An air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, which comprises a fan, an evaporator and an air outlet air duct. Air is blown out from the air outlet air duct after heat exchange by the evaporator under the driving of the fan. The air conditioner indoor unit further comprises a pulse sterilization assembly, which comprises a first driving device and a pulse ultraviolet light module connected with each other. The first driving device is used for driving the pulse ultraviolet light module to move to extend or contract to the air outlet air duct. The pulse ultraviolet light module can emit pulse light waves to the indoor environment and / or the evaporator. The air conditioner indoor unit can sterilize the interior of the indoor unit and selectively sterilize the indoor environment, so that the sterilization is more thorough. The sterilization area is wide by changing the coverage range of the pulse light generated by the pulse ultraviolet light module. Meanwhile, the heat dissipation performance can be improved by driving the pulse ultraviolet light module to rotate or open the bottom plate, so that the service life is long.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and more specifically, to an indoor unit for an air conditioner. Background Technology

[0002] With people paying increasing attention to indoor air quality, the market demand for health products is growing stronger. Air conditioners, as frequently used household appliances, are ubiquitous due to their ability to provide cool air in summer and heating in winter. However, due to inadequate daily maintenance and cleaning, air conditioners not only fail to kill bacteria but also easily cause air conditioning sickness, skin diseases, and other ailments due to the growth of microorganisms.

[0003] Air conditioner sterilization technology has received widespread attention. Pulse sterilization, in particular, utilizes intense pulsed white light to cause inert gas lamps to emit ultraviolet to infrared light, similar in intensity to the solar spectrum but much stronger, to kill microorganisms on surfaces. Existing pulse sterilization air conditioners typically include a separate sterilization lamp module and a pulse control module. The sterilization lamp module is fixedly mounted on the evaporator, middle frame, or air inlet to sterilize the air after heat exchange and the interior of the evaporator. Considering safety, the sterilization lamp module usually only sterilizes the interior of the air conditioner and cannot selectively sterilize the indoor environment, thus limiting its sterilization effect on the user's indoor environment.

[0004] In view of this, the present invention is hereby proposed. Summary of the Invention

[0005] The problem solved by this invention is that the sterilization module structure of existing air conditioners is unreasonable, resulting in poor sterilization effect and failure to sterilize the indoor environment.

[0006] To address the aforementioned problems, this invention provides an indoor air conditioning unit, comprising a fan, an evaporator, and an air outlet duct. Air, driven by the fan, passes through the evaporator for heat exchange and is then blown outward from the air outlet duct. The indoor air conditioning unit also includes a pulse sterilization component, which comprises a first driving device and a pulse ultraviolet light module connected together. The first driving device is used to drive the pulse ultraviolet light module to move to extend or retract into the air outlet duct. The pulse ultraviolet light module is capable of emitting pulsed light waves to the indoor environment and / or the evaporator.

[0007] This setting allows the pulsed ultraviolet light module to sterilize the inside of the air conditioner indoor unit. Under certain circumstances, the pulsed ultraviolet light module can extend outside the air outlet duct to sterilize the indoor environment where the air conditioner indoor unit is located. It has a wide radiation area and high sterilization efficiency to effectively avoid cross-infection.

[0008] Preferably, the first driving device includes a telescopic rod, a transmission module, and a first motor. The transmission module is fixed on the air outlet duct and meshes with the telescopic rod. The first motor is driven by the transmission module. A mounting bracket is provided at the end of the telescopic rod for assembling the pulsed ultraviolet light module.

[0009] This design features a simple structure, stable and reliable transmission, and ease of implementation. Preferably, the telescopic rod is arc-shaped, and the transmission module includes a driving wheel and a driven wheel. The driving wheel is connected to a first motor. Teeth are provided on both sides of the telescopic rod for meshing with the driving and driven wheels respectively. There are two driven wheels that cooperate with the driving wheel to constrain the movement of the telescopic rod. This design allows the telescopic rod to extend and retract along the air outlet duct, enabling the pulsed ultraviolet light module to move a long distance without being easily interfered with by the air outlet duct.

[0010] Preferably, the mounting bracket includes a connecting plate, with a first cantilever and a second cantilever respectively provided at both ends of the connecting plate. The first cantilever and the second cantilever are rotatably connected to the pulsed ultraviolet light module. This arrangement has a simple structure, minimizes obstruction when sterilizing components such as evaporators, and results in a better sterilization effect.

[0011] Preferably, the connecting plate is provided with a light-transmitting groove, which is located on the side of the bracket away from the lamp holder. This arrangement can effectively avoid blocking the pulsed light waves generated by the pulsed ultraviolet light module, resulting in good sterilization effect on components such as the evaporator, while also facilitating heat dissipation. Similarly, when sterilizing the interior of the indoor unit, the second driving device can drive the pulsed ultraviolet light module to rotate to adjust its posture, thereby allowing the generated pulsed light waves to radiate throughout the entire interior of the air conditioner indoor unit, resulting in more thorough sterilization.

[0012] Preferably, the pulse sterilization component further includes a second driving device, which is located on the first driving device and is used to drive the pulsed ultraviolet light module to rotate. When sterilizing the indoor environment, the first driving device causes the pulsed ultraviolet light module to extend out of the air outlet duct, and the second driving device rotates the pulsed ultraviolet light module 180 degrees to face the outside, facilitating outdoor sterilization; at the same time, the second driving device can be rotated periodically to achieve full coverage of the indoor environment during sterilization.

[0013] Preferably, the pulsed ultraviolet light module includes a detachably connected lamp holder and a bracket, with a germicidal lamp disposed between the lamp holder and the bracket. The lamp holder includes a base plate and a surrounding plate, with the base plate rotatably connected to the surrounding plate. The pulsed sterilization assembly further includes a second driving device disposed on the surrounding plate, used to drive the base plate to rotate. Typically, the pulsed ultraviolet light module is used to sterilize the interior of the indoor unit. In specific situations, the first driving device can extend outside the air duct to emit pulsed light waves into the indoor environment, using a fan to drive indoor airflow for rapid sterilization.

[0014] Preferably, the second driving device is mounted on the enclosure plate and includes a second motor, a transmission component, and a first gear. The enclosure plate is provided with a sliding groove, and the transmission component slides into the sliding groove. Both sides of the transmission component are respectively meshed with the second motor and the first gear. The first gear drives the base plate to rotate via a belt.

[0015] This setup features a simple structure, stable and reliable transmission, and is easy to manufacture. Preferably, the surface of the base plate is provided with a reflective film to reflect the pulsed light waves generated by the pulsed ultraviolet light module. This setup allows for more thorough sterilization of the indoor environment by adjusting the rotation angle of the base plate, enabling the pulsed light waves generated by the pulsed ultraviolet light module to radiate to different areas of the indoor environment through adjustment.

[0016] Preferably, the second driving device further includes a second gear. The first gear and the second gear are symmetrically arranged on the left and right sides of the second motor. There are two transmission components, which are respectively meshed with the first gear and the second gear. The base plate includes a first plate and a second plate arranged opposite to each other. The first plate is driven by the first gear, and the second plate is driven by the second gear. This arrangement allows the second motor to simultaneously drive the base plate to open to both sides, resulting in stable and reliable transmission and an aesthetically pleasing appearance.

[0017] Preferably, the pulsed ultraviolet light module includes a lamp holder, a sealing plug, a bracket, and a germicidal lamp. The bracket is positioned on the side of the lamp holder near the evaporator, and the germicidal lamp is positioned between the lamp holder and the bracket. The sealing plugs are positioned at both ends of the germicidal lamp. This design is simple and facilitates the assembly and disassembly of the germicidal lamp.

[0018] Preferably, the lamp holder includes a base plate, a surrounding plate is provided on the periphery of the base plate, a first slot is provided on the surrounding plate, and a first buckle is provided on the bracket at a position corresponding to the first slot, the first buckle being able to be limited and assembled into the first slot.

[0019] This design ensures that force applied from the outside of the lamp holder is applied to the first clip, making it easy to quickly remove the bracket from the lamp holder; at the same time, the first clip fills the groove to make the side wall of the lamp holder flat, resulting in a high overall aesthetic appeal.

[0020] Preferably, the bracket has an inwardly recessed mounting cavity on the side away from the lamp holder to accommodate the germicidal lamp, and a third notch is provided on the side of the bracket away from the lamp holder, which communicates with the mounting cavity. This design allows for the limiting assembly of the germicidal lamp through the cooperation of the bracket and the lamp holder, and the structure is simple and easy to assemble and disassemble.

[0021] Compared with the prior art, the air conditioner indoor unit described in this embodiment of the invention has the following beneficial effects: 1) The pulsed ultraviolet light module can sterilize the inside of the indoor unit and selectively sterilize the indoor environment, resulting in more thorough sterilization; 2) The coverage range of the pulsed light generated by the pulsed ultraviolet light module can be changed by the second driving device, resulting in a wider sterilization area; at the same time, the heat dissipation performance can be improved by driving the pulsed ultraviolet light module to rotate or open the bottom plate, resulting in a longer service life; 3) The structure is simple and easy to manufacture. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the indoor unit of the air conditioner described in Embodiment 1 of the present invention;

[0023] Figure 2 This is a longitudinal cross-sectional view of the indoor unit of the air conditioner described in Embodiment 1 of the present invention;

[0024] Figure 3 This is a partial structural schematic diagram of the pulse sterilization component described in Embodiment 1 of the present invention;

[0025] Figure 4 This is a schematic diagram of the pulsed ultraviolet light module described in Embodiment 1 of the present invention;

[0026] Figure 5 This is an exploded view of the pulsed ultraviolet light module described in Embodiment 1 of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the lamp holder described in Embodiment 1 of the present invention;

[0028] Figure 7 This is a schematic diagram of the structure of the bracket described in Embodiment 1 of the present invention;

[0029] Figure 8 This is a partial structural schematic diagram of the pulse sterilization component described in Embodiment 2 of the present invention;

[0030] Figure 9 This is a schematic diagram of the pulsed ultraviolet light module in the open state according to Embodiment 2 of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1-Evaporator; 2-Pulse sterilization component; 21-Pulse ultraviolet light module; 211-Lamp holder; 2111-Base plate; 21111-First plate; 21112-Second plate; 2112-Enclosure plate; 2113-Rotating shaft; 2114-Slot; 2115-First notch; 2116-Second notch; 2117-Through hole; 212-Sealing plug; 213-Bracket; 2131-Mounting cavity; 2132-Third notch; 2133-First buckle; 2134-Fourth notch; 214-Sterilizing lamp; 215 22-Light-transmitting plate; 23-Pulse electrical control module; 23-First drive device; 231-Telescopic rod; 232-Transmission module; 233-First motor; 234-Mounting bracket; 2341-Connecting plate; 2342-First cantilever; 2343-Second cantilever; 2344-Light-transmitting groove; 24-Second drive device; 241-Second motor; 242-Sliding groove; 243-Transmission component; 244-First gear; 245-Second gear; 246-Belt; 3-Fan; 4-Air guide plate; 5-Panel; 6-Base. Detailed Implementation

[0033] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the technical features in the various embodiments of the present invention can be combined with each other.

[0034] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] Unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. "Above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "below" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. The directional definitions of up, down, left, and right in this invention refer to the orientation perceived when facing the front panel of the air conditioner after normal installation.

[0036] Indoor air quality is closely related to human health. If there are respiratory virus carriers in poorly ventilated indoor spaces, there may be a risk of cross-infection, especially during the winter flu season. Furthermore, to ensure heating efficiency, doors and windows are often closed for extended periods, causing repeated air circulation and further increasing the probability of cross-infection. In recent years, users have become increasingly health-conscious, and pulse sterilization air conditioners have gradually gained popularity.

[0037] For safety reasons, the pulsed ultraviolet light module 21 is usually fixed inside the indoor unit of the air conditioner. It can only sterilize the evaporator 1 lamp component, but cannot sterilize the environment in which the indoor unit is located. Since microorganisms still exist in the environment, they will quickly multiply in a short period of time. For users, existing pulsed sterilization air conditioners cannot achieve indoor sterility, and their sterilization effect is limited. Therefore, the applicant proposes the following technical solution:

[0038] Example 1

[0039] like Figure 1-2 As shown, an indoor air conditioning unit includes a fan 3, an evaporator 1, and an air outlet duct. Air is blown outward from the air outlet duct after passing through the evaporator 1 for heat exchange driven by the fan 3. The indoor air conditioning unit also includes a pulse sterilization component 2, which includes a first driving device 23 and a pulse ultraviolet light module 21 connected to each other. The first driving device 23 is used to drive the pulse ultraviolet light module 21 to extend and retract within the air outlet duct. The pulse ultraviolet light module 21 can emit pulse light waves into the room.

[0040] This configuration allows the pulsed ultraviolet light module 21 to extend outside the air duct under certain conditions to thoroughly sterilize the indoor environment where the air conditioner indoor unit is located, thereby avoiding cross-infection. Of course, when the pulsed ultraviolet light module 21 sterilizes the indoor environment, it is necessary to determine whether there are users in the room through infrared detection, radar detection, facial recognition, etc., to ensure that no one is in the room during sterilization. The relevant user detection technology is existing technology.

[0041] The indoor unit of the air conditioner also includes a base 6, a panel 5, and an air guide plate 4. An evaporator 1 is mounted on the base 6. The panel 5 and air guide plate 4 are located on the side of the evaporator 1 furthest from the base 6. The air guide plate 4 is located at the outlet end of the air duct and below the panel 5, used to open or close the air outlet. The specific structure and assembly relationship of the panel 5 and air guide plate 4 are existing technologies and will not be described in detail here. Preferably, the first driving device 23 is fixed to the base 6 or the volute, and the pulsed ultraviolet light module 21 is located inside the air duct.

[0042] The pulse sterilization component 2 also includes a pulse electronic control module 22, which is electrically connected to the pulse ultraviolet light module 21. The pulse electronic control module 22 is located at the end of the middle frame or the evaporator 1, which makes full use of the internal space of the air conditioner indoor unit and results in a compact structure. The specific structure of the pulse electronic control module 22 is prior art and will not be described in detail here.

[0043] Preferably, the air guide plate 4 is provided with an avoidance notch, and the pulsed ultraviolet light module 21 is embedded in the avoidance notch. The bottom surface of the pulsed ultraviolet light module 21 is flush with the outer wall surface of the air guide plate 4, together forming the appearance surface of the air conditioner indoor unit. This arrangement allows the pulsed ultraviolet light module 21 to sterilize the indoor environment directly without opening the air guide plate 4, or the pulsed ultraviolet light module 21 to extend out of the air outlet duct to sterilize the indoor environment after the air guide plate 4 is opened.

[0044] As an example of the present invention, the first driving device 23 includes a telescopic rod 231, a transmission module 232, and a first motor 233. The transmission module 232 is fixedly mounted on the air outlet duct and meshes with the telescopic rod 231. The first motor 233 is driven by the transmission module 232. A mounting bracket 234 is provided at the end of the telescopic rod 231 for mounting the pulsed ultraviolet light module 21. This configuration is simple in structure and easy to manufacture.

[0045] like Figure 3-4 As shown, the telescopic rod 231 is arc-shaped. The transmission module 232 contains a driving wheel and a driven wheel. The driving wheel is connected to the first motor 233. Teeth are provided on both sides of the telescopic rod 231 for meshing with the driving wheel and driven wheel respectively. There are two driven wheels, which cooperate with the driving wheel to constrain the movement of the telescopic rod 231. This design allows the telescopic rod 231 to extend and retract along the air outlet duct, enabling the pulsed ultraviolet light module 21 to move a long distance without being easily interfered with by the air outlet duct.

[0046] Preferably, the pulse sterilization component 2 further includes a second driving device 24, which is located on the mounting bracket 234 and is used to drive the pulse ultraviolet light module 21 to rotate and adjust. Specifically, the pulse ultraviolet light module 21 is positioned facing the evaporator 1 to sterilize the interior of the indoor unit; when sterilizing the indoor environment, the first driving device 23 causes the pulse ultraviolet light module 21 to extend out of the air outlet duct, and the second driving device 24 rotates the pulse ultraviolet light module 21 180° to face the outside, facilitating outdoor sterilization; at the same time, the second driving device 24 can be rotated periodically to achieve full coverage of the indoor environment during sterilization.

[0047] As an example of the present invention, the mounting bracket 234 includes a connecting plate 2341, with a first cantilever 2342 and a second cantilever 2343 respectively disposed at both ends of the connecting plate 2341. The first cantilever 2342 and the second cantilever 2343 are respectively movably connected to the pulsed ultraviolet light module 21. Preferably, the second driving device 24 includes a second motor 241, which can be disposed on the connecting plate 2341, the first cantilever 2342, or the second cantilever 2343, for driving the pulsed ultraviolet light module 21 to rotate. The specific driving structure is prior art.

[0048] Preferably, the connecting plate 2341 is provided with a light-transmitting groove 2344. This setting can effectively avoid blocking the pulse light waves generated by the pulse ultraviolet light module 21, which has a good sterilization effect on components such as the evaporator 1 and is also conducive to heat dissipation. Similarly, when sterilizing the inside of the indoor unit, the second driving device 24 can drive the pulse ultraviolet light module 21 to rotate to adjust its posture, so that the generated pulse light waves radiate throughout the entire interior of the air conditioner indoor unit, making sterilization more thorough.

[0049] like Figure 3-7 As shown, the pulsed ultraviolet light module 21 includes a lamp holder 211, a sealing plug 212, a bracket 213, and a germicidal lamp 214. The bracket 213 is set on the side of the lamp holder 211 near the evaporator 1. The germicidal lamp 214 is set between the lamp holder 211 and the bracket 213. Sealing plugs 212 are set at both ends of the germicidal lamp 214. The germicidal lamp 214 is electrically connected to the pulse electronic control module 22. This structure is simple and facilitates the assembly and disassembly of the germicidal lamp 214.

[0050] As an example of the present invention, the lamp holder 211 includes a base plate 2111, a surrounding plate 2112 is provided around the base plate 2111, and a pivot 2113 is provided on the surrounding plate 2112. A limiting groove is provided on the first cantilever 2342 or the second cantilever 2343, and the pivot 2113 is fitted into the limiting groove. Preferably, there are two pivots 2113 symmetrically arranged on both sides of the base plate 2111. Preferably, the surrounding plate 2112 is provided with a first notch 2115, a second notch 2116, and a first slot 2114, with the first notch 2115 and the second notch 2116 located on the left and right sides of the first slot 2114, respectively. This arrangement facilitates the deformation of the side wall where the first slot 2114 is located under stress and facilitates the assembly and disassembly of the bracket 213. Preferably, the dimensions of the first notch 2115 and the second notch 2116 can be the same or different. Preferably, the surrounding plate 2112 is provided with a through hole 2117 for wiring.

[0051] As an example of the present invention, the side of the bracket 213 away from the lamp holder 211 is recessed inward to form a mounting cavity 2131 for accommodating the germicidal lamp 214. A third notch 2132 is provided on the side of the bracket 213 away from the lamp holder 211, and the third notch 2132 communicates with the mounting cavity 2131 to allow pulsed light to pass through. This arrangement, through the cooperation of the bracket 213 and the lamp holder 211, enables the germicidal lamp 214 to be positioned and assembled, resulting in a simple structure that is easy to assemble and disassemble.

[0052] Preferably, the pulsed ultraviolet light module 21 further includes a light-transmitting plate 215, which can block the third notch 2132. This arrangement has a simple structure and does not affect the sterilization effect of the pulsed light; at the same time, it avoids the condensate generated by the evaporator 1 from contacting the germicidal lamp 214, thereby affecting the safety of use.

[0053] As an example of the present invention, a first buckle 2133 is provided on the outer side of the bracket 213, and a first slot 2114 is provided on the lamp holder 211 at a corresponding position to the first buckle 2133. The first buckle 2133 can be limited and fitted into the first slot 2114. This arrangement ensures that force applied from the outside of the lamp holder 211 acts on the first buckle 2133, facilitating the quick removal of the bracket 213 from the lamp holder 211; at the same time, the first buckle 2133 fills the fitting groove, making the side wall of the lamp holder 211 flat and improving the overall aesthetics. Preferably, there are four first buckles 2133 symmetrically arranged on the left and right sides of the bracket 213. The structure is simple and aesthetically pleasing.

[0054] Preferably, a fourth notch 2134 is provided at one end of the bracket 213. The fourth notch 2134 communicates with the mounting cavity 2131 and is adjacent to the through hole 2117. This arrangement is simple in structure and facilitates wiring. Preferably, the germicidal lamp 214 can be a xenon lamp or an ultraviolet lamp; preferably, the germicidal lamp 214 is a xenon lamp, which outputs a high-level pulse of 5ms every 1s, requiring an excitation time of 2 seconds, for a total of 120 pulses. The pulse frequency can be adjusted according to the number of bacteria, for example, by first being fast and then slowing down within each sterilization cycle.

[0055] When the air conditioner is running, the pulsed ultraviolet light module 21 is located inside the air outlet duct and sterilizes components such as the evaporator 1. The relative angle of the pulsed ultraviolet light module 21 can be adjusted slightly by the second drive device 24, so that the sterilization inside the indoor unit is more thorough. When no one is in the room and sterilization of the indoor environment is required, the pulsed ultraviolet light module 21 is extended outside the air outlet duct by the first drive device 23, and the pulsed ultraviolet light module 21 is rotated 180° by the second drive device 24 so that the sterilization lamp 214 faces outwards from the air conditioner to sterilize the indoor environment. By periodically adjusting the tilt angle of the pulsed ultraviolet light module 21 slightly, its coverage area is further increased, and the sterilization is more uniform and thorough.

[0056] Example 2

[0057] like Figure 8-9 An indoor air conditioning unit includes a fan 3, an evaporator 1, and an air outlet duct. Air is blown outward from the air outlet duct after passing through the evaporator 1 for heat exchange driven by the fan 3. The indoor air conditioning unit also includes a pulse sterilization component 2, which includes a first driving device 23 and a pulse ultraviolet light module 21 connected to each other. The first driving device 23 is used to drive the pulse ultraviolet light module 21 to extend and retract within the air outlet duct. The pulse ultraviolet light module 21 can emit pulse light waves into the room.

[0058] Typically, the pulsed ultraviolet light module 21 is used to sterilize the interior of the indoor unit. Under certain circumstances, the first drive device 23 can extend out of the air duct to emit pulsed light waves to the indoor environment, and the fan 3 drives the indoor air to flow so as to quickly sterilize the indoor environment.

[0059] Preferably, the pulsed ultraviolet light module 21 includes a lamp holder 211, with a bracket 213 disposed on the side of the lamp holder 211 near the evaporator 1. A germicidal lamp 214 is disposed between the lamp holder 211 and the bracket 213. The germicidal lamp 214 can generate pulsed light waves toward the evaporator side. The lamp holder 211 includes a base plate 2111 and a surrounding plate 2112, with the base plate 2111 and the surrounding plate 2112 rotatably connected. The pulsed sterilization assembly 2 also includes a second driving device 24 for selectively opening the base plate 2111. This configuration enables the pulsed ultraviolet light module 21 to simultaneously send pulsed light waves to both the inside and outside of the indoor unit, thereby quickly achieving sterilization of the indoor environment.

[0060] Specifically, after the air conditioner is started, the pulsed ultraviolet light module 21 is located in the air outlet duct and generates pulsed light waves to sterilize the interior of the indoor unit. When no one is in the room and rapid sterilization is required, or when no one is in the room and thorough sterilization is required, the pulsed ultraviolet light module 21 is driven to extend out of the air outlet duct by the first driving device 23, and then the base plate 2111 is rotated and opened by the second driving device 24, so that the pulsed ultraviolet light module 21 can send pulsed light waves outward from both sides, with one side facing the indoor environment of the indoor unit, so that sterilization is more thorough. At the same time, opening the base plate 2111 can improve the heat dissipation performance of the pulsed ultraviolet light module 21 and extend its service life.

[0061] Preferably, the surface of the base plate 2111 is provided with a reflective film, which can reflect the pulsed light waves generated by the pulsed ultraviolet light module 21. This setting allows the pulsed light waves generated by the pulsed ultraviolet light module 21 to radiate to different areas of the indoor environment by adjusting the rotation angle of the base plate 2111 during indoor sterilization, resulting in more thorough sterilization. As an example of the present invention, the mounting bracket 234 is detachably connected to the lamp holder 211, for example, by screwing or snapping.

[0062] As an example of the present invention, the second driving device 24 is mounted on the enclosure 2112 and includes a second motor 241, a transmission component 243, and a first gear 244. The enclosure 2112 is provided with a sliding groove 242, and the transmission component 243 slides into the sliding groove 242. The two sides of the transmission component 243 are respectively meshed with the second motor 241 and the first gear 244. The first gear 244 drives the base plate 2111 to rotate through a belt 246. This configuration has a simple structure, stable and reliable transmission, and is easy to manufacture.

[0063] Preferably, the second driving device 24 further includes a second gear 245. The first gear 244 and the second gear 245 are symmetrically arranged on the left and right sides of the second motor 241. There are two transmission components 243, which are respectively meshed with the first gear 244 and the second gear 245. The base plate 2111 includes a first plate 21111 and a second plate 21112 arranged opposite to each other. The first plate 21111 is driven by the first gear 244, and the second plate 21112 is driven by the second gear 245. This arrangement allows the second motor 241 to simultaneously drive the base plate 2111 to open to both sides, resulting in stable and reliable transmission and an aesthetically pleasing appearance.

[0064] When the air conditioner is running, the pulsed ultraviolet light module 21 is located inside the air outlet duct and sterilizes components such as the evaporator 1 and the air. When no one is in the room and sterilization of the indoor environment is required, the pulsed ultraviolet light module 21 extends out of the air outlet duct through the first driving device 23, and the base plate 2111 of the lamp holder 211 is opened through the second driving device 24. The pulsed ultraviolet light module 21 can send pulsed light waves to both sides at the same time, with one side facing outwards from the air conditioner to sterilize the indoor environment. By adjusting the tilt angle of the base plate 2111, the sterilization coverage range can be changed, making the sterilization of the indoor environment by the pulsed ultraviolet light module 21 more thorough.

[0065] While the present invention has been disclosed above, it is not limited thereto. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the invention; therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. An air conditioner indoor unit comprising a fan (3), an evaporator (1), an air outlet air duct, and a guide vane (4), air being blown out from the air outlet air duct after being heat-exchanged by the evaporator (1) under the drive of the fan (3), characterized in that, The air conditioner indoor unit further comprises a pulse sterilization assembly (2), the pulse sterilization assembly (2) comprises a first driving device (23) and a pulse ultraviolet light module (21) connected with each other, the deflector (4) is provided with a avoiding gap, the pulse ultraviolet light module (21) is embedded in the avoiding gap, the first driving device (23) is used for driving the pulse ultraviolet light module (21) to move to extend or retract into the air outlet air duct, the pulse ultraviolet light module (21) can emit pulse light wave to the indoor environment and / or the evaporator (1); the first driving device (23) comprises a telescopic rod (231), a transmission module (232) and a first motor (233), the transmission module (232) is fixed on the air outlet air duct and is connected with the telescopic rod (231) in meshing, the first motor (233) is drivingly connected with the transmission module (232), and the end of the telescopic rod (231) is provided with a mounting frame (234) for assembling the pulse ultraviolet light module (21). 2.The indoor unit of the air conditioner according to claim 1, characterized in that, The mounting frame (234) comprises a connecting plate (2341), the two ends of the connecting plate (2341) are respectively provided with a first cantilever (2342) and a second cantilever (2343), and the first cantilever (2342) and the second cantilever (2343) are respectively rotatably connected with the pulse ultraviolet light module (21). 3.The indoor unit of the air conditioner according to claim 2, characterized by, A light-transmitting groove (2344) is arranged on the connecting plate (2341), and the light-transmitting groove (2344) is arranged on the side, away from the lamp holder (211), of the support (213). 4.The indoor unit of the air conditioner according to claim 1, characterized by, The pulse sterilization assembly (2) further comprises a second driving device (24), the second driving device (24) is located on the first driving device (23) and is used for driving the pulse ultraviolet light module (21) to rotate. 5.The indoor unit of the air conditioner according to claim 1, characterized by, The pulse ultraviolet light module (21) comprises a lamp holder (211) and a support (213) which are detachably connected, a sterilization lamp (214) is arranged between the lamp holder (211) and the support (213), the lamp holder (211) comprises a bottom plate (2111) and a surrounding plate (2112), and the bottom plate (2111) is rotatably connected with the surrounding plate (2112); the pulse sterilization assembly (2) further comprises a second driving device (24), and the second driving device (24) is arranged on the surrounding plate (2112) and is used for driving the bottom plate (2111) to rotate. 6.The indoor unit of the air conditioner according to claim 5, characterized by, The second driving device (24) is mounted on the surrounding plate (2112) and comprises a second motor (241), a transmission member (243) and a first gear (244), the surrounding plate (2112) is provided with a sliding groove (242), the transmission member (243) is slidably arranged in the sliding groove (242), the two sides of the transmission member (243) are respectively connected with the second motor (241) and the first gear (244) in meshing, and the first gear (244) drives the bottom plate (2111) to rotate through a belt (246). 7.The indoor unit of the air conditioner according to any one of claims 1-6, characterized in that, The pulse ultraviolet light module (21) comprises a lamp holder (211), a sealing plug (212), a bracket (213), and a sterilization lamp (214), the bracket (213) is arranged on the side close to the evaporator (1) of the lamp holder (211), the sterilization lamp (214) is arranged between the lamp holder (211) and the bracket (213), and the sealing plug (212) is arranged at both ends of the sterilization lamp (214). 8.The indoor unit of the air conditioner according to claim 7, characterized by, The lamp holder (211) comprises a bottom plate (2111), a surrounding plate (2112) is arranged on the circumferential side of the bottom plate (2111), a first clamping groove (2114) is arranged on the surrounding plate (2112), a first buckle (2133) is arranged at a position corresponding to the first clamping groove (2114) of the bracket (213), and the first buckle (2133) can be limitingly assembled into the first clamping groove (2114). 9.The indoor unit of the air conditioner according to claim 7, characterized in that, The bracket (213) is recessed inward on the side away from the lamp holder (211) to form a mounting cavity (2131) for accommodating the sterilization lamp (214), and a third gap (2132) is arranged on the side of the bracket (213) away from the lamp holder (211), and the third gap (2132) is in communication with the mounting cavity (2131).

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