Integrated air conditioner with fresh air device and control method of integrated air conditioner

Abstract

The invention provides an integrated air conditioner with a fresh air device and a control method thereof.The air conditioner comprises the fresh air device, the fresh air device comprises a fresh air duct shell and a fresh air fan located in an air duct of the fresh air duct shell, and a fresh air inlet and a fresh air outlet are formed in the fresh air duct shell; the integrated air conditioner further comprises a middle partition plate dividing the space in the shell into an indoor side and an outdoor side, the middle partition plate is provided with an overflowing opening correspondingly communicating with the fresh air inlet, and the fresh air duct shell can be driven to rotate so that the fresh air duct shell can be switched between the through-flow position and the cut-off position. The fresh air inlet is in butt joint with the overflowing opening, and when the fresh air duct shell is located at the cut-off position, the overflowing opening blocks the fresh air duct shell. According to the air conditioner, the number of assembly parts is reduced, the structural design is simplified, the structure of the air conditioner is more compact, and the production cost can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of air conditioning, and in particular relates to an integrated air conditioner with a fresh air device and a control method thereof. Background Art

[0002] PTAC through-the-wall units (Package Terminal Air Conditioner) with fresh air exchange function are mostly used in hotels, so the user experience and merchant costs are more important. Currently, related products have complex structures and high costs, which have a great impact on the performance of the entire machine.

[0003] In the related art, a fresh air device is arranged in the wall-penetrating machine, and the fresh air on the outdoor side is introduced into the indoor side through the operation of the fresh air fan in the fresh air device, thereby improving the air quality on the indoor side. In some related technical schemes, a corresponding damper is arranged at the fresh air inlet of the fresh air device, so that when there is no need to introduce fresh air (for example, when the indoor air quality is higher than the outdoor air quality), the fresh air inlet can be closed by controlling the damper to prevent the external air of lower quality from entering the indoor side through the fresh air inlet. This method of separately configuring a damper at the fresh air inlet to control its on and off results in relatively more assembled parts and a less compact structure. In particular, when dehumidification components and the like are arranged at the fresh air inlet, the structural design becomes more complicated. Summary of the invention

[0004] Therefore, the present invention provides an integrated air conditioner with a fresh air device and a control method thereof, which can overcome the technical problems in the related art of separately configuring a damper at the fresh air inlet to control its on and off, resulting in relatively more assembled parts, less compact structure and more complex structural design.

[0005] In order to solve the above-mentioned problems, the present invention provides an integrated air conditioner with a fresh air device, including a fresh air device, wherein the fresh air device includes a fresh air duct shell and a fresh air fan in the air duct of the fresh air duct shell, the fresh air duct shell is formed with a fresh air inlet and a fresh air outlet, the integrated air conditioner also includes a middle partition plate which divides the space inside the shell into an indoor side and an outdoor side, the middle partition plate has a flow port which is arranged to communicate with the fresh air inlet, the fresh air duct shell can be driven to rotate so as to switch between a flow position and a cut-off position, when the fresh air duct shell is in the flow position, the fresh air inlet is connected to the flow port, and when the fresh air duct shell is in the cut-off position, the flow port is blocked by the fresh air duct shell.

[0006] In some embodiments, the fresh air duct housing includes a relatively assembled fresh air volute and a fresh air volute tongue, wherein when the fresh air duct housing is in the cut-off position, the fresh air volute blocks the flow port; and / or the fresh air device is located on the indoor side.

[0007] In some embodiments, the indoor side has an indoor air supply duct, a accommodating space is formed between the lower part of the indoor air supply duct and the middle partition, and the fresh air device is located in the accommodating space.

[0008] In some embodiments, a fresh air supply port is formed on the air duct wall of the indoor air supply duct, and the fresh air outlet is connected to the fresh air supply port.

[0009] In some embodiments, an air guide frame is formed on one side of the flow port located on the indoor side, and the air guide frame can be matched and fit with the outer side surface of the fresh air volute.

[0010] In some embodiments, the middle partition has a bending section that can block one end of the fresh air duct shell and extend toward the indoor side, the fresh air device also includes a first drive motor for driving the fresh air volute to rotate and move, and the fresh air fan includes a second drive motor connected to the first end of the fan blade, and the first drive motor and the second drive motor are both assembled on the wall surface of the bending section away from the inner side of the fresh air duct shell.

[0011] In some embodiments, a driving gear is provided on the output shaft of the first drive motor, a driven gear ring is formed at one end of the fresh air volute corresponding to the position of the first drive motor, and the driving gear is meshed with the driven gear ring; and / or, the fan blade is a cross-flow fan blade; and / or, the second end of the fan blade is supported on a chassis of the air conditioner via a supporting rotating frame.

[0012] In some embodiments, the integrated air conditioner also includes an indoor heat exchanger, an outdoor heat exchanger and a throttling element connected in series between the indoor heat exchanger and the outdoor heat exchanger, the throttling element is connected to the indoor heat exchanger through a first pipeline and a first on-off valve is provided on the first pipeline, a fresh air heat exchanger is provided on the side of the flow port on the indoor side, the indoor heat exchanger and the outdoor heat exchanger are also connected through a second pipeline, the second pipeline is connected in parallel with the first pipeline, and the fresh air heat exchanger and the second on-off valve are connected in series on the second pipeline; and / or, the integrated air conditioner is one of a through-the-wall air conditioner, a window air conditioner or a mobile air conditioner.

[0013] The present invention also provides a control method for the above-mentioned integrated air conditioner with a fresh air device, comprising the following steps:

[0014] Acquire the operating mode of the air conditioner;

[0015] When the operation mode is the fresh air introduction mode, the fresh air duct housing is controlled to rotate along a first rotation direction by a preset angle so that the fresh air inlet is opened; or

[0016] When the operation mode is to end the fresh air introduction mode, the fresh air duct housing is controlled to rotate by a preset angle in a direction opposite to the first rotation direction so that the fresh air inlet is closed.

[0017] In some embodiments, when the air conditioner includes a fresh air heat exchanger:

[0018] When high-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and the first on-off valve is controlled to be cut off and the second on-off valve is controlled to be turned on; or,

[0019] When low-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and both the first on-off valve and the second on-off valve are controlled to be turned on; or,

[0020] When high-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a heating mode, and the first on-off valve is controlled to be cut off and the second on-off valve is controlled to be turned on; or,

[0021] When low-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a heating mode, and the first on-off valve and the second on-off valve are controlled to be turned on.

[0022] The present invention provides an integrated air conditioner with a fresh air device and a control method thereof, which has the following features:

[0023] Beneficial effects:

[0024] The fresh air duct housing of the fresh air device can be driven to rotate to switch between the flow position and the cut-off position, thereby realizing the selective blocking and docking connection of the flow port on the middle partition, so that there is no need to configure a corresponding damper structure for the opening and closing of the flow port, thereby reducing the number of assembled parts, simplifying the structural design, making the structure of the air conditioner more compact, and reducing the production cost;

[0025] The fresh air device is located on the indoor side, that is, on the side of the middle partition close to the indoor room, so that the fresh air device can reduce the space occupied by the outdoor side of the air conditioner and prevent the adverse effect on the air flow of the outdoor heat exchanger;

[0026] The fresh air device is arranged in the accommodation space between the lower part of the indoor air supply duct and the middle partition. Since the space is objectively generated by the structure of the indoor air supply duct, the accommodation space is fully utilized without increasing the overall size of the air conditioner, thereby making the air conditioner structure more compact and smaller in size.

[0027] The flow port is fitted with the outer side of the fresh air volute through the air guide frame, which can ensure that the introduced fresh air has no leakage when the fresh air duct housing is in the flow-through position;

[0028] By arranging a bending section on the middle partition, the bending section can form a seal on the shaft end of the fresh air duct housing to prevent fresh air leakage, and at the same time, it also serves as an assembly carrier for the first drive motor and the second drive motor, further simplifying the internal structure design of the air conditioner, and further improving the compactness of the structure;

[0029] The first pipeline and the second pipeline are connected in parallel between the indoor heat exchanger and the throttling element, so that the flow of refrigerant in the first pipeline or the second pipeline can be controlled by controlling the on-off state of the first on-off valve and the second on-off valve, thereby realizing the selection of the action state of the fresh air heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. The drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0031] Figure 1 is a schematic diagram of the three-dimensional structure of an integrated air conditioner with a fresh air device in an embodiment of the present invention (partial structure, such as the upper part of the housing, is omitted);

[0032] Figure 2 yes Figure 1 Schematic diagram of the three-dimensional structure of the medium fresh air device;

[0033] Figure 3 yes Figure 2 The structural exploded diagram of the fresh air device in the figure;

[0034] Figure 4 yes Figure 1 A schematic diagram of the integrated air conditioner in the state where the fresh air duct housing is in a cut-off position;

[0035] Figure 5 yes Figure 1 A schematic diagram of the integrated air conditioner in the state where the fresh air duct housing is in the flow-through position;

[0036] Figure 6 yes Figure 1 A schematic diagram of the three-dimensional structure of the middle partition in FIG.

[0037] Figure 7 yes Figure 1 A schematic diagram of a system principle of an integrated air conditioner;

[0038] Figure 8 yes Figure 7 Schematic diagram of the refrigerant flow direction when the integrated air conditioner in the heating mode is running. At this time, the fresh air can be preheated by the fresh air heat exchanger;

[0039] Fig. 9 yes Figure 7 Schematic diagram of the refrigerant flow when the integrated air conditioner is running in cooling mode. At this time, the fresh air can be dehumidified through the fresh air heat exchanger.

[0040] The accompanying drawings are marked as follows:

[0041] 1. Fresh air device; 101. Fresh air inlet; 102. Fresh air outlet; 11. Fresh air duct housing; 111. Fresh air volute; 1111. Driven gear ring; 112. Fresh air volute tongue; 12. Fresh air fan; 121. Fan blade; 13. First drive motor; 131. Driving gear; 14. Second drive motor; 141. Motor housing; 142. Motor end cover; 15. Fresh air heat exchanger; 16 , support rotating frame; 2, middle partition; 21, flow port; 211, air guide frame; 22, bending section; 31, indoor air supply duct; 32, indoor heat exchanger; 33, indoor fan; 34, auxiliary electric heater; 4, chassis; 51, outdoor heat exchanger; 52, throttling element; 61, first on-off valve; 62, second on-off valve; 71, compressor; 72, gas-liquid separator; 73, four-way reversing valve. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0044] 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° or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0045] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0046] See also Figures 1 to 9As shown, according to an embodiment of the present invention, an integrated air conditioner with a fresh air device is provided. The aforementioned integrated air conditioner is specifically one of a through-the-wall air conditioner, a window air conditioner or a mobile air conditioner. The integrated air conditioner includes a fresh air device 1, and the fresh air device 1 is used to introduce outdoor air into an indoor space. The fresh air device 1 includes a fresh air duct housing 11 and a fresh air fan 12 in the air duct of the fresh air duct housing 11. The fresh air duct housing 11 is formed with a fresh air inlet 101 and a fresh air outlet 102. The body air conditioner also includes a middle partition 2 which divides the space inside its shell into an indoor side and an outdoor side. The middle partition 2 has a flow port 21 which is arranged to communicate with the fresh air inlet 101. The fresh air duct shell 11 can be driven to rotate so as to switch between a flow position and a cut-off position. When the fresh air duct shell 11 is in the flow position, the fresh air inlet 101 is connected to the flow port 21. When the fresh air duct shell 11 is in the cut-off position, the flow port 21 blocks the fresh air duct shell 11.

[0047] In this technical solution, the fresh air duct shell 11 of the fresh air device 1 can be driven to rotate to switch itself between the flow position and the cut-off position, thereby realizing the selective blocking and docking connection of the aforementioned flow port 21 on the middle partition 2, thereby eliminating the need to configure a corresponding damper structure for the opening and closing of the flow port 21, reducing the number of assembled parts, simplifying the structural design, making the structure of the air conditioner more compact, and reducing production costs.

[0048] In some embodiments, the fresh air duct housing 11 includes a relatively assembled fresh air volute 111 and a fresh air volute tongue 112 , wherein when the fresh air duct housing 11 is in the cut-off position, the fresh air volute 111 blocks the flow port 21 .

[0049] In this technical solution, the relatively assembled fresh air volute 111 and the fresh air volute tongue 112 are assembled together to form a fresh air duct housing 11, which can facilitate the assembly of the fresh air fan 12 in the air duct cavity formed by the two. At the same time, the fresh air volute 111 has a larger physical area, and the aforementioned flow port 21 is blocked by it, so that the flow area of ​​the flow port 21 can be designed to be relatively large, thereby ensuring an increase in the fresh air volume.

[0050] In some embodiments, the fresh air device 1 is located on the indoor side, that is, on the side of the middle partition 2 close to the indoor room. This can reduce the occupation of the outdoor space of the air conditioner by the fresh air device 1 and prevent adverse effects on the incoming air flow of the outdoor heat exchanger 51.

[0051] In some embodiments, the indoor side has an indoor air supply duct 31, and a accommodating space (not marked in the figure) is formed between the lower part of the indoor air supply duct 31 and the middle partition 2, and the fresh air device 1 is located in the accommodating space.

[0052] In this technical solution, the fresh air device 1 is arranged in the accommodating space between the lower part of the indoor air supply duct 31 and the middle partition 2. Since this space is objectively generated by the structure of the indoor air supply duct 31, the accommodating space is fully utilized without increasing the overall size of the air conditioner, thereby making the air conditioner structure in the present invention more compact and smaller in size.

[0053] In some embodiments, a fresh air supply port (not marked in the figure) is formed on the air duct wall of the indoor air supply duct 31, and the fresh air outlet 102 is connected to the fresh air supply port.

[0054] In this technical solution, a fresh air supply port connected to the fresh air outlet 102 is directly formed on the air duct wall of the indoor air supply duct 31, which can further simplify the structural design of the air conditioner. At the same time, the drive of the indoor fan 33 can also be used to assist the introduction of fresh air, thereby ensuring an increase in the fresh air volume on the indoor side.

[0055] Specifically refer to Figure 4. In a specific embodiment, the aforementioned fresh air supply outlet is specifically located in the indoor supply air duct 31 corresponding to the area between the indoor fan 33 and the indoor heat exchanger 32. In this way, the indoor return air and the outdoor fresh air can be evenly mixed in the indoor fan 33 and then blown out into the indoor space, thereby improving the user experience.

[0056] In another specific embodiment, an auxiliary electric heater 34 is further provided on the indoor side to assist in heating the airflow when the air conditioner operates in a heating mode, thereby improving the heating effect.

[0057] See also Figure 6 As shown, in some embodiments, an air guide frame 211 is formed on one side of the flow port 21 on the indoor side, and the air guide frame 211 can be matched and fitted with the outer side surface of the fresh air volute 111 (that is, the outer wall surface of the air duct). In a specific embodiment, the aforementioned air guide frame 211 is integrally formed by the middle partition plate 2 by stamping and bending, which can simplify the molding process of the air guide frame 211 and ensure its sealing and air guiding performance.

[0058] In this technical solution, the flow port 21 forms a close fit with the outer side surface of the fresh air volute 111 through the air guide frame 211, which can ensure that the introduced fresh air is leak-free when the fresh air duct housing 11 is in the flow-through position.

[0059] In some embodiments, the middle partition 2 has a bending section 22 that can block one end of the fresh air duct housing 11 and extend toward the indoor side. The fresh air device 1 also includes a first drive motor 13 (such as a rotary stepping motor) for driving the fresh air volute 111 to rotate and move. The fresh air fan 12 includes a second drive motor 14 (such as a rotary stepping motor) that drives the first end of the fan blade 121. The first drive motor 13 and the second drive motor 14 are both assembled on the wall of the bending section 22 away from the inner side of the fresh air duct housing 11. Specifically, the bending angle of the aforementioned bending section 22 can be designed to be 90°. For details, see Figure 3 As shown, the second drive motor 14 is located in a motor protection cover, which includes a motor cover 141 and a motor end cover 142 that are interlocked.

[0060] In this technical solution, a bending section 22 is provided on the middle partition plate 2, so that the bending section 22 can form a seal on the axial end of the fresh air duct housing 11 to prevent fresh air leakage. At the same time, it also serves as an assembly carrier for the aforementioned first drive motor 13 and the second drive motor 14, further simplifying the internal structure design of the air conditioner and further improving the structural compactness.

[0061] See also Figure 2 and Figure 3 As shown, in some embodiments, a driving gear 131 is provided on the output shaft of the first drive motor 13, and a driven gear ring 1111 is formed at one end of the fresh air volute 111 corresponding to the position of the first drive motor 13, and the driving gear 131 is meshed with the driven gear ring 1111, and the aforementioned driven gear ring 1111 is specifically integrally formed on the fresh air volute 111, and is specifically implemented by an integral injection molding process.

[0062] In this technical solution, a driven gear ring 1111 is provided at one end of the shaft of the fresh air volute 111, and a reliable transmission connection is formed between the two through the meshing of the driving gear 131 on the output shaft of the first drive motor 13, so that the control is more reliable and accurate.

[0063] In a specific embodiment, the fan blade 121 is a cross-flow fan blade, so that the fresh air volume can be increased by selecting different axial lengths.

[0064] In a specific embodiment, the second end of the fan blade 121 is supported on the chassis 4 of the air conditioner via a supporting rotating frame 16. It can be understood that the fresh air duct housing 11 and the second end of the fan blade 121 are fitted inside and outside and supported on the supporting rotating frame 16 to ensure that the position of the fresh air device 1 is stable and reliable.

[0065] See Figure 7As shown, in some embodiments, the integrated air conditioner also includes an indoor heat exchanger 32, an outdoor heat exchanger 51 and a throttling element 52 connected in series between the indoor heat exchanger 32 and the outdoor heat exchanger 51, the throttling element 52 (specifically, an electronic expansion valve) is connected to the indoor heat exchanger 32 through a first pipeline (not labeled in the figure) and a first on-off valve 61 is provided on the first pipeline, a fresh air heat exchanger 15 is provided on one side of the flow port 21 on the indoor side, the indoor heat exchanger 32 and the outdoor heat exchanger 51 are also connected through a second pipeline (not labeled in the figure), the second pipeline is connected in parallel with the first pipeline, the fresh air heat exchanger 15 and the second on-off valve 62 are connected in series to the second pipeline, and the first on-off valve 61 and the second on-off valve 62 can be electromagnetic on-off valves.

[0066] In this technical solution, the first pipeline and the second pipeline are connected in parallel between the indoor heat exchanger 32 and the throttling element 52, so that the flow of refrigerant in the first pipeline or the second pipeline can be controlled by controlling the on-off state of the first on-off valve 61 and the second on-off valve 62, thereby realizing the selection of the action state of the fresh air heat exchanger 15.

[0067] See Figure 8 As shown, the figure shows the state of the integrated air conditioner of the present application running in the heating mode. At this time, when there is no need to introduce fresh air or only fresh air needs to be introduced without preheating the fresh air, the second on-off valve 62 can be controlled to be cut off and the first on-off valve 61 can be controlled to be turned on. In this way, no refrigerant flows through the fresh air heat exchanger 15, and the indoor heat exchanger 32 operates in the heating mode normally; when fresh air needs to be introduced and the fresh air needs to be preheated to a lower degree, the first on-off valve 61 and the second on-off valve 62 can be controlled to be opened at the same time. At this time, refrigerant flows through the fresh air heat exchanger 15, but due to the shunting effect of the first pipeline and the second pipeline, the heating capacity of the fresh air heat exchanger 15 is small, thereby achieving the purpose of low-speed heating; when fresh air needs to be introduced and the fresh air needs to be preheated to a higher degree, the second on-off valve 62 is controlled to be opened and the first on-off valve 61 is controlled to be cut off, so that all the refrigerant flows into the fresh air heat exchanger 15 through the second on-off valve 62, thereby achieving high-speed preheating of the introduced fresh air.

[0068] See Fig. 9 As stated above, Figure 8 When the states shown are different, the figure shows the state of the integrated air conditioner of the present application running in the cooling mode. At this time, when the refrigerant flows in the fresh air heat exchanger 15, it will form a cooling effect on the introduced fresh air, thereby achieving the purpose of dehumidifying the introduced fresh air. The control strategy for the first on-off valve 61 and the second on-off valve 62 is similar to that in the heating mode, and will not be repeated here.

[0069] According to an embodiment of the present invention, there is also provided a control method for the above-mentioned integrated air conditioner with a fresh air device, comprising the following steps:

[0070] Acquire the operating mode of the air conditioner;

[0071] When the operation mode is the fresh air introduction mode, the fresh air duct housing 11 is controlled to rotate in a first rotation direction by a preset angle so that the fresh air inlet 101 is opened; or

[0072] When the operating mode is to end the fresh air introduction mode, the fresh air duct housing 11 is controlled to rotate a preset angle in a direction opposite to the first rotation direction to close the fresh air inlet 101 to prevent low-quality air from the outdoor side from entering the indoor side through the fresh air device 1.

[0073] In some embodiments, when the air conditioner includes a fresh air heat exchanger 15:

[0074] When high-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and the first on-off valve 61 is controlled to be cut off and the second on-off valve 62 is controlled to be turned on; or,

[0075] When low-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and the first on-off valve 61 and the second on-off valve 62 are controlled to be turned on; or

[0076] When high-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in the heating mode, and the first on-off valve 61 is controlled to be cut off and the second on-off valve 62 is controlled to be turned on; or

[0077] When low-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in the heating mode, and the first on-off valve 61 and the second on-off valve 62 are controlled to be turned on;

[0078] When there is no need to dehumidify or preheat the introduced fresh air, the first on-off valve 61 is controlled to be on and the second on-off valve 62 is controlled to be off.

[0079] It is easy for those skilled in the art to understand that, without conflict, the advantageous technical features of the above-mentioned methods can be freely combined and superimposed.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present invention. These improvements and variations should also be regarded as the protection scope of the present invention.

Claims

1. An integrated air conditioner with a fresh air device, characterized in that: The invention comprises a fresh air device (1), wherein the fresh air device (1) comprises a fresh air duct housing (11) and a fresh air fan (12) located in the air duct of the fresh air duct housing (11), wherein the fresh air duct housing (11) is provided with a fresh air inlet (101) and a fresh air outlet (102), and the integrated air conditioner further comprises a middle partition (2) for dividing the space inside the housing into an indoor side and an outdoor side, wherein the middle partition (2) has a (101) corresponds to the flow port (21) connectedly arranged, the fresh air duct housing (11) can be driven to rotate so as to switch between a flow-through position and a cut-off position; when the fresh air duct housing (11) is in the flow-through position, the fresh air inlet (101) is connected to the flow port (21); when the fresh air duct housing (11) is in the cut-off position, the flow port (21) is blocked by the fresh air duct housing (11).

2. The integrated air conditioner according to claim 1, characterized in that: The fresh air duct housing (11) comprises a relatively assembled fresh air volute (111) and a fresh air volute tongue (112), wherein when the fresh air duct housing (11) is in the cut-off position, the fresh air volute (111) blocks the flow port (21); and / or the fresh air device (1) is located inside the room.

3. The integrated air conditioner according to claim 2, characterized in that: The indoor side is provided with an indoor air supply duct (31), a receiving space is formed between the lower part of the indoor air supply duct (31) and the middle partition plate (2), and the fresh air device (1) is located in the receiving space.

4. The integrated air conditioner according to claim 3, characterized in that: A fresh air supply port is formed on the air duct wall of the indoor air supply duct (31), and the fresh air outlet (102) is connected to the fresh air supply port.

5. The integrated air conditioner according to claim 2, characterized in that: A wind guide frame (211) is formed on one side of the flow port (21) located on the indoor side, and the wind guide frame (211) can be matched and fitted with the outer side surface of the fresh air volute (111).

6. The integrated air conditioner according to claim 2, characterized in that: The middle partition (2) has a bent section (22) that can form a blockage for one end of the fresh air duct housing (11) and extends toward the indoor side. The fresh air device (1) also includes a first drive motor (13) for driving the fresh air volute (111) to rotate and move. The fresh air fan (12) includes a second drive motor (14) that is driven and connected to the first end of the fan blade (121). The first drive motor (13) and the second drive motor (14) are both assembled on the wall surface of the bent section (22) away from the inner side of the fresh air duct housing (11).

7. The integrated air conditioner according to claim 6, characterized in that: The output shaft of the first drive motor (13) is provided with a driving gear (131); the end of the fresh air volute (111) corresponding to the position of the first drive motor (13) is formed with a driven gear ring (1111); the driving gear (131) is meshed with the driven gear ring (1111); and / or the fan blade (121) is a cross-flow fan blade; and / or the second end of the fan blade (121) is supported on a chassis (4) of the air conditioner via a supporting rotating frame (6).

8. The integrated air conditioner according to claim 1, characterized in that: The invention also comprises an indoor heat exchanger (32), an outdoor heat exchanger (51), and a throttling element (52) connected in series between the indoor heat exchanger (32) and the outdoor heat exchanger (51); the throttling element (52) and the indoor heat exchanger (32) are connected via a first pipeline, and a first on-off valve (61) is provided on the first pipeline; a fresh air heat exchanger (15) is provided on the side of the flow port (21) located on the indoor side; the indoor heat exchanger (32) and the outdoor heat exchanger (51) are also connected via a second pipeline, the second pipeline is connected in parallel with the first pipeline, and the fresh air heat exchanger (15) and the second on-off valve (62) are connected in series to the second pipeline; And / or, the integrated air conditioner is one of a through-the-wall air conditioner, a window air conditioner or a mobile air conditioner.

9. A control method for controlling an integrated air conditioner with a fresh air device according to any one of claims 1 to 8, characterized in that: The steps include: Acquire the operating mode of the air conditioner; When the operation mode is a fresh air introduction mode, the fresh air duct housing (11) is controlled to rotate along a first rotation direction by a preset angle so that the fresh air inlet (101) is opened; or, When the operation mode is to end the fresh air introduction mode, the fresh air duct housing (11) is controlled to rotate by a preset angle in a direction opposite to the first rotation direction so that the fresh air inlet (101) is closed.

10. The control method according to claim 9, characterized in that: When the air conditioner includes a fresh air heat exchanger (15): When high-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and the first on-off valve (61) is controlled to be cut off and the second on-off valve (62) is controlled to be turned on; or, When low-speed dehumidification is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a cooling mode, and the first on-off valve (61) and the second on-off valve (62) are controlled to be turned on; or, When high-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a heating mode, and the first on-off valve (61) is controlled to be cut off and the second on-off valve (62) is controlled to be turned on; or, When low-speed fresh air preheating is obtained during the operation of the fresh air introduction mode, the air conditioner is controlled to operate in a heating mode, and the first on-off valve (61) and the second on-off valve (62) are controlled to be turned on.

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