CN217844226U - Indoor machine of air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit, air conditioner indoor unit includes: the air conditioner comprises a machine shell, a fan and a controller, wherein the machine shell comprises a base and a shell, and the shell is detachably arranged on the base and is provided with an air inlet; the heat exchanger is arranged in the shell and is arranged on the base; sterilizing equipment, sterilizing equipment locates in the casing and be located the air intake with between the heat exchanger, sterilizing equipment includes the casing and locates illuminating part in the casing, the orientation of casing one side of heat exchanger is equipped with light trap and baffle, the light of illuminating part passes through the light trap jets out, the baffle is used for sheltering from the light of illuminating part to the direction propagation of shell. According to the utility model discloses air conditioner indoor unit not only can avoid the ultraviolet irradiation user, can slow down air flow rate moreover, improves bactericidal effect.

Description

Indoor machine of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioning technique and specifically relates to an air conditioner indoor unit is related to.

Background

Air conditioner among the correlation technique is equipped with sterilizing equipment usually to an inside part carries out bacterial treatment to indoor air and air conditioner, and then air-purifying, but, because sterilizing equipment's structure sets up unreasonablely, lead to degerming efficiency not high, in addition, when the user opened air conditioner's casing in air conditioner operation process, sterilizing equipment's light can shine the user, probably causes the injury to user's health.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an air conditioner, this air conditioner not only can avoid the ultraviolet irradiation user, can slow down air flow rate moreover, improves bactericidal effect.

In order to achieve the above object, an embodiment of the present invention provides an air conditioner indoor unit, including: the air conditioner comprises a shell, a fan and a fan, wherein the shell comprises a base and a shell, and is detachably arranged on the base and provided with an air inlet; the heat exchanger is arranged in the shell and is arranged on the base; sterilizing equipment, sterilizing equipment locates in the casing and be located the air intake with between the heat exchanger, sterilizing equipment includes the casing and locates illuminating part in the casing, the orientation of casing one side of heat exchanger is equipped with light trap and baffle, the light of illuminating part passes through the light trap jets out, the baffle is used for sheltering from illuminating part light to the direction propagation of shell.

According to the utility model discloses air conditioner indoor unit not only can avoid the ultraviolet irradiation user, can slow down air flow rate moreover, improves bactericidal effect.

According to some embodiments of the present invention, an included angle θ between a plane perpendicular to the central axis of the light transmission hole and the baffle is 60 ° to 150 °.

According to some embodiments of the invention, the baffle is connected with the width direction's of casing preceding side, the baffle is followed the length direction of casing extends.

According to some embodiments of the utility model, the casing still is equipped with the ventilation passageway, the one end of ventilation passageway is run through the orientation of casing one side of heat exchanger, the other end of ventilation passageway runs through the orientation of casing one side of air intake.

According to some embodiments of the present invention, the light-transmitting holes are plural, and the light-emitting members are plural in one-to-one correspondence with the light-transmitting holes; the ventilation passageway is a plurality of, and a plurality of light trap and a plurality of ventilation passageway are followed the length direction of casing is alternative and the interval sets up.

According to some embodiments of the utility model, it is a plurality of the ventilation passageway includes first ventilation passageway, second ventilation passageway and third ventilation passageway, the second ventilation passageway is in locate on the length direction of casing first ventilation passageway with between the third ventilation passageway, just the cross-sectional area of second ventilation passageway is greater than the cross-sectional area of first ventilation passageway with the cross-sectional area of third ventilation passageway.

According to some embodiments of the invention, the housing comprises: the first shell is positioned on one side, facing the air inlet, of the light-emitting piece, and is provided with heat dissipation holes, and the heat dissipation holes correspond to the positions of the light-emitting piece and are used for dissipating heat of the light-emitting piece; the second shell is positioned on one side, facing the heat exchanger, of the light-emitting piece, and the second shell is provided with the light-transmitting hole and the baffle; wherein both ends of the ventilation channel respectively penetrate through the first housing and the second housing.

According to some embodiments of the invention, the one end of the side wall of the ventilation channel is connected with one of the first casing and the second casing, and the other end of the side wall of the ventilation channel is stopped with the other of the first casing and the second casing.

According to some embodiments of the utility model, the light trap with the distance of heat exchanger is 5mm ~ 50mm.

According to some embodiments of the utility model, the both ends of casing are equipped with joint portion and support respectively, joint portion locates the orientation of casing one side of heat exchanger and with the baffle is connected, joint portion be constructed with the draw-in groove of the pipeline joint of heat exchanger, the support with the end plate of heat exchanger is connected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of an air conditioner indoor unit according to an embodiment of the present invention.

Fig. 2 is a sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention.

Fig. 3 is a detailed view at a of fig. 2.

Fig. 4 is a schematic structural diagram of a sterilization device according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of another view angle of the sterilization device according to the embodiment of the present invention.

Fig. 6 is an exploded view of a sterilization device according to an embodiment of the present invention.

Fig. 7 is another exploded view of a sterilization device according to an embodiment of the present invention.

Fig. 8 is a sectional view of a sterilization device according to an embodiment of the present invention.

Fig. 9 is a schematic structural diagram of the first housing of the sterilization device according to the embodiment of the present invention.

Fig. 10 is a schematic structural diagram of a second housing of a sterilization device according to an embodiment of the present invention.

Reference numerals:

an indoor machine 1 of an air conditioner,

A casing 100, a base 110, a housing 120, an air inlet 121,

A heat exchanger 200,

The sterilization device 300, a housing 310, a clamping part 311, a bracket 312, a first housing 320, a heat radiation hole 321, a second housing 330, a ventilation channel 331, a first ventilation channel 332, a second ventilation channel 333, a third ventilation channel 334, a light transmission hole 335, a baffle 336, a light emitting piece 340 and a battery 350.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "the first feature" and "the second feature" may include one or more of the features.

In the description of the present invention, "a plurality" means two or more, and "a plurality" means one or more.

An air conditioner indoor unit 1 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 to 10, an air conditioner indoor unit 1 according to an embodiment of the present invention includes a cabinet 100, a heat exchanger 200, and a sterilization device 300.

The casing 100 includes a base 110 and a housing 120, the housing 120 is detachably mounted on the base 110 and is provided with an air inlet 121, the heat exchanger 200 is disposed in the casing 100 and is mounted on the base 110, the sterilization device 300 is disposed in the casing 100 and is located between the air inlet 121 and the heat exchanger 200, the sterilization device 300 includes a housing 310 and a light-emitting member 340 disposed in the housing 310, a light hole 335 and a baffle 336 are disposed on one side of the housing 310 facing the heat exchanger 200, light of the light-emitting member 340 is emitted through the light hole 335, and the baffle 336 is used for shielding the light of the light-emitting member 340 from propagating towards the housing 120.

For example, the sterilization device 300 may be an ultraviolet sterilization device 300, and the ultraviolet sterilization device 300 may generate ultraviolet rays to irradiate air for sterilization. A battery 350 for supplying power to the ultraviolet sterilizer 300 is provided in the housing 100.

According to the utility model discloses air conditioner 1, through including base 110 and shell 120 with casing 100, shell 120 detachably installs in base 110, and like this, air conditioner 1's spare part can be installed in base 110, again through with base 110 and wall connection to support with air conditioner 1 and be fixed in the wall body, and, casing 310 can cover the spare part of protection air conditioner 1, and can expose air conditioner 1's spare part through dismantling casing 310, and it is clean to be convenient for maintain.

Furthermore, the housing 120 is provided with an air inlet 121, the heat exchanger 200 is disposed in the casing 100 and is mounted on the base 110, the sterilization device 300 is disposed in the casing 100 and is located between the air inlet 121 and the heat exchanger 200, thus, the air flow enters the inside of the air conditioner indoor unit 1 from the air inlet 121 and flows towards the heat exchanger 200, in the path of the air flow towards the heat exchanger 200, the air flow passes through the sterilization device 300 first, the sterilization device 300 can sterilize the air flow by irradiating the air flow, thereby ensuring the air flow passing through the sterilization device 300, so as to improve the sterilization efficiency of the sterilization device 300, and the indoor air can circularly flow through the air conditioner indoor unit 1, and further, the sterilization device 300 can be used for circularly sterilizing the indoor air.

In addition, through locating sterilizing equipment 300 between air intake 121 and heat exchanger 200, sterilizing equipment 300 can also utilize sterilizing equipment 300 to disinfect to the surface of heat exchanger 200 when disinfecting the air current to can reduce the bacterial growing on the surface of heat exchanger 200 by a wide margin, avoid the air to flow through heat exchanger 200 surface and by secondary pollution, further improve the purifying effect of air conditioner 1 to the room air.

In addition, sterilizing equipment 300 includes casing 310 and the illuminating part 340 of locating in casing 310, one side of casing 310 towards heat exchanger 200 is equipped with light trap 335 and baffle 336, the light of illuminating part 340 jets out through light trap 335, it can be understood that, shell 120 can play the effect of sheltering from illuminating part 340 and shining the user, through setting up baffle 336, baffle 336 can be used for sheltering from the light of illuminating part 340 and propagate to the direction of shell 120, when the user is dismantling shell 120, thereby can utilize baffle 336 to shelter from illuminating part 340 and shine the user, the light direct irradiation user of sterilizing equipment 300 has been avoided more effectively, avoid causing the injury to the user, user experience is better.

Moreover, baffle 336 locates the one side of casing 310 towards heat exchanger 200, and baffle 336 can disturb the air inlet between casing 310 and heat exchanger 200 to can play the vortex effect, with the velocity of flow that reduces the air current when through sterilizing equipment 300, make the air current the time of being shone the sterilization longer when through sterilizing equipment 300, further improved sterilizing equipment 300 to the bactericidal efficiency of air current, the bactericidal effect is better.

Therefore, according to the utility model discloses air conditioner indoor unit 1 not only can avoid the ultraviolet irradiation user, can slow down air flow rate moreover, improves bactericidal effect.

In some embodiments of the present invention, as shown in fig. 8, the angle θ between the plane perpendicular to the central axis of the light-transmitting hole 335 and the baffle 336 is 60 ° to 150 °. For example, the angle θ between the plane perpendicular to the central axis of the light transmission hole 335 and the bezel 336 may be 60 °, 70 °, 80 °, 90 °, 100 °, 110 °, 120 °, 130 °, 140 °, or 150 °.

Like this, baffle 336 is great in the area of the projection on the plane of the width direction of perpendicular to sterilizing equipment 300, baffle 336 is better to the effect that shelters from of illuminating part 340, not only can avoid illuminating part 340's light more effectively to shine to shell 120, and then can avoid illuminating part 340's light to shine the user, furthermore, baffle 336 can play effectual vortex effect, thereby reduce the velocity of flow of air current through baffle 336 by a wide margin, so that the velocity of flow that the air current flows to heat exchanger 200 by sterilizing equipment 300 is slower, sterilizing equipment 300 can kill its air current of flowing through more fully.

In some embodiments of the present invention, as shown in fig. 2, 3 and 8, the baffle 336 is connected to the front side of the housing 310 in the width direction, and the baffle 336 extends along the length direction of the housing 310.

It is understood that the base 110 of the air conditioner indoor unit 1 may be fixed to a wall, the front side of the air conditioner indoor unit 1 refers to a side of the air conditioner indoor unit 1 far from the wall, and the front-back direction of the sterilization device 300, i.e. the front side of the width direction of the housing 310 refers to a side of the width direction of the housing 310 far from the base 110.

In addition, the length dimension of the baffle 336 may be the same as the length dimension of the casing 310, the length direction of the casing 310 extends along the length direction of the heat exchanger 200, both ends in the width direction of the casing 310 may be fixed to the heat exchanger 200 or the base 110, and the length direction dimension of the casing 310 is large, and the air flow may flow toward the heat exchanger 200 from the gap between both sides in the width direction of the casing 310 and the heat exchanger 200.

From this, baffle 336 can shelter from the preceding side of the width direction of casing 310 better, and then can avoid illuminating part 340's light to shine the user, and baffle 336 can cover the partial clearance between casing 310 and the heat exchanger 200 along the length direction of casing 310 in addition to improve baffle 336's vortex effect, slow down the air flow rate in the ultraviolet irradiation region, disinfect more fully.

In some embodiments of the present invention, as shown in fig. 2-8, the housing 310 is further provided with a ventilation channel 331, one end of the ventilation channel 331 penetrates through a side of the housing 310 facing the heat exchanger 200, and the other end of the ventilation channel 331 penetrates through a side of the housing 310 facing the air inlet 121.

That is to say, the ventilation channel 331 can penetrate through the housing 310, and the indoor air can flow into the heat exchanger 200 through the ventilation channel 331 after entering the air conditioner indoor unit 1 through the air inlet 121, so that the ventilation channel 331 can improve the air flow passing through the sterilization device 300, thereby improving the air flow within the irradiation range of the light-emitting element 340, further improving the sterilization efficiency of the sterilization device 300, and the sterilization effect of the air conditioner indoor unit 1 on the indoor air is better.

In some embodiments of the present invention, the light hole 335 is plural, the light emitting element 340 is plural corresponding to the light hole 335 one to one, the ventilation channel 331 is plural, and the plural light holes 335 and the plural ventilation channels 331 are alternately arranged at intervals along the length direction of the housing 310.

Like this, the quantity of illuminating part 340 is more, the light irradiation scope of illuminating part 340 is bigger, sterilizing efficiency of sterilizing equipment 300 has further been improved, and, through setting up a plurality of light trap 335 and a plurality of ventilation passageway 331 interval in turn, a plurality of ventilation passageway 331 can the air inlet simultaneously, in order to improve the air mass flow in the sterilizing equipment 300 irradiation region of flowing through, and every ventilation passageway 331 and light trap 335's distance can all be nearer, the air current that flows through ventilation passageway 331 can be irradiated by the light that its adjacent light trap 335 jets out and disinfect, avoided the air current in the ventilation passageway 331 not by sterilizing equipment 300 irradiation and directly flowed to heat exchanger 200, sterilizing equipment 300's bactericidal effect has further been improved.

Further, as shown in fig. 4 and 5, the plurality of ventilation passages 331 includes a first ventilation passage 332, a second ventilation passage 333, and a third ventilation passage 334, the second ventilation passage 333 is provided between the first ventilation passage 332 and the third ventilation passage 334 in the length direction of the housing 310, and the cross-sectional area of the second ventilation passage 333 is larger than the cross-sectional area of the first ventilation passage 332 and the cross-sectional area of the third ventilation passage 334.

That is, the second ventilation channel 333 may be disposed at a middle position in the length direction of the housing 310, the air flow passing through the second ventilation channel 333 is larger by setting the cross-sectional area of the second ventilation channel 333 to be larger, and the light holes 335 are disposed at both sides of the second ventilation channel 333 along the length direction of the housing 310, the air flow may flow to the light holes 335 at both sides in the length direction after passing through the second ventilation channel 333, the light of the light-emitting member 340 may irradiate the air flow flowing out through the second ventilation channel 333 through the light holes 335 at both sides in the length direction, thereby increasing the air flow irradiated by the sterilization device 300 to improve the sterilization effect.

In addition, the first ventilation channel 332 and the third ventilation channel 334 are set to be small, so that the structural strength of the housing 310 can be prevented from being too low, and the sterilization device 300 is not easily damaged.

For example, the distance between the second ventilation channel 333 and the heat exchanger 200 is greater than the distance between the first ventilation channel 332 and the heat exchanger 200 and the distance between the third ventilation channel 334 and the heat exchanger 200, so that the blockage of the outlet air of the second ventilation channel 333 to the heat exchanger 200 is avoided, and the air flow rate is ensured.

In some embodiments of the present invention, as shown in fig. 6 and 7, the housing 310 includes a first housing 320 and a second housing 330.

The first housing 320 is located on one side of the light emitting element 340 facing the air inlet 121, the first housing 320 is provided with a heat dissipation hole 321, the heat dissipation hole 321 corresponds to the light emitting element 340 in position and is used for dissipating heat of the light emitting element 340, the second housing 330 is located on one side of the light emitting element 340 facing the heat exchanger 200, and the second housing 330 is provided with a light hole 335 and a baffle 336. Both ends of the ventilation channel 331 penetrate the first housing 320 and the second housing 330, respectively.

Through setting up first casing 320 and second casing 330 components of a whole that can function independently, can simplify the structure of casing 310, the processing of casing 310 of being convenient for, moreover, can assemble sterilizing equipment 300 between first casing 320 and second casing 330 during the assembly, first casing 320 and second casing 330 can be fixed and protect sterilizing equipment 300, louvre 321 on first casing 320 can accelerate the radiating efficiency of luminous piece 340, avoid the high temperature of luminous piece 340, sterilizing equipment 300's safety in utilization is better.

For example, the light emitting element 340 can emit light only to one side of the light hole 335, the light of the light emitting element 340 can only be emitted from the light hole 335, and the heat dissipation hole 321 only dissipates heat from the light emitting element 340 and does not emit the light of the light emitting element 340. Also, the battery 350 may be mounted between the first case 320 and the second case 330.

In some embodiments of the present invention, as shown in fig. 6 and 8, one end of the side wall of the ventilation channel 331 is connected to one of the first and second cases 320 and 330, and the other end of the side wall of the ventilation channel 331 abuts against the other of the first and second cases 320 and 330.

Wherein, the side wall of the ventilation channel 331 extends along the thickness direction of the housing 310, the side wall of the ventilation channel 331 surrounds to form the ventilation channel 331, one end of the side wall of the ventilation channel 331 refers to the axial end of the ventilation channel 331, the axial end of the side wall of the ventilation channel 331 can be integrally connected with the first housing 320 or the second housing 330, and when assembling, the axial other end of the ventilation channel 331 can be sealed against the other one of the first housing 320 and the second housing 330.

That is, the side wall of the ventilation channel 331 is closed, so that the ventilation channel 331 and the light hole 335 can be separated, the light of the light emitting element 340 cannot irradiate into the ventilation channel 331, and the light of the light emitting element 340 is prevented from irradiating to a user through the housing 310, and the ventilation channel 331 has a better guiding function for the air flow, so that the air flow is prevented from flowing into the housing 310 of the sterilization apparatus 300 through the ventilation channel 331, so that the air flow can stably flow to the heat exchanger 200 along the air inlet 121 and the ventilation channel 331.

In some embodiments of the present invention, as shown in fig. 2 and 3, the distance between the light hole 335 and the heat exchanger 200 is 5mm to 50mm. For example, the distance of the light transmissive hole 335 from the heat exchanger 200 may be 5mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, or 50mm.

Wherein, a side of the second housing 330 facing the heat exchanger 200 may be spaced apart from the heat exchanger 200, and a side of the light transmission hole 335 facing the heat exchanger 200 is higher than a side of the second housing 330 facing the heat exchanger 200, so that the light transmission hole 335 can be spaced apart from the heat exchanger 200.

Like this, on the one hand avoid the distance undersize of light trap 335 and heat exchanger 200 to it is enough big to improve the irradiation area that illuminating part 340 sees through light trap 335, in order to guarantee sterilizing equipment 300's good bactericidal effect, can carry out more effective sterilization to the indoor air that flows through, on the other hand can avoid the distance of light trap 335 and heat exchanger 200 too far away, and then has reduced the light irradiation probability of illuminating part 340 to the user, has avoided causing the injury to the user.

In some embodiments of the present invention, as shown in fig. 6 and 7, the two ends of the casing 310 are respectively provided with a clamping portion 311 and a bracket 312, the clamping portion 311 is disposed on one side of the casing 310 facing the heat exchanger 200 and connected with the baffle 336, the clamping portion 311 is configured with a clamping groove clamped with the pipe of the heat exchanger 200, and the bracket 312 is connected with the end plate of the heat exchanger 200.

From this, joint portion 311 of casing 310 can be with the pipeline joint of heat exchanger 200, so not only can be fixed casing 310 and heat exchanger 200 together, and can fix a position sterilizing equipment 300's installation, be convenient for sterilizing equipment 300's installation is fixed, and simultaneously, joint portion 311 has certain height, through the pipeline joint with joint portion 311 and heat exchanger 200, joint portion 311 can prop up casing 310, make casing 310 and heat exchanger 200 spaced apart, so that sterilizing equipment 300's irradiation area is wider, and, support 312 can pass through bolted connection with the end plate of heat exchanger 200 and fix together, so that sterilizing equipment 300 can fix together with heat exchanger 200 more reliably, avoid sterilizing equipment 300 to take place the skew, guarantee sterilizing equipment 300's bactericidal effect.

Other configurations and operations of the air conditioner indoor unit 1 according to the embodiment of the present invention are known to those skilled in the art and will not be described in detail herein.

In the description of the present specification, references to the description of "a particular embodiment," "a particular example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. An indoor unit for an air conditioner, comprising:

the air conditioner comprises a machine shell, a fan and a controller, wherein the machine shell comprises a base and a shell, and the shell is detachably arranged on the base and is provided with an air inlet;

the heat exchanger is arranged in the shell and is arranged on the base;

sterilizing equipment, sterilizing equipment locates in the casing and be located the air intake with between the heat exchanger, sterilizing equipment includes the casing and locates illuminating part in the casing, the orientation of casing one side of heat exchanger is equipped with light trap and baffle, the light of illuminating part passes through the light trap jets out, the baffle is used for sheltering from illuminating part light to the direction propagation of shell.

2. An indoor unit of an air conditioner according to claim 1, wherein an included angle θ between a plane perpendicular to a central axis of the light transmission hole and the baffle is 60 ° to 150 °.

3. An indoor unit for an air conditioner according to claim 1, wherein the baffle is connected to a widthwise front side of the casing, and the baffle extends in a lengthwise direction of the casing.

4. An indoor unit of an air conditioner according to claim 1, wherein the casing is further provided with a ventilation channel, one end of the ventilation channel penetrates through one side of the casing facing the heat exchanger, and the other end of the ventilation channel penetrates through one side of the casing facing the air inlet.

5. An indoor unit of an air conditioner according to claim 4, wherein the number of the light-transmitting holes is plural, and the number of the light-emitting members is plural, corresponding to the number of the light-transmitting holes one by one;

the ventilation channel is a plurality of, and a plurality of light trap and a plurality of ventilation channel are along the length direction of casing is alternative and the interval sets up.

6. An indoor unit according to claim 5, wherein the plurality of ventilation passages include a first ventilation passage, a second ventilation passage and a third ventilation passage, the second ventilation passage is provided between the first ventilation passage and the third ventilation passage in a length direction of the casing, and a cross-sectional area of the second ventilation passage is larger than a cross-sectional area of the first ventilation passage and a cross-sectional area of the third ventilation passage.

7. An indoor unit for an air conditioner according to claim 4, wherein the casing includes:

the first shell is positioned on one side, facing the air inlet, of the light-emitting piece, and is provided with heat dissipation holes, and the heat dissipation holes correspond to the positions of the light-emitting piece and are used for dissipating heat of the light-emitting piece;

the second shell is positioned on one side, facing the heat exchanger, of the light-emitting piece, and the second shell is provided with the light-transmitting hole and the baffle;

wherein, the both ends of ventilation passageway run through respectively first casing with the second casing.

8. An indoor unit for an air conditioner according to claim 7, wherein one end of a side wall of the ventilation passage is connected to one of the first casing and the second casing, and the other end of the side wall of the ventilation passage abuts against the other of the first casing and the second casing.

9. An indoor unit according to any one of claims 1 to 8, wherein the distance between the light-transmitting hole and the heat exchanger is 5mm to 50mm.

10. The indoor unit of an air conditioner according to any one of claims 1 to 8, wherein a clamping portion and a bracket are respectively arranged at two ends of the casing, the clamping portion is arranged at one side of the casing facing the heat exchanger and is connected with the baffle, the clamping portion is provided with a clamping groove clamped with a pipeline of the heat exchanger, and the bracket is connected with an end plate of the heat exchanger.

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