CN113107899B

CN113107899B - Cooling fan for high-power variable frequency motor

Info

Publication number: CN113107899B
Application number: CN202110658635.0A
Authority: CN
Inventors: 王枨
Original assignee: Nantong Antai Fan Co ltd
Current assignee: Nantong Antai Fan Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-11-02
Anticipated expiration: 2041-06-15
Also published as: CN113107899A

Abstract

The invention relates to the technical field of variable frequency motors, and discloses a cooling fan for a high-power variable frequency motor, which comprises a protective shell, an installation component and a fixing component, wherein a support rod is fixedly installed in the protective shell, a rotor is fixedly installed at one end, away from the protective shell, of the support rod, a rotating shaft is fixedly installed at the rear side of the rotor, fan blades are inserted into the surface of the rotating shaft, the fixing component comprises a lifting plate, a compression spring is fixedly installed at the bottom end of the lifting plate, a top plate is fixedly installed at the top end of the lifting plate, a clamping plate is fixedly installed at the left side of the top plate, a fixing plate is fixedly installed in the rotating shaft, an insert block is fixedly installed at the right side of the fixing plate, the fan blades and an insert plate are inserted into the rotating shaft and are fixed through the fixing component and the installation component, so that the purpose of convenient installation is achieved, the fan blades can be pulled out only through pressing and rotating when being disassembled, the effect of convenient dismantlement is reached, the clean flabellum of being convenient for.

Description

Cooling fan for high-power variable frequency motor

Technical Field

The invention relates to the technical field of variable frequency motors, in particular to a cooling fan for a high-power variable frequency motor.

Background

With the rapid development of power electronic technology and novel semiconductor devices, the alternating current speed regulation technology is continuously improved, a gradually improved frequency converter is widely applied to an alternating current motor with good output waveform and excellent cost performance, and the variable frequency motor is a motor with temperature rise not exceeding a motor calibration allowable value when in use.

Inverter motor usually can install cooling blower in one side in inside, be used for cooling down inverter motor, utilize cooling blower to solve the radiating problem of motor, avoid the motor high temperature to lead to damaging, because the motor is suitable for the place and usually is dust or pollutes heavier place, and its inside greasy dirt that also has, lead to the fan in the use, the surface of fan can adhere to the filth of considerable quality, lead to the fan radiating efficiency to descend, and the fan generally all is an organic whole and installs on the motor inner shell, it is very inconvenient to wash with the water.

Aiming at the defects of the prior art, the invention provides the cooling fan for the high-power variable frequency motor, which has the advantage of convenience in cleaning the fan blades by quickly and conveniently installing and disassembling the fan blades, and solves the problem of difficult cleaning of the fan blades.

Disclosure of Invention

In order to achieve the purpose of conveniently cleaning the fan blades, the invention provides the following technical scheme: a cooling fan for a high-power variable frequency motor comprises a protective shell, an installation assembly and a fixing assembly, wherein a supporting rod is fixedly installed inside the protective shell, a rotor is fixedly installed at one end, away from the protective shell, of the supporting rod, a rotating shaft is fixedly installed on the rear side of the rotor, fan blades are inserted into the surface of the rotating shaft, a motor is fixedly installed on the surface of the outer side of the protective shell, the installation assembly is fixedly installed at the bottom ends of the fan blades, and the fixing assembly is fixedly installed inside the rotating shaft; the mounting assembly comprises a plug board, the left side and the right side of the plug board are both fixedly provided with an upper arc board, the left side and the right side of the plug board are both fixedly provided with a lower arc board, and the bottom end of the plug board is fixedly provided with a cross rod; the fixed subassembly includes the lifter plate, lifter plate bottom end fixed mounting has compression spring, lifter plate top fixed mounting has the roof, the left side fixed mounting of roof has splint, the inside fixed mounting of pivot has the fixed plate, fixed plate right side fixed mounting has the abaculus, the inside fixed mounting of pivot has last location axle, the inside fixed mounting of pivot has down location axle.

As optimization, the bottom of the inserting plate is provided with two grooves which are arranged at the bottom of the inserting plate in a bilateral symmetry mode, the two cross rods are arranged at the bottom of the grooves respectively, and when the inserting plate rotates, the grooves enable the embedded blocks to penetrate through the grooves, so that the embedded blocks are prevented from blocking rotation of the inserting plate.

As the optimization, go up the arc board kickup, the arc board kickdown, the inner wall radian and the last location axle surface of going up the arc board are mutually supported, the inner wall radian of arc board and the surface of location axle are mutually supported down, and when the picture peg moves down, go up the arc board and go up the laminating of location axle, reach the effect of location, make the picture peg can be rotatory around last location axle, when the picture peg ascended, lower location axle and the laminating of arc board down prevented the picture peg and continue to shift up, played and prevented the picture peg and shifted out.

Preferably, the top of the top plate is provided with slots, the top of one top plate is provided with two slots, the top plate is in a shape like a Chinese character 'shan', the fixing plate is inserted into the slots, and when the top plate ascends, the fixing plate slides in the slots, so that the fixing plate can be prevented from blocking the movement of the top plate.

As the optimization, splint include long slab and short slab, one roof one side fixed mounting has four short slabs and two long slabs, short slab and long slab are two a set of, the axial trough has been seted up to one side that splint were installed to the roof, the horizontal pole scarf joint is inside the axial trough, and when the picture peg was rotatory, the horizontal pole embedding advances the axial trough, and the horizontal pole inserts into between the splint, when the roof rose, promoted the horizontal pole through splint and rises to promote the picture peg and shift up.

As optimization, the length of the upper arc plate is longer than that of the lower arc plate, the length of the upper positioning shaft is shorter than that of the lower positioning shaft, the upper positioning shaft and the lower arc plate are not overlapped on a vertical line, and when the inserting plate descends, the problem that the upper positioning shaft and the lower arc plate are mutually impacted when the inserting plate descends can be solved due to the fact that the lower arc plate and the upper positioning shaft are staggered.

As the optimization, the inside fixed mounting of pivot has outstanding seat, the inside movable mounting of outstanding seat has interior axle, interior axle left side fixed mounting has the L board, L board top fixed mounting has the lance, and when the picture peg clockwise rotation in the pivot, the horizontal pole can promote L board anticlockwise rotation, and when the picture peg anticlockwise rotation, the horizontal pole promotes the lance to drive L board clockwise rotation.

Preferably, the upper magnet is fixedly mounted on the right side of the L plate, the lower magnet is fixedly mounted at the top end of the lifting plate, the upper magnet and the lower magnet repel each other, and when the upper magnet is parallel to the lower magnet, the lifting plate can be prevented from rising under the mutual repulsion action between the magnets.

The invention has the beneficial effects that: the fan blades are obliquely inserted into the rotating shaft and are positioned through the fixing assembly, after the positioning is finished, the fan blades are rotated to enable the fan blades to be perpendicular to the rotating shaft, the cross rods are inserted between the inner part of the shaft feeding groove and the clamping plates, when the L plate is pushed to rotate anticlockwise through the mounting assembly, the upper magnet on the right side of the L plate moves rightwards and is attached to the inner wall of the rotating shaft beside, at the moment, the upper magnet and the lower magnet are not parallel any more and do not generate repulsion force any more, the lifting plate is pushed to rise by the compression spring, the lifting plate drives the plugboard to rise through the top plate and the clamping plates, when the lower positioning shaft rises to the lower positioning shaft, the plugboard does not rise any more through the attachment of the lower positioning shaft and the lower arc plate, meanwhile, the purpose of fixing the plugboard is achieved due to the fact that the embedded blocks are clamped with the inner wall of the rotating shaft on the left side, the plugboard is prevented from being separated from the plugboard, and the plugboard is convenient to mount; when the flabellum is dismantled to needs, only need with the flabellum to pivot axle center department promotion, will go up the arc board and pass supreme location axle department, anticlockwise rotation flabellum, with the condition when the flabellum is rotatory to inserting, can extract the flabellum, be convenient for change the washing to and daily maintenance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a spindle according to the present invention;

FIG. 3 is a schematic view of the mounting assembly of the present invention;

FIG. 4 is a schematic view of a securing assembly of the present invention;

FIG. 5 is a schematic cross-sectional view of a rotating shaft according to the present invention;

FIG. 6 is a schematic view of a top plate of the present invention;

FIG. 7 is a schematic view of an insert of the present invention;

FIG. 8 is a perspective view of an insert according to the present invention;

FIG. 9 is an enlarged view of the L-plate of FIG. 7 according to the present invention.

In the figure: 1. a protective shell; 2. mounting the component; 21. inserting plates; 22. an upper arc plate; 23. a lower arc plate; 24. a cross bar; 3. a fixing assembly; 31. a lifting plate; 32. a compression spring; 33. a top plate; 34. a splint; 35. a fixing plate; 36. an insert block; 37. an upper positioning shaft; 38. a lower positioning shaft; 4. a support bar; 5. a rotor; 6. a rotating shaft; 7. a fan blade; 8. a motor; 9. a projecting seat; 10. an inner shaft; 11. an L plate; 12. a ram; 13. an upper magnet; 14. a lower magnet.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

Referring to fig. 1-8, a cooling fan for a high-power variable frequency motor includes a protective shell 1, an installation component 2 and a fixing component 3, wherein a support rod 4 is fixedly installed inside the protective shell 1, a rotor 5 is fixedly installed at one end of the support rod 4 far away from the protective shell 1, a rotating shaft 6 is fixedly installed at the rear side of the rotor 5, fan blades 7 are inserted into the surface of the rotating shaft 6, a motor 8 is fixedly installed on the outer side surface of the protective shell 1, the installation component 2 is fixedly installed at the bottom end of the fan blades 7, and the fixing component 3 is fixedly installed inside the rotating shaft 6; the mounting assembly 2 comprises an inserting plate 21, the left side and the right side of the inserting plate 21 are both fixedly provided with an upper arc plate 22, the left side and the right side of the inserting plate 21 are both fixedly provided with a lower arc plate 23, and the bottom end of the inserting plate 21 is fixedly provided with a cross rod 24; fixed subassembly 3 includes lifter plate 31, and lifter plate 31 bottom fixed mounting has compression spring 32, and lifter plate 31 top fixed mounting has roof 33, and the left side fixed mounting of roof 33 has

splint

34, and 6 inside fixed mounting of pivot have a fixed plate 35, and fixed plate 35 right side fixed mounting has an

abaculus

36, and 6 inside fixed mounting of pivot have

last location axle

37, and 6 inside fixed mounting of pivot have lower location axle 38.

Referring to fig. 3-5, the bottom of the inserting plate 21 is provided with two grooves, which are symmetrically arranged at the bottom of the inserting plate 21, and the two cross bars 24 are respectively arranged at the bottom of the grooves, so that when the inserting plate 21 rotates, the inserting blocks 36 can pass through the grooves due to the grooves, and the inserting blocks 36 are prevented from blocking the rotation of the inserting plate 21.

Referring to fig. 3 and 7, the upper arc plate 22 is bent upward, the lower arc plate 23 is bent downward, the radian of the inner wall of the upper arc plate 22 is matched with the surface of the upper positioning shaft 37, the radian of the inner wall of the lower arc plate 23 is matched with the surface of the lower positioning shaft 38, when the inserting plate 21 moves downward, the upper arc plate 22 is attached to the upper positioning shaft 37 to achieve the positioning effect, so that the inserting plate 21 can rotate around the upper positioning shaft 37, when the inserting plate 21 moves upward, the lower positioning shaft 38 is attached to the lower arc plate 23 to prevent the inserting plate 21 from moving upward, and the inserting plate 21 is prevented from moving out.

Referring to fig. 4 and 6, the top of the top plate 33 is provided with slots, two slots are formed on the top of one top plate 33, the top plate 33 is shaped like a Chinese character 'shan', the fixing plate 35 is inserted into the slots, and when the top plate 33 ascends, the fixing plate 35 slides in the slots, so that the fixing plate 35 is prevented from blocking the movement of the top plate 33.

Referring to fig. 6, the clamping plates 34 include long plates and short plates, four short plates and two long plates are fixedly mounted on one side of a top plate 33, the short plates and the long plates are in a group of two, a shaft groove is formed in one side of the top plate 33, where the clamping plates 34 are mounted, the cross bar 24 is embedded in the shaft groove, when the inserting plate 21 rotates, the cross bar 24 is embedded into the shaft groove, the cross bar 24 is inserted between the clamping plates 34, and when the top plate 33 ascends, the clamping plates 34 push the cross bar 24 to ascend, so that the inserting plate 21 is pushed to ascend.

Referring to fig. 4-5, the length of the upper arc plate 22 is longer than that of the lower arc plate 23, the length of the upper positioning shaft 37 is shorter than that of the lower positioning shaft 38, the upper positioning shaft 37 and the lower arc plate 23 are not overlapped on a vertical line, and when the inserting plate 21 descends, the upper positioning shaft 37 and the lower arc plate 23 can be prevented from colliding with each other due to the staggering of the lower arc plate 23 and the upper positioning shaft 37.

Referring to fig. 7, a protruding seat 9 is fixedly installed inside a rotating shaft 6, an inner shaft 10 is movably installed inside the protruding seat 9, an L-shaped plate 11 is fixedly installed on the left side of the inner shaft 10, a striker 12 is fixedly installed at the top end of the L-shaped plate 11, when the inserting plate 21 rotates clockwise in the rotating shaft 6, a cross rod 24 can push the L-shaped plate 11 to rotate counterclockwise, and when the inserting plate 21 rotates counterclockwise, the cross rod 24 pushes the striker 12, so that the L-shaped plate 11 is driven to rotate clockwise.

Referring to fig. 7, an upper magnet 13 is fixedly installed on the right side of the L-plate 11, a lower magnet 14 is fixedly installed on the top end of the lifting plate 31, the upper magnet 13 and the lower magnet 14 repel each other, and when the upper magnet 13 is parallel to the lower magnet 14, the lifting plate 31 can be prevented from being lifted up by the mutual repulsive force between the magnets.

In use, referring to fig. 3-6, when installing the fan blade 7, the fan blade 7 is obliquely inserted into the rotating shaft 6, when the upper positioning shaft 37 is attached to the lower positioning shaft 38, the fan blade 7 is rotated to make the fan blade 7 perpendicular to the rotating shaft 6, and at this time, the cross bar 24 is inserted between the inside of the shaft-entering groove and the clamping plate 34, when the fan blade 7 rotates, the fan blade 7 drives the inserting plate 21 to rotate in the rotating shaft 6, the cross bar 24 drives the L-plate 11 to rotate counterclockwise under the driving of the inserting plate 21, the upper magnet 13 on the right side of the L-plate 11 moves rightward to be attached to the inner wall of the rotating shaft 6 on the side, at this time, the upper magnet 13 and the lower magnet 14 are no longer parallel, no longer generating repulsion force, the compression spring 32 pushes the lifting plate 31 to rise, the lifting plate 31 drives the inserting plate 21 to rise through the top plate 33 and the clamping plate 34, when rising to the lower positioning shaft 38, the lower positioning shaft 38 is attached to the lower arc plate 23, so that the inserting plate 21 no longer rises, and at the inner wall of the left rotating shaft 6 is clamped by the embedding block 36, the purpose of fixing the inserting plate 21 is achieved, and the inserting plate 21 is prevented from being separated; when the fan blades 7 are detached, the fan blades 7 are pushed towards the axis of the rotating shaft 6, the upper arc plate 22 is pushed to be attached to the upper positioning shaft 37, the fan blades 7 are rotated anticlockwise, the fan blades 7 can be pulled out under the condition that the fan blades 7 are rotated to be inserted, meanwhile, the cross rod 24 pushes the striker 12, the upper magnet 13 and the lower magnet 14 of the L plate 11 are parallel to each other, the lifting plate 31 is fixed through repulsive force, the lifting plate 31 is prevented from rising, and the fan blades 7 can be conveniently installed next time.

In summary, the fan blades 7 are obliquely inserted into the rotating shaft 6, and are positioned by the fixing component 3, after being positioned, the fan blades 7 are rotated so that the fan blades 7 are perpendicular to the rotating shaft 6, at this time, the cross bar 24 is inserted between the inner part of the shaft-entering groove and the clamping plate 34, and pushes the L-plate 11 to rotate counterclockwise by the mounting assembly 2, the upper magnet 13 on the right side of the L-plate 11 moves rightward, the upper magnet 13 and the lower magnet 14 are not parallel at the moment and do not generate repulsion force any more, the compression spring 32 pushes the lifting plate 31 to rise, the lifting plate 31 drives the inserting plate 21 to rise through the top plate 33 and the clamping plate 34, when the lower positioning shaft 38 rises, the inserting plate 21 does not rise any more through the joint of the lower positioning shaft 38 and the lower arc plate 23, meanwhile, the insert block 36 is clamped with the inner wall of the left rotating shaft 6, so that the purpose of fixing the inserting plate 21 is achieved, the inserting plate 21 is prevented from being separated, and the purpose of conveniently installing the inserting plate 21 is achieved; when the fan blade 7 needs to be detached, the fan blade 7 is pulled out only by pushing the fan blade 7 to the axis of the rotating shaft 6, pushing the upper arc plate 22 to the upper positioning shaft 37, rotating the fan blade 7 anticlockwise, and rotating the fan blade 7 to the condition when the fan blade 7 is inserted, so that the replacement and cleaning are convenient, and the routine maintenance is realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides a high-power cooling blower for inverter motor, includes protective housing (1), installation component (2) and fixed subassembly (3), its characterized in that: a support rod (4) is fixedly arranged in the protective shell (1), a rotor (5) is fixedly arranged at one end of the support rod (4) far away from the protective shell (1), a rotating shaft (6) is fixedly arranged at the rear side of the rotor (5), the surface of the rotating shaft (6) is inserted with fan blades (7), the outer side surface of the protective shell (1) is fixedly provided with a motor (8), the mounting component (2) is fixedly arranged at the bottom end of the fan blade (7), the fixed component (3) is fixedly arranged in the rotating shaft (6), the protruding seat (9) is fixedly arranged in the rotating shaft (6), an inner shaft (10) is movably arranged in the protruding seat (9), an L-shaped plate (11) is fixedly arranged at the left side of the inner shaft (10), a striker (12) is fixedly arranged at the top end of the L plate (11), and an upper magnet (13) is fixedly arranged on the right side of the L plate (11);

the mounting assembly (2) comprises a plug board (21), upper arc boards (22) are fixedly mounted on the left side and the right side of the plug board (21), lower arc boards (23) are fixedly mounted on the left side and the right side of the plug board (21), and a cross rod (24) is fixedly mounted at the bottom end of the plug board (21);

fixed subassembly (3) include lifter plate (31), lifter plate (31) top fixed mounting has down magnet (14), it repulses with lower magnet (14) to go up magnet (13), lifter plate (31) bottom fixed mounting has compression spring (32), lifter plate (31) top fixed mounting has roof (33), the left side fixed mounting of roof (33) has splint (34), pivot (6) inside fixed mounting has fixed plate (35), fixed plate (35) right side fixed mounting has abaculus (36), pivot (6) inside fixed mounting has last location axle (37), pivot (6) inside fixed mounting has down location axle (38).

2. The cooling fan for the high-power variable frequency motor according to claim 1, characterized in that: the bottom of the inserting plate (21) is provided with two grooves which are arranged at the bottom of the inserting plate (21) in a bilateral symmetry mode, and the two cross rods (24) are arranged at the bottom of the grooves respectively.

3. The cooling fan for the high-power variable frequency motor according to claim 1, characterized in that: go up arc board (22) kickup, arc board (23) kickdown down, the inner wall radian of going up arc board (22) and last location axle (37) surface are mutually supported, the inner wall radian of arc board (23) and the surface of location axle (38) are mutually supported down.

4. The cooling fan for the high-power variable frequency motor according to claim 1, characterized in that: slots are formed in the top of the top plate (33), two slots are formed in the top of one top plate (33), the top plate (33) is in a shape like a Chinese character 'shan', and the fixing plate (35) is inserted into the slots in an inserting mode.

5. The cooling fan for the high-power variable frequency motor according to claim 1, characterized in that: splint (34) are including long slab and short slab, one roof (33) one side fixed mounting has four short slabs and two long slabs, short slab and long slab are two a set of, the axial trough has been seted up to one side that splint (34) were installed in roof (33), horizontal pole (24) scarf joint is inside the axial trough.

6. The cooling fan for the high-power variable frequency motor according to claim 1, characterized in that: the length of the upper arc plate (22) is longer than that of the lower arc plate (23), the length of the upper positioning shaft (37) is shorter than that of the lower positioning shaft (38), and the upper positioning shaft (37) and the lower arc plate (23) are not overlapped on a vertical line.