WO2019042289A1

WO2019042289A1 - Air conditioner indoor unit

Info

Publication number: WO2019042289A1
Application number: PCT/CN2018/102769
Authority: WO
Inventors: 关婷婷; 王永涛
Original assignee: 青岛海尔空调器有限总公司
Priority date: 2017-08-30
Filing date: 2018-08-28
Publication date: 2019-03-07
Also published as: CN107606698B; CN107606698A

Abstract

Provided in the invention is a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit is provided with a flow guiding plate (60) arranged below an air outlet (90) and used for guiding the air flow located below the air outlet (90) outside the air conditioner indoor unit to the position in front of the air outlet, so that the air flow out of the air conditioner indoor unit is mixed with the air flow on the outer side of the air conditioner indoor unit and sent out. The flow guiding plate (60) leads in the air flow outside the indoor unit, and mixed flow air is formed by mixing the air flow flowing out of the interior of the indoor unit with the air flow outside the indoor unit. The air outlet amount is increased, at the meantime, the cold air or hot air sent out from the air outlet (90) is mixed by utilizing the indoor air, so that the temperature of the supply air flow is appropriate, and the effect that the user feels comfortable is achieved. In addition, a connection piece (70) connects a housing (10) and a lateral center of the flow guiding plate (60). The connection piece (70) is provided with a grid structure with a plurality of through holes, so that the air in the rear of the connection piece (70) is allowed to pass through the through holes and guided frontwards, and that guiding flow air can be formed in transverse areas of the whole indoor unit. And the problem of air guiding loss caused by blocking of the connection piece (70) is solved, the bad problem such as guided air flowing back can be further avoided, and thus good experience of a user is ensured.

Description

Air conditioner indoor unit

Technical field

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

Background technique

In the prior art, the air outlet of the air conditioner indoor unit is generally disposed at the bottom of the air conditioner casing. Due to the limited position, the air outlet is generally designed as a long strip. Due to the narrow air supply range, the air outlet has a correspondingly small amount of air supply, which cannot meet the needs of users.

Further, in the prior art, when a general air-conditioning indoor unit is in operation, cold air (hot air) is directly blown out from the air outlet. When the airflow of the air conditioner is blown onto the human body, the temperature is very low (high), the user feels very uncomfortable, and it is easy to cause air conditioning disease.

Summary of the invention

In view of the above problems, the present invention has been made in order to provide an air conditioning indoor unit that overcomes the above problems or at least partially solves the above problems.

A further object of the invention is to improve user comfort.

Another further object of the invention is to avoid the problem of lack of drafting caused by the connector.

Another further object of the invention is to avoid the occurrence of blow traps.

The invention provides an air conditioner indoor unit, comprising: a casing, the bottom of the casing is provided with two air outlets which are opened toward the front side and extend laterally along the air conditioner indoor unit; two cross flow fans are arranged along the lateral direction of the air conditioner indoor unit On the left and right sides of the casing, each cross-flow fan corresponds to an air outlet; the drainage plate is disposed below the air outlet, and the drainage plate forms a drainage air duct with the bottom of the casing, and the drainage plate is used for externally of the air conditioner indoor unit The airflow is introduced into the drainage air duct, so that the airflow of the air conditioner indoor unit is mixed with the airflow outside the air conditioner indoor unit, and the connecting member is connected to the lateral center of the casing and the drainage plate respectively for fixing the drainage board. The connecting member has a plurality of through holes extending in the front-rear direction of the indoor unit.

Optionally, the connecting member further includes: a first connecting portion extending transversely along the indoor unit, the cross section of which is a semi-annular structure, and the two ends of the half ring are connected to the two edges of the width direction of the draining plate;

a second connecting portion extending laterally along the indoor unit, the side extending in the lateral direction connecting the lateral center of the housing, and the other side extending in the lateral direction connecting the outer side surface of the half ring of the second connecting portion; wherein the through hole is disposed in the second On the connection.

Optionally, each of the through holes has a rectangular cross section of the same size.

Alternatively, the plurality of through holes are arranged at equal intervals in the lateral direction and the longitudinal direction of the second connecting portion.

Optionally, the air conditioner indoor unit further includes: a flow guiding member disposed between the two cross flow fans, the flow guiding member having a tip protruding toward the air outlet direction of the indoor unit.

Optionally, the tip includes: a first inclined surface, a left side surface forming a sharp point, which is inclined toward the right side of the indoor unit; and a second inclined surface forming a sharp right side surface, which is inclined toward the left side of the indoor unit; The intersection of the first bevel and the second bevel forms a pointed end line.

Optionally, the tip end line is located intermediate the interval between the two cross flow fans.

Optionally, the air conditioner indoor unit further includes: two air guiding plates respectively disposed on the inner sides of the two air outlets, wherein each air guiding plate corresponds to a position of a cross flow fan in a lateral direction of the air conditioning indoor unit, and is configured The winding is rotated about an axis parallel to the lateral direction of the air conditioner indoor unit to adjust the vertical air blowing direction of the corresponding cross flow fan.

Optionally, the air conditioner indoor unit further includes: a plurality of sets of swinging blade assemblies disposed on the inner side of the air outlet, each set of swinging blade assemblies corresponding to a position of a cross flow fan in a lateral direction of the air conditioner indoor unit, for adjusting corresponding The cross-flow direction of the cross-flow fan.

Optionally, each set of swinging blade assembly includes: a connecting rod, the main body of which is disposed along a lateral direction of the air conditioning indoor unit, configured to be movable along a length direction thereof; the plurality of pendulum leaves are spaced and pivotally disposed on the connecting rod , configured to swing along the lateral direction of the air conditioner indoor unit under the driving of the connecting rod. The stepping motor, the output end of the stepping motor is connected to the corresponding connecting rod, configured to drive the link movement; the stepping motor is further configured to drive the connecting rod to move within a preset lateral range, so that each set of swinging blade assembly The pendulum leaves oscillate within a preset range of angles.

The invention provides a wall-mounted air conditioner indoor unit, which has a drainage plate disposed under the air outlet for guiding the airflow outside the air outlet outside the air-conditioning indoor unit to the front of the air outlet to make the air-conditioning room The air outlet of the machine is mixed with the airflow outside the air conditioner indoor unit and sent out. The deflector introduces the airflow outside the indoor unit and mixes with the airflow flowing from the inside of the indoor unit to form a mixed air. While increasing the air volume, the indoor air and the cold air or hot air sent by the air outlet are used to make the air supply air temperature suitable, so as to achieve the user's comfortable feeling. In addition, the connecting member has a multi-through-hole grid structure, allowing the air behind the connecting member to be drained forward through the through hole, so that the horizontal portion of the entire indoor unit can form a drafting wind, thereby solving the induced wind caused by the obstruction of the connecting member. If there is a problem, it will avoid the bad problems such as the return of the wind and the user's good experience.

Further, in the air-conditioning indoor unit of the present invention, a flow guiding member is disposed at an interval between the two cross-flow fans, and the first inclined surface of the deflector tip guides the air outlet region of the left cross-flow fan to the right side, and the pointed portion The two inclined surfaces guide the air outlet area of the right cross flow fan to the left side. Therefore, the entire lateral length of the indoor unit can be ventilated, and the wind blind zone between the two air outlets is avoided.

The above as well as other objects, advantages and features of the present invention will become apparent to those skilled in the <

DRAWINGS

Some specific embodiments of the present invention will be described in detail, by way of example, and not limitation, The same reference numbers in the drawings identify the same or similar parts. Those skilled in the art should understand that the drawings are not necessarily drawn to scale. In the figure:

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

2 is a schematic view showing the internal structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

3 is a schematic view showing the internal structure of an indoor unit of an air conditioner according to an embodiment of the present invention;

4 is a schematic view of a connector of an air conditioner indoor unit according to an embodiment of the present invention;

Figure 5 is a schematic view of a connector of an air conditioner indoor unit according to an embodiment of the present invention; and

Figure 6 is a schematic illustration of a cross flow fan and swinging vane assembly of an air conditioning indoor unit in accordance with one embodiment of the present invention.

Detailed ways

This embodiment first provides an air conditioner indoor unit, as shown in FIG. 1 and FIG. 2. The air conditioning indoor unit includes a housing 10, a plurality of cross flow fans 20, and a plurality of air deflectors 50.

The housing 10 further includes a skeleton 11, a cover 12, a panel 13, a left end cover 14, and a right end cover (not shown due to occlusion). The skeleton 11 constitutes a main structure inside the air conditioner. The casing 12 is placed on the front side of the skeleton 11. The bottom of the casing 12 is provided with an air outlet 90 which is opened toward the front side and extends laterally along the air conditioner indoor unit, and the top of the casing 12 is provided with an air inlet. The panel 13 is disposed on the front side of the casing 12, and the left end cover 14 and the right end cover are respectively disposed at the left and right ends of the frame 11.

The two cross-flow fans 20 are disposed coaxially coaxially on the left and right sides of the casing 10 along the lateral direction of the air-conditioning indoor unit, that is, the rotating shafts of the two cross-flow fans 20 are on the same straight line. Preferably, the two cross flow fans 20 are the same size and length.

Two air deflectors 50 are disposed on the inner side of the air outlet 90. Each air deflector 50 corresponds to a position of a cross flow fan 20 in the lateral direction of the air conditioner indoor unit, and is disposed in a direction parallel to the lateral direction of the air conditioner indoor unit. The axis is rotated to adjust the vertical direction of the corresponding cross-flow fan. In the present embodiment, the lateral ends of the wind deflector 50 are provided with rotating shafts to allow the wind deflector 50 to pivot.

In this embodiment, the air conditioning indoor unit further includes: a flow guiding member. The flow guiding member is disposed between the two cross flow fans 20, and the flow guiding member has a tip 80 extending toward the air outlet direction of the indoor unit, that is, the end of the tip 80 is directed toward the air outlet direction of the indoor unit. The above-mentioned tip 80 includes a first slope 81 and a second slope 82. The first slope 81 forms a left side surface of the tip 80 which is disposed obliquely toward the right side of the indoor unit. The second slope 82 forms a right side surface of the tip 80 which is disposed obliquely toward the left side of the indoor unit.

The ends of the first slope 81 and the second slope 82 intersect to form an end line of the tip 80. The end line of the cusp 80 is located at an intermediate position between the two cross flow fans 20. That is, the first slope 81 and the second slope 82 are line-symmetrical with respect to the end line.

Since there is a certain interval between the two cross flow fans 20, it is easy to form an air blind zone. In this embodiment, a flow guiding member is disposed between the two cross flow fans 20 . The first inclined surface 81 of the deflector tip 80 guides the air outlet area of the left cross flow fan to the right side, and the second inclined surface 82 of the tip 80 guides the air outlet area of the right cross flow fan 20 to the left side. The range of the air outlet is expanded, so that the entire lateral length of the indoor unit can be ventilated, and the wind blind zone between the two air outlets is avoided.

In the embodiment, the air conditioner indoor unit further includes: a drain plate 60 and a connecting member 70. The drain plate 60 forms a drain duct 91 with the bottom of the casing, and the drain plate 91 is for introducing the airflow outside the air conditioner indoor unit into the drain duct 91. The drainage plate 60 is disposed at the bottom of the outer side of the casing 10, and is configured to guide the airflow under the air outlet of the air conditioner indoor unit to the front of the air outlet of the air conditioner indoor unit to make the air outlet of the air conditioner indoor unit and the outside of the air conditioner indoor unit. The airflow is mixed and sent out. In the present embodiment, the drain plate 60 also extends in the lateral direction of the wall-mounted air conditioner indoor unit, and its length is equal to the extension length of the indoor unit casing. The drain plate 60 is disposed at the lower rear of the wind deflector 50, that is, the drain plate 60 and the wind deflector 50 have a certain interval. The function of the draining plate 60 is to introduce an airflow outside the indoor unit and mix it with the airflow flowing out from the inside of the indoor unit to form a mixed air. While increasing the air volume, the indoor air and the cold air or hot air sent by the air outlet are used to make the air supply air temperature suitable, so as to achieve the user's comfortable feeling. The above-mentioned drainage plate 60 has an elliptical cross section, and its upper surface has a convex curved surface, which can improve the drainage effect.

The connecting member 70 connects the lateral center of the housing 10 and the drain plate 60 for fixedly mounting the driving draining plate 60. The connecting member 70 connects the lateral center of the housing and the drain plate 60 to ensure that the drain plate 60 is fixedly stable. In the present embodiment, the connecting member 70 is connected to the lateral center of the drainage plate 60 instead of the both ends of the drainage plate 60, so that both ends of the drainage plate 60 can also achieve drainage.

In the present embodiment, as shown in Figs. 4 and 5, the connecting member 70 includes a first connecting portion 71 and a second connecting portion 72. The first connecting portion 71 has a semi-annular structure and has a certain width in the lateral direction of the indoor unit to improve the fixing strength of the drain plate 60. Both ends of the half ring are connected to the lateral center of the drain plate 60, and both ends of the half ring are respectively connected to the both edges of the width direction of the drain plate 60. The second connecting portion 72 has a main plate shape and a lateral width equal to the width of the first connecting portion 71. The laterally extending one side connects the lateral center of the casing 10, and the other side connects the outer side surface of the second connecting portion half ring. The second connecting portion 72 further has a connecting rib 722 for fixing the connecting housing 10, and the connecting rib 722 is located at the top end of the second connecting portion 72.

The second connecting portion 72 has a plurality of through holes 721 extending in the front-rear direction of the indoor unit. Since the connecting member 70 has a certain width, the flow guiding of the deflector 60 is hindered to some extent. In the present embodiment, the connecting member 70 has a grid structure of a plurality of through holes 721, allowing the air behind the connecting member 70 to be drained forward through the through hole 721, so that the horizontal portion of the entire indoor unit can form a drafting wind, thereby solving the problem. Due to the problem of lack of draft air caused by the obstruction of the connecting member 70, problems such as induced recirculation and backflow are avoided, and a good experience of the user is ensured. In the present embodiment, each of the through holes 721 has a rectangular cross section of the same size to ensure smooth airflow through the through holes. The plurality of through holes 721 are arranged at equal intervals in the lateral direction and the longitudinal direction of the second connecting portion 72 to ensure uniformity of the draft air.

Each cross-flow fan 20 is provided with a separate swinging blade assembly 30. In the present embodiment, the air conditioning indoor unit includes two sets of swinging blade assemblies 30. The two sets of swinging blade assemblies 30 are disposed inside the air outlets, and each set of swinging blade assemblies 30 corresponds to the position of a cross flow fan 20 in the lateral direction of the air conditioning indoor unit, and provides a wind guiding function for the corresponding cross flow fan 20. Each cross flow fan 20 is also provided with a fan motor 21. The fan motor 21 is disposed at an end of the cross-flow fan 20 away from the other cross-flow fan 20 for driving the cross-flow fan 20 to rotate. The above two fan motors 21 can be operated simultaneously to drive the two fans to rotate at the same time, or one of the fan motors 21 can be separately turned on so that one of the two fans is in an operating state and the other stops the air supply.

The two sets of swinging blade assemblies 30 are disposed inside the air outlets, and each set of swinging blade assemblies 30 corresponds to the position of a cross flow fan 20 in the lateral direction of the air conditioning indoor unit, and provides a wind guiding function for the corresponding cross flow fan 20. Each cross-flow fan 20 further includes a fan motor 21 disposed at one end of the cross-flow fan 20 away from the other cross-flow fan 20 and configured to drive the cross-flow fan 20 to rotate. The above two fan motors 21 can be operated simultaneously to drive the two fans to rotate at the same time, or one of the fan motors 21 can be separately turned on so that one of the two fans is in an operating state and the other stops the air supply.

As shown in FIG. 6, each of the cross flow fans 20 is further provided with a volute tongue 40 extending laterally along the air conditioner indoor unit. The inner side of the volute tongue 40 is used to define an air outlet of the cross-flow fan 20 that faces downward.

Each set of swinging blade assemblies 30 includes a link 31, a plurality of pendulum blades 32, and a stepper motor 310. The main body 311 of the link 31 is extended in the lateral direction of the air conditioner indoor unit, and the link 31 is movable in the longitudinal direction thereof. The plurality of pendulum blades 32 are spaced and pivotally disposed on the link 31, and when the link 31 moves in the longitudinal direction thereof, the plurality of pendulum blades 32 are driven to swing side to side in the lateral direction of the air conditioner indoor unit. Specifically, the root of each of the pendulum blades 32 has a short rod, and the short rod is provided with two pivot shafts, wherein the first pivot shaft is located at the end of the short rod, the connecting rod 31, the second pivot shaft, that is, the pendulum The leaf shaft 321 connects the volute tongue 40 above the swinging blade 32. During the lateral movement of the link 31, each of the pendulum blades 32 swings around the swinging blade shaft 321 to the left and right. When the swinging blade 32 swings to the left, the cross-flow fan 20 vents to the left side of the air-conditioning indoor unit; when the swinging blade 32 swings to the right, the cross-flow fan 20 vents to the right side of the air-conditioning indoor unit. The two swinging blade assemblies 30 are symmetrically disposed on the left and right sides, and the main bodies 311 of the two links 31 are on the same straight line.

The air conditioning indoor unit of the present embodiment has two sets of cross flow fans 20 and two sets of independently controllable swing vane assemblies 30. Each of the cross-flow fans 20 of the air-conditioning indoor unit can be separately controlled, and the two sets of swinging blades 32 can be swinged to both sides at the same time to increase the air supply area of the indoor unit. The two sets of pendulum blades 32 can also swing to the inside at the same time. Due to the existence of the flow guiding member, not only the wind blind zone but also the wind-blown zone can be formed in the middle area of the air-conditioning indoor unit, and the mixed-flow airflow region of the two cross-flow fans can be formed. Softer and more user-friendly. The air-conditioning indoor unit can also separately open the cross-flow fan 20 and the swinging blade assembly 30 on one side, thereby reducing the output power of the indoor unit, and being more energy-saving and environmentally friendly. The air conditioner indoor unit of the embodiment has a plurality of adjustable air supply modes, which improves the user experience.

It should be understood by those skilled in the art that, unless otherwise specified, "upper", "lower", "left", "right", "horizontal", "vertical", and "previous" are used in the novel embodiments. The terms used to indicate the position or positional relationship are based on the actual use state of the air conditioner indoor unit. These terms are only for the convenience of description and understanding of the new technical solutions, rather than instructions or It is suggested that the device or component referred to must have a specific orientation and therefore cannot be construed as limiting the novel.

In this regard, it will be appreciated by those skilled in the <RTIgt;the</RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; </ RTI> <RTIgt; The content directly determines or derives many other variations or modifications consistent with the principles of the invention. Therefore, the scope of the invention should be understood and construed as covering all such other modifications or modifications.

Claims

An air conditioner indoor unit includes:

a housing, the bottom of the housing is provided with two air outlets opening toward the front side and extending laterally along the air conditioner indoor unit;

Two cross-flow fans are disposed laterally on the left and right sides of the casing along the air-conditioning indoor unit, and each of the cross-flow fans corresponds to one of the air outlets;

a drainage plate disposed under the air outlet, the drainage plate forming a drainage air duct with a bottom of the casing, wherein the drainage plate is configured to introduce an airflow outside the air conditioner indoor unit into the drainage air passage, so that The airflow of the air conditioner indoor unit is mixed with the airflow outside the air conditioner indoor unit, and then sent out; and

The connecting member has two ends connected to the lateral center of the casing and the drain plate for fixing the drain plate, and the connecting member has a plurality of through holes extending along the front and rear direction of the indoor unit.
The air conditioner indoor unit according to claim 1, wherein the connecting member further comprises:

a first connecting portion extending laterally along the indoor unit, the cross section of which is a semi-annular structure, and the two ends of the half ring are connected to the two edges of the drainage plate in the width direction;

a second connecting portion extending laterally along the indoor unit, the laterally extending side connecting the lateral center of the casing, and the other side extending laterally connecting the outer side of the second connecting portion half ring;

The through hole is disposed on the second connecting portion.
The air conditioner indoor unit according to claim 2, wherein

Each of the through holes has a rectangular cross section of the same size.
The air conditioner indoor unit according to claim 3, wherein

A plurality of the through holes are arranged at equal intervals in the lateral direction and the longitudinal direction of the second connecting portion.
The air conditioner indoor unit according to claim 1, further comprising:

The flow guiding member is disposed between the two cross flow fans, and the flow guiding member has a tip protruding toward the air outlet direction of the indoor unit.
The air conditioning indoor unit according to claim 5, wherein said tip includes:

a first inclined surface forming a left side surface of the pointed point, which is inclined toward the right side of the indoor unit;

a second inclined surface forming a right side surface of the pointed ridge, which is inclined toward the left side of the indoor unit;

An intersection of the first slope and the second slope forms an end line of the pointed point.
The air conditioner indoor unit according to claim 6, wherein

The end line of the pointed file is located at an intermediate position between the two cross flow fans.
The air conditioner indoor unit according to claim 1, further comprising:

Two air guiding plates are respectively disposed on the inner sides of the two air outlets, and each air guiding plate corresponds to a position of one of the cross flow fans in a lateral direction of the air conditioning indoor unit, and is configured to be parallel to the One axis of the air conditioner indoor unit rotates to adjust a vertical direction of the corresponding cross-flow fan.
The air conditioner indoor unit according to claim 1, further comprising:

a plurality of sets of swinging blade assemblies disposed on the inner side of the air outlet, each set of swinging blade assemblies corresponding to a position of the cross flow fan in a lateral direction of the air conditioning indoor unit, configured to adjust a corresponding cross flow fan The direction of the lateral wind.
The air conditioning indoor unit according to claim 9, wherein each set of swinging blade assembly comprises:

a connecting rod, the main body of which is disposed along a lateral direction of the air conditioning indoor unit, and configured to be movable along a length direction thereof;

A plurality of pendulum leaves are spaced and pivotally disposed on the connecting rod and configured to swing along a lateral direction of the air conditioning indoor unit under the driving of the connecting rod.

a stepping motor, the output end of the stepping motor is connected to the corresponding connecting rod, and configured to drive the connecting rod to move;

The stepper motor is further configured to drive the link to move within a predetermined lateral extent such that each set of the pendulum blades of the set of blade assemblies oscillate within a predetermined range of angles.