Indoor unit of air conditioner

Abstract

The invention provides an air conditioner indoor unit which comprises an air inlet, a fan, an evaporator and a complete machine electric control box, air sucked in from the air inlet is blown out after being subjected to heat exchange through the evaporator under driving of the fan, the complete machine electric control box is located on one side of the evaporator in the length direction, a pulse sterilization assembly is arranged in the air conditioner indoor unit, and the pulse sterilization assembly is connected with the complete machine electric control box. 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 on the side, away from the draught fan, of the evaporator, pulse light emitted by the pulse sterilization lamp at least irradiates 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 smaller than 8 mm. According to the indoor unit of the air conditioner, the internal structure of the air conditioner can be fully utilized, the evaporator and the air duct in the air conditioner can be thoroughly sterilized without large structural adjustment on the interior of the air conditioner, the structure is compact, and production and processing are convenient.

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] With the development of the times, air conditioners have become one of the indispensable household appliances in daily life. During use, the outside air will carry bacteria into the air conditioner, and condensation will occur inside the air conditioner due to the temperature difference between hot and cold. Sometimes, the components are in a humid environment, which is easy to breed bacteria. The bacteria spread with the air blowing from the air conditioner may affect people's health. Therefore, air conditioners with sterilization function came into being.

[0003] Mature sterilization technologies used in air conditioners, such as UVC ultraviolet sterilization, take a long time to sterilize. Plastic parts are prone to aging when exposed to UVC ultraviolet conditions for a long time. UVC ultraviolet leakage can easily cause harm to the human body and may also produce defects such as ozone.

[0004] At present, there is a new type of sterilization technology, pulse sterilization technology, which releases energy in the form of full-spectrum white light through the self-ionization and avalanche discharge of inert gas in a very short time. The instantaneous light power can reach 10 million times the power of ordinary sunlight, which can instantly kill all kinds of microorganisms without causing obvious temperature changes to the sterilized objects. It has been applied in water disinfection, food sanitation and medical hygiene, but it has not been promoted in the field of air conditioning until it is miniaturized.

[0005] Pulse sterilization usually uses xenon lamp tubes, and the installation structure is heavier than traditional UVC modules, so the installation location must have a certain load-bearing capacity; and xenon lamp tubes are brighter when working. Since the air conditioner shell is usually made of plastic and has a certain degree of light transmittance, the xenon lamp tubes also need to consider the light transmittance problem; in addition, pulse sterilization requires the supply of high-voltage pulse electricity, and the electric module requires a larger capacitor, so the installation location of the electric module also needs to consider the comprehensive load-bearing, space, and wiring; in addition, the installation space of the air conditioner indoor unit, especially the hanging indoor unit, is compact. Where to install the pulse sterilization module to minimize the increase in the size of the whole machine, save costs, and facilitate assembly, the above are all issues that need to be considered.

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

[0007] The problem solved by the present invention is that the existing sterilizing air conditioner has an unreasonable structure, resulting in complicated assembly and poor overall performance.

[0008] To solve the above problems, the present invention provides an air-conditioning indoor unit, comprising an air inlet, a fan, an evaporator and an electrical control box for the whole machine. The air sucked in from the air inlet is driven by the fan and then blown out after heat exchange through the evaporator. The electrical control box for the whole machine is located on one side of the length direction of the evaporator. A pulse sterilization component is arranged in the air-conditioning indoor unit, and the pulse sterilization component comprises a pulse ultraviolet light module and a pulse electrical control module; the pulse ultraviolet light module comprises a pulse sterilization lamp, and the pulse sterilization lamp is located on a side of the evaporator away from the fan. The pulse light emitted by the pulse sterilization lamp at least irradiates the evaporator. The pulse ultraviolet light module is installed on the evaporator, or the distance from the evaporator is less than 8 mm.

[0009] If the contact area of ​​the installation connection is large and the installation is firm; the pulsed ultraviolet light module and the evaporator are more compact and occupy less space in the indoor unit; at least the surface of the evaporator can be disinfected and the air duct can be irradiated to sterilize the air duct; if it is installed on the evaporator bracket and suspended at the front end of the evaporator, or installed on the panel and located at the front end of the evaporator after the panel is closed, the pulsed ultraviolet light module can be placed opposite the evaporator to increase the coverage area of ​​the pulsed ultraviolet light, improve the sterilization effect of the pulsed ultraviolet light, and minimize the impact on the ventilation volume of the evaporator when the sterilization function is not used, improve the working efficiency of the indoor unit, and improve the user's comfort. At the same time, this setting can make full use of the internal structure of the air conditioner, with a compact structure and little change to the existing structure of the air conditioner, which is easy to implement.

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

[0011] This arrangement allows the pulse sterilization component to be arranged adjacent to the complete machine's electrical control box, which facilitates wiring and does not require a switching structure; it requires little change to the existing structure of the air conditioner, making it easy to implement; the pulse electrical control module is located on the side of the complete machine's electrical control box close to the air inlet, i.e., the upper side of the air conditioner, and will not be affected by condensed water produced by the evaporator, ensuring safe and reliable operation.

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

[0013] This setting positions the bracket on the side of the lamp holder close to the evaporator. The bracket can be further limited by assembling the lamp holder and the evaporator to ensure that the pulse germicidal lamp will not loosen or even be damaged. At the same time, the pulse germicidal lamp can emit light from the bottom of the bracket into the inside of the evaporator for sterilization. It has a large radiation range, good sterilization effect, and will not be affected by condensed water produced by the evaporator. It is safe and reliable in operation.

[0014] Preferably, a first fixing portion is provided at one end of the lamp holder for screwing and fixing with the evaporator at one end, and a second fixing portion is provided at the other end of the lamp holder for clamping and fixing with the evaporator. This arrangement can take into account both the tightness and convenience of assembly, has a simple structure, and is easy to operate.

[0015] Preferably, the second fixing portion includes a first claw and a second claw that are adjacently arranged, and the first claw and the second claw extend toward one side of the evaporator and together form a first limiting portion for clamping with the evaporator. This setting can cooperate with the first fixing portion to limit the pulsed ultraviolet light module in both the horizontal and vertical directions, and the assembly is stable and reliable.

[0016] Preferably, the side of the bracket close to the lamp holder is inwardly recessed to form a limiting groove for accommodating the pulse germicidal lamp; a first notch is provided on the side of the bracket away from the lamp holder, the first notch is connected to the limiting groove, the length of the first notch is L1, the length of the bracket is L2, wherein 0.6*L2<L1<0.9*L2. This arrangement prevents the lamp holder from blocking the light generated by the pulse germicidal lamp, has a good sterilization effect and is convenient for heat dissipation.

[0017] Preferably, the pulse electric control module includes a detachably connected second box body and a second box cover, a first box body and a first box cover are arranged between the second box body and the second box cover, the first box body is partially embedded in the second box body, and the first box body and the first box cover are detachably connected. This arrangement prevents condensed water from affecting its operating safety by assembling the pulse electric control module above the indoor unit of the air conditioner; at the same time, a double-layer box body and box cover are arranged to achieve explosion-proof and waterproof effects.

[0018] Preferably, a retaining rib is provided on one side of the first box body close to the first box cover, and a snap-fitting groove is provided on the circumferential side of the retaining rib for detachably connecting with the first box cover; the first box body and the second box body are assembled by snap-fitting or screw-fitting. This arrangement can realize pre-assembly with the first box cover through the retaining rib, and realize snap-fitting and fixing of the two through the snap-fitting groove / snap, which has high assembly efficiency and good waterproof effect.

[0019] Preferably, a first protrusion is disposed on the periphery of the first box body, a first slot is disposed on the second box body at a position corresponding to the first protrusion, and the first protrusion is limitedly assembled into the first slot. This arrangement can quickly realize the assembly of the first box body and the second box body, has a simple structure, and is easy to produce and process.

[0020] Preferably, an insert is provided below the first box body, a second notch is provided at a position of the second box body corresponding to the insert, a slot is provided at a position of the complete machine electric control box corresponding to the insert, and the insert can be limitedly assembled into the slot. This arrangement can achieve the fixation of one end of the first box body and the complete machine electric control box through the insert, and at the same time has a limiting effect on the second box body, with a simple structure and high assembly efficiency.

[0021] Preferably, the insert is located on the side of the first box body close to the second box body. This arrangement allows the insert to be arranged as close to the whole machine electric control box as possible, effectively preventing it from shaking back and forth, having a good limiting effect on the second box body, and further improving assembly tightness and reliability.

[0022] Preferably, the second box body is provided with a first connecting plate on a side away from the second notch, the second box cover is provided with a second connecting plate at a position corresponding to the first connecting plate, one side of the first connecting plate is provided in contact with the second connecting plate, and a fixing column is provided at a position corresponding to the second connecting plate on the whole machine electric control box, and the first connecting plate, the second connecting plate and the fixing column are fixed by screw connection. This arrangement can fix and assemble the second box body and the second box cover at the same time by one screw, and at the same time limit the first box body and the second box cover, and has good assembly stability.

[0023] Compared with the prior art, the air-conditioning indoor unit described in the present invention has the following beneficial effects: 1) The pulse sterilization component can be used to sterilize the evaporator and the air duct in the air-conditioning, minimizing the impact on the normal flow of air in the air-conditioning, with low energy consumption and good sterilization effect, thereby improving user comfort; 2) The pulse sterilization component is arranged near the electrical control box of the whole machine, which is convenient for wiring and does not require the setting of a switching structure; it can effectively prevent the evaporator from generating condensed water that affects the operational safety of the pulse sterilization component; 3) the internal structure of the air conditioner is fully utilized, with minimal changes to the existing structure of the air conditioner, making it easy to produce and process. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0027] Figure 4 This is a schematic diagram of the structure of the electric control box of the whole machine according to an embodiment of the present invention;

[0028] Figure 5 is a longitudinal cross-sectional schematic diagram of an air-conditioning indoor unit according to an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of an explosion of a pulsed ultraviolet light module according to an embodiment of the present invention;

[0030] Figure 7 A bottom view of the lamp holder according to an embodiment of the present invention;

[0031] Figure 8 It is a left side view of the lamp holder according to the embodiment of the present invention;

[0032] Fig. 9 is a schematic diagram of the structure of the bracket according to an embodiment of the present invention;

[0033] Fig.10 It is a schematic diagram of the explosion of the pulse electric control module according to the embodiment of the present invention;

[0034] Fig.11 This is a schematic diagram of the structure of the first box body according to an embodiment of the present invention;

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

[0036] Fig.13 It is a schematic diagram of the structure of the second box cover according to an embodiment of the present invention.

[0037] Description of reference numerals:

[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 side wall; 2114-second side wall; 212-sealing plug; 213-bracket; 2131-limiting groove; 2132-first notch; 2133-buckle; 214-pulse sterilization lamp; 22-pulse electric control module; 221-first box body; 22 11-insert; 2212-first protrusion; 2213-retaining rib; 2214-clip groove; 2215-wire hole; 222-first box cover; 223-second box body; 2231-second notch; 2232-second protrusion; 2233-first slot; 2234-first connecting plate; 224-second box cover; 2241-second slot; 2242-second connecting plate; 3-complete machine electrical control box; 31-fixing column; 32-slot; 4-right end cover; 5-left end cover; 6-panel; 7-air guide assembly; 8-base; 9-middle frame; 10-wall-mounted plate. DETAILED DESCRIPTION

[0039] 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 without conflict.

[0040] 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.

[0041] In the present invention, unless otherwise clearly specified 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. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely 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 obliquely 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 descriptions made facing the front panel of the air conditioner after the air conditioner is normally installed. For an indoor unit, it is the direction perceived by a person facing the wall after the air conditioner is installed on the wall.

[0042] The air conditioner adjusts the indoor temperature by exchanging heat with the air to provide a comfortable environment. When there is dirt or blockage, it is cleaned to effectively remove bacteria inside the air conditioner. However, in the summer cooling mode, the indoor evaporator will produce condensed water, which provides favorable conditions for the growth of bacteria and other microorganisms. A large number of bacteria and other microorganisms will cause human discomfort and even "air conditioning disease". For this reason, air conditioners with sterilization functions came into being, but their current structure is complex and unreasonable, resulting in poor overall performance of the air conditioner. To this end, the applicant proposes the following technical solution:

[0043] like Figure 1-5 As shown, an air-conditioning indoor unit includes an air inlet, a fan, an evaporator 1 and an electric control box 3 for the whole machine. The air sucked in from the air inlet is driven by the fan and blown out after heat exchange through the evaporator 1. The electric control box 3 for the whole machine is located on one side of the length direction of the evaporator 1. A pulse sterilization component 2 is arranged in the air-conditioning indoor unit. The pulse sterilization component 2 includes a pulse ultraviolet light module 21 and a pulse electric control module 22. The pulse ultraviolet light module 21 includes a pulse sterilization lamp 214. The pulse sterilization lamp 214 is located on a side of the evaporator 1 away from the fan. The pulse light emitted by the pulse sterilization lamp 214 at least irradiates the evaporator 1. The pulse ultraviolet light module 21 is installed on the evaporator 1, or the distance from the evaporator 1 is less than 8 mm.

[0044] When the pulsed ultraviolet light module 21 is installed on the evaporator 1, the contact area of ​​the installation connection is large and the installation is firm; the pulsed ultraviolet light module 21 and the evaporator 1 are more compact and occupy less space in the internal unit; at least the surface of the evaporator 1 can be disinfected, and the air duct can also be irradiated to sterilize the air duct; if it is installed on the evaporator bracket and suspended at the front end of the evaporator 1, or installed on the panel 6, and located at the front end of the evaporator 1 after the panel 6 is closed, the pulsed ultraviolet light module 21 and the evaporator 1 are arranged opposite to each other, so that the coverage area of ​​the pulsed ultraviolet light can be increased, the sterilization effect of the pulsed ultraviolet light can be improved, and when the sterilization function is not used, the impact on the ventilation volume of the evaporator 1 can be minimized, the working efficiency of the indoor unit can be improved, and the user's comfort can be improved. At the same time, this setting can make full use of the internal structure of the air conditioner, the structure is compact, and the existing structure of the air conditioner is changed little, which is easy to implement.

[0045] The pulse electric control module 22 is located on the side of the whole machine electric control box 3 close to the air inlet (not shown in the figure), that is, on the upper side of the air conditioner, and will not be affected by the condensed water produced by the evaporator 1, and the operation is safe and reliable. This arrangement allows the pulse ultraviolet light module 21 and the pulse electric control module 22 to be arranged close to the whole machine electric control box 3, which is convenient for wiring and does not require the setting of a switching structure; the whole machine electric control box 3 is set at the right end of the evaporator 1, mainly used to accommodate and protect important components such as circuit boards, and is connected to various electrical components to realize the control of the air conditioner indoor unit.

[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 plate 10. The wall-mounted plate 10 and the middle frame 9 are respectively arranged on both sides of the base 8. The evaporator 1 is arranged in the middle frame 9. The left end cover 5 and the whole machine electric control box 3 are respectively arranged on both sides of the middle frame 9. The right end cover 4 is arranged on the periphery of the whole machine electric control box 3. The panel 6 is arranged on the front side of the middle frame 9, and the air guide assembly 7 is arranged on the lower side of the panel 6. The above-mentioned structures and assembly relationships are all existing technologies and are not described in detail here.

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

[0048] Preferably, the pulsed ultraviolet light module 21 is fixed to the evaporator 1 by snap connection and / or screw connection. 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 connection, and the other end of the pulsed ultraviolet light module 21 is fixed to the evaporator 1 by snap connection. 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 pulse 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 close to the evaporator 1, a pulse germicidal lamp 214 is provided between the lamp holder 211 and the bracket 213, sealing plugs 212 are provided at both ends of the pulse germicidal lamp 214, and the pulse germicidal lamp 214 is electrically connected to the pulse electric control module 22. The structure of the arrangement is simple and easy to disassemble and assemble.

[0050] A first fixing portion 2111 and a second fixing portion 2112 are respectively disposed at both ends of the lamp holder 211, and a first side wall 2113 and a second side wall 2114 are disposed between the first fixing portion 2111 and the second fixing portion 2112. The first side wall 2113 and the second side wall 2114 extend along the length direction of the lamp holder 211 and there is a gap between the two for limiting the position of the assembly bracket 213. This arrangement limits the position of the pulse germicidal lamp 214 by the cooperation of the lamp holder 211 and the bracket 213, has a simple structure, and has high assembly efficiency.

[0051] Preferably, the two ends of the evaporator 1 in the length direction are respectively provided with evaporator brackets, a first fixing portion 2111 is provided at one end of the lamp holder 211 for screwing and fixing with the evaporator bracket, and a second fixing portion 2112 is provided at the other end of the lamp holder 211 for clamping and fixing with the evaporator 1. As an example of the present invention, the first fixing portion 2111 is a horizontally arranged connecting plate, and the connecting plate is provided with an assembly hole for screwing and fixing with the evaporator bracket; the second fixing portion 2112 includes a first claw 21121 and a second claw 21122 which are adjacently arranged and extend from one side of the evaporator 1, and the first claw 21121 and the second claw 21122 cooperate with each other to form a first limit portion for clamping and assembling with the evaporation tube of the evaporator 1.

[0052] Preferably, the first claw 21121 is partially recessed on one side close to the second claw 21122 to form a first limiting groove, which is in a "semicircular" shape; the second claw 21122 is partially recessed on one side close to the first claw 21121 to form a second limiting groove, which is in a "semicircular" shape and is arranged opposite to the first limiting groove. This arrangement allows the evaporation tube to be limitedly assembled into the first limiting groove and the second limiting groove to prevent it from falling out.

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

[0054] The side of the bracket 213 close to the lamp holder 211 is recessed inward to form a limiting groove 2131 for accommodating the pulse germicidal lamp 214 . The side of the bracket 213 away from the lamp holder 211 is provided with a first notch 2132 , which is communicated with 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 side wall 2113 is H3, wherein H2-H1=H3. This arrangement prevents the lamp holder 211 from blocking the light generated by the pulse germicidal lamp 214, thereby achieving a good sterilization effect and facilitating 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, wherein 0.6*L2<L1<0.9*L2. This arrangement can take into account the sterilization performance and heat dissipation performance of the pulse ultraviolet light module 21, while enabling it to have good mechanical strength and a long service life.

[0056] As an example of the present invention, a buckle 2133 is provided on the outside of the bracket 213, and a matching groove is provided on the lamp holder 211 at a position corresponding to the buckle 2133, and the buckle 2133 can be limitedly assembled into the matching groove. This arrangement can act on the buckle 2133 by applying force from the outside of the lamp holder 211, which facilitates the rapid disassembly and assembly of the bracket 213 and 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 buckle 2133, and the overall aesthetics is high. Preferably, buckles 2133 are provided on both sides of the bracket 213, and matching grooves are provided at positions relative to the first side wall 2113 and the second side wall 2114 and the buckle 2133. The arrangement has a simple structure and a beautiful appearance.

[0057] The pulse sterilization lamp 214 can be a xenon lamp or an ultraviolet lamp; preferably, the pulse sterilization lamp 214 is a xenon lamp, which outputs a high-level pulse of 5ms with an excitation time of seconds every 1s, and outputs 120 pulses in total. The pulse frequency of the pulse sterilization lamp 214 can be adjusted according to the number of bacteria, for example, first fast and then slow every second in the sterilization cycle.

[0058] During assembly, first install the sealing plugs 212 at both ends of the pulse sterilization lamp 214, then assemble the pulse sterilization lamp 214 into the limiting groove 2131 of the bracket 213, and then the bracket 213 is snap-fitted and assembled between the first side wall 2113 and the second side wall 2114 of the lamp holder 211 to form a pulse ultraviolet light module 21; press the lamp holder 211 downward to embed the evaporation tube of the evaporator 1 into the second fixing part 2112, and then screw the first fixing part 2111 of the lamp holder 211 to the evaporator bracket of the evaporator 1.

[0059] like Figure 10-13As shown, the pulse electric control module 22 is L-shaped and has an avoidance recess, which is used to avoid the evaporator connecting pipe. As an example of the present invention, the pulse electric control module 22 includes a second box body 223 and a second box cover 224 that are detachably connected. The first box body 221 and the first box cover 222 are arranged between the second box body 223 and the second box cover 224. The first box body 221 is partially embedded in the second box body 223, and the first box body 221 and the first box cover 222 are detachably connected. This arrangement can improve the explosion-proof and waterproof performance of the pulse electric control module 22, and the operation is safer and more stable. Preferably, the second box body 223 and the second box cover 224 are made of explosion-proof materials.

[0060] As an example of the present invention, a retaining rib 2213 is provided on one side of the first box body 221 close to the first box cover 222, and a snap-in groove 2214 is provided on the surrounding side of the retaining rib 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 snap-in groove 2233 is provided at the corresponding position of the second box body 223, and the first protrusion 2212 is limitedly assembled into the first snap-in groove 2233.

[0061] A plug 2211 is provided below the first box body 221, a second notch 2231 is provided at a position corresponding to the plug 2211 in the second box body 223, a slot 32 is provided on the whole machine electric control box 3, and the plug 2211 can be limitedly assembled into the slot 32; a wire hole 2215 is provided above the first box body 221 for supporting the cable. This setting can realize the fixation of one end of the first box body 221 and the whole machine electric control box 3 through the plug 2211, and at the same time, it has a limiting effect on the second box body 223, and the structure is simple and the assembly efficiency is high. Preferably, the wire hole 2215 extends outward from the first box body 221 for a certain distance, and this setting can provide strong support for the cable at the connection to avoid bending or even poor contact.

[0062] Preferably, the inserting piece 2211 is located on one side of the first box body 221 close to the second box body 223. This arrangement allows the inserting piece 2211 to be arranged as close to the whole machine electric control box 3 as possible, effectively preventing it from shaking back and forth and improving assembly tightness and reliability.

[0063] The second box body 223 is provided with a first connecting plate 2234 on a side away from the second notch 2231, and a second connecting plate 2242 is provided on the second box cover 224 at a position corresponding to the first connecting plate 2234. One side of the second connecting plate 2242 is fitted with the first connecting plate 2234. Both the first connecting plate 2234 and the second connecting plate 2242 are provided with assembly holes. A fixing column 31 is provided on the complete machine electric control box 3 at a position corresponding to the second connecting plate 2242. The first connecting plate 2234, the second connecting plate 2242, and the fixing column 31 are fixedly connected by screws. The structure of the arrangement is simple, and the second box body 223, the second box cover 224, and the complete machine electric control box 3 can be fixed at the same time by one screw, and the assembly efficiency is high.

[0064] The outer wall surface of the second box body 223 is provided with a second protrusion 2232, and the corresponding position of the second box cover 224 is provided with a second slot 2241, and the second protrusion 2232 can be limitedly assembled into the second slot 2241. The structure of the arrangement is simple, and the second box body 223 and the second box cover 224 are fixedly assembled by cooperating with the first connecting plate 2234 and the second connecting plate 2242, and the connection is stable and reliable; at the same time, the second protrusion 2232 is partially located on the appearance surface of the pulse electric control module 22, and the second protrusion 2232 can be quickly disassembled by pressing it, which is convenient for maintenance. It can be understood that the positions of the second slot 2241 and the second protrusion 2232 can be interchanged.

[0065] That is to say: after the circuit board of the pulse electric control module 22 is assembled to the first box body 221, the first box body 221 is partially embedded in the second box body 223, and the two are detachably connected through the first protrusion 2212 and the first card slot 2233. Then, the first box cover 222 is set on the first box body 221, and the two are assembled by cooperating with the card slot 2214 and the protrusion. Then, the second box cover 224 is set on the first box cover 222, and the second box cover 224 and the second box body 223 are assembled by embedding the second protrusion 2232 and the second card slot 2241. Then, the insert 2211 at the bottom of the first box body 221 is plugged into the slot 32, and the first connecting plate 2234 of the second box body 223 and the second connecting plate 2242 of the second box cover 224 are aligned with the fixing column 31 of the whole machine electric control box 3 and fixed by screws.

[0066] 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 an air inlet, a fan, an evaporator (1) and an electronic control box (3) for the whole unit, wherein the air sucked in from the air inlet is driven by the fan to pass through the evaporator (1) for heat exchange and then blown out, and the electronic control box (3) for the whole unit is located on one side of the length direction of the evaporator (1), characterized in that: A pulse sterilization component (2) is arranged in the air conditioner indoor unit, and the pulse sterilization component (2) comprises a pulse ultraviolet light module (21) and a pulse electric control module (22); The pulsed ultraviolet light module (21) comprises a pulsed germicidal lamp (214), which is located on a side of the evaporator (1) away from the fan. The pulsed light emitted by the pulsed germicidal lamp (214) at least irradiates the evaporator (1). The pulsed ultraviolet light module (21) is mounted on the evaporator (1), or is located at a distance of less than 8 mm from the evaporator (1).

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

3. The air conditioner indoor unit according to claim 1 or 2, characterized in that: Sealing plugs (212) are provided at both ends of the pulse germicidal lamp (214); the pulse ultraviolet light module (21) further comprises a lamp holder (211) and a bracket (213); the pulse germicidal lamp (214) is provided between the lamp holder (211) and the bracket (213); and the lamp holder (211) and the bracket (213) are detachably connected.

4. The air conditioner indoor unit according to claim 3, characterized in that: The evaporator (1) is provided with evaporator brackets at both ends in the length direction, respectively; a first fixing portion (2111) is provided at one end of the lamp holder (211) for being screwed and fixed to the evaporator bracket at one end; and a second fixing portion (2112) is provided at the other end of the lamp holder (211) for being snap-fitted and fixed to the evaporator (1).

5. The air conditioner indoor unit according to claim 4, characterized in that: The second fixing portion (2112) comprises a first clamping claw (21121) and a second clamping claw (21122) which are arranged adjacent to each other, wherein the first clamping claw (21121) and the second clamping claw (21122) extend toward one side of the evaporator (1) and together form a first limiting portion for clamping with the evaporator (1).

6. The air conditioner indoor unit according to claim 3, characterized in that: A side of the bracket (213) close to the lamp holder (211) is recessed inward to form a limiting groove (2131) for accommodating the pulse germicidal lamp (214); a first notch (2132) is provided on a side of the bracket (213) 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, wherein 0.6*L2<L1<0.9*L2.

7. The air conditioner indoor unit according to claim 1, characterized in that: The pulse electric control module (22) comprises a second box body (223) and a second box cover (224) which are detachably connected; a first box body (221) and a first box cover (222) are arranged between the second box body (223) and the second box cover (224); the first box body (221) is partially embedded in the second box body (223); and the first box body (221) and the first box cover (222) are detachably connected.

8. The air conditioner indoor unit according to claim 7, characterized in that: A retaining rib (2213) is arranged on one side of the first box body (221) close to the first box cover (222), and a snap-fitting groove (2214) is arranged around the retaining rib (2213) for detachably connecting with the first box cover (222); the first box body (221) and the second box body (223) are assembled by snap-fitting or screw-fitting.

9. The air conditioner indoor unit according to claim 8, characterized in that: A first protrusion (2212) is arranged on the periphery of the first box body (221), a first slot (2233) is arranged on the second box body (223) at a position corresponding to the first protrusion (2212), and the first protrusion (2212) is limitedly assembled into the first slot (2233).

10. The air conditioner indoor unit according to claim 9, characterized in that: An inserting piece (2211) is arranged below the first box body (221), a second notch (2231) is arranged on the second box body (223) at a position corresponding to the inserting piece (2211), a slot (32) is arranged on the whole machine electric control box (3) at a position corresponding to the inserting piece (2211), and the inserting piece (2211) can be limitedly assembled into the slot (32).

11. The air conditioner indoor unit according to claim 10, characterized in that: The second box body (223) is provided with a first connecting plate (2234) on a side away from the second notch (2231); the second box cover (224) is provided with a second connecting plate (2242) at a position corresponding to the first connecting plate (2234); one side of the first connecting plate (2234) is arranged in close contact with the second connecting plate (2242); a fixing column (31) is provided on the complete machine electrical control box (3) at a position corresponding to the second connecting plate (2242); the first connecting plate (2234), the second connecting plate (2242) and the fixing column (31) are fixed by screwing.

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