CN116972447A - Indoor unit of air conditioner - Google Patents

Abstract

The invention provides an air conditioner indoor unit which comprises a heat exchanger, a heat exchange air duct, a first air outlet, one or two bypass air ducts, one or two air outlet cavities and one or two second air outlets. The outlet of the heat exchange air duct is a first air outlet. The heat exchanger is arranged in the heat exchange air duct. Each bypass air channel is arranged on one lateral side of the heat exchange air channel, and each bypass air channel is communicated with the heat exchange air channel so as to receive air flow in the heat exchange air channel after heat exchange with the heat exchanger. Each air outlet cavity is communicated with a bypass air duct. Each second air outlet is arranged on the cavity wall of one air outlet cavity and penetrates through the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit. The indoor unit of the air conditioner can avoid direct blowing of cool wind, increases the air outlet range and improves the comfort of users.

Description

Indoor unit of air conditioner

Technical Field

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

Background

The air conditioner improves the living standard of people, brings cool air for people in hot summer, and enables people to live at a proper temperature, so that the mood, sleep, work and study of the people are in a normal state. However, most of the existing indoor units of air conditioners are an air outlet, especially the indoor units of wall-mounted air conditioners, and air flows are blown out from the air outlet. The air flow is blown out from an air outlet, and the air supply mode is cool air direct blowing, and cool air is directly blown on a human body, so that people are uncomfortable and even ill. The air outlet range of an air outlet is also smaller, and the requirement of rapid cooling cannot be met.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide an indoor unit of an air conditioner that overcomes or at least partially solves the above problems, can avoid direct blowing of cool wind, and has an increased air outlet range and improved user comfort.

Specifically, the invention provides an air conditioner indoor unit, which comprises a heat exchanger and a heat exchange air duct, wherein an outlet of the heat exchange air duct is a first air outlet, and the heat exchanger is arranged in the heat exchange air duct and further comprises:

one or two bypass air channels, each of which is arranged on one lateral side of the heat exchange air channel and is communicated with the heat exchange air channel so as to receive the air flow in the heat exchange air channel after heat exchange with the heat exchanger;

one or two air outlet cavities, each of which is communicated with one bypass air duct;

and one or two second air outlets, wherein each second air outlet is arranged on the cavity wall of one air outlet cavity and penetrates through the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit.

Optionally, each bypass air duct is connected to an outlet end side wall of the heat exchange air duct; each air outlet cavity is arranged on one lateral side of the heat exchange air duct, and each air outlet cavity is communicated with the heat exchange air duct at the lower end of each air outlet cavity; in the transverse direction, each bypass air duct is arranged between the corresponding air outlet cavity and the corresponding heat exchange air duct; the air outlet cavity and the bypass air duct are two.

Optionally, the air conditioner indoor unit further comprises a shell, and the heat exchanger and the heat exchange air duct are positioned in the shell; the first air outlet and the second air outlet are positioned on the shell; the first air outlet is arranged at the bottom of the shell and is a strip-shaped air outlet extending along the transverse direction; each second air outlet is a strip-shaped air outlet extending along the up-down direction.

Optionally, the first air outlet supplies air forwards and/or forwards and downwards, and the second air outlet supplies air forwards and/or forwards and downwards; each second air outlet is arranged on one lateral side of the first air outlet, and the second air outlets are arranged on the front surface of the shell.

Optionally, an air deflector is disposed at the first air outlet, and the air deflector is configured to open and close the first air outlet, so that the first air outlet has an opening degree of more than a first percentage, the air conditioning indoor unit has a first air outlet mode, and the first air outlet has an opening degree of less than a second percentage, so that the air conditioning indoor unit has a second air outlet mode; the first percentage is greater than or equal to the second percentage; the ratio between the air output of the second air outlet and the air output of the first air outlet in the second air outlet mode is larger than the ratio between the air output of the second air outlet and the air output of the first air outlet in the first air outlet mode; at least in the second air outlet mode, under the action of the air deflector, the air outlet between the upper edge of the air deflector and the upper edge of the first air outlet is larger than the air outlet between the lower edge of the air deflector and the lower edge of the first air outlet.

Optionally, the air conditioner indoor unit further comprises a bypass air pipe, and the inner space of the bypass air pipe is the bypass air channel; the shell comprises one or two side boxes, each side box is positioned at one lateral side of the heat exchange air duct, the air outlet cavity is formed in each side box, and the second air outlet is arranged on the front surface of the corresponding side box;

the shell also comprises a framework, a housing and a front panel, wherein the housing is arranged on the framework, and the front panel is arranged on the housing; each side box is arranged on one lateral side of the framework and one lateral side of the housing, and the heat exchange air duct is positioned in a space defined by the housing and the framework.

Optionally, the heat exchange air duct comprises a first air duct section and a second air duct section for receiving the air flow of the first air duct section; the width of the second air channel section is larger than that of the first air channel section along the transverse direction; along the transverse direction, one side of the first air channel section is flush with one side of the second air channel section;

each bypass air duct is connected to one side of the second air duct section.

Optionally, a plurality of separation strips are arranged in each second air outlet at intervals along the up-down direction, so that each second air outlet is separated into a plurality of grid holes which are sequentially arranged along the up-down direction, and each grid hole extends along the transverse direction.

Optionally, a plurality of first dividing strips arranged at intervals along the up-down direction and a plurality of second dividing strips arranged at intervals along the transverse direction are arranged in each second air outlet, so that each second air outlet is divided into a plurality of grid holes, and each grid hole extends along the up-down direction.

Optionally, each side box comprises a box body with an opening and a box cover with a cover arranged at the opening of the box body;

part or all of the second air outlet is arranged on the box cover; the box cover and the front panel are integrally formed.

In the air conditioner indoor unit, air flow subjected to heat exchange with the heat exchanger in the heat exchange air duct is discharged out of the air conditioner indoor unit through the first air outlet and one or two second air outlets, so that the air conditioner indoor unit has at least two air outlet modes. Because of the existence of the bypass air duct and the air outlet cavity, the air supply of the second air outlet can realize no wind sense, thereby avoiding direct blowing of cool air and improving the comfort of users. The first air outlet and the second air outlet are used for simultaneously discharging air, so that the air outlet angle of the indoor unit of the air conditioner is increased, the air outlet range is also increased, and the refrigerating and heating speeds are improved.

Furthermore, in the indoor unit of the air conditioner, the first air outlet and the second air outlet share the heat exchange air duct, so that the heat exchanger can exchange heat uniformly in various air outlet modes, and the problem of local frosting of the heat exchanger is effectively avoided.

Further, in the indoor unit of the air conditioner, the air in the heat exchange air duct can be reasonably distributed through opening and closing the air guide plate of the first air outlet, so that corresponding air supply effects such as air supply without wind sense and the like are realized.

Furthermore, in the air conditioner indoor unit, the special structures and positions of the first air outlet and the second air outlet realize that the refrigerating wind blows flatly without blowing people, and improve the comfort of users.

Further, the air conditioning indoor unit of the present invention is preferably a wall-mounted air conditioning indoor unit.

The above, as well as additional objectives, advantages, and features of the present invention will become apparent to those skilled in the art from the following detailed description of a specific embodiment of the present invention when read in conjunction with the accompanying drawings.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions. It will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the accompanying drawings:

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

fig. 2 is a schematic cross-sectional view showing an air deflector of an indoor unit of an air conditioner according to an embodiment of the present invention being opened;

fig. 3 is a schematic cross-sectional view of an air deflector of an indoor unit of an air conditioner according to an embodiment of the present invention not fully closed;

FIG. 4 is a schematic block diagram of a side box according to one embodiment of the present invention;

fig. 5 is a schematic front view block diagram of an indoor unit of an air conditioner according to an embodiment of the present invention;

FIG. 6 is a schematic block diagram of an air outlet chamber and a splitter plate of an air conditioning indoor unit according to one embodiment of the invention;

fig. 7 is a schematic cross-sectional view of an air conditioner indoor unit according to one embodiment of the present invention;

fig. 8 is a schematic structural view of a skeleton of an air-conditioning indoor unit according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a swing blade apparatus of an indoor unit of an air conditioner according to an embodiment of the present invention;

fig. 10 is a schematic exploded view of an air conditioning indoor unit according to one embodiment of the present invention;

fig. 11 is a schematic exploded view of an indoor unit of an air conditioner according to another embodiment of the present invention.

Detailed Description

An air conditioning indoor unit according to an embodiment of the present invention is described below with reference to fig. 1 to 11. In the description of the present embodiment, it should be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature, i.e. one or more such features. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. When a feature "comprises or includes" a feature or some of its coverage, this indicates that other features are not excluded and may further include other features, unless expressly stated otherwise.

Unless specifically stated or limited otherwise, the terms "disposed," "mounted," "connected," "secured," "coupled," and the like are to be construed broadly as being either fixedly connected, detachably connected, or integrally formed, for example. Either mechanically or electrically. Either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. Those of ordinary skill in the art will understand the specific meaning of the terms described above in the present invention as the case may be.

Furthermore, in the description of the present embodiments, a first feature "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature therebetween. That is, in the description of the present embodiment, the first feature being "above", "over" and "upper" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature "under", "beneath", or "under" a second feature may be a first feature directly under or diagonally under the second feature, or simply indicate that the first feature is less level than the second feature.

In the description of the present embodiment, a description referring to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means 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 present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Fig. 1 is a schematic structural diagram of an indoor unit of an air conditioner according to an embodiment of the present invention, as shown in fig. 1, and referring to fig. 2 to 11, an indoor unit 100 of an air conditioner is provided, and includes a heat exchanger 101, a heat exchange air duct 102, a first air outlet 103, one or two bypass air ducts 104, one or two air outlet cavities 105, and one or two second air outlets 106. The heat exchanger 101 is disposed in the heat exchange air duct 102. The outlet of the heat exchange air duct 102 is a first air outlet 103. Each bypass air duct 104 is disposed on a lateral side of the heat exchange air duct 102, and each bypass air duct 104 is connected to the heat exchange air duct 102 to receive the air flow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101. Each air outlet cavity 105 is communicated with one bypass air duct 104. Each second air outlet 106 is disposed on a wall of one air outlet cavity 105 and penetrates to the outside of the air conditioning indoor unit 100 to supply air to the outside of the air conditioning indoor unit 100.

In the air conditioning indoor unit 100 of the embodiment of the present invention, the air flow after heat exchange with the heat exchanger 101 in the heat exchange air duct 102 is discharged out of the air conditioning indoor unit 100 through the first air outlet 103 and one or two second air outlets 106, so that the air conditioning indoor unit 100 has at least two air outlet modes, for example, an air outlet mode of supplying air only from the second air outlet 106, and due to the existence of the bypass air duct 104 and the air outlet cavity 105, the air supply of the second air outlet 106 can realize no air sensation, and the comfort of a user is improved. For example, the second air outlet 106 and the first air outlet 103 supply air at the same time, and the opening of the first air outlet 103 is smaller, so that another air supply without air feeling can be realized. For another example, the second air outlet 106 and the first air outlet 103 supply air simultaneously, and the opening of the first air outlet 103 is larger, so that rapid air supply is realized, and the air supply angle is large, so that the air supply range is large. Preferably, the number of the air outlet cavities 105 and the bypass air channels 104 is two, so that air supply without wind sense, large-angle air supply, rapid air supply and the like are further facilitated, and air flow diffusion and the like are facilitated.

In addition, the first air outlet 103 and the second air outlet 106 share the heat exchange air duct 102, so that the heat exchanger can exchange heat uniformly in various air outlet modes, and the problem of local frosting of the heat exchanger 101 is effectively avoided. Further, the air conditioning indoor unit 100 includes a fan that promotes airflow through the heat exchange duct 102, the first air outlet 103, and the second air outlet 106. For example, the fan may be a cross-flow fan. The volute 108 and the volute tongue 109 of the cross flow fan define part or all of the heat exchange air duct 102, and the cross flow wind wheel 107 of the cross flow fan is arranged in the heat exchange air duct 102.

In some embodiments of the present invention, each bypass duct 104 is connected to an outlet end sidewall of the heat exchange duct 102. That is, each bypass duct 104 communicates with the heat exchange duct 102 at a position of the heat exchange duct 102 adjacent to the first air outlet 103. Each air outlet cavity 105 is disposed on one lateral side of the heat exchange air duct 102, and each air outlet cavity 105 communicates with the heat exchange air duct 102 at its lower end. Preferably, in the transverse direction, each bypass duct 104 is arranged between the corresponding outlet chamber 105 and the heat exchange duct 102.

The heat exchange air duct 102 includes a first air duct section and a second air duct section for receiving an airflow of the first air duct section. The width of the second duct section is greater than the width of the first duct section in the transverse direction. Along the transverse direction, one side of the first air channel section is flush with one side of the second air channel section. Each bypass duct 104 is connected to one side of the second duct section. The outlet of the second air duct section is the first air outlet 103.

In some embodiments of the present invention, the air conditioning indoor unit 100 further includes a housing. The heat exchanger 101 and the heat exchanging air duct 102 are located in the housing. The first air outlet 103 and the second air outlet 106 are positioned on the shell, the first air outlet 103 supplies air forwards and/or forwards and downwards, and the second air outlet 106 supplies air forwards and/or forwards and downwards. Preferably, the first air outlet 103 is disposed at the bottom of the housing, and is a strip air outlet extending along the transverse direction. The second air outlet 106 is disposed on the front surface of the housing. Each second air outlet 106 is disposed at a lateral side of the first air outlet 103, and each second air outlet 106 is a strip air outlet extending along an up-down direction. Through the form of three positive air-out, be convenient for further not having wind sense air supply, wide-angle air supply, quick air supply etc. like this, also can realize that the refrigeration wind level blows and does not blow the people, improves user's travelling comfort.

In some embodiments of the present invention, as shown in fig. 1 to 3, an air deflector 110 is disposed at the first air outlet 103, and the air deflector 110 is configured to open and close the first air outlet 103, so that the first air outlet 103 has different openings, and thus the indoor unit 100 of the air conditioner has different air outlet modes. Specifically, the first air outlet 103 has an opening degree of more than a first percentage, so that the air conditioning indoor unit 100 has a first air outlet mode, and the first air outlet 103 has an opening degree of less than a second percentage, so that the air conditioning indoor unit 100 has a second air outlet mode. The first percentage is greater than or equal to the second percentage. For example, the first percentage is 20% to 40%, the second percentage is 20% or 5%, and preferably, both the first percentage and the second percentage are 20%. The ratio between the air output of the second air outlet 106 and the air output of the first air outlet 103 in the second air outlet mode is greater than the ratio between the air output of the second air outlet 106 and the air output of the first air outlet 103 in the first air outlet mode. The opening degree of the first air outlet 103 is adjusted, so that the ratio between the air outlet of the first air outlet 103 and the air outlet of the second air outlet 106 is adjusted, and the use requirements of different air supply modes are met.

At least in the second air outlet mode, under the action of the air deflector 110, the air outlet between the upper edge of the air deflector 110 and the upper edge of the first air outlet 103 is larger than the air outlet between the lower edge of the air deflector 110 and the lower edge of the first air outlet 103. By the arrangement, the second air outlet mode can supply air without wind sense, and the air-cooling air is blown flatly without people, so that the user comfort is improved. Moreover, the opening degree of the air deflector 110 is controlled, so that the air deflector 110 is positioned at a proper position, the condensation phenomenon can be prevented, for example, the second percentage is 10%, the condensation can be prevented, meanwhile, most of the air at the first air outlet 103 is blown out through the second air outlet 106 due to being blocked, the purpose that the air is cooled and blown out flatly is achieved, the air outlet range is enlarged, and the user comfort is improved. The ratio of the rotating speed of the cross flow fan in the second air outlet mode to the rotating speed of the cross flow fan in the first air outlet mode is 1.2-1.8. Preferably, the ratio is 1.5.

In some embodiments of the present invention, the housing includes one or two side boxes 111, each side box 111 is located at a lateral side of the heat exchange air duct 102, each side box 111 has an air outlet cavity 105 therein, and the second air outlet 106 is disposed on a front surface of the corresponding side box 111. The housing further includes a frame 114, a cover 115, the cover 115 being disposed on the frame 114, and a front panel 116, the front panel 116 being disposed on the cover 115. Each side case 111 is disposed on one lateral side of the frame 114 and the housing 115, and the heat exchange air duct 102 is located in a space defined by the housing 115 and the frame 114. The indoor unit 100 further includes a bypass duct, and the interior space of the bypass duct is a bypass duct 104. The air flow in the heat exchange air duct 102 after heat exchange with the heat exchanger 101 enters the air outlet cavity 105 in one side box 111 and is blown out through the second air outlet 106 on the front surface of the one side box 111.

As shown in fig. 4, each side case 111 may include a case 112 having an opening and a case cover 113 disposed at the opening of the case 112. Part or all of the second air outlet 106 is provided on the box cover 113. The cover 113 is integrally formed with the front panel 116, so that the structure is simple and the manufacturing is convenient. In some other embodiments, the side box 111 and the front panel 116 are two separate components that mate with each other by mounting.

In some embodiments of the present invention, as shown in fig. 6, a projection of the rear wall surface of the air outlet cavity 105 on a plane perpendicular to the transverse direction is a first circular arc, and a center of the first circular arc is located at a front side or a front lower side of the first circular arc. Preferably, the upper end of the rear wall surface of the air outlet cavity 105 is the highest point of the air outlet cavity 105, and the lower end is the lowest point of the air outlet cavity 105.

In some embodiments of the invention, the radius of the first arc is 450mm to 550mm and the corresponding central angle of the first arc is 30 degrees to 40 degrees. Preferably, the radius of the first circular arc is 500mm, and the corresponding central angle of the first circular arc is 35 degrees, so that the air flow in the air outlet cavity 105 can better flow to the second air outlet 106.

In some embodiments of the present invention, as shown in fig. 6, in order to supply air to the second air outlet 106 as reasonably and uniformly as possible, the indoor unit 100 further includes a plurality of air distribution plates 117. The plurality of air dividing plates 117 are sequentially arranged in the air outlet cavity 105 at intervals along the up-down direction, and the plurality of air dividing plates 117 divide the corresponding second air outlets 106 into a plurality of air outlet areas. The front end of each air dividing plate 117 is located above the front of the rear end, the front end of each air dividing plate 117 is located on the front wall surface of the air outlet cavity 105, and two sides of each air dividing plate 117 can be connected with two side wall surfaces of the air outlet cavity 105. The projection of the air dividing plate 117 on a plane perpendicular to the transverse direction is a second circular arc, the center of the second circular arc is positioned at the front side or the front lower side of the second circular arc, the diameter of the second circular arc is 150mm to 250mm, and the straight line distance between the front end and the rear end is 30mm to 50mm. Preferably, the diameter of the second circular arc is 200mm, and the linear distance between the front end and the rear end is 40mm. The plurality of air separation plates 117 are arranged in parallel, and the rear end of the upper air separation plate 117 is positioned above and behind the rear end of the lower air separation plate 117 in the two adjacent air separation plates 117.

In some embodiments of the invention, the profile of the cross section of each bypass duct 104 is the same as the profile of the corresponding side of the second duct section. The distance between the rear upper corner of the inlet end of each bypass duct 104 and the center of the volute tongue 109 is 22mm to 28mm. Preferably, the distance between the rear upper corner of the inlet end of each bypass duct 104 and the center of the volute tongue 109 is 25mm.

The inlet end of each bypass duct 104 is provided with a mounting plate perpendicular to the bypass duct 104. The air deflection 110 is rotatably mounted to the mounting plate. The air conditioning indoor unit 100 further includes an air deflector motor. The air deflector motor is mounted in a bypass duct 104 for driving the air deflector 110 to rotate. In some alternative embodiments of the invention, the profile of the cross section of each bypass duct 104 may also be non-uniform with the profile of the corresponding side of the second duct section, the ratio between the inlet area and the outlet area of each bypass duct 104 being 0.5 to 0.7. Preferably, the ratio is 0.6.

In some embodiments of the present invention, a plurality of flow guiding ribs are disposed on the lower surface of the heat exchange air duct 102 at intervals along the lateral direction, so as to guide the air flow in the heat exchange air duct 102 into the bypass air duct 104. The plurality of guide ribs are positioned in the first air channel section. One end of each flow guide rib is positioned on the boundary line of the first air duct section and the second air duct section, or the distance between one end of each flow guide rib, which is adjacent to the boundary line of the first air duct section and the second air duct section, and the boundary line of the first air duct section and the second air duct section is within 10mm.

Preferably, as shown in fig. 8, the plurality of flow-guiding ribs includes a first flow-guiding rib 118, a plurality of second flow-guiding ribs 119, and a plurality of third flow-guiding ribs 120. The first deflector rib 118 is located in the middle of the heat exchange air duct 102. The plurality of second guide ribs 119 are located at one side of the first guide rib 118, and a distance between one end, far away from the second air channel section, of each second guide rib 119 and the first guide rib 118 is smaller than a distance between the other end of the second guide rib 119 and the first guide rib 118. The plurality of third guide ribs 120 are located at the other side of the first guide rib 118, and a distance between one end, far away from the second air channel section, of each third guide rib 120 and the first guide rib 118 is smaller than a distance between the other end of the third guide rib 120 and the first guide rib 118. The second guide rib 119 and the third guide rib 120 are respectively used for guiding the airflow into the two bypass air channels 104.

In some embodiments of the present invention, as shown in fig. 9, the indoor unit 100 further includes a vane device 121, where the vane device 121 includes one or more vane groups sequentially disposed along a transverse direction, and each vane group includes a plurality of vane blades 122 disposed in the heat exchange duct 102 and sequentially disposed along the transverse direction. The plurality of vane blades 122 of each vane group may be connected by a vane link 123 to perform synchronous oscillation. The number of the swing blade sets is at least two, and the swing blade sets are used for respectively supplying air to the two bypass air channels 104. The swing blade group is arranged in the first air duct section.

The vane device 121 further includes one or more driving transmission assemblies, and each driving rotation assembly drives the vane 122 of one vane group to swing synchronously. In other embodiments of the present invention, the swing blade apparatus 121 includes one or more handhold devices 124, and the handhold devices 124 are used to move each swing blade link 123 to swing the corresponding swing blade 122.

In some embodiments of the present invention, as shown in fig. 7, a plurality of parallel rectifying ribs 125 are disposed at the inlet of the bypass air duct 104, the cross section of the rectifying ribs 125 is trapezoidal, and the larger side of the parallel two sides of the rectifying ribs 125 faces the outlet of the bypass air duct 104. The width of the larger side of the parallel sides of the rectifying rib 125 is 1.8mm to 2.2mm. The width of the smaller side of the parallel sides of the rectifying rib 125 is 1.5mm to 2mm. The distance between each two adjacent rectifying ribs 125 is 14mm to 16mm. Preferably, the width of the larger-area side of the parallel two sides of the rectifying rib 125 is 2mm. The width of the smaller side of the parallel sides of the rectifying rib 125 is 1.7mm. The distance between each two adjacent rectifying ribs 125 is 15mm. The flow straightening ribs 125 guide the air flow into the bypass air duct 104, and enable the air flow to be smoother and free of turbulence.

Volute tongue 109 includes a first section 126 that is positioned outside of cross-flow rotor 107 of the cross-flow fan, and a second section 127 that is coupled to first section 126 for directing airflow through cross-flow rotor 107. The rectifying ribs 125 are parallel to the second section 127 or the angle between the rectifying ribs 125 and the second section 127 is less than 5 °.

In some embodiments of the present invention, the ratio between the area of the first air outlet 103 and the total area of the two second air outlets 106 is 2 to 3. The ratio between the length and the width of the first air outlet 103 is 13 to 15. The ratio between the length and the width of the second air outlet 106 is 5 to 7. Preferably, the ratio between the area of the first air outlet 103 and the total area of the second air outlet 106 is 2.5. The ratio between the length and the width of the first air outlet 103 is 14. The ratio between the length and the width of the second air outlet 106 is 6.

In some embodiments of the present invention, the first air outlet 103 has a first edge and a second edge extending in a lateral direction, the first edge being forward or above or forward and above the second edge. The lower edge of the second air outlet 106 is at the same height as the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is higher than the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is located between the second edge and the first edge of the first air outlet 103, or the lower edge of the second air outlet 106 is at the same height as the second edge of the first air outlet 103.

In some embodiments of the present invention, the lower edge of the second air outlet 106 is at the same height as the front end of the upper edge of the inlet of the bypass air duct 104, and the highest of the upper edge of the inlet of the bypass air duct 104 is 8mm to 12mm higher than the lower edge of the second air outlet 106. Preferably 10mm.

In some embodiments of the present invention, the ratio between the lateral length of the first air outlet 103 and the lateral length of each air outlet cavity 105 is 18 to 22. Preferably, the ratio is 20. The width of each second air outlet 106 is equal to the lateral length of each air outlet cavity 105, or the width of each second air outlet 106 is more than 80% of the lateral length of each air outlet cavity 105.

In some embodiments of the present invention, as shown in fig. 1, a plurality of dividing strips 128 are disposed in each second air outlet 106 at intervals in the up-down direction, so as to divide each second air outlet 106 into a plurality of grid holes 129 disposed in sequence in the up-down direction, and each grid hole 129 extends in the transverse direction. The separation strip 128 makes the second air outlet 106 be separated into a plurality of grid holes 129, so that the blown air flow is more uniform, and the comfort of users is improved.

In some embodiments of the present invention, as shown in fig. 5, a plurality of first dividing strips 130 spaced apart in the up-down direction and a plurality of second dividing strips 131 spaced apart in the transverse direction are disposed in each second air outlet 106 to divide each second air outlet 106 into a plurality of grid holes 129, and each grid hole 129 extends in the up-down direction. The first and second dividing strips 130 and 131 divide the second air outlet 106 into the grid holes 129, so that the blown air flow is more uniform, and the comfort of the user is improved. The width of each grating hole 129 is 4mm to 6mm, and the width of each second air outlet 106 is 35mm to 40mm. Preferably, the width of each of the grill holes 129 is 5mm, and the width of each of the second air outlets 106 is 37mm.

In some embodiments of the present invention, the indoor unit 100 further includes an air induction device configured to induce the airflow in the heat exchange air duct 102 to enter the air outlet cavity 105 and flow out of the second air outlet 106. The induced air device comprises induced draft fans 132, an air outlet of each induced draft fan 132 is positioned in the air outlet cavity 105, the direction of the air outlet is vertical upwards, and the air outlet can be positioned behind the rear ends of the plurality of air dividing plates 117. Further, each induced draft fan 132 is disposed in one of the air outlet chambers 105, and an air inlet of each induced draft fan 132 is communicated with the heat exchange air duct 102 through the bypass air duct 104. Preferably, the induced draft fan 132 is a centrifugal fan.

In some embodiments of the present invention, as shown in fig. 10 and 11, the indoor unit 100 further includes a fan motor 133, an electric cabinet 134, a pipe pressing plate 135, a wall hanging plate 136, a dust filtering net 137, a motor pressing cover 140, a human-sensing module 141, another air guiding plate disposed at the first air outlet 103 and inside the air guiding plate 110, and the like. The fan motor 133 is used for driving the cross-flow fan to work. The blower motor 133 and the electric cabinet 134 are disposed at the rear side of the portion of the second air duct section beyond the first air duct section.

By now it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described herein in detail, many other variations or modifications of the invention consistent with the principles of the invention may be directly ascertained or inferred from the present disclosure without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. The utility model provides an indoor unit of air conditioner, includes heat exchanger, heat transfer wind channel, the export in heat transfer wind channel is first air outlet, the heat exchanger set up in the heat transfer wind channel, its characterized in that still includes:

one or two bypass air channels, each of which is arranged on one lateral side of the heat exchange air channel and is communicated with the heat exchange air channel so as to receive the air flow in the heat exchange air channel after heat exchange with the heat exchanger;

one or two air outlet cavities, each of which is communicated with one bypass air duct;

and one or two second air outlets, wherein each second air outlet is arranged on the cavity wall of one air outlet cavity and penetrates through the outer side of the air conditioner indoor unit so as to supply air to the outer side of the air conditioner indoor unit.

2. An indoor unit for an air conditioner according to claim 1, wherein,

each bypass air duct is connected to the side wall of the outlet end of the heat exchange air duct; each air outlet cavity is arranged on one lateral side of the heat exchange air duct, and each air outlet cavity is communicated with the heat exchange air duct at the lower end of each air outlet cavity; in the transverse direction, each bypass air duct is arranged between the corresponding air outlet cavity and the corresponding heat exchange air duct; the air outlet cavity and the bypass air duct are two.

3. The indoor unit of claim 1, further comprising a housing, wherein the heat exchanger and the heat exchange air duct are located within the housing; the first air outlet and the second air outlet are positioned on the shell; the first air outlet is arranged at the bottom of the shell and is a strip-shaped air outlet extending along the transverse direction; each second air outlet is a strip-shaped air outlet extending along the up-down direction.

4. An indoor unit for an air conditioner according to claim 3, wherein,

the first air outlet supplies air forwards and/or forwards and downwards, and the second air outlet supplies air forwards and/or forwards and downwards; each second air outlet is arranged on one lateral side of the first air outlet, and the second air outlets are arranged on the front surface of the shell.

5. An indoor unit for an air conditioner according to claim 1, wherein,

the air conditioner indoor unit comprises a first air outlet, a second air outlet and an air guide plate, wherein the air guide plate is arranged at the first air outlet and is configured to open and close the first air outlet, so that the first air outlet has an opening degree of more than a first percentage, the air conditioner indoor unit has a first air outlet mode, and the first air outlet has an opening degree of less than a second percentage, and the air conditioner indoor unit has a second air outlet mode; the first percentage is greater than or equal to the second percentage; the ratio between the air output of the second air outlet and the air output of the first air outlet in the second air outlet mode is larger than the ratio between the air output of the second air outlet and the air output of the first air outlet in the first air outlet mode; at least in the second air outlet mode, under the action of the air deflector, the air outlet between the upper edge of the air deflector and the upper edge of the first air outlet is larger than the air outlet between the lower edge of the air deflector and the lower edge of the first air outlet.

6. The indoor unit of claim 3, further comprising a bypass duct, wherein an interior space of the bypass duct is the bypass duct; the shell comprises one or two side boxes, each side box is positioned at one lateral side of the heat exchange air duct, the air outlet cavity is formed in each side box, and the second air outlet is arranged on the front surface of the corresponding side box;

the shell also comprises a framework, a housing and a front panel, wherein the housing is arranged on the framework, and the front panel is arranged on the housing; each side box is arranged on one lateral side of the framework and one lateral side of the housing, and the heat exchange air duct is positioned in a space defined by the housing and the framework.

7. An indoor unit for an air conditioner according to claim 2, wherein,

the heat exchange air duct comprises a first air duct section and a second air duct section for receiving air flow of the first air duct section; the width of the second air channel section is larger than that of the first air channel section along the transverse direction; along the transverse direction, one side of the first air channel section is flush with one side of the second air channel section;

each bypass air duct is connected to one side of the second air duct section.

8. The indoor unit of claim 4, wherein a plurality of dividing strips are disposed in each of the second air outlets at intervals in an up-down direction to divide each of the second air outlets into a plurality of grill holes disposed in sequence in the up-down direction, each of the grill holes extending in a transverse direction.

9. The indoor unit of claim 4, wherein the indoor unit of the air conditioner,

a plurality of first dividing strips which are arranged at intervals along the up-down direction and a plurality of second dividing strips which are arranged at intervals along the transverse direction are arranged in each second air outlet, so that each second air outlet is divided into a plurality of grid holes, and each grid hole extends along the up-down direction.

10. The indoor unit of claim 6, wherein the indoor unit of the air conditioner,

each side box comprises a box body with an opening and a box cover with a cover arranged at the opening of the box body;

part or all of the second air outlet is arranged on the box cover; the box cover and the front panel are integrally formed.