CN217109773U - Indoor unit of air conditioner - Google Patents

Abstract

The utility model provides an indoor unit of air conditioner, include: a casing having an indoor air inlet formed therein; the volute is arranged in the machine shell and limits a first left air channel and a first right air channel which are arranged on the left and the right, and the volute comprises a volute bottom plate arranged at the bottom of the volute; the lower supporting plate is arranged on the rear side of the volute bottom plate; the indoor heat exchanger is fixedly arranged on the lower supporting plate and is positioned between the indoor air inlet and the volute; the middle partition plate is fixedly arranged on the lower supporting plate, the front end and the rear end of the middle partition plate are respectively connected with the volute and the indoor heat exchanger to divide the area between the volute and the heat exchanger into a second left air channel and a second right air channel which are arranged left and right, the second left air channel is communicated with the first left air channel, and the second right air channel is communicated with the first right air channel; the lower supporting plate supports the indoor heat exchanger and the middle partition plate, the lower supporting plate and the volute are separately arranged, the indoor heat exchanger and the middle partition plate can be conveniently installed and can be reserved and removed as required, the structural change diversity of the air conditioner is increased, the structure is simple, the design is convenient, and the cost is low.

Description

Indoor unit of air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, especially, relate to an indoor unit of air conditioner.

Background

At present, in a double-through-flow air conditioner indoor unit, an indoor heat exchanger is generally arranged on a special heat exchanger fixing frame so as to fix the indoor heat exchanger, however, the prior heat exchanger fixing frame has more complex structure and poorer stability, is generally an integrated piece and can not be disassembled, the working procedures of the indoor heat exchanger during the installation and the disassembly are more complicated, and when the later product is updated, because the heat exchanger fixing frame can not be disassembled, the structure of the heat exchanger fixing frame can not be changed, the requirement of a new product is difficult to adapt, the universality is poor, and because the heat exchanger fixing frame can not be disassembled, when one or more parts in the heat exchanger fixing frame meet the requirements of new products, the parts are difficult to disassemble for utilization, the new fixing frame needs to be redesigned to meet the requirements of the new products, the design work is increased, the waste of manpower and material resources is serious, and the production cost is high. Therefore, a new air conditioning indoor unit is proposed.

Disclosure of Invention

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. For this purpose,

according to an embodiment of the present disclosure, there is provided an air conditioner indoor unit including:

a casing having an indoor air inlet formed therein;

the volute is arranged in the machine shell and limits a first left air channel and a first right air channel which are arranged on the left and the right, and the volute comprises a volute bottom plate arranged at the bottom of the volute;

the lower supporting plate is arranged on the rear side of the volute bottom plate;

the indoor heat exchanger is fixedly arranged on the lower supporting plate and is positioned between the indoor air inlet and the volute;

the middle partition board is fixedly arranged on the lower supporting board, the front end and the rear end of the middle partition board are respectively connected with the volute and the indoor heat exchanger to divide the area between the volute and the heat exchanger into a second left air channel and a second right air channel which are arranged left and right, the second left air channel is communicated with the first left air channel, and the second right air channel is communicated with the first right air channel.

Set up the machine in the air conditioning including the bottom suspension fagging that is located spiral case bottom plate rear, indoor heat exchanger sets firmly on the bottom suspension fagging with median septum for the bottom suspension fagging supports indoor heat exchanger and median septum, and the bottom suspension fagging separately sets up with the spiral case, makes things convenient for the installation of indoor heat exchanger and median septum and can remain as required and get rid of, has increased the variety of machine structural change in the air conditioning, and simple structure design of being convenient for, and the cost is lower.

According to the embodiment of the disclosure, still including locating last backup pad in the casing, it locates to go up the backup pad the top of bottom suspension fagging, indoor heat exchanger and median septum are located the below of going up the backup pad just fixes on going up the backup pad, set up the backup pad and make indoor heat exchanger and median septum still be connected in last backup pad, can strengthen indoor heat exchanger and median septum's stability nature and fastness.

According to the embodiment of the disclosure, the volute further comprises a volute tongue connected above the volute bottom plate and a volute top plate connected above the volute tongue, the upper supporting plate is connected to the rear side of the volute top plate, the upper supporting plate and the volute top plate are arranged independently, the indoor heat exchanger and the middle partition plate can be conveniently installed and can be reserved and removed as required, and the diversity of structural changes of the indoor unit of the air conditioner is increased.

According to the embodiment of the disclosure, the lower support plate comprises a first lower support plate and a second lower support plate positioned between the first lower support plate and the volute, the indoor heat exchanger is fixedly arranged on the first lower support plate, and the middle partition plate is fixedly arranged on the second lower support plate, so that the first lower support plate and the second lower support plate perform a supporting function, and the lower support plate is simple in structure and convenient to design.

According to the embodiment of the disclosure, the upper surface of the first lower support plate is lower than the upper surface of the second lower support plate, so that the lower end of the indoor heat exchanger is lower than the lower end of the middle partition plate, and as much air entering the second left air duct and the second right air duct from the indoor air inlet passes through the indoor heat exchanger as possible.

According to the embodiment of the disclosure, the rear part of the upper supporting plate is upwards sunken to form the upper concave surface, the upper end of the indoor heat exchanger is connected with the upper concave surface, so that the upper end of the indoor heat exchanger is higher than the inlets of the second left air channel and the second right air channel, the air entering the second left air channel and the second right air channel passes through the indoor heat exchanger, and the air is ensured to exchange heat and then enter the second left air channel and the second right air channel.

According to the embodiment of the disclosure, the volute tongue comprises a left front volute tongue and a left rear volute tongue which are positioned on two sides of the first left air duct and a right rear volute tongue and a right front volute tongue which are positioned on two sides of the first right air duct, the left rear volute tongue and the right rear volute tongue are arranged oppositely, a first mounting surface is arranged on one side of the left rear volute tongue close to the right rear volute tongue and/or one side of the right rear volute tongue close to the left rear volute tongue, and the middle partition plate is connected to the first mounting surface, so that the middle partition plate is convenient to fix.

According to the embodiment of the disclosure, two corners of the front end of the middle clapboard are respectively connected with the first mounting surfaces on the left rear volute tongue and the right rear volute tongue, so that the middle clapboard is convenient to fix, and the two sides of the middle clapboard are both connected with the first mounting surfaces, so that the structure is stable.

According to the embodiment of the disclosure, the wind-guiding device further comprises a wind-guiding piece, the wind-guiding piece is connected to one side of the indoor heat exchanger and a third left wind channel and a third right wind channel which are arranged on the left and right sides of the volute, the third left wind channel is communicated with the first left wind channel, the third right wind channel is communicated with the first right wind channel, the wind-guiding piece is arranged, and front side currents of the indoor unit of the air conditioner in the first left wind channel and the first right wind channel can be guided.

According to the embodiment of the disclosure, the volute tongue comprises a left front volute tongue and a left rear volute tongue which are positioned on two sides of the first left air duct, and a right rear volute tongue and a right front volute tongue which are positioned on the left side and the right side of the first right air duct, the left rear volute tongue and the right rear volute tongue are arranged oppositely, the volute further comprises a rear volute tongue connecting plate which connects the front ends of the left rear volute tongue and the right rear volute tongue, a second mounting surface is arranged on the front side of the rear volute tongue connecting plate, and the flow guide piece is connected to the second mounting surface, so that the flow guide piece is convenient to fix.

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 description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a perspective view of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 2 is a perspective view of an air conditioning indoor unit according to an embodiment of the present disclosure from another perspective;

fig. 3 is a top sectional view of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 4 is a perspective view of a partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 5 is a top sectional view of a partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 6 is a perspective view of another partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 7 is a bottom sectional view of a partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 8 is a perspective view of another perspective view of a partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

FIG. 9 is an enlarged view of a portion of FIG. 8 at A;

fig. 10 is a top sectional view of another partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

FIG. 11 is a perspective view of a baffle according to an embodiment of the present disclosure;

FIG. 12 is a top cross-sectional view of a baffle according to an embodiment of the present disclosure;

FIG. 13 is a top cross-sectional view of a baffle and volute, according to an embodiment of the present disclosure;

fig. 14 is a top sectional view of another partial structure of an air conditioning indoor unit according to the embodiment of the present disclosure;

fig. 15 is a perspective view of another partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 16 is a schematic structural view of another partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure;

fig. 17 is a top sectional view of another partial structure of an air conditioning indoor unit according to an embodiment of the present disclosure.

In the above figures: a housing 1; an air intake panel 11; a front panel 12; an indoor air inlet 13; an indoor air outlet 14; a left air outlet 141; a right air outlet 142; a door body 15; a left air outlet duct 161; a right air outlet duct 162; an indoor heat exchanger 21; an indoor fan 22; a left indoor fan 221; a right indoor fan 222; a volute 4; a volute top plate 41; a top plate upper concave surface 411; a volute tongue 40; a front volute tongue 42; the left front volute tongue 421; the right anterior volute tongue 422; a rear volute tongue 43; a left posterior volute tongue 431; a right rear volute tongue 432; a volute floor 44; avoiding the notch 441; a lower concave surface 442; a rear volute tongue connecting plate 45; first mounting face 461; the second mounting surface 462; a plug-in post 47; a left air duct 501; a right air duct 502; a first left air duct 511; a first right air duct 512; a second left air duct 521; a second right air duct 522; a third left air duct 531; a third right air duct 532; a middle partition plate 6; an upper support plate 71; an upper concave surface 711; a lower support plate 72; the first lower support plate 721; a lower support plate indentation 7211; a second lower support plate 722; a flow guide member 8; a flow guide top plate 81; a deflector floor 82; a first left baffle 83; a second left baffle 84; a first right baffle 85; a second right baffle 86; a baffle attachment plate 87; a water pan 9; a water outlet hole 91; an insertion boss 92; and a plug hole 921.

Detailed Description

The present invention is specifically described below by way of exemplary embodiments. It should be understood, however, that elements, structures and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

The air conditioner performs a refrigeration cycle of the air conditioner by using a compressor, a condenser, an expansion valve, and an evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the air that has been conditioned and heat-exchanged.

The compressor compresses a refrigerant gas in a low-temperature and low-pressure state and discharges the refrigerant gas in a high-temperature and high-pressure state. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and heat is released to the surrounding environment through the condensation process.

The expansion valve expands the liquid-phase refrigerant in a high-temperature and high-pressure state condensed in the condenser into a low-pressure liquid-phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low-temperature and low-pressure state to the compressor. The evaporator can achieve a cooling effect by heat-exchanging with a material to be cooled using latent heat of evaporation of a refrigerant. The air conditioner can adjust the temperature of the indoor space throughout the cycle.

The air conditioner includes an air conditioner indoor unit and an air conditioner outdoor unit, the air conditioner outdoor unit is a part of a refrigeration cycle including a compressor and an outdoor heat exchanger, the air conditioner indoor unit includes an indoor heat exchanger, and an expansion valve may be provided in the air conditioner indoor unit or the air conditioner outdoor unit.

The indoor heat exchanger and the outdoor heat exchanger serve as a condenser or an evaporator. The air conditioner is used as a heater in a heating mode when the indoor heat exchanger is used as a condenser, and as a cooler in a cooling mode when the indoor heat exchanger is used as an evaporator.

The present invention provides an air-conditioning indoor unit, which will be described below with reference to fig. 1 to 17.

Example one

Referring to fig. 1 to 3, the indoor unit of an air conditioner includes a cabinet 1, an indoor heat exchanger 21, and an indoor fan 22.

The cabinet 1 may form an overall appearance of the indoor unit of the air conditioner. In the present example, the air conditioning indoor unit is generally cylindrical. The indoor unit of the air conditioner can be in the forms of a cylinder, a square column, an irregular column and the like.

Referring to fig. 1-2, the casing 1 includes an air intake panel 11 and a front panel 12, and the air intake panel 11 is connected to a rear side of the front panel 12, and both of them enclose an appearance of the indoor unit of the air conditioner.

An indoor air inlet 13 and an indoor air outlet 14 are formed on the housing 1, wherein the indoor air inlet 13 may be disposed on the air inlet panel, and the indoor air outlet may be disposed on the front panel 12.

The indoor heat exchanger 21 and the indoor fan 22 are arranged in the machine shell 1, indoor air enters the air-conditioning indoor unit from the indoor air inlet 13, heat exchange is carried out between the indoor heat exchanger and the indoor heat exchanger at the indoor heat exchanger, and the air after heat exchange is blown out of the air-conditioning indoor unit through the indoor fan and the indoor air outlet.

Wherein, indoor air intake 13 department can set up the grid, and indoor air outlet can be round hole or rectangular rectangle hole, and indoor air intake 13 and indoor air outlet 14's number can set up as required, and wherein indoor air intake 13 and indoor air outlet 14 have at least one.

Referring to fig. 1, a door 15 may be disposed at the indoor air outlet 14 to open or close the indoor air outlet, and the door 15 may also guide air at the indoor air outlet.

Referring to fig. 3 to 5, the indoor unit of an air conditioner further includes a scroll casing 4, and the scroll casing 4 is disposed in the cabinet 1. The scroll case 4 defines a first left air duct 511 and a first right air duct 512 which are located in the cabinet 1 and disposed left and right.

Referring to fig. 3, the indoor unit of the air conditioner may be a double cross-flow air conditioner in which the indoor fans have two. The specific indoor fan includes a left indoor fan 221 and a right indoor fan 222, wherein the left indoor fan 221 is located in the first left air duct 511, and the right indoor fan 222 is located in the first right air duct. The left indoor fan and the right indoor fan are cross-flow fans, so that the indoor unit of the air conditioner is a double cross-flow air conditioner.

Referring to fig. 5-6, the volute 4 includes a volute bottom plate 44 disposed at the bottom of the volute, a volute tongue 40 connected above the volute bottom plate, and a volute top plate 41 connected above the volute tongue. The volute tongue 40 comprises a front volute tongue 42 and a rear volute tongue 43, and the volute tongues can be vertically arranged.

Referring to fig. 10, the front volute tongue 42 includes a left front volute tongue 421 and a right front volute tongue 422 which are oppositely disposed, and the rear volute tongue 43 includes a left rear volute tongue 431 and a right rear volute tongue 432 which are oppositely disposed. The left rear volute tongue 431 and the right rear volute tongue 432 can be symmetrically arranged, and the left front volute tongue 421 and the right front volute tongue 422 can also be symmetrically arranged. The left front volute tongue 421 and the left rear volute tongue 431 are located on both sides of the first left air duct, and the right front volute tongue 422 and the right rear volute tongue 432 are located on both sides of the first left air duct. The left rear volute tongue 431 is connected with the right rear volute tongue 432, wherein the front ends of the left rear volute tongue 431 and the right rear volute tongue 432 can be connected.

The left front volute tongue 421, the left rear volute tongue 431, the volute top plate 41 and the volute bottom plate 44 define a first left air duct, and the right front volute tongue 422, the right rear volute tongue 432, the volute top plate 41 and the volute bottom plate 44 define a first right air duct.

The volute can be of an integral structure or a split structure, and all structures of the volute are connected with each other to form the volute.

Referring to fig. 4 to 6, the indoor heat exchanger 21 is fixedly installed on the volute bottom plate 41, and the indoor heat exchanger 21 is located between the indoor air inlet 13 and the volute tongue 40. The indoor heat exchanger can be C-shaped or U-shaped, wherein the indoor heat exchanger is arranged along the outline of the air inlet panel, the indoor heat exchanger can be arranged into two parts, the two parts of indoor heat exchanger form a complete indoor heat exchanger, and the two parts of indoor heat exchanger can be symmetrically arranged.

Referring to fig. 4 to 6, the indoor unit of an air conditioner further includes a middle partition plate 6 disposed between the indoor heat exchanger and the volute tongue, wherein front and rear ends of the middle partition plate are respectively connected to the volute tongue and the indoor heat exchanger to divide an area between the volute tongue and the indoor heat exchanger into a second left air duct 521 and a second right air duct 522 disposed left and right, the second left air duct 521 is communicated with the first left air duct 511, and the second right air duct 522 is communicated with the first right air duct 512.

The indoor heat exchanger and the middle partition plate are arranged and fixedly arranged on the volute bottom plate, so that the volute bottom plate serves as a supporting plate for supporting the indoor heat exchanger and the middle partition plate, the independent arrangement of the supporting plate is avoided, the design is convenient, the cost is reduced, and the supporting structure is stable.

Referring to fig. 6 and 7, the indoor unit of an air conditioner further includes an upper support plate 71 disposed in the casing, the upper support plate 71 is disposed above the bottom plate of the volute, and the indoor heat exchanger and the middle partition plate are disposed below the upper support plate and fixed on the upper support plate 71.

Set up the backup pad and make indoor heat exchanger and median septum still be connected in last backup pad, can strengthen indoor heat exchanger and median septum's stability nature and fastness.

Go up backup pad 71 and connect the rear side at spiral case roof 41, go up backup pad and spiral case roof and set up alone, make things convenient for the installation of indoor heat exchanger and well intermediate bottom board and can remain as required and get rid of, increased the variety of the indoor set structural change of air conditioner. Go up between backup pad and the spiral case roof and can seal the connection, avoid cold volume from going up the department of revealing between backup pad and the spiral case roof, influence the refrigerating output of machine in the air conditioning.

Referring to fig. 10, a first mounting surface 461 is provided on one side of the left rear volute tongue 431 close to the right rear volute tongue 432 and/or one side of the right rear volute tongue 432 close to the left rear volute tongue 431, and the middle partition plate is connected to the first mounting surface to facilitate fixing of the middle partition plate. Wherein the first mounting surface may be located at a rear portion of a side of the left rear volute tongue 431 adjacent to the right rear volute tongue 432 and/or a rear portion of a side of the right rear volute tongue 432 adjacent to the left rear volute tongue 431.

Two corners of the front end of the middle partition 6 may be connected to the first mounting surfaces on the left and right rear volute tongues 461. Make things convenient for the fixed of median septum, and all be connected with first installation face in the both sides of median septum, stable in structure.

The middle partition plate is connected with the first mounting surface in a sealing mode, so that air ducts on two sides of the middle partition plate are prevented from being communicated at the position, and air mixing is avoided.

Referring to fig. 11 to 13, the indoor unit of the air conditioner further includes a flow guide 8, the flow guide 8 is connected to a side of the volute away from the indoor heat exchanger, the flow guide defines a left air duct 531 and a right air duct 532 arranged left and right, the left air duct 531 is communicated with the first left air duct 511, and the right air duct 532 is communicated with the first right air duct 512. The air conditioner indoor unit is provided with a flow guide piece which can guide the front side of the air conditioner indoor unit in the first left air duct and the first right air duct to flow.

The volute further comprises a rear volute tongue connecting plate 45 which connects the front ends of the left rear volute tongue 431 and the right rear volute tongue 432, a second mounting surface 462 is arranged on the front side of the rear volute tongue connecting plate, and the flow guide piece is connected to the second mounting surface, so that the flow guide piece is convenient to fix.

The diversion piece is connected with the second mounting surface in a sealing mode, so that the air duct is prevented from being communicated at the position, and air mixing is avoided.

The flow guide piece comprises a flow guide top plate 81, a flow guide bottom plate 82, a first left flow guide plate 83, a second left flow guide plate 84, a first right flow guide plate 85 and a second right flow guide plate 86, a third left air duct 531 is limited by the flow guide top plate 81, the flow guide bottom plate 82, the first left flow guide plate 83 and the second left flow guide plate 84, and a third right air duct 532 is limited by the flow guide top plate 81, the flow guide bottom plate 82, the first right flow guide plate 85 and the second right flow guide plate 86. The first left guide plate and the second left guide plate are positioned on two sides of the third left air duct, and the first right guide plate and the second right guide plate are positioned on two sides of the third right air duct.

The first left guide plate 83 is connected with the left front volute tongue, the second right guide plate 86 is connected with the right front volute tongue, and the second left guide plate 84 and the first right guide plate 85 are connected with the second mounting surface 462.

The joints of the diversion pieces and the volute tongues are sealed, so that air mixing is avoided. Specifically, the joint of the first left baffle 83 and the left front volute tongue is sealed, the joint of the second right baffle and the right front volute tongue is sealed, and the joint of the second left baffle 84 and the first right baffle 85 and the second mounting surface 462 is sealed.

The guide plate also comprises a guide plate connecting plate 87 which connects the rear ends of the second left guide plate 84 and the first right guide plate 85, the guide plate connecting plate 87 is connected with the second mounting surface, the guide plate connecting plate is arranged to be conveniently connected with the second mounting surface on the rear volute tongue connecting plate, and the guide plate connecting plate is simple in structure and reliable in connection.

The indoor air outlet 14 includes a left air outlet 141 and a right air outlet 142 that are disposed left and right.

The diversion piece can be located the casing inboard, and the third left wind channel 531 that the diversion piece was injectd corresponds with the left air outlet, and the third right wind channel that the diversion piece was injectd corresponds with the right air outlet.

Referring to fig. 14, the casing may further define a left air outlet duct 161 located inside the left air outlet and a right air outlet duct 162 located inside the right air outlet, where the left air outlet duct 161 communicates the left air outlet with the third left air outlet duct, and the right air outlet duct 162 communicates the right air outlet with the third right air outlet duct.

Referring to fig. 6 to 9, the indoor unit of an air conditioner further includes a water pan 9 located below the volute to collect moisture condensed on the indoor heat exchanger, the middle partition plate, and the volute. The water receiving tray can be also positioned below the flow guide piece to collect the condensed water on the flow guide piece.

The water receiving tray 9 is provided with a water outlet 91 for discharging water on the water receiving tray 9.

Referring to fig. 9, the drip pan is fixedly connected to the volute. The upper surface of the water receiving tray is provided with an inserting boss 92, the inserting boss is provided with an inserting hole 921, the front end of the bottom of the volute is provided with an inserting column 47, and the inserting column is inserted into the inserting hole. The rear end of the bottom of the volute is arranged on the upper surface of the water receiving tray.

The rear portion that the water collector can be located to the apopore just is located the rear end of spiral case bottom, avoids the spiral case bottom plate with the water hole shutoff, is equipped with the breach 441 of dodging that is located apopore 91 top on the spiral case bottom plate, avoids the spiral case bottom plate with the apopore shutoff, influences out the water effect.

Referring to fig. 4 and 6, the rear portion of the volute bottom plate is recessed downward to form a lower concave surface 442, the indoor heat exchanger is disposed on the lower concave surface, so that the lower end of the indoor heat exchanger is lower than the inlets of the second left air duct and the second right air duct, and the air entering the second left air duct and the second right air duct passes through the indoor heat exchanger, thereby ensuring that the air enters the second left air duct and the second right air duct only after heat exchange.

The rear portion of the upper supporting plate is upwards sunken to form an upper concave surface 711, the upper end of the indoor heat exchanger is connected with the upper concave surface, the upper end of the indoor heat exchanger is higher than inlets of the second left air channel and the second right air channel, air entering the second left air channel and the second right air channel passes through the indoor heat exchanger, and the air is guaranteed to be subjected to heat exchange and then enters the second left air channel and the second right air channel.

The volute top plate is upwards sunken to form a top plate upper concave surface 411 close to the upper concave surface, and the top of the indoor heat exchanger is connected with the top plate upper concave surface.

The indoor unit of the air conditioner further comprises a fresh air component (not shown) for introducing outdoor fresh air into the room, the fresh air component is arranged below the water pan, and of course, the fresh air component can also be arranged above the upper supporting plate.

The fresh air component comprises a fan shell, a fresh air fan and a purification unit.

The fan shell is provided with an air suction opening and an air outlet. The inlet scoop is located the left and right sides of fan shell, and the upper end of fan shell is located to the air exit. An air inlet channel is enclosed between the air suction opening side of the fan shell and is communicated with a fresh air pipeline extending to the outside, so that fresh air can enter the air inlet channel through the fresh air pipeline.

The purification unit is arranged at the air inlet channel corresponding to the air suction opening and is used for filtering fresh air. The fresh air in the air inlet duct enters the air suction opening after passing through the purification unit.

The fresh air fan is arranged in the fan shell corresponding to the air suction opening and used for promoting fresh air to flow. The fresh air fan may be in the form of a twin centrifugal fan.

Under the forced convection action of the fresh air fan, outdoor fresh air enters the fan shell from the air suction opening after being filtered by the purification unit along the fresh air pipeline and is discharged from the air outlet.

According to this application embodiment's machine in air conditioning still includes the fresh air duct with the air exit intercommunication of new trend subassembly to make in the new trend flow direction fresh air duct.

A left air duct 501 and a right air duct 502 are formed in the indoor unit of the air conditioner, wherein the left air duct includes a first left air duct 511, a second left air duct 521 and a third left air duct 531, and the right air duct includes a first right air duct 512, a second right air duct 522 and a third right air duct 532.

The fresh air channel is communicated with the left air channel and the right air channel, so that fresh air introduced by the fresh air component can flow into the left air channel and the right air channel from the fresh air channel and is blown out from the left air outlet and the right air outlet.

When the air conditioning function and the fresh air function operate simultaneously, fresh air flowing to the left air duct and the right air duct from the fresh air duct and indoor air are mixed inside the left air outlet and the right air outlet and then blown out from the left air outlet and the right air outlet, so that the fresh air can be quickly diffused to each corner of the room by means of the outlet air flow of the indoor air, and the speed of improving the indoor air is increased; in addition, the fresh air is mixed with the indoor air, the temperature of the fresh air can be neutralized through the indoor air, and the discomfort of the temperature sense of a user caused by direct blowing of the fresh air when the indoor and outdoor temperature difference is large is avoided.

Example two

The present embodiment is described by using the structure of the first embodiment, and the difference between the present embodiment and the first embodiment is:

referring to fig. 15-17, the indoor unit of an air conditioner further includes a lower support plate 72 disposed in the casing, the lower support plate 72 is disposed on the water pan and located at the rear side of the bottom plate of the volute, and the upper support plate is disposed above the lower support plate.

The indoor heat exchanger is fixedly arranged on the lower supporting plate and is positioned between the indoor air inlet and the volute.

The middle clapboard 6 is also fixedly arranged on the lower supporting plate 72, and the front end and the rear end of the middle clapboard 6 are respectively connected with the volute and the indoor heat exchanger to divide the area between the volute and the heat exchanger into a second left air duct and a second right air duct which are arranged left and right.

Set up the machine in the air conditioning including the bottom suspension fagging that is located spiral case bottom plate rear, indoor heat exchanger sets firmly on the bottom suspension fagging with median septum for the bottom suspension fagging supports indoor heat exchanger and median septum, and the bottom suspension fagging separately sets up with the spiral case, makes things convenient for the installation of indoor heat exchanger and median septum and can remain as required and get rid of, has increased the variety of machine structural change in the air conditioning, and simple structure design of being convenient for, and is with low costs.

The lower support plate 72 includes a first lower support plate 721 and a second lower support plate 722 between the first lower support plate and the volute, the indoor heat exchanger is fixed on the first lower support plate, and the middle partition plate is fixed on the second lower support plate, so that the first lower support plate and the second lower support plate perform a support function, and the structure is simple and the design is convenient.

The upper surface of the first lower supporting plate is lower than the upper surface of the second lower supporting plate, so that the lower end of the indoor heat exchanger is lower than the lower end of the middle partition plate, and air entering the second left air duct and the second right air duct from the indoor air inlet passes through the indoor heat exchanger as much as possible.

The upper surface of the water receiving tray is provided with an inserting boss 92, the inserting boss is provided with an inserting hole 921, the bottom of the volute is provided with an inserting column 47, and the inserting column is inserted into the inserting hole.

The rear portion that the water collector can be located to the apopore and the rear end that is located first backup pad 721, in order to avoid the spiral case bottom plate with the water hole shutoff, be equipped with the bottom suspension fagging breach 7211 that is located apopore 91 top in the first backup pad, avoid first backup pad with the apopore shutoff, influence the play water effect.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely 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, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are 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 one or more of that feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

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

a casing having an indoor air inlet formed therein;

the volute is arranged in the machine shell and limits a first left air channel and a first right air channel which are arranged on the left and the right, and the volute comprises a volute bottom plate arranged at the bottom of the volute;

the lower supporting plate is arranged on the rear side of the volute bottom plate;

the indoor heat exchanger is fixedly arranged on the lower supporting plate and is positioned between the indoor air inlet and the volute;

the middle partition board is fixedly arranged on the lower supporting board, the front end and the rear end of the middle partition board are respectively connected with the volute and the indoor heat exchanger to divide the area between the volute and the heat exchanger into a second left air channel and a second right air channel which are arranged left and right, the second left air channel is communicated with the first left air channel, and the second right air channel is communicated with the first right air channel.

2. An indoor unit of an air conditioner according to claim 1, further comprising an upper support plate provided in the casing, wherein the upper support plate is provided above the lower support plate, and the indoor heat exchanger and the middle partition plate are provided below the upper support plate and fixed to the upper support plate.

3. The indoor unit of claim 2, wherein the scroll casing further comprises a scroll tongue connected above the scroll casing bottom plate and a scroll casing top plate connected above the scroll tongue, and the upper support plate is connected to a rear side of the scroll casing top plate.

4. An indoor unit of an air conditioner according to claim 1, 2 or 3, wherein the lower support plate includes a first lower support plate and a second lower support plate located between the first lower support plate and the scroll casing, the indoor heat exchanger is fixedly provided on the first lower support plate, and the intermediate partition plate is fixedly provided on the second lower support plate.

5. An indoor unit of an air conditioner according to claim 4, wherein an upper surface of the first lower support plate is lower than an upper surface of the second lower support plate.

6. An indoor unit of an air conditioner according to claim 2 or 3, wherein the rear portion of the upper support plate is recessed upward to form an upper concave surface, and the upper end of the indoor heat exchanger is connected to the upper concave surface.

7. The indoor unit of an air conditioner as claimed in claim 3, wherein the volute tongues comprise a left front volute tongue and a left rear volute tongue which are positioned at two sides of the first left air duct and a right rear volute tongue and a right front volute tongue which are positioned at two sides of the first right air duct, the left rear volute tongue and the right rear volute tongue are oppositely arranged, a first mounting surface is arranged at one side of the left rear volute tongue close to the right rear volute tongue and/or at one side of the right rear volute tongue close to the left rear volute tongue, and the middle partition plate is connected to the first mounting surface.

8. An indoor unit of an air conditioner according to claim 7, wherein two corners of a front end of the middle partition plate are connected to the first mounting surfaces of the left and right rear volute tongues, respectively.

9. An indoor unit of an air conditioner according to claim 3, further comprising a flow guide member connected to a side of the scroll casing away from the indoor heat exchanger and defining a third left air duct and a third right air duct disposed left and right, the third left air duct communicating with the first left air duct, and the third right air duct communicating with the first right air duct.

10. The indoor unit of an air conditioner according to claim 9, wherein the volute tongue includes a left front volute tongue and a left rear volute tongue located at both sides of the first left air duct and a right rear volute tongue located at both sides of the first right air duct, the left rear volute tongue and the right rear volute tongue are disposed opposite to each other, the volute further includes a rear volute tongue connecting plate connecting front ends of the left rear volute tongue and the right rear volute tongue, a second mounting surface is provided at a front side of the rear volute tongue connecting plate, and the flow guide member is connected to the second mounting surface.

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