CN210463252U

CN210463252U - Air conditioner indoor unit and air conditioner

Info

Publication number: CN210463252U
Application number: CN201921397211.8U
Authority: CN
Inventors: 游斌; 朱武云
Original assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Current assignee: Midea Group Co Ltd; GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2019-08-26
Filing date: 2019-08-26
Publication date: 2020-05-05
Anticipated expiration: 2029-08-26

Abstract

The utility model discloses a machine and air conditioner in air conditioning, machine includes in the air conditioning: casing, heat exchanger and two cross-flow wind wheels. The casing is provided with an air inlet and two air outlets, the two air outlets are arranged at intervals along a first direction, the first direction is perpendicular to the front-back direction, the air inlet is positioned between the two air outlets in the first direction, an air channel communicated with the air inlet and the air outlets is arranged in the casing, the heat exchanger is arranged in the air channel and is adjacent to the air inlet, the two cross-flow wind wheels are arranged in the air channel and are arranged at intervals along the first direction, the maximum outer diameter of each cross-flow wind wheel is D, the part of the air channel positioned at the upstream of the cross-flow wind wheels is an air inlet section, the inner wall of the air inlet section, which is opposite to the heat exchanger and far away from the air inlet, is an air inlet inner wall, the distance between the air inlet. According to the utility model discloses machine in air conditioning can guarantee heat transfer effect, noise reduction, increase air output.

Description

Air conditioner indoor unit and air conditioner

Technical Field

The utility model belongs to the technical field of air treatment equipment and specifically relates to a machine and air conditioner in air conditioning.

Background

An air conditioner, which is a common device for adjusting the indoor ambient temperature, can make a user stay at a suitable ambient temperature. However, the air conditioner in the related art has poor heat exchange effect and high working noise due to the limitation of the structure of the air conditioner, and the overall performance of the air conditioner is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide an indoor set of air conditioning, this indoor set of air conditioning's heat transfer effect is better, the noise is lower and the air output is great.

The utility model also provides an air conditioner of having above-mentioned machine in the air conditioning.

According to the utility model discloses machine in air conditioning of first aspect embodiment, include: the air conditioner comprises a shell, an air inlet and two air outlets are formed in the shell, the two air outlets are arranged at intervals along a first direction, the air inlet is positioned between the two air outlets in the first direction, an air duct communicated with the air inlet and the air outlets is formed in the shell, and the first direction is vertical to the front-back direction; the heat exchanger is arranged in the air duct and is adjacent to the air inlet; the cross-flow wind wheels are arranged in the air duct and are spaced in the first direction, the cross-flow wind wheels correspond to the air outlets respectively, the maximum outer diameter of each cross-flow wind wheel is D, the portion, located on the upstream of each cross-flow wind wheel, of the air duct is an air inlet section, the portion, located on the downstream of each cross-flow wind wheel, of the air duct is an air outlet section, the inner wall, opposite to the heat exchanger and far away from the air inlet, of the air inlet section is an air inlet inner wall, the distance between the air inlet inner wall and the heat exchanger is s, and the ratio range of s to D is 0.8-2.

According to the utility model discloses machine in air conditioning, through setting up two air outlets of arranging along the first direction interval and two through-flow wind wheels that correspond respectively with two air outlets, and make the ratio scope of distance s between air inlet inner wall and the heat exchanger and the biggest external diameter D of through-flow wind wheel set up between 0.8-2, can guarantee heat transfer effect, noise reduction, increase air output.

According to some embodiments of the invention, the first direction is a vertical direction.

According to some embodiments of the utility model, the extension of machine in the front and back direction of following of air conditioning just is on a parallel with on the cross-section of first direction, use two respectively the centre of rotation of through-flow wind wheel is the centre of a circle and uses R as the radius to make the reference circle, two the tangent line that corresponds that the most adjacent each other of reference circle is m, n respectively, m n the heat exchanger with inject main intake area between the inner wall in wind channel, main intake area constitutes a part of air inlet section, main intake area is in the ascending width in front and back direction s, the value scope of R is 0.6D-0.8D.

According to the utility model discloses a some embodiments, machine includes in the air conditioning: the volute assembly comprises a first volute and a second volute which are opposite from each other in the front-back direction and are arranged at intervals, the first volute is close to the air inlet, the second volute is far away from the air inlet, the first volute and the second volute define a part of the air duct, the cross-flow wind wheel is located in a space defined by the first volute and the second volute, a part of the inner wall of the second volute forms the inner wall of the air inlet, on a section of the indoor unit of the air conditioner, which extends in the front-back direction and is parallel to the first direction, the rotation centers of the two cross-flow wind wheels are respectively used as circle centers to form concentric circles, the nearest intersection points of the two concentric circles and the inner wall of the second volute are respectively K1 and K2, the distance between K1 and the K2 is L, and the ratio of the L to the D ranges from 2.5 to 4.5.

According to some embodiments of the utility model, be equipped with the orientation on the air inlet inner wall the convex reposition of redundant personnel piece of heat exchanger direction, the reposition of redundant personnel piece will the air inlet section falls into the edge two sub-air inlet sections, two that the first direction was arranged sub-air inlet section and two the cross-flow wind wheel corresponds respectively.

In some optional embodiments of the present invention, a distance between the end surface of the flow dividing member adjacent to the heat exchanger and the air inlet inner wall is H, and a ratio of H to D is greater than 0.4.

Optionally, the flow splitter is spaced apart from the heat exchanger.

In some optional embodiments of the present invention, the indoor unit of an air conditioner includes: the volute assembly comprises a first volute and a second volute which are opposite in front and back and are arranged at intervals, the first volute is close to the air inlet, the second volute is far away from the air inlet, the first volute and the second volute limit one part of the air duct, the cross-flow wind wheel is located in a space limited by the first volute and the second volute, one part of the inner wall of the second volute forms the inner wall of the air inlet, and the flow dividing piece and the second volute are integrally formed.

The utility model discloses a some optional embodiments, the air inlet inner wall is including being located the reposition of redundant personnel is in two sub air inlet inner walls of both sides on the first direction, each sub air inlet inner wall includes: a planar portion extending in the first direction and having a planar structure; the arc portion that is the arc and extends, the one end of arc portion with plane portion links to each other, the other end orientation of arc portion is neighbouring the direction of heat exchanger extends, just the other end of arc portion with the reposition of redundant personnel links to each other.

According to some embodiments of the invention, the thickness of the heat exchanger ranges from 20 to 60 mm.

According to some embodiments of the utility model, air inlet department is equipped with the air inlet panel, be formed with a plurality of fresh air inlets on the air inlet panel, the equivalent diameter scope of fresh air inlet is 3-40 mm.

According to the utility model discloses air conditioner of second aspect embodiment includes: an indoor air-conditioning unit according to an embodiment of the first aspect of the present invention; and the air conditioner outdoor unit is connected with the air conditioner indoor unit.

According to the utility model discloses air conditioner through setting up foretell indoor set of air conditioner, can guarantee heat transfer effect, noise reduction, increase air output.

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

Drawings

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

fig. 1 is a cross-sectional view of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 2 is a schematic view of a heat exchanger of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 3 is an exploded view of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 4 is a perspective view of an air intake panel of an indoor unit of an air conditioner according to some embodiments of the present invention;

fig. 5 is an enlarged view at a in fig. 4.

Reference numerals:

an indoor air-conditioning unit 100;

a housing 1; a chassis 11; a face frame 12; an air inlet 121; an air outlet 122;

an air inlet panel 2; an air inlet hole 21; a first buckle 22;

a first scroll casing 31; a second volute 32; an air intake inner wall 33; the sub-intake inner wall 331; a planar portion 3311; arcuate portions 3312; a flow splitter 34;

a cross flow wind wheel 41; a drive motor 42; a heat exchanger 5; an air deflector 6;

an air intake section 71; a sub air inlet section 711; a primary air intake area 712; and an air outlet section 72.

Detailed Description

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

An air conditioning indoor unit 100 according to an embodiment of the present invention is described below with reference to the accompanying drawings.

As shown in fig. 1 and 3 (the direction of the arrow in fig. 1 is the airflow direction), the indoor unit 100 of an air conditioner according to the embodiment of the present invention includes: the heat exchanger comprises a machine shell 1, a heat exchanger 5 and two cross-flow wind wheels 41.

Specifically, the casing 1 is formed with an air inlet 121 and two air outlets 122, and the casing 1 has an air duct communicating the air inlet 121 and the air outlets 122. The two air outlets 122 are spaced along a first direction (for example, the first direction is a vertical direction or a horizontal direction), for example, the two air outlets 12 may be respectively located at upper and lower ends of the housing 1. The air inlet 121 is located between the two air outlets 122 in the first direction, for example, when the first direction is an up-down direction, each air outlet 122 may extend in a left-right direction; for example, when the first direction is a left-right direction, each of the air outlets 122 may extend in a vertical direction.

The heat exchanger 5 is arranged in the air duct and adjacent to the air inlet 121, the two cross flow wind wheels 41 are arranged in the air duct and spaced apart from each other along the first direction, the two cross flow wind wheels 41 correspond to the two air outlets 122 respectively, and the two cross flow wind wheels 41 can share one heat exchanger 5. For example, when the first direction is the vertical direction, the upper cross flow vanes 41 drive the airflow to be blown out from the upper outlet 122, and the lower cross flow vanes 41 drive the airflow to be blown out from the lower outlet 122. For another example, when the first direction is the left-right direction, the cross flow rotor 41 located at the left end is used to drive the airflow to be blown out from the air outlet 122 at the left end, and the cross flow rotor 41 located at the right end is used to drive the airflow to be blown out from the air outlet 122 at the right end. The part of the air duct located at the upstream of the cross flow wind wheel 41 is an air inlet section 71, and the part of the air duct located at the downstream of the cross flow wind wheel 41 is an air outlet section 72.

When the first direction is the up-down direction, the rotation central axis of each cross flow wind wheel 41 may extend in the left-right direction, and the rotation central axis of each cross flow wind wheel 41 may extend substantially in the horizontal direction. Due to manufacturing and installation reasons, an included angle between the rotation central axis of the cross flow wind wheel 41 and the horizontal direction may have a certain deviation, and the fact that the rotation central axis of the cross flow wind wheel 41 extends substantially along the horizontal direction means that the included angle between the rotation central axis of the cross flow wind wheel 41 and the horizontal direction is within plus or minus 10 degrees. The driving motor 42 of each cross flow wind wheel 41 can be positioned at the left end of the cross flow wind wheel 41 or at the right end of the cross flow wind wheel 41. For example, the driving motors 42 of the two cross flow wind wheels 41 are both positioned at the left end of the cross flow wind wheel 41; or, the driving motors 42 of the two cross flow wind wheels 41 are both located at the right end of the cross flow wind wheel 41; or, the driving motors 42 of one of the cross flow wind wheels 41 are all located at the left end of the cross flow wind wheel 41, and the driving motors 42 of the other cross flow wind wheel 41 are all located at the right end of the cross flow wind wheel 41.

Alternatively, when the first direction is the up-down direction, the air outlet 122 located above faces forward and upward, and the air outlet section 72 located above may extend forward and forward in the direction from bottom to top; the air outlet 122 at the lower portion faces forward, and the air outlet section 72 at the upper portion may extend forward in a direction from the top to the bottom.

Alternatively, the air intake 121 may be formed on the front wall of the cabinet 1, with the heat exchanger 5 adjacent to the front wall of the cabinet 1; the air intake opening 121 may also be formed in the rear wall of the cabinet 1, with the heat exchanger 5 adjacent to the rear wall of the cabinet 1.

Therefore, when the air conditioner works, the two cross-flow wind wheels 41 can rotate uniformly, the driving airflow enters the air inlet section 71 from the air inlet 121 and exchanges heat with the heat exchanger 5, the airflow after heat exchange is divided into two paths after flowing through the air inlet section 71, and the two paths of airflow after heat exchange are blown out to the indoor through the corresponding air outlets 122 respectively through the corresponding air outlet sections 72, so that the air conditioner can have larger air output and can quickly adjust the indoor environment temperature.

Alternatively, the two cross-flow wind wheels 41 may be controlled independently from each other. When the air conditioner works, only one of the cross flow wind wheels 41 can work, and also two of the cross flow wind wheels 41 can work, and at the moment, the two air outlets 122 all output air.

In addition, compare with setting up single cross-flow wind wheel, the utility model discloses an indoor set of air conditioner 100 not only can increase the air output, can also make the radial dimension of cross-flow wind wheel 41 set up less, reduces indoor set of air conditioner 100 in the ascending thickness of front and back for indoor set of air conditioner 100 wholly can form to flat-plate on the whole, makes indoor set of air conditioner 100's installation use more nimble from this. For example, the air conditioning indoor unit 100 may be hung on a wall to be used as a wall-mounted air conditioning indoor unit, and since the thickness of the air conditioning indoor unit 100 is small, the position at which the air conditioning indoor unit 100 is hung may be made lower compared to a conventional wall-mounted air conditioning indoor unit, and thus, the heating performance may be further improved. For example, the air conditioning indoor unit 100 may be placed on the floor for use, or the air conditioning indoor unit 100 may be placed against a wall, so that when the air conditioning indoor unit 100 heats, hot air blown out by the air conditioning indoor unit 100 is blown to a position adjacent to the floor, and the heating performance can be further improved.

Optionally, a rotatable air deflector 6 may be disposed at each air outlet 122, and the opening and closing of the air outlet 122 is realized by the rotation of the air deflector 6, and the air outlet angle and the air outlet direction of the air outlet 122 may be adjusted. For example, in heating, the air deflector 6 of each air outlet 122 can guide the air downward, improve indoor temperature stratification, make the indoor temperature uniform, and improve comfort; during cooling, the air deflector 6 of each air outlet 122 can guide the wind upwards, so as to prevent discomfort caused by direct blowing of cold wind.

The largest outer diameter of the cross-flow wind wheel 41 is D, the inner wall of the air inlet section 71, which is opposite to the heat exchanger 5 and is far away from the air inlet 121, is an air inlet inner wall 33, the distance between the air inlet inner wall 33 and the heat exchanger 5 in the front-back direction is s, and the ratio range of s to D is 0.8-2. If s is smaller than 0.8D, the distance between the heat exchanger 5 and the air inlet inner wall 33 is too small, heat exchange is not facilitated, the heat exchange effect is poor, noise is high, and the air outlet quantity is reduced; if s is greater than 2D, although the heat exchange effect is good, the overall thickness of the air conditioner indoor unit 100 is too large, which is not beneficial to saving space. Therefore, the ratio of the distance s between the air inlet inner wall 33 and the heat exchanger 5 in the front-back direction to the maximum outer diameter D of the cross flow wind wheel 41 is set to be 0.8-2, so that the heat exchange effect can be improved, the noise can be reduced, and the air outlet quantity can be increased.

It should be noted that, the cross-flow wind wheel 41 generally includes blades and a center diaphragm, and when the outer circumferential diameter of the center diaphragm is larger than that of the blades, the maximum outer diameter D of the cross-flow wind wheel 41 is the outer circumferential diameter of the center diaphragm.

Optionally, the maximum outer diameter D of each cross-flow wind wheel 41 may range from 90 to 110mm, for example, D may range from 94 to 105 mm. If the maximum outer diameter D of the cross-flow wind wheel 41 is too small, heat exchange is not facilitated; if the maximum outer diameter D of the cross-flow wind wheel 41 is too large, the cross-flow wind wheel 41 is heavy, which causes high power and high cost, and is not beneficial to improving energy efficiency. Therefore, the maximum outer diameter D of the cross-flow wind wheel 41 is set to be 90-110mm, so that sufficient heat exchange between airflow and a heat exchanger is facilitated, the air outlet quantity can be ensured, and high energy efficiency is ensured.

The directions "up", "down", "front", "rear", "left" and "right" in the present invention are directions relative to the user using the indoor unit 100.

According to the utility model discloses machine 100 in air conditioning, through setting up two air outlets 122 of arranging along the first direction interval and two through-flow wind wheels 41 that correspond respectively with two air outlets 122, and make the ratio scope of distance s between air inlet inner wall 33 and the heat exchanger 5 and the biggest outside diameter D of through-flow wind wheel 41 set up between 0.8-2, can guarantee heat transfer effect, noise reduction, increase air output.

According to the utility model discloses a few embodiments, first direction can be upper and lower direction, and two air outlets are arranged along upper and lower direction interval this moment, and two air outlets can be located the upper and lower both ends of casing for example. Therefore, when the air conditioner works, the two cross-flow wind wheels 41 can rotate, air flow is driven to enter the air inlet section 71 from the air inlet 121 and exchange heat with the heat exchanger 5, the air flow after heat exchange is divided into an upper air flow and a lower air flow after flowing through the air inlet section 71, one air flow flows upwards and is blown out to the indoor through the air outlet section 72 and the air outlet 122 which are positioned above, the other air flow flows downwards and is blown out to the indoor through the air outlet section 72 and the air outlet 122 which are positioned below, and therefore the indoor environment temperature can be adjusted. For example, when rapid heating is required, the two cross flow wind wheels 41 can both work, the air output can be increased, the heating efficiency can be improved, the heating performance can be improved, additional electric auxiliary heat is not required, and the energy consumption can be saved. In addition, since the air outlet 122 includes two upper and lower portions, the heating performance is improved and the cooling performance is also considered.

When the air conditioner is in operation, only one of the cross flow wind wheels 41 can be operated, for example, when the air conditioner is in heating, only the cross flow wind wheel 41 located below can be operated, and at this time, the airflow is mainly blown out to the indoor from the air outlet 122 located below; when cooling, only the cross-flow wind wheel 41 located above can be operated, and the air flow is mainly blown out from the air outlet 122 located above into the room.

When the air conditioner works, the two cross flow wind wheels 41 can work, and the two air outlets 122 are used for exhausting air. During refrigeration, the rotating speed of the two cross flow wind wheels 41 can be controlled, so that the rotating speed of the cross flow wind wheel 41 positioned above is greater than that of the cross flow wind wheel 41 positioned below, the air outlet volume of the air outlet 122 positioned above is greater than that of the air outlet 122 positioned below, more cold air is discharged through the air outlet 122 positioned above, and the refrigeration performance can be further improved. Of course, during cooling, the air output of the air outlet 122 located above may be greater than the air output of the air outlet 122 located below, for example, the power of the cross flow wind wheel 41 located above may be greater than the power of the cross flow wind wheel 41 located below, or the air output area of the air outlet 122 located above may be greater than the air output area of the air outlet 122 located below.

According to some embodiments of the present invention, referring to fig. 1, on a cross section of the air conditioning indoor unit 100 extending in the front-rear direction and parallel to the first direction (for example, the cross section of the air conditioning indoor unit 100 extending in the front-rear direction and parallel to the first direction may be substantially perpendicular to the rotation central axis of the cross flow wind wheel 41), for example, when the first direction is the up-down direction, the cross section of the air conditioning indoor unit 100 extending in the front-rear direction and parallel to the first direction is a vertical cross section. The rotation centers of the two cross-flow wind wheels 41 are taken as circle centers, R is taken as a radius to be taken as a reference circle C1, and the tangents of the two reference circles C1, which are closest to each other, corresponding to the points are m and n respectively. For example, when the first direction is the vertical direction, a tangent line corresponding to the lowest point of the reference circle C1 corresponding to the cross-flow wind wheel 41 located above is m, and a tangent line corresponding to the highest point of the reference circle C1 corresponding to the cross-flow wind wheel 41 located below is n. A main air inlet area 712 is defined between the m, the n, the heat exchanger 5 and the inner wall of the air duct (the main air inlet area 712 can refer to a shaded area in fig. 1), the main air inlet area 712 forms a part of the air inlet section 71, the width of the main air inlet area 712 in the front-back direction is s, and the value of R ranges from 0.6D to 0.8D, for example, R can be 0.7D. Therefore, by limiting the width of the main air inlet area 712 in the front-back direction to s and limiting the radius R of the reference circle C1 to 0.6D-0.8D, the defined main air inlet area 712 is mainly influenced by the air duct curve, the whole structure and other structural members to influence the heat exchange, flow resistance, noise and other effects of the air flow in the area, and by limiting the width of the main air inlet area 712 in the front-back direction to 0.8D-2D, the heat exchange effect of the air flow in the area can be ensured, the noise can be reduced, and the whole thickness can be made thinner.

According to some embodiments of the present invention, referring to fig. 1 and 3, an air conditioning indoor unit 100 includes: the volute assembly comprises a first volute 31 and a second volute 32 which are opposite to each other in a front-back direction and are arranged at intervals, the first volute 31 and the second volute 32 are both connected with the machine shell 1, the first volute 31 is arranged at intervals from top to bottom, the heat exchanger 5 can be located between the two first volutes 31, the first volute 31 is adjacent to the air inlet 121, and the second volute 32 is far away from the air inlet 121. The first volute 31 and the second volute 32 define a part of the air duct, the cross flow wind wheel 41 is located in a space defined by the first volute 31 and the second volute 32, the cross flow wind wheel 41 located above is accommodated in a space defined by the first volute 31 and the second volute 32 located above, the cross flow wind wheel 41 located below is accommodated in a space defined by the first volute 31 and the second volute 32 located below, and a part of the inner wall of the second volute 32 forms the inlet air inner wall 33.

On a section of the air conditioning indoor unit 100 extending in the front-rear direction and parallel to the first direction, a concentric circle C2 is made with the rotation centers of the two cross flow wind wheels 41 as the center of circle, and the closest intersection points of the two concentric circles C2 and the inner wall of the second volute 32 are K1 and K2, respectively. For example, when the first direction is the vertical direction, the closest intersection point between the concentric circle C2 corresponding to the cross-flow wind wheel 41 located above and the inner wall of the second scroll casing 32 is K1, and the closest intersection point between the concentric circle C2 corresponding to the cross-flow wind wheel 41 located below and the inner wall of the second scroll casing 32 is K2. The area of the second volute 32 located upstream of the intersection point K1 and the area located upstream of the intersection point K2 are air inlet sections 71, the area of the second volute 32 located downstream of the intersection point K1 is an air outlet section 72 of the cross flow wind wheel 41 located above, and the area of the second volute 32 located downstream of the intersection point K2 is an air outlet section 72 of the cross flow wind wheel 41 located below.

It should be explained that the "closest intersection point" refers to an intersection point closest to the rotation center of the cross flow wind wheel 41 among all intersection points of all the concentric circles C2 corresponding to the cross flow wind wheel 41 and the inner wall of the second volute 32.

Wherein the distance between K1 and K2 is L, and the ratio of L to D is in the range of 2.5-4.5. If L is less than 2.5D, then be unfavorable for increasing the area of heat exchanger 5, can make the single heat transfer area of heat exchanger 5 little, be unfavorable for the heat transfer, can make two upper and lower through-flow wind wheels 41 drive the flow of air current and can seriously interfere each other simultaneously, can lead to two upper and lower through-flow wind wheels 41 to rush wind mutually, appear discontinuous call sound, influence user experience. If L is greater than 4.5D, the size of the cross-flow wind wheel 41 in the vertical direction is significantly increased, so that the size of the whole machine is large, a large space is occupied, and the cost is increased. The height of the air inlet section 71 of the second volute 32 in the vertical direction is set between 2.5D and 4.5D, so that the heat exchange of the heat exchanger 5 is increased, the interference between the air flows of the upper and lower cross flow wind wheels 41 can be weakened, and the noise is reduced.

According to some embodiments of the utility model, referring to fig. 1, be equipped with on the air inlet inner wall 33 towards the convex reposition of redundant personnel 34 of 5 directions of heat exchanger, reposition of redundant personnel 34 falls into two sub-air inlet sections 711 of arranging along the first direction with air inlet section 71, and two sub-air inlet sections 711 correspond respectively with two through-flow wind wheels 41. For example, when the first direction is the vertical direction, the upper sub air inlet section 711 corresponds to the upper cross flow wind wheel 41, and the airflow entering the upper sub air inlet section 711 is driven by the upper cross flow wind wheel 41 to be blown out from the upper air outlet 122; the sub air inlet section 711 positioned below corresponds to the cross flow wind wheel 41 positioned below, and the air flow entering the sub air inlet section 711 positioned below is driven by the cross flow wind wheel 41 positioned below to be blown out from the air outlet 122 positioned below. Therefore, through the arranged flow dividing piece 34, the air inlet section 71 is divided into two sub air inlet sections 711 which are arranged along the first direction, the mutual influence between the two cross flow wind wheels 41 can be reduced, the mutual air rush between the upper cross flow wind wheel 41 and the lower cross flow wind wheel 41 is weakened, the air flow is more stable, the heating or refrigerating effect is ensured, the inconstant sound which appears is improved, the condensation phenomenon caused by the uneven heat exchange of the heat exchanger 5 during refrigeration is avoided, and the heat exchange efficiency and the heat exchange uniformity are improved.

Alternatively, referring to fig. 1, the diverter 34 may be a diverter plate. Thereby, the structure of the flow dividing member 34 can be made simple, and the flow dividing effect can be ensured.

In some optional embodiments of the present invention, referring to fig. 1, the distance between the end surface of the flow dividing member 34 adjacent to the heat exchanger 5 and the air inlet inner wall 33 is H, and the ratio of H to D is greater than 0.4. If H sets up the undersize, can not play the effect of reposition of redundant personnel, lead to two through-flow wind wheels 41 to have the phenomenon of the serious wind of robbing mutually in service easily, can appear suddenly big suddenly discontinuous sound, perhaps can appear the amount of wind of two through-flow wind wheels 41 big for a moment, just also can lead to heat exchanger 5 heat transfer inhomogeneous, can produce the condensation during refrigeration, the energy efficiency is low during heating, and the heating effect is poor, phenomenons such as unstability. Therefore, the distance H between the end face of the flow dividing piece 34 adjacent to the heat exchanger 5 and the air inlet inner wall 33 is larger than 0.4D, so that mutual air rush existing in the operation of the two through-flow wind wheels 41 can be obviously weakened, airflow flowing is better stabilized, the heating or refrigerating effect is ensured, the inconstant sound which appears and the condensation phenomenon caused by uneven heat exchange of the heat exchanger 5 during refrigeration are better improved, and the heat exchange efficiency and the heat exchange uniformity are further improved.

It should be explained that "the distance H between the end surface of the flow dividing member 34 adjacent to the heat exchanger 5 and the air intake inner wall 33" refers to the distance between the plane of the end surface of the flow dividing member 34 adjacent to the heat exchanger 5 and the air intake inner wall 33 in the front-rear direction. It is understood that the maximum value of H is s.

Optionally, referring to fig. 1, the splitter 34 is spaced apart from the heat exchanger 5. Therefore, a gap is formed between the flow dividing piece 34 and the heat exchanger 5, the heat exchanger 5 is convenient to mount, and interference between the flow dividing piece 34 and the heat exchanger 5 due to thickness dimension errors of the heat exchanger 5 when the whole machine is assembled is avoided.

In some optional embodiments of the present invention, referring to fig. 1, an air conditioning indoor unit 100 includes: the volute assembly comprises a first volute 31 and a second volute 32 which are opposite to each other in a front-back direction and are arranged at intervals, the first volute 31 and the second volute 32 are both connected with the machine shell 1, the first volute 31 is two and are arranged at intervals along a first direction, the heat exchanger 5 can be located between the two first volutes 31, the first volute 31 is adjacent to the air inlet 121, the second volute 32 is far away from the air inlet 121, the first volute 31 and the second volute 32 define a part of an air outlet channel, and the cross-flow wind wheel 41 is located in a space defined by the first volute 31 and the second volute 32. For example, when the first direction is the up-down direction, the cross flow wind wheel 41 located above is accommodated in the space defined by the first scroll casing 31 and the second scroll casing 32 located above, and the cross flow wind wheel 41 located below is accommodated in the space defined by the first scroll casing 31 and the second scroll casing 32 located below. A part of the inner wall of the second scroll casing 32 constitutes an air intake inner wall 33, and the flow dividing member 34 is formed integrally with the second scroll casing 32. Thus, the structure and assembly process of the air conditioning indoor unit 100 can be simplified by integrally molding the flow divider 34 and the second scroll casing 32.

In some optional embodiments of the present invention, referring to fig. 1, the air inlet inner wall 33 includes two sub air inlet inner walls 331 located at both sides of the splitter 34 in the first direction, and each sub air inlet inner wall 331 includes: the plane portion 3311 extending along the first direction and having a planar structure and the arc portion 3312 extending in an arc shape are connected to the plane portion 3311 at one end of the arc portion 3312, the other end of the arc portion 3312 extends toward a direction adjacent to the heat exchanger 5, and the other end of the arc portion 3312 is connected to the shunt member 34. Therefore, the structure of the air inlet inner wall 33 is simple, the flow resistance of the air flow at the air inlet section 71 is reduced, the noise is reduced, the flow dividing piece 34 is connected with the plane portion 3311 of each sub air inlet inner wall 331 through the arc-shaped arc portion 3312, the air flow can be guided to be divided better, and the air flow can flow more smoothly.

According to some embodiments of the present invention, referring to fig. 1 and 2, the thickness d of the heat exchanger 5 has a value range of 20-60mm, thereby ensuring heat exchange effect and reducing the thickness of the whole device, optionally, the heat exchanger 5 may be flat, for example, when the first direction is the up-down direction, the heat exchanger 5 may be placed in the vertical direction, and the heat exchanger 5 may be substantially vertically disposed with respect to the horizontal plane (for example, referring to fig. 2, the included angle between the heat exchanger 5 and the horizontal plane is α may be 80-100 degrees).

According to some embodiments of the present invention, referring to fig. 1, 3-5, the air inlet 121 is provided with an air inlet panel 2, the air inlet panel 2 is formed with a plurality of air inlet holes 21, the air inlet holes 21 can be uniformly distributed on the air inlet panel 2, the air inlet holes 21 can be circular, oval, polygonal (for example, hexagonal), etc., and the equivalent diameter range of the air inlet holes 21 is 3-40 mm. Therefore, the air inlet amount can be ensured, and foreign matters such as external dust can be reduced from entering the machine shell 1.

It should be explained that, when the air inlet holes 21 are circular, the equivalent diameter of the air inlet holes 21 is the diameter of the circle; when the air inlet holes 21 are non-circular, the equivalent diameter of the air inlet holes 21 is the diameter of a circle with the same area.

Alternatively, referring to fig. 1, 3-4, both ends (e.g., upper and lower ends) of the air intake panel 23 in the first direction are bent toward the heat exchanger 5, so that the structure of the air intake panel 2 is simple and beautiful, and air leakage at the upper and lower ends of the heat exchanger 5 can be reduced.

Alternatively, referring to fig. 3 to 5, the casing 1 includes a chassis 11 and a face frame 12 connected in front and back, the first volute 31 and the second volute 32 are disposed in the casing 1, the first volute 31 is connected to the face frame 12, and the second volute 32 is connected to the chassis 11. An air inlet 121 and two air outlets 122 located at two sides of the first direction of the air inlet 121 are formed on the face frame 12, the air inlet panel 2 is covered at the air inlet 121, and the air inlet panel 2 is connected with the face frame 12. Be equipped with first buckle 22 on the air inlet panel 2, be equipped with on the face frame 12 with first buckle 22 joint complex second buckle, make air inlet panel 2's easy dismounting from this.

According to the utility model discloses air conditioner of second aspect embodiment includes: indoor set 100 and the outdoor unit of air conditioning, indoor unit of air conditioning 100 is according to the utility model discloses indoor set 100 of air conditioning of above-mentioned first aspect embodiment, and the outdoor unit of air conditioning links to each other with indoor set 100 of air conditioning.

According to the utility model discloses air conditioner through setting up foretell indoor set of air conditioner 100, can guarantee heat transfer effect, noise reduction, increase air output.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

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

Claims

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

the air conditioner comprises a shell, an air inlet and two air outlets are formed in the shell, the two air outlets are arranged at intervals along a first direction, the air inlet is positioned between the two air outlets in the first direction, an air duct communicated with the air inlet and the air outlets is formed in the shell, and the first direction is vertical to the front-back direction;

the heat exchanger is arranged in the air duct and is adjacent to the air inlet;

the cross-flow wind wheels are arranged in the air duct and are spaced in the first direction, the cross-flow wind wheels correspond to the air outlets respectively, the maximum outer diameter of each cross-flow wind wheel is D, the portion, located on the upstream of each cross-flow wind wheel, of the air duct is an air inlet section, the portion, located on the downstream of each cross-flow wind wheel, of the air duct is an air outlet section, the inner wall, opposite to the heat exchanger and far away from the air inlet, of the air inlet section is an air inlet inner wall, the distance between the air inlet inner wall and the heat exchanger is s, and the ratio range of s to D is 0.8-2.

2. An indoor unit of an air conditioner according to claim 1, wherein the first direction is an up-down direction.

3. The indoor unit of claim 1, wherein on a cross section of the indoor unit extending in the front-rear direction and parallel to the first direction, the rotation centers of the two cross-flow wind wheels are taken as circle centers, and R is taken as a radius as a reference circle, the corresponding tangent lines of the two reference circles which are closest to each other are m and n, respectively, a main air inlet area is defined between m, n, the heat exchanger and the inner wall of the air duct, the main air inlet area forms a part of the air inlet section, the width of the main air inlet area in the front-rear direction is s, and the value range of R is 0.6D-0.8D.

4. An indoor unit of an air conditioner according to claim 1, comprising: the volute assembly comprises a first volute and a second volute which are opposite from each other in the front-back direction and are arranged at intervals, the first volute is close to the air inlet, the second volute is far away from the air inlet, the first volute and the second volute define a part of the air duct, the cross-flow wind wheel is located in a space defined by the first volute and the second volute, a part of the inner wall of the second volute forms the inner wall of the air inlet, on a section of the indoor unit of the air conditioner, which extends in the front-back direction and is parallel to the first direction, the rotation centers of the two cross-flow wind wheels are respectively used as circle centers to form concentric circles, the nearest intersection points of the two concentric circles and the inner wall of the second volute are respectively K1 and K2, the distance between K1 and the K2 is L, and the ratio of the L to the D ranges from 2.5 to 4.5.

5. An indoor unit of an air conditioner according to claim 1, wherein a flow dividing member protruding toward the heat exchanger is provided on the inner wall of the air inlet, the flow dividing member divides the air inlet section into two sub air inlet sections arranged along the first direction, and the two sub air inlet sections correspond to the two cross flow wind wheels respectively.

6. An indoor unit of an air conditioner according to claim 5, wherein a distance between an end surface of the flow dividing member adjacent to the heat exchanger and the inner wall of the intake air is H, and a ratio of H to D is greater than 0.4.

7. An indoor unit of an air conditioner according to claim 6, wherein the flow dividing member is spaced apart from the heat exchanger.

8. An indoor unit of an air conditioner according to claim 5, comprising: the volute assembly comprises a first volute and a second volute which are opposite in front and back and are arranged at intervals, the first volute is close to the air inlet, the second volute is far away from the air inlet, the first volute and the second volute limit one part of the air duct, the cross-flow wind wheel is located in a space limited by the first volute and the second volute, one part of the inner wall of the second volute forms the inner wall of the air inlet, and the flow dividing piece and the second volute are integrally formed.

9. An indoor unit of an air conditioner according to claim 5, wherein the air inlet inner wall includes two sub air inlet inner walls located on both sides of the flow divider in the first direction, each of the sub air inlet inner walls including:

a planar portion extending in the first direction and having a planar structure;

the arc portion that is the arc and extends, the one end of arc portion with plane portion links to each other, the other end orientation of arc portion is neighbouring the direction of heat exchanger extends, just the other end of arc portion with the reposition of redundant personnel links to each other.

10. An indoor unit of an air conditioner according to claim 1, wherein the thickness of the heat exchanger is in the range of 20 to 60 mm.

11. An indoor unit of an air conditioner according to any one of claims 1 to 10, wherein an air inlet panel is provided at the air inlet, and a plurality of air inlet holes are formed in the air inlet panel, and the equivalent diameter of the air inlet holes ranges from 3 mm to 40 mm.

12. An air conditioner, comprising:

an air-conditioning indoor unit according to any one of claims 1 to 11;

and the air conditioner outdoor unit is connected with the air conditioner indoor unit.