Wind wheel assembly and duct type air conditioner

Abstract

The utility model discloses a wind wheel assembly and a duct type air conditioner, the wind wheel assembly comprises a plurality of centrifugal wind wheels, the multiple centrifugal wind wheels are arranged at intervals in the axial direction, and the first sides, in the axial direction, of the centrifugal wind wheels are provided with connecting bases; the first connecting rod is connected to the second side of the centrifugal wind wheel in the axial direction; the driving connecting rod is arranged on the first side of the multiple centrifugal wind wheels and connected with the centrifugal wind wheels located at the ends in the arrangement direction, and the driving connecting rod is used for being in power connection with a power device; in the two adjacent centrifugal wind wheels, the first connecting rod is connected between the second side of the centrifugal wind wheel located on the first side and the connecting base of the centrifugal wind wheel located on the second side. The two adjacent centrifugal wind wheels can be connected in a matched mode through the first connecting rods and the connecting bases, a coupler does not need to be arranged between the two adjacent wind wheels, the number of parts forming the wind wheel assembly can be reduced, and the assembling difficulty of the wind wheel assembly is lowered.

Description

Technical Field

[0001] The present application relates to the field of household appliances, and particularly to a wind wheel assembly and an air duct machine. Background Art

[0002] Currently, the wind wheels in an air duct machine are usually independently connected to the motor shaft or the connecting shaft driven by the motor, resulting in each wind wheel needing to be connected and fixed through a connecting member (such as a screw, etc.), which makes the assembly of the air duct machine complex and the number of components numerous. When there are multiple wind wheels in the air duct machine, it is necessary to connect two adjacent wind wheels arranged in a row through a coupling, resulting in a further increase in the number of components in the air duct machine and increasing the assembly difficulty of the air duct machine. Utility Model Content

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. For this purpose, an object of the present application is to provide a wind wheel assembly, and the wind wheel assembly is convenient for assembly.

[0004] The present application also provides an air duct machine.

[0005] The wind wheel assembly according to the first aspect embodiment of the present application includes: a plurality of centrifugal wind wheels, the plurality of centrifugal wind wheels are arranged at intervals in the axial direction, and a connection seat is provided on the first side of the centrifugal wind wheel in the axial direction; a first connecting rod, the first connecting rod is connected to the second side of the centrifugal wind wheel in the axial direction; a driving connecting rod, the driving connecting rod is arranged on the first side of the plurality of centrifugal wind wheels and is connected to the centrifugal wind wheel located at the end in the arrangement direction, and the driving connecting rod is used for power connection with a power device; wherein, among two adjacent centrifugal wind wheels, the first connecting rod is connected between the second side of the centrifugal wind wheel located on the first side and the connection seat of the centrifugal wind wheel located on the second side.

[0006] According to the wind wheel assembly of the embodiment of the present application, two adjacent centrifugal wind wheels can be connected by the cooperation of the first connecting rod and the connection seat, and there is no need to provide a coupling between two adjacent wind wheels, which can reduce the number of components constituting the wind wheel assembly and reduce the assembly difficulty of the wind wheel assembly. At the same time, by connecting the driving connecting rod to the connection seat of the centrifugal wind wheel located at the end, a connection structure for connecting with the driving device can be formed on one side of the plurality of centrifugal wind wheels, so that the driving device can be arranged on the same side of the plurality of centrifugal wind wheels, which is convenient for connecting the plurality of centrifugal wind wheels in sequence through the cooperation of the first connecting rod and the connection seat.

[0007] According to some embodiments of the present application, a fixing seat is provided at the end of the first connecting rod, and the fixing seat is used for plugging and connecting with the connection seat in a matching manner.

[0008] According to some embodiments of the present application, the connection base is provided with a positioning ring, the fixed base is provided with a positioning loop, the positioning loop is sleeved on the positioning ring, and is in positioning cooperation with the positioning ring.

[0009] According to some embodiments of the present application, one of the positioning ring and the positioning loop is provided with a positioning port, the other of the positioning ring and the positioning loop is provided with a positioning piece, the positioning piece is inserted and cooperated with the positioning port, and is used for circumferentially positioning the positioning ring and the positioning loop.

[0010] According to some embodiments of the present application, a welding rib is provided on the circumferential outer side of the positioning ring, the welding rib extends radially outward from the outer peripheral wall of the positioning ring; the fixed base is provided with a welding portion, and the welding portion is used for welding cooperation with the welding rib.

[0011] According to some embodiments of the present application, the welding portion includes: a welding ring, the welding ring is provided on the circumferential outer side of the positioning loop and surrounds the positioning loop; a welding piece, the welding piece is connected between the positioning loop and the welding ring and is used for connecting with the welding rib.

[0012] According to some embodiments of the present application, the wind wheel assembly further includes a second connecting rod, and the second connecting rod is connected between the first connecting rod and the connection base.

[0013] According to some embodiments of the present application, a plurality of the second connecting rods connected in sequence are provided between two adjacent centrifugal wind wheels arranged adjacent to each other.

[0014] According to some embodiments of the present application, the second connecting rod includes: a rod main body, the rod main body is configured as a hollow rod; a reinforcing rib, the reinforcing rib is provided in the rod main body and extends from the inner wall surface of the rod main body radially toward one side of the central axis of the rod main body.

[0015] According to some embodiments of the present application, the centrifugal wind wheel includes: a base, the connection base is provided on the first side of the base, the first connecting rod is connected to the second side of the base; a plurality of blades, the plurality of blades are provided on the base and are arranged in a circumferential arrangement; a reinforcing ring, the reinforcing ring is connected to one end of the plurality of blades away from the base and forms an air inlet.

[0016] According to some embodiments of the present application, the blades are provided on the first side of the base, and the centrifugal wind wheel forms an air inlet that is open to the first side.

[0017] According to some embodiments of the present application, the wind wheel assembly further includes a third connecting rod, which is arranged on the second side of the centrifugal wind wheel at the end of the plurality of centrifugal wind wheels away from the driving connecting rod in the arrangement direction, and the third connecting rod is coaxially arranged with the centrifugal wind wheel and is provided with a supporting shaft.

[0018] According to some embodiments of the present application, the first connecting rod is integrally formed on the second side of the base of the centrifugal wind wheel.

[0019] According to some embodiments of the present application, the first connecting rod is welded to the connecting seat.

[0020] The air duct machine according to the second aspect embodiment of the present application includes the above-mentioned wind wheel assembly.

[0021] The additional aspects and advantages of the present application will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present application. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present application will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0023] Figure 1 is a schematic structural diagram of a wind wheel assembly according to an embodiment of the present application Figure 1 ;

[0024] Figure 2 is an assembly schematic diagram of a wind wheel assembly according to an embodiment of the present application Figure 1 ;

[0025] Figure 3 is a schematic structural diagram of a driving link according to an embodiment of the present application Figure 1 ;

[0026] Figure 4 is a schematic structural diagram of a driving link according to an embodiment of the present application Figure 2 ;

[0027] Figure 5 is a schematic diagram of the cooperation between a centrifugal wind wheel and a first connecting rod according to an embodiment of the present application;

[0028] Figure 6 is a schematic structural diagram of a fixing seat according to an embodiment of the present application;

[0029] Figure 7 is a schematic structural diagram of a centrifugal wind wheel according to an embodiment of the present application Figure 1 ;

[0030] Figure 8Is the front view of the base according to an embodiment of the present application;

[0031] Figure 9 Is the schematic diagram of the cooperation between the centrifugal impeller and the third connecting rod according to an embodiment of the present application;

[0032] Figure 10 Is the structural schematic of the impeller assembly according to an embodiment of the present application Figure 2 ;

[0033] Figure 11 Is the assembly schematic of the impeller assembly according to an embodiment of the present application Figure 2 ;

[0034] Figure 12 Is the structural schematic of the centrifugal impeller according to an embodiment of the present application Figure 2 ;

[0035] Figure 13 Is the structural schematic of the centrifugal impeller according to an embodiment of the present application Figure 3 ;

[0036] Figure 14 Is the cross-sectional view of the centrifugal impeller according to an embodiment of the present application;

[0037] Figure 15 Is the structural schematic of the second connecting rod according to an embodiment of the present application Figure 1 ;

[0038] Figure 16 Is the structural schematic of the second connecting rod according to an embodiment of the present application Figure 2 ;

[0039] Figure 17 Is the structural schematic of the impeller assembly according to an embodiment of the present application Figure 3 ;

[0040] Figure 18 Is the assembly schematic of the impeller assembly according to an embodiment of the present application Figure 3 ;

[0041] Figure 19 Is the cooperation schematic between the centrifugal impeller and the welding head according to an embodiment of the present application Figure 1 ;

[0042] Figure 20 Is the cooperation schematic between the centrifugal impeller and the welding head according to an embodiment of the present application Figure 2 ;

[0043] Figure 21 Is the schematic diagram of the air duct machine according to an embodiment of the present application.

[0044] Reference signs:

[0045] Air duct machine 1000;

[0046] Wind wheel assembly 100; housing 200; drive device 300; welding head 400;

[0047] Centrifugal wind wheel 1; connecting seat 11; positioning ring 111; positioning port 112; welding rib 113; base 12; welding surface 121; abutting mating surface 122; blade 13; reinforcing ring 14; air inlet 101;

[0048] First connecting rod 2; fixing seat 21; positioning ring 211; positioning piece 212; welding part 22; welding ring 221; welding piece 222;

[0049] Second connecting rod 3; rod main body 31; reinforcing rib 32; connecting wall 33;

[0050] Third connecting rod 4; supporting shaft 41;

[0051] Drive connecting rod 5; core shaft 51; mounting seat 52. Detailed implementation manners

[0052] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and should not be construed as a limitation to the present application.

[0053] Reference will be made below Figures 1 - 21 to describe the wind wheel assembly 100 according to the embodiments of the present application. The wind wheel assembly 100 in the present application can be applied to an air duct machine to realize the air supply function of the air duct machine.

[0054] The wind wheel assembly 100 according to the embodiments of the present application includes a drive connecting rod 5, a first connecting rod 2, and a plurality of centrifugal wind wheels 1.

[0055] As Figure 1 shown, the plurality of centrifugal wind wheels 1 are arranged at intervals in the axial direction, and a connecting seat 11 is provided on the first side of each centrifugal wind wheel 1 in the axial direction. The first connecting rod 2 is connected to the second side of the centrifugal wind wheel 1 in the axial direction to realize the connection of two adjacent centrifugal wind wheels 1 through the first connecting rod 2.

[0056] Combined with Figure 1 and Figure 2, the driving connecting rod 5 is arranged on the first side of the plurality of centrifugal wind wheels 1, and the driving connecting rod 5 is connected to the connecting seat 11 of the centrifugal wind wheel 1 at the end located on the first side in the arrangement direction, and the driving connecting rod 5 is used for power connection with the power device. Among them, the power device can be configured as a driving motor, and the driving motor can be power-connected to the wind wheel assembly 100 through the driving connecting rod 5 to drive the wind wheel assembly 100 to rotate through the driving motor.

[0057] It can be understood that the connecting seat 11 can form a connecting structure on one axial side (i.e., the first side) of the centrifugal wind wheel 1. The first connecting rod 2 and the driving connecting rod 5 can be connected and matched with the connecting seat 11, so as to realize the connection and cooperation of the two centrifugal wind wheels 1 through the cooperation of the connecting seat 11 and the first connecting rod 2, and form a connecting structure for power connection with the driving device 300 on one side of the plurality of centrifugal wind wheels 1 through the cooperation of the driving connecting rod 5 and the connecting seat 11, so as to arrange the driving device 300 on the same side of the plurality of centrifugal wind wheels 1.

[0058] In the description of the present application, the meaning of "a plurality" is two or more.

[0059] Among two adjacent centrifugal wind wheels 1 arranged, the first connecting rod 2 is connected between the second side of the centrifugal wind wheel 1 located on the first side and the connecting seat 11 of the centrifugal wind wheel 1 located on the second side. Further combined with Figure 19 it can be known that one end of the first connecting rod 2 is connected to the surface of the base 12 of the centrifugal wind wheel 1 on the second side, and the other end of the first connecting rod 2 is used for connecting to the connecting seat 11 of another centrifugal wind wheel 1, so as to fixedly connect the two centrifugal wind wheels 1 through the connecting seat 11.

[0060] It should be noted that currently, the wind wheels in the air duct machine are usually independently connected to the motor shaft or the connecting shaft driven by the motor, resulting in that each wind wheel needs to be connected and fixed through a connecting member (such as: screws, etc.), which leads to complex assembly of the air duct machine and a large number of components. When there are multiple wind wheels in the air duct machine, it is necessary to connect two adjacent arranged wind wheels through a coupling, resulting in a further increase in the number of components in the air duct machine and increasing the assembly difficulty of the air duct machine.

[0061] According to the wind wheel assembly 100 of the embodiments of the present application, two adjacent centrifugal wind wheels 1 can be connected and cooperated through a first connecting rod 2 and a connecting seat 11. There is no need to arrange a coupling between two adjacent wind wheels, which can reduce the number of components constituting the wind wheel assembly 100 and lower the assembly difficulty of the wind wheel assembly 100. At the same time, by connecting the driving connecting rod 5 to the connecting seat 11 of the centrifugal wind wheel 1 at the end, a connecting structure for connecting with the driving device 300 can be formed on one side of multiple centrifugal wind wheels 1, so that the driving device 300 can be arranged on the same side of multiple centrifugal wind wheels 1, facilitating the sequential connection of multiple centrifugal wind wheels 1 through the cooperation of the first connecting rod 2 and the connecting seat 11.

[0062] It can be understood that a first connecting rod 2 is provided between any two adjacent centrifugal wind wheels 1. The first connecting rod 2 extends along the axial direction of the centrifugal wind wheel 1, and one end of the first connecting rod 2 is connected to the base 12 of the centrifugal wind wheel 1, and the other end of the first connecting rod 2 is used for connecting and cooperating with the connecting seat 11, so that multiple centrifugal wind wheels 1 can be sequentially connected and cooperated. Among them, the centrifugal wind wheel 1 is a wind wheel structure with axial air inlet and radial air outlet. Arranging multiple centrifugal wind wheels 1 at intervals in the axial direction can further ensure the air inlet effect of the centrifugal wind wheel 1.

[0063] In some embodiments of the present application, the centrifugal wind wheel 1 and the first connecting rod 2 are integrally provided and formed on the second side of the base 12 of the centrifugal wind wheel 1, so as to construct the centrifugal wind wheel 1 into a wind wheel structure with a rod, saving the assembly steps of the first connecting rod 2 and the base 12 of the centrifugal wind wheel 1, and enabling the centrifugal wind wheel 1 with the first connecting rod 2 to be connected and cooperated with the connecting seat 11 of another centrifugal wind wheel 1.

[0064] It can be understood that when the centrifugal wind wheel 1 and the first connecting rod 2 are injection-molded into one body, the first connecting rod 2 can be directly formed on the second side of the base 12 of the centrifugal wind wheel 1 without connecting and fixing the first connecting rod 2 to the centrifugal wind wheel 1. At the same time, it can also adapt to increasing the length of the first connecting rod 2 to meet the distance arrangement requirements between two adjacent centrifugal wind wheels 1.

[0065] In some other embodiments of the present application, the centrifugal wind wheel 1 and the first connecting rod 2 are separately provided, and the base 12 of the centrifugal wind wheel 1 is fixedly connected to one end of the first connecting rod 2 on the first side. When the first connecting rod 2 is an independent component relative to the centrifugal wind wheel 1, it is necessary to connect and fix the first connecting rod 2 and the base 12 to the second side of the centrifugal wind wheel 1, and through the cooperation of the first connecting rod 2 and the connecting seat 11, fix the two centrifugal wind wheels 1 at both ends of the first connecting rod 2.

[0066] Among them, the end of the first connecting rod 2 on the first side can be fixed to the base 12 by welding (such as ultrasonic welding, etc.), which can reduce the number of components in the wind wheel assembly 100 while ensuring the connection reliability between the first connecting rod 2 and the centrifugal wind wheel 1.

[0067] In some embodiments of the present application, the first connecting rod 2 is welded to the connecting seat 11. The connection method is simple and has high reliability, and there is no need to set other connecting components (such as screws, etc.) between the first connecting rod 2 and the connecting seat 11, which can reduce the number of components in the wind wheel assembly 100 while ensuring the connection reliability between the centrifugal wind wheel 1 and the first connecting rod 2. Among them, the centrifugal wind wheel 1 and the first connecting rod 2 can be constructed as plastic parts and are fixedly connected by ultrasonic welding. It should be noted that there is no specific material limitation for the centrifugal wind wheel 1 and the first connecting rod 2 here.

[0068] As Figure 4 shown, in some embodiments of the present application, a fixing seat 21 is provided at the end of the first connecting rod 2. The fixing seat 21 is used for plugging and mating with the connecting seat 11 and connecting them. Thus, the fixing seat 21 can be first plugged and mated with the connecting seat 11, and further the fixing seat 21 can be fixedly connected to the connecting seat 11, and then the first connecting rod 2 is fixed on the first side of the centrifugal wind wheel 1.

[0069] Referring to Figure 4 , the first connecting rod 2 is arranged on the second side of the centrifugal wind wheel 1, and the fixing seat 21 is arranged at the end of the first connecting rod 2 far from the centrifugal wind wheel 1, and the fixing seat 21 is used for connecting and mating with the connecting seat 11 on another centrifugal wind wheel 1 (that is, the centrifugal wind wheel 1 located on the second side of the first connecting rod 2).

[0070] In a further embodiment of the present application, the connecting seat 11 is provided with a positioning ring 111, and the fixing seat 21 is provided with a positioning ring 211. The positioning ring 211 is sleeved on the positioning ring 111, and the positioning ring 211 is in positioning cooperation with the positioning ring 111 to position the fixing seat 21 and the connecting seat 11, which is convenient for further fixedly connecting the fixing seat 21 and the connecting seat 11.

[0071] It can be understood that the fixing seat 21 and the connecting seat 11 are cooperated by plugging, and the positioning between the fixing seat 21 and the connecting seat 11 is realized. After the fixing seat 21 and the connecting seat 11 are in positioning cooperation, the fixing seat 21 and the connecting seat 11 can be welded and fixedly connected by a welding device to improve the assembly accuracy of the fixing seat 21 and the connecting seat 11.

[0072] As Figure 5 and Figure 6As shown, in some embodiments of the present application, one of the positioning ring 111 and the positioning collar 211 is provided with a positioning opening 112, and the other of the positioning ring 111 and the positioning collar 211 is provided with a positioning piece 212. The positioning piece 212 is inserted and mated with the positioning opening 112, so that the positioning ring 111 and the positioning collar 211 can be circumferentially positioned to limit the rotation of the positioning ring 111 relative to the positioning collar 211.

[0073] Among them, when the positioning ring 111 is provided with the positioning piece 212, the positioning collar 211 is provided with the positioning opening 112; when the positioning ring 111 is provided with the positioning opening 112, the positioning collar 211 is provided with the positioning piece 212. Multiple groups of positioning pieces 212 and positioning openings 112 can be provided on the positioning ring 111 and the positioning piece 212 to improve the positioning effect between the positioning collar 211 and the positioning ring 111.

[0074] Referring to Figure 5 , the positioning ring 111 is provided with the positioning opening 112, and the positioning opening 112 is recessed from the axial end of the positioning ring 111 along the axial direction toward the base 12; referring to Figure 6 , the positioning collar 211 is provided with the positioning piece 212, and the positioning piece 212 extends from the inner wall of the positioning collar 211 toward the center along the radial direction. When the positioning collar 211 is sleeved on the positioning ring 111 along the axial direction, the positioning piece 212 is inserted and mated with the positioning opening 112, and the rotation of the positioning collar 211 relative to the positioning ring 111 can be prevented, realizing the radial positioning of the positioning collar 211 and the positioning ring 111.

[0075] Among them, in some embodiments, the positioning opening 112 can be provided through the wall surface of the positioning ring 111 along the thickness direction (which is also the radial direction of the positioning ring 111).

[0076] In some embodiments of the present application, when the positioning ring 111 and the positioning collar 211 are sleeved and mated, the inner peripheral wall of the positioning ring 111 is attached to the outer peripheral wall of the positioning collar 211, so that the positioning ring 111 and the positioning collar 211 can be limited in the radial direction to prevent the positioning ring 111 from shaking relative to the positioning collar 211 and ensure the positioning reliability of the positioning ring 111 and the positioning collar 211.

[0077] In some embodiments of the present application, when the first connecting rod 2 is connected and mated with the connecting seat 11, the end of the first connecting rod 2 can abut against the surface of the base 12 where the connecting seat 11 is provided (i.e., the surface of the base 12 on the first side), so as to realize the positioning of the first connecting rod 2 and the connecting seat 11 in the axial direction, further improving the positioning cooperation accuracy of the first connecting rod 2 and the connecting seat 11 and facilitating the welding of the first connecting rod 2 and the centrifugal air wheel 1 by welding equipment.

[0078] Such as Figure 5 and Figure 6As shown, in some embodiments of the present application, a welding rib 113 is provided on the circumferential outer side of the positioning ring 111, and the welding rib 113 extends outward in the radial direction from the outer peripheral wall of the positioning ring 111; the fixing base 21 is provided with a welding portion 22, and the welding portion 22 is used for welding cooperation with the welding rib 113.

[0079] Among them, the welding rib 113 is arranged on the outer side of the positioning ring 111. When the positioning ring 211 is sleeved on the positioning ring 111, the welding portion 22 cooperates with the welding rib 113, and the welding rib 113 and the welding portion 22 can be welded and connected through a welding device to realize the welding and fixing of the first connecting rod 2 and the connecting seat 11.

[0080] As Figure 6 shown, in a further embodiment of the present application, the welding portion 22 includes: a welding ring 221 and a welding piece 222. The welding ring 221 is arranged on the circumferential outer side of the positioning ring 211, and the welding ring 221 is arranged around the positioning ring 211 in the circumferential direction. The welding piece 222 is connected between the positioning ring 211 and the welding ring 221, and the welding piece 222 is used for connecting with the welding rib 113.

[0081] Combined Figure 5 and Figure 6 , there are multiple welding ribs 113, and the multiple welding ribs 113 are arranged around the circumferential direction of the positioning ring 111. Correspondingly, multiple welding pieces 222 are arranged between the welding ring 221 and the positioning ring 211. When the positioning ring 211 is in positioning cooperation with the positioning ring 111, the welding pieces 222 and the welding ribs 113 are arranged in an alternating manner to ensure the welding effect between the welding pieces 222 and the welding ribs 113.

[0082] Referring to Figure 7 , a slot is formed between any two adjacent welding ribs 113. The slot can be used for the welding piece 222 to be inserted, so as to arrange the welding piece 222 corresponding to the welding rib 113 and ensure the welding effect between the welding rib 113 and the welding portion 22. Among them, when the welding piece 222 is in plug-in cooperation with the slot defined by the welding rib 113, the connecting seat 11 and the fixing base 21 can also be circumferentially positioned.

[0083] Referring to Figure 4 , it should be noted that an installation seat 52 is also provided at one end of the driving connecting rod 5 connected to the centrifugal air wheel 1. The installation seat 52 is used for connecting and fixing with the connecting seat 11 to realize the fixed connection between the driving connecting rod 5 and the centrifugal air wheel 1. Among them, the structure of the installation seat 52 can be the same as that of the fixing base 21, so that the driving connecting rod 5 can be connected and cooperated with any one of the multiple centrifugal air wheels 1, improving the versatility of the centrifugal air wheel 1 and reducing the assembly difficulty of the air wheel assembly 100. The structure of the installation seat 52 will not be described in detail here.

[0084] Referring to Figures 1 - 7Describe the assembly process of the wind wheel assembly 100 according to the embodiments of the present application:

[0085] The centrifugal wind wheel 1 and the first connecting rod 2 are integrally provided. First, the driving connecting rod 5 can be fitted with the connecting seat 11, and the driving connecting rod 5 is fixed on the centrifugal wind wheel 1. Then, after the fixing seat 21 of the first connecting rod 2 is inserted and positioned with the connecting seat 11 of another centrifugal wind wheel 1, the fixing seat 21 is welded and fixed to the centrifugal wind wheel 1 through a welding device. Thus, the connection and fixation between multiple centrifugal wind wheels 1 can be realized through the cooperation of the first connecting rod 2 and the connecting seat 11.

[0086] Combined Figure 19 It can be seen that the welding head of the welding device needs to abut against the base 12 of the centrifugal wind wheel 1 for welding operation. Therefore, it is necessary to first cooperate the centrifugal wind wheel 1 at the first side end with the driving connecting rod 5, and then fixedly install another centrifugal wind wheel 1 on one side of the fixing seat 21 of the first connecting rod 2 in sequence. Thus, interference between the welding head and the centrifugal wind wheel 1 can be prevented.

[0087] Combined Figure 9 and Figure 10 As shown, in some embodiments of the present application, the wind wheel assembly 100 further includes a second connecting rod 3, and the second connecting rod 3 is connected between the first connecting rod 2 and the connecting seat 11.

[0088] It can be understood that when the distance between two adjacent centrifugal wind wheels 1 is the same, by adding a second connecting rod 3 between the first connecting rod 2 and the connecting seat 11, the length dimension of the first connecting rod 2 can be shortened, thereby reducing the welding difficulty. Among them, if the length of the first connecting rod 2 is relatively long, a space for avoiding the first connecting rod 2 needs to be reserved at the welding head.

[0089] When a second connecting rod 3 is provided between the first connecting rod 2 and the connecting seat 11, the second connecting rod 3 can be first connected and cooperated with the first connecting rod 2, and then the second connecting rod 3 is cooperated with the connecting seat 11. The welding head can press against the base 12 from the side of the centrifugal wind wheel 1 where the first connecting rod 2 is provided, and weld the connecting seat 11 and the second connecting rod 3. At this time, the length of the first connecting rod 2 is short, which can reduce the welding difficulty of the welding device.

[0090] In a further embodiment of the present application, a plurality of second connecting rods 3 are sequentially connected between two adjacent centrifugal wind wheels 1, so as to shorten the length dimension of each second connecting rod 3 and reduce the welding difficulty of the second connecting rod 3.

[0091] Among them, among the multiple second connecting rods 3 between two adjacent centrifugal wind wheels 1, the multiple second connecting rods 3 are sequentially connected, and the second connecting rods 3 at both ends are respectively connected and cooperated with the first connecting rod 2 and the connecting seat 11.

[0092] It can be understood that during the assembly process of the wind wheel assembly 100, one second connecting rod 3 can be first connected and cooperated with the first connecting rod 2, then another second connecting rod 3 can be connected and cooperated with the second connecting rod 3 fixed on the first connecting rod 2, and finally another connecting seat 11 of the centrifugal wind wheel 1 can be connected and cooperated with the second connecting rod 3 at the end. It should be noted that the specific assembly method of the wind wheel assembly 100 is not limited to this and can be designed according to actual production requirements.

[0093] As Figure 14 and Figure 15 shown, in some embodiments of the present application, the second connecting rod 3 includes: a rod body 31 and a reinforcing rib 32. The rod body 31 is configured as a hollow rod, and the reinforcing rib 32 is arranged inside the rod body 31, and the reinforcing rib 32 extends from the inner wall surface of the rod body 31 along the radial direction towards one side of the central axis of the rod body 31 to improve the structural strength of the second connecting rod 3 through the reinforcing rib 32.

[0094] Referring to Figure 15 , a connecting wall 33 is provided at one end of the second connecting rod 3. The connecting wall 33 is provided at the end of the second connecting rod 3 that cooperates with the connecting seat 11 to increase the cooperation area between the second connecting rod 3 and the connecting seat 11 and ensure the welding effect between the second connecting rod 3 and the connecting seat 11.

[0095] In some embodiments of the present application, the length dimension of the second connecting rod 3 in the axial direction is C, and it satisfies the relationship: C ≤ 100 mm, so that the distance between the welding end faces formed at both ends of the second connecting rod 3 is not greater than 100 mm to ensure the welding effect at the second connecting rod 3, such as: between the second connecting rod 3 and the second connecting rod 3, between the second connecting rod 3 and the first connecting rod 2, between the second connecting rod 3 and the connecting seat 11, etc.

[0096] As Figure 5 and Figure 11 shown, in some embodiments of the present application, the centrifugal wind wheel 1 includes: a base 12, a reinforcing ring 14, and a plurality of blades 13.

[0097] Referring to Figure 5 , the connecting seat 11 is arranged on the first side of the base 12, the first connecting rod 2 is connected to the second side of the base 12, a plurality of blades 13 are arranged on the base 12 and are circumferentially arranged, the reinforcing ring 14 is connected to one end of the plurality of blades 13 away from the base 12, and an air inlet 101 is formed in the axial direction of the centrifugal wind wheel 1.

[0098] Among them, when the first connecting rod 2 is integrally formed with the centrifugal wind wheel 1, the first connecting rod 2 is formed at the central position of the base 12, and the outer peripheral wall of the first connecting rod 2 is spaced from the blades 13 in the radial direction. Referring to Figure 7When blades 13 and reinforcing rings 14 are provided on both sides of the base 12, air inlets 101 can be formed on both axial sides of the centrifugal wind wheel 1 to achieve two-way air intake.

[0099] like Figure 16 and 17 As shown, in some embodiments of the present application, the blades 13 are arranged on the first side of the base 12, and the centrifugal wind wheel 1 forms an air inlet 101 open to the first side, so that the air inlets 101 of multiple centrifugal wind wheels 1 are all open to the first side. The air inlet 101 of the centrifugal wind wheel 1 is arranged on the side facing the driving device 300, and the air flow entering the air duct machine can be used to cool the driving device 300, thereby improving the heat dissipation effect of the driving device 300.

[0100] Reference Figure 16 The structures and arrangement directions of the multiple centrifugal wind wheels 1 are the same, that is, the air inlets 101 of the multiple centrifugal wind wheels 1 are all open toward the first side, and the driving connecting rod 5 is arranged on the first side of the multiple centrifugal wind wheels 1, so that the driving device 300 (such as: driving motor) can be arranged on the first side (i.e., the air inlet side) of the multiple centrifugal wind wheels 1, and then the space around the driving device 300 can be effectively utilized to intake air and cool the driving device 300.

[0101] It should be noted that the air intake structure of the duct machine can be formed at a location adjacent to the drive device 300 so as to intake air into the space surrounding the drive device 300, so that the airflow can flow through the drive device 300 when flowing toward the centrifugal wind wheel 1, thereby cooling the drive device 300 by increasing the air flow rate at the drive device 300.

[0102] like Figure 20 and Figure 21 As shown, in some embodiments of the present application, a welding surface 121 is provided on the first side of the base 12, and a butt fitting surface 122 is provided on the second side of the base 12. The welding surface 121 is a surface used to cooperate with a welding structure (such as: a fixing seat 21 of the first connecting rod 2), and the butt fitting surface 122 is a surface of the base 12 used to butt fit with the welding head.

[0103] In a further embodiment of the present application, the distance between the welding surface 121 and the abutting mating surface 122 is A, and satisfies the relationship: A≤15 mm, so as to ensure the welding effect of the welding equipment.

[0104] In some embodiments of the present application, the first connecting rod 2 is integrally arranged with the base 12, and the length dimension B of the first connecting rod 2 protruding in the axial direction from the abutting mating surface 122 satisfies the relationship: B≤180mm, that is, the clearance distance of the first connecting rod 2 in the welding head is not greater than 180mm.

[0105] like Figure 1 andFigure 9 As shown in the figure, in some embodiments of the present application, the wind wheel assembly 100 further includes a third connecting rod 4. The third connecting rod 4 is provided on the second side of the centrifugal wind wheel 1 at the end of the plurality of centrifugal wind wheels 1 away from the driving connecting rod 5 in the arrangement direction. The third connecting rod 4 is coaxially arranged with the centrifugal wind wheel 1 and is provided with a support shaft 41. Among them, the support shaft 41 cooperates with a support structure (such as a support bearing) on the housing 200 of the air duct machine to improve the stability of the wind wheel assembly 100 during rotation.

[0106] Refer to Figure 1 and Figure 2 , the driving connecting rod 5 and the third connecting rod 4 are respectively arranged on both sides of the plurality of centrifugal wind wheels 1. The driving connecting rod 5 and the third connecting rod 4 are coaxially arranged. The driving connecting rod 5 is used to be connected to the driving device 300, and the third connecting rod 4 is supported on the housing 200 through the support shaft 41 to improve the stability of the wind wheel assembly 100 during rotation.

[0107] Among them, the support shaft 41 can be constructed as a metal insert and is arranged on the third connecting rod 4 by an integral molding method.

[0108] Such as Figure 2 shown, in some embodiments of the present application, the third connecting rod 4 is integrally provided with the centrifugal wind wheel 1, so that the connection steps between the third connecting rod 4 and the centrifugal wind wheel 1 can be saved, the number of components is reduced, and the assembly efficiency is improved; as Figure 10 shown, in some other embodiments of the present application, the third connecting rod 4 is separately provided from the centrifugal wind wheel 1, that is, the third connecting rod 4 needs to be connected and cooperated with the centrifugal wind wheel 1. For example, the third connecting rod 4 is welded to the centrifugal wind wheel 1.

[0109] It should be noted that the driving connecting rod 5 and the third connecting rod 4 are respectively provided on both sides of the plurality of centrifugal wind wheels 1, and the positions of the driving connecting rod 5 and the third connecting rod 4 can be interchanged. For example, refer to Figure 2 , the driving connecting rod 5 is connected and cooperated with the connecting seat 11 and is arranged on the first side of the plurality of centrifugal wind wheels 1, and the third connecting rod 4 is connected to the base 12 of the centrifugal wind wheel 1 and is located on the second side of the plurality of centrifugal wind wheels 1; refer to Figure 9 , the driving connecting rod 5 is connected to the first connecting rod 2 and is arranged on the second side of the plurality of centrifugal wind wheels 1, and the third connecting rod 4 is connected and cooperated with the connecting seat 11 and is arranged on the first side of the plurality of centrifugal wind wheels 1.

[0110] Such as Figure 3 shown, in some embodiments of the present application, the driving connecting rod 5 is further provided with a core shaft 51, and the core shaft 51

[0111] The air duct machine according to the embodiment of the present application includes the above-mentioned impeller assembly 100. The two adjacent centrifugal impellers 1 can be cooperatively connected through the first connecting rod 2 and the connecting seat 11, eliminating the need to set a coupling between the two adjacent impellers, which can reduce the number of components constituting the impeller assembly 100 and lower the assembly difficulty of the impeller assembly 100.

[0112] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application.

[0113] In the description of the present application, the "first feature" and "second feature" may include one or more of such features.

[0114] In the description of the present application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween.

[0115] In the description of the present application, the first feature being "above", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher horizontal height than the second feature.

[0116] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0117] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A wind wheel assembly, characterized in that: include: A plurality of centrifugal wind wheels, wherein the plurality of centrifugal wind wheels are arranged at intervals along the axial direction, and a connecting seat is provided on a first side of the centrifugal wind wheel in the axial direction; A first connecting rod, wherein the first connecting rod is connected to a second side of the centrifugal wind wheel in the axial direction; A driving connecting rod, which is disposed on a first side of the plurality of centrifugal wind wheels and connected to the centrifugal wind wheels located at the end in the arrangement direction, and is used for power connection with a power device; Among them, in two adjacently arranged centrifugal wind wheels, the first connecting rod is connected between the second side of the centrifugal wind wheel located on the first side and the connecting seat of the centrifugal wind wheel located on the second side.

2. The wind wheel assembly according to claim 1, characterized in that: A fixing seat is provided at the end of the first connecting rod, and the fixing seat is used for plugging and matching with the connecting seat and being connected.

3. The wind wheel assembly according to claim 2, characterized in that: The connecting seat is provided with a positioning ring, and the fixing seat is provided with a positioning ring. The positioning ring is sleeved on the positioning ring and is positioned and matched with the positioning ring.

4. The wind wheel assembly according to claim 3, characterized in that: One of the positioning ring and the positioning ring is provided with a positioning opening, and the other of the positioning ring and the positioning ring is provided with a positioning sheet, which is plug-fitted with the positioning opening and used for circumferentially positioning the positioning ring and the positioning ring.

5. The wind wheel assembly according to claim 3, characterized in that: A welding rib is provided on the circumferential outer side of the positioning ring, and the welding rib extends outward from the outer circumferential wall of the positioning ring in the radial direction; The fixing seat is provided with a welding portion, and the welding portion is used for welding and matching with the welding rib.

6. The wind wheel assembly according to claim 5, characterized in that: The welding part comprises: A welding ring, which is arranged on the circumferential outer side of the positioning ring and surrounds the positioning ring; A welding sheet is connected between the positioning ring and the welding ring and is used to be connected to the welding rib.

7. The wind wheel assembly according to claim 1, characterized in that: It also includes a second connecting rod, which is connected between the first connecting rod and the connecting seat.

8. The wind wheel assembly according to claim 7, characterized in that: A plurality of second connecting rods connected in sequence are provided between two adjacently arranged centrifugal wind wheels.

9. The wind wheel assembly according to claim 7, characterized in that: The second connecting rod comprises: A rod body, wherein the rod body is configured as a hollow rod; The reinforcing rib is arranged in the rod body and extends from the inner wall surface of the rod body along the radial direction to one side of the central axis of the rod body.

10. The wind wheel assembly according to claim 1, characterized in that: The centrifugal wind wheel comprises: A base, wherein the connecting seat is arranged on a first side of the base, and the first connecting rod is connected to a second side of the base; A plurality of blades, wherein the plurality of blades are disposed on the base and arranged in a circumferential manner; A reinforcing ring is connected to one end of the plurality of blades away from the base to form an air inlet.

11. The wind wheel assembly according to claim 10, characterized in that: The blades are arranged on a first side of the base, and the centrifugal wind wheel forms an air inlet open to the first side.

12. The wind wheel assembly according to claim 1, characterized in that: It also includes a third connecting rod, which is arranged on the second side of the centrifugal wind wheel away from one end of the driving connecting rod in the arrangement direction of the multiple centrifugal wind wheels, and the third connecting rod is coaxially arranged with the centrifugal wind wheel and is provided with a supporting shaft.

13. The wind wheel assembly according to claim 1, characterized in that: The first connecting rod is integrally formed on the second side of the base of the centrifugal wind wheel.

14. The wind wheel assembly according to claim 1, characterized in that: The first connecting rod is connected to the connecting seat by welding.

15. A duct machine, characterized in that: Comprising a wind wheel assembly according to any one of claims 1-14.

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