Fan assembly, duct type air conditioner and air conditioning system

Abstract

The invention provides a fan assembly, a duct type air conditioner and an air conditioning system. The fan assembly comprises at least two fans, all the fans are coaxially arranged, the air outlet directions of the fans are adjustable, and the fans with the same air outlet direction form a fan unit; and the power mechanism can be connected with all the fans in any fan set through a switching structure. According to the fan assembly, the duct type air conditioner and the air conditioning system, the fans in the different air outlet directions are used for achieving air supply of the duct type air conditioner in the different directions, reliable switching is conducted through the switching structure, and therefore the fans needing to work can be reliably controlled to work; the problem that in the prior art, the air outlet direction of the duct type air conditioner can only be adjusted by changing the rotating direction of the draught fan is solved, the duct type air conditioner can obtain reliable air volume in the refrigerating mode or the heating mode, and the heat exchange efficiency of the duct type air conditioner is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of air handling equipment, in particular to a fan assembly, a duct machine and an air conditioning system. Background Art

[0002] With the improvement of living standards, air conditioners have become an indispensable household appliance for improving the quality of life and are widely used. In some related technologies, ducted air conditioners use horizontal lateral air supply. In heating mode, the heating hot air is blown out horizontally. Due to the low density of hot air, the hot air floats up, and the heat demand of people is 1.6 meters or below. The hot air is difficult to reach the human activity area, resulting in poor heating effect. In other related technologies, the downward air supply method is adopted. In cooling mode, the cold air blows directly on the human body, which is less comfortable.

[0003] The prior art generally adopts the method of controlling the fan to reverse to achieve the reverse air outlet of the fan, so that the indoor unit can simultaneously achieve the purpose of horizontal air supply and vertical air supply. However, the air volume is small when the fan is reversed. If the duct unit is cooling when the fan rotates forward, the fan needs to be reversed when the duct unit is heating, resulting in poor heating capacity of the duct unit. Similarly, if the duct unit is heating when the fan rotates forward, the fan needs to be reversed when the duct unit is cooling, resulting in poor cooling capacity of the duct unit. Both solutions will seriously affect the heat exchange efficiency of the duct unit. Summary of the invention

[0004] In order to solve the technical problem in the prior art that fan reversal cannot ensure the heat exchange efficiency of the duct air conditioner, a fan assembly, duct air conditioner and air conditioning system are provided, which group fans according to the air outlet direction and select the corresponding fan group to supply air as needed to ensure the heat exchange efficiency of the duct air conditioner.

[0005] A fan assembly, comprising:

[0006] At least two fans, all of which are coaxially arranged and have adjustable air outlet directions, and the fans with the same air outlet direction constitute a fan group;

[0007] A power mechanism, wherein the power mechanism can be connected to all fans in any group of the fan groups through a switching structure.

[0008] The fan includes a first fan, a second fan, a third fan and a fourth fan which are arranged in sequence, the first fan and the fourth fan constitute a first fan group, the second fan and the third fan constitute a second fan group, and the power mechanism is connected to the first fan group or the second fan group through the switching structure.

[0009] The first fan and the fourth fan are arranged on the first drive shaft, the second fan is arranged on the second drive shaft, and the third fan is arranged on the third drive shaft. The first drive shaft, the second drive shaft and the third drive shaft are coaxially arranged, and when the power mechanism is connected to the first fan group, the switching structure is transmission connected to the first drive shaft; when the power mechanism is connected to the second fan group, the switching structure is transmission connected to the second drive shaft and the third drive shaft at the same time.

[0010] The second drive shaft and the third drive shaft are both hollow shafts, the middle part of the first drive shaft is located between the second drive shaft and the third drive shaft, and one end of the first drive shaft passes through the second drive shaft to be connected to the first fan, and the other end of the first drive shaft passes through the third drive shaft to be connected to the fourth fan, the switching structure is arranged between the second fan and the third fan, and when the power mechanism is connected to the first fan group, the switching structure is transmission-connected to the middle part of the first drive shaft.

[0011] The switching structure comprises:

[0012] Adjustment lever;

[0013] An active transmission member is arranged on the adjusting rod, and a driven transmission member is arranged on the first driving shaft, the second driving shaft and the third driving shaft. The adjusting rod can drive the active transmission member to move so that the active transmission member is engaged or disconnected with the corresponding driven transmission member.

[0014] The adjusting rod can move in the axial direction of the first driving shaft so that the active transmission member and the corresponding driven transmission member are moved closer to or farther away from each other.

[0015] The active transmission member and the driven transmission member are both bevel gears.

[0016] The switching structure further comprises a driving mechanism, and the driving mechanism can drive the adjusting rod to move.

[0017] The driving mechanism includes an electromagnetic coil.

[0018] The fan assembly is applied to an air duct machine, which has a lower air outlet and a side air outlet. The first fan and the fourth fan discharge air toward the lower air outlet, and the second fan and the third fan discharge air toward the side air outlet.

[0019] The duct air conditioner has a heating mode and a cooling mode. When the duct air conditioner is in the heating mode, the power mechanism is connected to the first fan unit through the switching structure; when the duct air conditioner is in the cooling mode, the power mechanism is connected to the second fan unit through the switching structure.

[0020] A duct fan comprises the above-mentioned fan assembly.

[0021] An air conditioning system comprises the above-mentioned fan assembly or the above-mentioned duct air conditioner.

[0022] The fan assembly, duct unit and air-conditioning system provided by the present invention utilize fans with different air outlet directions to realize air supply in different directions of the duct unit, and utilize a switching structure to perform reliable switching, so as to be able to reliably control the fan that needs to work to work, thereby overcoming the problem in the prior art that the air outlet direction of the duct unit can only be adjusted by changing the direction of the fan. The duct unit can obtain reliable air volume in both cooling mode and heating mode, thereby ensuring the heat exchange efficiency of the duct unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of the structure of a fan assembly provided by an embodiment of the present invention;

[0024] Figure 2 Another structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0025] In the figure:

[0026] 1. Power mechanism; 21. First fan; 22. Second fan; 23. Third fan; 24. Fourth fan; 25. First drive shaft; 26. Second drive shaft; 27. Third drive shaft; 31. Adjustment rod; 32. Active transmission member; 33. Driven transmission member; 34. Drive mechanism. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0028] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0030] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The prior art generally adopts the method of controlling the fan to reverse to achieve the reverse air outlet of the fan, so that the indoor unit can simultaneously achieve the purpose of horizontal air supply and vertical air supply. However, the air volume is small when the fan is reversed. If the duct unit is cooling when the fan rotates forward, the fan needs to be reversed when the duct unit is heating, resulting in poor heating capacity of the duct unit. Similarly, if the duct unit is heating when the fan rotates forward, the fan needs to be reversed when the duct unit is cooling, resulting in poor cooling capacity of the duct unit. Both solutions will seriously affect the heat exchange efficiency of the duct unit.

[0033] To this end, the present application provides a Figure 1 and Figure 2The fan assembly shown includes: at least two fans, all of which are coaxially arranged and have adjustable air outlet directions, and the fans with the same air outlet direction constitute a fan group; a power mechanism 1, which can be connected to all fans in any group of the fan groups through a switching structure. Fans with different air outlet directions are used to realize air supply in different directions of the duct machine, and the switching structure is used for reliable switching, so that the fans that need to work can be reliably controlled to work, which overcomes the problem in the prior art that the air outlet direction of the duct machine can only be adjusted by changing the direction of the fan. The duct machine can obtain reliable air volume in both cooling mode and heating mode, ensuring the heat exchange efficiency of the duct machine.

[0034] Specifically, in order to ensure the air volume of the fan assembly, the fan includes a first fan 21, a second fan 22, a third fan 23 and a fourth fan 24 which are arranged in sequence, the first fan 21 and the fourth fan 24 form a first fan group, the second fan 22 and the third fan 23 form a second fan group, and the power mechanism 1 is connected to the first fan group or the second fan group through the switching structure. That is, the first fan 21 and the fourth fan 24 supply air in the first direction, and the second fan 22 and the third fan 23 supply air in the second direction, so as to ensure that the fan assembly has a good air volume in both the first direction and the second direction.

[0035] Since the first fan 21 and the fourth fan 24 are located at both ends of the four fans, in order to ensure that the first fan 21 and the fourth fan 24 can rotate synchronously, the first fan 21 and the fourth fan 24 are arranged on the first drive shaft 25, the second fan 22 is arranged on the second drive shaft 26, and the third fan 23 is arranged on the third drive shaft 27. The first drive shaft 25, the second drive shaft 26 and the third drive shaft 27 are coaxially arranged, so that the parallel and coaxial distribution of the first fan 21 to the fourth fan 24 can be ensured. When the fan assembly is applied to When installed on the duct machine, the first fan 21 to the fourth fan 24 can be installed in the fan cavity inside the duct machine at the same time, which is convenient for the arrangement of the fan components, and when the power mechanism 1 is connected to the first fan group, the switching structure is connected to the first drive shaft 25 by transmission, so as to ensure that the first fan 21 and the fourth fan 24 can work; when the power mechanism 1 is connected to the second fan group, the switching structure is connected to the second drive shaft 26 and the third drive shaft 27 by transmission, so as to ensure that the second fan 22 and the third fan 23 can work.

[0036] Specifically, the second drive shaft 26 and the third drive shaft 27 are both hollow shafts, the middle part of the first drive shaft 25 is located between the second drive shaft 26 and the third drive shaft 27, and one end of the first drive shaft 25 passes through the second drive shaft 26 to be connected to the first fan 21, and the other end of the first drive shaft 25 passes through the third drive shaft 27 to be connected to the fourth fan 24, the switching structure is arranged between the second fan 22 and the third fan 23, and when the power mechanism 1 is connected to the first fan unit, the switching structure is connected to the middle part of the first drive shaft 25 by transmission, and the setting of the hollow shaft facilitates the first drive shaft 25 to be connected to the first fan 21 and the fourth fan The connection of 24 can also facilitate the arrangement of the position of the switching structure. At this time, the switching structure only needs to be between the second fan 22 and the third fan 23 to simultaneously realize the driving of the first fan 21, the second fan 22, the third fan 23 and the fourth fan 24, and it can also make the first fan 21 and the second fan 22 and the third fan 23 and the fourth fan 24 have a certain distance. The duct machine can be provided with two side air outlets and two lower air outlets in the axial direction of the first driving shaft 25, so that the first fan 21 can correspond to one lower air outlet, the fourth fan 24 can correspond to the other lower air outlet, the second fan 22 can correspond to one side air outlet, and the third fan 23 can correspond to the other side air outlet, thereby ensuring the air supply volume of the duct machine.

[0037] As an embodiment, the switching structure includes: an adjusting rod 31; an active transmission member 32, wherein the active transmission member 32 is arranged on the adjusting rod 31, and a driven transmission member 33 is arranged on the first driving shaft 25, the second driving shaft 26 and the third driving shaft 27, and the adjusting rod 31 can drive the active transmission member 32 to move so that the active transmission member 32 is engaged or disconnected with the corresponding driven transmission member 33. The position of the active transmission member 32 is changed by moving the adjusting rod 31, so that the active transmission member 32 can be engaged or disconnected with different driven transmission members 33. When the first fan 21 and the fourth fan 24 are required to work, the active transmission member 32 is engaged with the driven transmission member 33 on the first drive shaft 25 and disconnected from the driven transmission member 33 on the second drive shaft 26 and the driven transmission member 33 on the third drive shaft 27, so that the power mechanism 1 can only drive the first drive shaft 25 to rotate through the active transmission member 32 and the driven transmission member 33; similarly, when the second fan 22 and the third fan 23 are required to work, the active transmission member 32 is simultaneously engaged with the driven transmission member 33 on the second drive shaft 26 and the driven transmission member 33 on the third drive shaft 27 and disconnected from the driven transmission member 33 on the first drive shaft 25, so that the power mechanism 1 can only drive the second drive shaft 26 and the third drive shaft 27 to rotate through the active transmission member 32 and the driven transmission member 33.

[0038] Furthermore, the adjusting rod 31 can move in the axial direction of the first driving shaft 25 so that the active transmission member 32 and the corresponding driven transmission member 33 are closer to or farther away from each other, that is, the adjusting rod 31 can drive the active transmission member 32 to move in the axial direction, thereby ensuring reliable cooperation between the active transmission member 32 and the corresponding driven transmission member 33, and reducing the volume of the switching structure, thereby further reducing the space occupied by the fan assembly.

[0039] Preferably, the active transmission member 32 and the driven transmission member 33 are both bevel gears. When the active transmission member 32 moves along the axial direction, the bevel gears can reliably mesh with each other to ensure that the power of the power mechanism 1 is reliably transmitted to the first to fourth fans 21 to 24.

[0040] like Figure 2 As shown, the active transmission member 32 corresponds to the driven transmission member 33 one by one, and the number is three. The three active transmission members include a first active transmission member, a second active transmission member and a third active transmission member. The driven transmission member includes a first driven transmission member arranged on the first driving shaft 25, a second driven transmission member arranged on the second driving shaft 26 and a third driven transmission member arranged on the third driving shaft 27. The first active transmission member cooperates with the first driven transmission member, the second active transmission member cooperates with the second driven transmission member, and the third active transmission member cooperates with the third driven transmission member. When the adjusting rod 31 moves to the left, at this time The first active transmission member gradually approaches the first driven transmission member, and the second active transmission member gradually moves away from the second driven transmission member, and the third active transmission member gradually moves away from the third driven transmission member, and finally only the first active transmission member and the first driven transmission member can mesh with each other. When the adjusting rod 31 moves to the right, the first active transmission member gradually moves away from the first driven transmission member, and the second active transmission member gradually approaches the second driven transmission member, and the third active transmission member gradually approaches the third driven transmission member, and finally the second active transmission member and the second driven transmission member can mesh with each other, and the third active transmission member and the third driven transmission member can mesh with each other.

[0041] In order to realize automatic switching of the fan assembly, the switching structure also includes a driving mechanism 34, which can drive the adjusting rod 31 to move, and utilize the power of the driving mechanism 34 to realize automatic switching, so that the air duct machine where the fan assembly is located can automatically switch the air supply direction.

[0042] Optionally, the driving mechanism 34 includes an electromagnetic coil, and the electromagnetic coil is energized and de-energized to achieve movement of the adjustment rod 31 in different directions, thereby achieving adjustment of the air supply direction of the fan assembly.

[0043] The fan assembly is applied to an air duct machine, which has a lower air outlet and a side air outlet. The first fan 21 and the fourth fan 24 discharge air toward the lower air outlet, and the second fan 22 and the third fan 23 discharge air toward the side air outlet, ensuring that the air duct machine has a good air volume at both the lower air outlet and the side air outlet, thereby ensuring the heat exchange efficiency of the air duct machine in different modes.

[0044] The duct air conditioner has a heating mode and a cooling mode. When the duct air conditioner is in the heating mode, the power mechanism 1 is connected to the first fan unit through the switching structure, and the hot air can be blown downward through the lower air outlet, quickly reach the ground and spread on the ground, thereby achieving the purpose of carpet-style heating; when the duct air conditioner is in the cooling mode shown, the power mechanism 1 is connected to the second fan unit through the switching structure, and the cold air will be blown out horizontally through the side air outlet, and then flow downward under the action of gravity, thereby achieving bathing-style cooling.

[0045] A duct fan comprises the above-mentioned fan assembly.

[0046] An air conditioning system comprises the above-mentioned fan assembly or the above-mentioned duct air conditioner.

[0047] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A fan assembly, characterized in that: include: At least two fans, all of which are coaxially arranged and have adjustable air outlet directions, and the fans with the same air outlet direction constitute a fan group; A power mechanism (1), wherein the power mechanism (1) can be connected to all fans in any group of the fan groups through a switching structure.

2. The fan assembly according to claim 1, characterized in that: The fan comprises a first fan (21), a second fan (22), a third fan (23) and a fourth fan (24) which are arranged in sequence; the first fan (21) and the fourth fan (24) form a first fan group; the second fan (22) and the third fan (23) form a second fan group; and the power mechanism (1) is connected to the first fan group or the second fan group via the switching structure.

3. The fan assembly according to claim 2, characterized in that: The first fan (21) and the fourth fan (24) are arranged on a first drive shaft (25), the second fan (22) is arranged on a second drive shaft (26), and the third fan (23) is arranged on a third drive shaft (27). The first drive shaft (25), the second drive shaft (26) and the third drive shaft (27) are arranged coaxially, and when the power mechanism (1) is connected to the first fan group, the switching structure is transmission-connected to the first drive shaft (25); when the power mechanism (1) is connected to the second fan group, the switching structure is transmission-connected to the second drive shaft (26) and the third drive shaft (27) at the same time.

4. The fan assembly according to claim 3, characterized in that: The second drive shaft (26) and the third drive shaft (27) are both hollow shafts, the middle part of the first drive shaft (25) is located between the second drive shaft (26) and the third drive shaft (27), and one end of the first drive shaft (25) passes through the second drive shaft (26) to be connected to the first fan (21), and the other end of the first drive shaft (25) passes through the third drive shaft (27) to be connected to the fourth fan (24), the switching structure is arranged between the second fan (22) and the third fan (23), and when the power mechanism (1) is connected to the first fan assembly, the switching structure is in transmission connection with the middle part of the first drive shaft (25).

5. The fan assembly according to claim 3, characterized in that: The switching structure comprises: Adjustment rod (31); An active transmission member (32), the active transmission member (32) being arranged on the adjusting rod (31), and a driven transmission member (33) being arranged on the first driving shaft (25), the second driving shaft (26) and the third driving shaft (27), and the adjusting rod (31) can drive the active transmission member (32) to move so that the active transmission member (32) is engaged with or disengaged from the corresponding driven transmission member (33).

6. The fan assembly according to claim 5, characterized in that: The adjusting rod (31) can move in the axial direction of the first driving shaft (25) so that the active transmission member (32) and the corresponding driven transmission member (33) are moved closer to or farther away from each other.

7. The fan assembly according to claim 5, characterized in that: The active transmission member (32) and the driven transmission member (33) are both bevel gears.

8. The fan assembly according to claim 5, characterized in that: The switching structure further comprises a driving mechanism (34), and the driving mechanism (34) is capable of driving the adjusting rod (31) to move.

9. The fan assembly according to claim 8, characterized in that: The driving mechanism (34) comprises an electromagnetic coil.

10. The fan assembly according to claim 2, characterized in that: The fan assembly is applied to an air duct machine, the air duct machine has a lower air outlet and a side air outlet, the first fan (21) and the fourth fan (24) discharge air toward the lower air outlet, and the second fan (22) and the third fan (23) discharge air toward the side air outlet.

11. The fan assembly according to claim 10, characterized in that: The duct air conditioner has a heating mode and a cooling mode. When the duct air conditioner is in the heating mode, the power mechanism (1) is connected to the first fan unit via the switching structure; when the duct air conditioner is in the cooling mode, the power mechanism (1) is connected to the second fan unit via the switching structure.

12. A duct machine, characterized in that: The invention comprises the fan assembly according to any one of claims 1 to 11.

13. An air conditioning system, characterized in that: It comprises the fan assembly according to any one of claims 1 to 11 or the duct fan according to claim 12.

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