Duct type air conditioner

Abstract

The utility model discloses an air duct type air conditioner which comprises a machine shell. A heat exchanger; an air duct member; the cross-flow fan is arranged in the machine shell and at least part of the cross-flow fan is located in the air duct piece; a motor; the plurality of cross-flow fans comprise a first fan and a second fan; the motor is arranged between the first fan and the second fan and is in transmission connection with the first fan and the second fan; the motor comprises an inner stator which is fixed relative to the air duct piece; the outer rotor is rotatably arranged on the periphery of the inner stator in a sleeving mode, and the outer rotor is connected with the first fan; one end of the transmission shaft is fixed relative to the outer rotor and / or the first fan, the transmission shaft penetrates through the inner stator and the outer rotor, and the other end of the transmission shaft is in transmission connection with the second fan. According to the duct type air conditioner, the motor can be used for driving the cross-flow fans to operate at the same time so as to avoid the situation that the length-diameter ratio of a single cross-flow fan is too large, the transmission structure of the motor and the cross-flow fans can be simple, the axial occupied space of the motor can be small, and layout is convenient.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a ducted air conditioner. Background Technology

[0002] The ducted air conditioner in the related technology includes a heat exchanger, ductwork, cross-flow fan and motor. The cross-flow fan and motor are located inside the ductwork, and the motor is used to drive the cross-flow fan to operate so that air enters the casing from the air inlet and flows into the room from the air outlet after exchanging heat with the heat exchanger.

[0003] Furthermore, the cross-flow fan includes a first fan and a second fan, which are spaced apart along the length of the duct machine. A motor is located between the first fan and the second fan and is connected to the first fan and the second fan in a transmission connection, so that the motor can drive the first fan and the second fan to rotate simultaneously.

[0004] However, due to unreasonable structural design in related technologies, the transmission connection structure between the motor and the cross-flow fan is complex, and the axial space occupied by the motor in the housing is large, making it inconvenient for layout. Utility Model Content

[0005] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one objective of this utility model is to provide a duct air conditioner that can simultaneously drive multiple cross-flow fans using a motor. Furthermore, the use of multiple cross-flow fans avoids an excessively large length-to-diameter ratio for a single cross-flow fan, resulting in higher strength for each fan. Moreover, the transmission structure between the motor and the cross-flow fans can be simpler, and the axial space occupied by the motor can be smaller compared to an internal rotor motor, facilitating layout.

[0006] To achieve the above objectives, this utility model provides a ducted air conditioner, comprising: a housing with an air inlet and an air outlet; a heat exchanger disposed within the housing; an air duct assembly disposed within the housing; a cross-flow fan disposed within the housing and at least partially within the air duct assembly, the cross-flow fan driving air to enter the housing from the air inlet, and the air flowing into the room from the air outlet after exchanging heat with the heat exchanger; and a motor disposed within the housing and fixed to the air duct assembly, the motor being connected to the cross-flow fan via a transmission connection; the cross-flow fan being a plurality of fans, including: a first fan; a second fan; and so on. A first fan and a second fan are arranged along the length of the duct unit. A motor is located between the first fan and the second fan and is drive-connected to both fans to drive them to rotate. The motor includes: an inner stator fixed relative to the duct component; an outer rotor rotatably fitted around the outer periphery of the inner stator and connected to the first fan; and a drive shaft, one end of which is fixed relative to the outer rotor and / or the first fan, and passes through the inner stator and the outer rotor, while the other end is drive-connected to the second fan.

[0007] The above technical solution has the following advantages or beneficial effects: by setting multiple cross-flow fans, not only can multiple cross-flow fans be driven by the motor at the same time, but setting multiple cross-flow fans can also reduce the length of a single cross-flow fan, thereby avoiding an excessively large length-to-diameter ratio of a single cross-flow fan. The single cross-flow fan is stronger, less prone to deformation during operation, and runs more stably. Moreover, the transmission structure between the motor and the cross-flow fan can be simpler, and the axial space occupied by the motor can be smaller than that of an internal rotor motor, which facilitates layout.

[0008] According to some embodiments of the present invention, the inner stator is provided with a clearance hole, the clearance hole penetrates the inner stator along the axial direction of the inner stator, and a first bearing is provided in the clearance hole, and the transmission shaft is rotatably disposed in the first bearing.

[0009] The above technical solution has the following advantages or beneficial effects: the drive shaft will not directly contact and rub against the inner stator. When the outer rotor rotates relative to the inner stator, the drive shaft can also rotate relative to the inner stator, thereby driving the second fan to rotate through the drive shaft. The structural design is more reasonable.

[0010] According to some embodiments of the present invention, the duct machine further includes: a motor bracket, the motor bracket being connected to the duct component, the inner stator being inserted through the motor bracket and fixed relative to the motor bracket, one end of the inner stator being exposed from the motor bracket, and the outer rotor being sleeved on the one end of the inner stator and connected to the first fan.

[0011] The above technical solution has the following advantages or beneficial effects: by setting a motor bracket, it is not necessary to set a structure for fixing the motor inside the air duct component, which helps to simplify the structure of the air duct component, and the motor can be stably connected and fixed to the air duct component through the motor bracket, making the structural setting more reasonable.

[0012] According to some embodiments of the present invention, the outer peripheral surface of the motor bracket is provided with a plurality of connecting ears, and the side of the air duct component facing the heat exchanger is provided with a plurality of connecting posts. The connecting ears stop at the ends of the connecting posts, and the connecting ears and the connecting posts are connected by fasteners; wherein, the plurality of connecting posts are respectively provided on the upper and lower sides of the air duct component.

[0013] The above technical solution has the following advantages or beneficial effects: by setting a connecting column on the air duct component, the connecting column can extend outside the air duct component. This not only allows the motor bracket to be pre-positioned using the connecting column, but also eliminates the need for the motor bracket to be fully inserted into the air duct component for connection. This simplifies the disassembly and assembly of the motor bracket and the air duct component, and facilitates assembly.

[0014] According to some embodiments of the present invention, the duct machine further includes: an elastic buffer member, the elastic buffer member being sleeved on the outer peripheral surface of the inner stator and located within the motor bracket, and at least a portion of the elastic buffer member stopping on the side of the inner stator opposite to the outer rotor.

[0015] The above technical solution has the following advantages or beneficial effects: the elastic buffer can prevent the inner stator from directly contacting the motor bracket, the elastic buffer can buffer and protect the inner stator, prevent wear between the inner stator and the motor bracket, and when the motor is working, the elastic buffer can also absorb vibration and noise to achieve the purpose of vibration reduction and noise reduction.

[0016] According to some embodiments of the present invention, the outer peripheral surface of the inner stator is provided with a plurality of limiting protrusions, and the inner peripheral surface of the motor bracket is provided with a plurality of limiting ribs, and along the circumferential direction of the inner stator, the plurality of limiting ribs respectively stop on the opposite sides of the limiting protrusions.

[0017] The above technical solution has the following advantages or beneficial effects: multiple limiting ribs can stop on both sides of a single limiting rib along the circumference of the motor bracket, so as to limit and fix the motor bracket and the inner stator in the circumference of the motor bracket, avoid the inner stator from rotating relative to the motor bracket, and improve the connection stability of the motor and the motor bracket.

[0018] According to some embodiments of the present invention, the duct unit further includes: a second bearing, the second bearing being fixed to one end of the duct component, the first fan having a first rotating shaft at the end away from the motor, the first rotating shaft being rotatably mounted on the second bearing; and a third bearing, the third bearing being fixed to the other end of the duct component, the second fan having a second rotating shaft at the end away from the motor, the second rotating shaft being rotatably mounted on the third bearing.

[0019] The above technical solution has the following advantages or beneficial effects: the air duct component can support the first rotating shaft through the second bearing, and when the motor is working, it can drive the first fan to rotate relative to the air duct component. At the same time, the air duct component can also support the second rotating shaft through the third bearing, and when the motor is working, it can drive the second fan to rotate relative to the air duct component.

[0020] According to some embodiments of the present invention, the heat exchanger has a heat exchanger end plate, and the side of the heat exchanger end plate facing the air duct component has a first mounting groove; and the other end of the air duct component has a second mounting groove, the inner wall of the second mounting groove and the inner wall of the first mounting groove clamping and fixing the third bearing.

[0021] The above technical solution has the following advantages or beneficial effects: the first and second mounting slots can be used to accommodate the third bearing, and the heat exchanger end plate and air duct components can be used to clamp and fix the third bearing, making disassembly and assembly more convenient.

[0022] According to some embodiments of the present invention, the air duct component includes: a first air duct component, wherein the first fan, the second fan, and the motor are all fixed to the first air duct component; and a second air duct component, wherein the second air duct component is disposed on the side of the first air duct component facing the air inlet, and the first air duct component and the second air duct component together define an air outlet duct, the air outlet duct is connected to the air outlet, and at least a portion of the cross-flow fan is disposed within the air outlet duct.

[0023] The above technical solution has the following advantages or beneficial effects: the first air duct component can be used to provide installation positions for the first fan, the second fan and the motor, which is convenient for layout and assembly. The air duct component can be divided into two parts, the first air duct component and the second air duct component. After the first air duct component and the second air duct component are processed and shaped separately and then assembled together, it is beneficial to simplify the structure of the air duct component and facilitate processing.

[0024] According to some embodiments of this utility model, the dimension of the housing along the left-right direction of the duct machine is L, and the outer diameter of the cross-flow fan is D; wherein, L and D satisfy 12≤L / D.

[0025] The above technical solution has the following advantages or beneficial effects: At this time, the extension dimension of the casing along the left and right direction of the duct machine is large, and the length of the casing is long. By setting multiple cross-flow fans in the large casing, the length of a single cross-flow fan can be avoided more effectively, and the length-to-diameter ratio of a single cross-flow fan can be avoided to be too large. This makes the structural strength of the cross-flow fan higher, and the cross-flow fan is less likely to deform during operation, making the operation more stable and reliable.

[0026] According to an embodiment of this utility model, a ducted air conditioner is provided, comprising: a housing, the housing having an air inlet and an air outlet; a heat exchanger, the heat exchanger being disposed within the housing; an air duct component, the air duct component being disposed within the housing; a cross-flow fan, the cross-flow fan being disposed within the housing and at least partially located within the air duct component, the cross-flow fan driving air to enter the housing from the air inlet, and the air flowing into the room from the air outlet after exchanging heat with the heat exchanger; a motor, the motor being disposed within the housing and fixed to the air duct component, the motor being drively connected to the cross-flow fan; and multiple cross-flow fans, the multiple fans being... The cross-flow fans are arranged along the length of the duct unit; and there is at least one motor, which is located between two adjacent cross-flow fans to drive the rotation of multiple cross-flow fans; wherein the motor includes: an inner stator, which is fixed relative to the duct component; an outer rotor, which is rotatably sleeved on the outer periphery of the inner stator and connected to one of the cross-flow fans; and a drive shaft, one end of which is fixed relative to one of the cross-flow fans and passes through the inner stator and the outer rotor, and the other end of which is connected to another cross-flow fan.

[0027] The above technical solution has the following advantages or beneficial effects: by setting multiple cross-flow fans, not only can multiple cross-flow fans be driven simultaneously by at least one motor, but setting multiple cross-flow fans can also reduce the length of a single cross-flow fan, thereby avoiding an excessively large length-to-diameter ratio of a single cross-flow fan. The single cross-flow fan is stronger, less prone to deformation during operation, and runs more stably. Moreover, the transmission structure between the motor and the cross-flow fan can be simpler, and the axial space occupied by the motor can be smaller than that of an internal rotor motor, which facilitates layout.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0030] Figure 1 This is a structural schematic diagram of the duct machine according to an embodiment of the present utility model;

[0031] Figure 2 This is a structural schematic diagram of the ductwork machine according to another perspective of an embodiment of the present utility model;

[0032] Figure 3 This is an exploded view of the ductwork machine according to an embodiment of the present utility model;

[0033] Figure 4 This is a cross-sectional view of the ductwork machine according to an embodiment of the present utility model;

[0034] Figure 5 yes Figure 4 An enlarged view of point A;

[0035] Figure 6 This is a schematic diagram of the structure of the duct air conditioner with the casing removed according to an embodiment of the present utility model;

[0036] Figure 7 This is a structural schematic diagram of the duct air conditioner with the casing and heat exchanger removed according to an embodiment of the present utility model;

[0037] Figure 8 This is an exploded view of the first air duct component, the second air duct component, and the cross-flow fan according to an embodiment of the present utility model;

[0038] Figure 9 This is an assembly diagram of the motor bracket and the motor according to an embodiment of the present utility model;

[0039] Figure 10 This is an exploded view of the motor bracket and the motor according to an embodiment of the present utility model;

[0040] Figure 11 This is a structural schematic diagram of the motor bracket according to an embodiment of the present utility model.

[0041] Figure label:

[0042] 1. Ductless air conditioner; 10. Heat exchanger;

[0043] 100. Housing; 110. Air inlet; 120. Air outlet;

[0044] 200, Air duct component; 210, Connecting column; 220, Second mounting slot; 230, First air duct component; 240, Second air duct component; 250, Air outlet duct;

[0045] 300. Crossflow fan; 310. First fan; 311. First shaft; 320. Second fan; 321. Second shaft;

[0046] 400. Motor; 410. Inner stator; 411. Clearance hole; 412. First bearing; 413. Limiting boss; 420. Outer rotor; 430. Drive shaft;

[0047] 500. Motor bracket; 510. Connecting lug; 520. Limiting rib;

[0048] 600. Elastic buffer; 610. Limiting groove;

[0049] 700, Second Bearing;

[0050] 800, Third Bearing;

[0051] 900, Heat exchanger end plate; 910, First mounting slot. Detailed Implementation

[0052] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0053] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0054] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0055] In the description of this utility model, "multiple" means two or more, and "several" means one or more.

[0056] The following description, with reference to the accompanying drawings, describes a ductwork unit 1 according to an embodiment of the present invention.

[0057] like Figures 1-11As shown in the attached figure, the left and right directions are the left and right directions of the air duct machine 1, which is also the length direction of the casing 100; the front and back directions are the front and back directions of the air duct machine 1; and the up and down directions are the up and down directions of the air duct machine 1.

[0058] According to an embodiment of the present utility model, the duct air conditioner 1 may include a housing 100, which is provided with an air inlet 110 and an air outlet 120. Air can flow into the housing 100 through the air inlet 110 and flow out of the housing 100 through the air outlet 120.

[0059] The ducted air conditioner 1 may include a heat exchanger 10, which is located inside the casing 100. In this way, the air flowing into the ducted air conditioner 1 can exchange heat with the refrigerant in the heat exchanger 10, causing the air temperature to rise or fall. Subsequently, the air can flow into the room from the air outlet 120 to achieve heating or cooling of the room.

[0060] The ducted air conditioner 1 may include an air duct component 200, which is disposed inside the housing 100. In this way, the air duct component 200 can guide the airflow, making the airflow into the housing 100 more orderly. Specifically, indoor air can flow into the housing 100 from the air inlet 110, and after heat exchange with the heat exchanger 10, it flows to the air duct component 200, and then flows to the air outlet 120 under the guidance of the air duct component 200 and flows into the room through the air outlet 120.

[0061] For example, the heat exchanger 10 may be located near the air inlet 110, and the air duct 200 may be located on the side of the heat exchanger 10 facing the air outlet 120; or, the heat exchanger 10 may be located near the air outlet 120, and the air duct 200 may be located on the side of the heat exchanger 10 facing the air inlet 110.

[0062] The ducted air conditioner 1 may include a cross-flow fan 300, which is disposed within the housing 100 and at least partially within the ductwork 200. The cross-flow fan 300 drives air to enter the housing 100 from the air inlet 110, and after exchanging heat with the heat exchanger 10, the air flows into the room from the air outlet 120. That is, the cross-flow fan 300 can accelerate the airflow rate, which is beneficial to improving the heat exchange efficiency between the air and the heat exchanger 10.

[0063] The duct air conditioner 1 may include a motor 400, which is located inside the housing 100 and fixed to the air duct component 200. The motor 400 is connected to the cross-flow fan 300 for transmission. The motor 400 can drive the cross-flow fan 300 to rotate, so that the cross-flow fan 300 can operate and drive the air to flow.

[0064] Specifically, there are multiple cross-flow fans 300, which may include a first fan 310 and a second fan 320. The first fan 310 and the second fan 320 are arranged along the length of the duct unit 1. For example, the first fan 310 may be located near the right side of the duct unit 1, and the second fan 320 may be located near the left side of the duct unit 1. Furthermore, the motor 400 is located between the first fan 310 and the second fan 320 and is drivenly connected to the first fan 310 and the second fan 320. That is, the motor 400 may be located in the middle of the duct component 200. This arrangement can reduce the axial length of a single cross-flow fan 300, so that the length-to-diameter ratio of a single cross-flow fan 300 can be smaller. The cross-flow fan 300 is less prone to structural deformation during operation, thereby ensuring the stable operation of the cross-flow fan 300.

[0065] The motor 400 may include an inner stator 410, which is fixed relative to the duct component 200. The motor 400 may also include an outer rotor 420, which is rotatably fitted around the outer periphery of the inner stator 410 and connected to the first fan 310. Thus, when the motor 400 operates, the outer rotor 420 can rotate relative to the inner stator 410, and the first fan 310 can rotate with the outer rotor 420. Furthermore, the axial space occupied by the outer rotor motor can be smaller, which helps to reduce the axial space occupied by the motor 400 within the housing 100, allowing for a more compact structure and smaller size for the duct unit 1, facilitating installation.

[0066] Furthermore, the motor 400 may include a drive shaft 430, one end of which is fixed relative to the outer rotor 420 and / or the first fan 310, and the drive shaft 430 passes through the inner stator 410 and the outer rotor 420, and the other end of the drive shaft 430 is connected to the second fan 320 for transmission.

[0067] Wherein, the fact that one end of the drive shaft 430 is fixed relative to the outer rotor 420 and / or the first fan 310 means that one end of the drive shaft 430 can be connected to the outer rotor 420, or one end of the drive shaft 430 can be connected to the first fan 310, or one end of the drive shaft 430 can be connected to the outer rotor 420 and the first fan 310 respectively.

[0068] In this way, when the outer rotor 420 rotates relative to the inner stator 410, the transmission shaft 430 can rotate together with the outer rotor 420 and the first fan 310. Furthermore, the outer rotor 420 or the first fan 310 can drive the second fan 320 to rotate through the transmission shaft 430, so that a single motor 400 can simultaneously drive the two cross-flow fans 300 on both sides. Moreover, the transmission connection structure between the motor 400 and the first fan 310 and the second fan 320 is simpler and easier to arrange.

[0069] Thus, the duct air conditioner 1 according to the present utility model embodiment can not only use the motor 400 to drive multiple cross-flow fans 300 to operate simultaneously, but also setting multiple cross-flow fans 300 can avoid the excessive length-to-diameter ratio of a single cross-flow fan 300, and the structural strength of a single cross-flow fan 300 is higher. Moreover, the transmission structure between the motor 400 and the cross-flow fans 300 can be simpler, and the axial space occupied by the motor 400 can also be smaller, which is convenient for layout.

[0070] In some specific embodiments of this utility model, such as Figure 5 and Figure 9 As shown, the inner stator 410 is provided with a clearance hole 411, which passes through the inner stator 410 along the axial direction of the inner stator 410, and a first bearing 412 is provided in the clearance hole 411, and the transmission shaft 430 is rotatably passed through the first bearing 412.

[0071] In other words, the first bearing 412 can be sleeved on the outside of the transmission shaft 430 and the first bearing 412 is located inside the clearance hole 411. In this way, the transmission shaft 430 will not directly contact and rub against the inner stator 410. When the outer rotor 420 rotates relative to the inner stator 410, the transmission shaft 430 can also rotate relative to the inner stator 410. In this way, the second fan 320 can be driven to rotate through the transmission shaft 430, making the structural design more reasonable.

[0072] In some specific embodiments of this utility model, such as Figures 3-5 , Figures 6-11 As shown, the duct unit 1 may also include a motor bracket 500.

[0073] The motor bracket 500 is connected to the air duct component 200. The inner stator 410 passes through the motor bracket 500 and is fixed relative to the motor bracket 500. One end of the inner stator 410 protrudes from the motor bracket 500. The outer rotor 420 is sleeved on one end of the inner stator 410 and connected to the first fan 310.

[0074] The motor bracket 500 can extend circumferentially along the inner stator 410 to fix the inner stator 410 around the inner stator 410 circumferentially.

[0075] Specifically, the inner stator 410 can extend into the motor bracket 500 from the side of the motor bracket 500 away from the first fan 310, and then extend out from the side of the motor bracket 500 facing the first fan 310. The outer rotor 420 can be sleeved on the end of the inner stator 410 facing the first fan 310, and the side of the outer rotor 420 facing the first fan 310 is connected to the first fan 310 in a transmission connection, for example, by a toothed meshing transmission connection.

[0076] Furthermore, by setting up the motor bracket 500, it is not necessary to set up a structure for fixing the motor 400 inside the air duct component 200, which helps to simplify the structure of the air duct component 200. Moreover, the motor 400 can be stably connected and fixed to the air duct component 200 through the motor bracket 500, making the structural setting more reasonable.

[0077] In some specific embodiments of this utility model, such as Figures 7-11 As shown, the outer peripheral surface of the motor bracket 500 is provided with multiple connecting ears 510, and the side of the air duct component 200 facing the heat exchanger 10 is provided with multiple connecting posts 210. The connecting ears 510 stop at the ends of the connecting posts 210, and the connecting ears 510 and the connecting posts 210 are connected by fasteners. For example, the fasteners can be bolts.

[0078] Specifically, multiple connecting ears 510 can be connected to multiple connecting posts 210 one by one via fasteners. By setting connecting posts 210 on the air duct component 200, the connecting posts 210 can extend outside the air duct component 200. This not only allows the motor bracket 500 to be pre-positioned using the connecting posts 210, but also eliminates the need for the motor bracket 500 to be fully inserted into the air duct component 200 for connection. This simplifies the disassembly and assembly of the motor bracket 500 and the air duct component 200, making assembly easier.

[0079] Multiple connecting posts 210 are respectively located on the upper and lower sides of the air duct component 200. In this way, the motor bracket 500 can be connected and fixed to the upper and lower sides of the air duct component 200 respectively. Both the upper and lower sides of the air duct component 200 can bear the weight of the motor bracket 500 and the motor 400, and the force bearing is more even. This allows the motor bracket 500 to be fixed to the air duct component 200 more stably. That is, the motor 400 can be stably and reliably connected and fixed to the air duct component 200 through the motor bracket 500.

[0080] In some specific embodiments of this utility model, such as Figure 5 and Figure 10 As shown, the duct unit 1 may also include an elastic buffer 600. The elastic buffer 600 may be a rubber component.

[0081] The elastic buffer 600 is sleeved on the outer peripheral surface of the inner stator 410 and located inside the motor bracket 500. At least a portion of the elastic buffer 600 stops on the side of the inner stator 410 facing away from the outer rotor 420.

[0082] By adding an elastic buffer 600, the gap between the inner stator 410 and the motor bracket 500 can be filled. The elastic buffer 600 can prevent the inner stator 410 from directly contacting the motor bracket 500. The elastic buffer 600 can buffer and protect the inner stator 410, preventing wear between the inner stator 410 and the motor bracket 500. Furthermore, when the motor 400 is working, the elastic buffer 600 can also absorb vibration and noise to achieve the purpose of vibration reduction and noise reduction.

[0083] In some specific embodiments of this utility model, such as Figure 10 As shown, the outer peripheral surface of the inner stator 410 is provided with multiple limiting protrusions 413, and the inner peripheral surface of the motor bracket 500 is provided with multiple limiting ribs 520. Along the circumferential direction of the inner stator 410, the multiple limiting ribs 520 respectively stop on the opposite sides of the limiting protrusions 413.

[0084] Specifically, the limiting boss 413 can protrude outward from the outer circumferential surface of the inner stator 410 along the radial direction, and multiple limiting bosses 413 can be distributed at intervals along the circumference of the inner stator 410.

[0085] Furthermore, the inner circumferential surface of the motor bracket 500 is provided with multiple limiting ribs 520. The multiple limiting ribs 520 can be arranged at intervals along the circumference of the motor bracket 500, and the limiting ribs 520 can extend along the axial direction of the inner stator 410. Moreover, each pair of adjacent limiting ribs 520 can form a group, and the two limiting ribs 520 in each group can stop on both sides of the single limiting rib 520 along the circumference of the motor bracket 500, so as to limit and fix the motor bracket 500 and the inner stator 410 in the circumferential direction of the motor bracket 500, prevent the inner stator 410 from rotating relative to the motor bracket 500, and improve the connection stability of the motor 400 and the motor bracket 500.

[0086] Multiple limiting grooves 610 can be provided on the inner circumferential surface of the elastic buffer 600. The limiting grooves 610 can be recessed along the radial direction of the inner stator 410 to the side away from the inner stator 410. The multiple limiting grooves 610 can be distributed at intervals along the circumferential direction of the elastic buffer 600. Multiple limiting bosses 413 can be inserted into the multiple limiting grooves 610 one by one.

[0087] In some specific embodiments of this utility model, such as Figure 4 and Figure 8 As shown, the duct unit 1 may also include a second bearing 700.

[0088] The second bearing 700 is fixed to one end of the air duct component 200, and the end of the first fan 310 away from the motor 400 has a first rotating shaft 311, which is rotatably mounted on the second bearing 700.

[0089] Specifically, the second bearing 700 can be fixed to the right end of the air duct component 200, and the first rotating shaft 311 can be rotatably extended into the second bearing 700. The air duct component 200 can support the first rotating shaft 311 through the second bearing 700. When the motor 400 is working, it can drive the first fan 310 to rotate relative to the air duct component 200.

[0090] Additionally, the duct unit 1 may include a third bearing 800, which is fixed to the other end of the duct component 200. The end of the second fan 320 away from the motor 400 has a second shaft 321, which is rotatably mounted on the third bearing 800.

[0091] Specifically, the third bearing 800 can be fixed to the left end of the air duct component 200, and the second rotating shaft 321 can be rotatably extended into the third bearing 800. The air duct component 200 can support the second rotating shaft 321 through the third bearing 800. When the motor 400 is working, it can drive the second fan 320 to rotate relative to the air duct component 200.

[0092] In some specific embodiments of this utility model, such as 3, Figure 6 and Figure 7 As shown, heat exchanger 10 has heat exchanger end plate 900.

[0093] The heat exchanger end plate 900 has a first mounting groove 910 on the side facing the air duct component 200, and the other end of the air duct component 200 has a second mounting groove 220. The inner wall of the second mounting groove 220 and the inner wall of the first mounting groove 910 clamp and fix the third bearing 800.

[0094] The heat exchanger end plate 900 can be located on the left side of the duct unit 1, and the heat exchanger end plate 900 can be connected to the duct component 200 by bolts.

[0095] Specifically, the first mounting groove 910 can be recessed backward along the front-back direction of the duct unit 1, and the second mounting groove 220 can be recessed forward along the front-back direction of the duct unit 1. The first mounting groove 910 and the second mounting groove 220 together define a mounting groove, so that the mounting groove can be used to accommodate the third bearing 800. At the same time, the heat exchanger end plate 900 and the duct component 200 can be used to clamp and fix the third bearing 800, making disassembly and assembly more convenient.

[0096] With this setup, when assembling the duct unit 1, the duct unit 1 can be inverted vertically, and the top plate of the housing 100 can be pre-installed. The duct component 200 can be installed into the preset fixed position first. At the same time, the motor bracket 500, the motor 400, and the first fan 310 can be pre-installed together. The first fan 310 can be connected to the second bearing 700 on the right side of the duct component 200, and the second fan 320 can be tilted first. Then, the drive shaft 430 can be connected to the second fan 320. Next, the third bearing 800 can be sleeved on the second rotating shaft 321. Then, the third bearing 800 can be snapped into the second mounting groove 220 on the duct component 200. Then, the heat exchanger end plate 900 can be connected to the duct component 200, so that the third bearing 800 can be clamped and fixed by the heat exchanger end plate 900 and the duct component 200. Finally, the motor bracket 500 can be connected to the duct component 200.

[0097] In some specific embodiments of this utility model, such as Figure 8 As shown, the air duct component 200 may include a first air duct component 230.

[0098] The first fan 310, the second fan 320, and the motor 400 are all fixed to the first air duct component 230. This allows the first air duct component 230 to provide installation positions for the first fan 310, the second fan 320, and the motor 400, so that the first fan 310, the second fan 320, and the motor 400 can be fixed to the housing 100, which facilitates layout and assembly.

[0099] In addition, such as Figure 8 As shown, the air duct component 200 may further include a second air duct component 240, which is disposed on the side of the first air duct component 230 facing the air inlet 110. The first air duct component 230 and the second air duct component 240 together define an air outlet duct 250, which is connected to the air outlet 120. At least a portion of the cross-flow fan 300 is disposed within the air outlet duct 250.

[0100] In other words, the air duct component 200 can be divided into two parts: a first air duct component 230 and a second air duct component 240. After the first air duct component 230 and the second air duct component 240 are processed and shaped separately, they are then assembled together, which helps to simplify the structure of the air duct component 200 and facilitates processing.

[0101] In some specific embodiments of this utility model, the dimension of the housing 100 along the left-right direction of the duct fan 1 is L, and the outer diameter of the cross-flow fan 300 is D. Wherein, L and D satisfy 12 ≤ L / D. For example, the value of L / D can be 12, 13, 14, 15, 16, 17, 18, or 19.

[0102] It is understandable that when the value of D is constant, the smaller the value of L / D, the smaller L is. When L / D is not less than 12, that is, the dimension L of the housing 100 along the left and right direction of the duct air conditioner 1 is large, if only one cross-flow fan 300 is installed inside the housing 100, the extension dimension of the cross-flow fan 300 along the left and right direction of the duct air conditioner 1 will be long, the length-to-diameter ratio of the cross-flow fan 300 will be large, and the cross-flow fan 300 will be prone to deformation. Therefore, in this embodiment, when the dimension of the housing 100 is long, it is necessary to install multiple cross-flow fans 300 inside the housing 100 to avoid the length of a single cross-flow fan 300 being too long.

[0103] Preferably, 14 ≤ L / D, and the casing 100 extends a relatively long length along the left and right directions of the duct unit 1. In this case, setting multiple cross-flow fans 300 can avoid the length of a single cross-flow fan 300 being too long, thereby more effectively avoiding the excessive length-to-diameter ratio of a single cross-flow fan 300. The structural strength of a single cross-flow fan 300 can be higher, thus preventing the cross-flow fan 300 from deforming during operation, making the operation of the cross-flow fan 300 more stable and reliable.

[0104] The following description of the duct air conditioner 1 according to the present invention is with reference to the accompanying drawings.

[0105] In the attached diagram, the left and right directions refer to the left and right directions of the duct unit 1, which is also the length direction of the casing 100; the front and back directions refer to the front and back directions of the duct unit 1; and the up and down directions refer to the up and down directions of the duct unit 1.

[0106] According to an embodiment of the present utility model, the duct air conditioner 1 may include a housing 100, which is provided with an air inlet 110 and an air outlet 120. Air can flow into the housing 100 through the air inlet 110 and flow out of the housing 100 through the air outlet 120.

[0107] The ducted air conditioner 1 may include a heat exchanger 10, which is located inside the casing 100. In this way, the air flowing into the ducted air conditioner 1 can exchange heat with the refrigerant in the heat exchanger 10, causing the air temperature to rise or fall. Subsequently, the air can flow into the room from the air outlet 120 to achieve heating or cooling of the room.

[0108] The ducted air conditioner 1 may include an air duct component 200, which is disposed inside the housing 100. In this way, the air duct component 200 can guide the airflow, making the airflow into the housing 100 more orderly. Specifically, indoor air can flow into the housing 100 from the air inlet 110, and after heat exchange with the heat exchanger 10, it flows to the air duct component 200, and then flows to the air outlet 120 under the guidance of the air duct component 200 and flows into the room through the air outlet 120.

[0109] For example, the heat exchanger 10 may be located near the air inlet 110, and the air duct 200 may be located on the side of the heat exchanger 10 facing the air outlet 120; or, the heat exchanger 10 may be located near the air outlet 120, and the air duct 200 may be located on the side of the heat exchanger 10 facing the air inlet 110.

[0110] The ducted air conditioner 1 may include a cross-flow fan 300, which is disposed within the housing 100 and at least partially within the ductwork 200. The cross-flow fan 300 drives air to enter the housing 100 from the air inlet 110, and after exchanging heat with the heat exchanger 10, the air flows into the room from the air outlet 120. That is, the cross-flow fan 300 can accelerate the airflow rate, which is beneficial to improving the heat exchange efficiency between the air and the heat exchanger 10.

[0111] The duct air conditioner 1 may include a motor 400, which is located inside the housing 100 and fixed to the air duct component 200. The motor 400 is connected to the cross-flow fan 300 for transmission. The motor 400 can drive the cross-flow fan 300 to rotate, so that the cross-flow fan 300 can operate and drive the air to flow.

[0112] Specifically, there are multiple cross-flow fans 300, which are arranged along the length of the duct unit 1. There is at least one motor 400, located between two adjacent cross-flow fans 300 to drive the multiple cross-flow fans 300 to rotate. In other words, there can be two or more cross-flow fans 300.

[0113] The motor 400 can be configured as one or more. For example, when only one motor 400 is configured, the motor 400 can be located between two adjacent cross-flow fans 300, and the other two adjacent cross-flow fans 300 can be connected by a drive, so that one motor 400 can drive multiple cross-flow fans 300 to rotate simultaneously; or, when multiple motors 400 are configured, one motor 400 can be configured between every two adjacent cross-flow fans 300, so that multiple motors 400 can drive multiple cross-flow fans 300 to rotate simultaneously; or, multiple motors 400 can be configured, and every two adjacent cross-flow fans 300 can be a group, and one motor 400 can be configured between the two cross-flow fans 300 in each group, so that the number of motors 400 can be reduced, and multiple motors 400 can drive multiple cross-flow fans 300 to rotate.

[0114] This design reduces the axial length of a single cross-flow fan 300, allowing for a smaller length-to-diameter ratio. This makes the cross-flow fan 300 less prone to structural deformation during operation, thus ensuring stable operation.

[0115] The motor 400 may include an inner stator 410, which is fixed relative to the duct component 200. The motor 400 may also include an outer rotor 420, which is rotatably fitted around the outer periphery of the inner stator 410 and connected to a cross-flow fan 300. Thus, when the motor 400 is operating, the outer rotor 420 can rotate relative to the inner stator 410, and the cross-flow fan 300 can rotate with the outer rotor 420. Furthermore, the axial space occupied by the outer rotor motor can be smaller, which helps to reduce the axial space occupied by the motor 400 within the housing 100, allowing for a more compact structure and smaller size for the duct unit 1, facilitating installation.

[0116] Furthermore, the motor 400 may include a drive shaft 430, one end of which is fixed relative to a cross-flow fan 300, and the drive shaft 430 passes through the inner stator 410 and the outer rotor 420, and the other end of the drive shaft 430 is connected to another cross-flow fan 300.

[0117] In this way, when the outer rotor 420 rotates relative to the inner stator 410, the transmission shaft 430 can rotate together with the outer rotor 420 and a cross-flow fan 300. Furthermore, the outer rotor 420 can drive another cross-flow fan 300 to rotate through the transmission shaft 430, so that a single motor 400 can simultaneously drive two cross-flow fans 300 on both sides. Moreover, the transmission connection structure between the motor 400 and multiple cross-flow fans 300 is simpler and easier to arrange.

[0118] Thus, the duct air conditioner 1 according to the present utility model embodiment can not only use the motor 400 to drive multiple cross-flow fans 300 to operate simultaneously, which can avoid the excessive length-to-diameter ratio of a single cross-flow fan 300, but also the transmission structure between the motor 400 and the cross-flow fan 300 can be simpler, and the axial space occupied by the motor 400 can also be smaller, which is convenient for layout.

[0119] Other components and operations of the ductwork unit 1 according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0120] The ducted air conditioner 1 of this invention performs a refrigeration cycle by using a compressor, condenser, expansion valve, and evaporator. The refrigeration cycle includes a series of processes involving compression, condensation, expansion, and evaporation, and supplies refrigerant to the conditioned and heat-exchanged air.

[0121] The compressor compresses refrigerant gas under high temperature and pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process.

[0122] The expansion valve expands the high-temperature, high-pressure liquid refrigerant condensed in the condenser into a low-pressure liquid refrigerant. The evaporator evaporates the expanded refrigerant in the expansion valve and returns the low-temperature, low-pressure refrigerant gas to the compressor. The evaporator achieves its cooling effect by utilizing the latent heat of refrigerant evaporation to exchange heat with the material being cooled. Throughout the cycle, the ducted air conditioner 1 regulates the temperature and humidity of the indoor space.

[0123] In the description of this specification, references to terms such as "specific embodiment" and "specific example" refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example that is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0124] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ducted fan machine characterized by, The utility model relates to a kind of air duct machines, including: Casing, the casing is equipped with air inlet and air outlet; Heat exchanger, the heat exchanger is located in the casing; Air duct, the air duct is located in the casing; Cross-flow fan, the cross-flow fan is located in the casing and at least part is located in the air duct, the cross-flow fan drives air from the air inlet into the casing, and the air flows into indoor from the air outlet after heat exchange with the heat exchanger; Motor, the motor is located in the casing and is fixed to the air duct, the motor is drivingly connected with the cross-flow fan; Its characterized in that, The cross-flow fan is multiple and includes: First fan; Second fan, the first fan and the second fan are arranged along the length direction of the air duct machine, the motor is located between the first fan and the second fan and is drivingly connected with the first fan and the second fan to drive the first fan and the second fan rotate; Wherein, the motor includes: Inner stator, the inner stator is fixed relative to the air duct; Outer rotor, the outer rotor is rotatably sleeved on the outer periphery of the inner stator, and the outer rotor is connected with the first fan; Transmission shaft, one end of the transmission shaft is relatively fixed with the outer rotor and / or the first fan, and the transmission shaft is arranged through the inner stator and the outer rotor, and the other end of the transmission shaft is drivingly connected with the second fan.

2. The ducted fan machine of claim 1, wherein, The inner stator is provided with a relief hole, the relief hole penetrates the inner stator along the axial direction of the inner stator, and a first bearing is arranged in the relief hole, and the transmission shaft is rotatably arranged through the first bearing.

3. The ducted fan machine of claim 1, wherein, Also including: Motor support, the motor support is connected to the air duct, the inner stator is arranged through the motor support and is fixed relative to the motor support, one end of the inner stator is exposed from the motor support, and the outer rotor is sleeved on the one end of the inner stator and connected with the first fan.

4. The ducted fan machine according to claim 3, wherein, The outer periphery of the motor support is provided with a plurality of connecting ears, one side of the air duct facing the heat exchanger is provided with a plurality of connecting columns, the connecting ears are stopped at the end of the connecting columns, and the connecting ears are connected with the connecting columns through fasteners; Wherein, a plurality of connecting columns are respectively arranged on the upper and lower sides of the air duct.

5. The ducted fan machine according to claim 3, wherein, Also including: Elastic buffer, the elastic buffer is sleeved on the outer periphery of the inner stator and located in the motor support, and at least a part of the elastic buffer is stopped on the side of the inner stator away from the outer rotor.

6. The ducted fan machine according to claim 3, wherein, The outer periphery of the inner stator is provided with a plurality of limiting bosses, the inner periphery of the motor support is provided with a plurality of limiting stop ribs, and along the circumferential direction of the inner stator, a plurality of limiting stop ribs are respectively stopped on the opposite sides of the limiting bosses.

7. The ducted fan machine of claim 1, wherein, Also including: Second bearing, the second bearing is fixed to one end of the air duct, the end of the first fan away from the motor has a first rotating shaft, and the first rotating shaft is rotatably mounted on the second bearing; Third bearing, the third bearing is fixed to the other end of the air duct, the end of the second fan away from the motor has a second rotating shaft, and the second rotating shaft is rotatably mounted on the third bearing.

8. The ducted fan machine according to claim 7, wherein, The heat exchanger has a heat exchanger end plate, a side of the heat exchanger end plate facing the air duct piece has a first mounting groove; and The other end of the air duct piece has a second mounting groove, inner walls of the second mounting groove and the first mounting groove clamping fix the third bearing.

9. The ducted fan machine of claim 1, wherein, The air duct piece includes: A first air duct piece, the first fan, the second fan and the motor are fixed to the first air duct piece; A second air duct piece, the second air duct piece is arranged on a side of the first air duct piece facing the air inlet, and the first air duct piece and the second air duct piece jointly define an air outlet air duct, the air outlet air duct communicates with the air outlet, and at least part of the cross-flow fan is arranged in the air outlet air duct.

10. The ducted fan machine according to claim 1, wherein, The size of the casing along the left-right direction of the air duct machine is L, and the outer diameter of the cross-flow fan is D; Wherein, L and D satisfy, 12≤L / D.

11. A ducted fan machine characterised in that, Including: A casing, the casing is provided with an air inlet and an air outlet; A heat exchanger, the heat exchanger is arranged in the casing; An air duct piece, the air duct piece is arranged in the casing; A cross-flow fan, the cross-flow fan is arranged in the casing and at least partially located in the air duct piece, the cross-flow fan drives air to enter the casing from the air inlet, and the air flows into the room from the air outlet after heat exchange with the heat exchanger; A motor, the motor is arranged in the casing and fixed to the air duct piece, the motor is in transmission connection with the cross-flow fan; Characterized in that, The cross-flow fan is a plurality of, a plurality of cross-flow fans are arranged along the length direction of the air duct machine; and The motor is at least one, the motor is arranged between adjacent two cross-flow fans to drive a plurality of cross-flow fans to rotate; Wherein, The motor includes: An inner stator, the inner stator is fixed relative to the air duct piece; An outer rotor, the outer rotor is rotatably sleeved on the outer periphery of the inner stator, and the outer rotor is connected with one cross-flow fan; A transmission shaft, one end of the transmission shaft is fixed relative to one cross-flow fan, and the transmission shaft is arranged in the inner stator and the outer rotor, the other end of the transmission shaft is in transmission connection with another cross-flow fan.

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