CN108397829B - Fresh air conditioner indoor unit - Google Patents
Fresh air conditioner indoor unit Download PDFInfo
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- CN108397829B CN108397829B CN201810361914.9A CN201810361914A CN108397829B CN 108397829 B CN108397829 B CN 108397829B CN 201810361914 A CN201810361914 A CN 201810361914A CN 108397829 B CN108397829 B CN 108397829B
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- 238000000746 purification Methods 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims description 21
- 238000004378 air conditioning Methods 0.000 claims description 13
- 239000003507 refrigerant Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000003915 air pollution Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 230000005684 electric field Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000255925 Diptera Species 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000004887 air purification Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
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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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
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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
- F24F7/007—Ventilation with forced flow
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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 Room Units, And Self-Contained Units In General (AREA)
Abstract
The invention provides a fresh air conditioner indoor unit, which comprises a shell and a fresh air device, wherein the fresh air device is arranged at one side end part of the shell and comprises an air inlet module and a fan module communicated with the air inlet module; an air inlet cavity is defined in the air inlet module, and an air inlet is formed in the lower rear part of the air inlet module and used for introducing outdoor air into the air inlet cavity; the fan module sends outdoor fresh air introduced by the air inlet module into the room, the inner side of an air outlet of the fan module is provided with a purification module, and the lower part of the purification module is provided with an auxiliary heat exchanger. The auxiliary heat exchanger is arranged on the fan module of the fresh air device, after the fresh air function is operated, the air quantity needing heat exchange is increased when the air conditioner heats and needs longer time to reach the set temperature, and the auxiliary heat exchanger is arranged in the fresh air device to refrigerate and heat fresh air entering a room in advance, so that the heat exchange effect of the air conditioner can be effectively improved, and the comfort level of a user during use is improved.
Description
Technical Field
The invention relates to an air conditioner, in particular to a fresh air conditioner indoor unit.
Background
The air conditioner is a household appliance which is widely applied, generally has heating and refrigerating functions, adjusts the temperature of indoor air when the ambient temperature is too low or too high, provides a proper indoor environment for users, and effectively improves the life quality of the users.
However, since the conventional air conditioner only circularly heats or cools indoor air during heating or cooling, and a user simultaneously closes a door of a living room to maintain the indoor temperature, the indoor air quality is gradually deteriorated, thereby adversely affecting the physical health of the user. Particularly, in recent years, the air pollution is increasingly serious, and people are reluctant to open windows for ventilation particularly in winter heating seasons, so that the indoor air quality is increasingly poor, the oxygen content is increasingly low, and the physical health is affected.
After the new trend device is introduced to present air conditioning indoor set, when using the new trend function, can increase the air quantity that carries out the heat exchange, under the unchangeable prerequisite of air conditioner refrigeration/heating ability, need longer time during the air conditioner operation just can reach the temperature that the user set for, can make refrigeration/heating effect worsen to influence user experience.
Disclosure of Invention
The invention aims to provide a fresh air conditioner indoor unit, which at least solves part of defects in the prior art.
A further object of the present invention is to improve the indoor air quality.
It is another further object of the invention to enhance the user experience.
In particular, the present invention provides a fresh air conditioner indoor unit, comprising:
the air conditioner comprises a shell, an air inlet, a fan, a heat exchanger, a fan, a;
the fresh air device is arranged at one side end part of the shell; wherein
The fresh air device comprises an air inlet module and a fan module communicated with the air inlet module;
an air inlet cavity is defined in the air inlet module, and an air inlet is formed in the lower rear part of the air inlet module and used for introducing outdoor air into the air inlet cavity;
the fan module comprises a centrifugal fan and a volute arranged outside the centrifugal fan; an air inlet of the volute is communicated with the air inlet cavity, an air outlet of the volute faces the top of the shell, a purification module is arranged on the inner side of the air outlet of the fan module, and an auxiliary heat exchanger is arranged on the lower portion of the purification module; the centrifugal fan is configured to suck air from the outdoor of the air inlet cavity, and the air is discharged from the air outlet of the volute after passing through the auxiliary heat exchanger and the purification module in sequence; and is
The auxiliary heat exchanger and the main heat exchanger are arranged in parallel, and a valve is arranged at a cold end inlet of the auxiliary heat exchanger and used for controlling the opening and closing of the auxiliary heat exchanger;
the air supply fan is also configured to suck at least part of air discharged by the centrifugal fan from an air inlet at the top of the shell so as to be discharged from an air supply outlet at the lower part of the shell after exchanging heat with the main heat exchanger.
Preferably, an accommodating cavity is defined at the air outlet of the volute and penetrates through the air outlet of the fan module, so that outdoor air is sent into the room through the accommodating cavity.
Preferably, the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity along the air outlet direction, the first accommodating cavity and the second accommodating cavity are separated by a partition plate, wherein,
an auxiliary heat exchanger is arranged in the first accommodating cavity;
the second holds the intracavity and is equipped with purification module.
Preferably, the side wall of the first accommodating cavity is of a closed structure, and the side, close to the inside of the indoor unit, of the first accommodating cavity is transversely and symmetrically provided with a convex block for fixing the auxiliary heat exchanger.
Preferably, the second holds the chamber and opens there is the mounting hole towards one side in indoor set the place ahead to in purification module's dismouting, the baffle is used for supporting purification module.
Preferably, the fresh air device is integrally arranged at one end of the electric control board far away from the indoor unit, and the air inlet module is arranged at one side of the fan module.
Preferably, the rotational axis of the centrifugal fan is parallel to the rotational axis of the blower fan.
Preferably, an air inlet grille is arranged at an air inlet of the air inlet module;
an air outlet grille consistent with the air inlet grille of the air inlet of the shell is arranged at the air outlet of the fan module.
Preferably, the fresh air device is independent of the indoor unit for heating or cooling operation.
Preferably, a controller is arranged at the upper end of the air inlet module and close to the fan module;
the controller is configured to control opening or closing of the fresh air device.
According to the fresh air conditioner indoor unit, the fresh air device is additionally arranged on the traditional air conditioner indoor unit, so that even if a window is closed in the air conditioner refrigerating or heating process, outdoor air can be introduced into a room through the fresh air device, continuous and fresh air is provided for a closed indoor space, the oxygen content of the indoor air is increased, and air conditioning diseases are avoided.
Furthermore, the fresh air device is internally provided with the purification module, so that fresh air entering a room can be purified, especially, the air pollution is increasingly aggravated at present, the purified air is sent into the room, the quality of the indoor air is improved, and the harm of the polluted air to the body is reduced.
Furthermore, the fan module of the fresh air device is provided with the auxiliary heat exchanger, after the fresh air function is operated, the air quantity of the air conditioner which needs to exchange heat during refrigeration/heating is increased, and the air conditioner can reach the set temperature in a longer time.
Furthermore, the fresh air device can be installed inside the indoor unit, integrated with the indoor unit, or installed outside the indoor unit. No matter the installation state of any form, all can reduce the cost of using the new fan among the prior art by a wide margin, and the noise is low, has better user experience.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is an overall schematic view of a fresh air conditioner indoor unit according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fresh air device of the fresh air conditioning indoor unit of FIG. 1;
FIG. 3 is a front view of the fresh air device of FIG. 2;
FIG. 4 is a left side view of the fresh air device of FIG. 2;
FIG. 5 is a right side view of the fresh air device of FIG. 2;
FIG. 6 is a partial exploded view of the fresh air device of FIG. 2;
FIG. 7 is a schematic view of an air intake module of the fresh air device of FIG. 2;
fig. 8 is a schematic diagram of the operation of the fresh air conditioning indoor unit shown in fig. 1.
Detailed Description
Fig. 1 is an overall schematic view of a fresh air conditioning indoor unit 10 according to an embodiment of the present invention. As can be seen from fig. 1, the fresh air conditioning indoor unit 10 according to the present invention includes a fresh air device 200 in addition to the indoor unit 10 having the same appearance and performance as those of the prior art. Specifically, the indoor unit 10 includes a casing 100, a blower fan (not shown) and a main heat exchanger (not shown) are disposed inside the casing 100, an air inlet 110 is opened at the top of the casing 100, and an air outlet (not shown) is formed at the lower portion of the casing 100. Indoor air is introduced into the indoor unit 10 from the air inlet 110 through the air supply fan, and after heat exchange (cooling or heating) is performed through the main heat exchanger, the air subjected to heat exchange is introduced into the room from the air supply outlet, and the circulation is performed, so that the temperature of the indoor air is adjusted when the ambient temperature is too low or too high, a suitable indoor environment is provided for users, and the life quality of the users is effectively improved.
According to the fresh air-conditioning indoor unit 10, the fresh air device 200 is additionally arranged on the traditional air-conditioning indoor unit 10, so that even if a window is closed in the air-conditioning refrigeration or heating process, outdoor air can be introduced into a room through the fresh air device 200 to provide continuous and fresh air for a closed indoor space, the oxygen content of indoor air is increased, and air-conditioning diseases are avoided.
In some embodiments of the present invention, as shown in fig. 1, the fresh air device 200 is disposed at one side end of the casing 100, is located inside the casing 100, and is integrated with the original air conditioning indoor unit 10, and the fresh air device 200 is not exposed outside the indoor unit 10, so as to maintain the aesthetic appearance and save the space for installing the indoor unit 10.
The blower fan of the indoor unit 10 is disposed to suck at least a part of the outdoor air sent to the room by the fresh air device 200 from the air inlet 110 at the top of the casing 100, and to discharge the sucked air from the blower outlet (not shown) at the lower part of the casing 100 after exchanging heat with the main heat exchanger (not shown). Therefore, the fresh outdoor air sent into the room rapidly reaches the indoor set temperature after being subjected to heat exchange through the main heat exchanger (not shown in the figure) of the indoor unit 10, so that the indoor temperature is not greatly fluctuated, the indoor temperature is kept stable, and a comfortable and healthy environment is provided for users.
However, after the fresh air device 200 is introduced into the indoor unit 10 of the air conditioner, when the fresh air function is used, the amount of air for heat exchange is increased, and on the premise that the cooling/heating capability of the air conditioner is not changed, the air conditioner needs a longer time to reach the temperature set by the user during operation, so that the cooling/heating effect is deteriorated, and the user experience is affected.
Fig. 2 is a schematic view of a fresh air device 200 of the fresh air conditioning indoor unit 10 shown in fig. 1; FIG. 3 is a front view of the fresh air device 200 shown in FIG. 2; FIG. 4 is a left side view of the fresh air device 200 shown in FIG. 2; FIG. 5 is a right side view of the fresh air device 200 shown in FIG. 2; fig. 6 is a partial exploded view of the fresh air device 200 shown in fig. 2. Further, as can be seen from the above drawings, the fresh air device 200 includes an air intake module 210 and a fan module 220, wherein the air intake module 210 is communicated with the fan module 220; an air inlet cavity is defined inside the air inlet module 210, and an air inlet 110 is disposed below and behind the air inlet module 210 and used for introducing outdoor air into the air inlet cavity.
The fan module 220 includes a centrifugal fan 221 and a volute 222 disposed outside the centrifugal fan 221, an air inlet of the volute 222 is communicated with an air inlet chamber of the air inlet module 210, and an air outlet 223 of the volute faces the top of the casing 100, as shown in fig. 1. The centrifugal fan 221 is configured to suck air from the outdoor through the air inlet chamber of the air inlet module 210, discharge the air from the air outlet 223 of the volute 222, and continuously deliver fresh air from the outdoor to the indoor through the fan module 220.
Further, a purification module 225 is arranged inside the air outlet 223 of the fan module 220, and an auxiliary heat exchanger 224 is arranged at the lower part of the purification module 225; the centrifugal fan 221 is configured to suck air from the outside through the inlet chamber, and discharge the air through the outlet 223 of the scroll casing 222 after passing through the secondary heat exchanger 224 and the purification module 225 in sequence. When the fresh air function is used, air from the outside is mixed with the heat-exchanged air before entering the room, the air is subjected to pre-heat exchange through the auxiliary heat exchanger 224 and then is purified by the purification module 225 and then is sent into the room, therefore, under the condition of increasing the air quantity for heat exchange, the outdoor air in the new air enters the room and is subjected to pre-heat exchange (cooling or heating), the temperature of the pre-heat exchange can be set in advance according to the actual condition, the outdoor air is conveyed to the room after reaching a certain temperature, the refrigerating or heating capacity of the air conditioner is greatly improved, the air conditioner needs a short time to reach the temperature set by a user during operation, the refrigerating or heating effect is improved, and the user experience is improved.
And the auxiliary heat exchanger 224 and the main heat exchanger are arranged in parallel, and a valve is arranged at the cold end inlet of the auxiliary heat exchanger 224 and used for controlling the opening and closing of the auxiliary heat exchanger 224. When the outdoor air entering the room needs to exchange heat in advance, the valve is opened, so that the heat exchange medium exchanges heat with the outdoor air; when the outdoor air entering the room does not need to exchange heat in advance, the valve is closed, and at the moment, the fresh air device 200 only plays a role in exchanging fresh air and purifying fresh air.
Specifically, an accommodating cavity 226 is defined outwards at the air outlet 223 of the volute 222 of the fan module 220, the accommodating cavity 226 penetrates through the air outlet 223 of the fan module 220, so that outdoor air is sent into the indoor space through the accommodating cavity 226, and the auxiliary heat exchanger 224 and the purification module 225 are installed in the accommodating cavity 226. After the fresh air function is operated, the air quantity of the air conditioner needing heat exchange is increased during heat exchange, the set temperature can be reached only in a longer time, the auxiliary heat exchanger 224 is installed in the fresh air device 200, heat exchange is carried out on fresh air entering a room in advance, the refrigerating or heating effect of the air conditioner can be effectively improved, and the comfort level of a user during use is improved.
The cross-sectional area of the accommodating cavity 226 is larger than that of the air outlet 223 of the fan module 220, so that the auxiliary heat exchanger 224 and the purification module 225 can be supported and fixed conveniently.
In a specific embodiment, the accommodating cavity 226 is divided into a first accommodating cavity 226a and a second accommodating cavity 226b along the air outlet direction, the first accommodating cavity 226a and the second accommodating cavity 226b are separated by a partition 226c, as shown in fig. 6, the sub-heat exchanger 224 is installed in the first accommodating cavity 226a, and the purification module 225 is installed in the second accommodating cavity 226 b.
Specifically, the sidewall of the first accommodating chamber 226a is a closed structure, and is formed by splicing the two-part volute 222 during the manufacturing process, and then fixing the two-part volute with screws. A projection 226d is transversely and symmetrically arranged on one side of the first accommodating chamber 226a close to the inside of the indoor unit 10, and when the port of the secondary heat exchanger 224 is sent to the inside of the indoor unit 10 through the volute 222, the projection 226d plays a role in fixing the secondary heat exchanger 224. The auxiliary heat exchanger 224 is detachably mounted, so that the auxiliary heat exchanger 224 can be flexibly mounted or dismounted and is convenient to replace; or whether the secondary heat exchanger 224 is installed may be determined according to actual circumstances.
The second receiving chamber 226b has a mounting hole 226e toward the front side of the indoor unit 10 for facilitating the assembly and disassembly of the purification module 225, and the partition 226c is used for supporting the purification module 225, so that the purification module 225 can be conveniently disassembled and assembled, and the user can realize the operation by himself without the operation of a professional, thereby increasing the popularization rate of the purification module 225. When the purification module 225 is used for a period of time, the purification module can be detached, and the purification device of the purification module 225 can be cleaned or replaced, so that the quality of air purification can be ensured.
In some alternative embodiments, the upper and lower positions of the secondary heat exchanger 224 and the purification module 225 may be changed, so that the outdoor air entering the room is purified by the purification module 225, heated to a predetermined temperature by the heating module 230, and then sent to the room to be mixed with the indoor air.
In other alternative embodiments, the position of the secondary heat exchanger 224 can be further changed, and the secondary heat exchanger 224 can be located inside the cabinet 100 of the indoor unit 10 and on the upper side of the main evaporator. In this embodiment, the outdoor fresh air is sucked into the indoor unit 10 from the air outlet 223 of the fan module 220 by the air supply fan, and is mixed with the indoor air, and then passes through the auxiliary heat exchanger 224 and the main evaporator in sequence to exchange heat, and the outdoor fresh air after heat exchange is sent into the indoor unit from the air supply outlet of the indoor unit 10.
In some preferred embodiments, the fresh air device 200 is integrally disposed at an end of the electric control board far away from the indoor unit 10, and the air intake module 210 is disposed outside the fan module 220. Because a part of the outdoor fresh air entering the room from the fan module 220 is sucked into the air inlet 110 through the air supply fan of the indoor unit 10, enters the indoor unit 10 for heat exchange, and is then sent to the room again, the fresh air device 200 is selectively installed on the side close to the air inlet 110 of the indoor unit 10 as soon as possible, that is, the end of the fresh air device 200 far away from the electric control board of the indoor unit 10, so that more fresh air from the outside enters the indoor unit 10, is discharged into the room after heat exchange through the indoor unit 10, more outdoor fresh air enters the indoor unit 10 for heat exchange, and the fluctuation of the indoor temperature.
In some alternative embodiments, depending on the structure of the indoor unit 10, an air inlet pipe leading to the outside may be connected to the air inlet 211 of the air inlet module 210, and the fresh air inlet pipe extends out of the casing 100 along the rear side of the bottom of the casing 100 together with the pipeline of the indoor unit 10, and the fresh air inlet pipe further extends out of the wall to the outside, so that the fresh air outside enters the inside through the fresh air inlet pipe.
In other preferred embodiments, the rotational axis of the centrifugal fan 221 is parallel to the rotational axis of the supply fan. The arrangement can reduce the noise of the centrifugal fan 221, improve the working efficiency of the centrifugal fan 221 and lead more outdoor fresh air into the room.
Further, as shown in fig. 1, an air inlet grille (not shown) is disposed at the air inlet 211 of the air inlet module 210, and an air outlet grille (not shown) corresponding to the air inlet grille of the air inlet 110 of the casing 100 is disposed at the air outlet 223 of the fan module 220. An air inlet grille is arranged at the air inlet 211 of the air inlet module 210, and an air outlet grille is arranged at the air outlet 223 of the fan module 220, so that dust or mosquitoes can be prevented from entering the fresh air device 200 to pollute or destroy the internal structure of the fresh air device 200, and the effect of changing fresh air of the fresh air device 200 is prevented from being reduced.
In order to ensure the quality of the fresh air entering the room, in other embodiments, fig. 7 is a schematic view of the air intake module 210 of the fresh air device 200 shown in fig. 2; outdoor air is conveyed to the fan module 220 through the air inlet cavity 212 of the air inlet module 210, the filter screen 227 is detachably mounted on the air inlet side, close to the fan module 220, of the air inlet module 210 and used for filtering air conveyed to the room, the filter screen 227 and the air inlet module 210 are detachably mounted, and the filter screen 227 can be detached to be cleaned or replaced regularly to ensure that air entering the room is fresh.
In a specific embodiment, as shown in fig. 2, the air outlet 223 of the fan module 220 is provided with a purification module 225, and the purification module 225 of the present invention purifies the air delivered to the room by using a filtration method, for example, using hypa filtration, which is a high efficiency filter paper, and can filter 99% of fine particles in the air, so as to ensure that the air output by the fan module 220 is clean and avoid secondary pollution.
In some alternative embodiments, the purification module 225 may also employ high field dielectric technology to purify air delivered to the room. Specifically, the purification module 225 is an IFD purification module, which is a dust removal technology, and is the most advanced and efficient technology in the existing dust removal technologies, and has a very strong effectiveness. A strong electric field with a dielectric material as a carrier is utilized. The dielectric material forms a honeycomb hollow micro-channel, the dielectric wrapping electrode slice forms a strong electric field in the channel, the strong electric field exerts huge attraction on charged particles moving in the air, only generates minimum air flow impedance, and can adsorb almost 100% of particles moving in the air, and the removal effect on particle pollutants such as PM2.5 and the like is particularly obvious. Adopt above-mentioned purification module 225, can reduce the PM2.5 granule in the air by a wide margin in the weather that the haze was abused, effectively improve the quality of sending into indoor outdoor air.
The fresh air device 200 is internally provided with the purification module 225, so that fresh air entering a room can be purified, especially, the air pollution is increasingly aggravated at present, the purified air is sent into the room, the quality of the indoor air is improved, and the harm of the polluted air to the body is reduced.
In other embodiments, the fresh air device 200 is disposed at an end of one side of the exterior of the casing 100, and is separately and independently installed from the casing 100 of the indoor unit 10, and by using the independently installed fresh air device 200, the existing indoor unit 10 of the air conditioner in a home can be directly installed with the fresh air device 200 outside without being modified or replaced, so that the effect of indoor fresh air exchange can be achieved. By adopting the structure, the installation flexibility of the fresh air device 200 can be realized, the original type of the indoor unit 10 is not limited, and the maintenance and the repair of the fresh air device 200 are convenient.
The fresh air device 200 in each of the above embodiments can be operated independently of the heating or cooling operation of the indoor unit 10, and can also be operated synchronously with the heating and cooling operation of the indoor unit 10.
The fresh air device 200 of the present invention may be installed inside the indoor unit 10, integrated with the indoor unit 10, or installed outside the indoor unit 10. No matter the installation state of any form, all can reduce the cost of using the new fan among the prior art by a wide margin, and the noise is low, has better user experience.
In order to facilitate control over the independent fresh air device 200, as shown in fig. 2, the fresh air device 200 has a corresponding controller 230, specifically, the controller 230 is disposed at the upper end of the air intake module 210 and near the fan module 220, the controller 230 is configured to control the opening or closing of the fresh air device 200, and the opening time of the fresh air device 200 can also be set, so that the working mode of the fresh air device 200 provided by the present invention is diversified, and the user experience is improved.
Finally, fig. 8 is a schematic diagram of the operation of the indoor unit 10 of the fresh air conditioner shown in fig. 1, in which an auxiliary heat exchanger 224 is added at the air outlet 223 of the fresh air device 200, and a valve, specifically an electromagnetic valve, is installed at the cold end inlet. The sub heat exchanger 224 is disposed in parallel with the main heat exchanger of the indoor unit 10.
When the air conditioner operates in a refrigerating mode, refrigerants flowing into the liquid inlet pipe respectively enter the two evaporators for heat exchange, the main heat exchanger (the main evaporator at this time) cools indoor air, the auxiliary heat exchanger 224 (the auxiliary evaporator at this time) pre-cools outdoor air entering the room, the cooled outdoor air enters the indoor unit 10 from the air inlet 110 of the indoor unit 10 after being sent into the room, is cooled to the temperature set by the indoor unit 10 through the main heat exchanger (the main evaporator at this time) again, and is sent to the room through the air supply outlet of the indoor unit 10, and gas circulation is completed. Finally, the refrigerant absorbs heat at the primary heat exchanger (in this case, the primary evaporator) and the secondary heat exchanger 224 (in this case, the secondary evaporator), and then turns into gas to be collected into the compressor.
When the air conditioner is in heating operation, the four-way valve changes the flowing direction of the refrigerant, the high-temperature and high-pressure gas refrigerant enters an indoor air inlet pipe to be split, one part of the high-temperature and high-pressure gas refrigerant enters a main heat exchanger (a main condenser at this time) of the air conditioner, one part of the high-temperature and high-pressure gas refrigerant enters an auxiliary heat exchanger 224 (an auxiliary condenser at this time), the main heat exchanger (the main condenser at this time) heats the indoor gas, the auxiliary condenser (the auxiliary condenser at this time) preheats the outdoor air entering the indoor, the heated outdoor air enters the indoor unit 10 from an air inlet 110 of the indoor unit 10 after being sent into the indoor, the temperature of the air is raised to the temperature set by the main heat exchanger (the main condenser at this time) again. Finally, the high-temperature and high-pressure gas refrigerant is changed into liquid, converged in the liquid outlet pipe and enters the throttling device (in the throttling capillary pipe) together.
When the fresh air system does not need to be cooled/heated, that is, when the indoor unit 10 operates for humidification and can operate for other functions, the electromagnetic valve of the auxiliary heat exchanger 224 is closed, and the refrigerant cannot exchange heat through the path.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A fresh air conditioning indoor unit, comprising:
the air conditioner comprises a shell, an air inlet, a fan, a heat exchanger, a fan motor, a;
the fresh air device is arranged at one side end part of the shell; wherein
The fresh air device comprises an air inlet module and a fan module communicated with the air inlet module;
an air inlet cavity is defined in the air inlet module, and an air inlet is formed in the lower rear part of the air inlet module and used for introducing outdoor air into the air inlet cavity;
the fan module comprises a centrifugal fan and a volute arranged outside the centrifugal fan; an air inlet of the volute is communicated with the air inlet cavity, an air outlet of the volute faces the top of the shell, a purification module is arranged on the inner side of the air outlet of the fan module, and an auxiliary heat exchanger is arranged on the lower portion of the purification module; the centrifugal fan is configured to suck air from the outside of the air inlet cavity, and the air passes through the auxiliary heat exchanger and the purification module in sequence and then is discharged from an air outlet of the volute; and is
The auxiliary heat exchanger and the main heat exchanger are arranged in parallel, so that refrigerant enters the main heat exchanger and the auxiliary heat exchanger respectively for heat exchange, and converges after heat exchange;
a valve is arranged at a cold end inlet of the auxiliary heat exchanger and used for controlling the opening and closing of the auxiliary heat exchanger;
the air supply fan is also configured to suck at least part of air discharged by the centrifugal fan from an air inlet at the top of the shell so as to be discharged from an air supply outlet at the lower part of the shell after exchanging heat with the main heat exchanger.
2. The indoor unit of claim 1,
an accommodating cavity is defined at the air outlet of the volute and penetrates through the air outlet of the fan module, so that outdoor air is sent into the room through the accommodating cavity.
3. The indoor unit of claim 2, wherein,
the accommodating cavity is divided into a first accommodating cavity and a second accommodating cavity along the air outlet direction, the first accommodating cavity and the second accommodating cavity are separated by a partition plate, wherein,
the auxiliary heat exchanger is arranged in the first accommodating cavity;
the second holds the intracavity and is equipped with purification module.
4. The indoor unit of claim 3,
the side wall of the first accommodating cavity is of a closed structure, and protruding blocks are transversely and symmetrically arranged on one side, close to the inside of the indoor unit, of the first accommodating cavity and used for fixing the auxiliary heat exchanger.
5. The indoor unit of claim 3,
the second holds the chamber orientation one side in indoor set the place ahead is opened there is the mounting hole, so that purification module's dismouting, the baffle is used for supporting purification module.
6. The indoor unit of claim 1,
the fresh air device is integrally arranged at one end of the electric control board far away from the indoor unit, and the air inlet module is arranged at the side end of the fan module.
7. The indoor unit of claim 1,
the rotation axis of the centrifugal fan is parallel to the rotation axis of the air supply fan.
8. The indoor unit of claim 1,
an air inlet grille is arranged at the air inlet of the air inlet module;
and an air outlet grille consistent with the air inlet grille of the air inlet of the shell is arranged at the air outlet of the fan module.
9. The indoor unit according to any one of claims 1 to 8,
the fresh air device is independent of the indoor unit for heating or refrigerating operation.
10. The indoor unit of claim 9, wherein,
a controller is arranged at the upper end of the air inlet module and close to the fan module;
the controller is configured to control opening or closing of the fresh air device.
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| CN201810361914.9A CN108397829B (en) | 2018-04-20 | 2018-04-20 | Fresh air conditioner indoor unit |
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| CN201810361914.9A CN108397829B (en) | 2018-04-20 | 2018-04-20 | Fresh air conditioner indoor unit |
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| CN108397829B true CN108397829B (en) | 2021-05-25 |
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| CN109114785B (en) * | 2018-09-30 | 2024-04-05 | 珠海格力电器股份有限公司 | Air duct module and air conditioner indoor unit with same |
| CN109297092A (en) * | 2018-09-30 | 2019-02-01 | 珠海格力电器股份有限公司 | Air conditioner indoor unit |
| CN109764407A (en) * | 2019-03-01 | 2019-05-17 | 珠海格力电器股份有限公司 | The control method of air conditioner indoor unit and air conditioner indoor unit |
| CN111271773A (en) * | 2020-03-20 | 2020-06-12 | 海信（山东）空调有限公司 | Indoor machine of air conditioner |
| CN111853949B (en) * | 2020-08-13 | 2024-02-09 | 海信空调有限公司 | Air conditioner indoor unit and control method for fresh air function of air conditioner |
| CN111853948B (en) * | 2020-08-13 | 2024-02-09 | 海信空调有限公司 | Air conditioner indoor unit and control method for fresh air function of air conditioner |
| CN117287746B (en) * | 2023-11-27 | 2024-02-27 | 珠海格力电器股份有限公司 | Dehumidifying method for air conditioner |
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Effective date of registration: 20210416 Address after: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant after: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. Applicant after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, Haier Road, Laoshan District, Shandong, Qingdao, China Applicant before: QINGDAO HAIER AIR CONDITIONER GENERAL Corp.,Ltd. |
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