Fan assembly and air conditioner

Abstract

The present invention provides a fan assembly and an air conditioner, wherein the fan assembly includes a mounting plate for detachably connecting with a partition, and a fan assembly and a motor assembly arranged on the mounting plate, the fan assembly includes a volute, a wind wheel and a mounting shaft, the wind wheel is fixed on the mounting shaft and is located in the volute, and the end of the volute is provided with a through hole and a support structure, and the support structure is arranged around the through hole. The present invention improves the structural strength of the volute at the end by arranging a support structure at the end of the volute, and the support structure is arranged around the through hole, thereby improving the structural strength of the volute as a whole; and further strengthens the protective effect of the volute on the wind wheel located in the volute, ensuring that the wind wheel can work stably.

Description

Technical Field

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

[0002] For example, a ducted air conditioner generally has a volute that can be split up and down to facilitate the installation of the wind wheel into the volute. However, since openings need to be provided at the left and right ends of the volute for connecting the wind wheel to the motor, the structural strength of the volute at the left and right ends is relatively low, making the volute easily damaged during installation, disassembly or use. Summary of the invention

[0003] The problem solved by the present invention is: how to improve the structural strength of the volute at the end.

[0004] To solve the above problems, the present invention provides a fan assembly, including a mounting plate for detachably connecting to a partition, and a fan assembly and a motor assembly arranged on the mounting plate, the fan assembly including a volute, a wind wheel and a mounting shaft, the wind wheel is fixed on the mounting shaft and is located in the volute, and the end of the volute is provided with a through hole and a support structure, and the support structure is arranged around the through hole.

[0005] Therefore, by arranging a supporting structure at the end of the volute, and arranging the supporting structure around the through hole, the structural strength of the volute at the end is improved, thereby improving the overall structural strength of the volute; and further strengthening the protective effect of the volute on the wind wheel located in the volute, ensuring that the wind wheel can work stably.

[0006] Optionally, the volute comprises an upper volute and a lower volute, and the upper volute and the lower volute are snap-fitted together via a snap-fit ​​structure.

[0007] Therefore, the volute includes an upper volute and a lower volute that are detachably connected by a snap-fit ​​structure. By setting the snap-fit ​​structure, while ensuring the stability of the connection between the upper volute and the lower volute, a detachable connection is formed between the upper volute and the lower volute, so as to facilitate the smooth installation of the wind wheel between the upper volute and the lower volute.

[0008] Optionally, the support structure includes a first support rib arranged on both sides of the upper volute and a second support rib arranged on both sides of the lower volute; the first support rib and the second support rib surround the through hole, and the through hole is coaxially arranged with the mounting axis.

[0009] Therefore, by providing the first supporting rib and the second supporting rib, the installation shaft is supported and positioned, thereby ensuring that the installation shaft is coaxial with the motor shaft and ensuring the stability of the wind wheel when it rotates with the installation shaft.

[0010] Optionally, annular positioning grooves are provided at positions corresponding to the through holes at both ends of the installation shaft, and the diameter of the through holes is larger than the diameter of the installation shaft at the annular positioning grooves and smaller than the diameter of the direct projection of the installation shaft on a plane perpendicular to the axis of the installation shaft.

[0011] Therefore, the first support rib and the second support rib both extend into the annular positioning groove, so that the first support rib and the second support rib play a limiting role on the installation shaft to prevent the installation shaft from sliding in the through hole along the axial direction of the installation shaft, so as to ensure the stability of the connection between the installation shaft and the coupling and the stability of the wind wheel during rotation.

[0012] Optionally, the mounting plate includes a plate body and a motor bracket arranged on the plate body, the plate body is suitable for being detachably connected to the partition, the motor bracket is located on the side of the plate body facing away from the partition, and the fan assembly is detachably connected to the plate body, and the motor assembly is detachably connected to the motor bracket.

[0013] Therefore, the motor bracket is arranged on the plate body to fix the motor assembly to ensure the stability of the motor assembly during operation; by arranging the motor bracket on the plate body, the disassembly and installation of the motor assembly on the mounting plate are facilitated, and the overall stability of the fan assembly is ensured.

[0014] Optionally, the fan assembly further includes a coupling, and the mounting shaft is connected to the motor assembly via the coupling.

[0015] Therefore, the coupling is located between the fan assembly and the motor assembly, and is used to connect the fan assembly and the motor assembly; by setting the coupling, the connection between the fan assembly and the motor assembly can be disconnected by simply disconnecting the connection between the fan assembly or the motor assembly and the coupling, which facilitates the disassembly and installation between the fan assembly and the motor assembly.

[0016] Optionally, the fan assembly includes a volute, a wind wheel and a mounting shaft, the motor assembly includes a motor and a motor shaft connected to the motor, and the mounting shaft is connected to the motor shaft via the coupling.

[0017] Therefore, the wind wheel is fixed on the mounting shaft, and the wind wheel and the mounting shaft are coaxially arranged to ensure the stability of the wind wheel when rotating with the mounting shaft; the mounting shaft and the motor shaft are connected by a coupling, and when the motor shaft rotates, the mounting shaft and the motor shaft have the same rotation speed through the transmission of the coupling, thereby ensuring the rotation speed of the wind wheel and avoiding the reduction of the rotation speed of the wind wheel due to energy loss in the transmission process, thereby ensuring that the air conditioner has sufficient air output.

[0018] Optionally, a first fixing plane is provided at the end of the mounting shaft, a second fixing plane is provided at the end of the motor shaft, and the mounting shaft and the motor shaft are respectively fixed to the coupling at the first fixing plane and the second fixing plane by fasteners.

[0019] Therefore, the first fixed plane is used to ensure the stability of the connection between the installation shaft and the coupling, and the second fixed plane is used to ensure the stability of the connection between the motor shaft and the coupling; and mounting holes are provided at positions on the coupling corresponding to the first fixed plane and the second fixed plane, and the fasteners are abutted against the first fixed plane (second fixed plane) after being screwed into the mounting holes to ensure the stability of the connection between the installation shaft (motor shaft) and the coupling.

[0020] Optionally, a plurality of the fan assemblies are provided, and the wind wheels of the plurality of the fan assemblies are all coaxially arranged with the motor shaft.

[0021] Therefore, multiple fan assemblies are provided, which increases the total air output of the fan assemblies, thereby increasing the air output of the air conditioner and improving the heat exchange effect of the heat exchanger in the air conditioner; in a fan assembly, the wind wheel and the mounting shaft are coaxially arranged, so the wind wheels of multiple fan assemblies are coaxially arranged with the motor shaft, which is equivalent to that the mounting shafts of multiple fan assemblies are coaxially arranged with the motor shaft, thereby saving the internal space of the air conditioner occupied by multiple fan assemblies in the vertical direction.

[0022] Optionally, the motor assembly is disposed between two adjacent fan assemblies, and the mounting shafts of the two fan assemblies are connected to the motor shaft of the motor assembly.

[0023] Therefore, a motor assembly is arranged between two adjacent fan assemblies to reduce the space occupied by the fan assembly inside the air conditioner along the axis of the wind wheel; the installation shaft where the wind wheel of the fan assembly is located is directly connected to the motor shaft of the motor assembly through a coupling or connected to the installation shaft of another fan assembly through a coupling to ensure that all the wind wheels can rotate simultaneously and at the same speed, thereby ensuring uniform air output from the air conditioner.

[0024] In order to solve the above problems, the present invention further provides an air conditioner, comprising the fan assembly described above.

[0025] The advantages of the air conditioner and the above-mentioned fan assembly over the prior art are the same, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of the structure of a fan assembly and a partition in an embodiment of the present invention;

[0027] Figure 2It is a structural schematic diagram of the assembly of the fan assembly and the partition in an embodiment of the present invention;

[0028] Figure 3 A structural schematic diagram of the assembly of the fan assembly and the partition plate from another perspective in an embodiment of the present invention;

[0029] Figure 4 It is a structural schematic diagram of the fan assembly and the partition being separated in an embodiment of the present invention;

[0030] Figure 5 A schematic diagram of the structure of a fan assembly according to an embodiment of the present invention;

[0031] Figure 6 for Figure 5 A partial enlarged view of the middle A;

[0032] Figure 7 is a cross-sectional view of a fan assembly according to an embodiment of the present invention;

[0033] Figure 8 for Figure 7 A partial enlarged view of point B in the middle;

[0034] Fig. 9 It is a schematic structural diagram of the assembly of the wind wheel and the motor assembly in an embodiment of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of installing the shaft in an embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1-fan assembly; 11-volute; 111-upper volute; 1111-first side plate; 1112-first opening; 1113-first supporting rib; 112-lower volute; 1121-second side plate; 1122-second opening; 1123-second supporting rib; 113-through hole; 12-wind wheel; 13-mounting shaft; 131-first fixed plane; 132-annular positioning groove; 2-motor assembly; 21-motor shaft; 211-second fixed plane; 22-motor; 3-mounting plate; 31-plate body; 32-motor bracket; 4-coupling; 5-partition. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0039] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “up”, “down”, “left”, “right”, “high” and “low” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0040] Combination Figure 1 , Figure 2 As shown, the present invention provides a fan assembly, including a mounting plate 3 for detachably connecting to a partition 5, and a fan assembly 1 and a motor assembly 2 arranged on the mounting plate 3, the fan assembly 1 includes a volute 11, a wind wheel 12 and a mounting shaft 13, the wind wheel 12 is fixed on the mounting shaft 13 and is located in the volute 11, and a through hole 113 and a supporting structure are provided at the end of the volute 11, and the supporting structure is arranged around the through hole 113.

[0041] The fan assembly is applied to the air conditioner. This embodiment and the following text are all described by taking the fan assembly applied to the duct air conditioner (i.e., duct air conditioner) as an example. A partition 5 is provided in the shell of the duct air conditioner, and the partition 5 divides the internal space of the duct air conditioner into a heat exchange chamber and a fan chamber. The heat exchanger of the duct air conditioner is arranged in the heat exchange chamber, and the fan assembly is arranged in the fan chamber; the fan assembly 1 and the motor assembly 2 are both arranged on the side of the mounting plate 3 away from the partition 5, and the mounting plate 3 is detachably connected to the partition 5, and the mounting plate 3 and the fan assembly 1 and the motor assembly 2 arranged on the mounting plate 3 can be disassembled and installed as a whole (fan assembly); when the mounting plate 3 is removed from the partition 5, the fan assembly 1 and the motor assembly 2 installed on the mounting plate 3 are also disassembled together and can be taken out from the return air port of the duct air conditioner. Since the partition 5 is provided with an opening for communicating with the air outlet of the volute 11 of the fan assembly 1, when it is necessary to clean the heat exchanger located in the heat exchange chamber of the duct unit, the fan assembly 1, the motor assembly 2 and the mounting plate 3 can be removed from the partition 5 together, and then a water gun can be inserted into the fan chamber and into the heat exchange chamber through the opening on the partition 5 to clean the heat exchanger located in the heat exchange chamber, thereby ensuring that the duct unit delivers fresh, high-quality cooling or heating air.

[0042] The wind wheel 12 of the fan assembly 1 is fixed on the mounting shaft 13 and is located in the volute 11, so that the motor assembly 2 drives the wind wheel 12 through the mounting shaft 13; through holes 113 are provided at both ends of the volute 11 to facilitate the connection between the motor assembly 2 and the mounting shaft 13 of the fan assembly 1; thus, since the through holes 113 are provided at both ends of the volute 11, the structural strength of the volute 11 at the end is relatively low. In this embodiment, a supporting structure is provided at the end of the volute 11, and the supporting structure is provided around the through holes 113 to improve the structural strength of the volute 11 at the end, thereby improving the overall structural strength of the volute 11; and further strengthens the protective effect of the volute 11 on the wind wheel 12 located in the volute 11, thereby ensuring that the wind wheel 12 can work stably.

[0043] Optionally, combined Figure 2 , Figure 5 As shown, the volute 11 includes an upper volute 111 and a lower volute 112, and the upper volute 111 and the lower volute 112 are snap-fitted together via a snap-fit ​​structure.

[0044] The volute 11 can be a left-right structure or a top-bottom structure. This embodiment is described by taking the volute 11 as a top-bottom structure. The volute 11 includes an upper volute 111 and a lower volute 112, and the upper volute 111 and the lower volute 112 are detachably connected by a buckle structure. Specifically, a buckle and / or a slot is provided on the upper volute 111, and a slot and / or a buckle is provided on the lower volute 112. The buckle (slot) on the upper volute 111 and the slot (slot) on the lower volute 112 are connected to each other. Corresponding and snap-fitting; by setting up the snap-fit ​​structure, while ensuring the stability of the connection between the upper volute 111 and the lower volute 112, a detachable connection is formed between the upper volute 111 and the lower volute 112, so as to facilitate the smooth installation of the wind wheel 12 between the upper volute 111 and the lower volute 112; and the upper volute 111 and the lower volute 112 can be installed on the mounting plate 13 as a whole after assembly, which facilitates the overall installation and disassembly of the fan assembly 1.

[0045] Optionally, combined Figure 5-Figure 7 As shown, the support structure includes a first support rib 1113 arranged on both sides of the upper volute 111 and a second support rib 1123 arranged on both sides of the lower volute 112; the first support rib 1113 and the second support rib 1123 surround a through hole 113, and the through hole 113 is coaxially arranged with the mounting shaft 13.

[0046] Both ends of the upper volute 111 in the axial direction of the wind wheel 12 are provided with a first side plate 1111, and both ends of the lower volute 112 in the axial direction of the wind wheel 12 are provided with two second side plates 1121, the first side plate 1111 is provided with a first opening 1112, and the second side plate 1121 is provided with a second opening 1122, and the first opening 1112 and the second opening 1122 located at the same end of the volute 11 form an opening for the installation shaft 13 to extend out of the volute 11, so as to facilitate the installation shaft 13 and the coupling 4 to be connected outside the volute 11; the first support rib 1113 is arranged at the first opening 1112 and is integrally formed with the first side plate 1111, the second support rib 1123 is arranged at the second opening 1122 and is integrally formed with the second side plate 1121, and the first support rib 1113 is away from the end connected to the first side plate 1111 toward the first opening 1112 and the second opening 1122. The first support rib 1113 and the second support rib 1123 are both provided with a plurality of first support ribs 1113 and a plurality of second support ribs 1123, and a through hole 113 is formed by the plurality of first support ribs 1113 and a plurality of second support ribs 1123, and the installation shaft 13 extends out of the volute 11 from the through hole 113. The first support rib 1113 and the second support rib 1123 are provided with a plurality of first support ribs 1113 and a plurality of second support ribs 1123 are provided with a plurality of second support ribs 1123, and the through hole 113 is formed by the plurality of first support ribs 1113 and a plurality of second support ribs 1123, and the installation shaft 13 extends out of the volute 11 from the through hole 113. The first support rib 1113 and the second support rib 1123 are provided to support and position the installation shaft 13, so that the installation shaft 13 and the motor shaft 21 of the motor assembly 2 (described later) are connected and matched at the through hole 113, thereby ensuring that the installation shaft 13 and the motor shaft 21 are coaxially arranged, and ensuring the stability of the wind wheel 12 when rotating with the installation shaft 13.

[0047] Optionally, combined Figure 5-Figure 8 As shown, annular positioning grooves 132 are provided at positions corresponding to the through hole 113 at both ends of the installation shaft 13. The diameter of the through hole 113 is larger than the diameter of the installation shaft 13 at the annular positioning groove 132, and is smaller than the diameter of the direct projection of the installation shaft 13 on a plane perpendicular to the axis of the installation shaft 13.

[0048] After the mounting shaft 13 and the wind wheel 12 are installed in the volute 11, the annular positioning groove 132 corresponds to the position of the through hole 113, that is, the annular positioning groove 132 is connected to the through hole 113; the diameter of the through hole 113 is larger than the diameter of the mounting shaft 13 at the annular positioning groove 132, and is smaller than the diameter of the positive projection of the mounting shaft 13 on the plane perpendicular to the axis of the mounting shaft 13, that is, the first support rib 1113 away from the end connected to the first side plate 1111 and the second support rib 1123 away from the end connected to the second side plate 1121 both extend into the annular positioning groove 132, so that the first support rib 1113 and the second support rib 1123 play a limiting role on the mounting shaft 13, so as to prevent the mounting shaft 13 from sliding in the through hole 113 along the axial direction of the mounting shaft 13, thereby ensuring the stability of the connection between the mounting shaft 13 and the coupling 4 and the stability of the wind wheel 12 during rotation.

[0049] Optionally, combined Figure 1-Figure 4 As shown, the mounting plate 3 includes a plate body 31 and a motor bracket 32 ​​arranged on the plate body 31, the plate body 31 is suitable for being detachably connected to the partition 5, the motor bracket 32 ​​is located on the side of the plate body 31 away from the partition 5, and the fan assembly 1 is detachably connected to the plate body 31, and the motor assembly 2 is detachably connected to the motor bracket 32.

[0050] The motor bracket 32 ​​is arranged on the plate body 31, and is used to fix the motor assembly 2 to ensure the stability of the motor assembly 2 during operation; in this embodiment, the motor bracket 32 ​​and the plate body 31 may be integrally formed, or the motor bracket 32 ​​and the plate body 31 may be detachably connected. By arranging the motor bracket 32 ​​on the plate body 31, it is convenient to disassemble and install the motor assembly 2 on the mounting plate 3, and the stability of the fan assembly as a whole is ensured; and it is avoided that when the motor bracket 32 ​​is arranged on the top cover plate or the bottom plate (not shown in the figure) of the air duct housing, the disassembly and installation of the fan assembly on the cover plate may be hindered.

[0051] Furthermore, the fan assembly 1 is preferably detachably connected to the mounting plate 3, and the motor assembly 2 is detachably connected to the motor bracket 32, so that the fan assembly 1 or the motor assembly 2 can be disassembled after the fan assembly is removed from the partition 5, thereby facilitating the cleaning and maintenance of the fan assembly 1 or the motor assembly 2 separately, so as to avoid affecting other duct machine components when cleaning and maintaining the fan assembly 1 or the motor assembly 2.

[0052] Optionally, combined Figure 1-Figure 5 , Fig. 9 , Fig.10 As shown, the fan assembly also includes a coupling 4 , and the mounting shaft 13 is connected to the motor assembly 2 via the coupling 4 .

[0053] The coupling 4 is located between the fan assembly 1 and the motor assembly 2, and is used to connect the fan assembly 1 and the motor assembly 2; after the fan assembly 1 and the motor assembly 2 are connected through the coupling 4, the wind wheel 12 of the fan assembly 1 is connected to the motor shaft 21 (described later) of the motor assembly 2 through the mounting shaft 13, and the mounting shaft 13 and the motor shaft 21 are coaxially arranged to reduce the energy loss in the transmission process (i.e., the process in which the motor 22 drives the wind wheel 12 through the coupling 4), and to facilitate the motor 22 and the wind wheel 12 to maintain the same speed to ensure the air output of the duct fan; moreover, the arrangement of the coupling 4 makes it possible to disconnect the connection between the fan assembly 1 and the motor assembly 2 by simply disconnecting the connection between the mounting shaft 13 (or the motor shaft 21) and the coupling 4, thereby facilitating the disassembly and installation between the fan assembly 1 and the motor assembly 2.

[0054] Optionally, the motor assembly 2 includes a motor 22 and a motor shaft 21 connected to the motor 22 , and the mounting shaft 13 is connected to the motor shaft 21 via a coupling 4 .

[0055] In the prior art, the motor shaft 21 (i.e., the rotating shaft) of the motor assembly 2 passes through the wind wheel 12 to drive the wind wheel 12 to rotate when the motor 22 is running. However, such a structure is not convenient for the installation and disassembly between the motor 22 and the wind wheel 12, and requires the motor shaft 21 to have a certain length, which increases the difficulty of manufacturing the motor assembly 2. In this embodiment, the wind wheel 12 is fixed on the mounting shaft 13, and the wind wheel 12 and the mounting shaft 13 are coaxially arranged to ensure the stability of the wind wheel 12 when it rotates with the mounting shaft 13. The mounting shaft 13 is connected to the motor shaft 21 through a coupling 4. When the shaft 21 rotates, the coupling 4 is used to transmit the rotational speed of the mounting shaft 13 and the motor shaft 21, thereby ensuring the rotational speed of the wind wheel 12 and avoiding the reduction in the rotational speed of the wind wheel 12 due to energy loss during the transmission process, thereby ensuring that the duct air conditioner has sufficient air output. Compared with the motor 22 in the prior art in which the motor shaft 21 passes through the wind wheel 12, the coupling 4 is provided to connect the mounting shaft 13 and the motor shaft 21, thereby greatly facilitating the installation and disassembly between the motor shaft 21 and the wind wheel 12 and the production of the motor assembly 2.

[0056] Furthermore, the coupling 4 is provided with a plurality of mounting holes. After one end of the mounting shaft 13 (motor shaft 21) is inserted into the coupling 4, the mounting shaft 13 (motor shaft 21) and the coupling 4 are detachably connected at the mounting hole by screwing in fasteners (such as screws) to ensure the stability of the mounting shaft 13 (motor shaft 21) when connected to the coupling 4.

[0057] Optionally, combined Figure 5 , Figure 6 , Fig. 9 , Fig.10As shown, a first fixing plane 131 is provided at the end of the installation shaft 13, and a second fixing plane 211 is provided at the end of the motor shaft 21. The installation shaft 13 and the motor shaft 21 are respectively fixed to the coupling 4 at the first fixing plane 131 and the second fixing plane 211 by fasteners.

[0058] The first fixed plane 131 is used to ensure the stability of the connection between the installation shaft 13 and the coupling 4, and the second fixed plane 211 is used to ensure the stability of the connection between the motor shaft 21 and the coupling 4; specifically, the installation shaft 13 and the motor shaft 21 are both cylindrical to reduce the resistance during rotation, and the end of the installation shaft 13 is provided with a first fixed plane 131, the first fixed plane 131 is parallel to the axis of the installation shaft 13, and the first fixed plane 131 located at one end of the installation shaft 13 is provided with one or more, the coupling 4 is cylindrical, and a first accommodating cavity and a second accommodating cavity are respectively provided at both ends, which are used to install the installation shaft 13 and the motor shaft 21 respectively, and the shape of the first accommodating cavity is adapted to the shape of one end of the installation shaft 13 installed in the first accommodating cavity to ensure installation. After one end of the mounting shaft 13 is installed in the coupling 4, no relative rotation will occur between the mounting shaft 13 and the coupling 4, thereby ensuring that the mounting shaft 13 and the coupling 4 have the same rotation speed; similarly, a second fixed plane 211 is provided at the end of the motor shaft 21, and the second fixed plane 211 is parallel to the axis of the motor shaft 21, and one or more second fixed planes 211 located at one end of the motor shaft 21 are provided, and the shape of the second accommodating cavity of the coupling 4 is adapted to the shape of one end of the motor shaft 21 installed in the second accommodating cavity, so as to ensure that after one end of the mounting shaft 13 is installed in the coupling 4, no relative rotation will occur between the motor shaft 21 and the coupling 4, thereby ensuring that the motor shaft 21 and the coupling 4 have the same rotation speed, so that the motor shaft 21 and the mounting shaft 13 have the same rotation speed.

[0059] Furthermore, the mounting shaft 13 is preferably provided with a first fixing plane 131 at both ends, so that the mounting shaft 13 has a symmetrical structure, thereby facilitating the installation of the mounting shaft 13 in the volute 11. Specifically, when the mounting shaft 13 is provided with the first fixing plane 131 only at one end, it is necessary to ensure that the end with the first fixing plane 131 is set toward the motor assembly 2 when it is installed in the volute 11. This process requires more time for the installer or the machine. When the first fixing plane 131 is provided at both ends of the mounting shaft 13, there is no need to deliberately ensure its installation direction when the mounting shaft 13 is installed in the volute 11, which facilitates the installation of the mounting shaft 13 in the volute 11 and saves assembly time. Similarly, the motor shaft 21 is preferably provided with a second fixing plane 211 at both ends, so that the two ends of the motor shaft 21 extending away from the motor 22 are symmetrical to each other, so that when the motor shaft 21 and the motor 22 are installed on the motor bracket 32, there is no need to pay attention to their installation direction, which facilitates the installation of the motor assembly 2 on the motor bracket 32, saves assembly time, and improves assembly efficiency.

[0060] Furthermore, based on the fact that the coupling 4 is provided with a plurality of mounting holes, the mounting holes on the coupling 4 are preferably arranged at positions corresponding to the first fixed plane 131 and the second fixed plane 211, and the fasteners abut against the first fixed plane 131 (the second fixed plane 211) after being screwed into the mounting holes, so as to ensure the stability of the mounting shaft 13 (motor shaft 21) when connected to the coupling 4; and because one end of the fastener facing the mounting shaft 13 (motor shaft 21) abuts against the first fixed plane 131 (the second fixed plane 211), the fastener and the mounting shaft 13 (motor shaft 21) have a larger contact area, which further improves the stability of the mounting shaft 13 (motor shaft 21) when connected to the coupling 4.

[0061] Optionally, combined Figure 1 As shown, the fan assembly 1 is provided with multiple ones, and the wind wheels 12 of the multiple fan assemblies 1 are all coaxially arranged with the motor shaft 21 .

[0062] In the present embodiment, a plurality of fan assemblies 1 are provided, so that the total air output of the fan assemblies 1 is increased, thereby increasing the air output of the duct machine and improving the heat exchange effect of the heat exchanger in the duct machine; in one fan assembly 1, the wind wheel 12 and the mounting shaft 13 are coaxially arranged, so the wind wheels 12 of the plurality of fan assemblies 1 are coaxially arranged with the motor shaft 21, which is equivalent to that the mounting shafts 13 of the plurality of fan assemblies 1 are coaxially arranged with the motor shaft 21, thereby saving the internal space of the duct machine occupied by the plurality of fan assemblies 1 in the vertical direction.

[0063] Furthermore, the multiple fan assemblies 1 are evenly spaced on the plate body 31 to avoid uneven air output from the duct fan due to the spacing between any two fan assemblies 1 among the multiple fan assemblies 1 being different from the spacing between the other two fan assemblies 1 .

[0064] Furthermore, based on the fact that both ends of the installation shaft 13 are provided with a first fixed plane 131, the installation shafts 13 of two adjacent fan assemblies 1 can be fixedly connected by a coupling 4. In this way, the installation shafts 13 of multiple fan assemblies 1 can rotate synchronously, so that one motor assembly 2 can drive the wind wheels 12 of multiple fan assemblies 1, which not only reduces the production cost of the duct fan, but also ensures that the wind wheels 12 of multiple fan assemblies 1 have the same rotation speed.

[0065] Optionally, combined Figure 1 As shown, the motor assembly 2 is disposed between two adjacent fan assemblies 1 , and the mounting shafts 13 of the two fan assemblies 1 are both connected to the motor shafts 21 of the motor assembly 2 .

[0066] Based on the fact that there are multiple fan assemblies 1, the motor assembly 2 is preferably arranged between two adjacent fan assemblies 1 to reduce the space occupied by the fan assembly inside the duct fan along the axial direction of the wind wheel 12; the installation shaft 13 where the wind wheel 12 of the fan assembly 1 is located is directly connected to the motor shaft 21 of the motor assembly 2 through the coupling 4 or connected to the installation shaft 13 of another fan assembly 1 through the coupling 4 to ensure that all the wind wheels 12 can rotate simultaneously and at the same speed, thereby ensuring uniform air output from the duct fan.

[0067] Furthermore, the motor assembly 2 may be provided with multiple motor assemblies 2, and the motor shafts 21 of the multiple motor assemblies 2 are coaxially arranged with the mounting shaft 13 of the fan assembly 1, and the wind wheels 12 of the multiple fan assemblies 1 are connected to the motor shaft 21 of the motor assembly 2 through the mounting shaft 13 and the coupling 4. By providing multiple motor assemblies 2 to drive multiple fan assemblies 1, the normal operation of the fan assembly is ensured, and the situation in which the speed of the wind wheel 12 decreases due to the difficulty of one motor assembly 2 to drag multiple fan assemblies 1 when multiple fan assemblies 1 are provided is avoided.

[0068] Among multiple fan assemblies 1, if a motor assembly 2 is provided between two adjacent fan assemblies 1, and no motor assembly 2 is provided between the other two adjacent fan assemblies 1, for the two fan assemblies 1 provided adjacent to the motor assembly 2, the two ends of the motor shaft 21 can be connected to the installation shafts 13 of the two fan assemblies 1 through the coupling 4 respectively; and for the two adjacent fan assemblies 1 without the motor assembly 2 provided between the two adjacent fan assemblies 1, the installation shafts 13 of the two adjacent fan assemblies 1 can be connected through the coupling 4; if a motor assembly 2 is provided between any two adjacent fan assemblies 1, the installation shafts 13 of the two adjacent fan assemblies 1 are connected to the two ends of the motor shaft 21 through the coupling 4 respectively. In this way, it is ensured that the wind wheels 12 of the multiple fan assemblies 1 have the same rotation speed, thereby ensuring the stability of the fan assembly during operation.

[0069] The present invention also provides an air conditioner, comprising the above-mentioned fan assembly.

[0070] The air conditioner of this embodiment is provided with a supporting structure at the end of the volute 11, and the supporting structure is provided around the through hole 113 to improve the structural strength of the volute 11 at the end, thereby improving the overall structural strength of the volute 11; and further strengthening the protective effect of the volute 11 on the wind wheel 12 located in the volute 11, thereby ensuring that the wind wheel 12 can work stably.

[0071] Although the present invention is disclosed as above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the scope defined by the claims.

Claims

1. A fan assembly, comprising a mounting plate (3) for detachably connecting to a partition plate (5), and a fan assembly (1) and a motor assembly (2) arranged on the mounting plate (3), characterized in that: The fan assembly (1) comprises a volute (11), a wind wheel (12) and a mounting shaft (13); the wind wheel (12) is fixed on the mounting shaft (13) and is located in the volute (11); and a through hole (113) and a support structure are provided at an end of the volute (11); the support structure is arranged around the through hole (113); The volute (11) comprises an upper volute (111) and a lower volute (112); the support structure comprises a first support rib (1113) arranged on both sides of the upper volute (111) and a second support rib (1123) arranged on both sides of the lower volute (112); both ends of the upper volute (111) located in the axial direction of the wind wheel (12) are provided with a first side plate (1111); both ends of the lower volute (112) located in the axial direction of the wind wheel (12) are provided with a second side plate (1121); the first side plate (1111) is provided with a first opening (1112), a second opening (1122) is provided on the second side plate (1121), the first supporting rib (1113) is arranged at the first opening (1112) and is integrally formed with the first side plate (1111), the second supporting rib (1123) is arranged at the second opening (1122) and is integrally formed with the second side plate (1121), the first supporting rib (1113) and the second supporting rib (1123) surround the through hole (113), and the through hole (113) is coaxially arranged with the mounting shaft (13).

2. The fan assembly according to claim 1, characterized in that: The upper volute (111) and the lower volute (112) are snap-fitted together via a snap-fit ​​structure.

3. The fan assembly according to claim 1, characterized in that: Annular positioning grooves (132) are provided at positions at both ends of the installation shaft (13) corresponding to the through hole (113); the diameter of the through hole (113) is larger than the diameter of the installation shaft (13) at the annular positioning groove (132) and smaller than the diameter of the orthographic projection of the installation shaft (13) on a plane perpendicular to the axis of the installation shaft (13).

4. The fan assembly according to claim 1, characterized in that: The mounting plate (3) comprises a plate body (31) and a motor bracket (32) arranged on the plate body (31); the plate body (31) is suitable for being detachably connected to the partition (5); the motor bracket (32) is located on a side of the plate body (31) facing away from the partition (5); the fan assembly (1) is detachably connected to the plate body (31); and the motor assembly (2) is detachably connected to the motor bracket (32).

5. The fan assembly according to any one of claims 1 to 4, characterized in that: It also includes a coupling (4), and the mounting shaft (13) is connected to the motor assembly (2) via the coupling (4).

6. The fan assembly according to claim 5, characterized in that: The motor assembly (2) comprises a motor (22) and a motor shaft (21) connected to the motor (22); the mounting shaft (13) is connected to the motor shaft (21) via the coupling (4).

7. The fan assembly according to claim 6, characterized in that: A first fixing plane (131) is provided at the end of the installation shaft (13), and a second fixing plane (211) is provided at the end of the motor shaft (21); the installation shaft (13) and the motor shaft (21) are respectively fixed to the coupling (4) at the first fixing plane (131) and the second fixing plane (211) by fasteners.

8. The fan assembly according to any one of claims 6 to 7, characterized in that: The fan assembly (1) is provided in plurality, and the wind wheels (12) of the plurality of fan assemblies (1) are all coaxially arranged with the motor shaft (21).

9. The fan assembly according to claim 8, characterized in that: The motor assembly (2) is arranged between two adjacent fan assemblies (1), and the mounting shafts (13) of the two fan assemblies (1) are both connected to the motor shaft (21) of the motor assembly (2).

10. An air conditioner, characterized in that: The invention comprises a fan assembly as claimed in any one of claims 1 to 9.

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