CN107202396B - Dual cycle formula new trend system and new fan - Google Patents
Dual cycle formula new trend system and new fan Download PDFInfo
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- CN107202396B CN107202396B CN201710193421.4A CN201710193421A CN107202396B CN 107202396 B CN107202396 B CN 107202396B CN 201710193421 A CN201710193421 A CN 201710193421A CN 107202396 B CN107202396 B CN 107202396B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/0001—Control or safety arrangements for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
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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)
- Ventilation (AREA)
- Air-Conditioning Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention relates to a double-circulation fresh air system, which is provided with a first air channel for sucking and purifying outdoor air and then discharging the outdoor air to the indoor, a second air channel for discharging indoor air to the outdoor space and a third air channel for sucking and purifying the indoor air and then discharging the indoor air to the indoor. The first air duct and the second air duct can work simultaneously, the first air duct and the third air duct can work simultaneously, and indoor micro-positive pressure can be maintained under the two working modes. The fresh air system can prevent outdoor air from entering the room without being filtered by maintaining indoor micro-positive pressure in different working modes. The invention further provides a new fan.
Description
Technical Field
The invention relates to air purification equipment, in particular to a double-circulation fresh air system and a fresh air machine.
Background
At present, the quality of urban outdoor air is lower, the urban outdoor air is influenced by decoration, furniture and household chemical products, the quality of indoor air is poorer, the content of oxygen, particularly negative oxygen ions, is very low, and the concentration of some harmful gases indoors is far higher than outdoors. The air quality is severely reduced, and the polluted air not only spreads diseases, but also can make people in sub-health state. From a practical point of view, the PM2.5 standard in the room is sometimes not inferior to that in the outdoor. The indoor PM2.5 mainly comes from the following aspects: firstly, a decoration material; secondly, human breath and smoke; thirdly, microorganisms, viruses and bacteria; fourthly, kitchen oil smoke; fifthly, air conditioning is integrated. The pollutants enter the human body along with respiration, and are accumulated for a long time, so that the health of people is seriously harmed. Due to the influence of outdoor air, a simple ventilation system may bring a large amount of outdoor dust entrained in the outdoor air into the room, thereby exacerbating the indoor air pollution. Air purification in large offices, entertainment, shopping, meetings, teaching and the like, as well as under home conditions, is becoming very important.
The common air purification equipment on the market at present generally comprises an air purifier and a fresh air machine. Specifically, the air purifier operates by mechanically sucking air into the equipment through an air inlet, filtering, adsorbing, decomposing or the like through a filter or other type of purification module installed inside the equipment to remove part or most of pollutants, such as particulate matters, volatile organic compounds and the like, from the air sucked into the equipment, and then releasing the pollutants into the space through an air outlet. Since ventilation introduces contaminants such as PM2.5 in outdoor air, air purifiers are generally required to be used in relatively closed environments such as rooms with closed doors and windows.
Unlike the air purifier, the fresh air machine can introduce outdoor air into the room mechanically to dilute pollutants such as VOC (volatile organic compounds) and carbon dioxide generated by human body. In order to avoid PM2.5 contained in outdoor air, a filter screen is additionally arranged on some fresh air fans at present, so the fresh air fans are also called as fresh air purifiers.
In view of the different advantages of both the air cleaner and the fresh air fan, there are also some air cleaning apparatuses that integrate the two devices into one device and are installed indoors in a wall-mounted manner. This kind of equipment is called wall-hanging fresh air purification machine, and it can introduce new trend, can also make the room air carry out the inner loop simultaneously. The function is derived from a special structure, two sets of independent air purification systems are usually used in the air purifier to respectively process fresh air and internal circulation, and the proportion of the fresh air and the internal circulation is adjusted by setting different air volumes of the two sets of systems.
However, because two sets of independent air purification systems are used in the structure of the wall-mounted fresh air purifier at present, the manufacturing cost is relatively high, the maintenance and replacement processes of the equipment are relatively complicated, and the popularization degree of the equipment is relatively low. In addition, because two sets of air purification systems used in the air purification system are relatively independent, the air purification system also needs to be integrated and adjusted by means of control equipment when the proportion of the fresh air volume and the internal circulation air volume is adjusted in the using process of the equipment, the adjusting process is relatively complex, and the adjusting accuracy is difficult to guarantee.
In addition, when the existing wall-mounted fresh air blower is used, the indoor air pressure cannot be maintained to be always slightly positive relative to the outdoor air pressure, so that unfiltered outdoor air can enter the room through a window gap, and the quality of the indoor air is affected.
In summary, how to provide a fresh air purifier which has a good use effect, occupies a small space, is convenient to use and replace, and can effectively regulate indoor air becomes a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a double-circulation fresh air system by overcoming the defects in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
a double-circulation fresh air system can maintain indoor air pressure greater than outdoor air pressure to generate micro-positive pressure and comprises a control unit and an air purification unit; the air purification unit includes: the first air duct is used for sucking and purifying outdoor air and then discharging the purified outdoor air to the indoor space; a second duct for discharging indoor air to an outdoor space; a third air duct for sucking and purifying indoor air and discharging the purified indoor air to the indoor; the first air duct and the second air duct are arranged in a crossed manner, and a cold-heat exchanger is arranged at the crossed position; the control unit comprises a fresh air purification module and an indoor purification module, and the fresh air purification module is used for controlling the first air channel and the second air channel to operate simultaneously so as to discharge indoor air while introducing outdoor air and maintain micro-positive pressure; the indoor purification module is used for controlling the first air channel and the third air channel to operate simultaneously so as to rapidly purify indoor air and introduce outdoor air to maintain micro-positive pressure; the ventilation volume in the first air flue is greater than the ventilation volume in the second air flue, and the ventilation volume in the third air flue is greater than the ventilation volume in the first air flue.
The fresh air system of the present invention can be further optimized in the following manner.
In one embodiment, a first fan is arranged on the first air duct, a second fan is arranged on the second air duct, and the first fan and the second fan are respectively electrically connected with the control unit and controlled to operate; when the fresh air purification module operates, the control unit controls the first fan and the second fan to work simultaneously, and the working power of the first fan is greater than that of the second fan; when the indoor purification module operates, the control unit controls the first fan to work and controls the second fan to stop working.
In one embodiment, the operating power of the first fan is 1.2-2.0 times of the operating power of the second fan.
In an embodiment, the first air duct and the air outlet section of the third air duct are overlapped, and the first fan is located on the air outlet section; the second air duct is superposed with the air inlet section of the third air duct, and the second fan is positioned on the air inlet section; the third air duct is provided with a first air valve electrically connected with the control unit and used for switching on or switching off the air inlet section and the air outlet section; when the fresh air purification module operates, the control unit controls the first air valve to be in a closed state; when the indoor purification module operates, the control unit controls the first air valve to be in an open state.
In one embodiment, the first air valve is positioned at the side of the cold-heat exchanger and is arranged adjacently, and meanwhile, the first air valve is positioned between the first fan and the second fan; the cold-heat exchanger is arranged on the air inlet side of the first fan and is positioned on the air outlet side of the second fan.
In one embodiment, the first air duct has a first air filter at a position before the outdoor air flows into the heat exchanger, and has a second air filter at the air-out side of the first fan, while having a third air filter at the air-in side of the second fan in the second air duct.
In one embodiment, the air outlet of the second channel is provided with a second air valve for cutting off the communication between the air outlet of the second channel and the outdoor space, and the second air valve is a non-return air valve; when the air exhaust air valve works, the air can be driven to flow so as to open the second air valve.
In one embodiment, the fresh air system includes an air quality sensor located on the first air duct, the second air duct, or the third air duct, and the air quality sensor is electrically connected to the control unit.
The invention also provides a fresh air fan which is integrally in a flat cuboid shape, the fresh air fan is provided with any one of the fresh air systems, the fresh air fan is further provided with an installation structure for horizontally arranging the fresh air fan in the thickness direction or vertically arranging the fresh air fan in the width direction, the back of the fresh air fan is provided with a pair of air inlet holes and air outlet holes which are used for communicating the indoor space and the outdoor space when the fresh air fan is horizontally arranged, and the side surface of the fresh air fan is also provided with a pair of air inlet holes and air outlet holes which are used for communicating the indoor space and the outdoor space when the fresh air fan is vertically arranged.
By adopting the technical scheme, the invention has the following technical effects:
1. the fresh air system is provided with three air channels for respectively purifying fresh air and indoor air introduced outdoors, wherein the first air channel and the second air channel can synchronously run, the ventilation volume in the first air channel is greater than that in the second air channel so as to maintain indoor micro-positive pressure, the first air channel and the third air channel can synchronously run, and the ventilation volume in the third air channel is greater than that in the first air channel so as to maintain indoor micro-positive pressure when the indoor air is rapidly purified. By maintaining the indoor micro-positive pressure in different operating modes, the situation that outdoor air enters the room without being filtered can be avoided.
2. The third air duct of the invention is respectively superposed with the first air duct and the second air duct, namely the third air duct is actually formed by the first air duct and the second air duct, the first fan is positioned at the superposed position of the first air duct and the third air duct, and the second fan is positioned at the superposed position of the second air duct and the third air duct, therefore, the three air ducts of the invention have reasonable layout, compact structure and higher purification efficiency. In addition, the first air valve is arranged in the third air duct, when the first air duct and the second air duct operate, the first air valve is closed, when the first air valve is opened, the second air duct is closed, and the first air duct and the third air duct operate, so that the indoor air purification efficiency is obviously improved, and meanwhile, the first air valve is arranged on the side of the cold-heat exchange device, so that the structure is more compact.
3. According to the invention, the relative positions of the first fan and the second fan relative to the first filter, the second filter and the third filter are configured, so that air is filtered by the filters before flowing into the fans, and the service life of the fans can be further prolonged.
4. The power of the first fan is 1.2-2.0 times of the power of the second fan, so that the proportion between fresh air introduced from the outdoor and exhausted indoor air is adjusted, the indoor air is always kept at positive pressure, and outdoor air is prevented from entering the indoor space from a window gap and the like without being filtered.
Drawings
Fig. 1 and 2 show the explosion diagrams of the fresh air machine of the present invention at different viewing angles.
FIG. 3 is a schematic view of the cover plate of the fresh air machine of the present invention.
FIG. 4 is a schematic view of the rear side of the new wind turbine of the present invention.
FIG. 5 is a front view of the housing of the new fan of the present invention.
FIG. 6 is a schematic diagram of the fresh air machine of the present invention operating in a fresh air purification mode.
Fig. 7 is a schematic diagram illustrating the operation of the fresh air machine in the indoor fast cleaning mode according to the present invention.
Fig. 8 shows a front view of the first air valve 8 of the present invention.
Fig. 9 shows an exploded view of the first air valve 8 of the present invention.
Fig. 10 is an exploded view of the first air valve 8 of the present invention with the first and second housings omitted.
Reference symbols of the drawings
1. A cover plate; 1A, a control unit; 2. a splint; 2A, a through hole; 3. a housing; 3A, air inlet holes; 3B, air outlet holes; 3C, an air inlet; 3D, air outlet; 4. a first fan; 5. a second fan; 6. a cold-heat exchanger; 7. a second air valve; 8. a first air valve; 9. a first air filter; 10. a second air filter; 11. a third air filter; 12 an air quality sensor; 13. mounting a plate; 13A/13B, through holes; 14. a first mounting structure; 14A, a clamping piece; 14B and a clamping groove.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 6, the fresh air machine and the fresh air system thereof are arranged in the fresh air machine. The compact fresh air system comprises a control unit 1A and an air purification unit, wherein the air purification unit comprises a first air channel and is used for sucking and purifying outdoor air and then discharging the purified outdoor air to the indoor; a second duct for discharging indoor air to an outdoor space; a third air duct for sucking and purifying indoor air and discharging the purified indoor air to the indoor; the first air duct and the second air duct are arranged in a crossed manner, and a cold-heat exchanger 6 for exchanging energy between inflowing outdoor air and outflowing indoor air to reduce indoor energy loss is arranged at the crossed position; the control unit 1A comprises a fresh air purification module and an indoor purification module, wherein the fresh air purification module is used for controlling the first air channel and the second air channel to operate simultaneously so as to discharge indoor air while introducing outdoor air and maintain micro-positive pressure; the indoor purification module is used for controlling the first air channel and the third air channel to operate simultaneously so as to rapidly purify indoor air and introduce outdoor air to maintain micro-positive pressure; the ventilation volume in the first air channel is greater than that in the second air channel, and the ventilation volume in the third air channel is greater than that in the first air channel.
A first fan 4 is arranged on the first air channel, a second fan 5 is arranged on the second air channel, and the first fan 4 and the second fan 5 are respectively electrically connected with the control unit 1A and controlled to operate; when the fresh air purification module operates, the control unit 1A controls the first fan 4 and the second fan 5 to work simultaneously, and the working power of the first fan 4 is greater than that of the second fan 5; when the indoor purification module operates, the control unit 1A controls the first fan 4 to operate and controls the second fan 5 to stop operating. Preferably, the operating power of the first fan is 1.2-2.0 times, for example, 1.5 times or 1.7 times of the operating power of the second fan. The fresh air purification module and the indoor purification module cannot work simultaneously.
The first duct is used to suck outdoor air into the indoor space and perform air purification, and its path is substantially as shown by a dotted line a1 in conjunction with fig. 2 and 6. Specifically, the first air filter 9 is located at a position of the first duct before the outdoor air flows into the heat exchanger 6 to pre-filter the outdoor air flowing into the heat exchanger 6; the second air filter 10 is located on the air outlet side of the first fan 4 and close to the inner side of the air outlet 3D to filter the outdoor air flowing out of the first fan 4. Outdoor air can enter the inside of the cabinet 3 through the inlet hole 3A, filtered by the first air filter 9, passed through the heat and cold exchanger 6 and the first fan 4, and further filtered by the second air filter 10 to enter the room. Wherein the first air filter 9 may be a coarse filter which filters larger particle size substances but not smaller particle size substances in the air, and the second air filter 10 may be a high efficiency filter which filters smaller particle size substances. If only one set of filters is adopted, in order to ensure the specific same filtering effect under different outdoor weather conditions, the high-efficiency filters are adopted in the set of filters, and the scheme causes the frequent replacement of the filters by a user, thereby increasing the use cost. This scheme has different filter effects through adopting two sets of filters and each filter, can be so that the overall configuration of new trend system can be for reasonable, reduces user use cost.
A second duct for discharging the indoor air to the outdoor space, the path of which is substantially as shown by a dotted line a2 in conjunction with fig. 2 and 6. Specifically, the second duct is provided with a second air flap 7 for blocking communication with the outdoor space, and the second air flap 7 is a return air flap. When the indoor purification module operates, the control unit 1A controls the second fan 5 to stop working, and air does not flow along the second air duct, so that the air does not push the second air valve 7 to move, the second air duct is isolated from the outdoor space, and the second air valve 7 is in a closed state, so that the essence efficiency of reducing indoor air by sucking air from the outdoor space can be prevented. The third air filter 11 is located at the air intake side of the second fan 5 and is adjacent to the inner side of the air intake 3C to pre-filter the indoor air flowing into the second fan 5. When the fresh air purification module operates, the control unit 1A controls the second fan 5 to work, and then the air flows and pushes the second air valve 7 to move, the second air duct is communicated with the outdoor space, the indoor air can enter the inside of the casing 3 through the air inlet 3C, and after being filtered by the third air filter 11, the indoor air is discharged to the outdoor space through the air outlet 3B after passing through the second fan 5 and the cold-heat exchanger 6.
And a third duct for sucking and purifying the indoor air and discharging the indoor air to the indoor space, i.e., for internal circulation of the indoor air, the path of which is substantially shown by a dotted line a3 in conjunction with fig. 2 and 7. The first air duct and the air outlet section of the third air duct are overlapped, and the first fan 4 is positioned on the air outlet section; the second air duct is superposed with the air inlet section of the third air duct, and the second fan 5 is positioned on the air inlet section; and a first air valve 8 electrically connected with the control unit 1A is arranged on the third air channel and used for switching on or switching off the air inlet section and the air outlet section of the third air channel. When the fresh air purification module operates, the control unit 1A controls the first air valve 8 to be in a closed state, and the ventilation volume of the first channel is greater than that of the second channel; when the indoor purification module operates, the control unit 1A controls the first air valve 8 to be in an open state, and the ventilation volume of the third channel is greater than that of the first channel. Meanwhile, the third air duct and the second air duct share the air inlet 3C, and the third air duct and the first air duct share the air outlet 3D. Through the structural design, the whole structure of the fresh air system is compact. When the first air valve 8 is opened, room air can enter the interior of the machine shell 3 through the air inlet 3C, is filtered by the third air filter 11, sequentially passes through the first air valve 8, the first fan 4 and the second air filter 10, and then enters the room from the air outlet 3D. The third air duct uses the second air filter 10 of the first air duct and the third air filter 11 of the second air duct, which both achieve rapid filtration of air circulating indoors. The first air valve 8 is positioned at the side of the cold-heat exchanger 6 and is arranged adjacent to the cold-heat exchanger, and meanwhile, the first air valve 8 is positioned between the first fan 4 and the second fan 5; the cold-heat exchanger 6 is arranged on the air inlet side of the first fan 4 and on the air outlet side of the second fan 5.
The first air duct has a first air filter 9 at a position before the outdoor air flows into the heat and cold exchanger 6, and has a second air filter 10 on the air-out side of the first fan, while having a third air filter 11 on the air-in side of the second fan 5 in the second air duct.
In other embodiments, the control unit further includes an exchanger protection module that controls the second air duct to operate alone to dehumidify and defrost the cold heat exchanger 6. Specifically, when the second air passage is operated alone and the first air passage is stopped, only the indoor air is sucked and discharged to the outside, and frost and moisture on the heat exchanger 6 can be removed because the indoor air is dry and has a high temperature.
The fresh air fan of the invention is approximately in a flat cuboid shape and comprises a cover plate 1, a clamping plate 2 and a casing 3. The front side of the housing 3 has openings facing the cover plate 1 and the clamping plate 2, the clamping plate 2 and the cover plate 1 in turn covering the front side of the housing 3. A first fan 4, a second fan 5, a heat exchanger 6, a first damper 8, a second damper 7, a first air cleaner 9, a second air cleaner 10, a third air cleaner 11, and an air quality sensor 12 are disposed inside the cabinet 3. The rear side of the housing 3 may also be provided with a mounting plate 13 and the back of the fresh air fan may also have a plurality of first mounting structures 14.
Referring to fig. 1 and 2, the cover plate 1 has a substantially rectangular shape, a size substantially corresponding to the size of the front side of the cabinet 3, and a control unit 1A is disposed thereon. The control unit 1A may include an input unit for user operation and a display device for displaying the current working state of the fresh air system, and the input unit may be a touch input unit or a key input unit. For the sake of clarity, the drawings of the present invention omit the electrical connection lines for electrically connecting the control unit 1A and the first and second fans 4 and 5, the first air valve 8, the air quality sensor 12, and the like.
Referring to fig. 1 and 3, the clamp plate 2 is covered on the front side of the cabinet 3 and has a size approximately corresponding to the size of the opening of the front side of the cabinet 3, and the clamp plate 2 is provided with a through hole 2A corresponding to the position of the heat exchanger 6, and the size of the through hole 2A is matched with the size of the outer surface of the heat exchanger 6, so that when the user needs to replace the heat exchanger 6, the heat exchanger 6 can be taken out through the through hole 2A without removing the clamp plate 2.
Referring to fig. 2 and 5, an air inlet hole 3A through which outdoor air flows into the interior of the casing 3 and an air outlet hole 3B through which air inside the casing 3 flows out to the outside are formed in the right side and the back of the casing 3, and a user can select the air inlet hole 3A and the air outlet hole 3B to be used according to an installation environment. The lower side of the casing 3 is formed with an air inlet 3C for the indoor air to flow into the casing 3, and the upper side of the casing 3 is formed with an air outlet 3D for the air in the casing 3 to flow out to the indoor. The second air valve 7 is disposed at the position of the air outlet 3B, and the size of the second air valve is matched with that of the air outlet 3B to control the opening and closing of the air outlet 3B. In this embodiment, the air inlet 3A and the air outlet 3B are circular to be adapted to a common cylindrical air guiding duct. The air inlet 3C and the air outlet 3D are provided with grid structures, so that foreign matters are prevented from entering the interior of the machine shell 3, the use safety of a user is ensured, and the grid structures can be detachably connected with the machine shell 3. In this embodiment, the bottom surface of the housing 3 is further provided with a through hole 3E and a through hole 3F, an air quality sensor 12 is further disposed inside the housing 3 at the position of the through hole 3E, and the air quality sensor 12 can detect the quality of the unfiltered indoor air entering through the through hole 3E and the through hole 3F, for example, the air quality sensor 12 can detect the content of PM2.5 in the air entering through the through hole 3E and the content of carbon dioxide in the air entering through the through hole 3F. The sizes of the through holes 3E and 3F are small and the air quality sensor directly abuts against the positions of the through holes 3E and 3F inside the cabinet 3, so that the indoor air does not directly enter the inside of the cabinet 3 through the through holes 3E and 3F without being filtered. In another embodiment, the air quality sensor 12 may be disposed outside the cabinet 3 and connected to the cabinet 3. In another embodiment, air quality sensors may be disposed at the positions of the air inlet holes 3A or the air outlet holes 3B, and an air temperature sensor, an air humidity sensor, or an air pressure sensor may be disposed at each of the air inlet positions and the air outlet positions, and the sensors are electrically connected to the control unit 1A. The function of each sensor will be described in further detail later. The cover plate 1 and the clamping plate 2 can be sequentially arranged on the casing 3 through screws, and after the cover plate 1 and the clamping plate 2 are arranged on the casing 3, air can only flow into or out of the casing 3 through a channel formed in the upper casing surface of the casing 3.
Referring to fig. 6, the first damper 8 is located on the left side of the cold-heat exchanger 6 between the first fan 4 and the second fan 5; the cold-heat exchanger 6 is arranged on the air inlet side of the first fan 4 and on the air outlet side of the second fan 5. The first fan 4 and the second fan 5 are both of axial air inlet and radial air outlet structures, and guide the radial air outlet direction through an external volute structure.
In one embodiment, the heat exchanger 6 of the fresh air machine of the present invention is a paper core heat exchanger, which can exchange the temperature and humidity of the air flowing through the first air duct and the second air duct compared to an aluminum core heat exchanger.
Referring to fig. 8 to 10, the first air valve 8 includes a first housing 81, a second housing 82, a third housing 83, a motor 84, a plurality of swing blades 85, a plurality of swing parts 86, and a connecting rod 87. The first casing 81 and the third casing 83 penetrate vertically and have a substantially rectangular parallelepiped structure. The third casing 83 is formed with through holes 83A corresponding to the respective swing blades 85, and a plurality of swing blades 85 are arranged in an array inside the third casing 83 and can swing with respect to the third casing 83. Each swing blade 85 has a connecting end 85A passing through the corresponding through hole 83A, each connecting end 85A passing through the through hole 83A is connected to the upper end of the corresponding swing member 86, and the lower end of each swing member 86 is connected to the connecting rod 87. The motor 84 can be connected to the outer side of the third housing 83 by means of screws, and the output shaft of the motor 84 is connected to the upper end of one of the swing members 86. When the motor 84 rotates forward, the swing piece 86 connected to the motor can be driven to swing, and further the other swing pieces 86 can be driven to swing simultaneously through the connecting rod 87, and each swing piece 86 synchronously drives the corresponding swing blade 85 to swing from the horizontal position to the vertical position when swinging, so that a channel for air circulation is formed on the inner side of the third shell 83. Conversely, when the motor 84 rotates reversely, each swing blade 85 can swing from the vertical orientation to the horizontal orientation to close the channel inside the third housing 83 for air to circulate. The second casing 82 is enclosed on the side of the third casing 83 where the motor 84 is disposed, and the first casing 81 is enclosed outside the second casing 82 and the third casing 83.
Referring to fig. 2, the first mounting structure 14 includes a clip 14A disposed on the rear side of the housing 3 and a clip groove 14B disposed on the mounting plate 13. The mounting plate 13 can be fixed on the wall in advance, and then the user can be led to the clamping piece 14A in the clamping groove 14B to hang the casing 3 on the mounting plate 13. The mounting plate 13 is provided with through holes 13A and 13B corresponding to the air inlet holes 3A and the air outlet holes 3B. It is easy to understand that the mounting plate 13 is not a necessary component of the new air conditioner of the present invention, i.e. the first mounting structure 14 may only include the clip member 14A, and the user may preset a clip groove on the wall, so that the user can directly clip the clip member 14A in the clip groove on the wall. The fresh air machine may further be provided with a second mounting structure (not shown) for mounting the fresh air machine in a width-wise standing position. The new fan can be the same as the first mounting structure in the mode that the second mounting structure is hung on the wall, and can be indirectly hung on the wall through the mounting plate or directly hung on the wall through a clamping groove arranged on the wall. Through the configuration of the first mounting structure 14 and the second mounting structure, the new fan can be installed at different positions according to different installation environments.
The mode of operation of the fresh air machine of the present invention will be further described below.
The fresh air machine of the invention can comprise a fresh air purification mode and an indoor rapid purification mode. Specifically, the control unit may include a fresh air purification module for controlling the first air duct and the second air duct to operate simultaneously, and an indoor purification module for controlling the first air duct and the third air duct to operate simultaneously.
Referring to fig. 2 and 6, when the fresh air machine is in the fresh air purification mode, the first air machine 4 and the second air machine 5 work simultaneously, the second air valve 7 is in the open state, the first air valve 8 is in the closed state, the outdoor air enters the room through the first air duct, and the indoor air is discharged out of the room through the second air duct. When the new fan works in a new air purification mode, in order to prevent outdoor air from entering the room from positions such as window gaps without being filtered, the working power of the first fan 4 is larger than that of the second fan 5, and further the ventilation volume in the first air channel is larger than that in the second air channel, so that the room is in a positive pressure state. When the fresh air machine is in a fresh air purification mode, outdoor fresh air and indoor exhaust air flow in different flow channels in the cold-heat exchanger 6, and the temperature and/or humidity exchange is completed in the cold-heat exchanger 6 due to the temperature and humidity difference between the outdoor fresh air and the indoor exhaust air, so that the temperature and/or the humidity content of the fresh air can be increased in winter, and the temperature and/or the humidity content of the fresh air can be reduced in summer, thereby providing fresh air and reducing the influence of the fresh air on the indoor environment (temperature and humidity).
With reference to fig. 2 and 7, when the new air blower works in the indoor fast purification mode, the second air valve 7 located at the air outlet 3B is in a closed state, the first air valve 8 is in an open state, the first air blower 4 works and the second air blower 5 does not work, and then the indoor air is purified by the third air duct and then returns to the indoor. When the new fan works in the indoor quick purification mode, the ventilation volume in the third air channel is larger than that in the first air channel, and then indoor air can be quickly purified.
In cold winter, water vapor is easy to condense on the cold-heat exchanger, which affects the work of the cold-heat exchanger. Specifically, the control unit further includes an exchanger protection module that controls the second air duct to operate alone to dehumidify and defrost the cold heat exchanger 6. When the new fan works in the dehumidification and defrosting mode, the first air valve 8 is in a closed state, the second air valve 7 is in an open state, the first fan is in an inoperative state, and the second fan 5 is in an operative state, so that air with higher indoor temperature in winter can be discharged outdoors through the cold-heat exchanger, and the purpose of performing dehumidification and defrosting on the cold-heat exchanger is achieved.
It should be noted that, in one embodiment, the user may manually select the operation mode of the fresh air machine through an input component provided on the control unit 1A. In another embodiment, the operation mode can also be automatically selected by the new air blower, and specifically, as mentioned above, the new air blower of the present invention can be configured with the air quality sensor 12, the temperature sensor, the humidity sensor and the pressure sensor, and the sensors are electrically connected to the control unit 1A. When the air quality sensor 12 detects that the indoor air quality is poor, the control unit 1A can automatically start the fresh air purification mode according to the detected information. When the air inlet 3A is configured with an air temperature sensor and the sensor detects that the air temperature is low, the control unit 1A can automatically start the dehumidification and defrosting operation mode according to the detected information. Similarly, when the air inlet position and the air outlet position are provided with pressure sensors for detecting indoor air and outdoor air, the control unit 1A can adjust the working mode of the fresh air machine according to the detected pressure information.
In other embodiments, the second fan may not be disposed on the air inlet section where the second channel and the third channel coincide, but disposed on a side of the heat exchanger close to the second air valve 7.
The above is a specific embodiment of the present invention. It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. All falling within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (8)
1. A double-circulation fresh air system can maintain indoor air pressure greater than outdoor air pressure to generate micro-positive pressure and comprises a control unit and an air purification unit; the air purification unit includes:
the first air duct is used for sucking and purifying outdoor air and then discharging the purified outdoor air to the indoor space;
a second duct for discharging indoor air to an outdoor space;
a third air duct for sucking and purifying indoor air and discharging the purified indoor air to the indoor;
the first air duct and the second air duct are arranged in a crossed manner, and a cold-heat exchanger is arranged at the crossed position;
the method is characterized in that:
the first air duct is provided with a first fan, the second air duct is provided with a second fan, and the first fan and the second fan are respectively electrically connected with the control unit and controlled to operate;
the cold-heat exchanger is arranged on the air inlet side of the first fan and is positioned on the air outlet side of the second fan;
the third air duct is provided with a first air valve which is electrically connected with the control unit, and the first air valve is positioned on the side of the cold-heat exchanger and is arranged adjacent to the cold-heat exchanger;
the first fan, the second fan, the cold-heat exchanger and the first air valve are all arranged in the shell;
when the first air valve is opened, indoor air can enter the interior of the shell through the air inlet of the third air duct, and then sequentially passes through the first air valve and the first fan and enters the room from the air outlet of the third air duct;
the control unit comprises a fresh air purification module and an indoor purification module, and the fresh air purification module is used for controlling the first air channel and the second air channel to operate simultaneously so as to discharge indoor air while introducing outdoor air and maintain micro-positive pressure;
the indoor purification module is used for controlling the first air channel and the third air channel to operate simultaneously so as to rapidly purify indoor air and introduce outdoor air to maintain micro-positive pressure;
the fresh air purification module and the indoor purification module do not work at the same time; the ventilation volume in the first air flue is greater than the ventilation volume in the second air flue, and the ventilation volume in the third air flue is greater than the ventilation volume in the first air flue.
2. The dual circulation fresh air system of claim 1, wherein the first air duct and the air outlet section of the third air duct are coincident, and the first fan is located on the air outlet section;
the second air duct is superposed with the air inlet section of the third air duct, and the second fan is positioned on the air inlet section;
the third air duct is provided with a first air valve electrically connected with the control unit and used for switching on or switching off the air inlet section and the air outlet section;
when the fresh air purification module operates, the control unit controls the first air valve to be in a closed state;
when the indoor purification module operates, the control unit controls the first air valve to be in an open state.
3. The fresh air system as claimed in claim 2, wherein the first air valve is located at a side of the heat exchanger and adjacent to the heat exchanger, and the first air valve is located between the first fan and the second fan;
the cold-heat exchanger is arranged on the air inlet side of the first fan and is positioned on the air outlet side of the second fan.
4. The dual cycle fresh air system of claim 1, wherein the operating power of the first fan is 1.2-2.0 times the operating power of the second fan.
5. The fresh air system as claimed in claim 2, wherein the first air duct has a first air filter at a position before the outdoor air flows into the heat exchanger, and has a second air filter at an air outlet side of the first fan, while having a third air filter at an air inlet side of the second fan in the second air duct.
6. The fresh air system as claimed in claim 2, wherein the air outlet of the second air duct is provided with a second air valve for cutting off the communication with the outdoor space, and the second air valve is a check valve;
when the air exhaust air valve works, the air can be driven to flow so as to open the second air valve.
7. The fresh air system as claimed in claim 1, wherein the fresh air system comprises an air quality sensor disposed on the first air duct, the second air duct or the third air duct, and the air quality sensor is electrically connected to the control unit.
8. A fresh air fan which is flat and cuboid in whole and is characterized in that the fresh air fan is provided with the fresh air system as claimed in any one of claims 1 to 7, the fresh air fan is further provided with a mounting structure for mounting the fresh air fan in a thickness direction horizontal placement or a width direction vertical placement mode, the back of the fresh air fan is provided with a pair of air inlet holes and air outlet holes which are used for communicating indoor and outdoor spaces when the fresh air fan is horizontally placed, and the side of the fresh air fan is also provided with a pair of air inlet holes and air outlet holes which are used for communicating indoor and outdoor spaces when the fresh air fan is vertically placed.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620782102 | 2016-07-25 | ||
| CN2016207821028 | 2016-07-25 |
Publications (2)
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| CN107202396A CN107202396A (en) | 2017-09-26 |
| CN107202396B true CN107202396B (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720312116.8U Active CN207006407U (en) | 2016-07-25 | 2017-03-28 | A kind of efficiently new blower fan |
| CN201710193415.9A Pending CN107202395A (en) | 2016-07-25 | 2017-03-28 | A kind of compact fresh air purifier |
| CN201710193421.4A Active CN107202396B (en) | 2016-07-25 | 2017-03-28 | Dual cycle formula new trend system and new fan |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720312116.8U Active CN207006407U (en) | 2016-07-25 | 2017-03-28 | A kind of efficiently new blower fan |
| CN201710193415.9A Pending CN107202395A (en) | 2016-07-25 | 2017-03-28 | A kind of compact fresh air purifier |
Country Status (2)
| Country | Link |
|---|---|
| CN (3) | CN207006407U (en) |
| WO (1) | WO2018018989A1 (en) |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN207006407U (en) | 2018-02-13 |
| CN107202395A (en) | 2017-09-26 |
| WO2018018989A1 (en) | 2018-02-01 |
| CN107202396A (en) | 2017-09-26 |
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Address after: 361100, No. 2, No. 30, Ma On Road, Tongan, Fujian, Xiamen Applicant after: XIAMEN MENGFALI HEALTH SCIENCE & TECHNOLOGY Co.,Ltd. Applicant after: XIAMEN COMFORT SCIENCE&TECHNOLOGY GROUP Co.,Ltd. Address before: 350000 horses in Fujian province Tong'an District of Xiamen city Anlu No. 30 Applicant before: XIAMEN MENGFALI HEALTH SCIENCE & TECHNOLOGY Co.,Ltd. Applicant before: XIAMEN COMFORT SCIENCE & TECHNOLOGY GROUP Co.,Ltd. |
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Address after: 361100 R & D office building No.1, Plant No.2 and plant No.3, No.30 Malong Road, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen hobos Intelligent Health Technology Co.,Ltd. Address before: 361100 R & D office building No.1, Plant No.2 and plant No.3, No.30 Malong Road, Tong'an District, Xiamen City, Fujian Province Patentee before: Xiamen huboshi Environmental Engineering Industry Co.,Ltd. |