CN210068586U - High-strength noise-reduction centrifugal fan - Google Patents

High-strength noise-reduction centrifugal fan Download PDF

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Publication number
CN210068586U
CN210068586U CN201920688008.XU CN201920688008U CN210068586U CN 210068586 U CN210068586 U CN 210068586U CN 201920688008 U CN201920688008 U CN 201920688008U CN 210068586 U CN210068586 U CN 210068586U
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CN
China
Prior art keywords
centrifugal fan
guide plate
wall
shaped rod
shell
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201920688008.XU
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Chinese (zh)
Inventor
牛德春
吴吉华
祝青华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Weibang Fan Co Ltd
Original Assignee
CHANGSHAN VIBON FAN Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to CN201920688008.XU priority Critical patent/CN210068586U/en
Application granted granted Critical
Publication of CN210068586U publication Critical patent/CN210068586U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a high strength noise reduction centrifugal fan, including shell, buffering noise reduction device, first V-arrangement pole, second V-arrangement pole, spring and centrifugal fan, through installing buffering noise reduction device between shell and the centrifugal fan, first V-arrangement pole, second V-arrangement pole and spring in the buffering noise reduction device, when the centrifugal fan is worked, when producing vibrations, can correspond through first V-arrangement pole, second V-arrangement pole and spring and take place the deformation, so as to can carry out buffering work to the centrifugal fan, and carry out noise reduction work simultaneously, reduce noise pollution; the spiral arrangement of the guide plate, the installation of the air guide plate and the sealing installation of the wrapping pipe can improve the flow guide effect of the centrifugal fan, so that the flow of the flow field of the centrifugal fan is long, the uniformity of the flow field is more uniform, the heat exchange efficiency is improved, and the efficiency of the centrifugal fan is greatly improved.

Description

High-strength noise-reduction centrifugal fan
Technical Field
The utility model relates to a centrifugal fan technical field specifically is a high strength noise reduction centrifugal fan.
Background
The centrifugal fan is a driven fluid machine which increases the pressure of gas and discharges the gas by means of input mechanical energy. Centrifugal fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and draught of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and selecting grains; wind tunnel wind source and air cushion boat inflation and propulsion.
The existing vehicle-mounted air conditioner is limited in installation space, so that the internal installation space of a centrifugal fan of the vehicle-mounted air conditioner is limited, the structure of a shell of the centrifugal fan is single and is limited by the structure of the shell of the centrifugal fan, so that the gap between a heat exchanger and the centrifugal fan is too small, the flow of a flow field between the heat exchanger and the centrifugal fan is short, the uniformity of the flow field is low, the heat exchange efficiency is influenced, the efficiency of the centrifugal fan is greatly reduced, and the operation reliability of the whole unit is reduced; and the vortex in the flow field of the centrifugal fan is more, so that the noise of the centrifugal fan is higher.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem lie in overcoming at the bottom of prior art's the heat exchange efficiency and centrifugal fan's vibrations, defect such as the noise is great, provide a high strength noise reduction centrifugal fan. The high-strength noise-reduction centrifugal fan has the characteristics of high heat exchange efficiency, small vibration and noise and the like.
In order to achieve the above object, the utility model provides a following technical scheme: a high-strength noise-reduction centrifugal fan comprises a shell and a centrifugal fan, wherein the centrifugal fan is arranged in an inner cavity of the shell, a buffering and noise-reduction device is arranged outside the centrifugal fan, a mounting plate is fixedly mounted on the inner wall of the bottom of the shell, a guide plate is arranged in the inner cavity of the shell, the guide plate is sleeved outside the centrifugal fan, a clamping block is fixedly mounted at the bottom end of the guide plate, a clamping groove matched with the clamping block is formed in the top of the mounting plate, the guide plate is connected with the mounting plate through the clamping block, an L-shaped plate is fixedly mounted on the outer wall of the right side of the guide plate, the L-shaped plate is fixedly connected with the outer wall of the top of the mounting plate through a screw, the buffering and noise-reduction device comprises a cylinder, the cylinder is arranged outside the centrifugal fan, a first, the other end of intake pipe passes the drum, extends to in the inner chamber of guide plate, the round pin axle is installed to the junction of first V-arrangement pole, the outer wall at centrifugal fan is installed to the round pin axle, centrifugal fan is through the first V-arrangement pole of round pin axle swing joint, the party that centrifugal fan was kept away from to first V-arrangement pole is provided with the second V-arrangement pole, the junction of second V-arrangement pole is through the inner wall of round pin axle swing joint drum, and installs the blotter between second V-arrangement pole and the drum, install the spring between the inner wall of first V-arrangement pole and second V-arrangement pole.
Preferably, the bottom outer wall of the cylinder is fixedly provided with an installation block, the shell and the installation plate are all provided with threads at vertical positions, a vertical fixing bolt is movably connected in the threads, and the cylinder is fixedly connected with the shell through the vertical fixing bolt.
Preferably, the guide plate is spirally arranged, and the inner wall of the guide plate is annularly provided with the air guide plate which is arranged in a circular arc shape.
Preferably, a wrapping pipe is arranged below the left end of the guide plate, the bottom of the wrapping pipe is fixedly connected with the side wall of the shell, and an air inlet is formed in the side wall of the shell between the wrapping pipe and the right end of the guide plate.
Preferably, the two springs are symmetrically arranged between the first V-shaped rod and the second V-shaped rod.
Preferably, four buffering noise reduction devices are arranged on the outer wall of the centrifugal fan in an annular equal division manner.
Preferably, the inner cavity of the shell is filled with sound-absorbing cotton, and the sound-absorbing cotton is arranged on the outer side of the guide plate.
Preferably, the left side of drum is provided with the fixed plate, the top outer wall of bottom fixed connection mounting panel of fixed plate, just horizontal fixing bolt is installed in the lateral wall trompil of fixed plate, the lateral wall of horizontal fixing bolt's right-hand member fixed connection drum.
Compared with the prior art, the beneficial effects of the utility model are that: the buffering and noise-reducing device is arranged between the shell and the centrifugal fan, and the first V-shaped rod, the second V-shaped rod and the spring in the buffering and noise-reducing device can deform correspondingly through the first V-shaped rod, the second V-shaped rod and the spring when the centrifugal fan works and generates vibration, so that the buffering work can be performed on the centrifugal fan, the noise-reducing work can be performed at the same time, and the noise pollution is reduced; the spiral arrangement of the guide plate, the installation of the air deflector and the sealing installation of the wrapping pipe can improve the flow guide effect of the centrifugal fan, so that the flow field of the centrifugal fan is long, the flow field is more uniform, the heat exchange efficiency is improved, and the efficiency of the centrifugal fan is greatly improved; through the installation of vertical fixing bolt and horizontal fixing bolt, can carry out fixing work to centrifugal fan and drum, it is not only convenient to install to the overall stability of this device can improve, through inhaling the cotton setting of sound, centrifugal fan's outside is established to the guide plate cover.
Drawings
FIG. 1 is an internal structural view of the present invention;
fig. 2 is an enlarged view of a portion a of fig. 1 according to the present invention.
Reference numbers in the figures: 1. a housing; 2. a buffering noise reduction device; 21. a first V-shaped bar; 22. a spring; 23. a pin shaft; 24. a cushion pad; 25. a second V-shaped bar; 26. an air inlet pipe; 27. mounting blocks; 28. a cylinder; 3. a centrifugal fan; 4. a baffle; 5. mounting a plate; 6. an L-shaped plate; 7. a vertical fixing bolt; 8. sound-absorbing cotton; 9. an air deflector; 10. a thread; 11. a fixing plate; 12. a transverse fixing bolt; 13. wrapping a pipe; 14. an air inlet; 15. and (7) clamping blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, the present invention provides a technical solution: a high-strength noise-reduction centrifugal fan comprises a shell 1 and a centrifugal fan 3, wherein the centrifugal fan 3 is arranged in an inner cavity of the shell 1, a buffering and noise-reduction device 2 is arranged outside the centrifugal fan 3, an installation plate 5 is fixedly installed on the inner wall of the bottom of the shell 1, a guide plate 4 is arranged in the inner cavity of the shell 1, the guide plate 4 is spirally arranged, a wind guide plate 9 is annularly installed on the inner wall of the guide plate 4, the wind guide plate 9 is installed in an arc shape, a wrapping pipe 13 is arranged below the left end of the guide plate 4, the bottom of the wrapping pipe 13 is fixedly connected with the side wall of the shell 1, an air inlet 14 is formed in the side wall of the shell 1 between the wrapping pipe 13 and the right end of the guide plate 4, the flow guide effect of the centrifugal fan 3 can be improved through the spiral arrangement of the guide plate 4, the installation of the wind guide plate 9 and the, the flow field is more uniform, the heat exchange efficiency is improved, and the efficiency of the centrifugal fan is greatly improved; the inner cavity of the shell 1 is filled with sound-absorbing cotton 8, the sound-absorbing cotton 8 is arranged on the outer side of the guide plate 4, the guide plate 4 is sleeved outside the centrifugal fan 3 through the sound-absorbing cotton 8, the bottom end of the guide plate 4 is fixedly provided with a clamping block 15, the top of the mounting plate 5 is provided with a clamping groove matched with the clamping block 15, the guide plate 4 is connected with the mounting plate 5 through the clamping block 15, the outer wall of the right side of the guide plate 4 is fixedly provided with an L-shaped plate 6, the L-shaped plate 6 is fixedly connected with the outer wall of the top of the mounting plate 5 through a screw, four buffering noise reduction devices 2 are arranged on the outer wall of the centrifugal fan 3 in an annular equal division manner, each buffering noise reduction device 2 comprises a cylinder 28, the cylinder 28 is arranged outside the centrifugal fan 3, the outer wall of the centrifugal fan 3 is provided with a first V-, the connecting part of the first V-shaped rod 21 is provided with a pin shaft 23, the pin shaft 23 is arranged on the outer wall of the centrifugal fan 3, the centrifugal fan 3 is movably connected with the first V-shaped rod 21 through the pin shaft 23, one side of the first V-shaped rod 21, which is far away from the centrifugal fan 3, is provided with a second V-shaped rod 25, the connecting part of the second V-shaped rod 25 is movably connected with the inner wall of a cylinder 28 through the pin shaft 23, a buffer cushion 24 is arranged between the second V-shaped rod 25 and the cylinder 28, a spring 22 is arranged between the inner walls of the first V-shaped rod 21 and the second V-shaped rod 25, the two springs 22 are symmetrically arranged between the first V-shaped rod 21 and the second V-shaped rod 25, the buffer and noise reduction device 2 is arranged between the shell 1 and the centrifugal fan 3, the first V-shaped rod 21, the second V-shaped rod 25 and the spring 22 in the buffer and noise reduction device 2, when the centrifugal fan 3 works, when vibration is generated, the first V-shaped rod 21, the second V, therefore, the centrifugal fan 3 can be buffered, and noise reduction work can be carried out at the same time, so that noise pollution is reduced; the bottom outer wall fixed mounting of drum 28 has installation piece 27, shell 1 and mounting panel 5 all seted up screw thread 10 in vertical position, swing joint has vertical fixing bolt 7 in the screw thread 10, drum 28 is through vertical fixing bolt 7 fixed connection shell 1, the left of drum 28 is provided with fixed plate 11, the top outer wall of the bottom fixed connection mounting panel 5 of fixed plate 11, and horizontal fixing bolt 12 is installed in the lateral wall trompil of fixed plate 11, the lateral wall of the right-hand member fixed connection drum 28 of horizontal fixing bolt 12, installation through vertical fixing bolt 7 and horizontal fixing bolt 12, can carry out fixed work to centrifugal fan 3 and drum 28, it is convenient not only to install, and the overall stability of this device can improve.
The working principle of the utility model is that firstly, the vertical fixing bolt 7 and the horizontal fixing bolt 12 are screwed to the outer wall of the cylinder 28 and the guide plate 4, the L-shaped plate 6 is fixedly arranged on the outer wall of the right side of the guide plate 4, the L-shaped plate 6 is fixedly connected with the outer wall of the top part of the mounting plate 5 through screws, the centrifugal fan 3 can be correspondingly fixed with the cylinder 28, then the centrifugal fan 3 is turned on through an external power supply and a switch, the guide plate 4 is arranged in the inner cavity of the shell 1 when the centrifugal fan 3 works, the guide plate 4 is spirally arranged, the air deflector 9 is annularly arranged on the inner wall of the guide plate 4, the air deflector 9 is installed in an arc shape, the packing tube 13 is arranged below the left end of the guide plate 4, the bottom of the packing tube 13 is fixedly connected with the side wall of the shell 1, the air inlet 14 is arranged on the side, the spiral arrangement of the guide plate 4, the installation of the air deflector 9 and the sealing installation of the wrapping pipe 13 can improve the flow guide effect of the centrifugal fan 3, so that the flow path of the flow field of the centrifugal fan 3 is long and the flow field is more uniform; when the centrifugal fan 3 shakes during operation, the first V-shaped rod 21, the second V-shaped rod 25 and the spring 22 in the buffering and noise reduction device 2 can be correspondingly deformed in the cylinder 28 through the first V-shaped rod 21, the second V-shaped rod 25 and the spring 22, so that the centrifugal fan 3 can be buffered, noise reduction operation is performed simultaneously, and noise pollution is reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a high strength noise reduction centrifugal fan, includes shell (1) and centrifugal fan (3), its characterized in that: the centrifugal fan (3) is arranged in an inner cavity of the shell (1), the outer part of the centrifugal fan (3) is provided with a buffering noise reduction device (2), the bottom inner wall of the shell (1) is fixedly provided with a mounting plate (5), a guide plate (4) is arranged in the inner cavity of the shell (1), the guide plate (4) is sleeved outside the centrifugal fan (3), a fixture block (15) is fixedly arranged at the bottom end of the guide plate (4), a clamping groove matched with the fixture block (15) is formed in the top of the mounting plate (5), the guide plate (4) is connected with the mounting plate (5) through the fixture block (15), an L-shaped plate (6) is fixedly arranged on the outer wall of the right side of the guide plate (4), the L-shaped plate (6) is fixedly connected with the outer wall of the top of the mounting plate (5) through a screw, and the buffering noise, the cylinder (28) is arranged outside the centrifugal fan (3), a first V-shaped rod (21) is arranged on the outer wall of the centrifugal fan (3), an air inlet pipe (26) is installed at the input end of the centrifugal fan (3), the other end of the air inlet pipe (26) penetrates through the cylinder (28) and extends into the inner cavity of the guide plate (4), a pin shaft (23) is installed at the joint of the first V-shaped rod (21), the pin shaft (23) is installed on the outer wall of the centrifugal fan (3), the centrifugal fan (3) is movably connected with the first V-shaped rod (21) through the pin shaft (23), a second V-shaped rod (25) is arranged on one side, far away from the centrifugal fan (3), of the first V-shaped rod (21), the joint of the second V-shaped rod (25) is movably connected with the inner wall of the cylinder (28) through the pin shaft (23), and a cushion pad (24) is installed between the second V-shaped rod (25) and the cylinder (, and a spring (22) is arranged between the inner walls of the first V-shaped rod (21) and the second V-shaped rod (25).
2. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the bottom outer wall fixed mounting of drum (28) has installation piece (27), screw thread (10) have all been seted up in vertical position in installation piece (27), shell (1) and mounting panel (5), swing joint has vertical fixing bolt (7) in screw thread (10), drum (28) are through vertical fixing bolt (7) fixed connection shell (1).
3. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the guide plate (4) is spirally arranged, an air deflector (9) is annularly arranged on the inner wall of the guide plate (4), and the air deflector (9) is installed in a circular arc shape.
4. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the utility model discloses a guide plate, including guide plate (4), be provided with package pipe (13) below the left end of guide plate (4), the lateral wall of the bottom fixed connection shell (1) of package pipe (13), air inlet (14) have been seted up between the right-hand member of package pipe (13) and guide plate (4) to the lateral wall of shell (1).
5. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the two springs (22) are symmetrically arranged between the first V-shaped rod (21) and the second V-shaped rod (25).
6. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: four buffering noise reduction devices (2) are arranged on the outer wall of the centrifugal fan (3) in an annular equal division mode.
7. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the inner cavity of the shell (1) is filled with sound-absorbing cotton (8), and the sound-absorbing cotton (8) is arranged on the outer side of the guide plate (4).
8. The high-strength noise-reduction centrifugal fan according to claim 1, wherein: the left of drum (28) is provided with fixed plate (11), the top outer wall of the bottom fixed connection mounting panel (5) of fixed plate (11), just horizontal fixing bolt (12) is installed in the lateral wall trompil of fixed plate (11), the lateral wall of the right-hand member fixed connection drum (28) of horizontal fixing bolt (12).
CN201920688008.XU 2019-05-15 2019-05-15 High-strength noise-reduction centrifugal fan Expired - Fee Related CN210068586U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920688008.XU CN210068586U (en) 2019-05-15 2019-05-15 High-strength noise-reduction centrifugal fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920688008.XU CN210068586U (en) 2019-05-15 2019-05-15 High-strength noise-reduction centrifugal fan

Publications (1)

Publication Number Publication Date
CN210068586U true CN210068586U (en) 2020-02-14

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ID=69451954

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920688008.XU Expired - Fee Related CN210068586U (en) 2019-05-15 2019-05-15 High-strength noise-reduction centrifugal fan

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111924085A (en) * 2020-08-17 2020-11-13 上海外高桥造船有限公司 Special return air sound-deadening box
CN115596685A (en) * 2022-12-16 2023-01-13 瑞纳智能设备股份有限公司(Cn) Centrifugal compressor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111924085A (en) * 2020-08-17 2020-11-13 上海外高桥造船有限公司 Special return air sound-deadening box
CN111924085B (en) * 2020-08-17 2022-08-16 上海外高桥造船有限公司 Special return air sound-deadening box
CN115596685A (en) * 2022-12-16 2023-01-13 瑞纳智能设备股份有限公司(Cn) Centrifugal compressor
CN115596685B (en) * 2022-12-16 2023-03-14 瑞纳智能设备股份有限公司 Centrifugal compressor

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GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 324200 Changshan Industrial Park, Changshan County, Zhejiang, Quzhou

Patentee after: Zhejiang Weibang fan Co., Ltd

Address before: 324200 Changshan Industrial Park, Changshan County, Zhejiang, Quzhou

Patentee before: CHANGSHAN VIBON FAN Co.,Ltd.

CP01 Change in the name or title of a patent holder
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20200214

Termination date: 20210515

CF01 Termination of patent right due to non-payment of annual fee