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 at the rear side or rear of the shell to flow to the air supply port through the first drainage groove or the second drainage groove respectively, and mixes with the heat exchange wind to form a mixed flow wind and blows into the room again; the second drainage part allows the indoor air below the shell to flow to the air supply port through the third drainage groove, and mixes with the heat exchange wind to form a mixed flow wind and blows into the room again; the first drainage groove, the second drainage groove and the third drainage groove are connected to each other. The first drainage part and the second drainage part jointly form a plug-in type 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 increasing popularity of air conditioning, users are demanding increasingly comfortable and healthy airflow. Traditional air conditioners deliver strong, cold air that blows directly on people, leading to air conditioning sickness, a major problem for users. Continuous innovation in air conditioning technology has led to the emergence of jet and drainage technologies, bringing the concept of healthy, cool airflow without being too cold. However, existing technologies still have limitations, such as low induced air volume, a single air mixing direction, and uneven air mixing. This results in a poor user experience when using the air conditioner's healthy, cool airflow feature, failing to achieve the desired effect.

[0003] The existing air flow solutions have a small air flow volume, draw air from the periphery of the air outlet, have a single air flow direction, poor air mixing uniformity, and poor user experience. 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 and multi-directional air induction.

[0006] Another further object of the present 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 front side of the bottom facing forward and downward and extending in a transverse direction;

[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 corresponding to 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 on both sides and below the air 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 and a second air guide groove. The first air guide groove is composed of a gap formed laterally at the end of the air supply port and on both sides of the shell. The second air guide groove is composed of a gap formed by the air supply port, so as to allow indoor air from the rear side or rear of the shell to flow to the air supply port through the first air guide groove and the second air guide groove respectively, and to be mixed with the heat exchange air to form a mixed flow and then blown into the room.

[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. The air guide plate and the bottom of the shell define a third air guide slot, so that the indoor air below the shell can flow to the air supply port through the third air guide slot, mix with the heat exchange air to form a mixed flow, and then be blown into the room.

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

[0017] Preferably, the wall-mounted air conditioner indoor unit further includes:

[0018] Connectors are symmetrically distributed on both sides of the lower part of the shell;

[0019] 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.

[0020] 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.

[0021] Preferably, the lateral widths of the first and second air induction grooves and the air supply port are equal to the lateral width of the third air induction groove.

[0022] Preferably, the first air induction groove and the second air induction groove are formed by extruding the lower part of the shell.

[0023] Preferably, the ratio of the lateral width of the first air induction groove or the second air induction groove to the lateral width of the air supply port is 1:10 to 1:5, and

[0024] The longitudinal width of the third 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 third 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 cross-flow fan.

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

[0031] 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 outlet, thereby increasing the indoor unit air supply volume and fully mixing the gas after heat exchange with the indoor air, thereby improving the user's comfortable air supply experience of coolness rather than heat.

[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 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 the wall-mounted air conditioner indoor unit is shown;

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

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

[0038] Refer to the following Figures 1 to 4The following describes a wall-mounted air conditioner indoor unit according to an embodiment of the present invention. In the following description, terms such as "front," "rear," "upper," "lower," "top," "bottom," "inner," "outer," and "lateral" indicate positions or relationships based on those shown in the accompanying drawings. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0039] Figure 1 is a structural diagram of a wall-mounted air-conditioning indoor unit 10 according to an embodiment of the present invention; Figure 2 yes Figure 1 A schematic side view of the 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 diagram below shows a schematic diagram of the air flow of a wall-mounted air conditioner indoor unit 10, with the direction of indoor air flow indicated by the arrows. The wall-mounted air conditioner indoor unit 10 generally includes a housing 100, an evaporator 200, a fan 300, and a flow guide 400. Together with an outdoor air conditioner (not shown), the wall-mounted air conditioner indoor unit 10 forms a vapor compression refrigeration cycle system, achieving cooling / heating of the indoor environment. The housing 100 has an air inlet 120 at the top and at least two air outlets 110 extending laterally and facing forward and downward at the bottom front side. The air inlet 120 allows air from the indoor environment to enter the housing 100, while the air outlets 110 supply air to the indoor environment. The housing 100 can be a long, strip-shaped structure extending laterally (i.e., left and right). The air outlets 110 can be long, strip-shaped openings extending laterally. The air outlets 110 are located at the bottom of the housing 100 and face forward and downward to facilitate downward air flow when the wall-mounted air conditioner indoor unit 10 is mounted on a wall.

[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] The housing 100 is provided with a main air duct, the front edge of which forms an air outlet 110. The main air duct is used to guide heat exchange air from the evaporator 200 to the air outlet 110, blowing air into the room to achieve cooling / heating.

[0042] The fan 300 is disposed within the main air duct and is configured to force air from the evaporator 200 to the air outlet 110, thereby providing power for the air to flow from the air outlet 110 into the room. The fan 300 is preferably a crossflow fan with a central rotational axis extending transversely. The evaporator 200 is preferably a three-stage evaporator that covers the space in front of and above the crossflow fan. Furthermore, it may be a finned evaporator.

[0043] The number of fans 300 can 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 cross-flow fan volute. When the number of fans 300 is one, the corresponding air supply ports 110 can be multiple, and 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 can correspond to one 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 to one. Of course, the number of air supply ports 110 can also 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 outlet 110 is the same, which not only achieves uniform air supply but also ensures the overall beauty of the indoor unit 10.

[0045] In the prior art, the efficiency on both sides of the cross-flow fan is low, and the negative pressure formed by the air output 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.

[0046] Furthermore, in the prior art, the indoor hanging unit has problems such as small air induced volume, single air mixing direction, and uneven air mixing.

[0047] In order to solve the above technical problems, the present invention provides a technical solution of adding a drainage part 400. Specifically, the drainage part 400 is provided on both sides and below the air outlet 110, and includes a first drainage part and a second drainage part, wherein:

[0048] The first air inlet portion includes at least one first air inlet groove 410 and a second air inlet groove 420. The first air inlet groove 410 is formed simultaneously with the shell 100, that is, it is formed by deforming the shell 100 during the formation process. The first air inlet groove 410 is composed of a gap formed laterally at the end of the air supply port 110 and on both sides of the shell 100, allowing indoor air behind the shell 100 to flow toward the air supply port 110 through the first air inlet groove 410, mix with the heat exchange air to form a mixed flow, and then blow into the room. The second air inlet groove 420 is composed of a gap formed by the air supply port 110, allowing indoor air behind the shell 100 to flow toward the air supply port 110 through the second air inlet groove 420, mix with the heat exchange air to form a mixed flow, and then blow into the room.

[0049] The number of first air induction slots 410 can be one or two. When there is one first air induction slot 410, it is set on one side of the air supply port 110. Then, the indoor air on one side of the rear of the housing 100 will flow to the air supply port 110 through the first air induction slot 410, mix with the heat exchange air to form mixed flow air, and then blow into the room. To a certain extent, the air intake volume of the indoor hanging unit is increased, the mixed air direction is diversified, and the mixed air is further uniformed.

[0050] However, in the present invention, preferably, there are two first air induction grooves 410, which are located on both sides of the air supply port 110 respectively. 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 induction volume of the indoor hanging unit, realizing the diversification of the mixed air direction, and making the mixed air more uniform.

[0051] 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.

[0052] The second air induction groove 420 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 second air induction groove 420, mix with the heat exchange air to form a mixed flow and blow into the room again.

[0053] A second air induction groove 420 is set at the interval between the independent air supply outlets 110. The high-speed airflow of the two adjacent air supply outlets 110 forms a strong negative pressure at the interval between the air supply outlets 110, forming a drainage airflow. The drainage airflow at the interval is interspersed inside the cold air flow wind column, and air mixing and temperature exchange are directly carried out inside the wind column, thereby forming a cool but not cold mixed air column with uniform air mixing. Since a strong negative pressure is formed at the interval, a large-volume and high-speed drainage airflow can be formed. Therefore, the technical solution of this embodiment can not only realize the interspersed and sufficient mixing of cold and hot air flows, but also greatly increase the drainage volume, thereby improving the user's cool but not cold comfortable air supply experience.

[0054] The second guide portion includes a guide plate 430, which is arranged below the bottom of the shell 100 and extends laterally in the length direction, and defines a third air guide groove 440 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 third air guide groove 440, mix with the heat exchange air to form a mixed flow and blow into the room again.

[0055] A third air induction slot 440 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.

[0056] As shown in FIG4 , the first air induction groove 410 , the second air induction groove 420 and the third air induction groove 440 are interconnected, 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 outlet 110 is intuitively shown in FIG.

[0057] The first air induction groove 410 and the second air induction groove 420 are located on the side of the air supply port 110 , and the third air induction groove 440 is located at the bottom of the air supply port 110 . The air induction part is composed of the first air induction grooves 410 on both sides, the second air induction grooves 420 at the interval of the air outlet and the third air induction grooves 440 at the lower part of the air supply outlet 110. The first air induction grooves 410, the second air induction grooves 420 and the third air induction grooves 440 are interconnected to form a plug-in type fully enclosed full air induction outlet. The heat exchange airflow at the air supply outlet 110 forms an embracing negative pressure in the surrounding area of ​​each independent air supply outlet 110. For the indoor unit 10 as a whole, the second air induction grooves 420 interrupt the main airflow to form a plug-in air induction, and the first air induction grooves 410 are set on both sides to form a complete embracing peripheral negative pressure area, which can greatly increase the drainage volume and the drainage area, and improve the uniformity of the mixed air, bringing users a truly cool but not cold comfortable experience. The technical solution of the present invention not only has good feasibility and economic value, but also has promotion value.

[0058] In cooling mode, the mixed air is warmer than the heat exchange air; in heating mode, the mixed air is cooler. This invention prevents excessively cold or hot heat exchange air from blowing toward the human body, potentially causing discomfort. In short, the air conditioner indoor unit 10 blows mixed air into the room, making the air flow softer, enhancing the comfort of the air supply and improving the user's wind sensation. Furthermore, because additional indoor air is mixed with the heat exchange air, the total air volume at the air outlet 110 increases, accelerating cooling and heating.

[0059] On the other hand, in order to better connect the guide plate 430 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. 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 430.

[0060] A synchronous drive motor (not shown in the figure) is connected to both ends of the connecting member 500. The connecting member 500 drives the guide plate 430 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 440 parallel to the air supply direction of the air supply port 110.

[0061] In this embodiment, the air guide plate 600 is preferably positioned so that the air inlet direction of the third air inlet trough 440 is parallel to the air supply direction of the air outlet 110. If the air inlet direction of the third air inlet trough 440 is not parallel or not nearly parallel to the air supply direction of the air outlet 110, the indoor air intake and heat exchange air cannot be completely and evenly mixed, stable air supply cannot be achieved, and a good user experience cannot be provided.

[0062] To better guide airflow, the present invention designs the guide plate 430 to have an elliptical cross-section, with the major axis of the elliptical cross-section extending obliquely upward from front to rear relative to the housing 100. This allows air from the lower rear of the housing 100 to flow diagonally upward along the narrow side of the ellipse before flowing diagonally downward along the wide side, merging more smoothly with the heat exchange air. This also enhances the aesthetics of the air conditioner indoor unit 10.

[0063] In some preferred embodiments, the lateral widths of the first and second air induction slots 410 and 420 and the air outlet 110 are equal to the lateral width of the third air induction slot 440. By maximizing the air mixing area, the air mixing volume and air mixing effect are maximized.

[0064] Preferably, the ratio of the lateral width of the first air inlet 410 or the second air inlet 420 to the lateral width of the air supply port 110 is 1:10 to 1:5. The appropriate lateral widths of the first air inlet 410 and the second air inlet 420 are selected so that the heat exchange air from the air supply port 110 accounts for the majority of the air supplied to the room, thereby ensuring a stable indoor temperature. Furthermore, an appropriate amount of indoor air is introduced to mix with the heat exchange air, making the air supplied to the room cool but not cold, thereby improving user comfort. Furthermore, the longitudinal width of the third air inlet 440 is smaller than the longitudinal opening width of the air supply port 110, so that the air volume introduced by the third air inlet 440 is smaller than the heat exchange air from the air supply port 110, thereby ensuring a stable indoor temperature while providing the user with a cool but not cold air supply experience.

[0065] 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.

[0066] 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 air, thereby reducing the noise generated when the two flows merge.

[0067] At this point, those skilled in the art will recognize that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, many other variations or modifications consistent with the principles of the present invention may be directly determined or derived from the disclosure of 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 deemed to cover all such 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 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 inlet portion includes at least one first air inlet groove and a second air inlet groove, wherein the first air inlet groove is formed by a notch formed laterally at the end of the air outlet and at both sides of the shell, and the second air inlet groove is formed by a spacing notch formed by the air outlet, so as to allow indoor air at the rear side or rear of the shell to flow to the air outlet through the first air inlet groove and the second air inlet groove respectively, and to be mixed with the heat exchange air to form a mixed flow and blown to 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 third 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 third 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, the second air induction groove and the third air induction groove are interconnected to form a plug-in type fully enclosed 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 horizontal direction of the shell, and rotates synchronously with the air guide plate, so that the air induction direction of the third 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: The lateral widths of the first air induction groove and the second air induction groove and the lateral width of the air supply port are equal to the lateral width of the third air induction groove.

4. The wall-mounted air conditioner indoor unit according to claim 1, wherein: The first air induction groove and the second air induction groove are 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 or the second air induction groove to the lateral width of the air supply port is 1:10 to 1:5, and The longitudinal width of the third 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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