Indoor unit of air conditioner

Abstract

The invention provides an air conditioner indoor unit which comprises a draught fan, an evaporator and an air outlet duct, air is driven by the draught fan to be subjected to heat exchange through the evaporator and then blown out from the air outlet duct, the air conditioner indoor unit further comprises a pulse sterilization assembly, and the pulse sterilization assembly comprises a first driving device and a pulse ultraviolet light module which are connected. The first driving device is used for driving the pulse ultraviolet light module to move so as to stretch out or retract to the air outlet duct, and the pulse ultraviolet light module can emit pulse light waves to the indoor environment and / or the evaporator. According to the air conditioner indoor unit, the interior of the indoor unit can be sterilized, meanwhile, the indoor environment can be selectively sterilized, and sterilization is more thorough; by changing the coverage range of pulsed light generated by the pulsed ultraviolet light module, the sterilization area is wide; meanwhile, the heat dissipation performance can be improved by driving the pulse ultraviolet light module to rotate or opening the bottom plate, and the service life is long.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an air conditioner indoor unit. Background Art

[0002] As people pay more attention to indoor air quality, the market demand for health is growing. Air conditioners are household appliances that are frequently used in daily life. They can provide cool air in summer and heating in winter. They are used more and more frequently. However, due to the lack of daily maintenance and cleaning, air conditioners cannot sterilize and breed microorganisms, which can easily cause air-conditioning diseases and skin diseases.

[0003] Air conditioner sterilization technology has received widespread attention. Pulse sterilization uses a pulse of strong white light to flash an inert gas lamp to emit ultraviolet to infrared light that is similar to the solar spectrum but more intense, thereby killing microorganisms on the surface. Existing pulse sterilization air conditioners usually include a separately installed sterilization lamp module and a pulse electronic control module, wherein the sterilization lamp module is fixedly mounted on the evaporator, middle frame or air inlet to sterilize the air that has undergone heat exchange and the inside of the evaporator. Considering the safety of use, the sterilization lamp module can usually only sterilize the inside of the air conditioner and cannot selectively sterilize the indoor environment. Its sterilization effect is limited for the indoor environment where the user is located.

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

[0005] The problem solved by the present invention is that the sterilization module of the existing air conditioner has an unreasonable structure, which results in poor sterilization effect and makes it impossible to sterilize the indoor environment.

[0006] To solve the above problems, the present invention provides an air-conditioning indoor unit, including a fan, an evaporator, and an air outlet duct. Driven by the fan, the air passes through the evaporator for heat exchange and is blown out from the air outlet duct. The air-conditioning indoor unit also includes a pulse sterilization component, which includes a first connected driving device and a pulse ultraviolet light module. The first driving device is used to drive the pulse ultraviolet light module to move so as to extend or retract into the air outlet duct. The pulse ultraviolet light module can emit pulse 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. In certain circumstances, the pulsed ultraviolet light module can extend out of 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 meshed with the telescopic rod. The first motor is drivingly connected to the transmission module. A mounting frame is provided at the end of the telescopic rod for assembling the pulsed ultraviolet light module.

[0009] The arrangement has a simple structure, stable and reliable transmission, and is easy to implement. Preferably, the telescopic rod is arc-shaped, and a driving wheel and a driven wheel are arranged in the transmission module. The driving wheel is connected to the first motor drive, and teeth are arranged on both sides of the telescopic rod for respectively meshing with the driving wheel and the driven wheel. The driven wheel has two teeth for cooperating with the driving wheel to constrain the movement of the telescopic rod. This arrangement enables the telescopic rod to telescope and move along the air outlet duct, and the pulsed ultraviolet light module has a long moving distance and is not easily interfered by the air outlet duct.

[0010] Preferably, the mounting frame includes a connecting plate, and a first cantilever and a second cantilever are respectively arranged at both ends of the connecting plate, and the first cantilever and the second cantilever are respectively rotatably connected to the pulsed ultraviolet light module. This arrangement has a simple structure, less obstruction when sterilizing components such as the evaporator, and a better sterilization effect.

[0011] Preferably, a light-transmitting groove is provided on the connecting plate, and the light-transmitting groove is provided on the side of the bracket away from the lamp holder. This arrangement can effectively avoid blocking the pulse light waves generated by the pulse ultraviolet light module, has a good sterilization effect on components such as the evaporator, and is also conducive to heat dissipation; similarly, when sterilizing the interior of the indoor unit, the second driving device can drive the pulse ultraviolet light module to rotate to adjust the posture, so that the generated pulse light waves radiate the entire interior of the air conditioner indoor unit, and sterilize more thoroughly.

[0012] Preferably, the pulse sterilization assembly further includes a second drive device, which is located on the first drive device and is used to drive the pulse ultraviolet light module to rotate. When sterilizing the indoor environment, the first drive device is used to extend the pulse ultraviolet light module out of the air outlet duct, and then the second drive device is used to rotate the pulse ultraviolet light module 180 degrees to face the outdoors, which is convenient for outdoor sterilization; at the same time, the second drive 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, a germicidal lamp is arranged between the lamp holder and the bracket, the lamp holder includes a bottom plate and a surrounding plate, the bottom plate is rotatably connected to the surrounding plate; the pulsed sterilization assembly also includes a second driving device, the second driving device is arranged on the surrounding plate, and is used to drive the bottom plate to rotate. Usually, the pulsed ultraviolet light module is used to sterilize the interior of the indoor unit. In certain cases, the first driving device can be extended out of the air outlet duct to emit pulsed light waves to the indoor environment, and the fan is used to drive the indoor air flow to quickly complete the sterilization of the indoor environment.

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

[0015] The structure of the setting is simple, the transmission is stable and reliable, and it is easy to produce and process. Preferably, a reflective film is provided on the surface of the bottom plate to reflect the pulse light waves generated by the pulsed ultraviolet light module. When sterilizing the indoor environment, the setting can adjust the rotation angle of the bottom plate to radiate the pulse light waves generated by the pulsed ultraviolet light module to different areas of the indoor environment, so as to sterilize more thoroughly.

[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, the transmission member has two members, which are respectively meshed with the first gear and the second gear; the bottom plate includes a first plate and a second plate arranged opposite to each other, the first plate is in transmission connection with the first gear, and the second plate is in transmission connection with the second gear. This arrangement can utilize the second motor to simultaneously drive the bottom plate to open to both sides, with stable and reliable transmission and beautiful appearance.

[0017] Preferably, the pulsed ultraviolet light module comprises a lamp holder, a sealing plug, a bracket, and a germicidal lamp, wherein the bracket is arranged on the lamp holder near the evaporator, the germicidal lamp is arranged between the lamp holder and the bracket, and the sealing plugs are arranged at both ends of the germicidal lamp. This arrangement has a simple structure and is convenient for disassembly and assembly of the germicidal lamp.

[0018] Preferably, the lamp holder includes a base plate, a surrounding plate is arranged around the base plate, the surrounding plate is provided with a first slot, and a first buckle is arranged at a position of the bracket corresponding to the first slot, and the first buckle can be limitedly assembled into the first slot.

[0019] This arrangement ensures that force can be applied to the first buckle from the outside of the lamp holder, making it easy to quickly remove the bracket from the lamp holder; at the same time, the side wall of the lamp holder is smooth by filling the matching groove with the first buckle, and the overall appearance is high.

[0020] Preferably, the bracket is recessed inwardly on a side away from the lamp holder to form an installation cavity for accommodating the germicidal lamp, and a third notch is provided on the side of the bracket away from the lamp holder, the third notch is connected to the installation cavity. This arrangement enables the germicidal lamp to be limitedly assembled through the cooperation between the bracket and the lamp holder, and has a simple structure and is easy to disassemble and assemble.

[0021] Compared with the prior art, the air-conditioning indoor unit described in the embodiment of the present invention has the following beneficial effects: 1) the pulsed ultraviolet light module can sterilize the inside of the indoor unit, and can selectively sterilize the indoor environment, making the sterilization more thorough; 2) the second driving device can change the coverage range of the pulsed light generated by the pulsed ultraviolet light module, and the sterilization area is wide; at the same time, by driving the pulsed ultraviolet light module to rotate or open the bottom plate, the heat dissipation performance can be improved and the service life is long; 3) the structure is simple and easy to produce and process. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a longitudinal cross-sectional schematic diagram of the air-conditioning indoor unit according to Embodiment 1 of the present invention;

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

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

[0026] Figure 5 This is a schematic diagram of an explosion of the pulsed ultraviolet light module described in Example 1 of the present invention;

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

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

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

[0030] Fig. 9 This is a structural schematic diagram of the pulsed ultraviolet light module in the open state described in Example 2 of the present invention.

[0031] Description of reference numerals:

[0032] 1-evaporator; 2-pulse sterilization component; 21-pulse ultraviolet light module; 211-lamp holder; 2111-bottom 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-installation cavity; 2132-third notch; 2133-first buckle; 2134-fourth notch; 214-germicidal lamp; 215 -light-transmitting plate; 22-pulse electric control module; 23-first driving device; 231-telescopic rod; 232-transmission module; 233-first motor; 234-mounting frame; 2341-connecting plate; 2342-first cantilever; 2343-second cantilever; 2344-light-transmitting slot; 24-second driving device; 241-second motor; 242-sliding slot; 243-transmission member; 244-first gear; 245-second gear; 246-belt; 3-fan; 4-wind guide plate; 5-panel; 6-base. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. It should be noted that the technical features in each embodiment 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 understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] Unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. The first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature. The up, down, left, right and other directional definitions in the present invention are the directions recognized when facing the front panel of the air conditioner after the air conditioner is normally installed.

[0036] Indoor air quality is closely related to human health. If there are respiratory virus carriers in a poorly ventilated room, there may be a risk of cross-infection, especially in winter when influenza is more likely to occur. In order to ensure the heating effect, doors and windows are usually closed for a long time to allow indoor air to circulate repeatedly, further increasing the probability of cross-infection among people. In recent years, users have paid more and more attention to their own health, and pulse sterilization air conditioners have gradually become popular among the public.

[0037] For safety reasons, the pulsed ultraviolet light module 21 is usually fixed inside the indoor unit of the air conditioner, which can only sterilize the lamp components of the evaporator 1, but cannot sterilize the environment where the indoor unit of the air conditioner is located. Since there are still microorganisms in the environment, they will breed rapidly in a short period of time; for users, the existing pulse sterilization air conditioner cannot achieve indoor sterility, and its sterilization effect is limited. For this reason, the applicant proposes the following technical solution:

[0038] Example 1

[0039] like Figure 1-2 As shown, an air-conditioning indoor unit includes a fan 3, an evaporator 1, and an air outlet duct. Driven by the fan 3, air passes through the evaporator 1 for heat exchange and is blown out from the air outlet duct. The air-conditioning indoor unit also includes a pulse sterilization component 2. The pulse sterilization component 2 includes a connected first driving device 23 and a pulse ultraviolet light module 21. The first driving device 23 is used to drive the pulse ultraviolet light module 21 to telescope and move in the air outlet duct. The pulse ultraviolet light module 21 can emit pulse light waves into the room.

[0040] This setting allows the pulsed ultraviolet light module 21 to extend out of the air outlet duct under certain circumstances 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 is a user in the room through infrared detection, radar detection, face recognition, etc. to ensure that there is no one in the room during sterilization. The relevant user detection technology is an existing technology.

[0041] The air conditioner indoor unit also includes a base 6, a panel 5, and an air guide plate 4. The evaporator 1 is arranged on the base 6. The panel 5 and the air guide plate 4 are arranged on the side of the evaporator 1 away from the base 6. The air guide plate 4 is arranged at the outlet end of the air outlet duct and is located on the lower side of the panel 5. It is used to open or close the air outlet. The specific structure and assembly relationship of the panel 5 and the air guide plate 4 are all prior art and are not described in detail here. Preferably, the first drive device 23 is fixed on the base 6 or the volute, and the pulsed ultraviolet light module 21 is located in the air outlet duct.

[0042] The pulse sterilization component 2 also includes a pulse electric control module 22, which is electrically connected to the pulse ultraviolet light module 21; the pulse electric control module 22 is arranged at the middle frame or the end of the evaporator 1, which can make full use of the internal space of the indoor unit of the air conditioner and has a compact structure. The specific structure of the pulse electric 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 escape notch, the pulsed ultraviolet light module 21 is embedded in the escape notch, and the lower 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 setting can directly use the pulsed ultraviolet light module 21 to sterilize the room when the air guide plate 4 is not opened, or extend the pulsed ultraviolet light module 21 out of the air outlet duct after the air guide plate 4 is opened to sterilize the indoor environment.

[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 meshed with the telescopic rod 231. The first motor 233 is drivingly connected to the transmission module 232. A mounting frame 234 is provided at the end of the telescopic rod 231 for assembling the pulsed ultraviolet light module 21. The structure of the arrangement is simple and convenient for production and processing.

[0045] like Figure 3-4 As shown, the telescopic rod 231 is arc-shaped, and a driving wheel and a driven wheel are arranged in the transmission module 232. The driving wheel is connected to the first motor 233 by driving, and teeth are arranged on both sides of the telescopic rod 231 for meshing with the driving wheel and the driven wheel respectively. There are two driven wheels for cooperating with the driving wheel to constrain the movement of the telescopic rod 231. This arrangement enables the telescopic rod 231 to telescopically move along the air outlet duct, and the pulsed ultraviolet light module 21 has a long moving distance and is not easily interfered 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 frame 234 and is used to drive the pulse ultraviolet light module 21 to rotate and adjust. Specifically, the pulse ultraviolet light module 21 is arranged toward the evaporator 1, and is used to sterilize the interior of the indoor unit; when sterilizing the indoor environment, the pulse ultraviolet light module 21 is extended out of the air outlet duct by the first driving device 23, and then the pulse ultraviolet light module 21 is rotated 180° toward the outdoors by the second driving device 24, so as to facilitate 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 frame 234 includes a connecting plate 2341, and a first cantilever 2342 and a second cantilever 2343 are respectively arranged at both ends of the connecting plate 2341, and the first cantilever 2342 and the second cantilever 2343 are respectively movably connected to the pulse ultraviolet light module 21. Preferably, the second driving device 24 includes a second motor 241, and the second motor 241 can be arranged on the connecting plate 2341 or the first cantilever 2342 or the second cantilever 2343, and is used to drive the pulse ultraviolet light module 21 to rotate, and its specific driving structure is the prior art.

[0048] Preferably, the connecting plate 2341 is provided with a light-transmitting groove 2344, which can effectively avoid blocking the pulse light waves generated by the pulse ultraviolet light module 21, has a good sterilization effect on components such as the evaporator 1, and is beneficial to heat dissipation; similarly, when sterilizing the interior of the indoor unit, the second driving device 24 can drive the pulse ultraviolet light module 21 to rotate to adjust the posture, so that the generated pulse light waves radiate the entire interior of the air-conditioning indoor unit, and sterilize more thoroughly.

[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 lamp holder 211 is provided with a bracket 213 on the side close to the evaporator 1, and the germicidal lamp 214 is provided between the lamp holder 211 and the bracket 213. Sealing plugs 212 are provided at both ends of the germicidal lamp 214, and the germicidal lamp 214 is electrically connected to the pulse electric control module 22. This arrangement has a simple structure and is convenient for disassembly and assembly of the germicidal lamp 214.

[0050] As an example of the present invention, the lamp holder 211 includes a bottom plate 2111, a surrounding plate 2112 is arranged on the peripheral side of the bottom plate 2111, a rotating shaft 2113 is arranged on the surrounding plate 2112, a limiting groove is arranged on the first cantilever 2342 or the second cantilever 2343, and the rotating shaft 2113 is assembled into the limiting groove in another way. Preferably, the rotating shaft 2113 is arranged in two and symmetrically on both sides of the bottom plate 2111. Preferably, the surrounding plate 2112 is provided with a first notch 2115, a second notch 2116, and a first card slot 2114, and the first notch 2115 and the second notch 2116 are respectively located on the left and right sides of the first card slot 2114. This arrangement facilitates the deformation of the side wall where the first card slot 2114 is located, and facilitates the disassembly and assembly of the bracket 213. Preferably, the sizes 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 an installation cavity 2131 for accommodating the germicidal lamp 214. The side of the bracket 213 away from the lamp holder 211 is provided with a third notch 2132, and the third notch 2132 is connected to the installation cavity 2131 for generating pulse light to pass through. This arrangement can limit the assembly of the germicidal lamp 214 through the cooperation of the bracket 213 and the lamp holder 211, and has a simple structure and is easy to disassemble and assemble.

[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 prevents the condensed water generated by the evaporator 1 from contacting the sterilization 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 position corresponding to the first buckle 2133, and the first buckle 2133 can be limitedly assembled in the first slot 2114. This arrangement ensures that force can be applied from the outer side of the lamp holder 211 to act on the first buckle 2133, so that the bracket 213 can be quickly removed from the lamp holder 211; at the same time, the side wall of the lamp holder 211 is flattened by filling the matching groove with the first buckle 2133, and the overall appearance is high. Preferably, there are four first buckles 2133 and they are symmetrically arranged on the left and right sides of the bracket 213. The arrangement structure is simple and the appearance is beautiful.

[0054] Preferably, a fourth notch 2134 is provided at one end of the bracket 213, and the fourth notch 2134 is connected to the mounting cavity 2131 and is provided adjacent to the through hole 2117. This arrangement has a simple structure and is convenient for 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 with a required excitation time of seconds every 1s, and outputs a total of 120 pulses, and its pulse frequency can be adjusted according to the number of bacteria, for example, first fast and then slow every time during the sterilization cycle.

[0055] When the air conditioner is running, the pulse ultraviolet light module 21 is located in the air outlet duct and sterilizes components such as the evaporator 1. The relative angle of the pulse ultraviolet light module 21 can be slightly adjusted through the second driving device 24, so that the sterilization inside the indoor unit is more thorough; when there is no one in the room and the indoor environment needs to be sterilized, the pulse ultraviolet light module 21 is extended out of the air outlet duct through the first driving device 23, and the pulse ultraviolet light module 21 is rotated 180° through the second driving device 24 so that the sterilization lamp 214 is facing the outside of the air conditioner to sterilize the indoor environment; by periodically adjusting the inclination angle of the pulse ultraviolet light module 21 by a small amount, its coverage range is further increased, and the sterilization is more uniform and thorough.

[0056] Example 2

[0057] like Figure 8-9 An air conditioner indoor unit includes a fan 3, an evaporator 1, and an air outlet duct. Driven by the fan 3, the air passes through the evaporator 1 for heat exchange and is blown out from the air outlet duct. The air conditioner indoor unit also includes a pulse sterilization component 2. The pulse sterilization component 2 includes a connected first driving device 23 and a pulse ultraviolet light module 21. The first driving device 23 is used to drive the pulse ultraviolet light module 21 to telescope and move in the air outlet duct. The pulse ultraviolet light module 21 can emit pulse light waves into the room.

[0058] Usually, the pulsed ultraviolet light module 21 is used to sterilize the interior of the indoor unit. Under certain circumstances, the first driving device 23 can be extended out of the air outlet duct to emit pulsed light waves to the indoor environment, and the fan 3 is used to drive the indoor air flow to quickly complete the sterilization of the indoor environment.

[0059] Preferably, the pulsed ultraviolet light module 21 includes a lamp holder 211, and a bracket 213 is provided on the lamp holder 211 near the evaporator 1. A germicidal lamp 214 is provided between the lamp holder 211 and the bracket 213. The germicidal lamp 214 can generate pulsed light waves toward the evaporator. The lamp holder 211 includes a bottom plate 2111 and a surrounding plate 2112, and the bottom plate 2111 is rotatably connected to the surrounding plate 2112. The pulsed sterilization component 2 also includes a second driving device 24 for driving the bottom plate 2111 to selectively open. This setting enables the pulsed ultraviolet light module 21 to simultaneously send pulsed light waves to 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 pulse ultraviolet light module 21 is located in the air outlet duct and generates pulse light waves to achieve sterilization inside the indoor unit; when there is no one in the room and quick sterilization is required or there is no one in the room and thorough sterilization is required, the pulse ultraviolet light module 21 is driven by the first driving device 23 to extend out of the air outlet duct, and then the bottom plate 2111 is rotated and opened by the second driving device 24, so that the pulse ultraviolet light module 21 can send pulse light waves outward from both sides, one side of which is facing the indoor environment of the indoor unit, so that the sterilization is more thorough; at the same time, by opening the bottom plate 2111, the heat dissipation performance of the pulse ultraviolet light module 21 can be improved, and the service life can be extended.

[0061] Preferably, a reflective film is provided on the surface of the bottom plate 2111, which can reflect the pulse light waves generated by the pulsed ultraviolet light module 21. This setting can make the pulse light waves generated by the pulsed ultraviolet light module 21 radiate to different areas of the indoor environment by adjusting the rotation angle of the bottom plate 2111 when sterilizing the indoor environment, so as to sterilize more thoroughly. As an example of the present invention, the mounting bracket 234 is detachably connected to the lamp holder 211, such as screw connection, clamp connection, etc.

[0062] As an example of the present invention, the second driving device 24 is installed on the enclosure 2112, including a second motor 241, a transmission member 243, and a first gear 244. The enclosure 2112 is provided with a sliding groove 242, and the transmission member 243 slides into the sliding groove 242. The two sides of the transmission member 243 are respectively meshed and connected with the second motor 241 and the first gear 244, and the first gear 244 drives the bottom plate 2111 to rotate through a belt 246. The arrangement is simple in structure, the transmission is stable and reliable, and it is easy to produce and process.

[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, the transmission member 243 has two parts, which are respectively meshed and connected with the first gear 244 and the second gear 245; the bottom plate 2111 includes a first plate 21111 and a second plate 21112 which are arranged opposite to each other, the first plate 21111 is in transmission connection with the first gear 244, and the second plate 21112 is in transmission connection with the second gear 245. This arrangement can utilize the second motor 241 to simultaneously drive the bottom plate 2111 to open to both sides, with stable and reliable transmission and beautiful appearance.

[0064] When the air conditioner is running, the pulse ultraviolet light module 21 is located in the air outlet duct and sterilizes the evaporator 1 and other components as well as the air; when there is no one in the room and the indoor environment needs to be sterilized, the pulse ultraviolet light module 21 is extended out of the air outlet duct through the first driving device 23, and the bottom plate 2111 of the lamp holder 211 is opened through the second driving device 24. The pulse ultraviolet light module 21 can send pulse light waves to both sides at the same time, one side of which is facing the outside of the air conditioner to sterilize the indoor environment; by adjusting the inclination angle of the bottom plate 2111, the sterilization coverage range can be changed, so that the pulse ultraviolet light module 21 can sterilize the indoor environment more thoroughly.

[0065] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. An air conditioner indoor unit, comprising a fan (3), an evaporator (1), and an air outlet duct, wherein the air is driven by the fan (3) to pass through the evaporator (1) for heat exchange and then blown out from the air outlet duct, wherein: The air conditioner indoor unit also includes a pulse sterilization component (2), the pulse sterilization component (2) 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 move so as to extend or retract into the air outlet duct, and the pulse ultraviolet light module (21) can emit pulse light waves to the indoor environment and / or the evaporator (1).

2. The air conditioner indoor unit according to claim 1, characterized in that: 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 duct and meshed with the telescopic rod (231); the first motor (233) is drivingly connected to the transmission module (232); a mounting frame (234) is provided at the end of the telescopic rod (231) for assembling the pulsed ultraviolet light module (21).

3. The air conditioner indoor unit according to claim 2, characterized in that: The mounting frame (234) comprises a connecting plate (2341), and a first cantilever (2342) and a second cantilever (2343) are respectively arranged at two ends of the connecting plate (2341), and the first cantilever (2342) and the second cantilever (2343) are respectively rotatably connected to the pulsed ultraviolet light module (21).

4. The air conditioner indoor unit according to claim 3, characterized in that: A light-transmitting groove (2344) is provided on the connecting plate (2341), and the light-transmitting groove (2344) is located on a side of the bracket (213) away from the lamp holder (211).

5. The air conditioner indoor unit according to claim 1, characterized in that: The pulse sterilization component (2) further comprises a second driving device (24), wherein the second driving device (24) is located on the first driving device (23) and is used to drive the pulse ultraviolet light module (21) to rotate.

6. The air conditioner indoor unit according to claim 1, characterized in that: The pulse ultraviolet light module (21) comprises a detachably connected lamp holder (211) and a bracket (213), a germicidal lamp (214) being arranged between the lamp holder (211) and the bracket (213), the lamp holder (211) comprising a bottom plate (2111) and a surrounding plate (2112), the bottom plate (2111) being rotatably connected to the surrounding plate (2112); the pulse sterilization assembly (2) further comprises a second driving device (24), the second driving device (24) being arranged on the surrounding plate (2112) and being used for driving the bottom plate (2111) to rotate.

7. The air conditioner indoor unit according to claim 6, characterized in that: The second driving device (24) is installed on the enclosure (2112), and comprises a second motor (241), a transmission member (243), and a first gear (244). The enclosure (2112) is provided with a sliding groove (242), and the transmission member (243) slides into the sliding groove (242). The two sides of the transmission member (243) are respectively meshed and connected with the second motor (241) and the first gear (244), and the first gear (244) drives the bottom plate (2111) to rotate through a belt (246).

8. The air conditioner indoor unit according to any one of claims 1 to 7, characterized in that: The pulsed ultraviolet light module (21) comprises a lamp holder (211), a sealing plug (212), a bracket (213), and a germicidal lamp (214); the bracket (213) is arranged on the lamp holder (211) at a side close to the evaporator (1); the germicidal lamp (214) is arranged between the lamp holder (211) and the bracket (213); and the sealing plugs (212) are arranged at both ends of the germicidal lamp (214).

9. The air conditioner indoor unit according to claim 8, characterized in that: The lamp holder (211) comprises a bottom plate (2111), a surrounding plate (2112) is arranged on the peripheral side of the bottom plate (2111), the surrounding plate (2112) is provided with a first clamping groove (2114), the bracket (213) is provided with a first clamping buckle (2133) at a position corresponding to the first clamping groove (2114), and the first clamping buckle (2133) can be limitedly assembled into the first clamping groove (2114).

10. The air conditioner indoor unit according to claim 8, characterized in that: The bracket (213) is recessed inwardly on a side away from the lamp holder (211) to form a mounting cavity (2131) for accommodating the germicidal lamp (214); a third notch (2132) is provided on a side of the bracket (213) away from the lamp holder (211); the third notch (2132) is in communication with the mounting cavity (2131).

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