Floor-standing air conditioner indoor unit and air conditioner

Abstract

This utility model provides a vertical air conditioner indoor unit and air conditioner. The vertical air conditioner indoor unit includes a shell, an evaporator, a water tray, a volute duct, a supply fan, a first baffle, a second baffle, a third baffle, a fresh air duct, a fresh air fan, an exhaust duct, and an exhaust fan. The third baffle is movably disposed at the upper end of the lower air duct to open and close the upper end of the lower air duct. The first end of the fresh air duct is connected to the outside, and the second end of the fresh air duct is connected to the lower air duct. The fresh air fan is disposed inside the fresh air duct. The first end of the exhaust duct is connected to the outside, and the second end of the exhaust duct is connected to the upper air duct. The exhaust fan is disposed inside the exhaust duct. This design can effectively solve the technical problems of pollution accumulation when the unit is off, poor pollutant cleaning effect, and odor release at the moment of start-up. It improves the cleanliness and freshness of the air supplied at the moment of start-up, and has a good self-cleaning effect, improving indoor air quality, ensuring user health, and realizing a brand-new user experience of "unobtrusive purification - instant health".

Description

Technical Field

[0001] This utility model relates to the field of air conditioner technology, and in particular to a vertical air conditioner indoor unit and an air conditioner having the vertical air conditioner indoor unit. Background Technology

[0002] Vertical air conditioner indoor units are a common type of air conditioner in homes and commercial spaces, mainly used for cooling and heating in large spaces such as living rooms and offices.

[0003] During air conditioner operation, condensation occurs on the evaporator surface and inside the air duct of the indoor unit of a floor-standing air conditioner. To prevent mold growth or dust accumulation from condensation residue, the conventional method is to dry the condensation on the evaporator surface and inside the air duct using high temperatures. However, this method is insufficient to effectively clean contaminants on the evaporator surface and inside the air duct, nor can it perform self-cleaning of the air inside the floor-standing air conditioner's indoor unit. Consequently, when the air conditioner is turned off for an extended period, the air remaining inside the indoor unit becomes contaminated due to the poor circulation in the sealed environment. This contamination can lead to the accumulation of allergens such as dust mites and mold spores. When the air conditioner is turned on again after a long period of inactivity, the residual contaminated air from the indoor unit is directly released into the room, producing odors and affecting indoor air quality and the health of the user. Utility Model Content

[0004] To achieve the primary objective of this utility model, it provides a vertical air conditioner indoor unit that effectively solves the technical problems of pollution accumulation during shutdown, poor pollutant cleaning effect, and odor release upon startup. This improves the cleanliness and freshness of the air supplied upon startup, and also has a good self-cleaning effect, thereby improving indoor air quality, ensuring user health, and achieving a new user experience of "seamless purification - instant health." Furthermore, it enhances heat exchange effect and efficiency to improve user comfort.

[0005] To achieve the second objective of this utility model, this utility model provides an air conditioner having the above-mentioned vertical air conditioner indoor unit.

[0006] To achieve the primary objective of this utility model, a vertical air conditioner indoor unit is provided, comprising a casing, an evaporator, a drip tray, a volute duct, a supply fan, a first baffle, a second baffle, a third baffle, a fresh air duct, a fresh air fan, an exhaust duct, and an exhaust fan. The rear side of the casing has an air inlet, and the casing also has an upper air outlet and a lower air outlet. The volute duct is located within the casing and includes an upper air duct, a volute section, and a lower air duct connected sequentially. The upper air duct connects to the upper air outlet, and the lower air duct connects to the lower air outlet. The supply fan is located within the volute section, which has an air inlet. The device is located between the air inlet and the volute air duct. The water collection tray is located below the evaporator. The first baffle is movably set at the upper air outlet to open or close the upper air outlet. The second baffle is movably set at the lower air outlet to open or close the lower air outlet. The third baffle is movably set at the upper end of the lower air duct to open or close the upper end of the lower air duct. The first end of the fresh air duct is connected to the outside, and the second end of the fresh air duct is connected to the lower air duct. The fresh air fan is installed inside the fresh air duct. The first end of the exhaust air duct is connected to the outside, and the second end of the exhaust air duct is connected to the upper air duct. The exhaust fan is installed inside the exhaust air duct.

[0007] When the indoor unit of this vertical air conditioner performs the start-up pre-processing operation, i.e., the user sends a start-up signal to the indoor unit via remote control, the indoor unit turns on and directly performs the start-up pre-processing operation. At this time, the first baffle closes the upper air outlet, the second baffle closes the lower air outlet, and the third baffle opens the upper port of the lower air duct, allowing the exhaust air duct, the volute air duct, and the fresh air duct to circulate. The supply fan is turned off, while the fresh air fan and the exhaust fan are turned on. Under the action of the fresh air fan, fresh outdoor air is sent from the fresh air duct into the volute air duct. The residual air is mixed and, under the action of the exhaust fan, is sent to the outside through the exhaust duct. This removes the polluted air remaining in the volute duct due to the closed environment and internal contaminants, thus completing the air replacement inside the volute duct. This ensures that the air inside the volute duct is fresh, preventing residual polluted air from being sent into the room when the vertical air conditioner indoor unit is turned on. This improves the cleanliness and freshness of the air delivered at the moment of startup, thereby improving indoor air quality, ensuring user health, preventing odors when turned on, and achieving a new user experience of "imperceptible purification - instant health".

[0008] When the indoor unit of this vertical air conditioner is in rapid cooling mode, the first baffle opens the upper air outlet, the third baffle closes the upper port of the lower air duct, the exhaust fan is turned off, and the supply fan is turned on. This allows indoor air to enter the casing through the air inlet, and after heat exchange and cooling by the evaporator, it enters the volute section of the volute air duct through the air inlet. Since the third baffle closes the upper port of the lower air duct, the cooled air after heat exchange and cooling is sent from the upper air duct of the volute air duct to the upper air outlet to be delivered into the room, forming a shower-like cooling air supply. This allows the cool air to fall gently from above, avoiding direct cold air blowing on the human body, improving user comfort, and enhancing the cooling and heat exchange effect and efficiency. The fresh air fan can be turned on selectively, and the second baffle opens the lower air outlet, allowing fresh outdoor air to be delivered from the fresh air duct into the lower air duct of the volute duct under the action of the fresh air fan. Since the third baffle closes the upper end of the lower air duct, fresh outdoor air is directly delivered into the room from the lower air outlet to improve indoor air freshness, thereby improving indoor air quality and ensuring user health.

[0009] When the indoor unit of this vertical air conditioner is in rapid heating mode, the first baffle closes the upper air outlet, the second baffle opens the lower air outlet, and the third baffle opens the upper port of the lower air duct. The exhaust fan is turned off, and the supply fan is turned on, allowing indoor air to enter the casing through the air inlet. After heat exchange and heating by the evaporator, the air enters the volute section of the volute air duct through the air inlet. Since the first baffle closes the upper air outlet, the heated air is sent from the lower air duct of the volute air duct to the lower air outlet to be delivered into the room, forming a carpet-like distribution of heated air. This allows the heated air to diffuse evenly from the ground and then rise naturally, meeting the ergonomic requirement of "warm feet and cool ceiling," improving user comfort, reducing heat accumulation at the top, thereby reducing energy consumption, and improving heating and heat exchange effects and efficiency. The fresh air fan can be turned on, allowing fresh outdoor air to be delivered from the fresh air duct into the lower duct of the volute duct and mixed with the heated air after heat exchange. The air is then delivered into the room through the lower air outlet to improve indoor air freshness, thereby improving indoor air quality and ensuring user health.

[0010] When the indoor unit of this vertical air conditioner operates in stable heat exchange mode for cooling or heating, the first baffle opens the upper air outlet, the second baffle opens the lower air outlet, and the third baffle opens the upper port of the lower air duct. The exhaust fan is turned off, and the supply fan is turned on, allowing indoor air to enter the casing through the air inlet. After heat exchange and heating by the evaporator, the air enters the volute section of the volute air duct through the air inlet, and then is delivered to the upper and lower air outlets through the upper and lower air ducts respectively, thus improving the uniformity and stability of indoor heat exchange. The fresh air fan can be selectively activated, allowing fresh outdoor air to be delivered from the fresh air duct into the lower air duct of the volute air duct and mixed with the heat-exchanged air before being delivered into the room through the lower air outlet, thereby improving indoor air freshness and air quality, and ensuring user health.

[0011] When the indoor unit of this utility model of a vertical air conditioner is performing the second stage of the self-cleaning operation after shutdown, that is, when the user sends a shutdown signal to the indoor unit of the vertical air conditioner via remote control, the indoor unit of the vertical air conditioner receives the shutdown signal and performs the self-cleaning operation after shutdown. It controls the first baffle to close the upper air outlet, the second baffle to close the lower air outlet, and the third baffle to open the upper port of the lower air duct, so that the exhaust air duct, the volute air duct and the fresh air duct can circulate. It also controls the supply air fan, the fresh air fan and the exhaust fan to start. Under the action of the fresh air fan, fresh outdoor air is sent into the volute air duct from the fresh air duct to clean the condensate and dust stains remaining in the volute air duct. Indoor air enters the casing through the air inlet and passes through the evaporator to clean the condensate and dust stains remaining on the surface of the evaporator. Under the action of the exhaust fan, the polluted airflow after cleaning the inside of the volute air duct and the surface of the evaporator is sent out to the outside through the exhaust air duct to avoid the accumulation of pollution after shutdown.

[0012] Therefore, the vertical air conditioner indoor unit of this utility model can effectively solve the technical problems of pollution accumulation when the unit is off, poor pollutant cleaning effect, and odor release at the moment of startup. This improves the cleanliness and freshness of the air delivered at the moment of startup, and has a good self-cleaning effect, thereby improving indoor air quality, ensuring user health, and realizing a brand-new user experience of "imperceptible purification - instant health". It can also improve the heat exchange effect and heat exchange efficiency to enhance the user comfort experience.

[0013] A further option is that the indoor unit of the vertical air conditioner also includes a spray cleaning device, which includes a booster pump, a delivery pipe and an atomizing nozzle. The inlet end of the booster pump is connected to the cleaning agent storage box, the outlet end of the booster pump is connected to the delivery pipe, and the liquid outlet of the delivery pipe is equipped with an atomizing nozzle, which is located inside the housing and facing the evaporator.

[0014] A further option is to position the atomizing nozzle horizontally corresponding to the upper end of the evaporator, or to position the atomizing nozzle vertically above the evaporator.

[0015] A further option is to have multiple atomizing nozzles, arranged in the width direction of the evaporator, and / or, arranged in the height direction of the evaporator.

[0016] A further option is that the spray cleaning device also includes a rotation control mechanism, which controls the rotation of the atomizing nozzle.

[0017] A further option is that the indoor unit of the vertical air conditioner also includes a fourth baffle, which is movably installed in the fresh air duct to open or close the fresh air duct.

[0018] A further option is that the indoor unit of the vertical air conditioner also includes a fifth baffle, which is movably installed in the exhaust duct to open or close the exhaust duct.

[0019] A further option is that the supply air fan is a centrifugal fan; and / or, the fresh air fan is a centrifugal fan; and / or, the exhaust fan is a centrifugal fan.

[0020] A further embodiment is that the vertical air conditioner indoor unit also includes a first sensor, which is disposed on the evaporator to detect the surface humidity of the evaporator; and / or, the vertical air conditioner indoor unit also includes a second sensor, which is disposed within the volute air duct to detect the VOC concentration inside the volute air duct; and / or, the vertical air conditioner indoor unit also includes a third sensor, which is disposed within the volute air duct to detect the particulate matter concentration inside the volute air duct; and / or, the vertical air conditioner indoor unit also includes a fourth sensor, which is disposed within the volute air duct to detect odorous gases inside the volute air duct.

[0021] A further option is that the upper air outlet is located at the upper end of the housing; and / or, the lower air outlet is located at the lower front side of the housing.

[0022] To achieve the second objective of this utility model, this utility model provides an air conditioner, including a vertical air conditioner indoor unit, which is the vertical air conditioner indoor unit described above. Attached Figure Description

[0023] Figure 1 This is a cross-sectional view of an embodiment of the vertical air conditioner indoor unit of this utility model.

[0024] Figure 2 This is a schematic diagram of the spray cleaning device and the evaporator working together in an embodiment of the vertical air conditioner indoor unit of this utility model.

[0025] Figure 3 This is a first-view structural diagram of the spray cleaning device in an embodiment of the vertical air conditioner indoor unit of this utility model.

[0026] Figure 4This is a second-view structural diagram of the spray cleaning device in an embodiment of the vertical air conditioner indoor unit of this utility model.

[0027] Figure 5 This is a schematic diagram of the airflow path during the pre-processing operation of the vertical air conditioner indoor unit embodiment of this utility model.

[0028] Figure 6 This is a schematic diagram of the airflow path when the indoor unit of the vertical air conditioner of this utility model is executing the rapid cooling mode.

[0029] Figure 7 This is a schematic diagram of the airflow path when the indoor unit of the vertical air conditioner of this utility model is executing the rapid heating mode.

[0030] Figure 8 This is a schematic diagram of the airflow path in a stable heat exchange mode for an embodiment of the vertical air conditioner indoor unit of this utility model.

[0031] Figure 9 This is a schematic diagram of the airflow path during the first stage of the self-cleaning operation of the indoor unit of the vertical air conditioner according to an embodiment of this utility model.

[0032] Figure 10 This is a schematic diagram of the airflow path during the second stage of the self-cleaning operation of the indoor unit of the vertical air conditioner according to an embodiment of this utility model.

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present invention or its application or use. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0035] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0036] In this invention, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not exist between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0037] All terms used in this invention (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having the meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0039] See Figure 1 The vertical air conditioner indoor unit of this embodiment includes a housing 11, an evaporator 15, a water tray 16, a volute duct 13, and a blower 14. The rear side of the housing 11 is provided with an air inlet 113, and the housing 11 is provided with an upper air outlet 111 and a lower air outlet 112. The volute duct 13 is located inside the housing 11 and includes an upper air duct 131, a volute section 133, and a lower air duct 132 connected in sequence. The upper air duct 131 is connected to the upper air outlet 111, and the lower air duct 132 is connected to the lower air outlet 112. The blower 14 is located inside the volute section 133, and the volute section 133 is provided with an air inlet. The evaporator 15 is located between the air inlet 113 and the volute duct 13, and the water tray 16 is located below the evaporator 15.

[0040] Furthermore, the vertical air conditioner indoor unit of this embodiment also includes a first baffle 121, a second baffle 122, a third baffle 123, a fresh air duct 171, a fresh air fan 172, an exhaust air duct 181, and an exhaust fan 182. The first baffle 121 is movably disposed at the upper air outlet 111 to open or close the upper air outlet 111, the second baffle 122 is movably disposed at the lower air outlet 112 to open or close the lower air outlet 112, and the third baffle 123... 3. An activity is set at the upper port of the downdraft duct 132 to open or close the upper port of the downdraft duct 132. The first end of the fresh air duct 171 is connected to the outside, and the second end of the fresh air duct 171 is connected to the downdraft duct 132. The fresh air fan 172 is set inside the fresh air duct 171. The first end of the exhaust duct 181 is connected to the outside, and the second end of the exhaust duct 181 is connected to the updraft duct 131. The exhaust fan 182 is set inside the exhaust duct 181.

[0041] When the indoor unit of the vertical air conditioner in this embodiment performs the start-up preprocessing operation, see [link / reference]. Figure 5 When the user sends a start-up signal to the indoor unit of the vertical air conditioner via remote control, the indoor unit turns on and directly performs the start-up pre-processing operation. At this time, the first baffle 121 closes the upper air outlet 111, the second baffle 122 closes the lower air outlet 112, and the third baffle 123 opens the upper port of the lower air duct 132, allowing the exhaust air duct 181, the volute air duct 13, and the fresh air duct 171 to circulate. The supply fan 14 is turned off, and the fresh air fan 172 and the exhaust fan 182 are turned on. Under the action of the fresh air fan 172, fresh outdoor air is sent from the fresh air duct 171 into the volute air duct 13 and interacts with the volute air duct. The residual air inside the volute duct 13 mixes with the air inside the volute duct and, under the action of the exhaust fan 182, is sent to the outside through the exhaust duct 181. This process removes the polluted air remaining in the volute duct 13 due to the closed environment and lack of circulation, thus completing the air replacement inside the volute duct 13. This ensures that the air inside the volute duct 13 is fresh air, preventing the residual polluted air in the volute duct 13 of the vertical air conditioner indoor unit from being sent into the room when the unit is turned on. This improves the cleanliness and freshness of the air supplied at the moment of startup, thereby improving indoor air quality, ensuring user health, preventing odors when the unit is turned on, and achieving a new user experience of "imperceptible purification - instant health".

[0042] When the indoor unit of the vertical air conditioner in this embodiment is in rapid cooling mode, see [link / reference]. Figure 6 The first baffle 121 opens the upper air outlet 111, the third baffle 123 closes the upper port of the lower air duct 132, and the exhaust fan 182 is turned off, while the supply fan 14 is turned on. This allows indoor air to enter the housing 11 through the air inlet 113, and after heat exchange and cooling by the evaporator 15, it enters the volute section 133 of the volute air duct 13 through the air inlet. Since the third baffle 123 closes the upper port of the lower air duct 132, the cooled air after heat exchange and cooling is sent from the upper air duct 131 of the volute air duct 13 to the upper air outlet 111 to be sent into the room, forming a shower-style cooling air supply. This allows the cool air to fall gently from above, avoiding direct cold air blowing on the human body, improving user comfort, and enhancing the cooling and heat exchange effect and efficiency. The fresh air fan 172 can be turned on, and the second baffle 122 opens the lower air outlet 112, so that under the action of the fresh air fan 172, fresh outdoor air is sent from the fresh air duct 171 into the lower air duct 132 of the volute duct 13. Since the third baffle 123 closes the upper port of the lower air duct 132, fresh outdoor air is directly sent into the room from the lower air outlet 112 to improve the freshness of indoor air, thereby improving indoor air quality and ensuring the health of users.

[0043] In order to provide better shower-style cooling air delivery, the upper air outlet 111 in this embodiment is located at the upper end of the housing 11.

[0044] When the indoor unit of the vertical air conditioner in this embodiment is in rapid heating mode, see [link / reference]. Figure 7 The first baffle 121 closes the upper air outlet 111, the second baffle 122 opens the lower air outlet 112, and the third baffle 123 opens the upper port of the lower air duct 132. The exhaust fan 182 is turned off, and the supply fan 14 is turned on, so that indoor air enters the housing 11 through the air inlet 113. After heat exchange and heating by the evaporator 15, it enters the volute part 133 of the volute air duct 13 through the air inlet. Since the first baffle 121 closes the upper air outlet 111, the heated air after heat exchange and heating is sent from the lower air duct 132 of the volute air duct 13 to the lower air outlet 112 to be sent into the room, forming a carpet-like hot air supply. The hot air spreads evenly from the ground and then rises naturally, which meets the ergonomic requirement of "warm feet and cool ceiling", improves user comfort, and reduces heat accumulation at the top, thereby reducing energy consumption and improving heating and heat exchange effect and efficiency. The fresh air fan 172 can be turned on, so that under the action of the fresh air fan 172, fresh outdoor air is sent from the fresh air duct 171 into the lower air duct 132 of the volute duct 13 and mixed with the heated air after heat exchange, and then sent into the room from the lower air outlet 112 to improve the freshness of indoor air, thereby improving indoor air quality and ensuring the health of users.

[0045] In order to better deliver hot air in a carpet-like manner, the lower air outlet 112 in this embodiment is located at the lower front side of the housing 11.

[0046] When the indoor unit of the vertical air conditioner in this embodiment is performing cooling or heating in a stable heat exchange mode, see [link to relevant documentation]. Figure 8 The first baffle 121 opens the upper air outlet 111, the second baffle 122 opens the lower air outlet 112, and the third baffle 123 opens the upper port of the lower air duct 132. The exhaust fan 182 is turned off, and the supply fan 14 is turned on, so that indoor air enters the housing 11 through the air inlet 113. After heat exchange and heating by the evaporator 15, it enters the volute part 133 of the volute air duct 13 through the air inlet. Then it is sent to the upper air outlet 111 and the lower air outlet 112 through the upper air duct 131 and the lower air duct 132 respectively to be sent into the room, so as to improve the uniformity and stability of indoor heat exchange. The fresh air fan 172 can be turned on, so that under the action of the fresh air fan 172, fresh outdoor air is sent from the fresh air duct 171 into the lower air duct 132 of the volute duct 13 to mix with the heat-exchanged air, and then sent into the room from the lower air outlet 112 to improve the freshness of indoor air, thereby improving indoor air quality and ensuring the health of users.

[0047] When the indoor unit of the vertical air conditioner in this embodiment is performing the second stage of the self-cleaning operation after shutdown, see [link to relevant documentation]. Figure 10When a user sends a shutdown signal to the indoor unit of the vertical air conditioner via remote control, the indoor unit receives the signal and performs a shutdown self-cleaning operation. This involves controlling the first baffle 121 to close the upper air outlet 111, the second baffle 122 to close the lower air outlet 112, and the third baffle 123 to open the upper port of the lower air duct 132. This allows airflow between the exhaust duct 181, the volute duct 13, and the fresh air duct 171, and controls the operation of the supply fan 14, the fresh air fan 172, and the exhaust fan 182. The fresh air fan 172 then... Under normal conditions, fresh outdoor air is introduced into the volute duct 13 through the fresh air duct 171 to clean the residual condensate and dust stains inside the volute duct 13. Indoor air enters the housing 11 through the air inlet 113 and passes through the evaporator 15 to clean the residual condensate and dust stains on the surface of the evaporator 15. Under the action of the exhaust fan 182, the polluted airflow that has been cleaned inside the volute duct 13 and on the surface of the evaporator 15 is sent out to the outside through the exhaust duct 181 to avoid the accumulation of pollution after the machine is shut down.

[0048] Therefore, the vertical air conditioner indoor unit of this embodiment can effectively solve the technical problems of pollution accumulation when the unit is off, poor pollutant cleaning effect, and odor release at the moment of startup. This improves the cleanliness and freshness of the air delivered at the moment of startup, and has a good self-cleaning effect, thereby improving indoor air quality, ensuring user health, and realizing a new user experience of "imperceptible purification - instant health". It can also improve heat exchange effect and heat exchange efficiency to enhance user comfort.

[0049] To prevent air leakage in the fresh air duct 171, the indoor unit of the vertical air conditioner in this embodiment also includes a fourth baffle 124. The fourth baffle 124 is movably disposed in the fresh air duct 171 to open or close the fresh air duct 171. That is, when it is necessary to supply outdoor fresh air, the fourth baffle 124 is controlled to open the fresh air duct 171 and the fresh air fan 172 is controlled to turn on; when it is not necessary to supply outdoor fresh air, the fourth baffle 124 is controlled to close the fresh air duct 171 and the fresh air fan 172 is controlled to turn off, so as to prevent the heat exchange airflow in the downflow duct 132 connected to the fresh air duct 171 from leaking out of the fresh air duct 171 and affecting the heat exchange efficiency.

[0050] To prevent air leakage in the exhaust duct 181, the indoor unit of the vertical air conditioner in this embodiment also includes a fifth baffle 125. The fifth baffle 125 is movably disposed in the exhaust duct 181 to open or close the exhaust duct 181. That is, when it is necessary to exhaust air to the outside, the fifth baffle 125 is controlled to open the exhaust duct 181 and the exhaust fan 182 is controlled to turn on; when it is not necessary to exhaust air to the outside, the fifth baffle 125 is controlled to close the exhaust duct 181 and the exhaust fan 182 is controlled to turn off, so as to prevent the heat exchange airflow in the upper air duct 131 connected to the exhaust duct 181 from leaking out of the exhaust duct 181 and affecting the heat exchange efficiency.

[0051] Specifically, in this embodiment, the supply air fan 14 is a centrifugal fan, the fresh air fan 172 is a centrifugal fan, and the exhaust fan 182 is a centrifugal fan.

[0052] In order to sense the environment of the evaporator 15, the indoor unit of the vertical air conditioner in this embodiment also includes a first sensor, which is disposed on the evaporator 15 to detect the surface humidity of the evaporator 15. Specifically, the first sensor in this embodiment may be a humidity sensor or a temperature and humidity sensor.

[0053] To sense the environment within the volute duct 13, this embodiment of the vertical air conditioner indoor unit also includes a second sensor, which is disposed within the volute duct 13 to detect the VOC concentration inside the volute duct 13. Furthermore, this embodiment of the vertical air conditioner indoor unit also includes a third sensor, which is disposed within the volute duct 13 to detect the particulate matter concentration inside the volute duct 13. Moreover, this embodiment of the vertical air conditioner indoor unit also includes a fourth sensor, which is disposed within the volute duct 13 to detect odorous gases inside the volute duct 13. The second sensor in this embodiment is a VOC concentration sensor, used to quickly detect the concentration of volatile organic compounds (VOCs) in the environment. The volatilization of VOCs leads to air pollution, participates in the formation of ozone and fine particulate matter, and has adverse effects on human health, such as causing respiratory problems. The third sensor in this embodiment is a laser sensor to detect the concentration of particulate matter in the air. Furthermore, the fourth sensor in this embodiment is an odor sensor, capable of detecting gases with irritating or foul odors such as formaldehyde and hydrogen sulfide in the air.

[0054] Therefore, during the pre-start operation of the indoor unit of the vertical air conditioner in this embodiment, see... Figure 5The system automatically activates the compressor, outdoor fan, and other components, entering normal cooling or heating mode, only when the second sensor detects a VOC concentration ≤0.1ppm inside the volute duct 13, the third sensor detects a particulate matter concentration ≤10μg / m³ inside the volute duct 13, and the fourth sensor detects the absence of odorous gases inside the volute duct 13. It then controls the fifth baffle 125 to close the exhaust duct 181 and shuts down the exhaust fan 182, preventing odors from spreading indoors and affecting indoor air quality and user health. Subsequently, during operation in cooling, heating, or stable heat exchange modes, the second sensor continuously monitors the VOC concentration inside the volute duct 13, the third sensor continuously monitors the particulate matter concentration inside the volute duct 13, and the fourth sensor continuously monitors odorous gases inside the volute duct 13. Based on these detection results, the system dynamically adjusts the opening and closing of the fresh air duct 171 and the start / stop of the fresh air fan 172 to balance energy consumption and the needs for air cleanliness and freshness.

[0055] Combination Figures 2 to 4 In this embodiment, the indoor unit of the vertical air conditioner also includes a spray cleaning device 19. The spray cleaning device 19 includes a booster pump 192, a delivery pipe 193 and an atomizing nozzle 194. The inlet end of the booster pump 192 is connected to the cleaning agent storage box 191, and the outlet end of the booster pump 192 is connected to the delivery pipe 193. The outlet of the delivery pipe 193 is provided with an atomizing nozzle 194. The atomizing nozzle 194 is located inside the housing 11 and is positioned towards the evaporator 15.

[0056] Therefore, when the evaporator 15 needs cleaning, the booster pump 192 of the vertical air conditioner indoor unit in this embodiment is activated to pressurize and deliver the cleaning agent in the cleaning agent storage box 191 to the delivery pipe 193. The atomizing nozzle 194 then sprays the cleaning agent towards the evaporator 15 to clean it. The drip tray 16 located below the evaporator 15 collects the condensate and cleaning stains generated by the evaporator 15 and discharges them from the vertical air conditioner indoor unit through the drain pipe 161. The spray cleaning device 19 of the vertical air conditioner indoor unit in this embodiment can spray cleaning agent towards the evaporator 15 through the atomizing nozzle 194 to perform self-cleaning of the evaporator 15. The self-cleaning effect is good, improving indoor air quality, ensuring user health, and enhancing heat exchange effect and efficiency, thereby improving user comfort.

[0057] To further improve the self-cleaning effect of the evaporator 15, in this embodiment, the atomizing nozzle 194 is positioned horizontally corresponding to the upper end of the evaporator 15, or the atomizing nozzle 194 is positioned vertically above the evaporator 15, so that the cleaning agent sprayed by the atomizing nozzle 194 can impact the dirt adhering to the outer surface of the evaporator 15 from top to bottom, and under the impact of the cleaning agent's own gravity, the evaporator 15 can be cleaned in all directions.

[0058] To further clean the evaporator 15 comprehensively, this embodiment uses multiple atomizing nozzles 194, arranged in both the width (W) and height (H) directions of the evaporator 15. Preferably, the spray cleaning device 19 further includes a rotation control mechanism that controls the rotation of the atomizing nozzles 194, thereby adjusting their spray direction for comprehensive cleaning of the evaporator 15. Specifically, the rotation control mechanism in this embodiment can be a motor.

[0059] Therefore, in this embodiment, the indoor unit of the vertical air conditioner performs... Figure 10 Before the second stage of the shutdown self-cleaning operation shown, first execute... Figure 9 The first stage of the self-cleaning operation shown is as follows: When the user sends a shutdown signal to the indoor unit of the vertical air conditioner via the remote control, the indoor unit receives the shutdown signal and executes the first stage of the self-cleaning operation. This involves controlling the first baffle 121 to close the upper air outlet 111, the second baffle 122 to close the lower air outlet 112, and the third baffle 123 to open the upper port of the lower air duct 132, allowing airflow between the exhaust duct 181, the volute duct 13, and the fresh air duct 171. It also controls the supply fan 14 to turn off and the fresh air fan 172 and the exhaust fan 182 to turn on. Under the action of 2, fresh outdoor air is sent into the volute duct 13 through the fresh air duct 171 to clean the residual condensate and dust stains inside the volute duct 13. Under the action of the exhaust fan 182, the polluted airflow after cleaning the inside of the volute duct 13 is sent out to the outside through the exhaust duct 181 to avoid the accumulation of pollution after shutdown. At the same time, the booster pump 192 of the spray cleaning device 19 is turned on to pressurize and deliver the cleaning agent in the cleaning agent storage box 191 to the delivery pipe 193, so that the atomizing nozzle 194 sprays the cleaning agent toward the evaporator 15 to clean the evaporator 15.

[0060] When the indoor unit of the vertical air conditioner in this embodiment is activated Figure 9 After the first stage of the self-cleaning operation shown in the figure reaches the preset cleaning time, the indoor unit of the vertical air conditioner in this embodiment will perform... Figure 10In the second stage of the shutdown self-cleaning operation, the booster pump 192 of the spray cleaning device 19 is turned off, thereby stopping the spraying of cleaning agent onto the evaporator 15. At this time, the surface humidity of the evaporator 15 is relatively high, so the blower fan 14 is turned on. Indoor air enters the housing 11 through the air inlet 113 and passes through the evaporator 15 to dry its surface. Then, under the action of the exhaust fan 182, the polluted airflow that has cleaned the inside of the volute duct 13 and the surface of the evaporator 15 is sent out to the outside through the exhaust duct 181 to avoid the accumulation of pollutants after shutdown, until the first... The sensor detects in real time that the surface humidity of the evaporator 15 meets the preset condition, the second sensor detects in real time that the VOC concentration inside the volute duct 13 meets the preset condition, the third sensor detects in real time that the particulate matter concentration inside the volute duct 13 meets the preset condition, and the fourth sensor detects in real time that the odor gas inside the volute duct 13 meets the preset condition. Only then will the stop and shutdown command be executed, thereby shutting down the supply fan 14, the fresh air fan 172, and the exhaust fan 182. The fourth baffle 124 moves to close the fresh air duct 171, and the fifth baffle 125 moves to close the exhaust duct 181.

[0061] The above embodiments are merely preferred examples of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles of this utility model patent application should be included within the scope of this utility model patent application.

Claims

1. A vertical air conditioner indoor unit, comprising a casing, an evaporator, a drip tray, a volute duct, and a blower fan, wherein the rear side of the casing is provided with an air inlet, and the casing is provided with an upper air outlet and a lower air outlet, the volute duct is located inside the casing and includes an upper air duct, a volute section, and a lower air duct connected in sequence, the upper air duct is connected to the upper air outlet, the lower air duct is connected to the lower air outlet, the blower fan is located inside the volute section, the volute section is provided with an air inlet, the evaporator is located between the air inlet and the volute duct, and the drip tray is located below the evaporator, characterized in that: The vertical air conditioner indoor unit further includes a first baffle, a second baffle, a third baffle, a fresh air duct, a fresh air fan, an exhaust air duct, and an exhaust fan. The first baffle is movably disposed at the upper air outlet to open or close the upper air outlet. The second baffle is movably disposed at the lower air outlet to open or close the lower air outlet. The third baffle is movably disposed at the upper end of the lower air duct to open or close the upper end of the lower air duct. The first end of the fresh air duct is connected to the outside, and the second end of the fresh air duct is connected to the lower air duct. The fresh air fan is disposed within the fresh air duct. The first end of the exhaust air duct is connected to the outside, and the second end of the exhaust air duct is connected to the upper air duct. The exhaust fan is disposed within the exhaust air duct.

2. The vertical air conditioner indoor unit according to claim 1, characterized in that: The vertical air conditioner indoor unit also includes a spray cleaning device, which includes a booster pump, a delivery pipe and an atomizing nozzle. The inlet end of the booster pump is connected to a cleaning agent storage box, and the outlet end of the booster pump is connected to the delivery pipe. The liquid outlet of the delivery pipe is provided with an atomizing nozzle, which is located inside the housing and faces the evaporator.

3. The vertical air conditioner indoor unit according to claim 2, characterized in that: The atomizing nozzle is positioned horizontally corresponding to the upper end of the evaporator, or the atomizing nozzle is positioned vertically above the evaporator.

4. The vertical air conditioner indoor unit according to claim 2, characterized in that: The number of atomizing nozzles is multiple, and the multiple atomizing nozzles are arranged in the width direction of the evaporator, and / or, the multiple atomizing nozzles are arranged in the height direction of the evaporator.

5. The vertical air conditioner indoor unit according to claim 2, characterized in that: The spray cleaning device also includes a rotation control mechanism, which controls the rotation of the atomizing nozzle.

6. The vertical air conditioner indoor unit according to claim 1, characterized in that: The vertical air conditioner indoor unit also includes a fourth baffle, which is movably disposed within the fresh air duct to open or close the fresh air duct.

7. The vertical air conditioner indoor unit according to claim 1, characterized in that: The vertical air conditioner indoor unit also includes a fifth baffle, which is movably disposed within the exhaust duct to open or close the exhaust duct.

8. The vertical air conditioner indoor unit according to claim 1, characterized in that: The air supply fan is a centrifugal fan; And / or, the fresh air fan is a centrifugal fan; And / or, the exhaust fan is a centrifugal fan.

9. The vertical air conditioner indoor unit according to claim 1, characterized in that: The vertical air conditioner indoor unit also includes a first sensor, which is disposed on the evaporator to detect the surface humidity of the evaporator; And / or, the vertical air conditioner indoor unit further includes a second sensor, which is disposed in the volute duct to detect the VOC concentration inside the volute duct; And / or, the vertical air conditioner indoor unit further includes a third sensor, which is disposed in the volute duct to detect the particulate matter concentration inside the volute duct; And / or, the vertical air conditioner indoor unit further includes a fourth sensor, which is disposed in the volute duct to detect odor gases inside the volute duct.

10. The vertical air conditioner indoor unit according to any one of claims 1 to 9, characterized in that: The upper air outlet is located at the upper end of the housing; And / or, the lower air outlet is located on the front side of the lower end of the housing.

11. An air conditioner, including a floor-standing indoor unit, characterized in that: The vertical air conditioner indoor unit is the vertical air conditioner indoor unit described in any one of claims 1 to 10.

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