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 U-shaped fully enclosed 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 an air outlet 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] The drainage part is arranged on both sides and below the air supply port; wherein

[0012] The drainage portion includes a first drainage portion and a second drainage portion;

[0013] The first air guide portion includes at least one first air guide groove, which is composed of gaps formed laterally at the end of the air supply port and at both sides of the shell, so as to allow the indoor air behind the shell to flow to the air supply port through the first air guide groove, mix with the heat exchange air to form mixed flow air and blow into the room again;

[0014] 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 below 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;

[0015] The first air induction groove and the second air induction groove are communicated with each other.

[0016] Preferably, the wall-mounted air conditioner indoor unit further includes:

[0017] Connectors are symmetrically distributed on both sides of the lower part of the shell;

[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 first air induction groove and the lateral width of the air supply port are equal to the lateral width of the second air induction groove.

[0021] Preferably, the first air induction groove is formed by extruding the lower part of the shell.

[0022] 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

[0023] The longitudinal width of the second air induction groove is smaller than the longitudinal opening width of the air supply port.

[0024] Preferably, the bottom surface of the housing comprises:

[0025] A horizontal section extending forward from the rear end of the bottom of the housing;

[0026] An inclined section extending forward and upward from the front end of the horizontal section to the lower edge of the air outlet; and

[0027] A deflection section extends forward and downward from the front end of the inclined section along the lower edge of the air supply port.

[0028] Preferably, the distance from the front end of the deflection section to the front end of the upper edge of the air supply outlet is equal to the longitudinal width of the air guide plate of the indoor unit.

[0029] 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.

[0030] Preferably, the fan is a cross-flow fan with a central rotation axis extending transversely; and

[0031] The evaporator is a three-stage evaporator covering the space in front of and above the crossflow fan.

[0032] The wall-mounted air-conditioning indoor unit provided by the present invention has a guide portion arranged around the air supply outlet of the indoor unit, and the guide portion includes a first guide portion and a second guide portion; the first guide portion includes at least one first guide groove to allow the indoor air behind the shell to flow to the air supply outlet through the first guide groove, mix with the heat exchange air to form a mixed flow wind that is blown into the room again; the second guide portion includes a guide plate, and the guide plate is arranged below the bottom of the shell in a transversely extending length direction, and defines a second guide 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 guide groove, mix with the heat exchange air to form a mixed flow wind that is blown into the room again; the first guide portion and the second guide portion together form a U-shaped fully enclosed full guide outlet, which increases the guide and mixed air area, makes the mixed air more uniform, and increases the guide volume.

[0033] Furthermore, in the wall-mounted air-conditioning indoor unit provided by the present invention, the first drainage part brings drainage volume to both sides of the indoor unit air supply outlet, thereby increasing the indoor unit air supply volume and fully mixing the gas after heat exchange with the indoor air, thereby enhancing the user's comfortable air supply experience of being cool but not hot.

[0034] 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

[0035] 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:

[0036] Figure 1 is a structural schematic diagram of a wall-mounted air conditioner indoor unit according to an embodiment of the present invention;

[0037] Figure 2 yes Figure 1 A schematic side view of a wall-mounted air conditioner indoor unit is shown;

[0038] Figure 3 yes Figure 1 A side sectional view of the indoor unit of the wall-mounted air conditioner shown;

[0039] Figure 4 yes Figure 1 Schematic diagram of gas flow of the indoor unit of the wall-mounted air conditioner shown. DETAILED DESCRIPTION

[0040] Refer to the following Figures 1 to 4The 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.

[0041] 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 includes 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 an air supply port 110 extending toward the front and bottom and in the lateral direction. 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 can be a long strip structure extending in the lateral direction (i.e., the left and right direction). The air supply port 110 can 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.

[0042] 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).

[0043] The housing 100 is provided with a main air duct, 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.

[0044] The fan 300 is disposed in the main air duct and is configured to cause the pressurized air to 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.

[0045] The number of the fan 300 may be one or more. In the present invention, it is preferred that the number of the fan 300 is one. 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 cross-flow fan volute.

[0046] In the prior art, the efficiency on both sides of the cross-flow fan is low, and the negative pressure formed by the air volume on both sides of the corresponding air outlet 110 is small, and severe backflow will be formed on both sides of the air outlet 110 corresponding to the cross-flow fan.

[0047] Furthermore, in the prior art, the indoor hanging unit has problems such as small air intake volume, single air mixing direction, and uneven air mixing.

[0048] 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 on both sides and below the air supply port 110, and includes a first drainage part and a second drainage part, wherein:

[0049] The first air inlet portion includes at least one first air inlet groove 410, which is composed of a gap formed laterally at the end of the air supply port 110 and on both sides of the shell 100, so as to allow the indoor air behind the shell 100 to flow to the air supply port 110 through the first air inlet groove 410, mix with the heat exchange air to form a mixed flow wind and blow into the room again.

[0050] The first air induction groove 410 is formed at the same time as the shell 100, that is, it is obtained by deforming the shell 100 formation process, and the number of the first air induction groove 410 can be one or two. When the number of the first air induction groove 410 is one, it is set on one side of the air supply port 110, so that the indoor air on one side behind the shell 100 flows to the air supply port 110 through the first air induction groove 410, mixes with the heat exchange air to form mixed flow air and blows into the room again, to a certain extent, increases the air induction volume of the indoor hanging unit, realizes the diversification of the mixed air direction, and makes the mixed air more uniform.

[0051] However, in the present invention, preferably, there are two first air induction grooves 410, which are respectively located on both sides of the air supply port 110. Then, the two symmetrical first air induction grooves 410 will cause the indoor air on both sides of the rear of the shell 100 to flow to the air supply port 110 through the first air induction grooves 410, mix with the heat exchange air to form mixed flow air and blow into the room again, thereby increasing the air intake volume of the indoor hanging unit, realizing the diversification of the mixed air direction, making the mixed air more uniform, and further evenly delivered to the room.

[0052] A first air induction groove 410 is added on both sides of the air supply port 110 to increase the mixed air volume on both sides of the air supply port 110, further increase the air supply volume on both sides of the air supply port 110, reduce the confluence on both sides, and thus overcome the problem of small air supply volume on both sides caused by low efficiency on both sides of the cross-flow fan.

[0053] 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.

[0054] 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.

[0055] As shown in FIG4 , the lower part of the first air induction groove 410 is connected to the second air induction groove 430 , 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.

[0056] The first air induction groove 410 is located on the side of the air supply port 110, and the second air induction groove 430 is located at the lower part of the air supply port 110. When the heat exchange air is blown out from the air supply port 110, the heat exchange air flow at the air supply port 110 forms an embracing negative pressure in the area around the three-dimensional air supply port 110, and the indoor air in the air induction part is sucked into the cold air flow through the air induction grooves on the left and right sides and the drainage channel of the lower drainage port, and is blown out after mixing; because this full air induction design can form an embracing negative pressure air induction, the air induction mixing area is larger, the air mixing is more uniform, and the induction volume is larger, which improves the user's comfortable air supply experience of being cool but not cold;

[0057] 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.

[0058] 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.

[0059] A synchronous drive motor (not shown in the figure) is connected to both ends of the connecting member 500, which 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, so that the air inlet direction of the second air inlet groove 430 is parallel to the air supply direction of the air supply port 110.

[0060] 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.

[0061] 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.

[0062] In some preferred embodiments, the sum of the lateral distance of the first air induction slot 410 and the lateral distance of the air supply port 110 is equal to the lateral distance of the second air induction slot 430. The air mixing volume and air mixing effect are maximized by increasing the air mixing area to the maximum extent.

[0063] 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, 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.

[0064] In order to make the air induction slots 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 an air outlet on the bottom front side extending in a lateral direction and facing forward and downward; 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; The drainage part is arranged on both sides and below the air supply port; 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 gaps formed laterally at the end of the air supply port and at both sides of the shell, so as to allow indoor air behind the shell to flow to the air supply port through the first air guide groove, 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 below 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; 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; Synchronous drive motors are connected to both ends of the connecting member; the connecting member drives the guide plate to rotate around a rotation axis parallel to the horizontal 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.

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: The lateral width of the first air induction groove and the lateral width of the air supply port are equal to the lateral width of the second air induction groove.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The first air induction groove is formed by extruding the lower part of the shell.

5. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The ratio of the lateral width of the first air induction groove to the lateral width of the air supply port 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 bottom surface of the housing comprises: A horizontal section extending forward from the rear end of the bottom of the housing; An inclined section extending forward and upward from the front end of the horizontal section to the lower edge of the air supply port; and A deflection section extends forward and downward from the front end of the inclined section along the lower edge of the air supply port.

7. The wall-mounted air conditioner indoor unit according to claim 6, wherein: The distance from the front end of the deflection section to the front end of the upper edge of the air supply port is equal to the longitudinal width of the air guide plate of the indoor unit.

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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