Indoor unit, air conditioner and control method of indoor unit

Abstract

The present invention provides an indoor unit, an air conditioner and a control method for the indoor unit. The indoor unit includes: a bottom shell; a panel body, the panel body is connected to the bottom shell, and the panel body has an air outlet; a panel, the panel is connected to the panel body; a first air guide plate, the first air guide plate is arranged at the air outlet, and the first air guide plate has a first closed position and a first open position; a second air guide plate, the second air guide plate is arranged at the air outlet, and the second air guide plate has a second closed position and a second open position; by arranging the first air guide plate and the second air guide plate to cooperate, when the first air guide plate is located at the first closed position, the second air guide plate can be located at the second open position or the second closed position, when the second air guide plate is located at the second open position, the indoor unit realizes upward blowing, and when the second air guide plate is located at the second closed position, the air outlet is closed to prevent dust from falling from the outside. By such an arrangement, the cold wind is prevented from blowing directly on people, and the comfort of the indoor unit is improved.

Description

Technical Field

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

[0002] The problem of household wall-mounted air conditioners blowing cold air has always been a headache for the industry. Although some products can prevent direct blowing by adjusting the angle of the air guide plate, it can only prevent direct blowing at a certain angle, or use control functions to sweep the wind away from people, but it cannot prevent direct blowing throughout the house. The large air guide baffles sold as air-conditioning accessories on the market can improve the problem of cooling and blowing cold air, but there are problems such as poor cooling effect, condensation, inconvenient installation, and the need to remove the baffle for heating. Summary of the invention

[0003] The main purpose of the present invention is to provide an indoor unit, an air conditioner and a control method for the indoor unit, so as to solve the problem that the air conditioner in the prior art cannot prevent direct blowing throughout the house.

[0004] In order to achieve the above-mentioned object, according to one aspect of the present invention, an indoor unit is provided, the indoor unit comprising: a bottom shell; a panel body, the panel body is connected to the bottom shell, and the panel body has an air outlet; a panel, the panel is connected to the panel body; a first air guide plate, the first air guide plate is connected to at least one of the bottom shell, the panel body and the panel, the first air guide plate is arranged at the air outlet, the first air guide plate has a first closed position for closing the air outlet, and the first air guide plate has a first open position for opening the air outlet; a second air guide plate, the second air guide plate is connected to at least one of the bottom shell, the panel body and the panel, the second air guide plate is arranged at the air outlet, and the second air guide plate is arranged adjacent to the first air guide plate, the second air guide plate has a second closed position for closing the air outlet, and the second air guide plate has a second open position for opening the air outlet; wherein, when the first air guide plate is located at the first closed position, the second air guide plate can be selectively located at the second closed position or the second open position, and when the first air guide plate is located at the first closed position and the second air guide plate is located at the second closed position, the first air guide plate and the second air guide plate close the air outlet.

[0005] Furthermore, the first air guide plate has a first rotation center O1, and the second air guide plate has a second rotation center O2. When the first air guide plate is in the closed position, the first rotation center O1 is located on the inner side of the first air guide plate, and the second rotation center O2 is located on the outer side of the first air guide plate.

[0006] Further, one end of the second air guide plate close to the bottom shell is arranged adjacent to the second rotation center O2.

[0007] Furthermore, the indoor unit includes an upper air outlet mode. When the indoor unit is in the upper air outlet mode, the first air guide plate is located at a first closed position, the second air guide plate is located at a second open position, a first air outlet channel is formed between the second air guide plate and the outer surface of the panel, and the first air guide plate is located between the second air guide plate and the bottom shell.

[0008] Furthermore, the indoor unit includes a downward air outlet mode. When the indoor unit is in the downward air outlet mode, the first air guide plate is located at a first open position, the second air guide plate is located at a second closed position, the first end of a part of the second air guide plate is in contact with the panel, and the first air guide plate is located in a receiving space formed between the second end of the second air guide plate and another part of the panel body.

[0009] Furthermore, the indoor unit includes a downward air outlet mode, and a second air outlet channel is enclosed between the first air guide plate and the bottom shell.

[0010] Further, when the first air guide plate is located at the first open position, the first end of the first air guide plate overlaps the upper side wall of the air outlet, and the second end of the first air guide plate is arranged toward a side of the second air guide plate.

[0011] Furthermore, a blocking rib is protrudingly provided on the upper side wall of the air outlet, and when the first air guide plate is located at the first open position, the first end of the first air guide plate overlaps the blocking rib.

[0012] Furthermore, when the second air guide plate is in the second closed position, the first end of the second air guide plate is arranged flush with the top of the panel, or when the second air guide plate is in the second closed position, the first end of the second air guide plate is arranged at a distance from the top of the panel.

[0013] Furthermore, the width of the second air guide plate along the vertical direction is greater than or equal to 80 mm.

[0014] Furthermore, the opening angle of the second air guide plate is N, wherein 40°≤N≤70°.

[0015] Further, when the first air guide plate is located at the first closed position, a first gap is provided between the end of the first air guide plate and the bottom shell, and a width of the first gap is greater than or equal to 3 mm.

[0016] Furthermore, the indoor unit also includes: a rack mechanism, one end of the rack mechanism is connected to at least one of the bottom shell and the panel body, and the other end of the rack mechanism is fixedly connected to the second air guide plate, and the rack mechanism is used to drive the second air guide plate to rotate around the second rotation center O2.

[0017] Further, before the first air guide plate moves to the first closed position and switches to the first open position, the rack mechanism pushes the second air guide plate out to a preset angle in advance.

[0018] Furthermore, the indoor unit also includes: a connecting rod mechanism, which is at least one group, one end of the connecting rod mechanism is connected to at least one of the bottom shell and the panel body, and the other end of the connecting rod mechanism is connected to the second air guide plate, and the connecting rod mechanism is located on one side of the rack mechanism.

[0019] Furthermore, the indoor unit also includes: a driving part, the driving part is connected to the bottom shell, one end of the first air guide plate is connected to the output shaft of the driving part through a crankshaft, and the other end of the first air guide plate is connected to the bottom shell through a pin shaft, and the driving part can drive the first air guide plate to be located at a first closed position and a first open position.

[0020] Further, when the first air guide plate is located at the first closed position and the second air guide plate is located at the second closed position, a second gap L1 is provided between the first air guide plate and the second air guide plate, wherein 4 mm ≤ L1 ≤ 6 mm.

[0021] Furthermore, an end portion of the second air guide plate facing one end of the first air guide plate is provided with an inclined surface, and the inclined surface is located on the inner side of the second air guide plate.

[0022] Furthermore, a microporous structure is provided at one end of the second air guide plate close to the top of the panel.

[0023] Furthermore, the first air guide plate includes: a plate body, along the length direction of the plate body, the outer surface of the first end of the plate body is provided with a first inclined surface, and the second end of the plate body is provided with a second inclined surface. When the plate body is in the first closed position, there is a third gap between the first inclined surface and the panel body, and there is a fourth gap between the second inclined surface and the panel body.

[0024] Further, a width of the third gap or the fourth gap is L2, wherein 0.2 mm≤L2≤0.4 mm.

[0025] Furthermore, when the plate body is located at the first closed position, a third inclined surface is provided on the outer side of one end of the plate body close to the lower side wall of the air outlet along the width direction of the plate body, and a fifth gap is provided between the third inclined surface and the lower side wall of the air outlet.

[0026] Furthermore, the width of the fifth gap is L3, wherein 0.2 mm≤L3≤0.4 mm.

[0027] Furthermore, a fourth inclined surface is provided at one end of the plate body close to the lower side wall of the air outlet. The fourth inclined surface is located inside the third inclined surface, and the fourth inclined surface is provided at an angle to the third inclined surface.

[0028] Furthermore, a fifth inclined surface matched with the first inclined surface is arranged on the panel body, and a sixth inclined surface matched with the second inclined surface is arranged on the panel body, and the fifth inclined surface and the sixth inclined surface are arranged opposite to each other along the width direction of the bottom shell.

[0029] Furthermore, when the second air guide plate is in the second closed position, a shielding flange is provided at one end of the second air guide plate close to the first air guide plate, and the shielding flange is extended along the length direction of the second air guide plate. When the first air guide plate is in the first closed position, the shielding flange is located on the outside of the first air guide plate.

[0030] Furthermore, when the first air guide plate is located at the first closed position and the second air guide plate is located at the second closed position, the outer surface of the first air guide plate and the outer surface of the second air guide plate form the appearance decorative surface of the indoor unit.

[0031] According to another aspect of the present invention, a control method for an indoor unit is provided, comprising the following steps: starting a cooling mode, controlling a first air guide plate to be located at a first closed position, controlling a second air guide plate to rotate to a second open position, and realizing an upper air outlet mode at an air outlet.

[0032] Further, the heating mode is turned on, and the second air guide plate is controlled to rotate along a preset trajectory around the second rotation center O2 to a first preset angle; the first air guide plate is controlled to rotate along the preset trajectory to a second preset angle and then be located in the first open position, and the second air guide plate is controlled to reset to the second closed position, and the air outlet realizes the downward air outlet mode.

[0033] Further, the first preset angle is A, wherein 10°≤A≤20°, and / or the second preset angle is B, wherein 100°≤B≤120°.

[0034] According to another aspect of the present invention, an air conditioner is provided, comprising an indoor unit, wherein the indoor unit is the indoor unit described above.

[0035] By applying the technical solution of the present invention, a first air guide plate and a second air guide plate are arranged to cooperate with each other to open and close the same air outlet. When the first air guide plate is located at the first closed position, the second air guide plate can be located at the second open position or the second closed position. When the second air guide plate is located at the second open position, the indoor unit can blow air upwards. When the second air guide plate is located at the second closed position, the air outlet is closed to prevent dust from falling from the outside. By such an arrangement, direct blowing of cold air on people is avoided, and the whole house is protected from direct blowing. By adopting the technical solution of the present application, two air guide plates are arranged, and the air outlet direction of the indoor unit is controlled by controlling the air guide plates to be located at different air guide positions, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0037] Figure 1 It shows a schematic structural diagram of a first embodiment of an indoor unit according to the present invention;

[0038] Figure 2 It shows a schematic structural diagram of a second embodiment of an indoor unit according to the present invention;

[0039] Figure 3 A schematic structural diagram of a third embodiment of an indoor unit according to the present invention is shown;

[0040] Figure 4 A schematic structural diagram of a fourth embodiment of an indoor unit according to the present invention is shown;

[0041] Figure 5 A schematic structural diagram of a fifth embodiment of an indoor unit according to the present invention is shown;

[0042] Figure 6 A schematic structural diagram of a sixth embodiment of an indoor unit according to the present invention is shown;

[0043] Figure 7 A schematic structural diagram of a seventh embodiment of an indoor unit according to the present invention is shown;

[0044] Figure 8 A schematic diagram showing a flow chart of a cooling mode of an indoor unit according to the present invention is shown;

[0045] Fig. 9 A schematic diagram of a process flow of a heating mode of an indoor unit according to the present invention is shown;

[0046] Fig.10 A schematic structural diagram of an indoor unit according to an eighth embodiment of the present invention is shown;

[0047] Fig.11 Shows Fig.10 A schematic diagram of the enlarged structure of part A;

[0048] Fig.12 A schematic structural diagram of a ninth embodiment of an indoor unit according to the present invention is shown;

[0049] Fig.13 Shows Fig.12 A schematic diagram of the enlarged structure of part B;

[0050] Fig.14 A schematic structural diagram of a tenth embodiment of an indoor unit according to the present invention is shown;

[0051] Fig.15 It shows a schematic structural diagram of an eleventh embodiment of an indoor unit according to the present invention;

[0052] Fig.16 Shows Fig.15 A schematic diagram of the enlarged structure of the middle C part;

[0053] Fig.17 Shows Fig.15 A schematic diagram of the enlarged structure of the D part;

[0054] Fig.18 It shows a schematic structural diagram of a twelfth embodiment of an indoor unit according to the present invention;

[0055] Fig.19 Shows Fig.18 A schematic diagram of the enlarged structure of part E in the middle;

[0056] Fig. 20 Shows Fig.18 A schematic diagram of the enlarged structure of part F;

[0057] Fig.21 shows a schematic diagram of the assembly of an indoor unit according to the present invention;

[0058] Fig. 22 Shows Fig.21 A schematic diagram of the enlarged structure of the G portion;

[0059] Fig.23 Shows Fig.21 A schematic diagram of the enlarged structure of the H part;

[0060] Fig.24 A schematic structural diagram of a first embodiment of a first air guide plate according to the present invention is shown;

[0061] Fig.25 A structural schematic diagram of a second embodiment of the first air guide plate according to the present invention is shown.

[0062] The above drawings include the following reference numerals:

[0063] 10. bottom shell; 11. retaining rib; 20. panel; 30. air outlet;

[0064] 40. first air guide plate; 41. plate body; 411. first inclined surface; 412. second inclined surface; 413. third inclined surface; 414. fourth inclined surface;

[0065] 50. second air guide plate; 51. inclined surface; 52. shielding flange;

[0066] 61. First air outlet channel; 62. Second air outlet channel;

[0067] 70. rack mechanism; 81. driving unit; 82. crankshaft; 83. pin shaft;

[0068] 90. Panel body; 91. Fifth inclined plane; 92. Sixth inclined plane. DETAILED DESCRIPTION

[0069] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0070] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0071] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0072] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.

[0073] Combination Figures 1 to 25 As shown, according to a specific embodiment of the present application, an indoor unit is provided.

[0074] like Figure 1As shown, the indoor unit includes: a bottom shell 10; a panel body 90, the panel body 90 is connected to the bottom shell 10, and the panel body 90 has an air outlet 30; a panel 20, the panel 20 is connected to the panel body 90; a first air guide plate 40, the first air guide plate 40 is connected to at least one of the bottom shell 10, the panel body 90 and the panel 20, the first air guide plate 40 is arranged at the air outlet 30, the first air guide plate 40 has a first closed position for closing the air outlet 30, and the first air guide plate 40 has a first open position for opening the air outlet 30; a second air guide plate 50, the second air guide plate 50 is connected to the bottom shell 10, the panel body 90 and the panel 20 At least one connection is formed between the second air guide plate 50 and the first air guide plate 40, the second air guide plate 50 is arranged at the air outlet 30, and the second air guide plate 50 is arranged adjacent to the first air guide plate 40, the second air guide plate 50 has a second closed position for closing the air outlet 30, and the second air guide plate 50 has a second open position for opening the air outlet 30; wherein, when the first air guide plate 40 is in the first closed position, the second air guide plate 50 can be selectively located at the second closed position or the second open position, and when the first air guide plate 40 is in the first closed position and the second air guide plate 50 is in the second closed position, the first air guide plate 40 and the second air guide plate 50 close the air outlet 30.

[0075] By applying the technical solution of the present invention, the first air guide plate and the second air guide plate are arranged to cooperate with each other to open and close the same air outlet. When the first air guide plate is in the first closed position, the second air guide plate can be in the second open position or the second closed position. When the second air guide plate is in the second open position, Figure 2 As shown, the indoor unit realizes upward blowing. When the second air guide plate is located at the second closed position, as shown in FIG. Figure 7 As shown, the air outlet is closed to prevent dust from falling from the outside. This arrangement prevents cold wind from blowing directly on people, and achieves a direct blowing protection effect for the whole house. The technical solution of the present application is adopted to control the air outlet direction of the indoor unit by setting two air guide plates and controlling the air guide plates to be located at different air guide positions, thereby improving the user experience.

[0076] The first air guide plate 40 has a first rotation center O1, and the second air guide plate 50 has a second rotation center O2. When the first air guide plate 40 is in the closed position, the first rotation center O1 is located inside the first air guide plate 40, and the second rotation center O2 is located outside the first air guide plate 40. Figure 1 As shown, the first air guide plate 40 can rotate around the first rotation center O1 to reach the first open position and the first closed position, and the second air guide plate 50 can rotate around the second rotation center O2 to reach the second open position and the second closed position.

[0077] Specifically, the end of the second air guide plate 50 close to the bottom shell 10 is arranged adjacent to the second rotation center O2. Such an arrangement can optimize the opening stroke of the end of the second air guide plate 50 away from the bottom shell 10.

[0078] The indoor unit includes an upper air outlet mode. When the indoor unit is in the upper air outlet mode, the first air guide plate 40 is located at the first closed position, the second air guide plate 50 is located at the second open position, a first air outlet channel 61 is formed between the second air guide plate 50 and the outer surface of the panel 20, and the first air guide plate 40 is located between the second air guide plate 50 and the bottom shell 10. When the indoor unit is in the upper air outlet mode, the wind is blown out from the first air outlet channel 61, which can prevent the cold wind from blowing directly on the head.

[0079] The indoor unit includes a down-flow mode. When the indoor unit is in the down-flow mode, the first air guide plate 40 is located at the first open position, the second air guide plate 50 is located at the second closed position, the first end of a portion of the second air guide plate 50 is in contact with the panel 20, and the first air guide plate 40 is located in the accommodation space formed between the second end of the second air guide plate 50 and another portion of the panel body 90. When the indoor unit is in the down-flow mode, the first air guide plate is located in the accommodation space, and the second air guide plate can cover the second air guide plate to make the indoor unit more beautiful.

[0080] The indoor unit includes a downward air outlet mode, and a second air outlet channel 62 is formed between the first air guide plate 40 and the bottom shell 10. Figure 3 As shown, when in the downward air outlet mode, wind is blown out from the second air outlet channel 62. When the indoor unit is in the heating mode, the downward air outlet mode can make the hot air flow downward and rise from the ground to achieve carpet-style heating. The temperature in the room is evenly distributed, and the comfort of using the air conditioner is higher.

[0081] When the first air guide plate 40 is in the first open position, the first end of the first air guide plate 40 overlaps the upper side wall of the air outlet 30, and the second end of the first air guide plate 40 is disposed toward the second air guide plate 50. Figure 1 As shown, such a configuration can prevent the outlet air from rushing into the cavity between the first air guide plate 40 and the second air guide plate 50. When the first air guide plate 40 is in the first open position, the outlet air flows downward and away from the air inlet, thereby improving the working efficiency of the air conditioner.

[0082] Specifically, Figure 3 As shown, the upper side wall of the air outlet 30 is protrudingly provided with a blocking rib 11, and when the first air guide plate 40 is in the first open position, the first end of the first air guide plate 40 overlaps the blocking rib 11. The provision of the blocking rib 11 can better prevent wind from leaking from the first air guide plate 40 into the cavity between the first air guide plate 40 and the second air guide plate 50.

[0083] Optionally, when the second air guide plate 50 is in the second closed position, the first end of the second air guide plate 50 is arranged flush with the top of the panel 20, or when the second air guide plate 50 is in the second closed position, the first end of the second air guide plate 50 is arranged at a distance from the top of the panel 20. Figure 1 As shown, when the second air guide plate 50 is located at the second closed position, the first end of the second air guide plate 50 is set at a distance from the top of the panel 20, which saves costs while ensuring the function of the indoor unit. In actual application, when the second air guide plate 50 is located at the second closed position, the first end of the second air guide plate 50 is set flush with the top of the panel 20, so that the internal structure of the indoor unit will not be exposed and the indoor unit is more beautiful.

[0084] Specifically, the width of the second air guide plate 50 along the vertical direction is greater than or equal to 80 mm. Such a width setting can enable the second air guide plate 50 to have a longer air supply distance and achieve a better air supply effect.

[0085] like Figure 1 As shown, in order to achieve a better air supply effect of the second air guide plate 50, the opening angle of the second air guide plate 50 is N, wherein 40°≤N≤70°. By limiting the size of the opening angle N of the second air guide plate 50, the second air guide plate 50 can better cooperate with the first air guide plate 40 to achieve a better air supply effect.

[0086] When the first air guide plate 40 is in the first closed position, there is a first gap between the end of the first air guide plate 40 and the bottom shell 10, and the width of the first gap is greater than or equal to 3 mm. By setting this gap, an anti-condensation effect can be achieved to prevent condensation from forming at the end of the first air guide plate 40 due to the difference in internal and external temperatures.

[0087] The indoor unit further includes a rack mechanism 70, one end of which is connected to at least one of the bottom shell 10 and the panel body 90, and the other end of which is fixedly connected to the second air guide plate 50, and the rack mechanism 70 is used to drive the second air guide plate 50 to rotate around the second rotation center O2. Figure 4 As shown, the rack mechanism is used to drive the second air guide plate 50 to rotate, which can reduce the structural stroke and manufacturing cost.

[0088] Specifically, before the first air guide plate 40 is moved to the first closed position and switched to the first open position, the rack mechanism 70 pushes the second air guide plate 50 out to a preset angle in advance. This arrangement can make the second air guide plate 50 more convenient to rotate.

[0089] Optionally, the indoor unit further includes a connecting rod mechanism, which is at least one group, one end of which is connected to at least one of the bottom shell 10 and the panel body 90, and the other end of which is connected to the second air guide plate 50, and the connecting rod mechanism is located on one side of the rack mechanism 70. Optionally, the shaft hole of the connecting rod mechanism may be hexagonal.

[0090] The indoor unit further includes a driving unit 81, which is connected to the bottom shell 10. One end of the first air guide plate 40 is connected to the output shaft of the driving unit 81 through a crankshaft 82, and the other end of the first air guide plate 40 is connected to the bottom shell 10 through a pin shaft 83. The driving unit 81 can drive the first air guide plate 40 to be located at the first closed position and the first open position. Figure 5 As shown, one end of the first air guide plate 40 is connected to the output shaft of the driving part 81 through the crankshaft 82, which can drive the first air guide plate 40 to rotate, and the other end of the first air guide plate 40 is connected to the bottom shell 10 through the pin shaft 83, which allows the first air guide plate 40 to rotate on the bottom shell 10.

[0091] To facilitate the position change between the first air guide plate 40 and the second air guide plate 50, when the first air guide plate 40 is in the first closed position and the second air guide plate 50 is in the second closed position, there is a second gap L between the first air guide plate 40 and the second air guide plate 50, wherein 4mm≤L≤6mm. By limiting the value of the second gap L, the second air guide plate 50 does not need to be pushed out to avoid, and the first air guide plate 40 can be directly pushed out, while also preventing the gap from being too large to affect the performance of the indoor unit.

[0092] The end of the second air guide plate 50 facing one end of the first air guide plate 40 is provided with an inclined surface 51, and the inclined surface 51 is located on the inner side of the second air guide plate 50. Figure 6 As shown, the setting of the inclined surface 51 can ensure that in the upper air outlet mode, the first air guide plate 40 remains in a closed state, and the second air guide plate 50 will not interfere with the first air guide plate 40 when it is opened.

[0093] Optionally, the outer surface of the first air guide plate 40 is a curved surface, and the inner edge of the first air guide plate 40 is an arc line, such as Figure 1 As shown, the profile of the inner edge of the first air guide plate 40 is an arc close to a straight line. In practical applications, the profile of the inner edge of the first air guide plate 40 should be a profile that matches the appearance, and can be an inward arc or a straight line. To avoid not being able to match the airflow arc during heating, the profile of the inner edge of the first air guide plate 40 is preferably an outward arc.

[0094] A microporous structure is provided at one end of the second air guide plate 50 close to the top of the panel 20. This arrangement can realize windless air supply during cooling. In practical applications, the microporous structure can also cover the entire second air guide plate 50.

[0095] The first air guide plate 40 includes: a plate body 41, along the length direction of the plate body 41, the outer surface of the first end of the plate body 41 is provided with a first inclined surface 411, the outer surface of the second end of the plate body 41 is provided with a second inclined surface 412, when the plate body 41 is located at the first closed position, there is a third gap between the first inclined surface 411 and the panel body 90, there is a fourth gap between the second inclined surface 412 and the panel body 90, combined with Figures 10 to 25 As shown, by setting the first bevel 411 and the second bevel 412, the assembly problem caused by the length dimension tolerance of parts brought about by the straight surface matching in the prior art can be avoided, and the setting of the third gap and the fourth gap facilitates the assembly of the indoor unit.

[0096] The width of the third gap or the fourth gap is L2, where 0.2mm≤L2≤0.4mm. Optionally, the width L2 of the third gap and the fourth gap can be 0.3mm, which visually forms an effect of nearly seamless matching. In actual application, the value of L2 can be determined according to parameters such as the size of the indoor unit and the size of the first air guide plate. Limiting L2 within a certain range can facilitate the assembly and disassembly of the indoor unit while increasing the appearance of the indoor unit.

[0097] When the plate body 41 is in the first closed position, a third inclined surface 413 is disposed on the outer side of one end of the plate body 41 close to the lower side wall of the air outlet 30 along the width direction of the plate body 41, and a fifth gap is formed between the third inclined surface 413 and the lower side wall of the air outlet 30. Fig.10 and Fig.11 As shown, the arrangement of the third inclined surface 413 and the fifth gap can make the first air guide plate 40 more convenient to be assembled with the panel body 90 in the width direction.

[0098] The width of the fifth gap is L3, where 0.2 mm ≤ L3 ≤ 0.4 mm. Optionally, the value of L3 may be 0.3 mm, so that a nearly seamless fit is formed visually. Limiting L3 within a certain range can facilitate assembly and disassembly of the indoor unit while increasing the aesthetic appearance of the indoor unit.

[0099] A fourth inclined surface 414 is further provided at one end of the lower side wall of the plate body 41 close to the air outlet 30. The fourth inclined surface 414 is located inside the third inclined surface 413. The fourth inclined surface 414 and the third inclined surface 413 are arranged at an angle. Fig.12 , Fig.13 , Fig.25 As shown, when the air conditioner is in the heating mode, the first air guide plate 40 rotates counterclockwise to Fig.12In the position shown, the fourth inclined surface 414 overlaps the bottom shell 10. At this time, a downward air outlet is formed between the first air guide plate 40, the bottom shell 10, and the panel body 90 to achieve downward air outlet. To ensure that the indoor heating air volume is sufficient, the width of the downward air outlet is set at least 40 mm. The setting of the fourth inclined surface 414 can make the first air guide plate 40 and the bottom shell 10 cooperate better. The angle between the fourth inclined surface 414 and the third inclined surface 413 should be determined according to the parameters of the bottom shell 10 and the panel body 90.

[0100] In order to facilitate the assembly and disassembly of the panel body 90 and the first air guide plate 40, a fifth inclined surface 91 matching the first inclined surface 411 is provided on the panel body 90, and a sixth inclined surface 92 matching the second inclined surface 412 is provided on the panel body 90, and the fifth inclined surface 91 and the sixth inclined surface 92 are arranged opposite to each other along the width direction of the bottom shell 10. Fig.21 , Fig. 22 , Fig.23 As shown, the shapes and sizes of the fifth inclined surface 91 and the sixth inclined surface 92 should be determined according to the first inclined surface 411 and the second inclined surface 412 .

[0101] When the second air guide plate 50 is in the second closed position, a shielding flange 52 is provided at one end of the second air guide plate 50 close to the first air guide plate 40. The shielding flange 52 is extended along the length direction of the second air guide plate 50. When the first air guide plate 40 is in the first closed position, the shielding flange 52 is located on the outer side of the first air guide plate 40. Fig.10 As shown, the setting of the shielding flange 52 can cover the gap at the matching position of the first air guide plate 40 and the second air guide plate 50, thereby preventing the gap from being exposed on the front side of the indoor unit and improving the aesthetics of the indoor unit.

[0102] When the first air guide plate 40 is in the first closed position and the second air guide plate 50 is in the second closed position, the outer surface of the first air guide plate 40 and the outer surface of the second air guide plate 50 form the exterior decorative surface of the indoor unit. This arrangement can reduce the exterior decoration cost of the indoor unit without the need for additional separate exterior decorative parts.

[0103] The indoor unit adopting the above technical solution can simultaneously realize long-distance upward air outlet for cooling and floor-to-floor air supply for heating, solving the problems of low heat exchange efficiency, uneven room temperature distribution and low comfort in the prior art. At the same time, it also has the technical effect of preventing condensation and avoiding cold air blowing directly on people.

[0104] According to another specific embodiment of the present application, a control method for an indoor unit is provided. The method comprises the following steps: turning on the cooling mode, controlling the first air guide plate 40 to be located at the first closed position, controlling the second air guide plate 50 to rotate to the second open position, and the air outlet 30 to realize the upper air outlet mode. The specific steps are as follows: Figure 8As shown, turning on the upward air outlet mode in cooling mode can make the cold air flow upward to avoid the cold air blowing directly on the head.

[0105] Turn on the heating mode, control the second air guide plate 50 to rotate along the preset trajectory around the second rotation center O2 by a first preset angle; control the first air guide plate 40 to rotate along the preset trajectory by a second preset angle and then be located at the first open position, control the second air guide plate 50 to reset to the second closed position, and the air outlet 30 realizes the downward air outlet mode. The specific steps are as follows: Fig. 9 As shown, turning on the downward air outlet mode in the heating mode can make the air flow blow downward, and the hot air flow rises from the ground, achieving carpet-style heating and better comfort.

[0106] The first preset angle is A, where 10°≤A≤20°, and the second preset angle is B, where 100°≤B≤120°. Setting the range of the first preset angle and the second preset angle can facilitate the rapid overlap of the first air guide plate 40 and the second air guide plate 50. Specifically, the first preset angle A can be selected to be 16°, and the second preset angle B can be selected to be 114°.

[0107] The indoor unit in the above embodiment can also be used in the technical field of air-conditioning equipment. That is, according to another specific embodiment of the present application, an air conditioner is provided, including an indoor unit, and the indoor unit is the indoor unit in the above embodiment.

[0108] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0109] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present invention.

[0110] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An indoor unit, characterized in that: include: Bottom shell (10); A panel body (90), the panel body (90) being connected to the bottom shell (10), and the panel body (90) having an air outlet (30); A panel (20), wherein the panel (20) is connected to the panel body (90); a first air guide plate (40), the first air guide plate (40) being connected to at least one of the bottom shell (10), the panel body (90) and the panel (20), the first air guide plate (40) being arranged at the air outlet (30), the first air guide plate (40) having a first closed position for closing the air outlet (30), and the first air guide plate (40) having a first open position for opening the air outlet (30); a second air guide plate (50), the second air guide plate (50) being connected to at least one of the bottom shell (10), the panel body (90) and the panel (20), the second air guide plate (50) being arranged at the air outlet (30), and the second air guide plate (50) being arranged adjacent to the first air guide plate (40), the second air guide plate (50) having a second closed position for closing the air outlet (30), and the second air guide plate (50) having a second open position for opening the air outlet (30); Wherein, when the first air guide plate (40) is located at the first closed position, the second air guide plate (50) can be selectively located at the second closed position or the second open position; when the first air guide plate (40) is located at the first closed position and the second air guide plate (50) is located at the second closed position, the first air guide plate (40) and the second air guide plate (50) close the air outlet (30); The first air guide plate (40) has a first rotation center O1, and the second air guide plate (50) has a second rotation center O2; when the first air guide plate (40) is in a closed position, the first rotation center O1 is located on the inner side of the first air guide plate (40), and the second rotation center O2 is located on the outer side of the first air guide plate (40); an end of the second air guide plate (50) close to the bottom shell (10) is arranged adjacent to the second rotation center O2; The indoor unit includes a downward air outlet mode. When the indoor unit is in the downward air outlet mode, the first air guide plate (40) is located at the first open position, the second air guide plate (50) is located at the second closed position, a first end of a portion of the second air guide plate (50) is in contact with the panel (20), and the first air guide plate (40) is located in a receiving space formed between the second end of the second air guide plate (50) and another portion of the panel body (90).

2. The indoor unit according to claim 1, characterized in that: The indoor unit includes an upper air outlet mode. When the indoor unit is in the upper air outlet mode, the first air guide plate (40) is located at the first closed position, the second air guide plate (50) is located at the second open position, a first air outlet channel (61) is formed between the second air guide plate (50) and the outer surface of the panel (20), and the first air guide plate (40) is located between the second air guide plate (50) and the bottom shell (10).

3. The indoor unit according to claim 1, characterized in that: The indoor unit includes a downward air outlet mode, and a second air outlet channel (62) is enclosed between the first air guide plate (40) and the bottom shell (10).

4. The indoor unit according to claim 1, characterized in that: When the first air guide plate (40) is located at the first open position, the first end of the first air guide plate (40) overlaps the upper side wall of the air outlet (30), and the second end of the first air guide plate (40) is arranged toward the side of the second air guide plate (50).

5. The indoor unit according to claim 4, characterized in that: A blocking rib (11) is protrudingly provided on the upper side wall of the air outlet (30), and when the first air guide plate (40) is located at the first open position, the first end of the first air guide plate (40) overlaps the blocking rib (11).

6. The indoor unit according to claim 1, characterized in that: When the second air guide plate (50) is located in the second closed position, the first end of the second air guide plate (50) is arranged flush with the top of the panel (20), or when the second air guide plate (50) is located in the second closed position, the first end of the second air guide plate (50) is arranged at a distance from the top of the panel (20).

7. The indoor unit according to claim 1, characterized in that: The width of the second air guide plate (50) along the vertical direction is greater than or equal to 80 mm.

8. The indoor unit according to claim 1, characterized in that: The opening angle of the second air guide plate (50) is N, wherein 40°≤N≤70°.

9. The indoor unit according to claim 1, characterized in that: When the first air guide plate (40) is located at the first closed position, a first gap is provided between the end of the first air guide plate (40) and the bottom shell (10), and the width of the first gap is greater than or equal to 3 mm.

10. The indoor unit according to claim 1, characterized in that: The indoor unit further comprises: A rack mechanism (70), one end of the rack mechanism (70) is connected to at least one of the bottom shell (10) and the panel body (90), and the other end of the rack mechanism (70) is fixedly connected to the second air guide plate (50), and the rack mechanism (70) is used to drive the second air guide plate (50) to rotate around the second rotation center O2.

11. The indoor unit according to claim 10, characterized in that: Before the first air guide plate (40) moves to the first closed position and switches to the first open position, the rack mechanism (70) pushes the second air guide plate (50) out to a preset angle in advance.

12. The indoor unit according to claim 10, characterized in that: The indoor unit further comprises: A connecting rod mechanism, wherein the connecting rod mechanism is at least one group, one end of the connecting rod mechanism is connected to at least one of the bottom shell (10) and the panel body (90), and the other end of the connecting rod mechanism is connected to the second air guide plate (50), and the connecting rod mechanism is located on one side of the rack mechanism (70).

13. The indoor unit according to claim 1, characterized in that: The indoor unit further comprises: A driving unit (81), wherein the driving unit (81) is connected to the bottom shell (10), one end of the first air guide plate (40) is connected to the output shaft of the driving unit (81) via a crankshaft (82), and the other end of the first air guide plate (40) is connected to the bottom shell (10) via a pin shaft (83), and the driving unit (81) can drive the first air guide plate (40) to be located at the first closed position and the first open position.

14. The indoor unit according to claim 1, characterized in that: When the first air guide plate (40) is located at the first closed position and the second air guide plate (50) is located at the second closed position, a second gap L1 is provided between the first air guide plate (40) and the second air guide plate (50), wherein 4 mm ≤ L1 ≤ 6 mm.

15. The indoor unit according to claim 1, characterized in that: An end portion of the second air guide plate (50) facing one end of the first air guide plate (40) is provided with an inclined surface (51), and the inclined surface (51) is located on the inner side of the second air guide plate (50).

16. The indoor unit according to claim 1, characterized in that: One end of the second air guide plate (50) close to the top of the panel (20) is provided with a microporous structure.

17. The indoor unit according to claim 1, characterized in that: The first air guide plate (40) comprises: A plate body (41), along the length direction of the plate body (41), an outer surface of a first end of the plate body (41) is provided with a first inclined surface (411), and an outer surface of a second end of the plate body (41) is provided with a second inclined surface (412); when the plate body (41) is located at the first closed position, a third gap is provided between the first inclined surface (411) and the panel body (90), and a fourth gap is provided between the second inclined surface (412) and the panel body (90).

18. The indoor unit according to claim 17, characterized in that: The width of the third gap or the fourth gap is L2, wherein 0.2 mm≤L2≤0.4 mm.

19. The indoor unit according to claim 17, characterized in that: When the plate body (41) is located in the first closed position, a third inclined surface (413) is provided on the outer side of one end of the plate body (41) close to the lower side wall of the air outlet (30) along the width direction of the plate body (41), and a fifth gap is provided between the third inclined surface (413) and the lower side wall of the air outlet (30).

20. The indoor unit according to claim 19, characterized in that: The width of the fifth gap is L3, wherein 0.2 mm≤L3≤0.4 mm.

21. The indoor unit according to claim 19, characterized in that: A fourth inclined surface (414) is also provided at one end of the plate body (41) close to the lower side wall of the air outlet (30); the fourth inclined surface (414) is located on the inner side of the third inclined surface (413); and the fourth inclined surface (414) and the third inclined surface (413) are arranged at an angle.

22. The indoor unit according to claim 17, characterized in that: The panel body (90) is provided with a fifth inclined surface (91) that matches the first inclined surface (411), and the panel body (90) is provided with a sixth inclined surface (92) that matches the second inclined surface (412), and the fifth inclined surface (91) and the sixth inclined surface (92) are arranged opposite to each other along the width direction of the bottom shell (10).

23. The indoor unit according to claim 1, characterized in that: When the second air guide plate (50) is in the second closed position, a shielding flange (52) is provided at one end of the second air guide plate (50) close to the first air guide plate (40), and the shielding flange (52) is extended along the length direction of the second air guide plate (50). When the first air guide plate (40) is in the first closed position, the shielding flange (52) is located on the outer side of the first air guide plate (40).

24. A method for controlling an indoor unit, the method being used to control the indoor unit according to any one of claims 1 to 23, characterized in that: The method comprises the following steps: The cooling mode is turned on, the first air guide plate (40) is controlled to be located at the first closed position, the second air guide plate (50) is controlled to rotate to the second open position, and the air outlet (30) realizes the upper air outlet mode.

25. The method according to claim 24, characterized in that Turning on the heating mode, controlling the second air guide plate (50) to rotate along a preset trajectory around the second rotation center O2 to a first preset angle; The first air guide plate (40) is controlled to rotate along a preset trajectory to a second preset angle and then be located at the first open position, and the second air guide plate (50) is controlled to reset to the second closed position, so that the air outlet (30) realizes a downward air outlet mode.

26. The method according to claim 25, characterized in that The first preset angle is A, wherein 10°≤A≤20°, and / or The second preset angle is B, wherein 100°≤B≤120°.

27. An air conditioner, comprising an indoor unit, characterized in that: The indoor unit is the indoor unit according to any one of claims 1 to 23.

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