Wall-mounted air conditioner indoor unit

Abstract

The present invention provides a wall-mounted air conditioner indoor unit, comprising: a shell, an evaporator, a fan and a drainage part, wherein the drainage part is arranged on both sides and below the air supply port on the shell; wherein the drainage part comprises a first drainage part and a second drainage part; the first drainage part allows the indoor air behind the shell to flow to the air supply port through the first drainage groove, mix with the heat exchange wind to form a mixed flow wind and blow into the room again; the second drainage part allows the indoor air below the shell to flow to the air supply port through the second drainage groove, mix with the heat exchange wind to form a mixed flow wind and blow into the room again; the first drainage groove and the second drainage groove are connected to each other. The first drainage part and the second drainage part jointly form a plug-in type interconnected full drainage port, which increases the air mixing area, makes the mixed air more uniform, and increases the drainage amount.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a wall-mounted air conditioning indoor unit. Background Art

[0002] With the popularity of air conditioners, users have higher and higher requirements for the comfort and health of air supply. Traditional air conditioners have strong air supply, and the cold wind blows directly on people. Air-conditioning disease is the biggest problem for users when using air conditioners. Through the continuous innovation of air conditioning technology, jet technology and drainage technology have emerged, bringing the concept of healthy air supply that is cool but not cold. However, the existing technology still has certain limitations, such as small air intake volume, single air mixing direction, and uneven air mixing, which leads to poor experience when users use the healthy function of air conditioners that is cool but not cold, and fail to achieve the effect of cool but not cold air supply.

[0003] Furthermore, generally, the efficiency of both sides of the cross-flow fan, which is the air supply fan of the indoor unit, is low, resulting in a small air supply volume on both sides when the indoor unit supplies air. Summary of the invention

[0004] An object of the present invention is to provide a wall-mounted air conditioner indoor unit that overcomes the above problems or at least partially solves the above problems.

[0005] A further object of the present invention is to increase the air supply volume.

[0006] Another further object of the invention is to improve user comfort.

[0007] In particular, the present invention provides a wall-mounted air conditioner indoor unit, comprising:

[0008] The housing has an air inlet on the top and at least two air outlets on the bottom front side extending in a lateral direction and facing forward and downward;

[0009] The evaporator is arranged in the shell and is used to perform heat exchange with the air flowing in from the air inlet to form heat exchange wind;

[0010] A fan configured to force heat exchange air to flow from the evaporator to the air outlet;

[0011] At least one fan, each fan correspondingly provided with an air outlet and configured to force heat exchange air to flow from the evaporator to the corresponding air outlet;

[0012] The drainage part is arranged between and below the air supply outlet; wherein

[0013] The drainage portion includes a first drainage portion and a second drainage portion;

[0014] The first air guide portion includes at least one first air guide groove, which is composed of interval gaps formed between the air supply ports, so as to allow the indoor air behind the shell to flow to the air supply ports through the first air guide grooves, mix with the heat exchange air to form mixed flow air and blow into the room again;

[0015] The second air guide portion includes an air guide plate, which is arranged below the bottom of the shell and extends in the transverse direction along its length direction, and defines a second air guide groove with the bottom of the shell to allow the indoor air at the rear and lower part of the shell to flow to the air supply port through the second air guide groove, and mix with the heat exchange air to form a mixed flow and blown into the room again;

[0016] The first air induction groove and the second air induction groove are communicated with each other.

[0017] Preferably, the connecting members are symmetrically distributed on both sides of the lower portion of the housing;

[0018] One end of each connecting piece is connected to the lower part of the shell, and the other end is connected to the upper front part of the guide plate.

[0019] Preferably, the cross section of the guide plate is elliptical, and the major axis of the elliptical cross section extends obliquely upward from front to rear relative to the shell.

[0020] Preferably, the lateral width of the second air induction groove is greater than the sum of the lateral widths of the first air induction groove and the air supply port.

[0021] Preferably, the two side walls of the first air induction slot include an air supply section extending smoothly forward from the rear end and an air guide section extending obliquely from the front end of the air supply section to the front end of the first air induction slot toward the air supply port side;

[0022] The horizontal distance of the air guide section is 3 to 5 cm.

[0023] Preferably, the ratio of the lateral width of the first air inlet groove to the lateral width of the air outlet is 1:10 to 1:5, and

[0024] The longitudinal width of the second air induction groove is smaller than the longitudinal opening width of the air supply port.

[0025] Preferably, the number of fans is 2 to 4.

[0026] Preferably, each fan is coaxially arranged along the transverse direction of the wall-mounted air conditioner indoor unit and has the same diameter.

[0027] Preferably, the connecting member drives the guide plate to rotate around a rotation axis parallel to the transverse direction of the shell, and rotates synchronously with the air guide plate, so that the air inlet direction of the second air inlet groove is parallel to the air supply direction of the air supply port.

[0028] Preferably, the fan is a cross-flow fan with a central rotation axis extending transversely; and

[0029] The evaporator is a three-stage evaporator covering the space in front of and above the crossflow fan.

[0030] The wall-mounted air-conditioning indoor unit provided by the present invention has a drainage portion arranged around the air supply outlet of the indoor unit, and the drainage portion includes a first drainage portion and a second drainage portion; the first drainage portion includes at least one first drainage groove to allow the indoor air behind the shell to flow to the air supply outlet through the first drainage groove, mix with the heat exchange air to form a mixed flow wind and blow into the room again; the second drainage portion includes a drainage plate, and the drainage plate is arranged below the bottom of the shell in a transversely extending length direction, and defines a second drainage groove with the bottom of the shell to allow the indoor air below the shell to flow to the air supply outlet through the second drainage groove, mix with the heat exchange air to form a mixed flow wind and blow into the room again; the first drainage portion and the second drainage portion together form a plug-in connected full drainage outlet, which increases the drainage and mixing area, makes the mixed air more uniform, and increases the drainage amount.

[0031] Furthermore, in the wall-mounted air-conditioning indoor unit provided by the present invention, the first air duct interrupts the main airflow to form an inserted air duct, and at the same time a second air duct connected to the plug-in air duct is formed at the lower part of the air supply port to form a connected negative pressure area, which can greatly increase the drainage volume, while increasing the drainage area, and improving the uniformity of mixed air, bringing users a truly cool but not cold and comfortable experience. The technical solution provided by the present invention not only has good feasibility and economic value, but also has promotion value.

[0032] 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

[0033] 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:

[0034] Figure 1 is a structural schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0035] Figure 2 yes Figure 1 A schematic side view of a wall-mounted air conditioner indoor unit is shown;

[0036] Figure 3 yes Figure 1 A side sectional view of the indoor unit of the wall-mounted air conditioner shown;

[0037] Figure 4 yes Figure 1 Schematic diagram of gas flow of the indoor unit of the wall-mounted air conditioner shown. DETAILED DESCRIPTION

[0038] Refer to the following Figures 1 to 4 The wall-mounted air conditioner indoor unit 10 of the embodiment of the present invention is described. In the following description, 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 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.

[0039] Figure 1 is a schematic structural diagram of a wall-mounted air conditioner indoor unit 10 according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic side view of a wall-mounted air conditioner indoor unit 10 is shown; Figure 3 yes Figure 1 A side sectional view of the wall-mounted air conditioner indoor unit 10 is shown; Figure 4 yes Figure 1 The schematic diagram of the gas flow of the wall-mounted air conditioner indoor unit 10 is shown, and the flow direction of the indoor gas is shown by the arrow. The wall-mounted air conditioner indoor unit 10 generally may include a housing 100, an evaporator 200, a fan 300 and a drainage part 400. The wall-mounted air conditioner indoor unit 10 and the air conditioner outdoor unit (not shown in the figure) together constitute a vapor compression refrigeration cycle system to achieve cooling / heating of the indoor environment. The top of the housing 100 has an air inlet 120, and the bottom front side has at least two air supply ports 110 extending in the lateral direction toward the front and bottom. The air inlet 120 is used to allow the air of the indoor environment to enter the interior of the housing 100, and the air supply port 110 is used to supply air to the indoor environment. The housing 100 may be a long strip structure extending in the lateral direction (i.e., the left and right direction). The air supply port 110 may be a long strip opening diffracted in the lateral direction. When the air supply port 110 is opened at the bottom of the housing 100 and faces the front and bottom, it is convenient for the wall-mounted air conditioner indoor unit 10 to be installed on the wall to supply air downward.

[0040] The evaporator 200 is disposed in the housing 100 and is used to perform heat exchange with the air entering the housing 100 from the air inlet 120 to form heat exchange wind (specifically, cooling during cooling and heating during heating).

[0041] A main air duct is provided in the housing 100, and the front edge of the main air duct forms an air outlet 110. The main air duct is used to guide the heat exchange air from the evaporator 200 to the air outlet 110, and blow air into the room to achieve cooling / heating.

[0042] The fan 300 is disposed in the main air duct and is configured to promote air flow from the evaporator 200 to the air outlet 110, that is, to provide power for the air to blow from the air outlet 110 into the room. The fan 300 is preferably a cross-flow fan whose central rotation axis extends in the lateral direction. The evaporator 200 is preferably a three-stage evaporator covering the space in front of and above the cross-flow fan, and further, it can be a finned evaporator.

[0043] The number of fans 300 may be one or more. In the present invention, the number of fans 300 is preferably 2 to 4. Furthermore, the fan 300 is a cross-flow fan, and the air supply port 110 of the indoor unit 10 corresponds to the air outlet of the volute of the cross-flow fan. When the number of fans 300 is one, the corresponding air supply port 110 may be multiple, each air supply port 110 is arranged at intervals, and the air outlet of the volute of the fan 300 corresponds to the multiple air supply ports 110 of the indoor unit 10; when the number of fans 300 is multiple, preferably 2 to 4, each fan 300 may correspond to an air supply port 110, and the air outlet of the volute of the fan 300 corresponds to the air supply port 110 of the indoor unit 10 one by one. Of course, the number of air supply ports 110 may be greater than the number of fans 300.

[0044] Preferably, each fan 300 is coaxially arranged along the transverse direction of the wall-mounted air-conditioning indoor unit 10 and has the same diameter; the transverse width distance of each air supply outlet 110 is the same, which not only realizes uniform air supply but also ensures the overall beauty of the indoor unit 10.

[0045] In the prior art, the indoor hanging unit has problems such as small air intake volume, single air mixing direction, and uneven air mixing.

[0046] In view of the above technical problems, the present invention provides a technical solution of adding a drainage part 400. Specifically, the drainage part 400 is arranged between and below the air supply port 110, and includes a first drainage part and a second drainage part, wherein:

[0047] The first air guide portion includes at least one first air guide groove 410. The first air guide groove 410 is formed simultaneously with the shell 100, that is, it is obtained by deforming the shell 100. The first air guide groove 410 is composed of a gap formed by the air supply port 110 to allow the indoor air behind the shell 100 to flow to the air supply port 110 through the first air guide groove 410, and mix with the heat exchange air to form a mixed flow and blow into the room again.

[0048] The second air inlet groove 430 is composed of the interval gap formed by the air supply port 110 to allow the indoor air behind the shell 100 to flow to the air supply port 110 through the second air inlet groove 430, mix with the heat exchange air to form mixed flow air and blow into the room again, thereby realizing the diversification of the mixed air direction and making the mixed air more uniform.

[0049] A first air induction groove 410 is provided at the intervals between the independent air supply outlets 110, and the high-speed airflow between the two adjacent air supply outlets 110 forms a strong negative pressure at the intervals between the air supply outlets 110, thereby forming a drainage airflow. When the air conditioner is cooling, the drainage airflow at the intervals is interspersed inside the cold air flow column, and air mixing and temperature exchange are directly performed inside the wind column, thereby forming a uniform mixed air column that is cool but not cold. Since a strong negative pressure is formed at the intervals, a high-speed drainage airflow with a large air volume can be formed. Therefore, the technical solution of this embodiment can not only realize the interspersed and full mixing of cold and hot air flows, but also greatly increase the drainage volume, thereby enhancing the user's comfortable air supply experience of being cool but not cold.

[0050] The second guide part includes a guide plate 420, which is arranged below the bottom of the shell 100 and extends laterally in the length direction, and defines a second air guide groove 430 with the bottom of the shell 100 to allow the indoor air below the shell 100 to flow to the front of the air supply port 110 through the second air guide groove 430, mix with the heat exchange air to form a mixed flow and blow into the room again.

[0051] A second air induction slot 430 is added below the air supply port 110 so that the heat exchange air is fully mixed with the indoor air in its main air supply direction.

[0052] As shown in FIG4 , the first air induction groove 410 and the second air induction groove 430 are connected to each other, so that the air in the room flows continuously and the air supply is more uniform. Figure 4 The direction of the air flow in the air duct and the air supply port 110 is intuitively shown.

[0053] The first air induction groove 410 is located between the air outlets 110, and the third air induction groove is located at the lower part of the air outlet 110. The air induction part is composed of the first air induction groove 410 at the interval of the air outlet and the second air induction groove 430 at the lower part of the air outlet 110. The first air induction groove 410 and the second air induction groove 430 are interconnected to form a plug-in type interconnected full air induction port. The heat exchange airflow at the air outlet 110 forms an interconnected negative pressure zone in the surrounding area of ​​each independent air outlet 110. For the indoor unit 10, the first air induction groove 410 interrupts the main airflow to form an inserted air induction. At the same time, the second air induction groove 430 is set below the air outlet 110 to form a complete interconnected negative pressure zone, which can greatly increase the drainage volume, increase the drainage area, improve the uniformity of the mixed air, and bring users a truly cool and comfortable experience. The technical solution of the present invention not only has good feasibility and economic value, but also has promotion value.

[0054] In cooling mode, the temperature of the mixed air is higher than that of the heat exchange air, and in heating mode, the temperature of the mixed air is lower than that of the heat exchange air. The present invention can prevent the heat exchange air with too low or too high temperature from blowing toward the human body, causing human discomfort. In short, the air conditioner indoor unit 10 blows the mixed air into the room, which will make the wind softer, improve the comfort of the air supply, and improve the user's wind feeling experience. At the same time, because the additional indoor air is mixed with the heat exchange air, the total air volume of the air supply port 110 is increased, which speeds up the cooling / heating speed.

[0055] On the other hand, in order to better connect the guide plate 420 with the indoor unit 10, the wall-mounted air-conditioning indoor unit 10 also includes connecting parts 500, which are symmetrically distributed on both sides of the lower part of the shell 100, and one end of each connecting part 500 is connected to the lower part of the shell 100, and the other end is connected to the front upper part of the guide plate 420.

[0056] Both ends of the connecting member 500 are connected to a synchronous drive motor (not shown in the figure). The connecting member 500 drives the guide plate 420 to rotate around a horizontal rotation axis parallel to the shell 100, and rotates synchronously with the air guide plate 600 to make the air inlet direction of the third air inlet groove parallel to the air supply direction of the air supply port 110.

[0057] In this embodiment, the preferred position of the air guide plate 600 is to make the air inlet direction of the second air inlet groove 430 parallel to the air supply direction of the air supply port 110. If the air inlet direction of the second air inlet groove 430 is not parallel or not nearly parallel to the air supply direction of the air supply port 110, the indoor air inlet and the heat exchange air cannot be completely evenly mixed, stable air supply cannot be achieved, and a good experience cannot be provided to the user.

[0058] In order to better guide the flow, the present invention designs the guide plate 420 to have an elliptical cross section, and the major axis of the elliptical cross section extends upward from the front to the rear relative to the housing 100. In this way, the air at the rear and lower part of the housing 100 can first flow upward along the narrow side of the ellipse, and then flow downward along the wide side, so as to merge with the heat exchange wind more smoothly. This also makes the appearance of the air conditioner indoor unit 10 more beautiful.

[0059] In some preferred embodiments, the lateral width of the second air induction slot 430 is greater than the sum of the lateral width of the first air induction slot 410 and the lateral width of the air supply port 110. The air mixing volume and air mixing effect are maximized by increasing the air mixing area to the maximum extent.

[0060] Preferably, the ratio of the lateral width of the first air induction groove 410 to the lateral width of the air supply port 110 is 1:10 to 1:5. The appropriate lateral width of the first air induction groove 410 is selected so that the heat exchange air from the air supply port 110 accounts for most of the air supplied to the room, so as to ensure the stability of the indoor temperature. Furthermore, an appropriate amount of indoor air is introduced to mix with the heat exchange air, so that the air supplied to the room is cool but not cold, and the air is supplied gently, thereby improving the user's comfort. Furthermore, the longitudinal width of the second air induction groove 430 is smaller than the longitudinal opening width of the air supply port 110, so that the air intake of the second air induction groove 430 is smaller than the heat exchange air from the air supply port 110, which not only ensures the stability of the indoor temperature, but also provides the user with a cool but not cold air supply experience.

[0061] In some preferred embodiments, the upper portion of the first air induction groove 410 extends from the rear to the front in an arc shape along the housing 100. Further, in the process of extending from the rear to the front, the two side walls of the first air induction groove 410 include an air supply section extending smoothly from the rear end to the front and an air guide section extending obliquely from the front end of the air supply section to the front end of the first air induction groove 410 toward the air supply port 110.

[0062] During the formation of the first air induction groove 410, the shape of the first air induction groove 410 is ensured to be arranged along the flow direction of the airflow as much as possible. The upper part of the first air induction groove 410 extends in an arc shape, which helps the air at the rear side of the indoor unit 10 to flow to the front side of the indoor unit 10 and reduces the resistance to air flow. An air supply section and an air guide section are formed on the side wall of the first air induction groove 410, wherein the air supply section helps to change the flow direction of the airflow delivered to the front of the indoor unit 10, and the air guide section helps to make the airflow flow more toward the direction of the air supply port 110 of the indoor unit 10, and be fully mixed with the heat exchange gas and delivered to the room. The air supply section and the air guide section further help to reduce wind noise.

[0063] Preferably, in order to achieve a better wind guiding effect, the horizontal distance of the wind guiding section is 3 to 5 cm. If the horizontal distance of the wind guiding section is too short, it cannot achieve a good wind guiding effect on the airflow, and the wind-inducing airflow of the first wind-inducing slot 410 is easily dispersed before it meets the main airflow, and the wind noise is large during its flow, and the mechanical energy loss is large, and a good air mixing effect cannot be achieved.

[0064] In order to make the first air induction slot 410 better achieve air induction, the mechanical energy loss is reduced to the lowest point during the air induction process. Figure 3 As shown, the bottom surface of the housing 100 includes: a horizontal section 130 extending forward from the rear end of the bottom of the housing 100, an inclined section 140 extending forward and upward from the front end of the horizontal section 130 to the lower edge of the air outlet 110, and a deflection section 150 extending forward and downward from the front end of the inclined section 140 along the lower edge of the air outlet 110. The distance from the front end of the deflection section 150 to the front end of the upper edge of the air outlet 110 is equal to the longitudinal width of the air guide plate 600 of the indoor unit 10.

[0065] The indoor air flows along the bottom surface of the shell 100, and turns after passing through the deflection section 150 to be consistent with the flow direction of the heat exchange wind, thereby reducing the noise generated when the two flows merge.

[0066] 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. A wall-mounted air conditioner indoor unit, comprising: The housing has an air inlet on the top and at least two air outlets on the bottom front side extending in a lateral direction and facing forward and downward; A main air duct is arranged in the shell, and the front edge of the main air duct constitutes the air supply port; an evaporator, disposed in the housing, and used for performing heat exchange with the air flowing in from the air inlet to form heat exchange wind; A fan configured to cause the heat exchange air to flow from the evaporator to the air outlet; At least one fan, each of which is provided with the air outlet corresponding to the fan and is configured to force the heat exchange air to flow from the evaporator to the corresponding air outlet; The drainage part is arranged between and below the air supply ports; wherein The drainage portion includes a first drainage portion and a second drainage portion; The first air guide portion includes at least one first air guide groove, which is composed of interval gaps formed between the air supply ports, so as to allow the indoor air behind the shell to flow to the air supply ports through the first air guide grooves, mix with the heat exchange air to form mixed flow air and blow into the room again; The second air guide portion includes an air guide plate, which is arranged below the bottom of the shell and extends in the transverse direction along its length direction, and defines a second air guide groove with the bottom of the shell to allow the indoor air at the rear and lower part of the shell to flow to the air supply port through the second air guide groove, and mix with the heat exchange air to form a mixed flow and blown into the room again; The first air induction groove and the second air induction groove are connected to each other to form a plug-in type interconnected full-drainage port; The wall-mounted air conditioner indoor unit also includes: Connectors are symmetrically distributed on both sides of the lower portion of the housing; One end of each of the connecting members is connected to the lower part of the shell, and the other end is connected to the upper front part of the guide plate; The connecting member drives the guide plate to rotate around a rotation axis parallel to the transverse direction of the shell, and rotates synchronously with the air guide plate, so that the air induction direction of the second air induction groove is parallel to the air supply direction of the air supply port.

2. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The cross section of the guide plate is elliptical, and the major axis of the elliptical cross section extends obliquely upward from front to rear relative to the shell.

3. The wall-mounted air conditioner indoor unit according to claim 1, wherein: A transverse width of the second air induction groove is greater than a sum of transverse widths of the first air induction groove and the air supply port.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The two side walls of the first air induction slot include an air supply section extending smoothly forward from the rear end and an air guide section extending obliquely from the front end of the air supply section to the front end of the first air induction slot toward the air supply port side; The horizontal distance of the air guide section is 3-5 cm.

5. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The ratio of the lateral width of the first air inlet groove to the lateral width of the air outlet is 1:10 to 1:5, and The longitudinal width of the second air induction groove is smaller than the longitudinal opening width of the air supply port.

6. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The number of the fans is 2 to 4.

7. The wall-mounted air conditioner indoor unit according to claim 6, wherein: Each of the fans is coaxially arranged along the transverse direction of the wall-mounted air conditioner indoor unit and has the same diameter.

8. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The fan is a cross-flow fan with a central rotation axis extending laterally; and The evaporator is a three-stage evaporator covering the space in front of and above the cross-flow fan.

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