CN217976673U - Box type centrifugal fan - Google Patents
Box type centrifugal fan Download PDFInfo
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- CN217976673U CN217976673U CN202222149165.8U CN202222149165U CN217976673U CN 217976673 U CN217976673 U CN 217976673U CN 202222149165 U CN202222149165 U CN 202222149165U CN 217976673 U CN217976673 U CN 217976673U
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Abstract
The application provides a box centrifugal fan, includes: the front side and the rear side of the box body are respectively provided with an air outlet and an air inlet; the volute is fixed in the box body, an air outlet corresponding to the air outlet is formed in the front side of the volute, and a first air inlet is formed in the right side of the volute; the air collector is arranged in the box body and connected to the periphery of the first air inlet; the first bearing block is fixed in the air collector; the second bearing block is fixed in the box body; the impeller is arranged in the volute; the rotating shaft is fixed in the middle of the impeller, one end of the rotating shaft penetrates through the first air inlet and then extends into the air collector and is installed with the first bearing seat, and the other end of the rotating shaft penetrates through the left side of the volute and is installed with the second bearing seat; an electric motor. This application is through installing wind collector in the week of first air intake along to set up primary shaft bearing in wind collector, can effectively improve the air input of first air intake, still can prevent that primary shaft bearing from directly blockking the gaseous entering of first air intake, so can effectively reduce loss of air flow, improve the operating efficiency of fan.
Description
Technical Field
The application relates to the technical field of centrifugal fans, in particular to a box type centrifugal fan.
Background
The box-type centrifugal fan is compact and beautiful, has regular appearance and is a fan with wider application range. The box-type centrifugal fan generally comprises a box body, a volute, an impeller and a motor, wherein the box body is of a square structure, the volute is fixed in the box body, the impeller is arranged in the volute, a rotating shaft is arranged in the middle of the impeller, two ends of the rotating shaft are respectively arranged on bearing blocks located on the left side wall and the right side wall of the volute, and the motor drives the rotating shaft to rotate through a transmission structure so as to drive the impeller to rotate.
The air inlet of the volute is arranged on the axial direction of the impeller, namely, the air inlet is arranged on the left side, the right side or the left side and the right side of the volute, so that when the impeller rotates to enable airflow to flow into the volute through the air inlet, the airflow can be blocked by the bearing seat, the area of the bearing seat is large, the blocked air is also large, and accordingly the operation efficiency of the fan can be reduced.
SUMMERY OF THE UTILITY MODEL
An object of the application is to provide a box centrifugal fan to solve shortcoming and not enough among the prior art.
The application provides a box centrifugal fan, includes:
the box body is of a square structure, and the front side and the rear side of the box body are respectively provided with an air outlet and an air inlet;
the volute is fixed in the box body, an air outlet corresponding to the air outlet is formed in the front side of the volute, and a first air inlet is formed in the right side of the volute;
the air collector is arranged in the box body and connected to the periphery of the first air inlet;
the first bearing seat is fixed in the air collector;
the second bearing seat is fixed in the box body and is positioned on the left side of the volute;
an impeller disposed within the volute;
the rotating shaft is fixed in the middle of the impeller, one end of the rotating shaft penetrates through the first air inlet and then extends into the air collector, and is installed with the first bearing seat, and the other end of the rotating shaft penetrates through the left side of the volute and is installed with the second bearing seat;
the motor is fixed on the top of the box body and drives the rotating shaft to rotate through a transmission mechanism.
Compared with the prior art, the box-type centrifugal fan of the embodiment of the application has the advantages that the air collector is installed on the periphery of the first air inlet, the first bearing seat is arranged in the air collector, the air inflow of the first air inlet can be effectively improved, the first bearing seat can be prevented from directly blocking gas entering of the first air inlet, so that the air flow loss can be effectively reduced, and the operation efficiency of the fan is greatly improved.
In a preferred or alternative embodiment, the air collector includes a cylindrical housing, a plurality of air inlet holes are circumferentially arranged on an outer circumferential wall of the cylindrical housing, and a support plate for fixing the first bearing seat is provided inside the cylindrical housing.
In a preferred or optional embodiment, the wind collector further comprises flanges, the flanges are arranged on the edges of the openings at the two ends of the cylindrical shell, and the wind collector is connected to the outer wall of the volute and the inner wall of the box body through the flanges respectively.
In a preferred or optional embodiment, the transmission mechanism includes a driving pulley, a driven pulley and a belt, one end of the rotating shaft penetrates out of the box body and is mounted with the driven pulley, the driving pulley is mounted on an output shaft of the motor, and the belt is sleeved on the driving pulley and the driven pulley.
In a preferred or optional embodiment, the box-type centrifugal fan further comprises a slide rail assembly, the motor is fixed on the top of the box body through the slide rail assembly, and the slide rail assembly is used for adjusting the position of the motor in the front-back direction and the left-right direction.
In a preferred or optional embodiment, the slide rail assembly includes two first slide rails and two second slide rails, the two first slide rails are disposed at the top of the box body side by side, each first slide rail is provided with a first sliding groove extending along the left-right direction, two ends of each second slide rail are respectively lapped on the two first slide rails and are slidably connected with the corresponding first sliding grooves, each second slide rail is provided with a second sliding groove extending along the front-back direction, and the bottom of the motor is lapped on the two second slide rails and is slidably connected with the corresponding second sliding grooves.
In a preferred or optional embodiment, a second air inlet is further disposed at the left side of the volute, and the other end of the rotating shaft passes through the second air inlet and is mounted on the second bearing seat.
In a preferred or optional embodiment, a volute support frame is fixed in the box body, the volute support frame is connected to the left side and the right side of the volute, and the second bearing seat is fixed on the volute support frame located on the left side of the volute.
In a preferred or optional embodiment, the box-type centrifugal fan further comprises a bottom bracket, the bottom bracket is fixed at the bottom of the box body, and the bottom bracket is provided with a mounting hole.
For a better understanding and practice, the present application is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic perspective view of a front side of a box-type centrifugal fan in an embodiment of the present application;
FIG. 2 is a schematic perspective view of a rear side of a box-type centrifugal fan in an embodiment of the present application;
FIG. 3 is a schematic view of a disassembled structure of the box-type centrifugal fan in the embodiment of the present application;
fig. 4 is a schematic perspective view of a wind collector in an embodiment of the present application;
FIG. 5 is a schematic view of the motor and the slide rail assembly installed in the embodiment of the present application;
reference numerals:
1. a box body; 101. an air outlet; 102. an air inlet; 103. a volute casing support frame; 11. a rectangular parallelepiped frame; 12. a front panel; 13. a back square frame; 14. a left panel; 15. a right panel; 16. a top panel; 17. a bottom panel; 2. a volute; 21. an air outlet; 22. a first air inlet; 23. a second air inlet; 3. an air collector; 31. a cylindrical housing; 311. an air inlet; 312. a support plate; 32. a flange; 41. a first bearing housing; 42. a second bearing housing; 5. an impeller; 6. a rotating shaft; 7. a motor; 71. a drive pulley; 72. a driven pulley; 73. a belt; 8. a slide rail assembly; 81. a first slide rail; 811. a first chute; 82. a second slide rail; 821. a second chute; 83. a bolt; 9. a bottom bracket.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.
It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1 to 3, an embodiment of the present application provides a box-type centrifugal fan, including: the wind power generation device comprises a box body 1, a volute 2, a wind collector 3, a first bearing seat 41, a second bearing seat 42, an impeller 5, a rotating shaft 6 and a motor 7.
The box body 1 is a square structure, and the front side and the rear side of the box body are respectively provided with an air outlet 101 and an air inlet 102. Specifically, this embodiment box 1 includes cuboid frame 11, front panel 12, rear frame 13, left panel 14, right panel 15, top panel 16 and bottom panel 17, front panel 12 installs in the front side of cuboid frame 11, and air exit 101 runs through to set up on front panel 12, and rear frame 13 installs in the rear side of cuboid frame 11, goes into wind gap 102 and encloses out by the interior edge of rear frame 13, and left panel 14 installs in the left side of cuboid frame 11, and right panel 15 installs in the right side of cuboid frame 11, and top panel 16 installs in the top of cuboid frame 11, and bottom panel 17 installs in the bottom of cuboid frame 11.
The volute 2 is fixed in the box 1, the front side of the volute is provided with an air outlet 21 corresponding to the air outlet 101, the right side of the volute is provided with a first air inlet 22, an air cavity is formed inside the volute 2, and air flow can enter the air cavity from the first air inlet 22 and be discharged from the air outlet 21.
The air collector 3 is arranged in the box body 1 and connected to the periphery of the first air inlet 22, and the air collector 3 is used for increasing the air inflow of the first air inlet 22, so that the running efficiency of the fan is improved.
The first bearing seat 41 is fixed in the wind collector 3, the second bearing seat 42 is fixed in the box 1 and located on the left side of the volute 2, and the impeller 5 is disposed in the volute 2. The rotating shaft 6 is fixed in the middle of the impeller 5, one end of the rotating shaft passes through the first air inlet 22 and then extends into the air collector 3 and is mounted with the first bearing seat 41, the other end of the rotating shaft passes through the left side of the volute 2 and is mounted with the second bearing seat 42, and the motor 7 is fixed on the top of the box body 1 and drives the rotating shaft 6 to rotate through a transmission mechanism.
When the motor 7 is started, the rotating shaft 6 rotates to drive the impeller 5 to rotate, so that the air outside the box body 1 flows through the air inlet 102, the air collector 3, the first air inlet 22, the air outlet 21 and the air outlet 101 in sequence and then is discharged out of the box body 1.
According to the technical scheme, the box-type centrifugal fan provided by the embodiment of the application has the advantages that the air collector 3 is installed on the periphery of the first air inlet 22, the first bearing seat 41 is arranged in the air collector 3, the air inflow of the first air inlet 22 can be effectively improved, the first bearing seat 41 can be prevented from directly blocking the air entering of the first air inlet 22, the air flow loss can be effectively reduced, and the operation efficiency of the fan is greatly improved.
As shown in fig. 4, specifically, the air collector 3 of the present embodiment includes a cylindrical housing 31, a plurality of air inlet holes 311 are arranged on the peripheral wall of the cylindrical housing 31 along the circumferential direction, air can enter the cylindrical housing 31 from the plurality of air inlet holes 311, and flow into the first air inlet 22 through an opening at one end of the cylindrical housing 31, so as to increase the air intake amount of the first air inlet 22, a support plate 312 for fixing the first bearing seat 41 is arranged inside the cylindrical housing 31, the support plate 312 is arranged on the side of the cylindrical housing 31 far away from the first air inlet 22, and the support plate 312 and the first bearing seat 41 are connected by screws.
Preferably, the wind collector 3 further comprises a flange 32, the flange 32 is disposed on the edge of the cylindrical shell 31 with openings at two ends, and the wind collector 3 is connected to the outer wall of the volute 2 and the inner wall of the box 1 through the flange 32, so that the connection of the wind collector 3 is firmer.
The transmission mechanism may have a plurality of arrangements, and specifically, as shown in fig. 1 and 3, in this embodiment, the transmission mechanism includes a driving pulley 71, a driven pulley 72 and a belt 73, one end (in this embodiment, the right end) of the rotating shaft 6 passes through the housing 1 and is mounted with the driven pulley 72, the driving pulley 71 is mounted on the output shaft of the motor 7, and the belt 73 is sleeved on the driving pulley 71 and the driven pulley 72, so that when the motor 7 is started, the driving pulley 71, the belt 73 and the driven pulley 72 can rotate synchronously, so that the rotating shaft 6 rotates to drive the impeller 5.
In order to facilitate the tightness adjustment of the belt 73, so that the driving pulley 71 and the driven pulley 72 are well matched, preferably, the box-type centrifugal fan further includes a slide rail assembly 8, the motor 7 is fixed on the top of the box body 1 through the slide rail assembly 8, and the slide rail assembly 8 is used for adjusting the position of the motor 7 in the front-back direction and the left-right direction, so as to adjust the relative position relationship between the driving pulley 71 and the driven pulley 72 by adjusting the position of the motor 7, thereby changing the tightness of the belt 73.
As shown in fig. 5, specifically, the slide rail assembly 8 includes two first slide rails 81 and two second slide rails 82, the two first slide rails 81 are disposed at the top of the box body 1 side by side, each first slide rail 81 is provided with a first sliding groove 811 extending along the left-right direction, two ends of each second slide rail 82 are respectively lapped on the two first slide rails 81 and are slidably connected with the corresponding first sliding grooves 811, each second slide rail 82 is provided with a second sliding groove 821 extending along the front-rear direction, and the bottom of the motor 7 is lapped on the two second slide rails 82 and is slidably connected with the corresponding second sliding groove 821. With this arrangement, when the two second slide rails 82 are pushed to slide along the first slide groove 811, the motor 7 can be moved in the left-right direction, and when the motor 7 is pushed to slide along the second slide groove 821, the motor 7 can be moved in the front-back direction, thereby achieving the purpose of adjusting the position of the motor 7 in the front-back direction and the left-right direction. After the position is adjusted, the second slide rail 82 and the first sliding groove 811 can be fixed by the bolt 83, and the motor 7 and the second sliding groove 821 can be fixed, so that the final position of the motor 7 can be determined, and the looseness can be prevented.
In order to further increase the air intake, preferably, a second air inlet 23 is further provided at the left side of the scroll casing 2 in this embodiment, and the other end of the rotating shaft 6 passes through the second air inlet 23 and is mounted on the second bearing seat 42.
In order to fix the volute 2 conveniently, in the present embodiment, preferably, a volute support frame 103 is fixed in the casing 1, and the volute support frame 103 is connected to the left and right sides of the volute 2, so that the volute 2 is firmly installed, in the present embodiment, the second bearing seat 42 is fixed on the volute support frame 103 located on the left side of the volute 2.
In order to facilitate the installation of the box-type centrifugal fan and the external structure, preferably, the box-type centrifugal fan further includes a bottom bracket 9, the bottom bracket 9 is fixed to the bottom of the box body 1, and the bottom bracket 9 is provided with a mounting hole, and the mounting hole can be connected with the external structure through a screw.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.
Claims (9)
1. A box centrifugal fan, characterized by, includes:
the box body is of a square structure, and the front side and the rear side of the box body are respectively provided with an air outlet and an air inlet;
the volute is fixed in the box body, an air outlet corresponding to the air outlet is formed in the front side of the volute, and a first air inlet is formed in the right side of the volute;
the air collector is arranged in the box body and connected to the periphery of the first air inlet;
the first bearing seat is fixed in the wind collector;
the second bearing block is fixed in the box body and is positioned on the left side of the volute;
an impeller disposed within the volute;
the rotating shaft is fixed in the middle of the impeller, one end of the rotating shaft penetrates through the first air inlet and then extends into the air collector, and is installed with the first bearing seat, and the other end of the rotating shaft penetrates through the left side of the volute and is installed with the second bearing seat;
the motor is fixed on the top of the box body and drives the rotating shaft to rotate through a transmission mechanism.
2. The box-type centrifugal fan of claim 1, wherein:
the air collector comprises a cylindrical shell, a plurality of air inlet holes are formed in the peripheral wall of the cylindrical shell in the circumferential direction, and a supporting plate used for fixing the first bearing seat is arranged inside the cylindrical shell.
3. The box-type centrifugal fan of claim 2, wherein:
the wind collector also comprises flanges, the flanges are arranged on the edges of openings at two ends of the cylindrical shell, and the wind collector is connected to the outer wall of the volute and the inner wall of the box body through the flanges respectively.
4. The box-type centrifugal fan of claim 1, wherein:
the transmission mechanism comprises a driving belt pulley, a driven belt pulley and a belt, wherein one end of the rotating shaft penetrates out of the box body and is installed with the driven belt pulley, the driving belt pulley is installed on an output shaft of the motor, and the belt is sleeved on the driving belt pulley and the driven belt pulley.
5. The box-type centrifugal fan of claim 1, wherein:
the motor is fixed on the top of the box body through the sliding rail assembly, and the sliding rail assembly is used for adjusting the position of the motor in the front-back direction and the left-right direction.
6. The box-type centrifugal fan of claim 5, wherein:
the slide rail set spare includes two first slide rails and two second slide rails, two first slide rails set up side by side in the top of box, every all be provided with on the first slide rail along the first spout that left right direction extended, every the both ends of second slide rail are taken respectively two on the first slide rail to with the first spout sliding connection that corresponds, every all be provided with the second spout that extends along the fore-and-aft direction on the second slide rail, the bottom of motor is taken two on the second slide rail to with the second spout sliding connection that corresponds.
7. The box-type centrifugal fan of claim 1, wherein:
the left side of the volute is also provided with a second air inlet, and the other end of the rotating shaft penetrates through the second air inlet to be installed with the second bearing seat.
8. The box-type centrifugal fan of claim 1, wherein:
a volute support frame is fixed in the box body, the volute support frame is connected to the left side and the right side of the volute, and the second bearing seat is fixed on the volute support frame located on the left side of the volute.
9. The box-type centrifugal fan of any one of claims 1 to 8, wherein:
the box body is characterized by further comprising a bottom support, the bottom support is fixed to the bottom of the box body, and mounting holes are formed in the bottom support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222149165.8U CN217976673U (en) | 2022-08-15 | 2022-08-15 | Box type centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222149165.8U CN217976673U (en) | 2022-08-15 | 2022-08-15 | Box type centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217976673U true CN217976673U (en) | 2022-12-06 |
Family
ID=84259105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222149165.8U Active CN217976673U (en) | 2022-08-15 | 2022-08-15 | Box type centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217976673U (en) |
-
2022
- 2022-08-15 CN CN202222149165.8U patent/CN217976673U/en active Active
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