CN214698515U

CN214698515U - Centrifugal fan with built-in motor

Info

Publication number: CN214698515U
Application number: CN202023226996.8U
Authority: CN
Inventors: 曾改革
Original assignee: Wuhan Junpeng Weiye Ventilation Equipment Co ltd
Current assignee: Wuhan Junpeng Weiye Ventilation Equipment Co ltd
Priority date: 2020-12-28
Filing date: 2020-12-28
Publication date: 2021-11-12
Anticipated expiration: 2030-12-28

Abstract

The utility model relates to a built-in centrifugal fan of motor relates to fan equipment technical field, and it includes impeller and centrifugal motor, still includes the support, the rigid coupling has the fan case that is used for placing centrifugal motor and impeller on the support, and the circumference outer wall of the output shaft of centrifugal motor and the pivot of impeller is tightened jointly and is provided with the belt, the rigid coupling has the chassis that is used for placing centrifugal motor on the bottom plate of fan case, be provided with a plurality ofly on the fan case and be used for the clearance the scavenging plate of fan incasement wall dust, be provided with on the scavenging plate with the brush of fan incasement wall butt, be provided with a plurality ofly on the fan case and be used for the drive the scavenging plate along the gliding drive arrangement of fan incasement wall. This application has and avoids debris by the mistake suction fan incasement, can clean the effect of fan incasement wall dust automatically.

Description

Centrifugal fan with built-in motor

Technical Field

The application relates to the technical field of fan equipment, in particular to a centrifugal fan with a built-in motor.

Background

The fan box can be divided into a centrifugal fan box and an axial flow fan box according to different fans, wherein the centrifugal fan is used in the centrifugal fan box, the centrifugal fan is mainly used for making airflow flow along the radial direction after the airflow axially enters an impeller of the fan, and the fan is manufactured according to the principle of centrifugal action; the axial flow fan is used in the axial flow fan box, and airflow enters an impeller of the fan axially and then flows on a cylindrical surface approximately along the axial direction. In various forms of air supply and exhaust devices, a centrifugal fan is widely applied due to the characteristics of compact structure, small size, high air pressure, long air supply distance and the like; the working principle of the centrifugal fan box is that air in fan blades and an impeller rotate together, and centrifugal force is generated due to certain mass of the air; air flows from the inlet to the outlet along the blades, vacuum is formed at the inlet, the air enters the fan under the action of atmospheric pressure, and the air is continuously discharged from the outlet of the fan after energy is obtained in the impeller.

The prior Chinese patent with the patent publication number of CN202001388U provides a low-noise cabinet type centrifugal fan, which comprises a shell, a fan arranged in the shell and a motor arranged outside the shell, and is characterized in that a silencing panel in the shell of the shell and current collectors at two ends of an impeller of the fan can effectively reduce noise generated when the fan works. The casing be equipped with air intake and air outlet, casing and motor are fixed on the base, the base has certain damping function, can effectively reduce the produced vibration noise of fan and motor during operation.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: in the operation process of the centrifugal fan, the air inlet and the air outlet of the centrifugal fan can easily suck some sundry dust and the like into the fan box from the external environment, dust can be adhered to the inner side wall of the fan box, and an operator cannot clean the fan box well.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that operating personnel is not good clearance to the accumulational dust of fan box inner wall adhesion, this application provides a built-in centrifugal fan of motor.

The application provides a built-in centrifugal fan of motor adopts following technical scheme:

the utility model provides a built-in centrifugal fan of motor, includes impeller and centrifugal motor, still includes the support, the rigid coupling has the fan case that is used for placing centrifugal motor and impeller on the support, and the circumference outer wall of the pivot of centrifugal motor and impeller is tightened jointly and is provided with the belt, the rigid coupling has the chassis that is used for placing centrifugal motor on the bottom plate of fan case, be provided with a plurality ofly on the fan case and be used for the clearance the sweep board of fan incasement wall dust, be provided with on the sweep board with the brush of fan incasement wall butt, be provided with a plurality ofly on the fan case and be used for the drive the sweep board along the gliding drive arrangement of fan incasement wall.

Through adopting above-mentioned technical scheme, drive arrangement drive scavenging sheet slides along fan box inner wall, and brush friction fan box inner wall cleans fan box inner wall, has greatly reduced operating personnel and has cleared up the trouble to fan box inner wall, has improved the work efficiency of centrifugal motor and impeller, has guaranteed the clean and tidy of its operational environment.

Optionally, the driving device includes a protruding strip fixedly connected to the outer wall of the fan box, a rotating hole is formed in the protruding strip along the length direction of the protruding strip, a threaded rod is arranged in the rotating hole in a rotating mode, a sliding groove is formed in the inner wall of the fan box along the length direction of the rotating hole, the sliding groove is communicated with the rotating hole, a threaded block is connected to the threaded rod in a threaded mode, a sliding block connected with the cleaning plate is fixedly connected to the threaded block, and the sliding block is connected with the sliding groove in a sliding mode.

Through adopting above-mentioned technical scheme, rotate the threaded rod, the threaded rod drives screw thread piece and slider and removes along the spout, and the sweeping board also follows the slider and moves together, and the sweeping board clears up the fan box inner wall.

Optionally, be provided with on the cleaning plate be used for with the cleaning plate with the stopper that the slider is connected, the cleaning plate is close to the terminal surface of slider seted up with stopper sliding connection's spout, stopper elasticity sets up in the spout, the slider is close to the terminal surface of cleaning plate seted up with the slot of stopper grafting adaptation, be provided with on the stopper and be used for relieving the stopper is right the unlocking structure of cleaning plate locking, be provided with on the slider be used for with the stopper is spacing the locking subassembly in the slot.

Through adopting above-mentioned technical scheme, the stopper is now connected the cleaning plate on the slider, then through the locking subassembly with the stopper locking in the slot to the realization will clean the board locking on the slider, the unblock structure then is convenient for unlock the stopper from the slider, thereby will clean the board and take off from the slider, makes things convenient for operating personnel to clean the board and changes clearance etc..

Optionally, the locking assembly includes a locking rod for limiting the limiting block in the slot, the limiting block is penetrated and provided with a self-locking hole, the slider is provided with a sliding hole aligned with the self-locking hole and communicated with the slot, the locking rod is slidably arranged in the sliding hole, and the locking rod is in plug-in fit with the self-locking hole.

Through adopting above-mentioned technical scheme, wear to establish the self-locking hole on the stopper with the locking pole to the locking pole is with the stopper locking in the slot, and the stopper can't be followed and extracted the stopper and make being connected between stopper and the slider more stable in the slot.

Optionally, the unlocking structure includes a pull rod fixedly connected to the end portion of the limiting block far away from the slot.

Through adopting above-mentioned technical scheme, the pull rod makes things convenient for the staff to pull back the spout with the stopper from the slot, and then the unblock cleans the locking between board and the slider, makes things convenient for the staff to take off cleaning plate.

Optionally, an air guide pipe is fixedly connected to an air outlet of the fan box, and an end portion of the air guide pipe, which is far away from the fan box, is in a flared shape.

Through adopting above-mentioned technical scheme, the guide duct is convenient for centrifugal fan and is derived wind orientation, blows to a place to making wind more easily for centrifugal fan's ventilation effect of taking a breath is better.

Optionally, a handle is arranged at the end part of the pull rod, which is far away from the limiting block, and anti-skid grains are arranged on the handle.

By adopting the technical scheme, the handle is convenient for an operator to pull the pull rod, and the anti-skid lines prevent the operator from skidding.

Optionally, an air inlet of the fan box is provided with an air inlet filter plate for filtering the gas entering the fan box, and an air outlet of the fan box is provided with an air outlet filter plate for filtering the gas going out from the fan box.

By adopting the technical scheme, the air inlet filter plate can prevent sundries given in the environment from being sucked into the fan box by the centrifugal fan, so that the influence of the sundries on the normal rotation of the impeller is avoided, the sundries are prevented from entering the fan box to cover the centrifugal fan, and the damage of the centrifugal fan due to the fact that the centrifugal fan cannot radiate heat in time is prevented; the air outlet filter plate is used for filtering the air out of the fan box, so that the dust content in the air is reduced, and the influence on the environment is reduced as much as possible.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the cleaning plate is connected to the sliding block through the limiting block, and then the limiting block is locked in the slot through the locking assembly, so that the cleaning plate is locked on the sliding block, the limiting block is conveniently unlocked from the sliding block through the unlocking structure, the cleaning plate is taken down from the sliding block, and an operator can conveniently replace and clean the cleaning plate;

2. the locking rod penetrates through a self-locking hole in the limiting block, so that the limiting block is locked in the slot by the locking rod and cannot be pulled out of the slot, and the connection between the limiting block and the sliding block is more stable;

3. the air inlet filter plate can prevent sundries given in the environment from being sucked into the fan box by the centrifugal fan, so that the influence of the sundries on the normal rotation of the impeller is avoided, the sundries are prevented from entering the fan box to cover the centrifugal fan, and the damage of the centrifugal fan due to the fact that the centrifugal fan cannot radiate heat in time is prevented; the air outlet filter plate is used for filtering the air out of the fan box, so that the dust content in the air is reduced, and the influence on the environment is reduced as much as possible.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic structural view of the air guide duct and the air intake filter plate of the embodiment of the present application with the air guide duct and the air intake filter plate hidden;

fig. 3 is a schematic sectional view of line a-a in fig. 2.

Reference numerals: 1. a support; 111. a fan box; 2. a belt; 3. a chassis; 4. an air inlet filter plate; 5. an air outlet filter plate; 6. cleaning the board; 61. a brush; 7. a convex strip; 8. rotating the hole; 9. a threaded rod; 10. a thread block; 11. a slider; 12. a chute; 13. a limiting block; 14. a limiting groove; 15. a slot; 16. a drive motor; 17. an air guide pipe; 18. a pull rod; 19. a handle; 20. a self-locking member; 21. a groove; 22. a locking piece; 23. a bolt; 24. a spring; 25. locking holes; 26. a lock lever; 27. sliding holes; 28. self-locking holes.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses built-in centrifugal fan of motor. Referring to fig. 1 and 2, the centrifugal fan with a built-in motor comprises an impeller and a centrifugal motor, and further comprises a support 1, wherein a fan box 111 for placing the centrifugal motor and the impeller is fixedly connected to the support 1, and a bottom plate of the fan box 111 is fixedly connected with a bottom frame 3 for placing the centrifugal motor; an air guide pipe 17 is fixedly connected to an air outlet of the fan box 111, the end portion, far away from the fan box 111, of the air guide pipe 17 is in a flaring shape, an air inlet filter plate 4 used for filtering gas entering the fan box 111 is arranged at an air inlet of the fan box 111, an air outlet filter plate 5 used for filtering gas going out of the fan box 111 is fixedly connected to an air outlet of the fan box 111, and the air outlet filter plate 5 is fixedly connected between the fan box 111 and the air guide pipe 17.

Referring to fig. 1, offer recess 21 along the direction of transfer of belt 2 on chassis 3, the centrifugal motor can slide along recess 21 length direction on chassis 3, is provided with on the centrifugal motor to be used for the auto-lock piece 20 of auto-lock on recess 21, and this application embodiment auto-lock piece 20 sets up to the lock post, and the lock post is by the nut locking on chassis 3.

The air inlet filter plate 4 can prevent sundries given in the environment from being sucked into the fan box 111 by the centrifugal fan, so that the influence of the sundries on the normal rotation of the impeller is avoided, the sundries are prevented from entering the fan box 111 to cover the centrifugal fan, and the damage of the centrifugal fan due to the fact that the centrifugal fan cannot radiate heat in time is prevented; the air outlet filter plate 5 is used for filtering the air out of the fan box 111, so that the dust content in the air is reduced, and the influence on the environment is reduced as much as possible; the air guide pipe 17 is convenient for the centrifugal fan to guide out the wind in a directional way, so that the wind can be blown to one place more easily; when the belt 2 between the centrifugal motor and the rotating shaft of the impeller is loosened due to long-time rotation, the centrifugal fan can be moved on the groove 21, and the belt 2 is adjusted to be tightened; the lock post fixes centrifugal fan on chassis 3 for centrifugal fan's better operation.

Referring to fig. 1 and 2, the end portion of the air intake filter plate 4 close to the air guide pipe 17 is hinged to the fan box 111, the outer side wall of the end portion of the air intake filter plate 4 far from the air guide pipe 17 is fixedly connected with a bolt 23, the lower end face of the fan box 111 is fixedly connected with a locking piece 22 used for locking the air intake filter plate 4 on the fan box 111, a horizontal piece of the locking piece 22 is hinged to a vertical piece of the locking piece 22, and a locking hole 25 matched with the bolt 23 in an inserted manner is formed in the vertical piece of the locking piece 22.

Referring to fig. 2 and 3, a plurality of cleaning plates 6 for cleaning dust on the inner wall of the fan box 111 are slidably disposed on the fan box 111, two cleaning plates 6 are disposed in the embodiment of the present invention, a brush 61 abutting against the inner wall of the fan box 111 is fixedly connected to the cleaning plates 6, a plurality of driving devices for driving the cleaning plates 6 to slide along the inner wall of the fan box 111 are disposed on the fan box 111, and two driving devices are disposed in the embodiment of the present invention.

The air inlet filter plate 4 is hinged with the fan box 111 and is locked by the bolt 23 and the locking sheet 22 on the fan box 111, when the air inlet filter plate 4 closes the air inlet of the fan box 111, the vertical sheet of the locking sheet 22 is broken into the horizontal direction, then the locking hole 25 on the vertical sheet of the locking sheet 22 is restored to the vertical state and is sleeved on the bolt 23, and at this time, the air inlet filter plate 4 is locked on the fan box 111; the hinged design of the air inlet filter plate 4 and the fan box 111 is more convenient for operators to mount or replace the cleaning plate 6 in the fan box 111 without detaching the air inlet filter plate 4, so that the time is saved, and the air inlet filter plate is simple and convenient; the driving device drives the cleaning plate 6 to slide on the inner wall of the fan box 111, and the friction between the hairbrush 61 and the inner wall of the fan box 111 cleans dust on the inner wall of the fan box 111.

Referring to fig. 2 and 3, the driving device includes a protruding strip 7 fixedly connected to the outer wall of the fan box 111 along the horizontal direction, a rotating hole 8 is formed in the protruding strip 7 along the length direction, a threaded rod 9 is rotatably arranged in the rotating hole 8 of the protruding strip 7, a sliding groove 12 is formed in the box wall of the fan box 111 along the length direction of the rotating hole 8, the sliding groove 12 is communicated with the rotating hole 8, a threaded block 10 is connected to the threaded rod 9 in a threaded manner, a sliding block 11 connected with the cleaning plate 6 is fixedly connected to the threaded block 10, and the sliding block 11 is slidably connected with the sliding groove 12; the convex strips 7 are fixedly connected with a driving motor 16 coaxial with the threaded rod 9, and the length direction of the cleaning plate 6 is vertical to the length direction of the sliding groove 12.

Referring to fig. 2 and 3, a limiting block 13 for connecting the cleaning plate 6 with a sliding block 11 is arranged on the cleaning plate 6, a locking assembly for limiting the limiting block 13 in a slot 15 is arranged on the sliding block 11, an unlocking structure for unlocking the cleaning plate 6 by the limiting block 13 is arranged on the limiting block 13, the unlocking structure comprises a pull rod 18 fixedly connected with the end portion of the limiting block 13 far away from the slot 15, a handle 19 is fixedly connected with the end portion of the pull rod 18 far away from the limiting block 13, and anti-skid patterns are arranged on the handle 19.

Referring to fig. 3, a sliding groove 12 connected with a limiting block 13 in a sliding manner is formed in the end surface of the cleaning plate 6 close to the sliding block 11, the limiting block 13 is elastically arranged in the sliding groove 12, and a slot 15 matched with the limiting block 13 in an inserting manner is formed in the end surface of the sliding block 11 close to the cleaning plate 6; the locking assembly comprises a locking rod 26 for limiting the limiting block 13 in the slot 15, the limiting block 13 is vertically penetrated and provided with a self-locking hole 28, the upper end surface of the sliding block 11 is provided with a sliding hole 27 which is aligned with the self-locking hole 28 and communicated with the slot 15, the locking rod 26 is in sliding connection with the sliding block 11 in the sliding hole 27, and the locking rod 26 is in splicing fit with the self-locking hole 28; a spring 24 is arranged between the limiting block 13 and the bottom of the limiting groove 14, the spring 24 is sleeved outside the pull rod 18, one end of the spring 24 is fixedly connected with the limiting block 13, and the other end of the spring is fixedly connected with the bottom of the limiting groove 14.

The elastic force of the spring 24 enables the limiting block 13 to be ejected into the slot 15 from the sliding groove 12, the situation that a worker needs to manually push the limiting block 13 into the slot 15 is avoided, labor intensity is reduced, meanwhile, the limiting block 13 is prevented from easily sliding out of the slot 15, then an operator inserts the locking rod 26 into the self-locking hole 28 to lock the cleaning plate 6 on the sliding block 11, the driving motor 16 drives the threaded rod 9 to rotate, the threaded block 10 drives the sliding block 11 and the cleaning plate 6 to jointly slide along the length direction of the sliding groove 12, and the hairbrush 61 cleans dust adhered to the inner wall of the fan box 111; when the cleaning plate 6 is to be removed from the sliding block 11 for replacement or cleaning, the self-locking rod is firstly pulled out from the self-locking hole 28, then the limiting block 13 is pulled out from the slot 15 by the pull rod 18, and the locking between the cleaning plate 6 and the sliding block 11 is released.

The implementation principle of the centrifugal fan with the built-in motor in the embodiment of the application is as follows: the driving motor 16 drives the threaded rod 9 to rotate, the threaded block 10 and the sliding block 11 slide along the length direction of the sliding groove 12, the cleaning plate 6 moves along with the sliding block 11, the brush 61 cleans dust on the inner wall of the fan box 111, and the trouble of cleaning the inner wall of the fan box 111 by an operator is reduced; the air inlet filter plate 4 and the air outlet filter plate 5 prevent sundries from being sucked into the air inlet box 111 by the centrifugal fan by mistake, thereby ensuring good working environment of the centrifugal fan and the impeller, improving the working efficiency of the centrifugal fan and the impeller and prolonging the service life of the centrifugal fan and the impeller.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a built-in centrifugal fan of motor, includes impeller and centrifugal motor, its characterized in that: still include support (1), the rigid coupling has fan case (111) that is used for placing centrifugal motor and impeller on support (1), and the circumference outer wall of the output shaft of centrifugal motor and the pivot of impeller is tightened jointly and is provided with belt (2), the rigid coupling has chassis (3) that are used for placing centrifugal motor on the bottom plate of fan case (111), be provided with a plurality of cleanings that are used for on fan case (111) sweeping board (6) of fan case (111) inner wall dust, be provided with on sweeping board (6) with brush (61) of fan case (111) inner wall butt, be provided with a plurality of drives that are used for on fan case (111) sweeping board (6) along the gliding drive arrangement of fan case (111) inner wall.

2. The motor built-in centrifugal fan according to claim 1, characterized in that: drive arrangement includes the rigid coupling and is in sand grip (7) of fan case (111) outer wall, sand grip (7) are inside to have seted up along its length direction and to have rotated hole (8), sand grip (7) in it is provided with threaded rod (9) to rotate hole (8) internal rotation, fan case (111) inner wall is followed spout (12) have been seted up to the length direction who rotates hole (8), spout (12) with rotate hole (8) intercommunication, threaded connection has screw thread piece (10) on threaded rod (9), the rigid coupling have with slider (11) of cleaning board (6) connection on screw thread piece (10), slider (11) with spout (12) sliding connection.

3. The motor built-in centrifugal fan according to claim 2, characterized in that: be provided with on cleaning board (6) be used for with cleaning board (6) with stopper (13) that slider (11) are connected, cleaning board (6) are close to the terminal surface of slider (11) seted up with stopper (13) sliding connection's spout (12), stopper (13) elasticity sets up in spout (12), slider (11) are close to the terminal surface of cleaning board (6) seted up with slot (15) of stopper (13) grafting adaptation, be provided with on stopper (13) and be used for relieving stopper (13) are right the unlocking structure of cleaning board (6) locking, be provided with on slider (11) be used for with stopper (13) are spacing locking subassembly in slot (15).

4. The motor built-in centrifugal fan according to claim 3, characterized in that: the locking assembly comprises a locking rod (26) used for limiting the limiting block (13) in the slot (15), the limiting block (13) penetrates through a self-locking hole (28), a sliding hole (27) which is aligned with the self-locking hole (28) and communicated with the slot (15) is formed in the sliding block (11), the locking rod (26) is arranged in the sliding hole (27) in a sliding mode, and the locking rod (26) is in splicing fit with the self-locking hole (28).

5. The motor built-in centrifugal fan according to claim 4, characterized in that: the unlocking structure comprises a pull rod (18) fixedly connected with the end part of the limiting block (13) far away from the slot (15).

6. The motor built-in centrifugal fan according to claim 1, characterized in that: an air guide pipe (17) is fixedly connected to an air outlet of the fan box (111), and the end part, far away from the fan box (111), of the air guide pipe (17) is in a flaring shape.

7. The motor built-in centrifugal fan according to claim 5, characterized in that: the end part, far away from the limiting block (13), of the pull rod (18) is provided with a handle (19), and anti-skidding grains are arranged on the handle (19).

8. The motor built-in centrifugal fan according to claim 1, characterized in that: the air inlet of the fan box (111) is provided with an air inlet filter plate (4) used for filtering air entering the fan box (111), and the air outlet of the fan box (111) is provided with an air outlet filter plate (5) used for filtering air going out from the fan box (111).