CN212431159U - A multifunctional fresh air purifier - Google Patents
A multifunctional fresh air purifier Download PDFInfo
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- CN212431159U CN212431159U CN202020313637.7U CN202020313637U CN212431159U CN 212431159 U CN212431159 U CN 212431159U CN 202020313637 U CN202020313637 U CN 202020313637U CN 212431159 U CN212431159 U CN 212431159U
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Abstract
The utility model relates to a new trend clean system field for the building, concretely relates to multi-functional new trend clearing machine. The fresh air purifier comprises a machine body shell, an outdoor-to-indoor air flow channel, an indoor-to-outdoor air flow channel and an indoor-to-indoor air flow channel, wherein the outdoor-to-indoor air flow channel, the indoor-to-outdoor air flow channel and the indoor-to-indoor air flow channel are positioned in the machine body shell; the air flow areas at the two sides of the proportional air valve are controlled by controlling the sliding of the proportional air valve through a motor so as to adjust the air quantity from the outdoor air channel to the indoor air channel and the air quantity from the indoor air channel to the indoor air channel; the machine body shell is also internally provided with a multi-effect filter screen, an electric heater, a heat exchanger, a blower, an exhaust fan, a sterilization module, a sensor module, a data transmission module, a control module and a control panel. The utility model discloses a but multi-functional new trend clearing machine rapid purification room air, keep the room air fresh, can introduce outdoor new trend again and in addition filterable air purification device, can provide multiple modes such as pure new fan, pure clarifier, new fan and clarifier hybrid operation simultaneously, accomplish a tractor serves several purposes.
Description
Technical Field
The utility model relates to a new trend clean system field for the building specifically relates to a multi-functional new trend clearing machine.
Background
People spend most of their lives in buildings, the indoor air quality is influenced by various factors such as outdoor atmosphere, indoor decoration materials, personnel activities and the like, and the long-term breathing of polluted air influences human health and causes respiratory diseases of human beings, so how to improve the indoor air quality is increasingly emphasized by people. The new fan isOne of the devices for introducing outdoor fresh air into the room and updating and discharging indoor dirty air can effectively reduce indoor CO2And Volatile Organic Compounds (VOCs) and the like, and increase the oxygen content. In order to ensure the cleanliness of the fresh air introduced into the room, an air filter is also generally arranged in the fresh air fan to filter out bacteria and Particulate Matters (PM) in the fresh air2.5) And other harmful substances. However, in the current market, a common indoor fresh air purifier has no sensor device, or a fresh air introducing machine provided with the sensor device can only sense the concentration of pollutants in indoor air, but cannot perform linkage control of different ventilation modes according to the concentrations of different kinds of pollutants, and still needs to manually control a fresh air adjusting door to obtain fresh air volume, so that the use is very inconvenient.
In addition, pure new trend clearing machine still exists when outdoor air gets into indoorly purification efficiency low, or when indoor dirty air is more serious, and air purification efficiency is lower defect such as, and air purifier improves purification efficiency through air circulating filter in the confined space generally, can compensate the not enough of new fan, but if only take and adorn both simultaneously indoor simple mode, can bring again to occupy the drawback such as indoor space is big, the initial investment is high, unable automatic collaborative operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcomings of the prior art and providing a multifunctional fresh air purifier. The utility model discloses both can purify indoor air fast, keep indoor air fresh, can introduce outdoor new trend again and add filterable air purification device, can provide multiple modes such as pure new fan, pure clarifier, new fan and clarifier hybrid operation simultaneously, accomplish a tractor serves several purposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a multifunctional fresh air purifier which is characterized in that the multifunctional fresh air purifier comprises a machine body shell, wherein a plurality of clapboards positioned in the machine body shell respectively form an outdoor-to-indoor air flow passage, an indoor-to-outdoor air flow passage and an indoor-to-indoor air flow passage; a proportional air valve and a motor are arranged in the machine body shell, and the opening and closing of the proportional air valve are controlled by the motor to control the air circulation areas on two sides of the proportional air valve so as to adjust the air quantity from the outdoor air channel to the indoor air channel and the air quantity from the indoor air channel to the outdoor air channel; an outdoor sensor module, a primary filter screen, a medium filter screen, an electric heater, a heat exchanger, a blower, a sterilization module and a high-efficiency filter screen for collecting outdoor air parameters are sequentially arranged in the outdoor-to-indoor air flow channel; the heat exchanger and the exhaust fan are sequentially arranged in the indoor-to-outdoor air flow channel, and the outdoor-to-indoor air flow channel and the indoor-to-outdoor air flow channel are respectively communicated with different channels in the heat exchanger; an indoor sensor module, the air feeder, the sterilization module and the efficient filter screen are arranged in the indoor-to-indoor air flow channel and used for collecting indoor air parameters; the machine body shell is characterized in that a control panel is embedded in the outer side wall of the machine body shell, a control module and a data transmission module are installed on the inner side wall of the machine body shell, the control panel is used for displaying indoor and outdoor air parameters and equipment operation parameters and performing operation mode selection and parameter setting, the control module is used for controlling the work of all electric devices in the machine body shell, and the data transmission module is further connected with the mobile terminal through wireless transmission.
Furthermore, an outdoor air inlet, an indoor air outlet, an outdoor air outlet, an indoor air return inlet and an indoor air supply outlet are arranged on the side wall of the machine body shell, and the outdoor-to-indoor air channel, the indoor-to-outdoor air channel and the indoor-to-indoor air channel are respectively formed by different chambers formed by a plurality of partition plates; the outdoor air inlet, the first cavity, the second cavity, the first channel of the heat exchanger, the third cavity, the proportional air valve, the fourth cavity, the fifth cavity and the indoor air supply outlet are sequentially communicated to form the outdoor-to-indoor air flow channel, the indoor air outlet, the sixth cavity, the second channel of the heat exchanger, the seventh cavity and the outdoor air outlet are sequentially communicated to form the indoor-to-outdoor air flow channel, and the indoor air return inlet, the eighth cavity, the proportional air valve, the fourth cavity, the fifth cavity and the indoor air supply outlet are sequentially communicated to form the indoor-to-indoor air flow channel; the primary filter screen, the intermediate filter screen and the outdoor sensor module are positioned in the first cavity, the electric heater is positioned in the second cavity and close to one side of the heat exchanger, the exhaust fan and the air feeder are respectively positioned in the seventh cavity and the fourth cavity, and the high-efficiency filter screen and the sterilization module are both positioned in the fifth cavity and close to each other; the indoor sensor module and the outdoor sensor module are respectively arranged at the indoor air return inlet and the outdoor air inlet.
Further, the proportional air valve comprises a hollow frame formed by connecting a front guide rail, a rear guide rail, a left limiting frame and a right limiting frame end to end, and a valve plate positioned in the frame, and the motor comprises a motor body and an adjusting rod; the motor body drives the valve plate to repeatedly slide on the front guide rail and the rear guide rail through the adjusting rod and is positioned between the left limiting frame and the right limiting frame; when the valve plate moves to the leftmost end and is tightly embedded with the left limiting frame, the air circulation area from the indoor air flow channel to the indoor air flow channel is the largest, and the air circulation area from the outdoor air flow channel to the indoor air flow channel is 0; when the valve plate moves to the rightmost end and is tightly embedded with the right limiting frame, the air circulation area of the indoor-to-indoor air flow channel is 0, and the air circulation area of the outdoor-to-indoor air flow channel is the largest.
The utility model has the advantages of it is following and outstanding effect: this multi-functional fresh air purification machine passes through parts such as control module, proportion blast gate, can provide multiple modes such as pure outdoor fresh air operation, pure indoor purification operation, outdoor fresh air and indoor purification mixed operation, but manual setting or the operation of not having manual intervention make the air inlet ratio of fresh air under the different states and return air be the best to reduce fan operation energy consumption, prolong filter screen life. The indoor air outlet of the fresh air purifier is arranged at the lower end of the equipment to directly discharge the foul air at the lower part of the indoor space, so that the pollution of raised dust and the like can be prevented; the indoor air inlet of the purifier is arranged in the middle of the equipment, and the air in the middle of the indoor space is utilized for filtering, sterilizing and recycling; the indoor air supply outlets of the purifier are arranged on two sides of the upper part of the purifier, and are directly delivered to the breathing zone of personnel, and meanwhile, the air supply outlets on one side or two sides can be opened as required to reduce dead angles and realize accurate air supply. The inside purification module such as multiple filtration of installing of this fresh air purification machine, disinfecting can effectively purify to the harmful substance of different grade type, ensures the clean degree of outdoor new trend of introducing and indoor return air that flows back, makes its be applicable to in different air pollution's the environment, accomplishes a tractor serves several purposes.
Drawings
Fig. 1 is the utility model provides a pair of multifunctional fresh air purifier's schematic structure.
Fig. 2 is a detailed view of the section of the internal motor and the proportional air valve of the multifunctional fresh air purifier.
The parts in the figure represent: 1-outdoor air inlet; 2-primary filter screen; 3-medium effect filter screen; 4-an electric heater; 5-indoor air outlet; 6-a heat exchanger; 7-an exhaust fan; 8-outdoor air outlet; 9-indoor air inlet; 10-a motor; 11-proportional air valve; 12-a blower; 13-high-efficiency filter screen; 14-a body shell; 15-indoor air supply outlet; 16-a sterilization module; 17-a control module; 18-a data transmission module; 19-an indoor sensor module; 20-an outdoor sensor module; 21-a first chamber; 22-a second chamber; 23-a third chamber; 24-a fourth chamber; 25-a fifth chamber; 26-a sixth chamber; 27-a seventh chamber; 28-eighth chamber; 29-a control panel; 10-1-a motor body; 10-2-adjusting rod; 11-1-front rail; 11-2-rear guide rail; 11-3-left bounding box; 11-4-right bounding box; 11-5-valve plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Fig. 1 is a multifunctional fresh air purifier provided by an embodiment of the present invention, which includes a machine body shell 14, an outdoor air inlet 1, an indoor air outlet 5, an indoor air return 9, an outdoor air outlet 8 and an indoor air supply outlet 15 which are located on a side wall of the machine body shell 14, and an electric heater 4, a heat exchanger 6, an exhaust fan 7, a motor 10, a proportional air valve 11, a blower 12, a sterilization module 16, a multi-effect filter screen, a control module 17, a data transmission module 18, an indoor sensor module 19 and an outdoor sensor module 20 which are located in the machine body shell 14, wherein an embedded control panel 29 is arranged on a side wall of the machine body shell 14; different chambers (such as spaces shown by reference numbers 21-28 in fig. 1) are formed in the machine body shell 14 through a plurality of partition plates. The outdoor air inlet 1, the first cavity 21, the second cavity 22, the first channel of the heat exchanger 6, the third cavity 23, the proportional air valve 11, the fourth cavity 24, the fifth cavity 25 and the indoor air supply outlet 15 are sequentially communicated to form an outdoor-to-indoor air flow passage, the indoor air outlet 5, the sixth cavity 26, the second channel of the heat exchanger 6, the seventh cavity 27 and the outdoor air outlet 8 are sequentially communicated to form an indoor-to-outdoor air flow passage, and the indoor air return inlet 9, the eighth cavity 28, the proportional air valve 11, the fourth cavity 24, the fifth cavity 25 and the indoor air supply outlet 15 are sequentially communicated to form an indoor-to-indoor air flow passage. Primary filter screen 2, medium efficiency filter screen 3 and outdoor sensor module 20 are located first cavity 21, and electric heater 4 is located second cavity 22 and is close to heat exchanger 6 one side, and exhaust fan 7 and forced draught blower 12 are located seventh cavity 27 and fourth cavity 24 respectively, and fourth cavity 24 is as mixing the wind chamber, and high efficiency filter screen 13 and sterilization module 16 all are located fifth cavity 25 and both are close to the setting. The proportional air valve 11 is driven by a motor 10, and the opening and closing of the proportional air valve 11 are controlled by the motor 10 to control the air flow areas on two sides of the proportional air valve 11 so as to adjust the air volume of the outdoor air flow channel to the indoor air flow channel and the air volume of the indoor air flow channel to the indoor air flow channel. The indoor sensor module 19 and the outdoor sensor module 20 are respectively installed at the indoor air return opening 9 and the outdoor air inlet 1, and are respectively used for collecting indoor and outdoor air parameters. The exhaust fan 7, the blower 12, the electric heater 4, the motor 10, the sterilization module 16, the data transmission module 18, the indoor sensor module 19, the outdoor sensor module 20 and the control panel 29 are all in wired connection with the control module 17; the data transmission module 18 is connected with a mobile terminal (such as a mobile phone or a tablet computer) through wireless transmission. The control module 17, the data transmission module 18 and the control panel 29 are connected to share an external power socket, and are directly connected with a household power supply through a connecting wire, so that the power supply can be realized.
The utility model discloses but multi-functional fresh air purification machine is vertical falls to the ground the installation, needs to notice each wind gap and can not shelter from, and wherein outdoor air exit 8 and outdoor air intake 1 can adopt external tuber pipe and outdoor continuous. The specific implementation modes, i.e. functions, of the components are respectively described as follows:
the main function of the engine body shell 14 is to stably support each component therein, and the embodiment adopts sheet metal parts, and the overall height of the engine body shell 14 is about 1.8m, the width is about 0.6m, and the thickness is about 0.5 m. Partitions within the body shell 14 serve as partitions to form air flow passages.
The primary filter screen 2 and the intermediate filter screen 3 are installed in the first chamber 21 and used for filtering particle dust and various suspended matters with the particle size larger than 1-5 mu m, so that the cleanliness of air entering a rear flow passage is improved. The high-efficiency filter screen 13 and the sterilization module 16 are both arranged in the fifth chamber 25 and are arranged close to each other, wherein the high-efficiency filter screen 13 filters particle dust and various suspended matters below 0.5 mu m; the sterilization module 16 can be an ultraviolet lamp, an ozone generator, a light plasma and the like, is used for killing harmful microorganisms attached to the high-efficiency filter screen 13, and determines the starting frequency and the time interval of the sterilization module 16 through the control module 17 according to the actual operation environment of the unit, so that the purposes of sterilization and disinfection are achieved. High-efficient filter screen 13 is located fifth cavity 25, is the setting of V style of calligraphy, and the open end towards fourth cavity 24 to reduce new fan overall height, increase filter area, promote whole utilization effect. The utility model discloses primary filter screen 2, medium efficiency filter screen 3 and high efficiency filter screen 13 of embodiment adopt the product that accords with national standard GB/T14295-93 "air cleaner" and GB13554-92 "high efficiency air cleaner" regulation respectively, and thickness all is about 5 cm.
Further, a noise elimination and reduction structure, such as a noise elimination plenum box, is provided at the indoor air supply outlet 15.
The electric heater 4 is located in the second chamber 22 and can be used for heating outdoor air, so that on one hand, the comfort level of the air fed into the room can be improved, and on the other hand, the phenomenon of condensation or frost formation inside the heat exchanger 6 can be avoided. The electric heater 4 is controlled to be started and stopped by the proportional air valve 11 and the control module 17 according to the existence of fresh air entering, the outdoor air temperature and the indoor relative humidity. The electric heating tube with 300W power meeting the national product safety standard is adopted in the embodiment.
The heat exchanger 6 is located in a space formed by the second chamber 22, the sixth chamber 26, the third chamber 23 and the seventh chamber 27, and can be a total heat exchanger or a sensible heat exchanger for heat exchange between indoor exhaust air and outdoor fresh air so as to recover heat and achieve the purpose of saving energy. The heat exchanger of this embodiment adopts the heat exchange core that multilayer miniature runner vertical layering stack formed, and the core does not have moving part, and is removable.
Referring to fig. 2, the proportional air valve 11 comprises a front guide rail 11-1, a rear guide rail 11-2, a left limiting frame 11-3, a right limiting frame 11-4 and a valve plate 11-5, wherein the front guide rail and the rear guide rail (11-1 and 11-2) and the left and right limiting frames (11-3 and 11-4) are connected end to form a hollow cuboid frame; the motor 10 comprises a motor body 10-1 and an adjusting rod 10-2; the motor body 10-1 drives the valve plate 11-5 to repeatedly slide on the front guide rail (11-1) and the rear guide rail (11-2) through the adjusting rod 10-2 and is positioned between the left limiting frame (11-3) and the right limiting frame (11-4); when the valve plate 11-5 moves to the leftmost end and is tightly embedded with the left limiting frame 11-3, the air flow area from the indoor to the indoor air flow channel is the largest, and the air flow area from the outdoor to the indoor air flow channel is 0; when the valve plate 11-5 moves to the rightmost end and is tightly embedded with the right limiting frame 11-4, the air flow area from the indoor to the indoor air flow passage is 0, and the air flow area from the outdoor to the indoor air flow passage is the largest. The motor body 10-1 is controlled by the control module 17. In this embodiment, the proportional air valve 11 is installed on the partition between the third chamber 23 and the fourth chamber 24 and between the eighth chamber 28 and the fourth chamber 24, the motor body 10-1 is located on the partition on one side of the proportional air valve 11, the motor body 10-1 adopts a low-power motor such as a stepping motor or a dc brushless motor, and the stepping motor drives the valve plate 11-5 to move back and forth, so as to control the air flow area from the outdoor to the indoor air flow passage and from the indoor to the indoor air flow passage.
The exhaust fan 7 is located in the seventh chamber 27 and is used for providing the circulation driving force for indoor exhaust from indoor to outdoor, the rotating speed is adjustable, and communication can be adopted. The blower 12 is located in the fourth chamber 24 and is used for providing fresh air, circulating driving force for returning indoor return air to the indoor air supply outlet, and appropriate air pressure of about 20Pa (which can be adjusted as required) for the indoor air supply outlet 15 so as to ensure air supply distance.
The indoor sensor module 19 is positioned in an eighth chamber 28 communicated with the indoor air return opening 9 and comprises an indoor temperature sensor, an indoor humidity sensor and indoor PM2.5Sensor, indoor CO2Sensors and indoor TVOC (Total Volatile Organic Compounds) concentration sensors; the indoor sensor module 19 is connected with the control module 17, and when receiving the acquisition signal of the control module 17, the indoor sensor module 19 acquires indoor temperature, indoor humidity and indoor PM2.5Concentration, indoor CO2Concentration and total volatile organic concentration in the room, and transmits the collected data to the control module 17. The outdoor sensor module 20 is positioned in a first chamber 21 communicated with the outdoor air inlet 1 and comprises outdoor PM2.5A sensor, an outdoor temperature sensor and an outdoor humidity sensor; the outdoor sensor module 20 is connected with the control module 17 and is controlled by the control module to collect outdoor temperature, outdoor humidity and outdoor PM2.5Concentration and transmits the collected data to the control module 17.
The control panel 29 is a touch screen type control panel, and can display indoor and outdoor air parameters, equipment operation parameters, operation mode selection, parameter setting and the like.
The control module 17 has functions of data analysis, instruction transmission, remote instruction or wired instruction reception and the like, and the main body of the control module is a PC control board which can be used for inputting and updating an import transmission program and is powered by an external power supply. The control module 17 is provided with a plurality of use scene default modes set according to the use region and the use room function, including: the quality of the positive pressure air is generally required (such as common residence or office), and the quality of the positive pressure air is higherRequirements (e.g., baby room), general negative pressure air quality requirements (e.g., general laboratories with smaller pollution sources), and higher negative pressure air quality requirements (e.g., space where pathogen pollution sources emanate). The user or the installation and maintenance personnel can select one of the set modes according to the requirement. The control module can continuously perform self-optimization according to the operation condition in the operation process of the fresh air purifier (the actual operation effect is inconsistent with the expectation, the operation condition is judged to be inconsistent with the preset condition, namely the default preset parameter is not optimal, and then corresponding adjustment is performed, for example, indoor carbon dioxide is taken as the indoor carbon dioxide, if the indoor carbon dioxide is operated for a period of time according to the set parameter, the concentration of the indoor carbon dioxide is stable but does not reach the expectation, if the indoor carbon dioxide is higher than the expectation, the ratio S of the area of an outdoor-to-indoor air flow channel of the proportional air valve 11 to the area of an indoor-to-indoor air flow channel is adjusted, and then the fresh air-return ratio is increased), or the default mode of. Each usage scene default mode respectively comprises corresponding preset parameters: outdoor temperature default value Tw,0And a default value of outdoor humidity Hw,0Outdoor PM2.5Default value Pw,0Desired value T of indoor temperaturei,0Desired indoor humidity Hi,0Indoor PM2.5Expected value Pi,0Indoor CO2Expected value Ci,0Indoor TVOC expected value Vi,0(ii) a The control module 17 is also provided with a default mode of the sterilization module 16: intermittent operation or timing operation (the interval time is adjustable), and proper parameters are recommended according to the use occasions. Specifically, the electric heater 4 is activated and the outdoor air temperature is defaulted to a value T in the northern winter periodw,0Below 0 deg.C, default value of humidity of outdoor air Hw,070% of indoor temperature desired value Ti,0At 16-26 ℃ and indoor PM2.5Expected value Pi,0Is 50-100 ug/m3Indoor CO2Expected value Ci,0400 to 800 ppm. For another example, the setting of the scene mode can be divided into a normal period operation mode and a virus epidemic period emergency operation mode; in the normal period operation mode, the sterilization module 16 is operated at intervals, the interval time is 1h, and the fresh air volume is 20-30 m3V (h. human); isolation of rooms during new coronavirus-like virus epidemicsThe high requirement mode can be selected, namely the sterilization module 16 selects the continuous operation mode and the full fresh air mode is operated, and the fresh air quantity is 3 times of that in the normal mode, namely 60-90 m3V. (h. human). Mode selection and parameter setting may be performed by a user or installation and maintenance personnel. The control module 17 combines the preset parameters and corresponding detection values (including outdoor temperature value T) acquired by the sensor module in real timewOutdoor humidity value HwOutdoor PM2.5Value PwIndoor temperature value TiIndoor humidity value HiIndoor PM2.5Value PiIndoor CO2Value CiAnd indoor TVOC value Vi) In comparison, the air volume of the blower 12 and the air exhausting fan 7, the opening of the electric heater 4, the running steps of the motor 10 and the start and stop of the sterilizing module 16 are controlled.
The data transmission module 18 and the control module 17 are arranged in a cavity formed by mixing fresh air and indoor return air, namely a fourth cavity 24, so that space is reasonably utilized, and outer side plates of the data transmission module 18 and the control module 17 can be opened so as to be convenient to maintain.
The utility model discloses a multi-functional new trend clearing machine has three kinds of mode: pure new trend mode, pure indoor purification mode and new trend and indoor purification mixed mode, describe respectively as follows to each mode of operation after the switch on:
(1) pure fresh air mode: the control module 17 judges that the ratio S of the outdoor-to-indoor air flow passage area and the indoor-to-indoor air flow passage area of the proportional air valve 11 is 100% according to preset parameters in the proportional air valve and the acquired corresponding detection values: 0, or when the user selects a pure fresh air mode (namely S is 100%: 0), after the unit starts to operate, under the suction action of the blower 12, air flows from the outdoor to the indoor air channel, specifically, outdoor air firstly enters from an outdoor air inlet 1 and then respectively flows through the primary filter screen 2 and the intermediate filter screen 3, wherein particle dust and various suspended matters with the particle size of more than 1-5 mu m are filtered out, and when the outdoor air temperature is lower in winter, the outdoor air is heated by the electric heater 4; the outdoor air flows through the left channel (used for circulating outdoor air) of the heat exchanger 6 to mutually transfer heat with the right channel (used for circulating indoor air) of the heat exchanger 6; if the unit operates in the pure fresh air mode, the ventilation area of the proportional air valve 11 is completely distributed to the outdoor fresh air side, and then the outdoor air continuously flows through the air mixing cavity where the blower 12 is located, and then is filtered by the high-efficiency filter screen 13 to remove particle dust and various suspended matters below 0.5 mu m to become clean air, and then is sent to the indoor through the indoor air supply outlet 15.
(2) Pure indoor purification mode: the control module 17 judges that the S value of the proportional air valve 11 should be 0 according to preset parameters in the control module and the acquired corresponding detection values: 100% or when the user selects the pure indoor purification mode (i.e. S is 100%: 0), after the unit starts to operate, the ventilation area of the proportional air valve 11 is fully allocated to the indoor return air side, the outdoor air flow rate is reduced to 0, the indoor air enters the air mixing cavity where the blower 12 is located through the second indoor air inlet 9 and the indoor air side of the proportional air valve 11, and is changed into clean air through the high-efficiency filter screen 13, and then is sent to the indoor through the indoor air supply outlet 15.
(3) Fresh air and indoor purification mixed mode: the control module 17 judges that the S value of the proportional air valve 11 is not 100% according to preset parameters in the control module and the acquired corresponding detection values: 0 and not 0: when the air-conditioning unit is 100% or the mixed mode of fresh air and indoor purification is selected by user operation, after the unit starts to operate, the ventilation area of the proportional air valve 11 is distributed to the indoor air return side and the outdoor air fresh side according to the proportion judged by the control module 17, the outdoor air sequentially passes through the outdoor air inlet 1, the primary filter screen 2, the intermediate filter screen 3 and the electric heater 4 (the electric heater is opened according to the situation, see the pure fresh air mode), the first channel of the heat exchanger 6 and the outdoor fresh air side of the proportional air valve 11 pass through the air mixing cavity where the air blower 12 is positioned, are mixed with the indoor return air which sequentially passes through the indoor air return port 9 and the indoor air side of the proportional air valve 11, and are changed into clean air through the efficient filter screen 13 and then are sent to the indoor through the indoor air supply.
In addition, when the unit operates in a pure fresh air mode or a fresh air and indoor purification mixed mode, air flow is also formed from indoor to outdoor air channels under the action of the suction force of the exhaust fan 7, indoor air firstly enters from the indoor exhaust outlet 5 and then flows through the heat exchanger 6 to form mutual heat transfer, and energy recovery is realized; the indoor air continues to flow through the exhaust fan 7 and the outdoor exhaust outlet 8 to enter the outdoor. In this case, the air volume of the exhaust fan 7 needs to be determined comprehensively according to the positive or negative pressure state to be ensured indoors and the air volume of the blower 12.
The present invention has been described in detail with reference to the preferred embodiments, and it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020313637.7U CN212431159U (en) | 2020-03-13 | 2020-03-13 | A multifunctional fresh air purifier |
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| CN202020313637.7U CN212431159U (en) | 2020-03-13 | 2020-03-13 | A multifunctional fresh air purifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288583A (en) * | 2020-03-13 | 2020-06-16 | 清华大学 | Multifunctional fresh air purifier and operation control method |
| CN113669866A (en) * | 2021-08-20 | 2021-11-19 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
-
2020
- 2020-03-13 CN CN202020313637.7U patent/CN212431159U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111288583A (en) * | 2020-03-13 | 2020-06-16 | 清华大学 | Multifunctional fresh air purifier and operation control method |
| CN111288583B (en) * | 2020-03-13 | 2024-05-28 | 清华大学 | Multifunctional fresh air purifier and operation control method |
| CN113669866A (en) * | 2021-08-20 | 2021-11-19 | 珠海格力电器股份有限公司 | Control method of air conditioner and air conditioner |
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