CN214791457U - Air conditioner - Google Patents

Abstract

The utility model provides an air conditioner relates to air conditioner technical field, and this air conditioner includes air conditioner casing, heat exchanger, through-flow fan blade, purification light source and reflection band, and the heat exchanger setting is in the air conditioner casing to enclose with the air conditioner casing and establish formation heat transfer cavity. Purify light source and reflection band and be located the both sides of heat transfer cavity respectively, when in actual use, purify the light source and launch sterilization purification light, sterilization purification light passes the heat exchanger and enters into the heat transfer cavity, realize once only disinfecting to the air, simultaneously, the sterilization purification light that the heat transfer cavity was passed in the part is reflected by the reflection band, realize disinfecting once more to the air, brought through the reflection and promoted light path length, thereby can realize the high-efficient suppression to the microorganism in the indoor set, promote the purifying effect that disinfects. Compared with the prior art, the utility model provides an air conditioner can realize fully inhibiting the microorganism in the indoor set air, and the purifying effect that disinfects is better.

Description

Air conditioner

Technical Field

The utility model relates to an air conditioner technical field particularly, relates to an air conditioner.

Background

The indoor unit of the air conditioner absorbs indoor air, and the air is also easily absorbed by microorganisms such as plankton, mold, and virus in the room. In addition, since the air conditioner can adjust the temperature and appropriately adjust the temperature, it is likely to become an environment where microorganisms grow.

In the prior art, several solutions have been presented for microorganisms of air conditioner indoor units, such as inhibiting microorganisms by antibacterial treatment of resin materials, metal materials used in the indoor units, however, this approach is not effective for planktonic microorganisms. Or the indoor unit is filled with ozone, but the ozone method is premised on high concentration and long-time exposure, has high structural requirements, and is harmful to human bodies. Although microorganisms in the air conditioner can be removed by ultraviolet (UV-C) irradiation, the light source output is small, and the effect of sufficiently suppressing microorganisms in the air of the indoor unit cannot be achieved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem how promote the abundant suppression effect to microorganism in the indoor set air.

In order to solve the problems, the utility model adopts the following technical proposal to solve.

An embodiment of the utility model provides an air conditioner, including air conditioner casing, heat exchanger, through-flow fan blade, purification light source and reflection band, the heat exchanger sets up in the air conditioner casing, and with the air conditioner casing encloses to establish and forms the heat transfer cavity, through-flow fan blade holding is in the heat transfer cavity, and with the air conditioner casing is connected, it sets up to purify the light source the windward side of heat exchanger, and be located one side of heat transfer cavity, the reflection band sets up in the air conditioner casing, and be located the opposite side of heat transfer cavity, purify the light source with the reflection band sets up relatively, purify the light source be used for to heat transfer cavity transmission sterilization purifies light, the reflection band is used for the reflection to pass the heat transfer cavity sterilization purifies light.

The utility model provides an air conditioner, the windward side of light source setting at the heat exchanger will purify, and set up the reflection band in the air conditioner casing, wherein purify the both sides that light source and reflection band are located the heat transfer cavity respectively, when in-service use, purify the light source and launch sterilization purification light, sterilization purification light passes the heat exchanger and enters into the heat transfer cavity, realize once only disinfecting to the air, and simultaneously, the sterilization purification light that the part passed the heat transfer cavity is reflected by the reflection band, realize disinfecting once more to the air, light path length has been promoted through the reflection band, thereby can realize the high-efficient suppression to the microorganism in the indoor set, promote the purifying effect that disinfects. Compared with the prior art, the utility model provides an air conditioner can realize fully inhibiting the microorganism in the indoor set air, and the purifying effect that disinfects is better.

Further, the air conditioner shell comprises a middle frame and a base, the heat exchanger is arranged on the middle frame, the cross-flow fan blade is arranged on the base, an air inlet is formed in the middle frame, an air outlet is formed in the base, the heat exchanger is arranged between the cross-flow fan blade and the air inlet, the air outlet is communicated with the heat exchange cavity, one of the purification light source and the reflection band is arranged on the inner side of the base, and the other is arranged on the inner side of the middle frame.

The utility model provides an air conditioner is through will purifying light source and reflection band branch establishing on base and center for the distribution range of the sterilization purification light of transmission and reflection is wider, thereby makes the purification scope of disinfecting wider, has promoted purifying effect.

Further, the purification light source comprises an LED light source for emitting short-wave ultraviolet rays.

The utility model provides an air conditioner realizes disinfecting through adopting UV-C light, and bactericidal effect is good, adopts the LED light source simultaneously, simple to operate, and light output is effectual.

Further, the reflection band comprises at least one of an aluminum band, a chromium band and a silver band.

The utility model provides an air conditioner has guaranteed the reflection effect through adopting aluminium strip, chromium area or silver area.

Furthermore, a plastic drainage sheet is attached to the inner side of the base and positioned below the reflecting belt for draining condensed water.

The utility model provides an air conditioner pastes dress plastics drainage piece through the below at the reflection band, can avoid the comdenstion water at the inside gathering of air conditioner casing with the comdenstion water discharge that produces around the reflection band because the heat exchanger heat radiation.

Furthermore, a connecting line between the purification light source and the reflection band is positioned above the cross-flow fan blade, so that the cross-flow fan blade is positioned outside an emergent light path of the purification light source.

The utility model provides an air conditioner sets up in through-flow fan blade top through the line that will purify light source and reflection band to make the sterilization of purifying light emission purify light can not the directive through-flow fan blade, avoided the effect of sheltering from of through-flow fan blade to sterilization purification light, guaranteed the reflection effect in reflection band.

Furthermore, at least part of the reflection light path of the reflection band is overlapped with the cross-flow fan blade, so that the sterilization and purification light reflected by the reflection band is irradiated on the cross-flow fan blade.

The utility model provides an air conditioner, with the sterilization purification light that the reflection band reflects out, beat on the through-flow fan blade to the realization has realized the mould proof function of through-flow fan blade to the sterilization purification function of through-flow fan blade.

Furthermore, the air conditioner shell further comprises a light screen, wherein the light screen is arranged on the middle frame, at least part of the light screen is suspended on the air inlet and used for shielding the air inlet.

The utility model provides an air conditioner, through setting up the light screen, and the light screen suspension is in the air intake, when guaranteeing the air inlet effect, can play the shading effect to the air intake, prevents that inside sterilization purification light from leaking, causes the influence to human health.

Further, the heat exchanger comprises a first heat exchanging portion, a second heat exchanging portion and a third heat exchanging portion, the first heat exchanging portion is connected with the middle frame, the second heat exchanging portion is connected with the first heat exchanging portion, the third heat exchanging portion is connected with the second heat exchanging portion and is close to the base, at least part of the second heat exchanging portion and at least part of the third heat exchanging portion correspond to the air inlet, the first heat exchanging portion is relatively far away from the air inlet, and the purification light source is arranged on the windward side of the first heat exchanging portion.

The utility model provides an air conditioner, the purification light source sets up in the windward side of first heat transfer portion, and first heat transfer portion keeps away from the air intake relatively for the purification light source sets up in the lower position of wind speed, has realized effectively shining to the air, and has realized the illumination of relative longer time, has guaranteed bactericidal effect, has promoted the bactericidal efficiency.

Further, the sterilization purification light that purifies the light source and launch is parallel light, the light-emitting side that purifies the light source still is provided with the lens of adjusting luminance, the lens of adjusting luminance is used for adjusting sterilization purification light, so that sterilization purification light passes the heat exchanger.

The utility model provides an air conditioner adjusts luminance lens through setting up, can make the purification light source jet out, and the sterilization purifies light and heat exchanger looks adaptation to pass the heat exchanger, realize the purification effect to the air.

Drawings

Fig. 1 is a schematic view of an overall structure of an air conditioner according to a first embodiment of the present invention;

fig. 2 is a schematic partial structural view of an air conditioner according to a first embodiment of the present invention.

Description of reference numerals:

100-an air conditioner; 111-middle frame; 113-a base; 115-air inlet; 117-air outlet; 130-a heat exchanger; 131-a first heat exchanging part; 133-a second heat exchanging portion; 135-a third heat exchanging part; 150-cross-flow fan blade; 151-heat exchange chamber; 170-purifying the light source; 180-a visor; 190-reflection band; 191-plastic drainage sheet.

Detailed Description

As disclosed in the background art, several solutions have been mainly adopted in the prior art for microorganisms inside the indoor unit of an air conditioner, such as inhibiting microorganisms by performing antibacterial treatment on resin materials and metal materials used in the indoor unit, or filling the indoor unit with ozone and the like, and removing microorganisms inside the air conditioner by ultraviolet irradiation. However, the antibacterial treatment of the resin material and the metal material is effective only on the antibacterial surface thereof, and is not effective against planktonic microorganisms and the like. Although ozone has an inhibitory effect on planktonic microorganisms, it is necessary to use a high concentration and a long-term exposure, and ozone is harmful to the human body. Although ultraviolet rays, particularly ultraviolet rays having a wavelength of less than 280nm (UV-C), can directly act on DNA of organisms to deprive the microorganisms of proliferation ability, thereby directly killing the microorganisms, they have no effect on portions not irradiated with ultraviolet rays, and cannot achieve the desired antibacterial effect unless air including air is sufficiently irradiated. Since a mercury lamp has been used for a UV-C light source, the mounting position thereof is limited. However, with the recent generation of UV-C emitting LEDs, the mounting of the LEDs on an air conditioning indoor unit is relatively easy. However, since the structure is a point light source and the output is small, a sufficient effect of suppressing microorganisms in the air in the indoor unit cannot be achieved.

In order to solve the above problems, the present invention provides an air conditioner with a novel sterilization structure, which can achieve sufficient inhibition effect for the microorganisms in the air, and for the purpose, features and advantages of the present invention can be more clearly understood, and the following detailed description is made in conjunction with the accompanying drawings.

First embodiment

Referring to fig. 1 and 2 in combination, the present embodiment provides an air conditioner 100, which can sufficiently suppress microorganisms in indoor unit air, and has better sterilization and purification effects, high safety and good reliability.

The air conditioner 100 provided by the embodiment comprises an air conditioner shell, a heat exchanger 130, a cross-flow fan blade 150, a purification light source 170 and a reflection band 190, wherein the heat exchanger 130 is arranged in the air conditioner shell and is surrounded with the air conditioner shell to form a heat exchange chamber 151, the cross-flow fan blade 150 is accommodated in the heat exchange chamber 151 and is connected with the air conditioner shell, the purification light source 170 is arranged on the windward side of the heat exchanger 130 and is located on one side of the heat exchange chamber 151, the reflection band 190 is arranged in the air conditioner shell and is located on the other side of the heat exchange chamber 151, the purification light source 170 and the reflection band 190 are arranged oppositely, the purification light source 170 is used for emitting sterilization purification light to the heat exchange chamber 151, and the reflection band 190 is used for reflecting the sterilization purification light passing through the heat exchange chamber 151.

In this embodiment, the air conditioner 100 in this embodiment is an indoor air conditioner, the heat exchanger 130 may be a finned tube type or parallel flow heat exchanger 130, and the purifying light source 170 is installed on the windward side of the heat exchanger 130, where the purifying light source 170 may be one or more. With purifying light source 170 setting in the windward side of heat exchanger 130, and set up reflection band 190 in the air conditioner casing, wherein purifying light source 170 and reflection band 190 are located the both sides of heat transfer chamber 151 respectively, when in actual use, purifying light source 170 launches the sterilization and purification light, the sterilization and purification light passes heat exchanger 130 and enters into heat transfer chamber 151, the realization is once disinfected to the air, and simultaneously, the sterilization and purification light that partly passes heat transfer chamber 151 is reflected by reflection band 190, the realization is once more disinfected to the air, light path length has been promoted through reflection band 190, thereby can realize the high-efficient suppression to the microorganism in the indoor set, promote the purification effect that disinfects.

In this embodiment, the purification light source 170 is a point light source for emitting divergent sterilization and purification light, and the sterilization and purification light may be converted into approximately parallel light after passing through the heat exchanger 130. Here, the finned tube heat exchanger 130 in which fins are arranged in parallel at equal intervals and the fin interval is narrow may be used. Meanwhile, the parallel flow heat exchanger 130 may be used when the sterilizing and purifying light easily passes through the corrugated fin by reducing the alignment angle of the light emitted from the purifying light source 170. There is no specific requirement for the alignment angle of the purification light sources 170, but when selecting purification light sources 170 with longer range and smaller alignment angle, the reflection position is easier to determine, which is beneficial to the installation of the reflection band 190.

It should be noted that, in this embodiment, the heat exchanger 130 is C-shaped, and forms a heat exchange chamber 151 together with the lower portion of the air conditioner casing, and the cross-flow fan 150 is located at the bottom of the heat exchange chamber 151 and connected to the air conditioner casing.

In this implementation, purification light source 170 comprises an LED light source for emitting short wavelength ultraviolet (UV-C) light. Specifically, in the present embodiment, a UV-LED is adopted, and a UV-C emitting LED is selected, the peak value of the emission wavelength of the UV-C is below 280nm, wherein the LED material may be selected from a material with a larger semiconductor energy band width. Regarding the specific structure and the light emitting principle of the LED light source, reference may be made to the existing ultraviolet LED lamp. The sterilization is realized by adopting UV-C light, the sterilization effect is good, and meanwhile, the LED light source is adopted, so that the installation is convenient, and the light output effect is good.

It should be noted that, in other preferred embodiments of the present invention, the purification light source 170 may also be a conventional mercury lamp or other device capable of emitting short-wave ultraviolet rays, and is not limited herein.

In the present embodiment, the reflection band 190 includes at least one of an aluminum band, a chrome band, a silver band, and a stainless band, and the reflection effect is ensured by using the aluminum band, the chrome band, the silver band, or the stainless band. Preferably, the reflective tape 190 may be an aluminum tape, and the aluminum tape is attached to the inner wall of the air conditioner casing and corresponds to the purifying light source 170, so as to reflect the sterilizing and purifying light. The reflective tape 190 may be formed by directly attaching a reflective material to the inner surface of the air conditioner case, wherein the reflective material may be at least one of aluminum, chromium, silver, and stainless steel, and the reflective material is attached to the inner surface of the air conditioner case in a large area where the sterilizing and purifying light may be irradiated.

The air conditioner shell comprises a middle frame 111 and a base 113, a heat exchanger 130 is arranged on the middle frame 111, a cross-flow fan blade 150 is arranged on the base 113, an air inlet 115 is formed in the middle frame 111, an air outlet 117 is formed in the base 113, the heat exchanger 130 is arranged between the cross-flow fan blade 150 and the air inlet 115, the air outlet 117 is communicated with a heat exchange chamber 151, one of a purifying light source 170 and a reflecting belt 190 is arranged on the inner side of the base 113, and the other is arranged on the inner side of the middle frame 111. Through will purifying light source 170 and reflection band 190 and dividing on base 113 and center 111 for the distribution range of the sterilization purification light of transmission and reflection is wider, thereby makes the purification scope of disinfecting wider, has promoted purifying effect.

Specifically, in this embodiment, the purification light source 170 is disposed on the middle frame 111 and located on the windward side of the heat exchanger 130, and the reflection band 190 is disposed on the base 113 and also located on the windward side of the heat exchanger 130, so as to ensure that the sterilization purification light emitted from the purification light source 170 can completely pass through the heat exchange chamber 151 and pass through the heat exchanger 130 twice, thereby ensuring the sterilization effect.

In the present embodiment, the middle frame 111 is disposed at the front side, and the base 113 is hung on the wall through a hanging plate, and the installation manner of the base is the same as that of a conventional air conditioner indoor unit, which will not be described more. In addition, the air inlet 115 is disposed on the top side of the middle frame 111 to realize top air intake, the air outlet 117 is disposed at the bottom of the base 113 and located below the cross-flow fan 150, an air duct is formed in the base 113 below the cross-flow fan 150 to guide air to the air outlet 117 through the air duct, and reference may be made to the existing indoor unit of the air conditioner in detail with respect to the air inlet and outlet structure and principle of the air conditioner 100.

It should be noted that, purification light source 170 and reflection band 190 are installed in the slant in this embodiment, and purification light source 170 is installed in the latter half of center 111, and reflection band 190 is installed in the upper half of base 113 to make the sterilization purification light that purifies light transmission can upwards go out light in the slant, guarantee that it can pass heat transfer chamber 151, and increased the optical path length of sterilization purification light objectively, further strengthened the inhibitory effect to the microorganism.

In this embodiment, a plastic drainage sheet 191 is further attached to the inner side of the base 113, and the plastic drainage sheet 191 is located below the reflective belt 190 for draining the condensed water. Specifically, the plastic drainage sheet 191 is made of EPDM plastic, wherein the EPDM plastic is a terpolymer of ethylene, propylene and a non-conjugated diene. The plastic drainage sheet 191 is attached to the inner wall of the base 113 and can be conducted to a water pan or a drainage hole below the base 113, and the reflection band 190 and the surrounding area inside the base 113 can generate certain condensed water due to the heat radiation effect of the heat exchanger 130. By mounting the plastic drainage sheet 191 below the reflection band 190, the condensed water around the reflection band 190 due to the heat radiation of the heat exchanger 130 can be drained, and the condensed water is prevented from being collected inside the air conditioner case.

In this embodiment, the connecting line between the purifying light source 170 and the reflective strip 190 is located above the flow-through fan 150, so that the flow-through fan 150 is located outside the exit light path of the purifying light source 170. The connecting line of the purifying light source 170 and the reflecting belt 190 is arranged above the through-flow fan blade 150, so that the sterilizing and purifying light emitted by the purifying light cannot be emitted to the through-flow fan blade 150, the shielding effect of the through-flow fan blade 150 on the sterilizing and purifying light is avoided, and the reflecting effect of the reflecting belt 190 is ensured.

It should be noted that, here, the line connecting the purification light source 170 and the reflection band 190 refers to the line connecting the purification light source 170 and the lower side of the reflection band 190, which can identify the light emitted by the purification light source 170 and located at the lowest part. Meanwhile, the cross-flow fan blade 150 is located outside the exit light path of the purification light source 170, which means that any part of the cross-flow fan blade 150 is located outside the exit light path of the purification light source 170, thereby preventing the purification light source 170 from directly emitting to the cross-flow fan blade 150, and because the cross-flow fan blade 150 adopts resin or metal, the light is shielded to a certain extent, and the influence of the sterilization effect of the sterilization and purification light caused by the fact that the cross-flow fan blade 150 shields the sterilization and purification light is avoided by setting the relationship among the cross-flow fan blade 150, the purification light source 170 and the reflection belt 190.

In this embodiment, at least a part of the reflection light path of the reflection band 190 coincides with the cross-flow fan blade 150, so that the sterilization and purification light reflected by the reflection band 190 impinges on the cross-flow fan blade 150. Specifically, by adjusting the installation position of the reflection band 190 and the inclination angle of the reflection surface, part of the reflected light can be incident on the cross-flow fan blade 150, so that the sterilization and purification functions of the cross-flow fan blade 150 are realized, and the mildew-proof function of the cross-flow fan blade 150 is realized.

In this embodiment, the air conditioner housing further includes a light shielding plate 180, and the light shielding plate 180 is disposed on the middle frame 111 and at least partially suspended on the air inlet 115 for shielding the air inlet 115. Specifically, the light screen 180 sets up the top at center 111 to shelter from on air intake 115, and has certain clearance between light screen 180 and the air intake 115, in order to guarantee conventional air inlet effect, through setting up light screen 180, and light screen 180 suspends in air intake 115, when guaranteeing the air inlet effect, can play the shading effect to air intake 115, prevent that inside sterilization purification light from leaking, cause the influence to the health.

In this embodiment, the heat exchanger 130 includes a first heat exchanging portion 131, a second heat exchanging portion 133, and a third heat exchanging portion 135, the first heat exchanging portion 131 is connected to the middle frame 111, the second heat exchanging portion 133 is connected to the first heat exchanging portion 131, the third heat exchanging portion 135 is connected to the second heat exchanging portion 133 and is disposed near the base 113, the second heat exchanging portion 133 and the third heat exchanging portion 135 at least partially correspond to the air inlet 115, the first heat exchanging portion 131 is disposed relatively far from the air inlet 115, and the purifying light source 170 is disposed on the windward side of the first heat exchanging portion 131. Specifically, the purification light source 170 is disposed on the windward side of the first heat exchanging portion 131, and the first heat exchanging portion 131 is relatively far away from the air inlet 115, so that the purification light source 170 is disposed at a position with a low air speed, effective irradiation to air is realized, relatively longer illumination is realized, a sterilization effect is ensured, and sterilization efficiency is improved.

Here, the purification light source 170 may be disposed at another position where the wind speed is low, for example, at the joint of the first heat exchanging portion 131 and the second heat exchanging portion 133.

In summary, in the air conditioner 100 provided in this embodiment, the purification light source 170 and the reflection band 190 are respectively located at two sides of the heat exchange chamber 151, when in actual use, the purification light source 170 emits sterilization purification light, the sterilization purification light passes through the heat exchanger 130 and enters the heat exchange chamber 151, so as to realize primary sterilization of air, meanwhile, part of the sterilization purification light passing through the heat exchange chamber 151 is reflected by the reflection band 190, so as to realize secondary sterilization of air, and the light path length is increased by the reflection band 190, thereby realizing efficient inhibition of microorganisms in the indoor unit, and improving the sterilization purification effect. Further, by providing the plastic drainage sheet 191, the condensed water generated in the reflection belt 190 and the periphery thereof can be drained, and the condensed water can be prevented from being collected inside. Meanwhile, the anti-mildew function of the cross-flow fan blade 150 can be realized by hitting the reflected light rays on the cross-flow fan blade 150, and the ultraviolet light can be prevented from leaking to cause damage to human eyes by additionally arranging the light shielding plate 180.

Second embodiment

The present embodiment provides an air conditioner 100, the basic structure and principle and the technical effect thereof are the same as those of the first embodiment, and for the sake of brief description, no part of the present embodiment is mentioned, and reference may be made to the corresponding contents of the first embodiment. The present embodiment is different from the first embodiment in the purification light source 170.

In the middle of the embodiment, the sterilization and purification light emitted from the purification light source 170 is parallel light, that is, the purification light source 170 is a surface light source, and a light-emitting side of the purification light source 170 is further provided with a light-adjusting lens (not shown) for adjusting the sterilization and purification light, so that the sterilization and purification light passes through the heat exchanger 130. Specifically, the purification light source 170 can adapt the sterilization purification light emitted from the purification light source 170 to the heat exchanger 130 through the dimming lens, so as to pass through the heat exchanger 130, thereby achieving the purification effect on the air. Wherein, the specific adjusting principle of the light adjusting lens can refer to the prior light adjusting lens.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Claims (10)

1. An air conditioner is characterized by comprising an air conditioner shell, a heat exchanger (130), cross-flow fan blades (150), a purification light source (170) and a reflection band (190), wherein the heat exchanger (130) is arranged in the air conditioner shell, and forms a heat exchange chamber (151) with the air conditioner shell in an enclosing way, the cross-flow fan blade (150) is accommodated in the heat exchange chamber (151), and is connected with the air-conditioning shell, the purification light source (170) is arranged on the windward side of the heat exchanger (130), and is positioned at one side of the heat exchange chamber (151), the reflection band (190) is arranged in the air conditioner shell, and is positioned at the other side of the heat exchange chamber (151), the purification light source (170) is arranged opposite to the reflection belt (190), the purification light source (170) is used for emitting sterilization and purification light to the heat exchange chamber (151), the reflection band (190) is used for reflecting the sterilization and purification light rays passing through the heat exchange chamber (151).

2. The air conditioner as claimed in claim 1, wherein the air conditioner casing comprises a middle frame (111) and a base (113), the heat exchanger (130) is arranged on the middle frame (111), the cross-flow fan blade (150) is arranged on the base (113), an air inlet (115) is arranged on the middle frame (111), an air outlet (117) is arranged on the base (113), the heat exchanger (130) is arranged between the cross-flow fan blade (150) and the air inlet (115), the air outlet (117) is communicated with the heat exchange chamber (151), one of the purification light source (170) and the reflection band (190) is arranged on the inner side of the base (113), and the other one of the purification light source and the reflection band is arranged on the inner side of the middle frame (111).

3. The air conditioner of claim 2, wherein the purification light source (170) comprises an LED light source for emitting short wave ultraviolet light.

4. The air conditioner of claim 2, wherein the reflective tape (190) comprises at least one of an aluminum tape, a chrome tape, and a silver tape.

5. The air conditioner as claimed in claim 2, wherein a plastic drain sheet (191) is further attached to an inner side of the base (113), the plastic drain sheet (191) being positioned below the reflection band (190) for draining condensed water.

6. The air conditioner according to claim 2, characterized in that the connecting line of the purifying light source (170) and the reflection band (190) is located above the cross-flow fan blade (150) so that the cross-flow fan blade (150) is located outside the exit light path of the purifying light source (170).

7. The air conditioner according to claim 6, characterized in that the reflection light path of the reflection band (190) is at least partially overlapped with the cross-flow fan blade (150) so that the sterilizing and purifying light reflected by the reflection band (190) impinges on the cross-flow fan blade (150).

8. The air conditioner as claimed in claim 2, wherein the air conditioner case further comprises a light shielding plate (180), the light shielding plate (180) being disposed on the middle frame (111) and being at least partially suspended on the intake vent (115) for shielding the intake vent (115).

9. The air conditioner according to claim 2, wherein the heat exchanger (130) includes a first heat exchanging portion (131), a second heat exchanging portion (133), and a third heat exchanging portion (135), the first heat exchanging portion (131) is connected to the middle frame (111), the second heat exchanging portion (133) is connected to the first heat exchanging portion (131), the third heat exchanging portion (135) is connected to the second heat exchanging portion (133) and is disposed adjacent to the base (113), the second heat exchanging portion (133) and the third heat exchanging portion (135) at least partially correspond to the air intake (115), the first heat exchanging portion (131) is disposed relatively far from the air intake (115), and the purification light source (170) is disposed on a windward side of the first heat exchanging portion (131).

10. The air conditioner as claimed in claim 1, wherein the sterilizing and purifying light emitted from the purifying light source (170) is parallel light, and a light emitting side of the purifying light source (170) is further provided with a light adjusting lens for adjusting the sterilizing and purifying light so that the sterilizing and purifying light passes through the heat exchanger (130).

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