An air conditioner indoor unit

Abstract

The application provides an air conditioner indoor unit, which comprises an air inlet, a fan, an evaporator and a whole machine electric control box, air sucked from the air inlet is blown out after heat exchange through the evaporator under the drive of the fan, the whole machine electric control box is located at one side of the evaporator in the length direction, a pulse sterilization assembly is arranged in the air conditioner indoor unit, the pulse sterilization assembly comprises a pulse ultraviolet light module and a pulse electric control module; the pulse ultraviolet light module comprises a pulse sterilization lamp, the pulse sterilization lamp is located at the side of the evaporator away from the fan, pulse light emitted by the pulse sterilization lamp irradiates at least the evaporator, the pulse ultraviolet light module is installed on the evaporator or the distance between the pulse ultraviolet light module and the evaporator is less than 8 mm. The air conditioner indoor unit can fully utilize the internal structure of the air conditioner, the evaporator and the air duct in the air conditioner can be completely sterilized without large structural adjustment on the inside of the air conditioner, and the structure is compact and convenient for production and processing.

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 the development of the times, air conditioners have become an indispensable household appliance in daily life. During use, outside air can carry bacteria into the air conditioner, and condensation can occur inside due to temperature differences. Sometimes, the various components are in a humid environment, which can easily breed bacteria. These bacteria can spread with the air conditioner's airflow and may affect people's health. Therefore, air conditioners with sterilization functions have emerged.

[0003] Mature sterilization technologies used in air conditioners, such as UVC ultraviolet sterilization, require a long sterilization time. Plastic parts exposed to UVC ultraviolet light for extended periods are prone to aging. Furthermore, UVC ultraviolet leakage can harm the human body and may also produce ozone and other defects.

[0004] A novel sterilization technology, pulsed sterilization, is currently available. It releases energy in the form of full-spectrum white light within an extremely short time through the self-ionization of inert gas and avalanche discharge. The instantaneous photoelectric power can reach 10 million times that of ordinary sunlight, instantly killing various microorganisms without causing significant temperature changes to the object being sterilized. While it has already been applied in water disinfection, food hygiene processing, and medical care, its miniaturization has not yet been widely adopted in the air conditioning industry.

[0005] Pulse sterilization typically uses xenon lamps, which, combined with the installation structure, make it heavier than traditional UVC modules. Therefore, its installation location must have sufficient load-bearing capacity. Furthermore, xenon lamps offer higher brightness, and since air conditioner casings are usually made of plastic, which allows some light transmission, the xenon lamp's light transmission must also be considered. Additionally, pulse sterilization requires a high-voltage pulsed current supply, necessitating a large capacitor for the electrical module. Therefore, the installation location of the electrical module must also consider load-bearing capacity, space constraints, and wiring. Moreover, the installation space for indoor air conditioner units, especially wall-mounted units, is often limited. The optimal location for installing the pulse sterilization module must minimize the increase in overall unit size, save costs, and facilitate assembly. All of these factors must be considered.

[0006] In view of this, the present invention is hereby proposed. Summary of the Invention

[0007] The problem solved by this invention is that the existing sterilization air conditioner has an unreasonable structure, which leads to complicated assembly and poor overall performance.

[0008] To address the aforementioned problems, this invention provides an indoor air conditioning unit, comprising an air inlet, a fan, an evaporator, and a complete unit electrical control box. Air drawn in from the air inlet is blown out after heat exchange in the evaporator under the drive of the fan. The complete unit electrical control box is located on one side of the evaporator along its length. A pulse sterilization component is installed inside the indoor air conditioning unit. The pulse sterilization component includes a pulse ultraviolet light module and a pulse electrical control module. The pulse ultraviolet light module includes a pulse sterilization lamp, which is located on the side of the evaporator away from the fan. The pulse light emitted by the pulse sterilization lamp illuminates at least the evaporator. The pulse ultraviolet light module is mounted on the evaporator or at a distance of less than 8 mm from the evaporator.

[0009] If the installation connection has a large contact area and is secure, the pulsed ultraviolet light module will be more compact with the evaporator, occupying less space in the indoor unit. It will disinfect at least the evaporator surface and also irradiate the air duct, sterilizing it. If the module is installed on the evaporator bracket and suspended in front of the evaporator, or installed on the panel so that it is positioned in front of the evaporator when the panel is closed, the coverage area of ​​the pulsed ultraviolet light can be increased by placing the module directly opposite the evaporator, thus enhancing the sterilization effect. Furthermore, when the sterilization function is not in use, it minimizes the impact on the evaporator's air exchange rate, improving the indoor unit's efficiency and user comfort. This setup also makes full use of the air conditioner's internal structure, resulting in a compact design with minimal modifications to the existing structure, making it easy to implement.

[0010] Preferably, the pulsed ultraviolet light module and the pulsed electronic control module are electrically connected, and the pulsed ultraviolet light module and the pulsed electronic control module are respectively electrically connected to the whole machine electronic control box. The pulsed electronic control module is located between the whole machine electronic control box and the air inlet, and the pulsed electronic control module is detachably connected to the upper part of the whole machine electronic control box.

[0011] This arrangement allows the pulse sterilization component to be placed close to the main unit's electrical control box, facilitating wiring and eliminating the need for adapter structures; it requires minimal modification to the existing air conditioner structure, making implementation easy; the pulse electrical control module is located on the side of the main unit's electrical control box closest to the air inlet, i.e., on the top side of the air conditioner, and is not affected by condensate produced by the evaporator, ensuring safe and reliable operation.

[0012] Preferably, the pulse germicidal lamp is provided with sealing plugs at both ends, and the pulse ultraviolet light module further includes a lamp holder and a bracket. The pulse germicidal lamp is disposed between the lamp holder and the bracket, and the lamp holder and the bracket are detachably connected.

[0013] This design positions the bracket on the side of the lamp holder closer to the evaporator. The assembly of the lamp holder with the evaporator further limits the bracket's position, ensuring that the pulse germicidal lamp will not loosen or be damaged. At the same time, the pulse germicidal lamp can emit light from the bottom of the bracket into the evaporator for sterilization. It has a large radiation range, good sterilization effect, and is not affected by condensate produced by the evaporator, making it safe and reliable in operation.

[0014] Preferably, one end of the lamp holder is provided with a first fixing part for screwing and fixing to one end of the evaporator, and the other end of the lamp holder is provided with a second fixing part for snapping and fixing to the evaporator. This arrangement can balance the tightness and convenience of assembly, and has a simple structure and is easy to operate.

[0015] Preferably, the second fixing part includes a first claw and a second claw arranged adjacent to each other. The first claw and the second claw extend towards the evaporator and together form a first limiting part for engaging with the evaporator. This arrangement can cooperate with the first fixing part to limit the pulsed ultraviolet light module in both the horizontal and vertical directions, ensuring stable and reliable assembly.

[0016] Preferably, the bracket has an inwardly recessed groove on the side near the lamp holder to accommodate the pulse germicidal lamp; a first notch is provided on the side of the bracket away from the lamp holder, the first notch communicating with the groove, the length of the first notch being L1, and the length of the bracket being L2, where 0.6*L2 < L1 < 0.9*L2. This arrangement ensures that the lamp holder does not obstruct the light generated by the pulse germicidal lamp, resulting in good sterilization effect and convenient heat dissipation.

[0017] Preferably, the pulse control module includes a detachably connected second housing and a second cover, with a first housing and a first cover disposed between the second housing and the second cover. The first housing is partially embedded in the second housing, and the first housing and the first cover are detachably connected. This arrangement, by mounting the pulse control module above the indoor unit of the air conditioner, avoids condensation affecting its operational safety; simultaneously, the double-layered housing and cover provide explosion-proof and waterproof effects.

[0018] Preferably, a baffle rib is provided on the side of the first box body near the first box lid, and a snap-fit ​​groove is provided on the periphery of the baffle rib for detachable connection with the first box lid; the first box body and the second box body are assembled by snap-fit ​​or screw connection. This configuration allows for pre-assembly with the first box lid through the baffle rib, and the snap-fit ​​groove / buckle achieves snap-fit ​​fixation between the two, resulting in high assembly efficiency and good waterproof effect.

[0019] Preferably, a first protrusion is provided on the periphery of the first box body, and a first slot is provided on the second box body at a corresponding position to the first protrusion, with the first protrusion being fitted into the first slot for limiting assembly. This arrangement allows for rapid assembly of the first and second box bodies, has a simple structure, and is easy to manufacture.

[0020] Preferably, a tab is provided at the bottom of the first box body, a second notch is provided at the corresponding position of the second box body, and a slot is provided at the corresponding position of the overall electrical control box, allowing the tab to be fitted into the slot. This arrangement achieves the fixation of one end of the first box body to the overall electrical control box through the tab, while simultaneously limiting the position of the second box body, resulting in a simple structure and high assembly efficiency.

[0021] Preferably, the insert is located on the side of the first housing closer to the second housing. This arrangement allows the insert to be positioned as close as possible to the overall electrical control box, effectively preventing it from wobbling back and forth, providing excellent positioning for the second housing, and further improving assembly tightness and reliability.

[0022] Preferably, the second housing has a first connecting plate on the side away from the second notch, and a second connecting plate is provided on the second housing cover at a position corresponding to the first connecting plate. One side of the first connecting plate is fitted to the second connecting plate. A fixing post is provided on the overall electrical control box at a position corresponding to the second connecting plate. The first connecting plate, the second connecting plate, and the fixing post are fixed by screws. This arrangement allows for the simultaneous fixing and assembly of the second housing and the second housing cover with a single screw, while also providing a limiting effect on the first housing and the second housing cover, resulting in good assembly stability.

[0023] Compared with the prior art, the air conditioner indoor unit of the present invention has the following beneficial effects: 1) The pulse sterilization component can sterilize the evaporator and air duct inside the air conditioner, minimizing the impact on the normal airflow inside the air conditioner, with low energy consumption and good sterilization effect, improving user comfort; 2) The pulse sterilization component is located close to the whole unit's electrical control box, which facilitates wiring and eliminates the need for a transfer structure; it effectively avoids the evaporator generating condensate that could affect the operational safety of the pulse sterilization component; 3) It makes full use of the internal structure of the air conditioner, requiring minimal modification to the existing air conditioner structure, and is easy to manufacture and process. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0025] Figure 2 This is an exploded schematic diagram of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0026] Figure 3 This is a top view of the internal structure of the air conditioner indoor unit according to an embodiment of the present invention;

[0027] Figure 4 This is a schematic diagram of the overall electrical control box described in an embodiment of the present invention;

[0028] Figure 5 This is a longitudinal cross-sectional view of the indoor unit of the air conditioner according to an embodiment of the present invention;

[0029] Figure 6 This is an exploded view of the pulsed ultraviolet light module described in an embodiment of the present invention;

[0030] Figure 7 This is a bottom view of the lamp holder described in an embodiment of the present invention;

[0031] Figure 8 This is a left view of the lamp holder described in an embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the structure of the bracket described in an embodiment of the present invention;

[0033] Figure 10 This is a schematic diagram of the pulse electronic control module described in an embodiment of the present invention.

[0034] Figure 11 This is a schematic diagram of the structure of the first box body in an embodiment of the present invention;

[0035] Figure 12 This is a schematic diagram of the structure of the second box body according to an embodiment of the present invention;

[0036] Figure 13 This is a schematic diagram of the structure of the second box cover in an embodiment of the present invention.

[0037] Explanation of reference numerals in the attached figures:

[0038] 1-Evaporator; 2-Pulse sterilization component; 21-Pulse ultraviolet light module; 211-Lamp holder; 2111-First fixing part; 2112-Second fixing part; 21121-First claw; 21122-Second claw; 21123-Third claw; 21124-Fourth claw; 2113-First sidewall; 2114-Second sidewall; 212-Sealing plug; 213-Bracket; 2131-Limiting groove; 2132-First notch; 2133-Snap; 214-Pulse sterilization lamp; 22-Pulse electronic control module; 221-First housing; 22 11-Insert plate; 2212-First protrusion; 2213-Baffle; 2214-Snap-fit ​​groove; 2215-Wire hole; 222-First cover; 223-Second box body; 2231-Second notch; 2232-Second protrusion; 2233-First slot; 2234-First connecting plate; 224-Second cover; 2241-Second slot; 2242-Second connecting plate; 3-Complete electrical control box; 31-Fixing post; 32-Slot; 4-Right end cover; 5-Left end cover; 6-Panel; 7-Air guide assembly; 8-Base; 9-Middle frame; 10-Wall mounting plate. Detailed Implementation

[0039] 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, unless otherwise specified, the technical features of the various embodiments of the present invention can be combined with each other.

[0040] 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.

[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "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 limitations such as up, down, left, and right in this invention refer to the description made when facing the front panel of the air conditioner after normal installation. For a wall-mounted indoor unit, this refers to the orientation perceived by a person facing the wall after the air conditioner is installed on it.

[0042] Air conditioners regulate indoor temperature by exchanging heat with the air to provide a comfortable environment. Cleaning them when clogged effectively removes bacteria and other microorganisms. However, in summer cooling mode, the indoor evaporator produces condensate, providing favorable conditions for the growth of bacteria and other microorganisms. A large amount of these remaining bacteria and microorganisms can cause discomfort and even "air conditioning sickness." Therefore, air conditioners with sterilization functions have emerged, but their current complex and unreasonable structure leads to poor overall performance. Therefore, the applicant proposes the following technical solution:

[0043] like Figure 1-5 As shown, an indoor air conditioning unit includes an air inlet, a fan, an evaporator 1, and a complete unit electrical control box 3. Air drawn in from the air inlet is blown out after heat exchange in the evaporator 1 under the drive of the fan. The complete unit electrical control box 3 is located on one side of the evaporator 1 along its length. A pulse sterilization component 2 is installed inside the indoor air conditioning unit. The pulse sterilization component 2 includes a pulse ultraviolet light module 21 and a pulse electrical control module 22. The pulse ultraviolet light module 21 includes a pulse sterilization lamp 214. The pulse sterilization lamp 214 is located on the side of the evaporator 1 away from the fan. The pulse light emitted by the pulse sterilization lamp 214 illuminates at least the evaporator 1. The pulse ultraviolet light module 21 is installed on the evaporator 1 or at a distance of less than 8 mm from the evaporator 1.

[0044] When the pulsed ultraviolet (UV) module 21 is installed on the evaporator 1, the contact area at the installation joint is large, ensuring a secure installation. The installation is also more compact, minimizing the space occupied by the UV module 21 within the evaporator 1. It disinfects at least the surface of the evaporator 1 and also irradiates the air duct, sterilizing it. If installed on the evaporator bracket and suspended at the front end of the evaporator 1, or installed on the panel 6 so that it is positioned at the front end of the evaporator 1 when the panel 6 is closed, the UV module 21, by being directly opposite the evaporator 1, increases the coverage area of ​​the UV light, enhancing its sterilization effect. Furthermore, when the sterilization function is not in use, it minimizes the impact on the air exchange rate of the evaporator 1, improving the indoor unit's efficiency and user comfort. This design also fully utilizes the internal structure of the air conditioner, resulting in a compact structure with minimal modifications to the existing air conditioning structure, making implementation easy.

[0045] The pulse control module 22 is located on the side of the main control box 3 near the air inlet (not shown in the figure), i.e., on the upper side of the air conditioner. It is not affected by the condensate produced by the evaporator 1, ensuring safe and reliable operation. This arrangement allows the pulse ultraviolet light module 21 and the pulse control module 22 to be placed close to the main control box 3, facilitating wiring and eliminating the need for adapter structures. The main control box 3 is located at the right end of the evaporator 1 and is mainly used to house and protect important components such as circuit boards. It connects with various electrical components to control the indoor unit of the air conditioner.

[0046] The air conditioner also includes a right end cover 4, a left end cover 5, a panel 6, an air guide assembly 7, a base 8, a middle frame 9, and a wall-mounted panel 10. The wall-mounted panel 10 and the middle frame 9 are respectively installed on both sides of the base 8. The evaporator 1 is installed inside the middle frame 9. The left end cover 5 and the whole unit electrical control box 3 are respectively installed on both sides of the middle frame 9. The right end cover 4 is installed around the whole unit electrical control box 3. The panel 6 is installed on the front side of the middle frame 9. The air guide assembly 7 is installed on the lower side of the panel 6. The above structure and assembly relationship are all existing technologies and will not be described in detail here.

[0047] As an example of the present invention, the pulsed ultraviolet light module 21 and the pulsed electronic control module 22 are electrically connected, and the pulsed ultraviolet light module 21 and the pulsed electronic control module 22 are respectively electrically connected to the whole machine electronic control box 3. The pulsed electronic control module 22 is located between the whole machine electronic control box 3 and the air inlet, and the pulsed electronic control module 22 is detachably connected to the upper part of the whole machine electronic control box 3.

[0048] Preferably, the pulsed ultraviolet light module 21 is fixed to the evaporator 1 by snap-fit ​​and / or screw-fit. As an example of the present invention, an evaporator bracket is provided at the end of the evaporator 1, one end of the pulsed ultraviolet light module 21 is fixed to the evaporator bracket by screw-fit, and the other end of the pulsed ultraviolet light module 21 is fixed to the evaporator 1 by snap-fit. This arrangement can make full use of the existing structure of the air conditioner, taking into account both the tightness and convenience of assembly.

[0049] like Figure 6-9 As shown, the pulsed ultraviolet light module 21 includes a lamp holder 211 detachably connected to the evaporator 1. A bracket 213 is provided on the side of the lamp holder 211 near the evaporator 1. A pulsed germicidal lamp 214 is provided between the lamp holder 211 and the bracket 213. Sealing plugs 212 are provided at both ends of the pulsed germicidal lamp 214. The pulsed germicidal lamp 214 is electrically connected to the pulsed electronic control module 22. This configuration is simple in structure and easy to assemble and disassemble.

[0050] The lamp holder 211 has a first fixing part 2111 and a second fixing part 2112 at its two ends, respectively. A first sidewall 2113 and a second sidewall 2114 are provided between the first fixing part 2111 and the second fixing part 2112. The first sidewall 2113 and the second sidewall 2114 extend along the length of the lamp holder 211 and there is a gap between them, which is used to limit the assembly bracket 213. This arrangement limits the pulse germicidal lamp 214 through the cooperation of the lamp holder 211 and the bracket 213. The structure is simple and the assembly efficiency is high.

[0051] Preferably, evaporator supports are provided at both ends of the evaporator 1 along its length. One end of the lamp holder 211 is provided with a first fixing part 2111 for screwing and fixing to the evaporator support, and the other end of the lamp holder 211 is provided with a second fixing part 2112 for snapping and fixing to the evaporator 1. As an example of the present invention, the first fixing part 2111 is a horizontally arranged connecting plate with assembly holes for screwing and fixing to the evaporator support; the second fixing part 2112 includes a first claw 21121 and a second claw 21122 arranged adjacently and extending to one side of the evaporator 1. The first claw 21121 and the second claw 21122 cooperate to form a first limiting part for snapping and assembling with the evaporation tube of the evaporator 1.

[0052] Preferably, the first claw 21121 has a recessed portion near the second claw 21122 to form a first limiting groove, which is semi-circular; the second claw 21122 has a recessed portion near the first claw 21121 to form a second limiting groove, which is also semi-circular and is positioned opposite to the first limiting groove. This arrangement ensures that the evaporator tube is properly fitted into the first and second limiting grooves, preventing it from coming out.

[0053] Preferably, the second fixing part 2112 further includes a third claw 21123 and a fourth claw 21124. The third claw 21123 is located on the side of the first claw 21121 away from the second claw 21122, and the fourth claw 21124 is located on the side of the second claw 21122 away from the first claw 21121. A second limiting part is formed between the first claw 21121 and the third claw 21123, and a third limiting part is formed between the second claw 21122 and the fourth claw 21124, for engaging with the evaporator 1. This arrangement allows the second fixing part 2112 to make line contact with the evaporator 1, limiting it in the vertical plane to prevent rotation relative to the evaporator 1, while the first fixing part 2111 can limit the lamp holder 211 in the horizontal plane to prevent it from sliding.

[0054] The bracket 213 is recessed inward on the side near the lamp holder 211 to form a limiting groove 2131 for accommodating the pulse germicidal lamp 214. A first notch 2132 is provided on the side of the bracket 213 away from the lamp holder 211, and the first notch 2132 is connected to the limiting groove 2131.

[0055] Preferably, the longitudinal height of the first notch 2132 is H1, the height of the bracket 213 is H2, and the height of the first sidewall 2113 is H3, where H2-H1=H3. This arrangement ensures that the lamp holder 211 does not obstruct the light generated by the pulse germicidal lamp 214, resulting in good sterilization effect and convenient heat dissipation. As an example of the present invention, the length of the first notch 2132 is L1, and the length of the bracket 213 is L2, where 0.6*L2<L1<0.9*L2. This arrangement can balance the sterilization performance and heat dissipation performance of the pulse ultraviolet light module 21, while also giving it good mechanical strength and a long service life.

[0056] As an example of the present invention, a buckle 2133 is provided on the outer side of the bracket 213, and a mating groove is provided on the lamp holder 211 at a corresponding position to the buckle 2133, allowing the buckle 2133 to be fitted into the mating groove. This design allows force to be applied to the buckle 2133 from the outside of the lamp holder 211, facilitating quick assembly and disassembly of the bracket 213 and the lamp holder 211; simultaneously, the buckle 2133 fills the mating groove, making the side wall of the lamp holder 211 flat and improving the overall aesthetics. Preferably, buckles 2133 are provided on both sides of the bracket 213, and mating grooves are provided on the first side wall 2113 and the second side wall 2114 relative to the buckle 2133. The design is simple and aesthetically pleasing.

[0057] The pulse germicidal lamp 214 can be a xenon lamp or an ultraviolet lamp; preferably, the pulse 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 of the pulse germicidal lamp 214 can be adjusted according to the number of bacteria, for example, by first being fast and then slowing down within each sterilization cycle.

[0058] During assembly, firstly, seal plugs 212 are installed at both ends of the pulse germicidal lamp 214. Then, the pulse germicidal lamp 214 is assembled into the limiting groove 2131 of the bracket 213. After that, the bracket 213 is snapped into the space between the first side wall 2113 and the second side wall 2114 of the lamp holder 211 to form the pulse ultraviolet light module 21. Press the lamp holder 211 down to embed the evaporation tube of the evaporator 1 into the second fixing part 2112. Then, the first fixing part 2111 of the lamp holder 211 is screwed into the evaporator bracket of the evaporator 1.

[0059] like Figure 10-13As shown, the pulse control module 22 is L-shaped and has a recessed area to avoid obstructing the evaporator connecting pipe. As an example of the invention, the pulse control module 22 includes a detachably connected second housing 223 and a second cover 224. A first housing 221 and a first cover 222 are disposed between the second housing 223 and the second cover 224. The first housing 221 is partially embedded within the second housing 223, and the first housing 221 and the first cover 222 are detachably connected. This configuration improves the explosion-proof and waterproof performance of the pulse control module 22, making its operation safer and more stable. Preferably, the second housing 223 and the second cover 224 are made of explosion-proof material.

[0060] As an example of the present invention, a baffle 2213 is provided on the side of the first box body 221 near the first box cover 222, and a snap-fit ​​groove 2214 is provided on the periphery of the baffle 2213 for detachable connection with the first box cover 222; a first protrusion 2212 is provided on the periphery of the first box body 221, and a first slot 2233 is provided at the corresponding position of the second box body 223, and the first protrusion 2212 is limited and assembled into the first slot 2233.

[0061] A insert 2211 is provided at the bottom of the first housing 221, and a second notch 2231 is provided at the corresponding position of the insert 2211 in the second housing 223. The whole machine electrical control box 3 is provided with a slot 32, and the insert 2211 can be positioned and fitted into the slot 32. A cable passage hole 2215 is provided at the top of the first housing 221 for supporting cables. This arrangement can fix one end of the first housing 221 to the whole machine electrical control box 3 through the insert 2211, while also limiting the second housing 223. The structure is simple and the assembly efficiency is high. Preferably, the cable passage hole 2215 extends a certain distance outward from the first housing 221. This arrangement can provide strong support for the cable at the connection point and avoid bending or even poor contact.

[0062] Preferably, the insert 2211 is located on the side of the first housing 221 closer to the second housing 223. This arrangement allows the insert 2211 to be positioned as close as possible to the main electrical control box 3, effectively preventing it from wobbling back and forth and improving assembly tightness and reliability.

[0063] The second housing 223 has a first connecting plate 2234 on the side away from the second notch 2231. A second connecting plate 2242 is positioned on the second housing 224 corresponding to the first connecting plate 2234, with one side of the second connecting plate 2242 fitting snugly against the first connecting plate 2234. Both the first connecting plate 2234 and the second connecting plate 2242 have mounting holes. A fixing post 31 is positioned on the main electrical control box 3 corresponding to the second connecting plate 2242. The first connecting plate 2234, the second connecting plate 2242, and the fixing post 31 are connected by screws. This arrangement is simple in structure, allowing for simultaneous fixing of the second housing 223, the second housing 224, and the main electrical control box 3 with a single screw, resulting in high assembly efficiency.

[0064] A second protrusion 2232 is provided on the outer wall of the second housing 223, and a second slot 2241 is provided at the corresponding position of the second cover 224. The second protrusion 2232 can be limited and assembled into the second slot 2241. This structure is simple and achieves a fixed assembly of the second housing 223 and the second cover 224 through cooperation with the first connecting plate 2234 and the second connecting plate 2242, ensuring a stable and reliable connection. Furthermore, the second protrusion 2232 is located on the outer surface of the pulse control module 22, allowing for quick disassembly by pressing the second protrusion 2232 for easy maintenance. It is understood that the positions of the second slot 2241 and the second protrusion 2232 can be interchanged.

[0065] In other words: after assembling the circuit board of the pulse control module 22 into the first box 221, the first box 221 is partially embedded into the second box 223. The two are detachably connected by the first protrusion 2212 and the first slot 2233. Then, the first box cover 222 is placed on the first box 221. The two are assembled by the engagement of the slot 2214 and the protrusion. Then, the second box cover 224 is placed on the first box cover 222. The second box cover 224 and the second box 223 are assembled by the second protrusion 2232 being embedded in the second slot 2241. Then, the insert 2211 at the bottom of the first box 221 is inserted into the slot 32. The first connecting plate 2234 of the second box 223 and the second connecting plate 2242 of the second box cover 224 are aligned with the fixing post 31 of the whole machine control box 3 and fixed by screws.

[0066] 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 indoor unit of an air conditioner, comprising an air inlet, a fan, an evaporator (1), and a complete unit electrical control box (3), wherein air drawn in from the air inlet is blown out after heat exchange through the evaporator (1) driven by the fan, and the complete unit electrical control box (3) is located on one side of the evaporator (1) along its length, characterized in that: The indoor unit of the air conditioner is equipped with a pulse sterilization component (2), which includes a pulse ultraviolet light module (21) and a pulse electronic control module (22). The pulsed ultraviolet light module (21) includes a pulsed germicidal lamp (214), which is located on the side of the evaporator (1) away from the fan. The pulsed light emitted by the pulsed germicidal lamp (214) illuminates at least the evaporator (1). The pulsed ultraviolet light module (21) is installed on the evaporator (1) or at a distance of less than 8 mm from the evaporator (1). The pulse germicidal lamp (214) is provided with sealing plugs (212) at both ends. The pulse ultraviolet light module (21) also includes a lamp holder (211) and a bracket (213). The pulse germicidal lamp (214) is disposed between the lamp holder (211) and the bracket (213). The lamp holder (211) and the bracket (213) are detachably connected. The pulse control module (22) includes a second housing (223) and a second housing cover (224) that are detachably connected. A first housing (221) and a first housing cover (222) are disposed between the second housing (223) and the second housing cover (224). The first housing (221) is partially embedded in the second housing (223). The first housing (221) and the first housing cover (222) are detachably connected. The first box body (221) is provided with a baffle (2213) on the side near the first box cover (222), and the baffle (2213) is provided with a snap-fit ​​groove (2214) on its periphery for detachable connection with the first box cover (222); the first box body (221) and the second box body (223) are assembled by snap-fit ​​or screw connection.

2. The indoor unit of the air conditioner according to claim 1, characterized in that, The pulsed ultraviolet light module (21) and the pulsed electronic control module (22) are electrically connected. The pulsed ultraviolet light module (21) and the pulsed electronic control module (22) are respectively electrically connected to the whole machine electronic control box (3). The pulsed electronic control module (22) is located between the whole machine electronic control box (3) and the air inlet. The pulsed electronic control module (22) is detachably connected to the upper part of the whole machine electronic control box (3).

3. The indoor unit of the air conditioner according to claim 1, characterized in that, The evaporator (1) has evaporator brackets at both ends in the length direction. One end of the lamp holder (211) is provided with a first fixing part (2111) for screwing and fixing to the evaporator bracket at one end. The other end of the lamp holder (211) is provided with a second fixing part (2112) for snapping and fixing to the evaporator (1).

4. The indoor unit of the air conditioner according to claim 3, characterized in that, The second fixing part (2112) includes a first claw (21121) and a second claw (21122) arranged adjacent to each other. The first claw (21121) and the second claw (21122) extend toward the evaporator (1) and together form a first limiting part for engaging with the evaporator (1).

5. The indoor unit of the air conditioner according to claim 1, characterized in that, The bracket (213) is recessed inward on the side near the lamp holder (211) to form a limiting groove (2131) for accommodating the pulse germicidal lamp (214); the bracket (213) is provided with a first notch (2132) on the side away from the lamp holder (211), the first notch (2132) is connected to the limiting groove (2131), the length of the first notch (2132) is L1, and the length of the bracket (213) is L2, where 0.6*L2<L1<0.9*L2.

6. The indoor unit of the air conditioner according to claim 1, characterized in that, The first box body (221) is provided with a first protrusion (2212) on its periphery, and the second box body (223) is provided with a first slot (2233) at a position corresponding to the first protrusion (2212). The first protrusion (2212) is limited and assembled into the first slot (2233).

7. The indoor unit of the air conditioner according to claim 6, characterized in that, A insert (2211) is provided below the first box (221), and a second notch (2231) is provided at the position corresponding to the insert (2211) of the second box (223). A slot (32) is provided at the position corresponding to the insert (2211) of the whole machine electrical control box (3), and the insert (2211) can be limited and assembled into the slot (32).

8. The indoor unit of the air conditioner according to claim 7, characterized in that, The second box body (223) has a first connecting plate (2234) on the side away from the second notch (2231). The second box cover (224) has a second connecting plate (2242) at a position corresponding to the first connecting plate (2234). One side of the first connecting plate (2234) is fitted to the second connecting plate (2242). The whole machine electrical control box (3) has a fixing post (31) at a position corresponding to the second connecting plate (2242). The first connecting plate (2234), the second connecting plate (2242), and the fixing post (31) are fixed by screws.

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