifies the air that gets into indoor, reduces the concentration of carbon dioxide in the air that gets into indoor, perhaps sends outdoor air into indoorly to dilute indoor air, make carbon dioxide concentration reduce in the indoor air, thereby realize carrying out accurate regulation and control to carbon dioxide concentration in the indoor air, the same reason can also be through detecting CA corresponding regulation and control indoor oxygen concentration, clear away formaldehyde etc. thereby realize carrying out accurate regulation and control to indoor air quality. When CA and CR can not reach the condition for starting the purification device, the purification device is not started, and the service life of the purification device is prolonged.
In one possible embodiment of the first aspect of the present application, the outdoor air quality sensor is disposed at an outdoor air inlet.
Through the above possible implementation of the first aspect of the application, when the air conditioner operates, the outdoor air near the air inlet is gradually sucked into the room, before the air is sucked into the room, the outdoor air quality sensor can timely detect the quality of the outdoor air to be sucked into the room, the detection accuracy is high, and the response speed is high.
In a possible implementation manner of the first aspect of the present application, the air conditioner further includes an air duct, and the air duct is connected in series with the air inlet, the purification device and the indoor air outlet in sequence.
With the above possible embodiments of the first aspect of the present application, when the air conditioner is operated, the outdoor air sequentially flows through the outdoor air inlet, the air duct, the purifying device, the air duct, and the indoor air outlet, and finally enters the indoor space, when the detection results of the indoor air quality sensor and the outdoor air quality sensor accord with the condition of starting the purification device, the purification device starts to start, the air in the air duct flowing through the purification device is purified, and purification items (including carbon dioxide, oxygen, particulate matters, water vapor and the like) are determined according to the detection result of the air quality, such as the detection of overhigh concentration of carbon dioxide in the indoor air, the purification apparatus absorbs carbon dioxide in the air taken into the room, and the air having a low carbon dioxide content is mixed with the air having a high carbon dioxide content in the room to dilute the carbon dioxide in the air in the room, thereby reducing the carbon dioxide concentration in the air in the room. The purification device can adopt a combination of solution absorption, activated carbon adsorption and the like, for example, carbon dioxide is filtered by lime water or sodium hydroxide solution, and water vapor and particulate matters are adsorbed and filtered by activated carbon.
In a possible implementation manner of the first aspect of the present application, the air conditioner further comprises a temperature sensor and a heat exchange device, the heat exchange device is electrically connected to the temperature sensor, the temperature sensor is used for detecting outdoor ambient temperature, and the heat exchange device is used for exchanging heat for air entering the room.
Through the above-mentioned possible embodiment of this application first aspect, temperature sensor detects outdoor ambient temperature, controls heat transfer device operation according to outdoor ambient temperature to the temperature difference that makes the indoor air temperature of entering and room air keeps in less scope, and it is uncomfortable to lead to the human body in order to avoid cold and hot inhomogeneous or the difference in temperature sudden change.
In a possible embodiment of the first aspect of the present application, the heat exchange device comprises a heat exchange tube, and two ends of the heat exchange tube are respectively communicated with two ends of the evaporator.
Through the possible implementation manner of the first aspect of the present application, when the heat exchange device works, the refrigerant in the evaporator flows through the heat exchange tube, the heat exchange tube is located at the indoor air outlet, i.e., air to enter the room flows through the heat exchange tube to exchange heat with the heat exchange tube, when the temperature of the air flow is higher than that of the heat exchange tube, the heat exchange tube absorbs the temperature of the air, and the heat exchange tube pre-cools the air; when the air temperature is lower than that of the heat exchange tube, the air absorbs the heat of the heat exchange tube, and the heat exchange tube preheats the air.
In a possible embodiment of the first aspect of the present application, a flow valve is connected to a loop of the heat exchange tube connected to the evaporator, and the flow valve is electrically connected to the temperature sensor.
Through the above possible implementation manner of the first aspect of the present application, the temperature sensor detects the outdoor ambient temperature, and controls the opening degree of the flow valve according to the outdoor ambient temperature, thereby controlling the refrigerant flow flowing through the heat exchange tube, and controlling the heat exchange rate between the heat exchange tube and the air flowing through the heat exchange tube by controlling the refrigerant flow flowing through the heat exchange tube.
In a possible embodiment of the first aspect of the present application, the heat exchanger further includes a bypass pipe, the heat exchanger and the evaporator can be communicated through the bypass pipe, and the flow valve is disposed on the bypass pipe.
Through the above-mentioned possible embodiment of this application first aspect, the heat exchange tube sets up to the coil pipe, area of contact between increase and the air, improve heat exchange efficiency, the bypass pipe surface can cladding heat preservation, reduce the heat loss that the in-process of heat transfer to the heat exchange tube takes place from the bypass pipe, it can be convenient to change the position of setting in the heat exchange tube to set up the bypass pipe, for example with the heat exchange tube setting at indoor air outlet, and the evaporimeter has one section distance apart from the air outlet, accessible bypass pipe butt joint this moment. The bypass is led out from the indoor unit connecting pipe to exchange heat with fresh air, and compared with a fresh air device only using electricity for assisting heat in the prior art, the scheme of the application can meet the requirements of refrigeration and heating at the same time; and simultaneously improves energy efficiency.
In a possible embodiment of the first aspect of the present application, the heat exchanging device is disposed at an indoor air outlet.
Through the above possible implementation manner of the first aspect of the present application, when the outdoor air temperature is higher than the indoor air temperature, the outdoor air flows through the air inlet, the air duct and the air outlet in sequence, and contacts with the air duct and achieves a certain degree of heat exchange in the flowing process in the air duct, when the heat exchange device is arranged in the air duct, the temperature of the hot air is reduced through the heat exchange device, the reduced air continues to flow to the air outlet along the air duct, continues to contact with the inner wall of the air duct and performs a certain degree of heat exchange, the air after being cooled is likely to return to the temperature, and the temperature rises to form hot air again. Consequently, set up heat transfer device at the air outlet, air and the contact of wind channel inner wall after can avoiding cooling, the air after the cooling forms the direct diffusion of new trend to indoor, mixes with indoor air, adjusts the temperature of room air.
In one possible embodiment of the first aspect of the present application, the temperature sensor is an outer ring temperature sensor.
Through the above possible implementation manner of the first aspect of the present application, an external ring temperature sensor of an outdoor unit of an air conditioner may be used for detecting an outdoor environment temperature, under the condition that the temperature sensor is not additionally added, a pre-estimated value of an outdoor fresh air temperature is obtained through an external ring temperature of the air conditioner, an empirical formula or a fitting formula is obtained according to statistics, and a fresh air actual temperature corresponding to the pre-estimated value is obtained through formula conversion.
In a second aspect of the present application, an air conditioner is provided, including in the first aspect of the present application the fresh air system, the fresh air system with the mainboard electrical connection of air conditioner.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic view of a connection structure between a heat exchange device and an evaporator according to a first embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a fresh air system according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a control method of a fresh air system in the third embodiment of the present application.
Description of reference numerals:
110. an indoor air quality sensor; 120. an outdoor air quality sensor; 130. a purification device;
140. an air duct; 141. an air inlet; 142. an air outlet;
150. a heat exchange device; 151. a heat exchange pipe; 152. a flow valve; 153. a bypass pipe;
210. a compressor; 220. a four-way valve; 230. a condenser; 240. a throttling device; 250. an evaporator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and the detailed description. It should be understood that the detailed description and specific examples, while indicating the scope of the disclosure, are intended for purposes of illustration only and are not intended to limit the scope of the disclosure.
It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
It will be understood that when an element is referred to as being "secured to" another element, it can be integral with the other element or can be removably connected to the other element.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Further, it is to be understood that, in the embodiments, the positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "one side", "the other side", "one end", "the other end", and the like are based on the positional relationships shown in the drawings; the terms "first," "second," and the like are used herein to distinguish one structural element from another. These terms are merely for convenience in describing the present application and simplifying the description, and should not be construed as limiting the present application.
As described in the background art, too high a concentration of carbon dioxide in indoor air may cause problems such as fatigue, somnolence, and inattention of a user. The air conditioner in the prior art can realize adjusting the temperature and humidity of the indoor air usually, but can not adjust the carbon dioxide concentration in the indoor air, so the accurate regulation and control of the indoor air quality can not be realized, and the user experience is influenced.
To solve the above technical problem, in a first embodiment of the present application, as shown in fig. 1 and fig. 2, a fresh air system is provided, which includes an indoor air quality sensor 110, an outdoor air quality sensor 120, and a purification device 130; the indoor air quality sensor 110 and the outdoor air quality sensor 120 are electrically connected to the purification apparatus 130, respectively; the indoor air quality sensor 110 is located indoors for detecting indoor air quality; the outdoor air quality sensor 120 is located outdoors for detecting the outdoor air quality; the purification apparatus 130 is used to purify air introduced into the room.
In the fresh air system provided in the first embodiment of the present application, the indoor air quality sensor 110 detects the indoor air quality CA and sends a detection signal to the purification device 130, the outdoor air quality sensor 120 detects the outdoor air quality CR and sends a detection signal to the purification device 130, and whether the purification device 130 is started or not is controlled according to the indoor air quality or according to the relationship between the indoor air quality and the outdoor air quality, for example, when CA is greater than a preset value, the purification device 130 is started, and the purification device 130 purifies the air (i.e., fresh air) entering the room. When CA shows that indoor carbon dioxide concentration is too high, purifier 130 purifies the air that gets into indoor, reduces the concentration of carbon dioxide in the air that gets into indoor, perhaps sends outdoor air into indoor to dilute indoor air, make carbon dioxide concentration reduce in the indoor air, thereby realize carrying out accurate regulation and control to carbon dioxide concentration in the indoor air, and the same reason can also be through detecting CA corresponding regulation and control indoor oxygen concentration, clear away formaldehyde etc. thereby realize carrying out accurate regulation and control to indoor air quality. When CA and CR do not meet the condition for activating the purge device 130, the purge device 130 is not activated, extending the life of the purge device 130.
In a possible implementation manner of the first embodiment of the present application, the outdoor air quality sensor 120 is disposed at the air inlet 141 outside the room.
Through the above possible implementation manner of the first embodiment of the present application, when the air conditioner operates, the outdoor air near the air inlet 141 is gradually sucked into the room, and before the air is sucked into the room, the outdoor air quality sensor 120 can timely detect the quality of the outdoor air to be sucked into the room, so that the detection accuracy is high, and the response speed is high.
In a possible implementation manner of the first embodiment of the present application, the air duct 140 is further included, and the air duct 140 is connected in series with the air inlet 141, the purification apparatus 130, and the indoor air outlet 142.
Through the above possible implementation manner of the first embodiment of the present application, when the air conditioner operates, outdoor air sequentially flows through the outdoor air inlet 141, the air duct 140, the purification device 130, the air duct 140, and the indoor air outlet 142, and finally enters the room, when the detection results of the indoor air quality sensor 110 and the outdoor air quality sensor 120 meet the condition of starting the purification device 130, the purification device 130 starts to start, so as to purify the air flowing through the purification device 130 in the air duct 140, and the purification items (including carbon dioxide, oxygen, particulate matters, water vapor, and the like) are determined according to the detection result of the air quality, for example, when the concentration of carbon dioxide in the indoor air is detected to be too high, the purification device 130 absorbs carbon dioxide in the air entering the room, the air with low carbon dioxide content is mixed with the air with high carbon dioxide content in the room, so, thereby reducing the carbon dioxide concentration in the indoor air. The purification device 130 can use a combination of solution absorption, activated carbon adsorption and the like, for example, carbon dioxide is filtered by lime water or sodium hydroxide solution, and water vapor and particulate matter are adsorbed and filtered by activated carbon.
In a possible implementation manner of the first embodiment of the present application, the air conditioner further includes a temperature sensor and a heat exchanging device 150, the heat exchanging device 150 is electrically connected to the temperature sensor, the temperature sensor is used for detecting an outdoor ambient temperature, and the heat exchanging device 150 is used for exchanging heat for air entering a room.
Through the above possible implementation manner of the first embodiment of the present application, the temperature sensor detects the outdoor ambient temperature, and controls the heat exchanging device 150 to operate according to the outdoor ambient temperature, so that the temperature difference between the air entering the room and the indoor air is kept in a small range, and discomfort caused by uneven cooling or sudden temperature difference is avoided.
In a possible implementation manner of the first embodiment of the present application, the heat exchanging device 150 includes a heat exchanging pipe 151, and two ends of the heat exchanging pipe 151 are configured to communicate with two ends of the evaporator 250, respectively.
Through the above possible implementation manner of the first embodiment of the present application, when the heat exchanging device 150 works, the refrigerant in the evaporator 250 flows through the heat exchanging tube 151, the heat exchanging tube 151 is located at the indoor air outlet 142, that is, air to enter the room flows through the heat exchanging tube 151 to exchange heat with the heat exchanging tube 151, when the temperature of the air flow is higher than that of the heat exchanging tube 151, the heat exchanging tube 151 absorbs the temperature of the air, and the heat exchanging tube 151 precools the air; when the air temperature is lower than the heat exchange pipe 151, the air absorbs heat of the heat exchange pipe 151, and the heat exchange pipe 151 preheats the air.
In a possible implementation manner of the first embodiment of the present application, a flow valve 152 is connected to a loop of the heat exchange pipe 151 connected to the evaporator 250, and the flow valve 152 is electrically connected to a temperature sensor.
Through the above possible implementation manner of the first embodiment of the present application, the temperature sensor detects the outdoor ambient temperature, and controls the opening degree of the flow valve 152 according to the outdoor ambient temperature, so as to control the flow rate of the refrigerant flowing through the heat exchange tube 151, and control the heat exchange rate between the heat exchange tube 151 and the air flowing through the heat exchange tube 151 by controlling the flow rate of the refrigerant flowing through the heat exchange tube 151.
In a possible implementation manner of the first embodiment of the present application, a bypass pipe 153 is further included, the heat exchange pipe 151 and the evaporator 250 can be communicated through the bypass pipe 153, and the flow valve 152 is disposed on the bypass pipe 153.
Through the above possible implementation manner of the first embodiment of the application, the heat exchange tube 151 is set as a coil, the contact area between the heat exchange tube 151 and the air is increased, the heat exchange efficiency is improved, the outer surface of the bypass tube 153 can be coated with the heat preservation layer, the heat loss generated in the process of transferring the heat from the bypass tube 153 to the heat exchange tube 151 is reduced, the position where the heat exchange tube 151 is arranged can be conveniently replaced by arranging the bypass tube 153, for example, the heat exchange tube 151 is arranged at the indoor air outlet 142, and the evaporator 250 has a certain distance from the air outlet 142, and at this time. The bypass is led out from the indoor unit connecting pipe to exchange heat with fresh air, and compared with a fresh air device only using electricity for assisting heat in the prior art, the scheme of the application can meet the requirements of refrigeration and heating at the same time; and simultaneously improves energy efficiency.
In a possible implementation manner of the first embodiment of the present application, the heat exchanging device 150 is disposed at the indoor air outlet 142.
Through the above possible implementation manner of the first embodiment of the present application, when the outdoor air temperature is higher than the indoor air temperature, the outdoor air sequentially flows through the air inlet 141, the air duct 140, and the air outlet 142, and contacts with the air duct 140 and achieves a certain degree of heat exchange in the flowing process in the air duct 140, when the heat exchanging device 150 is disposed in the air duct 140, the temperature of the hot air decreases through the heat exchanging device 150, the decreased air continues to flow to the air outlet 142 along the air duct 140, and continues to contact with the inner wall of the air duct 140 and performs a certain degree of heat exchange, which may cause the air after temperature decrease to have a temperature return, and the temperature rises to form hot air again. Therefore, the heat exchange device 150 is arranged at the air outlet 142, so that the contact between the cooled air and the inner wall of the air duct 140 can be avoided, the cooled air forms fresh air which is directly diffused to the indoor and mixed with the indoor air, and the temperature of the indoor air is adjusted.
In a possible implementation manner of the first embodiment of the present application, the temperature sensor is an outer ring temperature sensor.
Through the above possible implementation manner of the first embodiment of the application, an external ring temperature sensor of an outdoor unit of an air conditioner can be used for detecting the outdoor environment temperature, under the condition that the temperature sensor is not additionally arranged, a pre-estimated value of the outdoor fresh air temperature is obtained through the external ring temperature of the air conditioner, an empirical formula or a fitting formula is obtained according to statistics, and the actual fresh air temperature corresponding to the pre-estimated value is obtained through formula conversion.
In the second embodiment of the present application, an air conditioner is provided, including the fresh air system in the first embodiment of the present application, the fresh air system is electrically connected with the main board of the air conditioner. The air conditioner further comprises a compressor 210, a four-way valve 220, a condenser 230, a throttling device 240 and an evaporator 250, wherein the condenser 230, the throttling device 240, the evaporator 250 and the four-way valve 220 are sequentially connected in series, the compressor 210 is connected with the four-way valve 220, and the heat exchange device 150 is connected to two ends of the evaporator 250 in parallel.
In a third embodiment of the present application, a control method of a fresh air system is provided, which is used for controlling the fresh air system in the first embodiment of the present application, and as shown in fig. 3, the method includes the following steps:
s110, detecting indoor air quality CA and outdoor air quality CR;
and S120, when the indoor air quality CA and the outdoor air quality CR accord with the starting condition of the fresh air system, starting the fresh air system.
In a possible implementation manner of the third embodiment of the present application, the start condition of the fresh air system includes that CA is greater than the first preset value C0.
In a possible implementation manner of the third embodiment of the present application, the start condition of the fresh air system includes that the CA minus CR is greater than the second preset value C1.
In a possible implementation manner of the third embodiment of the present application, the method further includes step S130, when the indoor air quality CA and the outdoor air quality CR do not meet the starting condition of the fresh air system, after suspending the detection and delaying the preset time T0, detecting the indoor air quality CA and the outdoor air quality CR.
In a possible implementation manner of the third embodiment of the present application, the method further includes step S210, when the indoor air quality CA meets the opening condition of the purification apparatus 130, opening the purification apparatus 130.
In a possible implementation manner of the third embodiment of the present application, the start condition of the purification apparatus 130 includes that CA is greater than the third preset value C2.
In a possible implementation manner of the third embodiment of the present application, further comprising,
s220, detecting the outdoor environment temperature TR;
s230, calculating an absolute value | TS-TR | of the difference between the TR and the preset temperature TS;
s240, judging a preset temperature difference range of the TS-TR;
and S250, controlling the opening F of the flow valve 152 according to the preset temperature difference range of the TS-TR.
In a possible implementation manner of the third embodiment of the present application, the preset temperature difference range at least includes four different and consecutive value intervals, and each value interval corresponds to one opening F.
For example, the first step: a user starts the operation of the air conditioner, judges whether the user synchronously gives an instruction for starting the fresh air system, if so, starts the fresh air system, and enters a third step; otherwise, only the air conditioner is operated.
The second step is that: the indoor and outdoor air quality sensor 120 automatically detects the indoor and outdoor air quality CA, CR at intervals of T0; when the indoor air quality detection value CA is more than C0 or the indoor air quality detection value-outdoor air quality detection value CA-CR is more than C1, the indoor air quality is poor, the fresh air system is automatically started, otherwise, the original running state is kept unchanged;
the third step: judging that the outdoor air quality CR is more than C2; if so, the quality of the outdoor air is poor, and the purification device 130 starts to work to purify the fresh air to be introduced into the room so as to ensure the quality of the fresh air; otherwise, the quality of the outdoor air is good, and the purification device 130 does not work, so as to prolong the service life of the purification device 130;
the fourth step: automatically reading the outdoor environment temperature TR of the air conditioner and the user set temperature TS; and calculating the range of the value of the T-TR, and comparing the range with a preset value to determine the opening degree of the flow valve 152 in the heat exchange loop of the fresh air system so as to ensure that the temperature of the fresh air introduced into the room meets the requirement of a user and the indoor comfort is not influenced. The corresponding relationship between preset TS-TR and the opening of the flow valve 152 is shown in the following table 1:
| |TS-TR| | |TS-TR|＜T1 | T1≤|TS-TR|＜T2 | T2≤|TS-TR|＜T3 | T3≤|TS-TR| |
| valve opening F | f1 | f2 | f3 | f4 |
TABLE 1
T1, T2, and T3 respectively represent preset section temperature thresholds, and f1, f2, f3, and f4 respectively represent different opening degrees of the flow valve 152, where the opening degrees refer to opening degrees.
It should be noted that, in the embodiments of the method and the system, the modules included in the embodiments are only divided according to functional logic, but are not limited to the above division as long as the corresponding functions can be implemented; in addition, specific names of the functional modules are only used for distinguishing one functional module from another, and are not used for limiting the protection scope of the application.
In addition, it can be understood by those skilled in the art that all or part of the steps in the method for implementing the embodiments described above can be implemented by instructing the relevant hardware through a program, and the corresponding program can be stored in a computer-readable storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A fresh air system is characterized by comprising an indoor air quality sensor (110), an outdoor air quality sensor (120) and a purification device (130);
the indoor air quality sensor (110) and the outdoor air quality sensor (120) are respectively electrically connected with the purification device (130);
the indoor air quality sensor (110) is positioned indoors and used for detecting the indoor air quality;
the outdoor air quality sensor (120) is located outdoors and is used for detecting the quality of outdoor air;
the purification device (130) is used for purifying air entering the room.
2. The fresh air system as claimed in claim 1, wherein the outdoor air quality sensor (120) is disposed at an outdoor air inlet (141).
3. The fresh air system as claimed in claim 2, further comprising an air duct (140), wherein the air duct (140) is connected in series with the air inlet (141), the purification device (130) and the indoor air outlet (142) in sequence.
4. The fresh air system as claimed in any one of claims 1 to 3, further comprising a temperature sensor and a heat exchange device (150), wherein the heat exchange device (150) is electrically connected with the temperature sensor, the temperature sensor is used for detecting the outdoor ambient temperature, and the heat exchange device (150) is used for exchanging heat for the air entering the room.
5. The fresh air system as recited in claim 4, wherein the heat exchange device (150) comprises a heat exchange tube (151), and two ends of the heat exchange tube (151) are respectively communicated with two ends of the evaporator (250).
6. The fresh air system as claimed in claim 5, wherein a flow valve (152) is connected to a loop of the heat exchange tube (151) connected to the evaporator (250), and the flow valve (152) is electrically connected to the temperature sensor.
7. The fresh air system as claimed in claim 6, further comprising a bypass pipe (153), the heat exchange pipe (151) and the evaporator (250) being capable of communicating through the bypass pipe (153), the flow valve (152) being provided on the bypass pipe (153).
8. The fresh air system as claimed in claim 4, wherein the heat exchanging device (150) is provided at an indoor air outlet (142).
9. The fresh air system as claimed in claim 4, wherein the temperature sensor is an outer ring temperature sensor.
10. An air conditioner, characterized in that, includes the new trend system in any one of claims 1 to 9, the new trend system is connected with the mainboard electricity of the air conditioner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021167972.7U CN212777623U (en) | 2020-06-22 | 2020-06-22 | Fresh air system and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021167972.7U CN212777623U (en) | 2020-06-22 | 2020-06-22 | Fresh air system and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212777623U true CN212777623U (en) | 2021-03-23 |
Family
ID=75074925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021167972.7U Active CN212777623U (en) | 2020-06-22 | 2020-06-22 | Fresh air system and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212777623U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091135A (en) * | 2021-04-12 | 2021-07-09 | 青岛海尔空调器有限总公司 | Method and device for controlling fresh air equipment and fresh air conditioner |
| CN113819534A (en) * | 2021-07-15 | 2021-12-21 | 仲恺农业工程学院 | Novel window machine fresh air conditioner |
| CN113899011A (en) * | 2020-06-22 | 2022-01-07 | 宁波奥克斯电气股份有限公司 | A kind of fresh air system, air conditioner and control method of fresh air system |
| CN114484713A (en) * | 2022-02-28 | 2022-05-13 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
| CN114893897A (en) * | 2022-06-14 | 2022-08-12 | 珠海格力电器股份有限公司 | Control method and device for fresh air conditioner |
-
2020
- 2020-06-22 CN CN202021167972.7U patent/CN212777623U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899011A (en) * | 2020-06-22 | 2022-01-07 | 宁波奥克斯电气股份有限公司 | A kind of fresh air system, air conditioner and control method of fresh air system |
| CN113091135A (en) * | 2021-04-12 | 2021-07-09 | 青岛海尔空调器有限总公司 | Method and device for controlling fresh air equipment and fresh air conditioner |
| WO2022218002A1 (en) * | 2021-04-12 | 2022-10-20 | 青岛海尔空调器有限总公司 | Method and apparatus for controlling fresh air device, and fresh air conditioner |
| CN113819534A (en) * | 2021-07-15 | 2021-12-21 | 仲恺农业工程学院 | Novel window machine fresh air conditioner |
| CN114484713A (en) * | 2022-02-28 | 2022-05-13 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
| CN114893897A (en) * | 2022-06-14 | 2022-08-12 | 珠海格力电器股份有限公司 | Control method and device for fresh air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212777623U (en) | Fresh air system and air conditioner | |
| CN203687199U (en) | Multifunctional fan coil | |
| CN211041202U (en) | Fresh air humidifying unit with double cold and heat sources | |
| CN104913393A (en) | Constant-temperature constant-humidity air conditioner | |
| WO2021143946A1 (en) | Automatic optimizing and energy-saving control system based on combination of body warmth comfort and optimal person numbers | |
| CN210512165U (en) | Air source heat pump air heater | |
| CN204853680U (en) | Air conditioner with constant temperature and humidity | |
| CN212719997U (en) | Air conditioning system and heat recovery type air duct machine system thereof | |
| CN102818318B (en) | Efficient energy-saving self-control system device for air conditioner of operating room | |
| CN220958682U (en) | Indoor unit of vertical air conditioning unit and air conditioning unit | |
| CN219120665U (en) | Heat recovery formula new trend air conditioner dehumidification all-in-one | |
| CN111853943A (en) | Indoor air conditioning system and control method thereof | |
| CN113899011A (en) | A kind of fresh air system, air conditioner and control method of fresh air system | |
| CN102914014A (en) | Heat pump air-conditioning system | |
| CN204757227U (en) | Integrative energy -conserving air conditioner of new trend natural cooling and mechanical refrigeration | |
| CN209415686U (en) | A kind of fresh air conditioner system suitable for passive type pole low energy-consumption house | |
| CN208222729U (en) | Air purifier | |
| CN205425172U (en) | According to spacing air handler temperature control device of delivered air quantity control water valve aperture | |
| CN111023497A (en) | Split type ethylene glycol heat recovery fresh air conditioning unit | |
| CN105588288A (en) | Temperature control device controlling opening degree limit of water valve according to supply air volume for fan coil | |
| CN110068145A (en) | Air source heat pump air heater | |
| CN213514191U (en) | Multifunctional air conditioner | |
| CN212299347U (en) | Total heat exchanger | |
| CN105737339A (en) | Fan coil temperature control device capable of controlling opening limit range of water valve according to return air temperature | |
| CN110017562A (en) | Double-cold source fresh air handling unit and its refrigeration control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 315191 No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee after: NINGBO AUX ELECTRIC Co.,Ltd. Country or region after: China Patentee after: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. Address before: No. 1166 Mingguang North Road, Jiangshan Town, Ningbo, Zhejiang, Yinzhou District Patentee before: NINGBO AUX ELECTRIC Co.,Ltd. Country or region before: China Patentee before: AUX AIR CONDITIONING LIMITED BY SHARE Ltd. |