Fan assembly, duct type air conditioner and air conditioner

Abstract

The invention provides a fan assembly, a duct type air conditioner and an air conditioner. The fan assembly comprises a fixed volute; a movable volute; the positioning structure is arranged between the fixed volute and the movable volute, and the movable volute and the fixed volute are subjected to axial positioning and / or circumferential positioning through the positioning structure. According to the fan assembly, the duct type air conditioner and the air conditioner, the movable volute and the fixed volute are matched, air supply of the fan assembly in different directions is achieved on the basis that the rotating direction of the fan blades in the fan assembly is not changed, the working reliability of the fan assembly is guaranteed, and the service life of the fan assembly is prolonged. The duct type air conditioner can obtain reliable air volume in a refrigerating mode or a heating mode, the heat exchange efficiency of the duct type air conditioner is guaranteed, meanwhile, the locating structure is used for guaranteeing reliable relative movement between the movable volute and the fixed volute, and the structural reliability of the fan assembly is guaranteed.

Description

Technical Field

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

[0002] In some related technologies, ducted air conditioners use horizontal lateral air supply. In heating mode, the hot air is blown out horizontally. Due to the low density of hot air, the hot air floats upward, 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 used. 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 that the fan structure in the prior art cannot ensure the heat exchange efficiency of the duct air conditioner, a fan assembly, duct air conditioner and air conditioner are provided which utilize a movable volute to adjust the air supply direction without adjusting the fan direction to ensure the heat exchange efficiency.

[0005] A fan assembly, comprising:

[0006] A fixed volute, wherein the fixed volute is provided with a first air outlet and a second air outlet;

[0007] A movable volute, wherein the movable volute is rotatably disposed in the fixed volute, and the movable volute has a first state in which the first air outlet is closed and the second air outlet is opened, and the movable volute also has a second state in which the first air outlet is opened and the second air outlet is closed;

[0008] A positioning structure is provided between the fixed volute and the movable volute, and the movable volute is axially positioned and / or circumferentially positioned with the fixed volute through the positioning structure.

[0009] At least two rollers are arranged on the fixed volute, all the rollers are distributed in a ring shape with the axis of the fixed volute as the axis, and the rollers are in abutment with the peripheral side walls of the movable volute, and all the rollers constitute the positioning structure.

[0010] The fan assembly also includes an air collecting structure, an air inlet is provided on the end face of the fixed volute, the air collecting structure is provided at the air inlet, and the air collecting structure is connected to the movable volute through the air inlet, the roller is provided on the outer surface of the end face of the fixed volute, and the roller is abutted against the air collecting structure.

[0011] The fixed volute has a first end face, the movable volute has a second end face adjacent to the first end face, a distance h is provided between the first end face and the second end face, and the positioning structure is arranged within the distance h to axially position the fixed volute and the movable volute.

[0012] The first end surface protrudes into the interval h to form a protrusion, and the distance from the protrusion to the second end surface is smaller than the distance from the first end surface to the second end surface. The protrusion constitutes the positioning structure.

[0013] The second end surface protrudes into the interval h to form a protrusion, the distance between the protrusion and the first end surface is smaller than the distance between the second end surface and the first end surface, and the protrusion constitutes the positioning structure.

[0014] An air inlet is arranged on the first end face of the fixed volute, and a circumferential limiter is arranged on the movable volute. The circumferential limiter extends into the air inlet and can abut against the edge of the air inlet, and the circumferential limiter constitutes the positioning structure.

[0015] The movable volute has a second end surface, the second end surface is arranged adjacent to the first end surface, and the circumferential limiter is arranged on the second end surface.

[0016] The number of the circumferential limit members is at least two, and all the circumferential limit members are distributed on the second end surface in a ring shape with the axis of the fixed volute as the axis.

[0017] A protrusion is provided on the side wall of the circumferential limiter facing the first end surface, and the protrusion can abut and cooperate with the first end surface. The protrusion and the circumferential limiter together constitute the positioning structure.

[0018] The protrusion member includes a first protrusion structure and a second protrusion structure, and the height of the first protrusion structure is greater than the height of the second protrusion structure.

[0019] The fan assembly further comprises a mounting structure and a connecting piece, wherein the mounting structure is arranged on the movable volute, the connecting piece is connected to the mounting structure, and the circumferential limiting piece is arranged on the free end of the connecting piece.

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

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

[0022] The fan assembly, duct unit and air conditioner provided by the present invention utilize a movable volute to cooperate with a fixed volute to realize air supply in different directions of the fan assembly without changing the rotation direction of the fan blades in the fan assembly, thereby overcoming the problem in the prior art that the air supply direction needs to be adjusted by changing the rotation direction of the fan blades, thereby reducing the air volume, thereby ensuring the working reliability of the fan assembly. The duct unit can also obtain reliable air volume in both cooling mode and heating mode, thereby ensuring the heat exchange efficiency of the duct unit. At the same time, a positioning structure is utilized to ensure the reliability of the relative movement between the movable volute and the fixed volute, thereby ensuring the structural reliability of the fan assembly. 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 A partial schematic diagram of a roller of a fan assembly provided in an embodiment of the present invention;

[0025] Figure 3 Another structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0026] Figure 4 for Figure 3 A partial schematic diagram of

[0027] Figure 5 Another structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0028] Figure 6 Another structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0029] Figure 7 for Figure 6 A partial schematic diagram of

[0030] Figure 8 Another structural schematic diagram of a fan assembly provided by an embodiment of the present invention;

[0031] Fig. 9 for Figure 8 A partial schematic diagram of

[0032] Fig.10 A schematic diagram of the structure of a circumferential limiter and a protruding member provided in an embodiment of the present invention;

[0033] Fig.11 A side air outlet principle diagram of a duct air conditioner provided in an embodiment of the present invention;

[0034] Fig.12 A schematic diagram of the downward air outlet of the duct air conditioner provided in an embodiment of the present invention;

[0035] In the figure:

[0036] 1. Fixed volute; 11. First air outlet; 12. Second air outlet; 2. Movable volute; 3. Roller; 4. Air collecting structure; 13. Air inlet; 14. First end face; 21. Second end face; 5. Protrusion; 6. Circumferential limiter; 10. Duct machine; 71. Mounting structure; 72. Connector. DETAILED DESCRIPTION

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] To this end, the present application provides a Figures 1 to 12 The fan assembly shown includes: a fixed volute 1, on which a first air outlet 11 and a second air outlet 12 are provided; a movable volute 2, which is rotatably arranged in the fixed volute 1, and the movable volute 2 has a first state in which the first air outlet 11 is closed and the second air outlet 12 is opened, and the movable volute 2 also has a second state in which the first air outlet 11 is opened and the second air outlet 12 is closed; a positioning structure, which is arranged between the fixed volute 1 and the movable volute 2, and the movable volute 2 is axially positioned and / or circumferentially positioned with the fixed volute 1 through the positioning structure. By utilizing the cooperation between the movable volute 2 and the fixed volute 1, the fan assembly can supply air in different directions without changing the rotation direction of the fan blades in the fan assembly, thereby overcoming the problem in the prior art of reducing the air volume by changing the rotation direction of the fan blades to adjust the air supply direction, thereby ensuring the working reliability of the fan assembly. The duct machine can also obtain reliable air volume in both cooling mode and heating mode, thereby ensuring the heat exchange efficiency of the duct machine. At the same time, the positioning structure is utilized to ensure the reliability of the relative movement between the movable volute 2 and the fixed volute 1, thereby ensuring the structural reliability of the fan assembly.

[0044] Specifically, at least two rollers 3 are provided on the fixed volute 1, and all the rollers 3 are distributed in a ring shape with the axis of the fixed volute 1 as the axis, and the rollers 3 are in abutment with the peripheral side walls of the movable volute 2, and all the rollers 3 constitute the positioning structure. The rollers 3 are used to abut the peripheral side of the movable volute 2, so as to ensure that the position of the movable volute 2 and the fixed volute 1 is relatively reliable, and also ensure that the movable volute 2 can rotate reliably. Preferably, the number of rollers 3 is four, the rotating shafts of three rollers 3 are fixedly arranged on the fixed volute 1, and the rotating shaft of the remaining roller 3 is movably arranged on the fixed volute 1. The movability of the rollers 3 is used to provide space for the disassembly and assembly of the movable volute 2. When disassembling and assembling the movable volute 2, the movable roller 3 is moved on the fixed volute 1, and then the movable volute 2 is placed in the fixed volute 1, and the movable volute 2 is abutted against the three fixed rollers 3. After the movable volute 2 is installed, the movable roller 3 is moved to a position abutting against the movable volute 2, thereby realizing reliable limitation of the circumferential degree of freedom of the movable volute 2. It should be noted that all rollers 3 can still rotate along their corresponding rotating shafts relative to the fixed volute 1. The movable roller 3 means that the position of its rotating shaft can be movable relative to the fixed volute 1. At the same time, three fixed rollers 3 are set to complete the circumferential positioning of the movable volute 2. The movable roller 3 can lock the installation direction of the movable volute 2 to ensure that the movable volute 2 is installed reliably.

[0045] Since the movable volute 2 is located inside the fixed volute 1 and is inconvenient to install, the fan assembly further includes an air collecting structure 4, an air inlet 13 is provided on the end face of the fixed volute 1, the air collecting structure 4 is provided at the air inlet 13, and the air collecting structure 4 is connected to the movable volute 2 through the air inlet 13, the roller 3 is provided on the outer surface of the end face of the fixed volute 1, and the roller 3 is abutted against the air collecting structure 4. The air collecting structure 4 is used to improve the air intake effect of the fan assembly, and it is also convenient for the roller 3 to limit the circumferential position of the movable volute 2, thereby improving the structural reliability of the fan assembly.

[0046] Since the air inlet 13 is arranged on the end face of the fixed volute 1, the fan assembly takes in air from one side of the fan assembly at this time, and the air intake will flow through the movable volute 2, causing the movable volute 2 to move axially relative to the fixed volute 1. For this reason, the fixed volute 1 has a first end face 14, and the movable volute 2 has a second end face 21 adjacent to the first end face 14. There is a spacing h between the first end face 14 and the second end face 21, and the positioning structure is arranged within the spacing h to axially position the fixed volute 1 and the movable volute 2. The positioning structure is used to axially position the fixed volute 1 and the movable volute 2, so as to avoid mutual interference between the first end face 14 and the second end face 21 due to the axial movement of the movable volute 2, and ensure the reliable movement of the movable volute 2.

[0047] As an embodiment, the first end surface 14 protrudes into the interval h to form a protrusion 5, and the distance between the protrusion 5 and the second end surface 21 is smaller than the distance between the first end surface 14 and the second end surface 21, and the protrusion 5 constitutes the positioning structure. The protrusion 5 is used to reduce the contact area when the movable volute 2 and the fixed volute 1 interfere with each other, thereby reducing the friction between the movable volute 2 and the fixed volute 1, and ensuring the reliable movement of the movable volute 2.

[0048] Alternatively, the second end surface 21 protrudes into the interval h to form a protrusion 5, the distance between the protrusion 5 and the first end surface 14 is smaller than the distance between the second end surface 21 and the first end surface 14, and the protrusion 5 constitutes the positioning structure. The protrusion 5 is used to reduce the contact area when the movable volute 2 and the fixed volute 1 interfere with each other, thereby reducing the friction between the movable volute 2 and the fixed volute 1, and ensuring the reliable movement of the movable volute 2.

[0049] In order to further ensure the coaxiality between the movable volute 2 and the fixed volute 1, an air inlet 13 is provided on the first end face 14 of the fixed volute 1, and a circumferential stopper 6 is provided on the movable volute 2. The circumferential stopper 6 extends into the air inlet 13, and the circumferential stopper 6 can abut against the edge of the air inlet 13, and the circumferential stopper 6 constitutes the positioning structure. The circumferential stopper 6 extends into the air inlet 13 to abut against the edge of the air inlet 13, and the circumferential stopper 6 can rotate relative to the edge of the air inlet 13, so as to ensure reliable positioning and rotation of the movable volute 2.

[0050] The movable volute 2 has a second end face 21, which is arranged adjacent to the first end face 14, and the circumferential stopper 6 is arranged on the second end face 21. The second end face 21 is used to seal with the first end face 14 around the air inlet 13, and a through hole is arranged on the second end face 21, through which the air inlet 13 can be connected with the interior of the fixed volute 1, and the second end face 21 part around the through hole and the first end face 14 part around the air inlet 13 can make the interval h between the movable volute 2 and the fixed volute 1 form a narrow and long channel, increase the flow resistance at the interval h, improve the sealing effect, and thus improve the air supply efficiency of the fan assembly.

[0051] Furthermore, the number of the circumferential limit members 6 is at least two, and all of the circumferential limit members 6 are distributed in a ring shape on the second end surface 21 with the axis of the fixed volute 1 as the axis. Multiple circumferential limit members 6 are used to achieve multi-point abutment positioning with the air inlet 13, further improving the reliability of the circumferential positioning of the movable volute 2.

[0052] The circumferential limiting member 6 is detachably arranged on the movable volute 2 , so that the circumferential limiting member 6 can be easily replaced.

[0053] The side wall of the circumferential limiter 6 facing the first end face 14 is provided with a protrusion 5, and the protrusion 5 can be abutted and matched with the first end face 14, and the protrusion 5 and the circumferential limiter 6 together constitute the positioning structure. The protrusion 5 is used to reduce the contact area when the movable volute 2 and the fixed volute 1 interfere with each other, thereby reducing the friction between the movable volute 2 and the fixed volute 1, achieving axial positioning of the movable volute 2, and ensuring reliable movement of the movable volute 2.

[0054] Furthermore, the protrusion 5 includes a first protrusion structure and a second protrusion structure, and the height of the first protrusion structure is greater than the height of the second protrusion structure. When the movable volute 2 moves axially, the protrusion 5 comes into contact with the fixed volute 1. At this time, the first protrusion structure first comes into contact with the fixed volute 1, and the second protrusion structure is used as a backup. When the first protrusion structure is worn to a certain extent, the second protrusion structure can also come into contact with the fixed volute 1 or the movable volute 2 to ensure the reliable movement of the movable volute 2. When the second protrusion structure comes into contact with the fixed volute 1 or the movable volute 2, it indicates that the protrusion 5 needs to be replaced or the movable volute 2 is subjected to a large force in the axial direction and the fan assembly needs to be repaired.

[0055] Preferably, the fan assembly further comprises a mounting structure 71 and a connecting member 72, wherein the mounting structure 71 is arranged on the movable volute 2, the connecting member 72 is connected to the mounting structure 71, and the circumferential limiter 6 is arranged on the free end of the connecting member 72. The mounting structure 71 is used to facilitate the disassembly and assembly between the circumferential limiter 6 and the movable volute 2, and the length of the connecting member 72 enables the connecting member 72 to be bent to a certain extent, and this bending enables the circumferential limiter 6 to be slightly displaced in the circumferential direction relative to the movable volute 2, thereby preventing the circumferential limiter 6 from being stuck with the edge of the air inlet 13 while ensuring reliable cooperation with the edge of the circumferential limiter 6 and the air inlet 13, thereby ensuring reliable rotation of the movable volute 2 and further ensuring the structural reliability of the fan assembly.

[0056] A duct fan comprises the above-mentioned fan assembly.

[0057] The duct machine has a cooling mode and a heating mode, with the first air outlet 11 facing the side wall of the duct machine and the second air outlet 12 facing the bottom wall of the duct machine. When the duct machine is in the cooling mode, the movable volute 2 opens the first air outlet 11 and closes the second air outlet 12. The cold air generated when the duct machine is cooling will be blown out horizontally through the first air outlet 11, and then flow downward under the action of gravity, realizing bathing-style cooling; when the duct machine is in the heating mode, the movable volute 2 opens the second air outlet 12 and closes the first air outlet 11, and the hot air can be blown out downward through the second air outlet 12, quickly reach the ground and spread on the ground, realizing the purpose of carpet-style heating, and effectively improving the user experience of the duct machine.

[0058] An air conditioner comprises the above-mentioned fan assembly or the above-mentioned air duct unit.

[0059] 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: A fixed volute (1), wherein the fixed volute (1) is provided with a first air outlet (11) and a second air outlet (12); a movable volute (2), the movable volute (2) being rotatably disposed in the fixed volute (1), and the movable volute (2) having a first state of closing the first air outlet (11) and opening the second air outlet (12), and the movable volute (2) also having a second state of opening the first air outlet (11) and closing the second air outlet (12); A positioning structure, wherein the positioning structure is arranged between the fixed volute (1) and the movable volute (2), and the movable volute (2) is axially positioned and / or circumferentially positioned with the fixed volute (1) through the positioning structure.

2. The fan assembly according to claim 1, characterized in that: At least two rollers (3) are provided on the fixed volute (1), all the rollers (3) are distributed in a ring shape with the axis of the fixed volute (1) as the axis, and the rollers (3) are in abutment with the peripheral side walls of the movable volute (2), and all the rollers (3) constitute the positioning structure.

3. The fan assembly according to claim 2, characterized in that: The fan assembly also includes an air collecting structure (4), an air inlet (13) is provided on the end face of the fixed volute (1), the air collecting structure (4) is arranged at the air inlet (13), and the air collecting structure (4) is connected to the movable volute (2) through the air inlet (13), the roller (3) is arranged on the outer surface of the end face of the fixed volute (1), and the roller (3) is abutted against the air collecting structure (4).

4. The fan assembly according to claim 1, characterized in that: The fixed volute (1) has a first end face (14), the movable volute (2) has a second end face (21) adjacent to the first end face (14), a spacing h is provided between the first end face (14) and the second end face (21), and the positioning structure is arranged within the spacing h to axially position the fixed volute (1) and the movable volute (2).

5. The fan assembly according to claim 4, characterized in that: The first end surface (14) protrudes into the interval h to form a protruding piece (5), the distance between the protruding piece (5) and the second end surface (21) is smaller than the distance between the first end surface (14) and the second end surface (21), and the protruding piece (5) constitutes the positioning structure.

6. The fan assembly according to claim 4, characterized in that: The second end surface (21) protrudes into the interval h to form a protruding piece (5), the distance between the protruding piece (5) and the first end surface (14) is smaller than the distance between the second end surface (21) and the first end surface (14), and the protruding piece (5) constitutes the positioning structure.

7. The fan assembly according to claim 1, characterized in that: An air inlet (13) is arranged on the first end surface (14) of the fixed volute (1), and a circumferential limiter (6) is arranged on the movable volute (2). The circumferential limiter (6) extends into the air inlet (13), and the circumferential limiter (6) can abut against the edge of the air inlet (13), and the circumferential limiter (6) constitutes the positioning structure.

8. The fan assembly according to claim 7, characterized in that: The movable volute (2) has a second end surface (21), the second end surface (21) is arranged adjacent to the first end surface (14), and the circumferential limiter (6) is arranged on the second end surface (21).

9. The fan assembly according to claim 8, characterized in that: The number of the circumferential limiting members (6) is at least two, and all the circumferential limiting members (6) are distributed on the second end surface (21) in a ring shape with the axis of the fixed volute (1) as the axis.

10. The fan assembly according to claim 8, characterized in that: A protrusion (5) is provided on the side wall of the circumferential limiter (6) facing the first end surface (14); the protrusion (5) can abut against the first end surface (14); and the protrusion (5) and the circumferential limiter (6) together constitute the positioning structure.

11. The fan assembly according to any one of claims 5, 6 or 10, characterized in that: The protruding member (5) comprises a first protruding structure and a second protruding structure, wherein the height of the first protruding structure is greater than the height of the second protruding structure.

12. The fan assembly according to claim 7, characterized in that: The fan assembly further comprises a mounting structure (71) and a connecting member (72), wherein the mounting structure (71) is arranged on the movable volute (2), the connecting member (72) is connected to the mounting structure (71), and the circumferential limiting member (6) is arranged on the free end of the connecting member (72).

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

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

Images