Indoor unit of air duct machine, air duct machine and its control method

Abstract

The present invention discloses an indoor unit of an air duct machine, the air duct machine and its control method. The indoor unit includes: a housing, a first indoor heat exchanger, a second indoor heat exchanger and a fan assembly. A first air duct and a second air duct are provided in the housing and separated from each other. The first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet. The first indoor heat exchanger is arranged in the first air duct; the second indoor heat exchanger is arranged in the second air duct; the first fan assembly includes a first impeller and a second impeller. The first impeller is arranged in the first air duct to drive air flow to flow from the first air inlet to the first air outlet, and the second impeller is arranged in the second air duct to drive air flow to flow from the second air inlet to the second air outlet. The indoor unit of the air duct machine according to the embodiment of the present invention can achieve dual use in one machine, realize the temperature adjustment of different partition spaces in the room, and has a simple structure, small occupied space, is convenient for installation, and is beneficial to cost reduction.

Description

Technical Field

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

[0002] Currently, when most buildings are designed, the indoor space is usually partitioned (for example, it can be divided into two areas: a living room and a dining room), and a corridor area is formed between the two partitioned spaces. The corridor area can be ceiling-treated, so that the indoor unit of the air duct machine can be hidden in the ceiling.

[0003] In order to meet the air conditioning requirements of the partitioned spaces (such as the living room and the dining room), an air conditioner is usually installed at each partitioned space. For example, when the partitioned spaces are the living room and the dining room, an air conditioner is installed at the living room and the dining room respectively. The air outlet of the living room air conditioner faces the living room, and the air outlet of the dining room air conditioner faces the dining room. The indoor units of the two sets of air conditioners, their connecting pipelines, drain pipes, power lines, communication lines, etc. all need to be hidden in the ceiling. At the same time, the installation of the two sets of units needs to meet the installation requirements, making the space in the ceiling area small, narrow and messy, and the construction cost is high. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. For this reason, an object of the present invention is to provide an indoor unit of an air duct machine, which can adjust the air in different indoor partitioned spaces, and occupies a small space and has a low cost.

[0005] Another object of the present invention is to provide an air duct machine having the above indoor unit.

[0006] Still another object of the present invention is to provide a control method for an air duct machine.

[0007] The indoor unit of the air duct machine according to the first aspect embodiment of the present invention includes: a housing, a first air duct and a second air duct separated from each other are provided in the housing, the first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet; a first indoor heat exchanger, the first indoor heat exchanger is provided in the first air duct; a second indoor heat exchanger, the second indoor heat exchanger is provided in the second air duct; and a fan assembly, the first fan assembly includes a first impeller and a second impeller, the first impeller is provided in the first air duct to drive the air flow to flow from the first air inlet to the first air outlet, and the second impeller is provided in the second air duct to drive the air flow to flow from the second air inlet to the second air outlet.

[0008] The indoor unit of the air duct machine according to an embodiment of the present invention can, by arranging a first air duct and a second air duct separated from each other in the housing, arranging a first indoor heat exchanger and a first air wheel in the first air duct, and arranging a second indoor heat exchanger and a second air wheel in the second air duct, exchange heat between the first indoor heat exchanger and the air flow entering the first air duct, and exchange heat between the second indoor heat exchanger and the air flow entering the second air duct. Furthermore, it can send air to different areas in the room through the first air outlet of the first air duct and the second air outlet of the second air duct, realizing the temperature adjustment of different partition spaces in the room, and has a simple structure, small occupied space, is easy to install, and is beneficial to cost reduction.

[0009] According to some embodiments of the present invention, the first air outlet and the second air outlet are respectively formed on both sides of the housing in a first direction, where the first direction is the width direction or the length direction of the housing.

[0010] According to some embodiments of the present invention, the first air inlet includes a first inlet and a second inlet, the first inlet is formed on the bottom wall of the housing, and the second inlet is formed on the side wall of the housing and is disposed opposite to the first air outlet; and / or the second air inlet includes a first entrance and a second entrance, the first entrance is formed on the bottom wall of the housing, and the second entrance is formed on the side wall of the housing and is disposed opposite to the second air outlet.

[0011] According to some embodiments of the present invention, it further includes: a first baffle, the first baffle is detachably disposed at the first inlet and / or the second inlet, and the first baffle is used to close one of the first inlet and the second inlet; and / or a second baffle, the second baffle is detachably disposed at the first entrance and / or the second entrance, and the second baffle is used to close one of the first entrance and the second entrance.

[0012] According to some embodiments of the present invention, the first air inlet is formed on the bottom wall of the housing or the side wall of the housing, and the second air inlet is formed on the bottom wall or the side wall of the housing.

[0013] According to some embodiments of the present invention, the first indoor heat exchanger and the second indoor heat exchanger are formed as an integral part.

[0014] According to some embodiments of the present invention, the heat exchange area of the first indoor heat exchanger is not equal to the heat exchange area of the second indoor heat exchanger.

[0015] According to some embodiments of the present invention, the wind wheel assembly further includes: a first driving member connected to the first wind wheel to drive the first wind wheel to rotate; a second driving member connected to the second wind wheel to drive the second wind wheel to rotate.

[0016] According to other embodiments of the present invention, the wind wheel assembly further includes: a third driving member connected to the first wind wheel; a connecting mechanism respectively connected to the first wind wheel and the second wind wheel, and the connecting mechanism is switchable between a connected state of connecting the first wind wheel and the second wind wheel and a disconnected state of disconnecting the connection between the first wind wheel and the second wind wheel.

[0017] In some embodiments of the present invention, the connecting mechanism is a gearbox.

[0018] The air duct machine according to the embodiment of the second aspect of the present invention includes the indoor unit according to the embodiment of the first aspect of the present invention above.

[0019] The air duct machine according to the embodiment of the second aspect of the present invention, by providing the indoor unit according to the embodiment of the first aspect of the present invention above, by providing a first air duct and a second air duct separated from each other in the housing, and providing a first indoor heat exchanger and a first wind wheel in the first air duct, and providing a second indoor heat exchanger and a second wind wheel in the second air duct, can exchange heat between the first indoor heat exchanger and the air flow entering the first air duct, and exchange heat between the second indoor heat exchanger and the air flow entering the second air duct, and further can send air to different areas of the room through the first air outlet of the first air duct and the second air outlet of the second air duct, so as to realize the temperature adjustment of different partition spaces in the room, and has a simple structure, small occupied space, is convenient for installation, and is beneficial to cost reduction.

[0020] The control method of the air duct machine according to the embodiment of the third aspect of the present invention includes: detecting a first target speed of the first wind wheel and a second target speed of the second wind wheel; determining whether the first target speed and the second target speed are equal; if the first target speed and the second target speed are equal, controlling the first wind wheel and the second wind wheel to run at the target speed for a preset duration, and then detecting a first temperature of the air supply area of the first air outlet and a second temperature of the air supply area of the second air outlet; determining whether the first temperature and the second temperature are equal, or determining whether the difference between the first temperature and the preset temperature and the difference between the second temperature and the preset temperature are equal; if the first temperature and the second temperature are not equal, or the difference between the first temperature and the preset temperature and the difference between the second temperature and the preset temperature are not equal, adjusting the actual running speed of the first wind wheel and / or the actual running speed of the second wind wheel to reduce or eliminate the difference between the first temperature and the second temperature.

[0021] The control method of the air duct machine according to the third aspect embodiment of the present invention can achieve temperature adjustment of different partition spaces in the room, and can reduce the temperature difference between different partition spaces, which is beneficial to improving the user's comfort.

[0022] The additional aspects and advantages of the present invention will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0024] Figure 1 is an installation schematic diagram of the indoor unit of the air duct machine according to the embodiment of the present invention;

[0025] Figure 2 is a perspective view of the indoor unit of the air duct machine according to the first embodiment of the present invention;

[0026] Figure 3 is Figure 2 another perspective view of the indoor unit of the air duct machine shown in

[0027] Figure 4 is Figure 2 the front view of the indoor unit of the air duct machine shown in

[0028] Figure 5 is along Figure 4 the sectional view taken along line A-A in

[0029] Figure 6 is along Figure 4 the sectional view taken along line B-B in

[0030] Figure 7 is Figure 2 the bottom view of the indoor unit of the air duct machine shown in

[0031] Figure 8 is along Figure 7 the sectional view taken along line C-C in

[0032] Figure 9 is a perspective view of the indoor unit of the air duct machine according to the second embodiment of the present invention;

[0033] Figure 10 is Figure 9 another perspective view of the indoor unit of the air duct machine shown in

[0034] Figure 11 is a perspective view of the internal structure of the indoor unit of the air duct machine according to the embodiment of the present invention;

[0035] Figure 12 is Figure 11 The bottom view of the indoor unit of the air duct machine shown in

[0036] Figure 13 Another perspective view of the internal structure of the indoor unit of the air duct machine according to an embodiment of the present invention;

[0037] Figure 14 is Figure 13 The bottom view of the indoor unit of the air duct machine shown in

[0038] Figure 15 is Figure 11 A schematic diagram of the internal structure of the indoor unit of the air duct machine shown in

[0039] Figure 16 A perspective view of the internal structure of the indoor unit of the air duct machine according to another embodiment of the present invention;

[0040] Figure 17 is Figure 16 A schematic diagram of the internal structure of the indoor unit of the air duct machine shown in

[0041] Figure 18 is Figure 16 A perspective view of the connecting mechanism shown in

[0042] Figure 19 is Figure 18 A schematic diagram of the connecting mechanism shown in

[0043] Figure 20 The control flow chart of the air duct machine according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] 100, indoor unit;

[0046] 1, housing; 11, first air duct; 111, first air inlet; 111a, first inlet; 111b, second inlet; 112, first air outlet; 12, second air duct; 121, second air inlet; 121a, first entrance; 121b, second entrance; 122, second air outlet; 13, partition; 131, first partition; 132, second partition; 14, bottom wall; 15, front side wall; 16, rear side wall;

[0047] 2, first indoor heat exchanger;

[0048] 3, second indoor heat exchanger;

[0049] 41, first air wheel; 42, second air wheel; 43, first driving member; 44, second driving member; 45, third driving member; 46, connecting mechanism; 461, input shaft; 462, output shaft; 463, transmission gear set;

[0050] 5. First baffle

[0051] 6. Second baffle

[0052] 7. Water receiving tray; 71. Drain outlet

[0053] 8. Electric control box; 9. Fixed lifting lug

[0054] 200. First partition; 300. Second air zone; 400. Corridor area Detailed implementation manner

[0055] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0056] The indoor unit 100 of the air duct machine according to an embodiment of the present invention will be described below with reference to the drawings. The indoor unit 100 of the air duct machine can be installed in the ceiling.

[0057] The indoor unit 100 of the air duct machine according to an embodiment of the present invention includes: a housing 1, a first indoor heat exchanger 2, a second indoor heat exchanger 3, and a fan assembly. Among them, the housing 1 can provide an installation space for the first indoor heat exchanger 2, the second indoor heat exchanger 3, and the fan assembly.

[0058] Specifically, a separated first air duct 11 and a second air duct 12 are provided in the housing 1. The first air duct 11 has a first air inlet 111 and a first air outlet 112, and the second air duct 12 has a second air inlet 121 and a second air outlet 122. The first air inlet 111, the first air outlet 112, the second air inlet 121, and the second air outlet 122 can all be formed on the housing 1. The shapes of the first air inlet 111, the first air outlet 112, the second air inlet 121, and the second air outlet 122 can be square, circular, oval, etc.

[0059] Refer to Figures 2 - 4 , the housing 1 can be formed into a cubic structure. Refer to Figures 11 - 14 , a partition 13 can be provided in the housing 1, and the first air duct 11 and the second air duct 12 are separated in the housing 1 through the partition 13. Among them, the first air duct 11 and the second air duct 12 can be in the length direction of the housing 1 (for example, Figure 11arranged in the left - right direction (in the figure). The first air duct 11 can be located on the left or right side of the second air duct 12. In this way, the widths of the first air duct 11 and the second air duct 12 can be the same, without additionally increasing the width of the housing 1, which is beneficial to reducing the overall occupied space of the housing 1 and facilitating the installation of the indoor unit 100 of the air duct machine.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0061] The first indoor heat exchanger 2 is arranged in the first air duct 11, and the second indoor heat exchanger 3 is arranged in the second air duct 12. The first fan assembly includes a first impeller 41 and a second impeller 42. The first impeller 41 is arranged in the first air duct 11 to drive the air flow to flow from the first air inlet 111 to the first air outlet 112, and the second impeller 42 is arranged in the second air duct 12 to drive the air flow to flow from the second air inlet 121 to the second air outlet 122. The numbers of the first impeller 41 and the second impeller 42 can be adjusted and designed according to the specifications and models of the indoor unit 100. For example, in Figure 12 the example, there are two first impellers 41 and one second impeller 42.

[0062] It can be understood that a heat exchange flow path can be formed between the first indoor heat exchanger 2 and the compressor and the outdoor heat exchanger of the air duct machine, and a heat exchange flow path can be formed between the second indoor heat exchanger 3 and the compressor and the outdoor heat exchanger of the air duct machine. The refrigerant can flow in the heat exchange flow path to enable the air duct machine to refrigerate or heat.

[0063] Among them, when the air duct machine is operating, the first impeller 41 and the second impeller 42 can work simultaneously, or the first impeller 41 can work while the second impeller 42 does not work, or the first impeller 41 does not work while the second impeller 42 works. When the first impeller 41 works, driven by the first impeller 41, the air flow can enter the first air duct 11 from the first air inlet 111 to exchange heat with the first indoor heat exchanger 2, and the heat - exchanged air flow can be blown out through the first air outlet 112. When the second impeller 42 works, driven by the second impeller 42, the air flow can enter the second air duct 12 from the second air inlet 121 to exchange heat with the second indoor heat exchanger 3, and the heat - exchanged air flow can be blown out through the second air outlet 122.

[0064] Thus, by providing a first air duct 11 and a second air duct 12 spaced apart from each other within the housing 1, and disposing a first indoor heat exchanger 2 and a first air impeller 41 within the first air duct 11, and a second indoor heat exchanger 3 and a second air impeller 42 within the second air duct 12, heat exchange can be achieved between the first indoor heat exchanger 2 and the air flow entering the first air duct 11, and between the second indoor heat exchanger 3 and the air flow entering the second air duct 12. Furthermore, air can be supplied to different areas of the room through the first air outlet 112 of the first air duct 11 and the second air outlet 122 of the second air duct 12, thereby realizing temperature adjustment for different partitioned spaces within the room. Moreover, the structure is simple, the occupied space is small, it is convenient for installation, and it is beneficial to cost reduction.

[0065] For example, during actual installation, the first air outlet 112 and the second air outlet 122 can be respectively connected to two different partitions. In a specific embodiment of the present invention, the first air outlet 112 can be connected to the living room, and the second air outlet 122 can be connected to the dining room. In this way, temperature adjustment for different partitions can be achieved by one indoor unit 100. Compared with the technical solution in the related art where two different indoor units 100 are used for temperature adjustment of different partitions, the occupied space of the indoor unit 100 is reduced, and the installation difficulty and overall cost are lowered.

[0066] For the indoor unit 100 of the air duct machine according to the embodiment of the present invention, by providing a first air duct 11 and a second air duct 12 spaced apart from each other within the housing 1, and disposing a first indoor heat exchanger 2 and a first air impeller 41 within the first air duct 11, and a second indoor heat exchanger 3 and a second air impeller 42 within the second air duct 12, heat exchange can be achieved between the first indoor heat exchanger 2 and the air flow entering the first air duct 11, and between the second indoor heat exchanger 3 and the air flow entering the second air duct 12. Furthermore, air can be supplied to different areas of the room through the first air outlet 112 of the first air duct 11 and the second air outlet 122 of the second air duct 12, thereby realizing temperature adjustment for different partitioned spaces within the room, achieving dual functions with one machine, and enabling the function of zoning air supply for the integrated machine. The structure is simple, the occupied space is small, it is convenient for installation, and it is beneficial to cost reduction.

[0067] According to some embodiments of the present invention, the first air outlet 112 and the second air outlet 122 are respectively formed on two sides of the housing 1 in a first direction, where the first direction is the width direction or the length direction of the housing 1.

[0068] Specifically, the first air outlet 112 and the second air outlet 122 can be respectively formed on two sides of the width direction of the housing 1 (for example, Figure 2 the front - rear direction in Figure 2On both sides of the left - right direction (in the figure). When the first air outlet 112 and the second air outlet 122 are respectively formed on both sides of the width direction of the housing 1, the indoor unit 100 can adjust the temperature of two partitions located in the width direction of the housing 1. When the first air outlet 112 and the second air outlet 122 are respectively formed on both sides of the length direction of the housing 1, the indoor unit 100 can adjust the temperature of two partitions located in the length direction of the housing 1. Among them, the specific positions of the first air outlet 112 and the second air outlet 122 can be adjusted and designed according to the specific specifications and models of the indoor unit 100.

[0069] In this way, the indoor unit 100 can be installed in the ceiling between two partitions, and air is sent to both sides of the first direction of the housing 1 through the indoor unit 100, realizing the temperature adjustment of different partition spaces in the room, realizing the function of the integrated machine's partition air supply. The structure is simple, occupies little space, is convenient for installation, and is beneficial to reducing costs.

[0070] For example, in Figure 1 the example, there is a first partition 200 and a second partition in the room. A corridor area 400 is formed between the first partition 200 and the second partition. The indoor unit 100 can be installed in the ceiling of the corridor area 400. The length direction of the housing 1 can extend along the length direction of the corridor. The first air outlet 112 and the second air outlet 122 can be respectively arranged on both sides of the width direction of the housing 1. The first air outlet 112 can communicate with the first partition 200, and the second air outlet 122 can communicate with the second partition. Since the length of the corridor area 400 is usually long, during assembly, only the size of the width direction of the housing 1 needs to be considered whether it is less than the width size of the corridor area 400, thereby reducing the size requirements of the indoor unit 100 for the installation space and expanding the applicable range of the indoor unit 100.

[0071] According to some embodiments of the present invention, the first air inlet 111 includes a first inlet 111a and a second inlet 111b. The first inlet 111a is formed on the bottom wall 14 of the housing 1, and the second inlet 111b is formed on the side wall of the housing 1 and is arranged opposite to the first air outlet 112, and / or the second air inlet 121 includes a first inlet 121a and a second inlet 121b. The first inlet 121a is formed on the bottom wall 14 of the housing 1, and the second inlet 121b is formed on the side wall of the housing 1 and is arranged opposite to the second air outlet 122.

[0072] Specifically, in some embodiments of the present invention, the first air inlet 111 can be made to include a first inlet 111a and a second inlet 111b, where the first inlet 111a is formed on the bottom wall 14 of the housing 1, and the second inlet 111b is formed on the side wall of the housing 1 and is arranged opposite to the first air outlet 112. For example, referring to Figure 6 and combining with Figure 7, the first air outlet 112 can be formed on the front side wall 15 of the housing 1, the first inlet 111a is formed on the bottom wall 14 of the housing 1, and the second inlet 111b can be formed on the rear side wall 16 of the housing 1. It can be understood that, in this embodiment, the second air inlet 121 can be disposed on the bottom wall 14 of the housing 1, or the second air inlet 121 can be disposed on the side wall of the housing 1 and is disposed opposite to the second air outlet 122.

[0073] Thus, by respectively providing the first inlet 111a and the second inlet 111b on the bottom wall 14 of the housing 1 and the side wall of the housing 1, the air intake volume of the first air duct 11 can be increased, and thus the air outlet volume of the first air duct 11 can be increased, improving the refrigeration or heating effect.

[0074] In other embodiments of the present invention, the second air inlet 121 can be made to include a first inlet 121a and a second inlet 121b. The first inlet 121a is formed on the bottom wall 14 of the housing 1, and the second inlet 121b is formed on the side wall of the housing 1 and is disposed opposite to the second air outlet 122. For example, referring to Figure 5 , the second air outlet 122 can be formed on the rear side wall 16 of the housing 1, the first inlet 121a can be formed on the bottom wall 14 of the housing 1, and the second inlet 121b can be formed on the front side wall 15 of the housing 1. It can be understood that, in this embodiment, the first air inlet 111 can be disposed on the bottom wall 14 of the housing 1, or the first air inlet 111 can be disposed on the side wall of the housing 1 and is disposed opposite to the first air outlet 112.

[0075] Thus, by respectively providing the first inlet 121a and the second inlet 121b on the bottom wall 14 of the housing 1 and the side wall of the housing 1, the air intake volume of the second air duct 12 can be increased, and thus the air outlet volume of the second air duct 12 can be increased, improving the refrigeration or heating effect.

[0076] In some embodiments of the present invention, the first air inlet 111 can be made to include a first inlet 111a and a second inlet 111b, wherein the first inlet 111a is formed on the bottom wall 14 of the housing 1, and the second inlet 111b is formed on the side wall of the housing 1 and is disposed opposite to the first air outlet 112. At the same time, the second air inlet 121 can be made to include a first inlet 121a and a second inlet 121b. The first inlet 121a is formed on the bottom wall 14 of the housing 1, and the second inlet 121b is formed on the side wall of the housing 1 and is disposed opposite to the second air outlet 122. Thus, the air intake volumes of the first air duct 11 and the second air duct 12 can be increased, and thus the air outlet volumes of the first air duct 11 and the second air duct 12 can be increased, improving the refrigeration or heating effect.

[0077] According to some embodiments of the present invention, the indoor unit 100 further includes a first baffle 5 and / or a second baffle 6. That is to say, the indoor unit 100 may include only the first baffle 5, may include only the second baffle 6, or may include both the first baffle 5 and the second baffle 6.

[0078] Wherein, the first baffle 5 is detachably disposed at the first inlet 111a and / or the second inlet 111b, and the first baffle 5 is used to close one of the first inlet 111a and the second inlet 111b. Specifically, the first baffle 5 may be disposed at the first inlet 111a or the second inlet 111b. The first baffle 5 may also be disposed at both the first inlet 111a and the second inlet 111b. For example, in Figure 3 the example of, a detachable first baffle 5 is provided at the second inlet 111b. Another example is that in Figure 10 the example of, a detachable first baffle 5 is provided at the first inlet 111a. In this way, during actual assembly, according to the actual installation environment, one of the first inlet 111a and the second inlet 111b can be closed by the first baffle 5, so that the air flow can enter the first air duct 11 from the unclosed inlet among the first inlet 111a and the second inlet 111b.

[0079] Therefore, the position of the first air inlet 111 can be flexibly selected according to the actual installation environment of the indoor unit 100, and only air inlet grilles, filters, etc. need to be provided at the unclosed inlet. On the one hand, the applicable range of the indoor unit 100 is expanded, and on the other hand, the structure of the indoor unit 100 is simplified and the cost is reduced.

[0080] It can be understood that in some embodiments of the present invention, when the indoor unit 100 leaves the factory, a detachable first baffle 5 may be disposed at the first inlet 111a or the second inlet 111b. For example, when the actual installation environment requires closing the first inlet 111a, if the first baffle 5 is installed at the first inlet 111a at this time, there is no need to disassemble the first baffle 5, and the indoor unit 100 can be directly assembled. If the first baffle 5 is installed at the second inlet 111b at this time, the first baffle 5 can be disassembled from the first inlet 111a and then installed at the second inlet 111b to close the second inlet 111b through the first baffle 5.

[0081] In some embodiments of the present invention, when the indoor unit 100 leaves the factory, a detachable first baffle 5 is provided at both the first inlet 111a and the second inlet 111b. When the first inlet 111a needs to be closed in the actual installation environment, it is only necessary to remove the first baffle 5 at the second inlet 111b, and there is no need to install the removed first baffle 5 at the first inlet 111a. When the second inlet 111b needs to be closed in the actual installation environment, the first baffle 5 at the first inlet 111a can be removed, and there is no need to install the removed first baffle 5 at the second inlet 111.

[0082] The second baffle 6 is detachably provided at the first inlet 121a and / or the second inlet 121b, and the second baffle 6 is used to close one of the first inlet 121a and the second inlet 121b. Specifically, the second baffle 6 can be provided at the first inlet 121a or the second inlet 121b, or the second baffle 6 can be provided at both the first inlet 121a and the second inlet 121b. For example, in Figure 2 the example of, a detachable second baffle 6 is provided at the second inlet 121b. Another example, referring to Figure 9 and combining with Figure 10 , a detachable second baffle 6 is provided at the first inlet 121a. In this way, during actual assembly, according to the actual installation environment, one of the first inlet 121a and the second inlet 121b can be closed by using the second baffle 6, so that the air flow can enter the first air duct 11 from the unclosed inlet among the first inlet 121a and the second inlet 121b.

[0083] Therefore, the position of the first air inlet 111 can be flexibly selected according to the actual installation environment of the indoor unit 100, and only air inlet grilles, filter nets, etc. need to be provided at the unclosed inlets. On the one hand, the applicable range of the indoor unit 100 is expanded, and on the other hand, the structure of the indoor unit 100 is simplified and the cost is reduced.

[0084] It can be understood that in some embodiments of the present invention, when the indoor unit 100 leaves the factory, a detachable second baffle 6 can be provided at the first inlet 121a or the second inlet 121b. For example, when the first inlet 121a needs to be closed in the actual installation environment, if the second baffle 6 is installed at the first inlet 121a at this time, there is no need to remove the second baffle 6, and the indoor unit 100 can be directly assembled. If the second baffle 6 is installed at the second inlet 121b at this time, the second baffle 6 can be removed from the first inlet 121a and then installed at the second inlet 121b to close the second inlet 121b through the second baffle 6.

[0085] In some embodiments of the present invention, when the indoor unit 100 leaves the factory, detachable second baffles 6 are provided at both the first inlet 121a and the second inlet 121b. When the actual installation environment requires closing the first inlet 121a, the second baffle 6 at the second inlet 121b can be removed, and there is no need to install the removed second baffle 6 at the first inlet 121a. When the actual installation environment requires closing the second inlet 121b, the second baffle 6 at the first inlet 121a can be removed, and there is no need to install the removed second baffle 6 at the second inlet 121b.

[0086] In some other embodiments of the present invention, the first air inlet 111 and the second air inlet 121 can both be one. At this time, the first air inlet 111 can be formed on the bottom wall 14 of the housing 1 or on the side wall of the housing 1, and the second air inlet 121 can be formed on the bottom wall 14 of the housing 1 or on the side wall of the housing 1. The user can select the indoor unit 100 model corresponding to different installation positions of the first air inlet 111 and the second air inlet 121 according to the actual installation environment to meet the installation requirements. Thus, the structure of the indoor unit 100 can be simplified and the production efficiency can be improved.

[0087] According to some embodiments of the present invention, the first indoor heat exchanger 2 and the second indoor heat exchanger 3 are formed as an integral part. That is to say, the first indoor heat exchanger 2 and the second indoor heat exchanger 3 are a whole. One part of this heat exchanger can be arranged in the first air duct 11 for heat exchange with the air flow in the first air duct 11, and the other part of this heat exchanger can be arranged in the second air duct 12 for heat exchange with the air flow in the second air duct 12. Thus, the connecting pipeline of the heat exchange flow path between the indoor heat exchanger (i.e., the first indoor heat exchanger 2 and the second indoor heat exchanger 3), the outdoor heat exchanger and the compressor can be simplified, thereby simplifying the structure of the air duct machine, reducing the overall cost of the air duct machine, and reducing the occupied space of the indoor unit 100.

[0088] As Figure 11 and Figure 12 shown, the first indoor heat exchanger 2 and the second indoor heat exchanger 3 are formed as an integral part. The partition 13 can include a first partition 13113 and a second partition 13213. As Figure 8 、 Figures 11 - 13 shown, the first partition 13113 and the second partition 13213 are respectively located on both sides of the indoor heat exchanger. Thus, the first air duct 11 and the second air duct 12 can be separated in the housing 1 by the first partition 13113 and the second partition 13213.

[0089] Optionally, the indoor heat exchanger is inclinedly arranged in the housing 1. Thus, the heat exchange area of the first indoor heat exchanger 2 and the second indoor heat exchanger 3 can be increased, and the refrigeration and heating effects can be improved.

[0090] Further, referring to Figure 13 and Figure 14 , the indoor unit 100 further includes a water receiving tray 7, and the water receiving tray 7 is disposed below the first indoor heat exchanger 2 and the second indoor heat exchanger 3. The water receiving tray 7 can be used to receive the condensed water on the first indoor heat exchanger 2 and the second indoor heat exchanger 3. Optionally, drain ports 71 are provided at both ends in the length direction of the water receiving tray 7. Thus, the condensed water on the water receiving tray 7 can be discharged outside the indoor unit 100 in a timely manner, avoiding damage to the components inside the indoor unit 100 by the condensed water.

[0091] According to some embodiments of the present invention, the heat exchange area of the first indoor heat exchanger 2 is not equal to the heat exchange area of the second indoor heat exchanger 3. It can be understood that the heat exchange areas of the first indoor heat exchanger 2 and the second indoor heat exchanger 3 can be adjusted and designed according to the areas of the zones corresponding to the first air outlet 112 and the second air outlet 122. For example, when the area of the air supply area corresponding to the first air outlet 112 is larger than the area of the air supply area corresponding to the second air outlet 122, the heat exchange area of the first indoor heat exchanger 2 can be made larger than the heat exchange area of the second indoor heat exchanger 3. When the area of the air supply area corresponding to the first air outlet 112 is smaller than the area of the air supply area corresponding to the second air outlet 122, the heat exchange area of the first indoor heat exchanger 2 can be made smaller than the heat exchange area of the second indoor heat exchanger 3. Thus, the refrigeration and heating effects of each zone can be ensured.

[0092] In some other embodiments of the present invention, when the area of the air supply area corresponding to the first air outlet 112 is equal to the area of the air supply area corresponding to the second air outlet 122 or the difference between the two is small, the heat exchange areas of the first indoor heat exchanger 2 and the second indoor heat exchanger 3 can also be set to be equal. Thus, the refrigeration and heating effects of each zone can also be ensured.

[0093] In some embodiments of the present invention, referring to Figures 12 - 15 , the wind wheel assembly further includes: a first driving member 43 and a second driving member 44. The first driving member 43 is connected to the first wind wheel 41 to drive the first wind wheel 41 to rotate, and the second driving member 44 is connected to the second wind wheel 42 to drive the second wind wheel 42 to rotate. Optionally, both the first driving member 43 and the second driving member 44 are motors. Thus, by providing the first driving member 43 and the second driving member 44, and driving the first wind wheel 41 to rotate through the first driving member 43 and driving the second wind wheel 42 to rotate through the second driving member 44, the first wind wheel 41 and the second wind wheel 42 can be independently controlled to work, so that it is possible to select whether to start the first wind wheel 41 and the second wind wheel 42 according to needs, which is beneficial to energy conservation.

[0094] In some other embodiments of the present invention, referring to Figure 16 and Figure 17, the wind wheel assembly further includes a third driving member 45 and a connecting mechanism 46. The third driving member 45 is connected to the first wind wheel 41, and the connecting mechanism 46 is respectively connected to the third driving member 45 and the second wind wheel 42. The connecting mechanism 46 is switchable between a connected state in which the first wind wheel 41 and the second wind wheel 42 are connected and a disconnected state in which the connection between the first wind wheel 41 and the second wind wheel 42 is disconnected.

[0095] Specifically, when the connecting mechanism 46 is in the connected state of connecting the first wind wheel 41 and the second wind wheel 42, when the third driving member 45 works, it can drive the first wind wheel 41 to rotate, and the rotation of the first wind wheel 41 can drive the second wind wheel 42 to rotate. Thus, by providing one driving member, the first wind wheel 41 and the second wind wheel 42 can be driven to rotate simultaneously, which can simplify the structure of the indoor unit 100 and save costs.

[0096] When the connecting mechanism 46 is in the disconnected state of disconnecting the connection between the first wind wheel 41 and the second wind wheel 42, when the third driving member 45 works, it can drive the first wind wheel 41 to rotate. At this time, since the first wind wheel 41 and the second wind wheel 42 are disconnected, the second wind wheel 42 does not rotate. Thus, when it is not necessary to adjust the temperature of the partition corresponding to the second air outlet 122, the connection between the first wind wheel 41 and the second wind wheel 42 can be disconnected to reduce energy consumption and save costs.

[0097] In some embodiments of the present invention, the connecting mechanism 46 is a gearbox. The gearbox can be used to change the output speed so that the output speed is different from the input speed. Specifically, by setting the connecting mechanism 46 as a gearbox, the rotation speeds of the first wind wheel 41 and the second wind wheel 42 can be different, so that the rotation speed of the second wind wheel 42 can be designed according to actual needs to ensure the refrigeration and heating effects.

[0098] In some embodiments of the present invention, referring to Figure 18 and Figure 19 , the gearbox includes an input shaft 461, an output shaft 462 and a transmission gear set 463. Both the input shaft 461 and the output shaft 462 are connected to the transmission gear set 463. Among them, the input shaft 461 can be connected to the first wind wheel 41 or the third driving member 45, and the output shaft 462 can be connected to the second wind wheel 42. Thus, it can be conveniently realized that the first wind wheel 41 and the second wind wheel 42 have different rotation speeds, and the structure is simple and the cost is low.

[0099] Other components of the indoor unit 100 of the air duct machine according to the embodiments of the present invention, such as the fixed lifting lugs 9, the electric control box 8, etc., are known to those of ordinary skill in the art and will not be described in detail here.

[0100] The air duct machine according to the second aspect embodiment of the present invention includes the indoor unit 100 according to the first aspect embodiment of the present invention above.

[0101] According to the air duct machine of the second aspect embodiment of the present invention, by providing the indoor unit 100 according to the above first aspect embodiment of the present invention, by providing a first air duct 11 and a second air duct 12 spaced apart from each other in the housing 1, and providing a first indoor heat exchanger 2 and a first air wheel 41 in the first air duct 11, and providing a second indoor heat exchanger 3 and a second air wheel 42 in the second air duct 12, heat exchange can be performed between the first indoor heat exchanger 2 and the air flow entering the first air duct 11, and heat exchange can be performed between the second indoor heat exchanger 3 and the air flow entering the second air duct 12. Furthermore, air can be supplied to different areas of the room through the first air outlet 112 of the first air duct 11 and the second air outlet 122 of the second air duct 12, realizing temperature adjustment of different partition spaces in the room, and having a simple structure, small occupied space, convenient installation, and being beneficial to cost reduction.

[0102] Other components of the air duct machine according to the embodiments of the present invention, such as the outdoor heat exchanger, compressor, etc., are known to those of ordinary skill in the art and will not be described in detail here.

[0103] The control method of the air duct machine according to the third aspect embodiment of the present invention includes:

[0104] S10: Detect the first target speed of the first air wheel 41 and the second target speed of the second air wheel 42;

[0105] S20: Determine whether the first target speed and the second target speed are equal;

[0106] S30: If the first target speed and the second target speed are equal, control the first air wheel 41 and the second air wheel 42 to run at the target speed for a preset duration, and then detect the first temperature in the air supply area of the first air outlet 112 and the second temperature in the air supply area of the second air outlet 122;

[0107] Among them, the preset duration can be adjusted and designed according to the specific specifications and models of the air duct machine. For example, in some embodiments of the present invention, the preset duration can be 1 min to 100 min. The first temperature is the ambient temperature in the air supply area of the first air outlet 112, and the second temperature is the ambient temperature in the air supply area of the second air outlet 122. The first temperature and the second temperature can be obtained by collecting through an ambient temperature sensor, a wired controller or a remote controller.

[0108] In addition, in some embodiments of the present invention, when the first target speed and the second target speed are not equal, control the first air wheel 41 to run at the first target speed and control the second air wheel 42 to run at the second target speed.

[0109] S40: Determine whether the first temperature and the second temperature are equal, or determine whether the difference between the first temperature and the preset temperature is equal to the difference between the second temperature and the preset temperature;

[0110] That is to say, in this step, it is judged whether the first temperature is equal to the second temperature, or whether "(the first temperature - the preset temperature)" is equal to "(the second temperature - the preset temperature)".

[0111] S50: If the first temperature and the second temperature are not equal, or the difference between the first temperature and the preset temperature is not equal to the difference between the second temperature and the preset temperature, adjust the actual operating speed of the first air wheel 41 and / or the actual operating speed of the second air wheel 42 to reduce or eliminate the difference between the first temperature and the second temperature.

[0112] Specifically, when the first temperature and the second temperature are not equal, or when the difference between the first temperature - the preset temperature and the second temperature - the preset temperature is not equal, the speed of the first air wheel 41 can be adjusted, or the speed of the second air wheel 42 can be adjusted, or the speeds of the first air wheel 41 and the second air wheel 42 can be adjusted simultaneously, so as to reduce the difference between the first temperature and the second temperature, or make the first temperature equal to the second temperature. Thus, the temperature difference between the air supply areas of the first air outlet 112 and the second air outlet 122 can be reduced, improving the comfort of the user.

[0113] For example, in the cooling mode, when the first target speed of the first air wheel 41 is equal to the second target speed of the second air wheel 42, after the first air wheel 41 and the second air wheel 42 operate at the target speed for a preset duration, the first temperature and the second temperature are detected;

[0114] If the first temperature - the preset temperature is greater than the second temperature - the preset temperature, every first time interval t, the speed of the first air wheel 41 can be increased by A revolutions per minute, and at the same time, the speed of the second air wheel 42 can be decreased by B revolutions per minute, where the value range of A can be 1 to 1000, and the value range of B can be 1 to 1000. The adjusted speed of the first air wheel 41 can be 1 to 2 times the first target speed, and the adjusted speed of the second air wheel 42 can be 0.01 to 0.99 times the second target speed.

[0115] If the first temperature - the preset temperature is less than the second temperature - the preset temperature, every first time interval t, the speed of the first air wheel 41 can be decreased by C revolutions per minute, and at the same time, the speed of the second air wheel 42 can be increased by D revolutions per minute, where the value range of C can be 1 to 1000, and the value range of D can be 1 to 1000. The adjusted speed of the first air wheel 41 can be 0.01 to 0.99 times the first target speed, and the adjusted speed of the second air wheel 42 can be 1 to 2 times the second target speed.

[0116] Optionally, the first time interval t can be 1 to 600 seconds.

[0117] If the first temperature - preset temperature is less than the second temperature - preset temperature, the first air wheel 41 and the second air wheel 42 maintain their current rotational speeds unchanged.

[0118] In the heating mode, when the first target rotational speed of the first air wheel 41 is equal to the second target rotational speed of the second air wheel 42, after the first air wheel 41 and the second air wheel 42 operate at the target rotational speed for a preset duration, the first temperature and the second temperature are detected;

[0119] If the first temperature - preset temperature is greater than the second temperature - preset temperature, every first time interval t, the rotational speed of the first air wheel 41 can be reduced by A revolutions per minute, and at the same time, the rotational speed of the second air wheel 42 can be increased by B revolutions per minute, where the value range of A can be 1 - 1000, and the value range of B can be 1 - 1000. The adjusted rotational speed of the first air wheel 41 can be 0.01 - 0.99 times the first target rotational speed, and the adjusted rotational speed of the second air wheel 42 can be 1 - 2 times the second target rotational speed.

[0120] If the first temperature - preset temperature is less than the second temperature - preset temperature, every first time interval t, the rotational speed of the first air wheel 41 can be increased by C revolutions per minute, and at the same time, the rotational speed of the second air wheel 42 can be reduced by D revolutions per minute, where the value range of C can be 1 - 1000, and the value range of D can be 1 - 1000. The adjusted rotational speed of the first air wheel 41 can be 1 - 2 times the first target rotational speed, and the adjusted rotational speed of the second air wheel 42 can be 0.01 - 0.99 times the second target rotational speed.

[0121] Optionally, the first time interval t can be 1 - 600 seconds.

[0122] If the first temperature - preset temperature is less than the second temperature - preset temperature, the first air wheel 41 and the second air wheel 42 maintain their current rotational speeds unchanged.

[0123] According to the control method of the air duct machine in the third aspect embodiment of the present invention, the temperature adjustment of different partition spaces in the room can be realized, and the temperature difference between different partition spaces can be reduced, which is beneficial to improving the user's comfort.

[0124] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0125] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A control method for an air duct machine, characterized in that, The air duct machine includes an indoor unit, and the indoor unit includes: a housing, a fan assembly, a first indoor heat exchanger, and a second indoor heat exchanger. A first air duct and a second air duct are separatedly provided in the housing. The first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet. The first indoor heat exchanger is provided in the first air duct. The second indoor heat exchanger is provided in the second air duct. The fan assembly includes a first impeller and a second impeller. The first impeller is provided in the first air duct to drive air flow to flow from the first air inlet to the first air outlet, and the second impeller is provided in the second air duct to drive air flow to flow from the second air inlet to the second air outlet. The control method of the air duct machine includes: detecting a first target speed of the first impeller and a second target speed of the second impeller; judging whether the first target speed and the second target speed are equal; if the first target speed and the second target speed are equal, after controlling the first impeller and the second impeller to operate at the target speed for a preset duration, detecting a first temperature in the air supply area of the first air outlet and a second temperature in the air supply area of the second air outlet; judging whether the first temperature and the second temperature are equal, or judging whether the difference between the first temperature and a preset temperature is equal to the difference between the second temperature and the preset temperature; if the first temperature and the second temperature are not equal, or the difference between the first temperature and the preset temperature is not equal to the difference between the second temperature and the preset temperature, adjusting the actual operating speed of the first impeller and / or the actual operating speed of the second impeller to reduce or eliminate the difference between the first temperature and the second temperature.

2. An air duct machine, applicable to the control method of the air duct machine described in claim 1, characterized in that, The air duct machine includes an indoor unit, and the indoor unit includes: a housing, in which a first air duct and a second air duct are separatedly provided. The first air duct has a first air inlet and a first air outlet, and the second air duct has a second air inlet and a second air outlet; a first indoor heat exchanger, which is provided in the first air duct; a second indoor heat exchanger, which is provided in the second air duct; and a fan assembly, which includes a first impeller and a second impeller. The first impeller is provided in the first air duct to drive air flow to flow from the first air inlet to the first air outlet, and the second impeller is provided in the second air duct to drive air flow to flow from the second air inlet to the second air outlet.

3. The air duct machine according to claim 2, wherein The first air outlet and the second air outlet are respectively formed on two sides of the housing in a first direction, where the first direction is the width direction or the length direction of the housing.

4. The air duct machine according to claim 2, characterized in that, The first air inlet includes a first inlet and a second inlet. The first inlet is formed on the bottom wall of the housing, and the second inlet is formed on the side wall of the housing and is oppositely arranged to the first air outlet; and / or The second air inlet includes a first entrance and a second entrance. The first entrance is formed on the bottom wall of the housing, and the second entrance is formed on the side wall of the housing and is oppositely arranged to the second air outlet.

5. The air duct machine according to claim 4, characterized in that, It further includes: A first baffle plate, which is detachably arranged at the first inlet and / or the second inlet, and is used for closing one of the first inlet and the second inlet; and / or A second baffle plate, which is detachably arranged at the first entrance and / or the second entrance, and is used for closing one of the first entrance and the second entrance.

6. The air duct machine according to claim 2, characterized in that, The first air inlet is formed on the bottom wall or the side wall of the housing, and the second air inlet is formed on the bottom wall or the side wall of the housing.

7. The air duct machine according to claim 2, wherein, The first indoor heat exchanger and the second indoor heat exchanger are formed as an integral part.

8. The air duct machine according to claim 2 or 7, characterized in that, The heat exchange area of the first indoor heat exchanger is not equal to the heat exchange area of the second indoor heat exchanger.

9. The air duct machine according to claim 2, wherein The fan assembly further includes: A first driving member, which is connected to the first wind wheel to drive the first wind wheel to rotate; A second driving member, which is connected to the second wind wheel to drive the second wind wheel to rotate.

10. The air duct machine according to claim 2, wherein, The fan assembly further includes: A third driving member, which is connected to the first wind wheel; A connecting mechanism, which is respectively connected to the first wind wheel and the second wind wheel, and can be switched between a connected state of connecting the first wind wheel and the second wind wheel and a disconnected state of disconnecting the connection between the first wind wheel and the second wind wheel.

11. The air duct machine according to claim 10, wherein, The connecting mechanism is a gearbox.

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