Low-noise fan coil wind wheel

Abstract

The utility model relates to a low-noise fan coil wind wheel, which belongs to the technical field of fan coil wind wheels and comprises blades, end discs arranged at two ends of the blades, a hub and a shaft sleeve coaxially arranged with the hub, a fixing through hole for a motor shaft to penetrate through is formed in the shaft sleeve in a penetrating manner, and an embedding through hole for the blades to penetrate through is formed in the hub in a penetrating manner. A mounting plate is arranged on the hub, a mounting through hole allowing the shaft sleeve to penetrate is formed in the mounting plate in a penetrating mode, a first damping block is arranged between the mounting plate and the hub, the shaft sleeve is fixedly arranged on the mounting plate, a connecting piece is arranged on the hub, and the hub, the first damping block and the mounting plate are connected through the connecting piece. And through the arrangement of the mounting plate and the first damping block, the fan coil wind wheel has the effect of low noise.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fan -coil fan wheel, especially a low noise fan -coil fan wheel. BACKGROUND

[0002] Fan -coil fan wheel is an important component of fan -coil, which is composed of blades and hub. When fan -coil works, fan -coil fan wheel can rotate under the drive of motor, produce air flow, suck indoor air and exchange heat through coil, and then send out the adjusted air, so as to realize the regulation of indoor temperature and the circulation of air.

[0003] In the prior art, the hub of fan -coil fan wheel is directly connected with the motor shaft through key, pin or other mechanical connecting piece. When the motor drives the fan -coil fan wheel to rotate, the vibration between the motor shaft and the hub will produce certain noise, which affects the user experience. UTILITY MODEL CONTENTS

[0004] In order to reduce the noise when the motor drives the fan -coil fan wheel to rotate, the application provides a low noise fan -coil fan wheel.

[0005] The application provides a low noise fan -coil fan wheel, which adopts the following technical scheme:

[0006] A low noise fan -coil fan wheel, comprising blades, end discs arranged at both ends of the blades, a hub and a shaft sleeve coaxially arranged with the hub, a fixed through hole for the motor shaft to pass through is arranged on the shaft sleeve, an embedded through hole for the blades to pass through is arranged on the hub, an installation plate is arranged on the hub, an installation through hole for the shaft sleeve to pass through is arranged on the installation plate, a first damping block is arranged between the installation plate and the hub, the shaft sleeve is fixed on the installation plate, a connecting piece is arranged on the hub, and the hub, the first damping block and the installation plate are connected through the connecting piece.

[0007] By adopting the above technical scheme, when the motor shaft rotates, the fan -coil fan wheel can be driven to rotate by the hub. By arranging the first damping block, the vibration transmitted from the motor shaft to the hub is effectively reduced, thereby reducing the noise when the motor drives the fan -coil fan wheel to rotate.

[0008] Preferably, a baffle coaxial with the installation through hole is arranged on the installation plate, and the inner wall of the baffle is attached to the outer wall of the shaft sleeve.

[0009] By adopting the above technical scheme, by arranging the baffle, the contact area between the shaft sleeve and the installation plate is improved, thereby improving the connection strength between the shaft sleeve and the installation plate to a certain extent.

[0010] Preferably, the first damping block has a plurality of mounting through holes, and the plurality of first damping blocks are arranged in a circumferential array with the axis of the mounting through hole as the center, and the end of the mounting plate is recessed to form a receiving cavity for accommodating the first damping block.

[0011] By adopting the above technical scheme, the vibration transmitted from the motor shaft to the hub is further reduced through the arrangement of the plurality of first damping blocks, thereby achieving the effect of reducing the noise when the fan coil wheel rotates. Through the arrangement of the receiving cavity, on the one hand, the installation position of the first damping block is facilitated to be determined, and on the other hand, the first damping block is not prone to moving relative to the mounting plate, and the first damping block can be protected to some extent, thereby improving the reliability of the first damping block arranged on the mounting plate.

[0012] Preferably, a damping through hole is provided through the hub.

[0013] By adopting the above technical scheme, through the arrangement of the damping through hole, on the one hand, the production cost of the fan coil wheel is reduced, and on the other hand, the installation of the shaft sleeve is provided with a space, so that the shaft sleeve is not prone to contacting the mounting plate in actual use, thereby reducing the noise when the fan coil wheel is driven to rotate by the motor.

[0014] Preferably, the connecting piece includes a connecting bolt and a connecting block, a connecting threaded hole threadedly matched with the connecting bolt is provided through the connecting block, the connecting block is located on the side of the mounting plate away from the first damping block, a connecting through hole for the connecting bolt to pass through is provided through the hub, and a matched through hole for the connecting bolt to pass through is provided through the first damping block and the mounting plate.

[0015] By adopting the above technical scheme, the connecting bolt is screwed into the connecting threaded hole after sequentially passing through the hub, the first damping block and the mounting plate, thereby completing the assembly. Through the cooperation of the connecting bolt and the connecting block, the mounting plate is fixed on the hub, and the material is simple and easy to operate.

[0016] Preferably, a second damping block is arranged between the connecting block and the mounting plate, and the connecting through hole penetrates the second damping block.

[0017] By adopting the above technical scheme, through the arrangement of the second damping block, the noise between the mounting plate and the connecting block is effectively reduced, and the mounting plate is protected, so that the mounting plate is not prone to being damaged under the pressure of the connecting block.

[0018] Preferably, the first damping block and the second damping block are made of rubber material.

[0019] By adopting the technical scheme, the rubber has the advantages of high elasticity, wear resistance and corrosion resistance, can generate larger deformation under the action of small external force, and can restore to the original state after the external force is removed, the high elasticity enables the rubber to maintain the shape under the conditions of pressure, expansion and vibration, and thus the rubber can play an important role in shock absorption and protection.

[0020] Preferably, a protection pipe is further arranged between the hub and the connecting block, the protection pipe is attached to the inner walls of the first shock-absorbing block and the second shock-absorbing block, and a clearance through hole is provided on the mounting plate to provide clearance for the protection pipe.

[0021] By adopting the technical scheme, the protection pipe effectively provides support for the first shock-absorbing block and the second shock-absorbing block, reduces the compression amount of the first shock-absorbing block and the second shock-absorbing block under the cooperation of the connecting block and the connecting bolt, and thus can ensure the shock-absorbing effect of the first shock-absorbing block and the second shock-absorbing block to a certain extent; and the clearance through hole is arranged to prevent the protection pipe from colliding with the mounting plate and generating noise.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. Since the motor shaft is fixed with the shaft sleeve, the shaft sleeve is fixed on the mounting plate, and the mounting plate is fixed on the hub through the connecting piece, the motor shaft can drive the fan coil wheel to rotate through the hub when the motor shaft rotates, and the vibration transmitted from the motor shaft to the hub is effectively reduced through the arrangement of the first shock-absorbing block, thereby reducing the noise when the fan coil wheel is driven to rotate by the motor;

[0024] 2. The vibration transmitted from the motor shaft to the hub is further reduced through the arrangement of multiple first shock-absorbing blocks, thereby achieving the effect of reducing the noise when the fan coil wheel rotates, and the arrangement of the accommodating cavity facilitates the determination of the installation position of the first shock-absorbing block, prevents the first shock-absorbing block from moving relative to the mounting plate, and protects the first shock-absorbing block to a certain extent, thereby improving the reliability of the first shock-absorbing block arranged on the mounting plate. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a fan coil wheel split structure schematic diagram of the embodiment of the present application.

[0026] Figure 2 is a mounting plate and shock-absorbing block cooperation structure schematic diagram in the embodiment of the present application.

[0027] Figure 3 is a partial exploded view in the embodiment of the present application.

[0028] Figure 4 is a partial cross-sectional view in the embodiment of the present application.

[0029] Explanation of reference signs: 1, blade; 2, end disc; 3, hub; 31, embedded through hole; 32, damping through hole; 4, shaft sleeve; 41, fixing through hole; 42, connecting part; 43, limiting part; 5, mounting plate; 51, mounting through hole; 52, baffle; 53, accommodating cavity; 6, first damping block; 7, connecting bolt; 71, connecting block; 711, connecting threaded hole; 72, connecting through hole; 73, matching through hole; 8, second damping block; 9, protective tube; 91, clearance through hole. DETAILED DESCRIPTION

[0030] The following will be described in detail below with reference to the accompanying drawings Figures 1-4 The utility model will be described in further detail.

[0031] The utility model discloses a low-noise fan coil wind wheel, which refers to Figure 1 , comprising blade 1, end disc 2 arranged at both ends of blade 1, hub 3 and shaft sleeve 4 coaxially arranged with hub 3, blade 1 is fixed with end disc 2, hub 3 is arranged at the middle part of blade 1, embedded through hole 31 for blade 1 to pass through is arranged on hub 3, hub 3 and blade 1 can be fixed by bolt fastening adjustment mode, the stability and firmness of fan coil wind wheel in the rotating process are effectively guaranteed, fixing through hole 41 for motor shaft to pass through is arranged on shaft sleeve 4, and the motor shaft can be fixed with shaft sleeve 4 through key, pin or other mechanical connecting piece.

[0032] Referring to Figure 1 , Figure 2 and Figure 3 , mounting plate 5 is arranged on hub 3, mounting through hole 51 for shaft sleeve 4 to pass through is arranged on mounting plate 5, first damping block 6 is arranged between mounting plate 5 and hub 3, shaft sleeve 4 is fixed on mounting plate 5, and shaft sleeve 4 can be fixed with mounting plate 5 through welding or mechanical connection, so that shaft sleeve 4 comprises integral connecting part 42 and limiting part 43, the outer diameter of connecting part 42 is consistent with the inner diameter of mounting through hole 51, and the outer diameter of limiting part 43 is greater than the inner diameter of mounting through hole 51, the cooperation of connecting part 42 and limiting part 43 makes shaft sleeve 4 mounted on mounting plate 5 not easy to move relative to mounting plate 5, and the reliability of shaft sleeve 4 fixed with hub 3 through mounting plate 5 is improved.

[0033] Referring to Figure 3 and Figure 4 , connecting piece is arranged on hub 3, and hub 3, first damping block 6 and mounting plate 5 are fixed through the connecting piece, since the motor shaft is fixed with shaft sleeve 4, shaft sleeve 4 is fixed on mounting plate 5, and mounting plate 5 is fixed on hub 3 through the connecting piece, when the motor shaft rotates, the fan coil wind wheel can be driven to rotate through hub 3, and through the arrangement of first damping block 6, the vibration transmitted from the motor shaft to hub 3 is effectively reduced, so that the noise when the fan coil wind wheel is driven to rotate through the motor is reduced.

[0034] With reference to Figure 3 and Figure 4 , the connecting piece comprises a connecting bolt 7 and a connecting block 71, a connecting threaded hole 711 threaded matched with the connecting bolt 7 is provided through the connecting block 71, the connecting block 71 is located on the side of the mounting plate 5 away from the first damping block 6, a second damping block 8 is arranged between the connecting block 71 and the mounting plate 5, the shape of the second damping block 8 is matched with the shape of the first damping block 6, a connecting through hole 72 for the connecting bolt 7 to pass through is provided through the hub 3, a matched through hole 73 for the connecting bolt 7 to pass through is provided through the first damping block 6, the mounting plate 5 and the second damping block 8, the connecting bolt 7 is screwed into the connecting threaded hole 711 after passing through the hub 3, the first damping block 6, the mounting plate 5 and the second damping block 8 in sequence, the assembly is completed, the mounting plate 5 is fixed on the hub 3 through the cooperation of the connecting bolt 7 and the connecting block 71, the material is easy to obtain and the operation is convenient, the second damping block 8 is arranged, the noise between the mounting plate 5 and the connecting block 71 is effectively reduced, and the mounting plate 5 is protected, so that the mounting plate 5 is not easy to be damaged under the pressure of the connecting block 71.

[0035] With reference to Figure 2 , Figure 3 and Figure 4 , a protective tube 9 is further arranged between the connecting block 71 and the hub 3, the inner wall of the protective tube 9 is attached to the first damping block 6 and the second damping block 8, a clearance through hole 91 is provided through the mounting plate 5 to provide clearance for the protective tube 9, so that the protective tube 9 is not easy to collide with the mounting plate 5 to produce noise in actual use, the protective tube 9 effectively provides support for the first damping block 6 and the second damping block 8, reduces the compression amount of the first damping block 6 and the second damping block 8 under the cooperation of the connecting block 71 and the connecting bolt 7, so as to ensure the damping effect of the first damping block 6 and the second damping block 8 to a certain extent. A part for filling the clearance through hole 91 is further arranged on the second damping block 8, which further prevents the protective tube 9 from colliding with the mounting plate 5 to produce noise.

[0036] With reference to Figure 2 , Figure 3 and Figure 4 , the first damping block 6 and the second damping block 8 are made of rubber material, rubber has the advantages of high elasticity, wear resistance and corrosion resistance, it can produce large deformation under small external force, and can restore to original state after removing external force, its high elasticity enables rubber to maintain its shape under pressure, stretching and vibration, so it can play an important role in damping and protection.

[0037] With reference to Figure 2, the mounting plate 5 is integrally formed with a baffle 52 coaxial with the mounting through hole 51, the inner wall of the baffle 52 is attached to the outer wall of the connecting portion 42 of the shaft sleeve 4, through the arrangement of the baffle 52, the contact area between the shaft sleeve 4 and the mounting plate 5 is improved, so that the connection strength between the shaft sleeve 4 and the mounting plate 5 can be improved to a certain extent.

[0038] Referring to Figure 2 and Figure 3 , the first damping block 6 has a plurality of first damping blocks 6 arranged in a circular array with the axis of the mounting through hole 51 as the center, through the arrangement of the plurality of first damping blocks 6, the vibration transmitted from the motor shaft to the hub 3 is further reduced, so as to achieve the effect of reducing the noise when the fan coil wheel rotates, in the embodiment of the application, the first damping block 6 has three. The end of the mounting plate 5 is recessed towards the direction of the hub 3 to form a receiving cavity 53 for accommodating the first damping block 6, through the arrangement of the receiving cavity 53, on the one hand, the installation position of the first damping block 6 is facilitated to be determined, on the other hand, the first damping block 6 is not easy to move relative to the mounting plate 5, and the first damping block 6 can be protected to a certain extent, and the reliability of the first damping block 6 arranged on the mounting plate 5 is improved.

[0039] Referring to Figure 3 , in order to save production cost, the mounting plate 5 between the adjacent two damping blocks is bent towards the direction of the baffle 52 to form a mounting arc surface, the hub 3 is provided with a damping through hole 32 coaxial with the mounting plate 5, the mounting plate 5 and the damping through hole 32 are arranged in a staggered manner, through the arrangement of the damping through hole 32, on the one hand, the production cost of the fan coil wheel is reduced, on the other hand, the installation of the shaft sleeve 4 is provided with a space, so that the shaft sleeve 4 is not easy to contact with the mounting plate 5 in actual use, and the noise when the fan coil wheel is driven to rotate by the motor is reduced.

[0040] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape, principle of the application shall be covered within the protection scope of the application.

Claims

1. A low-noise fan coil unit impeller, characterized in that, The device includes blades (1), end plates (2) disposed at both ends of the blades (1), a hub (3), and a bushing (4) coaxially disposed with the hub (3). The bushing (4) has a through hole (41) for the motor shaft to pass through. The hub (3) has a through hole (31) for the blades (1) to pass through. The hub (3) has a mounting plate (5) with a through hole (51) for the bushing (4) to pass through. A first damping block (6) is provided between the mounting plate (5) and the hub (3). The bushing (4) is fixed on the mounting plate (5). The hub (3) has a connector. The hub (3), the first damping block (6), and the mounting plate (5) are connected by the connector.

2. The low-noise fan coil unit impeller according to claim 1, characterized in that, The mounting plate (5) is provided with a baffle (52) coaxial with the mounting through hole (51), and the inner wall of the baffle (52) is in contact with the outer wall of the bushing (4).

3. The low-noise fan coil unit impeller according to claim 1, characterized in that, There are multiple first damping blocks (6), and the multiple first damping blocks (6) are arranged in a circular array with the axis of the mounting through hole (51) as the center. The end of the mounting plate (5) is concave towards the hub (3) to form a receiving cavity (53) for accommodating the first damping blocks (6).

4. The low-noise fan coil unit impeller according to claim 3, characterized in that, The hub (3) has a shock-absorbing through hole (32).

5. The low-noise fan coil unit impeller according to claim 3, characterized in that, The connector includes a connecting bolt (7) and a connecting block (71). The connecting block (71) has a threaded hole (711) that is threaded to the connecting bolt (7). The connecting block (71) is located on the side of the mounting plate (5) away from the first damping block (6). The hub (3) has a through hole (72) for the connecting bolt (7) to pass through. The first damping block (6) and the mounting plate (5) have mating through holes (73) for the connecting bolt (7) to pass through.

6. The low-noise fan coil unit impeller according to claim 5, characterized in that, A second damping block (8) is provided between the connecting block (71) and the mounting plate (5), and the mating passes through the second damping block (8).

7. The low-noise fan coil unit impeller according to claim 6, characterized in that, The first damping block (6) and the second damping block (8) are made of rubber.

8. The low-noise fan coil unit impeller according to claim 6, characterized in that, A protective tube (9) is provided between the hub (3) and the connecting block (71). The protective tube (9) is in contact with the inner wall of the first damping block (6) and the second damping block (8). A clearance through hole (91) is provided on the mounting plate (5) to provide clearance for the protective tube (9).

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