Indoor unit of air conditioner

Abstract

The air conditioner indoor unit comprises a shell and a switch plate, a first air outlet and a second air outlet are formed in the front side of the shell, an air outlet channel and a bypass air channel are arranged in the shell, the air outlet end of the air outlet channel is the first air outlet, the air outlet end of the bypass air channel is the second air outlet, and the air inlet end of the bypass air channel is connected to the air outlet channel; a communicating hole is formed in the switch plate; the plane where the air inlet end of the bypass air duct is located is a first plane, and the switch plate is always located on the first plane when working and is movably arranged at the air inlet end of the bypass air duct so as to change the included angle between the axis of the communicating hole and the first plane. The air conditioner indoor unit has multiple air outlet modes. The adjusting range of the air outlet angle of the air conditioner indoor unit is widened, and the adjusting range of the air outlet amount of the air conditioner indoor unit is further widened. By means of the multiple air outlet modes, the air conditioner indoor unit can meet multiple requirements of users, and therefore the comfort degree of the air conditioner indoor unit is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to an indoor unit of an air conditioner. Background Art

[0002] At present, with the rapid development of society and the continuous improvement of people's living standards, people's requirements for the quality of life are getting higher and higher. Air conditioners, as important electrical devices, have gradually entered thousands of households and are used by everyone. However, the existing air supply mode of air conditioner indoor units is a single mode, which cannot meet the user's demand for multiple air outlet modes of air conditioner indoor units. Summary of the invention

[0003] In view of the above problems, the present invention is proposed to provide an air-conditioning indoor unit that overcomes the above problems or at least partially solves the above problems, which can realize multiple air outlet modes of the air-conditioning indoor unit and can bring better air supply experience to users.

[0004] Specifically, the present invention provides an air conditioner indoor unit, comprising:

[0005] A shell, wherein a first air outlet and a second air outlet are provided on the front side of the shell, an air outlet duct and a bypass air duct are provided in the shell, an air outlet end of the air outlet duct is the first air outlet, an air outlet end of the bypass air duct is the second air outlet, and an air inlet end of the bypass air duct is connected to the air outlet duct;

[0006] A switch plate, wherein the switch plate is provided with a connecting hole; the plane where the air inlet end of the bypass air duct is located is a first plane, and the switch plate is always on the first plane when working, and is movably arranged at the air inlet end of the bypass air duct to change the angle between the axis of the connecting hole and the first plane.

[0007] Optionally, the switch plate has a first position and a second position;

[0008] The connecting hole has a first end facing the bypass air duct and a second end facing the air outlet duct. In a first position, the first end is located in front of the second end; in a second position, the first end is located behind the second end.

[0009] Optionally, the second air outlet is a breeze outlet.

[0010] Optionally, the communicating holes are micropores.

[0011] Optionally, the switch plate is rotatably arranged around an axis perpendicular to the first plane.

[0012] Optionally, the air inlet end of the bypass air duct extends along a preset direction;

[0013] There are multiple switch plates, and the multiple switch plates are arranged along the preset direction;

[0014] A plurality of the switch plates move synchronously, or at least one of the switch plates moves individually.

[0015] Optionally, the air conditioner indoor unit further comprises a fixing rod extending in a preset direction and a driving mechanism; the driving mechanism is used to drive the switch plate to move;

[0016] The switch plate is a circular plate, the center of which is rotatably mounted on the fixing rod; and

[0017] The driving mechanism comprises:

[0018] A motor, the motor comprising an output shaft;

[0019] A connecting rod, the connecting rod is vertically arranged, and one side of the circular plate is rotatably mounted on the connecting rod;

[0020] A connecting shaft, one end of which is mounted on the output shaft, and the other end of which is rotatably connected to the connecting rod.

[0021] Optionally, the first air outlet and the second air outlet both extend in a vertical direction;

[0022] There are two first air outlets, which are symmetrically arranged with respect to a vertical reference plane extending front to back; and

[0023] There are two second air outlets, which are symmetrically arranged with respect to the reference plane;

[0024] The air conditioner indoor unit further includes an air induction partition arranged between the two first air outlets and between the two second air outlets.

[0025] Optionally, the shell includes two air outlet columns, and a first air outlet and a second air outlet are formed on the front side of each of the air outlet columns.

[0026] Optionally, the second air outlet is located on a side of the first air outlet away from another air outlet column;

[0027] The two air outlet columns are spaced apart so that the air induction interval is formed between the two air outlet columns;

[0028] The first air outlet is provided with an air guiding device for guiding the air horizontally and / or vertically.

[0029] The air conditioner indoor unit of the present invention has a first air outlet, a second air outlet, an air outlet duct and a bypass air duct in the shell, and a switch plate is provided between the air outlet duct and the bypass air duct. By rotating the switch plate, the difficulty of air intake and / or air outlet of the bypass air duct can be changed, and even the air inlet end at the corresponding switch plate position of the bypass air duct can be completely closed, thereby closing the bypass air duct. Therefore, the air conditioner indoor unit of the present invention has a variety of air outlet modes. For example, the first air outlet can be selected to discharge air, or the second air outlet can be selected to discharge air, or the first air outlet and the second air outlet can be selected to discharge air at the same time, which not only increases the adjustment range of the air outlet angle of the air conditioner indoor unit, but also increases the adjustment range of the air outlet volume of the air conditioner indoor unit. A variety of air outlet modes enable the air conditioner indoor unit to meet the various needs of users, thereby improving the comfort of the air conditioner indoor unit.

[0030] Based on the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will become more aware of the above and other objects, advantages and features of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0032] Figure 1 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0033] Figure 2 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0034] Figure 3 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention;

[0035] Figure 4 is a diagram of a first use state of a switch board in one embodiment of the present invention;

[0036] Figure 5 is a schematic working principle diagram of a connecting shaft in one embodiment of the present invention;

[0037] Figure 6 is a diagram of a second use state of a switch board in one embodiment of the present invention;

[0038] Figure 7 Schematic diagram of the structure of a switch board in one embodiment of the present invention. DETAILED DESCRIPTION

[0039] Refer to the following Figures 1 to 7The indoor unit of an air conditioner according to an embodiment of the present invention is described in detail. The directions or positional relationships indicated by “front”, “rear”, “upper”, “lower”, “top”, “bottom”, “inner”, “outer”, “lateral”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0040] The terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second", etc. may explicitly or implicitly include at least one of the features, that is, include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. When a feature "includes or contains" one or some of the features it covers, unless otherwise specifically described, this indicates that other features are not excluded and may further include other features.

[0041] Unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0042] Figure 1 is a cross-sectional view of an indoor unit of an air conditioner according to an embodiment of the present invention, with reference to Figures 2 to 7 The air conditioner indoor unit of the embodiment of the present invention includes a housing 10 and a switch plate 30.

[0043] The shell 10 has a front side with a first air outlet 13 and a second air outlet 14 , and an air outlet duct 15 and a bypass air duct 16 are provided inside the shell. The air outlet end of the air outlet duct 15 is the first air outlet 13 , the air outlet end of the bypass air duct 16 is the second air outlet 14 , and the air inlet end of the bypass air duct 16 is connected to the air outlet duct 15 .

[0044] The switch plate 30 is provided with a connecting hole 31; the plane where the air inlet end of the bypass air duct 16 is located is a first plane, and the switch plate 30 is always on the first plane when working, and is movably arranged at the air inlet end of the bypass air duct 16 to change the angle between the axis of the connecting hole 31 and the first plane.

[0045] In this embodiment, since the housing is provided with a first air outlet 13, a second air outlet 14, an air outlet duct 15 and a bypass air duct 16, and a switch plate 30 is provided between the air outlet duct 15 and the bypass air duct 16, the difficulty of air intake and / or air outlet of the bypass air duct can be changed by rotating the switch plate 30, and even the air intake end at the corresponding switch plate position of the bypass air duct can be completely closed, thereby closing the bypass air duct. Therefore, the air conditioner indoor unit of the present invention has a variety of air outlet modes. For example, the first air outlet 13 can be selected to discharge air, or the second air outlet 14 can be selected to discharge air, or the first air outlet 13 and the second air outlet 14 can be selected to discharge air at the same time, which not only increases the adjustment range of the air outlet angle of the air conditioner indoor unit, but also increases the adjustment range of the air outlet volume of the air conditioner indoor unit. A variety of air outlet modes enable the air conditioner indoor unit to meet the various needs of users, thereby improving the comfort of the air conditioner indoor unit.

[0046] Further, in some optional embodiments of the present invention, the switch plate is rotatably arranged around an axis perpendicular to the plane where the air inlet end of the bypass air duct is located, that is, the switch plate is rotatably arranged around an axis perpendicular to the first plane. In some alternative embodiments of the present invention, the switch plate is rotatably arranged around an axis parallel to the plane where the air inlet end of the bypass air duct is located; that is, the switch plate is rotatably arranged around an axis parallel to the first plane.

[0047] Furthermore, the size of the switch board can be designed according to the needs of use, which can be divided into the following three cases:

[0048] The first case: there is only one switch plate 30 and its size is large. When the switch plate 30 is on the first plane, the edge of the switch plate 30 coincides with the inlet edge of the bypass air duct 16. At this time, by changing the angle between the axis of the connecting hole 31 and the first plane, the inlet of the bypass air duct 16 can be completely closed.

[0049] The second situation: there is only one switch plate 30 and its size is relatively small. When the switch plate 30 is on the first plane, the edge of the switch plate 30 partially overlaps with the inlet edge of the bypass air duct 16. At this time, the inlet portion of the bypass air duct 16 can be closed by changing the angle between the axis of the connecting hole 31 and the first plane.

[0050] The third situation: there are multiple switch plates 30, and the size of the switch plates 30 is very small. The inlet of the bypass air duct 16 can be partially closed by rotating some of the switch plates 30, or all of the switch plates 30 can be rotated at the same time to completely close the inlet of the bypass air duct 16. The air intake volume of the bypass air duct 16 can be adjusted by selecting a combination of different numbers of switch plates.

[0051] In some optional embodiments of the present invention, the switch plate 30 has a first position (eg Figure 3 as shown) and a second position (as shown Figure 2 shown).

[0052] The communication hole has a first end facing the bypass air duct and a second end facing the outlet air duct. Figure 3 As shown, in the first position, the first end is located in front of the second end; Figure 2 As shown, in the second position, the first end is located at the rear side of the second end.

[0053] Specifically, Figure 3 As shown, when the switch plate 30 is in the first position, the air outlet duct 15 and the bypass duct 16 are connected, and the airflow in the air outlet duct 15 enters the bypass duct 16 through the connecting hole 31, and can be delivered to the room through the second air outlet 14. Figure 2 As shown, when the switch plate 30 is located at the second position, the air outlet duct 15 and the bypass air duct 16 are not connected, and the second air outlet 14 cannot supply air to the room.

[0054] In this embodiment, by changing the position of the switch plate 30 and the opening and closing of the first air outlet 13, the air conditioner indoor unit can have the following air outlet modes:

[0055] The first air outlet mode: when the switch plate 30 is in the first position, if the first air outlet 13 is closed, the airflow in the air outlet duct 15 will all flow into the bypass duct 16 and flow to the second air outlet 14, that is, at this time only the second air outlet 14 supplies air to the room.

[0056] The second air outlet mode: when the switch plate 30 is in the first position, if the first air outlet 13 is opened, a part of the airflow in the air outlet duct 15 flows into the bypass duct 16 and flows to the second air outlet 14, and another part of the airflow in the air outlet duct 15 flows to the first air outlet 13. That is to say, at this time, the first air outlet 13 and the second air outlet 14 can supply air to the room at the same time.

[0057] The third air outlet mode: when the switch plate 30 is in the second position, if the first air outlet 13 is opened, the airflow in the air outlet duct 15 will all flow to the first air outlet 13, that is, at this time only the first air outlet 13 supplies air to the room.

[0058] In addition, when the switch plate 30 is located at the second position, if the first air outlet 13 is closed, then both the first air outlet 13 and the second air outlet 14 do not supply air to the room.

[0059] In some optional embodiments of the present invention, the second air outlet 14 is a breeze outlet.

[0060] Specifically, a breeze panel is provided at the air outlet end of the bypass air duct to form the breeze outlet. The breeze panel is evenly distributed with a plurality of small openings.

[0061] In this embodiment, the wind sent out by the bypass air duct is dispersed by the breeze panel and becomes a breeze, so that the wind out of the second air outlet is "softer", and the wind out of the first air outlet and the second air outlet are different, so as to further meet the differentiated air supply needs of users. The air conditioner has a breeze mode, a breeze + normal wind mode and a normal wind mode.

[0062] In some optional embodiments of the present invention, the connecting holes are micropores.

[0063] In this embodiment, the micropores can break up the airflow into a breeze, thereby making the air out of the second air outlet softer.

[0064] In some optional embodiments of the present invention, the air inlet end of the bypass air duct 16 extends along a preset direction. Figure 4-6 As shown, there are multiple switch plates, and the multiple switch plates are arranged along the preset direction. The multiple switch plates move synchronously. In some alternative embodiments of the present invention, or at least one of the switch plates moves independently.

[0065] Specifically, when the plurality of switch plates move synchronously, it is convenient to achieve complete closure of the inlet of the bypass air duct 16. When at least one switch plate moves alone, the plurality of switch plates may move asynchronously, so as to adjust the closure range of the inlet of the bypass air duct 16, and the inlet of the bypass air duct 16 may be completely closed or partially closed.

[0066] In some optional embodiments of the present invention, the air conditioner indoor unit further includes a driving mechanism 50 and a fixing rod 40 extending along a preset direction.

[0067] The driving mechanism is used to drive the switch plate to move. The switch plate 30 is a circular plate, and the center of the circular plate is rotatably mounted on the fixing rod 40 .

[0068] The driving mechanism 50 includes a motor 51, a connecting rod 52 and a connecting shaft 53. The motor 51 includes an output shaft; the connecting rod 52 is vertically arranged, and one side of the circular plate is rotatably mounted on the connecting rod 52; one end of the connecting shaft 53 is mounted on the output shaft, and the other end is rotatably connected to the connecting rod.

[0069] Specifically, one side of the circular plate is rotatably mounted on the connecting rod 52 via the connecting portion 54. Figure 6 As shown, the output shaft of the motor 51 can drive the connecting shaft 53 to rotate. The position of the fixing rod 40 is fixed.

[0070] The working principle of the driving mechanism is as follows: the output shaft of the motor 51 drives the connecting rod 52 to rotate through the connecting shaft 53, thereby driving the circular plate to rotate around its center to achieve the switching of the switch plate between the first position and the second position. During the switching process between the first position and the second position, the rotation angle of the circular plate is 180°.

[0071] In some optional embodiments of the present invention, the first air outlet 13 and the second air outlet 14 both extend in a vertical direction.

[0072] In this embodiment, through the above arrangement, indoor temperature stratification can be avoided, so that the indoor temperature is uniform in the vertical direction.

[0073] In some optional embodiments of the present invention, there are two first air outlets, which are symmetrically arranged with respect to a vertical reference plane extending front to back; and there are two second air outlets, which are symmetrically arranged with respect to the reference plane.

[0074] In this embodiment, by providing two first air outlets and two second air outlets, the air supply angle range and air supply volume range of the air conditioner indoor unit can be further expanded, and the air outlet mode can be more diversified. For example: ① only the two first air outlets are used for air outlet; ② only the two second air outlets are used for air outlet; ③ one of the first air outlets and one of the second air outlets are used for air outlet; ④ the two first air outlets and the two second air outlets are used for air outlet at the same time.

[0075] Furthermore, the air conditioning indoor unit further includes an air induction partition 20 disposed between the two first air outlets 13 and between the two second air outlets 14 .

[0076] In this embodiment, when the two first air outlets and / or the two second air outlets discharge air forward, the negative pressure drives the air in the induced draft gap 20 to flow forward, so that the air is mixed with the air blown out from the air outlet. During cooling, the air outlet temperature is increased, and the wind is not too "hard", resulting in a "soft" wind effect.

[0077] In some optional embodiments of the present invention, the housing includes two air outlet columns, and the front side of each air outlet column is provided with a first air outlet 13 and a second air outlet 14. The two air outlet columns are the first air outlet column 11 and the second air outlet column 12.

[0078] In this embodiment, by setting two air outlet columns, the indoor unit of the air conditioner can have more air outlet modes. For example, one air outlet column can be selected to discharge air alone or two air outlet columns can be selected to discharge air at the same time as needed to increase the air outlet volume. For another example, the angles of the multiple air outlets are different, which can increase the air outlet angle of the indoor unit of the air conditioner. The two air outlet columns can also be set to blow out different winds, one air outlet column blows out heat exchange air, and the other air outlet column blows out non-heat exchange air (indoor air or outdoor fresh air). According to the needs of the user or the detection of the indoor environment, one air outlet column or two air outlet columns can be selected to discharge air. A variety of air outlet modes enable the indoor unit of the air conditioner to meet the various needs of the user, thereby improving the comfort of the indoor unit of the air conditioner.

[0079] When both air outlet columns blow inward, the left and right wind zones will intersect. In the interactive zone, the air volume will increase due to the simultaneous blowing of the left and right winds, which will lead to a poor user experience. In this embodiment, the breeze outlet of the first air outlet column can emit cooling breeze, and the first air outlet of the second air outlet column can emit non-heat exchange air to the first air outlet column, so as to achieve cool air delivery and improve the user experience.

[0080] Furthermore, the second air outlet 14 is located on the side of the first air outlet 13 away from the other air outlet column; the two air outlet columns are spaced apart so that the air induction interval 20 is formed between the two air outlet columns; and an air guiding device 17 for lateral and / or vertical air guiding is provided at the first air outlet.

[0081] For example, the wind guide device 17 includes a wind guide plate, the wind guide plate is used for lateral wind guidance, and there is at least one wind guide plate. Alternatively, the wind guide device 17 includes a wind guide plate and a swing blade, there is at least one wind guide plate, the wind guide plate is used for lateral wind guidance, and the swing blade is used for vertical wind guidance.

[0082] In some optional embodiments of the present invention, the air inlet interval 20 only includes an air inlet section and an air outlet section connected to each other. The width of the air outlet section gradually increases along the flow direction of the air flow. The width of the air inlet section gradually decreases along the flow direction of the air flow. The above-mentioned arrangement of the air inlet interval 20 is conducive to the air entering the rear side of the air inlet interval 20 and is also conducive to the air in the air inlet interval 20 flowing forward.

[0083] In some optional embodiments of the present invention, an indoor heat exchanger 18 and an indoor fan 19 are provided in each of the air outlet columns.

[0084] Specifically, the air conditioner indoor unit includes two indoor heat exchangers, which are arranged in parallel. The two indoor heat exchangers are connected to a flow control device, which is configured to control the two indoor heat exchangers to work simultaneously or only one of the indoor heat exchangers to work.

[0085] For example, the flow control device includes two electronic on-off valves, which are respectively connected in series with the corresponding indoor heat exchangers. The electronic on-off valves are connected in series with the heat exchanger to control the on-off of the working medium flow path in the heat exchanger, and the execution action is stable and reliable.

[0086] Furthermore, in some optional embodiments of the present invention, two air outlet columns 10 are symmetrically arranged about a vertical reference plane extending forward and backward. The symmetrically arranged air outlet columns 10 make the vertical air conditioner indoor unit look stable and in line with the aesthetic taste of Chinese people.

[0087] In some optional embodiments of the present invention, the indoor unit is a vertical air conditioner indoor unit. In some alternative embodiments, the indoor unit is a wall-mounted air conditioner indoor unit.

[0088] At this point, those skilled in the art should recognize that, although multiple exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications that conform to the principles of the present invention can still be directly determined or derived based on the content disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the scope of the present invention should be understood and recognized as covering all these other variations or modifications.

Claims

1. An air conditioner indoor unit, characterized in that: include: A shell, wherein a first air outlet and a second air outlet are provided on the front side of the shell, an air outlet duct and a bypass air duct are provided in the shell, an air outlet end of the air outlet duct is the first air outlet, an air outlet end of the bypass air duct is the second air outlet, and an air inlet end of the bypass air duct is connected to the air outlet duct; A switch plate, wherein the switch plate is provided with a connecting hole; the plane where the air inlet end of the bypass air duct is located is a first plane, and the switch plate is always on the first plane when working, and is movably arranged at the air inlet end of the bypass air duct to change the angle between the axis of the connecting hole and the first plane.

2. The air conditioner indoor unit according to claim 1, characterized in that: The switch plate has a first position and a second position; The connecting hole has a first end facing the bypass air duct and a second end facing the air outlet duct. In a first position, the first end is located in front of the second end; in a second position, the first end is located behind the second end.

3. The air conditioner indoor unit according to claim 1, characterized in that: The second air outlet is a breeze outlet.

4. The air conditioner indoor unit according to claim 1, characterized in that: The communicating holes are micropores.

5. The air conditioner indoor unit according to claim 2, characterized in that: The switch plate is rotatably arranged around an axis perpendicular to the first plane.

6. The air conditioner indoor unit according to claim 1, characterized in that: The air inlet end of the bypass air duct extends along a preset direction; There are multiple switch plates, and the multiple switch plates are arranged along the preset direction; A plurality of the switch plates move synchronously, or at least one of the switch plates moves individually.

7. The air conditioner indoor unit according to claim 1, characterized in that: It also includes a fixing rod and a driving mechanism extending in a preset direction; the driving mechanism is used to drive the switch plate to move; The switch plate is a circular plate, and the center of the circular plate is rotatably mounted on the fixing rod; as well as The driving mechanism comprises: a motor, the motor comprising an output shaft; A connecting rod, the connecting rod is vertically arranged, and one side of the circular plate is rotatably mounted on the connecting rod; A connecting shaft, one end of which is mounted on the output shaft, and the other end of which is rotatably connected to the connecting rod.

8. The air conditioner indoor unit according to claim 1, characterized in that: The first air outlet and the second air outlet both extend in a vertical direction; There are two first air outlets, which are symmetrically arranged with respect to a vertical reference plane extending front to back; and There are two second air outlets, which are symmetrically arranged with respect to the reference plane; The air conditioner indoor unit further includes an air induction partition arranged between the two first air outlets and between the two second air outlets.

9. The air conditioner indoor unit according to claim 1, characterized in that: The shell includes two air outlet columns, and a first air outlet and a second air outlet are provided on the front side of each of the air outlet columns.

10. The air conditioner indoor unit according to claim 9, characterized in that: The second air outlet is located on a side of the first air outlet away from the other air outlet column; The two air outlet columns are spaced apart so that the air induction interval is formed between the two air outlet columns; The first air outlet is provided with an air guiding device for guiding the air horizontally and / or vertically.

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