CN113639360B - Fresh air device and air conditioner indoor unit having the same - Google Patents
Fresh air device and air conditioner indoor unit having the same Download PDFInfo
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- CN113639360B CN113639360B CN202110920418.4A CN202110920418A CN113639360B CN 113639360 B CN113639360 B CN 113639360B CN 202110920418 A CN202110920418 A CN 202110920418A CN 113639360 B CN113639360 B CN 113639360B
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- fresh air
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- 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
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside 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
- F24F13/02—Ducting arrangements
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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
- F24F13/20—Casings or covers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air-Flow Control Members (AREA)
Abstract
本发明提供了一种新风装置及具有其的空调室内机，包括：新风机壳，新风机壳上设置有室内进风口、新风出口和切换口，室内进风口和新风出口均用于与室内空气连通，切换口用于与室外空气连通；新风引风结构和排风结构，新风引风结构和排风结构间隔设置在新风机壳内，室内进风口与排风结构的排风腔连通，新风出口与新风引风结构的新风腔连通；其中，切换口可选择地与新风腔或排风腔连通，以使由室内进风口流入至排风腔内的风经切换口流出、或使由切换口引入的新风经新风腔后由新风出口流出。通过本发明提供的技术方案，能够解决现有技术中的新风装置无法实现排风功能的技术问题。
The present invention provides a fresh air device and an air conditioner indoor unit having the same, comprising: a fresh air casing, the fresh air casing is provided with an indoor air inlet, a fresh air outlet and a switching port, the indoor air inlet and the fresh air outlet are both used to communicate with indoor air, and the switching port is used to communicate with outdoor air; a fresh air induction structure and an exhaust structure, the fresh air induction structure and the exhaust structure are arranged in the fresh air casing at intervals, the indoor air inlet is connected to the exhaust cavity of the exhaust structure, and the fresh air outlet is connected to the fresh air cavity of the fresh air induction structure; wherein the switching port can be selectively connected to the fresh air cavity or the exhaust cavity, so that the air flowing from the indoor air inlet into the exhaust cavity flows out through the switching port, or the fresh air introduced by the switching port flows out through the fresh air cavity and then flows out from the fresh air outlet. The technical solution provided by the present invention can solve the technical problem that the fresh air device in the prior art cannot realize the exhaust function.
Description
Technical Field
The invention relates to the technical field of air conditioner indoor units, in particular to a fresh air device and an air conditioner indoor unit with the same.
Background
At present, with the improvement of national life quality, the functional requirements of users on air conditioners are not only limited to refrigeration and heating, but also the freshness of indoor air. Therefore, the air conditioner of the prior art generally introduces a fresh air function to improve user comfort and indoor environment of the user.
However, the fresh air device in the prior art is generally only used for introducing fresh air indoors, has a single function, and cannot realize an air exhaust function. If the indoor polluted air is required to be discharged, an exhaust device is often required to be additionally arranged.
Disclosure of Invention
The invention mainly aims to provide a fresh air device and an air conditioner indoor unit with the same, so as to solve the technical problem that the fresh air device in the prior art cannot realize an air exhaust function.
In order to achieve the above object, according to one aspect of the present invention, there is provided a fresh air device, including a fresh air casing, an indoor air inlet, a fresh air outlet and a switching port provided on the fresh air casing, the indoor air inlet and the fresh air outlet being both for communication with indoor air, the switching port being for communication with outdoor air, a fresh air introduction structure and an exhaust structure provided in the fresh air casing at intervals, the indoor air inlet being in communication with an exhaust chamber of the exhaust structure, the fresh air outlet being in communication with a fresh air chamber of the fresh air introduction structure, wherein the switching port is selectively in communication with the fresh air chamber or the exhaust chamber so that air flowing into the exhaust chamber from the indoor air inlet flows out through the switching port, or so that fresh air introduced from the switching port flows out from the fresh air outlet after passing through the fresh air chamber.
Further, a switching air duct is further arranged in the fresh air shell, the switching air duct is arranged between the fresh air induced air structure and the air exhaust structure, one end of the switching air duct forms a switching opening, the other end of the switching air duct is provided with a communication opening part, the communication opening part is provided with a first opening state communicated with the air exhaust cavity and a second opening state communicated with the fresh air cavity, and therefore the switching opening is selectively communicated with the fresh air cavity or the air exhaust cavity through the communication opening part.
Further, the fresh air device also comprises a switching mechanism, wherein the switching part of the switching mechanism is movably arranged at the communicating opening part so as to enable the communicating opening part to be in a first opening state or a second opening state under the switching action of the switching mechanism.
The switching mechanism comprises a first switching plate and a second switching plate, wherein the first switching plate and the second switching plate are movably arranged at the first opening, the second switching plate is movably arranged at the second opening, when the communication opening is in a first opening state, the first switching plate moves to a position avoiding the first opening, the second switching plate moves to a position covering the second opening, and when the communication opening is in a second opening state, the first switching plate moves to a position covering the first opening, and the second switching plate moves to a position avoiding the second opening.
Further, the first switching plate is movably disposed at the first opening, and/or the second switching plate is movably disposed at the second opening.
Further, the switching mechanism further comprises a driving part, the driving part is in driving connection with the switching part, and the driving part comprises a gear rack structure meshed with each other.
The switching mechanism comprises a driving gear, a first driving rack, a second driving rack and a second driving rack, wherein the first driving rack is meshed with the driving gear, the first driving rack is connected with the first switching plate so that the driving gear drives the first switching plate to move through the first driving rack, the second driving rack is meshed with the driving gear, the first driving rack and the second driving rack are respectively positioned on two sides of the driving gear, and the second driving rack is connected with the second switching plate so that the driving gear drives the second switching plate to move through the second driving rack.
Further, a connecting shell is arranged in the new fan shell and is used for enclosing a switching air duct, and a communication opening is formed in the connecting shell; the side wall of the connecting shell is provided with a first socket which is matched with the shape of the first switching plate so that the first switching plate is inserted into the first socket and covers the first opening, and/or the side wall of the connecting shell is provided with a second socket which is matched with the shape of the second switching plate so that the second switching plate is inserted into the second socket and covers the second opening.
Further, a fresh air inlet is further formed in the fresh air shell and used for introducing outdoor fresh air, and the fresh air inlet is communicated with the fresh air cavity so that the outdoor fresh air introduced by the fresh air inlet flows into the fresh air cavity.
Further, the fresh air outlet is arranged on one side of the fresh air shell, the indoor air inlet and the switching port are arranged on the other side of the fresh air shell, and/or the indoor air inlet is arranged above the switching port.
Further, a fresh air inlet is further formed in the fresh air shell and is used for introducing outdoor fresh air, the fresh air inlet is communicated with the fresh air cavity so that the outdoor fresh air introduced by the fresh air inlet flows into the fresh air cavity, the fresh air inlet, the indoor air inlet and the switching port are all located on the same side of the fresh air shell, the indoor air inlet is located above the fresh air inlet, and the switching port is arranged between the indoor air inlet and the fresh air inlet.
Further, the fresh air shell comprises a motor mounting plate, a volute and a sealing cover, wherein the volute is provided with a first fan blade mounting opening and a second fan blade mounting opening which are arranged at intervals, and the motor mounting plate and the sealing cover are respectively mounted on two sides of the volute so as to respectively enclose an exhaust cavity and a fresh air cavity with the first fan blade mounting opening and the second fan blade mounting opening.
Further, the fresh air device is arranged in an indoor machine shell of the air conditioner indoor machine, the sealing cover is arranged opposite to a rear panel of the indoor machine shell, the motor mounting plate is arranged opposite to a front panel of the indoor machine shell, the fresh air outlet is arranged on the motor mounting plate, and the indoor air inlet, the switching opening and the fresh air inlet are all arranged on the sealing cover.
Further, a fresh air outlet part is arranged on the front panel of the indoor unit shell, the fresh air device is positioned at the rear side of the indoor unit shell, and the fresh air device further comprises an induced air shell, wherein the induced air shell extends from the rear panel of the indoor unit shell to the front panel of the indoor unit shell, one end of the induced air shell is connected with the fresh air outlet, and the other end of the induced air shell is arranged towards the fresh air outlet part.
According to another aspect of the present invention, there is provided an air conditioner indoor unit, the air conditioner indoor unit including a fresh air device, the fresh air device being the fresh air device provided above.
By applying the technical scheme of the invention, the working mode of the fresh air device can be changed by changing the communication mode of the switching port. Specifically, when the switching port is communicated with the exhaust cavity, indoor dirty air flows into the exhaust cavity from the indoor air inlet and flows out through the switching port, and at the moment, the fresh air device achieves the function of exhausting indoor dirty air. When the switching port is communicated with the fresh air cavity, outdoor fresh air flows into the fresh air cavity through the switching port and flows into the room through the fresh air outlet, and at the moment, the fresh air device achieves the function of introducing fresh air into the room. Therefore, the technical scheme provided by the invention can solve the technical problem that the peak cultivation function cannot be realized by the fresh air device in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
Fig. 1 shows a schematic airflow direction diagram of a switching port of a fresh air device for exhausting indoor sewage according to a first embodiment of the present invention;
Fig. 2 shows a schematic airflow direction diagram of a fresh air inlet of a fresh air device according to a first embodiment of the present invention when the fresh air inlet is used for introducing outdoor fresh air;
Fig. 3 shows a schematic airflow direction diagram when a switching port and a fresh air inlet of a fresh air device according to a first embodiment of the present invention are both used for introducing outdoor fresh air;
fig. 4 shows a schematic structural view of a communication opening provided according to a first embodiment of the present invention in a first open state;
fig. 5 is a schematic view showing a structure of a communication opening provided in accordance with a first embodiment of the present invention in a second opened state;
fig. 6 is a schematic structural view showing a switching mechanism according to a first embodiment of the present invention;
FIG. 7 is an exploded view of a fresh air device according to a first embodiment of the present invention;
FIG. 8 is a schematic view showing the structure of a seal cap according to a first embodiment of the present invention;
fig. 9 shows a schematic structural view of a volute provided according to a first embodiment of the present invention;
fig. 10 is a schematic structural diagram of an indoor unit of an air conditioner according to a second embodiment of the present invention;
Fig. 11 is a schematic view showing an arrangement position of an air inlet portion of an indoor unit of an air conditioner according to a second embodiment of the present invention;
fig. 12 is a schematic diagram showing an arrangement position of a fresh air outlet portion of an indoor unit of an air conditioner according to a second embodiment of the present invention.
Wherein the above figures include the following reference numerals:
10. A fresh air case; 11, an indoor air inlet, 12, a fresh air outlet, 13, a switching port, 14, a switching air duct, 15, a communicating opening, 151, a first opening, 152, a second opening, 16, a connecting shell, 161, a first socket, 17, a fresh air inlet, 18, a motor mounting plate, 19, a volute, 191, a first fan blade mounting port, 192, a second fan blade mounting port, 110, a sealing cover, 20, a fresh air guiding structure, 21, a fresh air cavity, 22, a fresh air fan, 30, an air exhausting structure, 31, an air exhausting cavity, 32, an air exhausting fan, 40, a switching mechanism, 41, a first switching plate, 42, a second switching plate, 43, a driving gear, 44, a first driving rack, 45, a second driving rack, 50, an indoor machine shell, 51, a rear panel, 511, an air inlet portion, 52, a front panel, 521, a fresh air outlet portion, 60, an air guiding shell, 71, an air duct joint, 72, a fresh air duct joint, 80, a mounting bracket, 81 and a filter screen.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 9, according to an embodiment of the present invention, there is provided a fresh air device, which includes a fresh air casing 10, a fresh air introduction structure 20 and an exhaust structure 30, wherein an indoor air inlet 11, a fresh air outlet 12 and a switching port 13 are provided on the fresh air casing 10, the indoor air inlet 11 and the fresh air outlet 12 are both used for communicating with indoor air, the switching port 13 is used for communicating with outdoor air, the fresh air introduction structure 20 and the exhaust structure 30 are arranged in the fresh air casing 10 at intervals, the indoor air inlet 11 is communicated with an exhaust cavity 31 of the exhaust structure 30, and the fresh air outlet 12 is communicated with a fresh air cavity 21 of the fresh air introduction structure 20. The switching port 13 is selectively communicated with the fresh air chamber 21 or the air exhaust chamber 31, so that air flowing into the air exhaust chamber 31 from the indoor air inlet 11 flows out through the switching port 13, or fresh air introduced from the switching port 13 flows out from the fresh air outlet 12 after passing through the fresh air chamber 21.
By adopting the fresh air device provided by the embodiment, the working mode of the fresh air device can be changed by changing the communication mode of the switching port 13. Specifically, when the switching port 13 is communicated with the exhaust cavity 31, the indoor polluted air flows into the exhaust cavity 31 from the indoor air inlet 11 and flows out through the switching port 13, and at this time, the fresh air device achieves the function of exhausting the indoor polluted air. When the switching port 13 is communicated with the fresh air cavity 21, outdoor fresh air flows into the fresh air cavity 21 through the switching port 13 and flows into a room through the fresh air outlet 12, and at the moment, the fresh air device achieves the function of introducing fresh air into the room. Therefore, the fresh air device provided by the embodiment can solve the technical problem that the fresh air device in the prior art cannot realize the peak cultivation function.
Specifically, a fresh air fan 22 is installed in the fresh air cavity 21, and an air exhaust fan 32 is installed in the air exhaust cavity 31.
In this embodiment, a switching air duct 14 is further disposed in the fresh air casing 10, the switching air duct 14 is disposed between the fresh air induced air structure 20 and the air exhaust structure 30, one end of the switching air duct 14 forms a switching port 13, the other end of the switching air duct 14 has a communication opening 15, and the communication opening 15 has a first open state of communicating with the air exhaust cavity 31 and a second open state of communicating with the fresh air cavity 21, so that the switching port 13 is selectively communicated with the fresh air cavity 21 or the air exhaust cavity 31 through the communication opening 15. By adopting the structure, the structure layout in the fresh air case 10 can be optimized, the compactness of the structure arrangement is improved, meanwhile, the switching port 13 is conveniently switched to a state connected with the fresh air cavity 21 or the exhaust cavity 31, the switching stability is improved, and the functions of introducing fresh air and discharging air are conveniently and stably realized.
Specifically, the fresh air device in this embodiment further includes a switching mechanism 40, where the switching portion of the switching mechanism 40 is movably disposed at the communication opening portion 15, so that the communication opening portion 15 is in the first open state or the second open state under the switching action of the switching mechanism 40. By adopting the structure, the opening state of the communication opening can be conveniently selected according to actual needs, and the automatic switching is adopted, so that the automation degree of the structure is improved, and the control and operation of a user are facilitated.
In the present embodiment, the communication opening portion 15 includes a first opening 151 and a second opening 152 that communicate with each other, the first opening 151 being provided toward the exhaust chamber 31, and the second opening 152 being provided toward the fresh air chamber 21. The switching mechanism 40 includes a first switching plate 41 and a second switching plate 42, the first switching plate 41 is movably disposed at the first opening 151, the second switching plate 42 is movably disposed at the second opening 152, when the communication opening is in the first open state, the first switching plate 41 is moved to a position to avoid the first opening 151, the second switching plate 42 is moved to a position to cover the second opening 152, and when the communication opening is in the second open state, the first switching plate 41 is moved to a position to cover the first opening 151, the second switching plate 42 is moved to a position to avoid the second opening 152. By adopting the structure, stable switching can be conveniently carried out, so that the switching port 13 can be smoothly switched to the position communicated with the fresh air cavity 21 or the exhaust cavity 31, and the movement stability of the structure is improved.
The opening direction of the first opening 151 and the opening direction of the second opening 152 in the present embodiment are set at a preset angle, and the corresponding first switching plate 41 and second switching plate 42 are also set at a corresponding preset angle, so as to open or close the first opening 151 or the second opening 152, respectively. Preferably, the included angle between the opening direction of the first opening 151 and the opening direction of the second opening 152 in the present embodiment is 90 °, and the included angle between the first switching plate 41 and the second switching plate 42 is also 90 °, so that the first switching plate 41 and the second switching plate 42 are also arranged in a staggered manner, so that sufficient movement space is provided for both the first switching plate 41 and the second switching plate 42.
Specifically, the first switching plate 41 may be movably disposed at the first opening 151. Or the second switching plate 42 is movably disposed at the second opening 152. Or the first switching plate 41 is movably disposed at the first opening 151, and the second switching plate 42 is movably disposed at the second opening 152.
Preferably, the first switching plate 41 is movably disposed at the first opening 151, and the second switching plate 42 is movably disposed at the second opening 152. The movable range and the movable space required by the movable mode are small, the movable mode is convenient to realize, and smooth running of the movement is ensured.
In this embodiment, the switching mechanism 40 further includes a driving portion, which is in driving connection with the switching portion, and the driving portion includes a rack and pinion structure that is engaged with each other. By adopting the structure, the device has simple structure and reliable action.
Specifically, the switching mechanism 40 in the present embodiment includes a drive gear 43, a first drive rack 44, and a second drive rack 45. The first driving rack 44 is engaged with the driving gear 43, and the first driving rack 44 is connected with the first switching plate 41, so that the driving gear 43 drives the first switching plate 41 to move through the first driving rack 44. The second driving rack 45 is meshed with the driving gear 43, the first driving rack 44 and the second driving rack 45 are respectively located at two sides of the driving gear 43, and the second driving rack 45 is connected with the second switching plate 42, so that the driving gear 43 drives the second switching plate 42 to move through the second driving rack 45. By adopting the structure, the first driving rack 44 and the second driving rack 45 can be simultaneously driven to move through one driving gear 43, the structure is simple, the effect is reliable, and the first switching plate 41 and the second switching plate 42 can be conveniently and stably driven to move through the first driving rack 44 and the second driving rack 45 respectively. Specifically, the moving direction of the first driving rack 44 is opposite to the moving direction of the second driving rack 45 so as to close the second opening 152 when the first opening 151 is opened or to close the first opening 151 when the second opening 152 is opened.
Preferably, the first driving rack 44 and the second driving rack 45 in the present embodiment are located above and below the driving gear 43, respectively, the first switching plate 41 is disposed vertically to the first driving rack 44, and the second switching plate 42 is disposed flush or parallel to the second driving rack 45.
In this embodiment, the fresh air casing 10 has a connection casing 16, the connection casing 16 is used for enclosing the switching air duct 14, and the communication opening is disposed on the connection casing 16. A first socket 161 may be provided on a side wall of the connection housing 16, and the first socket 161 is adapted to the shape of the first switching plate 41 such that the first switching plate 41 is inserted into the first socket 161 and covers the first opening 151. Or a second socket may be provided on a side wall of the connection housing 16, the second socket being adapted to the shape of the second switching plate 42 such that the second switching plate 42 is inserted into the second socket and covers the second opening 152. Or a first socket 161 and a second socket are provided on the side wall of the connection housing 16, the first socket 161 and the second socket are provided at intervals, the first socket 161 is adapted to the shape of the first switching plate 41 so that the first switching plate 41 is inserted into the first socket 161 and covers the first opening 151, and the second socket is adapted to the shape of the second switching plate 42 so that the second switching plate 42 is inserted into the second socket and covers the second opening 152.
Preferably, a first socket 161 and a second socket are provided on a side wall of the connection case 16, the first socket 161 and the second socket being spaced apart, the first socket 161 being adapted to a shape of the first switching plate 41 such that the first switching plate 41 is inserted into the first socket 161 and covers the first opening 151, and the second socket being adapted to a shape of the second switching plate 42 such that the second switching plate 42 is inserted into the second socket and covers the second opening 152. With such a structural arrangement, it is possible to facilitate guiding the movement directions of the first and second switching plates 41 and 42 through the first and second sockets 161 and 42 and to define the positions of the first and second switching plates 41 and 42. In this way, when the first switching plate 41 is inserted into the first insertion hole 161 and covers the first opening 151, the position of the first switching plate 41 is restricted by the first insertion hole 161, and the sealing performance at the first opening 151 can be improved to some extent. When the second switching plate 42 is inserted into the second socket and covers the second opening 152, the sealing performance at the second opening 152 can be improved to some extent by restricting the position of the second switching plate 42 by the second socket.
In order to further improve the sealing performance of the first opening 151 and the second opening 152, a first seal ring is provided at the periphery of the first opening 151 and a second seal ring is provided at the periphery of the second opening 152 in the present embodiment.
Specifically, the fresh air housing 10 in this embodiment is further provided with a fresh air inlet 17, the fresh air inlet 17 is used for introducing outdoor fresh air, and the fresh air inlet 17 is communicated with the fresh air cavity 21, so that the outdoor fresh air introduced by the fresh air inlet 17 flows into the fresh air cavity 21. By adopting the structure, when the fresh air device realizes the fresh air function, the fresh air can be introduced only through the fresh air inlet 17 or simultaneously introduced through the fresh air inlet 17 and the switching port 13, so that different fresh air inlet modes can be realized according to the fresh air demand. Specifically, when fresh air is introduced through the fresh air inlet 17 and the switching port 13 at the same time, the fresh air inlet amount can be effectively increased, thereby effectively improving the indoor air quality.
Specifically, can set up the new trend export 12 in the one side of new trend casing 10, indoor air intake 11 and switching mouth 13 all set up in the opposite side of new trend casing 10, because new trend export 12 is used for to indoor discharge new trend, can set up new trend export 12 towards indoor user, all keep away from indoor user setting with indoor air intake 11 and switching mouth 13, avoid the influence to the air-out of new trend export 12, also improved the outward appearance aesthetic measure of new trend device. Or the indoor air inlet 11 is arranged above the switching port 13 so as to introduce a sufficient amount of sewage air through the indoor air inlet 11, so as to improve the sewage air effect. Or the fresh air outlet 12 is arranged on one side of the fresh air shell 10, the indoor air inlet 11 and the switching port 13 are arranged on the other side of the fresh air shell 10, and the indoor air inlet 11 is arranged above the switching port 13.
Preferably, in this embodiment, the fresh air outlet 12 is disposed on one side of the fresh air casing 10, the indoor air inlet 11 and the switching port 13 are disposed on the other side of the fresh air casing 10, and the indoor air inlet 11 is disposed above the switching port 13. By adopting the structural layout, fresh air can be conveniently discharged to better improve indoor air quality, appearance attractiveness is optimized, and pollution discharge air effect is also conveniently improved.
Specifically, the fresh air housing 10 is further provided with a fresh air inlet 17, the fresh air inlet 17 is used for introducing outdoor fresh air, and the fresh air inlet 17 is communicated with the fresh air cavity 21, so that the outdoor fresh air introduced by the fresh air inlet 17 flows into the fresh air cavity 21. The fresh air inlet 17, the indoor air inlet 11 and the switching port 13 are all positioned on the same side of the fresh air shell 10, the indoor air inlet 11 is positioned above the fresh air inlet 17, and the switching port 13 is arranged between the indoor air inlet 11 and the fresh air inlet 17. By adopting the structure, the structure layout is optimized, fresh air is conveniently introduced into a room, and the appearance is beautified by hiding the indoor air inlet 11, the switching port 13 and the fresh air inlet 17 at the other side.
In this embodiment, the fresh air casing 10 includes a motor mounting plate 18, a volute casing 19 and a sealing cover 110, where the volute casing 19 has a first fan blade mounting opening 191 and a second fan blade mounting opening 192 that are disposed at intervals, and the motor mounting plate 18 and the sealing cover 110 are respectively mounted on two sides of the volute casing 19, so as to enclose an exhaust cavity 31 and a fresh air cavity 21 with the first fan blade mounting opening 191 and the second fan blade mounting opening 192, respectively. The structure is simple, the production and the manufacture are convenient, the compactness of the structural layout is improved, and the disassembly and the assembly are also convenient.
Specifically, the fresh air device in this embodiment is configured to be installed in an indoor unit casing 50 of an indoor unit of an air conditioner, a sealing cover 110 is disposed opposite to a rear panel 51 of the indoor unit casing 50, a motor mounting plate 18 is disposed opposite to a front panel 52 of the indoor unit casing 50, a fresh air outlet 12 is disposed on the motor mounting plate 18, and an indoor air inlet 11, a switching port 13 and a fresh air inlet 17 are all disposed on the sealing cover 110. Generally, the rear panel 51 of the indoor unit casing 50 is disposed close to the wall, and the front panel 52 of the indoor unit casing 50 is disposed toward the user. With such a structural arrangement, the fresh air outlet 12 can be conveniently discharged through the front panel 52, so that fresh air can be smoothly blown into a room, and the quality of indoor air can be improved.
In this embodiment, the front panel 52 of the indoor unit casing 50 is provided with a fresh air outlet 521, and the fresh air device is located at the rear side of the indoor unit casing 50 to avoid the influence on other structures in the indoor unit casing 50, and meanwhile, the fresh air device is also arranged at the rear side of the indoor unit casing 50 to be conveniently communicated with the wall through holes so as to be conveniently communicated with the outdoor air. The fresh air device further includes an air guiding housing 60, the air guiding housing 60 extends from the rear panel 51 of the indoor unit housing 50 to the front panel 52 of the indoor unit housing 50, one end of the air guiding housing 60 is connected to the fresh air outlet 12, and the other end of the air guiding housing 60 is disposed toward the fresh air outlet 521. By adopting the structure, other structures in the indoor unit shell 50 can be avoided, and fresh air can be smoothly introduced into the fresh air outlet 521, so that the fresh air can smoothly enter the room, and the indoor air quality is better improved.
Generally, when an air conditioner is turned on, the indoor environment is usually closed, indoor polluted air cannot be timely discharged outdoors, and outdoor air cannot be timely introduced indoors, so that the higher the concentration of carbon dioxide is, the higher the harm to human body is. By adopting the fresh air device of the embodiment, outdoor fresh air can be sucked into a room in working, and indoor polluted air is discharged outdoors, so that the indoor air is kept fresh, and a user can obtain better function and comfort experience.
The fresh air component can introduce outdoor fresh air and discharge indoor polluted air, and can improve indoor air quality. This new trend subassembly except can the single tube draw the new trend (for installing the wind coupling in order to draw the new trend in new trend air intake 17 department promptly), can realize that double-barrelled new trend draws (all install the wind coupling in order to draw the new trend simultaneously through new trend air intake 17 and switching port 13), can increase the new trend amount of wind like this, can be fast to indoor air quality control.
In this embodiment, the switching between the single-tube induced draft and the double-tube induced draft is achieved by the gear switching mechanism 40. The utility model provides a switching mechanism 40 and have its new trend subassembly, new trend subassembly have two independent centrifugal fan (new trend motor and motor of airing exhaust) drive, can introduce outdoor new trend, discharge indoor dirty air, can improve indoor air quality. Through utilizing switching mechanism 40, this new trend subassembly can also realize double-barrelled new trend of drawing except that the new trend of single tube, can increase the new trend amount of wind like this, can be fast to indoor air quality control.
As can be seen in the drawings, a fresh air outlet 521 is provided in front of the air conditioning case, and the fresh air outlet 521 is used to discharge fresh air into the room. Two indoor air inlets 11 are arranged at the back of the air conditioner shell, and the two indoor air inlets 11 are used for introducing indoor polluted air into the air conditioner and then discharging the polluted air outdoors under the action of the air conditioner.
Referring to the attached drawings, the fresh air device is positioned below the air conditioner, and the fresh air device and the main air duct of the air conditioner independently operate, so that the fresh air device is not influenced by the change of the main air duct during operation. The fresh air device comprises a motor plate, an exhaust motor, a fresh air motor, an exhaust impeller, a fresh air impeller, a volute 19, a sealing cover 110, a filter screen 81, a mounting bracket 80, a switching mechanism 40, an exhaust air pipe joint 71 and a fresh air pipe joint 72. Wherein the filter screen 81 is assembled with the mounting bracket 80 and then assembled together in the sealing cap 110.
As can be seen from the drawings, the upper portion of the sealing cover 110 has two air inlets which communicate with the air inlet portion 511 of the indoor unit casing 50 for introducing indoor contaminated air. The sealing cover 110 is provided with a switching port 13 which is communicated with the exhaust air pipe joint 71. The sealing cover 110 is provided with a fresh air inlet 17, and the fresh air inlet 17 is communicated with the fresh air pipe joint 72.
Referring to the drawings, the switching mechanism 40 is composed of a lower rack assembly including a second rack and a second switching plate 42 (in a flat plate structure), the second rack and the second switching plate 42 being fixedly connected together, an upper rack assembly including a first rack and a first switching plate 41 (in a flat plate structure), and a driving gear 43, the first rack and the first switching plate 41 being fixedly connected together. The drive gear 43 simultaneously controls the movement of the lower rack assembly and the upper rack assembly in opposite directions.
The switching mechanism 40 is used to connect and disconnect the exhaust air duct joint 71 and the fresh air duct joint 72, so as to realize whether one duct draws fresh air or two ducts draw fresh air, and the switching mechanism 40 has two moving positions, and the two different positions are shown in fig. 1 and 2 (position 1) and fig. 3 (position 2). The switching mechanism 40 switches between the two positions by the forward and reverse rotation of the gear. When the position of the switching mechanism 40 is shown in fig. 1 and 2 (position 1), the air exhaust duct joint 71 is not communicated with the fresh air duct joint 72, and single-duct fresh air introduction is realized. When the switching mechanism 40 is shown in fig. 3 (position 2), the air exhaust air duct joint 71 is communicated with the fresh air duct joint 72, thereby realizing double-duct fresh air introduction.
As can be seen from the drawings, when the switching mechanism 40 is located at the position (position 1) of fig. 1 and 2, and the exhaust motor is turned on, indoor air flows into the exhaust fan 32 through the air inlet and the air inlet, then flows into the outdoor through the exhaust air duct joint 71, and the exhaust mode is realized, so that indoor dirty air is discharged out of the outdoor.
Referring to the drawings, on the basis of the air exhaust mode, the air exhaust motor is turned off, when the fresh air motor is turned on, outdoor air flows into the sealing cover 110 through the fresh air pipe joint 72, is filtered by the filter screen 81 and the filter screen 81, flows into a room under the drive of the fresh air impeller, and realizes a single-pipe induced air mode, and outdoor fresh air is introduced into the room to regulate indoor air.
As can be seen from the drawings, the switching mechanism 40 is switched to the position of fig. 3 (position 2), at which time the upper rack assembly will block the air flow from the air exhaust air duct joint 71 to the air exhaust impeller, and the air flow from the air exhaust air duct joint 71 to the fresh air impeller. When the fresh air motor is started, external air flows into the exhaust air pipe joint 71 and the fresh air pipe joint 72 simultaneously, then air flow is filtered through the filter screen 81, and the air flow flows into a room under the drive of the fresh air impeller, so that a double-pipe induced air mode can be realized, and the fresh air quantity is increased.
As shown in fig. 10 to 12, a second embodiment of the present invention provides an air conditioner indoor unit, where the air conditioner indoor unit includes a fresh air device, and the fresh air device is the fresh air device provided in the foregoing embodiment. The indoor unit of the air conditioner in this embodiment is mainly a cabinet air conditioner structure.
From the above description, it can be seen that the above embodiment of the present invention achieves the following technical effects of integrating fresh air introduction and blow-down air introduction, achieving single-pipe and double-pipe fresh air introduction, and improving indoor air quality.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters refer to like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of the present application, and the azimuth terms "inside and outside" refer to inside and outside with respect to the outline of each component itself.
Spatially relative terms, such as "above," "upper" and "upper surface," "above" and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the process is carried out, the exemplary term "above" may be included. Upper and lower. Two orientations below. The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (14)
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| CN202110920418.4A CN113639360B (en) | 2021-08-11 | 2021-08-11 | Fresh air device and air conditioner indoor unit having the same |
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| CN117128597B (en) * | 2022-05-20 | 2026-02-24 | 重庆美的制冷设备有限公司 | Fresh air part and air conditioner with same |
| CN115264605B (en) * | 2022-06-29 | 2025-08-19 | 青岛海尔空调器有限总公司 | Air conditioner |
| CN116642220A (en) * | 2023-05-16 | 2023-08-25 | 美的集团武汉制冷设备有限公司 | air conditioner |
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