CN216620049U - Air conditioner indoor unit and air conditioner - Google Patents

Abstract

The utility model discloses an air conditioner indoor unit and an air conditioner, wherein the air conditioner indoor unit comprises a shell, a volute component, a heat exchanger, a water receiving tank and a fresh air module, wherein the shell comprises a chassis; the volute component is arranged in the shell and comprises a volute tongue; the heat exchanger is arranged in the shell and comprises a front heat exchange part; the water receiving groove is arranged on the chassis and is positioned below the front heat exchange part, the wall surface of the water receiving groove, the volute tongue and the chassis are encircled to form a bypass channel, the bypass channel is provided with an air passing opening, and the air passing opening is used for allowing air flow to the air inlet side of the front heat exchange part; the fresh air module is arranged in the shell and is provided with a fresh air duct which is communicated with the bypass channel. According to the technical scheme, the fresh air is guided to the air inlet side of the lower end of the front heat exchange part through the fresh air module, so that the heat exchange performance of the lower end of the front heat exchange part is improved.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The utility model relates to the technical field of air conditioners, in particular to an air conditioner indoor unit and an air conditioner.

Background

In the related art, a heat exchanger exchanges heat with air in an air conditioner, and the heat exchanger has a front heat exchanging portion, and since a lower end of the front heat exchanging portion is far away from a heat exchanging air inlet, when air flows in from the heat exchanging air inlet, a windward side of the lower end of the front heat exchanging portion is less in contact with the air flows, resulting in poor heat exchanging performance of the lower end of the front heat exchanging portion.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide an air conditioner indoor unit, aiming at guiding fresh air to the lower end of a front heat exchange part through a fresh air module so as to improve the heat exchange performance of the lower end of the front heat exchange part.

In order to achieve the purpose, the utility model provides an air-conditioning indoor unit, which comprises a shell, a volute component, a heat exchanger, a water receiving tank and a fresh air module, wherein the shell comprises a chassis; the volute component is arranged in the shell and comprises a volute tongue; the heat exchanger is arranged in the shell and comprises a front heat exchange part; the water receiving tank is arranged on the chassis and is positioned below the front heat exchange part, the wall surface of the water receiving tank, the volute tongue and the chassis are enclosed to form a bypass channel, the bypass channel is provided with an air passing opening, and the air passing opening is used for allowing air flow to the air inlet side of the lower end of the front heat exchange part; the fresh air module is installed in the shell and is provided with a fresh air duct, and the fresh air duct is communicated with the bypass channel.

Optionally, the bypass passage extends along a length of the housing.

Optionally, a movable door is arranged in the bypass channel, the movable door divides the bypass channel into a first channel and a second channel, the movable door can conduct or separate the first channel and the second channel, and the first channel is communicated with the fresh air duct; the volute component comprises a volute, the volute and the volute tongue are enclosed to form an air outlet duct, and the second channel is communicated with the air outlet duct.

Optionally, the first channel is located at the front side of the water receiving tank, and the second channel is located below the water receiving tank.

Optionally, the volute tongue is provided with a vent hole, and the vent hole is communicated with the second channel and the air outlet duct.

Optionally, the indoor unit of the air conditioner further comprises a cross-flow wind wheel, and the cross-flow wind wheel is arranged on the chassis; the fresh air module is positioned at one end of the cross-flow wind wheel along the length direction of the cross-flow wind wheel.

Optionally, the number of the vent holes is multiple, the vent holes are arranged at intervals along the length direction of the volute tongue, and the air passing area of the vent hole close to the fresh air module is larger than the air passing area of the vent hole far away from the fresh air module.

Optionally, machine in the air conditioning still includes the wind-guiding tripe, the wind-guiding tripe include the installation department and with the water conservancy diversion portion that the installation department is connected, the installation department is installed in the ventilation hole, the installation department is equipped with the intercommunication the second passageway with the wind-guiding passageway in air outlet duct.

Optionally, the indoor unit of the air conditioner further comprises a cross-flow wind wheel, and the cross-flow wind wheel is arranged on the chassis; the front heat exchange part comprises a first bending section and a second bending section, and the first bending section and the second bending section are sequentially connected from the water receiving tank along the peripheral side of the cross-flow wind wheel; the air passing opening is used for supplying air flow to the air inlet side at the lower end of the first bending section.

Optionally, the first bending section comprises a first subsection and a second subsection, the first subsection and the second subsection are sequentially connected from the water receiving tank along the peripheral side of the cross-flow wind wheel, and the air passing opening is used for supplying air to flow to the air inlet side of the first subsection.

Optionally, the air conditioning indoor unit further comprises an air guide louver, the air guide louver comprises an installation part and a flow guide part connected with the installation part, a mounting groove is formed in the chassis, and the installation part is installed in the mounting groove.

Optionally, a first valve is arranged at the air passing opening and used for opening or closing the air passing opening.

Optionally, a second valve is arranged between the fresh air duct and the bypass channel, and is used for communicating or separating the fresh air duct and the bypass channel.

Optionally, a wiring board is arranged at the bottom of the chassis, a plurality of line pressing structures are arranged on the wiring board at intervals, and line pressing grooves corresponding to the line pressing structures are arranged on the wiring board.

The utility model also provides an air conditioner which comprises the air conditioner indoor unit, wherein the air conditioner indoor unit comprises a shell, a volute component, a heat exchanger, a water receiving tank and a fresh air module, and the shell comprises a chassis; the volute component is arranged in the shell and comprises a volute tongue, the heat exchanger is arranged in the shell and comprises a front heat exchange part, the water receiving groove is arranged on the chassis and is located below the front heat exchange part, the wall surface of the water receiving groove, the volute tongue and the chassis are enclosed to form a bypass channel, the bypass channel is provided with an air passing opening, the air passing opening is used for allowing air flow to the air inlet side of the lower end of the front heat exchange part, the fresh air module is arranged in the shell and is provided with a fresh air channel, and the fresh air channel is communicated with the bypass channel.

The technical scheme of the utility model is that the novel air conditioner is provided with a shell, a volute component, a heat exchanger, a water receiving tank and a fresh air module, wherein the shell comprises a chassis; the volute component is arranged in the shell and comprises a volute tongue, the heat exchanger is arranged in the shell and comprises a front heat exchanging part; the water receiving tank is arranged on the chassis and is positioned below the front heat exchange part, the wall surface of the water receiving tank, the volute tongue and the chassis are enclosed to form a bypass channel, the bypass channel is provided with an air passing port, the air passing port is used for allowing air flow to the air inlet side of the front heat exchange part, the fresh air module is arranged in the shell and is provided with a fresh air channel, and the fresh air channel is communicated with the bypass channel; therefore, when the fresh air module runs, fresh air sucked by the fresh air module is guided to the air inlet side of the lower end of the front heat exchange part by the bypass channel, so that the air inlet amount of the lower end of the front heat exchange part is increased, and the heat exchange efficiency of the lower end of the front heat exchange part is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural view of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 2 is a front view of the air conditioning indoor unit of fig. 1;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 5 is a schematic structural view of the chassis of FIG. 1;

FIG. 6 is a cross-sectional view taken along line B-B of FIG. 4;

FIG. 7 is a schematic view of the structure of the chassis of FIG. 1 from another perspective;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 7;

FIG. 9 is a schematic view of the structure of the chassis of FIG. 1 from yet another perspective;

fig. 10 is a schematic structural view of an embodiment of an arrangement of air guide louvers;

FIG. 11 is an enlarged view at P of FIG. 10;

fig. 12 is a schematic structural view of another embodiment of an arrangement of air guide louvers;

FIG. 13 is a cross-sectional view of the chassis of FIG. 12;

fig. 14 is a schematic structural view of the air guide louver in fig. 10 or 13;

FIG. 15 is a schematic view of the tongue of FIG. 8;

fig. 16 is a front view of the tongue of fig. 15.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

In the related art, the heat exchanger 300 exchanges heat with air in the air conditioning indoor unit, the heat exchanger 300 has a front heat exchanging portion 301, and since the front heat exchanging portion 301 needs to be used for supporting the heat exchanger 300 and a part of the front heat exchanging portion 301 is shielded by a wall surface of the water receiving tank 400, a heat exchanging area of a windward side of the front heat exchanging portion 301 is small. Resulting in poor heat exchange performance of the front heat exchange portion 301.

In view of the above, referring to fig. 1 and fig. 2, the present invention provides an embodiment of an air conditioning indoor unit, which is adapted to solve the above technical problems.

Referring to fig. 3, 4 and 5, in an embodiment of the indoor unit of an air conditioner, the indoor unit of an air conditioner includes a casing 100, a cross-flow wind wheel 140, a volute assembly 200, a heat exchanger 300, a water receiving tank 400 and a fresh air module 500, wherein the casing 100 includes a base plate 120, the cross-flow wind wheel 140 is disposed on the base plate 120, the volute assembly 200 is disposed in the casing 100, the volute assembly 200 includes a volute tongue 220, and the volute tongue 220 extends along a length direction of the cross-flow wind wheel 140; the heat exchanger 300 is arranged in the shell 100, and the heat exchanger 300 comprises a front heat exchange part 301; the water receiving tank 400 is arranged on the chassis 120 and is positioned below the front heat exchange part 301, the wall surface of the water receiving tank 400, the volute tongue 220 and the chassis 120 are enclosed to form a bypass channel 104, the bypass channel 104 is provided with an air passing opening 105, and the air passing opening 105 is used for allowing airflow to flow to the air inlet side of the lower end of the front heat exchange part 301; the fresh air module 500 is installed in the housing 100, the fresh air module 500 has a fresh air duct 503, and the fresh air duct 503 is communicated with the bypass passage 104.

Specifically, the casing 100 is provided with a heat exchange air inlet 101, a heat exchange air outlet 102, and a heat exchange air duct 103 communicating the heat exchange air inlet 101 and the heat exchange air outlet 102. The indoor unit of the air conditioner further comprises a cross flow wind wheel 140, the cross flow wind wheel 140 is arranged in the heat exchange air duct 103, and the heat exchanger 300 is arranged on the periphery side of the cross flow wind wheel 140. The casing 100 comprises a cover plate 110 and a base plate 120 connected with the cover plate 110, wherein the cover plate 110 and the base plate 120 surround to form a heat exchange air duct 103. The volute assembly 200, the heat exchanger 300 and the water receiving tank 400 are all arranged in the heat exchange air duct 103 of the casing 100. The air outlet duct 201 is communicated with the heat exchange air duct 103 and the heat exchange air outlet 102. The heat exchanger 300 is positioned on the front side of the cross-flow wind wheel 140 and is a front heat exchange part 301, the air inlet side of the front heat exchange part 301 is the side of the front heat exchange part 301 back to the cross-flow wind wheel 140, the bypass channel 104 is formed by enclosing the wall surface of the water receiving tank 400, the volute tongue 220 and the chassis 120, the bypass channel 104 is further provided with an air passing opening 105, and the position of the air passing opening 105 is close to the lower end of the front heat exchange part 301 relative to the distance of the heat exchanger 300.

It can be understood that the fresh air module 500 is provided with a fresh air inlet 501 and a fresh air outlet, and a fresh air duct 503 communicating the fresh air inlet 501 and the fresh air outlet 502, the fresh air mode further includes a centrifugal wind wheel 510, and the centrifugal wind wheel 510 is arranged in the fresh air duct 503. When the fresh air module 500 operates, the centrifugal wind wheel 510 generates negative pressure in the fresh air duct 503, and fresh air enters the fresh air duct 503 from the fresh air inlet 501. Because the fresh air duct 503 is communicated with the air outlet duct 201, fresh air can continue to flow to the bypass channel 104 after flowing into the fresh air duct 503 and is finally discharged from the air passing opening 105, so that the fresh air can flow to the air inlet side of the heat exchanger 300 for heat exchange, the air inlet amount at the lower end of the front heat exchange part 301 is increased, and the heat exchange efficiency at the lower end of the front heat exchange part 301 is increased. In addition, the air discharged from the air passing opening 105 can not only improve the heat exchange efficiency of the lower end of the front heat exchange portion 301, but also improve the heat exchange efficiency of the entire front heat exchange portion 301.

The technical scheme of the utility model is that the novel air conditioner is provided with a shell 100, a volute component 200, a heat exchanger 300, a water receiving tank 400 and a fresh air module 500, wherein the shell 100 comprises a chassis 120; the volute assembly 200 is disposed in the housing 100, and the volute assembly 200 includes a volute tongue 220; the heat exchanger 300 is arranged in the shell 100, and the heat exchanger 300 comprises a front heat exchange part 301; the water receiving tank 400 is arranged on the base plate 120 and is positioned below the front heat exchanging part 301, the wall surface of the water receiving tank 400, the volute tongue 220 and the base plate 120 are enclosed to form a bypass channel 104, the bypass channel 104 is provided with an air passing opening 105, and the air passing opening 105 is used for allowing air flow to the air inlet side of the front heat exchanging part 301; the fresh air module 500 is installed in the housing 100, the fresh air module 500 has a fresh air duct 503, and the fresh air duct 503 is communicated with the bypass channel 104; thus, when the fresh air module 500 operates, the fresh air sucked by the fresh air module 500 is guided to the air inlet side of the lower end of the front heat exchange portion 301 by the bypass channel 104, so that the air inlet amount of the lower end of the front heat exchange portion 301 is increased, and the heat exchange efficiency of the front heat exchange portion 301 is further improved.

Referring to fig. 5, 6 and 7, in one embodiment, the bypass passage 104 extends along the length of the housing 100. Specifically, since the heat exchanger 300 extends along the length direction of the cross flow wind wheel 140, the front heat exchanging part 301 extends along the length direction of the cross flow wind wheel 140. Therefore, the bypass passage 104 extends in the longitudinal direction of the casing 100, that is, the bypass passage 104 extends in the longitudinal direction of the cross flow wind wheel 140. Secondly, the air passing opening 105 can extend along the length direction of the bypass channel 104, so that the air outlet efficiency can be improved; or, there are a plurality of air outlets 105, and the air outlets are arranged at intervals along the length direction of the bypass channel 104.

In another embodiment, a movable door 610 is arranged in the bypass passage 104, the movable door 610 divides the bypass passage 104 into a first passage 104a and a second passage 104b, and the movable door 610 can conduct or separate the first passage 104a and the second passage 104b, and the first passage 104a is communicated with the fresh air duct 503; the volute assembly 200 includes a volute 210, the volute 210 and a volute tongue 220 enclose to form an air outlet duct 201, and the second channel 104b is communicated with the air outlet duct 201.

Specifically, the movable door 610 may be configured as an electrically operated valve, and is mainly used for connecting or disconnecting the first passage 104a and the second passage 104 b. When the movable door 610 is in a closed state, the movable door 610 is used for blocking the first passage 104a and the second passage 104 b; when the movable door 610 is in the open state, the movable door 610 is used to conduct the first channel 104a and the second channel 104 b. When the movable door 610 is in the closed state and the fresh air module 500 operates, the fresh air sucked by the fresh air module 500 flows from the fresh air duct 503 to the first channel 104a and finally flows to the front heat exchanging portion 301 through the air opening 105, so that the heat exchange performance of the front heat exchanging portion 301 is increased. When the movable door 610 is in the open state, and when the fresh air module 500 operates, fresh air sucked by the fresh air module 500 flows to the first channel 104a from the fresh air duct 503, because the first channel 104a and the second channel 104b at this time are in the communicated state, the fresh air also flows to the second channel 104b, and finally, the fresh air can flow to the air outlet duct 201 from the second channel 104b as well as the air outlet 105, so that the air outlet direction can be adjusted.

On the basis of the above embodiment, the volute tongue 220 is provided with a vent hole 221, and the vent hole 221 communicates the second channel 104b and the air outlet duct 201. Specifically, in the embodiment, the volute tongue 220 is provided with a vent 221 facing the air outlet of the heat exchange air duct 103, so that fresh air can be rapidly exhausted from the vent 221 of the second air duct 104 b. Further, the first passage 104a is located on the front side of the water receiving tank 400, and the second passage 104b is located below the water receiving tank 400. By the arrangement, the space of the air-conditioning indoor unit is more compact, the internal space of the shell 100 is saved, and the air-conditioning indoor unit looks smaller and more attractive.

In a preferred embodiment, the indoor unit of the air conditioner further comprises a cross flow wind wheel 140, and the cross flow wind wheel 140 is arranged on the chassis 120; the fresh air module 500 is located at one end of the cross flow wind wheel 140 along the length direction thereof. Specifically, that is to say, the fresh air duct 503 of the fresh air module 500 may be communicated with any end of the end portion of the bypass channel 104, so as to prevent a part of the front heat exchanging portion 301 from being in contact with fresh air, thereby improving the air intake efficiency of the front heat exchanging portion 301.

It can be known through experiments that when the fresh air flows from the fresh air duct 503 to the bypass duct 104, the pressure at the end of the second duct 104b close to the fresh air duct 503 is low, and the pressure at the end of the second duct 104b far from the fresh air duct 503 is high, which results in uneven air outlet.

In order to solve the above technical problem, please refer to fig. 15 and fig. 16, in the base of the previous embodiment, a plurality of vent holes 221 are arranged at intervals along the length direction of the volute tongue 220, and an air passing area of the vent hole 221 close to the fresh air module 500 is larger than an air passing area of the vent hole 221 far from the fresh air module 500. Specifically, there are many shapes of the vent hole 221, and for example, the shape of the vent hole 221 may be a circle, a square, or the like. The air passing area of the vent 221 close to the fresh air module 500 is larger than the air passing area of the vent 221 far away from the fresh air module 500, the air output of one end, close to the fresh air module 500, of the second channel 104b is increased, the air output of one end, far away from the fresh air module 500, of the second channel 104b is reduced, accordingly, air outlet of fresh air from the vent 221 of the second channel 104b is more uniform, and the comfort degree of an indoor air conditioner to a user is improved.

Referring to fig. 10, 11 and 12, in another preferred embodiment, the air conditioning indoor unit further includes an air guiding louver 620, the air guiding louver 620 includes a mounting portion 621 and a guiding portion 622 connected to the mounting portion 621, the mounting portion 621 is mounted in the ventilation hole 221, and the mounting portion 621 is provided with an air guiding channel 621a communicating the second channel 104b and the air outlet duct 201. Specifically, the fresh air can flow to the heat exchange air outlet 102 through the air guide channel 621a, and plays a role in guiding the fresh air. The air guide louver 620 is further provided with a connecting portion 623 connected with the air guide portion 622, the number of the air guide louver 620 is multiple, and the multiple mounting portions 621 can be connected through a connecting rod 730. In addition, a motor may be further provided to control the connecting rod 730 to swing left and right, thereby changing the air outlet direction.

Referring to fig. 12, 13 and 14, in another preferred embodiment, the air conditioning indoor unit further includes an air guide louver 620, the air guide louver 620 includes a mounting portion 621 and a guide portion 622 connected to the mounting portion 621, a mounting groove 630 is formed on the chassis 120, and the mounting portion 621 is mounted in the mounting groove 630. When the fresh air blows to the air guide shutter 620, the guide part 622 has a guide effect on the fresh air. The air guide louver 620 is further provided with a connecting portion 623 connected with the air guide portion 622, the number of the air guide louver 620 is multiple, and the multiple mounting portions 621 can be connected through a connecting rod 730. In addition, a motor may be further provided to control the connecting rod 730 to swing left and right, thereby changing the air outlet direction.

Based on the above embodiment, the first valve 640 is disposed at the air passing opening 105 to open or close the air passing opening 105, so as to switch the flow direction of the fresh air. Further, a second valve 650 is disposed between the fresh air duct 503 and the bypass channel 104 for communicating or blocking the fresh air duct 503 and the bypass channel 104.

Based on the above embodiment, the fresh air module 500 further has an indoor air inlet 504. The air-conditioning indoor unit has a fresh air mode, wherein the fresh air mode comprises a first fresh air mode, a second fresh air mode, a third fresh air mode, a fourth fresh air mode, a fifth fresh air mode and a sixth fresh air mode.

When the air conditioning indoor unit is in the first fresh air mode, the centrifugal wind wheel 510 operates, the fresh air inlet 501, the second valve 650, the first valve 640 and the heat exchange air outlet 102 are in an open state, and the fresh air outlet 502, the indoor air inlet 504, the movable door 610, the heat exchange air inlet 101 and the cross flow wind wheel 140 are in a closed or stop working state. Fresh air enters from a fresh air inlet 501, flows to the first channel 104a through a fresh air duct 503, flows to the front heat exchanging part 301 from the air inlet 105, and finally flows to the indoor from the air outlet.

When the indoor unit of the air conditioner is in the second fresh air mode, the centrifugal wind wheel 510 and the cross flow wind wheel 140 operate, the fresh air inlet 501, the second valve 650, the first valve 640, the heat exchange air inlet 101 and the heat exchange air outlet 102 are in an open state, and the fresh air outlet 502, the indoor air inlet 504 and the movable door 610 are in a closed state. Fresh air enters from a fresh air inlet 501, flows to the first channel 104a through a fresh air duct 503, then flows to the front heat exchanging part 301 from the air passing opening 105, and indoor air enters from the heat exchanging air inlet 101 and flows to the heat exchanging air duct 103, so that the fresh air and the indoor air are merged and then discharged from the heat exchanging air outlet 102.

When the air conditioning indoor unit is in the third fresh air mode, the centrifugal wind wheel 510 operates, the fresh air inlet 501, the second valve 650, the heat exchange air outlet 102 and the movable door 610 are in an open state, and the fresh air outlet 502, the indoor air inlet 504, the heat exchange air inlet 101, the first valve 640 and the cross flow wind wheel 140 are in a closed or stop working state. Fresh air enters from the fresh air inlet 501, flows to the first channel 104a through the fresh air duct 503, then flows to the second channel 104b from the first channel 104a, and finally flows to the heat exchange air outlet 102 from the air vent 221 of the second channel 104b, so as to flow to the indoor.

When the air conditioning indoor unit is in the fourth fresh air mode, the centrifugal wind wheel 510 and the cross-flow wind wheel 140 operate, the fresh air inlet 501, the second valve 650, the heat exchange air outlet 102, the movable door 610 and the heat exchange air inlet 101 are in an open state, and the fresh air outlet 502, the indoor air inlet 504 and the first valve 640 are in a closed state. Fresh air enters from a fresh air inlet 501, flows to the first channel 104a through a fresh air duct 503, flows to the second channel 104b from the first channel 104a, and finally flows to the air outlet duct 201 from the vent hole 221 of the second channel 104b, indoor air enters from the heat exchange air inlet 101 and flows to the air outlet duct 201, and the fresh air and the indoor air are mixed and then discharged from the heat exchange air outlet 102.

When the indoor unit of the air conditioner is in the fifth fresh air mode, the centrifugal wind wheel 510 runs, the fresh air inlet 501, the second valve 650, the heat exchange air outlet 102, the movable door 610, the first valve 640 and the second valve 650 are in an open state, and the fresh air outlet, the indoor air inlet 504, the heat exchange air inlet 101 and the cross flow wind wheel 140 are in a closed or stop working state. Fresh air enters the bypass channel 104 from the fresh air inlet 501, then flows to the air outlet channel 201 from the air inlet 105 and the air vent 221 respectively, and finally flows to the indoor from the heat exchange air outlet 102.

When the indoor unit of the air conditioner is in the sixth fresh air mode, the centrifugal wind wheel 510 and the cross flow wind wheel 140 operate, the fresh air inlet 501, the second valve 650, the heat exchange air outlet 102, the movable door 610, the first valve 640, the second valve 650 and the heat exchange air inlet 101 are in an open state, and the fresh air outlet and the indoor air inlet 504 are in a closed state. Fresh air enters the bypass channel 104 from the fresh air inlet 501, then flows to the air outlet channel 201 from the air passing opening 105 and the air vent 221 respectively, and indoor air enters the air outlet channel 201 from the heat exchange air inlet 101, so that all air flows are merged and finally flow to the indoor from the heat exchange air outlet 102.

The indoor unit of the air conditioner is provided with a purification module at the fresh air duct 503 and further has an indoor purification mode, wherein the indoor purification mode comprises a first purification mode, a second purification mode, a third purification mode, a fourth purification mode, a fifth purification mode and a sixth purification mode.

When the air conditioning indoor unit is in the first purification mode, the centrifugal wind wheel 510 operates, the indoor air inlet 504, the second valve 650, the first valve 640 and the heat exchange air outlet 102 are in an open state, and the fresh air inlet 501, the fresh air outlet, the heat exchange air inlet 101, the movable door 610 and the cross-flow wind wheel 140 are in a closed or stop working state. Indoor air enters from the indoor air inlet 504, is purified by the purification module and then enters from the fresh air duct 503 into the first passage 104a, then flows from the air passing opening 105 to the front heat exchanging portion 301, and finally is discharged from the heat exchanging air outlet 102.

When the air conditioning indoor unit is in the second purification mode, the centrifugal wind wheel 510 and the cross-flow wind wheel 140 operate, the indoor air inlet 504, the second valve 650, the first valve 640, the heat exchange air outlet 102 and the heat exchange air inlet 101 are in an open state, and the fresh air inlet 501, the fresh air outlet and the movable door 610 are in a closed state. Indoor air enters from the indoor air inlet 504, is purified by the purification module and then enters the first channel 104a from the fresh air duct 503, then flows to the front heat exchanging portion 301 from the air passing opening 105, and another part of indoor air enters from the heat exchanging air inlet 101 into the heat exchanging air duct 103, so that the two air flows are merged and finally discharged to the indoor from the heat exchanging air outlet 102.

When the air conditioning indoor unit is in the third purification mode, the centrifugal wind wheel 510 operates, the indoor air inlet 504, the second valve 650, the movable door 610 and the heat exchange air outlet 102 are in an open state, and the fresh air inlet 501, the fresh air outlet, the heat exchange air inlet 101, the first valve 640 and the cross-flow wind wheel 140 are in a closed or stop working state. Indoor air enters from the indoor air inlet 504, then enters from the fresh air duct 503 into the first channel 104a after being purified by the purification module, then flows from the first channel 104a to the second channel 104b, and finally flows from the vent hole 221 to the heat exchange air outlet 102, so as to be discharged from the heat exchange air outlet 102 to the indoor.

When the indoor unit of the air conditioner is in the fourth purification mode, the centrifugal wind wheel 510 and the cross flow wind wheel 140 operate, the indoor air inlet 504, the second valve 650, the movable door 610, the heat exchange air outlet 102 and the heat exchange air inlet 101 are in an open state, and the fresh air inlet 501, the fresh air outlet and the first valve 640 are in a closed state. Indoor air enters from the indoor air inlet 504, is purified by the purification module and then enters from the fresh air duct 503 into the first channel 104a, then flows from the first channel 104a to the second channel 104b, and finally flows from the vent hole 221 to the air outlet duct 201, and another part of indoor air flows from the heat exchange air inlet 101 to the air outlet duct 201, so that the two air flows are merged and then discharged from the heat exchange air outlet 102 to the indoor.

When the indoor unit of the air conditioner is in the fifth purification mode, the centrifugal wind wheel 510 is operated, and the indoor air inlet 504, the second valve 650, the movable door 610 and the first valve 640 are arranged. The heat exchange air outlet 102 is in an open state, and the fresh air inlet 501, the fresh air outlet, the heat exchange air inlet 101 and the cross flow wind wheel 140 are in a closed or stop working state. Indoor air enters from the indoor air inlet 504, is purified by the purification module and then enters the bypass channel 104 from the fresh air duct 503, and then flows from the air inlet 105 and the vent hole 221 to the air outlet duct 201, and finally flows from the heat exchange air outlet 102 to the indoor.

When the air conditioning indoor unit is in the sixth purification mode, the centrifugal wind wheel 510 and the cross-flow wind wheel 140 operate, the indoor air inlet 504, the second valve 650, the movable door 610, the first valve 640, the heat exchange air outlet 102 and the heat exchange air inlet 101 are in an open state, and the fresh air inlet 501 and the fresh air outlet are in a closed state. Indoor air enters from the indoor air inlet 504, is purified by the purification module and then enters into the bypass channel 104 from the fresh air duct 503, then flows to the air outlet duct 201 from the air passing opening 105 and the vent hole 221, and another part of indoor air flows to the air outlet duct 201 from the heat exchange air inlet 101, so that a plurality of air flows are merged to flow into the room from the heat exchange air outlet 102.

It can be understood that, when centrifugal wind wheel 510 and heat exchange wind wheel operate simultaneously, the new trend water conservancy diversion fuses to the air of heat exchange wind channel 103 and indoor set for the pressure in heat exchange wind channel 103 can be adjusted, and in addition, the temperature of new trend also can be adjusted, makes the air conditioning indoor set blow out the wind that the temperature is suitable.

Referring to fig. 8 and 9, in an embodiment, a wiring board 700 is disposed at the bottom of the chassis 120, a plurality of line pressing structures 720 are disposed on the wiring board 700 at intervals, and line pressing grooves 710 corresponding to the line pressing structures 720 are disposed on the wiring board 700. Specifically, the routing structure includes an extension portion 721 protruding in a direction far away from the routing board 700, and a line pressing portion 722 extending from the end of the extension portion 721 toward the line pressing groove 710.

In an embodiment, the indoor unit of the air conditioner further includes a cross flow wind wheel 140, and the cross flow wind wheel 140 is disposed on the chassis 120; the front heat exchanging part 301 comprises a first bending section 310 and a second bending section 320, and the first bending section 310 and the second bending section 320 are sequentially connected from the water receiving tank 400 along the peripheral side of the cross flow wind wheel 140; the air inlet 105 is used for supplying air to the air inlet side of the lower end of the first bending section 310. Specifically, the heat exchanger 300 includes a first bent section 310, a second bent section 320, and a third bent section 330, and the third bent section 330 is a rear heat exchanging part. The first bending section 310, the second bending section 320 and the third bending section 330 are connected in sequence from the water receiving tank 400 along the peripheral side of the cross flow wind wheel 140.

In an embodiment, the first bending section 310 includes a first sub-section 311 and a second sub-section 312, the first sub-section 311 and the second sub-section 312 are sequentially connected along the circumferential side of the cross-flow wind wheel 140 from the water receiving tank 400, and the air passing opening 105 is used for allowing the air to flow to the air inlet side of the first sub-section 311.

The utility model further provides an air conditioner which comprises the air conditioner indoor unit. The specific structure of the air conditioner indoor unit refers to the above embodiments, and since the air conditioner adopts all the technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (15)

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

a housing comprising a chassis;

the volute component is arranged in the shell and comprises a volute tongue;

the heat exchanger is arranged in the shell and comprises a front heat exchange part;

the water receiving tank is arranged on the chassis and is positioned below the front heat exchange part, the wall surface of the water receiving tank, the volute tongue and the chassis are enclosed to form a bypass channel, the bypass channel is provided with an air passing opening, and the air passing opening is used for allowing air flow to the air inlet side of the lower end of the front heat exchange part; and

the fresh air module is installed in the shell and provided with a fresh air duct, and the fresh air duct is communicated with the bypass channel.

2. The indoor unit of claim 1, wherein the bypass passage extends in a length direction of the casing.

3. The indoor unit of an air conditioner according to claim 1, wherein a movable door is provided in the bypass passage, the movable door divides the bypass passage into a first passage and a second passage, and the movable door can open or close the first passage and the second passage, and the first passage is communicated with the fresh air duct; the volute component comprises a volute, the volute and the volute tongue are enclosed to form an air outlet duct, and the second channel is communicated with the air outlet duct.

4. The indoor unit of claim 3, wherein the first passage is located at a front side of the water receiving tank, and the second passage is located below the water receiving tank.

5. The indoor unit of claim 3, wherein the volute tongue is provided with a vent hole, and the vent hole communicates the second channel and the outlet duct.

6. The indoor unit of claim 5, further comprising a cross-flow wind wheel provided on the base plate; the fresh air module is positioned at one end of the cross-flow wind wheel along the length direction of the cross-flow wind wheel.

7. The indoor unit of claim 6, wherein the number of the vent holes is plural, the plural vent holes are arranged at intervals along the length direction of the volute tongue, and an air passing area of the vent hole close to the fresh air module is larger than an air passing area of the vent hole far from the fresh air module.

8. The indoor unit of claim 5, further comprising a wind guide louver, wherein the wind guide louver comprises an installation portion and a flow guide portion connected to the installation portion, the installation portion is installed in the ventilation hole, and the installation portion is provided with a wind guide channel communicating the second channel with the wind outlet channel.

9. The indoor unit of any one of claims 1 to 8, further comprising a cross-flow wind wheel provided on the base plate; the front heat exchange part comprises a first bending section and a second bending section, and the first bending section and the second bending section are sequentially connected from the water receiving tank along the peripheral side of the cross-flow wind wheel; the air passing opening is used for supplying air flow to the air inlet side at the lower end of the first bending section.

10. The indoor unit of an air conditioner as claimed in claim 9, wherein the first bending section includes a first subsection and a second subsection, the first subsection and the second subsection are connected in sequence from the water receiving tank along the peripheral side of the cross-flow wind wheel, and the air passing opening is used for supplying air to the air inlet side of the first subsection.

11. The indoor unit of claim 1, further comprising a wind guide louver, wherein the wind guide louver comprises an installation part and a guide part connected to the installation part, the base plate is provided with a mounting groove, and the installation part is installed in the mounting groove.

12. The indoor unit of claim 1, wherein a first valve is provided at the air passing opening to open or close the air passing opening.

13. The indoor unit of claim 1, wherein a second valve is disposed between the fresh air duct and the bypass channel to connect or disconnect the fresh air duct and the bypass channel.

14. The indoor unit of an air conditioner as claimed in claim 1, wherein a wiring board is disposed at the bottom of the chassis, a plurality of line pressing structures are disposed at intervals on the wiring board, and line pressing grooves corresponding to the line pressing structures are disposed on the wiring board.

15. An air conditioner characterized by comprising an indoor unit of an air conditioner according to any one of claims 1 to 14.

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